US20130175083A1 - Double walled electric vehicle charging station enclosure - Google Patents
Double walled electric vehicle charging station enclosure Download PDFInfo
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- US20130175083A1 US20130175083A1 US13/607,664 US201213607664A US2013175083A1 US 20130175083 A1 US20130175083 A1 US 20130175083A1 US 201213607664 A US201213607664 A US 201213607664A US 2013175083 A1 US2013175083 A1 US 2013175083A1
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- United States
- Prior art keywords
- charging station
- wall
- station enclosure
- enclosure
- casing
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/14—Conductive energy transfer
- B60L53/18—Cables specially adapted for charging electric vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/14—Conductive energy transfer
- B60L53/16—Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/30—Constructional details of charging stations
- B60L53/305—Communication interfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/30—Constructional details of charging stations
- B60L53/31—Charging columns specially adapted for electric vehicles
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0247—Electrical details of casings, e.g. terminals, passages for cables or wiring
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
Abstract
In various embodiments, a charging station enclosure is provided having a casing for enclosing circuitry therein, the casing comprising a side wall surrounding the circuitry, wherein at least a portion of the side wall comprises a double wall with a space therebetween.
Description
- The present application is a continuation of PCT m Application Serial Number PCT/US2011/027622, by Bonwit et al., entitled DOUBLE WALLED ELECTRIC VEHICLE CHARGING STATION ENCLOSURE, filed Mar. 8, 2011, herein incorporated by reference in its entirety.
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- PCT/US2011/027622 claims priority of the following U.S. Provisional patent applications all herein incorporated by reference in their entireties:
- Ser. No. 61/325,787, filed on Apr. 19, 2010, entitled An ELECTRIC VEHICLE CHARGING STATION, by Bonwit et al.;
- Ser. No. 61/350,466, filed on Jun. 1, 2010, entitled AN ELECTRIC VEHICLE CHARGING STATION, by Bonwit et al.; and
- Ser. No. 61/339,749, filed on Mar. 8, 2010, entitled BREAK-AWAY CABLE CONNECTOR, by Petrie et al.
- PCT/US2011/027622 is continuation-in-part of the following U.S. Design patent applications, which are herein incorporated by reference in their entireties:
- Ser. No. 29/360,201, filed Apr. 21, 2010, entitled ELECTRIC VEHICLE CHARGER, by Petrie et al.; and
- Ser. No. 29/360,300, filed Apr. 22, 2010, entitled ELECTRIC VEHICLE CHARGER, by Petrie et al.
- PCT/US2011/027622 claims priority of the following U.S. Provisional patent applications all herein incorporated by reference in their entireties:
- The present application is a continuation-in-part of PCT/US2011/027620, filed on Mar. 8, 2011, entitled ELECTRIC VEHICLE CHARGING STATION WITH CABLE RETAINING ENCLOSURE, by Bonwit et al., and PCT/US2011/027621, filed on Mar. 8, 2011, entitled ELECTRIC VEHICLE CHARGING STATION ENCLOSURE AND MOUNTING APPARATUS, by Bonwit et al., both herein incorporated by reference in their entireties, which both claim priority of the following U.S. Provisional patent applications:
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- Ser. No. 61/325,787, filed on Apr. 19, 2010, entitled AN ELECTRIC VEHICLE CHARGING STATION, by Bonwit et al.;
- Ser. No. 61/350,466, filed on Jun. 1, 2010, entitled AN ELECTRIC VEHICLE CHARGING STATION, by Bonwit et al.; and
- Ser. No. 61/339,749, filed on Mar. 8, 2010, entitled BREAK-AWAY CABLE CONNECTOR, by Petrie, et al.
- PCT/US2011/027620 and PCT/US2011/027621 are both continuation-in-parts of U.S. Design patent application Nos. 29/360,201 and 29/360,300.
- The present application is a continuation-in-part PCT Application No. PCT/US2011/000433, filed Mar. 8, 2011, entitled BREAK-AWAY CABLE CONNECTOR, by Petrie, et al, herein incorporated by reference in its entirety, which claims the priority of the following U.S. Provisional patent applications:
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- Ser. No. 61/339,749, filed on Mar. 8, 2010, entitled BREAK-AWAY CABLE CONNECTOR, by Petrie, et al.;
- Ser. No. 61/397,984, filed on Jun. 18, 2010; and
- Ser. No. 61/460,413, filed on Jun. 18, 2010.
- In electric vehicle charging systems, a charging station enclosure has a requirement for supporting a charging station cable and protecting internal electrical and electronic components of the electric vehicle charging station.
- As effective electric vehicle are becoming more feasible and more desirable, there will be an increased interest in home-based and commercial charging stations. To M minimize charging times, it is desirable to use a high voltage (e.g., 240 volt) charging system. When using such systems there are both safety considerations and safety laws that need to be addressed to minimize the risk to homeowners and their property. Technologies addressing these considerations may also be useful to improve vehicle charging stations in industrial and commercial settings.
- The charging station in a home, commercial, or industrial environment will be exposed to extreme environmental factors of temperature, moisture, and sun light. To protect the electrical and electronic circuitry of the charging station must be able to withstand the extreme environmental factors.
- Further, the charging station cable will be attached directly to the charging station enclosure. The charging station cable may be yanked to cause extreme stress on the charging station enclosure if, for instance, the driver leaves the charging station cable attached and drives away. Such a scenario will cause excess torquing of the charging station at its connection points to a solid structure and potentially could cause damage to the charging station enclosure.
- Additionally, the charging station cable requires a provision for storing the charging station cable. When not in use the charging station cable must be placed attached to or near the charging station enclosure. Such a storage facility must be convenient for the user to take from the storage and to replace in its storage position.
- Therefore what is needed is a charging station configured to cope with structurally damaging forces and extreme environments, while minimizing the likelihood of exposing live electrical parts to people or flammable property. Further, what is needed is a charging station with a provision for storage of a charging station cable.
- In various embodiments, a charging station enclosure is provided having a casing for enclosing circuitry therein, the casing comprising a side wall surrounding the circuitry, wherein at least a portion of the side wall comprises a double wall with a space therebetween.
- In some embodiments, the casing has wall supports in the space between the double wall. The wall supports may have drainage features, for example drainage openings, drainage ports, or the like. In one embodiment, the drainage features may include a space between the wall supports and the front plate which is fastened to the casing. The casing may further include drainage openings, which in some embodiments may be in an outer wall of the double wall.
- In various embodiments some of the wall supports have fastener receivers. In some embodiments, the wall supports with fastener receivers have the drainage ports.
- In some embodiments, the enclosure comprises a front plate fastened to the casing with a gasket creating a seal between the front plate and an inner wall of the double wall.
- In some embodiments, thermal insulation in the space between the double walls.
- In various embodiments, a charging station enclosure is provided having a casing for enclosing circuitry therein. In this embodiment, the casing includes a side wall surrounding the circuitry, with at least a portion of the side wall having an inner wall and an adjacent outer wall. A front plate is fastened to the casing.
- In some embodiments, a gasket creates a seal between the front plate and the inner wall.
- In some embodiments, the front plate may be fastened M to the casing with a water tight seal between the front plate and the inner wall such that water penetrating past an interface between the outer wall and the face plate is directed away from passing beyond the inner wall. Some embodiments may have at least one drainage opening to allow accumulated water between the inner wall and the outer wall to drain therefrom. Further, the casing may have wall supports with drainage features located in a space between the inner wall and the outer wall.
- Fastener receivers may be located between the inner wall and the outer wall, and the front plate may be fastened to the casing via fasteners, such that the fasteners are received by the fasteners receivers.
- In another embodiment, a charging station enclosure is provided having a casing having a side wall, a rear mounting surface, and a front facing user interface panel having an angle with respect to the rear mounting surface so as to facilitate viewing by a user when viewing from a positioned adjacent to and above the charging station enclosure. In some such embodiments, the front facing panel has an angle of approximately ten degrees toward the rear mounting surface.
- In some embodiments, the side wall may have a generally truncated conical configuration.
- Various embodiments may have a connector receptacle for receiving and retaining an energy transfer connector. In some embodiments, the connector receptacle is recessed from the front facing user interface panel.
- In yet another embodiment, a charging station enclosure is provided having a surrounding side wall, a front plate secured to the side wall, and a rear portion. The rear portion has an opening for receiving a electric utility wiring; and a plurality of exclusion spacers positioned m adjacent to the opening.
- In various further embodiments, the plurality of exclusion spacers may extend from the rear portion into and interior of the enclosure. In some embodiments, a power transfer cable opening is located in a downward facing portion of the side wall. Some embodiments may further include a connector receptacle recessed from the front plate for receiving and retaining an energy transfer connector of a power transfer cable.
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FIG. 1 is a front perspective drawing of a possible embodiment of an electric vehicle charging station. -
FIG. 2 is rear perspective drawing of a possible embodiment of an electric vehicle charging station. -
FIG. 3A is a drawing of a side view of a possible embodiment of an electric vehicle electric vehicle charging station. -
FIG. 3B is an enlarged partial side view of the embodiment ofFIG. 3A . -
FIG. 4 is an exploded rear perspective view of a possible embodiment of an electric vehicle charging station. -
FIG. 5A is a drawing showing a perspective exploded view of an embodiment of electric vehicle charging station. -
FIG. 5B is a drawing showing a perspective view of the embodiment of the interior of an electric vehicle charging station ofFIG. 5A illustrating placement of the wiring, electrical connectors, and electrical and electronic circuitry. -
FIG. 5C is a drawing showing a perspective view of the embodiment of the interior of an electric vehicle charging station ofFIG. 5B illustrating the interior of the electric charging station enclosure. -
FIG. 5D is a drawing showing a cross sectional view of an embodiment of the electric charging station enclosure ofFIG. 5C . -
FIG. 5E is a drawing showing a perspective view of the embodiment of the electric charging station enclosure ofFIG. 5C illustrating the double wall structure of the charging station enclosure. -
FIG. 5F is a drawing showing a bottom view of the embodiment of the electric charging station enclosure ofFIG. 5C . -
FIG. 6 is a drawing of a top view of an embodiment of an electric vehicle charging station. -
FIGS. 7A and 7B are drawings of a bottom view of an embodiment of an electric vehicle charging station. -
FIG. 8 is a drawing of a right side view of an embodiment of an electric vehicle charging station. -
FIG. 9 is a drawing of a left side view of an embodiment of an electric vehicle charging station. -
FIG. 10 is a drawing of a rear view of an embodiment M of an electric vehicle charging station. -
FIGS. 11A-11D are drawings of a back wall mounting plate of an embodiment of an electric vehicle charging station. -
FIG. 1 is a front perspective drawing of an embodiment of an electric vehicle charging station. The chargingstation enclosure 10 is generally a truncated conical section that contains the power distribution circuitry for charging an electric vehicle. Afront plate 15 is secured to an edge of a front opening of theperipheral casing 11 of the chargingstation enclosure 10 where the inner surface of the front edge of theperipheral casing 11 has a generally circular surface. The front edge of theperipheral casing 11 has a number of holes to receive fasteners such as screws that secure thefront plate 15 to the chargingstation enclosure 10. A pliable O-ring is situated between thefront plate 15 and the front edge of theperipheral casing 11 of the chargingstation enclosure 10 to seal the interior of the chargingstation enclosure 10 from the exterior environment. - The front plate has openings through which controls such as a
start switch 35, stopswitch 35 andcondition indicators 37 are placed, thus providing a user interface. Acable connector 30 is attached to the chargingstation enclosure 10 to allow connection toenergy distribution circuitry 200 ofFIG. 5 that is used for the transferring electrical energy to the electric vehicle being charged. Thecable connector 30 is connected to an energy transfer conduit such as a flexible,elongated power cable 20 having a length sufficient for connecting to the electric vehicle. The diameter of thepower cable 20 being dependent upon the amount of current carried by thepower cable 20 and the environmental and usage requirements for the distribution of electrical energy from the electric vehicle charging station. Secured to the distal end of thepower cable 20 is an electric vehicle charginginterface connector 25 that is attached to a charging port of the electric vehicle for the transfer of the electrical energy to the electric vehicle for charging. -
FIG. 2 is rear perspective drawing of an embodiment of an electric vehicle charging station. The truncated conical section of the chargingstation enclosure 10 is placed such that the larger diameter side is the front opening of theperipheral casing 11 to which thefront plate 15 is attached. The smaller diameter is placed at therear surface 40 of the chargingstation enclosure 10. The rear of the chargingstation enclosure 10 is attached to a vertical mounting surface such as a wall or pole. The chargingstation enclosure 10 is attached to the vertical mounting surface through aback plate 100. Theback plate 100 is connected to the vertical mounting surface and the chargingstation enclosure 10 is mounted to theback plate 100. -
FIG. 3A is a drawing of a side view of an embodiment of an electric vehicle charging station.FIG. 3B is an enlarged partial side view of the embodiment ofFIG. 3A . The truncated conical section of the chargingstation enclosure 10 is formed such that thetop edge 12 of theperipheral casing 11 has an angle of approximately 25° (with a range of from 10° to 45° from a horizontal plane) or 65° from a vertical plane. This angle permits thepower cable 20 ofFIG. 1 to be draped over thetop edge 12 of theperipheral casing 11 of the chargingstation enclosure 10 to allow ease of removal of thepower cable 20 for connection to the electric vehicle. An advantage of providing a means for supportingcable 20 by using the chargingstation enclosure 10 is that it eliminates the need for a separate cable hanger, and thus reduces space and lowers the overall system cost. Theperipheral casing 11 hassteps 14 of ridges and grooves formed in the surface of theperipheral casing 11 to facilitate retention and release of thepower cable 20 ofFIG. 1 when it is stored on thetop edge 12 of theperipheral casing 11 of the chargingstation enclosure 10. Thefront plate 15 is placed at an angle of approximately 80° to a horizontal axis or equivalently 10° to a vertical axis. These angles may vary or be adjusted in other embodiments. The angledfront plate 15 facilities viewing of the charging station front plate from slightly above thefront plate 15, to allow the chargingstation enclosure 10 to be conveniently mounted at a lower level than a user's head while still having thefront plate 15 generally facing the user's m head. Further, it allows the electric vehicle charging station to comply with federal or local laws requiring a maximum height, i.e. 48 inches, to facilitate access by disabled users, while still being very usable by standing users. -
FIG. 4 is an exploded rear perspective drawing of an embodiment of an electric vehicle charging station. The chargingstation enclosure 10 has a rear surface orwall 40 that is recessed into theperipheral casing 11 of the chargingstation enclosure 10. Therear surface 40 has stiffeningplates 45 formed in therear surface 40 and the bottom surface of the chargingstation enclosure 10 to provide necessary stiffening of the chargingstation enclosure 10 to inhibit damage from the insertion of the electric vehicle charginginterface connector 25 and from the weight of thepower cable 20 when it is placed at thetop edge 12 of the chargingstation enclosure 10. - The
rear surface 40 hasstandoffs back plate 100 from being improperly placed when the electric vehicle charging station is mounted to theback plate 100. Therear surface 40 further hasfastener openings back plate 100 to therear surface 40 of the chargingstation enclosure 10. The embodiment as shown has twofastener openings back plate 100 to therear surface 40. - The
rear surface 40 has anopening 365 that is aligned with theopening 120 of theback plate 100. Thecable openings station enclosure 10 from wall directly behind the chargingstation enclosure 10 to connect to theenergy distribution circuitry 200 ofFIG. 5 within the chargingstation enclosure 10. Optionally, the energy delivery cable (not shown) may be routed via an electrical conduit (not shown) external to the wall (not shown) and enter theenclosure 10 through an alternate cable opening 330 (FIGS. 7A and 7B ) in the bottom of the chargingstation enclosure 10. In such a case, anoptional tab 335 may cover thecable opening 365. Or if the energy delivery cable enters through theback cable opening 365, an optional tab (not shown) may cover thealternate cable opening 330. Or, one or both of thecable openings 365 and/or 330 may be solid initially and thereafter drilled to make the requiredcable opening back plate 100 hasfasteners openings back plate 100 hasopenings fasteners back plate 100 to the vertical surface (wall or pole). Theback plate 100 having a separate connection to the vertical surface from the chargingstation enclosure 10 permits a variety of connections between the chargingstation enclosure 10 and the vertical surface and meets necessary regulatory requirements that theenergy distribution circuitry 200 ofFIG. 5A not have a direct connection to the vertical surface to which it is mounted. - In various embodiments, the charging
station cable 20 has acable connector 30 that is structured to breakaway from the chargingstation enclosure 10 whenever the chargingstation cable 20 is placed under extreme tension. As noted in Petrie et al., it is anticipated that the electrical vehicle charging station may be used in residential garages to charge personal vehicles. A 240 volt residential power system could provide for overnight vehicle charging. In such a setting, it is anticipated that less-than ideal conditions might exist. For example, a garage can be expected to be filled with objects that could interfere with easy access to the charging station. Moreover, the vehicle may end up parked in a position that places its charging port far from the charging station console. Additionally, while charging is taking place, pets, children and adults may want to pass between the charging station console and the charging port. - As was previously noted, in such a setting there are many possible situations in which a charging
station cable 20 may be physically abused. For example, while extending the cable to the vehicle, a user may yank or whip the cable to get it passed an obstacle. Also, while the cable is attached to a vehicle, a person or object could inadvertently strike the cable, placing it in high tension. It is also possible that a vehicle could be driven away while the vehicle connector is still attached to the vehicle. - Petrie et al. provides a mechanical weak link in the cable. The weak link is configured to fail in a way that limits risks to a user. More particularly, this weak link limits the risk that such events cause damage to the charging
station enclosure 10 and potentially expose users or flammable materials to a high-power power source. - Prior to the breaking away of the charging
station cable 20, the chargingstation enclosure 10 is under increased torquing moments at the cable receivingconnector opening 340 ofFIGS. 5F and 7 . This torque is transferred to theopenings back plate 100 through thefasteners rear surface 40 of the chargingstation enclosure 10. The locations of theopenings back plate 100 are located to minimize the effects of this torque to inhibit damage to the chargingstation enclosure 10. Similarly, the locations of thefasteners - The
openings rear surface 40 of the chargingstation enclosure 10, are approximately aligned vertically with the axis of thecable connector 30. The alignment of theopenings cable connector 30 minimizes the effects of the torquing due to the chargingstation cable 20 being under tension in a breakaway situation. Thefasteners back plate 100 are aligned with theopenings station enclosure 10 to theback plate 100 at thefasteners openings fasteners back plate 100 to the vertical surface (wall or pole) are also essentially aligned with the axis of thecable connector 30 to inhibit the effects of the torquing when the chargingstation cable 20 is under tension in a breakaway situation. -
FIG. 5A is a drawing showing a perspective exploded view of an embodiment of an electric vehicle charging station.FIG. 5B is a drawing showing a perspective view of the embodiment of the interior of an electric vehicle charging station ofFIG. 5A illustrating placement of the wiring, electrical connectors, and electrical and electronic circuitry.FIG. 5C is a drawing showing a perspective view of the embodiment of the interior of an electric vehicle charging station ofFIG. 5B illustrating the interior of the electric charging station enclosure.FIG. 5D is a drawing showing a cross sectional view of an embodiment of the electric charging station enclosure ofFIG. 5C .FIG. 5E is a drawing showing a perspective view of the embodiment of the electric charging station enclosure ofFIG. 5C illustrating the double wall structure of the charging station enclosure.FIG. 5F is a drawing showing a bottom view of the embodiment of the m electric charging station enclosure ofFIG. 5C . Theperipheral casing 11 of the chargingstation enclosure 10 includes aninner wall 60 and anouter wall 90. Theinner wall 60 provides an extra level of isolation and protection for theenergy distribution circuitry 200 from the external environment. Between theinner wall 60 and theouter wall 90 are wall support features 65 and 205 to provide support to strengthen the chargingstation enclosure 10. - The wall support features 65 include fastener receiving locations 65 (screw holes as shown) to receive the fasteners 75 (screws) that secure the
front plate 15 to the chargingstation enclosure 10. Thefront plate 15 further hasholes 80 through which thefasteners 75 pass to be attached to the front edge of the opening in theperipheral casing 11 of the chargingstation enclosure 10 at thefastener receivers 65. An O-ring 70 that conforms to the shape of the front edge of theperipheral casing 11 is placed on theinner wall 60 and is compressed to provide an environmental seal between theenergy distribution circuitry 200 and the external environment. Generally the environmental seal is a waterproof seal, but may include other types of sealing material for isolating theenergy distribution circuitry 200 from other environmental contaminants. - The space between the inner and outer walls provide an air gap that provides, or may contain, thermal insulation between the inner and outer walls. This inhibits the outer wall from being heated by the electronics within the housing and inhibits heat flow from outside the housing to the electronics within the housing.
- The space between the inner and outer walls provides a chamber or channel that traps any water that intrudes past the edge of the front cover. Also, the inner wall may still m provide an environmental seal even if the outer wall is struck, punctured, or scraped so that it becomes inadvertently cracked or otherwise damaged.
- Refer now to
FIG. 5E . Should moisture be able to enter into the space between theinner wall 60 and theouter wall 90, such as by theouter wall 90 of the chargingstation enclosure 10 becoming damaged or by any gap or opening between thefront plate 15 and theouter wall 90, the wall support features 65 havedrainage ports 215 formed in them to allow water to flow past them. The wall support features 205 chargingstation enclosure 10 are placed such they are recessed to allow a space between the wall support features and thefront plate 15 to further permit the passage of water that may enter the space between theinner wall 60 and theouter wall 90. The water is able to flow to the bottom of the chargingstation enclosure 10 and exits through thedrainage openings 220 as shown inFIG. 5F . - A
cover plate 85 is provided to be placed over thefasteners 75 in agroove 95 of thefront plate 15 to provide a decorative appearance for thefront plate 15 and to protect the screws from direct contact with the elements. - The
peripheral casing 11 of the chargingstation enclosure 10 and thefront plate 15 haveopenings interface connector receptacle 315 ofFIG. 1 . Theinterface connector receptacle 315 provides a latching arrangement to hold the electric vehicle charginginterface connector 25 when not in use. - In various embodiments, the
interface connector receptacle 315 is constructed as a feature of the chargingstation enclosure 10 rather than being separately installed in theopenings 300. In various embodiments, the chargingstation enclosure 10 is molded of an organic plastic compound with theinterface connector receptacle 315 being formed during the molding process. - The interior view of the
rear surface 40, as shown inFIGS. 5A , 5B, and 5C, have the mountingpositions 255 for theenergy distribution circuitry 200. As shown inFIG. 5C thecable opening 365 with its installedtab 335 is positioned centrally betweenwiring exclusion spacers 250. Thewiring exclusion spacers 250 are features positioned on therear surface 40 to indicate that the wiring or components of theenergy distribution circuitry 200 should not be placed in the area defined by thewiring exclusion spacers 250. Thewiring exclusion spacers 250 are to inhibit placement of obstacles in the region of thecable opening 365. During installation of the energy delivery conduit (not shown) through therear surface 40, theoptional tab 335 must be removed. In some embodiments the installation has thecable opening 365 being drilled out of therear surface 40. Thewiring exclusion spacers 250 help insure that there are no obstacles to the drilling of thecable opening 365. In addition, by thewiring exclusion spacers 250 acting to inhibit the movement or relocation of wires or other components into the area defined by thewiring exclusion spacers 250, such wires or other components will not be damaged by drilling into this area. -
FIG. 6 is a drawing of a top view of an embodiment of an electric vehicle charging station. Thegrooves 14 are illustrated as retaining thepower cable 20 as it is draped over thetop edge 12 and rests on theouter wall 90 ofFIGS. 5A-5F of theperipheral casing 11 of the chargingstation enclosure 10. The electric vehicle charginginterface connector 25 that is connected to thepower cable 20 is inserted to theinterface connector receptacle 315 that is recessed into thefront plate 15 of the chargingstation enclosure 10. -
FIGS. 7A and 7B are drawings of a bottom view of an m embodiment of an electric vehicle charging station. Asecond opening 330 in theperipheral casing 11 of the chargingstation enclosure 10 has anelectrical conduit connector 320 that provides an alternative connection point for the energy delivery conduit (not shown). Thecable connector 30 is connected to thecable receiving connector 325 that is attached to theperipheral casing 11 of the chargingstation enclosure 10. Thecable connector 30 is connected to thecable receiving connector 325 to allow connection of theenergy distribution circuitry 200 ofFIGS. 5A and 5B to thepower cable 20. The electric vehicle charginginterface connector 25 is placed in theinterface connector receptacle 315 that is constructed to receive and retain the electric vehicle charginginterface connector 25. Theinterface connector receptacle 315 is constructed to provide isolation from the external environment and protection of the electrical contacts of the electric vehicle charginginterface connector 25 when an electric vehicle is not being charged. - The electric vehicle charging
interface connector 25 has a plastic ring around the outside that locates it within theinterface connector receptacle 315. Inside this ring are metal pins. On theinterface connector 25, there is a circular channel that the plastic ring locates in theinterface connector receptacle 315. In theinterface connector receptacle 315 are plastic locating features for the pins to locate on for storing the connector until the next usage. When theinterface connector 25 is seated in any receptacle, a rubber seal on the inside of the plastic ring makes contact with the exterior wall of the inner circular channel of theinterface connector receptacle 315 to seal theinterface connector 25 from exposure to the external environment. - The
stiffening plates 45 formed in the rear surface m and the bottom surface of theperipheral casing 11 of the chargingstation enclosure 10 provide necessary reinforcement of the chargingstation enclosure 10 to inhibit damage from the insertion of the electric vehicle charginginterface connector 25 and from the weight of thepower cable 20 when it is placed at thetop edge 12 of the chargingstation enclosure 10. -
FIG. 8 is a drawing of a right side view of an embodiment of an electric vehicle charging station. Thepower cable 20 is draped over thetop edge 12 of theperipheral casing 11 of the chargingstation enclosure 10 and frictionally retained by thesteps 14 to inhibit the cable from sliding to thevertical surface 400 ofFIG. 9 and potentially causing crimping of thepower cable 20. Thecable connector 30 is connected to thecable receiving connector 325 that is attached to theperipheral casing 11 of the chargingstation enclosure 10. Thecable connector 30 is connected to thecable receiving connector 325 to allow connection of theenergy distribution circuitry 200 ofFIG. 5 to thepower cable 20. The electric vehicle charginginterface connector 25 is placed in theinterface connector receptacle 315 that is recessed in thefront plate 15. -
FIG. 9 is a drawing of a left side view of an embodiment of an electric vehicle charging station. The electricvehicle charging station 5 is secured to thevertical surface 400 with thefasteners interface connector receptacle 315 is connected to or integrated with the bottom of theperipheral casing 11 of the chargingstation enclosure 10. Thepower cable 20 is draped over thetop edge 12 and frictionally retained by thesteps 14. The electric vehicle charginginterface connector 25 is placed and secured in theinterface connector receptacle 315 recessed within thefront plate 15. Theelectrical conduit connector 320 is placed at the bottom of theperipheral casing 11 of the chargingstation enclosure 10 to allow the energy delivery conduit (electrical cable) to pass through the chargingstation enclosure 10 to theenergy distribution circuitry 200 ofFIGS. 5A and 5B . In this embodiment, with the energy delivery conduit (electrical conduit) being placed at the bottom surface of the chargingstation enclosure 10, theopening 365 in therear surface 40 ofFIG. 4 has theoptional tab 335 in place to seal the rear surface from the external environment. Or, in this and other embodiments, theopening 365 may be drilled from a solid portion of therear surface 40. -
FIG. 10 is a drawing of rear panel of an embodiment of an electric vehicle charging station. Therear surface 40 is recessed into theperipheral casing 11 of the chargingstation enclosure 10. Therear surface 40 has stiffeningplates 45 formed in therear surface 40 and into the bottom of theperipheral casing 11 of the chargingstation enclosure 10 to provide necessary reinforcing of the chargingstation enclosure 10 to inhibit damage from the insertion of the electric vehicle charginginterface connector 25 ofFIG. 1 and from the weight of thepower cable 20 when it is placed at thetop edge 12 of the chargingstation enclosure 10 ofFIG. 3 . - The
rear surface 40 hasstandoffs back plate 100 from being improperly placed when the electric vehicle charging station is mounted to theback plate 100. Therear surface 40 further hasopenings FIG. 4 ) for securing fasteners to join theback plate 100 to therear surface 40 of the chargingstation enclosure 10. - The
rear surface 40 has anopening 365 that is aligned with theopening 120 of theback plate 100. Thecable openings station enclosure 10 from a vertical surface (wall) directly behind the chargingstation enclosure 10 to connect to theenergy distribution circuitry 200 ofFIGS. 5A and 5B within the chargingstation enclosure 10. Optionally, the energy delivery conduit (not shown) may enter via anelectrical conduit connector 320 external to the wall (not shown) and through analternate cable opening 330 in the bottom of theperipheral casing 11 of the chargingstation enclosure 10. In such a case, anoptional tab 335 may cover thecable opening 365. Or, in this and other embodiments, theopening 330 may be drilled from a solid portion bottom surface of theenclosure 10. Conversely an optional tab (not shown) may cover thealternate cable opening 330. Theback plate 100 hasfasteners openings back plate 100 hasopenings fasteners back plate 100 to the vertical surface (wall or pole). The back plate having a separate connection to the vertical surface from the chargingstation enclosure 10 permits a variety of connections between the chargingstation enclosure 10 and the vertical surface and meets necessary regulatory requirements that theenergy distribution circuitry 200 ofFIGS. 5A and 5B not have a direct connection to the vertical surface to which it is mounted. -
FIGS. 11A-11D are drawings of a back wall mounting plate of an embodiment of an electric vehicle charging station. Theback plate 100 hasfasteners openings station enclosure 10 ofFIGS. 4 and 10 . Theback plate 100 hasopenings fasteners back plate 100 to the vertical surface (wall or pole). Theback plate 100 having a separate connection to the vertical surface from the chargingstation enclosure 10 permits a variety of connections between the charging station enclosure and the vertical surface and meets necessary regulatory requirements that theenergy distribution circuitry 200 ofFIGS. 5A and 5B not have a direct connection to the vertical surface to which it is mounted. - The
back plate 100 has anopening 120 that is aligned with theopening 365 ofFIGS. 4 and 10 . Thecable openings station enclosure 10 from a wall directly behind the chargingstation enclosure 10 to connect to theenergy distribution circuitry 200 ofFIGS. 5A and 5B within the chargingstation enclosure 10. - The
back plate 100 is constructed from a metal plate or sheet such as an aluminum, steel, or other known material plate. Theback plate 100 is constructed such that it satisfies regulatory requirements. Further, theback plate 100 has no visible fasteners and is not visible when used. The vertical andhorizontal edges back plate 100 is mounted correctly to the vertical surface. Theback plate 100 is optional. The electric vehicle charging station can be mounted with or without it. - One of the many advantages of the back plate is that the shape of the
back plate 100 allows a bubble level to be used along the vertical and horizontal edges when mounting theback plate 100, and thus the charging station enclosure mounted to the back plate will be level. The edges allow theback plate 100 to be mounted true before mounting of the chargingstation enclosure 10. Further, the squared size of theback plate 100 also reduces the size of the stock used to manufacture, and allow multipleback plates 100 from the same piece of smaller stock, keeping costs of materials down. Moreover, after theback plate 100 is mounted, aflange portion 16 of the chargingstation enclosure 10 may be rested on the top curved edge 510 (FIGS. 11A and 11D ) of theback plate 100. The curved edge 510 (FIGS. 11A and 11D ) allows the chargingstation enclosure 10 to be turned or rotated to align theopenings fasteners back plate 100 generally restrains the up/down and left/right movement of thecharger station housing 10, but allows it to rotate to line up the screw holes in the housing with threads in theback plate 100, or with threads in nuts restrained by theback plate 100. Thus, in some embodiments, the charging station enclosure can be seated and hung from the back plate while the installer does an installation. - Referring to
FIGS. 6 , 7A, and 7B, one advantage of storing the flexible,elongated power cable 20 over the top of the chargingstation enclosure 10 is that the radius of curvature of thepower cable 20 is better for cable health, as compared to a hook or other means. The round surface of the chargingstation enclosure 10 keeps thepower cable 20 from experiencing greater pressure against the cable, and/or low radius bending (especially localized sharp bending at corners, edges, or the like) than might occur with a hook or a retention means with edges or sharp surfaces. Most of the time thepower cable 20 will be stored draped over the top of the chargingstation enclosure 10. The larger radius of curvature of the chargingstation enclosure 10 keeps thepower cable 20 from over bending, and/or kinking to extend the life of thepower cable 20. In addition, due to the configuration, as thepower cable 20 is pulled, it can easily roll off the top of the chargingstation enclosure 10 to dispense easily with little effort by the user. Also, the configuration allows thepower cable 20 to be more easily returned over the chargingstation enclosure 10 when finished. - In some embodiments, the charging
station enclosure 10 is constructed of a plastic that may be rotomolded or a fiber reinforced plastic panel. In other embodiments, the chargingstation enclosure 10 may be constructed metal such as steel or aluminum. While the embodiments of this invention illustrate an electric vehicle charging station, the structure of the chargingstation enclosure 10 and theback plate 100 are adaptable to other applications and these other application are in keeping with the principles of this invention. - While this invention has been particularly shown and described with reference to the embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made without departing from the spirit and scope of the invention.
Claims (34)
1. A charging station enclosure comprising a casing for enclosing circuitry therein, the casing comprising a side wall surrounding the circuitry, wherein at least a portion of the side wall comprises a double wall with a space therebetween.
2. The charging station enclosure of claim 1 , wherein the casing further comprises wall supports in the space between the double wall.
3. The charging station enclosure of claim 2 , wherein the wall supports comprise drainage features.
4. The charging station enclosure of claim 3 , wherein the casing further comprises drainage openings.
5. The charging station enclosure of claim 3 , wherein the drainage features comprise a drainage port.
6. The charging station enclosure of claim 3 , wherein the enclosure comprises a front plate fastened to the casing, and wherein the drainage features comprise a space between the wall supports and the front plate.
7. The charging station enclosure of claim 6 , wherein the casing further comprises drainage openings.
8. The charging station enclosure of claim 7 , wherein the drainage features comprise a drainage port.
9. The charging station enclosure of claim 8 , wherein an outer wall of the double wall comprises the drainage openings.
10. The charging station enclosure of claim 2 , wherein at least some of the wall supports comprise fastener receivers.
11. The charging station enclosure of claim 10 , wherein the double wall comprises an inner wall and an outer wall, and wherein the enclosure comprises a front plate fastened to the casing, and further comprises a gasket creating a seal between the front plate and the inner wall.
12. The charging station enclosure of claim 10 , wherein M the wall supports with fastener receivers comprise drainage ports.
13. The charging station enclosure of claim 1 , further comprising thermal insulation in the space between the double walls.
14. A charging station enclosure comprising a casing for enclosing circuitry therein, the casing comprising:
a) a side wall surrounding the circuitry, wherein at least a portion of the side wall comprises an inner wall and an adjacent outer wall; and
b) a front plate fastened to the casing.
15. The charging station enclosure of claim 15 , further comprises a gasket creating a seal between the front plate and the inner wall.
16. The charging station enclosure of claim 15 , wherein the front plate is fastened to the casing with a water tight seal between the front plate and the inner wall such that water penetrating past an interface between the outer wall and the face plate is directed away from passing beyond the inner wall.
17. The charging station enclosure of claim 16 , further comprising at least one drainage opening so as to allow accumulated water between the inner wall and the outer wall to drain therefrom.
18. The charging station enclosure of claim 17 , wherein the casing further comprises wall supports in a space between the inner wall and the outer wall, and wherein the wall supports comprise drainage features.
19. The charging station enclosure of claim 15 further comprising fastener receivers located between the inner wall and the outer wall.
20. The charging station enclosure of claim 19 , wherein the front plate is fastened to the casing via fasteners such that the fasteners are received by the fasteners receivers.
21. The charging station enclosure of claim 15 , further comprising thermal insulation between the inner wall and the outer wall.
22. A charging station enclosure comprising a casing for enclosing circuitry therein, the casing comprising:
a) a side wall surrounding the circuitry;
b) a rear mounting surface; and
c) a front facing user interface panel having an angle with respect to the rear mounting surface so as to facilitate viewing by a user when viewing from a positioned adjacent to and above the charging station enclosure.
23. The charging station enclosure of claim 22 , wherein the front facing panel has an angle of approximately ten degrees toward the rear mounting surface.
24. The charging station enclosure of claim 23 , wherein the side wall comprises a generally truncated conical configuration.
25. The charging station enclosure of claim 22 , wherein the side wall comprises a generally truncated conical configuration.
26. The charging station enclosure of claim 22 further comprising a connector receptacle for receiving and retaining an energy transfer connector.
27. The charging station enclosure of claim 26 , wherein the connector receptacle is recessed from the front facing user interface panel.
28. The charging station enclosure of claim 27 further comprising a plurality of stiffening plates extending from a rear surface of the casing.
29. A charging station enclosure comprising:
a) a surrounding side wall;
b) a front plate secured to the side wall; and
c) a rear portion comprising:
(1) an opening for receiving a electric utility wiring; and
(2) a plurality of exclusion spacers positioned adjacent to the opening.
30. The charging station enclosure of claim 29 , wherein the plurality of exclusion spacers extend from the rear portion into and interior of the enclosure.
31. The charging station enclosure of claim 29 further comprising a power transfer cable opening in a downward facing portion of the side wall.
32. The charging station enclosure of claim 31 further comprising a connector receptacle recessed from the front plate for receiving and retaining an energy transfer connector of a power transfer cable.
33. The charging station enclosure of claim 29 further comprising a plurality of stiffening plates extending from the rear portion.
34. The charging station enclosure of claim 33 , wherein the plurality of stiffening plates further extend from a bottom portion of the enclosure.
Priority Applications (1)
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US13/607,664 US20130175083A1 (en) | 2010-03-08 | 2012-09-08 | Double walled electric vehicle charging station enclosure |
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US32578710P | 2010-04-19 | 2010-04-19 | |
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US201061460413P | 2010-12-29 | 2010-12-29 | |
PCT/US2011/027622 WO2011112638A1 (en) | 2010-03-08 | 2011-03-08 | Double walled electric vehicle charging station enclosure |
PCT/US2011/027620 WO2011112636A1 (en) | 2010-03-08 | 2011-03-08 | Electric vehicle charging station with cable retaining enclosure |
PCT/US2011/027621 WO2011112637A1 (en) | 2010-03-08 | 2011-03-08 | Electric vehicle charging station enclosure and mounting apparatus |
PCT/US2011/000433 WO2011112247A1 (en) | 2010-03-08 | 2011-03-08 | Break-away cable connector |
US13/607,664 US20130175083A1 (en) | 2010-03-08 | 2012-09-08 | Double walled electric vehicle charging station enclosure |
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US13/607,664 Abandoned US20130175083A1 (en) | 2010-03-08 | 2012-09-08 | Double walled electric vehicle charging station enclosure |
US15/635,972 Active US10211658B2 (en) | 2010-03-08 | 2017-06-28 | Electric vehicle charging station with cable retaining enclosure |
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Also Published As
Publication number | Publication date |
---|---|
US20170302092A1 (en) | 2017-10-19 |
US10211658B2 (en) | 2019-02-19 |
US9705346B2 (en) | 2017-07-11 |
US20130181670A1 (en) | 2013-07-18 |
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