CN103161627A - Fuel pump - Google Patents
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- CN103161627A CN103161627A CN2012104478526A CN201210447852A CN103161627A CN 103161627 A CN103161627 A CN 103161627A CN 2012104478526 A CN2012104478526 A CN 2012104478526A CN 201210447852 A CN201210447852 A CN 201210447852A CN 103161627 A CN103161627 A CN 103161627A
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Abstract
The invention provides a fuel pump, which can be used to prevent the electric corrosion of terminals. The fuel pump comprises a housing (32); a first terminal (62) and a second terminal (64), which are disposed on a first plane of the housing (32), which are connected with an external power supply; a motor, which is connected with the first terminal (62) and the second terminal (64), and can rotate with the help of the power supplied by the external power supply through the first terminal and the second terminal. The first terminal (62) and the second terminal (64) are protruded from the first plane at intervals. A part of the first plane between the first terminal (62) and the second terminal (64) is provided with a prevention part (70) formed by liquid drops. The prevention part (70) can be used to prevent the liquid drops contacted with the first terminal and the second terminal.
Description
Technical field
The present invention relates to a kind of petrolift.
Background technique
In petrolift in being disposed at fuel tank, cause the terminal electro erosion by water contained in fuel, deteriorated fuel sometimes.A kind of technology be used to addressing this problem is disclosed in patent documentation 1.In the technology of patent documentation 1, but the connector section of the petrolift that inserts at the power supply source connector is formed with liquid outlet.Descend in the liquid level of fuel tank, when connector section was exposed in air fully, the fuel that enters into connector section was discharged from liquid outlet.Thus, can prevent the terminal electro erosion.
Patent documentation 1: Japanese kokai publication hei 7-91343 communique
In the technology of patent documentation 1, although the fuel that enters into the connector section of petrolift can be discharged to a certain extent from liquid outlet, the fuel that enters into the connector section of petrolift can't be discharged fully.That is, because causing a small amount of fuel, the surface tension of fuel remains in the connector section of petrolift.When fuel remains in the terminal periphery of petrolift, might cause the terminal electro erosion by this residual fuel.
Summary of the invention
The object of the invention is to disclose a kind of petrolift that can further suppress the terminal electro erosion of petrolift.
Petrolift disclosed in this invention is configured in fuel tank, and wherein, this petrolift comprises: housing; The 1st terminal, it is located at the 1st plane of housing, is used for being connected with the 1st wiring that is connected in external power supply; The 2nd terminal, it is located at the 1st plane of housing, is used for being connected with the 2nd wiring that is connected in external power supply; Motor, it is connected in the 1st terminal and the 2nd terminal, by the electric power rotation that comes via the 1st terminal and the 2nd terminal feeding from external power supply.The 1st terminal and the 2nd terminal are outstanding from the 1st plane with the state at spaced interval.And, the 1st plane, be provided with drop form and to prevent parts on the part between the 1st terminal and the 2nd terminal, this drop forms and prevents that parts are used to prevent from forming and the 1st terminal and the two drop that contacts of the 2nd terminal.
In this petrolift, be provided with drop formation and prevent parts on the 1st plane that is provided with highlightedly the 1st terminal and the 2nd terminal.Therefore, can prevent from forming and the 1st terminal and the two drop that contacts of the 2nd terminal, thereby can prevent that electric current from flowing between the 1st terminal and the 2nd terminal via the drop of fuel.As a result, can prevent the 1st terminal and the 2nd terminal electro erosion.
Above-mentioned drop forms and prevents that parts from for example can form following parts: the fuel on the 1st plane, part between the 1st terminal and the 2nd terminal is separated into forms at the drop of the 1st terminals side and be formed on the drop of the 2nd terminals side.Adopt such structure, though fuel remain in the 1st plane, on the part between the 1st terminal and the 2nd terminal, this fuel also can be separated into the drop of the 1st terminals side and the drop of the 2nd terminals side.Therefore, can prevent that electric current from flowing between the 1st terminal and the 2nd terminal, thereby can prevent the 1st terminal and the 2nd terminal electro erosion.
In a mode of execution of above-mentioned petrolift, drop forms and prevents that parts from being the groove that is formed at the 1st plane, and an end of groove arrives the periphery on the 1st plane and opens.Adopt such structure, the fuel on the part between the 1st terminal and the 2nd terminal on the 1st plane can flow in groove and periphery from the 1st plane is discharged to the outside.
In these cases, the end of preferred groove, tilt towards an above-mentioned end.Adopt such structure, can make the fuel in groove be easy to flow towards an above-mentioned end.
Preferably with the direction of the length direction quadrature of above-mentioned groove on, the width of above-mentioned groove is shorter than the width of the part between the 1st terminal and groove in the 1st plane, and shorter than the width of the part between the 2nd terminal and groove in the 1st plane.Adopt such structure, can prevent that the drop of the 1st terminals side from crossing recess and being connected with the drop of the 2nd terminals side.
And the width on preferred above-mentioned groove and direction its length direction quadrature is larger than the degree of depth of groove.Adopt such structure, the drop that can further prevent the 1st terminals side is crossed recess with the drop of the 2nd terminals side and is connected.
In addition, in another mode of execution of above-mentioned petrolift, also can be provided with connector on the end of the 1st end of connecting up and the 2nd wiring, by this connector being inserted in the 1st terminal and the 2nd terminal, the 1st terminal is connected with the 1st wiring, and the 2nd terminal is connected with the 2nd wiring.In this case, also can make this petrolift also comprise stop member, when connector was inserted in the 1st terminal and the 2nd terminal, the bottom surface of this stop member and connector connected, bottom surface by connector is connected to stop member, is formed with the gap between the bottom surface of connector and the 1st plane.Adopt such structure, be formed with suitable gap between the bottom surface of connector and the 1st plane, can suppress between bottom surface and the 1st plane that fuel remains in connector.
Description of drawings
Fig. 1 is the longitudinal section of the 1st embodiment's petrolift.
Fig. 2 is the plan view of top cover.
Fig. 3 means the connector section that is formed on top cover and is inserted into the figure of the cloth wiring connector in this connector section.
Fig. 4 is the IV-IV sectional view of Fig. 2.
Fig. 5 is the partial enlarged drawing that the part with Fig. 4 represents enlargedly.
Fig. 6 is the VI-VI sectional view of Fig. 2.
Fig. 7 means the figure that is inserted with the state of connector in the connector section of top cover.
Fig. 8 is the plan view of embodiment 2 top cover.
Fig. 9 means the figure of the connector section on the top cover that is formed on embodiment 2.
Figure 10 is the X-X sectional view of Fig. 8.
Figure 11 is the partial enlarged drawing that the part with Figure 10 represents enlargedly.
Figure 12 is the XII-XII sectional view of Fig. 8.
Figure 13 is the plan view of embodiment 3 top cover.
Figure 14 is the XIV-XIV sectional view of Figure 13.
Figure 15 is the figure that the part with Figure 14 represents enlargedly.
Figure 16 is the figure of explanation embodiment's 1 variation.
Figure 17 is the figure of another variation of explanation embodiment 1.
Figure 18 is the XVIII-XVIII sectional view of Figure 17.
Figure 19 means in another variation of embodiment 1, be inserted with the figure of the state of connector in the connector section of top cover.
Figure 20 means the figure of the experimental result that the measurement leakage current obtains.
Embodiment
Embodiment 1
Use description of drawings embodiment 1 petrolift.The petrolift of the present embodiment is the petrolift that automobile is used, and it is configured in fuel tank, is used for the motor feed fuels to automobile.As shown in Figure 1, petrolift 10 comprises motor part 12 and pump section 14, and motor part 12 is housed in housing 16 with pump section 14.Motor part 12 has rotor 18.Rotor 18 comprises axle 20, be fixed on laminated iron core 22 on axle 20, be wound on not shown coil on laminated iron core 22, and the commutator 24 that is connected with this overhang.Axle 20 can be bearing on this housing 16 with respect to housing 16 rotatably by bearing 26,28.Inboard at housing 16 is fixed with permanent magnet 30 in the mode of surrounding rotor 18.Be provided with the connector 60(of the section terminal 62,64 that describes in detail later on the top cover 32 on the top that is installed on housing 16), via connector section 60 to motor part 12 supply capabilities.When via brush 34 with commutator 24 during to coil electricity, rotor 18 and axle 20 rotations.
Contain pump section 14 in the bottom of housing 16.Pump section 14 comprises roughly discoideus impeller 36.Be provided with sets of recesses 36a along outer periphery on the upper surface of impeller 36.Be provided with sets of recesses 36b along outer periphery on the lower surface of impeller 36.Be provided with at the center of impeller 36 and make this impeller 36 can't be sticked in the relative rotation with axle 20 through hole of this axle 20, impeller 36 also rotates when axle 20 rotation.
Consisted of with suction side shell 40 by ejection side shell 38 for the pump case of accommodating impeller 36.Be formed with groove 38a in the outer periphery with impeller 36 of ejection side shell 38 relative zones.Groove 38a forms along the sense of rotation of impeller 36 and extends to the roughly C font of downstream from upstream extremity.Be formed with the ejiction opening 50 that arrives the upper surface of ejection side shell 38 from the downstream of groove 38a on ejection side shell 38.Ejiction opening 50 makes the inside of pump case be communicated with outside (inner space of motor part 12).
Be formed with groove 40a in the outer periphery with impeller 36 of suction side shell 40 relative zones.Groove 40a also similarly forms along the sense of rotation of impeller 36 with groove 38a and extends to the roughly C font of downstream from upstream extremity.Be formed with on suction side shell 40 from the suction port 42 of the upstream extremity of the lower surface arrival slot 40a of suction side shell 40.Suction port 42 makes the inside of pump case be communicated with outside (outside of petrolift).And, be formed with steam outlet 41 on suction side shell 40.The steam that steam outlet 41 is used for producing in groove 40a is discharged to outside pump.Utilize sets of recesses 36a, 36b, groove 38a, 40a, be formed with pump stream 44 in the mode of the outer periphery that cover impeller 36.
When impeller 36 during in ejection side pump case 38, the interior rotation of suction side pump case 40, fuel is by from suction port 42 attractions to pump section 14 and be directed in pump stream 44.Fuel after boosting in the process that flows in pump stream 44 is sent motor part 12 sides from ejiction opening 50.The fuel that is sent in motor part 12 passes through motor part 12, and the blowing unit 48 of self-forming on top cover 32 is sent the outside.
Then, with reference to Fig. 2～Fig. 7, the connector section 60 that is formed on top cover 32 is described.As Fig. 2～shown in Figure 7, connector section 60 has the prominent wall 66 on the outstanding upper surface that is arranged on top cover 32.Be inserted with connector 80 in the space that is formed by prominent wall 66 and top cover 32 (that is, upper end be opened and form space).As shown in Figure 3, be formed with slit pore 76 on prominent wall 66.Be formed with protuberance 84 on the connector shell 86 of connector 80.When connector 80 was inserted in connector section 60, the protuberance 84 of connector shell 86 engaged with the slit pore 76 of prominent wall 66.Thus, can prevent that connector 80 from coming off from connector section 60.
Upper surface at the bottom surface 68(top cover 32 of connector section 60) dispose terminal 62,64 on. Terminal 62,64 is from the bottom surface 68 of connector section 60 outstanding (with reference to Fig. 4, Fig. 6 etc.) upward. Terminal 62,64 spaced compartment of terrain configurations.Terminal 62,64 around surrounded by prominent wall 66, and terminal 62,64 upper end are lower than the upper limb of prominent wall 66.Thus, can utilize prominent wall 66 protection terminals 62,64.In addition, on the bottom surface 68 of connector section 60, be formed with recess 78b around terminal 62, be formed with recess 78a around terminal 64.Recess 78b, 78a for prevent be shaped by embedding with terminal 62,64 and top cover 32 when being configured as one burr climb and arrange on terminal 62,64.
As Fig. 3, shown in Figure 7, when connector 80 was inserted in connector section 60, wiring 82b, 82a were connected with terminal 62,64.Thus, terminal 62,64 is connected with not shown external power supply via wiring 82b, 82a.That is, a terminal in terminal 62,64 is connected with the positive pole (+utmost point) of external power supply, and another terminal in terminal 62,64 is connected with the negative pole (utmost point) of external power supply.Thereby, can supply to motor part 12 via terminal 62,64 from the electric power of external power supply.According to the above description can be clear and definite: top cover 32 be examples of " housing " described in claim, the upper surface of bottom surface 68(top cover 32) be equivalent to an example on " the 1st plane " described in claim, terminal 62,64 is equivalent to an example of " the 1st terminal " described in claim, " the 2nd terminal ", and wiring 82a, wiring 82b are equivalent to an example of " the 1st wiring " described in claim, " the 2nd wiring ".
As shown in Figure 2, be formed with groove 70,72a, 72b, 74a, 74b on the bottom surface 68 of connector section 60.Groove 74a, 74b extend along y direction (that is, from the direction of terminal 64 towards terminal 62).Groove 74a extends along the inner peripheral surface of prominent wall 66.Groove 74b is arranged between groove 74a and terminal 62,64.The two ends of groove 74b arrive prominent wall 66.Groove 72a, 72b extend along the inner peripheral surface of the upwardly extending prominent wall 66 in x side.The end of groove 72a, 72b is connected in the end of groove 74a, 74b.Groove 70 is arranged on terminal 62,64 central authorities, and it extends along the x direction.One end of groove 70 is connected in groove 74a, 74b.The other end of groove 70 arrives periphery and open (with reference to Fig. 3, Fig. 6) of the upper surface of top cover 32 by the slit pore 76 of prominent wall 66.In addition, groove 70,72a, 72b, 74a, 74b not be formed on terminal 62,64 around recess 78a, 78b be connected.
As Fig. 4, shown in Figure 5, the width b(of groove 70,72a, 72b with the direction of the length direction quadrature of groove on size) larger than the degree of depth c of groove 70,72a, 72b.Thus, can prevent crossed slot 70,72a, 72b ground formation drop.In addition, though in Fig. 4, Fig. 5 not shown groove 74a, 74b, the width of groove 74a, 74b and the degree of depth also width and the degree of depth with groove 70,72a, 72b are identical.
And the width b of groove 70,72a, 72b, 74a, 74b is less than the width a2 of planar surface portion 68b, the 68c between terminal 62 and terminal 64 of bottom surface 68.At this, planar surface portion 68b is positioned at from recess 78a to groove 70 scope, and planar surface portion 68c is positioned at from recess 78b to groove 70 scope.In addition, the width b of groove 70,72a, 72b, 74a, 74b is less than the width a 3 at the planar surface portion 68a between prominent wall 66 and terminal 64 of bottom surface 68, and less than bottom surface 68 at the width a 1 of the planar surface portion 68d between wall 66 and terminal 62 that dashes forward.Width a 1, the a2 of planar surface portion 68a, 68b, 68c, 68d, a 3 are below 2mm.In addition, can be clear and definite according to Fig. 2: the width in the planar surface portion between groove 74a and groove 74b of bottom surface 68 (length on the x direction), and the width (length on the x direction) of the planar surface portion between groove 74b and recess 78a, 78b of bottom surface 68 less than the width of planar surface portion 68a, 68b, 68c, 68d, below 2mm.
In above-mentioned petrolift 10, when the liquid level of fuel tank descends, when connector section 60 was exposed in air fully, the fuel that enters into connector section 60 was discharged from groove 70,72a, 72b, 74a, 74b.At this, owing to being formed with groove 70,72a, 72b, 74a, 74b on the bottom surface 68 of connector section 60, therefore, the bottom surface 68 of connector section 60 is divided into area less a plurality of planar surface portion 68a, 68b, 68c, 68d by groove 70,72a, 72b, 74a, 74b ...Thus, the fuel on bottom surface 68 can prevent from forming the drop of larger fuel because the drop that surface tension forms is destroyed.As a result, the fuel flow on bottom surface 68 is discharged in fuel tank from the end (ends of slit pore 76 sides) of groove 70 in groove 70,72a, 72b, 74a, 74b.And, be formed with groove 72a, 72b, 74 near the easy residual prominent wall 66 of fuel.Therefore, near the fuel flow prominent wall 66 is discharged to outside connector section 60 by groove 70 in groove 72a, 72b, 74.Thus, fuel is discharged from connector section 60, therefore, can prevent terminal 62,64 electro erosion.
In addition, be formed with groove 70 between terminal 62,64, it cuts apart the bottom surface 68 between terminal 62,64.Thereby, even fuel remains between the terminal 62,64 of connector section 60, can prevent that also this fuel from becoming and terminal 62,64 the two drops that contact.That is the fuel that, remains between the terminal 62,64 of connector section 60 is separated into the drop of terminal 62 sides and the drop of terminal 64 sides by groove 70.Particularly, the width a2 of the planar surface portion 68b between terminal 62,64,68c is below 2mm, and the width b of groove 70 is less than the width a2 of planar surface portion 68b, 68c, and the width b of groove 70 is greater than the degree of depth c of groove 70.Thus, can suitably prevent crossed slot 70 ground formation drops.Therefore, can prevent that electric current from flowing between terminal 62,64 via the drop of fuel, thereby can prevent terminal 62,64 electro erosion.
At this, the petrolift that uses embodiment 1 and petrolift in the past (comparative example) and the experimental example that electric current mobile between terminal is measured are described.In experiment, under the state that is applied with voltage between the terminal of petrolift to the drip fuel of established amount of connector section, the electric current that flows between terminal is measured.As shown in figure 20, in embodiment 1 petrolift, the fuel of the connector section of dripping is promptly discharged from connector section, and the electric current that flows between terminal reduces at short notice.On the other hand, in the petrolift of comparative example, the fuel of the connector section of dripping is not discharged from connector section, and electric current flows between terminal for a long time.Can confirm thus: in embodiment 1 petrolift, fuel is promptly discharged from connector section, can prevent the terminal electro erosion.
Embodiment 2
Utilize accompanying drawing that embodiment 2 petrolift is described.Embodiment 2 petrolift is the petrolift that the change of the part of embodiment 1 petrolift is formed.Thereby, describe at this difference to embodiment 2 petrolift and embodiment's 1 petrolift.In addition, use same reference numerals for the member identical with embodiment 1 petrolift, description is omitted.
As Fig. 8～shown in Figure 12, in embodiment 2 petrolift, the shape that is formed on groove 100a, 100b on the bottom surface 68 of connector section 60,102a, 102b is different from embodiment 1.That is, be formed with the groove 100a, the 100b that extend along the x direction, and 5 groove 102a, 102b extending along the y direction on bottom surface 68.Groove 100a, 100b extend along prominent wall 90.By being formed on fuel discharge outlet 94a, the 94b on prominent wall 90, the one end arrives periphery and open (with reference to Fig. 9, Figure 12) of the upper surface of top cover respectively for groove 100a, 100b.
Article 5, groove 102a, 102b separate the compartment of terrain configuration of approximate equality on the x direction.The end of each groove 102a is connected in groove 100a, extends to y direction (at length saying it is the negative direction of y axle) from groove 100a.Article 5, in groove 102a, a groove 102a that be configured in the end (end of minus side) on the x direction extends along prominent wall 90.Article 5, in groove 102a, base end part that be configured in three groove 102a of the other end (end of positive side) on the x direction is formed between groove 100a and recess 78b, and its tip portion is formed between recess 78b and recess 78a.The base end part of above-mentioned groove 102a and tip portion couple together by recess 78b.On the other hand, the end of groove 102b is connected in groove 100b, extends to y direction (at length saying it is the postive direction of y axle) from groove 100b.Article 5, in groove 102b, a groove 102b that be configured in the end on the x direction extends along prominent wall 90.Article 5, in groove 102b, base end part that be configured in 3 groove 102b of the other end on the x direction is formed between groove 100b and recess 78a, and its tip portion is formed between recess 78a and recess 78b.The base end part of above-mentioned groove 102b and tip portion couple together by recess 78a.
In addition, as shown in figure 11, the interval on the width a4(y direction of the planar surface portion 168 between groove 102a and groove 102b) be below 2mm, and greater than the width b of groove 100a, 100b, 102a, 102b.In addition, similarly to Example 1, each groove 100a, 100b, 102a, 102b have identical size (that is, width b and degree of depth c), the size on the direction of the width b(of groove 100a, 100b, 102a, 102b and the length direction quadrature of groove) larger than the degree of depth c of groove 70,72a, 72b.
In addition, be formed with on prominent wall 90 compare the less card complex hole 92(of opening area with embodiment 1 slit pore 76 with reference to Fig. 9).When connector 80 was inserted in connector section 60, the protuberance 84 of connector shell 86 fastened with the card complex hole 92 of prominent wall 90.Thus, can prevent that connector 80 from coming off from connector section 60.
In embodiment 2 petrolift, when the liquid level of fuel tank descends, when connector section 60 is exposed in air fully, the fuel that enters into connector section 60 is also discharged from groove 100a, 100b, 102a, 102b.Because the bottom surface 68 of connector section 60 is cut apart by groove 100a, 100b, 102a, 102b, therefore, can prevent from forming the drop of larger fuel on bottom surface 68.As a result, the fuel on bottom surface 68 is by groove 100a, 100b, 102a, 102b, suitably is discharged in fuel tank from the end (end of fuel discharge outlet 94a, 94b side) of groove 100a, 100b.And, owing to being formed with groove 100a, 100b, 102a, 102b along prominent wall 90, therefore, can prevent that fuel from remaining near prominent wall 90.Thus, fuel is suitably discharged from connector section 60, can prevent terminal 62,64 electro erosion.
And, be formed with the part of groove 102a, 102b between terminal 62,64.At length say, be formed on around terminal 62 recess 78b be formed on a part that is formed with groove 102a, 102b between terminal 64 recess 78a on every side.As a result, even fuel remains between terminal 62,64, can prevent that also this fuel from becoming and terminal 62,64 the two drops that contact.Therefore, can prevent that electric current from flowing between terminal 62,64 via the drop of fuel, thereby can suitably prevent terminal 62,64 electro erosion.
Embodiment 3
Utilize accompanying drawing that embodiment 3 petrolift is described.Embodiment 3 petrolift is that the change of the part of embodiment 2 petrolift is formed.Thereby, describe at this difference to embodiment 3 petrolift and embodiment's 2 petrolift.In addition, use same reference numerals for the member identical with embodiment 2 petrolift, description is omitted.
As Figure 13～shown in Figure 16, in embodiment 3 petrolift, be formed on groove 110a, 110b, 112 on the bottom surface 68 of connector section 60,114a, 114b, 116 shape is different from embodiment 2.That is, be formed with groove 110a, the 110b, 112, the groove 114a, the 114b that are formed on the bight of prominent wall 90 that extend along prominent wall 90 on bottom surface 68, be formed on two grooves 116 between terminal 62,64.By being formed on the fuel discharge outlet (omitting diagram) on prominent wall 90, the periphery of the upper surface of this end arrival top cover is also open respectively for the end of groove 110a, 110b.
Groove 112 couples together the other end of groove 110a and the other end of groove 110b.Be formed with groove 114a near the joint between groove 112 and groove 110a, groove 112 further couples together by groove 114a with groove 110a.And, being formed with groove 114b near the joint between groove 112 and groove 110b, groove 112 further couples together by groove 114b with groove 110b.
As shown in figure 13, two grooves 116 form near the mode of intersection terminal 62,64 central authorities.As Figure 14, shown in Figure 15, the width of the planar surface portion 178b between the width a5(of the planar surface portion 178a between recess 78a and groove 116 and recess 78b and groove 116) be below 2mm, and greater than groove 110a, 110b, 112,114a, 114b, 116 width b.In addition, in the XIV-XIV cross section in Figure 13, two grooves 116 intersect.Therefore, the width d on the y direction of groove 116 is greater than the width b of groove 116, but less than the width a5 of planar surface portion 178a, 178b.
In embodiment 3 petrolift, also same with embodiment 1, embodiment 2, the bottom surface 68 of connector section 60 is cut apart by groove 110a, 110b, 112,114a, 114b, 116.Therefore, the fuel on bottom surface 68 suitably is discharged in fuel tank by groove 110a, 110b, 112,114a, 114b, 116.And, be formed with groove 110a, 110b, 112 along prominent wall 90, and be formed with groove 114a, 114b in the bight of prominent wall 90.Therefore, can prevent fuel remain in prominent wall 90 near.Thus, fuel is suitably discharged from connector section 60, can prevent terminal 62,64 electro erosion.
In addition, be formed with groove 116 between terminal 62,64, can prevent from forming the drop with terminal 62,64 the two fuel that contact.Therefore, can prevent that electric current from flowing between terminal 62,64 via the drop of fuel, thereby can suitably prevent terminal 62,64 electro erosion.
Below understand in detail concrete example of the present invention, but above concrete example is illustration, and is not used in the restriction protection domain.Comprise in the described technology of claims concrete example illustrated above is carried out various distortion, changes the technology that forms.
For example, the groove on the bottom surface 68 that is formed on connector section 60 is tilted towards its exhaust end.For example, as shown in figure 16, also can form groove 120 is tilted towards exhaust end.Adopt such structure, the fuel that flow in groove 120 suitably can be discharged in fuel tank.In addition, make groove can be applied to each above-mentioned embodiment towards the structure that exhaust end tilts.
And, also can form: when connector 80 is inserted in connector section 60, bottom surface 68 and connector 80(connector shell 86 in connector section 60) between be formed with the gap.For example, as Figure 17～shown in Figure 19, four bights on the bottom surface 68 of prominent wall 66, prominent wall 66 are formed with stop member 122a, 122b, 122c, 122d.In this structure, when connector 80 was inserted in connector section 60, connector shell 86 connected with stop member 122a, 122b, 122c, 122d, was formed with the gap between the bottom surface 68 of connector section 60 and connector 86.Therefore, can further suppress fuel remains between connector section 60 and connector 86.In addition, be formed on more than the bottom surface 68 of connector section 60 and the gap between connector 86 be preferably 0.3mm.Be more than 0.3mm by making the gap, can suitably suppress fuel and remain between the two.In addition, the structure that is formed with stop member on the bottom surface of connector section can be applied to the various embodiments described above.
In addition, in the various embodiments described above, be formed with recess 78b around terminal 62, be formed with recess 78a around terminal 64, but be not limited to such mode.For example, in the situation that not by embedding be shaped with terminal 62,64 and top cover 32 be shaped integratedly and keep terminal 62,64 during terminal 62,64 is pressed into top cover 32, needn't terminal 62,64 around form recess.
The illustrated technology essential factor of this specification or accompanying drawing is used for separately or brings into play technical practicability by various combinations, the described combination of claim when being not limited to apply for.And the illustrated technology of this specification or accompanying drawing is used for reaching a plurality of purposes simultaneously, the practicability on the technology itself that reaches one of them purpose possesses skills.
Description of reference numerals
12, motor part; 14, pump section; 16, housing; 18, rotor; 20, axle; 22, laminated iron core; 24, commutator; 26,28, bearing; 30, permanent magnet; 32, top cover; 34, brush; 36, impeller; 36a, 36b, recess; 38, ejection side shell; 38a, groove; 40, suction side shell; 40a, groove; 42, suction port; 44, pump stream; 48, blowing unit; 50, ejiction opening; 60, connector section; 62,64, terminal; 66, prominent wall; 68, bottom surface; 70,72a, 72,74a, 74b, groove; 76, slit pore; 78a, 78b, recess; 80, connector; 82a, 82b, wiring; 86, connector shell.
Claims (7)
1. petrolift, it is configured in fuel tank, wherein,
This petrolift comprises:
Housing;
The 1st terminal, it is located at the 1st plane of housing, is used for being connected with the 1st wiring that is connected in external power supply;
The 2nd terminal, it is located at the 1st plane of housing, is used for being connected with the 2nd wiring that is connected in external power supply;
Motor, it is connected in the 1st terminal and the 2nd terminal, by the electric power rotation that comes via the 1st terminal and the 2nd terminal feeding from external power supply,
The 1st terminal and the 2nd terminal are outstanding from the 1st plane with the state at spaced interval,
The drop formation that is provided with on the part between the 1st terminal and the 2nd terminal on the 1st plane prevents parts, and this drop forms and prevents that parts are used to prevent from forming and the 1st terminal and the two drop that contacts of the 2nd terminal.
2. petrolift according to claim 1, wherein,
Drop forms and to prevent that parts are used for the fuel on the 1st plane, part between the 1st terminal and the 2nd terminal is separated into and form at the drop of the 1st terminals side and be formed on the drop of the 2nd terminals side.
3. petrolift according to claim 1 and 2, wherein,
Drop forms and prevents that parts from being the groove that is formed at the 1st plane, and an end of groove arrives the periphery on the 1st plane and opens.
4. petrolift according to claim 3, wherein,
The end of groove, tilt towards an above-mentioned end.
5. according to claim 3 or 4 described petrolifts, wherein,
With the direction of the length direction quadrature of groove on, the width of groove is shorter than the width of the part between the 1st terminal and groove on the 1st plane, and shorter than the width of the part between the 2nd terminal and groove on the 1st plane.
6. the described petrolift of any one according to claim 3～5, wherein,
Width on groove and direction its length direction quadrature is larger than the degree of depth of groove.
7. the described petrolift of any one according to claim 1～6, wherein,
Be provided with connector on the end of the 1st end of connecting up and the 2nd wiring, by this connector is inserted in the 1st terminal and the 2nd terminal, the 1st terminal and the 1st wiring be connected, and the 2nd terminal and the 2nd wiring are connected,
This petrolift also has stop member, and when connector was inserted in the 1st terminal and the 2nd terminal, the bottom surface of this stop member and connector connected,
Bottom surface by connector is connected to stop member, is formed with the gap between the bottom surface of connector and the 1st plane.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-274868 | 2011-12-15 | ||
| JP2011274868A JP5753486B2 (en) | 2011-12-15 | 2011-12-15 | Fuel pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103161627A true CN103161627A (en) | 2013-06-19 |
| CN103161627B CN103161627B (en) | 2015-08-19 |
Family
ID=48585069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210447852.6A Expired - Fee Related CN103161627B (en) | 2011-12-15 | 2012-11-09 | Petrolift |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5753486B2 (en) |
| CN (1) | CN103161627B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6549045B2 (en) * | 2016-01-27 | 2019-07-24 | 愛三工業株式会社 | Connector and electric pump with connector |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5520547A (en) * | 1993-09-27 | 1996-05-28 | Nippondenso Co., Ltd. | Corrosion-free electrical connector structure |
| JP2000023332A (en) * | 1998-07-01 | 2000-01-21 | Yazaki Corp | Drain structure of housing block |
| JP2008038649A (en) * | 2006-08-02 | 2008-02-21 | Aisan Ind Co Ltd | Fuel pump |
| CN101349225A (en) * | 2007-07-18 | 2009-01-21 | 爱三工业株式会社 | Fuel supply apparatus |
| CN101503985A (en) * | 2008-02-06 | 2009-08-12 | 爱三工业株式会社 | Pump component |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3168677B2 (en) * | 1992-03-31 | 2001-05-21 | 株式会社デンソー | Fuel pump |
| JP2008064030A (en) * | 2006-09-07 | 2008-03-21 | Denso Corp | Fuel pump |
| JP2012055054A (en) * | 2010-08-31 | 2012-03-15 | Denso Corp | Fuel pump |
-
2011
- 2011-12-15 JP JP2011274868A patent/JP5753486B2/en not_active Expired - Fee Related
-
2012
- 2012-11-09 CN CN201210447852.6A patent/CN103161627B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5520547A (en) * | 1993-09-27 | 1996-05-28 | Nippondenso Co., Ltd. | Corrosion-free electrical connector structure |
| JP2000023332A (en) * | 1998-07-01 | 2000-01-21 | Yazaki Corp | Drain structure of housing block |
| JP2008038649A (en) * | 2006-08-02 | 2008-02-21 | Aisan Ind Co Ltd | Fuel pump |
| CN101349225A (en) * | 2007-07-18 | 2009-01-21 | 爱三工业株式会社 | Fuel supply apparatus |
| CN101503985A (en) * | 2008-02-06 | 2009-08-12 | 爱三工业株式会社 | Pump component |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2013124629A (en) | 2013-06-24 |
| JP5753486B2 (en) | 2015-07-22 |
| CN103161627B (en) | 2015-08-19 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150819 Termination date: 20171109 |