CN102403868A - Permanent-magnet stepping motor - Google Patents
Permanent-magnet stepping motor Download PDFInfo
- Publication number
- CN102403868A CN102403868A CN2011103742404A CN201110374240A CN102403868A CN 102403868 A CN102403868 A CN 102403868A CN 2011103742404 A CN2011103742404 A CN 2011103742404A CN 201110374240 A CN201110374240 A CN 201110374240A CN 102403868 A CN102403868 A CN 102403868A
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- motor
- rotor
- stepping motor
- rotors
- ferrite
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Abstract
This invention relates to a permanent-magnet stepping motor for fields such as air conditioners, monitor equipment, holders, printers, limousines, laminators, intelligent toilets, aviation and the like; the stepping motor disclosed by this invention comprises stators, rotors and a gear case, wherein the outer diameter of a motor is 24mm or 28mm; the rotors are six pairs of polar rotors; a stepping angle is 7.5 degrees; the speed ratio of the gear case is within 1/83-1/87; the rotors are made of ferrite; the stepping motor disclosed by this invention solves a technical problem that a current permanent-magnet stepping motor has a large self-locating torque, thus, a gear in a motor deceleration box is damaged easily when the angle of an air deflector is changed compulsively.
Description
Technical field
The present invention relates to a kind of p-m step motor that is used for fields such as air conditioner, watch-dog, The Cloud Terrace, printer, limousine, gluing machine, intelligent closestool and aviation.
Background technology
P-m step motor is made up of motor stator, rotor and gear box, and after motor was connected drive circuit, the rotor running drove reduction gear box, thus the very high motor torque of output.The p-m step motor in fields such as the transmission of the transmission of the swing of the existing swing that is used for air conditioner wind deflector, monitoring probe, the rotation of The Cloud Terrace, printer paper, the control of limousine air-conditioning air output, gluing machine film, the bath of intelligent closestool and aviation is 8 pairs of utmost points; 5.626 ° of its step angles, speed ratio are 1/64.In order to satisfy high-power product needed, improve the torque of motor, the rotor main material uses neodymium iron boron, improves motor torque with the magnetic property that improves rotor surface.Neodymium iron boron is a rare metal, and its magnetic property is more much better than than ferrite, and simultaneously, its price is also much higher than ferrite.The rotor main material uses neodymium iron boron; The magnetic property of rotor surface improves, and the self-align torque of motor simultaneously also becomes greatly, is assembling at equipment such as air-conditionings, in the use; Operative employee and client often use hand and pull load device; The angle of forcibly changing load device, this enforceable operation very easily causes the gear in the motor reduction gearbox to damage.
Summary of the invention
The technical problem that the present invention will solve is: bigger for overcoming the self-align torque of existing p-m step motor; The technical problem that causes the gear in the motor reduction gearbox to damage during the angle of forcibly changing load device easily; The present invention provides a kind of p-m step motor, and it is through reducing the number of pole-pairs of rotor, and the rotor main material uses the common material ferrite; To reduce the magnetic property of rotor surface, improve motor torque through increasing the gear box speed ratio.The reduction of the magnetic property of rotor surface, corresponding the reducing of self-align torque of motor in the assembling of equipment such as air-conditioning, use, when operative employee and client pull load device, reduces the generation probability of motor reduction gearbox gear breaking.In addition, the reduction of rotor magnetic property, the electromagnetic noise of motor reduces; Product energy consumption is low, more environmental protection.
The technical solution adopted for the present invention to solve the technical problems is: a kind of p-m step motor; Comprise stator, rotor and gear box; The motor external diameter is 24mm or 28mm, and described rotor is 6 pairs of utmost point rotors, 7.5 ° of step angles; The speed ratio of gear box is 1/83～1/87, and rotor material is a ferrite.
For further improving motor output torque, described root diameter is 10～12mm.
Further: described rotor material is ferrite sintered body or injecting ferrite.
The invention has the beneficial effects as follows, p-m step motor of the present invention, it is through reducing the number of pole-pairs of rotor; The rotor main material uses the common material ferrite; To reduce the magnetic property of rotor surface,, increase the gear box speed ratio and improve motor torque through strengthening root diameter.The reduction of the magnetic property of rotor surface, corresponding the reducing of self-align torque of motor in the assembling of equipment such as air-conditioning, use, when operative employee and client pull air conditioner wind-guiding plate even load device, reduces the generation probability of motor reduction gearbox gear breaking.In addition, the reduction of rotor magnetic property, the electromagnetic noise of motor reduces; Product energy consumption is low, more environmental protection.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Fig. 1 is the structural representation of the preferred embodiment of p-m step motor of the present invention;
Fig. 2 is the structural representation of the casing of p-m step motor of the present invention;
Fig. 3 is the structural representation of the top crown of p-m step motor of the present invention;
Fig. 4 is the structural representation of the middle pole plate of p-m step motor of the present invention.
Among the figure: 1. stator, 2. rotor, 3. gear box, 4. casing, 5. top crown, 6. in pole plate.
Embodiment
Combine accompanying drawing that the present invention is done further detailed explanation now.These accompanying drawings are the sketch map of simplification, basic structure of the present invention only is described in a schematic way, so it only show the formation relevant with the present invention.
Shown in Fig. 1～4, the preferred embodiment of p-m step motor of the present invention comprises stator 1, rotor 2 and gear box 3; The motor external diameter is 24mm or 28mm; Rotor 2 is 6 pairs of utmost point rotors, and rotor 2 diameters are 11mm, 7.5 ° of step angles; The speed ratio of gear box 3 is 1/83～1/87, and rotor 2 materials are ferrite sintered body or injecting ferrite.
Claims (3)
1. a p-m step motor comprises stator (1), rotor (2) and gear box (3), and the motor external diameter is 24mm or 28mm; It is characterized in that: described rotor (2) is 6 pairs of utmost point rotors; 7.5 ° of step angles, the speed ratio of gear box (3) is 1/83～1/87, rotor (2) material is a ferrite.
2. p-m step motor as claimed in claim 1 is characterized in that: described rotor (2) diameter is 10～12mm.
3. p-m step motor as claimed in claim 1 is characterized in that: described rotor (2) material is ferrite sintered body or injecting ferrite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103742404A CN102403868A (en) | 2011-11-22 | 2011-11-22 | Permanent-magnet stepping motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103742404A CN102403868A (en) | 2011-11-22 | 2011-11-22 | Permanent-magnet stepping motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102403868A true CN102403868A (en) | 2012-04-04 |
Family
ID=45885763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103742404A Pending CN102403868A (en) | 2011-11-22 | 2011-11-22 | Permanent-magnet stepping motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102403868A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4244099A (en) * | 1979-01-11 | 1981-01-13 | Tri-Tech, Inc. | Method of making an electric rotating machine |
| US4553056A (en) * | 1983-03-30 | 1985-11-12 | Societe Industrielle De Sonceboz S.A. | Configuration and bearing for a motor-driven linear actuator |
| CN1078074A (en) * | 1992-04-22 | 1993-11-03 | 马渊马达株式会社 | Micro motor |
| US5289064A (en) * | 1991-10-18 | 1994-02-22 | Japan Servo Co., Ltd. | Three-phase permanent magnet stepping motor |
| US20060097588A1 (en) * | 2004-11-11 | 2006-05-11 | Denso Corporation | Stepping motor |
-
2011
- 2011-11-22 CN CN2011103742404A patent/CN102403868A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4244099A (en) * | 1979-01-11 | 1981-01-13 | Tri-Tech, Inc. | Method of making an electric rotating machine |
| US4553056A (en) * | 1983-03-30 | 1985-11-12 | Societe Industrielle De Sonceboz S.A. | Configuration and bearing for a motor-driven linear actuator |
| US5289064A (en) * | 1991-10-18 | 1994-02-22 | Japan Servo Co., Ltd. | Three-phase permanent magnet stepping motor |
| CN1078074A (en) * | 1992-04-22 | 1993-11-03 | 马渊马达株式会社 | Micro motor |
| US20060097588A1 (en) * | 2004-11-11 | 2006-05-11 | Denso Corporation | Stepping motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120404 |