CN201038926Y - External rotor motor - Google Patents
External rotor motor Download PDFInfo
- Publication number
- CN201038926Y CN201038926Y CNU2007201081923U CN200720108192U CN201038926Y CN 201038926 Y CN201038926 Y CN 201038926Y CN U2007201081923 U CNU2007201081923 U CN U2007201081923U CN 200720108192 U CN200720108192 U CN 200720108192U CN 201038926 Y CN201038926 Y CN 201038926Y
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- CN
- China
- Prior art keywords
- stator
- circuit board
- winding
- motor
- external rotor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
The utility model discloses an outer rotor motor, the outer rotor motor comprises a stator and a winding which is arranged on the stator, a circuit board which is related with the motor is arranged on the stator, and an insulation thermal insulating pad is arranged between the circuit board and the stator. When the motor works, the emitted heat can not be transferred to the circuit board directly via the stator, but can be effectively insulated by the insulation thermal insulating pad, the circuit board avoids the impact of the high temperature on the prolongation of the service life of the motor; the utility model also realizes the integrated installation process by an insulation ring, improves the production efficiency and enhances the overall performance of the outer rotor motor.
Description
Technical field
The utility model relates to a kind of external rotor electric machine.
Background technology
The heating problem of motor is subjected to scientific and technical personnel's attention all the time, and reduces the caloric value of motor by continuous technological innovation.The motor feels hot still exists, and is restricting the scope of application of motor.External rotor electric machine is that a kind of winding and circuit board for good and all are fixed on the motor on the stator apparatus matrix.The heat that printed circuit board (PCB) sends motor is very responsive because of gathering the high temperature that forms, especially under the condition of high temperature behind the heat transferred circuit board performance sharply descend the serious element permanent damage that causes.Because winding is to be permanently secured on the stator apparatus matrix, if circuit or element on the circuit board of change or repairing control motor are extremely difficult.Under the common situation, take to scrap an external rotor electric machine than the circuit section cost-saving of attempting to repair or safeguard external rotor electric machine.Therefore existing external rotor electric machine is short useful life, the scrappage height.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of external rotor electric machine, can completely cut off motor under the condition of high temperature and distribute the heat that passes to circuit board.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: this kind external rotor electric machine comprises stator and the winding that is arranged on the described stator, described stator is provided with the circuit board relevant with motor, is provided with the insulation heat insulating mattress between described circuit board and the stator.
Further, described winding is provided with the stairstepping recess of corresponding insulation heat insulating mattress.The edge of insulation heat insulating mattress is embedded on the recess, not only makes the space that existence is used to dispel the heat between circuit board and the winding, but also plays a part fixedly winding.
Further, be provided with dead ring between described stator and the winding, the external diameter of described dead ring is identical with winding inner diameter.Make the space that existence is used to dispel the heat between circuit board and the winding, but also play a part fixedly winding.
Further, described dead ring is fixed together with the insulation heat insulating mattress.Be convenient to install, can realize that the integral type of bearing is installed.
After this used the above-mentioned technology of novel employing, the heat that distributes during machine operation can not be directly passed to circuit board by stator, but it is effectively isolated to be insulated heat insulating mattress, and circuit board has avoided the influence of high temperature to prolong motor useful life; Also realize the mounting process of integral type by dead ring, enhanced productivity, also improved the overall performance of external rotor electric machine.
Figure of description
Below in conjunction with the drawings and specific embodiments to further detailed explanation of the utility model.
Fig. 1 is the structural representation of a kind of external rotor electric machine of the utility model.
Embodiment
As shown in Figure 1, external rotor electric machine of the present utility model is provided with stator 1, winding 2, circuit board 3.Circuit board 3 is enclosed within on the stator 1, and is provided with an insulation heat insulating mattress 4 between circuit board 3 and the stator 1, and insulation heat insulating mattress 4 links together with circuit board 3.Circuit board 3 all is installed on the stator 1 by insulation heat insulating mattress 4 during installation, it is isolated to be insulated heat insulating mattress 4 from the heat of winding 2 like this, heat can not pass to circuit board 3 and then make circuit board 3 property retentions stable by stator 1, avoid the influence of high temperature, prolong the useful life of circuit board 3, and then the useful life of having improved external rotor electric machine.Winding 2 is provided with the stairstepping recess 5 of corresponding insulation heat insulating mattress 4, and the edge of insulation heat insulating mattress 4 is embedded on the recess 5, not only makes the space that existence is used to dispel the heat between circuit board 3 and the winding 2, but also plays a part fixedly winding 2.A dead ring 6 has been installed between winding 2 and the stator 1, and the external diameter of dead ring 6 is identical with winding 2 internal diameters, just can be installed in the winding 2.For easy for installation, dead ring 6 links together with insulation heat insulating mattress 4, because the external diameter of dead ring 6 is identical with winding inner diameter, so the diameter of dead ring 6 is littler than the diameter of insulation heat insulating mattress 4.During installation, elder generation by putting bearing 7 well, is enclosed within entire circuit plate 3 on the stator 1 in dead ring 6 then.Compared with bearing is installed originally one by one, the utility model has realized that the mounting process of integral type has not only improved production efficiency, has also improved the overall performance of external rotor electric machine.
Claims (4)
1. external rotor electric machine, comprise stator (1) and be arranged on winding (2) on the described stator (1), described stator (1) is provided with the circuit board relevant with motor (3), it is characterized in that: be provided with insulation heat insulating mattress (4) between described circuit board (3) and the stator (1).
2. according to the described external rotor electric machine of claim 1, it is characterized in that: described winding (2) is provided with the stairstepping recess (5) of corresponding insulation heat insulating mattress (4).
3. according to the described external rotor electric machine of claim 1, it is characterized in that: be provided with dead ring (6) between described stator (1) and the winding (2), the external diameter of described dead ring (6) is identical with winding (2) internal diameter.
4. according to the described external rotor electric machine of claim 3, it is characterized in that: described dead ring (6) is fixed together with insulation heat insulating mattress (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201081923U CN201038926Y (en) | 2007-04-18 | 2007-04-18 | External rotor motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201081923U CN201038926Y (en) | 2007-04-18 | 2007-04-18 | External rotor motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201038926Y true CN201038926Y (en) | 2008-03-19 |
Family
ID=39211450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201081923U Expired - Fee Related CN201038926Y (en) | 2007-04-18 | 2007-04-18 | External rotor motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201038926Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106663987A (en) * | 2014-08-01 | 2017-05-10 | 松下知识产权经营株式会社 | Thermal insulation structure for electronic device, motor provided with thermal insulation structure, and method for forming thermal insulation member for electronic device |
| CN106803698A (en) * | 2015-11-26 | 2017-06-06 | 衡阳市利美电瓶车制造有限责任公司 | A kind of New-type electric machine |
-
2007
- 2007-04-18 CN CNU2007201081923U patent/CN201038926Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106663987A (en) * | 2014-08-01 | 2017-05-10 | 松下知识产权经营株式会社 | Thermal insulation structure for electronic device, motor provided with thermal insulation structure, and method for forming thermal insulation member for electronic device |
| CN106803698A (en) * | 2015-11-26 | 2017-06-06 | 衡阳市利美电瓶车制造有限责任公司 | A kind of New-type electric machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080319 Termination date: 20110418 |