CN2666025Y - Permanent-magnet brushless DC motor - Google Patents
Permanent-magnet brushless DC motor Download PDFInfo
- Publication number
- CN2666025Y CN2666025Y CNU032080948U CN03208094U CN2666025Y CN 2666025 Y CN2666025 Y CN 2666025Y CN U032080948 U CNU032080948 U CN U032080948U CN 03208094 U CN03208094 U CN 03208094U CN 2666025 Y CN2666025 Y CN 2666025Y
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- China
- Prior art keywords
- motor
- permanent
- electric machine
- magnet brushless
- circuit board
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- 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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Abstract
A permanent brushless direct current motor comprises a motor body and a control circuit board. The motor body comprises a shell body, a motor shaft, magnetic steel, a magnet yoke and an iron core. The shell body comprises a front cover, a back cover and a shell, wherein, the control circuit board is fixedly arranged between the inner walls of the shell, the motor passes through the control circuit board, one end of the motor is connected with the back cover through a bearing, and the other end of the motor is connected with the front cover and extends outside the front cover. The built-in design of a controller facilitates the using of the motor, thereby effectively enhancing the inner volume employing rate of the motor and improving the reliability.
Description
[technical field]
The utility model relates to a kind of motor, relates in particular to a kind of permanent-magnet brushless DC electric machine.
[background technology]
Permanent-magnet brushless DC electric machine is called electronics commutation DC motor again, is the novel electrical micro-machine of the electromechanical integration that combines of electronic technology and conventional motors technology.Permanent-magnet brushless DC electric machine has been cancelled phase changer and brush completely, has the linear mechanical characteristic identical with traditional brush motor again simultaneously, and speed-regulating range width, and staring torque is big, efficient height, control easily.
Permanent-magnet brushless DC electric machine generally includes motor body and controller.As No. the 96234911.9th, Chinese utility model patent, it discloses a kind of permanent magnetic brushless, comprises this machine of motor, position transducer and control device, and wherein control device is arranged at outside this machine of motor.This separate type is provided with installation, use, the reliability to motor, the cost of motor, and the utilance of volume and the miniaturization of equipment are all made troubles.
The built-in brushless electric machine of controller that China's utility model patent discloses for No. 02218756.1 improves with regard to above-mentioned deficiency.The built-in brushless electric machine of this controller is made up of stator, rotor, stator has the support that is fixed on the motor shaft, the side of support is fixed with the control circuit board and the executive circuit plate of control motor steering, rotating speed respectively, with this form compact conformation, volume is little, reaches the electromechanical structure modularization.Yet the built-in brushless electric machine of described controller needs two circuit boards, and secured in parallel is in the side of support, and the mounting hardness of increase is unfavorable for making full use of of motor internal volume.
[utility model content]
Technical problem to be solved in the utility model is at the defective of prior art, to provide a kind of controller built-in permanent-magnet brushless DC electric machine.
For solving the problems of the technologies described above, the utility model is achieved through the following technical solutions: a kind of permanent-magnet brushless DC electric machine, comprise motor body and control circuit board, described motor body comprises housing, motor shaft, magnet steel, yoke and iron core, described housing comprises protecgulum, bonnet and casing, described control circuit board is installed between the casing madial wall, described motor shaft runs through described controller circuit board, the one end joins by bearing and described bonnet, and the other end joins by bearing and described protecgulum and extends outside the described protecgulum.
The utility model permanent-magnet brushless DC electric machine controller is arranged between the casing madial wall, and it is convenient that this internally-arranged type design makes that motor uses, and has effectively improved the utilance of motor internal volume, has strengthened reliability.
[description of drawings]
Fig. 1 is the cutaway view of the utility model permanent-magnet brushless DC electric machine.
[embodiment]
In the present embodiment, the utility model permanent-magnet brushless DC electric machine is the three-phase permanent brshless DC motor.Please refer to shown in Figure 1ly, the utility model permanent-magnet brushless DC electric machine comprises motor body and control circuit board 5, and wherein the motor body comprises housing, motor shaft 1, yoke 2, magnet steel 3 and iron core 4, and housing comprises protecgulum 6, bonnet 7 and casing 8.Protecgulum 6 passes through fixture 67 with bonnet 7, is rivet in the present embodiment, is installed together, and forms receiving spaces jointly with casing 8, accommodates the motor body.
Control circuit board 5 is installed between the madial wall of casing 8, near bonnet 7, which is provided with main control chip and drive circuit, as DSP, control with single-chip microcomputer or fixing control chip etc.Motor shaft 1 passes control circuit board 5, and one end 10 joins by bearing 9 and bonnet 7, and the other end 12 also joins by bearing 9 and protecgulum 6 and extends outside the protecgulum 6.The present embodiment middle (center) bearing can be ball bearing or oiliness bearing.
Iron core 4 is arranged at casing 8 madial walls and is positioned at control circuit board 5 tops.What install between iron core 4 and motor shaft 1 is yoke 2 and magnet steel 3, and wherein yoke 2 is set on the motor shaft 1, and magnet steel 3 is set on the yoke 2.
Claims (6)
1. permanent-magnet brushless DC electric machine, comprise motor body and control circuit board, described motor body comprises housing, motor shaft, magnet steel, yoke and iron core, described housing comprises protecgulum, bonnet and casing, it is characterized in that: described control circuit board is installed between the casing madial wall, described motor shaft runs through described controller circuit board, and the one end joins by bearing and described bonnet, and the other end joins by bearing and described protecgulum and extends outside the described protecgulum.
2. permanent-magnet brushless DC electric machine according to claim 1 is characterized in that: described yoke is set on the described motor shaft.
3. permanent-magnet brushless DC electric machine according to claim 2 is characterized in that: described magnetic steel sleeve is located on the described yoke.
4. permanent-magnet brushless DC electric machine according to claim 1 is characterized in that: described iron core is installed on the casing madial wall.
5. permanent-magnet brushless DC electric machine according to claim 1 is characterized in that: described bearing is oiliness bearing or ball bearing.
6. permanent-magnet brushless DC electric machine according to claim 1 is characterized in that: described permanent-magnet brushless DC electric machine is the three-phase permanent brshless DC motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032080948U CN2666025Y (en) | 2003-09-28 | 2003-09-28 | Permanent-magnet brushless DC motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032080948U CN2666025Y (en) | 2003-09-28 | 2003-09-28 | Permanent-magnet brushless DC motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2666025Y true CN2666025Y (en) | 2004-12-22 |
Family
ID=34324726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU032080948U Expired - Fee Related CN2666025Y (en) | 2003-09-28 | 2003-09-28 | Permanent-magnet brushless DC motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2666025Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1941568B (en) * | 2005-09-22 | 2010-09-08 | 日本电产株式会社 | Brushless DC motor and manufacturing method thereof |
| CN109149872A (en) * | 2017-06-27 | 2019-01-04 | 龙海特尔福汽车电子研究所有限公司 | Brushless motor controller based on EPS system |
-
2003
- 2003-09-28 CN CNU032080948U patent/CN2666025Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1941568B (en) * | 2005-09-22 | 2010-09-08 | 日本电产株式会社 | Brushless DC motor and manufacturing method thereof |
| CN109149872A (en) * | 2017-06-27 | 2019-01-04 | 龙海特尔福汽车电子研究所有限公司 | Brushless motor controller based on EPS system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Chen Yumin Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: Chen Yumin Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20041222 Termination date: 20110928 |