CN201001077Y - AC permanent magnetism synchronous external rotor type torque electric motor - Google Patents
AC permanent magnetism synchronous external rotor type torque electric motor Download PDFInfo
- Publication number
- CN201001077Y CN201001077Y CNU2007200101205U CN200720010120U CN201001077Y CN 201001077 Y CN201001077 Y CN 201001077Y CN U2007200101205 U CNU2007200101205 U CN U2007200101205U CN 200720010120 U CN200720010120 U CN 200720010120U CN 201001077 Y CN201001077 Y CN 201001077Y
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- external rotor
- rotor
- stator
- rotor type
- motor
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- Expired - Fee Related
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- Permanent Magnet Type Synchronous Machine (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The utility model discloses an alternating current permanent magnet synchronous external rotor type moment motor, which comprises an annular stator (3) positioned inside and consisting of a silicon steel sheet and a coil winding set, and a rotor (2) positioned outside the stator (3) and with an inner wall provided with a permanent magnet plastic sheet; and also comprise a braking mechanism (1) positioned outside the rotor (2), and an annular cooling jacket (4) positioned inside the stator (3). Compared with an internal rotor type moment motor, the external rotor type moment motor of the utility model has a higher output torque, and can realize the direct connection of an external rotor and an executive component, decrease the complexity of the braking mechanism, and have the characteristics of high mechanical advantage and steady rotation. Compared with the other motor with same torque, the external rotor type moment motor of the utility model has smaller volume, thus being convenient for using.
Description
Technical field
The utility model relates to a kind of motor, more particularly, relates to a kind of external rotor electric machine.
Background technology
Existing torque motor adopts inner rotor core more, and promptly rotor is interior, stator structure outside.As shown in Figure 2, the torque motor of typical inner rotor core comprises the rotor 3 ' of inside, the motor stator 2 ' of rotor 3 ' outside, and the stator coolant jacket 1 ' that is used for cooling off, being positioned at stator 3 ' outside.
At present, both at home and abroad as enterprise such as Siemens or research institute all at the torque motor of developing inner rotor core.But problem is, the occasion that the torque motor of inner rotor core is applied in direct driving especially is applied on the lathe execution units such as turntable and pendulum milling head, in order to obtain bigger moment of torsion, often need the motor of larger volume, thereby make that the volume of execution unit is bigger.In addition, the braking mechanism complex structure of its internal rotor of internal rotor torque motor, and also brake weight is less.
Summary of the invention
The utility model is at the problems referred to above, a kind of AC permanent-magnet synchronous external rotor torque motor is provided, its purpose is to solve traditional internal rotor torque motor need to be increased motor volume, influence the problem of using than high pulling torque in order to obtain, thereby reaches the purpose of output high pulling torque under identical volume conditions.Solved bigger brake weight, the braking mechanism complicated problems of internal rotor torque motor requirement simultaneously.
In order to address the above problem, the utility model has been constructed a kind of AC permanent-magnet synchronous external rotor torque motor, comprise be positioned at inner annular stator and be positioned at the stator outside, inwall is the rotor of permanent magnet paster; Also comprise the braking mechanism that is positioned at rotor exterior and the shell-cooling annulus of stator interior.
Wherein, motor stator is made of silicon steel sheet and coil windings.The interior ring of coolant jacket is provided with spiral helicine cooling bath.
Pass through technique scheme, the utility model AC permanent-magnet synchronous external rotor torque motor, owing to utilize permanent magnet the magnetic field direct tangential force of permanent magnet is acted on the bigger diameter as external rotor, thereby the inner rotor core torque motor than prior art has higher moment of torsion, and mechanical advantage is higher; Because the diameter of external rotor ring can be placed more permanent magnet more greatly, with regard to magnetic line of force characteristic, more can realize smooth rotation.In addition, external rotor adopts the fluid pressure type braking mechanism, and simple in structure, the clamping action area is big, has bigger brake weight, and clamping is steady, and is little to system and transmission influence.Simultaneously, other motors of relative same torque, the volume of outer rotor torque motor can be littler.Especially at machine industry, the little greater advantage that just has of identical performance volume.In addition, the utility model AC permanent-magnet synchronous external rotor torque motor has saved middle drive disk assembly because external rotor can directly link to each other with execution unit, thereby reaches the effect of zero transmission, under the condition that does not need the high accuracy drive disk assembly, not only reduced cost and more guaranteed transmission accuracy.
Description of drawings
Fig. 1 is the structural representation of the utility model AC permanent-magnet synchronous external rotor torque motor;
Fig. 2 is the structural representation of internal rotor torque motor principle in the prior art.
Wherein, 1, external rotor braking mechanism; 2, the rotor of external-rotor-type force moment motor; 3, the stator of external-rotor-type force moment motor; 4, external-rotor-type force moment motor stator coolant jacket; 5, cooling bath; 1 ', the stator coolant jacket of inner-rotor-type torque motor; 2 ', the stator of inner-rotor-type torque motor; 3 ', the rotor of inner-rotor-type torque motor.
Embodiment
With reference to figure 2 explanation the utility model AC permanent-magnet synchronous external rotor torque motors; wherein; the motor stator cover 3 that comprises silicon steel sheet and coil windings is in stator on the cold cover 4; cold cover 4 is provided with the spiral cooling bath in the stator; be used for effective cooling of motor stator, obtain than high pulling torque so that guarantee.Inwall is the outer shroud that the rotor 2 of permanent magnet paster 6 is placed on stator 3, constitutes outer-rotor structure.In addition, because the rotor of torque motor is positioned at the outside, can designs easily and be used to lock external rotor 2 and be positioned at its outside braking mechanism 1.
The utility model AC permanent-magnet synchronous external rotor torque motor because external rotor 2 is directly linked to each other with execution unit, has saved middle drive disk assembly, thereby reaches the effect of zero transmission.In addition, because contact area increases, under the situation of uniform pressure, can produce bigger frictional force, again because the external diameter of rotor is bigger, formula according to " moment=power * arm of force ", the braking mechanism of under the condition of identical power external rotor being locked can produce bigger braking torque, thereby reaches better skidding effect.
The above; it only is the preferable embodiment of the utility model; but protection range of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; be equal to replacement or change according to the technical solution of the utility model and inventive concept thereof, all should be encompassed within protection scope of the present invention.
Claims (3)
1, a kind of AC permanent-magnet synchronous external rotor torque motor is characterized in that, comprise be positioned at inner annular stator (3) and be positioned at described stator (3) outside, inwall is the rotor (2) of permanent magnet paster (6); Also comprise and be positioned at outside braking mechanism (1) of described rotor (2) and the inner shell-cooling annulus (4) of described stator (3).
2, AC permanent-magnet synchronous external rotor torque motor according to claim 1 is characterized in that, described stator (3) is made of silicon steel sheet and coil windings.
3, AC permanent-magnet synchronous external rotor torque motor according to claim 1 is characterized in that, the interior ring of described coolant jacket (4) is provided with spiral helicine cooling bath (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200101205U CN201001077Y (en) | 2007-01-15 | 2007-01-15 | AC permanent magnetism synchronous external rotor type torque electric motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200101205U CN201001077Y (en) | 2007-01-15 | 2007-01-15 | AC permanent magnetism synchronous external rotor type torque electric motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201001077Y true CN201001077Y (en) | 2008-01-02 |
Family
ID=39015479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200101205U Expired - Fee Related CN201001077Y (en) | 2007-01-15 | 2007-01-15 | AC permanent magnetism synchronous external rotor type torque electric motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201001077Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106329794A (en) * | 2016-08-23 | 2017-01-11 | 深圳市正宇电动汽车技术有限公司 | Radial and transverse magnetic circuit combined hybrid magnetic circuit motor |
| CN108429422A (en) * | 2018-05-03 | 2018-08-21 | 包头天工电机有限公司 | Wheel hub permanent magnet synchronous motor |
-
2007
- 2007-01-15 CN CNU2007200101205U patent/CN201001077Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106329794A (en) * | 2016-08-23 | 2017-01-11 | 深圳市正宇电动汽车技术有限公司 | Radial and transverse magnetic circuit combined hybrid magnetic circuit motor |
| CN108429422A (en) * | 2018-05-03 | 2018-08-21 | 包头天工电机有限公司 | Wheel hub permanent magnet synchronous motor |
| CN108429422B (en) * | 2018-05-03 | 2024-03-22 | 包头天工电机有限公司 | Hub permanent magnet synchronous motor |
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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: 20080102 Termination date: 20140115 |