CN201403022Y - Asynchronous starting permanent-magnet synchronous motor free of loaded starting - Google Patents
Asynchronous starting permanent-magnet synchronous motor free of loaded starting Download PDFInfo
- Publication number
- CN201403022Y CN201403022Y CN2009200895849U CN200920089584U CN201403022Y CN 201403022 Y CN201403022 Y CN 201403022Y CN 2009200895849 U CN2009200895849 U CN 2009200895849U CN 200920089584 U CN200920089584 U CN 200920089584U CN 201403022 Y CN201403022 Y CN 201403022Y
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- clutch
- magnet synchronous
- rotor
- synchronous motor
- power output
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Abstract
The utility model discloses an asynchronous starting permanent-magnet synchronous motor free of loaded starting, which comprises a motor rotor and a power outputting shaft. An automatic clutching device is arranged between the motor rotor and the power outputting shaft, the input end of the automatic clutching device is in transmission connection with the motor rotor, and the output end of the automatic clutching device is in transmission connection with the power outputting shaft. The asynchronous starting permanent-magnet synchronous motor free of loaded starting, which is provided by the utility model, has the advantages as follows: on the basis of the motor, an automatic clutch is arranged between the rotor and the output shaft; the structure is simple and the installation is convenient; the automatic clutch utilizes the centrifugal function to conduct automatic clutching and requires no helps from humans; and the automatic combination can be realized when the motor achieves the optimum rotating speed and the largest motor rotating torque, and then the perfect performances of the asynchronous starting permanent-magnet synchronous motor can be performed.
Description
Technical field
The utility model relates to electric motors, particularly a kind of asynchronous starting permanent magnet synchronous motor.
Background technology
Traditional asynchronous starting permanent magnet synchronous motor is in starting process, its epitrochanterian asynchronous starting winding can produce and promote the asynchronous torque that motor rotates, but simultaneously, the magnetic field of the permanent magnet in the rotor produces a dynamic brake torque to rotor, the operating mode of this dynamic brake torque is equivalent to the operating mode of a generator when short circuit operation, it is embodied on the motor rotary shaft, be equivalent to apply a brake torque that action direction is opposite to rotating shaft, consequently cause the motor starting torque to reduce, when motor starting initial stage rotating speed was low, the starting torque of motor descended very fast especially.Especially for the low capacity motor, because the resistance of stator winding is relatively large, thereby the starting torque influence of permanent magnet generator brake torque during to motor starting is bigger, and during low-speed running, its overall average starting torque descends faster behind motor starting.Especially, if when asynchronous starting permanent magnet synchronous motor starts under load-carrying situation since this moment motor starting torque less, the starting meeting of motor is very difficult, almost can't start sometimes.For above-mentioned reasons, make the use of asynchronous starting permanent magnet synchronous motor be subjected to certain limitation, limited the development and the application of asynchronous starting permanent magnet synchronous motor.
The utility model content
The purpose of this utility model is at above-mentioned defective, a kind of asynchronous starting permanent magnet synchronous motor of No Load Start is provided, this motor has when bringing onto load starts, and can start rapidly than a hour disengagement load at motor torque, inserts the characteristics of load when motor torque increases automatically.
The technical solution of the utility model is: a kind of asynchronous starting permanent magnet synchronous motor of No Load Start, comprise rotor and power output shaft, be provided with an automatic clutch device between described rotor and the power output shaft, the input and the rotor of this automatic clutch device are in transmission connection, and its output and power output shaft are in transmission connection.
Described centrifugal clutch is by constituting with the coaxial clutch power input rotor block that is in transmission connection of machine shaft with the coaxial clutch power output rotor body that is in transmission connection of power output shaft.
Described automatic clutch device is a centrifugal clutch.
The power input rotor block of described centrifugal clutch comprises spline housing, rely on mutually on the cover face of this spline housing and encircle at least two identical fan-shaped centrifugal block for clutch use, be respectively equipped with groove radially on the contact-making surface of each centrifugal block for clutch use inboard and spline housing, the groove of corresponding each centrifugal block for clutch use radially is provided with the projection that is slidingly matched with centrifugal block for clutch use on the cover face of described spline housing; The covering of the fan of each centrifugal block for clutch use is provided with concentric arc groove, and each arc groove surrounds the ring-type groove, is equipped with ring spring in the ring-type groove; Also concentric locking collar is equipped with the power output rotor body of the centrifugal clutch that is made of wheel hub in the outer ring of centrifugal block for clutch use, the mating surface of described wheel hub and centrifugal block for clutch use is provided with the clutch gap, described machine shaft is connected with spline housing is coaxial, and described power output shaft is connected with described wheel hub is coaxial.
Described power output shaft and wheel hub are structure as a whole.
On the sector of the outside of described centrifugal block for clutch use, be installed with friction plate.
Adopt said structure, when motor starting, because the rotating speed during the motor starting is lower, centrifugal force is little, the centrifugal block for clutch use of clutch is not worked, make the disconnection that is connected between motor and the load, motor is starting rapidly under no-load condition, along with motor speed raises, the dynamic brake torque of permanent magnet weakens gradually in the motor, when pulling in, this dynamic brake torque just can be ignored in the motor raising speed, this moment motor torque near maximum, motor speed is very high, simultaneously, the centrifugal force of the centrifugal block for clutch use in the clutch strengthens, after overcoming the restraining force of spring, centrifugal block for clutch use rotates with outer wheel hub contact and drive wheel hub, motor begins to insert load, because motor torque is bigger this moment, therefore can drive load starting fully.
The asynchronous starting permanent magnet synchronous motor of No Load Start of the present utility model is to install an automatic clutch additional on the basis of existing motor, and it is simple in structure, and is easy for installation; Used automatic clutch utilizes action of centrifugal force to carry out automatic clutch, need not manual intervention; And each fan-shaped centrifugal block for clutch use of this automatic clutch is identical, and by same spring constraint, so the combination of this clutch is steady, dynamic balance performance is good, can can give full play to the premium properties of asynchronous starting permanent magnet synchronous motor in motor automatic combination during at optimum speed.The utility model has overcome the defective of existing asynchronous starting permanent magnet synchronous motor starting difficulty, has expanded the application of asynchronous starting permanent magnet synchronous motor greatly, and asynchronous starting permanent magnet synchronous motor can be promoted widely.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
As shown in Figure 1, the asynchronous starting permanent magnet synchronous motor of No Load Start of the present utility model comprises electric machine casing 1, the two ends of housing 1 are provided with end cap 4,4 ', also be provided with a dividing plate 11 at housing 1 middle part, be installed with stator 3 at the inwall that is arranged in the cavity that forms between dividing plate 11, housing 1 and the end cap 4 ', be rotatably equipped with rotor 2 between this dividing plate 11 and the end cap 4 ', on end cap 4, be rotatably equipped with power output shaft 6; Between rotor 2 and power output shaft 6, be provided with a centrifugal clutch.
This centrifugal clutch is made of the power input rotor block and the power output rotor body of coaxial setting.Wherein, power input rotor block comprises spline housing 10, rely on mutually on the cover face of this spline housing 10 and encircle at least two identical fan-shaped centrifugal block for clutch use 9, be installed with friction plate 7 on the outside covering of the fan of each centrifugal block for clutch use 9, be respectively equipped with groove radially on the contact-making surface of each centrifugal block for clutch use 9 inboard and spline housing, the groove of corresponding each centrifugal block for clutch use 9 radially is provided with the projection that is slidingly matched with centrifugal block for clutch use on the cover face of described spline housing 10; The covering of the fan of each centrifugal block for clutch use 9 is provided with concentric arc groove, and the outside of arc groove is near being provided with protecting cover, and each arc groove surrounds the ring-type groove, is equipped with ring spring 8 in the ring-type groove; Also concentric locking collar is equipped with the power output rotor body of the centrifugal clutch that is made of wheel hub 5 in the outer ring of centrifugal block for clutch use 9, is provided with the clutch gap between the mating surface of wheel hub 5 and centrifugal block for clutch use 9.During assembling, rotor 2 adopts the coaxial also axial location that is connected of known technology with spline housing 10; Power output shaft 6 rotates on the end cap 4 that is assemblied in motor housing 1 end and wheel hub 5 coaxial being connected, and in the present embodiment, power output shaft 6 is structure as a whole with wheel hub 5, and and end cap 4 between axial location.
The utility model is not limited to the foregoing description; automatic clutch device also can adopt the arrangement of clutch of other structure or form; its arrangement of clutch also can adopt other connected mode, and eccentric gearing is connected with power output shaft with motor rotor; no matter but how its structure changes; so long as between rotor and power output shaft, be provided with respectively the automatic clutch device that is in transmission connection with rotor and power output shaft, all within protection range of the present utility model.
Claims (6)
1, a kind of asynchronous starting permanent magnet synchronous motor of No Load Start, comprise rotor and power output shaft, it is characterized in that, be provided with an automatic clutch device between described rotor and the power output shaft, the input and the rotor of this automatic clutch device are in transmission connection, and its output and power output shaft are in transmission connection.
2, the asynchronous starting permanent magnet synchronous motor of No Load Start according to claim 1, it is characterized in that described automatic clutch device is by constituting with the coaxial clutch power input rotor block that is in transmission connection of rotor with the coaxial clutch power output rotor body that is in transmission connection of power output shaft.
3, the asynchronous starting permanent magnet synchronous motor of No Load Start according to claim 1 and 2 is characterized in that, described automatic clutch device is a centrifugal clutch.
4, the asynchronous starting permanent magnet synchronous motor of No Load Start according to claim 3, it is characterized in that, the power input rotor block of described centrifugal clutch comprises spline housing, rely on mutually on the cover face of this spline housing and encircle at least two identical fan-shaped centrifugal block for clutch use, be respectively equipped with groove radially on the contact-making surface of each centrifugal block for clutch use inboard and spline housing, the groove of corresponding each centrifugal block for clutch use radially is provided with the projection that is slidingly matched with centrifugal block for clutch use on the cover face of described spline housing; The covering of the fan of each centrifugal block for clutch use is provided with concentric arc groove, and each arc groove surrounds the ring-type groove, is equipped with ring spring in the ring-type groove; Also concentric locking collar is equipped with the power output rotor body of the centrifugal clutch that is made of wheel hub in the outer ring of centrifugal block for clutch use, the mating surface of described wheel hub and centrifugal block for clutch use is provided with the clutch gap, described machine shaft is connected with spline housing is coaxial, and described power output shaft is connected with described wheel hub is coaxial.
5, the asynchronous starting permanent magnet synchronous motor of No Load Start according to claim 4 is characterized in that, described power output shaft and wheel hub are structure as a whole.
6, the asynchronous starting permanent magnet synchronous motor of No Load Start according to claim 5 is characterized in that, is installed with friction plate on the sector of the outside of described centrifugal block for clutch use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200895849U CN201403022Y (en) | 2009-04-14 | 2009-04-14 | Asynchronous starting permanent-magnet synchronous motor free of loaded starting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200895849U CN201403022Y (en) | 2009-04-14 | 2009-04-14 | Asynchronous starting permanent-magnet synchronous motor free of loaded starting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201403022Y true CN201403022Y (en) | 2010-02-10 |
Family
ID=41662821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200895849U Expired - Fee Related CN201403022Y (en) | 2009-04-14 | 2009-04-14 | Asynchronous starting permanent-magnet synchronous motor free of loaded starting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201403022Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102195399A (en) * | 2011-03-25 | 2011-09-21 | 许晓华 | Motor brake clutch structure |
-
2009
- 2009-04-14 CN CN2009200895849U patent/CN201403022Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102195399A (en) * | 2011-03-25 | 2011-09-21 | 许晓华 | Motor brake clutch structure |
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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: 20100210 Termination date: 20120414 |