CN207184298U - Permanent-magnetic synchronous motor rotor with cut-out winding function - Google Patents
Permanent-magnetic synchronous motor rotor with cut-out winding function Download PDFInfo
- Publication number
- CN207184298U CN207184298U CN201721073652.3U CN201721073652U CN207184298U CN 207184298 U CN207184298 U CN 207184298U CN 201721073652 U CN201721073652 U CN 201721073652U CN 207184298 U CN207184298 U CN 207184298U
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- China
- Prior art keywords
- rotor
- winding
- centrifugal switch
- synchronous motor
- permanent
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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
The utility model proposes the permanent-magnetic synchronous motor rotor with cut-out winding function, and for the asynchronous starting of permagnetic synchronous motor, the rotor includes output shaft and the p-m rotor, the asynchronous starting rotor that are subsequently attached at output shaft；The p-m rotor, asynchronous starting rotor, output shaft are coaxially disposed；Multiple startup windings are set in the asynchronous starting rotor；The different centrifugal switch of multiple breaking speeds is provided with the output shaft；The centrifugal switch is connected and made the original state of each winding to be closure conducting with starting winding one-to-one corresponding；When the motor is energized, the rotating excitation field of stator produces induced-current in asynchronous starting rotor windings and drives asynchronous starting rotor to rotate, the centrifugal switch disconnects startup winding one by one with the lifting of output rotating speed, when all startup winding is disconnected by centrifugal switch, p-m rotor enters the state of pulling in matched with stator rotating excitation field；The utility model can provide variable pull-in torque in permagnetic synchronous motor start-up course.
Description
Technical field
Electric motors are the utility model is related to, the permanent-magnetic synchronous motor rotor especially with cut-out winding function.
Background technology
Permasyn morot have energy-conservation the characteristics of, but its startup when pull in it is relatively difficult, it is currently used
Starting mode is included in a manner of asynchronous winding provides startup power, if lifting pull-in torque, is beneficial to opening for magneto
It is dynamic, but the drag torque needed for magneto start-up course is different, how in magneto start-up course, with reasonably into
Originally the drag torque different according to rotating speed offer is started, is a research direction.
The content of the invention
The utility model proposes the permanent-magnetic synchronous motor rotor with cut-out winding function, can start in permagnetic synchronous motor
During variable pull-in torque is provided.
The utility model uses following technical scheme.
Permanent-magnetic synchronous motor rotor with cut-out winding function, for the asynchronous starting of permagnetic synchronous motor, described turn
Attached bag includes output shaft and the p-m rotor, the asynchronous starting rotor that are subsequently attached at output shaft；The p-m rotor, asynchronous starting
Rotor, output shaft are coaxially disposed；Multiple startup windings are set in the asynchronous starting rotor；Multiple disconnections are provided with the output shaft
The different centrifugal switch of rotating speed；The centrifugal switch is connected and made the original state of each winding to be to close with starting winding one-to-one corresponding
Close conducting；When the motor is energized, the rotating excitation field of stator produces induced-current in asynchronous starting rotor windings and driven asynchronous
Start rotor rotation, the centrifugal switch disconnects startup winding one by one with the lifting of output rotating speed, equal when all starting winding
When being disconnected by centrifugal switch, p-m rotor enters the state of pulling in matched with stator rotating excitation field.
The p-m rotor is cylindricality, and permanent magnet is fixed at the sidewall surfaces of cylindricality p-m rotor.
The asynchronous starting rotor is cylindricality, and cylindricality starts is provided with winding overhang at the top surface of rotor, is set at winding overhang
There is winding boss, the winding boss is provided with contact, and the startup winding is connected with contact；The centrifugal switch and contact phase
Coordinate, the conducting state of each winding is changed with output rotating speed and is changed.
The contact is tungsten silver alloy contact.
The startup winding length is the 1/5 ~ 1/4 of stator length, and winding quantity is more than two.
The centrifugal switch is double speed centrifugal switch, including the first centrifugal switch and the second centrifugal switch, when the second centrifugation
When switch reaches the first breaking speed of the second centrifugal switch, the second centrifugal switch promotes the first centrifugal switch to open the first centrifugation
Close and close, when the second centrifugal switch reaches the second breaking speed of the second centrifugal switch, the second centrifugal switch disconnects.
If the minimum startup rotating speed needed for p-m rotor is S；When export rotating speed rise to more than 0.2S from 0 when, first from
The heart switches off；When export rotating speed rise to 0.75S ~ 0.85S sections when, the second centrifugal switch promote the first centrifugal switch with around
Group boss contact closure, when exporting rotating speed and rising to 0.9S ~ 0.95S sections, the second centrifugal switch disconnects.
The utility model is as a result of multiple centrifugal switches, the speed that can be reached according to output shaft in start-up course
Degree, flexibly to disconnect the startup winding for participating in initiating task, output rotating speed is low when magneto just starts, and participates in initiating task
Startup winding quantity it is more so that just start when pull-up torque it is big, motor can smoothly be started, and when magneto start turn
After speed reaches certain value, this product cut-off parts start winding, the rotating speed of asynchronous starting rotor are lifted, so as to make p-m rotor suitable
It is synchronous to enter traction sharply.
The utility model is due to separating p-m rotor and asynchronous starting rotor so that the magnetic force of two rotors will not be mutual
Interference, so as to precisely control the initiating task of motor, is also more convenient for safeguarding；And led when p-m rotor enters into same
After step state, the startup winding in asynchronous starting rotor is all off, and reactive power is no longer produced because of induced field, so as to
Improve the efficiency of motor.
The utility model only just can provide different lead in electric motor starting with a small amount of centrifugal switch according to output rotating speed
Gravitation square, cost is low, easy to implement, and easily designs.
The utility model creatively forms the switch arrays that can be interacted with rotation speed change using multiple centrifugal switches
Row, the second centrifugal switch can adjust the state of the first centrifugal switch according to rotation speed change so that the utility model is opened motor
Kinetic energy imposes finer tractive force strategy.
Brief description of the drawings
With reference to the accompanying drawings and detailed description to the further details of explanation of the utility model：
Accompanying drawing 1 is schematic diagram of the present utility model；
Accompanying drawing 2 is p-m rotor schematic diagram of the present utility model；
Accompanying drawing 3 is the schematic diagram of asynchronous starting rotor of the present utility model；
Accompanying drawing 4 is schematic diagram when whole windings are both turned on；
Accompanying drawing 5 is schematic diagram when whole windings disconnect；
In figure：1- permanent magnets；2- starts winding；3- winding boss；4- p-m rotors；5- asynchronous starting rotors；6- is centrifuged
Switch；7- output shafts.
Embodiment
As Figure 1-3, there is the permanent-magnetic synchronous motor rotor of cut-out winding function, for the asynchronous of permagnetic synchronous motor
Start, the rotor includes output shaft 7 and the p-m rotor 4, the asynchronous starting rotor 5 that are subsequently attached at output shaft 7；It is described forever
Magnet rotor 4, asynchronous starting rotor 5, output shaft 7 are coaxially disposed；Multiple startup windings 2 are set in the asynchronous starting rotor 5；It is described
The different centrifugal switch 6 of multiple breaking speeds is provided with output shaft 7；The centrifugal switch 6 is connected with starting the one-to-one corresponding of winding 2
And the original state of each winding is set to be turned on for closure；When the motor is energized, the rotating excitation field of stator is in asynchronous starting rotor windings
Interior generation induced-current simultaneously drives asynchronous starting rotor to rotate, and the centrifugal switch disconnects opening one by one with the lifting of output rotating speed
Dynamic winding, when all starting windings and being disconnected by centrifugal switch, p-m rotor enter leading of being matched with stator rotating excitation field into
Synchronous regime.
The p-m rotor is cylindricality, and permanent magnet is fixed at the sidewall surfaces of cylindricality p-m rotor.
The asynchronous starting rotor is cylindricality, and cylindricality starts is provided with winding overhang at the top surface of rotor, is set at winding overhang
There is winding boss, the winding boss is provided with contact, and the startup winding is connected with contact；The centrifugal switch and contact phase
Coordinate, the conducting state of each winding is changed with output rotating speed and is changed.
The contact is tungsten silver alloy contact.
The startup winding length is the 1/5 ~ 1/4 of stator length, and winding quantity is more than two.
The centrifugal switch is double speed centrifugal switch, including the first centrifugal switch and the second centrifugal switch, when the second centrifugation
When switch reaches the first breaking speed of the second centrifugal switch, the second centrifugal switch promotes the first centrifugal switch to open the first centrifugation
Close and close, when the second centrifugal switch reaches the second breaking speed of the second centrifugal switch, the second centrifugal switch disconnects.
If the minimum startup rotating speed needed for p-m rotor is S；When export rotating speed rise to more than 0.2S from 0 when, first from
The heart switches off；When export rotating speed rise to 0.75S ~ 0.85S sections when, the second centrifugal switch promote the first centrifugal switch with around
Group boss contact closure, when exporting rotating speed and rising to 0.9S ~ 0.95S sections, the second centrifugal switch disconnects.
Claims (7)
1. the permanent-magnetic synchronous motor rotor with cut-out winding function, for the asynchronous starting of permagnetic synchronous motor, its feature exists
In：The rotor includes output shaft and the p-m rotor, the asynchronous starting rotor that are subsequently attached at output shaft；The permanent magnetism turns
Son, asynchronous starting rotor, output shaft are coaxially disposed；Multiple startup windings are set in the asynchronous starting rotor；At the output shaft
Provided with the different centrifugal switch of multiple breaking speeds；The centrifugal switch, which is corresponded with starting winding, to be connected and makes each winding
Original state turns on for closure；When the motor is energized, the rotating excitation field of stator produces induced electricity in asynchronous starting rotor windings
Flowing and drive asynchronous starting rotor to rotate, the centrifugal switch disconnects startup winding one by one with the lifting of output rotating speed, complete when
When portion's startup winding is disconnected by centrifugal switch, p-m rotor enters the state of pulling in matched with stator rotating excitation field.
2. the permanent-magnetic synchronous motor rotor with cut-out winding function according to claim 1, it is characterised in that：It is described forever
Magnet rotor is cylindricality, and permanent magnet is fixed at the sidewall surfaces of cylindricality p-m rotor.
3. the permanent-magnetic synchronous motor rotor with cut-out winding function according to claim 1, it is characterised in that：It is described different
It is cylindricality that step, which starts rotor, and cylindricality starts is provided with winding overhang at the top surface of rotor, and winding boss is provided with winding overhang, described
Winding boss is provided with contact, and the startup winding is connected with contact；The centrifugal switch is engaged with contact, makes each winding
Conducting state changes and changed with output rotating speed.
4. the permanent-magnetic synchronous motor rotor with cut-out winding function according to claim 3, it is characterised in that：It is described to touch
Point is tungsten silver alloy contact.
5. the permanent-magnetic synchronous motor rotor with cut-out winding function according to claim 3, it is characterised in that：It is described to open
Dynamic winding length is the 1/5 ~ 1/4 of stator length, and winding quantity is more than two.
6. the permanent-magnetic synchronous motor rotor with cut-out winding function according to claim 5, it is characterised in that：It is described from
Heart switch is double speed centrifugal switch, including the first centrifugal switch and the second centrifugal switch, when the second centrifugal switch reach second from
During the first breaking speed of heart switch, the second centrifugal switch promotes the first centrifugal switch to close the first centrifugal switch, when second
When centrifugal switch reaches the second breaking speed of the second centrifugal switch, the second centrifugal switch disconnects.
7. the permanent-magnetic synchronous motor rotor with cut-out winding function according to claim 6, it is characterised in that：If permanent magnetism
Minimum startup rotating speed needed for rotor is S；When output rotating speed rises to more than 0.2S from 0, the first centrifugal switch disconnects；When defeated
When going out rotating speed and rising to 0.75S ~ 0.85S sections, the second centrifugal switch promotes the first centrifugal switch and winding boss contact closure,
When exporting rotating speed and rising to 0.9S ~ 0.95S sections, the second centrifugal switch disconnects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721073652.3U CN207184298U (en) | 2017-08-25 | 2017-08-25 | Permanent-magnetic synchronous motor rotor with cut-out winding function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721073652.3U CN207184298U (en) | 2017-08-25 | 2017-08-25 | Permanent-magnetic synchronous motor rotor with cut-out winding function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207184298U true CN207184298U (en) | 2018-04-03 |
Family
ID=61738871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721073652.3U Expired - Fee Related CN207184298U (en) | 2017-08-25 | 2017-08-25 | Permanent-magnetic synchronous motor rotor with cut-out winding function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207184298U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107302295A (en) * | 2017-08-25 | 2017-10-27 | 亿德机电科技（福建）有限公司 | Permanent-magnetic synchronous motor rotor with cut-out winding function |
-
2017
- 2017-08-25 CN CN201721073652.3U patent/CN207184298U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107302295A (en) * | 2017-08-25 | 2017-10-27 | 亿德机电科技（福建）有限公司 | Permanent-magnetic synchronous motor rotor with cut-out winding function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180403 Termination date: 20210825 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |