CN202957684U - Permanent magnet synchronous motor - Google Patents
Permanent magnet synchronous motor Download PDFInfo
- Publication number
- CN202957684U CN202957684U CN 201220595264 CN201220595264U CN202957684U CN 202957684 U CN202957684 U CN 202957684U CN 201220595264 CN201220595264 CN 201220595264 CN 201220595264 U CN201220595264 U CN 201220595264U CN 202957684 U CN202957684 U CN 202957684U
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- Prior art keywords
- synchronous motor
- permanent magnet
- rare earth
- rotating shaft
- earth permanent
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- Permanent Magnet Type Synchronous Machine (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The utility model provides a permanent magnet synchronous motor, comprising a casing, a stator and a rotor. High-temperature-resistant heat-radiation paint is packaged in an armature winding of the stator; and the rotor comprises a high-temperature-resistant fiberglass, high temperature glue, samarium-cobalt rare earth permanent magnets, a magnet yoke, a rotating shaft and a bearing, wherein the rotating shaft is connected with the casing via the bearing, the magnet yoke is mounted on the rotating shaft, the magnet yoke is equipped with grooves, the samarium-cobalt rare earth permanent magnets are installed in the grooves and bound and fixed in the grooves via the high temperature glue, and the external of the samarium-cobalt rare earth permanent magnets are wound and bound by the high-temperature-resistant fiberglass. The permanent magnet synchronous motor employs a built-in rotor structure, salient pole rate of the built-in rotor structure is relatively high, and a magnetic resistance torque generated by asymmetry of ac and dc shaft magnetic circuit is utilized to improve the overload capability of the motor; and electromagnetic wires capable of resisting 280 DEG C, the high-temperature-resistant fiberglass and the samarium-cobalt rare earth permanent magnets are employed in the permanent magnet synchronous motor, so that high temperature resistance of the motor is improved, and the motor can reliably work in a rated state for a long time in the 180 DEG C environment.
Description
Technical field
The utility model relates to a kind of permagnetic synchronous motor, particularly relates to the permagnetic synchronous motor of a kind of steering wheel with high temperature resistant high overload, belongs to technical field of motors.
Background technology
Particular job state of steering gear electric-machine, that is: high-temperature work environment in aerospace field; Discontinuous operation system in short-term; Instantaneous large overload; Volume is little, quality is light; High reliability.Common permanent magnet synchronous electric is confidential accomplishes that large torque, motor size just are difficult to reduce; Undersized motor is difficult to again accomplish large torque.
The utility model content
The purpose of this utility model is to overcome the prior art deficiency, and the permagnetic synchronous motor of a kind of high temperature resistant (180 ℃), high overload (reaching 6 times of overloads) is provided.
Technical solution of the present utility model: a kind of permagnetic synchronous motor, comprise casing, stator and rotor, the high temperature resistant heat radiation paint of the inner encapsulation of the armature winding of described stator, described rotor comprises pyroceram silk ribbon, high-temp glue, samarium cobalt rare earth permanent magnet body, yoke, rotating shaft and bearing, rotating shaft is connected with casing by bearing, yoke is arranged in rotating shaft, machined grooves on yoke, the samarium cobalt rare earth permanent magnet body is arranged in groove, and be bonded and fixed in groove by high-temp glue, the samarium cobalt rare earth permanent magnet external body is wound around and ties up with the pyroceram silk ribbon.
Described stator is by hot charging and casing interference fit.
The double-deck short distance winding that described armature winding adopts Y to connect.
Described hot charging temperature is 220 ± 5 ℃.
Described armature winding adopts the electromagnetic wire of 280 ℃ of temperature resistant grades.
The utility model beneficial effect compared with prior art:
(1) the utility model adopts the built-in rotor structure, and built-in rotor structure salient pole rate is relatively high, the reluctance torque produced to utilize the asymmetric of friendship, d-axis magnetic circuit, the overload capacity of raising motor;
(2) the utility model adopts electromagnetic wire, pyroceram silk ribbon, the samarium cobalt rare earth permanent magnet body of 280 ℃ of temperature resistant grades, has improved resistance to elevated temperatures, can under 180 ℃ of environment, be operated in stably in a long term under rated condition;
(3) high temperature resistant heat radiation paint embedding for armature winding of the present utility model, the heat-sinking capability of enhancing armature winding;
(4) the utility model is operated in stably in a long term under rated condition under 180 ℃ of environment, its limited output power can reach 6 times of rated output power, therefore can export high torque under less volume conditions, both met the volume requirement under special operation condition, can meet the output torque demand again, the performance of motor is not fully exerted.
The accompanying drawing explanation
Fig. 1 is the utility model overall structure schematic diagram;
Fig. 2 is the utility model rotor structure schematic diagram.
Embodiment
Below in conjunction with accompanying drawing and instantiation, the utility model is elaborated.
The utility model as shown in Figure 1, comprises casing 1, stator 2 and rotor 3, and stator 2 is by hot charging and casing 1 interference fit, and the heating and temperature control of hot charging front housing 1 is at 220 ± 5 ℃.5 embeddings are painted in the high temperature resistant heat radiation of armature winding 4 use, strengthen the heat-sinking capability of armature winding 4.Rotating shaft 7 is connected with casing 1 by bearing 6, and bearing 6 provides support for rotor 3.
The utility model rotor as shown in Figure 2, adopt the built-in rotor structure, comprise pyroceram silk ribbon 31, high-temp glue, samarium cobalt rare earth permanent magnet body 32, yoke 33, rotating shaft 7 and bearing 6, rotating shaft 7 is connected with casing 1 by bearing 6, yoke 33 is arranged in rotating shaft 7, machined grooves on yoke 33, and samarium cobalt rare earth permanent magnet body 32 is arranged in groove, and be bonded and fixed in groove by high-temp glue, samarium cobalt rare earth permanent magnet body 32 is outside to be wound around and to tie up with pyroceram silk ribbon 31.
The rotor structure of permagnetic synchronous motor is prerequisite and the basis of Electromagnetic Design.Common permagnetic synchronous motor often adopts surperficial convex type rotor structure, and this is simple in structure, is easy to processing.The utility model adopts the built-in rotor structure, and (permanent magnet of built-in rotor is embedded in rotor core, the permanent magnet of surface-type rotor sticks on the rotor core surface), this structure salient pole rate is relatively high, the reluctance torque produced to utilize the asymmetric of friendship, d-axis magnetic circuit, the overload capacity of raising motor.
The rotor permanent magnet size has determined air gap flux density waveform and every utmost point air-gap flux amount of motor, except the every runnability that affects motor, also affects the unloaded magnetic leakage factor of permanent magnet in motor, thereby has also determined the utilance of permanent magnet.Common permagnetic synchronous motor just wishes that motor can export maximum torque, less to the permanent magnet volume constraint, and the utility model requires to export high torque under less volume conditions, and can under hot environment, work reliably and with long-term.Therefore the design of permanent magnet will consider the impact of the factors such as Operating Point of Permanent Magnet, number of pole-pairs, magnetic loading, electromagnetic torque, power density, and selects the samarium cobalt rare earth permanent magnet material that high temperature resistant higher grade.
Armature winding 4 of the present utility model can adopt the armature winding similar to common alternating current machine.Due to the utility model, by permanent magnet excitation, Gas-gap Magnetic Field Resonance Wave is more, makes the harmonic wave in electromotive force also more.Therefore, in order to improve the performance of motor, must in the armature winding design, take certain measure.The double-deck short distance winding that the utility model adopts Y to connect is to avoid in armature winding producing circulation, and weakening electromotive force harmonic wave.Armature winding 4 adopts high temperature resistant magnet wire (280 ℃ of temperature resistant grades), and the armature winding number of turn of motor and wire gauge come COMPREHENSIVE CALCULATING to determine according to the restriction of electromagnetic load, stator slot shape size and the copper factor of motor.
When the utility model is used, motor has high overload ability in short-term, can reliably working under 180 ℃ of hot environments.The utlity model has high efficiency, high power density characteristic, at overload, can produce large power output, under rated condition, can keep high efficiency.The utility model also has the characteristic that running stability is high, dynamic response capability is strong, is applied to steering gear system electric propulsion device, can effectively meet the performance requirement of high temperature extreme environment steering gear electric-machine.
The unspecified part of the utility model is known to the skilled person technology.
Claims (5)
1. a permagnetic synchronous motor, comprise casing (1), stator (2) and rotor (3), it is characterized in that: the high temperature resistant heat radiation paint of the inner encapsulation of the armature winding (4) of described stator (2), described rotor (3) comprises pyroceram silk ribbon (31), high-temp glue, samarium cobalt rare earth permanent magnet body (32), yoke (33), rotating shaft (7) and bearing (6), rotating shaft (7) is connected with casing (1) by bearing (6), yoke (33) is arranged in rotating shaft (7), the upper machined grooves of yoke (33), samarium cobalt rare earth permanent magnet body (32) is arranged in groove, and be bonded and fixed in groove by high-temp glue, samarium cobalt rare earth permanent magnet body (32) is outside to be wound around and to tie up with pyroceram silk ribbon (31).
2. a kind of permagnetic synchronous motor according to claim 1, it is characterized in that: described stator (2) is by hot charging and casing (1) interference fit.
3. a kind of permagnetic synchronous motor according to claim 1, is characterized in that: the double-deck short distance winding that described armature winding (4) adopts Y to connect.
4. a kind of permagnetic synchronous motor according to claim 2, it is characterized in that: described hot charging temperature is 220 ± 5 ℃.
5. a kind of permagnetic synchronous motor according to claim 1, it is characterized in that: described armature winding (4) adopts the electromagnetic wire of 280 ℃ of temperature resistant grades.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220595264 CN202957684U (en) | 2012-11-13 | 2012-11-13 | Permanent magnet synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220595264 CN202957684U (en) | 2012-11-13 | 2012-11-13 | Permanent magnet synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202957684U true CN202957684U (en) | 2013-05-29 |
Family
ID=48463236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220595264 Expired - Lifetime CN202957684U (en) | 2012-11-13 | 2012-11-13 | Permanent magnet synchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202957684U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104218721A (en) * | 2013-09-13 | 2014-12-17 | 黄河科技学院 | High-impact-resistant overload motor |
| CN104682647A (en) * | 2014-08-27 | 2015-06-03 | 北京精密机电控制设备研究所 | Ultrahigh-power servomotor |
| CN105262303A (en) * | 2015-11-25 | 2016-01-20 | 南京埃斯顿自动控制技术有限公司 | Permanent magnetic synchronous direct drive motor for rail transit |
-
2012
- 2012-11-13 CN CN 201220595264 patent/CN202957684U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104218721A (en) * | 2013-09-13 | 2014-12-17 | 黄河科技学院 | High-impact-resistant overload motor |
| CN104682647A (en) * | 2014-08-27 | 2015-06-03 | 北京精密机电控制设备研究所 | Ultrahigh-power servomotor |
| CN105262303A (en) * | 2015-11-25 | 2016-01-20 | 南京埃斯顿自动控制技术有限公司 | Permanent magnetic synchronous direct drive motor for rail transit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130529 |