CN202218079U - Rotor structure of permanent magnet synchronous motor for compressor - Google Patents
Rotor structure of permanent magnet synchronous motor for compressor Download PDFInfo
- Publication number
- CN202218079U CN202218079U CN2011203511015U CN201120351101U CN202218079U CN 202218079 U CN202218079 U CN 202218079U CN 2011203511015 U CN2011203511015 U CN 2011203511015U CN 201120351101 U CN201120351101 U CN 201120351101U CN 202218079 U CN202218079 U CN 202218079U
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- permanent magnet
- rotor
- rotor core
- permanent
- synchronous motor
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Abstract
The utility model provides a rotor structure of a permanent magnet synchronous motor for a compressor, comprising a rotor core which is formed by the means that a plurality of rotor sheets are overlapped with one another, a permanent magnet, a rotor shaft and two non-magnetic conductivity rotor end plates arranged at two ends of the rotor core, wherein the rotor core adopts the structure of a built-in rotor magnetic circuit; and the permanent magnet is arc-shaped and is made of a magnetic steel material. The rotor core is circular and consists of a rotating shaft hole arranged at the center, a permanent magnet groove and a screw nail hole for arranging the permanent magnet, and a plurality of air grooves arranged between the permanent magnet groove and the outer circle of the rotor core. The direction of each air groove is arranged along the direction of a magnetic line of force, at least two air grooves are symmetrically arranged at two sides of the screw nail hole, and the transverse gross width of each air groove is more than or equal to a half of the width of the permanent magnet groove. The air grooves with a certain width are arranged between the magnetic steel and the outer circle of the rotor core, so that the armature reaction can be reduced, the counter potential waveform during loading can be greatly improved, the waveform torque during loading can be reduced, the torque impulse of the motor can be reduced, and the high efficiency, low vibration and low noise of a compression system can be realized.
Description
Technical field
The utility model relates to a kind of synchronous machine, specifically is the rotor structure of a kind of compressor with permanent magnet synchronous motor.
Background technology
The noise of compressor is mainly derived from 2 aspects: the electric rotating machine of machinery itself (pump housing), Driven Compressor.Permanent magnet synchronous motor for adopting rare earth material because of its magnet is rectangular shape mostly, adopts the parallel mode of magnetization, and the magnetic field pulsation is less, and the sine property of winding back emf waveform guarantees easily; But for the permanent magnet synchronous motor that adopts Ferrite Material, for considering the utilance in magnetic field, generally adopt the diametrical magnetization mode, this has increased the pulsation in magnetic field undoubtedly; The effect of armature reaction when adding load running, the current waveform when having had a strong impact on load running, vibrating noise worsens.In the at present existing document, adopt the permanent magnet synchronous motor noise aspect of rare earth material to do a lot of work for improving, but at ferrite type sample prescription face, then less concern.Along with rising steadily of rare earth material price, need further strengthen the optimization work of ferrite style.Therefore, be necessary further improvement.
The utility model content
The purpose of the utility model aim to provide a kind of simple and reasonable, regulate compressor quick, easy to operate, dependable performance and use the permanent-magnet synchronous motor rotor structure, to overcome weak point of the prior art.
A kind of compressor by this purpose design is used the permanent-magnet synchronous motor rotor structure; The non-magnetic conduction rotor end plates that comprises rotor core, permanent magnet, the armature spindle that is overrided to form by the multi-disc rotor punching and place the rotor core two ends is characterized in that rotor core adopts the built-in rotor magnetic structure; Permanent magnet is an arc, and adopts magnetic steel material to constitute.
Said rotor core is circular, by the shaft hole of centering, is used to place the permanent magnet trough of permanent magnet, screw hole, and some air grooves that are arranged between permanent magnet trough and the rotor core cylindrical constitute.
The shape and the permanent magnet of said permanent magnet trough are all arc, and the direction of inner arc is towards the cylindrical place of rotor core, and are symmetricly set in the rotor core.
The direction of said air groove is along the direction setting of the magnetic line of force, and is set to more than two with the bilateral symmetry of screw hole.Air groove is an arc, and its horizontal overall width is half the more than or equal to the permanent magnet trough width.
The outside of said rotor core is provided with concave surface between adjacent permanent magnet trough.
The magnet steel that said manufacturing permanent magnet is used adopts Ferrite Material to constitute, and diametrical magnetization.
This compressor is used the permanent-magnet synchronous motor rotor structure; The air groove that distributes through the rule that between magnet steel and rotor cylindrical, is provided with certain width; Reduced armature reaction, the counter potential waveform when having improved load greatly, the ripple torque when reducing load; Reduce the torque pulsation of motor, realize the high efficiency of compressibility, low vibration, low noise and even running.
Description of drawings
Fig. 1 is the utility model one example structure sketch map.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
Referring to Fig. 1, a kind of compressor is used the permanent-magnet synchronous motor rotor structure, the non-magnetic conduction rotor end plates that comprises rotor core 1, permanent magnet, the armature spindle that is overrided to form by the multi-disc rotor punching and place rotor core 1 two ends; Rotor core 1 adopts the built-in rotor magnetic structure; Be shaped as circle,, be used to place the permanent magnet trough 2 of permanent magnet by the shaft hole 4 of centering; Screw hole 5, and some the air grooves 3 that are arranged between permanent magnet trough 2 and rotor core 1 cylindrical constitute; Permanent magnet is an arc, adopts the Ferrite Material of magnet steel to constitute, and diametrical magnetization.
The shape and the permanent magnet of the permanent magnet trough 2 that is provided with in the rotor core 1 are all arc, and the direction of inner arc is towards the cylindrical place of rotor core 1, and are symmetricly set in the rotor core 1; The direction of air groove 3 is along the direction setting of the magnetic line of force, and is set to more than two with the bilateral symmetry of screw hole 5; This air groove 3 is an arc, and its horizontal overall width is more than or equal to the half the (d1+d2+d3+d3 >=0.5hm) of permanent magnet trough 2 width.The outside of rotor core 1 is provided with concave surface 6 between adjacent permanent magnet trough 2.
Above-mentioned is the preferred version of the utility model, and those of ordinary skills all drop within the protection range of the utility model its simple modification or transformation.
Claims (7)
1. a compressor is used the permanent-magnet synchronous motor rotor structure; Comprise rotor core (1), permanent magnet, armature spindle that is overrided to form by the multi-disc rotor punching and the non-magnetic conduction rotor end plates that places rotor core (1) two ends, it is characterized in that rotor core (1) adopts the built-in rotor magnetic structure; Permanent magnet is an arc, and adopts magnetic steel material to constitute.
2. use the permanent-magnet synchronous motor rotor structure according to the said compressor of claim 1; It is characterized in that said rotor core (1) for circular, by the shaft hole (4) of centering, the permanent magnet trough (2) that is used to place permanent magnet, screw hole (5) and be arranged at permanent magnet trough (2) with rotor core (1) cylindrical between some air grooves (3) formation.
3. use the permanent-magnet synchronous motor rotor structure according to the said compressor of claim 2; The shape and the permanent magnet that it is characterized in that said permanent magnet trough (2) are all arc; The direction of inner arc is towards the cylindrical place of rotor core (1), and is symmetricly set in the rotor core (1).
4. use the permanent-magnet synchronous motor rotor structure according to claim 2 or 3 said compressors, it is characterized in that of the direction setting of the direction of said air groove (3), and be set to more than two with the bilateral symmetry of screw hole (5) along the magnetic line of force.
5. use the permanent-magnet synchronous motor rotor structure according to the said compressor of claim 4, it is characterized in that said air groove (3) is an arc, its horizontal overall width is half the more than or equal to permanent magnet trough (2) width.
6. use the permanent-magnet synchronous motor rotor structure according to the said compressor of claim 4, it is characterized in that the outside of said rotor core (1) is provided with concave surface (6) between adjacent permanent magnet trough (2).
7. use the permanent-magnet synchronous motor rotor structure according to the said compressor of claim 4, it is characterized in that the magnet steel that said manufacturing permanent magnet is used adopts Ferrite Material to constitute, and diametrical magnetization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203511015U CN202218079U (en) | 2011-09-19 | 2011-09-19 | Rotor structure of permanent magnet synchronous motor for compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203511015U CN202218079U (en) | 2011-09-19 | 2011-09-19 | Rotor structure of permanent magnet synchronous motor for compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202218079U true CN202218079U (en) | 2012-05-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203511015U Expired - Lifetime CN202218079U (en) | 2011-09-19 | 2011-09-19 | Rotor structure of permanent magnet synchronous motor for compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202218079U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014047748A1 (en) * | 2012-09-29 | 2014-04-03 | Emerson Electric Co. | Rotors with segmented magnet configurations and related dynamoelectric machines and compressors |
| CN104600947A (en) * | 2014-11-25 | 2015-05-06 | 珠海格力节能环保制冷技术研究中心有限公司 | Electric motor |
| WO2015165204A1 (en) * | 2014-04-30 | 2015-11-05 | 中山大洋电机股份有限公司 | Motor rotor assembly and motor applying same |
| CN105075079A (en) * | 2013-02-14 | 2015-11-18 | 三菱电机株式会社 | Permanent magnet embedded motor, compressor and freezing air conditioner |
| CN106968952A (en) * | 2016-01-14 | 2017-07-21 | 艾默生环境优化技术(苏州)有限公司 | Rotary machine |
| CN112436627A (en) * | 2019-08-26 | 2021-03-02 | 安徽美芝精密制造有限公司 | Rotor, motor, compressor and refrigeration plant |
| CN113098161A (en) * | 2020-01-08 | 2021-07-09 | 上海海立电器有限公司 | Rotor core, motor and compressor |
-
2011
- 2011-09-19 CN CN2011203511015U patent/CN202218079U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014047748A1 (en) * | 2012-09-29 | 2014-04-03 | Emerson Electric Co. | Rotors with segmented magnet configurations and related dynamoelectric machines and compressors |
| CN104685763A (en) * | 2012-09-29 | 2015-06-03 | 艾默生电气公司 | Rotors with segmented magnet configurations and related dynamoelectric machines and compressors |
| KR20150063121A (en) * | 2012-09-29 | 2015-06-08 | 에머슨 일렉트릭 컴파니 | Rotors with segmented magnet configurations and related dynamoelectric machines and compressors |
| US9906083B2 (en) | 2012-09-29 | 2018-02-27 | Emerson Electric Co. | Rotors with segmented magnet configurations and related dynamoelectric machines and compressors |
| CN105075079A (en) * | 2013-02-14 | 2015-11-18 | 三菱电机株式会社 | Permanent magnet embedded motor, compressor and freezing air conditioner |
| CN105075079B (en) * | 2013-02-14 | 2017-07-21 | 三菱电机株式会社 | Permanent magnet flush type motor, compressor and refrigerating air-conditioning |
| WO2015165204A1 (en) * | 2014-04-30 | 2015-11-05 | 中山大洋电机股份有限公司 | Motor rotor assembly and motor applying same |
| CN104600947A (en) * | 2014-11-25 | 2015-05-06 | 珠海格力节能环保制冷技术研究中心有限公司 | Electric motor |
| CN104600947B (en) * | 2014-11-25 | 2016-03-02 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor |
| CN106968952A (en) * | 2016-01-14 | 2017-07-21 | 艾默生环境优化技术(苏州)有限公司 | Rotary machine |
| CN112436627A (en) * | 2019-08-26 | 2021-03-02 | 安徽美芝精密制造有限公司 | Rotor, motor, compressor and refrigeration plant |
| CN113098161A (en) * | 2020-01-08 | 2021-07-09 | 上海海立电器有限公司 | Rotor core, motor and compressor |
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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 |
Granted publication date: 20120509 |
|
| CX01 | Expiry of patent term |