CN203301332U - Permanent magnet synchronous motor used for air conditioning compressor - Google Patents
Permanent magnet synchronous motor used for air conditioning compressor Download PDFInfo
- Publication number
- CN203301332U CN203301332U CN2012207445731U CN201220744573U CN203301332U CN 203301332 U CN203301332 U CN 203301332U CN 2012207445731 U CN2012207445731 U CN 2012207445731U CN 201220744573 U CN201220744573 U CN 201220744573U CN 203301332 U CN203301332 U CN 203301332U
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- Prior art keywords
- synchronous motor
- compressor
- air conditioner
- rotor
- permagnetic synchronous
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Abstract
The utility model discloses a permanent magnet synchronous motor used for an air conditioner compressor. The permanent magnet synchronous motor comprises a rotor and a stator; the rotor is of an embedded magnetic steel structure; a rotor punching sheet is provide with through slots of which the number is the same with the number of the poles of the motor; the through slots are connected with each other through narrow strips; and the inner arcs of the teeth of the rotor punching sheet are provided with symmetrical cutting edges. Compared with the prior art, stator/rotor slot-type design in concentrated winding is adopted, and therefore, sine performance of the waveform of a concentrated winding motor can be improved, and leakage reactance can be decreased, and a higher power factor and higher efficiency can be obtained, and moreover, tooth slot torque can be also reduced, and low-speed load capacity of an air conditioning free from position control can be improved, and the objective of the utility model can be achieved.
Description
Technical field
The utility model relates to a kind of synchronous machine, particularly a kind of compressor of air conditioner permagnetic synchronous motor.
Background technology
The electric air-conditioning compressor electric motor is as the drive motors of air-conditioning, and its operating efficiency and low cruise ability are related to the benefit that social energy conservation reduces discharging.
concentrate the permagnetic synchronous motor of winding configuration, possesses manufacturing process simple, the advantages such as the axial space size is little, but concentrate winding not only to be difficult to obtain good counter potential waveform (form factor is generally lower than 0.9), and coordinate the inscribe permanent magnet rotor can produce larger utmost point leakage reactance, thereby be difficult to obtain good low cruise ability (particularly the low speed position-sensor-free starts ability), the existing rotating speed of winding compressor of air conditioner of concentrating generally can only be in 15% above low speed load running of maximum speed, and be difficult to obtain higher power factor, electromagnetic noise is relatively bigger than normal.
Therefore, need especially a kind of compressor of air conditioner permagnetic synchronous motor, to solve the above-mentioned existing problem that exists.
The utility model content
The purpose of this utility model is to provide a kind of compressor of air conditioner permagnetic synchronous motor, for the deficiencies in the prior art, can keep concentrating under the advantage prerequisite of winding, make motor obtain good counter potential waveform, reduce electromagnetic noise, and effectively reduce utmost point leakage reactance, reduce the low cruise ability of improving motor.
The technical problem that the utility model solves can realize by the following technical solutions:
A kind of compressor of air conditioner permagnetic synchronous motor, it comprises rotor and stator, it is characterized in that, described rotor is embedded magnetic steel structure, is provided with the groove identical with motor pole number on described rotor punching, connects by fillet between described groove; The interior circular arc of the tooth of described stator punching is provided with symmetrical chamfered edge.
In an embodiment of the present utility model, described groove is V-type or a type groove.
In an embodiment of the present utility model, the width of described fillet be described rotor punching thickness 1-2 doubly.
In an embodiment of the present utility model, the arc length of the interior circular arc after chamfered edge is 1/8 to 1/4 of stator punching tooth tooth pitch.
In an embodiment of the present utility model, the notch place rounding of described stator.
In an embodiment of the present utility model, the cylindrical place of described stator punching is provided with a lead-out wire connector mounting groove.
Further, described lead-out wire connector mounting groove is swallowtail shape.
In an embodiment of the present utility model, the cylindrical place of described stator punching is provided with the welding procedure groove of some aligning tooth center lines.
Compressor of air conditioner permagnetic synchronous motor of the present utility model, compared with prior art, adopt the rotor groove design while concentrating winding, can improve and concentrate winding electric machine waveform sine, reduce leakage reactance, thereby obtain high power factor and efficiency, can also reduce cogging torque in addition, low speed load capacity while improving air-conditioning without Position Control, realize the purpose of this utility model.
Characteristics of the present utility model can be consulted the detailed description of the graphic and following better execution mode of this case and be obtained to be well understood to.
Description of drawings
Fig. 1 is the structural representation of compressor of air conditioner of the present utility model with the permagnetic synchronous motor electromagnetism;
Fig. 2 is the enlarged diagram of stator tooth of the present utility model;
Fig. 3 is the enlarged diagram of rotor list magnetic pole of the present utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand,, below in conjunction with concrete diagram, further set forth the utility model.
As shown in Figure 1, compressor of air conditioner permagnetic synchronous motor of the present utility model, it comprises rotor 100 and stator 200, described rotor 100 is embedded magnetic steel structure, be provided with the groove identical with motor pole number 120 on described rotor punching 110, connect (referring to Fig. 3) by fillet 130 between described groove 120; The interior circular arc of the tooth of described stator punching 210 is provided with symmetrical chamfered edge 220(referring to Fig. 2).
In the utility model, described groove 120 is V-type or a type groove; The width of described fillet 130 be described rotor punching 110 thickness 1-2 doubly.
In the utility model, the arc length L of the interior circular arc after chamfered edge is 1/8 to 1/4 of stator punching 210 tooth tooth pitches; The notch place rounding of described stator 200.
In the utility model, the cylindrical place of described stator punching 210 is provided with a lead-out wire connector mounting groove 230; Described lead-out wire connector mounting groove 230 is swallowtail shape.
The cylindrical place of described stator punching 210 is provided with the welding procedure groove 240 of some aligning tooth center lines.
Make after compressor of air conditioner of the present utility model is processed by chamfered edge with the stator punching 210 of permagnetic synchronous motor between electric machine rotor and generate non-homogeneous air gap, during rotor, the excitatory of pole pair stator affected by non-homogeneous air gap, go out to approach sinusoidal wave back-emf at the armature winding internal induction, it is excessively mild between stator tooth that air gap heterogeneous makes the magnetic circuit of permanent magnet generation in addition, make the air gap energy storage of motor circumferencial direction excessive gently, the rotor of even air gap coordinates the cogging torque that can effectively reduce motor relatively, has improved motor low cruise stationarity.
Form larger groove 120 after between the magnetic pole of rotor punching 110, position is gone to expect, make the rotor punching 110 of interpolar be in saturation condition after loading onto magnet steel 140, between the magnetic pole of rotor 100, wide region is saturated, the magnetic linkage that stator 200 is alternate is difficult to directly form magnetic circuit by rotor surface, so operative constraint the alternate interlinked leakage of stator 200, effectively improved the power factor of motor.
Lead-out wire connector holddown groove 230 and 240 designs of technique welding groove, at the midline position of stator 200 teeth, do not affect the degree of saturation of motor magnetic circuit, have relatively saved motor material and bulk.
Compressor of air conditioner permagnetic synchronous motor of the present utility model, can keep concentrating under the advantage prerequisite of winding, make motor obtain good counter potential waveform (form factor is higher than 0.95), reduce electromagnetic noise, and effectively reduce utmost point leakage reactance, reduce the low cruise ability of improving motor (can maximum speed 10% with interior low speed load running).
Above demonstration and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications; these changes and improvements all fall in claimed the utility model scope, and the claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (8)
1. compressor of air conditioner permagnetic synchronous motor, it comprises rotor and stator, it is characterized in that, described rotor is embedded magnetic steel structure, is provided with the groove identical with motor pole number on described rotor punching, connects by fillet between described groove; The interior circular arc of the tooth of described stator punching is provided with symmetrical chamfered edge.
2. compressor of air conditioner permagnetic synchronous motor as claimed in claim 1, is characterized in that, described groove is V-type or a type groove.
3. compressor of air conditioner permagnetic synchronous motor as claimed in claim 1, is characterized in that, the width of described fillet be described rotor punching thickness 1-2 doubly.
4. compressor of air conditioner permagnetic synchronous motor as claimed in claim 1, is characterized in that, the arc length of the interior circular arc after chamfered edge is 1/8 to 1/4 of stator punching tooth tooth pitch.
5. compressor of air conditioner permagnetic synchronous motor as claimed in claim 1, is characterized in that, the notch place rounding of described stator.
6. compressor of air conditioner permagnetic synchronous motor as claimed in claim 1, is characterized in that, the cylindrical place of described stator punching is provided with a lead-out wire connector mounting groove.
7. compressor of air conditioner permagnetic synchronous motor as claimed in claim 6, is characterized in that, described lead-out wire connector mounting groove is swallowtail shape.
8. compressor of air conditioner permagnetic synchronous motor as claimed in claim 1, is characterized in that, the cylindrical place of described stator punching is provided with the welding procedure groove of some aligning tooth center lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207445731U CN203301332U (en) | 2012-12-31 | 2012-12-31 | Permanent magnet synchronous motor used for air conditioning compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207445731U CN203301332U (en) | 2012-12-31 | 2012-12-31 | Permanent magnet synchronous motor used for air conditioning compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203301332U true CN203301332U (en) | 2013-11-20 |
Family
ID=49577315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012207445731U Expired - Fee Related CN203301332U (en) | 2012-12-31 | 2012-12-31 | Permanent magnet synchronous motor used for air conditioning compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203301332U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103078465A (en) * | 2012-12-31 | 2013-05-01 | 浙江迈雷科技有限公司 | Permanent magnet synchronous motor used for air conditioner compressor |
| CN104104168A (en) * | 2014-07-16 | 2014-10-15 | 东南大学 | Stator and rotor structure of built-in permanent magnet brushless direct current motor |
| CN108683275A (en) * | 2018-05-29 | 2018-10-19 | 杭州精导智能科技有限公司 | Direct driving motor |
| USD960086S1 (en) | 2017-07-25 | 2022-08-09 | Milwaukee Electric Tool Corporation | Battery pack |
| US11780061B2 (en) | 2019-02-18 | 2023-10-10 | Milwaukee Electric Tool Corporation | Impact tool |
-
2012
- 2012-12-31 CN CN2012207445731U patent/CN203301332U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103078465A (en) * | 2012-12-31 | 2013-05-01 | 浙江迈雷科技有限公司 | Permanent magnet synchronous motor used for air conditioner compressor |
| CN104104168A (en) * | 2014-07-16 | 2014-10-15 | 东南大学 | Stator and rotor structure of built-in permanent magnet brushless direct current motor |
| CN104104168B (en) * | 2014-07-16 | 2016-08-24 | 东南大学 | A kind of stator rotor structure of built-in permanent-magnet brushless direct current generator |
| USD960086S1 (en) | 2017-07-25 | 2022-08-09 | Milwaukee Electric Tool Corporation | Battery pack |
| US11462794B2 (en) | 2017-07-25 | 2022-10-04 | Milwaukee Electric Tool Corporation | High power battery-powered system |
| US11476527B2 (en) | 2017-07-25 | 2022-10-18 | Milwaukee Electric Tool Corporation | High power battery-powered system |
| USD1035566S1 (en) | 2017-07-25 | 2024-07-16 | Milwaukee Electric Tool Corporation | Battery pack |
| CN108683275A (en) * | 2018-05-29 | 2018-10-19 | 杭州精导智能科技有限公司 | Direct driving motor |
| US11780061B2 (en) | 2019-02-18 | 2023-10-10 | Milwaukee Electric Tool Corporation | Impact tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131120 Termination date: 20161231 |