CN2888735Y - Brushless DC motor for compressor - Google Patents
Brushless DC motor for compressor Download PDFInfo
- Publication number
- CN2888735Y CN2888735Y CN 200620101871 CN200620101871U CN2888735Y CN 2888735 Y CN2888735 Y CN 2888735Y CN 200620101871 CN200620101871 CN 200620101871 CN 200620101871 U CN200620101871 U CN 200620101871U CN 2888735 Y CN2888735 Y CN 2888735Y
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- motor
- compressor
- brshless
- stator
- utility
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Abstract
The utility model provides a compressor special brushless dc motor, comprising a core, coils and insulated framework; the motor has a quadrupole and the stator plate with the insulated framework have nine grooves respectively; the coils adopt three-phase star type wiring mode and fractional-slot double-layer winding routing mode. The utility model uses new method of winding routing, weakens high harmonics of the torque, reduces shaking noise caused by the above; at the same time saves copper consumption, reduces copper losses, improves product performance-cost ratio and the motor efficiency could reach over 88% .
Description
Technical field
The utility model relates to a kind of motor that is applied to compressor, specifically a kind of compressor brshless DC motor.
Background technology
Freezer compressor adopts monopole asynchronous motor usually, and it is 24/30 or 24/28 that groove cooperates, and stator adopts two-phase concentric type winding, as depicted in figs. 1 and 2.In this structure, traditional handicraft is first coiling 1, adopts board pulling method to embed in the stator slot 2 again, and the stator end line bag 3 that this method is made is bigger.Simultaneously, be to improve electric efficiency, must constantly increase copper factor, so just make the reliability of technology variation, and electric efficiency reaches 83% back and just is difficult to promote again.
Summary of the invention
Technical problem to be solved in the utility model is to propose a kind of high order harmonic component that can weaken torque, reduces vibrating noise, saves the copper cash consumption, improves the compressor brshless DC motor of product price ratio.
For solving the problems of the technologies described above, a kind of compressor of the utility model comprises iron core, coil and insulation framework with its stator of brshless DC motor, described motor is provided with four utmost points, the stator punching of described stator and insulation framework respectively are provided with nine grooves, described coil adopts the star-like mode of connection of three-phase, and fractional-slot two layer winding form is adopted in wiring.
Above-mentioned a kind of compressor brshless DC motor, described each groove comprises tooth portion and notch, and the width of described notch is 3-5mm.
Above-mentioned a kind of compressor brshless DC motor, uniform two breach of the outer edge of each groove on the described insulation framework.
Above-mentioned a kind of compressor brshless DC motor, described winding pitch y=1 realizes the concentrated coiling on stator tooth of double-deck distributed winding.
The utility model by brand-new winding wiring mode, weakens the high order harmonic component to torque owing to adopted above-mentioned technical pattern, reduce the vibrating noise that causes therefrom, save the copper cash consumption simultaneously, reduce copper loss, improve the product price ratio, electric efficiency can reach more than 88%.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the cutaway view of existing monopole asynchronous motor;
Fig. 2 is the winding distribution map of Fig. 1 motor;
Fig. 3 is the stator cutaway view of the utility model brshless DC motor;
Fig. 4 is the structural representation of the stator punching of the utility model motor;
Fig. 5 is the structural representation of the insulation framework of the utility model motor;
Fig. 6 is the winding distribution map of the utility model motor.
Embodiment
As shown in Figure 3, compressor stator pack vinculum circle 1, iron core 4 and the insulation framework 5 of brshless DC motor, motor is provided with four utmost points.As shown in Figure 4, stator punching is the designs of 9 grooves, and each groove comprises tooth portion 6 and notch 7, and the width of notch 7 is 3mm (can change between 3-5mm).As shown in Figure 5, it is 9 holes (groove) designs that insulation framework 5 cooperates stator core 4, at uniform two breach a of the outer edge of each groove and b, is used for the intercoil connection and the lead-out wire of fixation winding.As shown in Figure 6, coil 1 adopts the star-like mode of connection of three-phase, and fractional-slot two layer winding form is adopted in wiring.Design of Windings is every extremely every phase 3/4 groove, adopt winding pitch y=1, groove 1 mid-phase insulation 8, coil 1 is wound on the stator tooth 9 of tape insulation skeleton 5, realized the concentrated coiling of double-deck distributed winding on stator tooth 9, technique for coiling is succinct, has reduced end line bag copper consumption to greatest extent, reduce copper loss, improve the product price ratio.The breadth coefficient of each harmonic is k in the above-mentioned design of present embodiment
D1=0.9598, k
D3=0.6667, k
D5=0.21758, k
A7=-0.1774, a lot of to the high order harmonic component weakening of torque, reduced the vibrating noise that causes therefrom.
Claims (4)
1, a kind of compressor brshless DC motor, its stator comprises iron core, coil and insulation framework, it is characterized in that, described motor is provided with four utmost points, the stator punching of described stator and insulation framework respectively are provided with nine grooves, described coil adopts the star-like mode of connection of three-phase, and fractional-slot two layer winding form is adopted in wiring.
2, a kind of compressor brshless DC motor as claimed in claim 1 is characterized in that, described each groove comprises tooth portion and notch, and the width of described notch is 3-5mm.
3, a kind of compressor brshless DC motor as claimed in claim 1 or 2 is characterized in that, uniform two breach of the outer edge of each groove on the described insulation framework.
4, a kind of compressor brshless DC motor as claimed in claim 1 or 2 is characterized in that described winding pitch y=1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620101871 CN2888735Y (en) | 2006-03-21 | 2006-03-21 | Brushless DC motor for compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620101871 CN2888735Y (en) | 2006-03-21 | 2006-03-21 | Brushless DC motor for compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2888735Y true CN2888735Y (en) | 2007-04-11 |
Family
ID=38047306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620101871 Expired - Lifetime CN2888735Y (en) | 2006-03-21 | 2006-03-21 | Brushless DC motor for compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2888735Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103683576A (en) * | 2012-09-03 | 2014-03-26 | 珠海格力节能环保制冷技术研究中心有限公司 | Insulating framework carrying stator winding and motor stator |
| CN104143870A (en) * | 2013-05-10 | 2014-11-12 | 株式会社东芝 | Armature winding of rotating electrical machines |
-
2006
- 2006-03-21 CN CN 200620101871 patent/CN2888735Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103683576A (en) * | 2012-09-03 | 2014-03-26 | 珠海格力节能环保制冷技术研究中心有限公司 | Insulating framework carrying stator winding and motor stator |
| CN103683576B (en) * | 2012-09-03 | 2016-12-21 | 珠海格力节能环保制冷技术研究中心有限公司 | The insulation framework of carrying stator winding and motor stator |
| CN104143870A (en) * | 2013-05-10 | 2014-11-12 | 株式会社东芝 | Armature winding of rotating electrical machines |
| US9722467B2 (en) | 2013-05-10 | 2017-08-01 | Kabushiki Kaisha Toshiba | Armature windings of rotating electrical machines |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang Grande Machinery Co.,Ltd. Assignor: Jiaxibeila Compressor Co., Ltd. Contract record no.: 2010330001852 Denomination of utility model: Brushless DC motor for compressor Granted publication date: 20070411 License type: Exclusive License Record date: 20100915 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070411 |
|
| EXPY | Termination of patent right or utility model |