CN100433504C - Stator core of motor of washing machine - Google Patents
Stator core of motor of washing machine Download PDFInfo
- Publication number
- CN100433504C CN100433504C CNB2004100721641A CN200410072164A CN100433504C CN 100433504 C CN100433504 C CN 100433504C CN B2004100721641 A CNB2004100721641 A CN B2004100721641A CN 200410072164 A CN200410072164 A CN 200410072164A CN 100433504 C CN100433504 C CN 100433504C
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- China
- Prior art keywords
- motor
- iron core
- circular hole
- stator core
- reduced
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- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The present invention discloses a stator iron core of a washing machine motor, which is formed by the method that a plurality of iron core pieces are overlapped together. The central position is provided with a circular hole in which a rotor is inserted, the circumference along the circular hole uniformly forms a plurality of winding slots mutually communicated with the circular hole, each of the iron core pieces is provided with four edges with a structure in a polygonal line shape, and the middle position of each edge is formed by projecting outwards. The stator iron core of a washing machine motor of the present invention is formed by the method that the peripherical edge of the stator iron core is changed from a straight line shape into a polygonal line shape, and the opening width of each of the winding slots is reduced; thus, not only the magnetic flux density and the loss of the stator iron core can be reduced because of the increased size of a yoke so that the efficiency of the motor is improved, but also the stator iron core is punched by using a mutually staggered mode; thereby, the raw materials can be saved. In addition, because the efficiency of the motor is increased, the thickness of the iron core can be reduced by 20 percent when the motor is guaranteed to have the same characteristic so that the manufacture cost can be reduced.
Description
Technical field
The present invention relates to a kind of washing machine, particularly relate to a kind of stator core of motor for washer.
Background technology
Current rubbing action that produces when in general, washing machine is a kind of surface activity effect that utilizes washing agent, impeller or cylinder rotation and impeller or cylinder are removed the household electrical appliance of various spots on the washings to the percussion of washings.The revolving force of impeller or cylinder is provided by the motor that comprises devices such as stator, rotor, coil usually.Fig. 1 is the motor for washer stator core construction schematic diagram of prior art.As shown in Figure 1, the motor for washer stator core of this prior art is stacked by a plurality of laminations 1 and constitutes; The periphery of lamination 1 is rectangular, and its centre offers a circular hole 2 that can insert rotor, then evenly is formed with a plurality of coil grooves 3 that are interconnected with circular hole 2 along the circumference place of circular hole 2.Usually, the beeline B between the bottom of coil groove 3 to lamination 1 edge is referred to as yoke.As everyone knows, the magnetic flux density of motor stator core mainly concentrates on the yoke, has only 6.66mm owing to have the yoke size of the motor for washer stator core of this structure, so the loss of its magnetic flux density and iron core is all bigger, and efficient is low.In addition, the A/F A of coil groove 3 is bigger, is 2.2mm, will make the leakage field phenomenon more serious like this, and can cause its efficient to reduce.
Summary of the invention
In order to address the above problem, the object of the present invention is to provide and a kind ofly can improve efficiency of motor, reduce the thickness of stator core and the stator core of the motor for washer that can reduce cost.
In order to achieve the above object, the stator core of motor for washer provided by the invention is stacked by a plurality of laminations and constitutes, its centre offers a circular hole that can insert rotor, circumference place along circular hole then evenly is formed with a plurality of coil grooves that are interconnected with circular hole, described lamination has four limits with broken line shape structure, and formation is outwards protruded in the middle part on each limit.
The yoke of described lamination is of a size of 8.7mm.
The A/F of described coil groove is 1.7mm.
The stator core of motor for washer provided by the invention is that the neighboring with stator core changes broken line shape into by linear, and reduced the A/F of coil groove, so not only can reduce the loss of magnetic flux density and stator core because of the size that has increased yoke, thereby efficiency of motor is improved, and when the punching press stator core, also can utilize interlaced mode to carry out, thereby can conservation.In addition, owing to efficiency of motor is improved, thus guaranteeing to make the thickness of iron core reduce 20% when motor has identical characteristics, thereby can reduce production costs.
Description of drawings
Be elaborated below in conjunction with the stator core of the drawings and specific embodiments to motor for washer of the present invention.
Fig. 1 is the motor for washer stator core construction and the stamping position schematic diagram of prior art.
Fig. 2 is motor for washer stator core construction of the present invention and stamping position schematic diagram.
Embodiment
As shown in Figure 2, the stator core of motor for washer provided by the invention is stacked by a plurality of laminations 4 and constitutes, its centre offers a circular hole 5 that can insert rotor, circumference place along circular hole 5 then evenly is formed with a plurality of coil grooves 6 that are interconnected with circular hole 5, described lamination 4 has four limits with broken line shape structure, and formation is outwards protruded in the middle part on each limit.The yoke of described lamination 4 is of a size of 8.7mm, and the A/F of coil groove 6 is 1.7mm.Because only protrude in the middle part on the limit of lamination 4, so not only can increase the size of yoke, thereby can reduce the loss of magnetic flux density and stator core, to improve efficiency of motor, and also can utilize interlaced mode to carry out during punching press lamination 4, can avoid the waste of raw material like this, thereby can reduce cost.In addition, owing to efficiency of motor is improved, thus guaranteeing to make the thickness of iron core reduce 20% when motor has identical characteristics, thereby can reduce production costs.
Claims (1)
1, a kind of stator core of motor for washer, be stacked and constitute by a plurality of laminations (4), its centre offers a circular hole (5) that can insert rotor, circumference place along circular hole (5) then evenly is formed with a plurality of coil grooves (6) that are interconnected with circular hole (5), described lamination (4) has four limits with broken line shape structure, and formation is outwards protruded in the middle part on each limit; It is characterized in that: the yoke of described lamination (4) is of a size of 8.7mm; The A/F of described coil groove (6) is 1.7mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100721641A CN100433504C (en) | 2004-09-27 | 2004-09-27 | Stator core of motor of washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100721641A CN100433504C (en) | 2004-09-27 | 2004-09-27 | Stator core of motor of washing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1756028A CN1756028A (en) | 2006-04-05 |
| CN100433504C true CN100433504C (en) | 2008-11-12 |
Family
ID=36689061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100721641A Expired - Fee Related CN100433504C (en) | 2004-09-27 | 2004-09-27 | Stator core of motor of washing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100433504C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5485926B2 (en) * | 2011-02-25 | 2014-05-07 | 東芝産業機器製造株式会社 | Manufacturing method of stator core |
| JP6163075B2 (en) | 2013-09-27 | 2017-07-12 | 東芝産業機器システム株式会社 | Manufacturing method of stator core |
| CN103532262A (en) * | 2013-10-23 | 2014-01-22 | 临安泰华机械设备有限公司 | Motor punching of refrigeration compressor and discharge blanking technology thereof |
| CN106026447B (en) * | 2016-06-30 | 2019-05-03 | 安徽美芝制冷设备有限公司 | Compressor, variable-frequency motor, the stator punching of motor and its processing method |
| CN106026446B (en) * | 2016-06-30 | 2019-01-18 | 安徽美芝制冷设备有限公司 | Compressor, variable-frequency motor, the stator punching of motor and its processing method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2164611Y (en) * | 1993-07-19 | 1994-05-11 | 李考伦 | Electric motor |
| CN2235168Y (en) * | 1995-03-23 | 1996-09-11 | 杨玉岗 | Switch reluctance motor |
| CN1508945A (en) * | 2002-12-18 | 2004-06-30 | 乐金电子(天津)电器有限公司 | Motor sator and manufacturing method thereof |
-
2004
- 2004-09-27 CN CNB2004100721641A patent/CN100433504C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2164611Y (en) * | 1993-07-19 | 1994-05-11 | 李考伦 | Electric motor |
| CN2235168Y (en) * | 1995-03-23 | 1996-09-11 | 杨玉岗 | Switch reluctance motor |
| CN1508945A (en) * | 2002-12-18 | 2004-06-30 | 乐金电子(天津)电器有限公司 | Motor sator and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1756028A (en) | 2006-04-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081112 Termination date: 20091027 |