CN202712989U - Motor stator core fixing structure - Google Patents
Motor stator core fixing structure Download PDFInfo
- Publication number
- CN202712989U CN202712989U CN 201220374827 CN201220374827U CN202712989U CN 202712989 U CN202712989 U CN 202712989U CN 201220374827 CN201220374827 CN 201220374827 CN 201220374827 U CN201220374827 U CN 201220374827U CN 202712989 U CN202712989 U CN 202712989U
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- CN
- China
- Prior art keywords
- stator core
- motor
- stator
- fixing structure
- stator punching
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model discloses a motor stator core fixing structure. The motor stator core fixing structure comprises stator punching sheets and a stator core formed by mounting and pressing the stator punching sheets. The outer periphery of each stator punching sheet is provided with a welding groove which is used for welding and fixing the stator punching sheet so that the stator punching sheets can form the stator core. Compared with the traditional fixing structure, the newly designed motor stator core fixing structure avoids air gaps caused by a buckle piece and flat steels (or steel plate strips), avoids the influence on the heat radiation of a motor caused by the air gaps, and improves the heat radiation effect of the motor stator core. In addition, compared with the buckle piece structure, the strength of the stator core is obviously increased; compared with a dovetail groove, the V-shaped groove is relatively shallow and cannot cause the excessively high local flux density; the adverse influence caused by the local heating is avoided; and the motor power factor is improved.
Description
Technical field
The utility model relates to a kind of motor stator core fixed structure.
Background technology
The motor stator core fixed structure of traditional design has two kinds.
The first fixed structure as shown in Figure 2.Open the cramp groove at the cylindrical of stator punching 1, place cramp 3 after the iron core dress is pressed in the cramp groove, cramp 3 two ends grow iron core, in the bending of stator core two ends and welding, play the effect of fixed stator iron core after cramp 3 tensioners.
The second fixed structure is as shown in Figure 3: the cylindrical at stator punching 1 is opened dovetail groove, places band steel 4(or steel plate bar after the iron core dress is pressed in dovetail groove), with band steel 4(or steel plate bar) weld with stator core, stator pressing ring, play the effect of fixed stator iron core.
There is following shortcoming in the first fixed structure:
1. between cramp and the iron core, air-gap is all arranged between cramp and the support, affect motor radiating, affect motor and normally move;
2. for medium-and-large-sized motor, the iron core intensity of fastening piece structure is low, and the motor operation is unreliable.
There is following shortcoming in the second fixed structure:
1. between band steel (or steel plate bar) and the iron core air-gap is arranged, affect motor radiating, affect motor and normally move;
The dovetail groove radial depth is often excessively dark, makes local magnetic close too high, and local pyrexia affects electric machine temperature rise and power factor.
Summary of the invention
The utility model purpose is for the existing deficiency of prior art, a kind of motor stator core fixed structure is provided, can improve the heat-sinking capability of motor stator core, improve motor stator core intensity, improve the motor reliability of operation, and avoid local magnetic close too high, the harmful effect of avoiding local pyrexia to cause improves motor power factor.
In order to solve these problems of the prior art, the technical scheme that the utility model provides is:
A kind of motor stator core fixed structure comprises stator punching and is pressed the stator core that forms by stator punching dress, has welding groove at the cylindrical of stator punching, is used for being welded and fixed stator punching and becomes stator core.Described welding groove is V-shaped groove or semi-circular groove.
Than solution of the prior art, the utility model advantage is:
The position that the utility model is opened cramp groove or dovetail groove in the traditional stator punching changes out V-shaped groove or semi-circular groove into, after the stator core dress is pressed, directly carry out saturated welding (not dosing cramp or band steel etc.) at V-shaped groove or semi-circular groove, weld seam exceeds the stator core cylindrical, again the iron core cylindrical is carried out machine work after welding is finished, the fit system of the support inner circle after stator core and the processing is interference fit.
Compare with traditional fixed structure, the air-gap that newly-designed motor stator core fixed structure has avoided cramp, band steel (or steel plate bar) to cause has been avoided the impact of air-gap on motor radiating, and then improves the radiating effect of motor stator core.In addition, compare with fastening piece structure, stator core intensity obviously increases, and compares with dovetail groove, and is then more shallow because of V-shaped groove, can not cause that local magnetic is close too high, and the harmful effect of avoiding local pyrexia to cause improves motor power factor.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described:
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is a kind of fixed structure schematic diagram of traditional motor stator core;
Fig. 3 is the another kind of fixed structure schematic diagram of traditional motor stator core.
Wherein: 1, stator punching; 2, V-type groove; 3, cramp; 4, band steel.
Embodiment
Below in conjunction with specific embodiment such scheme is described further.Should be understood that these embodiment are not limited to limit the scope of the invention for explanation the present invention.The implementation condition that adopts among the embodiment can be done further adjustment according to the condition of concrete producer, and not marked implementation condition is generally the condition in the normal experiment.
Embodiment:
The present embodiment has been described a kind of motor stator core fixed structure, comprises stator punching 1 and presses the stator core that forms by stator punching 1 dress, has welding groove 2 at the cylindrical of stator punching 1, is used for being welded and fixed stator punching 1 and becomes stator core.Described welding groove is V-shaped groove.
Above-mentioned example only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the people who is familiar with technique can understand content of the present invention and according to this enforcement, can not limit protection scope of the present invention with this.All equivalent transformations that Spirit Essence is done according to the present invention or modification all should be encompassed within protection scope of the present invention.
Claims (2)
1. motor stator core fixed structure comprises stator punching and presses the stator core that forms by the stator punching dress, it is characterized in that, has welding groove at the cylindrical of stator punching, is used for being welded and fixed stator punching and becomes stator core.
2. a kind of motor stator core fixed structure according to claim 1 is characterized in that, described welding groove is V-shaped groove or semi-circular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220374827 CN202712989U (en) | 2012-07-31 | 2012-07-31 | Motor stator core fixing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220374827 CN202712989U (en) | 2012-07-31 | 2012-07-31 | Motor stator core fixing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202712989U true CN202712989U (en) | 2013-01-30 |
Family
ID=47593253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220374827 Expired - Lifetime CN202712989U (en) | 2012-07-31 | 2012-07-31 | Motor stator core fixing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202712989U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103560601A (en) * | 2013-11-22 | 2014-02-05 | 永济新时速电机电器有限责任公司 | Stator core welding structure of large-sized motor |
-
2012
- 2012-07-31 CN CN 201220374827 patent/CN202712989U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103560601A (en) * | 2013-11-22 | 2014-02-05 | 永济新时速电机电器有限责任公司 | Stator core welding structure of large-sized motor |
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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: 20130130 |
|
| CX01 | Expiry of patent term |