CN100486078C - Electric machine stator structure - Google Patents
Electric machine stator structure Download PDFInfo
- Publication number
- CN100486078C CN100486078C CNB2004100195311A CN200410019531A CN100486078C CN 100486078 C CN100486078 C CN 100486078C CN B2004100195311 A CNB2004100195311 A CN B2004100195311A CN 200410019531 A CN200410019531 A CN 200410019531A CN 100486078 C CN100486078 C CN 100486078C
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- CN
- China
- Prior art keywords
- fluting
- insulating paper
- stator
- stator core
- bend
- Prior art date
- 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 - Fee Related
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- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
The present invention relates to one kind of motor stator structure. The stator has magnetic core formed with laminated steel sheets, insulating paper set inside the slots in the magnetic core and stator coils wound on the insulating paper inside the slots. The rotatable rotor is inserted in the center of the stator magnetic core. In the stator structure, at least one of the ends of insulating paper inside the slots has bent part of certain angle to disperse the force on the coil. Correspondingly, the steel sheets for the magnetic core have larger slots to form steps to support the bent part, and paint is coated between the bent part of the insulating paper and the step of the magnetic core. The present invention can ensure the insulating performance of the insulating paper and reduce the number of parts to lower the production cost.
Description
Technical field
The present invention relates to a kind of motor stator structure (STATOR STRUCTURE FOR MOTOR); The phenomenon of insulating paper breakage takes place by improving the core structure of forming stator in the present invention when preventing to reel coil, reduce component count simultaneously.
Background technology
Fig. 1 is the fragmentary cross-sectional view of conventional motors stator structure.Fig. 2 is the significant points amplification profile of Fig. 1.
As shown in the figure, motor stator has stator core 11 and stator coil 21.The centre of stator core 11 forms rotor hole 14, and the rotating shaft of rotor can be set by above-below direction.Form many flutings 16 to open center around the rotor hole 14.Stator coil 21 is reeled and is inserted in the fluting 16 of stator core 11.The upside of stator coil 21 is extending end line 24, and the end of end line 24 has the terminal 26 that is used for the external power source connection.End coil portion 22 finalizes the design respectively at the upside of stator core 11 and downside, tied be with 28 the binding.
Each insulating paper 31 of slotting has insulating paper main body 32 and folding part 33a, 33b.32 contacts of insulating paper main body are at the inner face of stator core 11 flutings 16, and its two ends are outwards outstanding from the upper end and the lower end of stator core 11.Folding part 33a, 33b is folded to form upper end and lower end in insulating paper main body 32 by thickness direction, is positioned at the outside of fluting 16.
In addition; between the folding part 33a of stator core 11 upsides and insulating paper main body 32, insert reinforced insulation paper 35; to external force resistance, the state of insulation between protection stator coil 21 and the stator core 11 prevents the decline of withstand voltage properties to reinforced insulation paper 35 in manufacture process.
But there are the following problems to have the conventional motors stator of said structure.During stator coils wound 21, under the influence of stator coil 21, fluting insulating paper 31 active force on the direction that is subjected to hanging down, the folding part 35 at insulating paper 31 two ends that cause slotting is damaged, and reduces insulation property.In order to prevent that the problems referred to above from inserting reinforced insulation paper 35, but therefore cause cost to rise, and flow chart increases, reduce production efficiency.
Summary of the invention
The purpose that the present invention is by having the stator structure of stator core and stator coil, prevents to be caused by stator coil the damage of fluting insulating paper for a kind of motor stator structure is provided, and reduces cost simultaneously.
The motor that the present invention relates to forms stator core by stacking magnetic steel sheet, fluting at stator core is provided with the fluting insulating paper, and the fluting insulating paper on stator coils wound, insert rotatable rotor in the stator core centre, this fluting insulating paper has the insulating paper main body, bend, the folding part, the insulating paper main body is inserted in the inside of stator core fluting and contact with it, at least some positions form and press the bend of certain angle bending in two terminal parts of fluting insulating paper, the active force that disperses coil, and allow the magnetic steel sheet at stator core two ends form bigger fluting, form stage portion with adjacent fluting, support bends portion, application paint between the stage portion of fluting bend of insulating paper and stator core, the end of bend is bent to form the folding part by thickness direction, the folding part is positioned at the outside of fluting, and the bend of fluting insulating paper forms acute angle shape with respect to length direction.
Motor stator structure of the present invention, allow the magnetic steel sheet fluting of two ends of stator core and the fluting of adjacent magnetic steel sheet form stage portion, and the fluting insulating paper two terminal parts be bent to form and the bend of slotting and contacting, paint is filled in support bends portion in the stage portion.Thereby during stator coils wound, the power that allows stator coil act on bend is decomposed, and reduces the active force perpendicular to fluting insulating paper length direction, simultaneously because needn't use reinforced insulation paper, reduces manufacturing cost.
Description of drawings
Fig. 1 is the fragmentary cross-sectional view of conventional motors stator structure.
Fig. 2 is the significant points amplification profile of Fig. 1.
Fig. 3 is motor stator structure one an embodiment profile of the present invention.
Accompanying drawing critical piece remarks
111: stator core 112,112a: the firm sheet of magnetic core
112b: stage portion 116,116a: fluting
131: fluting insulating paper 132: fluting insulating paper main body
133: bend
Embodiment
Below, with reference to accompanying drawing, motor stator structure one embodiment of the present invention is elaborated.In the following explanation, the parts identical with traditional structure adopt identical symbol.
Fig. 3 is motor stator structure one an embodiment profile of the present invention.As shown in the figure, electric machine fixation structure one embodiment of the present invention has stator core 111 and stator coil 121.The centre of stator core 111 forms rotor hole 114, and the rotating shaft (figure slightly) of rotor can be set by above-below direction.Form many flutings 116 to open center around the rotor hole 114.Stator coil 121 is reeled and is inserted in the fluting 116 of stator core 111.The upside of stator coil 121 is extending end line 24, and the end of end line 24 has the terminal 26 that is used for the external power source connection.End coil portion 22 finalizes the design respectively at the upside of stator core 111 and downside, tied be with 28 the binding.
Inserting chock 19 in the opening 17 of fluting 116, preventing that stator coil 21 breaks away from by opening 17.For the insulation between stator coil 121 and the stator core 111, insert number respectively in the inside of each fluting 116 and open slot liner paper 131.
Above-mentioned fluting insulating paper 131 has insulating paper main body 132, bend 133, folding part 133a.Insulating paper main body 132 is inserted in the inside of stator core 111 flutings 116, and contact with it.Bend 133 is that top and bottom form by sharp bend to fluting 116 inside from two ends of insulating paper main body 132.The end of bend 133 is bent to form folding part 133a by thickness direction, and folding part 133a is positioned at the outside of fluting 116.
In addition, in order to keep the superposed state of stator core 111, during application paint (varnish), allow paint be filled among the stage portion 112b.Stage portion 112b is formed between the magnetic steel sheet 112a fluting 166a and bend 133 that overlays two ends of stator core.
As shown in Figure 3, the vertical direction by length direction stacks many magnetic steel sheets 112.At this moment, overlay the magnetic steel sheet 112a fluting 116a of two ends and the fluting 116 of adjacent magnetic steel sheet 112 and form stage portion 112b.For the magnetic steel sheet 112 after fixedly stacking, application is painted then, and allows paint fill stage portion 112b.
For the insulation of stator coil 121 and stator core 111, each inside of 116 of slotting is inserted number respectively and is opened slot liner paper 131.Two ends of fluting insulating paper 131 form bend 133 by sharp bend, allow bend 133 contact the fluting 116a of magnetic steel sheet 112a endways, allow the paint support bends portion 133 that is filled in stage portion 112b simultaneously.In this state, stator coils wound 121.
The bend 133 of fluting insulating paper 131 is in the fluting 116a that also contacts at 111 two end core steel discs of stator core 112a by sharp bend.Therefore, during stator coils wound 121, stator coil 121 acts on the power of fluting insulating paper 131, under the effect of bend 133, is divided into power and the power that is parallel to fluting insulating paper 131 length directions perpendicular to fluting insulating paper 131 length directions.Therefore, can reduce the vertical force of destroying state of insulation.
In sum, motor stator structure of the present invention, allow the magnetic steel sheet 112a fluting 116a of 111 two ends of stator core and the fluting of adjacent magnetic steel sheet 112 form stage portion 112b, and the fluting insulating paper 131 two terminal parts be bent to form the bend 133 that contacts with the 116a that slots, paint is filled in support bends portion 133 among the stage portion 112b.Thereby during stator coils wound 121, the power that allows stator coil 121 act on bend 133 is decomposed, and reduces the active force perpendicular to fluting insulating paper 131 length directions, keeps the insulation property of fluting insulating paper 131.
Claims (1)
1, a kind of motor stator structure, the magnetic steel sheet that stacks forms stator core, fluting at stator core is provided with the fluting insulating paper, and the fluting insulating paper on stator coils wound, insert rotatable rotor in the stator core centre, it is characterized in that: described fluting insulating paper (131) has insulating paper main body (132), bend (133), folding part (133a), and insulating paper main body (132) is inserted in the inside of stator core (111) fluting (116) and contact with it
In two terminal parts of fluting insulating paper (131), at least one position forms presses the bend (133) of certain angle bending, disperses the active force of coil,
And allow the magnetic steel sheet at stator core (111) two ends form bigger fluting, and with adjacent fluting formation stage portion (112b), support bends portion (133),
Application is painted between the bend (133) of fluting insulating paper (131) and the stage portion (112b) of stator core (111), the end of bend (133) is bent to form folding part (133a) by thickness direction, folding part (133a) is positioned at the outside of fluting (116)
The bend (133) of fluting insulating paper (131) forms acute angle with respect to length direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100195311A CN100486078C (en) | 2004-06-09 | 2004-06-09 | Electric machine stator structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100195311A CN100486078C (en) | 2004-06-09 | 2004-06-09 | Electric machine stator structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1707913A CN1707913A (en) | 2005-12-14 |
| CN100486078C true CN100486078C (en) | 2009-05-06 |
Family
ID=35581614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100195311A Expired - Fee Related CN100486078C (en) | 2004-06-09 | 2004-06-09 | Electric machine stator structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100486078C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6959778B2 (en) * | 2017-07-13 | 2021-11-05 | 株式会社デンソー | Stator of rotary electric machine and manufacturing method of the stator |
| CN112787429A (en) * | 2019-11-04 | 2021-05-11 | 南昌海立电器有限公司 | Stator core and shaping method of stator winding |
-
2004
- 2004-06-09 CN CNB2004100195311A patent/CN100486078C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1707913A (en) | 2005-12-14 |
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| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090506 Termination date: 20140609 |
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| EXPY | Termination of patent right or utility model |