CN205231867U - Motor core and casing device that interference fit connects - Google Patents
Motor core and casing device that interference fit connects Download PDFInfo
- Publication number
- CN205231867U CN205231867U CN201520926622.7U CN201520926622U CN205231867U CN 205231867 U CN205231867 U CN 205231867U CN 201520926622 U CN201520926622 U CN 201520926622U CN 205231867 U CN205231867 U CN 205231867U
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- casing
- iron core
- interference fit
- silicon steel
- steel sheet
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Abstract
The utility model relates to a motor core and casing device that interference fit connects, including casing and embedded iron core in the casing, the iron core set up with the casing is concentric, the iron core pile up by at least two -layer punching press silicon steel sheet and form, every punching press silicon steel sheet excircle department is equipped with at least one flange to make the iron core be connected with casing interference fit. Compared with the prior art, the utility model has the advantages of the concentricity is high, firm more, the product is better.
Description
Technical field
The utility model relates to electric machine iron core mounting technology, especially relates to electric machine iron core and the casing device of the connection of a kind of interference fit.
Background technology
In hollow-cup motor assembly technology, reference for assembling due to front and rear cover is casing endoporus, endoporus and the casing endoporus of stator core have very high concentricity requirement, if concentricity can not meet the demands, hollow-cup motor there will be and is similar to the monolateral phenomenon of the suction being decided to be moment, thus affect empty load of motor electric current, the performances such as efficiency.
The assembly method of current employing comprises casing and carries out screening stepping to coordinate iron core by inner wall size, casing iron core small―gap suture is adopted to coordinate, casing inner wall bore hole, bulging Deng Hou road treatment process etc., said method can increase the scrappage of motor manufacturing, the problems such as cost.
Utility model content
The purpose of this utility model be exactly provide to overcome defect that above-mentioned prior art exists a kind of concentricity high, more firmly, the electric machine iron core that connects of the more excellent interference fit of product and casing device.
The purpose of this utility model can be achieved through the following technical solutions:
The electric machine iron core that a kind of interference fit connects and casing device, comprise casing and be embedded in the iron core in casing, described iron core is arranged with casing is concentric, it is characterized in that, described iron core forms by least two-layer punching silicon steel sheet is stacking, each punching silicon steel sheet cylindrical place is provided with at least one flange, thus iron core is connected with casing interference fit.
Preferably, described flange is provided with 3 to 10.
Preferably, the arc chord angle of described flange is 3 to 30 °.
Preferably, described arc chord angle is 15 °.
Preferably, described iron core is connected with casing by glue.
Compared with prior art, the utility model has the following advantages:
1, concentricity is high, adopts new silicon steel sheet stamping technology, and to compensate casing bearing tolerances, the method can meet the concentricity requirement of hollow-cup motor casing endoporus and iron core inwall.
2, more firm, by arranging flange on silicon steel sheet, under the prerequisite of being out of shape not causing casing, realizing interference connected mode, making connection more firm.
3, product is more excellent, have employed new silicon steel sheet punching press and iron core casing mounting technology, decreases cost, reduces the processing process of rear road, adds motor qualification rate.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model silicon steel sheet;
Fig. 2 is the structural representation of the utility model casing;
Fig. 3 is iron core casing assembling schematic diagram.
Wherein 1 be casing, 2 to be iron core, 3 be that silicon steel sheet, 4 is flange, a be increase the silicon steel sheet diameter of flange sections, b be do not add the silicon steel sheet diameter of flange sections, θ is the arc chord angle of flange.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is a part of embodiment of the present utility model, instead of whole embodiment.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, all should belong to the scope of the utility model protection.
As Figure 1-3, the electric machine iron core that a kind of interference fit connects and casing device, comprise casing 1 and be embedded in the iron core 2 in casing, described iron core 2 is arranged with casing 1 is concentric, described iron core forms by least two-layer punching silicon steel sheet 3 is stacking, each punching silicon steel sheet 3 cylindrical place is provided with at least one flange 4, thus iron core is connected with casing interference fit.
Described flange 4 is provided with 3 to 10, is preferably 5.The arc chord angle θ of described flange 4 is 3 to 30 °, is preferably 15 °.Described punching silicon steel sheet can a step or multistep be stamped to form.
Hollow-cup motor casing 1 wall thickness is thinner, its bearing tolerances band can not meet design requirement, its tolerance range is not reduced in casing the utility model, hollow-cup motor iron core 2 forms for punching press silicon steel punching 3 is stacking, before this scheme, silicon steel sheet is standard concentric circles, in the utility model, silicon steel sheet cylindrical increases flange 4, the technique that silicon steel punching is used, monolithic can be met once be washed into, the complexity of Sheet Metal Forming Technology can not be increased, follow-uply to form stacking at random for silicon steel sheet, thus the iron core press-in casing of heap poststack, decrease pressing-in force and allow glue bonding of having living space add the adhesion of casing and iron core, also casing endoporus and iron core bore concentricity can ensure within requiring by assembly technology.
The above; be only embodiment of the present utility model; but protection range of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; can expect amendment or the replacement of various equivalence easily, these amendments or replacement all should be encompassed within protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range of claim.
Claims (5)
1. the electric machine iron core that connects of an interference fit and casing device, comprise casing and be embedded in the iron core in casing, described iron core is arranged with casing is concentric, it is characterized in that, described iron core forms by least two-layer punching silicon steel sheet is stacking, each punching silicon steel sheet cylindrical place is provided with at least one flange, thus iron core is connected with casing interference fit.
2. the electric machine iron core that connects of a kind of interference fit according to claim 1 and casing device, it is characterized in that, described flange is provided with 3 to 10.
3. the electric machine iron core that connects of a kind of interference fit according to claim 1 and casing device, it is characterized in that, the arc chord angle of described flange is 3 to 30 °.
4. the electric machine iron core that connects of a kind of interference fit according to claim 3 and casing device, it is characterized in that, described arc chord angle is 15 °.
5. the electric machine iron core that connects of a kind of interference fit according to claim 1 and casing device, it is characterized in that, described iron core is connected with casing by glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520926622.7U CN205231867U (en) | 2015-11-19 | 2015-11-19 | Motor core and casing device that interference fit connects |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520926622.7U CN205231867U (en) | 2015-11-19 | 2015-11-19 | Motor core and casing device that interference fit connects |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205231867U true CN205231867U (en) | 2016-05-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520926622.7U Active CN205231867U (en) | 2015-11-19 | 2015-11-19 | Motor core and casing device that interference fit connects |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205231867U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106787271A (en) * | 2015-11-19 | 2017-05-31 | 上海鸣志电器股份有限公司 | A kind of electric machine iron core and casing device of interference fit connection |
-
2015
- 2015-11-19 CN CN201520926622.7U patent/CN205231867U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106787271A (en) * | 2015-11-19 | 2017-05-31 | 上海鸣志电器股份有限公司 | A kind of electric machine iron core and casing device of interference fit connection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |