CN107947400B - Single support structure of motor stator - Google Patents
Single support structure of motor stator Download PDFInfo
- Publication number
- CN107947400B CN107947400B CN201711103370.8A CN201711103370A CN107947400B CN 107947400 B CN107947400 B CN 107947400B CN 201711103370 A CN201711103370 A CN 201711103370A CN 107947400 B CN107947400 B CN 107947400B
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- CN
- China
- Prior art keywords
- wall
- iron core
- shaft sleeve
- supporting
- pressed
- 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.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention discloses a single support structure of a motor stator, which is formed by stretching a raw plate into a support structure, wherein a support body comprises a supporting part and an iron core mounting part, a shaft sleeve is arranged at the center of the supporting part, a motor shaft is arranged in the shaft sleeve, a stator iron core is arranged on the outer wall of the iron core mounting part, a plurality of folds are pressed on the surface of the supporting part, the pressed supporting part plate is bent towards the outer wall of the shaft sleeve along the folds and then supports the outer wall of the shaft sleeve, and the supporting part plate is bent towards the inner wall of the iron core mounting part and then supports the inner wall of the iron core mounting part, and the supporting positions are fixed through welding. The invention can strengthen the supporting strength of the bracket body, avoid the bracket from being slightly deformed due to unbalanced stress of the bracket to cause the position of the stator core to deviate, ensure the integral strength of the bracket to be higher, further improve the bearing capacity of the hub motor and meet the requirement of a high-power motor.
Description
Technical Field
The invention relates to the field of electric vehicle hub motors, in particular to a bracket structure of a motor stator.
Background
The electric vehicle is driven by adopting the hub motor, and the performance of the hub motor determines the power, the running speed and the bearing capacity of the electric vehicle. The hub motor comprises a stator, a conventional motor stator comprises an iron core and a support, the iron core is fixed on the support, a coil is wound on the iron core, the support is formed by symmetrically splicing two connecting plates with the same shape, the connecting plates are fixed through riveting, the center of each connecting plate is provided with a mounting hole, a shaft sleeve is arranged in each mounting hole in a penetrating mode, and the shaft sleeve is welded on the inner wall of each mounting hole. The two connecting plates are symmetrically spliced, so that the material consumption is high and the cost is high.
In addition, at present, there is a single support structure, and single support structure is directly stretched into the support structure by former sheet material, and the support body is including holding surface and periphery, and the axle sleeve is installed at the holding surface center, for the strengthening effect, and axle sleeve and holding surface hookup location are provided with the packing ring and weld and realize strengthening effect, need all weld operation to the outer lane and the inner circle of packing ring. A plurality of through holes are pressed on the surface of a conventional single-support supporting surface, and the punched through holes are made of waste materials, so that the consumption of materials is relatively large. The structure can meet the bearing requirement of the conventional low-power hub motor, but after the pressure born by the wheel is increased, the high-power hub motor cannot be ensured to normally operate, and the strength of the conventional single-support structure is limited, so that the bearing capacity of the electric vehicle cannot be increased.
Disclosure of Invention
The invention aims to provide a single bracket structure of a motor stator, which solves the problems that the bearing capacity of a hub motor is improved by improving the strength of the single bracket, the requirement of a high-power high-torque motor is met, and the material consumption is further reduced.
The above purpose is achieved by the following technical scheme:
a single support structure of a motor stator is formed by stretching original plate materials into a support structure, a support body comprises a supporting portion and an iron core installation portion, a shaft sleeve is installed at the center of the supporting portion, a motor shaft is installed in the shaft sleeve, and a stator iron core is installed on the outer wall of the iron core installation portion, and is characterized in that: the surface of the supporting part is pressed with a plurality of folds, the pressed supporting part plate is bent towards the outer wall of the shaft sleeve along the folds and then supports the outer wall of the shaft sleeve, and is bent towards the inner wall of the iron core installation part and then supports the inner wall of the iron core installation part, and the supporting positions are fixed through welding.
Preferentially, the support body stretch forming integrally, supporting part and iron core installation department link to each other the part and be continuous structure, supporting part radial slope to the axle sleeve outer wall, supporting part surface is formed with the protruding muscle that is radial interval setting protruding muscle surface is pressed above-mentioned crease back bending panel and is formed the support.
Preferably, the pressed supporting part plate can be bent towards the upper surface or the lower surface of the supporting part and then supports the outer wall of the shaft sleeve.
Preferably, through holes formed after the pressed supporting part plate is bent are uniformly distributed on the surface of the supporting part.
Preferably, a plurality of anti-rotation ribs for preventing the iron core from rotating radially are arranged on the outer wall of the iron core installation part.
Preferably, the pressed supporting part plate is bent at three positions and then supported towards the outer wall of the shaft sleeve, and is bent at six positions and then supported towards the inner wall of the iron core installation part.
Preferably, the pressed supporting part plate is bent everywhere and then supported towards the outer wall of the shaft sleeve, and eight parts are bent and then supported towards the inner wall of the iron core installation part.
Preferably, the pressed supporting plate is supported towards the outer wall of the shaft sleeve after six bending, and is supported towards the iron core installation part after six bending.
Preferably, the pressed supporting plate is supported towards the outer wall of the shaft sleeve after eight bending positions, and is supported towards the iron core installation part after eight bending positions.
Compared with the prior art, the invention has the following advantages:
1. the support that forms after the supporting part panel of pressing was bent supports and leans on axle sleeve outer wall and iron core installation department inner wall, through welded fastening, can strengthen the support intensity of the support body, avoids the unbalanced support atress to lead to the support micro deformation to make stator core position take place the skew for support bulk strength is higher, and then improves wheel hub motor's bearing capacity.
2. The originally pressed supporting part plate is used as the through hole waste material of the bracket body to be treated, and the supporting part plate is bent to form a support, so that the strength of the bracket body is increased, and meanwhile, the material waste is avoided.
3. According to stator requirements of different specifications, supports with different strengths can be selectively set, for example, three supports facing the outer wall of the shaft sleeve are arranged corresponding to six supports facing the inner wall of the iron core installation part, or four supports facing the outer wall of the shaft sleeve are arranged corresponding to eight supports facing the inner wall of the iron core installation part. Any number of combinations are made to accommodate the strength requirements depending on the stator frame strength requirements.
4. The bracket body is integrally stretched and formed, so that the processing is convenient, the welding process of the supporting position is relatively simple, the process is simplified, and the production cost is reduced.
5. The motor stator single-support structure provided by the invention is not only suitable for electric vehicle hub motors, but also suitable for household electrical appliances such as the field of washing machines, the field of automotive warm air motors, water pump motors and the like, can be suitable for various motor fields, and has a wide application range.
Drawings
FIG. 1 is a schematic diagram of a first embodiment of the present invention;
FIG. 2 is a front view of a first embodiment of the present invention;
FIG. 3 is a cross-sectional view taken along the direction A-A in FIG. 2;
FIG. 4 is a sectional view taken in the direction B-B of FIG. 2;
FIG. 5 is a schematic view of another angle structure of the present invention;
FIG. 6 is a schematic diagram of a second embodiment of the present invention;
FIG. 7 is a front view of a second embodiment of the present invention;
FIG. 8 is a cross-sectional view taken along the direction C-C in FIG. 7;
FIG. 9 is a schematic diagram of a third embodiment of the present invention;
FIG. 10 is a front view of a third embodiment of the present invention;
FIG. 11 is a schematic view of a fourth embodiment of the present invention;
FIG. 12 is a front view of a fourth embodiment of the present invention;
FIG. 13 is a schematic view of a fifth embodiment of the present invention;
fig. 14 is a front view of a fifth embodiment of the present invention;
FIG. 15 is a D-D sectional view of a fifth embodiment of the invention;
fig. 16 is a reverse side view of a fifth embodiment of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1 to 5, in a first embodiment of the present invention, a single support structure of a motor stator is formed by stretching a raw plate material into a support body structure, the support body 1 is integrally stretched and formed, the support body 1 includes a support portion 11 and an iron core mounting portion 12, a shaft sleeve 2 is mounted at the center of the support portion 11, a motor shaft is mounted in the shaft sleeve 2, a stator iron core is mounted on the outer wall of the iron core mounting portion 12, the connection portion between the support portion 11 and the iron core mounting portion 12 is a continuous structure, the support portion 11 is radially inclined to the outer wall of the shaft sleeve 2, and the support portion 11 is welded and fixed with the outer wall of the shaft sleeve 2.
The surface of the supporting part 11 is provided with protruding ribs 13 which are radially arranged at intervals, the surface of the protruding ribs 13 is pressed, a plurality of folds are pressed, the pressed supporting part plate 111 is bent towards the outer wall of the shaft sleeve 2 along the folds and then supports the outer wall of the shaft sleeve 2, the supporting part plate is bent towards the inner wall of the iron core mounting part 12 and then supports the inner wall of the iron core mounting part 12, and the supporting positions 112 are fixed through welding.
As shown in fig. 1 to 5, through holes 114 formed in the support portion plate 111 after bending are uniformly distributed on the surface of the support portion 11. A plurality of anti-rotation ribs 121 for preventing the radial rotation of the iron core are provided on the outer wall of the iron core mounting portion 12.
In the first embodiment, the pressed supporting part plate 111 is bent three times and then supported towards the outer wall of the shaft sleeve 2, and bent six times and then supported towards the inner wall of the iron core mounting part 12. The support that forms after the supporting part panel 111 that presses was bent supports and leans on axle sleeve 2 outer wall and iron core installation department 12 inner wall, through welded fastening, can strengthen the support intensity of the support body, avoids the support atress unbalance to lead to the support micro deformation to make stator core position take place the skew for support bulk strength is higher, and then improves hub motor's bearing capacity, satisfies high-power motor's requirement.
As shown in fig. 6 to 8, in the second embodiment of the present invention, the pressed supporting portion plate 111 is bent around and then supported towards the outer wall of the sleeve 2, and eight bent portions are supported towards the inner wall of the core mounting portion 12, and the supporting portions 112 are welded and fixed.
As shown in fig. 9 to 10, in the third embodiment of the present invention, the pressed supporting portion plate 111 is bent six times and then supported towards the outer wall of the sleeve 2, and is bent six times and then supported towards the inner wall of the core mounting portion 12.
As shown in fig. 11 to 12, in the fourth embodiment of the present invention, the pressed supporting portion plate 111 is bent eight times and then supported towards the outer wall of the sleeve 2, and is bent eight times and then supported towards the inner wall of the core mounting portion 12.
As shown in fig. 13 to 16, in a fifth embodiment of the present invention, the pressed supporting plate 111 is bent toward the lower surface of the supporting portion 11 and then supports the outer wall of the sleeve 2. The bending direction is different from the supporting part plate facing the inner wall of the iron core installation part 12, and the bending directions of the two positions are opposite, so that the effect of increasing the strength of the bracket body 1 can still be realized.
In the fifth embodiment, the pressed supporting portion plate 111 is bent three times and then supported toward the lower surface of the supporting portion 11 toward the outer wall of the sleeve 2, and bent six times and then supported toward the inner wall of the core mounting portion 12. The supporting portion plate 111 which is also applicable to being pressed is supported towards the outer wall of the shaft sleeve 2 in the direction of the lower surface of the supporting portion 11 after being bent around, and is supported towards the inner wall of the iron core mounting portion 12 after being bent eight times. And the support part plate 111 suitable for being pressed has six bending positions and is supported towards the outer wall of the shaft sleeve 2 towards the lower surface direction of the support part 11, and six bending positions and is supported towards the inner wall of the iron core mounting part 12. The support portion plate 111 which is also applicable to being pressed is supported towards the outer wall of the shaft sleeve 2 in the direction of the lower surface of the support portion 11 after eight bending, and is supported towards the inner wall of the iron core mounting portion 12 after eight bending.
It is also possible to selectively bend the pressed supporting portion plate 111 at intervals partially toward the lower surface of the supporting portion 11 and then support the outer wall of the sleeve 2, and bend the pressed supporting portion plate partially toward the upper surface of the supporting portion 11 and then support the outer wall of the sleeve 2 in the same single bracket structure.
According to stator requirements of different specifications, supports with different strengths can be selectively set, and the pressed bending of the pressed support part plates can be combined in any number to adapt to strength requirements. The originally pressed supporting part plate 111 is used as a through hole waste material of the bracket body to be processed, and now the supporting part plate is bent to form a support, so that the strength of the bracket body is increased, and meanwhile, the waste of materials is avoided. The bracket body is integrally stretched and formed, so that the processing is convenient, the welding process of the supporting position is relatively simple, the process is simplified, and the production cost is reduced.
The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent variation or variation of the above embodiments according to the technical principles of the present invention still fall within the scope of the technical solutions of the present invention.
Claims (7)
1. A single support structure of a motor stator is formed by stretching original plate materials into a support structure, a support body comprises a supporting portion and an iron core installation portion, a shaft sleeve is installed at the center of the supporting portion, a motor shaft is installed in the shaft sleeve, and a stator iron core is installed on the outer wall of the iron core installation portion, and is characterized in that: the surface of the supporting part is pressed with a plurality of folds, the pressed supporting part plate is bent towards the outer wall of the shaft sleeve along the folds and then supports the outer wall of the shaft sleeve, and is bent towards the inner wall of the iron core mounting part and then supports the inner wall of the iron core mounting part, and the supporting positions are fixed through welding; the support body is integrally formed by stretching, the connecting part of the support part and the iron core mounting part is of a continuous structure, the support part is radially inclined to the outer wall of the shaft sleeve, protruding ribs which are radially arranged at intervals are formed on the surface of the support part, and the plate is bent to form a support after the folds are pressed on the surface of the protruding ribs; the through holes formed after the pressed supporting part plate is bent are uniformly distributed on the surface of the supporting part.
2. A single bracket structure for a stator of an electric machine as claimed in claim 1, wherein: the pressed supporting part plate can be bent towards the upper surface or the lower surface of the supporting part and then supports the outer wall of the shaft sleeve.
3. A single bracket structure for a stator of an electric machine as claimed in claim 1, wherein: the outer wall of the iron core installation part is provided with a plurality of anti-rotation ribs for preventing the iron core from rotating radially.
4. A single bracket structure for a stator of an electric machine as claimed in claim 3, wherein: the pressed supporting part plate is bent at three positions and then supported towards the outer wall of the shaft sleeve, and bent at six positions and then supported towards the inner wall of the iron core installation part.
5. A single bracket structure for a stator of an electric machine as claimed in claim 3, wherein: the pressed supporting part plate is bent everywhere and then supported towards the outer wall of the shaft sleeve, and eight parts are bent and then supported towards the inner wall of the iron core installation part.
6. A single bracket structure for a stator of an electric machine as claimed in claim 3, wherein: the pressed supporting plate is supported towards the outer wall of the shaft sleeve after six bending, and is supported towards the iron core installation part after six bending.
7. A single bracket structure for a stator of an electric machine as claimed in claim 3, wherein: the pressed supporting plate is supported towards the outer wall of the shaft sleeve after eight bending positions, and is supported towards the iron core installation part after eight bending positions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711103370.8A CN107947400B (en) | 2017-11-10 | 2017-11-10 | Single support structure of motor stator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711103370.8A CN107947400B (en) | 2017-11-10 | 2017-11-10 | Single support structure of motor stator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107947400A CN107947400A (en) | 2018-04-20 |
| CN107947400B true CN107947400B (en) | 2023-07-18 |
Family
ID=61933759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711103370.8A Active CN107947400B (en) | 2017-11-10 | 2017-11-10 | Single support structure of motor stator |
Country Status (1)
| Country | Link |
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| CN (1) | CN107947400B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106230146A (en) * | 2016-08-15 | 2016-12-14 | 台州市金宇机电有限公司 | A kind of stator of wheel hub electric motor of electric vehicle |
| CN206180711U (en) * | 2016-11-25 | 2017-05-17 | 杨吉聪 | Electric car wheel hub motor stator |
| CN106523870A (en) * | 2017-01-10 | 2017-03-22 | 王星博 | Transformable support |
| CN207353924U (en) * | 2017-11-10 | 2018-05-11 | 台州莱玛电机零部件有限公司 | A kind of single-side stand structure of motor stator |
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2017
- 2017-11-10 CN CN201711103370.8A patent/CN107947400B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107947400A (en) | 2018-04-20 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20220608 Address after: 317000 No. 1-111, Taozhu tunzhi village, Linhai City, Taizhou City, Zhejiang Province Applicant after: Xiang Zhaoxian Address before: 318000 No.81, Qianzhang Road, qiansuo street, Jiaojiang District, Taizhou City, Zhejiang Province Applicant before: TAIZHOU LAIMA MOTOR COMPONENTS CO.,LTD. |
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| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |