CN204258465U - A kind of elasticity magnetic shoe folder of permanent magnet DC motor - Google Patents
A kind of elasticity magnetic shoe folder of permanent magnet DC motor Download PDFInfo
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- CN204258465U CN204258465U CN201420805832.6U CN201420805832U CN204258465U CN 204258465 U CN204258465 U CN 204258465U CN 201420805832 U CN201420805832 U CN 201420805832U CN 204258465 U CN204258465 U CN 204258465U
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- magnetic shoe
- support arms
- resilient support
- permanent magnet
- transition sections
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Abstract
The utility model relates to the magnetic shoe fastener field of permanent magnet DC motor, especially a kind of elasticity magnetic shoe folder of permanent magnet DC motor.The magnetic shoe fixed of current glue bonding way, to first having strict requirement to the preparation condition of glue and temperature, easily produces and lost efficacy under the test of high/low temperature and chemical compatibility.The utility model comprises two resilient support arms and a curved transition sections, and two resilient support arms are separately positioned on the two ends of curved transition sections, form semi-closed structure between resilient support arms and curved transition sections; Be provided with concave inward structure in the centre position of two resilient support arms or near outside corresponding section, concave inward structure for cave between two resilient support arms.The stress point of the technical program one side magnetic shoe is 2 points, and lifting surface area is larger, stressed more even, avoids stressed concentrating and causes the phenomenon of magnetic shoe fragmentation.
Description
Technical field
The utility model relates to the magnetic shoe fastener field of permanent magnet DC motor, especially a kind of elasticity magnetic shoe folder of permanent magnet DC motor.
Background technology
In the fixed solution of the magnetic shoe of permanent magnet DC motor, it is generally the structure that the magnetic shoe folder between two panels magnetic shoe adopts " V " type magnetic shoe folder or magnetic shoe to adopt glue bonding.Due to the list back of the body elastic force effect of " V " type magnetic shoe folder; Magnetic shoe stressed more concentrated, the too large magnetic shoe of elastic force is easily splitting broken, and elastic force is little, and the bed knife of magnetic shoe is inadequate, not by high/low temperature vibration test that automobile is severe.And first the magnetic shoe fixed by glue bonding way to having strict requirement to the preparation condition of glue and temperature, easily producing under the test of high/low temperature and chemical compatibility and losing efficacy.
Utility model content
The purpose of this utility model is deficiency in order to solve above-mentioned technology and provides that a kind of elastic force is large, elasticity magnetic shoe folder to the stressed more uniform permanent magnet DC motor of magnetic shoe.
In order to achieve the above object, the elasticity magnetic shoe folder of the permanent magnet DC motor designed by the utility model, it comprises two resilient support arms and a curved transition sections, two resilient support arms are separately positioned on the two ends of curved transition sections, form semi-closed structure between resilient support arms and curved transition sections; Be provided with concave inward structure in the centre position of two resilient support arms or near outside corresponding section, concave inward structure for cave between two resilient support arms.
Technique scheme, during use, is arranged between two panels magnetic shoe, curved transition sections generation elastic deformation, thus makes that resilient support arms all has outside support force; Simultaneously when curved transition sections deformation, spacing between resilient support arms reduces, cause the concave inward structure in resilient support arms to produce deformation near also there is extruding, thus add the elastic force of both sides in resilient support arms, make it fixing more firm to the support of magnetic shoe.
As optimization, the angle between two described resilient support arms is greater than 0 degree, and in semi-closed structure, the opening between two resilient support arms increases gradually.This structure makes elasticity magnetic shoe press from both sides in use, needs to be compressed, thus make resilient support arms produces elastic force between resilient support arms, fixing more firmly stable to the support of magnetic shoe.
The hollow depth of two described concave inward structures is consistent, and its hollow depth is greater than the half of the distance of two resilient support arms and curved transition sections junction.After this structure can make concave inward structure be compressed, the elastic force that two resilient support arms produce is identical, thus makes the support of both sides magnetic shoe more uniform and stable.
Described concave inward structure is circular arc, and the transition in resilient support arms is more steady, and the release of elastic force relaxes more, and between concave inward structure after contact squeeze contact area comparatively large, stability is better.
Described resilient support arms and curved transition sections are structure as a whole, and are formed by flat flex steel wire shaping.The processing of this structure is simple, convenient formation, and production technology is simple, and production cost is lower, good integrity, and stability is in use high.
The elasticity magnetic shoe folder of the permanent magnet DC motor that the utility model obtains, is embedded in the edge surface of the two panels magnetic shoe of casing inner support N pole and S pole; Resiliency supported principle is identical with V-arrangement magnetic shoe folder, and support elastic force can increase the magnetic shoe surface elastic support force of 1 ~ 2 times; The stress point of one side magnetic shoe has 1 point of " V " shape to be increased to 2 points, and lifting surface area is larger, stressed more even.The lateral bolster support force of whole magnetic shoe adds 1 ~ 2 times.The fastening force of magnetic shoe is corresponding to be added, and the stressed place of magnetic shoe adds two places; So avoid stressed concentrating and cause the phenomenon of magnetic shoe fragmentation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Oblique view when Fig. 2 is the utility model assembling;
Front view when Fig. 3 is the utility model assembling;
Cutaway view when Fig. 4 is the utility model assembling.
Embodiment
Below by embodiment, the utility model will be further described by reference to the accompanying drawings.
Embodiment 1:
As shown in Figure 1, the elasticity magnetic shoe folder of the permanent magnet DC motor that the present embodiment describes, it comprises two resilient support arms 32 and a curved transition sections 31, two resilient support arms 32 are separately positioned on the two ends of curved transition sections 31, form semi-closed structure between resilient support arms 32 and curved transition sections 31; Be provided with concave inward structure 33 in the centre position of two resilient support arms 32 or near outside corresponding section, concave inward structure 33 is cave between two resilient support arms 32; Angle between two described resilient support arms 32 is greater than 0 degree, and in semi-closed structure, the opening between two resilient support arms 32 increases gradually; The hollow depth of two described concave inward structures 33 is consistent, and its hollow depth is greater than the half of the distance of two resilient support arms 32 and curved transition sections 31 junction.Described concave inward structure 33 is circular arc, and described resilient support arms 32 is structure as a whole with curved transition sections 31, and is formed by flat flex steel wire shaping.
As shown in Figure 2, Figure 3, Figure 4,4 magnetic shoes 2 in motor case 1 press from both sides 4 centrosymmetric spacing by 2 fixing magnetic shoes, discharge (3) and (4) place that elastic force acts on waist (1) limit, (6) limit, afterbody respectively after property deformation after being contacted with (5) place with waist inner recess circular arc (2) by head circular arc (7) elastic deformation of two centrosymmetric elasticity magnetic shoes folders 3 again, magnetic shoe 2 is prolonged to the support of opening on circumferentially both sides; For increasing elastic force, waist circular arc (2) and (5) of elasticity magnetic shoe folder 3 are released state in a free state, after external force circular arc (2) and (5) laminating, tail width is greater than the space that work is, at this moment circular arc (2) and (5) strain just can occur and outwards discharge elastic force; For avoiding the stressed of magnetic shoe to concentrate, the elasticity steel wire that elasticity magnetic shoe folder 3 have employed flat is shaping.So both meet the effect that elastic force turn avoid greatly magnetic shoe stress raisers.The vibration of particularly suitable similar automobile direct current permanent magnet motor is suitable under requiring relatively extreme environment.
Claims (7)
1. the elasticity magnetic shoe folder of a permanent magnet DC motor, it is characterized in that: it comprises two resilient support arms and a curved transition sections, two resilient support arms are separately positioned on the two ends of curved transition sections, form semi-closed structure between resilient support arms and curved transition sections; Be provided with concave inward structure in the centre position of two resilient support arms or near outside corresponding section, concave inward structure for cave between two resilient support arms.
2. the elasticity magnetic shoe folder of a kind of permanent magnet DC motor according to claim 1, it is characterized in that: the angle between two described resilient support arms is greater than 0 degree, and in semi-closed structure, the opening between two resilient support arms increases gradually.
3. the elasticity magnetic shoe folder of a kind of permanent magnet DC motor according to claim 1 and 2, is characterized in that: the hollow depth of two described concave inward structures is consistent, and its hollow depth is greater than the half of the distance of two resilient support arms and curved transition sections junction.
4. the elasticity magnetic shoe folder of a kind of permanent magnet DC motor according to claim 1 and 2, is characterized in that: described concave inward structure is circular arc.
5. the elasticity magnetic shoe folder of a kind of permanent magnet DC motor according to claim 3, is characterized in that: described concave inward structure is circular arc.
6. the elasticity magnetic shoe folder of a kind of permanent magnet DC motor according to claim 4, is characterized in that: described resilient support arms and curved transition sections are structure as a whole, and is formed by flat flex steel wire shaping.
7. the elasticity magnetic shoe folder of a kind of permanent magnet DC motor according to claim 5, is characterized in that: described resilient support arms and curved transition sections are structure as a whole, and is formed by flat flex steel wire shaping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420805832.6U CN204258465U (en) | 2014-12-17 | 2014-12-17 | A kind of elasticity magnetic shoe folder of permanent magnet DC motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420805832.6U CN204258465U (en) | 2014-12-17 | 2014-12-17 | A kind of elasticity magnetic shoe folder of permanent magnet DC motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204258465U true CN204258465U (en) | 2015-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420805832.6U Active CN204258465U (en) | 2014-12-17 | 2014-12-17 | A kind of elasticity magnetic shoe folder of permanent magnet DC motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN204258465U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106899099A (en) * | 2017-04-13 | 2017-06-27 | 东风博泽汽车系统有限公司 | For the elastic magnetic shoe folder that automobile cooling fan permanent magnet DC motor magnetic shoe is fixed |
-
2014
- 2014-12-17 CN CN201420805832.6U patent/CN204258465U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106899099A (en) * | 2017-04-13 | 2017-06-27 | 东风博泽汽车系统有限公司 | For the elastic magnetic shoe folder that automobile cooling fan permanent magnet DC motor magnetic shoe is fixed |
| CN106899099B (en) * | 2017-04-13 | 2023-04-25 | 东风博泽汽车系统有限公司 | Elastic magnetic shoe clamp for fixing magnetic shoe of permanent magnet direct current motor of automobile cooling fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 312300 No. 1801 Renmin West Road, Shaoxing, Zhejiang, Shangyu Patentee after: Wolong Electric Drive Group Co., Ltd. Address before: 312300 No. 1801 Renmin West Road, Shaoxing, Zhejiang, Shangyu Patentee before: Wolong Electric Group Co., Ltd. |