CN103904802A - External rotor of direct current motor of washing machine - Google Patents
External rotor of direct current motor of washing machine Download PDFInfo
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- CN103904802A CN103904802A CN201410155243.2A CN201410155243A CN103904802A CN 103904802 A CN103904802 A CN 103904802A CN 201410155243 A CN201410155243 A CN 201410155243A CN 103904802 A CN103904802 A CN 103904802A
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- plastic body
- permanent magnet
- external rotor
- direct current
- washing machine
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention relates to an external rotor of a direct current motor of a washing machine. The external rotor comprises a circular plastic body and permanent magnets arranged in the plastic body. The permanent magnets are annually and evenly distributed, a circular ring is formed in the plastic body, a locating hole is formed between every two adjacent permanent magnets, and a concentric circular rib with the center of the plastic body serving as the center of a circle and radiation ribs with the center of the plastic body serving as the center are arranged in the plastic body. According to the external rotor of the direct current motor of the washing machine, the locating holes are formed between the adjacent permanent magnets and rigid connection between the permanent magnets and the plastic body can be reduced, so that the injection molding stress between the permanent magnets and the plastic body is reduced in the process of injection molding and breakage of the permanent magnets is not prone to occurrence.
Description
Technical field
The present invention relates to plastic magnetic rotor technical field, refer to especially a kind of washing machine direct current machine external rotor.
Background technology
Washing machine direct current machine external rotor adopts yoke and PBT is plastic injection-moulded forms, and unreasonable due to structural design, in the time of injection mo(u)lding, easily caused the fragmentation due to injection moulding internal stress of a large amount of permanent magnets.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of and be difficult for causing permanent magnet because of the broken washing machine direct current machine external rotor of injection moulding internal stress.
For addressing the above problem, the technical solution used in the present invention is: washing machine direct current machine external rotor, comprise circular plastic body and be arranged on the permanent magnet in plastic body, described permanent magnet is uniformly distributed along hoop, and in plastic body, form an annulus, between adjacent permanent magnet, be provided with location hole, the center take plastic body of being provided with in described plastic body is as the concentric circles muscle in the center of circle and the radiation tendon centered by the center of plastic body.
The lower surface of described permanent magnet is not coated by plastic body, only has the chamfered part of permanent magnet to be wrapped by.
The middle part, upper surface that is positioned at permanent magnet on described plastic body is provided with diagonal bar.
The glue-feeder of described plastic body is positioned on concentric circles muscle.
The invention has the beneficial effects as follows: above-mentioned washing machine direct current machine external rotor, it arranges location hole between adjacent permanent magnet, can reduce being rigidly connected between permanent magnet and plastic body, thereby the injection moulding stress while reducing injection moulding between permanent magnet and plastic body, is difficult for causing the fragmentation of permanent magnet.In addition, the position of its glue-feeder is all on concentric circles muscle, like this this device charging moulding is divided into inside and outside two parts, inside and outside moulding does not interfere with each other, rotor radiation tendon is connected with permanent magnet seam, by radiation tendon, permanent magnet is plastic along concentric circles muscle by glue-feeder when moulding, avoid so the direct impact to permanent magnet into glue and cause permanent magnet fragmentation.
Accompanying drawing explanation
Figure l is main TV structure schematic diagram of the present invention;
Fig. 2 is backsight structural representation of the present invention;
Fig. 3 is sectional structure schematic diagram of the present invention;
In figure: l, plastic body, 2, permanent magnet, 3, location hole, 4, concentric circles muscle, 5, radiation tendon, 6, diagonal bar, 7, glue-feeder.
Embodiment
Below by specific embodiment, washing machine direct current machine external rotor of the present invention is described in further detail.
As scheme as shown in l, Fig. 2, Fig. 3, washing machine direct current machine external rotor, comprise circular plastic body l and be arranged on the permanent magnet 2 in plastic body l, described permanent magnet 2 is uniformly distributed along hoop, and in plastic body l, form an annulus, between adjacent permanent magnet 2, be provided with location hole 3, the center take plastic body l of being provided with in described plastic body l is as the concentric circles muscle 4 in the center of circle and the radiation tendon 5 centered by the center of plastic body l.Arranging of location hole 3 can reduce being rigidly connected between permanent magnet 2 and plastic body 1, thereby reduces the injection moulding stress between permanent magnet 2 and plastic body 1 when injection moulding, is difficult for causing the fragmentation of permanent magnet 2.
As preferred version, the lower surface of described permanent magnet 2 is not coated by plastic body l, only has the chamfered part of permanent magnet 2 to be wrapped by, thereby reduces permanent magnet 2 in the time of plastic body l moulding, broken due to plastic shrink.
As preferred version, the middle part, upper surface that is positioned at permanent magnet 2 on described plastic body l is provided with diagonal bar 6.This diagonal bar 6 can change plastics and enter glue direction, avoids plastics to cause permanent magnet 2 fragmentations from magnet upper surface direct charging impact permanent-magnet body 2.
As preferred version, the glue-feeder 7 of described plastic body l is positioned on concentric circles muscle 4.Like this this device charging moulding is divided into inside and outside two parts, inside and outside moulding does not interfere with each other, rotor radiation tendon 5 is connected with permanent magnet 2 seams, when moulding by glue-feeder 7 along concentric circles muscle 4 by radiation tendon 5 by plastic permanent magnet 2, avoid so the direct impact to permanent magnet 2 into glue and cause permanent magnet 2 fragmentations.
The above embodiments are principle and effect thereof of illustrative the invention only, and the embodiment of part utilization, but not for limiting the present invention; It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise of the invention, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (4)
1. washing machine direct current machine external rotor, comprise circular plastic body and be arranged on the permanent magnet in plastic body, it is characterized in that: described permanent magnet is uniformly distributed along hoop, and in plastic body, form an annulus, between adjacent permanent magnet, be provided with location hole, the center take plastic body of being provided with in described plastic body is as the concentric circles muscle in the center of circle and the radiation tendon centered by the center of plastic body.
2. according to the washing machine direct current machine external rotor described in claim l, it is characterized in that: the lower surface of described permanent magnet is not coated by plastic body, only have the chamfered part of permanent magnet to be wrapped by.
3. according to the washing machine direct current machine external rotor described in claim l or 2, it is characterized in that: the middle part, upper surface that is positioned at permanent magnet on described plastic body is provided with diagonal bar.
4. according to the washing machine direct current machine external rotor described in claim l or 2, it is characterized in that: the glue-feeder of described plastic body is positioned on concentric circles muscle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410155243.2A CN103904802B (en) | 2014-04-17 | 2014-04-17 | Washing machine direct current generator outer rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410155243.2A CN103904802B (en) | 2014-04-17 | 2014-04-17 | Washing machine direct current generator outer rotor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103904802A true CN103904802A (en) | 2014-07-02 |
| CN103904802B CN103904802B (en) | 2016-06-08 |
Family
ID=50995994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410155243.2A Active CN103904802B (en) | 2014-04-17 | 2014-04-17 | Washing machine direct current generator outer rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103904802B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113270952A (en) * | 2021-03-27 | 2021-08-17 | 大庆虹铭科技有限公司 | Flexible driving semi-direct drive motor for oil pumping unit |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1954110A (en) * | 2004-06-24 | 2007-04-25 | Lg电子株式会社 | Motor of washing machine |
| CN101379682A (en) * | 2006-02-08 | 2009-03-04 | 丰田自动车株式会社 | Rotor manufacturing method |
| CN101997346A (en) * | 2009-08-17 | 2011-03-30 | 三星电子株式会社 | Motor usable with washing machine and washing machine having the same |
| CN202178688U (en) * | 2011-08-05 | 2012-03-28 | 佛山市威灵洗涤电机制造有限公司 | Permanent-magnet synchronous motor |
| CN102723793A (en) * | 2012-06-20 | 2012-10-10 | 常州新亚电机有限公司 | Combined motor stator component and sleeve used for wet operation pump and assembly method thereof |
| CN102969862A (en) * | 2012-12-04 | 2013-03-13 | 浙江三星机电股份有限公司 | Outer rotor type brushless direct current motor |
| US20140062238A1 (en) * | 2012-09-04 | 2014-03-06 | Markus Anton Mueller | Modular electrical machine |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH631841A5 (en) * | 1978-11-27 | 1982-08-31 | Bbc Brown Boveri & Cie | RADIAL VENTILATED DISC ROTOR FOR AN ELECTRICAL MACHINE. |
| JP2012016236A (en) * | 2010-07-05 | 2012-01-19 | Shinano Kenshi Co Ltd | Permanent magnet rotor |
| CN203219036U (en) * | 2013-03-01 | 2013-09-25 | 徐州苏通机电科技有限公司 | Novel rotor of permanent magnet motor |
| CN103532274B (en) * | 2013-10-25 | 2016-03-30 | 湖南五凌电力工程有限公司 | There is the rotor support power generator of edge of a wing wheel hub |
-
2014
- 2014-04-17 CN CN201410155243.2A patent/CN103904802B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1954110A (en) * | 2004-06-24 | 2007-04-25 | Lg电子株式会社 | Motor of washing machine |
| CN101379682A (en) * | 2006-02-08 | 2009-03-04 | 丰田自动车株式会社 | Rotor manufacturing method |
| CN101997346A (en) * | 2009-08-17 | 2011-03-30 | 三星电子株式会社 | Motor usable with washing machine and washing machine having the same |
| CN202178688U (en) * | 2011-08-05 | 2012-03-28 | 佛山市威灵洗涤电机制造有限公司 | Permanent-magnet synchronous motor |
| CN102723793A (en) * | 2012-06-20 | 2012-10-10 | 常州新亚电机有限公司 | Combined motor stator component and sleeve used for wet operation pump and assembly method thereof |
| US20140062238A1 (en) * | 2012-09-04 | 2014-03-06 | Markus Anton Mueller | Modular electrical machine |
| CN102969862A (en) * | 2012-12-04 | 2013-03-13 | 浙江三星机电股份有限公司 | Outer rotor type brushless direct current motor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113270952A (en) * | 2021-03-27 | 2021-08-17 | 大庆虹铭科技有限公司 | Flexible driving semi-direct drive motor for oil pumping unit |
| CN113270952B (en) * | 2021-03-27 | 2023-04-25 | 大庆虹铭科技有限公司 | Flexible driving semi-direct driving motor for oil pumping unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103904802B (en) | 2016-06-08 |
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