CN104410189A - Magnetic steel fixing structure of permanent magnet motor - Google Patents
Magnetic steel fixing structure of permanent magnet motor Download PDFInfo
- Publication number
- CN104410189A CN104410189A CN201410666890.XA CN201410666890A CN104410189A CN 104410189 A CN104410189 A CN 104410189A CN 201410666890 A CN201410666890 A CN 201410666890A CN 104410189 A CN104410189 A CN 104410189A
- Authority
- CN
- China
- Prior art keywords
- magnet steel
- steel
- rotor core
- magnet
- block
- 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.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 118
- 239000010959 steel Substances 0.000 title claims abstract description 118
- 238000000465 moulding Methods 0.000 claims description 11
- 239000002991 molded plastic Substances 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 10
- 238000001746 injection moulding Methods 0.000 abstract description 5
- 239000004035 construction material Substances 0.000 description 4
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention relates to a magnetic steel fixing structure of a permanent magnet motor. Including rotor core and along a plurality of magnet steels of circle uniform interval arrangement in the rotor core, the excircle of magnet steel closely laminates with rotor core's interior circle, just rotor core and magnet steel between be equipped with and fill both and with both whole injection moulding's injection molding, injection molding and magnet steel matched with position form the magnet steel groove that holds the magnet steel, the magnet steel groove with magnet steel parcel location. According to the technical scheme, the magnetic steel is fixed by the magnetic steel grooves, so that the material wrapping part of the magnetic steel is less, the phenomenon that the magnetic steel is wrapped by a large-area material to cause tensile crack when the material shrinks is avoided, the use of the material is reduced, and the appearance consistency is good.
Description
Technical field
The present invention relates to a kind of magneto, be specifically related to a kind of magnetic steel fixed structure of magneto.
Background technology
At present, for the permanent magnet machine rotor of washing machine or other purposes, be generally permanent magnet, rotor core, mounting panel, drive splines etc., by using the inserts such as PBT, BMC, integral molded plastic is shaping, is made into rotor.This fixed structure relates to the fixation problem of magnet steel on rotor, traditional mode directly magnet steel is encased injection moulding by inserts such as PBT, BMC, this type of fixed structure, simplicity of design, but all there is stripped deviation, the product made due to magnet steel, rotor core, some magnet steel construction materials contracts very, some magnet steel parts are exposed, and consistency is poor, and outward appearance unsightly; In addition, encased by material because magnet steel is whole, time rotor is taken out from high temperature die cavity, cooling strain, can make magnet steel break.
Summary of the invention
The object of the present invention is to provide a kind of magnetic steel fixed structure of magneto, this fixed structure can avoid magnet steel when Material shrinkage by drawing crack, and materials are few simultaneously, good looking appearance.
For achieving the above object, present invention employs following technical scheme: the multiple magnet steel comprising rotor core and arrange along rotor core inner circle uniform intervals, the cylindrical of described magnet steel and the inner circle of rotor core fit tightly, and be provided with both fillings between described rotor core and magnet steel and by moulding shaping for both integral molded plastics, the position that described moulding matches with magnet steel forms the magnet steel groove holding magnet steel, and described magnet steel groove is by magnet steel parcel location.
Described magnet steel groove comprises the first block extended to form to inner circle position from cylindrical position by the top of magnet steel, and the thickness of the first block is less than the thickness of magnet steel; Also comprise the second block extended to form to inner circle position from cylindrical position by the bottom of magnet steel, and the thickness of the second block and the thickness of magnet steel match, the second described block is provided with location hole; Also comprise extend to form to the inner circle position of magnet steel from the left and right end face of magnet steel respectively half-surrounded the 3rd, fourth gear block.
The position of described moulding between adjacent two magnet steel is provided with the magnetic steel gap that magnet steel is evenly arranged in rotor core inner circle and locates square hole.
As shown from the above technical solution, the present invention to the fixed structure of magnet steel, makes the construction materials contract part of magnet steel few by magnet steel groove, avoids magnet steel and is wrapped up by large area material and the drawing crack phenomenon that produces when Material shrinkage, decrease the use of material, outward appearance consistency is good simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation after the present invention removes magnet steel;
Fig. 3 is the structural representation of magnet steel groove bottom of the present invention;
Fig. 4 is the structural representation on magnet steel groove top of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described:
The magnetic steel fixed structure of a kind of magneto as shown in Figure 1 and Figure 2, the multiple magnet steel 2 comprising rotor core 1 and arrange along rotor core 1 inner circle uniform intervals, the cylindrical of magnet steel 2 and the inner circle of rotor core 1 fit tightly, and be provided with both fillings between rotor core 1 and magnet steel 2 and by moulding 3 shaping for both integral molded plastics, the position that moulding 3 matches with magnet steel 2 forms the magnet steel groove 4 holding magnet steel 2, and magnet steel 2 is wrapped up location by magnet steel groove 4.Rotor core is generally that silicon steel sheet is made through punching press, rotor core is permeability magnetic material, for magnet steel provides conduction magnetic circuit, and for magnet steel provides support structure, the cylindrical of magnet steel and the inner circle of rotor core are close to conjunction, magnet steel is locked in radial position, by moulding inserts, rotor core and magnet steel is fixed together.
Further, magnet steel groove 4 comprises the first block 41 extended to form to inner circle position from cylindrical position by the top of magnet steel 2, and the thickness of the first block 41 is less than the thickness of magnet steel 2; Also comprise the second block 42 extended to form to inner circle position from cylindrical position by the bottom of magnet steel, and the thickness of the second block 42 and the thickness of magnet steel 2 match, the second block 42 is provided with location hole 421; Also comprise extend to form to the inner circle position of magnet steel from the left and right end face of magnet steel 2 respectively half-surrounded the 3rd, fourth gear block 43,44.For the ease of expressing the structure of magnet steel groove, magnet steel groove is divided into upper and lower two parts and illustrates by Fig. 3, Fig. 4, and Fig. 3 is the bottom of magnet steel groove, and Fig. 4 is the top of magnet steel groove.In other words, the gap of matching with magnet steel 2 that magnet steel groove 4 stays after being removed from moulding 3 by magnet steel 2 exactly, whole magnet steel groove 4 is made up of first, second, third, fourth block, magnet steel groove 4 is not by magnet steel 2 entirety parcel, the first, the 3rd, fourth gear block only wraps up chamfering corresponding to magnet steel 2 edge, the construction materials contract part of such magnet steel just seldom, effectively can avoid construction materials contract shrinkage tear magnet steel.Namely the excircle part of magnet steel 2 fits tightly with the inner circle of rotor core 1, the upper end of magnet steel is provided with the first block, the lower end of magnet steel is provided with the second block, the two ends, left and right of magnet steel are provided with the 3rd, fourth gear block, three, fourth gear block forms half parcel from the left and right end of magnet steel to the inner circle position of magnet steel, i.e. the only chamfered part that formed of the left and right end of parcel magnet steel and inner circle junction.
Further, the position of moulding 3 between adjacent two magnet steel 2 is provided with the magnetic steel gap that magnet steel 2 is evenly arranged in rotor core 1 inner circle and locates square hole 5.In injection moulding process, mould is provided with the backstay matched with location hole in the position of location hole 421, backstay and the first block make magnet steel be locked at axial location.Mould is also provided with the alignment pin of to locate square hole 5 with magnetic steel gap and matching simultaneously, magnet steel being evenly arranged at circumferencial direction can be realized.
Above-described embodiment is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various distortion that those of ordinary skill in the art make technical scheme of the present invention and improvement, all should fall in protection range that claims of the present invention determines.
Claims (3)
1. the magnetic steel fixed structure of a magneto, it is characterized in that: the multiple magnet steel (2) comprising rotor core (1) and arrange along rotor core (1) inner circle uniform intervals, the cylindrical of described magnet steel (2) and the inner circle of rotor core (1) fit tightly, and be provided with both fillings between described rotor core (1) and magnet steel (2) and by moulding (3) shaping for both integral molded plastics, the position that described moulding (3) matches with magnet steel (2) forms the magnet steel groove (4) holding magnet steel (2), described magnet steel groove (4) is by magnet steel (2) parcel location.
2. the magnetic steel fixed structure of magneto according to claim 1, it is characterized in that: described magnet steel groove (4) comprises the first block (41) extended to form to inner circle position from cylindrical position by the top of magnet steel (2), and the thickness of the first block (41) is less than the thickness of magnet steel (2); Also comprise the second block (42) extended to form to inner circle position from cylindrical position by the bottom of magnet steel, and the thickness of the thickness of the second block (42) and magnet steel (2) matches, described the second block (42) is provided with location hole (421); Also comprise extend to form to the inner circle position of magnet steel from the left and right end face of magnet steel (2) respectively half-surrounded the 3rd, fourth gear block (43,44).
3. the magnetic steel fixed structure of magneto according to claim 1, is characterized in that: the position of described moulding (3) between adjacent two magnet steel (2) is provided with the magnetic steel gap that magnet steel (2) is evenly arranged in rotor core (1) inner circle and locates square hole (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410666890.XA CN104410189A (en) | 2014-11-20 | 2014-11-20 | Magnetic steel fixing structure of permanent magnet motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410666890.XA CN104410189A (en) | 2014-11-20 | 2014-11-20 | Magnetic steel fixing structure of permanent magnet motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104410189A true CN104410189A (en) | 2015-03-11 |
Family
ID=52647793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410666890.XA Pending CN104410189A (en) | 2014-11-20 | 2014-11-20 | Magnetic steel fixing structure of permanent magnet motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104410189A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105406623A (en) * | 2015-11-13 | 2016-03-16 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor rotor structure, rotor structure manufacturing method and linear motor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101752920A (en) * | 2008-12-03 | 2010-06-23 | 中山大洋电机股份有限公司 | Outer rotor structure of direct drive motor and manufacturing method thereof |
| US20130229083A1 (en) * | 2012-03-02 | 2013-09-05 | Hsiu-Mei Chang | Structure for Brushless Motors |
| CN203589954U (en) * | 2013-07-18 | 2014-05-07 | 珠海格力电器股份有限公司 | Permanent magnet rotor assembly and permanent magnet motor |
| CN203660684U (en) * | 2013-12-30 | 2014-06-18 | 天津滨海广仁机械制造有限公司 | Fixing device for permanent magnet of permanent magnetic motor |
| CN204231049U (en) * | 2014-11-20 | 2015-03-25 | 合肥荣事达三洋电器股份有限公司 | magnetic steel fixing structure of permanent magnet motor |
-
2014
- 2014-11-20 CN CN201410666890.XA patent/CN104410189A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101752920A (en) * | 2008-12-03 | 2010-06-23 | 中山大洋电机股份有限公司 | Outer rotor structure of direct drive motor and manufacturing method thereof |
| US20130229083A1 (en) * | 2012-03-02 | 2013-09-05 | Hsiu-Mei Chang | Structure for Brushless Motors |
| CN203589954U (en) * | 2013-07-18 | 2014-05-07 | 珠海格力电器股份有限公司 | Permanent magnet rotor assembly and permanent magnet motor |
| CN203660684U (en) * | 2013-12-30 | 2014-06-18 | 天津滨海广仁机械制造有限公司 | Fixing device for permanent magnet of permanent magnetic motor |
| CN204231049U (en) * | 2014-11-20 | 2015-03-25 | 合肥荣事达三洋电器股份有限公司 | magnetic steel fixing structure of permanent magnet motor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105406623A (en) * | 2015-11-13 | 2016-03-16 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor rotor structure, rotor structure manufacturing method and linear motor |
| CN105406623B (en) * | 2015-11-13 | 2018-08-07 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of electric mover structure, Structure of mover manufacturing method and linear motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 230000 science and technology zone, Hefei, Anhui, No. 96 Applicant after: Whirlpool (China) Limited by Share Ltd Address before: 230000 science and technology zone, Hefei, Anhui, No. 96 Applicant before: Hefei Rongshida Sanyo Electric Co., Ltd. |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: HEFEI RONGSHIDA SANYO ELECTRIC CO., LTD. TO: WHIRLPOOL (CHINA) CO., LTD. |
|
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150311 |
|
| WD01 | Invention patent application deemed withdrawn after publication |