CN102412645B - Motor rotor body - Google Patents
Motor rotor body Download PDFInfo
- Publication number
- CN102412645B CN102412645B CN201110383429.XA CN201110383429A CN102412645B CN 102412645 B CN102412645 B CN 102412645B CN 201110383429 A CN201110383429 A CN 201110383429A CN 102412645 B CN102412645 B CN 102412645B
- Authority
- CN
- China
- Prior art keywords
- dovetail
- magnet steel
- motor rotor
- arcwall face
- dovetail groove
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The invention belongs to the technical field of a motor, and in particular relates to a motor rotor body. With the adoption of the motor rotor body, the technical problems that the traditional technical design is not rational and the like are solved. The motor rotor body comprises a body which is formed by overlapping a plurality of rotor sheets; the center of the body is provided with a central hole for fixing a rotor shaft and the outer edge of the body is provided with a plurality of dovetail bodies which are provided with big outer ends and small inner ends and are uniformly distributed in a circumferential direction; a dovetail groove which is provided with the small outer end and the big inner end is formed between two adjacent dovetail bodies and the dovetail groove is internally provided with a magnetic steel body; and the motor rotor body is characterized in that: the dovetail bodies are provided with slot bodies which can be used for eliminating the gap between the magnetic steel body and the dovetail bodies so as to fix the magnetic steel body into the dovetail groove when the slot bodies are expanded under the effects of external forces. The motor rotor body provided by the invention has the advantages of small abnormal sounds and noises, strong deformation resistance, high mechanical strength, long service life and the like.
Description
Technical field
The invention belongs to technical field of motors, especially relate to a kind of motor rotor.
Background technology
Stator and rotor are two large main parts of motor, and the rotor of motor is that some rotor punchings are formed by stacking, at present conventional motor, its stator adopts coil windings as magnetic pole mostly, and rotor arranges magnet steel as magnetic pole in outer rim, magnet steel is directly bonded on rotor conventionally.This motor is after using a period of time, and the magnet steel Yin Gaowen that is bonded in especially rotor edge in rotor high-speed rotary course can make it that obscission often occurs, and affect the normal work of motor, and useful life is short.
In order to improve this phenomenon, Chinese patent literature discloses a kind of rotor [application number: 200920120283.8; Granted publication number: CN 201466828 U], comprise steel ring and and around the magnet steel that fits in its outer surface, the outside of magnet steel is along being circumferentially arranged with at least one retainer ring.This structure, magnet steel is fixing reliable, in rotor operation process, magnet steel difficult drop-off.But still exist following deficiency: 1, the rotor of High Rotation Speed, above-mentioned scheme easily causes abnormal sound, noise 2, relative the concentrating of stress, a little less than non-deformability, main fastening structure is that retainer ring 3, mechanical strength are not high, the magnet steel technical problem such as easily come off.
Summary of the invention
The object of the invention is for the problems referred to above, provide a kind of and manufacture simply, rational in infrastructure, abnormal sound and noise are little, and non-deformability is strong, and mechanical strength is high, the motor rotor of long service life.
For achieving the above object, the present invention has adopted following technical proposal: this motor rotor, comprise the body being formed by stacking by some rotor sheets, the center of this body has the centre bore for fixed rotor axle, described body outer rim has the little and equally distributed dovetail body in a circumferential direction in large the inner, some outer ends, between two adjacent dovetail bodies, form the large dovetail groove in little the inner, outer end, magnet steel is housed in dovetail groove, it is characterized in that, thereby described dovetail body is provided with and when under external force by expansion, can makes the gap elimination between magnet steel and dovetail body make magnet steel be fixed on the cell body in dovetail groove.
Because dovetail body is provided with cell body, in the time that cell body is expanded under external force, gap between magnet steel and dovetail body is eliminated, therefore magnet steel physical efficiency is fixed in dovetail groove firmly, when motor rotor is during at High Rotation Speed, magnet steel is not prone to loosening, obscission, has improved the mechanical strength of motor rotor, has extended the useful life of motor.
Above-mentioned motor rotor, the both sides, outer end of described dovetail body have respectively the pin that stops that is buckled in the outer foot of magnet steel.
Above-mentioned motor rotor, the described medial surface that stops pin has the first arcwall face, and the outer foot of described magnet steel has the second arcwall face, and described the first arcwall face and the second arcwall face match.
Owing to stopping that the medial surface of pin has the first arcwall face, the outer foot of magnet steel has the second arcwall face, arcwall face significantly increases the contact-making surface between dovetail body and magnet steel, contact-making surface significantly increases dispersive stress better, in the time that cell body is expanded under external force, make dovetail body and magnet steel laminating closely, the first arcwall face and the second arcwall face match, the pin that stops now is also closely buckled in the outer foot of magnet steel, magnet steel is fixed in dovetail groove firmly, when motor rotor is during at High Rotation Speed, be difficult for causing the dovetail body deformability in rotor block High Rotation Speed process, magnet steel is also substantially without rocking, abnormal sound and the noise of motor significantly reduce.
As another kind of scheme, above-mentioned motor rotor, the described medial surface that stops pin has the first inclined-plane, and the outer foot of described magnet steel has the second inclined-plane, and described the first inclined-plane and the second inclined-plane match.
Owing to stopping that the medial surface of pin has the first inclined-plane, the outer foot of magnet steel has the second inclined-plane, inclined-plane significantly increases the contact-making surface between dovetail body and magnet steel, contact-making surface significantly increases dispersive stress better, in the time that cell body is expanded under external force, make dovetail body and magnet steel laminating closely, the first inclined-plane and the second inclined-plane match, the pin that stops now is also closely buckled in the outer foot of magnet steel, magnet steel is fixed in dovetail groove firmly, when motor rotor is during at High Rotation Speed, be difficult for causing the dovetail body deformability in rotor block High Rotation Speed process, magnet steel is also substantially without rocking, abnormal sound and the noise of motor significantly reduce.
Above-mentioned motor rotor, has the 3rd arcwall face between described dovetail body and body.
Above-mentioned motor rotor, in described magnet steel, circular arc and external arc are concentric circles, described magnet steel is a watt shape.Owing to adopting concentric circles watt shape structure, reduce production cost, improve utilance and production efficiency.
Above-mentioned motor rotor, is provided with binding agent between described magnet steel and dovetail groove.Described dovetail groove bottom is provided with groove, in described groove, is provided with binding agent.Groove can hold more adhesive, by the adhesive effect of binding agent, makes more firm being bonded in dovetail groove of magnet steel.
Above-mentioned motor rotor, described centre bore is provided with positioning strip breach one to one on some and armature spindle, and has at least the shape of a breach different from all the other notch geometries.Because wherein a breach is different from other notch geometries, can make that armature spindle is fast correct completes assembling with motor rotor, improve operating efficiency.
Above-mentioned motor rotor, between described dovetail groove and centre bore, circumferencial direction is uniformly distributed some disconnected manholes each other.Manhole can play guiding and inhibitory action to the distribution of the magnetic line of force and trend, form a closed loop magnetic field, and the gas in motor body completes and the circulation of ambient atmos by manhole, reach the object of cooling itself, also reduce the temperature of motor simultaneously, overcome Yin Gaowen and technical difficulty that magnet steel is come off.
Above-mentioned motor rotor, the outer surface of described magnet steel with stop that the outer surface of pin is positioned on same circumference.
Compared with prior art, the advantage of this motor rotor is: 1, owing to adopting cell body, in the time that cell body is expanded under external force, gap between magnet steel and dovetail body is eliminated, make magnet steel not be prone to loosening, obscission, improve the mechanical strength of motor rotor, extended the useful life of motor.2, owing to adopting arcwall face and inclined-plane, the contact-making surface between dovetail body and magnet steel significantly increases, and contact-making surface significantly increases and disperseed better stress, and non-deformability is strong, also reduce motor at work simultaneously abnormal sound and noise.3, owing to adopting manhole, the gas in motor body completes and the circulation of ambient atmos by manhole, reaches the object of cooling itself, has also reduced the temperature of motor simultaneously.
Accompanying drawing explanation
Fig. 1 is embodiment mono-structural representation provided by the invention.
Fig. 2 is embodiment bis-structural representations provided by the invention.
Fig. 3 is local structure for amplifying schematic diagram provided by the invention.
In figure, rotor sheet 1, body 2, centre bore 21, dovetail body 22, dovetail groove 23, magnet steel 24, gap 25, cell body 221, stop pin 222, the first arcwall face 222a, the second arcwall face 24a, the first inclined-plane 222b, the second inclined-plane 24b, the 3rd arcwall face 26, interior circular arc 24c, external arc 24d, groove 23a, breach 21a, manhole 27.
Embodiment
Be below the specific embodiment by reference to the accompanying drawings of invention, technical scheme of the present invention is further described, but the present invention be not limited to these embodiment.
Embodiment mono-
As Fig. 1, shown in 3, this motor rotor, comprise the body 2 being formed by stacking by some rotor sheets 1, the center of this body 2 has the centre bore 21 for fixed rotor axle, there is the little and equally distributed dovetail body 22 in a circumferential direction in large the inner, some outer ends in body 2 outer rims, between two adjacent dovetail bodies 22, form the large dovetail groove 23 in little the inner, outer end, magnet steel 24 is housed in dovetail groove 23, thereby on dovetail body 22, being provided with when being made gap 25 between magnet steel 24 and dovetail body 22 eliminate by when expansion under external force makes magnet steel 24 be fixed on the cell body 221 in dovetail groove 23.Have respectively in the both sides, outer end of dovetail body 22 be buckled in magnet steel 24 outer foots stop pin 222.The medial surface that stops pin 222 has the first arcwall face 222a, and the outer foot of magnet steel 24 has the second arcwall face 24a, and above-mentioned the first arcwall face 222a and the second arcwall face 24a match.Between dovetail body 22 and body 2, there is the 3rd arcwall face 26.
In the present embodiment, owing to stopping that the medial surface of pin 222 has the first arcwall face 222a, the outer foot of magnet steel has the second arcwall face 24a, arcwall face significantly increases the contact-making surface between dovetail body 22 and magnet steel 24, contact-making surface significantly increases dispersive stress better, in the time that cell body 221 is expanded under external force, make dovetail body 22 and magnet steel 24 laminatings closely, the first arcwall face 222a and the second arcwall face 24a match, the pin 222 that stops now is also closely buckled in the outer foot of magnet steel 24, magnet steel 24 is fixed in dovetail groove 23 firmly, it is difficult for loosening, come off.
Interior circular arc 24c and the external arc 24d of magnet steel 24 are concentric circles, and this magnet steel 24 is a watt shape.Between magnet steel 24 and dovetail groove 23, be provided with binding agent; Be provided with groove 23a in dovetail groove 23 bottoms, in groove 23a, be provided with binding agent.On centre bore 21, be provided with positioning strip breach 21a one to one on some and armature spindle, and have at least the shape of a breach 21a different from all the other breach 21a shapes.On body 2, be provided with some equally distributed manholes 27 in a circumferential direction.The outer surface of magnet steel 24 with stop that the outer surface of pin 222 is positioned on same circumference.
Embodiment bis-
As shown in Figure 2,3, stop that the medial surface of pin 222 has the first inclined-plane 222b, the outer foot of magnet steel 24 has the second inclined-plane 24b, and above-mentioned the first inclined-plane 222b and the second inclined-plane 24b match.In the present embodiment, owing to stopping that the medial surface of pin 222 has the first inclined-plane 222b, the outer foot of magnet steel has the second inclined-plane 24b, inclined-plane face significantly increases the contact-making surface between dovetail body 22 and magnet steel 24, contact-making surface significantly increases dispersive stress better, in the time that cell body 221 is expanded under external force, make dovetail body 22 and magnet steel 24 laminatings closely, the first inclined-plane 222b and the second inclined-plane 24b match, the pin 222 that stops now is also closely buckled in the outer foot of magnet steel 24, magnet steel 24 is fixed in dovetail groove 23 firmly, it is difficult for loosening, come off.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various modifications or supplement or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although more used rotor sheet 1, body 2, centre bore 21, dovetail body 22, dovetail groove 23, magnet steel 24, gap 25, cell body 221 herein, stopped the terms such as pin 222, the first arcwall face 222a, the second arcwall face 24a, the first inclined-plane 222b, the second inclined-plane 24b, the 3rd arcwall face 26, interior circular arc 24c, external arc 24d, groove 23a, breach 21a, manhole 27, do not got rid of the possibility that uses other term.Use these terms to be only used to describe more easily and explain essence of the present invention; They are construed to any additional restriction is all contrary with spirit of the present invention.
Claims (3)
1. a motor rotor, comprise the body (2) being formed by stacking by some rotor sheets (1), the center of this body (2) has the centre bore (21) for fixed rotor axle, described body (2) outer rim has the little and equally distributed dovetail body (22) in a circumferential direction in large the inner, some outer ends, between adjacent two dovetail bodies (22), form the large dovetail groove (23) in little the inner, outer end, magnet steel (24) is housed in dovetail groove (23), it is characterized in that, described dovetail body (22) is provided with and when under external force by expansion, can makes the gap (25) between magnet steel (24) and dovetail body (22) thereby eliminate to make magnet steel (24) be fixed on the cell body (221) in dovetail groove (23), the both sides, outer end of described dovetail body (22) have be respectively buckled in the outer foot of magnet steel (24) stop pin (222), between described magnet steel (24) and dovetail groove (23), be provided with binding agent, described dovetail groove (23) bottom is provided with groove (23a), in described groove (23a), is provided with binding agent, described centre bore (21) is provided with positioning strip breach (21a) one to one on some and armature spindle, and has at least the shape of a breach (21a) different from all the other breach (21a) shape, the described medial surface that stops pin (222) has the first arcwall face (222a), and the described outer foot of magnet steel (24) has the second arcwall face (24a), and described the first arcwall face (222a) matches with the second arcwall face (24a), the interior circular arc (24c) of described magnet steel (24) is concentric circles with external arc (24d), and described magnet steel (24) is a watt shape, the outer surface of described magnet steel (24) with stop that the outer surface of pin (222) is positioned on same circumference.
2. motor rotor according to claim 1, is characterized in that, has the 3rd arcwall face (26) between described dovetail body (22) and body (2).
3. motor rotor according to claim 1 and 2, is characterized in that, described body (2) is provided with some equally distributed manholes in a circumferential direction (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110383429.XA CN102412645B (en) | 2011-11-15 | 2011-11-15 | Motor rotor body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110383429.XA CN102412645B (en) | 2011-11-15 | 2011-11-15 | Motor rotor body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102412645A CN102412645A (en) | 2012-04-11 |
| CN102412645B true CN102412645B (en) | 2014-05-21 |
Family
ID=45914562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110383429.XA Expired - Fee Related CN102412645B (en) | 2011-11-15 | 2011-11-15 | Motor rotor body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102412645B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022045985A1 (en) * | 2020-08-31 | 2022-03-03 | Domel d.o.o. | Rotor with permanent magnets as part of electronically commutated electric motor |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102710046A (en) * | 2012-06-04 | 2012-10-03 | 陈强 | Rotor of AC permanent magnet generator rotor |
| CN103501066A (en) * | 2013-09-23 | 2014-01-08 | 徐州天擎机电有限公司 | Motor rotor special for electric tricycle |
| CN104333160A (en) * | 2014-11-07 | 2015-02-04 | 浙江众邦机电科技有限公司 | Motor rotor |
| CN106059146A (en) * | 2016-07-25 | 2016-10-26 | 珠海格力节能环保制冷技术研究中心有限公司 | Magnetic tile, motor rotor and motor |
| TWI613878B (en) * | 2016-10-28 | 2018-02-01 | 財團法人工業技術研究院 | Rotor for permanent magnet and rotation assembly for permanent magnet |
| CN107425685B (en) * | 2017-06-30 | 2023-07-14 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor and compressor |
| CN107994705A (en) * | 2018-01-20 | 2018-05-04 | 营口万意达智能装备科技有限公司 | A kind of rotor magnetic steel stent |
| CN113315281B (en) * | 2020-02-27 | 2022-11-08 | 盾安环境技术有限公司 | Rotor punching sheet, rotor assembly and motor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201008107Y (en) * | 2007-02-14 | 2008-01-16 | 蔡国法 | Rotor for electric machine |
| CN201219227Y (en) * | 2008-07-30 | 2009-04-08 | 无锡东元电机有限公司 | Permanent magnet synchronous machine rotor |
| CN101425709A (en) * | 2008-08-11 | 2009-05-06 | 隆鑫工业有限公司 | Permanent magnet generator rotor |
| CN201294414Y (en) * | 2008-11-10 | 2009-08-19 | 陈向阳 | Permanent magnet generator rotor |
| CN202309286U (en) * | 2011-11-15 | 2012-07-04 | 颜东红 | Motor rotor |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01189141A (en) * | 1988-01-25 | 1989-07-28 | Nec Corp | Semiconductor device |
| GB2217924B (en) * | 1988-04-25 | 1992-10-07 | Matsushita Electric Works Ltd | Permanent magnet rotor |
| JPH1189141A (en) * | 1997-09-09 | 1999-03-30 | Mitsubishi Electric Corp | Permanent magnetic rotor and its manufacture |
| JP2001057747A (en) * | 1999-08-12 | 2001-02-27 | Sankyo Seiki Mfg Co Ltd | Multilayer core of motor and its manufacturing method, and the motor |
| JP5231082B2 (en) * | 2008-05-09 | 2013-07-10 | 東芝産業機器製造株式会社 | Rotating electrical machine rotor |
| CN102142724A (en) * | 2010-02-01 | 2011-08-03 | 天津市松正电动科技有限公司 | Novel rotor sheet structure with adhesive storage slot |
-
2011
- 2011-11-15 CN CN201110383429.XA patent/CN102412645B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201008107Y (en) * | 2007-02-14 | 2008-01-16 | 蔡国法 | Rotor for electric machine |
| CN201219227Y (en) * | 2008-07-30 | 2009-04-08 | 无锡东元电机有限公司 | Permanent magnet synchronous machine rotor |
| CN101425709A (en) * | 2008-08-11 | 2009-05-06 | 隆鑫工业有限公司 | Permanent magnet generator rotor |
| CN201294414Y (en) * | 2008-11-10 | 2009-08-19 | 陈向阳 | Permanent magnet generator rotor |
| CN202309286U (en) * | 2011-11-15 | 2012-07-04 | 颜东红 | Motor rotor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022045985A1 (en) * | 2020-08-31 | 2022-03-03 | Domel d.o.o. | Rotor with permanent magnets as part of electronically commutated electric motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102412645A (en) | 2012-04-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102412645B (en) | Motor rotor body | |
| CN102611266B (en) | The manufacture method of washing machine motor, motor for dryer, motor and rotor | |
| US9531222B2 (en) | Stator core having convex protruding portion coinciding with adjacent coils | |
| CN1901334B (en) | Brushless synchronous machine energized by permanent magnets with embedded magnets and with trapezoidal electromagnetic force characteristic | |
| EP2139093A2 (en) | Permanent-magnet type electric rotating machine | |
| JP5677584B2 (en) | Rotor, compressor and refrigeration air conditioner for embedded permanent magnet motor | |
| US20130221787A1 (en) | Spring element for mechanically fixing magnets in a rotor | |
| US8760025B2 (en) | Interior permanent magnet machine having off axis centered arc geometry | |
| JP2009540787A (en) | High precision motor and machining and assembly method thereof | |
| US9819242B2 (en) | Bobbin and rotor of wound rotor synchronous motor using the same | |
| CN102593980A (en) | Rotor for rotary electric machine | |
| CN107852045A (en) | Electric rotating motivation | |
| JP6535452B2 (en) | Radial magnetic bearing and manufacturing method | |
| WO2021253710A1 (en) | Rotor iron core and motor | |
| WO2016002174A1 (en) | Electric motor | |
| CN202309286U (en) | Motor rotor | |
| JP5674962B2 (en) | Permanent magnet embedded motor | |
| CN103840586B (en) | Permanent-magnetic outer rotor wheel hub motor | |
| JP2021083223A (en) | Rotor structure of permanent magnet type motor | |
| CN102545437B (en) | High-intensity motor rotor body | |
| CN202651940U (en) | Split type rotor frame | |
| CN202405895U (en) | Outer rotor permanent magnet motor rotor structure | |
| CN103354396A (en) | Motor rotor | |
| CN203104142U (en) | Stator core for motor | |
| JP2015080336A (en) | Magnet motor and washing machine including the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: PUJIANG HEXIN ELECTRIC TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: YAN DONGHONG Effective date: 20140414 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 311253 HANGZHOU, ZHEJIANG PROVINCE TO: 322200 JINHUA, ZHEJIANG PROVINCE |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20140414 Address after: 322200, 569, Asia Pacific Avenue, Pujiang County, Jinhua, Zhejiang Applicant after: YAN DONGHONG Address before: 311253, Xiaoshan District, Hangzhou City, Zhejiang province evolution town inch village under the village Applicant before: Yan Donghong |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140521 Termination date: 20141115 |
|
| EXPY | Termination of patent right or utility model |