CN102891552A - Built-in permanent magnet motor rotor punching and built-in permanent magnet motor rotor - Google Patents
Built-in permanent magnet motor rotor punching and built-in permanent magnet motor rotor Download PDFInfo
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- CN102891552A CN102891552A CN2012104194543A CN201210419454A CN102891552A CN 102891552 A CN102891552 A CN 102891552A CN 2012104194543 A CN2012104194543 A CN 2012104194543A CN 201210419454 A CN201210419454 A CN 201210419454A CN 102891552 A CN102891552 A CN 102891552A
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- punching
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Abstract
The invention discloses a built-in permanent magnet motor rotor punching and a built-in permanent magnet motor rotor. The built-in permanent magnet motor rotor punching comprises a punching body, wherein the punching body comprises an inner-layer punching sheet which is of an overall circular shape; a plurality of notches are formed on the edge of the inner-layer punching sheet along the circumferential direction at equal intervals; a plurality of outer-layer punching sheets which are fixedly matched with the notches are arranged; gaps for fixing a permanent magnet are reserved between the outer-layer punching sheets and the inner-layer punching sheet; and the permanent magnet is arranged in a gap or a permanent magnet slot formed between the notches of the inner-layer punching sheet and the outer-layer punching sheets and is used for limiting movement of the permanent magnet. The inner-layer and outer-layer punching sheets are laminated and are fixed on end covers at two sides through bolts, so that the positions of the punching sheets are fixed; and moreover, a magnetic isolation magnetic bridge structure of the traditional motor punching sheet is avoided, and leakage flux at a magnetic isolation magnetic bridge is effectively avoided, so that an air-gap field generated by permanent magnets with the same amount has higher intensity, the performance of the motor is improved, the permanent magnet materials are saved, and the cost is reduced.
Description
Technical field
The present invention relates to a kind of rotor punching, more precisely, relate to a kind of interior permanent magnet machines rotor punching, the invention still further relates to a kind of interior permanent magnet machines rotor, belong to the magneto technical field.
Background technology
In the existing interior permanent magnet machines, rotor punching generally adopts integral type, in the punching with permanent magnet trough with every the magnetic magnetic bridge.After punching laminates, permanent magnet is inserted in the permanent magnet trough, the rotor that forms like this is owing to have every the magnetic magnetic bridge, so that the magnetic line of force part that permanent magnet produces is passed through in rotor every magnetic magnetic bridge closure, the magnetic line of force does not pass air gap and arrives stator.Thus, the magnetomotive force that permanent magnet produces has sub-fraction because consume in rotor punching every the existence of magnetic magnetic bridge, and the energy that arrives in the motor gas-gap has reduced with regard to corresponding, and therefore the utilance of permanent magnet also reduces.In permanent magnetic material expensive today, this is very disadvantageous for the cost of control motor.
Summary of the invention
The present invention is in order to solve problems of the prior art, a kind of interior permanent magnet machines rotor punching is provided, it is simple in structure, the motor stamping of this structure has also been avoided the leakage field phenomenon of traditional built-in motor punching because causing every the magnetic magnetic bridge effectively when possessing traditional integration stamped sheet advantage.
For achieving the above object, technical scheme of the present invention is: a kind of interior permanent magnet machines rotor punching, comprise the punching body, described punching body comprises whole rounded internal layer punching, edge in described internal layer punching is provided with a plurality of breach equidistantly along its circumferencial direction, also be provided with a plurality of and the outer punching breach secure fit, leave the gap for fixed permanent magnet between described outer punching and the internal layer punching.
Preferably, the outside of described outer punching is circular-arc, and after the internal layer punching cooperated, it was the circular-arc outside and drops on the circumference in the internal layer punching outside.
Preferably, the sidewall of described internal layer punching breach is provided with for the spacing preiection that snaps in permanent magnet.
Preferably, the inboard of described outer punching is provided with for the spacing preiection that snaps in permanent magnet.
Preferably, leave gap for fixed permanent magnet between described outer punching and the internal layer punching and be yi word pattern or V-type, W type, U-shaped.
The present invention also provides a kind of interior permanent magnet machines rotor, comprise a plurality of punching bodies, described punching body comprises whole rounded internal layer punching, edge in described internal layer punching is provided with a plurality of breach equidistantly along its circumferencial direction, also be provided with a plurality of and the outer punching breach secure fit, leave the gap for fixed permanent magnet between described outer punching and the internal layer punching.
Preferably, also comprise shell, described internal layer punching and outer punching respectively arrange a plurality of screws be used to being fixed on the shell.
Preferably, described shell comprises upper end cover and bottom end cover.
A kind of interior permanent magnet machines rotor punching of the present invention and interior permanent magnet machines rotor, motor rotor punching sheet adopts split-type structural, be divided into internal layer punching and outer punching two parts, permanent magnet is placed in the gap or permanent magnet trough that forms between the breach of internal layer punching and the outer punching, in order to limit the movement of permanent magnet.Be bolted on the end cap on both sides after internal layer and outer punching laminate, thereby the position that guarantees punching is fixed.Guaranteed that not only permanent magnet can be fixed in the punching of rotor, but also avoided the conventional motors punching every magnetic magnetic bridge structure, effectively avoided the leakage field every magnetic magnetic bridge place, thereby so that the air-gap field intensity that the permanent magnet of same consumption produces is larger, be conducive to improve motor performance, save permanent magnetic material, reduce cost.
Description of drawings
Fig. 1 shows the structural representation of rotor punching of the present invention.
Fig. 2 shows the structural representation of internal layer punching among Fig. 1.
Fig. 3 shows the structural representation of Fig. 1 ectomesoderm.
Structural representation when Fig. 4 shows internal layer punching and outer punching and is combined together.
Fig. 5 shows the structural representation of another execution mode of rotor punching of the present invention.
Fig. 6 shows the structural representation of rotor of the present invention.
Fig. 7 is the Flux distribution map of punching among Fig. 1.
Fig. 8 is the magnetic field distribution figure of punching among Fig. 1.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described further.
With reference to figure 1-Fig. 4, a kind of interior permanent magnet machines rotor punching of the present invention, adopt split-type structural, comprise punching body 1, described punching body 1 comprises whole rounded internal layer punching 11, it adopts material known in the art to be made, such as silicon steel sheet etc., the center of internal layer punching 11 is provided with axis hole, penetrates so that the rotor driven punching is rotated for rotating shaft, the axis hole structure belongs to technology known in the art, so less than making a mark at accompanying drawing and illustrating.Edge in described internal layer punching 11 is provided with a plurality of breach 14 equidistantly along its circumferencial direction, as shown in Figure 2, the sidewall of internal layer punching 11 is similar tooth mountain shape or jagged projection along its circumferencial direction for example distributing equidistantly 8 breach 14 or notch between adjacent two breach 14.
Punching body of the present invention also is provided with a plurality of and outer punchings 12 breach 14 secure fit, it can adopt the material the same with the internal layer punching to make, the number of outer punching 12 and breach 14 is decided by the number of poles of motor, and outer punching 12 numbers equal the number of poles of motor.Leave gap 141 or permanent magnet trough for fixed permanent magnet between described outer punching 12 and the internal layer punching 11, the shape of this gap 141 or permanent magnet trough is determined by the shape of permanent magnet.As shown in Figure 4, the structure that the fixed form of internal layer punching and outer punching can adopt mechanical field to commonly use such as each other engaging etc., no longer specifies at this.Described gap 141 is formed by the sidewall of breach 14 and the sidewall of outer punching 12, permanent magnet 13 is snapped in the gap 141, for firm permanent magnet 13 better, spacing preiection 140 can be set at the sidewall of breach 14, equally, also spacing preiection can be set accordingly on the sidewall of outer punching 12.The fluted body curve of breach 14, the permanent magnet trough that forms with the sidewall of outer punching plays the effect that restriction permanent magnet 13 moves, and can prevent motor under the situation that runs up, and permanent magnet 13 is owing to centrifugal force is moved.
In view of the characteristics of rotor punching self and the function of performance thereof, as far as possible so that rotor punching integral body is circular, for the rotor of not doing the Surface Sinusoidal processing, after guaranteeing that permanent magnet 13 inserts, the arc section in the outside of outer punching 12 and the arc section of internal layer punching 11 drop on the same circle, be outer punching 12 with after internal layer punching 11 cooperates, so that the arc section in outer punching 12 outsides drops on the circumference in internal layer punching 11 outsides.
With reference to figure 1, as required, can be arranged to V-type with leaving for gap 141 or the permanent magnet trough of fixed permanent magnet 13 between outer punching 12 and the internal layer punching 11, at this moment, described outer punching 13 is fan-shaped, its circular-arc outside is dropped on the circumference of internal layer punching, and the breach 14 of the both sides that it is linearly and internal layer punching forms the V-shaped gap 141 or the permanent magnet trough that are used for placing permanent magnet 13, places two each other permanent magnets 13 of V-shaped distribution.Simultaneously, with reference to figure 5, it is yi word pattern also can to make gap 141 or permanent magnet trough, can also be arranged to as required W type, U-shaped etc., no longer specifies at this.Utilize existing technology that the magnetic field state analysis is carried out in the punching of v-shaped structure, its result such as Fig. 7, shown in Figure 8, Fig. 7 are the Flux distribution map, and rotor two permanent magnet adjacents do not have magnetic line of force loop, reduce rotor leakage; Fig. 8 is the close distribution of stator and rotor cores magnetic, and the supersaturation zone does not appear in the close distribution uniform of magnetic.
With reference to figure 6, the present invention also provides a kind of interior permanent magnet machines rotor, adopt the above-mentioned rotor punching 1 of many groups, one shell is set simultaneously, for example a upper end cover 2 and bottom end cover 3, described internal layer punching 11 and outer punching 12 arrange a plurality of screws 15,120, by bolt many group rotors punching 1 are stacked and are fixed on upper end cover 2 times and the bottom end cover 3.
A kind of interior permanent magnet machines rotor punching of the present invention and interior permanent magnet machines rotor, motor rotor punching sheet adopts split-type structural, be divided into internal layer punching and outer punching two parts, permanent magnet is placed in the gap or permanent magnet trough that forms between the breach of internal layer punching and the outer punching, in order to limit the movement of permanent magnet.Be bolted on the end cap on both sides after internal layer and outer punching laminate, thereby the position that guarantees punching is fixed.Guaranteed that not only permanent magnet can be fixed in the punching of rotor, but also avoided the conventional motors punching every magnetic magnetic bridge structure, effectively avoided the leakage field every magnetic magnetic bridge place, thereby so that the air-gap field intensity that the permanent magnet of same consumption produces is larger, be conducive to improve motor performance, save permanent magnetic material, reduce cost.
The present invention is by preferred embodiment having carried out detailed explanation.Yet, by to the studying carefully of preamble, to the variation of each execution mode with to increase for one of ordinary skill in the art be apparent.Being intended that all these variations and increasing of applicant all dropped in the protection range of claim of the present invention.
Similar numbering refers to similar element in the whole text.For the purpose of clear, the situation that some line, layer, element, parts or feature are amplified may be arranged in the accompanying drawings.
Term used herein is only for to be illustrated specific embodiment, and it is not to be intended to limit the invention.Unless otherwise defined, all terms used herein (comprising technical term and scientific terminology) are all identical with one of ordinary skill in the art's of the present invention understanding.Also must be clear and definite be, except clear and definite definition is arranged in this article, such as in the dictionary usually the term of definition should be interpreted as in the linguistic context of this specification and correlation technique, can having the consistent meaning, and the idealized or undue formalization that should not explain.Known function or structure are in briefly and clearly consider or repeat no more.
Claims (8)
1. interior permanent magnet machines rotor punching, comprise the punching body, it is characterized in that: described punching body comprises whole rounded internal layer punching, edge in described internal layer punching is provided with a plurality of breach equidistantly along its circumferencial direction, also be provided with a plurality of and the outer punching breach secure fit, leave the gap for fixed permanent magnet between described outer punching and the internal layer punching.
2. rotor punching according to claim 1, it is characterized in that: the outside of described outer punching is circular-arc, and after the internal layer punching cooperated, it was the circular-arc outside and drops on the circumference in the internal layer punching outside.
3. rotor punching according to claim 2 is characterized in that: the sidewall of described internal layer punching breach is provided with for the spacing preiection that snaps in permanent magnet.
4. rotor punching according to claim 3 is characterized in that: the inboard of described outer punching is provided with for the spacing preiection that snaps in permanent magnet.
5. rotor punching according to claim 4 is characterized in that: leave gap for fixed permanent magnet between described outer punching and the internal layer punching and be yi word pattern or V-type, W type, U-shaped.
6. interior permanent magnet machines rotor, comprise a plurality of punching bodies, it is characterized in that: described punching body comprises whole rounded internal layer punching, edge in described internal layer punching is provided with a plurality of breach equidistantly along its circumferencial direction, also be provided with a plurality of and the outer punching breach secure fit, leave the gap for fixed permanent magnet between described outer punching and the internal layer punching.
7. rotor according to claim 6, it is characterized in that: also comprise shell, described internal layer punching and outer punching respectively arrange a plurality of screws be used to being fixed on the shell.
8. rotor according to claim 7, it is characterized in that: described shell comprises upper end cover and bottom end cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104194543A CN102891552A (en) | 2012-10-26 | 2012-10-26 | Built-in permanent magnet motor rotor punching and built-in permanent magnet motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104194543A CN102891552A (en) | 2012-10-26 | 2012-10-26 | Built-in permanent magnet motor rotor punching and built-in permanent magnet motor rotor |
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| CN102891552A true CN102891552A (en) | 2013-01-23 |
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| CN2012104194543A Pending CN102891552A (en) | 2012-10-26 | 2012-10-26 | Built-in permanent magnet motor rotor punching and built-in permanent magnet motor rotor |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103683603A (en) * | 2013-12-26 | 2014-03-26 | 安徽江淮汽车股份有限公司 | Rotor silicon steel sheet structure |
| CN104767305A (en) * | 2015-04-24 | 2015-07-08 | 永济新时速电机电器有限责任公司 | Novel rotor of permanent magnet motor |
| CN106059140A (en) * | 2015-04-01 | 2016-10-26 | 丰田自动车株式会社 | Laminated rotor and manufacturing method for laminated rotor |
| CN106169823A (en) * | 2016-07-08 | 2016-11-30 | 宁波欣达电梯配件厂 | A kind of rotor sheet of permanent magnet motor assembly unit and assembled rotor |
| CN108616180A (en) * | 2018-07-23 | 2018-10-02 | 杨世国 | A kind of combination type permanent-magnet rotor |
| CN109256924A (en) * | 2018-11-27 | 2019-01-22 | 珠海格力电器股份有限公司 | Rotor core, motor and air-conditioning system |
| CN109327089A (en) * | 2018-11-27 | 2019-02-12 | 珠海格力电器股份有限公司 | Rotor, motor and air-conditioning system |
| CN109510349A (en) * | 2018-11-27 | 2019-03-22 | 珠海格力电器股份有限公司 | Punching, rotor, motor and air-conditioning system |
| CN110277845A (en) * | 2018-03-15 | 2019-09-24 | 本田技研工业株式会社 | The rotor of rotating electric machine |
| CN112821608A (en) * | 2021-01-22 | 2021-05-18 | 珠海格力电器股份有限公司 | Rotor punching sheet, rotor core, motor rotor, assembling method and motor |
| CN114362397A (en) * | 2022-02-21 | 2022-04-15 | 小米汽车科技有限公司 | Punching sheet structure, rotor assembly and motor |
Citations (3)
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| CN200969534Y (en) * | 2006-11-08 | 2007-10-31 | 常州阿尔泰动力机械有限公司 | Rare-earth magneto synchronous generator rotor |
| CN101771300A (en) * | 2008-12-29 | 2010-07-07 | 乐金电子(天津)电器有限公司 | Combined rotor structure of permanent-magnetic motor |
| CN203039447U (en) * | 2012-10-26 | 2013-07-03 | 安徽江淮汽车股份有限公司 | Built-in permanent magnet motor rotor punching sheet and built-in permanent magnet motor rotor |
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2012
- 2012-10-26 CN CN2012104194543A patent/CN102891552A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200969534Y (en) * | 2006-11-08 | 2007-10-31 | 常州阿尔泰动力机械有限公司 | Rare-earth magneto synchronous generator rotor |
| CN101771300A (en) * | 2008-12-29 | 2010-07-07 | 乐金电子(天津)电器有限公司 | Combined rotor structure of permanent-magnetic motor |
| CN203039447U (en) * | 2012-10-26 | 2013-07-03 | 安徽江淮汽车股份有限公司 | Built-in permanent magnet motor rotor punching sheet and built-in permanent magnet motor rotor |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103683603A (en) * | 2013-12-26 | 2014-03-26 | 安徽江淮汽车股份有限公司 | Rotor silicon steel sheet structure |
| CN106059140B (en) * | 2015-04-01 | 2018-09-28 | 丰田自动车株式会社 | Stacked rotor and its manufacturing method |
| CN106059140A (en) * | 2015-04-01 | 2016-10-26 | 丰田自动车株式会社 | Laminated rotor and manufacturing method for laminated rotor |
| CN104767305A (en) * | 2015-04-24 | 2015-07-08 | 永济新时速电机电器有限责任公司 | Novel rotor of permanent magnet motor |
| CN106169823B (en) * | 2016-07-08 | 2018-10-30 | 宁波欣达电梯配件厂 | A kind of rotor sheet of permanent magnet motor assembled rigid unit and assembled rotor |
| CN106169823A (en) * | 2016-07-08 | 2016-11-30 | 宁波欣达电梯配件厂 | A kind of rotor sheet of permanent magnet motor assembly unit and assembled rotor |
| CN110277845A (en) * | 2018-03-15 | 2019-09-24 | 本田技研工业株式会社 | The rotor of rotating electric machine |
| CN108616180A (en) * | 2018-07-23 | 2018-10-02 | 杨世国 | A kind of combination type permanent-magnet rotor |
| CN109256924A (en) * | 2018-11-27 | 2019-01-22 | 珠海格力电器股份有限公司 | Rotor core, motor and air-conditioning system |
| CN109327089A (en) * | 2018-11-27 | 2019-02-12 | 珠海格力电器股份有限公司 | Rotor, motor and air-conditioning system |
| CN109510349A (en) * | 2018-11-27 | 2019-03-22 | 珠海格力电器股份有限公司 | Punching, rotor, motor and air-conditioning system |
| CN112821608A (en) * | 2021-01-22 | 2021-05-18 | 珠海格力电器股份有限公司 | Rotor punching sheet, rotor core, motor rotor, assembling method and motor |
| CN112821608B (en) * | 2021-01-22 | 2022-03-25 | 珠海格力电器股份有限公司 | Rotor punching sheet, rotor core, motor rotor, assembling method and motor |
| CN114362397A (en) * | 2022-02-21 | 2022-04-15 | 小米汽车科技有限公司 | Punching sheet structure, rotor assembly and motor |
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Application publication date: 20130123 |