CN202042964U - Permanent magnetic motor rotor - Google Patents
Permanent magnetic motor rotor Download PDFInfo
- Publication number
- CN202042964U CN202042964U CN2010206710393U CN201020671039U CN202042964U CN 202042964 U CN202042964 U CN 202042964U CN 2010206710393 U CN2010206710393 U CN 2010206710393U CN 201020671039 U CN201020671039 U CN 201020671039U CN 202042964 U CN202042964 U CN 202042964U
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- CN
- China
- Prior art keywords
- rotor
- magnetizer
- holes
- hole
- rotating shaft
- 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 - Lifetime
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- Iron Core Of Rotating Electric Machines (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The utility model provides a permanent magnetic motor rotor which comprises a rotor non-magnetic conductor and a rotation shaft, wherein the rotor non-magnetic conductor is arranged around the rotation shaft, the rotation shaft is a hollow shaft which is internally provided a hollow cavity, and the hollow cavity is communicated with the outside; holes are axially arranged between the rotor non-magnetic conductor and the rotation shaft; and the rotor non-magnetic conductor is internally provided with radial holes which are communicated with the holes. The permanent magnetic motor rotor is provided with holes at the position off the central axial direction, and holes are also arranged in the middle radial direction, so that heat in the middle can be brought out and the cold air at the two sides are brought into the middle to achieve the internal self-cooling effect, therefore, the service life and the service efficiency of a motor are greatly prolonged.
Description
Technical field
The utility model relates to a kind of permanent magnet machine rotor.
Background technology
Direct current machine is on-stream, rotor and motor can produce a large amount of heat, and with the growth of the duration of runs, the rotor heat of motor internal constantly increases, the too high loss ratio for rotor of temperature is bigger, and for a long time heating also have for motor properties and running certain unfavorable.The cooling means that the heat radiation of general motor is adopted, all carry out in the motor outside, such as natural cooling, air-cooled or water-cooled commonly used, and can not effectively be delivered to shell or shell when having dust, dirt etc. to be capped when the temperature of armature, cooling effectiveness will reduce or lose efficacy, thereby causes motor overheating.
The utility model content
In order to solve existing technical problem in the background technology, the utility model proposes a kind of permanent magnet machine rotor, the position of off-center axial direction is provided with the hole, on intermediate radial, also be provided with porose, can lead out the heat of centre like this, the cold air on both sides is reached a kind of effect of inner self cool in the middle of entering, for motor life-span and service efficiency improve greatly.
Technical solution of the present utility model is: a kind of permanent magnet machine rotor, comprise rotor non-magnetizer and rotating shaft, described rotor non-magnetizer is provided with around the shaft, and its special character is: described rotating shaft is the hollow shaft that there is cavity inside, and described cavity is in communication with the outside; Be provided with porosely between described rotor non-magnetizer and the rotating shaft vertically, be provided with the radial hole that is communicated with the hole in the described rotor non-magnetizer.
Above-mentioned hole is a plurality of, is evenly distributed along the contact-making surface of non-magnetizer and rotating shaft.
Between above-mentioned rotor non-magnetizer and the winding air gap is arranged, described radial hole is communicated with air gap.
The position of permanent magnet machine rotor off-center axial direction of the present utility model is provided with the hole, on intermediate radial, also be provided with porose, like this when rotating.The air at two ends will enter direction radially along the hole of axial direction, thereby the hole by in the radial direction and being gone out by centrifugal has formed a kind of state of reverse-flow type.Will be led out the heat of centre like this, be reached a kind of effect of inner self cool in the middle of the cold air on both sides is entered.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is that the A of Fig. 1 is to view;
Embodiment
Referring to Fig. 1, Fig. 2, permanent magnet machine rotor of the present utility model, its rotor are hollow-core construction, the non-magnetizer of the rotor 2 inner cavitys 5 that form, and porose 3 in the arranged outside of cavity 5, hole 3 communicates with radial hole 1, and radial hole 1 communicates with air gap.The rotating shaft 4 of its rotor is a hollow shaft, and rotating shaft 4 is connected with rotor cavity 5 and communicates.When rotor rotation, radial hole 1 inner air enters hole 3 by the two ends of rotor loop again because the centrifugal force outward movment enters rotor and winding air gap, and hole 3 communicates with radial hole 1, forms circulation circuit; Simultaneously, rotating shaft 4 communicates with the external world with cavity 5 inner airs, and the internal rotor hot-air is replaced the external world.Thus, to two ends are directly taken the winding heat by air gap in the inner loop loop, and two ends are recycled to air gap owing to do not have winding generation heat and the end cap heat radiation is arranged with cold air, realize the inner loop heat radiation; And hollow rotating shaft communicates the internal rotor hot-air with the external world, forms the inner ventilation heat radiation, and so dual heat sinking function can improve the service efficiency and the life-span of motor greatly.
Claims (3)
1. a permanent magnet machine rotor comprises rotor non-magnetizer and rotating shaft, and described rotor non-magnetizer is provided with around the shaft, it is characterized in that: described rotating shaft is the hollow shaft that there is cavity inside, and described cavity is in communication with the outside; Be provided with porosely between described rotor non-magnetizer and the rotating shaft vertically, be provided with the radial hole that is communicated with the hole in the described rotor non-magnetizer.
2. permanent magnet machine rotor according to claim 1 is characterized in that: described hole is a plurality of, is evenly distributed along the contact-making surface of non-magnetizer and rotating shaft.
3. permanent magnet machine rotor according to claim 2 is characterized in that: between described rotor non-magnetizer and the winding air gap is arranged, described radial hole is communicated with air gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206710393U CN202042964U (en) | 2010-12-20 | 2010-12-20 | Permanent magnetic motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206710393U CN202042964U (en) | 2010-12-20 | 2010-12-20 | Permanent magnetic motor rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202042964U true CN202042964U (en) | 2011-11-16 |
Family
ID=44970389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206710393U Expired - Lifetime CN202042964U (en) | 2010-12-20 | 2010-12-20 | Permanent magnetic motor rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202042964U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102611248A (en) * | 2012-03-16 | 2012-07-25 | 赵晓东 | Permanent magnet synchronous motor cooled by two stages of heat exchangers |
| CN102868343A (en) * | 2012-09-20 | 2013-01-09 | 西安磁林电气有限公司 | Six-phase direct-current square wave permanent-magnet brushless motor |
| CN110114962A (en) * | 2017-02-14 | 2019-08-09 | 宝马股份公司 | Armature spindle and motor for motor |
| CN110492640A (en) * | 2019-07-03 | 2019-11-22 | 南京越博动力***股份有限公司 | The rotor and motor of motor |
| CN111224488A (en) * | 2020-02-28 | 2020-06-02 | 重庆文理学院 | Rotor of permanent magnet synchronous motor |
| CN112436638A (en) * | 2020-11-12 | 2021-03-02 | 江苏铁锚工具股份有限公司 | AC/DC brushless motor |
-
2010
- 2010-12-20 CN CN2010206710393U patent/CN202042964U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102611248A (en) * | 2012-03-16 | 2012-07-25 | 赵晓东 | Permanent magnet synchronous motor cooled by two stages of heat exchangers |
| CN102868343A (en) * | 2012-09-20 | 2013-01-09 | 西安磁林电气有限公司 | Six-phase direct-current square wave permanent-magnet brushless motor |
| WO2014044005A1 (en) * | 2012-09-20 | 2014-03-27 | 西安磁林电气有限公司 | Six-phase dc square-wave permanent magnet brushless motor |
| CN102868343B (en) * | 2012-09-20 | 2015-07-29 | 西安磁林电气有限公司 | Six phase direct current square wave permanent magnetic brushless electric machines |
| CN110114962A (en) * | 2017-02-14 | 2019-08-09 | 宝马股份公司 | Armature spindle and motor for motor |
| CN110114962B (en) * | 2017-02-14 | 2022-04-01 | 宝马股份公司 | Rotor shaft for an electric machine and electric machine |
| CN110492640A (en) * | 2019-07-03 | 2019-11-22 | 南京越博动力***股份有限公司 | The rotor and motor of motor |
| CN111224488A (en) * | 2020-02-28 | 2020-06-02 | 重庆文理学院 | Rotor of permanent magnet synchronous motor |
| CN112436638A (en) * | 2020-11-12 | 2021-03-02 | 江苏铁锚工具股份有限公司 | AC/DC brushless motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111116 |
|
| CX01 | Expiry of patent term |