CN203416065U - Heat-radiating motor rotor - Google Patents
Heat-radiating motor rotor Download PDFInfo
- Publication number
- CN203416065U CN203416065U CN201320474317.XU CN201320474317U CN203416065U CN 203416065 U CN203416065 U CN 203416065U CN 201320474317 U CN201320474317 U CN 201320474317U CN 203416065 U CN203416065 U CN 203416065U
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- CN
- China
- Prior art keywords
- rotor
- protective sleeve
- radiating
- permanent magnets
- motor rotor
- 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
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Abstract
The utility model relates to a heat-radiating motor rotor which comprises a rotor body, multiple permanent magnets and a protective sleeve with multiple projections. Multiple radiating holes are formed in the rotor body, the permanent magnets are uniformly mounted on the outer periphery of the rotor body, the protective sleeve is mounted at the outer surfaces the permanent magnets, and each projection matches the gap between every two adjacent permanent magnets. According to the heat-radiating motor rotor, the protective sleeve is additionally arranged at the outer surfaces the permanent magnets of the rotor, thereby effectively preventing the permanent magnets from falling off due to a too large centrifugal force in the rotation process; radiating blocks are arranged on the protective sleeve to enhance the heat radiation effect of the rotor; and the heat-radiating motor rotor also has the advantages including simple structure and low cost.
Description
Technical field
The utility model relates to a kind of motor accessory, in particular, and particularly a kind of radiating motor rotor.
Background technology
Stator and rotor are two large main parts of motor, current conventional motor, and its stator great majority adopt coil windings as magnetic pole, and rotor arranges permanent magnet in outer rim and is used as magnetic pole, permanent magnet is directly bonded on rotor conventionally.Especially radiating motor, permanent magnet generally all adopts segmented, disperses to be fixed on rotor; this motor in use for some time; in the High Rotation Speed process of rotor, often can there is the phenomenon that rotor surface permanent magnet comes off, affect the normal operation of motor.
Utility model content
In order to overcome the caducous technical problem of prior art rotor surface magnet, the purpose of this utility model is to provide a kind of radiating motor rotor.
The technical scheme that the utility model adopts is: a kind of radiating motor rotor; comprise the rotor matrix that has a plurality of louvres; on circumference on described rotor matrix lateral surface, a plurality of permanent magnets are installed uniformly; described permanent magnet outer surface is provided with a protective sleeve with a plurality of projections, and described projection matches with the gap between adjacent two permanent magnets.
Further, the bilateral symmetry of described protective sleeve on motor axial direction is distributed with at least one pair of radiating block, and the top of described radiating block is a little more than the outer wall of described protective sleeve.
Further, the quantity of described radiating block is 18, and symmetrical being along the circumferential direction evenly distributed.
Further, described protective sleeve is insulator.
With respect to radiating motor rotor of the prior art; the beneficial effects of the utility model are: by increasing protective sleeve at epitrochanterian permanent magnet outer surface; effectively prevented that permanent magnet from causing the phenomenon coming off in rotation process because centrifugal force is excessive; simultaneously; radiating block is set on protective sleeve; increased the radiating effect of rotor, have simple in structure, the advantage such as cost is lower.
Accompanying drawing explanation
Fig. 1. be the structural representation of the radiating motor rotor described in the utility model embodiment.
Description of reference numerals: 1, rotor matrix, 2, louvre, 3, permanent magnet, 4, radiating block, 5, protective sleeve.
Embodiment
Below in conjunction with drawings and embodiments, the utility model is described in further detail.
Consult shown in Fig. 1; the utility model provides a kind of radiating motor rotor; comprise the rotor matrix 1 that has a plurality of louvres 2; a plurality of permanent magnets 3 are installed on the circumference on rotor matrix 1 lateral surface uniformly; permanent magnet 3 outer surfaces are provided with a protective sleeve 5 with a plurality of projections, and this projection matches with the gap between adjacent two permanent magnets 3.In the present embodiment; the outer wall of this protective sleeve 5 is circular arc, and concentric with rotor matrix 1, the protruding distribution situation on protective sleeve 5 inwalls with permanent magnet the distribution situation on rotor matrix corresponding; not necessarily uniform, can be applicable to the requirement under different occasions like this.Preferably, this protective sleeve 5 is insulator, because electric conductor can produce a large amount of eddy current loss conventionally, adopts insulating material can reduce eddy current loss.Meanwhile, insulating material heat conductivility is poor, and the heat that can effectively stop protective sleeve to produce when High Rotation Speed is directly passed to permanent magnet 3, avoids the heat radiation difficulty that the rapid intensification of permanent magnet 3 causes to increase.
Preferably, the bilateral symmetry of protective sleeve 5 on motor axial direction is distributed with at least one pair of radiating block 4, and the top of radiating block 4 is a little more than the outer wall of protective sleeve 5.In the present embodiment, the quantity of radiating block 4 is 18, and symmetrical being along the circumferential direction evenly distributed.This radiating block 4 is fixed on the outer surface of permanent magnet 3.The effect of radiating block 4 is: the position of limiting protecting cover 5, prevents its movement in rotor axial direction, in addition; because the height of radiating block 4 is higher, when high speed rotating, can play the flabellum effect of similar fan; can strengthen the gas communication in motor, improve radiating efficiency.
Foregoing detailed description is only exemplary description, and those skilled in the art in the situation that do not depart from the scope and spirit that the utility model is protected, can design various execution modes according to different actual needs.
Claims (4)
1. a radiating motor rotor; comprise the rotor matrix (1) that has a plurality of louvres (2); on circumference on described rotor matrix (1) lateral surface, a plurality of permanent magnets (3) are installed uniformly; it is characterized in that: described permanent magnet (3) outer surface is provided with a protective sleeve with a plurality of projections (5), described projection matches with the gap between adjacent two permanent magnets (3).
2. radiating motor rotor according to claim 1; it is characterized in that: the bilateral symmetry of described protective sleeve (5) on motor axial direction is distributed with at least one pair of radiating block (4), and the top of described radiating block (4) is a little more than the outer wall of described protective sleeve (5).
3. radiating motor rotor according to claim 2, is characterized in that: the quantity of described radiating block (4) is 18, and symmetrical being along the circumferential direction evenly distributed.
4. radiating motor rotor according to claim 3, is characterized in that: described protective sleeve (5) is insulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320474317.XU CN203416065U (en) | 2013-07-27 | 2013-07-27 | Heat-radiating motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320474317.XU CN203416065U (en) | 2013-07-27 | 2013-07-27 | Heat-radiating motor rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203416065U true CN203416065U (en) | 2014-01-29 |
Family
ID=49978923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320474317.XU Expired - Fee Related CN203416065U (en) | 2013-07-27 | 2013-07-27 | Heat-radiating motor rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203416065U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104638788A (en) * | 2015-02-04 | 2015-05-20 | 浙江大学 | Rotor sheath of high-speed permanent magnet motor |
| CN104917318A (en) * | 2015-06-16 | 2015-09-16 | 哈尔滨工业大学 | Sheath of high-speed permanent magnet motor rotor |
| WO2018201565A1 (en) * | 2017-05-05 | 2018-11-08 | 杭州欧镭激光技术有限公司 | Laser detection device having heat dissipation structure |
-
2013
- 2013-07-27 CN CN201320474317.XU patent/CN203416065U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104638788A (en) * | 2015-02-04 | 2015-05-20 | 浙江大学 | Rotor sheath of high-speed permanent magnet motor |
| CN104917318A (en) * | 2015-06-16 | 2015-09-16 | 哈尔滨工业大学 | Sheath of high-speed permanent magnet motor rotor |
| WO2018201565A1 (en) * | 2017-05-05 | 2018-11-08 | 杭州欧镭激光技术有限公司 | Laser detection device having heat dissipation structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20140129 Termination date: 20150727 |
|
| EXPY | Termination of patent right or utility model |