CN207426835U - A kind of magnetic shielding structure of durface mounted permanent magnet rotor - Google Patents
A kind of magnetic shielding structure of durface mounted permanent magnet rotor Download PDFInfo
- Publication number
- CN207426835U CN207426835U CN201721430094.1U CN201721430094U CN207426835U CN 207426835 U CN207426835 U CN 207426835U CN 201721430094 U CN201721430094 U CN 201721430094U CN 207426835 U CN207426835 U CN 207426835U
- Authority
- CN
- China
- Prior art keywords
- magnet
- magnetic
- magnetic pole
- mandrel
- protective case
- 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.)
- Active
Links
Abstract
The utility model discloses a kind of magnetic shielding structures of durface mounted permanent magnet rotor, including mandrel, magnet steel and protective case, it further includes every magnet and interpolar filling block, several magnet steel mutually splice and form a magnetic pole, four magnetic poles are distributed on mandrel on the outer circle wall of mandrel, and it is formed between two adjacent magnetic poles every magnetic gap, interpolar filling block is arranged on described every in magnetic gap, one is respectively provided with every magnet at the both ends of each magnetic pole, protective case is arranged on the outer circle wall of magnetic pole, and it is interference fitted between protective case and magnetic pole and between protective case and interpolar filling block, protective case is by magnetic pole, it is positioned at every magnet and interpolar filling block on mandrel.Not only playing the role of reducing leakage field every magnet in the utility model, but also avoiding in process and assemble Model For The Bush-axle Type Parts；It can ensure the rigidity of entire mandrel.
Description
Technical field：
The utility model is related to a kind of magnetic shielding structures of durface mounted permanent magnet rotor.
Background technology：
In durface mounted permanent magnet rotor, magnet steel in interpolar except needing to completely cut off magnetic circuit, it is also necessary to prevent magnet steel brow leakage.Table
The yoke portion of mounted p-m rotor is usually undertaken by mandrel, therefore mandrel necessarily permeability magnetic material, if the material of magnet steel end is still
Using permeability magnetic material, then the end of magnet steel can there are leakage field phenomenons, the phenomenon can influence the utilization ratio of magnet steel, should avoid.
To reduce or avoiding the leakage field of magnet steel end, it will usually which in magnet steel end, design Model For The Bush-axle Type Parts are matched, axis
Cover parts use non-magnet material, then assemble protective case on surface layer.This design can be brought：
1) mating parts become more on axis, and processing and assembling is caused to become complicated；
2) mandrel of magnet steel end cannot be done slightly, this will be the rigidity of weakening rotor entirety to a certain degree.
Utility model content：
The utility model is to provide a kind of durface mounted permanent magnet rotor to solve the above-mentioned problems of the prior art
Magnetic shielding structure.
There is technical solution used by the utility model：A kind of magnetic shielding structure of durface mounted permanent magnet rotor, including mandrel, magnetic
Steel and protective case are further included every magnet and interpolar filling block, several magnet steel mutually splice and form a magnetic pole, and four magnetic poles are equal
Cloth is formed on outer circle wall of the mandrel in mandrel, and between two adjacent magnetic poles every magnetic gap, and interpolar filling block is arranged on institute
It states every in magnetic gap, being respectively provided with one at the both ends of each magnetic pole every magnet, protective case is arranged on the outer circle wall of magnetic pole, and is protected
It is interference fitted between sheath and magnetic pole and between protective case and interpolar filling block, protective case is filled out by magnetic pole, every magnet and interpolar
Block is filled to be positioned on mandrel.
Further, the circumferential wall of the mandrel is equipped with mounting groove, and magnetic pole is installed on peace every magnet and interpolar filling block
In tankage.
Further, the shape every magnet cross section is identical with the shape of magnetic pole cross section.
Further, it is described that non-magnet material is made and is made every magnet and the use of interpolar filling block.
The utility model has the advantages that：
1) not only playing the role of reducing leakage field every magnet in the utility model, but also avoiding in process and assemble shaft sleeve
Part；
2) mounting groove on mandrel is while magnetic pole is installed, and can play the role of to magnetic pole axial limiting, and magnetic pole
It is placed in every magnet in mounting groove, the mandrel positioned at magnetic pole both ends can be done slightly, it is ensured that the rigidity of entire mandrel.
Description of the drawings：
Fig. 1 is the utility model structure chart.
Fig. 2 is the utility model sectional structure chart.
Specific embodiment：
The utility model will be further described below with reference to the accompanying drawings.
As depicted in figs. 1 and 2, the utility model discloses a kind of magnetic shielding structure of durface mounted permanent magnet rotor, including mandrel 1,
Magnet steel 2, protective case 3, every magnet 4 and interpolar filling block 5, several magnet steel 2 mutually splice and form a magnetic pole 21, four magnetic poles
21 are distributed on mandrel 1 on the outer circle wall of mandrel 1, and are formed between two adjacent magnetic poles 21 every magnetic gap, interpolar filling
For block 5 arranged on described every in magnetic gap, being respectively provided with one at the both ends of each magnetic pole 21 every magnet 4, protective case 3 is arranged at magnetic pole 21
On outer circle wall, and it is interference fitted between protective case 3 and magnetic pole 21 and between protective case 3 and interpolar filling block 5, protective case 3
It is positioned at by magnetic pole 21, every magnet 4 and interpolar filling block 5 on mandrel 1.
Mounting groove 11 is equipped in the circumferential wall of mandrel 1, magnetic pole 21 is installed on mounting groove every magnet 4 and interpolar filling block 5
In 11.
Mounting groove 11 on mandrel 1 can play the role of while magnetic pole 21 are installed to 21 axial limiting of magnetic pole, and
It magnetic pole 21 and is placed in every magnet 4 in mounting groove 11, the mandrel positioned at 21 both ends of magnetic pole can do thick (part A in Fig. 1), can
To ensure the rigidity of entire mandrel 1.
Shape every 4 cross section of magnet is identical with the shape of 21 cross section of magnetic pole, and the end of magnetic pole 21 is mounted on every magnet 4
Portion.In this way, only the installation every magnet 4 need to be processed in an identical manner when 1 21 installation site of upper magnetic pole of mandrel is processed
Position, and the mounting means every magnet 4 can be identical with magnetic pole 21, the extension being equivalent on 21 axial direction of magnetic pole, peace
Dress and easy to process, assembly relation on axis.
Non-magnet material is made every the use of magnet 4 and interpolar filling block 5 to be made, using high temperature alloy, ceramics or modeling
Material.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, several improvement can also be made on the premise of the utility model principle is not departed from, these improvement also should be regarded as
The scope of protection of the utility model.
Claims (4)
1. a kind of magnetic shielding structure of durface mounted permanent magnet rotor, including mandrel (1), magnet steel (2) and protective case (3), it is characterised in that：
It further includes every magnet (4) and interpolar filling block (5), several magnet steel (2) are mutual and are spliced to form a magnetic pole (21), four magnetic poles
(21) mandrel (1) is distributed on the outer circle wall of mandrel (1), and is formed between adjacent two magnetic poles (21) every magnetic gap,
Interpolar filling block (5) is arranged on described every in magnetic gap, being respectively provided with one at the both ends of each magnetic pole (21) every magnet (4), protective case
(3) it is arranged on the outer circle wall of magnetic pole (21), and between protective case (3) and magnetic pole (21) and protective case (3) is filled out with interpolar
It fills between block (5) and is interference fitted, protective case (3) is positioned at mandrel (1) by magnetic pole (21), every magnet (4) and interpolar filling block (5)
On.
2. the magnetic shielding structure of durface mounted permanent magnet rotor as described in claim 1, it is characterised in that：The circumference of the mandrel (1)
Wall is equipped with mounting groove (11), and magnetic pole (21) is installed on every magnet (4) and interpolar filling block (5) in mounting groove (11).
3. the magnetic shielding structure of durface mounted permanent magnet rotor as described in claim 1, it is characterised in that：It is described transversal every magnet (4)
The shape in face is identical with the shape of magnetic pole (21) cross section.
4. the magnetic shielding structure of durface mounted permanent magnet rotor as described in claim 1, it is characterised in that：It is described every magnet (4) and pole
Between filling block (5) be made of non-magnet material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721430094.1U CN207426835U (en) | 2017-10-30 | 2017-10-30 | A kind of magnetic shielding structure of durface mounted permanent magnet rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721430094.1U CN207426835U (en) | 2017-10-30 | 2017-10-30 | A kind of magnetic shielding structure of durface mounted permanent magnet rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207426835U true CN207426835U (en) | 2018-05-29 |
Family
ID=62310425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721430094.1U Active CN207426835U (en) | 2017-10-30 | 2017-10-30 | A kind of magnetic shielding structure of durface mounted permanent magnet rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207426835U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107659015A (en) * | 2017-10-30 | 2018-02-02 | 南京磁谷科技有限公司 | A kind of magnetic shielding structure of durface mounted permanent magnet rotor |
| WO2023160364A1 (en) * | 2022-02-28 | 2023-08-31 | 重庆美的通用制冷设备有限公司 | Rotor, motor, compressor, and air conditioner |
-
2017
- 2017-10-30 CN CN201721430094.1U patent/CN207426835U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107659015A (en) * | 2017-10-30 | 2018-02-02 | 南京磁谷科技有限公司 | A kind of magnetic shielding structure of durface mounted permanent magnet rotor |
| WO2023160364A1 (en) * | 2022-02-28 | 2023-08-31 | 重庆美的通用制冷设备有限公司 | Rotor, motor, compressor, and air conditioner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104852495A (en) | Permanent magnet fixing structure of surface-mounted high speed permanent magnet motor | |
| US9800108B2 (en) | Permanent magnet rotor shaft assembly and method | |
| US20130043754A1 (en) | Rotor and rotary electric machine containing the same | |
| CN207426835U (en) | A kind of magnetic shielding structure of durface mounted permanent magnet rotor | |
| CN104716760B (en) | Rotary motor | |
| CN105703506B (en) | Reduce the motor rotor construction of eddy-current loss | |
| CN202586542U (en) | Rotating motor | |
| JP2013198303A (en) | Rotor structure of permanent magnet type rotary machine | |
| CN105245043B (en) | A kind of step skewed pole formula permanent-magnetic synchronous motor rotor | |
| CN105207382A (en) | Motor rotor and motor with same | |
| CN107659015A (en) | A kind of magnetic shielding structure of durface mounted permanent magnet rotor | |
| CN106130212A (en) | A kind of magneto and stator punching thereof | |
| KR20170044603A (en) | Torque-optimized rotor and small electric engine with a rotor of this type | |
| MX2016012800A (en) | Brushless motor. | |
| CN205178811U (en) | Permanent magnet synchronous motor | |
| CN204761195U (en) | High -speed permanent -magnet machine's of table formula of pasting permanent magnet fixed structure | |
| US20160211708A1 (en) | Magnetic mass for rotor, rotor manufacturing process and corresponding electrical machine | |
| CN204290662U (en) | New structure finite angle brushless moment motor | |
| JP6079132B2 (en) | Embedded magnet rotor | |
| KR102269299B1 (en) | Rotor including segmented yoke | |
| US10790714B2 (en) | Rotor for brushless electric machine and brushless electric machine | |
| CN206041672U (en) | Assemble stator | |
| CN204517530U (en) | A kind of surface-mounted permanent magnet machine rotor and motor | |
| CN208797696U (en) | A kind of compound permanent magnet of synchronous magnetoelectric machine rotor | |
| CN205377484U (en) | Improve permanent -magnet alternating -current servo motor rotor of air gap flux |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 99, Jinxin Middle Road, Jiangning District, Nanjing City, Jiangsu Province Patentee after: Nanjing Cigu Technology Co., Ltd Address before: Nine No. 211102 Bamboo Road, Jiangning Development Zone, Nanjing, Jiangsu, 100 Patentee before: NANJING CIGU LIMITED Corp. |
|
| CP03 | Change of name, title or address |