CN2068271U - Compound permanent magnet - Google Patents
Compound permanent magnet Download PDFInfo
- Publication number
- CN2068271U CN2068271U CN 90207606 CN90207606U CN2068271U CN 2068271 U CN2068271 U CN 2068271U CN 90207606 CN90207606 CN 90207606 CN 90207606 U CN90207606 U CN 90207606U CN 2068271 U CN2068271 U CN 2068271U
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- CN
- China
- Prior art keywords
- permanent magnet
- compound
- magnetic
- compound permanent
- magnet
- 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.)
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The utility model relates to a compound permanent magnet which is a permanent magnetism element in compound structure. The compound permanent magnet is a permanent magnet element used for a magnetoelectric machine and other equipment, formed by that soft and magnetic conductivity material is cemented on the outside of a high magnetic nd-fe-b magnet. The magnetic pole which is manufactured in the structural form without abrasive machining, in the shape of a tile or other things has the advantages of easy accuracy control and low manufacturing cost.
Description
The utility model is a kind of permanent magnet of composite construction.
Permanent magnet DC motor and the precision equipment that needs to use permanent magnet elements in manufacture process, for guaranteeing mechanical precision, all need carry out retrofit to magnet.And the neodymium iron boron magnetic body of high magnetic, because its hardness height is easily cracked, difficult control shape and dimensional accuracy in the fabrication and processing process, thereby the manufacturing cost of magnetic element is increased.
The purpose of this utility model is at the problems referred to above, proposes a kind of permanent magnet of composite construction, with the achievement in research of mature neodymium-iron-boron magnetic material, expand practical application at permanent magnet DC motor and need in the precision equipment with permanent magnet.
Described compound permanent magnet structure, referring to accompanying drawing, neodymium iron boron magnetic body (2) is in the centre, and its outside is soft permeability magnetic material (1), its two ends are nonmagnetic substance bond (3), with binding agent soft permeability magnetic material (1) and non-magnet material bond (3) are bondd with neodymium iron boron magnetic body (2).
Adopt version of the present utility model, can make watt shape motor pole of exempting from grinding, or the magnetic element of other shape, shape and dimensional accuracy, magnetic pole low cost of manufacture guaranteed in the course of processing easily.Permanent magnet DC motor uses compound permanent magnet to make magnetic pole, can dwindle structural parameters, to reach the purpose that reduces volume, weight.
Claims (1)
- Compound permanent magnet is by neodymium iron boron magnetic body (2), soft permeability magnetic material (1), and nonmagnetic substance bond (3) constitutes, and it is characterized in that neodymium iron boron magnetic body (2) outside bonding soft permeability magnetic material (1), its two ends bonding nonmagnetic substance bond (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90207606 CN2068271U (en) | 1990-05-23 | 1990-05-23 | Compound permanent magnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90207606 CN2068271U (en) | 1990-05-23 | 1990-05-23 | Compound permanent magnet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2068271U true CN2068271U (en) | 1990-12-26 |
Family
ID=4888011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90207606 Withdrawn CN2068271U (en) | 1990-05-23 | 1990-05-23 | Compound permanent magnet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2068271U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101145423B (en) * | 2006-08-30 | 2011-12-14 | 信越化学工业株式会社 | Permanent magnet and permanent magnet rotating machine |
| CN104330018A (en) * | 2014-10-31 | 2015-02-04 | 东南大学 | Measuring unit for measuring diameter of slewing bearing roller bed |
-
1990
- 1990-05-23 CN CN 90207606 patent/CN2068271U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101145423B (en) * | 2006-08-30 | 2011-12-14 | 信越化学工业株式会社 | Permanent magnet and permanent magnet rotating machine |
| CN104330018A (en) * | 2014-10-31 | 2015-02-04 | 东南大学 | Measuring unit for measuring diameter of slewing bearing roller bed |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |