CN202772679U - Sintered NdFeB magnet for motor - Google Patents
Sintered NdFeB magnet for motor Download PDFInfo
- Publication number
- CN202772679U CN202772679U CN 201220490217 CN201220490217U CN202772679U CN 202772679 U CN202772679 U CN 202772679U CN 201220490217 CN201220490217 CN 201220490217 CN 201220490217 U CN201220490217 U CN 201220490217U CN 202772679 U CN202772679 U CN 202772679U
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- magnet
- magnet body
- motor
- sintered ndfeb
- sintered
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- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model provides a sintered NdFeB magnet for a motor. The sintered NdFeB magnet comprises a magnet body which is made of sintered NdFeB material. The magnet body is a sector structure. Two sides of an outer end of the magnet body are provided with fixing grooves. The sintered NdFeB magnet for the motor has the advantages that since the two sides of the outer end of the magnet body are provided with the fixing grooves, thus a gap between adjacent magnet bodies is uniform, and the vibration and noise of the motor are greatly reduced; and the magnet body is made of the sintered NdFeB material, thus the magnet body has a very high magnetic property and good mechanical processing performance, and the magnetic property is stable.
Description
Technical field
The utility model relates to a kind of motor Sintered NdFeB magnet.
Background technology
Annular magnetic pole is important parts in the motor, and annular magnetic pole is to be surrounded by the multi-disc square magnet, and then annular magnetic pole is bonded on the electric machine casing by glue, in the bonding process, gap between the adjacent magnets is difficult to control, often causes vibration and the noise of motor.
Summary of the invention
Have above-mentioned deficiency in the prior art in order to overcome, the utility model provides a kind of motor Sintered NdFeB magnet of simple in structure, easy to use, absorb vibration and noise.
The technical scheme in the invention for solving the technical problem is: a kind of motor Sintered NdFeB magnet, comprise the magnet body, described magnet body is that sintered neodymium iron boron material is made, and described magnet body is sector structure, and the both sides of the outer end of described magnet body are provided with fixed groove.
Further, this external one deck nickel coating that also is coated with of described magnet, the aerial stability of nickel coating is very high, because metallic nickel has very strong passivation ability, generate rapidly one deck passivating film as thin as a wafer at surface energy, can resist the corrosion of atmosphere, alkali and some acid, the magnet body of being made by sintered NdFeB is had protective effect, thereby so that the utility model can be used in the adverse circumstances; Simultaneously, the hardness ratio of nickel coating is higher, can improve resistance to wear of the present utility model.
The utility model is when assembling, electric machine casing is provided with a plurality of reference columns, fixed groove on the both sides of the outer end of magnet body is positioned on the reference column, a plurality of magnet bodies surround an annular magnetic pole, fixed groove matches with reference column, can make the Gap-Ratios between the adjacent magnets body more even, thereby can greatly reduce vibration and the noise of motor.Because the magnet body is that sintered neodymium iron boron material is made, especially adopting performance to add the HCJ sum greater than N48 and magnetic energy product makes greater than 60 sintered Nd-Fe-B magnetic material, have high magnetic property, its maximum magnetic energy product exceeds ferrite more than 10 times, and machining property is good, thereby is convenient to processing.
The beneficial effects of the utility model are: because the both sides of the outer end of magnet body are provided with fixed groove, thereby so that the Gap-Ratios between the adjacent magnets body is more even, greatly reduce vibration and the noise of motor.And the magnet body adopts sintered neodymium iron boron material to make, thereby has high magnetic property, has good machining property, and magnetic property is stable.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
With reference to Fig. 1, a kind of motor Sintered NdFeB magnet comprises magnet body 1, and described magnet body 1 is made for sintered neodymium iron boron material, and described magnet body 1 is sector structure, and the both sides of the outer end of described magnet body 1 are provided with fixed groove 2.
Described magnet body 1 outer one deck nickel coating that also is coated with, the aerial stability of nickel coating is very high, because metallic nickel has very strong passivation ability, generate rapidly one deck passivating film as thin as a wafer at surface energy, can resist the corrosion of atmosphere, alkali and some acid, the magnet body of being made by sintered NdFeB is had protective effect, thereby so that the utility model can be used in the adverse circumstances; Simultaneously, the hardness ratio of nickel coating is higher, can improve resistance to wear of the present utility model.
The utility model is when assembling, electric machine casing is provided with a plurality of reference columns, fixed groove 2 on the both sides of the outer end of magnet body 1 is positioned on the reference column, a plurality of magnet bodies 1 surround an annular magnetic pole, fixed groove 2 matches with reference column, can make the Gap-Ratios between the adjacent magnets body 1 more even, thereby can greatly reduce vibration and the noise of motor.Because magnet body 1 is made for sintered neodymium iron boron material, especially adopting performance to add the HCJ sum greater than N48 and magnetic energy product makes greater than 60 sintered Nd-Fe-B magnetic material, have high magnetic property, its maximum magnetic energy product exceeds ferrite more than 10 times, and machining property is good, thereby is convenient to processing.
Claims (2)
1. a motor Sintered NdFeB magnet comprises the magnet body, it is characterized in that: described magnet body is that sintered neodymium iron boron material is made, and described magnet body is sector structure, and the both sides of the outer end of described magnet body are provided with fixed groove.
2. according to motor Sintered NdFeB magnet claimed in claim 1, it is characterized in that: this external one deck nickel coating that also is coated with of described magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220490217 CN202772679U (en) | 2012-09-25 | 2012-09-25 | Sintered NdFeB magnet for motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220490217 CN202772679U (en) | 2012-09-25 | 2012-09-25 | Sintered NdFeB magnet for motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202772679U true CN202772679U (en) | 2013-03-06 |
Family
ID=47779221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220490217 Expired - Fee Related CN202772679U (en) | 2012-09-25 | 2012-09-25 | Sintered NdFeB magnet for motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202772679U (en) |
-
2012
- 2012-09-25 CN CN 201220490217 patent/CN202772679U/en not_active Expired - Fee Related
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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: 20130306 Termination date: 20200925 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |