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Mobile phone vibration motor samarium cobalt magnetic ring

A vibration motor, samarium cobalt technology, applied in the direction of electromechanical devices, electric components, manufacturing motor generators, etc., can solve the problems of cracking, fragile, no processing methods, etc.

Inactive Publication Date: 2007-05-30
胡振武
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Samarium cobalt (Sm2Co17) is an alloy composed of rare earth metal samarium (Sm) and transition metal cobalt (Co). It is a magnetic material prepared by powder metallurgy vacuum pressure sintering and magnetized by a magnetic field. It has extremely high hardness. And brittle, and the strength is very low, the machinability is extremely poor, and it is fragile and easy to crack during processing, especially the holes of ring products have not been processed in China for a long time
Samarium-cobalt (Sm2Co17) magnetic rings for mobile phone vibration motors generally have a length > 3mm, and require strict geometrical precision and high consistency. Therefore, there is no processing technology in China to produce samarium-cobalt (Sm2Co17) magnetic rings for mobile phone vibration motors.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0005] Mechanically cut samarium cobalt (Sm2Co17) magnetic block material, make it into cylindrical blanks, use laser cutting (drilling), steel wire abrasive grinding and reaming, inner base grinding outer circle, grinding end face or when the magnetic ring aperture > φ1 .4mm, when the length is less than 5mm, the samarium cobalt (Sm2Co17) magnetic ring is produced by mechanical drilling, steel wire abrasive grinding and reaming, inner base grinding outer circle, grinding end face and other fine processing methods.

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PUM

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Abstract

This invention relates to one Sm2Co17 magnetic ring widely applied in cell phone vibration, which has high magnetic energy and low temperature parameters against high temperature and with strong anti-erosion ability and high rigidity hard for process. This invention uses high tech means and laser device and uses mechanic Sm2Co17 magnetic block to process column bump particle.

Description

Technical field: [0001] The invention relates to a production process of a vibrating motor stator of a mobile phone, in particular to a magnetic ring technology made of samarium cobalt (Sm2Co17) permanent magnet material. Background technique: [0002] The stator of the vibration motor of the mobile phone uses a permanent magnet material magnetic ring, and the magnetic ring processed with samarium cobalt (Sm2Co17) material (referred to as: samarium cobalt (Sm2Co17) magnetic ring), which is better than the magnetic ring processed with other magnetic materials. It has the characteristics of high magnetic comprehensive properties, stable performance, high temperature resistance, oxidation resistance, and corrosion resistance. The mobile phone vibration motor produced with samarium cobalt (Sm2Co17) magnetic ring has good temperature characteristics, high stability, and is suitable for automatic assembly. It is a mobile phone vibration motor. direction of development. [0003] S...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/02H02K15/00
Inventor 胡振武
Owner 胡振武