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Motor shell assembling and magnetizing process

A motor casing and process technology, which is applied in the field of motor casing assembly and magnetization technology, can solve the problems of unfavorable brushless DC fan mute effect, residual magnetic force, and large electromagnetic sound.

Pending Publication Date: 2021-12-10
深圳市庆源电子五金有限公司
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] It should be pointed out that for the existing finished motor casing, the magnetic field waveform curve generated after the magnetization of the magnetic strip is a bullhorn wave. Because the magnetic field of the bullhorn wave is relatively strong, it does not match the motor magnetic field or is greater than the motor magnetic field. This leads to excessive magnetic strength, which in turn causes excessive electromagnetic noise, which is not conducive to further improving the mute effect of the brushless DC fan.

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  • Motor shell assembling and magnetizing process
  • Motor shell assembling and magnetizing process
  • Motor shell assembling and magnetizing process

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Embodiment Construction

[0038] The present invention will be described below in conjunction with specific embodiments.

[0039] A motor casing assembly and magnetization process, which includes the following steps, specifically:

[0040] a. Preparation of triangular waveform charging head 1: as figure 2 and image 3 As shown, the magnetizing head 1 includes a fixed seat 11, a magnetizing assembly installed on the upper end of the fixed seat 11, the magnetizing assembly includes a fixed sleeve 12 installed in the middle of the upper surface of the fixed base 11, and the fixed sleeve 12 The core part of the core is provided with an upward-opening sleeve accommodating chamber 121, and the sleeve accommodating chamber 121 of the fixed sleeve 12 is embedded with a magnetically conductive steel winding frame 13, and the magnetically conductive steel winding frame 13 is wound with a coil Winding 14; the upper end of the fixed sleeve 12 is provided with an insulating adhesive layer 15 for covering the mag...

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Abstract

The invention discloses a motor shell assembling and magnetizing process, which comprises the following steps that a, a triangular waveform magnetizing head is prepared, specifically, the magnetizing head comprises a fixing base and a magnetizing assembly, and the magnetizing assembly comprises a fixing sleeve, a magnetic conduction steel reel, a coil winding and an insulating glue layer; b, the magnetic strip is installed in the motor shell, and the magnetic feeding procedure is completed, the magnetic strip and the motor shell are automatically assembled through a magnetic feeding jig assembly, and the magnetic feeding jig assembly comprises a magnetic strip bending die, a magnetic strip push broach, a motor shell positioning jig, a lifting die core and a die core lifting driving mechanism; c, the magnetic strip in the motor shell is magnetized through a magnetizing head so as to enable the magnetic strip to generate a triangular wave curve effect; and d, detection is conducted. The motor shell and magnetic strip assembling operation can be effectively achieved, the magnetic strips in the motor shell can be effectively magnetized, the assembled and magnetized motor shell finished product can effectively reduce electromagnetic sound generated in the operation process of the brushless direct current fan, and the mute effect of the brushless direct current fan is improved.

Description

technical field [0001] The invention relates to the technical field of brushless DC fans, in particular to a process for assembling and magnetizing a motor shell. Background technique [0002] As a fan product, the brushless DC fan is accepted by more and more consumers due to its quiet effect, and there are various brushless DC fan products in the prior art. [0003] Among them, for the brushless DC fan, its core power structure is a brushless motor; figure 1 As shown, the existing finished product of the motor casing applied to the brushless DC fan includes a motor casing, which is in the shape of a ring, and a magnetic strip in the shape of a ring is embedded in the motor casing. [0004] It should be pointed out that for the existing finished motor casing, the magnetic field waveform curve generated after the magnetization of the magnetic strip is a bullhorn wave. Because the magnetic field of the bullhorn wave is relatively strong, it does not match the motor magnetic ...

Claims

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Application Information

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IPC IPC(8): H02K15/03H02K15/14H02K15/02H01F13/00
CPCH02K15/03H02K15/14H02K15/026H01F13/003
Inventor 乡发利
Owner 深圳市庆源电子五金有限公司
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