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An anti-jamming type flat motor

A technology of flat motors and components, applied in the direction of electromechanical devices, control mechanical energy, electrical components, etc., can solve the problems of high EMC interference, large stacking space, and sensitivity attenuation of mobile phones, so as to eliminate EMC interference, reduce stacking space, and prevent desense interference Effect

Active Publication Date: 2020-09-04
BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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Problems solved by technology

[0003] In order to solve the problems of existing flat motors for mobile phones, such as desense, occupying a large structure and stacking space, and generating high EMC interference to mobile phones after long-term use, the present invention provides an anti-interference flat motor. The technical solutions adopted are as follows:

Method used

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  • An anti-jamming type flat motor
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  • An anti-jamming type flat motor

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Embodiment Construction

[0047] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0048] The embodiment of the present invention provides an anti-interference rotor and a flat motor in order to solve the problems of desense of sensitivity attenuation, large structure stacking space occupied by the existing flat motor for mobile phones, and high EMC interference to the mobile phone after long-term use. , the technical solution adopted is as follows:

[0049] An anti-jamming type flat motor such as figure 1 with figure 2 As shown, the flat motor includes a lower housing assembly 1, a brush assembly 2, a stator assembly 3, an anti-interference rotor 4 and an upper housing assembly 5: the brush assembly 2, the stator assembly 3 and the anti-interf...

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Abstract

The present invention proposes an anti-interference type flat motor; the flat motor includes a lower casing assembly, a brush assembly, a stator assembly, an anti-interference rotor and an upper casing assembly: the brush assembly, the stator assembly and the anti-interference The type rotors are installed in the space formed by the combination of the lower housing assembly and the upper housing assembly. The flat motor has the characteristics of reducing stacking space and effectively preventing desens interference to radio frequency circuits, antennas and ICs due to unstable reverse electromotive force during operation and after long-term use.

Description

technical field [0001] The invention provides an anti-interference type flat motor, which belongs to the technical field of mobile phone hardware. Background technique [0002] Desense is a difficult problem in the field of mobile phone hardware. LCD, charging, and motors will generate current fluctuations when they are working, which will generate changing electromagnetic fields and interfere with some channels of antennas and radio frequencies. The flat motor is widely used in mobile phones because of its low cost and easy structure. However, flat motors have extremely large current fluctuations due to the large number of cycle commutations, so the desense is very difficult to solve. Many manufacturers have added shielding covers and conductive tapes to the motor body PCB in order to solve the flat motor desense problem. However, this This method increases the occupied space of the flat motor. At the same time, due to the continuous contact and friction between the brush ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K11/028H02K3/26H02K7/075
CPCH02K3/26H02K7/075H02K11/028H02K2213/03
Inventor 项吉
Owner BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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