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Mini-sized brushless motor utilizing flexible circuit board

A technology of flexible circuit boards and brushless motors, applied in the direction of electrical components, electromechanical devices, electric components, etc., can solve the problems of flexible circuit boards that are easy to bend, difficult to assemble micro motors, and difficult to bend, etc., to achieve small size and save energy. Good assembly space and good bending strength

Pending Publication Date: 2016-05-11
YUYAO ACTUATOR ELECTRIC MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the above-mentioned permanent magnet brushless DC motor assembly structure in the prior art, there are boards for assembling circuit boards that are not easy to bend, not suitable for special structural design, low voltage resistance, and not easy to assemble micro motors. Provides a micro brushless motor using a flexible circuit board, which can achieve the purpose of easy bending of the flexible circuit board, suitable for special structural design, high pressure resistance, and easy assembly of micro motors

Method used

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  • Mini-sized brushless motor utilizing flexible circuit board
  • Mini-sized brushless motor utilizing flexible circuit board
  • Mini-sized brushless motor utilizing flexible circuit board

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Such as Figure 4-1 to Figure 6-3 As shown, a miniature brushless motor with a flexible circuit board includes a casing 1, a plastic rear end cover 2, a stator assembly 3, a rotor assembly 4 and a flexible circuit board assembly A5, and the stator assembly 3 and the rotor assembly 4 are arranged on the machine. Inside the shell 1; the flexible circuit board assembly A5 includes a flexible circuit board A501 at the front and a flexible connection part A502 at the rear, and also includes insulating paper A6;

[0049] The flexible circuit board A501 is arranged on the plastic rear end cover 2, and the shape and size of the circuit board A501 are consistent with the shape and size of the plastic rear end cover 2; the insulating paper A6 is arranged on the flexible circuit board A501 and the plastic rear end Between the covers 2; the flexible circuit board A501 is provided with four positioning holes 503, and the plastic rear end cover 2 is provided with four connecting post...

Embodiment 2

[0055] Such as Figure 7-1 to Figure 11 As shown, a miniature brushless motor with a flexible circuit board includes a casing 1, a plastic rear end cover 2, a stator assembly 3, a rotor assembly 4 and a flexible circuit board assembly B7, and the stator assembly 3 and the rotor assembly 4 are arranged on the machine. Inside the shell 1; the flexible circuit board assembly B7 includes a flexible circuit board B701 at the front and a flexible connection part B702 at the rear; it also includes insulating paper B8;

[0056] The flexible circuit board B701 is arranged on the inner wall of the casing 1, and the flexible circuit board B701 is in a semicircular arc shape, and the semicircular arc shape of the flexible circuit board B701 is consistent with the semicircular arc shape of the lower half of the inner wall of the casing 1; the insulating The paper B8 is arranged between the flexible circuit board B701 and the inner wall of the casing 1, and the insulating double-sided tape ...

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Abstract

The invention relates to a mini-sized brushless motor utilizing a flexible circuit board and belongs to the technical field of assembling structures of mini-sized brushless motors. The mini-sized brushless motor comprises a machine shell, a plastic rear end cover, a stator assembly, a rotor assembly, insulating paper, a flexible circuit board assembly A, insulating paper A, or a flexible circuit board assembly B and insulating paper B, wherein the flexible circuit board assembly A comprises a flexible circuit board A at the front part and a flexible connecting part A at the rear part; the flexible circuit board assembly B comprises a flexible circuit board B at the front part and a flexible connecting part B at the rear part; the flexible circuit board A is arranged on the plastic rear end cover, and the insulating paper A is arranged between the flexible circuit board A and the plastic rear end cover; the flexible circuit board B is arranged on the inner wall of the machine shell and is of a semi-arc shape, and the insulating paper B is arranged between the flexible circuit board B and the inner wall of the machine shell; and the outer diameters of the flexible circuit board A and the flexible circuit board B are 16mm-20mm, and the thickness of each of the flexible circuit board A and the flexible circuit board B is 0.12mm-0.18mm. The mini-sized brushless motor has the beneficial effects of being easily bent, applicable to special structural design, capable of resisting high voltage and easily assembled with mini-sized motors.

Description

technical field [0001] The invention relates to a miniature brushless motor, in particular to a miniature brushless motor using a flexible circuit board, and belongs to the technical field of assembly structure of the miniature brushless motor. Background technique [0002] As we all know, in the micro brushless motor, the design of the circuit board is the most critical part. The conventional micro brushless motor circuit board adopts the FR4 board structure design, such as Figure 1-1 to Figure 3-2 As shown, the Hall sensor and other electronic components are pasted on the surface of the circuit board through SMT, and then the circuit board is fixed on the stator of the motor through the design of the circuit board gap and the insulated end plate, and finally the stator and rotor are assembled together. A brushless motor is formed, and the UVW three-phase line is drawn from the circuit board. This conventional miniature brushless motor has simple assembly structure, low pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K11/00
CPCH02K11/00
Inventor 冯豪士袁银菊
Owner YUYAO ACTUATOR ELECTRIC MOTOR CO LTD