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Motor and electrical equipment comprising same

A motor and circuit board technology, applied in the field of motors, can solve the problems of inaccurate magnet sensing, inability to arrange other sensing elements, and less available space for circuits, so as to reduce height space, ensure thinning, and reduce Effects of Axial Dimensions

Inactive Publication Date: 2019-06-07
NIDEC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this will face the problem of inaccurate magnet sensing, and the available space of the circuit is less, and it is impossible to arrange other sensing components.

Method used

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  • Motor and electrical equipment comprising same
  • Motor and electrical equipment comprising same
  • Motor and electrical equipment comprising same

Examples

Experimental program
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Effect test

Embodiment 1

[0053] This embodiment provides a motor.figure 1 is an exploded schematic diagram of the motor, figure 2 is a sectional view of the motor.

[0054] Such as figure 1 and figure 2 As shown, the motor has:

[0055] a shaft (not shown), which is configured to be able to rotate around the central axis C;

[0056] Two rotors 100, 200 are arranged in the axial direction with a predetermined interval, and at least one of the rotors 100 or 200 has a magnet (not shown in the figure). In this embodiment, the rotor 100 has a magnet as an example. , the configuration of the magnet can refer to the prior art;

[0057] The stator 300 is disposed between the two rotors 100, 200, and has a plurality of stator cores 301 arranged in the circumferential direction and coils 302 wound on the plurality of stator cores 301;

[0058] The circuit board 400 is arranged between the stator 300 and the rotor 100 with magnets. In this embodiment, the circuit board 400 is facing the rotor 100, that i...

Embodiment 2

[0083] This embodiment provides an electric device, which has the motor described in Embodiment 1 and other conventional components. This embodiment does not limit the structure, arrangement and function of the conventional components, and reference may be made to the prior art.

[0084] In this embodiment, based on the structure of the motor in Embodiment 1, a circuit board is placed in the inner stator of the motor (such as a thin axial flux motor) to connect the motor coil lines and configure various required sensing elements , does not increase the air gap or the axial height of the motor, which reduces the space occupied by the stator height, thereby reducing the axial size of the motor.

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PUM

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Abstract

The invention relates to a motor and electrical equipment comprising the same. The motor is provided with a shaft, two rotors, a stator and a circuit board, wherein the shaft is configured to rotate by taking the central axis as a center, the two rotors are configured in the axial direction in a mode of reserving a specified interval, at least one of the rotors is provided with a magnet, the stator is configured between the two rotors and provided with a plurality of stator cores configured in the circumferential direction and a coil wound around the plurality of stator cores, and the circuitboard is arranged between the stator and the rotor with the magnet. The motor is characterized in that the circuit board is provided with a plurality of slot holes configured in the circumferential direction, the plurality of slot holes run through the circuit board in the axial direction, and the plurality of stator cores are respectively embedded in the plurality of slot holes. The structure ofthe circuit board of the motor can assist the assembly and positioning of the stator cores so as to simplify the complexity of the construction and assembly.

Description

technical field [0001] The invention relates to the field of motors, in particular to a motor and electrical equipment including the motor. Background technique [0002] In existing motors, the coils of the stator assembly of the motor need to be pulled out of the rotor first, and then connected to the circuit board, and a sensing element is installed on the circuit board to sense the additional magnetic poles installed on the other side of the rotor. In this way, the axial space and assembly difficulty of the motor are increased. [0003] In order to solve the above problems, one solution is to arrange the circuit board inside the stator assembly, and configure the sensing element on the circuit board. But in this way, the space required by the sensing element needs to be considered, the air gap is lengthened, the characteristics of the motor are reduced, or the axial length of the motor is increased, or the space available for the coil of the stator assembly is consumed. ...

Claims

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Application Information

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IPC IPC(8): H02K11/22
CPCH02K11/215H02K11/22H02K11/225H02K11/25H02K2211/03H02K21/24H02K16/02
Inventor 颜国智吴耿彰王国珉林秀瑛林明赞林家庆
Owner NIDEC CORP
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