Commutator, rotor and motor

一种换向器、电机轴的技术，应用在制造电动发电机、电路、集电器等方向，能够解决电机重量加重、吸收效果欠佳、结构复杂等问题，达到减轻重量、结构和制造工艺简化、大电容的效果

Inactive Publication Date: 2016-06-22
JOHNSON ELECTRIC SHENZHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the technical problem that the existing commutator structure requires an additional EMI absorption structure in the motor to release EMI, resulting in increased weight and complex structure of the motor, or, only the additional EMI absorption structure, the absorption effect is not good technical problem, the present invention proposes a commutator

Method used

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  • Commutator, rotor and motor
  • Commutator, rotor and motor
  • Commutator, rotor and motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] As an embodiment of the commutator of the present invention, such as figure 1 As shown, the commutator 1 of this embodiment includes a conductor layer 11 in the inner ring, an insulating layer 12 surrounding the conductor layer 11 in the radial direction, and a commutator segment layer 13 surrounding the insulating layer in the radial direction. Preferably, the conductor layer 11 is cylindrical, and the motor shaft installation hole 10 is provided in the center of the conductor layer 11 , and the conductor layer 11 and the commutator layer 13 are insulated from each other by the insulating layer 12 . The commutation segment layer 13 includes a plurality of commutation segments 13a. The commutator layer 13 can be made of copper, the insulating layer 12 can be made of resin, and the conductor layer 11 can be made of copper, aluminum or other metal materials. The commutator 1 is installed on the motor shaft of the motor through the rotating shaft installation hole 10 . ...

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Abstract

The invention provides a commutator, which comprises a conductor layer, an insulating layer and a commutator segment layer, wherein the conductor layer is arranged in the internal circle, the insulating layer surrounds the radial periphery of the conductor layer, the commutator segment layer surrounds the radial periphery of the insulating layer, the commutator segment layer comprises a plurality of the commutator segments, a motor shaft installation hole is formed in the axis of the insulating layer and the conductor layer and the commutator segment layer are insulated and separated from each other by means of the insulating layer. The invention further provides a rotor and a motor adopting the commutator. By adopting the technical scheme of the invention, the three-layer structure of the commutator forms a capacitor with large enfilade surface and small plate spacing, thus the commutator has large capacitance, and has high EMI absorption capacity, thereby providing possibility that an EMI absorbing structure does not need to be additionally arranged on the commutator.

Description

technical field [0001] The present invention relates to electric machines and rotors and commutators therein. Background technique [0002] like Figure 7 and Figure 8 As shown, EMI (Electromagnetic Interference, electromagnetic interference) occurs due to the spark signal generated by the commutator and the carbon brush when the motor is working. In order to suppress or eliminate EMI, the current common practice is to set up a The structure made of materials that absorb EMI, but this increases the weight of the motor, which is not conducive to the lightweight of the motor. At the same time, the EMI suppression structure and the supporting installation structure required for installing the structure make the motor structure more complicated. The processing technology is complicated and the manufacturing cost is high. Contents of the invention [0003] In order to solve the technical problem that the existing commutator structure requires an additional EMI absorption str...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R39/04H02K15/00
CPCH01R39/04H02K15/00H02K7/003H02K11/40H02K11/028
Inventor 罗庆斌黎志伟吴文明蒙绍森任晓琳敖显学何贝贝赵宏江叶迎松
Owner JOHNSON ELECTRIC SHENZHEN
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