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Electric control assembly and electrical equipment

A technology of electronic control components and electronic control boards, applied in the direction of suppressing electromagnetic interference, can solve problems such as increasing the EMC interference of electrical equipment, and achieve the effect of avoiding excessive EMC interference

Active Publication Date: 2020-08-04
GUANGDONG MIDEA WHITE HOME APPLIANCE TECH INNOVATION CENT CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, in electrical equipment equipped with a motor, the motor tends to generate extremely wide-spectrum noise during operation, and the noise is easily transmitted to other circuit modules of the electrical equipment through the grounding wire, increasing the EMC interference of the electrical equipment

Method used

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  • Electric control assembly and electrical equipment
  • Electric control assembly and electrical equipment
  • Electric control assembly and electrical equipment

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Embodiment Construction

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0042] It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present invention, the directional indication is only used to explain the position in a certain posture (as shown in the accompanying drawing). If the specific posture changes, the directional indication will also change accordingly.

[0043]In addition, if there are descriptions involving "first", "second" and s...

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Abstract

The invention discloses an electric control assembly and electrical equipment. The electric control assembly comprises an electric control board, wherein the electric control board is provided with asystem protection ground, a power supply input terminal and a ground wire terminal used for accessing a power supply, and a power supply output terminal and a motor ground terminal used for accessinga motor, the ground wire terminal being connected with the system protection ground; a power supply filter circuit, wherein the input end of the power supply filter circuit is connected with the powersupply input terminal, and the output end of the power supply filter circuit is connected with the power supply output terminal; an EMC filter circuit, wherein the input end of the EMC filter circuitis connected with the motor grounding terminal and the grounding end of the power supply filter circuit, and the output end of the power supply filter circuit is connected with a system reference ground. According to the invention, EMC electromagnetic radiation generated by the motor is suppressed, and the overall EMC anti-interference performance of an electrical equipment product is improved.

Description

technical field [0001] The invention relates to the technical field of electric control, in particular to an electric control component and electrical equipment. Background technique [0002] EMC refers to the ability of a device or system to operate satisfactorily in its electromagnetic environment without causing intolerable electromagnetic interference to any device in its environment. Therefore, EMC includes two requirements: on the one hand, it means that the electromagnetic interference generated by the equipment during normal operation cannot exceed a certain limit; on the other hand, it means that the equipment has a certain Degree of immunity, that is, electromagnetic susceptibility. [0003] At present, in electrical equipment equipped with a motor, the motor tends to generate extremely wide-spectrum noise during operation, and the noise is easily transmitted to other circuit modules of the electrical equipment through the ground wire, increasing the EMC interfere...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K11/02
CPCH02K11/02H05K1/0218H05K1/0233
Inventor 杨志龙侯俊峰胡建
Owner GUANGDONG MIDEA WHITE HOME APPLIANCE TECH INNOVATION CENT CO LTD
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