Electric control assembly and electrical equipment

Abstract

The invention discloses an electric control assembly and electrical equipment. The electric control assembly comprises an electric control panel. The electric control panel is provided with a first filter circuit and a power supply circuit used for supplying power to an electric load. The power supply circuit comprises a power supply input end, a rectifying circuit, an IPM module and a power supply output end. The power supply input end, the rectifying circuit, the IPM module and the power supply output end are connected in sequence. The first end of the first filter circuit is connected withthe power supply circuit. The electric control assembly further comprises a metal plate which is arranged on one side of the electric control panel in parallel, and the metal plate and the electric control panel are arranged at an interval. The metal plate is electrically connected with the casing of the electric load. The second end of the first filter circuit is electrically connected with the metal plate. According to the invention, the EMC cost is reduced; the production efficiency is improved; and the reduction of the installation volume of EMC in electrical equipment is facilitated.

Description

technical field [0001] The invention relates to the technical field of electronic circuits, 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] In the prior art, EMC is generally improved by adding EMC filter devices and optimizing EMC filter device parameters, such as using magnetic rings, X capacitors or common-differential mode inductors according to different frequency bands, and increasing magnetic ring suppre...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, EMC is generally improved by adding EMC filter devices and optimizing EMC filter device parameters, such as using magnetic rings, X capacitors or common-differential mode inductors according to different frequency bands, and increasing magnetic ring suppression for output to reduce electromagnetic interference. Disadvantages such as high EMC cost, large number of magnetic rings, complicated installation, and low production efficiency

Moreover, the size of the EMC suppression device is relatively large, which is limited by the external dimensions of the device and the internal structure of the motor. This improvement method cannot be applied to a miniaturized electronic control solution.

Images