Electric operator and wrapping cover thereof

Abstract

The invention discloses a wrapping cover of an electric operator and an electric operator comprising the same. The disclosed wrapping cover of the electric operator comprises a front wrapping plate and a rear wrapping plate, wherein the front wrapping plate is made of a fireproof plate and is provided with a power output hole penetrating into the front side surface and the rear side surface; the rear wrapping plate comprises a cylinder body with an opened front end and a closed rear end; the cylinder body is made of a heat insulation composite material; two surface layers of the heat insulation composite material are made of fireproof cloth, aluminium silicate wool is filled between the two surface layers; the front end part of the cylinder body is in occluding junction with the front wrapping plate; the fireproof plate and the aluminium silicate wool can keep the heat insulation effect of the wrapping cover; the front wrapping plate has a rigid characteristic and the rear wrapping plate integrally has an elastic characteristic; and the occluding junction of the front wrapping plate and the rear wrapping plate is easier to ensure, and further that the structure is simpler and the manufacture cost is lowered while the sealing performance of the wrapping cover is ensured; and a supporting material of the aluminium silicate wool is made of the fireproof cloth, thus the weight of the wrapping cover can be greatly reduced.

Description

technical field [0001] The invention relates to a high temperature resistance technology for electrical devices, in particular to a wrapping cover of an electric actuator, and also to an electric actuator comprising the wrapping cover. Background technique [0002] With the rapid development of urban rail transit, the environmental control system that controls the environment of traffic facilities has become an important part of traffic facilities. An important measure taken by the environmental control system is to set up appropriate ventilation ducts to perform forced ventilation in the space where people are or other predetermined spaces; The electric actuator of other appropriate components makes the air exchange between the predetermined space and the external space through the ventilation duct to achieve the purpose of environmental control. [0003] At present, some ventilation ducts also have fire-fighting functions, which in turn require the electric actuators in t...

AI Technical Summary

Problems solved by technology

The covering cover provided by the existing technology cannot change the high temperature resistance performance of the electric actuator according to the high temperature resistance requirements, which leads to the fact that the versatility of the existing covering cover cannot meet the actual needs

Images