connection structure between protective cover, top cover and housing, and contactor. a connection structure between a protective cover, an upper cover and a contactor housing is disclosed. the connection structure includes a contactor housing, a top contactor cover and a contactor protection cover. the fixing positioning blocks provided on the protective cover correspond with the bayonets provided on the side plates of the enclosure in order to form a horizontal fixing of the protective cover and the enclosure, the positioning notches provided on the protective cover correspond with the convex blocks positioning plates provided on the side plates and housing split plates to form an axial positioning of the protective cover and the housing, and the elongated socket upper edge of the protective cover fits into the groove provided on the housing partition plate to form a longitudinal fixing of the protective cover and the enclosure. the connection structure, according to the present disclosure, allows the protective cover to correspond closely with the housing and therefore is not easy to fall off, which can also prevent the inlet and outlet terminal of the cover protection are mounted in the wrong way.
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