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Summary:The utility model discloses a frequency converter protection device. The frequency converter comprises a frequency converter body, the frequency converter protection device further comprises a bottomplate, a supporting plate and a housing. Four guide columns distributed in an array mode are welded and fixed to the upper end face of the bottom plate. The upper end of each guide column movably penetrates through the supporting plate and then is in threaded connection with a nut. A first spring sleeves the outer part of the guide column between each nut and the support plate; a second spring sleeves the outer part of each guide column between the support plate and the bottom plate, the frequency converter body is fixed on the upper end surface of the support plate, the housing covers the outer parts of the frequency converter body and the support plate, the lower end of the housing is fixed with the support plate, and gaps are reserved between the inner wall of the housing and the support plate and between the i
Bibliography:Application Number: CN201920236044U