The invention provides a cooling device
assembly used for an
electricity well in a building and equipped with an
electronic controller and a filter screen. The cooling device
assembly comprises multiple cooling devices, the cooling devices are arranged separately along the vertical direction of the
electricity well, gas is supplied to the cooling devices via a gas conveyer
pipe (61), each cooling device comprises a cooling device body (81) and fixing supports (100), the fixing supports are arranged at the two sides of the cooling device body respectively and used for fixing two opposite sidewalls (102) of the
electricity well, each fixing support is provided with cable fixing holes (103) through which power cables (1030) penetrate, the cooling device body (82) comprises an annular cavity casing (15) which is provided with a gas inlet-tube
nozzle (6) and thus communicated with the gas conveyer
pipe (61), and the gas inlet-tube
nozzle (6) is provided with the filter screen (27), which is made of a
metal material, to filter particles and dusts of
large size in gas conveyed by the gas conveyer
pipe (61).