초록 ▼

A frame for forming a housing of a group of air-handling units mainly includes a plurality of extruded plastic angle columns and a plurality of integrally injection molded plastic three-way unions. The plastic angle columns and three-way unions eliminate the problem of condensate on the surfaces of

A frame for forming a housing of a group of air-handling units mainly includes a plurality of extruded plastic angle columns and a plurality of integrally injection molded plastic three-way unions. The plastic angle columns and three-way unions eliminate the problem of condensate on the surfaces of the housing and allow the air-handling units to operate with reduced energy consumption, because the plastic columns and unions have low coefficient of thermal conduction and would not easily have a surface temperature lower than a dew point temperature of ambient air outside the housing. Meanwhile, the extruded plastic angle columns and the injection molded plastic three-way unions can have standardized dimensions and be efficiently produced through mass production, the frame for the housing of the air-handling units can therefore be formed at reduced labor and time.

대표청구항 ▼

[What is claimed is:] [1.]wherein said three-way unions each include a base defining three continuous front surfaces in X-axis, Y-axis, and Z-axis directions, and three connection legs integrally connected to said base and separately projected from a rear side of said three front surfaces; and three

[What is claimed is:] [1.]wherein said three-way unions each include a base defining three continuous front surfaces in X-axis, Y-axis, and Z-axis directions, and three connection legs integrally connected to said base and separately projected from a rear side of said three front surfaces; and three injection molded reinforcing plates being separately provided to root portions of said three connection legs in such a manner that said reinforcing plates provide positions between said three connection legs for front panels mounted on said frame to complete said housing of said group of air-handling units, andwherein said angle columns have laterally symmetrical structure and said hollow main body of said angle columns have an axially extended internal middle rib that divides an inner space of said hollow main body into two identical closed spaces.