US 6,205,738 B1Granted

Frame for forming a housing of a group of air-handling units

AssigneeYang Fan Development Co., Ltd.

InventorTsai Chi Chen

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Abstract

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.

Claims4

Dependent claims

A frame for forming a housing of a group of air-handling units, said frame comprising a plurality of angle columns and a plurality of three-way unions for each joining three said angle columns extended in X-axis, Y-axis, and Z-axis directions;

said angle columns being formed from a plastic material by extrusion and having a hollow main body, and said three-way unions being integrally formed from a plastic material by injection molding, and
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, and
wherein 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.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 09/280,684Filed 29 Mar 1999
Granted: 27 Mar 2001
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

F24F 3/0442
Systems in which all treatment is given in the central station, i.e. all-air systems: with volume control at a constant temperature
E04C 3/28
Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces: of materials not covered by groups E04C3/04 -…
F24F 13/20
Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening: casings or covers
E04B 1/5825
Of bar-shaped building elements: with a closed cross-section