Air handler and method for assembling an air handler

An air handler, comprising:

• a plurality of module frames combined to form a framework of a module, each module frame having at least one sliding rib that extends along a longitudinal direction thereof;
• a plurality of case panels forming surfaces of the module, each case panel having at least one sliding rail groove formed in a rim thereof to slidingly couple with the at least one sliding rib of the plurality of module frames;
• and
• a plurality of connectors that interconnects the plurality of module frames, wherein each of the plurality of case panels includes:
• an inner plate that forms an inner surface of the module;
• an outer plate outwardly spaced substantially in parallel from the inner plate by a predetermined distance, wherein the outer plate forms an outer surface of the module;
• at least one joint member arranged to finish ends of the inner plate and the outer plate, wherein the at least one joint member is supported by the plurality of module frames and prevents transfer of heat from an interior of the module to an outside of the module;
• and
• a heat insulating material filled between the inner plate and the outer plate, wherein the plurality of module frames includes:
• a plurality of edge frames that form edges of the module;
• and
• at least one middle frame connected at first and second ends thereof to the plurality of edge frames, wherein the middle frame is not connected at a corner of the module, wherein the at least one middle frame includes a heat transfer barrier configured to prevent transfer of heat from an interior of the module to the outside, wherein each of the at least one middle frame includes a first frame arranged close to an inner space of the module, wherein the first frame forms a first hollow region having a closed cross section, and a second frame spaced from the first frame by a predetermined distance and arranged close to the outside of the module, wherein the second frame forms a second hollow region having a closed cross section, wherein the heat transfer barrier comprises at least one connector that interconnects the first frame and the second frame, and wherein the heat transfer barrier connects the first frame and the second frame to each other so as to form a third hollow region having a closed cross section between the first frame and the second frame.

An air handler, comprising:

• a plurality of module frames combined to form a framework of a module, each module frame having at least one sliding rib that extends along a longitudinal direction thereof;
• and
• a plurality of case panels forming surfaces of the module, each case panel having at least one sliding rail groove formed in a rim thereof to slidingly couple with the at least one sliding rib of the plurality of module frames, wherein each of the plurality of case panels includes:
• an inner plate that forms an inner surface of the module;
• an outer plate outwardly spaced substantially in parallel from the inner plate by a predetermined distance, wherein the outer plate forms an outer surface of the module;
• at least one joint member arranged to finish ends of the inner plate and the outer plate, wherein the at least one joint member is supported by the plurality of module frames and prevents transfer of heat from an interior of the module to an outside of the module;
• and
• a heat insulating material filled between the inner plate and the outer plate, wherein the at least one joint member is provided with one or more sealing portions to prevent leakage of air between the case panel and a module frame of the plurality of modular frames upon sliding coupling of the case panel to the respective module frame, wherein the at least one sliding rail groove is configured such that a distance between first and second surfaces of the at least one sliding rail groove is greater than a length of an open end of the at least one sliding rail groove, and wherein the sealing portions protrude, respectively, from first and second surfaces of the at least one sliding rail groove in opposite directions by a predetermined consistent length, and a distance between tip ends of the protruding sealing portions is less than the length of the open end of the at least one sliding rail groove.