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A heat exchanger which includes a pair of substantially parallel header pipes. A plurality of substantially parallel tubes are disposed between the pair of header pipes. Each tube defines a pair of end portions which are connected to the pair of header pipes. Each of the pair of header pipes compris

A heat exchanger which includes a pair of substantially parallel header pipes. A plurality of substantially parallel tubes are disposed between the pair of header pipes. Each tube defines a pair of end portions which are connected to the pair of header pipes. Each of the pair of header pipes comprises a rectangular member which has a longitudinal opening formed along one side of the rectangular member. A connecting plate is installed in the opening. The connecting plate has a plurality of holes for receiving the end portions of the tubes therein to connect the tubes to each of the pair of header pipes. According to the above structure, a heat exchanger can be easily manufactured and inexpensively produced by reducing the cost for manufacturing the header pipes. The construction of the present heat exchanger reduces the occurrence of defects in the connection of tubes.

대표청구항 ▼

In a heat exchanger including a pair of substantially parallel header pipes and a plurality of substantially parallel tubes disposed between said pair of header pipes, each said tube defining a pair of end portions connected to said pair of header pipes, said header pipes and tubes forming a path fo

In a heat exchanger including a pair of substantially parallel header pipes and a plurality of substantially parallel tubes disposed between said pair of header pipes, each said tube defining a pair of end portions connected to said pair of header pipes, said header pipes and tubes forming a path for the passage of a heat medium, the improvement comprising: each of said pair of header pipes comprising a rectangular member having an opening formed on a side thereof and extending in the longitudinal direction of said rectangular member, and a connecting plate disposed in said opening, said connecting plate having a plurality of holes for inserting said end portions of said tubes therein to connect said tubes to each of said pair of header pipes; and an inner wall dividing said header pipe into a first portion forming a part of said path for the heat medium and a second portion for enabling the use of fasteners to connect a bracket thereto. In a heat exchanger including a pair of substantially parallel header pipes and a plurality of substantially parallel tubes disposed between said pair of header pipes, each said tube defining a pair of end portions connected to said pair of header pipes, the improvement comprising: each of said pair of header pipes comprising a rectangular member having an opening formed on a side thereof and extending in the longitudinal direction of said rectangular member, and a connecting plate disposed in said opening, said connecting plate having a plurality of holes for inserting said end portions of said tubes therein to connect said tubes to each of said pair of header pipes; a plurality of fins provided along sides of said tubes; and a pair of reinforcement members provided along sides of each of the top and bottom fins, wherein said respective reinforcement members provided along sides of each of the top and bottom fins have a width which substantially equals the distance between the inner surfaces of said rectangular member in said opening and wherein said reinforcement members contact the side surfaces of said connecting plates at their end portions and contact the inner surfaces of said rectangular member in said opening along its side surfaces. A method of making a heat exchanger having a fluid flow path therein, said method comprising the steps of: forming a plurality of channel members such that each has a generally rectangular configuration and defines a longitudinal opening along one side thereof; forming an inner wall in at least one of said channel members such that said at least one channel member is divided into a first portion forming a part of the fluid flow path and a second portion for enabling the use of fasteners to connect a bracket thereto; forming a plurality of connecting plates; forming a plurality of spaced apart holes along the length of each of said connecting plates; forming a plurality of heat exchange tubes each having a pair of ends; inserting each end of each heat exchange tube into one of said holes defined in one of said connecting plates; and inserting each of said connecting plates into one of said openings defined by said channel members such that each assembled connecting plate and channel member define a rectangular header pipe.