Patent ID: 6691772
Filing Date: 2004-02-17
Classification: F28D,F28F

Abstract:
A heat exchanger used for a condenser in a refrigeration cycle in which a refrigerant compressed by a compressor is condensed by a condenser, the condensed refrigerant is decompressed by passing through a decompressing device, and the decompressed refrigerant is evaporated by an evaporator and then returned to said compressor, said heat exchanger comprising:a pair of hollow headers arranged in parallel; a plurality of tubes disposed between said headers and communicated with said headers with opposite end portions fitted in tube fitting apertures formed in opposed surfaces of said pair of headers; corrugated fins disposed between adjacent tubes and at an outside of an outermost tube; and a side plate disposed at an outside of an outermost fin with opposite end portions fitted in side plate fitting apertures formed in opposed surfaces of said pair of headers, wherein said side plate fitting aperture is formed into the same or approximately the same configuration as that of said tube inserting aperture, wherein each of opposite end portions of said side plate is formed into a cross-sectional circumferential configuration corresponding to a cross-sectional circumferential configuration of said side plate fitting apertures, wherein said side plate is provided with opposite end portions each having a contacting piece vertically extending relative to said side plate, and said side plate is secured to said header with a header fitting surface of said contacting piece fitted to an external surface of said header, and wherein said contacting piece is formed by bending a cut-part of a widthwise edge portion of said header inserting end portion.