Patent ID: 7938173

Claim:
A heat exchanger comprising: a pair of headers extending in a vertical direction and spaced apart from each other, the headers including a receiver-fixed header; a plurality of refrigerant tubes arranged one above another in parallel at a spacing between the pair of headers and having opposite ends joined to the respective headers; a plurality of fins arranged between respective adjacent pairs of the refrigerant tubes; a liquid receiver fixed to the receiver-fixed header; and a receiver connecting block fixed to a peripheral wall of the receiver-fixed header and having a plurality of channels communicating an interior portion of the receiver-fixed header with an interior portion of the liquid receiver therethrough, wherein the liquid receiver is fixed to the connecting block, the connecting block and the liquid receiver is provided with respective fixing portions having respective contact faces in intimate contact with each other, the fixing portions of the connecting block and the liquid receiver have outer peripheral surfaces which are cylindrical surfaces sharing a same outside diameter, the liquid receiver is fixed to the connecting block by at least one screw with the contact faces of the fixing portions in intimate contact with each other, a seal member is liquid-tightly provided around respective outer peripheral surfaces of the fixing portions of the connecting block and the liquid receiver so as to cover a boundary between the contact faces of the fixing portion of the block and the fixing portion of the liquid receiver, the seal member is tubular and has rubber elasticity, and the seal member has an inner shape smaller than contours of the outer peripheral surfaces of the fixing portions of the block and the liquid receiver and is fitted as elastically deformed around the fixing portion of the connecting block and the fixing portion of the liquid receiver in intimate contact with the outer peripheral surfaces of the fixing portions by elastic force of the seal member.