Heat exchanger core, and method of assembling the heat exchanger core

Abstract

Reinforcement holes and tube holes are formed so as to be of the same size, and the interval between the reinforcement hole and the tube hole adjacent to the reinforcement hole is made equal to the interval between the adjacent tube holes.

Description

[0001] The present application is a divisional of U.S. Application serial number 09-461,211, filed Dec. 15, 1999, the entire contents of which are incorporated herein by reference.BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention relates to a heat exchanger core constituted by connecting opposite ends of a header member with corresponding opposite ends of another header member, the latter header member being positioned opposite the former header member through use of reinforcement members, as well as to a method of assembling the heat exchanger core. [0004] The present application is based on Japanese Patent Applications No. Hei. 10-355699, 10-39704, and 11-345690 which are incorporated herein by reference. [0005] 2. Description of the Related Art [0006] A core structure constituted by connecting opposite ends of a header member with corresponding opposite ends of another header member has already been known as the core of a heat exchanger, su...

AI Technical Summary

Benefits of technology

[0017] The present invention is also aimed at providing a heat exchanger core which prevents a deviation between the center of a reinforcement hole and the center of an insertion section with respect to the widthwise direction of the header member, which would otherwise be caused when the core is inserted into header members, to a much greater extent than in a heat exchanger core of conventional structure.

[0030] In the heat exchanger core of the present invention, the interval between the reinforcement hole and the end face of the header member is made smaller than a value obtained by adding the size of a shorter side of the tube hole to the interval between adjacent tube holes. Accordingly, formation of undesired tube holes at the end of the header member can be prevented unfailingly.

Problems solved by technology

In order to simultaneously form both the tube holes 1a and the reinforcement holes 1 in the header member 1, die assemblies for punching purposes corresponding to the length of the header member 1 must be prepare, thereby resulting in an increase in the number of types of die assemblies and hence adding to manufacturing costs.

Therefore, the center of the insertion section 7a of the reinforcement member 7 and the center of the reinforcement hole 1b are shifted from each other with respect to the widthwise direction of the header member 1, thus causing a problem of faulty insertion.

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