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Method of manufacturing heat exchanger and heat exchanger

A technology for heat exchangers and manufacturing methods, which can be applied to heat exchange equipment, manufacturing tools, indirect heat exchangers, etc., and can solve problems such as reduced heat exchange performance.

Inactive Publication Date: 2007-08-08
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this results in a reduction in heat exchange performance

Method used

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  • Method of manufacturing heat exchanger and heat exchanger
  • Method of manufacturing heat exchanger and heat exchanger
  • Method of manufacturing heat exchanger and heat exchanger

Examples

Experimental program
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Embodiment Construction

[0022] Embodiments of the present invention will now be described with reference to FIGS. 1 to 6 . Figure 1 shows an intercooler 100 for cooling air that has been boosted in a supercharger before being drawn into the engine, the intercooler 100 acting as a heat exchanger.

[0023] The intercooler 100 has a core 120 and a pair of header tanks 110 . The core 120 has tubes 122, outer fins 121 for heat dissipation, and side plates 124 as core reinforcing members. The tubes 122 and the outer fins 121 are stacked alternately, and the side plates 124 are connected to the outer fins 121 at ends (upper and lower ends in FIG. 1 ). The tubes 122, the outer fins 121 and the side plates 124 are brazed integrally.

[0024] The header tank 110 is arranged at the ends 122a (left and right ends in FIG. 1 ) of the pipe 122 . Each header tank 110 extends in a direction perpendicular to the longitudinal direction of the tube 122 and communicates with a passage defined in the tube 122 . As sho...

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Abstract

A heat exchanger has a core including tubes and a core plate coupled to the core. The core plate has a coupling wall on which tube insertion holes are formed for receiving ends of the tubes. The coupling wall has an end portion and a clearance portion both coupled to the tubes. The clearance portion is integrally connected to the end portion and spaced from an imaginary plane, on which the end portion is located. A paste brazing material is applied to a joining portion between the core plate and each tube by a brazing material applying device through a space provided between the clearance portion and the imaginary plane.

Description

technical field [0001] The invention relates to a method of manufacturing a heat exchanger and a heat exchanger manufactured by said method. Background technique [0002] In general, a heat exchanger has: a core made up of a stack of tubes and fins; and a pair of header tanks at the ends of the core. For example, in Japanese Unexamined Patent Publication No. 2005-118826 (US2005 / 0082350), the header tank is constituted by a tank main body and a core plate. The core is generally box-shaped in shape, with the core being closed on one side and open on the other. The core plate is connected to the box body such that the open end is joined to the box body. The core plate has tube insertion holes formed on the flat plate portion of the closed end. The ends of the above-mentioned tubes are inserted and brazed to the above-mentioned tube insertion holes. [0003] In this heat exchanger, the core plate and the ends of the tubes are brazed, for example, in the following manner. Fi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K1/00B23K1/20B23K3/06B23K35/28F28D1/053B23K101/14
CPCB23P15/26B23K1/0012F28D1/05366F28F9/18F28D2021/0082F28F9/0224B23K2201/14B23K2101/14
Inventor 渡边晴彦须佐澄男原田真树
Owner DENSO CORP