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Heat exchanger and its manufacturing method

A technology of heat exchangers and manufacturing methods, applied in the direction of heat exchanger types, indirect heat exchangers, lighting and heating equipment, etc., can solve the problems of very expensive leakage reliability, difficult operation, reduction, etc., and achieve low price Effect

Inactive Publication Date: 2007-11-07
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the heat exchanger of the prior art described above has a problem that, although the heat exchange performance can be improved, it is very expensive and the reliability against leakage is reduced.
The reason for this is that the elongated tube 3 is very expensive and requires a process of providing fine round holes for inserting the tube 3 at predetermined fine intervals in the inlet box 1 and the outlet box 2, and inserting and fixing a large number of tubes 3 at the inlet box. process in box 1 and exit box 2, therefore, difficult to operate

Method used

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  • Heat exchanger and its manufacturing method
  • Heat exchanger and its manufacturing method
  • Heat exchanger and its manufacturing method

Examples

Experimental program
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Embodiment approach 1

[0080] FIG. 1 is a front view of a heat exchanger according to Embodiment 1 of the present invention, and FIG. 2 is a side view. Fig. 3 is a sectional view of line A-A in Fig. 1, and Fig. 4 is a sectional view of line B-B in Fig. 2 .

[0081] As shown in FIGS. 1 to 4 , the heat exchanger 100 according to Embodiment 1 has a tube group block 30 composed of tubes 10 and substrates 20 . Furthermore, the two-layer tube group blocks 30 are connected by joining each other on the periphery 90 of the base plate 20 along the tube axis of the tube 10, and the inlet cover 50 and the outlet cover 60 are provided at both ends in the vertical direction.

[0082] In this embodiment, the tube 10 is a round tube and is provided with an internal fluid flow path. Furthermore, the shape of the pipe 10 may not be a round pipe. For example, it may be a tube having a rectangular cross-sectional shape, a polygonal tube, or an elliptical tube. In addition, the peripheries 90 of the substrate 20 are ...

Embodiment approach 2

[0100] Fig. 8 is a front view of a heat exchanger according to Embodiment 2 of the present invention, and Fig. 9 is a side view thereof. FIG. 10 is a sectional view along line C-C in FIG. 8 , and FIG. 11 is a sectional view along line D-D in FIG. 9 .

[0101] In FIGS. 8 to 11 , the heat exchanger 200 has a tube group block 130 composed of tubes 110 and a base plate 120 . Furthermore, the two-layer tube group blocks 130 are connected by jointing on the periphery 190 of the substrate 120 along the tube axis direction of the tube 110, and the inlet cover 150 and the outlet cover 160 are provided at both ends in the vertical direction.

[0102] In Embodiment 2, the cross-sectional shape of the tube 110 is flat, and the plurality of channels 115 are arranged along the longitudinal direction. The plurality of tubes 110 are provided on the substrate 120 so that their longitudinal directions are parallel to each other and at a predetermined interval therebetween. The peripheries 190...

Embodiment approach 3

[0117] Fig. 15 is a front view of a heat exchanger according to Embodiment 3 of the present invention, and Fig. 16 is a side view thereof. FIG. 17 is a sectional view along line A-A in FIG. 16 , and FIG. 18 is a sectional view along line B-B in FIG. 16 . In addition, the same code|symbol is attached|subjected to the same element as Embodiment 1, and the description is simplified.

[0118] In FIGS. 15 to 18 , a heat exchanger 300 has a tube group block 40 composed of tubes 10 , base plates 20 and spacers 80 . Furthermore, the tube group block 40 is stacked in three layers along the flow direction of the internal fluid flowing in the tube 10, and the inlet cover 50 and the outlet cover 60 are provided at both ends in the vertical direction. Here, the spacer 80 is a portion protruding from the substrate in a stepwise manner at the periphery of the substrate 20 with a predetermined height and width.

[0119] In this embodiment, the tube 10 is a round tube and is provided with an...

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Abstract

The invention provides a heat exchanger formed by connecting tube group blocks in a tube axis direction, the tube blocks each having base plates that have a large number of through holes and having tubes whose insides are communicated with the through holes and which are arranged between the base plates. The length of the tubes of each tube group block may be reduced so that the tube group blocks when connected have a predetermined size. Further, the base plates and the tubes can be easily produced at the same time by injection molding, die-casting, etc. to eliminate a process of tube insertion and adhesion. As a result, the heat exchanger has excellent heat exchange performance and can be provided at inexpensive price.

Description

technical field [0001] The present invention relates to a heat exchanger for a cooling system, a heat dissipation system or a heating system, and more particularly to a liquid-gas heat exchanger used in systems requiring miniaturization such as information equipment and a manufacturing method thereof. Background technique [0002] Conventionally, such a heat exchanger is generally composed of tubes and fins. However, in recent years, in order to realize its miniaturization, there is a tendency to increase the density of tubes by reducing the tube diameter and tube pitch. As one example, Japanese Patent Laid-Open Publication No. 2001-116481 (Document 1) discloses a heat exchanger comprising only very thin tubes having a tube outer diameter of about 0.5 mm and constituting a heat exchange section. [0003] FIG. 29 is a front view of a conventional heat exchanger described in Document 1. FIG. [0004] As shown in Fig. 29, the heat exchanger in the prior art includes an inlet b...

Claims

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Application Information

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IPC IPC(8): F28D1/053
Inventor 谷口光德木户长生木下清志奥谷隆
Owner PANASONIC CORP
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