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Bending heat exchanger and bending method of heat exchanger

A heat exchanger and heat exchange unit technology, applied in the direction of heat exchanger types, indirect heat exchangers, heat exchange equipment, etc., can solve problems such as difficulty in adapting to needs, achieve improved heat exchange performance, increase length, and ensure discount The effect of bending accuracy

Active Publication Date: 2017-01-11
ZHEJIANG SANHUA INTELLIGENT CONTROLS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] With the continuous development of technology, customers have put forward higher and higher requirements for the heat transfer performance of the heat exchanger, and the heat exchanger structure disclosed in the above patent has become more and more difficult to meet the current needs

Method used

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  • Bending heat exchanger and bending method of heat exchanger
  • Bending heat exchanger and bending method of heat exchanger
  • Bending heat exchanger and bending method of heat exchanger

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Embodiment Construction

[0040] Please refer to Figure 1 to Figure 6As shown, the present invention discloses a bent heat exchanger 100, which includes a first header 1, a second header 2, several fins 3, connecting the first and second headers 1, Some flat tubes 4 of 2, and some side plates 5. The bent heat exchanger 100 includes a first heat exchange unit 101 and a second heat exchange unit 102 . The flat tube 4 includes a first part 41 located on the first heat exchange unit 101, a second part 42 located on the second heat exchange unit 102, and connecting the first and second parts 41, 42 The middle part (bending part) 43. The first and second headers 1 and 2 are respectively provided with flat tube sockets (not labeled) communicating with the first and second parts 41 and 42 . The first and second parts 41 and 42 are respectively in contact with the fins 3 (in the illustrated embodiment of the present invention, the first and second parts 41 and 42 are brazed with the fins 3 as One). The mi...

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Abstract

The invention discloses a bending heat exchanger and a bending method of the heat exchanger. The bending heat exchanger comprises a first collecting pipe, a second collecting pipe, a plurality of fins and a plurality of flat pipes. Each flat pipe comprises a first portion, a second portion and a middle portion connected with the first portion and the second portion; and the first portions and the second portions are in contact with the fins respectively. Each middle portion comprises a first twisting portion, a second twisting portion and a straightness portion, wherein the first twisting portion is connected with the corresponding first portion, the second twisting portion is connected with the corresponding second portion, and the straightness portion is connected with the first twisting portion and the second twisting portion. The straightness portions of the flat pipes are sequentially overlapped partly and are sequentially and tightly attached together. Each straightness portion comprises an inner surface and an outer surface, and the inner surfaces and the outer surfaces of the straightness portions are flat on the flat. According to the arrangement, the bending precision can be ensured, and in addition, the flat bending portions can reduce the height of the bending heat exchanger; and under the condition of the same length of the flat pipes, the length of fin segments is increased, and therefore the heat exchange performance of the heat exchanger can be improved.

Description

technical field [0001] The invention relates to a bending heat exchanger and a bending method of the heat exchanger, belonging to the field of air-conditioning heat exchangers. Background technique [0002] In recent decades, automotive air conditioners have developed rapidly, accounting for the second place in air conditioning machinery. As one of the four main components of automotive air conditioning, the heat exchanger also needs to be improved and optimized according to market requirements. Because the parallel flow heat exchanger has the characteristics of high cooling efficiency, small size, light weight, etc., it can well meet the requirements of the market, and has been gradually used in automotive air-conditioning systems in recent years. [0003] Traditional microchannel heat exchangers mainly include microchannel flat tubes, cooling fins and headers. There are headers at both ends of the microchannel flat tubes for distributing and collecting refrigerant. Corr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28D1/04B21D53/08
Inventor 不公告发明人
Owner ZHEJIANG SANHUA INTELLIGENT CONTROLS CO LTD
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