Bending processing method of heat exchanger

A heat exchanger and bending processing technology, applied in the field of heat exchanger bending processing, can solve problems such as inability to bend processing, and achieve the effect of avoiding buckling

Active Publication Date: 2012-10-03
SHANGHAI JIAO TONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when using this method to bend a laminated heat exchanger composed of corrugated fins and flat refrigerant tubes, buckling may sometimes occur between the two gripped parts in the final bending stage of the bending process, which cannot be achieved. Bending into desired shape

Method used

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  • Bending processing method of heat exchanger
  • Bending processing method of heat exchanger
  • Bending processing method of heat exchanger

Examples

Experimental program
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Embodiment Construction

[0051] The bending processing method of the heat exchanger related to the present invention will be described in detail below with reference to the drawings and specific embodiments.

[0052] figure 1 A simplified perspective view showing the internal structure of the outdoor unit 1 of the outdoor heat exchanger 7, which is an embodiment of the heat exchanger bent by the heat exchanger bending method of the present invention. The outdoor unit 1 is an air conditioner that performs air conditioning through a vapor compression refrigeration cycle. The outdoor unit 1 is connected to an indoor unit (not shown in the figure) via refrigerant connecting pipes 2 and 3 . In addition, in the following description, figure 1 The front side of the paper is referred to as the "front", figure 1 The back side of the paper is referred to as the "back side", figure 1 The left side of the page of the figure 1 The right side of the paper is referred to as the "right side", figure 1 The upper...

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Abstract

The invention discloses a bending processing method of a heat exchanger. According to the method, the heat exchanger can be bent only by holding a position of a holding part of the heat exchanger and enabling the holding part to bend according to a ruled track through controlling gestures of the holding part without using a bending mould. At this moment, a contact position of a free part of the heat exchanger which is not held and a guide part is determined by a reacting force generated during the bending process, and no limitation force is generated by the free part which is not held, so that buckling generated by the heat exchanger during the bending process can be avoided. The bending processing method of the heat exchanger, disclosed by the invention, can suppress deformation and buckling of heat transfer fins.

Description

technical field [0001] The present invention relates to a heat exchanger, more specifically, relates to a method of bending at least a part of a flat heat exchanger having a plurality of heat transfer tubes and heat transfer fins between adjacent heat transfer tubes Heat exchanger bending processing method. Background technique [0002] In order to arrange the heat exchanger compactly inside a casing of a predetermined size such as an outdoor unit of an air conditioner, it is necessary to bend the flat heat exchanger into an L-shape or a U-shape. As a method of bending a heat exchanger, a method disclosed in Patent Document 1: Japanese Unexamined Patent Publication No. 6-347186 is known. The bending method of the heat exchanger is a method of winding and pressing a flat heat exchanger composed of heat transfer fins and heat transfer tubes against a bending surface of a bending die to perform bending. [0003] However, in the heat exchanger bending method disclosed in Paten...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D5/04B21D53/08F25B39/00F28F1/32
Inventor 李大永张志伟张卿卿唐鼎王卓藤原明大木户照雄
Owner SHANGHAI JIAO TONG UNIV
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