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Heat exchanger and method for manufacturing heat exchanger

A manufacturing method and technology of heat exchangers, applied in the direction of indirect heat exchangers, heat exchanger types, manufacturing tools, etc., can solve problems such as the inapplicability of aluminum tubes, and achieve good heat transfer performance

Inactive Publication Date: 2014-11-19
DANFOSS MICRO CHANNEL HEAT EXCHANGER JIAXING
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the mechanical expansion technology is greatly affected by the diameter of the heat exchange tube. Currently, it can only be applied to copper tubes with a diameter larger than a certain diameter (for example, larger than 7mm), and this technology is not suitable for aluminum tubes.

Method used

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  • Heat exchanger and method for manufacturing heat exchanger
  • Heat exchanger and method for manufacturing heat exchanger
  • Heat exchanger and method for manufacturing heat exchanger

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0030] Figure 1A and 1B A heat exchanger 100 according to an embodiment of the invention is shown. like Figure 1A and 1B As shown, the heat exchanger 100 includes heat exchange tubes 10 and fins 20 . The heat exchange tube 10 can have any cross-sectional shape, and can be a round tube or a flat tube, or a non-round tube of other shapes. The diameter of the heat exchange tube 10 may be less than 7mm. The heat exchanger 100 can be used in HVAC, automobile, refrigeration and transportation fields, and can be used in heat exchangers such as evaporators, condensers, heat pump heat exchangers and water tanks. The heat exchange tubes and fins are connected by brazing. The heat exchange tubes and fins can be made of aluminum alloy or other alloy materials.

[0031] like Figures 2 to 4 As shown, the fin 20 includes: a fin body 21, a fin hole 2...

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Abstract

The invention provides a heat exchanger and a method for manufacturing the heat exchanger. The heat exchanger comprises heat exchange tubes, fins and welding materials, wherein each fin comprises a fin body, fin holes which are formed in the fin body and used for containing the heat exchange tubes and fin hole turned edges which extend from the edges of the fin holes to one side of the fin body; the welding materials are used for welding the fin hole turned edges of the fin bodies and the heat exchange tubes. According to the technical scheme of the heat exchanger, the problem that production cannot be conducted due to the fact that a current heat exchanger with a small tube diameter cannot expand can be solved; meanwhile, the welding technology is adopted for the fins and the heat exchange tubes, so that the heat exchanger has excellent heat transfer performance.

Description

technical field [0001] The invention relates to a heat exchanger and a manufacturing method of the heat exchanger. Background technique [0002] For the same heat exchanger size, the smaller the hydraulic diameter of the heat exchange tube, the higher the heat exchange performance and the lower the material cost. However, the mechanical tube expansion technology is greatly affected by the diameter of the heat exchange tube, and currently it can only be applied to copper tubes with a diameter larger than a certain diameter (for example, larger than 7mm), and this technology is not suitable for aluminum tubes. Contents of the invention [0003] The object of the present invention is to provide a heat exchanger and a method of manufacturing the heat exchanger, whereby, for example, not only the heat transfer performance of brazing can be ensured, but also small-diameter heat exchangers can be manufactured. [0004] According to one aspect of the present invention, the presen...

Claims

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Application Information

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IPC IPC(8): F28D1/04F28F1/32B23K1/00B23K101/14B23K101/08
CPCF28D1/053F28F1/12
Inventor 蒋建龙陈红兵
Owner DANFOSS MICRO CHANNEL HEAT EXCHANGER JIAXING
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