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A heat exchanger

A technology of heat exchanger and interface, applied in the direction of heat exchanger fixation, heat exchange equipment, lighting and heating equipment, etc., can solve the problem of high cost

Inactive Publication Date: 2007-12-05
TI AJ GRUP AUTOMOUTIV SISTEMZ
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] One problem with evaporators with such welding is that such evaporators are relatively expensive due to the materials required and the number and duration of the manufacturing procedures

Method used

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  • A heat exchanger
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Examples

Experimental program
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Embodiment Construction

[0021] figure 1

[0022] FIG. 1 depicts a refrigeration unit 101 incorporating a refrigeration evaporator 102 . The refrigeration evaporator 102 is mounted on the rear wall of the inner refrigeration compartment wall 103 in the refrigeration compartment 104 so that one side of the refrigeration evaporator 102 is visible in the refrigeration compartment 104 when the door 105 of the refrigeration unit is opened. The refrigerator compartment 104 is typically used for temporary storage and preservation of perishable items, such as consumable foods. The evaporator 102 has the profile of a flat material with a smooth, unmarked surface.

[0023] The refrigeration unit 101 cooperates with the movable shelves 106 and 107 within the refrigerator compartment 104 to maximize the available storage space.

[0024] In this embodiment, the refrigeration unit is a refrigerator. However, in an alternative embodiment, the refrigeration unit is a freezer commercially used to store and display ...

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PUM

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Abstract

A heat exchanger (102) for use in a refrigeration unit (101), comprising a metal plate (201) and a metal tube (202) for containing refrigerant (203). The metal plate (201) has a first face (204) and a second face (205), and the tube (202) is attached to said first face (204) of the metal plate by a plurality of spot welds (405,406). The spot welds are laser spot welds and said welds extend through only a portion of the thickness of the plate (201), such that the second face (205) of the plate is undisturbed by the welds.

Description

technical field [0001] The present invention relates to a heat exchanger for use in a refrigeration unit, a method of making a heat exchanger in a refrigeration unit, and a refrigeration unit including the heat exchanger. Background technique [0002] It is well known that refrigeration units, such as domestic refrigerators, include heat exchangers with metal tubes that convey the refrigerant. The heat exchanger may typically be an evaporator, in which the refrigerant evaporates and absorb the latent heat of evaporation, or a condenser, in which the refrigerant is re-condensed back to a liquid state. It is also known that heat exchanger tubes are attached to metal sheets. In the example where the heat exchanger is used in the evaporator, the metal plate is used to transfer heat from the refrigerator compartment to the pipes containing the refrigerant in which the items are stored. It is known to connect metal pipes to plates by means of brazing. [0003] One problem with ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28F1/22B21D53/08B23K26/22F25B39/00F25D23/00
CPCF28F2275/067B23K2203/04F25B39/00F25D23/006B23K26/22B21D53/085F28F1/22B23K2203/10F25B2339/023B23K2103/04B23K2103/10Y10T29/49364F28F1/12
Inventor B·A·维克隆德G·G·贝里格恩N·良加德
Owner TI AJ GRUP AUTOMOUTIV SISTEMZ