Heat exchangers and corrugated fins
A heat exchanger, corrugated fin technology, applied in the direction of heat exchange equipment, indirect heat exchanger, heat exchanger type, etc., can solve the problem of not being able to keep the original
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no. 1 approach
[0054] The heat exchanger 1 of the present embodiment is used, for example, as an evaporator constituting a part of a refrigeration cycle for air-conditioning a vehicle interior. The evaporator exchanges heat between the refrigerant that is the first fluid circulating in the refrigeration cycle and the air that is the second fluid that passes through the heat exchanger 1 , and cools the air by latent heat of evaporation of the refrigerant. figure 1 The arrow DRg of the arrow indicates the up-down direction DRg of the heat exchanger 1 .
[0055] Such as figure 1 and figure 2 As shown, the heat exchanger 1 includes a plurality of corrugated fins 10 , a plurality of tubes 20 , first to fourth header tanks 21 to 24 , an outer frame member 25 , a pipe connection member 26 , and the like. These members are made of, for example, an aluminum alloy, and the respective members are joined to each other by brazing. In addition, as will be described later, a plurality of grooves 12b to...
no. 2 approach
[0142] Next, a second embodiment will be described. In this embodiment, differences from the first embodiment described above will be mainly described. In addition, the description of the same or equivalent parts as those of the above-mentioned embodiment will be omitted or simplified. This is also the same in the description after the third embodiment described later.
[0143] Such as Figure 23 As shown, in this embodiment, the directions of the plurality of grooves 12b to 15c provided on the surface of the corrugated fin 10 are different from those in the first embodiment. Specifically, as image 3 As shown, almost all of the grooves 12b to 15c of the above-mentioned first embodiment extend in a direction along the air passing direction AF or in a direction perpendicular thereto. In contrast, as Figure 23 As shown, almost all of the grooves 12b to 15c in this embodiment extend in a direction inclined with respect to the air passing direction AF.
[0144] Except for t...
no. 3 approach
[0146] Next, a third embodiment will be described. In this embodiment, differences from the first embodiment described above will be mainly described.
[0147] Such as Figure 24 As shown, in this embodiment, the louver gap 14 c formed between the louvers 14 arranged in the air passing direction AF is provided in the fin main body portion 13 . The louver gap 14 c is a cut and raised gap formed by cutting and raised the louver 14 , and is adjacent to the louver 14 . In addition, since the louver 14 has a shape extending in the tube array direction DRst, the louver gap 14c also has a shape extending in the tube array direction DRst.
[0148] Since both the corrugated fin 10 of this embodiment and the corrugated fin 10 of the first embodiment have the louvers 14, the point of providing the louver gaps 14c as described above is the same in both the present embodiment and the first embodiment.
[0149] However, in this embodiment, unlike the first embodiment, notches 131c are fo...
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