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Heat exchanger and air conditioner

A technology for heat exchangers and heat exchange parts, applied in the fields of heat exchangers and air conditioners, can solve problems such as insufficient performance of condensers

Active Publication Date: 2013-10-09
DAIKIN IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The heat exchangers disclosed in the above-mentioned Patent Documents 1 and 2 have the following problem: if the number of flat tubes is increased to increase the flow rate of the refrigerant, the total header will be longer, and the performance as a condenser cannot be fully obtained.

Method used

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  • Heat exchanger and air conditioner
  • Heat exchanger and air conditioner
  • Heat exchanger and air conditioner

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0055] The first embodiment of the present invention will be described. The heat exchanger in this embodiment is the outdoor heat exchanger 23 provided in the air conditioner 10.

[0056] -Air conditioning equipment-

[0057] Reference figure 1 The air conditioner 10 is described.

[0058]

[0059] The air conditioner 10 includes an outdoor unit 11 and an indoor unit 12. The outdoor unit 11 and the indoor unit 12 are connected to each other via a liquid side connection pipe 13 and a gas side connection pipe 14. In the air conditioner 10, the outdoor unit 11, the indoor unit 12, the liquid side connecting pipe 13 and the air side connecting pipe 14 form a refrigerant circuit 20.

[0060] A compressor 21, a four-way switching valve 22, an outdoor heat exchanger 23, an expansion valve 24, and an indoor heat exchanger 25 are provided in the refrigerant circuit 20. The compressor 21, the four-way reversing valve 22, the outdoor heat exchanger 23 and the expansion valve 24 are installed ...

no. 2 approach

[0113] The second embodiment of the present invention will be described. This embodiment is obtained by changing the structure of the outdoor heat exchanger 23 of the first embodiment. Here, refer appropriately Figure 7 versus Figure 8 The difference between the outdoor heat exchanger 23 of this embodiment and the first embodiment described above will be described.

[0114] Such as Figure 7 As shown, the flat tube 33 of the outdoor heat exchanger 23 is divided up and down into an upper heat exchange area 51 and a lower heat exchange area 52 as in the aforementioned first embodiment. The upper heat exchange area 51 is divided into three main heat exchange parts 51a-51c arranged up and down, and the lower heat exchange area 52 is constituted by one auxiliary heat exchange part 52a. That is, in the upper heat exchange area 51, a first main heat exchange portion 51a, a second main heat exchange portion 51b, and a third main heat exchange portion 51c are formed in order from botto...

no. 3 approach

[0135] The third embodiment of the present invention will be described. The present embodiment is obtained by changing the structure of the second manifold 70 of the outdoor heat exchanger 23 of the above-mentioned first embodiment, and the structure other than that is the same as the first embodiment. In this embodiment, appropriately refer to Picture 11 versus Picture 12 , Only the structure of the second manifold 70 of the outdoor heat exchanger 23 will be described.

[0136] Such as Picture 12 As shown, the internal space of the second manifold 70 of the outdoor heat exchanger 23 is divided by two partitions 39 left and right to divide three communication spaces 71a-71c. Specifically, in the internal space of the second manifold 70, press Picture 12 In order from the right side to the left side, a first communication space 71a, a second communication space 71b, and a third communication space 71c are formed. The first communication space 71a communicates with the ends of...

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Abstract

An upper-side heat exchange region (51) is divided into a plurality of principal heat exchange sections (51a-51c), and a lower-side heat exchange region (52) is divided into a plurality of auxiliary heat exchange sections (52a-52c). A first header / collector tube (60) is partitioned into an upper-side space (61) corresponding to the upper-side heat exchange region (51) and a lower-side space (62) corresponding to the lower-side heat exchange region (52). The lower-side space (62) is partitioned into a plurality of connection spaces (62a-62c) corresponding to each of the auxiliary heat exchange sections (52a-52c). The second header-collector tube (70) is partitioned into: a connection space (71c) jointly corresponding to both the lowest of the principal heat exchange sections (51a) in the upper-side heat exchange region (51) and the highest of the auxiliary heat exchange sections (52c) in the lower-side heat exchange region (52); and connection spaces (71a, 71b, 71d, 71e) respectively corresponding to the remaining principal heat exchange sections (51b, 51c) and auxiliary heat exchange sections (52a, 52b). A connecting tube (72) connects the connection space (71a) and the connection space (71d), while a connecting tube (73) connects the connection space (71b) and the connection space (71e).

Description

Technical field [0001] The present invention relates to a heat exchanger including a pair of header pipes and a plurality of flat tubes connected to the header pipes, a heat exchanger that allows fluid and air flowing in the flat pipes to exchange heat, and an air conditioner including the heat exchanger . Background technique [0002] So far, a heat exchanger including a pair of manifolds and a plurality of flat tubes connected to the manifolds has been known to everyone. Patent Documents 1 and 2 disclose such heat exchangers. Specifically, in the heat exchangers disclosed in Patent Documents 1 and 2, one manifold is erected on the left and right ends of the heat exchanger, and a plurality of flat tubes are arranged to straddle the first manifold and The second collection tube. In addition, the heat exchangers disclosed in Patent Documents 1 and 2 exchange heat between the refrigerant flowing inside the flat tube and the air flowing outside the flat tube. [0003] The refriger...

Claims

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Application Information

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IPC IPC(8): F28F9/02F28F9/22F28F9/26
CPCF28D1/05391F28F1/126F25B39/00F28F9/02F28F2215/12F28F2250/06F28F9/0209F28D2021/0068F28F9/22F28F9/26F28F9/0275
Inventor 神藤正宪织谷好男藤野宏和镰田俊光
Owner DAIKIN IND LTD
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