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heat exchanger

A technology for heat exchangers and heat exchange parts, which can be applied in the direction of heat exchanger fixing, heat exchange equipment, indirect heat exchangers, etc., and can solve the problems of large-scale heat exchangers.

Active Publication Date: 2022-05-31
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, in the heat exchanger described in the aforementioned Patent Document 1, since the protrusion is provided between the two core plates, the size of the heat exchanger may be increased.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0042] figure 1 The illustrated refrigeration cycle device 10 is applied to a vehicle air conditioner, and has a function of cooling air blown into the vehicle interior as a cooling target space. The air blown into the vehicle interior is the cooling target fluid of the refrigeration cycle device 10 .

[0043] In the refrigeration cycle apparatus 10, a fluorocarbon-based refrigerant (specifically, R1234yf) is used as a refrigerant, and a subcritical refrigeration cycle is formed in which the pressure of the high-pressure side refrigerant does not exceed the critical pressure of the refrigerant. Furthermore, refrigerating machine oil for lubricating the compressor 11 is mixed with the refrigerant. A portion of the refrigeration oil circulates in the cycle together with the refrigerant.

[0044] The compressor 11 in the components of the refrigeration cycle apparatus 10 sucks the refrigerant, compresses the refrigerant to become a high-pressure refrigerant, and discharges the ...

no. 2 approach

[0127] Next, based on Figure 17 Next, a second embodiment of the present invention will be described. This embodiment is different from the above-described first embodiment in the configurations of the windward side case 31 and the leeward side case 32 .

[0128] like Figure 17 As shown, the windward side claw portion 31c of the windward side case main body portion 31b is provided on the downstream side front end surface 31e of the upstream side front end surface 31d and the downstream side front end surface 31e. That is, the windward side claw portion 31c is not provided on the upstream side front end surface 31d of the windward side case main body portion 31b.

[0129] Similarly, the leeward side claw part 32c of the leeward side case main body part 32b is provided in the downstream side front end surface 32e of the upstream side front end surface 32d and the downstream side front end surface 32e. That is, the leeward side claw part 32c is not provided in the upstream f...

no. 3 approach

[0132] Next, based on Figure 18 Next, a third embodiment of the present invention will be described. This embodiment is different from the above-described first embodiment in the configurations of the windward side case 31 and the leeward side case 32 .

[0133] like Figure 18 As shown, the windward side case 31 and the leeward side case 32 are integrally formed by one core plate 40 as one sheet-like member. That is, the windward side pipe joint portion 31 a , the windward side case main body portion 31 b , the leeward side pipe joint portion 32 a , and the leeward side case main body portion 32 b are integrally formed by one core plate 40 .

[0134] Specifically, the windward side claw portion 31c is formed on the upstream end portion 45 of the core plate 40 in the air flow direction A1. The leeward side claw part 32c is formed in the downstream side end part 46 of the air flow direction A1 on the core board 40. As shown in FIG. A hole portion 42 into which the windward...

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Abstract

The windward side case (31) and the leeward side case (32) respectively have pipe joints (31a, 32a) and box main bodies (31b, 32b) which together with the pipe joints constitute a space in the box. The upwind side pipe joint portion (31a) and the downwind side pipe joint portion (32a) are integrally formed by a core plate (40). The windward side case main body part (31b) and the leeward side case main body part (32b) respectively have the claw parts (31c, 32c) which protrude toward the core part (17a, 18a) side. The core plate is provided with a hole portion (42) into which the claw portion is fitted. The windward side case main body portion and the leeward side case main body portion are fixed to the core plate in a state where the claw portion is fitted into the hole portion. Thereby, miniaturization is achieved in a heat exchanger including a plurality of cores arranged in series with respect to the flow direction of the external fluid.

Description

[0001] Cross-reference to related applications [0002] This application is based on Japanese Patent Application No. 2017-116053 for which it applied on June 13, 2017, the disclosure of which is incorporated herein by reference. technical field [0003] The present invention relates to heat exchangers. Background technique [0004] Conventionally, Patent Document 1 discloses a heat exchanger in which two cores formed by stacking a plurality of tubes are arranged in series with respect to the flow direction of air as an external fluid, and the ends of the tubes in each core are Each core is provided with a separate header box for each core. [0005] In the heat exchanger of Patent Document 1, each header tank includes a core plate in which a pipe insertion hole into which an end portion of a pipe is inserted, and a tank main body are formed in the core plate, and the tank main body is configured together with the core plate. space inside the box. The core plate has a pipe ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28F9/02F25B39/00
CPCF28D1/05391F28D1/0435F28D2021/0084F28F9/0204F28F9/0212F28F9/0224F28F9/18F28F2275/04F28F2275/08F25B39/04B23K2101/14B23K1/0012F25B39/00F28D2021/0085F28F9/02
Inventor 三枝弘加藤淳司藤吉浩信
Owner DENSO CORP