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evaporator unit

A technology for evaporators and evaporators, applied to evaporators/condensers, compressors with multiple evaporators, indirect heat exchangers, etc., can solve problems such as refrigerant inflow, and achieve the effect of suppressing temperature distribution

Active Publication Date: 2020-11-10
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, distribution occurs also in the refrigerant in the discharge-side distribution space, and a uniform flow rate of refrigerant cannot flow from the discharge-side distribution space into the discharge-side pipes.

Method used

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Experimental program
Comparison scheme
Effect test

no. 1 approach

[0049] Below, use Figures 1 to 12 The first embodiment will be described. as Figure 1 As shown in the overall structure diagram, the evaporator unit 20 of the present embodiment is applied to a vapor compression refrigeration cycle device with an ejector as a refrigerant pressure reducing device, that is, an ejector refrigeration cycle 10. Further, the ejector refrigeration cycle 10 is applied to an air conditioning device for a vehicle and cools the air (supply air) blown to the interior of the vehicle as a cooling object space. Therefore, the cooling target fluid of the evaporator unit 20 of the present embodiment is air.

[0050] In addition, in the ejector refrigeration cycle 10 of the present embodiment, HFC refrigerant (specifically, R134a) is used as the refrigerant to form a subcritical refrigeration cycle in which the refrigerant pressure on the high-pressure side does not exceed the critical pressure of the refrigerant. Further, the refrigerant is mixed with refrigerant ...

no. 2 approach

[0196] In the present embodiment, for example Figure 13 As shown, compared with the first embodiment, a plurality of second discharge side communication holes 93D are arranged at intervals in the length direction of the plate member 93, and the opening area of each second discharge side communication hole 93D is changed.

[0197] More specifically, in the present embodiment, the opening area of each second discharge side communication hole 93D configured in the first area EF1 The opening area of each second discharge side communication hole 93D configured in the third area Ef3 and the opening area of each second discharge side communication hole 93D configured in the fifth area EF5 are larger than the sum of the opening area of the second discharge side communication hole 93D configured in the second area ef2 and the opening area of the second discharge side communication hole 93D configured in the fourth area ef4.

[0198] In addition, Figure 13 It is the same as that described i...

no. 3 approach

[0202] In the present embodiment, for example Figure 14 In embodiment 93D, a second connecting plate is formed on the side of the first connecting plate 93D. In addition, Figure 14 It is the same as that described in the first embodiment Figure 4 Corresponding figure.

[0203] In the present embodiment, the opening shape of the second discharge side communication hole 93D in the first region EF1 to the fifth region EF5 is changed, so that the opening area of the second discharge side communication hole 93D is larger than that of the second region ef2 and the fourth region ef4 in each of the first region EF1, the second region ef2 and the third region Ef3.

[0204] The structure and operation of other evaporator units 20 and ejector refrigeration cycle 10 are the same as those of the first embodiment. Therefore, in the ejector refrigeration cycle 10 of the present embodiment, the same effect as that of the first embodiment can also be obtained.

[0205] Further, even if the second ...

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PUM

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Abstract

The evaporator unit of the present invention includes an ejector (15), a discharge-side evaporator (17), and a suction-side evaporator (18). The discharge-side evaporator has a plurality of discharge-side pipes (71) and discharge-side tanks (72, 73). A discharge-side distribution space (72b) for distributing refrigerant to a plurality of discharge-side pipes is formed in the discharge-side tank. A partition plate (93) is disposed inside the discharge-side distribution space, and the partition plate partitions the discharge-side distribution space into an injector-side distribution space (721b) and a pipe-side distribution space (722b). A communication hole (93d) for communicating the injector-side distribution space and the pipe-side distribution space is formed in the partition plate. The partition plate has a first area (EF1), a second area (EF2), a third area (EF3), a fourth area (EF4) and a fifth area (EF5). The opening areas of the communication holes in the first region, the third region, and the fifth region are larger than the opening areas of the communication holes in the second region and the fourth region, respectively.

Description

[0001] Cross reference of related application [0002] This application is based on Japanese patent application No. 2016-136079 filed on July 8, 2016, and its disclosure is incorporated into this application by reference. technical field [0003] The invention relates to an evaporator unit applied to an ejector refrigeration cycle. Background technology [0004] It is known that there is an ejector refrigeration cycle as a vapor compression refrigeration cycle device, which has an ejector as a refrigerant pressure reducing device. Further, patent document 1 discloses an evaporator unit applied to such an ejector refrigeration cycle. The evaporator unit of patent document 1 is a component that integrates (unites) the ejector, the discharge side evaporation part, the suction side evaporation part, etc. [0005] More specifically, the discharge side evaporation part of the evaporator unit of patent document 1 is a heat exchange part that evaporates the refrigerant flowing out of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B39/02F25B1/00F25B5/04F28D1/053F28F9/02F28F9/22
CPCF25B1/00F25B5/04F25B39/02F28F9/02F28F9/22F28D1/053F28F9/0278F28D1/05391B60H1/3202B60H2001/3298F25B39/022F25B39/028F28D1/05341F28F9/0217F28F9/0253
Inventor 秋吉豪纪文健吾鸟越荣一
Owner DENSO CORP