Variable shunting structure of outdoor heat exchanger

Abstract

The utility model particularly relates to a variable shunting structure of an outdoor heat exchanger, which comprises a first heat exchanger, a second heat exchanger, a first distributor, a second distributor and a first gas collecting pipe, the first heat exchanger is connected with the first distributor, the second heat exchanger is connected with the second distributor, and the first heat exchanger and the second heat exchanger are both connected with the first gas collecting pipe. The first distributor is communicated with the second distributor through a connecting pipe, the first control valve is arranged on the first gas collecting pipe, the first gas collecting pipe is communicated with the second gas collecting pipe, the second control valve is arranged on the second gas collecting pipe, and the third control valve is arranged on the third gas collecting pipe. The second gas collecting pipe is communicated with a connecting pipe between the first distributor and the second distributor through a branch pipe, and a third control valve is arranged on the branch pipe. And through automatic switching operation of the three one-way valves, operation of different flow paths of refrigeration and heating is achieved, so that the optimal flow path design of refrigeration and heating is met at the same time, and the reasonability of the flow path design of the system is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to air conditioner heat exchanger technical field, concretely is an outdoor heat exchanger variable flow structure. BACKGROUND

[0002] In the design process of air conditioner, the flow path optimization design of heat exchanger is the important direction of air conditioner performance promotion, under the condition that the size of air conditioner is determined, the flow path arrangement has the major influence to heat exchanger and whole machine performance. When air conditioner is refrigerated, the outdoor heat exchanger as condenser, the less flow is better, when air conditioner is heated, the more flow of outdoor condenser is better. The optimization design of outdoor unit heat exchanger is different when air conditioner is refrigerated and heated, and proper condensation supercooling design is favorable to improve the refrigeration performance of air conditioner, but is unfavorable to heating, in order to give consideration to the optimal refrigeration and heating performance of heat pump air conditioning unit, improve the rationality of system flow path design, the patent proposes an outdoor heat exchanger variable flow structure. SUMMARY

[0003] The utility model discloses an outdoor heat exchanger variable flow structure, which aims to solve the above technical problems.

[0004] To achieve the above object, the utility model provides the following technical scheme: an outdoor heat exchanger variable flow structure includes first heat exchanger, second heat exchanger, first distributor, second distributor, first gas collecting pipe, the first heat exchanger connects first distributor, the second heat exchanger connects second distributor, the first heat exchanger, second heat exchanger all connect first gas collecting pipe, first distributor and second distributor are communicated through the connecting pipe, still include first control valve, second control valve, third control valve, second gas collecting pipe, be equipped with first control valve on the first gas collecting pipe, the first gas collecting pipe communicates second gas collecting pipe, be equipped with second control valve on the second gas collecting pipe, the second gas collecting pipe communicates the connecting pipe between first distributor and second distributor through the branch pipe, be equipped with third control valve on the branch pipe.

[0005] Preferably, the first control valve, the second control valve and the third control valve are one-way valves.

[0006] Preferably, the utility model further includes an electronic expansion valve connector pipe, the electronic expansion valve connector pipe communicates the second gas collecting pipe and the branch pipe, and an electronic expansion valve is arranged on the electronic expansion valve connector pipe.

[0007] Compared with the prior art, the utility model has the advantages that:

[0008] The utility model realizes refrigeration and heating different flow path operation through the automatic switching of three one-way valves, thereby meeting the optimal flow path design for refrigeration and heating at the same time and improving the rationality of system flow path design. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 The structure principle drawing of the four-way valve non-reversing defrosting structure of the utility model.

[0010] In the drawing: first heat exchanger 1, second heat exchanger 2, first distributor 3, second distributor 4, first gas collecting pipe 5, connecting pipe 6, first control valve 7, second control valve 8, third control valve 9, second gas collecting pipe 10, branch pipe 11, electronic expansion valve connecting pipe 12, electronic expansion valve 13. DETAILED DESCRIPTION

[0011] In order to make the purpose, technical scheme of the utility model carry out clearly, complete description, and the advantage is more clear and distinct, the following combining with the drawing to the utility model embodiment carries out further detailed explanation.Should understand, the specific embodiment described here is a part of the embodiment of the utility model, instead of all the embodiments, only use to explain the embodiment of the utility model, and does not use to limit the embodiment of the utility model, all other embodiments obtained by the ordinary skill in the art without making the creative labor belongs to the scope of the protection of the utility model.

[0012] EMBODIMENT

[0013] Please refer to Figure 1 , a kind of outdoor heat exchanger variable flow structure includes first heat exchanger 1, second heat exchanger 2, first distributor 3, second distributor 4, first gas collecting pipe 5, first heat exchanger 1 is connected first distributor 3, second heat exchanger 2 is connected second distributor 4, first heat exchanger 1, second heat exchanger 2 are connected first gas collecting pipe 5, first distributor 3 and second distributor 4 are communicated by connecting pipe 6, still include first control valve 7, second control valve 8, third control valve 9, second gas collecting pipe 10, first gas collecting pipe 5 is equipped with first control valve 7, first control valve 7 divides first gas collecting pipe 5 into two parts, one part and first heat exchanger 1 is connected, another part and second heat exchanger 2 are connected, first gas collecting pipe 5 is communicated second gas collecting pipe 10, second gas collecting pipe 10 is equipped with second control valve 8, second gas collecting pipe 10 is communicated connecting pipe 6 between first distributor 3 and second distributor 4 by branch pipe 11, the branch pipe 11 is equipped with third control valve 9.

[0014] The first control valve 7, second control valve 8, third control valve 9 of the embodiment are all used one-way valve.

[0015] The outdoor heat exchanger variable flow structure of the embodiment further includes electronic expansion valve connecting pipe 12, electronic expansion valve connecting pipe 12 is communicated second gas collecting pipe 10 and branch pipe 11, and electronic expansion valve connecting pipe 12 is equipped with electronic expansion valve 13.

[0016] Working principle:

[0017] The refrigeration mode is shown as follows:

[0018] In the refrigeration mode, the high-temperature and high-pressure gas discharged by the compressor enters the first heat exchanger 1 through the first gas collecting pipe 5, is condensed in the first heat exchanger 1, forms the refrigerant in the gas-liquid two-phase state, enters the first distributor 3 through the shunt capillary of the first distributor 3, enters the second distributor 4 through the connecting pipe 6, enters the second heat exchanger 2 through the capillary of the second distributor 4, and is condensed to form the supercooled liquid refrigerant.

[0019] The heating mode is shown as follows:

[0020] In the heating mode, the liquid refrigerant enters the third control valve 9 through the electronic expansion valve connecting pipe 12, is divided into two flow paths after passing through the third control valve 9, one of which enters the first distributor 3, is shunted through the shunt capillary of the first distributor 3, enters the first heat exchanger 1 to evaporate and exchange heat, forms the low-temperature and low-pressure gas refrigerant, and enters the second gas collecting pipe 10; the other enters the second distributor 4, is shunted, enters the second heat exchanger 2 to evaporate and exchange heat, forms the low-temperature and low-pressure gas refrigerant, and finally enters the second gas collecting pipe 10 after passing through the first control valve 7.

[0021] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A variable flow distribution structure for an outdoor heat exchanger, comprising a first heat exchanger, a second heat exchanger, a first distributor, a second distributor, and a first gas collection pipe, wherein the first heat exchanger is connected to the first distributor, the second heat exchanger is connected to the second distributor, both the first and second heat exchangers are connected to the first gas collection pipe, and the first and second distributors are connected via a connecting pipe, characterized in that: It also includes a first control valve, a second control valve, a third control valve, and a second gas collection pipe. The first gas collection pipe is equipped with the first control valve and is connected to the second gas collection pipe. The second gas collection pipe is equipped with the second control valve and is connected to the connecting pipe between the first distributor and the second distributor via a branch pipe. The branch pipe is equipped with the third control valve.

2. The variable flow distribution structure of the outdoor heat exchanger according to claim 1, characterized in that: The first control valve, the second control valve, and the third control valve are all one-way valves.

3. The variable flow splitting structure of the outdoor heat exchanger according to claim 1, characterized in that: It also includes an electronic expansion valve connector, which connects the second gas collection pipe and the branch pipe, and is equipped with an electronic expansion valve.

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