Variable shunting structure of outdoor heat exchanger

Abstract

The utility model discloses a variable shunting structure of an outdoor heat exchanger, which comprises a first outdoor heat exchanger, a second outdoor heat exchanger, a first one-way valve, a second one-way valve, a third one-way valve, a first integrated liquid separator, a second integrated liquid separator, a first distributor and a second distributor, one end of the second outdoor heat exchanger is connected with a second integrated liquid separator, the other end of the second outdoor heat exchanger is connected with the gas collecting pipe, the second integrated liquid separator is connected with a second distributor, and the first distributor and the second distributor are both connected with a first one-way valve; a second one-way valve is arranged on the gas collecting pipe between the first outdoor heat exchanger and the second outdoor heat exchanger, and a third one-way valve is connected to the electronic expansion valve connecting-in pipe. Refrigerant flow paths of the refrigerating mode and the heating mode are different, the refrigerating mode flow path is long, the heating mode flow path is short, the heat exchange capacity is not wasted, and the heating capacity is not affected.

Description

Technical Field

[0001] The utility model belongs to the technical field of air conditioners, and particularly relates to a variable flow splitting structure of an outdoor heat exchanger. Background Art

[0002] In traditional outdoor units on the market, when refrigerating and heating, the refrigerant mostly flows through the outdoor heat exchanger in the same flow path. However, in fact, this design has the problem of wasting the capacity of the outdoor heat exchanger when refrigerating; if the flow path of the refrigerant through the outdoor heat exchanger is long enough during refrigeration, a high degree of subcooling of the refrigerant will improve the machine's capacity. But if the flow path of the outdoor heat exchanger is long enough, it is likely to cause overheating during heating, wasting the heat exchange area, and the machine is more likely to frost, thus affecting the heating capacity. The present invention aims to solve the problem of how to make the refrigeration flow path of the outdoor heat exchanger long and the heating flow path short. Summary of the Utility Model

[0003] To solve the problems of the existing same-length flow path design in the above background art, such as wasting the capacity of the heat exchanger during refrigeration, the heating machine being prone to frosting and affecting the heating capacity, the utility model provides a variable flow splitting structure of an outdoor heat exchanger.

[0004] To achieve the above object, the utility model provides the following technical solution: A variable flow splitting structure of an outdoor heat exchanger, including a first outdoor heat exchanger, a second outdoor heat exchanger, a first one-way valve, a second one-way valve, a third one-way valve, a first integrated liquid distributor, a second integrated liquid distributor, a first distributor, and a second distributor. One end of the first outdoor heat exchanger is connected to the first integrated liquid distributor, and the other end is connected to the gas collecting pipe. The first integrated liquid distributor is connected to the first distributor. One end of the second outdoor heat exchanger is connected to the second integrated liquid distributor, and the other end is connected to the gas collecting pipe. The second integrated liquid distributor is connected to the second distributor. Both the first distributor and the second distributor are connected to the first one-way valve. A second one-way valve is arranged on the gas collecting pipe between the first outdoor heat exchanger and the second outdoor heat exchanger. The third one-way valve is connected to the access pipe of the electronic expansion valve.

[0005] Preferably, one end of the first integrated liquid distributor is connected to the first outdoor heat exchanger through a first integrated liquid distribution connecting pipe, and the other end is connected to the first distributor through a first distributor connecting pipe.

[0006] Preferably, there are multiple first integrated liquid distributors, multiple first integrated liquid distribution connecting pipes, and multiple first distributor connecting pipes.

[0007] Preferably, one end of the second integrated liquid distributor is connected to the second outdoor heat exchanger through a second integrated liquid distribution connecting pipe, and the other end is connected to the second distributor through a second distributor connecting pipe.

[0008] Preferably, there are multiple second integrated liquid distributors, multiple second integrated liquid connection pipes, and multiple second distributor connection pipes.

[0009] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0010] The refrigerant flow paths in the refrigeration and heating modes are different. The flow path in the refrigeration mode is long, and the flow path in the heating mode is short, which neither wastes the heat exchange capacity nor affects the heating capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the variable flow splitting structure of the outdoor heat exchanger of the present utility model;

[0012] Figure 2 It is a schematic diagram of the variable flow splitting structure of the outdoor heat exchanger of the present utility model during refrigeration;

[0013] Figure 3 It is a schematic diagram of the variable flow splitting structure of the outdoor heat exchanger of the present utility model during heating.

[0014] In the figure: the first outdoor heat exchanger 1, the second outdoor heat exchanger 2, the first check valve 3, the second check valve 4, the third check valve 5, the first integrated liquid distributor 6, the second integrated liquid distributor 7, the first distributor 8, the second distributor 9, the gas collecting pipe 10, the electronic expansion valve access pipe 11, the first integrated liquid connection pipe 12, the first distributor connection pipe 13, the second integrated liquid connection pipe 14, the second distributor connection pipe 15. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0016] Please refer to Figure 1, the present utility model provides the following technical solutions: A variable shunt structure for an outdoor heat exchanger, comprising a first outdoor heat exchanger 1, a second outdoor heat exchanger 2, a first one-way valve 3, a second one-way valve 4, a third one-way valve 5, a first integrated liquid distributor 6, a second integrated liquid distributor 7, a first distributor 8, and a second distributor 9. One end of the first outdoor heat exchanger 1 is connected to the first integrated liquid distributor 6, and the other end is connected to a gas collecting pipe 10. The first integrated liquid distributor 6 is connected to the first distributor 8. One end of the second outdoor heat exchanger 2 is connected to the second integrated liquid distributor 7, and the other end is connected to the gas collecting pipe 10. The second integrated liquid distributor 7 is connected to the second distributor 9. Both the first distributor 8 and the second distributor 9 are connected to the first one-way valve 3. A second one-way valve 4 is provided on the gas collecting pipe 10 between the first outdoor heat exchanger 1 and the second outdoor heat exchanger 2. The third one-way valve 5 is connected to an electronic expansion valve access pipe 11.

[0017] As a preferred embodiment of this embodiment, one end of the first integrated liquid distributor 6 is connected to the first outdoor heat exchanger 1 through a first integrated liquid distribution connecting pipe 12, and the other end is connected to the first distributor 8 through a first distributor connecting pipe 13.

[0018] As a preferred embodiment of this embodiment, there are multiple first integrated liquid distributors 6, multiple first integrated liquid distribution connecting pipes 12, and multiple first distributor connecting pipes 13.

[0019] As a preferred embodiment of this embodiment, one end of the second integrated liquid distributor 7 is connected to the second outdoor heat exchanger 2 through a second integrated liquid distribution connecting pipe 14, and the other end is connected to the second distributor 9 through a second distributor connecting pipe 15.

[0020] As a preferred embodiment of this embodiment, there are multiple second integrated liquid distributors 7, multiple second integrated liquid distribution connecting pipes 14, and multiple second distributor connecting pipes 15.

[0021] The refrigeration operation mode process is as Figure 2 shown:

[0022] In the refrigeration mode, the high-temperature and high-pressure gas discharged by the compressor enters the first outdoor heat exchanger 1 through the gas collecting pipe 10, is condensed by the first outdoor heat exchanger 1, then enters the first integrated liquid distributor 6 through the first integrated liquid distribution connecting pipe 12 and becomes high-temperature and high-pressure liquid. At this time, it enters the first distributor 8 through the first distributor connecting pipe 13, reaches the second integrated liquid distributor 7 through the first distributor 8, the second distributor 9, and the second distributor connecting pipe 15, flows into the second integrated liquid distribution connecting pipe 14, enters the second outdoor heat exchanger 2 to continue condensation, forming a subcooled liquid refrigerant. At this time, the second one-way valve 4 (the pressure at g is greater than that at d), passes through the gas collecting pipe 10 and enters the third one-way valve 5, and does not pass through the first one-way valve 3 (the pressure at h is greater than that at g), and finally enters the electronic expansion valve connecting pipe 11.

[0023] The process of the heating operation mode is as Figure 3 shown below:

[0024] In the heating mode, the refrigerant enters the first check valve 3 through the electronic expansion valve connection pipe 11. After passing through the first check valve 3, it is divided into two flow paths. One path enters the first distributor 8, and after throttling by the first distributor connection pipe 13 and the first integrated liquid distributor 6, it enters the first outdoor heat exchanger 1 through the first integrated liquid distribution connection pipe 12. After evaporation in the first outdoor heat exchanger 1, it forms a low-temperature and low-pressure refrigerant gas and enters the header pipe 10. The other path enters the second distributor 9, and after throttling by the second distributor connection pipe 15 and the second integrated liquid distributor 7, it enters the second outdoor heat exchanger 2 through the second integrated liquid distribution connection pipe 14. After evaporation in the second outdoor heat exchanger 2, it forms a low-temperature and low-pressure refrigerant gas, and finally enters the header pipe 10 through the second check valve 4.

[0025] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A variable flow splitting structure for an outdoor heat exchanger, characterized in that: It includes a first outdoor heat exchanger, a second outdoor heat exchanger, a first one-way valve, a second one-way valve, a third one-way valve, a first integrated liquid distributor, a second integrated liquid distributor, a first distributor, and a second distributor. One end of the first outdoor heat exchanger is connected to the first integrated liquid distributor, and the other end is connected to the gas collecting pipe. The first integrated liquid distributor is connected to the first distributor. One end of the second outdoor heat exchanger is connected to the second integrated liquid distributor, and the other end is connected to the gas collecting pipe. The second integrated liquid distributor is connected to the second distributor. Both the first distributor and the second distributor are connected to the first one-way valve. A second one-way valve is provided on the gas collecting pipe between the first outdoor heat exchanger and the second outdoor heat exchanger. The third one-way valve is connected to the access pipe of the electronic expansion valve.

2. The variable flow splitting structure of the outdoor heat exchanger according to claim 1, wherein: One end of the first integrated liquid distributor is connected to the first outdoor heat exchanger through a first integrated liquid distribution connecting pipe, and the other end is connected to the first distributor through a first distributor connecting pipe.

3. The variable flow splitting structure of the outdoor heat exchanger according to claim 2, wherein: There are multiple first integrated liquid distributors, multiple first integrated liquid distribution connecting pipes, and multiple first distributor connecting pipes.

4. The variable flow splitting structure of the outdoor heat exchanger according to claim 1, wherein: One end of the second integrated liquid distributor is connected to the second outdoor heat exchanger through a second integrated liquid distribution connecting pipe, and the other end is connected to the second distributor through a second distributor connecting pipe.

5. The variable flow splitting structure of the outdoor heat exchanger according to claim 4, wherein: There are multiple second integrated liquid distributors, multiple second integrated liquid distribution connecting pipes, and multiple second distributor connecting pipes.

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