CN219346629U

CN219346629U - Air conditioning system

Info

Publication number: CN219346629U
Application number: CN202320203739.7U
Authority: CN
Inventors: 王远鹏
Original assignee: Qingdao Hisense Hitachi Air Conditioning System Co Ltd
Current assignee: Qingdao Hisense Hitachi Air Conditioning System Co Ltd
Priority date: 2023-02-10
Filing date: 2023-02-10
Publication date: 2023-07-14
Anticipated expiration: 2033-02-10

Abstract

The utility model discloses an air conditioning system, relates to the technical field of air conditioners, and is beneficial to reducing noise generated indoors when the air conditioning system is defrosted. The air conditioning system includes: the water side heat exchanger comprises a first heat exchange flow path and a second heat exchange flow path which exchange heat with each other, the first end of the first heat exchange flow path is selectively connected with one of the air suction port and the air exhaust port through the second reversing component, and the second end of the first heat exchange flow path is connected to a pipeline between the first throttling device and the first stop valve through the second throttling device.

Description

Air conditioning system

Technical Field

The utility model relates to the technical field of air conditioners, in particular to an air conditioning system.

Background

In the related art, an air conditioning system defrost an outdoor heat exchanger in a reverse defrosting manner. The high-temperature and high-pressure refrigerant discharged by the compressor flows to the outdoor heat exchanger, the outdoor heat exchanger absorbs heat to defrost, then flows through the throttling device and the indoor unit in sequence, and finally is sucked into the compressor. Because the refrigerant must flow through the indoor unit in the reverse defrosting process, abnormal refrigerant flowing sound can occur indoors, and the use experience of a user is affected.

Disclosure of Invention

The embodiment of the utility model provides an air conditioning system, which is beneficial to reducing noise generated in a room when the air conditioning system is defrosted.

In order to achieve the above purpose, the embodiment of the present utility model adopts the following technical scheme:

an embodiment of the present application provides an air conditioning system, including: the device comprises a compressor, a first reversing assembly, an indoor heat exchanger, an outdoor heat exchanger, a first stop valve, a first throttling device, a water side heat exchanger and a second throttling device, wherein the compressor is provided with an air suction port and an air exhaust port; the first reversing assembly is provided with first to fourth valve ports, the first valve port is connected with the exhaust port, the fourth valve port is connected with the air suction port, the first valve port is in reversing conduction with one of the second valve port and the third valve port, and the fourth valve port is in reversing conduction with the other of the second valve port and the third valve port; the first end of the indoor heat exchanger is connected with the second valve port; the first end of the outdoor heat exchanger is connected with the third valve opening, and the second end of the outdoor heat exchanger is connected with the second end of the indoor heat exchanger through the first throttling device; the first stop valve is arranged on a pipeline between the second end of the indoor heat exchanger and the first throttling device; the water side heat exchanger comprises a first heat exchange flow path and a second heat exchange flow path which exchange heat with each other, wherein the first end of the first heat exchange flow path is selectively connected with one of the air suction port and the air exhaust port through a second reversing assembly, the second end of the first heat exchange flow path is connected to a pipeline between the first throttling device and the first stop valve through a second throttling device, and the second heat exchange flow path is used for being connected with a water device.

According to the air conditioning system provided by the embodiment of the application, the water side heat exchanger is added in the air conditioning system, the first end of the first reversing flow path of the water side heat exchanger is selectively connected with one of the air suction port and the air exhaust port through the second reversing assembly, and the second end of the first heat exchange flow path is connected to a pipeline between the first throttling device and the first stop valve through the second throttling device. Therefore, when the air conditioning system defrost the outdoor heat exchanger, the first reversing component reverses, the first end of the first heat exchange flow path can be selectively connected with the air suction port, and the first stop valve is closed. The refrigerant flows out from the exhaust port of the compressor, flows to the outdoor heat exchanger after passing through the first reversing assembly, flows to the water side heat exchanger after defrosting the outdoor heat exchanger through the second throttling device, and finally flows into the air suction port of the compressor. Therefore, the outdoor heat exchanger can be defrosted by using the hot water of the water side heat exchanger, and the water in the second heat exchange flow path of the water side heat exchanger can be prevented from being frozen in the defrosting process. Simultaneously, the refrigerant flow direction of the air conditioning system can be avoided when the air conditioning system is defrosted, and abnormal refrigerant flow sound in the room can be avoided when the air conditioning system is defrosted, so that noise generated in the room by the air conditioning system can be reduced, and the use experience of a user can be improved.

In some embodiments, the second reversing assembly has first to third interfaces, the first interface being connected to the exhaust port, the second interface being connected to the first end of the first heat exchange flow path, the third interface being connected to the suction port, the second interface being in reversing communication with one of the first interface and the third interface.

In some embodiments, the second reversing component is an electromagnetic four-way valve.

In some embodiments, the second reversing component is an electromagnetic three-way valve.

In some embodiments, the second reversing assembly includes a first on-off valve disposed on a line between the first end of the first heat exchange flow path and the exhaust port and a second on-off valve disposed on a line between the first end of the first heat exchange flow path and the suction port.

In some embodiments, the first on-off valve and the second on-off valve are both solenoid valves.

In some embodiments, a temperature detection device is further included for detecting a temperature of the fluid within the second heat exchange flow path.

In some embodiments, the first and second restriction devices are each electronic expansion valves.

In some embodiments, a second shut-off valve is disposed on the conduit between the first end of the indoor heat exchanger and the first reversing assembly.

In some embodiments, the valve further comprises a gas-liquid separator disposed between the compressor and the first reversing assembly, the gas-liquid separator having a liquid inlet connected to the fourth valve port and a gas outlet connected to the suction port.

Drawings

Fig. 1 is a schematic diagram of a first air conditioning system according to an embodiment of the present disclosure;

fig. 2 is a schematic diagram of a refrigeration mode of an air conditioning system according to an embodiment of the present application;

fig. 3 is a schematic diagram of a heating mode of an air conditioning system according to an embodiment of the present application;

fig. 4 is a schematic diagram of a hot water mode of an air conditioning system according to an embodiment of the present disclosure;

fig. 5 is a schematic diagram of a hot water defrosting mode of an air conditioning system according to an embodiment of the present application;

fig. 6 is a schematic diagram of a second air conditioning system according to an embodiment of the present disclosure;

fig. 7 is a schematic diagram of the composition of a third air conditioning system according to an embodiment of the present disclosure;

fig. 8 is a schematic diagram of a fourth air conditioning system according to an embodiment of the present disclosure;

fig. 9 is a schematic diagram of a fifth air conditioning system according to an embodiment of the present disclosure;

fig. 10 is a schematic diagram of a sixth air conditioning system according to an embodiment of the present application.

Reference numerals:

100. an air conditioning system;

1. a compressor; 11. an air suction port; 12. an exhaust port;

2. a first reversing assembly; 21. a first valve port; 22. a second valve port; 23. a third valve port; 24. a fourth valve port;

3. an indoor heat exchanger; 31. a first stop valve; 32. a second shut-off valve;

4. an outdoor heat exchanger;

5. a water side heat exchanger; 51. a first heat exchange flow path; 52. a second heat exchange flow path;

6. a first throttle device;

7. a second throttle device;

8. a gas-liquid separator; 81. a gas outlet; 82. a liquid inlet;

9. a second reversing assembly; 91. a first interface; 92. a second interface; 93. a third interface; 94. a fourth interface; 95. a reflow device; 96. a first on-off valve; 97. and a second on-off valve.

Detailed Description

Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In order to solve the technical problem, a water side heat exchanger is added in an air conditioning system, so that a first end of a first reversing flow path of the water side heat exchanger is selectively connected with one of an air suction port and an air exhaust port through a second reversing assembly, and a second end of the first heat exchange flow path is connected to a pipeline between a first throttling device and a first stop valve through a second throttling device. Therefore, when the air conditioning system defrost the outdoor heat exchanger, the first reversing component reverses, the first end of the first heat exchange flow path can be selectively connected with the air suction port, and the first stop valve is closed. The refrigerant flows out from the exhaust port of the compressor, flows to the outdoor heat exchanger after passing through the first reversing assembly, flows to the water side heat exchanger after defrosting the outdoor heat exchanger through the second throttling device, and finally flows into the air suction port of the compressor. Therefore, the outdoor heat exchanger can be defrosted by using the hot water of the water side heat exchanger, and the water in the second heat exchange flow path of the water side heat exchanger can be prevented from being frozen in the defrosting process. Simultaneously, the refrigerant flow direction of the air conditioning system can be avoided when the air conditioning system is defrosted, and abnormal refrigerant flow sound in the room can be avoided when the air conditioning system is defrosted, so that noise generated in the room by the air conditioning system can be reduced, and the use experience of a user can be improved.

The following describes an air conditioning system according to an embodiment of the present application.

Referring to fig. 1, fig. 1 is a schematic diagram illustrating a first air conditioning system according to an embodiment of the present application. The embodiment of the application provides an air conditioning system 100, including: a compressor 1, a first reversing assembly 2, a second reversing assembly 9, an indoor heat exchanger 3, an outdoor heat exchanger 4, a first stop valve 31 and a water side heat exchanger 5.

With continued reference to fig. 1, the compressor 1 has an intake 11 and an exhaust 12. Specifically, the discharge port 12 of the compressor 1 discharges a high-temperature and high-pressure refrigerant, and the suction port 11 of the compressor 1 sucks air. The refrigerant enters the compression chamber of the compressor 1 through the air suction port 11 to be compressed, so as to form a high-temperature and high-pressure refrigerant, the high-temperature and high-pressure refrigerant gas is discharged out of the compressor 1 from the air discharge port 12 of the compressor 1, the refrigerant gas entering the air conditioning system 100 is discharged out of the compressor from the air discharge port 12 of the compressor 1, and the refrigerant gas enters the air conditioning system 100 to circulate.

By way of example, the compressor 1 may be a scroll compressor, a rotor compressor, a screw compressor or other type of compressor.

With continued reference to fig. 1, the first reversing assembly 2 has a first port 21, a second port 22, a third port 23, and a fourth port 24. The first valve port 21 is connected with the exhaust port 12, the fourth valve port 24 is connected with the air suction port 11, one of the first valve port 21 and the second valve port 22 and the third valve port 23 is conducted in a reversing manner, and the fourth valve port 24 is conducted in a reversing manner with the other of the second valve port 22 and the third valve port 23. That is, when the first valve port 21 is in conduction with the second valve port 22, the third valve port 23 is in conduction with the fourth valve port 24; when the first port 21 is in communication with the third port 23, the second port 22 is in communication with the fourth port 24.

The first reversing assembly 2 may be a four-way reversing valve, for example. The four-way reversing valve can have two states of opening and closing, when the four-way reversing valve is powered on, the four-way reversing valve is opened, the first valve port 21 is communicated with the second valve port 22, and the third valve port 23 is communicated with the fourth valve port 24; when the four-way reversing valve is powered off, the four-way reversing valve is closed, the first valve port 21 is communicated with the third valve port 23, and the second valve port 22 is communicated with the fourth valve port 24. Of course, it will be appreciated that in other examples, when the four-way reversing valve is de-energized, the first port 21 is in communication with the second port 22, and the third port 23 is in communication with the fourth port 24; when the four-way reversing valve is electrified, the first valve port 21 is communicated with the third valve port 23, and the second valve port 22 is communicated with the fourth valve port 24.

With continued reference to fig. 1, the first end of the indoor heat exchanger 3 is connected to the second valve port 22. Thus, when the first valve port 21 and the second valve port 22 are connected, the high-temperature and high-pressure refrigerant discharged from the exhaust port 12 can flow to the indoor heat exchanger 3; when the second port 22 and the fourth port 24 are connected, the refrigerant flowing out of the indoor heat exchanger 3 can flow back to the suction port 11.

With continued reference to fig. 1, the first end of the outdoor heat exchanger 4 is connected to the third valve port 23. The second end of the outdoor heat exchanger 4 is connected to the second end of the indoor heat exchanger 3 by a first throttling means 6. Thus, when the first valve port 21 is in communication with the third valve port 23, the high-temperature and high-pressure refrigerant discharged from the exhaust port 12 can flow to the outdoor heat exchanger 4, flow to the first throttle device 6 after heat exchange in the outdoor heat exchanger 4 is completed, and flow from the first throttle device 6 to the indoor heat exchanger 3. When the third port 23 and the fourth port 24 are in conduction, the refrigerant flowing out of the indoor heat exchanger 3 flows to the first throttle device 6, flows to the outdoor heat exchanger 4, and flows from the outdoor heat exchanger 4 to the intake port 11 of the compressor 1.

With continued reference to fig. 1, a first stop valve 31 is disposed in the conduit between the second end of the indoor heat exchanger 3 and the first restriction device 6. Thereby, the flow of the refrigerant between the outdoor heat exchanger 4 and the indoor heat exchanger 3 can be controlled by the first shutoff valve 31. Illustratively, when the first shut-off valve 31 is opened, the refrigerant of the outdoor heat exchanger 4 may flow to the indoor heat exchanger 3, or the refrigerant of the indoor heat exchanger 3 may flow to the outdoor heat exchanger 4; when the first stop valve 31 is closed, the refrigerant of the indoor heat exchanger 3 cannot flow to the outdoor heat exchanger 4, and the refrigerant of the outdoor heat exchanger 4 cannot flow to the indoor heat exchanger 3, thereby being beneficial to improving the reliability of the control of the air conditioning system 100.

In other embodiments, the first shut-off valve 31 may be a throttle device on the side of the indoor heat exchanger 3. When the throttle device is fully closed, the refrigerant flowing out of the outdoor heat exchanger cannot flow to the indoor heat exchanger.

With continued reference to fig. 1, the water side heat exchanger 5 includes a first heat exchange flow path 51 and a second heat exchange flow path 52 that exchange heat with each other. A first end of the first heat exchange flow path 51 is selectively connected to one of the suction port 11 and the exhaust port 12 through the second reversing assembly 9. Thus, when the first end of the first heat exchange flow path 51 is connected to the exhaust port 12, the high-temperature and high-pressure refrigerant discharged from the exhaust port 12 can flow into the first heat exchange flow path 51. When the first end of the first heat exchange flow path 51 is connected to the suction port 11, the refrigerant in the first heat exchange flow path 51 may flow back to the suction port 11 of the compressor 1.

The second end of the first heat exchange flow path 51 is connected to a line between the first throttle device 6 and the first shutoff valve 31 via the second throttle device 7. Thus, when the first shutoff valve 31 is opened, the refrigerant can flow between the first heat exchange flow path 51, the indoor heat exchanger 3, and the outdoor heat exchanger 4. When the first shutoff valve 31 is closed, the refrigerant can flow between the first heat exchange flow path 51 and the indoor heat exchanger 3.

The second heat exchange flow path 52 is for connection to a water using device. Therefore, through the heat exchange of the first heat exchange flow path 51 and the second heat exchange flow path 52, the temperature of the water in the second heat exchange flow path 52 can be increased or decreased, so that a user can obtain hot water or cold water according to the needs, and the use experience of the user is improved.

Illustratively, the water-using device may be a floor heater, a water tank, or the like.

According to the air conditioning system 100 provided in the embodiment of the present application, by adding the water side heat exchanger 5 to the air conditioning system 100, the first end of the first reversing flow path of the water side heat exchanger 5 is selectively connected to one of the air inlet 11 and the air outlet 12 through the second reversing assembly 9, and the second end of the first heat exchange flow path 51 is connected to the pipeline between the first throttling device 6 and the first stop valve 31 through the second throttling device 7. Whereby the air conditioning system 100 commutates the first commutation assembly 2 when defrosting the outdoor heat exchanger 4, the first end of the first heat exchanging channel 51 can be selectively connected to the suction port 11, and the first shut-off valve 31 is closed. The refrigerant flows out from the exhaust port 12 of the compressor 1, flows into the outdoor heat exchanger 4 after passing through the first reversing assembly 2, flows into the water side heat exchanger 5 after defrosting the outdoor heat exchanger 4 through the second throttling device 7, and finally flows into the air intake port 11 of the compressor 1. This allows the outdoor heat exchanger 4 to defrost with the hot water of the water-side heat exchanger 5, and prevents the water in the second heat exchange flow path 52 from freezing during defrosting of the water-side heat exchanger 5. Meanwhile, when the air conditioning system 100 is defrosted, the refrigerant flows to the indoor heat exchanger 3, so that abnormal refrigerant flowing sound in the room can be avoided when the air conditioning system 100 is defrosted, noise generated in the room by the air conditioning system 100 can be reduced, and the use experience of a user can be improved.

The air conditioning system 100 according to the embodiment of the present application has a cooling mode, a heating mode, a hot water mode, a normal defrosting mode, a hot water defrosting mode, and a heating hot water mode. The cooling mode, heating mode, hot water mode, normal defrost mode, hot water defrost mode and heating hot water mode of the embodiments of the present application are described below.

Refrigeration mode

Referring to fig. 2, fig. 2 is a schematic diagram of a cooling mode of an air conditioning system according to an embodiment of the present application. When the air conditioning system 100 is in the cooling mode, the first valve port 21 of the first reversing assembly 2 is communicated with the third valve port 23, the second valve port 22 is communicated with the fourth valve port 24, and the second throttling device 7 is not throttled.

The flow direction of the refrigerant is as follows: the high-temperature and high-pressure gaseous refrigerant discharged from the discharge port 12 of the compressor 1 flows into the first reversing assembly 2 through the first valve port 21, and flows out of the first reversing assembly 2 through the third valve port 23. The refrigerant flowing out of the third valve port 23 flows into the outdoor heat exchanger 4, and changes into a high-temperature and high-pressure liquid refrigerant after heat exchange in the outdoor heat exchanger 4. The refrigerant flowing out of the outdoor heat exchanger 4 is throttled and depressurized by a throttling device positioned at one side of the indoor heat exchanger 3 to become a low-temperature low-pressure liquid refrigerant, then flows into the indoor heat exchanger 3 from the throttling device, exchanges heat in the indoor heat exchanger 3 to become a low-temperature low-pressure gaseous refrigerant, and finally flows back to the air suction port 11 of the compressor 1 through the second valve port 22 and the fourth valve port 24 in sequence.

Heating mode

Referring to fig. 3, fig. 3 is a schematic diagram of a heating mode of an air conditioning system according to an embodiment of the present application. When the air conditioning system 100 is operating in the heating mode, the first port 21 of the first reversing assembly 2 is in communication with the second port 22, the third port 23 is in communication with the fourth port 24, the first restriction device 6 is restricting, and the second restriction device 7 is not restricting.

The flow direction of the refrigerant is as follows: the high-temperature and high-pressure gaseous refrigerant discharged from the discharge port 12 of the compressor 1 flows into the first reversing assembly 2 through the first valve port 21, and then flows out of the first reversing assembly 2 through the second valve port 22. The refrigerant flowing out of the first reversing assembly 2 flows into the indoor heat exchanger 3, exchanges heat in the indoor heat exchanger 3 and becomes a high-temperature high-pressure liquid refrigerant, then flows into the first throttling device 6 from the indoor heat exchanger 3, is throttled and depressurized by the first throttling device 6 and becomes a low-temperature low-pressure liquid refrigerant, then flows into the outdoor heat exchanger 4 from the first throttling device 6, evaporates into a low-temperature low-pressure gaseous refrigerant in the outdoor heat exchanger 4, and finally flows back to the air suction port 11 of the compressor 1 from the refrigerant flowing out of the outdoor heat exchanger 4 through the third valve port 23 and the fourth valve port 24 in sequence.

Hot water mode

Referring to fig. 4, fig. 4 is a schematic diagram of a hot water mode of an air conditioning system according to an embodiment of the present application. When the air conditioning system 100 is operating in the hot water mode, a first end of the first heat exchange flow path 51 is connected to the exhaust port 12 through the second reversing assembly 9.

The flow direction of the refrigerant is as follows: the high-temperature and high-pressure gaseous refrigerant discharged from the discharge port 12 of the compressor 1 enters the first heat exchange flow path 51, exchanges heat with water in the second heat exchange flow path 52, and the heat exchanged refrigerant flows into the first throttling device 6, is throttled and depressurized by the first throttling device 6, and becomes a low-temperature and low-pressure liquid refrigerant. Then flows from the first throttling device 6 to the outdoor heat exchanger 4, evaporates into low-temperature low-pressure gaseous refrigerant in the outdoor heat exchanger 4, and finally flows out of the outdoor heat exchanger 4 to flow back to the air suction port 11 of the compressor 1 through the third valve port 23 and the fourth valve port 24 in sequence.

Common defrost mode

Referring back to fig. 2, when the air conditioning system 100 operates in the normal defrost mode, the first valve port 21 is in communication with the third valve port 23, the second valve port 22 is in communication with the fourth valve port 24, and the first restriction device 6 is restricted.

The refrigerant flow direction is the same as the refrigerant flow direction when the air conditioning system 100 operates in the cooling mode, and will not be described here again.

Hot water defrost mode

Referring to fig. 5, fig. 5 is a schematic diagram of a hot water defrosting mode of an air conditioning system according to an embodiment of the present application. When the air conditioning system 100 operates in the hot water defrost mode, the first valve port 21 is in communication with the third valve port 23, the second valve port 22 is in communication with the fourth valve port 24, the first end of the first heat exchange flow path 51 is connected to the suction port 11 of the compressor 1 via the second reversing assembly 9, the first restriction 6 is not restricted, the second restriction 7 is restricted, and the first shutoff valve 31 is closed.

The flow direction of the refrigerant is as follows: the high-temperature and high-pressure gaseous refrigerant discharged from the discharge port 12 of the compressor 1 flows into the first reversing assembly 2 through the first valve port 21, and flows out of the first reversing assembly 2 through the third valve port 23. The refrigerant flowing out of the third valve port 23 flows into the outdoor heat exchanger 4, and changes into a high-temperature and high-pressure liquid refrigerant after heat exchange in the outdoor heat exchanger 4. Then, the refrigerant flows from the outdoor heat exchanger 4 to the second throttle device 7, is throttled and depressurized by the second throttle device 7, becomes a low-temperature low-pressure liquid refrigerant, and then flows from the second throttle device 7 into the first heat exchange flow path 51. The refrigerant turns into low-temperature low-pressure gaseous refrigerant through heat exchange between the first heat exchange flow path 51 and the second heat exchange flow path 52, and finally flows back to the air suction port 11 of the compressor 1 through the second reversing component 9.

With continued reference to fig. 5, in some embodiments, the second reversing component 9 has first through third interfaces 93. The first port 91 is connected to the exhaust port 12, the second port 92 is connected to the first end of the first heat exchanging flow path 51, and the third port 93 is connected to the intake port 11. The second interface 92 is commutated to one of the first interface 91 and the third interface 93. That is, the second interface 92 may be in communication with the first interface 91, and the second interface 92 may also be in communication with the third interface 93. When the second port 92 is connected to the first port 91, the high-temperature and high-pressure refrigerant discharged from the discharge port 12 of the compressor 1 can directly flow into the first heat exchange flow path 51. When the second port 92 is in communication with the third port 93, the refrigerant flowing out of the first heat exchange flow path 51 can flow back to the suction port 11 of the compressor 1.

With continued reference to fig. 5, in some embodiments, the second reversing element 9 is a solenoid four-way valve. At this time, the second reversing assembly 9 further includes a fourth interface 94, the fourth interface 94 is turned off, and the fourth interface 94 is reversed on with the other of the first interface 91 and the third interface 93. When the electromagnetic four-way valve is electrified, the second interface 92 is communicated with the first interface 91, and the fourth interface 94 is communicated with the third interface 93; when the electromagnetic four-way valve is powered off, the second interface 92 is communicated with the third interface 93, and the fourth interface 94 is communicated with the first interface 91. This arrangement is advantageous in improving the response speed and reliability of the air conditioning system 100.

Referring to fig. 6, fig. 6 is a schematic diagram illustrating a second air conditioning system according to an embodiment of the present application. In some embodiments, the fourth interface 94 is connected to the suction port 11 by a backflow device 95. This arrangement allows the refrigerant flowing through the fourth port 94 to flow back into the compressor 1, which is advantageous in improving the reliability of the air conditioning system 100.

Referring to fig. 7, fig. 7 is a schematic diagram illustrating a third air conditioning system according to an embodiment of the present disclosure. In some embodiments, the second reversing component 9 is an electromagnetic three-way valve. This arrangement is advantageous in improving the response speed and reliability of the air conditioning system 100.

Referring to fig. 8, fig. 8 is a schematic diagram illustrating a fourth air conditioning system according to an embodiment of the present disclosure. In some embodiments, the second reversing assembly 9 includes a first on-off valve 96 and a second on-off valve 97. The first on-off valve 96 is provided on a line between the first end of the first heat exchange flow path 51 and the exhaust port 12. The second on-off valve 97 is provided in a line between the first end of the first heat exchange flow path 51 and the intake port 11. Thus, the first on-off valve 96 can control the conduction and the closing between the first end of the first heat exchange flow path 51 and the exhaust port 12, and the second on-off valve 97 can control the conduction and the closing between the first end of the second heat exchange flow path 52 and the intake port 11. When the first on-off valve 96 is opened and the second on-off valve 97 is closed, the first end of the first heat exchange flow path 51 is in communication with the exhaust port 12, and the first end of the first heat exchange flow path 51 is not in communication with the air inlet 11; when the first on-off valve 96 is closed and the second on-off valve 97 is opened, the first end of the first heat exchange flow path 51 is not communicated with the exhaust port 12, and the first end of the first heat exchange flow path 51 is communicated with the air inlet 11. The arrangement is simple in control mode, and is beneficial to improving the control reliability of the air conditioning system 100.

In some embodiments, the first on-off valve 96 and the second on-off valve 97 are each solenoid valves. This arrangement is advantageous in improving the response speed and reliability of the air conditioning system 100.

In some embodiments, the air conditioning system 100 further includes a temperature detection device for detecting a temperature of the fluid within the second heat exchange flow path 52. Thus, defrosting of the outdoor heat exchanger 4 when the temperature of the fluid in the second heat exchanging flow path 52 is too low can be avoided, thereby contributing to improvement of the reliability of defrosting of the air conditioning system 100. The temperature detection means may be, for example, a temperature sensor.

In some embodiments, the first throttle device 6 and the second throttle device 7 are both electronic expansion valves. This arrangement is advantageous in improving the response speed and reliability of the air conditioning system 100.

With continued reference to fig. 8, in some embodiments, a second shut-off valve 32 is provided in the conduit between the first end of the indoor heat exchanger 3 and the first reversing assembly 2. Therefore, the second stop valve 32 can control the on-off state between the first end of the indoor heat exchanger 3 and the first reversing assembly 2, which is beneficial to improving the control reliability of the air conditioning system 100.

Referring to fig. 9, fig. 9 is a schematic diagram illustrating a fifth air conditioning system according to an embodiment of the present disclosure. In some embodiments, the air conditioning system 100 further includes a gas-liquid separator 8. A gas-liquid separator 8 is arranged between the compressor 1 and the first reversing assembly 2. The gas-liquid separator 8 has a liquid inlet 82 and a gas outlet 81. The liquid inlet 82 is connected to the fourth valve port 24, and the gas outlet 81 is connected to the suction port 11. By arranging the gas-liquid separator 8, the gas-liquid separation effect can be carried out on the refrigerant entering the compressor 1, so that the problem of liquid impact on the compressor 1 is avoided, and the compressor 1 is protected.

Referring to fig. 10, fig. 10 is a schematic diagram illustrating a sixth air conditioning system according to an embodiment of the present disclosure. In some embodiments, air conditioning system 100 may be a multi-split system. The air conditioning system 100 includes a plurality of indoor units. Each indoor unit is internally provided with an indoor heat exchanger 3. The indoor units are connected in parallel. Of course, it is understood that in other examples, the air conditioning system 100 may include only one indoor unit.

In the description of the present specification, a particular feature, structure, material, or characteristic may be combined in any suitable manner in one or more embodiments or examples.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. An air conditioning system, comprising:

a compressor having an air inlet and an air outlet;

the first reversing assembly is provided with first to fourth valve ports, the first valve port is connected with the exhaust port, the fourth valve port is connected with the air suction port, the first valve port is in reversing conduction with one of the second valve port and the third valve port, and the fourth valve port is in reversing conduction with the other of the second valve port and the third valve port;

the first end of the indoor heat exchanger is connected with the second valve port;

the first end of the outdoor heat exchanger is connected with the third valve port, and the second end of the outdoor heat exchanger is connected with the second end of the indoor heat exchanger through the first throttling device;

the first stop valve is arranged on a pipeline between the second end of the indoor heat exchanger and the first throttling device;

the water side heat exchanger comprises a first heat exchange flow path and a second heat exchange flow path which exchange heat mutually, wherein the first end of the first heat exchange flow path is selectively connected with one of the air suction port and the air exhaust port through a second reversing assembly, the second end of the first heat exchange flow path is connected to a pipeline between the first throttling device and the first stop valve through a second throttling device, and the second heat exchange flow path is used for being connected with a water device.

2. The air conditioning system according to claim 1, wherein the second reversing assembly has first to third interfaces, the first interface being connected to the air outlet, the second interface being connected to the first end of the first heat exchange flow path, the third interface being connected to the air inlet, the second interface being in reversing communication with one of the first interface and the third interface.

3. The air conditioning system of claim 2, wherein the second reversing assembly is an electromagnetic four-way valve.

4. An air conditioning system according to claim 3, wherein the second reversing assembly is an electromagnetic three-way valve.

5. The air conditioning system of claim 1, wherein the second reversing assembly includes a first on-off valve disposed on a line between the first end of the first heat exchange flow path and the air outlet, and a second on-off valve disposed on a line between the first end of the first heat exchange flow path and the air inlet.

6. The air conditioning system of claim 5, wherein the first on-off valve and the second on-off valve are solenoid valves.

7. The air conditioning system of claim 1, further comprising a temperature detection device for detecting a temperature of the fluid within the second heat exchange flow path.

8. The air conditioning system of claim 1, wherein the first and second restriction devices are each electronic expansion valves.

9. The air conditioning system of claim 1, wherein a second shut-off valve is disposed on the conduit between the first end of the indoor heat exchanger and the first reversing assembly.

10. The air conditioning system of claim 1, further comprising a gas-liquid separator disposed between the compressor and the first reversing assembly, the gas-liquid separator

The liquid separator is provided with a liquid inlet and a gas outlet, the liquid inlet is connected with the fourth valve port,

the gas outlet is connected with the air suction port.