Air conditioning system and air conditioner

Abstract

The present invention provides an air conditioning system and an air conditioner, the air conditioning system comprising: an electric control element heat exchanger, a first throttling component connected between the second end of the indoor heat exchanger and the second end of the outdoor heat exchanger; a second reversing component connected to the electric control element heat exchanger and the first throttling component, used to control the refrigerant to flow through the electric control element heat exchanger and then through the first throttling component; a gas-liquid separator connected between the second end of the indoor heat exchanger and the second end of the outdoor heat exchanger, the gas-liquid separator having a first interface to a third interface, at least one of the first interface and the third interface is connected to the second reversing component, and the second interface is connected to the second air inlet. In the air conditioning system provided by the present invention, the temperature of the refrigerant in the electric control element heat exchanger is appropriate, preventing the temperature of the refrigerant from dropping below the ambient dew point temperature after flowing through the first throttling component, so that the refrigerant temperature is too low, resulting in condensed water on the surface of the electric control element.

Description

Technical Field

[0001] The present invention relates to the field of refrigeration equipment, and more particularly to an air-conditioning system and an air conditioner comprising the air-conditioning system. Background Art

[0002] The existing air conditioning system using a compressor with multiple air inlets (such as the first air inlet and the second air inlet) and one exhaust port uses an air cooling module to dissipate heat for the outdoor unit electronic control components. When the ambient temperature of the outdoor unit is high and the heat dissipation efficiency of the air cooling module is low, the heat generated by the electronic control components cannot be effectively dissipated, affecting the performance of the air conditioning system and threatening the reliability of the air conditioning system. Specifically, when the ambient temperature of the outdoor unit is high, the temperature of the air flowing through the air cooling module is high, resulting in poor heat dissipation effect of the air cooling module on the outdoor unit electronic control components. The high temperature of the electronic control components affects the performance and reliability of the overall air conditioning system. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art.

[0004] To this end, an object of one aspect of the present invention is to provide an air conditioning system.

[0005] Another aspect of the present invention is to provide an air conditioner including the above air conditioning system.

[0006] To achieve the above-mentioned purpose, a technical solution of one aspect of the present invention provides an air-conditioning system, comprising: a compressor having an exhaust port, a first air inlet port, and a second air inlet port; a first reversing member having a first port to a fourth port, one of the first port and the third port being connected to the second port, the other of the first port and the third port being connected to the fourth port, the first port being connected to the exhaust port, and the third port being connected to the first air inlet port; an indoor heat exchanger and an outdoor heat exchanger, one of the second port and the fourth port being connected to a first end of the indoor heat exchanger, and the other of the second port and the fourth port being connected to a first end of the outdoor heat exchanger; an electrically controlled element heat exchanger, a first throttling component, connected to the second end and Between the second end of the outdoor heat exchanger; a second reversing member, connected to the electric control element heat exchanger and the first throttling component, used to control the refrigerant to flow through the electric control element heat exchanger and then through the first throttling component; a gas-liquid separator, connected between the second end of the indoor heat exchanger and the second end of the outdoor heat exchanger, the gas-liquid separator having a first interface to a third interface, at least one of the first interface and the third interface is connected to the second reversing member, the second interface is connected to the second air inlet, the gas-liquid separator is constructed to separate the gas-liquid mixture flowing into one of the first interface and the third interface, and discharge at least part of the separated gas from the second interface, and discharge at least part of the separated liquid from the other of the first interface and the third interface.

[0007] The air-conditioning system provided by the above technical solution of the present invention, by arranging a gas-liquid separator and a compressor with a second air inlet in the refrigeration system, the gas-liquid separator is connected to the second air inlet of the compressor, and the gas-liquid separator is used to separate the refrigerant into gas and liquid, and the separated gaseous refrigerant is directly sprayed into the compressor, thereby improving the performance of the whole machine.

[0008] The electric control element heat exchanger and the first throttling component are arranged between the second end of the indoor heat exchanger and the outdoor heat exchanger. In the cooling mode, the refrigerant discharged from the exhaust port of the compressor flows through the outdoor heat exchanger, flows through the electric control element heat exchanger and the first throttling component, and then flows to the indoor heat exchanger. In the heating mode, the refrigerant discharged from the exhaust port of the compressor flows through the indoor heat exchanger, and under the action of the second reversing member, flows through the electric control element heat exchanger and the first throttling component, and then flows to the outdoor heat exchanger.

[0009] The electric control element heat exchanger and the first throttling component are connected between the second end of the indoor heat exchanger and the second end of the outdoor heat exchanger, and through the regulating effect of the second reversing component, in the cooling mode and the heating mode, the refrigerant first flows through the electric control element heat exchanger and then flows through the first throttling component, and the electric control element is dissipated by the electric control element heat exchanger, which has a good heat dissipation effect and can effectively ensure the normal operation of the electric control element at high temperature. At the same time, the refrigerant first flows through the electric control element heat exchanger and then flows through the first throttling component, so that the temperature of the refrigerant in the electric control element heat exchanger is appropriate, and the temperature of the refrigerant is prevented from dropping below the ambient dew point temperature after the refrigerant flows through the first throttling component, so that the refrigerant temperature is too low, resulting in condensed water on the surface of the electric control element, thereby ensuring the service life and safety of the electric control element. Moreover, since the refrigerant first flows through the electric control element heat exchanger and then flows through the first throttling component, the refrigerant cold density in the electric control element heat exchanger is large, and the heat dissipation effect on the electric control element is better.

[0010] In addition, the air conditioning system provided by the above technical solution of the present invention also has the following additional technical features:

[0011] In one embodiment, the second reversing member has a first connection port to a fourth connection port, one of the first connection port and the third connection port is connected to the second connection port, the other of the first connection port and the third connection port is connected to the fourth connection port, the electric control element heat exchanger and the first throttling component are connected in series between the first connection port and the third connection port, one of the second connection port and the fourth connection port is connected to the second end of the outdoor heat exchanger, and the other of the second connection port and the fourth connection port is connected to the second end of the indoor heat exchanger.

[0012] The electric control element heat exchanger and the first throttling component are connected in series, so that the second reversing component can control the flow direction of the refrigerant flowing through the electric control element heat exchanger and the first throttling component, so that in both cooling and heating modes, the refrigerant first passes through the electric control element heat exchanger and then passes through the first throttling component, so that the temperature of the refrigerant in the electric control element heat exchanger is appropriate, while dissipating the heat of the electric control element, condensation is prevented from occurring on the surface of the electric control element. Among them, the first connecting port is connected to the first end of the electric control element heat exchanger, the second end of the electric control element heat exchanger is connected to the first end of the first throttling component, and the second end of the first throttling component is connected to the third connecting port.

[0013] In the cooling mode, the refrigerant discharged from the exhaust port of the compressor passes through the outdoor heat exchanger, passes through one of the second connection port and the fourth connection port, then passes through the first connection port, passes through the first end and the second end of the electronic control element heat exchanger in turn, flows through the first throttling component, flows into the third connection port, and then passes through the other of the second connection port and the fourth connection port and flows into the indoor heat exchanger.

[0014] In the heating mode, the refrigerant discharged from the exhaust port of the compressor passes through the indoor heat exchanger, passes through the other of the second connection port and the fourth connection port, then passes through the first connection port, passes through the first end and the second end of the electronic control element heat exchanger in turn, flows through the first throttling component, flows into the third connection port, and then passes through one of the second connection port and the fourth connection port and flows into the indoor heat exchanger.

[0015] In one embodiment, the other of the second connection port and the fourth connection port is connected to the first interface, and the third interface is connected to the second end of the indoor heat exchanger, so as to realize the connection between the other of the second connection port and the fourth connection port and the second end of the indoor heat exchanger.

[0016] One of the second connection port and the fourth connection port is connected to the second end of the outdoor heat exchanger, the other of the second connection port and the fourth connection port is connected to the first interface, and the third interface is connected to the second end of the indoor heat exchanger, thereby realizing the connection between the other of the second interface and the fourth interface and the second end of the indoor heat exchanger.

[0017] In cooling mode, the refrigerant flows into the gas-liquid separator through the first interface and flows out to the indoor heat exchanger through the third interface. In heating mode, the refrigerant flows into the gas-liquid separator through the third interface and flows out to the other of the second interface and the fourth interface through the first interface. That is, in cooling mode, the first interface is the inlet and the third interface is the outlet, and in heating mode, the first interface is the outlet and the third interface is the inlet, making it easier to select the gas-liquid separator model suitable for the air conditioning system in this application, and facilitating the selection of the gas-liquid separator.

[0018] In one embodiment, the air conditioning system includes: a second throttling component connected in series between the third interface and the second end of the indoor heat exchanger.

[0019] In the heating mode, the refrigerant flows into the third interface after passing through the indoor heat exchanger and the second throttling component. The second throttling component provides dryness so that the refrigerant in the gas-liquid separator contains gaseous refrigerant, thereby preventing the refrigerant flowing into the gas-liquid separator from being entirely liquid.

[0020] In the cooling mode, the refrigerant flows through the electronically controlled element heat exchanger, the first throttling component, the first interface, the third interface, the second throttling component and the indoor heat exchanger in sequence. Therefore, the refrigerant flows through the second throttling component after passing through the electronically controlled element heat exchanger. The setting of the second throttling component does not affect the temperature of the refrigerant flowing through the electronically controlled element heat exchanger.

[0021] In one embodiment, the second throttling component includes a capillary tube, a one-way throttling valve, an electronic expansion valve, a two-way throttling valve or a thermal expansion valve.

[0022] Capillary tubes, one-way throttle valves, two-way throttle valves or thermal expansion valves are mature and reliable technologies and can be used as throttling components to effectively ensure the reliability of air-conditioning system operation.

[0023] In addition, the electronic expansion valve uses the electrical signal generated by the adjusted parameter to control the voltage or current applied to the expansion valve, thereby achieving the purpose of adjusting the liquid supply. The throttling component can control the refrigerant flow entering the refrigeration device according to a preset program, thereby improving the intelligence of the air-conditioning system.

[0024] In one embodiment, the electrically controlled element heat exchanger is connected to the first connection port, the first throttling component is connected to the first interface, and the third interface is connected to the third connection port to achieve connection between the electrically controlled element heat exchanger, the first throttling component and the third interface.

[0025] The first end of the electric control element heat exchanger is connected to the first interface, the second end of the electric control element heat exchanger is connected to the first end of the first throttling component, the second end of the first throttling component is connected to the first interface, and the third interface is connected to the third connecting port.

[0026] Under the action of the second reversing member, the refrigerant always flows through the first end and the second end of the electronically controlled element heat exchanger and the first end and the second end of the first throttling component in sequence. Since the first interface is connected to the second end of the first throttling component, in the cooling and heating modes, the refrigerant always flows into the gas-liquid separator from the first interface and flows out from the third interface, which is beneficial to improving the efficiency of the gas-liquid separator.

[0027] In one embodiment, the number of the throttling component is one, and the throttling component is the first throttling component.

[0028] There is only one throttling component, which simplifies the structure of the system while ensuring the function of the air-conditioning system, making the system more concise, the process more concise, and the control simpler.

[0029] In one embodiment, the second switching member includes a four-way valve, and four ports of the four-way valve are respectively a first connecting port to a fourth connecting port.

[0030] The second reversing member adopts a four-way valve, which makes the structure of the second reversing member simple and the cost low. The second reversing member only uses one four-way valve to effectively control the flow direction of the refrigerant, so that the refrigerant first passes through the electronic control element heat exchanger and then passes through the first throttling component. The second reversing member only needs one four-way valve in the heating and cooling modes.

[0031] In one embodiment, the second reversing member includes a bridge-shaped valve group, which includes four valve groups connected in sequence, namely, the first valve group to the fourth valve group, each of which includes at least one valve, and a connecting port is provided between two adjacent valve groups, namely, the first connecting port, the second connecting port, the third connecting port and the fourth connecting port, wherein the first connecting port is located between the first valve group and the fourth valve group, the second connecting port is located between the first valve group and the second valve group, the third connecting port is located between the second valve group and the third valve group, and the fourth connecting port is located between the third valve group and the fourth valve group.

[0032] The bridge valve group is used to control the direction of the refrigerant, so that the refrigerant first passes through the electric control element heat exchanger and then passes through the first throttling component. The bridge valve group has a simple structure and low cost, and only one bridge valve group is needed for the second reversing member in the heating and cooling modes.

[0033] In one embodiment, the valve comprises a one-way stop valve.

[0034] The one-way stop valve has the advantages of low cost and simple process while realizing the functions of the bridge valve group.

[0035] In one embodiment, the one-way stop valves in the bridge valve group are arranged in the same direction, wherein the one-way stop valve in the first valve group is one-way conductive along the direction from the second connection port to the first connection port, the one-way stop valve in the second valve group is one-way conductive along the direction from the third connection port to the second connection port, the one-way stop valve in the third valve group is one-way conductive along the direction from the third connection port to the fourth connection port, and the one-way stop valve in the fourth valve group is one-way conductive along the direction from the fourth connection port to the first connection port.

[0036] Furthermore, for the case where all the valves in the bridge-shaped valve group are one-way valves, the number of the one-way stop valves in the bridge-shaped valve group is four, and the four one-way stop valves are arranged in the same direction. While being able to realize the function of controlling the flow direction of the refrigerant, it is convenient for the assembly of the four one-way stop valves, and avoids the four one-way stop valves not being completely in the same direction, which makes the assembly process cumbersome and prone to errors.

[0037] In one embodiment, the valve includes a solenoid valve or an electronic expansion valve.

[0038] The valve uses a solenoid valve or an electronic expansion valve, which can effectively improve the intelligence level of the air-conditioning system.

[0039] In one embodiment, the first throttling component includes a capillary tube, a one-way throttling valve, an electronic expansion valve, a two-way throttling valve or a thermal expansion valve.

[0040] Capillary tubes, one-way throttle valves, two-way throttle valves or thermal expansion valves are mature and reliable technologies and can be used as throttling components to effectively ensure the reliability of air-conditioning system operation.

[0041] In addition, the electronic expansion valve uses the electrical signal generated by the adjusted parameter to control the voltage or current applied to the expansion valve, thereby achieving the purpose of adjusting the liquid supply. The throttling component can control the refrigerant flow entering the refrigeration device according to a preset program, thereby improving the intelligence of the air-conditioning system.

[0042] In one embodiment, the electric control element heat exchanger includes a fixing plate and a heat exchange tube, and the fixing plate is provided with a groove for accommodating the heat exchange tube.

[0043] The heat exchange tube is fixed on the fixed plate, and the refrigerant flows in the heat exchange tube. The fixed plate exchanges heat with the refrigerant, and the fixed plate exchanges heat with the electronic control element to dissipate heat for the electronic control element. The electronic control element includes the outdoor unit circuit board and the components provided on the circuit board.

[0044] In order to enhance the heat exchange efficiency between the heat exchange tube and the fixed plate, the heat exchange tube is in a U-shape, a serpentine shape or an S-shape. Further, the shape and size of the groove are respectively adapted to the shape and size of the heat exchange tube.

[0045] In one embodiment, the fixing plate includes a first fixing plate and a second fixing plate arranged opposite to each other, a first groove is provided on a side of the first fixing plate facing the second fixing plate, and a second groove is provided on a side of the second fixing plate facing the first fixing plate, the first groove and the second groove are combined to form the groove, and the groove is adapted to the heat exchange tube.

[0046] The first fixing plate and the second fixing plate are assembled to form a fixing plate, and the first groove and the second groove are assembled to form a groove. When assembling the electric control element heat exchanger, the heat exchange tube can be placed in the first groove first, and then the second fixing plate is placed on the first fixing plate, so that the heat exchange tube is located in the second groove.

[0047] Furthermore, the first groove and the second groove have the same shape and size, and are the same as the shape and size of the heat exchange tube.

[0048] The first fixing plate and the second fixing plate are fixedly connected, and the two can be connected by fasteners such as screws, welded, bonded or clamped.

[0049] The technical solution of the second aspect of the present invention provides an air conditioner, comprising an air conditioning system as described in any one of the technical solutions of the first aspect.

[0050] The air conditioner provided by the technical solution of the second aspect of the present invention includes the air conditioning system described in any one of the technical solutions of the first aspect, and thus has all the beneficial effects of the air conditioning system described in any one of the technical solutions of the first aspect, which will not be repeated here.

[0051] Additional aspects and advantages of the present invention will become apparent from the following description or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0053] Figure 1 is a schematic structural diagram of the second switching member according to the first embodiment of the present invention;

[0054] Figure 2 is a structural schematic diagram of an air conditioning system according to Embodiment 1 of the present invention;

[0055] Figure 3 yes Figure 2 The schematic diagram of the refrigerant flow path of the air-conditioning system in the cooling mode is shown, wherein the arrow direction indicates the flow direction of the refrigerant;

[0056] Figure 4 yes Figure 2 The schematic diagram of the refrigerant flow path of the air-conditioning system in the heating mode is shown, wherein the arrow direction indicates the flow direction of the refrigerant;

[0057] Figure 5 is a structural schematic diagram of an air conditioning system according to a second embodiment of the present invention;

[0058] Figure 6 yes Figure 5 The schematic diagram of the refrigerant flow path of the air-conditioning system in the cooling mode is shown, wherein the arrow direction indicates the flow direction of the refrigerant;

[0059] Figure 7 yes Figure 5 The schematic diagram of the refrigerant flow path of the air-conditioning system in the heating mode is shown, wherein the arrow direction indicates the flow direction of the refrigerant;

[0060] Figure 8 is a structural schematic diagram of an air conditioning system according to a third embodiment of the present invention;

[0061] Fig. 9 yes Figure 8 The schematic diagram of the refrigerant flow path of the air-conditioning system in the cooling mode is shown, wherein the arrow direction indicates the flow direction of the refrigerant;

[0062] Fig.10 yes Figure 8The schematic diagram of the refrigerant flow path of the air-conditioning system in the heating mode is shown, wherein the arrow direction indicates the flow direction of the refrigerant;

[0063] Fig.11 is a structural schematic diagram of an air conditioning system according to a fourth embodiment of the present invention;

[0064] Fig.12 yes Fig.11 The schematic diagram of the refrigerant flow path of the air-conditioning system in the cooling mode is shown, wherein the arrow direction indicates the flow direction of the refrigerant;

[0065] Fig.13 yes Fig.11 The schematic diagram of the refrigerant flow path of the air-conditioning system in the heating mode is shown, wherein the arrow direction indicates the flow direction of the refrigerant;

[0066] Fig.14 It is a schematic diagram of the exploded structure of the electric control element heat exchanger described in Example 1 of the present invention.

[0067] in, Figures 1 to 14 The corresponding relationship between the reference numerals and the component names is as follows:

[0068] 1 compressor, 11 exhaust port, 12 first air inlet, 13 second air inlet, 2 first reversing member, 21 first port, 22 second port, 23 third port, 24 fourth port, 3 indoor heat exchanger, 4 outdoor heat exchanger, 5 gas-liquid separator, 51 first interface, 52 second interface, 53 third interface, 6 second reversing member, 61 first connection port, 62 second connection port, 63 third connection port, 64 fourth connection port, 65 first one-way stop valve, 66 second one-way stop valve, 67 third one-way stop valve, 68 fourth one-way stop valve, 7 first throttling component, 8 second throttling component, 9 electric control element heat exchanger, 91 fixed plate, 911 first fixed plate, 912 second fixed plate, 913 second groove, 92 heat exchange tube. DETAILED DESCRIPTION

[0069] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0070] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0071] Please refer to the attached Figures 1 to 14 An air conditioning system and an air conditioner according to some embodiments of the present invention are described.

[0072] like Figure 2 As shown, an air conditioning system provided according to some embodiments of the present invention includes: a compressor 1, having an exhaust port 11, a first air inlet 12, and a second air inlet 13; a first reversing member 2, having a first port 21 to a fourth port 24, one of the first port 21 and the third port 23 is connected to the second port 22, and the other of the first port 21 and the third port 23 is connected to the fourth port 24, that is, the first reversing member 2 has two conduction states, one conduction state is that the first port 21 is connected to the second port 22, and the third port 23 is connected to the fourth port 24, and the other conduction state is that the first port 21 is connected to the fourth port 24, and the third port 23 is connected to the second port 22. The first port 21 is connected to the exhaust port 11, and the third port 23 is connected to the first air inlet 12.

[0073] One of the second port 22 and the fourth port 24 is connected to the first end of the indoor heat exchanger 3, and the other of the second port 22 and the fourth port 24 is connected to the first end of the outdoor heat exchanger 4; the electronically controlled element heat exchanger 9 and the first throttling component 7 are connected between the second end of the indoor heat exchanger 3 and the second end of the outdoor heat exchanger 4.

[0074] The second reversing member 6 is connected to both the electric control element heat exchanger 9 and the first throttling component 7, and is used to control the refrigerant to flow through the electric control element heat exchanger 9 and then through the first throttling component 7. The first throttling component 7 has a throttling effect.

[0075] The gas-liquid separator 5 is connected between the second end of the indoor heat exchanger 3 and the second end of the outdoor heat exchanger 4. The gas-liquid separator 5 has a first interface 51 to a third interface 53. At least one of the first interface 51 and the third interface 53 is connected to the second reversing member 6, and the second interface 52 is connected to the second air inlet 13. The gas-liquid separator 5 is constructed to separate the gas-liquid mixture flowing into one of the first interface 51 and the third interface 53, and discharge the separated gas part from the second interface 52, and discharge the remaining part after separation from the other of the first interface 51 and the third interface 53.

[0076] The air-conditioning system provided by the above-mentioned embodiment of the present invention is configured by arranging a gas-liquid separator 5 and a compressor 1 having a second air inlet 13 in the refrigeration system, the gas-liquid separator 5 is connected to the second air inlet 13 of the compressor 1, and the gas-liquid separator 5 is used to separate the refrigerant into gas and liquid, and the separated gaseous refrigerant is directly sprayed into the compressor 1 through the second air inlet 13, thereby improving the performance of the whole machine.

[0077] The electric control element heat exchanger 9 and the first throttling component 7 are arranged between the second ends of the indoor heat exchanger 3 and the outdoor heat exchanger 4. Figure 3As shown, in the cooling mode, the refrigerant discharged from the exhaust port 11 of the compressor 1 flows through the outdoor heat exchanger 4, and under the action of the second reversing member 6, flows through the electric control element heat exchanger 9 and the first throttling component 7, and then flows to the indoor heat exchanger 3. Figure 4 As shown, in the heating mode, the refrigerant discharged from the exhaust port 11 of the compressor 1 flows through the indoor heat exchanger 3, and under the action of the second reversing member 6, flows through the electronically controlled element heat exchanger 9 and the first throttling component 7, and then flows to the outdoor heat exchanger 4.

[0078] The electric control element heat exchanger 9 and the first throttling component 7 are connected between the second end of the indoor heat exchanger 3 and the second end of the outdoor heat exchanger 4, and through the regulating effect of the second reversing component 6, in the cooling mode and the heating mode, the refrigerant first flows through the electric control element heat exchanger 9 and then flows through the first throttling component 7, and the electric control element is dissipated by the electric control element heat exchanger 9, which has a good heat dissipation effect and can effectively ensure the normal operation of the electric control element at high temperature. At the same time, the refrigerant first flows through the electric control element heat exchanger 9 and then flows through the first throttling component 7, so that the temperature of the refrigerant in the electric control element heat exchanger 9 is appropriate, and the temperature of the refrigerant is prevented from dropping below the ambient dew point temperature after the refrigerant flows through the first throttling component 7, so that the refrigerant temperature is too low, resulting in condensed water on the surface of the electric control element, thereby ensuring the service life and safety of the electric control element. Moreover, since the refrigerant first flows through the electric control element heat exchanger 9 and then flows through the first throttling component 7, the refrigerant cold density in the electric control element heat exchanger 9 is large, and the heat dissipation effect on the electric control element is better.

[0079] It should be noted that the connecting pipes of the second port 22 and the fourth port 24 can be interchanged, that is, the second port 22 is connected to the first end of the indoor heat exchanger 3, and the fourth port 24 is connected to the first end of the outdoor heat exchanger 4, or the second port 22 is connected to the first end of the outdoor heat exchanger 4, and the fourth port 24 is connected to the first end of the indoor heat exchanger 3. After the interchange, the same technical effect can be achieved with the corresponding control.

[0080] Embodiment 1:

[0081] like Figure 2As shown, the second reversing member 6 has a first connection port 61 to a fourth connection port 64, one of the first connection port 61 and the third connection port 63 is connected to the second connection port 62, and the other of the first connection port 61 and the third connection port 63 is connected to the fourth connection port 64, that is, the second reversing member 6 has two conduction states, one conduction state is that the first connection port 61 is connected to the second connection port 62, and the third connection port 63 is connected to the fourth connection port 64, and the other conduction state is that the first connection port 61 is connected to the fourth connection port 64, and the third connection port 63 is connected to the second connection port 62. The electric control element heat exchanger 9 and the first throttling component 7 are connected in series between the first connection port 61 and the third connection port 63, one of the second connection port 62 and the fourth connection port 64 is connected to the second end of the outdoor heat exchanger 4, and the other of the second connection port 62 and the fourth connection port 64 is connected to the second end of the indoor heat exchanger 3. As shown Figure 2 As shown, the second connection port 62 is connected to the outdoor heat exchanger 4 , and the fourth connection port 64 is connected to the indoor heat exchanger 3 .

[0082] It should be noted that the connecting pipes of the second connecting port 62 and the fourth connecting port 64 can be interchanged, that is, the second connecting port 62 is connected to the first end of the indoor heat exchanger 3, and the fourth connecting port 64 is connected to the first end of the outdoor heat exchanger 4, or the second connecting port 62 is connected to the first end of the outdoor heat exchanger 4, and the fourth connecting port 64 is connected to the first end of the indoor heat exchanger 3. After the interchange, the same technical effect can be achieved with the corresponding control.

[0083] The second switching member 6 includes a bridge-shaped valve group, which includes four valve groups connected in sequence, namely the first to fourth valve groups, each valve group includes at least one valve, and a connection port is provided between two adjacent valve groups, namely the first connection port 61, the second connection port 62, the third connection port 63 and the fourth connection port 64. One of the first connection port 61 and the third connection port 63 is connected to the second connection port 62, and the other of the first connection port 61 and the third connection port 63 is connected to the fourth connection port 64, that is, the bridge-shaped valve group has two conducting states, one conducting state is that the first connection port 61 is connected to the second connection port 62, and the third connection port 63 is connected to the fourth connection port 64, and the other conducting state is that the first connection port 61 is connected to the fourth connection port 64, and the third connection port 63 is connected to the second connection port 62.

[0084] The bridge valve group is used to control the direction of the refrigerant, so that the refrigerant first passes through the electric control element heat exchanger 9 and then passes through the first throttling component 7. The bridge valve group has a simple structure and low cost, and the second reversing member 6 only needs one bridge valve group in the heating and cooling modes.

[0085] The valve can be a one-way stop valve. For example, each valve group includes a one-way stop valve, and four one-way stop valves are arranged in the same direction. While being able to realize the control function of the refrigerant flow direction, it is convenient for the assembly of the four one-way stop valves, avoiding the four one-way stop valves not being completely in the same direction, resulting in a cumbersome assembly process and prone to errors.

[0086] like Figure 1 As shown, the four one-way stop valves are respectively a first one-way stop valve 65, a second one-way stop valve 66, a third one-way stop valve 67 and a fourth one-way stop valve 68. The first valve group includes the first one-way stop valve 65, the second valve group includes the second one-way stop valve 66, the third valve group includes the third one-way stop valve 67, and the fourth valve group includes the fourth one-way stop valve 68. A one-way stop valve is a valve that allows flow in one direction but not in the other direction. For the first one-way stop valve 65, when the pressure on the C side is greater than the pressure on the D side, the first one-way stop valve 65 flows, otherwise it does not flow, that is, the first one-way stop valve 65 is unidirectionally connected in the direction from the second connecting port 62 to the first connecting port 61; for the second one-way stop valve 66, when the pressure on the A side is greater than the pressure on the B side, the second one-way stop valve 66 flows, otherwise it does not flow, that is, the second one-way stop valve 66 is unidirectionally connected in the direction from the third connecting port 63 to the second connecting port 62; for the third one-way stop valve 67, when the pressure on the E side is greater than the pressure on the F side, the third one-way stop valve 67 flows, otherwise it does not flow, that is, the third one-way stop valve 67 is unidirectionally connected in the direction from the third connecting port 63 to the fourth connecting port 64; for the fourth one-way stop valve 68, when the pressure on the G side is greater than the pressure on the H side, the fourth one-way stop valve 68 flows, otherwise it does not flow, that is, the fourth one-way stop valve 68 is unidirectionally connected in the direction from the fourth connecting port 64 to the first connecting port 61.

[0087] The valve may also be a solenoid valve or an electronic expansion valve.

[0088] The first switching element may be a four-way valve or a bridge valve group.

[0089] The electric control element heat exchanger 9 and the first throttling component 7 are connected in series, so that the second reversing component 6 can control the flow direction of the refrigerant flowing through the electric control element heat exchanger 9 and the first throttling component 7, so that in both cooling and heating modes, the refrigerant first passes through the electric control element heat exchanger 9 and then passes through the first throttling component 7, so that the refrigerant temperature in the electric control element heat exchanger 9 is appropriate, while dissipating the heat of the electric control element, condensation is prevented on the surface of the electric control element. Figure 2 As shown, the first connection port 61 is connected to the first end of the electric control element heat exchanger 9 , the second end of the electric control element heat exchanger 9 is connected to the first end of the first throttling component 7 , and the second end of the first throttling component 7 is connected to the third connection port 63 .

[0090] In one embodiment, the first throttling component 7 includes a capillary tube, a one-way throttling valve, an electronic expansion valve, a two-way throttling valve or a thermal expansion valve.

[0091] In cooling mode, if Figure 3 As shown, the refrigerant discharged from the exhaust port 11 of the compressor 1 passes through the outdoor heat exchanger 4 and then passes through one of the second connection port 62 and the fourth connection port 64, as shown in FIG. Figure 2 In the process, the heat energy flows through the second connection port 62, then through the first connection port 61, and in turn through the first end and the second end of the electric control element heat exchanger 9, flows through the first throttling component 7, flows into the third connection port 63, and then flows into the indoor heat exchanger 3 through the other of the second connection port 62 and the fourth connection port 64.

[0092] In heating mode, if Figure 4 As shown, the refrigerant discharged from the exhaust port 11 of the compressor 1 passes through the indoor heat exchanger 3, passes through the other of the second connection port 62 and the fourth connection port 64, and then passes through the first connection port 61, passes through the first end and the second end of the electric control element heat exchanger 9 in turn, flows through the first throttling component 7, flows into the third connection port 63, and then passes through one of the second connection port 62 and the fourth connection port 64 and flows into the indoor heat exchanger 3.

[0093] In one embodiment, the other of the second connection port 62 and the fourth connection port 64 is connected to the first interface 51, and the third interface 53 is connected to the second end of the indoor heat exchanger 3, so that the other of the second connection port 62 and the fourth connection port 64 is connected to the second end of the indoor heat exchanger 3.

[0094] One of the second connection port 62 and the fourth connection port 64 is connected to the second end of the outdoor heat exchanger 4, the other of the second connection port 62 and the fourth connection port 64 is connected to the first interface 51, and the third interface 53 is connected to the second end of the indoor heat exchanger 3, thereby realizing the connection between the other of the second interface 52 and the fourth interface and the second end of the indoor heat exchanger 3. Figure 2 In the embodiment, the second connection port 62 is connected to the second end of the outdoor heat exchanger 4 , the fourth connection port 64 is connected to the first interface 51 , and the third interface 53 is connected to the second end of the indoor heat exchanger 3 .

[0095] In cooling mode, if Figure 3 As shown, the refrigerant flows into the gas-liquid separator 5 through the first interface 51, and flows out to the indoor heat exchanger 3 through the third interface 53. In the heating mode, Figure 4As shown, the refrigerant flows into the gas-liquid separator 5 through the third interface 53, and flows out to the other of the second interface 52 and the fourth interface through the first interface 51. That is, in the cooling mode, the first interface 51 is the inlet and the third interface 53 is the outlet, and in the heating mode, the first interface 51 is the outlet and the third interface 53 is the inlet, that is, the refrigerant inlet corresponding to the gas-liquid separator (liquid storage tank) in the cooling mode is the refrigerant outlet in the heating mode, which makes it easier to select the gas-liquid separator (liquid storage tank) model applicable to the air-conditioning system.

[0096] The gas-liquid separator 5 may be a liquid storage tank.

[0097] In one embodiment, Figure 2 As shown, the air conditioning system includes: a second throttling component 8, which is connected in series between the third interface 53 and the second end of the indoor heat exchanger 3, and the second throttling component 8 has a throttling effect.

[0098] In the heating mode, the refrigerant flows into the third interface 53 after passing through the indoor heat exchanger 3 and the second throttling component 8. The second throttling component 8 provides dryness so that the refrigerant in the gas-liquid separator 5 contains gaseous refrigerant, thereby preventing the refrigerant flowing into the gas-liquid separator 5 from being entirely liquid and causing damage to the gas-liquid separator 5.

[0099] In the cooling mode, the refrigerant flows through the electronically controlled element heat exchanger 9, the first throttling component 7, the first interface 51, the third interface 53, the second throttling component 8 and the indoor heat exchanger 3 in sequence. Therefore, the refrigerant flows through the second throttling component 8 after passing through the electronically controlled element heat exchanger 9. The setting of the second throttling component 8 does not affect the temperature of the refrigerant flowing through the electronically controlled element heat exchanger 9.

[0100] In one embodiment, the second throttling component 8 includes a capillary tube, a one-way throttling valve, an electronic expansion valve, a two-way throttling valve or a thermal expansion valve.

[0101] In the accompanying drawings, the second port 22 is connected to the first end of the outdoor heat exchanger 4, the fourth port 24 is connected to the first end of the indoor heat exchanger 3, the second connection port 62 is connected to the second end of the outdoor heat exchanger 4, and the fourth connection port 64 is connected to the first interface 51. The flow path of the refrigerant in the cooling and heating modes of the present application is described in detail below with reference to the accompanying drawings.

[0102] In cooling mode, Figure 3As shown, the flow path of the refrigerant is: the refrigerant flowing out of the exhaust port 11 of the compressor 1 flows to the first port 21, flows to the first end of the outdoor heat exchanger 4 through the second port 22, flows out to the second connection port 62 through the second end of the outdoor heat exchanger 4, flows to the first connection port 61 through the first one-way stop valve 65, flows through the electric control element heat exchanger 9 and the first throttling component 7 to the third connection port 63, flows to the fourth connection port 64 through the third one-way stop valve 67, flows to the first interface 51, the gaseous refrigerant flows to the second air inlet 13 through the second interface 52 and flows back to the compressor 1, the remaining refrigerant flows out from the third interface 53, flows to the indoor heat exchanger 3 through the second throttling component 8, and flows back to the first air inlet 12 through the fourth port 24 and the third port 23.

[0103] In heating mode, Figure 4 As shown, the flow path of the refrigerant is: the refrigerant flowing out of the exhaust port 11 of the compressor 1 flows to the first port 21, flows to the first end of the indoor heat exchanger 3 through the fourth port 24, flows out through the second end of the indoor heat exchanger 3 to the second throttling component 8, flows to the third interface 53, the gaseous refrigerant flows to the second air inlet 13 through the second interface 52 and flows back to the compressor 1, the remaining refrigerant flows out from the first interface 51, flows to the fourth connecting port 64, flows to the first connecting port 61 through the fourth one-way stop valve 68, flows through the electric control element heat exchanger 9 and the first throttling component 7 to the third connecting port 63, flows to the second connecting port 62 through the second one-way stop valve 66, flows to the outdoor heat exchanger 4, and flows back to the first air inlet 12 through the second port 22 and the third port 23.

[0104] In one embodiment, Fig.14 As shown, the electric control element heat exchanger 9 includes a fixing plate 91 and a heat exchange tube 92 . The fixing plate 91 is provided with a groove for accommodating the heat exchange tube 92 .

[0105] The heat exchange tube 92 is fixed on the fixed plate 91, and the refrigerant flows in the heat exchange tube 92. The fixed plate 91 exchanges heat with the refrigerant, and the fixed plate 91 exchanges heat with the electric control element to dissipate heat for the electric control element. The electric control element includes the outdoor unit circuit board and the components provided on the circuit board.

[0106] To enhance the heat exchange efficiency between the heat exchange tube 92 and the fixing plate 91 , the heat exchange tube 92 is in a U-shape, a serpentine shape or an S-shape. Further, the shape and size of the groove are respectively adapted to the shape and size of the heat exchange tube 92 .

[0107] In one embodiment, the fixing plate 91 includes a first fixing plate 911 and a second fixing plate 912 that are arranged opposite to each other. A first groove is provided on the side of the first fixing plate 911 facing the second fixing plate 912, and a second groove 913 is provided on the side of the second fixing plate 912 facing the first fixing plate 911. The first groove and the second groove 913 are combined to form a groove, and the groove is adapted to the heat exchange tube 92.

[0108] The first fixing plate 911 and the second fixing plate 912 are assembled to form the fixing plate 91, and the first groove and the second groove 913 are assembled to form a groove. When the electric control element heat exchanger 9 is assembled, the heat exchange tube 92 can be placed in the first groove first, and then the second fixing plate 912 can be placed on the first fixing plate 911, and the heat exchange tube 92 can be located in the second groove 913.

[0109] Furthermore, the first groove and the second groove 913 have the same shape and size, and are the same as the shape and size of the heat exchange tube 92 .

[0110] The first fixing plate 911 and the second fixing plate 912 are fixedly connected, and the two can be connected by fasteners such as screws, welded, bonded or clamped.

[0111] Embodiment 2:

[0112] The difference from the first embodiment is that Figure 5 As shown, the electric control element heat exchanger 9 is connected to the first connection port 61 , the first throttling component 7 is connected to the first interface 51 , and the third interface 53 is connected to the third connection port 63 , so as to realize the connection between the electric control element heat exchanger 9 , the first throttling component 7 and the third interface 53 .

[0113] The first end of the electric control element heat exchanger 9 is connected to the first interface 51 , the second end of the electric control element heat exchanger 9 is connected to the first end of the first throttling component 7 , the second end of the first throttling component 7 is connected to the first interface 51 , and the third interface 53 is connected to the third connecting port 63 .

[0114] Under the action of the second reversing member 6, the refrigerant always flows through the first end and the second end of the electronically controlled element heat exchanger 9 and the first end and the second end of the first throttling component 7 in sequence. Since the first interface 51 is connected to the second end of the first throttling component 7, in the cooling and heating modes, the refrigerant always flows into the gas-liquid separator 5 from the first interface 51 and flows out from the third interface 53. That is, the refrigerant inlet and outlet of the gas-liquid separator (liquid storage tank) remain constant regardless of whether it is in the cooling or heating mode, which is beneficial to improving the efficiency of the gas-liquid separator (liquid storage tank).

[0115] In one embodiment, the number of the throttling component is one, and the throttling component is the first throttling component 7 .

[0116] There is only one throttling component, which simplifies the structure of the system while ensuring the function of the air-conditioning system, making the system more concise, the process more concise, and the control simpler.

[0117] In the accompanying drawings, the second port 22 is connected to the first end of the outdoor heat exchanger 4, the fourth port 24 is connected to the first end of the indoor heat exchanger 3, the second connection port 62 is connected to the second end of the outdoor heat exchanger 4, and the fourth connection port 64 is connected to the second end of the indoor heat exchanger 3. The flow path of the refrigerant in the cooling and heating modes of the present application is described in detail below with reference to the accompanying drawings.

[0118] In cooling mode, Figure 6 As shown, the flow path of the refrigerant is: the refrigerant flowing out of the exhaust port 11 of the compressor 1 flows to the first port 21, flows to the first end of the outdoor heat exchanger 4 through the second port 22, flows out to the second connecting port 62 through the second end of the outdoor heat exchanger 4, flows to the first connecting port 61 through the first one-way stop valve 65, flows through the electric control element heat exchanger 9 and the first throttling component 7 to the first interface 51, the gaseous refrigerant flows to the second air inlet 13 through the second interface 52 and flows back to the compressor 1, the remaining refrigerant flows out from the third interface 53, flows to the third connecting port 63, flows to the fourth connecting port 64 through the third one-way stop valve 67, flows to the indoor heat exchanger 3, and flows back to the first air inlet 12 through the fourth port 24 and the third port 23.

[0119] In heating mode, Figure 7 As shown, the flow path of the refrigerant is: the refrigerant flowing out of the exhaust port 11 of the compressor 1 flows to the first port 21, flows to the first end of the indoor heat exchanger 3 through the fourth port 24, flows out through the second end of the indoor heat exchanger 3 to the fourth connecting port 64, flows to the first connecting port 61 through the fourth one-way stop valve 68, flows through the electronically controlled element heat exchanger 9 and the first throttling component 7 to the first interface 51, the gaseous refrigerant flows to the second air inlet 13 through the second interface 52 and flows back to the compressor 1, and the remaining refrigerant flows out from the third interface 53, flows to the outdoor heat exchanger 4 through the third connecting port 63 and the second connecting port 62, and flows back to the first air inlet 12 through the second port 22 and the third port 23.

[0120] Embodiment three:

[0121] The difference from the first embodiment is that Figure 8 As shown, the second switching member 6 includes a four-way valve, and the four ports of the four-way valve are respectively a first connecting port 61 to a fourth connecting port 64 .

[0122] The second reversing member 6 adopts a four-way valve, so that the structure of the second reversing member 6 is simple and the cost is low. The second reversing member 6 can effectively control the flow direction of the refrigerant by only using one four-way valve, so that the refrigerant first passes through the electronically controlled element heat exchanger 9 and then passes through the first throttling component 7. The second reversing member 6 only needs one four-way valve in the heating and cooling modes.

[0123] In the accompanying drawings, the second port 22 is connected to the first end of the outdoor heat exchanger 4, the fourth port 24 is connected to the first end of the indoor heat exchanger 3, the second connection port 62 is connected to the second end of the outdoor heat exchanger 4, and the fourth connection port 64 is connected to the first interface 51. The flow path of the refrigerant in the cooling and heating modes of the present application is described in detail below with reference to the accompanying drawings.

[0124] In cooling mode, Fig. 9 As shown, the flow path of the refrigerant is: the refrigerant flowing out of the exhaust port 11 of the compressor 1 flows to the first port 21, flows to the first end of the outdoor heat exchanger 4 through the second port 22, flows out to the second connection port 62 through the second end of the outdoor heat exchanger 4, flows to the first connection port 61, flows through the electric control element heat exchanger 9 and the first throttling component 7 to the third connection port 63, flows to the fourth connection port 64, flows to the first interface 51, the gaseous refrigerant flows to the second air inlet 13 through the second interface 52 and flows back to the compressor 1, the remaining refrigerant flows out from the third interface 53, flows to the indoor heat exchanger 3 through the second throttling component 8, and flows back to the first air inlet 12 through the fourth port 24 and the third port 23.

[0125] In heating mode, Fig.10 As shown, the flow path of the refrigerant is: the refrigerant flowing out of the exhaust port 11 of the compressor 1 flows to the first port 21, flows to the first end of the indoor heat exchanger 3 through the fourth port 24, flows out through the second end of the indoor heat exchanger 3, flows to the third interface 53, the gaseous refrigerant flows to the second air inlet 13 through the second interface 52 and flows back to the compressor 1, and the remaining refrigerant flows out from the first interface 51, flows to the fourth connection port 64, flows to the first connection port 61, flows through the electric control element heat exchanger 9 and the first throttling component 7 to the third connection port 63, flows to the second connection port 62, flows to the outdoor heat exchanger 4, and flows back to the first air inlet 12 through the second port 22 and the third port 23.

[0126] Embodiment 4:

[0127] The difference from the second embodiment is that Fig.11 As shown, the second switching member 6 includes a four-way valve, and the four ports of the four-way valve are respectively a first connecting port 61 to a fourth connecting port 64 .

[0128] The second reversing member 6 adopts a four-way valve, so that the structure of the second reversing member 6 is simple and the cost is low. The second reversing member 6 only uses one four-way valve to effectively control the flow direction of the refrigerant between the electronically controlled element heat exchanger 9 and the first throttling component 7, so that the refrigerant first passes through the electronically controlled element heat exchanger 9 and then passes through the first throttling component 7. The second reversing member 6 only needs one four-way valve in the heating and cooling modes.

[0129] In the accompanying drawings, the second port 22 is connected to the first end of the outdoor heat exchanger 4, the fourth port 24 is connected to the first end of the indoor heat exchanger 3, the second connection port 62 is connected to the second end of the outdoor heat exchanger 4, and the fourth connection port 64 is connected to the second end of the indoor heat exchanger 3. The flow path of the refrigerant in the cooling and heating modes of the present application is described in detail below with reference to the accompanying drawings.

[0130] In cooling mode, Fig.12 As shown, the flow path of the refrigerant is: the refrigerant flowing out of the exhaust port 11 of the compressor 1 flows to the first port 21, flows to the first end of the outdoor heat exchanger 4 through the second port 22, flows out through the second end of the outdoor heat exchanger 4 to the second connecting port 62, flows to the first connecting port 61, flows through the electronically controlled element heat exchanger 9 and the first throttling component 7 to the first interface 51, the gaseous refrigerant flows to the second air inlet 13 through the second interface 52 and flows back to the compressor 1, the remaining refrigerant flows out from the third interface 53, flows to the third connecting port 63, flows to the fourth connecting port 64, flows to the indoor heat exchanger 3, and flows back to the first air inlet 12 through the fourth port 24 and the third port 23.

[0131] In heating mode, Fig.13 As shown, the flow path of the refrigerant is: the refrigerant flowing out of the exhaust port 11 of the compressor 1 flows to the first port 21, flows to the first end of the indoor heat exchanger 3 through the fourth port 24, flows out through the second end of the indoor heat exchanger 3 to the fourth connecting port 64 and flows to the first connecting port 61, flows through the electronically controlled element heat exchanger 9 and the first throttling component 7 and flows to the first interface 51, the gaseous refrigerant flows to the second air inlet 13 through the second interface 52 and flows back to the compressor 1, and the remaining refrigerant flows out from the third interface 53, flows to the outdoor heat exchanger 4 through the third connecting port 63 and the second connecting port 62, and flows back to the first air inlet 12 through the second port 22 and the third port 23.

[0132] An embodiment of a second aspect of the present invention provides an air conditioner, comprising an air conditioning system as described in any one of the embodiments of the first aspect.

[0133] The air conditioner provided in the embodiment of the second aspect of the present invention includes the air conditioning system of any one of the embodiments of the first aspect, and thus has all the beneficial effects of the air conditioning system of any one of the embodiments of the first aspect, which will not be described in detail here.

[0134] The compressor 1 in the present application has a plurality of air inlets, for example, two air inlets, namely a first air inlet 12 and a second air inlet 13 . In this case, the compressor 1 may be a re-enthalpy injection compressor 1 or an independent compressor 1 .

[0135] In summary, in the air conditioning system provided by the embodiment of the present invention, whether the refrigerant circulates along M→7→N during cooling or along N→7→M during heating, the refrigerant flows through the electric control element heat exchanger 9 before throttling through the first throttling component 7, and the refrigerant of suitable temperature can be obtained for the electric control element heat exchanger 9 during cooling and heating to cool the electric control element and ensure the reliability of the electric control element. Moreover, the temperature of the refrigerant in the electric control element heat exchanger 9 is suitable, and the temperature of the electric control element will not be lower than the ambient temperature, and there is no risk of condensation, so the reliability is guaranteed.

[0136] In the description of the present invention, unless otherwise clearly specified and limited, the term "plurality" refers to two or more than two; unless otherwise specified or explained, the terms "connection", "fixed" and the like should be understood in a broad sense, for example, "connection" can be a fixed connection, a detachable connection, an integral connection, or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0137] In the description of this specification, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "front", "back", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, cannot be understood as a limitation on the present invention.

[0138] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0139] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An air conditioning system, characterized in that: include: A compressor having an exhaust port, a first air inlet port, and a second air inlet port; A first reversing member having a first port to a fourth port, wherein one of the first port and the third port is communicated with the second port, the other of the first port and the third port is communicated with the fourth port, the first port is connected to the exhaust port, and the third port is connected to the first intake port; an indoor heat exchanger and an outdoor heat exchanger, wherein one of the second port and the fourth port is connected to the first end of the indoor heat exchanger, and the other of the second port and the fourth port is connected to the first end of the outdoor heat exchanger; An electric control element heat exchanger and a first throttling component are connected between the second end of the indoor heat exchanger and the second end of the outdoor heat exchanger; A second reversing member, connected to the electric control element heat exchanger and the first throttling member, for controlling the refrigerant to flow through the electric control element heat exchanger and then through the first throttling member; a gas-liquid separator connected between the second end of the indoor heat exchanger and the second end of the outdoor heat exchanger, the gas-liquid separator having a first interface to a third interface, at least one of the first interface and the third interface being connected to the second reversing member, the second interface being connected to the second air inlet, the gas-liquid separator being configured to perform gas-liquid separation on a gas-liquid mixture flowing in from one of the first interface and the third interface, and to discharge at least part of the separated gas from the second interface, and to discharge at least part of the separated liquid from the other of the first interface and the third interface; The second reversing member has a first connection port to a fourth connection port, one of the first connection port and the third connection port is communicated with the second connection port, the other of the first connection port and the third connection port is communicated with the fourth connection port, the electric control element heat exchanger and the first throttling component are connected in series between the first connection port and the third connection port, one of the second connection port and the fourth connection port is connected to the second end of the outdoor heat exchanger, and the other of the second connection port and the fourth connection port is connected to the second end of the indoor heat exchanger; The second reversing member comprises a bridge-shaped valve group, the bridge-shaped valve group comprises four valve groups connected in sequence, namely, the first valve group to the fourth valve group, each of the valve groups comprises at least one valve, and a connecting port is provided between two adjacent valve groups, namely, the first connecting port, the second connecting port, the third connecting port and the fourth connecting port, wherein the first connecting port is located between the first valve group and the fourth valve group, the second connecting port is located between the first valve group and the second valve group, the third connecting port is located between the second valve group and the third valve group, and the fourth connecting port is located between the third valve group and the fourth valve group; The other of the second connection port and the fourth connection port is connected to the first interface, and the third interface is connected to the second end of the indoor heat exchanger, so that the other of the second connection port and the fourth connection port is connected to the second end of the indoor heat exchanger; A second throttling component connected in series between the third interface and the second end of the indoor heat exchanger; In the heating mode, the refrigerant flows into the third interface after passing through the indoor heat exchanger and the second throttling component; In the cooling mode, the refrigerant flows through the electronically controlled element heat exchanger, the first throttling component, the first interface, the third interface, the second throttling component and the indoor heat exchanger in sequence.

2. The air conditioning system according to claim 1, characterized in that: The second throttling component includes a capillary tube, a one-way throttling valve, an electronic expansion valve, a two-way throttling valve or a thermal expansion valve.

3. The air conditioning system according to claim 1, characterized in that: The electrically controlled element heat exchanger is connected to the first connection port, the first throttling component is connected to the first interface, and the third interface is connected to the third connection port to achieve connection between the electrically controlled element heat exchanger, the first throttling component and the third interface.

4. The air conditioning system according to claim 3, characterized in that: The number of the throttling component is one, and the throttling component is the first throttling component.

5. The air conditioning system according to claim 1, characterized in that: The second switching element includes a four-way valve.

6. The air conditioning system according to claim 1, characterized in that: The valve comprises a one-way stop valve.

7. The air conditioning system according to claim 6, characterized in that: All the one-way stop valves in the bridge valve group are arranged in the same direction, wherein the one-way stop valve in the first valve group is one-way conductive along the direction from the second connection port to the first connection port, the one-way stop valve in the second valve group is one-way conductive along the direction from the third connection port to the second connection port, the one-way stop valve in the third valve group is one-way conductive along the direction from the third connection port to the fourth connection port, and the one-way stop valve in the fourth valve group is one-way conductive along the direction from the fourth connection port to the first connection port.

8. The air conditioning system according to claim 1, characterized in that: The valve comprises a solenoid valve or an electronic expansion valve.

9. The air conditioning system according to claim 1, characterized in that: The first throttling component includes a capillary tube, a one-way throttling valve, an electronic expansion valve, a two-way throttling valve or a thermal expansion valve.

10. The air conditioning system according to claim 1, characterized in that: The electric control element heat exchanger comprises a fixing plate and a heat exchange tube, wherein the fixing plate is provided with a groove for accommodating the heat exchange tube.

11. The air conditioning system according to claim 10, characterized in that: The fixing plate includes a first fixing plate and a second fixing plate arranged opposite to each other, a first groove is provided on a side of the first fixing plate facing the second fixing plate, and a second groove is provided on a side of the second fixing plate facing the first fixing plate, the first groove and the second groove are combined to form the groove, and the groove is adapted to the heat exchange tube.

12. An air conditioner, characterized in that: An air conditioning system comprising the air conditioning system as claimed in any one of claims 1 to 11.

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