Refrigeration system and air conditioner

Abstract

The utility model discloses a refrigerating system and air conditioner, refrigerating system includes: one end of outdoor heat exchanger and one end of indoor heat exchanger intercommunication and is equipped with throttling device between one end of outdoor heat exchanger and one end of indoor heat exchanger, one end of intercommunication branch is connected between indoor heat exchanger and throttling device, the other end of intercommunication branch is connected between throttling device and outdoor heat exchanger, and heat exchange subassembly is connected in series on intercommunication branch, first valve subassembly and second valve subassembly all are connected in series on intercommunication branch, and first valve subassembly is located the one side of heat exchange subassembly close to indoor heat exchanger and is used for throttling the refrigerant from heat exchange subassembly to indoor heat exchanger, and second valve subassembly is located the one side of heat exchange subassembly close to outdoor heat exchanger and is used for throttling the refrigerant from heat exchange subassembly to outdoor heat exchanger. According to the refrigerating system of the utility model, can adjust throttling device in refrigerating and heating of refrigerating system simultaneously in preventing electric control element dew condensation, and production cost is low.

Description

Technical Field

[0001] This utility model relates to the field of air handling equipment technology, and more specifically, to a refrigeration system and an air conditioner. Background Technology

[0002] To prevent condensation on the electronic control components, throttling is prohibited before the refrigerant in the refrigeration system exchanges heat with the electronic control components. Related technologies employ dual one-way throttling valves or a throttling device plus a one-way throttling valve; however, the throttling device can only be used in either the cooling or heating mode of the refrigeration system. Alternatively, dual throttling devices can be used to achieve separate control of the cooling and heating flow paths, but this is more expensive. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of this invention is to provide a refrigeration system that, while preventing condensation on electronically controlled components, allows for adjustment of the throttling device during both cooling and heating operations, and also achieves low production costs.

[0004] Another objective of this invention is to provide an air conditioner having the aforementioned refrigeration system.

[0005] A refrigeration system according to an embodiment of the present invention includes: a compressor having an exhaust port and an intake port; an outdoor heat exchanger and an indoor heat exchanger, one end of the outdoor heat exchanger being connected to one end of the indoor heat exchanger and a throttling device being provided between the one end of the outdoor heat exchanger and the one end of the indoor heat exchanger; and a reversing assembly having a first valve port, a second valve port, a third valve port, and a fourth valve port, wherein the first valve port is connected to the exhaust port, the second valve port is connected to the other end of the outdoor heat exchanger, the third valve port is connected to the intake port, the fourth valve port is connected to the other end of the indoor heat exchanger, the first valve port is connected to one of the second and fourth valve ports, and the third valve port is connected to both the second and fourth valve ports. Another connection is provided; a heat exchange assembly for exchanging heat with the electronic control element; a connecting branch, one end of which is connected between the indoor heat exchanger and the throttling device, and the other end of which is connected between the throttling device and the outdoor heat exchanger, the heat exchange assembly being connected in series on the connecting branch; a first valve assembly and a second valve assembly, both connected in series on the connecting branch, the first valve assembly being located on the side of the heat exchange assembly closer to the indoor heat exchanger and used for throttling the refrigerant flowing from the heat exchange assembly to the indoor heat exchanger, and the second valve assembly being located on the side of the heat exchange assembly closer to the outdoor heat exchanger and used for throttling the refrigerant flowing from the heat exchange assembly to the outdoor heat exchanger.

[0006] According to the refrigeration system of this utility model embodiment, one end of a connecting branch is connected between the indoor heat exchanger and the throttling device, and the other end of the connecting branch is connected between the throttling device and the outdoor heat exchanger. A heat exchange component is connected in series on the connecting branch. A first valve component and a second valve component are both connected in series on the connecting branch. The first valve component is located on the side of the heat exchange component closer to the indoor heat exchanger and is used to throttle the refrigerant flowing from the heat exchange component to the indoor heat exchanger. The second valve component is located on the side of the heat exchange component closer to the outdoor heat exchanger and is used to throttle the refrigerant flowing from the heat exchange component to the outdoor heat exchanger. The heat exchange component can exchange heat with the electronic control component, ensuring the working stability of the electronic control component. While preventing condensation on the electronic control component, the throttling device can be adjusted in both cooling and heating modes of the refrigeration system, which can meet different usage requirements, making the control more flexible and reducing the production cost of the refrigeration system.

[0007] In addition, the refrigeration system according to the above embodiments of the present invention may also have the following additional technical features:

[0008] According to some embodiments of the refrigeration system of the present invention, the first valve assembly is a one-way throttle valve; and / or, the second valve assembly is a one-way throttle valve.

[0009] According to some embodiments of the present invention, the first valve assembly includes: a first one-way valve and a first throttling element, the first one-way valve and the first throttling element being connected in parallel, and the first one-way valve being used to control the refrigerant to flow only from the indoor heat exchanger to the heat exchange assembly.

[0010] According to some embodiments of the present invention, the first valve assembly further includes: a first sub-pipeline and a second sub-pipeline connected in parallel, the first check valve being disposed on the first sub-pipeline, and the first throttling element being disposed on the second sub-pipeline.

[0011] According to some embodiments of the present invention, the first one-way valve includes: a first valve body having a first cavity; a first movable member movably disposed in the first cavity to divide the first cavity into a first sub-cavity and a second sub-cavity, the first movable member being used to connect or disconnect the first sub-cavity and the second sub-cavity, and the two ends of the first throttling member being connected to the first sub-cavity and the second sub-cavity respectively.

[0012] According to some embodiments of the present invention, the first throttling element is a throttling valve or a capillary tube; and / or, when the first throttling element is a capillary tube, a portion of the capillary tube is wound into a ring.

[0013] According to some embodiments of the present invention, the second valve assembly includes: a second one-way valve and a second throttling element, the second one-way valve and the second throttling element are connected in parallel, and the second one-way valve is used to control the refrigerant to flow only from the outdoor heat exchanger to the heat exchange assembly.

[0014] According to some embodiments of the present invention, the second valve assembly further includes: a third sub-pipeline and a fourth sub-pipeline connected in parallel, the second check valve being disposed on the third sub-pipeline, and the second throttling element being disposed on the fourth sub-pipeline.

[0015] According to some embodiments of the present invention, the second one-way valve includes: a second valve body having a second cavity; a second movable member movably disposed in the second cavity to divide the second cavity into a third sub-cavity and a fourth sub-cavity, the second movable member being used to connect or disconnect the third sub-cavity and the fourth sub-cavity, and the two ends of the second throttling member being connected to the third sub-cavity and the fourth sub-cavity respectively.

[0016] According to some embodiments of the present invention, the second throttling element is a throttling valve or a capillary tube; and / or, when the second throttling element is a capillary tube, a portion of the capillary tube is wound into a ring.

[0017] According to some embodiments of the present invention, a first filter element is provided between the first valve assembly and the indoor heat exchanger; and / or, a second filter element is provided between the second valve assembly and the outdoor heat exchanger.

[0018] The air conditioner according to an embodiment of the present invention includes the refrigeration system described in the embodiment of the present invention.

[0019] According to an embodiment of the present invention, an air conditioner is connected at one end of a connecting branch between an indoor heat exchanger and a throttling device, and at the other end of the connecting branch between the throttling device and an outdoor heat exchanger. A heat exchange assembly is connected in series on the connecting branch. A first valve assembly and a second valve assembly are both connected in series on the connecting branch. The first valve assembly is located on the side of the heat exchange assembly closer to the indoor heat exchanger and is used to throttle the refrigerant flowing from the heat exchange assembly to the indoor heat exchanger. The second valve assembly is located on the side of the heat exchange assembly closer to the outdoor heat exchanger and is used to throttle the refrigerant flowing from the heat exchange assembly to the outdoor heat exchanger. The heat exchange assembly can exchange heat with the electronic control components, ensuring the working stability of the electronic control components. While preventing condensation on the electronic control components, the throttling device can be adjusted in both cooling and heating modes of the refrigeration system, meeting different usage requirements, making control more flexible, and reducing the production cost of the refrigeration system.

[0020] According to some embodiments of the present invention, the air conditioner includes an outdoor unit, the outdoor unit includes a housing and an electrical control box mounted on the housing, the heat exchange assembly is fixed on the electrical control box, and the first valve assembly and the second valve assembly are disposed below the electrical control box.

[0021] According to some embodiments of the present invention, the first valve assembly and the second valve assembly are arranged vertically or inclined; and / or, the throttling device includes an electronic expansion valve, and the throttling device is arranged vertically or inclined.

[0022] According to some embodiments of the present invention, the connecting branch includes a first pipe connecting the heat exchange component and the first valve component and a second pipe connecting the heat exchange component and the second valve component. One end of the first valve component is supported on the electrical control box through the first pipe, and one end of the second valve component is supported on the electrical control box through the second pipe.

[0023] According to some embodiments of the present invention, the refrigeration system further includes valves, the outdoor unit further includes a valve plate fixed on the casing, the valves are fixed on the valve plate, and the connecting branch further includes a third pipe connecting the valves and the second valve assembly, the second valve assembly being supported on the valve plate through the third pipe.

[0024] According to some embodiments of the present invention, the connecting branch further includes a fourth pipe connecting the outdoor heat exchanger and the first valve assembly, the first valve assembly being supported on the outdoor heat exchanger via the fourth pipe.

[0025] According to some embodiments of the present invention, at least one of the first pipe, the second pipe, the third pipe, and the fourth pipe is provided with a bent section.

[0026] According to some embodiments of the present invention, the refrigeration system further includes a first tee pipe and a second tee pipe. The first tee pipe includes a first port, a second port, and a third port, with the first port facing downwards and the second and third ports facing upwards. The second tee pipe includes a fourth port, a fifth port, and a sixth port, with the fourth port facing downwards and the fifth and sixth ports facing upwards. The throttling device is disposed above the first tee pipe and the second tee pipe, with its two ends connected to the second port and the fifth port, respectively. The first valve assembly and the second valve assembly are disposed above the first tee pipe and the second tee pipe, with the lower end of the first valve assembly connected to the third port and the lower end of the second valve assembly connected to the sixth port.

[0027] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0028] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0029] Figure 1 This is a system diagram of the refrigeration system according to the first embodiment of the present invention;

[0030] Figure 2 This is a schematic diagram of a refrigeration system according to the first embodiment of the present invention;

[0031] Figure 3 This is a schematic diagram of the structure of the refrigeration system according to the first embodiment of the present invention;

[0032] Figure 4 This is a partial structural schematic diagram of an air conditioner according to the first embodiment of the present utility model;

[0033] Figure 5 This is a system diagram of the refrigeration system according to the second embodiment of the present invention;

[0034] Figure 6 This is a schematic diagram of a refrigeration system according to the second embodiment of the present invention;

[0035] Figure 7 This is a schematic diagram of the structure of the refrigeration system according to the second embodiment of the present invention;

[0036] Figure 8 This is a partial structural schematic diagram of an air conditioner according to the second embodiment of the present utility model;

[0037] Figure 9 This is a schematic diagram of a refrigeration system according to the third embodiment of the present invention;

[0038] Figure 10 This is a schematic diagram of the structure of the refrigeration system according to the third embodiment of the present utility model;

[0039] Figure 11 This is a partial structural schematic diagram of an air conditioner according to the third embodiment of the present utility model.

[0040] Figure label:

[0041] 100. Refrigeration system; 200. Air conditioner; 300. Outdoor unit;

[0042] 10. Compressor; 11. Exhaust port; 12. Intake port;

[0043] 21. Outdoor heat exchanger; 22. Indoor heat exchanger; 23. Throttling device;

[0044] 30. Reversing assembly; 31. First valve port; 32. Second valve port; 33. Third valve port; 34. Fourth valve port;

[0045] 40. Heat exchange components; 41. Electrical control components;

[0046] 50. Connecting branch; 51. First piping; 52. Second piping;

[0047] 61. First valve assembly; 62. Second valve assembly; 611. First check valve; 612. First throttling element; 613. First sub-pipeline; 614. Second sub-pipeline; 621. Second check valve; 622. Second throttling element; 623. Third sub-pipeline; 624. Fourth sub-pipeline;

[0048] 71. First filter element; 72. Second filter element;

[0049] 81. Sensor; 82. Liquid reservoir; 83. Bracket; 84. First tee pipe; 85. Housing; 86. Valve plate; 87. Second tee pipe; 821. Air inlet; 822. Air outlet; 841. First port; 842. Second port; 843. Third port; 871. Fourth port; 872. Fifth port; 873. Sixth port. Detailed Implementation

[0050] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0051] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0052] In the description of this utility model, "first feature" and "second feature" may include one or more of the features, "multiple" means two or more, "first feature above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them, and "first feature above", "above" and "over" the second feature may include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0053] The following description, with reference to the accompanying drawings, describes a refrigeration system 100 according to an embodiment of the present invention.

[0054] Reference Figures 1-11 As shown, the refrigeration system 100 according to an embodiment of the present invention may include: a compressor 10, an outdoor heat exchanger 21, an indoor heat exchanger 22, and a reversing assembly 30.

[0055] Specifically, the compressor 10 has an exhaust port 11 and an intake port 12. One end of the outdoor heat exchanger 21 is connected to one end of the indoor heat exchanger 22. The reversing assembly 30 has a first valve port 31, a second valve port 32, a third valve port 33, and a fourth valve port 34. The first valve port 31 is connected to the exhaust port 11, the second valve port 32 is connected to the other end of the outdoor heat exchanger 21, the third valve port 33 is connected to the intake port 12, and the fourth valve port 34 is connected to the other end of the indoor heat exchanger 22. The first valve port 31 is connected to the second valve port 12. The first valve port 31 can be connected to the second valve port 32, or the first valve port 31 can be connected to the fourth valve port 34. The third valve port 33 can be connected to the other of the second and fourth valve ports 32, or the third valve port 33 can be connected to the fourth valve port 34. This allows for the connection of the indoor heat exchanger 22, the outdoor heat exchanger 21, the reversing assembly 30, and the compressor 10, meeting the required connectivity requirements. For example, the reversing assembly 30 can be a four-way reversing valve.

[0056] Therefore, by controlling the reversing component 30, the refrigerant compressed by the compressor 10 can flow through the indoor heat exchanger 22 and the outdoor heat exchanger 21 to meet the user's needs, such as realizing the cooling and heating functions of the refrigeration system 100, thereby improving the multifunctionality and flexibility of the refrigeration system 100.

[0057] At the same time, such as Figures 1-11 As shown, a throttling device 23 is provided between one end of the outdoor heat exchanger 21 and one end of the indoor heat exchanger 22. The throttling device 23 can precisely adjust the flow rate and pressure of the refrigerant according to the operating state of the refrigeration system 100, which is beneficial to improving the energy efficiency ratio and stability of the refrigeration system 100. For example, the throttling device 23 can be an electronic throttling device 23.

[0058] In addition, such as Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 9 As shown, the refrigeration system 100 also includes a heat exchange component 40, which can exchange heat with the electronic control component 41. For example, the heat exchange component 40 can dissipate heat from the electronic control component 41 to ensure the working stability of the electronic control component 41.

[0059] In related technologies, a solution using dual one-way throttling valves or a throttling device plus a one-way throttling valve is adopted. However, the throttling device can only be used in the cooling or heating mode of the refrigeration system. Alternatively, a dual throttling device can be used to achieve separate control of the cooling flow path and the heating flow path, but the cost is high.

[0060] Therefore, in this utility model, as Figures 1-11 As shown, the refrigeration system 100 also includes a connecting branch 50, a first valve assembly 61, and a second valve assembly 62. One end of the connecting branch 50 is connected between the indoor heat exchanger 22 and the throttling device 23, and the other end of the connecting branch 50 is connected between the throttling device 23 and the outdoor heat exchanger 21. The heat exchange assembly 40 is connected in series on the connecting branch 50. The first valve assembly 61 and the second valve assembly 62 are both connected in series on the connecting branch 50. The first valve assembly 61 is located on the side of the heat exchange assembly 40 closer to the indoor heat exchanger 22, and the first valve assembly 61 can throttle the refrigerant flowing from the heat exchange assembly 40 to the indoor heat exchanger 22. The second valve assembly 62 is located on the side of the heat exchange assembly 40 closer to the outdoor heat exchanger 21, and the second valve assembly 62 can throttle the refrigerant flowing from the heat exchange assembly 40 to the outdoor heat exchanger 21.

[0061] like Figure 1 and Figure 5As shown, during the cooling operation of the refrigeration system 100, the first valve port 31 is connected to the second valve port 32, and the third valve port 33 is connected to the fourth valve port 34. The refrigerant compressed by the compressor 10 is discharged from the compressor 10 through the exhaust port 11 and enters the outdoor heat exchanger 21 through the first valve port 31 and the second valve port 32 for condensation. A portion of the condensed refrigerant in the outdoor heat exchanger 21 enters the connecting branch 50, flows through the second valve assembly 62, and enters the heat exchange assembly 40. The heat exchange assembly 40 performs heat exchange on the electronic control element 41, and the second valve assembly 62 does not throttle the refrigerant, preventing condensation on the electronic control element 41. The refrigerant flowing out of the heat exchange assembly 40 flows through the first valve assembly 61. 1. The refrigerant can be throttled to meet the control requirements of the refrigerant and flow out of the connecting branch 50. Another part of the refrigerant, after being condensed in the outdoor heat exchanger 21, passes through the throttling device 23. The throttling device 23 can regulate the flow rate and pressure of the refrigerant to meet the required regulation requirements. Then, it merges with the refrigerant flowing out from the connecting branch 50 and enters the indoor heat exchanger 22 for evaporation and heat absorption to meet the cooling requirements of the room. Finally, it enters the compressor 10 from the suction port 12 through the fourth valve port 34 and the third valve port 33, thus completing the cycle.

[0062] When the refrigeration system 100 is in heating mode, the first valve port 31 is connected to the fourth valve port 34, and the third valve port 33 is connected to the second valve port 32. The refrigerant compressed by the compressor 10 is discharged from the compressor 10 through the exhaust port 11 and enters the indoor heat exchanger 22 through the first valve port 31 and the fourth valve port 34 to meet the indoor heating demand. After heat exchange in the indoor heat exchanger 22, a portion of the refrigerant enters the connecting branch 50, flows through the first valve assembly 61, and enters the heat exchange assembly 40. The heat exchange assembly 40 performs heat exchange on the electronic control element 41, and the first valve assembly 61 does not throttle the refrigerant, preventing condensation on the electronic control element 41. The refrigerant flowing out of the heat exchange assembly 40 flows through the second valve assembly. 62. The second valve assembly 62 can throttle the refrigerant to meet the control requirements of the refrigerant and flow out of the connecting branch 50. Another part of the refrigerant, after heat exchange in the indoor heat exchanger 22, passes through the throttling device 23. The throttling device 23 can regulate the flow rate and pressure of the refrigerant to meet the required regulation requirements. Then, it merges with the refrigerant flowing out from the connecting branch 50 and enters the outdoor heat exchanger 21 for evaporation and heat absorption. Then, it enters the compressor 10 from the suction port 12 through the second valve port 32 and the third valve port 33, thus completing the cycle.

[0063] Therefore, the refrigeration system 100 of this utility model can prevent condensation on the electronic control component 41, and the throttling device 23 can be adjusted in both cooling and heating of the refrigeration system 100, so as to meet different usage needs, make the control more flexible, improve the user experience, and reduce the production cost of the refrigeration system 100.

[0064] For example, when the refrigeration system 100 is running in refrigeration mode, when it enters the low-load refrigeration and heating mode, the control throttling device 23 reduces the number of steps or closes completely, so that the refrigerant mainly or entirely flows in the connecting branch 50, and the refrigerant has no throttling effect before entering the heat exchange component 40. After exiting the heat exchange component 40, the refrigerant is throttled, which can ensure that the electronic control component 41 has no risk of condensation.

[0065] In some embodiments, such as Figure 1 and Figure 5 As shown, the refrigeration system 100 also includes a liquid receiver 82, which has an inlet 821 and an outlet 822. A third valve port 33 is connected to the inlet 821, and an intake port 12 is connected to the outlet 822. The refrigerant flowing out from the third valve port 33 can enter the liquid receiver 82 for storage through the inlet 821. The refrigerant in the liquid receiver 82 can enter the compressor 10 for compression through the outlet 822 and the intake port 12. The compressed refrigerant can flow out of the compressor 10 through the exhaust port 11, thus fulfilling the refrigerant compression requirement.

[0066] According to an embodiment of the present invention, the refrigeration system 100 has one end connected between the indoor heat exchanger 22 and the throttling device 23 via a connecting branch 50, and the other end connected between the throttling device 23 and the outdoor heat exchanger 21. A heat exchange assembly 40 is connected in series on the connecting branch 50. A first valve assembly 61 and a second valve assembly 62 are both connected in series on the connecting branch 50. The first valve assembly 61 is located on the side of the heat exchange assembly 40 closest to the indoor heat exchanger 22 and is used to control the refrigerant flowing from the heat exchange assembly 40 to the indoor heat exchanger 22. The second valve assembly 62 is located on the side of the heat exchange assembly 40 near the outdoor heat exchanger 21 and is used to throttle the refrigerant flowing from the heat exchange assembly 40 to the outdoor heat exchanger 21. The heat exchange assembly 40 can exchange heat with the electronic control element 41, ensuring the working stability of the electronic control element 41. While preventing condensation on the electronic control element 41, the throttling device 23 can be adjusted in both cooling and heating of the refrigeration system 100, which can meet different usage requirements, making the control more flexible, and at the same time reducing the production cost of the refrigeration system 100.

[0067] In some embodiments, such as Figures 2-4 As shown, the first valve assembly 61 can be a one-way throttle valve, which can throttle the refrigerant flowing from the heat exchange assembly 40 to the indoor heat exchanger 22, meet the control requirements of the refrigerant, and has a simple structure, which can reduce the number of components and the complexity of the piping, which is conducive to reducing the space occupied and ensuring a compact structure.

[0068] In some embodiments, such as Figures 2-4As shown, the second valve assembly 62 can be a one-way throttle valve, which can throttle the refrigerant flowing from the heat exchange assembly 40 to the outdoor heat exchanger 21, meet the control requirements of the refrigerant, and has a simple structure, which can reduce the number of components and the complexity of the pipeline, thus reducing the space occupied and ensuring a compact structure.

[0069] In some embodiments of this utility model, such as Figures 5-11 As shown, the first valve assembly 61 includes a first check valve 611 and a first throttling element 612, which are connected in parallel. The first check valve 611 controls the refrigerant to flow only from the indoor heat exchanger 22 to the heat exchange assembly 40. This allows the refrigerant flowing from the heat exchange assembly 40 to the indoor heat exchanger 22 to be throttled by the first throttling element 612, while the refrigerant flowing from the indoor heat exchanger 22 to the heat exchange assembly 40 can flow smoothly through the first check valve 611 without throttling, thus meeting the required control needs. Furthermore, the first valve assembly 61 has a simple structure, which reduces production costs.

[0070] According to some embodiments of this utility model, such as Figures 5-8 As shown, the first valve assembly 61 also includes a first sub-pipe 613 and a second sub-pipe 614 connected in parallel. The first check valve 611 is disposed on the first sub-pipe 613, and the first throttling element 612 is disposed on the second sub-pipe 614, thereby fulfilling the installation requirements of the first check valve 611 and the first throttling element 612, and making the structure of the refrigeration system 100 simple, compact, and easy to assemble.

[0071] In some embodiments of this utility model, such as Figure 9 and Figure 11 As shown, the first one-way valve 611 includes a first valve body and a first moving member. The first valve body has a first cavity. The first moving member is movably disposed in the first cavity. The first moving member can divide the first cavity into a first sub-cavity and a second sub-cavity. The first moving member can connect or disconnect the first sub-cavity and the second sub-cavity to achieve different connection requirements. The two ends of the first throttling member 612 are respectively connected to the first sub-cavity and the second sub-cavity. Therefore, when the refrigerant flows from the heat exchange component 40 to the indoor heat exchanger 22, the first moving part disconnects the first sub-cavity and the second sub-cavity, so that the refrigerant flowing out of the heat exchange component 40 flows to the indoor heat exchanger 22 only through the first throttling element 612, thus achieving throttling of the refrigerant; when the refrigerant flows from the indoor heat exchanger 22 to the heat exchange component 40, the first moving part connects the first sub-cavity and the second sub-cavity, so that the refrigerant flowing out of the indoor heat exchanger 22 can directly flow to the heat exchange component 40 through the first sub-cavity and the second sub-cavity without throttling the refrigerant, thus meeting the required control requirements, and can integrate the two flow paths at both ends of the heat exchange component 40 into one flow path, making the structure compact.

[0072] According to some embodiments of this utility model, such as Figures 5-11As shown, the first throttling element 612 can be a throttling valve or a capillary tube, both of which can meet the throttling requirements of the refrigerant. They are simple in structure, low in cost, and easy to reduce the production cost of the refrigeration system 100.

[0073] In some embodiments of this utility model, such as Figures 5-11 As shown, when the first throttling element 612 is a capillary tube, part of the capillary tube is wound into a ring, which can reduce the space occupied by the capillary tube, ensure a compact structure, and thus reduce the space occupied by the refrigeration system 100.

[0074] In some embodiments, such as Figures 5-11 As shown, the second valve assembly 62 includes a second one-way valve 621 and a second throttling element 622, which are connected in parallel. The second one-way valve 621 controls the refrigerant to flow only from the outdoor heat exchanger 21 to the heat exchange assembly 40. This allows the refrigerant flowing from the heat exchange assembly 40 to the outdoor heat exchanger 21 to be throttled by the second throttling element 622, while the refrigerant flowing from the outdoor heat exchanger 21 to the heat exchange assembly 40 can flow smoothly through the second one-way valve 621 without throttling, thus meeting the required control needs. Furthermore, the second valve assembly 62 has a simple structure, reducing production costs.

[0075] According to some embodiments of this utility model, such as Figures 5-8 As shown, the second valve assembly 62 also includes a third sub-pipe 623 and a fourth sub-pipe 624 connected in parallel. The second check valve 621 is disposed on the third sub-pipe 623, and the second throttling element 622 is disposed on the fourth sub-pipe 624, thereby fulfilling the installation requirements of the second check valve 621 and the second throttling element 622, and making the structure of the refrigeration system 100 simple, compact, and easy to assemble.

[0076] In some embodiments where the first valve assembly 61 also includes a first sub-pipeline 613 and a second sub-pipeline 614 connected in parallel, such as Figures 5-8 As shown, during the cooling operation of the refrigeration system 100, the first valve port 31 is connected to the second valve port 32, and the third valve port 33 is connected to the fourth valve port 34. The refrigerant compressed by the compressor 10 is discharged from the compressor 10 through the exhaust port 11, and enters the outdoor heat exchanger 21 for condensation through the first valve port 31 and the second valve port 32. The refrigerant after condensation in the outdoor heat exchanger 21 is divided into two paths. The first path flows through the throttling device 23, and the second path flows through the second one-way valve 621 and the heat exchange component 40. The refrigerant in the heat exchange component 40 can exchange heat with the electronic control element 41. The refrigerant after heat exchange flows through the first throttling device 612 for throttling. Then, the refrigerant flowing out of the first path and the refrigerant flowing out of the second path merge and enter the indoor heat exchanger 22 for evaporation and heat absorption to meet the cooling needs of the room. Finally, it enters the compressor 10 from the suction port 12 through the fourth valve port 34 and the third valve port 33, thus completing the cycle.

[0077] When the refrigeration system 100 is in heating mode, the first valve port 31 is connected to the fourth valve port 34, and the third valve port 33 is connected to the second valve port 32. The refrigerant compressed by the compressor 10 is discharged from the compressor 10 through the exhaust port 11, and enters the indoor heat exchanger 22 through the first valve port 31 and the fourth valve port 34 to meet the heating needs of the room. After heat exchange in the indoor heat exchanger 22, the refrigerant is divided into two paths. The first path flows through the throttling device 23, and the second path flows through the first one-way valve 611 and the heat exchange component 40. The refrigerant in the heat exchange component 40 can exchange heat with the electronic control element 41. After heat exchange, the refrigerant flows through the second throttling device 622 for throttling. Then, the refrigerant flowing out of the first path and the refrigerant flowing out of the second path merge and enter the outdoor heat exchanger 21 for evaporation and heat absorption. Then, it enters the compressor 10 from the suction port 12 through the second valve port 32 and the third valve port 33, thus completing the cycle.

[0078] In some embodiments of this utility model, such as Figure 9 and Figure 11 As shown, the second one-way valve 621 includes a second valve body and a second moving member. The second valve body has a second cavity, and the second moving member is movably disposed in the second cavity. The second moving member can divide the second cavity into a third sub-cavity and a fourth sub-cavity. The second moving member can connect or disconnect the third sub-cavity and the fourth sub-cavity to achieve different connection requirements. The two ends of the second throttling member 622 are respectively connected to the third sub-cavity and the fourth sub-cavity. Therefore, when the refrigerant flows from the heat exchange component 40 to the outdoor heat exchanger 21, the second moving part disconnects the third and fourth sub-cavities, so that the refrigerant flowing out of the heat exchange component 40 flows to the outdoor heat exchanger 21 only through the second throttling element 622, thus achieving throttling of the refrigerant; when the refrigerant flows from the outdoor heat exchanger 21 to the heat exchange component 40, the second moving part connects the third and fourth sub-cavities, so that the refrigerant flowing out of the indoor heat exchanger 22 can directly flow to the heat exchange component 40 through the third and fourth sub-cavities without throttling the refrigerant, meeting the required control requirements, and integrating the two flow paths at both ends of the heat exchange component 40 into one flow path, making the structure compact.

[0079] According to some embodiments of this utility model, such as Figures 5-11 As shown, the second throttling element 622 can be a throttling valve or a capillary tube, both of which can meet the throttling requirements of the refrigerant. They are simple in structure, low in cost, and easy to reduce the production cost of the refrigeration system 100.

[0080] In some embodiments of this utility model, such as Figures 5-11 As shown, when the second throttling element 622 is a capillary tube, part of the capillary tube is wound into a ring, which can reduce the space occupied by the capillary tube, ensure a compact structure, and thus reduce the space occupied by the refrigeration system 100.

[0081] In some embodiments, such as Figure 2 , Figure 6 and Figure 9 As shown, a first filter element 71 is provided between the first valve assembly 61 and the indoor heat exchanger 22. The first filter element 71 can filter the refrigerant, reduce impurities in the refrigerant, prevent impurities from damaging the structure of the refrigeration system 100, and ensure the normal operation of the refrigeration system 100.

[0082] In some embodiments, such as Figure 2 , Figure 6 and Figure 9 As shown, the first filter element 71 is located between the indoor heat exchanger 22 and the throttling device 23. The first filter element 71 can filter the refrigerant, reduce impurities in the refrigerant, prevent impurities from damaging the structure of the refrigeration system 100, and ensure the normal operation of the refrigeration system 100.

[0083] In some embodiments, such as Figure 2 , Figure 6 and Figure 9 As shown, a second filter element 72 is provided between the second valve assembly 62 and the outdoor heat exchanger 21. The second filter element 72 can filter the refrigerant, reduce impurities in the refrigerant, prevent impurities from damaging the structure of the refrigeration system 100, and ensure the normal operation of the refrigeration system 100.

[0084] In some embodiments, such as Figure 2 , Figure 6 and Figure 9 As shown, the second filter element 72 is located between the outdoor heat exchanger 21 and the throttling device 23. The second filter element 72 can filter the refrigerant, reduce impurities in the refrigerant, prevent impurities from damaging the structure of the refrigeration system 100, and ensure the normal operation of the refrigeration system 100.

[0085] In some embodiments, such as Figure 1 and Figure 5 As shown, the refrigeration system 100 also includes a sensor 81. The sensor 81 can detect internal parameters of the refrigeration system 100, facilitating precise control of parameters such as temperature, pressure, and flow rate, and ensuring efficient and stable operation of the refrigeration system 100. For example, the sensor 81 can be a temperature sensor 81, which can detect the exhaust temperature of the compressor 10, the temperature of the indoor heat exchanger 22, or the temperature of the outdoor heat exchanger 21; or, the sensor 81 can be a high-pressure sensor 81 or a low-pressure sensor 81, which can detect the pressure in the flow path of the refrigeration system 100.

[0086] The air conditioner 200 according to an embodiment of the present invention includes a refrigeration system 100 according to an embodiment of the present invention. Since the refrigeration system 100 according to an embodiment of the present invention has the aforementioned beneficial technical effects, the air conditioner 200 according to an embodiment of the present invention connects one end of a connecting branch 50 between the indoor heat exchanger 22 and the throttling device 23, and the other end of the connecting branch 50 connects between the throttling device 23 and the outdoor heat exchanger 21. A heat exchange assembly 40 is connected in series on the connecting branch 50. A first valve assembly 61 and a second valve assembly 62 are both connected in series on the connecting branch 50. The first valve assembly 61 is located on the side of the heat exchange assembly 40 closest to the indoor heat exchanger 22 and is used to control the flow of heat from the indoor heat exchanger 21 to the outdoor heat exchanger 22. The refrigerant flowing from the heat exchange component 40 to the indoor heat exchanger 22 is throttled. The second valve assembly 62 is located on the side of the heat exchange component 40 near the outdoor heat exchanger 21 and is used to throttle the refrigerant flowing from the heat exchange component 40 to the outdoor heat exchanger 21. The heat exchange component 40 can exchange heat with the electronic control element 41 to ensure the working stability of the electronic control element 41. While preventing condensation on the electronic control element 41, the throttling device 23 can be adjusted in both cooling and heating of the refrigeration system 100 to meet different usage requirements, making the control more flexible and reducing the production cost of the refrigeration system 100.

[0087] In some embodiments, the air conditioner 200 may be a household air conditioner with an air-cooled condenser, a fully enclosed electric motor-compressor, and a rated cooling capacity of 14,000 W or less; or, the air conditioner 200 may be a multi-split air conditioning unit or heat pump unit with an air-cooled condenser, a fully enclosed electric motor-compressor, and a rated cooling capacity of 33,500 W or less. For example, the air conditioner 200 may be a split type, a packaged type, or a single-split cooling unit.

[0088] In some embodiments, the air conditioner 200 includes an outdoor unit, and both the first valve assembly 61 and the second valve assembly 62 are installed on the outdoor unit, which can meet the installation requirements of the first valve assembly 61 and the second valve assembly 62.

[0089] In some embodiments, the compressor 10, outdoor heat exchanger 21, indoor heat exchanger 22, reversing assembly 30, heat exchange assembly 40, connecting branch 50, first valve assembly 61, second valve assembly 62 and throttling device 23 are all connected by copper pipes to meet the required connection requirements and have good corrosion resistance, which can extend the service life.

[0090] In some embodiments of this utility model, such as Figure 3 , Figure 4 , Figure 7 , Figure 8 , Figure 10 and Figure 11As shown, the air conditioner includes an outdoor unit 300, which includes a housing 85 and an electrical control box. The electrical control box is installed on the housing 85, which protects the electrical control box from exposure and damage, thus extending the service life of the air conditioner 200.

[0091] Furthermore, the heat exchange component 40 is fixed on the electrical control box, which facilitates heat exchange with the electrical control box and the electrical control components 41 inside the box, ensuring the stable operation of the electrical control components 41. The first valve assembly 61 and the second valve assembly 62 are located below the electrical control box, which can prevent condensate from the first valve assembly 61, the second valve assembly 62, and the piping from dripping into the electrical control box, ensuring safety and avoiding potential safety hazards. At the same time, it can ensure a compact structure and reduce the space occupied by the refrigeration system 100.

[0092] In some embodiments, such as Figure 3 , Figure 4 , Figure 7 , Figure 8 , Figure 10 and Figure 11 As shown, the first valve assembly 61 and the second valve assembly 62 are arranged vertically or at an angle, which ensures a compact structure, reduces the space occupied, and facilitates connection between the first valve assembly 61 and the second valve assembly 62 and other structures, making the connection more convenient. At the same time, the valve cores of the first valve assembly 61 and the second valve assembly 62 can be arranged vertically or at an angle, and the valve cores can move under the action of gravity, reducing friction and thus reducing the wear of the valve cores inside the first valve assembly 61 and the second valve assembly 62, which helps to extend their service life.

[0093] In some embodiments, such as Figure 3 , Figure 4 , Figure 7 , Figure 8 , Figure 10 and Figure 11 As shown, the throttling device 23 includes an electronic expansion valve. The throttling device 23 can be set vertically or inclined, which can ensure a compact structure, reduce the space occupied, and allow the valve core of the electronic expansion valve to be set vertically or inclined. The valve core can move under the action of gravity, reducing friction and thus reducing the wear of the valve core of the electronic expansion valve, which helps to extend its service life.

[0094] According to some embodiments of this utility model, such as Figure 3 , Figure 4 , Figure 7 , Figure 8 , Figure 10 and Figure 11As shown, the connecting branch 50 includes a first pipe 51 and a second pipe 52. The first pipe 51 connects the heat exchange assembly 40 and the first valve assembly 61, and the second pipe 52 connects the heat exchange assembly 40 and the second valve assembly 62. One end of the first valve assembly 61 is supported on the electrical control box through the first pipe 51, and one end of the second valve assembly 62 is supported on the electrical control box through the second pipe 52. This allows the electrical control box to support the first valve assembly 61 and the second valve assembly 62, ensuring reliable support for the first valve assembly 61 and the second valve assembly 62, thereby reducing the impact of vibration on the first valve assembly 61 and the second valve assembly 62.

[0095] In some embodiments of this utility model, such as Figure 3 , Figure 4 , Figure 7 , Figure 8 , Figure 10 and Figure 11 As shown, the refrigeration system 100 also includes valves, and the outdoor unit 300 also includes a valve plate 86. The valve plate 86 is fixed to the housing 85, and the valves are fixed to the valve plate 86. The valve plate 86 can fix the valves, meeting the valve fixing requirements. For example, the valve is a high-pressure valve, which can meet different control requirements.

[0096] In addition, the connecting branch 50 also includes a third pipe, which is connected between the valve and the second valve assembly 62. The second valve assembly 62 is supported on the valve plate through the third pipe, so that the valve plate can support the second valve assembly 62, thereby further ensuring reliable support for the second valve assembly 62 and reducing the impact of vibration on the second valve assembly 62.

[0097] According to some embodiments of the present invention, the connecting branch 50 further includes a fourth pipe, which is connected between the outdoor heat exchanger 21 and the first valve assembly 61. The first valve assembly 61 is supported on the outdoor heat exchanger 21 through the fourth pipe, so that the outdoor heat exchanger 21 can support the first valve assembly 61, thereby further ensuring reliable support for the first valve assembly 61 and reducing the impact of vibration on the first valve assembly 61.

[0098] In some embodiments, at least one of the first, second, third, and fourth pipes is provided with a bend, that is, the first, second, third, or fourth pipe is provided with a bend, or two of the first, second, third, and fourth pipes are provided with bends, or three of the first, second, third, or fourth pipes are provided with bends, or all of the first, second, third, and fourth pipes are provided with bends. This can increase structural strength, and during vibration, the bends can absorb some of the vibration, effectively reduce stress, and help extend service life.

[0099] In some embodiments of this utility model, such as Figures 2-4 , Figures 6-11 As shown, the refrigeration system 100 also includes a first tee pipe 84 and a second tee pipe 87. The first tee pipe 84 includes a first port 841, a second port 842 and a third port 843, with the first port 841 facing downwards and the second port 842 and the third port 843 facing upwards. The second tee pipe 87 includes a fourth port 871, a fifth port 872 and a sixth port 873, with the fourth port 871 facing downwards and the fifth port 872 and the sixth port 873 facing upwards.

[0100] The throttling device 23 is positioned above the first three-way pipe 84 and the second three-way pipe 87. The two ends of the throttling device 23 are connected to the second port 842 and the fifth port 872, respectively, enabling communication between the throttling device 23 and the first three-way pipe 84 and the second three-way pipe 87. The first valve assembly 61 and the second valve assembly 62 are positioned above the first three-way pipe 84 and the second three-way pipe 87. The lower end of the first valve assembly 61 is connected to the third port 843, enabling communication between the first valve assembly 61 and the first three-way pipe 84. The lower end of the second valve assembly 62 is connected to the sixth port 873, enabling communication between the second valve assembly 62 and the second three-way pipe 87. This allows for the connection of the throttling device 23 with the first valve assembly 61 and the second valve assembly 62, meeting the required communication needs while ensuring a compact structure and reducing space occupation. Furthermore, the simple structure of the first three-way pipe 84 and the second three-way pipe 87 facilitates lower production costs.

[0101] In some embodiments, such as Figure 2 , Figure 3 , Figure 6 , Figure 7 , Figure 9 and Figure 10 As shown, the indoor heat exchanger 22, the first valve assembly 61, and the throttling device 23 are connected to each other through copper pipes and the first tee pipe 84, while the outdoor heat exchanger 21, the second valve assembly 62, and the throttling device 23 are connected to each other through copper pipes and the second tee pipe 87. This meets the required connection requirements and has a simple structure that is easy to assemble.

[0102] In embodiments of this utility model, the specific connection method of the copper pipe, the first tee pipe 84, and the second tee pipe 87 can be set according to actual conditions. For example, the first tee pipe 84 and the second tee pipe 87 can be connected as follows: Figure 2 The copper tube shown in the diagram can meet the required connection needs.

[0103] In some embodiments, the copper pipe and the first tee pipe 84 and the second tee pipe 87 are connected by welding to ensure reliable connection and facilitate processing and manufacturing, thereby reducing production costs.

[0104] In some embodiments, such as Figure 3 , Figure 7 and Figure 10 As shown, the copper pipe portion that forms the connecting branch 50 is constructed as a heat exchange component 40, which achieves heat exchange with the electronic control component 41 through the copper pipe, meeting the required heat exchange needs. Moreover, the structure is simple and can reduce production costs.

[0105] In addition, such as Figure 3 , Figure 7 and Figure 10 As shown, the outdoor unit also includes a bracket 83, on which copper pipes can be supported to achieve the requirements of fixing and limiting the copper pipes, ensuring reliable heat exchange for the electronic control components 41.

[0106] Other configurations and operations of the refrigeration system 100 and air conditioner 200 according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0107] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0108] In the description of this specification, the references to terms such as "embodiment," "specific embodiment," and "example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0109] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A refrigeration system, characterized in that, include: The compressor has an exhaust port and an intake port; An outdoor heat exchanger and an indoor heat exchanger, wherein one end of the outdoor heat exchanger is connected to one end of the indoor heat exchanger and a throttling device is provided between one end of the outdoor heat exchanger and one end of the indoor heat exchanger; A reversing assembly having a first valve port, a second valve port, a third valve port, and a fourth valve port, wherein the first valve port is connected to the exhaust port, the second valve port is connected to the other end of the outdoor heat exchanger, the third valve port is connected to the intake port, the fourth valve port is connected to the other end of the indoor heat exchanger, the first valve port is connected to one of the second and fourth valve ports, and the third valve port is connected to the other of the second and fourth valve ports; A heat exchange assembly for exchanging heat with electronic control components; A connecting branch is provided, one end of which is connected between the indoor heat exchanger and the throttling device, and the other end of which is connected between the throttling device and the outdoor heat exchanger. The heat exchange assembly is connected in series on the connecting branch. A first valve assembly and a second valve assembly are connected in series on the connecting branch. The first valve assembly is located on the side of the heat exchange assembly closer to the indoor heat exchanger and is used to throttle the refrigerant flowing from the heat exchange assembly to the indoor heat exchanger. The second valve assembly is located on the side of the heat exchange assembly closer to the outdoor heat exchanger and is used to throttle the refrigerant flowing from the heat exchange assembly to the outdoor heat exchanger.

2. The refrigeration system according to claim 1, characterized in that, The first valve assembly is a one-way throttle valve; And / or, the second valve assembly is a one-way throttle valve.

3. The refrigeration system according to claim 1, characterized in that, The first valve assembly includes: A first one-way valve and a first throttling element are connected in parallel. The first one-way valve is used to control the refrigerant to flow only from the indoor heat exchanger to the heat exchange assembly.

4. The refrigeration system according to claim 3, characterized in that, The first valve assembly further includes: The first sub-pipeline and the second sub-pipeline are connected in parallel, with the first check valve located on the first sub-pipeline and the first throttling element located on the second sub-pipeline.

5. The refrigeration system according to claim 3, characterized in that, The first check valve includes: A first valve body, the first valve body having a first cavity; A first movable member is movably disposed on the first cavity to divide the first cavity into a first sub-cavity and a second sub-cavity. The first movable member is used to connect or disconnect the first sub-cavity and the second sub-cavity. The two ends of the first throttling member are respectively connected to the first sub-cavity and the second sub-cavity.

6. The refrigeration system according to any one of claims 3-5, characterized in that, The first throttling element is a throttling valve or a capillary tube; and / or, when the first throttling element is a capillary tube, a portion of the capillary tube is wound into a ring.

7. The refrigeration system according to claim 1, characterized in that, The second valve assembly includes: A second one-way valve and a second throttling element are connected in parallel. The second one-way valve is used to control the refrigerant to flow only from the outdoor heat exchanger to the heat exchange assembly.

8. The refrigeration system according to claim 7, characterized in that, The second valve assembly also includes: The third and fourth sub-pipes are connected in parallel, with the second check valve located on the third sub-pipe and the second throttling element located on the fourth sub-pipe.

9. The refrigeration system according to claim 7, characterized in that, The second check valve includes: A second valve body, the second valve body having a second cavity; The second movable member is movably disposed in the second cavity to divide the second cavity into a third sub-cavity and a fourth sub-cavity. The second movable member is used to connect or disconnect the third sub-cavity and the fourth sub-cavity. The two ends of the second throttling member are respectively connected to the third sub-cavity and the fourth sub-cavity.

10. The refrigeration system according to any one of claims 7-9, characterized in that, The second throttling element is a throttling valve or a capillary tube; and / or, when the second throttling element is a capillary tube, a portion of the capillary tube is wound into a ring.

11. The refrigeration system according to claim 1, characterized in that, A first filter element is provided between the first valve assembly and the indoor heat exchanger; And / or, a second filter element is provided between the second valve assembly and the outdoor heat exchanger.

12. An air conditioner, characterized in that, Includes the refrigeration system according to any one of claims 1-11.

13. The air conditioner according to claim 12, characterized in that, The air conditioner includes an outdoor unit, which includes a housing and an electrical control box mounted on the housing. The heat exchange assembly is fixed on the electrical control box, and the first valve assembly and the second valve assembly are located below the electrical control box.

14. The air conditioner according to claim 13, characterized in that, The first valve assembly and the second valve assembly are arranged vertically or at an angle; and / or, The throttling device includes an electronic expansion valve, and the throttling device is installed vertically or at an angle.

15. The air conditioner according to claim 13, characterized in that, The connecting branch includes a first pipe connecting the heat exchange assembly and the first valve assembly, and a second pipe connecting the heat exchange assembly and the second valve assembly. One end of the first valve assembly is supported on the electrical control box via the first pipe, and one end of the second valve assembly is supported on the electrical control box via the second pipe.

16. The air conditioner according to claim 15, characterized in that, The refrigeration system also includes valves, and the outdoor unit also includes a valve plate fixed to the casing. The valves are fixed to the valve plate, and the connecting branch also includes a third pipe connecting the valves and the second valve assembly. The second valve assembly is supported on the valve plate through the third pipe.

17. The air conditioner according to claim 16, characterized in that, The connecting branch also includes a fourth pipe connecting the outdoor heat exchanger and the first valve assembly, the first valve assembly being supported on the outdoor heat exchanger via the fourth pipe.

18. The air conditioner according to claim 17, characterized in that, At least one of the first pipe, the second pipe, the third pipe, and the fourth pipe is provided with a bend.

19. The air conditioner according to claim 14 or 18, characterized in that, The refrigeration system further includes a first tee pipe and a second tee pipe. The first tee pipe includes a first port, a second port, and a third port, with the first port facing downwards and the second and third ports facing upwards. The second tee pipe includes a fourth port, a fifth port, and a sixth port, with the fourth port facing downwards and the fifth and sixth ports facing upwards. The throttling device is disposed above the first tee pipe and the second tee pipe, with its two ends connected to the second port and the fifth port, respectively. The first valve assembly and the second valve assembly are disposed above the first tee pipe and the second tee pipe, with the lower end of the first valve assembly connected to the third port and the lower end of the second valve assembly connected to the sixth port.

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