Air conditioning system

Abstract

The utility model relates to the technical field of air conditioners and discloses an air conditioning system. The air conditioning system comprises an outdoor unit; the indoor unit comprises a floor heater and an indoor unit which are arranged in parallel, and the floor heater and the indoor unit can communicate with the outdoor unit to form a refrigerant circulation loop; the valve box is communicated between the outdoor unit and the indoor unit, the valve box comprises a box body, an air pipe assembly, a liquid pipe assembly and a switching assembly, the air pipe assembly, the liquid pipe assembly and the switching assembly are all located in the box body, the air pipe assembly is connected between an air pipe of the outdoor unit and the floor heater and the indoor unit, and the liquid pipe assembly is connected between a liquid pipe of the outdoor unit and the floor heater and the indoor unit; wherein the switching assembly comprises a valve body, the valve body is arranged on the air pipe assembly, and when the air conditioning system conducts heating, the valve body can be switched to the outdoor unit to communicate with the indoor unit to form a refrigerant circulation loop or switched to the outdoor unit to communicate with the floor heating to form the refrigerant circulation loop. The indoor unit and the floor heater of the air conditioning system can heat independently, so that the use experience of a user is improved.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioning, for example, to an air conditioning system. Background Art

[0002] At present, when the air conditioner is running in heating mode, there are problems such as uneven distribution of spatial temperature field, resulting in the discomfort of "hot head and cold feet", hot air heating, dry air, and skin discomfort. The air conditioner needs to constantly adjust the indoor temperature to adapt to the outdoor temperature changes, resulting in energy waste. Even the best air conditioner cannot be completely silent. When using the air conditioner, you can clearly feel the wind speed, airflow, etc. of the air conditioner.

[0003] The related technology discloses a heating and cooling system, including a heat pump outdoor unit, a reversing box, an air disc and a ground capillary system; the heat pump outdoor unit is connected to the reversing box via a pipeline, and the reversing box is respectively connected to the air disc and the ground capillary system via pipelines; the heat pump outdoor unit sends low-temperature and low-pressure liquid refrigerant into the air disc via the reversing box, and the cold air is sent to the indoor room through evaporation and heat exchange of the air disc, and the evaporated gaseous refrigerant returns to the reversing box and then flows into the heat pump outdoor unit; the heat pump outdoor unit sends high-temperature and high-pressure gaseous refrigerant into the ground capillary system via the reversing box, and the heat is sent to the indoor room through condensation and heat release of the ground capillary system, and the condensed liquid refrigerant returns to the reversing box and then flows into the heat pump outdoor unit.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0005] In the multi-connected air conditioning system in the related art, when heating, the refrigerant can only flow to the floor heating, and only the floor heating can be used for heating, so that the indoor unit cannot heat. This reduces the diversity and flexibility of the air conditioning system and affects the user experience.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0007] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0008] The embodiment of the present disclosure provides an air-conditioning system to increase the heating function of the air-conditioning system and improve the usage diversity and flexibility of the air-conditioning system.

[0009] An embodiment of the present disclosure provides an air-conditioning system, which includes: an outdoor unit; an indoor unit, including a floor heating system and an indoor unit arranged in parallel, both of which can be connected to the outdoor unit to form a refrigerant circulation loop; a valve box connected between the outdoor unit and the indoor unit, the valve box including a box body, an air pipe assembly, a liquid pipe assembly and a switching assembly, the air pipe assembly, the liquid pipe assembly and the switching assembly are all located in the box body, the air pipe assembly is connected between the air pipe of the outdoor unit and the floor heating system and the indoor unit, the liquid pipe assembly is connected between the liquid pipe of the outdoor unit and the floor heating system and the indoor unit; wherein the switching assembly includes a valve body, the valve body is arranged on the air pipe assembly, and when the air-conditioning system is heating, the valve body can be switched to connect the outdoor unit with the indoor unit to form a refrigerant circulation loop or to connect the outdoor unit with the floor heating system to form a refrigerant circulation loop.

[0010] Optionally, the valve box is detachably connected to the outdoor unit, and / or the valve box is detachably connected to the indoor unit.

[0011] Optionally, the air pipe assembly includes: a first air pipe, connected between the air inlet and outlet of the outdoor unit and the air inlet and outlet of the indoor unit; a second air pipe, connected between the air inlet and outlet of the outdoor unit and the air inlet and outlet of the floor heating; the liquid pipe assembly includes: a first liquid pipe, connected between the liquid inlet and outlet of the outdoor unit and the liquid inlet and outlet of the indoor unit; a second liquid pipe, connected between the liquid inlet and outlet of the outdoor unit and the liquid inlet and outlet of the floor heating; wherein, the valve body is arranged on the first air pipe and the second air pipe, for controlling the opening and closing of the first air pipe and the second air pipe.

[0012] Optionally, the valve body includes: a three-way switching valve, the first port of the three-way switching valve is connected to the air inlet and outlet of the outdoor unit, the second port of the three-way switching valve is connected to one end of the first air pipe, and the third port of the three-way switching valve is connected to one end of the second air pipe; or, the valve body also includes: a first valve body, arranged in the first air pipe, for adjusting the on-off of the first air pipe or adjusting the flow rate of the refrigerant in the first air pipe; a second valve body, arranged in the second air pipe, for adjusting the on-off of the second air pipe or adjusting the flow rate of the refrigerant in the second air pipe.

[0013] Optionally, the switching component also includes: a third valve body, provided in the second liquid pipe, the third valve body being configured to be turned on when the refrigerant flows from the floor heating to the outdoor unit, and to be closed when the refrigerant flows from the outdoor unit to the floor heating; or, the switching component also includes: a fourth valve body, provided in the first liquid pipe, for adjusting the on-off of the first liquid pipe and / or adjusting the flow rate of the refrigerant in the first liquid pipe; a fifth valve body, provided in the second liquid pipe, for adjusting the on-off of the second liquid pipe and / or adjusting the flow rate of the refrigerant in the second liquid pipe.

[0014] Optionally, the air-conditioning system also includes: a computer board, which is arranged in the valve box and electrically connected to the switching component, and the computer board is used to control the operation of the switching component; wherein the computer board is configured as follows: when the air-conditioning system operates in the air-conditioning heating mode, the computer board controls the switching component to connect the first air pipe and the outdoor unit, and to connect the first liquid pipe and the outdoor unit, and the gaseous refrigerant of the outdoor unit flows into the indoor unit through the first air pipe, and then flows from the indoor unit into the first liquid pipe, and flows back to the outdoor unit from the first liquid pipe; when the air-conditioning system operates in the floor heating heating mode, the computer board controls the switching component to connect the second air pipe and the outdoor unit, and to connect the second liquid pipe and the outdoor unit, so that the gaseous refrigerant of the outdoor unit flows into the floor heating through the second air pipe, and then flows from the floor heating into the second liquid pipe, and flows back to the outdoor unit from the liquid pipe assembly.

[0015] Optionally, the air pipe assembly further includes: a main air pipe, one end of which is located in the box body and is connected to one end of the first air pipe and one end of the second air pipe, and the other end of which is located outside the box body and can be connected to one end of the air pipe of the outdoor unit, and the other end of the air pipe of the outdoor unit is connected to the air inlet and outlet of the outdoor unit; wherein the other end of the main air pipe is configured with a first joint, and the air pipe of the outdoor unit is configured with a first matching joint adapted to the first joint, and the first joint and the first matching joint are detachably connected; and / or the other end of the first air pipe is located outside the box body, and the first air pipe is configured with a first matching joint adapted to the first joint, and the first matching joint is detachably connected to the first matching joint. A second joint is constructed at the other end of the tube, a second mating joint matched with the second joint is constructed at one end of the air pipe of the indoor unit, the other end of the air pipe of the indoor unit is connected with the air inlet and outlet of the indoor unit, and the second joint and the second mating joint are detachably connected; and / or, the other end of the second air pipe is located outside the box body, a third joint is constructed at the other end of the second air pipe, a third mating joint matched with the third joint is constructed at one end of the air pipe of the floor heating, the other end of the air pipe of the floor heating is connected with the air inlet and outlet of the floor heating, and the third joint and the third mating joint are detachably connected.

[0016] Optionally, the liquid pipe assembly further includes: a main liquid pipe, one end of which is located in the box body and is connected to one end of the first liquid pipe and one end of the second liquid pipe, and the other end of which is located outside the box body and can be connected to one end of the liquid pipe of the outdoor unit, and the other end of the liquid pipe of the outdoor unit is connected to the liquid inlet and outlet of the outdoor unit; wherein the other end of the main liquid pipe is configured with a fourth joint, and the liquid pipe of the outdoor unit is configured with a fourth matching joint adapted to the fourth joint, and the fourth joint and the fourth matching joint are detachably connected; and / or, the other end of the first liquid pipe is located outside the box body, and the first liquid pipe is configured with a fourth matching joint adapted to the fourth joint. The other end of the tube is constructed with a fifth joint, one end of the liquid pipe of the indoor unit is constructed with a fifth mating joint adapted to the fifth joint, the other end of the liquid pipe of the indoor unit is connected with the liquid inlet and outlet of the indoor unit, and the fifth joint and the fifth mating joint are detachably connected; and / or, the other end of the second liquid pipe is located outside the box body, the other end of the second liquid pipe is constructed with a sixth joint, one end of the liquid pipe of the floor heating is constructed with a sixth mating joint adapted to the sixth joint, the other end of the liquid pipe of the floor heating is connected with the liquid inlet and outlet of the floor heating, and the sixth joint and the sixth mating structure are detachably connected.

[0017] Optionally, the air conditioning system further includes: a temperature sensor, located in the box body and arranged in the liquid pipe assembly, for detecting the temperature of the refrigerant in the liquid pipe assembly.

[0018] Optionally, the air conditioning system also includes: a first stop valve, arranged on the gas pipe of the outdoor unit, for controlling the connection between the gas pipe of the outdoor unit and the valve box; a second stop valve, arranged on the liquid pipe of the outdoor unit, for controlling the connection between the liquid pipe of the outdoor unit and the valve box.

[0019] Optionally, the liquid pipe of the outdoor unit includes a fixed liquid pipe and a connecting liquid pipe, one end of the connecting liquid pipe is detachably connected to the fixed liquid pipe, and the other end of the connecting liquid pipe is detachably connected to the valve box; and / or, the air pipe of the outdoor unit includes a fixed air pipe and a connecting air pipe, one end of the connecting air pipe is detachably connected to the fixed air pipe, and the other end of the connecting air pipe is detachably connected to the valve box.

[0020] Optionally, the outdoor unit includes: a throttling device, one end of which is connected to the other end of the liquid pipe of the outdoor unit; an outdoor heat exchanger, one end of which is connected to the other end of the throttling device; a compressor, one end of which is connected to the other end of the outdoor heat exchanger, and the other end of the compressor is connected to the other end of the gas pipe of the outdoor unit.

[0021] Optionally, the air-conditioning system also includes: a four-way valve, a first port of the four-way valve is connected to the other end of the outdoor heat exchanger, a second port of the four-way valve is connected to one end of the compressor, a third port of the four-way valve is connected to the other end of the compressor, and a fourth port of the four-way valve is connected to the other end of the air pipe of the outdoor unit.

[0022] The air conditioning system provided by the embodiment of the present disclosure can achieve the following technical effects:

[0023] In the air - conditioning system according to the embodiments of the present disclosure, the indoor unit of the indoor unit and the floor heating are arranged in parallel. The indoor unit and the floor heating can be selectively connected to the outdoor unit through the switching component of the valve box. In this way, when the air - conditioning system is heating, the user can control the switching device according to the demand, so that the floor heating can heat alone or the air - conditioner can heat alone. Thus, the user can select the heating mode according to the demand. Through the setting of the valve body, the indoor unit and the floor heating of the air - conditioning system can heat alone, which improves the working mode of the air - conditioning system and further improves the user experience. The gas pipe assembly, the liquid pipe assembly and the switching component are all arranged in the valve box. In this way, the valve box can be used as an independent device to connect the outdoor unit and the indoor unit, which improves the assembly convenience of the air - conditioning system and can also realize the retrofit of the air - conditioning system.

[0024] The above general description and the following description are only exemplary and explanatory, and are not used to limit the present application. Brief Description of the Drawings

[0025] One or more embodiments are exemplarily illustrated by the corresponding drawings. These exemplary illustrations and the drawings do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a scale limitation, and among them:

[0026] Figure 1 is a schematic structural diagram of an air - conditioning system provided by an embodiment of the present disclosure when operating in the air - conditioning heating mode;

[0027] Figure 2 is a schematic structural diagram of an air - conditioning system provided by an embodiment of the present disclosure when operating in the floor - heating heating mode;

[0028] Figure 3 is a schematic structural diagram of an air - conditioning system provided by an embodiment of the present disclosure when operating in the refrigeration mode;

[0029] Figure 4 is a schematic structural diagram of a valve box provided by an embodiment of the present disclosure;

[0030] Figure 5 is a schematic structural diagram of another air - conditioning system provided by an embodiment of the present disclosure;

[0031] Figure 6 is a schematic structural diagram of another air - conditioning system provided by an embodiment of the present disclosure;

[0032] Figure 7 is a schematic structural diagram of another air - conditioning system provided by an embodiment of the present disclosure.

[0033] Reference Numerals:

[0034] 10. Outdoor unit; 101. Outdoor heat exchanger; 102. Four-way valve; 103. Compressor; 104. Energy-saving device; 105. Gas pipe of outdoor unit; 106. Liquid pipe of outdoor unit; 200. Indoor unit; 20. Indoor unit; 30. Floor heating; 40. Valve box; 401. Main gas pipe; 402. First gas pipe; 403. Second gas pipe; 404. First liquid pipe; 405. Second liquid pipe; 406. Three-way switching valve; 407. Third valve body; 408. Main liquid pipe; 4091. First valve body; 4092. Second valve body; 4093, fourth valve body; 4094, fifth valve body; 50, temperature sensor; 501, first stop valve; 502, second stop valve; 503, first joint; 504, first matching joint; 505, fourth joint; 506, fourth matching joint; 601, second joint; 602, second matching joint; 603, third joint; 604, third matching joint; 605, fifth joint; 606, fifth matching joint; 607, sixth joint; 608, sixth matching joint; 701, connecting air pipe; 702, connecting liquid pipe. DETAILED DESCRIPTION

[0035] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0036] The terms "first", "second", etc. in the specification and claims of the disclosed embodiments and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate to describe the disclosed embodiments here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0037] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0038] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0039] Unless otherwise stated, the term "plurality" means two or more.

[0040] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0041] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0042] For ease of description, arrows in the drawings indicate the flow direction of the refrigerant.

[0043] Combination Figures 1 to 7As shown, an embodiment of the present disclosure provides an air-conditioning system, which includes an outdoor unit 10 and an indoor unit 200. The indoor unit 200 includes a floor heating 30 and an indoor unit 20 arranged in parallel. Both the floor heating 30 and the indoor unit 20 can be connected to the outdoor unit 10 to form a refrigerant circulation loop. The air-conditioning system also includes a valve box 40, which is connected between the outdoor unit 10 and the indoor unit 200. The valve box 40 includes a box body, an air pipe assembly, a liquid pipe assembly and a switching assembly. The air pipe assembly, the liquid pipe assembly and the switching assembly are all located in the box body. The air pipe assembly is connected between the air pipe 105 of the outdoor unit and the floor heating 30, and between the air pipe of the outdoor unit and the indoor unit 20; the liquid pipe assembly is connected between the liquid pipe of the outdoor unit and the floor heating 30, and between the liquid pipe of the outdoor unit and the indoor unit 20; the switching assembly includes a valve body, which is arranged on the air pipe assembly, and is used for switching the outdoor unit 10 to connect with the indoor unit 20 to form a refrigerant circulation loop or the outdoor unit 10 to connect with the floor heating 30 to form a refrigerant circulation loop when the air-conditioning system is heating.

[0044] In the disclosed embodiment, the outdoor unit 10 and the indoor unit 200 are connected via a valve box 40. A switching device is provided in the valve box 40, and the switching device can switch the outdoor unit 10 to be connected with the indoor unit 20 or with the floor heating 30, so that the outdoor unit 10 and the indoor unit 20 form a refrigerant circulation loop, or the outdoor unit 10 and the floor heating 30 form a circulation loop, so that the user can choose to turn on the floor heating 30 or the indoor unit 20 according to the heating demand to ensure the heating function of the indoor unit 20. When the floor heating 30 has a problem and cannot be used, the indoor unit 20 can be used for heating. Improve the user's flexibility of use.

[0045] In addition, the gas pipe assembly, liquid pipe assembly and switching assembly are all located inside the box body, so that the interior of the valve box forms ports with the outdoor unit and the indoor unit. During the installation, transportation and disassembly of the air-conditioning system, the valve box can be transported as an independent component. After reaching the installation scene, the valve box can be assembled with the indoor unit and the outdoor unit without welding the pipelines. The pipelines can also be connected under non-oxidizing conditions to ensure that there are no impurities in the pipelines, thereby increasing the service life of the air-conditioning system, being simple to operate and having high assembly efficiency.

[0046] Optionally, the indoor unit 20 discharges air toward the upper part of the room, and the floor heating 30 is located at the lower part of the room. Preferably, the indoor unit 20 is arranged at the upper part of the room, the floor heating 30 is located at the lower part of the room, and the floor heating 30 is laid on the floor of the room.

[0047] In this way, when the floor heating 30 is heating, the airflow can move from bottom to top, thereby improving the heating efficiency. When the indoor unit 20 is heating, the temperature of the upper part of the room can be increased, thereby improving the temperature uniformity of the room. The indoor unit 20 is an air conditioner indoor unit, and in this way, when the indoor unit 20 is heating, the cold airflow can move from top to bottom, thereby improving the cooling effect.

[0048] Optionally, the indoor unit 20 is an air-conditioning indoor unit, and the indoor unit 20 includes an indoor heat exchanger, and the indoor heat exchanger is connected to a refrigerant pipeline that can be connected to the outdoor unit 10 through a valve to form a refrigerant circulation loop.

[0049] Optionally, the indoor unit 20 is a wall-mounted air-conditioning indoor unit, a duct unit or a cabinet unit.

[0050] Optionally, the valve box 40 is detachably connected to the outdoor unit 10, and / or the valve box 40 is detachably connected to the indoor unit 200. In the disclosed embodiment, the valve box 40 is detachably connected to the outdoor unit 10 and / or the indoor unit 200, so that when the air-conditioning system is installed, the assembly efficiency can be improved, welding is not required, the installation is convenient, the operation is simple, and the application range of the air-conditioning system is improved. In particular, the air-conditioning system can be installed in small-sized households, thereby improving the installation popularity of the air-conditioning system.

[0051] Optionally, the valve box 40 is located indoors, or the valve box 40 is located outdoors.

[0052] In the disclosed embodiment, the valve box 40 is a component connecting the outdoor unit 10 and the indoor unit 200, and can be independently arranged indoors or outdoors. During installation, the installation position of the valve box 40 can be selected according to the conditions of the installation site.

[0053] Preferably, the valve box 40 is located indoors, which not only facilitates the installation of the valve box 40, but also facilitates the connection and assembly of the valve box 40 with the outdoor unit 10 and the indoor unit 200, thereby ensuring the safety of assembly and improving assembly efficiency.

[0054] Optionally, the valve box 40 may be in a cubic, circular or irregular shape, and the shape of the valve box 40 may be set according to usage requirements and pipeline layout during use.

[0055] Alternatively, if Figure 4 As shown, the air pipe assembly includes a first air pipe 402 and a second air pipe 403, the first air pipe 402 is connected between the air inlet and outlet of the outdoor unit 10 and the air inlet and outlet of the indoor unit 20; the second air pipe 403 is connected between the air inlet and outlet of the outdoor unit 10 and the air inlet and outlet of the floor heating 30; wherein, the valve body is arranged on the first air pipe 402 and the second air pipe 403, and is used to control the opening and closing of the first air pipe 402 or the second air pipe 403.

[0056] In the embodiment of the present disclosure, the first air pipe 402 and the second air pipe 403 are both located in the box body of the valve box 40, and the first air pipe 402 is used to connect the air inlet and outlet of the outdoor unit and the air inlet and outlet of the indoor unit 20, and the second air pipe 403 is used to connect the air inlet and outlet of the outdoor unit and the air inlet and outlet of the floor heating 30. The valve body is provided on the first air pipe 402 and the second air pipe 403, so that the valve body can control the connection of the first air pipe 402 and the connection of the second air pipe 403, so that one of the first air pipe 402 and the second air pipe 403 is opened.

[0057] In a specific embodiment, Figures 1 to 4 As shown, the valve body includes a three-way switching valve 406, a first port of the three-way switching valve 406 is connected to the air inlet and outlet of the outdoor unit 10, a second port of the three-way switching valve 406 is connected to one end of the first air pipe 402, and a third port of the three-way switching valve 406 is connected to one end of the second air pipe 403.

[0058] In the disclosed embodiment, the valve body is a three-way switching valve 406, which is mainly used for switching the flow direction of the refrigerant in the valve box 40. The three-way switching valve 406 can switch the air inlet and outlet of the outdoor unit 10 to be connected to the first air pipe 402 or to be connected to the second air pipe 403. The three-way switching valve 406 has the advantages of good sealing effect, high control accuracy and fast switching speed. In the disclosed embodiment, the three-way switching valve 406 is located in the box body of the valve box 40, which can prevent the three-way switching valve 406 from being exposed and damaged. Therefore, by adopting the three-way switching valve 406, the first air pipe 402 and the second air pipe 403, and integrating these components in the box body of the valve box 40, it is possible to improve the sealing of the connection between the air pipes, improve the switching accuracy and speed, and protect the three-way switching valve 406 to prevent the three-way switching valve 406 from being damaged.

[0059] In another specific embodiment, Figure 5 As shown, the valve body also includes a first valve body 4091 and a second valve body 4092. The first valve body 4091 is arranged on the first air pipe 402 to control the on-off of the first air pipe 402 or the flow of the first air pipe 302; the second valve body 4092 is arranged on the second air pipe 403 to control the on-off of the second air pipe 403 or the flow of the second air pipe 403.

[0060] In the embodiment of the present disclosure, the number of valve bodies can also be at least two, and the first air pipe 402 and the second air pipe 403 are respectively provided with valve bodies, which can independently control the communication between the first air pipe 402 and the second air pipe 403. At the same time, the two air pipes are respectively provided with valve bodies, and air conditioning heating and floor heating can also be achieved simultaneously.

[0061] Optionally, the first valve body 4091 and the second valve body 4092 are solenoid valves, so that the first air pipe 402 and the second air pipe 403 can be opened and closed.

[0062] Optionally, the first valve body 4091 and the second valve body 4092 are electronic expansion valves, which can not only open and close by adjusting the flow of refrigerant, but also adjust the flow in the first air pipe 402 and the second air pipe 403 to improve the control flexibility of the air-conditioning system and increase the diversity of use.

[0063] Optionally, the air pipe assembly also includes a main air pipe 401, one end of which is located inside the box body and is connected to one end of the first air pipe 402 and one end of the second air pipe 403, and the other end of the main air pipe 401 is located outside the box body and can be connected to one end of the air pipe 105 of the outdoor unit, and the other end of the air pipe 105 of the outdoor unit is connected to the air inlet and outlet of the outdoor unit; wherein, the other end of the main air pipe 401 is constructed with a first joint 503, and the air pipe 105 of the outdoor unit is constructed with a first mating joint 504 that is compatible with the first joint 503, and the first joint 503 and the first mating joint 504 are detachably connected.

[0064] In the embodiment of the present disclosure, one end of the main air pipe 401 forms a three-way structure with the first air pipe 402 and the second air pipe 403, so that the refrigerant of the outdoor unit 10 can be diverted from the main air pipe 401 to the first air pipe 402 or the second air pipe 403, and similarly, the refrigerant in the first air pipe 402 or the second air pipe 403 can also flow into the outdoor unit 10 through the main air pipe 401. One end of the main air pipe 401 is located in the box body so as to communicate with the first air pipe 402 and the second air pipe 403. The other end of the main air pipe 401 extends to the outside of the box body, and the other end of the main air pipe 401 is configured with a first joint 503, and the air pipe 105 of the outdoor unit is configured with a first matching joint 504, so that the main air pipe 401 is convenient for connection and disassembly with the outdoor unit 10, thereby realizing the installation and disassembly of the valve box 40 and the outdoor unit 10.

[0065] Optionally, one of the first connector 503 and the first mating connector 504 is a male connector, and the other of the first connector 503 and the first mating connector 504 is a female connector.

[0066] Optionally, the other end of the first air pipe 402 is located outside the box body, and the other end of the first air pipe 402 is constructed with a second joint 601. One end of the air pipe of the indoor unit 20 is constructed with a second mating joint 602 that is compatible with the second joint 601. The other end of the air pipe of the indoor unit 20 is connected to the air inlet and outlet of the indoor unit 20, and the second joint 601 and the second mating joint 602 are detachably connected.

[0067] In the embodiment of the present disclosure, one end of the first air pipe 402 is located inside the box body to facilitate the communication between the first air pipe 402 and the main air pipe 401, and the other end of the first air pipe 402 can extend out of the box body. One end of the first air pipe 402 is constructed with a second connector 601, and the air pipe of the indoor unit 20 is constructed with a second mating connector 602 that is compatible with the second connector 601. The second connector 601 and the second mating connector 602 are detachably connected to facilitate the detachable connection between the valve box 40 and the indoor unit 20.

[0068] Optionally, one of the second connector 601 and the second mating connector 602 is a male connector, and the other of the second connector 601 and the second mating connector 602 is a female connector.

[0069] Optionally, the other end of the second air pipe 403 is located outside the box body, and the other end of the second air pipe 403 is constructed with a third joint 603. One end of the air pipe of the floor heating 30 is constructed with a third mating joint 604 that matches the third joint 603. The other end of the air pipe of the floor heating 30 is connected to the air inlet and outlet of the floor heating 30, and the third joint 603 and the third mating joint 604 are detachably connected.

[0070] In the disclosed embodiment, one end of the second air pipe 403 is located inside the box body, and the other end of the second air pipe 403 extends outside the box body, so that the second air pipe 403 is connected to the air pipe of the floor heating 30. The second air pipe 403 is configured with a third joint 603, and the air pipe of the floor heating 30 is configured with a third matching joint 604 adapted to the third joint 603. The third joint 603 and the third matching joint 604 are detachably connected, thereby facilitating the detachable connection between the valve box 40 and the floor heating 30.

[0071] Optionally, one of the third connector 603 and the third mating connector 604 is a male connector, and the other of the third connector 603 and the third mating connector 604 is a female connector.

[0072] Optionally, when the valve body is a three-way switching valve 406, the first port of the three-way switching valve 406 is connected to one end of the main air pipe 401, the second port of the three-way switching valve 406 is connected to one end of the first air pipe 402, and the third port of the three-way switching valve 406 is connected to one end of the second air pipe 403. This facilitates the installation of the three-way switching valve 406 and also facilitates the three-way switching valve 406 to be located in the box body.

[0073] Optionally, the liquid pipe assembly includes a first liquid pipe 404 and a second liquid pipe 405, the first liquid pipe 404 is connected between the liquid inlet and outlet of the outdoor unit 10 and the liquid inlet and outlet of the indoor unit 20; the second liquid pipe 405 is connected between the liquid inlet and outlet of the outdoor unit 10 and the liquid inlet and outlet of the floor heating 30.

[0074] In the disclosed embodiment, the first liquid pipe 404 is used to connect the outdoor unit 10 and the indoor unit 20, and the second liquid pipe 405 is used to connect the outdoor unit 10 and the floor heating 30. In this way, through the first liquid pipe 404, the second liquid pipe 405, the first gas pipe 402 and the second gas pipe 403, the outdoor unit 10 can form a refrigerant circulation loop with the indoor unit 20 or the floor heating 30 to ensure the operation of the indoor unit 20 or the floor heating 30.

[0075] Optionally, the outdoor unit 10 further comprises a throttling device, which is arranged on the liquid pipe 106 of the outdoor unit. In other words, the throttling device is arranged outside the valve box.

[0076] In a specific embodiment, the valve body includes a three-way switching valve, which is connected to the first gas pipe and the second gas pipe, and the first liquid pipe 404 and the second liquid pipe 405 are both normally connected to the outdoor unit and the indoor unit.

[0077] In another specific embodiment, the valve body includes a first valve body and a second valve body, the first valve body is arranged in the first gas pipe, the second valve body is arranged in the second gas pipe, and the first liquid pipe 404 and the second liquid pipe 405 are both connected to the outdoor unit and the indoor unit.

[0078] In this way, Figure 2 As shown, when the air conditioning system operates in the floor heating mode, the air inlet and outlet of the outdoor unit 10 communicates with the air inlet and outlet of the floor heating 30 through the regulating valve body, and the liquid inlet and outlet of the floor heating 30 communicates with the liquid inlet and outlet of the outdoor unit 10 through the second liquid pipe 405, so that the floor heating 30 and the outdoor unit 10 form a refrigerant circulation loop. Specifically, the high-temperature and high-pressure gaseous refrigerant flowing out of the compressor 103 flows into the floor heating 30 through the second air pipe 403, and heats the room after the floor heating 30 exchanges heat with the environment. The other refrigerant condenses into liquid refrigerant in the floor heating 30, and then flows into the second liquid pipe 405 from the liquid inlet and outlet of the floor heating 30, and then flows back to the outdoor unit 10 from the second liquid pipe 405, and after being throttled by the throttling device of the outdoor unit 10, it flows into the outdoor heat exchanger 101, and after evaporation and heat exchange in the outdoor heat exchanger 101, it flows into the compressor 103 to perform the next cycle.

[0079] like Figure 1As shown, when the air conditioning system operates in the air conditioning heating mode, the air inlet and outlet of the outdoor unit 10 communicates with the air inlet and outlet of the indoor unit 20 through the valve body, and the liquid inlet and outlet of the heat exchanger of the indoor unit 20 communicates with the liquid inlet and outlet of the outdoor unit 10 through the first liquid pipe 404, so that the indoor unit 20 and the outdoor unit 10 form a refrigerant circulation loop. Specifically, the high-temperature and high-pressure gaseous refrigerant flowing out of the compressor 103 flows into the floor heating 30 through the first air pipe 402, exchanges heat with the airflow in the indoor unit 20, and heats the room. The other refrigerant condenses into liquid refrigerant in the indoor unit 20, and then flows into the first liquid pipe 404 from the liquid inlet and outlet of the indoor unit 20, and then flows back to the outdoor unit 10 from the first liquid pipe 404, and after being throttled by the throttling device of the outdoor unit 10, it flows into the outdoor heat exchanger 101, and after evaporation and heat exchange in the outdoor heat exchanger 101, it flows into the compressor 103 to perform the next cycle.

[0080] In some optional embodiments, the switching assembly further includes a third valve body 407, which is disposed on the second liquid pipe 405, and is configured to be turned on when the refrigerant flows from the floor heating 30 to the outdoor unit 10, and to be turned off when the refrigerant flows from the outdoor unit 10 to the floor heating 30. Figure 3 As shown, the computer board is configured as follows: when the air-conditioning system operates in cooling mode, the computer board controls the valve body to connect the first air pipe 402 and the outdoor unit 10, and disconnects the second air pipe 403 from the outdoor unit 10, so that the liquid refrigerant flows into the indoor unit 20 through the first liquid pipe 404 for cooling, flows from the indoor unit 20 into the first air pipe 402, and then flows back to the outdoor unit 10 from the first air pipe 402.

[0081] In the disclosed embodiment, the second liquid pipe 405 is provided with a third valve body 407, that is, a third valve body 407 is provided between the liquid inlet and outlet of the floor heating 30 and the liquid inlet and outlet of the outdoor unit 10, and the third valve body 407 is configured to be unidirectionally conductive. In this way, when the air conditioning system operates in the cooling mode, the refrigerant flows into the main liquid pipe 408 after being throttled by the throttling device of the outdoor unit 10. Due to the setting of the third valve body 407 of the second liquid pipe 405, the refrigerant can only flow from the first liquid pipe 404 into the indoor unit 20 for cooling, and then the valve body is controlled to connect the first gas pipe 402 and the outdoor unit 10, so that the refrigerant after cooling the indoor unit 20 flows back to the compressor 103 of the outdoor unit 10 through the first gas pipe 402 for circulation. Here, the setting of the third valve body 407 can prevent the refrigerant from accumulating in the floor when the air conditioning system operates in the cooling mode, thereby preventing condensation on the floor. In addition, the third valve body 407 allows the refrigerant to flow from the floor heating 30 to the outdoor unit 10. In this way, when the indoor unit 20 is heating alone, the refrigerant in the first liquid pipe 404 will not flow back into the floor heating 30 through the second liquid pipe 405, thereby avoiding refrigerant diversion and gradual accumulation in the capillary tube of the floor heating 30, resulting in a lack of refrigerant when the indoor unit 20 is heating.

[0082] Optionally, the third valve body 407 is a one-way valve or a solenoid valve.

[0083] In a specific embodiment, the valve body includes a three-way switching valve 406, which is connected to the first gas pipe 402 and the second gas pipe 403. The first liquid pipe 404 is provided with a third valve body 407407, and the second liquid pipe 405 is always connected to the outdoor unit 10 and the indoor unit 200.

[0084] In another specific embodiment, the valve body includes a first valve body 4091 and a second valve body 4092, the first valve body 4091 is arranged on the first air pipe 402, the second valve body 4092 is arranged on the second air pipe 403, the first liquid pipe 404 is provided with a third valve body 407407, and the second liquid pipe 405 is always connected with the outdoor unit 10 and the indoor unit 200.

[0085] In some other optional embodiments, Figure 6 and Figure 7 As shown, the switching assembly also includes a fourth valve body 4093 and a fifth valve body 4094. The fourth valve body 4093 is arranged on the first liquid pipe 404, and is used to adjust the on-off of the first liquid pipe 404 and / or adjust the flow rate of the refrigerant in the first liquid pipe 404; the fifth valve body 4094 is arranged on the second liquid pipe 405, and is used to adjust the on-off of the second liquid pipe 405 and / or adjust the flow rate of the refrigerant in the second liquid pipe 405.

[0086] In the embodiment of the present disclosure, valves may also be provided on both the first liquid pipe 404 and the second liquid pipe 405, so that the refrigerant flow of each liquid pipe can be more flexibly controlled during cooling and heating, thereby improving the control of the air conditioner and the floor heating 30. When the air conditioning system operates in the air conditioning heating mode, the valve body controls the first gas pipe 402 to be connected with the indoor unit 20 and the outdoor unit 10, and the fourth valve body 4093 controls the connection of the first liquid pipe 404 with the indoor unit 20 and the outdoor unit 10 to achieve the circulation of the refrigerant. When the air conditioning system operates in the floor heating 30 heating mode, the valve body controls the second gas pipe 403 to be connected with the indoor unit 20 and the outdoor unit 10, and the fifth valve body 4094 controls the connection of the second liquid pipe 405 with the indoor unit 20 and the outdoor unit 10 to facilitate the circulation of the refrigerant.

[0087] Optionally, when the air conditioning system operates in the air conditioning heating mode, the fourth valve body 4093 is opened and the fifth valve body 4094 is closed. This can prevent the refrigerant from flowing into the floor heating 30 through the second liquid pipe 405 to ensure the refrigerant amount of the indoor unit 20.

[0088] Optionally, when the air conditioning system operates in the heating mode of the floor heating 30, the fifth valve body 4094 is opened and the fourth valve body 4093 is closed. This can prevent the refrigerant from flowing into the air conditioner through the first liquid pipe 404 to ensure the refrigerant amount of the floor heating 30.

[0089] Optionally, when the air-conditioning system operates in cooling mode, the fifth valve body 4094 is closed, which can prevent the refrigerant from flowing into the floor heating 30 and prevent the refrigerant from accumulating in the floor heating 30.

[0090] Optionally, when the air-conditioning system is not in operation, both the fourth valve body 4093 and the fifth valve body 4094 may be closed to prevent the refrigerant from accumulating in the indoor unit 20 and the floor heating 30 .

[0091] Optionally, the fourth valve body 4093 can be a solenoid valve, an electronic expansion valve or a flow control valve. The solenoid valve can control the opening and closing of the first liquid pipe 404, the electronic expansion valve can control the flow and closing of the first liquid pipe 404, and the flow control valve can control the flow of the first liquid pipe 404.

[0092] Optionally, the fifth valve body 4094 can be a solenoid valve, an electronic expansion valve or a flow control valve. The solenoid valve can control the opening and closing of the second liquid pipe 405, the electronic expansion valve can control the flow and closing of the second liquid pipe 405, and the flow control valve can control the flow of the second liquid pipe 405.

[0093] In a specific embodiment, the first gas pipe 402 is provided with a first valve body 4091, the second gas pipe 403 is provided with a second valve body 4092, the first liquid pipe 404 is provided with a fourth valve body 4093, and the second liquid pipe 405 is provided with a fifth valve body 4094. In this way, when the air conditioning heating mode is operated, the first valve body 4091 and the fourth valve body 4093 are opened, and the second valve body 4092 and the fifth valve body 4094 are closed. When the floor heating 30 heating mode is operated, the second valve body 4092 and the fifth valve body 4094 are opened, and the first valve body 4091 and the fourth valve body 4093 are closed. When the cooling mode is operated, the first valve body 4091 and the fourth valve body 4093 are opened, and the second valve body 4092 and the fifth valve body 4094 are closed. In addition, the air conditioning system can also operate the floor heating 30 heating and the air conditioning heating at the same time, and control the first valve body 4091, the second valve body 4092, the fourth valve body 4093 and the fifth valve body 4094 to be opened.

[0094] In another specific embodiment, the first gas pipe 402 and the second gas pipe 403 are provided with a three-way switching valve 406, the first liquid pipe 404 is provided with a fourth valve body 4093, and the second liquid pipe 405 is provided with a fifth valve body 4094. The opening and closing methods are the same as above and will not be repeated here.

[0095] Optionally, the air-conditioning system also includes a computer board, which is arranged in the valve box 40 and electrically connected to the switching component, and the computer board is used to control the operation of the switching component; wherein the computer board is configured as follows: when the air-conditioning system operates in the air-conditioning heating mode, the computer board controls the switching component to connect the first air pipe 402 and the outdoor unit 10, and the gaseous refrigerant of the outdoor unit 10 flows into the indoor unit 20 through the first air pipe 402, and then flows from the indoor unit 20 into the first liquid pipe 404, and flows back to the outdoor unit 10 from the first liquid pipe 404; when the air-conditioning system operates in the floor heating heating mode, the computer board controls the switching component to connect the second air pipe 403 and the outdoor unit 10, so that the gaseous refrigerant of the outdoor unit 10 flows into the floor heating 30 through the second air pipe 403, and then flows from the floor heating 30 into the second liquid pipe 405, and flows back to the outdoor unit 10 from the second liquid pipe 405.

[0096] In the disclosed embodiment, the operation of the switching assembly is controlled by the computer board, so that the air conditioning system can automatically switch between floor heating 30 heating or air conditioning heating. The computer board is also arranged in the box body of the valve box 40, which is also convenient for maintenance of the computer board. In other words, the valve body and the controlled computer board are all centrally arranged in the box body of the valve box 40, which is not only convenient for assembly, but also convenient for later maintenance and replacement.

[0097] Optionally, the liquid pipe assembly also includes a main liquid pipe 408, one end of which is located in the box body and is connected to one end of the first liquid pipe 404 and one end of the second liquid pipe 405, and the other end of the main liquid pipe 408 is located outside the box body and can be connected to one end of the liquid pipe 106 of the outdoor unit, and the other end of the liquid pipe 106 of the outdoor unit is connected to the liquid inlet and outlet of the outdoor unit 10; wherein, the other end of the main liquid pipe 408 is constructed with a fourth joint 505, and the liquid pipe 106 of the outdoor unit is constructed with a fourth mating joint 506 that is compatible with the first joint 503, and the fourth joint 505 and the fourth mating joint 506 are detachably connected.

[0098] In the disclosed embodiment, one end of the main liquid pipe 408 is connected with one end of the first liquid pipe 404 and one end of the second liquid pipe 405 to form a three-way structure. This facilitates the refrigerant of the first liquid pipe 404 and the second liquid pipe 405 to flow into the outdoor unit 10 after merging through the main liquid pipe 408. At the same time, the refrigerant of the outdoor unit 10 can also be diverted to the first liquid pipe 404 and the second liquid pipe 405 through the main liquid pipe 408. The other end of the main liquid pipe 408 is configured with a fourth joint 505, and the liquid pipe 106 of the outdoor unit is configured with a fourth matching joint 506 adapted to the first joint 503, and the fourth joint 505 is detachably connected to the fourth matching joint 506, so that the main liquid pipe 408 of the valve box 40 can be detachably connected to the outdoor unit 10, and the valve box 40 can be detachably connected to the outdoor unit 10 through the main liquid pipe 408 and the main gas pipe 401.

[0099] Optionally, one of the fourth connector 505 and the fourth mating connector 506 is a male connector, and the other of the fourth connector 505 and the fourth mating connector 506 is a female connector.

[0100] Optionally, the other end of the first liquid pipe 404 is located outside the box body, and the other end of the first liquid pipe 404 is constructed with a fifth joint 605, and one end of the liquid pipe of the indoor unit 20 is constructed with a fifth mating joint 606 that is adapted to the fifth joint 605, and the other end of the liquid pipe of the indoor unit 20 is connected to the liquid inlet and outlet of the indoor unit 20, and the fifth joint 605 and the fifth mating joint 606 are detachably connected.

[0101] In the disclosed embodiment, one end of the first liquid pipe 404 is located inside the box body and is connected to the main liquid pipe 408, and the other end of the first liquid pipe 404 is arranged outside the box body, so that the fifth joint 605 at the other end of the first liquid pipe 404 can be detachably connected with the fifth mating joint 606 of the indoor unit 20, so that the valve box 40 and the indoor unit 20 are detachably connected through the joints of the first liquid pipe 404 and the first air pipe 402 and the corresponding mating joints.

[0102] Optionally, one of the fifth connector 605 and the fifth mating connector 606 is a male connector, and the other of the fifth connector 605 and the fifth mating connector 606 is a female connector.

[0103] Optionally, the other end of the second liquid pipe 405 is located outside the box body, and the other end of the second liquid pipe 405 is constructed with a sixth joint 607. One end of the liquid pipe of the floor heating 30 is constructed with a sixth mating joint 608 that is compatible with the sixth joint 607. The other end of the liquid pipe of the floor heating 30 is connected to the liquid inlet and outlet of the floor heating 30, and the sixth joint 607 is detachably connected to the sixth mating structure.

[0104] In the disclosed embodiment, one end of the second liquid pipe 405 is located inside the box body to facilitate communication with the main liquid pipe 408, and the other end of the second liquid pipe 405 is located outside the box body to facilitate detachable connection of the sixth joint 607 at the other end of the second liquid pipe 405 with the sixth matching structure of the floor heating 30, so that the valve box 40 and the floor heating 30 are detachably connected through the joint of the second air pipe 403 and the second liquid pipe 405 and their corresponding matching joints.

[0105] Optionally, one of the sixth connector 607 and the sixth mating connector 608 is a male connector, and the other of the sixth connector 607 and the sixth mating connector 608 is a female connector.

[0106] Alternatively, if Figure 4 As shown, the air conditioning system further includes a temperature sensor 50, which is located in the box body and is used to detect the temperature of the refrigerant in the liquid pipe assembly.

[0107] In the disclosed embodiment, the air conditioning system further includes a temperature sensor 50, which is also integrated in the box body, so as to detect the temperature of the refrigerant in the liquid pipe assembly, thereby facilitating the adjustment of the operation of the air conditioning system. The temperature sensor 50 is integrated in the box body, which is also convenient for the installation, maintenance and replacement of the temperature sensor 50, thereby improving the efficiency and convenience of maintenance and assembly.

[0108] Optionally, the temperature sensor 50 is disposed in the main liquid pipe 408 to detect the temperature of the refrigerant in the main liquid pipe 408 for detection.

[0109] Optionally, the temperature sensor 50 is connected to a computer board, and the computer board can control the operation of the valve body according to the temperature detected by the temperature sensor 50 .

[0110] Optionally, the air conditioning system also includes a first stop valve 501 and a second stop valve 502. The first stop valve 501 is arranged on the gas pipe 105 of the outdoor unit, and is used to control the connection and disconnection between the gas pipe 105 of the outdoor unit and the valve box 40; the second stop valve 502 is arranged on the liquid pipe 106 of the outdoor unit, and is used to control the connection and disconnection between the liquid pipe 106 of the outdoor unit and the valve box 40.

[0111] In the disclosed embodiment, the first stop valve 501 can disconnect the gas pipe 105 of the outdoor unit, so that the gas pipe 105 of the outdoor unit is disconnected or connected with the valve box 40. Similarly, the second stop valve 502 can connect or disconnect the outdoor unit 10 with the valve box 40. The provision of the first stop valve 501 and the second stop valve 502 allows the gas pipe 105 and the liquid pipe of the outdoor unit to be closed, so that when the outdoor unit 10 and the valve box 40 are installed, transported or connected, the refrigerant in the outdoor unit 10 is prevented from leaking.

[0112] Optionally, the liquid pipe 106 of the outdoor unit includes a fixed liquid pipe and a connecting liquid pipe 702, one end of the connecting liquid pipe 702 is detachably connected to the fixed liquid pipe, and the other end of the connecting liquid pipe 702 is detachably connected to the valve box 40 to adjust the length of the outdoor unit liquid pipe. In this way, the connecting liquid pipe 702 can adjust the length of the liquid pipe 106 of the outdoor unit according to demand, so as to facilitate the connection between the outdoor unit 10 and the valve box 40.

[0113] Optionally, when the liquid pipe 106 of the outdoor unit includes a connecting liquid pipe 702, the connecting liquid pipe 702 is provided with a fourth matching joint 506. When the liquid pipe 106 of the outdoor unit only includes a fixed liquid pipe, the fixed liquid pipe is provided with a fourth matching joint 506.

[0114] Optionally, the connecting liquid pipe 702 and the fixed liquid pipe are also detachably connected via a male and female connector.

[0115] Optionally, the air pipe 105 of the outdoor unit includes a fixed air pipe and a connecting air pipe 701, one end of the connecting air pipe 701 is detachably connected to the fixed air pipe, and the other end of the connecting air pipe 701 is detachably connected to the valve box 40 to adjust the length of the outdoor unit air pipe. In this way, the connecting air pipe 701 can adjust the length of the air pipe 105 of the outdoor unit according to demand, so as to facilitate the connection between the outdoor unit 10 and the valve box 40.

[0116] Optionally, when the air pipe 105 of the outdoor unit includes a connecting air pipe 701, the connecting air pipe 701 is provided with a first matching joint 504. When the air pipe 105 of the outdoor unit only includes a fixed air pipe, the fixed air pipe is provided with a first matching joint 504.

[0117] Optionally, the connecting air pipe 701 and the fixed air pipe are also detachably connected via a male and female connector.

[0118] Optionally, when the outdoor unit 10 includes a throttling device, an outdoor heat exchanger 101 and a compressor 103, one end of the throttling device is connected to the other end of the outdoor unit liquid pipe; one end of the outdoor heat exchanger 101 is connected to the other end of the throttling device; one end of the compressor 103 is connected to the other end of the outdoor heat exchanger 101, and the other end of the compressor 103 is connected to the other end of the gas pipe 105 of the outdoor unit.

[0119] In the disclosed embodiment, when the air-conditioning system is heating, the high-temperature and high-pressure refrigerant flowing out of the compressor 103 flows into the air pipe 105 of the outdoor unit through the air inlet and outlet of the outdoor unit 10, and then flows into the main air pipe 401 from the air pipe of the outdoor unit, and then selectively flows into the first air pipe 402 or the second air pipe 403 from the main air pipe 401, and then selectively flows into the indoor unit 20 or the floor heating 30. The refrigerant after heat dissipation in the indoor unit 20 or the floor heating 30 flows through the first liquid pipe 404 or the second liquid pipe 405 to the main liquid pipe 408, and then flows out of the box body of the valve box 40 from the main liquid pipe 408, and then flows to the throttling device of the outdoor unit 10. After throttling by the throttling device, it flows into the outdoor heat exchanger 101 for heat absorption and evaporation, and then flows into the compressor 103 for the next cycle.

[0120] Optionally, the air-conditioning system also includes a four-way valve 102, a first port of the four-way valve 102 is connected to the other end of the outdoor heat exchanger 101, a second port of the four-way valve 102 is connected to one end of the compressor 103, a third port of the four-way valve 102 is connected to the other end of the compressor 103, and a fourth port of the four-way valve 102 is connected to the other end of the air pipe 105 of the outdoor unit.

[0121] In the disclosed embodiment, the setting of the four-way valve 102 can change the flow direction of the refrigerant in the air-conditioning system. When the air-conditioning system operates in the cooling mode, the high-temperature and high-pressure refrigerant flowing out of the compressor 103 first flows into the outdoor heat exchanger 101 to condense and dissipate heat, and then flows into the liquid pipe 106 of the outdoor unit through the throttling device, and then flows into the indoor unit 20 through the main liquid pipe 408 and the first liquid pipe 404 of the valve box 40. After absorbing heat and evaporating in the heat exchanger of the indoor unit 20, it flows into the first air pipe 402 through the air inlet and outlet of the indoor unit 20, and then flows out of the valve box 40 from the first air pipe 402 and the main air pipe 401, and then flows into the compressor 103 of the outdoor unit 10 for the next cycle.

[0122] Optionally, the energy-saving device 104 is an electronic expansion valve.

[0123] Optionally, the floor heating 30 is arranged in a spiral shape.

[0124] Optionally, the outdoor unit 10 further includes a liquid storage tank, which is communicated with the compressor, that is, the liquid storage tank is arranged outside the valve box.

[0125] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. An air conditioning system, characterized in that: include: Outdoor unit; The indoor unit includes a floor heating system and an indoor unit connected in parallel, and both the floor heating system and the indoor unit can be connected to the outdoor unit to form a refrigerant circulation loop; The valve box is connected between the outdoor unit and the indoor unit. The valve box includes a box body, an air pipe assembly, a liquid pipe assembly and a switching assembly. The air pipe assembly, the liquid pipe assembly and the switching assembly are all located in the box body. The air pipe assembly is connected between the air pipe of the outdoor unit and the floor heating and the indoor unit. The liquid pipe assembly is connected between the liquid pipe of the outdoor unit and the floor heating and the indoor unit. Among them, the switching component includes a valve body, which is arranged in the air pipe component. When the air-conditioning system is heating, the valve body can switch to connect the outdoor unit with the indoor unit to form a refrigerant circulation loop or switch to connect the outdoor unit with the floor heating to form a refrigerant circulation loop.

2. The air conditioning system according to claim 1, characterized in that: The valve box is detachably connected to the outdoor unit, and / or the valve box is detachably connected to the indoor unit.

3. The air conditioning system according to claim 1, characterized in that: The air tube assembly includes: A first air pipe is connected between the air inlet and outlet of the outdoor unit and the air inlet and outlet of the indoor unit; The second air pipe is connected between the air inlet and outlet of the outdoor unit and the air inlet and outlet of the floor heating; The liquid pipe assembly includes: A first liquid pipe is connected between the liquid inlet and outlet of the outdoor unit and the liquid inlet and outlet of the indoor unit; A second liquid pipe is connected between the liquid inlet and outlet of the outdoor unit and the liquid inlet and outlet of the floor heating; The valve body is arranged on the first air pipe and the second air pipe, and is used to control the opening and closing of the first air pipe and the second air pipe.

4. The air conditioning system according to claim 3, characterized in that: The valve body includes: A three-way switching valve, wherein a first port of the three-way switching valve is connected to the air inlet and outlet of the outdoor unit, a second port of the three-way switching valve is connected to one end of the first air pipe, and a third port of the three-way switching valve is connected to one end of the second air pipe; or The valve body also includes: A first valve body is provided in the first gas pipe and is used to adjust the opening and closing of the first gas pipe or the flow rate of the refrigerant in the first gas pipe; The second valve body is arranged on the second gas pipe and is used for adjusting the on-off of the second gas pipe or adjusting the flow rate of the refrigerant in the second gas pipe.

5. The air conditioning system according to claim 4, characterized in that: The switching component also includes: A third valve body is provided on the second liquid pipe, and the third valve body is configured to be open when the refrigerant flows from the floor heating to the outdoor unit, and closed when the refrigerant flows from the outdoor unit to the floor heating; or, The switching component also includes: A fourth valve body is provided on the first liquid pipe, and is used to adjust the on-off of the first liquid pipe and / or adjust the flow rate of the refrigerant in the first liquid pipe; The fifth valve body is arranged on the second liquid pipe, and is used for adjusting the on-off of the second liquid pipe and / or adjusting the flow rate of the refrigerant in the second liquid pipe.

6. The air conditioning system according to claim 5, characterized in that: Also includes: A computer board is arranged in the valve box and is electrically connected to the switching component. The computer board is used to control the operation of the switching component. Among them, the computer board is configured as follows: when the air-conditioning system operates in the air-conditioning heating mode, the computer board controls the switching component to connect the first air pipe and the outdoor unit, and to connect the first liquid pipe and the outdoor unit, and the gaseous refrigerant of the outdoor unit flows into the indoor unit through the first air pipe, and then flows from the indoor unit into the first liquid pipe, and flows back to the outdoor unit from the first liquid pipe; when the air-conditioning system operates in the floor heating heating mode, the computer board controls the switching component to connect the second air pipe and the outdoor unit, and to connect the second liquid pipe and the outdoor unit, so that the gaseous refrigerant of the outdoor unit flows into the floor heating through the second air pipe, and then flows from the floor heating into the second liquid pipe, and flows back to the outdoor unit from the liquid pipe component.

7. The air conditioning system according to claim 3, characterized in that: The trachea kit also includes: The main air pipe has one end located in the box body and connected to one end of the first air pipe and one end of the second air pipe, and the other end located outside the box body and can be connected to one end of the air pipe of the outdoor unit, and the other end of the air pipe of the outdoor unit is connected to the air inlet and outlet of the outdoor unit; Wherein, the other end of the main air pipe is configured with a first joint, the air pipe of the outdoor unit is configured with a first matching joint adapted to the first joint, and the first joint and the first matching joint are detachably connected; and / or, The other end of the first air pipe is located outside the box body, the other end of the first air pipe is configured with a second joint, one end of the air pipe of the indoor unit is configured with a second matching joint adapted to the second joint, the other end of the air pipe of the indoor unit is connected to the air inlet and outlet of the indoor unit, and the second joint is detachably connected to the second matching joint; and / or, The other end of the second air pipe is located outside the box body, and the other end of the second air pipe is constructed with a third joint. One end of the air pipe of the floor heating is constructed with a third matching joint that matches the third joint. The other end of the air pipe of the floor heating is connected to the air inlet and outlet of the floor heating, and the third joint and the third matching joint are detachably connected.

8. The air conditioning system according to claim 3, characterized in that: The liquid pipe assembly also includes: A main liquid pipe, one end of which is located in the box body and is connected to one end of the first liquid pipe and one end of the second liquid pipe, and the other end of which is located outside the box body and can be connected to one end of the liquid pipe of the outdoor unit, and the other end of the liquid pipe of the outdoor unit is connected to the liquid inlet and outlet of the outdoor unit; Wherein, the other end of the main liquid pipe is configured with a fourth joint, the liquid pipe of the outdoor unit is configured with a fourth matching joint adapted to the fourth joint, and the fourth joint and the fourth matching joint are detachably connected; and / or, The other end of the first liquid pipe is located outside the box body, the other end of the first liquid pipe is configured with a fifth joint, one end of the liquid pipe of the indoor unit is configured with a fifth matching joint adapted to the fifth joint, the other end of the liquid pipe of the indoor unit is connected to the liquid inlet and outlet of the indoor unit, and the fifth joint is detachably connected to the fifth matching joint; and / or, The other end of the second liquid pipe is located outside the box body, and the other end of the second liquid pipe is constructed with a sixth joint. One end of the floor heating liquid pipe is constructed with a sixth matching joint that matches the sixth joint. The other end of the floor heating liquid pipe is connected to the liquid inlet and outlet of the floor heating, and the sixth joint and the sixth matching structure are detachably connected.

9. The air conditioning system according to claim 1, characterized in that: Also includes: The temperature sensor is located in the box body and is arranged in the liquid pipe assembly to detect the temperature of the refrigerant in the liquid pipe assembly.

10. The air conditioning system according to claim 1, characterized in that: Also includes: A first stop valve is provided on the gas pipe of the outdoor unit and is used to control the connection and disconnection between the gas pipe of the outdoor unit and the valve box; The second stop valve is arranged on the liquid pipe of the outdoor unit and is used for controlling the connection and disconnection between the liquid pipe of the outdoor unit and the valve box.

11. The air conditioning system according to claim 1, characterized in that: The liquid pipe of the outdoor unit includes a fixed liquid pipe and a connecting liquid pipe, one end of the connecting liquid pipe is detachably connected to the fixed liquid pipe, and the other end of the connecting liquid pipe is detachably connected to the valve box; and / or, The air pipe of the outdoor unit comprises a fixed air pipe and a connecting air pipe, one end of the connecting air pipe is detachably connected to the fixed air pipe, and the other end of the connecting air pipe is detachably connected to the valve box.

12. The air conditioning system according to any one of claims 1 to 11, characterized in that: The outdoor unit includes: A throttling device, one end of which is connected to the other end of the liquid pipe of the outdoor unit; an outdoor heat exchanger, one end of which is connected to the other end of the throttling device; One end of the compressor is connected to the other end of the outdoor heat exchanger, and the other end of the compressor is connected to the other end of the air pipe of the outdoor unit.

13. The air conditioning system according to claim 12, characterized in that: Also includes: A four-way valve, the first port of the four-way valve is connected to the other end of the outdoor heat exchanger, the second port of the four-way valve is connected to one end of the compressor, the third port of the four-way valve is connected to the other end of the compressor, and the fourth port of the four-way valve is connected to the other end of the air pipe of the outdoor unit.

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