Multi-way reversing valve and air conditioning system having the same

Abstract

The utility model discloses a kind of multi-pass reversing valve and air conditioning system with it, it is related to air conditioning technical field.Multi-pass reversing valve includes valve seat, movable valve core and driving part, there is cavity in valve seat, multiple valve ports are equipped on valve seat, multiple valve ports include press machine exhaust valve port, press machine suction valve port, first heat exchange port and second heat exchange port;Movable valve core is movably arranged in cavity, and cavity is divided into first, second conducting channel separated;Driving part is drivingly connected with movable valve core, wherein, driving part can drive movable valve core to switch to at least first position;When movable valve core is in first position, first conducting channel is communicated press machine suction valve port and a part of second heat exchange port, and second conducting channel is communicated remaining valve port.This multi-pass reversing valve switches the position of movable valve core, realizes the conduction of part valve port, and it is beneficial to control the flow path of refrigerant in different heat exchange branch.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, specifically to a multi-way reversing valve and an air conditioning system having the same. Background Technology

[0002] When an air conditioner is running in winter, the outdoor heat exchanger absorbs heat. If the outside temperature is low, water vapor in the air will condense into frost on its surface, affecting heat exchange efficiency and requiring the defrosting mode to be activated. Some existing air conditioners defrost by switching to cooling mode and turning off the indoor fan, allowing the outdoor heat exchanger to release heat to defrost while the indoor heat exchanger absorbs heat. Although the cold air doesn't blow directly into the room, the system still absorbs heat from the room, causing a significant drop in indoor temperature and affecting user comfort.

[0003] In some related technologies, air conditioners use multiple reversing valves to control the refrigerant flow, thereby alternating the defrosting of the outdoor heat exchanger or enabling the indoor unit to dehumidify and heat. However, this method requires more components, is more expensive, has complex control, and offers limited functionality.

[0004] Therefore, one of the research directions of this utility model is to improve the structure of the reversing valve to achieve better defrosting control or dehumidification and heating functions. Utility Model Content

[0005] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, the first aspect of the present invention aims to provide a multi-port reversing valve, which controls the flow path of refrigerant in different heat exchange branches by switching the position of the movable valve core to achieve partial valve port opening.

[0006] The second objective of this utility model is to provide an air conditioning system having the aforementioned multi-way reversing valve.

[0007] A multi-way reversing valve according to a first aspect of the present invention includes: a valve seat, a movable valve core, and a driving member. The valve seat defines a cavity and has multiple valve ports, including a compressor exhaust valve port, a compressor intake valve port, a first heat exchange port, and at least two second heat exchange ports. The movable valve core is movably disposed within the cavity and divides the cavity into a first conduction channel and a second conduction channel spaced apart. The driving member is disposed on the valve seat and is drively connected to the movable valve core. The driving member is capable of driving the movable valve core to switch to at least a first position. When the movable valve core is in the first position, the first conduction channel connects the compressor intake valve port and a portion of the second heat exchange ports, and the second conduction channel connects the remaining valve ports.

[0008] According to an embodiment of this utility model, the multi-way reversing valve achieves conduction between some valve ports by setting a movable valve core with switchable positions. When this multi-way reversing valve is applied to an air conditioning system, by switching the position of the movable valve core, refrigerant can enter different outdoor heat exchange sections for defrosting. That is, part of the refrigerant is used to defrost some outdoor heat exchangers, while the other part of the refrigerant continues to participate in the normal heating cycle in outdoor heat exchangers that are not involved in defrosting. This ensures that during the defrosting process, some outdoor heat exchangers are always in a normal heating state, thereby achieving the continuity of heating in the air conditioning system, avoiding significant fluctuations in indoor temperature, and improving the user experience. Alternatively, when this multi-way reversing valve is applied to an air conditioning system, by switching the position of the movable valve core, the reversing valve can allow refrigerant to enter different indoor heat exchange sections to achieve dehumidification and heating functions. That is, part of the refrigerant is used to cool and dehumidify some indoor heat exchange sections, while the other part of the refrigerant is used to heat other indoor heat exchange sections. This avoids excessively low indoor ambient temperature due to dehumidification of indoor heat exchange sections, which would affect comfort.

[0009] In some optional embodiments, the drive member can also drive the movable valve core to switch to a second position, and the drive member can drive the movable valve core to switch between the first position and the second position; when the movable valve core is in the second position, the first conduction channel connects to at least one of the compressor intake valve port and another portion of the second heat exchange ports, and the second conduction channel connects to the remaining valve ports.

[0010] Alternatively, the driving component can also drive the movable valve core to switch to a third position, and the driving component can drive the movable valve core to switch between the first position and the third position; when the movable valve core is in the third position, the first conducting channel connects the compressor intake valve port and the first heat exchange port, and the second conducting channel connects the compressor exhaust valve port and all the second heat exchange ports.

[0011] Alternatively, the driving member can also drive the movable valve core to switch to a fourth position, and the driving member can drive the movable valve core to switch between the first position and the fourth position; when the movable valve core is in the fourth position, the first conducting channel connects the compressor intake valve port and all the second heat exchange ports, and the second conducting channel connects the compressor exhaust valve port and the first heat exchange port.

[0012] Further optionally, the number of the first heat exchange ports is at least two, and the driving member can also drive the movable valve core to switch to the fifth position. The driving member can drive the movable valve core to switch between the first position and the fifth position. When the movable valve core is in the fifth position, the first conducting channel connects the compressor suction valve port and a portion of the first heat exchange ports, and the second conducting channel connects the remaining valve ports.

[0013] Specifically, the driving component can also drive the movable valve core to switch to the sixth position, and the driving component can drive the movable valve core to switch between the first position, the fifth position and the sixth position; When the active valve core is in the sixth position, the first conductive channel connects to at least one of the first heat exchange ports, which is the compressor intake valve port and another portion of the first heat exchange ports, and the second conductive channel connects to the remaining valve ports.

[0014] According to some optional embodiments of the present invention, the movable valve core is rotatably disposed on the valve seat, and the movable valve core cooperates with the inner wall of the cavity to separate the cavity into the first conductive channel and the second conductive channel; wherein, the compressor suction valve port is adjacent to or located at the rotation axis of the movable valve core and is in a normally open state with the first conductive channel, and the other valve ports are arranged at intervals along the direction surrounding the compressor suction valve port.

[0015] Optionally, the valve seat includes a shell top and a shell bottom disposed opposite to each other, and a shell peripheral wall surrounding the edges of the shell top and the shell bottom; the movable valve core has a top wall and a valve core side wall surrounding the top wall; the valve core side wall, the top wall and the shell bottom together define a first conduction channel; the valve core side wall, the top wall and the shell bottom and the shell top together define a second conduction channel.

[0016] Further optionally, all the valve ports are located on the bottom of the shell, and the first heat exchange port and the at least two second heat exchange ports are arranged on the same circumference with the axis of rotation as the center.

[0017] In some specific embodiments, the top of the housing is provided with an assembly hole, the drive component is disposed on the top of the housing, and passes through the assembly hole and is connected to the movable valve core via a transmission shaft; the movable valve core also includes a mounting hole provided on the top wall, and the transmission shaft is fixed at the mounting hole.

[0018] An air conditioning system according to a second aspect of the present invention includes: a compressor, a multi-way reversing valve, a second heat exchanger, a first heat exchanger, and a throttling device; the compressor has an exhaust port and an intake port; the compressor exhaust valve port is connected to the exhaust port, and the compressor intake valve port is connected to the intake port; the first heat exchanger is connected to the first heat exchange port; the second heat exchanger includes at least two second heat exchange sections, each of which is connected to at least two corresponding second heat exchange ports; the throttling device is connected between the second heat exchanger and the first heat exchanger; the air conditioning system has a first operating mode, wherein when the air conditioning system is in the first operating mode, the movable valve core is in a first position, the first conducting channel is connected to the compressor intake valve port and a portion of the second heat exchange ports, the second conducting channel is connected to the remaining valve ports, the second heat exchange section connected to a portion of the second heat exchange ports is in an evaporating state, and the remaining second heat exchange sections and the first heat exchanger are in a condensing state. The multi-way reversing valve is the multi-way reversing valve described in the first aspect of the present invention.

[0019] In some embodiments, the air conditioning system further has a second operating mode, and the air conditioning system can switch between the first operating mode and the second operating mode; when the air conditioning system is in the second operating mode, the active valve core is in the second position, the first conducting channel is connected to the compressor suction valve port and at least one of the other part of the second heat exchange ports, the second conducting channel is connected to the remaining valve ports, the second heat exchange section connected to at least one of the other part of the second heat exchange ports is in an evaporation state, and the remaining second heat exchange sections and the first heat exchanger are in a condensation state.

[0020] Optionally, the air conditioning system also has a third operating mode, and the air conditioning system can switch between the first operating mode and the third operating mode; when the air conditioning system is in the third operating mode, the active valve core is in the third position, the first conducting channel connects the compressor intake valve port and the first heat exchange port, the second conducting channel connects the compressor exhaust valve port and all the second heat exchange ports, the first heat exchanger is in the evaporation state, and all the second heat exchange sections are in the condensation state.

[0021] Alternatively, the air conditioning system also has a fourth operating mode, and the air conditioning system can switch between the first operating mode and the fourth operating mode; when the air conditioning system is in the fourth operating mode, the active valve core is in the fourth position, the first conducting channel connects the compressor intake valve port and all the second heat exchange ports, the second conducting channel connects the compressor exhaust valve port and the first heat exchange port, all the second heat exchange sections are in the evaporation state, and the first heat exchanger is in the condensation state.

[0022] Furthermore, the number of the first heat exchange ports is at least two, the first heat exchanger includes at least two first heat exchange parts, the at least two first heat exchange parts and the at least two first heat exchange ports are correspondingly connected, the air conditioning system also has a fifth operating mode, the air conditioning system can switch between the first operating mode and the fifth operating mode; when the air conditioning system is in the fifth operating mode, the active valve core is in the fifth position, the first conducting channel connects the compressor suction valve port and a portion of the first heat exchange ports, the second conducting channel connects the remaining valve ports, the first heat exchange parts connected to a portion of the first heat exchange ports are in an evaporation state, and the remaining first heat exchange parts and all the second heat exchange parts are in a condensation state.

[0023] Further optionally, the air conditioning system also has a sixth operating mode, and the air conditioning system can switch between the first operating mode, the fifth operating mode and the sixth operating mode; when the air conditioning system is in the sixth operating mode, the active valve core is in the sixth position, the first conducting channel is connected to the compressor suction valve port and at least one of the other part of the first heat exchange ports, the second conducting channel is connected to the remaining valve ports, the first heat exchange section connected to at least one of the other part of the first heat exchange ports is in the evaporation state, and the remaining first heat exchange sections and all the second heat exchange sections are in the condensation state.

[0024] In some embodiments, the air conditioning system has at least two branches at the second heat exchanger, each branch having a second heat exchange unit connected in series, and the at least two branches being connected to at least two second heat exchange ports in a one-to-one correspondence; the air conditioning system has a main line at the first heat exchanger, the first heat exchanger being connected in series on the main line, one end of the main line being connected to the first heat exchange port, and the other end being connected to all the branches; the throttling device includes: a main throttling element and at least one branch throttling element, the main throttling element being connected in series on the main line, and at least one branch throttling element being connected in series on at least one of the branches.

[0025] Furthermore, the main throttling device is an electronically adjustable expansion valve, and the branch throttling device is a capillary tube or an expansion valve.

[0026] Optionally, the air conditioning system also has a cooling mode, in which the first conduction channel of the multi-way reversing valve is connected to the compressor suction valve port and the first heat exchange port, and the second conduction channel is connected to the remaining valve ports.

[0027] In some optional embodiments, the air conditioning system further includes an outdoor unit, the second heat exchanger is an outdoor heat exchanger, the second heat exchanger is disposed inside the outdoor unit, and at least two second heat exchange units are arranged sequentially along the height direction or along the front-to-back direction.

[0028] In some alternative embodiments, the air conditioning system further includes an indoor unit, the second heat exchanger is an indoor heat exchanger, the second heat exchanger is disposed inside the indoor unit, and at least two second heat exchange sections are arranged sequentially along the height direction or along the front-to-back direction.

[0029] Specifically, the air conditioning system further includes at least two indoor air conditioning units, at least two second heat exchange units are disposed in the at least two indoor air conditioning units, and at least one of the indoor units is provided with two second heat exchange units.

[0030] According to some optional embodiments, the air conditioning system further includes an indoor unit and an outdoor unit, wherein the first heat exchanger is an indoor heat exchanger disposed inside the indoor unit, and at least two first heat exchange sections are arranged sequentially along the height direction or along the front-back direction; the second heat exchanger is an outdoor heat exchanger disposed inside the outdoor unit, and at least two second heat exchange sections are arranged sequentially along the height direction or along the front-back direction.

[0031] Optionally, the air conditioning system further includes an indoor unit and an outdoor unit, wherein the first heat exchanger is an outdoor heat exchanger and is disposed inside the outdoor unit, and at least two of the first heat exchange units are arranged sequentially along the height direction or along the front-back direction; the second heat exchanger is an indoor heat exchanger and is disposed inside the indoor unit, and at least two of the second heat exchange units are arranged sequentially along the height direction or along the front-back direction.

[0032] 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

[0033] 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: Figure 1This is a schematic diagram of the structure of the multi-way reversing valve in some embodiments of this utility model; Figure 2 This is a schematic diagram showing the arrangement of valve ports in some embodiments of this utility model; Figure 3 This is a schematic diagram showing the position of the multi-way reversing valve in the air conditioning system in some embodiments of this utility model; Figure 4 This is a diagram showing the position of the movable valve core (in the first position) within the cavity in some embodiments of this utility model; Figure 5 This is a perspective view of the movable valve core in some embodiments of the present invention; Figure 6 This is a bottom view of the movable valve core in some embodiments of this utility model; Figure 7 This is a side view of the movable valve core in some embodiments of the present invention; Figure 8 This is a schematic diagram of the refrigerant circulation of an air conditioning system (when the active valve core is in the first position) in some embodiments of the present invention; Figure 9 This is a diagram showing the position of the movable valve core (in the second position) within the cavity in some embodiments of this utility model; Figure 10 This is a schematic diagram of the refrigerant circulation of an air conditioning system (when the active valve core is in the second position) in some embodiments of this utility model; Figure 11 This is a schematic diagram of the structure of the multi-way reversing valve in some embodiments of the present invention; Figure 12 This is a schematic diagram of refrigerant circulation in an air conditioning system where the branch throttling element is a capillary tube, as shown in some embodiments of this utility model. Figure 13 This is a diagram showing the position of the movable valve core (in the third position) within the cavity in some embodiments of this utility model; Figure 14 This is a schematic diagram of the refrigerant circulation of the air conditioning system (when the active valve core is in the third position) in some embodiments of this utility model; Figure 15 This is a diagram showing the position of the movable valve core (in the fourth position) within the cavity in some embodiments of this utility model; Figure 16 This is a schematic diagram of the refrigerant circulation of the air conditioning system (when the active valve core is in the fourth position) in some embodiments of this utility model; Figure 17 This is a schematic diagram of an air conditioning system (with two first heat exchangers) in some embodiments of the present invention.

[0034] Figure label: Air conditioning system 1000 Multi-way directional valve 100 Valve seat 10, cavity 11, valve port 12, compressor exhaust valve port 121, compressor intake valve port 122, first heat exchange port 123, second heat exchange port 124, connecting pipe 13, shell top 141, assembly hole 1410, shell bottom 142, shell peripheral wall 143. movable valve core 20, rotation axis L, Top wall 21, mounting hole 210, valve core side wall 22 Drive component 30, transmission shaft 31 First conductive channel 41, second conductive channel 42 Compressor 200, exhaust port 201, intake port 202 Second heat exchanger 300, second heat exchange section 301 First heat exchanger 400, first heat exchange section 401 Throttling device 500, main throttling element 510, branch throttling element 520. Detailed Implementation

[0035] 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.

[0036] In the description of this utility model, it should be understood that the terms "center," "upper," "lower," "top," "bottom," "inner," and "outer," 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 do not 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. Furthermore, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0037] 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.

[0038] The following is for reference. Figures 1-17 A multi-way directional valve 100 according to a first aspect embodiment of the present invention is described.

[0039] The application fields of the multi-way reversing valve 100 according to the embodiments of this utility model are not limited. Specifically, the multi-way reversing valve 100 can be used in refrigeration equipment, such as air conditioners, refrigerators, and freezers, to switch the refrigerant flow direction; or, the multi-way reversing valve 100 can also be applied in the field of industrial equipment to control the flow direction of fluids or gases in the equipment to meet various production needs.

[0040] In the following description of this application, the multi-way reversing valve 100 is used as an example in an air conditioning system 1000. Those skilled in the art will readily understand, after reading the following description, the implementation of the multi-way reversing valve 100 in other fields.

[0041] like Figure 1 As shown, the multi-way directional valve 100 according to an embodiment of the present utility model includes: valve seat 10, movable valve core 20 and drive member 30.

[0042] A cavity 11 is defined within the valve seat 10. The cavity 11 is used to contain refrigerant.

[0043] like Figure 2 As shown, the valve seat 10 is provided with multiple valve ports 12, including a compressor exhaust valve port 121, a compressor suction valve port 122, a first heat exchange port 123, and at least two second heat exchange ports 124. When the multi-way reversing valve 100 is applied in the air conditioning system 1000, the refrigerant can flow between different pipelines by providing multiple valve ports 12.

[0044] For example, combining Figure 3 In the air conditioning system 1000, the compressor discharge valve port 121 and the compressor suction valve port 122 are respectively used to connect the discharge port 201 and suction port 202 of the compressor 200. The first heat exchange port 123 is connected to the first heat exchanger 400, and the second heat exchange port 124 is connected to the second heat exchanger 300. The second heat exchanger 300 includes at least two second heat exchange sections 301. By changing the position of the movable valve core 20 within the valve seat 10 cavity 11, the flow and cut-off of refrigerant between different valve ports 12 can be controlled, thereby realizing the switching of multiple operating modes such as cooling, heating, defrosting, alternating defrosting, and dehumidification heating. This multi-way reversing valve 100 helps simplify the piping connection of the air conditioning system 1000 and enhances the control flexibility of the air conditioning system 1000.

[0045] In some optional embodiments, the second heat exchanger 300 includes a plurality of second heat exchange sections 301. There are also a plurality of second heat exchange ports 124, each corresponding to and connected to one of the second heat exchange sections 301. Through the cooperative arrangement of the plurality of second heat exchange ports 124 in the multi-way directional valve 100 with the second heat exchange sections 301, each second heat exchange section 301 can be independently connected or switched via the multi-way directional valve 100.

[0046] In this application, the arrangement of the multiple valve ports 12 is highly flexible. Optionally, the multiple valve ports 12 can be arranged on the same plane. For example, the multiple valve ports 12 can be located on the same top wall 21 or the same bottom wall of the valve seat 10; or, the multiple valve ports 12 can be distributed on different walls of the valve seat 10. For example, the compressor suction valve port 122 is located on the top wall 21 or the bottom wall of the valve seat 10, and the remaining valve ports 12 are arranged on the peripheral wall of the valve seat 10 in a ring-shaped interval.

[0047] Further, optionally, combined Figure 1 The multi-way reversing valve 100 also includes multiple connecting pipes 13. Each connecting pipe 13 is connected to a corresponding valve port 12. This extends the flow path of the corresponding valve port 12 outward to facilitate connection and conduction with the corresponding pipeline in the air conditioning system 1000.

[0048] The movable valve core 20 is movably disposed in the cavity 11, and the movable valve core 20 divides the cavity 11 into a first conduction channel 41 and a second conduction channel 42 that are separated from each other.

[0049] Multiple valve ports 12 are connected to different branches one by one, avoiding complex cross-connections of external pipelines and making the overall layout of the air conditioning system simpler. By using the switching of the movable valve core 20, the switching control that originally required multiple valves or some complex external pipelines can now be completed with just a multi-way reversing valve 100, reducing external connection points and improving the functionality of the air conditioning system 1000.

[0050] Furthermore, the movement of the movable valve core 20 can change the connection state between different valve ports 12 within the cavity 11, thereby realizing the conduction and isolation of multiple fluid channels. For example, in the air conditioning system 1000, the refrigerant flow direction can be switched to realize different operating modes such as cooling, heating, defrosting, alternating defrosting, and dehumidification heating.

[0051] It is worth noting that the movement of the movable valve core 20 includes rotation and translation.

[0052] For example, combining Figures 4-7 The movable valve core 20 is cylindrical or disc-shaped and rotates around the rotation axis within the cavity 11. The valve core surface or interior is provided with flow guiding channels, and by changing the rotation angle, different channels are aligned with or offset from the valve ports 12 on the valve seat 10.

[0053] For example, the movable valve core 20 is columnar or block-shaped and slides in the cavity 11 in a straight line, achieving channel switching through through holes or flow guiding structures at different positions.

[0054] In this application, the movable valve core 20 can be fitted in the cavity 11 in a manner and with a specific structure that are known in the prior art, and will not be described in detail here.

[0055] In some technical solutions, the movable valve core 20 has a first conducting channel 41 or a second conducting channel 42 inside. When the movable valve core 20 moves to different positions, some valve ports 12 are connected through the first conducting channel 41 or the second conducting channel 42, while other valve ports 12 are connected through the second conducting channel 42 or the first conducting channel 41. By controlling the position change of the movable valve core 20, the conducting state can be flexibly switched, thereby realizing the control of multiple fluids and improving the functionality of the multi-way directional valve 100.

[0056] In this application, the shapes of the first conduction channel 41 and the second conduction channel 42 can be very flexible, and their shapes can be straight, curved, or spiral structures. The positions of the first conduction channel 41 and the second conduction channel 42 can also be very flexible; they can be located on the surface of the movable valve core 20 or inside the movable valve core 20.

[0057] The drive component 30 is connected to the movable valve core 20 via a transmission connection. Here, the drive component 30 can directly or indirectly drive the movable valve core 20 to move, thereby achieving position switching of the movable valve core 20. It should be noted that the installation position of the drive component 30 is highly flexible; it can be integrated with the valve seat 10 or installed externally as a separate unit, facilitating maintenance and control, thereby effectively improving the spatial adaptability and assembly convenience of the multi-way directional valve 100.

[0058] In some specific embodiments, the drive element 30 is disposed on the valve seat 10. By integrating the drive element 30 onto the valve seat 10, there is no need to set up an additional independent drive bracket or external connection structure, simplifying the overall layout, reducing installation space, and improving the integration of the multi-way directional valve 100. Moreover, the short connection distance between the drive element 30 and the movable valve core 20 facilitates the application of a stable and controllable driving force to the valve core, ensuring that it moves accurately to the designated position within the cavity 11, which helps to improve the response speed and control accuracy of the valve core's movement.

[0059] Optionally, the drive unit 30 may be a stepper motor, servo motor, solenoid valve or cylinder, etc.

[0060] Alternatively, the drive unit 30 can be electrically connected to the controller in the air conditioning system 1000 to realize the control function, enabling the multi-way reversing valve 100 to flexibly switch the fluid channel according to different operating requirements.

[0061] For example, in the air conditioning system 1000, the user can switch between cooling, heating, alternating defrosting, or dehumidification and heating (dehumidification and reheating) modes according to their operation.

[0062] It is worth noting that the operating mode of the air conditioning system 1000 varies in different seasons.

[0063] For example, when the first heat exchanger 400 is an indoor heat exchanger and the second heat exchanger 300 is an outdoor heat exchanger, in summer, the second heat exchanger 300 is used to release heat and the temperature is high, so it will not frost and therefore does not need to be defrosted; while the first heat exchanger 400 is used to absorb heat and the temperature is usually not lower than 16°C, so there is no need to use the defrost mode.

[0064] In winter, the second heat exchanger 300 absorbs heat. If the ambient temperature is low, water vapor in the air will condense into frost on its surface, affecting heat exchange efficiency and requiring regular defrosting. The traditional defrosting method is to switch to cooling mode, allowing the second heat exchanger 300 to release heat to defrost, while simultaneously turning off the indoor fan to reduce direct cold airflow. However, this method still absorbs heat from the room, causing a significant drop in indoor temperature and affecting user comfort.

[0065] The driving component 30 in this embodiment can drive the movable valve core 20 to switch to at least the first position. Combined with... Figure 4 and Figure 8 When the active valve core 20 is in the first position, the first conduction channel 41 connects the compressor intake valve port 122 and part of the second heat exchange port 124, and the second conduction channel 42 connects the remaining valve ports 12.

[0066] Specifically, when the first heat exchanger 400 is an indoor heat exchanger and the second heat exchanger 300 is an outdoor heat exchanger, the indoor heat exchanger is installed in the indoor unit, and at least two second heat exchange sections 301 are installed in one outdoor unit. The multi-way reversing valve 100 is applied to the air conditioning system 1000. When the movable valve core 20 is in the first position, the air conditioning system 1000 switches to defrost mode, defrosting a portion of the second heat exchange sections 301, while the other portion of the second heat exchange sections 301 participates in heating normally. (Refer to...) Figure 8 The refrigerant is discharged from the exhaust port 201 of the compressor 200. The refrigerant, under high temperature and pressure, enters the multi-way reversing valve 100 through the compressor exhaust valve port 121. Part of the refrigerant enters the corresponding second heat exchange section 301 through a second heat exchange port 124 to defrost the second heat exchange section 301 and release heat in the process. The other part of the refrigerant enters the first heat exchanger 400 through the first heat exchange port 123 for condensation and heat exchange, which is used to heat the indoor space.

[0067] After the two refrigerants are combined, they are throttled by the branch throttling device 520 and enter another second heat exchange section 301 for evaporation and heat absorption. Then they flow into the corresponding second heat exchange port 124 of the multi-way reversing valve 100 and finally are discharged through the compressor suction valve port 122 and enter the suction port 202 of the compressor 200 to complete the entire cycle.

[0068] In summary, the multi-way reversing valve 100 of this utility model realizes the conduction of some valve ports 12 by switching the position of the movable valve core 20, thereby controlling the flow of refrigerant in different heat exchange branches, simplifying the system structure, and at the same time satisfying the comfort of the air conditioning system 1000 in defrost mode.

[0069] In other embodiments, when the first heat exchanger 400 is an outdoor heat exchanger and the second heat exchanger 300 is an indoor heat exchanger, the outdoor heat exchanger is installed in the outdoor unit, and at least two second heat exchange sections 301 are installed in one indoor unit. When the movable valve core 20 is in the first position, the air conditioning system 1000 switches to dehumidification and heating mode, with one part of the second heat exchange sections 301 performing cooling and dehumidification, and the other part of the second heat exchange sections 301 performing heating. (Refer to...) Figure 8 The refrigerant is discharged from the exhaust port 201 of the compressor 200. The refrigerant, under high temperature and pressure, enters the multi-way reversing valve 100 through the compressor exhaust valve port 121. Part of the refrigerant enters the corresponding second heat exchange section 301 through a second heat exchange port 124 for condensation and heat exchange to heat the indoor space; the other part of the refrigerant enters the first heat exchanger 400 through a first heat exchange port 123 for condensation and heat exchange to dissipate heat to the outdoor environment.

[0070] After the two refrigerants are combined, they are throttled by the branch throttling device 520 and enter another second heat exchange section 301 to evaporate and absorb heat, thereby achieving cooling and dehumidification of the indoor air. Then, they flow into the corresponding second heat exchange port 124 of the multi-way reversing valve 100 and finally are discharged through the compressor suction valve port 122 and enter the suction port 202 of the compressor 200 to complete the entire cycle.

[0071] In summary, the multi-way reversing valve 100 of this utility model realizes the conduction of some valve ports 12 by switching the position of the movable valve core 20, thereby controlling the flow of refrigerant in different heat exchange branches, simplifying the system structure, and at the same time satisfying the comfort of the air conditioning system 1000 in dehumidification and heating mode.

[0072] According to some embodiments of the present invention, the multi-way reversing valve 100, combined with Figures 9-10The drive unit 30 can also drive the movable valve core 20 to switch to the second position, and the drive unit 30 can drive the movable valve core 20 to switch between the first position and the second position. When the movable valve core 20 is in the second position, the first conduction channel 41 connects to at least one of the compressor suction valve port 122 and another part of the second heat exchange port 124, and the second conduction channel 42 connects to the remaining valve ports 12.

[0073] Specifically, when the first heat exchanger 400 is an indoor heat exchanger and the second heat exchanger 300 is an outdoor heat exchanger, the indoor heat exchanger is installed in the indoor unit, and at least two second heat exchange units 301 are installed in one outdoor unit. When the movable valve core 20 is in the second position, the air conditioning system 1000 switches to another second heat exchange unit 301 for defrosting.

[0074] Optionally, the multi-way reversing valve 100 is provided with multiple second heat exchange ports 124, which are respectively connected to different second heat exchange sections 301 to achieve alternating defrosting. Each time a certain part of the second heat exchange section 301 is defrosted, high-temperature and high-pressure refrigerant flows through that branch, causing it to heat up and defrost.

[0075] Meanwhile, the first heat exchanger 400 and the second heat exchanger 301, which does not defrost, continue to participate in the normal heating cycle, thus avoiding indoor temperature fluctuations caused by defrosting and improving the user experience.

[0076] Therefore, the air conditioning system 1000 completes the defrosting process without affecting the indoor heating, effectively avoiding indoor temperature fluctuations caused by defrosting and improving the operational stability and user comfort of the air conditioning system 1000.

[0077] Reference Figure 10 When the active valve core 20 is in the second position, the air conditioning system 1000 heats and defrosts the second heat exchange section 301 of another branch, forming an alternating defrosting mechanism with the first position, thus avoiding indoor temperature fluctuations caused by traditional overall defrosting.

[0078] In other embodiments, when the first heat exchanger 400 is an outdoor heat exchanger and the second heat exchanger 300 is an indoor heat exchanger, the outdoor heat exchanger is installed in the outdoor unit, and at least two second heat exchange units 301 are installed in one indoor unit. When the movable valve core 20 is in the second position, the air conditioning system 1000 switches to another second heat exchange unit 301 for dehumidification.

[0079] Optionally, the multi-way reversing valve 100 is provided with multiple second heat exchange ports 124, which are respectively connected to different second heat exchange sections 301 to realize alternating dehumidification and heating. When at least two second heat exchange sections 301 are arranged sequentially along the height direction of the indoor unit, alternating dehumidification and heating can dehumidify the air in different areas.

[0080] Reference Figure 10When the active valve core 20 is in the second position, the air conditioning system 1000 dehumidifies the second heat exchange section 301 of another branch, forming an alternating dehumidification mechanism with the first position to avoid the local temperature of the indoor space being too low or too high. Specifically, the local temperature of the indoor space corresponding to the second heat exchange section 301 that achieves dehumidification will be too low, and the local temperature of the indoor space corresponding to the second heat exchange section 301 that achieves heating will be too high.

[0081] In some alternative embodiments, the first heat exchanger 400 includes a plurality of first heat exchange sections 401, each of which is connected in series with a throttling device of an indoor unit. Figure 11 The multi-way reversing valve 100 has multiple first heat exchange ports 123, each corresponding to a first heat exchange section 401. When the first heat exchanger 400 is an indoor heat exchanger and the second heat exchanger 300 is an outdoor heat exchanger, at least two first heat exchange sections 401 are installed in one indoor unit, and at least two second heat exchange sections 301 are installed in one outdoor unit. When the compressor discharge valve port 121 connects a portion of the first heat exchange ports 123 and all the second heat exchange sections 301, the refrigerant flows from the compressor 200 discharge port to the compressor discharge valve port 121. Then, a portion of the refrigerant flows through a portion of the first heat exchange ports 123 to the corresponding first heat exchange section 401, a portion of the refrigerant undergoes condensation and heat exchange in a portion of the first heat exchange section 401, and another portion of the refrigerant flows through the second heat exchange ports 124 to all the second heat exchange sections 301 so that all the second heat exchange sections 301 undergo condensation and heat exchange. After the two refrigerant streams are combined, they are throttled by the throttling device in the indoor unit, and then enter the remaining portion of the first heat exchanger 401, so that the remaining portion of the first heat exchanger 401 is in an evaporating state. The first heat exchanger 400 in the evaporating state can be used for dehumidification, and the first heat exchanger 400 in the condensing state can be used for heating the air, thereby realizing the dehumidification and heating mode of the air conditioning system.

[0082] This allows the air conditioning system 100 to simultaneously perform alternating defrosting and dehumidification / heating functions. For example, when the indoor space requires dehumidification without cooling, the air conditioning system 100 can operate in dehumidification / heating mode. Conversely, when the indoor space requires heating and the outdoor heat exchanger requires defrosting, the air conditioning system 100 can switch to alternating defrosting mode, improving the practicality of the air conditioning system 1000. Furthermore, by incorporating a multi-way reversing valve 100, the air conditioning system 1000's structure is simplified, reducing the number of pipes and valves and lowering costs.

[0083] Of course, this utility model is not limited to this. The movable valve core 20 can also have a third position. Correspondingly, the driving member 30 can also drive the movable valve core 20 to switch to the third position. The driving member 30 can drive the movable valve core 20 to switch between the first position and the third position. When the movable valve core 20 is in the third position, the first conducting channel 41 connects the compressor intake valve port 122 and the first heat exchange port 123, and the second conducting channel 42 connects the compressor exhaust valve port 121 and all the second heat exchange ports 124.

[0084] When the first heat exchanger 400 is an indoor heat exchanger and the second heat exchanger 300 is an outdoor heat exchanger, the indoor heat exchanger is installed in the indoor unit, and at least two second heat exchange units 301 are installed in one outdoor unit. In this case, the air conditioning system 1000 is set to a cooling mode that matches the third position.

[0085] Specifically, combined Figures 13-14 After the refrigerant is discharged from the discharge port 201 of the compressor 200, it enters the valve body through the compressor discharge valve port 121 of the multi-way reversing valve 100 and is respectively connected to the two second heat exchange ports 124. Subsequently, the refrigerant flows into the second heat exchange section 301 corresponding to each of the second heat exchange ports 124, where it condenses and releases heat.

[0086] After condensation, the refrigerant flows sequentially through its respective branches and converges into the main circuit. Subsequently, it undergoes throttling and pressure reduction in the main circuit before finally entering the first heat exchanger 400 for evaporation and heat absorption.

[0087] After absorbing heat, the refrigerant enters the multi-way reversing valve 100 through the first heat exchange port 123, and is discharged through the compressor suction valve port 122, eventually returning to the suction port 202 of the compressor 200 to complete the entire refrigeration cycle.

[0088] Alternatively, when the first heat exchanger 400 is an indoor heat exchanger and the second heat exchanger 300 is an outdoor heat exchanger, the indoor heat exchanger is installed in the indoor unit, at least two second heat exchange sections 301 are installed in one outdoor unit, and the second heat exchange port 124 is connected to the second heat exchanger 300, it is in heating mode.

[0089] In this embodiment, the multi-way reversing valve 100 provides different flow paths for the refrigerant, enabling the air conditioning system 1000 to simultaneously have partial defrosting mode, cooling mode, and heating mode.

[0090] In some further embodiments, the drive element 30 can also drive the movable valve core 20 to switch to a fourth position, and the drive element 30 can drive the movable valve core 20 to switch between a first position and a fourth position. When the movable valve core 20 is in the fourth position, the first conduction channel 41 connects the compressor intake valve port 122 and all the second heat exchange ports 124, and the second conduction channel 42 connects the compressor exhaust valve port 121 and the first heat exchange port 123.

[0091] Combination Figures 15-16 In this fourth position, the air conditioning system 1000 is in heating mode. After the refrigerant is discharged from the exhaust port 201 of the compressor 200, it enters the valve body through the compressor exhaust valve port 121 of the multi-way reversing valve 100, and flows out from the first heat exchange port 123 into the first heat exchanger 400, where it condenses and releases heat to provide heat to the indoor side.

[0092] Subsequently, the refrigerant flow is throttled and depressurized. The throttled refrigerant is divided into two streams, which flow into the two second heat exchange sections 301 respectively.

[0093] Afterwards, the refrigerant enters the second heat exchange port 124 of the multi-way reversing valve 100 from the two second heat exchange ports 124 respectively, and after converging in the cavity 11, it is discharged from the compressor suction valve port 122 and finally returns to the suction port 202 of the compressor 200 to complete the entire heating cycle.

[0094] Alternatively, when the second heat exchange port 124 is connected to the second heat exchanger 300, it is in cooling mode.

[0095] According to some embodiments of the present invention, the multi-way reversing valve 100 also has a fifth position. The number of first heat exchange ports 123 is at least two, and the driving member 30 can also drive the movable valve core 20 to switch to the fifth position. The driving member 30 can drive the movable valve core 20 to switch between the first position and the fifth position. When the movable valve core 20 is in the fifth position, the first conducting channel 41 connects the compressor suction valve port 122 and a portion of the first heat exchange ports 123, and the second conducting channel 42 connects the remaining valve ports 12.

[0096] Specifically, the first heat exchanger 400 includes multiple first heat exchange sections 401, each of which is connected in series with a throttling device of an indoor unit. There are multiple first heat exchange ports 123, and the multi-way reversing valve 100 has multiple first heat exchange ports 123, which are connected to the first heat exchange sections 401 in a one-to-one correspondence. When the compressor discharge valve port 121 connects part of the first heat exchange port 123 and all of the second heat exchange ports 124, and the first heat exchanger 400 is an indoor heat exchanger and the second heat exchanger 300 is an outdoor heat exchanger, at least two first heat exchange sections 401 are installed in one indoor unit, and at least two second heat exchange sections 301 are installed in one outdoor unit. Refrigerant flows from the compressor 200 discharge port to the compressor discharge valve port 121, and then flows through part of the first heat exchange ports 123 to the first heat exchanger 400. The refrigerant undergoes condensation and heat exchange in part of the first heat exchanger 400, while another portion of the refrigerant flows through the second heat exchange ports 124 to all of the second heat exchange sections 301, ensuring that all of the second heat exchange sections 301 undergo condensation and heat exchange. After the two refrigerant paths converge, they are throttled by the throttling device of the indoor unit, and then enter the remaining portion of the first heat exchange sections 401, so that the remaining portion of the first heat exchange sections 401 is in an evaporating state, and the second heat exchangers 301 can also be in an evaporating state. The first heat exchanger 400 in the evaporation state can be used for dehumidification, and the first heat exchanger 400 in the condensation state can be used for heating air, thereby realizing the dehumidification and heating mode of the air conditioning system 1000.

[0097] In some alternative embodiments, when the compressor discharge valve port 121 connects all the second heat exchange ports 124 and part of the first heat exchange ports 123, the refrigerant flows from the compressor 200 discharge port to the compressor discharge valve port 121, and then is diverted to the second heat exchanger 300 and part of the first heat exchange section 401, where the refrigerant undergoes condensation heat exchange. At this time, the remaining portion of the first heat exchanger 400 can be in an evaporation state. The first heat exchanger 400 in the evaporation state can be used for dehumidification, and the first heat exchanger 400 in the refrigerant state can be used for heating air, thereby achieving another dehumidification and heating mode of the air conditioning system 1000.

[0098] When the air conditioning system 1000 is equipped with multiple first heat exchangers 400, the air conditioning system 1000 has alternating dehumidification and heating modes and at least two dehumidification and heating modes, which improves the practicality of the air conditioning system 1000. In addition, by setting up a multi-way reversing valve 100, the air conditioning system 1000 can simplify the structure, reduce the number of pipes and valves, and reduce manufacturing costs.

[0099] In some further embodiments, when the first heat exchanger 400 is an indoor heat exchanger and the second heat exchanger 300 is an outdoor heat exchanger, at least two first heat exchange sections 401 are disposed in one indoor unit and at least two second heat exchange sections 301 are disposed in one outdoor unit. The drive unit 30 can also drive the movable valve core 20 to switch to a sixth position. The drive unit 30 can drive the movable valve core 20 to switch between a first position, a fifth position, and a sixth position. When the movable valve core 20 is in the sixth position, the first conducting channel 41 connects to at least one of the compressor intake valve port 122 and another portion of the first heat exchange ports 123, and the second conducting channel 42 connects to the remaining valve ports 12, that is, the second conducting channel 42 connects to the compressor exhaust valve port 121, the remaining first heat exchange ports 123, and all the second heat exchange ports 124.

[0100] Thus, when the second heat exchange port 124 is connected to the second heat exchanger, it is in alternating dehumidification and heating mode; when the second heat exchange port 124 is connected to the first heat exchanger, it is in alternating defrosting mode, thereby further improving the practicality of the air conditioning system 1000.

[0101] In some alternative embodiments, the movable valve core 20 is rotatably disposed on the valve seat 10, and the movable valve core 20 cooperates with the inner wall of the cavity 11 to divide the cavity 11 into a first conduction channel 41 and a second conduction channel 42.

[0102] The multi-channel switching is achieved by rotating the movable valve core 20, which improves the control flexibility of the multi-way directional valve 100 and also helps to reduce the space occupied by the valve body and improve the compactness of the multi-way directional valve 100.

[0103] Among them, the compressor intake valve port 122 is close to or located at the rotation axis L of the movable valve core 20 and is normally open with the first conduction channel 41, while the other valve ports 12 are arranged at intervals along the direction surrounding the compressor intake valve port 122.

[0104] The compressor suction valve port 122 is always connected to the first conductive channel 41, ensuring that the suction path of the compressor 200 is stable and continuous during operation. This avoids the impact on the operating efficiency of the compressor 200 or the occurrence of pressure fluctuations due to suction interruption during the switching process, thereby improving the operational reliability of the air conditioning system 1000.

[0105] The remaining valve ports 12 are evenly distributed around the compressor intake valve port 122, so that the movable valve core 20 can switch different conduction states sequentially and stably during rotation, which facilitates a smooth transition between various operating modes such as cooling, heating, and alternating defrosting.

[0106] Optional, combined Figure 1The valve seat 10 includes a housing top 141, a housing bottom 142, and a housing peripheral wall 143 surrounding the edges of the housing top 141 and housing bottom 142. The movable valve core 20 has a top wall 21 and a valve core side wall 22 surrounding the top wall 21. The valve core side wall 22, the top wall 21, and the housing bottom 142 together define a first conduction channel 41. The valve core side wall 22, the top wall 21, and the housing bottom 142 and housing top 141 together define a second conduction channel 42.

[0107] In the above technical solution, the movable valve core 20, through its top wall 21 and side wall 22, cooperates with the top 141, bottom 142, and peripheral wall 143 of the valve seat 10 to form two mutually isolated conduction channels. This effectively separates the fluid paths between different valve ports 12, avoids crossflow, and improves the control accuracy and sealing performance of the multi-way directional valve 100.

[0108] By adjusting the position of the movable valve core 20, different valve ports 12 can be connected to the first conduction channel 41 or the second conduction channel 42 respectively, thereby realizing the switching of multiple operating modes, such as cooling, heating, defrosting, etc., and improving the functionality and applicability of the multi-way reversing valve 100.

[0109] Specifically, a sealing mating surface is formed between the valve core sidewall 22 and the housing peripheral wall 143. Combined with the rotation of the movable valve core 20, the opening or closing of different channels can be realized, effectively preventing refrigerant leakage and enhancing the reliability of the multi-way reversing valve 100.

[0110] In some specific embodiments, all valve ports 12 are located on the bottom of the housing 142, and the first heat exchange port 123 and at least two second heat exchange ports 124 are arranged on the same circumference with the rotation axis L as the center. This helps to achieve precise alignment of the movable valve core 20 with the different valve ports 12 during rotation.

[0111] In some technical solutions, the first heat exchange port 123 and at least two second heat exchange ports 124 are arranged at equal angular intervals around the rotation axis L. In this way, the movable valve core 20 only needs to rotate a certain angle to achieve switching between different valve ports 12, thereby improving the accuracy and stability of control.

[0112] In other technical solutions, the remaining valve ports 12 are arranged at intervals around the rotation axis L, and the included angles between the multiple valve ports 12 are not strictly equal. For example, the included angles between some valve ports 12 are larger to improve fault tolerance during switching.

[0113] Specifically, optionally, in combination Figure 1 and Figure 5The housing top 141 is provided with an assembly hole 1410. The drive component 30 is provided on the housing top 141 and passes through the assembly hole 1410 via a drive shaft 31 and is connected to the movable valve core 20. The movable valve core 20 also includes a mounting hole 210 provided on the top wall 21, and the drive shaft 31 is fixed at the mounting hole 210.

[0114] The drive shaft 31 is fixed at the mounting hole 210 on the top wall 21 of the movable valve core 20, which enhances the firmness of the connection and avoids loosening problems that may be caused by vibration, thereby improving the reliability and sealing performance of the multi-way directional valve 100 during long-term operation.

[0115] Furthermore, placing the drive component 30 outside the housing top 141 facilitates later maintenance and replacement. For example, if the drive component 30 malfunctions, it is not necessary to disassemble the entire valve body; the drive component can be removed from the housing top 141 for repair or replacement, reducing maintenance and time costs.

[0116] In some optional embodiments, the drive shaft 31 and the movable valve core 20 can be detachably connected, such as by snap-fit ​​or threaded connection, to facilitate assembly and replacement without affecting transmission accuracy.

[0117] Furthermore, a sealing ring is provided between the mounting hole 1410 and the drive shaft 31 to prevent refrigerant inside the cavity 11 from leaking out through the mounting hole 1410 and to improve the overall sealing performance.

[0118] like Figure 3As shown, an air conditioning system 1000 according to a second aspect embodiment of the present invention includes: a compressor 200, a multi-way reversing valve 100, a second heat exchanger 300, a first heat exchanger 400, and a throttling device 500. The compressor 200 has an exhaust port 201 and an intake port 202. A compressor exhaust valve port 121 is connected to the exhaust port 201, and a compressor intake valve port 122 is connected to the intake port 202. The first heat exchanger 400 is connected to a first heat exchange port 123. The second heat exchanger 300 includes at least two second heat exchange sections 301, each of which is correspondingly connected to at least two second heat exchange ports 124. The throttling device 500 is connected between the second heat exchanger 300 and the first heat exchanger 400. The air conditioning system 1000 has a first operating mode. When the air conditioning system 1000 is in the first operating mode, the movable valve core 20 is in the first position. The first conduction channel 41 connects to the compressor suction valve port 122 and a portion of the second heat exchange port 124. The second conduction channel 42 connects to the remaining valve ports 12. The second heat exchange section 301 connected to a portion of the second heat exchange port 124 is in an evaporation state, while the remaining second heat exchange sections 301 and the first heat exchanger 400 are in a condensation state. This achieves defrosting of a portion of the second heat exchange sections 301 during the heating process. By adopting an improved multi-way reversing valve 100, the switching function that previously required multiple valves or multiple external pipelines is integrated into a single multi-way reversing valve 100. For example, components such as the exhaust port 201, intake port 202, first heat exchanger 400, and multiple second heat exchange sections 301 of the compressor 200 can be connected and switched through the first conduction channel 41 and the second conduction channel 42 inside the multi-way reversing valve 100, thereby greatly reducing the number of external pipeline connections, simplifying the system structure, and facilitating assembly and maintenance.

[0119] It is worth noting that the type of air conditioning system 1000 according to the embodiments of this application is not limited. It can be a vehicle air conditioning system 1000, an integrated air conditioning unit, or a split air conditioning unit. An integrated air conditioning unit can include a window air conditioner or a portable air conditioner, and a split air conditioning unit can include a wall-mounted air conditioner or a cabinet air conditioner.

[0120] In some technical solutions, the air conditioning system 1000 also has a second operating mode, and the air conditioning system 1000 can switch between the first operating mode and the second operating mode.

[0121] When the air conditioning system 1000 is in the second operating mode, the movable valve core 20 is in the second position. The first conducting channel 41 connects to at least one of the compressor suction valve port 122 and another portion of the second heat exchange ports 124. The second conducting channel 42 connects to the remaining valve ports 12. The second heat exchange section 301 connected to at least one of the other portion of the second heat exchange ports 124 is in an evaporating state, while the remaining second heat exchange sections 301 and the first heat exchanger 400 are in a condensing state. This achieves defrosting of the other portion of the second heat exchange section 301 in the air conditioning system 1000.

[0122] Specifically, during the switching between the first and second operating modes, the multi-way reversing valve 100 switches between the first and second positions, enabling the air conditioning system 1000 to defrost different second heat exchange units 301, while the undefrosted second heat exchange units 301 continue to participate in the normal heating cycle. In this way, during defrosting, only the target branch participates in the heating operation, while the other branches can still exchange heat normally. This avoids the indoor temperature fluctuations caused by the entire circuit containing the second heat exchanger 300 participating in heating in traditional defrosting methods.

[0123] Alternatively, the air conditioning system 1000 also has a third operating mode, and the air conditioning system 1000 can switch between the first operating mode and the third operating mode. When the air conditioning system 1000 is in the third operating mode, the movable valve core 20 is in the third position, the first conduction channel 41 connects the compressor suction valve port 122 and the first heat exchange port 123, the second conduction channel 42 connects the compressor exhaust valve port 121 and all the second heat exchange ports 124, the first heat exchanger 400 is in the evaporation state, and all the second heat exchange sections 301 are in the condensation state.

[0124] Specifically, after the refrigerant is discharged from the discharge port 201 of the compressor 200, it enters the valve body through the compressor discharge valve port 121 of the multi-way reversing valve 100 and is respectively connected to the two second heat exchange ports 124. Subsequently, the refrigerant flows into its corresponding second heat exchange section 301, where it condenses and releases heat.

[0125] After condensation, the refrigerant flows sequentially through the branch throttling devices 520 on its respective branch. At this time, both branch throttling devices 520 are fully open, and the refrigerant does not undergo throttling or pressure reduction but directly flows into the main branch where the main throttling device 510 is located. Subsequently, the main throttling device 510 throttles and reduces the pressure of the refrigerant before it enters the first heat exchanger 400 for evaporation and heat absorption.

[0126] Subsequently, the refrigerant enters the first heat exchange port 123 of the multi-way reversing valve 100, and is discharged through the compressor suction valve port 122, eventually returning to the suction port 202 of the compressor 200 to complete the entire refrigeration cycle.

[0127] In this embodiment, the multi-way reversing valve 100 switches its internal conduction channels, thereby enabling the air conditioning system 1000 to switch between cooling mode and partial defrosting mode.

[0128] In some other technical solutions, the air conditioning system 1000 also has a fourth operating mode, and the air conditioning system 1000 can switch between the first operating mode and the fourth operating mode. When the air conditioning system 1000 is in the fourth operating mode, the active valve core 20 is in the fourth position, the first conducting channel 41 connects the compressor suction valve port 122 and all the second heat exchange ports 124, the second conducting channel 42 connects the compressor exhaust valve port 121 and the first heat exchange port 123, all the second heat exchange sections 301 are in the evaporation state, and the first heat exchanger 400 is in the condensation state.

[0129] Combination Figures 15-16 Specifically, in this fourth position, the air conditioning system 1000 is in heating mode. After the refrigerant is discharged from the exhaust port 201 of the compressor 200, it enters the valve body through the compressor exhaust valve port 121 of the multi-way reversing valve 100, and flows out from the first heat exchange port 123 into the first heat exchanger 400, where it condenses and releases heat to provide heat to the indoor space.

[0130] Subsequently, the refrigerant flows through the main throttling device 510, where it undergoes throttling and pressure reduction. The throttled refrigerant then splits into two streams, each flowing through a separate throttling device 520, which is fully open at this point. It then enters its corresponding second heat exchange section 301.

[0131] Subsequently, the refrigerant enters the second heat exchange port 124 of the multi-way reversing valve 100 from the two second heat exchange ports 124 respectively, and after converging in the valve body, it is discharged from the compressor suction valve port 122 and finally returns to the suction port 202 of the compressor 200, completing the entire heating cycle.

[0132] In this embodiment, the multi-way reversing valve 100 switches its internal conduction channel, thereby enabling the air conditioning system 1000 to switch between heating mode and partial defrosting mode, improving the practicality of the air conditioning system 1000.

[0133] According to some optional embodiments, the number of first heat exchange ports 123 is at least two, and the first heat exchanger 400 includes at least two first heat exchange sections 401, which are correspondingly connected to at least two first heat exchange ports 123. The air conditioning system 1000 also has a fifth operating mode, and the air conditioning system 1000 can switch between the first operating mode and the fifth operating mode. When the air conditioning system 1000 is in the fifth operating mode, the active valve core 20 is in the fifth position, the first conducting channel 41 connects to the compressor suction valve port 122 and a portion of the first heat exchange ports 123, the second conducting channel 42 connects to the remaining valve ports 12, the first heat exchange section 401 connected to a portion of the first heat exchange ports 123 is in an evaporation state, and the remaining first heat exchange sections 401 and all second heat exchange sections 301 are in a condensation state. This enables the air conditioning system 1000 to switch between a dehumidification heating mode and a partial defrosting mode.

[0134] Furthermore, the air conditioning system 1000 also has a sixth operating mode, allowing it to switch between the first, fifth, and sixth operating modes. When the air conditioning system 1000 is in the sixth operating mode, the active valve core 20 is in the sixth position. The first conducting channel 41 connects to at least one of the compressor suction valve port 122 and another portion of the first heat exchange ports 123. The second conducting channel 42 connects to the remaining valve ports 12. The first heat exchange section 401 connected to at least one of the other portion of the first heat exchange ports 123 is in an evaporating state, while the remaining first heat exchange sections 401 and all second heat exchange sections 301 are in a condensing state. This allows the air conditioning system 1000 to switch between alternating dehumidification and heating modes and alternating defrosting modes, further improving the operating efficiency and user comfort of the air conditioning system 1000.

[0135] In some specific embodiments, the air conditioning system 1000 is provided with at least two branches at the second heat exchanger 300, each branch having a second heat exchange section 301 connected in series, and the at least two branches being connected to at least two second heat exchange ports 124 in a one-to-one correspondence.

[0136] The air conditioning system 1000 has a main circuit at the first heat exchanger 400, with the first heat exchanger 400 connected in series on the main circuit. One end of the main circuit is connected to the first heat exchange port 123, and the other end is connected to all branch circuits. The throttling device 500 includes a main throttling element 510 and at least two branch throttling elements 520. The main throttling element 510 is connected in series on the main circuit, and at least one throttling element 520 is connected in series on each branch circuit.

[0137] Here, the main throttling element 510 is connected in series on the main circuit connecting the first heat exchanger 400 and the second heat exchanger 300, and is mainly used to adjust the refrigerant flow in the entire system according to the system's load requirements. It ensures that the system can operate effectively according to the current operating conditions.

[0138] Specifically, when the air conditioning system 1000 is in cooling or heating mode, the main throttling device 510 throttles and reduces pressure to regulate the pressure of the refrigerant flowing through the main circuit; the two branch throttling devices 520 remain fully open to ensure that the refrigerant in the branch circuit can flow smoothly without affecting the normal heat exchange process of the air conditioning system 1000.

[0139] When the air conditioning system 1000 is in the alternating defrosting mode, the main throttling device 510 remains fully open to allow the refrigerant to pass through the main circuit with lower resistance. At the same time, one of the two branches performs defrosting heating, and the other branch serves as a return path to return the refrigerant to the compressor 200. The branch throttling device 520 in this return branch performs throttling and pressure reduction operations to ensure the stability of the return process.

[0140] Optionally, the main throttling element 510 is an electronic expansion valve with adjustable opening. It can precisely adjust the refrigerant flow rate according to the operating status and load demand of the air conditioning system 1000, thereby achieving dynamic optimization of system performance. Simultaneously, the electronic expansion valve also has a fast response capability, quickly adjusting its opening to adapt to changes in the operating status of the air conditioning system 1000, such as switching from cooling mode to heating mode, thereby improving the stability and response speed of the air conditioning system 1000.

[0141] Alternatively, the branch throttling element 520 can be an expansion valve to improve the response speed; or, refer to Figure 12 Furthermore, the throttling element 520 can also be a throttling capillary tube or a throttling short tube. This helps reduce manufacturing costs.

[0142] According to some optional embodiments, the air conditioning system 1000 also includes an outdoor air conditioning unit, the second heat exchanger 300 is an outdoor heat exchanger, the second heat exchanger 300 is disposed inside the outdoor air conditioning unit, and at least two second heat exchange sections 301 are arranged sequentially along the height direction or along the front-back direction.

[0143] Here, the second heat exchanger 300 is separately installed inside the outdoor unit. This disperses the air flowing through the multiple second heat exchange sections 301, reducing heat short-circuiting. This prevents the wet vapor carried away from the surface of the second heat exchange section 301 during defrosting from condensing and forming a thicker frost layer on the heat-absorbing section 301.

[0144] Optionally, multiple second heat exchange units 301 are arranged along the height direction or the front-to-back direction.

[0145] Furthermore, different layout options also help improve the adaptability of the air conditioning system 1000 to the installation space, meeting the needs of diverse application scenarios.

[0146] In some technical solutions, the air conditioning system 1000 also includes at least two indoor air conditioning units, and at least two second heat exchange units 301 are installed in the at least two indoor air conditioning units, with at least one indoor unit having two second heat exchange units 301. By independently controlling the operating mode of the second heat exchange units 301 of each indoor air conditioning unit, it is possible to achieve simultaneous cooling, simultaneous heating, dehumidification and heating of multiple rooms, or independent cooling / heating on demand, thereby improving the zone control capability and usage flexibility of the air conditioning system.

[0147] According to some optional embodiments of the present invention, such as Figure 17 As shown, the air conditioning system 1000 also includes an indoor unit and an outdoor unit. A first heat exchanger 400 is the indoor heat exchanger, located inside the indoor unit. At least two first heat exchange sections 401 are arranged sequentially along the height direction or along the front-to-back direction. A second heat exchanger 300 is the outdoor heat exchanger, located inside the outdoor unit. At least two second heat exchange sections 301 are arranged sequentially along the height direction or along the front-to-back direction. This arrangement allows for the layout of the indoor and outdoor units according to different usage scenarios or user needs, improving the flexibility and adaptability of the air conditioning system 1000.

[0148] In some alternative embodiments, the air conditioning system 1000 further includes an indoor unit and an outdoor unit. A first heat exchanger 400 is an outdoor heat exchanger, disposed within the outdoor unit. At least two first heat exchange sections 401 are arranged sequentially along the height direction or along the front-to-back direction. A second heat exchanger 300 is an indoor heat exchanger, disposed within the indoor unit. At least two second heat exchange sections 301 are arranged sequentially along the height direction or along the front-to-back direction. This enhances the flexibility of the air conditioning system 1000 in different scenarios.

[0149] The following is for reference. Figure 1 and Figure 4 , Figure 9 , Figure 13 and Figure 15 The multi-way directional valve 100 according to a specific embodiment of the present invention is described in detail below. It is to be understood that the following description is merely illustrative and not intended to limit the scope of the invention.

[0150] Reference Figure 1 The multi-way directional valve 100 includes: a valve seat 10, a movable valve core 20, and a drive component 30.

[0151] The valve seat 10 defines a cavity 11. The valve seat 10 is provided with multiple valve ports 12, including a compressor exhaust valve port 121, a compressor intake valve port 122, a first heat exchange port 123, and two second heat exchange ports 124.

[0152] The valve seat 10 includes a shell top 141, a shell bottom 142 disposed opposite to each other, and a shell peripheral wall 143 surrounding the edges of the shell top 141 and the shell bottom 142.

[0153] The movable valve core 20 has a top wall 21 and a valve core side wall 22 surrounding the top wall 21.

[0154] The movable valve core 20 is rotatably mounted on the valve seat 10.

[0155] Reference Figure 1 and Figure 4 The valve core sidewall 22, top wall 21 and bottom shell 142 together define the first conduction channel 41.

[0156] The valve core sidewall 22, top wall 21, bottom shell 142, and top shell 141 together define the second conduction channel 42.

[0157] All valve ports 12 are located on the bottom of the housing 142.

[0158] The compressor intake valve port 122 is located at the rotation axis L of the movable valve core 20 and is normally open with the first conductive channel 41; the other valve ports 12 are evenly distributed around the compressor intake valve port 122 and are located on the same circumference with the rotation axis L of the movable valve core 20 as the center.

[0159] The top of the housing 141 is provided with an assembly hole 1410. The drive component 30 is provided on the top of the housing 141 and passes through the assembly hole 1410 via the transmission shaft 31 and is connected to the movable valve core 20.

[0160] The movable valve core 20 also includes a mounting hole 210 on the top wall 21, and the drive shaft 31 is fixed at the mounting hole 210.

[0161] Reference Figure 4 , Figure 9 , Figure 13 and Figure 15 The drive unit 30 is used to drive the movable valve core 20 to switch between the first position, the second position, the third position and the fourth position.

[0162] In the first position, the first conduction channel 41 connects the compressor intake valve port 122 and one of the second heat exchange ports 124; the second conduction channel 42 connects the compressor exhaust valve port 121, the other second heat exchange port 124 and the first heat exchange port 123.

[0163] In the second position, the first conduction channel 41 is switched to connect the compressor intake valve port 122 and another second heat exchange port 124, while the second conduction channel 42 is switched to connect the compressor exhaust valve port 121, the remaining second heat exchange port 124 and the first heat exchange port 123.

[0164] In the third position, the first conductive channel 41 connects the compressor intake valve port 122 and the first heat exchange port 123; the second conductive channel 42 connects the compressor exhaust valve port 121 and all the second heat exchange ports 124.

[0165] In the fourth position, the first conductive channel 41 connects the compressor intake valve port 122 and all the second heat exchange ports 124; the second conductive channel 42 connects the compressor exhaust valve port 121 and the first heat exchange port 123.

[0166] Other components of the multi-way reversing valve 100 according to the embodiments of the present invention, such as the first heat exchanger 400 and the second heat exchanger 300, as well as its operation, are known to those skilled in the art and will not be described in detail here.

[0167] In the description of this specification, references to terms such as "embodiment," "example," etc., 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, 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.

[0168] 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 multi-way directional valve, characterized in that, include: A valve seat, which defines a cavity, and is provided with a plurality of valve ports, including a compressor exhaust valve port, a compressor intake valve port, a first heat exchange port, and at least two second heat exchange ports. A movable valve core is movably disposed within the cavity, and the movable valve core divides the cavity into a first conduction channel and a second conduction channel that are separated by a space. A driving component, wherein the driving component is pulsatorically connected to the movable valve core; The driving component is capable of driving the movable valve core to switch to at least the first position; When the movable valve core is in the first position, the first conductive channel connects the compressor intake valve port and a portion of the second heat exchange port, and the second conductive channel connects the remaining valve ports.

2. The multi-way directional valve according to claim 1, characterized in that, The driving component can also drive the movable valve core to switch to the second position, and the driving component can drive the movable valve core to switch between the first position and the second position; When the movable valve core is in the second position, the first conduction channel connects to at least one of the second heat exchange ports, namely the compressor intake valve port and another portion of the second heat exchange ports, and the second conduction channel connects to the remaining valve ports.

3. The multi-way directional valve according to claim 1, characterized in that, The driving component can also drive the movable valve core to switch to a third position, and the driving component can drive the movable valve core to switch between the first position and the third position; When the active valve core is in the third position, the first conductive channel connects the compressor intake valve port and the first heat exchange port, and the second conductive channel connects the compressor exhaust valve port and all the second heat exchange ports.

4. The multi-way directional valve according to claim 1, characterized in that, The driving component can also drive the movable valve core to switch to the fourth position, and the driving component can drive the movable valve core to switch between the first position and the fourth position; When the active valve core is in the fourth position, the first conductive channel connects the compressor intake valve port and all the second heat exchange ports, and the second conductive channel connects the compressor exhaust valve port and the first heat exchange port.

5. The multi-way directional valve according to claim 1, characterized in that, The number of the first heat exchange ports is at least two, and the driving component can also drive the movable valve core to switch to the fifth position. The driving component can drive the movable valve core to switch between the first position and the fifth position. When the active valve core is in the fifth position, the first conductive channel connects the compressor intake valve port and a portion of the first heat exchange port, and the second conductive channel connects the remaining valve ports.

6. The multi-way directional valve according to claim 5, characterized in that, The driving component can also drive the movable valve core to switch to the sixth position, and the driving component can drive the movable valve core to switch between the first position, the fifth position and the sixth position; When the active valve core is in the sixth position, the first conductive channel connects to at least one of the first heat exchange ports, which is the compressor intake valve port and another portion of the first heat exchange ports, and the second conductive channel connects to the remaining valve ports.

7. The multi-way directional valve according to any one of claims 1-6, characterized in that, The movable valve core is rotatably mounted on the valve seat, and the movable valve core cooperates with the inner wall of the cavity to separate the cavity into the first conduction channel and the second conduction channel; The compressor intake valve port is located near or on the rotation axis of the movable valve core and is normally open to the first conductive channel. The other valve ports are arranged at intervals along the direction surrounding the compressor intake valve port.

8. The multi-way directional valve according to claim 7, characterized in that, The valve seat includes a shell top, a shell bottom disposed opposite to each other, and a shell peripheral wall surrounding the edges of the shell top and the shell bottom; The movable valve core has a top wall and valve core side walls surrounding the top wall; The first conductive channel is defined by the valve core sidewall, the top wall, and the bottom of the housing. The valve core sidewall, the top wall, the bottom of the housing, and the top of the housing together define a second conduction channel.

9. The multi-way directional valve according to claim 8, characterized in that, All the valve ports are located on the bottom of the shell, and the first heat exchange port and the at least two second heat exchange ports are arranged on the same circumference with the axis of rotation as the center.

10. The multi-way directional valve according to claim 8, characterized in that, The top of the housing is provided with an assembly hole, the drive component is disposed on the top of the housing, and passes through the assembly hole via a transmission shaft and is connected to the movable valve core; The movable valve core also includes a mounting hole on the top wall, and the drive shaft is fixed at the mounting hole.

11. An air conditioning system, characterized in that, include: The compressor has an exhaust port and an intake port; According to any one of claims 1-10, in the multi-way reversing valve, the compressor exhaust valve port is connected to the exhaust port, and the compressor intake valve port is connected to the intake port; The first heat exchanger is connected to the first heat exchange port; The second heat exchanger includes at least two second heat exchange sections, and the at least two second heat exchange sections are respectively connected to at least two second heat exchange ports. A throttling device is connected between the second heat exchanger and the first heat exchanger; The air conditioning system has a first operating mode. When the air conditioning system is in the first operating mode, the movable valve core is in the first position. The first conducting channel connects the compressor suction valve port and a portion of the second heat exchange port. The second conducting channel connects the remaining valve ports. The second heat exchange section connected to a portion of the second heat exchange port is in an evaporation state, and the remaining second heat exchange sections and the first heat exchanger are in a condensation state.

12. The air conditioning system according to claim 11, characterized in that, The air conditioning system also has a second operating mode, and the air conditioning system can switch between the first operating mode and the second operating mode; When the air conditioning system is in the second operating mode, the active valve core has a second position, the first conducting channel is connected to the compressor suction valve port and at least one of the other part of the second heat exchange ports, the second conducting channel is connected to the remaining valve ports, the second heat exchange part connected to at least one of the other part of the second heat exchange ports is in the evaporation state, and the remaining second heat exchange parts and the first heat exchanger are in the condensation state.

13. The air conditioning system according to claim 11, characterized in that, The air conditioning system also has a third operating mode, and the air conditioning system can switch between the first operating mode and the third operating mode; When the air conditioning system is in the third operating mode, the active valve core has a third position, the first conducting channel connects the compressor intake valve port and the first heat exchange port, the second conducting channel connects the compressor exhaust valve port and all the second heat exchange ports, the first heat exchanger is in the evaporation state, and all the second heat exchange sections are in the condensation state.

14. The air conditioning system according to claim 11, characterized in that, The air conditioning system also has a fourth operating mode, and the air conditioning system can switch between the first operating mode and the fourth operating mode; When the air conditioning system is in the fourth operating mode, the active valve core has a fourth position, the first conducting channel connects the compressor intake valve port and all the second heat exchange ports, the second conducting channel connects the compressor exhaust valve port and the first heat exchange port, all the second heat exchange sections are in the evaporation state, and the first heat exchanger is in the condensation state.

15. The air conditioning system according to claim 11, characterized in that, The number of the first heat exchange ports is at least two, the first heat exchanger includes at least two first heat exchange parts, the at least two first heat exchange parts and at least two first heat exchange ports are correspondingly connected, the air conditioning system also has a fifth operating mode, the air conditioning system can switch between the first operating mode and the fifth operating mode; When the air conditioning system is in the fifth operating mode, the active valve core has a fifth position. The first conducting channel connects the compressor suction valve port and a portion of the first heat exchange port, and the second conducting channel connects the remaining valve ports. The first heat exchange section connected to a portion of the first heat exchange port is in an evaporation state, and the remaining first heat exchange sections and all of the second heat exchange sections are in a condensation state.

16. The air conditioning system according to claim 15, characterized in that, The air conditioning system also has a sixth operating mode, and the air conditioning system can switch between the first operating mode, the fifth operating mode and the sixth operating mode; When the air conditioning system is in the sixth operating mode, the active valve core has a sixth position. The first conducting channel connects to the compressor suction valve port and at least one of the first heat exchange ports in another part of the first heat exchange ports. The second conducting channel connects to the remaining valve ports. The first heat exchange section connected to at least one of the first heat exchange ports in another part of the first heat exchange ports is in an evaporation state, and the remaining first heat exchange sections and all the second heat exchange sections are in a condensation state.

17. The air conditioning system according to any one of claims 11-16, characterized in that, The air conditioning system has at least two branches at the second heat exchanger, and each branch is connected in series with a second heat exchange unit. The at least two branches are connected to at least two second heat exchange ports in a one-to-one correspondence. The air conditioning system has a main circuit at the first heat exchanger, the first heat exchanger is connected in series on the main circuit, one end of the main circuit is connected to the first heat exchange port, and the other end is connected to all the branch circuits; The throttling device includes a main throttling element and at least one branch throttling element, wherein the main throttling element is connected in series on the main line, and at least one branch throttling element is connected in series on the branch line.

18. The air conditioning system according to claim 17, characterized in that, The main throttling device is an electronic expansion valve with adjustable opening, and the branch throttling device is a capillary tube or an expansion valve.

19. The air conditioning system according to any one of claims 11-16, characterized in that, The air conditioning system also includes an outdoor unit, and the second heat exchanger is an outdoor heat exchanger. The second heat exchanger is installed inside the outdoor unit, and at least two second heat exchange units are arranged sequentially along the height direction or along the front-to-back direction.

20. The air conditioning system according to any one of claims 11-16, characterized in that, The air conditioning system also includes an indoor unit, and the second heat exchanger is an indoor heat exchanger. The second heat exchanger is disposed inside the indoor unit, and at least two second heat exchange sections are arranged sequentially along the height direction or along the front-to-back direction.

21. The air conditioning system according to any one of claims 11-16, characterized in that, The air conditioning system further includes at least two indoor air conditioning units, at least two second heat exchange units are disposed in the at least two indoor air conditioning units, and at least one of the indoor units is provided with two second heat exchange units.

22. The air conditioning system according to claim 15 or 16, characterized in that, The air conditioning system further includes an indoor unit and an outdoor unit. The first heat exchanger is an indoor heat exchanger, which is installed inside the indoor unit. At least two of the first heat exchange units are arranged sequentially along the height direction or along the front-back direction. The second heat exchanger is an outdoor heat exchanger, which is installed inside the outdoor unit. At least two of the second heat exchange units are arranged sequentially along the height direction or along the front-back direction.

23. The air conditioning system according to claim 15 or 16, characterized in that, The air conditioning system further includes an indoor unit and an outdoor unit. The first heat exchanger is an outdoor heat exchanger, which is installed inside the outdoor unit. At least two of the first heat exchange units are arranged sequentially along the height direction or along the front-to-back direction. The second heat exchanger is an indoor heat exchanger, which is installed inside the indoor unit. At least two of the second heat exchange units are arranged sequentially along the height direction or along the front-to-back direction.

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