Multi-way valve for refrigerant, heat management system and vehicle

Abstract

The utility model relates to a multi-way valve for refrigerants, a heat management system and a vehicle. The multi-way valve for the refrigerants comprises a valve body and a valve element. The valve element is rotatably connected to the valve body, valve ports are formed in the valve body, and the valve ports comprise the first valve port, the second valve port, the third valve port and the fourth valve port; the valve element is arranged to be capable of selectively communicating the first valve port with one or two of the second valve port, the third valve port and the fourth valve port. According to the multi-way valve, switching of the flow direction of a refrigerant can be achieved, multi-direction flow dividing of the refrigerant can be controlled, flow dividing of the refrigerant is achieved, the multi-way valve can serve as multiple valve functions, for example, heating or refrigerating can be achieved, meanwhile, a battery is heated, and the low-temperature working condition is coped, and multiple working modes are achieved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of valve structures, and in particular to a multi-way valve for refrigerant, a thermal management system, and a vehicle. Background Art

[0002] In related technologies, the valve bodies used for refrigerants are mostly single-function valve bodies. If it is necessary to connect more devices in the thermal management system to realize multiple functions, multiple valve bodies need to be used in combination, resulting in a large number of valve bodies, larger occupied space, and higher costs. Utility Model Content

[0003] The purpose of the present disclosure is to provide a multi-way valve for refrigerant, a thermal management system and a vehicle to solve the problems in the above-mentioned related art.

[0004] In order to achieve the above-mentioned object, one aspect of the present disclosure provides a multi-way valve for refrigerant, comprising a valve body and a valve core;

[0005] The valve core is rotatably connected to the valve body, and the valve body is provided with valve ports, which include a first valve port, a second valve port, a third valve port and a fourth valve port;

[0006] The valve core is configured to selectively connect the first valve port to one or both of the second valve port, the third valve port, and the fourth valve port.

[0007] Optionally, the valve core is configured to selectively connect the first valve port to one of the second valve port, the third valve port, and the fourth valve port; or,

[0008] The valve core is configured to selectively connect the first valve port with two of the second valve port, the third valve port and the fourth valve port and to adjust the degree of connection. The multi-way valve has a first state, a second state and a third state. In the first state, the first valve port is simultaneously connected to the second valve port and the third valve port. In the second state, the first valve port is simultaneously connected to the third valve port and the fourth valve port. In the third state, the first valve port is simultaneously connected to the second valve port and the fourth valve port.

[0009] Optionally, in the first state, the valve core has a plurality of first positions, and the valve core is configured to be positioned at different first positions to change the degree of communication between the first valve port and the second valve port and the third valve port respectively;

[0010] In the second state, the valve core has a plurality of second positions, and the valve core is configured to be able to be located at different second positions to change the degree of communication between the first valve port and the third valve port and the fourth valve port respectively;

[0011] In the third state, the valve core has a plurality of third positions, and the valve core is configured to be located at different third positions to change the degree of communication between the first valve port and the second valve port and the fourth valve port.

[0012] Optionally, the second valve port, the third valve port and the fourth valve port are arranged at intervals around the first valve port.

[0013] Optionally, the first valve port is located at the axis of the valve body, the first valve port, the second valve port, the third valve port and the fourth valve port are located in a radial plane, and the second valve port, the third valve port and the fourth valve port are arranged at equal intervals.

[0014] Optionally, the second valve port, the third valve port and the fourth valve port are configured as a rectangle, a trapezoid or a rhombus.

[0015] Optionally, the valve core is provided with a guide channel, the guide channel is communicated with the first valve port, and the guide channel is communicated with one or both of the second valve port, the third valve port and the fourth valve port.

[0016] Optionally, the valve body is constructed as a shell, a valve cavity is provided in the valve body, the valve core is rotatably connected to the valve cavity, the valve port is opened in the valve body and communicates with the valve cavity, the valve core is constructed as a spherical, cylindrical or disc-shaped, and the guide channel is constructed as a channel penetrating the valve core; or,

[0017] The valve body is constructed as a first disk body, the valve core is constructed as a second disk body, the first disk body and the second disk body are stacked along the axial direction, the valve port is constructed as an opening passing through the first disk body, and the guide channel is constructed as a groove opened on a side of the second disk body facing the first disk body.

[0018] A second aspect of the present disclosure further provides a thermal management system, comprising the above-mentioned multi-way valve for refrigerant.

[0019] Optionally, the thermal management system also includes a compressor, a first condenser, a second condenser and a gas-liquid separator, the first valve port of the multi-way valve is connected to the outlet of the compressor, the second valve port is connected to the inlet of the first condenser, the third valve port is connected to the inlet of the second condenser, and the fourth valve port is connected to the inlet of the gas-liquid separator.

[0020] A third aspect of the present disclosure further provides a vehicle, comprising the above-mentioned multi-way valve for refrigerant, or the above-mentioned thermal management system.

[0021] The above technical solution can connect the first valve port to the second valve port, the third valve port, and the fourth valve port as needed to switch the refrigerant flow direction. It can be connected to a variety of devices and is applicable to heat pump systems, capable of both cooling and heating. In addition, the first valve port can be connected to the second valve port, the third valve port, and the fourth valve port as needed to control the multi-directional diversion of the refrigerant, achieving refrigerant diversion to two related devices. This allows the multi-way valve to serve multiple valve functions, such as heating or cooling while heating the battery and coping with low-temperature conditions, thus realizing multiple operating modes.

[0022] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following detailed description, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0024] Figure 1 is a perspective schematic diagram of a multi-way valve according to an embodiment of the present disclosure;

[0025] Figure 2 1 is a schematic diagram of the internal structure of a multi-way valve according to an embodiment of the present disclosure;

[0026] Figure 3 is a perspective schematic diagram of a multi-way valve according to another embodiment of the present disclosure;

[0027] Figure 4 1 is a schematic structural diagram of a valve core of a multi-way valve according to another embodiment of the present disclosure;

[0028] Figure 5 Schematic diagram of the thermal management system according to an embodiment of the present invention.

[0029] Description of Reference Numerals

[0030] 1. valve body, 11. housing, 12. valve chamber, 13. first disc;

[0031] 2. valve core, 21. flow guide channel, 22. second disk;

[0032] 3. Valve port, 31. First valve port, 32. Second valve port, 33. Third valve port, 34. Fourth valve port;

[0033] 100. Compressor, 101. First condenser, 102. Second condenser, 103. Gas-liquid separator, 104. Evaporator, 105. Cooler, 106. Multi-way valve. DETAILED DESCRIPTION

[0034] The following describes the specific embodiments of the present disclosure in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure and are not intended to limit the present disclosure.

[0035] In this disclosure, unless otherwise indicated, directional terms such as "upper," "lower," "left," and "right" are generally defined relative to the drawing plane of the accompanying drawings, and "inner" and "outer" refer to the inside and outside of the relevant component. Furthermore, the terms "first," "second," and the like are used solely for purposes of distinction and are not to be construed as indicating or implying relative importance.

[0036] It should also be noted that, in the description of this disclosure, unless otherwise expressly specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they may refer to a fixed connection, a detachable connection, or an integral connection. They may be directly connected or indirectly connected through an intermediate medium, or they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this disclosure based on specific circumstances.

[0037] With the development of new energy vehicles, in order to improve the vehicle's endurance in winter, more and more vehicles are equipped with heat pump systems. The thermal management system with a heat pump system needs to switch between cooling and heating.

[0038] In related technologies, the valve bodies used for refrigerants are mostly single-function valve bodies. If it is necessary to connect more devices in the thermal management system to realize multiple functions, multiple valve bodies need to be used in combination, resulting in a large number of valve bodies, larger occupied space, and higher costs.

[0039] For this reason, Figures 1-4 As shown, one aspect of the present disclosure provides a multi-way valve for refrigerant, comprising a valve body 1 and a valve core 2 .

[0040] The valve core 2 is rotatably connected to the valve body 1 . The valve body 1 is provided with valve ports 3 . The valve ports 3 include a first valve port 31 , a second valve port 32 , a third valve port 33 and a fourth valve port 34 .

[0041] The valve core 2 is configured to selectively connect the first valve port 31 to one or both of the second valve port 32 , the third valve port 33 and the fourth valve port 34 .

[0042] The valve core 2 can rotate relative to the valve body 1 to switch the conduction relationship between the valve core 2 and the first valve port 31 , the second valve port 32 , the third valve port 33 and the fourth valve port 34 .

[0043] The above technical solution can connect the first valve port 31 with one of the second valve port 32, the third valve port 33, and the fourth valve port 34 as needed to switch the refrigerant flow direction. It can be connected to a variety of devices and is applicable to heat pump systems, capable of both cooling and heating. In addition, the first valve port 31 can be connected with two of the second valve port 32, the third valve port 33, and the fourth valve port 34 as needed to control the multi-directional diversion of the refrigerant, achieving refrigerant diversion and flowing to two related devices. In this way, the multi-way valve 106 can serve as a variety of valve functions, such as heating or cooling while heating the battery and coping with low-temperature conditions, thus realizing multiple operating modes.

[0044] Optionally, in one embodiment of the present disclosure, the valve core 2 is configured to selectively connect the first valve port 31 to one of the second valve port 32, the third valve port 33, and the fourth valve port 34. By such a configuration, the multi-way valve 106 can be used as a common four-way valve. That is, when the first valve port 31 is connected to the second valve port 32, the third valve port 33 and the fourth valve port 34 are in a cut-off state, and the refrigerant does not circulate. Similarly, when the first valve port 31 is connected to the third valve port 33, the second valve port 32 and the fourth valve port 34 are in a cut-off state. When the first valve port 31 is connected to the fourth valve port 34, the second valve port 32 and the third valve port 33 are in a cut-off state.

[0045] Optionally, in another embodiment of the present disclosure, the valve core 2 is configured to selectively connect the first valve port 31 to two of the second valve port 32, the third valve port 33, and the fourth valve port 34 and to adjust the degree of connection. The multi-way valve 106 has a first state, a second state, and a third state. In the first state, the first valve port 31 is simultaneously connected to the second valve port 32 and the third valve port 33. In the second state, the first valve port 31 is simultaneously connected to the third valve port 33 and the fourth valve port 34. In the third state, the first valve port 31 is simultaneously connected to the second valve port 32 and the fourth valve port 34. By configuring in this way, the multi-way valve 106 can be used as a conventional four-way valve to control the multi-directional diversion of the refrigerant, and can be used as a proportional valve or an expansion valve to change the pressure of the refrigerant, which can facilitate the phase change of the refrigerant.

[0046] In the first state, the first valve port 31 is simultaneously connected to the second valve port 32 and the third valve port 33. At this time, the valve core 2 can be adjusted to adjust the degree of connection between the first valve port 31 and the second valve port 32 and / or the degree of connection between the first valve port 31 and the third valve port 33 as needed, thereby adjusting the refrigerant flow rate. In other words, in the first state, the first valve port 31 and the second valve port 32 can be fully connected, and only the degree of connection between the first valve port 31 and the third valve port 33 can be adjusted, or vice versa. Furthermore, the degree of connection between the first valve port 31 and the second valve port 32 and the degree of connection between the first valve port 31 and the third valve port 33 can also be adjusted simultaneously.

[0047] In the second state, the first valve port 31 is in communication with both the third valve port 33 and the fourth valve port 34. Adjustment of the valve core 2 allows the degree of communication between the first valve port 31 and the third valve port 33 and / or between the first valve port 31 and the fourth valve port 34 to be varied as needed, thereby adjusting the refrigerant flow rate. In other words, in the second state, the first valve port 31 and the third valve port 33 can be fully in communication, with only the communication between the first valve port 31 and the fourth valve port 34 being adjusted. Alternatively, the reverse can be true. Furthermore, the communication between the first valve port 31 and the third valve port 33 and the communication between the first valve port 31 and the fourth valve port 34 can be adjusted simultaneously.

[0048] In the third state, the first valve port 31 is in communication with both the second valve port 32 and the fourth valve port 34. Adjustment of the valve core 2 allows the degree of communication between the first valve port 31 and the second valve port 32, as well as between the first valve port 31 and the fourth valve port 34, to be varied as needed, thereby adjusting the refrigerant flow rate. In other words, in the third state, the first valve port 31 and the second valve port 32 can be fully in communication, with only the communication between the first valve port 31 and the fourth valve port 34 being adjusted. Alternatively, the reverse can be true. Furthermore, the communication between the first valve port 31 and the second valve port 32 and the communication between the first valve port 31 and the fourth valve port 34 can be adjusted simultaneously.

[0049] Optionally, in one embodiment of the present disclosure, in the first state, the valve core 2 has multiple first positions, and the valve core 2 is configured to be able to be located in different first positions to change the degree of communication between the first valve port 31 and the second valve port 32 and the third valve port 33. By varying the first positions of the valve core 2, the blocked area of the second valve port 32 and / or the third valve port 33 can be varied. That is, when the position of the valve core 2 relative to the second valve port 32 and / or the third valve port 33 changes, and when the blocked area of the second valve port 32 and / or the third valve port 33 changes, the flow rate of the refrigerant changes.

[0050] In the second state, the valve core 2 has multiple second positions. The valve core 2 is configured to be positioned at different second positions to change the degree of communication between the first valve port 31 and the third valve port 33 and the fourth valve port 34. By varying the second positions of the valve core 2, the blocked area of the third valve port 33 and / or the fourth valve port 34 can be varied. In other words, as the position of the valve core 2 relative to the third valve port 33 and / or the fourth valve port 34 changes, the flow rate of the refrigerant changes as the blocked area of the third valve port 33 and / or the fourth valve port 34 changes.

[0051] In the third state, the valve core 2 has multiple third positions. The valve core 2 is configured to be positioned at different third positions to change the degree of communication between the first valve port 31 and the second valve port 32 and the fourth valve port 34. By varying the third positions of the valve core 2, the blocked area of the second valve port 32 and / or the fourth valve port 34 can be varied. In other words, as the position of the valve core 2 relative to the second valve port 32 and / or the fourth valve port 34 changes, the flow rate of the refrigerant changes as the blocked area of the second valve port 32 and / or the fourth valve port 34 changes.

[0052] Optionally, in one embodiment of the present disclosure, the second valve port 32, the third valve port 33, and the fourth valve port 34 are spaced apart around the first valve port 31. This arrangement facilitates the valve core 2 in controlling the flow of the second valve port 32, the third valve port 33, and the fourth valve port 34 relative to the first valve port 31. In other words, as the valve core 2 rotates, the obstruction of the second valve port 32, the third valve port 33, and the fourth valve port 34 can be rapidly changed, making it easier to control the flow of the valve port. The rotational travel is also easier to control, thereby improving the control efficiency of the multi-way valve 106.

[0053] Optionally, in another embodiment of the present disclosure, the first valve port 31 is located on one side of the valve body 1 , and the second valve port 32 , the third valve port 33 and the fourth valve port 34 are located on the other side of the valve body 1 .

[0054] Optionally, in one embodiment of the present disclosure, the first valve port 31 is located at the axis of the valve body 1, and the first valve port 31, the second valve port 32, the third valve port 33, and the fourth valve port 34 are located in a radial plane, and the second valve port 32, the third valve port 33, and the fourth valve port 34 are arranged at equal intervals. Through such an arrangement, the valve core 2 can be arranged coaxially with the valve body 1, and the valve core 2 rotates around the axis of the valve body 1, which can keep the first valve port 31 in a conductive state at all times, and only needs to control whether the second valve port 32, the third valve port 33, and the fourth valve port 34 are conductive, which makes operation more convenient. At the same time, the first valve port 31, the second valve port 32, the third valve port 33, and the fourth valve port 34 are located in a radial plane, and the valve core 2 can be controlled by a motor to rotate axially to achieve refrigerant flow direction and flow adjustment, which is simple and efficient to control and has low manufacturing cost.

[0055] Optionally, in one embodiment of the present disclosure, the second valve port 32, the third valve port 33, and the fourth valve port 34 are constructed in a rectangular, trapezoidal, or diamond shape. This configuration can facilitate the adjustment of the blocking area of the second valve port 32, the third valve port 33, and the fourth valve port 34, thereby adjusting the flow rate of the refrigerant. Among them, the first valve port 31 can be used as a refrigerant inlet, and the second valve port 32, the third valve port 33, and the fourth valve port 34 can be used as a refrigerant outlet. Therefore, when the flow rate of the refrigerant flowing through the second valve port 32, the third valve port 33, and the fourth valve port 34 changes, the pressure of the refrigerant can be changed, so that the multi-way valve 106 can function as an expansion valve, which is beneficial for the refrigerant to achieve phase change.

[0056] Optionally, in some examples, the first valve port 31 is circular. This arrangement facilitates the valve core 2 to maintain communication with the first valve port 31 during rotation, so that the first valve port 31 is not blocked.

[0057] Optionally, in one embodiment of the present disclosure, the valve core 2 is provided with a guide channel 21, which is in communication with the first valve port 31 and is in communication with one or both of the second valve port 32, the third valve port 33, and the fourth valve port 34. The provided guide channel 21 facilitates switching the communication relationship between the first valve port 31 and the second valve port 32, the third valve port 33, and the fourth valve port 34, respectively, thereby achieving switching between different operating states of the multi-way valve 106. The guide channel 21 is used to allow the refrigerant to flow through.

[0058] In some examples, there is one guide channel 21, one end of which is always in communication with the first valve port 31, and the other end of which is respectively in communication with the second valve port 32, the third valve port 33, and the fourth valve port 34 under the rotation of the valve core 2. The other end of the guide channel 21 can be in communication with two of the second valve port 32, the third valve port 33, and the fourth valve port 34 at the same time.

[0059] Optionally, in one embodiment of the present disclosure, the valve body 1 is configured as a housing 11, a valve cavity 12 is provided in the valve body 1, the valve core 2 is rotatably connected to the valve cavity 12, the valve port 3 is provided in the valve body 1 and communicates with the valve cavity 12, the valve core 2 is configured as a spherical, cylindrical, or disc-shaped, and the flow guide channel 21 is configured as a channel extending through the valve core 2. This configuration allows the valve core 2 to rotate within the valve body 1, and the valve body 1 can protect the valve core 2.

[0060] The channel is located within the valve core 2, and there is only one channel. That is, the first end opening of the channel is used to communicate with the first valve port 31, and the second end opening of the channel is used to communicate with the second valve port 32, the third valve port 33, and the fourth valve port 34. The first end opening of the channel is located at the top or bottom of the valve core 2, and the second end opening of the channel is located on the side wall of the valve core 2. Therefore, when the valve core 2 rotates, the position of the second end opening of the channel can be changed, realizing the switching of the communication between the second valve port 32, the third valve port 33, and the fourth valve port 34.

[0061] In some examples, the valve core 2 is configured as a spherical shape, and the first valve port 31 and the second valve port 32 , the third valve port 33 , and the fourth valve port 34 may not be located in the same radial plane.

[0062] In other examples, the valve core 2 is cylindrical or disc-shaped, and the first valve port 31, the second valve port 32, the third valve port 33, and the fourth valve port 34 may or may not be located in the same radial plane. When the valve core 2 is cylindrical, its axis is perpendicular to the radial plane, and the first valve port 31 is located on the axis of the valve core 2, thereby allowing the valve core 2 to rotate about its own axis. When the valve core 2 is disc-shaped, the first valve port 31, the second valve port 32, the third valve port 33, and the fourth valve port 34 may be located in the same radial plane, with the valve core 2 parallel to the radial plane, allowing the valve core 2 to rotate about its own axis.

[0063] Alternatively, in another embodiment of the present disclosure, the valve body 1 is configured as a first disc 13, and the valve core 2 is configured as a second disc 22. The first disc 13 and the second disc 22 are stacked along the axial direction. The valve port 3 is configured as an opening extending through the first disc 13, and the flow guide channel 21 is configured as a groove formed on a side of the second disc 22 facing the first disc 13. This arrangement can reduce the volume occupied by the multi-way valve 106. After the first disc 13 and the second disc 22 are stacked, as the valve core 2 rotates, the flow guide channel 21 can be connected to the opening of the stacked valve body 1, or the opening of the valve body 1 can be blocked by the second disc 22.

[0064] In some examples, the first disk 13 may be located above the second disk 22 , or vice versa. The diameters of the first disk 13 and the second disk 22 may be equal or unequal.

[0065] It is understood that the second plate 22 has a groove on the side facing the first plate 13, the notch of which can be covered by the first plate 13. When the opening in the first plate 13, namely the valve port 3, is connected to the notch of the groove, refrigerant can flow. Of course, it should be noted that the first plate 13 can also be provided with other connection interfaces and other structures for connecting to external pipelines, and can also be provided with sealing structures, etc., without further limitation here.

[0066] like Figure 5 As shown, the second aspect of the present disclosure further provides a thermal management system, comprising the above-mentioned multi-way valve for refrigerant.

[0067] Optionally, in one embodiment of the present disclosure, the thermal management system also includes a compressor 100, a first condenser 101, a second condenser 102 and a gas-liquid separator 103, the first valve port 31 of the multi-way valve 106 is connected to the outlet of the compressor 100, the second valve port 32 is connected to the inlet of the first condenser 101, the third valve port 33 is connected to the inlet of the second condenser 102, and the fourth valve port 34 is connected to the inlet of the gas-liquid separator 103.

[0068] The first condenser 101 is an indoor condenser, and the second condenser 102 is a water-cooled condenser or an outdoor condenser. The water-cooled condenser can be connected to a water-side heat exchange device, such as a battery heat exchanger.

[0069] The thermal management system may also include an evaporator 104 and a cooler 105. The inlets of the evaporator 104 and the cooler 105 may be connected to the outlets of the first condenser 101 and the second condenser 102 respectively. The outlets of the evaporator 104 and the cooler 105 are connected to the inlet of the gas-liquid separator 103. The outlet of the gas-liquid separator 103 is connected to the inlet of the compressor 100.

[0070] The thermal management system can have multiple working modes. In the first working mode, that is, the conventional heating mode, the first valve port 31 and the second valve port 32 of the multi-way valve 106 are connected, and the third valve port 33 and the fourth valve port 34 are not connected.

[0071] In the second operating mode, i.e., the normal cooling mode, the first valve port 31 and the third valve port 33 of the multi-way valve 106 are connected, while the second valve port 32 and the fourth valve port 34 are not connected. Connecting the water-cooled condenser to the battery heat exchanger can also achieve battery heating.

[0072] In the third working mode, conventional heating and battery heating mode, the first valve port 31 of the multi-way valve 106 is connected to the second valve port 32 and the third valve port 33, and the fourth valve port 34 is not connected. The degree of conduction between the first valve port 31 and the second valve port 32 and the third valve port 33 can be adjusted to realize refrigerant distribution, which can realize passenger compartment heating. At the same time, the water-cooled condenser is connected to the battery heat exchanger to realize battery heating.

[0073] In the fourth working mode, the hot gas bypass and heating mode, the first valve port 31 of the multi-way valve 106 is connected to the second valve port 32 and the fourth valve port 34, and the third valve port 33 is not connected. The degree of conduction between the first valve port 31 and the second valve port 32 and the fourth valve port 34 can be adjusted respectively to realize refrigerant distribution, which can realize heating of the passenger compartment. At the same time, the refrigerant can be quickly guided back to the gas-liquid separator 103 to realize heat creation of the compressor 100, which is applied to extremely low temperature working conditions.

[0074] In the fifth working mode, the hot gas bypass and battery heating mode, the first valve port 31 of the multi-way valve 106 is connected to the third valve port 33 and the fourth valve port 34, and the second valve port 32 is not connected. The degree of conduction between the first valve port 31 and the third valve port 33 and the fourth valve port 34 can be adjusted to achieve refrigerant distribution. At the same time, the water-cooled condenser is connected to the battery heat exchanger to achieve battery heating. Then the refrigerant can be quickly guided back to the gas-liquid separator 103 to achieve heat creation by the compressor 100, which is applied to extremely low temperature conditions.

[0075] A third aspect of the present disclosure further provides a vehicle, comprising the above-mentioned multi-way valve for refrigerant, or the above-mentioned thermal management system.

[0076] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details of the above embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the scope of protection of the present disclosure.

[0077] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0078] In addition, the various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A multi-way valve for refrigerant, characterized in that: Including valve body and valve core; The valve core is rotatably connected to the valve body, and the valve body is provided with valve ports, which include a first valve port, a second valve port, a third valve port and a fourth valve port; The valve core is configured to selectively connect the first valve port to one or both of the second valve port, the third valve port, and the fourth valve port.

2. The multi-way valve for refrigerant according to claim 1, characterized in that: The valve core is configured to selectively connect the first valve port to one of the second valve port, the third valve port, and the fourth valve port; or The valve core is configured to selectively connect the first valve port with two of the second valve port, the third valve port and the fourth valve port and to adjust the degree of connection. The multi-way valve has a first state, a second state and a third state. In the first state, the first valve port is simultaneously connected to the second valve port and the third valve port. In the second state, the first valve port is simultaneously connected to the third valve port and the fourth valve port. In the third state, the first valve port is simultaneously connected to the second valve port and the fourth valve port.

3. The multi-way valve for refrigerant according to claim 2, characterized in that: In the first state, the valve core has a plurality of first positions, and the valve core is configured to be able to be located at different first positions to change the degree of communication between the first valve port and the second valve port and the third valve port respectively; In the second state, the valve core has a plurality of second positions, and the valve core is configured to be able to be located at different second positions to change the degree of communication between the first valve port and the third valve port and the fourth valve port respectively; In the third state, the valve core has a plurality of third positions, and the valve core is configured to be located at different third positions to change the degree of communication between the first valve port and the second valve port and the fourth valve port.

4. The multi-way valve for refrigerant according to claim 1, characterized in that: The second valve port, the third valve port and the fourth valve port are arranged around the first valve port at intervals.

5. The multi-way valve for refrigerant according to claim 4, characterized in that: The first valve port is located at the axis of the valve body, the first valve port, the second valve port, the third valve port and the fourth valve port are located in a radial plane, and the second valve port, the third valve port and the fourth valve port are arranged at equal intervals.

6. The multi-way valve for refrigerant according to claim 1, characterized in that: The second valve port, the third valve port, and the fourth valve port are configured in a rectangular, trapezoidal, or rhombus shape.

7. The multi-way valve for refrigerant according to any one of claims 1 to 6, characterized in that: The valve core is provided with a guide channel, the guide channel is communicated with the first valve port, and the guide channel is communicated with one or both of the second valve port, the third valve port and the fourth valve port.

8. The multi-way valve for refrigerant according to claim 7, characterized in that: The valve body is constructed as a shell, a valve cavity is provided in the valve body, the valve core is rotatably connected to the valve cavity, the valve port is opened in the valve body and communicates with the valve cavity, the valve core is constructed as a spherical, cylindrical or disc-shaped, and the guide channel is constructed as a channel penetrating the valve core; or, The valve body is constructed as a first disk body, the valve core is constructed as a second disk body, the first disk body and the second disk body are stacked along the axial direction, the valve port is constructed as an opening passing through the first disk body, and the guide channel is constructed as a groove opened on a side of the second disk body facing the first disk body.

9. A thermal management system, characterized in that: The multi-way valve for refrigerant comprises the multi-way valve for refrigerant according to any one of claims 1 to 8.

10. The thermal management system according to claim 9, characterized in that: The thermal management system also includes a compressor, a first condenser, a second condenser and a gas-liquid separator. The first valve port of the multi-way valve is connected to the outlet of the compressor, the second valve port is connected to the inlet of the first condenser, the third valve port is connected to the inlet of the second condenser, and the fourth valve port is connected to the inlet of the gas-liquid separator.

11. A vehicle, characterized in that: The invention comprises a multi-way valve for refrigerant according to any one of claims 1 to 8, or a thermal management system according to claim 9 or 10.

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