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 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 and the third valve port; the valve element is arranged in the mode that the first valve port can be partially communicated, and / or the second valve port can be completely communicated or cut off, and / or the third valve port can be completely communicated or cut off. According to the multi-way valve, one valve can be connected with a plurality of pipelines, meanwhile, the multi-purpose effect of one valve can be achieved, the existing matching mode of a stop valve and an expansion valve can be replaced, the space occupied by the valve is reduced, meanwhile, the number of the valves is reduced, and cost is reduced.

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 the thermal management system using a series heat pump system in the related art, a stop valve and an expansion valve are often required to cooperate to achieve flow direction adjustment, resulting in the valve occupying a large space and high cost. 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 and a third valve port;

[0006] The valve core is configured to partially open the first valve port, and / or to fully open or cut off the second valve port, and / or to fully open or cut off the third valve port;

[0007] The multi-way valve includes a first state and a second state. In the first state, the first valve port is partially open, the second valve port is fully open, and the third valve port is cut off. In the second state, the first valve port is partially open, the second valve port is fully open, and the third valve port is fully open.

[0008] Optionally, 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 the plurality of first positions to change the degree of conduction between the first valve port and the second valve port;

[0009] 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 the plurality of second positions to change the degree of conduction between the first valve port and the second valve port.

[0010] Optionally, an area of ​​the first valve port is smaller than an area of ​​the second valve port.

[0011] Optionally, the first valve port is configured as a diamond structure.

[0012] Optionally, the valve core is further configured to be able to open or close all of the first valve ports, and the multi-way valve further includes a third state, a fourth state, a fifth state and a sixth state;

[0013] In the third state, the first valve port and the third valve port are both not connected to the second valve port, and the first valve port and the third valve port are not connected. In the fourth state, the second valve port and the third valve port are fully connected, and the first valve port is cut off. In the fifth state, the first valve port and the third valve port are fully connected, and the second valve port is cut off. In the sixth state, the first valve port and the second valve port are fully connected, and the third valve port is cut off.

[0014] Optionally, the second valve port is located between the first valve port and the third valve port, and a straight-line distance between the first valve port and the third valve port is smaller than a straight-line distance between the second valve port and the first valve port or the third valve port.

[0015] Optionally, the first valve port, the second valve port and the third valve port are distributed in an annular pattern around the axis of the valve body, and the center lines of the first valve port, the second valve port and the third valve port intersect at one point;

[0016] A first angle is formed between the center line of the first valve port and the center line of the second valve port, a second angle is formed between the center line of the first valve port and the center line of the third valve port, and a third angle is formed between the center line of the second valve port and the center line of the third valve port;

[0017] The second angle is smaller than the first angle or the third angle.

[0018] Optionally, the angle of the first angle and the angle of the third angle are 120°-180°, and the angle of the second angle is 30°-80°.

[0019] Optionally, the valve core is provided with a guide channel, the guide channel is communicated with the second valve port, and the guide channel can selectively communicate with the first valve port and the third valve port.

[0020] Optionally, the valve body is constructed as a shell, a valve cavity is arranged in the valve body, the valve core is rotatably connected in the valve cavity, the valve port is opened on the side wall of 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,

[0021] The valve body is configured as a first disk body, the valve core is configured as a second disk body, the first disk body and the second disk body are stacked along the axial direction, the valve port is configured as an opening penetrating the first disk body, and the guide channel is configured as a groove opened on a side of the second disk body facing the first disk body.

[0022] A second aspect of the present disclosure further provides a thermal management system, comprising the above-mentioned multi-way valve for refrigerant.

[0023] Optionally, the multi-way valve includes a first multi-way valve, and the thermal management system further includes a compressor, a gas-liquid separator, an outdoor heat exchanger and a condenser;

[0024] Among them, the outlet of the compressor is connected to the inlet of the condenser and the first valve port of the first multi-way valve, the outlet of the condenser is connected to the inlet of the outdoor heat exchanger, the outlet of the outdoor heat exchanger is connected to the third valve port of the first multi-way valve, and the second valve port of the first multi-way valve is connected to the inlet of the gas-liquid separator.

[0025] Optionally, the multi-way valve also includes a second multi-way valve, and the thermal management system also includes an evaporator and a battery cooler, the first valve port of the second multi-way valve is connected to the inlet of the outdoor heat exchanger, the second valve port of the second multi-way valve is connected to the outlet of the condenser, the third valve port of the second multi-way valve and the outlet of the outdoor heat exchanger are both connected to the inlet of the evaporator and the inlet of the battery cooler, and the outlet of the evaporator and the outlet of the battery cooler are both connected to the inlet of the gas-liquid separator.

[0026] Optionally, the multi-way valve also includes a third multi-way valve, a first valve port of the third multi-way valve is connected to the inlet of the battery cooler, a second valve port of the third multi-way valve is connected to the third valve port of the second multi-way valve and the inlet of the evaporator, and a third valve port of the third multi-way valve is connected to the outlet of the outdoor heat exchanger.

[0027] A third aspect of the present disclosure also provides a vehicle, comprising the above-mentioned multi-way valve for refrigerant, or the above-mentioned thermal management system.

[0028] The above technical solution, through the coordination of the first valve port, the second valve port and the third valve port with the valve core, can apply the multi-way valve as a general switch valve or a stop valve, can realize the simple switching of the refrigerant flow direction, and can also apply the multi-way valve as an expansion valve or a proportional valve, so that the pressure of the refrigerant can be adjusted, which is conducive to the phase change of the refrigerant. The multi-way valve can realize one valve connecting multiple pipelines, and can produce the effect of one valve for multiple uses, and can replace the existing combination of stop valve and expansion valve, reduce the space occupied by the valve, and reduce the number of valves, thereby reducing costs.

[0029] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] 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 specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0031] Figure 1 is a schematic diagram of the internal structure of a multi-way valve according to an embodiment of the present disclosure;

[0032] Figure 2 is a structural schematic diagram of a multi-way valve from one perspective of an embodiment of the present disclosure;

[0033] Figure 3 is a structural schematic diagram of a multi-way valve from another perspective of an embodiment of the present disclosure;

[0034] Figure 4 is a structural schematic diagram of a multi-way valve according to another embodiment of the present disclosure;

[0035] Figure 5 is a structural schematic diagram of a valve core of a multi-way valve according to another embodiment of the present disclosure;

[0036] Figure 6 is a schematic structural diagram of a thermal management system according to a first embodiment of the present disclosure;

[0037] Figure 7 is a schematic structural diagram of a thermal management system according to a second embodiment of the present disclosure;

[0038] Figure 8 Schematic diagram of the structure of a thermal management system according to a third embodiment of the present disclosure.

[0039] Description of Reference Numerals

[0040] 1. valve body, 11. housing, 12. valve chamber, 13. first disc body, 14. second disc body;

[0041] 2. valve core, 21. flow guide channel;

[0042] 3. Valve port, 31. first valve port, 32. second valve port, 33. third valve port;

[0043] 4. The first angle;

[0044] 5. Second angle;

[0045] 6. The third angle;

[0046] 100. compressor, 101. gas-liquid separator, 102. outdoor heat exchanger, 103. condenser, 104. evaporator, 105. first multi-way valve, 106. second multi-way valve, 107. third multi-way valve, 108. battery cooler. DETAILED DESCRIPTION

[0047] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0048] In the present disclosure, unless otherwise stated, directional words such as "upper, lower, left, right" are usually defined by the direction of the drawing, and "inner" and "outer" refer to the inside and outside of the relevant parts. In addition, the terms "first", "second", etc. are only used to distinguish descriptions and cannot be understood as indicating or implying relative importance.

[0049] In the description of the present disclosure, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0050] 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.

[0051] In the thermal management system using a series heat pump system in the related art, a stop valve and an expansion valve are often required to cooperate to achieve flow direction adjustment, resulting in the valve occupying a large space and high cost.

[0052] For this reason, Figure 1-Figure 5 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 .

[0053] 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 and a third valve port 33 .

[0054] The valve core 2 is configured to partially open the first valve port 31 , and / or to fully open or block the second valve port 32 , and / or to fully open or block the third valve port 33 .

[0055] The multi-way valve includes a first state and a second state. In the first state, the first valve port 31 is partially open, the second valve port 32 is fully open, and the third valve port 33 is cut off. In the second state, the first valve port 31 is partially open, the second valve port 32 is fully open, and the third valve port 33 is fully open.

[0056] Among them, in the first state and the second state of the multi-way valve, the multi-way valve can be used as an expansion valve. By partially connecting the first valve port 31 and the second valve port 32, the pressure of the refrigerant can be adjusted to make the refrigerant achieve phase change. The second valve port 32 and the third valve port 33 can be fully connected or cut off, and the flow direction of the refrigerant can be switched, so that the refrigerant flows in or out from the first valve port 31 or the third valve port 33. The second valve port 32 can also be cut off from the first valve port 31 and the third valve port 33 at the same time, that is, the refrigerant is cut off so that the refrigerant cannot flow. It should be noted that whether the first valve port 31, the second valve port 32, and the third valve port 33 are used for the inflow or outflow of the refrigerant can be determined according to the specific application scenario of the multi-way valve.

[0057] In the above technical solution, by cooperating with the valve core 2, the first valve port 31, the second valve port 32 and the third valve port 33, the multi-way valve can be used as a general switch valve or a stop valve, and a simple switching of the refrigerant flow direction can be realized. In addition, the multi-way valve can be used as an expansion valve or a proportional valve, so that the pressure of the refrigerant can be adjusted, which is conducive to the phase change of the refrigerant. The multi-way valve can realize a valve connecting multiple pipelines, and can produce a valve with multiple uses. It can replace the existing combination of a stop valve and an expansion valve, reduce the space occupied by the valve, and reduce the number of valves, thereby reducing costs.

[0058] Optionally, in an embodiment of the present disclosure, in the first state, the valve core 2 has a plurality of first positions, and the valve core 2 is configured to be able to be located at the plurality of first positions to change the degree of conduction between the first valve port 31 and the second valve port 32;

[0059] In the second state, the valve core 2 has a plurality of second positions, and the valve core 2 is configured to be located at the plurality of second positions to change the degree of conduction between the first valve port 31 and the second valve port 32. By configuring in this way, the degree of conduction between the first valve port 31 and the second valve port 32 can be adjusted, and the pressure regulation of the refrigerant can be better achieved.

[0060] In some examples, the multiple first positions and multiple second positions of the valve core 2 may have different changes in the blocking area of ​​the first valve port 31, that is, the position of the valve core 2 relative to the first valve port 31 changes, and when the blocked area of ​​the first valve port 31 changes, the flow rate of the refrigerant changes, and the pressure regulation of the refrigerant is achieved. It should be noted that since the states of the third valve port 33 are different in the first state and the second state, the first position and the second position of the valve core 2 are different, and the blocking conditions of the valve core 2 for the third valve port 33 are different. In some examples, the second valve port 32 is the refrigerant outlet, and the first valve port 31 is the refrigerant inlet.

[0061] Optionally, in one embodiment of the present disclosure, the area of ​​the first valve port 31 is smaller than the area of ​​the third valve port 33 and the area of ​​the second valve port 32. By setting it in this way, the pressure of the refrigerant can be adjusted more accurately, which is beneficial to the phase change of the refrigerant. In some examples, the first valve port 31 serves as the refrigerant inlet and the second valve port 32 serves as the refrigerant outlet, such as when the heat pump is in working state to achieve heating. In other examples, the first valve port 31 serves as the refrigerant outlet and the second valve port 32 serves as the refrigerant inlet, such as when cooling.

[0062] Optionally, in an embodiment of the present disclosure, the third valve port 33 may also serve as a refrigerant outlet, and the areas of the third valve port 33 and the second valve port 32 may be equal or unequal.

[0063] Optionally, in an embodiment of the present disclosure, the first valve port 31 is configured as a diamond structure. This configuration can facilitate adjustment of the blocking area of ​​the first valve port 31, thereby adjusting the flow rate of the refrigerant to achieve pressure regulation.

[0064] Optionally, in another embodiment of the present disclosure, the first valve port 31 may also be configured as a triangle, a rectangle, etc.

[0065] Optionally, in an embodiment of the present disclosure, the valve core 2 is further configured to be able to open or close all the first valve ports 31 , and the multi-way valve further includes a third state, a fourth state, a fifth state and a sixth state.

[0066] In the third state, the first valve port 31 and the third valve port 33 are not connected to the second valve port 32, and the first valve port 31 and the third valve port 33 are not connected. In the fourth state, the second valve port 32 and the third valve port 33 are fully connected, and the first valve port 31 is cut off. In the fifth state, the first valve port 31 and the third valve port 33 are fully connected, and the second valve port 32 is cut off. In the sixth state, the first valve port 31 and the second valve port 32 are fully connected, and the third valve port 33 is cut off. By setting in this way, the use scenarios of the multi-way valve can be expanded, making the application of the multi-way valve more convenient.

[0067] Optionally, in one embodiment of the present disclosure, the second valve port 32 is located between the first valve port 31 and the third valve port 33, and the straight-line distance between the first valve port 31 and the third valve port 33 is smaller than the straight-line distance between the second valve port 32 and the first valve port 31 or the third valve port 33. By setting in this way, it is convenient to control the second valve port 32 to be selectively connected with the first valve port 31 and the third valve port 33, thereby facilitating the change of the use of the multi-way valve.

[0068] It is understandable that the first valve port 31 and the third valve port 33 are relatively close, and the first valve port 31 and the third valve port 33 are far from the second valve port 32, so that the problem of too small adjustment range of the first valve port 31 caused by the first valve port 31 and the third valve port 33 being too close to the second valve port 32 can be avoided, and at the same time, the valve core 2 can be connected with the second valve port 32. The valve core 2 switches the first valve port 31 and the third valve port 33 to change the flow direction of the refrigerant. It should be noted that the straight-line distance referred to here can be the straight-line distance between the side of the first valve port 31 close to the third valve port 33 and the corresponding side of the third valve port 33, the straight-line distance between the side of the second valve port 32 close to the first valve port 31 and the corresponding side of the first valve port 31, and the straight-line distance between the side of the second valve port 32 close to the third valve port 33 and the corresponding side of the third valve port 33.

[0069] Optionally, in one embodiment of the present disclosure, the first valve port 31, the second valve port 32 and the third valve port 33 are distributed in a ring-shaped interval around the axis of the valve body 1, and the center line of the first valve port 31, the center line of the second valve port 32 and the center line of the third valve port 33 intersect at one point.

[0070] Among them, the first valve port 31, the second valve port 32 and the third valve port 33 are on the same radial plane, so that the center lines of the first valve port 31, the second valve port 32 and the third valve port 33 intersect at one point. This arrangement allows the valve core 2 to rotate around an axis, thereby realizing the switching of the interconnection relationship between the first valve port 31, the second valve port 32 and the third valve port 33, and at the same time, the size of the blocking area for the first valve port 31 can be adjusted, and it can be controlled and driven by a servo motor, which is more convenient to operate and more convenient for the manufacture of the valve body 1, further reducing the manufacturing cost.

[0071] A first angle 4 is formed between the center line of the first valve port 31 and the center line of the second valve port 32, a second angle 5 is formed between the center line of the first valve port 31 and the center line of the third valve port 33, and a third angle 6 is formed between the center line of the second valve port 32 and the center line of the third valve port 33. The angle of the second angle 5 is smaller than the angle of the first angle 4 or the third angle 6. By such an arrangement, on a radial plane, the first valve port 31 and the third valve port 33 are close to each other and are located on one side, and the second valve port 32 is located on the other side, so that when the valve core 2 rotates, the second valve port 32 can be kept in communication, and the communication relationship with the first valve port 31 and the third valve port 33 can be changed, and at the same time, it is beneficial to adjust the communication area of ​​the first valve port 31.

[0072] Optionally, in one embodiment of the present disclosure, the angle of the first angle 4 and the angle of the third angle 6 are 120°-180°, and the angle of the second angle 5 is 30°-80°. In some examples, the angle of the first angle 4 may be 180°, the angle of the third angle 6 is 120°, and the angle of the second angle 5 is 60°.

[0073] Optionally, in one embodiment of the present disclosure, the valve core 2 is provided with a guide channel 21, the guide channel 21 is connected to the second valve port 32, and the guide channel 21 can selectively be connected to the first valve port 31 and the third valve port 33. The guide channel 21 can be provided to facilitate switching of the connection relationship between the first valve port 31, the second valve port 32 and the third valve port 33, so as to realize switching of different working states of the multi-way valve.

[0074] Among them, in the first state, the guide channel 21 is fully connected with the first valve port 31 and the second valve port 32, and the guide channel 21 is not connected with the third valve port 33. At this time, the first valve port 31 and the second valve port 32 are fully connected. In the second state, the guide channel 21 is fully connected with the second valve port 32, and the guide channel 21 is not connected with the third valve port 33. The valve core 2 blocks part of the first valve port 31, so that only part of the first valve port 31 is connected with the guide channel 21. At this time, the first valve port 31 and the second valve port 32 are partially connected. In the third state, the valve core 2 blocks the first valve port 31 and the third valve port 33. At this time, the first valve port 31 and the third valve port 33 are not connected with the second valve port 32. In the fourth state, the guide channel 21 is fully connected with the third valve port 33 and the second valve port 32, and the guide channel 21 is not connected with the first valve port 31. At this time, the third valve port 33 and the second valve port 32 are fully connected.

[0075] 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 in the valve cavity 12, the valve port 3 is provided in the side wall of 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 groove provided in the side of the valve core 2. By such a configuration, the valve core 2 can rotate in the valve body 1, and the valve body 1 can protect the valve core 2.

[0076] The groove is located on the side arm of the valve core 2, and the number of the grooves is one, that is, the notch of the groove is used to communicate with the first valve port 31, the second valve port 32 and the third valve port 33. The notch of the groove is located on the side wall of the valve core 2, so that when the valve core 2 rotates, the relative position of the notch of the groove to the first valve port 31, the second valve port 32 and the third valve port 33 can be changed to achieve the coordination with the first valve port 31, the second valve port 32 and the third valve port 33. It should be noted that the groove can be a fan-shaped structure, and its angle can be 300°, so that the proportional adjustment of the first valve port 31 can be easily achieved, and the conduction with the second valve port 32 and / or the third valve port 33 can be achieved at the same time.

[0077] In some examples, the valve core 2 is configured as a spherical shape, and the first valve port 31, the second valve port 32, and the third valve port 33 may not be located in a radial plane, so that the valve core 2 can rotate in multiple directions. Of course, the first valve port 31, the second valve port 32, and the third valve port 33 may also be located in a radial plane, and the valve core 2 rotates along an axis perpendicular to the radial plane.

[0078] In other examples, the valve core 2 is configured as a column or a disk, and the first valve port 31, the second valve port 32, and the third valve port 33 may be located in a radial plane. When the valve core 2 is a column, its axis is perpendicular to the radial plane, so that the valve core 2 rotates around its own axis. When the valve core 2 is a disk, it is parallel to the radial plane, and the valve core 2 rotates around its own axis.

[0079] Optionally, in another embodiment of the present disclosure, the valve body 1 is configured as a first disk body 13, the valve core 2 is configured as a second disk body 14, the first disk body 13 and the second disk body 14 are stacked along the axial direction, the valve port 3 is configured as an opening penetrating the first disk body 13, and the flow guide channel 21 is configured as a groove opened on a side of the second disk body 14 facing the first disk body 13. By such an arrangement, the occupied volume of the multi-way valve can be reduced, and after the first disk body 13 and the second disk body 14 are stacked, as the valve core 2 rotates, the flow guide channel 21 can be connected with the opening on the stacked valve body 1, or the opening on the valve body 1 can be blocked by the second disk body 14.

[0080] In some examples, the first disk body 13 may be located above the second disk body 14 , and of course the opposite arrangement may also be possible. The diameters of the first disk body 13 and the second disk body 14 may be equal or unequal.

[0081] It is understandable that a groove is provided on one side of the second plate 14 facing the first plate 13, and the notch of the groove can be covered by the first plate 13. When the opening on the first plate 13, that is, the valve port 3, is connected to the notch of the groove, the refrigeration refrigerant can flow. Of course, it should be noted that other connection interfaces and other structures can be provided on the first plate 13 for connecting with external pipes, and a sealing structure can also be provided, and no excessive restrictions are imposed here.

[0082] like Figure 6-Figure 8 As shown, the second aspect of the present disclosure further provides a thermal management system, comprising the above-mentioned multi-way valve for refrigerant.

[0083] Optionally, in an embodiment of the present disclosure, the multi-way valve includes a first multi-way valve 105, and the thermal management system further includes a compressor 100, a gas-liquid separator 101, an outdoor heat exchanger 102, and a condenser 103;

[0084] The outlet of the compressor 100 is connected to the inlet of the condenser 103 and the first valve port 31 of the first multi-way valve 105, the outlet of the condenser 103 is connected to the inlet of the outdoor heat exchanger 102, the outlet of the outdoor heat exchanger 102 is connected to the third valve port 33 of the first multi-way valve 105, and the second valve port 32 of the first multi-way valve 105 is connected to the inlet of the gas-liquid separator 101.

[0085] In some examples, the first valve port 31, the second valve port 32, and the third valve port 33 of the first multi-way valve 105 can be connected to corresponding pipelines through the flow channel plate, and the pipelines are connected to corresponding equipment. When the first valve port 31 is connected to the second valve port 32, the first multi-way valve 105 can be used as a proportional valve or a general expansion valve to achieve proportional regulation so that the refrigerant can achieve a phase change process.

[0086] Among them, the thermal management system has three working modes. In the first mode, the first valve port 31 and the second valve port 32 of the first multi-way valve 105 are connected, and the first multi-way valve 105 is in the first state or the second state. At this time, by adjusting the conduction degree of the first valve port 31 and the second valve port 32, hot gas bypass can be achieved, so that the thermal management system is in a low-temperature heating state, and the compressor 100 is heated through a triangular cycle.

[0087] In the second mode, the second valve port 32 of the first multi-way valve 105 is connected to the third valve port 33, and the first valve port 31 is blocked. At this time, the first multi-way valve 105 is in the fourth state, and the thermal management system is in a normal heating state.

[0088] In the third mode, the first valve port 31 and the third valve port 33 of the first multi-way valve 105 are not connected to the second valve port 32, and the first valve port 31 and the third valve port 33 are cut off. At this time, the first multi-way valve 105 is in the third state, and the thermal management system is in a normal cooling state.

[0089] Optionally, in one embodiment of the present disclosure, the multi-way valve also includes a second multi-way valve 106, the thermal management system also includes an evaporator 104 and a battery cooler 108, the first valve port 31 of the second multi-way valve 106 is connected to the inlet of the outdoor heat exchanger 102, the second valve port 32 of the second multi-way valve 106 is connected to the outlet of the condenser 103, the third valve port 33 of the second multi-way valve 106 and the outlet of the outdoor heat exchanger 102 are both connected to the inlet of the evaporator 104 and the inlet of the battery cooler 108, and the outlet of the evaporator 104 and the outlet of the battery cooler 108 are both connected to the inlet of the gas-liquid separator 101.

[0090] The states of the first valve port 31, the second valve port 32, and the third valve port 33 of the second multi-way valve 106 can be adjusted according to the actual application mode. In some examples, in the first mode, the first valve port 31 of the second multi-way valve 106 is cut off, and the second valve port 32 and the third valve port 33 are connected to each other. In the second mode, the first valve port 31 of the second multi-way valve 106 is partially connected and communicated with the second valve port 32, and the second valve port 32 and the third valve port 33 are connected to each other. In the third mode, the first valve port 31 of the second multi-way valve 106 is partially connected and communicated with the second valve port 32, and the third valve port 33 is cut off.

[0091] Optionally, in one embodiment of the present disclosure, the multi-way valve also includes a third multi-way valve 107, the first valve port 31 of the third multi-way valve 107 is connected to the inlet of the battery cooler 108, the second valve port 32 of the third multi-way valve 107 is connected to the third valve port 33 of the second multi-way valve 106 and the inlet of the evaporator 104, and the third valve port 33 of the third multi-way valve 107 is connected to the outlet of the outdoor heat exchanger 102.

[0092] Among them, the states of the first valve port 31, the second valve port 32 and the third valve port 33 of the third multi-way valve 107 can be adjusted according to the actual application mode. In some examples, in the first mode, the first valve port 31 of the third multi-way valve 107 is cut off, and the second valve port 32 and the third valve port 33 are connected to each other. In the second mode, the first valve port 31 of the third multi-way valve 107 is partially connected and communicated with the second valve port 32, and the third valve port 33 is cut off. In the third mode, the first valve port 31 of the third multi-way valve 107 is partially connected and communicated with the second valve port 32, and the second valve port 32 and the third valve port 33 are connected to each other.

[0093] It should be noted that the thermal management system here only mentions the connection equipment related to the multi-way valve. As for other equipment that realizes corresponding functions, they can be set according to actual needs and are not restricted too much here.

[0094] A third aspect of the present disclosure also provides a vehicle, comprising the above-mentioned multi-way valve for refrigerant, or the above-mentioned thermal management system.

[0095] 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 in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0096] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0097] In addition, 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 and a third valve port; The valve core is configured to partially open the first valve port, and / or to fully open or cut off the second valve port, and / or to fully open or cut off the third valve port; The multi-way valve includes a first state and a second state. In the first state, the first valve port is partially open, the second valve port is fully open, and the third valve port is cut off. In the second state, the first valve port is partially open, the second valve port is fully open, and the third valve port is fully open.

2. The multi-way valve for refrigerant according to claim 1, 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 the plurality of first positions to change the degree of conduction between the first valve port and the second valve port; 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 the plurality of second positions to change the degree of conduction between the first valve port and the second valve port.

3. The multi-way valve for refrigerant according to claim 2, characterized in that: An area of ​​the first valve port is smaller than an area of ​​the second valve port.

4. The multi-way valve for refrigerant according to claim 3, characterized in that: The first valve port is configured as a diamond structure.

5. The multi-way valve for refrigerant according to claim 1, characterized in that: The valve core is also configured to be able to open or close all of the first valve ports, and the multi-way valve further includes a third state, a fourth state, a fifth state and a sixth state; In the third state, the first valve port and the third valve port are both not connected to the second valve port, and the first valve port and the third valve port are not connected. In the fourth state, the second valve port and the third valve port are fully connected, and the first valve port is cut off. In the fifth state, the first valve port and the third valve port are fully connected, and the second valve port is cut off. In the sixth state, the first valve port and the second valve port are fully connected, and the third valve port is cut off.

6. The multi-way valve for refrigerant according to claim 1, characterized in that: The second valve port is located between the first valve port and the third valve port, and a straight-line distance between the first valve port and the third valve port is smaller than a straight-line distance between the second valve port and the first valve port or the third valve port.

7. The multi-way valve for refrigerant according to claim 6, characterized in that: The first valve port, the second valve port and the third valve port are distributed in an annular pattern around the axis of the valve body, and the center lines of the first valve port, the second valve port and the third valve port intersect at one point; A first angle is formed between the center line of the first valve port and the center line of the second valve port, a second angle is formed between the center line of the first valve port and the center line of the third valve port, and a third angle is formed between the center line of the second valve port and the center line of the third valve port; The second angle is smaller than the first angle or the third angle.

8. The multi-way valve for refrigerant according to claim 7, characterized in that: The first angle and the third angle are 120°-180°, and the second angle is 30°-80°.

9. The multi-way valve for refrigerant according to claim 1, characterized in that: The valve core is provided with a guide channel, the guide channel is communicated with the second valve port, and the guide channel can selectively communicate with the first valve port and the third valve port.

10. The multi-way valve for refrigerant according to claim 9, characterized in that: The valve body is constructed as a shell, a valve cavity is arranged in the valve body, the valve core is rotatably connected in the valve cavity, the valve port is opened in the side wall of 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 groove opened on the side of the valve core; or, The valve body is configured as a first disk body, the valve core is configured as a second disk body, the first disk body and the second disk body are stacked along the axial direction, the valve port is configured as an opening penetrating the first disk body, and the guide channel is configured as a groove opened on a side of the second disk body facing the first disk body.

11. A thermal management system, characterized in that: It comprises a multi-way valve for refrigerant as claimed in any one of claims 1 to 10.

12. The thermal management system according to claim 11, characterized in that: The multi-way valve includes a first multi-way valve, and the thermal management system also includes a compressor, a gas-liquid separator, an outdoor heat exchanger and a condenser; Among them, the outlet of the compressor is connected to the inlet of the condenser and the first valve port of the first multi-way valve, the outlet of the condenser is connected to the inlet of the outdoor heat exchanger, the outlet of the outdoor heat exchanger is connected to the third valve port of the first multi-way valve, and the second valve port of the first multi-way valve is connected to the inlet of the gas-liquid separator.

13. The thermal management system according to claim 12, characterized in that: The multi-way valve also includes a second multi-way valve, and the thermal management system also includes an evaporator and a battery cooler. The first valve port of the second multi-way valve is connected to the inlet of the outdoor heat exchanger, the second valve port of the second multi-way valve is connected to the outlet of the condenser, the third valve port of the second multi-way valve and the outlet of the outdoor heat exchanger are both connected to the inlet of the evaporator and the inlet of the battery cooler, and the outlet of the evaporator and the outlet of the battery cooler are both connected to the inlet of the gas-liquid separator.

14. The thermal management system according to claim 13, characterized in that: The multi-way valve also includes a third multi-way valve, a first valve port of the third multi-way valve is connected to the inlet of the battery cooler, a second valve port of the third multi-way valve is connected to the third valve port of the second multi-way valve and the inlet of the evaporator, and a third valve port of the third multi-way valve is connected to the outlet of the outdoor heat exchanger.

15. A vehicle, characterized in that: It comprises a multi-way valve for refrigerant as claimed in any one of claims 1-10, or a thermal management system as claimed in any one of claims 11-14.

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