Multi-way valve, thermal management system and vehicle

Abstract

The invention discloses a multi-way valve, a heat management system and a vehicle. The multi-way valve comprises a valve body, the valve body is provided with a mounting cavity, and the valve body comprises a valve body bottom wall and a valve body side wall; the valve element is rotatably arranged in the mounting cavity; in the circumferential direction of the valve body, a plurality of first circulation openings are formed in the side wall of the valve body at intervals, and a plurality of second circulation openings are formed in the bottom wall of the valve body at intervals; a plurality of circulation grooves are formed in the valve element, and groove openings of the circulation grooves face the side wall of the valve body and are used for communicating the first circulation opening with the circulation grooves; an overflowing hole is formed in the side wall, corresponding to one side of the bottom wall of the valve body, of each circulating groove, and the overflowing holes are used for communicating the circulating grooves with the at least one second circulating opening. The multi-way valve provided by the scheme of the invention has the functions of conducting mode switching and flow regulation and control, meanwhile, the communication relation of the multi-way valve is more flexible and diversified, the structure of the multi-way valve is simplified, the integration level of the multi-way valve is improved, and when the multi-way valve is applied to a heat management system, the number of the valves can be reduced, and the integration level of the heat management system can be improved.

Description

Technical Field

[0001] The present application relates to the field of valves, and in particular to a multi-way valve, a thermal management system and a vehicle. Background Art

[0002] The thermal management system of new energy vehicles is designed with multiple circulation loops, and after the thermal management system adopts heat pump technology, the circulation loop becomes more complicated. The thermal management system is usually designed with multiple valves with different functions to adjust the circulation loop. Some valves are used to switch the conduction mode of the thermal management system, and some valves are used to adjust the proportional distribution of the coolant flow, which leads to an excessive number of valves in the thermal management system, a low degree of integration of the thermal management system, and increased costs. Summary of the invention

[0003] In view of the above problems, the embodiments of the present application provide a multi-way valve, a thermal management system and a vehicle, aiming to solve the problem of low integration of existing thermal management systems.

[0004] In a first aspect, an embodiment of the present application provides a multi-way valve, comprising: a valve body, which has an installation cavity, the valve body comprising a valve body bottom wall and a valve body side wall; a valve core, which is rotatably arranged in the installation cavity; wherein, along the circumference of the valve body, a plurality of first flow ports are spaced apart on the valve body side wall, and a plurality of second flow ports are spaced apart on the valve body bottom wall; a plurality of flow grooves are formed on the valve core, the grooves of the flow grooves face the valve body side wall, and the grooves are used to connect the first flow ports with the flow grooves; each of the flow grooves is provided with a flow hole on the side wall corresponding to the side of the valve body bottom wall, and the flow hole is used to connect the flow groove with at least one of the second flow ports.

[0005] The multi-way valve provided in the embodiment of the present application includes a valve body and a valve core. The valve body has an installation cavity. The valve body includes a valve body bottom wall provided with a plurality of second flow ports and a valve body side wall provided with a plurality of first flow ports. The valve core has a plurality of flow slots. The flow slots have slots facing the valve body side wall. The side walls of the flow slots are provided with flow holes facing the valve body bottom wall. The flow slots and the flow holes constitute a connecting channel on the valve core. When the valve core is installed in the installation cavity, the connecting channel is used to connect the first flow port and the second flow port. Specifically, the valve core is rotatably installed in the installation cavity. By rotating the valve core, different first flow ports can be adjusted to be connected with different second flow ports, thereby realizing switching of multiple conduction modes; at the same time, during the rotation of the valve core, the connecting area between the flow hole and the second flow port can also be adjusted, thereby realizing the regulation of the flow from the first flow port to the second flow port. Therefore, the multi-way valve provided in the embodiment of the present application not only has the function of switching the conduction mode, but also has the function of flow regulation. At the same time, the connectivity of the multi-way valve is more flexible and diverse, which is conducive to simplifying the structure of the multi-way valve and improving the integration of the multi-way valve itself. When the multi-way valve is applied to a thermal management system, the number of valves can be reduced and the integration of the thermal management system can be improved.

[0006] In some embodiments, the spacing distance between at least two adjacent second flow openings is smaller than the length of the flow hole, and the flow hole can simultaneously connect the at least two adjacent second flow openings, so that the flow hole can connect the flow groove with the at least two second flow openings.

[0007] By setting the spacing distance between at least two adjacent second flow ports to be smaller than the length of the flow hole, the first flow port can be connected to the at least two second flow ports at the same time, thereby enriching the connection relationship of the multi-way valve. At the same time, the flow ratio distribution in the pipeline connected to different second flow ports can also be adjusted by rotating the valve core.

[0008] In some embodiments, a side sealing gasket is further provided in the installation cavity, and the side sealing gasket is clamped between the side wall of the valve body and the valve core. A plurality of first avoidance ports are opened on the side sealing gasket, and the first avoidance ports correspond one-to-one to the first flow ports.

[0009] By arranging a side sealing gasket between the side wall of the valve body and the valve core, the side sealing gasket is used to seal the gap between the side wall of the valve body and the valve core, thereby avoiding cross-flow between different flow grooves.

[0010] In some embodiments, a bottom sealing gasket is further provided in the installation cavity, and the bottom sealing gasket is clamped between the bottom wall of the valve body and the valve core. A plurality of second avoidance ports are opened on the bottom sealing gasket, and the second avoidance ports correspond one-to-one to the second flow ports.

[0011] By arranging a bottom sealing gasket between the bottom wall of the valve body and the valve core, the bottom sealing gasket is used to seal the gap between the bottom wall of the valve body and the valve core, thereby avoiding cross-flow between different second flow ports.

[0012] In some embodiments, the valve core includes a side plate and an upper baffle and a lower baffle respectively arranged on opposite ends of the side plate, the side plate, the upper baffle and the lower baffle jointly define the flow groove, and the flow hole is opened on the lower baffle.

[0013] By configuring the valve core to include a side plate, an upper baffle plate and a lower baffle plate, the side plate, the upper baffle plate and the lower baffle plate are used to define a flow groove, so that the overall mass of the valve core is relatively small and the valve core is easy to rotate.

[0014] In some embodiments, the valve core further includes a reinforcing rib located in the flow groove, and the reinforcing rib is connected to the side plate, the upper baffle plate and the lower baffle plate, and is particularly arranged in an integrally formed manner.

[0015] By setting reinforcing ribs in the circulation groove that connect the side plates, upper baffle plate and lower baffle plate, the overall mechanical strength of the valve core is improved and the risk of deformation or breakage of the valve core during rotation is reduced. In particular, when the reinforcing ribs are arranged in an integrally formed manner with the side plates, upper baffle plate and lower baffle plate, the overall mechanical strength of the valve core is further improved.

[0016] In some embodiments, the valve body further includes a valve cover, which is connected to the side wall of the valve body and is opposite to the bottom wall of the valve body.

[0017] By connecting a valve cover to an end of the valve body side wall opposite to the valve body bottom wall, the installation cavity becomes a closed cavity, the valve core is installed in the installation cavity, and the valve cover can protect the valve core and prevent the valve core from falling out of the installation cavity.

[0018] In some embodiments, the multi-way valve further includes a driving member, wherein the driving member is connected to the valve core and is used to drive the valve core.

[0019] By arranging a driving member to drive the valve core to rotate, the multi-way valve can realize automatic switching of the conduction mode and / or adjustment of the flow.

[0020] In some embodiments, the driving member is disposed outside the valve body, a transmission shaft at least partially extending out of the valve body is mounted on the valve core, and the driving member is drivingly connected to the transmission shaft.

[0021] By arranging the valve core in the installation cavity, arranging the driving member outside the installation cavity, and using the driving member to drive the transmission shaft connected to the valve core to drive the valve core to rotate, this not only facilitates the installation and maintenance of the driving member, but also reduces the impact of the medium in the installation cavity on the driving member.

[0022] In some embodiments, a single first flow opening is used to communicate with a single flow groove, and the number of the second flow openings is greater than the number of the first flow openings.

[0023] By setting a single first flow port to be connected to a single flow groove and increasing the number of second flow ports, the connection relationship of the multi-way valve can be enriched and the application scenarios of the multi-way valve can be expanded.

[0024] In some embodiments, the number of the first flow openings is two, and the two first flow openings are respectively a first side hole and a second side hole arranged opposite to each other on the side wall of the valve body; the valve core is provided with at least two flow grooves; the number of the second flow openings is five, and the five second flow openings are respectively a first through hole, a second through hole, a third through hole, a fourth through hole and a fifth through hole arranged adjacent to each other in sequence around the central axis of the valve core, and the multi-way valve is used to adjust the corresponding connection relationship between the first side hole, the second side hole and the first through hole, the second through hole, the third through hole, the fourth through hole and the fifth through hole by rotating the angle of the valve core.

[0025] The multi-way valve provided in the embodiment of the present application can be used as a six-way valve, which can switch between multiple conduction modes.

[0026] In some embodiments, the first through hole and the third through hole are configured to be connected to the two first flow ports respectively, and the second through hole is an arc-shaped through hole; the spacing distance between the first through hole and the fifth through hole is less than the length of the flow hole.

[0027] The multi-way valve provided in the embodiment of the present application can be used as a six-way valve, and it can also perform flow control.

[0028] In a second aspect, an embodiment of the present application provides a thermal management system, which includes the above-mentioned multi-way valve.

[0029] The embodiment of the present application provides the above-mentioned multi-way valve, eliminating the need to use multiple valves, thereby improving the level of integration of the thermal management system.

[0030] In a third aspect, an embodiment of the present application provides a vehicle, which includes the above-mentioned thermal management system.

[0031] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the optional embodiments below. The accompanying drawings are only used for the purpose of illustrating the optional embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0033] Figure 1 It is a schematic diagram of the framework structure of the existing five-way valve-three-way valve circulation loop system;

[0034] Figure 2 Schematic diagram of the three-dimensional structure of the multi-way valve provided in some embodiments of the present application Figure 1 ;

[0035] Figure 3 Schematic diagram of the three-dimensional structure of the multi-way valve provided in some embodiments of the present application Figure 2 , the driving member is omitted in the figure;

[0036] Figure 4 A schematic diagram of an exploded structure of a multi-way valve provided in some embodiments of the present application;

[0037] Figure 5 A schematic diagram of the three-dimensional structure of a valve core in a multi-way valve provided in some embodiments of the present application;

[0038] Figure 6 A schematic diagram of the cross-sectional structure of a valve core in a multi-way valve provided in some embodiments of the present application;

[0039] Figure 7 Schematic diagram of the three-dimensional structure of the valve body in the multi-way valve provided in some embodiments of the present application Figure 1 ;

[0040] Figure 8 Schematic diagram of the three-dimensional structure of the valve body in the multi-way valve provided in some embodiments of the present application Figure 2 ;

[0041] Fig. 9 A schematic diagram of a cross-sectional structure of a multi-way valve in a conduction mode provided in some embodiments of the present application;

[0042] Fig.10 A schematic diagram of a cross-sectional structure of a multi-way valve provided in some embodiments of the present application in conduction mode 2;

[0043] Fig.11 A schematic diagram of a cross-sectional structure of a multi-way valve provided in some embodiments of the present application in conduction mode three;

[0044] Fig.12 A schematic diagram of a cross-sectional structure of a multi-way valve provided in some embodiments of the present application in conduction mode 4;

[0045] Fig.13A schematic diagram of a cross-sectional structure of a multi-way valve provided in some embodiments of the present application in conduction mode five;

[0046] Fig.14 A schematic diagram of a cross-sectional structure of a multi-way valve provided in some embodiments of the present application in conduction mode 6;

[0047] Fig.15 A schematic diagram of a cross-sectional structure of a valve core in a multi-way valve provided in some other embodiments of the present application;

[0048] Fig.16 A schematic diagram of the framework structure of a thermal management system provided in some embodiments of the present application;

[0049] Fig.17 A schematic diagram of a thermal management system framework structure in a conduction mode provided for some embodiments of the present application;

[0050] Fig.18 A schematic diagram of a thermal management system framework structure in conduction mode 2 provided in some embodiments of the present application;

[0051] Fig.19 A schematic diagram of a thermal management system framework structure in conduction mode three provided for some embodiments of the present application;

[0052] Fig. 20 A schematic diagram of a thermal management system framework structure in conduction mode 4 provided for some embodiments of the present application;

[0053] Fig.21 A schematic diagram of a thermal management system framework structure in conduction mode five provided for some embodiments of the present application;

[0054] Fig. 22 A schematic diagram of the thermal management system framework structure in conduction mode six provided for some embodiments of the present application.

[0055] The reference numerals in the specific implementation manner are as follows:

[0056] 10. Multi-way valve;

[0057] 1. valve body; 101. valve body bottom wall; 1011. support rib; 102. valve body side wall; 1021. second mounting ear; 103. valve cover; 104. threaded fastener; 1031. first mounting ear; 11. mounting cavity; 12. first flow opening; 12a. first side hole; 12b. second side hole; 13. second flow opening; 13a. first through hole; 13b. second through hole; 13c. third through hole; 13d. fourth through hole; 13e. fifth through hole;

[0058] 2. valve core; 21. flow slot; 22. flow hole; 201. side plate; 202. upper baffle plate; 203. lower baffle plate; 204. reinforcing rib;

[0059] 3. Side sealing pad; 31. First avoidance;

[0060] 4. Bottom sealing pad; 41. Second avoidance opening;

[0061] 5. Driving parts; 6. Transmission shaft;

[0062] 20. Battery;

[0063] 30. Water pump;

[0064] 40. PTC heating element;

[0065] 50. Other circulation loops;

[0066] 1', five-way valve;

[0067] 2', three-way valve. DETAILED DESCRIPTION

[0068] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0069] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0070] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0071] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0072] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0073] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0074] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0075] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like 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 mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0076] The thermal management system of new energy vehicles is designed with multiple circulation loops, and after the thermal management system adopts heat pump technology, the circulation loop becomes more complicated. The thermal management system is usually designed with a variety of valves with different functions to adjust the circulation loop. Some valves are used to switch the conduction mode of the thermal management system, and some valves are used to adjust the proportion of the coolant flow to meet the different needs of the thermal management system. As an example, see Figure 1 , Figure 1The schematic diagram of the framework structure of the existing typical five-way valve-three-way valve circulation loop system is shown. In the circulation loop system, there are a five-way valve 1', a three-way valve 2', a battery 20, a water pump 30, a PTC (Positive Temperature Coefficient) heating element 40 and other components. In the circulation loop system, the five-way valve 1' plays a conduction mode switching function, that is, the five-way valve 1' can change the connection relationship between the five pipe ports A, B, C, D, and E; the three-way valve 2' plays a flow distribution function, and the three-way valve 2' can adjust the three connection states of the coolant flowing from port 1 to port 2 or from port 1 to port 3 or from port 1 to port 2 and port 3 in a certain proportion. The mixed use of multiple valves will result in too many valves in the thermal management system, and the integration of the thermal management system will be low, resulting in increased costs.

[0077] Based on this, the present application proposes an integrated multi-way valve, which has both a conduction mode switching function and a flow distribution function, thereby improving the integration of the entire thermal management system and reducing the cost of the thermal management system.

[0078] Specifically, the multi-way valve includes a valve body and a valve core, the valve body has an installation cavity, the valve core is installed in the installation cavity, the side wall and the bottom wall of the installation cavity are provided with a plurality of flow ports, the valve core is provided with a plurality of flow grooves, the flow grooves have notches and flow holes, wherein the notches are provided corresponding to the side walls of the installation cavity, the flow holes are provided corresponding to the bottom wall of the installation cavity, and the flow ports on the side walls of the installation cavity can be connected with the flow ports on the bottom wall of the installation cavity through the notches and flow holes of the flow grooves. Further, the valve core is rotatably arranged in the installation cavity, and the flow ports on the side walls can be adjusted to be connected with different flow ports on the bottom wall of the installation cavity by rotating the valve core, thereby realizing the switching of the conduction mode; at the same time, during the rotation of the valve core, the connection area between the flow holes and the flow ports on the bottom wall of the installation cavity can also be adjusted, thereby realizing the control of the flow rate.

[0079] The multi-way valve disclosed in some embodiments of the present application can be used in a thermal management system, which can be, but is not limited to, used in a vehicle.

[0080] Please refer to Figures 2 to 15The embodiment of the present application provides a multi-way valve 10, comprising: a valve body 1 and a valve core 2; the valve body 1 has an installation cavity 11, and the valve body 1 comprises a valve body bottom wall 101 and a valve body side wall 102; the valve core 2 is rotatably arranged in the installation cavity 11; wherein, along the circumference of the valve body 1, a plurality of first flow ports 12 are spaced apart on the valve body side wall 102, and a plurality of second flow ports 13 are spaced apart on the valve body bottom wall 101; a plurality of flow grooves 21 are formed on the valve core 2, and the grooves of the flow grooves 21 face the valve body side wall 102, and the grooves of the flow grooves 21 are used to connect the first flow ports 12 with the flow grooves 21; each flow groove 21 is provided with a flow hole 22 on the side wall corresponding to the valve body bottom wall 101, and the flow hole 22 is used to connect the flow groove 21 with at least one second flow port 13.

[0081] See also Figure 4 The multi-way valve 10 includes a valve body 1 and a valve core 2. As a main component of the multi-way valve 10, the valve body 1 is used to seal together with the valve core 2 and can effectively withstand the medium pressure. The medium here can be water, oil or other liquids. Optionally, the shape of the valve body 1 is columnar, including but not limited to cylindrical, prismatic, etc. The material of the valve body 1 includes but is not limited to at least one of plastic and metal. Optionally, the valve body 1 is a metal part, so as to ensure that the valve body 1 has a higher strength and can better withstand the medium pressure. Optionally, the valve body 1 is a plastic part, so that the valve body 1 can be lightweight.

[0082] Specifically, see Figure 4 , Figure 7 and Figure 8 , a mounting cavity 11 is formed on the valve body 1. The mounting cavity 11 is a cavity for accommodating the valve core 2. The mounting cavity 11 is also used to accommodate a medium, such as a coolant. The valve body 1 includes a valve body bottom wall 101 and a valve body side wall 102. The valve body bottom wall 101 and the valve body side wall 102 enclose the mounting cavity 11. The valve body bottom wall 101 is plate-shaped, and the valve body side wall 102 is cylindrical. The valve body bottom wall 101 is connected to one end of the valve body side wall 102. Optionally, the valve body bottom wall 101 is in the shape of a circular plate, and the valve body side wall 102 is in the shape of a cylindrical cylinder. Here, the valve body 1 can be an integrally formed part, for example, the valve body 1 is a plastic part, and the valve body 1 can be integrally formed by an injection molding process; the valve body 1 can also be an assembly formed by assembling the valve body bottom wall 101 and the valve body side wall 102 together.

[0083] See also Figure 7 and Figure 8, a plurality of first flow openings 12 are provided on the valve body side wall 102, and along the circumference of the valve body 1, the plurality of first flow openings 12 are arranged in sequence at intervals on the valve body side wall 102. The first flow openings 12 are through holes arranged on the valve body side wall 102, and the medium can enter the installation cavity 11 or flow out of the installation cavity 11 through the first flow openings 12. The first flow openings 12 can be connected to an external pipeline to discharge or absorb the medium to the outside. Here, the plurality of first flow openings 12 refer to at least two first flow openings 12, such as two, three or four. The plurality of first flow openings 12 can be arranged at equal intervals or at unequal intervals. The opening area and the opening shape of each first flow opening 12 can be the same or different. The height of each first flow opening 12 from the bottom wall 101 of the valve body can be the same or different.

[0084] As an example, see Figures 8 to 14 Two first flow openings 12 are provided on the valve body side wall 102, namely a first side hole 12a and a second side hole 12b. The first side hole 12a and the second side hole 12b are arranged opposite to each other, that is, the connecting line of the first side hole 12a and the second side hole 12b intersects with the central axis of the valve body 1.

[0085] See also Figure 7 and Figure 8 , a plurality of second flow openings 13 are provided on the bottom wall 101 of the valve body. Along the circumference of the valve body 1, the plurality of second flow openings 13 are arranged in sequence at intervals on the bottom wall 101 of the valve body, that is, with the central axis of the valve body 1 as the center, the plurality of second flow openings 13 are distributed at intervals on the bottom wall 101 of the valve body in the circumferential direction around the central axis of the valve body 1. The second flow openings 13 are through holes arranged on the bottom wall 101 of the valve body, and the medium can enter the installation cavity 11 or flow out of the installation cavity 11 through the second flow openings 13. The second flow openings 13 can be connected to an external pipeline to discharge or absorb the medium to the outside. Here, the plurality of second flow openings 13 refer to at least two second flow openings 13. The plurality of second flow openings 13 can be arranged at equal intervals or at unequal intervals. The opening area and opening shape of each second flow opening 13 can be the same or different. The distances of each second flow opening 13 to the central axis of the valve body 1 can be the same or different.

[0086] As an example, see Figures 8 to 14 The valve body bottom wall 101 is provided with five second flow openings 13, which are Figure 8The first through hole 13a, the second through hole 13b, the third through hole 13c, the fourth through hole 13d and the fifth through hole 13e are arranged in sequence in the clockwise direction. The first through hole 13a, the second through hole 13b, the third through hole 13c, the fourth through hole 13d and the fifth through hole 13e are distributed in an annular shape with the central axis of the valve body 1 as the center. Among them, the first through hole 13a, the second through hole 13b and the fifth through hole 13e are arc-shaped through holes, and the third through hole 13c and the fourth through hole 13d are circular through holes. In order to ensure the strength of the bottom wall 101 of the valve body, two supporting ribs 1011 are further provided in the second through hole 13b, and one supporting rib 1011 is respectively provided in the first through hole 13a and the fifth through hole 13e.

[0087] The valve core 2 is a valve part in the valve that realizes the basic functions of direction control, pressure control or flow control by moving or rotating. The material of the valve core 2 includes but is not limited to at least one of plastic and metal. Optionally, the material of the valve core 2 is metal, thereby ensuring the strength of the valve core 2. Optionally, the material of the valve core 2 is plastic, thereby making the valve core 2 lightweight. The valve core 2 is used to be installed in the installation cavity 11, and the valve core 2 can be in direct contact with the valve body 1, for example, the valve core 2 and the valve body 1 have an interference fit; or the valve core 2 and the valve body 1 can be in indirect contact, for example, a seal is provided between the valve core 2 and the valve body 1. Specifically, the valve core 2 is rotatably arranged in the installation cavity 11, and the rotatable arrangement of the valve core 2 here refers to the rotation of the valve core 2 around its own central axis.

[0088] See also Figures 4 to 6 , a plurality of flow grooves 21 are provided on the valve core 2, each flow groove 21 has a notch, and the notch of each flow groove 21 faces the valve body side wall 102, and the notch is used to connect the first flow port 12 with the flow groove 21. Optionally, the notches of the plurality of flow grooves 21 are arranged in sequence along the circumference of the valve core 2. At the same time, a flow hole 22 is provided on the side wall of each flow groove 21, specifically, the flow hole 22 is provided on the side wall of the flow groove 21 corresponding to the valve body bottom wall 101, and the flow hole 22 also corresponds to the valve body bottom wall 101. The flow hole 22 is used to connect the flow groove 21 with the second flow port 13, that is, the flow groove 21 and the flow hole 22 together constitute a connecting channel on the valve core 2, and the connecting channel is used to connect the first flow port 12 and the second flow port 13 on the valve body 1 for medium to pass through. Optionally, the area of ​​a single flow hole 22 is less than or equal to the area of ​​a single second flow port 13.

[0089] Since the valve core 2 is rotatably disposed in the installation cavity 11, when the valve core 2 is rotated to different positions, the alignment of the flow hole 22 and different second flow ports 13 can be adjusted, so that the first flow port 12 can be connected to different second flow ports 13, thereby realizing the adjustment of multiple conduction modes. In addition, since the valve core 2 is rotatably disposed in the installation cavity 11, by designing the distance between two adjacent second flow ports 13 and the size of the flow hole 22, it can also be realized that the first flow port 12 is connected to different numbers of second flow ports 13 in the same rotation position or the same conduction mode. In the same rotation position or the same conduction mode, the flow hole 22 is used to connect the flow slot 21 with at least one second flow port 13, for example, the flow slot 21 is connected to one, two, three or more than three second flow ports 13 at the same time through the flow hole 22, thereby realizing that the first flow port 12 is connected to one, two, three or more than three second flow ports 13 at the same time.

[0090] For ease of understanding, see Figures 9 to 14 A six-port valve is provided as an example. Fig. 9 In the conduction mode 1, the first side hole 12a is connected to the fifth through hole 13e through a flow groove 21 and a flow hole 22 of the valve core 2, and the second side hole 12b is connected to the second through hole 13b through another flow groove 21 and a flow hole 22 of the valve core 2. Fig.10 In the conduction mode 2, the first side hole 12a is connected to the first through hole 13a and the fifth through hole 13e through a flow groove 21 and a flow hole 22 of the valve core 2 (i.e., one first flow port 12 is connected to two second flow ports 13), and the second side hole 12b is connected to the second through hole 13b through another flow groove 21 and a flow hole 22 of the valve core 2 (i.e., one first flow port 12 is connected to one second flow port 13). Fig.11 In the conduction mode 3, the first side hole 12a is connected to the first through hole 13a through a flow groove 21 and a flow hole 22 of the valve core 2, and the second side hole 12b is connected to the second through hole 13b through another flow groove 21 and a flow hole 22 of the valve core 2. Fig.12 In conduction mode 4, the first side hole 12a is connected to the first through hole 13a through a flow groove 21 and a flow hole 22 of the valve core 2, and the second side hole 12b is connected to the third through hole 13c through another flow groove 21 and a flow hole 22 of the valve core 2. Fig.13 In conduction mode 5, the first side hole 12a is connected to the second through hole 13b through a flow groove 21 and a flow hole 22 of the valve core 2, and the second side hole 12b is connected to the fourth through hole 13d through another flow groove 21 and a flow hole 22 of the valve core 2. Fig.14In the conduction mode 6, the first side hole 12a is connected to the second through hole 13b through a flow groove 21 and a flow hole 22 of the valve core 2, and the second side hole 12b is connected to the fifth through hole 13e through another flow groove 21 and a flow hole 22 of the valve core 2. It should be noted that the above conduction modes 1, 2, 3, 4, 5 and 6 are only examples and do not represent limitations on the present application.

[0091] Since the valve core 2 is rotatably disposed in the mounting cavity 11, the degree of alignment or misalignment between the flow hole 22 and the second flow port 13 is different during the rotation of the valve core 2, so that the communication area between the flow hole 22 and the second flow port 13 is different, and the flow from the first flow port 12 to the second flow port 13 can be adjusted. As an example, see Fig.12 ,exist Fig.12 On the basis of the rotation position shown, the valve core 2 is further rotated clockwise, and the communication area between the flow hole 22 and the first through hole 13a is reduced, so that the flow from the first side hole 12a to the first through hole 13a is reduced, and the communication area between the flow hole 22 and the third through hole 13c is also reduced, and the flow from the second side hole 12b to the third through hole 13c is also reduced. In particular, when the first flow port 12 is connected to multiple second flow ports 13 at the same time, the flow distribution can also be adjusted by rotating the valve core 2. As an example, see Fig.10 ,exist Fig.10 Based on the rotation position shown, the valve core 2 continues to rotate clockwise a little, the connecting area between the flow hole 22 and the first through hole 13a increases, so that the flow from the first side hole 12a to the first through hole 13a increases, and the connecting area between the flow hole 22 and the fifth through hole 13e decreases, and the flow from the first side hole 12a to the fifth through hole 13e decreases.

[0092] Since the multi-way valve 10 provided in the embodiment of the present application is a communication channel formed by the flow groove 21 and the flow hole 22 on the valve core 2 to connect the first flow port 12 on the valve body side wall 102 and the second flow port 13 on the valve body bottom wall 101, the communication relationship of the entire multi-way valve 10 is more flexible and diverse. As an example, see Figures 9 to 11By rotating the valve core 2, the first side hole 12a can be connected to the fifth through hole 13e, the first through hole 13a, and the second through hole 13b respectively, and the second side hole 12b can be connected to the second through hole 13b, the third through hole 13c, the fourth through hole 13d, and the fifth through hole 13e respectively. It can be seen that by rotating the valve core 2, the same first flow port 12 can be connected to most of the second flow ports 13, even if some second flow ports 13 are far away from the first flow port 12, they can still be connected to the flow hole 22 through the flow groove 21 on the valve core 2. Compared with the solution of only providing multiple first flow ports 12 on the valve body side wall 102 and using the flow channel on the valve core 2 to connect two adjacent first flow ports 12, or the solution of only providing multiple second flow ports 13 on the valve body bottom wall 101 and using the flow channel on the valve core 2 to connect two adjacent second flow ports 13, the multi-way valve 10 provided by the present application is more flexible and helps to simplify the structure of the multi-way valve 10.

[0093] The multi-way valve 10 provided in the embodiment of the present application includes a valve body 1 and a valve core 2, the valve body 1 has an installation cavity 11, the valve body 1 includes a valve body bottom wall 101 provided with a plurality of second flow ports 13 and a valve body side wall 102 provided with a plurality of first flow ports 12, the valve core 2 has a plurality of flow grooves 21, the flow grooves 21 have grooves facing the valve body side wall 102, and the side walls of the flow grooves 21 are provided with flow holes 22 facing the valve body bottom wall 101. The flow grooves 21 and the flow holes 22 constitute a connecting channel on the valve core 2, and when the valve core 2 is installed in the installation cavity 11, the connecting channel is used to connect the first flow port 12 and the second flow port 13. Specifically, the valve core 2 is rotatably installed in the installation cavity 11. By rotating the valve core 1, the connection between different first flow ports 12 and different second flow ports 13 can be adjusted, thereby realizing the switching of multiple conduction modes; at the same time, during the rotation of the valve core 2, the connection area between the flow hole 22 and the second flow port 13 can also be adjusted, thereby realizing the regulation of the flow from the first flow port 12 to the second flow port 13. Therefore, the multi-way valve 10 provided in the embodiment of the present application not only has the conduction mode switching function, but also has the function of flow regulation. At the same time, the connection relationship of the multi-way valve 10 is more flexible and diverse, which is conducive to simplifying the structure of the multi-way valve 10 and improving the integration of the multi-way valve 10 itself. When the multi-way valve 10 is applied to the thermal management system, the number of valves can be reduced and the integration of the thermal management system can be improved.

[0094] Please refer to Figure 8 and Fig.10 In some embodiments of the present application, the spacing distance between at least two adjacent second flow openings 13 is smaller than the length of the flow hole 22, and the flow hole 22 can simultaneously connect the at least two adjacent second flow openings 13, so that the flow hole 22 can be used to connect the flow groove 21 with the at least two second flow openings 13.

[0095] The spacing distance between two adjacent second flow openings 13 refers to the minimum distance between two adjacent second flow openings 13. Fig.10 , h shown in the figure refers to the spacing distance between the adjacent first through hole 13a and the fifth through hole 13e. When the number of the second flow openings 13 on the valve body bottom wall 101 is greater than 2, the spacing distance between two adjacent second flow openings 13 may be smaller than the length of the flow hole 22, or the spacing distance between every two adjacent second flow openings 13 may be smaller than the length of the flow hole 22, or the spacing distance between two partially adjacent second flow openings 13 may be smaller than the length of the flow hole 22.

[0096] The length of the flow hole 22 refers to the maximum size of the flow hole 22 along the circumference of the valve core 2. Fig.10 , H shown in the figure refers to the length of the flow hole 22. The distance between at least two adjacent second flow openings 13 is smaller than the length of the flow hole 22, and the distance between two adjacent second flow openings 13 may be smaller than the length of one of the flow holes 22, or the distance between two adjacent second flow openings 13 may be smaller than the length of all the flow holes 22.

[0097] As an example, see Fig.10 , the spacing distance h between the adjacent first through hole 13a and the fifth through hole 13e is less than the length H of the flow hole 22. In the conduction mode 2, the first side hole 12a is connected to the first through hole 13a and the fifth through hole 13e through the flow groove 21 and the flow hole 22 at the same time. Continuing to rotate the valve core 2 can adjust the flow ratio distribution from the first side hole 12a to the first through hole 13a and from the first side hole 12a to the fifth through hole 13e.

[0098] By setting the spacing distance between at least two adjacent second flow ports 13 to be smaller than the length of the flow hole 22, the first flow port 12 can be connected to at least two second flow ports 13 at the same time, thereby enriching the connection relationship of the multi-way valve 10. At the same time, the flow ratio distribution in the pipeline connected to different second flow ports 13 can also be adjusted by rotating the valve core 2.

[0099] Please refer to Figure 4 , Figure 7 and Figure 8 In some embodiments of the present application, a side sealing gasket 3 is further provided in the installation cavity 11, and the side sealing gasket 3 is clamped between the valve body side wall 102 and the valve core 2. A plurality of first avoidance openings 31 are opened on the side sealing gasket 3, and the first avoidance openings 31 correspond to the first flow openings 12 one by one.

[0100] The side seal 3 refers to a component used to seal the gap between the valve body side wall 102 and the valve core 2. Optionally, the side seal 3 is an elastic member, including but not limited to a silicone member, a rubber member, etc. The side seal 3 is installed in the installation cavity 11 and is located between the valve body side wall 102 and the valve core 2. Optionally, in order to prevent the side seal 3 from moving when the valve core 2 rotates, the side seal 3 is fixed to the valve body side wall 102, for example, the side seal 3 is bonded to the valve body side wall 102.

[0101] In order to prevent the side seal 3 from blocking the first flow opening 12 on the valve body side wall 102, a plurality of first avoidance openings 31 are also provided on the side seal 3, and the first avoidance openings 31 correspond to the first flow openings 12 one by one, that is, the first avoidance openings 31 on the side seal 3 and the first flow openings 12 on the valve body side wall 102 are not only equal in number but also correspond in position. However, it should be noted that the first avoidance openings 31 and the first flow openings 12 may be of the same shape and area, or may be of different shapes and area. Optionally, the area of ​​the first avoidance opening 31 is larger than the area of ​​the first flow opening 12.

[0102] Optionally, a surface of the side sealing gasket 3 facing the valve body side wall 102 is provided with a plurality of sealing ribs, and the sealing ribs extend along the height direction of the valve body side wall 102 , so as to further improve the sealing effect between the side sealing gasket 3 and the valve body side wall 102 .

[0103] By providing a side sealing gasket 3 between the valve body side wall 102 and the valve core 2 , the side sealing gasket 3 is used to seal the gap between the valve body side wall 102 and the valve core 2 , thereby preventing leakage and cross-flow between different flow grooves 21 .

[0104] Please refer to Figure 4 , Figure 7 and Figure 8 In some embodiments of the present application, a bottom sealing gasket 4 is further provided in the installation cavity 11, and the bottom sealing gasket 4 is clamped between the bottom wall 101 of the valve body and the valve core 2. A plurality of second avoidance ports 41 are opened on the bottom sealing gasket 4, and the second avoidance ports 41 correspond one-to-one to the second flow ports 13.

[0105] The bottom sealing gasket 4 refers to a component used to seal the gap between the bottom wall 101 of the valve body and the valve core 2. Optionally, the bottom sealing gasket 4 is an elastic member, including but not limited to a silicone member, a rubber member, etc. The bottom sealing gasket 4 is installed in the installation cavity 11 and is located between the bottom wall 101 of the valve body and the valve core 2. Optionally, in order to prevent the bottom sealing gasket 4 from moving when the valve core 2 rotates, the bottom sealing gasket 4 is fixed to the bottom wall 101 of the valve body, for example, the bottom sealing gasket 4 is bonded to the bottom wall 101 of the valve body.

[0106] In order to prevent the bottom sealing gasket 4 from blocking the second flow opening 13 on the bottom wall 101 of the valve body, a plurality of second avoidance openings 41 are also provided on the bottom sealing gasket 4, and the second avoidance openings 41 correspond to the second flow openings 13 one by one, that is, the second avoidance openings 41 on the bottom sealing gasket 4 and the second flow openings 13 on the bottom wall 101 of the valve body are not only equal in number but also correspond in position. However, it should be noted that the second avoidance openings 41 and the second flow openings 13 may be of the same shape and area, or may be of different shapes and area. Optionally, the area of ​​the second avoidance opening 41 is larger than the area of ​​the second flow opening 13.

[0107] By disposing a bottom sealing gasket 4 between the bottom wall 101 of the valve body and the valve core 2 , the bottom sealing gasket 4 is used to seal the gap between the bottom wall 101 of the valve body and the valve core 2 , thereby preventing cross-flow between different second flow ports 13 .

[0108] Please refer to Figure 4 , Figure 5 and Figure 6 In some embodiments of the present application, the valve core 2 includes a side plate 201 and an upper baffle plate 202 and a lower baffle plate 203 respectively arranged on opposite ends of the side plate 201, the side plate 201, the upper baffle plate 202 and the lower baffle plate 203 jointly define a flow groove 21, and the flow hole 22 is opened on the lower baffle plate 203.

[0109] The valve core 2 includes a side plate 201, an upper baffle plate 202 and a lower baffle plate 203. The side plate 201 refers to a plate body arranged upright relative to the bottom wall 101 of the valve body. The lower baffle plate 203 is a plate body arranged parallel to the bottom wall 101 of the valve body, and the lower baffle plate 203 is connected to one end of the side plate 201, specifically, the lower baffle plate 203 is connected to one end of the side plate 201 corresponding to the bottom wall 101 of the valve body, that is, the lower baffle plate 203 is arranged corresponding to the bottom wall 101 of the valve body. The upper baffle plate 202 is connected to the other end of the side plate 201. Optionally, the upper baffle plate 202 and the lower baffle plate 203 are arranged parallel to each other. Optionally, both the upper baffle plate 202 and the lower baffle plate 203 are circular plates. Optionally, the upper baffle plate 202 and the lower baffle plate 203 are arranged integrally with the side plate 201.

[0110] The side plate 201, the upper baffle plate 202 and the lower baffle plate 203 together define the flow slot 21, that is, the side plate 201, the upper baffle plate 202 and the lower baffle plate 203 constitute the side wall of the flow slot 21. The flow slot 21 has a flow hole 22 on the side wall corresponding to the valve body bottom wall 101, that is, the flow hole 22 is provided on the lower baffle plate 203. The side plate 201 can be set to a variety of different shapes, for example, the projection of the side plate 201 on the valve body bottom wall 101 can be a straight line, a Y-shape, a cross shape or a shuttle shape. According to the different shapes of the side plate 201, the side plate 201, the upper baffle plate 202 and the lower baffle plate 203 jointly define different numbers of flow grooves 21. For example, when the projection of the side plate 201 on the bottom wall 101 of the valve body is a straight line, the side plate 201, the upper baffle plate 202 and the lower baffle plate 203 can jointly define two flow grooves 21. When the projection of the side plate 201 on the bottom wall 101 of the valve body is a cross, the side plate 201, the upper baffle plate 202 and the lower baffle plate 203 can jointly define four flow grooves 21.

[0111] By configuring the valve core 2 to include a side plate 201 , an upper baffle plate 202 and a lower baffle plate 203 , the side plate 201 , the upper baffle plate 202 and the lower baffle plate 203 are used to define the flow groove 21 , so that the overall mass of the valve core 2 is relatively small and the valve core 2 is easy to rotate.

[0112] Please refer to Figure 4 , Figure 5 and Figure 6 In some embodiments of the present application, the valve core 2 also includes a reinforcing rib 204 located in the flow groove 21, and the reinforcing rib 204 is connected to the side plate 201, the upper baffle plate 202 and the lower baffle plate 203, especially arranged in an integrally formed manner.

[0113] The reinforcing rib 204 refers to a convex rib used to improve the overall mechanical strength of the valve core 2. Specifically, the reinforcing rib 204 is located in the circulation groove 21, and the reinforcing rib 204 is connected to the side plate 201, the upper baffle plate 202 and the lower baffle plate 203. Optionally, the reinforcing rib 204 is integrally arranged with the side plate 201, the upper baffle plate 202 and the lower baffle plate 203. Optionally, a plurality of reinforcing ribs 204 are arranged in each circulation groove 21, and the plurality of reinforcing ribs 204 are spaced apart in the circulation groove 21.

[0114] By setting the reinforcing ribs 204 connecting the side plate 201, the upper baffle plate 202 and the lower baffle plate 203 in the circulation groove 21, the overall mechanical strength of the valve core 2 is improved and the risk of deformation or breakage of the valve core 2 during rotation is reduced, especially when the reinforcing ribs 204 are arranged in an integral manner with the side plate 201, the upper baffle plate 202 and the lower baffle plate 203, the overall mechanical strength of the valve core 2 is further improved.

[0115] Please refer to Figure 3 and Figure 4In some embodiments of the present application, the valve body 1 further includes a valve cover 103 , which is connected to the valve body side wall 102 and is opposite to the valve body bottom wall 101 .

[0116] The valve cover 103 refers to a component for closing the installation cavity 11. The valve cover 103 is arranged on the valve body side wall 102, specifically, the valve cover 103 is arranged on the end of the valve body side wall 102 opposite to the valve body bottom wall 101, so that the valve cover 103 is opposite to the valve body bottom wall 101. Optionally, a sealing ring (not shown) is further sandwiched between the valve body side wall 102 and the valve cover 103. Optionally, the valve cover 103 is detachably arranged on the valve body side wall 102. Optionally, four first mounting ears 1031 are protrudingly provided on the edge of the valve cover 103, and the first mounting ears 1031 are provided with a first mounting hole, which can be a smooth hole or a threaded hole; four second mounting ears 1021 are protrudingly provided on the outer surface of the valve body side wall 102, and the second mounting ears 1021 correspond to the first mounting ears 1031 one by one, and the second mounting ears 1021 are provided with a second mounting hole, which is a threaded hole; the first mounting ears 1031 and the second mounting ears 1021 are connected by threaded fasteners 104, specifically, the threaded fasteners 104 pass through the first mounting holes and are threadedly connected to the second mounting holes.

[0117] Optionally, the valve cover 103 abuts against the valve core 2. Optionally, the valve core 2 includes a side plate 201, an upper baffle plate 202 and a lower baffle plate 203, and the valve cover 103 abuts against a side surface of the upper baffle plate 202 away from the side plate 201. By facilitating the valve cover 103 to abut against the valve core 2, the valve core 2 is restricted in the installation cavity 11.

[0118] By connecting the valve cover 103 to the end of the valve body side wall 102 opposite to the valve body bottom wall 101, the installation cavity 11 becomes a closed cavity, and the valve core 2 is installed in the installation cavity 11. The valve cover 103 can protect the valve core 2 and prevent the valve core 2 from escaping from the installation cavity 11.

[0119] Please refer to Figure 2 In some embodiments of the present application, the multi-way valve 10 further includes a driving member 5 , which is connected to the valve core 2 and is used to drive the valve core 2 .

[0120] The driving member 5 refers to a device for providing power. Here, the driving member 5 is drivingly connected to the valve core 2, and the driving member 5 is used to drive the valve core 2 to rotate. As an example, the driving member 5 is a motor, and the output shaft of the motor is connected to the valve core 2.

[0121] By providing the driving member 5 to drive the valve core 2 to rotate, the multi-way valve 10 can realize automatic switching of the conduction mode and / or adjust the flow.

[0122] Please refer to Figures 2 to 5In some embodiments of the present application, the driving member 5 is arranged outside the valve body 1, and a transmission shaft 6 that at least partially extends out of the valve body 1 is installed on the valve core 2, and the driving member 5 is drivingly connected to the transmission shaft 6.

[0123] The driving member 5 is arranged outside the valve body 1. As an example, the valve body 1 includes a valve body bottom wall 101, a valve body side wall 102 and a valve cover 103. The valve body bottom wall 101 and the valve cover 103 are respectively connected to the two ends of the valve body side wall 102, and are enclosed with the valve body side wall 102 to form a sealed installation cavity 11. The valve core 2 is installed in the installation cavity 11, and the driving member 5 is installed outside the installation cavity 11. Specifically, the driving member 5 is installed on the valve cover 103.

[0124] The valve core 2 is provided with a transmission shaft 6, the valve core 2 is provided in the installation cavity 11, the driving member 5 is provided outside the installation cavity 11, and at least a portion of the transmission shaft 6 extends out of the installation cavity 11 and is drivingly connected to the driving member 5. As an example, the transmission shaft 6 is integrally formed with the valve core 2, the driving member 5 is provided on the valve cover 103, a through hole (not shown) is provided on the valve cover 103, the free end of the transmission shaft 6 passes through the through hole and extends out of the installation cavity 11, and the free end of the transmission shaft 6 is drivingly connected to the driving member 5; optionally, the free end of the transmission shaft 6 is spline-connected to the driving member 5, wherein an external spline is provided on the free end of the transmission shaft 6, and an internal spline is provided on the output shaft of the driving member 5.

[0125] By setting the valve core 2 in the installation cavity 11, setting the driving member 5 outside the installation cavity 11, and using the driving member 5 to drive the transmission shaft 6 connected to the valve core 2 to drive the valve core 2 to rotate, this not only facilitates the installation and maintenance of the driving member 5, but also reduces the impact of the medium in the installation cavity 11 on the driving member 5.

[0126] Please refer to Figure 4 , Figure 7 and Figure 8 In some embodiments of the present application, a single first flow opening 12 is used to communicate with a single flow groove 21 , and the number of the second flow openings 13 is greater than the number of the first flow openings 12 .

[0127] Specifically, a single first flow port 12 is used to communicate with a single flow slot 21, that is, the number of the first flow ports 12 is equal to the number of the flow slots 21, and as the valve core 2 rotates, at different rotation positions, the positions of the first flow ports 12 correspond to the positions of the flow slots 21, respectively, thereby achieving a one-to-one communication between a single first flow port 12 and a single flow slot 21. As an example, see Fig.15There are three first flow openings 12, and the first flow openings 12 are arranged at equal angular intervals, that is, along the circumference of the valve body 1, the angles α formed by two adjacent first flow openings 12 and the central axis of the valve body 1 are equal, both are 120°; there are three flow grooves 21, and along the circumference of the valve core 2, the arc β of the grooves of each flow groove 21 is also equal, both are 120°; in this way, when the valve core 2 rotates, at different rotation positions, one first flow opening 12 is connected to one flow groove 21.

[0128] The number of the second flow ports 13 is greater than the number of the first flow ports 12, so that at least one first flow port 12 can be connected to different second flow ports 13 at different rotation positions, thereby enriching the communication relationship of the multi-way valve 10. It can be understood that the more the number of the second flow ports 13, the more complex and diverse the communication relationship of the multi-way valve 10. Optionally, the number of the second flow ports 13 is more than twice the number of the first flow ports 12, for example, the number of the first flow ports 12 is 2, and the number of the second flow ports 13 is 5.

[0129] By configuring a single first flow port 12 to communicate with a single flow groove 21 and increasing the number of second flow ports 13 , the communication relationship of the multi-way valve 10 can be enriched and the application scenarios of the multi-way valve 10 can be expanded.

[0130] Please refer to Figures 2 to 14 In some embodiments of the present application, the number of first flow openings 12 is two, and the two first flow openings 12 are respectively a first side hole 12a and a second side hole 12b which are relatively arranged on the side wall 102 of the valve body; the valve core 2 is provided with at least two flow grooves 21; the number of second flow openings 13 is five, and the five second flow openings 13 are respectively a first through hole 13a, a second through hole 13b, a third through hole 13c, a fourth through hole 13d and a fifth through hole 13e which are adjacently arranged in sequence around the central axis of the valve core 2, and the multi-way valve 10 is used to adjust the corresponding connection relationship between the first side hole 12a, the second side hole 12b and the first through hole 13a, the second through hole 13b, the third through hole 13c, the fourth through hole 13d and the fifth through hole 13e by rotating the angle of the valve core 2. Optionally, the first through hole 13a and the third through hole 13c are configured to be connected to the two first flow ports 12 respectively, and the second through hole 13b is an arc-shaped through hole; the spacing distance between the first through hole 13a and the fifth through hole 13e is less than the length of the flow hole 22.

[0131] When the multi-way valve 10 is used, the multi-way valve 10 can switch the conduction mode by rotating the valve core 2. The multi-way valve 10 has at least the following six conduction modes:

[0132] See also Fig. 9 In the conduction mode 1, the first side hole 12a is connected to the fifth through hole 13e, and the second side hole 12b is connected to the second through hole 13b.

[0133] See also Fig.10 In conduction mode 2, the first side hole 12a is connected to the first through hole 13a and the fifth through hole 13e, and the second side hole 12b is connected to the second through hole 13b. During the rotation of the valve core 2, the flow ratio distribution of the first through hole 13a and the fifth through hole 13e can also be adjusted.

[0134] See also Fig.11 In the conduction mode three, the first side hole 12a is connected to the first through hole 13a, and the second side hole 12b is connected to the second through hole 13b.

[0135] See also Fig.12 In conduction mode four, the first side hole 12a is connected to the first through hole 13a, and the second side hole 12b is connected to the third through hole 13c.

[0136] See also Fig.13 In conduction mode five, the first side hole 12a is connected to the second through hole 13b, and the second side hole 12b is connected to the fourth through hole 13d.

[0137] See also Fig.14 In conduction mode six, the first side hole 12a is connected to the second through hole 13b, and the second side hole 12b is connected to the fifth through hole 13e.

[0138] The multi-way valve 10 provided in the embodiment of the present application can be used as a six-way valve, which can not only switch between multiple conduction modes, but also regulate flow.

[0139] Please refer to Figures 16 to 22 , an embodiment of the present application provides a thermal management system, including the above-mentioned multi-way valve 10.

[0140] The thermal management system is installed in the vehicle to distribute heat between different systems, such as the battery system, motor system, etc. With the development of new energy vehicles, the thermal management system on new energy vehicles is constantly upgrading, the number of loop states that require control on the vehicle is increasing, and the requirements for valves are also constantly upgrading. In order to meet the thermal management needs of new energy vehicles, at this stage, the needs of multiple loops are mainly achieved by connecting multiple valves in parallel or in series, which makes the overall space occupied by the valve larger and the degree of integration of the thermal management system is low.

[0141] See also Fig.16 The thermal management system includes a battery circulation loop and other circulation loops 50, and the other circulation loops 50 include but are not limited to at least one of an air conditioning loop and a motor loop. The thermal management system also includes a multi-way valve 10, which is connected to the battery circulation loop and other circulation loops 50. By adjusting the conduction mode of the multi-way valve 10, the conduction and shutoff of different circulation loops can be achieved.

[0142] Specifically, see Fig.16 The battery circulation loop includes a first branch, a second branch and a third branch, wherein the first branch is arranged in parallel with the second branch, the first branch and the second branch are both connected in series with the third branch, the first branch flows through the battery 20, the third branch flows through the PTC heating body 40 and the third branch is connected to a water pump 30. One end of the first branch is connected to the third branch and the other end is connected to a second flow port 13 on the multi-way valve 10, one end of the second branch is connected to the third branch and the other end is connected to another second flow port 13 on the multi-way valve 10. The third branch is connected to other circulation loops 50.

[0143] The multi-way valve 10 is used as follows. Figures 2 to 14 The six-way valve shown in the figure is used as an example. Figures 16 to 22 There are 7 circulation ports on the six-way valve, namely the first side hole 12a, the second side hole 12b, the first through hole 13a, the second through hole 13b, the third through hole 13c, the fourth through hole 13d and the fifth through hole 13e. The first side hole 12a, the second side hole 12b, the second through hole 13b and the third through hole 13c are respectively connected to other circulation loops 50; the first through hole 13a and the fourth through hole 13d are used to connect to the same external pipeline, specifically, the first through hole 13a and the fourth through hole 13d are both connected to the other end of the first branch; the fifth through hole 13e is connected to the other end of the second branch.

[0144] The six-way valve can realize the switching of the conduction mode by rotating the valve core 2, and the different circulation loops in the thermal management system can realize the switching of conduction and shutdown.

[0145] See also Fig.17 When the six-way valve is in conduction mode 1, other circulation loops 50 in the thermal management system are connected through the second side hole 12b and the second through hole 13b (the bold solid line in the figure represents conduction), and in the battery circulation loop, the second branch and the third branch are connected through the first side hole 12a and the fifth through hole 13e, and the first branch flowing through the battery 20 is cut off, so that the coolant does not flow through the battery 20.

[0146] See also Fig.18 In conduction mode 2, other circulation loops 50 in the thermal management system are conducted through the second side hole 12b and the second through hole 13b. In the battery circulation loop, the second branch and the third branch are conducted through the first side hole 12a and the fifth through hole 13e, and the first branch and the third branch are conducted through the first side hole 12a and the first through hole 13a. The flow of coolant in the first branch and the second branch is distributed proportionally.

[0147] See also Fig.19In conduction mode three, other circulation loops 50 in the thermal management system are conducted through the second side hole 12b and the second through hole 13b, and in the battery circulation loop, the first branch and the third branch are conducted through the first side hole 12a and the first through hole 13a, and the second branch is shut off.

[0148] See also Fig. 20 In conduction mode four, other circulation loops 50 in the thermal management system are connected to the third through hole 13c through the second side hole 12b, and in the battery circulation loop, the first branch and the third branch are connected to each other through the first side hole 12a and the first through hole 13a, and the second branch is closed.

[0149] See also Fig.21 In conduction mode five, other circulation loops 50 in the thermal management system are connected to the second through hole 13b through the first side hole 12a, and in the battery circulation loop, the first branch and the third branch are connected to the fourth through hole 13d through the second side hole 12b, and the second branch is turned off.

[0150] See also Fig. 22 In conduction mode six, other circulation loops 50 in the thermal management system are connected to the second through hole 13b through the first side hole 12a, and in the battery circulation loop, the second branch and the third branch are connected to the fifth through hole 13e through the second side hole 12b, the first branch is turned off, and the coolant does not flow through the battery 20.

[0151] The embodiment of the present application provides the multi-way valve 100, eliminating the need to use multiple valves, thereby improving the integration level of the thermal management system.

[0152] An embodiment of the present application also provides a vehicle, which includes the above-mentioned thermal management system.

[0153] The vehicle may be, but is not limited to, a fuel vehicle, a gas vehicle or a new energy vehicle. The new energy vehicle may be, but is not limited to, a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc.

[0154] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A multi-way valve, characterized in that: include: A valve body having a mounting cavity, wherein the valve body comprises a valve body bottom wall and a valve body side wall; A valve core is rotatably disposed in the installation cavity; Among them, along the circumference of the valve body, a plurality of first flow ports are spaced apart on the side wall of the valve body, and a plurality of second flow ports are spaced apart on the bottom wall of the valve body; a plurality of flow grooves are formed on the valve core, and the groove openings of the flow grooves face the side wall of the valve body, and the grooves are used to connect the first flow ports with the flow grooves; each of the flow grooves is provided with a flow hole on the side wall corresponding to the side of the bottom wall of the valve body, and the flow hole is used to connect the flow groove with at least one of the second flow ports.

2. The multi-way valve according to claim 1, characterized in that: The spacing distance between at least two adjacent second flow openings is smaller than the length of the flow hole, and the flow hole can simultaneously connect the at least two adjacent second flow openings, so that the flow hole can connect the flow groove with the at least two second flow openings.

3. The multi-way valve according to claim 1 or 2, characterized in that: A side sealing gasket is also arranged in the installation cavity, and the side sealing gasket is clamped between the side wall of the valve body and the valve core. A plurality of first avoidance openings are opened on the side sealing gasket, and the first avoidance openings correspond to the first flow openings one by one.

4. The multi-way valve according to any one of claims 1 to 3, characterized in that: A bottom sealing gasket is also arranged in the installation cavity, and the bottom sealing gasket is clamped between the bottom wall of the valve body and the valve core. A plurality of second avoidance openings are opened on the bottom sealing gasket, and the second avoidance openings correspond to the second flow openings one by one.

5. The multi-way valve according to any one of claims 1 to 4, characterized in that: The valve core includes a side plate and an upper baffle and a lower baffle respectively arranged on opposite ends of the side plate, the side plate, the upper baffle and the lower baffle jointly define the flow slot, and the flow hole is opened on the lower baffle.

6. The multi-way valve according to claim 5, characterized in that: The valve core further comprises a reinforcing rib located in the circulation groove, wherein the reinforcing rib is connected to the side plate, the upper baffle plate and the lower baffle plate, and is particularly arranged in an integrally formed manner.

7. The multi-way valve according to any one of claims 1 to 6, characterized in that: The valve body further comprises a valve cover, which is connected to the side wall of the valve body and is opposite to the bottom wall of the valve body.

8. The multi-way valve according to any one of claims 1 to 7, characterized in that: The multi-way valve further comprises a driving member, wherein the driving member is connected to the valve core and is used for driving the valve core.

9. The multi-way valve according to claim 8, characterized in that: The driving member is arranged outside the valve body, a transmission shaft at least partially extending out of the valve body is installed on the valve core, and the driving member is drivingly connected to the transmission shaft.

10. The multi-way valve according to any one of claims 1 to 9, characterized in that: The single first flow opening is used to communicate with the single flow groove, and the number of the second flow openings is greater than the number of the first flow openings.

11. The multi-way valve according to claim 10, characterized in that: The number of the first flow openings is two, and the two first flow openings are respectively a first side hole and a second side hole arranged opposite to each other on the side wall of the valve body; the valve core is provided with at least two flow grooves; the number of the second flow openings is five, and the five second flow openings are respectively a first through hole, a second through hole, a third through hole, a fourth through hole and a fifth through hole arranged adjacent to each other in sequence around the central axis of the valve core, and the multi-way valve is used to adjust the corresponding connection relationship between the first side hole, the second side hole and the first through hole, the second through hole, the third through hole, the fourth through hole and the fifth through hole by rotating the angle of the valve core.

12. The multi-way valve according to claim 11, characterized in that: The first through hole and the third through hole are configured to be connected to the two first flow ports respectively, and the second through hole is an arc-shaped through hole; the spacing distance between the first through hole and the fifth through hole is smaller than the length of the flow hole.

13. A thermal management system, characterized in that: It comprises a multi-way valve according to any one of claims 1 to 12.

14. A vehicle, characterized in that: Comprising a thermal management system according to claim 13.

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