Multi-way valve structure and vehicle thermal management system

Abstract

The utility model discloses a multi-way valve structure and a vehicle thermal management system, and relates to the technical field of multi-way valve structure design. The multi-way valve structure comprises a multi-way valve body, and the multi-way valve body is a single-layer structural body arranged in a liquid distribution plate of the vehicle thermal management system; the multi-way valve body is provided with a plurality of valve ports which are distributed at intervals, and different valve ports can be connected with different heat management loops; a plurality of independently-arranged liquid path channels are formed in the multi-way valve body, and each liquid path channel is used for communicating two different valve ports so as to conduct a heat management loop connected with the two valve ports. The multi-way valve structure not only is simple, but also can meet the use requirements of a thermal management system comprising a plurality of loops.

Description

Technical Field

[0001] The present disclosure generally relates to the technical field of multi-way valve structure design, and more particularly to a multi-way valve structure and a vehicle thermal management system. Background Art

[0002] Multi-port valves play a vital role in vehicle thermal management systems. They not only improve system performance and efficiency but also help reduce cost and weight, both key factors in improving overall vehicle performance. As the automotive industry continues to evolve, multi-port valve technology is also advancing, and their application in future thermal management systems will become even more widespread.

[0003] However, the current multi-way valve structure is generally an eight-way or nine-way valve with a small number of valve ports, which cannot be applied to thermal management systems with more than five circuits. Therefore, in order to adapt to the interconnection of multiple circuits, most of them achieve the interconnection of circuits by setting multiple multi-way valves or relying on complex valve core structures, such as multi-layer valve cores, resulting in high production costs and very complicated installation. For this reason, we propose a multi-way valve structure to solve the above problems. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a multi-way valve structure and a vehicle thermal management system.

[0005] In a first aspect, the present application provides a multi-way valve structure, comprising:

[0006] A multi-way valve body, which is a single-layer structure disposed in a liquid separation plate of a vehicle thermal management system; the multi-way valve body has a plurality of valve ports spaced apart, and different valve ports can be connected to different thermal management circuits;

[0007] A plurality of independently arranged fluid channels are formed inside the multi-way valve body, and each of the fluid channels is used to connect two different valve ports to conduct the thermal management circuit connected to the two valve ports.

[0008] According to the technical solution provided in this application, the multi-way valve body includes: a valve body, wherein the valve body and the liquid separation plate are an integrated structure;

[0009] A first installation cavity is formed in the middle of the valve body, and an opening of the first installation cavity is located at the top of the valve body; wherein a plurality of the valve openings are distributed along the circumference of the valve body and are all connected to the first installation cavity;

[0010] The valve core is rotatably arranged in the first installation cavity, and a driving connection end is provided on the top of the valve core, and the driving connection end is used for transmission connection with the actuator; wherein, multiple liquid channels are arranged inside the valve core.

[0011] According to the technical solution provided in this application, the multi-way valve body further includes: a valve core sealing ring provided between the valve body and the valve core;

[0012] The valve core sealing ring is provided with a plurality of openings corresponding to the valve ports along its circumference, and a sealing column section is provided between every two adjacent openings;

[0013] A plurality of tooth-shaped protrusions are arranged on the outside of the sealing column along a first direction. The tooth-shaped protrusions extend along a second direction, and the second direction is perpendicular to the first direction.

[0014] According to the technical solution provided in this application, the multi-way valve body further includes: a valve body upper cover; the valve body upper cover is arranged on the top of the valve body, and the valve body upper cover is connected to the top end surface of the valve body through a connecting piece;

[0015] A through hole is provided in the middle of the valve body upper cover, and the drive connection end extends through the through hole in a direction away from the multi-way valve body and is connected to the actuator.

[0016] According to the technical solution provided in this application, a first groove is also provided on the top of the valve body, and the first groove is arranged around the periphery of the cavity opening of the first installation cavity; a cover seal is provided in the first groove, and the cover seal is used to seal the valve body upper cover and the valve body.

[0017] According to the technical solution provided in this application, the valve core includes: a first end plate and a second end plate;

[0018] A plurality of arc-shaped plates are provided between the first end plate and the second end plate; the arc-shaped plates cooperate with each other to separate a plurality of liquid channels on the second end plate.

[0019] According to the technical solution provided in the present application, the multi-way valve body has fourteen valve ports, which are sequentially from the first valve port to the fourteenth valve port; the number of liquid channels formed is seven, which are sequentially from the first liquid channel to the seventh liquid channel. When the valve core rotates, each of the liquid channels can be connected to different valve ports respectively.

[0020] According to the technical solution provided in the present application, the first liquid circuit can be connected to the first valve port and the second valve port; the second liquid circuit can be connected to the third valve port and the fourteenth valve port; the third liquid circuit can be connected to the fourth valve port and the fifth valve port; the fourth liquid circuit can be connected to the sixth valve port and the eleventh valve port; the fifth liquid circuit can be connected to the seventh valve port and the eighth valve port; the sixth liquid circuit can be connected to the tenth valve port and the ninth valve port; and the seventh liquid circuit can be connected to the twelfth valve port and the thirteenth valve port.

[0021] According to the technical solution provided in the present application, the valve body is in the shape of a hexagonal prism, and each prism side has at least one valve port.

[0022] In a second aspect, the present application provides a vehicle thermal management system that utilizes the above-mentioned multi-way valve structure.

[0023] To sum up, the present technical solution specifically discloses a multi-way valve structure and a vehicle thermal management system; wherein, the multi-way valve structure includes: a multi-way valve body, which is a single-layer structure arranged in the liquid separation plate of the vehicle thermal management system; the multi-way valve body has a number of valve ports distributed at intervals, and different valve ports can be connected to different thermal management circuits; a plurality of independently arranged liquid channels are formed inside the multi-way valve body, and each liquid channel is used to connect two different valve ports to conduct the thermal management circuit connected to the two valve ports.

[0024] The existing multi-way valves have a small number of valve ports and have too many limitations in use. Therefore, in order to meet the needs of connecting multiple circuits, most of them achieve the connection of multiple circuits by setting up multiple multi-way valves or relying on complex multi-layer valve cores, which leads to high production costs and very complicated installation. In this application, a multi-way valve body with a single-layer structure is proposed. Since multiple liquid channels are formed inside the multi-way valve body, the conduction of multiple circuits can be ensured, which reduces the production cost and the complexity of connection; and the multi-way valve body can be directly set in the liquid separation plate of the vehicle thermal management system to form an integrated design, which further reduces the difficulty of installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0026] Figure 1 This is a schematic diagram of the explosion structure of a multi-way valve structure.

[0027] Figure 2 It is a schematic diagram of the overall structure of a multi-way valve structure.

[0028] Figure 3 It is a side view of the valve body structure in a multi-way valve structure.

[0029] Figure 4 This is a schematic diagram of the coordination between the liquid path and valve port in a multi-way valve structure.

[0030] Figure 5 It is a side view of the valve core structure in a multi-way valve structure.

[0031] Figure 6 This is a schematic diagram of the internal fluid path of the valve core in a multi-way valve structure.

[0032] Figure 7 This is a schematic diagram of the core sealing ring structure in a multi-way valve structure.

[0033] Reference numerals in the figure: 1, multi-way valve body; 2, valve port; 3, fluid path; 4, valve body; 41, first mounting cavity; 5, valve core; 51, drive connection end; 52, first end plate; 53, second end plate; 54, arc plate; 6, core sealing ring; 61, opening; 62, sealing column section; 63, tooth-shaped protrusion; 7, valve body cover; 8, connecting piece; 9, first groove; 10, cover body seal; 201, first valve port; 202, second valve port; 203, third valve port; 20 4. Fourth valve port; 205. Fifth valve port; 206. Sixth valve port; 207. Seventh valve port; 208. Eighth valve port; 209. Ninth valve port; 210. Tenth valve port; 211. Eleventh valve port; 212. Twelfth valve port; 213. Thirteenth valve port; 214. Fourteenth valve port; 301. First liquid path; 302. Second liquid path; 303. Third liquid path; 304. Fourth liquid path; 305. Fifth liquid path; 306. Sixth liquid path; 307. Seventh liquid path. DETAILED DESCRIPTION

[0034] The present application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the relevant invention and are not intended to limit the invention. It should also be noted that, for ease of description, only portions relevant to the invention are shown in the accompanying drawings.

[0035] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0036] Example 1

[0037] In order to make the technical solutions of the embodiments of the present application clearer and easier to understand, the application background of the embodiments of the present application is introduced below.

[0038] Multi-port valves play a vital role in vehicle thermal management systems. They not only improve system performance and efficiency but also help reduce cost and weight, both key factors in improving overall vehicle performance. As the automotive industry continues to evolve, multi-port valve technology is also advancing, and their application in future thermal management systems will become even more widespread.

[0039] The current multi-way valve structure has the following problems: (1) The current multi-way valves are mostly eight-way or nine-way valves, etc., with a small number of valve ports, and cannot be applied to thermal management systems with more than five circuits. For example, when the vehicle thermal management system contains: battery circuit, electric drive circuit, battery cooler circuit, radiator circuit, water-cooled condenser circuit and other circuits, the multi-way valve with fewer valve ports cannot be used; (2) In order to achieve complex functions, the existing multi-way valve has a complex valve core structure, for example, a multi-layer valve core is designed, resulting in high costs; (3) The existing multi-way valve requires an independent valve body, and the valve core, actuator and other components are all installed on the valve body, and then the valve body is installed on the liquid separation plate of the thermal management integrated module by bolts. However, the liquid separation plate itself can be used as a valve body, and an independent multi-way valve body will make the parts cost higher.

[0040] In view of this, please refer to Figure 1 and Figure 4 The exploded schematic diagram of a multi-way valve structure provided by this embodiment and a schematic diagram of the coordination between the liquid circuit and the valve port are shown. The multi-way valve structure includes: a multi-way valve body 1, which is a single-layer structure disposed in a liquid separation plate of a vehicle thermal management system; the multi-way valve body 1 has a plurality of valve ports 2 distributed at intervals, and different valve ports 2 can be connected to different thermal management circuits;

[0041] A plurality of independently arranged fluid channels 3 are formed inside the multi-way valve body 1 , and each fluid channel 3 is used to connect two different valve ports 2 to conduct the thermal management circuit connected to the two valve ports 2 .

[0042] In the embodiment of the present application, in order to facilitate the rational distribution of energy and realize the heating or cooling needs of different modules within the vehicle thermal management system, different thermal management units will be coupled, and the circuits within each thermal management unit will exchange heat through different connection methods, so a multi-way valve structure that can realize multi-circuit conduction is required.

[0043] Specifically, the multi-way valve structure includes a multi-way valve body 1, and the multi-way valve body 1 is integrated in the liquid separation plate (also known as the flow channel plate) of the vehicle thermal management system, and is not arranged independently as a separate valve body; the multi-way valve body 1 has a number of valve ports 2 that are spaced apart and connected to the interior of the multi-way valve body 1. Different valve ports 2 can be connected to different thermal management circuits, for example, they can be selectively connected to a battery circuit, an electric drive circuit, or a warm air circuit, etc., so that different circuits can be connected through the liquid path channels inside the multi-way valve body 1 to form different heat exchange modes to meet the functional requirements of the vehicle thermal management system; wherein, the number of valve ports 2 and liquid path channels 3 matches each other, and is closely related to the actual vehicle thermal management system, and is not specifically limited here; in the embodiment of the present application, the design goal is to be able to meet the connection of more than five circuits.

[0044] In a preferred embodiment, see Figure 1 and Figure 3 The multi-way valve body 1 includes: a valve body 4, the valve body 4 and the liquid separation plate are integrated structures;

[0045] A first installation cavity 41 is formed in the middle of the valve body 4, and the opening of the first installation cavity 41 is located at the top of the valve body 4; wherein, a plurality of valve ports 2 are distributed along the circumference of the valve body 4, and are all connected to the first installation cavity 41;

[0046] The valve core 5 is rotatably arranged in the first installation cavity 41, and a driving connection end 51 is provided on the top thereof, and the driving connection end 51 is used for transmission connection with the actuator; wherein, multiple liquid channels 3 are arranged inside the valve core 5.

[0047] Specifically, the valve body 4 is in the shape of a hexagonal prism, and each prism side has at least one valve port 2. In this way, each valve port 2 can be distributed at intervals and integrated into a regular structure without occupying too much installation space.

[0048] The first installation cavity 41 in the valve body 4 is used to install the rotatable valve core 5, providing an installation space for it. At the same time, the aforementioned multiple liquid channels 3 are arranged inside the valve core 5. When the actuator drives the valve core 5 to rotate, different liquid channels 3 will follow its rotation angle to form a conductive liquid path between different valve ports 2; accordingly, the circuit connected to the valve port 2 will flow into different circuits according to the liquid channel 3 corresponding to the valve port 2 at this time.

[0049] It should be explained that since different liquid channels 3 have different bending radii, it is possible to connect two adjacent valve ports 2 or to connect separated valve ports 2. Therefore, for one valve port 2, the liquid channel 3 corresponding to the valve port 2 is different, so the valve port 2 connected thereto will naturally be different, and the connected circuit will also change accordingly.

[0050] In a preferred embodiment, see Figure 1 and Figure 7 , the multi-way valve body 1 further includes: a valve core sealing ring 6 provided between the valve body 4 and the valve core 5;

[0051] The valve core sealing ring 6 is provided with a plurality of openings 61 corresponding to the valve port 2 along its circumference, and a sealing column section 62 is provided between every two adjacent openings 61;

[0052] A plurality of tooth-shaped protrusions 63 are arranged on the outside of the sealing column section 62 along a first direction. The tooth-shaped protrusions 63 extend along a second direction that is perpendicular to the first direction.

[0053] Specifically, the valve core sealing ring 6 is used to seal the valve body 4 and the valve core 5 to ensure the stable flow of the medium in the subsequent communication circuit; wherein, the valve core sealing ring 6 is an annular structural component, and a plurality of sealing column sections 62 are set between the two sealing rings at the upper and lower ends, thereby separating a plurality of openings 61, and each opening 61 is set corresponding to the valve port 2.

[0054] In order to ensure the sealing and wear resistance of the valve core sealing ring 6, a plurality of tooth-shaped protrusions 63 are distributed on the outside of the sealing column section 62 and the two sealing rings at the upper and lower ends. Among them, the tooth-shaped protrusions 63 on the sealing ring are arranged circumferentially around the sealing ring, and a plurality of tooth-shaped protrusions 63 on the outside of the sealing column section 62 are arranged along a first direction, and the first direction here can be a horizontal direction.

[0055] In addition, since the two sealing rings at the upper and lower ends are circular rings, and the first mounting cavity 41 is also a circular space, in order to ensure that the sealing column section 62 can fit tightly with the valve body 4, the sealing column section 62 also has a certain curvature, so the first direction can essentially be along the bending direction of the sealing column section 62, and the second direction is a vertical direction, and the number of tooth-shaped protrusions 63 is not specifically limited here.

[0056] In a preferred embodiment, see Figure 1 and Figure 2 The multi-way valve body 1 further includes: a valve body upper cover 7; the valve body upper cover 7 is arranged on the top of the valve body 4, and the valve body upper cover 7 is connected to the top end surface of the valve body 4 through a connecting piece 8;

[0057] A through hole is defined in the middle of the valve body upper cover 7 , and the drive connection end 51 extends through the through hole in a direction away from the multi-way valve body 1 and is connected to the actuator.

[0058] Specifically, the valve body cover 7 is installed on the valve body 4 through the connecting piece 8, thereby sealing the first installation cavity 41. A through hole corresponding to the drive connection end 51 is opened in the middle of the valve body cover 7, so that it can extend outward from the through hole and connect with an external actuator; the connecting piece 8 used here can be a bolt or other connecting piece, which is not specifically limited here; in addition, a plurality of regular protrusions are formed on the end surface of the valve body cover 7 away from the valve body 4, which can enhance the structural strength of the valve body cover 7 to a certain extent.

[0059] In a preferred embodiment, see Figure 1 A first groove 9 is also provided on the top of the valve body 4, and the first groove 9 is arranged around the periphery of the cavity opening of the first installation cavity 41; a cover seal 10 is provided in the first groove 9, and the cover seal 10 is used to seal the valve body upper cover 7 and the valve body 4.

[0060] Specifically, in order to ensure the tightness of the connection between the valve body 4 and the valve body cover 7, a first groove 9 is opened on the top of the valve body 4 and is arranged around the periphery of the cavity opening of the first installation cavity 41, and a cover body seal 10 is arranged in the first groove 9, thereby improving the sealing performance of the valve body 4 and the valve body cover 7.

[0061] In a preferred embodiment, see Figure 5 , the valve core 5 includes: a first end plate 52 and a second end plate 53;

[0062] A plurality of arc-shaped plates 54 are provided between the first end plate 52 and the second end plate 53 . The arc-shaped plates 54 cooperate with each other to separate a plurality of liquid channels 3 on the second end plate 53 .

[0063] Specifically, the structure of the valve core 5 is composed of a first end plate 52, a second end plate 53 and a plurality of arc plates 54 arranged in an upper and lower position; wherein, the formation of the liquid channel 3 is achieved by different curved plates 54 or the bending directions and bending angles of the bending sections on the same curved plate 54 to realize different forms of the liquid channel 3.

[0064] In a preferred embodiment, see Figure 4 The multi-way valve body 1 has fourteen valve ports 2, which are the first valve port 201 to the fourteenth valve port 214 in sequence; seven liquid channels 3 are formed, which are the first liquid channel 301 to the seventh liquid channel 307 in sequence. When the valve core 5 rotates, each liquid channel 3 can be connected to a different valve port 2 respectively.

[0065] Furthermore, in an embodiment of the present application, the multi-way valve body 1 has fourteen valve ports 2 and seven liquid channels 3. When the actuator drives the valve core 5 to rotate, different liquid channels 3 will rotate to the corresponding valve ports 2 according to the requirements of the circuit conduction, and different components in the circuit will achieve liquid conduction, heat exchange can be carried out, and the functional requirements of the thermal management system can be met.

[0066] In a preferred embodiment, see Figure 4 and Figure 6 The first liquid circuit 301 can be connected to the first valve port 201 and the second valve port 202; the second liquid circuit 302 can be connected to the third valve port 203 and the fourteenth valve port 214; the third liquid circuit 303 can be connected to the fourth valve port 204 and the fifth valve port 205; the fourth liquid circuit 304 can be connected to the sixth valve port 206 and the eleventh valve port 211; the fifth liquid circuit 305 can be connected to the seventh valve port 207 and the eighth valve port 208; the sixth liquid circuit 306 can be connected to the tenth valve port 210 and the ninth valve port 209; the seventh liquid circuit 307 can be connected to the twelfth valve port 212 and the thirteenth valve port 213.

[0067] Specifically, in the embodiments of this application, see Figure 4 Since the valve core 5 is rotatably connected to the valve body 4, the connection relationship between the liquid path and the valve port is not unique in nature. Therefore, the first liquid path 301 can be connected to the first valve port 201 and the second valve port 202, that is, the first liquid path 301 can realize liquid flow connection between two adjacent valve ports; the second liquid path 302 can be connected to the third valve port 203 and the fourteenth valve port 214, that is, the second liquid path 302 can realize connection between two valve ports 2 separated by two valve ports 2; the fourth liquid path 304 can be connected to the sixth valve port 206 and the eleventh valve port 211, that is, the fourth liquid path 304 can realize connection between two valve ports 2 separated by four valve ports 2; at least the third liquid path 303, the fifth liquid path 305, the sixth liquid path 306 and the seventh liquid path 307 can all realize liquid flow connection between two adjacent valve ports;

[0068] It should be explained that the valve port 2 is further limited to the first to fourteenth valve ports only for the convenience of explaining the coordination between the liquid circuit and the valve port 2. In essence, the valve port 2 has no essential distinction; accordingly, the further limitation of the liquid channel 3 is the same; in addition, there is a corresponding coordination relationship between each liquid circuit (in actual application, multiple circuits need to be connected simultaneously). In the early design stage, according to the specific design of the vehicle thermal management system, the conduction relationship of each circuit can be matched with the required working mode to ensure that the multi-way valve body 1 can adapt to the conduction of multiple circuits. Therefore, this application does not impose too many restrictions on the liquid circuit design.

[0069] Example 2

[0070] Based on the multi-way valve structure described in Example 1, the embodiment of the present application proposes a vehicle thermal management system, which has at least four thermal management units, namely a battery thermal management unit, a motor thermal management unit, a heater thermal management unit and an air conditioning thermal management unit, and multiple circuits in each thermal management unit are connected to different valve ports 2 according to design requirements, and can be connected through the multi-way valve structure; under the drive of the actuator, the valve core 5 is able to rotate, and then different valve ports 2 are connected with valve ports 2 in different positions through changes in the corresponding liquid channels 3, so as to realize switching between multiple working modes.

[0071] In summary, by integrating the multi-way valve body 1 on the liquid separation plate, based on the interconnection function of multiple system loops, a rich combination of working modes is provided for the vehicle thermal management system, which can realize complex system functions and has the advantages of simple design and low production cost.

[0072] The above description is merely a preferred embodiment of the present application and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of the invention herein is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features, but also encompasses other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the inventive concept. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features having similar functions disclosed in this application.

Claims

1. A multi-way valve structure, characterized in that: include: A multi-way valve body (1), the multi-way valve body (1) being a single-layer structure arranged in a liquid separation plate of a vehicle thermal management system; the multi-way valve body (1) having a plurality of valve ports (2) distributed at intervals, different valve ports (2) being able to be connected to different thermal management circuits; A plurality of independently arranged liquid channels (3) are formed inside the multi-way valve body (1), and each of the liquid channels (3) is used to connect two different valve ports (2) to conduct the thermal management circuit connected to the two valve ports (2).

2. A multi-way valve structure according to claim 1, characterized in that: The multi-way valve body (1) comprises: a valve body (4), wherein the valve body (4) and the liquid separation plate are integrated into a structure; A first installation cavity (41) is formed in the middle of the valve body (4), and the cavity opening of the first installation cavity (41) is located at the top of the valve body (4); wherein a plurality of the valve openings (2) are distributed along the circumference of the valve body (4) and are all connected to the first installation cavity (41); A valve core (5), the valve core (5) is rotatably arranged in the first installation cavity (41), and a driving connection end (51) is provided on the top of the valve core, and the driving connection end (51) is used for transmission connection with the actuator; wherein, a plurality of the liquid channels (3) are arranged inside the valve core (5).

3. A multi-way valve structure according to claim 2, characterized in that: The multi-way valve body (1) further comprises: a valve core sealing ring (6) arranged between the valve body (4) and the valve core (5); The valve core sealing ring (6) is provided with a plurality of openings (61) corresponding to the valve port (2) along its circumference, and a sealing column section (62) is provided between each two adjacent openings (61); A plurality of tooth-shaped protrusions (63) are arranged on the outside of the sealing column section (62) along a first direction, and the tooth-shaped protrusions (63) extend along a second direction, which is perpendicular to the first direction.

4. A multi-way valve structure according to claim 2, characterized in that: The multi-way valve body (1) further comprises: a valve body upper cover (7); the valve body upper cover (7) is arranged on the top of the valve body (4), and the valve body upper cover (7) is connected to the top end surface of the valve body (4) via a connecting piece (8); The valve body upper cover (7) has a through hole in the middle, and the drive connection end (51) extends through the through hole in a direction away from the multi-way valve body (1) and is connected to the actuator.

5. A multi-way valve structure according to claim 4, characterized in that: The top of the valve body (4) is also provided with a first groove (9), which is arranged around the periphery of the opening of the first installation cavity (41); a cover seal (10) is provided in the first groove (9), and the cover seal (10) is used to seal the valve body upper cover (7) and the valve body (4).

6. A multi-way valve structure according to claim 2, characterized in that: The valve core (5) comprises: a first end plate (52) and a second end plate (53); A plurality of arc-shaped plates (54) are provided between the first end plate (52) and the second end plate (53); the plurality of arc-shaped plates (54) cooperate with each other to separate a plurality of liquid channels (3) on the second end plate (53).

7. A multi-way valve structure according to claim 6, characterized in that: The multi-way valve body (1) has fourteen valve ports (2), which are sequentially from the first valve port (201) to the fourteenth valve port (214); the number of the formed liquid channels (3) is seven, which are sequentially from the first liquid channel (301) to the seventh liquid channel (307); under the rotation of the valve core (5), each of the liquid channels (3) can be connected to a different valve port (2).

8. A multi-way valve structure according to claim 7, characterized in that: The first liquid circuit (301) can be connected to the first valve port (201) and the second valve port (202); the second liquid circuit (302) can be connected to the third valve port (203) and the fourteenth valve port (214); the third liquid circuit (303) can be connected to the fourth valve port (204) and the fifth valve port (205); the fourth liquid circuit (304) can be connected to the sixth valve port (206) and the eleventh valve port (211); the fifth liquid circuit (305) can be connected to the seventh valve port (207) and the eighth valve port (208); the sixth liquid circuit (306) can be connected to the tenth valve port (210) and the ninth valve port (209); and the seventh liquid circuit (307) can be connected to the twelfth valve port (212) and the thirteenth valve port (213).

9. The multi-way valve structure according to claim 2, characterized in that: The valve body (4) is in the shape of a hexagonal prism, and each prism side surface has at least one valve port (2).

10. A vehicle thermal management system, characterized in that: The multi-way valve structure according to any one of claims 1 to 9 is applied.

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