Valve element, valve assembly, heat management system and vehicle

Abstract

The utility model discloses a valve element, a valve assembly, a heat management system and a vehicle, the valve element comprises a first valve element part and a second valve element part which are connected in the first direction, at least one channel is formed in the first valve element part in a penetrating mode, at least one channel is formed in the second valve element part in a penetrating mode, and the valve element is suitable for being rotationally matched with an external valve body; and the channel of the first valve element part and / or the channel of the second valve element part are / is communicated. Therefore, the first valve core part and the second valve core part are respectively provided with at least one channel, and the first valve core part and the second valve core part can be respectively communicated with an external valve body, so that one valve core can be matched with the valve body to form a one-valve multi-pass effect, the structure is simple, and the cost is low. In addition, the first valve element part and the second valve element part are arranged in the first direction, so that the space in the first direction in the valve element is fully utilized, the space utilization rate is increased, and layout of other structures is facilitated.

Description

Technical Field

[0001] The present application belongs to the field of vehicle technology, and specifically relates to a valve core, a valve assembly, a thermal management system, and a vehicle. Background Art

[0002] The thermal management system for new energy vehicles includes a battery thermal management system and a motor electronic control thermal management system. Temperature significantly impacts the efficiency of battery operation and discharge. At low temperatures, the depth of discharge is shallow, and prolonged operation at low temperatures shortens the battery life. Therefore, to ensure efficient charging and discharging of the battery pack, a thermal management system is required to heat or cool the battery pack. Motor operation generates significant heat, raising the motor temperature and affecting output power, reducing power, and in severe cases, causing the vehicle to stall. Therefore, motor cooling is necessary. During other operations of the new energy vehicle thermal management system, some components may also require heating.

[0003] Conventional thermal management systems for new energy vehicles (NEVs) rely on multiple electronic valve assemblies to control each medium flow channel within the thermal management system. These assemblies are connected in series or parallel, allowing the thermal management system to implement separate flow circuits or adjust them to form a single flow circuit. Traditional thermal management systems involve multiple electronic valve assemblies, resulting in complex and costly structures and complicated flow channels. Utility Model Content

[0004] The present application aims to provide a valve core, a valve assembly, a thermal management system and a vehicle, which can solve the problems of complex structure and high cost of thermal management systems in the prior art.

[0005] In order to solve the above technical problems, this application is implemented as follows:

[0006] In a first aspect, an embodiment of the present application proposes a valve core, comprising: a first valve core portion and a second valve core portion connected along a first direction, at least one channel being opened through the first valve core portion, and at least one channel being opened through the second valve core portion, the valve core being suitable for rotationally cooperating with an external valve body to make the channels of the first valve core portion and / or the second valve core portion conductive.

[0007] Optionally, the first valve core portion includes a first channel, the first channel having a first input port and a first output port, the first input port is suitable for communicating with a first water inlet in the valve body, the first output port is suitable for communicating with two water outlets in the valve body, and the valve core can rotate in the valve body to adjust the flow ratio between the first output port and the two water outlets.

[0008] Optionally, the communicating cross-sectional area between the two water outlets and the first output port is linearly related to the rotation angle of the valve core.

[0009] Optionally, the first valve core portion is further provided with a second channel; the second channel has a second input port and a second output port, the second input port is suitable for communicating with the first water inlet of the valve body, and the second output port is suitable for communicating with one of the two water outlets.

[0010] Optionally, the first input port and the second input port are arranged on the side of the first valve core portion away from the second valve core portion; the first output port and the second output port are arranged on the side wall of the first valve core portion; the first input port and the second input port are arranged at intervals; the first output port and the second output port are arranged at intervals along the circumference of the valve core.

[0011] Optionally, the flow cross-sectional area of ​​the first output port is greater than or equal to the flow cross-sectional area of ​​the second output port.

[0012] Optionally, the second valve core portion is provided with a third channel; one end of the third channel is adapted to be communicated with the second water inlet in the valve body, and the other end is adapted to be communicated with one of the two water outlets.

[0013] Optionally, the third channel includes a first sub-channel and a second sub-channel that are interconnected; the first sub-channel is connected to the second water inlet in the valve body, and the second sub-channel is connected to one of the two water outlets, and the first sub-channel and the second sub-channel are arranged at an angle.

[0014] Optionally, an angle D between an extension direction of the first sub-channel and an extension direction of the second sub-channel satisfies: 90°≤D≤180°.

[0015] Optionally, the flow cross-sectional area of ​​the first sub-channel is greater than or equal to the flow cross-sectional area of ​​the second sub-channel.

[0016] In the second aspect, an embodiment of the present application also provides a valve assembly, comprising a valve core and a valve body as described in the above embodiment; a valve cavity is provided in the valve body, and at least a first water inlet and two water outlets connected to the valve cavity are provided on the cavity wall of the valve cavity; the valve core is installed in the valve cavity, and the valve core can rotate in the valve cavity.

[0017] Optionally, along the first direction, the valve cavity has a first cavity wall and a second cavity wall arranged opposite to each other along the first direction, and a third cavity wall arranged between the first cavity wall and the second cavity wall, and the third cavity wall is arranged around the first cavity wall and the second cavity wall; the first cavity wall is provided with the first water inlet, and the third cavity wall is provided with two water outlets, and the two water outlets are arranged at intervals along the circumference of the third cavity wall.

[0018] Optionally, the two water outlets include a first water outlet and a second water outlet; the size of the first water outlet along the circumference of the valve core is L1, the size of the first water outlet along the circumference of the valve core is D1, and the size of the second water outlet along the circumference of the valve core is D2, satisfying: D1≤L1≤D1+D2 or D2≤L1≤D1+D2.

[0019] Optionally, the second valve core portion is provided with a third channel, and the third cavity wall is also provided with a second water inlet. The second water inlet and the two water outlets are respectively arranged at intervals along the circumference of the third cavity wall, and the second water inlet is suitable for communicating with the third channel.

[0020] Optionally, the valve body includes a top cover and a valve body; the top cover and the valve body enclose the valve cavity, one end of the valve core is rotatably connected to the top cover, and the other end is rotatably connected to the valve body, and a limiting structure is provided between the top cover and the valve core, and the limiting structure is used to limit the rotation angle of the valve core.

[0021] Optionally, at least two first limiting members are provided on the side of the top cover close to the valve core, and at least two first limiting members are arranged at intervals along the circumference of the valve core; a second limiting member is provided on the side of the valve core close to the top cover, and the second limiting member cooperates with the first limiting member.

[0022] Optionally, the valve body is provided with a first flow channel, a second flow channel, and a third flow channel; one end of the first flow channel is suitable for passing a cooling medium; the other end of the first flow channel is suitable for communicating with a second water inlet; one end of the second flow channel is connected to the first flow channel, and the other end is suitable for communicating with a water inlet of a heat exchanger; one end of the third flow channel is suitable for communicating with a water outlet of the heat exchanger, and the other end is connected to the first water inlet;

[0023] And / or, the valve body is further provided with an installation cavity and a fourth flow channel; one end of the fourth flow channel is suitable for communicating with an auxiliary water tank, and the other end is connected with the installation cavity, and the auxiliary water tank is used to provide a cooling medium for the installation cavity; the installation cavity is connected with the first flow channel, and a water pump is suitable for being arranged in the installation cavity to pump the cooling medium into the first flow channel.

[0024] In a third aspect, an embodiment of the present application further provides a thermal management system, comprising the valve assembly described in the above embodiment.

[0025] In a fourth aspect, an embodiment of the present application further provides a vehicle comprising the thermal management system described in the above embodiment.

[0026] In an embodiment of the present application, by providing a first valve core portion and a second valve core portion connected in the first direction of the valve core, at least one channel is opened through the first valve core portion, and at least one channel is opened through the second valve core portion, the valve core rotates and cooperates with the external valve body to make the channels of the first valve core portion and / or the second valve core portion conductive. In this way, by providing at least one channel in each of the first valve core portion and the second valve core portion, the first valve core portion and the second valve core portion can be respectively conductive with the external valve body, so that one valve core can cooperate with the valve body to form a one-valve multi-channel effect, with a simple structure and low cost. In addition, by providing the first valve core portion and the second valve core portion along the first direction, so as to make full use of the space inside the valve core in the first direction, the space utilization rate is improved, which is beneficial to the layout of other structures.

[0027] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0029] Figure 1 is a schematic diagram of a valve core according to an embodiment of the present application;

[0030] Figure 2 is a front view of a valve core according to an embodiment of the present application;

[0031] Figure 3 It is along Figure 2 Cross-sectional view along line AA;

[0032] Figure 4 It is along Figure 2 Cross-sectional view along the midline BB;

[0033] Figure 5 is a schematic diagram of an integrated auxiliary water tank according to an embodiment of the present application;

[0034] Figure 6 is a schematic diagram of a valve assembly according to an embodiment of the present application;

[0035] Figure 7 is a top view of a valve assembly according to an embodiment of the present application;

[0036] Figure 8 It is along Figure 7 Cross-sectional view along the mid-CC line;

[0037] Figure 9 is an exploded view of a valve assembly according to an embodiment of the present application;

[0038] Figure 10 is a schematic diagram of a driving member according to an embodiment of the present application;

[0039] Figure 11 is a schematic diagram of a top cover according to an embodiment of the present application;

[0040] Figure 12 is a schematic diagram of a guide ring assembly according to an embodiment of the present application;

[0041] Figure 13 is a schematic diagram of a sealing assembly according to an embodiment of the present application;

[0042] Figure 14 is a schematic diagram of a top plate according to an embodiment of the present application;

[0043] Figure 15 is another schematic diagram of a top plate according to an embodiment of the present application;

[0044] Figure 16 is a schematic diagram of a base plate according to an embodiment of the present application;

[0045] Figure 17 is another schematic diagram of a base plate according to an embodiment of the present application;

[0046] Figure 18 is a flow path diagram of a thermal management system according to an embodiment of the present application;

[0047] Figure 19 is a schematic diagram of a first flow channel mode according to an embodiment of the present application;

[0048] Figure 20 is a schematic diagram of a second flow channel mode according to an embodiment of the present application;

[0049] Figure 21 is a schematic diagram of a third flow channel mode according to an embodiment of the present application;

[0050] Figure 22 It is a schematic diagram of the fourth flow channel mode according to an embodiment of the present application.

[0051] Reference numerals:

[0052] 1-valve assembly; 2-valve core; 21-second limiter; 22-valve core body; 23-first rotating shaft; 24-second rotating shaft; 3-valve body; 31-top cover; 311-first limiter; 312-connecting column; 32-valve body; 321-top plate; 322-bottom plate; 323-first flow channel; 324-second flow channel; 325-third flow channel; 326-fourth flow channel; 33-installation cavity; 4-valve cavity; 5-opening; 51-first water inlet; 52-first water outlet; 53-second water outlet; 54-second water inlet; 55-third water inlet; 56-third water outlet; 57-fourth water inlet; 6-first valve core; 61-first channel; 611-first Input port; 612-first output port; 62-second channel; 621-second input port; 622-second output port; 7-second valve core; 71-third channel; 711-first sub-channel; 712-second sub-channel; 8-sealing assembly; 81-first sealing member; 82-second sealing member; 9-mounting groove; 10-driving member; 11-guide ring assembly; 111-guide ring; 112-third sealing member; 12-water pump; 13-auxiliary water tank; 14-first sensor; 15-fifth water inlet; 16-cover plate; 17-fourth channel; 18-fifth channel; 100-heat exchanger; 101-motor radiator; 102-powertrain system; 103-second sensor. DETAILED DESCRIPTION

[0053] The embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0054] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly refer to one or more of the features. Throughout the description of this application, unless otherwise specified, "plurality" means two or more. Furthermore, "and / or" in the specification and claims refers to at least one of the connected entities, and the character " / " generally indicates an "or" relationship between the connected entities.

[0055] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0056] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0057] The valve core, valve assembly, thermal management system and vehicle provided in the embodiments of the present application are described in detail below with reference to specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0058] like Figure 1 and Figure 2 As shown, in the first aspect, an embodiment of the present application proposes a valve core 2, comprising: a first valve core portion 6 and a second valve core portion 7 connected along a first direction X, at least one channel being opened through the first valve core portion 6, and at least one channel being opened through the second valve core portion 7, the valve core 2 being suitable for rotating with an external valve body 3 so that the channels of the first valve core portion 6 and / or the second valve core portion 7 are conductive.

[0059] In the embodiment of the present application, a first valve core portion 6 and a second valve core portion 7 are provided in a first direction X of the valve core 2, at least one channel is provided through the first valve core portion 6, and at least one channel is provided through the second valve core portion 7. The valve core 2 rotates and cooperates with the external valve body 3 to allow the channels of the first valve core portion 6 and / or the second valve core portion 7 to be connected. In this way, by providing at least one channel in each of the first valve core portion 6 and the second valve core portion 7, the first valve core portion 6 and the second valve core portion 7 can be connected to the external valve body 3, so that a single valve core 2 can cooperate with the valve body 3 to form a one-valve multi-channel effect, which is simple in structure and low in cost. In addition, by providing the first valve core portion 6 and the second valve core portion 7 along the first direction X, the space inside the valve core 2 in the first direction X can be fully utilized, thereby improving space utilization and facilitating the layout of other structures.

[0060] In some embodiments, as Figure 1 and Figure 2 As shown, the valve core 2 includes a valve core body 22, and the valve core body 22 includes an axial direction of a first valve core portion 6 and a second valve core portion 7 connected to each other along a first direction X, and a second direction Y perpendicular to the axial direction of the rotating shaft.

[0061] Alternatively, as Figure 1 、 Figure 4 、 Figure 19 As shown, the first valve core portion 6 includes a first channel 61, the first channel 61 has a first input port 611 and a first output port 612, the first input port 611 is suitable for communicating with the first water inlet 51 in the valve body 3, and the first output port 612 is suitable for communicating with the two water outlets in the valve body 3, and the valve core 2 can rotate in the valve body 3 to adjust the flow ratio between the first output port 612 and the two water outlets.

[0062] In the embodiment of the present application, by connecting the first input port 611 to the first water inlet 51 in the valve body 3 and the first output port 612 to the two water outlets in the valve body 3, the valve core 2 can rotate within the valve body 3 to adjust the flow ratio between the first output port 612 and the two water outlets. In this way, the cross-sectional area of ​​the connection between the first output port 612 and the two water outlets can be adjusted by rotating the valve core 2, thereby achieving the effect of adjusting the flow ratio between the two water outlets.

[0063] It should be noted that the communication cross-sectional area between the first output port 612 and the water outlet refers to the flow cross-sectional area of ​​the communication portion between the first output port 612 and the water outlet.

[0064] Optionally, the communicating cross-sectional area between the two water outlets and the first output port 612 is linearly related to the rotation angle of the valve core 2 .

[0065] In the embodiment of the present application, the cross-sectional area of ​​communication between the two water outlets and the first output port 612 is linearly related to the rotation angle of the valve core 2. In this way, the cross-sectional area of ​​communication between the two water outlets and the first output port 612 can be linearly adjusted according to the rotation angle of the valve core 2, thereby achieving the effect of accurately adjusting the flow ratio between the two water outlets.

[0066] In some embodiments, the connecting cross-sectional area between one of the water outlets and the first output port 612 is set to S1, the connecting cross-sectional area between the other water outlet and the first output port 612 is set to S2, and the area of ​​the first output port 612 is S, satisfying S≥S1+S2; wherein, the rotation angle of the valve core 2 is set to θ, satisfying S1=k1θ, S2=k2θ; wherein, k1 and k2 are constants, k1 and k2 can be set according to actual needs, and the embodiments of the present application are not limited here.

[0067] Alternatively, as Figure 2 、 Figure 4 and Figure 22 As shown, the first valve core portion 6 is also provided with a second channel 62; the second channel 62 has a second input port 621 and a second output port 622, the second input port 621 is suitable for communicating with the first water inlet 51 of the valve body 3, and the second output port 622 is suitable for communicating with one of the two water outlets.

[0068] In the embodiment of the present application, the second input port 621 is connected to the first water inlet 51 of the valve body 3, and the second output port 622 is connected to one of the two water outlets. In this way, by connecting the second channel 62 to the valve body 3, another circulation loop is formed to meet different heat dissipation requirements.

[0069] Alternatively, as Figure 1 As shown, the first input port 611 and the second input port 621 are arranged on the side of the first valve core part 6 away from the second valve core part 7; the first output port 612 and the second output port 622 are arranged on the side wall of the first valve core part 6; the first input port 611 and the second input port 621 are arranged at intervals; the first output port 612 and the second output port 622 are arranged at intervals along the circumference of the valve core 2.

[0070] In the embodiment of the present application, the first input port 611 and the second input port 621 are arranged on the side of the first valve core portion 6 facing away from the second valve core portion 7; the first output port 612 and the second output port 622 are arranged on the side wall of the first valve core portion 6; the first input port 611 and the second input port 621 are spaced apart; and the first output port 612 and the second output port 622 are spaced apart along the circumference of the valve core 2. In this way, by rationally arranging the first input port 611 and the second input port 621, as well as the first output port 612 and the second output port 622, so as to match the water inlet and water outlet on the valve body 3, communication between the valve core 2 and the valve body 3 is achieved.

[0071] In some embodiments, except for the first channel 61, the second channel 62, and the third channel 71, the remaining first valve core portion 6 and the second valve core portion 7 are hollow structures. This ensures the structural strength of the valve core body 22 while reducing the weight of the valve core 2.

[0072] Optionally, the flow cross-sectional area of ​​the first output port 612 is greater than or equal to the flow cross-sectional area of ​​the second output port 622 .

[0073] In the embodiment of the present application, the flow cross-sectional area of ​​the first outlet 612 is set to be greater than or equal to the flow cross-sectional area of ​​the second outlet 622. In this way, the large-area first outlet 612 is connected to the two outlets at the same time, thereby achieving the function of flow regulation.

[0074] In some embodiments, the size of the second output port 622 can be set to be greater than or equal to the size of the first output port 612 along the circumferential direction of the valve core 2, and the size of the second output port 622 can be set to be equal to the size of the first output port 612 along the first direction X. In this way, the flow cross-sectional area of ​​the first output port 612 can be greater than or equal to the flow cross-sectional area of ​​the second output port 622.

[0075] It should be noted that the size of the second output port 622 refers to the length of the arc formed between two opposing side walls of the second output port 622 along the circumferential direction of the valve core 2, with the rotation axis of the valve core 2 as the center. The size of the first output port 612 is similar and will not be further described in this application.

[0076] Alternatively, as Figure 2 and Figure 3 As shown, the second valve core portion 7 is provided with a third channel 71; one end of the third channel 71 is adapted to communicate with the second water inlet 54 in the valve body 3, and the other end is adapted to communicate with one of the two water outlets.

[0077] In the embodiment of the present application, one end of the third channel 71 is connected to the second water inlet 54 in the valve body 3, and the other end is connected to one of the two water outlets. In this way, by connecting the third channel 71 to the valve body 3, a different circulation loop is formed to meet different heat dissipation requirements.

[0078] Alternatively, as Figure 3 As shown, the third channel 71 includes a first sub-channel 711 and a second sub-channel 712 that are interconnected; the first sub-channel 711 is connected to the second water inlet 54 in the valve body 3, and the second sub-channel 712 is connected to one of the two water outlets, and the first sub-channel 711 and the second sub-channel 712 are arranged at an angle.

[0079] In the embodiment of the present application, the medium flow direction can be changed by setting a certain angle between the first sub-channel 711 and the second sub-channel 712. In this way, the water inlet and outlet in the valve body 3 connected to the third channel 71 can be better matched, thereby meeting different communication requirements.

[0080] In some embodiments, the first sub-channel 711 and the second sub-channel 712 can extend along a straight line or a curve; for example, the two sides of the first sub-channel 711 and the second sub-channel 712 are set in a straight line or an arc shape, and the embodiments of the present application are not limited here.

[0081] Alternatively, as Figure 3 As shown, the included angle D between the extension direction of the first sub-channel 711 and the extension direction of the second sub-channel 712 satisfies: 90°≤D≤180°.

[0082] In the embodiment of the present application, the angle D between the extension direction of the first sub-channel 711 and the extension direction of the second sub-channel 712 is set to satisfy the following: 90°≤D≤180°. This prevents the cooling medium from losing significant velocity after flowing into the first sub-channel 711 and the second sub-channel 712, thereby reducing heat dissipation efficiency.

[0083] Exemplarily, the angle between the extension direction of the first sub-channel 711 and the extension direction of the second sub-channel 712 can be set to any value such as 90°, 100°, 110°, 120°, 130°, 140°, 150°, 160°, 170°, 180°, or a range between any two values.

[0084] Optionally, the flow cross-sectional area of ​​the first sub-channel 711 is greater than or equal to the flow cross-sectional area of ​​the second sub-channel 712 .

[0085] In the embodiment of the present application, the flow cross-sectional area of ​​the first sub-channel 711 is set to be greater than or equal to the flow cross-sectional area of ​​the second sub-channel 712. In this way, when the cooling medium flows from the first sub-channel 711 to the second sub-channel 712, the sudden change in the flow cross-sectional area can increase the flow velocity of the cooling medium in the second sub-channel 712, thereby improving the heat dissipation efficiency.

[0086] Alternatively, as Figures 5 to 17 As shown, an embodiment of the present application also provides a valve assembly 1, including a valve core 2 and a valve body 3 as in the above embodiment; a valve cavity 4 is provided in the valve body 3, and at least a first water inlet 51 and two water outlets connected to the valve cavity 4 are provided on the cavity wall of the valve cavity 4; the valve core 2 is installed in the valve cavity 4, and the valve core 2 can rotate in the valve cavity 4.

[0087] In the embodiment of the present application, a first valve core portion 6 and a second valve core portion 7 are provided in a first direction X of the valve core 2, at least one channel is provided through the first valve core portion 6, and at least one channel is provided through the second valve core portion 7. The valve core 2 rotates and cooperates with the external valve body 3 to allow the channels of the first valve core portion 6 and / or the second valve core portion 7 to be connected. In this way, by providing at least one channel in each of the first valve core portion 6 and the second valve core portion 7, the first valve core portion 6 and the second valve core portion 7 can be connected to the external valve body 3, so that a single valve core 2 can cooperate with the valve body 3 to form a one-valve multi-channel effect, which is simple in structure and low in cost. In addition, by providing the first valve core portion 6 and the second valve core portion 7 along the first direction X, the space inside the valve core 2 in the first direction X can be fully utilized, thereby improving space utilization and facilitating the layout of other structures.

[0088] In addition, the present invention provides a valve cavity 4 in the valve body 3, and the cavity wall of the valve cavity 4 is provided with at least a first water inlet 51 and two water outlets in communication with the valve cavity 4; the valve core 2 is installed in the valve cavity 4 and can rotate in the valve cavity 4. In this way, the valve core 2 can cooperate with the valve body 3 to form a variety of flow modes to adapt to different working conditions.

[0089] Optionally, along the first direction X, the valve chamber 4 has a first chamber wall and a second chamber wall arranged opposite to each other along the first direction X, and a third chamber wall arranged between the first chamber wall and the second chamber wall, and the third chamber wall is arranged around the first chamber wall and the second chamber wall; a first water inlet 51 is provided on the first chamber wall, and two water outlets are provided on the third chamber wall, and the two water outlets are arranged at intervals along the circumference of the third chamber wall.

[0090] In the embodiment of the application, a first water inlet 51 is provided on the first cavity wall, and two water outlets are provided on the third cavity wall, and the two water outlets are spaced apart along the circumference of the third cavity wall. In this way, they are adapted to the channel on the valve core 2, thereby achieving communication between the valve core 2 and the valve body 3.

[0091] Optionally, the two water outlets include a first water outlet 52 and a second water outlet 53; the size of the first water outlet 612 along the circumference of the valve core 2 is L1, the size of the first water outlet 52 along the circumference of the valve core 2 is D1, and the size of the second water outlet 53 along the circumference of the valve core 2 is D2, satisfying: D1≤L1≤D1+D2 or D2≤L1≤D1+D2.

[0092] In the embodiment of the present application, by setting the size of the first output port 612 along the circumference of the valve core 2 to L, the size of the first water outlet 52 along the circumference of the valve core 2 to D1, and the size of the second water outlet 53 along the circumference of the valve core 2 to D2, the following conditions are satisfied: D1 ≤ L1 ≤ D1 + D2 or D2 ≤ L1 ≤ D1 + D2. In this way, the first output port 612 can be connected to the first water outlet 52 and the second water outlet 53 at the same time, thereby achieving the flow regulation function between the first water outlet 52 and the second water outlet 53.

[0093] Optionally, the second valve core portion 7 is provided with a third channel 71 , and a second water inlet 54 is also provided on the third cavity wall. The second water inlet 54 and the two water outlets are respectively arranged at intervals along the circumference of the third cavity wall, and the second water inlet 54 is suitable for communicating with the third channel 71 .

[0094] In the embodiment of the present application, a second water inlet 54 is further provided on the third cavity wall. The second water inlet 54 and the two water outlets are spaced apart along the circumference of the third cavity wall. The second water inlet 54 is adapted to communicate with the third channel 71. In this way, the cooling medium can flow through the third channel 71 in the second valve core portion 7 to form a cooling circuit.

[0095] In some embodiments, the first water inlet 51, the first water outlet 52, the second water inlet 54 and the second water outlet 53 together constitute an opening 5; the valve core 2 rotates in the valve cavity 4 to connect the valve core 2 and different openings 5 ​​in the valve cavity 4 to form different flow modes.

[0096] Specifically, the valve core 2 has four rotational positions in the valve cavity 4, each of which corresponds to a circulation mode. The valve assembly 1 of the present application has a total of four circulation modes, including: when the valve core 2 rotates to the first position, the first water inlet 51 is connected to the first water outlet 52 and the second water outlet 53 through the first channel 61 to form a first circulation mode, i.e., a flow regulation mode; when the valve core rotates to the second position, the first water inlet 51 is connected to the second water outlet 53 through the first channel 61 to form a second circulation mode; when the valve core 2 rotates to the third position, the second water inlet 54 is connected to the second water outlet 53 through the third channel 71 to form a third circulation mode; when the valve core 2 rotates to the fourth position, the first water inlet 51 is connected to the first water outlet 52 through the second channel 62 to form a fourth circulation mode. In this way, multiple circulation modes can be formed by combining a valve core 2 with multiple openings 5.

[0097] In some embodiments, as Figure 18 、 Figure 19 As shown, the valve body 3 is further provided with a fourth channel 17 and a fifth channel 18. One end of the fourth channel 17 communicates with the first water outlet 52, and the other end of the fourth channel 17 communicates with the powertrain. One end of the fifth channel 18 communicates with the second water outlet 53, and the other end of the fifth channel 18 communicates with the motor radiator 101. When the valve core 2 rotates to the first position, the first water inlet 51 communicates with the first water outlet 52 and the second water outlet 53 respectively through the first channel 61, thereby simultaneously delivering the cooling medium to the motor radiator 101 and the powertrain system 102, thereby forming a first circulation mode.

[0098] In some embodiments, as Figure 18 、 Figure 20 As shown, based on the first circulation mode, the valve core 2 rotates 15° counterclockwise to enter the second circulation mode, and the cooling medium passes through the water pump 12, flows through the second sensor 103, and then enters from the first water inlet 51 of the valve assembly 1, flows out from the second water outlet 53, flows to the motor radiator 101 to cool the motor, and then flows to the powertrain system 102, and then returns to the water pump 12 to form a cycle.

[0099] In some embodiments, as Figure 18 、 Figure 21As shown, based on the second circulation mode, the valve core 2 rotates 80° counterclockwise to enter the third circulation mode, and the cooling medium directly enters from the second water inlet 54 of the valve assembly 1, flows out from the second water outlet 53, flows to the motor radiator 101 to cool the motor, and then flows to the powertrain system 102, and then returns to the water pump 12 to form a cycle.

[0100] In some embodiments, as Figure 18 、 Figure 22 As shown, based on the third circulation mode, the valve core 2 rotates 65° counterclockwise to enter the fourth circulation mode, and the cooling medium passes through the water pump 12, flows through the second sensor 103, the heat exchanger 100, and then enters from the first water inlet 51 of the valve assembly 1, flows out from the first water outlet 52, flows to the motor radiator 101 to cool the motor, and then flows to the powertrain system 102, and then returns to the water pump 12 to form a cycle.

[0101] In some embodiments, as Figure 9 and Figure 14 As shown, the valve assembly 1 also includes a cover plate 16, which is arranged between the fourth channel 17 and the first water outlet 52, and between the fifth channel 18 and the second water outlet 53. The cover plate 16 is detachably connected to the valve body 3, which facilitates checking whether the fourth channel 17 and the first water outlet 52 are blocked and whether the fifth channel 18 and the second water outlet 53 are blocked.

[0102] Alternatively, as Figure 8 、 Figure 9 、 Figure 13 As shown, a sealing assembly 8 is further included; the sealing assembly 8 is arranged between the valve body 3 and the valve core 2, and the sealing assembly 8 is at least partially arranged around the opening 5.

[0103] In the embodiment of the present application, the sealing assembly 8 is disposed between the valve body 3 and the valve core 2, and the sealing assembly 8 is at least partially disposed around the opening 5. In this way, the sealing assembly 8 can seal the side wall where the opening 5 is located and the side wall of the valve core 2, thereby ensuring that no leakage occurs between the opening 5 and the channel when the two are connected.

[0104] In some embodiments, as Figure 13 、 Figure 14 As shown, a mounting groove 9 is provided on the third cavity wall, and the sealing assembly 8 is fixed in the mounting groove 9 .

[0105] In some embodiments, as Figure 13As shown, the sealing assembly 8 includes a first sealing member 81 and a second sealing member 82. The first sealing member 81 is made of rubber and the second sealing member 82 is made of polytetrafluoroethylene. The first sealing member 81 is arranged around the opening 5, and the second sealing member 82 is connected to the first sealing member 81. The second sealing member 82 and the valve core 2 are sealed with an end face. Since the second sealing member 82 is made of polytetrafluoroethylene, not only does it have an excellent sealing effect between the second sealing member 82 and the valve core 2, thereby reducing internal leakage, it can also ensure that the contact surface between the second sealing member 82 and the valve core 2 is in a low friction state for a long time, greatly reducing the resistance to rotation of the valve core 2.

[0106] Alternatively, as Figure 9 As shown, the valve body 3 includes a top cover 31 and a valve body 32; the top cover 31 and the valve body 32 enclose a valve cavity 4, one end of the valve core 2 is rotatably connected to the top cover 31, and the other end is rotatably connected to the valve body 32, and a limiting structure is provided between the top cover 31 and the valve core 2, and the limiting structure is used to limit the rotation angle of the valve core 2.

[0107] In the embodiment of the present application, one end of the valve core 2 is rotatably connected to the top cover 31, and the other end is rotatably connected to the valve body 32. A limit structure is provided between the top cover 31 and the valve core 2 to limit the rotation angle of the valve core 2. In this way, by limiting the rotation angle of the valve core 2, the valve core 2 can realize four flow modes within a certain angle, thereby reducing the time required to switch between modes.

[0108] In some embodiments, the limiting structure can be a fit between bosses, a fit between a toothed platform and a toothed groove, or a fit between a slider and a guide rail. For example, the limiting structure can include a toothed platform and a toothed groove, wherein the toothed groove is provided on the side of the first rotating shaft 23 close to the valve core body 22, a avoidance hole is provided in the top cover 31, and a toothed platform is provided in the avoidance hole, and the first rotating shaft 23 passes through the avoidance hole so that the toothed groove and the toothed platform engage with each other. In this way, the rotation angle of the valve core 2 can be limited by setting the angle of the toothed platform. For example, the angle of the gear ring is set to 190°, so that the valve core 2 can only rotate within a range of 190°.

[0109] In some embodiments, as Figures 14 to 17 As shown, the valve body 32 includes a bottom plate 322 and a top plate 321, wherein the top plate 321 is connected to the top cover 31 by plastic laser welding, so that the two have excellent strength and good sealing effect; the bottom plate 322 and the top plate 321 are connected together by plastic vibration welding to form a seal; due to the use of extrusion vibration, the uniformity of the connection structure between the two and the good sealing effect are guaranteed.

[0110] Alternatively, as Figure 9 and Figure 11 As shown, at least two first limit members 311 are provided on the side of the top cover 31 close to the valve core 2, and the at least two first limit members 311 are arranged at intervals along the circumference of the valve core 2; a second limit member 21 is provided on the side of the valve core 2 close to the top cover 31, and the second limit member 21 cooperates with the first limit member 311 to limit.

[0111] In the embodiment of the present application, at least two first position-limiting members 311 are provided on the side of the top cover 31 close to the valve core 2, and the at least two first position-limiting members 311 are spaced apart along the circumference of the valve core 2. A second position-limiting member 21 is provided on the side of the valve core 2 close to the top cover 31, and the second position-limiting member 21 cooperates with the first position-limiting member 311. In this way, the initial position and final position of the valve core 2 can be limited, thereby limiting the rotation of the valve core 2 between the initial position and the final position, preventing the valve core 2 from rotating excessively, and thereby improving the operating performance and service life of the valve core 2.

[0112] In some embodiments, as Figure 11 As shown, a plurality of first limiting members 311 can be provided on one side of the top cover 31 close to the valve core 2, wherein the first and last first limiting members 311 cooperate with the second limiting member 21 to play a limiting role; in the case that the first and last first limiting members 311 are damaged, the middle first limiting member 311 can still cooperate with the second limiting member 21 to play a limiting role.

[0113] In other embodiments, Figure 7 As shown, a plurality of connecting posts 312 are further provided in the top cover 31 , and the plurality of connecting posts 312 are used to fix the driving member 10 .

[0114] Alternatively, as Figures 6 to 8 As shown, it also includes a driving member 10 ; the driving member 10 is arranged in the top cover 31 , the driving member 10 is connected to the valve core 2 , and the driving member 10 is used to drive the valve core 2 to rotate in the valve cavity 4 .

[0115] In the embodiment of the present application, the driving member 10 is connected to the valve core 2. In this way, the driving member 10 drives the valve core 2 to rotate in the valve cavity 4, thereby realizing the switching of the valve core 2 between different positions.

[0116] like Figures 1 to 2 As shown, the valve core 2 includes a valve core body 22 and a first rotating shaft 23 and a second rotating shaft 24 arranged opposite to each other along the first direction X; the first rotating shaft 23 is rotatably connected to the valve body 3, and the second rotating shaft 24 is fixedly connected to the driving member 10. In this way, the driving member 10 drives the second rotating shaft 24 to rotate, thereby driving the valve core body 22 to rotate. Further, as Figure 4 and Figure 5As shown, a third sealing member 112 is sleeved between the second rotating shaft 24 and the driving member 10 to increase the sealing between the driving member 10 and the second rotating shaft 24; and a guide ring 111 is sleeved in the first rotating shaft 23, and the guide ring 111 is arranged on the first cavity wall to reduce the friction resistance between the first rotating shaft 23 and the first cavity wall.

[0117] In some other embodiments, Figure 5 As shown, a first sensor 14 is further provided in the valve body 3 for detecting the temperature of the cooling medium in the valve body 3. The driving member 10 can adjust the position of the valve core 2 in the valve cavity 4 according to the temperature of the first sensor 14.

[0118] Alternatively, as Figure 8 、 Figure 12 As shown, it also includes a guide ring 111 and a third sealing member 112; a mounting hole is provided in the top cover 31, the guide ring 111 is fixed in the mounting hole, and a third sealing member 112 is provided on at least one side of the guide ring 111. One end of the valve core 2 is passed through the guide ring 111 and the third sealing member 112 and is connected to the driving member 10, and the valve core 2 can rotate in the guide ring 111.

[0119] In the embodiment of the present application, a guide ring 111 is fixed in the mounting hole. A third seal 112 is provided on at least one side of the guide ring 111. One end of the valve core 2 is inserted through the guide ring 111 and the third seal 112 and connected to the driver 10, allowing the valve core 2 to rotate within the guide ring 111. Thus, by fixing the guide ring 111 in the mounting hole, the second rotating shaft 24 rotates within the guide ring 111, thereby reducing frictional resistance between the second rotating shaft 24 and the mounting hole. Furthermore, a third seal 112 is provided on at least one side of the guide ring 111 to enhance the sealing effect between the second rotating shaft 24 and the mounting hole, preventing coolant leakage.

[0120] In some embodiments, as Figure 12 As shown, the guide ring 111 and the third sealing member 112 can be integrally formed to form the guide ring assembly 11 , so that the guide ring assembly 11 can be directly installed in the mounting hole, which is simple and convenient to operate.

[0121] Alternatively, as Figures 14 to 17 As shown, the valve body 32 is provided with a first flow channel 323, a second flow channel 324, and a third flow channel 325; one end of the first flow channel 323 is suitable for passing the cooling medium; the other end of the first flow channel 323 is connected to the second water inlet 54; one end of the second flow channel 324 is connected to the first flow channel 323, and the other end is suitable for connecting to the water inlet of the heat exchanger 100; one end of the third flow channel 325 is suitable for connecting to the water outlet of the heat exchanger 100, and the other end is connected to the first water inlet 51.

[0122] In the embodiment of the present application, the cooling medium is introduced into one end of the first flow channel 323; the other end of the first flow channel 323 is connected to the second water inlet 54; one end of the second flow channel 324 is connected to the first flow channel 323 and the other end is suitable for connecting to the fifth water inlet 15 of the heat exchanger 100; one end of the third flow channel 325 is suitable for connecting to the water outlet of the heat exchanger 100 and the other end is connected to the first water inlet 51. In this way, different flow channels are connected to different openings 5, thereby forming different cooling circuits.

[0123] Specifically, if Figure 16 、 Figure 17 As shown, a fifth water inlet 15 is further provided in the valve body 32 , and the fifth water inlet 15 is used to connect the power assembly system 102 and the first flow channel 323 .

[0124] In some embodiments, the communication relationship between the flow channel and the opening 5 specifically includes: when the valve core 2 rotates to the first position, the first flow channel 323, the second flow channel 324, the third flow channel 325, the first water inlet 51, the first channel 61, the first water outlet 52 and the second water outlet 53 are connected in sequence to form a first circulation mode; when the valve core 2 rotates to the second position, the first flow channel 323, the second flow channel 324, the third flow channel 325, the first water inlet 51, the first channel 61 and the second water outlet 53 are connected in sequence to form a second circulation mode; when the valve core 2 rotates to the third position, the first flow channel 323, the second water inlet 54, the third channel 71 and the second water outlet 53 are connected in sequence to form a third circulation mode; when the valve core 2 rotates to the fourth position, the first flow channel 323, the second flow channel 324, the third flow channel 325, the first water inlet 51, the second channel 62 and the first water outlet 52 are connected in sequence to form a fourth circulation mode.

[0125] In other embodiments, Figure 16 、 Figure 17 As shown, the valve body 32 is also provided with a third water inlet 55 and a third water outlet 56. The third water inlet 55 is provided in the third flow channel 325, and the third water inlet 55 is used to connect the water outlet of the heat exchanger 100 and the third flow channel 325; the third water outlet 56 is provided in the second flow channel 324, and the third water outlet 56 is used to connect the fifth water inlet 15 of the heat exchanger 100 and the second flow channel 324.

[0126] In some other embodiments, Figure 18 As shown, a second sensor 103 is provided between the heat exchanger 100 and the water pump 12. The second sensor 103 is used to detect the temperature of the cooling medium entering the heat exchanger 100. The heat exchanger 100 can heat or cool the cooling medium according to the data detected by the second sensor 103, thereby meeting the different requirements of the powertrain system 102 and the motor radiator 101.

[0127] Optionally, an installation cavity 33 and a fourth flow channel 326 are also provided in the valve body 32; one end of the fourth flow channel 326 is suitable for communicating with the auxiliary water tank 13, and the other end is connected with the installation cavity 33, and the auxiliary water tank 13 is used to provide a cooling medium for the installation cavity 33; the installation cavity 33 is connected with the first flow channel 323, and a water pump 12 is suitable for being set in the installation cavity 33 to pump cooling medium into the first flow channel 323.

[0128] In an embodiment of the present application, one end of the fourth flow channel 326 is adapted to be connected to the auxiliary water tank 13 and the other end is connected to the installation cavity 33, so that the user can provide cooling medium to the installation cavity 33 through the auxiliary water tank 13, thereby avoiding poor heating or cooling effects due to lack of cooling medium; in addition, by connecting the installation cavity 33 with the first flow channel 323, a water pump 12 is arranged in the installation cavity 33, so that the cooling medium can be pumped into the first flow channel 323 through the water pump 12 to form a circulation loop; at the same time, the water pump 12 can also adjust the flow rate of the cooling medium to adapt to different needs.

[0129] In some embodiments, as Figure 1 、 Figure 3 As shown, the valve body 3 is further provided with a fourth water inlet 57 , which is used to connect the water outlet of the auxiliary water tank 13 and one end of the fourth flow channel 326 .

[0130] Optionally, an embodiment of the present application further proposes a thermal management system, comprising a valve assembly 1 as in any one of the above embodiments.

[0131] In the embodiment of the present application, a first valve core portion 6 and a second valve core portion 7 are provided in a first direction X of the valve core 2, at least one channel is provided through the first valve core portion 6, and at least one channel is provided through the second valve core portion 7. The valve core 2 rotates and cooperates with the external valve body 3 to allow the channels of the first valve core portion 6 and / or the second valve core portion 7 to be connected. In this way, by providing at least one channel in each of the first valve core portion 6 and the second valve core portion 7, the first valve core portion 6 and the second valve core portion 7 can be connected to the external valve body 3, so that a single valve core 2 can cooperate with the valve body 3 to form a one-valve multi-channel effect, which is simple in structure and low in cost. In addition, by providing the first valve core portion 6 and the second valve core portion 7 along the first direction X, the space inside the valve core 2 in the first direction X can be fully utilized, thereby improving space utilization and facilitating the layout of other structures.

[0132] Optionally, an embodiment of the present application provides a vehicle, comprising a thermal management system as in the above embodiment.

[0133] In the embodiment of the present application, a first valve core portion 6 and a second valve core portion 7 are provided in a first direction X of the valve core 2, at least one channel is provided through the first valve core portion 6, and at least one channel is provided through the second valve core portion 7. The valve core 2 rotates and cooperates with the external valve body 3 to allow the channels of the first valve core portion 6 and / or the second valve core portion 7 to be connected. In this way, by providing at least one channel in each of the first valve core portion 6 and the second valve core portion 7, the first valve core portion 6 and the second valve core portion 7 can be connected to the external valve body 3, so that a single valve core 2 can cooperate with the valve body 3 to form a one-valve multi-channel effect, which is simple in structure and low in cost. In addition, by providing the first valve core portion 6 and the second valve core portion 7 along the first direction X, the space inside the valve core 2 in the first direction X can be fully utilized, thereby improving space utilization and facilitating the layout of other structures.

[0134] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0135] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A valve core (2), characterized in that: include: A first valve core portion (6) and a second valve core portion (7) are connected along a first direction (X), at least one channel is provided through the first valve core portion (6), and at least one channel is provided through the second valve core portion (7), and the valve core (2) is suitable for rotationally cooperating with an external valve body (3) so that the channels of the first valve core portion (6) and / or the second valve core portion (7) are conductive.

2. The valve core (2) according to claim 1, characterized in that The first valve core portion (6) comprises a first channel (61), the first channel (61) having a first input port (611) and a first output port (612), the first input port (611) being adapted to communicate with a first water inlet (51) in the valve body (3), the first output port (612) being adapted to communicate with two water outlets in the valve body (3), and the valve core being rotatable in the valve body (3) to adjust a flow ratio between the first output port (612) and the two water outlets.

3. The valve core (2) according to claim 2, characterized in that The communicating cross-sectional area between the two water outlets and the first output port (612) is linearly related to the rotation angle of the valve core (2).

4. The valve core (2) according to claim 2, characterized in that The first valve core portion is further provided with a second channel (62); The second channel (62) has a second input port (621) and a second output port (622), wherein the second input port (621) is adapted to communicate with the first water inlet (51) of the valve body (3), and the second output port (622) is adapted to communicate with one of the two water outlets.

5. The valve core (2) according to claim 4, characterized in that The first input port (611) and the second input port (621) are provided on a side of the first valve core portion (6) away from the second valve core portion; the first output port (612) and the second output port (622) are provided on a side wall of the first valve core portion; The first input port (611) and the second input port (621) are arranged at intervals; the first output port (612) and the second output port (622) are arranged at intervals along the circumference of the valve core (2).

6. The valve core (2) according to claim 4, characterized in that The flow cross-sectional area of ​​the first output port (612) is greater than or equal to the flow cross-sectional area of ​​the second output port (622).

7. The valve core (2) according to claim 2, characterized in that The second valve core portion is provided with a third channel (71); one end of the third channel (71) is adapted to communicate with the second water inlet (54) in the valve body (3), and the other end is adapted to communicate with one of the two water outlets.

8. The valve core (2) according to claim 7, characterized in that The third channel (71) comprises a first sub-channel (711) and a second sub-channel (712) which are connected to each other; the first sub-channel (711) is connected to the second water inlet (54) in the valve body (3), and the second sub-channel (712) is connected to one of the two water outlets, and the first sub-channel (711) and the second sub-channel (712) are arranged at an angle.

9. The valve core (2) according to claim 8, characterized in that The included angle D between the extension direction of the first sub-channel (711) and the extension direction of the second sub-channel (712) satisfies: 90°≤D≤180°.

10. The valve core (2) according to claim 8, characterized in that The flow cross-sectional area of ​​the first sub-channel (711) is greater than or equal to the flow cross-sectional area of ​​the second sub-channel (712).

11. A valve assembly (1), characterized in that Comprising a valve core (2) and a valve body (3) as described in any one of claims 1 to 10; A valve cavity (4) is provided in the valve body (3), and at least a first water inlet (51) and two water outlets communicating with the valve cavity (4) are provided on the cavity wall of the valve cavity (4); the valve core (2) is installed in the valve cavity (4), and the valve core (2) can rotate in the valve cavity (4).

12. The valve assembly (1) according to claim 11, characterized in that Along the first direction (X), the valve cavity (4) has a first cavity wall and a second cavity wall arranged opposite to each other along the first direction (X), and a third cavity wall arranged between the first cavity wall and the second cavity wall, and the third cavity wall is arranged around the first cavity wall and the second cavity wall; The first cavity wall is provided with the first water inlet (51), and the third cavity wall is provided with two water outlets, which are spaced apart along the circumference of the third cavity wall.

13. The valve assembly (1) according to claim 12, characterized in that The two water outlets include a first water outlet (52) and a second water outlet (53); The size of the first output port (612) of the valve core (2) along the circumference of the valve core (2) is L1, the size of the first water outlet (52) along the circumference of the valve core (2) is D1, and the size of the second water outlet (53) along the circumference of the valve core (2) is D2, satisfying the following conditions: D1≤L1≤D1+D2 or D2≤L1≤D1+D2.

14. The valve assembly (1) according to claim 12, characterized in that The second valve core portion (7) is provided with a third channel (71), and the third cavity wall is further provided with a second water inlet (54). The second water inlet (54) and the two water outlets are respectively arranged at intervals along the circumference of the third cavity wall, and the second water inlet (54) is suitable for communicating with the third channel (71).

15. The valve assembly (1) according to claim 11, characterized in that The valve body (3) comprises a top cover (31) and a valve body (32); The top cover (31) and the valve body (32) enclose the valve cavity (4); one end of the valve core (2) is rotatably connected to the top cover (31), and the other end is rotatably connected to the valve body (32); a limiting structure is provided between the top cover (31) and the valve core (2), and the limiting structure is used to limit the rotation angle of the valve core (2).

16. The valve assembly (1) according to claim 15, characterized in that At least two first limiting members (311) are provided on a side of the top cover (31) close to the valve core (2), and the at least two first limiting members (311) are arranged at intervals along the circumference of the valve core (2); a second limiting member (21) is provided on a side of the valve core (2) close to the top cover (31), and the second limiting member (21) is matched with the first limiting member (311) for limiting.

17. The valve assembly (1) according to claim 15, characterized in that The valve body (32) is provided with a first flow channel (323), a second flow channel (324), and a third flow channel (325); One end of the first flow channel (323) is suitable for passing a cooling medium; the other end of the first flow channel (323) is suitable for communicating with a second water inlet (54); one end of the second flow channel (324) is in communication with the first flow channel (323), and the other end is suitable for communicating with a water inlet of a heat exchanger (100); one end of the third flow channel (325) is suitable for communicating with a water outlet of the heat exchanger (100), and the other end is in communication with the first water inlet (51); And / or, the valve body (32) is further provided with an installation cavity (33) and a fourth flow channel (326); one end of the fourth flow channel (326) is suitable for communicating with the auxiliary water tank (13), and the other end is connected with the installation cavity (33), and the auxiliary water tank (13) is used to provide a cooling medium for the installation cavity (33); the installation cavity (33) is connected with the first flow channel (323), and a water pump (12) is suitable for being provided in the installation cavity (33) to pump the cooling medium into the first flow channel (323).

18. A thermal management system, characterized in that: Comprising a valve assembly (1) according to any one of claims 11-17.

19. A vehicle, characterized in that: Comprising the thermal management system of claim 18.

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