CN220956947U - Multi-way valve, thermal management system and vehicle - Google Patents

Abstract

The application provides a multi-way valve, a thermal management system and a vehicle, wherein the multi-way valve comprises a valve body and a valve core, the valve body comprises a valve seat, the valve seat comprises a bottom wall and a side wall connected with the bottom wall, the bottom wall and the side wall are enclosed to form a valve cavity, and the valve core is rotatably arranged in the valve cavity; the valve core comprises a bottom end matched with the bottom wall, a plurality of flow passage openings are formed in the bottom wall at intervals, at least one valve core flow passage is formed in the valve core, an opening of the valve core flow passage is positioned at the bottom end, and the valve core flow passage is used for communicating at least two flow passage openings in the plurality of flow passage openings through the opening when the valve core rotates to different positions; the side wall is also provided with a liquid inlet and a liquid outlet which are communicated with the valve cavity at intervals, the side face of the valve core is provided with a first blocking part, and the first blocking part is used for blocking at least one of the liquid inlet and the liquid outlet. The multi-way valve provided by the application has the functions of switching on and off of a cooling liquid loop and mode switching, and can reduce the number of valves in a thermal management system, thereby improving the integration level of the thermal management system.

Description

Multi-way valve, thermal management system and vehicle

Technical Field

The application belongs to the field of valves, and particularly relates to a multi-way valve, a thermal management system and a vehicle.

Background

With the development of battery technology, electric vehicles are widely used. In addition to the thermal management requirements of air conditioning and driving motors, electric vehicles also need strict thermal management control on battery packs to ensure normal operation of the vehicle.

Most of the existing heat management systems of new energy automobiles adopt a heat pump technology, and the heat pump technology is easy to cause a cooling liquid loop to become more complex, and the integration level is lower.

Disclosure of utility model

The embodiment of the application aims to provide a multi-way valve, a thermal management system and a vehicle, which are used for solving the problems of complex cooling liquid loop and low integration level in the related technology.

In order to achieve the above purpose, the technical scheme adopted by the embodiment of the application is as follows: the utility model provides a multiway valve, including valve body and case, the valve body includes diapire and the lateral wall of connecting to the diapire, diapire and the lateral wall enclose and form the valve pocket, the case can rotate around self axis in the valve pocket;

The valve core comprises a bottom end matched with the bottom wall, a plurality of flow passage openings are formed in the bottom wall, at least one valve core flow passage is formed in the bottom end of the valve core and used for communicating more than two flow passage openings, and when the valve core rotates along with the valve core and is located at different positions, the valve core flow passage can communicate with different flow passage openings;

The side wall is provided with a liquid inlet and a liquid outlet which are communicated with the valve cavity, the valve core is provided with a first blocking part, and the first blocking part is used for blocking at least one of the liquid inlet and the liquid outlet or releasing blocking when rotating around the shaft along with the valve core and being positioned at different positions.

The utility model has the beneficial effects that: according to the multi-way valve provided by the utility model, the valve core is rotated, the first blocking part can be driven to rotate so as to control the communication state of the liquid inlet or the liquid outlet and the valve cavity, and when the liquid inlet or the liquid outlet is blocked by the first blocking part, cooling liquid cannot flow into the valve cavity, and the cooling liquid loop is closed; when the first blocking part does not block the liquid inlet and the liquid outlet, the cooling liquid can flow into the valve cavity through the liquid inlet and flow out of the liquid outlet, so that the function of a cooling liquid loop switch between the liquid inlet and the liquid outlet is realized. Meanwhile, when the valve core rotates, the valve core flow channel can be communicated with different flow channel ports, so that switching of different cooling liquid loop modes is realized. The multi-way valve provided by the embodiment of the utility model has the functions of switching on and off of a cooling liquid loop and mode switching, and can reduce the number of valves in the thermal management system, thereby improving the integration level of the thermal management system.

In some embodiments of the application, the spool flow passage is not in communication with the inlet and outlet ports.

By adopting the technical scheme, the method is used for realizing the state switching of opening or closing of the cooling liquid loop.

In some embodiments of the present application, each of the flow ports is circumferentially disposed on the bottom wall at intervals centering on a rotation center line of the spool.

Through adopting above-mentioned technical scheme, when the case runner rotates along with the case, can communicate with each runner mouth that sets up along circumference respectively, realize the switching of mode.

In some embodiments of the present application, the runner ports include a first sub-runner port and a plurality of second sub-runner ports, and distances between adjacent two of the second sub-runner ports are equal.

By adopting the technical scheme, when the modes are switched, the valve core rotation angles between the adjacent modes are the same.

In some embodiments of the present application, the geometric center of the first sub-flow passage opening is arranged in line with the rotation center line of the valve core, each of the second sub-flow passage openings is circumferentially arranged on the bottom wall at intervals with the rotation center line of the valve core as a center, and at least one of the valve core flow passages is used for communicating the first sub-flow passage opening with at least one of the second sub-flow passage openings; and/or at least one of the valve core flow passages is used for communicating any more than two second sub-flow passage openings.

Through adopting above-mentioned technical scheme, case runner can be with first sub-runner mouth and second sub-runner mouth intercommunication, also can be with the second sub-runner mouth intercommunication more than arbitrary two, can realize multiple communication mode.

In some embodiments of the present application, the number of the spool flow channels is two, the spool flow channel has a first flow channel end and a second flow channel end opposite to the first flow channel end, wherein the first flow channel end of one spool flow channel is correspondingly communicated with the first sub-flow channel port, and the second flow channel end of the spool flow channel is correspondingly communicated with the second sub-flow channel port; the first runner end of the other valve core runner is used for being correspondingly communicated with one of the second sub-runner ports, and the second runner end of the other valve core runner is used for being correspondingly communicated with the other second sub-runner ports.

Through adopting above-mentioned technical scheme, the first runner end of case runner can remain all the time with first sub-runner mouth intercommunication, and when the case rotated, the second runner end of first case runner was linked together with different second sub-runner mouth respectively to make first sub-runner mouth can be with different second sub-runner mouth intercommunication. And the other valve core runner can communicate the adjacent second sub-runner ports, and when the valve core rotates, the communication of any adjacent second sub-runner ports can be realized. The multi-way valve provided by the application can realize the switching of various communication modes.

In some embodiments of the present application, the at least one spool flow channel further includes a second spool flow channel, the number of the second sub-flow channels is at least three, and the second spool flow channel is used to communicate with two of the second sub-flow channels when the spool rotates.

Through adopting above-mentioned technical scheme, when the case rotates, second case runner can be with two second sub-runner mouths intercommunication wherein, makes the coolant liquid flow between two second sub-runner mouths.

In some embodiments of the application, the valve cartridge includes a base plate for mating with the base wall and a cartridge housing disposed on a side of the base plate facing away from the base wall, the base plate having a bottom end, at least a portion of the bottom end being recessed toward the cartridge housing to form a cartridge flow path.

Through adopting above-mentioned technical scheme, bottom plate and diapire cooperation make runner mouth and the inside separation of valve pocket to separate the coolant liquid pipeline that runner mouth and inlet and liquid outlet are located, the bottom of bottom plate is inwards sunken to case body department, and the opening part of case runner can communicate with different runner mouths, forms different coolant liquid passageways.

In some embodiments of the application, a side of the bottom plate facing the bottom wall is further provided with a first sealing ring surrounding the opening of the valve core flow passage.

Through adopting above-mentioned technical scheme, through first sealing washer, can seal the clearance between the opening part of case runner and the diapire, reduce the risk that the coolant liquid takes place to reveal in the case runner.

In some embodiments of the application, the first plug is disposed on an outer wall of the spool housing.

By adopting the technical scheme, the first blocking part can rotate along with the valve core shell and is matched with the side wall of the valve seat, when the first blocking part rotates to be coincident with the liquid inlet or the liquid outlet, the liquid inlet or the liquid outlet is blocked by the first blocking part, and at the moment, the cooling liquid does not circulate; when the first blocking part rotates to be not overlapped with the liquid inlet and the liquid outlet, the liquid inlet is communicated with the liquid outlet, at the moment, cooling liquid can flow into the valve cavity from the liquid inlet and flow out from the liquid outlet, and the cooling liquid pipeline is opened.

In some embodiments of the present application, a second blocking portion is further provided on the bottom end, and the second blocking portion is configured to block the flow passage port that is not in communication with the spool flow passage from among the plurality of flow passage ports when the spool rotates to a different position.

By adopting the technical scheme, in the valve core rotating process, the second blocking part can block the flow passage opening which is not communicated with the valve core flow passage, so that the leakage probability of the cooling liquid is reduced.

In some embodiments of the application, the second seal includes a second seal ring disposed on the base plate, the second seal ring being located on a side of the base plate facing the bottom wall and configured to surround a flow port that is not in communication with the spool flow passage.

Through adopting above-mentioned technical scheme, when the case rotates, make the second sealing washer actuate when encircling the runner mouth, the second sealing washer can carry out further sealedly to the runner mouth, improves sealing performance, reduces the probability that the coolant liquid revealed.

In some embodiments of the present application, the number M of the flow ports is not less than 2 times the number N of the spool flow channels, the number p= (M-2N) of the second blocking portions, wherein M is an integer not less than 3, N is an integer not less than 1, and P is an integer not less than 0.

By adopting the technical scheme, the number of the second plugging parts can be matched with the number of the flow passage openings and the valve core flow passages, so that the flow passage openings which are not communicated with the valve core flow passages can be sealed.

In some embodiments of the present application, the valve body further includes a sealing gasket located on the bottom wall, the sealing gasket is located between the bottom wall and the bottom end, the sealing gasket is used for being directly matched with the bottom end, and a plurality of through-flow ports corresponding to the plurality of flow passage ports one by one are formed in the sealing gasket.

Through adopting above-mentioned technical scheme, through sealing backing plate, can improve the sealing performance between the bottom wall and the bottom of case, reduce the coolant liquid and reveal probability, through setting up the overflow mouth with a plurality of runner mouths one-to-one, do not influence the intercommunication of runner mouth and case runner.

In some embodiments of the application, the valve cartridge includes a top end opposite the bottom end, the top end having a spindle portion disposed thereon.

Through adopting above-mentioned technical scheme, the pivot portion can be connected the device of drive case pivoted, is convenient for drive case pivoted.

In some embodiments of the application, the multi-way valve further comprises a driver drivingly connected to the shaft portion.

By adopting the technical scheme, the driver can drive the rotating shaft part to rotate, so as to drive the valve core to rotate, and realize the switching of multiple modes and the switching of the cooling liquid loop.

In some embodiments of the present application, the valve body includes a valve seat and an end cover, the valve seat is composed of the bottom wall and the side wall, the end cover is mounted at an end of the side wall far away from the bottom wall, a through hole is formed in the end cover, at least part of the rotating shaft portion extends out of the valve cavity through the through hole, and the driver and the valve core are respectively located at two sides of the end cover.

By adopting the technical scheme, the end cover is connected with the side wall of the valve seat to form the valve cavity, and the rotating shaft part can extend out of the valve cavity through the through hole and is connected with the driver so as to isolate the interior of the valve cavity from the outside.

To achieve the above object, an embodiment of the present application further provides a thermal management system, which includes the multi-way valve described above.

By adopting the technical scheme, the valve number in the thermal management system can be reduced, so that the integration level of the thermal management system is improved, the number of parts is reduced, and the space is saved.

To achieve the above object, an embodiment of the present application further provides a vehicle including the above-mentioned multiway valve and/or the above-mentioned thermal management system.

The vehicle employs the multiway valve and/or the thermal management system according to any of the above embodiments, so that the vehicle has at least the advantages of the above embodiments, which are not described in detail herein.

The foregoing description is only an overview of the present application, and is intended to be implemented in accordance with the teachings of the present application in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present application more readily apparent.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments or exemplary technical descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained according to these drawings without inventive effort for a person of ordinary skill in the art.

FIG. 1 is a schematic diagram of the overall structure of a multi-way valve according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a valve body in a multi-way valve according to an embodiment of the present application;

FIG. 3 is a schematic diagram of an explosion structure of a multi-way valve according to an embodiment of the present application;

FIG. 4 is a schematic plan view of a flow passage opening in a multi-way valve according to an embodiment of the present application;

Fig. 5 is a schematic perspective view of a valve body in a multi-way valve according to an embodiment of the present application;

FIG. 6 is a schematic structural diagram of a valve core in a multi-way valve according to an embodiment of the present application;

FIG. 7 is a schematic view of another angle of a valve element in a multi-way valve according to an embodiment of the present application;

fig. 8 is a schematic perspective view of a multi-way valve according to an embodiment of the present application;

FIG. 9 is a schematic cross-sectional view of a multi-way valve according to an embodiment of the present application;

Fig. 10 is a schematic perspective view of a multi-way valve mode two according to an embodiment of the present application;

FIG. 11 is a schematic cross-sectional view of a second multi-way valve according to an embodiment of the present application;

fig. 12 is a schematic perspective view of a multi-way valve mode three according to an embodiment of the present application;

FIG. 13 is a schematic cross-sectional view of a third embodiment of the multi-way valve according to the present application;

fig. 14 is a schematic perspective view of a multi-way valve according to an embodiment of the present application;

FIG. 15 is a schematic cross-sectional view of a fourth embodiment of the multi-way valve according to the present application;

FIG. 16 is a schematic diagram of a thermal management system according to an embodiment of the present application;

fig. 17 is a schematic structural diagram of an electric device according to an embodiment of the present application;

Wherein, each reference numeral in the figure mainly marks:

A valve body 10; a valve seat 11; a bottom wall 111; a sidewall 112; an end cap 12; a flow passage opening 13; a first sub-flow port 131; a second sub-flow port 132; a liquid inlet 14; a liquid outlet 15; a seal backing plate 16; a through-flow port 161;

A valve core 20; a spool housing 21; a bottom plate 22; a spool flow passage 23; a first spool flow passage 231; a second spool flow passage 232; a first seal ring 24; a second seal ring 25; a first blocking portion 26; a third seal ring 27;

a driver 30;

A rotation shaft portion 40;

A thermal management system 50; a first water pump 51; a second water pump 52; a multi-way valve 53;

New energy automobile 60.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description of the application and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion.

In the description of embodiments of the present application, the technical terms "first," "second," and the like are used merely to distinguish between different objects and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, a particular order or a primary or secondary relationship. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments in any suitable manner.

In the description of the embodiments of the present application, the term "and/or" is merely an association relationship describing an association object, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

In the description of the embodiments of the present application, the term "plurality" means two or more (including two), and similarly, "plural sets" means two or more (including two), and "plural sheets" means two or more (including two). The meaning of "a number" is one or more than one unless specifically defined otherwise.

In the description of the embodiments of the present application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. refer to the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are merely for convenience of describing the embodiments of the present application and for simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present application.

In the description of the embodiments of the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; or may be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present application will be understood by those of ordinary skill in the art according to specific circumstances.

In the description of embodiments of the application, when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element unless explicitly stated and limited otherwise. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

The new energy automobile thermal management system is a thermal management system configured by a battery, a motor and an electric control, and the working temperatures of the battery, the motor and the electric control are controlled through the thermal management system. When the working temperatures of the battery, the motor and the electric control are higher, the heat management system dissipates heat of the battery, the motor and the electric control; when the working temperatures of the battery, the motor and the electric control are low, the heat management system provides heat for the motor and the battery so as to ensure that the motor and the battery work at proper temperatures.

In the related art, different waterway valves are arranged in the cooling liquid loop for adjustment. The valves are used for changing the communication relation of the parts so as to realize the mode switching function of the thermal management system; some valves are used for coolant circuit switch shut-off, i.e. opening or closing a certain coolant circuit. The valves have corresponding functions, and have large internal structure difference, so that a cooling liquid loop in the new energy automobile thermal management system is very complex, the integration level is low, and the production cost is high.

Based on the above, in order to improve the integration level of a new energy vehicle thermal management system, the application provides a multi-way valve, wherein the valve core is provided with a valve core runner arranged at the bottom of the valve core, a plurality of runner ports arranged at the bottom wall of the valve body are matched with each other, a plugging part arranged at the side edge of the valve core is matched with a liquid inlet and a liquid outlet arranged on the side wall of the valve body, and when the valve core rotates in the valve body, the on-off of a cooling liquid pipeline and the switching of a communication mode of the cooling liquid pipeline are simultaneously realized.

Referring to fig. 2-7, fig. 2 is a schematic structural diagram of a valve body in the multi-way valve according to an embodiment of the present application, fig. 3 is a schematic explosion structural diagram of the multi-way valve according to an embodiment of the present application, fig. 4 is a schematic plan layout diagram of a flow passage opening 13 in the multi-way valve according to an embodiment of the present application, fig. 5 is a schematic three-dimensional structural diagram of a valve body 10 in the multi-way valve according to an embodiment of the present application, fig. 6 is a schematic structural diagram of a valve core 20 in the multi-way valve according to an embodiment of the present application, and fig. 7 is a schematic structural diagram of the valve core 20 in the multi-way valve according to an embodiment of the present application.

As shown in fig. 2 and 3, the multi-way valve provided by the embodiment of the application comprises a valve body 10 and a valve core 20, wherein the valve body 10 comprises a bottom wall 111 and a side wall 112 connected to the bottom wall 111, the bottom wall 111 and the side wall 112 enclose to form a valve cavity, and the valve core 20 can rotate around an axis thereof in the valve cavity;

As shown in fig. 4 and 7, the valve core 20 includes a bottom end matched with the bottom wall 111, a plurality of flow passage openings 13 are arranged on the bottom wall 111, at least one valve core flow passage 23 is arranged on the bottom end of the valve core 20, the valve core flow passage 23 is used for communicating more than two flow passage openings 13, and when rotating along with the valve core 20 and being positioned at different positions, the valve core flow passage 23 can communicate different flow passage openings 13;

As shown in fig. 5, the side wall 112 is provided with a liquid inlet 14 and a liquid outlet 15 which are communicated with the valve cavity. As shown in fig. 6, the valve core 20 is provided with a first blocking portion 26, and the first blocking portion 26 is configured to be capable of blocking or unblocking at least one of the liquid inlet 14 and the liquid outlet 15 when rotating around the axis with the valve core 20 and being located at different positions.

The valve body 10 is a body member of a multi-way valve for providing a space for receiving the valve cartridge 20 and a flow passage of fluid. The valve body 20 is a valve member installed inside the valve body 10, and performs basic functions such as directional control, pressure control, and flow control by movement or rotation of the valve body 20. The bottom wall 111 is a structural surface at one end of the valve body 10, and the side wall 112 is a structural surface which is provided along the circumferential direction of the bottom wall 111 and encloses a valve cavity with the bottom wall 111. The fluid passage opening 13 is a through hole provided in the bottom wall 111 for communication with an external line. The spool flow passage 23 is a fluid passage provided in the spool 20 for communicating two or more flow passage ports 13.

According to the multi-way valve provided by the embodiment of the application, the valve core 20 is rotated to drive the first plugging part 26 to rotate so as to control the communication state of the liquid inlet 14 and the liquid outlet 15.

In some embodiments of the present application, the spool flow passage 23 is not in communication with the inlet port 14 and the outlet port 15.

In this embodiment, the communication channel between the liquid inlet 14 and the liquid outlet 15 is not in communication with the valve core channel 23. When the first blocking part 26 blocks the liquid inlet 14 or the liquid outlet 15, the cooling liquid cannot flow into the valve cavity, and the cooling liquid loop is closed; when the first blocking portion does not block the liquid inlet 14 and the liquid outlet 15, a cooling liquid circuit between the liquid inlet 14 and the liquid outlet 15 is opened, and cooling liquid can flow into the valve cavity through the liquid inlet 14 and flow out of the liquid outlet 15.

Meanwhile, when the valve core 20 rotates, the valve core flow channel 23 can be communicated with different flow channel ports 13, so that the switching of different modes of the thermal management system is realized. The multi-way valve provided by the embodiment of the application has the functions of switching on and off of a cooling liquid loop and mode switching, and can reduce the number of valves in a thermal management system, thereby improving the integration level of the thermal management system and reducing the production cost.

In some embodiments of the present application, the first blocking portion 26 is used to block the liquid inlet 14, and in other embodiments of the present application, the first blocking portion 26 may also be used to block the liquid outlet 15 or to block both the liquid inlet 14 and the liquid outlet 15.

In some embodiments of the present application, one spool flow passage 23 is used to connect two flow ports 13.

In some embodiments of the present application, one spool flow channel 23 may also be used to connect three flow channels 13 simultaneously. Of the three flow passage openings 13, one flow passage opening 13 may be an inlet, the other two flow passage openings 13 may be outlets, or the two flow passage openings 13 may be inlets, and the other flow passage opening 13 may be an outlet.

In other embodiments of the present application, the number of the flow ports 13 to which one spool flow channel 23 is simultaneously connected may be four, five, etc., and the present application is not limited thereto.

In some embodiments of the present application, the bottom end of the valve core 20 and the bottom wall 111 may be directly engaged, for example, the bottom end of the valve core 20 abuts against the bottom wall 111, and the bottom end of the valve core 20 and the bottom wall 111 are relatively rotatable. Alternatively, the bottom end of the valve core 20 and the bottom wall 111 may be indirectly engaged, for example, a gasket is disposed between the bottom end of the valve core 20 and the bottom wall 111, and the bottom end of the valve core 20 abuts against the gasket and is rotatable relative to the gasket. In some embodiments of the present application, the flow ports 13 are provided on the bottom wall 111 at intervals in the circumferential direction about the rotation center line of the spool 20.

Since the multi-way valve is configured to switch modes by rotating the valve core 20, when the valve core 20 rotates, the valve core flow channel 23 performs a circular motion, so that the flow channel ports 13 are circumferentially arranged, and the valve core flow channel 23 can be respectively communicated with different flow channel ports 13, thereby realizing mode switching.

According to the multi-way valve provided by the embodiment of the application, by arranging one or more valve core flow channels 23, when the valve core 20 rotates, two or more of the flow channel ports 13 arranged along the circumferential direction can be communicated by the valve core flow channels 23, and when the valve core 20 rotates to different positions, different flow channel ports 13 are communicated, so that the switching of communication modes is realized. Referring to fig. 7, the spool flow passage 23 may be disposed in a radial direction, and both ends thereof communicate with two flow passage ports 13 disposed in a circumferential direction, respectively. When the valve core 20 rotates, the valve core runner 23 performs circular motion and is communicated with the other two runner ports 13, so that the communication mode is switched. Alternatively, referring to fig. 7, the spool flow channel 23 may not be disposed in a radial direction, and when the spool flow channel 23 performs a circular motion, the spool flow channel 23 may also communicate with the other two flow channel ports 13, so as to implement mode switching.

The number of spool flow channels 23 is one, alternatively, the number of spool flow channels 23 may be two, three, four, etc., and the present application is not limited thereto.

In some embodiments of the present application, the runner port 13 includes a first sub-runner port 131 and a plurality of second sub-runner ports 132, and distances between adjacent two second sub-runner ports 132 are equal.

According to the multi-way valve provided by the embodiment of the application, the second sub-fluid passage ports 132 are arranged at equal intervals, and when the mode is switched, the valve core 20 is rotated by the same angle, so that the mode switching can be completed once. The rotation angle of the valve core 20 during the mode switching is determined according to the number of the second sub-fluid ports 132, for example, the number of the second sub-fluid ports 132 is 3, and accordingly, the mode switching is completed every 120 ° of rotation of the valve core 20. When the number of the second sub-fluidic ports 132 is 6, the corresponding valve core 20 completes the mode switching every 60 ° of rotation. Of course, according to the connection relation of the pipeline ports in different modes, marks at positions corresponding to different modes can be arranged on the valve body, and the distances between adjacent marks can be the same or different.

Referring to fig. 4, in some embodiments of the present application, the geometric center of the first sub-runner port 131 is disposed co-linearly with the rotation center line of the valve core 20, each of the second sub-runner ports 132 is disposed on the bottom wall 111 at intervals in the circumferential direction around the rotation center line of the valve core 20, and at least one of the valve core runners 23 is used for communicating the first sub-runner port 131 with at least one of the second sub-runner ports 132.

The multi-way valve provided by the application has the advantages that the first sub-runner port 131 is arranged on the rotation center line of the valve core 20, the second sub-runner port 132 is circumferentially arranged on the bottom wall 111 at intervals by taking the rotation center line of the valve core 20 as the center, and the valve core runner 23 can be used for communicating the first sub-runner port 131 with one or more second sub-runner ports 132. Referring to fig. 4 and 7, one end of one valve core runner 23 is overlapped with the first sub runner port 131, the other end corresponds to the second sub runner port 132 circumferentially arranged, when the valve core 20 rotates, one end of the valve core runner 23 is always communicated with the first sub runner port 131, and the other end of the valve core runner 23 can be communicated with one or more different second sub runner ports 13 to realize multiple communication modes.

In some embodiments of the present application, each spool flow channel 23 may also be used to communicate with any two or more of the second sub-flow ports 132.

In some embodiments of the application, wherein two or more of the second sub-flow ports 132 are in communication with the exterior of the valve body 10, alternatively, the plurality of second sub-flow ports 132 may not be in communication with the exterior of the valve body 10.

Referring to fig. 4 and 7, in some embodiments of the present application, the spool flow channel 23 is two in number, namely a first spool flow channel 231 and a second spool flow channel 232. The spool flow channel 23 has a first flow channel end and a second flow channel end opposite to the first flow channel end, wherein the first flow channel end of the first spool flow channel 231 is correspondingly communicated with the first sub-flow channel port 131, and the second flow channel end of the first spool flow channel 231 is correspondingly communicated with the second sub-flow channel port 132; the first flow path end of the second spool flow path 232 is adapted to communicate with one of the second sub-flow path ports 132, and the second flow path end of the second spool flow path 232 is adapted to communicate with the other second sub-flow path ports 132, such as adjacent or non-adjacent second sub-flow path ports 132.

The first channel end and the second channel end are opposite ends of the valve core channel 23 and are used for being matched with the channel opening 13 so as to communicate the valve core channel 23 with the channel opening 13 to realize circulation of cooling liquid. It will be appreciated that the spool flow passage 23 may be a straight flow passage or a curved flow passage.

In the multi-way valve provided by the embodiment of the application, when the valve core rotates, the first flow channel end of the first valve core flow channel 231 can be always communicated with the first sub-flow channel port 131, and the second flow channel end of the first valve core flow channel 231 is respectively communicated with different second sub-flow channel ports 132. And, another valve core runner 23 can communicate two adjacent second sub-runner mouths 132, and when the valve core rotates, the communication of any adjacent second sub-runner mouths 132 can be realized. Therefore, when the rotary valve core 20 is positioned at different positions, the valve core flow channel 23 can be respectively communicated with different flow channel ports 13 at different positions of the valve core 20, so that switching of different communication modes is realized.

Referring to fig. 7, in some embodiments of the present application, the second spool flow channel 232 may also be used to communicate with two non-adjacent second sub-flow channels 132, for example, one second sub-flow channel 132 may be spaced apart, alternatively, two, three, etc. may be spaced apart.

In some embodiments of the present application, the number of the spool flow channels 23 may be three, four, etc., which is not limited by the present application. One of which includes a first spool flow passage 231 and the remainder being a second spool flow passage 232.

In some embodiments of the present application, the number of the second spool flow channels 232 may be one or two or more, and the present application is not limited thereto.

In some embodiments of the present application, the second spool flow channel 232 is linear, alternatively, the second spool flow channel 232 may be curved, which is not limited by the present application.

In some embodiments of the present application, the valve cartridge 20 includes a bottom plate 22 for mating with the bottom wall 111 and a cartridge housing 21 disposed on a side of the bottom plate 22 facing away from the bottom wall 111, the bottom plate 22 having a bottom end at least a portion of which is recessed toward the cartridge housing 21 to form a cartridge flow passage 23.

The bottom plate 22 is a flat plate-like member provided at one end of the valve spool 20 for cooperation with the bottom wall 111 to isolate the flow passage 13 from the valve chamber. The spool housing 21 is a housing member provided on a side of the bottom plate 22 facing away from the bottom wall 111 for forming a fluid passage.

The multi-way valve provided by the application is recessed inwards to the valve core shell 21 through the bottom plate 22 to form the valve core flow channel 23, one side of the valve core flow channel 23 facing the bottom wall 111 is provided with an opening, the valve core flow channel can be communicated with a part of flow channel ports 13, and the part of flow channel ports 13 which are not communicated with the valve core flow channel 23 can be sealed by the bottom plate 22, so that the liquid inlet 14 and the liquid outlet 15 are not communicated with the flow channel ports 13, and an independent and mutually isolated cooling liquid channel is formed.

In some embodiments of the present application, the bottom plate 22 is directly engaged with the bottom wall 111, i.e., the bottom plate 22 directly abuts against the bottom wall 111 to block the flow passage 13 which is not in communication with the spool flow passage 23. In other embodiments of the application, the bottom plate 22 may also cooperate indirectly with the bottom wall 111, i.e. by other sealing structures in contact with the bottom wall 111, to seal the flow opening 13.

In some embodiments of the application, the bottom plate 22 is integrally formed with the spool housing 21. Alternatively, the bottom plate 22 and the spool housing 21 may be welded.

Referring to fig. 7, in some embodiments of the present application, a side of the bottom plate 22 facing the bottom wall 111 is further provided with a first sealing ring 24 surrounding an opening of the spool flow channel 23.

The multi-way valve provided by the application seals the gap between the opening of the valve core flow channel 23 and the bottom wall 111 through the first sealing ring 24, so that leakage of cooling liquid in the valve core flow channel 23 is avoided, and cooling liquid (such as cooling liquid in a valve cavity or cooling liquid in other valve core flow channels 23) outside the valve core flow channel 23 is prevented from entering the valve core flow channel 23.

Referring to fig. 6, in some embodiments of the present application, the first blocking portion 26 is provided on the outer wall of the spool housing 21.

The first blocking portion 26 is a sealing member for blocking the liquid inlet 14 and/or the liquid outlet 15, and may be made of nitrile rubber, polytetrafluoroethylene, or the like, which is not limited by the present application.

According to the multi-way valve provided by the application, the valve core shell 21 rotates to drive the first blocking part 26 to do circular motion, and when the first blocking part 26 rotates to correspond to the position of the liquid inlet 14 or the liquid outlet 15, the liquid inlet 14 or the liquid outlet 15 can be blocked, so that a cooling liquid pipeline where the liquid inlet 14 and the liquid outlet 15 are positioned is closed. When the first blocking part 26 rotates to be staggered with the positions of the liquid inlet 14 and the liquid outlet 15, the liquid inlet 14 and the liquid outlet 15 are communicated with the valve cavity, a cooling liquid pipeline where the liquid inlet 14 and the liquid outlet 15 are positioned is opened, and cooling liquid can circulate.

In some embodiments of the present application, the number of the first blocking portions 26 may be two, three, etc., and simultaneously block the liquid inlet 14 and the liquid outlet 15.

Referring to fig. 7, in some embodiments of the present application, a second blocking portion is further provided on the bottom end of the valve core 20, and the second blocking portion is used to block the flow passage 13 that is not in communication with the valve core flow passage 23 from among the at least three flow passage 13 when the valve core 20 rotates to a different position.

The second blocking portion is a member for sealing the flow passage opening 13, and is not limited to this, and a material such as nitrile rubber or polytetrafluoroethylene may be used in correspondence with the position of the flow passage opening 13.

The multi-way valve provided by the embodiment of the application seals or seals the runner port 13 which is not communicated with the valve core runner 23 through the second sealing part, so that when the valve core 20 rotates to different positions, only the cooling liquid in the runner port 13 which is communicated with the valve core runner 23 can flow, and meanwhile, the leakage probability of the cooling liquid can be reduced.

Referring to fig. 7, in some embodiments of the present application, the second blocking portion includes a second sealing ring 25 disposed on the bottom plate 22, and the second sealing ring 25 is located on a side of the bottom plate 22 facing the bottom wall and can be used to surround the flow channel port 13 that is not in communication with the spool flow channel 23.

The multi-way valve provided by the application seals or seals the runner ports 13 which are not communicated with the valve core runner 23 through the second sealing ring 25, when the multi-way valve works, one part of the runner ports 13 are communicated with the valve core runner 23, the rest of the runner ports 13 are aligned with the second sealing ring 25, the second sealing ring 25 seals the gap between the runner ports 13 and the bottom plate 22, and the cooling liquid in the runner ports 13 is prevented from leaking into the valve core runner 23 or the valve cavity.

In some embodiments of the present application, preferably, the number M of the flow ports 13 is not less than 2 times the number N of the spool flow channels 23, the number P of the second blocking portions is not more than (M-2N), where M is an integer not less than 3, N is an integer not less than 1, and P is an integer not less than 0.

Through limiting the number relation of the flow passage opening 13, the valve core flow passage 23 and the second blocking part, the number of the flow passage opening 13, the valve core flow passage 23 and the second blocking part can be matched, so that the flow passage opening 13 which is not communicated with the valve core flow passage 23 can be blocked, and the occurrence of the leakage condition of the cooling liquid in the flow passage opening 13 is avoided.

Referring to fig. 4 and 7, in some embodiments of the present application, the number M of the flow passages 13 is 7, the number N of the spool flow passages 23 is 2, and the number P of the second blocking portions is 3.

In some embodiments of the present application, the number M of the fluid passages 13 is 3, the number N of the spool fluid passages 23 is 1, and the number P of the second blocking portions is 1.

In some embodiments of the present application, the number M of the fluid passages 13 is 4, the number N of the spool fluid passages 23 is 2, and the number P of the second blocking portions is 0.

In other embodiments of the present application M, N, P may be other integers satisfying P.ltoreq.M-2N, as the present application is not limited.

In some embodiments of the present application, the valve body 10 further includes a sealing gasket 16 disposed on the bottom wall 111, the sealing gasket 16 is disposed between the bottom wall 111 and the bottom plate 22, the sealing gasket 16 is used for directly matching with the bottom plate 22, and a plurality of through-flow ports 161 disposed in one-to-one correspondence with the plurality of flow passage ports 13 are formed in the sealing gasket 16.

The gasket 16 is a sealing member for sealing a gap between the bottom wall 111 and the bottom plate 22 of the valve body 20, and may be made of natural rubber, styrene-butadiene rubber, neoprene, butyl, ethylene-propylene rubber, butyl, urethane, acrylate, fluoro rubber, silicone rubber, or the like.

According to the multi-way valve provided by the embodiment of the application, the sealing base plate 16 is arranged between the bottom wall 111 and the bottom plate 22, the bottom wall 111 and the bottom plate 22 compress the sealing base plate 16, so that the sealing performance between the bottom wall 111 of the valve body 10 and the bottom end of the valve core 20 can be improved, and the leakage probability of cooling liquid is reduced. By providing the flow passage 161 corresponding to the plurality of flow passage ports 13 one by one in the seal gasket 16, communication between the flow passage ports 13 and the spool flow passage 23 is not affected.

Referring to fig. 2 and 6, in some embodiments of the application, the valve cartridge 20 includes a top end disposed opposite a bottom end with a spindle portion 40 disposed thereon.

The top end refers to the end of the spool 20 remote from the bottom wall 111.

The multi-way valve provided by the application drives the valve core 20 to rotate through the rotating shaft part 40 so as to switch modes and open and close the liquid inlet 14 and the liquid outlet 15.

In some embodiments of the present application, the spindle portion 40 is integrally formed with the valve core housing 21, alternatively, the spindle portion 40 may be fixed to the valve core housing 21 by welding, bolts, or the like.

Referring to fig. 1, in some embodiments of the application, the multi-way valve further includes a driver 30, the driver 30 being in driving connection with the spindle portion 40, in particular by means of a gear engagement connection or a spline connection.

The valve core 20 can rotate under the drive of the driver 30, so as to drive the valve core 20 to rotate, thereby realizing mode switching and opening and closing of the liquid inlet 14 and the liquid outlet 15.

In some embodiments of the present application, the spindle portion 40 may also be manually rotated to perform mode switching.

In some embodiments of the application, the drive 30 is a motor.

Referring to fig. 1-3, the valve body 10 includes a valve seat 11 and an end cap 12, the valve seat 11 is composed of a bottom wall 111 and a side wall 112, the end cap 12 is mounted at one end of the side wall 112 far away from the bottom wall 111, the end cap 12 is provided with a through hole, at least part of the rotating shaft portion 40 extends out of the valve cavity through the through hole, and the driver 30 and the valve core 20 are respectively located at two sides of the end cap 12.

The end cap 12 is a member that covers the opening of the valve seat 11 and encloses a valve chamber with the bottom wall and the side wall of the valve seat 11. The through hole refers to a through hole provided in the end cap 12 for the shaft portion 40 to pass through.

The multi-way valve provided by the application is enclosed with the valve seat 11 through the end cover 12 to form a valve cavity, and the rotating shaft part extends out of the valve cavity through the through hole to be connected with the driver, so that the interior of the valve cavity is isolated from the outside.

In some embodiments of the present application, the end cap 12 is fixedly connected to the valve seat 11 by a screw, alternatively, the end cap 12 and the valve seat 11 may be fixedly connected by a bolt or other means, which is not limited by the present application.

Referring to fig. 6, in some embodiments of the present application, a third sealing ring 27 is disposed at the top end of the valve core housing 21, and the rotating shaft portion 40 is located at the center of the third sealing ring 27, where the third sealing ring 27 corresponds to a via hole on the end cover 12, and is used for sealing a gap between the valve core housing 21 and the end cover 12, so as to prevent the coolant in the valve cavity from leaking from the via hole.

In some embodiments of the present application, the fluid medium in each of the flow ports 13 in the multi-way valve is not limited to a cooling liquid, but may be other fluids, such as water, oil, gas, etc., and the present application is not limited thereto.

Referring to fig. 2-7, the multi-way valve provided by the application comprises a valve body 10, a valve core 20 and a driver 30, wherein the valve body 10 comprises a valve seat 11 and an end cover 12, the valve seat 11 comprises a bottom wall 111 and a side wall 112 connected with the bottom wall 111, the side wall 112 and the end cover 12 are enclosed together to form a valve cavity, and the driver 30 is used for driving the valve core 20 to rotate around an axis thereof in the valve cavity. The top end of the valve core 20 is provided with a rotating shaft portion 40, and the rotating shaft portion 40 is connected with the driver 30 through a through hole provided in the end cover 12.

The bottom wall 111 is provided with a fluid passage opening 13, which includes a first sub-fluid passage opening 131 and six second sub-fluid passage openings 132, wherein the geometric center of the first sub-fluid passage opening 131 is arranged in line with the rotation center line of the valve core 20, and each second sub-fluid passage opening 132 is arranged on the bottom wall 111 at equal intervals in the circumferential direction by taking the first sub-fluid passage opening 131 as a center.

The spool 20 includes a bottom plate 22 and a spool housing 21 provided on a side of the bottom plate 22 away from the bottom wall 111, the bottom plate 22 being recessed inward of the spool housing 21 to form a spool flow passage 23. The spool flow passage 23 includes a first spool flow passage 231 and a second spool flow passage 232. The first spool flow passage 231 is used for communicating the first sub flow passage port 131 with any one of the second sub flow passage ports 132, and the second spool flow passage 232 is used for communicating two second sub flow passage ports 132 separated by one second sub flow passage port 132.

The side wall 112 is provided with a liquid inlet 14 and a liquid outlet 15 which are communicated with the valve cavity. The outer side wall of the valve core housing 21 is provided with a first blocking portion 26, and the first blocking portion 26 is used for blocking the liquid inlet 14 when rotating around the shaft along with the valve core 20.

The bottom plate 22 is provided with a first sealing ring 24 and a second sealing ring 25 on a side facing the bottom wall 111, the first sealing ring 24 being arranged around the opening of the valve core flow passage 23, and the second sealing ring 25 being arranged around the flow passage opening 13.

A sealing pad 16 is arranged between the bottom wall 111 and the bottom plate 22, and seven through-flow ports 161 which are arranged in one-to-one correspondence with the seven flow passage ports 13 are arranged on the sealing pad 16.

Working principle:

Referring to fig. 4, since the 6 second sub-flow ports 132 are disposed at equal intervals around the first sub-flow port 131, the valve core 20 can be switched between the first and second working modes every 60 ° of rotation. For convenience of description, the first sub-channel port 131 is hereinafter named as a C port, and the 6 second sub-channel ports 132 include one a port, one B port, two D ports, and two E ports, respectively. Wherein two D ports are communicated with each other at the outside of the valve body 10, and two E ports are communicated with each other at the outside of the valve body 10.

Referring to fig. 7, one end of the first spool flow passage 231 communicates with the C port, and the other end is used to communicate with any one of the a port, the B port, the two D ports, and the two E ports. The second spool flow passage 232 is perpendicular to the first spool flow passage 231 for communicating two ports of one of the a port, the B port, the two D ports, and the two E ports.

Referring to fig. 8-15, the multi-way valve provided by the embodiment of the application has the following six working modes.

Mode one: referring to fig. 8 and fig. 9, fig. 8 is a schematic perspective view of a multi-way valve in a first mode according to an embodiment of the present application, and fig. 9 is a schematic cross-sectional view of a multi-way valve in a first mode according to an embodiment of the present application. As can be seen from fig. 8 and 9, in the mode one, the first spool flow passage 231 communicates the a port with the C port, and the second spool flow passage 232 communicates the D port with the E port. At this time, the coolant can flow between the port a and the port C and between the port D and the port E. At the same time, the first blocking part 26 blocks the liquid inlet 14, the liquid inlet 14 is in a closed state, and the cooling liquid cannot circulate between the liquid inlet 14 and the liquid outlet 15.

Mode two: referring to fig. 10 and 11, fig. 10 is a schematic perspective view of a mode two of a multi-way valve according to an embodiment of the present application, and fig. 11 is a schematic cross-sectional view of a mode two of a multi-way valve according to an embodiment of the present application. Rotating spool 20 120 counter-clockwise in the mode one state may switch to mode two. As can be seen from fig. 10 and 11, in the second mode, the first spool flow passage 231 communicates the D port with the C port, and the second spool flow passage 232 communicates the a port with the E port. In this case, the coolant can flow between the D port and the C port and between the a port and the E port. At this time, the first blocking portion 26 does not block the liquid inlet 14 or the liquid outlet 15, the liquid inlet 14 and the liquid outlet 15 are in an open state, and the cooling liquid can circulate between the liquid inlet 14 and the liquid outlet 15.

Mode three: referring to fig. 12 and 13, fig. 12 is a schematic perspective view of a multi-way valve mode three according to an embodiment of the present application, and fig. 13 is a schematic cross-sectional view of the multi-way valve mode three according to an embodiment of the present application. Rotating the spool 20 60 ° clockwise in the mode one state may switch to mode three. As can be seen from fig. 12 and 13, in the third mode, the first spool flow passage 231 communicates the B port with the C port, and the second spool flow passage 232 communicates the D port with the E port. In this case, the coolant can flow between the port B and the port C and between the port D and the port E. At this time, the first blocking portion 26 does not block the liquid inlet 14 or the liquid outlet 15, the liquid inlet 14 and the liquid outlet 15 are in an open state, and the cooling liquid can circulate between the liquid inlet 14 and the liquid outlet 15.

Mode four: referring to fig. 14 and 15, fig. 14 is a schematic perspective view of a multi-way valve mode four according to an embodiment of the present application, and fig. 15 is a schematic cross-sectional view of the multi-way valve mode four according to an embodiment of the present application. Rotating the spool 20 60 deg. counterclockwise in the mode one state may switch to mode four. As can be seen from fig. 14 and 15, in the fourth mode, the first spool flow passage 231 communicates the D port with the C port, and the second spool flow passage 232 communicates the B port with the E port. In this case, the coolant can flow between the D port and the C port and between the B port and the E port. At this time, the first blocking portion 26 does not block the liquid inlet 14 or the liquid outlet 15, the liquid inlet 14 and the liquid outlet 15 are in an open state, and the cooling liquid can circulate between the liquid inlet 14 and the liquid outlet 15.

Mode five (not shown): rotating the spool 20 60 ° clockwise in the mode three state may switch to mode five. In the mode five state, the first spool flow passage 231 communicates the port C with the port E, and the second spool flow passage 232 communicates the port a with the port D. In this case, the coolant can flow between the port C and the port E and between the port a and the port D. At the same time, the first blocking part 26 blocks the liquid outlet 15, and at this time, the cooling liquid cannot circulate between the liquid inlet 14 and the liquid outlet 15.

Mode six (not shown): in the mode two state, rotating the spool 20 counterclockwise by 60 ° may be switched to the mode six. In the mode six state, the first spool flow passage 231 communicates the port C with the port E, and the second spool flow passage 232 communicates the port B with the port D. In this case, the coolant can flow between the port C and the port E and between the port B and the port D. At this time, the first blocking portion 26 does not block the liquid inlet 14 or the liquid outlet 15, the liquid inlet 14 and the liquid outlet 15 are in an open state, and the cooling liquid can circulate between the liquid inlet 14 and the liquid outlet 15.

Referring to fig. 16, an embodiment of the present application further provides a thermal management system 50, where the thermal management system 50 includes a multi-way valve 53 provided by any of the above embodiments.

The structure of the thermal management system 50 provided in the embodiment of the present application is shown in fig. 16, referring to fig. 16, the thermal management system includes a first water pump 51, a second water pump 52, a multi-way valve 53, and a plurality of coolant pipes, wherein WCC in the figure is a water-cooled condenser, and LTR is a front-end radiator tank. The multi-way valve 53 is a six-way valve having A, B, C, D, E, F six ports, wherein the F port is used to control the communication state of the coolant pipe in which the first water pump 51 is located. When the F port is closed, the cooling liquid pipeline where the first water pump 51 is located is closed, and when the F port is opened, the cooling liquid pipeline where the first water pump 51 is located is opened. By rotating the spool of the multi-way valve 53, the opening and closing of the F port can be controlled, while the communication state between the A, B, C, D, E ports can be controlled.

The thermal management system 50 provided by the embodiment of the application can reduce the number of valves in the thermal management system, thereby improving the integration level of the thermal management system, reducing the number of parts and saving space.

In some embodiments of the present application, the thermal management system 50 is a battery thermal management system, alternatively, the thermal management system 50 may be a motor thermal management system or an air conditioning thermal management system, which is not limited by the present application.

Embodiments of the present application also provide a vehicle, in some embodiments of the present application, the vehicle includes the multi-way valve provided in any of the above embodiments, or includes the thermal management system provided in the above embodiments, or has both the multi-way valve and the thermal management system provided in the above embodiments.

In some embodiments of the present application, the vehicle is a new energy vehicle 60, referring to fig. 17, the new energy vehicle 60 includes a thermal management system 50.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application, and are intended to be included within the scope of the appended claims and description. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims (17)

1. The multi-way valve is characterized by comprising a valve body (10) and a valve core (20), wherein the valve body (10) comprises a bottom wall (111) and a side wall (112) connected to the bottom wall (111), the bottom wall (111) and the side wall (112) enclose to form a valve cavity, and the valve core (20) can rotate around an axis of the valve cavity;

The valve core (20) comprises a bottom end matched with the bottom wall (111), a plurality of flow passage openings (13) are formed in the bottom wall (111), at least one valve core flow passage (23) is formed in the bottom end of the valve core (20), the valve core flow passage (23) is used for communicating more than two flow passage openings (13), and when the valve core (20) rotates and is located at different positions, the valve core flow passage (23) can communicate with different flow passage openings (13);

The side wall (112) is provided with a liquid inlet (14) and a liquid outlet (15) which are communicated with the valve cavity, the valve core (20) is provided with a first blocking part (26), and the first blocking part (26) is used for blocking at least one of the liquid inlet (14) and the liquid outlet (15) or releasing the blocking when the valve core (20) rotates around a shaft and is positioned at different positions.

2. The multi-way valve according to claim 1, wherein the spool flow passage (23) is not in communication with the inlet port (14) and the outlet port (15).

3. The multiway valve according to claim 1, wherein each of the flow ports (13) is provided on the bottom wall (111) at intervals in the circumferential direction with respect to the rotation center line of the valve body (20) as a center.

4. A multi-way valve according to claim 3, wherein the flow passage opening (13) comprises a first sub-flow passage opening (131) and a plurality of second sub-flow passage openings (132), the distance between two adjacent second sub-flow passage openings (132) being equal.

5. The multiway valve according to claim 4, wherein the geometric center of the first sub-flow passage opening (131) is arranged in line with the rotation center line of the spool (20), each of the second sub-flow passage openings (132) is arranged on the bottom wall (111) at intervals in the circumferential direction with the rotation center line of the spool (20) as the center, and at least one of the spool flow passages (23) is used for communicating the first sub-flow passage opening (131) with at least one of the second sub-flow passage openings (132); and/or at least one of the valve core flow passages (23) is used for communicating any more than two second sub-flow passage openings (132).

6. The multiway valve of claim 5, wherein the number of spool flow channels (23) is two, the spool flow channels (23) having a first flow channel end and a second flow channel end disposed opposite the first flow channel end, wherein the first flow channel end of one spool flow channel (23) is in corresponding communication with the first sub-flow channel port (131) and the second flow channel end of the spool flow channel (23) is for corresponding communication with the second sub-flow channel port (132); the first flow passage end of the other spool flow passage (23) is used for being correspondingly communicated with one second sub-flow passage opening (132), and the second flow passage end of the other spool flow passage (23) is used for being correspondingly communicated with the other second sub-flow passage opening (132).

7. The multiway valve of claim 1, wherein the spool (20) comprises a bottom plate (22) for mating with the bottom wall (111) and a spool housing (21) provided on a side of the bottom plate (22) facing away from the bottom wall (111), the bottom plate (22) having the bottom end, at least a portion of the bottom end being recessed toward the spool housing (21) to form the spool flow channel (23).

8. Multi-way valve according to claim 7, characterized in that the side of the bottom plate (22) facing the bottom wall (111) is further provided with a first sealing ring (24) surrounding the opening of the cartridge flow channel (23).

9. The multiway valve according to claim 7, wherein the first blocking part (26) is provided on an outer wall of the spool housing (21).

10. The multi-way valve according to claim 9, wherein a second blocking portion is further provided on the bottom end for blocking a flow passage port (13) out of the plurality of flow passage ports (13) that is not in communication with the spool flow passage (23) when the spool (20) is rotated to a different position.

11. The multiway valve according to claim 10, wherein the second blocking part comprises a second sealing ring (25) arranged on the bottom plate (22), which second sealing ring (25) is located on the side of the bottom plate (22) facing the bottom wall (111) and can be used for surrounding a flow channel opening (13) which is not in communication with the spool flow channel (23).

12. The multi-way valve according to claim 1, wherein the valve body (10) further comprises a sealing gasket (16) located on the bottom wall (111), the sealing gasket (16) is located between the bottom wall (111) and the bottom end, the sealing gasket (16) is used for being directly matched with the bottom end, and a plurality of through-flow ports (161) which are arranged in one-to-one correspondence with the plurality of flow passage ports (13) are formed in the sealing gasket (16).

13. The multiway valve of any of claims 1-12, wherein the valve spool (20) comprises a top end disposed opposite the bottom end, the top end having a spindle portion (40) disposed thereon.

14. The multi-way valve according to claim 13, further comprising a driver (30), the driver (30) being in driving connection with the spindle portion (40).

15. The multiway valve of claim 14, wherein the valve body (10) comprises a valve seat (11) and an end cap (12), the valve seat (11) is composed of the bottom wall (111) and the side wall (112), the end cap (12) is mounted at one end of the side wall (112) far away from the bottom wall (111), a through hole is formed in the end cap (12), at least part of the rotating shaft part (40) extends out of the valve cavity through the through hole, and the driver (30) and the valve core (20) are respectively located at two sides of the end cap (12).

16. A thermal management system comprising the multi-way valve of any one of claims 1-15.

17. A vehicle comprising a thermal management system according to claim 16 and/or a multi-way valve according to any one of claims 1-15.