CN114458789A

CN114458789A - Multi-way valve and thermal management system with same

Info

Publication number: CN114458789A
Application number: CN202210011550.8A
Authority: CN
Inventors: 马俊; 陈开星; 王文喜; 王胜; 盛祥曦; 严爱秀
Original assignee: Zhejiang Yinlun Machinery Co Ltd
Current assignee: Zhejiang Yinlun Machinery Co Ltd
Priority date: 2022-01-06
Filing date: 2022-01-06
Publication date: 2022-05-10

Abstract

The application relates to the technical field of pipeline valves, in particular to a multi-way valve and a thermal management system with the same. The multi-way valve comprises a valve body assembly, a valve core assembly and a sealing unit, wherein a plurality of flow ports are formed in the valve body assembly, and the valve core assembly rotates in the valve body assembly so as to enable the plurality of flow ports to be communicated or separated; the sealing unit is arranged between the inner wall of the valve body assembly and the valve core assembly and comprises a convex rib, the convex rib is arranged on the side face close to the valve body assembly relatively, and the convex rib extends into the circulation port and abuts against the inner wall of the circulation port. The invention also provides a heat management system which comprises the multi-way valve. The invention has the advantages that: the convex rib stretches into the flow port and abuts against the inner wall of the valve body to be in sealing fit with the valve body, so that media can smoothly flow between the flow port, the media are prevented from flowing to other flow ports through the edge of the flow port in a series mode, the phenomenon that the media of different flow ports flow in series is caused, and the heat dissipation performance of the whole vehicle is affected.

Description

Multi-way valve and thermal management system with same

Technical Field

The application relates to the technical field of pipeline valves, in particular to a multi-way valve and a thermal management system with the same.

Background

The problems of leakage and the like caused by the fact that sealing cannot be achieved between the valve body and the valve core of the conventional multi-way valve usually occur, so that other structures inside the valve body are damaged, and the sealing performance of the multi-way valve is affected.

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the defects in the prior art and design a multi-way valve for improving the sealing performance.

In order to solve the technical problems, the invention adopts the following technical scheme:

a multi-way valve comprises a valve body assembly, a valve core assembly and a sealing unit, wherein the valve core assembly is arranged in the valve body assembly, a plurality of flow ports are formed in the valve body assembly, and the valve core assembly rotates in the valve body assembly so as to enable the flow ports to be communicated or separated; the sealing unit is arranged on the inner wall of the valve body assembly and between the valve core assemblies and comprises a convex rib, the convex rib is arranged on the side face close to the valve body assembly relatively, and the convex rib extends into the circulation port and abuts against the inner wall of the circulation port.

It can be understood that this application is through making sealed unit is kept away from be equipped with protruding muscle on the side of case subassembly, protruding muscle stretches into in the circulation mouth and butt in the inner wall of valve body, with the valve body subassembly carries out sealed cooperation, thereby makes the medium can be smoothly flow between the circulation mouth, prevent that the medium from flowing other circulation mouths through circulation mouth edge series flow, cause the phenomenon of different circulation mouth medium series flows, influence the heat dispersion of whole car.

In one embodiment, the sealing unit further includes a fixing frame and a sealing element, the fixing frame is fixed on the valve body assembly, the sealing element is arranged on one side of the fixing frame close to the valve body assembly, the sealing element is provided with a plurality of through holes, the through holes correspond to the circulation ports in a one-to-one manner, and the convex rib is arranged around the hole opening of the through hole.

It can be understood that, the convex rib is arranged around the hole opening of the through hole, so that the convex rib abuts against the inner wall of the flow port along with the sealing unit which is blocked at the periphery of the flow port, and then the sealing between the valve core assembly and the valve body assembly is realized by extruding the convex rib on the sealing element, and the convex rib increases the compression amount of the sealing element, thereby enhancing the sealing performance.

In one embodiment, the valve body assembly includes a valve body and a limiting member, the limiting member is disposed on the valve body, and the limiting member is disposed at two ends of the sealing unit and abuts against the sealing unit when the sealing unit is mounted on the valve body.

It can be understood that, by making the limiting member abut against the sealing unit with the sealing unit being mounted on the valve body, the sealing unit is prevented from rotating with the rotation of the valve core assembly, and the sealing performance of the sealing unit at the flow opening is prevented from being affected.

In one embodiment, chamfers are respectively arranged at two ends of the fixing frame close to the limiting piece, and the chamfers incline towards the direction close to the valve body.

It can be understood that, through the mount be close to the both ends of locating part are provided with the chamfer respectively, just the chamfer orientation is close to the direction slope of valve body to make the case subassembly has a transition when in the valve body internal rotation, avoid the case subassembly in the rotation in-process with the mount produces wearing and tearing, reduce life.

In one embodiment, the sealing element is connected with the fixing frame in any one of clamping, gluing and vulcanizing integrated molding.

In one embodiment, the valve body assembly comprises a valve body, a connecting plate is arranged on the outer wall surface of one side, close to the circulation port, of the valve body, a plurality of interfaces communicated with the circulation port in a one-to-one correspondence mode are arranged on the connecting plate, and the end faces, away from the hole of the circulation port, of the interfaces are located on the same plane.

It can be understood that the plurality of interfaces are located on the same plane, so that the valve body assembly is convenient to install with the corresponding external manifold through the interfaces, and other pipeline connections are omitted, so that the structure is more compact, and the material cost is lower.

In one embodiment, the valve core assembly includes a valve core body, and a conduction portion is provided on an outer wall surface of the valve core body, and the conduction portion can communicate with at least one of the flow ports, so that the flow port can communicate with the adjacent flow port through the conduction portion.

It is understood that the purpose of the control flow path is changed by making the conducting part enable the flow port to alternatively communicate with any adjacent flow port, so that two adjacent flow ports have different conducting modes or non-conducting modes.

In one embodiment, the number of the flow ports is seven, and the flow ports are a first flow port, a second flow port, a third flow port, a fourth flow port, a fifth flow port, a sixth flow port, and a seventh flow port, respectively, the first flow port, the second flow port, and the third flow port are located in a first layer and extend in a first direction, the fourth flow port, the fifth flow port, the sixth flow port, and the seventh flow port are located in a second layer and extend in a second direction, and the first direction and the second direction are parallel to each other; the conducting part comprises a first conducting part and a second conducting part, the first conducting part extends along the axial direction of the valve core body, and the first conducting part can be communicated with any two adjacent flow openings in the first layer and the second layer; the second conduction part extends along the circumferential direction of the valve core body and can be communicated with any two adjacent flow ports in the first layer or the second layer; the valve core comprises a valve body and is characterized in that a blocking part is further arranged on the outer wall surface of the valve core body, the blocking part extends along the circumferential direction of the valve core body, a blocking piece is arranged inside the blocking part, and the blocking piece can block circulation between any two adjacent circulation ports on the valve body.

It will be appreciated that the three sets of flow passages in the seven way flow valve are achieved by enabling the blocking member to block flow between any two adjacent flow openings in the valve body.

In one embodiment, the number of the first conduction part, the second conduction part and the blocking part which are arranged on the valve core body is at least two, and the multi-way valve at least comprises three working modes: a first operating mode: the first flow port and the fourth flow port are communicated through the first conducting part, the second flow port and the third flow port, the fifth flow port and the sixth flow port are communicated through two different second conducting parts respectively, and the blocking part blocks the seventh flow port to block the seventh flow port from being communicated with any other flow port; a second working mode: the first flow port and the fourth flow port, and the second flow port and the fifth flow port are respectively communicated through two different first conducting parts, the sixth flow port and the seventh flow port are communicated through the second conducting part, and the blocking part blocks the third flow port to block the third flow port from being communicated with any other flow port; the third working mode is as follows: the first circulation port and the second circulation port, the fourth circulation port and the fifth circulation port, and the sixth circulation port and the seventh circulation port are communicated through three different second conduction parts respectively, and the blocking part blocks the third circulation port to block the third circulation port from being communicated with any other circulation ports.

It can be understood that, through making the multi-way valve include three kinds of mode at least, thereby make the multi-way valve can carry out the selectivity control to the switching and the break-make of a plurality of flow paths, can replace the function that a plurality of switching-over valves are established ties with a multi-way valve, has increased the integrated level, and the cost is reduced has simplified the system.

In one embodiment, the multi-way valve further comprises a support assembly, wherein the support assembly is inserted between the valve body assembly and the valve core assembly and is in contact with one side, away from the flow opening, of the valve core assembly so as to support the valve core assembly.

It can be understood that, the support component is inserted between the valve body component and the valve core component and contacts with one side of the valve core component far away from the flow opening, so that the valve core component on the other side is supported, and the valve core component is prevented from being inclined to cause poor sealing effect.

The invention also provides the following technical scheme:

a thermal management system comprises the multi-way valve.

Compared with the prior art, according to the multi-way valve provided by the invention, the convex ribs are arranged on the side face of the sealing unit far away from the valve core assembly, extend into the circulation port and abut against the inner wall of the valve body so as to be in sealing fit with the valve body assembly, so that a medium can smoothly flow among the circulation ports, and the phenomenon that the medium flows in series to other circulation ports through the edges of the circulation ports to cause series flow of the medium of different circulation ports is prevented, and the heat radiation performance of the whole vehicle is influenced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic illustration of a multi-way valve construction provided herein;

FIG. 2 is a schematic structural diagram of a sealing unit provided in the present application;

FIG. 3 is a cross-sectional schematic view of a multi-way valve provided herein;

FIG. 4 is a schematic diagram of a detailed structure of the valve body and the sealing unit;

FIG. 5 is a schematic cross-sectional structural view of a valve body assembly provided herein;

FIG. 6 is a schematic illustration of an exploded view of the multi-way valve provided herein;

FIG. 7 is a schematic structural view of a valve core assembly provided herein;

FIG. 8 is a schematic bottom view of the multi-way valve provided herein;

fig. 9 is a schematic diagram of a three-way valve and two four-way valves connected in series in a conventional structure.

Reference numerals: 100. a multi-way valve; 10. a valve body assembly; 11. a valve body; 111. a flow port; 1111. a first circulation port; 1112. a second flow port; 1113. a third flow port; 1114. a fourth flow port; 1115. a fifth circulation port; 1116. a sixth circulation port; 1117. a seven-flow port; 1111', a first circulation port; 1112', a second flow port; 1113' and a third flow port; 1114', a fourth flow port; 1115', a fifth flow port; 1116', a sixth circulation port; 1117' and seven circulation ports; 1118', an eighth flow port; 1119' and a ninth circulation port; 1110', a tenth flow port; 1100', a tenth circulation port; 12. a connecting plate; 121. an interface; 13. a limiting member; 20. a valve core assembly; 21. a valve core body; 211. a conduction part; 2111. a first conduction part; 2112. a second conduction part; 212. a blocking section; 2121. a barrier; 22. a barrier plate; 30. a sealing unit; 31. a fixed mount; 311. chamfering; 32. a seal member; 321. a rib is protruded; 322. a through hole; 40. a support assembly.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "secured to" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used in the description of the present application are for illustrative purposes only and do not represent the only embodiments.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact via an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

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 in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the description of the present application, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 9, the present invention provides a multi-way valve 100, which is installed on a new energy vehicle, for example, applied to a pure electric vehicle or a hybrid vehicle as a component of a thermal management system, and implements a function of reversing a medium or adjusting a flow rate. In the present embodiment, the multi-way valve 100 is mounted on a manifold and mainly used for reversing a medium, and the medium is a liquid such as water, but in other embodiments, the multi-way valve 100 may be used for flowing other media such as gas.

In the existing multi-way valve, the problems of leakage and the like are usually caused because the valve body and the valve core are not sealed in place, so that other structures inside the valve body are damaged, and the normal work of the multi-way valve is influenced.

As shown in fig. 1, in order to solve the problem of poor sealing performance in the conventional multi-way valve, an embodiment of the present invention provides a multi-way valve 100, which includes a valve body assembly 10, a valve core assembly 20 and a sealing unit 30, wherein the valve core assembly 20 is disposed in the valve body assembly 10, a plurality of flow openings 111 are formed in the valve body assembly 10, and the valve core assembly 20 rotates in the valve body assembly 10 to connect or disconnect the plurality of flow openings 111; the sealing unit 30 is disposed between the inner wall of the valve body assembly 10 and the valve core assembly 20, the sealing unit 30 includes a rib 321, the rib 321 is disposed on the side surface close to the valve body assembly 10, and the rib 321 extends into the flow port 111 and abuts against the inner wall of the flow port 111.

It should be noted that, in the present application, the convex rib 321 is disposed on the side of the sealing unit 30 away from the valve core assembly 20, and the convex rib 321 extends into the flow port 111 and abuts against the inner wall of the valve body 11 to be in sealing fit with the valve body assembly 10, so that the medium can smoothly flow between the flow ports 111, and the medium is prevented from flowing to other flow ports 111 through the edge of the flow port 111 in series, which causes the phenomenon that the media of different flow ports 111 flow in series, and affects the heat dissipation performance of the entire vehicle.

Because different circulation ports 111 are communicated pairwise to form different circulation channels, the different circulation channels affect the switching of the cooling/heating modes inside the whole vehicle, and therefore if different circulation ports 111 are used for media series flow, the effect of the cooling/heating modes of the whole vehicle is directly affected, and the heat radiation performance of the whole vehicle is affected.

As shown in fig. 2, the sealing unit 30 further includes a fixing frame 31 and a sealing member 32. The fixing frame 31 is provided with a plurality of through holes 322 which are in one-to-one correspondence with the circulation ports 111, the sealing element 32 is arranged on one side of the fixing frame 31 close to the valve body assembly 10, and when the fixing frame 31 is fixed on the valve body assembly 10, the convex rib 321 can be arranged on the valve body assembly 10 along with the fixing frame 31 and extend into the circulation ports 111 and can be abutted against the inner wall of the peripheral edge of the circulation ports 111; on the fixing frame 31, a rib 321 is provided around the opening of the through hole 322.

Since the through holes 322 corresponding to the flow openings 111 one by one are formed in the fixing frame 31, good flow can be realized between the through holes 322 in the fixing frame 31 and the flow openings 111 in the valve body assembly 10; nevertheless, the cross flow of the medium between the flow port 111 and between the through hole 322 and the through hole 322 needs to be avoided, and if the medium leaks from the edge of the flow port 111 or the through hole 322 and enters the inside of the valve body assembly 10, the normal operation of other components inside the valve body assembly 10 may be affected, and the medium may be seriously damaged, so that the sealing unit 30 provided in an embodiment of the present invention is to solve the problem, and improve the sealing performance.

It should be noted that, when the fixing frame 31 is fixed to the valve body assembly 10, the rib 321 abuts against the inner wall of the flow port 111 along with the sealing unit 30 being sealed at the periphery of the flow port 111, so that the sealing between the valve core assembly 20 and the valve body assembly 10 is realized by pressing the rib 321 on the sealing member 32, and the rib 321 increases the compression amount of the sealing member 32, thereby enhancing the sealing performance.

Further, the valve body assembly 10 includes a valve body 11 and a stopper 13. The stopper 13 is disposed on the valve body 11, and the stopper 13 abuts against the sealing unit 30 as the sealing unit 30 is mounted on the valve body 11.

It should be noted that, because the valve body 11 is substantially cylindrical, the valve core assembly 20 is cylindrical and matched with the valve body 11, so that it can rotate in the valve body 11 conveniently. The sealing unit 30 is also provided in a substantially arc shape so that the sealing unit 30 can be fitted to the inner wall of the valve body 11; of course, the sealing unit 30 may be flat, and the sealing unit 30 may be bent in an arc shape and then mounted in the valve body 11, which is not limited herein.

After the sealing unit 30 is installed in the valve body 11, the valve core assembly 20 is installed in the valve body 11 again, in order to prevent the sealing unit 30 from deforming in the process of rotating the valve core assembly 20 in the valve body 11, or prevent the sealing unit 30 from rotating along with the rotation of the valve core assembly 20, a limiting part 13 used for limiting the sealing unit 30 is arranged in the valve body, the limiting part 13 is arranged as a convex strip extending along the axis direction of the valve body 11 and is respectively arranged at two ends of the sealing unit 30, so that the two ends of the sealing unit 30 can be abutted against the limiting part 13, and the rotation of the sealing unit 30 is limited.

As shown in fig. 3 and 4, chamfers 311 are respectively provided at both ends of the fixing frame 31 near the stopper 13, and the chamfers 311 are inclined toward the valve body 11.

It should be noted that, due to the arrangement of the chamfer 311, a transition exists at the sealing unit 30 when the valve core assembly rotates in the valve body, which is equivalent to the rotation of the valve core assembly 20 of the chamfer 311 playing a role of avoiding, so that abrasion caused by frequent scraping between the valve core assembly 20 and a fixed frame in the rotating process is avoided, and the service life of the sealing unit 30 is reduced.

In one embodiment of the present invention, the sealing member 32 is connected to the fixing frame 31 in a clamping manner; alternatively, the sealing element 32 is connected to the holder 31 by gluing. Of course, the sealing element 32 and the fixing frame 31 are not limited to be connected by clipping and gluing, and in other embodiments, the sealing element 32 and the fixing frame 31 may be connected by riveting, press fitting or other methods, which are not limited herein.

Preferably, in the present embodiment, the sealing member 32 and the fixing frame 31 are integrally formed by vulcanization.

When the sealing element 32 is connected with the fixing frame 31 in a clamping manner, specifically, a convex block (not shown) is arranged on the side surface of the sealing element 32 far away from the convex rib 321, a plurality of grooves (not shown) matched with the convex block are arranged on the side surface of the fixing frame 31 close to the sealing element 32, and the convex block is clamped in the grooves; or, a plurality of protrusions are disposed on the side surface of the fixing frame 31 close to the sealing element 32, a plurality of grooves are disposed on the side surface of the sealing element 32 far from the convex rib 321, and the protrusions are clamped into the grooves.

The clamping between the sealing element 32 and the fixing frame 31 is realized in a concave-convex matching mode between the convex blocks and the grooves, and the number of the convex blocks and the grooves can be set to be multiple in order to further enhance the clamping strength between the fixing frame 31 and the sealing element 32.

Of course, the manner of clamping is not limited to this; in one embodiment, a convex strip, a convex ring, or the like may be provided on the fixing frame 31 or the sealing member 32; in another embodiment, the fixing frame 31 or the sealing member 32 may be provided with barbs, which are engaged with each other and hooked to each other to prevent the barbs from being disengaged, so as to enhance the connection strength between the fixing frame 31 and the sealing member 32 and prevent the barbs from being disengaged; the specific clamping manner of the fixing frame 31 and the sealing member 32 is not limited herein.

In one embodiment, the fixing frame 31 is an elastic member, and the fixing frame 31 is made of a plastic framework material, and the fixing frame 31 made of the plastic framework material can reduce the friction resistance of relative movement between the valve core assembly 20 and the fixing frame 31 when the two are in contact with each other, so as to reduce the torque of rotation of the valve core assembly 20; the sealing member 32 is made of ethylene propylene diene monomer (EPDM rubber); of course, in other embodiments, the fixing frame 31 and the sealing member 32 may be made of other materials, which is not limited herein.

In one embodiment, the fixing frame 31 may not be provided, and a lubricating layer (not shown in the figure) may be directly provided on the surface of the sealing member 32, the lubricating layer may be a polytetrafluoroethylene film (PTFE film) integrally vulcanized with the sealing unit 30, or a polytetrafluoroethylene coating (PTFE coating) sprayed on the sealing unit 30, in order to reduce the friction between the sealing unit 30 and the valve core assembly 20, so as to make the valve core assembly 20 rotate more smoothly, reduce the wear of the sealing unit 30 and the valve core assembly 20, prolong the service life, and reduce the replacement cost.

As shown in fig. 5, the valve body assembly 10 includes a valve body 11. The outer wall surface of the valve body 11 close to the circulation port 111 is provided with a connecting plate 12, the connecting plate 12 is provided with a plurality of ports 121 communicated with the circulation port 111 in a one-to-one correspondence manner, and end surfaces of the ports of the plurality of ports 121 far away from the circulation port 111 are all located on the same plane.

It should be noted that, because the valve body 11 is substantially cylindrical, the circulation ports 111 formed in the side wall of the valve body 11 are also distributed on the arc-shaped surface, and in order to connect with other external pipelines, because the setting angles and the radians of each circulation port 111 are different, each circulation port 111 needs to be correspondingly connected with one pipeline, which not only increases the cost, but also saves space, and results in a particularly complex overall structure.

In order to solve the problem, the same connecting plate 12 that can be in the same place all circulation ports 111 integration that sets up on the outer wall surface that the valve body 11 is close to circulation port 111 one side, through set up the interface 121 that communicates with circulation port 111 one-to-one on connecting plate 12, and all interfaces 121 all are located the coplanar on connecting plate 12, so just can make things convenient for valve body subassembly 10 to pass through connecting plate 12 unified and manifold installation, simple to operate not only, other tube coupling has been saved simultaneously, make the structure more compact, and material cost is lower.

As shown in FIG. 6, the multi-way valve 100 also includes a support assembly 40. The support assembly 40 is interposed between the valve body assembly 10 and the valve core assembly 20, and contacts with a side of the valve core assembly 20 away from the through hole 111 to support the valve core assembly 20.

It should be noted that, the sealing unit 30 is disposed at the flow opening 111, and when the sealing member 32 is deformed by extrusion, deformation elastic force is generated, which may cause the valve core assembly 20 to be eccentric, thereby affecting the sealing effect, and therefore, in order to prevent the valve core assembly 20 from being eccentric, the support assembly 40 is disposed on one side of the valve core assembly 20 away from the flow opening 111, thereby supporting the valve core assembly 20 on the other side, and preventing the valve core assembly 20 from being inclined, thereby causing the sealing effect to be poor.

As shown in fig. 7, the cartridge assembly 20 includes a cartridge body 21. The outer wall surface of the valve body 21 is provided with a conduction part 211, and the conduction part 211 can be communicated with at least one circulation port 111, so that the circulation port 111 can be communicated with the adjacent circulation port 111 through the conduction part 211, thereby achieving the purpose of controlling the flow path direction.

It should be noted that, because the sealing unit 30 is located between the outer wall surface of the valve plug body 21 and the inner wall surface of the valve body 11, the through holes 322 on the fixing frame 31 correspond to the flow openings 111 on the valve body 11 one by one, and the conduction parts 211 are not communicated with each other, a blocking plate 22 is formed between the conduction parts 211, the blocking plates 22 at two ends of one conduction part 211 abut against the wall surface of the fixing frame 31 between the through holes 322 and the through holes 322, the sealing unit 30 realizes the sealing between the sealing unit 30 and the valve body 11 through the compression convex rib 321 at the side close to the valve body 11, and the fixing frame 31 can be tightly adhered to the valve plug body 21 through the reaction force of the compression deformation of the sealing member 32, thereby realizing the sealing between the conduction parts 211.

As shown in fig. 5 and 8, in one embodiment of the present invention, the number of the flow-through holes 111 is seven, and the flow-through holes are a first flow-through hole 1111, a second flow-through hole 1112, a third flow-through hole 1113, a fourth flow-through hole 1114, a fifth flow-through hole 1115, a sixth flow-through hole 1116 and a seventh flow-through hole 1117, the first flow-through hole 1111, the second flow-through hole 1112 and the third flow-through hole 1113 are located in a first layer and extend in a first direction, the fourth flow-through hole 1114, the fifth flow-through hole 1115, the sixth flow-through hole 1116 and the seventh flow-through hole 1117 are located in a second layer and extend in a second direction, and the first direction and the second direction are parallel to each other; the conduction portion 211 includes a first conduction portion 2111 and a second conduction portion 2112, the first conduction portion 2111 extends in the axial direction of the valve body 21, and the first conduction portion 2111 can communicate with any two adjacent flow ports 111 in the first layer and the second layer; the second conduction portion 2112 extends in the circumferential direction of the valve body 21, and the second conduction portion 2112 can communicate with any two adjacent communication ports 111 in the first layer or the second layer.

The outer wall surface of the valve body 21 is further provided with a blocking portion 212, the blocking portion 212 extends along the circumferential direction of the valve body 21, a blocking piece 2121 is arranged inside the blocking portion 212, and the blocking piece 2121 can block the circulation between any two adjacent circulation holes 111 on the valve body 11.

In summary, the outer wall surface of the valve body 21 is provided with a first conduction portion 2111 extending in the axial direction of the valve body 21, a second conduction portion 2112 extending in the circumferential direction of the valve body 21, and a blocking portion 212 also extending in the circumferential direction of the valve body 21. In the present embodiment, at least two first conduction portions 2111, second conduction portions 2112, and blocking portions 212 are provided. That is, when the valve body 21 rotates in the valve body 11 and rotates to different positions, the conduction portion 211 and the blocking portion 212 of the valve body 21 have different communication and blocking manners with respect to the communication ports 111 of the valve body 11, but in general, one of the seven communication ports 111 of the valve body 11 must be in a blocking state, and the remaining six communication ports 111 are communicated in a combined manner of two-by-two communication, so as to realize the operation modes of the multi-way valve 100 in multiple communication states.

The multi-way valve 100 provided by one embodiment of the present invention includes at least the following three modes of operation:

a first operating mode: the first communication port 1111 and the fourth communication port 1114 communicate with each other through the first communication part 2111, the second communication port 1112 and the third communication port 1113, and the fifth communication port 1115 and the sixth communication port 1116 communicate with each other through two different second communication parts 2112, respectively, the blocking part 212 blocks the seventh communication port 1117, and blocks the seventh communication port 1117 from communicating with any other communication port 111;

a second working mode: the first flow port 1111 and the fourth flow port 1114, and the second flow port 1112 and the fifth flow port 1115 are connected to each other through two different first conduction portions 2111, the sixth flow port 1116 and the seventh flow port 1117 are connected to each other through the second conduction portion 2112, the blocking portion 212 blocks the third flow port 1113, and the third flow port 1113 is blocked from being connected to any other flow port 111;

the third working mode is as follows: the first port 1111 and the second port 1112, the fourth port 1114 and the fifth port 1115, and the sixth port 1116 and the seventh port 1117 are respectively communicated with each other through three different second communication portions 2112, and the blocking portion 212 blocks the third port 1113 and blocks the third port 1113 from communicating with any other port 111.

It should be noted that the multi-way valve 100 provided by an embodiment of the present invention is not limited to the above three operation modes, which are only three of the operation modes that the multi-way valve 100 can realize, and the rest of the operation modes are not listed here.

It should be noted that, in the multi-way valve 100 provided in an embodiment of the present invention, the valve core body 21 is provided with the conduction portion 211 to communicate any two adjacent flow ports 111 on the valve body 11, compared to the existing method of connecting one three-way valve and two four-way valves in series, four connection ports 121 are saved, but a working mode that can be realized by connecting one three-way valve and two four-way valves in series is also realized, so that the integration level is improved, the cost is also reduced, and the space size is reduced.

In order to more easily understand how the multi-way valve 100 provided by the present invention can achieve a simplified work flow compared to the manner that one three-way valve and two four-way valves are connected in series in the existing structure, a schematic diagram of the principle that one three-way valve and two four-way valves are connected in series in the existing structure is shown in the attached drawings of the present invention, please refer to fig. 9.

When a three-way valve and two four-way valves are connected in series, there are a total of 11 flow ports, i.e., a first flow port 1111 ', a second flow port 1112 ', a third flow port 1113 ', a fourth flow port 1114 ', a fifth flow port 1115 ', a sixth flow port 1116 ', a seventh flow port 1117 ', an eighth flow port 1118 ', a ninth flow port 1119 ', a tenth flow port 1110 ', and an eleventh flow port 1100 '. In this conventional configuration, three operation modes corresponding to the three operation modes that can be realized by the above-described multi-way valve 100 are as follows:

a first operating mode: the seventh flow port 1117 ' is closed, the third flow port 1113 ' communicates with the second flow port 1112 ' via the eighth flow port 1118 ' and the tenth flow port 1110 ', the sixth flow port 1116 ' communicates with the fifth flow port 1115 ' via the ninth flow port 1119 ' and the eleventh flow port 1100 ', and the first flow port 1111 ' communicates with the fourth flow port 1114 ';

a second working mode: the third port 1113 ' is closed, the seventh port 1117 ' is communicated with the sixth port 1116 ' via the eighth port 1118 ' and the tenth port 1110 ', the second port 1112 ' is communicated with the fifth port 1115 ' via the ninth port 1119 ' and the eleventh port 1100 ', and the first port 1111 ' is communicated with the fourth port 1114 ';

the third working mode is as follows: the third flow port 1113 ' is closed, the seventh flow port 1117 ' communicates with the sixth flow port 1116 ' via the eighth flow port 1118 ' and the tenth flow port 1110 ', the second flow port 1112 ' communicates with the first flow port 1111 ' via the ninth flow port 1119 ' and the eleventh flow port 1100 ', and the fifth flow port 1115 ' communicates with the fourth flow port 1114 '.

Compared with the prior art, the multi-way valve 100 provided by the invention obviously saves the eighth flow port 1118 ', the ninth flow port 1119', the tenth flow port 1110 'and the eleventh flow port 1100' compared with the prior art in which a three-way valve and two four-way valves are connected in series, and achieves the same effect as the prior art in which a three-way valve and two four-way valves are connected in series, so that the multi-way valve 100 provided by the invention has higher integration degree compared with the prior art in which a three-way valve and two four-way valves are connected in series.

According to the multi-way valve 100 provided by an embodiment of the invention, the convex rib 321 is arranged on the side surface of the sealing unit 30 away from the valve core assembly 20, and the convex rib 321 extends into the flow port 111 and abuts against the inner wall of the valve body 11 to be in sealing fit with the valve body assembly 10, so that a medium can smoothly flow between the flow ports 111, and the phenomenon that the medium flows to other flow ports 111 through the edge of the flow port 111 in series to cause the medium to flow in series at different flow ports 111 is prevented, and the heat dissipation performance of the whole vehicle is influenced.

The invention also provides a technical scheme that:

a thermal management system includes the multi-way valve 100 described above.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.

Claims

1. The multi-way valve is characterized by comprising a valve body assembly (10), a valve core assembly (20) and a sealing unit (30), wherein the valve core assembly (20) is arranged in the valve body assembly (10), a plurality of flow openings (111) are formed in the valve body assembly (10), and the valve core assembly (20) rotates in the valve body assembly (10) so as to enable the flow openings (111) to be communicated or separated;

the sealing unit (30) is arranged on the inner wall of the valve body assembly (10) and between the valve core assemblies (20), the sealing unit (30) comprises a convex rib (321), the convex rib (321) is arranged on the side face close to the valve body assembly (10) relatively, and the convex rib (321) extends into the flow opening (111) and abuts against the inner wall of the flow opening (111).

2. The multi-way valve according to claim 1, wherein the sealing unit (30) further comprises a fixing frame (31) and a sealing element (32), the fixing frame (31) is fixed on the valve body assembly (10), the sealing element (32) is arranged on one side, close to the valve body assembly (10), of the fixing frame (31), the sealing element (32) is provided with a plurality of through holes (322), the through holes (322) correspond to the through holes (111) in a one-to-one manner, and the ribs (321) are arranged around the orifices of the through holes (322).

3. The multi-way valve according to claim 2, wherein the valve body assembly (10) comprises a valve body (11) and a stop member (13), the stop member (13) being disposed on the valve body (11), the stop member (13) being disposed at both ends of the sealing unit (30) and abutting against the sealing unit (30) as the sealing unit (30) is mounted to the valve body (11).

4. The multi-way valve according to claim 3, wherein the fixing frame (31) is provided with chamfers (311) at both ends thereof adjacent to the retainer (13), and the chamfers (311) are inclined toward the valve body (11).

5. The multi-way valve according to claim 2, wherein the sealing element (32) is connected to the holder (31) by any one of clamping, gluing and vulcanizing.

6. The multi-way valve according to claim 3, wherein a connecting plate (12) is arranged on the outer wall surface of the valve body (11) on the side close to the circulation port (111), a plurality of ports (121) which are communicated with the circulation port (111) in a one-to-one correspondence are formed in the connecting plate (12), and the end surfaces of the ports, far away from the circulation port (111), of the plurality of ports (121) are all located on the same plane.

7. The multi-way valve according to claim 6, wherein the cartridge assembly (20) comprises a cartridge body (21),

the outer wall surface of the valve core body (21) is provided with a conducting part (211), and the conducting part (211) can be communicated with at least one circulation hole (111) so that the circulation hole (111) can be communicated with the adjacent circulation hole (111) through the conducting part (211).

8. The multi-way valve according to claim 7, wherein the number of flow ports (111) is seven, namely a first flow port (1111), a second flow port (1112), a third flow port (1113), a fourth flow port (1114), a fifth flow port (1115), a sixth flow port (1116) and a seventh flow port (1117), wherein the first flow port (1111), the second flow port (1112) and the third flow port (1113) are located in a first layer and extend in a first direction, wherein the fourth flow port (1114), the fifth flow port (1115), the sixth flow port (1116) and the seventh flow port (1117) are located in a second layer and extend in a second direction, and wherein the first direction and the second direction are parallel to each other;

the conduction part (211) comprises a first conduction part (2111) and a second conduction part (2112), the first conduction part (2111) extends along the axial direction of the valve core body (21), and the first conduction part (2111) can be communicated with any two adjacent flow ports (111) in the first layer and the second layer;

the second conduction part (2112) extends along the circumferential direction of the valve core body (21), and the second conduction part (2112) can be communicated with any two adjacent flow holes (111) in the first layer or the second layer;

the outer wall surface of the valve core body (21) is further provided with a blocking portion (212), the blocking portion (212) extends along the circumferential direction of the valve core body (21), a blocking piece (2121) is arranged inside the blocking portion (212), and the blocking piece (2121) can block circulation between any two adjacent circulation holes (111) in the valve body (11).

9. The multi-way valve according to claim 8, wherein the number of the first conduction portion (2111), the second conduction portion (2112) and the blocking portion (212) provided on the spool body (21) is at least two, respectively, and the multi-way valve includes at least three operation modes:

a first operating mode: the first communication port (1111) and the fourth communication port (1114) are communicated through the first conduction part (2111), the second communication port (1112) and the third communication port (1113), the fifth communication port (1115) and the sixth communication port (1116) are respectively communicated through two different second conduction parts (2112), the blocking part (212) blocks the seventh communication port (1117), and the seventh communication port (1117) is blocked from being communicated with any other communication port (111);

a second working mode: the first communication port (1111) and the fourth communication port (1114), the second communication port (1112) and the fifth communication port (1115) are communicated through two different first conduction parts (2111), the sixth communication port (1116) and the seventh communication port (1117) are communicated through the second conduction part (2112), the blocking part (212) blocks the third communication port (1113), and the third communication port (1113) is blocked from being communicated with any other communication port (111);

the third working mode is as follows: the first circulation port (1111) and the second circulation port (1112), the fourth circulation port (1114) and the fifth circulation port (1115), the sixth circulation port (1116) and the seventh circulation port (1117) are respectively communicated through three different second conduction parts (2112), and the blocking part (212) blocks the third circulation port (1113) and blocks the third circulation port (1113) from being communicated with any other circulation port (111).

10. The multi-way valve according to claim 1, further comprising a support assembly (40), wherein the support assembly (40) is interposed between the valve body assembly (10) and the valve core assembly (20) and contacts a side of the valve core assembly (20) away from the flow opening (111) to support the valve core assembly (20).

11. A thermal management system comprising a multi-way valve according to any of claims 1 to 10.