CN116045030A - Multi-way valve - Google Patents

Abstract

The invention discloses a multi-way valve which is arranged on a heat management water plate and comprises a valve casing, a valve core and a sealing gasket, wherein a valve cavity and a first opening communicated with the valve cavity are arranged in the valve casing, the valve casing is fixedly connected with the heat management water plate, the opening side faces the heat management water plate, the valve core is rotatably arranged in the valve cavity, the sealing gasket is arranged at the first opening, a plurality of flow passages which are not communicated with each other are arranged in the valve core, the flow passages are communicated with the outside at one side of the valve core facing the sealing gasket, a plurality of valve ports which can be communicated with the flow passages are arranged on the sealing gasket, the valve core can be driven to rotate among multiple rotation positions, and each flow passage can be communicated with at least two valve ports when being positioned at each rotation position. The flow passage opening is arranged at the bottom end of the valve core, the original valve seat is canceled, and at least two sealing elements are used for sealing the flow passage, only one sealing gasket is used for sealing the flow passage, so that the sealing structure is simplified, the leakage point of the multi-way valve is greatly reduced while the materials are saved, and the risk of internal leakage of the multi-way valve is effectively avoided.

Description

Multi-way valve

Technical Field

The invention relates to the technical field of control valves, in particular to a multi-way valve.

Background

With the continuous development of new energy automobiles, the whole thermal management loop of the new energy automobiles is huge and complex, the control requirement and the control precision of the whole fluid loop are higher and higher, and various multi-way valve schemes are presented in the market in face of the on-off control problem of a plurality of fluid loops.

Currently, multi-way valves on the market are mainly divided into the following two categories:

one type is a rotary pillar type multi-way valve, in which a spool is cylindrical, and a mode of forming a flow passage on a cylindrical side of the spool is adopted, such as a multi-way valve shown in fig. 1, which is mainly composed of a first gasket 200, a first valve housing 210, a first sealing ring 220, a first spool 230, a first O-ring 240, and a first valve cover 250, and another multi-way valve shown in fig. 2, which is mainly composed of a second valve cover 300, a second spool 310, a support ring 320, a second O-ring 330, a second valve housing 340, a second gasket 350, and a first sealing member 360. It is obvious that in this mode the cylindrical side of the multi-way valve housing also needs to be correspondingly provided with a flow passage, which leads to an increased volume of the multi-way valve, and the valve housing and the valve core and the valve housing and the heat management water plate are both sealed by the provision of a sealing element, which greatly increases the risk of leakage of the multi-way valve.

The second type is a rotary disc type multi-way valve, in which a valve core is disc-shaped, such as the multi-way valve shown in fig. 3, and is mainly composed of a valve seat 400, a second sealing member 410, a third valve core 420, a third valve cover 430, and a driver 440. Rotary disc type multiway valves are usually provided with valve cores which penetrate or not penetrate up and down, and valve seats, so at least 2-3 sets of sealing elements are required to be arranged for sealing, namely sealing elements are required to be arranged between the valve cores and valve covers (in the case that the valve cores penetrate through the valve covers), between the valve cores and the valve seats and between the valve seats and the heat management water plates.

Therefore, most of the multi-way valves in the current market are required to be provided with a large number of sealing elements for sealing, so that the cost is high, and the installation is time-consuming and labor-consuming; meanwhile, a plurality of sealing elements are arranged, and the whole multi-way valve can be invalid due to the failure of one sealing element in the later use process, namely, the complex sealing system formed by the plurality of sealing elements increases the risk of the multi-way valve to be invalid or leak.

Therefore, in combination with the above-mentioned technical problems, new innovations are necessary.

Disclosure of Invention

The invention aims to solve the defects in the prior art, and provides a novel multi-way valve, wherein a runner port is arranged at the bottom end of a valve core and the runner does not penetrate through the top end of the valve core, an original valve seat and at least two sealing pieces for sealing the inside and the outside of the runner are omitted, and a sealing gasket is arranged between the valve core and a heat management water plate for sealing the runner, so that the sealing structure of the multi-way valve is simplified, the material is saved, the leakage point of the multi-way valve is greatly reduced, and the risk of internal leakage of the traditional multi-way valve is effectively avoided. The specific scheme is as follows:

the utility model provides a multiport valve, its installs on the thermal management water board, multiport valve includes valve casing, case and sealing pad, have the valve pocket in the valve casing, one side of valve casing be provided with the first opening of valve pocket intercommunication, the valve casing with thermal management water board fixed connection, the open side of valve casing is towards the thermal management water board, the rotatable setting of case is in the valve pocket, sealing pad sets up first opening part, the multiport valve with seal between the thermal management water board is sealed through the sealing pad, be provided with a plurality of runners that do not communicate each other in the case, the runner is in the case orientation one side of sealing pad communicates with the outside, be provided with a plurality of can with the valve port of runner intercommunication on the sealing pad, the case can be driven and rotate in a plurality of transposition, just the case is located every transposition, every runner can be with two at least the valve port intercommunication.

Further, the rotary disc type multi-way valve is characterized in that the rotary disc type multi-way valve is a rotary disc type multi-way valve, the main body of the valve core is disc-shaped, the rotating shaft of the valve core is perpendicular to the sealing gasket, the flow channel is provided with an inlet and an outlet, and the inlet and the outlet are communicated with the outside on the end face of the main body, facing the same side of the sealing gasket.

Further, the sealing gasket comprises a sealing layer and a lubricating layer, wherein the lubricating layer is arranged on one side of the sealing layer, and when the valve casing is fixedly connected with the heat management water plate, the sealing layer is abutted to the heat management water plate, and the lubricating layer is abutted to the valve core.

Further, a limiting structure capable of limiting the rotation of the valve core is arranged between the valve core and the valve shell.

Further, the limit structure comprises a first limit protrusion and a second limit protrusion, the first limit protrusion is arranged on one side of the valve core, which is away from the sealing gasket, the second limit protrusion is arranged on the inner wall of the valve cavity, which corresponds to the first limit protrusion, and the second limit protrusion can limit the first limit protrusion in the rotation direction of the valve core.

Further, a rotating shaft structure is arranged on one side, far away from the sealing gasket, of the valve core, the rotating shaft structure and the valve core are coaxially arranged, the rotating shaft structure penetrates through the valve housing, and the rotating shaft structure can be driven by the driving component to drive the valve core to rotate.

Further, a sealing ring is arranged between the rotating shaft structure and the valve casing.

Further, the valve core is provided with an inner cavity, one side of the valve core, facing the sealing gasket, is provided with a second opening communicated with the inner cavity, a plurality of partition plates are arranged in the accommodating cavity, and the accommodating cavity is divided into a plurality of flow channels communicated with the second opening by the partition plates.

Further, a first baffle and a second baffle are arranged in the inner cavity, the first baffle and the second baffle are arranged on two sides of the axis of the valve core at parallel intervals, a third baffle and a fourth baffle are respectively arranged at two ends of the first baffle along the radial direction of the valve core, a fifth baffle and a sixth baffle are respectively arranged at two ends of the second baffle along the radial direction of the valve core, the third baffle, the fourth baffle, the fifth baffle and the sixth baffle are respectively connected with the inner wall of the circumference of the valve core, and the first baffle, the second baffle, the third baffle, the fourth baffle, the fifth baffle and the sixth baffle are respectively connected with the inner wall of the inner cavity far away from the second opening.

Further, an included angle between the third partition plate and the fifth partition plate and an included angle between the fourth partition plate and the sixth partition plate are respectively 60 degrees, and an included angle between the third partition plate and the fourth partition plate and an included angle between the fifth partition plate and the sixth partition plate are respectively 120 degrees.

Further, one side of the first partition plate, which is away from the second partition plate, is in an outwards protruding arc surface shape, and/or one side of the second partition plate, which is away from the first partition plate, is in an outwards protruding arc surface shape.

Compared with the prior art, the multi-way valve has at least one or more of the following beneficial effects:

(1) According to the multi-way valve, the runner port is arranged at the bottom end of the valve core, the runner does not penetrate through the top end of the valve core, the original valve seat and at least two sealing pieces for sealing the inside and the outside of the runner are omitted, and only one sealing gasket is arranged between the valve core and the heat management water plate for sealing the runner, so that the sealing structure of the multi-way valve is simplified, the material is saved, and meanwhile, the leakage point of the multi-way valve is greatly reduced; the valve core flow port is only arranged on the end face, the valve core is internally separated by the partition plate, the traditional internal sealing element is omitted, the risk of internal leakage of the traditional multi-way valve is effectively avoided, the weight of the product is reduced, the cost is reduced while the structure is simplified, the working hours required by installation can be reduced due to the use of the sealing element, the installation efficiency is effectively improved, and the risk of failure or leakage of the multi-way valve caused by the failure of the sealing element can be reduced;

(2) The multi-way valve adopts a plurality of layers of materials as a sealing gasket, an inner lubricating layer of the multi-way valve is contacted with a valve core to play a role in antifriction lubrication, and an outer sealing layer plays a role in sealing;

(3) The multi-way valve does not need to be provided with the flow passage opening on the valve casing, can reduce the volume of the multi-way valve, simultaneously omits a valve cover of the traditional multi-way valve, and realizes energy conservation, material reduction, weight reduction and cost reduction.

Drawings

FIGS. 1 to 3 are schematic views of explosion structures of three conventional multi-way valves, respectively;

FIG. 4 is a schematic diagram illustrating an installation state of a multiway valve provided in an embodiment of the present application on a thermal management water plate;

fig. 5 is a schematic perspective view of a multi-way valve according to an embodiment of the present disclosure;

FIG. 6 is a schematic diagram of an explosion structure of a multi-way valve according to an embodiment of the present disclosure;

fig. 7 is a schematic perspective view of a valve housing according to an embodiment of the present disclosure;

fig. 8 is a schematic perspective view of a valve core according to an embodiment of the present disclosure;

fig. 9 is a schematic perspective view of a multi-way valve according to an embodiment of the present disclosure in a bottom view when the multi-way valve is in a mode one state;

FIG. 10 is a schematic cross-sectional view of a multi-way valve according to an embodiment of the present disclosure in a top view in a mode one state;

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

fig. 12 is a schematic cross-sectional structure diagram of a multiway valve provided in an embodiment of the present application in a top view direction in a three-mode state.

Wherein, 1-multiport valve, 11-valve housing, 111-valve cavity, 112-first opening, 113-second limit protrusion, 114-fixed ear, 1141-fixed hole, 115-stiffener, 116-through hole, 117-circular collar, 12-valve core, 120-spindle structure, 1201-limit collar structure, 1202-tooth, 121-first limit protrusion, 122-first partition, 1221-first arc plate, 123-second partition, 1231-second arc plate, 124-third partition, 125-fourth partition, 126-fifth partition, 127-sixth partition, 128-first flow channel, 129-second flow channel, 130-third flow channel, 13-gasket, 131-first valve port, 132-second port, 133-third port, 134-fourth port, 135-fifth port, 136-sixth port, 137-circular configuration, 14-sealing ring, 2-drive component, 100-thermal management water plate, 200-first gasket, 210-first valve housing, 220-first sealing ring, 230-first valve cartridge, 240-first O-ring, 250-first valve cap, 300-second valve cap, 310-second valve cartridge, 320-support ring, 330-second O-ring, 340-second valve housing, 350-second gasket, 360-first seal, 400-valve seat, 410-second seal, 420-third valve cartridge, 430-third valve cap, 440-actuator.

Detailed Description

In order to further describe the technical means and effects adopted for achieving the preset aim of the invention, the following detailed description is given below of the specific implementation, structure, characteristics and effects according to the invention with reference to the attached drawings and the preferred embodiments.

Examples

The present embodiment provides a multi-way valve 1 mounted on a heat management water plate 100. The multi-way valve 1 includes a valve housing 11, a valve core 12, and a gasket 13. As shown in fig. 4 to 7, the valve housing 11 has a valve cavity 111 therein, one side of the valve housing 11 is provided with a first opening 112 communicating with the valve cavity 111, the valve housing 11 is fixedly connected with the thermal water management plate 100, and the opening side of the valve housing 11 faces the thermal water management plate 100. The valve housing 11 is preferably cylindrical, and the valve chamber 111 therein is also preferably cylindrical, i.e. the first opening 112 is also preferably circular. The first opening 112 is provided at one end of the valve housing 11 in the axial direction. A plurality of fixing lugs 114 extend on the circumferential wall of the valve housing 11 near the opening side, and each fixing lug 114 is provided with a fixing hole 1141, as shown in fig. 4 or fig. 5, and when the valve housing 11 and the thermal management water plate 100 are installed, the valve housing 11 can be fixedly connected with each other through the fixing holes 1141 by using a fastener such as a screw. It should be noted that, the thermal management water plate 100 is a conventional product, and the specific structure thereof is not an important point of protection in the present application, so the specific structure of the thermal management water plate 100 is not described in detail in the present embodiment, which is merely used for schematically showing the installation manner and the installation position of the multi-way valve 1. In addition, a plurality of reinforcing ribs 115 may be provided on the circumferential wall of the valve housing 11 to enhance the strength of the fixing lugs 114, thereby ensuring the stability of the fixed connection between the valve housing 11 and the thermal management water plate 100.

The valve core 12 is rotatably disposed in the valve cavity 111, and the gasket 13 is disposed at the first opening 112, that is, when the multi-way valve 1 is mounted on the heat management water plate 100, the valve housing 11 is fixedly connected to the heat management water plate 100, and the gasket 13 is disposed between the heat management water plate 100 and the valve core 12. A plurality of flow passages which are not communicated with each other are arranged in the valve core 12, and the flow passages are communicated with the outside of the valve core 12 at one side of the valve core 12 facing the sealing gasket 13. The sealing gasket 13 is provided with a plurality of valve ports capable of being communicated with the flow passages, the valve core 12 can be driven to rotate among a plurality of indexes, and when the valve core 12 is positioned at each index, each flow passage can be communicated with at least two valve ports. The multi-way valve 1 of this embodiment is preferably a rotary disc type multi-way valve, that is, the main body of the valve core 12 is disc-shaped, as shown in fig. 6, its size matches with the size of the valve cavity 111, and when it is disposed in the valve cavity 111, the valve core 12 is disposed coaxially with the valve housing 11, that is, the rotation axis of the valve core 12 is perpendicular to the sealing pad 13. The flow passage has an inlet and an outlet which communicate with the outside on the same side end face of the main body toward the gasket 13. A rotating shaft structure 120 is disposed on a side of the valve core 12 away from the sealing pad 13, and the rotating shaft structure 120 is disposed coaxially with the valve core 12. The rotating shaft structure 120 penetrates through the valve housing 11, that is, a through hole 116 is formed in the valve housing 11 corresponding to the rotating shaft structure 120, and the rotating shaft structure 120 penetrates through the valve housing 11 through the through hole. In order to ensure the tightness of the valve housing 11, a sealing ring 14 is preferably disposed between the rotating shaft structure 120 and the valve housing 11, for example, a limiting convex ring structure 1201 may be disposed on the outer wall of the rotating shaft structure 120, and a stop surface is further formed on the circumferential wall of the rotating shaft structure 120, and when assembled, the sealing ring 14 is sleeved on the rotating shaft structure 120, and the stop surface may tightly abut the sealing ring 14 against the inner wall of the valve housing 11, thereby realizing sealing. As shown in fig. 6, a preferred embodiment is schematically shown, the limiting collar structure 1201 is disposed at a connection portion between the rotary shaft structure 120 and the valve core 12, a circular collar 117 is disposed at a position corresponding to the rotary shaft structure 120 on an inner wall of the valve housing 11, a groove is formed in the circular collar 117, the through hole 116 is disposed at a bottom of the groove and is communicated with the groove, a size of the groove is matched with a size of the limiting collar structure 1201, and a size of the groove is larger than a size of the through hole 116, as shown in fig. 7. When assembling, the spacing convex ring structure 1201 is located in the groove, the stop surface tightly abuts the sealing ring 14 at the groove bottom of the groove to realize sealing, and the inner wall of the groove can limit the spacing convex ring structure 1201, so as to ensure that the valve core 12 can rotate more stably.

Preferably, the end of the shaft structure 120 is in a gear shape 1202, and the length direction of the gear 1202 is consistent with the axial direction of the shaft structure 120, so as to ensure that the shaft structure can be in transmission connection with the driving component 2 after the assembly is completed, thereby driving the valve core 12 to rotate under the driving of the driving component 2. The driving component 2 may be, for example, an actuator, and a driving spindle of the actuator is sleeved on the rotating shaft structure 120 to drive the valve core 12 to rotate. It should be noted that, the actuator is an existing product, and the specific structure thereof is not the important point of protection in the present application, so the specific structure of the actuator is not described in detail in this embodiment. Of course, the driving part 2 is not limited to one type of actuator, and may be any other driving structure.

A limit structure capable of limiting the rotation of the valve element 12 is provided between the valve element 12 and the valve housing 11. The limiting structure preferably includes a first limiting protrusion 121 and a second limiting protrusion 113, and the first limiting protrusion 121 is disposed on a side of the valve core 12 away from the sealing gasket 13, as shown in fig. 6, and the second limiting protrusion 113 is disposed on an inner wall corresponding to the first limiting protrusion 121 in the valve cavity 111, as shown in fig. 7. Along the circumferencial direction of case 12, one side of first spacing protruding 121 can with one side butt of second spacing protruding 113 behind the case 12 rotates certain angle, the opposite side of first spacing protruding 121 can with the opposite side butt of second spacing protruding 113, and then realize second spacing protruding 113 is in the circumferencial direction of case 12 is right first spacing protruding 121 carries out spacingly, guarantees case 12 can only rotate in the angle range of predetermineeing, can prevent its excessive rotation, simultaneously can also make things convenient for the executor to seek the position.

The gasket 13 is made of a multi-layer material and comprises a sealing layer and a lubricating layer, wherein the lubricating layer is arranged on one side of the sealing layer. The sealing layer may be made of EPDM, and the lubricating layer may be made of PTFE. When the valve housing 11 is fixedly connected with the thermal management water plate 100, the sealing layer is abutted against the thermal management water plate 100, and the lubrication layer is abutted against the valve core 12. Preferably, when the sealing gasket 13 is disposed at the first opening 112, the sealing gasket 13 is slightly higher than the first opening 112, so that when the valve housing 11 is fixedly connected with the thermal management water plate 100, the sealing layer is abutted with the thermal management water plate 100 more tightly, and sealing is achieved.

The valve core 12 is provided with an inner cavity, a second opening communicated with the inner cavity is formed in one side, facing the sealing pad 13, of the valve core 12, a plurality of partition plates are arranged in the accommodating cavity, and the accommodating cavity is divided into a plurality of flow channels communicated with the second opening by the partition plates. Taking a six-way valve as an example, the following is specific:

the inner cavity is provided with a first partition plate 122 and a second partition plate 123, the first partition plate 122 and the second partition plate 123 are arranged on two sides of the axis of the valve core 12 at parallel intervals, two ends of the first partition plate 122 extend along the radial direction of the valve core 12 respectively to form a third partition plate 124 and a fourth partition plate 125, two ends of the second partition plate 123 extend along the radial direction of the valve core 12 respectively to form a fifth partition plate 126 and a sixth partition plate 127, that is, planes of the third partition plate 124, the fourth partition plate 125, the fifth partition plate 126 and the sixth partition plate 127 respectively pass through the rotating shaft of the valve core 12. The third partition plate 124, the fourth partition plate 125, the fifth partition plate 126 and the sixth partition plate 127 are respectively connected to the circumferential inner wall of the valve core 12, and the first partition plate 122, the second partition plate 123, the third partition plate 124, the fourth partition plate 125, the fifth partition plate 126 and the sixth partition plate 127 are respectively connected to the inner wall of the inner cavity far from the second opening, so as to divide the inner cavity into three chambers as shown in fig. 8, and define, as flow passages in the valve core 12, a first flow passage 128, a second flow passage 129 and a third flow passage 130, respectively. Further, the included angle between the third partition 124 and the fifth partition 126 and the included angle between the fourth partition 125 and the sixth partition 127 are respectively 60 °, and the included angle between the third partition 124 and the fourth partition 125 and the included angle between the fifth partition 126 and the sixth partition 127 are respectively 120 °. Correspondingly, six valve ports with the same size and dimension and in a fan shape are arranged on the sealing gasket 13, which are close to the edge, along the circumferential direction at equal angles, and then a circular structure 137 is formed at the middle position of the sealing gasket 13, and the size of the circular structure 137 is required to ensure that the circular structure 137 can shield the first partition plate 122 and the second partition plate 123, preferably can just shield the first partition plate 122 and the second partition plate 123 when the sealing gasket 13 is arranged on one side of the valve core 12. And the opening portions of the first flow channel 128, the second flow channel 129 and the third flow channel 130 which are not shielded by the circular structure are the inlets or outlets of the flow channels.

In further embodiments, a side of the first partition 122 facing away from the second partition 123 is in an outwardly convex arc shape, and/or a side of the second partition 123 facing away from the first partition 122 is in an outwardly convex arc shape. As shown in fig. 8, an arc plate is schematically shown on a side of the first partition 122 facing away from the second partition 123, which is defined as a first arc plate 1221, and another arc plate is shown on a side of the second partition 123 facing away from the first partition 122, which is defined as a second arc plate 1231. The two ends of the first arc-shaped plate 1221 are respectively connected with the two ends of the first partition 122, the two ends of the second arc-shaped plate 1231 are respectively connected with the two ends of the second partition 123, and the first arc-shaped plate 1221 and the second arc-shaped plate 1231 are respectively connected with the inner wall of the inner cavity far away from the second opening. The first curved plate 1221 and the second curved plate 1231 are not larger than the circular structure 137, i.e. when the gasket 13 is disposed on the side of the valve core 12, the circular structure 137 is also capable of shielding the first curved plate 1221 and the second curved plate 1231, preferably just shielding the first curved plate 1221 and the second curved plate 1231. It should be noted that, the above is only to better illustrate the technical solution, so the first arc-shaped plate 1221 and the second arc-shaped plate 1231 are defined, but in the specific implementation, the first arc-shaped plate 1221 or the second arc-shaped plate 1231 may be only one side wall of the corresponding partition plate. The convex arc surface shape of the first partition 122 or the second partition 123 may increase the contact area between the valve core 12 and the sealing pad 13, that is, the circular structure 137, so as to ensure that the valve core 12 rotates on the sealing pad 13 more smoothly and stably. In addition, in order to further ensure that the sealing pad 13 is not caused to rotate when the valve core 12 rotates, an anti-rotation structure may be additionally arranged between the sealing pad 13 and the valve housing 11, for example, an anti-rotation groove is arranged at a position, corresponding to the sealing pad 13, of the inner wall of the valve housing 11, and a limit protrusion matched with the anti-rotation groove is arranged on the circumferential outer wall of the sealing pad 13.

The working principle of the six-way valve is further described with reference to fig. 9 to 12, specifically as follows:

six ports on the gasket 13 are sequentially defined as a first port 131, a second port 132, a third port 133, a fourth port 134, a fifth port 135 and a sixth port 136, as shown in fig. 9. The multi-way valve 1 can be switched among three working modes by driving the valve core 12 to rotate by a specific angle.

For example, assuming that the valve body 12 is rotated to a mode-one position as shown in fig. 9 and 10, the first flow passage 128 communicates with the first valve port 131 and the second valve port 132, and fluid flows through the second valve port 132, through the first flow passage 128, and then flows out of the first valve port 131; the second flow passage 129 communicates with the third valve port 133 and the sixth valve port 136, and fluid flows out of the third valve port 133 through the second flow passage 129 through the sixth valve port 136; the third flow passage 130 communicates with the fourth port 134 and the fifth port 135, and fluid flows out of the fifth port 135 through the fourth port 134 via the third flow passage 130.

When the valve core 12 rotates clockwise by 60 ° to the position shown in fig. 11, defining this position as a mode two position, the first flow passage 128 communicates with the first valve port 131 and the sixth valve port 136, and fluid flows out from the first valve port 131 through the sixth valve port 136 via the first flow passage 128; the second flow passage 129 communicates with the second valve port 132 and the fifth valve port 135, and fluid flows out of the fifth valve port 135 through the second flow passage 129 via the second valve port 132; the third flow passage 130 communicates with the fourth valve port 134 and the third valve port 133, and fluid flows out of the third valve port 133 through the third flow passage 130 via the fourth valve port 134.

When the valve core 12 rotates clockwise for 60 ° to the position shown in fig. 12 again, defining this position as a mode three position, the first flow passage 128 communicates with the sixth valve port 136 and the fifth valve port 135, and fluid flows out from the fifth valve port 135 through the sixth valve port 136 via the first flow passage 128; the second flow channel 129 communicates with the first valve port 131 and the fourth valve port 134, and fluid flows out of the first valve port 131 through the second flow channel 129 via the fourth valve port 134; the third flow passage 130 communicates with the third valve port 133 and the second valve port 132, and fluid flows out of the third valve port 133 through the third flow passage 130 via the second valve port 132.

In this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a list of elements is included, and may include other elements not expressly listed.

In this document, terms such as front, rear, upper, lower, etc. are defined with respect to the positions of the components in the drawings and with respect to each other, for clarity and convenience in expressing the technical solution. It should be understood that the use of such orientation terms should not limit the scope of the protection sought herein.

The embodiments described above and features of the embodiments herein may be combined with each other without conflict.

The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.

Claims (11)

1. The utility model provides a multiway valve, its installs on thermal management water board (100), its characterized in that, multiway valve (1) include valve casing (11), case (12) and sealed pad (13), have valve pocket (111) in valve casing (11), one side of valve casing (11) be provided with first opening (112) of valve pocket (111) intercommunication, valve casing (11) with thermal management water board (100) fixed connection, the opening side of valve casing (11) is towards thermal management water board (100), case (12) rotatable set up in valve pocket (111), sealed pad (13) set up first opening (112) department, the multiway valve with thermal management water board (100) between seal pad (13) seal, be provided with a plurality of each other not communicating runner in case (12), runner are in case (12) orientation one side and outside intercommunication of seal (13), seal pad (12) rotatable set up in case (12) are provided with a plurality of valve openings can be rotated with a plurality of valve openings (12) and every and can be located each one and be rotated between the intercommunication case (12).

2. The multiway valve according to claim 1, characterized in that it is a rotary disc multiway valve, the body of the valve core (12) is disc-shaped, the rotation axis of the valve core (12) is perpendicular to the gasket (13), the flow channel has an inlet and an outlet, and the inlet and the outlet are communicated with the outside on the same side end face of the body facing the gasket (13).

3. The multiway valve according to claim 1, wherein the gasket (13) comprises a sealing layer and a lubricating layer, the lubricating layer being arranged on one side of the sealing layer, the sealing layer being in abutment with the thermal management water plate (100) and the lubricating layer being in abutment with the valve core (12) when the valve housing (11) is fixedly connected with the thermal management water plate (100).

4. The multi-way valve according to claim 1, characterized in that a limit structure capable of limiting the rotation of the valve core (12) is provided between the valve core (12) and the valve housing (11).

5. The multi-way valve according to claim 4, wherein the limiting structure comprises a first limiting protrusion (121) and a second limiting protrusion (113), the first limiting protrusion (121) is disposed on one side of the valve core (12) facing away from the sealing gasket (13), the second limiting protrusion (113) is disposed on an inner wall of the valve cavity (111) corresponding to the first limiting protrusion (121), and the second limiting protrusion (113) can limit the first limiting protrusion (121) in a rotation direction of the valve core (12).

6. The multi-way valve according to claim 1, characterized in that a rotating shaft structure (120) is arranged on one side of the valve core (12) away from the sealing gasket (13), the rotating shaft structure (120) and the valve core (12) are coaxially arranged, the rotating shaft structure (120) penetrates through the valve housing (11), and the rotating shaft structure (120) can be driven by a driving component (2) to drive the valve core (12) to rotate.

7. A multi-way valve according to claim 6, characterized in that a sealing ring (14) is arranged between the spindle structure (120) and the valve housing (11).

8. The multi-way valve according to claim 1, wherein the valve core (12) has an inner cavity, a side of the valve core (12) facing the sealing gasket (13) has a second opening communicated with the inner cavity, a plurality of partition plates are arranged in the accommodating cavity, and the accommodating cavity is divided into a plurality of flow passages communicated with the second opening by the partition plates.

9. The multi-way valve according to claim 8, wherein a first partition plate (122) and a second partition plate (123) are disposed in the inner cavity, the first partition plate (122) and the second partition plate (123) are disposed at two sides of the axis of the valve core (12) at parallel intervals, two ends of the first partition plate (122) are respectively extended with a third partition plate (124) and a fourth partition plate (125) along the radial direction of the valve core (12), two ends of the second partition plate (123) are respectively extended with a fifth partition plate (126) and a sixth partition plate (127) along the radial direction of the valve core (12), the third partition plate (124), the fourth partition plate (125), the fifth partition plate (126) and the sixth partition plate (127) are respectively connected with the circumferential inner wall of the valve core (12), and the first partition plate (122), the second partition plate (123), the third partition plate (124), the fourth partition plate (125), the fifth partition plate (126) and the sixth partition plate (127) are respectively connected with the inner wall of the inner cavity far from the second opening.

10. The multiway valve of claim 9, wherein the angle between the third (124) and fifth (126) and the angle between the fourth (125) and sixth (127) baffles is 60 °, and the angle between the third (124) and fourth (125) baffles and the angle between the fifth (126) and sixth (127) baffles is 120 °, respectively.

11. The multiway valve according to claim 9, wherein the side of the first partition (122) facing away from the second partition (123) is in the form of an outwardly convex arc, and/or

The side of the second partition plate (123) away from the first partition plate (122) is in an outwards protruding cambered surface shape.

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