CN118049507A

CN118049507A - Multi-channel valve, thermal management integrated module and vehicle

Info

Publication number: CN118049507A
Application number: CN202211402129.6A
Authority: CN
Inventors: 林建新; 方建忠; 吴飞
Original assignee: Guangdong Meizhi Compressor Co Ltd; Anhui Welling Auto Parts Co Ltd
Current assignee: Guangdong Meizhi Compressor Co Ltd; Anhui Welling Auto Parts Co Ltd
Priority date: 2022-11-09
Filing date: 2022-11-09
Publication date: 2024-05-17

Abstract

The invention discloses a multi-channel valve, a thermal management integrated module and a vehicle, wherein the multi-channel valve comprises: the shell is provided with a valve cavity and a plurality of circulating channels, each circulating channel is provided with an inner port communicated with the valve cavity, and the plurality of inner ports are arranged at intervals along the circumferential direction of the valve cavity; the valve core is rotatably arranged in the valve cavity and is provided with at least one switching channel, the switching channel is communicated with two inner ports, and the valve core rotates to enable the switching channel to be communicated with different inner ports in a switching way; and the first sealing piece is arranged in the valve cavity and surrounds the periphery of the valve core, a plurality of first avoidance through holes are formed in the first sealing piece at intervals along the circumferential direction, the first avoidance through holes are in one-to-one correspondence and are communicated with the inner ends, and the first sealing piece is respectively contacted with the shell and the valve core. The multi-channel valve can realize the switching of a plurality of flow paths and a plurality of modes, and can improve the sealing performance among the channels of the multi-channel valve.

Description

Multi-channel valve, thermal management integrated module and vehicle

Technical Field

The invention relates to the technical field of switching valves, in particular to a multichannel valve, a thermal management integrated module and a vehicle.

Background

In an actual application scene of a new energy vehicle, a thermal management system of the new energy vehicle needs to perform temperature adjustment management on management objects such as a battery pack, a power assembly, a control module, a passenger cabin and the like of the new energy vehicle. Based on the requirements of a plurality of management objects requiring thermal management, if the fluid valve device is used for controlling each thermal management object separately, the whole thermal management system is too complex, the number of parts is large, the occupied space is large, and in addition, the reliability of the thermal management system is reduced. Therefore, the thermal management system tends to be integrated, which requires the use of multi-channel valves to switch the flow paths. How to design a multi-channel valve, so that one multi-channel valve can cope with control of multiple flow paths and multiple modes of a system, and improve sealing performance among channels of the multi-channel valve is a technical problem to be improved at present.

Disclosure of Invention

The invention mainly aims to provide a multi-channel valve which can realize switching of a plurality of flow paths and a plurality of modes and can improve the sealing performance among all channels of the multi-channel valve.

To achieve the above object, the present invention provides a multi-channel valve comprising:

The shell is provided with a valve cavity and a plurality of circulation channels, each circulation channel is provided with an inner end communicated with the valve cavity, and the inner ends are arranged at intervals along the circumferential direction of the valve cavity;

the valve core is rotatably arranged in the valve cavity and is provided with at least one switching channel, the switching channels are communicated with two of the inner ports, and the valve core rotates to enable the switching channels to be communicated with different inner ports in a switching way; and

The first sealing piece is arranged in the valve cavity and surrounds the periphery of the valve core, a plurality of first avoidance through holes are formed in the first sealing piece at intervals along the circumferential direction, the first avoidance through holes are in one-to-one correspondence and are communicated with the inner ends, and the first sealing piece is respectively contacted with the shell and the valve core.

In one embodiment, at least one of the outer peripheral surface of the valve body and the inner peripheral surface of the first seal member is provided with a bead, and the valve body is in contact with the first seal member through the bead.

In one embodiment, the plurality of switching channels are provided, the plurality of switching channels include a first switching channel for communicating two adjacent inner ports and a second switching channel for communicating two non-adjacent inner ports, and the spool rotates to switch the first switching channel to communicate with different inner ports and/or the second switching channel to communicate with different inner ports.

In one embodiment, the valve core comprises a valve core body, wherein a diversion concave cavity which is sunken towards the center of the valve core body is formed in the outer peripheral surface of the valve core body, and the diversion concave cavity forms the first switching channel; the second switching channel comprises a diversion inner flow channel and two communication ports, the diversion inner flow channel is arranged in the valve core body, and the two communication ports are all positioned on the outer peripheral surface of the valve core body and are communicated through the diversion inner flow channel.

In one embodiment, the valve core further includes ribs disposed on an outer peripheral surface of the valve core body, the ribs surrounding a periphery of each of the flow guiding recessed cavities and a periphery of each of the communication ports, and the ribs being in contact with an inner peripheral surface of the first sealing member.

In one embodiment, the ribs include a first rib extending along an axial direction of the valve core, and a second rib extending along a circumferential direction of the valve core, the first rib is arranged between any two adjacent diversion cavities and between the adjacent diversion cavities and the communication ports, the second ribs are respectively arranged on two axial sides of the valve core, and the first ribs are intersected with the second ribs.

In one embodiment, the inner circumferential surface of the first sealing member is provided with a wear layer, and the wear layer is in contact with the valve core.

In one embodiment, the first sealing member includes a sealing member body surrounding the periphery of the valve core, and sealing ribs protruding from the outer peripheral surface of the sealing member body, the first avoiding through holes are formed in the sealing member body, the sealing ribs surround the periphery of each first avoiding through hole, and the sealing ribs are in contact with the housing.

In one embodiment, the sealing rib comprises a first rib extending along the axial direction of the sealing element body and a second rib extending along the circumferential direction of the sealing element body, the first rib is arranged between any two adjacent first avoidance through holes, the second ribs are respectively arranged on two axial sides of the sealing element body, and the first ribs are intersected with the second ribs.

In one embodiment, a plurality of first ribs are arranged between any two adjacent first avoidance through holes; and/or, a plurality of second ribs are respectively arranged on two axial sides of the sealing element body.

In one embodiment, the side, which is contacted with the shell, of the first rib is provided with an arc-shaped surface or a wavy curved surface; and/or the number of the groups of groups,

And one side of the second rib, which is in contact with the shell, is provided with an arc-shaped surface or a wavy curved surface.

In one embodiment, one of the inner peripheral surface of the housing and the outer peripheral surface of the first seal member is provided with a protrusion, and the other is provided with a groove in plug-fit with the protrusion.

In one embodiment, the inner peripheral surface of the housing is provided with a plurality of protrusions at intervals along the circumferential direction, each protrusion extends along the axial direction of the housing, the outer peripheral surface of the first sealing member is provided with a plurality of grooves at intervals along the circumferential direction, each groove extends along the axial direction of the first sealing member and is provided with a socket on the end surface of the first sealing member, and the protrusions are in one-to-one plug-in fit with the grooves.

In one embodiment, each of the flow channels further has an outer port penetrating through the same end face of the housing, and the multi-channel valve further includes a second sealing member, the second sealing member is disposed on the face, provided with the outer port, of the housing, the second sealing member is provided with a plurality of second avoidance through holes, and the second avoidance through holes are disposed in one-to-one correspondence with the outer ports and are communicated with the outer ports.

In one embodiment, the multi-channel valve is an even channel valve having an even number of valve ports.

The invention also proposes a thermal management integrated module comprising:

The flow collecting plate is internally provided with a plurality of flow channels for circulating media; and

The multi-channel valve is arranged on the confluence plate, a plurality of flow channels are communicated with a plurality of flow channels in a one-to-one correspondence manner, and the valve core rotates to control the flow channels to switch and communicate so that the thermal management integrated module can switch modes or flow channels.

The invention also proposes a vehicle comprising a thermal management integrated module as described above.

The multi-channel valve can realize the switching of a plurality of flow paths and a plurality of modes of the multi-channel valve only by controlling the valve core to rotate so as to enable the valve core to be communicated with different flow channels on the shell in a switching way, and the control mode is simpler. A first sealing piece is arranged between the shell and the valve core, and a plurality of first avoidance through holes are formed in the first sealing piece, so that an inner end of the shell and a switching channel of the valve core can be communicated through the first avoidance through holes so as to enable media to circulate; and the first sealing member contacts with the valve core and the shell respectively, so that the gap between the valve core and the shell can be sealed by the first sealing member in the rotating process of the valve core, leakage and failure of the multi-channel valve caused by leakage of media in a switching channel or a circulating channel from the gap are avoided, mixed flow in the media can be effectively avoided, loss of the regulating function of the multi-channel valve is avoided, and the performance reliability of the multi-channel valve is ensured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a multi-channel valve according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of the multi-channel valve of FIG. 1 from another perspective;

FIG. 3 is a schematic cross-sectional view of the multi-channel valve of FIG. 2 taken along line A-A (with the valve spool in an initial position);

FIG. 4 is a schematic diagram of the multi-channel valve of FIG. 3 after the valve element is rotated by a predetermined angle;

FIG. 5 is an exploded view of the multi-channel valve of FIG. 1;

FIG. 6 is a schematic view of the housing of the multi-channel valve of FIG. 5;

FIG. 7 is a schematic view of the housing of FIG. 6 from another perspective;

FIG. 8 is a schematic view of the housing of FIG. 6 from another perspective;

FIG. 9 is a schematic illustration of the configuration of the spool of the multi-channel valve of FIG. 5;

FIG. 10 is a schematic cross-sectional view of the valve cartridge of FIG. 9;

FIG. 11 is a schematic view of another embodiment of a valve cartridge;

FIG. 12 is a schematic cross-sectional view of the valve cartridge of FIG. 11;

FIG. 13 is a schematic view of the first seal of the multi-channel valve of FIG. 5;

FIG. 14 is a schematic view of the first seal of FIG. 13 from another perspective;

FIG. 15 is a schematic cross-sectional view of the first seal member of FIG. 14 taken along line B-B;

FIG. 16 is an enlarged partial schematic view of FIG. 15 at A;

FIG. 17 is an exploded view of an embodiment of a thermal management integrated module according to the present invention.

Reference numerals illustrate:

the achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present invention, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture, and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, if "and/or" and/or "are used throughout, the meaning includes three parallel schemes, for example," a and/or B "including a scheme, or B scheme, or a scheme where a and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.

The present invention proposes a multi-channel valve 100.

Referring to fig. 1 to 5, in an embodiment of the present invention, the multi-channel valve 100 includes a housing 10, a valve core 20, and a first sealing member 30. The housing 10 is provided with a valve chamber 101 and a plurality of flow channels 102, each flow channel 102 is provided with an inner port 102a communicated with the valve chamber 101, and the plurality of inner ports 102a are arranged at intervals along the circumferential direction of the valve chamber 101; the valve core 20 is rotatably arranged in the valve cavity 101, the valve core 20 is provided with at least one switching channel, the switching channel is communicated with two inner ports 102a, and the valve core 20 rotates to enable the switching channel to be communicated with different inner ports 102a in a switching way; the first sealing element 30 is arranged in the valve cavity 101 and surrounds the periphery of the valve core 20, a plurality of first avoidance through holes 301 are formed in the first sealing element 30 at intervals along the circumferential direction, the first avoidance through holes 301 are in one-to-one correspondence and communicated with the inner ports 102a, and the first sealing element 30 is respectively contacted with the shell 10 and the valve core 20.

Specifically, the casing 10 is hollow, and has a valve cavity 101 formed therein, and a plurality of flow channels 102 are arranged at intervals along the circumferential direction of the valve cavity 101, one end of each flow channel 102 penetrates through the inner wall surface of the casing 10 to form an inner port 102a communicating with the valve cavity 101, the other end of each flow channel 102 penetrates through the outer surface of the casing 10 to form an outer port 102b, and the flow channels 102 can communicate with an external pipe through the outer ports 102 b. The specific number of the flow channels 102 may be set according to actual needs. For example, in the present embodiment, the multi-channel valve 100 is provided with 12 flow channels 102. The shapes of the plurality of inner ports 102a may be the same or different, and the shapes of the plurality of outer ports 102b may be the same or different. The external conduit has a flowing medium therein, whereby the medium may flow in or out from the external port 102b of the flow channel 102 to effect a flow of the medium between the multi-channel valve 100 and the external conduit, wherein the medium may be water, antifreeze or other liquid, without specific limitation.

The valve core 20 is disposed in the valve cavity 101, the valve core 20 may be configured in a columnar shape, and the valve core 20 may rotate along its own axis within the valve cavity 101. The valve core 20 is provided with at least one switching channel, and the switching channel is used for communicating with two inner ports 102a of the plurality of flow channels 102, that is, one switching channel can communicate two flow channels 102 to form a medium flow channel. When the valve core 20 rotates, the switching channel also rotates along with the valve core 20, so that the switching channel can be communicated with different inner ports 102a in a switching way, and different medium flow channels are formed. Thus, as the valve core 20 rotates, the switching between different medium flow channels of the multi-channel valve 100 can be realized, so that the medium can enter the multi-channel valve 100 from different medium flow channels or flow out of the multi-channel valve 100, thereby realizing a plurality of different working modes of the multi-channel valve 100. Preferably, by adjusting the rotation angle of the valve core 20, switching between different flow passages of the multi-channel valve 100 and flow control can be achieved, thereby controlling the flow of the fluid medium in the external pipe.

The first seal 30 is mounted between the valve core 20 and the housing 10 to provide a sealing connection. The first sealing member 30 is disposed in an annular shape, and it should be noted that the first sealing member 30 may be configured as a closed annular structure with two ends connected, or may be configured as a non-closed annular structure with two ends close to each other but having a certain gap. Alternatively, in the present embodiment, the first seal 30 is configured in a non-closed annular configuration for manufacturing. The material of the first seal 30 is an elastic material. Preferably, the first sealing member 30 is made of a rubber material, for example, EPDM (Ethylene Propylene Diene tripolymer, ethylene propylene diene monomer) material may be used as the first sealing member 30, so that the first sealing member 30 has characteristics of high cost performance, excellent aging resistance, excellent chemical resistance, excellent insulation performance and wide application temperature range.

The multi-channel valve 100 of the present invention can realize the switching of multiple channels and modes of the multi-channel valve 100 by only controlling the rotation of the valve core 20 so as to switch the communication between the valve core 20 and different flow channels 102 on the housing 10, and the control mode is simpler. A first sealing element 30 is arranged between the shell 10 and the valve core 20, and a plurality of first avoidance through holes 301 are arranged on the first sealing element 30, so that an inner end 102a on the shell 10 and a switching channel on the valve core 20 can be communicated through the first avoidance through holes 301 so as to be convenient for medium circulation; and the first sealing element 30 contacts with the valve core 20 and the shell 10 respectively, so that in the rotating process of the valve core 20, the first sealing element 30 can seal a gap between the valve core 20 and the shell 10, leakage and failure of the multi-channel valve 100 caused by leakage of media in the switching channel or the circulating channel 102 from the gap are avoided, mixed flow in the media can be effectively avoided, loss of the adjusting function of the multi-channel valve 100 is avoided, and performance reliability of the multi-channel valve 100 is ensured.

In one of the embodiments, at least one of the outer circumferential surface of the valve body 20 and the inner circumferential surface of the first seal member 30 is provided with a bead 23, and the valve body 20 is in contact with the first seal member 30 through the bead 23. Specifically, the bead 23 may be provided on the outer peripheral surface of the valve body 20, and the valve body 20 may be in contact with the inner peripheral surface of the first seal 30 via the bead 23; or the first sealing member 30 is provided with a convex rib 23 on the inner peripheral surface, and the first sealing member 30 is contacted with the outer peripheral surface of the valve core 20 through the convex rib 23; alternatively, the outer peripheral surface of the valve body 20 and the inner peripheral surface of the first seal member 30 are provided with the beads 23, and the valve body 20 and the first seal member 30 are in contact with each other through the two beads 23.

In this embodiment, the contact area between the valve core 20 and the first sealing member 30 can be effectively reduced, and further the frictional resistance in the rotation process of the valve core 20 is reduced, so that the rotation of the valve core 20 is smoother, and the precise control of the rotation angle of the valve core 20 is facilitated, compared with the manner that the outer peripheral surface of the valve core 20 is in direct contact with the inner peripheral surface of the first sealing member 30 to form the surface-surface contact. Meanwhile, the frictional resistance between the valve core 20 and the first sealing element 30 in the scheme is relatively small, so that the problems of leakage and sealing failure caused by deformation and dislocation of the first sealing element 30 due to overlarge stress in the rotation process of the valve core 20 can be effectively avoided, and the sealing performance reliability of each channel of the multi-channel valve 100 can be further improved. Alternatively, the contact side of the bead 23 is provided in an arc-shaped surface, so that the contact area can be further reduced, and the frictional resistance can be reduced.

To enable the multi-channel valve 100 to achieve more channel mode switching, as shown in fig. 3, 9 and 10, in one embodiment, the switching channels are provided in plurality, and the plurality of switching channels includes a first switching channel 201 and a second switching channel 202, the first switching channel 201 is used to communicate two adjacent inner ports 102a, the second switching channel 202 is used to communicate two non-adjacent inner ports 102a, and the spool 20 is rotated to switch the first switching channel 201 to communicate with different inner ports 102a and/or the second switching channel 202 to communicate with different inner ports 102 a.

In this embodiment, the first switching channel 201 is used to communicate the two adjacent inner ports 102a, which is beneficial to realizing the communication of the two adjacent flow channels 102; the second switching channel 202 is used for communicating the non-adjacent two inner ports 102a, which is beneficial to realizing the communication of the non-adjacent two flow channels 102. Valve spool 20 rotates to switch first switching channel 201 to communicate with a different inner port 102a and/or second switching channel 202 to communicate with a different inner port 102a, such that multiple flow paths, multiple modes of switching, may be achieved by rotating valve spool 20 to allow multi-channel valve 100. For example, when spool 20 is rotated to the first position, first switching channel 201 communicates two adjacent inner ports 102a, while second switching channel 202 does not communicate two non-adjacent inner ports 102a to achieve the first flow path mode; when the spool 20 rotates to the second position, the second switching passage 202 communicates the non-adjacent two inner ports 102a, while the first switching passage 201 does not communicate the adjacent two inner ports 102a, to realize the second flow path mode; when spool 20 rotates to the third position, first switching channel 201 communicates two adjacent inner ports 102a and second switching channel 202 communicates two non-adjacent inner ports 102a to achieve the third flow path mode. In this way, the first switching channel 201 and the second switching channel 202 are respectively in switching communication with different inner ports 102a (i.e. the flow channels 102), so that the switchable modes of the multi-channel valve 100 can be further increased, and the cost and the control difficulty can be further reduced.

Alternatively, the first switching channels 201 are provided with N, the second switching channels 202 are provided with 1, and the inner ports 102a are provided with 2 (n+1), where N is an integer greater than or equal to 2. For example, in the present embodiment, the multi-channel valve 100 has 12 flow channels 102, and 12 corresponding inner ports 102a are provided, so that 5 first switching channels 201 and 1 second switching channels 202 can be provided in the valve core 20 to satisfy the switching of different flow channel modes. Of course, in other embodiments, the number of the first switching channels 201 and the second switching channels 202 may be adaptively adjusted according to the number of the flow channels 102.

Further, as shown in fig. 3 and 4, in an embodiment, a spacer 14 is formed between any two adjacent inner ports 102a, and in the initial position, each first switching channel 201 communicates with a group of two adjacent inner ports 102a correspondingly, and the second switching channel 202 communicates with two inner ports 102a separated by a group of two adjacent inner ports 102a; each of the first switching passage 201 and the second switching passage 202 is communicated with the inner port 102a adjacent to one of the spacers 14 after crossing the spacer 14, respectively, every time the spool 20 rotates by a predetermined angle. Wherein, the preset angle theta can be set according to actual needs, and optionally, the angle theta is more than or equal to 10 degrees and less than or equal to 30 degrees.

Further, as shown in fig. 9 to 12, in some embodiments, the spool 20 includes a spool body 21, and an outer peripheral surface of the spool body 21 is provided with a diversion recess recessed toward a center of the spool body 21, the diversion recess forming a first switching passage 201. In this way, the structure of the first switching passage 201 can be simplified, and the production and manufacture of the spool 20 can be facilitated. Optionally, the first switching channel 201 (i.e. the flow directing recess) is arranged in a semi-circular like configuration to reduce the medium flow resistance. The second switching passage 202 includes a diversion inner flow passage 202a and two communication ports 202b, the diversion inner flow passage 202a is provided in the valve core body 21, and the two communication ports 202b are both located on the outer peripheral surface of the valve core body 21 and are communicated through the diversion inner flow passage 202 a. Thus, the two communication ports 202b of the second switching passage 202 are spaced farther apart so as to communicate the non-adjacent two inner ports 102 a; meanwhile, the diversion inner flow passage 202a is arranged in the valve core body 21, so that the inner space of the valve core body 21 can be fully utilized. Optionally, the diversion inner flow passage 202a is provided in an arc-shaped flow passage to reduce the medium flow resistance.

As shown in fig. 11 and 12, in an embodiment, the valve core 20 further includes ribs 23 disposed on the outer peripheral surface of the valve core body 21, and the ribs 23 are around the periphery of each flow guiding cavity (i.e. the first switching channel 201) and the periphery of each communication port 202b, where the ribs 23 contact with the inner peripheral surface of the first seal member 30. In this embodiment, by disposing the ribs 23 on the outer peripheral surface of the valve core body 21, the peripheral edge of each flow guiding cavity and the peripheral edge of each communication port 202b are surrounded by the ribs 23, and by disposing the ribs 23, the medium is prevented from diffusing from the peripheral edge of the flow guiding cavity or the communication port 202b to the adjacent flow guiding cavity or the communication port 202b, so as to ensure the sealing reliability of the peripheral edge parts of each flow guiding cavity and each communication port 202 b. And through setting up protruding muscle 23 for case body 21 passes through protruding muscle 23 and first sealing member 30 contact, can reduce the frictional resistance between case 20 and the first sealing member 30, guarantees that case 20 rotates smoothly, can effectively avoid simultaneously that first sealing member 30 produces deformation, dislocation and then leads to revealing, sealing failure's problem owing to the atress is too big in case 20 rotation process, can further promote the sealing performance reliability of each passageway of multichannel valve 100.

In one embodiment, the ribs 23 include a first rib 231 extending along the axial direction of the valve core 20, and a second rib 232 extending along the circumferential direction of the valve core 20, the first rib 231 is disposed between any two adjacent diversion cavities and between the adjacent diversion cavities and the communication ports 202b, the second ribs 232 are disposed on two axial sides of the valve core 20, and the first rib 231 intersects with the second rib 232.

In this embodiment, the first ribs 231 and the second ribs 232 are cross-connected to form the grid-shaped ribs 23, so as to ensure that the periphery of each diversion cavity and the periphery of each communication port 202b can be surrounded by the ribs 23. Wherein, the separation is performed between any two adjacent diversion cavities through the first ribs 231, so as to avoid the mixed flow of the media in the two diversion cavities (i.e. the two first switching channels 201), and the separation is performed between the adjacent diversion cavities and the communication ports 202b through the first ribs 231, so as to avoid the mixed flow of the media leakage between the adjacent diversion cavities and the communication ports 202b, thereby avoiding the mixed flow of the media in the first switching channels 201 and the second switching channels 202. By providing the second bead 232, the medium is prevented from leaking outward in the axial direction of the spool 20. In order to further ensure the sealing reliability, optionally, a plurality of first ribs 231 are disposed between any two adjacent diversion cavities, a plurality of first ribs 231 are disposed between the adjacent diversion cavities and the communication ports 202b, and multiple blocking effects are achieved on leakage of the medium through the plurality of first ribs 231. Optionally, a plurality of second ribs 232 are respectively disposed on two axial sides of the valve core 20, so as to play a multiple blocking role on leakage of the medium through the second ribs 232.

In addition, since the valve core 20 is required to reciprocally rotate during the life cycle of the product in a normal operation state, the first sealing member 30 is worn for a long time, resulting in a failure of sealing, and in order to increase the service life of the first sealing member 30, in one embodiment, as shown in fig. 15, the inner circumferential surface of the first sealing member 30 is provided with a wear-resistant layer 34, and the wear-resistant layer 34 is in contact with the valve core 20. The material of the wear-resistant layer 34 is a material with a small friction coefficient and wear resistance, for example: the wear-resistant layer 34 may be made of a fluoroplastic film or a PTFE (polytetrafluoroethylene) material, so that the wear-resistant layer 34 has the effects of wear resistance and small friction coefficient, so that the wear of the valve core 20 on the first sealing element 30 in the rotation process is reduced, the friction force between the first sealing element 30 and the valve core 20 is reduced, the lubrication effect is achieved between the first sealing element 30 and the valve core 20, the service life of the first sealing element 30 is prolonged, and the torsion force of the valve core 20 is kept in a small range.

In some embodiments, the wear layer 34 is configured as a coating film, which may be a fluoroplastic film, such as a PTFE (polytetrafluoroethylene) type material, to provide the coating film with wear resistance, lubrication, etc., which is advantageous for improving its frictional wear properties.

Referring to fig. 3, 13 and 14, in one embodiment, the first sealing member 30 includes a sealing member body 31 surrounding the periphery of the valve core 20, and sealing ribs 32 protruding from the outer peripheral surface of the sealing member body 31, the first avoiding through holes 301 are disposed on the sealing member body 31, and the sealing ribs 32 surround the periphery of each first avoiding through hole 301, and the sealing ribs 32 are in contact with the housing 10.

In the present embodiment, by providing the sealing rib 32 on the outer peripheral surface of the seal body 31, the sealing rib 32 surrounds the periphery of each first avoidance hole 301, and when the first seal 30 is assembled to the housing 10, the sealing rib 32 can also surround the periphery of each inner port 102a of the housing 10. In this way, the sealing rib 32 can seal the gap between the peripheral edge of each first avoidance through hole 301 and the peripheral edge of the corresponding inner port 102a, so that the medium can be prevented from flowing in a mixed manner between two adjacent first avoidance through holes 301, and the medium can be prevented from flowing in a mixed manner between two adjacent inner ports 102a, and the sealing performance of each channel of the multi-way valve can be effectively improved. When the first seal 30 is assembled with the housing 10 and the valve body 20, the valve body 20 presses the first seal 30 against the inner peripheral surface of the housing 10, so that the seal rib 32 elastically presses against the inner peripheral surface of the housing 10. Thus, by providing the seal rib 32, the reaction force of the first seal 30 after compression can be increased, the compression resistance of the first seal 30 can be increased, and the problem of the decrease in sealing performance due to the occurrence of a seal gap can be prevented, thereby further increasing the reliability of sealing.

As shown in fig. 13 and 14, in one embodiment, the sealing rib 32 includes a first rib 321 extending along the axial direction of the sealing member body 31, and a second rib 322 extending along the circumferential direction of the sealing member body 31, where the first rib 321 is disposed between any two adjacent first avoidance holes 301, the second ribs 322 are disposed on two axial sides of the sealing member body 31, and the first ribs 321 intersect the second ribs 322.

In this embodiment, the first ribs 321 and the second ribs 322 are cross-connected to form the grid-shaped sealing ribs 32, so as to ensure that each first avoiding through hole 301 can be surrounded by the convex rib 23. Wherein, be equipped with first rib 321 between two arbitrary adjacent first avoidance through-holes 301, can block to take place the medium between two adjacent first avoidance through-holes 301 and reveal mixed flow through first rib 321, still can block to take place the medium between two adjacent inner ports 102a to reveal mixed flow through first rib 321. The second ribs 322 may block the leakage of medium axially outward from the first seal 30.

In one embodiment, a plurality of first ribs 321 are disposed between any two adjacent first avoidance holes 301. The plurality of first ribs 321 may be two, three, or more first ribs 321. The plurality of first ribs 321 can play a role in multiple blocking on leakage of the medium, so that the sealing performance is further improved. Optionally, the plurality of first ribs 321 between any two adjacent first avoidance holes 301 are arranged at intervals, and preferably, the gap between the adjacent first ribs 321 is greater than 1mm, so that the tightness of the first seal 30 is enhanced, and meanwhile, the elasticity of the first seal 30 is not affected.

In one embodiment, a plurality of second ribs 322 are provided on each of the two axial sides of the seal body 31. The plurality of second ribs 322 may be two, three, or more second ribs 322. The second ribs 322 can provide multiple barriers to leakage of the medium, so that the sealing performance is further improved. Optionally, a plurality of second ribs 322 disposed on the same side of the seal body 31 in the axial direction are disposed at intervals, and preferably, the gaps between adjacent second ribs 322 are greater than 1mm, so that the tightness of the first seal 30 is enhanced without affecting the elasticity of the first seal 30.

Further, the side of the first rib 321 contacted with the shell 10 is provided with an arc-shaped surface or a wave-shaped curved surface; and/or, the side of the second rib 322 contacting the housing 10 is provided with an arc-shaped surface or a wave-shaped curved surface. For example, in some embodiments, the surface of the first rib 321 contacting the housing 10 is configured as an arc surface, which can be adapted to match the cross-sectional shape of the inner peripheral surface of the housing 10, so as to ensure that the first rib 321 can closely fit the inner peripheral surface of the housing 10, prevent occurrence of a sealing gap, and enhance the sealing effect of the first seal member 30. The arcuate surface also facilitates demolding of the first seal 30 when the first seal 30 is an integral injection molded piece. Similarly, the same effect as the first rib 321 can be achieved by providing the surface of the second rib 322 contacting the housing 10 with an arcuate surface. For example, as shown in fig. 16, in other embodiments, a surface of the first rib 321, which contacts the housing 10, is configured as a wave-shaped curved surface formed by continuously connecting a plurality of arc surfaces, so that the same effect as that of the arc surfaces can be achieved, and meanwhile, a multi-channel sealing effect can be achieved, so that the risk of outward leakage of the medium is further reduced. Similarly, the same effect as the first rib 321 can be achieved by providing the surface of the second rib 322 contacting the housing 10 with a wavy curved surface formed by continuously connecting a plurality of arcuate surfaces.

Referring to fig. 6 and 13, in some embodiments, one of the inner peripheral surface of the housing 10 and the outer peripheral surface of the first seal member 30 is provided with a protrusion 15, and the other is provided with a groove 33 in plug-fit with the protrusion 15. For example, in the present embodiment, the inner peripheral surface of the housing 10 is provided with the convex portion 15, and the outer peripheral surface of the first seal 30 is provided with the groove 33. When the first sealing element 30 is assembled with the shell 10, the convex part 15 is in plug-in fit with the groove 33, so that the quick positioning and mounting of the first sealing element 30 are realized, and the assembly efficiency and the assembly accuracy are improved. And when the first sealing element 30 is assembled in place, the first sealing element 30 can be kept fixed relative to the shell 10 through the matching of the convex part 15 and the groove 33, so that dislocation caused by movement of the first sealing element 30 relative to the shell 10 in the rotating process of the valve core 20 is avoided, and sealing failure is further caused, so that the reliability of the sealing performance of the multi-way valve is further ensured. Of course, in some embodiments, a groove 33 may be provided in the housing 10, and the first seal member 30 may be provided with a protrusion 15, and the protrusion 15 may be in plug-fit with the groove 33 to achieve the same effect.

As shown in fig. 6 and 13, in one embodiment, a plurality of protruding portions 15 are circumferentially provided on the inner peripheral surface of the housing 10 at intervals, each protruding portion 15 is provided along the axial direction of the housing 10, a plurality of grooves 33 are circumferentially provided on the outer peripheral surface of the first seal member 30 at intervals, each groove 33 is provided along the axial direction of the first seal member 30 and is formed with a socket on the end surface of the first seal member 30, and the protruding portions 15 are in one-to-one plug-fit with the grooves 33.

In this embodiment, the inner peripheral surface of the housing 10 is provided with a plurality of protrusions 15, and correspondingly, the outer peripheral surface of the first sealing member 30 is provided with a plurality of grooves 33, and the plurality of protrusions 15 are in plug-in fit with the plurality of grooves 33 in a one-to-one correspondence manner, so that the assembly stability between the first sealing member 30 and the housing 10 can be effectively improved, and the first sealing member 30 is ensured not to be dislocated along with the rotation of the valve core 20, so as to ensure the sealing reliability. And each protrusion 15 and each groove 33 are provided in a long strip shape extending along the axial direction of the first sealing member 30, so that the contact area between the protrusion 15 and the groove 33 can be further increased, and the assembly stability between the first sealing member 30 and the housing 10 can be further improved. In addition, each groove 33 is formed with a socket on the end face of the first sealing member 30, and when assembling, the socket is only required to be aligned with the top end of the protruding portion 15, and then the first sealing member 30 is pressed downwards, so that rapid assembling between the first sealing member 30 and the housing 10 can be realized, and the assembling efficiency is further improved.

On the basis of the above embodiment, as shown in fig. 5 and 7, in an embodiment, each flow channel 102 further has an outer port 102b penetrating through the same end face of the housing 10, the multi-channel valve 100 further includes a second sealing member 40, the second sealing member 40 is disposed on the surface of the housing 10 where the outer port 102b is disposed, the second sealing member 40 is provided with a plurality of second avoidance through holes 41, and the second avoidance through holes 41 are disposed in one-to-one correspondence with and communicate with the outer ports 102 b.

In this embodiment, the outer ports 102b of the flow channels 102 are all located on the same end face of the housing 10, so that when the flow channels are connected with an external pipe, only the bus plate 200 is required to be arranged on the face of the housing 10 provided with a plurality of outer ports 102b for centralized external pipe connection, the assembly mode is simpler, a pipe connection structure is not required to be arranged on a plurality of surfaces of the housing 10, and the overall occupied space is smaller. And through setting up second sealing member 40 at the terminal surface of casing 10, after multichannel valve 100 and busbar 200 assembly, second sealing member 40 is located between the casing 10 and the busbar 200 of multichannel valve 100, and second sealing member 40 receives the extrusion and produces the deformation to can play fine sealing connection effect between casing 10 and busbar 200, so can realize the unified seal of multichannel valve 100 and busbar 200, sealing reliability is better, and the risk of fluid leakage outwards is lower. Alternatively, the second sealing member 40 is made of a rubber material, for example, EPDM (Ethylene Propylene Diene tripolymer, ethylene propylene diene monomer) material may be used for the second sealing member 40, so that the second sealing member 40 has characteristics of high cost performance, excellent aging resistance, excellent chemical resistance, excellent insulation performance and wide application temperature range.

Referring to fig. 6 to 8, in an embodiment, the housing 10 includes a housing body 11 disposed in a hollow cylindrical shape, and an annular boss 12 disposed at an outer periphery of one end of the housing body 11, the cavity of the housing body 11 forms a valve cavity 101, the annular boss 12 has a first end surface 121 and a second end surface 122 opposite to each other along an axial direction, the second end surface 122 is located at a side of the first end surface 121 facing away from the housing body 11, each inner end port 102a is disposed at an inner periphery of the housing body 11 and is disposed at intervals along a circumferential direction of the housing body 11, and each outer end port 102b is disposed at the second end surface 122 and is disposed at intervals along the circumferential direction of the annular boss 12. In this way, when connecting with an external pipeline, only the bus plate 200 needs to be assembled on the second end face 122, so that the plurality of external ports 102b of the second end face 122 are correspondingly communicated with the plurality of flow channels on the bus plate 200 one by one, and the connecting structure of the multi-channel valve 100 and the external pipeline is simpler.

Further, as shown in fig. 6, the housing 10 further includes a plurality of flow guiding portions 13 arranged at intervals along the circumferential direction of the housing body 11, one side of each flow guiding portion 13 is connected to the outer circumferential surface of the housing body 11, the other side is connected to the first end surface 121, each flow guiding portion 13 is provided with a flow guiding channel, and the inner ports 102a, the flow guiding channels and the outer ports 102b are sequentially communicated in a one-to-one correspondence manner to form the circulation channel 102.

In this embodiment, the flow guiding portion 13 extends radially outwards from the outer peripheral surface of the shell body 11, and two sides of the flow guiding portion 13 are respectively connected with the shell body 11 and the annular boss 12, so that a certain structural reinforcement effect can be achieved. Optionally, the shell body 11, the annular boss 12 and the flow guiding portion 13 are integrally formed, for example, by injection molding, so that not only can the manufacturing process be simplified, but also the structural strength of the shell 10 can be further improved. The inside of each diversion part 13 is hollow to construct a diversion flow passage, one end of the diversion flow passage is communicated with the inner port 102a, and the other end is communicated with the outer port 102b, so that a circulation passage 102 is formed. In this way, the medium inside the multi-channel valve 100 can be conveyed into the diversion flow channel through the inner port 102a, conveyed to the corresponding outer port 102b under the guidance of the diversion flow channel, and output to the external pipeline; or the medium may enter the flow-guiding flow channel from the outer port 102b, and be delivered to the corresponding inner port 102a under the guidance of the flow-guiding flow channel to enter the multi-channel valve 100.

Optionally, the diversion flow channel is arranged in an arc-shaped flow channel. Thus, the flow direction of the medium can be smoothly changed, the flow resistance of the medium can be reduced, and the medium is prevented from generating large impact on the inner wall surface of the guide part 13 in the flowing process.

As shown in fig. 1 and 5, in one embodiment, an end of the housing 10 away from the outer port 102b is provided with an end cap 50, the end cap 50 is provided with a through hole for the spindle 22 of the valve core 20 to pass through, and the multi-channel valve 100 further includes an actuator 60, where the actuator 60 is disposed on a side of the end cap 50 facing away from the housing 10, and the actuator 60 is in driving connection with the spindle 22 to drive the valve core 20 to rotate.

Specifically, the valve core 20 includes a valve core body 21 and a rotating shaft 22 connected with the valve core body 21, the actuator 60 may include a motor, a reduction gear set and a control circuit board, the vehicle is adapted to be in communication connection with the control circuit board, and is used for driving the motor in the actuator 60 to output a driving force, and the driving force outputs a torque to the rotating shaft 22 of the valve core 20 after passing through the reduction gear set, so as to drive the valve core 20 to rotate in the housing 10. When the multi-channel valve 100 works, the actuator 60 drives the valve core 20 to rotate, and after the valve core 20 rotates by a certain angle, the switching channel and the flow channel 102 start to be communicated, the valve core 20 continues to rotate, the conducting area of the switching channel and the flow channel 102 gradually increases, and the flow rate through which the switching channel and the flow channel can pass increases. Thus, by controlling the rotation angle of the spool 20, switching of multiple operation modes and flow control of the multi-channel valve 100 can be achieved.

Based on the above embodiments, the multi-channel valve 100 is an even-channel valve having an even number of valve ports, for example, in one embodiment, the multi-channel valve 100 is a 12-channel valve having 12 valve ports, so that more flow paths and mode switching of the multi-channel valve 100 can be satisfied.

As shown in fig. 17, the present invention also proposes a thermal management integrated module including a manifold plate 200 and a multi-channel valve 100. A plurality of flow channels 210 for flowing a medium are provided in the manifold 200; the multi-channel valve 100 is disposed on the manifold 200, and the flow channels 210 are in one-to-one correspondence with the flow channels 102, so that the valve core 20 rotates to control the flow channels 210 to switch communication to enable the thermal management integrated module to switch modes or flow paths. The specific structure of the multi-channel valve 100 refers to the above embodiment, and since the present thermal management integrated module adopts all the technical solutions of all the embodiments, at least has all the beneficial effects brought by the technical solutions of the embodiments, and will not be described in detail herein.

The thermal management integrated module of the present invention has a flowing medium in the flow channel 210 of the manifold plate 200 by providing the multi-channel valve 100 and the manifold plate 200. When the thermal management integrated module works, only the valve core 20 of the multi-channel valve 100 needs to be controlled to rotate, so that the valve core 20 is communicated with different flow channels 102 on the shell 10 in a switching manner, and then the switching of a plurality of flow channels and a plurality of modes of the multi-channel valve 100 can be realized, and further the switching of a plurality of flow channels 210 of the bus plate 200 can be realized, so that the thermal management integrated module can switch modes or flow channels, the control mode is simpler, and the cost is lower. And this multichannel valve 100 is through being equipped with first sealing member 30 between casing 10 and case 20, can guarantee at the rotation in-process of case 20 that first sealing member 30 can seal the clearance between case 20 and the casing 10, avoid switching channel or the medium in the circulation passageway 102 reveal and lead to multichannel valve 100 internal leakage and inefficacy from this clearance, and then can effectively avoid medium inside mixed flow, avoid multichannel valve 100's regulatory function to lose, ensure multichannel valve 100's performance reliability, and then can ensure thermal management integrated module's performance reliability.

The invention also proposes a vehicle comprising a thermal management integrated module. The specific structure of the thermal management integrated module refers to the above embodiments, and since the vehicle adopts all the technical solutions of all the embodiments, the thermal management integrated module has at least all the beneficial effects brought by the technical solutions of the embodiments, and will not be described in detail herein.

The vehicle may be a new energy vehicle, and in some embodiments, the new energy vehicle may be a pure electric vehicle using an electric motor as a main driving force, and in other embodiments, the new energy vehicle may be a hybrid vehicle using an internal combustion engine and an electric motor as main driving forces at the same time. Regarding the internal combustion engine and the motor that supply driving power to the new energy vehicle mentioned in the above embodiments, the internal combustion engine may use gasoline, diesel oil, hydrogen gas, or the like as fuel, and the manner of supplying electric power to the motor may use a power battery, a hydrogen fuel cell, or the like, without being particularly limited thereto. The present invention is not limited to the above-described embodiments, and may be applied to any other embodiments.

The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.

Claims

1. A multi-channel valve, comprising:

2. The multi-channel valve of claim 1, wherein at least one of an outer peripheral surface of the valve body and an inner peripheral surface of the first seal member is provided with a bead, and the valve body is in contact with the first seal member through the bead.

3. The multi-channel valve according to claim 1, wherein the switching channels are provided in a plurality, the plurality of switching channels including a first switching channel for communicating adjacent two of the inner ports and a second switching channel for communicating non-adjacent two of the inner ports, the spool being rotated to switch the first switching channel into communication with different ones of the inner ports and/or the second switching channel into communication with different ones of the inner ports.

4. The multi-channel valve according to claim 3, wherein the valve core comprises a valve core body, an outer peripheral surface of the valve core body is provided with a diversion cavity recessed toward a center of the valve core body, and the diversion cavity forms the first switching channel; the second switching channel comprises a diversion inner flow channel and two communication ports, wherein the diversion inner flow channel is arranged in the valve core body, and the two communication ports are both positioned on the outer peripheral surface of the valve core body and communicated through the diversion inner flow channel.

5. The multi-channel valve of claim 4, wherein the valve core further comprises ribs provided on an outer peripheral surface of the valve core body, the ribs surrounding a periphery of each of the flow guiding recessed cavities and a periphery of each of the communication ports, the ribs being in contact with an inner peripheral surface of the first sealing member.

6. The multi-channel valve according to claim 5, wherein the ribs comprise first ribs extending along the axial direction of the valve core and second ribs extending along the circumferential direction of the valve core, the first ribs are arranged between any two adjacent diversion cavities and between the adjacent diversion cavities and the communication ports, the second ribs are respectively arranged on two axial sides of the valve core, and the first ribs are intersected with the second ribs.

7. The multi-channel valve of claim 1, wherein an inner peripheral surface of the first seal is provided with a wear layer, the wear layer being in contact with the valve spool.

8. The multi-channel valve of claim 1, wherein the first sealing member comprises a sealing member body surrounding the periphery of the valve core, and sealing ribs protruding from the outer peripheral surface of the sealing member body, the first avoiding through holes are formed in the sealing member body, the sealing ribs are all surrounding the periphery of each first avoiding through hole, and the sealing ribs are in contact with the housing.

9. The multi-channel valve of claim 8, wherein the sealing rib comprises a first rib extending along the axial direction of the sealing member body and a second rib extending along the circumferential direction of the sealing member body, the first rib is arranged between any two adjacent first avoidance through holes, the second ribs are respectively arranged on two axial sides of the sealing member body, and the first ribs are intersected with the second ribs.

10. The multi-channel valve of claim 9, wherein a plurality of first ribs are disposed between any two adjacent first avoidance holes; and/or, a plurality of second ribs are respectively arranged on two axial sides of the sealing element body.

11. The multi-channel valve of claim 9, wherein a side of the first rib contacting the housing is provided with an arcuate surface or a wave-shaped curved surface; and/or the number of the groups of groups,

12. The multi-channel valve of claim 1, wherein one of the inner peripheral surface of the housing and the outer peripheral surface of the first seal member is provided with a protrusion, and the other is provided with a recess in mating engagement with the protrusion.

13. The multi-channel valve according to claim 12, wherein a plurality of protrusions are circumferentially provided on an inner peripheral surface of the housing at intervals, each of the protrusions is provided along an axial direction of the housing, a plurality of grooves are circumferentially provided on an outer peripheral surface of the first seal at intervals, each of the grooves is provided along an axial direction of the first seal and is formed with a socket on an end surface of the first seal, and the protrusions are in one-to-one mating engagement with the grooves.

14. The multi-channel valve of claim 1, wherein each of the flow channels further has an outer port extending through a same end face of the housing, the multi-channel valve further comprising a second sealing member disposed on a face of the housing where the outer port is disposed, the second sealing member being provided with a plurality of second relief through holes disposed in one-to-one correspondence and communicating with the outer ports.

15. The multi-channel valve of any one of claims 1 to 14 wherein the multi-channel valve is an even channel valve having an even number of valve ports.

16. A thermal management integrated module, comprising:

A multi-channel valve as claimed in any one of claims 1 to 15, wherein the multi-channel valve is arranged on the confluence plate, a plurality of flow channels are communicated with a plurality of flow channels in a one-to-one correspondence manner, and the valve core rotates to control a plurality of flow channels to switch and communicate so as to enable the thermal management integrated module to switch modes or flow channels.

17. A vehicle comprising the thermal management integrated module of claim 16.