Valve core member and multi-way valve

Abstract

a first through hole (12) and a second through hole (13) communicating with the flow passage (11) in a side wall of the inner cylinder structure (10); the outer cylinder structure (20) surrounds the inner cylinder structure (10); the outer cylinder structure (20) has a plurality of layers of flow chambers (21) arranged along the axial direction of the inner cylinder structure (10); the flow chambers (21) of each layer are partitioned into a plurality of sub-chambers along the circumferential direction of the inner cylinder structure (10); the openings of each sub-chamber face outward from the valve core member; the first through hole (12) communicating with one sub-chamber in the flow chamber (21) of one layer; and the second through hole (13) communicating with one sub-chamber in the flow chamber (21) of another layer. In such a valve core member, communication between the inner and outer tube structures is achieved by the first through hole, flow passage, and second through hole of the inner tube structure, and further, communication across the layers of the multiple flow chambers of the valve core member is achieved by the inner tube structure, thereby improving the performance and range of application of the valve core member.

Description

[Technical Field]

[0001] This application claims priority from a patent application filed with the State Intellectual Property Office of the People's Republic of China on January 30, 2022, bearing application number 202210114726.2, entitled "Multi-way valve", a patent application filed with the State Intellectual Property Office of the People's Republic of China on March 1, 2022, bearing application number 202210198315.6, entitled "Multi-way valve", and a patent application filed with the State Intellectual Property Office of the People's Republic of China on April 6, 2022, bearing application number 202210357051.4, entitled "Valve core member and multi-way valve".

[0002] The present application relates to the technical field of multi-way valves, and more particularly to a valve core member and a multi-way valve. [Background technology]

[0003] Currently, as multi-way valves are widely used, their performance is also improving. The outer cylindrical structure of a valve core member in the prior art has multiple flow chambers, each of which is divided into multiple subchambers. Communication between any two adjacent subchambers within the multiple flow chambers (which may be two adjacent subchambers within the same flow chamber, or two adjacent subchambers within each of two adjacent flow chambers) is used to achieve communication between different valve ports of the multi-way valve. However, in prior art valve core members, the inner cylindrical structure and the outer cylindrical structure are separated from each other, or there is no inner cylindrical structure. Therefore, the valve core member can only achieve communication between adjacent subchambers within the same flow chamber or two adjacent subchambers within two adjacent flow chambers. That is, communication between adjacent valve ports of the multi-way valve is limited, and communication between subchambers of two flow chambers across layers is not possible, and communication across valve ports of the multi-way valve is also not possible. Summary of the Invention

[0004] The present application provides a valve core member and a multi-way valve for improving the performance and application range of the valve core member and the multi-way valve.

[0005] In order to achieve the above-mentioned object, according to one aspect of the present application, the present application provides a valve core member including an inner tube structure and an outer tube structure, wherein the inner tube structure has a flow passage extending along its axial direction, the side wall of the inner tube structure has a first through hole and a second through hole communicating with the flow passage, the outer tube structure surrounds the inner tube structure and has multiple layers of flow chambers along the axial direction of the inner tube structure, the flow chambers of each layer are divided into multiple sub-chambers along the circumferential direction of the inner tube structure, the openings of each sub-chamber all face the outside of the valve core member, the first through hole communicates with one sub-chamber in the flow chamber of one layer, and the second through hole communicates with one sub-chamber in the flow chamber of another layer.

[0006] Furthermore, the outer cylindrical structure has at least three layers of flow chambers, and at least one layer of flow chambers is interposed between the first through hole and the second through hole in the axial direction of the inner cylindrical structure.

[0007] Furthermore, the outer cylindrical structure has four layers of flow chambers, and two layers of flow chambers are interposed between the first through hole and the second through hole in the axial direction of the inner cylindrical structure.

[0008] Furthermore, the inner cylinder structure includes an inner cylinder body, a rotating shaft structure, and a plurality of support plates, the rotating shaft structure penetrates the inner cylinder body, both ends of the support plate are connected to the outer wall of the rotating shaft structure and the inner wall of the inner cylinder body, respectively, the plurality of support plates are distributed along the circumferential direction of the inner cylinder body, the outer cylinder structure surrounds the inner cylinder body, the flow passage is located between the inner cylinder body, the rotating shaft structure, and two adjacent support plates, and the first through hole and the second through hole are both located in the inner cylinder body.

[0009] Further, the outer cylindrical structure includes a plurality of radial spacers and a plurality of axial spacers, the radial spacers being arranged along the radial direction of the inner cylindrical structure, the axial spacers being arranged along the axial direction of the inner cylindrical structure, the plurality of radial spacers being distributed at intervals along the axial direction of the inner cylindrical structure, the region between two adjacent radial spacers forming a single layer of flow chamber, and the plurality of axial spacers being distributed at intervals along the circumferential direction of the inner cylindrical structure to divide the flow chamber into a plurality of sub-chambers.

[0010] Furthermore, the valve core member is of one-piece construction.

[0011] Furthermore, the valve core member includes first and second valve cores that are rotatable relative to one another, the first valve core includes a first inner tube and a first outer tube surrounding the first inner tube, the second valve core includes a second inner tube and a second outer tube surrounding the second inner tube, the first inner tube and the second inner tube are connected to form an inner tube structure, the first outer tube and the second outer tube form an outer tube structure, the first inner tube has a first passage and a first through hole, the second inner tube has a second passage and a second through hole, the first passage and the second passage are connected to form a flow passage, the first outer tube has at least one layer of flow chambers, the second outer tube has at least one layer of flow chambers, the first through hole is connected to one flow chamber of the first outer tube, and the second through hole is connected to one flow chamber of the second outer tube.

[0012] Furthermore, the first inner cylinder includes a first cylindrical body, a first rotating shaft, and a plurality of first sub-plates, the first rotating shaft penetrates the first cylindrical body, and both ends of the first sub-plate are connected to the outer wall of the first rotating shaft and the inner wall of the first cylindrical body, respectively, a first through-hole is provided in the first cylindrical body, and a first passage is located between the first cylindrical body, the first rotating shaft, and two adjacent first sub-plates, the second inner cylinder includes a second cylindrical body, a second rotating shaft, and a plurality of second sub-plates, the second rotating shaft penetrates the second cylindrical body and the first rotating shaft, and both ends of the second sub-plate are connected to the outer wall of the second rotating shaft and the inner wall of the second cylindrical body, respectively, a second through-hole is provided in the second cylindrical body, and a second passage is located between the second cylindrical body, the second rotating shaft, and two adjacent second sub-plates.

[0013] According to another aspect of the present application, there is provided a multi-way valve including the above-described valve core member.

[0014] Furthermore, the valve core member has N layers of flow chambers, and the multi-way valve further includes a valve body and an actuator, the valve body has 2N valve ports, the valve core member is rotatably arranged in the chamber of the valve body, each layer of flow chambers corresponds to two valve ports, and the actuator is drivingly connected to the valve core member.

[0015]

[0009] Applying a technical aspect of the present application, there is provided a valve core member including an inner cylindrical structure and an outer cylindrical structure, wherein the inner cylindrical structure has a flow passage extending along its axial direction, the side wall of the inner cylindrical structure has first and second through holes communicating with the flow passage, the outer cylindrical structure surrounds the inner cylindrical structure, the outer cylindrical structure has multiple layers of flow chambers along the axial direction of the inner cylindrical structure, the flow chambers of each layer are divided into multiple subchambers along the circumferential direction of the inner cylindrical structure, the openings of each subchamber all face the outside of the valve core member, the first through hole communicates with one subchamber in the flow chamber of one layer, and the second through hole communicates with one subchamber in the flow chamber of the other layer. Using this aspect, the multiple layers of flow chambers in the outer cylindrical structure and the multiple subchambers in the flow chambers of each layer realize communication between two adjacent subchambers in the same layer or between two adjacent subchambers in two adjacent layers, and further realize communication between adjacent valve ports of a multi-way valve.

[0013] The first through hole communicates with one subchamber of one flow chamber, and the second through hole communicates with one subchamber of another flow chamber, so that the two subchambers of two flow chambers communicate via the flow passage. When the two flow chambers are adjacent, communication between the two subchambers in the adjacent two flow chambers is achieved, and communication between adjacent valve ports of the multi-way valve can be achieved. When the two flow chambers are spaced apart, communication between the two subchambers in the spaced-apart two flow chambers is achieved, and communication across the valve port of the multi-way valve can be achieved. In this way, communication between the inner and outer tube structures is achieved by the first through hole, the flow passage, and the second through hole of the inner tube structure. Furthermore, communication across the multiple flow chamber layers of the valve core member is achieved by the inner tube structure, improving the performance and range of application of the valve core member. [Brief explanation of the drawings]

[0016] The drawings in the specification that form a part of this application are intended to provide a further understanding of the application, and the schematic examples and descriptions thereof are intended to aid in the interpretation of the application and are not intended to unduly limit the application.

[0017] [Figure 1] 1 shows a structural schematic diagram of a valve core member provided by Example 1 of the present application. [Figure 2] 1 shows a structural schematic diagram of a valve core member provided by Example 2 of the present application. [Figure 3] 3 shows a cross-sectional view of the valve core member of FIG. 2. [Figure 4] FIG. 3 shows a structural schematic diagram of a first valve core in the valve core member of FIG. 2. [Figure 5] FIG. 3 shows a structural schematic diagram of a second valve core in the valve core member of FIG. 2. [Figure 6] 1 shows a structural schematic diagram of a multi-way valve provided by Example 3 of the present application. [Figure 7] 1 shows a partial structural schematic diagram of a multi-way valve provided by Example 4 of the present application. [Figure 8] An exploded schematic diagram of Figure 7 is shown. [Figure 9] 10 shows a structural schematic diagram of the second rotation prevention part in FIG. 9. [Figure 10] 10 is a schematic structural view of the second rotation prevention part in FIG. 9 as viewed from another angle. [Figure 11] FIG. 10 is a front view of the second rotation prevention part in FIG. 9. [Figure 12] A structural schematic diagram of the valve housing in FIG. 9 is shown. [Figure 13] FIG. 10 shows a structural schematic diagram of the valve core and the valve housing in FIG. 9 engaged with each other. [Figure 14] 10 shows a schematic view of engagement between a valve core member and a gasket of a multi-way valve provided by Example 5 of the present application. [Figure 15] 15 shows an exploded view of FIG. 14. [Figure 16] 15 shows a structural schematic diagram of the first communication structure of the multi-way valve of FIG. 14. [Figure 17]15A and 15B are structural schematic diagrams of the first and third communication structures of the multi-way valve of FIG. 14. [Figure 18] 15 shows a structural schematic diagram of the second communication structure of the multi-way valve of FIG. 14. [Figure 19] 19 shows an enlarged view of position A in FIG. 18. [Figure 20] 15 shows a structural schematic diagram of a cover plate in the multi-way valve of FIG. 14.

[0018] Here, the above drawings include the following reference numerals: 10 inner cylinder structure, 11 flow passage, 111 first passage, 112 second passage, 12 first through hole, 13 second through hole, 14 inner cylinder body, 15 rotating shaft structure, 16 support plate, 20 outer cylinder structure, 21 flow chamber, 2111 inlet chamber of first communication structure, 2112 first chamber of first communication structure, 2113 second chamber of first communication structure, 2114 third chamber of first communication structure, 2121 inlet chamber of second communication structure, 2122 first chamber of second communication structure, 2123 second chamber of second communication structure, 2124 third chamber of second communication structure, 2131 inlet chamber of third communication structure, 2132 first chamber of third communication structure, 2133 second chamber of third communication structure, 2134 third chamber of third communication structure, 22 radial spacer, 23 axial spacer, 30 First valve core, 31 First inner cylinder, 311 First cylinder, 312 First rotating shaft, 313 First sub-plate, 32 First outer cylinder, 40 Second valve core, 41 Second inner cylinder, 411 Second cylinder, 412 Second rotating shaft, 413 Second sub-plate, 42 Second outer cylinder, 50 Valve body, 51 Valve port, 52 Valve housing, 521 Accommodating chamber, 522 Positioning protrusion, 53 First anti-rotation portion, 54 Second anti-rotation portion, 5411 First side surface, 5412 Second side surface, 542 Connecting portion, 5421 First positioning portion, 54211 First end, 54212 Second end, 5422 Second positioning portion, 54221 Third end, 54222 Fourth end, 54223 Limiting surface, 54224 Engaging inclined surface, 543 Abutting portion, 544 Lightweight structure, 545 transition connection, 5451 fifth end, 5452 sixth end, 60 actuator, 71 first spacer, 72 top plate, 73 main body, 74 bottom plate, 75 through structure, 751 through hole, 7511 welding rib, 7512 welding avoidance groove, 752 cover plate, 7521 first step segment, 7522 second step segment, 7523 third step segment, 75231 limiting convex rib, 80 gasket, 81 first through hole, 82 second through hole, 83 third through hole, 84 fourth through hole. DETAILED DESCRIPTION OF THE INVENTION

[0019] Hereinafter, the technical aspects of the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application. However, it is clear that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. The description of at least one exemplary embodiment below is merely explanatory in nature and does not impose any restrictions on the present application and its application or use. Based on the embodiments of the present application, all other embodiments that can be obtained by those skilled in the art without creative efforts shall fall within the scope of protection of the present application.

[0020] As shown in Figure 1, Example 1 of the present application provides a valve core member including an inner tube structure 10 and an outer tube structure 20, in which the inner tube structure 10 has a flow passage 11 extending along its axial direction, the side wall of the inner tube structure 10 has a first through hole 12 and a second through hole 13 communicating with the flow passage 11, the outer tube structure 20 surrounds the inner tube structure 10, the outer tube structure 20 has multiple layers of flow chambers 21 along the axial direction of the inner tube structure 10, the flow chambers 21 of each layer are divided into multiple sub-chambers along the circumferential direction of the inner tube structure 10, the openings of each sub-chamber all face the outside of the valve core member, the first through hole 12 communicates with one sub-chamber within the flow chambers 21 of one layer, and the second through hole 13 communicates with one sub-chamber within the flow chambers 21 of another layer.

[0021] In this embodiment, the multiple layers of flow chambers 21 in the outer cylinder structure 20 and the multiple subchambers within the flow chambers 21 in each layer enable communication between two adjacent subchambers within the flow chambers 21 of the same layer, or between two adjacent subchambers within two adjacent layers of flow chambers 21, and further enable communication between adjacent valve ports 51 of the multi-way valve. The first through hole 12 communicates with one subchamber of the flow chamber 21 of one layer, and the second through hole 13 communicates with one subchamber of the flow chamber 21 of another layer, so that the two subchambers of the flow chamber 21 of two layers are communicated via the flow passage 11. When the flow chambers 21 of the two layers are adjacent, communication between the two subchambers within the adjacent flow chambers 21 of the two layers is achieved, and communication between adjacent valve ports 51 of the multi-way valve can also be achieved. When the flow chambers 21 of the two layers are spaced apart, communication between the two subchambers within the spaced-apart flow chambers 21 of the two layers is achieved, and communication across the valve port 51 of the multi-way valve can also be achieved. In this way, communication between the inner cylinder structure 10 and the outer cylinder structure 20 is achieved by the first through-hole 12, flow passage 11, and second through-hole 13 of the inner cylinder structure 10, and further, communication across the layers of the flow chambers 21 of the valve core member is achieved by the inner cylinder structure 10, improving the performance and range of application of the valve core member. Here, multiple layers means at least two layers, and multiple means at least two.

[0022] 1, the outer cylinder structure 20 has at least three layers of flow chambers 21, and at least one layer of flow chambers 21 is interposed between the first through hole 12 and the second through hole 13 in the axial direction of the inner cylinder structure 10. In this way, the first through hole 12, the flow passage 11, and the second through hole 13 realize communication between the first layer of flow chambers 21 and the third layer of flow chambers 21, and further realize communication across the valve port 51 of the multi-way valve, improving the performance and range of application of the valve core member.

[0023] Specifically, the outer cylinder structure 20 has four layers of flow chambers 21, and two layers of flow chambers 21 are interposed between the first through hole 12 and the second through hole 13 in the axial direction of the inner cylinder structure 10. In this manner, communication between the first layer of flow chambers 21 and the fourth layer of flow chambers 21 is achieved by the first through hole 12, the flow passage 11, and the second through hole 13, and further communication across the valve port 51 of the multi-way valve is achieved, thereby improving the performance and range of application of the valve core member. Alternatively, communication between the first layer of flow chambers 21 and the third layer of flow chambers 21, or communication between the second layer of flow chambers 21 and the fourth layer of flow chambers 21 may be achieved by the first through hole 12, the flow passage 11, and the second through hole 13, further improving the performance and range of application of the valve core member.

[0024] Furthermore, the inner cylinder structure 10 includes an inner cylinder body 14, a rotating shaft structure 15 and a plurality of support plates 16, the rotating shaft structure 15 penetrates the inner cylinder body 14, both ends of the support plate 16 are connected to the outer wall of the rotating shaft structure 15 and the inner wall of the inner cylinder body 14, respectively, the plurality of support plates 16 are distributed along the circumferential direction of the inner cylinder body 14, the outer cylinder structure 20 surrounds the inner cylinder body 14, the flow passage 11 is located between the inner cylinder body 14, the rotating shaft structure 15 and two adjacent support plates 16, and the first through hole 12 and the second through hole 13 are both located in the inner cylinder body 14.

[0025] In this embodiment, the provision of the rotating shaft structure 15 allows the inner cylindrical body 14 to rotate together with the rotating shaft structure 15, thereby realizing the rotation of the entire valve core member and further realizing adjustment of the communication state of the valve port 51 of the multi-way valve, thereby ensuring the reliability of the valve core member. The provision of multiple support plates 16 strengthens the connection strength between the inner cylindrical body 14 and the rotating shaft structure 15, further strengthening the structural strength of the inner cylindrical structure 10. Specifically, the first through hole 12 and the second through hole 13 are both located on the outer wall of the inner cylindrical body 14 and communicate with the flow chamber 21 of the outer cylindrical structure 20, and further realizing communication between the flow chamber 21 and the flow passage 11.

[0026] As shown in Figure 1, the outer cylindrical structure 20 includes a plurality of radial spacers 22 and a plurality of axial spacers 23, the radial spacers 22 are arranged along the radial direction of the inner cylindrical structure 10, the axial spacers 23 are arranged along the axial direction of the inner cylindrical structure 10, the plurality of radial spacers 22 are distributed at intervals along the axial direction of the inner cylindrical structure 10, the area between two adjacent radial spacers 22 forms one layer of flow chamber 21, and the plurality of axial spacers 23 are distributed at intervals along the circumferential direction of the inner cylindrical structure 10, dividing the flow chamber 21 into a plurality of sub-chambers.

[0027] In this embodiment, by providing a plurality of radial spacers 22 to divide the outer cylindrical structure 20 of the valve core structure into layers, the area inside the outer cylindrical structure 20 is partitioned into a plurality of layers of flow chambers 21, and each layer of flow chambers 21 is partitioned into a plurality of sub-chambers by a plurality of axial spacers 23. In this way, by rotating the rotating shaft structure 15 to move and rotate the inner cylindrical body 14 and the outer cylindrical structure 20, it is possible to switch the plurality of sub-chambers in the outer cylindrical structure 20 in the circumferential direction, and further to adjust the communication state of the valve port 51 of the multi-way valve, thereby ensuring the reliability of the valve core member.

[0028] Specifically, the valve core member has an integral structure, which makes it easier to process the valve core member and improves processing efficiency.

[0029] As shown in FIGS. 2 to 5, the valve core member provided in the second embodiment of the present invention includes a first valve core 30 and a second valve core 40 that are rotatable relative to each other. The first valve core 30 includes a first inner cylinder 31 and a first outer cylinder 32 that surrounds the first inner cylinder 31. The second valve core 40 includes a second inner cylinder 41 and a second outer cylinder 42 that surrounds the second inner cylinder 41. The first inner cylinder 31 and the second inner cylinder 41 are connected to form an inner cylinder structure 10. The first outer cylinder 32 and the second outer cylinder 42 form an outer cylinder structure 20. The first inner cylinder 31 and the second inner cylinder 41 are connected to each other to form an inner cylinder structure 10. 1 has a first passage 111 and a first through hole 12, the second inner cylinder 41 has a second passage 112 and a second through hole 13, the first passage 111 and the second passage 112 are connected to form a flow passage 11, the first outer cylinder 32 has at least one layer of flow chambers 21, the second outer cylinder 42 has at least one layer of flow chambers 21, the first through hole 12 is connected to one flow chamber 21 of the first outer cylinder 32, and the second through hole 13 is connected to one flow chamber 21 of the second outer cylinder 42, which differs from the above embodiments.

[0030] In this embodiment, the valve core member is divided into a first valve core 30 and a second valve core 40, which together have a multi-layer flow chamber 21. Depending on the relative positions of the first outer cylinder 32 and the second outer cylinder 42 and the communication state of their sub-chambers, flow between two adjacent sub-chambers can be achieved. Two adjacent sub-chambers may both be located in the first outer cylinder 32, or two adjacent sub-chambers may both be located in the second outer cylinder 42, or one sub-chamber may be located in the first outer cylinder 32 and the other adjacent sub-chamber may be located in the second outer cylinder 42, thereby further realizing communication between adjacent valve ports 51 of the multi-way valve. Furthermore, communication between the first passage 111 provided in the first valve core 30 and the second passage 112 provided in the second valve core 40 realizes communication between the first through hole 12 and the second through hole 13, and further realizes communication between one sub-chamber of the first valve core 30 and one sub-chamber of the second valve core 40. In this way, not only can communication be realized between the sub-chambers of two adjacent flow chambers 21, but also between two sub-chambers across the flow chamber 21. Specifically, the first valve core 30 and the second valve core 40 have the same radial dimension and are arranged with their heads and tails facing each other.

[0031] As shown in FIGS. 3 to 5, the first inner cylinder 31 includes a first cylindrical body 311, a first rotating shaft 312, and a plurality of first sub-plates 313. The first rotating shaft 312 penetrates the first cylindrical body 311. Both ends of the first sub-plate 313 are connected to the outer wall of the first rotating shaft 312 and the inner wall of the first cylindrical body 311, respectively. The first through-hole 12 is provided in the first cylindrical body 311. The first passage 111 is located between the first cylindrical body 311, the first rotating shaft 312, and two adjacent first sub-plates 313. The second inner cylinder 41 includes a second cylindrical body 411, a second rotating shaft 412, and a plurality of second sub-plates 413, the second rotating shaft 412 penetrates the second cylindrical body 411 and the first rotating shaft 312, both ends of the second sub-plate 413 are connected to the outer wall of the second rotating shaft 412 and the inner wall of the second cylindrical body 411, respectively, a second through hole 13 is provided in the second cylindrical body 411, and a second passage 112 is located between the second cylindrical body 411, the second rotating shaft 412, and two adjacent second sub-plates 413.

[0032] In this embodiment, the multiple first sub-plates 313 improve the connection strength between the first cylindrical body 311 and the first rotating shaft 312, thereby enhancing the structural strength of the first inner cylinder 31 and the reliability of the first valve core 30. The multiple second sub-plates 413 improve the connection strength between the second cylindrical body 411 and the second rotating shaft 412, thereby enhancing the structural strength of the second inner cylinder 41 and the reliability of the second valve core 40. Specifically, because the first cylindrical body 311 and the second cylindrical body 411 can both rotate independently, the relative positions of the first valve core 30 and the second valve core 40 can be changed in more diverse ways, which improves the adjustability of the communication states of all sub-chambers of both the first valve core 30 and the second valve core 40, thereby improving the applicability of the valve core member.

[0033] As shown in FIG. 6, a third embodiment of the present invention provides a multi-way valve including the above-mentioned valve core member.

[0034] Specifically, the valve core member has N layers of flow chambers 21, the multi-way valve further includes a valve body 50 and an actuator 60, the valve body 50 has 2N valve ports 51, the valve core member is rotatably arranged in the chamber of the valve body 50, each layer of flow chambers 21 corresponds to two valve ports 51, and the actuator 60 is drivingly connected to the valve core member.

[0035] In this embodiment, the valve ports 51 in the valve disc 50 are opened and closed by rotating the valve core member, the outer cylinder structure mainly adjusts the opening and closing state of any two adjacent valve ports 51 among the 2N valve ports 51, and the inner cylinder structure mainly adjusts the opening and closing state of any two spaced apart rows of the N rows of valve ports 51, thereby improving the adjustment performance and application range of the multi-way valve. Specifically, in this embodiment, N=4, and there are eight valve ports 51, which are divided into two rows and four columns, with each of the four columns corresponding one-to-one to the four flow chambers 21.

[0036] As shown in Figures 7 to 13, Example 4 of the present invention provides a multi-way valve in which a valve body 50 includes a valve housing 52, an end cover, and an anti-rotation structure, a valve port 51 is provided in the valve housing 52, the valve housing 52 has a accommodating chamber 521 and an opening which are connected to each other, the end cover is provided at the opening of the valve housing 52, a valve core member is rotatably provided in the accommodating chamber 521, and the anti-rotation structure is provided between the valve housing 52 and the valve core member, and the anti-rotation structure is used to limit the rotation angle of the valve core member within the valve housing 52.

[0037] The technical aspect of the present invention provides an anti-rotation structure that limits the rotation angle of the valve core member within the valve housing 52 so that it rotates within a predetermined angular range, ensuring the accuracy of the valve core member's rotation and ensuring smooth switching of the multi-way valve between multiple operating states. Specifically, in this aspect, the anti-rotation structure is provided between the valve housing 52 and the valve core member. When the anti-rotation structure limits the rotation angle of the valve core member, the force of the anti-rotation structure is transmitted to the valve housing 52 and the valve core member. Compared to the conventional technical aspect in which the anti-rotation structure is provided between the end cover and the valve core member of the multi-way valve, the valve housing 52 has a greater force-bearing capacity than the end cover. This reduces the risk of damage to the valve housing 52 compared to the end cover, thereby improving the overall structural strength of the device and ensuring the service life of the multi-way valve. Furthermore, this configuration prevents the anti-rotation structure from interfering with the end cover when assembling the end cover and the valve housing 52, improving the ease of assembling the end cover.

[0038] 7 to 9 , the anti-rotation structure includes a first anti-rotation part 53 and a second anti-rotation part 54, the first anti-rotation part 53 being provided at the end of the valve core member, and the second anti-rotation part 54 being provided on the valve housing 52 and located within the receiving chamber 521. The second anti-rotation part 54 has a first side 5411 and a second side 5412 that are oppositely provided along the rotation direction of the valve core member, and the first anti-rotation part 53 can engage with the first side 5411 and the second side 5412 to limit the rotation angle of the valve core member. When the multi-way valve is operated, the valve core member rotates, causing the first anti-rotation part 53 to rotate. After the valve core member rotates to a predetermined angle, the first anti-rotation part 53 comes into contact with the first side 5411 or the second side 5412 of the second anti-rotation part 54, stopping the rotation of the valve core member. Specifically, although there is a certain gap between the valve core member and the inner wall of the valve housing 52, by providing the first anti-rotation portion 53 at the end of the valve core member, it is possible to prevent the first anti-rotation portion 53 from occupying the gap between the valve core member and the valve housing 52, and further to ensure the compactness of the overall structure of the multi-way valve.

[0039] Furthermore, the second rotation prevention part 54 is detachably connected to the valve housing 52. This prevents interference of the second rotation prevention part 54 when assembling the valve core member and the valve housing 52, improving the ease of assembling the valve housing 52 and the valve core member. In addition, because the rotation angle of the valve core member is limited by the first side surface 5411 and the second side surface 5412 of the second rotation prevention part 54, if the rotation angle of the valve core member needs to be changed, it is sufficient to replace the second rotation prevention part 54 with one of different specifications and dimensions. This widens the rotatable angle of the valve core member and improves the adaptability of the multi-way valve.

[0040] Furthermore, the first rotation prevention part 53 is fixedly connected to the end of the valve core member, and the first rotation prevention part 53 and the end of the valve core member are integrally molded. This ensures a stable connection between the first rotation prevention part 53 and the valve core member, and also ensures ease of processing the first rotation prevention part 53 and the valve core member.

[0041] Optionally, the first anti-rotation portion 53 is detachably connected to the end of the valve core member. Here, the detachable connection can be achieved by a locking or fastening member, but the present embodiment does not limit the specific form of the detachable connection. This can improve the flexibility of the engagement between the first anti-rotation portion 53 and the first anti-rotation portion 53.

[0042] 7 to 11, the second anti-rotation part 54 includes a connecting part 542 and an abutting part 543. The connecting part 542 is detachably connected to the valve housing 52 and is located on the outer periphery of the valve core member. The abutting part 543 is provided on the connecting part 542, and the abutting part 543 and the connecting part 542 are distributed along the radial direction of the valve housing 52. The abutting part 543 is located at one end of the valve core member and is limit-engaged with the first anti-rotation part 53. Specifically, the second anti-rotation part 54 extends along the circumferential direction of the valve housing 52, and the second anti-rotation part 54, the valve core member, and the valve housing 52 are coaxially arranged. The connecting part 542 is located in the gap between the valve core member and the valve housing 52. The connecting portion 542 has a first top end and a first bottom end disposed opposite each other along the axial direction of the valve housing 52, and the abutting portion 543 has a second top end and a second bottom end disposed opposite each other, the first top end and the second top end being flush with each other, the first bottom end protruding from the second bottom end, and the first bottom end of the connecting portion 542 being located in the gap between the valve core member and the valve housing 52. This configuration makes efficient use of the gap between the inner circumferential surface of the valve housing 52 and the circumferential surface of the valve core member, ensuring a compact structure of the multi-way valve. Furthermore, this configuration ensures that the multi-way valve is easily assembled by assembling the valve core member into the valve housing 52 and then attaching the connecting portion 542 to the valve housing 52.

[0043] Furthermore, an axial positioning structure is provided between the valve housing 52 and the connecting portion 542, and the axial positioning structure can determine the axial position of the connecting portion 542 within the valve housing 52. A circumferential positioning structure is further provided between the valve housing 52 and the connecting portion 542, and the circumferential positioning structure is used to determine the circumferential position of the connecting portion 542 within the valve housing 52. Because the second anti-rotation portion 54 and the valve housing 52 are separate structures and the axial positioning structure and the circumferential positioning structure are provided, it is possible to ensure the stability of the assembly of the second anti-rotation portion 54 and the valve housing 52, and further to ensure the operational stability of the multi-way valve.

[0044] 7 and 12 , the inner wall of the valve housing 52 is provided with two positioning protrusions 522, which are spaced apart along the circumferential direction of the valve housing 52 and are located on the outer periphery of the valve core member, with a locking gap formed between the two positioning protrusions 522. The connecting portion 542 extends along the circumferential direction of the valve housing 52 and includes a first positioning portion 5421 and a second positioning portion 5422 arranged in this order along the axial direction of the valve housing 52, with the outer surfaces of the first positioning portion 5421 and the second positioning portion 5422 both in close contact with the inner circumferential surface of the valve housing 52. Along the circumferential direction of the valve housing 52, the first positioning portion 5421 has a first end 54211 and a second end 54212 arranged opposite each other, and the second positioning portion 5422 has a third end 54221 and a fourth end 54222 arranged opposite each other, the third end 54221 being arranged close to the first end 54211 and the fourth end 54222 being arranged close to the second end 54212, the first end 54211 and the second end 54212 protruding from the third end 54221 and the fourth end 54222 corresponding to the third end 54221 and the fourth end 54222 in the circumferential direction of the valve housing 52, and the side surfaces of the first end 54211 and the second end 54212 facing the second positioning portion 5422 abut and engage with the positioning protrusion 522 to form an axial positioning structure. The second positioning portion 5422 is positioned within the locking gap, and both ends of the second positioning portion 5422 are interference-fit with the two positioning protrusions 522, respectively, to form a circumferential positioning structure. When attaching the second rotation prevention portion 54, the second positioning portion 5422 is inserted into the locking gap until the first positioning portion 5421 abuts against the two positioning protrusions 522. This configuration eliminates the need to fasten the second rotation prevention portion 54 and the valve housing 52 with additional fastening members when attaching them. This also ensures the structural strength of the second rotation prevention portion 54 and the valve housing 52, thereby ensuring the service life of the multi-way valve. This configuration also allows for easy assembly of the second rotation prevention portion 54 and the valve housing 52.

[0045] Furthermore, the end surfaces of the third end 54221 and the fourth end 54222 each have a limiting surface 54223 and an engaging inclined surface 54224 connected to each other. The limiting surface 54223 and the engaging inclined surface 54224 are provided along the axial direction of the valve housing 52. The limiting surface 54223 is provided close to the first positioning portion 5421. The circumferential dimensions of the two engaging inclined surfaces 54224 of the third end 54221 and the fourth end 54222 gradually decrease in the direction away from the first positioning portion 5421. Specifically, the limiting surface 54223 abuts and engages with the positioning protrusion 522, and there is a certain gap between the engaging inclined surface 54224 and the positioning protrusion 522. This configuration makes it easy to insert the second positioning portion 5422 into the engagement gap between the two positioning protrusions 522.

[0046] Furthermore, contact portion 543 is located at the center of connecting portion 542 in the circumferential extension direction, and contact portion 543 is provided on the inner circumferential surface of first positioning portion 5421. In this manner, second rotation preventing portion 54 has a symmetrical structure, and further, it is possible to ensure that second rotation preventing portion 54 receives a uniform force, thereby ensuring the service life of second rotation preventing portion 54.

[0047] 10 , the second rotation prevention portion 54 further includes a transition connection portion 545, which is provided between the abutting portion 543 and the first positioning portion 5421, and the abutting portion 543, the transition connection portion 545, and the first positioning portion 5421 are formed as an integral unit. The transition connection portion 545 has a fifth end 5451 and a sixth end 5452 that are provided opposite to each other along the circumferential direction of the valve housing 52, and the fifth end 5451 extends to the first end 54211 of the first positioning portion 5421, and the sixth end 5452 extends to the second end 54212 of the first positioning portion 5421. The transition connecting portion 545 has a third top end and a third bottom end arranged opposite to each other along the axial direction of the valve housing 52, the third top end of the transition connecting portion 545 and the second top end of the abutting portion 543 being flush with each other, and the third bottom end of the transition connecting portion 545 and the second bottom end of the abutting portion 543 being flush with each other, and the height of the transition connecting portion 545 along the axial direction is lower than the height of the first positioning portion 5421 along the axial direction. In this way, the thickness of the top of the second rotation preventing portion 54 can be increased, further ensuring the structural strength of the second rotation preventing portion 54.

[0048] 8, the positioning protrusion 522 is formed by recessing the side wall of the valve housing 52 toward the accommodating chamber 521. This makes it easier to process and mold the valve housing 52.

[0049] Alternatively, the positioning protrusion 522 is provided on the inner peripheral surface of the valve housing 52, and the positioning protrusion 522 and the valve housing 52 are integrally molded.

[0050] 9 and 10 , second rotation preventing portion 54 is provided with a weight-reducing structure 544. In this embodiment, connecting portion 542 has a plurality of first weight-reducing grooves arranged at intervals on the outer peripheral surface thereof, and these first weight-reducing grooves form weight-reducing structure 544. In addition, a second weight-reducing groove is formed on the end surface of the second apex of abutting portion 543, and these second weight-reducing grooves form weight-reducing structure 544. The provision of the weight-reducing structure can save raw materials for second rotation preventing portion 54, facilitate processing and forming of second rotation preventing portion 54, and increase the structural strength of second rotation preventing portion 54.

[0051] As shown in Figures 14 to 20, Example 5 of the present invention provides a multi-way valve, wherein the multiple valve ports 51 include at least an inlet, a first outlet, a second outlet, and a third outlet, which are distributed in an array, the inlet and the second outlet being located in one row, and the first outlet and the third outlet being located in another row, the valve core member has multiple communication structures, and any four sub-chambers distributed in the array form one communication structure, and the multiple sub-chambers are respectively an inlet chamber, a first chamber, a second chamber, and a third chamber, the inlet chamber matches the inlet, the first chamber matches the first outlet, the second chamber matches the second outlet, and the third chamber matches the third outlet, and the valve core member communicates the inlet with the first outlet, the second outlet, and the third outlet through the multiple communication structures.

[0052] When the technical aspect of the present invention is applied, the valve core member is provided with a plurality of communication structures, the inlet chamber of each communication structure matches the inlet of the housing, the first chamber of the communication structure matches the first outlet, the second chamber of the communication structure matches the second outlet, and the third chamber of the communication structure matches the third outlet, and the valve core member communicates the inlet with the first outlet, the second outlet, and the third outlet through the communication structures. By using the above aspect, the inlet and the third outlet can be communicated through the communication structures, thereby realizing a flow pattern in which fluid flows in through the inlet and flows out through the third outlet, and further increasing the flow patterns of the multi-way valve, thereby expanding the range of use of the multi-way valve.

[0053] Specifically, the inlet and the third outlet are disposed diagonally, and the inlet chamber and the third chamber are disposed diagonally.

[0054] Specifically, the multi-way valve further includes a gasket 80, which is provided between the valve core member and the housing. The gasket is provided with a first through-hole 81, a second through-hole 82, a third through-hole 83, and a fourth through-hole 84, with the first through-hole 81 corresponding to the first outlet, the second through-hole 82 corresponding to the second outlet, the third through-hole 83 corresponding to the third outlet, and the fourth through-hole 84 corresponding to the inlet.

[0055] As shown in Figures 16 and 18, the multi-way valve is a four-way valve, and the multiple communication structures are distributed circumferentially around the valve core member. The multiple communication structures include a first communication structure, the first chamber 2112 of the first communication structure and the inlet chamber 2111 of the first communication structure are independent of each other, the second chamber 2113 of the first communication structure is connected to the inlet chamber 2111 of the first communication structure, and the third chamber 2114 of the first communication structure is connected to the second chamber 2113 of the first communication structure. The valve core member further includes a first spacer 71, which is located within the second chamber 2113 of the first communication structure and between the second chamber 2113 of the first communication structure and the second outlet, thereby isolating the second chamber 2113 of the first communication structure from the second outlet. The first chamber 2112 of the first communication structure and the inlet chamber 2111 of the first communication structure are independent of each other, thereby preventing communication between the inlet and the first outlet. The second chamber 2113 of the first communication structure communicates with the inlet chamber 2111 of the first communication structure, and the third chamber 2114 of the first communication structure communicates with the second chamber 2113 of the first communication structure, thereby connecting the inlet with the second chamber 2113 of the first communication structure and the third chamber 2114 of the first communication structure. The first spacer 71 is provided within the second chamber 2113 of the first communication structure, preventing fluid from flowing out of the second outlet, thereby realizing communication between the inlet and only the third outlet.

[0056] In this embodiment, the valve core member includes a top plate 72 and a bottom plate 74, and the inner cylinder structure 10 and the outer cylinder structure 20 are connected to form a main body 73. The top plate 72 and the bottom plate 74 are provided at both ends of the main body 73, and the valve core member is further provided with a void structure 75, which is provided corresponding to the second chamber 2113 of the first communication structure. Since the first spacer 71 is provided within the second chamber 2113 of the first communication structure, providing the void structure 75 makes it easier to remove the mold when casting the valve core member and the first communication structure, and improves the success rate of molding the first communication structure.

[0057] Specifically, the second chamber 2113 of the first communication structure is located adjacent to the bottom plate 74, and the vent structure 75 includes a vent 751 and a cover plate 752. The vent 751 is located in the bottom plate 74, and the cover plate 752 is located outside the bottom plate 74, and the cover plate 752 can seal the vent 751. The vent 751 is located in the bottom plate 74 and corresponds to the second chamber 2113 of the first communication structure, allowing the mold in the second chamber 2113 of the first communication structure to be quickly removed during casting. The cover plate 752 seals the vent 751, thereby preventing fluid from leaking through the vent 751. The above embodiment has a simple structure, low cost, and is easy to process.

[0058] As shown in Figures 19 and 20, a welding rib 7511 is provided on one end face of the hole 751 away from the main body 73, and the welding rib 7511 surrounds the outer periphery of the hole 751. The cover plate 752 includes a first step segment 7521, a second step segment 7522, and a third step segment 7523 connected in sequence, and the circumferential structural dimensions of the first step segment 7521, the second step segment 7522, and the third step segment 7523 gradually increase. The first step segment 7521 is inserted into the hole 751, and the end face of the third step segment 7523 facing the main body 73 is in close contact with the end face of the welding rib 7511, and the third step segment 7523 is fixedly connected to the welding rib 7511.

[0059] Alternatively, an end face of the welding rib 7511 may be welded to an end face of the third step segment 7523 facing the main body 73, thereby securing the cover plate 752 to the welding rib 7511 and sealingly connecting the cover plate 752 and the welding rib 7511. The provision of the welding rib 7511 increases the contact area between the cover plate 752 and the welding rib 7511, improves the stability of the connection between the welding rib 7511 and the cover plate 752, and improves the sealing performance between the welding rib 7511 and the cover plate 752. The cover plate 752 is made up of a first step segment 7521, a second step segment 7522 and a third step segment 7523, and the first step segment 7521 is inserted into the through hole 751 and the second step segment 7522 is closely attached to the end face of the through hole 751 at one end away from the main body 73, thereby further increasing the stability of the connection between the cover plate 752 and the through hole 751.

[0060] Alternatively, the end face of the cover plate 752 at one end remote from the main body 73 may be flush with the end face of the bottom plate 74, thereby preventing the cover plate 752 from protruding beyond the bottom plate 74. This shortens the overall length of the valve core member, reducing the space it occupies within the accommodating chamber and further reducing the overall volume of the multi-way valve.

[0061] 19, a welding avoidance groove 7512 is provided on the outer periphery of the welding rib 7511. When welding the cover plate 752 and the welding rib 7511 together, the welding avoidance groove 7512 is used to avoid the welding head, thereby ensuring the welding effect.

[0062] 20 , a limiting convex rib 75231 is provided on the side wall of the first step segment 7521. The limiting convex rib 75231 abuts against the inner wall of the through hole 751 to fix the position of the first step segment 7521 within the through hole 751. The limiting convex rib 75231 stably locks the first step segment 7521 within the through hole 751, thereby preventing the cover plate 752 from rattling relative to the through hole 751 when welding the cover plate 752 to the welding rib 7511, thereby ensuring connection and sealing effects. In addition, the limiting convex rib 75231 on the first step segment 7521 guides the first step segment 7521 when the cover plate 752 is installed within the through hole 751, thereby improving the installation speed.

[0063] 18, the plurality of communication structures further includes a second communication structure, in which the inlet chamber 2121 of the second communication structure communicates with the first chamber 2122 of the second communication structure, and the inlet chamber 2121 of the second communication structure, the second chamber 2123 of the second communication structure, and the third chamber 2124 of the second communication structure are all independent of each other. The second communication structure allows communication between the inlet and the first outlet.

[0064] 17, the plurality of communication structures further includes a third communication structure, in which the inlet chamber 2131 of the third communication structure communicates with the second chamber 2133 of the third communication structure, and the inlet chamber 2131 of the third communication structure, the first chamber 2132 of the third communication structure, and the third chamber 2134 of the third communication structure are all independent of each other. The third communication structure allows communication between the inlet and the second outlet.

[0065] Specifically, the plurality of communication structures further includes a fourth communication structure, the inlet chamber of which communicates with the first chamber of the fourth communication structure and the second chamber of the fourth communication structure, and the inlet chamber of the fourth communication structure and the third chamber of the fourth communication structure are independent of each other, and the fourth communication structure can communicate the inlet with the first outlet and the second outlet.

[0066] Furthermore, the multi-way valve is a four-way valve, i.e., the outer cylindrical structure 20 of the valve core member has two layers of flow chambers 21, and the first, second, third, and fourth communication structures are arranged in order circumferentially around the body 73. By rotating the valve core member, the first communication structure can be aligned with the inlet, first outlet, second outlet, and third outlet of the valve element 50, or the second communication structure can be aligned with the inlet, first outlet, second outlet, and third outlet of the valve element 50, or the third communication structure can be aligned with the inlet, first outlet, second outlet, and third outlet of the valve element 50, or the fourth communication structure can be aligned with the inlet, first outlet, second outlet, and third outlet of the valve element 50. Accordingly, fluid can flow in through the inlet and out through the third outlet, or through the first outlet, or through the second outlet, or through the first and second outlets. The above embodiment has a simple structure, is easy to process, and has low manufacturing costs.

[0067] Alternatively, the multi-way valve may be other multi-way valves such as a five-way valve, a six-way valve, an eight-way valve, etc., which can all realize diagonal communication between the inlets and the outlets. In other embodiments not shown in the present application, the valve port 51 further includes at least one fourth outlet, the fourth outlet is located between the inlet and the second outlet and is located in the same row as the inlet and the second outlet, at least one fourth chamber is further provided between the inlet chamber and the second chamber, the inlet chamber, the fourth chamber and the second chamber are located in the same row, and the third chamber is located in a different row from the inlet chamber, the fourth chamber and the second chamber; the multiple communication structures further include a fifth communication structure, and the first of the fifth communication structures the chamber and the inlet chamber of the fifth communication structure are independent of each other, the fourth chamber of the fifth communication structure communicates with the inlet chamber of the fifth communication structure, the fourth chamber of the fifth communication structure communicates with the second chamber of the fifth communication structure, and the third chamber of the fifth communication structure communicates with the second chamber of the fifth communication structure; the valve core member further includes a second spacer, which is provided in each of the second and fourth chambers of the fifth communication structure and is correspondingly positioned between the second chamber and the second outlet, and between the fourth chamber and the fourth outlet, of the fifth communication structure, so that the second chamber and the second outlet, and the fourth chamber and the fourth outlet, of the fifth communication structure are isolated from each other.

[0068] The above is only a preferred embodiment of the present application, and is not intended to limit the present application, and those skilled in the art can make various modifications and variations to the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A valve core member including an inner cylinder structure (10) and an outer cylinder structure (20), The inner cylindrical structure (10) has a flow passage (11) extending along its axial direction, and a side wall of the inner cylindrical structure (10) has a first through hole (12) and a second through hole (13) communicating with the flow passage (11), The outer cylindrical structure (20) surrounds the inner cylindrical structure (10), and the outer cylindrical structure (20) has a plurality of layers of flow chambers (21) along the axial direction of the inner cylindrical structure (10), and the flow chambers (21) in each layer are partitioned into a plurality of sub-chambers along the circumferential direction of the inner cylindrical structure (10), and the openings of each of the sub-chambers all face the outside of the valve core member, The first through hole (12) communicates with one subchamber in the flow chamber (21) of one layer, and the second through hole (13) communicates with one subchamber in the flow chamber (21) of another layer.

2. 2. The valve core member according to claim 1, wherein the outer cylindrical structure (20) has at least three layers of the flow chambers (21), and at least one layer of the flow chambers (21) is interposed between the first through hole (12) and the second through hole (13) in the axial direction of the inner cylindrical structure (10).

3. 3. The valve core member according to claim 2, wherein the outer cylindrical structure (20) has four layers of the flow chambers (21), and two layers of the flow chambers (21) are interposed between the first through hole (12) and the second through hole (13) in the axial direction of the inner cylindrical structure (10).

4. 2. The valve core member according to claim 1, wherein the inner cylinder structure (10) includes an inner cylinder body (14), a rotating shaft structure (15), and a plurality of support plates (16), the rotating shaft structure (15) penetrates the inner cylinder body (14), both ends of the support plate (16) are connected to the outer wall of the rotating shaft structure (15) and the inner wall of the inner cylinder body (14), respectively, the plurality of support plates (16) are distributed along the circumferential direction of the inner cylinder body (14), the outer cylinder structure (20) surrounds the inner cylinder body (14), the flow passage (11) is located between the inner cylinder body (14), the rotating shaft structure (15), and two adjacent support plates (16), and the first through hole (12) and the second through hole (13) are both located in the inner cylinder body (14).

5. 2. The valve core member according to claim 1, wherein the outer cylindrical structure (20) includes a plurality of radial spacers (22) and a plurality of axial spacers (23), the radial spacers (22) being arranged along the radial direction of the inner cylindrical structure (10), the axial spacers (23) being arranged along the axial direction of the inner cylindrical structure (10), the plurality of radial spacers (22) being distributed at intervals along the axial direction of the inner cylindrical structure (10), a region between two adjacent radial spacers (22) forming one layer of the flow chamber (21), and the plurality of axial spacers (23) being distributed at intervals along the circumferential direction of the inner cylindrical structure (10) to divide the flow chamber (21) into a plurality of sub-chambers.

6. The valve core member according to claim 1 , wherein the valve core member is of a unitary structure.

7. The valve core member includes a first valve core (30) and a second valve core (40) that are rotatable relative to each other, the first valve core (30) includes a first inner cylinder (31) and a first outer cylinder (32) that is provided surrounding the first inner cylinder (31), the second valve core (40) includes a second inner cylinder (41) and a second outer cylinder (42) that is provided surrounding the second inner cylinder (41), the first inner cylinder (31) and the second inner cylinder (41) are connected to form the inner cylinder structure (10), the first outer cylinder (32) and the second outer cylinder (42) form the outer cylinder structure (20), and the first inner cylinder (31) has a first passage (111) and the first through-hole the second inner cylinder (41) has a second passage (112) and the second through hole (13), the first passage (111) and the second passage (112) communicate with each other to form the flow passage (11), the first outer cylinder (32) has at least one layer of the flow chambers (21), the second outer cylinder (42) has at least one layer of the flow chambers (21), the first through hole (12) communicates with one of the flow chambers (21) of the first outer cylinder (32), and the second through hole (13) communicates with one of the flow chambers (21) of the second outer cylinder (42).

8. The first inner cylinder (31) includes a first cylindrical body (311), a first rotating shaft (312) and a plurality of first sub-plates (313), the first rotating shaft (312) passes through the first cylindrical body (311), both ends of the first sub-plates (313) are connected to the outer wall of the first rotating shaft (312) and the inner wall of the first cylindrical body (311), respectively, the first through-hole (12) is provided in the first cylindrical body (311), the first passage (111) is located between the first cylindrical body (311), the first rotating shaft (312) and two adjacent first sub-plates (313), and the second inner cylinder (41) includes a second 8. The valve core member of claim 7, comprising a cylindrical body (411), a second rotating shaft (412), and a plurality of second sub-plates (413), wherein the second rotating shaft (412) penetrates the second cylindrical body (411) and the first rotating shaft (312), both ends of the second sub-plates (413) are connected to the outer wall of the second rotating shaft (412) and the inner wall of the second cylindrical body (411), respectively, the second through hole (13) is provided in the second cylindrical body (411), and the second passage (112) is located between the second cylindrical body (411), the second rotating shaft (412), and two adjacent second sub-plates (413).

9. A multi-way valve comprising the valve core member according to any one of claims 1 to 8.

10. 10. The multi-way valve according to claim 9, wherein the valve core member has N layers of the flow chambers (21), the multi-way valve further includes a valve body (50) and an actuator (60), the valve body (50) has 2N valve ports (51), the valve core member is rotatably disposed within the chamber of the valve body (50), the flow chambers (21) of each layer correspond to two of the valve ports (51), and the actuator (60) is drivingly connected to the valve core member.

11. 11. The multi-way valve of claim 10, wherein the valve body includes a valve housing, an end cover, and an anti-rotation structure, the valve port is provided in the valve housing, the valve housing has a accommodating chamber and an opening that are connected to each other, the end cover is provided in the opening of the valve housing, the valve core member is rotatably provided in the accommodating chamber, the anti-rotation structure is provided between the valve housing and the valve core member, and the anti-rotation structure is used to limit the rotation angle of the valve core member within the valve housing.

12. 12. The multi-way valve of claim 11, wherein the anti-rotation structure includes a first anti-rotation portion (53) and a second anti-rotation portion (54), the first anti-rotation portion (53) being provided at an end of the valve core member, the second anti-rotation portion (54) being provided on the valve housing (52), and the second anti-rotation portion (54) being located within the accommodating chamber (521), the second anti-rotation portion (54) having a first side surface (5411) and a second side surface (5412) provided opposite each other along the rotation direction of the valve core member, and the first anti-rotation portion (53) being capable of limiting engagement with the first side surface (5411) and the second side surface (5412) to limit the rotation angle of the valve core member.

13. 13. The multi-way valve of claim 12, wherein the second anti-rotation portion (54) is removably connected to the valve housing (52).

14. 14. The multi-way valve of claim 13, wherein the second anti-rotation portion (54) includes a connecting portion (542) and an abutting portion (543), the connecting portion (542) is detachably connected to the valve housing (52) and is located on the outer periphery of the valve core member, the abutting portion (543) is provided on the connecting portion (542), the abutting portion (543) and the connecting portion (542) are distributed along the radial direction of the valve housing (52), the abutting portion (543) is located at one end of the valve core member, and the abutting portion (543) is limit-engaged with the first anti-rotation portion (53).

15. an axial positioning structure is provided between the valve housing (52) and the connecting portion (542), and the axial positioning structure can position the axial position of the connecting portion (542) within the valve housing (52); and / or a circumferential positioning structure is further provided between the valve housing (52) and the connecting portion (542), the circumferential positioning structure being used to position the circumferential position of the connecting portion (542) within the valve housing (52).

16. The inner wall of the valve housing (52) is provided with two positioning protrusions (522), which are spaced apart along the circumferential direction of the valve housing (52) and are located on the outer periphery of the valve core member, with a locking gap formed between the two positioning protrusions (522); The connecting portion (542) extends along the circumferential direction of the valve housing (52), and includes a first positioning portion (5421) and a second positioning portion (5422) that are provided in this order along the axial direction of the valve housing (52). Along the circumferential direction of the valve housing (52), the first positioning portion (5421) has a first end (54211) and a second end (54212) that are provided opposite to each other, and the second positioning portion (5422) has a third end (54221) and a fourth end (54222) that are provided opposite to each other, and the third end (54221) is located at the first end (54211) and the second end (54212) that is located opposite to each other. the fourth end (54222) is provided adjacent to the first end (54211), the fourth end (54222) is provided adjacent to the second end (54212), the first end (54211) and the second end (54212) protrude from the third end (54221) and the fourth end (54222) in a circumferential direction of the valve housing (52) corresponding to the third end (54221) and the fourth end (54222), and the side surfaces of the first end (54211) and the second end (54212) facing the second positioning portion (5422) abut and engage with the positioning protrusion (522) to form the axial positioning structure; The multi-way valve of claim 15, wherein the second positioning portion (5422) is located within the locking gap, and both ends of the second positioning portion (5422) are interference-fitted into the two positioning protrusions (522), respectively, to form the circumferential positioning structure.

17. A multi-way valve as described in claim 16, wherein the end surfaces of the third end (54221) and the fourth end (54222) both have limiting surfaces (54223) and engaging inclined surfaces (54224) connected to each other, the limiting surfaces (54223) and the engaging inclined surfaces (54224) are arranged along the axial direction of the valve housing (52), the limiting surfaces (54223) are arranged close to the first positioning portion (5421), and the circumferential dimensions of the two engaging inclined surfaces (54224) of the third end (54221) and the fourth end (54222) gradually decrease in the direction away from the first positioning portion (5421).

18. 17. The multi-way valve according to claim 16, wherein the positioning protrusion (522) is formed by recessing a side wall of the valve housing (52) toward the accommodating chamber (521).

19. 13. The multi-way valve according to claim 12, wherein the second anti-rotation portion (54) is provided with a lightweight structure (544).

20. the plurality of valve ports (51) include at least an inlet, a first outlet, a second outlet, and a third outlet distributed in an array, the inlet and the second outlet being located in one row, and the first outlet and the third outlet being located in another row; 11. The multi-way valve of claim 10, wherein the valve core member has a plurality of communication structures, and any four of the sub-chambers distributed in an array form one communication structure, and the plurality of sub-chambers are an inlet chamber, a first chamber, a second chamber, and a third chamber, respectively, the inlet chamber fits to the inlet, the first chamber fits to the first outlet, the second chamber fits to the second outlet, and the third chamber fits to the third outlet, and the valve core member communicates the inlet with the first outlet, the second outlet, and the third outlet through the plurality of communication structures.

21. 21. The multi-way valve of claim 20, wherein the multi-way valve is a four-way valve, the plurality of communication structures are distributed along the circumferential direction of the valve core member, the plurality of communication structures include a first communication structure, a first chamber (2112) of the first communication structure and an inlet chamber (2111) of the first communication structure are independent of each other, a second chamber (2113) of the first communication structure is in communication with the inlet chamber (2111) of the first communication structure, and a third chamber (2114) of the first communication structure is in communication with the second chamber (2113) of the first communication structure, and the valve core member further includes a first spacer (71), the first spacer (71) is provided in the second chamber (2113) of the first communication structure and is positioned between the second chamber (2113) of the first communication structure and the second outlet, thereby blocking the second chamber (2113) of the first communication structure from the second outlet.

22. 22. The multi-way valve of claim 21, wherein the valve core member includes a top plate (72) and a bottom plate (74), the inner cylindrical structure (10) and the outer cylindrical structure (20) are connected to form a main body (73), the top plate (72) and the bottom plate (74) are provided at both ends of the main body (73), and the valve core member is further provided with an opening structure (75), the opening structure (75) being provided corresponding to the second chamber (2113) of the first communication structure.

23. 23. The multi-way valve of claim 22, wherein the second chamber (2113) of the first communication structure is provided adjacent to the bottom plate (74), the through structure (75) includes a through hole (751) and a cover plate (752), the through hole (751) is provided in the bottom plate (74), the cover plate (752) is located outside the bottom plate (74), and the cover plate (752) can seal the through hole (751).

24. 24. The multi-way valve of claim 23, wherein a welding rib (7511) is provided on an end face of one end of the through hole (751) away from the main body (73), and the welding rib (7511) surrounds the outer periphery of the through hole (751), the cover plate (752) includes a first step segment (7521), a second step segment (7522), and a third step segment (7523) connected in sequence, the first step segment (7521), the second step segment (7522), and the third step segment (7523) have gradually increasing structural dimensions in the circumferential direction, the first step segment (7521) is inserted into the through hole (751), the end face of the third step segment (7523) facing the main body (73) is in close contact with the end face of the welding rib (7511), and the third step segment (7523) is fixedly connected to the welding rib (7511).

25. 25. The multi-way valve according to claim 24, wherein the welding rib (7511) has a welding avoidance groove (7512) on its outer periphery.

26. A multi-way valve as described in claim 24, wherein a limiting convex rib (4231) is provided on the side wall of the first step segment (7521), and the limiting convex rib (4231) abuts against the inner wall of the through hole (751) to fix the position of the first step segment (7521) within the through hole (751).

27. A multi-way valve as described in claim 20, wherein the plurality of communication structures further includes a second communication structure, the inlet chamber (2121) of the second communication structure is connected to the first chamber (2122) of the second communication structure, and the inlet chamber (2121) of the second communication structure, the second chamber (2123) of the second communication structure, and the third chamber (2124) of the second communication structure are all independent of each other.

28. A multi-way valve as described in claim 20, wherein the plurality of communication structures further includes a third communication structure, the inlet chamber (2131) of the third communication structure being connected to the second chamber (2133) of the third communication structure, and the inlet chamber (2131) of the third communication structure, the first chamber (2132) of the third communication structure, and the third chamber (2134) of the third communication structure are all independent of each other.

29. 21. The multi-way valve of claim 20, wherein the plurality of communication structures further includes a fourth communication structure, wherein an inlet chamber of the fourth communication structure communicates with each of the first chamber of the fourth communication structure and the second chamber of the fourth communication structure, and wherein the inlet chamber of the fourth communication structure and the third chamber of the fourth communication structure are independent of each other.

30. 21. The multi-way valve of claim 20, wherein the inlet and the third outlet are diagonally disposed, and the inlet chamber and the third chamber are diagonally disposed.

31. the valve port (51) further includes at least one fourth outlet, the fourth outlet being located between the inlet and the second outlet and in the same row as the inlet and the second outlet; at least one fourth chamber is further provided between the inlet chamber and the second chamber, the inlet chamber, the fourth chamber and the second chamber being located in the same row, and the third chamber being located in a different row from the inlet chamber, the fourth chamber and the second chamber; 21. The multi-way valve of claim 20, wherein the plurality of communication structures further include a fifth communication structure, wherein a first chamber of the fifth communication structure and an inlet chamber of the fifth communication structure are independent of each other, a fourth chamber of the fifth communication structure communicates with the inlet chamber of the fifth communication structure, the fourth chamber of the fifth communication structure communicates with the second chamber of the fifth communication structure, and the third chamber of the fifth communication structure communicates with the second chamber of the fifth communication structure, and the valve core member further includes second spacers, wherein the second spacers are provided in the second chamber and the fourth chamber of the fifth communication structure, and are positioned correspondingly between the second chamber and the second outlet, and between the fourth chamber and the fourth outlet, of the fifth communication structure, so that the second chamber of the fifth communication structure is isolated from the second outlet, and the fourth chamber is isolated from the fourth outlet.

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