Sliding type multi-way valve

Abstract

The invention relates to the technical field of fluid control devices, in particular to a sliding type multi-way valve. According to the sliding type multi-way valve, a mounting cavity and a valve body connector communicated with the mounting cavity are formed in a valve body; the valve core is arranged in the mounting cavity in a sliding manner; the valve element is provided with an inner channel and a plurality of valve element circulation openings communicated with the inner channel. The circulation channel is arranged between the valve body and the valve element; the two different valve body connectors can be communicated through the same circulation channel so as to form an outer side channel. The two different valve body connectors can be communicated through the two different valve element circulation openings to form an inner side channel. The actuator can drive the valve element to move in the length direction of the mounting cavity so that different outer side channels and different inner side channels can be achieved. The sliding type multi-way valve is simple in structure, low in cost and high in reliability.

Description

Technical Field

[0001] The invention relates to the technical field of fluid control devices, and in particular to a sliding multi-way valve. Background Art

[0002] New energy vehicles have complex cooling requirements for batteries, motors, reducers, controllers, and engines, and integrated fluid control valves have become a development trend in the industry. In the current fluid management system, multi-way valves are often used to change the flow path mode. Multi-way valves are usually multi-way electronic water valves. In order to meet the requirements of the internal leakage value of the multi-way valve, the compression of the internal leakage rubber seal and the valve core is usually set larger, which results in a larger torque required for the rotation of the valve core. At present, the actuator of the multi-way valve in the industry needs to pass through a multi-stage gear set to generate a larger torque, which makes the actuator very complex, thereby making the structure of the multi-way valve complex and the cost high. Summary of the invention

[0003] The object of the present invention is to provide a sliding multi-way valve, so as to solve the technical problems of complex structure and high cost of the multi-way valve in the prior art to a certain extent.

[0004] The present invention provides a sliding multi-way valve, comprising: a valve body, which is provided with an installation cavity and a valve body interface connected to the installation cavity; a valve core, which is slidably arranged in the installation cavity; the valve core is provided with an inner channel and a plurality of valve core flow ports connected to the inner channel; a flow channel, which is arranged between the valve body and the valve core; two different valve body interfaces can be connected through the same flow channel to form an outer passage; two different valve body interfaces can be connected through two different valve core flow ports to form an inner passage; an actuator, which is transmission-connected to the valve core; the actuator can drive the valve core to move along the length direction of the installation cavity to realize different outer passages and different inner passages.

[0005] The sliding multi-way valve drives the valve core to move linearly along the length direction of the valve body in the installation cavity through the actuator, thereby realizing different fluid paths. The valve core moves horizontally, which can easily meet the internal leakage requirements of the multi-way valve. At the same time, the force required to move the valve core is greatly reduced compared with the force of traditional rotational movement. Therefore, the actuator only needs to generate a small force to meet the valve core movement requirement, which can make the structural setting of the actuator simple, reduce costs and improve reliability at the same time.

[0006] Further, the sliding multi-way valve also includes a sealing member, which is located between the valve body and the valve core, so as to at least prevent leakage of fluid in the circulation channel; a gap is provided between the inner wall of the valve body and the outer wall of the valve core; the sealing member includes a plurality of local sealing members spaced apart along the length direction of the valve body, and the circulation channel is formed between the inner wall of the valve body, the outer wall of the valve core and the local sealing members; or, a second groove is provided on at least one of the inner wall of the valve body and the outer wall of the valve core, and the second groove forms the circulation channel; the sealing member includes a plurality of local sealing members spaced apart along the length direction of the valve body, and the circulation channel is formed between the inner wall of the valve body, the outer wall of the valve core and the local sealing members.

[0007] Furthermore, a plurality of the partial sealing members are arranged on the inner wall of the valve body along the length direction of the valve body.

[0008] Furthermore, a plurality of the partial sealing members are arranged on the inner wall of the valve core along the length direction of the valve core.

[0009] Furthermore, the local sealing component includes an annular circulation installation block and a circulation sealing ring, the annular circulation sealing block is provided with an annular circulation installation groove, and the circulation sealing ring is installed in the annular circulation installation groove; the annular circulation installation block is fixed on the outer wall of the valve core.

[0010] Furthermore, along the length direction of the valve body, a plurality of annular grooves are provided on the inner wall of the valve body, and a plurality of connecting ports for connecting the valve body interface with the installation cavity are arranged in the plurality of annular grooves in a one-to-one correspondence.

[0011] Furthermore, along the circumferential direction and the length direction of the valve body, a plurality of valve body interfaces are provided on the valve body at intervals.

[0012] Further, the installation cavity includes a guide cavity and a flow cavity which are interconnected; the multiple valve body interfaces include a guide portion interface which is connected to the guide cavity and a flow portion interface which is connected to the flow cavity; the multiple flow portion interfaces are spaced apart along the length direction and circumference direction of the valve body; the multiple valve core flow ports include a flow portion flow port and a guide portion flow port which are both connected to the inner channel; the multiple flow portion flow ports are spaced apart along the length direction and circumference direction of the valve core; the guide portion interface and the guide portion flow port are always connected.

[0013] Further, the guide part interface is arranged on the side of the guide cavity, and the guide part flow port is arranged at one end of the valve core close to the guide cavity or at the side of the valve core close to the guide cavity; and / or, the guide part interface is arranged at one end of the guide cavity away from the flow cavity, and the guide part flow port is arranged at one end of the valve core close to the guide cavity or at the side of the valve core close to the guide cavity.

[0014] As an optional scheme, along the circumference of the valve body, the valve body includes a first side and a second side arranged at intervals; the multiple flow-through interfaces include N first side interfaces and N-1 second side interfaces; along the length direction of the valve body, the N first side interfaces are arranged at intervals, the N-1 second side interfaces are arranged at intervals, and a second side interface is provided between two adjacent first side interfaces; in the length direction of the valve core, the two flow-through openings are respectively arranged at the two ends of the valve core; the number of the flow channels is N-1; the actuator drives the valve core to move along the length direction of the mounting cavity, thereby connecting the first side interface at one end with a flow-through opening at the corresponding end; the N-1 first side interfaces are connected one-to-one with the N-1 second side interfaces through the N-1 flow channels.

[0015] As an optional scheme, a partition is provided in the inner channel, and the partition divides the inner channel into a plurality of sub-channels, and the plurality of sub-channels are arranged in sequence along the circumference of the valve core; along the length direction of the valve core, at least some of the sub-channels are connected to a plurality of valve core flow ports arranged at intervals; among the plurality of valve body interfaces, at least some of the valve body interfaces are arranged on a side of the valve body corresponding to the valve core flow ports, and are arranged at intervals along the length direction of the valve body; the actuator drives the valve core to move along the length direction of the installation cavity, thereby correspondingly connecting at least two of the valve body interfaces with two valve core flow ports connected to the same sub-channel, and / or connecting the flow channel to at least two of the valve body interfaces.

[0016] The present invention also provides a fluid management system, comprising the above-mentioned sliding multi-way valve and a pipeline; the valve body is integrally formed on the pipeline.

[0017] It should be understood that both the foregoing general description and the following specific embodiments are for the purpose of example and illustration and do not necessarily limit the present disclosure. The accompanying drawings, which are incorporated into and constitute a part of the specification, illustrate the subject matter of the present disclosure. At the same time, the specification and the drawings are used to explain the principles of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic structural diagram of a sliding multi-way valve according to an embodiment of the present invention;

[0020] Figure 2 for Figure 1 An exploded view of a sliding multi-port valve is shown;

[0021] Figure 3 for Figure 1 The structural schematic diagram of the valve body in the sliding multi-way valve shown;

[0022] Figure 4 for Figure 1 A cross-sectional view of a valve body in a sliding multi-way valve shown;

[0023] Figure 5 for Figure 1 The structural schematic diagram of the valve core in the sliding multi-way valve shown;

[0024] Figure 6 for Figure 1 A cross-sectional view of a valve core in a sliding multi-way valve shown;

[0025] Figure 7 for Figure 1 The structural schematic diagram of the pressing piece in the sliding multi-way valve shown;

[0026] Figure 8 for Figure 1 The structural schematic diagram of the sliding multi-way valve in the first working mode is shown;

[0027] Fig. 9 for Figure 1 The structural diagram of the second working mode of the sliding multi-way valve shown;

[0028] Fig.10 It is a structural schematic diagram of a first working mode of a sliding multi-way valve according to another embodiment of the present invention;

[0029] Fig.11 for Fig.10 The structural diagram of the second working mode of the sliding multi-way valve shown;

[0030] Fig.12 This is a structural schematic diagram of a first working mode of a sliding multi-way valve according to another embodiment of the present invention;

[0031] Fig.13 for Fig.12 The structural schematic diagram of the second working mode of the sliding multi-way valve is shown.

[0032] icon:

[0033] 1-valve body; 11-circulation cavity; 12-guide cavity; 13-circulation part interface; 14-guide part interface; 15-communication port; 16-annular groove; 17-first end; 18-second end; 131-first side interface; 132-second side interface; 133-first valve body interface; 134-second valve body interface; 135-third valve body interface; 136-fourth valve body interface; 137-fifth valve body interface; 138-sixth valve body interface; 1311-first interface; 1312-second interface; 1313-third interface; 1321-fourth interface; 1322-fifth interface;

[0034] 2-valve core; 21-inner channel; 22-guiding portion flow opening; 23-flow portion flow opening; 24-flow section; 25-connecting section; 211-first branch channel; 212-second branch channel; 231-first flow portion flow opening; 232-second flow portion flow opening; 233-first flow opening; 234-second flow opening; 235-third flow opening; 236-fourth flow opening;

[0035] 3- circulation channel;

[0036] 4-partial seal; 41-circulation mounting block; 42-circulation sealing ring; 43-first partial seal; 44-second partial seal; 45-third partial seal;

[0037] 5-pressing plate; 51-through hole; 52-connecting hole; 53-boss;

[0038] 6-end seal; 61-end mounting block; 62-end sealing ring. DETAILED DESCRIPTION

[0039] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0040] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0041] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0042] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", and "fourth" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0045] like Figures 1 to 13 As shown, the present invention provides a sliding multi-way valve, comprising: a valve body 1, on which is provided an installation cavity and a valve body interface connected to the installation cavity; a valve core 2, which is slidably arranged in the installation cavity; the valve core 2 is provided with an inner channel 21 and a plurality of valve core flow ports connected to the inner channel 21; a flow channel 3, which is arranged between the valve body 1 and the valve core 2; two different valve body interfaces can be connected through the same flow channel 3 to form an outer passage; two different valve body interfaces can be connected through two different valve core flow ports to form an inner passage, wherein the two different valve core flow ports are connected through the inner channel.

[0046] In this embodiment, the two valve body interfaces forming an inner passage are different, and the two valve body interfaces form an inner passage interface group. Then, different inner passage interface groups can realize different inner passages through the valve core flow port and the inner channel 21, wherein one valve body interface in one inner passage interface group can be different from one valve body interface in another inner passage interface group, and the other valve body interface in the two inner passage interface groups are the same, or, the two valve body interfaces in one inner passage interface group are different from the two valve body interfaces in the other inner passage interface group; the two valve body interfaces forming an outer passage are different, and the two valve body interfaces form an outer passage interface group. Then, different outer passage interface groups can realize different outer passages by being connected through the flow channel, wherein one valve body interface in one outer passage interface group can be different from one valve body interface in another outer passage interface group, and the other valve body interface in the two outer passage interface groups are the same, or, the two valve body interfaces in one outer passage interface group are different from the two valve body interfaces in the other outer passage interface group. The actuator drives the valve core 2 to move linearly along the length direction of the valve body 1 to achieve different inner passage interface group connections and / or different outer passage interface group connections (specifically, the inner passage interface group changes, and the outer passage interface group remains unchanged; or, the inner passage interface group remains unchanged, and the outer passage interface group changes; or both the inner passage interface group and the outer passage interface group change), thereby achieving different inner passages and / or different outer passages. By changing the different positions of the valve core 2 in the installation cavity, it can be achieved that only the inner passage is connected, or only the outer passage is connected, or both the inner passage and the outer passage are connected, thereby realizing multiple fluid passages.

[0047] The sliding multi-way valve provided in this embodiment drives the valve core to move linearly along the length direction of the valve body in the installation cavity through the actuator, thereby realizing different fluid passages. The valve core 2 moves horizontally, which can easily meet the internal leakage requirements of the multi-way valve. At the same time, the force required to move the valve core 2 is greatly reduced compared with the force of traditional rotational movement. Therefore, the actuator only needs to generate a smaller force to meet the movement requirement of the valve core 2, which can make the structural setting of the actuator simple, reduce costs and improve reliability at the same time.

[0048] It should be noted that the valve body interface is not limited to forming an inner passage or an outer passage. When the valve core is in one position, a valve body interface can be used to form an inner passage, and when the valve core is in another position, the valve body interface can be used to form an outer passage.

[0049] Among them, the actuator can adopt a linear motor, which has a simple structure and low cost.

[0050] The cross-section of the valve body 1 may be circular. Optionally, the valve body 1 is a rectangular parallelepiped, and the mounting cavity is arranged along the length direction of the valve body 1. Such an arrangement can make the connection structure between the sliding multi-way valve and the external pipeline regular, which is conducive to reducing the occupied space of the sliding multi-way valve and the external pipeline. It should be noted that the rectangular parallelepiped includes an ordinary rectangular parallelepiped and a cube. Of course, in other embodiments, the cross-section of the valve body 1 may also be circular or polygonal.

[0051] The shape of the cross section of the installation cavity can be set according to the cross section shape of the valve core 2, for example, a triangle, a quadrilateral, a pentagon or a circle.

[0052] like Figures 1 to 12 As shown, based on the above embodiment, the sliding multi-way valve further includes a sealing member, which is located between the valve body 1 and the valve core 2 to at least prevent the fluid in the flow channel from leaking. If necessary, a sealing member can also be provided to seal between the two ends of the valve body and the two ends of the valve core to prevent the fluid from leaking from the gap between the valve body and the valve core.

[0053] On the basis of the above embodiments, there are multiple structures for forming the circulation channel. As an optional scheme, the seal is an integral seal, and a first groove is provided on the inner wall or the outer wall of the seal. The first groove forms the circulation channel, and the first groove is provided with a through hole for communicating with the valve body interface.

[0054] In this embodiment, the sealing member is an integral body, and a plurality of first grooves may be provided on the sealing member. The plurality of first grooves form a plurality of circulation channels, and different outer passages are realized through the plurality of circulation channels.

[0055] As another optional solution, a gap is provided between the side wall of the installation cavity and the outer wall of the valve core 2; the seal includes a plurality of partial seals spaced apart along the length direction of the valve body, and a flow channel is formed between the inner wall of the valve body, the outer wall of the valve core, and the partial seal. Alternatively, a second groove is provided on at least one of the inner wall of the valve body and the outer wall of the valve core, and the second groove forms a flow channel (specifically, the second groove can be provided on the inner wall of the valve body, or on the outer wall of the valve core, or on both the inner wall of the valve body and the outer wall of the valve core); the seal includes a plurality of partial seals spaced apart along the length direction of the valve body, and a flow channel is formed between the inner wall of the valve body, the outer wall of the valve core, and the partial seal.

[0056] The number of partial seals can be set according to the number of valve body interfaces and the number of outer passages and inner passages to be realized. For example, at least two partial seals can be set to form one circulation channel; or at least three partial seals can be set to form two circulation channels; or at least four partial seals can be set to form three circulation channels, etc.

[0057] As an optional solution, multiple local seals are arranged on the inner wall of the valve body along the length direction of the valve body, and the seals are fixed to the inner wall of the valve body, and the seals and the valve body can be connected and fixed by interference fit, bonding, etc. In this case, the local seals do not move with the valve core.

[0058] As another optional solution, multiple partial seals are arranged on the inner wall of the valve core along the length direction of the valve core. In this case, the partial seals move with the valve core. The partial seals can be pre-installed and fixed on the valve core 2. When the valve core 2 is installed in place, the partial seal 4 is also installed. The installation space of the partial seal 4 is large, which is convenient for installation.

[0059] In this embodiment, the sealing member is sleeved on the outer periphery of the valve core and fixedly connected to the valve core, and the connection methods include interference fit, bonding, etc. A partial sealing member may be provided along the length direction of the valve core 2, at least on one side of the valve core flow opening close to another valve core flow opening (it should be noted that the arrangement of the partial sealing member is only an example, and other structures may also be provided).

[0060] On the basis of the above embodiment, further, the seal also includes an end seal. In the length direction of the valve body, an end seal can be set at the end of the valve body; or an end seal can be set at the end of the valve core; or an end seal can be set at the end of the valve body and at the end of the valve core. The end seal is set on the inner wall of the valve core along the length direction of the valve core. In this case, the end seal moves with the valve core. The end seal can be pre-installed and fixed on the valve core 2. When the valve core 2 is installed in place, the end seal 6 is also installed. The installation space of the end seal 6 is large, which is convenient for installation.

[0061] Specifically, Figure 6 As shown, the local sealing member 4 includes an annular circulation installation block 41 and a circulation sealing ring 42. The annular circulation sealing block is provided with an annular circulation installation groove, and the circulation sealing ring 42 is installed in the annular circulation installation groove; the annular circulation installation block 41 is fixed on the outer wall of the valve core 2.

[0062] The end sealing member 6 comprises an annular end mounting block 61 and an end sealing ring 62. The annular end sealing block 61 is provided with an annular end mounting groove, and the end sealing ring 62 is mounted in the annular end mounting groove.

[0063] like Figure 4 As shown, based on the above embodiment, further, along the length direction of the valve body 1, a plurality of annular grooves 16 are provided on the inner wall of the valve body 1, and a plurality of connecting ports 15 for connecting the valve body interface with the installation cavity are arranged in the plurality of annular grooves one by one.

[0064] In this embodiment, the annular groove 16 is provided to prevent the circulation sealing ring 42 and the end sealing ring from being cut by the burrs of the connecting port 15 during movement, thereby affecting the sealing; at the same time, it can prevent the circulation sealing ring 42 and the end sealing ring from being moved due to the uneven local force of the notch, which leads to an increase in the force required to move the valve core 2.

[0065] Based on the above embodiment, all valve body interfaces can be arranged on the same side of the valve body 1, that is, all valve body interfaces are arranged on a straight line. Multiple valve body interfaces can also be arranged along the circumference of the valve body, that is, multiple valve body interfaces are on the same circumference.

[0066] As an optional solution, multiple valve body interfaces are arranged at intervals along the length direction of the valve body, and multiple valve body interfaces are also arranged at intervals on the valve body 1 along the circumference direction of the valve body 1 (it should be noted that the circumference direction is not the circumferential direction in a narrow sense, but the direction around the side wall of the valve body 1 in a broad sense. For example, when the cross section of the valve body 1 is a quadrilateral, its circumference is the direction around the four sides of the quadrilateral), that is, multiple valve body interfaces are distributed on different sides of the valve body 1. Among all the valve body interfaces, multiple valve body interfaces can be located in the same straight line, and multiple valve body interfaces are not located in the same circumference; or, multiple valve body interfaces can be located in a straight line, and multiple valve body interfaces are arranged on the same circumference, etc. This arrangement can shorten the length setting of the valve body 1, making the sliding multi-way valve more stable and smaller in size.

[0067] like Figures 4 to 11 As shown, on the basis of the above embodiment, further, the installation cavity includes a guide cavity 12 and a flow cavity 11 which are interconnected; the multiple valve body interfaces include a guide portion interface 14 which is connected to the guide cavity 12 and a flow portion interface 13 which is connected to the flow cavity 11; a plurality of flow portion interfaces 13 are arranged at intervals along the length direction and circumference of the valve body 1; the multiple valve core flow ports include a flow portion flow port 23 and a guide portion flow port 22 which are both connected to the inner channel 21; a plurality of flow portion flow ports 23 are arranged at intervals along the length direction and circumference of the valve core 2; the guide portion interface 14 and the guide portion flow port 22 are always connected.

[0068] The guide interface 14 may be arranged on the side of the guide cavity 12 , and the guide flow port 22 may be arranged on one end of the valve core 2 close to the guide cavity 12 or on the side of the valve core 2 close to the guide cavity 12 .

[0069] It can also be arranged that the guide part interface 14 is arranged at the end of the guide cavity 12 away from the flow cavity 11, and the guide part flow port 22 is arranged at the end of the valve core 2 close to the guide cavity 12 or at the side of the valve core 2 close to the guide cavity 12.

[0070] On the basis of the above embodiment, further, the diameter of the installation cavity can be set to be equal along the length direction of the valve body, and the cross-sectional area of ​​the upper part of the valve core 2 can be set to be smaller than the cross-sectional area of ​​the installation cavity, and the cross-sectional area of ​​the lower part of the valve core 2 can be equal to the cross-sectional area of ​​the installation cavity, so that a flow channel 3 is formed between the upper part of the valve core 2 and the valve body 1, and the lower part of the valve core 2 can be guided by the installation cavity.

[0071] Alternatively, if Figure 4 and Figure 5 As shown, the end of the flow cavity 11 away from the guide cavity 12 is set through the valve body 1, and the end of the guide cavity 12 away from the flow cavity 11 is set through the valve body 1. The through opening of the guide cavity 12 forms a guide part interface 14. In the length direction of the valve body 1, the installation cavity is set through the valve body 1, so as to facilitate the installation of the valve core 2; the valve core 2 includes a flow section 24 and a connecting section 25 connected to each other; the inner channel 21 is set on the flow section 24, and the inner channel 21 is set through the end of the flow section 24 close to the guide part interface 14, and the opening of the inner channel 21 forms a guide part flow opening 22, so that the guide part interface 14 and the guide part flow opening 22 are on the same line, so that the fluid can flow out quickly; one end of the connecting section 25 passes through the through opening of the flow cavity 11 and extends out of the valve body 1; the sliding multi-way valve also includes a pressing plate 5, which is set on the outer wall of the valve body 1 and connected to the end of the connecting section 25 extending out of the valve body 1. The actuator can be connected to the end of the connecting section extending out of the valve body 1.

[0072] Specifically, Figure 7 As shown, the pressure plate 5 is provided with a through hole 51 and a connecting hole 52 (a corresponding matching hole is provided on the valve body 1), and the connecting hole 52 is located on one side of the through hole 51; a boss 53 is provided at the edge of the through hole 51, and the boss 53 is inserted into the through opening of the flow cavity 11.

[0073] In this embodiment, the fastener is tightened in the connecting hole 52 and the matching hole, so as to fix the pressing piece to one end of the valve body 1. The boss 53 is inserted into the through hole of the flow cavity 11, so as to position the pressing piece.

[0074] As an alternative, Figures 1 to 11As shown, along the circumference of the valve body 1, the valve body 1 includes a first side and a second side arranged at intervals; the multiple flow-through interfaces 13 include N first side interfaces 131 and N-1 second side interfaces 132; along the length direction of the valve body 1, the N first side interfaces 131 are arranged at intervals, the N-1 second side interfaces 132 are arranged at intervals, and a second side interface 132 is provided between two adjacent first side interfaces 131; in the length direction of the valve core 2, two flow-through openings 23 are respectively arranged at both ends of the valve core 2; the number of flow channels 3 is N-1; the actuator drives the valve core 2 to move along the length direction of the installation cavity, thereby connecting the first side interface 131 at one end with a flow-through opening 23 at the corresponding end; the N-1 first side interfaces 131 are connected one-to-one with the N-1 second side interfaces 132 through the N-1 flow channels 3.

[0075] Specifically, along the length direction of the circulation cavity 11, multiple circulation part interfaces 13 are spaced apart from the first end 17 of the valve body 1 to the second end 18 of the valve body 1. Specifically, the circulation part interface 13 closest to the first end 17 is the first circulation part interface, and the circulation part interface 13 closest to the second end 18 is the last circulation part interface; the circulation part flow port 23 close to the first end 17 can be connected to the first circulation part interface 13, and the circulation part flow port 23 close to the second end 18 can be connected to the second circulation part interface 13.

[0076] In this embodiment, one of the two circulation openings 23 of the circulation part is a first circulation opening 231, and the other is a second circulation opening 232. The first circulation opening 231 is arranged near the first end 17, and the second circulation opening 232 is arranged near the second end 18. By driving the valve core 2 to move in the installation cavity by the actuator, the first circulation opening 231 can be communicated with the first circulation part interface 13, and the second circulation opening 232 can be communicated with the last circulation part interface 13. Such a setting can make the structure of the sliding multi-way valve simple, thereby making the control process simple.

[0077] N can be set according to the circulation function to be achieved.

[0078] For example: Figure 8 and Fig. 9As shown, N is 2, that is, the number of the first side interfaces 131 is two, the number of the second side interfaces 132 is one; the number of the circulation channel is one, and two local seals 4 are provided between the two circulation ports 23 of the circulation part. Among them, the first side interface 131 close to the first end 17 of the circulation cavity 11 is the first interface 1311, and the other is the second interface 1312; the local seal 4 close to the first end is the first local seal 43, and the other is the second local seal 44. Specifically, the first interface 1311 is connected to the circulation channel 3 through the first communication port 15 and the first annular groove 16, the second interface 1312 is connected to the circulation channel 3 through the second communication port 15 and the second annular groove 16, and the second side interface 132 is connected to the circulation channel 3 through the third communication port 15 and the third annular groove 16.

[0079] In the first mode: the first interface 1311 is connected to the first circulation port 231, the first local seal 43 is located on the side of the first interface 1311 away from the first end 17, and the second local seal 44 is located on the side of the second interface 1312 away from the first end 17; the first fluid can flow through the first interface 1311, the first connecting port 15, the first annular groove 16, the circulation channel 3, the first side circulation port, the inner channel 21, the guide portion circulation port 22 and the guide portion interface 14; the second fluid can be connected through the second interface 1312, the second connecting port 15, the second annular groove 16, the circulation channel 3, the third annular groove 16, the third connecting port 15 and the outlet side interface.

[0080] In the second mode: the second interface 1312 is connected to the second circulation part circulation port 232, the first local seal 43 is located on the side of the first interface 1311 close to the first end 17, and the second local seal 44 is located on the side of the second interface 1312 close to the first end 17; the first fluid can flow through the second interface 1312, the second connecting port 15, the second annular groove 16, the circulation channel 3, the second side circulation port, the inner channel 21, the guide part circulation port 22 and the guide part interface 14; the second fluid can be connected through the first interface 1311, the first connecting port 15, the first annular groove 16, the circulation channel 3, the first annular groove 16, the first connecting port 15 and the outlet side interface.

[0081] Another example: Fig.10 and Fig.11As shown, N is 3, the number of sides of the first side interface 131 is three, the number of the second side interface 132 is two; the number of the circulation channels is two, and three local seals 4 can be arranged between the two circulation openings 23. Among them, the first side interface 131 close to the first end 17 is the first interface 1311, the first side interface 131 located in the middle is the second interface 1312, and the first side interface 131 close to the second end 18 of the valve body 1 is the third interface 1313; the circulation opening 23 close to the first end 17 is the first circulation opening 231, and the other circulation opening 23 is the second circulation opening 232; the local seal 4 close to the first circulation opening 231 is the first local seal 43, the local seal 4 located in the middle is the second local seal 44, and the local seal 4 close to the second circulation opening 232 is the third local seal 45; the second side interface 132 close to the first end 17 of the circulation cavity 11 is the fourth interface 1321, and the other is the fifth interface 1322. Of the two circulation channels, the one close to the first end is the first circulation channel, and the one relatively far from the first end is the second circulation channel (it can be understood that when there are multiple circulation channels, the multiple circulation channels are arranged along the length direction of the valve core), the first circulation channel is between the first partial seal 43 and the second partial seal 44, and the second circulation channel is between the second partial seal 44 and the third partial seal 45. Specifically, the first interface 1311 is connected to the circulation channel 3 through the first communication port and the first annular groove, the second interface 1312 is connected to the circulation channel 3 through the second communication port and the second annular groove, the third interface 1313 is connected to the circulation channel 3 through the third communication port and the third annular groove, the fourth interface 1321 is connected to the circulation channel 3 through the fourth communication port and the fourth annular groove, and the fifth interface 1322 is connected to the circulation channel 3 through the fifth communication port and the fifth annular groove.

[0082] In the first mode: Fig.10As shown, the first circulation part circulation port 231 is connected with the first interface 1311, the first partial seal 43 is located on the side of the first interface 1311 away from the first end 17 of the circulation chamber 11, the second partial seal 44 is located on the side of the second interface 1312 away from the first end 17 of the circulation chamber 11, and the third partial seal 45 is located on the side of the third interface 1313 away from the first end 17 of the circulation chamber 11. The first fluid can circulate through the first interface 1311, the first communication port, the first annular groove, the first circulation channel, the first circulation part circulation port 231, the inner channel 21, the guide part circulation port 22 and the guide part interface 14. The second fluid can circulate through the second interface 1312, the second communication port, the second annular groove, the first circulation channel, the fourth annular groove, the fourth communication port and the fourth interface 1321. The third fluid can circulate through the third interface 1313, the third communication port, the third annular groove, the second circulation channel, the fifth annular groove, the fifth communication port and the fifth interface 1322.

[0083] In the second mode: the second circulation part circulation port 232 is connected to the third interface 1313, the first partial seal 43 is located on the side of the first interface 1311 close to the first end 17 of the circulation chamber 11, the second partial seal 44 is located on the side of the second interface 1312 close to the first end 17 of the circulation chamber 11, and the second partial seal 44 is located on the side of the third interface 1313 close to the first end 17 of the circulation chamber 11. The first fluid can flow through the third interface 1313, the third communication port, the third annular groove, the second circulation part circulation port 232, the inner channel 21, the guide part circulation port 22 and the guide part interface 14. The second fluid can flow through the second interface 1312, the second communication port, the second annular groove, the second circulation channel, the fifth annular groove, the fifth communication port and the fifth interface 1322. The third fluid can flow through the first interface 1311, the first communication port, the first annular groove, the first circulation channel, the fourth annular groove, the fourth communication port and the third interface 1313.

[0084] like Fig.12 and Fig.13 As shown, on the basis of the above embodiment, further, a partition is provided in the inner channel 21, and the partition divides the inner channel 21 into a plurality of sub-channels, and the plurality of sub-channels are arranged in sequence along the circumference of the valve core 2; along the length direction of the valve core 2, at least some of the sub-channels are connected with a plurality of valve core flow ports arranged at intervals; among the plurality of valve body interfaces, at least some of the valve body interfaces are arranged on the side of the valve body 1 corresponding to the valve core flow ports, and are arranged at intervals along the length direction of the valve body 1; the actuator drives the valve core 2 to move along the length direction of the installation cavity, thereby correspondingly connecting at least two valve body interfaces with two valve core flow ports connected to the same sub-channel, and / or connecting the flow channel 3 to at least two valve body interfaces.

[0085] In this embodiment, a plurality of sub-channels are provided in the valve core 2, thereby realizing more fluid control functions.

[0086] For example, Fig.12 and Fig.13 As shown, the plurality of sub-channels include a first sub-channel 211 and a second sub-channel 212. The first sub-channel 211 is connected with two valve core flow ports, one is the first flow port 233, and the other is the second flow port 234. The second sub-channel 212 is connected with two valve core flow ports, one is the third flow port 235, and the other is the fourth flow port 236. There are six valve body interfaces, namely the first valve body interface 133, the second valve body interface 134, the third valve body interface 135, the fourth valve body interface 136, the fifth valve body interface 137, and the sixth valve body interface 138. The first valve body interface 133, the second valve body interface 134, and the third valve body interface 135 are located on the same side, corresponding to the side where the first flow port 233 and the second flow port 234 are located. The fourth valve body interface 136 and the fifth valve body interface 137 are located on the same side, and correspond to the side where the third flow port 235 and the fourth flow port 236 are located. There are two circulation channels (the dotted lines in the figure indicate the outer channels), the circulation channel close to the actuator (ie the first end) is the first circulation channel, and the other is the second circulation channel.

[0087] At least the following patterns can be implemented:

[0088] First working mode: Fig.12 As shown, the first valve body interface 133 and the fourth valve body interface 136 are connected through the first circulation channel, the second valve body interface 134 and the third valve body interface 135 are connected through the first circulation port 233, the first branch channel 211 and the second circulation port 234, and the fifth valve body interface 137 and the sixth valve body interface 138 are connected through the third circulation port 235, the second branch channel 212 and the fourth circulation port 236.

[0089] Second working mode: Fig.13 As shown, the first valve body interface 133 and the fourth valve body interface 136 are communicated through a first circulation channel, and the third valve body interface 135 and the fifth valve body interface 137 are communicated through a second circulation channel.

[0090] It should be noted that the number of sub-channels can be set according to the number of valve body interfaces and the purpose of fluid control, for example: two, three or four, etc. Similarly, the number of flow channels can be set according to the specific control purpose.

[0091] The present invention further provides a fluid management system, comprising a sliding multi-way valve and a pipeline according to any of the above technical solutions; the valve body 1 is integrally formed on the pipeline, so that the fluid management system has a compact structure.

[0092] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention. In the description provided herein, a large number of specific details are described. However, it can be understood that the embodiments of the present invention can be practiced without these specific details. In some examples, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description. In addition, those skilled in the art can understand that although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments means being within the scope of the present invention and forming different embodiments.

Claims

1. A sliding multi-way valve, characterized in that: include: A valve body, wherein the valve body is provided with a mounting cavity and a valve body interface communicating with the mounting cavity; A valve core is slidably disposed in the installation cavity; the valve core is provided with an inner channel and a plurality of valve core flow ports communicating with the inner channel; A circulation channel is provided between the valve body and the valve core; two different valve body interfaces can be connected through the same circulation channel to form an outer passage; two different valve body interfaces can be connected through two different valve core circulation ports to form an inner passage; An actuator is drivingly connected to the valve core; the actuator can drive the valve core to move along the length direction of the installation cavity to realize different outer passages and different inner passages.

2. The sliding multi-way valve according to claim 1, characterized in that: The sliding multi-way valve further includes a sealing member located between the valve body and the valve core so as to at least prevent leakage of the fluid in the flow channel; The sealing member is an integral sealing member, and a first groove is provided on the inner wall or the outer wall of the sealing member, the first groove forms the circulation channel, and a through hole is provided on the first groove for communicating with the valve body interface.

3. The sliding multi-way valve according to claim 1, characterized in that: The sliding multi-way valve further includes a sealing member located between the valve body and the valve core so as to at least prevent leakage of the fluid in the flow channel; A gap is provided between the inner wall of the valve body and the outer wall of the valve core; the sealing member comprises a plurality of partial sealing members spaced apart along the length direction of the valve body, and the flow channel is formed between the inner wall of the valve body, the outer wall of the valve core and the partial sealing members; Alternatively, a second groove is provided on at least one of the inner wall of the valve body and the outer wall of the valve core, and the second groove forms the circulation channel; the sealing member includes a plurality of local sealing members spaced apart along the length direction of the valve body, and the circulation channel is formed between the inner wall of the valve body, the outer wall of the valve core and the local sealing members.

4. The sliding multi-way valve according to claim 3, characterized in that: A plurality of partial sealing members are arranged on the inner wall of the valve body along the length direction of the valve body.

5. The sliding multi-way valve according to claim 3, characterized in that: A plurality of partial sealing members are arranged on the inner wall of the valve core along the length direction of the valve core.

6. The sliding multi-way valve according to claim 3, characterized in that: The local sealing element comprises an annular circulation installation block and a circulation sealing ring, the annular circulation sealing block is provided with an annular circulation installation groove, and the circulation sealing ring is installed in the annular circulation installation groove; The annular flow installation block is fixed on the outer wall of the valve core.

7. The sliding multi-way valve according to claim 3, characterized in that: Along the length direction of the valve body, a plurality of annular grooves are provided on the inner wall of the valve body, and a plurality of communication ports for connecting the valve body interface with the installation cavity are arranged in the plurality of annular grooves in a one-to-one correspondence.

8. The sliding multi-way valve according to any one of claims 2 to 7, characterized in that: Along the circumferential direction and the length direction of the valve body, a plurality of valve body interfaces are arranged at intervals on the valve body.

9. The sliding multi-way valve according to claim 8, characterized in that: The installation cavity includes a guide cavity and a flow cavity which are interconnected; the plurality of valve body interfaces include a guide portion interface which is connected to the guide cavity and a flow portion interface which is connected to the flow cavity; a plurality of flow portion interfaces are arranged at intervals along the length direction and the circumference direction of the valve body; The multiple valve core flow openings include a flow portion flow opening and a guide portion flow opening both of which are connected to the inner channel; multiple flow portion flow openings are spaced apart along the length direction and circumferential direction of the valve core; the guide portion interface and the guide portion flow opening are always connected.

10. The sliding multi-way valve according to claim 9, characterized in that: The guide part interface is arranged on the side of the guide cavity, and the guide part flow port is arranged on one end of the valve core close to the guide cavity or on the side of the valve core close to the guide cavity; And / or, the guide part interface is arranged at an end of the guide cavity away from the flow cavity, and the guide part flow port is arranged at an end of the valve core close to the guide cavity or at a side of the valve core close to the guide cavity.

11. The sliding multi-way valve according to claim 9, characterized in that: Along the circumference of the valve body, the valve body includes a first side and a second side arranged at intervals; the plurality of the flow portion interfaces include N first side interfaces and N-1 second side interfaces; along the length direction of the valve body, the N first side interfaces are arranged at intervals, the N-1 second side interfaces are arranged at intervals, and one second side interface is provided between two adjacent first side interfaces; In the length direction of the valve core, the two flow openings of the flow portion are respectively arranged at two ends of the valve core; The number of the circulation channels is N-1; The actuator drives the valve core to move along the length direction of the installation cavity, thereby connecting the first side interface located at one end with a flow port of the flow portion at the corresponding end; N-1 first side interfaces are connected one-to-one with N-1 second side interfaces through N-1 flow channels.

12. The sliding multi-way valve according to any one of claims 2 to 7, characterized in that: A partition is provided in the inner channel, and the partition divides the inner channel into a plurality of sub-channels, and the plurality of sub-channels are sequentially arranged along the circumference of the valve core; Along the length direction of the valve core, at least part of the sub-channels are connected to a plurality of valve core flow openings arranged at intervals; Among the plurality of valve body interfaces, at least some of the valve body interfaces are arranged on a side of the valve body corresponding to the valve core flow port, and are arranged at intervals along the length direction of the valve body; The actuator drives the valve core to move along the length direction of the installation cavity, thereby correspondingly connecting at least two of the valve body interfaces with two valve core flow ports connected to the same branch channel, and / or connecting the flow channel to at least two of the valve body interfaces.

Images