control valve

Abstract

This application discloses a control valve. The valve core of the control valve includes multiple conductive cavity structures and a first partition. The first partition is located between two adjacent conductive cavity structures. Each conductive cavity structure includes an inner conductive cavity, an outer conductive cavity, a second partition, and a third partition. The inner conductive cavity is located inside the outer conductive cavity, the second partition is located between the inner conductive cavity and the outer conductive cavity, and the third partition is located between two adjacent outer conductive cavities. In each conductive cavity structure, the outer conductive cavity includes a first outer conductive cavity and a second outer conductive cavity. The inner conductive cavity is connected to the corresponding first outer conductive cavity through a connecting hole on the second partition. Rotating the valve core to the area corresponding to the connecting port of any conductive cavity structure can connect two or three corresponding connecting ports through the inner conductive cavity, the connecting hole, and the first outer conductive cavity, and also connect two or three corresponding connecting ports through the second outer conductive cavity. This enables fluid control of multiple flow paths.

Description

Technical Field

[0001] This invention relates to the field of fluid control technology, and more specifically to a control valve. Background Technology

[0002] Some systems require multi-channel control valves to control flow paths, such as motor vehicles. Currently, multiple control valves are typically used for control. If a single control valve could be provided to control the fluid in multiple flow paths, it would be more convenient and compact to use. Summary of the Invention

[0003] The purpose of this invention is to provide a control valve that enables fluid control of multiple flow paths, making it more convenient and compact to use.

[0004] This invention provides a control valve, including a valve body and a valve core. The valve body includes a side wall portion. The control valve has a valve cavity. The side wall portion is the peripheral wall of the valve cavity or at least a part of the peripheral wall. The valve core is rotatable under a drive. The control valve has at least five channels. One end of each channel passes through the side wall portion to form a communication port, which communicates with the valve cavity. The valve core includes multiple conductive cavity structures and multiple first partitions. The multiple conductive cavity structures extend along the height direction of the valve core and are arranged along the circumferential direction of the valve core. A first partition is provided between every two adjacent conductive cavity structures, and the first partition isolates the conductive cavity structures. Each conductive cavity structure includes an internal conductive cavity, multiple external conductive cavities, a second partition, and a third partition. The multiple external conductive cavities are arranged along the height direction of the valve core. The second partition is located between the internal conductive cavity and the external conductive cavity. Along the radial direction of the valve core, the second partition is located outside the internal conductive cavity, and the third partition is located between two adjacent external conductive cavities.

[0005] In each of the aforementioned conductive cavity structures, the external conductive cavity is isolated by the third partition. The external conductive cavity includes a first external conductive cavity and a second external conductive cavity. The second partition has at least two connecting holes. The internal conductive cavity communicates with the corresponding first external conductive cavity through the connecting holes. The second external conductive cavity and the internal conductive cavity are isolated by the second partition.

[0006] The connecting ports on the side wall are arranged along the height direction of the control valve. When the valve core is rotated, the corresponding area of ​​any of the connecting cavity structures can be connected through the internal connecting cavity, the connecting hole, and the first external connecting cavity to the corresponding two or three connecting ports, and the corresponding two or three connecting ports can be connected through the second external connecting cavity.

[0007] According to an embodiment of the present invention, the control valve core includes multiple conductive cavity structures. These conductive cavity structures extend along the height direction of the valve core and are arranged along the circumferential direction of the valve core. Each conductive cavity structure is separated into independent structures by a first partition. Each conductive cavity structure includes an internal conductive cavity, multiple external conductive cavities, a second partition, and a third partition. The second partition is located between the internal and external conductive cavities. The external conductive cavities include a first external conductive cavity and a second external conductive cavity. The second partition has a communication hole, allowing the internal conductive cavity to communicate with the corresponding first external conductive cavity. The second external conductive cavity and the internal conductive cavity are separated by the second partition. The independent space ensures no fluid flow between the second external and internal conductive cavities. In this invention, the connecting ports on the valve body are arranged along the height of the control valve and correspond to the conductive cavity structure. This allows the valve core to be rotated to any area of ​​the conductive cavity structure corresponding to the connecting port, enabling the connection of two or three corresponding connecting ports through the internal conductive cavity, the connecting hole, and the first external conductive cavity. The second external conductive cavity then connects the two or three corresponding connecting ports. This allows the control valve to have different connection methods between multiple connecting ports, enabling one control valve to control multiple flow paths, making it more convenient and compact in use. Attached Figure Description

[0008] Figure 1 This is a partial structural schematic diagram of a control valve provided in one embodiment of the present invention;

[0009] Figure 2 This is a partial structural diagram of the valve core and valve body provided in one embodiment of the present invention;

[0010] Figure 3 yes Figure 2 A schematic diagram of a cross-sectional structure of the valve core is shown in the figure;

[0011] Figure 4 This is a partial cross-sectional view of the first conductive structure provided in one embodiment of the present invention;

[0012] Figure 5 This is a schematic block diagram of the connection method of the control valve in the first working mode according to an embodiment of the present invention;

[0013] Figure 6 This is a partial cross-sectional view of the second conductive structure provided in one embodiment of the present invention;

[0014] Figure 7 This is a schematic block diagram illustrating the connection method of the control valve's connection port in the second working mode according to an embodiment of the present invention;

[0015] Figure 8 This is a partial cross-sectional view of the third conductive structure provided in one embodiment of the present invention;

[0016] Figure 9 This is a schematic block diagram illustrating the connection method of the control valve in the third working mode according to an embodiment of the present invention;

[0017] Figure 10 This is a partial cross-sectional view of the fourth conductive structure provided in one embodiment of the present invention;

[0018] Figure 11 This is a schematic block diagram illustrating the connection method of the control valve in the fourth working mode according to an embodiment of the present invention;

[0019] Figure 12 This is a partial cross-sectional view of the fifth conductive structure provided in one embodiment of the present invention;

[0020] Figure 13 This is a schematic block diagram illustrating the connection method of the control valve's connection port in the fifth operating mode according to an embodiment of the present invention;

[0021] Figure 14 This is a partial cross-sectional view of the sixth conductive structure provided in one embodiment of the present invention;

[0022] Figure 15 This is a schematic block diagram illustrating the connection method of the control valve in the sixth working mode according to an embodiment of the present invention;

[0023] Figure 16 This is a partial cross-sectional view of the seventh conduction structure provided in one embodiment of the present invention;

[0024] Figure 17 This is a schematic block diagram illustrating the connection method of the control valve in the seventh working mode according to an embodiment of the present invention;

[0025] Figure 18 This is a partial cross-sectional view of the eighth conductive structure provided in one embodiment of the present invention;

[0026] Figure 19 This is a schematic block diagram illustrating the connection method of the control valve in the eighth working mode according to an embodiment of the present invention. Detailed Implementation

[0027] The features and exemplary embodiments of various aspects of the present invention will now be described in detail. To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. In this document, relational terms such as "first" and "second" are used merely to distinguish one component from another that has the same name, and do not necessarily require or imply any such actual relationship or order between these components.

[0028] like Figures 1 to 3 As shown, this embodiment of the invention provides a control valve 1, including a valve body 10 and a valve core 20. The valve body 10 includes a side wall portion 11. The control valve 1 has a valve cavity 101. The side wall portion 11 is the peripheral wall of the valve cavity 101 or at least a part of the peripheral wall. The control valve 1 also includes a seal and a drive device. The seal is located between the side wall portion 11 and the valve core 20. The drive device includes a drive member, which can be a motor or an assembly formed by a motor and a reduction gear set. The valve core 20 can rotate under the drive of the drive member of the drive device. The control valve 1 has at least five channels 102. One end of each channel 102 penetrates the side wall portion 11 to form a communication port 111. The communication ports 111 of the side wall portion 11 are arranged along the height direction of the control valve 1. Each communication port 111 communicates with the valve cavity 101. When the control valve 1 has a valve port 103, the other end of the channel 102 can penetrate the outer surface of the control valve 1 to form a valve port 103, and fluid can enter or leave the control valve 1 from the valve port 103. In this embodiment of the invention, the control valve 1 may have nine channels 102, and correspondingly, the control valve 1 has nine valve ports 103. The nine valve ports 103 may be arranged in a row along the height direction of the control valve 1. The nine channels 102 penetrate the side wall portion 11 to form nine connecting ports 111. The nine connecting ports 111 are arranged in a row along the height direction of the control valve 1. Optionally, the nine valve ports 103 may also be set according to the user's needs, such as the valve ports 103 being arranged along the circumferential direction of the side wall portion 11. The present invention does not limit this.

[0029] Further reading Figures 2 to 4 The valve core 20 includes multiple conductive cavity structures 21 and multiple first partitions 22. The main body of each conductive cavity structure 21 has a fan-shaped cross-section, where the cross-section is obtained by cutting the conductive cavity structure 21 along a direction perpendicular to the height of the valve core 20. The multiple conductive cavity structures 21 extend along the height direction of the valve core 20 and are arranged along the circumference of the valve core 20, such as... Figure 2 and Figure 3As shown, the valve core 20 of this embodiment may include eight conducting cavity structures 21, namely a first conducting cavity structure S11, a second conducting cavity structure S12, a third conducting cavity structure S13, a fourth conducting cavity structure S14, a fifth conducting cavity structure S15, a sixth conducting cavity structure S16, a seventh conducting cavity structure S17, and an eighth conducting cavity structure S18. A first partition 22 is provided between each two adjacent conducting cavity structures 21. The first partition 22 divides the conducting cavity structure 21 into independent structures, so that fluid does not flow between two adjacent conducting cavity structures 21. Each conductive cavity structure 21 includes an inner conductive cavity 211, multiple outer conductive cavities 212, a second partition 213, and a third partition 214. The multiple outer conductive cavities 212 are arranged along the height direction of the valve core 20, and are recessed from the outer peripheral surface of the valve core 20 towards its interior. In this case, the arrangement direction of the multiple outer conductive cavities 212 in each conductive cavity structure 21 is the same as the arrangement direction of the connecting ports 111, facilitating the connection of each conductive cavity structure 21 to the corresponding connecting port 111. The inner conductive cavity 211 is located inside the outer conductive cavities 212. The second partition 213 is located between the inner conductive cavity 211 and the outer conductive cavities 212, and the third partition 214 is located between two adjacent outer conductive cavities 212. In each conductive cavity structure 21, the outer conductive cavities 212 are separated into independent spaces by the third partition 214. Figures 2 to 4 As shown, the external conducting cavity 212 includes a first external conducting cavity EC1 and a second external conducting cavity EC2. The second partition 213 has at least two connecting holes 2131. The internal conducting cavity 211 communicates with the corresponding two first external conducting cavities EC1 through the connecting holes 2131, enabling fluid flow between the internal conducting cavity 211 and the first external conducting cavities EC1. The second external conducting cavity EC2 and the internal conducting cavity 211 are separated into independent spaces by the second partition 213, preventing fluid flow between the second external conducting cavity EC2 and the internal conducting cavity 211. In a specific implementation, as... Figure 4 As shown, the second partition 213 forms the cavity wall portion of the external conductive cavity 212. Correspondingly, the second partition 213 has a connecting hole 2131 at the cavity wall portion forming the first external conductive cavity EC1 to connect a portion of the internal conductive cavity 211 and the first external conductive cavity EC1. The second partition 213 has no through hole structure at the cavity wall portion forming the second external conductive cavity EC2 to separate the second external conductive cavity EC2 and the internal conductive cavity 211 into independent spaces.

[0030] Since the arrangement direction of the multiple external conductive cavities 212 in each conductive cavity structure 21 corresponds to the arrangement direction of the connecting ports 111, the valve core 20 can be rotated to any area of ​​the conductive cavity structure 21 corresponding to the connecting port 111, and can connect the corresponding two or three connecting ports 111 through the internal conductive cavity 211, the connecting hole 2131, and the first external conductive cavity EC1. This allows the corresponding valve port 103 to be connected through the connecting port 111, and the corresponding two or three connecting ports 111 to be connected through a second external conductive cavity EC2. With the above configuration, a single control valve 1 can achieve the connection and / or cutoff between multiple different connecting ports 111 and valve ports 103, thus controlling multiple flow paths.

[0031] like Figure 1 and Figure 5 In some embodiments, the control valve 1 has 2n+1 channels 102. Rotating the valve core 20 to any area corresponding to the connecting port 111 through the internal connecting cavity 211 and the external connecting cavity 212 of the valve core 20 can form n conductive flow paths. The conductive flow paths include a first flow path and n-1 second flow paths. The first flow path includes three conductive channels 102, that is, the first flow path can realize the conduction of three connecting ports 111. The second flow path includes two conductive channels 102, that is, the second flow path can realize the conduction of two connecting ports 111, where n is a positive integer greater than or equal to 2. Through the above configuration, the control valve 1 can realize the flow path formed by two valve ports 103 and the flow path formed by three valve ports 103. When the control valve 1 is applied to the fluid control system, it can better meet the needs of the fluid control system.

[0032] like Figure 6 As shown, the valve core 20 includes a top plate 23 and a bottom plate 24, which are arranged along the height direction of the valve core 20. The top plate 23 forms the top wall of the conduction cavity structure 21, and the bottom plate 24 forms the bottom wall of the conduction cavity structure 21. The internal conduction cavity 211 and the external conduction cavity 212 of the conduction cavity structure 21 are both located between the top plate 23 and the bottom plate 24. Along the height direction of the valve core 20, the orthographic projection of the top plate 23 and the orthographic projection of the bottom plate 24 both cover the orthographic projections of the internal conduction cavity 211 and the external conduction cavity 212. With the above arrangement, when the fluid flows into the control valve 1, each flow path is located inside the valve core 20, which facilitates the orderly flow of the fluid.

[0033] Furthermore, such as Figure 2 and Figure 6As shown, the valve core 20 also includes a connecting post 25. The area between the outer surface of the connecting post 25 and the inner surface of the second partition 213 is the area where the internal conduction cavity 211 is located. Along the radial direction of the valve core 20, the first partition 22 extends from the outer surface of the connecting post 25 in a direction away from the connecting post 25, and the outer surface of the first partition 22 in the radial direction forms part of the outer surface of the valve core 20. The first partition 22, the second partition 213, the third partition 214 and the connecting post 25 are fixedly connected into an integral structure by injection molding, which facilitates the improvement of the structural strength of the valve core 20. Furthermore, the top plate 23 and the bottom plate 24 of the valve core 20 can also be fixedly connected to the first partition 22, the second partition 213, the third partition 214 and the connecting post 25 into an integral structure.

[0034] Since the connecting ports 111 of the control valve 1 are arranged in a row along the height direction of the control valve 1, and the external connecting chambers 212 of each connecting chamber structure 21 are arranged along the height direction of the control valve 1, each external connecting chamber 212 can connect one, two, or three corresponding valve ports 103. In order to achieve the connection of two or three valve ports 103 with a large interval, in some embodiments, such as Figure 6 As shown, the conduction cavity structure 21 includes a first structure S1, which includes two internal conduction cavities 211, namely a first internal conduction cavity IC1 and a second internal conduction cavity IC2. Along the radial direction of the valve core 20, the first internal conduction cavity IC1 is located between the external conduction cavity 212 and the second internal conduction cavity IC2. The control valve also includes a fifth partition 215, which is located between the first internal conduction cavity IC1 and the second internal conduction cavity IC2 to separate the first internal conduction cavity IC1 and the second internal conduction cavity IC2 into independent spaces. At this time, the first external conduction cavity EC1, which is connected to the internal conduction cavity 211, includes a first cavity EC11 and a second cavity EC12. The first internal conduction cavity IC1 is connected to the two corresponding first cavities EC11 through the connecting hole 2131, and the second internal conduction cavity IC2 is connected to the two corresponding second cavities EC12 through the channel 2151 on the fifth partition 215. Accordingly, along the height direction of the valve core 20, at least one second external conductive cavity EC2 is located between the two first cavities EC11 corresponding to the first internal conductive cavity IC1, and the two first cavities EC11 corresponding to the first internal conductive cavity IC1 are located between the two second cavities EC12 corresponding to the second internal conductive cavity IC2. With the above arrangement, the valve core 20 can independently open its corresponding two or three valve ports 103 through the two first cavities EC11, the two second cavities EC12, and the second external conductive cavity EC2.

[0035] Further reading Figure 8As shown, in some embodiments, the conduction cavity structure 21 further includes a second structure S2, which includes an internal conduction cavity 211. The internal conduction cavity 211 is connected to two corresponding first external conduction cavities EC1. Along the height direction of the valve core 20, there is at least one second external conduction cavity EC2 between the two first external conduction cavities EC1 that are connected to the internal conduction cavity 211.

[0036] Or, such as Figure 4 As shown, in some embodiments, the conduction cavity structure 21 further includes a third structure S3, which includes two internal conduction cavities 211. The fifth partition 215 of the control valve is also located between two adjacent internal conduction cavities 211. The two internal conduction cavities 211 are respectively the third internal conduction cavity IC3 and the fourth internal conduction cavity IC4. Along the radial direction of the valve core 20, the third internal conduction cavity IC3 is located between the external conduction cavity 212 and the fourth internal conduction cavity IC4. At this time, the third internal conduction cavity IC3 is connected to the corresponding two first external conduction cavities EC1. The third internal conduction cavity IC3 and the fourth internal conduction cavity IC4 are independent spatial structures, or both the third internal conduction cavity IC3 and the fourth internal conduction cavity IC4 are connected to the two first external conduction cavities EC1. Along the height direction of the valve core 20, there is at least one second external conduction cavity EC2 between the two first external conduction cavities EC1 that are connected to the internal conduction cavity 211. In specific implementation, as shown... Figure 4 As shown, the present invention can be configured to connect the third internal conductive cavity IC3 with the two corresponding first external conductive cavities EC1, and the third internal conductive cavity IC3 and the fourth internal conductive cavity IC4 are independent spatial structures.

[0037] Combination Figures 1 to 19 As shown, in some embodiments, the control valve 1 has nine channels 102, and the valve core 20 includes eight conduction structures 21, namely, a first conduction structure S11, a second conduction structure S12, a third conduction structure S13, a fourth conduction structure S14, a fifth conduction structure S15, a sixth conduction structure S16, a seventh conduction structure S17 and an eighth conduction structure S18 arranged sequentially along the circumferential direction of the valve core 20.

[0038] The first conducting structure S11 can be a second structure or a third structure, specifically, such as Figure 4As shown, the first conducting structure S11 may include two internal conducting cavities 211 and five external conducting cavities 212. The five external conducting cavities 212 include two first external conducting cavities EC1 and three second external conducting cavities EC2. Along the height direction of the valve core 20, two adjacent second external conducting cavities EC2 are located between the two first external conducting cavities EC1, and the other second external conducting cavity EC2 is located at the bottom end of the valve core 20, and the bottom plate 24 of the valve core can form the cavity wall of the second external conducting cavity EC2. Optionally, the first conducting structure S11 may also include only one internal conducting cavity 211.

[0039] like Figure 6 As shown, the second conducting structure S12 can be the first structure. The second conducting structure S12 includes two internal conducting cavities 211 and six external conducting cavities 212. The six external conducting cavities 212 include two first cavities EC11, two second cavities EC12 and two second external conducting cavities EC2. Along the height direction of the valve core 20, the two second external conducting cavities EC2 are adjacent and located between the two first cavities EC11, and the two first cavities EC11 are located between the two second cavities EC12.

[0040] The third conducting structure S13 can be either the second or third structure, specifically, as shown below. Figure 8 As shown, the third conduction structure S13 may include an internal conduction cavity 211 and five external conduction cavities 212. The five external conduction cavities 212 include two first external conduction cavities EC1 and three second external conduction cavities EC2. Along the height direction of the valve core 20, two adjacent second external conduction cavities EC2 are located between the two first external conduction cavities EC1, and the other second external conduction cavity EC2 is located at the top of the valve core 20, and the top plate 23 of the valve core can form the cavity wall of the second external conduction cavity EC2. Optionally, the third conduction structure S13 may also include two internal conduction cavities 211.

[0041] The fourth conducting structure S14 can be a second structure or a third structure, specifically, such as Figure 10 As shown, the fourth conduction structure S14 includes two internal conduction cavities 211 and five external conduction cavities 212. The five external conduction cavities 212 include two first external conduction cavities EC1 and three second external conduction cavities EC2. Along the height direction of the valve core 20, one of the three second external conduction cavities EC2 is located between the two first external conduction cavities EC1, and the other two second external conduction cavities EC2 are adjacent to each other and located near the bottom end of the valve core 20. Optionally, the fourth conduction structure S14 may also include only one internal conduction cavity 211.

[0042] like Figure 12As shown, the fifth conducting structure S15 can be the first structure S1. Specifically, the fifth conducting structure S15 includes two internal conducting cavities 211 and six external conducting cavities 212. The six external conducting cavities 212 include two first cavities EC11, two second cavities EC12 and two second external conducting cavities EC2. Along the height direction of the valve core 20, a second external conducting cavity EC2 is disposed between the two first cavities EC11. The other second external conducting cavity EC2 is located between the first cavity EC11 and the second cavity EC12 and is disposed near the bottom end of the valve core 20. The two second cavities EC12 are respectively disposed at the top and bottom ends of the valve core 20.

[0043] The sixth conducting structure S16 can be a second or third structure, specifically, such as Figure 14 As shown, the sixth conduction structure S16 includes two internal conduction cavities 211 and five external conduction cavities 212. The five external conduction cavities 212 include two first external conduction cavities EC1 and three second external conduction cavities EC2. Along the height direction of the valve core 20, one of the three second external conduction cavities EC2 is located between the two first external conduction cavities EC1, and the other two second external conduction cavities EC2 are respectively located at the top and bottom ends of the valve core 20. Optionally, the sixth conduction structure S16 may also include only one internal conduction cavity 211.

[0044] like Figure 16 As shown, the seventh conduction structure S17 is the first structure S1. The seventh conduction structure S17 includes two internal conduction cavities 211 and six external conduction cavities 212. The six external conduction cavities 212 include two first cavities EC11, two second cavities EC12 and two second external conduction cavities EC2. Along the height direction of the valve core 20, a second external conduction cavity EC2 is disposed between the two first cavities EC11. The other second external conduction cavity EC2 is located between the first cavity EC11 and the second cavity EC12 and is disposed near the top end of the valve core 20. The two second cavities EC12 are respectively disposed at the top and bottom ends of the valve core 20.

[0045] The eighth conducting structure S18 can be a second structure or a third structure, specifically, such as Figure 18 As shown, the eighth conduction structure S18 includes two internal conduction cavities 211 and five external conduction cavities 212. The five external conduction cavities 212 include two first external conduction cavities EC1 and three second external conduction cavities EC2. Along the height direction of the valve core 20, one of the three second external conduction cavities EC2 is located between the two first external conduction cavities EC1, and the other two second external conduction cavities EC2 are adjacent to each other and disposed near the top end of the valve core 20. Optionally, the eighth conduction structure S18 may also include only one internal conduction cavity 211.

[0046] Combination Figure 1 , Figure 2 , Figures 4 to 19 In some embodiments, the control valve 1 has nine channels 102, and the connecting ports 111 formed by the nine channels 102 are respectively the eighth connecting port VP8, the first connecting port VP1, the second connecting port VP2, the third connecting port VP3, the fourth connecting port VP4, the fifth connecting port VP5, the ninth connecting port VP9, ​​the sixth connecting port VP6 and the seventh connecting port VP7 arranged in a row along the height direction of the valve core 20. The eighth connecting port VP8 is located at the top of the control valve 1, and the seventh connecting port VP7 is located at the bottom of the control valve 1. The control valve 1 includes at least one of the first working mode M1, the second working mode M2, the third working mode M3, the fourth working mode M4, the fifth working mode M5, the sixth working mode M6, the seventh working mode M7 and the eighth working mode M8. The eight working modes of the control valve 1 are described in detail below.

[0047] like Figure 4 and Figure 5 As shown, in the first operating mode M1, the valve core 20 rotates to the area corresponding to the first conductive structure S11 and the connecting port. The eighth connecting port VP8 is connected to the fifth connecting port VP5 and / or the ninth connecting port VP9 through the internal conductive cavity 211 and the first external conductive cavity EC1. The first connecting port VP1 and the second connecting port VP2 are connected through one of the second external conductive cavities EC2. The third connecting port VP3 and the fourth connecting port VP4 are connected through another second external conductive cavity EC2. The sixth connecting port VP6 and the seventh connecting port VP7 are connected through yet another second external conductive cavity EC2.

[0048] like Figure 6 and Figure 7 As shown, in the second operating mode M2, the valve core 20 rotates to the area corresponding to the second conduction structure S12 and the connecting port. The eighth connecting port VP8 and the seventh connecting port VP7 are connected through the second internal conducting cavity IC2 and the second cavity EC12. The first connecting port VP1 and the sixth connecting port VP6 are connected through the first internal conducting cavity IC1 and the first cavity EC11. The second connecting port VP2 and the third connecting port VP3 are connected through one of the second external conducting cavities EC2. The fourth connecting port VP4, the fifth connecting port VP5 and the ninth connecting port VP9 are connected through the other second external conducting cavity EC2.

[0049] like Figure 8 and Figure 9As shown, in the third operating mode M3, the valve core 20 rotates to the area corresponding to the third conduction structure S13 and the connecting port. The eighth connecting port VP8 and the first connecting port VP1 are connected through one of the second external conducting chambers EC2. The second connecting port VP2 and the seventh connecting port VP7 are connected through the first external conducting chamber EC1 and the internal conducting chamber 211. The third connecting port VP3 and the fourth connecting port VP4 are connected through another of the second external conducting chambers EC2. The fifth connecting port VP5 and / or the ninth connecting port VP9 and the sixth connecting port VP6 are connected through yet another of the second external conducting chambers EC2.

[0050] like Figure 10 and Figure 11 As shown, in the fourth operating mode M4, the valve core 20 rotates to the area corresponding to the fourth conduction structure S14 and the connecting port 111. The eighth connecting port VP8 and the third connecting port VP3 are connected through the first external conducting cavity EC1 and the internal conducting cavity 211. The first connecting port VP1 and the second connecting port VP2 are connected through one of the second external conducting cavities EC2. The fourth connecting port VP4, the fifth connecting port VP5 and / or the ninth connecting port VP9 are connected through another of the second external conducting cavities EC2. The sixth connecting port VP6 and the seventh connecting port VP7 are connected through yet another of the second external conducting cavities EC2.

[0051] like Figure 12 and Figure 13 As shown, in the fifth operating mode M5, the valve core 20 rotates to the area corresponding to the fifth conduction structure S15 and the connecting port 111. The eighth connecting port VP8 and the seventh connecting port VP7 are connected through the second internal conducting cavity IC2 and the second cavity EC12. The first connecting port VP1 and the fourth connecting port VP4 are connected through the first internal conducting cavity IC1 and the first cavity EC11. The second connecting port VP2 and the third connecting port VP3 are connected through one of the second external conducting cavities EC2. The fifth connecting port VP5 and / or the ninth connecting port VP9 and the sixth connecting port VP6 are connected through the other second external conducting cavity EC2.

[0052] like Figure 14 and Figure 15 As shown, in the sixth operating mode M6, the valve core 20 rotates to the area corresponding to the sixth conduction structure S16 and the connecting port. The eighth connecting port VP8 and the first connecting port VP1 are connected through one of the second external conducting chambers EC2. The second connecting port VP2 is connected to the fifth connecting port VP5 and / or the ninth connecting port VP9 through the internal conducting chamber 211 and the first external conducting chamber EC1. The third connecting port VP3 and the fourth connecting port VP4 are connected through another of the second external conducting chambers EC2. The sixth connecting port VP6 and the seventh connecting port VP7 are connected through yet another of the second external conducting chambers EC2.

[0053] like Figure 16 and Figure 17 As shown, in the seventh operating mode M7, the valve core 20 rotates to the area corresponding to the seventh conduction structure S17 and the connecting port 111. The eighth connecting port VP8 and the seventh connecting port VP7 are connected through the second internal conducting cavity IC2 and the second cavity EC12. The first connecting port VP1 and the second connecting port VP2 are connected through one of the second external conducting cavities EC2. The third connecting port VP3 and the sixth connecting port VP6 are connected through the first internal conducting cavity IC1 and the first cavity EC11. The fourth connecting port VP4, the fifth connecting port VP5 and / or the ninth connecting port VP9 are connected through the other of the second external conducting cavities EC2.

[0054] like Figure 18 and Figure 19 As shown, in the eighth operating mode M8, the valve core 20 rotates to the area corresponding to the eighth conduction structure S18 and the connecting port 111. The eighth connecting port VP8 and the first connecting port VP1 are connected through one of the second external conducting chambers EC2. The second connecting port VP2 and the third connecting port VP3 are connected through another second external conducting chamber EC2. The fourth connecting port VP4 and the seventh connecting port VP7 are connected through the internal conducting chamber 211 and the first external conducting chamber EC1. The fifth connecting port VP5 and / or the ninth connecting port VP9 and the sixth connecting port VP6 are connected through yet another second external conducting chamber EC2.

[0055] In some embodiments, the outer surface of the main body of each conductive cavity structure 21 is an arc surface, and the central angles corresponding to the arc surfaces of each conductive cavity structure 21 are equal. Through the above arrangement, the valve core 20 can rotate by the same angle to switch adjacent conductive structures 21, thereby realizing the switching of different working modes and simplifying the control of the control valve 1.

[0056] In summary, according to the control valve 1 provided in the embodiment of the present invention, the valve core 20 includes a plurality of conducting cavity structures 21, which are arranged along the circumferential direction of the valve core 20. The plurality of conducting cavity structures 21 are separated into independent structures by a first partition 22, such that no fluid flows between any two conducting cavity structures 21. Each conducting cavity structure 21 includes an internal conducting cavity 211, a plurality of external conducting cavities 212, a second partition 213, and a third partition 214. The second partition 213 is located between the internal conducting cavity 211 and the external conducting cavities 212. The external conducting cavities 212 include a first external conducting cavity EC1 and a second external conducting cavity EC2. The second partition 213 has a connecting hole 2131, allowing the internal conducting cavity 211 to communicate with the corresponding first external conducting cavity EC1, and the second external conducting cavity EC2 and the internal conducting cavity 211 to communicate through the second partition 213. Plate 213 is divided into independent spaces, so that there is no fluid flow between the second external conductive cavity EC2 and the internal conductive cavity 211. In this embodiment of the invention, the connecting ports 111 on the valve body 10 are arranged in a row along the height direction of the control valve 1, which can correspond to the conductive cavity structure 21. This allows the rotating valve core 20 to connect the corresponding area of ​​any conductive cavity structure 21 and the connecting port 111 through the internal conductive cavity 211, the connecting hole 2131 and the first external conductive cavity EC1, and through the second external conductive cavity EC2 to connect the corresponding two or three connecting ports 111. In this way, the control valve 1 can make multiple connecting ports 111 and multiple valve ports 103 have different communication methods, so that one control valve 1 can control multiple flow paths, which is more convenient and compact in use and easy to promote and apply.

[0057] It should be noted that the above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. For example, the directional definitions such as "front", "back", "left", "right", "up", and "down" are used. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify, combine or make equivalent substitutions to the present invention. All technical solutions and improvements that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.

Claims

1. A control valve, comprising a valve body and a valve core, the valve body including a side wall portion, the control valve having a valve cavity, the side wall portion being the peripheral wall of the valve cavity or at least a portion of the peripheral wall, the valve core being rotatable under a drive, characterized in that, The control valve has at least five channels, one end of each channel penetrates the side wall to form a communication port, the communication port communicates with the valve cavity, the valve core includes multiple conduction cavity structures and multiple first partitions, the multiple conduction cavity structures extend along the height direction of the valve core and are arranged along the circumferential direction of the valve core, a first partition is provided between each two adjacent conduction cavity structures, the first partition isolates the conduction cavity structures, each conduction cavity structure includes an internal conduction cavity, multiple external conduction cavities, a second partition and a third partition, the multiple external conduction cavities are arranged along the height direction of the valve core, the second partition is located between the internal conduction cavity and the external conduction cavity, along the radial direction of the valve core, the second partition is located outside the internal conduction cavity, and the third partition is located between two adjacent external conduction cavities; In each of the aforementioned conductive cavity structures, the external conductive cavity is isolated by the third partition. The external conductive cavity includes a first external conductive cavity and a second external conductive cavity. The second partition has at least two connecting holes. The internal conductive cavity communicates with the corresponding first external conductive cavity through the connecting holes. The second external conductive cavity and the internal conductive cavity are isolated by the second partition. The connecting ports on the side wall are arranged along the height direction of the control valve. When the valve core is rotated, the corresponding area of ​​any of the connecting cavity structures can be connected through the internal connecting cavity, the connecting hole, and the first external connecting cavity to the corresponding two or three connecting ports, and the corresponding two or three connecting ports can be connected through the second external connecting cavity.

2. The control valve according to claim 1, characterized in that, The control valve has 2n+1 channels. Rotating the valve core to any of the conductive cavity structures corresponding to the communication ports allows the formation of n conductive flow paths through the internal and external conductive cavities of the valve core. Each conductive flow path includes a first flow path and n-1 second flow paths. The first flow path includes three connected communication ports, and the second flow path includes two connected communication ports, where n is a positive integer greater than or equal to 2.

3. The control valve according to claim 1, characterized in that, The valve core includes a top plate and a bottom plate, which are arranged along the height direction of the valve core. The top plate forms the top wall of the conduction cavity structure, and the bottom plate forms the bottom wall of the conduction cavity structure. The internal and external conduction cavities of the conduction cavity structure are both located between the top plate and the bottom plate. Along the height direction of the valve core, the orthographic projection of the top plate and the orthographic projection of the bottom plate both cover the orthographic projections of the internal and external conduction cavities.

4. The control valve according to claim 1, characterized in that, The conduction cavity structure includes a first structure, which comprises two internal conduction cavities: a first internal conduction cavity and a second internal conduction cavity. Along the radial direction of the valve core, the first internal conduction cavity is located between the external conduction cavity and the second internal conduction cavity. The control valve further includes a fifth partition, which is located between the first internal conduction cavity and the second internal conduction cavity to separate them into independent spaces. The first external conductive cavity includes a first cavity and a second cavity. The first internal conductive cavity communicates with the two corresponding first cavities, and the second internal conductive cavity communicates with the two corresponding second cavities. Along the height direction of the valve core, there is at least one second external conductive cavity between the two first cavities that are connected to the first internal conductive cavity, and the two first cavities that are connected to the first internal conductive cavity are located between the two second cavities that are connected to the second internal conductive cavity.

5. The control valve according to claim 4, characterized in that, The conductive cavity structure further includes a second structure, which includes an internal conductive cavity that communicates with two corresponding first external conductive cavities. Along the height direction of the valve core, there is at least one second external conductive cavity between the two first external conductive cavities that are connected to the internal conductive cavity.

6. The control valve according to claim 4, characterized in that, The conduction cavity structure further includes a third structure, which comprises two internal conduction cavities. The second partition is located between two adjacent internal conduction cavities. The two internal conduction cavities are a third internal conduction cavity and a fourth internal conduction cavity, respectively. Along the radial direction of the valve core, the third internal conduction cavity is located between the external conduction cavity and the fourth internal conduction cavity. The three internal conductive cavities are connected to the corresponding two first external conductive cavities, or both the third internal conductive cavity and the fourth internal conductive cavity are connected to the two first external conductive cavities. Along the height direction of the valve core, there is at least one second external conductive cavity between the two first external conductive cavities that are connected to the internal conductive cavity.

7. The control valve according to any one of claims 4 to 6, characterized in that, The control valve has nine channels, and the valve core includes eight conductive structures, which are arranged sequentially along the circumference of the valve core: a first conductive structure, a second conductive structure, a third conductive structure, a fourth conductive structure, a fifth conductive structure, a sixth conductive structure, a seventh conductive structure, and an eighth conductive structure. The first conductive structure includes one or two internal conductive cavities and five external conductive cavities. The five external conductive cavities include two first external conductive cavities and three second external conductive cavities. Along the height direction of the valve core, two adjacent second external conductive cavities are located between two first external conductive cavities, and the other second external conductive cavity is located at the bottom end of the valve core. The second conductive structure includes two internal conductive cavities and six external conductive cavities. The six external conductive cavities include two first cavities, two second cavities, and two second external conductive cavities. Along the height direction of the valve core, the two second external conductive cavities are adjacent and located between the two first cavities, and the two first cavities are located between the two second cavities. The third conduction structure includes one or two internal conduction cavities and five external conduction cavities. The five external conduction cavities include two first external conduction cavities and three second external conduction cavities. Along the height direction of the valve core, two adjacent second external conduction cavities are located between two first external conduction cavities, and the other second external conduction cavity is located at the top of the valve core. The fourth conduction structure includes one or two internal conduction cavities and five external conduction cavities. The five external conduction cavities include two first external conduction cavities and three second external conduction cavities. Along the height direction of the valve core, one of the three second external conduction cavities is located between the two first external conduction cavities, and the other two second external conduction cavities are adjacent to each other and located close to the bottom end of the valve core. The fifth conductive structure includes two internal conductive cavities and six external conductive cavities. The six external conductive cavities include two first cavities, two second cavities, and two second external conductive cavities. Along the height direction of the valve core, one second external conductive cavity is disposed between the two first cavities, and another second external conductive cavity is located between the first cavity and the second cavity and near the bottom end of the valve core. The two second cavities are respectively disposed at the top and bottom ends of the valve core. The sixth conduction structure includes one or two internal conduction cavities and five external conduction cavities. The five external conduction cavities include two first external conduction cavities and three second external conduction cavities. Along the height direction of the valve core, one of the three second external conduction cavities is located between the two first external conduction cavities, and the other two second external conduction cavities are respectively located at the top and bottom ends of the valve core. The seventh conduction structure includes two internal conduction cavities and six external conduction cavities. The six external conduction cavities include two first cavities, two second cavities, and two second external conduction cavities. Along the height direction of the valve core, one second external conduction cavity is disposed between the two first cavities, and another second external conduction cavity is located between the first cavity and the second cavity and is disposed near the top end of the valve core. The two second cavities are respectively disposed at the top end and the bottom end of the valve core. The sixth conduction structure includes one or two internal conduction cavities and five external conduction cavities. The five external conduction cavities include two first external conduction cavities and three second external conduction cavities. Along the height direction of the valve core, one of the three second external conduction cavities is located between the two first external conduction cavities, and the other two second external conduction cavities are adjacent to each other and located close to the top of the valve core.

8. The control valve according to claim 7, characterized in that, The control valve has nine channels, and the nine channels form connecting ports that are arranged sequentially in a row along the height direction of the valve core: the eighth connecting port, the first connecting port, the second connecting port, the third connecting port, the fourth connecting port, the fifth connecting port, the ninth connecting port, the sixth connecting port, and the seventh connecting port. The eighth connecting port is located at the top of the control valve, and the seventh connecting port is located at the bottom of the control valve. The control valve includes at least one of the following eight operating modes: In the first working mode, the valve core rotates to the area corresponding to the first conductive structure and the connecting port. The eighth connecting port, the fifth connecting port, and the ninth connecting port are connected through the internal conductive cavity and the first external conductive cavity. The first connecting port and the second connecting port are connected through the second external conductive cavity. The third connecting port and the fourth connecting port are connected through the second external conductive cavity. The sixth connecting port and the seventh connecting port are connected through the second external conductive cavity. In the second working mode, the valve core rotates to the area corresponding to the second conductive structure and the connecting port. The eighth connecting port and the seventh connecting port are connected through the second internal conductive cavity and the second cavity. The first connecting port and the sixth connecting port are connected through the first internal conductive cavity and the first cavity. The second connecting port and the third connecting port are connected through the second external conductive cavity. The fourth connecting port, the fifth connecting port and the ninth connecting port are connected through the second external conductive cavity. In the third operating mode, the valve core rotates to the area corresponding to the third conductive structure and the connecting port. The eighth connecting port and the first connecting port are connected through the second external conductive cavity. The second connecting port and the seventh connecting port are connected through the first external conductive cavity and the internal conductive cavity. The third connecting port and the fourth connecting port are connected through the second external conductive cavity. The fifth connecting port, the ninth connecting port, and the sixth connecting port are connected through the second external conductive cavity. In the fourth operating mode, the valve core rotates to the area corresponding to the fourth conductive structure and the connecting port. The eighth connecting port and the third connecting port are connected through the first external conductive cavity and the internal conductive cavity. The first connecting port and the second connecting port are connected through the second external conductive cavity. The fourth connecting port, the fifth connecting port, and the ninth connecting port are connected through the second external conductive cavity. The sixth connecting port and the seventh connecting port are connected through the second external conductive cavity. In the fifth operating mode, the valve core rotates to the area corresponding to the fifth conductive structure and the connecting port. The eighth connecting port and the seventh connecting port are connected through the second internal conductive cavity and the second cavity. The first connecting port and the fourth connecting port are connected through the first internal conductive cavity and the first cavity. The second connecting port and the third connecting port are connected through the second external conductive cavity. The fifth connecting port, the ninth connecting port and the sixth connecting port are connected through the second external conductive cavity. In the sixth operating mode, the valve core rotates to the area corresponding to the sixth conductive structure and the connecting port. The eighth connecting port and the first connecting port are connected through the second external conductive cavity. The second connecting port, the fifth connecting port, and the ninth connecting port are connected through the internal conductive cavity and the first external conductive cavity. The third connecting port and the fourth connecting port are connected through the second external conductive cavity. The sixth connecting port and the seventh connecting port are connected through the second external conductive cavity. In the seventh operating mode, the valve core rotates to the area corresponding to the seventh conductive structure and the connecting port. The eighth connecting port is connected to the seventh connecting port through the second internal conductive cavity and the second cavity. The first connecting port and the second connecting port are connected through the second external conductive cavity. The third connecting port and the sixth connecting port are connected through the first internal conductive cavity and the first cavity. The fourth connecting port, the fifth connecting port and the ninth connecting port are connected through the second external conductive cavity. In the eighth operating mode, the valve core rotates to the area corresponding to the eighth conductive structure and the connecting port. The eighth connecting port and the first connecting port are connected through the second external conductive cavity. The second connecting port and the third connecting port are connected through the second external conductive cavity. The fourth connecting port and the seventh connecting port are connected through the internal conductive cavity and the first external conductive cavity. The fifth connecting port, the ninth connecting port and the sixth connecting port are connected through the second external conductive cavity.

9. The control valve according to any one of claims 1 to 8, characterized in that, The valve core further includes a connecting post, the area between the outer surface of the connecting post and the inner surface of the second partition plate is the region where the internal conduction cavity is located, and along the radial direction of the valve core, the first partition plate extends from the outer surface of the connecting post in a direction away from the connecting post, and the outer surface of the first partition plate in the radial direction forms part of the outer surface of the valve core. The first partition, the second partition, the third partition, and the connecting column are fixedly connected as a single structure by injection molding.

10. The control valve according to any one of claims 1 to 8, characterized in that, The outer surface of the main body of each of the conductive cavity structures is an arc surface, and the central angles corresponding to the arc surfaces of each conductive cavity structure are equal.

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