control valves

Abstract

The present invention discloses a control valve, including a valve body, a first valve core and a second valve core, the control valve having a first chamber, a second chamber and a communicating channel, one end of the first channel of the control valve forming a first communicating port, the other end of the first channel forming a first valve port, one end of the second channel forming a second communicating port, and the other end of the second channel forming a second valve port, at least a portion of the first valve core is located in the first chamber, and at least a portion of the second valve core is located in the second chamber, the first valve core including a first conducting chamber and a second conducting chamber, the second valve core including a third conducting chamber, at least two corresponding first valve ports are communicated through at least one of the first conducting chamber and the second conducting chamber, and the corresponding first valve port and second valve port are communicated through one of the first conducting chamber and the second conducting chamber, the communicating channel and the third conducting chamber; in this way, fluid control of multiple flow paths can be realized, which is more convenient and compact when used.

Description

Technical Field

[0001] The present invention relates to the field of fluid control, and in particular to a control valve. Background Art

[0002] Some systems require multi-channel control valves to control the flow path, such as motor vehicles. Currently, multiple control valves may be used for control. How to provide a control valve to control the fluids in multiple flow paths to facilitate more convenient use and a more compact structure. Summary of the Invention

[0003] The object of the present invention is to provide a control valve that can realize fluid control of multiple flow paths, is more convenient to use, and has a more compact structure.

[0004] 16. The control valve according to claim 14, wherein the valve body comprises a first valve core and a second valve core, wherein the control valve comprises a first chamber, a second chamber, and a communication channel connecting the first chamber and the second chamber, wherein the arrangement direction of the first chamber and the second chamber intersects with the height direction of the control valve, the valve body comprises a first side wall portion and a second side wall portion, the first side wall portion is a peripheral wall of the first chamber or at least a part of the peripheral wall, the second side wall portion is a peripheral wall of the second chamber or at least a part of the peripheral wall, the control valve comprises a first channel and a second channel, one end of the first channel passes through the first side wall portion to form a first communication port, the other end of the first channel passes through the outer surface of the control valve to form a first valve port, the first communication port can be communicated with the first chamber, one end of the second channel passes through the second side wall portion to form a second communication port, the other end of the second channel passes through the outer surface of the control valve to form a second valve port, the second communication port can be communicated with the second chamber,

[0005] At least a portion of the first valve core is located in the first chamber and is rotatable, and at least a portion of the second valve core is located in the second chamber and is rotatable. The rotation axis of the first valve core is parallel to the rotation axis of the second valve core. The first valve core includes a first and a second isolated conducting cavity. The first conducting cavity is a groove structure that is recessed from the outer circumferential surface of the first valve core to the interior of the first valve core. The second conducting cavity passes through the first valve core. The second valve core includes a third conducting cavity. The third conducting cavity is a groove structure that is recessed from the outer circumferential surface of the second valve core to the interior of the second valve core.

[0006] The corresponding at least two first valve ports are connected through at least one of the first conducting cavity and the second conducting cavity and the first connecting port; and the corresponding first valve port and the second valve port are connected through one of the first conducting cavity and the second conducting cavity, the first connecting port, the connecting channel, the third conducting cavity and the second connecting port.

[0007] According to an embodiment of the present invention, a control valve is provided, which includes a valve body, a first valve core and a second valve core. The valve body has a first chamber, a second chamber and a connecting channel connecting the first chamber and the second chamber. At least a portion of the first valve core is located in the first chamber, and at least a portion of the second valve core is located in the second chamber. The control valve has a first channel connected to the first chamber and a second channel connected to the second chamber. By rotating the first valve core and / or the second valve core, at least two first channels corresponding to the first conducting cavity of the first valve core can be connected, and the first channel corresponding to the second conducting cavity can be connected through the connecting channel and the third conducting cavity of the second valve core. In this way, the control valve can have different communication modes between the valve ports, so that one control valve can control multiple flow paths, which is more convenient to use and has a more compact structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is a schematic diagram of the exploded structure of a control valve provided by an embodiment of the present invention;

[0009] Figure 2 yes Figure 1 A schematic diagram of a three-dimensional structure of a control valve from one perspective is shown in FIG;

[0010] Figure 3 yes Figure 2 A schematic diagram of a partial cross-sectional structure of a control valve at one position shown in FIG;

[0011] Figure 4 This is a schematic diagram of the three-dimensional structure of a valve body provided by one embodiment of the present invention;

[0012] Figure 5 yes Figure 4 Schematic diagram of the cross-sectional structure of the valve body shown in FIG;

[0013] Figure 6 yes Figure 2 A schematic front view of a partial structure of a control valve shown in FIG;

[0014] Figure 7 yes Figure 6 Schematic diagram of the cross-sectional structure along the AA direction;

[0015] Figure 8 is a structural schematic diagram of a first valve core provided by an embodiment of the present invention;

[0016] Figure 9 yes Figure 8 A schematic cross-sectional structural diagram of the first valve core is shown in FIG;

[0017] Figure 10 is a structural schematic diagram of a second valve core provided by an embodiment of the present invention;

[0018] Figure 11 yes Figure 2 A schematic diagram of a partial cross-sectional structure of the control valve at another position shown in FIG.

[0019] Figure 12 is a schematic cross-sectional structural diagram of a combination of a second sealing member, a second valve core, and a valve body provided by one embodiment of the present invention;

[0020] Figure 13 yes Figure 12 Schematic diagram of the enlarged structure in the Q region;

[0021] Figure 14 yes Figure 2 A schematic cross-sectional view of the control valve in a first working mode is shown;

[0022] Figure 15 yes Figure 2 A schematic cross-sectional view of the control valve in the second working mode is shown;

[0023] Figure 16 yes Figure 2 Schematic diagram of the cross-sectional structure of the control valve in the third working mode shown in FIG;

[0024] Figure 17 yes Figure 2 Schematic diagram of the cross-sectional structure of the control valve in the fourth working mode shown in FIG;

[0025] Figure 18 yes Figure 2 Schematic diagram of the cross-sectional structure of the control valve in the fifth working mode shown in FIG;

[0026] Figure 19 yes Figure 2 Schematic diagram of the cross-sectional structure of the control valve in the sixth working mode shown in FIG;

[0027] Figure 20 yes Figure 2 Schematic diagram of the cross-sectional structure of the control valve in the seventh working mode shown in FIG;

[0028] Figure 21 yes Figure 2 Schematic diagram of the cross-sectional structure of the control valve in the eighth working mode is shown in FIG. DETAILED DESCRIPTION

[0029] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments. As used herein, relational terms such as "first" and "second" are merely used to distinguish one component from another having the same name, and do not necessarily require or imply any actual relationship or order between these components.

[0030] like Figures 1 to 5 As shown, an embodiment of the present invention provides a control valve 1, comprising a control component 40, an upper cover 103, a valve body 10, a first valve core 20, and a second valve core 30. At least a portion of the first valve core 20 and at least a portion of the second valve core 30 are located within the valve body 10, and the first valve core 20 and the second valve core 30 can be driven to rotate independently, so that the conducting cavities of the two valve cores connect different valve ports of the control valve 1, thereby realizing the control function of the control valve 1 over the fluid. At least a portion of the first valve core 20 and at least a portion of the second valve core 30 are located between the upper cover 103 and the valve body 10. The upper cover 103 can be sealed with the valve body 10 to prevent fluid leakage from the connection between the two. The control component 40 is located on the side of the upper cover 103 facing away from the valve body 10, and the control component 40 can drive the first valve core 20 and the second valve core 30 to rotate.

[0031] like Figures 1 to 3 As shown, the control valve 1 has a first chamber 11, a second chamber 12 and a communication channel 13 between the first chamber 11 and the second chamber 12. The communication channel 13 can realize the mutual communication of fluids in the first chamber 11 and the second chamber 12. The arrangement direction of the first chamber 11 and the second chamber 12 intersects with the height direction of the control valve 1. For example, Figure 1 In the embodiment, the arrangement direction of the first chamber 11 and the second chamber 12 is perpendicular to the height direction of the control valve 1. The valve body 10 includes a first side wall portion 14 and a second side wall portion 15. The first side wall portion 14 and the second side wall portion 15 are fixedly connected and sealed, or the first side wall portion 14 and the second side wall portion 15 are integrally formed. The first side wall portion 14 is the peripheral wall of the first chamber 11 or at least a part of the peripheral wall, and the second side wall portion 15 is the peripheral wall of the second chamber 12 or at least a part of the peripheral wall. For further reference, Figure 4 and Figure 5 The valve body 10 may further include a connecting wall portion 18 connecting the first side wall portion 14 and the second side wall portion 15. The connecting wall portion 18 is located between the first side wall portion 14 and the second side wall portion 15. The connecting wall portion 18 is a peripheral wall of the communication channel 13 or at least a part of the peripheral wall. The first side wall portion 14, the second side wall portion 15 and the connecting wall portion 18 can be integrally formed. To achieve fluid circulation, as shown in FIG. Figure 5As shown, the control valve 1 has a first channel 101 and a second channel 102, one end of the first channel 101 penetrates the first side wall portion 14 to form a first communication port 141, and the first communication port 141 is communicated with the first chamber 11, and the other end of the first channel 101 penetrates the outer surface of the control valve 1 to form a first valve port 1011, so that the fluid can enter or leave the control valve 1 from the first valve port 1011, one end of the second channel 102 penetrates the second side wall portion 15 to form a second communication port 151, and the second communication port 151 is communicated with the second chamber 12, and the other end of the second channel 102 penetrates the outer surface of the control valve 1 to form a second valve port 1021, so that the fluid can enter or leave the control valve 1 from the second valve port 1021.

[0032] See also Figure 3 、 Figures 6 to 9 , at least part of the first valve core 20 is located in the first chamber 11 and can rotate under the drive, at least part of the second valve core 30 is located in the second chamber 12 and can rotate under the drive, the first valve core 20 includes a first conduction cavity 21 and a second conduction cavity 22 isolated as independent spaces, the first conduction cavity 21 is a groove structure recessed from the outer peripheral surface of the first valve core 20 to the inside of the first valve core 20, at this time the first conduction cavity 21 passes through the outer peripheral surface of the first valve core 20 to form a first conduction port 211, the second conduction cavity 22 passes through the first valve core 20, at this time the second conduction cavity 22 passes through the outer peripheral surface of the first valve core 20 to form two second conduction ports 221, the cross-sectional area of the first conduction port 211 is larger than the cross-sectional area of the second conduction port 221. By setting the first conduction cavity 21 and the second conduction cavity 22, different conduction modes between multiple valve ports can be realized when the first valve core 20 rotates. As Figure 10 As shown, the second valve core 30 includes a third conducting cavity 31 , and the third conducting cavity 31 is a groove structure that is recessed from the outer peripheral surface of the second valve core 30 toward the inside of the second valve core 30 .

[0033] Based on this, by rotating the first valve core 20, the corresponding at least two first valve ports 1011 can be connected through at least one of the first conduction cavity 21 and the second conduction cavity 22 and the first communication port 141. For example, when the first valve core 20 is rotated, the first conduction cavity 21 and the first communication port 141 can be connected to the at least two first valve ports 1011 corresponding to the first conduction cavity 21, and / or, when the first valve core 20 is rotated, the second conduction cavity 22 and the first communication port 141 can be connected to the at least two first valve ports 1011 corresponding to the second conduction cavity 22; and by rotating the first valve core 20 and The second valve core 30 can connect the corresponding first valve port 1011 and the second valve port 1021 through one of the first conduction cavity 21 and the second conduction cavity 22, the first connecting port 141, the connecting channel 13, the third conduction cavity 31 and the second connecting port 151. At this time, the first valve core 20 can not only realize the function of connecting at least two first valve ports 1011, but also realize the function of connecting the first valve port 1011, the connecting channel 13 and the second valve port 1021. Through the above arrangement, one control valve 1 can control multiple flow paths, which will be more convenient and compact when used.

[0034] To realize the rotation of the first valve core 20 and the second valve core 30, please refer to Figure 3 In some embodiments, the control valve 1 further includes a first drive shaft 41 and a second drive shaft 42. The first drive shaft 41 is integrally formed with the first valve core 20 or is transmission-connected to the first drive shaft 41, so that the first drive shaft 41 and the first valve core 20 rotate synchronously. The second drive shaft 42 is integrally formed with the second valve core 30 or is transmission-connected to the second drive shaft 42, so that the second drive shaft 42 and the second valve core 30 rotate synchronously. When the first drive shaft 41 drives the first valve core 20 to rotate to any position, one of the first conduction cavity 21 and the second conduction cavity 22 communicates with the communication channel 13, so that the fluid flowing in the first valve core 20 can always flow into the second chamber 12 through the communication channel 13. The second drive shaft 42 can drive the second valve core 30 to rotate, so that the third conduction cavity 31 connects to the at least one second valve port 1021.

[0035] Please see further Figure 1 and Figure 3The control valve 1 can also include two driving members, namely a first driving member and a second driving member. The first driving member can be a first motor 41 or a first motor 41 and a first transmission gear assembly 47, and the second driving member can be a second motor 42 or a second motor 42 and a second transmission gear assembly 48. The first driving member is transmission-connected to the first driving shaft 41, and the second driving member is transmission-connected to the second driving shaft 42. The first driving member and the second driving member can operate independently. The first valve core 20 can rotate under the drive of the first driving member, and the second valve core 30 can rotate under the drive of the second driving member. By providing two driving members and the two driving members being able to operate independently, the first valve core 20 and the second valve core 30 can rotate independently, thereby realizing multiple conduction modes of the first valve port 1011 and the second valve port 1021.

[0036] In order to facilitate the assembly of the control valve 1 with other components in the fluid control system and improve the degree of integration of the control valve 1 with other components, in some embodiments, such as Figures 1 to 5 The valve body 10 also includes a mounting portion 17, which is fixedly connected to the first side wall portion 14, the second side wall portion 15 and the connecting wall portion 18. For example, the mounting portion 17, the first side wall portion 14, the second side wall portion 15 and the connecting wall portion 18 can be formed as one piece. The mounting portion 17 has a mounting plane, and the first valve port 1011 and the second valve port 1021 of the control valve 1 both pass through the mounting plane, so that the various valve ports of the control valve 1 are arranged on the mounting plane and the directions of the various valve ports are the same, which can relatively simplify the assembly steps of the control valve 1 and other components, reduce the leakage points of the connection parts, and increase the reliability of the seal.

[0037] In order to realize the function of the first valve core 20 connecting at least two first valve ports 1011 and connecting the first valve port 1011 and the communication channel 13, in some embodiments, refer to Figures 7 to 9 The main body of the first valve core 20 is a columnar structure. The first valve core 20 includes a top plate 23, a bottom plate 24, and a partition plate 25 located between the top plate 23 and the bottom plate 24. The top plate 23 and the bottom plate 24 are arranged along the height direction of the first valve core 20. A first conduction cavity 21 passes through the outer peripheral surface of the first valve core 20 to form a first conduction port 211. A second conduction cavity 22 passes through the outer peripheral surface of the first valve core 20 to form two second conduction ports 221. Along the circumferential direction of the first valve core 20, there is at least one first conduction port 211 between the two second conduction ports 221. Along the radial direction of the first valve core 20, the second conduction cavity 22 is closer to the axis of the first valve core 20 than the first conduction cavity 21. In a specific implementation, Figure 9In the embodiment, the first valve core 20 has three first conduction chambers 21 and one second conduction chamber 22. Two of the three first conduction chambers 21 are arranged adjacent to each other and are located on one side of the first valve core 20 along the radial direction of the first valve core 20. The second conduction chamber 22 and the first conduction chamber 21 are located on the other side of the radial direction of the first valve core 20. Furthermore, in order to limit the rotation angle of the first valve core 20, the first valve core 20 also includes a first stopper 26 protruding from the bottom plate 24 in a direction away from the top plate 23. Figure 4 As shown, the valve body 10 includes a stopper 191 protruding from the bottom wall of the valve body 10 and located in the first chamber 11 . The stopper 191 cooperates with the first stopper 26 to limit the rotation angle of the first valve core 20 .

[0038] Combine Figure 1 、 Figure 4 and Figure 7 In order to ensure that the control valve 1 has better sealing performance, the control valve 1 also includes a first sealing member 51. The first sealing member 51 is located in the first chamber 11 and between the first side wall portion 14 and the outer surface of the first valve core 20. The first sealing member 51 includes openings 511 with the same number as the first communicating ports 141. The first communicating ports 141 are connected to the first chamber 11 through the openings 511. The control valve 1 also includes a limiting portion 16. The limiting portion 16 is fixedly connected to the valve body 10, and at least part of the limiting portion 16 protrudes from the first side wall portion 14 and is located in the first chamber 11. The two ends of the first sealing member 51 in the circumferential direction are limited by the limiting portion 16 so that the limiting portion 16 limits the rotation of the first sealing member 51.

[0039] like Figure 7 、 Figures 10 to 13 As shown, in some embodiments, the main body of the second valve core 30 is a spherical structure, the number of the second channels 102 of the control valve is two, the number of the second valve ports 1021 is two, and rotating the second valve core 30 can connect at least one of the two second valve ports 1021 to the connecting channel 13. At this time, by rotating the first valve core 20, the first valve port 1011 can be connected to the connecting channel 13, thereby realizing the connection between the first valve port 1011 and the second valve port 1021. Through the above arrangement, the structure of the second valve core 30 can be relatively simplified. In order to limit the rotation angle of the second valve core 30, the second valve core 30 also includes a second stopper 32 protruding from the main body of the second valve core 30, combined with Figure 4 and Figure 5 As shown, the valve body 10 also includes a recessed portion 192 located in the second chamber 12. The recessed portion 192 is recessed from the inner surface of the bottom wall portion of the valve body 10 toward the bottom wall portion. The recessed portion 192 is an open-loop annular structure. The second stopper 32 is embedded in the recessed portion 192 and rotates in the recessed portion 192. The two ends of the recessed portion 192 in the circumferential direction face the second stopper 32 to limit the rotation angle of the second valve core 30, thereby realizing the limitation of the rotation angle of the second valve core 30.

[0040] Furthermore, the control valve 1 also includes a second sealing member 52 with the same number as the second connecting ports 151. The second sealing member 52 is located between the inner surface of the second side wall portion 15 and the outer surface of the second valve core 30. The second sealing member 52 includes an elastic member 521 and a sealing block 522. The sealing block 522 includes a first sub-block 5221 and a second sub-block 5222 that are integrally formed and arranged along the axial direction of the sealing block 522. The elastic member 521 is sleeved on the outer peripheral side of the second sub-block 5222. The first sub-block 5221 is located between the elastic member 521 and the outer surface of the second valve core 30 and forms a first sealing surface with the outer surface of the valve core of the second valve core 30 to prevent leakage of fluid between the sealing block 522 and the second valve core 30. The elastic member 521 is located between the first sub-block 5221 and the inner surface of the second side wall portion 15 and forms a second sealing surface with the inner surface of the second side wall portion 15 to prevent leakage of fluid between the elastic member 521 and the second side wall portion 15 of the valve body 10. Furthermore, the elastic member 521 has a first channel 5211, which is connected to the second channel 102, and the elastic member 521 includes a main body 5212, a first extension portion 5213 and a second extension portion 5214, the first extension portion 5213 surrounds one end of the main body 5212 in the thickness direction, and the second extension portion 5214 surrounds the other end of the main body 5212 in the axial direction, and the first extension portion 5213 and the second extension portion 5214 are spaced apart, the first extension portion 5213 and the second extension portion 5214 are both inclined to the main body 5212, and the first extension portion 5213 forms a part of the first channel 5211. At this time, the local cross-section of the elastic member 521 along the axial direction is "X"-shaped, and the elastic member 521 is an X-shaped sealing ring.

[0041] Through the above-mentioned arrangement, when the second valve core 30 rotates, the extrusion of the X-shaped sealing ring between the second valve core 30 and the second side wall portion 15 also changes accordingly. Since the first extension portion 5213 and the second extension portion 5214 are both inclined relative to the main body portion 5212, the contact surface between the first extension portion 5213 and the second extension portion 5214 and the second valve core 30 will be subjected to a tangential force. At this time, the gap between the first extension portion 5213 and the second extension portion 5214 can provide space for the X-shaped sealing ring when it is compressed and deformed under force. At the same time, the gap here can also store grease, which can not only play a lubricating role but also play a better sealing role. Optionally, at least a portion of the inner surface of the sealing block 522 matches the outer surface structure of the second valve core 30. For example, the inner surface of the sealing block 522 that matches the second valve core 30 is the same as or similar to the outer surface structure of the second valve core 30, so that the inner surface of the sealing block 522 can fit more tightly with the outer surface of the second valve core 30. The sealing block 522 can be made of a wear-resistant self-lubricating material. For example, the sealing block 522 can be made of polyvinylidene fluoride (PVDF).

[0042] Further reading Figure 7 In some embodiments, there are seven first channels 101 and seven first valve ports 1011, and accordingly, there are seven first communication ports 141. The communication channel 13 penetrates the first sidewall portion 14 to form first openings 131. The seven first communication ports 141 and first openings 131 are evenly distributed along the circumference of the first sidewall portion 14. The control valve has two second channels 102 and two second valve ports 1021. The communication channel 13 penetrates the second sidewall portion 15 to form a second opening 132. Along the circumference of the second sidewall portion 15, the second opening 132 is located between the two second valve ports 1021.

[0043] Further reading Figure 7 、 Figures 14 to 21 In some embodiments, the seven first channels 101 form seven first communication ports 141, which are respectively designated as the first port VP1, the second port VP2, the third port VP3, the fourth port VP4, the sixth port VP6, the seventh port VP7, and the eighth port VP8. The first port VP1, the second port VP2, the third port VP3, the fourth port VP4, the first orifice 131, the sixth port VP6, the seventh port VP7, and the eighth port VP8 are arranged sequentially and evenly along the circumferential direction of the first valve core 20. In this case, Figure 7As shown, the angle formed by the line passing through the center of the first valve core 20 and the midpoints of the two adjacent first communication ports 141 can be 45 degrees, and the angle between the adjacent first communication ports 141 and the first orifice 131 can also be 45 degrees. The two second channels 102 form two second communication ports 151, which are respectively recorded as the fifth port VP5 and the ninth port VP9. The control valve includes at least any one of eight working modes. Accordingly, the first valve core 20 can be rotated to any one of eight positions. The various working modes of the control valve are introduced below. In order to facilitate a clear understanding of the conduction conditions of each valve port of the control valve, Figures 14 to 21 In the figure, the conductance of each valve port is schematically drawn with bold black lines.

[0044] Combine Figure 7 and 14 , the control valve is in the first working mode M1, the first valve core 20 rotates to the first position, the first port VP1 and the second port VP2 are connected through one of the first conduction chambers 21, the third port VP3 and the fourth port VP4 are connected through another first conduction chamber 21, the sixth port VP6 and the seventh port VP7 are connected through another first conduction chamber 21, and at least one of the fifth port VP5 and the ninth port VP9 is connected to the eighth port VP8 through the second conduction chamber 22, the communication channel 13 and the third conduction chamber 31. For example, Figure 14 In the figure, the position of the second valve core 30 is schematically shown when the fifth port VP5 is connected to the connecting channel 13 through the third conducting cavity. By rotating the second valve core 30, the ninth port VP9 can also be connected to the connecting channel 13, or the fifth port VP5 and the ninth port VP9 can be connected to the connecting channel 13 at the same time. The following working mode is mainly explained by taking the connection between the fifth port VP5 and the connecting channel 13 as an example.

[0045] Combine Figure 7 and 15 , the control valve is in the second working mode M2, the first valve core 20 rotates to the second position, the third port VP3 and the second port VP2 are connected through one of the first conduction chambers 21, at least one of the fifth port VP5 and the ninth port VP9 is connected to the fourth port VP4 through another first conduction chamber 21, the connecting channel 13 and the third conduction chamber 31, the seventh port VP7 and the eighth port VP8 are connected through another first conduction chamber 21, and the sixth port VP6 and the first port VP1 are connected through the second conduction chamber 22.

[0046] Combine Figure 7 and 16, the control valve is in the third working mode M3, the first valve core 20 rotates to the third position, the first port VP1 and the eighth port VP8 are connected through one of the first conduction chambers 21, the third port VP3 and the fourth port VP4 are connected through another first conduction chamber 21, at least one of the fifth port VP5 and the ninth port VP9 is connected to the sixth port VP6 through another first conduction chamber 21, the connecting channel 13 and the third conduction chamber 31, and the second port VP2 and the seventh port VP7 are connected through the second conduction chamber 22.

[0047] Combine Figure 7 and 17 , the control valve is in the fourth working mode M4, the first valve core 20 rotates to the fourth position, the first port VP1 and the second port VP2 are connected through one of the first conduction chambers 21, at least one of the fifth port VP5 and the ninth port VP9 is connected to the fourth port VP4 through another first conduction chamber 21, the connecting channel 13 and the third conduction chamber 31, the sixth port VP6 and the seventh port VP7 are connected through another first conduction chamber 21, and the third port VP3 and the eighth port VP8 are connected through the second conduction chamber 22.

[0048] Combine Figure 7 and 18 , the control valve is in the fifth working mode M5, the first valve core 20 rotates to the fifth position, the third port VP3 and the second port VP2 are connected through one of the first conduction chambers 21, the seventh port VP7 and the eighth port VP8 are connected through another first conduction chamber 21, at least one of the fifth port VP5 and the ninth port VP9 is connected to the sixth port VP6 through another first conduction chamber 21, the connecting channel 13 and the third conduction chamber 31, and the first port VP1 and the fourth port VP4 are connected through the second conduction chamber 22.

[0049] Combine Figure 7 and 19 , the control valve is in the sixth working mode M6, the first valve core 20 rotates to the sixth position, the first port VP1 and the eighth port VP8 are connected through one of the first conduction chambers 21, the third port VP3 and the fourth port VP4 are connected through another first conduction chamber 21, the sixth port VP6 and the seventh port VP7 are connected through another first conduction chamber 21, and at least one of the fifth port VP5 and the ninth port VP9 is connected to the second port VP2 through the second conduction chamber 22, the connecting channel 13 and the third conduction chamber 31.

[0050] Combine Figure 7 and 20, the control valve is in the seventh working mode M7, the first valve core 20 rotates to the seventh position, the first port VP1 and the second port VP2 are connected through one of the first conduction chambers 21, the seventh port VP7 and the eighth port VP8 are connected through another first conduction chamber 21, at least one of the fifth port VP5 and the ninth port VP9 is connected to the fourth port VP4 through another first conduction chamber 21, the connecting channel 13 and the third conduction chamber 31, the sixth port VP6 and the third port VP3 are connected through the second conduction chamber 22, Figure 20 , the position of the second valve core 30 is schematically shown when the ninth port VP9 is connected to the communication channel 13 through the third conducting cavity.

[0051] Combine Figure 7 and 21 , the control valve is in the eighth working mode M8, the first valve core 20 rotates to the eighth position, the first port VP1 and the eighth port VP8 are connected through one of the first conduction chambers 21, the second port VP2 and the third port VP3 are connected through another first conduction chamber 21, at least one of the fifth port VP5 and the ninth port VP9 is connected to the sixth port VP6 through another first conduction chamber 21, the communication channel 13 and the third conduction chamber 31, the fourth port VP4 and the seventh port VP7 are connected through the second conduction chamber 22, Figure 20 , the position of the second valve core 30 is schematically shown when the ninth port VP9 and the fifth port VP5 are both connected to the communication channel 13 through the third conducting cavity.

[0052] In some embodiments, in any of the eight working modes of the control valve 1, the rotation angle of the first valve core 20 between two adjacent modes differs by 45 degrees. Figures 14 to 19 As shown, the second valve core 30 rotates to the ninth position, and the fifth port VP5 and the communication channel 13 are connected through the third conducting cavity 31; Figure 20 As shown, the second valve core 30 rotates to the tenth position, and the ninth port VP9 and the communication channel 13 are connected through the third conducting cavity 31; Figure 21 As shown, the second valve core 30 rotates to between the ninth position and the tenth position, and the fifth port VP5 and the ninth port VP9 are both communicated with the communication channel 13 through the third conducting cavity 31 .

[0053] It is understandable that when the control valve has a greater number of valve ports, in order to achieve switching of conduction modes between the multiple valve ports, the control valve may further include three valve cores or more valve cores, which is not limited in the present invention.

[0054] In summary, the control valve 1 provided according to an embodiment of the present invention includes a valve body 10, a first valve core 20 and a second valve core 30. The valve body 10 has a first chamber 11, a second chamber 12 and a communicating channel 13 connecting the first chamber 11 and the second chamber 12. At least a portion of the first valve core 20 is located in the first chamber 11, and at least a portion of the second valve core 30 is located in the second chamber 12. The control valve 1 has a first channel 101 communicating with the first chamber 11 and a second channel 102 communicating with the second chamber 12. By rotating the first valve core 20 and / or the second valve core 30, at least two first channels 101 corresponding to the first conducting cavity 21 of the first valve core 20 can be connected, and the first channel 101 corresponding to the second conducting cavity 22 can be connected through the communicating channel 13 and the third conducting cavity 31 of the second valve core 30. In this way, the control valve 1 can enable different communication modes between multiple valve ports, so that one control valve 1 can control multiple flow paths, which is more convenient and compact when used.

[0055] 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, with respect to the directional definitions of “front”, “back”, “left”, “right”, “up” and “down”, although this specification has described the present invention in detail with reference to the above embodiments, it should be understood by those skilled in the art that the present invention can still be modified, combined or replaced by equivalents, and all technical solutions and improvements thereof that do not depart from the spirit and scope of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A control valve, characterized in that: The control valve comprises a valve body, a first valve core and a second valve core, the control valve having a first chamber, a second chamber and a communicating channel connecting the first chamber and the second chamber, the arrangement direction of the first chamber and the second chamber intersecting with the height direction of the control valve, the valve body comprising a first side wall portion and a second side wall portion, the first side wall portion being the peripheral wall of the first chamber or at least a part of the peripheral wall, the second side wall portion being the peripheral wall of the second chamber or at least a part of the peripheral wall, the control valve having a first channel and a second channel, one end of the first channel passes through the first side wall portion to form a first communicating port, the other end of the first channel passes through the outer surface of the control valve to form a first valve port, the first communicating port being capable of communicating with the first chamber, one end of the second channel passes through the second side wall portion to form a second communicating port, the other end of the second channel passes through the outer surface of the control valve to form a second valve port, the second communicating port being capable of communicating with the second chamber, At least a portion of the first valve core is located in the first chamber and is rotatable, and at least a portion of the second valve core is located in the second chamber and is rotatable. The rotation axis of the first valve core is parallel to the rotation axis of the second valve core. The first valve core includes a first and a second isolated conducting cavity. The first conducting cavity is a groove structure that is recessed from the outer circumferential surface of the first valve core to the interior of the first valve core. The second conducting cavity passes through the first valve core. The second valve core includes a third conducting cavity. The third conducting cavity is a groove structure that is recessed from the outer circumferential surface of the second valve core to the interior of the second valve core. The corresponding at least two first valve ports are connected through at least one of the first conducting cavity and the second conducting cavity and the first connecting port; and the corresponding first valve port and the second valve port are connected through one of the first conducting cavity and the second conducting cavity, the first connecting port, the connecting channel, the third conducting cavity and the second connecting port.

2. The control valve according to claim 1, characterized in that The control valve further includes a first drive shaft and a second drive shaft, wherein the first drive shaft is integrally formed with the first valve core or is in transmission connection with the second drive shaft, and the second drive shaft is integrally formed with the second valve core or is in transmission connection with the second valve core. The first drive shaft drives the first valve core to rotate to any position, one of the first conduction cavity and the second conduction cavity is connected to the connecting channel, and the second drive shaft can drive the second valve core to rotate so that at least one of the second valve ports is connected to the connecting channel.

3. The control valve according to claim 2, characterized in that The control valve includes a first driving member and a second driving member. The first driving member is in driving connection with the first driving shaft, and the second driving member is in driving connection with the second driving shaft. The first driving member and the second driving member can operate independently.

4. The control valve according to claim 1, wherein: There are two second channels and two second valve ports, and rotating the second valve core can connect at least one of the two second valve ports to the communication channel.

5. The control valve according to claim 4, characterized in that One first conducting cavity penetrates the outer circumferential surface of the first valve core to form a first conducting port, and one second conducting cavity penetrates the outer circumferential surface of the first valve core to form two second conducting ports. Along the circumferential direction of the first valve core, there is at least one first conducting port between the two second conducting ports. Along the radial direction of the first valve core, the second conducting cavity is closer to the axis of the first valve core than the first conducting cavity.

6. The control valve according to claim 5, characterized in that There are seven first channels, seven first valve ports, and seven first communication openings. The communication channels penetrate the first side wall portion to form first orifices. The seven first communication openings and the first orifices are evenly distributed along the circumference of the first side wall portion. The number of the first conducting cavities is three, the number of the second conducting cavities is one, two of the three first conducting cavities are adjacently arranged and located on one side of the first valve core along the radial direction of the first valve core, and the second conducting cavity and one first conducting cavity are located on the other side of the radial direction of the first valve core.

7. The control valve according to claim 6, characterized in that The seven first channels form seven first communication ports, namely, a first port, a second port, a third port, a fourth port, a sixth port, a seventh port, and an eighth port. The first port, the second port, the third port, the fourth port, the first orifice, the sixth port, the seventh port, and the eighth port are arranged sequentially along the circumferential direction of the first side wall portion. The two second channels form two second communication ports, namely, a fifth port and a ninth port. The control valve includes at least one of the following eight operating modes: In a first operating mode, the first valve core rotates to a first position, the first port and the second port are communicated through one of the first conducting cavities, the third port and the fourth port are communicated through another of the first conducting cavities, the sixth port and the seventh port are communicated through another of the first conducting cavities, and at least one of the fifth port and the ninth port is communicated with the eighth port through the second conducting cavity, the communicating passage, and the third conducting cavity. In the second operating mode, the first valve core rotates to the second position, the third port and the second port are in communication with each other through one of the first conducting cavities, at least one of the fifth port and the ninth port is in communication with the fourth port through another of the first conducting cavities, the communicating passage, and the third conducting cavities, the seventh port and the eighth port are in communication with each other through another of the first conducting cavities, and the sixth port and the first port are in communication with each other through the second conducting cavities; In a third operating mode, the first valve core rotates to a third position, the first port and the eighth port are communicated with each other through one of the first conducting cavities, the third port and the fourth port are communicated with each other through another of the first conducting cavities, at least one of the fifth port and the ninth port is communicated with the sixth port through another of the first conducting cavities, the communicating passage, and the third conducting cavities, and the second port and the seventh port are communicated with each other through the second conducting cavities. In a fourth operating mode, the first valve core rotates to a fourth position, the first port and the second port are in communication with each other through one of the first conducting cavities, at least one of the fifth port and the ninth port is in communication with the fourth port through another of the first conducting cavities, the communicating passage, and the third conducting cavities, the sixth port and the seventh port are in communication with each other through another of the first conducting cavities, and the third port and the eighth port are in communication with each other through the second conducting cavities. In a fifth operating mode, the first valve core rotates to a fifth position, the third port and the second port are communicated with each other through one of the first conduction cavities, the seventh port and the eighth port are communicated with each other through another of the first conduction cavities, at least one of the fifth port and the ninth port is communicated with the sixth port through another of the first conduction cavities, the communication passage, and the third conduction cavities, and the first port and the fourth port are communicated with each other through the second conduction cavities. In a sixth operating mode, the first valve core rotates to a sixth position, the first port and the eighth port are communicated with each other through one of the first conduction cavities, the third port and the fourth port are communicated with each other through another of the first conduction cavities, the sixth port and the seventh port are communicated with each other through another of the first conduction cavities, and at least one of the fifth port and the ninth port is communicated with the second port through the second conduction cavity, the communication passage, and the third conduction cavity. In the seventh operating mode, the first valve core rotates to the seventh position, the first port and the second port are communicated through one of the first conduction cavities, the seventh port and the eighth port are communicated through another of the first conduction cavities, at least one of the fifth port and the ninth port is communicated with the fourth port through another of the first conduction cavities, the communication channel, and the third conduction cavity, and the sixth port and the third port are communicated through the second conduction cavity. In the eighth working mode, the first valve core rotates to the eighth position, the first port and the eighth port are communicated through one of the first conducting cavities, the second port and the third port are communicated through another first conducting cavity, at least one of the fifth port and the ninth port is communicated with the sixth port through another first conducting cavity, the communicating channel and the third conducting cavity, and the fourth port and the seventh port are communicated through the second conducting cavity.

8. The control valve according to claim 7, characterized in that In any one of the eight working modes of the control valve, the second valve core rotates to the ninth position, the fifth port and the communicating channel are communicated through the third conducting cavity, the second valve core rotates to the tenth position, the ninth port and the communicating channel are communicated through the third conducting cavity, and the second valve core rotates between the ninth position and the tenth position, the fifth port and the ninth port are both communicated with the communicating channel through the third conducting cavity.

9. The control valve according to any one of claims 1 to 8, characterized in that: The main body of the first valve core is a columnar structure. The control valve further includes a first sealing member, which is located in the first chamber and between the first side wall portion and the outer surface of the first valve core. The first sealing member includes the same number of openings as the first communication ports. The first communication ports are connected to the first chamber through the openings. The control valve also includes a limiting portion, which is fixedly connected to the valve body. At least part of the limiting portion protrudes from the first side wall portion and is located in the first chamber. The two ends of the first sealing member in the circumferential direction are limited by the limiting portion to limit the rotation of the first sealing member.

10. The control valve according to any one of claims 1 to 8, characterized in that: The main body of the second valve core is a spherical structure. The control valve further includes second sealing members having the same number as the second communication ports. The second sealing members are located between the inner surface of the second side wall portion and the second valve core. The second sealing member includes an elastic member and a sealing block. The sealing block includes a first sub-block and a second sub-block that are integrally formed and arranged along the axial direction of the sealing block. The elastic member is sleeved on the outer peripheral side of the second sub-block. The first sub-block is located between the elastic member and the outer surface of the second valve core and forms a first sealing surface with the outer surface of the second valve core. The elastic member is located between the first sub-block and the inner surface of the second side wall portion and forms a second sealing surface with the inner surface of the second side wall portion. The elastic member has a first channel, which is connected to the second channel, and the elastic member includes a main body, a first extension part and a second extension part, the first extension part surrounds one end of the main body in the thickness direction, and the second extension part surrounds the other end of the main body in the thickness direction, and the first extension part and the second extension part are arranged at intervals, the first extension part and the second extension part are both arranged obliquely with respect to the main body, and the first extension part forms a part of the first channel.

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