Valve spool structure and multi-way valve

Abstract

Disclosed are a valve spool structure and a multi-way valve. The valve spool structure (10) is rotatably arranged within a valve body (20) of a multi-way valve and is provided with a plurality of mutually-spaced flow passages; each flow passage comprises a flow cavity and flow ports connected to two ends of the flow cavity; a force exerted on the valve spool structure (10) by fluids within part of the flow cavities is F1 while a force exerted on the valve spool structure (10) by the fluids within the other part of the flow cavities is F2, the directions of the F1 and the F2 being opposite, resulting in an overall force balance of the valve spool structure (10). The present solution enables impact forces exerted by fluids on the valve spool structure (10) to be in both upward and downward directions, which helps to maintain the force balance of the valve spool structure (10), so as to avoid the problem that multi-way valves are prone to internal leakage because valve spool structures (10) subjected to fluid impact forces of a same direction undergo force imbalance and are liable to oscillate or be ejected upwardly, thus achieving internal force balance of the interior of the valve spool structure (10) during fluid flowing.

Description

Valve core structure and multi-way valve

[0001] This application claims priority to a patent application filed with the State Intellectual Property Office on February 5, 2024, with application number 202420281620.6 and title “Valve Core Structure and Multi-way Valve”;

[0002] This application claims priority to a patent application filed with the State Intellectual Property Office on February 5, 2024, with application number 202420281428.7 and title “Multi-port Valve”;

[0003] This application claims priority to the patent application filed with the State Intellectual Property Office on February 2, 2024, with application number 202420264849.9 and invention name “Actuator”. Technical Field

[0004] The present application relates to the technical field of multi-way valves, and in particular to a valve core structure and a multi-way valve. Background Art

[0005] Conventional multi-way valves consist of a valve body and a valve core. Fluid entering the valve body impacts the valve core, creating an unbalanced force on the valve core. This fluid force can easily cause the valve core to shift, reducing the sealing performance between the valve core and the valve body. Reducing the instability of the force applied to the valve core is the technical problem addressed by this application. Summary of the Invention

[0006] The present application provides a valve core structure and a multi-way valve to solve the problem in the prior art that the fluid impact force on the valve core structure is in the same direction and easily causes the valve core structure to move or be lifted, thereby causing the multi-way valve to easily leak internally.

[0007] In order to solve the above problems, according to one aspect of the present application, the present application provides a valve core structure, the valve core structure has a plurality of flow channels spaced apart from each other, the flow channels include a flow cavity and a flow port connected to both ends of the flow cavity, the force acting on the valve core structure by the fluid in part of the flow cavity is F1, and the force acting on the valve core structure by the fluid in another part of the flow cavity is F2, and the directions of F1 and F2 are opposite.

[0008] Furthermore, the valve core structure includes a top plate and a bottom plate, and the flow ports of multiple flow channels are all located on the bottom plate of the valve core structure and distributed along the circumference of the valve core structure; the top of part of the flow cavity is the top plate of the valve core structure, and the bottom has a flow port and an opening connected to the flow port; the bottom of another part of the flow cavity is the bottom plate of the valve core structure, and the top has an opening connected to the flow port; the fluid flowing through the flow cavity whose top is the top plate of the valve core structure applies an upward thrust to the valve core structure, and the fluid flowing through the flow cavity whose bottom is the bottom plate of the valve core structure applies a downward pressure on the valve core structure.

[0009] Furthermore, the multiple circulation channels include a first circulation channel and a second circulation channel, the valve core structure has an inner cavity and an outer cavity spaced apart from each other, the circulation port of the first circulation channel and the circulation port of the second circulation channel are both arranged on the bottom plate of the valve core structure corresponding to the outer cavity, the circulation cavity of the first circulation channel is formed by the inner cavity and the outer cavity, the top of the inner cavity and the top of the outer cavity are both the top plate of the valve core structure, the bottom of the inner cavity is an opening, and the bottom of the outer cavity has a circulation port; the circulation cavity of the second circulation channel is formed by the outer cavity, the bottom of a part of the outer cavity has a circulation port, the bottom of another part of the outer cavity is the bottom plate of the valve core structure, and the top of the outer cavity is an opening.

[0010] Furthermore, the valve core structure also includes an inner cylinder, a middle cylinder, an outer cylinder and multiple radial partitions. The area between the inner cylinder and the middle cylinder forms an inner cavity, and the area between the middle cylinder and the outer cylinder forms an outer cavity. The radial partitions are arranged between the middle cylinder and the outer cylinder at intervals along the circumference of the valve core structure and divide the outer cavity into multiple sub-cavities with opposite opening directions, wherein the two sub-cavities of the circulation cavity for forming the first circulation channel are spaced in the circumferential direction of the valve core structure, the bottoms of the sub-cavities are both circulation ports, and the tops of the sub-cavities are both top plates of the valve core structure; there is only one sub-cavity of the circulation cavity for forming the second circulation channel, and the top of the sub-cavity is open, and the bottom includes the bottom plate of the valve core structure located between the two circulation ports of the second circulation channel.

[0011] Furthermore, the top plate of part of the valve core structure is arranged at the top openings of the outer cavity and the inner cavity, and the bottom plate of part of the valve core structure is arranged at the bottom opening of the outer cavity. The radial partition is connected to the top plate and the bottom plate at both ends along the axial direction of the valve core structure respectively, and multiple flow ports are arranged on the bottom plate. The top plate forms the bottom wall of the flow cavity of the first flow channel, and the bottom plate is used to form the bottom wall of the flow cavity of the second flow channel.

[0012] According to another aspect of the present application, a multi-way valve is provided, which includes a valve body, a valve core sealing gasket, an executive drive assembly and the above-mentioned valve core structure. The bottom of the valve body has a plurality of flow holes distributed along the circumferential direction. The valve core structure is arranged at the bottom of the cavity of the valve body. Any flow port corresponds to a flow hole. At least one flow cavity with a top opening is connected to the cavity of the valve body. The valve core sealing gasket is arranged between the valve body and the valve core structure. The executive drive assembly is arranged on the valve body and is driven and connected to the valve core structure to drive the valve core structure to rotate and adjust the flow condition of the multi-way valve.

[0013] Furthermore, the multi-way valve also includes a limit assembly, an elastic member and a valve core shaft. The valve core shaft is located in the valve body and one end is fixedly arranged at the bottom of the valve body's cavity. The valve core structure is sleeved on the outer periphery of the valve core shaft and is rotatably arranged in the valve body. The limit assembly is arranged on the valve core shaft and is located on the side of the valve core structure away from the bottom of the valve body's cavity. The two ends of the elastic member are respectively in contact with the limit assembly and the valve core structure to press the valve core structure onto the valve core sealing gasket and press the valve core sealing gasket to the bottom of the valve body's cavity.

[0014] Furthermore, the limit assembly includes a retaining spring and a gasket sleeved on the valve core shaft. The two ends of the elastic member are respectively in contact with the gasket and the top surface of the valve core structure. An annular retaining groove is provided on the outer periphery of the valve core shaft. The retaining spring is retained in the annular retaining groove to limit the position of the retaining spring on the valve core shaft. The gasket cooperates with the retaining spring stopper.

[0015] Furthermore, the valve core structure has a first limiting groove on the side facing away from the bottom of the cavity of the valve body, at least part of the valve core shaft is located in the first limiting groove, the gasket and the elastic member are both located in the first limiting groove, the two ends of the elastic member are respectively abutted against the gasket and the bottom wall of the first limiting groove, and a stop step is provided in the first limiting groove, and the side of the gasket facing away from the retaining spring cooperates with the stop step.

[0016] Furthermore, the first limiting groove includes a first groove section and a second groove section connected to each other, the radial dimension of the first groove section is larger than that of the second groove section, the first groove section is located on the side of the valve core structure away from the bottom of the cavity of the valve body, the gasket is movably arranged in the first groove section, and a part of the elastic member is telescopically arranged in the second groove section. The connection position of the first groove section and the second groove section forms a stop step, and the gasket and the inner wall limiter of the first groove section cooperate with each other and cooperate with the bottom wall stop of the first groove section.

[0017] Furthermore, the inner cylinder of the valve core structure has a first limiting groove with an upward opening, and the execution drive assembly includes a driving shaft, one end of which penetrates into the cavity of the valve body, and the end of the driving shaft that penetrates into the cavity of the valve body is limitedly matched with the first limiting groove.

[0018] Furthermore, the bottom of the driving shaft has a second limiting groove, and a plurality of mating parts are distributed circumferentially at one end of the driving shaft that penetrates into the valve body cavity. The side of the valve core structure that is away from the bottom of the cavity of the valve body has a mated part, and the mating part and the mated part are limitedly matched to clamp the driving shaft and the inner cylinder.

[0019] Furthermore, the mating portion is a snap-fitting protrusion, and the mated portion includes a first limiting groove and a plurality of limiting slots circumferentially spaced around the opening edge of the first limiting groove, and the plurality of snap-fitting protrusions are arranged in the plurality of limiting slots in a one-to-one correspondence.

[0020] Furthermore, the execution drive assembly includes an actuator, which includes a housing, a power source, a gear set, a magnetic component and a control board. The power source is connected to the housing, and the gear set is connected to the power source. The gear set includes at least an input gear and an output gear. The power source can drive the output gear to rotate through the input gear. The output gear is used to connect to the valve core structure, and the magnetic component is installed on the output gear. A position detection sensor is provided on the control board, and the position detection sensor is located between the magnetic component and the control board and is directly opposite to the magnetic component.

[0021] Furthermore, an axial end of the output gear is provided with a receiving groove, and the magnetic member is located in the receiving groove.

[0022] Furthermore, the shell is provided with a first limiting portion, and one end of the first limiting portion passes through the control board and abuts against the output gear; the part of the output gear forming the accommodating groove and the magnetic component are both located in the cavity surrounded by the first limiting portion.

[0023] Furthermore, the shell includes an upper shell and a lower shell, which are connected and enclosed to form a accommodating cavity for accommodating the power source and the gear set; the first limiting portion is located on the inner wall of the lower shell facing the upper shell, and the first limiting portion is movably connected to the output gear and can limit the radial movement of the output gear.

[0024] Furthermore, the shell includes an upper shell and a lower shell, which are connected and enclosed to form a accommodating cavity for accommodating the power source and the gear set; a second limiting portion is provided on the inner wall of the upper shell facing the lower shell, and the second limiting portion is movably connected to the output gear and can limit the radial movement of the output gear.

[0025] Furthermore, a limiting boss is provided on the inner wall of the upper shell facing the lower shell and is coaxially arranged with the output gear. A positioning groove is provided on the side of the limiting boss facing the output gear, and a through-hole is provided at the bottom of the positioning groove. Part of the output gear can pass through the positioning groove and extend into the through-hole. The limiting boss and the through-hole form a second limiting portion.

[0026] Furthermore, at least two wires are provided between the power source and the control board; an electric clamp is provided at one end of the wire, which is clamped to the power supply terminal of the power source; a pin is provided at the other end of the wire, which is clamped to the control board; the actuator also includes a connector, which is clamped to the control board through the pin.

[0027] By applying the technical solution of the present application, a valve core structure having a plurality of mutually spaced flow channels is provided, wherein the flow channels include a flow cavity and a flow port connected to both ends of the flow cavity. The force exerted on the valve core structure by the fluid in part of the flow cavity is F1, and the force exerted on the valve core structure by the fluid in another part of the flow cavity is F2, and the directions of F1 and F2 are opposite.

[0028] By adopting this solution, the directions of the impact force of the fluid passing through the valve core structure on the valve core structure are upward and downward, which is beneficial to maintaining the force balance of the valve core structure, avoiding the situation in the prior art where the fluid impact force on the valve core structure is in the same direction and easily causes the valve core structure to be unbalanced and move or be lifted, thereby causing the multi-way valve to be prone to internal leakage, and realizing the internal force balance of the valve core structure when the fluid flows through it. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings that constitute part of this application are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation on this application. In the drawings:

[0030] FIG1 shows a schematic structural diagram of a valve core structure provided in an embodiment of the present application;

[0031] FIG2 is a schematic structural diagram of the valve core structure of FIG1 from another perspective;

[0032] FIG3 shows a bottom view of the valve core structure of FIG1 ;

[0033] FIG4 shows a top view of the valve core structure of FIG1 ;

[0034] FIG5 shows a schematic structural diagram of a multi-way valve provided by another embodiment of the present application;

[0035] FIG6 shows an exploded view of the multi-way valve of FIG5 ;

[0036] FIG7 shows a cross-sectional view of the multi-way valve of FIG5 ;

[0037] FIG8 shows an enlarged view of a selected location in FIG7 ;

[0038] FIG9 shows a bottom view of the multi-way valve of FIG5 ;

[0039] FIG10 shows a schematic structural diagram of the retaining spring of the multi-way valve of FIG5 ;

[0040] FIG11 is a schematic structural diagram of a driving shaft of the multi-way valve of FIG5 ;

[0041] FIG12 shows a schematic structural diagram of the actuator drive assembly of the multi-way valve of FIG1 ;

[0042] FIG13 is a schematic diagram showing the internal structure of the execution drive component of FIG12;

[0043] FIG14 shows a cross-sectional view of the actuator drive assembly of FIG12 ;

[0044] FIG15 is a schematic diagram showing a partial structure of the execution drive component of FIG12;

[0045] FIG16 is a schematic diagram showing a partial structure of a power source of the actuator drive assembly of FIG12 ;

[0046] FIG. 17 is a partial structural diagram showing a power source and connectors of the actuator drive assembly of FIG. 12 .

[0047] The above drawings include the following reference numerals: 10, valve core structure; 101, first circulation channel; 1011, first circulation cavity; 1012, first circulation port; 102, second circulation channel; 1021, second circulation cavity; 1022, second circulation port; 103, weight reduction cavity; 104, inner cavity; 105, outer cavity; 11, inner cylinder; 111, first limiting groove; 1111, first groove section; 1112, second groove section; 112, limiting clamping groove; 12, middle cylinder; 13, outer cylinder; 14, radial partition; 15, top plate; 16, bottom plate; 20, valve body; 201, circulation hole; 21, valve seat; 22, valve cover; 31, valve core sealing gasket; 32, flat sealing gasket; 33, first sealing ring; 40, actuator assembly; 41. Drive shaft; 411. Second limiting groove; 412. Clamping protrusion; 42. Housing; 421. Upper housing; 4211. Limiting boss; 4212. Positioning groove; 4213. Perforation; 4214. Second limiting portion; 422. Lower housing; 4221. First limiting portion; 423. Accommodating chamber; 43. Power source; 431. Worm; 432. Output shaft; 433. Wire; 434. Power supply terminal; 435. Electric clamp; 44. Gear set; 441. Input gear; 442. Output gear; 4421. Ring groove; 4422. Accommodating groove; 443. Transmission gear; 444. Gear shaft; 445. Second sealing ring; 45. Magnetic member; 46. Control panel; 461. Hollow; 462. Connecting hole; 47. Insertion pin; 471. Deformation hole; 48. Connector; 49. Position detection sensor; 50. Limit assembly; 51. Circlip; 511. Snap ring; 512. Snap groove; 52. Gasket; 60. Elastic member; 70. Valve core shaft; 71. Annular snap groove. DETAILED DESCRIPTION

[0048] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0049] As shown in Figures 1 to 4, an embodiment of the present application provides a valve core structure 10. The valve core structure 10 is rotatably disposed within the valve body 20 of a multi-way valve and has multiple spaced-apart flow channels. The flow channels include a flow cavity and flow ports connected to both ends of the flow cavity. The fluid in one portion of the flow cavity acts on the valve core structure with a force F1, while the fluid in another portion of the flow cavity acts on the valve core structure with a force F2, with F1 and F2 acting in opposite directions. Specifically, the valve core structure 10 includes a top plate 15 and a bottom plate 16. The flow ports of the multiple flow channels are all located on the bottom plate 16 of the valve core structure 10 and distributed along the circumference of the valve core structure 10. The top of one portion of the flow cavity is the top plate 15 of the valve core structure 10, and the bottom portion has a flow port and an opening connected to the flow port, i.e., the opening faces downward. The bottom of another portion of the flow cavity is the bottom plate 16 of the valve core structure 10, where the flow port is located, and the top portion has an opening connected to the flow port, i.e., the opening faces upward. The bottom wall of the portion of the flow cavity with the downward-facing opening is located above the flow cavity opening. The bottom wall of the other portion of the flow chamber, which opens upward, is located below its opening. That is, the bottom walls of the two flow chambers are positioned opposite each other in the axial direction of the valve core structure 10 relative to their respective flow chamber openings. Fluid flowing through the flow chamber, which forms the top plate 15 of the valve core structure 10, exerts an upward thrust on the valve core structure 10, while fluid flowing through the flow chamber, which forms the bottom plate 16 of the valve core structure 10, exerts a downward pressure on the valve core structure 10, thereby ensuring a balanced force on the entire valve core structure 10.

[0050] In this embodiment, the bottom walls of the two parts of the flow channels are arranged in opposite positions relative to the openings of their respective flow cavities, so that the directions of the impact force of the fluid passing through the valve core structure 10 on the valve core structure 10 are upward and downward, which is beneficial to maintaining the force balance of the valve core structure, avoiding the situation in the prior art where the valve core structure 10 is subjected to the same direction of the fluid impact force, which easily causes the valve core structure 10 to be subjected to unbalanced force and move or be lifted up, thereby causing the multi-way valve to be prone to internal leakage, and realizing the internal force balance of the valve core structure 10 when the fluid flows through it.

[0051] As shown in Figures 1 to 4, the plurality of circulation channels include a first circulation channel 101 and a second circulation channel 102. The valve core structure 10 has an inner cavity 104 and an outer cavity 105 spaced apart from each other. The circulation openings of the first circulation channel 101 and the circulation openings of the second circulation channel 102 are both located on the bottom plate 16 of the valve core structure 10 corresponding to the outer cavity 105. The circulation chamber of the first circulation channel 101 is formed by the inner cavity 104 and the outer cavity 105. The tops of the inner cavity 104 and the outer cavity 105 are both the top plate 15 of the valve core structure 10. The bottom of the inner cavity 104 is open, and the bottom of the outer cavity 105 has a circulation opening. The circulation chamber of the second circulation channel 102 is formed by the outer cavity 105, which is open upward. The bottom of a portion of the outer cavity 105 has a circulation opening, while the bottom of another portion of the outer cavity 105 is the bottom plate 16 of the valve core structure 10. The top of the outer cavity 105 is open.

[0052] In this embodiment, the first circulation channel 101 includes a first circulation cavity 1011 and two first circulation ports 1012 communicating with the ends of the first circulation cavity 1011. The second circulation channel 102 includes a second circulation cavity 1021 and two second circulation ports 1022 communicating with the ends of the second circulation cavity 1021. The first circulation cavity 1011 opens downward, while the second circulation cavity 1021 opens upward. In this embodiment, the first circulation cavity 1011 is composed of an outer cavity 105 and an inner cavity 104, while the second circulation cavity 1021 is composed only of the outer cavity 105. This helps ensure the spacing between the first circulation cavity 1011 and the second circulation cavity 1021, as well as the structural strength of the valve core structure 10, and also facilitates the design of the two circulation cavity openings in opposite directions. The first circulation channel 101 is a groove-shaped channel with a cavity bottom wall at the top and a completely open bottom. The impact force of the fluid in the first circulation channel 101 on the valve core structure 10 is always upward. The second circulation cavity 1021 is completely open at the top and has a groove-shaped channel on the bottom wall of the cavity. The impact force of the fluid in the second circulation cavity 1021 on the valve core structure 10 is always downward.

[0053] As shown in Figures 1 to 4, the valve core structure 10 further includes an inner cylinder 11, a middle cylinder 12, an outer cylinder 13, and a plurality of radial partitions 14. The area between the inner cylinder 11 and the middle cylinder 12 forms an inner cavity 104, and the area between the middle cylinder 12 and the outer cylinder 13 forms an outer cavity 105. The radial partitions 14 are arranged between the middle cylinder 12 and the outer cylinder 13 at intervals along the circumference of the valve core structure 10 and divide the outer cavity 105 into a plurality of sub-cavities with opposite opening directions. The two sub-cavities of the circulation cavity for forming the first circulation channel 101 are spaced apart circumferentially of the valve core structure 10, and the bottoms of the sub-cavities are both circulation ports, and the top is the top plate 15 of the valve core structure. The circulation cavity for forming the second circulation channel 102 is a single sub-cavity, and the top of the sub-cavity is open, and the bottom includes the bottom plate 16 of the valve core structure 10 located between the two circulation ports.

[0054] Such an arrangement facilitates the formation of the inner cavity 104, the outer cavity 105, and the multiple sub-cavities of the outer cavity 105, and is also conducive to the formation of the first circulation cavity 1011 and the second circulation cavity 1021. Specifically, the valve core structure 10 in this embodiment is divided into multiple sectors at equal angles (40°) along the circumference, and the sub-cavities between any two adjacent radial partitions correspond to at least one sector. In this embodiment, the two sub-cavities used to form the first circulation cavity 1011 each correspond to a sector, and a sector is arranged across the two sub-cavities. The inner cavity 104 is an annular cavity, and the two sub-cavities are connected to the inner cavity 104 at different positions in the circumference, so as to connect the two sub-cavities through the inner cavity 104 and form the first circulation cavity 1011 together. The sub-cavity used to form the second circulation cavity 1021 includes three consecutively adjacent sectors, and the three sectors are connected in sequence.

[0055] Furthermore, part of the top plate 15 is arranged at the top openings of the outer cavity 105 and the inner cavity 104, and part of the bottom plate 16 is arranged at the bottom opening of the outer cavity 105. The radial partition 14 is connected to the top plate 15 and the bottom plate 16 at both ends along the axial direction of the valve core structure 10, respectively. Multiple flow ports are all arranged on the bottom plate 16. The top plate 15 forms the bottom wall of the flow cavity of the first flow channel 101, and the bottom plate 16 is used to form the bottom wall of the flow cavity of the second flow channel 102. This arrangement facilitates the formation of the bottom walls of the first flow cavity 1011 and the second flow cavity 1021, and ensures the balanced impact effect of the fluid on the valve core structure 10 as a whole. Specifically, the top plate 15 in this embodiment forms the bottom wall of all the sub-cavities of the inner cavity 104 and the outer cavity 105 that open downward, and the part of the bottom plate 16 that avoids multiple flow ports forms the bottom wall of all the sub-cavities of the outer cavity 105 that open upward. As shown in Figures 1 to 4, the second circulation cavity 1021 (second circulation channel 102) is arranged across three sector-shaped areas and a bottom plate 16 for forming the bottom wall of the second circulation cavity 1021 is arranged at the bottom of the sub-cavity corresponding to the middle sector-shaped area, and the two second circulation ports 1022 of the second circulation channel 102 correspond to the sub-cavities corresponding to the left and right sector-shaped areas respectively; the first circulation cavity 1011 (first circulation channel 101) is arranged across four sector-shaped areas and a top plate 15 is provided at the top of the four sector-shaped areas, a bottom plate 16 is provided at the bottom of the sub-cavities corresponding to the two middle sector-shaped areas, and the two second circulation ports 1022 of the first circulation channel 101 correspond to the sub-cavities corresponding to the two sector-shaped areas at the left and right ends respectively.

[0056] In this embodiment, except for the sub-cavities forming the first circulation cavity 1011 and the second circulation cavity 1021, the openings of the remaining sub-cavities all face upward, and the bottom wall of the cavity is formed by the bottom plate 16. This arrangement ensures that at most one side of any sector in the axial direction of the valve core structure 10 is blocked by the top plate 15 or the bottom plate 16, which helps to achieve a lightweight valve core structure 10.

[0057] In summary, the first circulation chamber 1011 of the first circulation channel 101 is a strip-shaped groove-shaped chamber surrounded by an inner chamber 104, two downward-opening outer chambers 105, and a top plate 15. Two first circulation ports 1012 communicating with the two ends of the first circulation chamber 1011 are provided on the bottom plate 16 and are respectively communicated with the two downward-opening outer chambers 105. The impact force of the fluid in the first circulation channel 101 on the valve core structure 10 acts on the top plate 15, and the impact force on the valve core structure 10 is always upward. The second circulation chamber 1021 of the second circulation channel 102 is a strip-shaped groove-shaped chamber surrounded by an upward-opening outer chamber 105 spanning three sector-shaped areas and a bottom plate 16. The two second circulation ports 1022 communicating with the two ends of the second circulation chamber 1021 are both provided on the bottom plate 16 and correspond to the two spaced sector-shaped areas used to form the second circulation chamber 1021. The impact force of the fluid in the second circulation channel 102 on the valve core structure 10 acts on the bottom plate 16, and the impact force on the valve core structure 10 is always downward.

[0058] In this embodiment, the first circulation channel 101 and the second circulation channel 102 are located at the same height of the valve core structure 10. This arrangement is conducive to miniaturization of the valve core structure 10 and avoids the need for the valve core structure 10 to have multiple layers to design multiple circulation channels.

[0059] Preferably, the valve core structure 10 also has multiple weight-reducing cavities 103 with top openings. These cavities are arranged to avoid the flow cavities of the first circulation channel 101 and the second circulation channel 102. This arrangement facilitates lightweighting of the valve core structure 10. The weight-reducing cavities 103 in this embodiment are sub-cavities other than those forming the first circulation cavity 1011 and the second circulation cavity 1021.

[0060] As shown in Figures 5 to 17, another embodiment of the present application provides a multi-way valve, which includes a valve body 20, a valve core sealing gasket 31, an executive drive assembly 40 and the above-mentioned valve core structure 10. The bottom of the valve body 20 has multiple flow holes 201 distributed along the circumferential direction. The valve core structure 10 is arranged at the bottom of the cavity of the valve body 20. Any flow port corresponds to a flow hole 201. The valve core sealing gasket 31 is arranged between the valve body 20 and the valve core structure 10 around the multiple flow holes 201. The executive drive assembly 40 is arranged on the valve body 20 and is driven and connected to the valve core structure 10 to drive the valve core structure 10 to rotate and adjust the flow condition of the multi-way valve.

[0061] In this embodiment, the valve core sealing gasket 31 is used to seal the valve body 20 and the valve core structure 10, that is, to seal the edges of the multiple flow holes 201 and the edges of the flow openings of the flow channels, thereby preventing the fluid from leaking from the gap between the flow openings and the flow holes 201, thereby preventing leakage within the multi-way valve. The actuator assembly 40 drives the valve core structure 10 to rotate and adjust the correspondence between the multiple flow channels and the multiple flow holes 201, thereby adjusting the flow conditions of the multi-way valve. Furthermore, the valve core structure 10 of this embodiment allows the impact force of the fluid passing through the valve core structure 10 on the valve core structure 10 to be directed upward and downward, thereby achieving internal force balance within the valve core structure 10 when the fluid flows through it.

[0062] Specifically, at least one of the top-opening flow chambers is connected to the cavity of the valve body 20, and the remaining flow chambers are separated from the cavity of the valve body 20. This arrangement is conducive to designing the internal balancing channel of the valve core structure 10 according to actual conditions. In this embodiment, the second flow chamber 1021 of the second flow channel 102 opens upward and connects to the cavity of the valve body 20. Since the opening of the sub-chamber used to form the second flow chamber 1021 is upward, that is, there is no top plate 15 to stop the top of the second flow chamber 1021, the fluid enters from one of the second flow ports 1022 and moves upward to the second flow chamber 1021. Since there is no stop at the top of the second flow chamber 1021, the upward flow of the fluid will not be stopped, and no force will be generated to push the valve core structure 10 as a whole upward. Afterwards, the fluid will flow to the other second flow port 1022 under the action of its own weight and the guidance of the second flow chamber 1021 and flow out from the other second flow port 1022. During this process, the fluid in the second circulation chamber 1021 will generate downward pressure on the bottom wall (bottom plate 16) of the second circulation chamber 1021 located between the two second circulation ports 1022. This partial pressure will be balanced with the upward thrust on the valve core structure 10 as a whole generated by the first circulation channel 101. It can be understood that in one embodiment, the first circulation channel 101 only generates a force to push the valve core structure 10 upward, and the second circulation channel 102 only generates a force to press the valve core structure 10 downward.

[0063] As shown in Figures 6 to 8 and 10, the multi-way valve also includes a limit assembly 50, an elastic member 60 and a valve core shaft 70. The valve core shaft 70 is located in the valve body 20 and one end is fixedly set at the bottom of the cavity of the valve body 20. The valve core structure is sleeved on the outer periphery of the valve core shaft 70 and is rotatably set in the valve body 20. The limit assembly 50 is arranged on the valve core shaft 70 and is located on the side of the valve core structure away from the bottom of the cavity of the valve body 20. The two ends of the elastic member 60 are respectively in contact with the limit assembly 50 and the valve core structure to press the valve core structure onto the valve core sealing gasket 31 and press the valve core sealing gasket 31 to the bottom of the cavity of the valve body 20.

[0064] As shown in Figures 5 to 7 and 9, in this embodiment, the valve body 20 is composed of a valve seat 21 and a valve cover 22. The valve seat 21 and the valve cover 22 together surround a cavity of the valve body 20. A plurality of flow holes 201 are provided at the bottom of the valve seat 21. One end of the valve core shaft 70 is fixed to the bottom of the cavity of the valve body 20, and the limit assembly 50 is provided on the valve core shaft 70. This facilitates limiting the relative positions of the valve core shaft 70, the limit assembly 50, and the valve body 20, further ensuring the compression effect of the elastic member 60 on the valve core structure 10. On the other hand, compared with the prior art in which the two ends of the elastic member 60 abut the drive shaft 41 of the actuator drive assembly 40 and the valve core structure 10, respectively, this solution facilitates reducing the height of the area for accommodating the elastic member 60, thereby improving the degree of compression of the elastic member 60 and the downward pressure effect on the valve core structure 10, and avoiding the prior art situation in which the elastic member 60 is prone to insufficient pressure on the valve core structure 10, resulting in easy movement of the valve core structure 10 and further leakage of the multi-way valve. Furthermore, the elastic force at both ends of the elastic member 60 can be transmitted to the valve seat 21 of the valve body 20, while the valve cover 22 is not subjected to any force. The valve seat 21 is stronger than the valve cover 22, and even if the valve seat 21 is subjected to the elastic force of the elastic member 60, it is not easily deformed. Furthermore, the valve cover 22 is not subjected to any force, which prevents the valve cover 22 from deforming due to the elastic force of the elastic member 60. This, in turn, helps improve and ensure the stability of the valve core structure 10 and the accuracy and reliability of the multi-way valve's fluid control. Furthermore, an annular sealing groove for mounting the valve core gasket 31 is provided at the bottom of the valve body 20 cavity. The thickness of the valve core gasket 31 is greater than the groove depth of the annular sealing groove and protrudes beyond the annular sealing groove. Under the action of the limit assembly 50 and the elastic member 60, the valve core structure 10 is pressed downwardly against the valve core gasket 31 located within the valve body 20 cavity, ensuring the sealing effect and reliability of the valve core gasket 31 between the valve body 20 and the valve core structure 10.

[0065] Optionally, the multi-way valve also includes a flat sealing gasket 32 ​​and a first sealing ring 33. The flat sealing gasket 32 ​​is arranged on the side of the bottom of the valve seat 21 away from the valve core structure 10 and surrounds multiple flow holes 201. The first sealing ring 33 is arranged between the drive shaft 41 and the valve cover 22 to ensure the sealing performance of the multi-way valve.

[0066] Specifically, the limit assembly 50 includes a retaining spring 51 and a gasket 52 sleeved on the valve core shaft 70. The two ends of the elastic member 60 are respectively in contact with the gasket 52 and the top surface of the valve core structure. The outer periphery of the valve core shaft 70 is provided with an annular clamping groove 71. The retaining spring 51 is clamped in the annular clamping groove 71 to limit the position of the retaining spring 51 on the valve core shaft 70. The gasket 52 cooperates with the retaining spring 51 as a stop.

[0067] With this arrangement, the end of the elastic member 60 abuts against the gasket 52, which helps to increase the abutment effect between the elastic member 60 and the limit assembly 50. Furthermore, the retaining spring 51 can achieve an upward stop limit on the gasket 52 along the axial direction of the valve core shaft 70, thereby ensuring that the height of the area for placing the elastic member 60 increases the reliability of the compression degree of the elastic member 60. Furthermore, the provision of the annular retaining groove 71 further ensures the relative position of the retaining spring 51, the valve core shaft 70, and the valve body 20, and the compression effect of the elastic member 60 on the valve core structure 10. A certain assembly clearance is provided between the annular retaining groove 71 and the retaining spring 51 to ensure the reliable installation of the retaining spring 51.

[0068] Preferably, in this embodiment, as shown in FIG10 , the retaining spring 51 is a strip-shaped circular ring member with an opening, and the two ends of the retaining spring 51 can move closer to or farther from each other to drive the retaining spring 51 to elastically deform and clamp or release the annular clamping groove 71. It is understood that the retaining spring 51 in this embodiment includes a retaining ring member 511 and a clamping groove member 512. The retaining ring member 511 is a strip-shaped circular ring member with an opening. The area surrounded by the retaining ring member 511 forms a clamping area for clamping the annular clamping groove 71. Two clamping groove members 512 are symmetrically provided at both ends of the retaining ring member 511. The two clamping groove members 512 can move closer to or farther from each other to drive the retaining ring member 511 to elastically deform and open and close the clamping area. With this arrangement, the operator can control the elastic opening and closing of the retaining ring member 511 by adjusting the two clamping groove members 512, which facilitates operation.

[0069] As shown in Figures 2, 6, and 7, the valve core structure has a first limiting groove 111 on the side of the cavity facing away from the bottom of the valve body 20. At least a portion of the valve core shaft 70 is located in the first limiting groove 111. The gasket 52 and the elastic member 60 are both located in the first limiting groove 111. The ends of the elastic member 60 abut the gasket 52 and the bottom wall of the first limiting groove 111, respectively. The first limiting groove 111 has a stop step, and the side of the gasket 52 facing away from the retaining spring 51 engages with the stop step. This arrangement guides and limits the position of the limit assembly 50 through the first limiting groove 111, which helps ensure the coaxiality of the valve core shaft 70, valve body 20, limit assembly 50, and valve core structure 10. The stop step stops the gasket 52, thereby limiting the gasket 52 from moving axially downward along the valve core shaft 70, ensuring the height of the area for accommodating the elastic member 60 and improving the reliability of the compression degree of the elastic member 60.

[0070] Specifically, the first limiting groove 111 includes a first groove section 1111 and a second groove section 1112 which are connected to each other. The radial dimension of the first groove section 1111 is larger than that of the second groove section 1112. The first groove section 1111 is located on the side of the valve core structure away from the bottom of the cavity of the valve body 20. The gasket 52 is movably arranged in the first groove section 1111, and a part of the elastic member 60 is telescopically arranged in the second groove section 1112. The connection position of the first groove section 1111 and the second groove section 1112 forms a stop step. The gasket 52 and the inner wall limiter of the first groove section 1111 cooperate and cooperate with the bottom wall stop of the first groove section 1111.

[0071] In this embodiment, the radial dimension of the gasket 52 is greater than that of the elastic member 60. The gasket 52 is engaged with the inner wall of the first slot section 1111 to guide the movement of the gasket 52, thereby preventing the gasket 52 from deviating or rotating during movement. The elastic member 60 and the inner wall of the second slot section 1112 are engaged to facilitate the installation of the elastic member 60. This arrangement is conducive to ensuring the installation and guidance of the elastic member 60 and the limiting assembly 50, and is also conducive to the formation of the stop step.

[0072] Preferably, the valve core shaft 70 in this embodiment is injection molded and embedded in the bottom of the cavity of the valve body 20. This arrangement facilitates the fixed connection between the valve core shaft 70 and the valve body 20, while helping to reduce assembly time, reduce costs, and increase overall structural strength.

[0073] As shown in Figures 2, 6, and 7, a first limiting groove 111 is formed in the inner cylinder 11 of the valve core structure and opens upward. The actuator drive assembly 40 includes an actuator and a driving shaft 41. One end of the driving shaft 41 penetrates the cavity of the valve body 20. The end of the driving shaft 41 that penetrates the cavity of the valve body 20 is limitedly engaged with the first limiting groove 111. The actuator is connected to the valve core structure through the driving shaft 41. This arrangement is conducive to ensuring the reliability and stability of the driving shaft 41 driving the valve core structure 10. It is convenient to realize the rotational drive of the valve core structure 10 while ensuring the coaxiality of the valve core structure 10 and the driving shaft 41 of the actuator drive assembly 40.

[0074] As shown in Figures 7 and 11, the bottom of the drive shaft 41 has a second limiting groove 411. Multiple mating portions are distributed circumferentially around the end of the drive shaft 41 that penetrates the cavity of the valve body 20. A mated portion is provided on the side of the valve core structure facing away from the bottom of the cavity of the valve body 20. The mating and mated portions are limitedly engaged to engage the drive shaft 41 and the inner cylinder 11. This arrangement facilitates the rotational drive of the valve core structure 10 by the drive shaft 41. The end of the valve core shaft 70 is located within the second limiting groove 411, which helps further ensure the coaxiality of the valve core shaft 70 and the drive shaft 41, and thus helps further ensure the coaxiality of the valve core shaft 70, the drive shaft 41, the valve core structure 10, and the valve body 20.

[0075] Furthermore, the mating portion is a snap-fitting protrusion 412, and the mated portion includes a first limiting groove 111 and a plurality of limiting snap-fitting grooves 112 circumferentially spaced around the opening edge of the first limiting groove 111. The plurality of snap-fitting protrusions 412 are disposed one-to-one within the plurality of limiting snap-fitting grooves 112. This arrangement ensures that the driving shaft 41 drives the valve core structure 10 by snapping the driving shaft 41 with the valve core structure 10. The plurality of limiting snap-fitting grooves 112 are spaced circumferentially around the opening edge of the first groove section 1111 of the first limiting groove 111, and the depth of the limiting snap-fitting grooves 112 is less than the depth of the first groove section 1111.

[0076] On the other hand, the actuator of the actuator drive assembly 40 of the present application realizes precise control of the angle of the actuator output power through the cooperation of the position detection sensor 49 and the magnetic ring, so as to improve the rotation accuracy of the valve core structure 10 in the multi-way valve. Specifically, as shown in Figures 12 to 17, the actuator of the actuator drive assembly 40 includes a housing 42, a power source 43, a gear set 44, a magnetic member 45 and a control board 46, the power source 43 is connected to the housing 42, the gear set 44 is connected to the power source 43, the gear set 44 at least includes an input gear 441 and an output gear 442, the power source 43 can drive the output gear 442 to rotate through the input gear 441, the output gear 442 is used to connect to the valve core structure 10, and the magnetic member 45 is installed on the output gear 442; a position detection sensor 49 is provided on the control board 46, and the position detection sensor 49 is located between the magnetic member 45 and the control board 46 and directly opposite to the magnetic member 45.

[0077] In this embodiment, the housing 42 is constructed with a housing chamber 423, and the power source 43, gear set 44, magnetic member 45 and control panel 46 are all installed inside the housing chamber 423. The output gear 442 drives the valve core structure 10 to rotate, and the position detection sensor 49 can sense the magnetic field changes of the magnetic member 45. The valve core structure 10 in this application can also be replaced with other rotating parts in the non-multi-way valve field, and in this embodiment, the position detection sensor 49 is configured as a Hall element. In this configuration, the housing 42 can accommodate components such as the power source 43 and the gear set 44, protect the various components installed in the housing chamber 423, facilitate the assembly of the various components, and ensure the structural stability of the various components. The power source 43 is used to output power and transmit the power to the input gear 441. The output gear 442 transmits power to the valve core structure 10 through its connection with the valve core structure 10 of the multi-way valve, driving the valve core structure 10 to rotate, thereby realizing the switching of the pipeline. A magnetic part 45 is installed on the output gear 442, and a position detection sensor 49 used in conjunction with the magnetic part 45 is provided on the control board 46. The position detection sensor 49 outputs a Hall sensing signal. The Hall sensing signal accurately feeds back the rotation angle and operating status of the output gear 442, and then indirectly controls the rotation angle of the valve core structure 10, thereby improving the rotation accuracy of the valve core structure 10. Position detection sensor.

[0078] Preferably, the magnetic member 45 and the output gear 442 are coaxially arranged. In this arrangement, the magnetic member 45 and the output gear 442 can rotate synchronously, and the change in the magnetic field of the magnetic member 45 detected by the position detection sensor 49 can be used to calculate the rotation angle of the output gear 442, thereby more accurately controlling the rotation of the output gear 442.

[0079] As shown in FIG14 , an axial end of the output gear 442 is provided with a receiving groove 4422, the opening of which faces the control board 46, and the magnetic member 45 is located in the receiving groove 4422. Furthermore, the magnetic member 45 is interference-fitted with the inner wall of the receiving groove 4422. This arrangement improves the convenience and accuracy of installing the magnetic member 45 through the receiving groove 4422.

[0080] It is understandable that in other embodiments not shown in the figure, the magnetic part 45 can also be set at other positions of the output gear 442. It only needs to be able to read the position through the position detection sensor 49 to determine the rotation angle of the output gear 442, and is not limited to the above-mentioned coaxial arrangement embodiment.

[0081] Optionally, the power source 43 adopts a motor. It is understandable that in other embodiments not shown in the figure, the power source 43 may also adopt a driving unit such as a steering gear that can drive the input gear 441 to rotate.

[0082] Specifically, as shown in Figure 13, one end of the output shaft 432 of the motor is connected to a worm 431. The worm 431 transmits the output force of the motor to the input gear 441 and changes the direction of force transmission. The worm 431 is set at an angle to the input gear 441. In this embodiment, the output gear 442 is set perpendicular to the worm 431.

[0083] In this embodiment, the gear set 44 also includes multiple gear shafts 444 and multiple transmission gears 443. The gear shafts 444 are connected to the housing 42. Each gear shaft 444 is equipped with at least one gear (including a transmission gear 443 or an input gear 441 or an output gear 442). The multiple transmission gears 443 are located between the input gear 441 and the output gear 442, and are used to transmit the power on the input gear 441 to the output gear 442.

[0084] As shown in Figures 13 and 14, in this embodiment, the housing 42 is provided with a first limiting portion 4221. The first limiting portion 4221 extends through one end of the control panel 46 and abuts against the output gear 442. The portion of the output gear 442 that forms the receiving groove 4422 and the magnetic member 45 are both located within the cavity enclosed by the first limiting portion 4221. Specifically, the housing 42 includes an upper shell 421 and a lower shell 422. The upper shell 421 and the lower shell 422 are connected and enclose a receiving cavity 423 for accommodating the power source 43 and the gear set 44. This arrangement allows the upper shell 421 and the lower shell 422 to be machined separately and then assembled together, reducing the difficulty of machining. The first limiting portion 4221 is located on the inner wall of the lower shell 422 facing the upper shell 421. The first limiting portion 4221 is movably connected to the output gear 442 and can limit the radial movement of the output gear 442. With this arrangement, the first limit portion 4221 can make the axial position of the output gear 442 more stable, and the coaxiality of the output power path and the valve core structure 10 is also higher, avoiding the deviation of external components such as the valve core structure 10 in the multi-way valve.

[0085] Preferably, the first limiting portion 4221 is coaxially disposed with the output gear 442, and at least a portion of the first limiting portion 4221 is capable of extending into the output gear 442. With this arrangement, since the first limiting portion 4221 extends into the output gear 442, the rotation of the output gear 442 is constrained by the first limiting portion 4221. When the output gear 442 undergoes radial transverse movement, it is limited by the first limiting portion 4221. Furthermore, since the first limiting portion 4221 is coaxially disposed with the output gear 442, the axial rotation of the output gear 442 does not interfere with the first limiting portion 4221.

[0086] Furthermore, to facilitate the placement of the magnetic part 45, the interior of the first limiting portion 4221 is hollow, one axial end of the output gear 442 is located in the space surrounded by the first limiting portion 4221, and the part of the output gear 442 that forms the accommodating groove 4422 and the magnetic part 45 are both located in the space surrounded by the first limiting portion 4221.

[0087] It is understandable that in other embodiments not shown in the figures, the first limiting portion 4221 may not extend into the output gear 442, but may be sleeved on the outside of the output gear 442 and spaced apart from the output gear 442 and also coaxially arranged with the output gear 442. In this embodiment, the first limiting portion 4221 can also limit the lateral displacement of the output gear 442.

[0088] It should be noted that the vertical direction in this embodiment refers to a direction parallel to the axial direction of the output gear 442 , and the horizontal direction refers to a direction perpendicular to the axial direction of the output gear 442 .

[0089] Preferably, the first limiting portion 4221 in this embodiment is configured as an annular boss structure, and an annular groove 4421 is defined on the end of the output gear 442 that faces the lower housing 422. The end of the first limiting portion 4221 that is closest to the output gear 442 extends into the annular groove 4421. This configuration provides a more stable fit between the annular boss structure and the annular groove 4421, allowing the two to form a circumferential abutment, resulting in a better limiting effect.

[0090] It is understandable that in other embodiments not shown in the figures, other cooperating limiting structures can also be used. For example, the first limiting portion 4221 is set as a cylindrical boss, and a cylindrical groove is opened at one end of the output gear 442 facing the lower shell 422, which can also achieve a limiting effect and will not interfere with the rotation of the output gear 442.

[0091] Preferably, as shown in Figure 13, the control panel 46 of this embodiment is constructed with a hollow 461, and the first limiting portion 4221 passes through the hollow 461 and is movably connected to the output gear 442. The hollow 461 enables the control panel 46 to avoid the first limiting portion 4221 and enables the control panel 46 to be installed between the output gear 442 and the lower shell 422, thereby ensuring the setting area of ​​the control panel 46.

[0092] It is understandable that in other embodiments not shown in the figures, the control board 46 can also be configured as a combination of multiple pieces to avoid the extension of the first limiting portion 4221, and is not limited to the above-mentioned hollow 461 configuration.

[0093] Specifically, a second limiting portion 4214 is provided on the inner wall of the upper shell 421 facing the lower shell 422. The second limiting portion 4214 is movably connected to the output gear 442 and is capable of limiting the radial movement of the output gear 442. This arrangement also limits the end of the output gear 442 away from the lower shell 422, further ensuring the rotational stability of the output gear 442.

[0094] As shown in Figure 14, a limiting boss 4211 is protruded on the inner wall of the upper shell 421 facing the lower shell 422 and is coaxially arranged with the output gear 442. The limiting boss 4211 is provided with a positioning groove 4212 on the side facing the output gear 442, and a through-hole 4213 is provided at the bottom of the positioning groove 4212. Part of the output gear 442 can pass through the positioning groove 4212 and extend into the through-hole 4213. The limiting boss 4211 and the through-hole 4213 form a second limiting portion 4214. In this embodiment, part of the output gear 442 passes through the positioning groove 4212, forming a circumferential abutment with the bottom wall of the positioning groove 4212. The output gear 442 is restricted from lateral shaking by the groove wall of the positioning groove 4212. The output gear 442 finally passes through or penetrates into the through hole 4213. On the one hand, it is convenient to connect with the drive shaft 41 and drive the valve core structure 10 of the multi-way valve. On the other hand, the output gear 442 can also be limited by the through hole 4213.

[0095] It should be noted that a second sealing ring 445 is also provided in the positioning groove 4212. The inner side of the second sealing ring 445 abuts against the output gear 442, and the outer side abuts against the groove wall of the positioning groove 4212 to improve the sealing between the output gear 442 and the groove wall of the positioning groove 4212 to prevent medium leakage.

[0096] As shown in Figures 15 to 17, at least two wires 433 are provided between the power source 43 and the control board 46. One end of each wire 433 is provided with an electrical clamp 435, which engages with the power supply terminal 434 of the power source 43. The other end of each wire 433 is provided with a pin 47, which engages with the control board 46. The power source 43 includes at least two power supply terminals 434. This arrangement eliminates the need to weld the wires 433 to the power supply terminals 434 and the control board 46, making the connection between the wires 433 and the power supply terminals 434 and the control board 46 more convenient. Furthermore, the actuator also includes a connector 48, which is electrically connected to the control board 46 via multiple pins 47. The connector 48 engages with the control board 46 via the pins 47, further enhancing installation convenience and making the electrical connection between the connector 48 and the control board 46 quick and easy to install.

[0097] It is understood that in other embodiments not shown, the power source 43 can also be connected to the control board 46 by welding wires, etc., and is not limited to the embodiment of the above-mentioned pin 47. There are also various embodiments for connecting the connector 48 to the control board 46, which will not be repeated here.

[0098] Optionally, the control board 46 is provided with a plurality of connection holes 462. The end of the pin 47 closest to the control board 46 extends into the connection hole 462 and forms an interference fit with the wall of the connection hole 462. The end of the pin 47 extending into the connection hole 462 is provided with a deformation hole 471. This arrangement ensures a stable electrical connection between the pin 47 and the control board 46 due to the interference fit between the pin 47 and the connection hole 462, thereby preventing the pin 47 from falling out. The deformation hole 471 reduces the structural strength of the end of the pin 47 inserted into the connection hole 462, providing space for deformation of the end of the pin 47 inserted into the connection hole 462, thereby preventing damage to the connection hole 462 caused by the interference fit between the pin 47 and the connection hole 462.

[0099] Preferably, a plurality of pins 47 are provided between the connector 48 and the control board 46 , and the plurality of pins 47 are evenly spaced apart.

[0100] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A valve core structure, characterized in that: The valve core structure has multiple flow channels spaced apart from each other, and the flow channels include a flow cavity and a flow port connected to both ends of the flow cavity. The force exerted on the valve core structure by the fluid in part of the flow cavity is F1, and the force exerted on the valve core structure by the fluid in another part of the flow cavity is F2, and the directions of F1 and F2 are opposite.

2. The valve core structure according to claim 1, characterized in that: The valve core structure includes a top plate (15) and a bottom plate (16), and the flow openings of the plurality of flow channels are all located on the bottom plate (16) of the valve core structure and distributed along the circumference of the valve core structure; the top of some of the flow cavities is the top plate (15) of the valve core structure, and the bottom has the flow opening and an opening connected to the flow opening; the bottom of another part of the flow cavities is the bottom plate (16) of the valve core structure, and the top has an opening connected to the flow opening; the fluid flowing through the flow cavity whose top is the top plate (15) of the valve core structure applies an upward thrust to the valve core structure, and the fluid flowing through the flow cavity whose bottom is the bottom plate (16) of the valve core structure applies a downward pressure to the valve core structure.

3. The valve core structure according to claim 1, characterized in that: The plurality of circulation channels include a first circulation channel (101) and a second circulation channel (102), the valve core structure has an inner cavity (104) and an outer cavity (105) spaced apart from each other, the circulation opening of the first circulation channel (101) and the circulation opening of the second circulation channel (102) are both arranged on the bottom plate (16) of the valve core structure corresponding to the outer cavity (105), the circulation cavity of the first circulation channel (101) is formed by the inner cavity (104) and the outer cavity (105), the inner cavity The top of (104) and the top of the outer cavity (105) are both the top plate (15) of the valve core structure, the bottom of the inner cavity (104) is an opening, and the bottom of the outer cavity (105) has the flow port; the flow cavity of the second flow channel (102) is formed by the outer cavity (105), a part of the bottom of the outer cavity (105) has the flow port, and the bottom of another part of the outer cavity (105) is the bottom plate (16) of the valve core structure, and the top of the outer cavity (105) is an opening.

4. The valve core structure according to claim 3, characterized in that: The valve core structure further comprises an inner cylinder (11), a middle cylinder (12), an outer cylinder (13) and a plurality of radial partitions (14); the area between the inner cylinder (11) and the middle cylinder (12) forms the inner cavity (104); the area between the middle cylinder (12) and the outer cylinder (13) forms the outer cavity (105); the radial partitions (14) are arranged between the middle cylinder (12) and the outer cylinder (13) along the circumferential direction of the valve core structure and partition the outer cavity (105) into two opposite directions. The invention provides a plurality of opposite sub-cavities, wherein the two sub-cavities for forming the circulation cavity of the first circulation channel (101) are spaced apart in the circumferential direction of the valve core structure, the bottoms of the sub-cavities are both the circulation ports, and the tops of the sub-cavities are both the top plates (15) of the valve core structure; the sub-cavity for forming the circulation cavity of the second circulation channel (102) is one, the top of the sub-cavity is open, and the bottom includes the bottom plate (16) of the valve core structure located between the two circulation ports of the second circulation channel (102).

5. The valve core structure according to claim 4, characterized in that: Part of the top plate (15) of the valve core structure is arranged at the top openings of the outer cavity (105) and the inner cavity (104), and part of the bottom plate (16) of the valve core structure is arranged at the bottom opening of the outer cavity (105). The radial partition (14) is connected to the top plate (15) and the bottom plate (16) at both ends of the axial direction of the valve core structure, respectively. Multiple flow ports are arranged on the bottom plate (16). The top plate (15) forms the bottom wall of the flow cavity of the first flow channel (101), and the bottom plate (16) is used to form the bottom wall of the flow cavity of the second flow channel (102).

6. A multi-way valve, characterized in that: The multi-way valve includes a valve body (20), a valve core sealing gasket (31), an execution drive assembly (40) and a valve core structure according to any one of claims 1 to 5, the bottom of the valve body (20) has a plurality of flow holes (201) distributed along the circumferential direction, the valve core structure is arranged at the bottom of the cavity of the valve body (20), any one of the flow ports corresponds to one of the flow holes (201), at least one of the flow cavities with a top opening is connected to the cavity of the valve body (20), the valve core sealing gasket (31) is arranged between the valve body (20) and the valve core structure, the execution drive assembly (40) is arranged on the valve body (20) and is driven and connected to the valve core structure to drive the valve core structure to rotate and adjust the flow condition of the multi-way valve.

7. The multi-way valve according to claim 6, characterized in that The multi-way valve further comprises a limit assembly (50), an elastic member (60) and a valve core shaft (70), wherein the valve core shaft (70) is located in the valve body (20) and one end of the valve core shaft is fixedly arranged at the bottom of the cavity of the valve body (20), the valve core structure is sleeved on the outer periphery of the valve core shaft (70) and is rotatably arranged in the valve body (20), the limit assembly (50) is arranged on the valve core shaft (70) and is located on the side of the valve core structure away from the bottom of the cavity of the valve body (20), and the two ends of the elastic member (60) are respectively in contact with the limit assembly (50) and the valve core structure to press the valve core structure onto the valve core sealing gasket (31) and press the valve core sealing gasket (31) onto the bottom of the cavity of the valve body (20).

8. The multi-way valve according to claim 7, characterized in that: The limit assembly (50) includes a retaining spring (51) and a gasket (52) sleeved on the valve core shaft (70), the two ends of the elastic member (60) respectively abut against the gasket (52) and the top surface of the valve core structure, the outer periphery of the valve core shaft (70) is provided with an annular retaining groove (71), the retaining spring (51) is retained in the annular retaining groove (71) to limit the position of the retaining spring (51) on the valve core shaft (70), and the gasket (52) cooperates with the retaining spring (51) as a stopper.

9. The multi-way valve according to claim 8, characterized in that The valve core structure has a first limiting groove (111) on the side away from the bottom of the cavity of the valve body (20), at least a part of the valve core shaft (70) is located in the first limiting groove (111), the gasket (52) and the elastic member (60) are both located in the first limiting groove (111), the two ends of the elastic member (60) are respectively in contact with the gasket (52) and the bottom wall of the first limiting groove (111), and the first limiting groove (111) has a stop step, and the side of the gasket (52) away from the retaining spring (51) is engaged with the stop step.

10. The multi-way valve according to claim 9, characterized in that The first limiting groove (111) includes a first groove section (1111) and a second groove section (1112) connected to each other, the radial dimension of the first groove section (1111) is larger than that of the second groove section (1112), the first groove section (1111) is located on the side of the valve core structure away from the bottom of the cavity of the valve body (20), the gasket (52) is movably arranged in the first groove section (1111), a part of the elastic member (60) is telescopically arranged in the second groove section (1112), the connection position of the first groove section (1111) and the second groove section (1112) forms the stop step, the gasket (52) and the inner wall of the first groove section (1111) are limited and matched with the bottom wall stop of the first groove section (1111).

11. The multi-way valve according to claim 6, characterized in that The valve core structure is the valve core structure described in claim 4, the inner cylinder (11) of the valve core structure has a first limiting groove (111) with an upward opening, the execution drive assembly (40) includes an actuator and a driving shaft (41), one end of the driving shaft (41) penetrates into the cavity of the valve body (20), and the end of the driving shaft (41) that penetrates into the cavity of the valve body (20) is limitedly matched with the first limiting groove (111), and the actuator is driven and connected to the valve core structure through the driving shaft (41).

12. The multi-way valve according to claim 11, characterized in that The bottom of the driving shaft (41) has a second limiting groove (411), and a plurality of mating parts are distributed circumferentially on one end of the driving shaft (41) that penetrates into the cavity of the valve body (20). The side of the valve core structure that is away from the bottom of the cavity of the valve body (20) has a mated part, and the mating part and the mated part are limitedly mated to clamp the driving shaft (41) and the inner cylinder (11).

13. The multi-way valve according to claim 12, wherein: The mating portion is a snap-fitting protrusion (412), and the mated portion comprises a first limiting groove (111) and a plurality of limiting slots (112) arranged at circumferential intervals around the opening edge of the first limiting groove (111), and the plurality of snap-fitting protrusions (412) are arranged in a one-to-one correspondence within the plurality of limiting slots (112).

14. The multi-way valve according to claim 6, characterized in that The actuator drive assembly (40) includes an actuator, which includes a housing (42), a power source (43), a gear set (44), a magnetic member (45) and a control board (46). The power source (43) is connected to the housing (42), the gear set (44) is connected to the power source (43), the gear set (44) at least includes an input gear (441) and an output gear (442), the power source (43) can drive the output gear (442) to rotate through the input gear (441), the output gear (442) is used to be connected to the valve core structure, and the magnetic member (45) is installed on the output gear (442); a position detection sensor (49) is provided on the control board (46), and the position detection sensor (49) is located between the magnetic member (45) and the control board (46) and directly facing the magnetic member (45).

15. The multi-way valve according to claim 14, characterized in that An axial end of the output gear (442) is provided with a receiving groove (4422), and the magnetic member (45) is located in the receiving groove (4422).

16. The multi-way valve according to claim 15, characterized in that The housing (42) is provided with a first limiting portion (4221), and one end of the first limiting portion (4221) extends out of the control plate (46) and abuts against the output gear (442); the portion of the output gear (442) forming the accommodating groove (4422) and the magnetic member (45) are both located in the cavity surrounded by the first limiting portion (4221).

17. The multi-way valve according to claim 16, wherein: The housing (42) includes an upper shell (421) and a lower shell (422), wherein the upper shell (421) and the lower shell (422) are connected and enclose a receiving chamber (423) for receiving the power source (43) and the gear set (44); The first limiting portion (4221) is located on the inner wall of the lower shell (422) facing the upper shell (421). The first limiting portion (4221) is movably connected to the output gear (442) and can limit the radial movement of the output gear (442).

18. The multi-way valve according to any one of claims 14 to 17, characterized in that: The housing (42) includes an upper shell (421) and a lower shell (422), wherein the upper shell (421) and the lower shell (422) are connected and enclose a receiving chamber (423) for receiving the power source (43) and the gear set (44); A second limiting portion (4214) is provided on the inner wall of the upper shell (421) facing the lower shell (422). The second limiting portion (4214) is movably connected to the output gear (442) and can limit the radial movement of the output gear (442).

19. The multi-way valve according to claim 18, characterized in that A limiting boss (4211) is provided on the inner wall of the upper shell (421) facing the lower shell (422), and is coaxially arranged with the output gear (442). A positioning groove (4212) is provided on the side of the limiting boss (4211) facing the output gear (442). A through-hole (4213) is provided at the bottom of the positioning groove (4212). Part of the output gear (442) can pass through the positioning groove (4212) and extend into the through-hole (4213). The limiting boss (4211) and the through-hole (4213) form the second limiting portion (4214).

20. The multi-way valve according to claim 14, wherein: At least two electric wires (433) are provided between the power source (43) and the control board (46); one end of the electric wire (433) is provided with an electric clamp (435), and the electric clamp (435) is clamped with the power supply terminal (434) of the power source (43); the other end of the electric wire (433) is provided with a pin (47), and the pin (47) is clamped with the control board (46); the actuator also includes a connector (48), and the connector (48) is clamped with the control board (46) through the pin (47).

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