Split composite combination valve and working method thereof

Abstract

The application discloses a split composite combined valve and a working method thereof. A plurality of valve core assemblies are arranged on the upper surface of a valve plate. The valve plate is provided with a fluid inlet port and a plurality of fluid outlet ports. The fluid inlet port is communicated with each liquid inlet interface. Each liquid outlet interface is communicated with one fluid outlet port. The valve core assembly comprises an electromagnet and a valve body. The electromagnet is arranged above the valve body. The lower bottom surface of the valve body is attached to the upper surface of the valve plate. The valve body is internally provided with an IN end channel and an OUT end channel, which are respectively aligned with the liquid inlet interface and the liquid outlet interface. The valve body is internally provided with a diaphragm and a sealing gasket. The sealing gasket is arranged on the lower surface of the diaphragm. The bottom surface of the sealing gasket is opposite to the fluid outlet end of the IN end channel. The bottom of the electromagnet is provided with a moving armature. The lower end of the moving armature is in contact with the upper surface of the diaphragm. The moving armature adopts a compression spring to provide downward thrust.

Description

Technical Field

[0001] This invention belongs to the field of solenoid valves and relates to a split-type composite valve and its working method. Background Technology

[0002] Traditional combination valves use diaphragm or membrane structures. To achieve a sealing function, the valve plate of the combination valve requires the additional machining of the sealing cavity. The traditional structure has a long machining cycle, is difficult to manufacture, and is inconvenient for later maintenance. At the same time, the cavity is separate from the sealing component, which makes it inconvenient for integrated application and installation. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a split-type composite valve and its working method, which has the characteristics of split-type composite structure, easy integration and installation, excellent performance and high precision.

[0004] To achieve the above objectives, the present invention employs the following technical solution: A split-type composite valve includes a valve plate and multiple valve core assemblies; Multiple valve core assemblies are arranged on the upper surface of the valve plate. Each valve core assembly mounting position on the valve plate is provided with a liquid inlet and a liquid outlet. The valve plate is provided with a fluid inlet port and multiple fluid outlet ports. The fluid inlet port is connected to each liquid inlet port, and each liquid outlet port is connected to a fluid outlet port. The valve core assembly includes an electromagnet and a valve body, with the electromagnet positioned above the valve body. The bottom surface of the valve body is attached to the upper surface of the valve plate. The valve body has an IN end channel and an OUT end channel inside. The bottom inlet of the IN end channel is aligned with the liquid inlet, and the bottom outlet of the OUT end channel is aligned with the liquid outlet. The IN end channel and the OUT end channel are connected. The valve body contains a diaphragm and a sealing gasket. The sealing gasket is installed on the lower surface of the diaphragm, with the bottom surface of the sealing gasket facing the fluid outlet end of the IN end channel. A moving armature is located at the bottom of the electromagnet, with the lower end of the moving armature contacting the upper surface of the diaphragm. The moving armature uses a compression spring to provide downward thrust.

[0005] Optionally, the bottom surface of the valve body is provided with two annular sealing grooves. The two annular sealing grooves surround the bottom inlet of the IN end channel and the bottom outlet of the OUT end channel, respectively. O-rings are embedded in both annular sealing grooves. The upper and lower sides of the O-rings contact the bottom surface of the valve body and the upper surface of the valve plate, respectively.

[0006] Optionally, the electromagnet includes a frame, a coil frame, an enameled coil, and a fixed armature. The coil frame is located inside the frame, and the enameled coil is wound on the outer surface of the coil frame. The coil frame has a through hole running vertically through it. The fixed armature is fixed in the upper half of the hole, and the moving armature is slidably located in the lower half of the hole, directly below the fixed armature.

[0007] Optionally, a positioning block is provided at the bottom of the electromagnet, and a through hole is opened in the center of the positioning block, through which the lower end of the moving armature passes and is exposed below the positioning block.

[0008] Optionally, the diaphragm includes an outer edge portion and a central portion, with a positioning block pressing above the outer edge portion of the diaphragm, the valve body supported below the outer edge portion of the diaphragm, and the central portion of the diaphragm suspended and in contact with the moving armature.

[0009] Optionally, the bottom of the moving armature has a stepped surface that extends downwards from the bottom end of the coil frame hole and the bottom end of the frame. The top end of the compression spring contacts the lower end face of the frame, and the bottom end of the compression spring contacts the stepped surface at the bottom of the moving armature.

[0010] Optionally, an electrical box is provided at the top of the electromagnet, which is fixed on the frame. Inside the electrical box, a lead angle is fixed. The lead angle has a downwardly extending conductive connection end and an upwardly extending contact end. The conductive connection end is connected to the two ends of the wire of the enameled coil.

[0011] Optionally, the electromagnet is connected to the valve body by a long screw. The head of the long screw is located at the bottom of the valve body, and the screw shank passes vertically upward through the valve body shell structure, extends upward, and is screwed into the corresponding vertical threaded hole inside the electromagnet.

[0012] Optionally, ten valve core assemblies are arranged side by side on the upper surface of the valve plate, and a fluid inlet port and ten fluid outlet ports are opened on the side of the valve plate. The fluid inlet port is connected to ten liquid inlet branch channels, the ten liquid inlet branch channels are connected to ten liquid inlet interfaces respectively, and the ten liquid outlet interfaces are connected to ten fluid outlet ports respectively.

[0013] A method for operating a split-type composite valve: In the de-energized state, a spring applies a downward thrust to the moving armature, causing the moving armature to move downward; the lower end of the moving armature pushes the diaphragm to deform downward, and the diaphragm causes the sealing gasket to move downward; the bottom surface of the sealing gasket is attached to the edge of the fluid outlet end of the IN end channel inside the valve body, cutting off the flow path of the fluid in the IN end channel. When the power is turned on, an electromagnetic attraction is generated inside the electromagnet; the moving armature slides upward against the thrust of the compression spring, and the moving armature releases the downward thrust on the diaphragm; the diaphragm deforms and rises, pulling the sealing gasket upward, and the bottom surface of the sealing gasket separates from the fluid outlet edge of the IN end channel inside the valve body; the fluid medium enters the IN end channel of the valve body, flows into the closed space enclosed by the valve body and the diaphragm, and finally flows out from the OUT end channel.

[0014] Compared with the prior art, the present invention has the following beneficial effects: This invention separates the fluid distribution and shut-off control functions. By integrating an independent solenoid valve core assembly onto a valve plate with internal flow channels, the complex sealing cavities inside traditional valve bodies are eliminated, significantly reducing manufacturing difficulty and production costs. Simultaneously, a drive structure consisting of an electromagnet, a compression spring, and a diaphragm gasket achieves clamping and shut-off of the flow channel outlet through purely mechanical thrust. This structure not only achieves absolute isolation between the fluid medium and the upper electromagnetic components, preventing media leakage and corrosion, but also greatly enhances the modularity of the combined valve, facilitating independent disassembly and maintenance later.

[0015] Furthermore, by adding a double annular sealing groove and an O-ring to the bottom of the valve body, an end-face seal is constructed at the contact interface between the valve body and the valve plate. When the valve core assembly is pressed down and fixed, the sealing ring undergoes cross-sectional elastic deformation and fills the gap, cutting off the path of leakage from the inlet and outlet channels to the outside, thus ensuring the sealing reliability of high-pressure fluid during transmission between the split structures.

[0016] Furthermore, the coaxial nested layout of the frame, coil frame, fixed armature, and moving armature can form a closed magnetic field loop with low magnetic resistance and high density when energized. This improves the efficiency of converting electromagnetic energy into mechanical kinetic energy, while the perforated structure provides a smooth, low-friction linear sliding guide for the moving armature, ensuring the sensitivity, accuracy, and long-term stability of the valve's opening and closing action.

[0017] Furthermore, by adding a positioning block with a central through hole, a stable transition and support layer is provided between the main structure of the electromagnet and the valve body below. The through hole provides rigid linear limiting and guidance for the extension of the lower end of the moving armature, effectively preventing the moving armature from lateral deflection during frequent high-speed impacts, thereby ensuring that the thrust of the moving armature can always act perpendicularly on the diaphragm below, reducing abnormal wear of internal components.

[0018] Furthermore, by using positioning blocks and the valve body to clamp the outer edge of the diaphragm from both the top and bottom, an isolation barrier is constructed, eliminating the risk of fluid medium seeping into the upper electrical cavity. At the same time, keeping the middle part of the diaphragm in an unsupported, suspended state gives it the freedom to undergo elastic deformation up and down following the thrust of the moving armature, thus smoothly transforming the rigid linear mechanical thrust into a flexible end-face sealing action, achieving frictionless dynamic flow channel isolation.

[0019] Furthermore, by utilizing the stepped surface at the bottom of the moving armature as the fulcrum of the compression spring, not only is the internal space of the coil frame and the bottom of the frame fully utilized, but the force on the compression spring is also ensured to be uniform and stable during compression and extension. This structure provides a constant and reliable downward reset thrust for the valve in the power-off state, ensuring the safety and pressure resistance of the valve core's normally closed characteristics.

[0020] Furthermore, through the integrated design of the top electrical box and lead corner, the low-voltage enameled wire inside the electromagnetic coil is transformed into a standardized external plug-in interface. This not only isolates the electrical connector from the underlying mechanical and fluid environment, improving the safety level against short circuits, but also facilitates quick wiring of external control systems, improving assembly efficiency in industrial settings and the ease of plugging and unplugging during subsequent troubleshooting.

[0021] Furthermore, through the design of a main and branch flow channels with one inlet and multiple outlets inside the valve plate, a single external liquid supply main pipe can simultaneously provide media delivery to ten valve core assemblies arranged side by side with independent operation stations. This reduces the physical space occupied by the external pipeline layout, significantly reduces the number of pipe joints and potential leakage points, making it ideal for complex integrated industrial equipment that requires high-density, multi-channel, and precise fluid control.

[0022] Furthermore, in the event of a power outage, the spring force forces the sealing gasket to press against the flow channel outlet, achieving immediate safety locking upon power failure and providing excellent fault-tolerant safety characteristics. When power is applied, electromagnetic attraction instantly overcomes the spring force, and combined with the hydrostatic thrust of the fluid at the bottom, the diaphragm rapidly rises, achieving low-resistance channel opening. This method offers extremely rapid response and high energy conversion efficiency, ensuring efficient and safe fluid switching within the system. Attached Figure Description

[0023] Figure 1 This is a perspective view of the split-type composite valve of the present invention; Figure 2 This is a left view of the split-type composite valve of the present invention; Figure 3 This is a front view of the split-type composite valve of the present invention; Figure 4 This is a front view of the valve core assembly of the present invention; Figure 5 This is a bottom view of the valve core assembly of the present invention; Figure 6 This is a cross-sectional view of the valve core assembly of the present invention; Figure 7 This is a left view of the valve core assembly of the present invention; Figure 8 This is a right view of the valve core assembly of the present invention.

[0024] Wherein: 1-valve plate; 2-screw; 3-valve core assembly; 4-electromagnet; 5-valve body; 6-long screw; 7-O-ring seal; 8-frame; 9-coil frame; 10-enameled coil; 11-moving armature; 12-sealing gasket; 13-lead angle; 14-fixed armature; 15-electrical box; 16-positioning block; 17-compression spring; 18-diaphragm. Detailed Implementation

[0025] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0026] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terms “installation,” “connection,” and “linkage” should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; a mechanical connection, an electrical connection, or a connection that allows communication; a direct connection or an indirect connection via an intermediate medium; or a connection within two elements or an interaction between two elements. The term “and / or” as used herein includes any and all combinations of one or more of the associated listed items. Those skilled in the art will understand the specific meaning of the above terms in this invention according to the specific circumstances. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention.

[0028] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0029] The following disclosure provides many different embodiments or examples for implementing various structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0030] like Figures 1-3As shown, this is the split-type composite valve of the present invention. This embodiment includes a valve plate 1, twenty screws 2, and ten valve core assemblies 3. The valve plate 1 serves as a support platform and the distribution center for fluid transmission. The valve plate 1 is a plate-like structure with a certain thickness, featuring a flat upper and lower surface and vertical side faces on all four sides. The valve plate 1 has a hollow channel structure inside for the fluid medium to pass through. On the flat upper surface of the valve plate 1, there are threaded mounting holes for positioning and fixing, as well as multiple fluid inlet ports connected to the internal hollow channel structure. The ten valve core assemblies 3, as independent fluid cutoff and conduction control execution units, are all uniformly arranged on the same surface of the valve plate 1, i.e., all ten valve core assemblies 3 are placed on the upper surface area of ​​the valve plate 1. These ten valve core assemblies 3 are arranged side-by-side on the upper surface of the valve plate 1, with a safe gap maintained between the outer shells of each valve core assembly 3, preventing direct contact between them. The twenty screws 2 are fasteners for the external mechanical fixation of the entire composite valve. Each individual valve core assembly 3 is equipped with two screws 2 during assembly. The shanks of these two screws 2 pass through the pre-drilled holes at the bottom of the corresponding valve core assembly 3, and then are screwed vertically downwards into the corresponding internal threaded holes on the upper surface of the valve plate 1. Through the downward mechanical torque and clamping action applied by these twenty screws 2, the ten individual valve core assemblies 3 are stably and firmly fixed to the upper surface of the valve plate 1, so that all the moving valve core assemblies 3 and the stationary valve plate 1 are combined to form a structural whole that cannot move relative to each other.

[0031] In the split-type composite valve, valve plate 1 acts as a fluid manifold for the ten independent valve core assemblies 3. The internal flow channel network structure of valve plate 1 configures the incoming fluid into a one-in-ten-out distribution pattern. Specifically, the upper surface of valve plate 1 is provided with an inlet port and an outlet port at the installation position of each valve core assembly 3. The side surface or a specific position of valve plate 1 has a general fluid inlet port, which is used to connect to an external fluid supply pipeline to receive the medium. The general fluid inlet port extends into the interior of valve plate 1 and laterally branches into ten independent inlet branch channels. These ten internal inlet branch channels extend vertically upward and are connected to the ten inlet ports on the upper surface of valve plate 1. At the same time, multiple fluid outlet ports are also provided on the side of valve plate 1 for fluid discharge. The number of fluid outlet ports is the same as the number of valve core assemblies 3. The fluid outlet ports extend into the interior of valve plate 1 and are connected to the ten outlet ports on the upper surface of valve plate 1.

[0032] Each valve core assembly 3 occupies a specific mounting position on the valve plate 1. Each mounting position corresponds to a set of interfaces on the upper surface of the valve plate 1, namely one inlet interface and one outlet interface. During the use and assembly of the split-type composite valve, the mounting orientation of these ten valve core assemblies 3 on the valve plate 1 is adjustable. In the default assembly state, the front structures of the ten valve core assemblies 3 face the same direction, and the entire composite valve controls the flow of the medium according to the predetermined one-inlet and ten-outlet internal flow path. When the external pipeline layout changes, technicians can rotate these ten valve core assemblies 3 horizontally 180 degrees on the upper surface of the valve plate 1, and then re-fix them in the threaded holes of the valve plate 1 using the original twenty screws 2. At this point, the composite valve enters a reverse-use state. This reverse-use assembly action changes the corresponding connection relationship between the flow channel at the bottom of the valve core assembly 3 and the inlet and outlet interfaces on the surface of the valve plate 1, enabling the entire composite valve structure to adapt to reverse fluid flow control requirements.

[0033] The split-type composite valve adopts a physically separated design, separating the manifold component, which must have a complex and long-distance fluid channel, from the valve core assembly 3. The interior of the valve plate 1 only retains the fluid flow channel orifice and the threaded mounting hole for fixing, without machining the complex cavity for accommodating the moving seal.

[0034] like Figures 4-8 As shown, this is the valve core assembly 3 of the present invention. Each independent valve core assembly 3 contains an electromagnet 4 responsible for generating electromagnetic driving force and a valve body 5 responsible for sealing the flow channel. The specific structure of a single valve core assembly 3 is composed of the electromagnet 4, the valve body 5, two long screws 6, two O-rings 7, a compression spring 17, a diaphragm 18, and a sealing gasket 12.

[0035] In the vertical spatial arrangement of a single valve core assembly 3, the electromagnet 4 occupies the upper half of the vertical space of the entire valve core assembly 3, while the valve body 5 occupies the lower half of the vertical space of the valve core assembly 3, located directly below the electromagnet 4 structure. It serves as the carrier for the actual entry, residence, and exit of the fluid medium. The valve body 5 has a flat bottom surface. After assembly, the bottom surface of the valve body 5 directly contacts and adheres to the flat upper surface of the valve plate 1. Inside the valve body 5, hollow flow channels are formed to guide the directional flow of the fluid medium. These hollow flow channels are specifically divided into two parts: the IN end channel and the OUT end channel. The IN end channel provides an upward path for the fluid medium to enter the upper space inside the valve body 5. The OUT end channel provides a downward path for the fluid medium to leave the upper space inside the valve body 5. The IN end channel and the OUT end channel are connected. The electromagnet 4 and the valve body 5 are directly fixed together by two parallel long screws 6. The heads of the two long screws 6 are located at the bottom of the valve body 5, and the screw shanks extend vertically upward through the outer shell structure of the valve body 5, then continue upward and are screwed into the corresponding vertical threaded holes in the electromagnet 4. Through the axial tension applied by the two long screws 6, the upper electromagnet 4 is pressed tightly against the top of the lower valve body 5.

[0036] To ensure fluid sealing at the interface between the valve body 5 and the valve plate 1, two O-rings 7 are installed in the bottom surface of the valve body 5. On the flat bottom surface of the valve body 5, a first annular recessed sealing groove is formed around the bottom inlet of the IN channel, and a second annular recessed sealing groove is formed around the bottom outlet of the OUT channel. Each O-ring 7 is a closed, elastic ring structure. The two O-rings 7 are respectively embedded and placed inside these two annular recessed sealing grooves. When the twenty screws 2 fix the valve body 5 downwards onto the valve plate 1, the distance between the bottom surface of the valve body 5 and the upper surface of the valve plate 1 is compressed to its minimum. During this vertical compression assembly process, the upper and lower surfaces of the two O-rings 7 placed inside the annular sealing grooves are simultaneously subjected to rigid compression from both the bottom surface of the valve body 5 and the upper surface of the valve plate 1. The compressed O-rings 7 undergo elastic deformation in their cross-section, and their deformed volume fills any gaps that may exist between the contact surfaces of the valve body 5 and the valve plate 1. The first O-ring 7 seals the gap between the inlet of the IN channel of the valve body 5 and the liquid inlet of the valve plate 1, while the second O-ring 7 seals the gap between the outlet of the OUT channel of the valve body 5 and the liquid outlet of the valve plate 1. Together, they cut off the path for the fluid medium to laterally permeate into the external environment. Due to its independent structure, the valve body 5 can be manufactured using injection molding, where liquid material is injected into a mold cavity and cooled to form the final product.

[0037] The electromagnet 4 is mounted and fixed directly above the valve body 5, and is the driving part that controls the internal opening and closing action of the single valve core assembly 3. The electromagnet 4 internally includes a frame 8, a coil frame 9, an enameled coil 10, a moving armature 11, a lead angle 13, a stationary armature 14, an electrical box 15, and a positioning block 16. The frame 8, as the outermost support and magnetic circuit conduction component inside the electromagnet 4, surrounds the outermost part of the internal electromagnetic structure, presenting a shell structure with internal accommodating space. The frame 8 is made of a material with magnetic permeability, and its structure includes an upper top sidewall, a lower bottom sidewall, and four sidewalls connecting the upper and lower sidewalls, providing overall mechanical strength to the electromagnet 4 and forming part of a closed loop of magnetic lines of force. The coil frame 9 is housed within the accommodating space inside the frame 8. The coil frame 9 is a skeleton component injection-molded from a non-conductive insulating material, comprising a vertically placed cylindrical body and two parallel annular protruding flanges extending outwards from the top and bottom of the cylindrical body. The cylindrical body of the coil frame 9 has a through-hole that runs vertically through it, serving as the linear sliding axis of the moving parts inside the electromagnet 4. The enameled coil 10, acting as the source of the electromagnetic field, is wound around the outer cylindrical surface of the coil frame 9. The windings of the enameled coil 10 are confined within the physical space between two annular protruding flanges at the top and bottom of the coil frame 9, forming a coil tube of a certain thickness. The side walls of the frame 8 surround the enameled coil 10, isolating it from the external environment.

[0038] The electrical box 15 is installed and fixed at the top of the electromagnet 4 structure. The electrical box 15 is a shell structure made of insulating plastic, its bottom surface fixed to the top side wall of the frame 8. The electrical box 15 has an internal cavity for accommodating electrical connectors. The lead-in pin 13 is fixed within the internal cavity of the electrical box 15. The lead-in pin 13 has a downwardly extending conductive connection end and an upwardly extending contact end. The downwardly extending conductive connection end of the lead-in pin 13 connects to both ends of the wire of the enameled coil 10, making their conductive circuits interconnected. The upwardly extending contact end of the lead-in pin 13 is a hard metal pin-like structure. This pin-like structure protrudes upward and is exposed in the top opening area of ​​the electrical box 15. The pin-like end of the lead-in pin 13 receives the insertion of an external power supply wire, forming the only channel for external power input into the internal coil of the electromagnet 4, facilitating power connection to the control system and subsequent disassembly and troubleshooting.

[0039] Within the cylindrical internal cavity penetrating the coil frame 9, a fixed armature 14, a compression spring 17, and a moving armature 11 are sequentially installed from top to bottom along the vertical axis. The fixed armature 14 occupies the upper half of the vertical space within the internal cavity of the coil frame 9. The fixed armature 14 is a solid cylindrical metal block made of magnetically conductive material. The upper end of the fixed armature 14 contacts and is mechanically fixed to the top sidewall of the frame 8, or is directly fixed to the top of the inner wall of the coil frame 9, ensuring that the fixed armature 14 remains stationary relative to the coil frame 9 without any displacement under any operating condition of the combined valve. The fixed armature 14 has a flat lower end face facing directly downwards. The moving armature 11 occupies the lower half of the vertical space within the internal cavity of the coil frame 9, located directly below the fixed armature 14. The moving armature 11 is also a solid cylindrical metal block made of magnetically conductive material. An annular gap is left between the outer cylindrical surface of the moving armature 11 and the inner surface of the hole in the coil frame 9. This annular gap allows the moving armature 11 to slide freely upwards or downwards within the hole along the vertical axis. The upper end face of the moving armature 11 is positioned opposite the lower end face of the fixed armature 14. The bottom of the moving armature 11 has a stepped surface that extends downwards from the bottom opening of the hole in the coil frame 9 and the bottom opening of the frame 8. A compression spring 17 is positioned within the vertical space between the frame 8 and the moving armature 11. The top of the compression spring 17 contacts the lower end face of the frame 8, and the bottom of the compression spring 17 contacts the stepped surface at the bottom of the moving armature 11. After assembly, because the distance between the stepped surface of the moving armature 11 and the lower end face of the frame 8 is less than the natural free length of the compression spring 17, the compression spring 17 is in a compressed state. The compressed spring 17 continuously applies a downward thrust to the moving armature 11 below along the vertical axis.

[0040] The positioning block 16 is installed below the bottom surface of the bottom side wall of the frame 8. The positioning block 16 is located at an intermediate transition position between the main structure of the electromagnet 4 and the upper end face of the valve body 5. A cylindrical central through hole is provided at the center of the positioning block 16. The upper surface of the positioning block 16 is in contact with the bottom side wall of the frame 8 and bears the downward pressure from the frame 8. The lower surface of the positioning block 16 faces the valve body 5 below. The lower end extension of the moving armature 11 passes through the cylindrical central through hole of the positioning block 16, so that the lowermost end of the moving armature 11 is exposed in the area of ​​the space below the positioning block 16.

[0041] A diaphragm 18 is placed laterally in the vertical space between the lower surface of the positioning block 16 and the upper surface of the valve body 5. The diaphragm 18 is an elastic, circular, thin sheet made of a flexible material. The planar structure of the diaphragm 18 is divided into an outer annular portion and a central circular portion. During the assembly of the individual valve core assembly 3 by locking it with the long screw 6, the lower surface of the positioning block 16 is directly pressed against the upper surface of the outer edge portion of the diaphragm 18. At the same time, the upper surface of the valve body 5 is supported on the lower surface of the outer edge portion of the diaphragm 18. The positioning block 16 and the valve body 5 apply clamping and compressing forces to the outer edge portion of the diaphragm 18 from both vertical and horizontal directions. Under this vertical compression, the material of the outer edge portion of the diaphragm 18 deforms and fits tightly against the upper surface of the valve body 5. This tight fit creates a completely sealed space between the lower surface of the diaphragm 18 and the inner surface of the valve body 5, completely isolating it from the outside world. The function of this sealed space is to block the fluid medium entering the valve body 5 below the diaphragm 18, completely cutting off the leakage and seepage of the fluid medium through the gap on the outside of the moving armature 11 into the space containing the electromagnet 4 above. The circular middle part of the diaphragm 18 is not held by the positioning block 16 and the valve body 5, and is in a suspended state without support. This middle part can undergo elastic deformation, bulging upward or concave downward, in response to external mechanical thrust or pull. The lowest end of the moving armature 11 directly contacts and connects to the surface directly above the middle part of the diaphragm 18.

[0042] The sealing gasket 12 is positioned directly below the middle portion of the diaphragm 18. The sealing gasket 12 is a solid, round rubber block of a certain thickness, specifically designed to withstand mechanical pressure and block flow channel openings. The sealing gasket 12 is installed and fixed to the lower surface of the diaphragm 18 using a tight fit. This tight fit ensures that the upper portion of the sealing gasket 12 is firmly embedded or bonded to the lower surface of the middle portion of the diaphragm 18, forming a unified assembly. The sealing gasket 12 has a flat, downward-facing shielding bottom surface. The IN terminal channel inside the valve body 5 has a vertically upward-facing fluid outlet end, which faces the flat, shielding bottom surface of the sealing gasket 12. The diaphragm 18 provides elastic deformation, while the sealing gasket 12 provides pressure-resistant sealing; their separate yet combined structures constitute a diaphragm-type composite sealing structure. Any displacement movement of the moving armature 11 in the vertical direction will transmit its displacement and mechanical force to the middle part of the diaphragm 18. Due to the tight fit, every upward or downward elastic deformation displacement of the middle part of the diaphragm 18 will force the sealing gasket 12 below to move upward or downward by an equal distance.

[0043] When the fluid pipeline system does not require the medium to flow through the combination valve, and the control system cuts off the power supply, the valve core assembly 3 is in a de-energized state. In this de-energized state, the external control power supply no longer supplies current to the lead angle 13 inside the electrical box 15. The lead angle 13 is not energized, and no current flows through the conductor of the enameled coil 10 wound around the coil frame 9. Since the enameled coil 10 is in a non-current state, no electromagnetic field effect can be generated in the space surrounding the coil. Without an electromagnetic field, there is no flow of magnetic lines of force in the magnetic path formed by the frame 8, the fixed armature 14, and the moving armature 11. Therefore, inside the hole of the coil frame 9, no electromagnetic attraction is generated between the lower end face of the fixed armature 14 and the upper end face of the movable armature 11, which can slide up and down.

[0044] Under conditions without external electromagnetic force, the elastic potential energy stored in the compression spring 17, which is compressed between the fixed armature 14 and the moving armature 11, becomes the mechanical force driving the movement of the internal structure. The compression spring 17 attempts to return to its natural length, and thus begins to extend downwards. The bottom end of the compression spring 17 continuously applies a downward elastic mechanical thrust along the vertical axis to the stepped surface of the moving armature 11. Under the continuous downward mechanical thrust of the compression spring 17, the moving armature 11 begins to slide linearly downwards along the vertical axis of the internal hole of the coil frame 9. During the downward displacement of the moving armature 11 as a whole, its lowest end forcefully pushes downwards against the middle part of the diaphragm 18 in contact with it.

[0045] The outer periphery of the diaphragm 18 is tightly clamped and fixed. Under the downward force of the lower end of the moving armature 11, its middle portion overcomes the deformation resistance of the rubber material and undergoes an elastic deformation that causes it to concave downwards. The downward displacement distance of the moving armature 11 is proportionally converted into the downward concavity displacement distance of the middle portion of the diaphragm 18. Since the sealing gasket 12 is firmly connected to the lower surface of the middle portion of the diaphragm 18 through a tight fit, when the middle portion of the diaphragm 18 moves downwards as a whole, the sealing gasket 12 below also moves downwards in absolute synchronization. During the downward movement, the flat, shielding bottom surface of the sealing gasket 12 gets closer and closer to the upward fluid outlet end of the IN end channel inside the valve body 5. As the compression spring 17 pushes the moving armature 11 downwards to the lowest limit of its stroke, the sealing gasket 12 is pressed downwards by the force of the compression spring 17 through the moving armature 11. The bottom surface of the sealing gasket 12 finally fits tightly against the edge of the fluid outlet end of the IN end channel inside the valve body 5, leaving no gaps between them.

[0046] Under the continuous downward mechanical pressure of the compression spring 17, the sealing gasket 12 forms a rigid seal on the fluid outlet end of the IN end channel. At this time, if the fluid medium enters from the internal flow channel of the valve plate 1 through the main fluid inlet port, goes up along the inlet branch channel to the inlet interface, passes through the central hole of the first O-ring seal 7, and finally enters the IN end channel of the valve body 5, it will directly impact the bottom surface of the sealing gasket 12. Due to the cutting-off effect of the sealing gasket 12, the fluid medium is completely blocked inside the IN end channel and cannot pass through the sealing interface to enter the closed sealing space formed by the valve body 5 below the diaphragm 18. Since the fluid medium cannot enter the sealing space, it naturally cannot find and flow into the inlet of the OUT end channel. Thus, the single valve core assembly 3, through the downward extension of the compression spring 17, pushes the armature 11, thereby forcing the diaphragm 18 and the sealing gasket 12 to sink and tighten, cutting off the transmission path of the fluid from the IN end channel to the OUT end channel, completing the complete sealing and fluid cut-off process of the combined valve in the de-energized state.

[0047] When the fluid pipeline system receives a control command requiring the fluid medium to pass through the combination valve for loop transmission, the control system switches on the power, and the valve core assembly 3 enters the energized state. The current generated by the external control power supply enters the electrical box 15 and is then conducted into the pin-shaped end of the lead angle 13. The current flows downward along the metal body of the lead angle 13 and is injected from its conductive connection end into the wire of the enameled coil 10 wound around the coil frame 9. According to the principles of electromagnetic physics, the charged enameled coil 10 generates a strong electromagnetic field in the space around it. Since the outer frame 8, the upper internal fixed armature 14, and the lower internal moving armature 11 are all made of materials with high magnetic permeability, these three components have a strong gathering and guiding effect on the surrounding diffuse magnetic lines of force. The magnetic lines of force form a closed magnetic flux loop along the side wall of the frame 8, the solid body of the fixed armature 14, the air gap between the fixed and moving armatures, and the solid body of the moving armature 11.

[0048] As a closed magnetic flux loop is established and a certain magnetic flux density is reached within the magnetic conductor, a strong physical electromagnetic attraction is generated between the lower end face of the stationary fixed armature 14 and the upper end face of the freely sliding movable armature 11 in the vertical hole inside the coil frame 9, separated by an air gap. Because the components are made of high-permeability materials, a relatively large electromagnetic attraction is still generated between the fixed armature 14 and the movable armature 11 even when the enameled coil 10 receives a low energy consumption current sufficient to maintain product operation. At this instant, the movable armature 11 is simultaneously subjected to two completely opposite physical forces along the vertical axis. The first force is the downward elastic thrust exerted by the lower compression spring 17 attempting to extend; the second force is the upward electromagnetic attraction exerted by the upper fixed armature 14 through the magnetic field.

[0049] Under the parameter design in the energized state, the upward electromagnetic attraction force generated by the fixed armature 14 on the moving armature 11 is much greater than the downward elastic thrust generated by the compression spring 17 on the moving armature 11. Driven by this upward force, the moving armature 11 overcomes the elastic resistance of the compression spring 17 and begins to slide upward linearly along the vertical axis of the internal hole of the coil frame 9, accelerating towards the fixed armature 14 and finally making attractive contact. During the upward displacement of the moving armature 11, its stepped surface presses upward against the bottom coil of the compression spring 17, forcing the compression spring 17 to be further compressed and tightened.

[0050] Simultaneously, the moving armature 11 shifts upwards, and its lowest end also rises, releasing the downward pushing force originally applied to the middle surface of the diaphragm 18. After losing the pressure from above, the rubber material in the middle of the diaphragm 18, relying on its own elastic recovery force and the upward pushing force of the static pressure of the fluid medium waiting to enter below, begins to elastically recover and deform upwards. This upward deformation and lifting displacement of the middle part of the diaphragm 18 forcibly pulls the sealing gasket 12, which is tightly fitted below, upwards in sync. During this process of lifting the entire composite sealing structure, the flat bottom surface of the sealing gasket 12 detaches from the upward fluid outlet edge of the IN end channel inside the valve body 5.

[0051] As the sealing gasket 12 lifts upward and detaches from the contact surface, the upward fluid outlet end of the IN end channel inside the valve body 5 is unobstructed, exposing an open fluid channel opening. The pressurized fluid medium surges upward from the inlet port on the upper surface of the valve plate 1, passes through the central hole of the first O-ring seal 7, and flows upward along the IN end channel of the valve body 5. The fluid medium overflows the confinement of the channel wall from the open IN end channel outlet, entering a large area within the physical region of the closed sealing space formed by the upper surface of the valve body 5 and the lower surface of the diaphragm 18. Driven by the pressure difference, the fluid medium filling this sealed space region flows laterally to find an outlet, flowing into the OUT end channel and being guided downward along this channel, finally exiting the valve body 5 from the outlet at the bottom surface of the valve body 5. The outflowing fluid medium then flows downward through the central hole of the second O-ring seal 7, accurately entering the corresponding outlet port on the upper surface of the valve plate 1, and flowing along the outlet channel inside the valve plate 1 towards the fluid discharge port. The entire power-on process converts the electrical energy input by lead angle 13 into magnetic field energy through enameled coil 10, and then converts the magnetic field energy into upward mechanical kinetic energy through fixed armature 14 and moving armature 11, which pulls up the blocking interface formed by diaphragm 18 and sealing gasket 12, and finally realizes the complete working state of fluid medium entering from IN end, passing through cavity and flowing out from OUT end.

[0052] This invention eliminates the need for machining the valve body cavity, retaining only the flow channel and customer mounting holes, simplifying valve body machining and shortening the length of the oblique holes, thus reducing the difficulty of flow channel machining. The valve body 5 can be injection molded, and the split structure greatly reduces machining difficulty and cost. The electromagnetic structure uses a material with high magnetic permeability, reducing product power consumption and generating greater electromagnetic attraction. The diaphragm-type composite sealing structure has the advantages of low cost, superior performance, high precision, and long service life.

[0053] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0054] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0055] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For instance, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual coupling, direct coupling, or communication connection may be through some interfaces; the indirect coupling or communication connection between units or modules may be electrical or other forms.

[0056] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0057] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

[0058] It should be understood that the above description is for illustrative purposes and not for limitation. Many embodiments and applications beyond the provided examples will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of this patent should not be determined by reference to the above description, but rather by reference to the foregoing claims and the full scope of their equivalents. For purposes of completeness, all articles and references, including patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the foregoing claims is not intended as a waiver of that subject matter, nor should it be construed as an indication that the applicant has not considered that subject matter as part of the disclosed inventive subject matter.

Claims

1. A split-type composite valve, characterized in that, Includes a valve plate (1) and multiple valve core assemblies (3); Multiple valve core assemblies (3) are arranged on the upper surface of the valve plate (1). The valve plate (1) has an inlet port and an outlet port at each valve core assembly (3) mounting position. The valve plate (1) has a fluid inlet port and multiple fluid outlet ports. The fluid inlet port is connected to each inlet port, and each outlet port is connected to a fluid outlet port. The valve core assembly (3) includes an electromagnet (4) and a valve body (5). The electromagnet (4) is located above the valve body (5). The bottom surface of the valve body (5) is attached to the upper surface of the valve plate (1). The valve body (5) has an IN end channel and an OUT end channel. The bottom inlet of the IN end channel is aligned with the liquid inlet port, and the bottom outlet of the OUT end channel is aligned with the liquid outlet port. The IN end channel and the OUT end channel are connected. The valve body (5) has a diaphragm (18) and a sealing gasket (12). The sealing gasket (12) is installed on the lower surface of the diaphragm (18). The bottom surface of the sealing gasket (12) is directly opposite the fluid outlet end of the IN end channel. The bottom of the electromagnet (4) is provided with a moving armature (11). The lower end of the moving armature (11) contacts the upper surface of the diaphragm (18). The moving armature (11) is provided with a compression spring (17) to provide downward thrust.

2. The split-type composite valve according to claim 1, characterized in that, Two annular sealing grooves are provided on the bottom surface of the valve body (5). The two annular sealing grooves surround the bottom inlet of the IN end channel and the bottom outlet of the OUT end channel, respectively. O-rings (7) are embedded in both annular sealing grooves. The upper and lower sides of the O-rings (7) contact the bottom surface of the valve body (5) and the upper surface of the valve plate (1), respectively.

3. The split-type composite valve according to claim 1, characterized in that, The electromagnet (4) includes a frame (8), a coil frame (9), an enameled coil (10), and a fixed armature (14). The coil frame (9) is located inside the frame (8), and the enameled coil (10) is wound around the outer surface of the coil frame (9). The coil frame (9) has a through hole running vertically through it. The fixed armature (14) is fixed in the upper half of the hole, and the movable armature (11) is slidably located in the lower half of the hole. The movable armature (11) is located directly below the fixed armature (14).

4. The split-type composite valve according to claim 3, characterized in that, A positioning block (16) is provided at the bottom of the electromagnet (4). A through hole is provided in the center of the positioning block (16), and the lower end of the moving armature (11) passes through the through hole and is exposed below the positioning block (16).

5. The split-type composite valve according to claim 4, characterized in that, The diaphragm (18) includes an outer edge portion and a central portion. The positioning block (16) presses on the outer edge portion of the diaphragm (18), and the valve body (5) is supported below the outer edge portion of the diaphragm (18). The central portion of the diaphragm (18) is suspended and contacts the moving armature (11).

6. The split-type composite valve according to claim 3, characterized in that, The bottom of the moving armature (11) has a stepped surface that extends downwards to the bottom end of the coil frame (9) hole and the bottom end of the frame (8). The top end of the compression spring (17) contacts the lower end face of the frame (8), and the bottom end of the compression spring (17) contacts the stepped surface at the bottom of the moving armature (11).

7. The split-type composite valve according to claim 3, characterized in that, An electrical box (15) is provided at the top of the electromagnet (4). The electrical box (15) is fixed on the frame (8). Inside the electrical box (15) is a lead angle (13). The lead angle (13) has a downwardly extending conductive connection end and an upwardly extending contact end. The conductive connection end is connected to the two ends of the wire of the enameled coil (10).

8. The split-type composite valve according to claim 3, characterized in that, The electromagnet (4) and the valve body (5) are connected by a long screw (6). The head of the long screw (6) is located at the bottom of the valve body (5), and the screw shank passes vertically upward through the outer shell structure of the valve body (5), extends upward and is screwed into the corresponding vertical threaded hole inside the electromagnet (4).

9. The split-type composite valve according to claim 1, characterized in that, Ten valve core assemblies (3) are arranged side by side on the upper surface of the valve plate (1). The side of the valve plate (1) is provided with a fluid inlet port and ten fluid outlet ports. The fluid inlet port is connected to ten liquid inlet branch channels. The ten liquid inlet branch channels are connected to ten liquid inlet interfaces respectively. The ten liquid outlet interfaces are connected to ten fluid outlet ports respectively.

10. A method for operating the split-type composite valve according to any one of claims 1-9, characterized in that, In the power-off state, the compression spring (17) applies a downward thrust to the moving armature (11), and the moving armature (11) moves downward; the lower end of the moving armature (11) pushes the diaphragm (18) to deform downward, and the diaphragm (18) drives the sealing gasket (12) to move downward; the bottom surface of the sealing gasket (12) is attached to the edge of the fluid outlet end of the IN end channel inside the valve body (5), cutting off the flow path of the fluid in the IN end channel; When the power is turned on, the electromagnet (4) generates an electromagnetic attraction; the moving armature (11) slides upward against the thrust of the compression spring (17), and the moving armature (11) releases the downward thrust on the diaphragm (18); the diaphragm (18) deforms upward and lifts, pulling the sealing gasket (12) upward, and the bottom surface of the sealing gasket (12) separates from the fluid outlet edge of the IN end channel inside the valve body (5); the fluid medium enters the IN end channel of the valve body (5), flows into the closed space enclosed by the valve body (5) and the diaphragm (18), and finally flows out from the OUT end channel.

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