Center wiring type electromagnetic valve and execution device
By setting the coil and moving iron core of the solenoid valve in the center of the valve seat, the problems of large volume and limited installation of the traditional solenoid valve are solved, and more efficient installation and more stable control are achieved.
Patent Information
- Application Number
- CN202421634280.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-10
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-07-10
AI Technical Summary
The coil of the traditional solenoid valve is arranged on the end surface, resulting in a large overall volume, which can easily cause interference and affect installation when the installation space is limited.
The central wiring design is adopted to move the coil to the center position of the solenoid valve seat, and a solenoid coil and a moving iron core are set in the center of the valve seat to form a more concentrated and uniform magnetic field.
Reduces the volume of the solenoid valve, improves installation efficiency, and improves response speed and control accuracy through a more concentrated and uniform magnetic field, enhancing structural stability and durability.
Smart Images
Figure CN222880479U_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of valves, and in particular relates to a central wiring type solenoid valve and an actuator. Background Art
[0002] Solenoid valve is an actuator widely used in automatic control systems, mainly used to control the flow of fluid (liquid or gas). When the electromagnetic coil is energized, the magnetic field generated attracts the moving iron core, causing the valve to open or close, thereby controlling the flow of the fluid. When the electromagnetic coil is de-energized, the moving iron core returns to its initial position under the action of the spring force, and the valve returns to the closed or open state. The solenoid valve can achieve fast switching response, is suitable for high-frequency operation, and can be controlled by simple electrical signals, which is compatible with modern control systems; at the same time, it has a simple structure, easy maintenance, and high reliability; therefore, the solenoid valve plays an important role in various industrial and civil fields.
[0003] However, the coil of the traditional solenoid valve is on the end face to ensure that the moving direction of the moving iron core is consistent with the moving direction of the valve stem, thereby facilitating the moving iron core to push the valve stem to move. However, this setting will cause the overall size of the solenoid valve to be larger. When the installation space is limited, the protruding coil will cause interference and affect the installation. Summary of the invention
[0004] The purpose of the present disclosure is to provide a central wiring type solenoid valve and an actuator, which can solve at least part of the above-mentioned technical problems.
[0005] The first aspect of the embodiment of the present disclosure provides a centrally-wired solenoid valve, which includes a valve seat and an air inlet, a first air outlet, a second air outlet, a coil housing, a static iron core assembly and a moving iron core arranged on the valve seat; the valve seat is provided with a front side wall, a rear side wall and a top wall connected between the front side wall and the rear side wall, wherein the air inlet is arranged on the front side wall, and the first air outlet and the second air outlet are arranged on the rear side wall; the coil housing is arranged in the middle area of the top wall, and the static iron core assembly and the moving iron core are arranged inside the coil housing.
[0006] The technical effect achieved is as follows: the utility model moves the coil to the center position of the entire solenoid valve seat, so that the volume of the entire solenoid valve is further reduced, and the solenoid valve can be installed more conveniently even when the installation space is limited, thereby improving the installation efficiency; at the same time, the electromagnetic coil and the moving iron core are arranged in the center of the valve seat. This design can make the electromagnetic force more concentrated, improve the response speed and control accuracy of the solenoid valve, and help to form a more uniform and symmetrical magnetic field around the moving iron core, reducing the torque deviation caused by the uneven magnetic field, thereby enhancing the structural stability and durability of the entire solenoid valve.
[0007] Optionally, the moving iron core is movably installed inside the static iron core assembly, and stays in a first position and a second position according to whether the central wiring solenoid valve is energized; when the moving iron core stays in the first position, the air inlet is connected to the second air outlet; when the moving iron core stays in the second position, the air inlet is connected to the first air outlet.
[0008] The technical effect achieved is: the mobility of the moving iron core allows the solenoid valve to change the flow direction of the fluid in the power-on and power-off states, realizing two different working modes and increasing the functionality of the valve.
[0009] Optionally, the center-wiring solenoid valve further includes a first reset member; the first reset member is connected between the static iron core assembly and the moving iron core, and when the center-wiring solenoid valve is powered off, the first reset member forces the moving iron core to return to the first position.
[0010] The technical effect achieved is: the setting of the first reset member ensures that the moving iron core can be forced to return to the initial position when the power is off, thereby improving the safety and reliability of the solenoid valve.
[0011] Optionally, the valve seat has a transverse movable channel inside; the central wiring solenoid valve also includes a valve stem movably arranged in the movable channel, so that the air inlet can be selectively connected to the first air outlet or the second air outlet.
[0012] The technical effect achieved is: the design of the lateral movement channel inside the valve seat and the valve stem realizes the connection between the air inlet and different air outlets, thereby increasing the flexibility of the valve.
[0013] Optionally, the central wiring type solenoid valve further comprises a moving hole provided on the valve seat for allowing the moving iron core to move vertically; a piston is provided at one end of the valve stem, and the piston divides the moving channel into a first cavity and a second cavity for accommodating the valve stem; the second cavity is communicated with the moving hole;
[0014] When the central wiring type solenoid valve is energized, the moving iron core does not block the communication between the second cavity and the moving hole, so that the gas can reach the first cavity and push the piston to drive the valve stem to move.
[0015] The technical effect achieved is: the connection between the second cavity and the movable hole is controlled by the moving iron core, and the movement of the valve stem is driven by air pressure, so that the moving iron core, the static iron core combination and the coil housing can be installed in the middle position of the valve seat, thereby reducing the volume of the entire center-wired solenoid valve.
[0016] Optionally, the central wiring type solenoid valve also includes an air nozzle; the air nozzle is arranged between the second cavity and the movable hole.
[0017] The technical effect achieved is: the sealing effect of the air nozzle in cooperation with the moving iron core is ensured by setting the air nozzle, thereby avoiding air leakage between the second cavity and the moving hole.
[0018] Optionally, the central wiring type solenoid valve further includes a second reset member; the second reset member is connected and arranged between the valve seat and the valve stem, and when the central wiring type solenoid valve is powered off, the second reset member forces the valve stem to return to the first position. The technical effect achieved is that the provision of the second reset member ensures that the valve stem can return to the initial position when the power is off, further enhancing the safety and reliability of the solenoid valve.
[0019] Optionally, a first threaded portion is provided inside the air inlet; the center-wiring solenoid valve also includes a first connector; the first connector is provided with a first connecting hole for plugging in a hose, and when the first connector is threadedly engaged with the threaded portion inside the air inlet, the first connecting hole is connected to the air inlet.
[0020] The technical effect achieved is that the design of the first threaded portion and the first connector inside the air inlet allows for quick and convenient connection of the hose, thereby improving the installation convenience and applicability of the solenoid valve.
[0021] Optionally, the central wiring type solenoid valve further includes a first exhaust port and a second exhaust port which are arranged on the front side wall; the first exhaust port and the second exhaust port are respectively located on both sides of the air inlet.
[0022] The technical effect achieved is: the design of the first exhaust port and the second exhaust port on the front side wall provides an exhaust function for the solenoid valve, which helps to reduce system pressure and heat and improve system stability.
[0023] Optionally, a second threaded portion is provided in both the first exhaust port and the second exhaust port; the center-wiring solenoid valve also includes a second connector; the second connector is provided with a second connecting hole for plugging in a hose, and when the second connector is threadedly engaged with the second threaded portion, the second connecting hole is connected to the exhaust port.
[0024] The technical effect achieved is: the design of the second threaded portion and the second connector inside the exhaust port allows the exhaust port to be quickly and conveniently connected to the hose, thereby enhancing the exhaust capacity and installation convenience of the solenoid valve.
[0025] An actuator comprises the central wiring type solenoid valve as described above.
[0026] The technical effect achieved is: the execution device includes a central wiring type electromagnetic valve, and the characteristics of the electromagnetic valve are used to achieve precise control, thereby improving the performance and application range of the execution device. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 It is a front view of a central wiring type solenoid valve in an embodiment of the present disclosure;
[0028] Figure 2 is a cross-sectional view of a central wiring type solenoid valve in an embodiment of the present disclosure;
[0029] Figure 3 A schematic diagram of a central wiring type solenoid valve when it is powered on in an embodiment of the present disclosure Figure 1 ;
[0030] Figure 4 A schematic diagram of a central wiring type solenoid valve in an embodiment of the present disclosure when power is off Figure 1 ;
[0031] Figure 5 A schematic diagram of a central wiring type solenoid valve when it is powered on in an embodiment of the present disclosure Figure 2 ;
[0032] Figure 6 A schematic diagram of a central wiring type solenoid valve in an embodiment of the present disclosure when power is off Figure 2 .
[0033] Explanation of the accompanying drawings: 1. valve seat; 2. coil housing; 3. static iron core assembly; 4. moving iron core; 50. air inlet; 51. first air outlet; 52. second air outlet; 53. first exhaust port; 54. second exhaust port; 55. first mounting hole; 56. second mounting hole; 11. front side wall; 12. rear side wall; 13. top wall; 57. movable channel; 6. valve stem; 7. second reset member; 8. air nozzle; 9. first reset member; 60. piston. DETAILED DESCRIPTION
[0034] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The modes described in the following exemplary embodiments do not represent all modes consistent with the present disclosure. Instead, they are merely examples of devices consistent with some aspects of the present disclosure as detailed in the appended claims.
[0035] The terms used in the present disclosure are only for the purpose of describing specific embodiments, and are not intended to limit the present disclosure. Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. The words "first", "second" and similar words used in the present disclosure specification and claims do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, similar words such as "one" or "one" do not indicate quantitative restrictions, but indicate that there is at least one, and will be separately described if only "one" is referred to. "Multiple" or "several" means two or more. Unless otherwise specified, similar words such as "front", "rear", "bottom" and / or "top" are only for the convenience of explanation, and are not limited to one position or one spatial orientation. Similar words such as "include" or "comprise" mean that the elements or objects appearing in front of "include" or "comprise" cover the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. "Connected" or "connected" and similar words are not limited to physical or mechanical connections, and may include electrical connections, whether direct or indirect. The singular forms "a", "an", "the" and "the" used in this disclosure and the appended claims are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
[0036] A first aspect of the disclosed embodiment provides a central wiring type solenoid valve. Figure 1 and Figure 2As shown, the central wiring type solenoid valve includes a valve seat 1 and a coil housing 2 arranged on the valve seat 1, a static iron core assembly 3, a moving iron core 4, an air inlet 50, a first air outlet 51, a second air outlet 52, a first exhaust port 53, a second exhaust port 54, a first mounting hole 55 and a second mounting hole 56; the valve seat 1 is provided with a front side wall 11, a rear side wall 12, and a top wall 13 and a bottom wall connected and arranged between the front side wall 11 and the rear side wall 12, wherein the air inlet 50, the first exhaust port 53 and the second exhaust port 54 are arranged on the front side wall 11, and the first exhaust port 53 and the second exhaust port 54 are respectively located on both sides of the air inlet 50; the first air outlet 51 and the second air outlet 52 are arranged on the rear side wall 12; the first mounting hole 55 and the second mounting hole 56 are arranged through the front side wall 11 and the rear side wall 12. On the side wall 11 and the rear side wall 12; the coil housing 2 is arranged in the middle area of the top wall 13, and the static iron core assembly 3 and the moving iron core 4 are arranged in the coil housing 2. The central wiring solenoid valve in this embodiment moves the coil to the center position of the entire solenoid valve seat 1, so that the volume of the entire solenoid valve is further reduced, and the solenoid valve can be installed more conveniently even when the installation space is limited, thereby improving the installation efficiency; at the same time, the electromagnetic coil and the moving iron core 4 are arranged in the center of the valve seat 1. This design can make the electromagnetic force more concentrated, improve the response speed and control accuracy of the solenoid valve, and help to form a more uniform and symmetrical magnetic field around the moving iron core 4, reduce the torque deviation caused by the uneven magnetic field, thereby enhancing the structural stability and durability of the entire solenoid valve.
[0037] As an optional embodiment, a first threaded portion is provided inside the air inlet 50; the central wiring type solenoid valve further includes a first connector; the first connector is provided with a first connection hole for plugging a hose, and when the first connector is threadedly engaged with the first threaded portion inside the air inlet 50, the first connection hole is communicated with the air inlet 50. The first connector is threadedly engaged with the first threaded portion inside the air inlet 50, thereby realizing a convenient connection between the hose and the solenoid valve, and facilitating the introduction of gas; the provision of the first connector enables the solenoid valve to adapt to more types of pipeline connections, thereby increasing its wide application.
[0038] As an optional embodiment, the first exhaust port 53 and the second exhaust port 54 are both provided with a second threaded portion; the central wiring type solenoid valve also includes a second connector; the second connector is provided with a second connection hole for plugging a hose, and when the second connector is threadedly engaged with the second threaded portion, the second connection hole is connected to the air outlet. The design of the second connector allows the air outlet to be connected to other equipment or pipelines through a hose, thereby expanding the use function of the solenoid valve; and the hose connection method is convenient for disassembly and replacement when necessary, thereby reducing maintenance costs.
[0039] As an optional embodiment, the moving iron core 4 is movably installed inside the static iron core combination 3, and stays at the first position and the second position according to whether the central wiring type solenoid valve is powered on or not; when the moving iron core 4 stays at the first position, the air inlet 50 is connected with the first air outlet 52; when the moving iron core 4 stays at the second position, the air inlet 50 is connected with the second air outlet 51. The introduction of the moving iron core 4 enables the solenoid valve to accurately control the flow of gas, and stays at different positions according to whether it is powered on or not, so as to realize the opening and closing of the gas path; at the same time, the movable design of the moving iron core 4 ensures that the solenoid valve can still maintain high reliability under frequent operation.
[0040] As an optional embodiment, the central wiring type solenoid valve further includes a first reset member; the first reset member is connected and arranged between the static iron core assembly member 3 and the moving iron core 4, and when the central wiring type solenoid valve is powered off, the first reset member forces the moving iron core 4 to return to the first position. Preferably, the first reset member is a spring; the setting of the first reset member ensures that the moving iron core 4 can be forced to return to the initial position when the power is off, thereby improving the safety and reliability of the solenoid valve.
[0041] As an optional embodiment, the valve seat 1 has a transverse moving channel 57 and a vertical moving hole inside; the moving iron core 4 can move along the moving hole; the central wiring type solenoid valve also includes a valve stem 6 that is movably arranged in the moving channel 57; the moving iron core 4 can control the piston 60 to push the valve stem 6 to move horizontally by powering on or off, thereby connecting the air inlet 50 with the first air outlet 51 or the second air outlet 52. The design of the transverse moving channel 57 and the valve stem 6 inside the valve seat 1 allows the piston 60 to push the valve stem 6 to move horizontally, thereby connecting the air inlet 50 with different air outlets, and increasing the flexibility of the valve.
[0042] like Figure 3 and Figure 4 As shown, as an optional embodiment, the central wiring type solenoid valve further includes a second reset member 7; the second reset member 7 is connected and arranged between the valve seat 1 and the valve stem 6. When the central wiring type solenoid valve is powered off, the second reset member 7 forces the valve stem 6 to return to the first position. The provision of the second reset member 7 ensures that the valve stem 6 can return to the initial position when the power is off, further enhancing the safety and reliability of the solenoid valve.
[0043] As an optional embodiment, a piston 60 is provided at one end of the valve stem 6, and the piston 60 divides the moving channel 57 into a first cavity and a second cavity for accommodating the valve stem 6; the second cavity is communicated with the moving hole;
[0044] When the center-connected solenoid valve is powered on, the moving iron core 4 does not block the connection between the second cavity and the moving hole, so that the gas can reach the first cavity and push the piston 60 to drive the valve stem 6 to move.
[0045] Preferably, the central wiring type solenoid valve further comprises an air nozzle 8, which is arranged between the second cavity and the moving hole. The air nozzle 8 is arranged to ensure the sealing effect of the air nozzle 8 in cooperation with the moving iron core 4, thereby preventing air leakage between the second cavity and the moving hole.
[0046] Specifically, Figure 3 and Figure 5 As shown, when the center-connected solenoid valve is energized, the coil generates a magnetic field force to push the moving iron core 4 to overcome the force of the first reset member 9, i.e., the spring, and then open the air nozzle 8 to connect the second cavity with the movable hole, and the air source passes through the valve seat 1 and the air path in the end cover of the piston 60 to reach the first cavity, pushing the piston 60 to move right, and the piston 60 pushes the valve stem 6 to move right, so that the air inlet 50 is connected with the first air outlet 51;
[0047] like Figure 4 and Figure 6 As shown, when the center-wired solenoid valve is powered off, the moving iron core 4 blocks the air nozzle 8 under the action of the first reset member 9, i.e., the spring, and there is no compressed air in the first cavity. The air source is redirected to flow into the second cavity, and under the action of the air source and the second reset member 7, i.e., the spring, the valve stem 6 is pushed to move left, thereby achieving communication between the air inlet 50 and the second air outlet 52.
[0048] The second aspect of the embodiment of the present disclosure provides an actuator, which includes an actuator and a center-wired solenoid valve as described above. The actuator realizes the inflow and outflow of gas through the control of the center-wired solenoid valve. When the solenoid valve is energized, the moving iron core 4 is in a specific position, allowing gas to flow into the A chamber of the actuator from one port and discharge the gas from the B chamber of the actuator from another port. Conversely, when the solenoid valve loses power, the flow direction of the gas will change; by precisely controlling the flow of gas, they provide stable and reliable power support for various devices and systems. Under the control of the center-wired solenoid valve, the above-mentioned actuator can realize precise control and operation of the gas, so that the actuator in the present disclosure can be widely used in industrial automation, fluid control, medical equipment and other fields.
[0049] As an optional implementation, the actuator has a first working port and a second working port; the first working port is communicated with the first air outlet 51 ; the second working port is communicated with the second air outlet 52 .
[0050] As an optional embodiment, the actuator is provided with a third mounting hole and a fourth mounting hole; the third mounting hole and the fourth mounting hole are respectively adapted to the first mounting hole 55 and the second mounting hole 56; the actuator also includes two fasteners; the two fasteners respectively pass through the first mounting hole 55 and the second mounting hole 56, and then are respectively threadedly connected to the third mounting hole and the fourth mounting hole. The actuator is tightly connected to the solenoid valve through the fasteners, which ensures the stability and safety of the system. At the same time, the design of the mounting holes and fasteners makes the installation process of the actuator simple and quick.
[0051] It should be noted that a sealing ring is further provided between the actuator and the solenoid valve to ensure the sealing of the connection between the first air outlet 51, the second air outlet 52 and the first working port and the second working port.
[0052] The above are only preferred embodiments of the present disclosure and are not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure should be included in the scope of protection of the present disclosure.
Claims
1. A central wiring type solenoid valve, characterized in that: The central wiring type solenoid valve includes a valve seat and an air inlet, a first air outlet, a second air outlet, a coil shell, a static iron core assembly and a moving iron core arranged on the valve seat; the valve seat is provided with a front side wall, a rear side wall and a top wall connected between the front side wall and the rear side wall, wherein the air inlet is arranged on the front side wall, and the first air outlet and the second air outlet are arranged on the rear side wall; the coil shell is arranged in the middle area of the top wall, and the static iron core assembly and the moving iron core are arranged in the coil shell.
2. A central wiring type solenoid valve according to claim 1, characterized in that: The moving iron core is movably installed inside the static iron core combination, and stays at a first position and a second position according to whether the central wiring solenoid valve is energized; when the moving iron core stays at the first position, the air inlet is connected to the second air outlet; when the moving iron core stays at the second position, the air inlet is connected to the first air outlet.
3. A central wiring type solenoid valve according to claim 2, characterized in that: The central wiring type solenoid valve also includes a first reset member; the first reset member is connected and arranged between the static iron core assembly and the moving iron core, and when the central wiring type solenoid valve is powered off, the first reset member forces the moving iron core to return to the first position.
4. A central wiring type solenoid valve according to claim 2, characterized in that: The valve seat has a transverse moving channel inside; the central wiring type solenoid valve also includes a valve stem movably arranged in the moving channel, so that the air inlet can be selectively connected to the first air outlet or the second air outlet.
5. A central wiring type solenoid valve according to claim 4, characterized in that: The central wiring type solenoid valve also includes a second reset member; the second reset member is connected and arranged between the valve seat and the valve stem, and when the central wiring type solenoid valve is powered off, the second reset member forces the valve stem to return to the first position.
6. A centrally connected solenoid valve according to claim 5, characterized in that: The central wiring type solenoid valve further comprises a moving hole provided on the valve seat for allowing the moving iron core to move vertically; a piston is provided at one end of the valve stem, and the piston divides the moving channel into a first cavity and a second cavity for accommodating the valve stem; the second cavity is communicated with the moving hole; When the central wiring type solenoid valve is energized, the moving iron core does not block the communication between the second cavity and the moving hole, so that the gas can reach the first cavity and push the piston to drive the valve stem to move.
7. A centrally connected solenoid valve according to claim 6, characterized in that: The central wiring type solenoid valve also includes an air nozzle; the air nozzle is arranged between the second cavity and the moving hole.
8. A centrally connected solenoid valve according to claim 1, characterized in that: A first threaded portion is provided inside the air inlet; the central wiring solenoid valve also includes a first connector; the first connector is provided with a first connecting hole for plugging a hose, and when the first connector is threadedly matched with the threaded portion inside the air inlet, the first connecting hole is connected to the air inlet.
9. A centrally connected solenoid valve according to claim 1, characterized in that: The central wiring type solenoid valve further comprises a first exhaust port and a second exhaust port arranged on the front side wall; the first exhaust port and the second exhaust port are respectively located on both sides of the air inlet; The first exhaust port and the second exhaust port are both provided with a second threaded portion; the central wiring solenoid valve also includes a second connector; the second connector is provided with a second connecting hole for plugging a hose, and when the second connector is threadedly matched with the second threaded portion, the second connecting hole is connected to the exhaust port.
10. An execution device, characterized in that: The actuator comprises a centrally connected solenoid valve as claimed in any one of claims 1 to 9.