Electromagnetic coil metal inductive switch

Abstract

The embodiment of the utility model provides an electromagnetic coil metal inductive switch, and belongs to the technical field of switches. The electromagnetic coil metal inductive switch comprises a switch upper cover and a switch base which are movably connected based on a movable guide core, wherein the switch upper cover can approach / leave the switch base through the movable guide core based on a switch triggering action of a user; a metal induction block fixedly extends downwards from one side, deviating from the axis, of the movable guide core along the longitudinal direction; the bottom of the switch base is fixedly connected with a PCB (Printed Circuit Board) provided with an induction coil through a switch fixing plate; the orthographic projection of the metal induction block along the axis of the metal induction block falls within the coil projection range of the induction coil; the metal induction block is close to / away from the induction coil through the movable guide core along with the switch triggering action based on a user, so that an inductance change signal is generated between the metal induction block and the induction coil. The problems that in an existing scheme, induction accuracy is not high, and light transmittance of LED light is not good are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of switches, in particular to an electromagnetic coil metal induction switch. Background Art

[0002] Currently, electromagnetic coil metal induction switches are widely used in various control systems and sensing devices. However, existing technologies still have many shortcomings in structural design and performance, and cannot fully meet the increasingly complex application requirements. In particular, the design of inductor coils integrated on PCBs often has the following significant problems:

[0003] 1) Existing electromagnetic induction coils typically feature a conical cross-section formed on a printed circuit board (PCB). This design results in a small inductive cross-sectional area. Since coil sensitivity is proportional to its cross-sectional area, a smaller cross-sectional area can easily lead to decreased sensitivity, thus impacting the overall performance and accuracy of the device. For example, in high-speed electromagnetic induction systems, a weak induction signal can cause signal processing delays or error accumulation, severely impacting efficiency and safety in practical applications.

[0004] 2) In existing designs, the through-axis on the PCB is typically located in the center of the structure. This structural design limits the layout of other components within the sensor switch. For example, common LED lighting systems require ample space for both light storage and light transmission. However, the centrally located through-axis significantly compresses the space required to accommodate the LED lights and reduces the light transmission surface. This design limitation leads to issues such as insufficient LED brightness and a limited illumination range, which in turn impacts the user experience.

[0005] In order to solve the problems of low sensing accuracy and poor light transmittance of LED lights in existing solutions, a new electromagnetic coil metal induction switch needs to be proposed. Utility Model Content

[0006] The purpose of the embodiments of the present utility model is to provide an electromagnetic coil metal induction switch to at least solve the problems of low induction accuracy and poor light transmittance of LED lights in existing solutions.

[0007] In order to achieve the above-mentioned objectives, an embodiment of the present utility model provides an electromagnetic coil metal induction switch, which includes: a switch cover and a switch base movably connected based on a movable guide core, and the switch cover can approach / move away from the switch base through the movable guide core based on the user's switch trigger action; a metal induction block is fixedly extended longitudinally downward on one side of the movable guide core eccentric to the axis, and a PCB circuit board provided with an induction coil is fixedly connected to the bottom of the switch base through a switch fixing plate; the orthographic projection of the metal induction block along the axis of the metal induction block falls within the coil projection range of the induction coil; the metal induction block approaches / moves away from the induction coil through the movable guide core based on the switch trigger action of the user, so that an inductance change signal is generated between the metal induction block and the induction coil.

[0008] Furthermore, there is a through hole in the switch cover in the longitudinal direction, the shape of the movable guide core is matched with the through hole, and the movable guide core is installed and connected to the switch cover based on the through hole.

[0009] Furthermore, a first groove is provided on the eccentric side of the movable guide core, the metal sensing block is inserted into the first groove along one axial side for connection, and the other side of the metal sensing block extends along the axial direction of the movable guide core relative to the bottom plane of the movable guide core.

[0010] Furthermore, a base through hole is provided on the side of the switch base facing the metal sensing block, through which the metal sensing block can pass. When the metal sensing block approaches / moves away from the induction coil through the movable guide core based on the switch triggering action of the user, the metal sensing block can move longitudinally based on the base through hole.

[0011] Furthermore, the induction coil is an elliptical induction coil, and the elliptical range surrounded by the elliptical induction coil of the PCB circuit board is the circuit board through hole; the orthographic projection shape of the metal induction block along the axis of the metal induction block is an ellipse in the same direction as the long axis of the elliptical induction coil.

[0012] Furthermore, when the metal sensor block approaches or moves away from the induction coil via the movable guide core in response to a user-triggered switch action, the metal sensor block can pass through the circuit board through-hole when the metal sensor block reaches its maximum travel distance from the induction coil. Furthermore, a second annular groove is provided on the side of the movable guide core facing the switch base, centered about the axis of the movable guide core; a third groove of the same size as the second groove is provided on the side of the switch base facing the movable guide core, centered about the axis of the switch base; and a spring is provided between the movable guide core and the switch base, with the spring's axial ends inserted into the second and third grooves, respectively.

[0013] Furthermore, the induction coil includes at least an upper induction coil and a lower induction coil; the upper induction coil is arranged on the surface of the PCB circuit board on one side facing the switch base; and the lower induction coil is arranged on the surface of the other side of the PCB circuit board.

[0014] Furthermore, an LED lamp mounting groove for mounting an LED lamp is provided on the PCB circuit board, and the electromagnetic coil metal induction switch also includes an LED lamp mounted in the LED lamp mounting groove.

[0015] Furthermore, the induction coil is externally connected to a signal transmission interface via a PCB circuit board for outputting an inductance change signal.

[0016] Through the above technical solution, the electromagnetic coil metal induction switch effectively solves the problem of limited LED light transmission caused by the penetration axis being located in the middle in the existing technology by designing the movable guide core to be a structure that deviates from the axis. Due to the off-axis design of the guide core, more space is freed up, increasing the accommodation area of the LED light and expanding the light transmission area, thereby improving the brightness and lighting range of the LED. At the same time, the orthographic projection of the axis of the metal sensing block still falls within the coil projection range of the induction coil, ensuring that the sensing sensitivity and accuracy are not affected. Overall, this structural optimization not only enhances the performance of the LED light, but also maintains the normal function of the induction switch.

[0017] Other features and advantages of the embodiments of the present invention will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the embodiments of the present invention and constitute a part of the specification. Together with the following detailed description, they are used to explain the embodiments of the present invention, but do not constitute a limitation of the embodiments of the present invention. In the accompanying drawings:

[0019] Figure 1 This is a structural diagram of an electromagnetic coil metal induction switch provided by one embodiment of the present utility model;

[0020] Figure 2 The figure is an exploded diagram of an electromagnetic coil metal induction switch provided in one embodiment of the utility model.

[0021] Description of Reference Numerals

[0022] 10- movable guide core; 20- switch cover; 30- metal sensor block; 40- switch fixing plate; 50- switch base; 60- PCB circuit board; 70- LED light; 80- spring;

[0023] 601-upper induction coil; 602-lower induction coil. DETAILED DESCRIPTION

[0024] The following describes the specific implementation of the embodiment of the present invention in detail with reference to the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the embodiment of the present invention and is not intended to limit the embodiment of the present invention.

[0025] In the embodiments of the present invention, unless otherwise specified, directional words such as "up, down, left, right" generally refer to the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use.

[0026] The terms "first", "second", "third", etc. are only used for distinction and description and should not be understood as indicating or implying relative importance.

[0027] Terms such as "horizontal," "vertical," and "overhanging" do not necessarily mean that a component must be absolutely horizontal, vertical, or overhanging. A slight tilt is permitted. For example, "horizontal" simply means that its direction is more horizontal than "vertical." It does not mean that the structure must be completely horizontal, but rather that a slight tilt is permitted.

[0028] Furthermore, terms like "approximately" and "substantially" are intended to clarify that the relevant content does not require absolute precision, but rather allows for certain deviations. For example, "approximately equal" does not simply mean absolute equality. Because absolute equality is difficult to achieve in actual production and operational processes, certain deviations generally exist. Therefore, in addition to absolute equality, "approximately equal" also encompasses the aforementioned situation of certain deviations. Taking this as an example, in other contexts, unless otherwise specified, terms like "approximately" and "substantially" have similar meanings as described above.

[0029] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0030] Please refer to Figure 1This embodiment provides an electromagnetic coil metal induction switch, comprising: a switch cover 20 and a switch base 50 movably connected via a movable guide core 10, wherein the switch cover 20 can approach or move away from the switch base 50 via the movable guide core 10 in response to a user's switch triggering action; a metal induction block 30 is fixedly extended longitudinally downward from an eccentric side of the movable guide core 10; a PCB circuit board 60 provided with an induction coil is fixedly connected to the bottom of the switch base 50 via a switch fixing plate 40; an orthographic projection of the metal induction block 30 along its axis falls within a coil projection range of the induction coil; the metal induction block 30 approaches or moves away from the induction coil via the movable guide core 10 in response to a user's switch triggering action, thereby generating an inductance change signal between the metal induction block 30 and the induction coil.

[0031] Preferably, Figure 2 The switch upper cover 20 has an upper cover through hole along the longitudinal direction, the shape of the movable guide core 10 fits the upper cover through hole, and the movable guide core 10 is installed and connected to the switch upper cover 20 based on the upper cover through hole.

[0032] In an embodiment of the present invention, a through hole (upper cover through hole) is designed in the longitudinal direction of the switch cover 20, which is used to accommodate the movable guide core 10. The shape of the movable guide core 10 is precisely designed to fit the through hole of the upper cover, which means that the guide core can be tightly embedded in the hole without loosening or getting stuck. The movable guide core 10 is installed and connected to the switch cover 20 through this fitting relationship. When the user triggers the switch, the movable guide core 10 can move longitudinally along the through hole, thereby triggering the change of the inductance signal between the metal sensing block 30 at its bottom and the induction coil below. Through the close fit between the movable guide core 10 and the through hole, it can be ensured that the movable guide core 10 remains stable during movement, avoiding large shaking or deviation, and improving the triggering accuracy and sensitivity of the switch. This structure can ensure that the guide core moves along a fixed trajectory, avoiding the problem of switch failure or inaccurate signal due to error. In addition, the precise alignment of the bottom of the movable guide core 10 with the induction coil helps to generate a more stable inductance signal, ensuring the reliability of the switch action.

[0033] Preferably, a first groove is provided on the eccentric side of the movable guide core 10, and the metal sensing block 30 is inserted into the first groove along one axial side for connection, and the other side of the metal sensing block 30 extends along the axial direction of the movable guide core 10 relative to the bottom plane of the movable guide core 10.

[0034] In an embodiment of the present invention, a first groove is provided on an off-axis side of the movable guide core 10. This groove provides a location for accommodating and securing the metal sensor block 30. The metal sensor block 30 is inserted into the first groove along its axial direction and forms a secure connection with the structure of the movable guide core 10. This connection not only ensures a tight fit between the metal sensor block 30 and the movable guide core 10, but also ensures its stability during longitudinal movement. The other side of the metal sensor block 30 extends axially relative to the bottom plane of the movable guide core 10. This design allows the sensor block to move closer to or further away from the induction coil during the movement of the movable guide core 10, generating an inductance change signal. This design fully utilizes the extended structure of the sensor block, ensuring that the relative distance between the sensor block and the induction coil can change significantly during the longitudinal movement of the movable guide core 10, thereby improving sensing accuracy. The off-axis design not only leaves more space for the movable guide core 10 to accommodate other components, such as the LED light system 70, but also allows the metal sensor block 30 to have a larger movement space while maintaining stability, further enhancing the structural flexibility and functionality of the entire switch.

[0035] Preferably, the switch base 50 is provided with a base through hole on the side facing the metal sensing block 30, through which the metal sensing block 30 can pass. When the metal sensing block 30 approaches / moves away from the induction coil through the movable guide core 10 based on the switch trigger action of the user, it can move longitudinally based on the base through hole.

[0036] In this embodiment of the present invention, the switch base 50 is designed with a through-hole on the side facing the metal sensor block 30. The hole's size and location allow the metal sensor block 30 to pass through. When the user triggers the switch, the movable guide 10 drives the metal sensor block 30 in longitudinal motion. This through-hole allows the metal sensor block 30 to move freely as it approaches or moves away from the induction coil, thereby ensuring the generation and change of the sensing signal.

[0037] The design of the through-hole in the base ensures that the metal sensing block 30 has a clear movement path when moving longitudinally, avoiding the possibility of lateral deviation. This design greatly improves the accuracy of the movement of the metal sensing block 30, thereby ensuring that the relative distance change with the induction coil is more stable and accurate, thereby improving the sensitivity of the sensing signal. The presence of the through-hole allows the metal sensing block 30 to maximize the use of the space of the switch base 50 for longitudinal movement without being restricted by the structure of the base body. Through this design, the range of motion of the metal sensing block 30 can be increased without increasing the overall volume of the switch, thereby enhancing the flexibility and adaptability of the sensing system. Since the metal sensing block 30 can freely and stably pass through the through-hole in the base for longitudinal movement, the relative movement between the sensing block and the induction coil is smoother. This design ensures that when the user operates, the sensing block can respond to the action in a timely manner, making the inductance change signal more accurate and stable, and reducing problems caused by mechanical jamming or signal lag.

[0038] Preferably, the induction coil is an elliptical induction coil, and the elliptical range surrounded by the elliptical induction coil of the PCB circuit board 60 is the circuit board through hole; the orthographic projection shape of the metal induction block along the axis of the metal induction block is an ellipse in the same direction as the long axis of the elliptical induction coil.

[0039] In the embodiment of the present utility model, the traditional inductive switch structure usually adopts a circular coil and a centrally designed through-hole. This design limits the inductive cross-sectional area, resulting in low inductive sensitivity. However, this technology greatly optimizes the inductive structure and improves the overall performance of the device by adopting an elliptical inductive coil and a corresponding elliptical through-hole on the PCB circuit board 60. The inductive coil is designed to be elliptical, which greatly increases the cross-sectional area of the inductive coil. Since the inductive sensitivity is proportional to the inductive cross-sectional area of the coil, the elliptical design can effectively enhance the inductive ability of the coil. At the same time, an elliptical through-hole is provided on the PCB circuit board 60 corresponding to the range of the elliptical inductive coil. Such a design allows the effective area of the inductive coil to be expanded, thereby improving the inductive efficiency of the entire system.

[0040] Furthermore, the elliptical cone design improves the sensing sensitivity and signal transmission accuracy by increasing the projected sensing area of the metal sensing block and the sensing coil. As the movable guide core is pressed, the projected sensing area of the elliptical cone metal sensing block and the PCB sensing coil becomes larger, which means that the sensing coil can capture richer inductance change data and facilitate segmented signal processing. Compared with traditional conical metal blocks, the elliptical cone metal sensing block has a larger projected sensing area at the same volume or size. When the movable guide core is pressed, the inductance change between the elliptical cone metal sensing block and the PCB sensing coil is more significant, thereby greatly improving the sensitivity of the sensing system. The higher sensitivity enables the system to sense tiny physical changes more quickly and accurately, thereby improving the response speed of the sensing switch.

[0041] Furthermore, the larger projected sensing area brought about by the elliptical cone design enables the induction coil to obtain a wider data range when capturing the inductance change signal. This provides more information for signal processing and analysis, and helps to refine the feedback effect of the induction switch, especially in scenarios that require higher resolution, such as tiny displacement sensing or multi-segment signal judgment. Due to the unique shape of the elliptical cone metal sensing block and the increased projected sensing area, the sensing system can capture more signal change points during the pressing process, which facilitates segmented signal processing. Compared with the traditional conical design, the elliptical cone metal block can provide multi-segment signal output within a smaller range of pressing force changes. This multi-segment signal sensing capability provides more feedback levels for application scenarios and can support more complex and detailed control commands.

[0042] The elliptical induction coil has a larger cross-sectional area than the traditional circular coil. This design improvement has significantly improved the induction sensitivity, especially in application scenarios that require precise perception of tiny inductance changes. The elliptical cross-section can capture more induction signals, reduce signal errors, and improve the response speed and accuracy of the system. Since the axis of the elliptical design is no longer limited to the middle, but offset to the side, this provides more design flexibility for the entire switch structure. The corresponding elliptical through-holes set on the PCB circuit board 60 provide a larger penetration space for the induction coil, allowing the induction coil to move more freely, and under the premise of ensuring performance, more space is left for other components of the switch, such as the LED lighting system, thereby achieving a more compact design layout.

[0043] Furthermore, the design of the elliptical induction coil also enables the electromagnetic induction switch to better adapt to the sensing needs in different directions. The major axis and minor axis of the ellipse can respectively respond to longitudinal and lateral signal changes, thereby improving the overall sensing accuracy. Especially in multi-dimensional sensing scenarios, this design can capture signal changes from different directions and provide more accurate sensing results. The matching of the elliptical through-hole design with the induction coil not only expands the sensing area, but also effectively reduces the possible interference during the induction process. In the traditional circular through-hole design, the induction coil often leads to uneven induction signals due to limited space, while the elliptical through-hole design can ensure uniform transmission of the induction signal, thereby reducing errors and signal attenuation.

[0044] Preferably, when the metal sensing block 30 approaches / moves away from the induction coil through the movable guide core 10 according to the switch triggering action based on the user, the metal sensing block 30 can pass through the through hole of the circuit board when the metal sensing block 30 approaches the maximum stroke state of the induction coil.

[0045] In this embodiment of the present invention, when the user triggers the switch, the movable guide core 10 drives the metal sensor block 30 in longitudinal motion. When the metal sensor block 30 approaches the maximum travel of the induction coil, it can pass through a pre-defined through-hole in the PCB 60, further approaching the induction coil. This design allows the distance between the metal sensor block 30 and the induction coil to vary more significantly within its travel range, generating a more pronounced inductance change signal.

[0046] Furthermore, by allowing the metal sensing block 30 to pass through the through-hole of the PCB circuit board 60 at maximum travel, the relative motion range between the metal sensing block 30 and the induction coil can be significantly increased. This means that the amplitude of the inductance signal change will increase, allowing the entire sensing system to capture more subtle switching operations, thereby improving the system's sensitivity and sensing accuracy. As the metal sensing block 30 approaches or moves away from the induction coil, the through-hole design provides the metal sensing block 30 with sufficient room to move, avoiding signal obstruction or interference caused by space limitations at maximum travel. This design ensures the stability and consistency of the sensing signal throughout the entire travel range, thereby reducing errors and improving system reliability.

[0047] Furthermore, since the metal sensor block 30 can pass through the through-hole of the circuit board at its maximum travel, the circuit board design can be more compact, allowing for more flexible layout of the induction coil and other electronic components. This structural optimization not only saves overall device space but also enhances the functional integration of the electromagnetic induction switch, facilitating the integrated design of multi-functional modules. This design allows the metal sensor block 30 to move more significantly with each user trigger action, providing clearer feedback when operating the switch, enhancing the intuitiveness and operational feel of the user experience.

[0048] Preferably, the movable guide core 10 is facing the switch base 50, and a second annular groove is provided with the axis of the movable guide core 10 as the ring center; the switch base 50 is facing the movable guide core 10, and a third groove with the same size as the second groove is provided with the axis of the switch base 50 as the ring center; a spring 80 is provided between the movable guide core 10 and the switch base 50, and the spring 80 is inserted into the second groove and the third groove at both ends along the axial direction respectively.

[0049] In this embodiment of the present invention, a second annular groove is provided on the side of the movable guide core 10 facing the switch base 50, centered around its axis. Conversely, a third groove is also provided on the side of the switch base 50 facing the movable guide core 10, centered around its axis. This groove is identical in size to the second groove. A spring 80 is axially positioned between the movable guide core 10 and the switch base 50, with its ends inserted into the second and third grooves, respectively. This structural design achieves mechanical coupling between the movable guide core 10 and the switch base 50, and the action of the spring 80 enhances the reset function and operational stability of the switch.

[0050] Furthermore, a spring 80 is disposed between the movable guide core 10 and the switch base 50, with its two ends inserted into the second groove and the third groove, respectively. This design allows the movable guide core 10 to be automatically pushed back to its original position by the elastic force of the spring 80 when the user triggers the switch, restoring its initial state. This reset function ensures the automatic reset of the switch after operation, avoiding the problem of the movable guide core 10 being unable to reset in time due to jamming or lack of elastic elements, greatly improving the operational convenience and reliability of the switch. By arranging the spring 80 axially, the user can feel the flexible rebound force of the spring 80 when pressing the switch, making the operation feel clearer and more elastic. The elastic force of the spring 80 is closely related to the trigger sensitivity of the switch. A moderate design of the spring 80 can ensure that when the user applies a certain amount of pressure, the movable guide core 10 can respond quickly and drive the metal sensor block 30 to trigger a change in the inductance signal. This design not only improves the operating accuracy of the switch, but also improves the user's tactile experience.

[0051] Furthermore, the two ends of the spring 80 are respectively inserted into the second groove and the third groove. This design ensures that the spring 80 remains stable during operation and will not affect the normal operation of the entire structure due to position displacement or loosening. The annular design of the groove further enhances the fixing effect of the spring 80, avoiding the problem of the spring 80 falling off or shifting due to repeated use, thereby improving the durability and long-term reliability of the switch. The annular design of the second groove and the third groove enables the spring 80 to achieve the maximum effect with the minimum space occupied. This compact structural layout not only saves space inside the switch, but also provides more flexibility for the layout of other components. By rationally utilizing limited space, the entire switch structure can be more compact and efficient, further improving the overall mechanical performance and functional integration.

[0052] Preferably, the induction coil at least includes: an upper induction coil 601 and a lower induction coil 602 .

[0053] In one possible implementation, the upper induction coil 601 is disposed on the surface of the PCB circuit board 60 on the side facing the switch base 50; the lower induction coil 602 is disposed on the surface of the other side of the PCB circuit board 60. Of course, both can also be disposed within the PCB circuit board.

[0054] In this embodiment of the present invention, the upper induction coil 601 is located on the surface of the PCB 60 facing the switch base 50, primarily responsible for sensing the approach and separation of the metal sensing block 30. Meanwhile, the lower induction coil 602 is located on the other side of the PCB 60, enabling sensing on both sides of the PCB 60. This double-sided induction structure improves the overall induction efficiency of the electromagnetic induction system.

[0055] Furthermore, by arranging induction coils on the front and back of the PCB circuit board 60, a wider range of inductance perception can be achieved. The upper induction coil 601 is responsible for sensing the movement of the metal sensing block 30, while the lower induction coil 602 provides additional sensing capabilities, increasing the sensitivity of the entire system. The double-sided coil layout can capture more induction signals and reduce the blind spots or incomplete sensing problems that may be caused by single-sided coils. The addition of the lower induction coil 602 allows the inductance change signal to be transmitted simultaneously through both sides, enhancing the stability and accuracy of the signal. The front and lower induction coils 602 can work together to generate more stable and accurate induction signals through their joint action, thereby improving the reliability of the switch in complex application scenarios.

[0056] Furthermore, although the existing four-layer coil solution can provide strong sensing capabilities in application, its complex structure brings about increased costs and manufacturing difficulty. The four-layer coil layout requires more materials and manufacturing processes, which increases the thickness of the PCB board and the overall cost. In addition, the complex multi-layer structure may cause interference in signal transmission, especially in high-density sensing applications, where the accuracy and stability of the signal may be affected. In contrast, this solution only adopts a two-layer coil structure. By arranging the induction coils on the front and back of the PCB circuit board respectively, it can maintain sufficient sensing sensitivity and stability, simplify the manufacturing process, reduce production costs, and at the same time reduce the risk of signal interference, thereby improving the reliability of the overall system.

[0057] Of course, the present application solution is still applicable to the multi-layer coil solution, and the two-layer coil solution is only the preferred solution. The existing four-layer coil solution, or solutions with other numbers of layers, are also applicable to the present utility model solution.

[0058] Preferably, an LED lamp mounting groove for mounting an LED lamp 70 is provided on the PCB circuit board 60 , and the electromagnetic coil metal induction switch further includes an LED lamp 70 mounted in the LED lamp mounting groove.

[0059] In this embodiment of the utility model, a mounting slot is designed on the PCB 60 specifically for accommodating and securing the LED light 70. This allows the LED light 70 to be securely embedded within the PCB and work in conjunction with other electronic components. Mounting the LED light 70 within this slot not only provides visual feedback but also enhances the overall practicality and user experience of the switch. By designing the LED light mounting slot on the PCB 60, the LED light 70 can be tightly integrated with other electronic components. This design reduces the number of external component installation steps, simplifies the overall structure of the switch, and improves the product's integration and compactness. The LED light 70 mounted within the LED light slot provides real-time visual feedback to the user. During switch operation, the lighting or extinguishing of the LED light 70 clearly indicates the switch status. This feature enhances the user's interactive experience, allowing users to more intuitively perceive the switch's operating status, especially in dimly lit environments. The design of the LED light mounting slot fully utilizes the space on the PCB 60, making the switch more compact. This optimized layout leaves more space for the integration of other functional modules, improving the overall layout efficiency and functional expandability of the circuit board.

[0060] Preferably, the induction coil is externally connected to a signal transmission interface through the PCB circuit board 60 for outputting an inductance change signal.

[0061] In an embodiment of the present utility model, after the induction coil senses the movement of the metal sensing block 30, it generates corresponding inductance change signals, and these signals are transmitted to an external control system or processing device through a signal transmission interface. This design ensures reliable communication and data transmission between the induction coil and the external device. By providing an external signal transmission interface on the PCB circuit board 60, the induction coil can quickly and accurately transmit the inductance change signal to the external device. This design ensures stable signal transmission and avoids signal attenuation or distortion problems caused by excessive interference or noise in the circuit board, thereby improving the response speed and accuracy of the entire induction system. The design of the external signal transmission interface facilitates subsequent equipment maintenance and system upgrades. If the signal transmission module needs to be replaced or upgraded, the user can directly connect through the interface without changing the structure of the induction coil itself or redesigning the circuit board, thereby reducing maintenance costs and operational complexity.

[0062] The above describes in detail the optional implementation methods of the embodiment of the present invention in conjunction with the accompanying drawings. However, the embodiment of the present invention is not limited to the specific details in the above implementation methods. Within the technical concept of the embodiment of the present invention, the technical solution of the embodiment of the present invention can be subjected to various simple modifications, and these simple modifications all fall within the protection scope of the embodiment of the present invention.

[0063] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. To avoid unnecessary repetition, the embodiments of the present utility model will not further describe various possible combinations.

[0064] Those skilled in the art will understand that all or part of the steps in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a program, which is stored in a storage medium and includes a number of instructions for causing a single-chip microcomputer, chip or processor to execute all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and other media that can store program code.

[0065] In addition, the various implementations of the embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the embodiments of the present invention, they should also be regarded as the contents disclosed in the embodiments of the present invention.

Claims

1. An electromagnetic coil metal induction switch, characterized in that: The electromagnetic coil metal induction switch comprises: A switch cover (20) and a switch base (50) are movably connected based on a movable guide core (10), and the switch cover (20) can approach or move away from the switch base (50) through the movable guide core (10) based on a switch triggering action of a user; A metal induction block (30) is fixedly extended longitudinally downward on one side of the movable guide core (10) that is eccentric to the axis, and a PCB circuit board (60) provided with an induction coil is fixedly connected to the bottom of the switch base (50) via a switch fixing plate (40); The orthographic projection of the metal sensing block (30) along the axis of the metal sensing block (30) falls within the coil projection range of the induction coil; The metal sensing block (30) approaches or moves away from the induction coil through the movable guide core (10) in response to a switch triggering action by a user, so that an inductance change signal is generated between the metal sensing block (30) and the induction coil.

2. The electromagnetic coil metal induction switch according to claim 1, characterized in that: The switch upper cover (20) has an upper cover through hole in the longitudinal direction, the outer shape of the movable guide core (10) matches the upper cover through hole, and the movable guide core (10) is installed and connected to the switch upper cover (20) based on the upper cover through hole.

3. The electromagnetic coil metal induction switch according to claim 1, characterized in that: A first groove is provided on an eccentric side of the movable guide core (10); the metal sensing block (30) is inserted into the first groove along one axial side for connection; and the other side of the metal sensing block (30) extends out along the axial direction of the movable guide core (10) relative to the bottom plane of the movable guide core (10).

4. The electromagnetic coil metal induction switch according to claim 1, characterized in that: The switch base (50) is provided with a base through-hole capable of allowing the metal sensing block (30) to pass through on one side thereof, and the metal sensing block (30) can move longitudinally based on the base through-hole when approaching or moving away from the induction coil through the movable guide core (10) in response to a switch triggering action by a user.

5. The electromagnetic coil metal induction switch according to claim 1, characterized in that: The induction coil is an elliptical induction coil, and the elliptical range surrounded by the elliptical induction coil of the PCB circuit board (60) is a through hole of the circuit board; The orthographic projection shape of the metal induction block (30) along the axis of the metal induction block (30) is an ellipse in the same direction as the major axis of the elliptical induction coil.

6. The electromagnetic coil metal induction switch according to claim 5, characterized in that: When the metal sensing block (30) approaches or moves away from the induction coil through the movable guide core (10) in response to a switch triggering action based on a user, the metal sensing block (30) can pass through the through hole of the circuit board when the metal sensing block (30) approaches the maximum stroke state of the induction coil.

7. The electromagnetic coil metal induction switch according to claim 1, characterized in that: The movable guide core (10) is located on one side facing the switch base (50), and a second annular groove is provided with the axis of the movable guide core (10) as the center of the ring; The switch base (50) is located on one side facing the movable guide core (10), and a third groove having the same size as the second groove is provided with the axis of the switch base (50) as the center of the ring; A spring (80) is provided between the movable guide core (10) and the switch base (50), and the two ends of the spring (80) along the axial direction are respectively inserted into the second groove and the third groove.

8. The electromagnetic coil metal induction switch according to claim 1, characterized in that: The induction coil at least comprises: An upper induction coil (601) and a lower induction coil (602).

9. The electromagnetic coil metal induction switch according to claim 1, characterized in that: An LED lamp installation groove for installing an LED lamp (70) is provided on the PCB circuit board (60), and the electromagnetic coil metal induction switch further comprises an LED lamp (70) installed in the LED lamp installation groove.

10. The electromagnetic coil metal induction switch according to claim 1, characterized in that: The induction coil is externally connected to a signal transmission interface via a PCB circuit board (60) for outputting an inductance change signal.

Images