Magnetic induction switch

Abstract

The utility model discloses a magnetic induction switch. The switch comprises a base, a spring piece installed on the base, a magnetic piece installed at the movable end of the spring piece, and a circuit board installed at the bottom of the base. Wherein the circuit board is provided with a magnetic induction element matched with the moving track of the magnetic piece, the base is further provided with a plug pin used for plugging and fixing, the circuit board is connected with a plurality of extending pins, and power supply and signal transmission of the circuit board are achieved through the pins. According to the magnetic induction switch, through modular design and an integrated structure, the assembling efficiency, universality and reliability of the magnetic induction switch can be remarkably improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic components, in particular to a magnetic sensing switch, especially an integrated magnetic sensing switch integrating a magnetic sensing element and a circuit board. The technical solution is mainly applied to electronic devices requiring magnetic sensing function, such as magnetic sensing microswitches, position detection devices, automation control systems, etc., aiming to solve the problems of existing split magnetic sensing switches, such as complex design, poor universality, high assembly difficulty and insufficient stability, etc. BACKGROUND

[0002] As a key component widely used in electronic devices, magnetic sensing switches, especially magnetic sensing microswitches, play an important role.

[0003] In the prior art, magnetic sensing microswitches usually adopt a split structure design, i.e. the resettable magnetic block and the magnetic sensing element for sensing the magnetic field strength are arranged separately, and the magnetic sensing element and its carrying circuit are integrated on an external PCB board. Although this design can realize basic magnetic sensing function, it has significant technical defects in actual application. First, due to the differences in layout, circuit design and functional requirements of PCB boards for different devices, each device needs to be customized with an adaptive PCB board, which not only significantly increases the design and manufacturing cost, but also prolongs the product development cycle and reduces the production efficiency. Second, the split design cannot realize modular plug-in replacement, which limits the universality of magnetic sensing microswitchs, especially in scenarios requiring quick replacement or upgrade, the existing design is difficult to meet the needs of flexible application. In addition, the external PCB board needs to be accurately aligned during assembly, which increases the assembly difficulty and is easily disturbed by the external environment, affecting the stability and reliability of the switch. Therefore, a new magnetic sensing switch design is needed to solve the above technical problems and improve the universality, stability and production efficiency of the product. CONTENT OF THE INVENTION

[0004] The purpose of the present application is to at least overcome one deficiency of the prior art, and to provide a magnetic sensing switch which can significantly improve the assembly efficiency, universality and reliability of the magnetic sensing switch through modular design and integrated structure.

[0005] To achieve the above-mentioned purpose, the present application discloses a magnetic sensing switch, which comprises a base, a spring sheet mounted on the base, a magnetic element mounted on the movable end of the spring sheet, and a circuit board mounted at the bottom of the base.

[0006] Among them, the circuit board is provided with a magnetic sensing element adapted to the activity track of the magnetic element, and the base is also provided with a plug-in fixed pin, the circuit board is connected with the extended multiple pins, and the power supply and signal transmission of the circuit board are realized through the pins.

[0007] The spring sheet cooperates with an execution part, which drives the spring sheet to realize the downward movement of the movable end.

[0008] In addition, the base cooperates with the cover to form a cavity, which fixes the spring sheet and the magnetic member in the cavity, and the execution part partially extends out of the cavity for operation.

[0009] As an optional technical solution, the circuit board can also be connected with the pin, which is part of the electrical transmission or signal transmission.

[0010] Further, the base is made of high-strength insulating material to ensure its durability and electrical isolation performance in complex environments. The base is provided with a mounting seat for mounting the spring sheet, thereby simplifying the assembly process and improving the assembly precision.

[0011] Specifically, one end of the spring sheet is fixed by cooperating with the mounting seat, so that the end of the spring sheet is fixed on the base, and the other end of the spring sheet is a free end, on which the magnetic member is mounted. The magnetic member is made of high magnetic permeability material to ensure the magnetic field sensing sensitivity between the magnetic member and the magnetic sensing element.

[0012] Further, the shape and size of the magnetic member can be optimized according to the specific application scenario, such as adopting a cylindrical or rectangular structure to adapt to different magnetic field distribution requirements.

[0013] Specifically, the circuit board adopts a multi-layer PCB design, on which the magnetic sensing element, signal processing circuit, and filtering and protection circuit are integrated. The arrangement position of the magnetic sensing element corresponds to the movement trajectory of the magnetic member, so as to ensure that the magnetic field change can be accurately detected and the corresponding electrical signal can be output during the movement of the magnetic member.

[0014] Further, the connection between the circuit board and the pin adopts welding or plug-in mode to realize quick installation and replacement.

[0015] Further, the cover is made of lightweight high-strength engineering plastic or metal material, and the cover is provided with a guide groove and a limiting structure inside for guiding the movement trajectory of the execution part and limiting the movement range, so as to avoid mechanical damage caused by excessive movement. Specifically, the end of the execution part is provided with an operation button or a lever, so that the user can drive the movement of the spring sheet by manual or mechanical means.

[0016] The technical scheme integrates the magnetic induction element on the circuit board, and designs the circuit board and the base in an integrated manner, which significantly simplifies the assembly process and reduces the manufacturing cost. At the same time, the plug-in pin design enables the magnetic induction switch to realize modular replacement, improving the versatility and flexibility of the product. In addition, the design of the cavity structure effectively protects the internal components and reduces the interference of the external environment on the switch performance, further improving the stability and reliability of the switch. The present application not only solves the technical problems existing in the prior art, but also provides a more efficient and reliable solution for the wide application of magnetic induction switches.

[0017] The above-listed benefits are not exhaustive of all advantages. Other potential benefits and detailed technical implementations will be further disclosed in the embodiments or other description sections of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0018] Aspects of the present disclosure will become more fully understood from the detailed description and embodiments provided hereinafter and the accompanying drawings, in which the structures of the positions, sizes, and ranges shown in the drawings are sometimes not actual positions, sizes, and ranges. In the drawings:

[0019] Figure 1 is a structural schematic diagram of an embodiment of the present application.

[0020] Figure 2 is an exploded view of an embodiment of the present application.

[0021] Figure 3 is an exploded view of an embodiment of the present application from another perspective.

[0022] The numbers in the figure are respectively: 1 - base, 2 - spring sheet, 3 - magnetic element, 4 - circuit board, 5 - execution part, 6 - cover, 7 - pin, 8 - pin, 9 - magnetic induction component. DETAILED DESCRIPTION

[0023] The present disclosure will be described below with reference to the accompanying drawings, which show several embodiments of the present disclosure. It should be understood that the present disclosure can be presented in many different ways, and is not limited to the embodiments described below; in fact, the embodiments described below are intended to make the disclosure of the present disclosure more complete, and to fully inform those skilled in the art of the scope of protection of the present disclosure. It should also be understood that the embodiments disclosed herein can be combined in various ways to provide more additional embodiments.

[0024] It should be understood that in all the drawings, the same reference numerals represent the same elements. In the drawings, the sizes of some features can be distorted for the sake of clarity.

[0025] It is to be understood that the phraseology and terminology used herein is for the purpose of description and not of limitation. The detailed description of the drawings uses only the best modes presently known to the inventors of making and using the embodiments. Those skilled in the art will appreciate the scope of the embodiments and embodiments disclosed herein is limited only by the claims.

[0026] As used in the description of the embodiments and the appended claims, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. As used herein, the language "includes" and / or "comprising" shall not be construed as limiting to the specific components or steps enumerated thereafter and shall include some or all of the features, elements, components, steps, and / or blocks disclosed herein. Embodiments

[0027] For better understanding of the structure and function of the embodiments, the detailed description is made with reference to the accompanying drawings. Figure 1 , the accompanying Figure 2 , and the accompanying Figure 3 .

[0028] As shown in the accompanying Figure 1 , the main structure of the embodiments includes a base 1 and a cover 6. The base 1 cooperates with the cover 6 to form a cavity, and the spring sheet 2 and the magnetic member 3 are fixed in the cavity. The execution part 5 partially extends out of the cavity for operation. The base 1 is made of high-strength insulating material, such as polyamide PA or glass fiber reinforced plastic FR-4, to ensure its durability and electrical isolation performance in complex environments.

[0029] The cover 6 is made of lightweight high-strength engineering plastic, such as aluminum alloy or polycarbonate PC, and has a guide groove and a limiting structure inside for guiding the movement trajectory of the execution part 5 and limiting its movement range.

[0030] The detailed structure of the embodiments can be more clearly understood in combination with the accompanying Figure 2 . The detailed structure of the base 1, the cover 6, the spring sheet 2, the magnetic member 3, the pin 7, the lead 8, the circuit board 4, and the magnetic induction component 9 is shown in the accompanying Figure 2 .

[0031] One end of the spring sheet 2 is fixed by cooperating with the mounting seat on the base 1, so that the end of the spring sheet 2 is firmly fixed on the base 1. The other end of the spring sheet 2 is a free end, and the magnetic member 3 is installed on the free end. The magnetic member 3 is made of high magnetic permeability material, such as neodymium iron boron NdFeB or ferrite, to ensure the magnetic field induction sensitivity between the magnetic member 3 and the magnetic induction component 9.

[0032] The base 1 is provided with a circuit board 4 at the bottom, which is designed as a multi-layer PCB and integrated with a magnetic sensing component 9, a signal processing circuit, and a filtering and protection circuit. The magnetic sensing component 9, such as a Hall Sensor or a Magneto-Resistive Sensor, is arranged at a position corresponding to the moving track of the magnetic element 3 to ensure that the magnetic field change can be accurately detected during the movement of the magnetic element 3 and the corresponding electrical signal can be output.

[0033] The circuit board 4 is connected with a plurality of extended pins 8, which are treated by gold plating or tin plating process to improve the conductivity and corrosion resistance. The base 1 is also provided with a plug-in pin 7 for fixed insertion and extraction. The connection between the pin 7 and the circuit board 4 can be achieved by welding or plugging to realize quick installation and replacement. The pin 7, as part of the electrical or signal transmission, can be quickly connected with external devices to improve the modular design level of the switch.

[0034] The connection between the pin 7 and the circuit board 4, as well as the arrangement of the pins 8 on the circuit board 4, are shown in detail in the accompanying drawings. Figure 3 The connection between the pin 7 and the circuit board 4 can be achieved by welding or plugging to realize quick installation and replacement. The pin 7, as part of the electrical or signal transmission, can be quickly connected with external devices to improve the modular design level of the switch.

[0035] The working principle and structural design of the embodiment are shown in detail in combination with the accompanying drawings. Figure 1 , the accompanying drawings Figure 2 , and the accompanying drawings Figure 3 In specific applications, such as in keyboards, remote controls, and mouse devices, the user presses or pulls the operation button or lever of the execution part 5 to drive the free end of the spring sheet 2 to move downward, which drives the magnetic element 3 to approach or move away from the magnetic sensing component 9 on the circuit board 4. After the magnetic sensing component 9 detects the change in the magnetic field, it outputs the corresponding electrical signal, which is filtered and amplified by the signal processing circuit on the circuit board 4, and finally transmitted to the external device through the pins 8 or the plug-in pin 7 to realize the control function of the switch. Since the magnetic sensing switch is designed as an integrated unit, the assembly process is simplified, and the plug-in pin 7 design allows the switch to be quickly replaced, which is suitable for scenarios that require frequent maintenance or upgrading.

[0036] The magnetic sensing switch of the embodiment simplifies the assembly process, reduces the manufacturing cost, and improves the versatility and flexibility of the switch through integrated design and modular plug-in structure. In addition, the design of the cavity structure effectively protects the internal components and reduces the interference of the external environment on the performance of the switch, further improving the stability and reliability of the switch. The present application not only solves the technical problems existing in the prior art, but also provides a more efficient and reliable solution for the wide application of magnetic sensing switches.

[0037] It should be noted that the parts not disclosed in detail in the embodiment, such as the specific wiring design of the circuit board 4, the specific model selection of the magnetic sensing component 9, and the material heat treatment process of the spring sheet 2, all belong to the known technology or prior art of those skilled in the art, and do not need to be described in detail in the embodiment. Those skilled in the art can reasonably select and optimize the design of the above-mentioned undisclosed parts according to the actual application requirements and the existing technical knowledge to realize the technical scheme of the present application.

[0038] Although exemplary embodiments of the present disclosure have been described, those skilled in the art will understand that various changes and modifications can be made to the exemplary embodiments of the present disclosure without departing from the spirit and scope of the present disclosure in essence. Therefore, all changes and modifications are included in the protection scope of the present disclosure defined by the claims. The present disclosure is defined by the appended claims, and the equivalents of these claims are also included.

Claims

1. A magnetic sensing switch, characterized in that The base, the spring sheet installed on the base, the magnetic piece installed on the movable end of the spring sheet, and the circuit board installed on the bottom of the base; The circuit board is provided with a magnetic induction element matching the moving track of the magnetic piece, and the base is further provided with a plug pin for fixing insertion, the circuit board is connected with the extended multiple pins, and the power supply and signal transmission of the circuit board are realized through the pins; The spring sheet cooperates with an execution part, and the down movement of the movable end is realized by the driving of the execution part. The base cooperates with the cover to form a cavity, the spring sheet and the magnetic piece are fixed in the cavity, and the execution part partially extends out of the cavity for operation.

2. The magnetic sensing switch of claim 1, wherein, The circuit board is further connected with the plug pin, and the plug pin is part of the electric transmission or signal transmission.

3. The magnetic sensing switch of claim 1, wherein, The base is provided with a mounting seat for installing the spring sheet.

4. The magnetic sensing switch of claim 1, wherein, One end of the spring sheet is fixed by cooperating with the mounting seat, so that the end of the spring sheet is fixed on the base, and the other end of the spring sheet is a free end, and the magnetic piece is installed on the free end.

5. The magnetic sensing switch of claim 1, wherein, The circuit board adopts a multi-layer PCB design, and is integrated with a magnetic induction component, a signal processing circuit, and a filtering and protection circuit, and the arrangement position of the magnetic induction component corresponds to the moving track of the magnetic piece.

6. The magnetic sensing switch of claim 1, wherein, The cover is internally provided with a guide groove and a limiting structure for guiding the moving track of the execution part and limiting the movement range thereof.

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