Inductance induction microswitch capable of improving induction sensitivity and electronic product

Abstract

The utility model discloses an inductive microswitch capable of improving induction sensitivity and an electronic product, and the microswitch comprises an insulating body which is provided with a movable hole and a first elastic sheet fulcrum; the sensing cone is mounted in the movable hole and is movably arranged up and down; the induction cone comprises a linkage rod part and a metal cone-shaped part, and the metal cone-shaped part is designed to be gradually enlarged from bottom to top; one end of the switching elastic sheet is arranged at the fulcrum of the first elastic sheet, and the other end of the switching elastic sheet acts on the linkage rod part of the sensing cone; a button; when the button is pressed, the switching elastic piece is pressed to enable the other end to deform downwards, and then the sensing cone is driven to move downwards as a whole. A mechanical contact conduction switching mode adopted by a traditional microswitch is broken through, an electric induction mode is ingeniously utilized to complete function switching, the microswitch has the advantages of being fast in response, capable of saving energy, reliable, long in service life and the like, particularly through the design of the induction cone, the metal cone-shaped portion of the induction cone is gradually enlarged from bottom to top, the induction sensitivity of the coil is further improved, and the service life of the coil is prolonged. And the linearity of the induction signal is stronger.

Description

TECHNICAL FIELD

[0001] The utility model relates to the switch field technology especially is a kind of microswitch of inductive response's sensitivity improvement and electronic product. BACKGROUND

[0002] Common microswitch, for example CN 218274362U generally includes button, cover piece, switching spring, plastic base and interval set on the common terminal of plastic base, normally open terminal. Among them: common terminal, normally open terminal is usually made of metal material;Common terminal has common closure end exposed on plastic base and first external pin exposed on the outer surface of plastic base;Normally open terminal has normally open closure end exposed on plastic base and second external pin exposed on the outer surface of plastic base;Switching spring is usually made of metal material;Switching spring one end is provided with contact and extends into the switching gap above normally open closure end, and the other end of switching spring is electrically connected with common closure end.And cover piece is generally installed on plastic base, button hole is provided on the top of cover piece for button installation, the upper end of button is exposed on the top of cover piece, and the lower end of button acts on switching spring.

[0003] When installing and applying, first external pin and second external pin need to be inserted and welded and fixed on PCB, which is troublesome to install and inconvenient to disassemble switch for maintenance and replacement, button is pressed, the contact of switching spring is deformed downward and abuts on normally open closure end, so that normally open terminal and common terminal form contact conduction, and when releasing button, switching spring resets upward, the contact of switching spring is separated from normally open closure end to form disconnection, so that switching switch is controlled.This welding and fixing structure is difficult to achieve high waterproof requirement, and in long-term actual use, waterproof performance is not ideal, mechanical or electrical degradation, etc., which affects the use performance of switch.

[0004] Therefore, a new technical scheme needs to be researched to solve the above problems. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model mainly aims at the defects of prior art, and provides a microswitch of inductive response's sensitivity improvement and electronic product, which breaks the traditional microswitch mechanical contact conduction switching mode, and uses inductive response mode to complete function switching, has the advantages of fast response, energy saving, reliability and long service life, and the like, especially through the design of induction cone, the metal cone-shaped part gradually increases from bottom to top, further improves the inductive sensitivity of coil, and makes the linearity of induction signal stronger.

[0006] To achieve the above object, the utility model adopts the following technical scheme:

[0007] A microswitch of inductive response's sensitivity improvement, comprising:

[0008] An insulating body is provided with a movable hole extending upward and downward, and is further provided with a first elastic sheet supporting point;

[0009] An induction cone is installed in the movable hole and is movable upward and downward relative to the insulating body; the induction cone comprises a linkage rod part and a metal cone part integrally connected to the lower end of the linkage rod part, and the metal cone part is designed to gradually increase from bottom to top;

[0010] A switching elastic sheet is provided at one end of the first elastic sheet supporting point and acts on the linkage rod part of the induction cone at the other end;

[0011] A button is movably arranged on the insulating body to drive the switching elastic sheet; the pressure receiving part of the switching elastic sheet pressed by the button is located between the one end and the other end of the switching elastic sheet;

[0012] When the button is pressed, the other end of the switching elastic sheet is deformed downward, thereby driving the induction cone to move downward as a whole; after the button is released, the other end is reset upward, thereby driving the induction cone to move upward as a whole.

[0013] As a preferred solution, the other end of the switching elastic sheet is punched into a waist-shaped hole, the left and right widths of the waist-shaped hole are greater than the front and back widths, and the top surface of the switching elastic sheet is provided with a front top limiting area and a rear top limiting area corresponding to the front and rear sides of the waist-shaped hole;

[0014] The outer periphery of the linkage rod part is surrounded by a recessed annular limiting groove, and the connection shaft segment is defined on the linkage rod part surrounded by the annular limiting groove, the connection shaft segment is less than or equal to the front and back widths of the waist-shaped hole, and the top wall of the annular limiting groove forms a left top limiting edge and a right top limiting edge located on the left and right sides of the connection shaft segment, respectively;

[0015] After the top of the linkage rod part passes through the waist-shaped hole upward, it is rotated by 90 degrees, so that the left and right top limiting edges are stopped on the front and rear top limiting areas, respectively, the connection shaft segment is located in the waist-shaped hole, and the left and right sides of the connection shaft segment form left and right side movement gaps between the inner wall of the waist-shaped hole, and the bottom surface of the annular limiting groove is stopped on the bottom of the switching elastic sheet.

[0016] As a preferred solution, the horizontal cross section of the linkage rod part is in the shape of a waist, and the left and right widths of the linkage rod part are greater than the front and back widths.

[0017] As a preferred solution, it further comprises:

[0018] The U-shaped blocking strip is assembled on the insulating body after the top of the connecting rod part passes through the waist-shaped hole and rotates 90 degrees, and the inner blocking wall and the outer blocking wall are respectively located on the left and right sides of the connecting rod part after rotating 90 degrees.

[0019] As a preferred solution, the upper end of the inner blocking wall extends upwardly with an extension part, and the top of the extension part serves as a downwardly movable limiting surface of the other end of the switching elastic sheet.

[0020] As a preferred solution, the induction cone is an integral metal piece.

[0021] As a preferred solution, the insulating body comprises a base and a cover; the movable hole and the first elastic sheet fulcrum are arranged on the base, the cover is provided with a relief hole, the cover is assembled on the base to cover the U-shaped blocking strip, the switching elastic sheet, the first elastic sheet fulcrum and the induction cone, and the button passes through the relief hole and protrudes above the cover.

[0022] Among them, the top of the base is provided with a left positioning part, a right positioning part, a front positioning part and a rear positioning part corresponding to the left side, the right side, the front side and the rear side of the movable hole respectively; the inner blocking wall is located between the right side of the right positioning part and the front positioning part, and the right side of the rear positioning part; and the outer blocking wall is located between the left side of the left positioning part and the front positioning part, and the left side of the rear positioning part.

[0023] As a preferred solution, the U-shaped terminal is integrally formed or assembled on the insulating body by injection molding, the U-shaped terminal comprises two elastic sheet supporting parts arranged at a left and right distance and a connecting part connected between the bottoms of the two elastic sheet supporting parts, the first elastic sheet fulcrum is arranged on one elastic sheet supporting part, the second elastic sheet fulcrum is arranged on the other elastic sheet supporting part, and the second elastic sheet fulcrum is located between the first elastic sheet fulcrum and the induction cone.

[0024] The switching elastic sheet is connected with an auxiliary elastic arm, the fixed end of the auxiliary elastic arm is connected to the switching elastic sheet near the other end, the auxiliary elastic arm extends downwardly towards the other second elastic sheet fulcrum, and the free end of the auxiliary elastic arm acts on the second elastic sheet fulcrum.

[0025] An electronic product comprises an electronic product body, a PCB board arranged on the electronic product body, and a switch mounted above the PCB board.

[0026] The switch is the microswitch of the induction induction type with improved induction sensitivity as described in any of the preceding items; the PCB is provided with a clearance hole and a coil arranged around the clearance hole, and the coil is connected with an induction detection driving IC;

[0027] When the button is pressed, the switching sheet is pressed to deform the other end downward, and further drive the induction cone to displace downward as a whole, so that the metal conical part extends out of the lower end of the movable hole and extends into the clearance hole, and the section of the part of the metal conical part passing through the coil changes from small to large.

[0028] As a preferred solution, the electronic product is any one of a mouse, a gamepad, a keyboard and a remote controller.

[0029] The utility model discloses a microswitch of the induction induction type with improved induction sensitivity, which breaks the traditional mechanical contact switching mode of microswitches, uses the induction mode to complete function switching, has the advantages of fast response, energy saving, reliability, long service life, convenient installation, hot plug and the like, and replaces the traditional terminal contact switching microswitch.

[0030] To make the structure features and effects of the utility model clearer, the utility model will be described in detail below in combination with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is the perspective view of the microswitch of the induction induction type with improved induction sensitivity of the embodiment of the utility model;

[0032] Figure 2 is the perspective view of the microswitch of the induction induction type with improved induction sensitivity of the embodiment of the utility model;

[0033] Figure 3 is the rear view of the microswitch of the induction induction type with improved induction sensitivity of the embodiment of the utility model;

[0034] Figure 4 is the exploded view of the microswitch of the induction induction type with improved induction sensitivity of the embodiment of the utility model;

[0035] Figure 5 is the sectional view of the microswitch of the induction induction type with improved induction sensitivity of the embodiment of the utility model;

[0036] Figure 6 is the partial perspective view of the micro switch of the embodiment of the utility model for improving inductive sensitivity (not shown cover body);

[0037] Figure 7 is Figure 6 the partial enlarged view;

[0038] Figure 8 is the first state exploded view of the induction cone and the switching spring of the micro switch of the embodiment of the utility model (nesting state);

[0039] Figure 9 is the second state exploded view of the induction cone and the switching spring of the micro switch of the embodiment of the utility model (nesting 90 degrees state after rotation);

[0040] Figure 10 is the positional relationship of the induction cone and the PCB on the hole and the coil of the micro switch of the embodiment of the utility model;

[0041] Figure 11 is the perspective view of the induction cone of the embodiment of the utility model.

[0042] Figure mark explanation: insulating body 10, movable hole 11, first spring support point 12, left side positioning part 101A, right side positioning part 101B, front side positioning part 101C, rear side positioning part 101D, second spring support point 13, installation buckle arm 14, base 101, cover body 102, induction cone 20, linkage rod part 21, annular limiting groove 211, connecting shaft section 212, left side top limiting edge 213, right side top limiting edge 214, left and right side movable gap D, metal cone-shaped part 22, switching spring 30, waist-shaped hole 31, front side top limiting area 32, rear side top limiting area 33, auxiliary elastic arm 34, button 40, U-shaped baffle 50, inner side baffle 51, outer side baffle 52, connecting wall 53, lengthening part 54, limiting surface 541, U-shaped terminal 60, spring support part 61, connecting part 62, PCB 100, micro switch 200, hole 100A, coil 100B, micro switch 200. DETAILED DESCRIPTION

[0043] Please refer to Figures 1 to 11 It shows the specific structure of the embodiment of the utility model.

[0044] In the description of the utility model, it is necessary to explain, the terms "upper", "lower", "left", "right" and so on indicate the orientation or position relation based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model.

[0045] An inductance induction micro switch for improving inductive sensitivity, comprising:

[0046] An insulating body 10 is provided with an upper and lower extending movable hole 11, and is also provided with a first elastic sheet supporting point 12; the insulating body 10 comprises a base 101 and a cover 102; the movable hole 11 and the first elastic sheet supporting point 12 are both arranged on the base 101; the cover 102 is provided with a relief hole, and the cover 102 is assembled on the base 101, and the cover 102 covers the following U-shaped blocking strip 50, switching elastic sheet 30, first elastic sheet supporting point 12, second elastic sheet supporting point 13 and induction cone 20.

[0047] An induction cone 20 is installed in the movable hole 11 and can be arranged up and down relative to the insulating body 10; the induction cone 20 comprises a linkage rod part 21 and a metal cone part 22 integrally connected to the lower end of the linkage rod part 21, and the metal cone part 22 is designed to gradually increase from bottom to top; the metal cone part 22 is used for adapting with the coil; the induction cone 20 is an integral metal piece, and the induction cone 20 is any one of copper, copper alloy, aluminum and aluminum alloy. Generally, a metal with good conductivity is used to make the induction cone 20, and common metals are silver, copper and aluminum. Silver has high conductivity, copper is second, and compared with silver, copper has the advantages of relatively high conductivity and not too high cost, and copper and copper alloy are preferably used to make the induction cone 20. The conductivity of aluminum and aluminum alloy is lower than that of copper and copper alloy, but the cost is low and the weight is light, and they can also be selected in some applicable scenes.

[0048] A switching elastic sheet 30 is arranged at the first elastic sheet supporting point 12 at one end, and acts on the linkage rod part 21 of the induction cone 20 at the other end; the other end of the switching elastic sheet 30 is punched into a waist-shaped hole 31, the left and right width of the waist-shaped hole 31 is greater than the front and back width, and the top surface of the switching elastic sheet 30 is provided with a front top limiting area 32 and a rear top limiting area 33 corresponding to the front and rear sides of the waist-shaped hole 31.

[0049] A button 40 is arranged on the insulating body 10 in an up and down movable manner to drive the switching elastic sheet 30; the button 40 passes through the relief hole and protrudes above the cover 102; the pressure receiving part of the switching elastic sheet 30 pressed by the button 40 is located between the one end and the other end of the switching elastic sheet 30.

[0050] When the button 40 is pressed, the switching elastic sheet 30 is pressed so that the other end is deformed downward, and the induction cone 20 is driven to move downward as a whole. When the button 40 is released, the other end is reset upward, and the induction cone 20 is driven to move upward as a whole.

[0051] In the embodiment, the horizontal section of the linkage rod part 21 of the induction cone 20 is in a waist shape, and the left and right widths of the linkage rod part 21 are greater than the front and back widths. The outer periphery of the linkage rod part 21 is surrounded by a ring-shaped limiting groove 211, and the linkage rod part 21 is defined as a connecting shaft segment 212 at the part surrounded by the ring-shaped limiting groove 211. The connecting shaft segment 212 is less than or equal to the front and back widths of the waist-shaped hole 31, and the top wall of the ring-shaped limiting groove 211 is formed with a left top limiting edge 213 and a right top limiting edge 214 located at the left and right sides of the connecting shaft segment 212, respectively. After the top of the linkage rod part 21 passes through the waist-shaped hole 31 upward, the linkage rod part 21 is rotated so that the left top limiting edge 213 and the right top limiting edge 214 are stopped on the front side top limiting area 32 and the back side top limiting area 33 of the switching elastic sheet 30, respectively, the connecting shaft segment 212 is located in the waist-shaped hole 31, and the left and right sides of the connecting shaft segment 212 and the inner wall of the waist-shaped hole 31 form left and right side movement gaps D, and the bottom surface of the ring-shaped limiting groove 211 is stopped on the bottom of the switching elastic sheet 30. Therefore, after the switching elastic sheet 30 is sleeved on the linkage rod part 21 of the induction cone 20, the induction cone 20 is rotated horizontally, so that the induction cone 20 and the switching elastic sheet 30 do not separate, and when the other end of the switching elastic sheet 30 is pressed downward, it will be pulled left and right in addition to moving up and down. Through the design of the waist-shaped hole 31, the phenomenon of the connecting shaft segment 212 being blocked is avoided, and the stable and reliable quality of the switch is ensured.

[0052] In order to prevent the induction cone 20 from rotating, the micro switch 200 further comprises:

[0053] U-shaped blocking strip 50, which has an integral connection of inner side blocking wall 51, outer side blocking wall 52, and connecting wall 53, both of which are arranged with left and right spacing, the connecting wall 53 is connected between one end of the inner side blocking wall 51 and the outer side blocking wall 52, and the other end is open, thus forming a U shape; after the top of the linkage rod part 21 passes through the waist-shaped hole 31 upward and rotates, the U-shaped blocking strip 50 is assembled on the insulating body 10, and the inner side blocking wall 51 and the outer side blocking wall 52 are respectively limited to the left and right sides (equivalent to the front and rear sides of the linkage rod part 21 before rotation) of the linkage rod part 21 after rotation, so that the U-shaped blocking strip 50 can be used to block the linkage rod part 21, preventing the linkage rod part 21 from rotating, that is, preventing the induction cone 20 from rotating. Further, the upper end of the inner side blocking wall 51 extends upward with an extension 54, the top of the extension 54 serves as another end of the switching elastic sheet 30 downward movable limiting surface 541, in the unpressed state, the top of the extension 54 maintains a vertical spacing with the other end of the switching elastic sheet 30, and in the pressed state, the other end of the switching elastic sheet 30 is limited to the downward position against the limiting surface 541.

[0054] In order to facilitate the assembly and positioning of the U-shaped blocking strip 50, and to ensure the feasibility of guiding the upward and downward movement of the induction cone 20, in this embodiment, the top of the base 101 corresponds to the left side, right side, front side, and rear side of the movable hole 11, respectively, and is provided with a left positioning portion 101A, a right positioning portion 101B, a front positioning portion 101C, and a rear positioning portion 101D; the inner side blocking wall 51 is located between the right side surface of the right positioning portion 101B and the front positioning portion 101C, and the rear positioning portion 101D, the outer side blocking wall 52 is located between the left side surface of the left positioning portion 101A and the front positioning portion 101C, and the rear positioning portion 101D, and the left and right sections of the waist-shaped hole 31 extend to the area between the right side surface of the right positioning portion 101B and the front positioning portion 101C, and the rear positioning portion 101D, and the area between the left side surface of the left positioning portion 101A and the front positioning portion 101C, and the rear positioning portion 101D, that is, the left and right sections of the waist-shaped hole 31 extend below the covered area of the inner side blocking wall 51 and the outer side blocking wall 52, so that the left and right sides of the linkage rod part 21 after rotation are limited by the U-shaped blocking strip 50.

[0055] Generally, a second elastic sheet support point 13 will also be provided on the insulating body 10 to provide support for the auxiliary elastic arm 34 of the switching elastic sheet 30, specifically:

[0056] The U-shaped terminal 60 is fixed or assembled on the insulating body 10 by injection molding, the U-shaped terminal 60 comprises two elastic sheet supporting portions 61 arranged at a left-right interval and a connecting portion 62 connected between the bottoms of the two elastic sheet supporting portions 61, the first elastic sheet supporting point 12 is arranged on one elastic sheet supporting portion 61, the second elastic sheet supporting point 13 is arranged on the other elastic sheet supporting portion 61, and the second elastic sheet supporting point 13 is located between the first elastic sheet supporting point 12 and the induction cone 20, that is, the three are arranged at a left-right interval; the auxiliary elastic arm 34 is connected to the switching elastic sheet 30, the fixed end of the auxiliary elastic arm 34 is connected to the switching elastic sheet 30 near the other end, the auxiliary elastic arm 34 extends downward towards the other second elastic sheet supporting point 13, and the free end of the auxiliary elastic arm 34 acts on the second elastic sheet supporting point 13.

[0057] Next, an electronic product is introduced, which can be widely referred to as an industrial input device and hardware in consumer electronics products during actual production and manufacturing, such as a switch structure acting on products such as a mouse, a gamepad, a keyboard, a remote controller, and the like for computer and mobile phone peripherals. The electronic product comprises an electronic product main body, the electronic product main body is provided with a PCB 100 and a switch mounted above the PCB 100, and the number of switches is not limited and can be one or more. The switch is the microswitch 200 of the inductance induction type described above for improving the induction sensitivity; the PCB 100 is provided with a clearance hole 100A and a coil 100B arranged around the clearance hole 100A, and the coil 100B is connected with an inductance detection driving IC; generally, the inductance detection driving IC is arranged on the PCB 100. During installation, the mounting positioning column or / and the mounting buckle arm 14 at the bottom of the insulating body 10 can be inserted and positioned with the corresponding holes on the PCB 100 (or with the corresponding holes pre-set on other parts of the electronic product), which facilitates installation and enables hot plug, after installation, the bottom end of the insulating body 10 can be attached to the top end surface of the PCB 100 or positioned with other pre-set reference surfaces on the electronic product, and the lower end opening of the movable hole 11 is directly opposite the clearance hole 100A. The area where the coil 100B is arranged can be within the downward projection area of the insulating body 10 or can extend beyond the downward projection area of the insulating body 10.

[0058] When the button 40 is pressed, the switching elastic sheet 30 is pressed to deform the other end downward, thereby driving the induction cone 20 to displace downward as a whole, so that the metal conical portion 22 extends out of the lower end of the movable hole 11 and extends into the clearance hole 100A, the cross section of the part where the metal conical portion 22 passes through the coil 100B changes from small to large, further improving the induction sensitivity of the coil 100B, and making the linearity of the induction signal stronger.

[0059] In this embodiment, the coil 100B is a spiral winding arranged on the top surface of the PCB 100, and the spiral direction is taken as the rotation center of the vertical axis, and the coil 100B is arranged in a gradually increasing spiral from the inside to the outside. Therefore, the coil 100B is usually arranged horizontally in a flat shape, and the top surface of the coil 100B is flush with or slightly higher than the top surface of the PCB 100. If it is arranged to be slightly lower than the top surface of the PCB 100, it is also acceptable. The inductance detection driving IC is a known IC for detecting inductance or inductance change, such as the IQS, IQS, etc. chips of the Azoteq brand. The inductance detection driving IC is connected to the coil 100B. When the button 40 is pressed, the induction cone 20 is displaced downward together with the button 40 relative to the insulating body 10 to approach the coil 100B, and the inductance detection driving IC senses the inductance change one of the coil 100B, thereby completing the switching of functions one to two of the switch (also referred to as the switching of the switch). After releasing the button 40, the induction cone 20 is automatically reset upward together with the button 40 under the action of the reset member, so that the induction cone 20 is away from the coil 100B, and the inductance detection driving IC senses the inductance change two of the coil 100B (also referred to as the switching of the switch). Thus, the switching of functions two to one of the switch is completed. Functions one and two refer to two different states, and the switch is used to switch between the two states, for example: function one is off, and function two is on.

[0060] The inductance detection driving IC has a CRx pin and a CTx pin, and the CRx pin and the CTx pin are respectively connected to two ends of the coil 100B. Usually, a resistor R is also connected in series between the CTx pin and one end of the coil 100B, thereby forming a self-induction mode measurement circuit. A pair of CRx pins and CTx pins are used to complete the measurement of inductance change. The EM block around the coil 100B is generated by the excitation signal at the CTx pin, and the inductance measurement of the coil 100B is performed on the CRx pin.

[0061] When the induction cone 20 approaches the coil 100B, the EM field around the coil 100B induces eddy current in the induction cone 20, the direction of the eddy current is opposite to the EM field, which reduces the total inductance of the coil 100B, the inductance detection driving IC measures the inductance change, calculates the distance between the induction cone 20 and the PCB 100 (or the coil 100B), therefore, when applied to the actual product, the trigger point (trigger stroke) can be freely adjusted, because the inductance change sensed by the inductance detection driving IC can be set to calculate the corresponding distance, which is the difference between the original position height of the induction cone 20 (referring to the position height of the induction cone 20 relative to the PCB 100 or the coil 100B) and the pressing stroke (also referred to as the trigger stroke). In this way, by setting the inductance or inductance change, the trigger stroke of the button 40 can be adjusted accordingly. For users, the trigger stroke of the button can be customized on the electronic product, especially for different applications with different button strokes. That is, the trigger stroke of the button 40 is adjusted by setting the inductance or inductance change of the coil 100B sensed by the inductance detection driving IC.

[0062] The design focus of the utility model lies in, it breaks traditional microswitch to adopt mechanical contact switch mode, cleverly use inductive mode to complete function switch, have response fast, energy saving, reliable, long service life, convenient installation and hot plug and many advantages, it saves terminal welding process, also avoids inconvenient disassembly caused by welding fixation, and, it is not mechanical or electrical degradation and easy to waterproof, simple structure, easy production, suitable for popularization and application to replace traditional terminal contact switch microswitch. And, the microswitch 200 that improves inductive sensitivity of inductive microswitch 200 is applied to electronic product, can completely customize button trigger stroke, for manufacturers, mass production of a kind of product / switch, easy to control and set diversified trigger stroke parameters, satisfy individualized use demand, especially through the design of induction cone 20, the metal cone-shaped part 22 of its gradually increases from bottom to top, further improves the sensitivity of the coil 100B, makes the linearity of induction signal stronger.

[0063] The above is only a preferred embodiment of the utility model, and does not limit the technical scope of the utility model, so any slight modification, equivalent change and modification of the above embodiment according to the technical essence of the utility model still belongs to the technical scope of the utility model.

Claims

1. An inductively sensitive microswitch for increasing the sensitivity of inductive sensing, characterized in that The utility model relates to a switch, including: An insulating body is provided with a movable hole extending up and down, and is also provided with a first elastic sheet support point; An induction cone is installed in the movable hole and can move up and down relative to the insulating body; the induction cone includes a linkage rod part and a metal cone part integrally connected to the lower end of the linkage rod part, and the metal cone part is designed to gradually increase from bottom to top; A switching elastic sheet is provided at one end of the first elastic sheet support point and acts on the linkage rod part of the induction cone; A button is movably arranged on the insulating body to drive the switching elastic sheet; the pressure receiving part of the switching elastic sheet pressed by the button is located between the one end and the other end of the switching elastic sheet; When the button is pressed, the switching elastic sheet is pressed to make the other end deform downward, thereby driving the whole induction cone to move downward; after the button is released, the other end is reset upward, thereby driving the whole induction cone to move upward.

2. The inductively sensitive microswitch of claim 1, wherein, The other end of the switching elastic sheet is punched into a waist-shaped hole, the left and right widths of the waist-shaped hole are greater than the front and back widths, and the top surface of the switching elastic sheet is provided with a front top limiting area and a rear top limiting area corresponding to the front and rear sides of the waist-shaped hole; The outer periphery of the linkage rod part is surrounded by a recessed annular limiting groove, the connection shaft segment is defined on the linkage rod part surrounded by the annular limiting groove, the left and right widths of the connection shaft segment are less than or equal to the front and back widths of the waist-shaped hole, and the top wall of the annular limiting groove is formed with a left top limiting edge and a right top limiting edge located on the left and right sides of the connection shaft segment, respectively; After the top of the linkage rod part passes through the waist-shaped hole upward and is rotated by 90 degrees, the left and right top limiting edges are stopped on the front and rear top limiting areas, respectively, the connection shaft segment is located in the waist-shaped hole, left and right side gaps are formed between the left and right sides of the connection shaft segment and the inner wall of the waist-shaped hole, and the bottom surface of the annular limiting groove is stopped on the bottom of the switching elastic sheet.

3. The inductively sensitive microswitch of claim 2, wherein, The horizontal cross section of the linkage rod part is in a waist shape, and the left and right widths of the linkage rod part are greater than the front and back widths.

4. The inductively sensitive microswitch of claim 2, wherein, Further including: A U-shaped blocking strip has an integrally connected inner blocking wall, outer blocking wall and connecting wall, the inner blocking wall and the outer blocking wall are arranged with a left and right spacing, and the connecting wall is connected between one end of the inner blocking wall and the outer blocking wall; after the top of the linkage rod part passes through the waist-shaped hole upward and is rotated by 90 degrees, the U-shaped blocking strip is assembled on the insulating body, and the inner blocking wall and the outer blocking wall are respectively limited on the left and right sides of the linkage rod part after being rotated by 90 degrees.

5. The inductively sensitive microswitch of claim 4, wherein, The upper end of the inner blocking wall extends upwardly with an elongated part, and the top of the elongated part serves as a limiting surface for the downward movement of the other end of the switching elastic sheet.

6. The inductively sensitive microswitch of claim 1, wherein, The induction cone is an integral metal part.

7. The inductively sensitive microswitch of claim 4, wherein, The insulating body comprises a base and a cover; the movable hole and the first elastic sheet supporting point are arranged on the base, the cover is provided with an avoiding hole, and the cover is assembled on the base to cover the U-shaped blocking strip, the switching elastic sheet, the first elastic sheet supporting point and the induction cone; the button passes through the avoiding hole and protrudes above the cover; The top of the base is provided with a left side positioning part, a right side positioning part, a front side positioning part and a rear side positioning part corresponding to the left side, the right side, the front side and the rear side of the movable hole respectively; the inner side blocking wall is located between the right side of the right side positioning part and the front side positioning part and the rear side positioning part, and the outer side blocking wall is located between the left side of the left side positioning part and the front side positioning part and the rear side positioning part.

8. The inductively sensitive microswitch of claim 1, wherein, The U-shaped terminal is fixed or assembled on the insulating body by injection molding, the U-shaped terminal comprises two elastic sheet supporting parts arranged at a left-right interval and a connecting part connected between the bottoms of the two elastic sheet supporting parts, the first elastic sheet supporting point is arranged on one elastic sheet supporting part, and the second elastic sheet supporting point is arranged on the other elastic sheet supporting part, and the second elastic sheet supporting point is located between the first elastic sheet supporting point and the induction cone. The switching elastic sheet is connected with an auxiliary elastic arm, the fixed end of the auxiliary elastic arm is connected to the switching elastic sheet near the other end, the auxiliary elastic arm extends downward towards the other second elastic sheet supporting point, and the free end of the auxiliary elastic arm acts on the second elastic sheet supporting point. 9.An electronic product comprising an electronic product body, the electronic product body being provided with a PCB and a switch mounted above the PCB, characterized in that, The switch is the inductive sensing micro switch with improved inductive sensitivity according to any one of claims 1 to 8; the PCB is provided with a clearance hole and a coil arranged around the clearance hole, and the coil is connected with an inductance detection driving IC; When the button is pressed, the switching elastic sheet is pressed to make the other end deform downward, thereby driving the induction cone to displace downward as a whole, so that the metal conical part protrudes from the lower end of the movable hole and extends into the clearance hole, and the part of the metal conical part passing through the coil changes from small to large in cross section.

10. The electronic product of claim 9, wherein, The electronic product is any one of a mouse, a gamepad, a keyboard and a remote controller.

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