A low stroke switch panel

Abstract

A kind of small stroke switch panel, including base, upper cover and for triggering switch opening and closing push mechanism and the trigger mechanism of control switch opening and closing, the trigger mechanism includes magnetic trigger part and magnetic conduction part, the outer periphery of the magnetic trigger part is equipped with driving seat, the driving seat is equipped with two tracks of central symmetry, the track is arranged from high to low and annular closure, the magnetic trigger part moves axially along track from high to low in the process of upper cover push trigger switch, in turn, through magnetic connection trigger magnetic conduction part conduction switch.

Description

Technical Field

[0001] This invention relates to a short-stroke switch panel, belonging to the field of switches. Background Technology

[0002] With the development of smart homes, users have placed higher demands on the user experience of contact-based control components such as wall switches and control panels. Traditional mechanical switches typically have a long travel distance, which not only makes them noisy during operation but also easily leads to wear and tear on internal components due to long-term mechanical friction, affecting their lifespan. In pursuit of a better integrated design that combines tactile feedback and aesthetics, short-travel switch panels are gradually becoming the mainstream demand in the market. These switches require reliable circuit opening and closing within an extremely short pressing distance.

[0003] However, existing two-state reset or locking short-stroke switches often rely on complex micro-motion mechanical structures or multi-link slider combinations. For example, patent CN108597935B discloses a short-stroke switch panel, including: a faceplate assembly and a switch module; a keypad, one end of which is pivotally connected to the faceplate assembly, and the other end of which has a protrusion on its end face facing the faceplate assembly; a transmission arm, one end of which is pivotally connected to the faceplate assembly, and the transmission arm is located between the keypad and the faceplate assembly; the protrusion can abut against the transmission arm and drive the other end of the transmission arm to swing towards the faceplate assembly to trigger the switch module. This invention utilizes the protrusion on the keypad to link the free end of the transmission arm to swing towards the faceplate assembly to trigger the switch module. With a short keypad stroke, the effective stroke is increased through lever transmission, thereby achieving a thin panel switch structure. Furthermore, the trigger position of the switch module can be changed through the transmission arm. Under long-term frequent pressing operations, mechanical parts are prone to jamming, poor contact, or loss of elasticity due to metal fatigue, plastic deformation, and frictional wear.

[0004] Furthermore, existing flexible contact switches are prone to arcing or signal jitter due to vibration at the moment of contact disconnection under small travel, which cannot guarantee the accuracy and stability of signal transmission. Therefore, there is an urgent need to improve the existing technology to solve the problems of easy wear, unstable signal, and short lifespan caused by the reliance on purely mechanical contact in existing small travel switches. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings and deficiencies of the existing technology and to provide a small travel switch panel.

[0006] A small travel switch panel includes a base, a top cover, a pressing mechanism for triggering the switch to open and close, and a triggering mechanism for controlling the switch to open and close. The triggering mechanism includes a magnetic triggering part and a magnetic conducting part. The magnetic triggering part is provided with a driving seat on its outer periphery. The driving seat is provided with two centrally symmetrical tracks, which are arranged from high to low and are closed in a ring. When the top cover is pressed to trigger the switch, the magnetic triggering part moves axially from high to low along the tracks, thereby triggering the magnetic conducting part to conduct the switch through magnetic connection.

[0007] Furthermore, a limiting groove is formed at the connection of the two tracks. After the magnetic trigger part is in place, it engages with the limiting groove to form a limiting connection, so that the magnetic trigger part is in the conducting position of the magnetic conduction part.

[0008] Furthermore, the magnetic triggering part is a permanent magnet, and the magnetic conducting part is a reed switch. The permanent magnet moves above the reed switch via a track, thereby triggering the reed switch to conduct.

[0009] Furthermore, the magnetic triggering part has a magnetic sheet at one end for triggering the reed switch. When the triggering switch is pressed on the upper cover, the magnetic sheet moves together with the magnetic triggering part to the conducting position of the magnetic conduction part.

[0010] Furthermore, the top cover is provided with a fixed shaft, the magnetic trigger part is rotatably mounted on the fixed shaft, and a torsion spring is sleeved on the fixed shaft. One end of the torsion spring is fixed to the top cover, and the other end is fixedly mounted on the magnetic trigger part.

[0011] Furthermore, the actuating mechanism includes a fixed base, an elastic element, and a connecting base. The fixed base is fixedly mounted on the base, and the connecting base is fixedly mounted on the top cover. One end of the elastic element is fixedly mounted on the base via the fixed base, and the other end is rotatably mounted on the connecting base. A gap is formed between the base and the top cover to allow the elastic element to undergo elastic deformation when pressed. When the top cover is pressed, it drives the connecting base to move relative to the fixed base, causing the elastic element to deform within the gap. The deformation stroke of the elastic element serves as the trigger stroke to trigger the switch to open and close. The elastic element is a wire-formed spring, which is arranged in a ring shape and includes two elastic arms. The elastic arms are inclined and are used to drive the elastic element to deform around the fixed end at the fixed base as a fulcrum when the top cover is pressed. One end of each of the two elastic arms is fixedly mounted on both sides of the fixed base, and the other end is connected via a connecting part, which is rotatably engaged with the connecting base.

[0012] Furthermore, the fixed base has fixed grooves on both sides, and the end of the elastic arm is bent and extended into the fixed groove and fixedly engaged with the side wall of the fixed groove; the connecting base has a snap-fit ​​groove, and the connecting part is rotatably disposed in the snap-fit ​​groove.

[0013] Furthermore, the snap-fit ​​groove has an opening that gradually narrows from the outside in, so as to facilitate the engagement of the connecting part and prevent the connecting part from coming out.

[0014] Furthermore, the connecting seat and the top cover are integrally formed, and the fixing seat and the base are integrally formed.

[0015] This invention offers significant advantages: it transforms the pressing action into axial movement of a magnetic trigger by using a closed, circular track that descends in height, and combines this with magnetic non-contact conduction to complete the switch state switching. The non-contact cooperation between the magnetic trigger and the magnetic conduction avoids the arcing loss and contact breakage jitter that easily occur with traditional switch metal contacts during small strokes, greatly improving the sensitivity of switch control and the stability of electrical signal transmission. Simultaneously, the centrally symmetrical circular track guides the magnetic trigger to perform stable and smooth axial displacement, reducing the probability of mechanical jamming. Combined with the small-stroke pressing mechanism, this not only provides a crisp and clean pressing feel but also significantly extends the overall service life of the control panel. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, obtaining other drawings based on these drawings without creative effort still falls within the scope of the present invention.

[0017] Figure 1 This is a schematic diagram of the overall structure of a small travel switch panel according to the present invention.

[0018] Figure 2 This is a schematic diagram of the structure of the present invention when the top cover is removed and the switch is pressed.

[0019] Figure 3 This is a schematic diagram of the trigger mechanism when the switch is pressed.

[0020] Figure 4 This is a cross-sectional structural diagram of the present invention.

[0021] Figure 5 for Figure 4 A magnified view of the details at point A in the middle.

[0022] Figure 6 This is a schematic diagram of the structure of the present invention when the top cover is removed during switch reset.

[0023] Figure 7 This is a schematic diagram of the trigger mechanism during switch reset.

[0024] Figure 8 This is a schematic diagram of the pressing mechanism.

[0025] In the diagram, 1 is the base; 11 is the fixed seat; 111 is the fixed groove; 2 is the top cover; 21 is the connecting seat; 211 is the snap-fit ​​groove; 212 is the opening; 22 is the fixed shaft; 3 is the pressing mechanism; 31 is the elastic element; 311 is the elastic arm; 312 is the connecting part; 32 is the gap; 4 is the triggering mechanism; 41 is the magnetic trigger part; 42 is the magnetic conduction part; 43 is the drive seat; 431 is the track; 432 is the limiting groove; 44 is the magnetic sheet; and 45 is the torsion spring. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings.

[0027] It should be noted that all uses of "first" and "second" in the embodiments of the present invention are for the purpose of distinguishing two entities or parameters with the same name but different names. It is clear that "first" and "second" are only for the convenience of expression and should not be construed as limiting the embodiments of the present invention. Subsequent embodiments will not explain this in detail.

[0028] The directional and positional terms used in this invention, such as "up," "down," "front," "back," "left," "right," "inner," "outer," "top," "bottom," and "side," are merely for reference to the accompanying drawings. Therefore, the directional and positional terms used are for illustrating and understanding this invention, and not for limiting the scope of protection of this invention.

[0029] This application provides a small limit switch panel, such as... Figures 1 to 8 As shown: It includes a base 1, a top cover 2, a pressing mechanism 3 for triggering the opening and closing of the switch, and a triggering mechanism 4 for controlling the opening and closing of the switch. The triggering mechanism 4 includes a magnetic triggering part 41 and a magnetic conducting part 42. The magnetic triggering part 41 is provided with a driving seat 43 on its outer periphery. The driving seat 43 is provided with two centrally symmetrical tracks 431. The tracks 431 are arranged from high to low and are closed in a ring. When the top cover 2 presses the triggering switch, the magnetic triggering part 41 moves axially from high to low along the tracks 431, and then triggers the magnetic conducting part 42 to conduct the switch through magnetic connection.

[0030] In this embodiment, the drive base 43 houses a magnetic trigger 41, whose surface has an annular closed track 431 forming an inclined extension surface through a height difference. When the user presses down on the top cover 2, the action pressure is transmitted downward to the trigger mechanism 4. Due to the annular guide of the track and the height difference, the magnetic trigger 41, driven by the pressure of the top cover 2, moves axially downward along an asymmetrical closed track from high to low (towards the direction closer to the base 1). Due to the change in its axial distance, the magnetic field boundary of the magnetic trigger 41 moves relative to it, thereby producing a physical effect that changes the magnetic flux of the lower magnetic conduction part 42. When the magnetic trigger 41 moves to the bottom with the track 431, the magnetic field strength it generates is enhanced to a threshold sufficient to trigger the magnetic conduction part 42, causing the internal contacts to close or completing the logic state flip. This process does not require rigid physical collision between the two electrical contacts, but relies on magnetic coupling transmission, thus avoiding the contact arcing and material mechanical wear that are prone to occur in micro-stroke mechanical switches, and improving the stability of signal output.

[0031] Optionally, in some embodiments, a limiting groove 432 is formed at the connection of the two tracks 431, and the magnetic trigger part 41 engages with the limiting groove 432 after it is in place to form a limiting connection, so that the magnetic trigger part 41 is located in the conducting position of the magnetic conducting part 42.

[0032] When the top cover 2 is pressed, causing the magnetic trigger part 41 to slide along the track 431 to its lowest point under the guidance of the drive seat 43, it will slide into and engage in the limiting groove 432 formed by the intersection of the two tracks 431. This engaging and limiting action keeps the entire mechanism in this specific position without further external force intervention. The depth and width of the limiting groove 432 are adapted to the mating part of the magnetic trigger part 41, ensuring that its axial distance is within the effective conduction range that can stably trigger the magnetic conduction part 42. This design achieves state locking through mechanical locking, avoiding malfunctions caused by displacement of the magnetic components due to minor external vibrations.

[0033] As an alternative embodiment, those skilled in the art can also add micro-elastic damping buckles to the inner wall surface of the limiting groove to further improve the seismic stability in the snap-fit ​​state and provide a clearer sense of segmentation.

[0034] Optionally, in some embodiments, the magnetic triggering part 41 is a permanent magnet, and the magnetic conducting part 42 is a reed switch. The permanent magnet moves above the reed switch via the track 431, thereby triggering the reed switch to conduct.

[0035] Here, the permanent magnet serves as the component providing a stable spatial magnetic field, while the reed switch is fixedly mounted on the base 1 and connected in series in the control circuit. When the permanent magnet rotates along track 431 and moves axially downwards, approaching from the side along a curved trajectory and finally hovering directly above the reed switch, the magnetic lines of force generated by the permanent magnet pass through the glass shell of the reed switch. This magnetizes the two previously separate, highly permeable elastic reeds inside, causing them to attract and contact each other, thus establishing an electrical path. When the permanent magnet leaves this area, the magnetic field disappears, and the reed switch automatically disconnects due to its elastic restoring force. Using a standard reed switch and permanent magnet combination simplifies the circuit board layout and isolates the electrical contacts from the influence of dust and moisture.

[0036] In this embodiment, by cleverly designing the motion paths of the permanent magnet and the reed switch, their relative motion trajectories are planned as a nonlinear curved surface path that first approaches and then deviates. When the permanent magnet moves along the curved surface of track 431, the relative displacement between its magnetic field centerline and the reed switch's central axis is not a direct approximation, but rather an arc-shaped oscillation with a spatial dimension, thus physically forming a magnetic field hysteresis interval with a significantly different action threshold and release threshold. The beneficial effect of this design is that, at the critical point where the small-stroke switch is triggered, even if the upper cover 2 experiences a slight displacement due to a slight tremor of the finger, this magnetic field hysteresis interval can effectively absorb these minor vibrations, preventing the reed switch from repeatedly engaging and disengaging, greatly ensuring the reliability of switch state switching and the reliability of a single pulse of electrical signal output.

[0037] Optionally, in some embodiments, the magnetic trigger part 41 is provided with a magnetic sheet 44 at one end for triggering the reed switch. The magnetic sheet 44 moves together with the magnetic trigger part 41 to the conducting position of the magnetic conduction part 42 during the process of pressing the trigger switch on the upper cover 2.

[0038] The magnetic guide plate 44 is generally made of soft magnetic material and is installed on the bottom surface of the permanent magnet facing the reed switch. When the magnetic trigger part 41 moves closer to the reed switch with axial displacement, the magnetic guide plate 44 can converge and constrain the magnetic lines of force emitted by the permanent magnet, so that the divergent magnetic field is more concentratedly projected onto the reed switch's tongue area. This configuration greatly enhances the local magnetic induction intensity in the working direction, improves the suddenness and accuracy of the reed switch's engagement action, reduces the dead zone of the switch, and ensures that even when the upper cover 2 is in a very short stroke pressing state, the reed switch can immediately obtain a sufficiently high magnetic field to complete instantaneous conduction.

[0039] In this embodiment, the permanent magnet and the magnetic conductive sheet 44 together constitute a highly efficient dual magnetic circuit structure. During the pressing stroke of the upper cover 2, as the magnetic trigger part 41 moves down along the track 431, the magnetic conductive sheet 44 gradually cuts into and deeply enters the working magnetic circuit. This dynamic cutting process changes the magnetic reluctance distribution of the air gap, so that the magnetic field strength at the location of the reed switch does not increase slowly and linearly with the stroke in the traditional way, but exhibits a step-like nonlinear change of "weak in the early stage - rapid increase in the middle stage - saturation in the later stage". The technical effect brought about by this physical characteristic of magnetic field abrupt change is very significant. When the upper cover 2 is pressed down to a specific stroke point, the internal magnetic force increases dramatically, thereby forming a clearer and more sensitive conduction / release difference, which greatly improves the sensitivity of short stroke triggering.

[0040] Optionally, in some embodiments, the upper cover 2 is provided with a fixed shaft 22, the magnetic trigger part 41 is rotatably mounted on the fixed shaft 22, and a torsion spring 45 is sleeved on the fixed shaft 22. One end of the torsion spring 45 is fixed to the upper cover 2, and the other end is fixedly mounted on the magnetic trigger part 41.

[0041] The fixed shaft 22 provides an axial guide and rotation center for the magnetic trigger 41. During the pressing cycle, when the upper cover 2 is subjected to downward pressure, the magnetic trigger 41 moves downward along the track 431 while overcoming the resistance of the torsion spring 45, generating a rotation angle. This causes the torsion spring 45 to undergo torsional deformation and accumulate torque elastic potential energy. When the external pressure on the upper cover 2 is removed, the torsion spring 45 releases the stored release force, driving the magnetic trigger 41 to rotate in the opposite direction along the closed annular track 431 and reset upward, thereby automatically removing the magnetic trigger 41 from the conductive position and resetting the switch. The torsion spring 45 ensures that the magnetic trigger 41 can accurately return to its original position after each release, improving the reproducibility accuracy of the multiple reset control.

[0042] In this embodiment, while the magnetic trigger 41 is rotatably mounted on the fixed shaft 22, it can also be slightly moved and adjusted along the axial direction of the fixed shaft 22. After adjustment, the position is locked by a fastening structure or threaded pair. The beneficial effect of this design is that it provides a physical action stroke calibration mechanism. If, during quality inspection before product delivery or after long-term use, the actual conduction distance of the switch deviates due to slight deformation of the plastic parts or attenuation of the magnet's magnetic force, technicians or maintenance personnel can directly compensate for or correct this deviation by adjusting the initial axial height of the permanent magnet on the fixed shaft 22. This effectively solves the extremely common problem of action distance drift in micro-stroke switches, greatly improving the product's assembly yield and long-term reliability.

[0043] Optionally, in some embodiments, the pressing mechanism 3 includes a fixed base 11, an elastic element 31, and a connecting base 21. The fixed base 11 is fixedly disposed on the base 1, and the connecting base 21 is fixedly disposed on the upper cover 2. One end of the elastic element 31 is fixedly disposed on the base 1 via the fixed base 11, and the other end is rotatably disposed on the connecting base 21. A gap 32 is formed between the base 1 and the upper cover 2 to allow the elastic element 31 to undergo elastic deformation when pressed. When the upper cover 2 is pressed, it drives the connecting base 21 to move relative to the fixed base 11, so that the elastic element 31 moves within the gap 32. The elastic element 31 deforms and the deformation stroke of the elastic element 31 is used as the trigger stroke to trigger the switch to open and close. The elastic element 31 is a wire forming spring. The elastic element 31 is arranged in a ring and includes two elastic arms 311. The elastic arms 311 are inclined and are used to drive the elastic element 31 to deform around the fixed end of the fixed seat 11 as the fulcrum by pressing the upper cover 2. One end of the two elastic arms 311 is fixedly arranged on both sides of the fixed seat 11, and the other end is connected by the connecting part 312. The connecting part 312 is rotatably snapped onto the connecting seat 21.

[0044] In the short-stroke control, the actuation mechanism 3 is responsible for limiting the displacement of the upper cover 2 and ensuring smooth downward pressure. The size of the gap 32 limits the maximum physical displacement that the upper cover 2 can be pressed down, forming the small stroke characteristic of the panel. The elastic element 31, which is a wire-formed spring, is constructed from continuous bent steel wire, with inclined elastic arms 311 symmetrically arranged on both sides. When the upper cover 2 is pressed down, the connecting seat 21, which is integrally connected to the upper cover, moves down, pressing down the connecting part 312 of the elastic element 31. Since the elastic arm 311 is inclined, the entire wire spring undergoes bending elastic deformation with the fixed seat 11 as the reference fulcrum. At this time, the connecting part 312 undergoes a slight relative rotation within the connecting seat 21 to absorb the horizontal displacement caused by the deformation of the inclined arm. This geometric layout allows the operator to receive a sudden, gentle, and clearly defined reaction force even with extremely small strokes (e.g., less than 1.5 mm), establishing good mechanical tactile feedback.

[0045] Optionally, in some embodiments, the fixing seat 11 is provided with fixing grooves 111 on both sides, and the end of the elastic arm 311 is bent and extended into the fixing groove 111 and fixedly engaged with the side wall of the fixing groove 111; the connecting seat 21 is provided with a snap-fit ​​groove 211, and the connecting part 312 is rotatably disposed in the snap-fit ​​groove 211.

[0046] The fixing groove 111 completely locks the lateral and longitudinal displacements of the two ends of the molded spring through its internal limiting wall, preventing the spring from loosening under long-term high-frequency alternating stress. Simultaneously, the snap-fit ​​groove 211 at the bottom of the connecting seat 21 forms a partially semi-enclosed receiving cavity, and the connecting part 312 at the top of the elastic element 31 passes laterally through the snap-fit ​​groove 211. When the upper cover 2 is regularly pressed, the connecting part 312 can only rotate axially within this snap-fit ​​groove 211, and cannot produce vertical displacement in the disengagement direction. This limiting design ensures the lossless normal transmission of the pressing pressure.

[0047] Optionally, in some embodiments, the snap-fit ​​groove 211 is provided with an opening 212, which is gradually narrowed from the outside to the inside, so as to facilitate the snap-fit ​​of the connecting part 312 and prevent the connecting part 31 from coming out.

[0048] The opening 212 with its tapered structure forms a typical snap-fit ​​assembly guide surface. During assembly on a factory assembly line, simply align the connecting part 312 of the wire spring with the opening 212 and press it inward. Utilizing the slight flexible deformation of the material, the connecting part 312 smoothly passes through the tapered section and enters the snap-fit ​​groove 211. Once inside, because the width of the baffle wall inside the opening 212 is smaller than the wire diameter, it automatically locks, preventing the connecting part 312 from falling out of the groove during the high-frequency rebound of the switch. This optimizes the processing and assembly process and enhances the structural strength of the component connection.

[0049] Optionally, in some embodiments, the connecting seat 21 is integrally formed with the upper cover 2, and the fixing seat 11 is integrally formed with the base 1.

[0050] The connecting seat 21 and the top cover 2, as well as the fixing seat 11 and the base 1, are made of engineering plastics and manufactured as a single integral structure through injection molding. This design eliminates the accumulation of assembly tolerances between parts, avoids the potential risk of loosening or misalignment of connecting screws or clips after long-term and frequent use, and also enhances the overall rigidity of the housing assembly, making the control of minute strokes more precise.

[0051] How the whole solution works: When the user applies external force to press the top cover 2, the top cover 2 drives the integrally formed connecting seat 21 to move downwards synchronously, pressing the elastic element 31 of the pressing mechanism 3. The two inclined elastic arms 311 of the elastic element 31 bend and deform within the gap 32 with the fixed seat 11 on the base 1 as a rigid fulcrum, accumulating a restoring elastic force. At the same time, the connecting part 312 rotates slightly within the snap-fit ​​groove 211 to conform to the deformation trajectory. During this extremely short downward stroke, the top cover 2 synchronously drives the internal trigger mechanism 4 to move downwards, so that the magnetic trigger part 41, while overcoming the resistance of the torsion spring 45, slides its outer peripheral mating part along the closed annular track 431 set from high to low within the drive seat 43 and undergoes axial downward displacement.

[0052] During the pressing process of the dual magnetic circuit composed of the permanent magnet and the magnetic plate 44, the magnetic plate 44 cuts into the magnetic circuit, causing the magnetic field strength to produce a nonlinear abrupt change of "weak - rapid increase - saturation"; at the same time, the permanent magnet approaches the magnetic conduction part 42 (reed switch) on the base 1 along the track surface in a nonlinear relative path of first approaching and then deviating, thereby forming a magnetic field hysteresis interval for action and release.

[0053] When the magnetic trigger 41 slides to the end position at the bottom of the track, it engages with the limiting groove 432 formed at the connection of the two tracks 431 to lock its position. At this time, the magnetic trigger 41 is closest to the reed switch on the base 1. The concentrated abrupt magnetic lines of force penetrate the medium and act on the reed switch, causing the elastic spring inside the reed switch to be attracted by the magnetic force and momentarily close, thereby connecting the control circuit. When a specific external force is pressed again or removed, the torsion spring 45 releases the stored torque. Combined with the rebound force of the elastic element 31, it drives the magnetic trigger 41 to move upward along the annular track 431 and disengage from the limiting groove 432. The magnetic field weakens after passing the hysteresis interval, and the reed inside the reed switch automatically opens and disconnects the circuit due to the loss of sufficient magnetic force. The entire panel mechanism returns to its initial standby state. After long-term use, if the action distance drifts, the stroke can be precisely calibrated by adjusting the initial axial position of the permanent magnet on the fixed shaft 22.

[0054] The above description discloses only preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. Therefore, equivalent variations made in accordance with the claims of the present invention are still within the scope of the present invention.

[0055] While the invention has been described with reference to several specific embodiments, it should be understood that the invention is not limited to the disclosed specific embodiments. The invention is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims

1. A small limit switch panel, characterized in that: The device includes a base, a top cover, a pressing mechanism for triggering the opening and closing of a switch, and a triggering mechanism for controlling the opening and closing of the switch. The triggering mechanism includes a magnetic triggering part and a magnetic conducting part. The magnetic triggering part is provided with a driving seat on its outer periphery. The driving seat is provided with two centrally symmetrical tracks. The tracks are arranged from high to low and are closed in a ring. When the top cover is pressed to trigger the switch, the magnetic triggering part moves axially from high to low along the tracks, thereby triggering the magnetic conducting part to turn on the switch through magnetic connection.

2. The short-stroke switch panel as described in claim 1, characterized in that: A limiting groove is formed at the connection of the two tracks. After the magnetic trigger part is in place, it engages with the limiting groove to form a limiting connection, so that the magnetic trigger part is located in the conducting position of the magnetic conduction part.

3. The short-stroke switch panel as described in claim 2, characterized in that: The magnetic triggering part is a permanent magnet, and the magnetic conducting part is a reed switch. The permanent magnet moves above the reed switch via a track, thereby triggering the reed switch to conduct.

4. The short-stroke switch panel as described in claim 1 or 2, characterized in that: The magnetic triggering part is equipped with a magnetic sheet at one end for triggering the reed switch. When the triggering switch is pressed on the upper cover, the magnetic sheet moves together with the magnetic triggering part to the conducting position of the magnetic conduction part.

5. The short-stroke switch panel as described in claim 1, characterized in that: The upper cover is provided with a fixed shaft, the magnetic trigger part is rotatably mounted on the fixed shaft, and a torsion spring is sleeved on the fixed shaft. One end of the torsion spring is fixed to the upper cover, and the other end is fixedly mounted on the magnetic trigger part.

6. The short-stroke switch panel as described in claim 1, characterized in that: The pressing mechanism includes a fixed base, an elastic element, and a connecting base. The fixed base is fixedly mounted on the base, and the connecting base is fixedly mounted on the top cover. One end of the elastic element is fixedly mounted on the base via the fixed base, and the other end is rotatably mounted on the connecting base. A gap is formed between the base and the top cover to allow the elastic element to undergo elastic deformation when pressed. When the top cover is pressed, it drives the connecting base to move relative to the fixed base, causing the elastic element to deform within the gap. The deformation stroke of the elastic element serves as the trigger stroke to trigger the switch to open or close. The elastic element is a wire-formed spring, which is ring-shaped and includes two elastic arms. The elastic arms are inclined and used to drive the elastic element to deform around the fixed end at the fixed base as a fulcrum when the top cover is pressed. One end of each of the two elastic arms is fixedly mounted on both sides of the fixed base, and the other end is connected via a connecting part, which is rotatably engaged with the connecting base.

7. The short-stroke switch panel as described in claim 6, characterized in that: The fixed base has fixed grooves on both sides, and the end of the elastic arm is bent and extended into the fixed groove and fixedly engaged with the side wall of the fixed groove; the connecting base has a snap-fit ​​groove, and the connecting part is rotatably disposed in the snap-fit ​​groove.

8. The short-stroke switch panel as described in claim 7, characterized in that: The snap-fit ​​groove has an opening that gradually narrows from the outside in, so as to allow the connecting part to snap into place and prevent the connecting part from coming out.

9. The short-stroke switch panel as described in claim 6, characterized in that: The connecting seat and the upper cover are integrally formed, and the fixing seat and the base are integrally formed.

Images