Rotary microswitch

Abstract

This application provides a pivot-type micro switch, including a base, a pivot, a cantilever, a button, a reset element, a sensor, and a trigger. The pivot is rotatably connected to the base, and the cantilever is connected to the pivot, with one end spaced relative to the base and moving closer to or away from the base as the pivot rotates. The button is connected to the cantilever for applying pressure to the cantilever. One end of the reset element is connected to the base, and the other end is connected to the cantilever. When the button is released from pressure on the cantilever, the reset element drives the cantilever to return to its initial position. One of the sensor and the trigger is connected to the base, and the other is connected to the cantilever. When the button is pressed, the cantilever rotates around the pivot, causing the trigger to move closer to or away from the sensor, thereby triggering the sensor. Due to the pivot-base rotational connection structure, the pressure applied by the button to the cantilever is converted into rotational motion through the pivot, thus the cantilever is less prone to material fatigue fracture due to repeated bending during long-term use.

Description

Technical Field

[0001] This application belongs to the field of micro switch technology, and more specifically, relates to a rotary shaft micro switch. Background Technology

[0002] In the field of electrical switch technology, microswitches, as a key component that uses minute displacement to achieve rapid circuit switching, have reliability and durability that directly affect the stable operation of the entire electrical control system. The core transmission component of a traditional microswitch typically includes a metal crank structure. Under the action of the operating mechanism, the crank drives the instantaneous action of the moving contact through its own lever swing, thereby completing the circuit switching.

[0003] However, in practical applications, especially in automated equipment or high-load electrical control applications requiring frequent, high-speed operation, this crank structure is subjected to continuous pressing and rebound cycles. Each action is accompanied by elastic deformation and stress concentration in the material. Over a long period, the metal material of the crank is prone to mechanical fatigue due to repeated stress cycles. This fatigue effect gradually leads to changes in the microstructure of the crank, resulting in the initiation and propagation of fatigue cracks, which may eventually cause the crank to break, causing the switch transmission to fail. This problem not only reduces the service life of the microswitch but also brings a chain of technical challenges such as unexpected equipment downtime, increased maintenance costs, and decreased system reliability. Utility Model Content

[0004] The purpose of this application is to provide a rotary shaft micro switch to solve the technical problem that the crank of the existing micro switch is prone to fatigue fracture after long-term use.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: A rotary shaft micro switch is provided, comprising: Base; A rotating shaft is rotatably connected to the base; A cantilever is connected to the rotating shaft, one end of which is spaced apart from the base and moves closer to or further away from the base as the rotating shaft rotates. A button, connected to the cantilever, is used to apply pressing force to the cantilever; The reset component is connected to the base at one end and to the cantilever at the other end. When the button is released from the pressure on the cantilever, the reset component drives the cantilever to return to its initial position. The sensor and the trigger are connected, one to the base and the other to the cantilever. When the button is pressed, the cantilever rotates around the pivot and causes the trigger to move closer to or away from the sensor, thereby triggering the sensor.

[0006] As a further improvement to the above technical solution: Optionally, the base also has a mounting groove, in which one of the sensing element and the trigger element is mounted, and when the button is pressed, the other of the sensing element and the trigger element can at least partially extend into the mounting groove.

[0007] Optionally, the sensing element is a Hall sensor, and the trigger element is a magnetic element; The Hall sensor is installed in the mounting slot, and the magnetic component is connected to the cantilever. When the button is pressed, the cantilever moves the magnetic component closer to the Hall sensor to trigger the Hall sensor to generate a corresponding electrical signal.

[0008] Optionally, the sensing element is a photoelectric pair, and the triggering element is a light-shielding plate; The emitting end of the photoelectric pair is installed on one side wall of the mounting groove, and the receiving end of the photoelectric pair is installed on the side wall of the mounting groove opposite to the emitting end. The light shield is connected to the cantilever. When the button is pressed, the cantilever drives the light shield to extend between the emitting end and the receiving end of the photoelectric pair. After the light shield blocks the receiving end from receiving the light signal, the photoelectric pair generates a corresponding electrical signal.

[0009] Optionally, the reset element is a spring sheet, one end of which rests against the base, and the other end of which is connected to the cantilever, and is an integral structure with the cantilever.

[0010] Optionally, the reset element is a spring, the base is provided with a first spring mounting groove, the cantilever is provided with a second spring mounting groove, one end of the spring abuts against the first spring mounting groove, and the other end of the spring abuts against the second spring mounting groove.

[0011] Optionally, the reset element includes a first magnetic reset element and a second magnetic reset element. The first magnetic reset element is connected to the base, and the second magnetic reset element is connected to the cantilever. An attractive or repulsive force is generated between the first magnetic reset element and the second magnetic reset element so that when the button removes the pressure on the cantilever, the first magnetic reset element or the second magnetic reset element drives the cantilever to return to its initial position.

[0012] Optionally, the rotary micro switch includes pins connected to the base for electrical connection with the sensing element and external circuitry.

[0013] Optionally, the base may also be provided with snap-fit ​​protrusions for engaging with an external circuit board.

[0014] Optionally, the rotary micro switch also includes a cover, which, together with the base, forms an accommodating space. The rotary shaft, cantilever, reset element, sensing element, and trigger element are all disposed within the accommodating space, and the button extends at least partially out of the cover.

[0015] The beneficial effects of the rotary shaft micro switch provided in this application are as follows: The rotary micro switch provided in this application, due to its rotating connection structure between the rotary shaft and the base, converts the pressing force of the button on the cantilever into rotational motion through the rotary shaft, rather than the reciprocating bending stress in the traditional crank structure. Therefore, the cantilever is less prone to material fatigue fracture due to repeated bending during long-term use. This structure fundamentally changes the force transmission path, effectively reducing the risk of fatigue damage to key transmission components, thereby improving the service life and operational reliability of the rotary micro switch. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, 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 this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A cross-sectional view of the first type of rotary micro switch provided in this application; Figure 2 A partial structural schematic diagram of the first type of rotary shaft micro switch provided in this application; Figure 3 A cross-sectional view of the second type of rotary micro switch provided in this application; Figure 4 A partial structural schematic diagram of the second type of rotary shaft micro switch provided in this application; Figure 5 A cross-sectional view of the third type of rotary micro switch provided in this application; Figure 6 A partial structural schematic diagram of the third type of rotary shaft micro switch provided in this application; Figure 7 A cross-sectional view of the fourth type of rotary micro switch provided in this application; Figure 8 A partial structural schematic diagram of the fourth type of rotary shaft micro switch provided in this application; Figure 9 A three-dimensional structural diagram of the rotary micro switch provided in this application.

[0018] The following are the labeling elements in the figure: 1. Base; 11. Mounting slot; 12. Pin; 13. Snap-fit ​​protrusion; 2. Shaft; 3. Cantilever; 4. Buttons; 5. Reset components; 6. Sensing element; 7. Triggering element; 8. Cover. Detailed Implementation

[0019] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0020] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0021] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0023] To address the technical problem that the crank structure in traditional microswitches is prone to breakage due to mechanical fatigue during long-term repeated pressing and rebound, leading to switch failure, this application provides a pivot-type microswitch, which includes a base 1, a pivot 2, a cantilever 3, a button 4, a reset element 5, a sensing element 6, and a trigger element 7.

[0024] In this rotary micro switch, the base 1 serves as the supporting structure for the entire switch, with a support platform on it to support the rotary shaft 2. The rotary shaft 2 is rotatably connected to this support platform, allowing it to rotate around its own axis. The cantilever 3 is fixedly connected to the rotary shaft 2, and its overall structure moves synchronously with the rotation of the rotary shaft 2. One end of the cantilever 3 is spaced apart from the base 1 and can move closer to or further away from the base 1 when the rotary shaft 2 rotates. The button 4 is mounted on the cantilever 3 to receive external pressing pressure. When the user presses the button 4, the pressing pressure is directly transmitted to the cantilever 3, thereby driving the cantilever 3 and the connected rotary shaft 2 to rotate. The reset member 5 is connected at both ends to the base 1 and the cantilever 3, respectively. After the pressing pressure on the button 4 is removed, the reset member 5 provides a restoring force, causing the cantilever 3 to drive the rotary shaft 2 back to its initial position, ensuring that the switch can perform repeated operations. The sensing element 6 and the trigger element 7 are respectively set on the fixed part and the movable part of the switch. One of them is connected to the base 1 and the other is connected to the cantilever 3. When the button 4 is pressed, the cantilever 3 rotates around the pivot 2 and drives the trigger element 7 to move, so that it moves relatively closer or further away from the sensing element 6, thereby triggering the state change of the sensing element 6 and generating a corresponding electrical signal to realize the on / off control function of the switch.

[0025] The rotary micro switch of this application employs a rotating connection structure between the rotary shaft 2 and the cantilever 3. The pressing force exerted by the button 4 on the cantilever 3 is converted into rotational motion through the rotary shaft 2, rather than the reciprocating bending stress found in traditional crank structures. Therefore, the cantilever 3 is less prone to material fatigue fracture due to repeated bending during long-term use. This structure fundamentally changes the force transmission path, effectively reducing the risk of fatigue damage to critical transmission components, thereby improving the service life and operational reliability of the rotary micro switch.

[0026] In one specific embodiment of this application, the base 1 is further provided with a mounting groove 11, which is used to accommodate one of the sensing element 6 and the trigger element 7. Specifically, one of the sensing element 6 and the trigger element 7 is fixedly installed in the mounting groove 11, while the other is connected to the cantilever 3. When the user presses the button 4, the cantilever 3 rotates around the pivot 2, thereby driving the trigger element 7 connected to it to move, so that at least part of it can extend into the mounting groove 11, thereby forming a relatively close or contacting action with the sensing element 6 installed in the mounting groove 11, so as to realize the state change of the sensing element 6, and thus generate a corresponding electrical signal. This not only helps to ensure the accuracy and consistency of the action between the sensing element 6 and the trigger element 7, but also improves the compactness and assembly stability of the internal structure of the switch, which is beneficial to improving the overall working reliability of the switch.

[0027] like Figure 1 , Figure 3 and Figure 5As shown, in a specific embodiment of this application, the sensing element 6 is a Hall sensor, and the trigger element 7 is a magnetic element. Together, they achieve a non-contact inductive triggering function. The Hall sensor is fixedly installed in the mounting groove 11 on the base 1. This mounting groove 11 provides a stable mounting position and protective space for the Hall sensor, ensuring reliable positional accuracy and electrical connection during switch operation. The magnetic element is connected to the cantilever 3 and moves synchronously with the rotation of the cantilever 3. Its mounting position corresponds to that of the Hall sensor to ensure effective magnetic field coupling with the Hall sensor during switch operation. When the user presses the button 4, the button 4 transmits the pressing force to the cantilever 3, causing the cantilever 3 to rotate around the pivot 2. This, in turn, drives the magnetic element connected to it to move towards the Hall sensor, reducing the distance between them. As the magnetic element approaches the Hall sensor, the magnetic field strength around the Hall sensor changes, thereby triggering the internal circuitry of the Hall sensor to generate a corresponding electrical signal output, realizing the detection and conversion of the switch state. Using magnetic induction to trigger the switch not only avoids the wear and poor contact problems that are prone to occur in traditional mechanical contact structures, but also improves the response speed and electrical isolation performance of the switch, which is conducive to improving the overall reliability and service life of the switch.

[0028] like Figure 7 and Figure 8 As shown, in a specific embodiment of this application, the sensing element 6 is a phototransistor, and the trigger element 7 is a light-shielding plate. The detection and switching of the switch state are achieved by blocking the light path. The phototransistor includes a transmitting end and a receiving end. The transmitting end is fixedly installed on one side wall of the mounting groove 11, and the receiving end is correspondingly installed on the other side wall of the mounting groove 11 opposite to the transmitting end. A certain distance is maintained between the two to form a stable light path channel, ensuring that the light signal emitted by the transmitting end can reach the receiving end smoothly when there is no obstruction. The light-shielding plate is connected to the cantilever 3 and moves synchronously with the rotation of the cantilever 3. Its installation position corresponds to the light path channel of the phototransistor so that it can accurately enter or exit the light path area during the switch operation. When the user presses the button 4, the button 4 transmits the pressing force to the cantilever 3, causing the cantilever 3 to rotate around the rotating shaft 2, thereby driving the light-shielding plate connected to it to move towards the phototransistor until the light-shielding plate at least partially extends between the transmitting end and the receiving end of the phototransistor. At this time, the light-shielding plate blocks the light signal emitted by the transmitter, preventing the receiver from receiving it. After the phototransistor detects the interruption in the optical path, its internal circuitry generates a corresponding electrical signal output, thereby triggering and identifying the switch state. The combination of the phototransistor and the light-shielding plate not only provides excellent response speed and detection accuracy but also avoids wear issues caused by mechanical contact, thus helping to improve the switch's lifespan and operational reliability.

[0029] like Figure 1 and Figure 2 As shown, in a specific embodiment of this application, the reset member 5 adopts a spring-loaded structure, which provides a restoring force to return the cantilever 3 to its initial position through elastic deformation. One end of the spring-loaded piece abuts against the base 1, ensuring that the spring-loaded piece can be stably fixed on the base 1 under stress, providing a reliable fulcrum for the reset action of the cantilever 3; the other end of the spring-loaded piece is connected to the cantilever 3 and adopts an integral structure with the cantilever 3, thereby ensuring a high connection strength and structural consistency between the spring-loaded piece and the cantilever 3. During the switch operation, when the user presses the button 4, the button 4 transmits the pressing force to the cantilever 3, causing the cantilever 3 to rotate around the pivot 2, while simultaneously causing the spring-loaded piece to undergo elastic deformation and store elastic potential energy; when the pressing force on the button 4 is removed, the spring-loaded piece, relying on its own elastic recovery characteristics, quickly releases the stored elastic potential energy, pushing the cantilever 3 to rotate in the opposite direction around the pivot 2, causing it to drive the button 4 and related components back to the initial position, preparing for the next switch operation. This spring-loaded structure not only simplifies the number of internal parts and assembly process of the switch, but also, through its integrated design with the cantilever 3, further enhances the overall stability and consistency of the structure, ensuring accurate and reliable reset during multiple operations. Furthermore, this spring-loaded structure provides relatively uniform force feedback during operation, resulting in a linear tactile feel for button 4 during pressing and rebound. This means there is no significant abrupt change in resistance during the pressing phase, enabling smooth pressing and rebound actions, improving the user experience and reducing the risk of misoperation due to abnormal tactile feedback.

[0030] like Figure 5 and Figure 6As shown, in a specific embodiment of this application, the reset member 5 adopts a spring structure, which provides a restoring force to return the cantilever 3 to its initial position through the elastic deformation of the spring. To achieve stable installation and reliable positioning of the spring, the base 1 is provided with a first spring mounting groove, which is used to accommodate one end of the spring and provide a stable support surface to ensure that the spring can maintain the correct installation direction and positional accuracy during compression or rebound. At the same time, the cantilever 3 is provided with a second spring mounting groove corresponding to the first spring mounting groove, which is used to accommodate the other end of the spring, so that the two ends of the spring are respectively supported on the base 1 and the cantilever 3, thereby forming a stable two-end support structure. During the switch operation, when the user presses button 4, button 4 transmits the pressing force to cantilever 3, causing cantilever 3 to rotate around shaft 2. Simultaneously, this causes one end of the spring in the second spring mounting slot to move. During this process, the spring undergoes compression deformation and stores elastic potential energy. When the pressing force on button 4 is removed, the spring, relying on its elastic recovery characteristics, releases the stored elastic potential energy, pushing cantilever 3 to rotate in the opposite direction around shaft 2, causing it to return button 4 and related components to their initial position, preparing for the next switch operation. Because the spring structure has its two ends located in the mounting slots of base 1 and cantilever 3 respectively, it can provide continuous and uniform force changes during compression and rebound. Therefore, button 4 exhibits a linear operating feel during pressing and rebound, meaning there is no significant sudden change in resistance or jamming during the pressing phase. This allows for smooth pressing and rebound actions, helping to maintain operational consistency and reducing the probability of misoperation caused by abnormal feel.

[0031] like Figure 3 and Figure 4As shown, in a specific embodiment of this application, the reset member 5 adopts a magnetic reset structure, which includes a first magnetic reset member and a second magnetic reset member. The automatic reset function of the cantilever 3 is achieved through magnetic force. The first magnetic reset member is fixedly connected to the base 1, providing a fixed magnetic point of application for the entire reset structure. The second magnetic reset member, also known as the magnetic trigger 7, is fixedly connected to the cantilever 3 and moves synchronously with the rotation of the cantilever 3, ensuring a relative positional relationship with the first magnetic reset member during switch operation. The first and second magnetic reset members interact magnetically; this magnetic force can be either attractive or repulsive, determined specifically by the switch structure design and the polarity arrangement of the magnets. When the user presses the button 4, the button 4 transmits the pressing force to the cantilever 3, causing the cantilever 3 to rotate around the pivot 2. Simultaneously, this causes the second magnetic reset member connected to it to move, changing the relative position between the first and second magnetic reset members, thus strengthening or weakening the magnetic force effect. When the pressure applied to button 4 is removed, the attractive or repulsive force generated between the first and second magnetic reset components creates a restoring force that causes the cantilever 3 to return to its initial position. This restoring force drives the cantilever 3 to rotate in the opposite direction around the pivot 2, thereby returning button 4 and related components to their initial state, preparing for the next switching operation. Because the magnetic force in this magnetic reset structure changes non-linearly with displacement, it provides clear trigger feedback during operation, giving button 4 a segmented feel at the trigger point. This means that a pressure greater than the trigger point is required to overcome the magnetic resistance and complete the triggering process, with a noticeable difference in resistance before and after triggering. This tactile characteristic helps the operator perceive the trigger state, improving operational accuracy and reducing the risk of accidental triggering.

[0032] In one specific embodiment of this application, the rotary micro switch further includes a pin 12 connected to the base 1. This pin 12 serves as an electrical connection interface between the switch and an external circuit, used to realize the electrical signal output of the sensing element 6 and the conduction between the internal circuit of the switch and the external control loop. The pin 12 is fixedly mounted on the base 1, and its mounting position is adapted to the internal structure of the switch, ensuring stable electrical connection and mechanical fixation during switch assembly and use. The sensing element 6 is electrically connected to the pin 12 via an internal conductive path or a direct connection. When the sensing element 6 generates a corresponding electrical signal under the action of the button 4, this electrical signal can be transmitted to the external circuit through the pin 12, thereby realizing the detection and control of the switch state.

[0033] In one specific embodiment of this application, the base 1 is further provided with a snap-fit ​​protrusion 13, which is used to achieve quick snap-fit ​​fixing between the rotary micro switch and the external circuit board. The snap-fit ​​protrusion 13 is integrally formed with the base 1, and its structural dimensions are adapted to the corresponding snap-fit ​​structure on the external circuit board to ensure accurate positioning and a stable snap-fit ​​connection during assembly. In other embodiments, the rotary micro switch can also be fixed to the external circuit board by screws, welding, or other methods.

[0034] like Figure 9 As shown, in a specific embodiment of this application, the rotary micro switch further includes a cover 8, which cooperates with the base 1 to form a closed accommodating space for accommodating and protecting the internal functional components of the switch. Specifically, the rotary shaft 2, cantilever 3, reset element 5, sensing element 6, and trigger element 7 are all disposed within this accommodating space. The cover 8 and base 1 are fitted together to achieve stable installation and positioning, ensuring that each component maintains accurate positional relationships and reliable mechanical connections during switch operation. The connection between the cover 8 and base 1 effectively prevents interference and damage to the internal components from external dust, moisture, or other environmental factors, while providing necessary guidance and limiting for each moving part, ensuring the stability and consistency of the switch action. The button 4, as an external operating component of the switch, has at least a portion of its structure extending out of the cover 8, allowing the user to directly contact and press the button 4 to trigger the switch action. The portion of the button 4 extending out of the cover 8 maintains an appropriate gap and fit with the surface of the cover 8, ensuring both ease of operation and preventing damage to the internal structure due to excessive pressing or misoperation. The cover 8 not only enhances the overall structural integrity and protection of the rotary micro switch, but also provides the switch with a good appearance, while helping to achieve reliable operation and long service life of the switch in various application environments.

[0035] like Figure 1 and Figure 5 As shown, a limiting member is provided between the cover 8 and the trigger 7 to limit the maximum upward position of the trigger 7 on the cantilever 3.

[0036] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A rotary shaft type micro switch, characterized in that, include: Base (1); A rotating shaft (2) is rotatably connected to the base (1); A cantilever (3) is connected to the rotating shaft (2). One end of the cantilever (3) is spaced apart from the base (1) and moves closer to or away from the base (1) as the rotating shaft (2) rotates. Button (4), connected to the cantilever (3), is used to apply pressing force to the cantilever (3); The reset component (5) is connected at one end to the base (1) and at the other end to the cantilever (3). When the button (4) removes the pressure on the cantilever (3), the reset component (5) drives the cantilever (3) to return to its initial position. The sensor (6) and the trigger (7) are connected to the base (1) and the cantilever (3), respectively. When the button (4) is pressed, the cantilever (3) rotates around the pivot (2) and drives the trigger (7) to move closer to or away from the sensor (6) to trigger the sensor (6).

2. The rotary shaft micro switch as described in claim 1, characterized in that, The base (1) also has a mounting groove (11), in which one of the sensing element (6) and the trigger element (7) is installed. When the button (4) is pressed, the other of the sensing element (6) and the trigger element (7) can at least partially extend into the mounting groove (11).

3. The rotary shaft micro switch as described in claim 2, characterized in that, The sensing element (6) is a Hall sensor, and the trigger element (7) is a magnetic element; The Hall sensor is installed in the mounting slot (11), and the magnetic component is connected to the cantilever (3). When the button (4) is pressed, the cantilever (3) moves the magnetic component closer to the Hall sensor to trigger the Hall sensor to generate a corresponding electrical signal.

4. The rotary shaft micro switch as described in claim 2, characterized in that, The sensing element (6) is a photoelectric pair, and the triggering element (7) is a light shield; The emitting end of the photoelectric pair is installed on one side wall of the mounting groove (11), and the receiving end of the photoelectric pair is installed on the side wall of the mounting groove (11) opposite to the emitting end. The light shield is connected to the cantilever (3). When the button (4) is pressed, the cantilever (3) drives the light shield to extend between the emitting end and the receiving end of the photoelectric pair. After the light shield blocks the receiving end from receiving the light signal, the photoelectric pair generates a corresponding electrical signal.

5. The rotary shaft micro switch as described in claim 1, characterized in that, The reset component (5) is a spring sheet, one end of which rests against the base (1), and the other end of which is connected to the cantilever (3), and is an integral structure with the cantilever (3).

6. The rotary shaft micro switch as described in claim 1, characterized in that, The reset component (5) is a spring, the base (1) is provided with a first spring mounting groove, the cantilever (3) is provided with a second spring mounting groove, one end of the spring abuts against the first spring mounting groove, and the other end of the spring abuts against the second spring mounting groove.

7. The rotary shaft micro switch as described in claim 1, characterized in that, The reset component (5) includes a first magnetic reset component and a second magnetic reset component. The first magnetic reset component is connected to the base (1), and the second magnetic reset component is connected to the cantilever (3). The first magnetic reset component and the second magnetic reset component generate an attractive or repulsive force so that when the button (4) removes the pressure on the cantilever (3), the first magnetic reset component or the second magnetic reset component drives the cantilever (3) to return to its initial position.

8. The rotary shaft micro switch as described in any one of claims 1 to 7, characterized in that, Includes pins (12) connected to the base (1), the pins (12) being used for electrical connection with the sensing element (6) and external circuitry.

9. The rotary shaft micro switch as described in any one of claims 1 to 7, characterized in that, The base (1) is also provided with a snap-fit ​​protrusion (13) for snapping with an external circuit board.

10. The rotary shaft micro switch as described in any one of claims 1 to 7, characterized in that, It also includes a cover (8), which together with the base (1) forms an accommodating space. The rotating shaft (2), cantilever (3), reset member (5), sensing member (6) and trigger member (7) are all located in the accommodating space. The button (4) extends at least partially out of the cover (8).

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