Magnetic switch having wake-up function

By designing a magnetic shaft with a wake-up function, the protrusions on the guide core drive the moving and stationary plates to contact or separate, thereby waking up and putting the Hall element into sleep mode. Combined with a silent arm to buffer impact force, this solves the problems of high power consumption and noise in wireless keyboards, simplifies the structure, and reduces maintenance costs.

WO2026026660A1PCT designated stage Publication Date: 2026-02-05DONGGUAN CITY KAIHUA ELECTRONICS
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Patent Information

Application Number
PCT/CN2025/110361
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-08-01
Filing Date
2025-07-24
Publication Date
2026-02-05

AI Technical Summary

Technical Problem

Existing Hall effect sensor key switches consume a lot of power and have a complex structure on wireless keyboards, making it difficult to achieve a silent function and resulting in high maintenance costs.

Method used

Design a magnetic shaft with a wake-up function. The convex ridges on the guide core drive the moving plate and the stationary plate to contact or separate, thereby waking up and putting the Hall element into sleep mode. Combined with a silent arm to buffer the impact force, the structure is simplified.

Benefits of technology

It achieves low power consumption and extended usage time for wireless keyboards, and features a silent function. Its simple structure reduces maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

Disclosed is a magnetic switch having a wake-up function, comprising a base housing, a top housing, a switch stem, a return spring, a permanent magnet, and a Hall element, and further comprising a movable tab arranged on a side edge of the switch stem and elastically bent downwards as a whole, and a fixed tab arranged below the movable tab; at least one protrusion is formed on the side edge of the switch stem, the movable tab comprises at least one movable tab support arm extending transversely in the direction of the protrusion, the movable tab support arm is driven by the protrusion under an action of an external force pressing the switch stem to enable contact with or separation from the fixed tab, and the movable tab and the fixed tab are each electrically connected to an external circuit board. The present invention is configured such that when pressed by a user, a mechanical switch is triggered so as to wake up a Hall element to achieve signal transmission. When not pressed, the mechanical switch and the Hall element do not interfere with one another, and the Hall element goes into sleep mode, thereby achieving the purposes of saving power and prolonging wireless keyboard usage duration. Moreover, a silencing arm is provided to cushion the impact caused by downward force, thereby achieving silencing functionality.
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Description

A magnetic shaft with wake-up function Technical Field

[0001] This invention relates to the field of push-button switch technology, and more particularly to a magnetic shaft with a wake-up function. Background Technology

[0002] The most common type of key switch used in mechanical keyboards is the Hall effect key switch. The magnet is mounted on the spindle, and the Hall element is coaxial with the magnet and located below the magnet. The Hall element is triggered by the up and down movement of the spindle, which in turn moves the magnet to achieve the on or off state of the key switch.

[0003] Conventional key switches are typically mounted on the keyboard circuit board and are always electrically connected to it. This method leads to high power consumption in wireless keyboards, requiring frequent charging and inconvenience for daily use. Furthermore, most key switches lack a silent operation function. To achieve this, noise-reducing pads are needed at the top and bottom of the switch's contact core to cushion the impact of the core against the inner wall of the housing. This results in a more complex and numerous internal structure for the key switch, increasing maintenance costs and overall usability. Summary of the Invention

[0004] To address the aforementioned shortcomings, the present invention aims to provide a magnetic shaft with a wake-up function. When pressed by the user, a mechanical switch is activated to wake up a Hall element and transmit signals. When not pressed, the mechanical switch and the Hall element do not interfere with each other, and the Hall element remains dormant, thereby saving power and increasing the usage time of the wireless keyboard. Furthermore, it features a built-in mute arm to buffer the impact of downward pressure, thus achieving a silent function. Its simple structure facilitates production and use.

[0005] The technical solution adopted by the present invention to achieve the above objectives is as follows:

[0006] A magnetic shaft with a wake-up function includes a base, a top cover fitted onto the base, a guide core disposed within the base and the top cover and extending upward through the top cover, a return spring with its upper end pressing against the guide core and its lower end pressing against the base, a permanent magnet disposed at the lower end of the guide core, a Hall element, and further includes a movable plate disposed on the side of the guide core and a stationary plate disposed below the movable plate; at least one protrusion is formed on the side of the guide core, and the movable plate includes at least one movable plate support arm extending laterally in the direction of the protrusion. Under the action of an external force pressing the guide core, the movable plate support arm is driven by the protrusion to achieve contact or separation with the stationary plate, thereby controlling the conduction and disconnection of the Hall element, thereby waking up or putting the Hall element into sleep mode accordingly. After the Hall element is awakened, it senses the descending permanent magnet; the movable plate and the stationary plate are electrically connected to an external circuit board, and the movable plate and the stationary plate are stacked vertically.

[0007] As a further improvement of the present invention, the moving piece further includes a moving piece body and at least one moving piece pin integrally formed on the moving piece body, the moving piece support arm is disposed on the moving piece body, and the moving piece pin is electrically connected to an external circuit board.

[0008] As a further improvement of the present invention, the stationary plate includes a stationary plate body located below the moving plate body, at least one stationary plate support arm disposed on the stationary plate body and extending laterally in the direction of the protrusion, and at least one stationary plate pin integrally formed on the stationary plate body. The stationary plate pin is electrically connected to an external circuit board. The moving plate support arm is driven by the protrusion under the force of an external force pressing the core to achieve contact or separation with the stationary plate support arm.

[0009] As a further improvement of the present invention, at least one stationary plate clearance groove is formed on the stationary plate body to accommodate the moving plate pin.

[0010] As a further improvement of the present invention, the number of the moving plate support arm, the number of the stationary plate support arm, and the number of the protrusions correspond one-to-one.

[0011] As a further improvement of the present invention, at least one mute arm that can be elastically bent and reset is formed at the middle and lower ends of the guide core, and a buffer space is formed between the mute arm and the guide core for the mute arm to move.

[0012] As a further improvement of the present invention, a silent buffer platform is formed on the outermost side of the silent arm.

[0013] As a further improvement of the present invention, the stationary plate pin includes a first stationary plate pin that bends downward from the stationary plate body, and a second stationary plate pin that is disposed on the lower side of the first stationary plate pin and bends downward in the direction of the guide core, wherein the second stationary plate pin gives way to the mute arm disposed at the lower end of the guide core.

[0014] The beneficial effects of this invention are as follows:

[0015] The structure of this switch includes a base that can be mounted on a keyboard, a top cover that fits onto the base, a guide core disposed within the base and the top cover and extending upward through the top cover, a return spring with its upper end pressing against the guide core and its lower end pressing against the base, a permanent magnet disposed within the lower part of the guide core, and a Hall element disposed on an external circuit board and directly opposite the permanent magnet. The structure is characterized by further including a movable piece disposed on the side of the guide core and elastically bent downwards, and a stationary piece disposed below the movable piece. At least one ridge is formed on the side of the guide core. The movable piece includes at least one movable piece support arm extending laterally towards the ridge. Under the force of an external force pressing the guide core, the movable piece support arm is driven by the ridge to contact or separate from the stationary piece. The movable piece and the stationary piece are electrically connected to the external circuit board.

[0016] When an external force presses on the guide core, the guide core moves its protrusions and permanent magnet downwards, causing the lower end face of the moving plate arm, which is pressed against the protrusions, to press down against the stationary plate under its own elastic restoring force. This closes the circuit and transmits the start signal to the external circuit board, waking up the Hall element. The Hall element senses the descending permanent magnet and transmits the operation signal. When the external force removes from the guide core, the guide core moves its protrusions and permanent magnet upwards and resets under the action of the return spring. The protrusions lift the outermost part of the moving plate arm, separating it from the stationary plate. The circuit between the moving and stationary plates is broken, and the Hall element on the external circuit board remains dormant without receiving a start signal, thus saving power, reducing power consumption, increasing the usage time of the wireless keyboard, and facilitating user experience. By stacking the moving and stationary plates parallel to each other, the travel distance of the moving and stationary plates is very short, allowing the Hall element to be woken up before it senses the signal from the permanent magnet, ensuring timely and accurate signal transmission.

[0017] The above is an overview of the invention's technical solution. The invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0018] Figure 1 is an overall schematic diagram of the present invention;

[0019] Figure 2 is a schematic diagram of the present invention with the top cover removed;

[0020] Figure 3 is a schematic diagram of the structure of the guide core, moving plate, and stationary plate;

[0021] Figure 4 is a schematic diagram of the structure of the moving plate and the stationary plate;

[0022] Figure 5 is a schematic diagram of the moving plate;

[0023] Figure 6 is a schematic diagram of the static plate;

[0024] Figure 7 is a schematic diagram of the conductor core;

[0025] Figure 8 is an enlarged view of part A in Figure 6;

[0026] Figure 9 is a schematic diagram of the bottom surface of the conductor core;

[0027] In the diagram: 1. Base; 2. Top cover; 3. Guide core; 31. Protruding rib; 311. First driving guide slope; 312. Second driving guide slope; 32. Silent arm; 33. Buffer space; 34. Silent buffer platform; 4. Permanent magnet; 5. Hall element; 6. Moving plate; 61. Moving plate support arm; 611. Moving plate extension plate; 62. Moving plate body; 63. Moving plate pin; 7. Stationary plate; 71. Stationary plate body; 72. Stationary plate support arm; 721. Stationary plate extension plate; 73. Stationary plate pin; 731. First stationary plate pin; 732. Second stationary plate pin; 74. Stationary plate clearance slot; 8. Circuit board.

[0028] Detailed Implementation

[0029] To further illustrate the technical means and effects adopted by the present invention to achieve the intended purpose, the specific implementation of the present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments.

[0030] In the description of this invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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 invention.

[0031] 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 invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0033] Referring to Figures 1 to 9, this embodiment of the invention provides a magnetic shaft with a wake-up function, including a base 1 that can be mounted on a keyboard, an upper cover 2 that covers the base 1, a guide core 3 disposed within the base 1 and the upper cover 2 and extending upward through the upper cover 2, a return spring whose upper end abuts against the guide core 3 and whose lower end abuts against the base 1, a permanent magnet 4 disposed in the lower part of the guide core 3, and a Hall element 5 disposed on an external circuit board 8 and directly opposite the permanent magnet 4, and further including... A movable piece 6 is disposed on the side of the guide core 3 and is elastically bent downward as a whole, and a stationary piece 7 is disposed below the movable piece 6; at least one protrusion 31 is formed on the side of the guide core 3, and the movable piece includes at least one movable piece support arm 61 extending laterally in the direction of the protrusion 31. The movable piece support arm 61 is driven by the protrusion 31 to achieve contact or separation with the stationary piece 7 under the action of external force pressing the guide core 3. The movable piece 6 and the stationary piece 7 are respectively electrically connected to the circuit board 8 on the external wireless keyboard.

[0034] When an external force presses down on the guide core 3, the guide core 3 causes the protrusion 31 and permanent magnet 4 on it to move downwards. This causes the lower end face of the moving plate arm 61, which rests against the protrusion 31, to contact the stationary plate 7 under its own elastic restoring force, thus closing the circuit. This transmits a start signal to the external circuit board 8, waking up the Hall element 5. The Hall element 5 senses the descending permanent magnet 4, thus transmitting an operation signal. When the external force removes from the guide core 3, the guide core 3, driven by the return spring, moves the protrusion 31 and permanent magnet 4 upwards to reset. The protrusion 31 lifts the outermost part of the moving plate arm 61, separating it from the stationary plate. The circuit between the moving plate 6 and the stationary plate 7 is broken. The Hall element 5 on the external circuit board 8 remains dormant and non-conductive without receiving a start signal, thus saving power, reducing power consumption, increasing the usage time of the wireless keyboard, and facilitating user convenience. By stacking the moving plate 6 and the stationary plate 7 in parallel, the stroke of the moving plate 6 and the stationary plate 7 can be very short, thereby waking up the Hall element 5 before it senses the signal from the permanent magnet 4, ensuring timely and accurate signal transmission.

[0035] As shown in Figures 2 to 5, the moving piece 6 includes a moving piece body 62 and at least one moving piece pin 63 that is disposed on the moving piece body 62 and extends downward. The moving piece support arm 61 is disposed on the moving piece body 62, and the moving piece pin 63 is electrically connected to the external circuit board 8. The moving piece pin 63 is embedded in the circuit board 8 of the wireless keyboard, thereby realizing the electrical connection between the moving piece and the wireless keyboard circuit, realizing the transmission of the start signal, waking up the Hall element 5 disposed on the wireless keyboard circuit board 8, and the Hall element 5 senses the permanent magnet 4 to realize the transmission of the operation signal. The end of the moving piece body 62 away from the guide core 3 is pressed against the base 1, thereby fixing the position of the moving piece 6 and preventing the moving piece body 62 from being unable to separate from the stationary piece 7 when the guide core 3 moves upward due to the moving piece support arm 61 moving downward.

[0036] As shown in Figures 2 to 6, the static plate 7 includes a static plate body 71 located below the moving plate body 62, at least one static plate support arm 72 disposed on the static plate body 71 and extending laterally towards the protrusion 31, and at least one static plate pin 73 disposed on the static plate body 71 and extending downward as a whole. The static plate pin 73 is electrically connected to the external circuit board 8. Specifically, the static plate pin 73 is embedded in the circuit board 8 of the wireless keyboard, thereby realizing the electrical connection between the static plate 7 and the wireless keyboard circuit, realizing the transmission of the start signal, waking up the Hall element 5 disposed on the wireless keyboard circuit board 8, and the Hall element 5 senses the permanent magnet 4 to realize the transmission of the operation signal. The movable support arm 61 is driven by the protrusion 31 under the force of external pressure on the guide core 3 to make contact with or separate from the stationary support arm 72. Specifically, when the guide core 3 is pressed externally, the guide core 3 drives the protrusion 31 on it to move downward, so that the movable support arm 61, whose lower end face is pressed against the protrusion 31, touches the stationary support arm 72 downward under its own elastic restoring force, thereby realizing the closure of the circuit. And through the stationary pin 73 and the movable pin 63 embedded on the external circuit board 8, the start signal is transmitted to the circuit board 8 on the wireless keyboard or directly to the Hall element 5, thereby waking up the Hall element 5 and realizing the transmission of the operation signal. When the external force disengages from the guide core 3, the guide core 3, driven by the return spring, moves its protrusion 31 upwards and resets. The bandpass step lifts the outermost part of the moving plate support arm 61, thereby separating the moving plate support arm 61 from the stationary plate support arm 72. The circuit between the moving plate and the stationary plate is broken, and the Hall element 5 goes into sleep mode without conducting when it does not receive a start signal. This achieves the purpose of saving power, reducing power consumption, increasing the usage time of the wireless keyboard, and facilitating user experience. The end of the stationary plate body 71 away from the guide core 3 presses against the base 1, thereby fixing the position of the stationary plate 7 and preventing the stationary plate body 71 from shifting during operation, which would cause the moving plate support arm 61 to fail to conduct properly with the stationary plate support arm 72. This improves the conduction accuracy and efficiency of this structure.

[0037] Preferably, in order to improve the space utilization within the shaft body, as shown in Figures 2 to 4 and Figure 6, at least one stationary plate clearance groove 74 is formed on the stationary plate body 71 to accommodate the moving plate pin 63. By setting the stationary plate clearance groove 74 to accommodate the moving plate pin 63, the space occupied by the moving plate and the stationary plate within the shaft body is reduced, thereby improving the space utilization within the shaft body, making the shaft structure lighter and easier to use.

[0038] To prevent the guide core 3 from failing to properly drive the moving plate support arm 61 when external force presses on different positions of the guide core 3, as shown in Figures 2 to 6, there are 3 sets of moving plate support arms 61, 3 sets of stationary plate support arms 72 corresponding to the moving plate support arms 61, and 3 sets of protrusions 31 corresponding to the moving plate support arms 61. The moving plate support arms 61 are respectively the first set of moving plate support arms 61 located on the side of the guide core 3, the second set of moving plate support arms 61 located in the middle of the guide core 3, and the third set of moving plate support arms 61 located on the other side of the guide core 3. This ensures that no matter which position of the guide core 3 is pressed by external force, the protrusions 31 on the guide core 3 can drive the moving plate support arm 61 to contact or separate from the stationary plate support arm 72.

[0039] Preferably, as shown in Figures 2 to 5, the two sets of movable plate support arms 61 disposed on the side are respectively provided with a movable plate extension plate 611 extending laterally in the direction of the protrusion 31. This facilitates the protrusion 31 to drive the two sets of movable plate support arms 61 disposed on the side through the movable plate extension plate 611. Consequently, the movable plate support arms 61 are driven by the protrusion 31 under the action of external force pressing the guide core 3 to achieve contact or separation with the stationary plate support arm 72. This improves the efficiency and accuracy of the guide core 3 in driving the movable plate support arms 61 and facilitates the cooperation between the components.

[0040] Preferably, as shown in Figures 3 to 4 and Figure 6, the two sets of stationary plate support arms 72 disposed on the side are respectively provided with a stationary plate extension plate 721 that extends laterally in the direction of the protrusion 31 and is directly opposite to the moving plate extension plate 611. This facilitates the moving plate extension plate 611 to abut against the stationary plate extension plate 721, thereby realizing the conduction between the moving plate and the stationary plate and facilitating the cooperation between the components.

[0041] Preferably, as shown in Figure 7, in order to better drive the movable plate support arm 61, the upper end of the protrusion 31 is formed with a first driving guide slope 311 extending obliquely from the inner upper to the outer lower. When the external force disengages from the guide core 3, the guide core 3 moves the protrusion 31 upward and resets under the drive of the return spring in the shaft body. The first driving guide slope 311 on the through step first contacts the movable plate support arm 61, so that the movable plate support arm 61 fits against the protrusion 31 under the oblique guiding action of the first driving guide slope 311, so that the protrusion 31 better drives the movable plate support arm 61, improving the efficiency and accuracy of the guide core 3 driving the movable plate support arm 61, and facilitating the cooperation between the components.

[0042] The movable support arm 61 can be fixed against the protrusion 31, or it can be bent downwards and detached from the protrusion 31 under its own elastic restoring force when the guide core 3 is pressed, and then driven by the protrusion 31 again when the guide core 3 moves upwards. Alternatively, the movable support arm 61 can be set horizontally, and the protrusion 31 can bend the movable support arm 61 downwards during the pressing process, so that the movable support arm 61 contacts the stationary support arm 72. When the protrusion 31 moves upwards, the movable support arm 61 returns to its horizontal setting under its own elastic restoring force, thus separating from the stationary support arm 72. Or any other method can be used to achieve the contact or separation of the movable support arm 61 with the stationary support arm 72 by being driven by the protrusion 31. It can be set according to the actual situation, so no specific limitation is made in this embodiment.

[0043] Preferably, as shown in Figure 7, if the moving plate support arm 61 is arranged laterally, the protrusion 31 will bend the moving plate support arm 61 downwards during the pressing process, thereby making the moving plate support arm 61 contact with the stationary plate support arm 72. When the protrusion 31 moves upwards, the moving plate support arm 61 will return to its lateral arrangement under its own elastic restoring force, thus separating from the stationary plate support arm 72. The lower end of the protrusion 31 can form a second driving guide slope 312 extending inclined from the outer upper direction to the inner lower direction. When the external force presses down on the guide core 3, the second driving guide slope 312 will first contact the moving plate support arm 61. The moving plate support arm 61 will fit more closely to the protrusion 31 under the inclined guiding effect of the second driving guide slope 312, and will be pressed downwards by the protrusion 31 until it contacts and conducts with the stationary plate support arm 72, thereby improving the efficiency and accuracy of the guide core 3 driving the moving plate support arm 61 and facilitating the cooperation between the components.

[0044] To achieve a silent operation, as shown in Figure 9, at least one silent arm 32 that can be elastically bent and reset is formed at the middle and lower ends of the guide core 3. A buffer space 33 is formed between the silent arm 32 and the guide core 3 for the silent arm 32 to move. When the guide core 3 moves downward, the silent arm 32 located at the lower end of the guide core 3 first contacts the inner wall of the base 1. Under the downward impact force, the silent arm 32 located at the lower end of the guide core 3 bends into the buffer space 33, thereby buffering the impact force and reducing the noise generated by the guide core 3 hitting the base 1, thus achieving the purpose of silence and improving the user experience. When the guide core 3 is moved upward and reset by the reset spring, the silent arm 32 located in the middle of the guide core 3 first contacts the inner wall of the upper cover 2. Under the upward impact force, the silent arm 32 located in the middle of the guide core 3 bends into the buffer space 33, thereby buffering the impact force and reducing the noise generated by the guide core hitting the upper cover 2, thereby achieving the purpose of silence and further improving the user experience.

[0045] Preferably, as shown in Figure 9, the silent arms 32 are in four groups, which are respectively arranged on both sides of the lower end of the guide core 3 and on both sides of the upper end of the guide core 3 near the middle, so that the buffering force on the guide core 3 is more uniform and the silent effect of the shaft structure is further improved.

[0046] To better buffer the downward impact force of the silent arm 32, as shown in Figure 9, a trapezoidal, outwardly protruding silent buffer platform 34 is formed on the outermost side of the silent arm 32. When the guide core 3 moves downward, the silent buffer platform 34 first contacts the inner wall of the base 1, and then the silent arm 32 bends towards the buffer space 33, thereby buffering the impact force and reducing the noise generated by the guide core 3 hitting the base 1, thus achieving the purpose of silence and further improving the user experience. When the guide core 3 is moved upward and reset by the reset spring, the silent buffer platform 34 first contacts the inner wall of the top cover 2, and then the silent arm 32 bends towards the buffer space 33, thereby buffering the impact force and reducing the noise generated by the guide core 3 mounting the top cover 2, thus achieving the purpose of silence and further improving the user experience.

[0047] Preferably, as shown in Figures 3 and 9, to further improve the space utilization within the shaft body, the stationary plate pin 73 includes a first stationary plate pin 731 that bends downward from the stationary plate body 71, and a second stationary plate pin 732 that is disposed on the lower side of the first stationary plate pin 731 and bends downward towards the guide core 3. The second stationary plate pin 732 is positioned to accommodate the mute arm 32. By setting the second stationary plate pin 732 to bend entirely towards the guide core 3, it makes way for the mute arm 32 located at the lower end of the guide core and other structures within the base 1, facilitating the cooperation between components. This results in a smaller space occupied by the stationary plate and the guide core 3 within the shaft body structure, improving the space utilization of the shaft body structure, making the shaft body structure lighter, and facilitating production and use.

[0048] It should be noted that the magnetic shaft with wake-up function disclosed in this invention is an improvement on the specific structure, but the specific control method is not an innovation of this invention. The base, top cover, permanent magnet, circuit board, Hall element, and other components involved in this invention can be general standard parts or components known to those skilled in the art. Their structure, principle, and control method are all known to those skilled in the art through technical manuals or conventional experimental methods.

[0049] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the technical scope of the present invention. Therefore, other structures obtained by using the same or similar technical features as the above embodiments of the present invention are all within the protection scope of the present invention.

Claims

1. A magnetic shaft with a wake-up function, comprising a base, an upper cover fitted onto the base, a guide core disposed within the base and the upper cover and extending upward through the upper cover, a return spring with its upper end pressing against the guide core and its lower end pressing against the base, a permanent magnet disposed at the lower end of the guide core, and a Hall element, characterized in that: It also includes a movable piece disposed on the side of the guide core and a stationary piece disposed below the movable piece; at least one protrusion is formed on the side of the guide core, and the movable piece includes at least one movable piece support arm extending laterally in the direction of the protrusion. Under the force of pressing the guide core, the movable piece support arm is driven by the protrusion to achieve contact or separation with the stationary piece, thereby controlling the conduction and disconnection of the Hall element, thereby waking up or putting the Hall element into sleep mode. After the Hall element is awakened, it senses the descending permanent magnet; the movable piece and the stationary piece are electrically connected to an external circuit board, and the movable piece and the stationary piece are stacked one on top of the other.

2. The magnetic shaft with wake-up function according to claim 1, characterized in that: The moving piece also includes a moving piece body and a moving piece pin integrally formed on the moving piece body. The moving piece support arm is disposed on the moving piece body, and the moving piece pin is electrically connected to an external circuit board.

3. The magnetic shaft with wake-up function according to claim 2, characterized in that: The stationary plate includes a stationary plate body located below the moving plate body, at least one stationary plate support arm disposed on the stationary plate body and extending laterally in the direction of the protrusion, and a stationary plate pin disposed on the stationary plate body and integrally formed thereon. The stationary plate pin is electrically connected to an external circuit board. The moving plate support arm is driven by the protrusion under the force of an external force pressing the core to achieve contact or separation with the stationary plate support arm.

4. The magnetic shaft with wake-up function according to claim 3, characterized in that: At least one stationary relief groove is formed on the stationary plate body to accommodate the moving plate pin.

5. The magnetic shaft with wake-up function according to claim 3, characterized in that: The number of moving plate arms, the number of stationary plate arms, and the number of protrusions correspond one-to-one.

6. The magnetic shaft with wake-up function according to claim 1, characterized in that: At least one silencing arm that can be elastically bent and reset is formed at the middle and lower ends of the guide core, and a buffer space is formed between the silencing arm and the guide core for the silencing arm to move.

7. The magnetic shaft with wake-up function according to claim 6, characterized in that: The outermost side of the silent arm has an outwardly protruding silent buffer platform.

8. The magnetic shaft with wake-up function according to claim 6, characterized in that: The stationary pin includes a first stationary pin that bends downward from the stationary pin body, and a second stationary pin that is disposed on the lower side of the first stationary pin and bends downward in the direction of the guide core. The second stationary pin gives way to the mute arm disposed at the lower end of the guide core.

Citation Information

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