Magnetic induction key structure and keyboard

Abstract

The application provides a magnetic induction key structure and a keyboard, comprising a key cap, a base, a scissor leg assembly, a circuit board and an induction assembly, the scissor leg assembly is rotationally connected between the key cap and the base, and is used for guiding the vertical movement of the key cap relative to the base, the circuit board is arranged on the side of the base away from the key cap, the induction assembly comprises a magnet and a Hall sensor, the magnet is fixed to the key cap in an integrated manner, and the Hall sensor is electrically connected to the circuit board and is arranged in correspondence with the magnet along the movement direction of the key cap. The magnetic induction key structure provided by the application solves the technical problem that the response of the keyboard key in the prior art has inherent delay, improves the response speed and reliability of the key, and improves the operation experience of the user.

Description

Technical Field

[0001] This application belongs to the field of keyboard key technology, and more specifically, relates to a magnetic induction key structure and a keyboard. Background Technology

[0002] Keyboards are commonly used input devices, and their response speed directly affects the user experience. Especially in scenarios such as high-speed typing or gaming, key response latency is a key factor affecting keyboard performance.

[0003] Traditional keyboard keys (such as mechanical keyboards) mostly use physical contacts to trigger signals. However, this method relies on the contact and separation of metal contacts, which has an inherent delay due to mechanical inertia, reducing response speed and affecting the user's operating experience. Utility Model Content

[0004] The purpose of this application is to provide a magnetic induction key structure and keyboard to solve the technical problem of inherent delay in keyboard key response in the prior art.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: a magnetic induction key structure is provided, including a keycap, a base, a scissor-switch assembly, a circuit board, and a sensing component. The scissor-switch assembly is rotatably connected between the keycap and the base to guide the keycap to move vertically relative to the base. The circuit board is located on the side of the base away from the keycap. The sensing component includes a magnet and a Hall sensor. The magnet is fixed to the keycap by an integral connection, and the Hall sensor is electrically connected to the circuit board and is arranged corresponding to the magnet along the direction of movement of the keycap.

[0006] In an alternative embodiment, the magnet is built into the keycap and is covered by the keycap.

[0007] In one alternative embodiment, a magnet is injection molded and embedded in the keycap.

[0008] In one optional embodiment, the scissor-switch assembly includes a first rotating member and a second rotating member that are cross-hinged. One end of the first rotating member is rotatably connected to the keycap, and the other end of the first rotating member is rotatably connected to the base. One end of the second rotating member is rotatably connected to the base, and the other end of the second rotating member is connected to the keycap. The key structure also includes an elastic reset member, which is disposed between the keycap and the base and is used for the elastic reset of the keycap.

[0009] In one optional embodiment, the first rotating member has a clearance space in the middle for the second rotating member to be inserted; the second rotating member has a through hole in the middle, and the elastic reset member partially passes through the through hole and is connected to the base.

[0010] In one optional embodiment, mounting holes are provided on both sides of the clearance space, and rotating parts are provided on the two outer side walls of the second rotating member, which are rotatably inserted into the mounting holes.

[0011] In one alternative embodiment, the resilient reset member includes a base, a supporting portion, and an inclined portion connecting the base and the supporting portion. The base is fixed to the base, and the supporting portion protrudes upward and abuts against the keycap.

[0012] In one alternative embodiment, a flexible membrane is provided on the side of the base facing the keycap, and the elastic reset member is fixed to the flexible membrane by adhesive.

[0013] In one alternative embodiment, the base is made of aluminum.

[0014] Another objective of this application is to provide a keyboard, including a panel and a plurality of magnetic induction key structures disposed on the panel, wherein the magnetic induction key structures are as described above.

[0015] The beneficial effects of the magnetic induction key structure and keyboard provided in this application are as follows: Compared with the prior art, the magnetic induction key structure of this application integrates a magnet on the keycap, making the magnet and the keycap a whole, thus avoiding the magnet from loosening or shifting under long-term vibration or impact; the magnet, together with the Hall sensor set on the circuit board, uses the change of magnetic field to achieve non-contact triggering, and judges the key action by detecting the change of magnetic field. The whole process does not require physical contact, avoiding the mechanical stroke and reaction time required for the metal contact to close, significantly reducing response delay, improving the response speed and reliability of the key, and improving the user's operating experience. It is particularly suitable for application scenarios with high requirements for response speed, such as high-speed typing and games. 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 schematic diagram of the magnetic induction button structure provided in the embodiments of this application. Figure 1 ; Figure 2 This is an exploded view of the magnetic induction button structure provided in the embodiments of this application; Figure 3 This is a cross-sectional view of the magnetic induction button structure provided in an embodiment of this application; Figure 4 A partial structural diagram of the magnetic induction button structure provided in the embodiments of this application. Figure 1 ; Figure 5 Exploded view of a portion of the magnetic induction button structure provided in the embodiments of this application. Figure 1 ; Figure 6 A partial structural diagram of the magnetic induction button structure provided in the embodiments of this application. Figure 2 ; Figure 7 Exploded view of a portion of the magnetic induction button structure provided in the embodiments of this application. Figure 2 .

[0018] The following are the labeling elements in the figure: 100 - Magnetic induction key structure; 10 - Keycap; 11 - Rotating base; 20 - Base; 30 - Scissor-switch assembly; 31 - First rotating component; 311 - Clearance space; 312 - Mounting hole; 32 - Second rotating component; 321 - Through hole; 322 - Rotating part; 40 - Circuit board; 51 - Magnet; 60 - Elastic reset component; 61 - Base; 62 - Supporting part; 63 - Inclined part; 70 - Flexible membrane. 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", "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 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] Keyboards are commonly used input devices, and their response speed directly affects the user experience. Especially in scenarios such as high-speed typing or gaming, key response latency is a key factor affecting keyboard performance.

[0024] Traditional keyboard keys (such as mechanical keyboards) mostly use physical contacts to trigger signals. However, this method relies on the contact and separation of metal contacts, which has an inherent delay due to mechanical inertia. Furthermore, long-term use can lead to contact wear and oxidation, affecting reliability. In addition, contact bounce can occur during key presses, causing signal jitter and requiring additional debouncing, further increasing response time.

[0025] Please refer to the following: Figures 1 to 7 The magnetic induction button structure 100 provided in this application embodiment will now be described. The magnetic induction button structure 100 includes a keycap 10, a base 20, a scissor-switch assembly 30, a circuit board 40, and a sensing component (not shown in the figure). The scissor-switch assembly 30 is rotatably connected between the keycap 10 and the base 20 to guide the keycap 10 to move vertically relative to the base 20. The circuit board 40 is located on the side of the base 20 away from the keycap 10. The sensing component includes a magnet 51 and a Hall sensor (not shown in the figure). The magnet 51 is fixed to the keycap 10 by an integral connection. The Hall sensor is electrically connected to the circuit board 40 and is arranged corresponding to the magnet 51 along the moving direction of the keycap 10.

[0026] The keycaps 10 are the parts that users directly press, and their surfaces can be decorated with markings and anti-slip textures. The base 20 is the base that supports the key structure and is used to support the scissor-switch assembly 30 and the circuit board 40. The base 20 can be manufactured using injection molding or stamping processes.

[0027] The scissor-switch assembly 30 is a mechanical structure composed of cross-hinged rotating parts, which can be made of metal or high-strength plastic. It guides the keycap 10 to move vertically, achieving stable guidance and preventing tilting or offset. Vertical movement refers to the movement of the keycap 10 in a direction perpendicular to the base 20. The scissor-switch assembly 30 may also include a spring element to allow the keycap 10 to return to its original position after being pressed. Alternatively, an additional spring element can be provided to cooperate with the scissor-switch assembly 30 for return.

[0028] Circuit board 40 refers to the substrate on which electronic components are mounted, used to transmit electrical signals detected by the Hall sensor. Specifically, it can be a printed circuit board 40 or a flexible circuit board 40, etc.

[0029] The sensing components include a magnet 51 and a Hall sensor. The magnet 51 is a permanent magnet that generates a magnetic field, which can be made of neodymium iron boron or ferrite material. It triggers a signal by changing the magnetic field. The Hall sensor is an element that detects the strength of the magnetic field. It can be made of linear or switching Hall chip and converts the change in magnetic flux into an electrical signal output.

[0030] The magnet 51 is integrally connected to the keycap 10, which can be achieved through injection molding, welding, gluing, or other processes to ensure that the magnet 51 is stably positioned and without gaps. In some embodiments, the magnet 51 is located on the side of the keycap 10 near the base 20 to better cooperate with the Hall sensor.

[0031] The integrated connection makes the magnet 51 and the keycap 10 a single unit, preventing the magnet 51 from loosening or shifting under long-term vibration or impact, and ensuring the stability of the magnetic field. The fixed position of the magnet 51 ensures that the magnetic field changes consistently with each press, improving trigger accuracy. In addition, the keycap 10 part with the magnet 51 can be prefabricated for subsequent assembly, improving production and assembly efficiency.

[0032] Furthermore, the Hall sensor is soldered onto the surface of the circuit board 40, which facilitates mass surface mount production and testing. The Hall sensor and the magnet 51 correspond in the moving direction of the keycap 10, that is, the positions of the magnet 51 and the Hall sensor are matched on the vertical moving path. The rotation constraint of the scissor-foot assembly 30 ensures the alignment accuracy of the magnet 51 and the Hall sensor, ensuring that changes in the magnetic field can be effectively detected.

[0033] It adopts a non-contact magnetic induction triggering mechanism, which eliminates the physical contact of traditional mechanical contacts by the vertical correspondence between magnet 51 and Hall sensor, thereby solving the problems of signal delay, wear and bounce, while improving the button response speed and reliability.

[0034] When the user presses the keycap 10, the scissor-switch assembly 30 guides the keycap 10 to move vertically downward. As the keycap 10 moves downward, the magnet 51 fixed on the keycap 10 also moves closer to the Hall sensor. The Hall sensor detects the change in magnetic field strength and outputs a corresponding electrical signal to the circuit board 40. The circuit board 40 receives and processes the signal, triggering the key action.

[0035] After the keycap 10 is released, the scissor-switch assembly 30 guides the keycap 10 back to its initial position, the magnet 51 moves away from the Hall sensor, and the magnetic field strength returns to its initial state. The Hall sensor detects the change in magnetic field and outputs a corresponding signal, which is processed by the circuit board 40 to complete the key release action. Throughout the entire process, the magnet 51 and the Hall effect sensor remain in a non-contact state, achieving key detection without mechanical wear.

[0036] The combination of magnet 51 and Hall sensor enables real-time, continuous displacement detection with fast response speed, significantly improving latency issues. The scissor-switch assembly 30 ensures the vertical movement of keycap 10, guaranteeing the relative positional relationship between magnet 51 and Hall sensor, thus improving detection accuracy and consistency. Furthermore, the magnetic field sensing is unaffected by contact oxidation or loosening, maintaining consistent triggering performance even after long-term use.

[0037] Since the magnetic field is continuously changing, the trigger threshold of the Hall sensor can be adjusted. For example, by setting the magnetic field trigger threshold of the Hall sensor through software, users can customize the button to be triggered at different positions such as 1.0mm, 1.5mm, and 2.0mm, further improving the operation response speed and adapting to different scenarios such as typing and gaming.

[0038] The magnetic induction key structure 100 provided in this application embodiment, compared with the prior art, integrates a magnet 51 onto the keycap 10, making the magnet 51 and the keycap 10 a whole. This avoids the magnet 51 from loosening or shifting under long-term vibration or impact. The magnet 51, in conjunction with a Hall sensor on the circuit board 40, uses changes in the magnetic field to achieve non-contact triggering. The key action is determined by detecting changes in the magnetic field. The entire process does not require physical contact, avoiding the mechanical travel and reaction time required for metal contact closure, significantly reducing response delay, improving key response speed and reliability, and enhancing the user's operating experience. It is particularly suitable for application scenarios with high response speed requirements, such as high-speed typing and gaming.

[0039] Please refer to some embodiments of this application. Figure 3 Magnet 51 is built into the keycap 10 and is covered by the keycap 10.

[0040] The magnet 51 is covered and fixed by the body material of the keycap 10 from multiple directions. The magnet 51 is completely built into the keycap 10 and is not exposed on the surface, forming an integral structure that is not detachable with the keycap 10.

[0041] The specific embedding method can be one-piece injection molding; or two-stage injection molding, first injection molding the keycap 10 base with cavity, then inserting the magnet 51 and performing a second injection molding to seal it; or overmolding, pressing the magnet 51 into the blind hole inside the keycap 10 and then sealing it with glue.

[0042] The magnet 51 is completely embedded inside the keycap 10, forming a sealed structure. As a result, there are no gaps or gaps between the magnet 51 and the keycap 10, effectively preventing dust, moisture and other impurities from entering the keycap 10.

[0043] This design achieves an integrated structure between magnet 51 and keycap 10, which not only avoids the key loosening problem that may be caused by traditional external magnetic sheets, but also ensures the accuracy and stability of magnet 51's position, thus improving the consistency and reliability of the Hall sensor's detection signal. Furthermore, the embedded design makes the key appearance more concise and aesthetically pleasing, enhancing the user experience.

[0044] In some embodiments, a waterproof coating may be applied to the surface of the keycap 10 near the magnet 51 to further enhance waterproof performance.

[0045] In some embodiments of this application, the magnet 51 is injection molded and embedded in the keycap 10.

[0046] Magnet 51 is embedded in keycap 10 through in-mold injection molding. During the injection molding process of keycap 10, magnet 51 is precisely placed in the mold cavity. Molten plastic fills the cavity under high pressure and wraps around the periphery of magnet 51. After solidification, it forms a gapless sealed structure that is dustproof and waterproof, while avoiding the problem of key loosening caused by external magnetic sheet.

[0047] Furthermore, by pre-embedding magnets 51 through in-mold injection molding, magnets 51 can be directionally magnetized using a pulsed magnetic field later. This allows for controllable adjustment of magnetic flux density to adapt to different linear or tactile feedback designs, achieving triggering requirements for varying button heights and travel distances. For example, increasing magnetic flux density can enhance tactile feedback, while decreasing it can achieve a lighter button feel.

[0048] This design also ensures consistent distance between magnet 51 and the Hall sensor, reducing signal drift and improving anti-interference capabilities.

[0049] In production, in-mold injection molding enables the assembly of magnet 51 to be automated, reducing manual operation and standardizing mass production.

[0050] Please refer to some embodiments of this application. Figures 1 to 7 The scissor-switch assembly 30 includes a first rotating member 31 and a second rotating member 32 that are cross-hinged. One end of the first rotating member 31 is rotatably connected to the keycap 10, and the other end of the first rotating member 31 is rotatably connected to the base 20. One end of the second rotating member 32 is rotatably connected to the base 20, and the other end of the second rotating member 32 is connected to the keycap 10. The key structure also includes an elastic reset member 60, which is disposed between the keycap 10 and the base 20 and is used for the elastic reset of the keycap 10.

[0051] The first rotating member 31 and the second rotating member 32 can be rotatably connected by a pivot or a hinge. The rotatable connection between the first rotating member 31 and the second rotating member 32 and the keycap 10 and the base 20 can be via a pivot, a hinge structure, or something similar. Figure 4-7 As shown, a rotating column is provided on the main body, and a rotating seat 11 is provided on the keycap 10 or the base 20. Holes are provided on the rotating seat 11 so that the rotating column can be inserted and rotated.

[0052] When the user presses the keycap 10, the scissor-switch assembly 30 guides the keycap 10 to press down smoothly in the vertical direction through the synchronous rotation of two sets of linkages, avoiding the keycap 10 from tilting, shaking or getting stuck, and achieving precise linear motion guidance.

[0053] The scissor-switch assembly 30 forms a mechanical constraint through a cross-hinged structure, forcing the keycap 10 to move only vertically, effectively preventing possible lateral wobbling or tilting, and improving the consistency of key feel and operational precision.

[0054] A resilient reset element 60 is also provided, which is disposed between the keycap 10 and the base 20, specifically in the middle or lower region of the scissor-switch assembly 30. The resilient reset element 60 can be a component with elastic recovery capability, such as a rubber part, a metal spring, or a spring.

[0055] When the key is not pressed, the elastic reset element 60 is in its natural state. When the keycap 10 is pressed down, the elastic reset element 60 undergoes elastic deformation and stores potential energy. When the external force is removed, the elastic reset element 60 releases energy, pushing the keycap 10 upward to reset, completing the rebound process of one key press. By configuring an independent elastic reset element 60, it is ensured that the keycap 10 can reliably reset after the key press is completed.

[0056] Please refer to some embodiments of this application. Figure 5 and Figure 7 The first rotating member 31 has a clearance space 311 in the middle for the second rotating member 32 to be inserted; the second rotating member 32 has a through hole 321 in the middle, and the elastic reset member 60 partially passes through the through hole 321 and is connected to the base 20.

[0057] The clearance space 311 provides a accommodating area for the second rotating member 32, preventing the first rotating member 31 and the second rotating member 32 from colliding or rubbing against each other during movement.

[0058] The second rotating member 32 can be rotatably connected to the side wall of the clearance space 311. For example, holes can be opened in the clearance space 311 or the second rotating member 32, and a rotating column can be protruded on another part so that it can be rotatably inserted into the mounting hole 312 to form a stable rotation fulcrum.

[0059] The through hole 321 is located in the middle of the second rotating member 32, allowing part of the structure of the elastic reset member 60 to pass through, ensuring that the elastic reset member 60 is not blocked by the second rotating member 32 during vertical movement.

[0060] By utilizing the clearance space 311 and the through hole 321, the movement path of the elastic reset component 60 is separated from the rotation path of the scissor-switch assembly 30, avoiding structural interference, ensuring uniform transmission of the elastic reset force, and improving the stability of button triggering and the reset response speed. This design achieves a compact integration of the scissor-switch assembly 30 and the elastic reset component 60, reducing the overall height of the button structure.

[0061] Meanwhile, the design of the elastic reset member 60 passing through the second rotating member 32 ensures stable transmission of the reset force, improving the button's tactile feel and durability. Furthermore, the clearance space 311 allows the first rotating member 31 and the second rotating member 32 to fit together tightly, reducing mechanical clearance and improving button accuracy and response speed.

[0062] Please refer to some embodiments of this application. Figures 4 to 7 Mounting holes 312 are provided on both sides of the clearance space 311, and rotating parts 322 are provided on the two outer side walls of the second rotating member 32. The rotating parts 322 are rotatably inserted into the mounting holes 312.

[0063] Mounting holes 312 are formed on the side walls of the clearance space 311, creating symmetrically distributed circular through holes 321. The rotating part 322 is a cylindrical protrusion with a diameter that matches or is slightly smaller than the inner diameter of the mounting hole 312. After the rotating part 322 is inserted into the mounting hole 312, the hole wall circumferentially limits the rotating part 322, restricting the lateral displacement of the second rotating member 32, thus completing the rotational connection between the second rotating member 32 and the first rotating member 31.

[0064] When the keycap 10 is pressed down, the first rotating member 31 and the second rotating member 32 rotate relative to each other in the clearance space 311, and the rotating part 322 rotates in the mounting hole 312, realizing the synchronous movement of the scissor-switch assembly 30.

[0065] The rotating part 322 and the mounting hole 312 form a stable rotating pair, so that the scissor foot assembly 30 only produces linear movement in the vertical direction, reducing the interference of non-axial force on the elastic reset member 60.

[0066] This achieves a stable connection and flexible rotation between the first rotating component 31 and the second rotating component 32, improving the lifespan of the buttons and the smoothness of operation.

[0067] Please refer to some embodiments of this application. Figure 2 and Figure 3The elastic reset member 60 includes a base 61, a supporting part 62, and an inclined part 63 connecting the base 61 and the supporting part 62. The base 61 is fixed to the base 20, and the supporting part 62 protrudes upward and abuts against the keycap 10.

[0068] The inclined portion 63, also known as the inclined sidewall, causes the supporting portion 62 to be subjected to a vertically downward force when the keycap 10 is pressed down. The inclined portion 63 then undergoes elastic deformation and expands outwards. At this time, the base 61 remains fixedly connected to the base 20, preventing the reset component from shifting as a whole. When the external force is removed, the elastic restoring force of the inclined portion 63 is transmitted to the keycap 10 through the supporting portion 62, pushing the keycap 10 back to its original position.

[0069] Since the inclined part 63 is a continuous inclined surface structure, the distribution of the reset force is uniformly transmitted along the length of the side wall, avoiding the breakage of the reset part or the detachment of the base 20 connection caused by local stress concentration.

[0070] The base 61 and the base 20 can be fixedly connected by welding or gluing. In addition, an anti-slip silicone layer can be provided between the contact surface of the supporting part 62 and the keycap 10 to further prevent relative sliding during the reset process.

[0071] like Figure 2 and Figure 3 In some embodiments, the elastic reset member 60 is bowl-shaped and made of rubber, capable of elastic deformation when the keycap 10 is pressed and quickly returning to its original shape upon release, thereby achieving the elastic reset of the keycap 10. The elastic reset member 60 acts as a buffer layer, reducing key impact noise during keystrokes. The sloping sidewall design increases the deformation space of the elastic reset member 60, resulting in better tactile feedback and rebound performance, enhancing the user's operating experience.

[0072] Please refer to some embodiments of this application. Figures 1 to 4 The base 20 has a flexible membrane 70 on the side facing the keycap 10, and the elastic reset member 60 is fixed to the flexible membrane 70 by adhesive.

[0073] A flexible membrane 70 covers the surface of the base 20, and its material can be a polyester film. The elastic reset member 60 is fixed to the flexible membrane 70 by adhesive, which can be hot melt adhesive or pressure-sensitive adhesive. A uniform adhesive layer is formed by a coating process, and the base 61 of the elastic reset member 60 is bonded to the flexible membrane 70 through the adhesive layer.

[0074] The flexible membrane 70 has a smooth, dense surface and good chemical stability. The flexible membrane 70 can provide a flat bonding interface, which can improve the bonding reliability of the elastic reset member 60.

[0075] During the button pressing process, the inclined portion 63 of the elastic reset member 60 deforms. The flexible membrane 70 has a certain degree of flexibility and tensile strength, and can act as a buffer layer to absorb some of the deformation energy, reduce the mechanical stress directly transmitted to the adhesive layer, and prevent fatigue cracking of the adhesive layer.

[0076] In some embodiments of this application, the base 20 is made of aluminum.

[0077] The base 20 can be manufactured by stamping, and the material can be aluminum. A bending and flanging structure can be provided on the base 20 (e.g., ...). Figure 5 (as shown), so as to rotate and engage with the first rotating member 31 and the second rotating member 32.

[0078] The aluminum base 20 meets the keyboard's structural requirements for resistance to bending, torsion, and impact. Simultaneously, it effectively avoids interference with the magnetic flux of the magnetic induction components, ensuring that the Hall sensor can stably detect changes in the magnetic field signal.

[0079] This application provides a keyboard, including a panel and a plurality of magnetic induction key structures 100 disposed on the panel, wherein the magnetic induction key structures 100 are as described above.

[0080] The panel supports multiple magnetic induction button structures 100. These magnetic induction buttons can be arranged in an array on the panel, which provides uniform support to ensure consistent button travel.

[0081] The magnetic induction key structure 100 enables non-contact key signal triggering. The electrical signal generated by the change in magnetic flux directly reflects the key travel, thereby reducing response delay, improving key response speed, enhancing user experience, and making the keyboard suitable for applications with high response speed requirements, such as high-speed typing and gaming.

[0082] 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 magnetic induction button structure, characterized in that, include: keycap; Base; A scissor-switch assembly is rotatably connected between the keycap and the base, used to guide the keycap to move vertically relative to the base; A circuit board is located on the side of the base opposite to the keycap; as well as The sensing component includes a magnet and a Hall sensor. The magnet is fixed to the keycap by an integral connection, and the Hall sensor is electrically connected to the circuit board and is arranged corresponding to the magnet along the moving direction of the keycap.

2. The magnetic induction button structure as described in claim 1, characterized in that, The magnet is built into the keycap and is covered by the keycap.

3. The magnetic induction button structure as described in claim 2, characterized in that, The magnet is injection molded and embedded in the keycap.

4. The magnetic induction button structure as described in claim 1, characterized in that, The scissor-switch assembly includes a first rotating member and a second rotating member that are cross-hinged. One end of the first rotating member is rotatably connected to the keycap, and the other end of the first rotating member is rotatably connected to the base. One end of the second rotating member is rotatably connected to the base, and the other end of the second rotating member is connected to the keycap. The key structure also includes an elastic reset component, which is disposed between the keycap and the base and is used for the elastic reset of the keycap.

5. The magnetic induction button structure as described in claim 4, characterized in that, The first rotating member has a clearance space in the middle for the second rotating member to be inserted; the second rotating member has a through hole in the middle, and the elastic reset member partially passes through the through hole and is connected to the base.

6. The magnetic induction button structure as described in claim 5, characterized in that, Mounting holes are provided on both sides of the clearance space, and rotating parts are provided on the two outer side walls of the second rotating member. The rotating parts are rotatably inserted into the mounting holes.

7. The magnetic induction button structure as described in claim 4, characterized in that, The elastic reset member includes a base, a supporting portion, and an inclined portion connecting the base and the supporting portion. The base is fixed to the base, and the supporting portion protrudes upward and abuts against the keycap.

8. The magnetic induction button structure as described in claim 4, characterized in that, The base has a flexible membrane on the side facing the keycap, and the elastic reset member is fixed to the flexible membrane by adhesive.

9. The magnetic induction button structure as described in any one of claims 1 to 8, characterized in that, The base is made of aluminum.

10. A keyboard, characterized in that, It includes a panel and a plurality of magnetic induction button structures disposed on the panel, wherein the magnetic induction button structures are magnetic induction button structures as described in any one of claims 1 to 9.

Images