Keyboard, key, central spindle of key, notebook computer and electronic equipment

Abstract

The utility model provides a keyboard, a key and a shaft core, a magnetic piece or a conductive piece is arranged on the key, and the magnetic piece or the conductive piece rotates relative to a magnetic sensor or an inductance element when the magnetic piece or the conductive piece moves towards the magnetic sensor or the inductance element along with pressing. The beneficial effects of the utility model are that the key induction sensitivity and the input stability are improved.

Description

Technical Field

[0001] This utility model relates to switch control technology using electromagnetic induction, and to improvements in induction sensitivity and input stability, in order to improve the input stability of laptops, electronic devices, keyboards, etc., and to structural improvements of keyboards, keys, and switches. Background Technology

[0002] Using electromagnetic induction to control switches is a relatively efficient control method that has been increasingly applied in electronic products, such as keyboards, laptops, and other electronic devices requiring key presses. This can be achieved using magnetic axis switches (also known as Hall effect switches) or inductive axis switches. According to the principle of electromagnetic induction, to switch on / off, a magnetic component or conductor must be moved relative to a magnetic sensor or inductive element.

[0003] In existing magnetic shaft switches, the magnetic component is fixed to the shaft core. For example, in Reference 1, the magnet is pasted on the shaft core and can move toward the magnetic sensor (Hall element) as the shaft core moves. In Reference 2, the magnet is connected to the shaft core by an interference fit and can move toward the magnetic sensor (Hall element) as the shaft core moves.

[0004] In existing inductive shaft switches, the trigger element that cooperates with the inductive element is also fixed on the shaft core. For example, in reference 3, the trigger element (metal post) is also connected to the bottom of the shaft core (guide post) by plugging, and can move towards the inductive element as the shaft core moves; in reference 4, the trigger element (magnetic core) is also connected to the bottom of the shaft core by plugging, and can move towards the inductive element as the shaft core moves.

[0005] Reference 1: CN204442328U

[0006] Reference 2: CN208226984U

[0007] Reference 3: CN112992583A

[0008] Reference 4: CN220914083U

[0009] Due to limitations in product working principles and manufacturing processes, although technicians are constantly improving related products, the sensitivity of magnetic shaft switches and inductive shaft switches, as well as the input stability of keyboards, are still insufficient in existing technologies, and may even affect the user experience in certain scenarios. Summary of the Invention

[0010] As an improvement, a method for enhancing input stability is provided for a keyboard. The keyboard includes keys and corresponding magnetic sensors. Each key has a magnetic component. When a key is pressed, the magnetic component moves towards the magnetic sensor, and during this movement, it can rotate relative to the sensor. Compared to existing technologies, this method adds a rotational stroke to the magnetic component's movement with the key, resulting in a smoother and more uniform change in the magnetic field sensed by the magnetic sensor. This increases the sensor's sensitivity to key input and improves the keyboard's input stability.

[0011] Furthermore, the magnetic component can rotate relative to the magnetic sensor during at least a portion of its movement toward the magnetic sensor. For example, the magnetic component may initially move in a straight line during its downward movement, only beginning to rotate when it reaches a position where it can rotate. Alternatively, the magnetic component may only move in a straight line during the final stage of its downward movement. The magnetic component may rotate synchronously during its descent, then stop rotating during its straight descent. It may also remain stationary during both the initial and final stages of its downward movement, rotating only during the middle stage. In short, during the movement of the magnetic component toward the magnetic sensor, only a portion of the process requires rotation relative to the magnetic sensor.

[0012] Furthermore, during the rotation of the magnetic component relative to the magnetic sensor, it moves relative to the magnetic sensor along a spiral trajectory. This rotation is only required during the descent of the magnetic component; alternatively, it can move along a different trajectory. The spiral trajectory movement is more efficient, easier to control, and more suitable for industrial application, thus improving keyboard input stability.

[0013] Furthermore, the spiral is a spiral with a gradually changing pitch, which can change the approach rate of the magnetic component relative to the magnetic sensor. Since the user presses the button vertically downwards during the button-pressing process, by adjusting the pitch, the distance at which the magnetic component approaches the magnetic sensor when pressing down a unit distance vertically can be adjusted, thereby realizing input and sensing control, improving the sensing sensitivity of the magnetic sensor, and improving input stability.

[0014] Furthermore, the pitch of the spiral portion farther from the magnetic sensor is smaller than that of the spiral portion closer to the magnetic sensor. Due to the smaller pitch, the magnetic component rotates a longer distance when moving vertically downwards by a unit distance, making the magnetic component approach the magnetic sensor more slowly, thereby further improving sensing accuracy and input stability.

[0015] Furthermore, the magnetic component rotates about an axis during its rotation. It is only necessary to ensure that the magnetic component can rotate during its descent; the magnetic component does not necessarily have to rotate along a specific axis. Rotating the magnetic component about an axis is more efficient, easier to control, and facilitates industrial application, thereby improving the input stability of the keyboard.

[0016] Furthermore, the axis passes through the magnetic sensor, so that the magnetic component can achieve a better sensing and detection effect as it approaches the magnetic sensor. Of course, it is not required that the axis must pass through the magnetic sensor, as long as the magnetic component can move towards the magnetic sensor and rotate relative to the magnetic sensor.

[0017] Furthermore, the axis is coaxial with the vertical center line of the magnetic sensor.

[0018] Furthermore, when the button is released from pressure, the button can be reset under the action of elasticity.

[0019] Furthermore, the button is reset under the action of the elastic element.

[0020] Furthermore, the elastic element is a spring, although other elastic elements known in the art can obviously also be used. The choice of the elastic element itself is not an improvement of this utility model.

[0021] Furthermore, when the button is released, the magnetic component moves away from the magnetic sensor as the button is released. During the process of moving away from the magnetic sensor, the magnetic component can rotate relative to the magnetic sensor at least partially. The rotation of the magnetic component during the process of moving away from the magnetic sensor can improve the sensing accuracy of the button's rapid trigger function.

[0022] Furthermore, during the reset process, the movement trajectory of the magnetic component is opposite to that during the pressing process. This fully utilizes the existing path of the magnetic component as it moves towards the magnetic sensor, making its movement more efficient, easier to control, and more suitable for industrial use, thus improving keyboard input stability. Of course, the movement trajectory of the magnetic component during the reset process can also be other trajectories and does not necessarily have to be opposite to that during the pressing process.

[0023] Furthermore, the magnetic component is a magnet. Of course, it could also be any magnetic component commonly found in the art. The choice of the magnetic component itself is not a point of improvement in this invention.

[0024] As an improvement, a method for enhancing input stability is provided. In this method, the magnetic sensor can be replaced with an inductive element, and the magnetic component can be replaced with a magnetic component or conductor that corresponds to the inductive element to achieve electromagnetic induction. This also enables input control via keyboard and keypad. The specific implementation principle is existing technology and will not be elaborated here.

[0025] Furthermore, the magnetic component or conductor that corresponds to the inductor can be a magnet or a metal rod. The metal rod can be a commonly used conductive metal or alloy, such as an aluminum rod, a copper rod, or a silver rod, which are metals with good conductivity. Among them, aluminum rods have significant advantages in processing performance and cost, making them convenient for industrial application.

[0026] As an improvement, corresponding to the aforementioned method, a keyboard is also provided, comprising a PCB and keys. The keys are connected to the PCB, and the PCB is equipped with a magnetic sensor corresponding to each key. Each key has a magnetic component that is rotatable relative to the magnetic sensor. By enabling the magnetic component to rotate relative to the magnetic sensor, the magnetic component can rotate while moving relative to the sensor, resulting in a smoother and more uniform change in the magnetic field sensed by the magnetic sensor. This increases the sensitivity of the magnetic sensor to key inputs and improves the keyboard's input stability.

[0027] Furthermore, when the button is pressed, the magnetic component moves toward the magnetic sensor as it is pressed, and the magnetic component can rotate relative to the magnetic sensor during the process of moving toward the magnetic sensor.

[0028] Furthermore, the magnetic component is capable of rotating relative to the magnetic sensor during at least a portion of the process of moving toward the magnetic sensor.

[0029] Furthermore, the button is provided with a shaft core. When the button is pressed, the shaft core can move toward the magnetic sensor, and the magnetic component is rotatably mounted on the shaft core.

[0030] Furthermore, the magnetic component is a magnet, or of course, any magnetic component commonly found in the art.

[0031] Furthermore, the button is provided with an elastic element, which allows the button to reset under the action of the elastic element when the button is released from pressure.

[0032] Furthermore, the elastic element is a spring, or of course, any elastic element commonly found in the art.

[0033] Furthermore, the button is provided with a guide, and the magnetic component can move towards the magnetic sensor along the guide trajectory. Alternatively, the guide can be omitted, and a dedicated driving element can be used to drive the magnetic component to rotate, causing it to move towards the magnetic sensor along a predetermined trajectory. For example, a motor can be used to drive the magnetic component to rotate, thus enabling it to move towards the magnetic sensor along a predetermined trajectory without a guide.

[0034] Furthermore, at least a portion of the guide trajectory is a spiral.

[0035] Furthermore, the spiral is a spiral with a gradually changing pitch.

[0036] Furthermore, the pitch of the helical portion at the end furthest from the magnetic sensor is smaller than the pitch of the helical portion at the end closer to the magnetic sensor.

[0037] Furthermore, the guide component is a guide ring, and the guide ring is provided with a guide block or a guide groove. Of course, the guide ring can also be provided with both guide rings and guide grooves, and the number of guide rings and guide grooves is not limited to one.

[0038] Furthermore, when the guide ring is provided with a guide block, the guide block protrudes towards the axial direction of the guide ring; when the guide ring is provided with a guide groove, the guide groove is formed on the inner wall of the guide ring.

[0039] Furthermore, the magnetic component and the shaft are rotatably connected via a bearing. The inner and outer rings of the bearing allow for mutual rotation between the shaft and the magnetic component. Alternatively, other non-bearing rotating connection structures can also be used to connect the magnetic component and the shaft.

[0040] Furthermore, the magnetic component is connected to the inner ring of the bearing, and the shaft is connected to the outer ring of the bearing. According to actual needs, the material, shape and connection position of the corresponding components can be adjusted accordingly. Alternatively, a structure can be used where the magnetic component is connected to the outer ring and the shaft is connected to the inner ring, as long as the magnetic component and the shaft are rotatably connected.

[0041] Furthermore, the magnetic component is connected to the inner ring of the bearing via a guide post. The material, shape, and connection position of the corresponding components can be adjusted according to actual needs. Alternatively, the magnetic component can be directly connected to the bearing without the guide post.

[0042] Furthermore, the guide post is connected to the inner ring of the bearing via a spline structure. Depending on actual needs, it can also be connected without a non-spline structure, for example, by means of an optical axis or other methods.

[0043] Furthermore, the shaft core is connected to the outer ring of the bearing via a bushing, and the bushing and the outer ring of the bearing are in an interference fit. For example, the bushing may be provided with several reinforcing ribs to assist in achieving the interference fit; or, without reinforcing ribs, the interference fit may be achieved solely through machining dimensions. Depending on actual needs, the connection may also be achieved without a bushing or through a non-shoulder-type connection structure.

[0044] Furthermore, the bushing is engaged with the shaft core, but other connections are also possible.

[0045] Furthermore, the bushing is provided with a buckle, and the shaft core is provided with a slot. Of course, the fastening can also be achieved through other methods or structures.

[0046] Furthermore, the guide post is provided with a guide groove or guide block that corresponds to and matches the guide ring.

[0047] Furthermore, the magnetic component is capable of rotating about an axis.

[0048] Furthermore, the axis passes through the magnetic sensor.

[0049] Furthermore, the axis is coaxial with the vertical center line of the magnetic sensor.

[0050] Furthermore, the magnetic sensor is soldered onto the PCB, but it can also be connected in other ways, such as by pasting. The choice of connection method between the magnetic sensor and the PCB is not an improvement of this utility model.

[0051] Furthermore, the button is provided with a base and a top cover. The bottom end of the base is connected to the PCB, and a protruding post is provided at the bottom end of the base. A recessed hole is provided on the PCB, and the protruding post is inserted into the recessed hole on the PCB. There are two protruding posts. A guide ring is provided on the inner surface of the base. The top cover is connected to the base to form an accommodating space. An elastic element is provided in the accommodating space. The lower part of the shaft abuts against the elastic element, wherein the shaft abuts against the elastic element through a bushing. The upper part of the shaft can slide out of the top cover. The top cover is fastened to the base. A cross shaft is provided on the upper part of the shaft. The elastic element is sleeved on the outside of the guide ring and the outside of the guide post. A magnetic element is provided in the hole at the bottom end of the guide post, and the magnetic element is interference-fitted with the guide post. The interconnection between the button's base, top cover, elastic element, shaft, and magnetic element, and how the button is connected to the PCB, are not limited to the above description and are not improvements of this utility model.

[0052] As an improvement, a keyboard is provided in which the magnetic sensor can be replaced with an inductive element, and the magnetic element can be replaced with a magnetic element or conductor that corresponds to the inductive element to realize electromagnetic induction. This can also realize keyboard and key input control. The specific implementation principle is existing technology and will not be elaborated here.

[0053] Furthermore, the magnetic component or conductor that corresponds to the inductor can be a magnet or a metal rod. The metal rod can be a commonly used conductive metal or alloy, such as an aluminum rod, a copper rod, or a silver rod, which are metals with good conductivity. Among them, aluminum rods have significant advantages in processing performance and cost, making them convenient for industrial application.

[0054] Furthermore, the inductor can take various forms, such as inductor coils. Inductor coils are easy to process and have the lowest cost; for example, they can be directly printed on a PCB. To increase the induction effect of the inductor coil, two inductor coils can be used, one on the upper surface and one on the lower surface of the PCB. Of course, inductor coils can also be mounted on the PCB by soldering or pasting. There can be only one inductor coil or more than two. According to the implementation principle, the inductor coil is controlled by a control chip to generate an electromagnetic field, which then cooperates with magnetic components or conductors to realize the switching judgment. The specific principles are all existing technologies and will not be elaborated here.

[0055] Furthermore, in order to improve the interaction with the inductor, the PCB is provided with through holes for conductors or magnetic materials to move through. This increases the travel distance of the conductor or magnetic material relative to the inductor, thereby improving the induction effect. Of course, if the induction effect between the conductor or magnetic material and the inductor is already sufficient, the through hole may not be provided on the PCB.

[0056] As an improvement, corresponding to the aforementioned method and keyboard solution, a method for enhancing sensing sensitivity is also provided. This method is applied to a key, which has a shaft core and a magnetic component. When the key is pressed, the magnetic component moves with the shaft core and can rotate relative to the shaft core during this movement. By allowing the magnetic component to rotate relative to the shaft core during the pressing and moving process, the method changes the key's magnetic component from simply moving towards the magnetic sensor with the shaft core. During signal input, the magnetic field changes sensed by the magnetic sensor become smoother and more uniform, increasing the sensor's sensitivity to key input and thus improving the key's overall sensitivity.

[0057] Furthermore, the magnetic element is rotatable relative to the shaft core during at least a portion of the movement with the shaft core.

[0058] Furthermore, the magnetic component rotates about an axis when it rotates.

[0059] Furthermore, the axis is coaxial with the vertical center line of the shaft core.

[0060] Furthermore, when the button is released from pressure, the button can be reset under the action of elasticity.

[0061] Furthermore, when the button is released, the magnetic component moves back to its original position along with the shaft, and during this process, the magnetic component can rotate relative to the shaft.

[0062] Furthermore, the magnetic component is capable of rotating relative to the shaft core during the reset and movement process.

[0063] Furthermore, during the reset process, the movement trajectory of the magnetic component is opposite to the movement trajectory of the button during the pressing process.

[0064] Furthermore, during the rotation of the magnetic component relative to the shaft, as the distance of the shaft from its initial position increases, the angle of rotation of the magnetic component gradually changes for each unit distance the shaft moves. This alters the approach rate of the magnetic component relative to the magnetic sensor. Since keyboard users press the keys vertically downwards when typing, adjusting the pitch allows for adjustment of the distance the magnetic component approaches the magnetic sensor per unit downward press, thus controlling input and sensing, improving the sensitivity of the magnetic sensor, and consequently improving input stability.

[0065] Furthermore, the angle gradually increases. That is, when moving a unit distance vertically downwards, the magnetic component needs to rotate a longer distance, making the speed at which the magnetic component approaches the magnetic sensor gradually slower, further improving sensing accuracy and input stability.

[0066] Furthermore, the magnetic component is a magnet.

[0067] Furthermore, the button is reset under the action of the elastic element.

[0068] Furthermore, the elastic element is a spring.

[0069] As an improvement, a method to enhance sensing sensitivity is provided for application to buttons. In this method, the magnetic component can also be replaced with a conductive body that corresponds to the inductive element to achieve electromagnetic induction. This can also realize input control of the keyboard and buttons. The specific implementation principle is existing technology and will not be elaborated here.

[0070] Furthermore, the conductor that corresponds to the inductor can be a metal rod. The metal rod can be a commonly used conductive metal or alloy, such as aluminum rod, copper rod, silver rod, etc., which have good conductivity. Among them, aluminum rod has significant advantages in processing performance and cost, making it convenient for industrial application.

[0071] As an improvement, corresponding to the aforementioned method and keyboard solution, a key is also provided, which has a shaft core capable of moving along a trajectory defined by the key, such as vertically. A magnetic element is disposed on the shaft core, and this magnetic element is rotatable relative to the shaft core. The ability of the magnetic element to rotate relative to the shaft core during pressing changes the previous method where the magnetic element could only move towards the magnetic sensor with the movement of the shaft core. During signal input, the magnetic field changes sensed by the magnetic sensor are smoother and more uniform, increasing the sensitivity of the magnetic sensor to key input on the keyboard, thus improving the key's sensitivity.

[0072] Furthermore, when the button is pressed, the magnetic component moves with the shaft, and during the movement of the magnetic component with the shaft, it can rotate relative to the shaft.

[0073] Furthermore, the magnetic element is rotatable relative to the shaft core during at least a portion of the movement with the shaft core.

[0074] Furthermore, the magnetic component is capable of rotating about an axis.

[0075] Furthermore, the axis is coaxial with the vertical center line of the shaft core.

[0076] Furthermore, an elastic element is provided so that when the button is released from pressing, the button can be reset under the action of the elastic element.

[0077] Furthermore, when the button is released, the magnetic component moves back to its original position along with the shaft, and during this process, the magnetic component can rotate relative to the shaft.

[0078] Furthermore, the magnetic component is capable of rotating relative to the shaft core during the reset and movement process.

[0079] Furthermore, the magnetic component is a magnet, and the elastic component is a spring.

[0080] Furthermore, the button is provided with a guide, and the magnetic component can move along the guide trajectory of the guide.

[0081] Furthermore, at least a portion of the guide trajectory is a spiral.

[0082] Furthermore, the spiral is a spiral with a gradually changing pitch.

[0083] Furthermore, the pitch of the helical portion away from the magnetic guide is smaller than the pitch of the helical portion closer to the guide.

[0084] Furthermore, the guide component is a guide ring, and the guide ring is provided with a guide block or a guide groove.

[0085] Furthermore, when the guide ring is provided with a guide block, the guide block protrudes towards the axial direction of the guide ring; when the guide ring is provided with a guide groove, the guide groove is formed on the inner wall of the guide ring.

[0086] Furthermore, the magnetic component is rotatably connected to the shaft core via a bearing.

[0087] Furthermore, the magnetic component is connected to the inner ring of the bearing, and the shaft core is connected to the outer ring of the bearing.

[0088] Furthermore, the magnetic component is connected to the inner ring of the bearing via a guide post, and the guide post is connected to the inner ring of the bearing via a spline structure. The shaft core is connected to the outer ring of the bearing via a bushing, and the bushing and the outer ring of the bearing are interference-fitted. The bushing and the shaft core are engaged, and the bushing is provided with a buckle. The shaft core is provided with a groove.

[0089] Furthermore, the guide post is provided with a guide groove or guide block that corresponds to and matches the guide ring.

[0090] Furthermore, a base and a top cover are provided. The bottom end of the base is provided with two protruding posts. The guide ring is provided on the inner surface of the base. The top cover is connected to the base to form an accommodating space. The elastic element is provided in the accommodating space. The lower part of the shaft core abuts against the elastic element. The shaft core abuts against the elastic element through the bushing. The upper part of the shaft core can slide out of the top cover. The top cover is fastened to the base. A cross shaft is provided on the upper part of the shaft core. The elastic element is sleeved on the outside of the guide ring and the outside of the guide post. The magnetic element is provided in the hole at the bottom end of the guide post. The magnetic element is interference-fitted with the guide post.

[0091] As an improvement, a button is provided, in which the magnetic element can be replaced with a conductive element that corresponds to the inductive element to achieve electromagnetic induction. This can also realize keyboard and button input control. The specific implementation principle is existing technology and will not be elaborated here.

[0092] Furthermore, the conductor that corresponds to the inductor can be a metal rod. The metal rod can be a commonly used conductive metal or alloy, such as aluminum rod, copper rod, silver rod, etc., which have good conductivity. Among them, aluminum rod has significant advantages in processing performance and cost, making it convenient for industrial application.

[0093] As an improvement, corresponding to the aforementioned method and keyboard solution, a key shaft is also provided, on which a magnetic element is disposed, and the magnetic element is rotatable relative to the shaft. The rotatable magnetic element allows rotation relative to the shaft during the pressing and moving process, changing the previous method where the magnetic element could only move towards the magnetic sensor with the movement of the shaft. This extends the relative travel distance between the magnetic element and the magnetic sensor during signal input, increasing the sensitivity of the magnetic sensor to key input and thus improving the keyboard's input stability.

[0094] Furthermore, the magnetic component is capable of rotating about an axis.

[0095] Furthermore, the axis is coaxial with the vertical center line of the shaft core.

[0096] Furthermore, the magnetic component is a magnet.

[0097] Furthermore, the magnetic component is rotatably connected to the shaft core via a bearing.

[0098] Furthermore, the magnetic component is connected to the inner ring of the bearing, and the shaft core is connected to the outer ring of the bearing.

[0099] Furthermore, the magnetic component is connected to the inner ring of the bearing via a guide post, and the guide post is connected to the inner ring of the bearing via a spline structure. The shaft core is connected to the outer ring of the bearing via a bushing, and the bushing and the outer ring of the bearing are interference-fitted. The bushing and the shaft core are engaged, and the bushing is provided with a buckle. The shaft core is provided with a groove.

[0100] Furthermore, the guide post is provided with a guide groove or a guide block.

[0101] Furthermore, when a guide block is provided on the guide post, the guide block is provided on the outer surface of the guide post; when a guide groove is provided on the guide post, the guide groove is provided on the outer surface of the guide post.

[0102] Furthermore, when the guide post is provided with a guide groove, at least a portion of the guide groove is spirally wrapped around the outer surface of the guide post.

[0103] Furthermore, the spiral is a spiral with a gradually changing pitch.

[0104] Furthermore, the pitch of the helical portion farther from the bottom of the guide post is smaller than the pitch of the helical portion closer to the bottom of the guide post.

[0105] Furthermore, a cross shaft is provided on the upper part of the shaft core, and the magnetic component is disposed in the hole at the bottom end of the guide post, with the magnetic component and the guide post being interference-fitted.

[0106] As an improvement, a shaft core is provided, in which the magnetic component can be replaced with a conductor that corresponds to the inductive component to achieve electromagnetic induction. This also enables input control of the keyboard and buttons. The specific implementation principle is existing technology and will not be elaborated here.

[0107] Furthermore, the conductor that corresponds to the inductor can be a metal rod. The metal rod can be a commonly used conductive metal or alloy, such as aluminum rod, copper rod, silver rod, etc., which have good conductivity. Among them, aluminum rod has significant advantages in processing performance and cost, making it convenient for industrial application.

[0108] As an improvement, a keyboard is also provided, which has the keys or switches described in the aforementioned solution.

[0109] As an improvement, a laptop computer is also provided, which has the aforementioned keyboard, keys or switches, to improve the input stability of the laptop computer.

[0110] As an improvement, an electronic device is also provided, which has the aforementioned keyboard, keys or switches, to improve the input stability of the electronic device. Attached Figure Description

[0111] Figure 1 This is a schematic diagram of uneven thickness of magnetic components.

[0112] Figure 2 This is a schematic diagram of uneven density in magnetic components.

[0113] Figure 3 It is a 3D diagram of a keyboard.

[0114] Figure 4 This is a diagram showing the disassembled keyboard.

[0115] Figure 5 It is a three-dimensional cross-sectional view of the keyboard.

[0116] Figure 6 This is a cross-sectional view of the keyboard.

[0117] Figure 7 This is a cross-sectional view of the keyboard when the guide ring is equipped with guide blocks.

[0118] Figure 8 This is a cross-sectional view of the keyboard when the guide ring has a guide groove.

[0119] Figure 9 This is a schematic diagram of the assembly of the guide post and the bearing.

[0120] Figure 10 This is a schematic diagram of the bushing.

[0121] Figure 11 This is a schematic diagram of the base when the guide ring is equipped with guide blocks.

[0122] Figure 12 This is a schematic diagram of the base when the guide ring has a guide groove.

[0123] Figure 13 This is a schematic diagram of a guide post.

[0124] Figure 14 This is a schematic diagram of the shaft core.

[0125] Figure 15 This is a cross-sectional view of the bushing and shaft core snap-fit ​​structure.

[0126] Figure 16 This is a diagram showing the disassembled keyboard.

[0127] Figure 17 It is a three-dimensional sectional view of the keyboard. Detailed Implementation

[0128] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model 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 limiting the scope of protection of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0129] Since the keyboard itself and its component structure, assembly connections and basic electromechanical control implementation principles are already existing technologies (such as those described in references 1-4 in the background), other non-improved parts are not shown in the accompanying drawings, and will not be described again in the embodiment section. Example

[0130] A method to improve input stability, applied to keyboards, such as Figures 3 to 15 As shown, the keyboard is equipped with keys and corresponding magnetic sensors 11. A magnetic element 7 is mounted on each key. When a key is pressed, the magnetic element 7 moves towards the magnetic sensor 11. During this movement, the magnetic element 7 can rotate relative to the magnetic sensor 11. Compared to existing technologies where the magnetic element 7, once installed in the key, can only move with the key being pressed, the magnetic element 7 in this embodiment can also rotate relative to the magnetic sensor 11. This makes the magnetic field change detected by the magnetic sensor 11 smoother and more uniform, increasing the sensitivity of the magnetic sensor 11 to key input and improving the keyboard's input stability.

[0131] Even though technicians are constantly improving manufacturing processes, such as enhancing the processing level of magnetic sensors 11 and magnetic components 7, the limitations of manufacturing and assembly processes in actual mass production mean that, on the one hand, parts like magnetic components 7 inevitably still have uneven magnetic field distribution. Differences in internal density and voids within the magnetic components during manufacturing result in uneven mass and material thickness distribution, leading to uneven magnetic field distribution. Figure 1 This shows uneven thickness of the magnetic component; the right side of the component is thinner than the left, resulting in inconsistencies in the component's quality and material. Figure 2 The data shows that the density on the left side of the magnetic component is significantly lower than that on the right side (where denser black dots indicate higher density), resulting in uneven quality and material distribution. Furthermore, insufficient processing precision during the magnetization process can also lead to uneven magnetic field distribution, especially noticeable in scenarios where multiple magnetic fields are applied to a single component. This can cause one or more magnetic fields to be too strong or too weak, resulting in an overall uneven magnetic field distribution. Using magnetic components with uneven magnetic fields in keyboards and keys can also negatively impact keyboard input stability.

[0132] Using the method described in this embodiment, the magnetic component 7 can rotate relative to the magnetic sensor 11 during its movement toward the magnetic sensor 11. This greatly improves the input instability problem caused by the uneven magnetic field of the magnetic component 7. Even if the magnetic field is uneven at a certain point during the movement of the magnetic component 7 toward the magnetic sensor 11, the rotation of the magnetic component 7 makes the change in the magnetic field sensed by the magnetic sensor 11 more uniform, thus improving the input instability caused by the uneven magnetic field of the magnetic component 7. On the other hand, during the mass production and installation of the keyboard, the installation positions of the main components such as the magnetic component 7 and the magnetic sensor 11 may also have certain deviations. For example, if the magnetic sensor is biased towards the side with a weaker magnetic field, in the prior art, the key may not be accurately sensed when pressed due to the small magnetic flux, resulting in input instability. Using the method in this embodiment, the rotation of the magnetic component 7 makes the end with a stronger magnetic field compensate for the above defects, improves the impact of this type of installation deviation on input accuracy, and enhances input stability.

[0133] During the movement of the magnetic component 7 toward the magnetic sensor 11, it can rotate relative to the magnetic sensor 11 at least for a part of the process. For example, the magnetic component 7 moves in a straight line during the initial segment of its downward movement. This could be a straight line movement before contacting the lower guide component, or a partial straight line movement along the guide component. The magnetic component 7 only begins to rotate when it descends to the starting position of the rotation of the guide trajectory of the guide component.

[0134] Of course, the magnetic component 7 can also move only in a straight line during the final stage of its downward movement; the magnetic component 7 can rotate synchronously during its descent and then stop rotating during its straight descent; or it can remain stationary during the initial and final stages of its downward movement, rotating only in the middle stage. In short, it is sufficient that the magnetic component 7 rotates relative to the magnetic sensor 11 during at least a portion of its movement toward the magnetic sensor 11.

[0135] like Figure 5-8 , Figure 15 As the magnetic element 7 rotates relative to the magnetic sensor 11, it moves along a spiral trajectory relative to the magnetic sensor 11. In some embodiments, the spiral is a gradually changing pitch spiral (not explicitly shown in the figures), for example, the pitch of the spiral portion away from the magnetic sensor 11 is smaller than the pitch of the spiral portion closer to the magnetic sensor 11. That is, when moving a unit distance vertically downward, the magnetic element 7 needs to rotate a longer distance, making the speed at which the magnetic element 7 approaches the magnetic sensor gradually slower, further improving the sensing accuracy and input stability.

[0136] like Figure 6 , 7 As shown, the magnetic component 7 rotates around an axis that passes through the magnetic sensor 11 and is coaxial with the vertical center line 200 of the magnetic sensor 11. The magnetic component 7 is a magnet, and it can be a cylindrical magnet.

[0137] When the button is released, it resets under the action of elastic force. When the button is released, the magnetic element 7 moves away from the magnetic sensor 11. During this movement, the magnetic element 7 can rotate relative to the magnetic sensor 11 at least partially. This reverse rotation improves the sensing accuracy of the button's rapid trigger function. In some embodiments, the movement trajectory of the magnetic element 7 during the button reset process is opposite to its movement trajectory during the button's pressing process. Of course, the movement trajectory of the magnetic element 7 during the reset process can also be other trajectories, not necessarily opposite to the movement trajectory during the pressing process. For example, the magnetic element 7 can reset along a straight trajectory away from the magnetic sensor 11, or it can reset along another rotatable trajectory (e.g., a spiral trajectory parallel to the original trajectory) that has a certain displacement from the original trajectory close to the magnetic sensor 11.

[0138] The button is reset by the action of the elastic element 8, such as a spring. Example

[0139] A keyboard corresponding to Embodiment 1, such as Figures 3 to 15As shown, a PCB 10 and a button are provided. The button is connected to the PCB 10. The PCB 10 is equipped with a magnetic sensor 11 corresponding to the button. A magnetic element 7 is provided on the button 11, and the magnetic element 7 can rotate relative to the magnetic sensor 11. When the button is pressed, the magnetic element 7 moves towards the sensor 11 as it is pressed, and the magnetic element 7 can rotate relative to the magnetic sensor 11 during the process of moving towards the magnetic sensor 11. The magnetic element 7 can rotate relative to the magnetic sensor 11 for at least part of the process of moving towards the magnetic sensor 11.

[0140] The button has a shaft 3. When the button is pressed, the shaft 3 can move toward the magnetic sensor 11. The magnetic component 7 is rotatably mounted on the shaft 3. The magnetic component 7 is a magnet, and the magnetic component 7 can be a cylindrical magnet.

[0141] The button has a spring-like element 8. When the button is released from pressure, the button can return to its original position under the action of the spring-like element 8.

[0142] A guide 91 is provided on the button, and the magnetic component 7 can move along the guide trajectory of the guide 91 toward the magnetic sensor 11. Figure 5-8 , Figure 15 At least a portion of the guide trajectory shown is a spiral. In some embodiments, the spiral is a spiral with a gradually changing pitch (not explicitly shown in the figures), for example, the pitch of the spiral portion away from the magnetic sensor 11 is smaller than the pitch of the spiral portion closer to the magnetic sensor 11. That is, when moving vertically downward a unit distance, the magnetic element 7 needs to rotate a longer distance, making the speed at which the magnetic element 7 approaches the magnetic sensor gradually slower, further improving the sensing accuracy and input stability.

[0143] like Figure 5-8 The guide element 91 shown in 11, 12, and 15 is a guide ring, on which a guide block 92 or a guide groove 93 is provided. For example... Figure 7 As shown, when the guide ring is provided with a guide block 92, the guide block 92 protrudes towards the axis of the guide ring, or, as... Figure 8 As shown, when the guide ring is provided with a guide groove 93, the guide groove 93 is formed on the inner wall of the guide ring.

[0144] like Figure 5-8 , Figure 15 The magnetic component 7 and the shaft core 3 are rotatably connected via a bearing 5. The magnetic component 7 is connected to the inner ring of the bearing 5, and the shaft core 3 is connected to the outer ring of the bearing 5. Furthermore, the magnetic component 7 is connected to the inner ring of the bearing 5 via a guide post 6. Further, as... Figure 9 As shown in Figure 13, the guide post 6 and the inner ring of the bearing 5 are connected by a spline structure 63. Alternatively, in other embodiments, they may be connected without the spline structure 63, such as by a single optical axis. Furthermore, as... Figure 5-10 The shaft core 3 shown is connected to the outer ring of the bearing 5 through a bushing 4. The bushing 4 and the outer ring of the bearing 5 are interference fit. The bushing 4 is provided with several reinforcing ribs 42 to assist in achieving the interference fit; or in other embodiments, the reinforcing ribs 42 are not used, and the interference fit is achieved only by the size fit.

[0145] Furthermore, such as Figure 9-10 As shown in Figures 14-15, the bushing 4 is fastened to the shaft core 3. The bushing 4 is provided with a buckle 41, and the shaft core 3 is provided with a groove 31.

[0146] Furthermore, such as Figure 5-9 The guide post 6 shown in Figures 13 and 15 is provided with a guide groove 61 or guide block 62 that matches the guide ring.

[0147] Furthermore, the magnetic component 7 is capable of rotating about an axis. The axis passes through the magnetic sensor 11 and is coaxial with the vertical center line 200 of the magnetic sensor 11.

[0148] Furthermore, the magnetic sensor 11 is soldered onto the PCB 10. Of course, it can also be connected in other ways, such as by pasting. The choice of connection method between the magnetic sensor 11 and the PCB 10 is not an improvement of this utility model. The button is equipped with a base 9 and a top cover 1. The bottom end of the base 9 is connected to the PCB 10. The bottom end of the base 9 is provided with a protrusion. The PCB 10 is provided with a concave hole. The protrusion is inserted into the concave hole on the PCB 10. There are two protrusions. A guide ring is provided on the inner surface of the base 9. The top cover 1 is connected to the base 9 to form an accommodating space 100. The elastic element 8 is provided in the accommodating space 100. Furthermore, the lower part of the shaft core 3 abuts against the elastic element 8. The shaft core 3 abuts against the elastic element 8 through the bushing 4. The upper part of the shaft core 3 can slide out of the top cover 1. The top cover 1 is fastened to the base 9. A cross shaft 32 is provided on the upper part of the shaft core 3. The elastic element 8 is sleeved on the outside of the guide ring. The elastic element 8 is sleeved on the outside of the guide post 6. The magnetic element 7 is provided in the hole 64 at the bottom end of the guide post 6. The magnetic element 7 is interference-fitted with the guide post 6.

[0149] The base 9 is connected to the PCB 10 by a protrusion at the bottom and is fixed on the positioning plate 2 of the keyboard. Example

[0150] A method for improving sensing sensitivity, corresponding to Embodiments 1 and 2, is applied to a key. The key has a shaft core 3, and a magnetic element 7 is mounted on the shaft core 3. When the key is pressed, the magnetic element 7 moves with the shaft core 3, and can rotate relative to the shaft core 3 during this movement. Compared to the prior art where the magnetic element 7, once installed in the key, can only move with the key being pressed, the magnetic element 7 in this embodiment can rotate relative to the magnetic sensor 11. This makes the magnetic field change process sensed by the magnetic sensor 11 smoother and more uniform, increasing the sensing sensitivity of the magnetic sensor 11 during key input, improving the key's sensing sensitivity, and providing a unique tactile feel with a certain damping, enriching the tactile experience for consumers when pressing the key.

[0151] Furthermore, the magnetic component 7 is capable of rotating relative to the shaft core 3 during at least a portion of the movement process. For example... Figure 6 , 7 As shown, the magnetic component 7 rotates around an axis. The axis is coaxial with the vertical center line 200 of the shaft core 3 (in the figure, the vertical center line of the shaft core 3 and the magnetic sensor 11 coincide, both marked 200).

[0152] Furthermore, when the button is released, it resets under the action of elasticity. When the button is released, the magnetic component 7 moves back to its original position along with the shaft core 3, and during this reset movement, the magnetic component 7 can rotate relative to the shaft core 3. The magnetic component 7 can rotate relative to the shaft core 3 at least partially during this reset movement. The movement trajectory of the magnetic component 7 during the button reset process is opposite to its movement trajectory during the button being pressed.

[0153] Furthermore, in some embodiments, during the rotation of the magnetic element 7 relative to the shaft core 3, as the distance of the shaft core 3 from its initial position increases, the angle of rotation of the magnetic element 7 for each unit distance the shaft core 3 moves gradually changes (not explicitly shown in the figures). For example, as the angle gradually increases, i.e., when moving vertically downwards by a unit distance, the magnetic element 7 needs to rotate a longer distance, making the speed at which the magnetic element 7 approaches the magnetic sensor gradually slower, further improving the sensing accuracy and input stability.

[0154] Furthermore, the magnetic component 7 is a magnet, preferably a cylindrical magnet.

[0155] Furthermore, the button is reset under the action of the elastic element 8, which is a spring. Example

[0156] A button corresponding to Examples 1-3, such as Figures 3 to 15As shown, a shaft core 3 is provided, which can move along the trajectory defined by the key. A magnetic element 7 is provided on the shaft core 3, which can rotate relative to the shaft core 3. Compared with the prior art, the magnetic element 7 in this example can rotate relative to the shaft core 3. During the pressing and moving process, the magnetic element 7 can rotate relative to the shaft core 3, which changes the way the magnetic element 7 in the key can only move towards the magnetic sensor 11 with the movement of the shaft core 3. During the key's execution signal input process, the magnetic field change process sensed by the magnetic sensor 11 is more gradual and uniform, which increases the sensing sensitivity of the magnetic sensor 11 during the key input process of the keyboard, that is, improves the sensing sensitivity of the key.

[0157] Furthermore, such as Figure 5-8 , Figure 15 As shown, when the button is pressed, the magnetic element 7 moves with the shaft core 3, and during this movement, the magnetic element 7 can rotate relative to the shaft core 3. The magnetic element 7 can rotate relative to the shaft core 3 during at least a portion of its movement. The magnetic element 7 can rotate about an axis. The axis is coaxial with the vertical center line 200 of the shaft core 3 (marked 200 in the illustration, where the vertical center line of the shaft core 3 and the magnetic sensor 11 coincide).

[0158] Furthermore, an elastic element 8 is provided, allowing the button to reset under the action of the elastic element 8 when the button is released. When the button is released, the magnetic element 7 moves back to its original position along with the shaft 3, and can rotate relative to the shaft 3 during this process. The magnetic element 7 can rotate relative to the shaft 3 at least partially during this process. Furthermore, the magnetic element 7 is a magnet, preferably a cylindrical magnet. The elastic element 8 is a spring.

[0159] Furthermore, a guide 91 is provided on the button, and the magnetic component 7 can move along the guide trajectory of the guide 91. For example... Figure 5-8 , Figure 15 At least a portion of the guide trajectory shown is a spiral. In some embodiments, the spiral is a gradually changing pitch spiral (not explicitly shown in the figures), for example, the pitch of the spiral portion away from the magnetic guide 91 is smaller than the pitch of the spiral portion closer to the guide 91. That is, when moving vertically downward a unit distance, the magnetic element 7 needs to rotate a longer distance, making the speed at which the magnetic element 7 approaches the magnetic sensor gradually slower, further improving the sensing accuracy and input stability.

[0160] like Figure 5-8 The guide element 91 shown in 11, 12, and 15 is a guide ring, on which a guide block 92 or a guide groove 93 is provided. For example... Figure 7 As shown, when the guide ring is provided with a guide block 92, the guide block 92 protrudes towards the axial direction of the guide ring 81, or, as... Figure 8 As shown, when the guide ring is provided with a guide groove 93, the guide groove 93 is formed on the inner wall of the guide ring.

[0161] like Figure 5-8 , Figure 15 The magnetic component 7 and the shaft core 3 are rotatably connected via a bearing 5. The magnetic component 7 is connected to the inner ring of the bearing 5, and the shaft core 3 is connected to the outer ring of the bearing 5. Furthermore, the magnetic component 7 is connected to the inner ring of the bearing 5 via a guide post 6, as shown. Figure 9 As shown in Figure 13, the guide post 6 and the inner ring of the bearing 5 are connected by a spline structure 63. Alternatively, in other embodiments, they may be connected without the spline structure 63, such as by a single optical axis. Furthermore, as... Figure 5-10 The shaft core 3 shown is connected to the outer ring of the bearing 5 through a bushing 4. The bushing 4 and the outer ring of the bearing 5 are interference fit. The bushing 4 is provided with several reinforcing ribs 42 to assist in achieving the interference fit; or in other embodiments, the reinforcing ribs 42 are not used, and the interference fit is achieved only by the size fit.

[0162] Furthermore, such as Figure 9-10 As shown in Figures 14-15, the bushing 4 is fastened to the shaft core 3. The bushing 4 is provided with a buckle 41, and the shaft core 3 is provided with a groove 31.

[0163] Furthermore, such as Figure 5-9 As shown in Figures 13 and 15, the guide post 6 is provided with a guide groove 61 or guide block 62 that matches the guide ring. For example... Figure 8 As shown, when a guide block 62 is provided on the guide post 6, the guide block 62 is located on the outer surface of the guide post 6; or, when a guide groove 61 is provided on the guide post 6, the guide groove 61 is located on the outer surface of the guide post 6, as shown. Figure 9 As shown.

[0164] Furthermore, a base 9 and a top cover 1 are provided. The bottom end of the base 9 is provided with two protruding posts. A guide ring is provided on the inner surface of the base 9. The top cover 1 is connected to the base 9 to form an accommodating space 100. An elastic element 8 is provided in the accommodating space 100. The lower part of the shaft core 3 abuts against the elastic element 8. Furthermore, the shaft core 3 abuts against the elastic element 8 through a bushing 4. The upper part of the shaft core 3 can slide out of the top cover 1. The top cover 1 is fastened to the base 9. A cross shaft 32 is provided on the upper part of the shaft core 3. The elastic element 8 is sleeved on the outside of the guide ring and the outside of the guide post 6. A magnetic element 7 is provided in the hole 64 at the bottom end of the guide post 6. The magnetic element 7 is interference-fitted with the guide post 6. Example

[0165] A key shaft 3 corresponding to Examples 1-4, such as Figure 3-10As shown in Figures 13-15, a magnetic element 7 is provided on the shaft core 3, and the magnetic element 7 can rotate relative to the shaft core 3. Compared with the prior art, the magnetic element 7 in the shaft core 3 can rotate relative to the shaft core 3, so that the magnetic element 7 can rotate relative to the shaft core 3 during the pressing and moving process. This changes the way in which the magnetic element 7 in the key can only move towards the magnetic sensor 11 with the movement of the shaft core 3. This makes the magnetic field change process sensed by the magnetic sensor 11 more gradual and uniform during the key execution signal input process, thereby increasing the sensing sensitivity of the magnetic sensor 11 during the key input process of the keyboard. This can improve the sensing sensitivity of the key and thus improve the input stability of the keyboard.

[0166] Furthermore, the magnetic component 7 is capable of rotating about an axis. This axis is coaxial with the vertical center line 200 of the shaft core 3 (in the illustration, the vertical center line of the shaft core 3 and the magnetic sensor 11 both coincide, both marked 200). The magnetic component 7 is a magnet, preferably cylindrical.

[0167] like Figure 5-8 , Figure 15 The magnetic component 7 and the shaft core 3 are rotatably connected via a bearing 5. The magnetic component 7 is connected to the inner ring of the bearing 5, and the shaft core 3 is connected to the outer ring of the bearing 5.

[0168] Furthermore, the magnetic component 7 is connected to the inner ring of the bearing 5 via a guide post 6, such as... Figure 9 As shown in Figure 13, the guide post 6 and the inner ring of the bearing 5 are connected by a spline structure 63. Alternatively, in other embodiments, they may not be connected by a spline structure 63, such as by a single optical axis. Furthermore, as... Figure 5-10 The shaft core 3 shown is connected to the outer ring of the bearing 5 through a bushing 4. The bushing 4 and the outer ring of the bearing 5 are interference fit. The bushing 4 is provided with several reinforcing ribs 42 to assist in achieving the interference fit; or in other embodiments, the reinforcing ribs 42 are not used, and the interference fit is achieved only by the size fit.

[0169] Furthermore, such as Figure 9-10 As shown in Figures 14-15, the bushing 4 is fastened to the shaft core 3. The bushing 4 is provided with a buckle 41, and the shaft core 3 is provided with a groove 31.

[0170] like Figure 5-9 As shown in Figures 13 and 15, the guide post 6 is further provided with a guide groove 61 or a guide block 62. For example... Figure 8 As shown, when a guide block 62 is provided on the guide post 6, the guide block 62 is located on the outer surface of the guide post 6; or, when a guide groove 61 is provided on the guide post 6, the guide groove 61 is located on the outer surface of the guide post 6, as shown. Figure 9 As shown. When the guide post 6 is provided with a guide groove 61, at least a portion of the guide groove 61 is spirally wrapped around the outer surface of the guide post 6.

[0171] In some embodiments, the helix is ​​a helix with a gradually changing pitch (not explicitly shown in the figures). For example, the pitch of the helix portion away from the bottom of the guide post 6 is smaller than the pitch of the helix portion closer to the bottom of the guide post 6. That is, when moving vertically downward a unit distance, the magnetic element 7 needs to rotate a longer distance, so that the speed at which the magnetic element 7 approaches the magnetic sensor gradually becomes slower, further improving the sensing accuracy and input stability.

[0172] Furthermore, a cross shaft 32 is provided on the upper part of the shaft core 3, and a magnetic component 7 is provided in the hole 64 at the bottom end of the guide post 6, with the magnetic component 7 and the guide post 6 being interference fit. Example

[0173] Corresponding to Example 1, a method for improving input stability is provided, such as... Figure 16-17 As shown, in this method, the magnetic sensor 11 is replaced by an inductor 21, and the magnetic element 7 is replaced by a magnetic element or conductor 17 that corresponds to the inductor 21 to achieve electromagnetic induction.

[0174] Furthermore, the magnetic component or conductor 17 corresponding to the inductor 21 can be a magnet or a metal rod. The metal rod can be a commonly used conductive metal or alloy, such as an aluminum rod, copper rod, silver rod, or other metals with good conductivity. Example

[0175] Corresponding to Embodiment 2, a keyboard is provided, such as Figure 16-17 As shown, Figure 16-17 As shown, the magnetic sensor 11 in the keyboard is replaced by an inductor 21, and the magnetic element 7 is replaced by a magnetic element or conductor 17 that corresponds to the inductor 21 to realize electromagnetic induction.

[0176] Furthermore, the magnetic component or conductor 17 corresponding to the inductor 21 can be a magnet or a metal rod. The metal rod can be a commonly used conductive metal or alloy, such as an aluminum rod, copper rod, silver rod, or other metals with good conductivity.

[0177] Furthermore, the inductor 21 is an inductor coil, which is directly printed on the PCB. There are two inductor coils, which are respectively set on the upper and lower surfaces of the PCB.

[0178] Furthermore, the PCB has through holes 22 for the conductor or magnetic body 17 to pass through. Example

[0179] Corresponding to Example 3, a method for improving sensing sensitivity is provided, applied to buttons, such as... Figure 16-17As shown, the magnetic element 7 in this method can also be replaced by a magnetic element or conductor 17 that corresponds to the inductor element 21 to achieve electromagnetic induction.

[0180] Furthermore, the magnetic component or conductor 17 corresponding to the inductor 21 can be a magnet or a metal rod. The metal rod can be a commonly used conductive metal or alloy, such as an aluminum rod, copper rod, silver rod, or other metals with good conductivity. Example

[0181] Corresponding to embodiment 4, a button is provided, such as Figure 16-17 As shown, the magnetic element 7 in the button can also be replaced with a magnetic element or conductor 17 that corresponds to the inductor element 21 to achieve electromagnetic induction.

[0182] Furthermore, the magnetic component or conductor 17 corresponding to the inductor 21 can be a magnet or a metal rod. The metal rod can be a commonly used conductive metal or alloy, such as an aluminum rod, copper rod, silver rod, or other metals with good conductivity. Example

[0183] Corresponding to Example 5, a shaft core is provided, such as Figure 16-17 As shown, the magnetic element 7 in the shaft core is replaced with a magnetic element or conductor 17 that corresponds to the inductor element 21 to realize electromagnetic induction.

[0184] Furthermore, the magnetic component or conductor 17 corresponding to the inductor 21 can be a magnet or a metal rod. The metal rod can be a commonly used conductive metal or alloy, such as an aluminum rod, copper rod, silver rod, or other metals with good conductivity. Example

[0185] A keyboard is provided with keys or switches 3 as described in the foregoing embodiments. Example

[0186] A laptop computer having a keyboard, keys, or hinge 3 as described in the foregoing embodiments. Example

[0187] An electronic device is provided with a keyboard, buttons or a pivot 3 as described in the foregoing embodiments.

[0188] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.

Claims

1. A keyboard provided with a PCB and a key, the key being connected to the PCB, the PCB being provided with a magnetic sensor corresponding to the key, the key being provided with a magnetic member, characterized in that, The magnetic component is rotatable relative to the magnetic sensor; the button is provided with a shaft core, which moves toward the magnetic sensor when the button is pressed, and the magnetic component is rotatably mounted on the shaft core; the magnetic component and the shaft core are rotatably connected via a bearing, the magnetic component is connected to the inner ring of the bearing, the shaft core is connected to the outer ring of the bearing, the magnetic component is connected to the inner ring of the bearing via a guide post, the guide post is connected to the inner ring of the bearing via a spline structure, the shaft core is connected to the outer ring of the bearing via a bushing, the bushing and the outer ring of the bearing are interference fit, the bushing and the shaft core are engaged, the bushing is provided with a buckle, the shaft core is provided with a slot, and the guide post is provided with a guide groove or guide block that matches the guide ring.

2. The keyboard of claim 1, wherein, When the button is pressed, the magnetic component moves towards the magnetic sensor. During this movement, the magnetic component can rotate relative to the magnetic sensor, and this rotation occurs at least partly during its movement. The magnetic component is a magnet. The button has an elastic element; when the button is released, it returns to its original position under the action of the elastic element. The elastic element is a spring. The button has a guide component, allowing the magnetic component to move towards the magnetic sensor along its guide trajectory. At least a portion of this guide trajectory is a spiral with a gradually changing pitch. The pitch of the spiral portion furthest from the magnetic sensor is smaller than that of the portion closer to the magnetic sensor. The guide component is a guide ring with guide blocks or guide grooves. When the guide ring has guide blocks, the guide blocks protrude towards the axis of the guide ring. In the design, the guide groove is formed on the inner wall of the guide ring. The magnetic component can rotate around an axis that passes through the magnetic sensor and is coaxial with the vertical center line of the magnetic sensor. The magnetic sensor is soldered onto the PCB. The button has a base and a top cover. The bottom end of the base is connected to the PCB and has a protruding post. The PCB has a recessed hole, and the protruding post is inserted into the recessed hole on the PCB. There are two protruding posts. The guide ring is set on the inner surface of the base. The top cover is connected to the base to form an accommodating space. The elastic component is set in the accommodating space. The lower part of the shaft core abuts against the elastic component. The shaft core abuts against the elastic component through the bushing. The upper part of the shaft core can slide out of the top cover. The top cover is fastened to the base. A cross shaft is set on the upper part of the shaft core. The elastic component is sleeved on the outside of the guide ring and the outside of the guide post. The magnetic component is set in the hole at the bottom end of the guide post and is interference-fitted with the guide post.

3. A key provided with a shaft core, said shaft core being provided with a magnetic member, characterized in that, The magnetic component is rotatable relative to the shaft core; the magnetic component and the shaft core are rotatably connected via a bearing, the magnetic component is connected to the inner ring of the bearing, the shaft core is connected to the outer ring of the bearing, the magnetic component is connected to the inner ring of the bearing via a guide post, the guide post and the inner ring of the bearing are connected via a spline structure, the shaft core is connected to the outer ring of the bearing via a bushing, the bushing and the outer ring of the bearing are interference fit, the bushing and the shaft core are engaged, the bushing is provided with a buckle, the shaft core is provided with a groove, and the guide post is provided with a guide groove or guide block that matches the guide ring.

4. The key of claim 3, wherein When the button is pressed, the magnetic component moves with the shaft. During this movement, the magnetic component can rotate relative to the shaft. The magnetic component can rotate relative to the shaft at least partially during this movement. The magnetic component can rotate about an axis coaxial with the vertical center line of the shaft. An elastic element is provided. When the button is released, the button resets under the action of the elastic element. When the button is released, the magnetic component moves back to its original position with the shaft. During this reset movement, the magnetic component can rotate relative to the shaft. The magnetic component can rotate relative to the shaft at least partially during this reset movement. The magnetic component is a magnet, and the elastic element is a spring. A guide element is provided on the button, and the magnetic component can move along the guide path of the guide element. At least a portion of the guide path is a spiral with a gradually changing pitch, moving away from the magnetic guide. The pitch of the helical portion at one end of the guide ring is smaller than the pitch of the helical portion closer to the guide ring. The guide ring is a guide ring, and the guide ring is provided with a guide block or a guide groove. When the guide ring is provided with a guide block, the guide block protrudes towards the axis of the guide ring. When the guide ring is provided with a guide groove, the guide groove is formed in the inner wall of the guide ring. A base and a top cover are provided. The bottom end of the base is provided with two protruding posts. The guide ring is disposed on the inner surface of the base. The top cover and the base are connected to form an accommodating space. The elastic element is disposed in the accommodating space. The lower part of the shaft core abuts against the elastic element. The shaft core abuts against the elastic element through the bushing. The upper part of the shaft core can slide out of the top cover. The top cover is fastened to the base. A cross shaft is provided on the upper part of the shaft core. The elastic element is sleeved on the outside of the guide ring. The elastic element is sleeved on the outside of the guide post. The magnetic element is disposed in the hole at the bottom end of the guide post. The magnetic element is interference-fitted with the guide post.

5. A shaft core of a key, said shaft core being provided with a magnetic member, characterized by The magnetic component is rotatable relative to the shaft core; the magnetic component and the shaft core are rotatably connected via a bearing, the magnetic component is connected to the inner ring of the bearing, the shaft core is connected to the outer ring of the bearing, the magnetic component is connected to the inner ring of the bearing via a guide post, the guide post is connected to the inner ring of the bearing via a spline structure, the shaft core is connected to the outer ring of the bearing via a bushing, the bushing and the outer ring of the bearing are interference fit, the bushing and the shaft core are engaged, the bushing is provided with a buckle, the shaft core is provided with a groove, and the guide post is provided with a guide groove or guide block.

6. The shaft core of claim 5, wherein The magnetic component is rotatable about an axis coaxial with the vertical center line of the shaft core. The magnetic component is a magnet. When a guide block is provided on the guide post, the guide block is located on the outer surface of the guide post. When a guide groove is provided on the guide post, the guide groove is located on the outer surface of the guide post. When a guide groove is provided on the guide post, at least a portion of the guide groove is spirally wound around the outer surface of the guide post. The spiral is a spiral with a gradually changing pitch, and the pitch of the spiral portion away from the bottom of the guide post is smaller than the pitch of the spiral portion closer to the bottom of the guide post. A cross shaft is provided on the upper part of the shaft core. The magnetic component is located in the hole at the bottom of the guide post, and the magnetic component is interference-fitted with the guide post.

7. A keyboard provided with a PCB and a key, the key being connected to the PCB, the PCB being provided with an inductive element corresponding to the key, the key being provided with a conductor or a magnetic element, characterized in that, The conductor or magnetic component is rotatable relative to the inductive element; the button is provided with a shaft core, which moves toward the inductive element when the button is pressed; the conductor or magnetic component is rotatably mounted on the shaft core; the conductor or magnetic component and the shaft core are rotatably connected via a bearing, the conductor or magnetic component is connected to the inner ring of the bearing, the shaft core is connected to the outer ring of the bearing, the conductor or magnetic component is connected to the inner ring of the bearing via a guide post, the guide post is connected to the inner ring of the bearing via a spline structure, the shaft core is connected to the outer ring of the bearing via a bushing, the bushing and the outer ring of the bearing are interference fit, the bushing and the shaft core are engaged, the bushing is provided with a buckle, the shaft core is provided with a slot, and the guide post is provided with a guide groove or guide block that matches the guide ring.

8. The keyboard of claim 7, wherein, When the button is pressed, the conductive or magnetic element moves toward the inductor. During this movement, the conductive or magnetic element can rotate relative to the inductor. The conductive or magnetic element can rotate relative to the inductor at least during a portion of its movement. The conductive or magnetic element is a magnet or a metal rod. When the conductive or magnetic element is a metal rod, it is an aluminum rod. The button has an elastic element. When the button is released, the button can reset under the action of the elastic element. The elastic element is a spring. The spring, the button is provided with a guide member, the conductive or magnetic element can move towards the inductor along the guide trajectory of the guide member, at least a part of the guide trajectory is a spiral, the spiral is a spiral with a gradually changing pitch, the pitch of the spiral portion away from the inductor is smaller than the pitch of the spiral portion closer to the inductor. The guide member is a guide ring, the guide ring is provided with a guide block or a guide groove. When the guide ring is provided with a guide block, the guide block protrudes towards the axis of the guide ring. When the guide ring is provided with a guide groove, the guide groove is formed in the guide ring. The conductive or magnetic component is rotatable about an axis passing through the inductor element. This axis is coaxial with the vertical center line of the inductor element. The inductor element is printed on the PCB and is an inductor coil. There are two inductor elements, respectively disposed on the upper and lower surfaces of the PCB. The PCB has through-holes for the conductive or magnetic component to pass through. The button has a base and a top cover. The bottom end of the base is connected to the PCB, and the bottom end of the base has a protruding post. The PCB has a recessed hole, and the protruding post is inserted into the recessed hole on the PCB for connection. There are two protruding posts. The guide ring is disposed on the inner surface of the base. The upper cover is connected to the base to form an accommodating space. The elastic element is disposed in the accommodating space. The lower part of the shaft core abuts against the elastic element. The shaft core abuts against the elastic element through the bushing. The upper part of the shaft core can slide out of the upper cover. The upper cover is fastened to the base. A cross shaft is disposed on the upper part of the shaft core. The elastic element is sleeved on the outside of the guide ring. The elastic element is sleeved on the outside of the guide post. The conductive or magnetic element is disposed in the hole at the bottom end of the guide post. The conductive or magnetic element is interference-fitted with the guide post.

9. A key provided with a shaft core, said shaft core being provided with a conductor, characterized in that The conductor is rotatable relative to the shaft core; the conductor and the shaft core are rotatably connected via a bearing, the conductor is connected to the inner ring of the bearing, the shaft core is connected to the outer ring of the bearing, the conductor is connected to the inner ring of the bearing via a guide post, the guide post and the inner ring of the bearing are connected via a spline structure, the shaft core is connected to the outer ring of the bearing via a bushing, the bushing and the outer ring of the bearing are interference fit, the bushing and the shaft core are engaged, the bushing is provided with a buckle, the shaft core is provided with a groove, and the guide post is provided with a guide groove or guide block that corresponds to and matches the guide ring.

10. The key of claim 9, wherein, When the button is pressed, the conductor moves with the shaft. During this movement, the conductor can rotate relative to the shaft, at least partially during which it rotates. The conductor can rotate about an axis coaxial with the vertical center line of the shaft. An elastic element is provided. When the button is released, the button resets under the action of the elastic element. The conductor, which is a metal rod (e.g., an aluminum rod), and the elastic element is a spring. A guide is provided on the button, allowing the conductor to move along its guide trajectory. At least a portion of this guide trajectory is a spiral with a gradually changing pitch. The pitch of the helical portion away from the magnetic guide is smaller than the pitch of the helical portion closer to the guide. The guide is a guide ring, which has a guide block or a guide groove. When the guide ring has a guide block, the guide block protrudes towards the axis of the guide ring. When the guide ring has a guide groove, the guide groove is formed on the inner wall of the guide ring. A base and a top cover are provided. Two protrusions are provided at the bottom end of the base. The guide ring is located on the inner surface of the base. The upper cover and the base are connected to form an accommodating space. The elastic element is disposed in the accommodating space. The lower part of the shaft core abuts against the elastic element. The shaft core abuts against the elastic element through the bushing. The upper part of the shaft core can slide out of the upper cover. The upper cover is fastened to the base. A cross shaft is provided on the upper part of the shaft core. The elastic element is sleeved on the outside of the guide ring. The elastic element is sleeved on the outside of the guide post. The conductor is disposed in the hole at the bottom end of the guide post. The conductor is interference-fitted with the guide post.

11. A shaft core of a key, said shaft core being provided with an electric conductor, characterized in that The conductor is rotatable relative to the shaft core; the conductor and the shaft core are rotatably connected via a bearing, the conductor is connected to the inner ring of the bearing, the shaft core is connected to the outer ring of the bearing, the conductor is connected to the inner ring of the bearing via a guide post, the guide post is connected to the inner ring of the bearing via a spline structure, the shaft core is connected to the outer ring of the bearing via a bushing, the bushing and the outer ring of the bearing are interference fit, the bushing and the shaft core are engaged, the bushing is provided with a buckle, the shaft core is provided with a groove, and the guide post is provided with a guide groove or guide block.

12. The shaft core of claim 11, wherein The conductor is rotatable about an axis, which is coaxial with the vertical center line of the shaft. The conductor is a metal rod, specifically an aluminum rod. When a guide block is provided on the guide post, the guide block is located on the outer surface of the guide post. When a guide groove is provided on the guide post, the guide groove is located on the outer surface of the guide post. When a guide groove is provided on the guide post, at least a portion of the guide groove is spirally wound around the outer surface of the guide post. The spiral is a gradually changing pitch spiral, with the pitch of the spiral portion farther from the bottom of the guide post being smaller than that of the spiral portion closer to the bottom of the guide post. A cross shaft is provided on the upper part of the shaft. The conductor is located in the hole at the bottom of the guide post, and the conductor is interference-fitted with the guide post.

13. A keyboard provided with a PCB and a key, the key being connected to the PCB, the PCB being provided with a magnetic sensor corresponding to the key, the key being provided with a magnetic piece, characterized in that, The magnetic component is rotatable relative to the magnetic sensor. When the button is pressed, the magnetic component moves toward the magnetic sensor. During this movement, the magnetic component is rotatable relative to the magnetic sensor, and at least part of this movement occurs. The button has a shaft. When the button is pressed, the shaft moves toward the magnetic sensor. The magnetic component is rotatably mounted on the shaft. The button has an elastic element. When the button is released, the button resets under the action of the elastic element. The magnetic component and the shaft are rotatably connected via a bearing. The magnetic component is rotatable about an axis.

14. A key provided with a shaft core, said shaft core being provided with a magnetic member, characterized in that, The magnetic component is rotatable relative to the shaft. When the button is pressed, the magnetic component moves with the shaft. During the movement of the magnetic component with the shaft, it can rotate relative to the shaft. The magnetic component can rotate relative to the shaft during at least a part of the movement with the shaft. The magnetic component can rotate about an axis. An elastic element is provided so that when the button is released, the button can reset under the action of the elastic element.

15. A shaft core of a key, said shaft core being provided with a magnetic member, characterized in that The magnetic component is rotatable relative to the shaft core. The magnetic component is rotatable about an axis coaxial with the vertical center line of the shaft core. The magnetic component and the shaft core are rotatably connected by a bearing. The magnetic component is connected to the inner ring of the bearing, and the shaft core is connected to the outer ring of the bearing.

16. A keyboard provided with a PCB and a key, the key being connected to the PCB, the PCB being provided with an inductive element corresponding to the key, the key being provided with a conductor or a magnetic element, characterized in that, The conductive or magnetic element is rotatable relative to the inductor. When the button is pressed, the conductive or magnetic element moves toward the inductor. During this movement, the conductive or magnetic element rotates relative to the inductor. At least a portion of the movement is rotatable relative to the inductor. The button has a shaft; when pressed, the shaft moves toward the inductor. The conductive or magnetic element is rotatably mounted on the shaft. The button has an elastic element; when the button is released, it resets under the action of the elastic element. The conductive or magnetic element is rotatably connected to the shaft via a bearing. The conductive or magnetic element can rotate about an axis.

17. A key provided with a core, said core being provided with an electric conductor, characterized in that The conductor is rotatable relative to the shaft. When the button is pressed, the conductor moves with the shaft. During the movement of the conductor with the shaft, it can rotate relative to the shaft. The conductor can rotate relative to the shaft during at least part of the movement with the shaft. The conductor can rotate about an axis. An elastic element is provided. When the button is released, the button can be reset under the action of the elastic element.

18. A shaft core of a key, said shaft core being provided with an electric conductor, characterized in that The conductor is rotatable relative to the shaft core. The conductor is rotatable about an axis coaxial with the vertical center line of the shaft core. The conductor and the shaft core are rotatably connected by a bearing. The conductor is connected to the inner ring of the bearing, and the shaft core is connected to the outer ring of the bearing.

19. A keyboard, characterized by It is provided with a button as described in any one of claims 3-4, 9-10, 14, 17 or with a shaft as described in any one of claims 5-6, 11-12, 15, 18.

20. A notebook computer, comprising: The keyboard is provided with any one of claims 1-2, 7-8, 13, 16, or with any one of claims 3-4, 9-10, 14, 17, or with any one of claims 5-6, 11-12, 15, 18.

21. An electronic device, comprising: The keyboard is provided with any one of claims 1-2, 7-8, 13, 16, or with any one of claims 3-4, 9-10, 14, 17, or with any one of claims 5-6, 11-12, 15, 18.

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