Central inductance shaft and keyboard

Abstract

The central inductance shaft comprises a base, an upper cover connected with the base, a button, a spring and a PCB, the center of the bottom of the button is connected with an inductance rod, the bottom in the base is provided with a guide hole, the PCB is provided with an electric inductor, and when the button moves downwards to the tail end of the stroke, the inductance rod is connected with the induction rod. The inductance bar penetrates through the coil and triggers the electric inductor to achieve circuit conduction, and the button comprises a button body and two guide damping structures. The guide damping structure comprises a first side edge arranged on the left side or the right side of the button body, a second side edge arranged beside the first side edge and distributed with the first side edge at an interval, and a striker located at a gap between the first side edge and the second side edge, and the striker is in a sheet shape and has elasticity. The innovative design of the utility model lies in a unique guide damping structure which is composed of two side edges and an elastic impact piece, and aims to improve the touch feeling and acoustic experience of a traditional button in use, reduce the generation of noise and make the use of the button more quiet.

Description

Technical Field

[0001] The utility model relates to the field of keyboards, and in particular to a central inductance shaft and a keyboard. Background Art

[0002] Traditional keyboard switches have some design deficiencies, especially in terms of user experience. One notable issue is that they typically achieve key actuation by colliding the side ridges with the housing, which often results in loud noise and strong vibrations.

[0003] Over extended periods of use, this design can cause hand fatigue or discomfort, as each keypress is accompanied by noticeable vibration and impact. Furthermore, the loud noise can be disruptive in a quiet office environment, affecting the work efficiency of other colleagues. Utility Model Content

[0004] In view of this, the utility model provides a central inductor shaft. The innovative design lies in its unique guided shock-absorbing structure, which consists of two side ridges and an elastic impact member, aiming to improve the tactile and acoustic experience of traditional buttons during use; when the user presses the button, the impact member can collide with the outer shell, utilizing the elastic characteristics of the impact member to produce soft tactile feedback and reduce noise, making the button quieter to use.

[0005] The purpose of the utility model is achieved through the following technical solutions:

[0006] A central inductor shaft includes a base, an upper cover connected to the base, a button, a spring and a PCB board. The button is installed in a sliding manner with the base. The button is connected to an inductor rod. A guide hole is provided in the bottom of the base. The PCB board is provided with an electric inductor. When the button descends to the end of its stroke, the inductor rod passes through a coil to trigger the electric inductor to achieve circuit conduction. The button includes a button body and two guide shock-absorbing structures provided on the left and right sides of the button body. The guide shock-absorbing structures include a first side rib provided on the left or right side of the button body, a second side rib provided next to the first side rib and spaced apart from the first side rib, and an impact piece located in the gap between the first side rib and the second side rib. The impact piece is in the form of a thin sheet and has elasticity. The highest point of the impact piece is higher than the highest point of the first side rib and the second side rib.

[0007] This inductive shaft has a unique guided shock-absorbing structure, which consists of two side ridges and an elastic impact piece, and is designed to improve the tactile and acoustic experience of traditional buttons during use. Specifically, the design of the guided shock-absorbing structure cleverly divides the side ridges of the button into two parts, leaving a gap in the middle to accommodate the impact piece. When the user presses the button, the impact piece can collide with the shell, and the elastic characteristics of the impact piece are used to produce soft tactile feedback. This feedback not only improves the user's operating experience, but the elastic deformation generated when the impact piece contacts the shell can effectively absorb the impact force, reduce the generation of noise, and make the button quieter to use. The thin sheet design of the impact piece gives it good elastic properties, which enables it to effectively absorb the impact force when it is hit and reduce the generation of noise. The design of the shock-absorbing button not only improves the user experience, but also takes into account the practicality and durability of the product.

[0008] Preferably, the coil is arranged on a PCB board, and a guide hole is provided on the inner bottom of the base. The inductor rod passes through the guide hole and then through the coil to trigger the inductor to realize the conduction of the circuit.

[0009] A guide hole in the base provides a clear path for the inductor, ensuring it follows the intended path as it passes through the coil. This prevents misalignment and misdirection, preventing false or incomplete triggering of the circuit. This improves the stability and reliability of the entire circuit. Once the inductor successfully passes through the guide hole and continues across the coil, electromagnetic induction between the two immediately triggers the circuit to conduct, completing the switching operation without the need for additional physical contact. This contactless triggering method significantly reduces the risk of mechanical wear and extends the device's lifespan.

[0010] Preferably, the coil is arranged on a PCB board, a column is provided at the bottom of the base, a longitudinal channel for the inductor to move up and down is provided inside the column, the longitudinal channel passes through the coil, and the inductor moves in the longitudinal channel and passes through the coil to trigger the inductor to achieve circuit conduction.

[0011] A longitudinal channel within the base's pillars provides a precise trajectory for the sensor, ensuring linearity and stability during its upward and downward movement, avoiding unnecessary drift or wobbling and ensuring accurate triggering every time. This channel's orientation ensures low friction during the sensor's movement, maintaining excellent mechanical properties and durability even after prolonged, high-frequency reciprocating motion, significantly extending the product's lifespan.

[0012] Preferably, the coil is arranged on the base.

[0013] The coil is arranged on the base, and the inductor rod can more easily pass through the coil during movement, thereby avoiding the problem of circuit mis-triggering or failure to trigger due to position deviation, and improving the stability and reliability of the entire circuit.

[0014] Preferably, the inductor rod is cylindrical, conical, truncated cone, square column or flat rod-shaped.

[0015] As a key component of triggering the inductor, the shape of the inductor directly affects the efficiency and reliability of signal transmission. Several preferred geometric shapes—cylinder, cone, truncated cone, square column, and flat rod—each possess unique physical and engineering advantages designed to maximize the overall performance of the device:

[0016] Cylindrical inductor: With its uniform cross-sectional dimensions, it ensures stable and consistent signal strength when triggered at different positions, making it particularly suitable for applications requiring strict linear response.

[0017] Conical / truncated cone-shaped inductor rods: This type of nonlinear, gradient cross-section design helps adjust trigger sensitivity within a specific travel range, facilitating more precise motion recognition within a limited space. It is suitable for operating modes that require distinguishing force differences.

[0018] Square columnar inductor rod: The sharp edges at the four corners increase the contact area with the wall of the guide hole, which is beneficial to improve the guiding accuracy and reduce the lateral swing. It is particularly suitable for high-end applications that pursue extremely high straightness and positioning accuracy.

[0019] Flat rod-shaped inductor: The flat shape reduces vertical space occupation while being more rigid in parallel planes, making it suitable for compact designs and ensuring excellent mechanical stability and electrical performance even in confined spaces.

[0020] Preferably, the inductor rod is a metal rod.

[0021] The inductor rod is made of aluminum or copper. Compared to other common metals, aluminum and its alloys have a lower density, resulting in lighter weight for a given volume. This reduces the load on the entire system, improving operational feel and responsiveness, especially in high-frequency applications. While aluminum's conductivity isn't as high as copper's, it's sufficient for signal transmission in inductor shaft designs while avoiding excessive manufacturing costs. Aluminum alloys, by adding trace elements, can improve conductivity to a certain extent, balancing cost-effectiveness and performance. Pure aluminum easily forms a dense oxide film on its surface, offering excellent resistance to oxidation and corrosion in natural environments. Even under prolonged exposure to humidity or dust, it maintains stable physical and chemical properties, extending the service life of the inductor shaft. Aluminum and its alloys possess excellent ductility and plasticity, making it easy to create complex shapes through extrusion and stamping. This simplifies the production process, shortens lead times, and opens up a wide range of possibilities for customized designs. As a recyclable material, aluminum and aluminum alloy products are relatively easy to dispose of, aligning with current societal initiatives for green manufacturing and contributing to a sustainable industrial ecosystem. The conductivity of copper is significantly higher than that of aluminum, and it has good conductive properties.

[0022] Preferably, the button body includes an upper button and a lower button that are separately connected, and the impact member is provided on the upper button or the lower button.

[0023] The button body features a unique split structure, cleverly separating the upper and lower buttons. This design not only provides greater product flexibility but also offers unprecedented user convenience. Like two independent wings, the upper and lower buttons each have their own independent design space, allowing designers to unleash their creativity and select materials with varying properties to create their respective appearances and textures. Imagine the upper button made of wear-resistant metal, conveying a calm and elegant feel, while the lower button is made of lightweight plastic, imparting a light and lively feel. This clever combination of materials creates a layered and rich appearance, both visually and tactilely. Beyond material choice, the split design offers endless color combinations. The upper button can be a vibrant color, such as bright orange or vibrant green, while the lower button can be a contrasting color, such as pure white or deep black. This color combination not only makes the product more attractive but also provides a pleasant user experience. Furthermore, the split design significantly simplifies the overall structural complexity, making the production process more efficient and effectively controlling costs. At the same time, due to the independence of the upper button and the lower button, when any one of the components fails, the user only needs to replace the corresponding component without replacing the entire button, saving maintenance costs.

[0024] Preferably, the first side ridges are provided on the upper button and / or the lower button, and the second side ridges are provided on the upper button and / or the lower button.

[0025] The first side rib and the second side rib can be set on the upper button or the lower button according to actual needs. This design provides more freedom, allowing the button to better adapt to different usage scenarios and user habits.

[0026] Preferably, there is a gap between the impact member and the first side rib, and there is also a gap between the impact member and the second side rib.

[0027] A gap is left between the impact member and both the first and second side ribs. This design not only ensures a smooth and comfortable button press, but also reduces direct contact between components, thereby reducing the likelihood of wear and damage. The gap also absorbs and disperses the impact force, extending the button's service life.

[0028] Preferably, a protrusion is provided on the upper surface of the impact member, and the highest point of the protrusion is higher than the highest point of the first side ridge and the second side ridge.

[0029] A protrusion is carefully designed on the upper surface of the impact member, and the highest point of the protrusion is higher than the highest points of the first and second side ribs. This detailed design allows the impact member to contact the shell before the first and second side ribs when the button rebounds, thereby playing a shock-absorbing role and providing button pressing feedback, allowing users to feel a clear tactile response during use, improving the accuracy and comfort of operation.

[0030] Preferably, the protrusion is strip-shaped.

[0031] The raised design adopts a strip shape, which can provide uniform support force when pressing, making the pressing process more stable and smooth.

[0032] Preferably, the protrusion is located on the upper surface of the end portion of the impact member, and the first side ridges and the second side ridges are arranged in parallel.

[0033] The protrusion is positioned on the upper surface of the end of the impact member. This position selection allows the impact member to contact the housing before the first and second side ribs when the button rebounds, thereby playing a shock-absorbing role and providing button pressing feedback. The parallel arrangement of the first and second side ribs can ensure that the button maintains a consistent force state in both the vertical and horizontal directions during the pressing process. This consistency not only improves the button pressing accuracy, but also enables the button to maintain stable performance during long-term use. The design of parallel side ribs also helps to reduce friction loss and extend the service life of the button, while also reducing the noise generated by friction and improving the user experience.

[0034] Preferably, the impact member is integrally connected to the upper button or the lower button.

[0035] The impact member is integrally molded with the upper or lower button. This manufacturing process not only simplifies the production process and improves efficiency, but also significantly enhances the overall strength and durability of the product. This one-piece design eliminates the gaps and looseness that can occur with traditional splicing methods, ensuring the button maintains a good seal and stability in all environments. This design not only demonstrates strict control over product quality, but also reflects meticulous attention to user needs.

[0036] A keyboard comprises the central inductance shaft described above, which has low impact sound and a rebound feel.

[0037] Compared with the prior art, the present invention has the following beneficial effects:

[0038] The central inductive shaft of the present utility model has a unique guided shock-absorbing structure, which consists of two side ribs and an elastic impact piece, and is intended to improve the tactile and acoustic experience of traditional buttons during use. Specifically, the design of the guided shock-absorbing structure cleverly divides the side ribs of the button into two parts, leaving a gap in the middle to accommodate the impact piece. When the user presses the button, the impact piece can collide with the shell, and the elastic characteristics of the impact piece are used to produce soft tactile feedback. This feedback not only improves the user's operating experience, but also the elastic deformation generated when the impact piece contacts the shell can effectively absorb the impact force, reduce the generation of noise, and make the button quieter to use. The thin sheet design of the impact piece gives it good elastic properties, which enables it to effectively absorb the impact force when it is hit and reduce the generation of noise. The design of the shock-absorbing button not only improves the user experience, but also takes into account the practicality and durability of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0040] Figure 1 This is an exploded view of the central inductor axis of Example 1 of the present utility model.

[0041] Figure 2 This is a partial structural diagram of the central inductor axis of Example 1 of the present utility model.

[0042] Figure 3This is a partial exploded view of the central inductor axis of Example 1 of the present utility model.

[0043] Figure 4 This is a structural diagram of the flat rod-shaped inductor according to Example 1 of the present utility model.

[0044] Figure 5 This is a structural diagram of the base of Example 1 of the present utility model.

[0045] Figure 6 This is an exploded view of the central inductor axis of Example 2 of the present utility model.

[0046] Figure 7 This is a bottom view of the central inductor axis of Example 2 of the present invention, in which the pillar is a rectangle.

[0047] Figure 8 This is a bottom view of the central inductor axis of Example 2 of the present invention, in which the pillar is a rounded rectangle.

[0048] Figure 9 This is a bottom view of the central inductor axis of Example 2 of the present invention, in which the pillar is a chamfered rectangle.

[0049] Figure 10 This is a bottom view of the central inductor axis of Example 2 of the present invention, in which the column is elliptical.

[0050] Figure 11 This is a bottom view of the central inductor axis of Example 2 of the present invention, in which the column is an oblong.

[0051] Figure 12 This is a bottom view of the central inductor axis of Example 2 of the present invention, in which the pillar is circular.

[0052] Figure 13 This is an exploded view of the central inductor axis of Example 3 of the present utility model.

[0053] Figure 14 This is an exploded view of the base and coil of Example 3 of the present utility model. DETAILED DESCRIPTION

[0054] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0055] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0056] It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further defined and explained in the subsequent figures. In the description of the embodiments of the present application, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", etc. is based on the orientation or position relationship shown in the drawings, or is the orientation or position relationship in which the product of the application is usually placed when in use, or is the orientation or position relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0057] It should be noted that, unless there is any conflict, the embodiments and features in the embodiments of this application can be combined with each other.

[0058] The technical solution in this application will be described below with reference to the accompanying drawings. Example 1

[0059] This embodiment provides a central inductor shaft, including a base 100, an upper cover 200 connected to the base 100, a button 300, a spring 600, and a PCB board 700. The button 300 is slidably mounted on the base 100. An inductor rod 400 is connected to the center of the bottom of the button 300. A guide hole 110 is provided at the bottom of the base 100. The PCB board is provided with an inductor 500. When the button 300 moves downward to the end of its stroke, the inductor rod 400 passes through the coil 800 to trigger the inductor 500 to achieve circuit conduction. The button 300 includes a button. The button body 310 and two guide shock-absorbing structures 320 are arranged on the left and right sides of the button body 310. The guide shock-absorbing structures 320 include a first side rib 321 arranged on the left or right side of the button body 310, a second side rib 322 arranged next to the first side rib 321 and spaced apart from the first side rib 321, and an impact member 323 located in the gap between the first side rib 321 and the second side rib 322. The impact member 323 is thin and elastic, and the highest point of the impact member 323 is higher than the highest point of the first side rib 321 and the second side rib 322.

[0060] This inductive shaft features a unique guide and shock-absorbing structure 320, which consists of two side ridges and an elastic impact member 323, designed to improve the tactile and acoustic experience of the traditional button 300 during use. Specifically, the design of the guide and shock-absorbing structure 320 cleverly divides the side ridges of the button 300 into two parts, leaving a gap in the middle to accommodate the impact member 323. When the user presses the button 312, the impact member 323 can collide with the housing, utilizing the elastic characteristics of the impact member 323 to produce soft tactile feedback. This feedback not only enhances the user's operating experience, but the elastic deformation generated when the impact member 323 contacts the housing can effectively absorb the impact force, reduce noise generation, and make the button 300 quieter to use. The thin sheet design of the impact member 323 gives it good elastic properties, which enables it to effectively absorb the impact force when it is hit and reduce noise generation. The design of the shock-absorbing button 300 not only enhances the user experience, but also takes into account the practicality and durability of the product.

[0061] In this embodiment, the coil 800 is disposed on the PCB board, and a guide hole 110 is provided on the inner bottom of the base. The inductor rod passes through the guide hole and then through the coil 800 to trigger the inductor to achieve circuit conduction.

[0062] A guide hole in the base provides a clear path for the inductor rod to pass through, ensuring it follows the intended path as it passes through coil 800. This prevents mis-triggering or non-triggering of the circuit due to misalignment, improving the stability and reliability of the entire circuit. When the inductor rod successfully passes through the guide hole and then continues through coil 800, the electromagnetic induction between the two immediately triggers the circuit to conduct, completing the switching action without the need for additional physical contact. This contactless triggering method significantly reduces the risk of mechanical wear and extends the life of the device.

[0063] In this embodiment, the inductive rod 400 is in the shape of a truncated cone. In other embodiments, the inductive rod may be in the shape of a cylinder, a cone, a square column, or a flat rod.

[0064] As a key component of trigger sensor 500, the shape of inductor rod 400 directly impacts the efficiency and reliability of signal transmission. A frustum-shaped inductor rod with a nonlinear, tapered cross-section helps adjust trigger sensitivity within a specific travel range, enabling more precise motion recognition within a limited space. This design is suitable for operating modes that require distinguishing between different force levels.

[0065] In other embodiments, several other geometric shapes are possible, including cylinders, cones, square pillars, and flat rods, each of which has unique physical and engineering advantages, aiming to maximize the overall performance of the device:

[0066] Cylindrical inductor: With its uniform cross-sectional dimensions, it ensures stable and consistent signal strength when triggered at different positions, making it particularly suitable for applications requiring strict linear response.

[0067] Square columnar inductor rod: The sharp edges at the four corners increase the contact area with the wall of the guide hole, which is beneficial to improve the guiding accuracy and reduce the lateral swing. It is particularly suitable for high-end applications that pursue extremely high straightness and positioning accuracy.

[0068] Flat rod-shaped inductor: The flat shape reduces vertical space occupation while being more rigid in parallel planes, making it suitable for compact designs and ensuring excellent mechanical stability and electrical performance even in confined spaces.

[0069] In this embodiment, the inductor rod is a metal rod.

[0070] The inductor rod is made of aluminum or copper. Compared to other common metals, aluminum and its alloys have a lower density, resulting in lighter weight for a given volume. This reduces the load on the entire system, improving operational feel and responsiveness, especially in high-frequency applications. While aluminum's conductivity isn't as high as copper's, it's sufficient for signal transmission in inductor shaft designs while avoiding excessive manufacturing costs. Aluminum alloys, by adding trace elements, can improve conductivity to a certain extent, balancing cost-effectiveness and performance. Pure aluminum easily forms a dense oxide film on its surface, offering excellent resistance to oxidation and corrosion in natural environments. Even under prolonged exposure to humidity or dust, it maintains stable physical and chemical properties, extending the service life of the inductor shaft. Aluminum and its alloys possess excellent ductility and plasticity, making it easy to create complex shapes through extrusion and stamping. This simplifies the production process, shortens lead times, and opens up a wide range of possibilities for customized designs. As a recyclable material, aluminum and aluminum alloy products are relatively easy to dispose of, aligning with current societal initiatives for green manufacturing and contributing to a sustainable industrial ecosystem. The conductivity of copper is significantly higher than that of aluminum, and it has good conductive properties.

[0071] In this embodiment, the button body 310 includes an upper button 311 and a lower button 312 that are separately connected, and the impact member 323 is disposed on the upper button 311 or the lower button 312 .

[0072] The button body 310 features a unique split structure, cleverly separating the upper button 311 from the lower button 312. This design not only provides greater flexibility but also offers unprecedented user convenience. Like two independent wings, the upper and lower buttons 311 and 312 each possess independent design space, allowing designers to unleash their creativity and select materials with varying properties to create their respective appearances and textures. Imagine the upper button 311 crafted from wear-resistant metal, imparting a calm and elegant feel, while the lower button 312 is crafted from lightweight plastic, creating a light and lively feel. This clever combination of materials creates a rich and layered feel, both visually and tactilely. Beyond material choice, the split design offers endless color combinations. The upper button 311 can be finished in a vibrant color, such as bright orange or vibrant green, while the lower button 312 can be a contrasting color, such as pure white or deep black. This color combination not only makes the product more attractive in appearance but also provides a pleasant user experience. Furthermore, the split design significantly simplifies the overall structural complexity, making the production process more efficient and effectively controlling costs. Furthermore, due to the independence of upper button 311 and lower button 312, if either component fails, the user only needs to replace the corresponding component, without having to replace the entire button 300, thus saving maintenance costs.

[0073] In this embodiment, a portion of the first side rib 321 is disposed on the upper button 311 and the remaining portion is disposed on the lower button 312 ; a portion of the second side rib 322 is disposed on the upper button 311 and the remaining portion is disposed on the lower button 312 .

[0074] In this embodiment, there is a gap between the impact member 323 and the first side rib 321 , and there is also a gap between the impact member 323 and the second side rib 322 .

[0075] A gap is left between the impact member 323 and both the first side rib 321 and the second side rib 322. This design not only ensures a smooth and comfortable pressing of the button 300 but also reduces direct contact between components, thereby reducing the likelihood of wear and damage. The presence of the gap also absorbs and disperses the impact force, extending the service life of the button 300.

[0076] In this embodiment, a protrusion 324 is provided on the upper surface of the impact member 323 , and the highest point of the protrusion 324 is higher than the highest point of the first side rib 321 and the second side rib 322 .

[0077] A protrusion 324 is carefully designed on the upper surface of the impact member 323. The highest point of the protrusion 324 is higher than the highest point of the first side rib 321 and the second side rib 322. This detailed design allows the impact member 323 to contact the shell before the first side rib 321 and the second side rib 322 when the button 300 rebounds, so as to play a shock-absorbing role and provide pressing feedback of the button 300, so that the user can feel a clear tactile response during use, thereby improving the accuracy and comfort of the operation.

[0078] In this embodiment, the protrusion 324 is in a strip shape.

[0079] The protrusion 324 is designed in a strip shape, and the strip protrusion 324 can provide uniform support force when pressing, making the pressing process more stable and smooth.

[0080] In this embodiment, the protrusion 324 is located on the upper surface of the end portion of the impact member 323 , and the first side rib 321 and the second side rib 322 are arranged in parallel.

[0081] The protrusion 324 is positioned on the upper surface of the end of the impact member 323. The choice of this position allows the impact member 323 to contact the housing before the first side rib 321 and the second side rib 322 when the button 300 rebounds, so as to play a shock-absorbing role and provide pressing feedback of the button 300. The parallel arrangement of the first side rib 321 and the second side rib 322 can ensure that the button 300 maintains a consistent force state in both the vertical and horizontal directions during the pressing process. This consistency not only improves the pressing accuracy of the button 300, but also enables the button 300 to maintain stable performance during long-term use. The design of parallel side ribs also helps to reduce friction loss and extend the service life of the button 300, while also reducing the noise generated by friction and improving the user experience.

[0082] In this embodiment, the impact member 323 is integrally connected to the upper button 311. In other embodiments, the impact member can also be integrally connected to the lower button.

[0083] The impact member 323 is integrally molded and connected to the upper button 311. This manufacturing process not only simplifies the production process and improves efficiency, but also significantly enhances the overall strength and durability of the product. This one-piece design eliminates the gaps and looseness that can occur with traditional splicing methods, ensuring that the button 300 maintains excellent sealing and stability in various environments. This design not only demonstrates strict control over product quality, but also reflects meticulous consideration for user needs. Example 2

[0084] The difference from Example 1 is that a pillar 900 is provided at the bottom of the base 100, and a longitudinal channel 910 is provided inside the pillar 900 for the inductor rod 400 to move up and down. The longitudinal channel 910 passes through the coil 800, and the coil 800 is provided on the PCB board 700. The inductor rod 400 moves in the longitudinal channel 910 and can pass through the coil 800 to trigger the inductor 500 to achieve circuit conduction.

[0085] The longitudinal channel within the pillar 900 at the bottom of the base 100 provides a precise trajectory for the inductive rod 400, ensuring linearity and stability during its vertical movement, avoiding unnecessary drift or shaking, and ensuring accurate triggering every time. The longitudinal channel's design ensures low friction during movement, maintaining excellent mechanical properties and durability even after prolonged, high-frequency reciprocating motion, significantly extending the product's lifespan.

[0086] As attached Figure 7-12 As shown, the shape of the pillars can be varied and can be rectangular, rounded rectangular, chamfered rectangular, elliptical, oblong or circular. Example 3

[0087] In this embodiment, the coil 800 is disposed on the base 100 .

[0088] The coil 800 is arranged on the base 100, and the inductor rod 400 can more easily pass through the coil 800 during movement, avoiding the problem of circuit mis-triggering or failure to trigger due to position deviation, and improving the stability and reliability of the entire circuit.

[0089] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A central inductor axis, characterized in that: It includes a base, an upper cover connected to the base, a button, a spring and a PCB board. The button is installed in a sliding manner with the base. An inductor is connected to the center of the bottom of the button. The PCB board is provided with an electric inductor. When the button moves downward to the end of its stroke, the inductor passes through the coil to trigger the electric inductor to achieve circuit conduction. The button includes a button body and two guide shock-absorbing structures arranged on the left and right sides of the button body. The guide shock-absorbing structure includes a first side rib arranged on the left or right side of the button body, a second side rib arranged next to the first side rib and spaced apart from the first side rib, and an impact piece located in the gap between the first side rib and the second side rib. The impact piece is thin and elastic, and the highest point of the impact piece is higher than the highest point of the first side rib and the second side rib.

2. The central inductor axis according to claim 1, characterized in that The coil is arranged on the PCB board, and a guide hole is provided on the inner bottom of the base. The inductor rod passes through the guide hole and then passes through the coil to trigger the inductor to realize the conduction of the circuit.

3. The central inductor axis according to claim 1, characterized in that The coil is arranged on the PCB board, and a column is provided at the bottom of the base. A longitudinal channel for the inductor to move up and down is provided inside the column. The longitudinal channel passes through the coil. The inductor moves in the longitudinal channel and passes through the coil to trigger the inductor to achieve circuit conduction.

4. The central inductor axis according to claim 1, characterized in that The coil is arranged on the base.

5. The central inductor axis according to claim 1, characterized in that The inductor rod is cylindrical, conical, truncated cone, square column or flat rod.

6. The central inductor axis according to claim 1, characterized in that The inductor rod is a metal rod.

7. The central inductor axis according to claim 1, wherein: The button body includes an upper button and a lower button that are separately connected, and the impact member is arranged on the upper button or the lower button.

8. The central inductor axis according to claim 7, characterized in that The first side ribs are provided on the upper button and / or the lower button, and the second side ribs are provided on the upper button and / or the lower button.

9. The central inductor axis according to claim 1, characterized in that There is a gap between the impact member and the first side rib, and there is also a gap between the impact member and the second side rib.

10. A keyboard, characterized in that: The invention comprises a central inductive axis as claimed in any one of claims 1 to 9.

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