Integrated inductance shaft keyboard module

By designing an integrated inductive key switch keyboard module, the problems of low keyboard production efficiency and easy wear of mechanical key switches have been solved, achieving efficient assembly and long lifespan of inductive key switch keyboards, meeting the needs of high-speed production and multi-level signal output.

CN223977548UActive Publication Date: 2026-03-06DONGGUAN CITY KAIHUA ELECTRONICS
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520333144.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-27
Publication Date
2026-03-06
Estimated Expiration
2035-02-27

AI Technical Summary

Technical Problem

Existing keyboards suffer from low production efficiency, and mechanical key switches are prone to wear, leading to accidental key presses or failure to engage, which is detrimental to high-speed production and lifespan.

Method used

The keyboard module adopts an integrated inductor axis design. By integrating multiple inductor axes on the positioning plate, the combination structure of the positioning fixing plate and the main circuit board is used to fix and conduct the inductor axes. Combined with the setting of light guide components and coil circuit boards, the assembly efficiency and aesthetics are improved.

Benefits of technology

It improves production efficiency, reduces production costs, extends the lifespan of the keyboard, ensures precise linear conduction and multi-level signal output, and meets the needs of high-speed production and daily use.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223977548U_ABST
    Figure CN223977548U_ABST
Patent Text Reader

Abstract

The utility model discloses an integrated inductance shaft keyboard module, which comprises a positioning plate, a plurality of inductance shafts sequentially mounted on the positioning plate, and a total circuit board arranged between the inductance shafts and the positioning plate, and a plurality of mounting through grooves matched with the inductance shafts are formed on the positioning plate. Positioning fixing plates which are bent to extend upwards to penetrate through the main circuit board and are buckled with the inductance shaft are formed on the two sides of the mounting through groove, at least one positioning fixing groove is formed in each positioning fixing plate, and at least one positioning protruding block which protrudes outwards to extend into the positioning fixing grooves is formed on the two sides of the inductance shaft. According to the utility model, a plurality of inductance shafts are integrated and installed on one positioning plate, the assembling efficiency is effectively improved, the production cost is saved, the current production requirement is met, and the shaft body is of the inductance shaft structure, so that the accurate linear conduction of the keyboard module is ensured, the service life of the keyboard module is effectively ensured, and the daily use of people is facilitated.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of keyboard technology, and in particular to an integrated inductive axis keyboard module. Background Technology

[0002] The keyboard is the most commonly used and primary input device. Through the keyboard, English letters, Chinese characters, numbers, punctuation marks, etc., can be input into the computer, thereby issuing commands and inputting data.

[0003] Most keyboards on the market typically have a single key switch mounted on a separate bracket, with multiple switches requiring multiple brackets, resulting in a complex design, low production efficiency, and unsuitability for high-speed production. Furthermore, conventional keyboards generally use mechanical key switches. When these mechanical key switches are pressed, the moving and stationary contacts make contact, causing a short circuit and sending a signal to perform the corresponding operation. Over time, the contact surfaces of the moving and stationary contacts wear down, leading to frequent accidental key presses or loss of contact, which is detrimental to daily use. Utility Model Content

[0004] To address the aforementioned shortcomings, the purpose of this utility model is to provide an integrated inductive switch keyboard module, which integrates multiple inductive switches onto a single positioning plate, effectively improving assembly efficiency, saving production costs, meeting current production needs, and ensuring that the switch body is an inductive switch structure, which not only guarantees the precise linear conduction of this keyboard module, but also effectively guarantees the service life of this keyboard module, benefiting people's daily use.

[0005] The technical solution adopted by this utility model to achieve the above objectives is as follows:

[0006] An integrated inductive keyboard module includes a positioning plate, a plurality of inductive axes sequentially mounted on the positioning plate, and a main circuit board disposed between the inductive axes and the positioning plate. The positioning plate has a plurality of mounting slots that match the inductive axes. On both sides of the mounting slots, there are positioning fixing plates that are bent upward and extend through the main circuit board and engage with the inductive axes. At least one positioning fixing groove is formed on the positioning fixing plate. On both sides of the inductive axes, at least one positioning protrusion is formed that protrudes outward and extends into the positioning fixing groove.

[0007] As a further improvement of this utility model, the uppermost end of the positioning and fixing plate is formed with a guide mounting plate that extends outward and upward at an angle.

[0008] As a further improvement of this utility model, it also includes a light guide assembly disposed on the positioning plate. The light guide assembly includes a light guide plate disposed under the positioning plate, a reflective paper disposed under the light guide plate, and a light-emitting circuit board connected to the light guide plate and the reflective paper.

[0009] As a further improvement of this utility model, a first coil is provided on the main circuit board, which is located directly below the inductor shaft. A main circuit clearance groove is formed on the main circuit board for the positioning and fixing plate to pass through. A main circuit light guide clearance groove is formed on the main circuit board located below the inductor shaft.

[0010] As a further improvement of this utility model, it also includes a coil circuit board located between the inductor shaft and the positioning plate and electrically connected to the main circuit board. A second coil is provided on the coil circuit board, which is located directly below the inductor shaft. A coil circuit clearance groove for the positioning plate to pass through is formed on the coil circuit board, and a coil circuit light guide clearance groove located below the inductor shaft is formed on the coil circuit board.

[0011] As a further improvement of this utility model, it also includes a decorative cover disposed on the positioning plate and allowing the inductor shaft to protrude.

[0012] As a further improvement of this utility model, a keycap is correspondingly installed on the inductor shaft.

[0013] As a further improvement of this utility model, the inductor shaft includes a base fastened to the positioning and fixing plate, a balance frame assembly hinged to the base, a reset elastic element disposed between the balance frame assemblies, a metal part disposed on the balance frame assembly, and an upper cover disposed on the balance frame. The positioning protrusions are disposed on both sides of the base, and the keycap is disposed on the upper cover.

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

[0015] This keyboard module is configured to include a positioning plate, several inductor shafts sequentially mounted on the positioning plate, and a main circuit board positioned between the inductor shafts and the positioning plate. The positioning plate has several mounting slots that match the inductor shafts. On both sides of each mounting slot are positioning fixing plates that bend upwards, extend through the main circuit board, and engage with the inductor shafts. Each positioning fixing plate has at least one positioning fixing groove. On both sides of each inductor shaft are at least one positioning protrusion that protrudes outwards and enters the positioning fixing groove. The inductor shaft is inserted into the positioning fixing groove via the positioning protrusion, thereby securing itself between the two sets of positioning fixing plates. The purpose of fixing the inductor shafts to the positioning plate is to form a complete module structure by sequentially installing multiple inductor shafts on a positioning plate. This effectively improves assembly efficiency, reduces the cost and time of producing multiple brackets to install the inductor shafts separately, saves production costs, and effectively meets current production needs. Furthermore, the inductor shaft structure ensures precise linear conduction of the keyboard module and effectively guarantees its service life, which is beneficial for daily use. By placing the main circuit board between the inductor shafts and the positioning plate, the main circuit board is fixed between the two while the inductor shafts are fixed to the positioning plate, thus achieving the fixation of the main circuit board and realizing precise conduction.

[0016] The above is an overview of the utility model's technical solution. The following description, in conjunction with the accompanying drawings and specific embodiments, will further illustrate the utility model. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0018] Figure 2 This is an exploded view of the present invention;

[0019] Figure 3 This is a structural diagram of the decorative cover and a keycap in this utility model;

[0020] Figure 4 for Figure 3 Enlarged view of section A in the middle;

[0021] Figure 5 This is a schematic diagram of the structure of removing the decorative cover and a keycap when using the coil circuit board in this utility model;

[0022] Figure 6 for Figure 5 Enlarged view of section B;

[0023] In the diagram: 1. Positioning plate; 11. Mounting slot; 12. Positioning fixing plate; 121. Positioning fixing groove; 122. Guide mounting plate; 2. Inductor shaft; 21. Positioning protrusion; 22. Base; 23. Balance frame assembly; 24. Reset elastic element; 25. Metal part; 26. Top cover; 3. Main circuit board; 31. First coil; 32. Main circuit clearance groove; 33. Main circuit light guide clearance groove; 4. Light guide assembly; 41. Light guide plate; 42. Reflective paper; 43. Light-emitting circuit board; 5. Coil circuit board; 51. Second coil; 52. Coil circuit clearance groove; 53. Coil circuit light guide clearance groove; 6. Decorative cover; 7. Keycap. Detailed Implementation

[0024] To further illustrate the technical means and effects adopted by this utility model to achieve its intended purpose, the specific implementation methods of this utility model will be described in detail below with reference to the accompanying drawings and preferred embodiments.

[0025] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this 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 limitations on this utility model.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] Please refer to Figures 1 to 6This utility model provides an integrated inductor shaft 2 keyboard module, including a positioning plate 1, several inductor shafts 2 sequentially mounted on the positioning plate 1, and a main circuit board 3 disposed between the inductor shafts 2 and the positioning plate 1. The positioning plate 1 has several mounting slots 11 that match the inductor shafts 2. Both sides of the mounting slots 11 have positioning fixing plates 12 that are bent upward and extend through the main circuit board 3 and are engaged with the inductor shafts 2. The positioning fixing plates 12 have at least one positioning fixing groove 121. Both sides of the inductor shafts 2 have at least one positioning protrusion 21 that protrudes outward and extends into the positioning fixing groove 121. The inductor shaft 2 is inserted into the positioning and fixing groove 121 via the positioning protrusion 21, thereby fastening itself between the two sets of positioning and fixing plates 12, thus fixing the inductor shaft 2 onto the positioning plate 1. By sequentially installing multiple inductor shafts 2 onto a positioning plate 1 to form an integral module structure, the assembly efficiency is effectively improved, reducing the cost and time of producing multiple brackets to install the inductor shafts 2, saving production costs, and effectively meeting the needs of today's rapidly developing production. Furthermore, the shaft body is the structure of an inductor shaft 2, and the inductor shaft 2 uses a metal part to approach the coil to achieve signal transmission. The action of the relay does not require contact between the metal parts and the coil, reducing wear, improving the accuracy of conduction, and allowing different strokes to correspond to different operating signals, thereby achieving fine classification and meeting the needs of multi-level signal output. While ensuring the precise linear conduction of this keyboard module, it also effectively guarantees the service life of this keyboard module, which is beneficial to people's daily use. By setting the main circuit board 3 between the inductor shaft 2 and the positioning plate 1, the inductor shaft 2 is fixed to the positioning plate 1, and the main circuit board 3 is clamped between the two, thus achieving the fixation of the main circuit board 3 and realizing precise conduction.

[0029] To make it easier to mount the inductor shaft 2 onto the positioning plate 1, such as Figure 4 and Figure 6 As shown, the uppermost end of the positioning and fixing plate 12 has a guide mounting plate 122 that extends outward and upward. When the inductor shaft 2 is installed on the positioning plate 1, the positioning protrusion 21 on the inductor shaft 2 first contacts the guide mounting plate 122. Under the inclined guiding action of the guide mounting plate 122, the positioning protrusion 21 moves towards the two sets of positioning and fixing plates 12, thereby making the inductor shaft 2 more accurate and easier to install on the positioning plate 1, improving the production efficiency and installation accuracy of this keyboard module.

[0030] Preferred, such as Figures 1 to 2As shown, to make this keyboard module more practical, it also includes a light guide component 4 mounted on the positioning plate 1. The light guide component 4 includes a light guide plate 41 mounted under the positioning plate 1, a reflective paper 42 mounted under the light guide plate 41, and a light-emitting circuit board 43 connected to the light guide plate 41 and the reflective paper 42. The light-emitting circuit board 43 is connected to an external circuit and emits light. The light passes through the reflective paper 42 and the light guide plate 41 in sequence and is refracted onto the inductor shaft 2 at multiple angles, thereby achieving backlighting, improving the aesthetics of the keyboard module, making it more practical, and meeting the needs of different users.

[0031] Preferred, such as Figure 2 As shown, in order to make the keyboard module more robust, mounting holes for screws are formed at the four corners of the positioning plate 1, light guide plate 41, and reflective paper 42. By passing four sets of screws through the mounting holes at the four corners of the positioning plate 1, light guide plate 41, and reflective paper 42, the positioning plate 1, light guide plate 41, and reflective paper 42 are fixed, ensuring the normal operation of the keyboard module.

[0032] Regarding the specific structural configuration of the main circuit board 3, as follows: Figures 3 to 4 As shown, a first coil 31 is disposed on the main circuit board 3, located directly below the inductor shaft 2. When the inductor shaft 2 is pressed, the metal part inside it approaches the first coil 31, causing the wires within the electromagnetic field range to be induced, thereby transmitting signals outward to realize input. A main circuit clearance groove 32 is formed on the main circuit board 3 for the positioning and fixing plate 12 to pass through. When the positioning and fixing plate 12 extends upward, it passes through the main circuit clearance groove 32 and engages with the positioning protrusion 21. This achieves the simultaneous clearance of the positioning and fixing plate 12 and the simultaneous fixing of the main circuit board 3 between the positioning plate 1 and the inductor shaft 2, ensuring the normal operation of this keyboard module, effectively improving assembly efficiency, saving production costs, and meeting current production needs. The main circuit board 3 has a main circuit light guide clearance groove 33 located below the inductor shaft 2. By setting the main circuit light guide clearance groove 33 to make way for the light guide component 4, the light refracted from the light guide plate 41 and the reflective paper 42 can pass through the main circuit light guide clearance groove 33, thereby achieving a significant light and shadow effect, improving the aesthetics of the keyboard module, making the keyboard module more practical, and meeting the needs of different users.

[0033] Preferably, structures such as coils can also be set separately, such as... Figures 5 to 6As shown, specifically, this keyboard module also includes a coil circuit board 5 located between the inductor shaft 2 and the positioning plate 1 and electrically connected to the main circuit board 3. By separately setting a coil circuit board 5 between the inductor shaft 2 and the positioning plate 1, the coil circuit board 5 can be disassembled for maintenance, or it can be installed as a whole module with the inductor shaft 2 during production, thereby improving production efficiency. A second coil 51 is provided on the coil circuit board 5, located directly below the inductor shaft 2. When the inductor shaft 2 is pressed, its internal metal parts approach the second coil 51, causing the wires within the electromagnetic field range to be induced, thereby transmitting signals outward to realize input. The coil circuit board 5 has a coil circuit clearance groove 52 through which the positioning and fixing plate 12 passes. When the positioning and fixing plate 12 extends upward, it passes through the coil circuit clearance groove 52 and engages with the positioning protrusion 21. This achieves simultaneous clearance of the positioning and fixing plate 12 and fixation of the coil circuit board 5 between the positioning plate 1 and the inductor shaft 2, ensuring the normal operation of the keyboard module, effectively improving assembly efficiency, saving production costs, and meeting current production needs. The coil circuit board 5 also has a coil circuit light guide clearance groove 53 located below the inductor shaft 2. By setting the coil circuit light guide clearance groove 53 to make way for the light guide component 4, light refracted from the light guide plate 41 and the reflective paper 42 can pass through the coil circuit light guide clearance groove 53, thereby achieving a significant light and shadow effect, improving the aesthetics of the keyboard module, making the keyboard module more practical, and meeting the needs of different users.

[0034] Preferred, such as Figures 1 to 2 As shown, this keyboard module also includes a decorative cover 6 disposed on the positioning plate 1 and allowing the inductor shaft 2 to protrude. The color, outer frame shape, etc. of the decorative cover 6 can be set according to people's needs. The decorative cover 6 covers the positioning plate 1, thereby limiting and protecting the inductor shaft 2, and can also meet the different people's needs for the appearance of the keyboard, which is beneficial to people's daily use.

[0035] Preferred, such as Figures 1 to 6 As shown, keycaps 7 are installed on the inductor 2. The keycaps 7 can be pre-installed on the inductor 2 to form an integral module, so that the inductor 2 can be installed as an integral module when it is installed on the positioning plate 1, which further improves production efficiency. Furthermore, the color, pattern and other features on the keycaps 7 can be set according to people's needs, which further meets the different people's needs for the appearance of the keyboard and is beneficial to people's daily use.

[0036] Regarding the structural configuration of the inductor shaft 2, the inductor shaft 2 can be a conventional structure available on the market, such as including a base that can be mounted on a positioning plate, a top cover that is fastened to the base, a guide core that moves between the base and the top cover, a reset elastic element disposed between the guide core and the base, a metal part disposed on the guide core, positioning protrusions disposed on both sides of the base, and the keycaps disposed on the top cover. When the guide core is pressed, it causes the metal part to move downwards and closer to the coil, causing the wires within the electromagnetic field range to be induced, thereby transmitting signals outwards to achieve input. There is no need for contact between the metal part and the coil, reducing wear, improving the accuracy of conduction, and allowing different strokes to correspond to different operating signals, thus achieving fine-grained grading and meeting the needs of multi-level signal output. To meet people's demand for thinner and lighter keyboards, such as... Figures 1 to 6 As shown, the inductor shaft 2 can also be configured with a base 22 fastened to the positioning and fixing plate 12, a balance frame assembly 23 hinged to the base 22, a reset elastic element 24 disposed between the balance frame assemblies 23, a metal part 25 disposed on the balance frame, and an upper cover 26 disposed on the balance frame. The positioning protrusions 21 are disposed on both sides of the base 22, and the keycaps 7 are disposed on the upper cover 26. When the upper cover 26 is pressed, the balance frame is adjusted to deform downward, thereby driving the metal part 25 disposed on it to move downward and closer to the coil. The wires within the electromagnetic field range are induced, thereby transmitting signals outward to realize input. There is no need for contact between the metal part 25 and the coil, which reduces wear, improves the accuracy of conduction, and allows different strokes to correspond to different operation signals, thereby achieving fine classification and meeting the usage requirements of multi-level signal output. Furthermore, the structure of the balance frame makes the entire inductor shaft 2 thinner and lighter, meeting people's usage requirements for different keyboards. The inductor shaft 2 can also be configured in other ways, which can be adjusted and set according to the actual situation. Its operation mode and principle are all conventional technical means in the field, so they will not be described in detail in this embodiment.

[0037] It should be noted that the integrated inductive axis keyboard module disclosed in this utility model is an improvement on the specific structure, but the specific control method is not the innovation of this utility model. The coils, top cover, base, balance frame, reset elastic element, light guide plate, reflective paper, light-emitting circuit board, keycaps, decorative cover, and other components involved in this utility model can be general standard parts or components known to those skilled in the art. Their structure, principle, and control method are all known to those skilled in the art through technical manuals or through conventional experimental methods.

[0038] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, other structures obtained by using the same or similar technical features as the above embodiments of the present utility model are all within the protection scope of the present utility model.

Claims

1. An integrated inductive keypad module, characterized in that: The utility model relates to a kind of inductive shafts, including a positioning plate, a plurality of inductive shafts are installed on the positioning plate in sequence, a bus line plate is arranged between the inductive shaft and the positioning plate, a plurality of installation through slots are formed on the positioning plate and matched with the inductive shaft, the both sides of the installation through slot are formed with the positioning fixed plate that is bent to extend upwards and passes through bus line plate and is buckled with inductive shaft, at least one positioning fixed groove is formed on the positioning fixed plate, at least one positioning protruding block is formed on the both sides of the inductive shaft and extends to the positioning fixed groove.

2. The integrated inductive shaft keyboard module of claim 1, wherein: The uppermost end of the positioning fixed plate is formed with a guide mounting plate that extends obliquely upwards.

3. The integrated inductive shaft keyboard module of claim 1, wherein: It also includes a light guide assembly arranged on the positioning plate, the light guide assembly includes a light guide plate arranged below the positioning plate, a reflective paper arranged below the light guide plate, and a light-emitting circuit board connected with the light guide plate and the reflective paper.

4. The integrated inductive shaft keyboard module of claim 3, wherein: The bus line plate is provided with a first coil directly below the inductive shaft, the bus line plate is formed with a bus line accommodation slot for the positioning fixed plate to pass through, and the bus line plate is formed with a bus line light guide accommodation slot below the inductive shaft.

5. The integrated inductive shaft keyboard module of claim 3, wherein: It also includes a coil circuit board located between the inductive shaft and the positioning plate and electrically connected with the bus line plate, the coil circuit board is provided with a second coil directly below the inductive shaft, the coil circuit board is formed with a coil circuit accommodation slot for the positioning fixed plate to pass through, and the coil circuit board is formed with a coil circuit light guide accommodation slot below the inductive shaft.

6. The integrated inductive shaft keyboard module of claim 1, wherein: It also includes a decorative cover arranged on the positioning plate and allowing the inductive shaft to protrude out.

7. The integrated inductive shaft keyboard module of claim 1, wherein: A keycap is correspondingly mounted on the inductive shaft.

8. The integrated inductive shaft keyboard module of claim 7, wherein: The inductive shaft includes a base buckled on the positioning fixed plate, a gimbal assembly hinged on the base, a reset elastic member arranged between the gimbal assembly, a metal piece arranged on the gimbal assembly, and an upper cover arranged on the gimbal, the positioning protruding block is arranged on the both sides of the base, and the keycap is arranged on the upper cover.