Pluggable ultrathin mechanical keyboard switch

Through the designed ultra -thin mechanical keyboard switch, the combined structure of the base, the balance shelf component, the guide part and the driving rod is used to solve the problem that the existing mechanical keyboard switch is difficult to replace and custom. Replacement reduces maintenance costs and improves contact stability and balance.

WO2025020968A1PCT designated stage expired Publication Date: 2025-01-30DONGGUAN CITY KAIHUA ELECTRONICS

Patent Information

Application Number
PCT/CN2024/105614
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-07-24
Filing Date
2024-07-16
Publication Date
2025-01-30

AI Technical Summary

Technical Problem

The mechanical switches of existing mechanical keyboards are difficult to replace due to welding and fixation, and are costly to be repaired, and cannot meet the custom requirements of different keys. At the same time, their conduction structure is technically difficult, labor and material resources are consumed, and they are not suitable for the trend of thinning.

Method used

Design a ultra -thin mechanical keyboard switch that can be inserted, adopts a combination structure of base, balance shelf component, guide parts and driving rods. The design of the buckle block and the buckle can be quickly inserted and replaced. Concentrations of linked hooks and twist spring structures are simplified to install, reducing the overall height and improving balance.

Benefits of technology

The rapid installation and replacement of the mechanical keyboard switch is reduced, the maintenance costs are reduced, the stability and balance of contact with each other, the use of different people's use needs, and saving human and material resources.

✦ Generated by Eureka AI based on patent content.

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Abstract

A pluggable ultrathin mechanical keyboard switch, comprising a base, a balance frame assembly, a conduction member, and a driving rod, and further comprising a fixing plate arranged in parallel with a PCB, and snap-fit blocks respectively arranged on two sides of the base. Snap-fit fasteners corresponding to the snap-fit blocks and extending upwards are respectively provided on two sides of the fixing plate; the snap-fit blocks are snap-fitted to the snap-fit fasteners, so as to fix the base to the fixing plate; the driving rod is provided with a conduction hook; the conduction member is a conductive elastomer; a fixing part is provided in the middle of the metal elastomer; a first elastic arm and a second elastic arm extend from the fixing part to two sides, respectively; a conduction driving part is provided on an end portion of the first elastic arm; a conduction fixing part is provided on the second elastic arm; and the conduction driving part extends to a position above the conduction hook, so as to realize linkage with the driving rod. The present invention achieves good contact stability, convenient and rapid internal structure mounting, free plugging and removal, easy replacement, accurate conduction and disconnection actions, good elastic recovery, a low overall height, good balance, a light weight and a small thickness, thereby satisfying the use requirements of different people.
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Description

A pluggable ultra-thin mechanical keyboard switch Technical Field

[0001] The present invention relates to the technical field of key switches, and in particular to a pluggable ultra-thin mechanical keyboard switch. Background Art

[0002] A mechanical keyboard is a more complex keyboard than a membrane keyboard. Mechanical switches are used under the keycaps. Mechanical keyboards are more expensive than membrane keyboards and have the characteristics of better feel, crisp sound, and long mechanical life. However, mechanical switches have poor performance in terms of water and dust resistance, so failures are inevitable.

[0003] The mechanical switches of existing mechanical keyboards are directly soldered to the PCB board, which has obvious drawbacks: once the mechanical switch becomes defective or damaged, it is difficult and costly to replace. End users generally cannot replace it themselves. Even if they can replace it, it is time-consuming and there are soldering hazards. In addition, this existing technology also prevents end users from choosing different types of mechanical switches for different keys on the keyboard according to their own preferences.

[0004] In addition, the conduction structure of the existing mechanical switch needs to be fixed on a structure such as a housing or a conductor core. Its structure is relatively delicate and requires high precision for fixation. It is technically difficult and consumes a lot of manpower and material resources, making it unsuitable for current rapid production needs.

[0005] As electronic products tend to become thinner and thinner, existing pluggable and replaceable keyboard switches are increasingly unable to meet the trend of thinning.

[0006] Summary of the Invention

[0007] In response to the above-mentioned shortcomings, the purpose of the present invention is to provide a pluggable ultra-thin mechanical keyboard switch with good contact stability, convenient and quick internal structure installation, free pluggability, easy replacement, accurate conduction and disconnection actions, good elastic recovery force, and a low overall height, good balance, and lighter and thinner to meet the usage needs of different people.

[0008] The technical solution adopted by the present invention to achieve the above-mentioned purpose is:

[0009] A pluggable ultra-thin mechanical keyboard switch comprises a base, a balance frame assembly rotatably arranged on the base, a conductive member, and a driving rod driven by the balance frame assembly to trigger the conductive member to be turned on and off. The switch is characterized in that it also includes a fixing plate arranged parallel to the PCB board, and a snap block respectively arranged on both sides of the base, wherein the fixing plate is respectively provided with a clip corresponding to the snap block and extending upward, and the snap block and the clip are engaged with the clip to fix the base to the fixing plate; the driving rod is provided with a conductive hook; the conductive member is a conductive elastomer, and a fixing portion is provided in the middle of the metal elastomer; a first elastic arm and a second elastic arm extend to both sides respectively from the fixing portion, the end of the first elastic arm is provided with a conductive driving portion, and the second elastic arm is provided with a conductive fixing portion; the conductive driving portion extends above the conductive hook to achieve linkage with the driving rod.

[0010] As a further improvement of the present invention, the conducting hook is arranged at the lower end of the driving rod facing outward.

[0011] As a further improvement of the present invention, the PCB board is provided with an electrical connection static contact electrically connected to the conduction fixing part, and an electrical connection moving contact electrically connected to the conduction driving part.

[0012] As a further improvement of the present invention, the PCB board is provided with buckle clearance holes corresponding one-to-one to the buckles.

[0013] As a further improvement of the present invention, the outermost end of the snap-fit ​​block is provided with a guiding inclined surface to facilitate the snap-fitting of the snap-fit ​​block into the buckle.

[0014] As a further improvement of the present invention, the conductive hook is in a “∟” shape as a whole.

[0015] As a further improvement of the present invention, a lower pressing linkage block and an upper pressing linkage block are respectively provided at one end of the driving rod, and a pressing protrusion is protruded on the balancing frame assembly and extends between the lower pressing linkage block and the upper pressing linkage block. When the balancing frame assembly is pressed downward, the pressing protrusion acts on the lower pressing linkage block to drive the driving rod to move downward. When the balancing frame assembly is reset, the pressing protrusion acts on the upper pressing linkage block to drive the driving rod to move upward, thereby driving the conductive part to realize conduction and disconnection.

[0016] As a further improvement of the present invention, the metal elastic body is a torsion spring, which includes a fixing portion mounted on the fixing seat, a first elastic arm extending from the fixing portion toward one end of the conductive hook, a conductive driving portion integrally formed at the outermost end of the first elastic arm and bent 90 degrees to extend outward, a second elastic arm extending from the fixing portion toward one end away from the conductive hook, and a conductive fixing portion integrally formed at the outermost side of the second elastic arm and bent 90 degrees to extend inward; the conductive driving portion is hooked on the conductive hook, and the conductive fixing portion is pressed against the electrical connection static contact of the PCB board to achieve electrical connection.

[0017] As a further improvement of the present invention, a conductive contact portion bent downward is formed on the first elastic arm. When the balance frame assembly is pressed downward, the pressing protrusion acts on the driving rod, and the driving rod acts on the conductive driving portion of the torsion spring through the conductive hook, thereby driving the conductive contact portion until it contacts the electrical connection moving contact on the PCB board to achieve electrical connection, thereby completing a signal input.

[0018] As a further improvement of the present invention, the fixing seat is located at the lower end of the driving rod and is provided with a mounting portion for installing the conductive part. The mounting portion includes a first horizontal mounting groove for the conductive driving part and the conductive hook to be placed, a first longitudinal mounting groove connected to one side of the first horizontal mounting groove and for the first elastic arm to be placed in a movable manner, a fixing part mounting groove connected to the tail end of the first longitudinal mounting groove and for the fixing part to be placed in, a second longitudinal mounting groove connected to the other end of the fixing part mounting groove and for the second elastic arm to be placed in a movable manner, and a second horizontal mounting groove connected to the tail end of the second longitudinal mounting groove and for the conductive fixing part to be placed in.

[0019] As a further improvement of the present invention, the driving rod is provided with an embedding groove located directly above the mounting portion.

[0020] As a further improvement of the present invention, the driving rod 4 further includes a dust cover covering the embedding groove.

[0021] The beneficial effects of the present invention are:

[0022] By setting a base under the base and a fixing plate parallel to the PCB board, the snap-fit ​​blocks on the base are correspondingly snapped into the buckles on the fixing plate to complete the insertion and installation of the mechanical keyboard switch. When disassembling, the mechanical keyboard switch can be pulled out by simply stretching the buckles. The entire operation is convenient and fast, and easy to replace.

[0023] By using the balance frame assembly, the cooperation of the driving rod with the base and the fixed plate, the push-to-balance function and the push-to-conduction function are combined together by the linkage action of the driving rod, thereby reducing the overall height, improving the balance, and improving the contact stability, meeting the needs of different people.

[0024] The structure in which the torsion spring is hooked on the conduction hook makes the installation of the torsion spring easier. The mechanical key can be turned on and off by simply placing the torsion spring on the driving rod and the base. No welding or fixing is required. The installation technology requirements are low, the installation is convenient and quick, and manpower and material resources are saved. In addition, the conduction and disconnection actions are accurate, and the elastic recovery force is good, which improves the practicality of the mechanical keyboard switch.

[0025] The above is an overview of the technical solution of the invention. The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods.

[0026] BRIEF DESCRIPTION OF THE DRAWINGS

[0027] FIG1 is an overall schematic diagram of the present invention;

[0028] Figure 2 is a side view of the fixed plate;

[0029] FIG3 is an exploded view of the present invention;

[0030] Figure 4 is a schematic structural diagram of a driving rod;

[0031] Figure 5 is a schematic structural diagram of the base;

[0032] FIG6 is a cross-sectional view of the present invention without the base;

[0033] In the figure: 1. Fixing seat; 11. Mounting portion; 111. First transverse mounting slot; 112. First longitudinal mounting slot; 113. Fixing portion mounting slot; 114. Second longitudinal mounting slot; 115. Second transverse mounting slot; 2. Gimbal assembly; 21. Gimbal A; 22. Gimbal B; 221. Pressing bump; 23. Tension spring; 3. Conducting member; 31. Fixing portion; 32. First elastic arm; 33. Conducting drive Part; 34, second elastic arm; 35, conductive fixing part; 36, conductive contact part; 4, driving rod; 41, lower pressing linkage block; 42, conductive hook; 43, embedding groove; 44, upper pressing linkage block; 5, fixing plate; 51, buckle; 6, base; 61, snap-fit ​​block; 611, guide inclined surface; 7, dust cover; 8, PCB board; 81 electrically connected static contact; 82 electrically connected moving contact; 83, buckle clearance hole.

[0034] DETAILED DESCRIPTION

[0035] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings and preferred embodiments.

[0036] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 limiting the present invention.

[0037] 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 the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0038] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0039] 1 to 6 , an embodiment of the present invention provides a pluggable ultra-thin mechanical keyboard switch, comprising a base 6, a balance frame assembly 2 rotatably disposed on the base 6, a conducting member 3, and a driving rod 4 driven by the balance frame assembly 2 to trigger the conducting member 3 to be turned on and off. The switch is characterized in that it further comprises a fixing plate 5 arranged parallel to the PCB board 8, and a snap-fit ​​block 61 respectively arranged on both sides of the base 6. A clip 51 corresponding to the snap-fit ​​block 61 and extending upward is respectively provided on both sides of the fixing plate 5. The snap-fit ​​block 61 is engaged with the clip 51 to fix the base 6 on the fixing plate 5, thereby completing the insertion and installation of the mechanical keyboard switch. When disassembling, the mechanical keyboard switch can be pulled out by simply stretching the clip 51. The entire operation is convenient and quick, the switch can be freely plugged and unplugged, and is easy to replace, thereby meeting the different needs of different people for mechanical keyboard switches.

[0040] The drive rod 4 is provided with a conductive hook 42. The conductive member 3 is a conductive elastomer, with a fixing portion 31 disposed in the middle. A first elastic arm 32 and a second elastic arm 34 extend from the fixing portion 31 to either side. The first elastic arm 32 has a conductive drive portion 33 disposed at its end, and the second elastic arm 34 has a conductive fixing portion 35 disposed thereon. The conductive drive portion 33 extends above the conductive hook 42 to achieve linkage with the drive rod 4. By configuring the conductive member 3 as a conductive elastomer, its conductive fixing portion 35 maintains a stable electrical connection with the PCB 8. When a user presses the switch of this mechanical keyboard, the drive rod 4 moves downward. Under the action of its own elastic restoring force, the conductive drive portion 33 rotates downward about the fixing portion 31 to the middle of the first elastic arm 32, where it electrically connects to the PCB 8, completing a signal input. When the user releases the mechanical keyboard switch, the balance frame assembly 2 drives the drive rod 4 to move upward, and the drive rod 4 pulls up the conduction drive part 33, causing the conduction member 3 to undergo elastic deformation, and the first elastic arm 32 connected to the conduction drive part 33 is driven to separate from the PCB board 8, thereby disconnecting the electrical signal. It has good contact stability, convenient and quick installation of the internal structure, accurate conduction and disconnection actions, and good elastic recovery force, thereby improving the accuracy and installation efficiency of the mechanical keyboard switch.

[0041] The structure in which the conductive drive part 33 is hung on the conductive hook 42 makes the installation of the conductive part 3 easier. The conductive part 3 only needs to be placed on the drive rod 4 and the base 6 to realize the conduction and disconnection of the mechanical key. No welding fixation is required, etc. The installation technology requirements are low, the installation is convenient and quick, and manpower and material resources are saved. In addition, the conduction and disconnection actions are accurate, and the elastic recovery force is good, which improves the practicality of the mechanical keyboard switch.

[0042] By using the balance frame assembly 2, the driving rod 4, the base 6 and the fixed plate 5, the driving rod 4 is rotatably set on the base 1. The linkage action of the driving rod 4 combines the press-balance function with the press-conduction function, thereby reducing the overall height, improving the balance and ensuring the contact stability.

[0043] As for the formation position of the conductive hook, as shown in Figures 1, 3, 4 and 6, the conductive hook 42 is arranged at the lower end of the driving rod 4 facing the outer end, so that the driving rod 4 can act on the conductive member 3 through the conductive hook 42 when it is driven by the balance frame to move up and down.

[0044] As shown in FIG3 , the PCB 8 is provided with a static electrical contact 81 electrically connected to the conductive fixing portion 35 and a dynamic electrical contact 82 electrically connected to the conductive driving portion 33. The conductive fixing portion 35 is fixedly pressed against the static electrical contact 81, thereby achieving electrical connection at one end of the conductive member 3. When pressed by a user, the first elastic arm 32 moves downward due to its elastic restoring force, causing the first elastic arm 32 to contact the dynamic electrical contact 82, achieving electrical connection. With electrical connection between the two ends, a complete circuit is formed between the conductive member 3 and the PCB 8, completing a signal input.

[0045] Regarding the positioning of the fixing plate 5, the fixing plate 5 can be positioned below the PCB 8, with the base 6 and fixing plate 5 securing the PCB 8, thereby electrically connecting the conductive member 3 to the PCB 8. Alternatively, the fixing plate 5 can be positioned above the PCB 8, with the fixing plate 5 secured to the PCB 8 and the base 6 inserted into the fixing plate 5, thereby electrically connecting the conductive member 3 on the base 6 to the PCB 8. Both approaches can be selected and adjusted based on actual circumstances and are not specifically limited in this embodiment.

[0046] As for the buckling method between the fixing plate 5 and the base 6 when the fixing plate 5 is arranged below the PCB board 8, as shown in Figures 3 and 6, the PCB board 8 is provided with buckle clearance holes 83 corresponding to the buckles 51. When the base 6 needs to be installed on the fixing plate 5, it is only necessary to pass the buckle 51 through the buckle clearance hole 83, and then the buckling block 61 on the base 6 is buckled into the buckle 51 to complete the installation of the base 6. The whole process is simple and convenient, easy to replace, effectively improving the user experience, and meeting the usage needs of different people.

[0047] In order to facilitate the buckling of the snapping block 61 into the buckle 51, as shown in Figure 3, a guiding inclined surface 611 is provided at the outermost end of the snapping block 61. The guiding inclined surface 611 is a guiding inclined surface 611 that is inclined from the outside to the inside and downward. When the user or manufacturer needs to install the fixing plate 5 on the base 6, the guiding inclined surface 611 first contacts the buckle 51. Under the guiding action of the guiding inclined surface 611, the snapping block 61 moves toward the inner side of the buckle 51, making it easier to enter the buckle 51 from the inner side of the buckle 51, completing the installation of the mechanical keyboard switch, facilitating the coordination between the various components, improving the speed and accuracy of the installation of the base 6 on the fixing plate 5, and further improving the efficiency of the installation.

[0048] As for the specific structural setting of the conductive hook 42, as shown in Figures 3 and 4, the conductive drive part 33 is hung on the conductive hook 42. The "∟"-shaped structural setting makes the conductive part 3 more stable when hooked, and is convenient for the manufacturer to install the conductive part 3 on the conductive hook 42 from the side, reducing technical difficulty, facilitating and quickly installing, saving manpower and material resources, and ensuring accurate conduction and disconnection actions, thereby improving the accuracy and installation efficiency of the mechanical keyboard switch.

[0049] Regarding the specific structural arrangement of the drive rod 4, as shown in Figures 3 and 4, one end of the drive rod 4 is provided with a lower pressing linkage block 41 and an upper pressing linkage block 44, respectively. A pressing protrusion 221 is provided on the balance frame assembly 2, extending between the lower pressing linkage block 41 and the upper pressing linkage block 41. When the balance frame assembly 2 is pressed downward, the pressing protrusion 221 acts on the lower pressing linkage block 41 to drive the drive rod 4 downward. When the balance frame assembly 2 is reset, the pressing protrusion 221 acts on the upper pressing linkage block 44 to drive the drive rod 4 upward, thereby driving the conductive member 3 to achieve conduction and disconnection. This structure is tightly coordinated, facilitating the coordination between the various components, thereby achieving the purpose of accurate conduction and disconnection, improving the accuracy and installation efficiency of the mechanical keyboard switch.

[0050] As shown in Figures 3 and 6 , the conductive elastic body is a torsion spring. The torsion spring comprises a fixing portion 31 mounted on the fixing base 1, a first elastic arm 32 extending from the fixing portion 31 toward one end of the conductive hook 42, a conductive driving portion 33 integrally formed at the outermost end of the first elastic arm 32 and extending outwardly by a 90-degree bend, a second elastic arm 34 extending from the fixing portion 31 toward an end away from the conductive hook 42, and a conductive fixing portion 35 integrally formed at the outermost end of the second elastic arm 34 and extending inwardly by a 90-degree bend. The conductive driving portion 33 is hooked onto the conductive hook 42, and the conductive fixing portion 35 presses against the electrical connection static contact 81 of the PCB board 8 to achieve electrical connection. By configuring the conductive member 3 as a torsion spring and integrally forming the structure, the conductive member 3 is less susceptible to breakage, thereby increasing its service life. Furthermore, the conductive member 3 does not require a separate mold, saving costs and further enhancing its practicality. By providing a conductive drive portion 33 extending outward at a 90-degree bend at the outermost end of the first elastic arm 32, the gimbal assembly 2 can better pull up the conductive drive portion 33. By providing a conductive fixing portion 35 extending inward at a 90-degree bend at the outermost end of the second elastic arm 34, the contact surface is large, thereby better securing the conductive member 3 to the PCB 8 for electrical connection.

[0051] As for the specific structural setting of the electrical connection between the first elastic arm 32 and the PCB board 8, as shown in Figures 3 and 6, a downward-bending conductive contact portion 36 is formed on the first elastic arm 32. When the balance frame assembly 2 is forced to move downward, the conductive member 3 rotates downward with the fixed portion 31 as the center, so that the conductive contact portion 36 on the first elastic arm 32 is electrically connected and conductive with the electrical connection moving contact 82 in the PCB board 8, completing a signal input, and the conductive and disconnecting actions are accurate, thereby improving the accuracy and installation efficiency of the keyboard switch.

[0052] As shown in FIG5 , the fixing base 1 includes a mounting portion 11 protruding from the fixing base 1 for mounting the conductive member 3. The mounting portion 11 includes a first transverse mounting groove 111 for the conductive drive portion 33, a first longitudinal mounting groove 112 connected to one side of the first transverse mounting groove 111 and into which the first elastic arm 32 is inserted, a fixing portion mounting groove 113 connected to the rear end of the first longitudinal mounting groove 112 and into which the fixing portion 31 is inserted, a second longitudinal mounting groove 114 connected to the other end of the fixing portion mounting groove 113 and into which the second elastic arm 34 is inserted, and a second transverse mounting groove 115 connected to the rear end of the second longitudinal mounting groove 114 and into which the conductive fixing portion 35 is inserted. The conductive fixing portion 35 is pressed against the PCB board 8 via the lower end of the second transverse mounting groove 115. The conductive member 3 is stably mounted on the fixing seat 1 through the one-to-one corresponding mounting groove arrangement, and has sufficient space for moving up and down to realize different operations of conduction and disconnection, and accurately limits the moving stroke of each part of the conductive member 3, effectively preventing the conductive member 3 from shifting during the activity and causing the problem of malfunction. The conduction and disconnection actions are accurate, thereby improving the input efficiency of the keyboard switch.

[0053] As for the specific relationship between the driving rod 4 and the fixing base 1 when the driving rod 4 is active, as shown in Figures 1, 3 and 4, the driving rod 4 is provided with an embedding groove 43 located just above the mounting portion 11. When the driving rod 4 moves downward, the mounting portion 11 is embedded in the embedding groove 43, thereby facilitating the movement of the driving rod 4 on the fixing base 1, realizing the elastic reset of the conductive driving portion 33 and the conductive hook 42, so that the switch of the mechanical keyboard is conductive. When the driving rod 4 moves upward, the mounting portion 11 leaves the embedding groove 43, and the conductive hook 42 of the driving rod 4 pulls up the conductive driving portion 33 and the first torsion arm 32, thereby realizing the disconnection of the switch of the mechanical keyboard. The entire operation is smooth, and the structure of the mounting portion 11 corresponding to the movement on the embedding groove 43 limits the active stroke of the embedding groove 43, thereby improving the activity accuracy of the driving rod 4 and improving the input efficiency of the mechanical keyboard switch.

[0054] In order to prevent the conductive member 3 from detaching from the top of the fixing base 1 during the pulling process, as shown in Figures 1 and 3, the mechanical keyboard switch further includes a dust cover 7 covering the embedding groove 43. The top of the conductive member 3 is blocked by the dust cover 7, so that the conductive member 3 is better restricted by the mounting portion 11, thereby improving the accuracy of the movement and effectively preventing the conductive member 3 from detaching from the top of the base 1 when being pulled.

[0055] In this embodiment, as shown in Figures 1 and 3, the balance frame assembly 2 includes a balance frame A21 rotatably connected to the base 1, a balance frame B22 rotatably connected to the base 1 and the balance frame A21, and a tension spring 23 connected between the balance frames A21 and B22. The pressing protrusion 221 is provided on the balance frame B. The balance frame assembly 2 provides balance and stability for the pressing of the mechanical keyboard switch, while the tension spring 23 provides elastic restoring force for the pressing reset. During specific use, a keycap is installed on the balance frame A21 and the balance frame B22. The specific structure of the balance frame A21 and the balance frame B22, as well as the installation method of the keycap, are not the innovative points of this invention. Regarding the specific structure, the patent number is 202121092814.4, and the patent name is "A photoelectric key switch with increased pressing feel", which will not be repeated here.

[0056] The driving rod 4 pressing down to make the conductive contact portion 36 just conduct the PCB board 8, or the driving rod 4 applying force to further press the conductive driving portion 33 downward to conduct the PCB board 8, all fall within the protection scope of the present invention.

[0057] It should be noted that the pluggable, ultra-thin mechanical keyboard switch disclosed in this invention is an improvement to its specific structure, and the specific control method is not the innovation of this invention. The keycaps, PCB board, and other components involved in this invention can be commonly used standard parts or components known to those skilled in the art. Their structure, principles, and control methods are all known to those skilled in the art through technical manuals or routine experimental methods.

[0058] The above description is merely a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, other structures obtained by adopting the same or similar technical features as the above-mentioned embodiments of the present invention are within the scope of protection of the present invention.

Claims

1. A pluggable ultra-thin mechanical keyboard switch, comprising a base, a balance frame assembly rotatably disposed on the base, a conducting member, and a driving rod driven by the balance frame assembly and triggering the conducting member to be turned on and off, characterized in that: It also includes a fixing plate arranged parallel to the PCB board, and a buckle block respectively arranged on both sides of the base, and a buckle corresponding to the buckle block and extending upward is respectively arranged on both sides of the fixing plate, and the buckle block is engaged with the buckle to fix the base on the fixing plate; the driving rod is provided with a conducting hook; the conducting member is a conductive elastomer, and a fixing part is arranged in the middle of the conductive elastomer; a first elastic arm and a second elastic arm are respectively extended to both sides from the fixing part, a conducting driving part is arranged at the end of the first elastic arm, and a conducting fixing part is arranged at the second elastic arm; the conducting driving part extends into the top of the conducting hook to realize linkage with the driving rod.

2. The pluggable ultra-thin mechanical keyboard switch according to claim 1, characterized in that: The conducting hook is arranged at the lower end of the driving rod facing the outer end.

3. The pluggable ultra-thin mechanical keyboard switch according to claim 1, characterized in that: The PCB board is provided with an electrical connection static contact electrically connected to the conduction fixing part, and an electrical connection moving contact electrically connected to the conduction driving part.

4. The pluggable ultra-thin mechanical keyboard switch according to claim 1, characterized in that: The PCB board is provided with buckle-making holes corresponding to the buckles one by one.

5. The pluggable ultra-thin mechanical keyboard switch according to claim 1, characterized in that: The outermost end of the buckle block is provided with a guiding inclined surface to facilitate the buckle block to buckle into the buckle.

6. The pluggable ultra-thin mechanical keyboard switch according to claim 1, characterized in that: The conductive hook is in a "∟" shape as a whole.

7. The pluggable ultra-thin mechanical keyboard switch according to claim 1, characterized in that: A lower pressing linkage block and an upper pressing linkage block are respectively provided at one end of the driving rod, and a pressing protrusion extending between the lower pressing linkage block and the upper pressing linkage block is convexly provided on the balancing frame assembly. When the balancing frame assembly is pressed downward, the pressing protrusion acts on the lower pressing linkage block to drive the driving rod to move downward. When the balancing frame assembly is reset, the pressing protrusion acts on the upper pressing linkage block to drive the driving rod to move upward, thereby driving the conductive part to realize conduction and disconnection.

8. The pluggable ultra-thin mechanical keyboard switch according to claim 1, characterized in that: The conductive elastic body is a torsion spring, which includes a fixing portion mounted on the fixing seat, a first elastic arm extending from the fixing portion toward one end of the conductive hook, a conductive driving portion integrally formed at the outermost end of the first elastic arm and bent 90 degrees to extend outward, a second elastic arm extending from the fixing portion toward one end away from the conductive hook, and a conductive fixing portion integrally formed at the outermost end of the second elastic arm and bent 90 degrees to extend inward; the conductive driving portion is hooked on the conductive hook, and the conductive fixing portion is pressed against the electrical connection static contact of the PCB board to achieve electrical connection.

9. The pluggable ultra-thin mechanical keyboard switch according to claim 8, characterized in that: A conductive contact portion bent downward is formed on the first elastic arm. When the balance frame assembly is pressed downward, the pressing protrusion acts on the driving rod, and the driving rod acts on the conductive driving portion of the torsion spring through the conductive hook, thereby driving the conductive contact portion until it contacts the electrical connection moving contact on the PCB board to achieve electrical connection, thereby completing a signal input.

10. The pluggable ultra-thin mechanical keyboard switch according to claim 9, characterized in that: The fixing seat is located at the lower end of the driving rod and is provided with a mounting portion for mounting the conductive part. The mounting portion includes a first transverse mounting groove for inserting the conductive driving part and the conductive hook, a first longitudinal mounting groove connected to one side of the first transverse mounting groove and for inserting the first elastic arm, a fixing part mounting groove connected to the tail end of the first longitudinal mounting groove and for inserting the fixing part, a second longitudinal mounting groove connected to the other end of the fixing part mounting groove and for inserting the second elastic arm, and a second transverse mounting groove connected to the tail end of the second longitudinal mounting groove and for inserting the conductive fixing part.

11. The pluggable ultra-thin mechanical keyboard switch according to claim 10, characterized in that: The driving rod is provided with an embedding groove located just above the mounting portion.

12. The pluggable ultra-thin mechanical keyboard switch according to claim 11, characterized in that: The driving rod 4 further includes a dust cover covering the embedding groove.

Citation Information

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