Keyboard device

Abstract

A keyboard device includes a base plate and a composite key structure. The base plate has an assembly area with a first assembly member and a second assembly member. The composite key structure is disposed on the assembly area and includes a key cap, a first linkage member and a second linkage member integrally combined with each other. The key cap includes a first side and a second side. The first linkage member includes a first connecting side and a first assembly side. The first connecting side is integrally connected with the first side through a first flexible portion. The first assembly side is movably connected with the first assembly member. The second linkage member includes a second connecting side and a second assembly side. The second connecting side is integrally connected with the second side through a second flexible portion. The second assembly side is movably connected with the second assembly member of the base plate.

Description

Technical Field

[0001] This invention relates to an input device, and more particularly to a keyboard device. Background Technology

[0002] Keyboards are one of the most common input devices in electronic devices today. They are used for operation or text input in computer products that we often encounter in daily life (such as laptops, desktop computers or tablets) or large control or processing equipment in industry.

[0003] Generally, a keyboard's key structure mainly consists of individual keycaps, linkage components (such as scissor-switch connectors), and a base plate. The linkage components are assembled between the keycaps and the base plate to support and guide the keycaps' movement. However, each component of this key structure (keycap, linkage component, and base plate) requires its own mold for production, resulting in high manufacturing costs. Furthermore, the assembly process requires manpower to first assemble the linkage components and then connect them to the keycaps and base plate, leading to high labor costs. Summary of the Invention

[0004] In view of the above, in one embodiment, a keyboard device is provided, including a substrate and a composite key structure. The substrate includes a top surface, and the top surface has an assembly area, on which a first assembly and a second assembly are disposed. The composite key structure is disposed on the assembly area, and the composite key structure includes a keycap, a first linkage, and a second linkage integrally connected to each other. The keycap includes a first side and a second side opposite to each other. The first linkage includes a first connecting side and a first assembly side opposite to each other. A first flexible portion is integrally connected between the first connecting side and the first side of the keycap, allowing the first linkage to rotate relative to the keycap. The first assembly side is movably connected to the first assembly on the substrate, and a first pivot is provided between the first connecting side and the first assembly side. The second linkage includes a second connecting side and a second assembly side opposite to each other. A second flexible portion is integrally connected between the second connecting side and the second side of the keycap, allowing the second linkage to rotate relative to the keycap. The second assembly side is movably connected to the second assembly on the substrate, and a second pivot is provided between the second connecting side and the second assembly side. The second pivot is pivotally disposed on the first pivot of the first linkage.

[0005] In summary, the keyboard device according to embodiments of the present invention integrates the keycaps, first linkage, and second linkage of the composite key structure, allowing the entire composite key structure to be manufactured using the same set of molds. Furthermore, during assembly, after the first linkage and second linkage are combined, they only need to be mounted onto the substrate to complete the assembly process, thus reducing manufacturing and labor costs. Attached Figure Description

[0006] Figure 1 This is a perspective view of an embodiment of the keyboard device of the present invention;

[0007] Figure 2 This is a partially exploded perspective view of an embodiment of the keyboard device of the present invention;

[0008] Figure 3 This is a partial cross-sectional view of an embodiment of the keyboard device of the present invention;

[0009] Figure 4 This is an animation diagram of an embodiment of the keyboard device of the present invention;

[0010] Figure 5 This is a perspective view of the first embodiment of the composite button structure of the present invention;

[0011] Figure 6 This is a cross-sectional view of the first embodiment of the composite button structure of the present invention;

[0012] Figure 7 This is an assembly diagram of the first embodiment of the composite button structure of the present invention;

[0013] Figure 8 This is a plan view of the second embodiment of the composite button structure of the present invention;

[0014] Figure 9 This is a plan view of the third embodiment of the composite button structure of the present invention;

[0015] Figure 10 This is a cross-sectional view of the fourth embodiment of the composite button structure of the present invention;

[0016] Figure 11 This is a cross-sectional view of the fifth embodiment of the composite button structure of the present invention;

[0017] Figure 12 This is a cross-sectional view of the sixth embodiment of the composite button structure of the present invention;

[0018] Figure 13 This is a cross-sectional view of the seventh embodiment of the composite button structure of the present invention;

[0019] Figure 14 This is a cross-sectional view of the eighth embodiment of the composite button structure of the present invention;

[0020] Figure 15 This is a cross-sectional view of the ninth embodiment of the composite button structure of the present invention.

[0021] [Symbol Explanation]

[0022] 1: Keyboard device

[0023] 10:Substrate

[0024] 11: Top surface

[0025] 12: Assembly Area

[0026] 121: First assembly component

[0027] 122: Second assembly component

[0028] 20: Composite button structure

[0029] 21: Keycaps

[0030] 211: First side

[0031] 212: Second side

[0032] 213: Cover plate

[0033] 214: Hat brim

[0034] 215a~251e: Socket

[0035] 2151: Opening

[0036] 2152: Bottom of the tank

[0037] 216, 216': First slot

[0038] 217, 217': Second slot

[0039] 23: First Linkage Component

[0040] 231: First connecting side

[0041] 232: First assembly side

[0042] 2321: First shaft

[0043] 233: First pivot component

[0044] 234: Long slot

[0045] 2341: Curved surface

[0046] 235: Assembly port

[0047] 236: Guide ramp

[0048] 24,24',24a~24e: First flexible part

[0049] 241: First hollow section

[0050] 242a~242e: First mating part

[0051] 25: Second linkage

[0052] 251: Second connecting side

[0053] 252: Second assembly side

[0054] 2521: Second shaft

[0055] 253: Second pivot component

[0056] 26: Second flexible part

[0057] 261: Second hollow section Detailed Implementation

[0058] It should be noted that in the descriptions of the various embodiments, the terms "first" and "second" are used to describe different elements, and these elements are not limited by such predicates. Furthermore, for ease of explanation and clarity, the thickness or dimensions of the elements in the drawings are exaggerated, omitted, or approximated for the understanding and reading of those skilled in the art. The dimensions of each element are not exactly their actual dimensions and are not intended to limit the implementation conditions of the invention; therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effects and objectives achieved by the invention, should still fall within the scope of the technical content disclosed in this invention. The same reference numerals will be used to denote the same or similar elements in all the drawings.

[0059] Figure 1 This is a perspective view of an embodiment of the keyboard device of the present invention. Figure 2 This is a partially exploded perspective view of an embodiment of the keyboard device of the present invention. Figure 1 and Figure 2 As shown, the keyboard device 1 of this embodiment includes a substrate 10 and a plurality of composite key structures 20. The keyboard device 1 can be applied to various electronic products (such as input devices for desktop computers, notebook computers or other electronic devices) so that users can press to generate corresponding signals.

[0060] like Figure 1 and Figure 2 As shown, the substrate 10 can be a rigid plate made of metal (e.g., iron, aluminum, or alloy) or plastic. The substrate 10 includes a top surface 11, which has multiple assembly areas 12. Each assembly area 12 is a region on the substrate 10 for corresponding assembly of each composite button structure 20 (e.g., ...). Figure 2 (The square area shown). Taking one assembly area 12 as an example, the assembly area 12 may be provided with at least one first assembly 121 and at least one second assembly 122. In this embodiment, there are two first assembly 121s, which are spaced apart from each other and adjacent to one side of the assembly area 12. There are also two second assembly 122s, which are spaced apart from each other and adjacent to the other side of the assembly area 12.

[0061] like Figure 2 As shown, in this embodiment, each first assembly 121 and each second assembly 122 is a hook extending upward integrally from the substrate 10 (here it is an L-shaped hook, but it can also be a hook of other shapes such as U-shaped or T-shaped). However, this is not a limitation. Each first assembly 121 and each second assembly 122 can also be an independent component and assembled on the assembly area 12 of the substrate 10.

[0062] Figure 3 This is a partial cross-sectional view of an embodiment of the keyboard device of the present invention. Figure 4 This is an animation diagram illustrating an embodiment of the keyboard device of the present invention. Figures 2 to 4 As shown, taking one of the composite key structures 20 as an example, the composite key structure 20 is disposed above the assembly area 12 and includes a keycap 21, a first linkage 23 and a second linkage 25 that are integrally connected to each other. For example, the keycap 21, the first linkage 23 and the second linkage 25 can be integrally manufactured by means of casting or injection molding rather than being separate components.

[0063] like Figures 2 to 4 As shown, the keycap 21 has a first side 211 and a second side 212, wherein the first side 211 and the second side 212 are opposite sides of the keycap 21. In addition, in this embodiment, the keycap 21 includes a cover plate 213 and a brim 214. The cover plate 213 covers the first assembly 121 and the second assembly 122 on the assembly area 12. The brim 214 is integrally connected to the periphery of the cover plate 213 and protrudes toward the substrate 10.

[0064] like Figures 2 to 4 As shown, the first linkage 23 includes a first connecting side 231 and a first assembly side 232 that are opposite to each other, and a first flexible portion 24 is integrally connected between the first connecting side 231 and the first side 211 of the keycap 21, so that the first linkage 23 can swing relative to the keycap 21 based on the flexible characteristics of the first flexible portion 24. The thickness of the first flexible portion 24 can be less than the thickness of the first linkage 23 and the keycap 21. For example, the thickness of the first flexible portion 24 can be less than half the thickness of the first linkage 23, so that the first flexible portion 24 has better flexibility.

[0065] like Figures 2 to 4 As shown, the first assembly side 232 of the first linkage 23 is movably connected to the first assembly 121 of the substrate 10. Here, the first assembly side 232 of the first linkage 23 has two first shafts 2321, which are respectively engaged with the two first assemblies 121, so that the first assembly side 232 can rotate and / or slide relative to the two first assemblies 121.

[0066] like Figures 2 to 4As shown, the second linkage 25 includes a second connecting side 251 and a second assembly side 252 that are opposite to each other. The second connecting side 251 is integrally connected to the second side 212 of the keycap 21 with a second flexible portion 26, so that the second linkage 25 can swing relative to the keycap 21 based on the flexible characteristics of the second flexible portion 26. The thickness of the second flexible portion 26 can be less than the thickness of the second linkage 25 and the keycap 21. For example, the thickness of the second flexible portion 26 can be less than half the thickness of the second linkage 25, so that the second flexible portion 26 can have better flexibility.

[0067] like Figures 2 to 4 As shown, the second assembly side 252 of the second linkage 25 is movably connected to the second assembly 122 of the substrate 10. Here, the second assembly side 252 of the second linkage 25 has two second shafts 2521, which are respectively engaged with the second assembly 122, so that the second assembly side 252 can rotate and / or slide relative to the two second assemblies 122.

[0068] like Figures 2 to 4 As shown, at least one first pivot member 233 is provided between the first connecting side 231 and the first assembly side 232 of the first linkage member 23, and a second pivot member 253 is provided between the second connecting side 251 and the second assembly side 252 of the second linkage member 25. The second pivot member 253 of the second linkage member 25 is pivotally mounted on the first pivot member 233 of the first linkage member 23, so that the first linkage member 23 and the second linkage member 25 can rotate relative to each other to expand or retract about the first pivot member 233 and the second pivot member 253 as the axis.

[0069] Figure 5 This is a perspective view of the first embodiment of the composite button structure of the present invention. Figure 6 This is a cross-sectional view of the first embodiment of the composite button structure of the present invention. Figure 3 , Figure 5 and Figure 6 As shown, the first linkage 23 and the second linkage 25 can be scissor linkages. In this embodiment, the first linkage 23 is an outer frame (here, a rectangular frame), and the second linkage 25 is an inner frame (here, a rectangular frame). The size of the first linkage 23 is larger than the size of the second linkage 25, so that the first linkage 23 can be fitted onto the outside of the second linkage 25. Here, the first linkage 23 is provided with two first pivot members 233, which are respectively located on opposite sides of the first linkage 23. Each first pivot member 233 includes an elongated groove 234. The second linkage 25 is provided with two second pivot members 253, which are respectively located on opposite sides of the second linkage 25. Each second pivot member 253 is pivotally mounted within the elongated groove 234, so that each second pivot member 253 can slide and rotate relative to the elongated groove 234.

[0070] In this way, such as Figure 3 As shown, when the keycap 21 is not pressed, it can be elastically supported at a height position by an elastic body (not shown) to maintain a distance from the substrate 10. At this time, the first linkage 23 and the second linkage 25 are in an intersecting unfolded state. Please refer to the diagram. Figure 3 and Figure 4 As shown, when the keycap 21 is pressed and moves toward the substrate 10, the first flexible portion 24 and the second flexible portion 26 can be bent under force, causing the first linkage 23 and the second linkage 25 to swing relative to the keycap 21, thereby driving the first assembly side 232 of the first linkage 23 to rotate and / or slide relative to the first assembly 121, and driving the second assembly side 252 of the second linkage 25 to rotate and / or slide relative to the second assembly 122. Furthermore, the size of the elongated groove 234 of the first pivot 233 is slightly larger than that of the second pivot 253, so that the second pivot 253 can move with a horizontal component within the elongated groove 234 of the first pivot 233. Therefore, during the swinging process of the first linkage 23 and the second linkage 25, the second pivot 253 can slide and rotate relative to the elongated groove 234 of the first pivot 233. Please refer to... Figure 3 and Figure 4 As shown, when the keycap 21 is not pressed, the second pivot 253 is located on the right side of the elongated slot 234. When the keycap 21 is pressed, the second pivot 253 slides to the left side of the elongated slot 234, allowing the first linkage 23 and the second linkage 25 to rotate and retract relative to each other (as shown). Figure 4 As shown), this allows the keycap 21 to descend smoothly and approach the substrate 10.

[0071] In summary, the keyboard device 1 according to the embodiments of the present invention, through the integral molding structure of the keycap 21, the first linkage 23, and the second linkage 25 of the composite key structure 20, allows the keycap 21, the first linkage 23, and the second linkage 25 to be produced using the same set of molds, achieving the advantage of significantly reducing manufacturing costs. Furthermore, during the assembly process, after the first linkage 23 and the second linkage 25 are combined, they only need to be installed onto the substrate 10 to complete the assembly operation, achieving the effect of reducing labor costs. This is further explained in detail below with reference to the accompanying drawings.

[0072] Figure 7 This is an assembly diagram of the first embodiment of the composite button structure of the present invention. Figure 5 and Figure 6 As shown, after the keycap 21, the first linkage 23, and the second linkage 25 of the composite key structure 20 are integrally manufactured, the three can be arranged side by side on the same plane, but this is not a limitation. Figures 5 to 7As shown, during assembly, simply folding the first linkage 23 and the second linkage 25 towards the bottom of the keycap 21 brings them close together and pivots them together with the first pivot 233 and the second pivot 253, achieving the advantages of quick and convenient assembly. Next, the first assembly side 232 of the first linkage 23 is assembled onto the first assembly 121 on the substrate 10, and the second assembly side 252 of the second linkage 25 is assembled onto the second assembly 122 on the substrate 10 to complete the assembly operation. Therefore, after the first linkage 23 and the second linkage 25 are combined, no further manual assembly to the keycap 21 is required, reducing assembly steps and labor costs. Furthermore, the keycap 21 does not need to have components for mounting the first linkage 23 and the second linkage 25, further reducing material costs.

[0073] like Figure 7 As shown, in this embodiment, the first pivot member 233 of the first linkage 23 further includes an assembly opening 235, which communicates with the elongated slot 234. The width of the assembly opening 235 is smaller than the width of the second pivot member 253. For example, the width of the assembly opening 235 can be 1 / 2 to 4 / 5 of the width of the second pivot member 253. Therefore, during the assembly process of the first linkage 23 and the second linkage 25, the assembler can apply force to pass the second pivot member 253 through the assembly opening 235 to engage it within the elongated slot 234 of the first pivot member 233, preventing the second pivot member 253 from disengaging from the elongated slot 234 during operation.

[0074] For example Figure 7 As shown, in this embodiment, the first linkage 23 is further provided with at least one guide slope 236, which is connected to the edge of the assembly opening 235. Therefore, during the assembly process of the first linkage 23 and the second linkage 25, the second pivot 253 can be smoothly moved towards the assembly opening 235 and pass through the assembly opening 235 to engage within the elongated groove 234, guided by the guide slope 236, thus reducing interference between the first linkage 23 and the second linkage 25 during assembly. Furthermore, in this embodiment, the elongated groove 234 also has an arc-shaped surface 2341. Additionally, as... Figure 3 and Figure 4 As shown, during the process of the first linkage 23 and the second linkage 25 swinging and unfolding and retracting, the second pivot 253 slides along the arc surface 2341 relative to the long groove 234. In other words, the arc surface 2341 can better match the movement path of the pivot 253, making the pivot 253 more stable during the sliding process and reducing the interference with the long groove 234.

[0075] like Figure 3 , Figure 4 and Figure 6As shown, in this embodiment, the first flexible portion 24 and the second flexible portion 26 are integrally connected to the bottom of the cap 214 near the substrate 10. This reduces the bending amplitude of the first flexible portion 24 and the second flexible portion 26 during the assembly and operation of the composite key structure 20, thereby reducing the stress and making the first linkage 23 and the second linkage 25 easier to assemble and extending their service life. However, the above embodiment is merely an example; the first flexible portion 24 and the second flexible portion 26 can also be integrally connected to different positions on the keycap 21 (e.g., the edge of the cover plate 213), and this is not a limitation.

[0076] Figure 8 This is a plan view of the second embodiment of the composite button structure of the present invention. Figure 9 This is a plan view of the third embodiment of the composite button structure of the present invention. Figure 8 As shown, in this embodiment, the first flexible portion 24 may be provided with at least one first hollow portion 241 (here, the first hollow portion 241 is a hollow hole), and the second flexible portion 26 may be provided with at least one second hollow portion 261 (here, the second hollow portion 261 is a hollow hole). Therefore, when the keycap 21 is pressed and causes the first flexible portion 24 and the second flexible portion 26 to bend, the first hollow portion 241 and the second hollow portion 261 can reduce the stress on the first flexible portion 24 and the second flexible portion 26, thereby increasing the service life of the first flexible portion 24 and the second flexible portion 26.

[0077] Or, such as Figure 9 As shown, in this embodiment, the number of first hollow portions 241 of the first flexible portion 24 can also be multiple, and the multiple first hollow portions 241 are spaced apart from each other. Similarly, the number of second hollow portions 261 of the second flexible portion 26 can also be multiple, and the multiple second hollow portions 261 are spaced apart from each other. Therefore, compared to the above... Figure 8 In this embodiment, the hollow area of ​​the first flexible part 24 and the second flexible part 26 can be reduced. Therefore, when the keycap 21 is pressed and causes the first flexible part 24 and the second flexible part 26 to bend, in addition to reducing the stress on the first flexible part 24 and the second flexible part 26, a certain connection strength can still be maintained between the first flexible part 24, the second flexible part 26 and the keycap 21.

[0078] In some embodiments, the keycap 21, the first linkage 23, the first flexible portion 24, the second linkage 25, and the second flexible portion 26 may be made of the same resin material, such as polycarbonate (PC), polypropylene (PP), acrylonitrile butadiene styrene copolymer (ABS), polymethyl methacrylate (PMMA), or a synthetic resin material made of at least two of the above materials.

[0079] In some embodiments, the keycap 21, the first linkage 23, the first flexible portion 24, the second linkage 25, and the second flexible portion 26 can also be manufactured using a two-material injection molding process and can be made of different materials (such as...). Figures 10 to 15 (As shown). For example Figure 10 As shown, in this embodiment, the first linkage 23 and the first flexible part 24' are made of the same material, while the keycap 21 is made of a different material from the first flexible part 24'.

[0080] Alternatively, in some embodiments, the first linkage 23 and the keycap 21 may be made of the same material, while the first flexible portion 24 may be made of a different material. For example Figure 11 As shown, in this embodiment, the keycap 21 has a groove 215a, which is an elongated groove disposed on the first side 211 of the keycap 21. The first flexible portion 24a and the keycap 21 are made of different materials, and the first flexible portion 24a has a first fitting portion 242a. After the two-material injection molding process, the first fitting portion 242a of the first flexible portion 24a can be integrally fitted into the groove 215a to increase the bonding area between the first flexible portion 24a and the keycap 21, thereby improving the connection strength between the first flexible portion 24a and the keycap 21 and further increasing the service life.

[0081] like Figure 12 As shown, in this embodiment, the keycap 21 has a groove 215b, which is a triangular groove disposed on the first side 211 of the keycap 21. The first flexible portion 24b and the keycap 21 are made of different materials, and the first flexible portion 24b has a first fitting portion 242b. After the two-material injection molding process, the first fitting portion 242b of the first flexible portion 24b can be integrally fitted into the groove 215b to increase the bonding area between the first flexible portion 24b and the keycap 21. In addition, the triangular shape of the groove 215b further enhances the pull-out resistance of the first flexible portion 24b, thereby increasing the connection strength between the first flexible portion 24b and the keycap 21 and further increasing the service life.

[0082] like Figure 13As shown, in this embodiment, the keycap 21 has a groove 215c. The groove 215c has an opening 2151 and a bottom 2152 in its cross-section. The width of the opening 2151 is smaller than the width of the bottom 2152, resulting in a groove 215c that is narrower on the outside and wider on the inside. The first flexible portion 24c and the keycap 21 are made of different materials, and the first flexible portion 24c has a first fitting portion 242c. After the two-material injection molding process, the first fitting portion 242c of the first flexible portion 24c can be integrally fitted into the groove 215c to increase the bonding area between the first flexible portion 24c and the keycap 21. Furthermore, the narrow-on-the-outer-and-wide-on-the-inner shape of the groove 215c further enhances the pull-out resistance of the first flexible portion 24c, thereby increasing the connection strength between the first flexible portion 24c and the keycap 21 and further increasing its service life.

[0083] like Figure 14 As shown, in this embodiment, the keycap 21 has a groove 215d, which includes a first groove 216 and a second groove 217 spaced apart from each other. The first flexible portion 24d and the keycap 21 are made of different materials, and the first flexible portion 24d has a first fitting portion 242d. After the two-material injection molding process, the first fitting portion 242d is fitted into the first groove 216 and the second groove 217. By fitting the first fitting portion 242d into multiple grooves (the first groove 216 and the second groove 217), the bonding area between the first flexible portion 24d and the keycap 21 can be further increased, thereby improving the connection strength between the first flexible portion 24d and the keycap 21 and further increasing the service life.

[0084] like Figure 15 As shown, in this embodiment, the keycap 21 has a groove 215e, which includes a first groove 216' and a second groove 217' arranged at intervals from each other. The depth of the first groove 216' is different from the depth of the second groove 217' (the depth of the first groove 216' is greater than the depth of the second groove 217'). The first flexible part 24e and the keycap 21 are made of different materials. The first flexible part 24e has a first fitting part 242e. After the two-material injection molding process, the first fitting part 242e is fitted into the first groove 216' and the second groove 217'. In this way, by fitting the first fitting part 242e into multiple grooves (the first groove 216' and the second groove 217') of different depths, in addition to increasing the bonding area between the first flexible part 24e and the keycap 21, the pull-out resistance of the first flexible part 24e is also improved, thereby increasing the connection strength between the first flexible part 24e and the keycap 21 and further increasing the service life.

[0085] like Figures 10 to 15As shown, in embodiments where the first flexible portions 24', 24a-24e are made of different materials than the keycap 21, the first flexible portions 24', 24a-24e can be made of materials with higher strength or better flexibility to further improve service life. For example, the first flexible portions 24', 24a-24e can be made of materials such as rubber, silicone, or polyoxymethylene (POM). Among these, polyoxymethylene has high rigidity, good elasticity, and can withstand high loads and stresses, thus more effectively improving the service life of the first flexible portions 24', 24a-24e. In some embodiments, the second flexible portion 26 can also be made of a different material than the keycap 21, and the second flexible portion 26 can be made of the same material as the first flexible portions 24', 24a-24e described above, which will not be repeated here.

[0086] In summary, the keyboard device according to embodiments of the present invention integrates the keycaps, first linkage, and second linkage of the composite key structure, allowing the entire composite key structure to be manufactured using the same set of molds. Furthermore, during assembly, after the first linkage and second linkage are combined, they only need to be mounted onto the substrate to complete the assembly process, thus reducing manufacturing and labor costs.

[0087] Although the technical content of the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any modifications and refinements made by those skilled in the art without departing from the spirit of the present invention should be included within the scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope defined in the appended claims.

Claims

1. A keyboard device, characterized in that, include: A substrate includes a top surface, the top surface having an assembly area, the assembly area having a first assembly and a second assembly; as well as A composite button structure is disposed on the assembly area. The composite button structure includes a keycap, a first linkage member, and a second linkage member integrally connected to each other. The keycap includes a first side and a second side that are opposite to each other; The first linkage includes a first connecting side and a first assembly side that are opposite to each other. The first connecting side and the first side of the keycap are integrally connected to a first flexible portion, so that the first linkage can swing relative to the keycap. The first assembly side is movably connected to the first assembly of the substrate, and a first pivot is provided between the first connecting side and the first assembly side. The second linkage includes a second connecting side and a second assembly side that are opposite to each other. The second connecting side and the second side of the keycap are integrally connected to a second flexible portion, so that the second linkage can swing relative to the keycap. The second assembly side is movably connected to the second assembly of the substrate, and a second pivot is provided between the second connecting side and the second assembly side. The second pivot is pivotally disposed on the first pivot of the first linkage.

2. The keyboard device as claimed in claim 1, characterized in that, The keycap includes a cover plate and a brim, the brim being connected around the cover plate and extending toward the base plate, and the first flexible portion and the second flexible portion being integrally connected to the brim.

3. The keyboard device as claimed in claim 1, characterized in that, The thickness of the first flexible part is less than the thickness of the first linkage.

4. The keyboard device as claimed in claim 1, characterized in that, The first flexible part has at least one first hollow part.

5. The keyboard device as claimed in claim 4, characterized in that, The number of the at least one first hollow portion is multiple, and the first hollow portions are spaced apart from each other.

6. The keyboard device as claimed in claim 1, characterized in that, The first flexible part and the keycap are injection molded from two materials, so that the material of the first flexible part is different from the material of the keycap.

7. The keyboard device as claimed in claim 6, characterized in that, The material of the first linkage component is the same as that of the keycap.

8. The keyboard device as claimed in claim 6, characterized in that, The keycap has a groove, and the first flexible part has a first fitting part that fits into the groove.

9. The keyboard device as claimed in claim 8, characterized in that, The cross-section of the groove has an opening and a groove bottom, the width of the opening being smaller than the width of the groove bottom.

10. The keyboard device as claimed in claim 6, characterized in that, The keycap has a first groove and a second groove, and the first flexible part has a first fitting part that fits into the first groove and the second groove.

11. The keyboard device as claimed in claim 10, characterized in that, The depth of the first groove is different from the depth of the second groove.

12. The keyboard device as claimed in claim 1, characterized in that, The first pivot member of the first linkage includes an elongated groove, and the second pivot member is pivotally disposed in the elongated groove and can slide relative to the elongated groove.

13. The keyboard device as claimed in claim 12, characterized in that, The first pivot member further includes an assembly port that communicates with the elongated slot, and the width of the assembly port is smaller than the width of the second pivot member.

14. The keyboard device as claimed in claim 13, characterized in that, The first linkage also has at least one guide ramp, which is connected to the edge of the assembly port.

15. The keyboard device as claimed in claim 12, characterized in that, The long groove also has an arc-shaped surface, and the second pivot member slides along the arc-shaped surface relative to the long groove.

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