Keyboard device and key module

Abstract

The utility model discloses a keyboard device and a key module, the keyboard device comprises the key module, and the key module comprises a substrate, a key cap and a balance assembly. The key cap is provided with an inner surface, and the inner surface faces the substrate and is provided with a first side edge and a second side edge. A first movable plate of the balance assembly comprises a first shaft plate and a plurality of first extension plates, the first shaft plate is rotatably assembled on the inner surface and arranged along the first side edge, and each first extension plate is provided with a first extension side and a first pivot joint part. A second movable plate of the balance assembly comprises a second shaft plate and a plurality of second extension plates, the second shaft plate is rotatably assembled on the inner surface and arranged along the second side edge, and each second extension plate is provided with a second extension side and a second pivot joint part. A first interval is formed between the first shaft plate and the second shaft plate, a second interval is formed between the first extending side and the second extending side, and the second interval is smaller than the first interval.

Description

Technical Field

[0001] This utility model relates to an input device, and more particularly to a keyboard device and key module. Background Technology

[0002] Keyboards have become an indispensable and common input device in modern life. Computer products that we often encounter in daily life (such as laptops, desktop computers or tablets) or large control or processing equipment in industry often use keyboards for operation or text input.

[0003] For larger or longer keys on a keyboard (such as the space bar), users often cannot accurately press the center of the key every time during operation. When users press the side or corner of the key, the force on the key is not evenly distributed, causing the key to not descend smoothly or evenly, which affects the generation of signals, resulting in user inconvenience and poor operating feel. Utility Model Content

[0004] In view of the above, in one embodiment, a key module is provided, including a substrate, keycaps, and a balancing assembly. The keycaps are located on the substrate and have an inner surface facing the substrate and having opposing first and second sides. The balancing assembly includes a first movable plate and a second movable plate. The first movable plate includes a first shaft plate and a plurality of first extension plates. The first shaft plate is rotatably connected to the inner surface and disposed along the first side. The plurality of first extension plates extend from one side of the first shaft plate, and each first extension plate has a first extension side and a first pivot portion. The first extension side is rotatably connected to the substrate, and the first pivot portion is located between the first extension side and the first shaft plate. The second movable plate includes a second shaft plate and a plurality of second extension plates. The second shaft plate is rotatably connected to the inner surface and disposed along the second side. The plurality of second extension plates extend from one side of the second shaft plate, and each second extension plate has a second extension side and a second pivot portion. The second extension side is rotatably connected to the substrate, and the second pivot portion is located between the second extension side and the second shaft plate, and the second pivot portion is pivotally disposed on the first pivot portion. There is a first gap between the first shaft plate and the second shaft plate, and a second gap between the first extension side of each first extension plate and the second extension side of each second extension plate, wherein the second gap is smaller than the first gap.

[0005] In one embodiment of the present invention, the first spacing is the shortest distance between the side of the first shaft plate connected to the keycap and the side of the second shaft plate connected to the keycap, and the second spacing is the shortest distance between the first extension side of each first extension plate and the second extension side of each second extension plate.

[0006] In one embodiment of the present invention, each of the second extension plates of the second movable plate is located between two of the plurality of first extension plates.

[0007] In one embodiment of the present invention, the first movable plate includes a first reinforcing plate, which is connected between two of the plurality of first extension plates.

[0008] In one embodiment of the present invention, at least a portion of the first reinforcing plate overlaps with the adjacent second extension plate in a vertical direction, the vertical direction being perpendicular to the substrate.

[0009] In one embodiment of the present invention, the first movable plate includes a first reinforcing plate, the first reinforcing plate includes two connecting plates and a U-shaped plate, and the U-shaped plate is connected between the two connecting plates.

[0010] In one embodiment of the present invention, a circuit board is stacked on the substrate, the U-shaped plate has a recess, and a portion of the circuit board is located within the recess.

[0011] In one embodiment of the present invention, the substrate has a plurality of through holes, and the two connecting plates are respectively located in the plurality of through holes.

[0012] In one embodiment of the present invention, the second extension plate adjacent to the first reinforcing plate has a groove, and the keycap can be selectively moved toward the substrate to a pressing position. When the keycap is in the pressing position, the U-shaped plate of the first reinforcing plate is located in the groove.

[0013] In one embodiment of the present invention, the thickness of each connecting plate of the first reinforcing plate is less than the thickness of the first extension plate, so that a receiving groove is formed between each connecting plate, the U-shaped plate and the adjacent first extension plate, and the keycap can selectively move toward the substrate to a pressing position. When the keycap is in the pressing position, a local area of ​​the second extension plate is located in the receiving groove.

[0014] In one embodiment of the present invention, the first shaft plate of the first movable plate has a first axial groove, and a first reinforcing rod is assembled in the first axial groove.

[0015] In one embodiment of the present invention, the first shaft plate is rotatably connected to the inner surface by the first reinforcing rod.

[0016] In one embodiment of the present invention, the first movable plate has two first side grooves, the two first side grooves are connected to the opposite ends of the first axial groove and extend to the plurality of first extension plates respectively, the first reinforcing rod includes a first axial rod and two first side rods, the first axial rod is assembled in the first axial groove, and the two first side rods are respectively assembled in the two first side grooves.

[0017] In one embodiment of the present invention, the second shaft plate of the second movable plate has a second axial groove, and a second reinforcing rod is assembled in the second axial groove.

[0018] In one embodiment of the present invention, the second shaft plate is rotatably connected to the inner surface by the second reinforcing rod.

[0019] In one embodiment of the present invention, the second movable plate has two second side grooves, the two second side grooves are connected to the opposite ends of the second axial groove and extend to the plurality of second extension plates respectively, the second reinforcing rod includes a second axial rod and two second side rods, the second axial rod is assembled in the second axial groove, and the two second side rods are respectively assembled in the two second side grooves.

[0020] In one embodiment of the present invention, the first shaft plate of the first movable plate has a plurality of first connectors, the plurality of first connectors being rotatably assembled to the inner surface, and two of the plurality of first connectors being adjacent to opposite ends of the first side.

[0021] In one embodiment of the present invention, the second shaft plate of the second movable plate has a plurality of second connectors, the plurality of second connectors being rotatably assembled to the inner surface, and two of the plurality of second connectors being adjacent to opposite ends of the second side.

[0022] In one embodiment of this utility model, one of the first pivot portion and the second pivot portion is a shaft, and the other is a shaft hole.

[0023] In another embodiment, a keyboard device is provided that includes the above-described key module.

[0024] In summary, the key module according to this embodiment of the present invention, by having a first shaft plate of a first movable plate arranged along the first side of the keycap and a second shaft plate of a second movable plate arranged along the second side of the keycap, ensures that when any part of the keycap (e.g., a corner or edge of the keycap) is pressed, the pressing force can be transmitted to other parts of the keycap through the first and second movable plates, allowing the keycap to descend evenly and providing a good tactile feel. Furthermore, this embodiment of the present invention, by having a greater distance between the first and second shaft plates than between the first and second extension sides, allows the first and second shaft plates to be as close as possible to the first and second sides of the keycap, thus eliminating the need for additional balancing rods and achieving advantages such as cost savings and simplified assembly. Attached Figure Description

[0025] Figure 1 This is a perspective view of an embodiment of the keyboard device of this utility model;

[0026] Figure 2 This is an exploded perspective view of the first embodiment of the button module of this utility model;

[0027] Figure 3 This is a partial exploded perspective view of the first embodiment of the button module of this utility model;

[0028] Figure 4 This is a top view of the first embodiment of the button module of this utility model;

[0029] Figure 5 This is a side view of the first embodiment of the button module of this utility model;

[0030] Figure 6 for Figure 4 A sectional view along line segment 6-6;

[0031] Figure 7 This is a pressing cross-sectional view of the first embodiment of the button module of this utility model;

[0032] Figure 8 for Figure 4 A sectional view along line segment 8-8;

[0033] Figure 9 This is another pressing cross-sectional view of the first embodiment of the button module of this utility model;

[0034] Figure 10 This is an exploded perspective view of the second embodiment of the button module of this utility model;

[0035] Figure 11 This is a top view of the second embodiment of the button module of this utility model;

[0036] Figure 12 for Figure 11A sectional view along line segment 12-12;

[0037] Figure 13 This is an exploded perspective view of the third embodiment of the button module of this utility model;

[0038] Figure 14 This is a top view of the third embodiment of the button module of this utility model;

[0039] Figure 15 for Figure 14 A sectional view along line segment 15-15;

[0040] Figure 16 This is an exploded perspective view of the fourth embodiment of the button module of this utility model;

[0041] Figure 17 This is a partial exploded perspective view of the fourth embodiment of the button module of this utility model;

[0042] Figure 18 This is a top view of the fourth embodiment of the button module of this utility model;

[0043] Figure 19 This is a side view of the fourth embodiment of the button module of this utility model;

[0044] Figure 20 for Figure 18 A sectional view along line segment 20-20;

[0045] Figure 21 This is a pressing cross-sectional view of the fourth embodiment of the button module of this utility model;

[0046] Figure 22 for Figure 18 A sectional view along line segment 22-22;

[0047] Figure 23 This is another pressing cross-sectional view of the fourth embodiment of the button module of this utility model.

[0048] [Symbol Explanation]

[0049] 1: Keyboard device

[0050] 2,2a: Button module

[0051] 30:Substrate

[0052] 31: Through hole

[0053] 32: Connector

[0054] 35: Circuit Board

[0055] 36: Reset component

[0056] 40: Keycaps

[0057] 41: Inner surface

[0058] 411: First side

[0059] 412: Second side

[0060] 413: First short side

[0061] 414: Second shorter side

[0062] 42: Connector

[0063] B: Balancing components

[0064] 50: First activity board

[0065] 51: First shaft plate

[0066] 511: First axial groove

[0067] 512: First side groove

[0068] 513: First connector

[0069] 52: First Reinforcing Plate

[0070] 521: Connecting plate

[0071] 522: Receptacle

[0072] 525: U-shaped plate

[0073] 526: concave part

[0074] 53: First reinforcement bar

[0075] 531: First axial rod

[0076] 532: First side rod

[0077] 55: First Extension Plate

[0078] 551: First extension side

[0079] 552: First pivot section

[0080] 553: First group of packages received

[0081] 60: Second Activity Board

[0082] 61: Second shaft plate

[0083] 611: Second axial groove

[0084] 612: Second side groove

[0085] 613: Second connector

[0086] 63: Second reinforcement bar

[0087] 631: Second axial rod

[0088] 632: Second side rod

[0089] 65: Second Extension Plate

[0090] 651: Second extension side

[0091] 652: Second pivot section

[0092] 653: Second group of receiving parts

[0093] 654: Tank

[0094] D1: First spacing

[0095] D2: Second spacing

[0096] V: Vertical direction

[0097] F: First horizontal direction

[0098] S: Second horizontal direction

[0099] L1, L2, L3, L4: Shortest distance Detailed Implementation

[0100] 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 description 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 of this utility model; therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effects and purposes achieved by this utility model, should still fall within the scope of the technical content disclosed in this utility model. The same reference numerals will be used to denote the same or similar elements in all the drawings.

[0101] Figure 1 This is a perspective view of an embodiment of the keyboard device of this utility model. Figure 2 This is an exploded perspective view of the first embodiment of the button module of this utility model. Figure 3 This is a partial exploded perspective view of the first embodiment of the button module of this utility model. Figures 1 to 3As shown, the keyboard device 1 includes a key module 2, which includes a base plate 30, keycaps 40, and a balance component B. The keyboard device 1 can be an input device for various electronic products (such as desktop computers, laptop computers, or other electronic devices). The keyboard device 1 may include multiple keys, for example, multiple letter keys, multiple number keys, a space key, an enter key, and a Caps Lock key.

[0102] like Figures 1 to 3 As shown, the substrate 30 can be a rigid plate made of metal (e.g., aluminum, steel, alloy, etc.) or plastic. In this embodiment, a circuit board 35 is stacked on the substrate 30, wherein the circuit board 35 can be a general circuit board (PCB), a membrane circuit board, a flexible printed circuit board (FPCB), or a rigid-flex PCB, etc.

[0103] like Figures 1 to 3 As shown, there can be one or more keycaps 40. The keycaps 40 are located on the substrate 30 and the circuit board 35, and can be pressed by the user to input text, symbols, or commands. For example, a reset element 36 can be provided between the keycap 40 and the circuit board 35. The reset element 36 can be an elastic body such as a rubber dome, metal dome, plastic dome, spring, or sheet spring, and can be located at the center of the circuit board 35. Thus, when the user presses the keycap 40 towards the substrate 30, the keycap 40 compresses the reset element 36, accumulating elastic force and triggering the circuit board 35 to generate a signal. When the user releases the keycap 40, the accumulated elastic force in the reset element 36 moves the keycap 40 away from the substrate 30, returning it to its unpressed position.

[0104] like Figures 1 to 3 As shown, the keycap 40 can be a multiplier key with a relatively large aspect ratio among multiple keys. For example, the multiplier key can be the space key, the enter key, or the caps lock key. However, this utility model is not limited to this. The keycap 40 can also be a key with a larger area in the keyboard device 1.

[0105] like Figures 1 to 3As shown, the keycap 40 in this embodiment is a space key. The keycap 40 has an inner surface 41 facing the substrate 30 and has a first side 411, a second side 412, a first short side 413, and a second short side 414 that are connected to each other. In this embodiment, the keycap 40 is rectangular. The first side 411 and the second side 412 are the long sides of the keycap 40. The length of the first side 411 is the same as the length of the second side 412 and they are parallel to each other. The length of the first side 411 is greater than the length of the first short side 413 and the length of the second short side 414. The first short side 413 and the second short side 414 are parallel to each other and perpendicular to the first side 411.

[0106] like Figure 2 and Figure 3 As shown, the number of balance components B corresponds to the number of keycaps 40. Balance components B are located between the keycaps 40 and the substrate 30. Balance components B include a first movable plate 50 and a second movable plate 60. The first movable plate 50 includes a first shaft plate 51 and a plurality of first extension plates 55. The first shaft plate 51 is rotatably connected to the inner surface 41 of the keycap 40 and is disposed along the first side edge 411. The plurality of first extension plates 55 extend from one side of the first shaft plate 51 and are spaced apart from each other. Each first extension plate 55 has a first extension side 551, which is rotatably connected to the substrate 30. Preferably, the plurality of first extension plates 55 extend from the side of the first shaft plate 51 that is not connected to the keycap 40, and the first extension side 551 is located on the side of the first extension plate 55 that is not connected to the first shaft plate 51.

[0107] like Figure 2 and Figure 3 As shown, in this embodiment, the first shaft plate 51 of the first movable plate 50 and a plurality of first extension plates 55 are integrally formed. Each first extension plate 55 extends in a direction away from the side of the first shaft plate 51 connected to the keycap 40. Here, each first extension plate 55 extends in a direction perpendicular to the first shaft plate 51. There are four first extension plates 55, two of which are located at opposite ends of the first shaft plate 51, and the other two are located near the center of the first shaft plate 51.

[0108] Figure 4 This is a top view of the first embodiment of the button module of this utility model. Figure 5 This is a side view of the first embodiment of the button module of this utility model. Figures 2 to 5 As shown, in this embodiment, the substrate 30 has a plurality of engagement seats 32 spaced apart from each other, wherein each engagement seat 32 may be a hook that extends upward integrally from the substrate 30 (for example, the shape of the hook may be L-shaped, U-shaped, or T-shaped). Each first extension plate 55 of the first movable plate 50 may have at least one first engagement member 553 (e.g., Figure 5As shown), the first set of connectors 553 is a shaft and is located on the first extension side 551 of each first extension plate 55. The first set of connectors 553 of each first extension plate 55 can be respectively assembled on the assembly seat 32 of the substrate 30, and the first set of connectors 553 can rotate relative to the assembly seat 32 of the substrate 30. The inner surface 41 of the keycap 40 has a plurality of connecting seats 42, wherein the connecting seats 42 can be pivot seats or hooks (for example, the shape of the hooks can be L-shaped, U-shaped or T-shaped). Some of the connecting seats 42 (here, six connecting seats 42) are arranged along the first side 411 of the inner surface 41, and the other connecting seats 42 (here, five connecting seats 42) are arranged along the second side 412 of the inner surface 41. The first shaft plate 51 of the first movable plate 50 has a plurality of first connecting members 513, wherein each first connecting member 513 is a shaft, and the plurality of first connecting members 513 are respectively assembled on the plurality of connecting seats 42 on the first side 411, so that the first connecting members 513 can rotate relative to the connecting seats 42 of the keycap 40. In this way, when the keycap 40 is pressed by the user and moves toward the base plate 30, the first movable plate 50 can swing relative to the base plate 30 and the keycap 40.

[0109] like Figure 2 and Figure 3 As shown, the second movable plate 60 of the balancing assembly B includes a second shaft plate 61 and a plurality of second extension plates 65. The second shaft plate 61 is rotatably connected to the inner surface 41 of the keycap 40 and is disposed along the second side edge 412. The plurality of second extension plates 65 extend from one side of the second shaft plate 61 and are spaced apart from each other. Each second extension plate 65 has a second extension side 651, which is rotatably connected to the substrate 30. Preferably, the plurality of second extension plates 65 extend from the side of the second shaft plate 61 that is not connected to the keycap 40, and the second extension side 651 is located on the side of the second extension plate 65 that is not connected to the second shaft plate 61. It should be noted that different second extension plates 65 may have different structures, but one end of each second extension plate 65 extends from the second shaft plate 61 and the other end is rotatably connected to the substrate 30.

[0110] like Figures 2 to 5As shown, in this embodiment, the second shaft plate 61 of the second movable plate 60 and a plurality of second extension plates 65 are integrally formed, and each second extension plate 65 extends in a direction away from the side of the second shaft plate 61 connected to the keycap 40. Here, each second extension plate 65 extends in a direction perpendicular to the second shaft plate 61, and there are two second extension plates 65, with each second extension plate 65 located between two first extension plates 55. Each of the second extension plates 65 of the second movable plate 60 has at least one second set of connectors 653 on its second extension side 651. These second set of connectors 653 are located on the second extension side 651 of each second extension plate 65. The second set of connectors 653 of each second extension plate 65 and the first set of connectors 553 of each first extension plate 55 can both be shafts, and the extension direction of the shafts can be parallel to the first shaft plate 51 and the second shaft plate 61. The second set of connectors 653 of each second extension plate 65 can be respectively assembled onto the assembly seat 32 of the base plate 30, allowing the second set of connectors 653 to rotate relative to the assembly seat 32 of the base plate 30. The second shaft plate 61 of the second movable plate 60 has a plurality of second connectors 613, each of which is a shaft. The plurality of second connectors 613 are respectively assembled onto a plurality of connection seats 42 on the second side 412 of the keycap 40, allowing the second connectors 613 to rotate relative to the connection seats 42 of the keycap 40. Therefore, when the keycap 40 is pressed by the user and moves toward the base plate 30, the second movable plate 60 can also swing relative to the base plate 30 and the keycap 40.

[0111] like Figures 2 to 5 As shown, each first extension plate 55 of the first movable plate 50 has at least one first pivot portion 552, located between the first extension side 551 and the first shaft plate 51. Each second extension plate 65 of the second movable plate 60 has at least one second pivot portion 652 located between the second extension side 651 and the second shaft plate 61. One of the first pivot portion 552 and the second pivot portion 652 can be a shaft, and the other can be a shaft hole (e.g., a teardrop-shaped shaft hole). The first pivot portion 552 and the second pivot portion 652 are pivotally connected to each other, allowing the first movable plate 50 and the second movable plate 60 to be cross-connected and to rotate relative to each other about the first pivot portion 552 and the second pivot portion 652 as axes. Please refer to... Figure 5 and Figure 6 As shown, preferably, the shortest distance L1 from the center of the first pivot portion 552 of each first extension plate 55 of the first movable plate 50 to the first extension side 551 may be less than the shortest distance L2 from the center of the first pivot portion 552 to the side of the first axis plate 51 connected to the keycap 40. The shortest distance L3 from the center of the second pivot portion 652 of each second extension plate 65 of the second movable plate 60 to the second extension side 651 may be less than the shortest distance L4 from the center of the second pivot portion 652 to the side of the second axis plate 61 connected to the keycap 40.

[0112] like Figures 2 to 5 As shown, a first distance D1 exists between the first shaft plate 51 of the first movable plate 50 and the second shaft plate 61 of the second movable plate 60, and a second distance D2 exists between the first extension side 551 of each first extension plate 55 of the first movable plate 50 and the second extension side 651 of each second extension plate 65 of the second movable plate 60. In this embodiment, the keyboard device 1 has a first horizontal direction F and a second horizontal direction S, wherein the first horizontal direction F is parallel to the first side 411 of the keycap 40 or the substrate 30, and the second horizontal direction S is perpendicular to the first horizontal direction F and parallel to the first short side 413 of the keycap 40 or the substrate 30. Figure 5 As shown, the first spacing D1 can be the shortest distance between the side of the first switch plate 51 connected to the keycap 40 and the side of the second switch plate 61 connected to the keycap 40, or the first spacing D1 can also be the spacing between the first switch plate 51 and the second switch plate 61 in the second horizontal direction S. The second spacing D2 can be the shortest distance between the first extension side 551 of each first extension plate 55 of the first movable plate 50 and the second extension side 651 of each second extension plate 65 of the second movable plate 60, or the second spacing D2 can also be the spacing between the first extension side 551 and the second extension side 651 in the second horizontal direction S, and the second spacing D2 is smaller than the first spacing D1, so that the balance component B has an overall shape that is wider at the top and narrower at the bottom.

[0113] In addition, such as Figures 5 to 7 As shown, it should be noted that when the keycap 40 is pressed by the user and moves toward the substrate 30, causing the first movable plate 50 and the second movable plate 60 to swing relative to the substrate 30 and the keycap 40, the first pitch D1 or the second pitch D2 will change during the movement of the first movable plate 50 and the second movable plate 60, but the first pitch D1 will still be greater than the second pitch D2.

[0114] In summary, this embodiment of the invention, by having the first shaft plate 51 of the first movable plate 50 arranged along the first side 411 of the keycap 40 and the second shaft plate 61 of the second movable plate 60 arranged along the second side 412 of the keycap 40, ensures that when any part of the keycap 40 (e.g., a corner or edge of the keycap 40) is pressed, the pressing force can be transmitted through the first movable plate 50 and the second movable plate 60 to other parts of the keycap 40, allowing the keycap 40 to descend evenly and providing a good tactile feel. Furthermore, as... Figure 5 As shown, in this embodiment of the utility model, the first distance D1 between the first shaft plate 51 and the second shaft plate 61 is greater than the second distance D2 between the first extension side 551 and the second extension side 651, so that the first shaft plate 51 and the second shaft plate 61 can be as close as possible to the first side 411 and the second side 412 of the keycap 40, thereby eliminating the need for additional balance rods and achieving advantages such as cost savings and simplified assembly process.

[0115] like Figure 2 and Figure 3 As shown, two of the first connecting members 513 of the first shaft plate 51 of the first movable plate 50 can be respectively adjacent to the opposite ends of the first side 411 of the keycap 40, so that the two first connecting members 513 are as close as possible to the corners of the keycap 40. Two of the second connecting members 613 of the second shaft plate 61 of the second movable plate 60 can be respectively adjacent to the opposite ends of the second side 412 of the keycap 40, so that the two second connecting members 613 are as close as possible to the corners of the keycap 40. In this way, when one corner of the keycap 40 is pressed by the user, the pressing force can be immediately transmitted to the other corners, so that the keycap 40 drops evenly as a whole.

[0116] In some embodiments, the length of each first extension plate 55 of the first movable plate 50 in the first horizontal direction F may be different from the length of each second extension plate 65 of the second movable plate 60 in the first horizontal direction F. For example Figure 2 and Figure 3 As shown, in this embodiment, the length of each second extension plate 65 in the first horizontal direction F is greater than the length of each first extension plate 55 in the first horizontal direction F. Preferably, when the second movable plate 60 includes two second extension plates 65, the length of each second extension plate 65 in the first horizontal direction F can be between 1 / 3 and 1 / 2 of the length of the keycap 40, so that the second movable plate 60 has better structural strength and can improve the efficiency of force transmission of the balancing component B.

[0117] like Figure 2 and Figure 3 As shown, the first movable plate 50 may include at least one first reinforcing plate 52. In this embodiment, there are two first reinforcing plates 52. Each first reinforcing plate 52 is parallel to the first shaft plate 51 and perpendicular to each first extension plate 55. Each first reinforcing plate 52 is connected between the first extension sides 551 of two of the first extension plates 55, so that the first movable plate 50 has better structural strength and can improve the efficiency of force transmission of the balancing component B. In addition, in this embodiment, at least a portion of each first reinforcing plate 52 overlaps with the adjacent second extension plate 65 in a vertical direction V, where the vertical direction V is perpendicular to the substrate 30, the first horizontal direction F, and the second horizontal direction S.

[0118] Figure 6 for Figure 4 A sectional view along line segment 6-6. Figure 7 This is a pressing cross-sectional view of the first embodiment of the button module of this utility model. Figure 8 for Figure 4 A sectional view along line segment 8-8. Figure 9 This is another pressing cross-sectional view of the first embodiment of the button module of this utility model. (See image below.) Figures 3 to 9 As shown, each first reinforcing plate 52 of the first movable plate 50 includes two connecting plates 521 and a U-shaped plate 525, with the U-shaped plate 525 connected between the two connecting plates 521. Each second extension plate 65 of the second movable plate 60 adjacent to each first reinforcing plate 52 has a groove 654. In this embodiment, the groove 654 is a hollow groove corresponding to the U-shaped plate 525 of the first reinforcing plate 52. Please refer to... Figure 6 and Figure 7 As shown, when the keycap 40 is pressed by the user, it moves toward the base plate 30 to a pressing position (such as...). Figure 7 When the position shown is reached, the U-shaped plate 525 of each of the first reinforcing plates 52 of the first movable plate 50 can be located in the groove 654 of each of the second extension plates 65 of the second movable plate 60, so that the balance assembly B can be flattened after being compressed as a whole, and the thickness of the keyboard device 1 can be further reduced.

[0119] like Figures 3 to 9 As shown, each of the first reinforcing plates 52 of the first movable plate 50 has a U-shaped plate 525 with a recess 526, and a partial area of ​​the circuit board 35 on the substrate 30 corresponds to the recess 526. The substrate 30 has a plurality of through holes 31, and the two connecting plates 521 of each of the first reinforcing plates 52 of the first movable plate 50 respectively correspond to the plurality of through holes 31. Please refer to this for further details. Figure 8 and Figure 9 As shown, when the keycap 40 is pressed by the user, it moves toward the base plate 30 to a pressing position (such as...). Figure 9 When the circuit board 35 is located in the position shown, a local area of ​​the circuit board 35 can be located in the recess 526 of the U-shaped plate 525 of each first reinforcing plate 52, and each connecting plate 521 of each first reinforcing plate 52 can be recessed into the through hole 31 of the substrate 30. This design can not only expand the usable area of ​​the circuit board 35 and provide more space for circuit layout, but also improve the convenience of circuit arrangement by eliminating the need for the circuit on the circuit board 35 to bypass the balancing component B, and reduce the overall thickness of the keyboard device 1 to make it thinner.

[0120] like Figure 2 , Figure 3 , Figure 8 and Figure 9 As shown, the longer the length of the recess 526 of each of the first reinforcing plates 52, the larger the usable area of ​​the circuit board 35 can be. Preferably, when the second movable plate 60 includes two second extension plates 65, the length of the recess 526 of each of the first reinforcing plates 52 can be between 1 / 3 and 1 / 2 of the length of the keycap 40, so that the usable area of ​​the circuit board 35 can be increased as much as possible to provide more space for circuit layout.

[0121] Please check again Figure 8 and Figure 9 As shown, in this embodiment, when the keycap 40 is not pressed by the user (e.g. Figure 8 As shown, a portion of the circuit board 35 is located within the recess 526 of the U-shaped plate 525 of each of the first reinforcing plates 52, and each connecting plate 521 of each of the first reinforcing plates 52 is located within the through hole 31 of the substrate 30, thereby further reducing the overall thickness of the keyboard device 1.

[0122] like Figure 3 , Figure 8 and Figure 9 As shown, the thickness of each connecting plate 521 of each first reinforcing plate 52 of the first movable plate 50 can be less than the thickness of the first extension plate 55, so that a receiving groove 522 is formed between each connecting plate 521, the U-shaped plate 525 and the adjacent first extension plate 55. Thus, as... Figure 9 As shown, when the keycap 40 is pressed by the user and moves toward the base plate 30 to the pressing position, a portion of each of the second extension plates 65 of the second movable plate 60 can be located in the receiving groove 522. Each of the connecting plates 521 constituting the first reinforcing plate 52 and each of the second extension plates 65 of the second movable plate 60 overlap each other in the aforementioned vertical direction V, so that the balance component B can be more flattened after being pressed, thereby further reducing the overall thickness of the keyboard device 1.

[0123] Figure 10 This is an exploded perspective view of the second embodiment of the button module of this utility model. Figure 11 This is a top view of the second embodiment of the button module of this utility model. Figure 12 for Figure 11 A sectional view along line segment 12-12. (See example.) Figures 10 to 12 As shown, the difference between this embodiment and the first embodiment described above is at least that the first shaft plate 51 of the first movable plate 50 in this embodiment has a first axial groove 511 and two first side grooves 512. The two first side grooves 512 are connected to the two opposite ends of the first axial groove 511. A first reinforcing rod 53 is assembled in the first axial groove 511 and the two first side grooves 512. The first reinforcing rod 53 includes a first axial rod 531 and two first side rods 532. The first axial rod 531 is assembled in the first axial groove 511, and the two first side rods 532 are respectively assembled in the two first side grooves 512. The second shaft plate 61 of the second movable plate 60 further has a second axial groove 611 and two second side grooves 612. The two second side grooves 612 are connected to the opposite ends of the second axial groove 611. A second reinforcing rod 63 is assembled in the second axial groove 611 and the two second side grooves 612. The second reinforcing rod 63 includes a second axial rod 631 and two second side rods 632. The second axial rod 631 is assembled in the second axial groove 611, and the two second side rods 632 are respectively assembled in the two second side grooves 612. In this way, the first reinforcing rod 53 and the second reinforcing rod 63 can further increase the structural strength of the first movable plate 50 and the second movable plate 60, thereby improving the efficiency of force transmission of the balancing component B.

[0124] In some embodiments, each first side bar 532 of the first reinforcing bar 53 and each second side bar 632 of the second reinforcing bar 63 may be a straight bar or a bent bar (e.g., an L-shaped, U-shaped, V-shaped or other irregularly shaped bent bar). For example Figures 10 to 12 As shown, in this embodiment, the first axial rod 531 of the first reinforcing rod 53 and the second axial rod 631 of the second reinforcing rod 63 are parallel to each other. Each first side rod 532 of the first reinforcing rod 53 is an L-shaped rod and is integrally bent from the end of the first axial rod 531. Each second side rod 632 of the second reinforcing rod 63 is an L-shaped rod and is integrally bent from the end of the second axial rod 631.

[0125] In addition, such as Figures 10 to 12 As shown, the first shaft plate 51 of the first movable plate 50 is rotatably connected to the inner surface 41 of the keycap 40 by a first reinforcing rod 53. In this embodiment, the first connectors 513 at both ends of the first shaft plate 51 are rotatably connected to two of the connecting seats 42 of the keycap 40, and the first shaft plate 51 is rotatably connected to the other connecting seats 42 of the keycap 40 by the first reinforcing rod 53, so as to improve the connection strength between the first movable plate 50 and the keycap 40.

[0126] In addition, such as Figures 2 to 5 As shown, in the first embodiment, the first pivot portion 552 of each first extension plate 55 is a teardrop-shaped shaft hole, and the second pivot portion 652 of each second extension plate 65 is a shaft located on both sides of each second extension plate 65. Figures 10 to 12 As shown, another difference between this embodiment and the first embodiment is that, in the second embodiment, the first pivot portion 552 of each first extension plate 55 is a U-shaped shaft hole, and the second pivot portion 652 of each second extension plate 65 is a shaft and protrudes from one side of each second extension plate 65.

[0127] Figure 13 This is an exploded perspective view of the third embodiment of the button module of this utility model. Figure 14 This is a top view of the third embodiment of the button module of this utility model. Figure 15 for Figure 14 A sectional view along line segment 15-15. (See example.) Figures 13 to 15As shown, the difference between this embodiment and the second embodiment described above is at least that the two first side grooves 512 of the first movable plate 50 in this embodiment extend further to the two first extension plates 55 near the two ends of the first shaft plate 51, so that the first side rods 532 of the first reinforcing rods 53 assembled in the first side grooves 512 can simultaneously reinforce the first extension plates 55, thereby further improving the structural strength of the first movable plate 50. The two second side grooves 612 of the second movable plate 60 also extend to the two second extension plates 65, so that the second side rods 632 of the second side grooves 612 of the second reinforcing rods 63 can simultaneously reinforce the second extension plates 65, thereby improving the structural strength of the second movable plate 60. In addition, in this embodiment, each of the first side rods 532 of the first reinforcing rod 53 is a straight rod and is integrally bent from the end of the first axial rod 531, and each of the first side rods 532 extends to the corresponding first extension plate 55. Each of the second side rods 632 of the second reinforcing rod 63 is a straight rod and is integrally bent from the end of the second axial rod 631, and each of the second side rods 632 extends to the corresponding second extension plate 65.

[0128] In addition, such as Figures 13 to 15 As shown, another difference between this embodiment and the second embodiment described above is that, in addition to the first shaft plate 51 being rotatably connected to the inner surface 41 of the keycap 40 by the first reinforcing rod 53, the second shaft plate 61 of the second movable plate 60 in this embodiment is also rotatably connected to the inner surface 41 of the keycap 40 by the second reinforcing rod 63. For example, in this embodiment, the second connectors 613 at both ends of the second shaft plate 61 are rotatably connected to two of the connecting seats 42 of the keycap 40, and the second shaft plate 61 is rotatably connected to the other connecting seats 42 of the keycap 40 by the second reinforcing rod 63, so as to improve the connection strength between the second movable plate 60 and the keycap 40.

[0129] Figure 16 This is an exploded perspective view of the fourth embodiment of the button module of this utility model. Figure 17 This is a partial exploded perspective view of the fourth embodiment of the button module of this utility model. Figure 18 This is a top view of the fourth embodiment of the button module of this utility model. Figure 19 This is a side view of the fourth embodiment of the button module of this utility model. Figure 20 for Figure 18 A cross-sectional view along line segment 20-20. Figure 21 This is a pressing cross-sectional view of the fourth embodiment of the button module of this utility model. Figure 22 for Figure 18 A sectional view along line segment 22-22. Figure 23 This is another pressing cross-sectional view of the fourth embodiment of the button module of this utility model. (See image below.) Figures 16 to 23As shown, the key module 2a in this embodiment also includes a base plate 30, a keycap 40, and a balance assembly B. The first movable plate 50 of the balance assembly B includes a first shaft plate 51 and a plurality of first extension plates 55. The first shaft plate 51 is rotatably connected to the inner surface 41 of the keycap 40 and is disposed along the first side edge 411. The plurality of first extension plates 55 extend from one side of the first shaft plate 51 and are spaced apart from each other. Each first extension plate 55 has a first extension side 551, which is rotatably connected to the base plate 30. The second movable plate 60 of the balancing assembly B includes a second shaft plate 61 and a plurality of second extension plates 65. The second shaft plate 61 is rotatably assembled to the inner surface 41 and disposed along the second side edge 412. The plurality of second extension plates 65 extend from one side of the second shaft plate 61 and are spaced apart from each other. Each second extension plate 65 has a second extension side 651, which is rotatably assembled to the base plate 30. Furthermore, the first distance D1 between the first shaft plate 51 and the second shaft plate 61 is greater than the second distance D2 between the first extension side 551 and the second extension side 651 (e.g., ...). Figure 19 (As shown). In this way, when any part of the keycap 40 (e.g., a corner or edge of the keycap 40) is pressed, the pressing force can be transmitted to other parts of the keycap 40 through the first movable plate 50 and the second movable plate 60, so that the keycap 40 drops evenly and provides a good operating feel. Moreover, the first switch plate 51 and the second switch plate 61 can be as close as possible to the first side 411 and the second side 412 of the keycap 40, so that no additional balance rods are needed, achieving advantages such as cost saving and simplified assembly process.

[0130] like Figures 16 to 23 As shown, one difference between this embodiment and the first embodiment described above lies in the number of first extension plates 55 and second extension plates 65. In this embodiment, the first movable plate 50 has six first extension plates 55, which are spaced apart from each other. The first movable plate 50 includes two first reinforcing plates 52, one of which is connected between the two first extension plates 55 near one end of the keycap 40, and the other is connected between the two first extension plates 55 near the other end of the keycap 40. The second movable plate 60 has four second extension plates 65, and each second extension plate 65 is located between two first extension plates 55. Therefore, compared to the first embodiment described above, this embodiment has more first extension plates 55 and second extension plates 65, which can improve the support effect of the balance component B and the connection strength between the first movable plate 50 and the second movable plate 60, thereby improving the efficiency of force transmission of the balance component B.

[0131] like Figures 16 to 23As shown, another difference between this embodiment and the first embodiment described above lies in the structure of the groove 654 of the second extension plate 65. In this embodiment, the groove 654 of the second extension plate 65 is an inner groove (e.g., Figure 20 and Figure 21 (As shown) Instead of a hollowed-out groove, the second extension plate 65 can have better structural strength. Furthermore, as... Figures 20 to 23 As shown, when the keycap 40 is pressed by the user, it moves toward the base plate 30 to the pressing position (e.g. Figure 21 and Figure 23 When the position shown is reached, the U-shaped plates 525 of each of the first reinforcing plates 52 of the first movable plate 50 can also be located in the grooves 654 of each of the second extension plates 65 of the second movable plate 60, so that the balance assembly B as a whole can be nearly flattened after being compressed.

[0132] Although the technical content of this utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit this utility model. Any modifications and refinements made by those skilled in the art without departing from the spirit of this utility model should be included within the scope of this utility model. Therefore, the protection scope of this utility model shall be determined by the scope defined in the claims.

Claims

1. A button module, characterized in that, include: One substrate; A keycap, located on the substrate, the keycap having an inner surface facing the substrate and having a first side and a second side opposite to each other; and A balancing assembly includes a first movable plate and a second movable plate. The first movable plate includes a first shaft plate and a plurality of first extension plates. The first shaft plate is rotatably connected to the inner surface and disposed along the first side. The plurality of first extension plates extend from one side of the first shaft plate, and each first extension plate has a first extension side and a first pivot portion. The first extension side is rotatably connected to the base plate, and the first pivot portion is located between the first extension side and the first shaft plate. The second movable plate includes a second shaft plate and a plurality of second extension plates. The second shaft plate is rotatably connected to the inner surface and disposed along the second side. The plurality of second extension plates extend from one side of the second shaft plate, and each second extension plate has a second extension side and a second pivot portion. The second extension side is rotatably connected to the base plate, and the second pivot portion is located between the second extension side and the second shaft plate. The second pivot portion is pivotally disposed on the first pivot portion. Wherein, there is a first gap between the first shaft plate and the second shaft plate, and there is a second gap between the first extension side of each first extension plate and the second extension side of each second extension plate, the second gap being smaller than the first gap.

2. The button module as described in claim 1, characterized in that, The first spacing is the shortest distance between the side of the first axis plate connected to the keycap and the side of the second axis plate connected to the keycap, and the second spacing is the shortest distance between the first extension side of each first extension plate and the second extension side of each second extension plate.

3. The button module as described in claim 1, characterized in that, Each of the second extension plates of the second movable plate is located between two of the plurality of first extension plates.

4. The button module as described in claim 1, characterized in that, The first movable plate includes a first reinforcing plate, which is connected between two of the plurality of first extension plates.

5. The button module as described in claim 4, characterized in that, At least a portion of the first reinforcing plate overlaps with the adjacent second extension plate in a vertical direction perpendicular to the substrate.

6. The button module as described in claim 1, characterized in that, The first movable plate includes a first reinforcing plate, which includes two connecting plates and a U-shaped plate, with the U-shaped plate connected between the two connecting plates.

7. The button module as described in claim 6, characterized in that, A circuit board is stacked on the substrate, the U-shaped plate has a recess, and a portion of the circuit board is located within the recess.

8. The button module as described in claim 6, characterized in that, The substrate has multiple through holes, and the two connecting plates are respectively located in the multiple through holes.

9. The button module as described in claim 6, characterized in that, The second extension plate adjacent to the first reinforcing plate has a groove, and the keycap can be selectively moved toward the substrate to a pressing position, wherein the U-shaped plate of the first reinforcing plate is located in the groove when the keycap is in the pressing position.

10. The button module as described in claim 6, characterized in that, The thickness of each connecting plate of the first reinforcing plate is less than the thickness of the first extension plate, so that a receiving groove is formed between each connecting plate, the U-shaped plate and the adjacent first extension plate. The keycap can be selectively moved toward the substrate to a pressing position. When the keycap is in the pressing position, a local area of ​​the second extension plate is located in the receiving groove.

11. The button module as described in claim 1, characterized in that, The first shaft plate of the first movable plate has a first axial groove, and a first reinforcing rod is assembled in the first axial groove.

12. The button module as described in claim 11, characterized in that, The first shaft plate is rotatably assembled to the inner surface by the first reinforcing rod.

13. The button module as described in claim 11, characterized in that, The first movable plate has two first side grooves, which are connected to the opposite ends of the first axial groove and extend to the plurality of first extension plates respectively. The first reinforcing rod includes a first axial rod and two first side rods. The first axial rod is assembled in the first axial groove, and the two first side rods are respectively assembled in the two first side grooves.

14. The button module as described in claim 1, characterized in that, The second shaft plate of the second movable plate has a second axial groove, and a second reinforcing rod is assembled in the second axial groove.

15. The button module as described in claim 14, characterized in that, The second shaft plate is rotatably assembled to the inner surface by the second reinforcing rod.

16. The button module as described in claim 14, characterized in that, The second movable plate has two second side grooves, which are connected to the opposite ends of the second axial groove and extend to the plurality of second extension plates respectively. The second reinforcing rod includes a second axial rod and two second side rods. The second axial rod is assembled in the second axial groove, and the two second side rods are respectively assembled in the two second side grooves.

17. The button module as described in claim 1, characterized in that, The first shaft plate of the first movable plate has a plurality of first connectors, which are rotatably assembled to the inner surface, and two of the plurality of first connectors are respectively adjacent to the opposite ends of the first side.

18. The button module as described in claim 1, characterized in that, The second shaft plate of the second movable plate has a plurality of second connectors, which are rotatably assembled to the inner surface, and two of the plurality of second connectors are respectively adjacent to the opposite ends of the second side.

19. The button module as described in claim 1, characterized in that, One of the first pivot portion and the second pivot portion is a shaft, and the other is a shaft hole.

20. A keyboard device, characterized in that, Includes the button module as described in any one of claims 1 to 19.

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