CN117524767A - Keyboard device - Google Patents

Abstract

A keyboard device comprises a substrate, a keycap, a first connecting piece and a first spring arm structure. The substrate includes a top surface having an assembly area. The keycap is arranged above the assembly area and is provided with a bottom surface facing the assembly area. The first connecting piece is connected between the keycap and the assembly area, and comprises a first assembling side and a second assembling side which are opposite to each other, wherein the first assembling side is pivoted on the bottom surface of the keycap, and the second assembling side is pivoted on the base plate. The first spring arm structure comprises a connecting end and a free end which are opposite to each other, the connecting end is connected to the first assembling side, and the free end is propped against the bottom surface of the key cap.

Description

Keyboard device

Technical Field

The present invention relates to an input device, and more particularly, to a keyboard device.

Background

A keyboard is one of the common input devices of the present electronic devices, and is often used for operating or inputting characters in computer products (such as notebook computers, desktop computers or tablet computers) or industrial large-scale control devices or processing devices which are commonly contacted in daily life.

The key structure of the keyboard on the market at present mainly comprises a bottom plate, a key cap and a connecting piece positioned between the bottom plate and the key cap, wherein the top of the connecting piece is pivoted on the key cap and can rotate and move relative to the key cap, and the bottom of the connecting piece is pivoted on the bottom plate and can rotate and move relative to the bottom plate, so that movable gaps tend to exist between the top of the connecting piece and the key cap and between the bottom of the connecting piece and the bottom of the connecting piece, and the bottom of the connecting piece.

Disclosure of Invention

In view of the foregoing, in an embodiment, a keyboard device is provided and includes a substrate, a keycap, a first connecting member and a first spring arm structure. The substrate includes a top surface having an assembly area. The keycap is arranged above the assembly area and is provided with a bottom surface facing the assembly area. The first connecting piece is connected between the keycap and the assembly area, and comprises a first assembling side and a second assembling side which are opposite to each other, wherein the first assembling side is pivoted on the bottom surface of the keycap, and the second assembling side is pivoted on the base plate. The first spring arm structure comprises a connecting end and a free end which are opposite to each other, the connecting end is connected to the first assembling side, and the free end is propped against the bottom surface of the key cap.

In another embodiment, a keyboard device is provided, which includes a substrate, a keycap, a first connecting member, and a first spring arm member. The substrate includes a top surface having an assembly area. The keycap is arranged above the assembly area and is provided with a bottom surface facing the assembly area. The first connecting piece is connected between the keycap and the assembly area, and comprises a first assembling side and a second assembling side which are opposite to each other, wherein the first assembling side is pivoted on the bottom surface of the keycap, and the second assembling side is pivoted on the base plate. The first elastic arm piece comprises a connecting part and a free part which are opposite to each other, the connecting part is connected to the second assembling side, and the free part is propped against the top surface of the substrate.

In summary, according to the keyboard device of the embodiment of the invention, the first spring arm structure is connected to the first assembling side of the first connecting piece, and the free end of the first spring arm structure abuts against the bottom surface of the keycap, or the first spring arm structure is connected to the second assembling side of the first connecting piece, and the free portion of the first spring arm abuts against the top surface of the substrate, so that when a specific frequency exists in the use environment of the keyboard device (for example, a user plays music through a loudspeaker to generate specific audio frequency) to generate resonance, the first spring arm structure or the first spring arm structure can eliminate or greatly reduce vibration conditions, noise generated by resonance can be effectively reduced, and the keycap and the first connecting piece can be more stable in the pressing movement process.

Drawings

FIG. 1 is a partial perspective view of a first embodiment of a keyboard apparatus of the present invention;

FIG. 2 is a partially exploded perspective view of a first embodiment of the keyboard apparatus of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2;

FIG. 4 is another enlarged partial view of FIG. 2;

FIG. 5 is a plan view of a first embodiment of the keyboard apparatus of the present invention;

FIG. 6 is a cross-sectional view taken along line 6-6 of FIG. 5;

FIG. 7 is a press actuation diagram of FIG. 6;

FIG. 8 is a cross-sectional view taken along line 8-8 of FIG. 5;

FIG. 9 is a press actuation diagram of FIG. 8;

FIG. 10 is a partial perspective view of a second embodiment of the keyboard apparatus of the present invention;

FIG. 11 is a partial perspective view of a third embodiment of the keyboard apparatus of the present invention;

FIG. 12 is a partial plan view of a fourth embodiment of the keyboard apparatus of the present invention;

FIG. 13 is a partial perspective view of a fifth embodiment of the keyboard apparatus of the present invention;

FIG. 14 is a plan view of a fifth embodiment of the keyboard apparatus of the present invention;

FIG. 15 is a cross-sectional view taken along line 15-15 of FIG. 14;

fig. 16 is a cross-sectional view of fig. 14 taken along line 16-16.

[ symbolic description ]

1 keyboard device

10 substrate

11 top surface

12 assembly area

121 first Assembly

122 second assembly

19 circuit board

20 key cap

21 bottom surface

211 first pivot seat

212 second pivot seat

30 first connector

31 first group of sides

311,312 groove

32 second group of sides

33 first pivot member

34 first connecting arm

341 first shaft lever

35 second connecting arm

351 second shaft rod

40 second connector

41 third group of sides

42 fourth group side

43 second pivot

44 third connecting arm

441 third shaft

45 fourth connecting arm

451 fourth shaft rod

50,50a,50b first spring arm structure

51 connection end

52 free end

521,521a bump

522,522a curved surface

54 extending arm

55,55a,55b, second spring arm structure

56 connecting end

57 free end

571,571a bumps

572 curved surface

60 first spring arm member

61 connecting portion

62 free portion

621 bump

622 curved surface

65 second spring arm member

66 connecting portion

67 free portion

Detailed Description

It should be noted that, in the descriptions of the embodiments, the terms "first," second, "" third, "and fourth" are used to describe different elements, and these elements are not limited by such predicates. Furthermore, the same reference numbers will be used throughout the drawings to refer to the same or like elements.

Fig. 1 is a partial perspective view of a first embodiment of a keyboard apparatus according to the present invention, fig. 2 is a partial exploded perspective view of the first embodiment of the keyboard apparatus according to the present invention, fig. 3 is a partial enlarged view of fig. 2, and fig. 4 is another partial enlarged view of fig. 2. As shown in fig. 1 and 2, the keyboard apparatus 1 of the present embodiment includes a substrate 10, a keycap 20, a first connecting member 30, a second connecting member 40, and a first spring arm structure 50. The keyboard device 1 can be applied to various electronic products (such as input devices of desktop computers, notebook computers or other electronic devices) for being pressed by a user to generate corresponding signals.

As shown in fig. 1 and 2, in the present embodiment, the number of key Caps 20 is plural, for example, the plurality of key Caps 20 may include Caps Lock key, shift key, ctrl key, enter key, backspace key, etc. The substrate 10 may be a hard plate made of metal (such as iron, aluminum or alloy) or plastic, and has a function of supporting components, the substrate 10 includes a top surface 11, the top surface 11 has an assembly area 12 for assembling each key cap 20, that is, the assembly area 12 is a local area (such as square area shown in fig. 2) of the substrate 10 for corresponding assembly of each key cap 20.

As shown in fig. 2, for example, one of the assembly regions 12 is used, at least one first assembly 121 and at least one second assembly 122 are disposed on the assembly region 12 of the substrate 10 for assembling the first connecting member 30 and the second connecting member 40 respectively. In the present embodiment, the number of the first assemblies 121 is two, the two first assemblies 121 are disposed at intervals and adjacent to one side of the assembly area 12, the number of the second assemblies 122 is also two, and the two second assemblies 122 are disposed at intervals and adjacent to the other side of the assembly area 12.

In some embodiments, each of the first assemblies 121 and each of the second assemblies 122 may be a hook base integrally bent and extended upwards from the substrate 10 (as shown in fig. 2, the first assemblies 121 and the second assemblies 122 are L-shaped hook bases, but may also be U-shaped or T-shaped hook bases with other shapes). In some embodiments, each of the first assemblies 121 and each of the second assemblies 122 may be separate components and assembled on the assembly region 12 of the substrate 10.

As shown in fig. 2, a key cap 20 is disposed over the assembly area 12, the key cap 20 having a bottom surface 21 facing the assembly area 12. In the present embodiment, at least one first pivot seat 211 and at least one second pivot seat 212 are provided on the bottom surface 21 of the key cap 20 for assembling the first connecting member 30 and the second connecting member 40, respectively. In the present embodiment, the number of the first pivot seats 211 is two, the two first pivot seats 211 are disposed at intervals and adjacent to one side of the bottom surface 21, the number of the second pivot seats 212 is also two, and the two second pivot seats 212 are disposed at intervals and adjacent to the other side of the bottom surface 21.

As shown in fig. 1 and 2, a circuit board 19 is disposed on the substrate 10 in a stacking manner, and the first connecting member 30 and the second connecting member 40 are movably connected between the keycap 20 and the assembly area 12. Therefore, when the key cap 20 is pressed, the first connecting member 30 and the second connecting member 40 can move relative to the key cap 20 to guide the key cap 20 to descend toward the substrate 10 to press a reset member (not shown here) to trigger the circuit board 19 to generate a signal, and when the key cap 20 is released, the elastic force accumulated by the reset member can push the key cap 20 up to the non-pressed position.

In some embodiments, the circuit board 19 may be a printed circuit board (Printed Circuit Board, PCB), a thin film circuit board (Membrane Circuit Board), a Flexible Print CircuitBoard, FPCB, a Flexible-Rigid composite circuit board (rib-Flex PCB), or the like. The restoring member may be an elastic member such as a rubber dome (rubber dome), a metal dome (metal dome), a spring, or a spring plate, so that the restoring member can accumulate elastic force when being pressed.

As shown in fig. 2, the first connecting member 30 includes a first assembling side 31 and a second assembling side 32 opposite to each other, wherein the first assembling side 31 is adjacent to the key cap 20 with respect to the second assembling side 32, and the first assembling side 31 is pivotally disposed on the bottom surface 21 of the key cap 20, and the second assembling side 32 is pivotally disposed on the base plate 10. In the present embodiment, the first connecting member 30 is in a frame shape (herein, a rectangular frame shape), the first assembling side 31 has a first connecting arm 34, the first connecting arm 34 is provided with two first shafts 341, and the two first shafts 341 are respectively located at two opposite ends of the first connecting arm 34 and are respectively pivoted to the two first pivot seats 211 of the bottom surface 21 of the key cap 20, so that the first assembling side 31 can rotate and move relative to the key cap 20. The second assembling side 32 of the first connecting member 30 has a second connecting arm 35, the second connecting arm 35 is provided with two second shafts 351, and the second shafts 351 are respectively located at two opposite ends of the second connecting arm 35 and are respectively pivoted to the two first assembling members 121 of the substrate 10, so that the second assembling side 32 can rotate and move relative to the substrate 10.

As shown in fig. 2, the second connecting member 40 includes a third assembling side 41 and a fourth assembling side 42 opposite to each other, wherein the third assembling side 41 is adjacent to the key cap 20 with respect to the fourth assembling side 42, and the third assembling side 41 is pivotally disposed on the bottom surface 21 of the key cap 20, and the fourth assembling side 42 is pivotally disposed on the base plate 10. In this embodiment, the second connecting member 40 is also in a frame shape (herein, a rectangular frame shape), the third assembling side 41 has a third connecting arm 44, the third connecting arm 44 is provided with two third shafts 441, and the two third shafts 441 are respectively located at opposite ends of the third connecting arm 44 and are respectively pivoted to the two second pivot seats 212 of the bottom surface 21 of the key cap 20, so that the third assembling side 41 can rotate and move relative to the key cap 20. The fourth assembling side 42 of the second connecting member 40 has a fourth connecting arm 45, the fourth connecting arm 45 is provided with two fourth shafts 451, and the two fourth shafts 451 are respectively located at two opposite ends of the fourth connecting arm 45 and are respectively pivoted to the two second assembling members 122 of the substrate 10, so that the fourth assembling side 42 can rotate and move relative to the substrate 10.

As shown in fig. 2, in the present embodiment, the size of the first connecting member 30 is larger than that of the second connecting member 40, so that the first connecting member 30 can be sleeved outside the second connecting member 40, a first pivot member 33 is disposed between the first assembling side 31 and the second assembling side 32 of the first connecting member 30, a second pivot member 43 is disposed between the third assembling side 41 and the fourth assembling side 42 of the second connecting member 40, and the second pivot member 43 is pivotally disposed on the first pivot member 33, so that the first connecting member 30 and the second connecting member 40 are assembled with each other to form a scissor-type connecting member, and the first connecting member 30 and the second connecting member 40 can rotate relative to each other.

In some embodiments, one of the first pivot member 33 and the second pivot member 43 may be a pivot, and the other may be a groove, and the pivot may be pivoted to each other corresponding to the insertion groove. In addition, the size of the second connecting member 40 may be larger than that of the first connecting member 30, so that the second connecting member 40 can be sleeved outside the first connecting member 30, which is not limited.

However, the above embodiments are merely examples, in some embodiments, the first connecting member 30 and the second connecting member 40 may be respectively and independently connected between the key cap 20 and the substrate 10, for example, the first connecting member 30 and the second connecting member 40 may be parallel to each other or symmetrically arranged, for example, the first connecting member 30 and the second connecting member 40 may be symmetrically arranged based on the central axis of the key cap 20, and both the first connecting member 30 and the second connecting member 40 may have an a-shape, a V-shape or a butterfly shape according to the inclined direction.

As shown in fig. 2 to 4, the number of the first spring arm structures 50 is more than one and is disposed on the first assembling side 31 of the first connecting member 30 to prop against the bottom surface 21 of the key cap 20. In addition, the third assembling side 41 of the second connecting member 40 may also be provided with at least one second spring arm structure 55 to abut against the bottom surface 21 of the key cap 20.

As shown in fig. 2 to 4, in the present embodiment, the keyboard apparatus 1 includes two first elastic arm structures 50 and two second elastic arm structures 55, wherein the two first elastic arm structures 50 are respectively adjacent to opposite ends of the first connecting arm 34, and the two second elastic arm structures 55 are respectively adjacent to opposite ends of the third connecting arm 44. Taking one of the first spring arm structure 50 and the second spring arm structure 55 as an example, the first spring arm structure 50 is an elastic arm and includes a connecting end 51 and a free end 52 opposite to each other, and the connecting end 51 of the first spring arm structure 50 is connected to the first assembling side 31 of the first connecting member 30. The second spring arm structure 55 is a spring arm comprising a connecting end 56 and a free end 57 opposite to each other, the connecting end 56 being connected to the third set of sides 41 of the second connection member 40. The free ends 52 and 57 of the first and second spring arm structures 50 and 55 can move freely and deform the first and second spring arm structures 50 and 55 as a whole when an external force is applied, and the first and second spring arm structures 50 and 55 can return to a state when the external force is not applied.

As shown in fig. 2 to 4, in the present embodiment, when the free end 52 of the first arm structure 50 receives an external force, the first arm structure 50 swings around the connection end 51 to generate deformation, and when the external force is released, the first arm structure 50 swings around the connection end 51 to return to the state when the external force is not applied. Similarly, when the free end 57 of the second spring arm structure 55 receives an external force, the second spring arm structure 55 swings around the connecting end 56 to deform, and when the external force is released, the second spring arm structure 55 swings around the connecting end 56 to return to its state when no external force is received.

As shown in fig. 2 to 4, in the present embodiment, the connection end 51 of the first spring arm structure 50 is integrally connected to the first assembling side 31 of the first connecting member 30, that is, the first spring arm structure 50 and the first connecting member 30 may be integrally formed, so as to reduce manufacturing cost and manufacturing process. In addition, as shown in fig. 3, in the present embodiment, the first assembling side 31 of the first connecting member 30 is provided with a groove 311, and the first spring arm structure 50 is located in the groove 311, so as to further save the material of the first connecting member 30. In addition, the second spring arm structure 55 and the second connecting member 40 may be integrally formed, and thus, the description thereof will not be repeated.

However, the above embodiments are merely examples, and in some embodiments, the first spring arm structure 50 may be a separate component and assembled to the first connecting member 30, and the second spring arm structure 55 may be a separate component and assembled to the second connecting member 40. In addition, the first spring arm structure 50 may be disposed at other positions of the first connecting member 30 according to the actual product requirement, and the second spring arm structure 55 may be disposed at other positions of the second connecting member 40 according to the actual product requirement.

As shown in fig. 3, when the first assembling side 31 of the first connecting member 30 is not assembled to the key cap 20, the free ends 52 of the first spring arm structures 50 protrude from the surface of the first connecting member 30, and the height of the free ends 52 is higher than that of the first assembling side 31, so, as shown in fig. 5 and 6, when the first assembling side 31 of the first connecting member 30 is assembled to the key cap 20, the free ends 52 of the first spring arm structures 50 can continuously and elastically abut against the bottom surface 21 of the key cap 20, so that a specific frequency (such as a specific audio frequency generated by playing music through a speaker) exists in the use environment of the keyboard device 1 to generate resonance, the first spring arm structures 50 can avoid the mutual collision of the key cap 20 and the first connecting member 30 due to the gap therebetween, thereby eliminating or greatly reducing the vibration situation and effectively reducing the noise generated by resonance.

In addition, when the keycap 20 moves up and down relative to the substrate 10 at different height positions, the free end 52 of the first spring arm structure 50 can continuously and elastically prop against the bottom 21 of the keycap 20 to avoid shaking, so as to improve the stability of the keycap 20 and the first connector 30 during the moving process. As shown in fig. 6, when the key cap 20 is not pressed and is located at the first height position, the free end 52 of the first spring arm structure 50 elastically abuts against the bottom surface 21 of the key cap 20, so that the first spring arm structure 50 generates micro deformation or micro deformation which is not easy to be perceived (i.e. the state of the key cap under no external force) and has a first inclination angle. As shown in fig. 7, when the key cap 20 is lowered to the second height position toward the substrate 10 by an external force (e.g., the user presses the key cap 20), the key cap 20 will press the free end 52 of the first spring arm structure 50 during the lowering of the key cap 20, so that the first spring arm structure 50 swings around the connecting end 51 to deform, and the first spring arm structure 50 is changed from the first inclination angle to the second inclination angle (where the second inclination angle is larger than the first inclination angle) and continuously and elastically abuts against the bottom surface 21 of the key cap 20. In addition, when the key cap 20 is released to release the external force, the key cap 20 can be lifted to return to the first height position (i.e. the non-pressed position), so that the first spring arm structure 50 returns to the micro-deformation or the micro-deformation state which is not easy to be perceived.

As shown in fig. 4, when the third assembling side 41 of the second connecting member 40 is not assembled to the key cap 20, the free ends 57 of the second spring arm structures 55 protrude from the surface of the second connecting member 40, and the height of the free ends 57 is higher than that of the third assembling side 41, so, as shown in fig. 8 and 9, when the third assembling side 41 of the second connecting member 40 is assembled to the key cap 20, the free ends 57 of the second spring arm structures 55 also continuously and elastically abut against the bottom surface 21 of the key cap 20, so that a specific frequency (such as a specific audio frequency generated by playing music through a speaker) exists in the use environment of the keyboard device 1 to generate resonance, the second spring arm structures 55 can prevent the key cap 20 and the second connecting member 40 from mutually striking due to gaps therebetween, thereby further enhancing the elimination or reduction of vibration conditions, and achieving effective reduction of noise generated by resonance.

In addition, as shown in fig. 8 and 9, when the keycap 20 moves up and down at different height positions relative to the substrate 10, the free end 57 of the second spring arm structure 55 can continuously and elastically abut against the bottom surface 21 of the keycap 20 to avoid shaking, so as to improve the stability of the keycap 20 and the second connecting piece 40 during the moving process. In addition, the first spring arm structure 50 and the second spring arm structure 55 are respectively disposed on the first assembling side 31 of the first connecting member 30 and the third assembling side 41 of the second connecting member 40, so that the stress of the keycap 20 can be more even, and the situation that the keycap 20 is deviated or skewed can be reduced.

In some embodiments, the structures of the first spring arm structure 50 and the second spring arm structure 55 may be the same or different, the structures of the two first spring arm structures 50 may be the same or different, and the structures of the two second spring arm structures 55 may be the same or different. For example, each of the first arm structure 50 and each of the second arm structure 55 may be one of the following embodiments, as shown in fig. 3, 6 and 7, taking the first arm structure 50 as an example, in this embodiment, the free end 52 of the first arm structure 50 is further provided with a bump 521, and the bump 521 has a curved surface 522, and the curved surface 522 abuts against the bottom 21 of the key cap 20. Therefore, in the process of lifting the key cap 20 to different height positions to swing the first spring arm structure 50, the friction between the bottom surface 21 of the key cap 20 and the first spring arm structure 50 can be effectively reduced by the curved surface 522 of the protruding block 521, so that the resistance of the user pressing the key cap 20 is reduced.

In some embodiments, there may be point, line or surface contact between the free end 52 of the first spring arm structure 50 and the bottom surface 21 of the key cap 20. For example, as shown in fig. 3 and 6, in the present embodiment, the curved surface 522 of the bump 521 of the free end 52 is a curved surface, so when the curved surface 522 abuts against the bottom surface 21 of the key cap 20, a line contact is formed between the curved surface 522 and the bottom surface 21.

Alternatively, as shown in fig. 10, which is a partial perspective view of a second embodiment of the keyboard apparatus according to the present invention, the difference between the present embodiment and the embodiment of fig. 6 is that the curved surface 522a of the bump 521a provided on the free end 52 of the first spring arm structure 50a of the present embodiment is a hemispherical surface, so when the top end of the curved surface 522a abuts against the bottom surface 21 of the key cap 20, a point contact is formed between the curved surface 522a and the bottom surface 21 of the key cap 20, wherein the friction force between the bottom surface 21 of the key cap 20 and the first spring arm structure 50a can be further reduced by the point contact, and the resistance of the user pressing the key cap 20 can be further reduced.

However, the above embodiments are merely examples, and in some embodiments, the bump 521 provided on the free end 52 of the first spring arm structure 50 may be a conical structure, a spherical structure, a columnar structure or a strip rib structure, so as to form different contact manners with the bottom surface 21 of the key cap 20.

As shown in fig. 3 and 5, the free end 52 of the first spring arm structure 50 is further extended with an extension arm 54, for example, in this embodiment, the extension arm 54 is perpendicular to the first spring arm structure 50, so that the extension arm 54 and the first spring arm structure 50 are L-shaped as a whole, and the extension arm 54 abuts against the bottom 21 of the key cap 20. Therefore, the extension arm 54 can increase the area of the first spring arm structure 50 propped against the bottom surface 21 of the key cap 20, so as to more effectively eliminate or reduce the vibration.

As shown in fig. 2 to 4, in the present embodiment, the two first arm structures 50 have the same structure, the structures of the second arm structures 55 are different from the structures of the first arm structures 50, the curved surfaces 522 of the bumps 521 on the free ends 52 of the first arm structures 50 are curved surfaces, the curved surfaces 572 of the bumps 571 on the free ends 57 of the second arm structures 55 are hemispherical surfaces, and the structures of the second arm structures 55 are different from the structures of the first arm structures 50.

However, the structure of the second spring arm structure 55 and the structure of the first spring arm structure 50 may be the same or similar, for example, the bump 521 of the first spring arm structure 50 and the bump 571 of the second spring arm structure 55 may be arc-shaped structures, cone-shaped structures, spherical structures, columnar structures or elongated rib structures. For example, as shown in fig. 10, in the present embodiment, the bump 521a of the first arm structure 50a and the bump 571 of the second arm structure 55 are both hemispherical structures, and form the same or similar structure as the first arm structure 50a and the second arm structure 55, or, as shown in fig. 11, in the present embodiment, the bump 521 of the first arm structure 50 and the bump 571a of the second arm structure 55a are both arc structures, and form the same or similar structure as the second arm structure 55a and the first arm structure 50.

In some embodiments, the extending direction of the first spring arm structure 50 may be perpendicular or parallel to the extending direction of the first connecting arm 34, and the extending direction of the second spring arm structure 55 may be perpendicular or parallel to the extending direction of the third connecting arm 44. For example, as shown in fig. 10, in the present embodiment, the extending direction of the first spring arm structure 50a is perpendicular to the extending direction of the first connecting arm 34 of the first connecting member 30, and the extending direction of the second spring arm structure 55 is perpendicular to the extending direction of the third connecting arm 44 of the second connecting member 40. Alternatively, as shown in fig. 12, in the present embodiment, the extending direction of the first spring arm structure 50b is parallel to the extending direction of the first connecting arm 34 of the first connecting member 30, and the extending direction of the second spring arm structure 55b is parallel to the extending direction of the third connecting arm 44 of the second connecting member 40.

Fig. 13 to 16 illustrate a fifth embodiment of the present invention, as shown in fig. 13 to 16, the difference between the present embodiment and each of the above embodiments is that the second assembling side 32 of the first connecting member 30 of the present embodiment is further connected to at least one first arm member 60, the fourth assembling side 42 of the second connecting member 40 is further connected to at least one second arm member 65, where the number of the first arm members 60 and the second arm members 65 is two, and the two first arm members 60 are respectively adjacent to opposite ends of the second assembling side 32, and the two second arm members 65 are respectively adjacent to opposite ends of the fourth assembling side 42.

As mentioned above, the structure of the first spring arm 60 may be the same as or similar to the structure of the first spring arm structure 50, and the structure of the second spring arm 65 may be the same as or similar to the structure of the second spring arm structure 55, for example, in this embodiment, each first spring arm 60 is a spring arm structure and includes a connecting portion 61 and a free portion 62 opposite to each other, the connecting portion 62 is connected to the second assembling side 32 of the first connecting member 30, each second spring arm 65 is also a spring arm structure and includes a connecting portion 66 and a free portion 67 opposite to each other, and the connecting portion 66 is connected to the fourth assembling side 42 of the second connecting member 40.

In addition, as shown in fig. 13 to 16, when the second assembling side 32 of the first connecting member 30 and the fourth assembling side 42 of the second connecting member 40 are assembled to the substrate 10, the free portion 62 of each first spring arm member 60 and the free portion 67 of each second spring arm member 65 can continuously and elastically abut against the top surface 11 of the substrate 10, so that when a specific frequency resonance occurs in the use environment of the keyboard device 1, each first spring arm member 60 and each second spring arm member 65 can avoid the substrate 10, the first connecting member 30 and the second connecting member 40 from mutually striking due to the gaps therebetween, thereby eliminating or greatly reducing the vibration situation and effectively reducing the noise generated by the resonance.

As shown in fig. 16, in the present embodiment, the free portion 62 of the first spring arm 60 is further provided with a bump 621, and the bump 621 has a curved surface 622, and the curved surface 622 abuts against the top surface 11 of the substrate 10. Therefore, in the process of lifting and moving the keycap 20 to different height positions to enable the first spring arm piece 60 to swing, the friction force between the top surface 11 of the substrate 10 and the first spring arm piece 60 can be effectively reduced through the arrangement of the curved surface 622 of the protruding block 621, and the resistance of a user to press the keycap 20 is further reduced. In some embodiments, the free portion 67 of each second spring arm 65 may also be provided with the above-mentioned bump having a curved surface, which will not be repeated here.

As shown in fig. 13 to 16, in the present embodiment, the connection portion 61 of the first spring arm 60 is integrally connected to the second assembling side 32 of the first connecting member 30, that is, the first spring arm 60 and the first connecting member 30 may be integrally formed, so as to reduce the manufacturing cost and the manufacturing process. In addition, as shown in fig. 13 and 14, in the present embodiment, the second assembling side 32 of the first connecting member 30 is provided with a groove 312, and the first spring arm 60 is located in the groove 312, so that the material of the first connecting member 30 can be further saved. In addition, the second spring arm member 65 and the second connecting member 40 may be integrally formed, and thus, the description thereof will not be repeated.

In some embodiments, the extending direction of the first spring arm 60 may be perpendicular or parallel to the extending direction of the second connecting arm 35 of the first connecting member 30, and the extending direction of the second spring arm 65 may also be perpendicular or parallel to the extending direction of the fourth connecting arm 45 of the second connecting member 40. For example, as shown in fig. 14, in the present embodiment, the extending direction of the first spring arm member 60 is perpendicular to the extending direction of the second connecting arm 35 of the first connecting member 30, and the extending direction of the second spring arm member 65 is perpendicular to the extending direction of the fourth connecting arm 45 of the second connecting member 40. In another embodiment, the extending direction of the first arm member 60 may be the same as the extending direction of the first arm structure 50b and parallel to the extending direction of the second connecting arm 35, and the extending direction of the second arm member 65 may be the same as the extending direction of the second arm structure 55b and parallel to the extending direction of the fourth connecting arm 45.

In summary, according to the keyboard device of the embodiment of the invention, the first spring arm structure is connected to the first assembling side of the first connecting piece, and the free end of the first spring arm structure abuts against the bottom surface of the keycap, or the first spring arm structure is connected to the second assembling side of the first connecting piece, and the free portion of the first spring arm abuts against the top surface of the substrate, so that when a specific frequency exists in the use environment of the keyboard device (for example, a user plays music through a loudspeaker to generate specific audio frequency) to generate resonance, the first spring arm structure or the first spring arm structure can eliminate or greatly reduce vibration conditions, noise generated by resonance can be effectively reduced, and the keycap and the first connecting piece can be more stable in the pressing movement process.

Although the present invention has been described with reference to the preferred embodiments, it should be understood that the invention is not limited thereto, but rather, it should be understood that various changes and modifications can be made by one skilled in the art without departing from the spirit of the invention.

Claims (19)

1. A keyboard apparatus, comprising:

a substrate including a top surface having an assembly area;

the key cap is arranged above the assembly area and is provided with a bottom surface facing the assembly area;

the first connecting piece is connected between the key cap and the assembly area and comprises a first assembling side and a second assembling side which are opposite to each other, the first assembling side is pivoted on the bottom surface of the key cap, and the second assembling side is pivoted on the base plate; and

the first spring arm structure comprises a connecting end and a free end which are opposite to each other, the connecting end is connected with the first assembling side, and the free end is propped against the bottom surface of the key cap.

2. The keyboard apparatus of claim 1, wherein the connecting end of the first spring arm structure is integrally connected to the first assembling side.

3. The keyboard device of claim 1, wherein the first assembling side is provided with a groove, and the first spring arm structure is located in the groove.

4. The keyboard apparatus of claim 1, further comprising:

the second connecting piece is connected between the key cap and the assembly area and comprises a third assembling side and a fourth assembling side which are opposite to each other, the third assembling side is pivoted on the bottom surface of the key cap, and the fourth assembling side is pivoted on the base plate; and

the second spring arm structure comprises another connecting end and another free end which are opposite to each other, the other connecting end is connected with the third assembling side, and the other free end is propped against the bottom surface of the key cap.

5. The keyboard device of claim 4, wherein a first pivot is disposed between the first and second assembling sides of the first connector, and a second pivot is disposed between the third and fourth assembling sides of the second connector, and the second pivot is pivotally disposed on the first pivot.

6. The keyboard device of claim 1, wherein the free end of the first spring arm structure is provided with a bump, the bump has a curved surface, and the curved surface abuts against the bottom surface of the key cap.

7. The keyboard apparatus of claim 6, wherein the curved surface is a cambered surface or a hemispherical surface.

8. The keyboard device of claim 1, wherein the free end of the first spring arm structure further extends to form an extension arm, and the extension arm abuts against the bottom surface of the keycap.

9. The keyboard apparatus of claim 8, wherein the extension arm is perpendicular to the first spring arm structure.

10. The keyboard apparatus of claim 1, wherein the key cap is capable of being selectively moved between a first height position and a second height position with respect to the base plate, wherein the first spring arm structure has a first tilt angle when the key cap is in the first height position, and wherein the first spring arm structure has a second tilt angle when the key cap is in the second height position, and the second tilt angle is different from the first tilt angle.

11. The keyboard device of claim 1, wherein the first assembling side has a first connecting arm, the number of the first spring arm structures is plural, and the first spring arm structures are respectively adjacent to two opposite ends of the first connecting arm.

12. The keyboard device of claim 1, further comprising a first spring arm member, the first spring arm member comprising a connecting portion and a free portion opposite to each other, the connecting portion being connected to the second assembling side, the free portion being abutted against the top surface of the substrate.

13. A keyboard apparatus, comprising:

a substrate including a top surface having an assembly area;

the key cap is arranged above the assembly area and is provided with a bottom surface facing the assembly area;

the first connecting piece is connected between the key cap and the assembly area and comprises a first assembling side and a second assembling side which are opposite to each other, the first assembling side is pivoted on the bottom surface of the key cap, and the second assembling side is pivoted on the base plate; and

the first elastic arm piece comprises a connecting part and a free part which are opposite to each other, the connecting part is connected with the second assembling side, and the free part is propped against the top surface of the substrate.

14. The keyboard apparatus of claim 13, wherein the connecting portion of the first spring arm is integrally connected to the second assembling side.

15. The keyboard device of claim 13, wherein the second assembling side is provided with a groove, and the first spring arm is located in the groove.

16. The keyboard apparatus of claim 13, further comprising:

the second connecting piece is connected between the key cap and the assembly area and comprises a third assembling side and a fourth assembling side which are opposite to each other, the third assembling side is pivoted on the bottom surface of the key cap, and the fourth assembling side is pivoted on the base plate; and

the second elastic arm piece comprises another connecting part and another free part which are opposite to each other, the other connecting part is connected with the fourth assembling side, and the other free part is propped against the top surface of the substrate.

17. The keyboard device of claim 16, wherein a first pivot is disposed between the first and second assembling sides of the first connector, and a second pivot is disposed between the third and fourth assembling sides of the second connector, and the second pivot is pivotally disposed on the first pivot.

18. The keyboard device according to claim 13, wherein the free portion of the first spring arm has a bump, the bump having a curved surface, the curved surface being abutted against the top surface of the substrate.

19. The keyboard apparatus of claim 13, wherein the key cap is capable of being selectively moved between a first height position and a second height position with respect to the base plate, wherein the first spring arm has a first tilt angle when the key cap is in the first height position, and wherein the first spring arm has a second tilt angle when the key cap is in the second height position, and wherein the second tilt angle is different from the first tilt angle.