CN219435740U - Keyboard with shock attenuation liner structure - Google Patents

Abstract

The utility model discloses a keyboard, which comprises a top cover, a plurality of keys protruding from the upper surface of the top cover, a positioning plate positioned below the top cover, a sandwich pad positioned below the positioning plate, a printed circuit board positioned below the sandwich pad, a bottom pad positioned below the printed circuit board, and a bottom cover positioned below the bottom pad, wherein the positioning plate comprises a plurality of gaskets arranged on the upper surface along the periphery of the positioning plate, the upper surface of the gaskets is abutted against the lower surface of the top cover, and the positioning plate comprises a positioning plate side wall extending downwards along the edge of the positioning plate, and the positioning plate side wall surrounds the sandwich pad.

Description

Keyboard with shock attenuation liner structure

Technical Field

The present utility model relates to computer peripherals. In particular, the present utility model relates to keyboards. More particularly, the present utility model relates to keyboards with shock absorbing pad structures.

Background

With the popularization of computer technology, computer peripherals are also being developed in synchronization. The keyboard is one of the most frequently used computer peripherals. The keyboards commonly found on the market are generally classified into membrane keyboards and mechanical keyboards. The mechanical keyboard uses the mechanical shaft body, the key path of the key is longer, and the excellent hand feeling can be brought to a user. But typical mechanical keyboards produce relatively loud noise when struck. Thus, there is a continuing need in the keyboard art for a vast design to reduce the noise generated by keyboard strokes.

Disclosure of Invention

The utility model aims to solve the technical problem of reducing noise generated during keyboard operation. To this end, the present utility model proposes a keyboard with a shock absorbing pad structure, the keyboard comprising a top cover, a plurality of keys protruding from an upper surface of the top cover, a positioning plate located under the top cover, a sandwich pad located under the positioning plate, a printed circuit board located under the sandwich pad, a bottom pad located under the printed circuit board, and a bottom cover located under the bottom pad, the positioning plate comprising a plurality of pads disposed on an upper surface along a periphery thereof, an upper surface of the pads abutting the top cover, the positioning plate comprising positioning plate side walls extending downward along an edge thereof, the positioning plate side walls surrounding the sandwich pad.

According to one embodiment of the present utility model, the positioning plate includes ribs provided on an upper surface thereof along a periphery thereof in a number corresponding to the pads, the pads include pad grooves at a bottom thereof, and the pad grooves are engaged with the ribs so that the pads are inserted on the ribs.

According to one embodiment of the utility model, the pad comprises a rectangular base and at least one support post arranged on the base.

According to one embodiment of the utility model, the pad comprises 3 equally spaced-apart struts disposed on the base.

According to one embodiment of the utility model, the struts are of equal width to the base.

According to one embodiment of the utility model, the width of the post is smaller than the width of the base.

According to one embodiment of the utility model, the top ends of the struts are corrugated.

According to one embodiment of the utility model, the pad has a rectangular parallelepiped shape.

According to one embodiment of the utility model, the bottom cover comprises a bottom cover side wall extending around its periphery, the top end of which bottom cover side wall directly abuts the sandwich pad.

According to one embodiment of the utility model, the sandwich mat comprises a sandwich mat groove in its lower surface corresponding to the position of the bottom cover side wall, in which sandwich mat groove the top end of the bottom cover side wall fits.

According to one embodiment of the utility model, the bottom cover comprises a locating pin arranged on the inner side of the side wall of the bottom cover, the locating pin protrudes from the upper surface of the bottom cover, the bottom pad comprises a locating cylinder protruding from the upper surface of the bottom pad and corresponding to the locating pin, and the locating cylinder is sleeved on the locating pin.

According to one embodiment of the utility model, the base pad comprises two positioning cylinders provided at opposite corners of the base pad.

According to one embodiment of the utility model, the pad is made of foam, silicone, or thermoplastic elastomer material.

According to one embodiment of the utility model, the sandwich pad is made of foam, silica gel, or a thermoplastic elastomer material.

According to one embodiment of the utility model, the base mat is made of foam, silicone, or thermoplastic elastomer material.

Compared with the prior art, the utility model has obvious beneficial effects. Specifically, the cushion arranged between the top cover and the positioning plate can play a role in buffering and silencing in the up-down direction, and meanwhile, the top cover and the fixing plate are guaranteed not to be in direct rigid contact. The sandwich pad is arranged between the locating plate and the printed circuit board, fills the cavity between the locating plate and the printed circuit board, ensures that the locating plate and the printed circuit board are not in direct rigid contact, and plays a role of buffering keys. The side wall of the bottom cover is contacted with the sandwich backing plate, so that the positioning plate and the printed circuit board are not rigidly contacted with the lower cover. In addition, the bottom pad is arranged between the printed circuit board and the bottom cover and supports the printed circuit board in the space of the bottom cover, thereby further playing a role of buffering and silencing.

Drawings

Fig. 1 is a perspective view of a keyboard according to one embodiment of the present utility model.

Fig. 2 is an exploded perspective view of a keyboard according to one embodiment of the present utility model, particularly illustrating the individual components of the keyboard.

Fig. 3 is a sectional view of a keyboard according to an embodiment of the present utility model, showing the assembly relationship of the respective constituent parts of the keyboard.

Fig. 4 and 5 are enlarged views of the area a indicated by the dotted circle in fig. 3.

Fig. 6 is a partially exploded perspective view of a keyboard according to one embodiment of the present utility model.

Fig. 7A and 7B are perspective views of a gasket according to an embodiment of the present utility model.

Fig. 8 shows a perspective view of a base mat according to one embodiment of the present utility model.

Fig. 9 illustrates a perspective view of a bottom cover according to an embodiment of the present utility model.

Detailed Description

Representative applications of methods and apparatus in accordance with the present application are described in this section. These examples are provided solely to add context and aid in the understanding of the described embodiments. It will be apparent, therefore, to one skilled in the art, that the described embodiments may be practiced without some or all of these specific details. In other instances, well known process steps have not been described in detail in order to not unnecessarily obscure the described embodiments. Other applications are possible, and therefore the following examples should not be taken as limiting.

It should be understood that in the embodiments of the present application, "at least one" means one or more, and "a plurality" means two or more. "and/or" describes an association relationship of an association object, meaning that there may be three relationships, e.g., a and/or B, may represent: a alone, a and B together, and B alone, wherein A, B may be singular or plural. The symbol "/" generally indicates that the context-dependent object is an "or" relationship. The term "at least one" or other similar expressions herein means any combination of these terms, including any combination of single term(s) or plural terms(s). For example, at least one of a, b, or c(s) may represent a; b; c, performing operation; a and b; a and c; b and c; or a, b and c, wherein a, b and c can be single or multiple.

In the following detailed description, reference is made to the accompanying drawings, which form a part hereof, and in which is shown by way of illustration specific embodiments in accordance with the described embodiments. While these embodiments are described in sufficient detail to enable those skilled in the art to practice the described embodiments, it should be understood that these examples are not limiting; accordingly, other embodiments may be utilized and changes may be made without departing from the spirit and scope of the described embodiments.

FIG. 1 is a perspective view of a keyboard 10 according to one embodiment of the present utility model. As shown in fig. 1, keyboard 10 generally includes a top cover 100 and a bottom cover 200 (see fig. 2) that fit together. A plurality of keys 110 protrude from key holes provided on the top cover 100. Each key 110 may be independently pressed to implement an input function of the keyboard.

Fig. 2 is an exploded perspective view of keyboard 10, in particular illustrating the various components of keyboard 10, according to one embodiment of the present utility model. Note that fig. 2 shows an exploded perspective view of the keyboard 10 in a horizontal direction. Thus, in the assembled state of keyboard 10, the front-side components shown in FIG. 2 are located above the rear-side components. As shown in fig. 2, the keyboard 10 includes a top cover 100, a positioning plate 300 under the top cover 100, a sandwich pad 400 under the positioning plate 300, a Printed Circuit Board (PCBA) 500 under the sandwich pad 400, a bottom pad 600 under the printed circuit board 500, and a bottom cover 200 under the bottom pad 600. According to some embodiments of the utility model, keyboard 10 is a generally rectangular assembly. As shown in fig. 2, the top cover 100 has a rectangular frame with a periphery including sides 102. Similarly, bottom cover 200 is correspondingly rectangular in shape, with the perimeter including bottom cover side walls 202. In the assembled state, the top cover 100 and the bottom cover 200 of the keyboard 10 are clamped together, thereby sandwiching the positioning plate 300, the sandwich pad 400, the printed circuit board 500, and the bottom pad 600 between the top cover 100 and the bottom cover 200. In some embodiments, top cover 100 and bottom cover 200 may be further secured together using fasteners (not shown), such as screws. In some embodiments, the top cover 100, the positioning plate 300, and the sandwich pad 400 each include a plurality of key holes through which the keys 110 are disposed such that the key caps 112 of the keys 110 protrude from the key holes of the top cover 100 and the lower portions of the key bodies 114 of the keys 110 are proximate to the upper surface of the printed circuit board 500. When the user's finger hits and depresses the key cap 112, the key body 114 applies downward pressure to the positioning plate 300. After the knocking is completed, the key cap 112 returns to the original position under the action of the elastic member.

According to some embodiments of the present utility model, the upper surface of the positioning plate 300 is provided with a plurality of pads 310 along its periphery. In the assembled state of the keyboard 10, the gasket 310 is interposed between the upper surface of the positioning plate 300 and the lower surface of the top cover 100 to prevent the top cover 100 from being in direct rigid contact with the positioning plate 300. The pad 310 provides cushioning and shock absorbing noise dampening when the user taps the key 110. The specific structure of the gasket 310 will be described in detail below.

Fig. 3 is a cross-sectional view of keyboard 10, showing the assembled relationship of the various components of keyboard 10, according to one embodiment of the present utility model. Specifically, FIG. 3 is a right side cross-sectional view of keyboard 10 in an assembled state. To further improve cushioning and shock absorbing and sound attenuating effects, keyboard 10 includes a sandwich pad 400 between locating plate 300 and printed circuit board 500, according to some embodiments of the present utility model. In some embodiments, the sandwich pad 400 fills the cavity between the locating plate 300 and the printed circuit board 500 and avoids direct rigid contact of the locating plate 300 with the printed circuit board 500. According to some embodiments, the sandwich pad 400 is made of foam, silica gel, thermoplastic elastomer (TPE), and the like, and has better elasticity. In the assembled state of the keyboard 10, the key body 114 of the key 110 passes through the key holes on the positioning plate 300 and the sandwich pad 400 and is supported on the positioning plate 300 (see also fig. 4). When the user presses the key 110, the key body 114 applies downward pressure on the positioning plate 300. The elastic deformation of the sandwich pad 400 can absorb the pressure exerted by the key body 114 on the positioning plate 300, further providing cushioning and shock absorbing and noise damping effects.

As shown in fig. 3, the keyboard 10 includes a bottom pad 600 between the printed circuit board 500 and the bottom cover 200, according to some embodiments. In the assembled state of the keyboard 10, the bottom pad 600 is seated in the frame formed by the bottom cover 200. The printed circuit board 500 is mounted on the base pad 600. Such a design allows the bottom pad 600 to fill the cavity between the printed circuit board 500 and the bottom cover 200 while ensuring that the printed circuit board 500 does not make direct rigid contact with the bottom cover 200. According to some embodiments of the present utility model, the base pad 600 is made of foam, silicone, thermoplastic elastomer (TPE), and the like, and has good elasticity. When the user clicks the key 110, the key body 114 applies downward pressure on the printed circuit board 500 through the positioning plate 300. The elastic deformation of the base pad 600 can absorb the impact force of the key body 114, and further provide buffering and damping.

The structure of some embodiments of the present utility model will be described in detail below with reference to fig. 4 and 5. Fig. 4 and 5 are enlarged views of the area a indicated by the dotted circle in fig. 3. For clarity of illustration, portions of the components of keyboard 10 are shown in cross-section in fig. 4 and 5. As shown in fig. 4, the keyboard 10 includes a spacer 310 interposed between the top cover 100 and the positioning plate 300. According to some embodiments of the utility model, the locating plate 300 includes ribs 304 on its upper surface. The bottom of the spacer 310 is provided with a groove 315 (see fig. 9) so that the spacer 310 is inserted over the rib 304 on the upper surface of the positioning plate 300 and fastened to the rib 304 by interference fit. In some embodiments, keyboard 10 may include a plurality of pads 310. These spacers 310 are placed on the edge portion of the upper surface of the positioning plate 300 along the periphery of the positioning plate 300 so as to avoid key holes formed in the positioning plate 300. In this case, the upper surface of the positioning plate 300 correspondingly includes a plurality of ribs 304, which will be described in detail below with reference to fig. 6.

As shown in fig. 4, the locating plate 300 includes locating plate sidewalls 302 extending from an edge thereof perpendicular to the locating plate 300. According to some embodiments, the length of the spacer side walls 302 is determined such that the lower ends of the spacer side walls 302 do not interfere with the upper ends of the bottom cover 200 in the assembled state of the keyboard 10. Specifically, for lightweight and slim keyboard 10, the length of the spacer side walls 302 is approximately 3-5 millimeters. For a longer key stroke keyboard 10, the length of the spacer side wall 302 is approximately 5-7 mm. As shown in fig. 4, in the assembled state of the keyboard 10, the positioning plate side walls 302 of the positioning plate 300 may surround the sandwich pad 400 under the positioning plate 300, thereby providing a horizontal-direction stopper for the sandwich pad 400, preventing the sandwich pad 400 from sliding in the horizontal direction. According to some embodiments, bottom cover 200 includes bottom cover sidewalls 202 (see also fig. 2) extending around its perimeter. The top end of the bottom cover side wall 202 directly abuts the lower surface of the sandwich mat 400, thereby providing structural support for the sandwich mat 400 and achieving vertical restraint. Further, as shown in fig. 4, in some embodiments, the lower surface of the sandwich pad 400 may include a groove 402 disposed corresponding to the bottom cover sidewall 202 of the bottom cover 200. The top ends of the bottom cover side walls 202 fit into the grooves 402 in the lower surface of the sandwich pad 400, preventing the sandwich pad 400 from sliding in the horizontal direction.

As shown in fig. 5, the keyboard 10 includes a bottom pad 600 disposed between the printed circuit board 500 and the bottom cover 200 according to some embodiments of the present utility model. It should be noted that the cross-sections shown in fig. 4 and 5 are not identical cross-sections for clarity of illustration. According to some embodiments of the present utility model, the bottom cover 200 includes positioning pins 204 provided inside the bottom cover sidewall 202 for mounting and positioning the bottom mat 600 inside the bottom cover 200. The specific location of the locating pin 204 is described below in conjunction with FIG. 9. In these embodiments, the base pad 600 includes a detent cylinder 604 (see also fig. 8) that corresponds to the location of the detent pin 204. According to some embodiments, the positioning cylinder 604 is hollow and cylindrical, protrudes from the upper surface of the base pad 600, and is closed at the top, as shown in fig. 5. In the assembled state of the keyboard 10, the bottom pad 600 is seated in the bottom cover 200 such that the positioning cylinder 604 of the bottom pad 600 is fitted over the positioning pin 204 of the bottom cover 200. The positioning cylinder 604 cooperates with the positioning pins 204 to provide accurate positioning for mounting the base pad 600 while preventing the base pad 600 from sliding horizontally within the bottom cover 200. The present utility model is not limited to the configuration of the positioning cylinder 604. In other embodiments, not shown, the base pad 600 may simply be provided with locating holes. In the process of assembling the keyboard 10, the positioning holes of the bottom pad 600 are sleeved on the positioning pins 204 of the bottom cover 200, and the technical functions of positioning the bottom pad 600 and preventing the bottom pad 600 from sliding can be realized.

The specific location and structure of pad 310 in keyboard 10 according to some embodiments of the present utility model will be further described below in conjunction with fig. 6. Fig. 6 is a partially exploded perspective view of keyboard 10 with top cover 100 and keys 110 removed for clarity of illustration, according to one embodiment of the present utility model. As shown in fig. 6, the positioning plate 300 may include a plurality of pads 310. For example, the positioning plate 300 may include two pads 310 disposed on a short side of the positioning plate 300 and three pads 310 disposed on a long side of the positioning plate 300. In fig. 6, only two pads 310 are provided on the upper edge of the positioning plate 300 in order to fit a special key or indicator on the upper right side of the keyboard 10. In this case, the positioning plate 300 is provided with the ribs 304 corresponding to the number of the pads 310. Each pad 310 is inserted and supported on one rib 304. It should be noted that the present utility model is not limited to the structure shown in fig. 6. In other embodiments, a greater or lesser number of pads 310 may be provided on the positioning plate 300, depending on the structural requirements of the particular keyboard 10. In one embodiment, the spacer 310 may take on a simple rectangular parallelepiped shape, as shown by the spacer 310 disposed on the short side of the positioning plate 300 in fig. 6. In another embodiment, the spacer 310 may have a specific structure, as shown in fig. 6 as the spacer 310 disposed on the long side of the positioning plate 300. Those skilled in the art will appreciate that various lengths and widths of the pad 310 are within the contemplation of the present utility model. For example, in one embodiment, the pad 310 may have a length of 20-100 millimeters, a width of 2-8 millimeters, and a height of 1-6 millimeters. A specific structure of the gasket 310 is further described below with reference to fig. 7.

Fig. 7A is a perspective view of a gasket 310 according to an embodiment of the present utility model, showing the gasket 310 from obliquely above. As shown in fig. 7A, in one embodiment, the pad 310 includes a generally rectangular base 312 and a post 314 disposed on the base 312. In one embodiment, the struts 314 are generally cylindrical with the top configured as a corrugated structure. According to some embodiments of the present utility model, a gasket 310 is disposed between the top cover 100 and the positioning plate 300. In this case, the top ends of the support posts 314 contact the top cover 100. The corrugated structure at the top of the struts 314 may act as a slip-resistant function. In one embodiment, 3 struts 314 may be provided on the base 312 equally spaced apart. The present utility model is not limited to this case. In other embodiments, 2 or 4 struts 314 may be provided on the base 312, depending on the length of the pad 310. While in other embodiments, only one post 314 may be provided on the base 312. In general terms, a pad 310 according to an embodiment of the present utility model may include at least one post 314 disposed on a base 312. In some embodiments, the diameter of the struts 314 may be equal to the width of the base 312. While in other embodiments, the diameter of the struts 314 may be smaller than the width of the base 312, such as in the case shown in fig. 7A and 5.

Fig. 7B is a perspective view of a gasket 310 according to an embodiment of the present utility model, showing the gasket 310 from below. As shown in fig. 7B, the gasket 310 includes a groove 315 at its bottom. When the gasket 310 is assembled to the locating plate 300, the groove 315 fits over the rib 304 on the locating plate 300, and is secured to the rib 304 by an interference fit to prevent removal. In the embodiment shown in fig. 7B, the recess 315 includes three uniformly spaced cylindrical holes. The three cylindrical holes are connected through holes with round-corner rectangular cross sections. Accordingly, the profile of the ribs 304 on the positioning plate 300 may also be configured to correspond to the shape. Such a design can enhance the bonding strength between the groove 315 and the rib 304 and prevent falling off.

Fig. 8 illustrates a perspective view of a base mat 600 according to one embodiment of the present utility model. As shown in fig. 8, and referring to the foregoing, the base mat 600 has a substantially rectangular plate shape and is made of foam, silicone, thermoplastic elastomer (TPE), or the like, and has good elasticity. In one embodiment, the cross section of base 600 is trapezoidal, i.e., the side of base 600 corresponding to the upper side of keyboard 10 is thicker and the side corresponding to the lower side of keyboard 10 is thinner. Such a design conforms to the operating habits of the user. As shown in fig. 8, in the assembled state of keyboard 10, base pad 600 includes a positioning cylinder 604 protruding from its upper surface. According to one embodiment, the base pad 600 may include two positioning cylinders 604 diagonally disposed at the corners of the base pad 600. The present utility model is not limited to the case where the base pad 600 includes two positioning cylinders 604. More positioning cylinders 604 may be included on the base 600, depending on the particular construction needs of the keyboard 60. For example, in another embodiment, the base pad 600 may include 4 positioning cylinders 604, respectively disposed at 4 corners of the rectangular base pad 600, to further enhance the positioning and anti-slip technical effect. In addition, as shown in fig. 8, the base pad 600 may further include a plurality of support pads 606 dispersedly disposed on the upper surface of the base pad 600. These support pads 606 are generally short cylindrical. In the assembled state of the keyboard 60, the support pad 606 may support the printed circuit board 500 (see fig. 2) seated on the base pad 600, thus providing a space between the printed circuit board 500 and the base pad 600, facilitating heat dissipation of the printed circuit board 500.

Fig. 9 is a perspective view of a bottom cover 200 according to an embodiment of the present utility model. As shown in fig. 9, the bottom cover 200 includes a positioning pin 204. According to some embodiments, the bottom cover 200 may include 2 positioning pins 204, respectively disposed at opposite corners of the bottom cover 200. Referring to the above description with reference to fig. 8, in a state where the bottom chassis 600 is seated in the bottom cover 200, the positioning cylinder 604 cooperates with the positioning pins 204 to provide accurate positioning of the bottom chassis 600 while preventing the bottom chassis 600 from sliding horizontally in the bottom cover 200. Also, more alignment pins 204 may be included on the bottom cover 200 depending on the particular construction of the keyboard 60. For example, in another embodiment, the bottom cover 200 may include 4 positioning pins 204 provided at 4 corners of the rectangular bottom cover 200, respectively, to further enhance the technical effects of positioning and anti-slip.

The foregoing description, for purposes of explanation, used specific nomenclature to provide a thorough understanding of the described embodiments. However, it will be apparent to one skilled in the art that the specific details are not required in order to practice the described embodiments. Thus, the foregoing descriptions of specific embodiments are presented for purposes of illustration and description. The foregoing description of specific embodiments is not intended to be exhaustive or to limit the described embodiments to the precise form disclosed. It will be apparent to those skilled in the art that many modifications and variations are possible in light of the above teachings.

Claims (15)

1. A keyboard with shock absorbing pad structure, characterized in that the keyboard comprises a top cover, a plurality of keys protruding from the top cover upper surface, a positioning plate located below the top cover, a sandwich pad located below the positioning plate, a printed circuit board located below the sandwich pad, a bottom pad located below the printed circuit board, and a bottom cover located below the bottom pad, the positioning plate comprises a plurality of pads disposed on its upper surface along its periphery, the upper surfaces of the plurality of pads abut against the lower surface of the top cover, the positioning plate comprises a positioning plate side wall extending downward along its edge, and the positioning plate side wall encloses the sandwich pad.

2. The keyboard with shock absorbing pad structure of claim 1, wherein the positioning plate includes a plurality of ribs disposed on an upper surface thereof along a periphery thereof and corresponding in number to the pads, each of the plurality of pads including a pad recess at a bottom thereof, the pad recess cooperating with the ribs such that the plurality of pads are interposed on the plurality of ribs.

3. The keyboard with shock absorbing pad structure of claim 2, wherein each of the plurality of pads comprises a rectangular base and at least one post disposed on the base.

4. The keyboard with shock absorbing pad structure of claim 3, wherein each of the plurality of pads comprises 3 equally spaced apart posts disposed on the base.

5. A keyboard with shock absorbing pad structure as claimed in claim 3, wherein the diameter of the post is equal to the width of the base.

6. A keyboard with shock absorbing pad structure as claimed in claim 3, wherein the diameter of the post is less than the width of the base.

7. A keyboard with shock absorbing pad structure as claimed in claim 3, wherein the top ends of the struts are corrugated.

8. The keyboard with shock absorbing pad structure of claim 2, wherein the pad has a rectangular parallelepiped shape.

9. The keyboard with shock absorbing pad structure of claim 1, wherein the bottom cover includes a bottom cover sidewall extending upwardly around its perimeter, the top end of the bottom cover sidewall directly abutting the sandwich pad.

10. The keyboard with shock absorbing pad structure of claim 9, wherein the sandwich pad includes a sandwich pad groove on a lower surface thereof corresponding to a position of the bottom cover side wall, the top end of the bottom cover side wall being fitted in the sandwich pad groove.

11. The keyboard with shock absorbing pad structure of claim 9, wherein the bottom cover includes a positioning pin provided inside a side wall of the bottom cover, the positioning pin protruding from an upper surface of the bottom cover, the bottom pad including a positioning cylinder protruding from an upper surface thereof and positioned corresponding to the positioning pin, the positioning cylinder being fitted over the positioning pin.

12. The keyboard with shock absorbing pad structure of claim 11, wherein the base pad comprises two positioning cylinders disposed at opposite corners of the base pad.

13. The keyboard with shock absorbing pad structure of claim 1, wherein the pad is made of foam, silicone, or thermoplastic elastomer material.

14. The keyboard with shock absorbing pad structure of claim 1, wherein the sandwich pad is made of foam, silicone, or thermoplastic elastomer material.

15. The keyboard with shock absorbing pad structure of claim 1, wherein the base pad is made of foam, silicone, or thermoplastic elastomer material.