CN218548287U - Mechanical keyboard - Google Patents

Abstract

The utility model provides a mechanical keyboard, including drain pan, five metals panel, FPCB board, mechanical axis and key cap. The hardware panel is arranged to the top end of the bottom shell and forms a relatively closed space with the bottom shell; the FPCB plate is arranged in the space; the mechanical shaft comprises a mechanical shaft main body and a contact pin, the mechanical shaft main body penetrates through a corresponding hole position on the hardware panel and is fixed to the hardware panel, the top end of the mechanical shaft main body is located above the hardware panel, the bottom end of the mechanical shaft main body extends into the space, and the contact pin arranged at the bottom end of the mechanical shaft main body is electrically connected with a circuit on the FPCB board; the keycap is detachably coupled to the top end of the mechanical axle body. According to the utility model provides a mechanical keyboard, because it replaces current PCB hardboard with the FPCB board, can reduce mechanical keyboard's thickness and weight.

Description

Mechanical keyboard

Technical Field

The utility model relates to a mechanical keyboard field, concretely relates to mechanical keyboard.

Background

The keyboard is an instruction and data input device for operating computer equipment, and can input English letters, chinese characters, numbers, punctuations and the like into the computer through the keyboard, so as to send commands, input data and the like to the computer.

The keyboard can be divided into the following parts according to the working principle:

1. the Mechanical keyboard (Mechanical) adopts a similar metal contact switch, the working principle is to make the contact be connected or disconnected, and the Mechanical keyboard has the characteristics of simple process, high noise, easy maintenance, strong rhythm feeling during typing, unchangeable hand feeling after long-term use and the like.

2. The plastic film type keyboard (Membrane) is divided into four layers in the keyboard, so that no mechanical abrasion is caused. The novel leather has the characteristics of low price, low noise and low cost, but the hand feeling can be changed due to the problem of material after long-term use. Has occupied most of the market.

3. The structure of the Conductive Rubber type keyboard (Conductive Rubber) contact is connected through Conductive Rubber. A layer of conductive rubber with electric protrusions is arranged inside the keyboard, each key corresponds to one protrusion, and when the key is pressed down, the lower contact is connected. This type of keyboard is a product that is a transition from mechanical keyboards to membrane keyboards in the market.

4. Contactless electrostatic capacitance keyboards (Capacitives) use a principle similar to a capacitive switch, and drive an encoder by changing the capacitance by changing the distance between electrodes when a key is pressed. It features no abrasion and better sealing performance.

In terms of structure, each key of the mechanical keyboard has a separate switch to control the closing, and this switch is also called "axis". Mechanical keyboards can be classified into conventional tea, cyan, white, black, red and Romer-G and optic axes, according to the classification of the micro-switches. Each key is composed of an independent microswitch, so that the key has strong sectional feeling, generates special hand feeling suitable for game entertainment, and is usually used as expensive high-end game peripheral equipment.

Advantages of mechanical keyboards over membrane keyboards include: 1. the mechanical keyboard has longer service life than the common membrane keyboard, and the service life of the good mechanical keyboard is more than 10 years and even more than 20 years; 2. after the mechanical keyboard is used for a long time, the hand feeling of the keys is changed very little, but the thin-film keyboard cannot reach the hand feeling; 3. the mechanical keyboard has different key hand feelings of different axes, and the film keyboard has single touch feeling; 4. the mechanical keyboard can be free of conflict among more than 6 keys, part of the mechanical keyboard can be free of conflict among all keys, and fewer film keyboards with conflict among more than 6 keys are available; 5. can oneself change the key cap, make things convenient for individual character DIY. But also has obvious defects, generally higher selling price and poor waterproof and dustproof capabilities.

In realizing the utility model discloses the in-process, utility model people discover to have following problem among the prior art at least:

fig. 1 is an exploded view of a conventional mechanical keyboard. In the figures, the various reference numbers: 10-mechanical keyboard, 11-keycap, 12-mechanical shaft, 13-hardware panel, 14-PCB hard board, and 15-bottom shell. Wherein, the five metals panel is fixed in on the drain pan and both form an installation space, and the rigid PCB board is fixed in this installation space. Each mechanical shaft is arranged in a hole position corresponding to the hardware panel, and a contact pin at the bottom of each mechanical shaft is electrically connected with a circuit on the PCB hard board. People can make the metal contact piece in the mechanical axis contact or break away from through pressing the key cap to realize that the circuit of mechanical axis and PCB hardboard switches on or breaks off. However, at present, because the PCB is adopted, and the PCB is thick and heavy, the whole mechanical keyboard is finally thick and heavy, and the cost of the PCB is high, which results in high production cost of the mechanical keyboard.

There is therefore a need for a mechanical keyboard that at least partially solves the above technical problem.

SUMMERY OF THE UTILITY MODEL

In order to solve at least one of the above technical problems, an embodiment of the present invention provides a mechanical keyboard, which can reduce thickness and weight.

In a particular embodiment according to the present invention, a mechanical keyboard comprises:

a bottom case; the hardware panel is arranged at the top end of the bottom shell and forms a relatively closed space with the bottom shell; an FPCB plate disposed into the space; the mechanical shaft comprises a mechanical shaft main body and contact pins, the mechanical shaft main body penetrates through corresponding hole positions on the hardware panel and is fixed to the hardware panel, the top end of the mechanical shaft main body is located above the hardware panel, the bottom end of the mechanical shaft main body extends into the space, and the contact pins arranged at the bottom end of the mechanical shaft main body are electrically connected with a circuit on the FPCB board; and a key cap detachably coupled to a top end of the mechanical shaft body.

According to the utility model discloses a mechanical keyboard, wherein important improvement structure-FPCB Board, be called totally Flexible Printed Circuit Board, FPCB Board or FPC Board for short, is Flexible Printed Circuit Board. The FPCB board is a printed circuit board with patterns, which is made of flexible base materials, has the characteristics of continuous automatic production, light weight, small volume, small thickness, flexibility, elastically changeable shape and the like, and is widely applied to the fields of military industry, national defense and consumer electronics. The mechanical keyboard of the utility model replaces the existing PCB hard board with the FPCB board under the condition that other structures are not changed with the existing mechanical keyboard, thus reducing the thickness and weight of the mechanical keyboard; in addition, the production cost can be reduced.

Optionally, the hardware panel and the bottom case are configured to be detachably connected. Therefore, the mechanical keyboard can realize the effect of convenient disassembly and assembly and is convenient to maintain.

Optionally, be provided with vertical threaded connection post in the space, the FPCB board have with the via hole that the threaded connection post corresponds, the five metals panel with pass from top to bottom through the screw between the drain pan the five metals panel and with the threaded connection post spiro union is realized fixedly, the five metals panel have with the via hole that the screw corresponds.

Optionally, the border of drain pan is provided with vertical screw perforation, the bottom surface of five metals panel have with the screw hole that the screw perforation corresponds, the five metals panel with pass from bottom to top through the screw between the drain pan and with the five metals panel bottom surface the screw hole spiro union is realized fixedly.

Optionally, the mechanical keyboard further comprises a key-shaped frame, and the frame is arranged on the top edge of the hardware panel and surrounds the mechanical shaft and the key cap. Through the frame of above-mentioned design, can prevent that the keyboard button (promptly mechanical axle and key cap etc.) in the outermost side from being bumped by mistake to can be through grabbing the frame or knocking the frame when some circumstances (for example overturn mechanical keyboard and go on shaking off the dust) operate mechanical keyboard, in order to protect the keyboard button in the outermost side.

Optionally, the border of drain pan with the five metals panel is provided with the screw hole of vertical alignment, the bottom surface of frame have with the screw hole that the screw hole corresponds, the drain pan the five metals panel with pass from bottom to top through the screw between the frame the drain pan with behind the five metals panel with the screw hole spiro union is realized fixedly.

Optionally, a vertical threaded through hole is formed in the edge of the bottom case, the hardware panel is provided with an unthreaded hole aligned with the threaded through hole, the bottom surface of the frame is provided with a threaded hole corresponding to the threaded through hole, and the top surface of the edge of the bottom case and the bottom surface of the frame are respectively provided with a containing cavity for filling an elastic pad; the drain pan the five metals panel with pass from down to up through the screw between the frame the drain pan with behind the five metals panel with the frame bottom surface screw hole spiro union is realized fixedly, just the five metals panel only with the border top surface of drain pan with the bottom surface of frame hold the intracavity the cushion contact.

Optionally, the resilient pad is a rubber pad.

Optionally, still be provided with in the space and be used for the restriction FPCB board is at the horizontal direction removal's spacing post, the FPCB board have with spacing post corresponds the perforation of matcing.

Through utilizing according to the utility model discloses technical scheme, the beneficial effect that can obtain lies in at least:

1. compared with the existing mechanical keyboard, the mechanical keyboard of the utility model uses the FPCB board to replace the existing PCB hard board, which can reduce the thickness and weight of the mechanical keyboard and can also reduce the production cost;

2. the protection of the outermost keyboard keys is realized by designing a frame surrounding the mechanical shaft and the keycaps;

3. through the design of various detachable connection modes between the hardware panel and the bottom shell, the effects of simple structure, convenience in processing, better vibration suppression or uniform hand feeling can be realized.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.

It will be appreciated by those skilled in the art that the objects and advantages that can be achieved with the present invention are not limited to what has been particularly described hereinabove, and that the above and other objects that can be achieved with the present invention will be more clearly understood from the following detailed description.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the invention. For purposes of illustrating and describing certain portions of the present invention, corresponding parts may be exaggerated in the drawings, i.e., may be larger relative to other components in an exemplary device actually made according to the present invention. Wherein:

FIG. 1 is an exploded view of a conventional mechanical keyboard;

fig. 2 is an exploded schematic view of a mechanical keyboard according to an embodiment of the present invention;

FIG. 3 is a schematic illustration of the internal connections of the mechanical keyboard of FIG. 2 (keycap not shown);

FIG. 4 is a schematic view of the internal connection of a mechanical keyboard according to another embodiment of the present invention;

FIG. 5 is a schematic view of the internal connection of a mechanical keyboard according to another embodiment of the present invention;

FIG. 6 is a schematic view of the internal connection of a mechanical keyboard according to another embodiment of the present invention;

description of reference numerals:

mechanical keyboard: 10. 110, 210, 310, 410;

the key cap: 11. 111;

a mechanical shaft: 12. 112, 212, 312, 412;

a machine shaft main body: 1121;

inserting a pin: 1122;

hardware panel: 13. 113, 213, 313, 413;

hard PCB (printed circuit board): 14;

FPCB board: 114. 214, 314, 414;

a bottom shell: 15. 115, 215, 315, 415;

connecting a column by screw threads: 116;

screw: 117. 217, 317, 417;

frame: 318. 418;

an elastic pad: 419;

a limiting column: 120. 220, 320, 420;

space: 130. 230, 330, 430.

Detailed Description

The objects and functions of the present invention and methods for accomplishing the same will be apparent from the following description of exemplary embodiments. However, the present invention is not limited to the exemplary embodiments disclosed below; it can be implemented in different forms. The nature of the description is merely to assist those skilled in the relevant art in a comprehensive understanding of the specific details of the invention.

It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

Ordinal words such as "first" and "second" are referred to in the present application only as labels, and do not have any other meanings, such as a specific order or the like. Also, for example, the term "first component" does not itself imply the presence of "second component", and the term "second component" does not itself imply the presence of "first component".

It is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", and the like are used herein for purposes of illustration only and are not limiting.

The mechanical keyboard according to the present invention will be described in detail with reference to the accompanying drawings. The mechanical keyboard is used for operating a command and data input device operated by the computer equipment. The mechanical keyboard has the advantages of small thickness and light weight, and also has the advantages of long service life, small change of key hand feeling, different key hand feeling of different axes and strong typing rhythm of the existing mechanical keyboard.

First embodiment

Fig. 2 and 3 show a mechanical keyboard 110 according to a first embodiment of the present invention. The mechanical keyboard 110 may include a bottom case 115, a hardware panel 113, a FPCB plate 114, a mechanical shaft 112, and a keycap 111. The bottom case 115 may be a rectangular parallelepiped case structure with an open top. The hardware panel 113 is disposed on the top of the bottom case 115, and forms a relatively closed space 130 with the bottom case, wherein the surface of the hardware panel can be plated or painted to protect the surface. The FPCB plate 114, which is a flexible printed circuit board having flexibility and elastically changeable shape characteristics, is disposed into the space 130, and preferably, a single layer FPCB plate, the thickness of which may be as small as 0.1mm, is used. The mechanical shaft 112 includes a mechanical shaft body 1121 and a pin 1122. The mechanical shaft body 1121 penetrates through a corresponding hole position on the hardware panel and is fixed to the hardware panel. The top end of the mechanical shaft main body is positioned above the hardware panel. The bottom end of the machine shaft main body extends into the space. The contact pins arranged at the bottom end of the mechanical shaft main body are electrically connected with the circuit on the FPCB board, for example, the electrical connection can adopt a conventional welding fixing mode. The key cap is detachably connected to the top end of the mechanical shaft main body, wherein the detachable connection manner is not particularly limited, and a common existing connection structure, such as a slot and a snap strip, can be adopted.

According to the mechanical keyboard of this embodiment, compare with current mechanical keyboard, it replaces current PCB hardboard with the FPCB board, utilizes the thin, the light in weight characteristics of FPCB thickness, can reduce mechanical keyboard's thickness and weight, especially in the aspect of the thickness, its thickness can obtain great compression, and the integrated configuration thickness after hardware panel and drain pan are connected fixedly can reach 12mm for example. In addition, due to the advantages of environmental protection, continuous automatic production and the like, the whole production flow is integrated, and the production cost can be reduced.

Preferably, in order to facilitate the disassembly and assembly and maintenance convenience of the mechanical keyboard, the hardware panel and the bottom shell can adopt a detachable connection mode. The following is a detailed description of a possible detachable connection structure using schematic diagrams, which are only for convenience of describing the embodiment and should not be taken as a limitation of the present invention.

Referring to fig. 3 in conjunction with fig. 2, fig. 3 is a schematic diagram illustrating an internal connection of the mechanical keyboard shown in fig. 2 (without a keycap). Specifically, the space 130 is provided with vertical threaded connection posts 116, wherein the specific distribution and number of the threaded connection posts are not limited. The FPCB plate 114 has a via hole corresponding to the threaded connection post so that the threaded connection post passes through the FPCB plate. Pass the five metals panel from top to bottom and realize fixing with the threaded connection post spiro union through screw 117 between five metals panel and the drain pan, corresponding five metals panel has the via hole that corresponds with the screw, and wherein the via hole can adopt the counter bore to the nut invagination of screw is in the counter bore, makes the surface of five metals panel seem more level and more smooth. The detachable connecting structure is very simple in structure and wide in application.

Referring to fig. 3, in a further step, the surface of the bottom case 115 in the space 130 is further provided with a limiting post 120 for limiting the movement of the FPCB plate 114 in the horizontal direction, wherein the number and shape of the limiting posts are not limited, for example, a circular column may be adopted. The FPCB plate is provided with a through hole correspondingly matched with the limiting column so as to lead the limiting column to penetrate through the FPCB plate.

Second embodiment

Unlike the first embodiment, the mechanical keyboard 210 of the present embodiment employs a different detachable connection structure between the hardware panel 213 and the bottom case 215. Of course, other configurations of the mechanical keyboard 210 in the present embodiment are the same as those in the first embodiment. For example, mechanical keyboard 210 may include a bottom shell 215, a hardware panel 213, a FPCB plate 214, a mechanical spindle 212, and a keycap. The surface of the bottom chassis 215 in the space 230 may be provided with a stopper 220 to limit the horizontal movement of the FPCB plate. Wherein the contents of the bottom case, the hardware panel, the FPCB plate, the specific connection manner between the mechanical shaft and the key cap, etc. will not be further described, and reference can be made to the related contents of the first embodiment.

Referring to fig. 4, fig. 4 is a schematic view illustrating an internal connection of a mechanical keyboard according to the present embodiment (not shown with a key cap). Specifically, the edge of the bottom case 215 is provided with a vertical threaded through hole, which is a through hole having a threaded inner surface. The bottom surface of the hardware panel 213 has a threaded hole corresponding to the threaded through hole, and the threaded hole may be a through hole or a blind hole, and preferably a blind hole. The hardware panel 213 and the bottom shell 215 are fixed by passing through the bottom shell 215 from bottom to top through a screw 217 and screwing with a threaded hole on the bottom surface of the hardware panel, wherein the bottom surface of the bottom shell may also be provided with a counter bore for accommodating a nut of the screw.

Adopt the detachable connection structure among this embodiment, because the five metals panel is not fixed on the cylinder, but is connected with the border of drain pan to make the five metals panel obtain more and more even rigid structure supports, and above-mentioned detachable connection structure is convenient processing relatively.

Third embodiment

Different from the first embodiment, the mechanical keyboard 310 of the present embodiment adopts another different detachable connection structure between the hardware panel 313 and the bottom casing 315. Similarly, the other configurations of the mechanical keyboard 310 in the present embodiment are the same as those in the first embodiment. For example, mechanical keyboard 310 may include a bottom shell 315, a hardware panel 313, a FPCB plate 314, a mechanical spindle 312, and a keycap. The surface of the bottom chassis 315 in the space 330 may be provided with a stopper 320 for limiting the horizontal movement of the FPCB plate.

Referring to fig. 5, fig. 5 is a schematic view illustrating an internal connection of a mechanical keyboard according to the present embodiment (not shown with a key cap). In particular, the mechanical keyboard 310 may also include a bite-type border 318. Bezel 318 is provided to the top edge of the hardware panel and surrounds the mechanical axis and keycaps. The border of drain pan and five metals panel are provided with the screw thread perforation of vertical alignment. The bottom surface of the frame is provided with a threaded hole corresponding to the threaded through hole. The bottom shell 315, the hardware panel 313 and the frame 318 are fixed by screws 317 which pass through the bottom shell and the hardware panel from bottom to top and then are screwed with threaded holes on the bottom surface of the frame.

Adopt the detachable connection structure among this embodiment, on the one hand owing to increased frame 318, can realize the protection to the keyboard button in the outside, on the other hand, owing to the five metals panel is connected to drain pan border and frame simultaneously, the five metals panel receives the clamp of drain pan and frame simultaneously promptly, can restrain the vibration better.

Fourth embodiment

Different from the third embodiment, in the mechanical keyboard 410 of the present embodiment, the elastic pad 419 is further disposed at the edge of the bezel 418 and the bottom case 415, and accordingly, the detachable connection structure between the hardware panel and the bottom case is partially modified. The other structure of the mechanical keyboard in the present embodiment is the same as that of the third embodiment. For example, mechanical keyboard 410 may include a bottom housing 415, a hardware faceplate 413, a FPCB plate 414, a mechanical hinge 412, and a keycap. The surface of the bottom case 415 in the space 430 may be provided with a stopper 420 for limiting the horizontal movement of the FPCB plate.

Referring to fig. 6, fig. 6 is a schematic view illustrating an internal connection of a mechanical keyboard according to the present embodiment (not shown with a key cap). Specifically, the rim of the bottom case 415 is provided with vertical threaded perforations. The hardware panel 413 is provided with a light hole aligned with the threaded through hole, where the light hole is a smooth through hole. The bottom surface of the rim 418 has a threaded hole corresponding to the threaded through hole. The top surface of the edge of the bottom shell and the bottom surface of the frame are respectively provided with a containing cavity filled with an elastic pad 419. The bottom shell, the hardware panel and the frame are fixed by screwing bolts 417 which penetrate through the bottom shell and the hardware panel from bottom to top and then are screwed with threaded holes in the bottom surface of the frame, and the hardware panel 413 is only contacted with the elastic pad 419 in the accommodating cavity on the top surface of the edge of the bottom shell 415 and the bottom surface of the frame 418. Wherein, for the reinforcing effect, hold the chamber and preferentially adopt the cyclic annular appearance chamber that extends along the border top surface of drain pan and the bottom surface of frame. The elastic pad can adopt a rubber pad. When the bottom shell, the hardware panel and the frame are fixed through the screws, the elastic pad slightly protrudes out of the top surface of the edge of the bottom shell and the bottom surface of the frame, so that the upper end surface and the lower end surface of the hardware panel are in contact with the elastic pad.

By adopting the detachable connection structure in the embodiment, the screw 417 is only connected in series with the frame 418 and the bottom shell 415, the hardware panel 413 does not have a rigid structure and is supported by the screw, and the hardware panel is clamped by the bottom shell 415, the frame 418 and the elastic pad 419, so that the mechanical keyboard has a very uniform hand feeling. And because the elastic cushion is clamped and fixed, the hardware panel can be buffered in the upper and lower vertical directions, so that a warmer hand feeling is provided for the mechanical keyboard.

Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

Claims (10)

1. A mechanical keyboard, comprising:

a bottom case;

the hardware panel is arranged at the top end of the bottom shell and forms a relatively closed space with the bottom shell;

an FPCB plate disposed into the space;

the mechanical shaft comprises a mechanical shaft main body and a contact pin, the mechanical shaft main body penetrates through a corresponding hole position on the hardware panel and is fixed to the hardware panel, the top end of the mechanical shaft main body is located above the hardware panel, the bottom end of the mechanical shaft main body extends into the space, and the contact pin arranged at the bottom end of the mechanical shaft main body is electrically connected with a circuit on the FPCB board; and

a keycap removably coupled to a top end of the mechanical axle body.

2. The mechanical keyboard of claim 1, wherein the hardware panel and the bottom case are configured to be removably connected.

3. The mechanical keyboard of claim 2, wherein a vertical threaded connection column is arranged in the space, the FPCB plate has a via hole corresponding to the threaded connection column, the hardware panel passes through a screw from top to bottom between the hardware panel and the bottom casing, the hardware panel is fixed by screwing the threaded connection column, and the hardware panel has a via hole corresponding to the screw.

4. The mechanical keyboard of claim 2, wherein the edge of the bottom case is provided with vertical threaded holes, the bottom surface of the hardware panel has threaded holes corresponding to the threaded holes, the hardware panel and the bottom case are fixed by passing through screws from bottom to top through the bottom case and the threaded holes in the bottom surface of the hardware panel.

5. The mechanical keyboard according to claim 1 or 2, further comprising a rectangular border disposed to a top edge of the hardware panel and surrounding the mechanical axis and the keycap.

6. The mechanical keyboard of claim 5, wherein the edge of the bottom case and the hardware panel are provided with vertically aligned threaded holes, the bottom surface of the frame has threaded holes corresponding to the threaded holes, and the bottom case, the hardware panel and the frame are fixed by passing through screws from bottom to top behind the bottom case and the hardware panel with the threaded holes in the bottom surface of the frame in a screwed manner.

7. The mechanical keyboard according to claim 5, wherein the edge of the bottom casing is provided with vertical threaded through holes, the hardware panel is provided with light holes aligned with the threaded through holes, the bottom surface of the frame is provided with threaded holes corresponding to the threaded through holes, and the top surface of the edge of the bottom casing and the bottom surface of the frame are respectively provided with cavities for filling elastic pads; the drain pan the hardware panel with pass from down to up through the screw between the frame the drain pan with behind the hardware panel with the frame bottom surface screw hole spiro union is realized fixedly, just the hardware panel only follows the border top surface of drain pan with the bottom surface of frame hold the intracavity the cushion contact.

8. The mechanical keyboard of claim 7, wherein the resilient pad is a rubber pad.

9. The mechanical keyboard of claim 1, wherein a position-limiting column is further disposed in the space for limiting the movement of the FPCB plate in the horizontal direction, and the FPCB plate has a through hole correspondingly matched with the position-limiting column.

10. The mechanical keyboard of claim 1, wherein the thickness of the combination structure of the hardware panel and the bottom case after being connected and fixed is 12mm.

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