CN205943873U

CN205943873U - Keyboard structure

Info

Publication number: CN205943873U
Application number: CN201620796657.8U
Authority: CN
Inventors: 李冠融
Original assignee: Sunrex Technology Corp
Current assignee: Sunrex Technology Corp
Priority date: 2016-07-27
Filing date: 2016-07-27
Publication date: 2017-02-08
Anticipated expiration: 2026-07-27

Abstract

The utility model discloses a keyboard structure, it is formed by a plurality of key caps, a plurality of key base, a film circuit board, a metal soleplate and key disk substrate seat equipment, this key cap bottom surface is the protruding tip of leading that is equipped with a cavity rectangle down, and should lead the tip is formed with one meter word form in the bottom surface along axis downwardly extending the projection of pulling that supports, this key base is to cassette that should the key cap matched stack, and the shaping is equipped with a rectangular cylindrical shape's trepanning on this key base for the tip cover rank of leading that provides this key cap is inserted and is established, and effective area of contact who makes between the two reduces, and then reduces its relative frictional force, organizing in this film circuit board top surface and being equipped with a plurality of elastic component, should lead setting up in this elastic component's top surface to corresponding cooperation of projection of pulling of the tip, the hair that can avoid the enclosed construction to cause is inhaled and is stained with glutinous phenomenon, improves it and operates smooth and easy nature.

Description

Keyboard structure

Technical Field

The present invention relates to a keyboard structure, and more particularly to a keyboard structure for a computer, which is used to improve the smoothness of pressing key caps.

Background

At present, because the computer has the functions of conveniently processing document data and real-time communication, etc., it is widely acknowledged and adopted by market owners and users, and the operation and execution of the computer are realized by using the input of a keyboard, so the applicant develops and applies for approval to have: taiwan patent' keyboard structure for notebook computer (patent publication No. 224746), relating to computer keyboard, is mainly characterized in that a hollow guide pin with a cross-section in the shape of a quincunx ring is protruded from the bottom of a key cover, two sides of the guide pin are respectively provided with a column foot, and the bottoms of the two column feet are oppositely and outwardly provided with a hook; the top surface of the fixing plate is convexly provided with a plurality of arranged clamping seats, a round hole is formed in each clamping seat in the axial direction for the guide pin to be inserted in a matching way, and the two sides of the round hole are respectively provided with a clamping groove for the column base to be inserted and matched with the column base at the two sides of the guide pin in a hooking and buckling way; in addition, the conductive rubber body is arranged on the bottom surface of the fixed plate, a plurality of elastic parts are convexly arranged on the surface of the conductive rubber body and correspondingly arranged in each clamping seat of the fixed plate, so that the bottom of the guide pin of the key cover is directly contacted with the top of the guide pin. However, the prior art has 8 linear contacts between the guide pin and the circular hole, and the prior art has the disadvantage of excessive contact friction, which causes the disadvantages of unsmooth pressing operation and easy generation of noise, thereby causing inconvenience in use and operation.

SUMMERY OF THE UTILITY MODEL

The utility model provides a keyboard structure, it is to solving to the too much shortcoming of keyboard internal contact frictional force among the prior art, and actually causes to press the shortcoming scheduling problem point that the operation is not smooth and easily produce the noise, and develops and improves the breakthrough.

In order to solve the above technical problem, the present invention discloses a keyboard structure, which is assembled by a plurality of keycaps, a plurality of key seats, a thin film circuit board, a metal bottom plate and a keyboard base; the key cap is a pressing component which is approximately square, a hollow rectangular guide pin is convexly arranged on the bottom surface of the key cap downwards, two opposite side edges of the guide pin are respectively provided with a clamping hook in a splitting mode, the guide pin extends downwards along a central axis on the bottom surface to form a cross-shaped abutting convex column, and the abutting convex column is correspondingly arranged at the central position in the guide pin; the key seat is a clamping seat matched with the key cap, a rectangular columnar sleeve hole is formed in the key seat and used for inserting the guide pin sleeve of the key cap, and two opposite side edges of the sleeve hole are respectively provided with a clamping groove so that the clamping hook of the key cap is correspondingly embedded and buckled; the thin film circuit board is a rectangular sheet-shaped character key press conduction plate which is assembled between the key seat and the metal bottom plate, a plurality of elastic components are assembled on the top surface of the thin film circuit board, and the abutting convex columns of the guide pins are correspondingly matched and arranged on the top surfaces of the elastic components; the metal bottom plate is a supporting plate body which is arranged on the bottom surface of the thin film circuit board in a compression joint mode and has a smooth surface; and the keyboard base is correspondingly assembled on the bottom surface of the metal bottom plate.

Preferably, the top end of the inner side wall of the slot is respectively provided with a flange for limiting the hook of the guide pin during assembly.

Preferably, each corner of the guide pin forms a circular arc-shaped fillet, and each corner of the trepanning of the key base forms an inclined guide angle, so that the outer wall of each fillet of the guide pin contacts with the inner wall of the inclined guide angle of the key base.

The utility model also provides a keyboard structure, a serial communication port, include:

the key cap is a pressing component which is approximately square, a hollow rectangular guide pin is convexly arranged on the bottom surface of the key cap downwards, two opposite side edges of the guide pin are respectively provided with a clamping hook in a splitting mode, the guide pin extends downwards along a central axis on the bottom surface to form a cross-shaped abutting convex column, and the abutting convex column is correspondingly arranged at the central position in the guide pin; and

the key seats are clamping seats matched with the keycaps, a rectangular columnar sleeve hole is formed in each key seat and used for inserting the guide pin sleeve of the keycap, and clamping grooves are formed in two opposite side edges of each sleeve hole so that the clamping hooks of the keycaps are correspondingly embedded and buckled.

To sum up, the utility model discloses a keyboard structure's beneficial effect lies in: while solving the above technical problems in the prior art, the assembling accuracy of the keyboard can be improved, and the keyboard control accuracy can be improved.

Drawings

Fig. 1 is a schematic perspective exploded view of a keyboard structure according to an embodiment of the present invention.

Fig. 2 is a partially enlarged exploded perspective view of the keyboard structure according to the embodiment of the present invention, wherein a single key cap structure is shown.

Fig. 3 is a schematic diagram of a combination of a single key of a keyboard structure according to an embodiment of the present invention.

FIG. 4 is a cross-sectional view of FIG. 3, showing the assembled state of the sliding groove of the key cap, the key seat, the thin film circuit board and the keyboard base.

FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4.

Description of the main reference numerals

10-key cap

11-guide pin

111-hook

112-round corner

12-resisting convex column

20-key seat

21-trepan boring

211-card slot

212-oblique lead angle

213-Flange

30-film circuit board

31-elastic component

32-Metal soleplate

40-keyboard base

Detailed Description

In order to further understand the present invention, the following detailed description is made of preferred embodiments with reference to the accompanying drawings.

Referring to fig. 1 to 5, the present invention is a keyboard structure, which includes a plurality of key caps 10, a plurality of key seats 20, a thin film circuit board 30 and a metal bottom plate 32, which are sequentially assembled on a keyboard base 40, as described in detail below:

the key cap 10 is a pressing component with a slightly square shape, the bottom surface of the key cap 10 is provided with a hollow rectangular guide pin 11 in a downward protruding manner, two opposite side edges of the guide pin 11 are respectively provided with a hook 111 in a splitting manner, the bottom surface of the key cap 10 extends downwards along the central axis to form a cross-shaped supporting convex column 12, and the supporting convex column 12 is correspondingly arranged at the central position in the guide pin 11. Wherein each corner of the guide pin 11 is formed with a circular arc-shaped round corner 112.

The key seat 20 is a clamping seat assembled corresponding to the key cap 10, a rectangular cylindrical sleeve hole 21 is formed on the key seat 20 for inserting the guide pin 11 of the key cap 10, and two opposite side edges of the sleeve hole 21 are respectively formed with a clamping groove 211, so that the clamping hook 111 of the key cap 10 is correspondingly embedded and buckled. An inclined guide angle 212 is formed at each of the opposite corners of the trepanning 21, when the key cap 10 is assembled to the key base 20, the outer wall of each round corner 112 of the guide pin 11 is in contact with the inner wall of the inclined guide angle 212 of the key base 20, when the key cap 10 is pressed downwards, the guide pin 11 is guided downwards to slide, meanwhile, each round corner 112 of the guide pin 11 is only in contact with the inner wall of the inclined guide angle 212 of the key base 20 at one point position, and the contact positions are distributed in a symmetrical and equal manner, so that the contact area is greatly reduced, the friction force therebetween is relatively reduced, and the beneficial effects of improving the smoothness and stability of the key pressing are achieved.

The top end of the inner sidewall of the slot 211 has a flange 213 for assembling and limiting the hook 111 of the guide pin 11.

The thin film circuit board 30 is assembled on the rectangular sheet-shaped character key press conduction plate between the key base 20 and the metal bottom plate 32, the top surface of the thin film circuit board 30 is assembled with a plurality of elastic components 31, wherein the elastic components 31 can be pressed down by the propping convex columns 12 of the guide pins 11 to generate elastic deformation so as to press the thin film circuit board 30, and further the thin film circuit board 30 generates signals; the abutting convex column 12 of the guide pin 11 is correspondingly matched and arranged on the top surface of the elastic component 31, and the cross section periphery of the abutting convex column 12 is matched with the round hole on the top surface of the elastic component 31 by adopting a Chinese character 'mi' design, so that the phenomenon of hair absorption and adhesion caused by a closed structure can be avoided, the contact friction force between the two is obviously improved, the situation of key clamping cannot occur when the keys of the keyboard are pressed downwards, and the operation is more smooth and comfortable.

The metal bottom plate 32 is a flat-surface supporting plate assembled on the bottom surface of the thin-film circuit board 30 by pressing, so that when the key cap 10 is pressed down, the predetermined displacement stroke among the key cap 10, the key seat 20 and the elastic component 31 is not easily affected, thereby generating stable hand feeling of pressing the segments.

The keyboard base 40 is correspondingly assembled on the bottom surface of the metal bottom plate 32. So far, the utility model discloses a high frequency hot melt technique is with each stratiform stack subassembly in the keyboard, including this key seat 20, this film circuit board 30, this metal soleplate 32 and this keyboard base 40 give the butt fusion and assemble an organic whole to make it assemble into a complete keyboard.

To sum up, the utility model discloses the keyboard structure can promote the accuracy nature of its equipment, and specifically promotes the accurate nature beneficial effect that the keyboard was controlled.

Claims

1. A keyboard structure is characterized in that the keyboard structure is assembled by a plurality of keycaps, a plurality of key seats, a film circuit board, a metal bottom plate and a keyboard base; wherein,

the key cap is a pressing component which is approximately square, a hollow rectangular guide pin is convexly arranged on the bottom surface of the key cap downwards, two opposite side edges of the guide pin are respectively provided with a clamping hook in a splitting way, the guide pin extends downwards along a central axis on the bottom surface to form a cross-shaped abutting convex column, and the abutting convex column is correspondingly arranged at the central position in the guide pin;

the key seat is a clamping seat matched with the key cap, a rectangular columnar sleeve hole is formed in the key seat and used for inserting the guide pin sleeve of the key cap, and two opposite side edges of the sleeve hole are respectively provided with a clamping groove so that the clamping hook of the key cap is correspondingly embedded and buckled;

the thin film circuit board is a rectangular sheet-shaped character key press conduction plate which is assembled between the key seat and the metal bottom plate, a plurality of elastic components are assembled on the top surface of the thin film circuit board, and the abutting convex columns of the guide pins are correspondingly matched and arranged on the top surfaces of the elastic components;

the metal bottom plate is a supporting plate body which is arranged on the bottom surface of the thin film circuit board in a compression joint mode and has a smooth surface; and

the keyboard base is correspondingly assembled on the bottom surface of the metal bottom plate.

2. The keyboard structure of claim 1, wherein the top end of the inner sidewall of the slot has a flange for limiting the hook of the guide pin during assembly.

3. The keyboard structure of claim 1, wherein each corner of the guide pin is formed with a rounded corner, and each corner of the key hole is formed with an inclined guide corner, so that the guide pin contacts the inner wall of the inclined guide corner of the key seat via the outer wall of each rounded corner.

4. A keyboard structure, comprising:

a plurality of key seats corresponding to the card seats matched with the key caps, a rectangular column-shaped sleeve hole is formed on the key seats for the insertion of the guide pin sleeve of the key caps, and two opposite sides of the sleeve hole are respectively formed with a clamping groove so that the clamping hooks of the key caps are correspondingly embedded and buckled.

5. The keyboard structure of claim 4, wherein the top end of the inner sidewall of the slot has a flange for limiting the hook of the guide pin during assembly.

6. The keyboard structure of claim 4, wherein each corner of the guide pin is formed with a rounded corner, and each corner of the key hole is formed with an inclined guide corner, so that the guide pin contacts the inner wall of the inclined guide corner of the key seat via the outer wall of each rounded corner.