CN2336398Y - keyboard - Google Patents

Abstract

A computer keyboard comprises a key mechanism, a keyboard body and a keyboard body, wherein the key mechanism comprises a keycap and a linkage piece which can enable the keycap to move up and down stably; the thin film circuit board is arranged below the key mechanism and comprises a circuit layer; the elastic body which is used for providing restoring force for the key cap of the key mechanism and can trigger the circuit layer of the film circuit board is arranged between the key mechanisms; the first heat dissipation plate is arranged above the thin film circuit board and is provided with a joint seat pivoted with the linkage piece; and the second heat dissipation plate is arranged below the thin film circuit board.

Description

Computor-keyboard

The utility model relates to a kind of computor-keyboard, particularly relates to a kind ofly being assembled in portable computer and having good heat radiating function, and can reduce the intersection bridge formation formula keyboard of portable computer height.

The thin type of portable computer is eliminated outside the height of configuration, connector transfer function and the keyboard that will consider motherboard, also need consider heat dissipation problem.Along with increasing of portable computer function, the more than ever before electronic component of finite space domestic demand configuration at the thin type computer, therefore can reach higher temperature in the housing of portable computer, and radiating efficiency is low, particularly use some electronic component that is unsuitable for hot environment (as chip etc.), can influence the stability of signal transmission, therefore how making portable computer have better heat dissipation environment has become major issue.

In addition, according to the characteristic of operation, the button enter action on the keyboard is flexible, simultaneously can not influence adjacent key again, and the height after button is pushed preferably is about half of pressing keys not, inserts adjacent key with the finger nail that prevents to push.The keyboard structure of portable computer such as United States Patent (USP) the 5th in the known technology, 386,091,5,387, No. 261 disclosed, and it is designed to elastic body with keyboard and is furnished with and vertically leads arm-type structure, and this press-key structure is to end phenomenon for fear of the keyboard card occurring, this vertically leads arm will certain push action stroke, so the height of button is set up higherly.Another kind of follow-on button, it is designed to intersect bridge formation formula structure, and the button height is lower, and its push action stroke is shorter, as United States Patent (USP) the 5th, 399, No. 822.But the slip two ends of this intersection bridge formation formula button are located on the chute of plastic material, and this plastic material is because of the requirement to intensity, and its thickness need reach 1mm, does not obviously meet the requirement of thin typeization.

The purpose of this utility model is to provide a kind of heat-transfer effect that has, can make portable computer signal transmission stable intersection bridge formation formula keyboard really again, has good Heat Conduction Material in this computor-keyboard, by this can with by electronic component or circuit produced in the computer heat through good Heat Conduction Material heat conduction and exhale portable computer, to reduce its computer temperature inside effectively.

The purpose of this utility model is achieved in that promptly provides a kind of computor-keyboard, and it comprises: press button mechanism, the moving part that it comprises keycap and can make the steady upper and lower displacement of keycap; Film circuit board is located at the below of press button mechanism, and it comprises circuit layer; The elastic body that is used to described press button mechanism keycap to provide restoring force also can touch described film circuit board circuit layer is located between the described press button mechanism; First heat sink is located at the top of this film circuit board, has the joining base that articulates with this moving part; Second heat sink is located at the below of described film circuit board.

The principal feature of the utility model keyboard is that the upper surface of the film circuit board in this computor-keyboard is a good thermal conductive material, and this Heat Conduction Material can absorb the heat that electronic component or circuit are produced in the computer, and heat is effectively shed.

According to above-mentioned principal feature, this Heat Conduction Material is located at the both sides of film circuit board, and the heat that film circuit board produced can be transmitted to low temperature side from high temperature side, and outwards conducts to realize good heat radiating.

The advantage of the utility model device is that it is provided with one deck Heat Conduction Material above film circuit board, makes computor-keyboard have great heat radiation effect, and makes the transmission of keyboard when input electric signal stable, and, reduce the keyboard height, reduce the computer volume.

Below in conjunction with accompanying drawing, describe embodiment of the present utility model in detail, wherein:

Fig. 1 is the assembled sectional view of the utility model computor-keyboard one key;

Fig. 2 is the cut-open view of the utility model computor-keyboard pushbotton after pushing;

Fig. 3 is the assembled sectional view of the utility model computor-keyboard second embodiment.

See also Fig. 1, it is the assembled sectional view of the utility model keyboard one key, as shown in the figure, the utility model computor-keyboard 1 comprises: press button mechanism 10, elastic body 11, first heat sink 12, film circuit board 13, second heat sink 14 and closure 15 etc.Wherein, this press button mechanism 10 comprises keycap 101 and cross link 102, and the inboard of this keycap 101 is provided with sleeve 103 and is used for engaging with elastic body 11.One end of this cross link 102 is resisted against the interior sidewall surface 104 of keycap 101, and the other end is articulated on first heat sink 12, but donating bond cap 101 upper and lower displacement reposefully.Elastic body 11 is a resin material, and it comprises junction surface 111, elastic body 112 and touch part 113, and wherein, this junction surface 111 is that a groove can be an one for sleeve 103 interference engagement with aforementioned keycap 101.This elastic body 112 forms the prominent arc of hollow downwards by convergence part 111, and it has suitable elasticity, can make keycap 101 have restoring force.In addition, touch part 113 is protruded out by elastic body 112 hollow wall, can touch the circuit on the film circuit board 13 when 112 times compressive strains of elastic body.

This film circuit board 13 is located between first heat sink 12 and second heat sink 14, and its touch part 113 corresponding to each elastic body 11 is provided with actuating type circuit junction 131, is communicated with actuating type circuit junction 131 when touch part 113 is compressed.This first heat sink 12 is the thick sheet metal of an about 0.3mm, be located at the below of this elastic body 11, on the joining base of first heat sink 12, be formed with a pair of overhead kick 121,122 by its plate body, can be with these cross link 102 1 end clip cards, the other end of cross link 102 and keycap 101 articulate slidably.In addition, second heat sink 14 is located at the below of film circuit board 13 and is in contact with it, and is similarly the thick sheet of metallic material of 0.3mm.Also have, this closure 15 also is a metal material, it is that a bolt is used for first heat sink 12, thin film circuit 13 plates and 14 lockings of second heat sink, this bolt can be run through by a side of second heat sink 14 basically and is screwed into first heat sink 12, this bolt of mat is absorbed by second heat sink 14 as the heat that intermediate medium can be produced computer chip (not shown) or film circuit board 13, is delivered to first heat sink 12 then and dispels the heat outside computor-keyboard.

Please consult Fig. 2 again, the utility model computor-keyboard is after pushing, and the upper end of this cross link 102 can make keycap 101 move down reposefully in the inner edge slippage of keycap 101.What deserves to be mentioned is that the utility model computor-keyboard 1 is because the two-layer gross thickness of first and second heat sink 12,14 0.6mm just reduces about 0.7mm than known computor-keyboard, therefore not only the height of radiating effect enhancement but also keyboard also reduces.

In addition, see also Fig. 3, it is second embodiment of the utility model computor-keyboard, computor-keyboard 1 ＇ of present embodiment comprises press button mechanism 10 ＇ equally, elastic body 11 ＇, first heat sink, 12 ＇, film circuit board 13 ＇, second heat sink, 14 ＇ and closure 15 ＇ etc., the difference of itself and first embodiment is, the joining base of this first heat sink 12 ＇ is by the integrally formed chute of its plate body (not shown), it can be for the end slippage of this cross link 102 ＇, the other end of cross link 102 ＇ and keycap 101 ＇ are fixed pivot joint, please refer to Fig. 3, the end of this cross link 102 ＇ is fixed on deck 105 ＇ of keycap 101 ＇ interior sidewall surface 104 ＇, the other end is articulated on first heat sink, 12 ＇, be provided with retaining wall 123 ＇ near cross link 102 ＇ one side, can support and end cross link 102 ＇ over-travel, this combination of mat can make keycap 101 ＇ upper and lower displacement reposefully equally.

Claims (7)

1. A computer keyboard is characterized in that it includes: a key mechanism, including a keycap and a linkage that can make the keycap move up and down stably; a thin film circuit board, located below the key mechanism, which includes a circuit layer; The keycap of the button mechanism provides the restoring force and can touch the elastic body of the circuit layer of the thin film circuit board, and is arranged between the button mechanisms; the first heat dissipation plate is arranged above the thin film circuit board, and has a The connecting seat pivotally connected to the link; the second heat dissipation plate is arranged under the thin film circuit board. 2. The keyboard according to claim 1, wherein the key mechanism is further provided with a locking member for locking the first heat dissipation plate, the thin film circuit board and the second heat dissipation plate, and it is metallic material. 3. The keyboard according to claim 1 or 2, wherein the linkage of the key mechanism is a cross link, one end of the link is pivotally arranged on the keycap of the key mechanism, and the other end is pivotally arranged on the keycap of the key mechanism. The joint seat of the first heat dissipation plate. 4. The keyboard according to claim 3, wherein the first and second heat dissipation plates are made of metal material, and the thickness of each heat dissipation plate is about 0.3mm. 5. The keyboard according to claim 4, wherein the elastic body is made of a resin material, and includes an engaging portion that can be engaged with the keycap of the key mechanism, and an elastic body that forms a hollow protruding arc downwards from the engaging portion, and a touch part protruding from the inner wall of the hollow elastic body. 6. The keyboard according to claim 5, wherein the joint seat of the first heat dissipation plate is integrally formed with a pair of barbs that can fix and buckle one end of the cross-link, and the cross-link The other end of the keycap is slidably pivoted. 7. The keyboard according to claim 5, characterized in that, the joint seat of the first heat dissipation plate is integrally formed by its plate body into a sliding slot for one end of the cross link to slide, and the other end of the cross link It is fixed and pivotally connected with the keycap.

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