CN201629249U

CN201629249U - Key structure

Info

Publication number: CN201629249U
Application number: CN2009202667550U
Authority: CN
Inventors: 王永家; 蔡政宏; 陈柏光; 黄柏强; 张婷娟; 庄惠婷
Original assignee: Inventec Corp
Current assignee: Inventec Corp
Priority date: 2009-11-20
Filing date: 2009-11-20
Publication date: 2010-11-10
Anticipated expiration: 2019-11-20

Abstract

The utility model discloses a key structure, it includes a casing, a circuit board and a button. The casing has an opening. The circuit board is arranged under the opening of the shell and is provided with a plurality of press switches. The key is arranged on the circuit board and is positioned in the opening of the shell. The key has a body, a separating plate and two elastic arms. The elastic arms are extending ends of the body in a longitudinal direction, and the tail ends of the elastic arms are fixed to the shell. The partition plate is positioned in the middle of the body, and a normal direction of the partition plate is perpendicular to a normal direction of the body.

Description

Press-key structure

Technical field

The utility model relates to a kind of press-key structure, and particularly relevant for a kind of press-key structure of portable electronic devices.

Background technology

Along with the development of electronics technology, the consumer for the demand of electronic product towards frivolous and be easy to carry.Compared to desktop computer, having notebook computer easy to carry has become main flow one.In addition, slide-mouse also is integrated among the notebook computer, to reduce the burden that the user carries notebook computer outside the outer time spent.

Slide-mouse is that the mode with touch-control module is integrated on the notebook computer.Generally speaking, this touch-control module comprises a Trackpad and a press-key structure, the user can be on Trackpad slippage adjust the position or the rolling spool of index, and the pressing keys structure is come executive program.Fig. 1 is the schematic diagram of existing press-key structure.Please refer to Fig. 1, press-key structure 100 normally is heat-fused in the mid portion of keying body 110 on the upper casing 130, the end 112,114 of keying body 110 forms cantilever then, and the user promptly is end 112,114 contacts of pressing keys body 110 and the push switch 122 on the actuation circuit plate 120.This kind assembling mode also is difficult for, and if also can't heavy industry during assembly defect, also cause the end 112,114 and push switch 122 card key or loose contacts, influence use of keying body 110 easily because of the assembling tolerance.

The utility model content

The utility model provides a kind of and is easy to assemble and press-key structure simple in structure.

The utility model proposes a kind of press-key structure, it comprises a casing, a circuit board and a button.Casing has an opening, and circuit board arrangement is under shell opening and have a plurality of push switches.Key configurations is on circuit board, and be positioned at shell opening, this button has a body, a demarcation strip and two elastic arms, and these elastic arms are the elongated end of body one longitudinally, the end of elastic arm is fixed to casing, and demarcation strip is positioned in the middle of the body, and a normal direction of demarcation strip is perpendicular to a normal direction of body.

In an embodiment of the utility model press-key structure, above-mentioned demarcation strip contact circuit plate one end face.

In an embodiment of the utility model press-key structure, above-mentioned body has a plurality of trips, and circuit board has a plurality of block button holes, and these trip correspondences pass these block button holes, so that key groups is loaded on circuit board.

In an embodiment of the utility model press-key structure, above-mentioned body has a plurality of projections towards a surface of circuit board, and these projections the corresponding push switch in position is set.When button was not pressed, each projection and pairing push switch were kept a spacing.

In an embodiment of the utility model press-key structure, above-mentioned demarcation strip also comprises two reference columns that extend towards circuit board, and there are two location holes at corresponding these reference column places of circuit board, and these reference column correspondences are arranged in these location holes.

Based on above-mentioned, button can directly be assembled in circuit board with grab in the utility model, saves the complicated assembling with hot melting way.In addition, also can avoid because of assembling card key or the loose contact that tolerance causes.

For the above-mentioned feature and advantage of the utility model can be become apparent, embodiment cited below particularly, and cooperate institute's accompanying drawing to be described in detail below.

Description of drawings

Fig. 1 is the schematic diagram of existing press-key structure;

Fig. 2 is applied to the schematic diagram of electronic installation for the utility model one embodiment press-key structure;

Fig. 3 is the schematic perspective view of Fig. 2 press-key structure;

Fig. 4 is the cutaway view of Fig. 3 press-key structure;

Schematic diagram when Fig. 5 is subjected to pushing for button.

Description of reference numerals

100,200: press-key structure; 110: keying body;

112,114: end; 120: circuit board;

122,222: push switch; 130: upper casing;

210: casing; 212: opening;

220: circuit board; 220a: end face;

224: block button hole; 226: location hole;

230: button; 232: body;

232a: trip; 232b: surface;

232c: projection; 234: demarcation strip;

234a: reference column; 236a, 236b: elastic arm;

300: notebook computer; 310: Trackpad;

N1, N2: normal direction; D: spacing.

Embodiment

Fig. 2 is the schematic perspective view of Fig. 2 press-key structure for schematic diagram, Fig. 3 that the utility model one embodiment press-key structure is applied to electronic installation, and Fig. 4 is the cutaway view of Fig. 3 press-key structure.Please also refer to Fig. 2, Fig. 3 and Fig. 4, press-key structure 200 is suitable for being applied in the notebook computer 300, and this press-key structure 200 and a Trackpad 310 form a touch-control module, and user's finger slippage can mobile index on Trackpad 310, finger application of force pressing keys structure 200 can reach to be keyed in or the function of executive program.Press-key structure 200 comprises a casing 210, a circuit board 220 and a button 230.Casing 210 is equiped with the casing of keyboard for notebook computer 300, and it has an opening 212, and circuit board 220 is disposed at casing 210 openings 212 times, and circuit board 220 has a plurality of push switches 222.Button 230 is disposed on the circuit board 220, and be positioned at casing 210 openings 212, this button 230 has a body 232, a demarcation strip 234 and two

elastic arm

236a, 236b, and these

elastic arms

236a, 236b are the elongated end of body 232 1 longitudinallies, the end of

elastic arm

236a, 236b is fixed to casing 210, and demarcation strip 234 is positioned in the middle of the body 232, and a normal direction N1 of demarcation strip 234 is perpendicular to a normal direction N2 of body.

Hold above-mentioned, present embodiment

elastic arm

236a, 236b and body 232 are formed in one, and in other embodiment,

elastic arm

236a, 236b utilize mode such as chimeric fitting together with body 232, and the material of

elastic arm

236a, 236b can be identical or different with body 232.In addition, body 232 has a plurality of trip 232a, and circuit board 220 has a plurality of block button holes 224, and these trips 232a correspondence passes these block button holes 224, so that button 230 is assembled in circuit board 220.Present embodiment button 230 and circuit board 220 utilize the combination of trip 232a and block button hole 224 to fit together, the existing assembling of using hot melting way, present embodiment press-key structure 200 not only has easy assembling and advantage easy to rework, and is also bigger for the tolerance of assembling tolerance.In addition, after button 230 fits together with circuit board 220, demarcation strip 234 contact circuit plates 220 1 end face 220a.

Please continue with reference to figure 2, Fig. 3 and Fig. 4, body 232 has a plurality of projection 232c towards a surperficial 232b of circuit board 220, and these projections 232c the corresponding push switch 222 in position is set.When button 230 was not pressed, each projection 232c and pairing push switch 222 were kept a spacing d.In addition, demarcation strip 234 also comprises two reference column 234a that extend towards circuit board 220, and there are two location holes 226 at circuit board 220 corresponding these reference columns 234a places, and these reference columns 234a correspondence is arranged in these location holes 226.Locating effect when being provided with of reference column 234a can increase assembling and increase assembling after steadiness.

Subsidiary one carry be, shown in Figure 4 only for this reason the right of press-key structure 200 half, and this press-key structure 200 be with demarcation strip 234 as symmetrical centre, the design of structure left and right symmetrically.

Schematic diagram when Fig. 5 is subjected to pushing for button.Please also refer to Fig. 3 and Fig. 5, when the user press...withes one's finger the right-hand member of the body 232 of pressing button 230, the stressed inclination of the right-hand member of body 232, push switch 222 is pushed and is activated in projection 232c contact, and the left end meeting that can avoid body 232 that is provided with of demarcation strip 234 contact circuit plates 220 end face 220a is followed inclination and then touched the push switch 222 that is positioned at the left side because of the stressed of right-hand member.What merit attention is that elastic arm 236a is out of shape along with the stressed inclination of body 232 right-hand members, and stores an elastic restoring force.When the user stopped the application of force at body 232 right-hand members, the elastic restoring force of elastic arm 236a can make the right-hand member of the body 232 of inclination return to original position, and returns to the spacing d of being separated by between projection 232c and the push switch 222, shows as Fig. 4.

Same, when the user press...withes one's finger when pressing the left end of body 232, the left end of body 232 also can stressed inclination touch the push switch 222 that is positioned at the left side simultaneously, and elastic arm 236b also can and then be out of shape and the storage elasticity restoring force, stop the application of force up to the user, the elastic restoring force of elastic arm 236b body 232 is resiled and the left end travelling backwards of body 232 to original position.

In sum, in the utility model press-key structure, the setting of demarcation strip can be divided into button left and right in user's practical operation, does not need additional processing to form other left and right press key, so can reduce work flow.Moreover, the trip of button buckles in the block button hole of circuit board, and elastic arm is fixed in casing, the assembling of whole press-key structure can not need through the complicated processing procedure of hot melt, assembling mode is easy to rework comparatively simply again, and for the assembling tolerance between the element bigger tolerance is arranged.From the above, the utility model press-key structure has to simplify to be made flow process and increases yield, and then reaches the demand that reduces cost.

It should be noted that at last: above embodiment is only in order to explanation the technical solution of the utility model but not limit it, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that: it still can make amendment or be equal to replacement the technical solution of the utility model, and these modifications or be equal to replacement and also can not make amended technical scheme break away from the spirit and scope of technical solutions of the utility model.

Claims

1. A button structure, characterized in that, comprising:

a casing, the casing has an opening;

a circuit board, configured under the opening of the casing, the circuit board has a plurality of push switches; and,

A button is arranged on the circuit board and is located in the opening of the casing, the button has a body, a partition plate and two elastic arms, and the elastic arms are an extension end of the body in a longitudinal direction, And the end of the elastic arm is fixed to the casing, and the partition plate is located in the middle of the body, and a normal direction of the partition plate is perpendicular to a normal direction of the body.

2. The button structure according to claim 1, wherein the partition plate contacts a top surface of the circuit board.

3. The button structure according to claim 1, wherein the body has a plurality of hooks, and the circuit board has a plurality of snap holes, and the hooks pass through the snap holes correspondingly, so as to The button is assembled on the circuit board.

4 . The button structure according to claim 1 , wherein a surface of the main body facing the circuit board has a plurality of protrusions, and the positions of the protrusions correspond to the push switches.

5 . The key structure according to claim 4 , wherein when the key is not pressed, each protrusion maintains a distance from the corresponding one of the push switches.

6. The button structure according to claim 1, wherein the partition plate further comprises two positioning columns extending toward the circuit board, and the circuit board has two positioning holes corresponding to the positioning columns, and the The positioning posts are correspondingly located in the positioning holes.