CN100422910C

CN100422910C - Press key structure

Info

Publication number: CN100422910C
Application number: CNB2005100035139A
Authority: CN
Inventors: 林山峰; 吉智勇; 武
Original assignee: Asustek Computer Inc
Current assignee: Asustek Computer Inc
Priority date: 2005-12-28
Filing date: 2005-12-28
Publication date: 2008-10-01
Anticipated expiration: 2025-12-28
Also published as: CN1991695A

Abstract

A button structure is disclosed that used for electric device, and it includes a shell, a button plate, a light conducting part and a circuit board. The button plate can be accommodated in the shell, and the center of button plate has the first thickness, and two sides have the second thickness, and the second thickness is bigger than the first thickness. The two sides of plate has elastic arm which is mounted on the shell. The light conducting part is mounted under the button plate and support the center of button plate, and the button plate is divided into left and right button, and the light ray below the light conducting part is transmitted up and projected on the center of button plate. The circuit board is mounted under the light conducting part and has two switches, the switch corresponds with the left and right buttons separately.

Description

Press-key structure

[technical field]

The invention relates to a kind of press-key structure, particularly a kind of centre has the press-key structure of thin meat design.

[background technology]

Along with the progress of portable electronic product, notebook computer is in light weight, and is easy to carry, is that necessity of many younger generations is equipped with already.But, choose notebook computer except selecting outward appearance, more will be particular about utility function.With general notebook computer, tend to dispose relevant device, the vernier (cursor) that is used on the control display screen curtain moves, and these install as mouse, trace ball, rocking bar, Trackpad and tracing point or the like.Wherein, the invention of Trackpad referred to slide on the surface of Trackpad by to be allowed user's armrest, and the button operation of cooperation Trackpad, slider position on can the controlling computer screen and click the execution function, Trackpad also has function as the mouse right and left key, is a kind of invention quite easily.

Please refer to shown in Fig. 1 (a), is that existing notebook computer has the schematic appearance of Trackpad.Notebook computer 1 comprises a upper shell 101, a lower house 102, a display screen 11, a guidance panel 12, reaches a touch control component 13.Wherein, display screen 11 and guidance panel 12 are to be assembled in respectively on upper shell 101 and the lower house 102, and touch control component 13 also is arranged on the surface of lower house 102.The user can push the operation interface function that touch control component 13 comes Operational Note type computer 1 by touching.

Then please refer to shown in Fig. 1 (b), is the AA ' cross sectional side view of the touch control component of above-mentioned Fig. 1 (a).

Touch control component 13 inner structures system comprises a Trackpad 131, a stationary shaft 132, reaches a circuit board 133.Wherein, stationary shaft 132 is to be horizontally placed on the housing, and stationary shaft 132 two ends and housing binding.131 of Trackpads are covered on the stationary shaft 132.Circuit board 133 is sitting at Trackpad 131 belows, and circuit board 133 both sides have switch 134.Thus, the user push Trackpad 131 with the touching switch 134 be the electrical functionality of start-up circuit plate 133.

Yet, the user push Trackpad with the course of action of touching electrical switch in because stationary shaft is fixed in Trackpad centre below, when pushing Trackpad, the action of Trackpad both sides is as seesaw.Thus, because existing Trackpad is the spring plate that a thickness evenly equates, and stationary shaft places Trackpad central authorities, therefore if push Trackpad near centre, just has not have and touches or situation that sense of touch is not good takes place.The whole plate of existing Trackpad all is made into same thickness, causes the user to push the both sides Trackpad simultaneously easily, and the problem of moving together about producing causes the inconvenience in the use really.

Therefore, the present application people still remains to be improved thoughts on the disappearance of above-mentioned prior art system, is to concentrate on studies, design, and proposes a kind of reasonable in design and effectively get rid of the touch control component of its disappearance.

[summary of the invention]

The press-key structure that provides a kind of centre to have thin meat design of the present invention utilizes the central spring plate that approaches meat, distinguishes the thicker plate of and arranged on left and right sides of pressing keys plate.

A kind of press-key structure of the present invention is applied in the electronic installation, comprises a housing, a button plate, a support member and a circuit board.Its middle shell has an opening.And button plate system is contained in above-mentioned opening, and button plate centre has first thickness, and both sides then have second thickness, and second thickness is greater than first thickness, and the both sides of button plate are fixed in housing respectively.Again, support member is arranged at button plate below, and props up the centre of button plate, makes the button plate divide into the and arranged on left and right sides button.Then be arranged at support member below as for circuit board, at two switches on the circuit board and about being provided with, switch corresponds respectively to the and arranged on left and right sides button of button plate.

In one embodiment of this invention, toward the both sides progressive additive, and the upper surface of button plate is a tabular surface by centre for button plate system, and lower surface is two inclined-planes.

In one embodiment of this invention, support member system is made of optical material, support member below light upwards can be transmitted and is projeced into the centre of button plate.And circuit board has a light source, and is sitting at the support member below.Support member more comprises a support column in addition, and is positioned at support member upper face center place, in order to prop up the central authorities of button plate.

In one embodiment of this invention, the button plate more comprises a carriage, is positioned at support member below, and has perforation and combine with support member.

In another embodiment of the present invention, press-key structure system comprises a housing, a button plate, a light guide and a circuit board.The button plate can be contained in the opening that housing has, and button plate centre has first thickness, and both sides then have second thickness, and second thickness is greater than first thickness, and button plate two ends are fixed in housing respectively.Support member is arranged at button plate below, props up the centre of button plate, makes the button plate divide into the and arranged on left and right sides button, the light of its below upwards can be transmitted and be projeced into the centre of button plate by light guide.And circuit board is arranged at the light guide below, has two switches, and switch corresponds respectively to the and arranged on left and right sides button of button plate.

In another embodiment of the present invention, wherein button plate system toward the both sides progressive additive, and the upper surface of button plate is a tabular surface by centre, and lower surface is two inclined-planes.

In order further to understand feature of the present invention and technology contents, see also following about detailed description of the present invention and accompanying drawing, yet appended graphic only provide with reference to and the explanation usefulness, be not to be used for the present invention is limited.

[description of drawings]

Fig. 1 (a) has the synoptic diagram of Trackpad for existing notebook computer;

Fig. 1 (b) is AA ' the section side diagrammatic sketch of the touch control component of Fig. 1 (a);

Fig. 2 (a) is the synoptic diagram of the press-key structure of notebook computer of the present invention;

Fig. 2 (b) is the side schematic view of the press-key structure of Fig. 2 (a);

Fig. 3 (a) is the front schematic view of button plate of the present invention;

Fig. 3 (b) is the reverse side synoptic diagram of button plate of the present invention;

Fig. 3 (c) is the synoptic diagram of support member reverse side of the present invention;

Fig. 3 (d) is the synoptic diagram in the embodiment front of light guide for support member of the present invention;

Fig. 3 (e) is the synoptic diagram in carriage of the present invention front;

Fig. 3 (f) is the synoptic diagram of the lower house of carriage of the present invention institute combination;

Fig. 4 (a) is the structure explosive view of press-key structure of the present invention; And

Fig. 4 (b) finishes figure for the structure of press-key structure of the present invention.

[embodiment]

The present invention discloses a kind of press-key structure, and particularly a kind of centre has the press-key structure of thin meat design, utilizes the spring plate of the thin meat of central authorities, is distinguished the thicker plate of and arranged on left and right sides of pressing keys plate.

See also Fig. 2 (a), it is the press-key structure synoptic diagram of the notebook computer of the embodiment of the invention.Notebook computer 2 comprises a upper shell 21, a lower house 22, a display screen 23, a guidance panel 24 and a press-key structure 25.

Display screen 23 and guidance panel 24 are to be assembled in respectively on upper shell 21 and the lower house 22, and press-key structure 25 also is arranged on the lower house 22.Surface by touching press-key structure 25 can be shown in display screen 23 with operation interface functions such as verniers.

Please refer to Fig. 2 (b), it is the side diagrammatic cross-section of the press-key structure 25 of above-mentioned Fig. 2 (a).Press-key structure comprises a lower house 22, a button plate 26, a support member 27 and a circuit board 28.Lower house 22 has an opening, and button plate 26 is to be contained in the above-mentioned opening.The button plate 26 of the embodiment of the invention has first thickness 2601 in centre, and both sides then have second thickness, 2602, the second thickness 2602 greater than first thickness 2601.Support member 27 is arranged at button plate 26 belows, and props up the centre of button plate 26, makes button plate 26 divide into the and arranged on left and right sides button.Circuit board 28 is arranged at support member 27 belows, and its upper surface both sides are provided with switch 281 respectively, and switch corresponds respectively to the and arranged on left and right sides button of button plate 26, and the user can come touch switch 281 by the plate 26 that pushes button.Understand for convenience, below be described in detail at each element.

Please refer to Fig. 3 (a), b, it is the synoptic diagram of the positive and negative of above-mentioned button plate 26.

Button plate 26 is an elastic material, and by centre toward the both sides progressive additives, and the upper surface of button plate 26 is a tabular surface, and lower surface be by the inclined-plane of centre toward the both sides inclination.Having a plurality of second projection, 262, the second projections 262 around lower surface is to be used for limiting button plate stroke.In addition, at button plate 26 lower surfaces and be distributed with a plurality of the 3rd projections 263 that are right against switch, when button plate 26 was moved down, the 3rd projection 263 can be touched corresponding switch.

Button plate 26 both sides have made elasticity arm 264 respectively, and as shown in FIG., elasticity arm 264 is the ring texture of a strip, and this ring texture one side is connected in the end of button plate 26, then produces at least one cavity ring 2641 on another side.Be to be representative to arrange three cavity ring 2641 in the present embodiment, wherein cavity ring 2641 is in order to be fixed in the usefulness of housing.

Please refer to shown in Fig. 3 (c), is the synoptic diagram of support member 27 reverse side of the present invention.Support member 27 is a long shaped plate block structure, is sitting at button plate 26 centre below, and support member 27 upper face center places have always to first support column 271, in order to prop up the centre of button plate 26.Position with respect to first support column 271, support member 27 lower surfaces also have one second support column 272, in order to combine with the following carriage of narrating, and, on support member 27 lower surfaces of second support column, 272 both sides, be provided with a pair of the 4th projection 273, also be used for the usefulness that combines with the following carriage of narrating.

In another embodiment of the present invention, utilize a light guide to replace support member in the foregoing description.Please refer to shown in Fig. 3 (d), this figure promptly is this kind embodiment front schematic view.In the present embodiment, light guide 30 is to be made of optical material, and can divide into first support column 301 and second support column 302.When a light source was arranged on the circuit board 28, the light of light source can upwards be sent to first support member 301 by second support member 302, was projeced into button plate 26 its central thin locations again.So, the user just can see the light that appears from button plate top.

Then please refer to shown in Fig. 3 (e), is the synoptic diagram in carriage of the present invention 29 fronts.Carriage 29 two ends sections are a ㄇ font, and are manufactured with a perforation 291 in carriage 29 central authorities, and second support column 272 of above-mentioned bracing frame 27 or light guide 30 passes perforation 291 and combines.And on carriage 29 surfaces near place, the both sides of perforation 291 and be provided with hole 292 so that the 4th projection 273 that makes carriage 29 and above-mentioned bracing frame 27 with lock, heat is melted or other modes combine.One first combined hole 293 is produced in the position of contiguous perforation 291 1 ends on carriage 29 surfaces in addition, shown in Fig. 3 (f), is the synoptic diagram that has illustrated the lower house 22 that combines with carriage 29.Wherein carriage 29 is with after support member 27 (or light guide 30) combines, lower house 22 is that the edge that a trip 2201 blocks carriage 29 is set, lower house also is provided with and first combined hole, 293 corresponding cylinders 2202, can utilize screw to lock fixing or other mode combinations.

Please refer to Fig. 4 (a) and (b), it is for the structure explosive view of press-key structure of the present invention and finish figure.Press-key structure comprises a lower house 22, a button plate 26, a light guide 30, a carriage 29 and a circuit board 28.

Carriage 29 passes with second support column 272 by perforation 291 with light guide 30 and combines, and carriage 29 also utilizes first combined hole 293 to combine in the locking mode with the cylinder 2202 of lower house 22.In this embodiment, on the two ends of carriage 29 trip or screw can be set respectively, utilize this trip or screw carriage can be fixed on the lower house 22.This moment, the cavity ring 2641 of button plate 26 its elasticity arms 264 also can be fixed on the 5th projection 221 of lower house 22, and the upper surface that exposes button plate 26 is in the opening of lower house 22.In addition, also can allow the switch 281 of circuit board 28 just corresponding to the 3rd projection 263 of button plate 26, and, cooperate the 6th projection 223 that is locked in lower house a plurality of the 3rd holes 284 around the circuit board 28.Thus, not only the user can be by the plate 26 touching left and right sides switches 281 that push button, and the light source of circuit board 28 and light guide 30 below light also can upwards transmit, and with the centre of ray cast in button plate 26.

In other embodiments of the invention, the button plate of press-key structure can be a plastic cement, metal or other clear plastic materials.This press-key structure is to be combined in the housing, also can be applicable on the element of surface of contact such as frame before the assembled LED.And it is attractive in appearance to increase that the outward appearance of press-key structure also can be done surface treatment (as spraying paint).The button plate of the embodiment of the invention can have thin thickness in centre, and both sides then have thicker thickness, and the side also presents a ㄇ font structure.

Indulge the above, the thin meat design of the progressive thickness of the button plate of the embodiment of the invention, the sense of touch that existing Trackpad can produce seesaw by comparison, this shortcoming is promptly got rid of in the thin meat design of button plate, and still can respond to tangible sense of touch and correct keystroke driving near centre.In addition, the press-key structure central interior, can clearly differentiate to resolve and touch left button or right button as support with bracing frame or light guide and carriage, be can not produce about with moving problem.Another advantage is that light guide can transmit the light of light source from button plate central authorities thin location, does not need as described in the prior art, needs to make a holes in button plate centre and handles and relevant leaded light part, and light is transmitted.Change speech, above-mentioned button plate is an one piece design in outward appearance not only, integrally formed aesthetic feeling is promptly arranged, and right and left key function sense of touch is clearer and more definite, and utilize the thin meat design of light guide and button plate to allow light transmit perfectly to present by support member or light guide.

Though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; anyly have the knack of this skill person; without departing from the spirit and scope of the present invention; when can being used for a variety of modifications and variations, so protection scope of the present invention is as the criterion when looking accompanying the claim person of defining.

Claims

1. press-key structure is applied to comprise in the electronic installation:

One housing has an opening;

One button plate is to be contained in above-mentioned opening, and this button plate centre has first thickness, and both sides then have second thickness, and second thickness is greater than first thickness, and these both sides are fixed in this housing respectively;

One support member is arranged at this button plate below, and props up this centre of this button plate, makes this button plate divide into a Left button and a right button; And

One circuit board is arranged at this support member below, has two switches, corresponds respectively to this Left button and this right button of this button plate.

2. according to the press-key structure of claim 1, it is characterized in that above-mentioned button plate is toward this both sides progressive additive by this centre.

3. according to the press-key structure of claim 1, it is characterized in that the upper surface of above-mentioned button plate is a tabular surface, and lower surface is two inclined-planes.

4. according to the press-key structure of claim 1, it is characterized in that these both sides of above-mentioned button plate respectively have an elasticity arm in order to be fixed in this housing.

5. according to the press-key structure of claim 1, it is characterized in that above-mentioned support member is to be made of optical material.

6. according to the press-key structure of claim 5, it is characterized in that the foregoing circuit plate has a light source, be sitting at this support member below.

7. according to the press-key structure of claim 1, it is characterized in that above-mentioned support member more comprises a support column, be positioned at this support member upper face center place, in order to prop up this button plate.

8. according to the press-key structure of claim 1, it is characterized in that, more comprise a carriage, be positioned at this support member below, and have a perforation and combine with this support member.