CN102036515A

CN102036515A - Shell structure of electronic device

Info

Publication number: CN102036515A
Application number: CN2009101776875A
Authority: CN
Inventors: 陈家震
Original assignee: Inventec Corp
Current assignee: Inventec Corp
Priority date: 2009-09-30
Filing date: 2009-09-30
Publication date: 2011-04-27

Abstract

The invention discloses a shell structure of an electronic device. The shell structure comprises a shell, a key body and a press piece, wherein the key body is provided with a support part arranged on the shell, a button part which corresponds to a micro switch of a circuit board, and elastic arms connected between the support part and the button part respectively; the button part has a displacement travel relative to the support part through the elastic arms; the press piece is arranged on the key body; two opposite ends of the press piece are provided with position-limiting components which are position-limiting holes pressed against the support part respectively; and the press piece selectively presses the button part for displacement and triggers the micro switch.

Description

The casing structure of electronic installation

Technical field

The present invention relates to a kind of casing structure of electronic installation, particularly a kind of casing structure with electronic installation of keying body.

Background technology

Because the progress of science and technology, portable electronic product has developed and many devices that produce control signal in recent years, so that the cursor (cursor) that is positioned on the display moves, these install such as mouse, trace ball (trackball), joystick (joy-sticks), Trackpad (touch pad) and tracing point (track point) or the like.With the mobile computer is example, a Trackpad and the key groups that matches of Trackpad therewith on mobile computer, nearly all be equipped with, when the user slides to point on the surface of Trackpad, it is the cursor position on the may command display, and the press points selection operation of cooperation key groups, allow the user can easily finish similar operation point selection function, thereby do not need on mobile computer, to connect again in addition mouse as input units such as mouses.

The key groups structure of early stage Trackpad is made of keycap and cantilever part, and has a trepanning in the end of cantilever part.Offer the saturating groove that the size with key groups is complementary on the casing of mobile computer, and the position that is adjacent to groove in casing inside is provided with a plurality of hot melt posts.When key groups was installed in casing, in the saturating groove that earlier is placed in the keycap correspondence on the casing to be offered, cantilever part was sheathed on the keycap, and the trepanning of cantilever part is then corresponding to be sheathed on the hot melt post of casing inside.Then, use fuse machine that the hot melt post is given heat fused, make hot melt column material after the fusing with after cantilever part merges mutually, make keycap be able to and be installed on the casing, and keycap can carry out shuttle elastic displacement with respect to casing by the elastic force of cantilever part by the binding of cantilever part.The key groups structure of above-mentioned existing mobile computer, its cantilever are between keycap and casing.

Existing key groups must additionally add a cantilever part can make keycap with respect to the casing elastic displacement, therefore must additionally manufacture this spare part of cantilever part, and assembling procedure is also too complicated, causes the plastic material to expend too much and the too high problem of manufacturing cost.

In view of this, have manufacturer that existing key groups is carried out structural improvement then, it is that cantilever is directly designed surface of shell in mobile computer, and keycap is installed on the housing and corresponding to cantilever.When the user pushed keycap, keycap promptly pushed against cantilever downwards and produces strain, and the sensitive switch on the cantilever circuits for triggering plate, carried out the purpose of preset function to reach the control mobile computer.

Yet the keycap of above-mentioned key groups is the centre position that is positioned at the cantilever of housing, and its effective contact area is quite narrow and small, causes keycap can effectively contact and push against by the central part that is pressed in cantilever.When if the user is pressed into the non-centre position (for example being pressed into two ends of keycap) of keycap, the action of keycap as seesaw towards the perk of non-stress direction, so will cause trigger sensitivity not good, or even situation about trigger losing efficacy takes place, and press on the feel also undesirable.

Summary of the invention

In view of above problem, the invention provides a kind of casing structure of electronic installation, the spare part of commonly using key groups so as to improvement is various, causes manufacturing cost too high, and existing key groups is easy to generate problems such as triggering inefficacy when pushing.

The present invention discloses a kind of casing structure of electronic installation, and electronic installation has a circuit board, and has at least one sensitive switch on the circuit board.Casing structure includes a housing, a keying body, reaches a pressing piece.Keying body has a support portion, at least one button portion, and at least two elastic arms, and the support portion is arranged on the housing, and two opposite ends of support portion have a spacing hole respectively.Button portion is corresponding to sensitive switch, and two ends of elastic arm are connected to support portion and button portion, has a displacement stroke to make button portion with respect to the support portion.Pressing piece is installed on the keying body, and two opposite ends of pressing piece have a limit assembly respectively, for being resisted against two spacing holes of support portion.Pressing piece optionally compresses the button position and moves, and triggers sensitive switch.

The present invention makes the button portion interlock deformation displacement of keying body by forcing in pressing piece, and triggers sensitive switch, thereby is significantly simplified the quantity and the assembling procedure of casing spare part.

And, normality remains in the keying body top to pressing piece by the mutual restriction of limit assembly and support portion, therefore when the user is pressed into the non-centre position of pressing piece, still can effectively the direction transmission of strength towards the sensitive switch of circuit board will be pushed, make pressing piece trigger sensitive switch smoothly, arbitrary end of avoiding pressing piece is towards the perk of non-stress direction, and then causes the problem that lost efficacy that triggers, also provide simultaneously the user good press feel.

Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.

Description of drawings

Figure 1A is the decomposing schematic representation of one embodiment of the invention;

Figure 1B is the decomposing schematic representation of one embodiment of the invention;

Fig. 2 is the schematic perspective view of one embodiment of the invention;

Fig. 3 A is the cross sectional side view of one embodiment of the invention; And

Fig. 3 B is the cross sectional side view when pressed state of one embodiment of the invention.

Wherein, Reference numeral

100 electronic installations

110 circuit boards

111 sensitive switches

112 open-works

120 housings

121 jacks

122 locking holes

130 keying body

131 support portions

1311 spacing holes

1312 latches

132 button portions

1321 contact salient points

1322 assembly holes

133 elastic arms

134 saturating grooves

140 pressing pieces

141 limit assemblies

142 columns

150 locked assemblies

Embodiment

Below in conjunction with accompanying drawing structural principle of the present invention and operation principle are done concrete description:

The casing structure of electronic installation of the present invention, wherein, electronic installation is to be mobile computer (notebook), display (diaplay), camera, mobile phone (mobile phone), personal digital assistant (Personal Digital Assistant, PDA) or GPS (Global Position System) (Global PositioningSystem GPS) waits the device with button operation.Below only be in order to illustrate, not as limit.Below will be illustrated as embodiments of the invention with mobile computer.

Figure 1A to Fig. 3 A is the schematic perspective view and the cross sectional side view of one embodiment of the invention.As shown in the figure, casing structure of the present invention is to be applied to have on the electronic installation 100 of a circuit board 110, electrically be provided with two sensitive switches 111 and a plurality of open-work 112 on the circuit board 110, and also can electrically be provided with a Trackpad (not shown) on the circuit board 110.The disclosed casing structure of the present invention includes a housing 120, a keying body 130 and a pressing piece 140, and its middle shell 120 offers a plurality of jacks 121 and a plurality of locking hole 122.Yet the jack 121 of housing 120 is to determine according to actual design with the quantity of locking hole 122, does not exceed with the disclosed quantity of present embodiment.A plurality of locked assemblies 150, it for example is screw, wear the open-work 112 of oversampling circuit plate 110 respectively and be attached to the locking hole 122 of housing 120, make circuit board 110 be fixedly arranged on the housing 120 and unlikely displacement comes off, be combination between right locking hole 122 and the locked assembly 150, therefore be not restricted to above illustrating for matching each other.

See also Figure 1A to Fig. 3 A, keying body 130 is to be a long rectangular slab body structure, keying body 130 has a saturating groove 134, support portion 131 is the outsides that are positioned at keying body 130, and have side by side and symmetrically arranged two button portions 132 in the saturating groove 134, and two groups of symmetrical elastic arms 133, the quantity of wherein single group elastic arm 133 is two, the combination of therefore single button portion 132 collocation, two elastic arms 133 can be considered one group of press-key structure, and the keying body 130 of present embodiment has two groups of press-key structures, but not as limit.Offer spacing hole 1311 respectively between two opposite ends of support portion 131 and the two button portions 132, and support portion 131 also offers a plurality of assembly holes 1322.

Cross contact salient point 1321 is equipped with respectively with respect to the side of circuit board 110 in two button portions 132 of keying body 130, and the relative position of two contact salient points 1321 is two sensitive switches 111 that correspond respectively to circuit board 110.Two ends of two elastic arms 133 are to be connected to support portion 131 and button portion 132, make button portion 132 have a displacement stroke with respect to support portion 131, and the direction of the displacement stroke of button portion 132 is vertical mutually with circuit board 110.

It should be noted that, the spacing hole 1311 that is positioned at 131 2 opposite ends, support portion is to offer (promptly vertical mutually with the direction of the displacement stroke of button portion 132) towards horizontal direction, and the spacing hole 1311 between two button portions 132 is to offer (promptly the direction with the displacement stroke of button portion 132 is parallel to each other) towards vertical direction, and a wherein spacing hole 1311 of two opposite ends of support portion 131 is to be one group with a wherein spacing hole 1311 on button portion 132 sides, and other spacing hole 1311 then is another group combination.In addition, support portion 131 is extended with a plurality of latches 1312 on the side with respect to housing 120, is inserted in respectively in the jack 121 of housing 120, makes support portion 131 be fixedly arranged on the housing 120.

Please continue to consult Figure 1A to Fig. 3 A, pressing piece 140 is the long rectangle plate bodys that are matched with the saturating groove 134 of keying body 130 for Form Factor, pressing piece 140 has a limit assembly 141 respectively corresponding to two opposite ends at the position of a button portion 132 wherein, promptly the outer most edge of pressing piece 140 with respect to convexing with four symmetrical limit assemblies 141 on the side of circuit board 110 altogether.Wherein, two limit assemblies 141 that are positioned at pressing piece 140 outer most edge are projection cube structure, be positioned at pressing piece 140 and be hook structure, and the limit assembly 141 of the limit assembly 141 of projection kenel and grab kenel is to be one group of combination with respect to two limit assemblies 141 of the side of circuit board 110.And, the direction that is provided with of the limit assembly 141 of grab kenel is to extend (promptly the direction with the displacement stroke of button portion 132 is parallel to each other) towards vertical direction, and the direction that is provided with of the limit assembly 141 of projection kenel is to extend (promptly vertical mutually with the direction of the displacement stroke of button portion 132) towards horizontal direction.

Pressing piece 140 is with respect to also convexing with the column 142 of quantity corresponding to the assembly hole 1322 of button portion 132 on the side of keying body 130, and those columns 142 are to be inserted in respectively in the assembly hole 1322, and column 142 is given fusion in the heat mode of melting, make pressing piece 140 be installed in unlikely disengaging on the keying body 130.Simultaneously, the limit assembly 141 of the projection kenel of pressing piece 140 is to be inserted in the spacing hole 1311 of 131 2 opposite ends, support portion, and the limit assembly 141 of grab kenel is the spacing hole 1311 of hook in proximate buttons portion 132 sides, make pressing piece 140 by limit assembly 141 and spacing hole 1311 mutually against and normality remains in the top of keying body 130, and pressing piece 140 is the saturating grooves 134 that cover keying body 130 fully, avoids the gap location of personage between keying body 130 and pressing piece 140 intentionally to destroy the marriage relation of two members.

Shown in Fig. 3 A and Fig. 3 B, when forcing in pressing piece 140 downwards with the operation that makes pressing piece 140 and push, pressing piece 140 compresses button portion 132 strains and towards the direction displacement of circuit board 110, the contact salient point 1321 of button portion 132 contacts with sensitive switch 111 at this moment, carries out preset function so as to triggering sensitive switch 111.When if the user is pressed into the non-centre position of pressing piece 140, the limit assembly 141 of pressing piece 140 pind down with 1311 mutual interference of the spacing hole of support portion 131, therefore arbitrary end of pressing piece 140 can't be towards the perk of non-stress direction, make that pushing strength still can effectively make the direction straight-line displacement of pressing piece 140 towards the sensitive switch 111 of circuit board 110, the situation of avoiding triggering inefficacy takes place.

The casing structure of electronic installation that the present invention discloses makes the button portion interlock deformation displacement of keying body and triggers sensitive switch by forcing in pressing piece, significantly simplify the quantity and the assembling procedure of casing spare part.And, when the user is pressed into the non-centre position of pressing piece, still can be spacing and effectively make sensitive switch on pressing piece vertical displacement and the circuits for triggering plate by the interference between limit assembly and the keying body, the problem of avoiding triggering inefficacy takes place, and possesses simultaneously the good feel that presses is arranged.

Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.

Claims

1. the casing structure of an electronic installation, this electronic installation has a circuit board, and this circuit board has at least one sensitive switch, it is characterized in that this casing structure includes:

One housing;

One keying body, have a support portion, at least one button portion, and at least two elastic arms, this support portion is arranged on this housing, and two opposite ends of this support portion have a spacing hole respectively, this button portion is corresponding to this sensitive switch, two ends of this two elastic arm are connected to this support portion and this button portion, have a displacement stroke to make this button portion with respect to this support portion; And

One pressing piece is installed on this keying body, and two opposite ends of this pressing piece have a limit assembly respectively, and for being resisted against this two spacing hole respectively, this pressing piece can optionally compress this button position and move and trigger this sensitive switch.

2. the casing structure of electronic installation according to claim 1 is characterized in that, this keying body also has a saturating groove, and this button portion and this two elastic arm are for being arranged in this saturating groove.

3. the casing structure of electronic installation according to claim 1 is characterized in that, this button portion has a contact salient point, and this contact salient point triggers this sensitive switch corresponding to this sensitive switch of this circuit board with selectivity.

4. the casing structure of electronic installation according to claim 1, it is characterized in that, this button portion of this keying body has at least one assembly hole, this pressing piece has at least one column with respect to a side of this keying body, for being inserted in this assembly hole, make this pressing piece be arranged at this keying body.

5. the casing structure of electronic installation according to claim 1 is characterized in that, this housing has a plurality of jacks, and this support portion of this keying body has a plurality of latches, is inserted in respectively in those jacks, makes this support portion be fixedly arranged on this housing.

6. the casing structure of electronic installation according to claim 1, it is characterized in that this housing has a plurality of locking holes, this circuit board has a plurality of open-works, wore those open-works respectively and be attached to those locking holes by a plurality of locked assemblies, and made this circuit board be fixedly arranged on this housing.

7. the casing structure of electronic installation according to claim 1, it is characterized in that wherein this limit assembly of this pressing piece is a grab, for hook in this spacing hole wherein, this limit assembly of another of this pressing piece is a projection, for being inserted in another this spacing hole.

8. the casing structure of electronic installation according to claim 7 is characterized in that, the direction that is provided with of this grab parallels with this displacement stroke direction of this button portion, and this displacement stroke direction that direction and this button portion are set of this projection is perpendicular.