CN101572195B - Key module and portable electronic device therewith - Google Patents

Abstract

The invention provides a key module, which at least comprises a key; and the key comprises a keycap, a base, a support element, a resistance element and an elastic piece, wherein the base comprises a compression part and a bearing part connected with the compression part; the keycap is arranged on the compression part; the support element is arranged on the side of the bearing part of the base facing the keycap so as to support the keycap when the keycap is compressed; and the resistance element is arranged between the compression part and the elastic piece to make the elastic piece electrically connected to a circuit board. In the key module, by utilizing the height difference of the compression part and the bearing part of the base, the support element is arranged on the bearing part, and the components are arranged by fully utilizing gaps originally required between keys, so the integral thickness of the key module and an electronic device applying the key module is effectively reduced.

Description

The portable electron device of this button module of button module and tool

Technical field

The present invention relates to the electronic installation of a kind of button module and this button module of application.

Background technology

See also Fig. 1, existing button module comprises a plurality of press-key structures 10, and wherein each press-key structure 10 comprises abutton 12, aconvex base 14, astrutting piece 16, a supportingpiece 20 and a shell fragment 22.Has a protuberance on this convex base 14.This supportingpiece 20 is arranged on 14 of thisshell fragment 22 and this bases, thisbase 14 is in order to carryingconfiguration button 12 thereon, when the user pressed thisbutton 12, this supportingpiece 20 put on the strength of thisbase 14 in order to concentrated user, and further presses down thisshell fragment 22.

When this press-key structure 10 was applied to electronic installation (not shown) such as mobile phone, personal digital assistant, this press-key structure 10 was to be fixed on the circuit board of this electronic installation, and made describedshell fragment 22 and the corresponding setting of switch element on this circuit board.

Yet, in order to provide this press-key structure 10 better operation, existing press-key structure 10 respectively arranges thestrutting piece 16 of this base the last 14 of hardness in the two ends of thisbase 14, when the user applies strength and causes thisbase 14 to produce deformation in thisbase 14, this strutting piece then can be brought into play the function that supports thisbutton 12 16 this moments, and thisstrutting piece 16 then is thestart space 18 of thisbutton 12 to the vertical range of this button 12.Thisstart space 18 needs certain height, to realize the operation to shell fragment 22.As from the foregoing, for thestart space 18 of thisbutton 12 is provided, existing press-key structure 10 must adopt thisconvex base 14, yet need again in the both sides of thisconvex base 14configuration strutting piece 16 in order to makebutton 12 have better operation, because the existence of strutting piece, it has taken the certain space instart space 18, for required start space is provided, the protuberance of convexbase 14 need increase certain altitude again, and therefore the integral thickness of this press-key structure 10 also can't dwindle.Thereby, adopt the electronic installation of this press-key structure 10 also can't satisfy light and thin to electronic installation now requirement.

Summary of the invention

In view of above shortcoming, be necessary to provide a kind of button module that reduces thickness.

In addition, also be necessary to provide a kind of electronic installation of using above-mentioned button module.

A kind of button module, this button module comprises a button at least, this button comprises a keycap, one base, one strutting piece, one supporting piece and a shell fragment, this base comprises a compression zone and a supporting part that links to each other with this compression zone, wherein this keycap is arranged on this compression zone, this strutting piece is arranged on the supporting part of this base towards a side of keycap, so that during this keycap pressurized in order to support this keycap, this supporting piece is arranged between this compression zone and shell fragment so that this shell fragment is electrically connected to a circuit board, described base also comprises a junction, described supporting part links to each other with described compression zone with an angle of inclination by described connecting portion, and then between described keycap and strutting piece, form a start space, in this start space, move down when the pressurized for this keycap, by adjusting the angle between described connecting portion and described compression zone and the described supporting part, and then adjust the size in described start space.

A kind of electronic installation, it comprises a circuit board and a button module, be provided with a plurality of switch elements on this circuit board, this button module comprises a button at least, this button comprises a keycap, one base, one strutting piece, one supporting piece and a shell fragment, it is characterized in that: this base comprises a compression zone and a supporting part that links to each other with this compression zone, wherein this keycap is arranged on this compression zone, this strutting piece is arranged on the supporting part of this base towards a side of keycap, so that during this keycap pressurized in order to support this keycap, this supporting piece is arranged between this compression zone and shell fragment so that this shell fragment is opened switch element corresponding on this circuit board, described base also comprises a junction, described supporting part links to each other with described compression zone with an angle of inclination by described connecting portion, and then between described keycap and strutting piece, form a start space, in this start space, move down when the pressurized for this keycap, by adjusting the angle between described connecting portion and described compression zone and the described supporting part, and then adjust the size in described start space.

The present invention utilizes the difference in height of compression zone and the supporting part of base, strutting piece is arranged on this supporting part, take full advantage of the space that originally just needed between button and dispose these assemblies, effectively reduce the integral thickness of the electronic installation of this button module and this button module of application.

Description of drawings

Fig. 1 is the schematic diagram of existing button module;

Fig. 2 is the schematic diagram of the button module of preferred embodiments of the present invention.

Embodiment

The button module of preferred embodiments of the present invention is illustrated as example to be applied in mobile phone.This button module comprises a plurality of buttons 30, sees also shown in Figure 2ly, and each button 30 comprises: akeycap 32, a base 34, astrutting piece 36, a supportingpiece 40 and ashell fragment 42.

Thiskeycap 32 comprises afirst surface 32a and asecond surface 32b relative with it, and wherein thisfirst surface 32a is the press surface when using this button, and thissecond surface 32b is the surface towards this base 34.In the present embodiment, the surface of thiskeycap 32 is roughly rectangular, but in other embodiments, then different shapes can be arranged.

This base 34 comprises acompression zone 341, a supportingpart 342 and a junction 343.This supportingpart 342 is to link to each other with thiscompression zone 341 with certain angle of inclination by this connectingportion 343, and wherein thiscompression zone 341 is in order to carrying thiskeycap 32, and this supportingpart 342 is arranged on thecircuit board 44.

Thiscompression zone 341 comprises afirst surface 341a and asecond surface 341b relative with thisfirst surface 341a, and wherein thesecond surface 32b of thisfirst surface 341a and thiskeycap 32 is adjacent.In the present embodiment, thisfirst surface 341a engages with thesecond surface 32b of thiskeycap 32 by a glue-line 46.And thesecond surface 341b of thiscompression zone 341 engages with this supportingpiece 40.

This supportingpart 342 comprises afirst surface 342a and asecond surface 342b, and wherein thissecond surface 342b directly engages with thiscircuit board 44.

Angle between this connectingportion 343 and this supportingpart 342 and thiscompression zone 341 is approximately 120 degree.Be understandable that this connectingportion 343 can be adjusted according to neededstart space 38 with the angle of thiscompression zone 341 and this supportingpart 342.

Thisstrutting piece 36 is arranged on thefirst surface 342a of the supportingpart 342 of this base 34, and wherein astart space 38 is formed between thisstrutting piece 36 and thiskeycap 32, and when the pressurized, thiskeycap 32 can move down in thisstart space 38 for thiskeycap 32.

This supportingpiece 40 is arranged between thecompression zone 341 and thisshell fragment 42 of this base 34, and wherein the upper surface of this supportingpiece 40 is to engage by mode bonding such as viscose glue or that double faced adhesive tape is bonding with thesecond surface 341b of this compression zone 341.In other embodiments, this supportingpiece 40 can be designed to base 34 integrally formed.In addition, in the present embodiment, this supportingpiece 40 is to be made by the working of plastics of an essentially rectangular, but in other embodiments, then different shapes can be arranged.

The size of this supportingpiece 40 is less than thiskeycap 32, and therefore, whenkeycap 32 was pressed downwards by external force, this supportingpiece 40 can be concentrated suffered external force, further to push theshell fragment 42 that arranges thereunder downwards.

Thisshell fragment 42 is to have certain flexible metal clips, it is such as stainless steel, the metals such as copper are made, it disposes corresponding to the switch element on thiscircuit board 44, when thiskeycap 32 pressurized, the compression zone 34 of this base and this supportingpiece 40 are further oppressed thisshell fragment 42 to open switch element corresponding on thiscircuit board 44.

When this button module is applied to electronic installation (not shown) such as mobile phone, personal digital assistant, this button module is fixed on thecircuit board 44 of this electronic installation, and makes the corresponding setting of switch element (not shown) on describedmetal clips 42 and thiscircuit board 44.

When using this button module, press thekeycap 32 of this button 30 by direction shown in Fig. 2 arrow, thiskeycap 32 further drives its this supportingpiece 40 ofcorresponding compression zone 341 ejections, thereby make this supportingpiece 40 press corresponding describedmetal clips 42, realize that finally the switch element on thiscircuit board 44 is opened or closed.That is to say that when pressing this button 30 according to direction shown in Fig. 2 arrow, the describedshell fragment 42 corresponding with this button 30 will be by direction generation strain shown in Fig. 2 arrow.

Electronic installation according to button module of the present invention and application button module of the present invention, have the following advantages, namely, utilize the difference in height ofcompression zone 341 and the supportingpart 342 of base 34,strutting piece 36 is arranged on this supportingpart 342, required start space not only can be provided, simultaneously can avoid again thisstrutting piece 36 to take this start space, take full advantage of 30 original spaces that just need of button and dispose these assemblies, the integral thickness that just can realize thus reducing this button module and use the electronic installation of this button module.

Claims (8)

1. button module, this button module comprises a button at least, this button comprises a keycap, a base, a strutting piece, a supporting piece and a shell fragment, it is characterized in that: this base comprises a compression zone and a supporting part that links to each other with this compression zone, and wherein this keycap is arranged on this compression zone; This strutting piece is arranged on the supporting part of this base towards a side of keycap so that during this keycap pressurized in order to support this keycap; This supporting piece is arranged between this compression zone and shell fragment so that this shell fragment is electrically connected to a circuit board, described base also comprises a junction, described supporting part links to each other with described compression zone with an angle of inclination by described connecting portion, and then between described keycap and strutting piece, form a start space, in this start space, move down when the pressurized for this keycap, by adjusting the angle between described connecting portion and described compression zone and the described supporting part, and then adjust the size in described start space.

2. button module as claimed in claim 1, it is characterized in that: this supporting part is arranged on this circuit board.

3. button module as claimed in claim 1, it is characterized in that: this compression zone comprises a first surface and a second surface relative with this first surface, and this first surface is to engage by a glue-line with this keycap, and this second surface engages with this supporting piece.

4. button module as claimed in claim 1 is characterized in that: the juncture of this supporting piece and this base be that viscose glue is bonding, double faced adhesive tape is bonding or one-body molded in any.

5. button module as claimed in claim 1, it is characterized in that: the juncture of this strutting piece and this base is that viscose glue is bonding or double faced adhesive tape is bonding.

6. electronic installation, it comprises a circuit board and a button module, be provided with a plurality of switch elements on this circuit board, this button module comprises a button at least, this button comprises a keycap, a base, a strutting piece, a supporting piece and a shell fragment, it is characterized in that: this base comprises a compression zone and a supporting part that links to each other with this compression zone, and wherein this keycap is arranged on this compression zone; This strutting piece is arranged on the supporting part of this base towards a side of keycap so that during this keycap pressurized in order to support this keycap; This supporting piece is arranged between this compression zone and shell fragment so that this shell fragment is opened switch element corresponding on this circuit board; Described base also comprises a junction, described supporting part links to each other with described compression zone with an angle of inclination by described connecting portion, and then between described keycap and strutting piece, form a start space, in this start space, move down when the pressurized for this keycap, by adjusting the angle between described connecting portion and described compression zone and the described supporting part, and then adjust the size in described start space.

7. electronic installation as claimed in claim 6, it is characterized in that: this supporting part is arranged on this circuit board.

8. electronic installation as claimed in claim 6, it is characterized in that: this compression zone comprises a first surface and a second surface relative with this first surface, and this first surface is to engage by a glue-line with this keycap, and this second surface engages with this supporting piece.

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