CN1858873A - Thinning keyboard press button structure - Google Patents

Thinning keyboard press button structure Download PDF

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Publication number
CN1858873A
CN1858873A CN 200510070153 CN200510070153A CN1858873A CN 1858873 A CN1858873 A CN 1858873A CN 200510070153 CN200510070153 CN 200510070153 CN 200510070153 A CN200510070153 A CN 200510070153A CN 1858873 A CN1858873 A CN 1858873A
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China
Prior art keywords
substrate
end points
electrical contact
press button
button structure
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CN 200510070153
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Chinese (zh)
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CN100437865C (en
Inventor
陈其宏
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Asustek Computer Inc
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Asustek Computer Inc
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Priority to CNB2005100701534A priority Critical patent/CN100437865C/en
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Abstract

This invention relates to a thin key structure including: a base plate, a flexible circuit layer and a key cap, in which, the base plate includes a first part, a base plate amd a second part and one of the two parts is projected over the base to form a specific angle wit hthe base, the first part has a first end point, the second has a second end point aligned to each other and kept in a distance, the flexible circuit layer includes a first electric connecting point fixed on the first end point and a second connedcting point fixed on the second end point and the key cap is set on the base plate having a connecting part connecting one of the two parts.

Description

Thinning keyboard press button structure
[technical field]
The invention relates to a kind of keyboard press button structure of information electronic product, and particularly a kind of keyboard press button structure of thin typeization.
[prior art]
Information electronic product and equipment, for example: telephone set, computer, PC, notebook computer, personal digital assistance (PDA), mobile phone generally all must be by the input program of operation keyboard button to instruct when carrying out functional operation.Therefore keyboard is one of the very important operating means of electric appliance and electronic product.
Please refer to Fig. 1, Fig. 1 system is according to the structural representation of the press structure of a kind of keyboard that known techniques illustrated.The keyboard that present electronics information product is commonly used is provided with a press structure mostly below button, wherein press structure comprises block flexible member 101, upper strata flexible PCB 103, central strip sheet 105 and lower floor's flexible PCB 107.Wherein, central strip sheet 105 separates each other upper strata flexible PCB 103 and lower floor's flexible PCB 107.And being positioned at circuit on upper strata flexible PCB 103 and the lower floor's flexible PCB 107, the button relative position is provided with contact 109a and 109b; Central strip sheet 105 is provided with through hole 105a between 109a and 109b.Flexible member 101 cordings have the rubber block of projection 101a in addition, be positioned at this relative position below of button, when button pressed, the contact 109a of the projection 101a pushing and pressing upper strata flexible PCB 103 of pushing flexible member 101 is through the through hole 105a of central strip sheet 105, form electrical the contact with the contact 109b of lower floor flexible PCB 107, use input signal.
Please refer to Fig. 2, Fig. 2 system is according to the structural representation of a kind of keyboard that known techniques illustrated.In known keyboard, also have a scissor or bridge formation shape supporting construction between keycap 200 and flexible member 201, first supporting bracket 213 for example, and second supporting bracket 215 is used for linking keycap 200 and relative pressing structure.
Yet above-described multi-level key structure, not only part and material cost height, and assembling inconvenience add that button must have certain thickness, and do not meet present consumer to the compact expectation of electronics information product.
Therefore having to provide a kind of assembling easy, the thinning keyboard press button that the part demand is less.
[summary of the invention]
Therefore purpose of the present invention is providing a kind of thinning keyboard press button exactly, has the easy and less advantage of part demand of assembling, to meet the compact demand of electronics information product.
In preferred embodiment of the present invention, thinning keyboard press button structure comprises at least: substrate, flexible circuit layer and keycap.Substrate comprises first, substrate and second portion at least, first is with respect to second portion, and first partly be connected to substrate with second portion, wherein first and second portion the two at least one, protrude in this substrate, and press from both sides an angle with substrate.First partly has first end points, second partly has second end points, first end points and second end points system aims at mutually, and a specific range is apart arranged, and first and second portion the two at least one are can produce deformation and first end points is contacted with second end points.Flexible circuit layer comprises that at least first electrical contact is fixed on first end points, and second electrical contact is fixed on second end points, and when first end points contacted with second end points, this second electrical contact of first electrical contact also formed electrical contact.Keycap is positioned on the substrate, has at least one connecting portion, be linked to protrude in substrate first partly and second portion the two at least one.
Make these a few connecting portions stressed when pushing keycap, pushing protrudes in first part and the two at least one generation deformation of second portion of substrate, uses making first electrical contact form electrical the contact with second electrical contact;
When discharging keycap, by the deformation potential energy of substrate, make first partly and the two at least one homing of second portion, and cut off first electrical contact and second electrical contact between electrically connect.
According to above-described technical advantage, preferred embodiment of the present invention is to utilize the deformation potential energy of substrate to replace the flexible member of known techniques, save the supporting construction that known techniques is used for fixing flexible member, and flexible PCB is integrated into one deck circuit layer up and down.Not only save the use of part, and keyboard thin typeization in addition can be able to be reached above-described goal of the invention really.
[description of drawings]
By preferred embodiment of the present invention and the following appended graphic theory of cooperation, when more understanding purpose of the present invention, feature, advantage and technical advantage, what matter must be noted is that for the purpose of expressing, below diagram is not illustrated according to engineer's scale.
Fig. 1 system is according to the structural representation of the press structure of a kind of keyboard that known techniques illustrated.
Fig. 2 system is according to the structural representation of a kind of keyboard that known techniques illustrated.
A kind of keyboard press button structure schematic diagram that Fig. 3 a and Fig. 3 b system paint according to the present invention's first preferred embodiment.
A kind of keyboard press button structure schematic diagram that Fig. 4 a and Fig. 4 b system paint according to the present invention's second preferred embodiment.
A kind of keyboard press button structure schematic diagram that Fig. 5 a and Fig. 5 b system paint according to the present invention's the 3rd preferred embodiment.
[embodiment]
State with other purposes, feature and advantage and can become apparent on the present invention for allowing, a preferred embodiment cited below particularly, and cooperate appended graphicly, be described in detail below:
Please refer to Fig. 3 a and Fig. 3 b, a kind of keyboard press button structure schematic diagram that Fig. 3 a and Fig. 3 b system paint according to the present invention's first preferred embodiment.
Among first preferred embodiment of the present invention, thinning keyboard press button structure comprises at least: substrate 302, flexible circuit layer 304 and keycap 300.
Substrate 302 is by rubber-like sheet metal nonmetal plate, and for example the combination in any of iron plate, aluminium sheet, plasticized board, semiconductor sheet material or above-mentioned sheet material is formed.Among present embodiment, substrate 302 is an aluminum plate material.
Substrate 302 comprises the 302a of first, second portion 302b and substrate 302c at least, the 302a of first is with respect to second portion 302b, and the first part 302a and second portion 302b are connected to substrate 302c, wherein 302a of first and second portion 302b the two at least one protrude in this substrate 302c.Among present embodiment, 302a of first and second portion 302b all protrude on the substrate 302c, and are not equal to 90 angles of spending with one on substrate 302c folder, for example 120 degree angles.302a of first and second portion 302b have essence be 0.3mm thickness.
The first part 302a has the first end points 306a, the second part 302b has the second end points 306b, and the first end points 306a aims at mutually with second end points 306b system, and the first end points 306a and the second end points 306b have a specific range apart, be not connected to each other each other, 306a of first and second portion 306b the two at least one can produce deformation and the first end points 306a is contacted with the second end points 306b.
Flexible circuit layer 304, be positioned on the substrate 302, at least comprise that the first electrical contact 308a fixes on the first end points 306a, and second electrical contact 308b be fixed on the second end points 306b, when the first end points 306a contacted with the second end points 306b, this second electrical contact of first electrical contact 308a 308b also formed electrical contact.Among some embodiments of the present invention, flexible circuit layer 304 is the thin film line layer of coating on the substrate 302.Among other embodiment of the present invention, flexible circuit layer 304 is a flexible PCB that is positioned on the substrate 302; The first electrical contact 308a and second electrical contact 308b system are made of two metal salient points.
Keycap 300 is positioned on substrate 302 and the flexible circuit layer 304, has at least one connecting portion, and for example 310a and 310b are fixed on symmetrically by retaining element 312 and protrude in first on the substrate 302 partly on 302a and the second portion 302b.Among present embodiment, the equal in length of the length of connecting portion 310a and connecting portion 310b.
Please refer to Fig. 3 b, keycap 300 connecting portion 310a and 310b are stressed when pushing, and pushing protrudes in first partly 302a and the second portion 302b generation deformation of substrate, uses making the first electrical contact 308a form electrical the contact with the second electrical contact 308b.
When discharging keycap 300, by the deformation potential energy of substrate 302, make first partly 302a and second 302b homing, and cut off the first electrical contact 308a and the second electrical contact 308b between electrically connect (illustrating) as Fig. 3 a.
Please refer to Fig. 4 a and Fig. 4 b, a kind of keyboard press button structure schematic diagram that Fig. 4 a and Fig. 4 b system paint according to the present invention's second preferred embodiment.
Among the figure, the structure of second preferred embodiment and first preferred embodiment are similar, and difference of them only is that the configuration mode of the first of substrate and second portion is different.
Among second preferred embodiment of the present invention, thinning keyboard press button structure comprises at least: substrate 402, flexible circuit layer 404 and keycap 400.
Substrate 402 is by rubber-like sheet metal nonmetal plate, and for example the combination in any of iron plate, aluminium sheet, plasticized board, semiconductor sheet material or above-mentioned sheet material is formed.Among present embodiment, substrate 402 is an aluminum plate material.
Substrate 402 comprises the 402a of first, second portion 402b and substrate 402c at least, the 402a of first is with respect to second portion 402b, and the first part 402a and second portion 402b are connected to substrate 402c, wherein 402a of first and second portion 402b the two at least one protrude in this substrate 402c.Among present embodiment, 402a of first and second portion 402b all protrude on the 402c, and the 402a of first and one first angle of substrate 402c folder, and for example 120 spend, second portion 402b and one second angle of substrate 402c folder, for example 110 degree.402a of first and second portion 402b have essence be 0.3mm thickness.
The first part 402a has the first end points 406a, the second part 402b has the second end points 406b, and the first end points 406a aims at mutually with second end points 406b system, and the first end points 406a and the second end points 406b have a specific range apart, be not connected to each other each other, 402a of first and second portion 402b the two at least one can produce deformation and the first end points 406a is contacted with the second end points 406b.
Flexible circuit layer 404 comprises that at least the first electrical contact 408a fixes on the first end points 406a, and second electrical contact 408b be fixed on the second end points 406b, when the first end points 406a contacted with the second end points 406b, this second electrical contact of first electrical contact 408a 408b also formed electrical contact.Among some embodiments of the present invention, flexible circuit layer 404 is the thin film line layer of coating on the substrate 402.Among other embodiment of the present invention, flexible circuit layer 404 is a flexible PCB that is positioned on the substrate 402; The first electrical contact 408a and second electrical contact 408b system are made of two metal salient points.
Keycap 400 is positioned on the substrate 402, has at least one connecting portion, and for example 410a and 410b are fixed on by retaining element 412 and protrude in first on the substrate 402 partly on 402a and the second portion 402b.Among present embodiment, connecting portion 410a and connecting portion 410b are also asymmetric.
Please refer to Fig. 4 b, keycap 400 connecting portion 410a and 410b are stressed when pushing, and pushing protrudes in first partly 402a and the second portion 402b generation deformation of substrate, uses making the first electrical contact 408a form electrical the contact with the second electrical contact 408b.
When discharging keycap 400, by the deformation potential energy of substrate 402, make first partly 402a and second 402b homing, and cut off the first electrical contact 408a and the second electrical contact 408b between electrically connect (illustrating) as Fig. 4 a.
Please refer to Fig. 5 a and Fig. 5 b, a kind of keyboard press button structure schematic diagram that Fig. 5 a and Fig. 5 b system paint according to the present invention's the 3rd preferred embodiment.
Among the figure, the structure of the 3rd preferred embodiment and first preferred embodiment are similar, and difference of them only is that the configuration mode of the first of substrate and second portion is different.
Among the 3rd preferred embodiment of the present invention, thinning keyboard press button structure comprises at least: substrate 502, flexible circuit layer 504 and keycap 500.
Substrate 502 is rubber-like sheet metal or nonmetal plate, and for example the combination in any of iron plate, aluminium sheet, plasticized board, semiconductor sheet material or above-mentioned sheet material is formed.Among present embodiment, substrate 502 is an aluminum plate material.
Substrate 502 comprises the 502a of first, second portion 502b and substrate 502c at least, the 402a of first is with respect to second portion 502b, and the first part 502a and second portion 502b are connected to substrate 502c, wherein 502a of first and second portion 502b the two at least one protrude in this substrate 502c.Among present embodiment, only the 502a of first protrudes on this substrate 502, and the 502a of first and this substrate 502c press from both sides first angle, 120 degree for example, second portion 502b and this substrate 502c copline.The 502a of first have essence be 0.3mm thickness.
The first part 502a has the first end points 506a, the second part 502b has the second end points 506b, and the first end points 506a aims at mutually with the second end points 506b, and the first end points 506a and the second end points 506b have a specific range apart, be not connected to each other, 502a of first and second portion 502b the two at least one can produce deformation and the first end points 506a is contacted with the second end points 506b.
Flexible circuit layer 504 comprises that at least the first electrical contact 508a fixes on the first end points 506a, and second electrical contact 508b be fixed on the second end points 506b, when the first end points 506a contacted with the second end points 506b, this second electrical contact of first electrical contact 508a 508b also formed electrical contact.Among some embodiments of the present invention, flexible circuit layer 504 is the thin film line layer of coating on the substrate 502.Among other embodiment of the present invention, flexible circuit layer 504 is a flexible PCB that is positioned on the substrate 502; The first electrical contact 508a and second electrical contact 508b system are made of two metal salient points.
Keycap 500 is positioned on the substrate 502, has at least one connecting portion, and for example 510, be fixed on by retaining element 512 and protrude in first on the substrate 502 partly on the 502a.
Please refer to Fig. 5 b, when pushing keycap 500 connecting portions 510, pushing protrudes in the first partly 502a generation deformation of substrate 502, uses making the first electrical contact 508a form electrical the contact with the second electrical contact 508b.
When discharging keycap 500, by the deformation potential energy of substrate 502, make the first 502a homing partly, and cut off the first electrical contact 508a and the second electrical contact 508b between electrically connect (illustrating) as Fig. 5 a.
According to above-mentioned specification as can be known, preferred embodiment of the present invention knows that technical characterictic is, use substrate, utilization protrudes in the deformation potential energy of the part of substrate surface, can homing after making that button pushes again, replaced the flexible member of known techniques, and with in the known techniques up and down flexible PCB be integrated into one deck circuit layer, not only save the supporting construction that known techniques is used for fixing flexible member, and can be with keyboard thin typeization in addition.
Therefore preferred embodiment of the present invention ties up to a kind of keyboard press button structure of saving cost of parts and thin typeization is provided, and can reach above-described goal of the invention really.
Though the present invention discloses as above with a 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 (13)

1. thinning keyboard press button structure comprises at least:
One substrate, at least comprise a substrate, a first and a second portion, this first part is connected to this substrate with this second portion, wherein this first protrudes in this substrate, and press from both sides one first angle with this substrate, this first part has one first end points, and this second part has one second end points, this second end points and interval one distance are aimed at by this first end points system, and this system of first can produce deformation and this first end points is contacted with this second end points;
One flexible circuit layer, have a preinstalled circuit and be overlying on this substrate, wherein this preinstalled circuit comprises one first electrical contact at least, be fixed in this first end points, and one second electrical contact, be fixed in this second end points, when this first end points contacted with this second end points, this first electrical contact also formed electrical the contact with this second electrical contact; And
One keycap is positioned on this substrate;
One first connecting portion, an end is linked to this keycap, and the other end is linked to this first part that protrudes in this substrate;
Make this first connecting portion stressed when pushing this keycap, pushing protrudes in this first part of this substrate with generation deformation, and makes this first electrical contact and this second electrical contact form electrical the contact;
When discharging this keycap, by disengaging the stored potential energy of this base plate deformation, make this first homing partly, and cut off this first electrical contact and this second electrical contact between electrically connect.
2. thinning keyboard press button structure according to claim 1 is characterized in that, this substrate system is selected from a group that is made up of iron plate, aluminium sheet, plasticized board, semiconductor sheet material and above-mentioned combination in any.
3. thinning keyboard press button structure according to claim 1 is characterized in that, this second portion system protrudes in this substrate and presss from both sides one second angle with this substrate, and this second portion system can produce deformation and this first end points is contacted with this second end points.
4. thinning keyboard press button structure according to claim 3 is characterized in that, this first angle and this second angle are that essence is 120 degree.
5. thinning keyboard press button structure according to claim 3 is characterized in that, this second portion has the thickness that essence is 0.3mm.
6. thinning keyboard press button structure according to claim 3, more comprise one second connecting portion, pushing this keycap can make this first connection not stressed with this second connecting portion, pushing protrude in this substrate this first partly and this second partly so that deformation to take place, and make this first electrical contact form electrical the contact with this second electrical contact.
7. thinning keyboard press button structure according to claim 3 is characterized in that, this first angle system is different from this second angle.
8. thinning keyboard press button structure according to claim 1 is characterized in that, this second portion and this substrate copline.
9. thinning keyboard press button structure according to claim 1 is characterized in that, this first has the thickness that essence is 0.3mm.
10. thinning keyboard press button structure according to claim 1 is characterized in that, these flexible circuit series of strata are coated a wiring thin film layer of this substrate.
11. thinning keyboard press button structure according to claim 1 is characterized in that, this flexible circuit series of strata one flexible PCB.
12. thinning keyboard press button structure according to claim 1 is characterized in that, this first electrical contact and this second electrical contact system are made of metal salient point.
13. thinning keyboard press button structure according to claim 1 is characterized in that, this at least one connecting portion is to be fixed on this substrate by a retaining element.
CNB2005100701534A 2005-04-30 2005-04-30 Thinning keyboard press button structure Active CN100437865C (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CNB2005100701534A CN100437865C (en) 2005-04-30 2005-04-30 Thinning keyboard press button structure

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CN1858873A true CN1858873A (en) 2006-11-08
CN100437865C CN100437865C (en) 2008-11-26

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102097240A (en) * 2011-01-04 2011-06-15 江苏传艺科技有限公司 Structure of notebook computer glowing keyboard
CN108021296A (en) * 2017-12-04 2018-05-11 广东格林精密部件股份有限公司 Integral intelligent surface structure function part and its manufacture method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2779604B2 (en) * 1994-12-19 1998-07-23 エスエムケイ株式会社 Key switch
JPH10269893A (en) * 1997-03-27 1998-10-09 Mitsubishi Electric Corp Integral type key top, and key input device and computer using it
JPH11260190A (en) * 1998-03-05 1999-09-24 Marusan Name:Kk Dome switch
JP4295468B2 (en) * 2001-12-21 2009-07-15 ポリマテック株式会社 Cover member for illuminated pushbutton switch
CN1530802A (en) * 2003-03-14 2004-09-22 阿尔卑斯电气株式会社 Key switch device and keyboard device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102097240A (en) * 2011-01-04 2011-06-15 江苏传艺科技有限公司 Structure of notebook computer glowing keyboard
CN108021296A (en) * 2017-12-04 2018-05-11 广东格林精密部件股份有限公司 Integral intelligent surface structure function part and its manufacture method

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