CN2379973Y

CN2379973Y - Keyboard device

Info

Publication number: CN2379973Y
Application number: CN 99236286
Authority: CN
Inventors: 么焕明
Original assignee: FUJIN PRECISION INDUSTRY (SHENZHEN) CO LTD; Hon Hai Precision Industry Co Ltd
Current assignee: FUJIN PRECISION INDUSTRY (SHENZHEN) CO LTD; Hon Hai Precision Industry Co Ltd
Priority date: 1999-06-07
Filing date: 1999-06-07
Publication date: 2000-05-24
Anticipated expiration: 2009-06-07

Abstract

The utility model relates to a keyboard device, which mainly comprises a base board, a circuit film, a plurality of elastic bodies, a plurality of support stands, a plurality of key caps, etc., wherein, the circuit film adopts a multilayer structure, and each layer of the circuit film is provided with circuits, circuit joints and perforations. Glue is printed at the peripheries of the circuit joints, the perforations and a layer of the circuit film, wherein, the circuit joints, the perforations and the layer of the circuit film are on one of every two layers of the corresponding circuit film. After each of the layers of the circuit film are attached together, the glue plays an isolating role to isolate the circuit joints on every two layers of the circuit film and seal the peripheries of circuits, so that a waterproof and dustproof function is realized.

Description

Key board unit

The utility model refers to especially that about a kind of key board unit a kind of water proof and dust proof is good, and can the minimizing group immediately between and reduce the key board unit of manufacturing cost.

The prior art key board unit as shown in Figures 1 and 2, it includes base plate 100, circuit film 102, elastomer 104, bracing frame 106, and keycap 108 etc.This base plate 100 in position locates to convex with the pivoted body 110 of paired configuration.And this circuit film 102 is located on the base plate 100, includes upper strata circuit film 102A, wall 102C and lower circuit film 102B.In addition, pivoted body 110 places corresponding to base plate 100 are provided with perforation 116 on the circuit film 102 of this stacked one.As shown in Figure 2, will be between this upper strata circuit film 102A and lower circuit film 102B according to decide to install at interval wall 102C, and be printed with circuit 112, and relative circuit junction 102D, 102E on upper strata circuit film 102A and the lower circuit film 102B, and this wall 102C to should circuit junction 102D and the 102E place be provided with perforate 114.

This elastomer 104 is located on the lamellar body 118 and whole top that is positioned at circuit film 102, its inner face top is provided with salient point (figure does not show), when elastomer 104 was subjected to pushing, salient point was down moved and the circuit junction 102D that makes upper strata circuit film 102A and the circuit junction 102E of lower circuit film 102B produce and contact and form path.In addition, be provided with perforate 120 corresponding to perforation 116 places on this lamellar body 118, pass for pivoted body 110.

This bracing frame 106 is to intersect the ground joggle that can reverse by the first start frame 122 and the second start frame 124 to form, and an end of this first start frame 122 and the second start frame 124 outwards convexes with axis body 126 respectively, in order to be connected in the keycap 108, and the other end of the first start frame 122 and the second start frame 124 and the outside respectively axis body 128 that forms can be articulated with the pivoted body 110 that passes circuit film 102 and lamellar body 118.This keycap 108 is incorporated into the axis body 126 of bracing frame 106 respectively, and is supported by elastomer 104, holds above-mentionedly, when pressing down keycap 108, can make the circuit junction conducting on the circuit film 102.

With regard to this kind key board unit, when the pivoted body 110 of bracing frame 106 and base plate 100 is connected and fixed, pivoted body 110 must pass perforation 116 on the circuit film 102 and the perforate 120 on the lamellar body 118, so easily by dirt thing or soft flocks from above-mentioned perforate 120 and bore a hole and 116 fall in stacked composition of circuit film 102, this will cause the sinking operation of upper strata circuit film 102A to have some setbacks, and the contact effect of circuit junction 102D, the 102E of this circuit film 102 is lowered, even the phenomenon of the displacement that can have point of contact.And three layers of circuit film of this key board unit are stackedly in regular turn to be fixed by the hot melt contact, be all open space around this hot melt contact,, just can cause circuit film to be subjected to cargo sweat if when having moisture etc. to enter in the keyboard, even can produce short circuit, and then cause keyboard to produce fault.

The purpose of this utility model is to provide a kind of key board unit, and this key board unit utilizes the upper and lower relatively layer of colloid bonding circuit film to be integral the effect of can reach waterproof and dustproof, saving manufactured materials and being easy to assemble.

The technical solution of the utility model is: it mainly comprises base plate, circuit film, the plurality of elastic body, some bracing frames and several keycaps etc., wherein this circuit film is a sandwich construction, on each layer circuit film, be provided with circuit, circuit junction and perforation, and be printed with colloid on wherein one deck of two corresponding circuits thin layers, this colloid tool suitable thickness, after each layer circuit film fitted, can intercept the circuit junction between the corresponding circuits thin layer, and surround the circuit and the perforated edge of circuit film layer, can avoid moisture or dirt thing to enter, and reach the demand of water proof and dust proof.

Pass through technique scheme, the utility model replaces the setting of traditional wall to save the mold materials expense with the printing colloid, and raising is made and the competitiveness of cost, and this colloid is to the circuit on the circuit film layer, circuit junction and whole all genesis sealing process, can prevent that moisture and foreign material from entering in the circuit region, to guarantee the good running of circuit region.

With reference to the accompanying drawings, in conjunction with the embodiments the utility model is further described.

Fig. 1 is the three-dimensional exploded view of prior art key board unit.

Fig. 2 is the partial sectional view of prior art key board unit.

Fig. 3 is a three-dimensional exploded view of the present utility model.

Fig. 4 is the utility model circuit film and base plate and the back partial sectional view along the IV-IV line of lamellar body assembling.

Fig. 5 is the utility model circuit film and base plate and back another partial sectional view along the V-V line of lamellar body assembling.

See also Fig. 3, Fig. 4 and Fig. 5, present embodiment key board unit 1 mainly includes base plate 10, circuit film 12, plurality of elastic body 14, some bracing frames 16 and several keycaps 18, wherein this base plate 10 is a planar metal plate, it in position is provided with the

pivoted body

20,21 of paired configuration to upper punch, this

pivoted body

20,21 also is respectively equipped with sliding eye 24 and pivoted hole 22, articulates wherein for bracing frame 16.This circuit film 12 can be multi-layer film structure and is equipped on the base plate 10, it is the double-layer films structure in the present embodiment, promptly constitute by upper strata circuit film 12A and lower circuit film 12B, this upper strata circuit film 12A and lower circuit film 12B are provided with

relative circuit junction

12D and 12C, turning circuit 12E during in order to contact, and upper strata circuit film 12A and lower circuit film 12B go up and be respectively equipped with corresponding perforation 30 and 31.When upper strata circuit film 12A and lower circuit film 12B group are folded one, print around shape colloid 26 at the circuit junction 12C of lower circuit film 12B periphery earlier, and establish the colloid 27 of sealing at the circuit film 12B side periphery and 31 peripheries of boring a hole, 28, wherein this colloid 26 has suitable thickness and can separate

circuit junction

12D and 12C between

levels circuit film

12A and 12B, and this

colloid

27,28 also can seal the perforation 30 of sticking folded upper strata circuit film 12A and lower circuit film 12B, 31 peripheries, make circuit 12E and

circuit junction

12C, 12D is positioned at the enclosed area, and fully and the external world be isolated.

Plurality of elastic body 14 is located on the lamellar body 32, and this lamellar body 32 is with respect to perforation 30,31 and be provided with a perforate 34.Elastomer 14 correspondences are located on each circuit junction of circuit film 12, its top is a hollow cylinder, and it is horn-like that the below is, and the face top is provided with a salient point (figure does not show) within it, when pushing, this salient point is pressed circuit junction 12D and the 12C and form path of below on the circuit film 12.

This bracing frame 16 is to intersect the ground joggle that can reverse by the first start frame 36 and the second start frame 38 to form, this the first start frame 36 and the second start frame 38 at one end outwards convex with the slightly little axis body of

external diameter

40 and 42 respectively, this

axis body

40 and 42 can be articulated with the

pivoted body

20,21 that passes lamellar body 32 and circuit film 12 respectively, and stretch in the pivoted hole 22 of the sliding eye 24 of pivoted body 20 and pivoted body 21, and this first start frame 36 and the second start frame 38 outwards convex with the big slightly axis body of

external diameter

44 and 46 respectively at the other end, in order to be articulated in the keycap 18.

And this keycap 18 is combined in respectively on the bracing frame 16, and supported by elastomer 14, when pressing down keycap 18, the axis body 40 that bracing frame 16 is positioned at sliding eye 24 slides along this sliding eye 24, make elastomer 14 press down

circuit junction

12D and 12C on the circuit film 12, thereby produce circuit turn-on.

According to above-mentioned, the circuit film 12 of this key board unit 1 prints colloid 26,27 and 28 on lower circuit film 12B, these colloid 26 tool compartmentations can be separated the circuit junction between upper strata circuit film 12A and lower circuit film 12B, thereby the setting that replaces traditional wall is with saving mold materials expense, and raising is made and the competitiveness of cost.Moreover, but this colloid 27,28 tight bond upper strata circuit film 12A and lower circuit film 12B, and to the circuit on it, circuit junction and whole all genesis sealing process, can prevent that moisture and foreign material from entering in the circuit region from the periphery or the perforation of circuit film 12, to guarantee the good running of circuit region.In addition, utilize this

colloid

26,27 and 28 bonding upper strata circuit film 12A and lower circuit film 12B, but circuit film 12 one are installed on the base plate 10,, operate more simple and easy so be convenient to assembling.

Claims

1. key board unit, the pivoted body that comprises the base plate which is provided with some paired pivoted bodies, circuit film, some elastomers that is positioned at the circuit film top, some and base plate mutually joggle bracing frame, somely combine with bracing frame and be the keycap that elastomer supported, it is characterized in that: this circuit film is that the multilayer circuit film layer structure is located on the base plate, which is provided with the perforation that the pivoted body for base plate passes through, and in position be printed with circuit and interlock circuit contact; One colloid, this colloid are printed on the circuit film layer, the built-up circuit film in order to the circuit film layer of the correspondence that bonds.

2. key board unit as claimed in claim 1 is characterized in that: this colloid is printed on wherein one deck of two relative circuit film layers at least.

3. key board unit as claimed in claim 2 is characterized in that: this colloid is printed near the circuit junction of circuit film layer, its tool suitable thickness and can make circuit junction form the separation state.

4. key board unit as claimed in claim 2 is characterized in that: this colloid is printed on the perforation periphery of circuit film layer, makes relative circuit film layer bonding back form barrier structure in perforation place.

5. key board unit as claimed in claim 2 is characterized in that: this colloid is printed in circuit film layer periphery, and forms an enclosure space.

6. key board unit as claimed in claim 1 is characterized in that: the paired pivoted body of this base plate is provided with sliding eye or pivoted hole.

7. key board unit as claimed in claim 1 is characterized in that: this elastomer is to be located on the lamellar body, and is provided with perforate on this lamellar body.

8. key board unit as claimed in claim 1 is characterized in that: this bracing frame is to be formed by the first start frame and second start frame intersection joggle.

9. key board unit as claimed in claim 8 is characterized in that: the first start frame and the second start frame of this bracing frame are respectively equipped with corresponding axis body.