CN204117913U

CN204117913U - A kind of Novel keyboard structure

Info

Publication number: CN204117913U
Application number: CN201320398372.5U
Authority: CN
Inventors: 杨忠军
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-07-04
Filing date: 2013-07-04
Publication date: 2015-01-21
Anticipated expiration: 2023-07-04

Abstract

The utility model relates to terminal equipment input unit technical field, especially a kind of Novel keyboard structure.It comprises the keyboard case combined by upper cover and lower cover, keyboard case covers and is provided with several keycap, several key switch be connected with keycap is provided with in keyboard case, plate in a location is provided with in keyboard case, in location, plate is provided with several slide guide well for locating key switch, the main part of key switch and the upper cover of keyboard case are isolated by slide guide well.The utility model has used for reference the design feature that traditional integral formula mechanical switch has good dust-proof effect, coordinate slide guide well the main part of key switch to be isolated by key switch, prevent from affecting the wearing and tearing between keyboard service behaviour or aggravation parts because of dust and outside entering of foreign material; Meanwhile, the pusher of key switch, by carrying out knee-action in slide guide well, extends slide guide stroke, enhances button stability, have very strong practicality.

Description

A kind of Novel keyboard structure

Technical field

The utility model relates to terminal equipment input unit technical field, especially a kind of Novel keyboard structure.

Background technology

Traditional thin film type keyboard generally adopts keycap and presses down the version that push rod combines and (be generally and reduce costs, generally adopt keycap push rod integral structure), the silicone elastomer body that a similar left-hand thread is bowl-shape is set below push rod, salient point is provided with at the bosom of silicone elastomer body, by the strain of colloidal silica, the film circuit board of silica gel inner salient point compressing below is made to realize the UNICOM of keyboard circuit; Wherein, electric conducting material (being generally silver slurry or carbon slurry) is printed on plastic film by film circuit board exactly, be generally 3 slice structures, upper slice be positive pole, bottom sheet is negative pole, both positive and negative polarity separates by the middle characteristic utilizing plastic cement to insulate, and realizes contact conducting signal transmission under the effect of silicone elastomer body; Due to cheap and produce in a large number, but also there is obvious shortcoming in it, because structure is simple and easy to occur that push rod and slide guide well (are commonly called as " volcanic crater " for open type, oral area be circular, square or polygon not etc.) between slide guide stroke short, button poor stability, easily shake, consistent feel cannot be obtained; Therefore, run smooth and easy method of usually taking to smear silicone oil on the slide guide borehole wall to make push rod and strengthen lubrication, but this measure is very easy to attract dust adds open type design, exacerbate the wearing and tearing of push rod and slide guide well.

In addition, for saving cost, manufacturer adopts keycap push rod integral structure usually, also makes the material of push rod cannot reach anti abrasive needs, greatly reduces the useful life of keyboard.

Utility model content

For the deficiency that above-mentioned prior art exists, the purpose of this utility model is to provide that a kind of structure is simple, slide guide stroke is long, button stability is high, can effectively dust-proof and wear-resistant Novel keyboard structure.

To achieve these goals, the utility model adopts following technical scheme:

A kind of Novel keyboard structure, it comprises the keyboard case combined by upper cover and lower cover, described keyboard case covers and is provided with several keycap, several key switch be connected with keycap is provided with in described keyboard case, plate in a location is provided with in described keyboard case, in described location, plate is provided with several slide guide well for locating key switch, the main part of key switch and the upper cover of keyboard case are isolated by described slide guide well.

Preferably, described slide guide well is the uncovered shell structure in top drilling, inner hollow, bottom, and described slide guide well is one-body molded and protrude from the primary flat of plate in location with plate in location.

Preferably, described key switch comprises pusher and silicone elastomer body; Described pusher is placed in slide guide well, and the top of described pusher is connected with keycap close-fitting through the top drilling of slide guide well; Described silicone elastomer body is arranged at below pusher for conducting keyboard lines.

Preferably, the madial wall of described slide guide well is provided with some buffering convex tendons uniformly; Described pusher is the assembly combined by upper and lower two concentric prisms or cylinder, and the outward flange of the latter half of described pusher is provided with some elastic arms uniformly; Described elastic arm contacts to form cushioning effect with buffering convex tendon.

Preferably, the first half prism of described pusher or the top of cylinder are provided with protruding cross-rib or a word muscle, and described pusher is connected with keycap close-fitting by cross-rib or a word muscle.

Preferably, described pusher is plastic-steel material.

Preferably, in described location, the upper cover of plate and keyboard case is one-body molded.

Owing to have employed such scheme, the utility model has used for reference the design feature that traditional integral formula mechanical switch has good dust-proof effect, by plate in the location of setting, the main part of key switch and keyboard top cover are isolated, be specially and the pusher of key switch be designed to upper and lower two concentric prisms or column structure, its the first half is connected with keycap through the top drilling of slide guide well, the latter half is enclosed in the below of plate in location by slide guide well as the main part of switch, prismatic or cylindrical owing to adopting, be beneficial to pusher the top drilling of slide guide well is closed, to prevent keyboard in a non-operative state, the wearing and tearing between keyboard service behaviour or aggravation parts are affected because of dust and outside entering of foreign material, pusher is designed to the effect that two-part structure also achieves two sections of location of key switch simultaneously, and key switch more firmly, is stably fixed.

Meanwhile, the pusher of key switch by carrying out knee-action in slide guide well, and because slide guide well adopts the version protruding from the primary flat of plate in location, compared to traditional keyboard, it has longer slide guide stroke; Contacted with the buffering convex tendon in slide guide well by the elastic arm arranged, the hard contact at slide guide push rod and slide guide well top can be avoided, add the stability of button, enable the button of whole keyboard obtain more consistent feel.

In addition, key switch can carry out the anatomical connectivity of various ways with keycap, as removably connecting of cross-rib or a word muscle; Its structure is simple, has very strong practicality and market popularization value.

Accompanying drawing explanation

Fig. 1 is the combining structure schematic cross-section of the utility model embodiment;

Fig. 2 is the structural section schematic diagram of plate in the location of the utility model embodiment;

Fig. 3 is the schematic top plan view of the key switch installment state of the utility model embodiment.

Embodiment

Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.

As shown in Figure 1, Figure 2 and Figure 3, the Novel keyboard structure of the present embodiment, it comprises the keyboard case (not shown) combined by upper cover (not shown) and lower cover (not shown), keyboard case covers and is provided with several keycap 1, in keyboard case, be provided with plate 3 and several key switch 4 be connected with keycap 1 in wiring board 2, location; Wherein, in location, plate 3 is provided with several slide guide well 5 for locating key switch 4; With this, by plate 3 in the location of setting, key switch 4 is positioned, fixedly mounts, by slide guide well 5, the main part of key switch 4 and the upper cover of keyboard case are isolated meanwhile.

For optimizing the structure of slide guide well 5, realize the good dust-proof or effect that prevents external impurities from entering, to avoid the service behaviour affecting keyboard or the wearing and tearing aggravated between keyboard device, (namely its top is little opening to the shell structure that slide guide well 5 is end face perforate, inner hollow, bottom are uncovered, inside can be directly barrel-shaped, the structure that bottom surface is uncovered), so, the perforate at its top can be connected with keycap 1 for key switch 4; What the position of hollow was uniform or symmetrical therein is provided with some buffering convex tendons 51, and slide guide well 5 is formed in one with plate 3 in location and protrudes from the primary flat of plate 3 in location.The structural design form concrete according to keyboard, slide guide well 5 can adopt various shapes structure, as being prismatic table shape, Fang Ti, polygon or truncated cone-shaped, the top drilling of slide guide well 5 and the part of inner hollow all can adopt the shapes such as prismatic table shape, Fang Ti, polygon or circle.

Meanwhile, when wiring board 2 adopts diaphragm type wiring board, key switch 4 can adopt following structure, namely comprises silicone elastomer body 41 and pusher 42; Wherein, pusher 42 two-part structure: the assembly namely combined by upper and lower two concentric prisms or cylinder, its the first half can be connected with keycap through the top drilling of slide guide well 5, the latter half is placed in the inside of slide guide well 5 and is slided up and down in slide guide well 5 by the drive of pusher 42 the first half, and utilize pusher 42 to be closed by the top drilling of slide guide well 5, to prevent keyboard in a non-operative state, affect the wearing and tearing between keyboard service behaviour or aggravation parts because of dust and outside entering of foreign material.For preventing the inside top hard contact of pusher 42 and slide guide well 5; Be provided with some elastic arms 44 uniformly at the outward flange of the latter half of pusher 42, coordinated with buffering convex tendon 51 contact by elastic arm 44 and form cushioning effect.And the bosom of silicone elastomer body 41 has salient point, silicone elastomer body 41 is arranged at the below of pusher 42 for conducting keyboard lines.

In addition, the word muscle (not shown) being raised in pusher 42 top planes or cross-rib 43 is provided with at the top of pusher 42; For cross-rib 43, be provided with the cross structure (not shown) of respective recesses in the inside of corresponding keycap 1, with this, pusher 42 is connected with keycap 1 close-fitting by cross-rib 43; In addition, pusher 42 can adopt the plastic-steel material (POM) with greasy property, to make substantially not wear and tear between pusher 42 and slide guide well 5, thus the button of this structure is optimized in feel and on the life-span.

When keycap 1 is in standby condition, the perforate at slide guide well 5 top is sealed by pusher 42, dust cannot be entered, due to the elastic arm 44 below pusher 42 and arrange silicone elastomer body 41, below is the wiring board 2 of diaphragm type again, when finger presses down keycap 1, drive the downward extruding silicone elastomer body 41 that pusher 42 utilizes elastic arm 44 stable with the cushioning effect of buffering convex tendon 51, make the fluctuating plate circuit elastic deformation of the salient point compressing wiring board 2 in silicone elastomer body 41, make the contact conducting being printed on wiring board 2, when finger lifts, then silicone elastomer body 41 restores to the original state, promote pusher 42, elastic arm 44 and keycap 1 upwards reset, and wiring board 2 also stops distortion simultaneously, recover off-state, the impulse stroke that formation like this one is complete.

The foregoing is only preferred embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model specification and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.

Claims

1. a Novel keyboard structure, it comprises the keyboard case combined by upper cover and lower cover, described keyboard case covers and is provided with several keycap, several key switch be connected with keycap is provided with in described keyboard case, it is characterized in that: in described keyboard case, be provided with plate in a location, in described location, plate is provided with several slide guide well for locating key switch, the main part of key switch and the upper cover of keyboard case are isolated by described slide guide well.

2. a kind of Novel keyboard structure as claimed in claim 1, is characterized in that: described slide guide well is the uncovered shell structure in top drilling, inner hollow, bottom, and described slide guide well is one-body molded and protrude from the primary flat of plate in location with plate in location.

3. a kind of Novel keyboard structure as claimed in claim 2, is characterized in that: described key switch comprises pusher and silicone elastomer body; Described pusher is placed in slide guide well, and the top of described pusher is connected with keycap close-fitting through the top drilling of slide guide well; Described silicone elastomer body is arranged at below pusher for conducting keyboard lines.

4. a kind of Novel keyboard structure as claimed in claim 3, is characterized in that: the madial wall of described slide guide well is provided with some buffering convex tendons uniformly; Described pusher is the assembly combined by upper and lower two concentric prisms or cylinder, and the outward flange of the latter half of described pusher is provided with some elastic arms uniformly; Described elastic arm contacts to form cushioning effect with buffering convex tendon.

5. a kind of Novel keyboard structure as claimed in claim 3, is characterized in that: the first half prism of described pusher or the top of cylinder are provided with protruding cross-rib or a word muscle, and described pusher is connected with keycap close-fitting by cross-rib or a word muscle.

6. a kind of Novel keyboard structure as claimed in claim 3, is characterized in that: described pusher is plastic-steel material.

7. a kind of Novel keyboard structure according to any one of claim 1-5, is characterized in that: in described location, the upper cover of plate and keyboard case is one-body molded.