CN105355497A

CN105355497A - Keyboard key film

Info

Publication number: CN105355497A
Application number: CN201510831878.4A
Authority: CN
Inventors: 李晨曦
Original assignee: Dongguan City Ming Guan Electronic Science And Technology Co Ltd
Current assignee: Dongguan City Ming Guan Electronic Science And Technology Co Ltd
Priority date: 2015-11-25
Filing date: 2015-11-25
Publication date: 2016-02-24
Anticipated expiration: 2035-11-25
Also published as: CN105355497B

Abstract

The invention discloses a keyboard key film. The keyboard key film is used as a key film body for wrapping a key button of a key, wherein the top end of the key film body is provided with a through hole which enables a control bar of a key cap to pass through; the edge of the through hole stretches a first tongue edge toward the center of the through hole; and by means of the first tongue edge, a free end of the first tongue abuts against the outer wall of the control bar of the key cap to prevent the dust from entering the key film body so that the problem of dust entry can be effectively solved.

Description

A kind of keyboard film

Technical field

The present invention relates to a kind of keyboard accessory, be specifically related to a kind of keyboard film.

Background technology

Keyboard film is a kind of product protecting key switch substrate between button cap and key switch substrate; due to button in use; dust can be very easy to enter to key switch substrate; and in control lever under being attached to keycap or key switch substrate; therefore keyboard film is just used to protect the requisite accessory preventing dust from entering; but the dust-proof effect of key board film is not still desirable especially at present; still having some dust granules enters wherein, has a strong impact on the experience sense of user in the course of time.

Summary of the invention

The object of the invention is to overcome above-described shortcoming, a kind of keyboard film of dust-proof effect excellence is provided.

For achieving the above object, concrete scheme of the present invention is as follows: a kind of keyboard film, and for wrapping up the key film film body of button key button, described key film film body top is provided with the through hole for making the control lever of keycap pass through; The edge of described through hole extends to the center of through hole the first tongue edge.

Wherein, described key film film body is silica gel material.

Wherein, described through hole is cross.

Wherein, described key film film body is provided with boss, and described through hole is located on boss.

Wherein, the edge of described through hole also extend to the center of through hole have the second tongue along and the 3rd tongue edge; Be formed with the first cavity between described first tongue edge and the second tongue edge, between the 3rd tongue edge and the second tongue edge, be provided with the second cavity.

Wherein, described first tongue is along being the setting that is inclined upwardly, and the 3rd tongue edge is downward-sloping setting.

Wherein, state the first tongue along and the angle of horizontal plane be a be between 100 ° to 110 °; The angle b of the second tongue edge and horizontal plane is between-100 ° to-110 °; Described first tongue edge, the second tongue is between 0.05-0.2mm along the thickness on, the 3rd tongue edge; Described first tongue along and the second tongue along, second tongue along and the 3rd tongue along between distance be between 0.1-0.25mm; Described first tongue edge, the second tongue is between 0.1-0.25mm along the length on, the 3rd tongue edge.

Wherein, described first tongue is 105 ° along being a with the angle of horizontal plane; Second tongue is along being-105 ° with the angle b of horizontal plane; Described first tongue edge, the second tongue is 0.1mm along the thickness on, the 3rd tongue edge; Described first tongue along and the second tongue along, second tongue along and the 3rd tongue along between distance be 0.16mm; Described first tongue edge, the second tongue is 0.15mm along the length on, the 3rd tongue edge.

Beneficial effect of the present invention is: by the first tongue edge arranged, its free end can with the outer wall of the control lever under keycap against, prevent dust from entering in key film film body further, effectively solve the problem entering dust.

Accompanying drawing explanation

Fig. 1 is stereogram of the present invention;

Fig. 2 is sectional view of the present invention;

Fig. 3 is the partial enlarged drawing of Fig. 2;

Description of reference numerals in Fig. 1 to Fig. 3:

1-key film film body; 2-boss; 3-through hole;

41-first tongue edge; 42-second tongue edge; 43-the 3rd tongue edge;

51-first cavity; 52-second cavity.

Embodiment

Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation, is not practical range of the present invention is confined to this.

embodiment 1.

As shown in Figure 1 to Figure 3, a kind of keyboard film described in the present embodiment, for wrapping up the key film film body 1 of button key button, described key film film body 1 top is provided with the through hole 3 for making the control lever of keycap pass through; The edge of described through hole 3 extends to the center of through hole 3 has the first tongue along 41; By the first tongue of arranging along 41, its free end can with the outer wall of the control lever under keycap against, prevent dust from entering in key film film body 1 further, effectively solve the problem entering dust.

A kind of keyboard film described in the present embodiment, described key film film body 1 is silica gel material; Silica gel material is more soft and durable, not fragile, and can reduce pause and transition in rhythm or melody sense, increase experience sense on using, and effectively improves practicality of the present invention.

A kind of keyboard film described in the present embodiment, described through hole 3 is cross; For criss-cross control lever under coordinating keycap, improve the applicable performance of cross-bar.

A kind of keyboard film described in the present embodiment, described key film film body 1 is provided with boss 2, and described through hole 3 is located on boss 2; Boss 2 adds the thickness of key film film body 1 upper part, namely increases steadiness, improves dust-proof effect.

A kind of keyboard film described in the present embodiment, as Fig. 3, the edge of described through hole 3 also extend to the center of through hole 3 have the second tongue along 42 and the 3rd tongue along 43; Described first tongue along 41 and second tongue along be formed between 42 first cavity the 51, three tongue along 43 and second tongue between 42, be provided with the second cavity 52; A kind of keyboard film described in the present embodiment, described first tongue is the setting that is inclined upwardly along 41, and the 3rd tongue is downward-sloping setting along 43; First cavity 51 and the second cavity 52 have all possessed the storage chamber storing different-diameter size particles; Concrete, when the control lever of keyboard cap lower end moves downward time, first first tongue blocks external dust along 41, but fine dust is thrown away and can be entered, at this time because the second tongue is identical along the direction of motion of 41 with the first tongue along the direction of motion of 42, therefore the fine dust entered is shoveled in the first cavity 51; But in fact have less dust, we become more fine dust here, more fine dust can slip into from the second tongue along 42, therefore also needs to continue to root out from the 3rd tongue along 43, will more fine dust shovel in the second cavity 52.

When the use of common keyboard button film, often discovery time is of a specified duration still there will be dust and be attached to phenomenon on control lever for people, is generally think that the distance between through hole 3 and control lever is excessive; And the present invention have employed the first tongue along 41 in this problem of solution, contact with the outer wall of control lever along 41 by the first tongue, although which achieves good dust-proof effect in result, but subsequent experimental personnel still find in use for some time, certain pause and transition in rhythm or melody sense when button presses down, can be produced; But control lever does not have obvious dust traces; Therefore finally found by many experiments such as multiplying arrangement observation and species analysis such as microscopes, also has more tiny dust, it is directly about: 50-100nm, this dust runs into humid air and can solidify agglomerating, the outer wall of the control lever made is not smooth, thus had pause and transition in rhythm or melody sense, and before the present invention designs, do not have the questions and prospect that people finds pause and transition in rhythm or melody sense, after working out this reason, the present invention is achieved by the cleaning function on design two groups of tongue edges and ceaselessly sweeps in cavity by dust, make it in cavity, form dust group, do not affect the surface of control lever.

First tongue along 41 to the 3rd tongue possesses along 43 the function swept, and the first cavity 51 and the second cavity 52 possess the function of storage, when both combine, it has possessed the function of the tiny micronic dust of cleaning, namely the 3rd tongue does not stop upwards to sweep along 43, by micronic dust backrush to the second cavity 52, makes micronic dust be stored in the second cavity 52 after the second cavity 52 with the water condensation in air, prevent it to be attached on control lever, also prevent micronic dust from continuing to enter to key switch substrate.

embodiment 2.

As Fig. 3, a kind of keyboard film described in the present embodiment, is with the difference of embodiment 1: be provided with concrete size, and the first tongue is a along 41 and the angle of horizontal plane is between 100 ° to 110 °; Second tongue is between-100 ° to-110 ° along the angle b of 42 and horizontal plane; Described first tongue along 41, the thickness of the second tongue along the 42, the 3rd tongue along 43 is between 0.05-0.2mm; Described first tongue along 41 and second tongue along the 42, second tongue along 42 and the 3rd tongue be between 0.1-0.25mm along the distance between 43; Described first tongue along 41, the length of the second tongue along the 42, the 3rd tongue along 43 is between 0.1-0.25mm.

In nearly up to ten thousand experiments, show that the keyboard film effect of this size can be very good, still smooth after pressing more than 100,000 times, do not have pause and transition in rhythm or melody sense, after any one size exceeds above-mentioned size range, compression number will be reduced within 60,000 times; The present invention is for verifying that this experiment following of this size specific experiment is not included in above-mentioned experiment number:

Four groups of experiment buttons are set, often organize button 100, carry out analogue-key by manipulator and operate:

Wherein, the concrete size of size 1 to size 3 is all different from size 4, and namely every size all increases or reduces 100%-300%, and size increases at random or reduces, but can not be identical with size 4, and size 4 is the preferred size of above-described embodiment 2.

	size 1	size 2	size 3	size 4
					40000 times	20 have pause and transition in rhythm or melody sense; 80 do not have pause and transition in rhythm or melody sense;	25 have pause and transition in rhythm or melody sense; 75 do not have pause and transition in rhythm or melody sense;	15 have pause and transition in rhythm or melody sense; 85 do not have pause and transition in rhythm or melody sense;	2 have pause and transition in rhythm or melody sense; 98 do not have pause and transition in rhythm or melody sense;
60000 times	97 have pause and transition in rhythm or melody sense; 3 do not have pause and transition in rhythm or melody sense;	92 have pause and transition in rhythm or melody sense; 8 do not have pause and transition in rhythm or melody sense;	90 have pause and transition in rhythm or melody sense; 10 do not have pause and transition in rhythm or melody sense;	3 have pause and transition in rhythm or melody sense; 97 do not have pause and transition in rhythm or melody sense;
					100000 times	99 have pause and transition in rhythm or melody sense; 1 does not have pause and transition in rhythm or melody sense;	93 have pause and transition in rhythm or melody sense; 7 do not have pause and transition in rhythm or melody sense;	98 have pause and transition in rhythm or melody sense; 2 do not have pause and transition in rhythm or melody sense;	5 have pause and transition in rhythm or melody sense; 95 do not have pause and transition in rhythm or melody sense.

Therefore, can reach a conclusion, in the scope that size remains on embodiment 2, its touch potential can remain on 100,000 times and not have pause and transition in rhythm or melody sense, and effect is very outstanding.

Preferably, a kind of keyboard film described in the present embodiment, described first tongue is a along 41 with the angle of horizontal plane is 105 °; Second tongue is-105 ° along 42 and the angle b of horizontal plane; Described first tongue along 41, the thickness of the second tongue along the 42, the 3rd tongue along 43 is 0.1mm; Described first tongue along 41 and second tongue along the 42, second tongue along 42 and the 3rd tongue be 0.16mm along the distance between 43; Described first tongue along 41, the length of the second tongue along the 42, the 3rd tongue along 43 is 0.15mm.Designer, again through test of many times, draws this precise information, and making 96% touch potential testing button can reach 15 times does not have pause and transition in rhythm or melody sense.

The above is only several preferred embodiment of the present invention, therefore all equivalences done according to structure, feature and the principle described in patent claim of the present invention change or modify, and are included in the protection range of patent application of the present invention.

Claims

1. a keyboard film, is characterized in that: for wrapping up the key film film body (1) of button key button, and described key film film body (1) top is provided with the through hole (3) for making the control lever of keycap pass through; The edge of described through hole (3) extends to the center of through hole (3) has the first tongue along (41).

2. a kind of keyboard film according to claim 1, is characterized in that: described key film film body (1) is silica gel material.

3. a kind of keyboard film according to claim 1, is characterized in that: described through hole (3) is cross.

4. a kind of keyboard film according to claim 1, is characterized in that: described key film film body (1) is provided with boss (2), and described through hole (3) is located on boss (2).

5. a kind of keyboard film according to claim 1, is characterized in that: the edge of described through hole (3) also extends to the center of through hole (3) has the second tongue along (42) and the 3rd tongue along (43); Described first tongue is formed with the first cavity (51) along (41) and the second tongue between (42), and the 3rd tongue is provided with the second cavity (52) along (43) and the second tongue between (42).

6. a kind of keyboard film according to claim 5, is characterized in that: described first tongue is the setting that is inclined upwardly along (41), and the 3rd tongue is downward-sloping setting along (43).

7. a kind of keyboard film according to claim 6, is characterized in that: the angle of described first tongue edge (41) and horizontal plane is a is between 100 ° to 110 °; Second tongue is between-100 ° to-110 ° along the angle b of (42) and horizontal plane; Described first tongue along (41), the second tongue is between 0.05-0.2mm along (42), the 3rd tongue along the thickness of (43); Described first tongue is between 0.1-0.25mm along (41) and the second tongue edge (42), the second tongue along the distance between (42) and the 3rd tongue edge (43); Described first tongue along (41), the second tongue is between 0.1-0.25mm along (42), the 3rd tongue along the length of (43).

8. a kind of keyboard film according to claim 7, is characterized in that: described first tongue is a along (41) with the angle of horizontal plane is 105 °; Second tongue is-105 ° along (42) and the angle b of horizontal plane; Described first tongue along (41), the second tongue is 0.1mm along (42), the 3rd tongue along the thickness of (43); Described first tongue is 0.16mm along (41) and the second tongue edge (42), the second tongue along the distance between (42) and the 3rd tongue edge (43); Described first tongue along (41), the second tongue is 0.15mm along (42), the 3rd tongue along the length of (43).