CN103956290A - Key structure - Google Patents
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- CN103956290A CN103956290A CN201410174075.1A CN201410174075A CN103956290A CN 103956290 A CN103956290 A CN 103956290A CN 201410174075 A CN201410174075 A CN 201410174075A CN 103956290 A CN103956290 A CN 103956290A
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- keycap
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Abstract
The invention provides a key structure. The key structure comprises a bottom board, a keycap, a lifting mechanism, a light emitting unit, a light-proof cover and a flexible light-proof tubular part, wherein the keycap can vertically move through the lifting mechanism relative to the bottom board; the light emitting unit is arranged below the light transmission part of the keycap and used for emitting light; the light-proof cover covers the light emitting unit so that light passes through an opening of the light-proof cover and then is emitted out of the light-proof cover towards the keycap; the flexible light-proof tubular part is arranged between the keycap and the light emitting unit, and the open end of the flexible light-proof tubular part surrounds the light-proof cover so as to prevent light from being leaked; when the keycap moves towards the bottom board, the flexible light-proof tubular part is restrained by the keycap and the light-proof cover and then warps and deforms, and however light still can pass through the flexible light-proof tubular part and emit out of the light-proof cover towards the keycap. The key structure can effectively prevent light from being leaked from the periphery of the keycap.
Description
Technical field
The present invention is about a kind of press-key structure, espespecially a kind of press-key structure with lamplight pointing.
Background technology
Keyboard is common input unit, conventional keyboard is printed with word, pattern to point out the function of this button of user more than key cap surface, light (for example LED) is separately set on structure frame to point out user's keyboard specific function, such as capital and small letter switch prompting, numerical key panel enable, form scroll lock etc.Some keyboard is directly arranged at the pilot light of some specific function in the function key of switching this function at present, for example Caps Lock.Now, LED is fixedly installed on keycap below, and keycap has corresponding transmittance section, for the light penetration of this LED transmitting, and then reaches the effect of indication.Yet the light of general LED transmitting there is no specific direction or has no small dispersion angle, therefore the light of LED transmitting can be all through transmittance section, and there is the light of considerable part to spill between keycap and base plate.To this problem, the light shields that use, cover in LED upper more at present, to control LED emission of light, penetrate the dispersion angle after this light shield.Though this solution can alleviate the degree that aforementioned light spills, but inevitable in practice, even if penetrate the light of light shield, all direct at this transmittance section, when light enters the interface of this transmittance section, must have light to be reflected, the light of this reflection will have part between keycap and base plate, to spill, and the light of ejaculation light shield is advanced in air, also will there be the phenomenons such as refraction, reflection, and also can produce the situation that light spills between keycap and base plate.Therefore, aforementioned solution cannot be effectively and solve thoroughly the problem that light spills between keycap and base plate.
Summary of the invention
In view of the problems of the prior art, one of object of the present invention is to provide a kind of press-key structure, utilizes flexible light tight tubulose part to prevent that light from releasing press-key structure, the problem easily around spilling from keycap to solve the light of illuminating part transmitting in known techniques.
For achieving the above object, the present invention proposes a kind of press-key structure, comprises base plate, keycap, elevating mechanism, luminescence unit, light tight cover and flexible light tight tubulose part; Keycap has transmittance section and basal surface; This elevating mechanism is connected between this basal surface and this base plate, and this keycap is moved up and down with respect to this base plate by this elevating mechanism; This luminescence unit is arranged at this below, transmittance section, and this luminescence unit is in order to emission of light; Light tight cover has the opening towards this keycap, and this light tight cover cap is lived this luminescence unit and made this light towards this keycap, penetrate this light tight cover via this opening; Flexible light tight tubulose part is arranged between this basal surface and this luminescence unit, and this flexible light tight tubulose part has the first openend, this flexible light tight tubulose part with this first openend around this light tight cover; Wherein, when this keycap is pressed with when this base plate moves, this flexible light tight tubulose part is subject to this keycap and this light tight cover is restrained and torsional deformation.
As optional technical scheme, this press-key structure also comprises film circuit board, and this film circuit board is in order to provide input signal, and this film circuit board is arranged under this luminescence unit.
As optional technical scheme, this flexible light tight tubulose part has the second openend, and this flexible light tight tubulose part is sealedly attached on this basal surface with this second openend.
As optional technical scheme, the rigidity of this flexible light tight tubulose part is less than the rigidity of this keycap.
As optional technical scheme, this keycap and the one-body molded combination of this flexible light tight tubulose part.
As optional technical scheme, this keycap has the portion of enclosing, this encloses portion and towards this luminescence unit, extends a length with respect to this basal surface, this flexible light tight tubulose part has the second openend, this second openend is over against this transmittance section, when this keycap is not pressed, between this second openend and this basal surface, there is spacing, this spacing is less than this length.
As optional technical scheme, this film circuit board is arranged on this base plate.
As optional technical scheme, this base plate is arranged on this film circuit board, and this base plate has through hole, and this luminescence unit is arranged in this through hole.
As optional technical scheme, this press-key structure also comprises supporting bracket, and this film circuit board is arranged in this supporting bracket.
Compared to prior art, this keycap of the present invention is pressed with when this base plate moves, this flexible light tight tubulose part is subject to this keycap and this light tight cover is restrained and torsional deformation, this openend of this flexible light tight tubulose part still can retaining ring around this light tight cover, still can effectively avoid this light to spill from this openend.Now, this light still can be advanced and penetrate this keycap from this transmittance section towards this keycap via this flexible light tight tubulose part, still possesses the function of pointing out user.Therefore press-key structure of the present invention can effectively prevent that light is from surrounding's leakage of this keycap, solve the problem that in known techniques, light easily spills from keycap around.
Can be by following detailed Description Of The Invention and appended graphic being further understood about the advantages and spirit of the present invention.
Accompanying drawing explanation
Fig. 1 is according to the schematic diagram of the press-key structure of one embodiment of the invention.
Fig. 2 is the explosive view of press-key structure in Fig. 1.
Fig. 3 is the cutaway view of press-key structure X-X along the line in Fig. 1.
Fig. 4 is the cutaway view of press-key structure when keycap presses down in Fig. 3.
Fig. 5 is the cutaway view of press-key structure according to another embodiment of the present invention.
Fig. 6 is the cutaway view of press-key structure when keycap presses down in Fig. 5.
Fig. 7 is the cutaway view of press-key structure according to still another embodiment of the invention.
Embodiment
Refer to Fig. 1 to Fig. 3.Fig. 1 is according to the schematic diagram of the press-key structure 1 of one embodiment of the invention, and Fig. 2 is the explosive view of press-key structure 1, and Fig. 3 is the cutaway view of press-key structure 1 X-X along the line.In the present embodiment, the Caps Lock that press-key structure 1 is keyboard, but the present invention is not as limit, such as being applied to other function keys or letter, numerical key etc.Press-key structure 1 comprises that base plate 10, keycap 12, elevating mechanism 14, film circuit board 16, Elastic Circular are prominent 18, luminescence unit 20, light tight cover 22 and flexible light tight tubulose part 24.Keycap 12 is arranged on base plate 10 and has transmittance section 122 and basal surface 124, elevating mechanism 14 is connected between basal surface 124 and base plate 10, keycap 12 can be moved up and down with respect to base plate 10 by elevating mechanism 14, in the present embodiment, elevating mechanism 14 is scissor support, but the present invention is not as limit.Film circuit board 16 is arranged on base plate 10, luminescence unit 20 is arranged at 122 belows, transmittance section and is directly electrically connected on film circuit board 16 such as but not limited to light-emittingdiode, and film circuit board 16 can provide input signal (not being shown in figure) to drive luminescence unit 20 luminous.Film circuit board 16 also comprises switch 162 (indicating its projected position in Fig. 2 and Fig. 3 with dotted line), the prominent 18 pairs of inductive switch 162 of Elastic Circular are arranged on film circuit board 16, make keycap 12 to base plate 10, to move to push Elastic Circular prominent 18 and trigger switch 162 by elevating mechanism 14.Light tight cover 22 arrange (for example pasting) on film circuit board 16 to cover luminescence unit 20, light tight cover 22 has the opening 222 towards keycap 12, and the light L1 that makes luminescence unit 20 transmitting only can 122 penetrate light tight cover 22 towards transmittance section via opening 222.
Flexible light tight tubulose part 24 is arranged between basal surface 124 and luminescence unit 20, flexible light tight tubulose part 24 has the second openend 244 of the first openend 242 and relative the first openend 242, flexible light tight tubulose part 24 with the first openend 242 around light tight cover 22.In the present embodiment, flexible light tight tubulose part 24 closely entangles light tight cover 22 with the first openend 242, makes light L1 after the opening 222 of light tight cover 22 penetrates, and can not spill from the first openend 242, but the present invention is not as limit.For example, in practice, 22, the first openend 242 and light tight cover can have gap, as long as light L1 can not spill from the first openend 242, or the light L1 spilling from the first openend 242 can ignore (being for example difficult for the perception for human eye institute).The second openend 244 is towards transmittance section 122, make light L1 penetrate and enter after flexible light tight tubulose part 24 from the opening 222 of light tight cover 22, can be again from the second openend 244, penetrate flexible light tight tubulose part 24 122 to advance towards transmittance section, and then penetrate keycap 12 through transmittance section 122.In the present embodiment, the complete contact basal surface 124 in the edge of the second openend 244, therefore the light L1 entering in the passage that flexible light tight tubulose part 24 forms also can not spill from the second openend 244 and the junction of basal surface 124.
See also Fig. 4, it is the cutaway view of press-key structure 1 when keycap 12 presses down.When keycap 12 is pressed with when base plate 10 moves, flexible light tight tubulose part 24 is subject to keycap 12 and restrains and torsional deformation with light tight cover 22.Because flexible light tight tubulose part 24 has flexible, even therefore when flexible light tight tubulose part 24 torsional deformation, flexible light tight tubulose part 24 keeps sealing state with light tight cover 22 and basal surface 124, the passage that flexible light tight tubulose part 24 forms still keeps unimpeded, light L1 in this passage still can be successfully penetrates flexible light tight tubulose part 24 122 to advance towards transmittance section from the second openend 244, and then penetrates keycap 12 through transmittance section 122.When keycap 12 is released (being no longer pressed), keycap 12 moves up and gets back to original position, and flexible light tight tubulose part 24 also can restore to the original state (in the present embodiment, being straight-tube shape), as shown in Figure 3.In practice, flexible light tight tubulose part 24 can be used rubber, silica gel or other flexible materials to make, but the present invention is not as limit.For example flexible light tight tubulose part 24 and the one-body molded combination of keycap 12 (for example one-body molded ejaculation), by also obtaining required flexible, elasticity to the control of the pipe thickness of flexible light tight tubulose part 24, that is the rigidity of flexible light tight tubulose part 24 is less than the rigidity of keycap 12.In the present embodiment, no matter flexible light tight tubulose part 24 is with individual member or one-body molded with keycap 12, and the second openend 244 of flexible light tight tubulose part 24 all can be considered and is sealedly attached on basal surface 124.
In addition, in the present embodiment, passage, light tight cover 22 and opening 222 thereof, the luminescence unit 20 that transmittance section 122, flexible light tight tubulose part 24 form settings that be roughly in line, the passage that luminescence unit 20 easily forms through flexible light tight tubulose part 24, transmittance section 122 and ejaculation keycap 12; But the present invention is not as limit.For example, when flexible light tight tubulose part 24 inwalls have certain reflectivity, the light L1 that enters the passage of flexible light tight tubulose part 24 formation can and penetrate flexible light tight tubulose part 24 from the second openend 244 by the multiple reflections of vias inner walls; Now, transmittance section 122, flexible light tight tubulose part 24 form passage, light tight cover 22 and opening 222 thereof, luminescence unit 20 can be without the settings that is in line.Light L1 can provide user visual indicating effect through transmittance section 122, in the present embodiment, the input state of user's keyboard in letter capitalization in the rounded profile of keycap 12 top surface, for example, when light L1 passes transmittance section 122, can be indicated in transmittance section 122.In practice, the pattern that transmittance section 122 forms can be determined according to product requirement, with aforementioned circle, is not limited, and also can be font or other patterns (for example special sign, symbol) letter and is limited.In addition, in the present embodiment, transmittance section 122 is light-permeable entity, but the present invention is not as limit, for example, directly in keycap 12 hollow outs, form transmittance section and also can.
In previous embodiment, the both ends of flexible light tight tubulose part 24 (i.e. the first openend 242 and the second openend 244) respectively with light tight cover 22 and basal surface 124 close contacts (or being fixedly connected with) to form the light channel of sealing, but the present invention is not as limit.Refer to Fig. 5, it is the cutaway view of press-key structure 3 according to another embodiment of the present invention, and its profile position can be consulted the position of Fig. 1 center line X-X.Press-key structure 3 is roughly the same with press-key structure 1 structure, and in press-key structure 3, identical components still adopts the component symbol of identical components in press-key structure 1 in principle.Below only with regard to press-key structure 3 and press-key structure 1 difference, describe, other explanations of press-key structure 3 can be consulted the related description of aforementioned keys structure 1, separately do not repeat.In the present embodiment, the first openend 342 of the flexible light tight tubulose part 34 of press-key structure 3 still keeps closely entangling light tight cover 22,344 non-close contacts of its second openend (or being fixedly connected with) basal surface 124 but over against transmittance section 122.When keycap 12 is not pressed (being that keycap 12 is positioned at relatively high position with respect to base plate 10), 124 of the second openend 344 and basal surfaces have spacing 346.Keycap 12 has the portion of enclosing 126, with respect to basal surface 124, towards luminescence unit 20, extend a length 128 (enclosing the vertical interval of portion's 126 lower edges and basal surface 124), spacing 346 is less than length 128, therefore still can be enclosed portion 126 after the light L2 leaking out from the second openend 344 and 124 of basal surfaces covers, the unlikely user who is positioned at keycap 12 tops discovers, or the light L2 leaking out through member repeatedly, (for example basal surface 124, film circuit board 16, base plate 10 etc.) after reflection, can ignore for the luminous intensity that user discovers (being for example difficult for the perception for human eye institute).
Referring to Fig. 6, Fig. 6 is the cutaway view of press-key structure 3 when keycap 12 presses down.Identical with press-key structure 1, when press-key structure 3 is when keycap 12 presses down, flexible light tight tubulose part 34 is subject to keycap 12 and restrains and torsional deformation with light tight cover 22, the passage that flexible light tight tubulose part 34 forms still keeps unimpeded, light L1 in this passage still can be successfully penetrates flexible light tight tubulose part 34 122 to advance towards transmittance section from the second openend 344, and then penetrates keycap 12 through transmittance section 122.Compared to the flexible light tight tubulose part 24 of press-key structure 1, when press-key structure 3 is when keycap 12 presses down, the deformation extent that flexible light tight tubulose part 34 produces is less, and the passage that can make flexible light tight tubulose part 34 form is more smooth and easy.
Aforementioned each embodiment all be take film circuit board 16, and to be arranged at base plate top be example, but the present invention is not as limit.Refer to Fig. 7, it is the cutaway view of press-key structure 4 according to still another embodiment of the invention, and its profile position can be consulted the position of Fig. 1 center line X-X.Press-key structure 4 is roughly the same with press-key structure 1 structure, and in press-key structure 4, identical components still adopts the component symbol of identical components in press-key structure 1 in principle.Below only with regard to press-key structure 4 and press-key structure 1 difference, describe, other explanations of press-key structure 4 can be consulted the related description of aforementioned keys structure 1, separately do not repeat.In the present embodiment, the base plate 40 of press-key structure 3 is arranged on film circuit board 16 and has through hole 402, and luminescence unit 20 is arranged in through hole 402, and 22, light tight cover is arranged on base plate 40 to cover through hole 402 and luminescence unit 20 simultaneously.In practice, through hole 402 can have larger aperture with the accommodating light tight cover 22 of energy, and light tight cover 22 can be directly arranged on film circuit board 16.In addition, press-key structure 4 also comprises supporting bracket 42, and film circuit board 16 is arranged in supporting bracket 42, and supporting bracket 42 can provide the support structure of press-key structure 4 integral body.In addition, aforementioned keys structure 3, repeats no more also applicable to press-key structure 4 about the configuration of flexible light tight tubulose part 34.
The foregoing is only preferred embodiment of the present invention, all equalizations of doing according to the claims in the present invention change and modify, and all should belong to covering scope of the present invention.
Claims (9)
1. a press-key structure, is characterized in that comprising:
Base plate;
Keycap, has transmittance section and basal surface;
Elevating mechanism, this elevating mechanism is connected between this basal surface and this base plate, and this keycap is moved up and down with respect to this base plate by this elevating mechanism;
Luminescence unit, this luminescence unit is arranged at this below, transmittance section, and this luminescence unit is in order to emission of light;
Light tight cover, has the opening towards this keycap, and this light tight cover cap is lived this luminescence unit and made this light towards this keycap, penetrate this light tight cover via this opening; And
Flexible light tight tubulose part, is arranged between this basal surface and this luminescence unit, and this flexible light tight tubulose part has the first openend, this flexible light tight tubulose part with this first openend around this light tight cover;
Wherein, when this keycap is pressed with when this base plate moves, this flexible light tight tubulose part is subject to this keycap and this light tight cover is restrained and torsional deformation.
2. press-key structure as claimed in claim 1, is characterized in that: this press-key structure also comprises film circuit board, and this film circuit board is in order to provide input signal, and this film circuit board is arranged under this luminescence unit.
3. press-key structure as claimed in claim 1, is characterized in that: this flexible light tight tubulose part has the second openend, and this flexible light tight tubulose part is sealedly attached on this basal surface with this second openend.
4. press-key structure as claimed in claim 1, is characterized in that: the rigidity of this flexible light tight tubulose part is less than the rigidity of this keycap.
5. press-key structure as claimed in claim 1, is characterized in that: this keycap and the one-body molded combination of this flexible light tight tubulose part.
6. press-key structure as claimed in claim 1, it is characterized in that: this keycap has the portion of enclosing, this encloses portion and towards this luminescence unit, extends a length with respect to this basal surface, this flexible light tight tubulose part has the second openend, this second openend is over against this transmittance section, when this keycap is not pressed, between this second openend and this basal surface, there is spacing, this spacing is less than this length.
7. press-key structure as claimed in claim 2, is characterized in that: this film circuit board is arranged on this base plate.
8. press-key structure as claimed in claim 2, is characterized in that: this base plate is arranged on this film circuit board, and this base plate has through hole, and this luminescence unit is arranged in this through hole.
9. press-key structure as claimed in claim 8, is characterized in that: this press-key structure also comprises supporting bracket, and this film circuit board is arranged in this supporting bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410174075.1A CN103956290B (en) | 2014-04-28 | 2014-04-28 | Press-key structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410174075.1A CN103956290B (en) | 2014-04-28 | 2014-04-28 | Press-key structure |
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| Publication Number | Publication Date |
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| CN103956290A true CN103956290A (en) | 2014-07-30 |
| CN103956290B CN103956290B (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410174075.1A Active CN103956290B (en) | 2014-04-28 | 2014-04-28 | Press-key structure |
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