CN108091510A - Press-key structure - Google Patents
Press-key structure Download PDFInfo
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- CN108091510A CN108091510A CN201711484388.7A CN201711484388A CN108091510A CN 108091510 A CN108091510 A CN 108091510A CN 201711484388 A CN201711484388 A CN 201711484388A CN 108091510 A CN108091510 A CN 108091510A
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- Prior art keywords
- light
- press
- key structure
- side wall
- guiding pillar
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/023—Light-emitting indicators
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- Push-Button Switches (AREA)
Abstract
The invention discloses a kind of press-key structure, it includes upper cover, with upper cover with reference to bottom case, move up and down compared with upper cover start column, be arranged at bottom case and start intercolumniation and push up the cyclic spring device of start column and the trapezoidal light-guiding pillar of class.Bottom case has bottom case inner surface, the arc upstanding sidewall and bottom opening that have side wall notch, and bottom case inner surface section is divided into side wall surrounding area and the non-surrounding area of side wall by arc upstanding sidewall.Horizontal-extending section of the trapezoidal light-guiding pillar of class is arranged in bottom opening, and the vertical extension member of the trapezoidal light-guiding pillar of class is arranged in arc upstanding sidewall.When press-key structure is set on circuit boards, the light source of circuit board is to just horizontal extended segment, and light is guided via the transmission of the trapezoidal light-guiding pillar of class to the top surface of vertical extension member.The present invention can promote visuality of the press-key structure under dark or illumination deficiency environment, and meet user for button on aesthetic appearance, visual texture or stimulation degree the needs of.
Description
Technical field
The present invention relates to a kind of press-key structures.Specifically, the present invention relates to a kind of press-key structures for possessing light-guiding function.
Background technology
Button is to be used to input information and instruction and the important tool of switching state in the various devices comprising electronic device,
And it has become people in advanced information society and has generally used and indispensable must be equipped with.Therefore, except basic function
Property beyond, many users also it is expected that the structure design of button can be improved, and use and promote the aesthetic appearance of button, promote button and regard
Feel texture or strengthen visual stimulus of button etc..
On the other hand, when environment is excessively dim or illumination is insufficient, often there is the problem of identification difficulty using button, and may
Increase input error or visually impaired probability.In view of above-listed reason, it is necessary to design can strengthen under low lighting environment can
Depending on property, and it can further meet the press-key structure for improving the demands such as aesthetic appearance, visual texture or stimulation degree.
The content of the invention
It is an object of the invention to provide a kind of press-key structure, to promote press-key structure in the dark or insufficient environment of illumination
Under visuality.
In order to achieve the above object, the present invention proposes a kind of press-key structure, and for setting on circuit boards, which has
Light source, the light source emit beam, which includes：Upper cover, bottom case, start column, cyclic spring device and class is trapezoidal leads
Light beam.The upper cover is combined with the bottom case, which has bottom case inner surface, arc upstanding sidewall and bottom opening, and the arc is straight
Vertical side wall has side wall notch, which is divided into side wall surrounding area by the bottom case inner surface section and is not surrounded with side wall
Area, the bottom opening are formed at the bottom case inner surface and are turned on the side wall notch, and the bottom opening is from the non-surrounding area of the side wall
Extend to the side wall surrounding area；The start column has column bottom surface, which can move up and down compared with the upper cover, the column bottom
In face of the just side wall surrounding area；Cyclic spring device is arranged at the bottom case and the start intercolumniation and surround the arc upstanding sidewall,
The cyclic spring device pushes up the start column；Such trapezoidal light-guiding pillar has horizontal-extending section and vertical extension member, the water
Flat extended segment has outer edge and center-side, this horizontal-extending section is arranged in the bottom opening, which is located at the side wall
Non- surrounding area, the center-side are located at the side wall surrounding area, which is arranged in the arc upstanding sidewall；Wherein when this
When press-key structure is set on the board, the light source is to just this horizontal-extending section, and the light is sequentially via this horizontal-extending section
Transmission with the vertical extension member and enter in the side wall surrounding area, and travel upwardly and enter from the top surface of the vertical extension member
In the column bottom surface.
As optional technical solution, which further includes keycap, which further has capital face,
The keycap is connected to the capital face, which continues to travel up to the capital face and illuminate the keycap after entering the column bottom surface.
As optional technical solution, which is C-shaped upstanding sidewall, which has in C-shaped
Surface, the vertical extension member have circular arc lateral wall, and the C-shaped inner surface is close to the circular arc lateral wall.
As optional technical solution, which further has upright strip lateral wall, outside the upright strip
Side wall is to just filling up the side wall notch.
As optional technical solution, this horizontal-extending section has the first incidence surface and the second incidence surface, this first enters light
Face is located at the center-side, which is located at the outer edge, when the light source is located at below first incidence surface, the light
Straight line travels upwardly and reaches the top surface of the vertical extension member, when the light source is located at below second incidence surface, the light
It advances by plural secondary reflection and reaches the top surface of the vertical extension member.
As optional technical solution, such trapezoidal light-guiding pillar has light-emitting surface, the first incidence surface, the second incidence surface, the
One reflecting slant and the second reflecting slant；Wherein, which is located at the top surface of the vertical extension member, first incidence surface
Opposite with the light-emitting surface, which is adjacent to first incidence surface, which is located at first incidence surface
Side, and second reflecting slant is opposite with first reflecting slant.
As optional technical solution, by second incidence surface incidence the light sequentially via second reflecting slant with
And the reflection of the side of first reflecting slant or the vertical extension member and from the light extraction surface launching.
As optional technical solution, side of the vertical extension member between the light-emitting surface and first reflecting slant
For curved surface.
As optional technical solution, which further has the detent mechanism that the opposite bottom case inner surface protrudes, and
Detent mechanism setting is adjacent to this horizontal-extending section to position such trapezoidal light-guiding pillar.
As optional technical solution, such trapezoidal light-guiding pillar further includes a pair of of positioning tabs, this is to positioning tabs
Horizontal-extending section of the both sides are arranged at, and such trapezoidal light-guiding pillar detent mechanism when the bottom opening is set to support this right
Positioning tabs.
As optional technical solution, which is the cylinder of circular, polygonal or irregular shape, and the water
Flat extended segment is section shape cylinder triangular in shape or trapezoidal.
As optional technical solution, such trapezoidal light-guiding pillar is L-type light-guiding pillar.
The press-key structure of the present invention includes the trapezoidal light-guiding pillar of class with the bottom incidence surface more than top light-emitting surface and can lead
Draw more light to be incident at the top of press-key structure so that press-key structure can shine when on the light source for be arranged at circuit board.Thereby,
Visuality of the press-key structure under dark or illumination deficiency environment can further be promoted, and luminous press-key structure can meet use
Demand of the family for button on aesthetic appearance, visual texture or stimulation degree.
Below in conjunction with the drawings and specific embodiments, the present invention will be described in detail, but not as a limitation of the invention.
Description of the drawings
Fig. 1 is the explosive view according to the press-key structure of one embodiment of the invention.
Fig. 2 is the top view according to the bottom case of the press-key structure of one embodiment of the invention.
Fig. 3 is that the trapezoidal light-guiding pillar setting of class is installed on showing on bottom case in the press-key structure according to one embodiment of the invention
It is intended to.
Fig. 4 is the assembling schematic diagram according to the press-key structure of one embodiment of the invention.
Fig. 5 A and Fig. 5 B are the sectional view of the press-key structure intercepted along the line A-A ' of Fig. 4.
Fig. 6 is the signal that light is guided by the trapezoidal light-guiding pillar of class in the press-key structure according to one embodiment of the invention
Figure.
Fig. 7 A and Fig. 7 B be according to the oblique view of the trapezoidal light-guiding pillar of class in the press-key structure of another embodiment of the present invention and
Bottom view.
Fig. 8 is the schematic cross-sectional view that the trapezoidal light-guiding pillar of class shown in Fig. 7 A and Fig. 7 B is arranged in press-key structure.
Fig. 9 is the signal that light is guided by the trapezoidal light-guiding pillar of class in the press-key structure according to another embodiment of the present invention
Figure.
Figure 10 is schematic diagram of the press-key structure further with keycap assembling.
Figure 11 is the schematic diagram of the detent mechanism of bottom case in the press-key structure according to another embodiment of the present invention.
Figure 12 is the schematic diagram with the positioning tabs of the trapezoidal light-guiding pillar of class of the detent mechanism collocation shown in Figure 11.
Specific embodiment
The explanation of following embodiment is with reference to additional schema, to illustrate the particular implementation that the present invention can be used to implementation
Example.The direction term that the present invention is previously mentioned, such as " on ", " under ", "front", "rear", "left", "right", " side " etc. are only references
The direction of annexed drawings.Therefore, the direction term used is to illustrate and understand the present invention rather than to limit the present invention.
In the examples below, in various figures, same section is to be given the same reference numerals.
Hereinafter, the press-key structure of an embodiment according to the present invention will be illustrated referring to figs. 1 to Fig. 4.Wherein, Fig. 1 is
The exploded perspective view of the press-key structure of an embodiment according to the present invention；Fig. 2 is by bond according to one embodiment of the invention
The top view of the bottom case of structure；Fig. 3 is that the trapezoidal light-guiding pillar setting of class is installed in the press-key structure according to one embodiment of the invention
Schematic diagram on bottom case；And Fig. 4 is the assembling figure according to the press-key structure of one embodiment of the invention.
In schema, X-axis arrow direction is defined as the positive direction of X-axis；Y-axis arrow direction is defined as Y-axis
Positive direction；Z axis arrow direction is defined as the positive direction of Z axis；And distinguish in contrast to X-axis, Y-axis and Z axis arrow direction
It is defined as the negative direction of X-axis, Y-axis and Z axis.In addition, in this specification, X-axis, Y-axis and Z axis shown in schema are hung down each other
Directly.However, the invention is not limited thereto, and according to some embodiments of the present invention, X-axis, Y-axis and Z axis non-can be mutually perpendicular to.
It holds, with reference to Fig. 1, an embodiment according to the present invention, for press-key structure 10 on circuit boards is set to include
The trapezoidal light-guiding pillar 400 of upper cover 100, start column 200, cyclic spring device 300, class and bottom case 500.Wherein, upper cover 100 is along Z axis
It is arranged on bottom case 500 and upper cover 100 can be combined with bottom case 500, and start column 200, cyclic spring device 300 and class are trapezoidal
Light-guiding pillar 400 can be from top to bottom sequentially arranged between upper cover 100 and bottom case 500.
In addition, as shown in Figure 1, according to some embodiments of the present invention, press-key structure 10 can be also additionally comprised for conduction
Or the metallic laminas 600 of the electrical information of transmission.However, the invention is not limited thereto, and in addition press-key structure 10 can be set on demand
Different component.
Specifically, the start column 200 of press-key structure 10 has the capital face 210 of relatively close upper cover 100 and leans on relatively
The column bottom surface 220 of nearly bottom case 500；And in an assembled condition, capital face 210 can pass through the opening of upper cover 100 105 and protrude
It in upper cover 100, can so be pressed in conjunction with after keycap by user's finger, so that start column 200 moves down.With this
Relatively, cyclic spring device 300 is arranged between bottom case 500 and start column 200, and cyclic spring device 300 can push up action
Dynamic column 200；When user stops pressing keycap, cyclic spring device 300 can provide the reply for moving upwards start column 200
Power.Therefore, in an assembled condition, start column 200 can be pressed in response to user and transported up and down compared with upper cover 100
It is dynamic.
Prolong in addition, the trapezoidal light-guiding pillar 400 of class being located in press-key structure 10 under start column 200 has approximately along X-axis
Horizontal-extending section 410 stretched and the vertical extension member 420 for connecting and extending upwards approximately along Z axis from horizontal-extending section 410.
Wherein, have in the outer edge 412 of negative direction of relative orientation X-axis and the positive direction of relative orientation X-axis for horizontal-extending section 410
Heart end 414, and horizontal-extending section 410 extends to center-side 414 from outer edge 412.
The trapezoidal light-guiding pillar 400 of class is more than the top surface close to upper cover 100 in the surface area close to the bottom surface of bottom case 500
Surface area, and therefore can substantially present approximating or similar to trapezoidal shape.For example, as shown in Figure 1, according to the present invention
An embodiment, the trapezoidal light-guiding pillar 400 of class can be L-type light-guiding pillar.However, the invention is not limited thereto, and the trapezoidal light-guiding pillar of class can
The upright projection scope that extends beyond vertical extension member for various horizontal-extending sections and therefore similar or close to trapezoidal shape
Light-guiding pillar.
Further, together with Fig. 1 with reference to Fig. 2, specifically, the bottom case 500 of press-key structure 10 have bottom case inner surface 510,
It the arc upstanding sidewall 520 that is projected upwards from bottom case inner surface 510 and is formed at bottom case inner surface 510 and penetrates bottom case 500
Bottom opening 505.Bottom case inner surface 510 can be divided by arc upstanding sidewall 520 positioned at 520 inside of arc upstanding sidewall
The side wall surrounding area 530 of (that is, the inside coated by arc), with (that is, dashing forward on the outside of arc upstanding sidewall 520 in arc
The outside of outlet) the non-surrounding area 540 of side wall.Wherein, arc upstanding sidewall 520 is not formed as closed circular shape to coat
Side wall surrounding area 530, but the connection of arc upstanding sidewall 520 is cut off with side wall notch 525.That is, side wall surrounding area 530
There is side wall notch 525 between surrounding area 540 non-with side wall.In the case, it is horizontal-extending to be set forth in bottom case inner surface 510
The positive direction of bottom opening 505 from side wall non-surrounding area 540 towards X-axis extends to side wall surrounding area 530, and with vertically extending side
Wall notch 525 turns on.
It holds, it is horizontal in the assembling trapezoidal light-guiding pillar 400 of class when on bottom case 500 then together with Fig. 1 and Fig. 2 with reference to Fig. 3
Extended segment 410 may be disposed in bottom opening 505, and vertical extension member 420 may be disposed at 520 inside of arc upstanding sidewall by arc
Shape upstanding sidewall 520 surrounds (that is, completely corresponding positioned at side wall surrounding area 530).Specifically, horizontal-extending section 410
Outer edge 412 is located at the non-surrounding area 540 of side wall, and horizontal-extending section 410 of center-side 414 is located at side wall surrounding area 530.Also
That is, horizontal-extending section 410 be arranged in bottom opening 505 can be by positioned at side wall surrounding area 530 and the non-surrounding area 540 of side wall
Between side wall notch 525 turn on and extend to the non-surrounding area 540 of side wall from side wall surrounding area 530.
For example, as shown in Figure 1 to Figure 3, an embodiment according to the present invention, arc upstanding sidewall 520 can be that C-shaped is straight
Vertical side wall, and C-shaped upstanding sidewall has C-shaped inner surface 527.In addition, vertical extension member 420 is in contrast to horizontal-extending section 410
The one side of outer edge 412 has circular arc lateral wall 427, and vertical extension member 420 is towards horizontal-extending section 410 of outer edge 412
One side have upright strip lateral wall 425.It holds, in the assembling trapezoidal light-guiding pillar 400 of class when on bottom case 500, bottom case 500
C-shaped inner surface 527 can be set close to the circular arc lateral wall 427 of the trapezoidal light-guiding pillar 400 of class, and the trapezoidal light-guiding pillar 400 of class is straight
Vertical strip lateral wall 425 is to just filling up the side wall notch 525 of bottom case 500.That is, vertical extension member 420 is by circular arc lateral wall
427 and more relevantly cater to C-shaped inner surface 527, and by upright strip lateral wall 425 to just filling up the side wall of bottom case 500
Notch 525 engages the trapezoidal light-guiding pillar 400 of class on arc upstanding sidewall 520, to avoid or reduce the trapezoidal light-guiding pillar 400 of class and shake
Rolling loosens.Therefore, the trapezoidal light-guiding pillar 400 of class more securely can agree with setting with arc upstanding sidewall 520.Further, by making
Upright strip lateral wall 425 also can be such that cyclic spring device 300 is sheathed on arc upstanding sidewall 520 positive side wall notch 525
Shi Buhui generates conflict with the trapezoidal light-guiding pillar 400 of class.However, above-listed merely illustrative, and the arc upstanding sidewall 520 of the present invention and
The form of the side wall of vertical extension member 420 is not limited to the aspect specifically illustrated at this.
It holds, referring to figs. 1 to Fig. 3, by the component of start column 200, cyclic spring device 300, the trapezoidal light-guiding pillar 400 of class etc.
Setting is installed between upper cover 100 and bottom case 500 and combines assembling upper cover 100 with that after bottom case 500, can be formed as shown in Figure 4
Press-key structure 20 assembling aspect.At this point, it also may pass through bottom case for conductive or the electrical information of conduction metallic laminas 600
500 extend downwardly, to be electrically connected (not shown in Fig. 4) with the circuit board of lower section.
It continues, Fig. 5 A and Fig. 5 B of the sectional view intercepted with reference to the line A-A ' along Fig. 4 has been assembled to be described in detail
Into press-key structure inside configuration.
Specifically, an embodiment according to the present invention, together with Fig. 1 to Fig. 4 with reference to Fig. 5 A and Fig. 5 B, be completed by
The vertical extension member 420 of the trapezoidal light-guiding pillar 400 of class of bond structure 20 is arranged at 520 inside of arc upstanding sidewall and (corresponds to side wall
Surrounding area 530), and horizontal-extending section 410 of the trapezoidal light-guiding pillar 400 of class (is enclosed from 520 inside of arc upstanding sidewall corresponding to side wall
Around area 530) extend to 520 outside of arc upstanding sidewall (corresponding to the non-surrounding area 540 of side wall).In addition, the column bottom of start column 200
Face 220 can be set the side wall surrounding area 530 of positive bottom case 500, and cyclic spring device 300 can surround arc upstanding sidewall 520
It sets (that is, being sheathed on arc upstanding sidewall 520).
An embodiment according to the present invention, the press-key structure 20 being completed can be further disposed on circuit board, and can
By the trapezoidal light-guiding pillar 400 of class the light that light source emits upwards on circuit board is guided to enter the column bottom surface 220 of start column 200.
Specifically, together with Fig. 2 with reference to Fig. 5 A and Fig. 5 B, when 20 installation settings of press-key structure is when on circuit board, circuit
Light source 700 and/or light source 800 (being represented by dotted lines) on plate can be to just horizontal extended segments 410.Therefore, by light source 700 and/or
The light that light source 800 is sent can be surrounded sequentially via the transmission of horizontal-extending section 410 and vertical extension member 420 into side wall
In area 530 (being shown in Fig. 2), and travelled upwardly from the top surface 422 of vertical extension member 420 and enter the column bottom surface of start column 200
In 220.
Specifically, in Fig. 5 A and Fig. 5 B, defined by the traveling of light, the trapezoidal light-guiding pillar 400 of class can have
Smooth surface 405, light source 700 light incidence the first incidence surface 416, light source 800 light incidence the second incidence surface 418,
One reflecting slant 417 and the second reflecting slant 419.
That is, horizontal-extending section 410 of the trapezoidal light-guiding pillar 400 of class of press-key structure 20 can have to enter towards light source or light
Penetrate first incidence surface 416 and the second incidence surface 418 at place.First incidence surface 416 is located relatively at center-side 414, the second incidence surface
418 are located relatively at outer edge 412, and the second incidence surface 418 is adjacent to the first incidence surface 416.Specifically, the first incidence surface
416 is corresponding positioned at the part of side wall surrounding area 530 in horizontal-extending section 410 of bottom surface, and the second incidence surface 418 prolongs for level
It stretches corresponding positioned at the part of the non-surrounding area 540 of side wall in the bottom surface of section 410.In other words, the first incidence surface 416 can be horizontal-extending
The bottom surface of section 410 and the 420 corresponding part of upright projection scope overlapping of vertical extension member, and the second incidence surface 418 can be level
The bottom surface of extended segment 410 and the underlapped corresponding part of 420 upright projection scope of vertical extension member.In addition, light-emitting surface 405 is located at
The top surface 422 of vertical extension member 420, and the first incidence surface 416 is opposite with light-emitting surface 405.It holds, the first reflecting slant 417
In the side of the first incidence surface 416, and the second reflecting slant 419 and the first reflecting slant 417 are opposite.
By this structure, together with Fig. 5 A and Fig. 5 B with reference to Fig. 6, when light source (such as light source 700) is located under the first incidence surface 416
Fang Shi, most of light substantially straight line can travel upwardly and reach (that is, the light-emitting surface of top surface 422 of vertical extension member 420
405)；And when light source (such as light source 800) is located at the second 418 lower section of incidence surface, most of light can substantially pass plural time
It reflects and advances and reach the top surface 422 (that is, light-emitting surface 405) of vertical extension member 420.
It specifically, can be sequentially via the second reflecting slant by the incident most of light L1 and L2 of the second incidence surface 418
419 and first reflecting slant 417 (light L1) or vertical extension member 420 side (light L2) reflection and from light-emitting surface 405
Transmitting.In addition, as described above, by the incident most of light L3 of the first incidence surface 416 then can straight line travel upwardly and from light extraction
Face 405 emits.Therefore, in addition to from the incident light in side wall surrounding area 530, the trapezoidal light-guiding pillar 400 of class can also assist will be certainly
The non-surrounding area 540 of side wall (corresponding to the second incidence surface 418), incident light was guided to the start column to positive side wall surrounding area 530
200 column bottom surface 220, so as to promote the light quantity for being directed to column bottom surface 220.That is, enter light in the first incidence surface 416 and second
In the case of can all setting light source under face 418, the trapezoidal light-guiding pillar 400 of class may be guided from the first incidence surface 416 and the second incidence surface
418 incident light are to light-emitting surface 405, so as to promote guide-lighting amount and amount of light；And due to the limitation of various structures or condition
In the case that limitation is so that light source is only capable of being arranged at the first incidence surface 416 or the second incidence surface 418 times, the trapezoidal light-guiding pillar 400 of class
Also it can correspondingly arrange in pairs or groups and guide light, same press-key structure is allowed to be applicable in the different light source positions at least two printed circuit board (PCB)s
It puts, so as to improve this press-key structure configuration elasticity and application.
Here, for example, light source 700 and/or light source 800 can be that top luminous upwards is light-emitting LED, but the present invention is unlimited
In this.
In addition, according to some embodiments of the present invention, as shown in Figure 5A, the above-mentioned vertical extension member that can be used to reflection light
420 side between 405 and first reflecting slant 417 of light-emitting surface can be curved surface (such as circular arc lateral wall 427).Therefore,
The side of vertical extension member 420 can have wider and light reflection surface evenly, and side is reflexed to so as to avoid or reduce light
When reflected by corner part towards unintended sites.However, above-mentioned curved surface is merely illustrative, and the vertical extension member of the present invention
420 planform is without being limited thereto.That is, according to other embodiments of the invention, enter in the first incidence surface 416 of satisfaction and second
The area of the summation of smooth surface 418 is more than the area of light-emitting surface 405 or the second incidence surface 418 extends beyond vertical extension member 420
Upright projection scope and make the trapezoidal light-guiding pillar of class similar or close to essence it is trapezoidal under, the trapezoidal light-guiding pillar of class according to the present invention can
With variously-shaped and side moulding.For example, the vertical extension member of the trapezoidal light-guiding pillar of class can be circular, polygonal or not
The cylinder of regular shape, and horizontal-extending section of the trapezoidal light-guiding pillar of class can be section shape cylinder triangular in shape or trapezoidal.
As described above, for example, referring to Fig. 7 A and Fig. 7 B, the trapezoidal light-guiding pillar of class according to another embodiment of the present invention
400 ', the second reflecting slant 419 ' can extend directly to light-emitting surface 405 from outer edge 412.Therefore, compared to shown in Fig. 1 to Fig. 6
The trapezoidal light-guiding pillar 400 of class, the trapezoidal light-guiding pillar 400 ' of class do not possess apparent vertical extension member 420 and horizontal-extending section 410
Boundary.
In the case, an embodiment according to the present invention, with reference to Fig. 8, in the button for including the trapezoidal light-guiding pillar 400 ' of class
In structure 30, whether the vertical extension member 420 of the trapezoidal light-guiding pillar 400 ' of class and horizontal-extending section 410 can be as mentioned before by falling
It is defined in the region that arc upstanding sidewall 520 is surrounded.That is, it is upwardly extended from horizontal-extending section 410 along Z axis vertical
Extended segment 420 is completely set up in side wall surrounding area 530, and horizontal-extending section 410 extended along X-axis do not surround from side wall
Area 540 extends to side wall surrounding area 530.
By this structure, together with Fig. 8 with reference to Fig. 9, when light source (such as light source 700) is located at the first 416 lower section of incidence surface, greatly
Some light can straight line travel upwardly and reach the top surface 422 (that is, light-emitting surface 405) of vertical extension member 420；And work as light source
When (such as light source 800) is located at the second 418 lower section of incidence surface, most of light passes through plural secondary reflection and arrival of advancing extends vertically
The top surface 422 (that is, light-emitting surface 405) of section 420.
It specifically, can be sequentially via the second reflecting slant 419 ' and the by the incident light L1 of the second incidence surface 418
One reflecting slant 417 is reflected and emitted from light-emitting surface 405.Alternatively, it can repeatedly be passed through by the incident light L2 of the second incidence surface 418
It is anti-by the side of the second reflecting slant 419 ' and vertical extension member 420 between 405 and first reflecting slant 417 of light-emitting surface
It penetrates and emits from light-emitting surface 405.In addition, by the incident light L3 of the first incidence surface 416 then can straight line travel upwardly and go out to oneself
Smooth surface 405 emits.Further, due to the second reflecting slant 419 ' of extension elongation, deviate between light source 700 and 800 and dissipate
The light L4 penetrated can also be reflected by the second reflecting slant 419 ' for extending to vertical extension member 420 and towards 405 row of light-emitting surface
Into.Therefore, loss optically can be reduced or avoided.
That is, the trapezoidal light-guiding pillar 400 ' of class according to this embodiment of the invention, due to towards vertical extension member 420 and light extraction
Second reflecting slant 419 ' of the extension elongation of face 405, can improve different angle light leak and be reflected the energy for leading back to light-emitting surface 405
Power.Therefore, in the case where the configuration structure comprising 300 grade components of cyclic spring device allows, it may extend away the second reflecting slant of elongation
419 ' the loss to be further reduced during leaded light optically, so as to improve optical effect.
Hold above-mentioned, similar to the trapezoidal light-guiding pillar 400 of class, in addition to from the incident light in side wall surrounding area 530, class is trapezoidal
Light-guiding pillar 400 ' can also assist to guide to right from the non-surrounding area 540 of side wall (corresponding to the second incidence surface 418) incident light
The column bottom surface 220 of the start column 200 of positive side wall surrounding area 530, so as to promote the light quantity for being directed to column bottom surface 220.That is,
In the case of can all setting light source under first incidence surface 416 and the second incidence surface 418, the trapezoidal light-guiding pillar 400 ' of class may be guided from
One incidence surface 416 and the incident light of the second incidence surface 418 are to light-emitting surface 405, so as to promote guide-lighting amount and amount of light；And
Since the limitation of various structures or condition are limited so that light source is only capable of being arranged under the first incidence surface 416 or the second incidence surface 418
In the case of, the trapezoidal light-guiding pillar 400 ' of class also can correspondingly arrange in pairs or groups and guide light, and same press-key structure is allowed to be applicable at least two prints
Different light source positions on printed circuit board, so as to improve this press-key structure configuration elasticity and application.
Next, with reference to Figure 10, by Fig. 1 to the press-key structure of each embodiment shown in Fig. 9, except for being arranged at circuit board
It is upper outer, also can further it be combined to form with a keycap 1000 as button 40.Under this arrangement, keycap 1000 is connected to start column
200 capital face 210.Therefore, user related by pressing keycap 1000 can be realized and pressed by the start column 200 of depression
The start of key 40.Opposite, when press-key structure installation settings as described above is when on circuit board, light can be in entrance start column
Continue to travel up to capital face 210 behind 200 column bottom surface 220 (as with reference to shown in Fig. 6 or Fig. 9) and thus illuminate keycap
1000.Therefore, user can so as to experience 1000 light transmission of keycap of button 40 or shine.
Another embodiment according to the present invention, with reference to Figure 11, the bottom case 500 of press-key structure 50 can further have opposite bottom
The detent mechanism 535 that shell inner surface 510 protrudes, and in completed assembled press-key structure 50, detent mechanism 535 can set and be adjacent to
Horizontal-extending section to position the trapezoidal light-guiding pillar of class.Specifically, together with Figure 11 with reference to Figure 12, another implementation according to the present invention
Example, the trapezoidal light-guiding pillar 900 or 900 of class ' can further include a pair of of positioning tabs 935 or 935 ' in horizontal-extending section 420 two
Side, and positioning tabs 935 or 935 ' with the trapezoidal light-guiding pillar 900 or 900 of class ' bottom surface be separated by one and intersegmental protruded outward away from place.
Therefore, together with Figure 11 with reference to Figure 12, when setting the trapezoidal light-guiding pillar 900 or 900 of class ' in bottom opening 505 when, positioning
Mechanism 535 can support this to positioning tabs 935 or 935 ' bottom, use positioning or the trapezoidal light-guiding pillar 900 or 900 of fixed class '
Extend to horizontal-extending section 420 of the non-surrounding area 540 of side wall.From the above, can be reduced or avoided not by arc upstanding sidewall 520
Surround positioning horizontal-extending section 420 gets loose or moves.
In summary, with reference to as each embodiment shown in Fig. 1 to Figure 12, since press-key structure can shine or light transmission, therefore use
When family uses press-key structure, press-key structure can be more clearly recognized.Therefore, can be reduced or avoided under various states (such as but
Be not limited in pitch-dark or dim environment) using button when false touch or press by mistake, so as to improve the accuracy of operation button.Except this
Outside, since such as video game player may expect luminous keys to increase interest during operation button in game, also
Or user may expect luminous keys to change the demands such as surroundings situation or style, it is according to the present invention luminous or light transmission
Press-key structure also can be used to promote the aesthetic appearance of button, promote visual texture or strengthen visual stimulus, have this phase so as to meet
The user of pass demand.
By the above detailed description of preferred embodiments, it is intended to more clearly describe the feature of the present invention with spiritual,
And not protection scope of the present invention is any limitation as with above-mentioned disclosed preferred embodiment.On the contrary, its purpose
It is intended to cover various changes and has being arranged in the scope of the claims of the invention to be applied of equality.Cause
This, scope of the claims of the invention should be according to the above-mentioned explanation for illustrating that work is most broad, it to be caused to cover institute
Possible change and the arrangement of tool equality.
Claims (12)
1. a kind of press-key structure, for setting on circuit boards, which has light source, which emits beam, and feature exists
It is included in the press-key structure：
Upper cover；
Bottom case, the upper cover are combined with the bottom case, which has bottom case inner surface, arc upstanding sidewall and bottom opening, the arc
Shape upstanding sidewall has side wall notch, which is divided into side wall surrounding area by the bottom case inner surface section and is not enclosed with side wall
Around area, which is formed at the bottom case inner surface and is turned on the side wall notch, which does not surround from the side wall
Area extends to the side wall surrounding area；
Start column, the start column have column bottom surface, which can move up and down compared with the upper cover, and the column bottom surface was to just should
Side wall surrounding area；
Cyclic spring device is arranged at the bottom case and the start intercolumniation and around the arc upstanding sidewall, the cyclic spring device
Push up the start column；And
The trapezoidal light-guiding pillar of class, such trapezoidal light-guiding pillar have horizontal-extending section and vertical extension member, this horizontal-extending section with outer
Acies and center-side, this horizontal-extending section is arranged in the bottom opening, which is located at the non-surrounding area of the side wall, the center
End is located at the side wall surrounding area, which is arranged in the arc upstanding sidewall；
Wherein when the press-key structure is set on the board, the light source to just this horizontal-extending section, the light sequentially via
The transmission of this horizontal-extending section and the vertical extension member and enter in the side wall surrounding area, and from the top surface of the vertical extension member to
In uplink and then the entrance column bottom surface.
2. press-key structure according to claim 1, it is characterised in that：The press-key structure further includes keycap, the start
Column further has capital face, which is connected to the capital face, which continues to travel up to this after entering the column bottom surface
Capital face and illuminate the keycap.
3. press-key structure according to claim 1, it is characterised in that：The arc upstanding sidewall be C-shaped upstanding sidewall, the C
Shape upstanding sidewall has C-shaped inner surface, which has circular arc lateral wall, and the C-shaped inner surface is close on the outside of the circular arc
Wall.
4. press-key structure according to claim 3, it is characterised in that：The vertical extension member further has outside upright strip
Side wall, the upright strip lateral wall is to just filling up the side wall notch.
5. press-key structure according to claim 1, it is characterised in that：This horizontal-extending section has the first incidence surface and second
Incidence surface, first incidence surface are located at the center-side, which is located at the outer edge, first enter when the light source is located at this
When below smooth surface, which travels upwardly and reaches the top surface of the vertical extension member, second enters when the light source is located at this
When below smooth surface, which advances by plural secondary reflection and reaches the top surface of the vertical extension member.
6. press-key structure according to claim 1, it is characterised in that：There is such trapezoidal light-guiding pillar light-emitting surface, first to enter
Smooth surface, the second incidence surface, the first reflecting slant and the second reflecting slant；
Wherein, which is located at the top surface of the vertical extension member, and first incidence surface is opposite with the light-emitting surface, this second enters
Smooth surface is adjacent to first incidence surface, which is located at the side of first incidence surface, and second reflecting slant
It is opposite with first reflecting slant.
7. press-key structure according to claim 6, it is characterised in that：It is sequentially passed through by the light of second incidence surface incidence
By second reflecting slant and the reflection of the side of first reflecting slant or the vertical extension member from the light extraction surface launching.
8. press-key structure according to claim 6, it is characterised in that：The vertical extension member between the light-emitting surface and this first
Side between reflecting slant is curved surface.
9. press-key structure according to claim 1, it is characterised in that：The bottom case further has the opposite bottom case inner surface
Prominent detent mechanism, and detent mechanism setting is adjacent to this horizontal-extending section to position such trapezoidal light-guiding pillar.
10. press-key structure according to claim 9, it is characterised in that：Such trapezoidal light-guiding pillar further includes a pair of fixed
Position fin, this is arranged at positioning tabs horizontal-extending section of the both sides, and sets such trapezoidal light-guiding pillar in the bottom opening
When the detent mechanism support this to positioning tabs.
11. press-key structure according to claim 1, it is characterised in that：The vertical extension member is for circular, polygonal or not
The cylinder of regular shape, and this horizontal-extending section is section shape cylinder triangular in shape or trapezoidal.
12. press-key structure according to claim 1, it is characterised in that：Such trapezoidal light-guiding pillar is L-type light-guiding pillar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711484388.7A CN108091510B (en) | 2017-12-29 | 2017-12-29 | Press-key structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711484388.7A CN108091510B (en) | 2017-12-29 | 2017-12-29 | Press-key structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108091510A true CN108091510A (en) | 2018-05-29 |
| CN108091510B CN108091510B (en) | 2019-06-04 |
Family
ID=62181325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711484388.7A Active CN108091510B (en) | 2017-12-29 | 2017-12-29 | Press-key structure |
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| Country | Link |
|---|---|
| CN (1) | CN108091510B (en) |
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| US11469060B1 (en) | 2021-04-30 | 2022-10-11 | Logitech Europe S.A. | Light guide for a keyboard |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108091510B (en) | 2019-06-04 |
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