CN106847594A - A kind of ultrathin key switching structure with pressing paragraph sense - Google Patents

A kind of ultrathin key switching structure with pressing paragraph sense Download PDF

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Publication number
CN106847594A
CN106847594A CN201611137937.9A CN201611137937A CN106847594A CN 106847594 A CN106847594 A CN 106847594A CN 201611137937 A CN201611137937 A CN 201611137937A CN 106847594 A CN106847594 A CN 106847594A
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CN
China
Prior art keywords
curved portions
keycap
key switching
paragraph sense
pressing paragraph
Prior art date
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Granted
Application number
CN201611137937.9A
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Chinese (zh)
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CN106847594B (en
Inventor
郎欢标
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MIKOLTA OPTOELECTRONIC TECHNOLOGY Co Ltd
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MIKOLTA OPTOELECTRONIC TECHNOLOGY Co Ltd
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Priority to CN201611137937.9A priority Critical patent/CN106847594B/en
Publication of CN106847594A publication Critical patent/CN106847594A/en
Application granted granted Critical
Publication of CN106847594B publication Critical patent/CN106847594B/en
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Classifications

    • 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
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
    • H01H13/705—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/941—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated using an optical detector
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/008—Actuators other then push button
    • H01H2221/016—Lever; Rocker
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2235/00—Springs
    • H01H2235/028—Blade spring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2239/00—Miscellaneous
    • H01H2239/022—Miscellaneous with opto-electronic switch

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  • Push-Button Switches (AREA)

Abstract

The present invention relates to a kind of ultrathin key switching structure with pressing paragraph sense, including the keycap, base and the circuit board that are sequentially connected from top to bottom, two mutually symmetrical with swing components are provided between keycap and base, base is provided with elastic component, the outer end position of swing component is higher than the inner position of swing component, and circuit board is provided with infrared transmitting tube and infrared receiving tube；During pressing keycap, keycap drives two outer ends of swing component to lower swing so that the inner of two swing components is swung up so that infrared transmitting tube changes with the light transmission state of infrared receiving tube, realizes the electric signal transmission of circuit board；When unclamping keycap, two the inner of swing component return to original position under the screen resilience effect of elastic component so that the outer end of two swing components returns to original position, finally causes that keycap returns to original position；The key switching structure can produce pressing paragraph sense when pressing, and the control function with switch uses comfortable, long service life.

Description

A kind of ultrathin key switching structure with pressing paragraph sense
Technical field
The present invention relates to electronic device member technical field, and in particular to a kind of ultrathin button with pressing paragraph sense Construction of switch.
Background technology
Currently a popular laptop and panel computer requirement fuselage are slim, durable and safe.As input The keyboard of device can occupy the major part of laptop or panel computer inside free space, the design of new product The size for reducing keyboard as much as possible and the structure for simplifying keyboard are often required that with promoting.To meet laptop The increasingly harsher requirement with panel computer, Apple Inc. propose Publication No. CN 203588895U a kind of key mechanism and The patent of butterfly component, for providing the key mechanism for improving design.Specifically, the key mechanism of the patent includes：Keycap component； Supporting construction；And butterfly hinge, the butterfly hinge includes the adjacent two single alar parts in position so that between two alar parts Cavity is formed, each alar part includes a pair of trunnions and a pair of keys cap assembly pin, wherein, trunnion is coupled with supporting construction, also, keycap Component pin is coupled with keycap component.One of the patent Example has technical effect that the key mechanism design for providing and improving.Its skill Art is characterized as：Butterfly hinge, two alar parts, respectively there is a pair of trunnions on alar part, respectively there is a pair of keys cap assembly pin, two wings on alar part The coupling hinge that portion links together, two the middle of alar part form cavity, and trunnion is coupled with supporting construction, a pair of keys cap assembly Pin is coupled with keycap, is rotated around the trunnion of its own in keystroke procedure.
The patent of Apple Inc. provides the key mechanism design for improving, and for example it can realize low travel distance and desired Haptic response.Key mechanism is designed using the double-vane portion for being moved between pressing position and non-pushed position.Switch can be in key Mechanism upwardly biases keycap component when being not subjected to thump event.Its technical characteristics is two single alar parts, by centre Coupling hinge (hinges being easily bent, gear intersect lever hinge) connect and form butterfly hinge together Structure, is respectively arranged a pair of trunnions and a pair of keys cap assembly pin, trunnion and supporting construction on this butterfly hinge on two alar parts Couple and install, keycap couples installation with the keycap component pin of two alar parts, when in use when the center or edge of pressing keycap And the position such as corner (center, on, under, left, right, the upper left corner, the upper right corner, the lower left corner, nine location points such as lower right corner) when, due to Two alar parts can realize that the synchronization for comparing balance is pushed or risen for living-hinge butterfly mechanism, while this butterfly hinge formula Key mechanism is more steady when keycap can be allowed to press, it is not easy to incline, and makes input more accurate when the different position of keycap presses, and subtracts Error when being input into less.
However, because the patent employs butterfly hinge Shi Jian mechanisms, it has following unsurmountable defect：Itself Do not possess the function of pressing paragraph sense, and without the control function of switch, to realize the function and product of input through keyboard switch The raw paragraph sense (allowing user to differentiate the location point with aware switch conducting) for pressing is, it is necessary to additionally assemble a traditional dome Switch.It is well known that the pressing force of dome switch is larger (according to the permanent use habit of human body, the keyboard switch that user likes Pressing force be 45-60 grams or so, and the pressing force of dome switch is generally 80-160 grams or so), and pressing stroke is very Short (being 0.30-0.45mm from the stroke for starting to be pressed into triggering), causes user's feel in input operation not good, short stroke People is allowed to feel to constrain the free push action of finger with heavier pressing force, it is easy to cause the wrist fatigue of user.Together When, the service life of dome switch is 100-500 ten thousand times or so, easily occurs fatigability damage during user's Reusability And fail, causing the cost of after-sale service increases, and brings many not convenient to user, is unfavorable for large-scale popularization with application.
The content of the invention
The purpose of the present invention is directed to above-mentioned deficiency of the prior art, there is provided a kind of ultrathin type with pressing paragraph sense Key switching structure, the key switching structure can produce pressing paragraph sense when pressing, the control function with switch, Pressing force is suitable, and pressing stroke is suitable, it is not easy to cause the wrist fatigue of user, and long service life reduces after-sale service Cost, be conducive to large-scale popularization with application.
The purpose of the present invention is achieved through the following technical solutions.
A kind of ultrathin key switching structure with pressing paragraph sense, including keycap, the bottom being sequentially connected from top to bottom Seat and circuit board, are provided with two mutually symmetrical with swing components, two outer ends of swing component point between the keycap and the base It is not fixedly connected with the keycap, the base is provided with elastic component, the inner of two swing components is fixed with the elastic component respectively Connection, the outer end position of swing component is higher than the inner position of swing component, and circuit board is provided with infrared transmitting tube and red Outer reception pipe；
When keycap is pressed, keycap drives two outer ends of swing component to lower swing, so that two swing components The inner be swung up, and cause infrared transmitting tube changed with the light transmission state of infrared receiving tube, realize circuit The electric signal transmission of plate；
When keycap is unclamped, two the inner of swing component return to original position under the screen resilience effect of elastic component so that The outer end of two swing components returns to original position, finally causes that keycap returns to original position.
Wherein, the keycap includes panel, and the panel bottom is respectively provided on two sides with least two keycap clips.
Wherein, the panel bottom is respectively provided on two sides with least two keycap grabs.
Wherein, the base includes base plate, and the position of the upper surface correspondence keycap grab of the base plate is respectively equipped with Base grab, a base grab and a keycap grab correspond snapping.
Wherein, the centre position of the base plate is provided with hollow-out parts.
Wherein, the clinohedral being respectively arranged at two ends with for limiting elastomer of the hollow-out parts, clinohedral is with base plate integrally Shaping.
Wherein, the top of the clinohedral offers the slit for connecting elastomer.
Wherein, the swing component includes inboard Sinks parallel to each other, outer link and orthogonal with inboard Sinks Two counter-jibs, the inboard Sinks, the outer link and two counter-jibs enclose a square box, the keycap of homonymy Clip is connected with the outer link of homonymy.
Wherein, the upper surface of the base plate is respectively provided on two sides with swing component locating part, and the swing component locating part includes Mutually perpendicular first riser and the second riser, the second riser are connected to the middle part of the first riser, first riser and described Second riser is abutted so as to realize to the spacing of swing component with the inner of the counter-jib respectively.
Wherein, the plate upper surface is respectively provided on two sides with two base plate fulcrums.
Wherein, the both sides of the plate upper surface offer two bottom plate grooves respectively.
Wherein, the plate upper surface is respectively provided on two sides with two axle sleeves.
Wherein, the inboard Sinks middle part is provided with connecting rod locating piece towards the side of the outer link.
Wherein, the inboard Sinks middle part is provided with two pin locating pieces back to the side of the outer link.
Wherein, the bottom surface of each counter-jib is respectively equipped with counter-jib groove, and a base plate fulcrum correspondence is absorbed in a balance In arm groove.
Wherein, the bottom surface of each counter-jib is respectively equipped with counter-jib fulcrum, and a counter-jib fulcrum correspondence is absorbed in a bottom In plate groove.
Wherein, the bottom surface in the middle part of the inboard Sinks is provided with two limited blocks, one of limited block and the one of hollow-out parts Side wall is abutted, and another limited block is abutted with the opposite side wall of hollow-out parts.
Wherein, the medial surface of the counter-jib is provided with short axle, and a short axle connects one to one with an axle sleeve.
Wherein, the inboard Sinks middle part is provided with connecting rod locating piece towards the side of the outer link.
Wherein, the inboard Sinks middle part is provided with two pin locating pieces back to the side of the outer link.
Wherein, the bottom surface in the middle part of the inboard Sinks is provided with two limited blocks, one of limited block and the one of hollow-out parts Side wall is abutted, and another limited block is abutted with the opposite side wall of hollow-out parts.
Wherein, the bottom surface in the middle part of the inboard Sinks is provided with two limited blocks, one of limited block and the one of hollow-out parts Side wall is abutted, and another limited block is abutted with the opposite side wall of hollow-out parts.
Wherein, the inboard Sinks are provided with the connecting rod gap passed through for elastic component.
Wherein, the connecting rod gap is L-shaped.
Wherein, gripping block is additionally provided between the keycap and the base, institute is each passed through in the middle part of two inboard Sinks State gripping block.
Wherein, the both sides of the gripping block offer gripping block gap respectively.
Wherein, the elastic component includes from left to right integrally formed first curved portions, flat part and the second curved portions, institute State flat part to be affixed with the upper surface of inboard Sinks, the outer end of first curved portions is inserted in one of the narrow of clinohedral top In seam, the outer end of second curved portions is inserted in the slit on another clinohedral top.
Wherein, the inner middle part of first curved portions downwardly turns over to form the first engaging portion, in second curved portions Downwardly turn over to form the second engaging portion in the middle part of end, first engaging portion and a connecting rod locating piece snapping, second button Socket part and another connecting rod locating piece snapping.
Wherein, the elastic component includes from left to right integrally formed first elastic force adjustment portion, the first curved portions, the second arc The following table of shape portion, flat part, the 3rd curved portions, the 4th curved portions and the second elastic force adjustment portion, the flat part and inboard Sinks Face is affixed, and the first elastic force adjustment portion is inserted in one of in the slit on clinohedral top, and the second elastic force adjustment portion is inserted In entering the slit on another clinohedral top.
Wherein, the inner middle part of second curved portions is provided with the first engaging portion, the inner middle part of the 3rd curved portions It is provided with the second engaging portion, first engaging portion and a connecting rod locating piece snapping, second engaging portion and another connecting rod Locating piece snapping.
Wherein, the elastic component includes from left to right integrally formed first curved portions, flat part and the second curved portions, institute State flat part to be affixed with the upper surface of inboard Sinks, the outer end of first curved portions is inserted in one of the narrow of clinohedral top In seam, the outer end of second curved portions is inserted in the slit on another clinohedral top.
Wherein, the flat part offers through hole, and the through hole is provided with pin, two inboard Sinks by pin with it is described Flat part is fixedly connected.
Wherein, four medial surfaces of pin locating piece are abutted with the pin respectively.
Wherein, the elastic component includes from left to right integrally formed first curved portions, the second curved portions, flat part, the Three curved portions and the 4th curved portions, the outer end of first curved portions are inserted in one of in the slit on clinohedral top, described The outer end of the 4th curved portions is inserted in the slit on another clinohedral top, and one of inboard Sinks are located in second arc Between shape portion and the flat part, another inboard Sinks is located between the 3rd curved portions and the flat part.
Wherein, the longitudinal section of the assembly of second curved portions, the flat part and the 3rd curved portions is in " work " Font.
Wherein, the elastic component includes from left to right integrally formed first curved portions, the second curved portions, flat part, the Three curved portions and the 4th curved portions, the outer end of first curved portions are inserted in one of in the slit on clinohedral top, described The outer end of the 4th curved portions is inserted in the slit on another clinohedral top, and one of inboard Sinks are located in second arc Between shape portion and the flat part, another inboard Sinks is located between the 3rd curved portions and the flat part.
Wherein, the longitudinal section of the assembly of second curved portions, the flat part and the 3rd curved portions is in " work " Font.
Wherein, the elastic component includes from left to right integrally formed first curved portions, link joint feature and the second arc Portion, the link joint feature passes through two connecting rod gaps respectively, and the outer end of first curved portions is inserted in one of clinohedral In the slit on top, the outer end of second curved portions is inserted in the slit on another clinohedral top.
Wherein, the link joint feature includes from left to right integrally formed first connection board, connection transverse slat and second Connection board, first connection board and second connection board are vertical with the connection transverse slat respectively.
Wherein, the elastic component includes the first arcuate member and the second arcuate member, and it is inserted in the outer end of first arcuate member In in the slit on clinohedral top, the outer end of second arcuate member is inserted in the slit on another clinohedral top, institute The inner for stating the first arcuate member is inserted in one of in gripping block gap, and another clamping is inserted in the inner of second arcuate member In block gap.
Wherein, the elastic component includes upper shell fragment and lower shell fragment, and two inboard Sinks are located in the upper shell fragment and institute State between the middle part of lower shell fragment, the upper shell fragment is fixedly connected with the lower shell fragment.
Wherein, the upper shell fragment includes from left to right integrally formed first curved portions, upper flat plate portion and the second curved portions, The upper flat plate portion is affixed with the upper surface of inboard Sinks, and the outer end of first curved portions is inserted in one of clinohedral top Slit in, the outer end of second curved portions is inserted in the slit on another clinohedral top.
Wherein, the lower shell fragment includes from left to right integrally formed 3rd curved portions, lower flat part and the 4th curved portions, The lower flat part is affixed with the lower surface of inboard Sinks, and the outer end of the 3rd curved portions is inserted in one of clinohedral top Slit in, the outer end of the 4th curved portions is inserted in the slit on another clinohedral top.
Wherein, the inner middle part of first curved portions offers the first snapping mouthful, in described second curved portions the inner Portion offers the second snapping mouthful, and the inner middle part of the 3rd curved portions is flipped up forming the first engaging portion, the 4th arc The inner middle part in shape portion is flipped up forming the second engaging portion, first engaging portion and first snapping mouthful snapping, described Second engaging portion and second snapping mouthful snapping.
Wherein, the elastic component includes flexure strip and elastic tube, and two inboard Sinks are located in the flexure strip and institute State between elastic tube, the flexure strip is fixedly connected with the elastic tube.
Wherein, the flexure strip includes from left to right integrally formed first curved portions, flat part and the second curved portions, institute State flat part to be affixed with the lower surface of inboard Sinks or upper surface, the outer end of first curved portions is inserted in one of clinohedral In the slit on top, the outer end of second curved portions is inserted in the slit on another clinohedral top.
Wherein, the elastic tube is curved.
Wherein, the inner middle part of first curved portions offers the first card interface, in described second curved portions the inner Portion offers the second card interface, one end of the elastic tube and the first card interface clamping, the other end of the elastic tube with The second card interface clamping.
Wherein, optical prism is fixedly connected with the middle part of the outer link, one of optical prism is located at infrared hair The surface of pipe is penetrated, another optical prism is located at the surface of infrared receiving tube.
Wherein, the optical prism is freeform optics prism.
Wherein, the reflecting surface of the freeform optics prism be free form surface, the free form surface be quadratic surface or Off axis paraboloid mirror, the free form surface also acts as the effect for assembling light in addition to light is transferred.
Wherein, the optical prism is right-angled triangular prism, and the infrared transmitting tube and the infrared receiving tube are just gone up Side is respectively equipped with aspherical Quasi-straight light-focusing lens, and aspherical Quasi-straight light-focusing lens are located at the underface of right-angled triangular prism.
Wherein, the reflecting surface of the right-angled triangular prism is 45 degree of planes of inclination.
Wherein, the aspherical Quasi-straight light-focusing lens are made up of upper and lower two the aspherical of projection.
Wherein, the optical prism is right-angled triangular prism, and the infrared transmitting tube and the infrared receiving tube are just gone up Side is respectively equipped with Fresnel Quasi-straight light-focusing lens, and Fresnel Quasi-straight light-focusing lens are located at the underface of right-angled triangular prism.
Wherein, the reflecting surface of the right-angled triangular prism is 45 degree of planes of inclination.
Wherein, the upper surface of the Fresnel Quasi-straight light-focusing lens is ring grain Fresnel surface, the Fresnel Quasi-straight light-focusing The lower surface of lens is aspherical or sphere.
Wherein, free-form surface mirror, one of free form surface reflection are fixedly connected with the middle part of the outer link , located at the surface of infrared transmitting tube, another free-form surface mirror is located at the surface of infrared receiving tube, and this is freely bent for mirror Face speculum plays a part of optically focused and turnover light path simultaneously.
Wherein, plane mirror is fixedly connected with the middle part of the outer link, one of plane mirror is located at red The surface of emission pipe, another plane mirror is located at the surface of infrared receiving tube, the infrared transmitting tube and described Aspherical Quasi-straight light-focusing lens are respectively equipped with directly over infrared receiving tube, aspherical Quasi-straight light-focusing lens are located at plane mirror Underface.
Wherein, to incline 45 degree of planes, the reflecting surface is coated with metallic reflective coating or Jie to the reflecting surface of the plane mirror Matter reflectance coating.
Wherein, the aspherical Quasi-straight light-focusing lens are made up of upper and lower two the aspherical of projection.
Wherein, plane mirror is fixedly connected with the middle part of the outer link, one of plane mirror is located at red The surface of emission pipe, another plane mirror is located at the surface of infrared receiving tube, the infrared transmitting tube and described Fresnel Quasi-straight light-focusing lens are respectively equipped with directly over infrared receiving tube, Fresnel Quasi-straight light-focusing lens are located at plane mirror Underface.
Wherein, to incline 45 degree of planes, the reflecting surface is coated with metallic reflective coating or Jie to the reflecting surface of the plane mirror Matter reflectance coating.
Wherein, the upper surface of the Fresnel Quasi-straight light-focusing lens is ring grain Fresnel surface, the Fresnel Quasi-straight light-focusing The lower surface of lens is aspherical or sphere.
Wherein, the infrared transmitting tube is the luminous infrared transmitting tube in side, and the infrared receiving tube is that side joint receives infrared receiver Pipe, the infrared transmitting tube is oppositely arranged with the infrared receiving tube.
Wherein, the infrared transmitting tube is upper luminous infrared transmitting tube, and the infrared receiving tube is upper reception infrared receiver Pipe.
Wherein, the infrared transmitting tube is upper luminous infrared transmitting tube, and the infrared receiving tube is upper reception infrared receiver Pipe.
Wherein, keycap character illumination LED is additionally provided with the circuit board.
Beneficial effects of the present invention：
1st, this key switching structure has been provided with pressing the function that paragraph sense and automatic rebounding reset in itself, adds without another Dome switch is aided in, with very big progressive；
2nd, with reference to optoelectronic switch (infrared transmitting tube and infrared receiving tube), the abrasion without physics conductive contact, service life Reach more than 50,000,000 times, the life-span compared to the patent formula of Apple Inc. greatly improves；
3rd, using the arch shrapnel structure with Double curved arc structure, pressing force is between 45-60 grams, pressing stroke is 0.7- Between 2mm, the input habit that user likes can be reached, input is more easily and accurate；
4th, the light path control mode of optoelectronic switch is used and allows light path to keep normal open under static state, the wink when keycap is pressed Between by light path cut-out (two optical prisms in the middle part of outer link are arranged at by staggering so that positioned at infrared transmitting tube top The light that infrared transmitting tube can not be shot out of optical prism be refracted to optical prism above infrared receiving tube so that Prevent infrared receiving tube is from receiving the light that infrared transmitting tube is emitted), so as to realize the conducting and disconnection of switch Function, this structure can avoid the problem of the dysfunction caused by the interference of external light source.
Brief description of the drawings
Invention is described further using accompanying drawing, but embodiment in accompanying drawing does not constitute any limitation of the invention, For one of ordinary skill in the art, on the premise of not paying creative work, it can also be obtained according to the following drawings Its accompanying drawing.
Fig. 1 is the decomposition texture schematic diagram of embodiment 1.
Fig. 2 is the structural representation after embodiment 1 hides keycap.
Fig. 3 is the decomposition texture schematic diagram at another visual angle of embodiment 1.
Fig. 4 is the sectional view of embodiment 1.
Fig. 5 is the decomposition texture schematic diagram of embodiment 2.
Fig. 6 is the decomposition texture schematic diagram at another visual angle of embodiment 2.
Fig. 7 is the sectional view of embodiment 2.
Fig. 8 is the decomposition texture schematic diagram of embodiment 3.
Fig. 9 is the decomposition texture schematic diagram at another visual angle of embodiment 3.
Figure 10 is the sectional view of embodiment 3.
Figure 11 is the decomposition texture schematic diagram of embodiment 4.
Figure 12 is the decomposition texture schematic diagram at another visual angle of embodiment 4.
Figure 13 is the structural representation after embodiment 4 hides keycap.
Figure 14 is the sectional view of embodiment 4.
Figure 15 is the decomposition texture schematic diagram of embodiment 5.
Figure 16 is the sectional view of embodiment 5.
Figure 17 is the decomposition texture schematic diagram of embodiment 6.
Figure 18 is the structural representation after embodiment 6 hides keycap.
Figure 19 is the decomposition texture schematic diagram of embodiment 7.
Figure 20 is the structural representation after embodiment 7 hides keycap.
Figure 21 is the decomposition texture schematic diagram of embodiment 8.
Figure 22 is the structural representation after embodiment 8 hides keycap.
Figure 23 is the decomposition texture schematic diagram of embodiment 9.
Figure 24 is the structural representation after embodiment 9 hides keycap.
Figure 25 is the decomposition texture schematic diagram of embodiment 10.
Figure 26 is the structural representation after embodiment 10 hides keycap.
Figure 27 is the sectional view of embodiment 10.
Figure 28 is the decomposition texture schematic diagram of embodiment 11.
Figure 29 is the structural representation after embodiment 11 hides keycap.
Figure 30 is the sectional view of embodiment 11.
Figure 31 is the decomposition texture schematic diagram of embodiment 12.
Figure 32 is the structural representation after embodiment 12 hides keycap.
Figure 33 is the sectional view of embodiment 12.
Figure 34 is the decomposition texture schematic diagram of embodiment 13.
Figure 35 is the structural representation after embodiment 13 hides keycap.
Figure 36 is the sectional view of embodiment 13.
Figure 37 is the sectional view of embodiment 14.
Figure 38 is the sectional view of embodiment 15.
Figure 39 is the sectional view of embodiment 16.
Figure 40 is the sectional view of embodiment 17.
Specific embodiment
The invention will be further described with accompanying drawing with the following Examples.
Embodiment 1
As shown in Figures 1 to 4, a kind of ultrathin key switching structure with pressing paragraph sense of the present embodiment, including Keycap 110, base 140 and the circuit board 150 being sequentially connected from top to bottom, are provided between the keycap 110 and the base 140 Two mutually symmetrical with swing components 130, two outer ends of swing component 130 are fixedly connected with the keycap 110 respectively, the base 140 are provided with elastic component 120, and the inner of two swing components 130 is fixedly connected with the elastic component 120 respectively, outside swing component 130 End position is higher than the inner position of swing component 130, and circuit board 150 is provided with infrared transmitting tube 151 and infrared receiver Pipe 152；
When keycap 110 are pressed, keycap 110 drives two outer ends of swing component 130 to lower swing, so that two The inner of individual swing component 130 is swung up, and causes the light transmission state of infrared transmitting tube 151 and infrared receiving tube 152 Change, realize the electric signal transmission of circuit board 150；
When keycap 110 are unclamped, two the inner of swing component 130 return under the screen resilience effect of elastic component 120 It is in situ so that the outer end of two swing components 130 returns to original position, finally cause that keycap 110 returns to original position.
The keycap 110 of the present embodiment includes panel, and the panel bottom is respectively provided on two sides with least two keycap clips 111。
The panel bottom of the present embodiment is respectively provided on two sides with least two keycap grabs 112.
The base 140 of the present embodiment includes base plate, the position point of the upper surface correspondence keycap grab 112 of the base plate Base grab 142 is not provided with, and a base grab 142 and a keycap grab 112 correspond snapping.When keycap 110 is pushed Afterwards during resilience, the keycap grab 112 collides with base grab 142, so as to produce clear and melodious clickly sound.
The centre position of the base plate of the present embodiment is provided with hollow-out parts.
The clinohedral 143 being respectively arranged at two ends with for limiting elastomer of the hollow-out parts of the present embodiment, clinohedral 143 and bottom Plate is integrally formed.
The top of the clinohedral 143 of the present embodiment offers the slit 144 for connecting elastomer.
The swing component 130 of the present embodiment includes inboard Sinks parallel to each other, outer link and mutual with inboard Sinks Two vertical counter-jibs, the inboard Sinks, the outer link and two counter-jibs enclose a square box, homonymy Keycap clip 111 is connected with the outer link of homonymy so that outer link can be driven when pressing keycap 110 to the bottom It is dynamic, so that inboard Sinks are swung up.
The upper surface of the base plate of the present embodiment is respectively provided on two sides with swing component locating part 141, the swing component locating part 141 include mutually perpendicular first riser and the second riser, and the second riser is connected to the middle part of the first riser, first riser Abutted so as to realize to the spacing of swing component 130 with the inner of the counter-jib respectively with second riser.
The inboard Sinks middle part of the present embodiment is provided with connecting rod locating piece 131 towards the side of the outer link.
The elastic component 120 of the present embodiment includes from left to right integrally formed first curved portions, flat part and the second arc Portion, the flat part is affixed with the upper surface of inboard Sinks, and the outer end of first curved portions is inserted in one of clinohedral 143 In the slit 144 on top, the outer end of second curved portions is inserted in the slit 144 on another top of clinohedral 143.
The inner middle part of first curved portions of the present embodiment downwardly turns over to form the first engaging portion 121, second arc The inner middle part in portion downwardly turns over to form the second engaging portion, first engaging portion 121 and a snapping of connecting rod locating piece 131, Second engaging portion and another snapping of connecting rod locating piece 131.
Outer link is pushed down on when keycap 110 is pressed, due to elastic component 120 by two inboard Sinks combinations one Rise, so as to realize two swing components 130 synchronizing moving together, so user be pressed against the diverse location of keycap 110 can be with The synchronizing moving of level is realized, asymmetric inclination or card key will not occur.
Slit 144 of the two ends of elastic component 120 respectively with the top of clinohedral 143 is coupled, and is interference fit, elastic component Because of interference fit, stress makes middle part exert a force downwards at 120 two ends, so as to promote two inboard Sinks to move down, and makes outer Side connecting rod is upturned, and allows keycap 110 to move up the state for recovering static therewith；Keycap 110 is pushed in user and promote Two outer links, the middle part of this inboard Sinks and elastic component 120 is synchronously upturned movement after compression, when mobile position When putting (fulcrum 3) and crossing elastic component 120 and slit 144 and couple the horizontal plane of (fulcrum 2), the active force of elastic component 120 is quickly cut Change and produce a pressing paragraph sense.
Optical prism is fixedly connected with the middle part of the outer link of the present embodiment, one of optical prism is located at infrared hair The surface of pipe 151 is penetrated, another optical prism is located at the surface of infrared receiving tube 152.
The optical prism of the present embodiment is freeform optics prism.
The reflecting surface of the freeform optics prism of the present embodiment be free form surface, the free form surface be quadratic surface or Off axis paraboloid mirror, the free form surface also acts as the effect for assembling light in addition to light is transferred.
The infrared transmitting tube 151 of the present embodiment is upper luminous infrared transmitting tube, and the infrared receiving tube 152 receives red for upper Outer reception pipe.
When keycap 110 is in relaxation state, the light that infrared transmitting tube 151 sends is by being located at infrared transmitting tube 151 The optical prism 132a of top carries out being totally reflected convergence and turnover, 132b in light collimated incident to another optical prism, by this Optical prism 132b carry out again total reflection turnover and assemble after, focus on lower section infrared receiving tube 152 in, infrared receiver Electric current is produced in pipe 152, so that triggers circuit is turned on；When keycap 110 is pushed, two optical prisms are moved down simultaneously, from Optical prism 132a collimated rays out positioned at the top of infrared transmitting tube 151 can not be incided positioned at infrared receiving tube 152 In the optical prism 132b of top, infrared receiving tube 152 does not receive light, it is impossible to produce electric current, so as to cause circuit to disconnect.
Embodiment 2
As shown in Figures 5 to 7, a kind of ultrathin key switching structure with pressing paragraph sense of the present embodiment, including Keycap 210, base 240 and the circuit board 250 being sequentially connected from top to bottom, are provided between the keycap 210 and the base 240 Two mutually symmetrical with swing components 230, two outer ends of swing component 230 are fixedly connected with the keycap 210 respectively, the base 240 are provided with elastic component 220, and the inner of two swing components 230 is fixedly connected with the elastic component 220 respectively, outside swing component 230 End position is higher than the inner position of swing component 230, and circuit board 250 is provided with infrared transmitting tube 251 and infrared receiver Pipe 252；
When keycap 210 are pressed, keycap 210 drives two outer ends of swing component 230 to lower swing, so that two The inner of individual swing component 230 is swung up, and causes the light transmission state of infrared transmitting tube 251 and infrared receiving tube 252 Change, realize the electric signal transmission of circuit board 250；
When keycap 210 are unclamped, two the inner of swing component 230 return under the screen resilience effect of elastic component 220 It is in situ so that the outer end of two swing components 230 returns to original position, finally cause that keycap 210 returns to original position.
The keycap 210 of the present embodiment includes panel, and the panel bottom is respectively provided on two sides with least two keycap clips 211。
The panel bottom of the present embodiment is respectively provided on two sides with least two keycap grabs 212.
The base 240 of the present embodiment includes base plate, the position point of the upper surface correspondence keycap grab 212 of the base plate Base grab 242 is not provided with, and a base grab 242 and a keycap grab 212 correspond snapping.When keycap 210 is pushed Afterwards during resilience, the keycap grab 212 collides with base grab 242, so as to produce clear and melodious clickly sound.
The centre position of the base plate of the present embodiment is provided with hollow-out parts.
The clinohedral 243 being respectively arranged at two ends with for limiting elastomer of the hollow-out parts of the present embodiment, clinohedral 243 and bottom Plate is integrally formed.
The top of the clinohedral 243 of the present embodiment offers the slit 244 for connecting elastomer.
The swing component 230 of the present embodiment includes inboard Sinks parallel to each other, outer link and mutual with inboard Sinks Two vertical counter-jibs, the inboard Sinks, the outer link and two counter-jibs enclose a square box, homonymy Keycap clip 211 is connected with the outer link of homonymy so that outer link can be driven when pressing keycap 210 to the bottom It is dynamic, so that inboard Sinks are swung up.
The upper surface of the base plate of the present embodiment is respectively provided on two sides with swing component locating part 241, the swing component locating part 241 include mutually perpendicular first riser and the second riser, and the second riser is connected to the middle part of the first riser, first riser Abutted so as to realize to the spacing of swing component 230 with the inner of the counter-jib respectively with second riser.
The inboard Sinks middle part of the present embodiment is provided with connecting rod locating piece 231 towards the side of the outer link.
The elastic component 220 of the present embodiment includes from left to right integrally formed first elastic force adjustment portion 223, the first curved portions 222nd, the second curved portions 221, flat part 220, the 3rd curved portions, the 4th curved portions and the second elastic force adjustment portion, the flat part 220 are affixed with the lower surface of inboard Sinks, and the first elastic force adjustment portion 223 is inserted in one of the narrow of the top of clinohedral 243 In seam 244, the second elastic force adjustment portion is inserted in the slit 244 on another top of clinohedral 243.First elastic force adjustment portion 223 and second elastic force adjustment portion be used for adjust reset (allowing key switching structure to return to original state) dynamics, be also used for adjust The dynamics of section outer link pressing.
The first engaging portion 224 is provided with the middle part of the inner of second curved portions 221 of the present embodiment, the 3rd curved portions are inner Middle part be provided with the second engaging portion, first engaging portion 224 and a snapping of connecting rod locating piece 231, second engaging portion With another snapping of connecting rod locating piece 231.
Outer link is pushed down on when keycap 210 is pressed, due to elastic component 220 by two inboard Sinks combinations one Rise, so as to realize two swing components 230 synchronizing moving together, so user be pressed against the diverse location of keycap 210 can be with The synchronizing moving of level is realized, asymmetric inclination or card key will not occur.
Slit 244 of the two ends of elastic component 220 respectively with the top of clinohedral 243 is coupled, and is interference fit, elastic component Because of interference fit, stress makes middle part exert a force downwards at 220 two ends, so as to promote two inboard Sinks to move down, and makes outer Side connecting rod is upturned, and allows keycap 210 to move up the state for recovering static therewith；Keycap 210 is pushed in user and promote Two outer links, the middle part of this inboard Sinks and elastic component 220 is synchronously upturned movement after compression, when mobile position When putting the horizontal plane for crossing the coupling of elastic component 220 and slit 244, the active force of elastic component 220 be switched fast and produce one by Pressure paragraph sense.
The infrared transmitting tube 251 of the present embodiment is the luminous infrared transmitting tube in side, and the infrared receiving tube 252 is that side joint receipts are red Outer reception pipe, the infrared transmitting tube 251 is oppositely arranged with the infrared receiving tube 252.
The structure realizes the disconnection and conducting of infrared transmitting tube 251 and the light path of infrared receiving tube 252 by lever action, when When keycap 210 is in relaxation state, outer link is above, and inboard Sinks are then below, and is arranged on inboard Sinks Connecting rod locating piece 231, the light that infrared transmitting tube 251 sends is blocked, can not be produced in the infrared receiving tube 252 of opposite side Trigger current, button is in the state for disconnecting；When keycap 210 is pushed, outer link stress is pushed, under leverage, band Dynamic inboard Sinks are moved upwards, the also motion upwards of inboard Sinks drivening rod locating piece 231, are at this moment penetrated from infrared transmitting tube 251 The light for going out is incided in infrared receiving tube 252, produces trigger current, keycap 210 to be on shape in infrared receiving tube 252 State.Infrared transmitting tube 251 and infrared receiving tube 252 are arranged on into elastic component can avoid for 220 times the light on periphery from disturbing it, make The function of product is more stable.
Keycap character illumination LED 253 and 254 is additionally provided with the circuit board 250 of the present embodiment, keycap character illumination LED253 and 254 is monochromatic LED, dual-colored LED or three-color LED.
Embodiment 3
As shown in Fig. 8 to Figure 10, a kind of ultrathin key switching structure with pressing paragraph sense of the present embodiment, including Keycap 310, base 340 and the circuit board 350 being sequentially connected from top to bottom, are provided with mutually relative between the keycap and the base Two swing components 330 for claiming, two outer ends of swing component are fixedly connected with the keycap respectively, and the base is provided with elastic component 320, the inner of two swing components is fixedly connected with the elastic component respectively, and the outer end position of swing component is than in swing component End position is high, and circuit board is provided with infrared transmitting tube 351 and infrared receiving tube 352；
When keycap is pressed, keycap drives two outer ends of swing component to lower swing, so that two swing components The inner be swung up, and cause infrared transmitting tube changed with the light transmission state of infrared receiving tube, realize circuit The electric signal transmission of plate；
When keycap is unclamped, two the inner of swing component return to original position under the screen resilience effect of elastic component so that The outer end of two swing components returns to original position, finally causes that keycap returns to original position.
The keycap of the present embodiment includes panel, and the panel bottom is respectively provided on two sides with least two keycap clips 311.
The panel bottom of the present embodiment is respectively provided on two sides with least two keycap grabs 312.
The base of the present embodiment includes base plate, and the position of the upper surface correspondence keycap grab of the base plate is respectively equipped with Base grab 342, a base grab and a keycap grab correspond snapping.When resilience after keycap is pushed, the key Cap grab collides with base grab, so as to produce clear and melodious clickly sound.
The centre position of the base plate of the present embodiment is provided with hollow-out parts.
The clinohedral 343 being respectively arranged at two ends with for limiting elastomer of the hollow-out parts of the present embodiment, clinohedral and base plate It is integrally formed.
The top of the clinohedral of the present embodiment offers the slit 344 for connecting elastomer.
The swing component of the present embodiment includes inboard Sinks parallel to each other, outer link and orthogonal with inboard Sinks Two counter-jibs, the inboard Sinks, the outer link and two counter-jibs enclose a square box, the keycap of homonymy Clip is connected with the outer link of homonymy so that outer link can be driven when pressing keycap to lower swing, so that Inboard Sinks are swung up.
The upper surface of the base plate of the present embodiment is respectively provided on two sides with swing component locating part 341, the swing component locating part Including mutually perpendicular first riser and the second riser, the second riser is connected to the middle part of the first riser, first riser and Second riser is abutted so as to realize to the spacing of swing component with the inner of the counter-jib respectively.
The inboard Sinks middle part of the present embodiment is provided with two pin locating pieces 331 back to the side of the outer link.
The elastic component of the present embodiment includes from left to right integrally formed first curved portions, flat part and the second curved portions, The flat part is affixed with the upper surface of inboard Sinks, and the outer end of first curved portions is inserted in one of clinohedral top In slit, the outer end of second curved portions is inserted in the slit on another clinohedral top.
The flat part of the present embodiment offers through hole 321, and the through hole is provided with pin 360, and two inboard Sinks pass through pin Nail is fixedly connected with the flat part.
Wherein, four medial surfaces of pin locating piece are abutted with the pin respectively.
Outer link is pushed down on when keycap is pressed, because elastic component combines two inboard Sinks, from And two swing components synchronizing moving together is realized, so the diverse location that user is pressed against keycap can realize the same of level Moved further, will not occur asymmetric inclination or card key.
Elastic component two ends couple with the slit on clinohedral top respectively, and are interference fit, and elastic component two ends are because of interference Coordinate and stress makes middle part exert a force downwards, so as to promote two inboard Sinks to move down, and outer link is tilted upward Rise, allow keycap to move up the state for recovering static therewith；Keycap is pushed in user and promote two outer links, after compression The middle part of this inboard Sinks and elastic component is synchronously upturned movement, and cross elastic component when mobile position couples with slit Horizontal plane when, the active force of elastic component be switched fast and produce one pressing paragraph sense.
Optical prism is fixedly connected with the middle part of the outer link of the present embodiment, one of optical prism is located at infrared hair The surface of pipe is penetrated, another optical prism is located at the surface of infrared receiving tube.
The optical prism of the present embodiment is freeform optics prism.
The reflecting surface of the freeform optics prism of the present embodiment be free form surface, the free form surface be quadratic surface or Off axis paraboloid mirror, the free form surface also acts as the effect for assembling light in addition to light is transferred.
The infrared transmitting tube of the present embodiment is upper luminous infrared transmitting tube, and the infrared receiving tube is upper reception infrared receiver Pipe.
When keycap is in relaxation state, the light that infrared transmitting tube sends is by the optics above infrared transmitting tube Prism 332a carries out being totally reflected convergence and turnover, in light collimated incident to another optical prism 332b, by the optical prism again It is secondary be totally reflected after turnover and convergence, focus in the infrared receiving tube of lower section, electric current is produced in infrared receiving tube, so that Triggers circuit is turned on；When keycap is pushed, two optical prisms are moved down simultaneously, from the optics above infrared transmitting tube Prism collimated ray out can not be incided in the optical prism above infrared receiving tube, and infrared receiving tube is not received Light, it is impossible to produce electric current, so as to cause circuit to disconnect.
Keycap character illumination LED is additionally provided with the circuit board of the present embodiment, the keycap character illumination LED is monochromatic LED, double Color LED or three-color LED.
Embodiment 4
As shown in Figure 11 to 14, a kind of ultrathin key switching structure with pressing paragraph sense of the present embodiment, bag Keycap 410, base 440 and the circuit board 450 being sequentially connected from top to bottom are included, is provided between the keycap and the base mutually Two symmetrical swing components 430, two outer ends of swing component are fixedly connected with the keycap respectively, and the base is provided with elastic component 420, the inner of two swing components is fixedly connected with the elastic component respectively, and the outer end position of swing component is than in swing component End position is high, and circuit board is provided with infrared transmitting tube 451 and infrared receiving tube 452；
When keycap is pressed, keycap drives two outer ends of swing component to lower swing, so that two swing components The inner be swung up, and cause infrared transmitting tube changed with the light transmission state of infrared receiving tube, realize circuit The electric signal transmission of plate；
When keycap is unclamped, two the inner of swing component return to original position under the screen resilience effect of elastic component so that The outer end of two swing components returns to original position, finally causes that keycap returns to original position.
The keycap of the present embodiment includes panel, and the panel bottom is respectively provided on two sides with least two keycap clips 411.
The panel bottom of the present embodiment is respectively provided on two sides with least two keycap grabs 412.
The base of the present embodiment includes base plate, and the position of the upper surface correspondence keycap grab of the base plate is respectively equipped with Base grab 442, a base grab and a keycap grab correspond snapping.When resilience after keycap is pushed, the key Cap grab collides with base grab, so as to produce clear and melodious clickly sound.
The centre position of the base plate of the present embodiment is provided with hollow-out parts.
The clinohedral 443 being respectively arranged at two ends with for limiting elastomer of the hollow-out parts of the present embodiment, clinohedral and base plate It is integrally formed.
The top of the clinohedral of the present embodiment offers the slit 444 for connecting elastomer.
The swing component of the present embodiment includes inboard Sinks parallel to each other, outer link and orthogonal with inboard Sinks Two counter-jibs, the inboard Sinks, the outer link and two counter-jibs enclose a square box, the keycap of homonymy Clip is connected with the outer link of homonymy so that outer link can be driven when pressing keycap to lower swing, so that Inboard Sinks are swung up.
The plate upper surface of the present embodiment is respectively provided on two sides with two base plate fulcrums 441.
Wherein, the bottom surface of each counter-jib is respectively equipped with counter-jib groove, and a base plate fulcrum correspondence is absorbed in a balance In arm groove.Base plate fulcrum and counter-jib groove, it plays a part of balance pivot so that swing component can be around base plate fulcrum Swing, when keycap is pushed and is risen, swing component will not all around stagger.
Bottom surface in the middle part of the inboard Sinks of the present embodiment is provided with two limited blocks 431, one of limited block and hollow-out parts Side wall abut, another limited block is abutted with the opposite side wall of hollow-out parts.
The elastic component of the present embodiment includes from left to right integrally formed first curved portions, the second curved portions, flat part 421st, the 3rd curved portions and the 4th curved portions, the outer end of first curved portions are inserted in one of the slit on clinohedral top In, the outer end of the 4th curved portions is inserted in the slit on another clinohedral top, and one of inboard Sinks are located in institute State between the second curved portions and the flat part, another inboard Sinks be located in the 3rd curved portions and the flat part it Between.
The longitudinal section of the assembly of second curved portions, the flat part and the 3rd curved portions of the present embodiment is in " work " Font.
Outer link is pushed down on when keycap is pressed, because elastic component combines two inboard Sinks, from And two swing components synchronizing moving together is realized, so the diverse location that user is pressed against keycap can realize the same of level Moved further, will not occur asymmetric inclination or card key.
Elastic component two ends couple with the slit on clinohedral top respectively, and are interference fit, and elastic component two ends are because of interference Coordinate and stress makes middle part exert a force downwards, so as to promote two inboard Sinks to move down, and outer link is tilted upward Rise, allow keycap to move up the state for recovering static therewith；Keycap is pushed in user and promote two outer links, after compression The middle part of this inboard Sinks and elastic component is synchronously upturned movement, and cross elastic component when mobile position couples with slit Horizontal plane when, the active force of elastic component be switched fast and produce one pressing paragraph sense.
Optical prism is fixedly connected with the middle part of the outer link of the present embodiment, one of optical prism is located at infrared hair The surface of pipe is penetrated, another optical prism is located at the surface of infrared receiving tube.
The optical prism of the present embodiment is freeform optics prism.
The reflecting surface of the freeform optics prism of the present embodiment be free form surface, the free form surface be quadratic surface or Off axis paraboloid mirror, the free form surface also acts as the effect for assembling light in addition to light is transferred.
The infrared transmitting tube of the present embodiment is upper luminous infrared transmitting tube, and the infrared receiving tube is upper reception infrared receiver Pipe.
When keycap is in relaxation state, the light that infrared transmitting tube sends is by the optics above infrared transmitting tube Prism 432a carry out be totally reflected convergence and turnover, 432b in light collimated incident to another optical prism, by the optical prism again It is secondary be totally reflected after turnover and convergence, focus in the infrared receiving tube of lower section, electric current is produced in infrared receiving tube, so that Triggers circuit is turned on；When keycap is pushed, two optical prisms are moved down simultaneously, from the optics above infrared transmitting tube Prism collimated ray out can not be incided in the optical prism above infrared receiving tube, and infrared receiving tube is not received Light, it is impossible to produce electric current, so as to cause circuit to disconnect.
Keycap character illumination LED is additionally provided with the circuit board of the present embodiment, the keycap character illumination LED is monochromatic LED, double Color LED or three-color LED.
Embodiment 5
As shown in Figure 15 and Figure 16, a kind of ultrathin key switching structure with pressing paragraph sense of the present embodiment, bag Keycap 510, base 540 and the circuit board 550 being sequentially connected from top to bottom are included, is provided between the keycap and the base mutually Two symmetrical swing components 530, two outer ends of swing component are fixedly connected with the keycap respectively, and the base is provided with elastic component 520, the inner of two swing components is fixedly connected with the elastic component respectively, and the outer end position of swing component is than in swing component End position is high, and circuit board is provided with infrared transmitting tube and infrared receiving tube；
When keycap is pressed, keycap drives two outer ends of swing component to lower swing, so that two swing components The inner be swung up, and cause infrared transmitting tube changed with the light transmission state of infrared receiving tube, realize circuit The electric signal transmission of plate；
When keycap is unclamped, two the inner of swing component return to original position under the screen resilience effect of elastic component so that The outer end of two swing components returns to original position, finally causes that keycap returns to original position.
The keycap of the present embodiment includes panel, and the panel bottom is respectively provided on two sides with least two keycap clips.
The panel bottom of the present embodiment is respectively provided on two sides with least two keycap grabs.
The base of the present embodiment includes base plate, and the position of the upper surface correspondence keycap grab of the base plate is respectively equipped with Base grab, a base grab and a keycap grab correspond snapping.When resilience after keycap is pushed, the keycap card Hook collides with base grab, so as to produce clear and melodious clickly sound.
The centre position of the base plate of the present embodiment is provided with hollow-out parts.
The clinohedral being respectively arranged at two ends with for limiting elastomer of the hollow-out parts of the present embodiment, clinohedral is with base plate integrally Shaping.
The top of the clinohedral of the present embodiment offers the slit for connecting elastomer.
The swing component of the present embodiment includes inboard Sinks parallel to each other, outer link and orthogonal with inboard Sinks Two counter-jibs, the inboard Sinks, the outer link and two counter-jibs enclose a square box, the keycap of homonymy Clip is connected with the outer link of homonymy so that outer link can be driven when pressing keycap to lower swing, so that Inboard Sinks are swung up.
The both sides of the plate upper surface of the present embodiment offer two bottom plate grooves 541 respectively.
Wherein, the bottom surface of each counter-jib is respectively equipped with counter-jib fulcrum, and a counter-jib fulcrum correspondence is absorbed in a bottom In plate groove.Bottom plate groove and counter-jib fulcrum, it plays a part of balance pivot so that swing component can be around counter-jib branch Spot wobble, when keycap is pushed and is risen, swing component will not all around stagger.
Bottom surface in the middle part of the inboard Sinks of the present embodiment is provided with two limited blocks, one of limited block and the one of hollow-out parts Side wall is abutted, and another limited block is abutted with the opposite side wall of hollow-out parts.
The elastic component of the present embodiment includes from left to right integrally formed first curved portions, the second curved portions, flat part, the Three curved portions and the 4th curved portions, the outer end of first curved portions are inserted in one of in the slit on clinohedral top, described The outer end of the 4th curved portions is inserted in the slit on another clinohedral top, and one of inboard Sinks are located in second arc Between shape portion and the flat part, another inboard Sinks is located between the 3rd curved portions and the flat part.
The longitudinal section of the assembly of second curved portions, the flat part and the 3rd curved portions of the present embodiment is in " work " Font.
Outer link is pushed down on when keycap is pressed, because elastic component combines two inboard Sinks, from And two swing components synchronizing moving together is realized, so the diverse location that user is pressed against keycap can realize the same of level Moved further, will not occur asymmetric inclination or card key.
Elastic component two ends couple with the slit on clinohedral top respectively, and are interference fit, and elastic component two ends are because of interference Coordinate and stress makes middle part exert a force downwards, so as to promote two inboard Sinks to move down, and outer link is tilted upward Rise, allow keycap to move up the state for recovering static therewith；Keycap is pushed in user and promote two outer links, after compression The middle part of this inboard Sinks and elastic component is synchronously upturned movement, and cross elastic component when mobile position couples with slit Horizontal plane when, the active force of elastic component be switched fast and produce one pressing paragraph sense.
Optical prism is fixedly connected with the middle part of the outer link of the present embodiment, one of optical prism is located at infrared hair The surface of pipe is penetrated, another optical prism is located at the surface of infrared receiving tube.
The optical prism of the present embodiment is freeform optics prism.
The reflecting surface of the freeform optics prism of the present embodiment be free form surface, the free form surface be quadratic surface or Off axis paraboloid mirror, the free form surface also acts as the effect for assembling light in addition to light is transferred.
The infrared transmitting tube of the present embodiment is upper luminous infrared transmitting tube, and the infrared receiving tube is upper reception infrared receiver Pipe.
When keycap is in relaxation state, the light that infrared transmitting tube sends is by the optics above infrared transmitting tube Prism carries out being totally reflected convergence and turnover, in light collimated incident to another optical prism, is carried out again by the optical prism complete After reflection turnover and convergence, focus in the infrared receiving tube of lower section, electric current is produced in infrared receiving tube, so that triggers circuit Conducting；When keycap is pushed, two optical prisms are moved down simultaneously, from the optical prism above infrared transmitting tube out Collimated ray can not incide the optical prism above infrared receiving tube, infrared receiving tube does not receive light, no Electric current can be produced, so as to cause circuit to disconnect.
Embodiment 6
As shown in Figure 17 and Figure 18, a kind of ultrathin key switching structure with pressing paragraph sense of the present embodiment, bag Keycap 610, base 640 and the circuit board 650 being sequentially connected from top to bottom are included, is provided between the keycap and the base mutually Two symmetrical swing components 630, two outer ends of swing component are fixedly connected with the keycap respectively, and the base is provided with elastic component 620, the inner of two swing components is fixedly connected with the elastic component respectively, and the outer end position of swing component is than in swing component End position is high, and circuit board is provided with infrared transmitting tube 651 and infrared receiving tube 652；
When keycap is pressed, keycap drives two outer ends of swing component to lower swing, so that two swing components The inner be swung up, and cause infrared transmitting tube changed with the light transmission state of infrared receiving tube, realize circuit The electric signal transmission of plate；
When keycap is unclamped, two the inner of swing component return to original position under the screen resilience effect of elastic component so that The outer end of two swing components returns to original position, finally causes that keycap returns to original position.
The keycap of the present embodiment includes panel, and the panel bottom is respectively provided on two sides with least two keycap clips.
The panel bottom of the present embodiment is respectively provided on two sides with least two keycap grabs.
The base of the present embodiment includes base plate, and the position of the upper surface correspondence keycap grab of the base plate is respectively equipped with Base grab, a base grab and a keycap grab correspond snapping.When resilience after keycap is pushed, the keycap card Hook collides with base grab, so as to produce clear and melodious clickly sound.
The centre position of the base plate of the present embodiment is provided with hollow-out parts.
The clinohedral being respectively arranged at two ends with for limiting elastomer of the hollow-out parts of the present embodiment, clinohedral is with base plate integrally Shaping.
The top of the clinohedral of the present embodiment offers the slit for connecting elastomer.
The swing component of the present embodiment includes inboard Sinks parallel to each other, outer link and orthogonal with inboard Sinks Two counter-jibs, the inboard Sinks, the outer link and two counter-jibs enclose a square box, the keycap of homonymy Clip is connected with the outer link of homonymy so that outer link can be driven when pressing keycap to lower swing, so that Inboard Sinks are swung up.
The plate upper surface of the present embodiment is respectively provided on two sides with two axle sleeves 641.
The inboard Sinks middle part of the present embodiment is provided with connecting rod locating piece 631 towards the side of the outer link.
The medial surface of the counter-jib of the present embodiment is provided with short axle 635, and a short axle connects one to one with an axle sleeve.It is short Axle and axle sleeve, it plays a part of balance pivot so that swing component can swing around short axle, when keycap is pushed and is risen, Swing component will not all around stagger.
The elastic component of the present embodiment includes from left to right integrally formed first curved portions, flat part and the second curved portions, The flat part is affixed with the upper surface of inboard Sinks, and the outer end of first curved portions is inserted in one of clinohedral top In slit, the outer end of second curved portions is inserted in the slit on another clinohedral top.
The inner middle part of first curved portions of the present embodiment downwardly turns over to form the first engaging portion 621, second arc The inner middle part in portion downwardly turns over to form the second engaging portion, first engaging portion and a connecting rod locating piece snapping, and described the Two engaging portion and another connecting rod locating piece snapping.
Outer link is pushed down on when keycap is pressed, because elastic component combines two inboard Sinks, from And two swing components synchronizing moving together is realized, so the diverse location that user is pressed against keycap can realize the same of level Moved further, will not occur asymmetric inclination or card key.
Elastic component two ends couple with the slit on clinohedral top respectively, and are interference fit, and elastic component two ends are because of interference Coordinate and stress makes middle part exert a force downwards, so as to promote two inboard Sinks to move down, and outer link is tilted upward Rise, allow keycap to move up the state for recovering static therewith；Keycap is pushed in user and promote two outer links, after compression The middle part of this inboard Sinks and elastic component is synchronously upturned movement, and cross elastic component when mobile position couples with slit Horizontal plane when, the active force of elastic component be switched fast and produce one pressing paragraph sense.
Optical prism is fixedly connected with the middle part of the outer link of the present embodiment, one of optical prism is located at infrared hair The surface of pipe is penetrated, another optical prism is located at the surface of infrared receiving tube.
The optical prism of the present embodiment is freeform optics prism.
The reflecting surface of the freeform optics prism of the present embodiment be free form surface, the free form surface be quadratic surface or Off axis paraboloid mirror, the free form surface also acts as the effect for assembling light in addition to light is transferred.
The infrared transmitting tube of the present embodiment is upper luminous infrared transmitting tube, and the infrared receiving tube is upper reception infrared receiver Pipe.
When keycap is in relaxation state, the light that infrared transmitting tube sends is by the optics above infrared transmitting tube Prism carries out being totally reflected convergence and turnover, in light collimated incident to another optical prism, is carried out again by the optical prism complete After reflection turnover and convergence, focus in the infrared receiving tube of lower section, electric current is produced in infrared receiving tube, so that triggers circuit Conducting；When keycap is pushed, two optical prisms are moved down simultaneously, from the optical prism above infrared transmitting tube out Collimated ray can not incide the optical prism above infrared receiving tube, infrared receiving tube does not receive light, no Electric current can be produced, so as to cause circuit to disconnect.
Keycap character illumination LED 653 is additionally provided with the circuit board of the present embodiment, the keycap character illumination LED is monochrome LED, dual-colored LED or three-color LED.
Embodiment 7
As illustrated in figures 19 and 20, a kind of ultrathin key switching structure with pressing paragraph sense of the present embodiment, bag Keycap 710, base 740 and the circuit board 750 being sequentially connected from top to bottom are included, is provided between the keycap and the base mutually Two symmetrical swing components 730, two outer ends of swing component are fixedly connected with the keycap respectively, and the base is provided with elastic component 720, the inner of two swing components is fixedly connected with the elastic component respectively, and the outer end position of swing component is than in swing component End position is high, and circuit board is provided with infrared transmitting tube 751 and infrared receiving tube 752；
When keycap is pressed, keycap drives two outer ends of swing component to lower swing, so that two swing components The inner be swung up, and cause infrared transmitting tube changed with the light transmission state of infrared receiving tube, realize circuit The electric signal transmission of plate；
When keycap is unclamped, two the inner of swing component return to original position under the screen resilience effect of elastic component so that The outer end of two swing components returns to original position, finally causes that keycap returns to original position.
The keycap of the present embodiment includes panel, and the panel bottom is respectively provided on two sides with least two keycap clips.
The panel bottom of the present embodiment is respectively provided on two sides with least two keycap grabs.
The base of the present embodiment includes base plate, and the position of the upper surface correspondence keycap grab of the base plate is respectively equipped with Base grab, a base grab and a keycap grab correspond snapping.When resilience after keycap is pushed, the keycap card Hook collides with base grab, so as to produce clear and melodious clickly sound.
The centre position of the base plate of the present embodiment is provided with hollow-out parts.
The clinohedral being respectively arranged at two ends with for limiting elastomer of the hollow-out parts of the present embodiment, clinohedral is with base plate integrally Shaping.
The top of the clinohedral of the present embodiment offers the slit for connecting elastomer.
The swing component of the present embodiment includes inboard Sinks parallel to each other, outer link and orthogonal with inboard Sinks Two counter-jibs, the inboard Sinks, the outer link and two counter-jibs enclose a square box, the keycap of homonymy Clip is connected with the outer link of homonymy so that outer link can be driven when pressing keycap to lower swing, so that Inboard Sinks are swung up.
The plate upper surface of the present embodiment is respectively provided on two sides with two axle sleeves 741.
The inboard Sinks middle part of the present embodiment is provided with two pin locating pieces 731 back to the side of the outer link.
The medial surface of the counter-jib of the present embodiment is provided with short axle 735, and a short axle connects one to one with an axle sleeve.It is short Axle and axle sleeve, it plays a part of balance pivot so that swing component can swing around short axle, when keycap is pushed and is risen, Swing component will not all around stagger.
The elastic component of the present embodiment includes from left to right integrally formed first curved portions, flat part and the second curved portions, The flat part is affixed with the upper surface of inboard Sinks, and the outer end of first curved portions is inserted in one of clinohedral top In slit, the outer end of second curved portions is inserted in the slit on another clinohedral top.
The flat part of the present embodiment offers through hole 721, and the through hole is provided with pin 760, and two inboard Sinks pass through pin Nail is fixedly connected with the flat part.
Wherein, four medial surfaces of pin locating piece are abutted with the pin respectively.
Outer link is pushed down on when keycap is pressed, because elastic component combines two inboard Sinks, from And two swing components synchronizing moving together is realized, so the diverse location that user is pressed against keycap can realize the same of level Moved further, will not occur asymmetric inclination or card key.
Elastic component two ends couple with the slit on clinohedral top respectively, and are interference fit, and elastic component two ends are because of interference Coordinate and stress makes middle part exert a force downwards, so as to promote two inboard Sinks to move down, and outer link is tilted upward Rise, allow keycap to move up the state for recovering static therewith；Keycap is pushed in user and promote two outer links, after compression The middle part of this inboard Sinks and elastic component is synchronously upturned movement, and cross elastic component when mobile position couples with slit Horizontal plane when, the active force of elastic component be switched fast and produce one pressing paragraph sense.
Optical prism is fixedly connected with the middle part of the outer link of the present embodiment, one of optical prism is located at infrared hair The surface of pipe is penetrated, another optical prism is located at the surface of infrared receiving tube.
The optical prism of the present embodiment is freeform optics prism.
The reflecting surface of the freeform optics prism of the present embodiment be free form surface, the free form surface be quadratic surface or Off axis paraboloid mirror, the free form surface also acts as the effect for assembling light in addition to light is transferred.
The infrared transmitting tube of the present embodiment is upper luminous infrared transmitting tube, and the infrared receiving tube is upper reception infrared receiver Pipe.
When keycap is in relaxation state, the light that infrared transmitting tube sends is by the optics above infrared transmitting tube Prism carries out being totally reflected convergence and turnover, in light collimated incident to another optical prism, is carried out again by the optical prism complete After reflection turnover and convergence, focus in the infrared receiving tube of lower section, electric current is produced in infrared receiving tube, so that triggers circuit Conducting；When keycap is pushed, two optical prisms are moved down simultaneously, from the optical prism above infrared transmitting tube out Collimated ray can not incide the optical prism above infrared receiving tube, infrared receiving tube does not receive light, no Electric current can be produced, so as to cause circuit to disconnect.
Keycap character illumination LED 753 is additionally provided with the circuit board of the present embodiment, the keycap character illumination LED is monochrome LED, dual-colored LED or three-color LED.
Embodiment 8
As shown in figure 21 and figure, a kind of ultrathin key switching structure with pressing paragraph sense of the present embodiment, bag Keycap 810, base 840 and the circuit board 850 being sequentially connected from top to bottom are included, is provided between the keycap and the base mutually Two symmetrical swing components 830, two outer ends of swing component are fixedly connected with the keycap respectively, and the base is provided with elastic component 820, the inner of two swing components is fixedly connected with the elastic component respectively, and the outer end position of swing component is than in swing component End position is high, and circuit board is provided with infrared transmitting tube 851 and infrared receiving tube 852；
When keycap is pressed, keycap drives two outer ends of swing component to lower swing, so that two swing components The inner be swung up, and cause infrared transmitting tube changed with the light transmission state of infrared receiving tube, realize circuit The electric signal transmission of plate；
When keycap is unclamped, two the inner of swing component return to original position under the screen resilience effect of elastic component so that The outer end of two swing components returns to original position, finally causes that keycap returns to original position.
The keycap of the present embodiment includes panel, and the panel bottom is respectively provided on two sides with least two keycap clips.
The panel bottom of the present embodiment is respectively provided on two sides with least two keycap grabs.
The base of the present embodiment includes base plate, and the position of the upper surface correspondence keycap grab of the base plate is respectively equipped with Base grab, a base grab and a keycap grab correspond snapping.When resilience after keycap is pushed, the keycap card Hook collides with base grab, so as to produce clear and melodious clickly sound.
The centre position of the base plate of the present embodiment is provided with hollow-out parts.
The clinohedral being respectively arranged at two ends with for limiting elastomer of the hollow-out parts of the present embodiment, clinohedral is with base plate integrally Shaping.
The top of the clinohedral of the present embodiment offers the slit for connecting elastomer.
The swing component of the present embodiment includes inboard Sinks parallel to each other, outer link and orthogonal with inboard Sinks Two counter-jibs, the inboard Sinks, the outer link and two counter-jibs enclose a square box, the keycap of homonymy Clip is connected with the outer link of homonymy so that outer link can be driven when pressing keycap to lower swing, so that Inboard Sinks are swung up.
The plate upper surface of the present embodiment is respectively provided on two sides with two axle sleeves 841.
Bottom surface in the middle part of the inboard Sinks of the present embodiment is provided with two limited blocks 831, one of limited block and hollow-out parts Side wall abut, another limited block is abutted with the opposite side wall of hollow-out parts.
The medial surface of the counter-jib of the present embodiment is provided with short axle 835, and a short axle connects one to one with an axle sleeve.It is short Axle and axle sleeve, it plays a part of balance pivot so that swing component can swing around short axle, when keycap is pushed and is risen, Swing component will not all around stagger.
The elastic component of the present embodiment includes from left to right integrally formed first curved portions, the second curved portions, flat part 821st, the 3rd curved portions and the 4th curved portions, the outer end of first curved portions are inserted in one of the slit on clinohedral top In, the outer end of the 4th curved portions is inserted in the slit on another clinohedral top, and one of inboard Sinks are located in institute State between the second curved portions and the flat part, another inboard Sinks be located in the 3rd curved portions and the flat part it Between.
The longitudinal section of the assembly of second curved portions, the flat part and the 3rd curved portions of the present embodiment is in " work " Font.
Outer link is pushed down on when keycap is pressed, because elastic component combines two inboard Sinks, from And two swing components synchronizing moving together is realized, so the diverse location that user is pressed against keycap can realize the same of level Moved further, will not occur asymmetric inclination or card key.
Elastic component two ends couple with the slit on clinohedral top respectively, and are interference fit, and elastic component two ends are because of interference Coordinate and stress makes middle part exert a force downwards, so as to promote two inboard Sinks to move down, and outer link is tilted upward Rise, allow keycap to move up the state for recovering static therewith；Keycap is pushed in user and promote two outer links, after compression The middle part of this inboard Sinks and elastic component is synchronously upturned movement, and cross elastic component when mobile position couples with slit Horizontal plane when, the active force of elastic component be switched fast and produce one pressing paragraph sense.
Optical prism is fixedly connected with the middle part of the outer link of the present embodiment, one of optical prism is located at infrared hair The surface of pipe is penetrated, another optical prism is located at the surface of infrared receiving tube.
The optical prism of the present embodiment is freeform optics prism.
The reflecting surface of the freeform optics prism of the present embodiment be free form surface, the free form surface be quadratic surface or Off axis paraboloid mirror, the free form surface also acts as the effect for assembling light in addition to light is transferred.
The infrared transmitting tube of the present embodiment is upper luminous infrared transmitting tube, and the infrared receiving tube is upper reception infrared receiver Pipe.
When keycap is in relaxation state, the light that infrared transmitting tube sends is by the optics above infrared transmitting tube Prism carries out being totally reflected convergence and turnover, in light collimated incident to another optical prism, is carried out again by the optical prism complete After reflection turnover and convergence, focus in the infrared receiving tube of lower section, electric current is produced in infrared receiving tube, so that triggers circuit Conducting；When keycap is pushed, two optical prisms are moved down simultaneously, from the optical prism above infrared transmitting tube out Collimated ray can not incide the optical prism above infrared receiving tube, infrared receiving tube does not receive light, no Electric current can be produced, so as to cause circuit to disconnect.
Keycap character illumination LED 853 is additionally provided with the circuit board of the present embodiment, the keycap character illumination LED is monochrome LED, dual-colored LED or three-color LED.
Embodiment 9
As shown in figure 23 and figure 24, a kind of ultrathin key switching structure with pressing paragraph sense of the present embodiment, bag Keycap 910, base 940 and the circuit board 950 being sequentially connected from top to bottom are included, is provided between the keycap and the base mutually Two symmetrical swing components 930, two outer ends of swing component are fixedly connected with the keycap respectively, and the base is provided with elastic component 920, the inner of two swing components is fixedly connected with the elastic component respectively, and the outer end position of swing component is than in swing component End position is high, and circuit board is provided with infrared transmitting tube 951 and infrared receiving tube 952；
When keycap is pressed, keycap drives two outer ends of swing component to lower swing, so that two swing components The inner be swung up, and cause infrared transmitting tube changed with the light transmission state of infrared receiving tube, realize circuit The electric signal transmission of plate；
When keycap is unclamped, two the inner of swing component return to original position under the screen resilience effect of elastic component so that The outer end of two swing components returns to original position, finally causes that keycap returns to original position.
The keycap of the present embodiment includes panel, and the panel bottom is respectively provided on two sides with least two keycap clips.
The panel bottom of the present embodiment is respectively provided on two sides with least two keycap grabs.
The base of the present embodiment includes base plate, and the position of the upper surface correspondence keycap grab of the base plate is respectively equipped with Base grab 942, a base grab and a keycap grab correspond snapping.When resilience after keycap is pushed, the key Cap grab collides with base grab, so as to produce clear and melodious clickly sound.
The centre position of the base plate of the present embodiment is provided with hollow-out parts.
The clinohedral 943 being respectively arranged at two ends with for limiting elastomer of the hollow-out parts of the present embodiment, clinohedral and base plate It is integrally formed.
The top of the clinohedral of the present embodiment offers the slit 944 for connecting elastomer.
The swing component of the present embodiment includes inboard Sinks parallel to each other, outer link and orthogonal with inboard Sinks Two counter-jibs, the inboard Sinks, the outer link and two counter-jibs enclose a square box, the keycap of homonymy Clip is connected with the outer link of homonymy so that outer link can be driven when pressing keycap to lower swing, so that Inboard Sinks are swung up.
The upper surface of the base plate of the present embodiment is respectively provided on two sides with swing component locating part 941, the swing component locating part Including mutually perpendicular first riser and the second riser, the second riser is connected to the middle part of the first riser, first riser and Second riser is abutted so as to realize to the spacing of swing component with the inner of the counter-jib respectively.
Bottom surface in the middle part of the inboard Sinks of the present embodiment is provided with two limited blocks 931, one of limited block and hollow-out parts Side wall abut, another limited block is abutted with the opposite side wall of hollow-out parts.
The elastic component of the present embodiment includes from left to right integrally formed first curved portions, the second curved portions, flat part 921st, the 3rd curved portions and the 4th curved portions, the outer end of first curved portions are inserted in one of the slit on clinohedral top In, the outer end of the 4th curved portions is inserted in the slit on another clinohedral top, and one of inboard Sinks are located in institute State between the second curved portions and the flat part, another inboard Sinks be located in the 3rd curved portions and the flat part it Between.
The longitudinal section of the assembly of second curved portions, the flat part and the 3rd curved portions of the present embodiment is in " work " Font.
Outer link is pushed down on when keycap is pressed, because elastic component combines two inboard Sinks, from And two swing components synchronizing moving together is realized, so the diverse location that user is pressed against keycap can realize the same of level Moved further, will not occur asymmetric inclination or card key.
Elastic component two ends couple with the slit on clinohedral top respectively, and are interference fit, and elastic component two ends are because of interference Coordinate and stress makes middle part exert a force downwards, so as to promote two inboard Sinks to move down, and outer link is tilted upward Rise, allow keycap to move up the state for recovering static therewith；Keycap is pushed in user and promote two outer links, after compression The middle part of this inboard Sinks and elastic component is synchronously upturned movement, and cross elastic component when mobile position couples with slit Horizontal plane when, the active force of elastic component be switched fast and produce one pressing paragraph sense.
Optical prism 932 is fixedly connected with the middle part of the outer link of the present embodiment, one of optical prism is located at red The surface of emission pipe, another optical prism is located at the surface of infrared receiving tube.
The optical prism of the present embodiment is freeform optics prism.
The reflecting surface of the freeform optics prism of the present embodiment be free form surface, the free form surface be quadratic surface or Off axis paraboloid mirror, the free form surface also acts as the effect for assembling light in addition to light is transferred.
The infrared transmitting tube of the present embodiment is upper luminous infrared transmitting tube, and the infrared receiving tube is upper reception infrared receiver Pipe.
When keycap is in relaxation state, the light that infrared transmitting tube sends is by the optics above infrared transmitting tube Prism carries out being totally reflected convergence and turnover, in light collimated incident to another optical prism, is carried out again by the optical prism complete After reflection turnover and convergence, focus in the infrared receiving tube of lower section, electric current is produced in infrared receiving tube, so that triggers circuit Conducting；When keycap is pushed, two optical prisms are moved down simultaneously, from the optical prism above infrared transmitting tube out Collimated ray can not incide the optical prism above infrared receiving tube, infrared receiving tube does not receive light, no Electric current can be produced, so as to cause circuit to disconnect.
Embodiment 10
As shown in Figure 25 to Figure 27, a kind of ultrathin key switching structure with pressing paragraph sense of the present embodiment, bag Keycap 1010, base 1040 and the circuit board 1050 being sequentially connected from top to bottom are included, is provided between the keycap and the base Two mutually symmetrical with swing components 1030, two outer ends of swing component are fixedly connected with the keycap respectively, and the base is provided with Elastic component 1020, the inner of two swing components is fixedly connected with the elastic component respectively, and the outer end position of swing component is than pendulum The inner position of moving part is high, and circuit board is provided with infrared transmitting tube 1051 and infrared receiving tube 1052；
When keycap is pressed, keycap drives two outer ends of swing component to lower swing, so that two swing components The inner be swung up, and cause infrared transmitting tube changed with the light transmission state of infrared receiving tube, realize circuit The electric signal transmission of plate；
When keycap is unclamped, two the inner of swing component return to original position under the screen resilience effect of elastic component so that The outer end of two swing components returns to original position, finally causes that keycap returns to original position.
The keycap of the present embodiment includes panel, and the panel bottom is respectively provided on two sides with least two keycap clips.
The panel bottom of the present embodiment is respectively provided on two sides with least two keycap grabs.
The base of the present embodiment includes base plate, and the position of the upper surface correspondence keycap grab of the base plate is respectively equipped with Base grab 1042, a base grab and a keycap grab correspond snapping.When resilience after keycap is pushed, the key Cap grab collides with base grab, so as to produce clear and melodious clickly sound.
The centre position of the base plate of the present embodiment is provided with hollow-out parts.
The clinohedral 1043 being respectively arranged at two ends with for limiting elastomer of the hollow-out parts of the present embodiment, clinohedral and base plate It is integrally formed.
The top of the clinohedral of the present embodiment offers the slit 1044 for connecting elastomer.
The swing component of the present embodiment includes inboard Sinks parallel to each other, outer link and orthogonal with inboard Sinks Two counter-jibs, the inboard Sinks, the outer link and two counter-jibs enclose a square box, the keycap of homonymy Clip is connected with the outer link of homonymy so that outer link can be driven when pressing keycap to lower swing, so that Inboard Sinks are swung up.
The upper surface of the base plate of the present embodiment is respectively provided on two sides with swing component locating part 1041, the swing component locating part Including mutually perpendicular first riser and the second riser, the second riser is connected to the middle part of the first riser, first riser and Second riser is abutted so as to realize to the spacing of swing component with the inner of the counter-jib respectively.
The inboard Sinks of the present embodiment are provided with the connecting rod gap 1031 passed through for elastic component.
The connecting rod gap of the present embodiment is L-shaped.
The elastic component of the present embodiment includes from left to right integrally formed first curved portions, link joint feature 1021 and second Curved portions, the link joint feature passes through two connecting rod gaps respectively, and the outer end of first curved portions is inserted in one of tiltedly In the slit on face body top, the outer end of second curved portions is inserted in the slit on another clinohedral top.
The link joint feature of the present embodiment includes from left to right integrally formed first connection board, connection transverse slat and second Connection board, first connection board and second connection board are vertical with the connection transverse slat respectively.
Outer link is pushed down on when keycap is pressed, because elastic component combines two inboard Sinks, from And two swing components synchronizing moving together is realized, so the diverse location that user is pressed against keycap can realize the same of level Moved further, will not occur asymmetric inclination or card key.
Elastic component two ends couple with the slit on clinohedral top respectively, and are interference fit, and elastic component two ends are because of interference Coordinate and stress makes middle part exert a force downwards, so as to promote two inboard Sinks to move down, and outer link is tilted upward Rise, allow keycap to move up the state for recovering static therewith；Keycap is pushed in user and promote two outer links, after compression The middle part of this inboard Sinks and elastic component is synchronously upturned movement, and cross elastic component when mobile position couples with slit Horizontal plane when, the active force of elastic component be switched fast and produce one pressing paragraph sense.
Optical prism is fixedly connected with the middle part of the outer link of the present embodiment, one of optical prism is located at infrared hair The surface of pipe is penetrated, another optical prism is located at the surface of infrared receiving tube.
The optical prism of the present embodiment is freeform optics prism.
The reflecting surface of the freeform optics prism of the present embodiment be free form surface, the free form surface be quadratic surface or Off axis paraboloid mirror, the free form surface also acts as the effect for assembling light in addition to light is transferred.
The infrared transmitting tube of the present embodiment is upper luminous infrared transmitting tube, and the infrared receiving tube is upper reception infrared receiver Pipe.
When keycap is in relaxation state, the light that infrared transmitting tube sends is by the optics above infrared transmitting tube Prism 1032a carries out being totally reflected convergence and turnover, in light collimated incident to another optical prism 1032b, by the optical prism After carrying out total reflection turnover again and assembling, focus in the infrared receiving tube of lower section, electric current is produced in infrared receiving tube, from And triggers circuit is turned on；When keycap is pushed, two optical prisms are moved down simultaneously, from the light above infrared transmitting tube Prism collimated ray out can not be incided in the optical prism above infrared receiving tube, and infrared receiving tube is received not To light, it is impossible to produce electric current, so as to cause circuit to disconnect.
Keycap character illumination LED is additionally provided with the circuit board of the present embodiment, the keycap character illumination LED is monochromatic LED, double Color LED or three-color LED.
Embodiment 11
As shown in Figure 28 to Figure 30, a kind of ultrathin key switching structure with pressing paragraph sense of the present embodiment, bag Keycap 1110, base 1140 and the circuit board 1150 being sequentially connected from top to bottom are included, is provided between the keycap and the base Two mutually symmetrical with swing components 1130, two outer ends of swing component are fixedly connected with the keycap respectively, and the base is provided with Elastic component, the inner of two swing components is fixedly connected with the elastic component respectively, and swing component is compared in the outer end position of swing component Inner position it is high, circuit board is provided with infrared transmitting tube 1151 and infrared receiving tube 1152；
When keycap is pressed, keycap drives two outer ends of swing component to lower swing, so that two swing components The inner be swung up, and cause infrared transmitting tube changed with the light transmission state of infrared receiving tube, realize circuit The electric signal transmission of plate；
When keycap is unclamped, two the inner of swing component return to original position under the screen resilience effect of elastic component so that The outer end of two swing components returns to original position, finally causes that keycap returns to original position.
The keycap of the present embodiment includes panel, and the panel bottom is respectively provided on two sides with least two keycap clips.
The panel bottom of the present embodiment is respectively provided on two sides with least two keycap grabs.
The base of the present embodiment includes base plate, and the position of the upper surface correspondence keycap grab of the base plate is respectively equipped with Base grab 1142, a base grab and a keycap grab correspond snapping.When resilience after keycap is pushed, the key Cap grab collides with base grab, so as to produce clear and melodious clickly sound.
The centre position of the base plate of the present embodiment is provided with hollow-out parts.
The clinohedral 1143 being respectively arranged at two ends with for limiting elastomer of the hollow-out parts of the present embodiment, clinohedral and base plate It is integrally formed.
The top of the clinohedral of the present embodiment offers the slit 1144 for connecting elastomer.
The swing component of the present embodiment includes inboard Sinks parallel to each other, outer link and orthogonal with inboard Sinks Two counter-jibs, the inboard Sinks, the outer link and two counter-jibs enclose a square box, the keycap of homonymy Clip is connected with the outer link of homonymy so that outer link can be driven when pressing keycap to lower swing, so that Inboard Sinks are swung up.
The upper surface of the base plate of the present embodiment is respectively provided on two sides with swing component locating part 1141, the swing component locating part Including mutually perpendicular first riser and the second riser, the second riser is connected to the middle part of the first riser, first riser and Second riser is abutted so as to realize to the spacing of swing component with the inner of the counter-jib respectively.
Gripping block 1121 is additionally provided between the keycap of the present embodiment and the base, the middle part of two inboard Sinks is worn respectively Cross the gripping block.
The both sides of the gripping block of the present embodiment offer gripping block gap respectively.
The elastic component of the present embodiment includes the first arcuate member 1120 and the second arcuate member, and the outer end of first arcuate member is inserted Enter in the slit on one of clinohedral top, the slit on another clinohedral top is inserted in the outer end of second arcuate member In, the inner of first arcuate member is inserted in one of in gripping block gap, and the inner insertion of second arcuate member is another In individual gripping block gap.
Outer link is pushed down on when keycap is pressed, because elastic component combines two inboard Sinks, from And two swing components synchronizing moving together is realized, so the diverse location that user is pressed against keycap can realize the same of level Moved further, will not occur asymmetric inclination or card key.
Elastic component two ends couple with the slit on clinohedral top respectively, and are interference fit, and elastic component two ends are because of interference Coordinate and stress makes middle part exert a force downwards, so as to promote two inboard Sinks to move down, and outer link is tilted upward Rise, allow keycap to move up the state for recovering static therewith；Keycap is pushed in user and promote two outer links, after compression The middle part of this inboard Sinks and elastic component is synchronously upturned movement, and cross elastic component when mobile position couples with slit Horizontal plane when, the active force of elastic component be switched fast and produce one pressing paragraph sense.
Optical prism is fixedly connected with the middle part of the outer link of the present embodiment, one of optical prism is located at infrared hair The surface of pipe is penetrated, another optical prism is located at the surface of infrared receiving tube.
The optical prism of the present embodiment is freeform optics prism.
The reflecting surface of the freeform optics prism of the present embodiment be free form surface, the free form surface be quadratic surface or Off axis paraboloid mirror, the free form surface also acts as the effect for assembling light in addition to light is transferred.
The infrared transmitting tube of the present embodiment is upper luminous infrared transmitting tube, and the infrared receiving tube is upper reception infrared receiver Pipe.
When keycap is in relaxation state, the light that infrared transmitting tube sends is by the optics above infrared transmitting tube Prism 1132a carries out being totally reflected convergence and turnover, in light collimated incident to another optical prism 1132b, by the optical prism After carrying out total reflection turnover again and assembling, focus in the infrared receiving tube of lower section, electric current is produced in infrared receiving tube, from And triggers circuit is turned on；When keycap is pushed, two optical prisms are moved down simultaneously, from the light above infrared transmitting tube Prism collimated ray out can not be incided in the optical prism above infrared receiving tube, and infrared receiving tube is received not To light, it is impossible to produce electric current, so as to cause circuit to disconnect.
Embodiment 12
As shown in Figure 31 to Figure 33, a kind of ultrathin key switching structure with pressing paragraph sense of the present embodiment, bag Keycap 1210, base 1240 and the circuit board 1250 being sequentially connected from top to bottom are included, is provided between the keycap and the base Two mutually symmetrical with swing components 1230, two outer ends of swing component are fixedly connected with the keycap respectively, and the base is provided with Elastic component, the inner of two swing components is fixedly connected with the elastic component respectively, and swing component is compared in the outer end position of swing component Inner position it is high, circuit board is provided with infrared transmitting tube 1251 and infrared receiving tube 1252；
When keycap is pressed, keycap drives two outer ends of swing component to lower swing, so that two swing components The inner be swung up, and cause infrared transmitting tube changed with the light transmission state of infrared receiving tube, realize circuit The electric signal transmission of plate；
When keycap is unclamped, two the inner of swing component return to original position under the screen resilience effect of elastic component so that The outer end of two swing components returns to original position, finally causes that keycap returns to original position.
The keycap of the present embodiment includes panel, and the panel bottom is respectively provided on two sides with least two keycap clips.
The panel bottom of the present embodiment is respectively provided on two sides with least two keycap grabs.
The base of the present embodiment includes base plate, and the position of the upper surface correspondence keycap grab of the base plate is respectively equipped with Base grab 1242, a base grab and a keycap grab correspond snapping.When resilience after keycap is pushed, the key Cap grab collides with base grab, so as to produce clear and melodious clickly sound.
The centre position of the base plate of the present embodiment is provided with hollow-out parts.
The clinohedral 1243 being respectively arranged at two ends with for limiting elastomer of the hollow-out parts of the present embodiment, clinohedral and base plate It is integrally formed.
The top of the clinohedral of the present embodiment offers the slit 1244 for connecting elastomer.
The swing component of the present embodiment includes inboard Sinks parallel to each other, outer link and orthogonal with inboard Sinks Two counter-jibs, the inboard Sinks, the outer link and two counter-jibs enclose a square box, the keycap of homonymy Clip is connected with the outer link of homonymy so that outer link can be driven when pressing keycap to lower swing, so that Inboard Sinks are swung up.
The upper surface of the base plate of the present embodiment is respectively provided on two sides with swing component locating part 1241, the swing component locating part Including mutually perpendicular first riser and the second riser, the second riser is connected to the middle part of the first riser, first riser and Second riser is abutted so as to realize to the spacing of swing component with the inner of the counter-jib respectively.
Bottom surface in the middle part of the inboard Sinks of the present embodiment is provided with two limited blocks 1231, one of limited block and hollow-out parts Side wall abut, another limited block is abutted with the opposite side wall of hollow-out parts.
The elastic component of the present embodiment includes upper shell fragment 1220a and lower shell fragment 1220b, and two inboard Sinks are located in described Between the middle part of upper shell fragment and the lower shell fragment, the upper shell fragment is fixedly connected with the lower shell fragment.
The upper shell fragment of the present embodiment includes from left to right integrally formed first curved portions, upper flat plate portion and the second arc Portion, the upper flat plate portion is affixed with the upper surface of inboard Sinks, and the outer end of first curved portions is inserted in one of clinohedral In the slit on top, the outer end of second curved portions is inserted in the slit on another clinohedral top.
The lower shell fragment of the present embodiment includes from left to right integrally formed 3rd curved portions, lower flat part and the 4th arc Portion, the lower flat part is affixed with the lower surface of inboard Sinks, and the outer end of the 3rd curved portions is inserted in one of clinohedral In the slit on top, the outer end of the 4th curved portions is inserted in the slit on another clinohedral top.
The inner middle part of first curved portions of the present embodiment offers the first snapping mouthful 1221a, in second curved portions The second snapping mouthful is offered in the middle part of end, the inner middle part of the 3rd curved portions is flipped up forming the first engaging portion 1221b, The inner middle part of 4th curved portions is flipped up forming the second engaging portion, first engaging portion and first snapping mouthful Snapping, second engaging portion and second snapping mouthful snapping.
Outer link is pushed down on when keycap is pressed, because elastic component combines two inboard Sinks, from And two swing components synchronizing moving together is realized, so the diverse location that user is pressed against keycap can realize the same of level Moved further, will not occur asymmetric inclination or card key.
Elastic component two ends couple with the slit on clinohedral top respectively, and are interference fit, and elastic component two ends are because of interference Coordinate and stress makes middle part exert a force downwards, so as to promote two inboard Sinks to move down, and outer link is tilted upward Rise, allow keycap to move up the state for recovering static therewith；Keycap is pushed in user and promote two outer links, after compression The middle part of this inboard Sinks and elastic component is synchronously upturned movement, and cross elastic component when mobile position couples with slit Horizontal plane when, the active force of elastic component be switched fast and produce one pressing paragraph sense.
Optical prism is fixedly connected with the middle part of the outer link of the present embodiment, one of optical prism is located at infrared hair The surface of pipe is penetrated, another optical prism is located at the surface of infrared receiving tube.
The optical prism of the present embodiment is freeform optics prism.
The reflecting surface of the freeform optics prism of the present embodiment be free form surface, the free form surface be quadratic surface or Off axis paraboloid mirror, the free form surface also acts as the effect for assembling light in addition to light is transferred.
The infrared transmitting tube of the present embodiment is upper luminous infrared transmitting tube, and the infrared receiving tube is upper reception infrared receiver Pipe.
When keycap is in relaxation state, the light that infrared transmitting tube sends is by the optics above infrared transmitting tube Prism 1232a carries out being totally reflected convergence and turnover, in light collimated incident to another optical prism 1232b, by the optical prism After carrying out total reflection turnover again and assembling, focus in the infrared receiving tube of lower section, electric current is produced in infrared receiving tube, from And triggers circuit is turned on；When keycap is pushed, two optical prisms are moved down simultaneously, from the light above infrared transmitting tube Prism collimated ray out can not be incided in the optical prism above infrared receiving tube, and infrared receiving tube is received not To light, it is impossible to produce electric current, so as to cause circuit to disconnect.
Embodiment 13
As shown in Figure 34 to Figure 36, a kind of ultrathin key switching structure with pressing paragraph sense of the present embodiment, bag Keycap 1310, base 1340 and the circuit board 1350 being sequentially connected from top to bottom are included, is provided between the keycap and the base Two mutually symmetrical with swing components 1330, two outer ends of swing component are fixedly connected with the keycap respectively, and the base is provided with Elastic component, the inner of two swing components is fixedly connected with the elastic component respectively, and swing component is compared in the outer end position of swing component Inner position it is high, circuit board is provided with infrared transmitting tube 1351 and infrared receiving tube 1352；
When keycap is pressed, keycap drives two outer ends of swing component to lower swing, so that two swing components The inner be swung up, and cause infrared transmitting tube changed with the light transmission state of infrared receiving tube, realize circuit The electric signal transmission of plate；
When keycap is unclamped, two the inner of swing component return to original position under the screen resilience effect of elastic component so that The outer end of two swing components returns to original position, finally causes that keycap returns to original position.
The keycap of the present embodiment includes panel, and the panel bottom is respectively provided on two sides with least two keycap clips.
The panel bottom of the present embodiment is respectively provided on two sides with least two keycap grabs.
The base of the present embodiment includes base plate, and the position of the upper surface correspondence keycap grab of the base plate is respectively equipped with Base grab 1342, a base grab and a keycap grab correspond snapping.When resilience after keycap is pushed, the key Cap grab collides with base grab, so as to produce clear and melodious clickly sound.
The centre position of the base plate of the present embodiment is provided with hollow-out parts.
The clinohedral 1343 being respectively arranged at two ends with for limiting elastomer of the hollow-out parts of the present embodiment, clinohedral and base plate It is integrally formed.
The top of the clinohedral of the present embodiment offers the slit 1344 for connecting elastomer.
The swing component of the present embodiment includes inboard Sinks parallel to each other, outer link and orthogonal with inboard Sinks Two counter-jibs, the inboard Sinks, the outer link and two counter-jibs enclose a square box, the keycap of homonymy Clip is connected with the outer link of homonymy so that outer link can be driven when pressing keycap to lower swing, so that Inboard Sinks are swung up.
The upper surface of the base plate of the present embodiment is respectively provided on two sides with swing component locating part 1341, the swing component locating part Including mutually perpendicular first riser and the second riser, the second riser is connected to the middle part of the first riser, first riser and Second riser is abutted so as to realize to the spacing of swing component with the inner of the counter-jib respectively.
Bottom surface in the middle part of the inboard Sinks of the present embodiment is provided with two limited blocks 1331, one of limited block and hollow-out parts Side wall abut, another limited block is abutted with the opposite side wall of hollow-out parts.
The elastic component of the present embodiment includes flexure strip 1320 and elastic tube 1322, and two inboard Sinks are located in the bullet Between piece and the elastic tube, the flexure strip is fixedly connected property with the elastic tube.
The flexure strip of the present embodiment includes from left to right integrally formed first curved portions, flat part and the second curved portions, The flat part is affixed with the lower surface of inboard Sinks or upper surface, and the outer end of first curved portions is inserted in one of inclined-plane In the slit on body top, the outer end of second curved portions is inserted in the slit on another clinohedral top.
The elastic tube of the present embodiment is curved.
The inner middle part of first curved portions of the present embodiment offers the first card interface 1321, and second curved portions are inner Middle part offer the second card interface, one end of the elastic tube and the first card interface clamping, the elastic tube it is another End and the second card interface clamping.
Outer link is pushed down on when keycap is pressed, because elastic component combines two inboard Sinks, from And two swing components synchronizing moving together is realized, so the diverse location that user is pressed against keycap can realize the same of level Moved further, will not occur asymmetric inclination or card key.
Elastic component two ends couple with the slit on clinohedral top respectively, and are interference fit, and elastic component two ends are because of interference Coordinate and stress makes middle part exert a force downwards, so as to promote two inboard Sinks to move down, and outer link is tilted upward Rise, allow keycap to move up the state for recovering static therewith；Keycap is pushed in user and promote two outer links, after compression The middle part of this inboard Sinks and elastic component is synchronously upturned movement, and cross elastic component when mobile position couples with slit Horizontal plane when, the active force of elastic component be switched fast and produce one pressing paragraph sense.
Optical prism is fixedly connected with the middle part of the outer link of the present embodiment, one of optical prism is located at infrared hair The surface of pipe is penetrated, another optical prism is located at the surface of infrared receiving tube.
The optical prism of the present embodiment is freeform optics prism.
The reflecting surface of the freeform optics prism of the present embodiment be free form surface, the free form surface be quadratic surface or Off axis paraboloid mirror, the free form surface also acts as the effect for assembling light in addition to light is transferred.
The infrared transmitting tube of the present embodiment is upper luminous infrared transmitting tube, and the infrared receiving tube is upper reception infrared receiver Pipe.
When keycap is in relaxation state, the light that infrared transmitting tube sends is by the optics above infrared transmitting tube Prism 1332a carries out being totally reflected convergence and turnover, in light collimated incident to another optical prism 1332b, by the optical prism After carrying out total reflection turnover again and assembling, focus in the infrared receiving tube of lower section, electric current is produced in infrared receiving tube, from And triggers circuit is turned on；When keycap is pushed, two optical prisms are moved down simultaneously, from the light above infrared transmitting tube Prism collimated ray out can not be incided in the optical prism above infrared receiving tube, and infrared receiving tube is received not To light, it is impossible to produce electric current, so as to cause circuit to disconnect.
Keycap character illumination LED is additionally provided with the circuit board of the present embodiment, the keycap character illumination LED is monochromatic LED, double Color LED or three-color LED.
Embodiment 14
As shown in figure 37, because requirement of the freeform optics prism to machining accuracy is higher, to eccentric and dislocation Susceptibility is also higher, so the optical prism of the present embodiment uses right-angled triangular prism, the bias of right-angled triangular prism and dislocation, Influence to light path is smaller, aspherical collimation is respectively equipped with directly over the infrared transmitting tube and the infrared receiving tube poly- Optical lens, aspherical Quasi-straight light-focusing lens are located at the underface of right-angled triangular prism.
The reflecting surface of the right-angled triangular prism of the present embodiment is 45 degree of planes of inclination.
The aspherical Quasi-straight light-focusing lens of the present embodiment are made up of upper and lower two the aspherical of projection.
It is saturating by aspherical Quasi-straight light-focusing from the light that infrared transmitting tube 1451 sends when button is in relaxation state Mirror 1445a is collimated, and the right-angled triangular prism 1432a that the light after collimation is incided above infrared transmitting tube carries out total reflection and turns Folding, in light collimated incident to the right-angled triangular prism 1432b positioned at the top of infrared receiving tube 1452, is totally reflected is turned again Folding, collimated ray after turnover is during by lower section, another aspherical Quasi-straight light-focusing lens 1445b focuses on infrared receiving tube, Electric current is produced in infrared receiving tube, so that triggers circuit is turned on；When button pressed, two right-angled triangular prisms are simultaneously to moving down It is dynamic, it is infrared to connect in the right-angled triangular prism that the collimated ray shot out from side right-angled triangular prism can not incide opposite side Electric current can not be produced in closed tube, so as to cause circuit to disconnect.The reflecting surface of the right-angled triangular prism of the present embodiment is plane, is only risen To the effect of light ray bending, the effect of convergence of rays is not had.
The remainder of the present embodiment is same as Example 1, repeats no more here.
Embodiment 15
As shown in figure 38, the optical prism of the present embodiment is right-angled triangular prism, the infrared transmitting tube and described infrared Fresnel Quasi-straight light-focusing lens are respectively equipped with directly over reception pipe, Fresnel Quasi-straight light-focusing lens are located at right-angled triangular prism Underface.
The reflecting surface of the right-angled triangular prism of the present embodiment is 45 degree of planes of inclination.
The upper surface of the Fresnel Quasi-straight light-focusing lens of the present embodiment is ring grain Fresnel surface, the Fresnel Quasi-straight light-focusing The lower surface of lens is aspherical or sphere.
It is saturating by Fresnel Quasi-straight light-focusing from the light that infrared transmitting tube 1551 sends when button is in relaxation state Mirror 1545a is collimated, and the right angle trigonometry rib 1532a mirrors that the light after collimation is incided above infrared transmitting tube carry out total reflection and turn Folding, in light collimated incident to the right-angled triangular prism 1532b positioned at the top of infrared receiving tube 1552, is totally reflected is turned again Roll over, the collimated ray after turnover is focused in infrared receiving tube by lower section another Fresnel Quasi-straight light-focusing lens 1545b, Electric current is produced in infrared receiving tube, so that triggers circuit is turned on；When button pressed, two right-angled triangular prisms are simultaneously to moving down It is dynamic, it is infrared to connect in the right-angled triangular prism that the collimated ray shot out from side right-angled triangular prism can not incide opposite side Electric current can not be produced in closed tube, so as to cause circuit to disconnect.The reflecting surface of the right-angled triangular prism of the present embodiment is plane, is only risen To the effect of light ray bending, the effect of convergence of rays is not had.
The remainder of the present embodiment is same as Example 1, repeats no more here.
Embodiment 16
As shown in figure 39, free-form surface mirror is fixedly connected with the middle part of the outer link of the present embodiment, one of them Free-form surface mirror is just gone up located at the surface of infrared transmitting tube, another free-form surface mirror located at infrared receiving tube Side, the free-form surface mirror plays a part of optically focused and turnover light path simultaneously.Free-form surface mirror is except light is carried out Outside turnover, the effect for assembling light is also acted as.
When keycap is in relaxation state, the light that infrared transmitting tube 1651 sends is by being located above infrared transmitting tube Free-form surface mirror 1632a carries out being totally reflected convergence and turnover, light collimated incident to another free-form surface mirror 1632b In, after being carried out total reflection turnover again by the free-form surface mirror and assembling, focus on the infrared receiving tube 1652 of lower section In, electric current is produced in infrared receiving tube, so that triggers circuit is turned on；When keycap is pushed, two free-form surface mirrors are simultaneously Move down, can not be incided positioned at infrared from the collimated ray out of the free-form surface mirror above infrared transmitting tube In free-form surface mirror above reception pipe, infrared receiving tube does not receive light, it is impossible to produce electric current, so as to cause circuit Disconnect.
The remainder of the present embodiment is same as Example 1, repeats no more here.
Embodiment 17
As shown in figure 40, plane mirror, one of plane are fixedly connected with the middle part of the outer link of the present embodiment Speculum is located at the surface of infrared transmitting tube, and another plane mirror is described infrared located at the surface of infrared receiving tube Aspherical Quasi-straight light-focusing lens are respectively equipped with directly over transmitting tube and the infrared receiving tube, aspherical Quasi-straight light-focusing lens set In the underface of plane mirror.
To incline 45 degree of planes, the reflecting surface is coated with metallic reflective coating or Jie to the reflecting surface of the plane mirror of the present embodiment Matter reflectance coating.
The aspherical Quasi-straight light-focusing lens of the present embodiment are made up of upper and lower two the aspherical of projection.
It is saturating by aspherical Quasi-straight light-focusing from the light that infrared transmitting tube 1751 sends when button is in relaxation state Mirror 1745a is collimated, and the plane mirror 1732a that the light after collimation incides above infrared transmitting tube carries out total reflection turnover, Light collimated incident is totally reflected turnover again in the plane mirror 1732b above infrared receiving tube 1752, is turned Collimated ray after folding is infrared during by lower section, another aspherical Quasi-straight light-focusing lens 1745b focuses on infrared receiving tube Electric current is produced in reception pipe, so that triggers circuit is turned on；When button pressed, two plane mirrors are moved down simultaneously, from The collimated ray that side plane mirror shoots out can not be incided in the plane mirror of opposite side, can not in infrared receiving tube Electric current is produced, so as to cause circuit to disconnect.The reflecting surface of the plane mirror of the present embodiment is plane, only serves light ray bending Effect, does not have the effect of convergence of rays.
The remainder of the present embodiment is same as Example 1, repeats no more here.
Embodiment 18
Plane mirror is fixedly connected with the middle part of the outer link of the present embodiment, one of plane mirror is located at red The surface of emission pipe, another plane mirror is located at the surface of infrared receiving tube, the infrared transmitting tube and described Fresnel Quasi-straight light-focusing lens are respectively equipped with directly over infrared receiving tube, Fresnel Quasi-straight light-focusing lens are located at plane mirror Underface.
To incline 45 degree of planes, the reflecting surface is coated with metallic reflective coating or Jie to the reflecting surface of the plane mirror of the present embodiment Matter reflectance coating.
The upper surface of the Fresnel Quasi-straight light-focusing lens of the present embodiment is ring grain Fresnel surface, the Fresnel Quasi-straight light-focusing The lower surface of lens is aspherical or sphere.
It is accurate by Fresnel Quasi-straight light-focusing lens from the light that infrared transmitting tube sends when button is in relaxation state Directly, the plane mirror that the light after collimation is incided above infrared transmitting tube carries out total reflection turnover, and light collimated incident is arrived In the plane mirror above infrared receiving tube, turnover is totally reflected again, under the collimated ray after turnover passes through Another Fresnel Quasi-straight light-focusing lens focus of side produce electric current, so as to trigger electricity in infrared receiving tube in infrared receiving tube Road turns on；When button pressed, two plane mirrors are moved down simultaneously, from the collimated light that side plane mirror shoots out Line can not be incided in the plane mirror of opposite side, and electric current can not be produced in infrared receiving tube, so as to cause circuit to disconnect.This The reflecting surface of the plane mirror of embodiment is plane, only serves the effect of light ray bending, does not have the effect of convergence of rays.
The remainder of the present embodiment is same as Example 1, repeats no more here.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than the present invention is protected The limitation of scope is protected, although being explained to the present invention with reference to preferred embodiment, one of ordinary skill in the art should Work as understanding, technical scheme can be modified or equivalent, without deviating from the reality of technical solution of the present invention Matter and scope.

Claims (68)

1. a kind of with the ultrathin key switching structure for pressing paragraph sense, it is characterised in that：Including being sequentially connected from top to bottom Keycap, base and circuit board, two mutually symmetrical with swing components, two swing components are provided between the keycap and the base Outer end be fixedly connected with the keycap respectively, the base is provided with elastic component, two swing components it is inner respectively with the bullet Property part is fixedly connected, and the outer end position of swing component is higher than the inner position of swing component, and circuit board is provided with infrared hair Penetrate pipe and infrared receiving tube；
When keycap is pressed, keycap drives two outer ends of swing component to lower swing, so that two swing components is interior End is swung up, and causes that infrared transmitting tube changes with the light transmission state of infrared receiving tube, realizes circuit board Electric signal is transmitted；
When keycap is unclamped, two the inner of swing component return to original position under the screen resilience effect of elastic component so that two The outer end of swing component returns to original position, finally causes that keycap returns to original position.
2. according to claim 1 a kind of with the ultrathin key switching structure for pressing paragraph sense, it is characterised in that：Institute Keycap is stated including panel, the panel bottom is respectively provided on two sides with least two keycap clips.
3. according to claim 2 a kind of with the ultrathin key switching structure for pressing paragraph sense, it is characterised in that：Institute That states panel bottom is respectively provided on two sides with least two keycap grabs.
4. according to claim 3 a kind of with the ultrathin key switching structure for pressing paragraph sense, it is characterised in that：Institute Stating base includes base plate, and the position of the upper surface correspondence keycap grab of the base plate is respectively equipped with base grab, a bottom Seat grab and a keycap grab correspond snapping.
5. according to claim 4 a kind of with the ultrathin key switching structure for pressing paragraph sense, it is characterised in that：Institute The centre position hair for stating base plate has hollow-out parts.
6. according to claim 5 a kind of with the ultrathin key switching structure for pressing paragraph sense, it is characterised in that：Institute The clinohedral being respectively arranged at two ends with for limiting elastomer of hollow-out parts is stated, clinohedral is integrally formed with base plate.
7. according to claim 6 a kind of with the ultrathin key switching structure for pressing paragraph sense, it is characterised in that：Institute The top for stating clinohedral offers slit for connecting elastomer.
8. according to claim 7 a kind of with the ultrathin key switching structure for pressing paragraph sense, it is characterised in that：Institute Stating swing component includes inboard Sinks parallel to each other, outer link and two counter-jibs mutually perpendicular with inboard Sinks, institute State inboard Sinks, the outer link and two counter-jibs and enclose a square box, the keycap clip of homonymy is outer with homonymy Side connecting rod connection.
9. according to claim 8 a kind of with the ultrathin key switching structure for pressing paragraph sense, it is characterised in that：Institute The upper surface for stating base plate is respectively provided on two sides with swing component locating part, and the swing component locating part includes that mutually perpendicular first stands Plate and the second riser, the second riser are connected to the middle part of the first riser, first riser and second riser respectively with institute The inner of counter-jib is stated to abut so as to realize to the spacing of swing component.
10. according to claim 8 a kind of with the ultrathin key switching structure for pressing paragraph sense, it is characterised in that： The plate upper surface is respectively provided on two sides with two base plate fulcrums.
A kind of 11. ultrathin key switching structures with pressing paragraph sense according to claim 8, it is characterised in that： The both sides of the plate upper surface offer two bottom plate grooves respectively.
A kind of 12. ultrathin key switching structures with pressing paragraph sense according to claim 8, it is characterised in that： The plate upper surface is respectively provided on two sides with two axle sleeves.
A kind of 13. ultrathin key switching structures with pressing paragraph sense according to claim 9, it is characterised in that： The inboard Sinks middle part is provided with connecting rod locating piece towards the side of the outer link.
A kind of 14. ultrathin key switching structures with pressing paragraph sense according to claim 9, it is characterised in that： The inboard Sinks middle part is provided with two pin locating pieces back to the side of the outer link.
A kind of 15. ultrathin key switching structures with pressing paragraph sense according to claim 10, it is characterised in that： The bottom surface of each counter-jib is respectively equipped with counter-jib groove, and a base plate fulcrum correspondence is absorbed in a counter-jib groove.
A kind of 16. ultrathin key switching structures with pressing paragraph sense according to claim 11, it is characterised in that： The bottom surface of each counter-jib is respectively equipped with counter-jib fulcrum, and a counter-jib fulcrum correspondence is absorbed in a bottom plate groove.
A kind of 17. ultrathin key switching structure with pressing paragraph sense according to claim 15 or 16, its feature It is：Bottom surface in the middle part of the inboard Sinks is provided with two limited blocks, and one of limited block is abutted with the side wall of hollow-out parts, Another limited block is abutted with the opposite side wall of hollow-out parts.
A kind of 18. ultrathin key switching structures with pressing paragraph sense according to claim 12, it is characterised in that： The medial surface of the counter-jib is provided with short axle, and a short axle connects one to one with an axle sleeve.
A kind of 19. ultrathin key switching structures with pressing paragraph sense according to claim 18, it is characterised in that： The inboard Sinks middle part is provided with connecting rod locating piece towards the side of the outer link.
A kind of 20. ultrathin key switching structures with pressing paragraph sense according to claim 18, it is characterised in that： The inboard Sinks middle part is provided with two pin locating pieces back to the side of the outer link.
A kind of 21. ultrathin key switching structures with pressing paragraph sense according to claim 18, it is characterised in that： Bottom surface in the middle part of the inboard Sinks is provided with two limited blocks, and one of limited block is abutted with the side wall of hollow-out parts, another Individual limited block is abutted with the opposite side wall of hollow-out parts.
A kind of 22. ultrathin key switching structures with pressing paragraph sense according to claim 9, it is characterised in that： Bottom surface in the middle part of the inboard Sinks is provided with two limited blocks, and one of limited block is abutted with the side wall of hollow-out parts, another Individual limited block is abutted with the opposite side wall of hollow-out parts.
A kind of 23. ultrathin key switching structures with pressing paragraph sense according to claim 9, it is characterised in that： The inboard Sinks are provided with the connecting rod gap passed through for elastic component.
A kind of 24. ultrathin key switching structures with pressing paragraph sense according to claim 23, it is characterised in that： The connecting rod gap is L-shaped.
A kind of 25. ultrathin key switching structures with pressing paragraph sense according to claim 9, it is characterised in that： Gripping block is additionally provided between the keycap and the base, the gripping block is each passed through in the middle part of two inboard Sinks.
A kind of 26. ultrathin key switching structures with pressing paragraph sense according to claim 25, it is characterised in that： The both sides of the gripping block offer gripping block gap respectively.
A kind of 27. ultrathin key switching structure with pressing paragraph sense according to claim 13 or 19, its feature It is：The elastic component includes from left to right integrally formed first curved portions, flat part and the second curved portions, the flat part Upper surface with inboard Sinks is affixed, and the outer end of first curved portions is inserted in one of in the slit on clinohedral top, institute Insert the slit on another clinohedral top in the outer end for stating the second curved portions.
A kind of 28. ultrathin key switching structures with pressing paragraph sense according to claim 27, it is characterised in that： The inner middle part of first curved portions is downwardly turned over to form the first engaging portion, and the inner middle part of second curved portions is turned over downwards Turn to form the second engaging portion, first engaging portion and a connecting rod locating piece snapping, second engaging portion connects with another Bar locating piece snapping.
A kind of 29. ultrathin key switching structures with pressing paragraph sense according to claim 13, it is characterised in that： The elastic component include from left to right integrally formed first elastic force adjustment portion, the first curved portions, the second curved portions, flat part, 3rd curved portions, the 4th curved portions and the second elastic force adjustment portion, the flat part are affixed with the lower surface of inboard Sinks, and described One elastic force adjustment portion is inserted in one of in the slit on clinohedral top, and the second elastic force adjustment portion inserts another clinohedral In the slit on top.
A kind of 30. ultrathin key switching structures with pressing paragraph sense according to claim 29, it is characterised in that： The inner middle part of second curved portions is provided with the first engaging portion, and the inner middle part of the 3rd curved portions is provided with the second snapping Portion, first engaging portion and a connecting rod locating piece snapping, second engaging portion and another connecting rod locating piece snapping.
A kind of 31. ultrathin key switching structure with pressing paragraph sense according to claim 14 or 20, its feature It is：The elastic component includes from left to right integrally formed first curved portions, flat part and the second curved portions, the flat part Upper surface with inboard Sinks is affixed, and the outer end of first curved portions is inserted in one of in the slit on clinohedral top, institute Insert the slit on another clinohedral top in the outer end for stating the second curved portions.
A kind of 32. ultrathin key switching structures with pressing paragraph sense according to claim 31, it is characterised in that： The flat part offers through hole, and the through hole is provided with pin, and two inboard Sinks are fixed with the flat part by pin and connected Connect.
A kind of 33. ultrathin key switching structures with pressing paragraph sense according to claim 32, it is characterised in that： Four medial surfaces of pin locating piece are abutted with the pin respectively.
A kind of 34. ultrathin key switching structures with pressing paragraph sense according to claim 17, it is characterised in that： The elastic component includes from left to right integrally formed first curved portions, the second curved portions, flat part, the 3rd curved portions and the 4th Curved portions, the outer end of first curved portions is inserted in one of in the slit on clinohedral top, outside the 4th curved portions End is inserted in the slit on another clinohedral top, and one of inboard Sinks are located in second curved portions and the flat board Between portion, another inboard Sinks is located between the 3rd curved portions and the flat part.
A kind of 35. ultrathin key switching structures with pressing paragraph sense according to claim 34, it is characterised in that： The longitudinal section of the assembly of second curved portions, the flat part and the 3rd curved portions is in " work " font.
A kind of 36. ultrathin key switching structure with pressing paragraph sense according to claim 21 or 22, its feature It is：The elastic component includes from left to right integrally formed first curved portions, the second curved portions, flat part, the 3rd curved portions With the 4th curved portions, the outer end of first curved portions is inserted in one of in the slit on clinohedral top, the 4th arc The outer end in portion is inserted in the slit on another clinohedral top, and one of inboard Sinks are located in second curved portions and institute State between flat part, another inboard Sinks is located between the 3rd curved portions and the flat part.
A kind of 37. ultrathin key switching structures with pressing paragraph sense according to claim 36, it is characterised in that： The longitudinal section of the assembly of second curved portions, the flat part and the 3rd curved portions is in " work " font.
A kind of 38. ultrathin key switching structures with pressing paragraph sense according to claim 24, it is characterised in that： The elastic component includes from left to right integrally formed first curved portions, link joint feature and the second curved portions, and the connecting rod connects Socket part is each passed through two connecting rod gaps, and the outer end of first curved portions is inserted in one of in the slit on clinohedral top, Insert in the slit on another clinohedral top the outer end of second curved portions.
A kind of 39. ultrathin key switching structure with pressing paragraph sense according to claim 38, it is characterised in that： The link joint feature includes from left to right integrally formed first connection board, connection transverse slat and the second connection board, described First connection board and second connection board are vertical with the connection transverse slat respectively.
A kind of 40. ultrathin key switching structures with pressing paragraph sense according to claim 26, it is characterised in that： The elastic component includes the first arcuate member and the second arcuate member, and the outer end of first arcuate member is inserted in one of in clinohedral In the slit in portion, the outer end of second arcuate member is inserted in the slit on another clinohedral top, first arcuate member The inner is inserted in one of in gripping block gap, and the inner of second arcuate member is inserted in another gripping block gap.
A kind of 41. ultrathin key switching structures with pressing paragraph sense according to claim 22, it is characterised in that： The elastic component includes upper shell fragment and lower shell fragment, and two inboard Sinks are located in the middle part of the upper shell fragment and the lower shell fragment Between, the upper shell fragment is fixedly connected with the lower shell fragment.
A kind of 42. ultrathin key switching structures with pressing paragraph sense according to claim 41, it is characterised in that： The upper shell fragment includes from left to right integrally formed first curved portions, upper flat plate portion and the second curved portions, the upper flat plate portion Upper surface with inboard Sinks is affixed, and the outer end of first curved portions is inserted in one of in the slit on clinohedral top, institute Insert the slit on another clinohedral top in the outer end for stating the second curved portions.
A kind of 43. ultrathin key switching structures with pressing paragraph sense according to claim 42, it is characterised in that： The lower shell fragment includes from left to right integrally formed 3rd curved portions, lower flat part and the 4th curved portions, the lower flat part Lower surface with inboard Sinks is affixed, and the outer end of the 3rd curved portions is inserted in one of in the slit on clinohedral top, institute Insert the slit on another clinohedral top in the outer end for stating the 4th curved portions.
A kind of 44. ultrathin key switching structures with pressing paragraph sense according to claim 43, it is characterised in that： The inner middle part of first curved portions offers the first snapping mouthful, and the inner middle part of second curved portions offers the second button Interface, the inner middle part of the 3rd curved portions is flipped up forming the first engaging portion, the inner middle part of the 4th curved portions It is flipped up forming the second engaging portion, first engaging portion and first snapping mouthful snapping, second engaging portion and institute State the second snapping mouthful snapping.
A kind of 45. ultrathin key switching structures with pressing paragraph sense according to claim 22, it is characterised in that： The elastic component includes flexure strip and elastic tube, and two inboard Sinks are located between the flexure strip and the elastic tube, The flexure strip is fixedly connected with the elastic tube.
A kind of 46. ultrathin key switching structures with pressing paragraph sense according to claim 45, it is characterised in that： The flexure strip includes from left to right integrally formed first curved portions, flat part and the second curved portions, the flat part with it is interior The lower surface of side connecting rod or upper surface are affixed, and the outer end of first curved portions is inserted in one of the slit on clinohedral top In, the outer end of second curved portions is inserted in the slit on another clinohedral top.
A kind of 47. ultrathin key switching structures with pressing paragraph sense according to claim 46, it is characterised in that： The elastic tube is curved.
A kind of 48. ultrathin key switching structures with pressing paragraph sense according to claim 47, it is characterised in that： The inner middle part of first curved portions offers the first card interface, and the inner middle part of second curved portions offers the second card Interface, one end of the elastic tube and the first card interface clamping, the other end of the elastic tube and second card interface Clamping.
49. is a kind of with pressing paragraph sense according to the claim 28,33,35,37,39,40,44 or 48 any one Ultrathin key switching structure, it is characterised in that：Optical prism, one of light are fixedly connected with the middle part of the outer link Prism is learned located at the surface of infrared transmitting tube, another optical prism is located at the surface of infrared receiving tube.
A kind of 50. ultrathin key switching structures with pressing paragraph sense according to claim 49, it is characterised in that： The optical prism is freeform optics prism.
A kind of 51. ultrathin key switching structures with pressing paragraph sense according to claim 50, it is characterised in that： The reflecting surface of the freeform optics prism is free form surface, and the free form surface is quadratic surface or off axis paraboloid mirror, is somebody's turn to do Free form surface also acts as the effect for assembling light in addition to light is transferred.
A kind of 52. ultrathin key switching structures with pressing paragraph sense according to claim 49, it is characterised in that： The optical prism is right-angled triangular prism, and aspheric is respectively equipped with directly over the infrared transmitting tube and the infrared receiving tube Face Quasi-straight light-focusing lens, aspherical Quasi-straight light-focusing lens are located at the underface of right-angled triangular prism.
A kind of 53. ultrathin key switching structures with pressing paragraph sense according to claim 52, it is characterised in that： The reflecting surface of the right-angled triangular prism is 45 degree of planes of inclination.
A kind of 54. ultrathin key switching structures with pressing paragraph sense according to claim 53, it is characterised in that： The aspherical Quasi-straight light-focusing lens are made up of upper and lower two the aspherical of projection.
A kind of 55. ultrathin key switching structures with pressing paragraph sense according to claim 49, it is characterised in that： The optical prism is right-angled triangular prism, and Fei Nie is respectively equipped with directly over the infrared transmitting tube and the infrared receiving tube That Quasi-straight light-focusing lens, Fresnel Quasi-straight light-focusing lens are located at the underface of right-angled triangular prism.
A kind of 56. ultrathin key switching structures with pressing paragraph sense according to claim 55, it is characterised in that： The reflecting surface of the right-angled triangular prism is 45 degree of planes of inclination.
A kind of 57. ultrathin key switching structures with pressing paragraph sense according to claim 56, it is characterised in that： The upper surface of the Fresnel Quasi-straight light-focusing lens is ring grain Fresnel surface, and the lower surface of the Fresnel Quasi-straight light-focusing lens is Aspherical or sphere.
58. is a kind of with pressing paragraph sense according to the claim 28,33,35,37,39,40,44 or 48 any one Ultrathin key switching structure, it is characterised in that：Free-form surface mirror is fixedly connected with the middle part of the outer link, wherein , located at the surface of infrared transmitting tube, another free-form surface mirror is located at infrared receiving tube for one free-form surface mirror Surface, the free-form surface mirror plays a part of optically focused and turnover light path simultaneously.
59. is a kind of with pressing paragraph sense according to the claim 28,33,35,37,39,40,44 or 48 any one Ultrathin key switching structure, it is characterised in that：Plane mirror is fixedly connected with the middle part of the outer link, one of them Plane mirror is located at the surface of infrared transmitting tube, and another plane mirror is described located at the surface of infrared receiving tube Aspherical Quasi-straight light-focusing lens are respectively equipped with directly over infrared transmitting tube and the infrared receiving tube, aspherical Quasi-straight light-focusing is saturating Mirror is located at the underface of plane mirror.
A kind of 60. ultrathin key switching structures with pressing paragraph sense according to claim 59, it is characterised in that： To incline 45 degree of planes, the reflecting surface is coated with metallic reflective coating or dielectric reflection film to the reflecting surface of the plane mirror.
A kind of 61. ultrathin key switching structures with pressing paragraph sense according to claim 61, it is characterised in that： The aspherical Quasi-straight light-focusing lens are made up of upper and lower two the aspherical of projection.
62. is a kind of with pressing paragraph sense according to the claim 28,33,35,37,39,40,44 or 48 any one Ultrathin key switching structure, it is characterised in that：Plane mirror is fixedly connected with the middle part of the outer link, one of them Plane mirror is located at the surface of infrared transmitting tube, and another plane mirror is described located at the surface of infrared receiving tube Fresnel Quasi-straight light-focusing lens are respectively equipped with directly over infrared transmitting tube and the infrared receiving tube, Fresnel Quasi-straight light-focusing is saturating Mirror is located at the underface of plane mirror.
A kind of 63. ultrathin key switching structures with pressing paragraph sense according to claim 62, it is characterised in that： To incline 45 degree of planes, the reflecting surface is coated with metallic reflective coating or dielectric reflection film to the reflecting surface of the plane mirror.
A kind of 64. ultrathin key switching structures with pressing paragraph sense according to claim 63, it is characterised in that： The upper surface of the Fresnel Quasi-straight light-focusing lens is ring grain Fresnel surface, and the lower surface of the Fresnel Quasi-straight light-focusing lens is Aspherical or sphere.
A kind of 65. ultrathin key switching structures with pressing paragraph sense according to claim 30, it is characterised in that： The infrared transmitting tube is the luminous infrared transmitting tube in side, and the infrared receiving tube is that side joint receives infrared receiving tube, the infrared hair Pipe is penetrated to be oppositely arranged with the infrared receiving tube.
A kind of 66. ultrathin type with pressing paragraph sense according to claim 51,54,57,61 or 64 any one is pressed Key switch structure, it is characterised in that：The infrared transmitting tube is upper luminous infrared transmitting tube, and the infrared receiving tube is upper reception Infrared receiving tube.
A kind of 67. ultrathin key switching structures with pressing paragraph sense according to claim 58, it is characterised in that： The infrared transmitting tube is upper luminous infrared transmitting tube, and the infrared receiving tube is upper reception infrared receiving tube.
A kind of 68. ultrathin key switching structures with pressing paragraph sense according to claim 51, it is characterised in that： Keycap character illumination LED is additionally provided with the circuit board.
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