CN106847594B - 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
CN106847594B
CN106847594B CN201611137937.9A CN201611137937A CN106847594B CN 106847594 B CN106847594 B CN 106847594B CN 201611137937 A CN201611137937 A CN 201611137937A CN 106847594 B CN106847594 B CN 106847594B
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CN
China
Prior art keywords
curved portion
keycap
switching structure
key switching
paragraph sense
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CN201611137937.9A
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Chinese (zh)
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CN106847594A (en
Inventor
郎欢标
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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
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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

Abstract

The present invention relates to a kind of ultrathin key switching structures with pressing paragraph sense, including sequentially connected keycap, pedestal and circuit board from top to bottom, two mutually symmetrical with swing components are equipped between keycap and pedestal, pedestal is equipped with elastic component, the outer end position of swing component is higher than the inner end position of swing component, and circuit board is equipped with infrared transmitting tube and infrared receiving tube；When pressing keycap, keycap drives the outer end of two swing components to lower swing, so that the inner end of two swing components is swung up, so that the light of infrared transmitting tube and infrared receiving tube transmitting state changes, realizes the electric signal transmitting of circuit board；When unclamping keycap, the inner end of two swing components returns to original position under the rebound effect of elastic component, so that the outer end of two swing components returns to original position, finally keycap is made to return to original position；The key switching structure can generate 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 fields, and in particular to a kind of ultrathin key with pressing paragraph sense Construction of switch.
Background technique
Currently a popular laptop and tablet computer require fuselage slim, durable and safe.As input The keyboard of device can occupy the major part of available space inside laptop or tablet computer, 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 tablet computer, Apple Inc. propose Publication No. CN 203588895U a kind of key mechanism and The patent of butterfly component, for providing improved key mechanism design.Specifically, the key mechanism of the patent includes: keycap component； Support construction；And butterfly hinge, which includes two adjacent individual alar parts of position, so that between two alar parts Cavity is formed, each alar part includes a pair of of trunnion and a pair of keys cap assembly pin, wherein trunnion and support construction couple, also, keycap Component pin and keycap component couple.One of the patent Example, which has technical effect that, provides improved key mechanism design.Its skill Art feature are as follows: butterfly hinge, two alar parts respectively have a pair of of trunnion 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 intermediate of alar part form cavity, and trunnion and support construction couple, a pair of keys cap assembly Pin is coupled with keycap, is rotated in keystroke procedure around the trunnion of its own.
The patent of Apple Inc. provides improved key mechanism design, and for example it can be realized low travel distance and desired Haptic response.Key mechanism is designed using the double-vane portion for moving 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 individual alar parts, passes through centre Coupling hinge (hinges being easily bent, gear intersect lever hinge) connect and form butterfly hinge together Structure is respectively arranged a pair of of trunnion and a pair of keys cap assembly pin, trunnion and support construction on this butterfly hinge on two alar parts It couples and installs, 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 positions such as corner (center, on, under, left, right, the upper left corner, the upper right corner, the lower left corner, nine, lower right corner etc. location point) when, due to Two alar parts are that the synchronous pushing for comparing balance or rising, while this butterfly hinge formula may be implemented in living-hinge butterfly mechanism Key mechanism is more stable when keycap can be allowed to press, it is not easy to tilt, make input more acurrate when the different position of keycap presses, subtract Fault when inputting less.
However, since the patent uses butterfly hinge Shi Jian mechanism, with following unsurmountable defect: itself Do not have the function of pressing paragraph sense, and without the control function of switch, to realize the function and production of keyboard input switch The paragraph sense (user is allowed to differentiate the location point be connected with aware switch) of raw pressing, needs additionally to 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 favorite keyboard switch of user 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 when inputting operation bad, 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, and fatigability damage is easy to appear during user's Reusability And fail, the increased costs of after-sale service are caused, are brought to user many not convenient, are unfavorable for large-scale popularization and application.
Summary of the invention
The purpose of the present invention is being directed to above-mentioned deficiency in the prior art, a kind of ultrathin type with pressing paragraph sense is provided Key switching structure, the key switching structure can generate 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, long service life reduces after-sale service Cost, be conducive to large-scale popularization and 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 sequentially connected keycap, bottom from top to bottom Seat and circuit board are equipped with two mutually symmetrical with swing components, the outer end point of two swing components between the keycap and the pedestal It is not fixedly connected with the keycap, the pedestal is equipped with elastic component, and the inner end of two swing components is fixed with the elastic component respectively Connection, the outer end position of swing component is higher than the inner end position of swing component, and circuit board is equipped with infrared transmitting tube and red Outer reception pipe；
When pressing keycap, keycap drives the outer end of two swing components to lower swing, so that two swing components Inner end be swung up, and make the light of infrared transmitting tube and infrared receiving tube transmitting state change, realize circuit The electric signal of plate transmits；
When unclamping keycap, the inner end of two swing components returns to original position under the rebound effect of elastic component, so that The outer end of two swing components returns to original position, finally keycap is made to return to original position.
Wherein, the keycap includes panel, and the two sides of the panel bottom are respectively equipped at least two keycap clips.
Wherein, the two sides of the panel bottom are respectively equipped at least two keycap grabs.
Wherein, the pedestal includes bottom plate, and the position that the upper surface of the bottom plate corresponds to the keycap grab is respectively equipped with Pedestal grab, a pedestal grab and a keycap grab correspond snapping.
Wherein, the middle position of the bottom plate is equipped with hollow-out parts.
Wherein, the both ends of the hollow-out parts are respectively provided with the clinohedral of limitation elastomer, clinohedral and bottom plate one Molding.
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, ipsilateral keycap Clip is connect with ipsilateral outer link.
Wherein, the two sides of the upper surface of the bottom plate are respectively equipped with swing component locating part, and the swing component locating part includes Mutually perpendicular first vertical plate and the second vertical plate, the second vertical plate are connected to the middle part of the first vertical plate, first vertical plate and described Second vertical plate abuts to realize the limit to swing component respectively with the inner end of the counter-jib.
Wherein, the two sides of the plate upper surface are respectively equipped with two bottom plate fulcrums.
Wherein, the two sides of the plate upper surface are opened up respectively there are two bottom plate groove.
Wherein, the two sides of the plate upper surface are respectively equipped with two axle sleeves.
Wherein, connecting rod locating piece is equipped with towards the side of the outer link in the middle part of the inboard Sinks.
Wherein, back to setting on the side of the outer link, there are two pin locating pieces in the middle part of the inboard Sinks.
Wherein, the bottom surface of each counter-jib is respectively equipped with counter-jib groove, and a bottom plate fulcrum correspondence falls into 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 falls into a bottom In plate groove.
Wherein, the bottom surface in the middle part of the inboard Sinks is set there are two limited block, and the one of one of limited block and hollow-out parts Side wall abuts, another limited block is abutted with another side wall of hollow-out parts.
Wherein, the medial surface of the counter-jib is equipped with short axle, and a short axle connects one to one with an axle sleeve.
Wherein, connecting rod locating piece is equipped with towards the side of the outer link in the middle part of the inboard Sinks.
Wherein, back to setting on the side of the outer link, there are two pin locating pieces in the middle part of the inboard Sinks.
Wherein, the bottom surface in the middle part of the inboard Sinks is set there are two limited block, and the one of one of limited block and hollow-out parts Side wall abuts, another limited block is abutted with another side wall of hollow-out parts.
Wherein, the bottom surface in the middle part of the inboard Sinks is set there are two limited block, and the one of one of limited block and hollow-out parts Side wall abuts, another limited block is abutted with another side wall of hollow-out parts.
Wherein, the inboard Sinks are equipped with the connecting rod gap passed through for elastic component.
Wherein, the connecting rod gap is L-shaped.
Wherein, it is additionally provided with gripping block between the keycap and the pedestal, is each passed through institute in the middle part of two inboard Sinks State gripping block.
Wherein, the two sides of the gripping block offer gripping block gap respectively.
Wherein, the elastic component includes from left to right integrally formed first curved portion, flat part and the second curved portion, institute The upper surface for stating flat part and inboard Sinks is affixed, and the outer end of first curved portion is inserted in one of the narrow of clinohedral top In seam, the outer end of second curved portion is inserted into the slit on another clinohedral top.
Wherein, it downwardly turns over to form the first engaging portion in the middle part of first curved portion inner end, in second curved portion It downwardly turns 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 portion, the second arc Shape portion, flat part, third curved portion, the 4th curved portion and the second elastic force adjustment portion, the following table of 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 the slit for entering another clinohedral top.
Wherein, the middle part of second curved portion inner end is equipped with the first engaging portion, the middle part of third curved portion inner end Equipped 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 portion, flat part and the second curved portion, institute The upper surface for stating flat part and inboard Sinks is affixed, and the outer end of first curved portion is inserted in one of the narrow of clinohedral top In seam, the outer end of second curved portion is inserted into the slit on another clinohedral top.
Wherein, the flat part offers through-hole, and the through-hole is equipped with pin, two inboard Sinks by pin with it is described Flat part is fixedly connected.
Wherein, the medial surface of four pin locating pieces is abutted with the pin respectively.
Wherein, the elastic component includes from left to right integrally formed first curved portion, the second curved portion, flat part, the The outer end of three curved portions and the 4th curved portion, first curved portion is inserted in one of in the slit on clinohedral top, described The outer end of 4th curved portion is inserted into 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 third curved portion and the flat part.
Wherein, the longitudinal section of the assembly of second curved portion, the flat part and the third curved portion is in " work " Font.
Wherein, the elastic component includes from left to right integrally formed first curved portion, the second curved portion, flat part, the The outer end of three curved portions and the 4th curved portion, first curved portion is inserted in one of in the slit on clinohedral top, described The outer end of 4th curved portion is inserted into 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 third curved portion and the flat part.
Wherein, the longitudinal section of the assembly of second curved portion, the flat part and the third curved portion is in " work " Font.
Wherein, the elastic component includes from left to right integrally formed first curved portion, link joint feature and the second arc Portion, the link joint feature pass through two connecting rod gaps respectively, and the outer end of first curved portion is inserted in one of clinohedral In the slit on top, the outer end of second curved portion is inserted into 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 arc-shaped workpiece and the second arc-shaped workpiece, it is inserted into the outer end of first arc-shaped workpiece In a clinohedral top slit in, the outer end of second arc-shaped workpiece is inserted into the slit on another clinohedral top, institute The inner end for stating the first arc-shaped workpiece is inserted in one of in gripping block gap, another clamping is inserted into the inner end of second arc-shaped workpiece In block gap.
Wherein, the elastic component includes upper elastic slice and lower elastic slice, and two inboard Sinks are located in the upper elastic slice and institute Between the middle part for stating lower elastic slice, the upper elastic slice is fixedly connected with the lower elastic slice.
Wherein, the upper elastic slice includes from left to right integrally formed first curved portion, upper flat plate portion and the second curved portion, The upper flat plate portion and the upper surface of inboard Sinks are affixed, and the outer end of first curved portion is inserted in one of clinohedral top Slit in, the outer end of second curved portion is inserted into the slit on another clinohedral top.
Wherein, the lower elastic slice includes from left to right integrally formed third curved portion, lower flat part and the 4th curved portion, The lower surface of the lower flat part and inboard Sinks is affixed, and the outer end of the third curved portion is inserted in one of clinohedral top Slit in, the outer end of the 4th curved portion is inserted into the slit on another clinohedral top.
Wherein, the first snapping mouth is offered in the middle part of first curved portion inner end, in second curved portion inner end Portion offers the second snapping mouth, is flipped up to form the first engaging portion in the middle part of third curved portion inner end, the 4th arc It is flipped up to form the second engaging portion in the middle part of shape portion inner end, first engaging portion and the first snapping mouth snapping are described Second engaging portion and the second snapping mouth snapping.
Wherein, the elastic component includes elastic piece and elastic tube, and two inboard Sinks are located in the elastic piece and institute It states between elastic tube, the elastic piece is fixedly connected with the elastic tube.
Wherein, the elastic piece includes from left to right integrally formed first curved portion, flat part and the second curved portion, institute The lower surface or upper surface for stating flat part and inboard Sinks are affixed, and the outer end of first curved portion is inserted in one of clinohedral In the slit on top, the outer end of second curved portion is inserted into the slit on another clinohedral top.
Wherein, the elastic tube is arc-shaped.
Wherein, the first card interface is offered in the middle part of first curved portion inner end, in second curved portion inner end Portion offers the second card interface, and one end of the elastic tube and first card interface are clamped, the other end of the elastic tube with The second card interface clamping.
Wherein, optical prism is fixedly connected in the middle part of the outer link, one of optical prism is set to infrared hair The surface of pipe is penetrated, another optical prism is set to 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 act as the effect for assembling light other than light is transferred.
Wherein, the optical prism is right-angled triangular prism, the infrared transmitting tube and the infrared receiving tube just on Side is respectively equipped with aspherical Quasi-straight light-focusing lens, and aspherical Quasi-straight light-focusing lens are set to 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 raised aspherical are formed by upper and lower two.
Wherein, the optical prism is right-angled triangular prism, the infrared transmitting tube and the infrared receiving tube just on Side is respectively equipped with Fresnel Quasi-straight light-focusing lens, and Fresnel Quasi-straight light-focusing lens are set to 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 spherical surface.
Wherein, free-form surface mirror, one of free form surface reflection are fixedly connected in the middle part of the outer link Mirror is set to the surface of infrared transmitting tube, another free-form surface mirror is set to the surface of infrared receiving tube, this is freely bent Face reflecting mirror plays the role of optically focused and turnover optical path simultaneously.
Wherein, plane mirror is fixedly connected in the middle part of the outer link, one of plane mirror is set to red The surface of outer transmitting tube, another plane mirror are set to the surface of infrared receiving tube, the infrared transmitting tube and described Aspherical Quasi-straight light-focusing lens are respectively equipped with right above infrared receiving tube, aspherical Quasi-straight light-focusing lens are set to plane mirror Underface.
Wherein, the reflecting surface of the plane mirror is 45 degree of planes of inclination, which is coated with metallic reflective coating or Jie Matter reflectance coating.
Wherein, the aspherical Quasi-straight light-focusing lens raised aspherical are formed by upper and lower two.
Wherein, plane mirror is fixedly connected in the middle part of the outer link, one of plane mirror is set to red The surface of outer transmitting tube, another plane mirror are set to the surface of infrared receiving tube, the infrared transmitting tube and described Fresnel Quasi-straight light-focusing lens are respectively equipped with right above infrared receiving tube, Fresnel Quasi-straight light-focusing lens are set to plane mirror Underface.
Wherein, the reflecting surface of the plane mirror is 45 degree of planes of inclination, which is coated with metallic reflective coating or Jie 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 spherical surface.
Wherein, the infrared transmitting tube is the luminous infrared transmitting tube in side, and the infrared receiving tube is to flank receipts infrared receiver Pipe, the infrared transmitting tube are 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 on the circuit board.
Beneficial effects of the present invention:
1, this key switching structure itself has been provided with the function that pressing paragraph sense and automatic rebounding reset, and adds without another Dome switch auxiliary, has very big progressive；
2, in conjunction with optoelectronic switch (infrared transmitting tube and infrared receiving tube), the abrasion of no physics conductive contact, service life Reach 50,000,000 times or more, the service life compared to the patent formula of Apple Inc. greatly improves；
3, using the arch shrapnel structure with Double curved arc structure, pressing force is pressing stroke 0.7- between 45-60 grams Between 2mm, the favorite input habit of user can achieve, input is more easily and accurate；
4, the light path control mode of optoelectronic switch uses allows optical path to be kept for normal open, the wink when pressing keycap under static state Between by optical path cutting (by the way that two optical prisms in the middle part of outer link are arranged in a staggered manner so that be located at infrared transmitting tube above Optical prism cannot by light refraction that infrared transmitting tube is shot out to the optical prism being located above infrared receiving tube, thus Prevent the light that infrared receiving tube is emitted from receiving infrared transmitting tube), to realize the conducting and disconnection of switch Function, caused by the avoidable interference because of external light source of this structure the problem of dysfunction.
Detailed description of the invention
Invention is described further using attached drawing, but the embodiments in the accompanying drawings do not constitute any limitation to the present invention, For those of ordinary skill in the art, without creative efforts, it can also be obtained according to the following drawings Its attached drawing.
Fig. 1 is the decomposition texture schematic diagram of embodiment 1.
Fig. 2 is that embodiment 1 hides the structural schematic diagram after keycap.
Fig. 3 is the decomposition texture schematic diagram at another visual angle of embodiment 1.
Fig. 4 is the cross-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 cross-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 cross-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 that embodiment 4 hides the structural schematic diagram after keycap.
Figure 14 is the cross-sectional view of embodiment 4.
Figure 15 is the decomposition texture schematic diagram of embodiment 5.
Figure 16 is the cross-sectional view of embodiment 5.
Figure 17 is the decomposition texture schematic diagram of embodiment 6.
Figure 18 is that embodiment 6 hides the structural schematic diagram after keycap.
Figure 19 is the decomposition texture schematic diagram of embodiment 7.
Figure 20 is that embodiment 7 hides the structural schematic diagram after keycap.
Figure 21 is the decomposition texture schematic diagram of embodiment 8.
Figure 22 is that embodiment 8 hides the structural schematic diagram after keycap.
Figure 23 is the decomposition texture schematic diagram of embodiment 9.
Figure 24 is that embodiment 9 hides the structural schematic diagram after keycap.
Figure 25 is the decomposition texture schematic diagram of embodiment 10.
Figure 26 is that embodiment 10 hides the structural schematic diagram after keycap.
Figure 27 is the cross-sectional view of embodiment 10.
Figure 28 is the decomposition texture schematic diagram of embodiment 11.
Figure 29 is that embodiment 11 hides the structural schematic diagram after keycap.
Figure 30 is the cross-sectional view of embodiment 11.
Figure 31 is the decomposition texture schematic diagram of embodiment 12.
Figure 32 is that embodiment 12 hides the structural schematic diagram after keycap.
Figure 33 is the cross-sectional view of embodiment 12.
Figure 34 is the decomposition texture schematic diagram of embodiment 13.
Figure 35 is that embodiment 13 hides the structural schematic diagram after keycap.
Figure 36 is the cross-sectional view of embodiment 13.
Figure 37 is the cross-sectional view of embodiment 14.
Figure 38 is the cross-sectional view of embodiment 15.
Figure 39 is the cross-sectional view of embodiment 16.
Figure 40 is the cross-sectional view of embodiment 17.
Specific embodiment
The invention will be further described with attached 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 Sequentially connected keycap 110, pedestal 140 and circuit board 150 from top to bottom are equipped between the keycap 110 and the pedestal 140 Two mutually symmetrical with swing components 130, the outer end of two swing components 130 are fixedly connected with the keycap 110 respectively, the pedestal 140 are equipped with elastic component 120, and the inner end of two swing components 130 is fixedly connected with the elastic component 120 respectively, outside swing component 130 Hold position higher than the inner end position of swing component 130, circuit board 150 is equipped with infrared transmitting tube 151 and infrared receiver Pipe 152；
When pressing keycap 110, keycap 110 drives the outer end of two swing components 130 to lower swing, so that two The inner end of a swing component 130 is swung up, and makes the light of infrared transmitting tube 151 and infrared receiving tube 152 transmitting state It changes, realizes the electric signal transmitting of circuit board 150；
When unclamping keycap 110, the inner end of two swing components 130 returns under the rebound effect of elastic component 120 It is in situ, so that the outer end of two swing components 130 returns to original position, keycap 110 is finally made to return to original position.
The keycap 110 of the present embodiment includes panel, and the two sides of the panel bottom are respectively equipped at least two keycap clips 111。
The two sides of the panel bottom of the present embodiment are respectively equipped at least two keycap grabs 112.
The pedestal 140 of the present embodiment includes bottom plate, and the upper surface of the bottom plate corresponds to the position point of the keycap grab 112 It She You not pedestal grab 142, a pedestal grab 142 and an one-to-one correspondence snapping of keycap grab 112.When keycap 110 pushes When springing back later, which collides with pedestal grab 142, to generate clear and melodious clickly sound.
The middle position of the bottom plate of the present embodiment is equipped with hollow-out parts.
The both ends of the hollow-out parts of the present embodiment are respectively provided with the clinohedral 143 of limitation elastomer, 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, ipsilateral Keycap clip 111 is connect with ipsilateral outer link, and outer link is able to drive when so that pressing keycap 110 to the bottom It is dynamic, so that inboard Sinks are swung up.
The two sides of the upper surface of the bottom plate of the present embodiment are respectively equipped with swing component locating part 141, the swing component locating part 141 include mutually perpendicular first vertical plate and the second vertical plate, and the second vertical plate is connected to the middle part of the first vertical plate, first vertical plate It abuts to realize the limit to swing component 130 with the inner end of the counter-jib respectively with second vertical plate.
Connecting rod locating piece 131 is equipped with towards the side of the outer link in the middle part of the inboard Sinks of the present embodiment.
The elastic component 120 of the present embodiment includes from left to right integrally formed first curved portion, flat part and the second arc The upper surface of portion, the flat part and inboard Sinks is affixed, and the outer end of first curved portion is inserted in one of clinohedral 143 In the slit 144 on top, the outer end of second curved portion is inserted into the slit 144 on another 143 top of clinohedral.
It downwardly turns over to form the first engaging portion 121 in the middle part of the first curved portion inner end of the present embodiment, second arc It downwardly turns over to form the second engaging portion in the middle part of portion inner end, first engaging portion 121 and 131 snapping of connecting rod locating piece, Second engaging portion and another 131 snapping of connecting rod locating piece.
Outer link is pushed down on when pressing keycap 110, since elastic component 120 combines two inboard Sinks one It rises, to realize two swing components 130 synchronizing moving together, so user's pressing can be in the different location of keycap 110 It realizes horizontal synchronizing moving, asymmetric inclination or card key will not occur.
120 both ends of elastic component are coupled with the slit 144 on 143 top of clinohedral respectively, and are interference fit, elastic component Stress makes intermediate position exert a force downwards due to interference fit at 120 both ends, so that two inboard Sinks be pushed to move down, and makes outer Side connecting rod is upturned, and keycap 110 is allowed to move up the state for restoring static therewith；Keycap 110 is pushed in user and is pushed Two outer links, the middle part bit synchronization of this inboard Sinks and elastic component 120 is upturned movement after compression, when mobile position When setting (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 It changes and generates a pressing paragraph sense.
Optical prism is fixedly connected in the middle part of the outer link of the present embodiment, one of optical prism is set to infrared hair The surface of pipe 151 is penetrated, another optical prism is set to 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 act as the effect for assembling light other than light is transferred.
The infrared transmitting tube 151 of the present embodiment is upper luminous infrared transmitting tube, and the infrared receiving tube 152 is that upper reception is red Outer reception pipe.
When keycap 110 is in relaxation state, the light that infrared transmitting tube 151 issues, which passes through, is located at infrared transmitting tube 151 The optical prism 132a of top carries out total reflection convergence and turnover, light collimated incident 132b into another optical prism, by this After optical prism 132b carries out total reflection turnover again and assembles, focus in the infrared receiving tube 152 of lower section, infrared receiver Electric current is generated in pipe 152, so that trigger circuit is connected；When keycap 110 pushes, two optical prisms move down simultaneously, from The collimated ray that optical prism 132a above infrared transmitting tube 151 comes out cannot be incident on positioned at infrared receiving tube 152 In the optical prism 132b of top, infrared receiving tube 152 does not receive light, cannot generate electric current, so as to cause circuit disconnection.
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 Sequentially connected keycap 210, pedestal 240 and circuit board 250 from top to bottom are equipped between the keycap 210 and the pedestal 240 Two mutually symmetrical with swing components 230, the outer end of two swing components 230 are fixedly connected with the keycap 210 respectively, the pedestal 240 are equipped with elastic component 220, and the inner end of two swing components 230 is fixedly connected with the elastic component 220 respectively, outside swing component 230 Hold position higher than the inner end position of swing component 230, circuit board 250 is equipped with infrared transmitting tube 251 and infrared receiver Pipe 252；
When pressing keycap 210, keycap 210 drives the outer end of two swing components 230 to lower swing, so that two The inner end of a swing component 230 is swung up, and makes the light of infrared transmitting tube 251 and infrared receiving tube 252 transmitting state It changes, realizes the electric signal transmitting of circuit board 250；
When unclamping keycap 210, the inner end of two swing components 230 returns under the rebound effect of elastic component 220 It is in situ, so that the outer end of two swing components 230 returns to original position, keycap 210 is finally made to return to original position.
The keycap 210 of the present embodiment includes panel, and the two sides of the panel bottom are respectively equipped at least two keycap clips 211。
The two sides of the panel bottom of the present embodiment are respectively equipped at least two keycap grabs 212.
The pedestal 240 of the present embodiment includes bottom plate, and the upper surface of the bottom plate corresponds to the position point of the keycap grab 212 It She You not pedestal grab 242, a pedestal grab 242 and an one-to-one correspondence snapping of keycap grab 212.When keycap 210 pushes When springing back later, which collides with pedestal grab 242, to generate clear and melodious clickly sound.
The middle position of the bottom plate of the present embodiment is equipped with hollow-out parts.
The both ends of the hollow-out parts of the present embodiment are respectively provided with the clinohedral 243 of limitation elastomer, 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, ipsilateral Keycap clip 211 is connect with ipsilateral outer link, and outer link is able to drive when so that pressing keycap 210 to the bottom It is dynamic, so that inboard Sinks are swung up.
The two sides of the upper surface of the bottom plate of the present embodiment are respectively equipped with swing component locating part 241, the swing component locating part 241 include mutually perpendicular first vertical plate and the second vertical plate, and the second vertical plate is connected to the middle part of the first vertical plate, first vertical plate It abuts to realize the limit to swing component 230 with the inner end of the counter-jib respectively with second vertical plate.
Connecting rod locating piece 231 is equipped with towards the side of the outer link in the middle part of the inboard Sinks of the present embodiment.
The elastic component 220 of the present embodiment includes from left to right integrally formed first elastic force adjustment portion 223, the first curved portion 222, the second curved portion 221, flat part 220, third curved portion, the 4th curved portion and the second elastic force adjustment portion, the flat part 220 are affixed with the lower surfaces of inboard Sinks, and the first elastic force adjustment portion 223 is inserted in one of the narrow of 243 top of clinohedral In seam 244, the second elastic force adjustment portion is inserted into the slit 244 on another 243 top of clinohedral.First elastic force adjustment portion 223 and second elastic force adjustment portion be used to adjust the dynamics of reset (key switching structure is allowed to return to original state), be also used for adjusting Save the dynamics of outer link pressing.
The middle part of second curved portion, 221 inner end of the present embodiment is equipped with the first engaging portion 224, third curved portion inner end Middle part be equipped with the second engaging portion, first engaging portion 224 and 231 snapping of connecting rod locating piece, second engaging portion With another 231 snapping of connecting rod locating piece.
Outer link is pushed down on when pressing keycap 210, since elastic component 220 combines two inboard Sinks one It rises, to realize two swing components 230 synchronizing moving together, so user's pressing can be in the different location of keycap 210 It realizes horizontal synchronizing moving, asymmetric inclination or card key will not occur.
220 both ends of elastic component are coupled with the slit 244 on 243 top of clinohedral respectively, and are interference fit, elastic component Stress makes intermediate position exert a force downwards due to interference fit at 220 both ends, so that two inboard Sinks be pushed to move down, and makes outer Side connecting rod is upturned, and keycap 210 is allowed to move up the state for restoring static therewith；Keycap 210 is pushed in user and is pushed Two outer links, the middle part bit synchronization of this inboard Sinks and elastic component 220 is upturned movement after compression, when mobile position Set when crossing the horizontal plane that elastic component 220 and slit 244 couple, the active force of elastic component 220 be switched fast and generate one by Press 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 red to flank receipts Outer reception pipe, the infrared transmitting tube 251 are oppositely arranged with the infrared receiving tube 252.
The structure realizes the disconnection and conducting of infrared transmitting tube 251 and 252 optical path of infrared receiving tube by lever action, when When keycap 210 is in relaxation state, outer link is located above, and inboard Sinks are then below, and is set on inboard Sinks Connecting rod locating piece 231, the light that infrared transmitting tube 251 issues is blocked, cannot be generated in the infrared receiving tube 252 of the other side Trigger current, key are in the state disconnected；When keycap 210 pushes, outer link stress is pushed, under leverage, band Dynamic inboard Sinks move upwards, and inboard Sinks drive connecting rod locating piece 231 also to move upwards, and at this moment penetrate from infrared transmitting tube 251 Light out is incident in infrared receiving tube 252, and trigger current is generated in infrared receiving tube 252, and keycap 210 is on shape State.Infrared transmitting tube 251 and infrared receiving tube 252, which are arranged under elastic component 220, to be interfered it to avoid the light on periphery, make The function of product is more stable.
Keycap character illumination LED 253 and 254 is additionally provided on 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 Sequentially connected keycap 310, pedestal 340 and circuit board 350 from top to bottom are equipped with mutually opposite between the keycap and the pedestal Two swing components 330 claimed, the outer end of two swing components are fixedly connected with the keycap respectively, and the pedestal is equipped with elastic component 320, the inner end 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 Hold position high, circuit board is equipped with infrared transmitting tube 351 and infrared receiving tube 352；
When pressing keycap, keycap drives the outer end of two swing components to lower swing, so that two swing components Inner end be swung up, and make the light of infrared transmitting tube and infrared receiving tube transmitting state change, realize circuit The electric signal of plate transmits；
When unclamping keycap, the inner end of two swing components returns to original position under the rebound effect of elastic component, so that The outer end of two swing components returns to original position, finally keycap is made to return to original position.
The keycap of the present embodiment includes panel, and the two sides of the panel bottom are respectively equipped at least two keycap clips 311.
The two sides of the panel bottom of the present embodiment are respectively equipped at least two keycap grabs 312.
The pedestal of the present embodiment includes bottom plate, and the position that the upper surface of the bottom plate corresponds to the keycap grab is respectively equipped with Pedestal grab 342, a pedestal grab and a keycap grab correspond snapping.When being sprung back after keycap pushes, the key Cap grab collides with pedestal grab, to generate clear and melodious clickly sound.
The middle position of the bottom plate of the present embodiment is equipped with hollow-out parts.
The both ends of the hollow-out parts of the present embodiment are respectively provided with the clinohedral 343 of limitation elastomer, clinohedral and bottom 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, ipsilateral keycap Clip is connect with ipsilateral outer link, and outer link is able to drive when so that pressing keycap to lower swing, so that Inboard Sinks are swung up.
The two sides of the upper surface of the bottom plate of the present embodiment are respectively equipped with swing component locating part 341, the swing component locating part Including mutually perpendicular first vertical plate and the second vertical plate, the second vertical plate is connected to the middle part of the first vertical plate, first vertical plate and Second vertical plate abuts to realize the limit to swing component respectively with the inner end of the counter-jib.
Back to setting on the side of the outer link, there are two pin locating pieces 331 in the middle part of the inboard Sinks of the present embodiment.
The elastic component of the present embodiment includes from left to right integrally formed first curved portion, flat part and the second curved portion, The upper surface of the flat part and inboard Sinks is affixed, and the outer end of first curved portion is inserted in one of clinohedral top In slit, the outer end of second curved portion is inserted into the slit on another clinohedral top.
The flat part of the present embodiment offers through-hole 321, and the through-hole is equipped with pin 360, and two inboard Sinks pass through pin Nail is fixedly connected with the flat part.
Wherein, the medial surface of four pin locating pieces is abutted with the pin respectively.
Outer link is pushed down on when pressing keycap, since elastic component combines two inboard Sinks, from And realize two swing components synchronizing moving together, so user's pressing may be implemented in the different location of keycap it is horizontal same Asymmetric inclination or card key will not occur for moved further.
Elastic component both ends are coupled with the slit on clinohedral top respectively, and are interference fit, and elastic component both ends are because of interference Cooperation and stress makes intermediate position exert a force downwards, so that two inboard Sinks be pushed to move down, and outer link is made to tilt upward It rises, keycap is allowed to move up the state for restoring static therewith；Keycap is pushed in user and pushes two outer links, after compression The middle part bit synchronization of this inboard Sinks and elastic component is upturned movement, when elastic component is crossed and slit couples in mobile position Horizontal plane when, the active force of elastic component is switched fast and generates a pressing paragraph sense.
Optical prism is fixedly connected in the middle part of the outer link of the present embodiment, one of optical prism is set to infrared hair The surface of pipe is penetrated, another optical prism is set to 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 act as the effect for assembling light other than 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 issues passes through the optics being located above infrared transmitting tube Prism 332a carries out total reflection convergence and turnover, and light collimated incident is into another optical prism 332b, again by the optical prism It is secondary to carry out after being totally reflected turnover and assembling, it focuses in the infrared receiving tube of lower section, electric current is generated in infrared receiving tube, thus Trigger circuit conducting；When keycap pushes, two optical prisms move down simultaneously, from the optics being located above infrared transmitting tube The collimated ray that prism comes out cannot be incident in the optical prism above infrared receiving tube, and infrared receiving tube does not receive Light cannot generate electric current, so as to cause circuit disconnection.
Keycap character illumination LED is additionally provided on the circuit board of the present embodiment, which 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, packet Sequentially connected keycap 410, pedestal 440 and circuit board 450 from top to bottom are included, is equipped between the keycap and the pedestal mutual Symmetrical two swing components 430, the outer end of two swing components are fixedly connected with the keycap respectively, and the pedestal is equipped with elastic component 420, the inner end 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 Hold position high, circuit board is equipped with infrared transmitting tube 451 and infrared receiving tube 452；
When pressing keycap, keycap drives the outer end of two swing components to lower swing, so that two swing components Inner end be swung up, and make the light of infrared transmitting tube and infrared receiving tube transmitting state change, realize circuit The electric signal of plate transmits；
When unclamping keycap, the inner end of two swing components returns to original position under the rebound effect of elastic component, so that The outer end of two swing components returns to original position, finally keycap is made to return to original position.
The keycap of the present embodiment includes panel, and the two sides of the panel bottom are respectively equipped at least two keycap clips 411.
The two sides of the panel bottom of the present embodiment are respectively equipped at least two keycap grabs 412.
The pedestal of the present embodiment includes bottom plate, and the position that the upper surface of the bottom plate corresponds to the keycap grab is respectively equipped with Pedestal grab 442, a pedestal grab and a keycap grab correspond snapping.When being sprung back after keycap pushes, the key Cap grab collides with pedestal grab, to generate clear and melodious clickly sound.
The middle position of the bottom plate of the present embodiment is equipped with hollow-out parts.
The both ends of the hollow-out parts of the present embodiment are respectively provided with the clinohedral 443 of limitation elastomer, clinohedral and bottom 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, ipsilateral keycap Clip is connect with ipsilateral outer link, and outer link is able to drive when so that pressing keycap to lower swing, so that Inboard Sinks are swung up.
The two sides of the plate upper surface of the present embodiment are respectively equipped with two bottom plate fulcrums 441.
Wherein, the bottom surface of each counter-jib is respectively equipped with counter-jib groove, and a bottom plate fulcrum correspondence falls into a balance In arm groove.Bottom plate fulcrum and counter-jib groove, play the role of balance pivot, allow swing component around bottom plate fulcrum It swings, when keycap pushes and rises, swing component will not all around be staggered.
Bottom surface in the middle part of the inboard Sinks of the present embodiment is set there are two limited block 431, one of limited block and hollow-out parts One side wall abut, another limited block abuts with another side wall of hollow-out parts.
The elastic component of the present embodiment includes from left to right integrally formed first curved portion, the second curved portion, flat part 421, the outer end of third curved portion and the 4th curved portion, first curved portion is inserted in one of the slit on clinohedral top In, the outer end of the 4th curved portion is inserted into the slit on another clinohedral top, and one of inboard Sinks are located in institute State between the second curved portion and the flat part, another inboard Sinks be located in the third curved portion and the flat part it Between.
The longitudinal section of the assembly of second curved portion of the present embodiment, the flat part and the third curved portion is in " work " Font.
Outer link is pushed down on when pressing keycap, since elastic component combines two inboard Sinks, from And realize two swing components synchronizing moving together, so user's pressing may be implemented in the different location of keycap it is horizontal same Asymmetric inclination or card key will not occur for moved further.
Elastic component both ends are coupled with the slit on clinohedral top respectively, and are interference fit, and elastic component both ends are because of interference Cooperation and stress makes intermediate position exert a force downwards, so that two inboard Sinks be pushed to move down, and outer link is made to tilt upward It rises, keycap is allowed to move up the state for restoring static therewith；Keycap is pushed in user and pushes two outer links, after compression The middle part bit synchronization of this inboard Sinks and elastic component is upturned movement, when elastic component is crossed and slit couples in mobile position Horizontal plane when, the active force of elastic component is switched fast and generates a pressing paragraph sense.
Optical prism is fixedly connected in the middle part of the outer link of the present embodiment, one of optical prism is set to infrared hair The surface of pipe is penetrated, another optical prism is set to 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 act as the effect for assembling light other than 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 issues passes through the optics being located above infrared transmitting tube Prism 432a carries out total reflection convergence and turnover, light collimated incident 432b into another optical prism, again by the optical prism It is secondary to carry out after being totally reflected turnover and assembling, it focuses in the infrared receiving tube of lower section, electric current is generated in infrared receiving tube, thus Trigger circuit conducting；When keycap pushes, two optical prisms move down simultaneously, from the optics being located above infrared transmitting tube The collimated ray that prism comes out cannot be incident in the optical prism above infrared receiving tube, and infrared receiving tube does not receive Light cannot generate electric current, so as to cause circuit disconnection.
Keycap character illumination LED is additionally provided on the circuit board of the present embodiment, which 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, packet Sequentially connected keycap 510, pedestal 540 and circuit board 550 from top to bottom are included, is equipped between the keycap and the pedestal mutual Symmetrical two swing components 530, the outer end of two swing components are fixedly connected with the keycap respectively, and the pedestal is equipped with elastic component 520, the inner end 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 Hold position high, circuit board is equipped with infrared transmitting tube and infrared receiving tube；
When pressing keycap, keycap drives the outer end of two swing components to lower swing, so that two swing components Inner end be swung up, and make the light of infrared transmitting tube and infrared receiving tube transmitting state change, realize circuit The electric signal of plate transmits；
When unclamping keycap, the inner end of two swing components returns to original position under the rebound effect of elastic component, so that The outer end of two swing components returns to original position, finally keycap is made to return to original position.
The keycap of the present embodiment includes panel, and the two sides of the panel bottom are respectively equipped at least two keycap clips.
The two sides of the panel bottom of the present embodiment are respectively equipped at least two keycap grabs.
The pedestal of the present embodiment includes bottom plate, and the position that the upper surface of the bottom plate corresponds to the keycap grab is respectively equipped with Pedestal grab, a pedestal grab and a keycap grab correspond snapping.When being sprung back after keycap pushes, the keycap card Hook collides with pedestal grab, to generate clear and melodious clickly sound.
The middle position of the bottom plate of the present embodiment is equipped with hollow-out parts.
The both ends of the hollow-out parts of the present embodiment are respectively provided with the clinohedral of limitation elastomer, clinohedral and bottom plate one Molding.
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, ipsilateral keycap Clip is connect with ipsilateral outer link, and outer link is able to drive when so that pressing keycap to lower swing, so that Inboard Sinks are swung up.
The two sides of the plate upper surface of the present embodiment are opened up respectively there are two bottom plate groove 541.
Wherein, the bottom surface of each counter-jib is respectively equipped with counter-jib fulcrum, and a counter-jib fulcrum correspondence falls into a bottom In plate groove.Bottom plate groove and counter-jib fulcrum, play the role of balance pivot, allow swing component around counter-jib branch Spot wobble, when keycap pushes and rises, swing component will not all around be staggered.
Bottom surface in the middle part of the inboard Sinks of the present embodiment is set there are two limited block, and the one of one of limited block and hollow-out parts Side wall abuts, another limited block is abutted with another side wall of hollow-out parts.
The elastic component of the present embodiment includes from left to right integrally formed first curved portion, the second curved portion, flat part, the The outer end of three curved portions and the 4th curved portion, first curved portion is inserted in one of in the slit on clinohedral top, described The outer end of 4th curved portion is inserted into 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 third curved portion and the flat part.
The longitudinal section of the assembly of second curved portion of the present embodiment, the flat part and the third curved portion is in " work " Font.
Outer link is pushed down on when pressing keycap, since elastic component combines two inboard Sinks, from And realize two swing components synchronizing moving together, so user's pressing may be implemented in the different location of keycap it is horizontal same Asymmetric inclination or card key will not occur for moved further.
Elastic component both ends are coupled with the slit on clinohedral top respectively, and are interference fit, and elastic component both ends are because of interference Cooperation and stress makes intermediate position exert a force downwards, so that two inboard Sinks be pushed to move down, and outer link is made to tilt upward It rises, keycap is allowed to move up the state for restoring static therewith；Keycap is pushed in user and pushes two outer links, after compression The middle part bit synchronization of this inboard Sinks and elastic component is upturned movement, when elastic component is crossed and slit couples in mobile position Horizontal plane when, the active force of elastic component is switched fast and generates a pressing paragraph sense.
Optical prism is fixedly connected in the middle part of the outer link of the present embodiment, one of optical prism is set to infrared hair The surface of pipe is penetrated, another optical prism is set to 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 act as the effect for assembling light other than 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 issues passes through the optics being located above infrared transmitting tube Prism carries out total reflection convergence and turnover, light collimated incident carry out entirely again into another optical prism, by the optical prism After reflection turnover and convergence, focuses in the infrared receiving tube of lower section, electric current is generated in infrared receiving tube, thus trigger circuit Conducting；When keycap pushes, two optical prisms move down simultaneously, come out from the optical prism being located above infrared transmitting tube Collimated ray cannot be incident in the optical prism above infrared receiving tube, infrared receiving tube does not receive light, no Electric current can be generated, so as to cause circuit disconnection.
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, packet Sequentially connected keycap 610, pedestal 640 and circuit board 650 from top to bottom are included, is equipped between the keycap and the pedestal mutual Symmetrical two swing components 630, the outer end of two swing components are fixedly connected with the keycap respectively, and the pedestal is equipped with elastic component 620, the inner end 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 Hold position high, circuit board is equipped with infrared transmitting tube 651 and infrared receiving tube 652；
When pressing keycap, keycap drives the outer end of two swing components to lower swing, so that two swing components Inner end be swung up, and make the light of infrared transmitting tube and infrared receiving tube transmitting state change, realize circuit The electric signal of plate transmits；
When unclamping keycap, the inner end of two swing components returns to original position under the rebound effect of elastic component, so that The outer end of two swing components returns to original position, finally keycap is made to return to original position.
The keycap of the present embodiment includes panel, and the two sides of the panel bottom are respectively equipped at least two keycap clips.
The two sides of the panel bottom of the present embodiment are respectively equipped at least two keycap grabs.
The pedestal of the present embodiment includes bottom plate, and the position that the upper surface of the bottom plate corresponds to the keycap grab is respectively equipped with Pedestal grab, a pedestal grab and a keycap grab correspond snapping.When being sprung back after keycap pushes, the keycap card Hook collides with pedestal grab, to generate clear and melodious clickly sound.
The middle position of the bottom plate of the present embodiment is equipped with hollow-out parts.
The both ends of the hollow-out parts of the present embodiment are respectively provided with the clinohedral of limitation elastomer, clinohedral and bottom plate one Molding.
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, ipsilateral keycap Clip is connect with ipsilateral outer link, and outer link is able to drive when so that pressing keycap to lower swing, so that Inboard Sinks are swung up.
The two sides of the plate upper surface of the present embodiment are respectively equipped with two axle sleeves 641.
Connecting rod locating piece 631 is equipped with towards the side of the outer link in the middle part of the inboard Sinks of the present embodiment.
The medial surface of the counter-jib of the present embodiment is equipped with short axle 635, and a short axle connects one to one with an axle sleeve.It is short Axis and axle sleeve, play the role of balance pivot, and swing component is swung around short axle, when keycap pushes and rises, Swing component will not all around be staggered.
The elastic component of the present embodiment includes from left to right integrally formed first curved portion, flat part and the second curved portion, The upper surface of the flat part and inboard Sinks is affixed, and the outer end of first curved portion is inserted in one of clinohedral top In slit, the outer end of second curved portion is inserted into the slit on another clinohedral top.
It downwardly turns over to form the first engaging portion 621 in the middle part of the first curved portion inner end of the present embodiment, second arc It downwardly turns over to form the second engaging portion in the middle part of portion inner end, first engaging portion and a connecting rod locating piece snapping, described the Two engaging portion and another connecting rod locating piece snapping.
Outer link is pushed down on when pressing keycap, since elastic component combines two inboard Sinks, from And realize two swing components synchronizing moving together, so user's pressing may be implemented in the different location of keycap it is horizontal same Asymmetric inclination or card key will not occur for moved further.
Elastic component both ends are coupled with the slit on clinohedral top respectively, and are interference fit, and elastic component both ends are because of interference Cooperation and stress makes intermediate position exert a force downwards, so that two inboard Sinks be pushed to move down, and outer link is made to tilt upward It rises, keycap is allowed to move up the state for restoring static therewith；Keycap is pushed in user and pushes two outer links, after compression The middle part bit synchronization of this inboard Sinks and elastic component is upturned movement, when elastic component is crossed and slit couples in mobile position Horizontal plane when, the active force of elastic component is switched fast and generates a pressing paragraph sense.
Optical prism is fixedly connected in the middle part of the outer link of the present embodiment, one of optical prism is set to infrared hair The surface of pipe is penetrated, another optical prism is set to 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 act as the effect for assembling light other than 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 issues passes through the optics being located above infrared transmitting tube Prism carries out total reflection convergence and turnover, light collimated incident carry out entirely again into another optical prism, by the optical prism After reflection turnover and convergence, focuses in the infrared receiving tube of lower section, electric current is generated in infrared receiving tube, thus trigger circuit Conducting；When keycap pushes, two optical prisms move down simultaneously, come out from the optical prism being located above infrared transmitting tube Collimated ray cannot be incident in the optical prism above infrared receiving tube, infrared receiving tube does not receive light, no Electric current can be generated, so as to cause circuit disconnection.
Keycap character illumination LED 653 is additionally provided on the circuit board of the present embodiment, which 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, packet Sequentially connected keycap 710, pedestal 740 and circuit board 750 from top to bottom are included, is equipped between the keycap and the pedestal mutual Symmetrical two swing components 730, the outer end of two swing components are fixedly connected with the keycap respectively, and the pedestal is equipped with elastic component 720, the inner end 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 Hold position high, circuit board is equipped with infrared transmitting tube 751 and infrared receiving tube 752；
When pressing keycap, keycap drives the outer end of two swing components to lower swing, so that two swing components Inner end be swung up, and make the light of infrared transmitting tube and infrared receiving tube transmitting state change, realize circuit The electric signal of plate transmits；
When unclamping keycap, the inner end of two swing components returns to original position under the rebound effect of elastic component, so that The outer end of two swing components returns to original position, finally keycap is made to return to original position.
The keycap of the present embodiment includes panel, and the two sides of the panel bottom are respectively equipped at least two keycap clips.
The two sides of the panel bottom of the present embodiment are respectively equipped at least two keycap grabs.
The pedestal of the present embodiment includes bottom plate, and the position that the upper surface of the bottom plate corresponds to the keycap grab is respectively equipped with Pedestal grab, a pedestal grab and a keycap grab correspond snapping.When being sprung back after keycap pushes, the keycap card Hook collides with pedestal grab, to generate clear and melodious clickly sound.
The middle position of the bottom plate of the present embodiment is equipped with hollow-out parts.
The both ends of the hollow-out parts of the present embodiment are respectively provided with the clinohedral of limitation elastomer, clinohedral and bottom plate one Molding.
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, ipsilateral keycap Clip is connect with ipsilateral outer link, and outer link is able to drive when so that pressing keycap to lower swing, so that Inboard Sinks are swung up.
The two sides of the plate upper surface of the present embodiment are respectively equipped with two axle sleeves 741.
Back to setting on the side of the outer link, there are two pin locating pieces 731 in the middle part of the inboard Sinks of the present embodiment.
The medial surface of the counter-jib of the present embodiment is equipped with short axle 735, and a short axle connects one to one with an axle sleeve.It is short Axis and axle sleeve, play the role of balance pivot, and swing component is swung around short axle, when keycap pushes and rises, Swing component will not all around be staggered.
The elastic component of the present embodiment includes from left to right integrally formed first curved portion, flat part and the second curved portion, The upper surface of the flat part and inboard Sinks is affixed, and the outer end of first curved portion is inserted in one of clinohedral top In slit, the outer end of second curved portion is inserted into the slit on another clinohedral top.
The flat part of the present embodiment offers through-hole 721, and the through-hole is equipped with pin 760, and two inboard Sinks pass through pin Nail is fixedly connected with the flat part.
Wherein, the medial surface of four pin locating pieces is abutted with the pin respectively.
Outer link is pushed down on when pressing keycap, since elastic component combines two inboard Sinks, from And realize two swing components synchronizing moving together, so user's pressing may be implemented in the different location of keycap it is horizontal same Asymmetric inclination or card key will not occur for moved further.
Elastic component both ends are coupled with the slit on clinohedral top respectively, and are interference fit, and elastic component both ends are because of interference Cooperation and stress makes intermediate position exert a force downwards, so that two inboard Sinks be pushed to move down, and outer link is made to tilt upward It rises, keycap is allowed to move up the state for restoring static therewith；Keycap is pushed in user and pushes two outer links, after compression The middle part bit synchronization of this inboard Sinks and elastic component is upturned movement, when elastic component is crossed and slit couples in mobile position Horizontal plane when, the active force of elastic component is switched fast and generates a pressing paragraph sense.
Optical prism is fixedly connected in the middle part of the outer link of the present embodiment, one of optical prism is set to infrared hair The surface of pipe is penetrated, another optical prism is set to 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 act as the effect for assembling light other than 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 issues passes through the optics being located above infrared transmitting tube Prism carries out total reflection convergence and turnover, light collimated incident carry out entirely again into another optical prism, by the optical prism After reflection turnover and convergence, focuses in the infrared receiving tube of lower section, electric current is generated in infrared receiving tube, thus trigger circuit Conducting；When keycap pushes, two optical prisms move down simultaneously, come out from the optical prism being located above infrared transmitting tube Collimated ray cannot be incident in the optical prism above infrared receiving tube, infrared receiving tube does not receive light, no Electric current can be generated, so as to cause circuit disconnection.
Keycap character illumination LED 753 is additionally provided on the circuit board of the present embodiment, which 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, packet Sequentially connected keycap 810, pedestal 840 and circuit board 850 from top to bottom are included, is equipped between the keycap and the pedestal mutual Symmetrical two swing components 830, the outer end of two swing components are fixedly connected with the keycap respectively, and the pedestal is equipped with elastic component 820, the inner end 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 Hold position high, circuit board is equipped with infrared transmitting tube 851 and infrared receiving tube 852；
When pressing keycap, keycap drives the outer end of two swing components to lower swing, so that two swing components Inner end be swung up, and make the light of infrared transmitting tube and infrared receiving tube transmitting state change, realize circuit The electric signal of plate transmits；
When unclamping keycap, the inner end of two swing components returns to original position under the rebound effect of elastic component, so that The outer end of two swing components returns to original position, finally keycap is made to return to original position.
The keycap of the present embodiment includes panel, and the two sides of the panel bottom are respectively equipped at least two keycap clips.
The two sides of the panel bottom of the present embodiment are respectively equipped at least two keycap grabs.
The pedestal of the present embodiment includes bottom plate, and the position that the upper surface of the bottom plate corresponds to the keycap grab is respectively equipped with Pedestal grab, a pedestal grab and a keycap grab correspond snapping.When being sprung back after keycap pushes, the keycap card Hook collides with pedestal grab, to generate clear and melodious clickly sound.
The middle position of the bottom plate of the present embodiment is equipped with hollow-out parts.
The both ends of the hollow-out parts of the present embodiment are respectively provided with the clinohedral of limitation elastomer, clinohedral and bottom plate one Molding.
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, ipsilateral keycap Clip is connect with ipsilateral outer link, and outer link is able to drive when so that pressing keycap to lower swing, so that Inboard Sinks are swung up.
The two sides of the plate upper surface of the present embodiment are respectively equipped with two axle sleeves 841.
Bottom surface in the middle part of the inboard Sinks of the present embodiment is set there are two limited block 831, one of limited block and hollow-out parts One side wall abut, another limited block abuts with another side wall of hollow-out parts.
The medial surface of the counter-jib of the present embodiment is equipped with short axle 835, and a short axle connects one to one with an axle sleeve.It is short Axis and axle sleeve, play the role of balance pivot, and swing component is swung around short axle, when keycap pushes and rises, Swing component will not all around be staggered.
The elastic component of the present embodiment includes from left to right integrally formed first curved portion, the second curved portion, flat part 821, the outer end of third curved portion and the 4th curved portion, first curved portion is inserted in one of the slit on clinohedral top In, the outer end of the 4th curved portion is inserted into the slit on another clinohedral top, and one of inboard Sinks are located in institute State between the second curved portion and the flat part, another inboard Sinks be located in the third curved portion and the flat part it Between.
The longitudinal section of the assembly of second curved portion of the present embodiment, the flat part and the third curved portion is in " work " Font.
Outer link is pushed down on when pressing keycap, since elastic component combines two inboard Sinks, from And realize two swing components synchronizing moving together, so user's pressing may be implemented in the different location of keycap it is horizontal same Asymmetric inclination or card key will not occur for moved further.
Elastic component both ends are coupled with the slit on clinohedral top respectively, and are interference fit, and elastic component both ends are because of interference Cooperation and stress makes intermediate position exert a force downwards, so that two inboard Sinks be pushed to move down, and outer link is made to tilt upward It rises, keycap is allowed to move up the state for restoring static therewith；Keycap is pushed in user and pushes two outer links, after compression The middle part bit synchronization of this inboard Sinks and elastic component is upturned movement, when elastic component is crossed and slit couples in mobile position Horizontal plane when, the active force of elastic component is switched fast and generates a pressing paragraph sense.
Optical prism is fixedly connected in the middle part of the outer link of the present embodiment, one of optical prism is set to infrared hair The surface of pipe is penetrated, another optical prism is set to 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 act as the effect for assembling light other than 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 issues passes through the optics being located above infrared transmitting tube Prism carries out total reflection convergence and turnover, light collimated incident carry out entirely again into another optical prism, by the optical prism After reflection turnover and convergence, focuses in the infrared receiving tube of lower section, electric current is generated in infrared receiving tube, thus trigger circuit Conducting；When keycap pushes, two optical prisms move down simultaneously, come out from the optical prism being located above infrared transmitting tube Collimated ray cannot be incident in the optical prism above infrared receiving tube, infrared receiving tube does not receive light, no Electric current can be generated, so as to cause circuit disconnection.
Keycap character illumination LED 853 is additionally provided on the circuit board of the present embodiment, which 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, packet Sequentially connected keycap 910, pedestal 940 and circuit board 950 from top to bottom are included, is equipped between the keycap and the pedestal mutual Symmetrical two swing components 930, the outer end of two swing components are fixedly connected with the keycap respectively, and the pedestal is equipped with elastic component 920, the inner end 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 Hold position high, circuit board is equipped with infrared transmitting tube 951 and infrared receiving tube 952；
When pressing keycap, keycap drives the outer end of two swing components to lower swing, so that two swing components Inner end be swung up, and make the light of infrared transmitting tube and infrared receiving tube transmitting state change, realize circuit The electric signal of plate transmits；
When unclamping keycap, the inner end of two swing components returns to original position under the rebound effect of elastic component, so that The outer end of two swing components returns to original position, finally keycap is made to return to original position.
The keycap of the present embodiment includes panel, and the two sides of the panel bottom are respectively equipped at least two keycap clips.
The two sides of the panel bottom of the present embodiment are respectively equipped at least two keycap grabs.
The pedestal of the present embodiment includes bottom plate, and the position that the upper surface of the bottom plate corresponds to the keycap grab is respectively equipped with Pedestal grab 942, a pedestal grab and a keycap grab correspond snapping.When being sprung back after keycap pushes, the key Cap grab collides with pedestal grab, to generate clear and melodious clickly sound.
The middle position of the bottom plate of the present embodiment is equipped with hollow-out parts.
The both ends of the hollow-out parts of the present embodiment are respectively provided with the clinohedral 943 of limitation elastomer, clinohedral and bottom 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, ipsilateral keycap Clip is connect with ipsilateral outer link, and outer link is able to drive when so that pressing keycap to lower swing, so that Inboard Sinks are swung up.
The two sides of the upper surface of the bottom plate of the present embodiment are respectively equipped with swing component locating part 941, the swing component locating part Including mutually perpendicular first vertical plate and the second vertical plate, the second vertical plate is connected to the middle part of the first vertical plate, first vertical plate and Second vertical plate abuts to realize the limit to swing component respectively with the inner end of the counter-jib.
Bottom surface in the middle part of the inboard Sinks of the present embodiment is set there are two limited block 931, one of limited block and hollow-out parts One side wall abut, another limited block abuts with another side wall of hollow-out parts.
The elastic component of the present embodiment includes from left to right integrally formed first curved portion, the second curved portion, flat part 921, the outer end of third curved portion and the 4th curved portion, first curved portion is inserted in one of the slit on clinohedral top In, the outer end of the 4th curved portion is inserted into the slit on another clinohedral top, and one of inboard Sinks are located in institute State between the second curved portion and the flat part, another inboard Sinks be located in the third curved portion and the flat part it Between.
The longitudinal section of the assembly of second curved portion of the present embodiment, the flat part and the third curved portion is in " work " Font.
Outer link is pushed down on when pressing keycap, since elastic component combines two inboard Sinks, from And realize two swing components synchronizing moving together, so user's pressing may be implemented in the different location of keycap it is horizontal same Asymmetric inclination or card key will not occur for moved further.
Elastic component both ends are coupled with the slit on clinohedral top respectively, and are interference fit, and elastic component both ends are because of interference Cooperation and stress makes intermediate position exert a force downwards, so that two inboard Sinks be pushed to move down, and outer link is made to tilt upward It rises, keycap is allowed to move up the state for restoring static therewith；Keycap is pushed in user and pushes two outer links, after compression The middle part bit synchronization of this inboard Sinks and elastic component is upturned movement, when elastic component is crossed and slit couples in mobile position Horizontal plane when, the active force of elastic component is switched fast and generates a pressing paragraph sense.
Optical prism 932 is fixedly connected in the middle part of the outer link of the present embodiment, one of optical prism is set to red The surface of outer transmitting tube, another optical prism are set to 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 act as the effect for assembling light other than 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 issues passes through the optics being located above infrared transmitting tube Prism carries out total reflection convergence and turnover, light collimated incident carry out entirely again into another optical prism, by the optical prism After reflection turnover and convergence, focuses in the infrared receiving tube of lower section, electric current is generated in infrared receiving tube, thus trigger circuit Conducting；When keycap pushes, two optical prisms move down simultaneously, come out from the optical prism being located above infrared transmitting tube Collimated ray cannot be incident in the optical prism above infrared receiving tube, infrared receiving tube does not receive light, no Electric current can be generated, so as to cause circuit disconnection.
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, packet Sequentially connected keycap 1010, pedestal 1040 and circuit board 1050 from top to bottom are included, is equipped between the keycap and the pedestal Two mutually symmetrical with swing components 1030, the outer end of two swing components are fixedly connected with the keycap respectively, and the pedestal is equipped with Elastic component 1020, the inner end of two swing components are fixedly connected with the elastic component respectively, and the outer end position of swing component is than pendulum The inner end position of moving part is high, and circuit board is equipped with infrared transmitting tube 1051 and infrared receiving tube 1052；
When pressing keycap, keycap drives the outer end of two swing components to lower swing, so that two swing components Inner end be swung up, and make the light of infrared transmitting tube and infrared receiving tube transmitting state change, realize circuit The electric signal of plate transmits；
When unclamping keycap, the inner end of two swing components returns to original position under the rebound effect of elastic component, so that The outer end of two swing components returns to original position, finally keycap is made to return to original position.
The keycap of the present embodiment includes panel, and the two sides of the panel bottom are respectively equipped at least two keycap clips.
The two sides of the panel bottom of the present embodiment are respectively equipped at least two keycap grabs.
The pedestal of the present embodiment includes bottom plate, and the position that the upper surface of the bottom plate corresponds to the keycap grab is respectively equipped with Pedestal grab 1042, a pedestal grab and a keycap grab correspond snapping.When being sprung back after keycap pushes, the key Cap grab collides with pedestal grab, to generate clear and melodious clickly sound.
The middle position of the bottom plate of the present embodiment is equipped with hollow-out parts.
The both ends of the hollow-out parts of the present embodiment are respectively provided with the clinohedral 1043 of limitation elastomer, clinohedral and bottom 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, ipsilateral keycap Clip is connect with ipsilateral outer link, and outer link is able to drive when so that pressing keycap to lower swing, so that Inboard Sinks are swung up.
The two sides of the upper surface of the bottom plate of the present embodiment are respectively equipped with swing component locating part 1041, the swing component locating part Including mutually perpendicular first vertical plate and the second vertical plate, the second vertical plate is connected to the middle part of the first vertical plate, first vertical plate and Second vertical plate abuts to realize the limit to swing component respectively with the inner end of the counter-jib.
The inboard Sinks of the present embodiment are equipped 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 portion, link joint feature 1021 and second Curved portion, the link joint feature pass through two connecting rod gaps respectively, and the outer end of first curved portion is inserted in one of tiltedly In the slit on face body top, the outer end of second curved portion is inserted into 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 pressing keycap, since elastic component combines two inboard Sinks, from And realize two swing components synchronizing moving together, so user's pressing may be implemented in the different location of keycap it is horizontal same Asymmetric inclination or card key will not occur for moved further.
Elastic component both ends are coupled with the slit on clinohedral top respectively, and are interference fit, and elastic component both ends are because of interference Cooperation and stress makes intermediate position exert a force downwards, so that two inboard Sinks be pushed to move down, and outer link is made to tilt upward It rises, keycap is allowed to move up the state for restoring static therewith；Keycap is pushed in user and pushes two outer links, after compression The middle part bit synchronization of this inboard Sinks and elastic component is upturned movement, when elastic component is crossed and slit couples in mobile position Horizontal plane when, the active force of elastic component is switched fast and generates a pressing paragraph sense.
Optical prism is fixedly connected in the middle part of the outer link of the present embodiment, one of optical prism is set to infrared hair The surface of pipe is penetrated, another optical prism is set to 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 act as the effect for assembling light other than 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 issues passes through the optics being located above infrared transmitting tube Prism 1032a carries out total reflection convergence and turnover, and light collimated incident is into another optical prism 1032b, by the optical prism After carrying out total reflection turnover again and assembling, focuses in the infrared receiving tube of lower section, electric current is generated in infrared receiving tube, from And trigger circuit is connected；When keycap pushes, two optical prisms move down simultaneously, from the light being located above infrared transmitting tube Learning the collimated ray that prism comes out cannot be incident in the optical prism above infrared receiving tube, and infrared receiving tube receives not To light, electric current cannot be generated, so as to cause circuit disconnection.
Keycap character illumination LED is additionally provided on the circuit board of the present embodiment, which 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, packet Sequentially connected keycap 1110, pedestal 1140 and circuit board 1150 from top to bottom are included, is equipped between the keycap and the pedestal Two mutually symmetrical with swing components 1130, the outer end of two swing components are fixedly connected with the keycap respectively, and the pedestal is equipped with Elastic component, the inner end of two swing components are fixedly connected with the elastic component respectively, and swing component is compared in the outer end position of swing component Inner end position it is high, circuit board is equipped with infrared transmitting tube 1151 and infrared receiving tube 1152；
When pressing keycap, keycap drives the outer end of two swing components to lower swing, so that two swing components Inner end be swung up, and make the light of infrared transmitting tube and infrared receiving tube transmitting state change, realize circuit The electric signal of plate transmits；
When unclamping keycap, the inner end of two swing components returns to original position under the rebound effect of elastic component, so that The outer end of two swing components returns to original position, finally keycap is made to return to original position.
The keycap of the present embodiment includes panel, and the two sides of the panel bottom are respectively equipped at least two keycap clips.
The two sides of the panel bottom of the present embodiment are respectively equipped at least two keycap grabs.
The pedestal of the present embodiment includes bottom plate, and the position that the upper surface of the bottom plate corresponds to the keycap grab is respectively equipped with Pedestal grab 1142, a pedestal grab and a keycap grab correspond snapping.When being sprung back after keycap pushes, the key Cap grab collides with pedestal grab, to generate clear and melodious clickly sound.
The middle position of the bottom plate of the present embodiment is equipped with hollow-out parts.
The both ends of the hollow-out parts of the present embodiment are respectively provided with the clinohedral 1143 of limitation elastomer, clinohedral and bottom 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, ipsilateral keycap Clip is connect with ipsilateral outer link, and outer link is able to drive when so that pressing keycap to lower swing, so that Inboard Sinks are swung up.
The two sides of the upper surface of the bottom plate of the present embodiment are respectively equipped with swing component locating part 1141, the swing component locating part Including mutually perpendicular first vertical plate and the second vertical plate, the second vertical plate is connected to the middle part of the first vertical plate, first vertical plate and Second vertical plate abuts to realize the limit to swing component respectively with the inner end of the counter-jib.
Gripping block 1121 is additionally provided between the keycap of the present embodiment and the pedestal, the middle part of two inboard Sinks is worn respectively Cross the gripping block.
The two sides of the gripping block of the present embodiment offer gripping block gap respectively.
The elastic component of the present embodiment includes the first arc-shaped workpiece 1120 and the second arc-shaped workpiece, and the outer end of first arc-shaped workpiece is inserted In the slit for entering one of clinohedral top, the slit on another clinohedral top is inserted into the outer end of second arc-shaped workpiece In, the inner end of first arc-shaped workpiece is inserted in one of in gripping block gap, and the inner end insertion of second arc-shaped workpiece is another In a gripping block gap.
Outer link is pushed down on when pressing keycap, since elastic component combines two inboard Sinks, from And realize two swing components synchronizing moving together, so user's pressing may be implemented in the different location of keycap it is horizontal same Asymmetric inclination or card key will not occur for moved further.
Elastic component both ends are coupled with the slit on clinohedral top respectively, and are interference fit, and elastic component both ends are because of interference Cooperation and stress makes intermediate position exert a force downwards, so that two inboard Sinks be pushed to move down, and outer link is made to tilt upward It rises, keycap is allowed to move up the state for restoring static therewith；Keycap is pushed in user and pushes two outer links, after compression The middle part bit synchronization of this inboard Sinks and elastic component is upturned movement, when elastic component is crossed and slit couples in mobile position Horizontal plane when, the active force of elastic component is switched fast and generates a pressing paragraph sense.
Optical prism is fixedly connected in the middle part of the outer link of the present embodiment, one of optical prism is set to infrared hair The surface of pipe is penetrated, another optical prism is set to 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 act as the effect for assembling light other than 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 issues passes through the optics being located above infrared transmitting tube Prism 1132a carries out total reflection convergence and turnover, and light collimated incident is into another optical prism 1132b, by the optical prism After carrying out total reflection turnover again and assembling, focuses in the infrared receiving tube of lower section, electric current is generated in infrared receiving tube, from And trigger circuit is connected；When keycap pushes, two optical prisms move down simultaneously, from the light being located above infrared transmitting tube Learning the collimated ray that prism comes out cannot be incident in the optical prism above infrared receiving tube, and infrared receiving tube receives not To light, electric current cannot be generated, so as to cause circuit disconnection.
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, packet Sequentially connected keycap 1210, pedestal 1240 and circuit board 1250 from top to bottom are included, is equipped between the keycap and the pedestal Two mutually symmetrical with swing components 1230, the outer end of two swing components are fixedly connected with the keycap respectively, and the pedestal is equipped with Elastic component, the inner end of two swing components are fixedly connected with the elastic component respectively, and swing component is compared in the outer end position of swing component Inner end position it is high, circuit board is equipped with infrared transmitting tube 1251 and infrared receiving tube 1252；
When pressing keycap, keycap drives the outer end of two swing components to lower swing, so that two swing components Inner end be swung up, and make the light of infrared transmitting tube and infrared receiving tube transmitting state change, realize circuit The electric signal of plate transmits；
When unclamping keycap, the inner end of two swing components returns to original position under the rebound effect of elastic component, so that The outer end of two swing components returns to original position, finally keycap is made to return to original position.
The keycap of the present embodiment includes panel, and the two sides of the panel bottom are respectively equipped at least two keycap clips.
The two sides of the panel bottom of the present embodiment are respectively equipped at least two keycap grabs.
The pedestal of the present embodiment includes bottom plate, and the position that the upper surface of the bottom plate corresponds to the keycap grab is respectively equipped with Pedestal grab 1242, a pedestal grab and a keycap grab correspond snapping.When being sprung back after keycap pushes, the key Cap grab collides with pedestal grab, to generate clear and melodious clickly sound.
The middle position of the bottom plate of the present embodiment is equipped with hollow-out parts.
The both ends of the hollow-out parts of the present embodiment are respectively provided with the clinohedral 1243 of limitation elastomer, clinohedral and bottom 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, ipsilateral keycap Clip is connect with ipsilateral outer link, and outer link is able to drive when so that pressing keycap to lower swing, so that Inboard Sinks are swung up.
The two sides of the upper surface of the bottom plate of the present embodiment are respectively equipped with swing component locating part 1241, the swing component locating part Including mutually perpendicular first vertical plate and the second vertical plate, the second vertical plate is connected to the middle part of the first vertical plate, first vertical plate and Second vertical plate abuts to realize the limit to swing component respectively with the inner end of the counter-jib.
Bottom surface in the middle part of the inboard Sinks of the present embodiment is set there are two limited block 1231, one of limited block and hollow-out parts One side wall abut, another limited block abuts with another side wall of hollow-out parts.
The elastic component of the present embodiment includes upper elastic slice 1220a and lower elastic slice 1220b, and two inboard Sinks are located in described Between upper elastic slice and the middle part of the lower elastic slice, the upper elastic slice is fixedly connected with the lower elastic slice.
The upper elastic slice of the present embodiment includes from left to right integrally formed first curved portion, upper flat plate portion and the second arc The upper surface of portion, the upper flat plate portion and inboard Sinks is affixed, and the outer end of first curved portion is inserted in one of clinohedral In the slit on top, the outer end of second curved portion is inserted into the slit on another clinohedral top.
The lower elastic slice of the present embodiment includes from left to right integrally formed third curved portion, lower flat part and the 4th arc The lower surface of portion, the lower flat part and inboard Sinks is affixed, and the outer end of the third curved portion is inserted in one of clinohedral In the slit on top, the outer end of the 4th curved portion is inserted into the slit on another clinohedral top.
The first snapping mouth 1221a is offered in the middle part of the first curved portion inner end of the present embodiment, in second curved portion The second snapping mouth is offered in the middle part of end, is flipped up to form the first engaging portion 1221b in the middle part of third curved portion inner end, It is flipped up to form the second engaging portion in the middle part of the 4th curved portion inner end, first engaging portion and the first snapping mouth Snapping, second engaging portion and the second snapping mouth snapping.
Outer link is pushed down on when pressing keycap, since elastic component combines two inboard Sinks, from And realize two swing components synchronizing moving together, so user's pressing may be implemented in the different location of keycap it is horizontal same Asymmetric inclination or card key will not occur for moved further.
Elastic component both ends are coupled with the slit on clinohedral top respectively, and are interference fit, and elastic component both ends are because of interference Cooperation and stress makes intermediate position exert a force downwards, so that two inboard Sinks be pushed to move down, and outer link is made to tilt upward It rises, keycap is allowed to move up the state for restoring static therewith；Keycap is pushed in user and pushes two outer links, after compression The middle part bit synchronization of this inboard Sinks and elastic component is upturned movement, when elastic component is crossed and slit couples in mobile position Horizontal plane when, the active force of elastic component is switched fast and generates a pressing paragraph sense.
Optical prism is fixedly connected in the middle part of the outer link of the present embodiment, one of optical prism is set to infrared hair The surface of pipe is penetrated, another optical prism is set to 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 act as the effect for assembling light other than 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 issues passes through the optics being located above infrared transmitting tube Prism 1232a carries out total reflection convergence and turnover, and light collimated incident is into another optical prism 1232b, by the optical prism After carrying out total reflection turnover again and assembling, focuses in the infrared receiving tube of lower section, electric current is generated in infrared receiving tube, from And trigger circuit is connected；When keycap pushes, two optical prisms move down simultaneously, from the light being located above infrared transmitting tube Learning the collimated ray that prism comes out cannot be incident in the optical prism above infrared receiving tube, and infrared receiving tube receives not To light, electric current cannot be generated, so as to cause circuit disconnection.
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, packet Sequentially connected keycap 1310, pedestal 1340 and circuit board 1350 from top to bottom are included, is equipped between the keycap and the pedestal Two mutually symmetrical with swing components 1330, the outer end of two swing components are fixedly connected with the keycap respectively, and the pedestal is equipped with Elastic component, the inner end of two swing components are fixedly connected with the elastic component respectively, and swing component is compared in the outer end position of swing component Inner end position it is high, circuit board is equipped with infrared transmitting tube 1351 and infrared receiving tube 1352；
When pressing keycap, keycap drives the outer end of two swing components to lower swing, so that two swing components Inner end be swung up, and make the light of infrared transmitting tube and infrared receiving tube transmitting state change, realize circuit The electric signal of plate transmits；
When unclamping keycap, the inner end of two swing components returns to original position under the rebound effect of elastic component, so that The outer end of two swing components returns to original position, finally keycap is made to return to original position.
The keycap of the present embodiment includes panel, and the two sides of the panel bottom are respectively equipped at least two keycap clips.
The two sides of the panel bottom of the present embodiment are respectively equipped at least two keycap grabs.
The pedestal of the present embodiment includes bottom plate, and the position that the upper surface of the bottom plate corresponds to the keycap grab is respectively equipped with Pedestal grab 1342, a pedestal grab and a keycap grab correspond snapping.When being sprung back after keycap pushes, the key Cap grab collides with pedestal grab, to generate clear and melodious clickly sound.
The middle position of the bottom plate of the present embodiment is equipped with hollow-out parts.
The both ends of the hollow-out parts of the present embodiment are respectively provided with the clinohedral 1343 of limitation elastomer, clinohedral and bottom 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, ipsilateral keycap Clip is connect with ipsilateral outer link, and outer link is able to drive when so that pressing keycap to lower swing, so that Inboard Sinks are swung up.
The two sides of the upper surface of the bottom plate of the present embodiment are respectively equipped with swing component locating part 1341, the swing component locating part Including mutually perpendicular first vertical plate and the second vertical plate, the second vertical plate is connected to the middle part of the first vertical plate, first vertical plate and Second vertical plate abuts to realize the limit to swing component respectively with the inner end of the counter-jib.
Bottom surface in the middle part of the inboard Sinks of the present embodiment is set there are two limited block 1331, one of limited block and hollow-out parts One side wall abut, another limited block abuts with another side wall of hollow-out parts.
The elastic component of the present embodiment includes elastic piece 1320 and elastic tube 1322, and two inboard Sinks are located in the bullet Between property piece and the elastic tube, the elastic piece is fixedly connected with the elastic tube.
The elastic piece of the present embodiment includes from left to right integrally formed first curved portion, flat part and the second curved portion, The lower surface or upper surface of the flat part and inboard Sinks are affixed, and the outer end of first curved portion is inserted in one of inclined-plane In the slit on body top, the outer end of second curved portion is inserted into the slit on another clinohedral top.
The elastic tube of the present embodiment is arc-shaped.
The first card interface 1321, second curved portion inner end are offered in the middle part of the first curved portion inner end of the present embodiment Middle part offer the second card interface, one end of the elastic tube and first card interface are clamped, the elastic tube it is another End is clamped with second card interface.
Outer link is pushed down on when pressing keycap, since elastic component combines two inboard Sinks, from And realize two swing components synchronizing moving together, so user's pressing may be implemented in the different location of keycap it is horizontal same Asymmetric inclination or card key will not occur for moved further.
Elastic component both ends are coupled with the slit on clinohedral top respectively, and are interference fit, and elastic component both ends are because of interference Cooperation and stress makes intermediate position exert a force downwards, so that two inboard Sinks be pushed to move down, and outer link is made to tilt upward It rises, keycap is allowed to move up the state for restoring static therewith；Keycap is pushed in user and pushes two outer links, after compression The middle part bit synchronization of this inboard Sinks and elastic component is upturned movement, when elastic component is crossed and slit couples in mobile position Horizontal plane when, the active force of elastic component is switched fast and generates a pressing paragraph sense.
Optical prism is fixedly connected in the middle part of the outer link of the present embodiment, one of optical prism is set to infrared hair The surface of pipe is penetrated, another optical prism is set to 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 act as the effect for assembling light other than 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 issues passes through the optics being located above infrared transmitting tube Prism 1332a carries out total reflection convergence and turnover, and light collimated incident is into another optical prism 1332b, by the optical prism After carrying out total reflection turnover again and assembling, focuses in the infrared receiving tube of lower section, electric current is generated in infrared receiving tube, from And trigger circuit is connected；When keycap pushes, two optical prisms move down simultaneously, from the light being located above infrared transmitting tube Learning the collimated ray that prism comes out cannot be incident in the optical prism above infrared receiving tube, and infrared receiving tube receives not To light, electric current cannot be generated, so as to cause circuit disconnection.
Keycap character illumination LED is additionally provided on the circuit board of the present embodiment, which 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 relatively high, to eccentric and dislocation Susceptibility is also higher, thus the optical prism of the present embodiment use right-angled triangular prism, the bias and dislocation of right-angled triangular prism, Influence to optical path is smaller, and it is poly- that aspherical collimation is respectively equipped with right above the infrared transmitting tube and the infrared receiving tube Optical lens, aspherical Quasi-straight light-focusing lens are set to 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 raised aspherical are formed by upper and lower two.
When key is in relaxation state, the light issued from infrared transmitting tube 1451 is saturating by aspherical Quasi-straight light-focusing Mirror 1445a is collimated, and the light after collimation is incident on the right-angled triangular prism 1432a above infrared transmitting tube and carries out total reflection turn Folding, light collimated incident carry out total reflection again and turn to being located in the right-angled triangular prism 1432b of 1452 top of infrared receiving tube Folding, by lower section, another aspherical Quasi-straight light-focusing lens 1445b is focused in infrared receiving tube the collimated ray after transferring, Electric current is generated in infrared receiving tube, so that trigger circuit is connected；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 that right-angled triangular prism is shot out from side cannot be incident on the other side Electric current cannot be generated in closed tube, so as to cause circuit disconnection.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 rest part of the present embodiment is same as Example 1, and which is not described herein again.
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 right above reception pipe, Fresnel Quasi-straight light-focusing lens are set to 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 spherical surface.
When key is in relaxation state, the light issued from infrared transmitting tube 1551 is saturating by Fresnel Quasi-straight light-focusing Mirror 1545a is collimated, and the light after collimation is incident on the right angle trigonometry rib 1532a mirror above infrared transmitting tube and carries out total reflection turn Folding, light collimated incident carry out total reflection again and turn to being located in the right-angled triangular prism 1532b of 1552 top of infrared receiving tube Folding, the collimated ray after transferring are focused in infrared receiving tube by lower section another Fresnel Quasi-straight light-focusing lens 1545b, Electric current is generated in infrared receiving tube, so that trigger circuit is connected；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 that right-angled triangular prism is shot out from side cannot be incident on the other side Electric current cannot be generated in closed tube, so as to cause circuit disconnection.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 rest part of the present embodiment is same as Example 1, and which is not described herein again.
Embodiment 16
As shown in figure 39, it is fixedly connected with free-form surface mirror in the middle part of the outer link of the present embodiment, one of them Free-form surface mirror be set to infrared transmitting tube surface, another free-form surface mirror be set to infrared receiving tube just on Side, the free-form surface mirror play the role of optically focused and turnover optical path simultaneously.Free-form surface mirror is in addition to carrying out light Except turnover, the effect for assembling light is also acted as.
When keycap is in relaxation state, the light that infrared transmitting tube 1651 issues, which passes through, to be located above infrared transmitting tube Free-form surface mirror 1632a carries out total reflection 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 generated in infrared receiving tube, so that trigger circuit is connected；When keycap pushes, two free-form surface mirrors are simultaneously It moves down, the collimated ray come out from the free-form surface mirror being located above infrared transmitting tube cannot be incident on positioned at infrared In free-form surface mirror above reception pipe, infrared receiving tube does not receive light, electric current cannot be generated, so as to cause circuit It disconnects.
The rest part of the present embodiment is same as Example 1, and which is not described herein again.
Embodiment 17
As shown in figure 40, plane mirror, one of plane are fixedly connected in the middle part of the outer link of the present embodiment Reflecting mirror is set to the surface of infrared transmitting tube, another plane mirror is set to the surface of infrared receiving tube, described infrared Aspherical Quasi-straight light-focusing lens are respectively equipped with right above transmitting tube and the infrared receiving tube, aspherical Quasi-straight light-focusing lens are set In the underface of plane mirror.
The reflecting surface of the plane mirror of the present embodiment is 45 degree of planes of inclination, which is coated with metallic reflective coating or Jie Matter reflectance coating.
The aspherical Quasi-straight light-focusing lens of the present embodiment raised aspherical are formed by upper and lower two.
When key is in relaxation state, the light issued from infrared transmitting tube 1751 is saturating by aspherical Quasi-straight light-focusing Mirror 1745a is collimated, and the light after collimation is incident on the plane mirror 1732a above infrared transmitting tube and carries out total reflection turnover, Light collimated incident carries out total reflection turnover again, turns to being located in the plane mirror 1732b of 1752 top of infrared receiving tube By lower section, another aspherical Quasi-straight light-focusing lens 1745b is focused in infrared receiving tube collimated ray after folding, infrared Electric current is generated in reception pipe, so that trigger circuit is connected；When button pressed, two plane mirrors move down simultaneously, from The collimated ray that side plane mirror is shot out cannot be incident in the plane mirror of the other side, cannot in infrared receiving tube Electric current is generated, so as to cause circuit disconnection.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 rest part of the present embodiment is same as Example 1, and which is not described herein again.
Embodiment 18
Plane mirror is fixedly connected in the middle part of the outer link of the present embodiment, one of plane mirror is set to red The surface of outer transmitting tube, another plane mirror are set to the surface of infrared receiving tube, the infrared transmitting tube and described Fresnel Quasi-straight light-focusing lens are respectively equipped with right above infrared receiving tube, Fresnel Quasi-straight light-focusing lens are set to plane mirror Underface.
The reflecting surface of the plane mirror of the present embodiment is 45 degree of planes of inclination, which is coated with metallic reflective coating or Jie 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 spherical surface.
When key is in relaxation state, the light issued from infrared transmitting tube is quasi- by Fresnel Quasi-straight light-focusing lens Directly, the light after collimation is incident on the plane mirror above infrared transmitting tube and carries out total reflection turnover, and light collimated incident arrives In the plane mirror above infrared receiving tube, total reflection turnover again is carried out, under the collimated ray after transferring passes through Another Fresnel Quasi-straight light-focusing lens focus of side generates electric current, to trigger electricity into infrared receiving tube in infrared receiving tube Road conducting；When button pressed, two plane mirrors move down simultaneously, the collimated light that plane mirror is shot out from side Line cannot be incident in the plane mirror of the other side, and electric current cannot be generated in infrared receiving tube, so as to cause circuit disconnection.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 rest part of the present embodiment is same as Example 1, and which is not described herein again.
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 range is protected, although explaining in detail referring to preferred embodiment to the present invention, those skilled in the art are answered Work as understanding, it can be with modification or equivalent replacement of the technical solution of the present invention are made, without departing from the reality of technical solution of the present invention Matter and range.

Claims (67)

1. a kind of ultrathin key switching structure with pressing paragraph sense, it is characterised in that: including being sequentially connected from top to bottom Keycap, pedestal and circuit board, between the keycap and the pedestal be equipped with two mutually symmetrical with swing components, two swing components Outer end be fixedly connected respectively with the keycap, the pedestal be equipped with elastic component, the inner end of two swing components respectively with the bullet Property part be fixedly connected, the outer end position of swing component is higher than the inner end position of swing component, circuit board be equipped with infrared hair Pipe and infrared receiving tube are penetrated, the keycap includes panel, and the two sides of the panel bottom are respectively equipped at least two keycap grabs；
When pressing keycap, keycap drives the outer end of two swing components to lower swing, so that two swing components is interior End is swung up, and the light of infrared transmitting tube and infrared receiving tube transmitting state is changed, and realizes circuit board Electric signal transmitting；
When unclamping keycap, the inner end of two swing components returns to original position under the rebound effect of elastic component, so that two The outer end of swing component returns to original position, finally keycap is made to return to original position.
2. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 1, it is characterised in that: institute The two sides for stating panel bottom are respectively equipped at least two keycap clips.
3. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 1, it is characterised in that: institute Stating pedestal includes bottom plate, and the position that the upper surface of the bottom plate corresponds to the keycap grab is respectively equipped with pedestal grab, a bottom Seat grab and a keycap grab correspond snapping.
4. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 3, it is characterised in that: institute The middle position for stating bottom plate is equipped with hollow-out parts.
5. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 4, it is characterised in that: institute The both ends for stating hollow-out parts are respectively provided with the clinohedral of limitation elastomer, and clinohedral and bottom plate are integrally formed.
6. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 5, it is characterised in that: institute The top for stating clinohedral offers slit for connecting elastomer.
7. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 6, it is characterised in that: institute State swing component include inboard Sinks parallel to each other, outer link and with mutually perpendicular two counter-jibs of inboard Sinks, institute It states inboard Sinks, the outer link and two counter-jibs and encloses a square box, ipsilateral keycap clip and ipsilateral outer The connection of side connecting rod.
8. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 7, it is characterised in that: institute The two sides for stating the upper surface of bottom plate are respectively equipped with swing component locating part, and the swing component locating part includes mutually perpendicular first vertical Plate and the second vertical plate, the second vertical plate are connected to the middle part of the first vertical plate, first vertical plate and second vertical plate respectively with institute The inner end for stating counter-jib abuts to realize the limit to swing component.
9. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 7, it is characterised in that: institute The two sides for stating plate upper surface are respectively equipped with two bottom plate fulcrums.
10. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 7, it is characterised in that: The two sides of the plate upper surface are opened up respectively there are two bottom plate groove.
11. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 7, it is characterised in that: The two sides of the plate upper surface are respectively equipped with two axle sleeves.
12. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 8, it is characterised in that: Connecting rod locating piece is equipped with towards the side of the outer link in the middle part of the inboard Sinks.
13. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 8, it is characterised in that: Back to setting on the side of the outer link, there are two pin locating pieces in the middle part of the inboard Sinks.
14. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 9, it is characterised in that: The bottom surface of each counter-jib is respectively equipped with counter-jib groove, and a bottom plate fulcrum correspondence is fallen into a counter-jib groove.
15. a kind of ultrathin key switching structure 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 fulcrum, and a counter-jib fulcrum correspondence is fallen into a bottom plate groove.
16. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 14 or 15, feature Be: the bottom surface in the middle part of the inboard Sinks is set there are two limited block, and one of limited block is abutted with the one side wall of hollow-out parts, Another limited block is abutted with another side wall of hollow-out parts.
17. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 11, it is characterised in that: The medial surface of the counter-jib is equipped with short axle, and a short axle connects one to one with an axle sleeve.
18. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 17, it is characterised in that: Connecting rod locating piece is equipped with towards the side of the outer link in the middle part of the inboard Sinks.
19. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 17, it is characterised in that: Back to setting on the side of the outer link, there are two pin locating pieces in the middle part of the inboard Sinks.
20. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 17, it is characterised in that: Bottom surface in the middle part of the inboard Sinks is set there are two limited block, and one of limited block is abutted with the one side wall of hollow-out parts, another A limited block is abutted with another side wall of hollow-out parts.
21. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 8, it is characterised in that: Bottom surface in the middle part of the inboard Sinks is set there are two limited block, and one of limited block is abutted with the one side wall of hollow-out parts, another A limited block is abutted with another side wall of hollow-out parts.
22. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 8, it is characterised in that: The inboard Sinks are equipped with the connecting rod gap passed through for elastic component.
23. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 22, it is characterised in that: The connecting rod gap is L-shaped.
24. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 8, it is characterised in that: It is additionally provided with gripping block between the keycap and the pedestal, is each passed through the gripping block in the middle part of two inboard Sinks.
25. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 24, it is characterised in that: The two sides of the gripping block offer gripping block gap respectively.
26. a kind of ultrathin key switching structure with pressing paragraph sense, feature described in 2 or 18 according to claim 1 Be: the elastic component includes from left to right integrally formed first curved portion, flat part and the second curved portion, the flat part It is affixed with the upper surface of inboard Sinks, the outer end of first curved portion is inserted in one of in the slit on clinohedral top, institute The outer end for stating the second curved portion is inserted into the slit on another clinohedral top.
27. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 26, it is characterised in that: It downwardly turns over to form the first engaging portion in the middle part of first curved portion inner end, the middle part of second curved portion inner end is turned over downwards Turn to form the second engaging portion, first engaging portion and a connecting rod locating piece snapping, second engaging portion and another company Bar locating piece snapping.
28. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 12, it is characterised in that: The elastic component include from left to right integrally formed first elastic force adjustment portion, the first curved portion, the second curved portion, flat part, The lower surface of third curved portion, the 4th curved portion and the second elastic force adjustment portion, the flat part and inboard Sinks is affixed, 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 is inserted into another clinohedral In the slit on top.
29. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 28, it is characterised in that: The middle part of second curved portion inner end is equipped with the first engaging portion, and the middle part of third curved portion inner end is equipped 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.
30. a kind of ultrathin key switching structure with pressing paragraph sense, feature described in 3 or 19 according to claim 1 Be: the elastic component includes from left to right integrally formed first curved portion, flat part and the second curved portion, the flat part It is affixed with the upper surface of inboard Sinks, the outer end of first curved portion is inserted in one of in the slit on clinohedral top, institute The outer end for stating the second curved portion is inserted into the slit on another clinohedral top.
31. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 30, it is characterised in that: The flat part offers through-hole, and the through-hole is equipped with pin, and two inboard Sinks connect by the way that pin and the flat part are fixed It connects.
32. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 31, it is characterised in that: The medial surface of four pin locating pieces is abutted with the pin respectively.
33. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 16, it is characterised in that: The elastic component includes from left to right integrally formed first curved portion, the second curved portion, flat part, third curved portion and the 4th The outer end of curved portion, first curved portion is inserted in one of in the slit on clinohedral top, outside the 4th curved portion End is inserted into the slit on another clinohedral top, and one of inboard Sinks are located in second curved portion and the plate Between portion, another inboard Sinks is located between the third curved portion and the flat part.
34. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 33, it is characterised in that: The longitudinal section of the assembly of second curved portion, the flat part and the third curved portion is in " I " fonts.
35. a kind of ultrathin key switching structure with pressing paragraph sense, feature according to claim 20 or 21 Be: the elastic component includes from left to right integrally formed first curved portion, the second curved portion, flat part, third curved portion It is inserted in one of in the slit on clinohedral top with the outer end of the 4th curved portion, first curved portion, the 4th arc The outer end in portion is inserted into the slit on another clinohedral top, and one of inboard Sinks are located in second curved portion and institute It states between flat part, another inboard Sinks is located between the third curved portion and the flat part.
36. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 35, it is characterised in that: The longitudinal section of the assembly of second curved portion, the flat part and the third curved portion is in " I " fonts.
37. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 23, it is characterised in that: The elastic component includes that from left to right integrally formed first curved portion, link joint feature and the second curved portion, the connecting rod connect Socket part is each passed through two connecting rod gaps, and the outer end of first curved portion is inserted in one of in the slit on clinohedral top, The outer end of second curved portion is inserted into the slit on another clinohedral top.
38. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 37, 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.
39. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 25, it is characterised in that: The elastic component includes the first arc-shaped workpiece and the second arc-shaped workpiece, and the outer end of first arc-shaped workpiece is inserted in one of in clinohedral In the slit in portion, the outer end of second arc-shaped workpiece is inserted into the slit on another clinohedral top, first arc-shaped workpiece Inner end is inserted in one of in gripping block gap, and the inner end of second arc-shaped workpiece is inserted into another gripping block gap.
40. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 21, it is characterised in that: The elastic component includes upper elastic slice and lower elastic slice, and two inboard Sinks are located in the middle part of the upper elastic slice Yu the lower elastic slice Between, the upper elastic slice is fixedly connected with the lower elastic slice.
41. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 40, it is characterised in that: The upper elastic slice includes from left to right integrally formed first curved portion, upper flat plate portion and the second curved portion, the upper flat plate portion It is affixed with the upper surface of inboard Sinks, the outer end of first curved portion is inserted in one of in the slit on clinohedral top, institute The outer end for stating the second curved portion is inserted into the slit on another clinohedral top.
42. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 41, it is characterised in that: The lower elastic slice includes from left to right integrally formed third curved portion, lower flat part and the 4th curved portion, the lower flat part It is affixed with the lower surface of inboard Sinks, the outer end of the third curved portion is inserted in one of in the slit on clinohedral top, institute The outer end for stating the 4th curved portion is inserted into the slit on another clinohedral top.
43. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 42, it is characterised in that: The first snapping mouth is offered in the middle part of first curved portion inner end, second curved portion offers the second button in the middle part of inner end Interface is flipped up to form the first engaging portion in the middle part of third curved portion inner end, the middle part of the 4th curved portion inner end It is flipped up to form the second engaging portion, first engaging portion and the first snapping mouth snapping, second engaging portion and institute State the second snapping mouth snapping.
44. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 21, it is characterised in that: The elastic component includes elastic piece and elastic tube, and two inboard Sinks are located between the elastic piece and the elastic tube, The elastic piece is fixedly connected with the elastic tube.
45. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 44, it is characterised in that: The elastic piece includes from left to right integrally formed first curved portion, flat part and the second curved portion, the flat part with it is interior The lower surface or upper surface of side connecting rod are affixed, and the outer end of first curved portion is inserted in one of the slit on clinohedral top In, the outer end of second curved portion is inserted into the slit on another clinohedral top.
46. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 45, it is characterised in that: The elastic tube is arc-shaped.
47. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 46, it is characterised in that: The first card interface is offered in the middle part of first curved portion inner end, second curved portion offers the second card in the middle part of inner end Interface, one end of the elastic tube and first card interface are clamped, the other end of the elastic tube and second card interface Clamping.
48. a kind of with pressing paragraph sense according to the claim 27,32,34,36,38,39,43 or 47 any one Ultrathin key switching structure, it is characterised in that: optical prism, one of light are fixedly connected in the middle part of the outer link The surface that prism is set to infrared transmitting tube is learned, another optical prism is set to the surface of infrared receiving tube.
49. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 48, it is characterised in that: The optical prism is freeform optics prism.
50. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 49, 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 other than light is transferred.
51. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 48, it is characterised in that: The optical prism is right-angled triangular prism, is respectively equipped with aspheric right above the infrared transmitting tube and the infrared receiving tube Face Quasi-straight light-focusing lens, aspherical Quasi-straight light-focusing lens are set to the underface of right-angled triangular prism.
52. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 51, it is characterised in that: The reflecting surface of the right-angled triangular prism is 45 degree of planes of inclination.
53. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 52, it is characterised in that: The aspherical Quasi-straight light-focusing lens raised aspherical are formed by upper and lower two.
54. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 48, it is characterised in that: The optical prism is right-angled triangular prism, is respectively equipped with Fei Nie right above the infrared transmitting tube and the infrared receiving tube That Quasi-straight light-focusing lens, Fresnel Quasi-straight light-focusing lens are set to the underface of right-angled triangular prism.
55. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 54, it is characterised in that: The reflecting surface of the right-angled triangular prism is 45 degree of planes of inclination.
56. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 55, 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 spherical surface.
57. a kind of with pressing paragraph sense according to the claim 27,32,34,36,38,39,43 or 47 any one Ultrathin key switching structure, it is characterised in that: it is fixedly connected with free-form surface mirror in the middle part of the outer link, wherein One free-form surface mirror is set to the surface of infrared transmitting tube, another free-form surface mirror is set to infrared receiving tube Surface, the free-form surface mirror play the role of optically focused and turnover optical path simultaneously.
58. a kind of with pressing paragraph sense according to the claim 27,32,34,36,38,39,43 or 47 any one Ultrathin key switching structure, it is characterised in that: it is fixedly connected with plane mirror in the middle part of the outer link, one of them Plane mirror is set to the surface of infrared transmitting tube, another plane mirror is set to the surface of infrared receiving tube, described Aspherical Quasi-straight light-focusing lens are respectively equipped with right above infrared transmitting tube and the infrared receiving tube, aspherical Quasi-straight light-focusing is saturating Mirror is set to the underface of plane mirror.
59. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 58, it is characterised in that: The reflecting surface of the plane mirror is 45 degree of planes of inclination, which is coated with metallic reflective coating or dielectric reflection film.
60. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 59, it is characterised in that: The aspherical Quasi-straight light-focusing lens raised aspherical are formed by upper and lower two.
61. a kind of with pressing paragraph sense according to the claim 27,32,34,36,38,39,43 or 47 any one Ultrathin key switching structure, it is characterised in that: it is fixedly connected with plane mirror in the middle part of the outer link, one of them Plane mirror is set to the surface of infrared transmitting tube, another plane mirror is set to the surface of infrared receiving tube, described Fresnel Quasi-straight light-focusing lens are respectively equipped with right above infrared transmitting tube and the infrared receiving tube, Fresnel Quasi-straight light-focusing is saturating Mirror is set to the underface of plane mirror.
62. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 61, it is characterised in that: The reflecting surface of the plane mirror is 45 degree of planes of inclination, which is coated with metallic reflective coating or dielectric reflection film.
63. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 62, 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 spherical surface.
64. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 29, it is characterised in that: The infrared transmitting tube is the luminous infrared transmitting tube in side, and the infrared receiving tube is to flank receipts infrared receiving tube, the infrared hair Pipe is penetrated to be oppositely arranged with the infrared receiving tube.
65. a kind of according to claim 50,53,56,60 or 63 any one press with the ultrathin type for pressing paragraph sense 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.
66. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 57, 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.
67. a kind of ultrathin key switching structure with pressing paragraph sense according to claim 50, it is characterised in that: Keycap character illumination LED is additionally provided on the circuit board.
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JP3760739B2 (en) * 2000-09-05 2006-03-29 ブラザー工業株式会社 Key switch device, keyboard with key switch device, and electronic device with keyboard
TW461571U (en) * 2000-12-18 2001-10-21 Behavior Tech Computer Corp Keyboard switch having sectional touch feeling
KR100487212B1 (en) * 2002-05-15 2005-05-03 한국에스엠케이 주식회사 Key switch
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