CN105118714B - A kind of ultrathin type optical reflection type has the input equipment switch module of dentalation - Google Patents
A kind of ultrathin type optical reflection type has the input equipment switch module of dentalation Download PDFInfo
- Publication number
- CN105118714B CN105118714B CN201510409020.9A CN201510409020A CN105118714B CN 105118714 B CN105118714 B CN 105118714B CN 201510409020 A CN201510409020 A CN 201510409020A CN 105118714 B CN105118714 B CN 105118714B
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- Prior art keywords
- keycap
- gear
- rack
- light
- cam
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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
- H01H13/02—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/12—Movable parts; Contacts mounted thereon
- H01H13/20—Driving mechanisms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2231/00—Applications
- H01H2231/002—Calculator, computer
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2239/00—Miscellaneous
- H01H2239/022—Miscellaneous with opto-electronic switch
Landscapes
- Switches Operated By Changes In Physical Conditions (AREA)
- Push-Button Switches (AREA)
Abstract
The invention discloses a kind of ultrathin optical reflection types, and there is the input equipment of dentalation to switch module, including keycap, key axis, spring, upper set casing, lower set casing, pcb board, the super thin reflective PKB photoelectric keyboard switch module further includes a light emitting devices and a light receiving element, path channels are formed between light emitting devices and light receiving element, the path channels include a light path switch, the light path switch includes the rack being located at below keycap, gear on pcb board or cam, by pressing the keycap, so that the underlying rack moves up and down to drive the gear or cam to make radial rotary motion, realize the conducting and disconnection of the path channels.This ultrathin type optical reflection type have the characteristics that dentalation input equipment switch module have it is simple in structure, at low cost, easy to assembly, switch module height it is low, height only has the 1/3~1/4 of tradition machinery axle key disk.
Description
Technical field
The present invention relates to the technical field of electronic device input equipment, more particularly to a kind of ultrathin optical reflection type has
The input equipment of dentalation switchs module.
Background technology
Mechanical keyboard is the mainstream in current computor-keyboard market, and operation principle is that keyboard bottom possesses a circuit
Plate fixes a mechanical axis more than 100 on plate, and each axis is independent switch, signal will be made by circuit by pushing mechanical axis
Plate is conducted to computer.The superior of mechanical keyboard is quick on the draw and feel is preferable, while being suitble to office personage and game
The needs of player.But the shortcomings that purely mechanic axis keyboard switch, concluding several points is：First, purely mechanic axis switch is with hard contact formula
Shrapnel makees the conducting and disconnection that circuit is realized in contact with non-contact action, and this mechanical contact structure easy tos produce fatigability damage
Evil, shrapnel contact point is easy to wear, falls short of to switch control failure or malfunction control, life of product occur；Second, golden
Belong to shrapnel and contact is easy to be influenced to cause oxidation and aging by use environment, causes conducting contact bad, switch control is caused to lose
Effect or malfunction control；Third, the welding foot of purely mechanic axis construction of switch is in-line structure, need manual plug-in unit to PCB (prints
Printed circuit board) on, it then welds again and cutting, it is not in place to be susceptible to plug-in unit during welding production, causes repair of doing over again
Etc. processes, production operation tedious process be not suitable for automation plug-in unit production, occupy artificial high, low production efficiency and manufacturing cost
It is high；Fourth, the keycap cap character lighting system of this purely mechanic axis construction of switch uses direct insertion LED, it is equally also required to a large amount of people
Work carries out manual plug-in unit to PCB, then welds again and cutting, production operation tedious process, unsuitable automation plug-in unit produce, material
Expect of high cost, low production efficiency and manufacturing cost height.
Photoelectric key board is emerging keyboard in recent years, it is added completely new on traditional mechanical key axis technical foundation
Optoelectronic induction identification technology is optical sensor component by replacing traditional contact plectrum, improves conventional contact mechanical switch
Some problems.It utilizes optical principle and photoelectric coupling technology, and the access of light, light blocking are formed by light-emitting component and photo detector
Part priming photo-coupler in the cut-out and closing course for carrying out light path, changes the break-make that circuit resistance value completes circuit, to
It realizes electric --- light --- electric conversion, and then controls disconnection and the access of switch, and photoelectricity is mutually separated by between input and output
From.
The advantages of photoelectric key board is：Control is accurate, switching action faster, high sensitivity, feeling is better, Bu Huishou
The influence of contact wear and deterioration by oxidation, service life is long, can meet high-frequency and prolonged application；And there is no machineries
The jitter problem of contact, odds and ends news, the zero-lag of switch motion time operate sensitiveer, quick and accurate etc..But due to photo-electric
The keyboard prior art is from original traditional mechanical keyboard switch module succession, and height of keycap is relatively high, volume ratio
It is larger, it is relatively specific for desk-top input equipment, is not suitable for being integrated on laptop and miniature portable digital equipment.
Invention content
The shortcomings that it is an object of the invention to overcome the prior art with it is insufficient, providing a kind of ultrathin optical reflection type has
The input equipment of dentalation switchs module.
The purpose of the invention is achieved by the following technical solution：
A kind of ultrathin type optical reflection type has the input equipment switch module of dentalation, including keycap, key axis, bullet
Spring, upper set casing, lower set casing, pcb board, which is characterized in that the super thin reflective PKB photoelectric keyboard switchs module and further includes
One light emitting devices and a light receiving element, form path channels, the light between light emitting devices and light receiving element
Paths include a light path switch, the light path switch include be located at keycap below rack, the gear on pcb board or
Person's cam, by pressing the keycap so that the underlying rack moves up and down to drive the gear or cam
Make radial rotary motion, realizes the conducting and disconnection of the path channels.
Further, the light emitting devices and/or light receiving element are to be horizontally placed on the pcb board, Huo Zhesuo
It states light emitting devices and/or light receiving element is vertically arranged on the pcb board or on upper set casing.
Further, the light emitting devices and light receiving element are to be horizontally placed on the pcb board, described lower solid
Determine to be provided with first through hole and the second through-hole on shell, and the first through hole is located above the light emitting devices, described second
Through-hole is located above the light receiving element.
Further, the path channels include the first refractive prism being located on lower set casing first through hole position, position
In on the second lead to the hole site of lower set casing the second refractive prism, by below the keycap rack and be located at the PCB
The light path switch of gear composition on plate.
Further, when the keycap pull-off spring is returned in situ, the keycap drives the rack being disposed below
Move up, so with moving gear rotate, the third through-hole opened up on gear at this time be staggered completely first refractive prism and
Path channels between second refractive prism, path channels are cut off by the gear, and light receiving element is unable to trigger current, therewith
Connected circuit is off；
When the keycap pushes, the keycap drives the rack being disposed below to move down, and then is revolved with moving gear
Turn, when the keycap presses to most bottom, the center of the third through-hole opened up on gear just rotates to first folding
The position of optical path Center Z axis between light prism and the second refractive prism, the light sent out from the light emitting devices pass through it
First refractive prism of top collimate and turnover after, from it on the right of output end face output, collimated ray is placed through
Third through-hole on gear is incident in the second refractive prism of the other side, after its turnover and assembling, is focused below
The light receiving element on, to trigger generation electric current, the circuit being attached thereto is in the conduction state.
Further, the light emitting devices is vertically arranged on the pcb board or fixed shell；
The light receiving element is to be horizontally placed on the pcb board, and the second through-hole is provided on the lower set casing, and
Second through-hole is located above the light receiving element.
Further, the path channels include being set to the pcb board or fixed shell using vertical mode
On collimation Fresnel Lenses, the second refractive prism on the second lead to the hole site of lower set casing, by being located under the keycap
The light path switch of the rack of side and the gear composition on the pcb board.
Further, when the keycap pull-off spring is returned in situ, the keycap drives the rack being disposed below
It moves up, and then is rotated with moving gear, the third through-hole opened up on gear at this time is staggered the collimation Fresnel Lenses completely
And the second path channels between refractive prism, path channels are cut off by the gear, light receiving element is unable to trigger current, with
Connected circuit be off；
When the keycap pushes, the keycap drives the rack being disposed below to move down, and then is revolved with moving gear
Turn, when the keycap presses to most bottom, the center of the third through-hole opened up on gear just rotates to the collimation phenanthrene
The position of optical path Center Z axis between Nie Er lens and the second refractive prism, the light sent out from the light emitting devices pass through
After collimation Fresnel Lenses collimation on the right side of it, from it on the right of output end face output, collimated ray is placed through tooth
Third through-hole on wheel is incident in the second refractive prism of the other side, after its turnover and assembling, is focused below
On the light receiving element, to trigger generation electric current, the circuit being attached thereto is in the conduction state.
Further, the light emitting devices and/or the light receiving element be vertically arranged in the pcb board and/or
On the fixed shell of person；
Further, the path channels include being set to the pcb board or fixed shell using vertical mode
On collimation Fresnel Lenses, the light path that is made of the rack below the keycap and the gear on the pcb board
Switch.
Further, when the keycap pull-off spring is returned in situ, the keycap drives the rack being disposed below
It moves up, and then is rotated with moving gear, the third through-hole opened up on gear at this time is staggered the collimation Fresnel Lenses completely
And the path channels between light receiving element, path channels are cut off by the gear, light receiving element is unable to trigger current, therewith
Connected circuit is off；
When the keycap pushes, the keycap drives the rack being disposed below to move down, and then is revolved with moving gear
Turn, when the keycap presses to most bottom, the center of the third through-hole opened up on gear just rotates to the collimation phenanthrene
The position of optical path Center Z axis between Nie Er lens and light receiving element, the light sent out from the light emitting devices pass through it
After the collimation Fresnel Lenses collimation on right side, from it on the right of output end face output, collimated ray is placed through gear
On third through-hole, be incident on the light receiving element of the other side, to trigger generation electric current, at the circuit being attached thereto
In conducting state.
Further, the path channels include the 4th refractive prism being located on lower set casing first through hole position, position
In on the second lead to the hole site of lower set casing the 5th refractive prism, by below the keycap rack and be located at the PCB
The light path switch of cam composition on plate, wherein the cam is gear structure close to the side of the rack, with the tooth
Item is meshed, and the side far from the rack is baffle, and the gear structure is connected with the baffle by connecting rod, the baffle
Lower section open up there are one groove, which can be rotated for being directed at or cutting off light path around camshaft.
Further, when the keycap pull-off spring is returned in situ, the keycap drives the rack being disposed below
It moves up, and then is rotated with moving cam, the groove opened up below the baffle of cam at this time is staggered the 4th refractive power rib completely
Path channels between mirror and the 5th refractive prism, path channels are cut off by the gear, and light receiving element is unable to trigger current,
The circuit being attached thereto is off；
When the keycap pushes, the keycap drives the rack being disposed below to move down, and then is revolved with moving cam
Turn, when the keycap presses to most bottom, the center of the groove opened up below the baffle of cam just rotates to described the
The position of optical path Center Z axis between four refractive prisms and the 5th refractive prism, the light warp sent out from the light emitting devices
Cross after the 4th refractive prism collimation and turnover above it, from it on the right of output end face output, collimated ray passes through
The groove opened up below the baffle of cam, is incident in the 5th refractive prism of the other side, after its turnover and assembling,
It focuses on the light receiving element below, to trigger generation electric current, the circuit being attached thereto is in the conduction state.
Further, the path channels include being set to the pcb board or fixed shell using vertical mode
On collimation Fresnel Lenses, the 6th refractive prism on the second lead to the hole site of lower set casing, by being located under the keycap
The light path switch of the rack of side and the cam composition on the pcb board, wherein the cam is close to the side of the rack
It for gear structure, is meshed with the rack, the side far from the rack is baffle, the gear structure and the baffle
It is connected, is opened up below the baffle there are one groove by connecting rod, which, can be around for being directed at or cutting off light path
Camshaft is rotated.
Further, when the keycap pull-off spring is returned in situ, the keycap drives the rack being disposed below
It moves up, and then is rotated with moving cam, the groove opened up below the baffle of cam at this time is staggered the collimation Fresnel completely
Path channels between lens and the 6th refractive prism, path channels are cut off by the gear, and light receiving element cannot trigger electricity
Stream, the circuit being attached thereto are off；
When the keycap pushes, the keycap drives the rack being disposed below to move down, and then is revolved with moving cam
Turn, when the keycap presses to most bottom, the center of the groove opened up below the baffle of cam just rotates to the standard
The directly position of the optical path Center Z axis between Fresnel Lenses and the 6th refractive prism, the light sent out from the light emitting devices
By on the right side of it the collimation Fresnel Lenses collimation after, from it on the right of output end face output, collimated ray pass through position
The groove opened up below the baffle of cam, is incident in the 6th refractive prism of the other side, after its turnover and assembling, gathers
On coke to the light receiving element below, to trigger generation electric current, the circuit being attached thereto is in the conduction state.
Further, the path channels include being set to the pcb board or fixed shell using vertical mode
On collimation Fresnel Lenses, the light path that is made of the rack below the keycap and the cam on the pcb board
Switch is meshed wherein the cam is gear structure close to the side of the rack with the rack, far from the rack
Side be baffle, the gear structure connected with the baffle by connecting rod, is opened up below the baffle there are one groove,
The groove can be rotated for being directed at or cutting off light path around camshaft.
Further, when the keycap pull-off spring is returned in situ, the keycap drives the rack being disposed below
It moves up, and then is rotated with moving cam, the groove opened up below the baffle of cam at this time is staggered the collimation Fresnel completely
Path channels between lens and light receiving element, path channels are cut off by the gear, and light receiving element is unable to trigger current,
The circuit being attached thereto is off；
When the keycap pushes, the keycap drives the rack being disposed below to move down, and then is revolved with moving cam
Turn, when the keycap presses to most bottom, the center of the groove opened up below the baffle of cam just rotates to the standard
The directly position of the optical path Center Z axis between Fresnel Lenses and light receiving element, the light warp sent out from the light emitting devices
Cross after the collimation Fresnel Lenses collimation on the right side of it, from it on the right of output end face output, collimated ray is placed through
The groove opened up below the baffle of cam, is incident on the light receiving element, to trigger generation electric current, the electricity being attached thereto
Road is in the conduction state.
Further, the light emitting devices is SMD IR infrared diodes or laser diode, the optical receiver
Part is SMD PT pipes.
Further, the lower section of the refractive prism is for collimating or the Fresnel surface of optically focused, and top is inclined
Reflecting surface；The reflecting surface is the free form surface of off axis paraboloid mirror, off-axis 2 curved surfaces or polynomial surface, may be
Tilt pure-surface, or the compound curved surface for multiple faces composition；The reflecting surface is high reflectance surface, and reflectance factor is more than
80%, it is bright silver or is bright gold color, or high reflectance white or light reflection coating.
Further, the light emitting devices, the light receiving element or the collimation Fresnel Lenses pass through buckle
Mode be fixed on the pcb board or fixed shell.
The present invention has the following advantages and effects with respect to the prior art：
1) PKB photoelectric keyboard of super thin reflective disclosed by the invention is opened the light module, and with structure, simpler, cost is more
Low, assembling more aspect switchs the features such as module height is low, and height only has the 1/3~1/4 of tradition machinery axle key disk, relatively more suitable
It shares in keyboard for computer, palm formula tablet mobile device, computer mouse device and numerically-controlled machine tool input equipment.
2) PKB photoelectric keyboard of super thin reflective disclosed by the invention is opened the light module, using pure photoelectric device control switch
Disconnection and access are not necessarily to mechanical hard contact, and switch life can reach 100,000,000 times, and tradition machinery axis metal will not occur
Contact flat spring fatigability wears and aoxidizes the quality problems such as long verdigris.
3) SMD IR pipes (surface-pasted infrared diode) and SMD PT pipes (surface-pasted photoelectric sensor) are used
Full-automatic attachment and welding may be used in integral structure, SMD packaged types, and artificial and welding cost, welding is greatly reduced
Registration improves production efficiency and quality stability.
4) SMD LED (surface-pasted light emitting diode) are used to realize keycap cap character illumination light-emitting.Due to SMD LED
Full-automatic attachment and welding equally may be used, cost of labor, cost of parts and welding cost can be greatly reduced, weld
Accurate positioning improves production efficiency and quality stability, without using the direct insertion LED of the prior art.
Description of the drawings
Fig. 1 be super thin reflective disclosed in the present embodiment 1 have dentalation PKB photoelectric keyboard switch module etc.
Axis side decomposition chart；
Fig. 2, which is super thin reflective disclosed in the present embodiment 1, has the PKB photoelectric keyboard switch module of dentalation just
Depending on decomposition chart；
Fig. 3 (a) is the PKB photoelectric keyboard switch module key that super thin reflective disclosed in the present embodiment 1 has dentalation
Its sectional view along gear side surface direction in the state that cap loosens；
Fig. 3 (b) is the PKB photoelectric keyboard switch module key that super thin reflective disclosed in the present embodiment 1 has dentalation
The sectional view in its direction G along Fig. 3 (a) in the state that cap loosens；
Fig. 3 (c) is the PKB photoelectric keyboard switch module key that super thin reflective disclosed in the present embodiment 1 has dentalation
Its sectional view along gear side surface direction in the state that cap pushes；
Fig. 3 (d) is the PKB photoelectric keyboard switch module key that super thin reflective disclosed in the present embodiment 1 has dentalation
The sectional view in its direction G along Fig. 3 (c) in the state that cap pushes；
Fig. 4 (a) is the PKB photoelectric keyboard switch module key that super thin reflective disclosed in the present embodiment 2 has dentalation
Its sectional view along gear side surface direction in the state that cap loosens；
Fig. 4 (b) is the PKB photoelectric keyboard switch module key that super thin reflective disclosed in the present embodiment 2 has dentalation
The sectional view in its direction G along Fig. 4 (a) in the state that cap loosens；
Fig. 4 (c) is the PKB photoelectric keyboard switch module key that super thin reflective disclosed in the present embodiment 2 has dentalation
Its sectional view along gear side surface direction in the state that cap pushes；
Fig. 4 (d) is the PKB photoelectric keyboard switch module key that super thin reflective disclosed in the present embodiment 2 has dentalation
The sectional view in its direction G along Fig. 4 (c) in the state that cap pushes；
Fig. 5 (a) is the PKB photoelectric keyboard switch module key that super thin reflective disclosed in the present embodiment 3 has dentalation
Its sectional view along flank of cam direction in the state that cap loosens；
Fig. 5 (b) is the PKB photoelectric keyboard switch module key that super thin reflective disclosed in the present embodiment 3 has dentalation
The sectional view in its direction G along Fig. 5 (a) in the state that cap loosens；
Fig. 5 (c) is the PKB photoelectric keyboard switch module key that super thin reflective disclosed in the present embodiment 3 has dentalation
Its sectional view along flank of cam direction in the state that cap pushes；
Fig. 5 (d) is the PKB photoelectric keyboard switch module key that super thin reflective disclosed in the present embodiment 3 has dentalation
The sectional view in its direction G along Fig. 5 (c) in the state that cap pushes；
Fig. 6 (a) is the PKB photoelectric keyboard switch module key that super thin reflective disclosed in the present embodiment 4 has dentalation
Its sectional view along flank of cam direction in the state that cap loosens；
Fig. 6 (b) is the PKB photoelectric keyboard switch module key that super thin reflective disclosed in the present embodiment 4 has dentalation
The sectional view in its direction G along Fig. 6 (a) in the state that cap loosens；
Fig. 6 (c) is the PKB photoelectric keyboard switch module key that super thin reflective disclosed in the present embodiment 4 has dentalation
Its sectional view along flank of cam direction in the state that cap pushes；
Fig. 6 (d) is the PKB photoelectric keyboard switch module key that super thin reflective disclosed in the present embodiment 4 has dentalation
The sectional view in its direction G along Fig. 6 (c) in the state that cap pushes；
Fig. 7 (a) is the PKB photoelectric keyboard switch module key that super thin reflective disclosed in the present embodiment 5 has dentalation
Its sectional view along flank of cam direction in the state that cap loosens；
Fig. 7 (b) is the PKB photoelectric keyboard switch module key that super thin reflective disclosed in the present embodiment 5 has dentalation
The sectional view in its direction G along Fig. 7 (a) in the state that cap loosens；
Fig. 7 (c) is the PKB photoelectric keyboard switch module key that super thin reflective disclosed in the present embodiment 5 has dentalation
Its sectional view along flank of cam direction in the state that cap pushes；
Fig. 7 (d) is the PKB photoelectric keyboard switch module key that super thin reflective disclosed in the present embodiment 5 has dentalation
The sectional view in its direction G along Fig. 7 (c) in the state that cap pushes；
Fig. 8 (a) is the PKB photoelectric keyboard switch module key that super thin reflective disclosed in the present embodiment 5 has dentalation
Its sectional view along flank of cam direction in the state that cap loosens；
Fig. 8 (b) is the PKB photoelectric keyboard switch module key that super thin reflective disclosed in the present embodiment 5 has dentalation
The sectional view in its direction G along Fig. 7 (a) in the state that cap loosens；
Fig. 8 (c) is the PKB photoelectric keyboard switch module key that super thin reflective disclosed in the present embodiment 5 has dentalation
Its sectional view along flank of cam direction in the state that cap pushes；
Fig. 8 (d) is the PKB photoelectric keyboard switch module key that super thin reflective disclosed in the present embodiment 5 has dentalation
The sectional view in its direction G along Fig. 7 (c) in the state that cap pushes；
Specific implementation mode
For make the technical means, the creative features, the aims and the efficiencies achieved by the present invention be easy to understand referring to
Attached drawing develops simultaneously, and the present invention is described in more detail for embodiment.It should be appreciated that specific embodiment described herein is only used to
It explains the present invention, is not intended to limit the present invention.
Embodiment one
There is a kind of super thin reflective according to the present invention the PKB photoelectric keyboard of dentalation to switch module, specific real
Apply the isometric side decomposition chart of example one as shown in Figure 1, exploded front structure chart as shown in Fig. 2, its by keycap 11, key axis 12,
Spring 13, upper set casing 14, lower set casing 15, pcb board (printed circuit board) 16 bottom, 17 (Surface of SMD IR pipes
Mounted Devices Infrared Radiation, surface mount infrared diode or infra-red laser diode), SMD
PT pipes 18 (the surface-pasted phototriodes of Surface Mounted Devices Phototransistor) form.It is described
SMD IR pipes 17, be the present embodiment in light emitting devices.The SMD PT pipes 18 are optical receiver in the present embodiment
Part.
The light emitting devices or light receiving element, is horizontally or vertically fixed on pcb board by the way of buckle
On 16.
When the light emitting devices is horizontally fixed on pcb board 16, the lower set casing 15, close to optical transmitting set
There are one first through hole 15-1 above part (SMD IR pipes 17)；
When the light receiving element is horizontally fixed on pcb board 16,15 other side of lower set casing connects by dipped beam
Receiving above device (SMD PT pipes 18) has another second through-hole 15-2.
There is a kind of ultrathin optical reflection type involved by the present embodiment the PKB photoelectric keyboard of dentalation to switch module, light
Path channels are formed between ballistic device and light receiving element, which can be by light path switch and free form surface
The second refractive prism 15-2 compositions of first refractive prism 15-1, free form surface.
Above-mentioned light path switch includes being located at the rack below keycap, gear or cam on pcb board.Pass through pressing
The keycap so that the underlying rack moves up and down to be transported with driving the gear or cam to make radial rotation
It is dynamic, realize the conducting and disconnection of the path channels.Wherein, gear is plate-like, and the structure feature of cam is：Close to the one of rack
Side has dentalation, the side far from rack to have baffle, centre to be connected by connecting rod.The gear of plate-like is used in the present embodiment.
Shown in switch control principle such as Fig. 3 (a)-(d) of the specific embodiment of the present embodiment.Fig. 3 (a), Fig. 3 (b) are
State when keycap loosens, spring-return is to original position.Fig. 3 (a) be along gear side surface direction sectional view, Fig. 3 (b) be along
The view in the directions G in upper figure.Its light path switch is by the rack 11-1 below keycap, the gear 16-1 that is fixed on pcb board
It forms, is opened on gear 16-1 there are one third through-hole 16-12, which, can be around gear for being directed at or cutting off light path
Axis 16-11 is rotated.When keycap loosens, spring-return is to original position, keycap cap 11 is moved up with carry-over bar 11-1, into one
Step band moving gear 16-1 rotations, when keycap cap 11 is moved to resting position, the third through-hole 16-12 on gear 16-1 is completely wrong
The path channels between the first refractive prism 15-1 of free form surface and the second refractive prism 15-2 of free form surface have been opened, have been caused
Light path between first refractive prism 15-1 of free form surface and the second refractive prism 15-2 of free form surface is by gear entity institute
It cuts off, is unable to trigger current in SMD PT pipes 18, the circuit being attached thereto is off.First refractive prism
15-1 and the second refractive prism 15-2, below for for collimating or the Fresnel surface of optically focused, top is inclined total reflection
Face, output and input end face be mutually aligned, between light path every a gear 16-1, from the right side of the first refractive prism 15-1
For side output end face to the left side input end face of the second refractive prism 15-2, optical path Center axis is Z axis.Fig. 3 (c), Fig. 3 (d) are
The state that keycap pushes.Fig. 3 (c) is the sectional view along gear side surface direction, and Fig. 3 (d) is to be regarded along the directions G in upper figure
Figure.When keycap pushes, keycap cap 11 is moved down with carry-over bar 11-1, gear 16-1 rotations is further driven to, when under keycap
When being depressed into most bottom, the center of the first gear through-hole 16-12 on gear 16-1 just rotates to the first refractive power rib of free form surface
The position of optical path Center Z axis between mirror 15-1 and the second refractive prism 15-2 of free form surface.It is sent out from SMD IR pipes 17
Light by above it the first refractive prism 15-1 collimations and turnover after, from it on the right of output end face output, collimated light
Line is placed through the first gear through-hole 16-12 on gear 16-1, is incident on the second refractive prism of the free form surface of the other side
In 15-2, after its turnover and assembling, focuses on SMD PT pipes 18 below, generated to trigger in SMD PT pipes 18
Electric current, the circuit being attached thereto are in the conduction state.
The lower section of above-mentioned refractive prism is for collimating or the Fresnel surface of optically focused, and top is inclined reflecting surface；Institute
The free form surface that reflecting surface is off axis paraboloid mirror, off-axis 2 curved surfaces or polynomial surface is stated, may be that inclination is pure flat
Face, or the compound curved surface for multiple faces composition；Above-mentioned reflecting surface is high reflectance surface, and reflectance factor is more than 80%, is
Bright silver is bright gold color, or high reflectance white or light reflection coating.
Embodiment two
There is a kind of ultrathin optical reflection type involved by the present embodiment the PKB photoelectric keyboard of dentalation to switch module, light
Path channels are formed between ballistic device and light receiving element, which can be by light path switch and collimation Fresnel
The second refractive prism composition of lens, free form surface.
The light emitting devices (SMD IR pipes 17) and collimation Fresnel Lenses can by the way of placing vertically
To be fixed on the pcb board 26 or upper set casing of module bottom with buckle.
The light receiving element (SMD PT pipes 18) is horizontally fixed on pcb board 26, and the lower set casing 25 leans on dipped beam
There is the second through-hole above receiving device (SMD PT pipes 18).
Above-mentioned light path switch includes being located at the rack below keycap, gear or cam on pcb board.Pass through pressing
The keycap so that the underlying rack moves up and down to be transported with driving the gear or cam to make radial rotation
It is dynamic, realize the conducting and disconnection of the path channels.Wherein, gear is plate-like, and the structure feature of cam is：Close to the one of rack
Side has dentalation, the side far from rack to have baffle, centre to be connected by connecting rod.The gear of plate-like is used in the present embodiment.
Shown in switch control principle such as Fig. 4 (a)-(d) of the specific embodiment of the present embodiment.Fig. 4 (a), Fig. 4 (b) are
State when keycap loosens, spring-return is to original position.Fig. 4 (a) be along gear side surface direction sectional view, Fig. 4 (b) be along
The view in the directions G in upper figure.It can be seen that opened on gear 26-1 there are one third through-hole 26-12, the through-hole for being aligned or
Light path is cut off, can be rotated around gear shaft 26-11.
When keycap loosens, spring-return is to original position, keycap cap 21 is moved up with carry-over bar 21-1, is further driven to tooth
26-1 rotations are taken turns, when keycap cap 21 is moved to resting position, the third through-hole 26-12 on gear 26-1 has been staggered collimation completely
Path channels between Fresnel Lenses 24-1 and the third refractive prism 25-2 of free form surface cause to collimate Fresnel Lenses
Light path between 24-1 and the third refractive prism 25-2 of free form surface is cut off by gear entity, cannot be touched in SMD PT pipes 18
Power generation stream, the circuit being attached thereto are off.The third refractive prism 25-2 of the free form surface, below for
Carry out the Fresnel surface of optically focused, top is inclined fully reflecting surface, left side input end face and the collimation for being located at the gear other side
Output end face on the right of Fresnel Lenses 24-1 is mutually aligned, be spaced a gear 26-1, from collimation Fresnel Lenses 24-
For 1 the right output end face to the left side input end face of the second refractive prism 25-2 of free form surface, optical path Center axis is Z axis.
Fig. 4 (c), Fig. 4 (d) be keycap push, the states of conducting light paths.Fig. 4 (c) is the sectional view along gear side surface direction, Fig. 4
(d) for along the view in the directions G in Fig. 4 (c).When keycap pushes, keycap cap 21 is moved down with carry-over bar 21-1, further
The 26-1 rotations of band moving gear, when keycap presses to most bottom, the center of the third through-hole 26-12 on gear 26-1 just rotates to
Collimate the position of the optical path Center Z axis between Fresnel Lenses 24-1 and the third refractive prism 25-2 of free form surface.From vertical
The light that the SMD IR pipes 17 of placement are sent out after the collimation Fresnel Lenses 244-1 collimations on the right side of it, from it on the right of
Output end face exports, and collimated ray is placed through the third through-hole 26-12 on gear 26-1, is incident on the free form surface of the other side
Third refractive prism 25-2 in, through its turnover and assemble after, focus on SMD PT pipes 18 below, to trigger
Electric current is generated in SMD PT pipes 18, the circuit being attached thereto is in the conduction state.
The lower section of above-mentioned refractive prism is for collimating or the Fresnel surface of optically focused, and top is inclined reflecting surface；Institute
The free form surface that reflecting surface is off axis paraboloid mirror, off-axis 2 curved surfaces or polynomial surface is stated, may be that inclination is pure flat
Face, or the compound curved surface for multiple faces composition；Above-mentioned reflecting surface is high reflectance surface, and reflectance factor is more than 80%, is
Bright silver is bright gold color, or high reflectance white or light reflection coating.
Embodiment three
There is a kind of ultrathin optical reflection type involved by the present embodiment the PKB photoelectric keyboard of dentalation to switch module, light
Path channels are formed between ballistic device and light receiving element, which can be by light path switch and collimation Fresnel
Lens form.
The light emitting devices (SMD IR pipes 17) and collimation Fresnel Lenses, light receiving element (SMD PT pipes 18),
By the way of placing vertically, it can be fixed on the pcb board 36 or upper set casing 35 of module bottom with buckle.
Above-mentioned light path switch includes being located at the rack below keycap, gear or cam on pcb board.Pass through pressing
The keycap so that the underlying rack moves up and down to be transported with driving the gear or cam to make radial rotation
It is dynamic, realize the conducting and disconnection of the path channels.Wherein, gear is plate-like, and the structure feature of cam is：Close to the one of rack
Side has dentalation, the side far from rack to have baffle, centre to be connected by connecting rod.The gear of plate-like is used in the present embodiment.
Shown in switch control principle such as Fig. 5 (a)-(d) of the specific embodiment of the present embodiment.Fig. 5 (a), Fig. 5 (b) are
State when keycap loosens, spring-return is to original position.Fig. 5 (a) be along gear side surface direction sectional view, Fig. 5 (b) be along
The view in the directions G in upper figure.It can be seen that opened on gear 36-1 there are one third through-hole 36-12, the through-hole for being aligned or
Light path is cut off, can be rotated around gear shaft 36-11.
When keycap loosens, spring-return is to original position, keycap cap 31 is moved up with carry-over bar 31-1, is further driven to tooth
36-1 rotations are taken turns, when keycap cap 31 is moved to resting position, the third through-hole 36-12 on gear 36-1 has been staggered collimation completely
Path channels between Fresnel Lenses 34-1 and light receiving element (SMD PT pipes 18), cause collimate Fresnel Lenses 34-1 and
Light path between light receiving element (SMD PT pipes 18) is cut off by gear entity, cannot in light receiving element (SMD PT pipes 18)
Trigger current, the circuit being attached thereto are off.The collimation Fresnel Lenses 34-1, on the right of output end face
Aligned with the light receiving element (SMD PT pipes 18) placed vertically positioned at the gear other side, be spaced a gear 36-
1, the light receiving element (SMD PT pipes 18) placed from the right output end face of collimation Fresnel Lenses 34-1 to right vertical,
Between optical path Center axis be Z axis.Fig. 5 (c), Fig. 5 (d) be keycap push, the states of conducting light paths.Wherein Fig. 5 (c) be along
The sectional view of gear side surface direction, Fig. 5 (d) are the view along the directions G in upper figure.When keycap pushes, keycap cap 31 drives
Rack 31-1 is moved down, and is further driven to gear 36-1 rotations, when keycap presses to most bottom, the through-hole on gear 36-1
The center of 36-12 just rotates to the light receiving element (SMD PT pipes 18) that collimation Fresnel Lenses 34-1 and right vertical are placed
Between optical path Center Z axis position.The light sent out from the light emitting devices (SMD IR pipes 17) placed vertically is right by it
After the collimation Fresnel Lenses 34-1 collimation on side, from it on the right of output end face output, collimated ray is placed through gear
Through-hole 36-12 on 256-1 is directly incident on the light receiving element (SMD PT pipes 18) of its right, to trigger light-receiving
Electric current is generated in device (SMD PT pipes 18), the circuit being attached thereto is in the conduction state.
Example IV
There is a kind of ultrathin optical reflection type involved by the present embodiment the PKB photoelectric keyboard of dentalation to switch module, light
Path channels are formed between ballistic device and light receiving element, which can be by light path switch and free form surface
The 5th refractive prism composition of 4th refractive prism, free form surface.
The light emitting devices or light receiving element, is horizontally fixed on by the way of buckle on pcb board 16.It is described
Lower set casing 15 there are one first through hole 15-1 above the light emitting devices (SMD IR pipes 17)；The lower set casing 15
There is another second through-hole 15-2 in the other side above light receiving element (SMD PT pipes 18).
Above-mentioned light path switch includes being located at the rack below keycap, the cam on pcb board.By pressing the key
Cap so that the underlying rack moves up and down to drive the cam to make radial rotary motion, realizes the light path
The conducting and disconnection in channel.Wherein, the structure feature of cam is：There are dentalation, one far from rack close to the side of rack
Side has baffle, centre to be connected by connecting rod.The light path switch structure constituted using cam in the present embodiment.
Shown in switch control principle such as Fig. 6 (a)-Fig. 6 (d) of the specific embodiment of the present embodiment.Fig. 6 (a), Fig. 6 (b)
Loosen for keycap, spring-return to original position when state.Fig. 6 (a) is the sectional view along flank of cam direction, and Fig. 6 (b) is edge
The view in the directions G in upper figure.Its as shown in the figure optical switch by below keycap rack 41-1, be fixed on pcb board
Cam 46-1 composition, cam 46-1 is gear structure close to the side of rack, is meshed with rack, under another side shield
Side is opened there are one groove 46-12, which can be rotated for being directed at or cutting off light path around camshaft 46-11.When
When keycap loosens, spring-return is to original position, keycap cap 41 is moved up with carry-over bar 41-1, is further driven to cam 46-1 rotations
Turn, when keycap cap 41 is moved to resting position, the groove 46-12 below cam link has been staggered the 4th of free form surface completely
Path channels between refractive prism 45-1 and the 5th refractive prism 45-2 of free form surface lead to the 4th refractive power of free form surface
Light path between prism 45-1 and the 5th refractive prism 45-2 of free form surface is cut off by the baffle of cam, the central shaft of light path
Z is stopped by the entity of baffle, is unable to trigger current in SMD PT pipes 18, the circuit being attached thereto is off.It is described
Free form surface the 4th refractive prism 45-1 and free form surface the 5th refractive prism 45-2, below to be used for collimating or gather
The Fresnel surface of light, top be inclined fully reflecting surface, output and input end face be mutually aligned, be spaced a cam
46-1, from the right output end face of the 4th refractive prism 45-1 to the left side input end face of the 5th refractive prism 45-2, light path
Central shaft is Z axis.Fig. 6 (c), Fig. 6 (d) are the state that keycap pushes.Wherein Fig. 6 (c) is the section along flank of cam direction
Figure, wherein Fig. 6 (d) are the view along the directions G in upper figure.When keycap pushes, keycap cap 41 is with carry-over bar 41-1 to moving down
It is dynamic, cam 46-1 rotations are further driven to, when keycap presses to most bottom, the center of the groove 46-12 below cam link is just
The optical path Center Z between the 4th refractive prism 45-1 of free form surface and the 5th refractive prism 45-2 of free form surface is rotated to well
The position of axis.The light sent out from SMD IR pipes 17 collimates and turns by the 4th refractive prism 45-1 of the free form surface above it
After folding, from it on the right of output end face output, collimated ray is placed through the groove 46-12 on cam 46-1, is incident on another
In 5th refractive prism 45-2 of the free form surface of side, after its turnover and assembling, SMD PT pipes below are focused on
On 18, electric current is generated to trigger in SMD PT pipes 18, the circuit being attached thereto is in the conduction state.
The lower section of above-mentioned refractive prism is for collimating or the Fresnel surface of optically focused, and top is inclined reflecting surface；Institute
The free form surface that reflecting surface is off axis paraboloid mirror, off-axis 2 curved surfaces or polynomial surface is stated, may be that inclination is pure flat
Face, or the compound curved surface for multiple faces composition；Above-mentioned reflecting surface is high reflectance surface, and reflectance factor is more than 80%, is
Bright silver is bright gold color, or high reflectance white or light reflection coating.
Embodiment five
There is a kind of ultrathin optical reflection type involved by the present embodiment the PKB photoelectric keyboard of dentalation to switch module, light
Path channels are formed between ballistic device and light receiving element, which can be by light path switch and collimation Fresnel
The 6th refractive prism composition of lens, free form surface.
The light emitting devices (SMD IR pipes 17) and collimation Fresnel Lenses can by the way of placing vertically
To be fixed on the pcb board 56 or upper set casing of module bottom with buckle.
The light receiving element (SMD PT pipes 18) is horizontally fixed on pcb board, and the lower set casing 55 connects by dipped beam
Receiving above device (SMD PT pipes 18) has the second through-hole.
Above-mentioned light path switch includes being located at the rack below keycap, the cam on pcb board.By pressing the key
Cap so that the underlying rack moves up and down to drive the cam to make radial rotary motion, realizes the light path
The conducting and disconnection in channel.Wherein, gear is plate-like, and the structure feature of cam is：There is dentalation, remote close to the side of rack
Side from rack has baffle, centre to be connected by connecting rod.The light path switch structure constituted using cam in the present embodiment.
Shown in switch control principle such as Fig. 7 (a)-Fig. 7 (d) of the specific embodiment of the present embodiment.Fig. 7 (a), Fig. 7 (b)
Loosen for keycap, spring-return to original position when state.Fig. 7 (a) is the sectional view along flank of cam direction, and Fig. 7 (b) is edge
The view in the directions G in upper figure.Its as shown in the figure optical switch by below keycap rack 51-1, be fixed on pcb board
Cam 56-1 composition, cam 56-1 is gear structure close to the side of rack, is meshed with rack, under another side shield
Side is opened there are one groove 56-12, which can be rotated for being directed at or cutting off light path around camshaft 56-11.When
When keycap loosens, spring-return is to original position, keycap cap 51 is moved up with carry-over bar 51-1, is further driven to cam 56-1 rotations
Turn, when keycap cap 51 is moved to resting position, the groove 56-12 below cam link has been staggered collimation Fresnel Lenses completely
And the path channels between the 6th refractive prism 55-2 of free form surface, cause to collimate the 6th of Fresnel Lenses and free form surface
Light path between refractive prism 55-2 is cut off by the baffle of cam, and the central shaft Z of light path is stopped by the entity of baffle, SMD
It is unable to trigger current in PT pipes 18, the circuit being attached thereto is off.
6th refractive prism 55-2 of the free form surface, below for for collimating or the Fresnel surface of optically focused,
Top be inclined fully reflecting surface, input end face with collimate Fresnel Lenses output end face be mutually aligned, be spaced
One cam 56-1, it is defeated from the left side of the right output end face to the 6th refractive prism 55-2 of the collimation Fresnel Lenses being vertically arranged
Enter end face, optical path Center axis is Z axis.Fig. 7 (c), Fig. 7 (d) are the state that keycap pushes.Wherein Fig. 7 (c) is along cam side
The sectional view in face direction, wherein Fig. 7 (d) are the view along the directions G in upper figure.When keycap pushes, keycap cap 51 is with moving teeth
51-1 is moved down, and is further driven to cam 56-1 rotations, when keycap presses to most bottom, the groove below cam link
The center of 56-12 just rotates to the optical path Center between collimation Fresnel Lenses and the 6th refractive prism 55-2 of free form surface
The position of Z axis.The light sent out from SMD IR pipes 17 after the collimation Fresnel Lenses collimation on the right side of it, from it on the right of
Output end face exports, and collimated ray is placed through the groove 56-12 on cam 56-1, is incident on the of the free form surface of the other side
In six refractive prism 55-2, after its turnover and assembling, focus on SMD PT pipes 18 below, to trigger SMD PT
Electric current is generated in pipe 18, the circuit being attached thereto is in the conduction state.
The lower section of above-mentioned refractive prism is for collimating or the Fresnel surface of optically focused, and top is inclined reflecting surface；Institute
The free form surface that reflecting surface is off axis paraboloid mirror, off-axis 2 curved surfaces or polynomial surface is stated, may be that inclination is pure flat
Face, or the compound curved surface for multiple faces composition；Above-mentioned reflecting surface is high reflectance surface, and reflectance factor is more than 80%, is
Bright silver is bright gold color, or high reflectance white or light reflection coating.
Embodiment six
There is a kind of ultrathin optical reflection type involved by the present embodiment the PKB photoelectric keyboard of dentalation to switch module, light
Path channels are formed between ballistic device and light receiving element, which can be by light path switch and collimation Fresnel
Lens form.
The light emitting devices (SMD IR pipes 17) and collimation Fresnel Lenses, light receiving element (SMD PT pipes 18),
By the way of placing vertically, it can be fixed on the pcb board 66 or upper set casing 65 of module bottom with buckle.
Above-mentioned light path switch includes being located at the rack below keycap, the cam on pcb board or upper set casing.Pass through
Press the keycap so that the underlying rack moves up and down to drive the cam to make radial rotary motion, real
The conducting and disconnection of the existing path channels.Wherein, gear is plate-like, and the structure feature of cam is：Have close to the side of rack
Dentalation, the side far from rack have baffle, centre to be connected by connecting rod.The light path constituted using cam in the present embodiment is opened
Close structure.
Shown in switch control principle such as Fig. 8 (a)-(d) of the specific embodiment of the present embodiment.Fig. 8 (a), Fig. 8 (b) are
State when keycap loosens, spring-return is to original position.Fig. 8 (a) be along flank of cam direction sectional view, Fig. 8 (b) be along
The view in the directions G in upper figure.Its as shown in the figure optical switch by below keycap rack 61-1, be fixed on pcb board
Cam 66-1 compositions, cam 66-1 is gear structure close to the side of rack, is meshed with rack, the lower section of another side shield
It opens there are one groove 66-12, which can be rotated for being directed at or cutting off light path around camshaft 66-11.Work as key
When cap loosens, spring-return is to original position, keycap cap 61 is moved up with carry-over bar 61-1, is further driven to cam 66-1 rotations,
When keycap cap 61 is moved to resting position, the groove 66-12 below cam link be staggered completely collimation Fresnel Lenses and
Path channels between light receiving element (SMD PT pipes 18) cause to collimate Fresnel Lenses and light receiving element (SMD PT pipes
18) light path between is cut off by the baffle of cam, and the central shaft Z of light path is stopped by the entity of baffle, in SMD PT pipes 18
It is unable to trigger current, the circuit being attached thereto is off.
From the right output end face for the collimation Fresnel Lenses being vertically arranged to the optical receiver being equally vertically arranged
Part, be spaced a cam 66-1, optical path Center axis is Z axis.Fig. 8 (c), Fig. 8 (d) are the state that keycap pushes.Wherein
Fig. 8 (c) is the sectional view along flank of cam direction, and wherein Fig. 8 (d) is the view along the directions G in upper figure.When keycap pushes
When, keycap cap 61 is moved down with carry-over bar 61-1, is further driven to cam 66-1 rotations, convex when keycap presses to most bottom
Wheel connecting rod below groove 66-12 center just rotate to collimation Fresnel Lenses and light receiving element (SMD PT pipes 18) it
Between optical path Center Z axis position.The light sent out from SMD IR pipes 17 collimates it by the collimation Fresnel Lenses on the right side of it
Afterwards, from the output end face output on the right of it, collimated ray is placed through the groove 56-12 on cam 56-1, is incident on the other side
Light receiving element (SMD PT pipes 18) on, generate electric current to trigger in SMD PT pipes 18, the circuit being attached thereto be in lead
Logical state.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, it is other it is any without departing from the spirit and principles of the present invention made by changes, modifications, substitutions, combinations, simplifications,
Equivalent substitute mode is should be, is included within the scope of the present invention.
Claims (18)
1. it is a kind of ultrathin type optical reflection type have dentalation input equipment switch module, including keycap, key axis, spring,
Upper set casing, lower set casing, pcb board, which is characterized in that input equipment switch module further include a light emitting devices and
One light receiving element, forms path channels between light emitting devices and light receiving element, the path channels include a light
Way switch, the light path switch include being located at the rack below keycap, gear or cam on pcb board, pass through pressing
The keycap so that the underlying rack moves up and down to be transported with driving the gear or cam to make radial rotation
It is dynamic, realize the conducting and disconnection of the path channels, the light emitting devices and light receiving element be horizontally placed on it is described
On pcb board, first through hole and the second through-hole are provided on the lower set casing, and the first through hole is located at the optical transmitting set
Above part, second through-hole is located above the light receiving element, and the path channels include being located at lower set casing first to lead to
The first refractive prism on hole site, the second refractive prism on the second lead to the hole site of lower set casing, by being located at the key
The light path switch of rack below cap and the gear composition on the pcb board；
When the keycap pull-off spring is returned in situ, the keycap drives the rack being disposed below to move up, in turn
Band moving gear rotates, the third through-hole opened up on gear at this time be staggered completely first refractive prism and the second refractive prism it
Between path channels, path channels are cut off by the gear, and light receiving element is unable to trigger current, and the circuit being attached thereto is in
Off-state；
When the keycap pushes, the keycap drives the rack being disposed below to move down, and then is rotated with moving gear, when
When the keycap presses to most bottom, the center of the third through-hole opened up on gear just rotates to first refractive prism
And the position of the second optical path Center Z axis between refractive prism, the light sent out from the light emitting devices is by above it
After first refractive prism collimation and turnover, from it on the right of output end face output, collimated ray is placed through on gear
Third through-hole, be incident on the other side
In second refractive prism, after its turnover and assembling, focus on the light receiving element below, to trigger
Electric current is generated, the circuit being attached thereto is in the conduction state.
2. there is ultrathin type optical reflection type according to claim 1 the input equipment of dentalation to switch module, special
Sign is, the light emitting devices and/or light receiving element are to be horizontally placed on the pcb board or the optical transmitting set
Part and/or light receiving element are vertically arranged on the pcb board or on upper set casing.
3. there is ultrathin type optical reflection type according to claim 1 the input equipment of dentalation to switch module, special
Sign is that the light emitting devices is vertically arranged on the pcb board or fixed shell；
The light receiving element is to be horizontally placed on the pcb board, is provided with the second through-hole on the lower set casing, and described
Second through-hole is located above the light receiving element.
4. there is ultrathin type optical reflection type according to claim 3 the input equipment of dentalation to switch module, special
Sign is that the path channels include the collimation phenanthrene being set to using vertical mode on the pcb board or fixed shell
Nie Er lens, the second refractive prism on the second lead to the hole site of lower set casing, by below the keycap rack and
The light path switch of gear composition on the pcb board.
5. there is ultrathin type optical reflection type according to claim 4 the input equipment of dentalation to switch module, special
Sign is,
When the keycap pull-off spring is returned in situ, the keycap drives the rack being disposed below to move up, in turn
Band moving gear rotates, and the third through-hole opened up on gear at this time is staggered the collimation Fresnel Lenses and the second refractive prism completely
Between path channels, path channels are cut off by the gear, and light receiving element is unable to trigger current, at the circuit being attached thereto
In off-state；
When the keycap pushes, the keycap drives the rack being disposed below to move down, and then is rotated with moving gear, when
When the keycap presses to most bottom, it is saturating that the center of the third through-hole opened up on gear just rotates to the collimation Fresnel
The position of optical path Center Z axis between mirror and the second refractive prism, the light sent out from the light emitting devices is by its right side
Collimation Fresnel Lenses collimation after, from it on the right of output end face output, collimated ray is placed through on gear
Third through-hole is incident in the second refractive prism of the other side, after its turnover and assembling, focuses on the light below
On receiving device, to trigger generation electric current, the circuit being attached thereto is in the conduction state.
6. there is ultrathin type optical reflection type according to claim 1 the input equipment of dentalation to switch module, special
Sign is, the light emitting devices and/or the light receiving element are vertically arranged in the pcb board and/or described solid
Determine on shell.
7. there is ultrathin type optical reflection type according to claim 6 the input equipment of dentalation to switch module, special
Sign is that the path channels include the collimation phenanthrene being set to using vertical mode on the pcb board or fixed shell
Nie Er lens, the light path switch being made of the rack below the keycap and the gear on the pcb board.
8. there is ultrathin type optical reflection type according to claim 7 the input equipment of dentalation to switch module, special
Sign is,
When the keycap pull-off spring is returned in situ, the keycap drives the rack being disposed below to move up, in turn
Band moving gear rotates, the third through-hole opened up on gear at this time be staggered completely the collimation Fresnel Lenses and light receiving element it
Between path channels, path channels are cut off by the gear, and light receiving element is unable to trigger current, and the circuit being attached thereto is in
Off-state；
When the keycap pushes, the keycap drives the rack being disposed below to move down, and then is rotated with moving gear, when
When the keycap presses to most bottom, it is saturating that the center of the third through-hole opened up on gear just rotates to the collimation Fresnel
The position of optical path Center Z axis between mirror and light receiving element, the light sent out from the light emitting devices is by the right side of it
After collimation Fresnel Lenses collimation, from it on the right of output end face output, collimated ray is placed through the on gear
Three through-holes are incident on the light receiving element of the other side, and to trigger generation electric current, the circuit being attached thereto is on
State.
9. there is ultrathin type optical reflection type according to claim 1 the input equipment of dentalation to switch module, special
Sign is that the path channels include the 4th refractive prism being located on lower set casing first through hole position, are located at lower set casing
The 5th refractive prism on second lead to the hole site, by the rack below the keycap and the cam on the pcb board
The light path switch of composition is meshed, far wherein the cam is gear structure close to the side of the rack with the rack
Side from the rack is baffle, and the gear structure is connected by connecting rod with the baffle, opened up below the baffle
There are one groove, which can be rotated for being directed at or cutting off light path around camshaft.
10. there is ultrathin type optical reflection type according to claim 9 the input equipment of dentalation to switch module, special
Sign is,
When the keycap pull-off spring is returned in situ, the keycap drives the rack being disposed below to move up, in turn
Band moving cam rotates, and the groove opened up below the baffle of cam at this time is staggered the 4th refractive prism and the 5th refractive power rib completely
Path channels between mirror, path channels are cut off by the gear, and light receiving element is unable to trigger current, the circuit being attached thereto
It is off；
When the keycap pushes, the keycap drives the rack being disposed below to move down, and then is rotated with moving cam, when
When the keycap presses to most bottom, the center of the groove opened up below the baffle of cam just rotates to the 4th refractive power
The position of optical path Center Z axis between prism and the 5th refractive prism, the light sent out from the light emitting devices is by thereon
Side the 4th refractive prism collimation and turnover after, from it on the right of output end face output, collimated ray is placed through convex
The groove opened up below the baffle of wheel, is incident in the 5th refractive prism of the other side, after its turnover and assembling, focuses on
On the light receiving element below, to trigger generation electric current, the circuit being attached thereto is in the conduction state.
11. there is ultrathin type optical reflection type according to claim 3 the input equipment of dentalation to switch module, special
Sign is that the path channels include the collimation phenanthrene being set to using vertical mode on the pcb board or fixed shell
Nie Er lens, the 6th refractive prism on the second lead to the hole site of lower set casing, by below the keycap rack and
The light path switch of cam composition on the pcb board, wherein the cam is gear structure close to the side of the rack,
It is meshed with the rack, and the side far from the rack is baffle, and the gear structure and the baffle are connected by connecting rod
It connects, is opened up below the baffle there are one groove, which can carry out for being directed at or cutting off light path around camshaft
Rotation.
12. there is ultrathin type optical reflection type according to claim 11 the input equipment of dentalation to switch module,
It is characterized in that,
When the keycap pull-off spring is returned in situ, the keycap drives the rack being disposed below to move up, in turn
Band moving cam rotates, and the groove opened up below the baffle of cam at this time is staggered the collimation Fresnel Lenses and the 6th refractive power completely
Path channels between prism, path channels are cut off by the gear, and light receiving element is unable to trigger current, the electricity being attached thereto
Road is off；
When the keycap pushes, the keycap drives the rack being disposed below to move down, and then is rotated with moving cam, when
When the keycap presses to most bottom, the center of the groove opened up below the baffle of cam just rotates to the luxuriant and rich with fragrance alunite of the collimation
The position of optical path Center Z axis between that lens and the 6th refractive prism, the light sent out from the light emitting devices pass through it
After the collimation Fresnel Lenses collimation on right side, from it on the right of output end face output, collimated ray is placed through cam
Baffle below the groove that opens up, be incident in the 6th refractive prism of the other side, after its turnover and assembling, focus on it
On the light receiving element of lower section, to trigger generation electric current, the circuit being attached thereto is in the conduction state.
13. there is ultrathin type optical reflection type according to claim 6 the input equipment of dentalation to switch module, special
Sign is that the path channels include the collimation phenanthrene being set to using vertical mode on the pcb board or fixed shell
Nie Er lens, the light path switch being made of the rack below the keycap and the cam on the pcb board, wherein institute
It is gear structure that cam, which is stated, close to the side of the rack, is meshed with the rack, and the side far from the rack is gear
Plate, the gear structure are connected with the baffle by connecting rod, are opened up below the baffle there are one groove, which is used for
Alignment or cut-out light path, can be rotated around camshaft.
14. there is ultrathin type optical reflection type according to claim 13 the input equipment of dentalation to switch module,
It is characterized in that,
When the keycap pull-off spring is returned in situ, the keycap drives the rack being disposed below to move up, in turn
Band moving cam rotates, and the groove opened up below the baffle of cam at this time is staggered the collimation Fresnel Lenses and optical receiver completely
Path channels between part, path channels are cut off by the gear, and light receiving element is unable to trigger current, the circuit being attached thereto
It is off；
When the keycap pushes, the keycap drives the rack being disposed below to move down, and then is rotated with moving cam, when
When the keycap presses to most bottom, the center of the groove opened up below the baffle of cam just rotates to the luxuriant and rich with fragrance alunite of the collimation
The position of optical path Center Z axis between that lens and light receiving element, the light sent out from the light emitting devices are right by its
After the collimation Fresnel Lenses collimation of side, from it on the right of output end face output, collimated ray is placed through cam
The groove opened up below baffle, is incident on the light receiving element, to trigger generation electric current, the circuit being attached thereto is in
Conducting state.
15. there is ultrathin type optical reflection type according to any one of claims 1 to 14 the input equipment of dentalation to switch
Module, which is characterized in that the light emitting devices is SMD IR infrared diodes or laser diode, the light receiving element
It is managed for SMD PT.
16. there is the defeated of dentalation according to any ultrathin optical reflection type of claim 1,4,5,9,10,11,12
Enter facility switching module, which is characterized in that the lower section of the refractive prism is the folding for collimating or the Fresnel surface of optically focused
The top of light prism is inclined reflecting surface；The reflecting surface is off axis paraboloid mirror, off-axis 2 curved surfaces or polynomial surface
Free form surface, or to tilt pure-surface, or the compound curved surface for multiple faces composition；The reflecting surface is high reflectance surface,
Reflectance factor is more than 80%, is bright silver or is bright gold color, or is high reflectance white or light reflection coating.
17. there is tooth according to any ultrathin optical reflection type of claim 2,3,4,5,6,7,8,11,12,13,14
The input equipment of shape structure switchs module, which is characterized in that the side that the light emitting devices, the light receiving element pass through buckle
Formula is fixed on the pcb board or fixed shell.
18. there is dentalation according to any ultrathin optical reflection type of claim 4,5,7,8,11,12,13,14
Input equipment switch module, which is characterized in that the collimation Fresnel Lenses is fixed on the pcb board by way of buckle
Or on fixed shell.
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| CN201510409020.9A CN105118714B (en) | 2015-07-13 | 2015-07-13 | A kind of ultrathin type optical reflection type has the input equipment switch module of dentalation |
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| CN105118714B true CN105118714B (en) | 2018-09-04 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106505982B (en) * | 2016-12-12 | 2018-05-08 | 深圳市煌兆铭科技有限公司 | Photoelectric mechanical switch, mechanical keyboard and acceleration execution method |
| CN106863439B (en) * | 2017-03-13 | 2017-12-26 | 连云港市赣榆区生产力促进中心 | A kind of switching device in sheet cutting machine |
| CN107180719A (en) * | 2017-07-11 | 2017-09-19 | 东莞市高特电子有限公司 | One kind heavy board-like ultra-thin photoelectric mechanical keyboard switch and keyboard |
| CN111312548A (en) * | 2020-03-31 | 2020-06-19 | Tcl-罗格朗国际电工（惠州）有限公司 | Switch structure and socket |
| CN112944404B (en) * | 2021-03-01 | 2023-03-24 | 深圳市金版文化数字传媒有限公司 | Intelligent kitchen cooking stove |
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| CN103322504B (en) * | 2012-03-19 | 2017-08-11 | 东莞市美光达光学科技有限公司 | The secondary optical lens of the LED backlight system shown for flat liquid crystal |
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| CN2147638Y (en) * | 1993-02-17 | 1993-11-24 | 张慧珠 | Pressing suitch with rotation driving mechanism |
| CN201522693U (en) * | 2009-10-30 | 2010-07-07 | 张波 | Mouse capable of driving grid wheel to rotate by micro-motor |
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