WO2023116690A1 - 一种采用光开关的笔记本键盘 - Google Patents

一种采用光开关的笔记本键盘 Download PDF

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Publication number
WO2023116690A1
WO2023116690A1 PCT/CN2022/140345 CN2022140345W WO2023116690A1 WO 2023116690 A1 WO2023116690 A1 WO 2023116690A1 CN 2022140345 W CN2022140345 W CN 2022140345W WO 2023116690 A1 WO2023116690 A1 WO 2023116690A1
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WIPO (PCT)
Prior art keywords
ring
support plate
elastic
plate
light
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PCT/CN2022/140345
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English (en)
French (fr)
Inventor
陈�峰
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陈�峰
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Publication of WO2023116690A1 publication Critical patent/WO2023116690A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—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
    • H01H13/83—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 characterised by legends, e.g. Braille, liquid crystal displays, light emitting or optical elements

Definitions

  • claim 1 and claim 4 respectively require the priority of claim 28 and claim 31 with application number 202111576013X and application date of 2021-12-21 and corresponding embodiments.
  • the present invention relates to a keyboard using an optical switch, in particular to the composition and structure of a keyboard using an optical switch loaded in a keyboard as an input device of an electronic instrument.
  • the important technical indicators of the existing notebook keyboards include: service life, thinning of the keyboard, rebound rate of the keycap>40%, waterproof effect, better hand feeling when hitting the key, luminous brightness of the keycap characters, etc.;
  • the reset body generally adopts a rubber elastic ring, and the "Guinness World Record” accurately knocks down 807 keys per minute! That is, the keyboard is hit 13.45 times per second.
  • the computer keyboard has an important technical index: the rebound rate> 40%.
  • the existing optical switch keyboard is connected by a keycap (1) and a key branch Structure (2), reset body, metal support plate (4, switch blocking body 5, light guide plate 7, PCB board 8, Led light source 9, photosensitive element 10, wherein, the reset body is an arched reset body or spring or magnetic body, the arch reset body is composed of a ring elastic support plate 6 or a rubber elastic ring 3 (the rubber elastic ring 3 is still widely used on computer keyboards); the switch blocking body 5 is located directly below the rubber elastic ring 3, and the light guide plate module 11 is located under the metal support plate (4, the circuit chip is connected to the metal support plate 4 and located under the metal support plate 4, and the arch reset body is located between the keycap 1 and the light guide plate module 11.
  • the through hole 7-1, the ring elastic support plate 6 is located above the switch blocking body 5, the switch blocking body 5 is arranged under the ring elastic support plate 6, and the blocking action space 7-2 below the switch blocking body 5 is closed
  • the Led light source 9 packaged as a patch and the photosensitive element 10 packaged as a patch are welded near the middle of the circuit sheet.
  • There is a space for receiving hair between the Led light source 9 and the photosensitive element 10, and the film printed with characters ( (not shown in the figure) is located above the ring elastic support plate 6, and this technical solution is mainly used for membrane keyboards with luminous characters on the film; the ring elastic support plate 6 is still widely used in membrane keyboards and remote controllers of metal contact switches.
  • the blocking action space 7-2 of the light guide plate module 11 in the specification is a closed space, and the blocking action spaces 7-2 in rows are connected. Rows of connected blocking action spaces 7-2 are communicated with the communication interface connected with the communication line, and the communication interface is connected with the outside or the row of connected blocking action spaces 7-2 is connected with the elastic thin-walled air bag connected.
  • the [0149]--[0151] blocking body 2-1 in the specification can also be a metal shrapnel of metal material, and the light blocking part 2-2 is arranged on the elastic metal shrapnel.
  • the rubber spring ring 3 is composed of the spring ring upper boss 3-2, the spring ring lower boss 3-2, the spring ring lower boss 3-5, the spring ring contact 3-7, and the spring ring lower row
  • the air groove 3-8 and the spring ring elastic wall 3-9 are formed; in order to make the restoring force produced by the rubber spring ring 3 meet the rebound rate>40%, the boss 3-2 of the spring ring upper boss 3-2
  • the H1 size and H2 size are designed to be relatively large. When the keycap 1 is close to the lower limit position, the H1 size of the spring ring upper boss 3-2 is compressed, and the keycap 1 is pressed down to the lower limit position. , the boss 3-2 on the spring ring produces a larger elastic deformation.
  • the keycap 1 moves downward, and the spring ring contacts 3-7 begin to touch the membrane switch (not shown in the figure) to cause deformation.
  • the boss 3-2 on the ring, the boss 3-2 on the ring, the contact 3-7 of the ring, and the elastic wall 3-9 of the ring produce serious extrusion deformation and produce a large reset elastic force, so that the return of the keycap 1 Elastic rate > 40%; the rubber elastic ring 3 is severely squeezed and deformed, which greatly reduces the service life of the rubber elastic ring 3 .
  • the relationship diagram of the elastic force and displacement of the ring elastic support plate 6 is similar to that of the rubber spring ring 3, and also has a similar collapsed feel, but there is no requirement for the rebound rate > 40%, and the ring elastic support plate 6 is compressed Severe deformation occurs when reaching the lowest position, which greatly reduces the service life of the ring elastic support plate 6 .
  • the prior art fails to propose a technical solution to make the keyboard thinner; when the prior art adopts the combined technical solution of the rubber elastic ring and the switch blocking body, it fails to propose a technical solution to realize the thinner keyboard;
  • the reset body of the prior art adopts the typical structure of the rubber elastic ring 3 commonly used in the existing keyboard, and the existing rubber elastic ring deforms greatly during use (when the keyboard is in a low position, the rubber elastic ring is squeezed and deformed to obtain rebound rate), greatly reducing the service life of the rubber elastic ring;
  • the switch blocking body 5 is a metal shrapnel.
  • the size of the metal shrapnel is larger than that of the rubber spring ring.
  • the size increases the difficulty of sealing the optical switch; the existing technology fails to propose a specific technical solution for adopting sealing measures for the optical switch; the unsealed optical switch will greatly reduce the service life of the optical switch; during the use of the keyboard, if the tea is not careful Entering the optical switch seriously affects the life of the optical switch keyboard. When used for a long time, the entry and accumulation of dust also seriously affects the life of the optical switch keyboard.
  • the switch blocking body 5 adopts a metal shrapnel, and when the keyboard adopts a combination technical scheme of a rubber spring ring and a metal shrapnel, the prior art fails to propose specific details of the light-blocking part and the light-transmitting part of the metal shrapnel.
  • the purpose of the present invention is to provide a thin and sealed optical switch keyboard, especially to provide an optical switch keyboard with better hand feeling and longer service life.
  • a notebook keyboard using an optical switch comprising a keycap 1, a key connecting structure 2, a reset body, a metal support plate 4, a light emitter, an optical connector, a light guide plate module, a switch blocking body 5, and a circuit chip, wherein, the optical signal emitted by the optical emitter is connected to the optical path of the optical connector through the light guide plate module, and when the switch blocking body 5 is triggered, the optical connector detects the change of the optical signal;
  • the switch blocking body 5 is composed of a light-transmitting on-off body and a ring elastic support plate 6, or is composed of the ring elastic support plate 6 and the light-transmitting on-off part on the ring elastic support plate 6;
  • the ring elastic support plate 6 is formed by a stamping die.
  • the ring elastic support plate 6 is composed of the ring connecting upper plate 6-3, the ring elastic arm plate 6-4, and the ring lower connecting part 6-5.
  • the ring connecting upper plate 6-3 is located on the plane Higher than the plane where the ring lower connection part 6-5 is located, the ring connection upper plate 6-3 and the ring lower connection part 6-5 are connected by the elastic ring elastic arm plate 6-4, and the middle part of the ring connection upper plate 6-3 is set There is light-transmitting space. claim 28
  • the light-transmitting on-off body is connected to the middle part of the ring elastic support plate 6, and the light-transmitting on-off body is provided with a light-blocking part and a light-transmitting part; the light-transmitting space is connected to the through hole provided on the upper plate 6-3 by the ring
  • the light-transmitting on-off body is made of a thin steel pipe connected to the ring-connected upper plate 6-3 or a light guide column connected to the ring-connected upper plate 6-3 or a lens connected to the ring-connected upper plate 6-3 constitute.
  • the switch blocking body 5 is composed of a light-transmitting on-off body and a ring elastic support plate 6, or is composed of a ring elastic support plate 6 and a light-transmitting on-off part on the ring elastic support plate 6, wherein the light-transmitting on-off body, the light-transmitting The on-off parts are all located in the middle of the ring elastic support plate 6, and the light-transmitting on-off body and the light-transmitting on-off part are both provided with a light-blocking part and a light-transmitting part;
  • the ring elastic support plate 6 is composed of a ring connection upper plate 6-3, a ring elastic arm plate 6-4, and a ring lower connection part 6-5, wherein the plane where the ring connection upper board 6-3 is located is higher than the ring lower connection part 6- 5.
  • the middle part of the ring connection upper plate 6-3 is provided with a light-transmitting space;
  • the reset body is composed of an I reset body and a ring elastic support plate 6.
  • the I reset body is made of a magnetic body or a rubber elastic ring 3.
  • the I reset body lifts the key cap 1, and the key cap 1 is located at the upper limit position; the key cap 1 During downward displacement, the upward reset force of the keycap 1 in the first stroke is provided by the I reset body, and the upward reset force of the keycap 1 in the second stroke is mainly provided by the ring elastic support plate 6;
  • the keycap 1 overcomes the upward force of the reset body and moves downward. After the keycap 1 moves downward for a certain distance, the ring connecting upper plate 6-3 is pushed to move downward, and the ring elastic arm plate 6 -4 produces elastic deformation; when the ring elastic arm plate 6-4 is pressed to the lowest position, the keycap 1 is located at the lower limit position, and the light blocking part disconnects the optical signal emitted by the light emitter from the optical path of the optical connector; the external force removes At this time, mainly the ring elastic arm plate 6-4 of the ring elastic support plate 6 provides an upward elastic force, so that the keycap 1 is reset upward.
  • the ring connecting upper plate 6-3 is provided with a light-transmitting on-off part, and the light-transmitting on-off part is provided with a light-blocking part and a light-transmitting part;
  • the light-blocking part is formed by the circular flanging wall 6-1, and the circular flanging wall 6-1 is formed by a through hole on the ring connecting upper plate 6-3 formed by stamping die, and the light-transmitting part is a light-transmitting space,
  • the light-transmitting space is formed by the ring wall space 6-2, and the ring wall space 6-2 is formed by the space surrounded by the ring wall of the ring flange wall 6-1.
  • reset body is made of rubber elastic ring 3, by reducing the height H1 size of the boss 3-2 on the elastic ring of rubber elastic ring 3 and canceling the elastic ring contact 3-7 of rubber elastic ring 3, the key When the cap 1 drops to the lower limit position, the reset elastic force of the rubber elastic ring 3 becomes smaller;
  • the plane where the ring connecting upper plate 6-3 is located is still higher than the plane where the ring lower connecting portion 6-5 is located, so that when the ring connecting upper plate 6-3 drops from a high position to a low position, the ring elastic arm
  • the reset elastic force generated by the plate 6-4 increases in the same direction as the downward displacement, so that when the keycap 1 is located at the lower limit position, the reset elastic force generated by the ring elastic arm plate 6-4 becomes larger.
  • the keycap 1 when the keycap 1 is at the upper limit position, the keycap 1 is at point a, and under the action of an external force, the keycap 1 is displaced downward, and the keycap 1 moves from point a to point b, and the reset elastic force of the rubber elastic ring 3 increases To the maximum, the keycap 1 continues to move downward, and the keycap 1 is from point b to point c.
  • the reset elastic force of the rubber elastic ring 3 is inversely proportional to the displacement; the keycap 1 continues to move downward, and the ring elastic arm plate 6-4 is Push the downward displacement, the keycap 1 is from point c to point d, the reset elastic force produced by the ring elastic arm plate 6-4 is proportional to the displacement, and the reset elastic force of the rubber elastic ring 3, the ring elastic arm plate 6- Under the combined action of the reset elastic forces of 4, the rebound rate of the keycap 1 is greater than 40%.
  • the notebook keyboard is also provided with a waterproof membrane 13, the rubber elastic ring 3 is connected to the upper surface of the waterproof membrane 13, the waterproof membrane 13 is connected to the upper surface of the metal support plate 4, and the light guide plate module 11 is connected to the metal support plate 4. The lower surface is connected, and the ring elastic support plate 6 is connected to the upper surface of the light guide plate module 11 .
  • the waterproof film 13 is provided with a film-proof through-hole 13-1 and a film-proof arm space 13-2; when the keycap 1 is at the upper limit position, the ring connecting the upper plate 6-3 of the ring elastic support plate 6 passes through
  • the membrane-proof through hole 13-1 is located above the waterproof membrane 13, and the ring elastic arm plate 6-4 is located in the membrane-proof arm space 13-2.
  • the ring elastic support plate 6 is composed of a ring connecting upper plate 6-3, a ring elastic arm plate 6-4, and a ring lower connecting portion 6-5, and the ring connecting upper plate 6-3 is connected with a light-transmitting breaker or
  • the ring-connected upper plate 6-3 is provided with a light-transmitting on-off part;
  • the metal support plate 4 is provided with a support and accommodation arm space 4-2, a branch connection space 4-1, and a space 4-4 in the support plate that run through its surface.
  • the branch connection space 4-1 and the space in the support plate 4-4 are connected by the support containing arm space 4-2, or the branch connection space 4-1 is connected by the support containing arm space 4-2, and the branch connection space 4-1 is connected with the branch connection space 4-1.
  • the number of supporting arm spaces 4-2 is the same and at least 2 are set;
  • the supporting arm space 4-2, the supporting connecting space 4-1, and the space in the supporting plate 4-4 can respectively accommodate the ring elastic arm plate 6-4, the ring lower connection part 6-5, the light-transmitting breaker or the ring elastic support The light-transmitting on-off part of the plate 6.
  • the metal support plate 4 is provided with a support plate conflicting surface 4-3, and the support plate conflicting surface 4-3 is located outside the space 4-4 in the support plate, and is located between the supporting arm space 4-2 or between the ring elastic arms. Plate 6-4 below.
  • the support plate conflicting surface 4-3 is a part of the metal support plate 4, and the support plate conflicting surface 4-3 is formed by a stamping die to form a concave step surface, and the support plate conflicting surface 4-3 is located on the II plane, and the II plane The plane is located between the I plane and the III plane, and the I plane and the III plane are respectively located on the upper surface and the lower surface of the metal support plate 4 .
  • the light guide plate module 11 is connected to the lower surface of the metal support plate 4, the metal support plate 4 is provided with a support plate shooting space 4-5 that runs through its surface, and the ring elastic support plate 6 is located in the support plate shooting space 4 -5 and connected to the upper surface of the light guide plate module 11 through the ring lower connection part 6-5, wherein the ring lower connection part 6-5 is connected to form an integral closed ring;
  • the rubber elastic ring 3 is provided with an elastic ring arm space 3-6, a ring sealing extension surface 3-11, an upper boss 3-2 of the elastic ring, and a lower boss 3-5 of the elastic ring, wherein the lower boss 3-5 of the elastic ring
  • the lower surface of the bottom surface is provided with at least two spring ring extension bosses 3-12 extending downward, and at least two spring ring arm spaces 3-6 are arranged between the spring ring extension bosses 3-12, and the ring seal extends
  • the surface 3-11 is connected with the circular surface of the lower boss 3-5 of the elastic ring which is a closed ring, and the lower surface of the ring seal extension surface 3-11 is located above the lower surface of the lower boss 3-12 of the elastic ring; the ring seal
  • the lower surface of the extension surface 3-11 is sealed and connected with the upper surface of the ring lower connection part 6-5, and the elastic ring extends downwardly and the boss 3-12 passes through the ring spring arm side space 6-6 of the ring elastic support plate 6 and
  • the notebook keyboard is also provided with a metal lower support plate 14, the upper surface of the metal lower support plate 14 is connected to the lower surface of the metal support plate 4, and the lower surface of the metal lower support plate 14 is connected to the upper surface of the light guide plate 7.
  • the board surface is connected
  • the metal lower support plate 14 is provided with a gold lower branch through hole 14-1 that runs through its board surface
  • the support plate interference surface 4-3 is located on the bending edge of the gold lower branch through hole 14-1 or under the gold
  • the support plate conflict surface 4-3 is higher than the upper plate surface of the metal lower support plate 14.
  • the invention provides a thin and sealed optical switch keyboard.
  • the technical scheme of the invention makes the optical switch keyboard have better hand feeling and longer service life, which can be applied to PC keyboards, especially suitable for thin notebook keyboards.
  • the through hole connecting the ring to the upper plate 6-3 is molded to form the ring flange wall 6-1 and the ring wall space 6-2 to simplify the structure of the ring elastic support plate 6;
  • the establishment of the support plate interference surface 4-3 prevents the optical switch from being affected by the processing error of the rubber elastic ring 3, ensures the distance from the end surface of the circular flanged wall 6-1 to the upper surface of the PCB board 8, and increases the Reliability of the switch; at the same time, when the keycap 1 is at the lower limit position, the support plate resistance surface 4-3 will be connected to the lower plate surface of the upper plate 6-3, and be limited to the lower plate that is higher than the lower connecting portion 6-5 of the ring The position of the surface greatly increases the service life of the ring elastic support plate 6;
  • the reset body adopts the combination of the rubber elastic ring 3 and the ring elastic support plate 6. After the optimized design, the deformation of the rubber elastic ring 3 and the ring elastic support plate 6 is reduced during use, which greatly improves the rubber elastic ring 3 and the ring elastic support plate. Plate 6 service life;
  • the ring elastic support plate 6 adopts 2 ring elastic arm plates 6-4 with a mutual 180°, and adopts the lower boss 3-5 of the rubber elastic ring 3 to be provided with 2 lower convex shells 3-10 of the elastic ring,
  • the elastic ring lower convex shell 3-10 is provided with an elastic ring arm space 3-6; the technology of the present invention can also be used for function keys (small keys such as F keys) with ultra-small structures.
  • Fig. 1 is a front view of a notebook keyboard with 101 key positions
  • Figure 2 is a partially enlarged view of Figure 1;
  • Fig. 3 is a partial perspective view of a key unit of Fig. 2;
  • Fig. 4 is an exploded view of a key unit of the existing optical switch keyboard of Fig. 3;
  • FIG. 5 is an exploded perspective view of a thin film optical switch using a ring elastic support plate 6 in the prior art
  • Fig. 6 is a perspective view of a rubber elastic ring 3 of the prior art
  • Fig. 7 is the front view of rubber elastic ring 3 of prior art
  • Fig. 8 is a perspective view of the ring elastic support plate 6 of the prior art
  • Fig. 9 is the relationship diagram between the force F and the stroke H of the rubber elastic ring 3 of the prior art and the deformation diagram of the rubber elastic ring 3 at key points;
  • Fig. 10 is the relationship diagram between the ring elastic support plate force F and the stroke H of the prior art and the deformation diagram of the metal dome at key points;
  • Fig. 11 is an exploded view of a key unit of the optical switch keyboard of the present invention.
  • Fig. 12 is a partially enlarged view of Fig. 11;
  • Fig. 13 is a perspective view of the rubber elastic ring 3 of the present invention.
  • Fig. 14 is a perspective view of the ring elastic support plate 6 of the present invention.
  • 15 is a perspective view of the light guide plate module 11 of the present invention installed on the lower surface of the metal support plate 4;
  • Fig. 16 is a perspective view after the waterproof membrane 13 of the present invention is connected to the upper surface of the metal support plate 4;
  • Fig. 17 is a perspective view after the rubber elastic ring 3 of the present invention is connected to the upper surface of the waterproof membrane 13;
  • FIG. 18 is a perspective view of the exhaust groove provided in the light guide plate module 11 of the present invention.
  • Fig. 19 is the front view of a key unit of the optical switch keyboard of the present invention.
  • Fig. 20 is an A-A cross-sectional view of the keycap 1 of the present invention in Fig. 19 when it is at the upper limit position;
  • Fig. 21 is an A-A cross-sectional view of the keycap 1 of the present invention in Fig. 19 when it is at the lower limit position;
  • Fig. 22 is a B-B sectional view of the keycap 1 of the present invention in Fig. 19 when it is at the lower limit position;
  • Figure 23 is a partial enlarged view of Figure 21;
  • Figure 24 is a partial enlarged view of Figure 22;
  • Fig. 25 is the relationship diagram between the force F and the stroke H of the rubber elastic ring 3 of the present invention and the deformation diagram of the rubber elastic ring 3 at key points;
  • Fig. 26 is the relationship diagram between the force F and the stroke H of the ring elastic support plate of the present invention and the deformation diagram of the ring elastic support plate at key points;
  • Fig. 27 is a perspective view of another structure of the metal support plate 4 of the present invention.
  • Fig. 28 is a perspective view of another structure of the metal support plate 4 of the present invention.
  • Fig. 29 is a perspective view of another structure of the metal support plate 4 of the present invention.
  • Figure 30 is a perspective view of another structure of the metal support plate 4 of the present invention.
  • Fig. 31 is another kind of structure of the present invention is provided with the explosion perspective view of the metal support plate 4 of metal lower support plate (14;
  • Fig. 32 is a perspective view of the metal support plate 4 of Fig. 31;
  • FIG. 33 is an exploded perspective view of a metal support plate 4 provided with a metal lower support plate 14 according to another structure of the present invention.
  • Fig. 34 is a perspective view of the metal support plate 4 of Fig. 33;
  • Fig. 35 is an exploded view of a key unit that adopts the F key of 2 ring elastic arm plates 6-4 of the optical switch keyboard of the present invention
  • Figure 36 is a partial enlarged view of Figure 35;
  • Figure 37 is a perspective view of the rubber elastic ring 3 of the F key of the present invention.
  • Figure 38 is a perspective view of the rubber elastic ring 3 of the F key of the present invention.
  • Fig. 39 is a sectional view of a key unit when the F key of the present invention is located at the upper limit position;
  • Fig. 40 is a sectional view of a key unit when the F key of the present invention is located at the lower limit position;
  • Fig. 41 is another sectional view of a key unit when the F key of the present invention is located at the upper limit position;
  • Fig. 42 is an exploded front view of a rubber elastic ring 3 of another structure and ring elastic support plates of four arms of another structure of the present invention
  • Figure 43 is a front view of 42
  • Fig. 44 is an exploded perspective view of Fig. 43;
  • Figure 45 is a perspective view of the fit of Figure 44;
  • Figure 46 is a perspective view of the rubber elastic ring 3 of the ring elastic support plate 6 of the three arms of the present invention.
  • Figure 47 The perspective view of the cooperation of the rubber elastic ring 3 and the ring elastic support plate 6 of the three arms;
  • Figure 48 is a cross-sectional view of a key unit when the key is located at the upper limit position using the rubber elastic ring and the ring elastic support plate of Figure 47;
  • Fig. 49 is the ring elastic support plate 6 of Fig. 48, a sectional view of a key unit when the key is located at the lower limit position;
  • Fig. 50 is a cross-sectional view of the optical switch body of the present invention using a thin-walled steel pipe;
  • Fig. 51 is a cross-sectional view of the optical switch body of the present invention using a clad plastic optical fiber
  • Fig. 52 is a perspective view of another ring elastic support plate 6 of the present invention.
  • Boss 3-11 extending downward from the elastic ring; metal support plate 4, support connecting space 4-1, space for supporting and receiving arms 4-2, support plate conflicting surface 4-3, space in the support plate 4-4, support plate Shooting space 4-5; switch blocking body 5, ring elastic support plate 6, ring flange wall 6-1, ring wall space 6-2, ring connecting upper plate 6-3, ring elastic arm plate 6-4 , ring lower connection part 6-5, ring spring arm side space 6-6, ring overturning wall release groove 6-7; light guide plate 7, blocking through hole 7-1, blocking action space 7-2; circuit chip is PCB board 8, PCB board 8, Led light source 9, photosensitive element 10, light guide plate module 11, plastic sheet 12, waterproof film 13, film-proof through hole 13-1, film-proof arm space 13-2, metal lower support plate 14. Gold lower branch through hole 14-1, light-transmitting touch panel 15, thin steel pipe 16, light guide column 17.
  • a notebook keyboard using an optical switch including a keycap 1, a key support structure 2, a reset body, a metal support plate 4, an optical emitter, an optical connector, a light guide plate module, and a switch resistor Broken body 5, a circuit chip, wherein the optical signal emitted by the light emitter is connected to the optical path of the optical connector through the light guide plate module, and when the switch blocking body 5 is triggered, the optical connector detects the change of the optical signal; the switch The blocking body 5 is composed of a light-transmitting on-off body and a ring elastic support plate 6, or is composed of the ring elastic support plate 6 and the light-transmitting on-off part on the ring elastic support plate 6;
  • the ring elastic support plate 6 is formed by a stamping die.
  • the ring elastic support plate 6 is composed of the ring connecting upper plate 6-3, the ring elastic arm plate 6-4, and the ring lower connecting part 6-5.
  • the ring connecting upper plate 6-3 is located on the plane Higher than the plane where the ring lower connection part 6-5 is located, the ring connection upper plate 6-3 and the ring lower connection part 6-5 are connected by the elastic ring elastic arm plate 6-4, and the middle part of the ring connection upper plate 6-3 is set There is light-transmitting space.
  • the character of the direct incident key adopts the luminous brightness of the keycap character of the present invention to be even and the brightness is large; wherein, the plane where the ring connects the upper board 6-3 is higher than the plane where the ring lower connecting part 6-5 is located, and the ring connects the upper board 6-3. 3.
  • the lower ring connecting part 6-5 is connected by at least two elastic ring elastic arm plates 6-4, and the middle part of the ring connecting the upper board 6-3 is provided with a light-transmitting space, and the number of the ring lower connecting parts 6-5 is At least two; the light-transmitting space is formed by the space surrounded by the through holes penetrating the plate surface on the ring-connected upper plate 6-3. Both the on-off body and the light-transmitting on-off portion are provided with a light-blocking portion and a light-transmitting portion.
  • the reset body is a rubber elastic ring 3, the rubber elastic ring 3 is connected to the upper surface of the waterproof membrane 13, the waterproof membrane 13 is connected to the upper surface of the metal support plate 4, the light guide plate module 11 is connected to the lower surface of the metal support plate 4, and the ring
  • the elastic support plate 6 is connected to the upper surface of the light guide plate module 11; the waterproof film 13 is provided with a film-proof through hole 13-1 and a film-proof arm space 13-2; when the keycap 1 is at the upper limit position, the ring elastic support plate
  • the ring connected upper plate 6-3 of 6 passes through the waterproof membrane through hole 13-1 and is located above the waterproof membrane 13, and the ring elastic arm plate 6-4 is located in the membrane-proof arm space 13-2; the ring elastic support plate 6 is connected by the ring The upper plate 6-3, the ring elastic arm plate 6-4, and the lower connecting part 6-5 of the ring are formed.
  • reset body is made of I reset body, ring elastic support plate 6, and I reset body is made of magnetic body or is made of rubber elastic ring 3, and I reset body jacks up key cap 1, and key cap 1 is positioned at upper limit position;
  • the keycap 1 When the keycap 1 is displaced downward, the upward reset force of the keycap 1 in the first stroke is provided by the I reset body, and the upward reset force of the keycap 1 in the second stroke is mainly provided by the ring elastic support plate 6; , under the action of external force, the keycap 1 overcomes the upward force of the I reset body and moves downward.
  • the ring After the keycap 1 moves downward for a certain distance, the ring connects the upper plate 6-3 to be pushed to move downward, and the ring elastic arm plate 6-3 4 produces elastic deformation; when the ring elastic arm plate 6-4 is pressed to the lowest position, the keycap 1 is located at the lower limit position, and the light blocking part disconnects the optical signal emitted by the light emitter from the optical path of the optical connector; when the external force is removed , the ring elastic arm plate 6-4 of the ring elastic support plate 6 mainly provides an upward elastic force to reset the keycap 1 upward.
  • the optical switch keyboard consists of a keycap 1, a key support structure 2, a reset body, a metal support plate 4, an optical emitter, an optical connector, a light guide plate module, a switch blocking body 5, and a circuit chip , waterproof film 13, wherein the optical signal emitted by the light emitter is connected to the optical path of the optical connector through the light guide plate module, and when the switch blocking body 5 is triggered, the optical connector detects the change of the optical signal;
  • the reset body is an arched reset body or a spring or a magnetic body, and the arched reset body is composed of a ring elastic support plate 6 or a rubber elastic ring 3 (this embodiment adopts) a rubber elastic ring 3;
  • the switch blocking body 5 is located at the rubber elastic ring 3 Directly below, the light guide plate module 11 is located under the metal support plate 4; the switch blocking body 5 is composed of the ring elastic support plate 6 and the light-transmitting on-off part on the ring elastic support plate 6.
  • the waterproof membrane 13 is located above the metal support plate 4 and is bonded to the upper surface of the metal support plate 4.
  • the waterproof membrane 13 is provided with a membrane-proof through hole 13-1 and a membrane-proof arm space 13-2; the rubber elastic ring 3 Corresponding to the position of the waterproof membrane through hole 13-1, the rubber elastic ring 3 is bonded to the waterproof membrane 13;
  • the space 4-4 in the board is closed;
  • the metal support board 4 is provided with a support and accommodating arm space 4-2, a support connection space 4-1, and a space 4-4 in the support board that run through its board surface, wherein the support and accommodating arm space 4 -2 connect the support connecting space 4-1 and the space 4-4 in the support plate, the number of the support connecting space 4-1 and the supporting arm space 4-2 are the same and at least 2 are set;
  • the metal support plate 4 is provided with support plate interference Surface 4-3, the support plate conflicting surface 4-3 is located outside the space 4-4 in the support plate, and is located between the supporting arm space 4-2 or the support plate conflicting
  • the support plate interference surface 4-3 is a part of the metal support plate 4.
  • the support plate interference surface 4-3 is formed by a stamping die to form a concave step surface.
  • the support plate interference surface 4-3 is located on the II plane, and the II plane is located on the I plane.
  • III plane, I plane and III plane are located on the upper surface and the lower surface of the metal support plate 4 respectively.
  • the establishment of the support plate interference surface 4-3 makes the optical switch not affected by the processing error of the rubber elastic ring 3, ensures the distance from the end surface of the ring-circle flanged wall 6-1 to the upper surface of the PCB board 8, and increases the distance of the switch. Reliability; at the same time, when the keycap 1 is at the lower limit position, the support plate interference surface 4-3 will be connected to the lower plate surface of the upper plate 6-3, and be limited to a height higher than the lower plate surface of the lower connecting portion 6-5 of the ring. position, greatly increasing the service life of the ring elastic support plate 6.
  • the reset body is composed of a rubber elastic ring 3, and the rubber elastic ring 3 is provided with an exhaust groove 3-1 on the elastic ring, a boss 3-2 on the elastic ring, a thin wall 3-3 of the air bag on the elastic ring, and a trigger on the elastic ring.
  • the ring-connected upper plate 6-3 is provided with a light-transmitting on-off part, and the light-transmitting on-off part is provided with a light-blocking part and a light-transmitting part; the light-transmitting on-off part and the ring elastic support plate 6 are stamped and formed by a mold;
  • the ring elastic support plate 6 is formed by a stamping die, and the ring elastic support plate 6 is composed of a ring connected upper plate 6-3, a ring round flange wall 6-1, a ring plate wall space 6-2, a ring connected upper plate 6-3, and a ring elastic
  • the through hole on 3 is formed, the light-transmitting part is a light-transmitting space, and
  • the ring elastic arm plate 6-4 and the ring lower connecting portion 6-5 have the same quantity and at least 2 are arranged; the ring elastic support plate 6 of a large key of a notebook keyboard such as a space bar etc. adopts the ring elastic arm plate 6-4 and the ring lower connection
  • the number of parts 6-5 is the same and 4 are set, the ring elastic support plate 6 of the standard keys such as numeric keys and letter keys adopts the ring elastic arm plate 6-4, and the number of the lower connecting parts 6-5 of the ring is the same and 3 are set, small keys
  • the ring elastic support plate 6 of function key (F key) adopts ring elastic arm plate 6-4, the number of connecting parts 6-5 under the ring is the same and 2 are set, and the ring connects the upper plate 6-3 to be provided with a conflicting face, touch The face is positioned at the lower surface of the upper plate 6-3 in the ring, and the connecting portion 6-5 and the ring flange wall 6-1 of the present embodiment have the same center; the upper
  • the ring elastic arm plate 6-4 corresponds to the position of the anti-membrane arm space 13-2 and the elastic ring arm space 3-6 respectively; the anti-membrane arm space 13-2, elastic ring The arm spaces 3-6 are capable of accommodating ring elastic arm plates 6-4, respectively.
  • the supporting arm space 4-2, the supporting connecting space 4-1, and the space in the supporting plate 4-4 are respectively connected with the ring elastic arm plate 6-4, the lower connecting part of the ring 6-5, the light-transmitting breaker or the ring
  • the position of the light-transmitting on-off part of the elastic support plate 6 is corresponding; the space 4-2 for the support receiving arm, the space 4-1 for the support connection, and the space 4-4 in the support plate can respectively accommodate the elastic arm plate 6-4 of the ring and the connecting part under the ring 6-5.
  • the light-transmitting on-off body or the light-transmitting on-off part of the ring elastic support plate 6; the rubber elastic ring 3, the waterproof membrane 13 and the light guide plate module 11 will support the receiving arm space 4-2 and the branch connection space 4- 1. Space 4-4 in the support plate is sealed.
  • the notebook keyboard is also provided with a waterproof membrane 13, the rubber elastic ring 3 is connected to the upper surface of the waterproof membrane 13, the waterproof membrane 13 is connected to the upper surface of the metal support plate 4, and the light guide plate module 11 is connected to the metal support.
  • the lower surface of the plate 4 is connected, and the ring elastic support plate 6 is connected with the upper surface of the light guide plate module 11 .
  • the waterproof film 13 is provided with a film-proof through hole 13-1 and a film-proof arm space 13-2; when the keycap 1 is in the upper limit position, the ring connecting the upper plate 6-3 of the ring elastic support plate 6 passes through the film-proof through hole 13-1 and is located above the waterproof membrane 13, and the ring elastic arm plate 6-4 is located in the membrane-proof arm space 13-2.
  • the light guide plate module 11 is provided with 101 blocking through holes 7-1, and the space surrounded by the blocking through holes 7-1 is the blocking action space 7-2.
  • the 101 blocking action spaces 7-2 on the light guide plate module 11 are connected;
  • the light guide plate module 11 is composed of a light guide plate 7, a PCB board 8,
  • the Led light source 9 and the photosensitive element 10 are composed of, wherein, the reflective film, the lower reflective film, the PCB board 8, and the photosensitive element 10 are not shown in the figure, and the upper and lower reflective films, the PCB
  • the board 8 adopts a thin PCB board, the module exhaust groove 11-1 is located between the light guide plate 7 and the PCB board, the module exhaust groove 11-1 is located on the lower reflective film or the module exhaust groove 11-1 is located on the reflective On the thin film arranged between the film and the PCB board (the surface is not shown in the figure), the PCB board 8 is located at the bottom layer, and
  • the rubber elastic ring 3 jacks up the keycap 1, and the keycap 1 is limited to the upper limit position; it should be ensured that: the rubber elastic ring 3 corresponds to the position of the anti-film through hole 13-1; the spring of the rubber elastic ring 3 The ring trigger boss 3-4 is aligned with the anti-membrane through hole 13-1 and the ring connecting upper plate 6-3.
  • the rubber elastic ring 3 lifts the keycap 1 to the upper limit position; taking a notebook keyboard with 101 key positions as an example, the stroke of the keycap 1 of the keyboard is 1.5mm, and the stroke of the ring elastic support plate 6 is 0.25mm, and the total height is 0.4mm; when the keycap 1 is displaced downward, the upward reset force of the keycap 1 in the first stroke is provided by the rubber elastic ring 3, and the upward reset force of the keycap 1 in the second stroke
  • the force is mainly provided by the ring elastic support plate 6; the first stroke of the keycap 1 is: the upper limit position of the keycap 1 to the elastic ring triggering the lower surface of the boss 3-4 of the rubber elastic ring 3 and the ring connecting the upper plate 6-3
  • the stroke during contact, the first stroke of this embodiment is about 1.25mm, and the second stroke is about 0.25mm.
  • the upward reset force of the keycap 1 in the first stroke is provided by the rubber elastic ring 3.
  • the first stroke is about 1.25mm
  • the downward displacement of the keycap 1 is about 1.25mm
  • the lower surface of the elastic ring trigger boss 3-4 of the rubber elastic ring 3 is in contact with the ring-connected upper plate 6-3.
  • the reset force of the rubber elastic ring 3 becomes the minimum;
  • the ring connecting upper plate 6-3 is pushed to move downward, and the ring elastic arm plate 6-4 produces elastic deformation;
  • the ring elastic arm plate 6-4 is pressed to the lowest position, the ring connecting upper plate 6-3 Pressed tightly against the support plate contact surface 4-3, the keycap 1 is located at the lower limit position, and the light blocking part disconnects the optical signal emitted by the light emitter from the optical path of the optical connector; when the external force is removed, it is mainly controlled by the ring elastic support plate
  • the ring elastic arm plate 6-4 of 6 provides an upward elastic force to reset the keycap 1 upward;
  • the upper boss 3-2 is provided with the exhaust groove 3-1 on the spring ring and the thin wall 3-3 of the spring air bag, and adopts: by setting the exhaust groove on the light guide plate module 11, the 101 on the light guide plate module 11 A blocking through hole 7-1 communicates; when one or several keycaps 1 were displaced downward, the inner space of one or several rubber elastic rings 3 was compressed, and the other 90 to 100 rubber elastic rings 3
  • the thin wall 3-3 of the spring ring airbag deforms upwards and discharges the air through the exhaust groove 3-1.
  • This invention uses a thin-walled 0.15mm-0.2mm thick elastic ring airbag Thin wall 3-3, and connects 101 sealed spaces, when one or several keycaps 1 are displaced downward, the thin wall 3-3 of the other 90 to 100 rubber elastic rings 3 deforms upward And the air is discharged through the exhaust groove 3-1. At the same time, when the external force is removed, the thin wall 3-3 of the elastic ring airbag deforms upwards to provide a reset elastic force.
  • the keycap 1 is displaced from the upper limit position to the lower limit position.
  • the volume of the inner space of the rubber elastic ring 3 is 15.90 cubic millimeters; the volume of the depressed inner space is 3.13 cubic millimeters;
  • the total exhaust of the rubber elastic ring 3 is 102.1 cubic millimeters, and there are 90 elastic ring airbag thin-walled 3-3 upward deformations of 89.1 cubic millimeters: at the same time, the spring
  • the first stroke of the keycap 1 is: the keycap 1 pushes the rubber elastic ring 3 from point a to point c
  • the second stroke of the keycap 1 is: the rubber elastic ring 3 of the keycap 1 moves from point c To point d
  • the ring elastic arm plate 6-4 of the ring elastic support plate 6 is from point c to point d
  • Downward displacement keycap 1 is from point a to point b
  • the reset elastic force of rubber elastic ring 3 increases to the maximum
  • keycap 1 continues to move downward
  • keycap 1 is from point b to point c
  • the reset elastic force of the rubber elastic ring 3 is inversely proportional to the displacement, and the reset elastic force of the rubber elastic ring 3 at point c is minimized
  • the spring ring trigger boss 3-4 of the rubber elastic ring 3 is in contact with the ring-connected upper plate 6-3
  • the keycap 1 continues Downward displacement, the ring elastic arm plate 6-4 of
  • the ring connecting upper plate 6-3 of the ring elastic support plate 6 is pushed to move downward, and the ring connecting upper plate 6-3 moves from point c to point d, and the reset elastic force produced by the ring elastic arm plate 6-4 resets the elastic force Proportional to the amount of displacement, at point d the ring is connected to the upper plate 6-3 and the lower surface of the boss 3-4 triggered by the elastic ring is reliably pressed against the upper plate surface of the support plate conflicting surface 4-3, and the ring elastic arm plate 6-
  • the return elastic force of 4 is increased to the maximum, and under the joint action of the return elastic force of the rubber elastic ring 3 and the return elastic force of the ring elastic arm plate 6-4, the rebound rate of the keycap 1 is >40%.
  • Reset body is made of rubber elastic ring 3, by reducing the height H1 size of boss 3-2 on the elastic ring of rubber elastic ring 3 and canceling the elastic ring contact 3-7 of rubber elastic ring 3, keycap 1 is lowered to During the lower limit position, the return elastic force of the rubber elastic ring 3 becomes smaller; compared with the prior art, the present invention reduces the larger extrusion deformation of the upper boss 3-2 of the elastic ring and the elastic wall of the elastic ring 3-9, The service life of the rubber spring ring 3 is greatly improved.
  • the upper boss 3-2 of the spring ring is squeezed by the keycap 1, and the elastic wall 3-9 of the spring ring is deformed to obtain a relatively large reset elastic force, so that the rebound rate of the keycap 1 is greater than 40%;
  • the present invention mainly makes the rebound rate of the keycap 1 >40% by the restoring elastic force of the ring elastic arm plate 6-4.
  • the reset body adopts the combination of the rubber elastic ring 3 and the ring elastic support plate 6. After the optimized design, the deformation of the rubber elastic ring 3 and the ring elastic support plate 6 is reduced during use, which greatly improves the rubber elastic ring 3 and the ring elastic support plate 6. service life.
  • the ring elastic support plate 6 of the prior art obtains a similar collapse feel, and the ring elastic arm plate 6-4 has a large amount of deformation. Still higher than the plane where the ring lower connecting portion 6-5 is located, the elastic force of the ring elastic support plate 6 of the present invention is proportional to the displacement, and does not require a similar collapsed feel, and the deformation of the ring elastic arm plate 6-4 is small and greatly The service life of the ring elastic support plate 6 is improved.
  • the metal support plate 4 is provided with a supporting arm space 4-2, a supporting connecting space 4-1, and a space 4-4 in the supporting plate through its surface, wherein the supporting arm space 4- 2 Connect the branch connection space 4-1 and the space 4-4 in the support plate, the number of the branch connection space 4-1 and the support containing arm space 4-2 is the same and at least 2 are set; the support containing arm space 4-2, the branch connection The space 4-1 and the space 4-4 in the support plate can respectively accommodate the ring elastic arm plate 6-4, the ring lower connection part 6-5, the light-transmitting on-off body or the light-transmitting on-off part of the ring elastic support plate 6;
  • the support plate 4 is provided with a support plate conflict surface 4-3, and the metal support plate 4 is provided with an I plane, an II plane, and a III plane, wherein the I plane and the III plane are respectively located on the upper surface and the lower surface of the metal support plate 4, and the II plane Located between I plane and III plane.
  • the support plate interference surface 4-3 is located outside the space 4-4 in the support plate and between the supporting arm space 4-2, the support plate interference surface 4-3 is located in the I plane, and the connection part under the ring
  • the lower plate surface of 6-5 is located in the II plane; the support plate conflict surface 4-3 is located in the I plane or at a position lower than the I plane, and the support plate conflict surface 4-3 is a part of the metal support plate 4.
  • the support plate interference surface 4-3 is located outside the space 4-4 of the support plate and is located in the space 4-2 of the support arm.
  • the support plate interference surface 4-3 is formed by a stamping die to form a concave shape. step surface.
  • the metal support plate 4 is thinned and a metal lower support plate 14 is connected to the lower surface of the metal support plate 4, wherein, the I plane is located on the upper surface of the metal support plate 4, and the III plane is located under the metal support plate 4.
  • the II plane is located between the I plane and the III plane.
  • the support plate interference surface 4-3 is located on the metal lower support plate 14, inside the space 4-4 in the support plate and below the supporting arm space 4-2.
  • the support plate interference surface 4-3 is located on the metal lower support plate 14, the support plate interference surface 4-3 is located inside the space 4-4 in the support plate and is located in the supporting arm space 4-2, the support plate The conflicting surface 4-3 is located on the upward stamping flange wall or the upward stamping and bending wall of the gold lower branch through hole 14-1 of the metal lower support plate 14, and the ring lower connection part 6-5 is connected to the metal lower support plate 14 connection on the board.
  • the ring elastic support plate 6 of the function key adopts the ring elastic arm plate 6-4, and the number of the lower connecting parts 6-5 is the same and 2 are set, and the ring connects the upper plate 6-3 is provided with a contact surface, and the contact surface is located on the lower surface of the ring connection upper plate 6-3.
  • the ring lower connection part 6-5 and the ring flange wall 6-1 have the same circle center; the ring connection upper plate 6-3 is the same as the center of the circle, and the ring elastic arm plate 6-4 is connected with the lower ring connecting portion 6-5, wherein one ring elastic arm plate 6-4 and the ring lower connecting portion 6-5 are connected to the other ring elastic arm plate 6 -4 and the lower connecting portion 6-5 are 180 degrees.
  • the elastic ring lower boss 3-5 of the rubber elastic ring 3 is provided with two elastic ring lower convex hulls 3-10, and the elastic ring lower convex hull 3-10 is provided with an elastic ring arm space 3-6;
  • the ring elastic support plate 6 Adopt 2 mutual 180 ring elastic arm plates 6-4, and adopt the boss 3-5 under the spring ring of the rubber spring ring 3 to be provided with 2 convex shells 3-10 under the spring ring, and the convex shell 3-10 under the spring ring Elastic ring arm space 3-6 is arranged on 10;
  • the function key small key that makes structure ultra-small also can use technology of the present invention as F key.
  • the light-transmitting touch panel 15 is a transparent plate, the light-transmitting touch panel 15 is connected to the keycap 1 in the light path, and when the keycap 1 moves downward, the upper boss of the elastic ring of the rubber elastic ring 3 The convex hull of 3-2 pushes the light-transmitting touch panel 15 to move downward, and the light-transmitting touch panel 15 pushes the ring-connected upper plate 6-3 to move downward.
  • the light guide plate module 11 is connected to the lower surface of the metal support plate (4, the metal support plate 4 is provided with a support plate shooting space 4-5 that runs through its surface, and the ring elastic support plate 6 is located on the support plate
  • the plate is shot into the space 4-5 and connected to the upper surface of the light guide plate module 11 through the lower ring connection part 6-5, wherein the ring lower connection part 6-5 is connected to form an integral closed ring;
  • the rubber elastic ring 3 is provided There are spring ring arm space 3-6, ring seal extension surface 3-11, spring ring upper boss 3-2, spring ring lower boss 3-5, wherein, the lower surface of spring ring lower boss 3-5 is provided with
  • the notebook keyboard is also provided with a metal lower support plate 14, the upper surface of the metal lower support plate 14 is connected to the lower surface of the metal support plate 4, and the lower surface of the metal lower support plate 14 is connected to the upper surface of the light guide plate 7,
  • the metal lower support plate 14 is provided with a gold lower support through hole 14-1 that runs through its surface, and the support plate conflicting surface 4-3 is located on the bending edge of the gold lower support through hole 14-1 or on the gold lower support through hole 14 On the flanging wall of -1, the support plate conflict surface 4-3 is higher than the upper plate surface of the metal lower support plate 14.
  • the light-transmitting on-off body is connected to the middle part of the ring elastic support plate 6, and the light-transmitting on-off body is provided with a light-blocking part and a light-transmitting part; the light-transmitting space is connected to the upper plate 6-3 by the ring
  • the set through hole is formed, and the light-transmitting on-off body is composed of a thin steel pipe 16 connected with the ring-connected upper plate 6-3, or composed of a light guide column 17 connected with the ring-connected upper plate 6-3, or composed of a ring-connected upper plate 6-3 connected lenses constitute, and the light guide column 17 is clad plastic optical fiber.
  • the circular flanged wall 6-1 of the switch blocking body 5 is provided with a circular flanged wall release groove 6-7 that runs through its board surface .

Landscapes

  • Push-Button Switches (AREA)

Abstract

一种采用光开关的笔记本键盘，包括键帽1、键支连结构2、复位体、金属支板4、光发器、光接器、导光板模组、开关阻断体5、电路片，其中，光发器发射的光信号通过导光板模组与光接器光路导通，当开关阻断体5被触发时，光接器检测到光信号的变化；开关阻断体5由透光通断体、环弹性支板6构成或由环弹性支板6、环弹性支板6上的透光通断部构成；本发明提供一种集薄型、密封一身的光开关键盘，本发明的技术方案使光开关键盘，手感更好、使用寿命更长，应用于PC键盘，特别适合薄型的笔记本键盘。

Description

一种采用光开关的笔记本键盘
优先权声明：权利要求1、权利要求4分别要求申请号为202111576013X，申请日为2021-12-21的权利要求28、权利要求31的优先权及相应的实施例。
技术领域
本发明涉及采用光开关的键盘，特别涉及装载在作为电子仪器的输入装置的键盘中的采用光开关的键盘的组成及结构。
背景技术
现有笔记本键盘的重要技术指标有：使用寿命、键盘的薄型化、键帽的回弹率>40％、防水效果、击打键时手感要好、键帽字符的发光亮度等；现有键盘的复位体普遍采用橡胶弹圈，“吉尼斯世界纪录”每分钟准确无误地敲下807个键！即每秒击打键盘13.45次，为满足键盘高速输入人群，计算机键盘有一个重要的技术指标：回弹率>40％。
现有光开关键盘详见PCT/CN2017/078887或详见2017800186784；参见图4(现有技术在原说明书中图的编号为图29)、现有光开关键盘由键帽(1)、键支连结构(2)、复位体、金属支板(4、开关阻断体5、导光板7、PCB板8、Led光源9、光敏元件10构成，其中，复位体是拱形复位体或弹簧或磁性体，拱形复位体由环弹性支板6或是橡胶弹圈3构成(橡胶弹圈3现仍大量应用计算机键盘上)；开关阻断体5位于橡胶弹圈3正下方，导光板模组11位于金属支板(4下方，电路片与金属支板4连接并位于金属支板4下方，拱形复位体位于键帽1与导光板模组11之间。
在金属支板4与开关阻断体5对应的位置，设置有贯穿金属支板4的支板中弹空间4-5，橡胶弹圈3上部有通孔--拱形透光通孔，开关阻断体5上部设置有透光部，拱形透光通孔与键帽1上的字符光路导通；拱形透光通孔与开关阻断体5的透光部光路导通。
现有光开关键盘详见PCT/CN2017/078887或详见2017800186784；参见图5(现有技术在原说明书中图的编号为图24、在开关阻断体5上方有环弹性支板6，环弹性支板6由有弹性的金属弹片构成，在环弹性支板6上设置有贯穿其板面的透光孔，在开关阻断体5下方有薄膜片12，薄膜片12有贯穿薄膜的阻断贯穿孔7-1，环弹性支板6位于开关阻断体5上方，在环弹性支板6下方设置开关阻断体5，并将开关阻断体5下方的阻断动作空间7-2封闭，在电路片的中部附近焊接有封装为贴片的Led光源9、封装为贴片的光敏元件10，Led光源9与光光敏元件10之间有接发空间，图中印有字符的薄膜(图中未表示)位于环弹性支板6上 方，本技术方案主要用于薄膜上的字符发光的薄膜键盘；环弹性支板6现仍大量应用于金属触点开关的薄膜键盘及遙控器上。
PCT/CN2017/078887或2017800186784的说明书与本发明相关的描述：
说明书中的[0097]导光板模组11的阻断动作空间7-2为封闭空间，成行的阻断动作空间7-2连通。成行的连通的阻断动作空间7-2通过通讯线与通讯线连接的通讯接口连通，通讯接口与外部连通或成行的连通的阻断动作空间7-2与有弹性的薄壁状的气袋连通。
说明书中的[0149]--[0151]阻断体2-1亦可为金属材料的金属弹片，光阻隔部2-2设置在有弹性的金属弹片上。
参见图6、图7、橡胶弹圈3由弹圈上凸台3-2弹圈上凸台3-2、弹圈下凸台3-5、弹圈触点3-7、弹圈下排气槽3-8、弹圈弹性壁3-9构成；为使橡胶弹圈3产生的回复力满足回弹率>40％，弹圈上凸台3-2弹圈上凸台3-2的H1尺寸及H2尺寸都设计比较大，键帽1接近下极限位时，弹圈上凸台3-2弹圈上凸台3-2的H1尺寸压缩，键帽1被下压至下极限位时，弹圈上凸台3-2弹圈上凸台3-2产生较大的弹性变形。
参见图9、键帽1图中未表示)位于上极限位时，键帽1位于a点，在外力作用下，键帽1向下位移，键帽1由a点至b点，橡胶弹圈3的复位弹力增加至最大，键帽1继续向下位移，键帽1由b点至c点，橡胶弹圈3的弹力与位移量的成反比；
键帽1至c点时，弹圈触点3-7刚与薄膜开关(图中未表示)接触，橡胶弹圈3的复位弹力由最大突变为最小，产生所谓崩塌手感，此段的弹力由弹圈弹性壁3-9产生形变提供；
键帽1向下位移，弹圈触点3-7开始触压薄膜开关图中未表示)而产生变形，键帽1至d点时，键帽1位于下极限位，键帽1挤压弹圈上凸台3-2弹圈上凸台3-2、弹圈触点3-7、弹圈弹性壁3-9产生严重挤压变形并产生较大的复位弹力，使键帽1的回弹率＞40％；橡胶弹圈3产生严重挤压变形，大幅降低了橡胶弹圈3的使用寿命。
参见图8、图10、环弹性支板6的弹力与位移的关系图与橡胶弹圈3的类似，也有类似的崩塌手感，只是无回弹率＞40％要求，环弹性支板6被压至最低位时产生严重变形，大幅降低了环弹性支板6的使用寿命。
现有光开关键盘存在的问题
1.键盘的薄型化是笔记本键盘的重要发展方向：
现有技术未能提出使键盘薄型化的技术方案；现有技术采用橡胶弹圈、开关阻断体的组合技术方案时，未能提出实现键盘的薄型化的技术方案；
2.使用寿命是笔记本键盘的重要技术指标：
①.现有技术的复位体采用现有键盘普遍采用的橡胶弹圈3的典型结构，现有的橡胶弹圈使用过程变形大(在键盘处于低位时，通过使橡胶弹圈产生挤压变形获取回弹率)，大幅降低了橡胶弹圈的使用寿命；
②.在实现键盘的薄型化前提下，开关阻断体5为金属弹片，在金属弹片上设置透光部(透光通孔)、阻光部后，使金属弹片的尺寸大于橡胶弹圈的尺寸，增加了密封光开关的难度；现有技术未能提出对光开关采用密封措施的具体技术方案；光开关不密封将大幅降低了光开关的使用寿命；键盘使用过程中，如茶水不小心进入光开关，严重影响光开关键盘的寿命，长时间使用时，尘埃的进入并不断积累也严重影响光开关键盘的寿命。
③.现有技术采用橡胶弹圈、开关阻断体的组合技术方案时，为实现键盘的薄型化，开关阻断体5为金属弹片时，现有技术未能提出金属弹片的透光技术方案，
3.为实现键盘的薄型化，开关阻断体5采用金属弹片，并键盘采用橡胶弹圈、金属弹片组合技术方案时，现有技术未能提出金属弹片的阻光部、透光部的具体技术方案；
发明内容
本发明的目的在于：本发明提供一种集薄型、密封一身的光开关键盘，特别是提供一种手感更好、使用寿命更长的光开关键盘。
一种采用光开关的笔记本键盘，包括键帽1、键支连结构2、复位体、金属支板4、光发器、光接器、导光板模组、开关阻断体5、电路片，其中，光发器发射的光信号通过导光板模组与光接器光路导通，当开关阻断体5被触发时，光接器检测到光信号的变化；
开关阻断体5由透光通断体、环弹性支板6构成或由环弹性支板6、环弹性支板6上的透光通断部构成；
环弹性支板6采用冲压模具成型，环弹性支板6由环连上板6-3、环弹性臂板6-4、环下连接部6-5构成，环连上板6-3所在平面高于环下连接部6-5所在平面，环连上板6-3、环下连接部6-5通过有弹性的环弹性臂板6-4连接，环连上板6-3的中部设置有透光空间。权利要求28
进一步的是：透光通断体与环弹性支板6的中部连接，透光通断体设置有阻光部、透光部；透光空间由环连上板6-3上设置的通孔构成，透光通断体由与环连上板6-3连接的薄形钢管构成或由与环连上板6-3连接的导光柱构成或由与环连上板6-3连接的透镜构成。
包括键帽1、键支连结构2、复位体、金属支板4、光发器、光接器、电路片、开关阻 断体5、导光板模组11，其中，光发器发射的光信号通过导光板模组与光接器光路导通，当开关阻断体5被触发时，光接器检测到光信号的变化；
开关阻断体5由透光通断体、环弹性支板6构成或由环弹性支板6、环弹性支板6上的透光通断部构成，其中，透光通断体、透光通断部均位于环弹性支板6中部，透光通断体、透光通断部均设置有阻光部、透光部；
环弹性支板6由环连上板6-3、环弹性臂板6-4、环下连接部6-5构成，其中，环连上板6-3所在平面高于环下连接部6-5所在平面，环连上板6-3、环下连接部6-5通过有弹性的最少两个环弹性臂板6-4连接，环连上板6-3的中部设置有透光空间；
复位体由I复位体、环弹性支板6构成，I复位体由磁性体构成或由橡胶弹圈3构成，I复位体将键帽1顶起，键帽1位于上极限位；键帽1向下位移时，键帽1在第一行程内的向上的复位力由I复位体提供，键帽1在第二行程内的向上的复位力主要由环弹性支板6提供；
使用时，在外力作用下，键帽1克服I复位体向上的力向下位移，键帽1向下位移一段距离后，环连上板6-3被推动向下位移，环弹性臂板6-4产生弹性变形；环弹性臂板6-4被压至最低位时，键帽1位于下极限位，阻光部使光发器发射的光信号与光接器的光路断开；外力去除时，主要由环弹性支板6的环弹性臂板6-4提供向上的弹力，使键帽1向上复位。
进一步的是：环连上板6-3设置有透光通断部，透光通断部设置有阻光部、透光部；透光通断部、环弹性支板6采用模具冲压成形，；阻光部由环圆翻边壁6-1构成，环圆翻边壁6-1采用冲压模具加工成型位于环连上板6-3上的通孔形成，透光部为透光空间，透光空间由环板壁空间6-2构成，环板壁空间6-2由环圆翻边壁6-1的环壁围成的空间构成。
进一步的是：复位体由橡胶弹圈3构成，通过减小橡胶弹圈3的弹圈上凸台3-2的高度H1尺寸并取消橡胶弹圈3的弹圈触点3-7，使键帽1下降至下极限位时，橡胶弹圈3的复位弹力变小；
键帽1位于下极限位时，环连上板6-3所在平面仍高于环下连接部6-5所在平面，从而使环连上板6-3由高位下降至低位时，环弹性臂板6-4产生的复位弹力与向下的位移量同向增大，使键帽1位于下极限位时，环弹性臂板6-4产生的复位弹力变大。
进一步的是：键帽1位于上极限位时，键帽1位于a点，在外力作用下，键帽1向下位移，键帽1由a点至b点，橡胶弹圈3的复位弹力增加至最大，键帽1继续向下位移，键帽1由b点至c点，橡胶弹圈3的复位弹力与位移量成反比；键帽1继续向下位移，环弹性臂板6-4被推动向下位移，键帽1由c点至d点，环弹性臂板6-4产生的复位弹力复位弹力与 位移量的成正比，在橡胶弹圈3的复位弹力、环弹性臂板6-4的复位弹力共同作用下，使键帽1的回弹率＞40％。
进一步的是：笔记本键盘还设置有防水膜13，橡胶弹圈3与防水膜13的上表面连接，防水膜13与金属支板4的上表面连接，导光板模组11与金属支板4的下表面连接，环弹性支板6与导光板模组11的上表面连接。
进一步的是：防水膜13上设置有防膜贯孔13-1及防膜臂空间13-2；键帽1处于上极限位时，环弹性支板6的环连上板6-3穿过防膜贯孔13-1并位于防水膜13上方，环弹性臂板6-4位于防膜臂空间13-2内。
进一步的是：环弹性支板6由环连上板6-3、环弹性臂板6-4、环下连接部6-5构成，环连上板6-3连接有透光通断体或环连上板6-3设置有透光通断部；金属支板4设置有贯穿其板面的支容纳臂空间4-2、支连接空间4-1、支板中空间4-4，其中，由支容纳臂空间4-2将支连接空间4-1、支板中空间4-4连通或由支容纳臂空间4-2将支连接空间4-1连通，支连接空间4-1与支容纳臂空间4-2数量相同并最少设置2个；
支容纳臂空间4-2、支连接空间4-1、支板中空间4-4能分别容纳环弹性臂板6-4、环下连接部6-5、透光通断体或环弹性支板6的透光通断部。
进一步的是：金属支板4设置有支板抵触面4-3，支板抵触面4-3位于支板中空间4-4外侧，并位于支容纳臂空间4-2之间或位于环弹性臂板6-4下方。
进一步的是：支板抵触面4-3是金属支板4一部分，支板抵触面4-3是采用冲压模具成型，形成下凹的台阶面，支板抵触面4-3位于II平面，II平面位于I平面及III平面之间，I平面及III平面分别位于金属支板4的上表面及下表面。
进一步的是：导光板模组11与金属支板4下表面连接，金属支板4设置有贯穿其板面的支板中弹空间4-5，环弹性支板6位于支板中弹空间4-5内并通过环下连接部6-5与导光板模组11的上表面连接，其中，环下连接部6-5连接成整体的封闭圆环；
橡胶弹圈3设置有弹圈臂空间3-6、环密封延伸面3-11、弹圈上凸台3-2、弹圈下凸台3-5，其中，弹圈下凸台3-5的下表面设置有向下延伸的最少两个弹圈下延凸台3-12，在弹圈下延凸台3-12之间设置有最少两个弹圈臂空间3-6，环密封延伸面3-11与呈封闭圆环的弹圈下凸台3-5的圆表面连接，环密封延伸面3-11的下表面位于弹圈下延凸台3-12的下表面上方；环密封延伸面3-11的下表面与环下连接部6-5的上表面密封连接，弹圈下延凸台3-12穿过环弹性支板6的环弹臂侧空间6-6与导光板模组11的上表面连接或与金属下支板14的上板面 的上表面连接。
进一步的是：笔记本键盘还设置有金属下支板14，金属下支板14的上板面与金属支板4的下板面连接，金属下支板14的下板面与导光板7的上板面连接，金属下支板14设置有贯穿其板面的金下支通孔14-1，支板抵触面4-3位于金下支通孔14-1的折弯边上或位于金下支通孔14-1的翻边壁上，支板抵触面4-3高于金属下支板14的上板面。
本发明的积极效果是：
本发明提供一种集薄型、密封一身的光开关键盘，本发明的技术方案使光开关键盘，手感更好、使用寿命更长，应用于PC键盘，特别适合薄型的笔记本键盘。
1.将环连上板6-3的通孔采用模具加工成型环圆翻边壁6-1、环板壁空间6-2简化了环弹性支板6的结构；
2.在环弹性支板6的中部的环连上板6-3成形阻光部、透光部，使光发器(采用minLED)发出的光直接入射透明的橡胶弹圈3，入射光经橡胶弹圈3散射后直接入射键的字符，采用本发明的键帽字符的发光亮度均匀且亮度大；
3.支板抵触面4-3的设立，使光开关不受橡胶弹圈3加工误差的影响，确保了环圆翻边壁6-1的端面至PCB板8上板面的距离，增加了开关的可靠性；同时，键帽1位于下极限位时，支板抵触面4-3将环连上板6-3的下板面，限制在高于环下连接部6-5的下板面的位置，大幅增加了环弹性支板6的使用寿命；
4.在键盘厚度增加0.05mm(防水膜方案)或键盘厚度不增加的前提下，实现了光开关的密封；
5.复位体采用橡胶弹圈3、环弹性支板6组合，优化设计后，橡胶弹圈3、环弹性支板6在使用过程中变形量减少，大幅提高了橡胶弹圈3、环弹性支板6使用寿命；
6.环弹性支板6采用2个互180的环弹性臂板6-4，并采用在橡胶弹圈3的弹圈下凸台3-5设置有2个弹圈下凸包3-10，弹圈下凸包3-10上设置有弹圈臂空间3-6；使结构超小的功能键(小键如F键)也能使用本发明的技术。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图。
图1是一种101个键位的笔记本键盘的主视图；
图2是图1的局部放大图；
图3是图2的一个键单元的局部立体图；
图4是图3的现有光开关键盘的一个键单元的爆炸图；
图5是现有技术的薄膜光开关采用环弹性支板6的爆炸立体图；
图6是现有技术的橡胶弹圈3的立体图；
图7是现有技术的橡胶弹圈3的主视图；
图8是现有技术的环弹性支板6的立体图；
图9是现有技术的橡胶弹圈3的力F与行程H的关系图及橡胶弹圈3在关键点位的变形图；
图10是现有技术的环弹性支板力F与行程H的关系图及金属锅仔片在关键点位的变形图；
图11是本发明的光开关键盘的一个键单元的爆炸图；
图12是图11的局部放大图；
图13是本发明的橡胶弹圈3的立体图；
图14是本发明的环弹性支板6的立体图；
图15是本发明的导光板模组11安装在金属支板4下表面的立体图；
图16是本发明的防水膜13与金属支板4的上表面连接后的立体图；
图17是本发明的橡胶弹圈3与防水膜13的上表面连接后的立体图；
图18是本发明的导光板模组11设置的排气槽的立体图；
图19是本发明的光开关键盘的一个键单元的主视图；
图20是图19的本发明的键帽1位于上极限位时的A-A剖视图；
图21是图19的本发明的键帽1位于下极限位时的A-A剖视图；
图22是图19的本发明的键帽1位于下极限位时的B-B剖视图；
图23是图21的局部放大图；
图24是图22的局部放大图；
图25是本发明的橡胶弹圈3的力F与行程H的关系图及橡胶弹圈3在关键点位的变形图；
图26是本发明的环弹性支板的力F与行程H的关系图及环弹性支板在关键点位的变形图；
图27是本发明的另一种结构的金属支板4的立体图；
图28是本发明的另一种结构的金属支板4的立体图；
图29是本发明的另一种结构的金属支板4的立体图；
图30是本发明的另一种结构的金属支板4的立体图；
图31是本发明的另一种结构的设置有金属下支板(14的金属支板4的的爆炸立体图；
图32是图31的金属支板4的立体图；
图33是本发明的另一种结构的设置有金属下支板14的金属支板4的的爆炸立体图；
图34是图33的金属支板4的立体图；
图35本发明的光开关键盘的一个采用2个环弹性臂板6-4的F键的一个键单元的爆炸图；
图36是图35的局部放大图；
图37是本发明的F键的橡胶弹圈3的立体图；
图38是本发明的F键的橡胶弹圈3的立体图；
图39是本发明的F键位于上极限位时的一个键单元的剖视图；
图40是本发明的F键位于下极限位时的一个键单元的剖视图；
图41是本发明的F键位于上极限位时的一个键单元的另一剖视图；
图42是本发明的另一结构的橡胶弹圈3与另一结构的4个臂的环弹性支板的爆炸主视图；
图43是42的主视图；
图44是图43的爆炸立体图；
图45是图44的配合的立体图；
图46是本发明的3个臂的环弹性支板6的橡胶弹圈3的立体图；
图47橡胶弹圈3与3个臂的环弹性支板6配合的立体图；
图48是采用图47的橡胶弹圈、环弹性支板，键位于上极限位时的一个键单元的剖视图；
图49、是图48的环弹性支板6，键位于下极限位时的一个键单元的剖视图；
图50是本发明的光开关体采用薄壁钢管的剖视图；
图51是本发明的光开关体采用有包层的塑料光纤的剖视图；
图52是本发明的另一种环弹性支板6的立体图。
附图名称总汇
键帽1，键支连结构2，橡胶弹圈3、弹圈上排气槽3-1、弹圈上凸台3-2、弹圈气囊薄壁3-3、弹圈触发凸台3-4、弹圈下凸台3-5、弹圈臂空间3-6、弹圈触点3-7、弹圈下排气槽3-8弹圈弹性壁3-9、环密封延伸面3-11、弹圈下延凸台3-11；金属支板4、支连接空间4-1、支容纳臂空间4-2、支板抵触面4-3、支板中空间4-4、支板中弹空间4-5；开关阻断体5，环弹性支板6、环圆翻边壁6-1、环板壁空间6-2、环连上板6-3、环弹性臂板6-4、环下连接部6-5、环弹臂侧空间6-6、环翻壁释放槽6-7；导光板7、阻断贯穿孔7-1、阻断动作空间7-2；电路片 为PCB板8，PCB板8，Led光源9，光敏元件10，导光板模组11、塑料片12，防水膜13、防膜贯孔13-1、防膜臂空间13-2，金属下支板14、金下支通孔14-1、透光触板15、、薄形钢管16、导光柱17。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
实施例1
如图11-图28、一种采用光开关的笔记本键盘，包括键帽1、键支连结构2、复位体、金属支板4、光发器、光接器、导光板模组、开关阻断体5、电路片，其中，光发器发射的光信号通过导光板模组与光接器光路导通，当开关阻断体5被触发时，光接器检测到光信号的变化；开关阻断体5由透光通断体、环弹性支板6构成或由环弹性支板6、环弹性支板6上的透光通断部构成；
环弹性支板6采用冲压模具成型，环弹性支板6由环连上板6-3、环弹性臂板6-4、环下连接部6-5构成，环连上板6-3所在平面高于环下连接部6-5所在平面，环连上板6-3、环下连接部6-5通过有弹性的环弹性臂板6-4连接，环连上板6-3的中部设置有透光空间。
在环弹性支板6的中部的环连上板6-3成形透光部，使光发器(采用minLED)发出的光直接入射透明的橡胶弹圈3，入射光经橡胶弹圈3散射后直接入射键的字符，采用本发明的键帽字符的发光亮度均匀且亮度大；其中，环连上板6-3所在平面高于环下连接部6-5所在平面，环连上板6-3、环下连接部6-5通过有弹性的最少两个环弹性臂板6-4连接，环连上板6-3的中部设置有透光空间，环下连接部6-5设置数量为最少两个；透光空间由环连上板6-3上贯穿板面的通孔围成的空间构成，透光通断体、透光通断部均位于环弹性支板6中部，透光通断体、透光通断部均设置有阻光部、透光部。
复位体是橡胶弹圈3，橡胶弹圈3与防水膜13的上表面连接，防水膜13与金属支板4的上表面连接，导光板模组11与金属支板4的下表面连接，环弹性支板6与导光板模组11的上表面连接；防水膜13上设置有防膜贯孔13-1及防膜臂空间13-2；键帽1处于上极限位时，环弹性支板6的环连上板6-3穿过防膜贯孔13-1并位于防水膜13上方，环弹性臂板6-4位于防膜臂空间13-2内；环弹性支板6由环连上板6-3、环弹性臂板6-4、环下连接部6-5构 成，环连上板6-3连接有透光通断体或环连上板6-3设置有透光通断部；复位体由I复位体、环弹性支板6构成，I复位体由磁性体构成或由橡胶弹圈3构成，I复位体将键帽1顶起，键帽1位于上极限位；键帽1向下位移时，键帽1在第一行程内的向上的复位力由I复位体提供，键帽1在第二行程内的向上的复位力主要由环弹性支板6提供；使用时，在外力作用下，键帽1克服I复位体向上的力向下位移，键帽1向下位移一段距离后，环连上板6-3被推动向下位移，环弹性臂板6-4产生弹性变形；环弹性臂板6-4被压至最低位时，键帽1位于下极限位，阻光部使光发器发射的光信号与光接器的光路断开；外力去除时，主要由环弹性支板6的环弹性臂板6-4提供向上的弹力，使键帽1向上复位。
如图11、图12、光开关键盘由键帽1、键支连结构2、复位体、金属支板4、光发器、光接器、导光板模组、开关阻断体5、电路片、防水膜13构成，其中，光发器发射的光信号通过导光板模组与光接器光路导通，当开关阻断体5被触发时，光接器检测到光信号的变化；其中，复位体是拱形复位体或弹簧或磁性体，拱形复位体由环弹性支板6或是橡胶弹圈3本实施例采用)橡胶弹圈3构成；开关阻断体5位于橡胶弹圈3正下方，导光板模组11位于金属支板4下方；开关阻断体5由环弹性支板6、环弹性支板6上的透光通断部构成。
如图12、防水膜13位于金属支板4上方并与金属支板4上表面粘接，防水膜13上设置有防膜贯孔13-1及防膜臂空间13-2；橡胶弹圈3与防膜贯孔13-1位置对应，橡胶弹圈3与防水膜13粘接；橡胶弹圈3、防水膜13将其下的支容纳臂空间4-2、支连接空间4-1、支板中空间4-4封闭；金属支板4设置有贯穿其板面的支容纳臂空间4-2、支连接空间4-1、支板中空间4-4，其中，由支容纳臂空间4-2将支连接空间4-1、支板中空间4-4连通，支连接空间4-1与支容纳臂空间4-2数量相同并最少设置2个；金属支板4设置有支板抵触面4-3，支板抵触面4-3位于支板中空间4-4外侧，并位于支容纳臂空间4-2之间或支板抵触面4-3位于环弹性臂板6-4下方。
支板抵触面4-3是金属支板4一部分，支板抵触面4-3是采用冲压模具成型，形成下凹的台阶面，支板抵触面4-3位于II平面，II平面位于I平面及III平面之间，I平面及III平面分别位于金属支板4的上表面及下表面。
支板抵触面4-3的设立，使光开关不受橡胶弹圈3加工误差的影响，确保了环圆翻边壁6-1的端面至PCB板8上板面的距离，增加了开关的可靠性；同时，键帽1位于下极限位时，支板抵触面4-3将环连上板6-3的下板面，限制在高于环下连接部6-5的下板面的位置，大幅增加了环弹性支板6的使用寿命。
如图13、复位体由橡胶弹圈3构成，橡胶弹圈3设置有弹圈上排气槽3-1、弹圈上凸台3-2、弹圈气囊薄壁3-3、弹圈触发凸台3-4、弹圈下凸台3-5、弹圈臂空间3-6。弹圈触点3-7。
如图14、环连上板6-3设置有透光通断部，透光通断部设置有阻光部、透光部；透光通断部、环弹性支板6采用模具冲压成形；环弹性支板6采用冲压模具成型，环弹性支板6由环连上板6-3、环圆翻边壁6-1、环板壁空间6-2、环连上板6-3、环弹性臂板6-4、环下连接部6-5、环弹臂侧空间6-6构成，其中，环圆翻边壁6-1采用冲压模具向下拉伸翻边位于环连上板6-3上的通孔形成，透光部为透光空间，透光空间由环板壁空间6-2构成，环板壁空间6-2由环圆翻边壁6-1的环壁围成的空间构成；将环连上板6-3的通孔采用模具加工成型环圆翻边壁6-1、环板壁空间6-2简化了环弹性支板6的结构。
环弹性臂板6-4、环下连接部6-5数量相同并最少设置2个；笔记本键盘的大键如空格键等的环弹性支板6采用环弹性臂板6-4、环下连接部6-5数量相同并设置4个，数字键、字母键等标准键的环弹性支板6采用环弹性臂板6-4、环下连接部6-5数量相同并设置3个，小键如功能键(F键)的环弹性支板6采用环弹性臂板6-4、环下连接部6-5数量相同并设置2个，环连上板6-3上设置有抵触面部，触面部位于环连上板6-3的下表面，本实施例的环下连接部6-5、环圆翻边壁6-1同圆心；环连上板6-3同圆心。
如图12、图15-图17、应确保：环弹性臂板6-4分别与防膜臂空间13-2、弹圈臂空间3-6位置对应；防膜臂空间13-2、弹圈臂空间3-6能分别容纳环弹性臂板6-4。
应确保：支容纳臂空间4-2、支连接空间4-1、支板中空间4-4分别与环弹性臂板6-4、环下连接部6-5、透光通断体或环弹性支板6的透光通断部位置对应；支容纳臂空间4-2、支连接空间4-1、支板中空间4-4能分别容纳环弹性臂板6-4、环下连接部6-5、透光通断体或环弹性支板6的透光通断部；橡胶弹圈3、防水膜13及导光板模组11将支容纳臂空间4-2、支连接空间4-1、支板中空间4-4密封。
如图12、图16、笔记本键盘还设置有防水膜13，橡胶弹圈3与防水膜13的上表面连接，防水膜13与金属支板4的上表面连接，导光板模组11与金属支板4的下表面连接，环弹性支板6与导光板模组11的上表面连接。
防水膜13上设置有防膜贯孔13-1及防膜臂空间13-2；键帽1处于上极限位时，环弹性支板6的环连上板6-3穿过防膜贯孔13-1并位于防水膜13上方，环弹性臂板6-4位于防膜臂空间13-2内。
如图18、以101键位的键盘为例，导光板模组11设置有101个阻断贯穿孔7-1，阻断贯穿孔7-1围成的空间为阻断动作空间7-2，通过在导光板模组11设置模组排气槽11-1，将导光板模组11上的101个阻断动作空间7-2连通；导光板模组11由导光板7、PCB板8、Led光源9、光敏元件10构成，其中，反射膜、下反射膜、PCB板8、光敏元件10图中未表面，在导光板7的上下板面分别设置有上反射膜、下反射膜，PCB板8采用薄型的PCB板，模组排气槽11-1位于导光板7与PCB板之间，模组排气槽11-1位于下反射膜上或模组排气槽11-1位于反射膜与PCB板之间设置的薄膜上(图中未表面)，PCB板8位于最底层，阻断贯穿孔7-1贯穿上反射膜、下反射膜。
如图19、橡胶弹圈3将键帽1顶起，并键帽1被限制在上极限位；应确保：橡胶弹圈3与防膜贯孔13-1位置对应；橡胶弹圈3的弹圈触发凸台3-4与防膜贯孔13-1、环连上板6-3位置对准。
如图19--图24、橡胶弹圈3将键帽1顶起至上极限位；以101个键位的笔记本键盘为例，键盘的键帽1行程为1.5mm，环弹性支板6的行程为0.25mm，总高度为0.4mm；键帽1向下位移时，键帽1在第一行程内的向上的复位力由橡胶弹圈3提供，键帽1在第二行程内的向上的复位力主要由环弹性支板6提供；键帽1的第一行程为:键帽1上极限位至橡胶弹圈3的弹圈触发凸台3-4的下表面与环连上板6-3接触时的行程，本实施例的第一行程约为1.25mm，第二行程约为0.25mm。
使用时，在外力作用下，键帽1向下位移时，键帽1在第一行程内的向上的复位力由橡胶弹圈3提供，第一行程约1.25mm，键帽1向下位移约1.25mm时，橡胶弹圈3的弹圈触发凸台3-4的下表面与环连上板6-3接触，此时，橡胶弹圈3的复位力变为最小；继续向下位移，在第二行程内，环连上板6-3被推动向下位移，环弹性臂板6-4产生弹性变形；环弹性臂板6-4被压至最低位时，环连上板6-3被紧压在支板抵触面4-3，键帽1位于下极限位，阻光部使光发器发射的光信号与光接器的光路断开；外力去除时，主要由环弹性支板6的环弹性臂板6-4提供向上的弹力，使键帽1向上复位；
应确保：键帽1位于下极限位时，环连上板6-3被弹圈触发凸台3-4的下表面可靠压在支板抵触面4-3的上板面；应确保：键帽1位于下极限位时，支板抵触面4-3将环连上板6-3的下板面，限制在高于环下连接部6-5的下板面的位置。
键帽1向下位移时，橡胶弹圈3的内空间被压缩，由于各光开关的空间被密封，键帽1下的阻力非常大，为解决此问题，首先在橡胶弹圈3的弹圈上凸台3-2设置弹圈上排气槽 3-1、弹圈气囊薄壁3-3，并采用：通过在导光板模组11设置排气槽，将导光板模组11上的101个阻断贯穿孔7-1连通；当其中的一个或几个键帽1向下位移时，一个或几个橡胶弹圈3的内空间被压缩，其它90个至100个橡胶弹圈3的弹圈气囊薄壁3-3向上变形并通过排气槽3-1将空气排出。
由于笔记本键盘采用0.1mm厚FPC排线与主板连接；光开关的空间被密封后，无法采用现有技术通过usb线缆排气,本发眀采用薄壁的0.15mm-0.2mm厚弹圈气囊薄壁3-3，并将101个密封空间连通,当当其中的一个或几个键帽1向下位移时，其它90个至100个橡胶弹圈3的弹圈气囊薄壁3-3向上变形并通过排气槽3-1将空气排出，同时,外力去除时,弹圈气囊薄壁3-3向上变形提供了复位弹力。
如图20-图24、键帽1由上极限位位移至下极限位，经仿真测算：橡胶弹圈3的内空间的体积为15.90立方毫米；压下的内空间的体积为3.13立方毫米；键帽1压下时，一个橡胶弹圈3的排气12.77立方毫米；弹圈气囊薄壁3-3向上变形弹圈气囊薄壁3-3向上变形0.32mm,弹圈气囊薄壁3-3体积彭胀＝0.94立方毫米；假设同时有8个键被按下，橡胶弹圈3的总排气102.1立方毫米，有90个弹圈气囊薄壁3-3向上变形89.1立方毫米：同时，弹圈弹性壁3-9向外变形0.01mm时，橡胶弹圈3向外变形体积＝0.30立方毫米，90个至100个橡胶弹圈3向外变形体积：27立方毫米--30立方毫米，两项合计变形体积约119立方毫米。
如图25、图26、键帽1在第一行程为：键帽1推动橡胶弹圈3由a点至c点，键帽1在第二行程为：键帽1橡胶弹圈3由c点至d点，同时，环弹性支板6的环弹性臂板6-4由c点至d点；键帽1位于上极限位时，键帽1位于a点，在外力作用下，键帽1向下位移，键帽1由a点至b点，于b点橡胶弹圈3的复位弹力增加至最大，键帽1继续向下位移，键帽1由b点至c点，橡胶弹圈3的复位弹力与位移量成反比，于c点橡胶弹圈3的复位弹力減至最小；橡胶弹圈3的弹圈触发凸台3-4与环连上板6-3接触，键帽1继续向下位移，环弹性支板6的环弹性臂板6-4被推动向下位移，键帽1由c点至d点，橡胶弹圈3的复位弹力略有增大。
如图26、环弹性支板6的环连上板6-3被推动向下位移，环连上板6-3由c点至d点，环弹性臂板6-4产生的复位弹力复位弹力与位移量的成正比，于d点环连上板6-3被弹圈触发凸台3-4的下表面可靠压在支板抵触面4-3的上板面,环弹性臂板6-4的复位弹力增加至最大，在橡胶弹圈3的复位弹力、环弹性臂板6-4的复位弹力共同作用下，使键帽1的回弹率＞40％。
复位体由橡胶弹圈3构成，通过减小橡胶弹圈3的弹圈上凸台3-2的高度H1尺寸并取消橡胶弹圈3的弹圈触点3-7，使键帽1下降至下极限位时,橡胶弹圈3的复位弹力变小；，与现有技术相比，本发明减少弹圈上凸台3-2、弹圈弹性壁3-9的较大的挤压变形，大幅提升了橡胶弹圈3的使用寿命。
现有技术通过键帽1挤压弹圈上凸台3-2、弹圈弹性壁3-9产生较大的变形，获取较大的复位弹力，使键帽1的回弹率＞40％；本发明主要由环弹性臂板6-4的复位弹力，使键帽1的回弹率＞40％。
复位体采用橡胶弹圈3、环弹性支板6组合，优化设计后，橡胶弹圈3、环弹性支板6在使用过程中变形量减少，大幅提高了橡胶弹圈3、环弹性支板6使用寿命。
应确保：键帽1位于下极限位时，环连上板6-3所在平面仍高于环下连接部6-5所在平面，从而使环连上板6-3由高位下降至低位时，环弹性臂板6-4产生的复位弹力与向下的位移量同向增大，使键帽1位于下极限位时，环弹性臂板6-4产生的复位弹力变大。
现有技术的环弹性支板6为获取类似的崩塌手感，环弹性臂板6-4产生变形量较大，本发明:键帽1位于下极限位时，环连上板6-3所在平面仍高于环下连接部6-5所在平面，本发明的的环弹性支板6弹力与位移的成正比，不需要类似的崩塌手感，环弹性臂板6-4产生变形量较小，大幅提升了环弹性支板6的使用寿命。
如图27-图34、金属支板4设置有贯穿其板面的支容纳臂空间4-2、支连接空间4-1、支板中空间4-4，其中，由支容纳臂空间4-2将支连接空间4-1、支板中空间4-4连通，支连接空间4-1与支容纳臂空间4-2数量相同并最少设置2个；支容纳臂空间4-2、支连接空间4-1、支板中空间4-4能分别容纳环弹性臂板6-4、环下连接部6-5、透光通断体或环弹性支板6的透光通断部；金属支板4设置有支板抵触面4-3，金属支板4设置有I平面、II平面、III平面，其中，I平面及III平面分别位于金属支板4的上表面及下表面，II平面位于I平面及III平面之间。
如图27、图28、支板抵触面4-3位于支板中空间4-4外侧并位于支容纳臂空间4-2之间，支板抵触面4-3位于I平面，环下连接部6-5的下板面位于II平面；支板抵触面4-3位于I平面或位于低于I平面的位置，支板抵触面4-3是金属支板4一部分。
如图29、图30、支板抵触面4-3位于支板中空间4-4外侧并位于支容纳臂空间4-2，支板抵触面4-3是采用冲压模具成型，形成下凹的台阶面。
如图31--图34、减薄金属支板4并在金属支板4下板面连接一张金属下支板14，其中， I平面位于金属支板4的上表面,III平面位于金属下支板14的下表面，II平面位于I平面及III平面之间。
如图31、图32、支板抵触面4-3位于金属下支板14上，位于支板中空间4-4内侧并位于支容纳臂空间4-2下方。
如图33、图34、支板抵触面4-3位于金属下支板14上，支板抵触面4-3位于支板中空间4-4内侧并位于支容纳臂空间4-2，支板抵触面4-3位于金属下支板14的金下支通孔14-1的向上的冲压翻边壁上或向上的冲压折弯壁上，环下连接部6-5与金属下支板14上板面连接。
实施例2
如图35--图41、功能键(小键如F键)的环弹性支板6采用环弹性臂板6-4、环下连接部6-5数量相同并设置2个，环连上板6-3上设置有抵触面部，触面部位于环连上板6-3的下表面，本实施例的环下连接部6-5、环圆翻边壁6-1同圆心；环连上板6-3同圆心，环弹性臂板6-4与环下连接部6-5连接在一起，其中一个环弹性臂板6-4及环下连接部6-5与另一个环弹性臂板6-4及环下连接部6-5呈180度。
橡胶弹圈3的弹圈下凸台3-5设置有2个弹圈下凸包3-10，弹圈下凸包3-10上设置有弹圈臂空间3-6；环弹性支板6采用2个互180的环弹性臂板6-4，并采用在橡胶弹圈3的弹圈下凸台3-5设置有2个弹圈下凸包3-10，弹圈下凸包3-10上设置有弹圈臂空间3-6；使结构超小的功能键小键如F键也能使用本发明的技术。
如图39--图41、透光触板15为透明的板状，透光触板15与键帽1光路导通，键帽1向下位移时，橡胶弹圈3的弹圈上凸台3-2的凸包推动透光触板15向下移动，透光触板15推动环连上板6-3向下移动。
其余与实施例1同。
实施例3
如图42--图49、导光板模组11与金属支板(4下表面连接，金属支板4设置有贯穿其板面的支板中弹空间4-5，环弹性支板6位于支板中弹空间4-5内并通过环下连接部6-5与导光板模组11的上表面连接，其中，环下连接部6-5连接成整体的封闭圆环；橡胶弹圈3设置有弹圈臂空间3-6、环密封延伸面3-11、弹圈上凸台3-2、弹圈下凸台3-5，其中，弹圈下凸台3-5的下表面设置有向下延伸的最少两个弹圈下延凸台3-12，在弹圈下延凸台3-12之间设置有最少两个弹圈臂空间3-6，环密封延伸面3-11与呈封闭圆环的弹圈下延凸台3-12的板面连接，环密封延伸面3-11的下表面位于弹圈下延凸台3-12的下表面上方；环密封延伸面3-11的下 表面与环下连接部6-5的上表面密封连接，弹圈下延凸台3-12穿过环弹性支板6的环弹臂侧空间6-6与导光板模组11的上表面连接。
笔记本键盘还设置有金属下支板14，金属下支板14的上板面与金属支板4的下板面连接，金属下支板14的下板面与导光板7的上板面连接，金属下支板14设置有贯穿其板面的金下支通孔14-1，支板抵触面4-3位于金下支通孔14-1的折弯边上或位于金下支通孔14-1的翻边壁上，支板抵触面4-3高于金属下支板14的上板面。本技术方案在键盘厚度不增加的前提下，实现了光开关的密封。
其余与实施例1同。
实施例4
如图50--图51、透光通断体与环弹性支板6的中部连接，透光通断体设置有阻光部、透光部；透光空间由环连上板6-3上设置的通孔构成，透光通断体由与环连上板6-3连接的薄形钢管16构成或由与环连上板6-3连接的导光柱17构成或由与环连上板6-3连接的透镜构成，导光柱17是有包层的塑料光纤。
其余与实施例1同。
实施例5
如图52、为改善环圆翻边壁6-1的翻边工先，开关阻断体5的环圆翻边壁6-1上设置有贯穿其板面的环翻壁释放槽6-7。
其余与实施例1同。
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在发明的保护范围之内。

Claims (14)

  1. 一种采用光开关的笔记本键盘，包括键帽(1)、键支连结构(2)、复位体、金属支板(4)、光发器、光接器、导光板模组、开关阻断体(5)、电路片，其中，光发器发射的光信号通过导光板模组与光接器光路导通，当开关阻断体(5)被触发时，光接器检测到光信号的变化；
    其特征是：所述开关阻断体(5)由透光通断体、环弹性支板(6)构成或由环弹性支板(6)、环弹性支板(6)上的透光通断部构成；
    所述环弹性支板(6)采用冲压模具成型，所述环弹性支板(6)由环连上板(6-3)、环弹性臂板(6-4)、环下连接部(6-5)构成，所述环连上板(6-3)所在平面高于所述环下连接部(6-5)所在平面，所述环连上板(6-3)、所述环下连接部(6-5)通过有弹性的所述环弹性臂板(6-4)连接，所述环连上板(6-3)的中部设置有透光空间。
  2. 如权利要求1所述的一种采用光开关的笔记本键盘，其特征是：所述透光通断体与所述环弹性支板(6)的中部连接，所述透光通断体设置有阻光部、透光部；
    所述透光空间由所述环连上板(6-3)上设置的通孔构成，所述透光通断体由与所述环连上板(6-3)连接的薄形钢管构成或由与所述环连上板(6-3)连接的导光柱构成或由与所述环连上板(6-3)连接的透镜构成。
  3. 一种采用光开关的笔记本键盘，包括键帽(1)、键支连结构(2)、复位体、金属支板(4)、光发器、光接器、电路片、开关阻断体(5)、导光板模组(11)，其中，光发器发射的光信号通过导光板模组与光接器光路导通，当开关阻断体(5)被触发时，光接器检测到光信号的变化；其特征是：所述开关阻断体(5)由透光通断体、环弹性支板(6)构成或由环弹性支板(6)、环弹性支板(6)上的透光通断部构成，其中，所述透光通断体、所述透光通断部均位于所述环弹性支板(6)中部，所述透光通断体、透光通断部均设置有阻光部、透光部；
    所述环弹性支板(6)由环连上板(6-3)、环弹性臂板(6-4)、环下连接部(6-5)构成，其中，所述环连上板(6-3)所在平面高于所述环下连接部(6-5)所在平面，所述环连上板(6-3)、所述环下连接部(6-5)通过有弹性的最少两个所述环弹性臂板(6-4)连接，所述环连上板(6-3)的中部设置有透光空间；
    所述复位体由I复位体、所述环弹性支板(6)构成，所述I复位体由磁性体构成或由橡胶弹圈(3)构成，所述I复位体将所述键帽(1)顶起，所述键帽(1)位于上极限位；所述键帽(1)向下位移时，所述键帽(1)在第一行程内的向上的复位力由I复位体提供，所述键帽(1)在第二行程内的向上的复位力主要由所述环弹性支板(6)提供；
    使用时，在外力作用下，所述键帽(1)克服I复位体向上的力向下位移，所述键帽(1)向下位移一段距离后，所述环连上板(6-3)被推动向下位移，所述环弹性臂板(6-4)产生弹性变形；所述环弹性臂板(6-4)被压至最低位时，所述键帽(1)位于下极限位，所述阻光部使所述光发器发 射的光信号与所述光接器的光路断开；外力去除时，主要由所述环弹性支板(6)的所述环弹性臂板(6-4)提供向上的弹力，使所述键帽(1)向上复位。
  4. 如权利要求1或3的一种采用光开关的笔记本键盘，其特征是：所述环连上板(6-3)设置有透光通断部，所述透光通断部设置有阻光部、透光部；所述透光通断部、所述环弹性支板(6)采用模具冲压成形；所述阻光部由环圆翻边壁(6-1)构成，所述环圆翻边壁(6-1)采用冲压模具加工成型位于环连上板(6-3)上的通孔形成，所述透光部为所述透光空间，所述透光空间由环板壁空间(6-2)构成，所述环板壁空间(6-2)由所述环圆翻边壁(6-1)的环壁围成的空间构成。
  5. 如权利要求1或3所述的一种采用光开关的笔记本键盘，其特征是：所述复位体由橡胶弹圈(3)构成，通过减小橡胶弹圈(3)的弹圈上凸台(3-2)的高度H1尺寸并取消橡胶弹圈(3)的弹圈触点(3-7)，使所述键帽(1)下降至下极限位时，所述橡胶弹圈(3)的复位弹力变小；
    所述键帽(1)位于下极限位时，所述环连上板(6-3)所在平面仍高于所述环下连接部(6-5)所在平面，从而使所述环连上板(6-3)由高位下降至低位时，所述环弹性臂板(6-4)产生的复位弹力与向下的位移量同向增大，使所述键帽(1)位于下极限位时，所述环弹性臂板(6-4)产生的复位弹力变大。
  6. 如权利要求3或5所述的一种采用光开关的笔记本键盘，其特征是：所述键帽(1)位于上极限位时，所述键帽(1)位于a点，在外力作用下，所述键帽(1)向下位移，所述键帽(1)由a点至b点，所述橡胶弹圈(3)的复位弹力增加至最大，所述键帽(1)继续向下位移，所述键帽(1)由b点至c点，所述橡胶弹圈(3)的复位弹力与位移量成反比；所述键帽(1)继续向下位移，所述环弹性臂板(6-4)被推动向下位移，所述键帽(1)由c点至d点，所述环弹性臂板(6-4)产生的复位弹力复位弹力与位移量的成正比，在所述橡胶弹圈(3)的复位弹力、所述环弹性臂板(6-4)的复位弹力共同作用下，使所述键帽(1)的回弹率＞40％。
  7. 如权利要求1或3所述的一种采用光开关的笔记本键盘，其特征是：所述笔记本键盘还设置有防水膜(13)，所述橡胶弹圈(3)与所述防水膜(13)的上表面连接，所述防水膜(13)与所述金属支板(4)的上表面连接，导光板模组(11)与金属支板(4)的下表面连接，所述环弹性支板(6)与导光板模组(11)的上表面连接。
  8. 如权利要求7所述的一种采用光开关的笔记本键盘，其特征是：所述防水膜(13)上设置有防膜贯孔(13-1)及防膜臂空间(13-2)；所述键帽1处于上极限位时，所述环弹性支板(6)的环连上板(6-3)穿过防膜贯孔(13-1)并位于防水膜(13)上方，环弹性臂板(6-4)位于防膜臂空间(13-2)内。
  9. 如权利要求1或3或8所述的一种采用光开关的笔记本键盘，其特征是：所述环弹性支板(6)由环连上板(6-3)、环弹性臂板(6-4)、环下连接部(6-5)构成，所述环连上板(6-3)连接有透光通断体或所述环连上板(6-3)设置有透光通断部；所述金属支板(4)设置有贯穿其板面的支容 纳臂空间(4-2)、支连接空间(4-1)、支板中空间(4-4)，其中，由支容纳臂空间(4-2)将支连接空间(4-1)、支板中空间(4-4)连通或由支容纳臂空间(4-2)将支连接空间(4-1)连通，支连接空间(4-1)与支容纳臂空间(4-2)数量相同并最少设置2个；
    所述支容纳臂空间(4-2)、所述支连接空间(4-1)、支板中空间(4-4)能分别容纳所述环弹性臂板(6-4)、所述环下连接部(6-5)、透光通断体或环弹性支板(6)的透光通断部。
  10. 如权利要求9所述的一种采用光开关的笔记本键盘，其特征是：所述金属支板(4)设置有支板抵触面(4-3)，支板抵触面(4-3)位于支板中空间(4-4)外侧，并位于支容纳臂空间(4-2)之间或位于环弹性臂板(6-4)下方。
  11. 如权利要求9所述的一种采用光开关的笔记本键盘，其特征是：所述支板抵触面(4-3)是所述金属支板(4)一部分，所述支板抵触面(4-3)是采用冲压模具成型，形成下凹的台阶面，所述支板抵触面(4-3)位于II平面，所述II平面位于I平面及III平面之间，所述I平面及III所述平面分别位于金属支板(4)的上表面及下表面。
  12. 如权利要求1或3所述的一种采用光开关的笔记本键盘，其特征是：导光板模组(11)与金属支板(4)下表面连接，金属支板(4)设置有贯穿其板面的支板中弹空间(4-5)，所述环弹性支板(6)位于支板中弹空间(4-5)内并通过环下连接部(6-5)与导光板模组(11)的上表面连接，其中，环下连接部(6-5)连接成整体的封闭圆环；
    橡胶弹圈(3)设置有弹圈臂空间(3-6)、环密封延伸面(3-11)、弹圈上凸台(3-2)、弹圈下凸台(3-5)，其中，弹圈下凸台(3-5)的下表面设置有向下延伸的最少两个弹圈下延凸台(3-12)，在弹圈下延凸台(3-12)之间设置有最少两个弹圈臂空间(3-6)，环密封延伸面(3-11)与呈封闭圆环的弹圈下凸台(3-5)的圆表面连接，环密封延伸面(3-11)的下表面位于弹圈下延凸台(3-12)的下表面上方；
    环密封延伸面(3-11)的下表面与环下连接部(6-5)的上表面密封连接，弹圈下延凸台(3-12)穿过环弹性支板(6)的环弹臂侧空间(6-6))与导光板模组(11)的上表面连接或与金属下支板(14)的上板面的上表面连接。
  13. 如权利要求9或12所述的一种采用光开关的笔记本键盘，其特征是：所述笔记本键盘还设置有金属下支板(14)，所述金属下支板(14)的上板面与所述金属支板(4)的下板面连接，所述金属下支板(14)的下板面与所述导光板7的上板面连接，所述金属下支板(14)设置有贯穿其板面的金下支通孔(14-1)，所述支板抵触面(4-3)位于金下支通孔(14-1)的折弯边上或位于金下支通孔(14-1)的翻边壁上，所述支板抵触面(4-3)高于所述金属下支板(14)的上板面。
  14. 一种采用光开关的笔记本键盘，包括键帽(1)、键支连结构(2)、复位体、金属支板(4)、光发器、光接器、导光板模组、开关阻断体(5)、电路片，其中，光发器发射的光信号通过导 光板模组与光接器光路导通，当开关阻断体(5)被触发时，光接器检测到光信号的变化；
    其特征是：所述复位体是所述橡胶弹圈(3)，所述橡胶弹圈(3)与所述防水膜(13)的上表面连接，所述防水膜(13)与所述金属支板(4)的上表面连接，导光板模组(11)与金属支板(4)的下表面连接，所述环弹性支板(6)与导光板模组(11)的上表面连接；
    所述防水膜(13)上设置有防膜贯孔(13-1)及防膜臂空间(13-2)；所述键帽1处于上极限位时，所述环弹性支板(6)的环连上板(6-3)穿过防膜贯孔(13-1)并位于防水膜(13)上方，环弹性臂板(6-4)位于防膜臂空间(13-2)内；
    所述环弹性支板(6)由环连上板(6-3)、环弹性臂板(6-4)、环下连接部(6-5)构成，所述环连上板(6-3)连接有透光通断体或所述环连上板(6-3)设置有透光通断部；
    所述金属支板(4)设置有贯穿其板面的支容纳臂空间(4-2)、支连接空间(4-1)、支板中空间(4-4)，其中，由支容纳臂空间(4-2)将支连接空间(4-1)、支板中空间(4-4)连通，支连接空间(4-1)与支容纳臂空间(4-2)数量相同并最少设置2个支板中空间(4-4)；
    所述支容纳臂空间(4-2)、所述支连接空间(4-1)、支板中空间(4-4)能分别容纳所述环弹性臂板(6-4)、所述环下连接部(6-5)、透光通断体或环弹性支板(6)的透光通断部；
    所述金属支板(4)设置有支板抵触面(4-3)，支板抵触面(4-3)位于支板中空间(4-4)外侧并位于支容纳臂空间(4-2)之间，支板抵触面(4-3)位于II平面，II平面位于I平面及III平面之间，I平面及III平面分别位于金属支板(4)的上表面及下表面；
    所述支板抵触面(4-3)是所述金属支板(4)一部分，所述支板抵触面(4-3)是采用冲压模具成型，形成下凹的台阶面。
PCT/CN2022/140345 2021-12-21 2022-12-20 一种采用光开关的笔记本键盘 WO2023116690A1 (zh)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201655611U (zh) * 2010-03-18 2010-11-24 苏州朗博电子科技有限公司 电脑键盘
US7855715B1 (en) * 2005-07-27 2010-12-21 James Harrison Bowen Switch with depth and lateral articulation detection using optical beam
CN109478887A (zh) * 2016-03-30 2019-03-15 陈�峰 一种有阻断体及阻断动作空间的光开关装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7855715B1 (en) * 2005-07-27 2010-12-21 James Harrison Bowen Switch with depth and lateral articulation detection using optical beam
CN201655611U (zh) * 2010-03-18 2010-11-24 苏州朗博电子科技有限公司 电脑键盘
CN109478887A (zh) * 2016-03-30 2019-03-15 陈�峰 一种有阻断体及阻断动作空间的光开关装置

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