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WO2018184347A1 - 剪刀脚结构按键及其开关装置，及应用该按键的键盘 - Google Patents

剪刀脚结构按键及其开关装置，及应用该按键的键盘 Download PDF

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Publication number
WO2018184347A1
WO2018184347A1 PCT/CN2017/100263 CN2017100263W WO2018184347A1 WO 2018184347 A1 WO2018184347 A1 WO 2018184347A1 CN 2017100263 W CN2017100263 W CN 2017100263W WO 2018184347 A1 WO2018184347 A1 WO 2018184347A1
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WO
WIPO (PCT)
Prior art keywords
foot
scissor
ram
disposed
foot structure
Prior art date
Application number
PCT/CN2017/100263
Other languages
English (en)
French (fr)
Inventor
李建平
Original Assignee
东莞市名键电子科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 东莞市名键电子科技有限公司 filed Critical 东莞市名键电子科技有限公司
Priority to US16/076,334 priority Critical patent/US11114260B2/en
Publication of WO2018184347A1 publication Critical patent/WO2018184347A1/zh

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/12—Push-buttons
    • H01H3/122—Push-buttons with enlarged actuating area, e.g. of the elongated bar-type; Stabilising means therefor
    • H01H3/125—Push-buttons with enlarged actuating area, e.g. of the elongated bar-type; Stabilising means therefor using a scissor mechanism as stabiliser
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
    • H01H13/705—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys
    • H01H13/7065—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys characterised by the mechanism between keys and layered keyboards
    • 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
    • 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
    • H01H13/84—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 ergonomic functions, e.g. for miniature keyboards; characterised by operational sensory functions, e.g. sound feedback
    • H01H13/85—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 ergonomic functions, e.g. for miniature keyboards; characterised by operational sensory functions, e.g. sound feedback characterised by tactile feedback features
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/965—Switches controlled by moving an element forming part of the switch
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/965—Switches controlled by moving an element forming part of the switch
    • H03K17/968—Switches controlled by moving an element forming part of the switch using opto-electronic devices
    • H03K17/969—Switches controlled by moving an element forming part of the switch using opto-electronic devices having a plurality of control members, e.g. keyboard
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/965—Switches controlled by moving an element forming part of the switch
    • H03K17/97—Switches controlled by moving an element forming part of the switch using a magnetic movable element
    • H03K17/972—Switches controlled by moving an element forming part of the switch using a magnetic movable element having a plurality of control members, e.g. keyboard
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/965—Switches controlled by moving an element forming part of the switch
    • H03K17/975—Switches controlled by moving an element forming part of the switch using a capacitive movable element
    • H03K17/98—Switches controlled by moving an element forming part of the switch using a capacitive movable element having a plurality of control members, e.g. keyboard
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2215/00—Tactile feedback
    • H01H2215/03—Sound
    • 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
    • H01H2235/00—Springs
    • H01H2235/01—Spiral spring
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
    • H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
    • H03K2217/965—Switches controlled by moving an element forming part of the switch
    • H03K2217/9651—Switches controlled by moving an element forming part of the switch the moving element acting on a force, e.g. pressure sensitive element

Definitions

  • the present invention relates to the field of keyboard keys and keyboards, and more particularly to a button for a scissor foot structure, and a switch device provided by the button, and a keyboard to which the button is applied.
  • the scissors foot structure membrane switch keyboard is mostly used in the notebook keyboard because of the product thickness book.
  • the structure of the scissor foot is also called the full structure of the X structure called SCISSOR. Its working principle is: using two sets of parallel four-bar linkage mechanism to force the user to enjoy a smooth and consistent feel when pressing the four corners of the keyboard. , lightweight plastic steel material, sturdy structure, durability is better than the average keyboard.
  • the design of the scissor foot structure is mostly used on notebooks and ultra-thin PC keyboards. It is a set of two kinds of link structure support frames with a scissors shape between the key cap and the base. The key stroke is generally about 2.0mm ⁇ 3.0mm. This design allows the user's fingers to be evenly stressed on the key cap. Each button can get the same feel.
  • Patent No. 201410583955.4 the patent name is a utility model patent of a keyboard button, and discloses a photoelectric type scissors foot button structure, which realizes the photoelectric switch of the scissor foot structure, and overcomes the noise problem easily generated by the mechanical switch. .
  • this structure cannot have a clear sense of passage and sound, and the hand feel is still insufficient to meet the needs of use.
  • a first object of the present invention is to overcome the deficiencies of the prior art and to provide an optical path switch device which can improve the smoothness of a button and achieve a relatively clear sense of paragraph when applied to a structure of a scissor foot structure.
  • the second and third objects of the present invention are to provide a scissor foot structure button.
  • the fourth and fifth objects of the present invention are to provide a keyboard having a scissor foot structure button.
  • a switch device includes a resettable scissors foot and a mounting seat;
  • the scissor foot portion includes a male foot and a female foot, the male foot and the female foot are hinged to form a scissor-like structure; and the first end of the male foot is hinged The first end of the female foot is slidably disposed on the mounting seat on the mounting seat;
  • a resetting auxiliary portion is disposed at the second end of the male leg; the resetting auxiliary portion is provided with a receiving position, and the two side walls of the receiving position are respectively provided with a pallet;
  • the two sides of the ram are provided with a bump that cooperates with the pallet, and the ram is hung on the pallet by two of the bumps;
  • the mounting seat is provided with a recess for placing the ram
  • the ram When the scissor foot structure is in the home position, the ram is placed on the side wall of the recess; when the scissor foot structure is pressed down, the ram moves in a direction that can fall into the recess; After the scissor foot is pressed down to the critical point, the ram falls into the recess; during the resetting process of the scissor foot structure, the cradle then drives the ram to reset.
  • a push portion for pushing the ram is further included, the push portion being disposed at the first end of the female foot; and the push portion pushing the ram to move when the scissors foot is gathered.
  • the pallet is located on the falling trajectory of the bump.
  • the pallet includes a concave curved surface having an upward trend from the end portion to the connecting portion, and a land surface connected to the concave curved surface; the bottom surface of the convex portion is a surface having an upper concave portion.
  • the side wall of the recess forms a first limiting portion
  • the outer side of the ram is provided with a second limiting portion that cooperates with the first limiting portion; the ram falls into the concave portion
  • the first limiting portion is fitted to the second limiting portion.
  • the sidewall of the recess forms three limiting slots as the first limiting portion, the three limiting slots are triangularly distributed, and three outer limiting surfaces are formed on the outer side of the ram as the second limiting portion.
  • the receiving position is a limiting frame; the limiting frame is sleeved outside the ram.
  • a scissor-foot structure button comprising: the switch device; a key cap is disposed above the scissor foot.
  • a return spring is further included, the return spring being disposed between the keycap and the ram; one end of the return spring is disposed on the keycap, and the other end is disposed on the ram.
  • a base for mounting the scissor foot structure button on the circuit board is further included, the mounting seat being disposed on the base.
  • the mounting seat is provided with an LED lamp near the middle of the scissor foot.
  • a middle spring is arranged in the middle of the scissors foot for realizing the resetting of the foot of the scissors; one end of the main spring is disposed on the mounting seat; when the key cap is pressed, the main spring is pressed by the key cap and After the external force is removed, the main spring is reset, and the key cap and the scissors foot are reset.
  • a scissor-foot structure button includes the switch device; a key cap is disposed above the scissor foot; an optical component accommodating position is respectively disposed on opposite sides of the recess, the light receiving component and the light The emitting elements are respectively disposed at the two optical element receiving positions.
  • the optical element accommodating position communicates with the concave portion through the provision of the light transmission hole.
  • a return spring is further included, the return spring being disposed between the keycap and the ram; one end of the return spring is disposed on the keycap, and the other end is disposed on the ram.
  • the top surface of the ram is provided with a recess for limiting the return spring, the end of the return spring being placed in the recess.
  • a base for mounting the scissor foot structure button on a circuit board is further included, the mount being detachably mounted on the base.
  • a base for mounting the scissor foot structure button on the circuit board is further included, the mounting seat being fixed to the base, the mounting seat being inseparable from the base.
  • a dust cover is disposed between the male foot and the female foot and the key cap; the dust cover is closed on the male foot and the female foot, and the dust cover is The opening edge is embedded in the mounting seat; the second end of the female leg is hinged to the dust cover, and the second end of the male foot is slidably disposed on the dust cover.
  • the mount is provided with an LED light on the side adjacent to the scissors foot.
  • the LED light is located in the middle of the scissor foot.
  • a middle spring is arranged in the middle of the scissors foot for realizing the resetting of the foot of the scissors; one end of the main spring is disposed on the mounting seat; when the key cap is pressed, the main spring is pressed by the key cap and After the external force is removed, the main spring is reset, and the key cap and the scissors foot are reset.
  • a scissors foot structure key keyboard comprising the scissors foot structure button according to claim 8 to claim 12 and a chassis having a circuit board, wherein the scissors foot structure button is disposed on the chassis.
  • the circuit board is provided with a protective coating.
  • a scissor-foot structure key keyboard includes the scissor-foot structure button and a chassis having a circuit board, and the scissor-foot structure button is disposed on the chassis.
  • the chassis includes a flexible circuit board disposed from bottom to top, a shield plate, and a mounting panel; the base is disposed on the mounting panel; and the light receiving component and the light emitting component are coupled to the flexible circuit board.
  • the optical component is disposed in a hollow structure of the mount
  • the base is provided with a hollow structure corresponding to the light emitting component and the light receiving component
  • the light emitting component and the light receiving component are disposed on the mounting panel.
  • the first light-emitting element and the light-receiving element are respectively provided with a first through hole.
  • the concave portion is a structure penetrating through the mounting seat, and corresponding to the concave portion, a second through hole is respectively disposed on the mounting panel and the protective plate.
  • the present invention has the following beneficial effects:
  • the photoelectric switch of the button of the scissor foot structure can be realized, the noise problem easily generated by the mechanical switch is overcome, and the smoothness of the button and the more obvious paragraph feeling can be improved. It is detachably mounted on the base through the mounting seat, so that the buttons can be modularized and easily disassembled, so that the overall service life of the keyboard can be extended.
  • FIG. 1 is a schematic structural view of a scissor foot structure button according to the present invention.
  • FIG. 2 is a schematic structural view of a scissor-foot structure button according to the present invention (the keycap is omitted);
  • FIG. 3 is a schematic structural view of a scissor foot structure button according to the present invention (the key cap and the dust cover are omitted);
  • FIG. 4 is a schematic structural view of a scissor foot structure button according to the present invention (the key cap, the dust cover and the mounting seat are omitted);
  • FIG. 5 is a schematic structural view of the scissor-foot structure button according to the present invention (the key cap, the dust cover, the mounting seat and the base are omitted);
  • Figure 6 is a schematic structural view of the optical path switching device of the present invention (the reset spring is omitted);
  • Figure 7 is a schematic structural view of a ram according to the present invention.
  • FIG. 8 is a schematic structural view of a mount and a base according to the present invention.
  • Figure 9 is a schematic structural view of a scissor foot structure according to the present invention.
  • Figure 10 is a schematic view showing the state of the reset assisting portion and the ram when the scissor-foot structure of the button of the scissor-foot structure of the present invention is in the original position;
  • Figure 11 is a schematic view showing the state of the resetting assisting portion and the ram when the scissor-foot structure of the button of the scissor-foot structure of the present invention is located at a critical point and continues to sink;
  • Fig. 12 is a schematic view showing the state of the reset assisting portion and the ram when the scissor-foot structure of the button of the scissor-foot structure according to the present invention is at the lowest position.
  • 1 key cap
  • 2 dust cover
  • 3 mounting seat
  • 311 recessed part
  • 312 stop slot
  • 313 light transmission hole
  • 314 optical component receiving position
  • 32 main spring
  • 4 base
  • 511 - reset auxiliary part 5111 - accommodating position; 5112 - pedestal; 52 - female foot; 521 - pusher; 6 - ram; 61 - bump; 62 - limit block; 63 - concave Bit
  • 64 - return spring 7 - mounting panel
  • 8 - shield 9 - flexible circuit board
  • 10 LED light
  • a switch device includes a resettable scissors foot and a mounting seat 3 , a reset assisting portion 511 , a ram 6 for pushing the ram 6 to move. Pushing section 521.
  • the scissors foot includes a male foot 51 and a female foot 52.
  • the male foot 51 and the female foot 52 are hinged to form a scissor-like structure; the first end of the male foot 51 is hinged to the mounting seat 3, and the first end of the female foot 52 is slidably mounted Block 3;
  • the reset assisting portion 511 is disposed at the second end of the male foot 51; the reset assisting portion 511 is provided with a receiving position 5111, and the receiving position 5111 is a limiting frame, and the two side walls of the limiting frame respectively extend out of the pallet 5112;
  • the limit frame is a square limit frame.
  • the pushing portion 521 is disposed at the first end of the female leg 52.
  • the two sides of the ram 6 are provided with a protrusion 61 matched with the support 5112.
  • the ram 6 is hung on the support 5112 by two protrusions 61; the limit frame is sleeved on the outside of the ram 6.
  • the basic shape of the ram 6 is rounded in radial section Square cuboid.
  • the mount 3 is provided with a recess 311 for arranging the ram 6.
  • the sidewall of the recess 311 forms a first limiting portion, and the outer surface of the ram 6 is provided with a second limiting portion that cooperates with the first limiting portion; when the ram 6 falls into the recess, the first limiting portion The portion is fitted to the second limiting portion.
  • the ram 6 When the ram 6 is dropped into the recess 311, it can fall into an accurate position.
  • the three limiting slots 312 are formed on the sidewall of the recess 311 , and include a first limiting slot, a second limiting slot and a third limiting slot.
  • the three limiting slots 312 are triangularly distributed.
  • the first limiting slot is formed by recessing the sidewall, and the second limiting slot and the third limiting slot are both formed by the limiting baffle extending from the sidewall and the sidewall.
  • the ram 6 When the scissor foot structure is in the home position, the ram 6 is placed on the opposite side walls so that the ram 6 can be stably placed; as shown in FIG. 1, the ram 6 is placed on the side wall of the recess 311 and the limit Above the sidewall of the slot 312.
  • the ram 6 moves to the direction of falling into the concave portion 311; after the scissors foot is pressed down to the critical point, the ram 6 falls into the concave portion 311; during the resetting process of the scissors foot structure, the table 5112 The ram 6 is then reset.
  • the pushing portion 521 pushes the ram 6 to move.
  • the pushing portion 521 When the ram 521 moves in the direction of the concave portion 311, the pushing portion 521 provides one more power, so that the ram 6 moves not only by the collision force of the ram 6 itself; when the scissor structure is pressed, the ram 6 is moved toward The movement of the concave portion 311 is more clearly defined, and it can fall into the concave portion 311 as needed.
  • the cross-sectional shape of the pushing portion 521 is substantially "convex".
  • the pallet 5112 can be smoothly lifted. As shown in FIG. 7, the pallet 5112 includes a slave end.
  • the concave curved land surface and the flat surface connected to the concave curved surface are connected to the connecting portion; the bottom surface of the convex portion 61 is a surface having the upper concave portion.
  • the photoelectric signal input mode of the button of the scissor foot structure can be realized, the noise problem easily generated by the mechanical switch is overcome, and since the ram 6 falls into the concave portion 311, the concave portion 311 is struck.
  • the bottom surface emits a sound, which makes the button have a more pronounced passage and sound.
  • the position of the pallet is located on the falling trajectory of the bump. At this time, the bump hits the pallet, resulting in obvious sound. .
  • a first embodiment of a scissor-foot structure button according to the present invention is as follows:
  • the scissor-foot structure button of the present invention comprises a keycap 1, a light-receiving element, a light-emitting element, a return spring 64, a switch device according to the present invention, and a base 4 for limiting the entire button to the circuit board.
  • the base 4 is a frame structure and mainly includes a closed frame.
  • the mounting seat 3 is detachably mounted in the base 4: the outer side of the mounting seat 3 is provided with a male buckle, and the inner side of the base 4 is provided with a female buckle, and the mounting seat 3 is fastened with the female buckle by the male buckle, thereby being disposed on the base 4 Upper side; the outer side of the mounting seat 3 may be provided with a female buckle, and the inner side of the base 4 is provided with a male buckle.
  • the base 4 and the mount 3 can also be inseparable overall.
  • the optical component accommodating position 314 is respectively disposed on the opposite sides of the concave portion 311, and the optical component accommodating position 314 is communicated with the concave portion 311 through the through hole 313; the light receiving component and the light emitting component are respectively disposed in the two
  • the optical component accommodates the position 314; as shown in FIG. 8, the two light transmission holes 313 are located on opposite side walls.
  • the inner walls of the opposite sides of the recess 311 are respectively provided with optical component receiving positions 314, that is, the optical component receiving positions are located on both sides of the concave portion 311, and the light receiving component and the light emitting component can form an optical path. .
  • the light receiving element and the light emitting element are respectively a receiving end and a transmitting end of the optocoupler 01;
  • the optocoupler 01 is selected from one of a light emitting diode and a photodiode, a phototransistor, a photoresistor and the like.
  • a dust cover 2 is disposed above the scissors foot, and a key cap 1 is disposed above the dust cover 2; the dust cover 2 is closed on the male foot 51 and the female foot 52, and the opening edge of the dust cover 2 is embedded in the mounting seat 3 inside.
  • the second end of the male foot 51 is slidably disposed on the dust cover 2, and the second end of the female foot 52 is hinged to the keycap 1.
  • the top surface of the ram 6 is provided with a recess 63 for limiting the return spring 64.
  • the return spring 64 is disposed between the dust cover 2 and the ram 6; one end of the return spring 64 is disposed on the dust cover 2, and the other end is placed in the recess 63.
  • a main spring 32 for rotating the structure of the scissor foot is provided in the middle of the scissors foot.
  • a positioning cylinder is disposed in a middle portion of the mounting seat 3, and a lower end of the main spring 32 is sleeved on the positioning cylinder, and an upper end of the main spring 32 is abutted against the dustproof cover 2.
  • the LED lamp 10 is disposed in the positioning cylinder, and the LED lamp 10 is disposed in the positioning cylinder to allow light to pass through the central portion of the keycap 1, so that the entire keycap 1 can be illuminated.
  • the working principle of the scissors foot structure button according to the present invention is as follows:
  • A indicates the bottom surface of the bump 61
  • B indicates the land surface of the pallet 5112.
  • the main spring 32 Under the external force of the keycap 1, the main spring 32 is pressed down, and the scissors foot is gathered and sunk, and the second end of the male foot 51 and the first end of the female foot 52 are translated;
  • the position of the pallet 5112 of the reset assisting portion 511 is changed, and the ram 6 is moved in the direction of falling into the recess 311.
  • the pushing block acts to push the ram 6 to move; 11 shows that after the scissor foot structure sinks to the critical point and continues to sink, the ram 6 falls into the recess 311; at this time, as shown, the bump 61 and the pallet 5112 are separated from each other.
  • the hammer 6 blocks between the transmitting end and the receiving end, and the switch generates an ON signal for input.
  • the hamper 6 falls to block the optical path, which is the key to realize the signal input.
  • the hammer 6 is accurately and timely dropped into the concave portion 311, and the timeliness and effectiveness of the entire key input signal are also ensured. . Due to the action of the tapping, the structure of the scissor foot will continue to sink, as shown in Fig. 12, at this time, the pallet 5112 will sink to the bottom, and the pallet 5112 will be completely separated from the bump.
  • the keycap When the external force of the keycap 1 is removed, the keycap is reset by the main spring 32 to complete an input. Due to the main bomb The action of the spring 32 allows the keycap 1 to be quickly reset, speeding up the input.
  • the key cap 1 is reset, and the movement path of the pallet 5112 can refer to the state of FIG. 12 to FIG. 11. At this time, the pallet 5112 lifts the bump 61 again, and the keycap 1 is reset to drive the scissors foot structure to be reset, and the pallet 5112 is driven.
  • the ram 6 is reset.
  • the button of the invention realizes modularization, and when a button needs to be replaced, the mount 3 can be directly removed from the base 4. Other buttons can continue to be used, and the removal operation will not affect the structure of other buttons.
  • the photoelectric signal input mode of the button of the scissor foot structure can be realized, and the noise problem easily generated by the mechanical switch is overcome, and since the ram 6 falls into the concave portion 311 and hits the bottom surface of the concave portion 311, an acoustic sound can be generated.
  • the buttons have a more pronounced passage and sound.
  • the ram is a conductor or a conductor, and the two optical component accommodating positions are replaced by two capacitor accommodating positions, and the two capacitor accommodating positions respectively have the first one.
  • the capacitor and the second capacitor; the capacitor receiving position does not necessarily communicate with the recess.
  • the first capacitor and the second capacitor are connected to the circuit board.
  • the ram falls into the recess, the ram and the two capacitors form a capacitive sensing effect.
  • the ram triggers two capacitors to generate a signal input to the board, thereby realizing the information input of the button.
  • the ram is provided with a magnetic body or a ram with a magnetic body; corresponding to the ram, a Hall switch is provided at the bottom of the recess or on the circuit board below the recess, the Hall switch and Board connection.
  • a scissor-foot structure key keyboard includes a scissor-foot structure button and a chassis having a circuit board, and the scissor-foot structure button is mounted on the chassis.
  • the chassis includes a flexible circuit board 9, a shield 8 and a mounting panel 7 which are disposed from the bottom to the top.
  • the bottom of the positioning cylinder on the mounting seat 3 is a through structure; the optical component receiving position 314 is a hollow structure of the mounting seat 3.
  • the base 4, the LED lamp 10, the light emitting element and the light receiving component are all disposed on the mounting panel 7; the corresponding LED light 10, the light emitting component and the light receiving component are respectively provided with a first through hole on the shielding plate 8 to make the flexible
  • the circuit board 9 is exposed, and the LED lamp 10, the light receiving element, and the light emitting element can be connected to the flexible circuit board 9. Since the recess 311 is a structure penetrating the mount 3 as shown in FIG. 4, the recess 311 can expose the panel.
  • the keyboard of the present invention can realize the photoelectric signal input mode of the keys of the scissor foot structure, and overcome the noise problem easily generated by the mechanical switch; Can make the button have a more obvious paragraph sense and sound.
  • the circuit on the film plate is made of silver paste, it is easily damaged by oxidation; the flexible circuit board 9 is used instead of the film plate to make the keyboard more durable.
  • a protective coating is provided on the circuit board, that is, three anti-coating films.
  • the circuit board in the chassis can also be a thin film circuit board.
  • the scissor-foot structure button mounted on the chassis does not need to be provided with an optical component, and only needs to have a signal input on the position of the corresponding concave portion on the thin film circuit. Point, the ram hits the recess and hits the signal input end, which realizes the signal input of the button.

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  • Push-Button Switches (AREA)

Abstract

本发明所述的一种开关装置，包括可复位的剪刀脚部及安装座；复位辅助部，设置在公脚的第二端；所述复位辅助部设有容置位，容置位的两侧壁分别设有托台；撞锤，撞锤的两侧设有与托台相配合的凸块，撞锤通过两个凸块挂在托台上；安装座设有一用于置放撞锤的凹部；剪刀脚结构位于原位时，撞锤置于凹部的侧壁之上；剪刀脚结构被下压时，撞锤往可落入所述凹部的方向移动；剪刀脚被下压至临界点后，撞锤落入所述凹部中；剪刀脚结构复位过程中，托台随之带动撞锤复位。通过上述结构，既能实现剪刀脚结构的光电式开关，而且也能使按键具有较为明显的段落感及声响。克服了机械开关容易产生的杂讯，手感不足，不能满足用户使用需求等问题。

Description

剪刀脚结构按键及其开关装置，及应用该按键的键盘 技术领域
本发明涉及键盘按键及键盘领域，特别涉及一种剪刀脚结构的按键，以及该按键具有的开关装置，以及应用该按键的键盘。
背景技术
目前市场上，剪刀脚结构薄膜开关键盘因产品厚度簿多用于笔记本键盘中。剪刀脚结构也称X结构全称叫做SCISSOR，它的工作原理是：运用两组平行四连杆机构，以强迫运动方式让使用者按触键盘的四个角落时都能享受到顺畅及一致的手感，轻质的塑钢材料，结构坚固，耐用度比一般键盘要好。剪刀脚结构的设计多数用于笔记本以及超薄的PC电脑键盘上。它是键帽与底座之间采用了类似剪刀形状的两组连杆结构支撑架，键程一般约为2.0mm～3.0mm左右，这种设计能让用户的手指均匀地受力在键帽上，每个按键均能获得同样的手感。
专利号为201410583955.4、专利名称为一种键盘按键的实用新型专利，公开了一种光电式的剪刀脚按键结构，其实现了剪刀脚结构的光电式开关，克服了机械开关容易产生的杂讯问题。但这种结构不能具有明显的段落感及声响，手感依然不足，不能满足使用需求。
发明内容
本发明的第一个目的是为了克服现有技术的不足，提供一种光路开关装置，其应用于剪刀脚结构按键时，能提高按键平稳性及实现较为明显的段落感。
本发明的第二、三个目的是为了提供剪刀脚结构按键。
本发明的第四、五个目的是为了提供具有剪刀脚结构按键的键盘。
为了达到上述目的，本发明采用以下技术方案：
一种开关装置，包括可复位的剪刀脚部及安装座；所述剪刀脚部包括公脚和母脚，所述公脚与母脚铰接形成剪刀状结构；所述公脚的第一端铰接于所述安装座上，所述母脚的第一端滑动设于所述安装座；
复位辅助部，设置在公脚的第二端；所述复位辅助部设有容置位，所述容置位的两侧壁分别设有托台；
撞锤，所述撞锤的两侧设有与所述托台相配合的凸块，所述撞锤通过两个所述凸块挂在所述托台上；
所述安装座设有一用于置放所述撞锤的凹部；
所述剪刀脚结构位于原位时，所述撞锤置于所述凹部的侧壁之上；所述剪刀脚结构被下压时，所述撞锤往可落入所述凹部的方向移动；所述剪刀脚被下压至临界点后，所述撞锤落入所述凹部中；所述剪刀脚结构复位过程中，所述托台随之带动撞锤复位。
作为优选，还包括一用于推动撞锤移动的推动部，所述推动部设置在所述母脚的第一端；所述剪刀脚部收拢时，所述推动部推动所述撞锤移动。
作为优选，所述剪刀脚被下压至临界点后，所述托台位于所述凸块的下落轨迹上。
作为优选，所述托台包括具有从端部到连接部呈上升趋势的凹曲台面及与所述凹曲台面连接的平台面；所述凸块的底面为具有上凹部的面。
作为优选，所述凹部的侧壁形成第一限位部，所述撞锤的外侧面设有与所述第一限位部配合的第二限位部；所述撞锤落入所述凹部时，所述第一限位部与第二限位部嵌合。
作为优选，所述凹部的侧壁形成三个作为第一限位部的限位槽，三个限位槽呈三角分布，所述撞锤外侧面上形成三个作为第二限位部的且呈三角分布的限位块。
作为优选，所述容置位为一限位框；所述限位框套设在所述撞锤外侧。
一种剪刀脚结构按键，其特征在于，包括所述的开关装置；所述剪刀脚部的上方设置键帽。
作为优选，还包括复位弹簧，所述复位弹簧设置在所述键帽与所述撞锤之间；所述复位弹簧的一端设于键帽，另一端设于所述撞锤。
作为优选，还包括用于将所述剪刀脚结构按键安装在电路板上的底座，所述安装座设置在所述底座上。
作为优选，所述安装座上在靠近剪刀脚中部设有一LED灯。
作为优选，所述剪刀脚部的中间设有一用于实现带动剪刀脚部复位的主弹簧；所述主弹簧一端设于所述安装座；键帽被下压时，键帽下压主弹簧及剪刀脚部，外力撤除后，主弹簧复位，带动键帽及剪刀脚部复位。
一种剪刀脚结构按键，包括所述的开关装置；所述剪刀脚部的上方设置键帽；所述凹部的相对两侧分别设有光元件容置位，所述光接收元件与所述光发射元件分别设于两所述光元件容置位。
作为优选，所述光元件容置位与所述凹部通过设置透光孔连通。
作为优选，还包括复位弹簧，所述复位弹簧设置在所述键帽与所述撞锤之间；所述复位弹簧的一端设于键帽，另一端设于所述撞锤。
作为优选，所述撞锤的顶面设有一用于对复位弹簧实现限位的凹位，所述复位弹簧的端部置于所述凹位中。
作为优选，还包括用于将所述剪刀脚结构按键安装在电路板上的底座，所述安装座可拆卸地安装在所述底座上。
作为优选，还包括用于将所述剪刀脚结构按键安装在电路板上的底座，所述安装座固定于所述底座上，所述安装座与所述底座为一不可分离的整体。
作为优选，所述公脚及所述母脚与所述键帽之间设有防尘盖；所述防尘盖盖合在所述公脚与所述母脚上，且所述防尘盖的开口边缘嵌入所述安装座内；所述母脚的第二端铰接在所述防尘盖，所述公脚的第二端滑动设于所述防尘盖。
作为优选，所述安装座在靠近剪刀脚部一侧设有一LED灯。
作为优选，所述LED灯位于所述剪刀脚部的中间。
作为优选，所述剪刀脚部的中间设有一用于实现带动剪刀脚部复位的主弹簧；所述主弹簧一端设于所述安装座；键帽被下压时，键帽下压主弹簧及剪刀脚部，外力撤除后，主弹簧复位，带动键帽及剪刀脚部复位。
一种剪刀脚结构按键键盘，包括权利要求8至权利要求12所述的剪刀脚结构按键及具有电路板的底盘，所述剪刀脚结构按键设于所述底盘上。
作为优选，所述电路板上设有一层防护镀膜。
一种剪刀脚结构按键键盘，包括所述的剪刀脚结构按键及具有电路板的底盘，所述剪刀脚结构按键设于所述底盘上。
作为优选，所述底盘包括由下至上设置的柔性电路板、防护板及安装面板；所述底座设置在安装面板上；所述光接收元件及光发射元件与柔性电路板连接。
作为优选，所述光元件容置位为所述安装座的镂空结构，所述底座对应所述光发射元件与光接收元件设有镂空结构，所述光发射元件与光接收元件设置在安装面板上；所述防护板上对应光发射元件与光接收元件分别设有第一通孔。
作为优选，所述凹部为贯穿安装座的结构，对应凹部，在所述安装面板与所述防护板上分别设有第二通孔。
与现有技术相比，本发明具有以下有益效果：
通过上述结构，既能实现剪刀脚结构的按键的光电式开关，克服了机械开关容易产生的杂讯问题，而且能提高按键平稳性及实现较为明显的段落感。通过安装座可拆卸地安装在底座上，使按键实现模块化，容易拆装，使键盘整体的使用寿命得以延长。
附图说明
图1是本发明所述的剪刀脚结构按键的结构示意图；
图2是本发明所述的剪刀脚结构按键的结构示意图(省略键帽)；
图3是本发明所述的剪刀脚结构按键的结构示意图(省略键帽与防尘盖)；
图4是本发明所述的剪刀脚结构按键的结构示意图(省略键帽、防尘盖及安装座)；
图5是本发明所述的剪刀脚结构按键的结构示意图(省略键帽、防尘盖、安装座及底座)；
图6是本发明所述的光路开关装置的结构示意图(省略复位弹簧)；
图7是本发明所述的撞锤的结构示意图；
图8是本发明所述的安装座及底座的结构示意图；
图9是本发明所述的剪刀脚结构的结构示意图；
图10是本发明所述的剪刀脚结构的按键的剪刀脚结构位于原位置时，复位辅助部及撞锤状态示意图；
图11是本发明所述的剪刀脚结构的按键的剪刀脚结构位于临界点后，继续下沉时，复位辅助部及撞锤状态示意图；
图12是本发明所述的剪刀脚结构的按键的剪刀脚结构位于最低位时，复位辅助部及撞锤状态示意图。
图中：
1—键帽；2—防尘盖；3—安装座；311—凹部；312—限位槽；313—透光孔；314—光元件容置位；32—主弹簧；4—底座；51—公脚；511—复位辅助部；5111—容置位；5112—托台；52—母脚；521—推动部；6—撞锤；61—凸块；62—限位块；63—凹位；64—复位弹簧；7—安装面板；8—防护板；9—柔性电路板；10—LED灯；01—光耦。
具体实施方式
现结合附图与具体实施例对本发明作进一步说明。
参阅图2至图7、图9所示，本发明所述的一种开关装置，包括可复位的剪刀脚部及安装座3、复位辅助部511、撞锤6、用于推动撞锤6移动的推动部521。
剪刀脚部包括公脚51和母脚52，公脚51与母脚52铰接形成剪刀状结构；公脚51的第一端铰接于安装座3上，母脚52的第一端滑动设于安装座3；
复位辅助部511设置在公脚51的第二端；复位辅助部511设有容置位5111，容置位5111为一限位框，限位框的两侧壁分别延伸出托台5112；作为优选，限位框为一正方形限位框。推动部521设置在母脚52的第一端。
撞锤6的两侧设有与托台5112相配合的凸块61，撞锤6通过两个凸块61挂在托台5112上；限位框套设在撞锤6外侧。与限位框的结构配合，撞锤6的基础形状为径向截面为圆角 正方形的长方体。
安装座3设有一用于置放撞锤6的凹部311。
凹部311的侧壁形成第一限位部，撞锤6的外侧面设有与所述第一限位部配合的第二限位部；撞锤6落入所述凹部时，第一限位部与第二限位部嵌合。使撞锤6落入凹部311时能够落入准确的位置。
如图8所示，作为优选，凹部311的侧壁形成三个限位槽312，包括第一限位槽、第二限位槽及第三限位槽；三个限位槽312呈三角分布。第一限位槽为侧壁凹陷形成，第二限位槽与第三限位槽皆为侧壁延伸出的限位挡板与侧壁包围形成。
剪刀脚结构位于原位时，撞锤6放置在相对的两个侧壁之上，使撞锤6可以稳定放置；如图1所示，撞锤6置放在凹部311的侧壁及限位槽312的侧壁之上。
剪刀脚部被下压时，撞锤6往可落入凹部311的方向移动；剪刀脚被下压至临界点后，撞锤6落入凹部311中；剪刀脚结构复位过程中，托台5112随之带动撞锤6复位。剪刀脚部被下压时，推动部521推动撞锤6移动。推动部521为撞锤6往凹部311方向移动时，提供多一个动力，使撞锤6移动时不单靠撞锤6自身的撞力作用；当剪刀脚结构被压时，使撞锤6往凹部311方向移动更为明确，能够按需求落入凹部311。如图5及图6所示，推动部521的截面形状大致呈“凸”型。
为了让撞锤6可以更好地在托台5112上移动落入凹部311，且剪刀脚结构复位时，可以被托台5112顺利托起，如图7所示，托台5112包括具有从端部到连接部呈上升趋势的凹曲台面及与凹曲台面连接的平台面；凸块61的底面为具有上凹部的面。
通过上述结构应用于剪刀脚按键时，既能实现剪刀脚结构的按键的光电式信号输入方式，克服了机械开关容易产生的杂讯问题；而且由于撞锤6落入凹部311，撞击凹部311的底面，发出声响，能使按键具有较为明显的段落感及声响。而为了产生更好及明显的声响，剪刀脚被下压至临界点后，托台所处的位置是位于凸块的下落轨迹上，此时，凸块撞击在托台上，从而产生明显的声响。
参阅图1至图9所示，本发明所述的一种剪刀脚结构按键的实施例一，具体如下：
本发明所述的剪刀脚结构按键，包括键帽1、光接收元件、光发射元件、复位弹簧64、本发明所述的开关装置及用于将按键整体限位在电路板上的底座4。底座4为一框结构座体，主要包括一闭合的边框。安装座3可拆卸地安装在底座4中：安装座3的外侧设有公扣，底座4的内侧面设有母扣，安装座3通过公扣与母扣相互扣合，从而设置在底座4上；也可以安装座3的外侧设有母扣，底座4的内侧面设有公扣。底座4与安装座3也可为不可分离的 整体。
凹部311的相对两侧分别设有光元件容置位314，光元件容置位314与凹部311通过设置透光孔313连通；所述光接收元件与所述光发射元件分别设于两所述光元件容置位314；如图8所示，即两透光孔313位于两相对的侧壁。作为另一种方式，凹部311的相对两侧的内壁分别设有光元件容置位314，即光元件容置位只要位于凹部311两侧，且光接收元件与光发射元件可形成光路即可。
作为优选，光接收元件与光发射元件分别为光耦01的接收端和发射端；光耦01选自发光二极管和光敏二极管、光敏三极管、光敏电阻等中的一种。
剪刀脚部的上方设置防尘盖2，防尘盖2的上方设有键帽1；防尘盖2盖合在公脚51与母脚52上，且防尘盖2的开口边缘嵌入安装座3内。公脚51的第二端部滑动设于防尘盖2，母脚52的第二端部铰接在键帽1。
撞锤6的顶面设有一用于对复位弹簧64实现限位的凹位63。复位弹簧64设置在防尘盖2与撞锤6之间；复位弹簧64的一端设于防尘盖2，另一端置于凹位63中。剪刀脚部的中间设有一用于带动剪刀脚结构复位的主弹簧32。安装座3的中部设有定位筒，主弹簧32的下端套接在定位筒，主弹簧32的上端与防尘盖2抵持。定位筒内设置LED灯10，在定位筒设置LED灯10，使光从键帽1的中部透出，使整个键帽1都能够亮起来。
结合图10至图12所示，本发明所述的剪刀脚结构按键的工作原理：
其中图10至图12中,A指示的是凸块61的底面，B指示的是托台5112的台面。
如图10所示，当没有外力敲击按键，剪刀脚结构将位于原位，撞锤6正常状态挂在托台51112上。
在敲击键帽1的外力作用下，将主弹簧32压下，同时剪刀脚部收拢下沉，且公脚51的第二端与母脚52的第一端平移；
复位辅助部511的托台5112位置变动，同时撞锤6往可落入凹部311的方向移动；当母脚52上设有推动块时，推动块起到推动撞锤6移动的作用；如图11所示，剪刀脚结构下沉至临界点后，继续下沉时，撞锤6落入凹部311；此时，如图所示，凸块61与托台5112有一定部份脱离开，撞锤6阻挡在发射端和接收端中间，开关产生一次开信号进行输入。撞锤6下落阻挡光路，是实现信号输入的关键，所以通过在母脚52上设置推动部521，保证撞锤6准确及时落入凹部311，也保证了整个按键输入信号的及时性及有效性。由于敲击的作用，剪刀脚结构会继续下沉，如图12所示，此时托台5112会下沉至最下方，托台5112与凸块完全脱离。
当敲击键帽1的外力移除后，键帽在主弹簧32的作用下复位，完成一次输入。由于主弹 簧32的作用，使得键帽1可以快速复位，加快了输入的速度。键帽1复位，托台5112的运动路径可参考图12至图11的状态，此时，托台5112再次将凸块61托起，键帽1复位带动剪刀脚结构复位，托台5112会带动撞锤6复位。
本发明所述的按键实现模块化，某一按键需要更换时，可以直接把安装座3从底座4上拆除即可。其它按键可以继续使用，而且拆除操作也不会影响其它按键的结构。通过上述结构既能实现剪刀脚结构的按键的光电式信号输入方式，克服了机械开关容易产生的杂讯问题；而且由于撞锤6落入凹部311，撞击凹部311的底面，发出声响，能使按键具有较为明显的段落感及声响。
本发明所述的一种剪刀脚结构按键的实施例二，除以下结构以外，其它结构与实施例一相同：
本发明所述的剪刀脚结构按键中，撞锤为导电体或设置有导电体，两个光元件容置位替换为两个电容容置位，两个电容容置位中分别设有第一电容及第二电容；电容容置位与凹部不一定相通。在本发明所述的剪刀脚结构按键安装在键盘底盘上时，第一电容及第二电容皆与电路板连接，当撞锤落入凹部后，撞锤与两个电容形成电容式感应效果，撞锤触发两个电容产生信号输入至电路板，从而实现按键的信息输入。
本发明所述的一种剪刀脚结构按键的实施例三，除以下结构以外，其它结构与实施例一相同：
本发明所述的剪刀脚结构按键中，撞锤为磁性体或撞锤设置有磁性体；对应撞锤，在凹部的底部或在凹部下方的电路板上设有霍尔开关，霍尔开关与电路板连接。在本发明所述的剪刀脚结构按键安装在键盘底盘上时，当撞锤落入凹部后，磁性体与霍尔开关之间的距离发生变化，以使霍尔开关70的输入输出变化来实现按键的信息输入。
参阅图1至图8所示，本发明所述的一种剪刀脚结构按键键盘，包括剪刀脚结构按键及具有电路板的底盘，剪刀脚结构按键安装在底盘上。
底盘包括由下至上设置的柔性电路板9、防护板8及安装面板7。
安装座3上的定位筒的底部为贯通结构；光元件容置位314为所述安装座3的镂空结构。所述底座4、LED灯10、光发射元件与光接收元件皆设置在安装面板7上；防护板8上对应LED灯10、光发射元件与光接收元件分别设有第一通孔，使柔性电路板9暴露出，LED灯10、光接收元件及光发射元件即能与柔性电路板9连接。由于如图4所示，凹部311为一贯穿安装座3的结构，即该凹部311可暴露出面板。为了让撞锤6下落有足够的行程，对应凹部311，在安装面板7与防护板8上分别设有第二通孔，让撞锤6可直接落至柔性电路板9上。由于 撞锤6最后落在柔性电路板9上，发出声响；所以本发明所述的键盘，既能实现剪刀脚结构的按键的光电式信号输入方式，克服了机械开关容易产生的杂讯问题；也能使按键具有较为明显的段落感及声响。
因为薄膜版上的电路是通过银浆制作而成，容易被氧化损坏；使用柔性电路板9代替薄膜版，使键盘更为耐用。为了提高品质，电路板上设有一层防护镀膜，即三防镀膜。
但在使用需求下，底盘内的电路板也可以为薄膜电路板，此时底盘上安装的剪刀脚结构按键，不需要设置有光元件，只需要在薄膜电路上对应凹部的位置设有信号输入点，撞锤落入凹部后撞击信号输入端，即实现按键的信号输入。
本发明并不局限于上述实施方式，如果对本发明的各种改动或变型不脱离本发明的精神和范围，倘若这些改动和变型属于本发明的权利要求和等同技术范围之内，则本发明也意图包含这些改动和变动。

Claims (28)

  1. 一种开关装置，其特征在于，包括可复位的剪刀脚部及安装座；所述剪刀脚部包括公脚和母脚，所述公脚与母脚铰接形成剪刀状结构；所述公脚的第一端铰接于所述安装座上，所述母脚的第一端滑动设于所述安装座；
    复位辅助部，设置在公脚的第二端；所述复位辅助部设有容置位，所述容置位的两侧壁分别设有托台；
    撞锤，所述撞锤的两侧设有与所述托台相配合的凸块，所述撞锤通过两个所述凸块挂在所述托台上；
    所述安装座设有一用于置放所述撞锤的凹部；
    所述剪刀脚结构位于原位时，所述撞锤置于所述凹部的侧壁之上；所述剪刀脚结构被下压时，所述撞锤往可落入所述凹部的方向移动；所述剪刀脚被下压至临界点后，所述撞锤落入所述凹部中；所述剪刀脚结构复位过程中，所述托台随之带动撞锤复位。
  2. 根据权利要求1所述的开关装置，其特征在于，还包括一用于推动撞锤移动的推动部，所述推动部设置在所述母脚的第一端；所述剪刀脚部收拢时，所述推动部推动所述撞锤移动。
  3. 根据权利要求1所述的开关装置，其特征在于，所述剪刀脚被下压至临界点后，所述托台位于所述凸块的下落轨迹上。
  4. 根据权利要求1至3任一权利要求书所述的开关装置，其特征在于，
    所述托台包括具有从端部到连接部呈上升趋势的凹曲台面及与所述凹曲台面连接的平台面；所述凸块的底面为具有上凹部的面。
  5. 根据权利要求1至3任一权利要求书所述的开关装置，其特征在于，所述凹部的侧壁形成第一限位部，所述撞锤的外侧面设有与所述第一限位部配合的第二限位部；所述撞锤落入所述凹部时，所述第一限位部与第二限位部嵌合。
  6. 根据权利要求5所述的开关装置，其特征在于，所述凹部的侧壁形成三个作为第一限位部的限位槽，三个限位槽呈三角分布，所述撞锤外侧面上形成三个作为第二限位部的且呈三角分布的限位块。
  7. 根据权利要求1所述的开关装置，其特征在于，所述容置位为一限位框；所述限位框套设在所述撞锤外侧。
  8. 一种剪刀脚结构按键，其特征在于，包括权利要求1至7任一权利要求所述的开关装置；所述剪刀脚部的上方设置键帽。
  9. 根据权利要求8所述的剪刀脚结构按键，其特征在于，还包括复位弹簧，所述复位弹 簧设置在所述键帽与所述撞锤之间；所述复位弹簧的一端设于键帽，另一端设于所述撞锤。
  10. 根据权利要求8所述的剪刀脚结构按键，其特征在于，还包括用于将所述剪刀脚结构按键安装在电路板上的底座，所述安装座设置在所述底座上。
  11. 根据权利要求8所述的剪刀脚结构按键，其特征在于，所述安装座上在靠近剪刀脚中部设有一LED灯。
  12. 根据权利要求8所述的剪刀脚结构按键，其特征在于，所述剪刀脚部的中间设有一用于实现带动剪刀脚部复位的主弹簧；所述主弹簧一端设于所述安装座；键帽被下压时，键帽下压主弹簧及剪刀脚部，外力撤除后，主弹簧复位，带动键帽及剪刀脚部复位。
  13. 一种剪刀脚结构按键，其特征在于，包括权利要求1至7任一权利要求所述的开关装置；所述剪刀脚部的上方设置键帽；所述凹部的相对两侧分别设有光元件容置位，所述光接收元件与所述光发射元件分别设于两所述光元件容置位。
  14. 根据权利要求13所述的剪刀脚结构按键，其特征在于，所述光元件容置位与所述凹部通过设置透光孔连通。
  15. 根据权利要求13所述的剪刀脚结构按键，其特征在于，还包括复位弹簧，所述复位弹簧设置在所述键帽与所述撞锤之间；所述复位弹簧的一端设于键帽，另一端设于所述撞锤。
  16. 根据权利要求15所述的剪刀脚结构按键，其特征在于，所述撞锤的顶面设有一用于对复位弹簧实现限位的凹位，所述复位弹簧的端部置于所述凹位中。
  17. 根据权利要求13所述的剪刀脚结构按键，其特征在于，还包括用于将所述剪刀脚结构按键安装在电路板上的底座，所述安装座可拆卸地安装在所述底座上。
  18. 根据权利要求13所述的剪刀脚结构按键，其特征在于，还包括用于将所述剪刀脚结构按键安装在电路板上的底座，所述安装座固定于所述底座上，所述安装座与所述底座为一不可分离的整体。
  19. 根据权利要求13所述的剪刀脚结构按键，其特征在于，所述公脚及所述母脚与所述键帽之间设有防尘盖；所述防尘盖盖合在所述公脚与所述母脚上，且所述防尘盖的开口边缘嵌入所述安装座内；所述母脚的第二端铰接在所述防尘盖，所述公脚的第二端滑动设于所述防尘盖。
  20. 根据权利要求13所述的剪刀脚结构按键，其特征在于，所述安装座在靠近剪刀脚部一侧设有一LED灯。
  21. 根据权利要求20所述的剪刀脚结构按键，其特征在于，所述LED灯位于所述剪刀脚部的中间。
  22. 根据权利要求13或15或20所述的剪刀脚结构按键，其特征在于，所述剪刀脚部的 中间设有一用于实现带动剪刀脚部复位的主弹簧；所述主弹簧一端设于所述安装座；键帽被下压时，键帽下压主弹簧及剪刀脚部，外力撤除后，主弹簧复位，带动键帽及剪刀脚部复位。
  23. 一种剪刀脚结构按键键盘，其特征在于，包括权利要求8至权利要求12所述的剪刀脚结构按键及具有电路板的底盘，所述剪刀脚结构按键设于所述底盘上。
  24. 根据权利要求24所述的剪刀脚结构按键的键盘，其特征在于，所述电路板上设有一层防护镀膜。
  25. 一种剪刀脚结构按键键盘，其特征在于，包括权利要求13至权利要求22所述的剪刀脚结构按键及具有电路板的底盘，所述剪刀脚结构按键设于所述底盘上。
  26. 根据权利要求25所述的剪刀脚结构按键的键盘，其特征在于，所述底盘包括由下至上设置的柔性电路板、防护板及安装面板；所述底座设置在安装面板上；所述光接收元件及光发射元件与柔性电路板连接。
  27. 根据权利要求26所述的剪刀脚结构按键键盘，其特征在于，所述光元件容置位为所述安装座的镂空结构，所述底座对应所述光发射元件与光接收元件设有镂空结构，所述光发射元件与光接收元件设置在安装面板上；所述防护板上对应光发射元件与光接收元件分别设有第一通孔。
  28. 根据权利要求27所述的剪刀脚结构按键键盘，其特征在于，所述凹部为贯穿安装座的结构，对应凹部，在所述安装面板与所述防护板上分别设有第二通孔。
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