WO2023201449A1 - Clé d'équilibrage ultra-mince - Google Patents

Clé d'équilibrage ultra-mince Download PDF

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Publication number
WO2023201449A1
WO2023201449A1 PCT/CN2022/000150 CN2022000150W WO2023201449A1 WO 2023201449 A1 WO2023201449 A1 WO 2023201449A1 CN 2022000150 W CN2022000150 W CN 2022000150W WO 2023201449 A1 WO2023201449 A1 WO 2023201449A1
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WO
WIPO (PCT)
Prior art keywords
wing
linkage
pivot
trigger
arm
Prior art date
Application number
PCT/CN2022/000150
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English (en)
Chinese (zh)
Inventor
陈爱华
Original Assignee
广东瑞讯电子科技有限公司
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Filing date
Publication date
Application filed by 广东瑞讯电子科技有限公司 filed Critical 广东瑞讯电子科技有限公司
Publication of WO2023201449A1 publication Critical patent/WO2023201449A1/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
    • H01H13/705—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/0816—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting 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

Definitions

  • the invention relates to a switch device, and in particular to an ultra-thin balanced button.
  • An input device is a device that inputs data and information into a computer. It is a bridge between the computer and the user or other devices, such as a keyboard.
  • the keyboard is composed of several key switches.
  • a photoelectric switch is a switch that changes the amount of light received by the light-receiving element from the light-emitting element through a grating to form a switching signal.
  • Patent No. 202111067452.8 The patent titled “An Ultra-Thin Balanced Press Photoelectric Key Structure” discloses a key structure that can effectively reduce the pressing distance. However, in this structure, a limit cover is used to fix the torsion spring, which increases accordingly. In order to reduce the production cost, it is still not streamlined enough. To solve this problem, this application proposes a new type of button structure.
  • the present invention aims to provide an ultra-thin balanced button that saves material and is stable in pressing.
  • the solution of the present invention is: an ultra-thin balanced key used to trigger electronic components arranged on a PCB board to generate signals, including a keycap, a bottom plate and a linkage member arranged between the keycap and the bottom plate.
  • the linkage component includes a linkage wing and a trigger wing that are pivotally connected to each other. Pivot arms extend from both sides of the linkage wing and the trigger wing. The end of the linkage wing's pivot arm and the end of the trigger wing's pivot arm are pivotally connected to each other.
  • each pivot arm is equipped with a limiting structure; the bottom plate is also equipped with a bracket member that cooperates with the limiting structure to limit the linkage member;
  • a tilting fulcrum abutting against the bottom plate is formed on the side of each pivot arm adjacent to the end facing the bottom plate;
  • the linkage component also includes a return tension spring, one end of which is connected to the linkage wing, and the other end is connected to the trigger wing;
  • the keycap is fastened to the upper part of the linkage wing and the trigger wing, and the trigger wing is provided with a trigger structure that triggers the electronic component to generate a signal.
  • one of the pivot arms of the linkage wing has a central positioning post on the outside and a pivot shaft on the inside, and the other pivot arm of the linkage wing has only a pivot hole on the end;
  • the end of one of the pivot arms has a central positioning post on the outside and a pivot shaft on the inside.
  • the end of the other pivot arm of the trigger wing has only a pivot hole;
  • the linkage wing and the trigger wing pass through their respective pivot shafts. It is coupled with the pivot hole of the other party to form a pivot relationship;
  • the support member is equipped with a center positioning slot relative to the center positioning column of the linkage wing and the triggering wing, which limits the position of the center positioning column in the left, right and downward directions. .
  • each pivot arm has a limiting protrusion on the outside adjacent to its end; the support member is provided with a limiting hole relative to the limit protrusion on each pivot arm, and the limit protrusion faces upwards. The direction is limited.
  • the maximum diameter of the limiting protrusion is smaller than the left and right width of the limiting hole, and the bottom of the limiting protrusion facing the bottom plate is configured as a ramp structure.
  • the bottom plate corresponding to the central positioning groove is provided with an escape groove that allows the end of the pivot arm to descend, and both sides of the central positioning groove are located in the escape groove and are configured with arcs that can limit the downward movement of the central positioning column. Support stand.
  • the force arms at both ends of the reset tension spring are provided with hooks
  • the linkage wing and the trigger wing are provided with connection holes for connecting hooks
  • the force arms at both ends of the reset tension spring are respectively fixed on the hooks. on the connection hole.
  • the electrical component is a light-to-tube assembly composed of a light-emitting component and a photosensitive component that is electrically connected to a PCB and the triggering structure is a grating plate constructed between the pivot arms on both sides of the triggering wing. , when the keycap is pressed, the grating plate of the trigger wing moves downward to change the light path between the light-emitting element and the photosensitive element.
  • the grating plate is a light-shielding plate, and the light-emitting element and the photosensitive element are located on both sides of the light-shielding plate.
  • the grating plate is a reflective plate, and the light-emitting element and the photosensitive element are located on the same side of the reflective plate.
  • a shelter column is provided at the bottom of the grating plate, and a shelter hole corresponding to the shelter column is provided on the bottom plate.
  • the electrical component is a Hall sensor that is electrically connected to a PCB board and the trigger structure is a magnetic component constructed between the pivot arms on both sides of the trigger wing.
  • the trigger wing When the keycap is pressed, the trigger wing The downward movement of the magnetic piece changes the magnetic flux received by the Hall sensor.
  • the keycap is provided with a pivot cavity for pivoting the top of the trigger wing and the linkage wing.
  • Pivot posts corresponding to the pivot cavity extend from both ends of the trigger wing and the linkage wing.
  • the trigger wing and the linkage wing The top of the wing is limited to the pivot cavity on the keycap through the pivot post.
  • the key also includes a sound-emitting mechanism for making a knocking sound when the key is pressed.
  • the sound-generating mechanism includes a sound-generating torsion spring installed on the pivot arm of the linkage wing.
  • the sound-generating torsion spring has a fixed arm and a sound-generating arm; the linkage wing is provided with a sound-generating power storage part corresponding to the sound-generating arm.
  • the bottom of the keycap is provided with a sounding pressure block corresponding to the sounding arm, the sounding power storage part has a sloped block part and a striking part located on the sloped block part, the sounding arm abuts on the sloped block part; when the key is pressed When the keycap is pressed, the sounding block exerts pressure on the sounding arm to accumulate force downward.
  • the sounding arm slides away from the sounding block under the action of the inclined block, resets upward, and hits the struck part to produce a knock.
  • the sounding arm resets.
  • the pivot arm on which the sounding torsion spring is installed has a torsion spring fixed column and a fixed arm limiter.
  • the sounding torsion spring is sleeved on the torsion spring fixed column, and the fixed arm of the sounding torsion spring abuts on the torsion spring fixed column.
  • the beneficial effects of the present invention are: the use of mutually pivoted trigger wings and linkage wings, combined with tension springs and other structures, reduces the limit cover structure, further reduces the up and down movement stroke on the premise of ensuring the balance and stability of pressing, and the linkage components The positioning and cooperation between them are stable, so that the button structure can be more material-saving and lighter; in addition, the button also has the function of outputting photoelectric signals and making sounds when pressed, providing users with a flat pressing feel, easy assembly and disassembly, and is suitable for industrial production Produce.
  • Figure 1 is an exploded view of the present invention
  • Figure 2 is a schematic structural diagram of the coupling seat in the present invention.
  • FIG. 3 is a schematic structural diagram of the keycap in the present invention.
  • Figure 4 is a schematic structural diagram of the linkage wing in the present invention.
  • Figure 5 is a schematic structural diagram of the trigger wing in the present invention.
  • Figure 6 is a reference diagram of the unpressed state of the linkage wing and the trigger wing in the present invention.
  • Figure 7 is a reference diagram of the pressing state of the linkage wing and the trigger wing in the present invention.
  • Figure 8 is a schematic diagram of the assembly structure of the bracket component and the linkage component in the present invention.
  • Figure 9 is a schematic diagram of the bottom structure of the trigger wing in the present invention.
  • bracket components 61 center positioning slot; 62 limit hole; 63 arc-shaped support frame; 64 avoidance slot;
  • the specific embodiment of the present application is an ultra-thin balanced key used to trigger electronic components provided on the PCB board 9 to generate signals, including a keycap 1, a bottom plate 2 and a linkage member provided between the keycap 1 and the bottom plate 2 , the PCB board 9 is provided on the base plate 2 and is designed according to the corresponding openings of the components and slots on the base plate 2.
  • the linkage member enables the keycap 1 to move downward synchronously when any position is pressed.
  • the linkage member includes linkage wings 3 that are pivoted to each other. and trigger wing 4. Pivot arms 5 extend on both sides of the linkage wing 3 and trigger wing 4.
  • the end of the pivot arm 5 of the linkage wing 3 and the end of the pivot arm 5 of the trigger wing 4 are pivoted to each other.
  • Each pivot arm 5 The arms 5 are equipped with a limiting structure; the base plate 2 is also provided with a bracket member 6 that cooperates with the limiting structure to limit the linkage components;
  • the linkage component also includes a reset tension spring 7.
  • One end of the reset tension spring 7 is connected to the linkage wing 3, and the other end is connected to the trigger wing 4.
  • Hooks 71 are provided on the force arms at both ends of the reset tension spring 7.
  • the linkage wing 3 and the trigger wing 4 are A connection hole 56 for connecting a hook 71 is provided on the spring body, and the force arms at both ends of the reset tension spring 7 are respectively connected to the connection hole 56 through the hook 71 .
  • the keycap 1 is fastened to the upper part of the linkage wing 3 and the trigger wing 4. When no external force is applied, the return tension spring 7 is in a contracted state, and the linkage wing 3 and the trigger wing 4 are pulled up. When the keycap 1 is pressed, the linkage The wing 3 and the triggering wing 4 move downward simultaneously, and the return tension spring 7 is elongated until the return tension spring 7 contracts and returns after letting go.
  • a tilting fulcrum 51 abutting on the bottom plate 2 is formed on the side of each pivot arm 5 adjacent to the end facing the base plate 2.
  • the limiting structure of the key pivot arm 5 includes a central positioning post 52 and a limiting protrusion 55.
  • one of the pivot arms 5 of the linkage wing 3 has a center positioning post 52 on the outside and a pivot post 52 on the inside.
  • Axis 53 the end of the other pivot arm 5 of the linkage wing 3 has only one pivot hole 54;
  • the end of one of the pivot arms 5 of the trigger wing 4 has a center positioning post 52 on the outside and a pivot shaft 53 on the inside.
  • the end of the other pivot arm 5 of the trigger wing 4 has only one pivot hole 54; the linkage wing 3 and the trigger wing 4 are coupled to each other's pivot hole 54 through their respective pivot shafts 53 to form a pivot relationship.
  • the support member 6 is provided with a central positioning groove 61 relative to the center positioning column 52 of the linkage wing 3 and the triggering wing 4 to limit the position of the center positioning column 52 in three directions: left, right and downward.
  • the central positioning groove 61 can prevent the end of the pivot arm 5 from shifting left and right.
  • the bottom plate 2 corresponding to the center positioning groove 61 has an opening to allow the pivot arm 5 to move.
  • the end of the downward-moving shelter groove 64 has an arc-shaped support frame 63 that can limit the downward movement of the center positioning column 52 and allow the center positioning column 52 to fall to the arc-shaped support frame on both sides of the center positioning groove 61.
  • the end of the pivot arm 5 falls into the avoidance groove 64 , and the arc-shaped support frame 63 can limit the bottom of the central positioning column 52 to prevent the end of the pivot arm 5 from sliding downward.
  • the end of the arm 5 plays a role in avoiding the air and prevents the end of the pivot arm 5 from hitting the bottom plate 2 .
  • the limiting protrusion 55 is located outside the adjacent end of each pivot arm 5.
  • the bracket member 6 is provided with a limiting hole 62 relative to the limiting protrusion 55 on each pivot arm 5.
  • the limiting protrusion 55 The position is limited in the upward direction, so that when the pivot arm 5 tilts upward around the tilting fulcrum 51 , the limiting protrusion on the pivot arm 5 is always limited in the limiting hole 62 .
  • the bottom of the limiting protrusion 55 facing the bottom plate 2 is configured as a ramp structure, so that it can rotate more smoothly in the limiting hole 62.
  • the limiting protruding column 55 can be directly aligned with the limiting hole 62 and inserted into the locking position.
  • the key of the present application can be configured as a photoelectric key capable of outputting a photoelectric signal.
  • the electrical component of the key is a light-to-tube assembly 8 composed of a light-emitting element and a photosensitive element and is electrically connected to a PCB board 9.
  • the triggering structure is There is a grating plate between the pivot arms 5 on both sides of the trigger wing 4. When the keycap is pressed, the grating plate 4 of the trigger wing moves downward to change the light path between the light-emitting element and the photosensitive element, thereby outputting a photoelectric signal.
  • the grating plate of the photoelectric key is preferably a light-shielding plate 41.
  • the light-emitting element and the photosensitive element are located on both sides of the light-shielding plate 41.
  • a light path is formed between the light-emitting element and the photosensitive element.
  • the light-shielding plate 41 moves downward to change the distance between the light-emitting element and the photosensitive element. light path.
  • the grating plate of the photoelectric key is preferably a reflective plate.
  • the light-emitting element and the photosensitive element are located on the same side of the reflective plate. When the reflective plate goes down, the light emitted by the light-emitting element is reflected by the reflective plate to the photosensitive element to form a light path.
  • an escape column 42 is provided at the bottom of the grating plate, and the bottom plate 2 is provided with an escape hole 21 corresponding to the avoidance column 42 .
  • the button of the present application can be configured as an electromagnetic button capable of outputting electromagnetic signals.
  • the electrical component is a patch electrically connected Hall sensor provided on the PCB board 9 .
  • the trigger structure is configured between the pivot arms 5 on both sides of the trigger wing 4 . When the keycap is pressed, the magnetic part of the trigger wing 4 moves downward to change the magnetic flux received by the Hall sensor.
  • the keycap 1 is provided with a pivot cavity 12 at the top of the trigger wing 4 and the linkage wing 3.
  • the two ends of the trigger wing 4 and the linkage wing 3 have pivot joints corresponding to the pivot cavity 12.
  • the tops of the trigger wing 4 and the linkage wing 3 are limited to the pivot cavity 12 on the keycap 1 through the pivot post.
  • the pivot cavity 12 can prevent the linkage wing 3 and the trigger wing 4 from moving upward due to reset.
  • the keycap 1 caused by the reduction in size will shake left and right due to the movement gap.
  • This button can be used as a silent or sounding button.
  • the button also includes a sounding mechanism for making a knocking sound when the button is pressed.
  • the sounding mechanism includes a sounding torsion spring 31 installed on the pivot arm of the linkage wing 3.
  • the sounding torsion spring 31 has a fixed arm 311 and a sounding arm 312;
  • the linkage wing 3 is configured with a sounding power storage part 32 corresponding to the sounding arm 312, and the bottom of the keycap 1 is configured with a sounding pressure block 11 corresponding to the sounding arm 312, and the sounding storage part 32 is configured with a sounding pressure block 11 corresponding to the sounding arm 312.
  • the force part 32 has an inclined block part 321 and a striking part 322 located on the inclined block part 321.
  • the sound-generating arm 312 abuts on the inclined block part 321; when the keycap 1 is pressed, the sound-generating pressing block 11 applies pressure to the sound-generating arm 312. It accumulates force downward, and when the keycap 1 is pressed to a certain stroke, the sound-generating arm 312 slides away from the sound-generating pressing block 11 under the action of the inclined block part 321 and returns upward to hit the hit part 322 to make a knocking sound. When the keycap is released, 1. When the sound-generating pressing block 11 moves up to leave the sound-generating arm 312, the sound-generating arm 312 resets.
  • the sounding torsion spring 31 is fixed on the pivot arm 5 through the torsion spring fixed column 33 and the fixed arm limiter 33.
  • the sounding torsion spring 31 is sleeved on the torsion spring fixed column 33.
  • the fixation of the sounding torsion spring 31 The arm 311 abuts on the fixed arm limiting block 33 .

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Push-Button Switches (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)

Abstract

La présente invention concerne une clé d'équilibrage ultra-mince qui est utilisée pour déclencher un élément électronique disposé sur une carte de circuit imprimé afin de générer un signal. La clé d'équilibrage ultra-mince comprend un capuchon de clé, une plaque de fond et un composant de liaison disposé entre le capuchon de clé et la plaque de fond. Le composant de liaison comprend une aile de liaison et une aile de déclenchement qui sont pivotées l'une vers l'autre ; deux côtés de l'aile de liaison et de l'aile de déclenchement s'étendent chacun pour former des bras de pivotement ; les extrémités arrière des bras pivotants de l'aile de liaison sont amenées à pivoter vers les extrémités arrière des bras pivotants de l'aile de déclenchement, et chaque bras pivotant est pourvu d'une structure de limitation ; la plaque de fond est pourvue d'un composant de support correspondant à la structure de limitation pour limiter le composant de liaison ; et un pivot d'amorçage en butée contre la plaque de fond est formé sur un côté, qui fait face à la plaque de fond, de la position de chaque bras pivotant située à proximité de l'extrémité arrière. Le recours à l'aile de déclenchement et à l'aile de liaison, qui sont amenées à pivoter l'une vers l'autre, permet de réduire des structures telles qu'une plaque de couvercle de limitation. Afin d'assurer une compression équilibrée et stable, la course de déplacement de haut en bas est encore réduite, les composants de liaison sont positionnés et coopèrent de manière stable, ce qui permet d'économiser davantage de matériaux de la structure de clé et de réduire l'épaisseur de celle-ci.
PCT/CN2022/000150 2022-04-18 2022-11-17 Clé d'équilibrage ultra-mince WO2023201449A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202210404337.3A CN114864319A (zh) 2022-04-18 2022-04-18 超薄平衡按键
CN202210404337.3 2022-04-18

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WO2023201449A1 true WO2023201449A1 (fr) 2023-10-26

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TW (1) TWM643972U (fr)
WO (1) WO2023201449A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114864319A (zh) * 2022-04-18 2022-08-05 广东瑞讯电子科技有限公司 超薄平衡按键

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6005209A (en) * 1997-11-24 1999-12-21 International Business Machines Corporation Thin keyboard having torsion bar keyswitch hinge members
CN109767947A (zh) * 2019-01-27 2019-05-17 东莞市凯华电子有限公司 一种超薄机械按键开关
CN110729145A (zh) * 2019-11-18 2020-01-24 深圳市航世科技有限公司 一种剪刀脚结构的按键及应用该按键的键盘
CN213877895U (zh) * 2020-12-29 2021-08-03 东莞市凯华电子有限公司 一种应用于键盘开关的组合触发式导通发声机构
CN113644906A (zh) * 2021-09-13 2021-11-12 广东瑞讯电子科技有限公司 超薄平衡按压光电按键结构
CN215731437U (zh) * 2021-05-20 2022-02-01 东莞市凯华电子有限公司 一种增加按压手感的光电式按键开关
CN114864319A (zh) * 2022-04-18 2022-08-05 广东瑞讯电子科技有限公司 超薄平衡按键

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6005209A (en) * 1997-11-24 1999-12-21 International Business Machines Corporation Thin keyboard having torsion bar keyswitch hinge members
CN109767947A (zh) * 2019-01-27 2019-05-17 东莞市凯华电子有限公司 一种超薄机械按键开关
CN110729145A (zh) * 2019-11-18 2020-01-24 深圳市航世科技有限公司 一种剪刀脚结构的按键及应用该按键的键盘
CN213877895U (zh) * 2020-12-29 2021-08-03 东莞市凯华电子有限公司 一种应用于键盘开关的组合触发式导通发声机构
CN215731437U (zh) * 2021-05-20 2022-02-01 东莞市凯华电子有限公司 一种增加按压手感的光电式按键开关
CN113644906A (zh) * 2021-09-13 2021-11-12 广东瑞讯电子科技有限公司 超薄平衡按压光电按键结构
CN114864319A (zh) * 2022-04-18 2022-08-05 广东瑞讯电子科技有限公司 超薄平衡按键

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