WO2018188484A1 - 一种具有高平衡性的超薄轻触按键开关 - Google Patents

一种具有高平衡性的超薄轻触按键开关 Download PDF

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Publication number
WO2018188484A1
WO2018188484A1 PCT/CN2018/080912 CN2018080912W WO2018188484A1 WO 2018188484 A1 WO2018188484 A1 WO 2018188484A1 CN 2018080912 W CN2018080912 W CN 2018080912W WO 2018188484 A1 WO2018188484 A1 WO 2018188484A1
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Prior art keywords
balance
arm portion
core
disposed
ultra
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PCT/CN2018/080912
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English (en)
French (fr)
Inventor
吴福喜
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东莞市凯华电子有限公司
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Publication of WO2018188484A1 publication Critical patent/WO2018188484A1/zh

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    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/058—Actuators to avoid tilting or skewing of contact area or actuator

Definitions

  • the invention relates to a touch button switch, in particular to an ultra-thin touch button switch with high balance.
  • an object of the present invention is to provide an ultra-thin touch button switch having high balance, which has better balance effect, stronger stability, and improved overall stability during pressing.
  • An ultra-thin light touch button switch having a high balance comprising a base, the upper surface of the base is provided with a receiving groove, and the receiving groove is provided with a conducting component
  • the utility model further comprises: a silicon core guide on the groove, an X-type balance frame disposed on the base and surrounding the periphery of the silicone core, and an upper guide core disposed on the silicone core and located inside the X-type balance frame, wherein the X
  • the balance frame is mainly formed by a balance bar A and a balance bar B.
  • the balance bar A and the balance bar B are closed frame structures, and the X-type balance frame is a closed structure around the whole; the balance The rod A and the balance bar B intersect to form two intersections, the two intersections divide the X-type balance frame into a lower embedded portion embedded in the receiving groove, and an upper swing portion disposed on the base, and under the The end portion of the inserting portion is provided with a positioning block that is inserted into the bottom of the receiving groove; on the opposite outer side edges of the upper guiding core, an upper guiding shaft extending below the upper swinging portion is disposed; The core, the upper guide core, the X-type balance frame and the base cooperate with each other on the upper guide core During the lower pressing process, the upper swinging portion of the X-type balance frame is driven to swing up and down to provide a balancing force for the upper and lower pressing processes of the upper guiding core.
  • the silica gel guiding core has a hollow hemisphere shape, and a concave point is recessed downward at a center position of the upper end of the silicon guiding core; the lower end surface of the lower guiding core is provided with an upper end of the silicon guiding core The lower groove is engaged, and a lower bump that is caught in the lower concave point is convexly protruded downward on the lower groove.
  • the accommodating groove includes a downwardly recessed inner card slot, and a large ring groove which is disposed outside the inner card slot and is embedded in the lower embedded portion of the X-type balance frame; One end of the slot is provided with a large block, and the other end is provided with a small block, so that the large ring groove is divided into a first retaining groove between the inner card slot and the small card block, and is located between the inner card slot and the large card block.
  • the lower embedding portion of the X-shaped gimbal is embedded in the first yielding slot and the second retaining slot, and the lower embedding end The positioning card of the part is snapped into the small card slot.
  • an embedding platform is protruded upwardly in the inner card slot, and an annular boss is disposed on the outer periphery of the embedding platform, and an outer edge of the lower end of the silicone core is embedded in the outer periphery of the annular boss. Annular groove.
  • the conduction component comprises a static piece embedded in the base, and a conductive elastic piece disposed on the embedded platform and located above the static piece, wherein the static piece has two external static contacts, And a central static contact between the two external static contacts; the conductive elastic piece is provided with a PI film, and the conductive elastic piece is arched upward in the middle, and the outer edge of the conductive elastic piece is located on two external static contacts and two An external static contact is in contact, and the middle portion of the conductive elastic piece is located above the neutral contact.
  • the balance bar A includes a first U-shaped frame, and a first cross bar that is horizontally located at the rear end opening of the first U-shaped frame and is movable in the first release groove.
  • a first insertion shaft is disposed on the opposite inner wall of the first U-shaped frame;
  • the balance bar B includes a second U-shaped frame, and is disposed transversely to the rear end opening of the second U-shaped frame and is movable in the second retaining groove
  • the second crossbar is respectively provided with an insertion hole on the opposite outer wall of the second U-shaped frame; the rear end of the second U-shaped frame is inserted into the first U-shaped frame, and the insertion on the inner wall of the first U-shaped frame
  • the shaft is inserted into a socket on the outer wall of the second U-shaped frame to form the intersection.
  • the first U-shaped frame includes a first horizontal axis, and a first arm disposed at two ends of the first horizontal axis and extending in the same direction, wherein the first arm is mainly composed of a first upper arm portion, a first lower arm portion, and a first connecting portion connected between the first upper arm portion and the first lower arm portion, the first horizontal axis and the first upper portion
  • the arm portions are combined to form the upper swing portion on the balance bar A, and the first connecting portion and the first lower arm portion are combined to form the lower insert portion on the balance bar A, the plug shaft is disposed on
  • the first crossbar is disposed on the inner side of the first connecting portion, the first crossbar is disposed on the first lower arm portion, and the positioning block on the balance bar A is located at the end of the first lower arm portion
  • the second U-shaped bracket includes a second horizontal axis, and a second arm disposed at two ends of the second horizontal axis and extending in the same direction, wherein the second arm is mainly composed
  • the first upper arm portion, the first lower arm portion, the second upper arm portion and the second lower arm portion have the same width, and the width of the first connecting portion is different from The sum of the widths of the second connecting portions is equal to the width of the first upper arm portion.
  • the first upper arm end has a first inner inclined surface
  • the second connecting end has a second inner inclined surface matching the first inner inclined surface
  • the ends of the upper arm portions have a first outer inclined surface
  • the first connecting portion ends have a second outer inclined surface that matches the first outer inclined surface
  • the outer side wall of the first connecting portion is provided with a limiting shaft
  • the inner wall of the receiving groove is provided with a limiting hole for inserting the limiting shaft
  • the inner wall of the small card slot is opened for positioning The card hole that is jammed at the end of the block.
  • the movable embedding space is provided for the lower embedding portion of the X-type balance frame, which is advantageous for improving the pressure balance stability of the touch button switch.
  • Figure 1 is an exploded view of the present invention
  • FIG. 2 is a schematic view showing the overall structure of the present invention in a natural state
  • Figure 3 is a partial structural view of the present invention.
  • FIG. 4 is a schematic structural view of a silica gel guide core according to the present invention.
  • Figure 5 is a schematic structural view of the upper guiding core of the present invention.
  • Figure 6 is a schematic structural view of a susceptor of the present invention.
  • FIG. 7 is a schematic structural view of the balance bar A of the present invention.
  • Figure 8 is a schematic view showing the structure of the balance bar B of the present invention.
  • an embodiment of the present invention provides an ultra-thin touch button switch having a high balance, including a pedestal 1 , and an accommodating groove 11 is defined in an upper surface of the pedestal 1 .
  • a conduction component 2 is provided inside.
  • the ultra-thin touch button switch of the embodiment further includes a silicon dioxide core 3 disposed on the receiving groove 11, an X-type balance frame 4 disposed on the base 1 and surrounding the periphery of the silicone core 3, and The upper core 5 of the lead core 3 and located inside the X-shaped balance frame 4, wherein the X-type balance frame 4 is mainly formed by a balance bar A 41 and a balance bar B 42 which is arranged to cross the balance bar A 41
  • the balance bar B 42 is a closed frame structure, and the X-shaped balance frame 4 is a closed-end structure as a whole; the balance bar A 41 and the balance bar B 42 intersect to form two intersections 43 , the two crosses Point 43 divides the X-type gimbal 4 into a lower fitting portion 44 that is fitted into the accommodating groove 11, and an upper oscillating portion 45 that is provided on the susceptor 1, and a snap-in accommodation is provided at an end of the lower fitting portion 44.
  • the X-type balance frame 4 cooperates with the base 1 to drive the upper swinging portion 45 of the X-type balance frame 4 up and down during the upper and lower pressing of the upper guide core 5. Providing a balanced force to the upper and lower guide core 5 to the pressing process.
  • the silicone core 3 has a hollow hemisphere shape, and a concave point 31 is recessed downward at a center position of the upper end of the silica core 3; the lower end of the lower core 5 is opened.
  • the accommodating groove 11 includes a downwardly recessed inner card slot 111 and a large ring groove 112 which is disposed outside the inner card slot 111 and is embedded in the lower insertion portion 44 of the X-type gimbal 4 .
  • the receiving slot 11 is provided with a large latching block 6 at one end and a small latching block 7 at the other end, so that the large annular slot 112 is divided into a first retaining slot between the inner latching slot 111 and the small latching block 7.
  • the lower embedding portion 44 of the X-shaped gimbal 4 is embedded in the A positioning slot 1121 and a second retaining slot 1122, and the positioning block 441 at the end of the lower fitting portion 44 are snapped into the small card slot 1123.
  • an embedded platform 113 is protruded upwardly in the inner card slot 111, and an annular boss 114 is disposed on the outer periphery of the embedded platform 113, and a silicone guide is formed on the periphery of the annular boss 114.
  • An annular groove 115 is embedded in the outer edge of the lower end of the core 3.
  • the conduction component 2 includes a static piece 21 embedded in the base 1 and a conductive elastic piece 22 disposed on the embedded platform 113 and located above the static piece 21 , wherein the static piece 21 has Two outer static contacts 211 and a middle static contact 212 between the two outer static contacts 211; the conductive elastic piece 22 is provided with a PI film 8 , and the conductive elastic piece 22 is arched upward in the middle, the conductive elastic piece The outer edge of the outer cover 211 is located on the two outer static contacts 211 and is in contact with the two outer static contacts 211. The middle portion of the conductive elastic piece 22 is located above the neutral contact 212.
  • the balance bar A 41 includes a first U-shaped frame 411 and a second portion that is horizontally disposed at the rear end opening of the first U-shaped frame 411 and is movable in the first release slot 1121.
  • a cross bar 412 is disposed on the opposite inner wall of the first U-shaped frame 411, respectively.
  • the balance bar B 42 includes a second U-shaped frame 421 and is disposed transversely to the second U-shaped frame 421.
  • the first U-shaped frame 411 includes a first horizontal axis 4112 and a first arm 4113 disposed at two ends of the first horizontal axis 4112 and extending in the same direction.
  • the first arm 4113 is mainly composed of a first An upper arm portion 41131, a first lower arm portion 41132, and a first connecting portion 41133 connected between the first upper arm portion 41131 and the first lower arm portion 41132, the first horizontal axis 4112
  • the upper swinging portion 45 on the balance bar A 41 is formed in combination with the first upper arm portion 41131, and the first connecting portion 41133 is combined with the first lower arm portion 41132 to form a portion on the balance bar A 41.
  • the insertion portion 44 is disposed on the inner side of the first connecting portion 41133.
  • the first cross bar 412 is disposed on the first lower arm portion 41132.
  • the second U-shaped frame 421 includes a second horizontal axis 4212, and a second arm 4213 disposed at two ends of the second horizontal axis 4212 and extending in the same direction.
  • the second arm 4213 is mainly composed of a second upper arm portion 42131, a second lower arm portion 42132, and a second upper arm portion 42131.
  • a second connecting portion 42133 between the second lower arm portions 42132, the second horizontal shaft 4212 and the second upper arm portion 42131 are combined to form the upper swing portion 45 on the balance bar B 42.
  • the second connecting portion 42133 is combined with the second lower arm portion 42132 to form the lower fitting portion 44 on the balance bar B 42 .
  • the insertion hole 4211 is disposed on the outer side of the second connecting portion 42133 .
  • the rod 422 is disposed on the second lower arm portion 42132, and the positioning block 441 on the balance bar B 42 is located at the end of the second lower arm portion 42132.
  • the widths of the first upper arm portion 41131, the first lower arm portion 41132, the second upper arm portion 42131, and the second lower arm portion 42132 are the same, and the width of the first connecting portion 41133 is the same as the second The sum of the widths of the connecting portions 42133 is equal to the width of the first upper arm portion 41131.
  • the first upper arm portion 41131 has a first inner inclined surface 411311 at the end, and the second connecting portion 42133 has a second inner inclined surface 421331 matching the first inner inclined surface 411311; the second The upper arm portion 42131 has a first outer inclined surface 421311 at its end, and the first connecting portion 41133 has a second outer inclined surface 411331 matching the first outer inclined surface 421311.
  • a limiting hole 411332 is defined in the outer wall of the first connecting portion 41133, and a limiting hole 116 is defined in the inner wall of the receiving slot 11 for inserting the limiting shaft 411332.
  • the inner wall of the small card slot 1123 is provided with a positioning card.
  • the card hole 11231 in which the end of the block 441 is stuck.
  • the ultra-thin touch button switch provided in this embodiment is small in size, and is a light touch button switch that can be applied to a smaller use space, and can be used with the upper key cap.
  • the working principle of the present invention is as follows: as shown in FIG. 2, the touch button switch is in a natural state. At this time, the middle portion of the conductive elastic piece 22 of the conduction component 2 does not contact the middle static contact 212 of the static piece 21, and therefore, the touch The button switch is in the off state; after the upper keycap is pressed, as long as the keycap is pressed down, the upper core 5 and the X-type balance frame 4 are moved downward by the downward force, during the downward movement of the upper core 5 Applying a force to the silicone core 3 to deform the silicone core 3, so that the silicone core 3 drives the central portion of the conductive elastic piece 22 to be concave and concave, so that the middle portion of the conductive elastic piece 22 and the static contact of the static piece 21 212 contact, the touch button switch is in the on state; when releasing the downward force on the upper guide core 3 and the X-type balance frame 4, under the elastic restoring force of the silicone core 3, the silicone core 3 During the process of returning to the natural state, the upper
  • the main focus of the invention is:
  • the movable embedding space is provided for the lower embedding portion of the X-type balance frame, which is advantageous for improving the pressure balance stability of the touch button switch.

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Abstract

一种具有高平衡性的超薄轻触按键开关，包括带容置槽(11)的基座(1)、设于容置槽内的导通组件(2)、设于容置槽上的硅胶导芯(3)、围设于硅胶导芯外的X型平衡架(4)、及设于X型平衡架内侧的上导芯(5)，X型平衡架由平衡杆A(41)与平衡杆B(42)交叉设置而成，平衡杆A与平衡杆B均为封闭型框架结构，且X型平衡架整体为四周封闭型结构；平衡杆A与平衡杆B交叉后形成两个交叉点(43)，两个交叉点将X型平衡架分成嵌入容置槽的下嵌入部(44)、及设于基座上的上摆动部(45)，且在下嵌入部的端部设有卡入容置槽内底部的定位卡块(441)；在上导芯相对的两外侧边上设置有延伸至上摆动部下方的上导引轴(51)。该超薄轻触按键开关，在按压过程中，平衡效果更好，平稳性更强，整体稳定性提高。

Description

一种具有高平衡性的超薄轻触按键开关 技术领域
本发明涉及一种轻触按键开关，尤其涉及一种具有高平衡性的超薄轻触按键开关。
背景技术
现有设备的很多操作需要使用到轻触按键开关作为输入手段，轻触按键开关好坏决定了输入设备的体验，需要保证良好的手感和使用寿命，同时在使用过程中的稳定性也具有很高的要求，不能出现卡角状况，而这些技术问题都在不断地改进过程中，但仍然不够理想。
现有的轻触按键开关在按压过程中，各内部结构配合不紧密，相互作用不协调，按压不平稳，稳定性低。
发明内容
针对上述不足，本发明的目的在于提供一种具有高平衡性的超薄轻触按键开关，在按压过程中，平衡效果更好，平稳性更强，整体稳定性提高。
本发明为达到上述目的所采用的技术方案是：
一种具有高平衡性的超薄轻触按键开关，包括基座，该基座上表面开设有一容置槽，该容置槽内设置有导通组件，其特征在于，还包括设置于容置槽上的硅胶导芯、设置于基座上且围设于硅胶导芯外围的X型平衡架、及设置于硅胶导芯上且位于X型平衡架内侧的上导芯，其中，所述X型平衡架主要由一平衡杆A与一平衡杆B交叉设置而成，该平衡杆A与平衡杆B均为封闭型框架结构，且该X型平衡架整体为四周封闭型结构；所述平衡杆A与平衡杆B交叉后形成两个交叉点，该两个交叉点将X型平衡架分成嵌入容置槽内的下嵌入部、及设置于基座上的上摆动部，且在该下嵌入部的端部设置有卡入容置槽内底部的定位卡块；在所述上导芯相对的两外侧边上设置有延伸至上摆动部下方的上导引轴；通过所述硅胶导芯、上导芯、X型平衡架与 基座相配合作用，在上导芯的上下按压过程中，带动X型平衡架的上摆动部上下摆动，为上导芯的上下按压过程提供平衡作用力。
作为本发明的进一步改进，所述硅胶导芯呈空心半球体状，且该硅胶导芯上端中心位置处向下凹设有一下凹点；所述下导芯下端面开设有供硅胶导芯上端卡入的下凹槽，且在该下凹槽上向下凸设有卡入下凹点中的下凸点。
作为本发明的进一步改进，所述容置槽包括向下凹设的内卡槽、及环设于内卡槽外侧且供X型平衡架的下嵌入部嵌入的大环槽；所述容置槽内一端设置有一大卡块，另一端设置有一小卡块，使该大环槽分成位于内卡槽与小卡块之间的第一让位槽、位于内卡槽与大卡块之间的第二让位槽、及位于四个边角处的小卡槽；所述X型平衡架的下嵌入部嵌入于第一让位槽与第二让位槽中，且该下嵌入部端部的定位卡块卡入小卡槽中。
作为本发明的进一步改进，在所述内卡槽内向上凸设有一嵌入平台，在该嵌入平台外围环设有一环形凸台，并在该环形凸台外围形成供硅胶导芯下端外缘嵌入的环形槽。
作为本发明的进一步改进，所述导通组件包括嵌入于基座内的静片、及设置于嵌入平台上且位于静片上方的导电弹片，其中，该静片上具有两个外静触点、及位于两个外静触点之间的中静触点；该导电弹片上设置有一PI膜，且该导电弹片中部向上拱起，该导电弹片外缘位于两个外静触点上并与两个外静触点接触，该导电弹片中部位于中静触点上方。
作为本发明的进一步改进，所述平衡杆A包括一第一U型架、及横置于第一U型架后端开口处且活动于第一让位槽中的第一横杆，在该第一U型架相对的内壁上分别设置有一插轴；所述平衡杆B包括一第二U型架、及横置于第二U型架后端开口处且活动于第二让位槽中的第二横杆，在该第二U型架相对的外壁上分别设置有一插孔；该第二U型架后端插入第一U型架内，且该第一U型架内壁上的插轴插入第二U型架外壁上的插孔中，形成所述交叉点。
作为本发明的进一步改进，所述第一U型架包括第一横轴、及设置于第一横轴两端且向同一方向延伸设置的第一支臂，其中，该第一支臂主要由一 第一上支臂部、第一下支臂部、及连接于第一上支臂部与第一下支臂部之间的一第一连接部组成，该第一横轴与第一上支臂部相结合形成位于平衡杆A上的所述上摆动部，该第一连接部与第一下支臂部相结合形成位于平衡杆A上的所述下嵌入部，该插轴设置于第一连接部内侧边上，该第一横杆设置于第一下支臂部上，该平衡杆A上的定位卡块位于第一下支臂部端部；所述第二U型架包括第二横轴、及设置于第二横轴两端且向同一方向延伸设置的第二支臂，其中，该第二支臂主要由一第二上支臂部、第二下支臂部、及连接于第二上支臂部与第二下支臂部之间的一第二连接部组成，该第二横轴与第二上支臂部相结合形成位于平衡杆B上的所述上摆动部，该第二连接部与第二下支臂部相结合形成位于平衡杆B上的所述下嵌入部，该插孔设置于第二连接部外侧边上，该第二横杆设置于第二下支臂部上，该平衡杆B上的定位卡块位于第二下支臂部端部。
作为本发明的进一步改进，所述第一上支臂部、第一下支臂部、第二上支臂部与第二下支臂部的宽度均相同，所述第一连接部的宽度与第二连接部的宽度之和等于第一上支臂部的宽度。
作为本发明的进一步改进，所述第一上支臂部端部具有第一内倾斜面，所述第二连接部端部具有与第一内倾斜面相匹配的第二内倾斜面；所述第二上支臂部端部具有第一外倾斜面，所述第一连接部端部具有与第一外倾斜面相匹配的第二外倾斜面。
作为本发明的进一步改进，所述第一连接部外侧壁上设置有限位轴，所述容置槽内壁上开设有供限位轴插入的限位孔，所述小卡槽内壁上开设供定位卡块端部卡入的卡孔。
本发明的有益效果为：
(1)通过采用整体呈四周封闭型结构的X型平衡架、上导芯与硅胶导芯及基座相配合作用，在按压力消失时，采用硅胶导芯来带动上导芯上移，再由上导芯带动X型平衡架上移的方式，充分利用轻触按键开关内部有限的空间，为轻触按键开关的上下按压过程提供平衡作用力，平衡功能明显增强，平衡效果更好，平稳性更强，整体稳定性提高，同时，使轻触按键开关内部 结构实现各项力能；
(2)将传统单一上盖分成大卡块与小卡块，使硅胶导芯外侧边与大卡块之间、及硅胶导芯外侧边与小卡块之间分别形成让位槽，为X型平衡架的下嵌入部提供活动让位空间，利于提高轻触按键开关的按压平衡稳定性。
上述是发明技术方案的概述，以下结合附图与具体实施方式，对本发明做进一步说明。
附图说明
图1为本发明的爆炸图；
图2为本发明处于自然状态的整体结构示意图；
图3为本发明的部分结构示意图；
图4为本发明硅胶导芯的结构示意图；
图5为本发明上导芯的结构示意图；
图6为本发明基座的结构示意图；
图7为本发明平衡杆A的结构示意图；
图8为本发明平衡杆B的结构示意图。
具体实施方式
为更进一步阐述本发明为达到预定目的所采取的技术手段及功效，以下结合附图及较佳实施例，对本发明的具体实施方式详细说明。
请参照图1至图8，本发明实施例提供一种具有高平衡性的超薄轻触按键开关，包括基座1，该基座1上表面开设有一容置槽11，该容置槽11内设置有导通组件2。本实施例超薄轻触按键开关还包括设置于容置槽11上的硅胶导芯3、设置于基座1上且围设于硅胶导芯3外围的X型平衡架4、及设置于硅胶导芯3上且位于X型平衡架4内侧的上导芯5，其中，所述X型平衡架4主要由一平衡杆A 41与一平衡杆B 42交叉设置而成，该平衡杆A 41与平衡杆B 42均为封闭型框架结构，且该X型平衡架4整体为四周封闭型结构；所述平衡杆A 41与平衡杆B 42交叉后形成两个交叉点43，该两个交叉点43将X型平衡架4分成嵌入容置槽11内的下嵌入部44、及设置于基座1上的上摆动部45，且在该下嵌入部44的端部设置有卡入容置槽11内底部 的定位卡块441；在所述上导芯5相对的两外侧边上设置有延伸至上摆动部45下方的上导引轴51；通过所述硅胶导芯3、上导芯5、X型平衡架4与基座1相配合作用，在上导芯5的上下按压过程中，带动X型平衡架4的上摆动部45上下摆动，为上导芯5的上下按压过程提供平衡作用力。
如图4与图5所示，所述硅胶导芯3呈空心半球体状，且该硅胶导芯3上端中心位置处向下凹设有一下凹点31；所述下导芯5下端面开设有供硅胶导芯3上端卡入的下凹槽52，且在该下凹槽52上向下凸设有卡入下凹点31中的下凸点521。
如图6所示，所述容置槽11包括向下凹设的内卡槽111、及环设于内卡槽111外侧且供X型平衡架4的下嵌入部44嵌入的大环槽112；所述容置槽11内一端设置有一大卡块6，另一端设置有一小卡块7，使该大环槽112分成位于内卡槽111与小卡块7之间的第一让位槽1121、位于内卡槽111与大卡块6之间的第二让位槽1122、及位于四个边角处的小卡槽1123；所述X型平衡架4的下嵌入部44嵌入于第一让位槽1121与第二让位槽1122中，且该下嵌入部44端部的定位卡块441卡入小卡槽1123中。
同时，如图6所示，在所述内卡槽111内向上凸设有一嵌入平台113，在该嵌入平台113外围环设有一环形凸台114，并在该环形凸台114外围形成供硅胶导芯3下端外缘嵌入的环形槽115。
如图1所示，所述导通组件2包括嵌入于基座1内的静片21、及设置于嵌入平台113上且位于静片21上方的导电弹片22，其中，该静片21上具有两个外静触点211、及位于两个外静触点211之间的中静触点212；该导电弹片22上设置有一PI膜8，且该导电弹片22中部向上拱起，该导电弹片22外缘位于两个外静触点211上并与两个外静触点211接触，该导电弹片22中部位于中静触点212上方。
如图7与图8所示，所述平衡杆A 41包括一第一U型架411、及横置于第一U型架411后端开口处且活动于第一让位槽1121中的第一横杆412，在该第一U型架411相对的内壁上分别设置有一插轴4111；所述平衡杆B 42包括一第二U型架421、及横置于第二U型架421后端开口处且活动于第二 让位槽1122中的第二横杆422，在该第二U型架421相对的外壁上分别设置有一插孔4211；该第二U型架421后端插入第一U型架411内，且该第一U型架411内壁上的插轴4111插入第二U型架421外壁上的插孔4211中，形成所述交叉点43。
所述第一U型架411包括第一横轴4112、及设置于第一横轴4112两端且向同一方向延伸设置的第一支臂4113，其中，该第一支臂4113主要由一第一上支臂部41131、第一下支臂部41132、及连接于第一上支臂部41131与第一下支臂部41132之间的一第一连接部41133组成，该第一横轴4112与第一上支臂部41131相结合形成位于平衡杆A 41上的所述上摆动部45，该第一连接部41133与第一下支臂部41132相结合形成位于平衡杆A 41上的所述下嵌入部44，该插轴4111设置于第一连接部41133内侧边上，该第一横杆412设置于第一下支臂部41132上，该平衡杆A 41上的定位卡块441位于第一下支臂部41132端部；所述第二U型架421包括第二横轴4212、及设置于第二横轴4212两端且向同一方向延伸设置的第二支臂4213，其中，该第二支臂4213主要由一第二上支臂部42131、第二下支臂部42132、及连接于第二上支臂部42131与第二下支臂部42132之间的一第二连接部42133组成，该第二横轴4212与第二上支臂部42131相结合形成位于平衡杆B 42上的所述上摆动部45，该第二连接部42133与第二下支臂部42132相结合形成位于平衡杆B 42上的所述下嵌入部44，该插孔4211设置于第二连接部42133外侧边上，该第二横杆422设置于第二下支臂部42132上，该平衡杆B 42上的定位卡块441位于第二下支臂部42132端部。
所述第一上支臂部41131、第一下支臂部41132、第二上支臂部42131与第二下支臂部42132的宽度均相同，所述第一连接部41133的宽度与第二连接部42133的宽度之和等于第一上支臂部41131的宽度。
所述第一上支臂部41131端部具有第一内倾斜面411311，所述第二连接部42133端部具有与第一内倾斜面411311相匹配的第二内倾斜面421331；所述第二上支臂部42131端部具有第一外倾斜面421311，所述第一连接部41133端部具有与第一外倾斜面421311相匹配的第二外倾斜面411331。
所述第一连接部41133外侧壁上设置有限位轴411332，所述容置槽11内壁上开设有供限位轴411332插入的限位孔116，所述小卡槽1123内壁上开设供定位卡块441端部卡入的卡孔11231。
本实施例提供的超薄轻触按键开关，体积小，是一款可以运用到更小的使用空间中的轻触按键开关，配合上键帽即可使用。
本发明的工作原理为：如图2所示，轻触按键开关处于自然状态，此时，导通组件2的导电弹片22中部与静片21的中静触点212不接触，因此，轻触按键开关处于断开状态；配合上键帽后，只要向下按压键帽，上导芯5与X型平衡架4受到向下的作用力而下移，在上导芯5的下移过程中，对硅胶导芯3施加作用力，使硅胶导芯3受到挤压而变形，从而使硅胶导芯3带动导电弹片22中部变形下凹，使导电弹片22中部与静片21的中静触点212接触，则轻触按键开关处于导通状态；当释放对上导芯3与X型平衡架4向下的作用力时，在硅胶导芯3的弹性恢复力作用下，在硅胶导芯3上移恢复到自然状态的过程中，带动上导芯5上移，上导芯5在上移的过程中，通过上导引轴51带动X型平衡架4上移，恢复至自然状态，则轻触按键开关恢复至断开状态。
本发明的重点主要在于：
(1)通过采用整体呈四周封闭型结构的X型平衡架、上导芯与硅胶导芯及基座相配合作用，在按压力消失时，采用硅胶导芯来带动上导芯上移，再由上导芯带动X型平衡架上移的方式，充分利用轻触按键开关内部有限的空间，为轻触按键开关的上下按压过程提供平衡作用力，平衡功能明显增强，平衡效果更好，平稳性更强，整体稳定性提高，同时，使轻触按键开关内部结构实现各项力能；
(2)将传统单一上盖分成大卡块与小卡块，使硅胶导芯外侧边与大卡块之间、及硅胶导芯外侧边与小卡块之间分别形成让位槽，为X型平衡架的下嵌入部提供活动让位空间，利于提高轻触按键开关的按压平衡稳定性。
以上所述，仅是本发明的较佳实施例而已，并非对本发明的技术范围作任何限制，故采用与本发明上述实施例相同或近似的技术特征，而得到的其 他结构，均在本发明的保护范围之内。

Claims (10)

  1. 一种具有高平衡性的超薄轻触按键开关，包括基座，该基座上表面开设有一容置槽，该容置槽内设置有导通组件，其特征在于，还包括设置于容置槽上的硅胶导芯、设置于基座上且围设于硅胶导芯外围的X型平衡架、及设置于硅胶导芯上且位于X型平衡架内侧的上导芯，其中，所述X型平衡架主要由一平衡杆A与一平衡杆B交叉设置而成，该平衡杆A与平衡杆B均为封闭型框架结构，且该X型平衡架整体为四周封闭型结构；所述平衡杆A与平衡杆B交叉后形成两个交叉点，该两个交叉点将X型平衡架分成嵌入容置槽内的下嵌入部、及设置于基座上的上摆动部，且在该下嵌入部的端部设置有卡入容置槽内底部的定位卡块；在所述上导芯相对的两外侧边上设置有延伸至上摆动部下方的上导引轴；通过所述硅胶导芯、上导芯、X型平衡架与基座相配合作用，在上导芯的上下按压过程中，带动X型平衡架的上摆动部上下摆动，为上导芯的上下按压过程提供平衡作用力。
  2. 根据权利要求1所述的具有高平衡性的超薄轻触按键开关，其特征在于，所述硅胶导芯呈空心半球体状，且该硅胶导芯上端中心位置处向下凹设有一下凹点；所述下导芯下端面开设有供硅胶导芯上端卡入的下凹槽，且在该下凹槽上向下凸设有卡入下凹点中的下凸点。
  3. 根据权利要求1所述的具有高平衡性的超薄轻触按键开关，其特征在于，所述容置槽包括向下凹设的内卡槽、及环设于内卡槽外侧且供X型平衡架的下嵌入部嵌入的大环槽；所述容置槽内一端设置有一大卡块，另一端设置有一小卡块，使该大环槽分成位于内卡槽与小卡块之间的第一让位槽、位于内卡槽与大卡块之间的第二让位槽、及位于四个边角处的小卡槽；所述X型平衡架的下嵌入部嵌入于第一让位槽与第二让位槽中，且该下嵌入部端部的定位卡块卡入小卡槽中。
  4. 根据权利要求3所述的具有高平衡性的超薄轻触按键开关，其特征在于，在所述内卡槽内向上凸设有一嵌入平台，在该嵌入平台外围环设有一环形凸台，并在该环形凸台外围形成供硅胶导芯下端外缘嵌入的环形槽。
  5. 根据权利要求4所述的具有高平衡性的超薄轻触按键开关，其特征在于，所述导通组件包括嵌入于基座内的静片、及设置于嵌入平台上且位于静片上方的导电弹片，其中，该静片上具有两个外静触点、及位于两个外静触点之间的中静触点；该导电弹片上设置有一PI膜，且该导电弹片中部向上拱起，该导电弹片外缘位于两个外静触点上并与两个外静触点接触，该导电弹片中部位于中静触点上方。
  6. 根据权利要求3所述的具有高平衡性的超薄轻触按键开关，其特征在于，所述平衡杆A包括一第一U型架、及横置于第一U型架后端开口处且活动于第一让位槽中的第一横杆，在该第一U型架相对的内壁上分别设置有一插轴；所述平衡杆B包括一第二U型架、及横置于第二U型架后端开口处且活动于第二让位槽中的第二横杆，在该第二U型架相对的外壁上分别设置有一插孔；该第二U型架后端插入第一U型架内，且该第一U型架内壁上的插轴插入第二U型架外壁上的插孔中，形成所述交叉点。
  7. 根据权利要求6所述的具有高平衡性的超薄轻触按键开关，其特征在于，所述第一U型架包括第一横轴、及设置于第一横轴两端且向同一方向延伸设置的第一支臂，其中，该第一支臂主要由一第一上支臂部、第一下支臂部、及连接于第一上支臂部与第一下支臂部之间的一第一连接部组成，该第一横轴与第一上支臂部相结合形成位于平衡杆A上的所述上摆动部，该第一连接部与第一下支臂部相结合形成位于平衡杆A上的所述下嵌入部，该插轴设置于第一连接部内侧边上，该第一横杆设置于第一下支臂部上，该平衡杆A上的定位卡块位于第一下支臂部端部；所述第二U型架包括第二横轴、及设置于第二横轴两端且向同一方向延伸设置的第二支臂，其中，该第二支臂主要由一第二上支臂部、第二下支臂部、及连接于第二上支臂部与第二下支臂部之间的一第二连接部组成，该第二横轴与第二上支臂部相结合形成位于平衡杆B上的所述上摆动部，该第二连接部与第二下支臂部相结合形成位于平衡杆B上的所述下嵌入部，该插孔设置于第二连接部外侧边上，该第二横杆设置于第二下支臂部上，该平衡杆B上的定位卡块位于第二下支臂部端部。
  8. 根据权利要求7所述的具有高平衡性的超薄轻触按键开关，其特征在 于，所述第一上支臂部、第一下支臂部、第二上支臂部与第二下支臂部的宽度均相同，所述第一连接部的宽度与第二连接部的宽度之和等于第一上支臂部的宽度。
  9. 根据权利要求8所述的具有高平衡性的超薄轻触按键开关，其特征在于，所述第一上支臂部端部具有第一内倾斜面，所述第二连接部端部具有与第一内倾斜面相匹配的第二内倾斜面；所述第二上支臂部端部具有第一外倾斜面，所述第一连接部端部具有与第一外倾斜面相匹配的第二外倾斜面。
  10. 根据权利要求7所述的具有高平衡性的超薄轻触按键开关，其特征在于，所述第一连接部外侧壁上设置有限位轴，所述容置槽内壁上开设有供限位轴插入的限位孔，所述小卡槽内壁上开设供定位卡块端部卡入的卡孔。
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US6979792B1 (en) * 2004-08-31 2005-12-27 Lai Cheng Tsai Keystroke structure (1)
CN106449193A (zh) * 2016-08-04 2017-02-22 东莞市凯华电子有限公司 一种薄型键盘开关
CN106935422A (zh) * 2017-04-08 2017-07-07 东莞市凯华电子有限公司 一种具有高平衡性的超薄轻触按键开关
CN207217321U (zh) * 2017-04-08 2018-04-10 东莞市凯华电子有限公司 一种具有高平衡性的超薄轻触按键开关

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