WO2019056924A1 - 一种中间发光的按键开关 - Google Patents

一种中间发光的按键开关 Download PDF

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Publication number
WO2019056924A1
WO2019056924A1 PCT/CN2018/102482 CN2018102482W WO2019056924A1 WO 2019056924 A1 WO2019056924 A1 WO 2019056924A1 CN 2018102482 W CN2018102482 W CN 2018102482W WO 2019056924 A1 WO2019056924 A1 WO 2019056924A1
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WO
WIPO (PCT)
Prior art keywords
light
disposed
guiding core
guiding
emitting
Prior art date
Application number
PCT/CN2018/102482
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English (en)
French (fr)
Inventor
吴福喜
Original Assignee
东莞市凯华电子有限公司
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 东莞市凯华电子有限公司 filed Critical 东莞市凯华电子有限公司
Priority to KR2020207000018U priority Critical patent/KR200494466Y1/ko
Priority to EP18858186.2A priority patent/EP3709328B1/en
Priority to US16/649,128 priority patent/US11017964B2/en
Priority to JP2020600048U priority patent/JP3228178U/ja
Publication of WO2019056924A1 publication Critical patent/WO2019056924A1/zh

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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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/023—Light-emitting indicators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/12—Movable parts; Contacts mounted thereon
    • H01H13/14—Operating parts, e.g. push-button
    • 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
    • H01H13/50—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member
    • 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
    • H01H2215/00—Tactile feedback
    • H01H2215/03—Sound
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00—Legends
    • H01H2219/054—Optical elements
    • H01H2219/062—Light conductor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2233/00—Key modules
    • H01H2233/07—Cap or button on actuator part

Definitions

  • the invention relates to a key switch, in particular to an intermediate light-emitting key switch.
  • the illuminated button switch refers to a light-emitting structure disposed in the button switch to illuminate the button switch.
  • a light-emitting element for example, a light-emitting diode
  • the middle structure of the usual push button switch is provided to provide the guiding core with the guiding force for moving up and down. Therefore, in the conventional light-emitting button switch, the light-emitting element is usually embedded in the inner side of the button switch, so that the button switch generates light. effect.
  • the light has a blocking effect, the light does not spread well to the middle and the outside of the button switch, or the phenomenon that only the edge light is emitted, and the middle portion does not emit light, causing the button switch to emit light as a whole. not effectively.
  • an object of the present invention is to provide an intermediate light-emitting button switch, which realizes a central light-emitting effect of a key switch, and has a good light-emitting effect.
  • An intermediate light-emitting button switch includes a PCB board, a base disposed on the PCB board, and a cover covering the base, the cover and the base being combined to form a receiving cavity
  • a guiding core, a conducting component on the side of the guiding core, and a spring located below the guiding core are respectively disposed in the cavity, and an upper opening of the upper end of the guiding core is opened at the upper end of the guiding body, wherein a through hole is defined in the bottom of the base, and a guide post is protruded upwardly from the edge of the through hole.
  • the lower end of the spring is sleeved on the outer periphery of the guide post, and a light-emitting component with the upper end inserted into the base from the through hole is disposed on the PCB.
  • the light-emitting element is embedded in the pedestal from the bottom to the top from the middle, and the light is radiated upward from the middle through the guiding core to the outside, thereby realizing the middle-emitting effect of the button.
  • the light-emitting element is an LED lamp.
  • the lower end surface of the guiding core is provided with a light guiding groove for embedding the upper end of the spring.
  • a ring groove is formed on the base and around the guide post, and a conductive component slot is provided on the base and on the side of the ring groove for inserting the conductive component.
  • a first side opening is defined in the inner side wall of the conducting component slot.
  • a pressing block is disposed on one side of the guiding core, and a receiving slope is disposed at an upper end of the pressing block;
  • the conducting component includes a plug-in disposed in the socket of the conducting component and oppositely disposed a static piece and a moving reed, wherein a static contact is disposed on a side of the static piece, the movable spring is provided with a movable contact corresponding to the static contact, and a side of the movable spring is disposed on the side of the moving spring a protrusion extending toward the opening of the first side and corresponding to the pressing block; in the process of moving up and down the guiding core, the protrusion on the moving spring is pushed by the pressing block on the side of the guiding core to control the moving spring side The separation and contact between the movable contact on the side and the static contact on the side of the static plate, thereby achieving the disconnection and conduction function of the key switch.
  • a torsion spring is disposed on the base and on a side of the lead core; and a torsion spring slot is provided on the base and on the other side of the ring groove for the insertion of the torsion spring.
  • a second side opening is defined in the inner side wall of the torsion spring slot, the torsion spring extends to one side of the second side opening; and the other side of the guiding core is provided with a bullet that moves up and down in the second side opening Block; during the movement of the lead core up and down, the spring block on the side of the lead core constantly springs the torsion spring to make a sound.
  • a guide shaft is respectively disposed on opposite sides of the lead core, and a guide hole is formed in the base and on the side of the guide post for inserting the guide shaft up and down.
  • a guide block is disposed downwardly on opposite sides of the cover, and a movable slot for moving the guide shaft up and down is disposed on an inner side of the guide block.
  • the guiding core comprises a first guiding core body and a first cross pressing shaft disposed on the upper end surface of the first guiding core body.
  • the guiding core includes a second guiding core body and a second cross pressing shaft disposed on the second guiding core body, wherein the upper end of the second guiding core body defines a mounting groove.
  • the second cross pressing shaft is disposed in the mounting groove, and the upper end surface of the second cross pressing shaft is flush with the upper end surface of the mounting groove.
  • the guiding structure is formed by the guiding shaft on the side of the guiding core, the guiding hole in the base and the guiding block on the side of the cover, which provides a guiding function for the vertical movement of the guiding core, and ensures that the guiding core moves up and down in the vertical direction. Movement, high precision of structure activity, thereby improving the accuracy of the on/off of the button switch.
  • Figure 1 is an exploded view of the present invention
  • FIG. 2 is a schematic structural view of a susceptor according to the present invention.
  • FIG. 3 is a schematic structural view of a guide core and an LED lamp according to the present invention.
  • FIG. 4 is a schematic structural view of one of the guide cores of the present invention.
  • FIG. 5 is a schematic structural view of a susceptor and an LED lamp according to the present invention.
  • Figure 6 is a partial structural view of the present invention.
  • Figure 7 is a schematic structural view of another part of the present invention.
  • Figure 8 is a schematic structural view of a cover of the present invention.
  • Figure 9 is a schematic view showing another structure of the guide core of the present invention.
  • an embodiment of the present invention provides an intermediate light-emitting button switch, including a PCB board 1 , a base 2 disposed on the PCB board 1 , and a cover covering the base 2 . 3.
  • the cover 3 is combined with the base 2 to form a receiving cavity.
  • a guiding core 4, a conducting component 5 on the side of the guiding core 4, and a conducting component below the guiding core 4 are respectively disposed in the receiving cavity.
  • a spring 6 having an upper opening 31 for the upper end of the guiding core 4 to open up and down.
  • the bottom of the base 2 defines a through hole 21, and a guide post 22 is protruded upwardly from the edge of the through hole 21.
  • the lower end of the spring 6 is sleeved on the periphery of the guide post 22.
  • the PCB board 1 is provided with a light-emitting element 7 having an upper end inserted into the base 2 from the through hole 21.
  • the light-emitting element is an LED lamp.
  • a lower light guide groove 41 is formed in the lower end surface of the guide core 4 for inserting the upper end of the spring 6.
  • the light-emitting element 7 is inserted into the through hole 21 of the base 2 from the bottom and extends into the inner side of the spring 6.
  • the guide core 4 moves down the compression spring, the upper portion of the light-emitting element 7 can be embedded in the light guide groove 41 of the lower end surface of the core 4. In the middle, without the damage of the light-emitting element 7, a good illuminating effect is maintained.
  • a ring groove 23 is formed on the base 2 and around the guide post 22.
  • the slot 24 defines a first side opening 241 in the inner side wall of the through component slot 24.
  • a pressing block 42 is disposed on one side of the guiding core 4 , and a retaining slope 421 is disposed at an upper end of the pressing block 42 ;
  • the invention includes a static plate 51 and a movable spring 52 which are disposed opposite to the conductive component slot 24, wherein a static contact is disposed on a side of the static plate 51, and the movable spring 52 is disposed on the static spring 52.
  • a movable contact corresponding to the contact, and a protrusion 521 extending toward the first side opening 241 and corresponding to the pressing block 42 is disposed on a side of the moving spring 52.
  • the protrusion 521 on the moving spring 52 is pushed by the pressing block 42 on the side of the guiding core 4 to control the moving contact of the moving spring 52 and the side of the static piece 51.
  • the separation and contact of the contacts so as to achieve the disconnection and conduction function of the button switch.
  • a torsion spring 8 is disposed on the base 2 and on the side of the guide core 4; on the base 2 and on the other side of the ring groove 23 a torsion spring slot 25 is provided, and a second side opening 251 is defined in the inner side wall of the torsion spring slot 25, and the torsion spring 8 extends to one side of the second side opening 251;
  • the other side of the guide core 4 is provided with a spring block 43 that moves up and down in the second side opening 251.
  • a guide shaft 44 is disposed on opposite sides of the lead core 4, and is located in the base 2 and on the side of the guide post 22.
  • a guide hole 26 is provided for guiding the guide shaft 44 to be inserted up and down.
  • a guide block 32 is disposed downwardly on opposite sides of the cover 3, and an active slot for the upper and lower sides of the guide shaft 44 is opened on the inner side of the guide block 32. 321.
  • the guiding structure is formed by the guiding shaft 44 on the side of the guiding core 4, the guiding hole 26 in the base 2 and the guiding block 32 on the side of the cover 3, thereby guiding the up and down movement of the guiding core 4, and ensuring the guiding core 4 Move up and down in the vertical direction so that the button switch can be normally turned on and off by pressing.
  • the guiding core 4 has two structures, as shown in FIG. 4, which is the first structure of the guiding core 4.
  • the guiding core 4 includes a first guiding core body 45 and is disposed on the first guiding body. A first cross on the upper end surface of the core body 45 presses the shaft 46.
  • the guiding core 4 includes a second guiding core body 45' and a second cross pressing shaft 46 disposed on the second guiding core body 45'. ', wherein the upper end of the second core body 45' defines a mounting groove 451', the second cross pressing shaft 46' is disposed in the mounting groove 451', and the upper end surface of the second cross pressing shaft 46' and the mounting groove The upper end of the 451' is flush.
  • the pressing block 42 on the side of the guiding core 4 pushes the protrusion 521 on the moving spring 52 outward, so that the moving contact on the moving spring 52 and the side of the static piece 51 are The static contact is separated and the push button switch is in the off state.
  • the guide core 4 is pressed down, the guide core 4 is moved downward, and the spring 6 is compressed.
  • the pressing block 42 on the side of the guide core 4 is separated from the protrusion 521 on the side of the movable spring 52, so that the projection 521 is allowed to enter.
  • the moving spring 52 is reset, so that the moving contact on the moving spring 52 is in contact with the static contact on the side of the static piece 51, and the key switch is in a conducting state; when the guiding core 4 is released At the time of pressing, the guide core 4 is reset by the elastic restoring force of the spring 6, and the key switch is turned off. In this process, the LED lamp emits light, and the light is radiated upward from the central portion through the lead core 4 to generate a luminous effect. At the same time, the elastic block 43 on the side of the guiding core 4 springs the torsion spring 8 to emit a sound and enhance the touch.
  • the main focus of the invention is:
  • the guiding structure is formed by the guiding shaft on the side of the guiding core, the guiding hole in the base and the guiding block on the side of the cover, which provides a guiding function for the vertical movement of the guiding core, and ensures that the guiding core moves up and down in the vertical direction. Movement, high precision of structure activity, thereby improving the accuracy of the on/off of the button switch.

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  • Push-Button Switches (AREA)
  • Switch Cases, Indication, And Locking (AREA)

Abstract

本发明公开了一种中间发光的按键开关，包括一PCB板、一基座、及一盖子，在该基座与盖子之间设置有一导芯，在所述基座底部且位于导芯下方开设有一通孔，在该导芯下端面开设有一导光槽，在该PCB板上设置有上端从通孔插入基座内并嵌入导光槽中的一发光元件；由发光元件由下至上从中部嵌入基座内，光线由中部透过导芯向上发散至外部，实现按键中部发光效果。本发明可实现按键开关中部发光，发光效果良好。

Description

一种中间发光的按键开关 技术领域
本发明涉及一种按键开关，尤其涉及一种中间发光的按键开关。
背景技术
发光按键开关指于按键开关内设置发光结构以照亮按键开关。现有的发光按键开关，通常是直接在线路板上设置直接伸入开关内部的发光元件(例如发光二极管)，以达到发光效果。而通常的按键开关中部结构的设置是为了给导芯提供上下活动的导向作用力，因此，在常规的发光按键开关中，通常将发光元件嵌入于按键开关内部的侧边，使按键开关产生发光效果。然而，由于按键开关内部结构设计的缘故，对光线具有遮挡作用，光线并不能很好的扩散到按键开关中部及外部，或者出现只有边缘发光，而中部不发光的现象，导致按键开关整体上发光效果不佳。
发明内容
针对上述不足，本发明的目的在于提供一种中间发光的按键开关，实现按键开关中部发光效果，发光效果良好。
本发明为达到上述目的所采用的技术方案是：
一种中间发光的按键开关，包括一PCB板、设置于PCB板上的一基座、及盖合于基座上的一盖子，该盖子与基座相结合形成一容置腔，在该容置腔内分别设置有一导芯、位于导芯侧边的一导通组件、及位于导芯下方的一弹簧，该盖子上端开设有供导芯上端上下活动的一上开口，其特征在于，所述基座底部开设有一通孔，在该通孔边缘向上凸设有一导柱，该弹簧下端套设于导柱外围，在该PCB板上设置有上端从通孔插入基座内的一发光元件；由发光元件由下至上从中部嵌入基座内，光线由中部透过导芯向上发散至外部，实现按键中部发光效果。
作为本发明的进一步改进，所述发光元件为LED灯。
作为本发明的进一步改进，所述导芯下端面开设有供弹簧上端嵌入的一导光槽。
作为本发明的进一步改进，在所述基座上且位于导柱周围具有一环槽，在该基座上且位于环槽一侧具有供导通组件插入的一导通组件插槽，在该导通组件插槽内侧壁上开设有一第一侧开口。
作为本发明的进一步改进，在所述导芯一侧边设置有一压块，在该压块上端具有一让位斜面；所述导通组件包括插设于导通组件插槽内且相对设置的一静片与一动簧片，其中，该静片侧边上设置有一静触点，该动簧片上设置有与静触点相对应的一动触点，且在该动簧片侧边上设置有向第一侧开口方向延伸且与压块相对应的一凸起；在导芯上下活动的过程中，由导芯侧边上的压块推动动簧片上的凸起，以控制动簧片侧边上动触点与静片侧边上静触点的分离与接触，从而达到按键开关的断开与导通功能。
作为本发明的进一步改进，在所述基座上且位于导芯侧边设置有一扭簧；在所述基座上且位于环槽另一侧具有供扭簧插入的一扭簧插槽，在该扭簧插槽内侧壁上开设有一第二侧开口，该扭簧一端延伸至第二侧开口侧边；在所述导芯另一侧边设置有上下活动于第二侧开口中的一弹块；在导芯上下活动的过程中，导芯侧边上的弹块不断弹动扭簧，以发出声音。
作为本发明的进一步改进，在所述导芯相对的两侧边分别设置有一导轴，在所述基座内且位于导柱侧边开设有供导轴上下活动插入的一导孔。
作为本发明的进一步改进，在所述盖子相对的两侧边分别向下延伸设置有一导向块，在该导向块的内侧边开设有供导轴上下活动的一侧活动槽。
作为本发明的进一步改进，所述导芯包括一第一导芯本体、及设置于第一导芯本体上端面上的一第一十字按压轴。
作为本发明的进一步改进，所述导芯包括一第二导芯本体、及设置于第二导芯本体上的一第二十字按压轴，其中，该第二导芯本体上端开设有一安装槽，该第二十字按压轴设置于安装槽中，且该第二十字按压轴上端面与安装槽上端面齐平。
本发明的有益效果为：
(1)通过在按键开关中由下至上向中部嵌入发光元件，并将光线由中部透过导芯向上发散出，产生发光效果，实现按键开关中部发光的目的，发光效果良好；
(2)通过导芯侧边上的导轴、基座内的导孔与盖子侧边的导向块相结合形成导向结构，为导芯的上下移动提供导向作用，保证导芯沿竖直方向上下移动，结构活动精度高，从而提高按键开关导通与断开的准确度。
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为本发明基座的结构示意图；
图3为本发明导芯与LED灯结合的结构示意图；
图4为本发明导芯的其中一结构示意图；
图5为本发明基座与LED灯结合的结构示意图；
图6为本发明的一部分结构示意图；
图7为本发明的另一部分结构示意图；
图8为本发明盖子的结构示意图；
图9为本发明导芯的另一结构示意图。
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9，本发明实施例提供一种中间发光的按键开关，包括一PCB板1、设置于PCB板1上的一基座2、及盖合于基座2上的一盖子3，该盖子3与基座2相结合形成一容置腔，在该容置腔内分别设置有一导芯4、位于导芯4侧边的一导通组件5、及位于导芯4下方的一弹簧6，该盖子3上端开设有供导芯4上端上下活动的一上开口31，所述基座2底部开设有一通孔21，在该通孔21边缘向上凸设有一导柱22，该弹簧6下端套设于导柱22外围，在该PCB板1上设置有上端从通孔21插入基座2内的一发光元件 7，在本实施例中，该发光元件为LED灯。
如图3所示，所述导芯4下端面开设有供弹簧6上端嵌入的一导光槽41。发光元件7由底部插入基座2的通孔21中，并延伸至弹簧6的内侧中，在导芯4下移压缩弹簧时，发光元件7上部可嵌入导芯4下端面的导光槽41中，而不至于发光元件7受损，保持良好的发光效果。
如图2所示，在所述基座2上且位于导柱22周围具有一环槽23，在该基座1上且位于环槽23一侧具有供导通组件5插入的一导通组件插槽24，在该导通组件插槽24内侧壁上开设有一第一侧开口241。
如图1、图4、图5与图6所示，在所述导芯4一侧边设置有一压块42，且在该压块42上端具有一让位斜面421；所述导通组件5包括插设于导通组件插槽24内且相对设置的一静片51与一动簧片52，其中，该静片51侧边上设置有一静触点，该动簧片52上设置有与静触点相对应的一动触点，且在该动簧片52侧边上设置有向第一侧开口241方向延伸且与压块42相对应的一凸起521。在导芯4上下活动的过程中，由导芯4侧边上的压块42推动动簧片52上的凸起521，以控制动簧片52上动触点与静片51侧边上静触点的分离与接触，从而达到按键开关的断开与导通功能。
如图1、图2、图5与图7所示，在所述基座2上且位于导芯4侧边设置有一扭簧8；在所述基座2上且位于环槽23另一侧具有供扭簧8插入的一扭簧插槽25，在该扭簧插槽25内侧壁上开设有一第二侧开口251，该扭簧8一端延伸至第二侧开口251侧边；在所述导芯4另一侧边设置有上下活动于第二侧开口251中的一弹块43。在导芯4上下活动的过程中，导芯4侧边上的弹块43不断弹动扭簧8，从而发出声音，使按键开关具有发生效果，增强触感。
如图3、图4、图5、图6与图7所示，在所述导芯4相对的两侧边分别设置有一导轴44，在所述基座2内且位于导柱22侧边开设有供导轴44上下活动插入的一导孔26。同时，如图8所示，在所述盖子3相对的两侧边分别向下延伸设置有一导向块32，在该导向块32的内侧边开设有供导轴44上下活动的一侧活动槽321。通过导芯4侧边上的导轴44、基座2内的导孔26 与盖子3侧边的导向块32相结合形成导向结构，为导芯4的上下移动提供导向作用，保证导芯4沿竖直方向上下移动，从而使按键开关能通过按压正常导通与断开。
在本实施例中，导芯4具有两种结构，如图4所示，为导芯4的第一种结构，所述导芯4包括一第一导芯本体45、及设置于第一导芯本体45上端面上的一第一十字按压轴46。
如图9所示，为导芯4的第二种结构，所述导芯4包括一第二导芯本体45'、及设置于第二导芯本体45'上的一第二十字按压轴46'，其中，该第二导芯本体45'上端开设有一安装槽451'，该第二十字按压轴46'设置于安装槽451'中，且该第二十字按压轴46'上端面与安装槽451'上端面齐平。
处于自然未按压状态的按键开关，导芯4侧边上的压块42向外推动动簧片52上的凸起521，使动簧片52上的动触点与静片51侧边上的静触点分离，按键开关处于断开状态。工作时，向下按压导芯4，导芯4下移，弹簧6被压缩，同时，导芯4侧边的压块42脱离动簧片52侧边的凸起521，使凸起521进入让位斜面421上方空间内，则动簧片52复位，使动簧片52上的动触点与静片51侧边上的静触点接触，按键开关处于导通状态；当释放对导芯4的按压时，由弹簧6的弹性恢复力使导芯4复位，实现按键开关的断开。在此过程中，LED灯发光，光线由中部透过导芯4向上发散出，产生发光效果；同时，导芯4侧边上的弹块43弹动扭簧8，发出声音，增强触感。
本发明的重点主要在于：
(1)通过在按键开关中由下至上向中部嵌入发光元件，并将光线由中部透过导芯向上发散出，产生发光效果，实现按键开关中部发光的目的，发光效果良好；
(2)通过导芯侧边上的导轴、基座内的导孔与盖子侧边的导向块相结合形成导向结构，为导芯的上下移动提供导向作用，保证导芯沿竖直方向上下移动，结构活动精度高，从而提高按键开关导通与断开的准确度。
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. 一种中间发光的按键开关，包括一PCB板、一基座、及一盖子，在该基座与盖子之间设置有一导芯，其特征在于，在所述基座底部且位于导芯下方开设有一通孔，在该导芯下端面开设有一导光槽，在该PCB板上设置有上端从通孔插入基座内并嵌入导光槽中的一发光元件；由发光元件由下至上从中部嵌入基座内，光线由中部透过导芯向上发散至外部，实现按键中部发光效果。
  2. 根据权利要求1所述的中间发光的按键开关，其特征在于，所述盖子与基座相结合形成一容置腔，在该容置腔内分别设置有位于导芯侧边的一导通组件、及位于导芯下方的一弹簧，该盖子上端开设有供导芯上端上下活动的一上开口，在该通孔边缘向上凸设有一导柱，该弹簧上端嵌入导光槽中，下端套设于导柱外围。
  3. 根据权利要求1所述的中间发光的按键开关，其特征在于，所述发光元件为LED灯。
  4. 根据权利要求2所述的中间发光的按键开关，其特征在于，在所述基座上且位于导柱周围具有一环槽，在该基座上且位于环槽一侧具有供导通组件插入的一导通组件插槽，在该导通组件插槽内侧壁上开设有一第一侧开口。
  5. 根据权利要求2所述的中间发光的按键开关，其特征在于，在所述导芯一侧边设置有一压块，在该压块上端具有一让位斜面；所述导通组件包括插设于导通组件插槽内且相对设置的一静片与一动簧片，其中，该静片侧边上设置有一静触点，该动簧片上设置有与静触点相对应的一动触点，且在该动簧片侧边上设置有向第一侧开口方向延伸且与压块相对应的一凸起；在导芯上下活动的过程中，由导芯侧边上的压块推动动簧片上的凸起，以控制动簧片侧边上动触点与静片侧边上静触点的分离与接触，从而达到按键开关的断开与导通功能。
  6. 根据权利要求2所述的中间发光的按键开关，其特征在于，在所述基座上且位于导芯侧边设置有一扭簧；在所述基座上且位于环槽另一侧具有供 扭簧插入的一扭簧插槽，在该扭簧插槽内侧壁上开设有一第二侧开口，该扭簧一端延伸至第二侧开口侧边；在所述导芯另一侧边设置有上下活动于第二侧开口中的一弹块；在导芯上下活动的过程中，导芯侧边上的弹块不断弹动扭簧，以发出声音。
  7. 根据权利要求2所述的中间发光的按键开关，其特征在于，在所述导芯相对的两侧边分别设置有一导轴，在所述基座内且位于导柱侧边开设有供导轴上下活动插入的一导孔。
  8. 根据权利要求7所述的中间发光的按键开关，其特征在于，在所述盖子相对的两侧边分别向下延伸设置有一导向块，在该导向块的内侧边开设有供导轴上下活动的一侧活动槽。
  9. 根据权利要求1至8中任一所述的中间发光的按键开关，其特征在于，所述导芯包括一第一导芯本体、及设置于第一导芯本体上端面上的一第一十字按压轴。
  10. 根据权利要求1至8中任一所述的中间发光的按键开关，其特征在于，所述导芯包括一第二导芯本体、及设置于第二导芯本体上的一第二十字按压轴，其中，该第二导芯本体上端开设有一安装槽，该第二十字按压轴设置于安装槽中，且该第二十字按压轴上端面与安装槽上端面齐平。
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