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    • 3. 发明公开
    • Grounding of a switch
    • Erdung von einem Schalter
    • EP1376630A1
    • 2004-01-02
    • EP03018787.6
    • 1996-07-01
    • MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    • Yamamoto, TamotsuYokoji, ShigeruInoue, HirotoMatsui, HiroshiKaizaki, KeijiTamano, Koji
    • H01H19/08H01H9/12H01H11/00
    • H01H9/12H01H11/0056H01H25/008H01H2239/008
    • An operation type electronic component which is used for a remote controller of various electronic equipment and portable electronic equipment and is equipped with a push switch driven by the rotating and push operation of an operation knob. The component can be reduced in size by a simple construction and can be grounded by merely fitting. A dome-like movable contact (23E) is put on fixed contacts (23A,23B) disposed on a fitting substrate (22) to form a switch unit (23). An L-shaped actuator is interposed between this switch unit (23) and a driving body (21) so that the driving body (21) returns to the original state after the push operation of an operation knob (6) by the elastic operation force of the dome-like movable contact point (23E)of the switch unit (23). Further, a metal plate (25) equipped integrally with a live current portion (10) and a conductor of an earth portion (26) is fixed by insert-molding to the resin fitting substrate (22) and is electrically isolated so as to interpose a lightning conductor portion (26A) of the earth portion (26) between the live current portion (10) and the operation knob (6). According to this constitution, the number of constituent components can be reduced, the overall size can be reduced, too, and static electricity occurring in the operation knob (6) can be always conducted to the earth.
    • 一种用于各种电子设备和便携式电子设备的遥控器的操作型电子部件,并且配备有通过操作旋钮的旋转和推动操作驱动的按钮开关。 该部件可以通过简单的结构来减小尺寸,并且可以仅通过配合来接地。 将圆顶状活动触头(23E)放置在配置于嵌合基板(22)上的固定触头(23A,23B)上,形成开关单元(23)。 在该开关单元(23)和驱动体(21)之间插入L形致动器,使得通过弹性操作力在操作旋钮(6)的推动操作之后驱动体(21)返回到原始状态 的开关单元(23)的圆顶状活动触点(23E)。 此外,通过嵌入成型将与电流部分(10)和接地部分(26)的导体一体设置的金属板(25)固定到树脂嵌合基板(22)上并被电隔离以便插入 地面部分(26)的雷电导体部分(26A)在带电电流部分(10)和操作旋钮(6)之间。 根据该结构,能够减少构成部件的数量,也可以减小总体尺寸,并且能够始终向地面施加操作旋钮(6)中产生的静电。
    • 4. 发明公开
    • Push switch
    • 压力开关
    • EP1014405A2
    • 2000-06-28
    • EP99125555.5
    • 1999-12-21
    • Matsushita Electric Industrial Co., Ltd.
    • Yanai, YasunoriWatanabe, HisashiSato, JunMatsui, Hiroshi
    • H01H13/20
    • H01H13/20H01H2215/002H01H2215/006
    • A push switch of the present invention, which suits for small switches used for various apparatuses, comprises (a) a switch substrate (110) having outer fixed contact units (130) and a central fixed contact unit (120), both of which are fixed to the substrate (110) and have contact portions exposed from upper side of the substrate (110), also have connecting terminals (121, 131) extended therefrom, (b) a movable contact unit (140) which is formed with an elastic thin metal plate, and has an outer portion (141) placed on the outer fixed contact units (130), also has a tongue shaped portion (142) which faces toward the central fixed contact unit (120) forming a predetermined insulation gap between the portion (142) and the fixed contact unit (120), (c) an elastic unit (150) which is formed with an elastic material, and has a conical portion (151) having an opening at the lower side thereof, an upward protrusion (153) and a downward protrusion (156) which protrudes downward from the upper end of the opening, and, presses the outer portion (141) with the lower end portion (152) of the conical portion (151), (d) an operation unit (160) which is disposed on the upward protrusion (153) of the elastic unit (150) in such a manner as to be movable up and down and has a protrusion (163) at the lower end periphery thereof for preventing the slip off of the operation unit (160), (e) a cover (171) which is fixed to the periphery of the switch substrate (110), and holds the operation unit (160) with the surrounding wall (172) thereof in such a manner as to be movable up and down without the upward slip off of the operation unit (160), also has a hole (171), through which the operation unit (160) protrudes, at the upper central portion thereof, wherein, when an upper end portion (164) of the operation unit (160) is pressed, the portion (151) elastically deforms first, whereby the protrusion (156) presses the portion (142), whereby the portion (142) touches the fixed contact unit (120), next at least one of the protrusion (153) or the protrusion (156) deforms, whereby the protrusion (163) touches the substrate (110). The above structure realizes a push switch in which component parts are handled without difficulty, and the assembling productivity is superior, also the operation stroke is long.