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    • 16. 发明专利
    • Explosion-proof box
    • 防爆箱
    • JPS5944011A
    • 1984-03-12
    • JP15459082
    • 1982-09-07
    • Tokyo Tatsuno Co Ltd
    • TANAKA AKIRA
    • G02B6/24G02B6/35H02G3/08
    • G02B6/353G02B6/3552G02B6/3574G02B6/3582
    • PURPOSE:To eliminate the generation of a spark completely and to facilitate the replacement of an optical fiber line by providing a photoelectric transducing part internally and an optical fiber connector coupled with the photoelectric transducing part through the optical fiber externally. CONSTITUTION:One-side end parts of optical fibers 52 and 53 are coupled with a light emitting body and a photodetecting body, and the other-side terminals are led out of a box 40 and connected to an optical fiber 54. An optical fiber line 56 connecting a connector 55 and an optical switch 70 together consists of optical fibers 57 and 58 and a shield body 59. The optical switch 70 and line 56 are coupled together by an optical connector 60. When the button 70 of the optical switch 70 is pressed, light is cut off and a signal indicating that the button is operated is sent to a line 81 to control a controller 80. If the line 56 is broken, the optical connecors 54 and 55 are only disengaged and if the optical switch 70 is broken, the optical switch 70 is only disengaged from the optical connector 60 for replacement, so the replacement is extremely easy.
    • 目的:为了完全消除火花的产生,通过在内部设置光电转换部件和通过外部的光纤与光电转换部耦合的光纤连接器,便于更换光纤线路。 构成:将光纤52,53的一端部与发光体和受光体连接,将另一方的端子从箱体40引出并与光纤54连接。光纤线路 连接器55和光开关70一起由光纤57和58以及屏蔽体59组成。光开关70和线56通过光连接器60耦合在一起。当光开关70的按钮70为 按下,光被切断,并且指示按钮被操作的信号被发送到线路81以控制控制器80.如果线路56断开,则光学连接器54和55仅被解除,并且如果光学开关70是 光开关70仅与用于更换的光连接器60脱离,所以更换非常容易。