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专利号:ZL200620075406.7专利权人:上海梅山钢铁股份有限公司发明(设计)人:王阿杨本实用新型涉及一种在屏蔽条件下的信号传递系统,特别涉及一种用于矿山通讯的信号系统。主要解决安全交流电压作为电源由于长距离的传送,造成电压降的技术问题。技术方案为:一种用于矿山通讯的信号系统,包括两个长距离间隔设置的信号电路,两个信号电路之间通过导线连接,信号电路由安全隔离变压器、双向晶闸管、限流电阻、按钮、信号灯、电铃所组成,信号灯与电铃并联后与双向晶闸管串连,然后该回路并接在安全隔离变压器两端,双向晶闸管引出端串接限流电阻和按钮,
Patent No. ZL200620075406.7 Patentee: Shanghai Meishan Iron & Steel Co., Ltd. Inventor: Wang A Yang The utility model relates to a signal transmission system under shielding conditions, in particular to a signal for mine communications system. Mainly to solve the safety of AC voltage as a power transmission due to long distances, resulting in voltage drop of technical problems. The technical scheme is as follows: a signal system used for mine communication comprises two signal circuits arranged at long intervals, the two signal circuits are connected by wires, the signal circuit consists of a safety isolating transformer, a triac, a current limiting resistor, a button , A signal lamp and an electric bell. The signal lamp and the electric bell are connected in series with the bidirectional thyristor in parallel, and then the circuit is connected with two ends of a safety isolating transformer. The bidirectional thyristor lead-out end is connected with a current limiting resistance and a button in series,