The invention discloses an energy-saving power supply device for traffic signal lamps. The power supply device comprises a mains supply AC connected with the traffic signal lamps EL, wherein a change-over switch JQ is arranged between and connected with the traffic signal lamps EL and the mains supply AC; the change-over switch JQ is provided with two input lines, one input line is connected witha phase line L1 of the mains supply AC, and the other input line is connected with a solar cell SP; and a direct-current controller U and an inverter UI are arranged between and connected with the solar cell SP and the change-over switch JQ. According to the device, reasonable echelon utilization of energy is achieved;d when sunlight is sufficient, the solar cell is preferentially utilized to directly supply power to the traffic signal lamps and charge a storage battery; in rainy days or at night, the storage battery supplies power to the traffic signal lamps; when both the solar cell and thestorage battery cannot supply power, the mains supply supplies power to the traffic signal lamps; and the solar cell or the storage battery supplies power to the whole system in most of time, and therisk that the mains supply is easy to power off during working is reduced.
本发明公开了一种节能型交通信号灯供电电源装置,包括与交通信号灯EL相连接的市电AC,在交通信号灯EL和市电AC之间连接有转换开关JQ,所述转换开关JQ具有两个输入线路,其中一个输入线路与市电AC的相线L1相连接,另一个输入线路连接有太阳能电池SP,在太阳能电池SP的和转换开关JQ之间还连接连接有直流控制器U和逆变器UI;本装置实现了能量的合理梯次利用,阳光充足时,优先利用太阳能电池直接给交通信号灯供电,同时给蓄电充电;当阴雨天或夜晚时,由蓄电池向交通信号灯提供电源;当太阳能电池与蓄电池均无法供电时,由市电向交通信号灯供电,整个系统在多数时间内由太阳能电池或蓄电池供电,降低了采用市电工作容易断电的风险。
Energy-saving power supply device for traffic signal lamps
一种节能型交通信号灯供电电源装置
2021-02-26
Patent
Elektronische Ressource
Chinesisch
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