A rear lamp control device of a semitrailer comprises an air pocket, a hand-operated direction valve, an air cylinder, magnetic steel, a proximity switch, a first resistor, a second resistor, a triode, a relay, a rear lamp and a power supply. An air inlet P of the hand-operated direction valve is communicated with the air pocket, and an execution port A of the hand-operated direction valve is communicated with a rodless cavity of the air cylinder; the magnetic steel is fixedly connected to a piston rod of the air cylinder and corresponds to the proximity switch. The proximity switch, the firstresistor and the base electrode of the triode are electrically connected in sequence; one end of the second resistor is electrically connected between the first resistor and a base of the triode, andthe other end of the second resistor is grounded; a collector of the triode is electrically connected with one end of a coil of the relay; an emitter of the triode is electrically connected with a cathode of the power supply; the other end of the coil of the relay is electrically connected with an anode of the power supply; a switch of the relay, the rear lamp and the power supply are electrically connected in sequence to form a loop. According to the invention, a tractor can be separated from an original trailer and is very convenient to connect with a new trailer.
一种半挂车的后车灯控制装置,包括气包、手动换向阀、气缸、磁钢、接近开关、第一电阻、第二电阻、三极管、继电器、后车灯和电源;手动换向阀的进气口P与气包连通,手动换向阀的执行口A与气缸的无杆腔连通;磁钢固定连接在气缸的活塞杆上,且磁钢与接近开关相对应;接近开关、第一电阻和三极管的基极依次电连接;第二电阻的一端电连接在第一电阻和三极管的基极之间,第二电阻的另一端接地;三极管的集电极与继电器的线圈的一端电连接,三极管的发射极与电源的负极电连接;继电器的线圈的另一端与电源的正极电连接;继电器的开关、后车灯和电源依次电连接并形成回路。本发明可使牵引车脱离原来的挂车而连接新的挂车时非常方便。
Rear lamp control device of semitrailer
半挂车的后车灯控制装置
2020-11-03
Patent
Elektronische Ressource
Chinesisch
IPC: | H05B ELECTRIC HEATING , Elektrische Heizung / B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein |