Locomotive air conditioning apparatus automatic shut down and reset electronic protector

Abstract

The invention discloses a locomotive air conditioning apparatus automatic shut down reset electronic protector, and relates to apparatuses enables an air conditioning to perform automatic reset along with increase of voltage following shut down of the air conditioning due to reduction of an auxiliary generating voltage, aiming at eliminating the need for manual reset after the air conditioning stops. According to the invention, the input ends of a sampling circuit having a 88V fixed value and of a sampling circuit having a 100V fixed value are in separate connection to a battery voltage through a power box socket of an air conditioning. An output end of the sampling circuit having a 88V fixed value is connected to a negative phase input end of a voltage comparator LM1. A positive phase input end of the voltage comparator LM1 is connected to an auxiliary generating voltage detection sampling circuit. An output end of the sampling circuit having a 100V fixed value is connected to a positive phase input end of another voltage comparator LM2, and a negative phase input end of the another voltage comparator LM2 is connected to the auxiliary generating voltage detection sampling circuit. The output ends of the two voltage comparators LM1 and LM2 are connected to a positive interlock circuit and a negative interlock circuit which are composed of relays J1 and J2 and a time relay SJ. According to the invention, locomotive air conditioning apparatus automatic shut down reset electronic protector obviates the need for manual reset of air conditioning.

Description

technical field [0001] The invention relates to a self-stop and restart electronic protector for a locomotive air conditioner, in particular to shutting down when the auxiliary power generation voltage of the locomotive air conditioner drops below 88V, and automatically restarting the air conditioner when the auxiliary power generation voltage rises to 100V. The activated locomotive air conditioner automatically stops and restarts the electronic protector. Background technique [0002] On diesel locomotives, when the auxiliary power generation voltage drops below 88V due to air compressor blowing or other reasons, the main engine of the air conditioner will automatically stop. It is difficult to pass when checking and accepting the performance of the locomotive. The constant blowing of the wind and the constant restart of the air conditioner brought a lot of trouble to the drivers and passengers. Contents of the invention [0003] The purpose of the present invention is ...

AI Technical Summary

Problems solved by technology

[0002] On diesel locomotives, when the auxiliary power generation voltage drops below 88V due to air compressor blowing or other reasons, the main engine of the air conditioner will automatically stop. Difficult to pass when inspecting locomotive performance

The constant blowing of the wind and restarting the air conditioner has brought a lot of trouble to the drivers and passengers

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