An electric air conditioner power supply system

Abstract

The invention discloses an electric air-conditioning power supply system which comprises a generator, an original storage battery, a controller, a voltage sampling circuit and an additional power circuit connected in parallel with the original storage battery, wherein the positive pole of the original storage battery is connected with the power generation output end of the generator and the power supply input end of an air-conditioning system; the additional power circuit comprises an additional storage battery and a controllable switch which are connected with each other in series; the controller detects the voltage at two ends of the original storage battery by virtue of the voltage sampling circuit; and when the generator is in a shutdown state, if receiving an air-conditioning turn-on signal output by the air-conditioning system, the controller controls the controllable switch to switch on, and after detecting that the voltage is reduced to the lowest voltage for starting a vehicle, the controller outputs an air-conditioning turn-off control signal to the air-conditioning system. According to the electric air-conditioning power supply system disclosed by the invention, on one hand, when the voltage is detected to reduce to the lowest voltage for starting the vehicle, the air-conditioning system is controlled to stop operating, and electricity loss of the original storage battery can be avoided; on the other hand, the additional storage battery is added, so that the basic operating time of the air-conditioning system can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of vehicle air conditioners, in particular to an electric air conditioner power supply system. Background technique [0002] The traditional car air conditioner uses the engine to achieve cooling and heating, so its cooling and heating effect will be affected by the engine speed, especially when the vehicle is idling, in order to turn on the air conditioner cooling, the engine must be started, which will inevitably cause certain Fuel consumption, and if the occupant rests in the car at this time, it may even cause carbon monoxide poisoning, which is harmful to health. Although the electric air conditioner can get rid of the shackles of the engine, improve the cooling efficiency and cooling performance of the air conditioning system, and improve the power performance of the vehicle, but because the electric air conditioner needs to be powered by the battery, if the air conditioner is turned on when the vehicl...

AI Technical Summary

Problems solved by technology

[0002] The traditional car air conditioner uses the engine to achieve cooling and heating, so its cooling and heating effect will be affected by the engine speed, especially when the vehicle is idling, in order to turn on the air conditioner cooling, the engine must be started, which will inevitably cause certain Fuel consumption, and if the occupants rest in the car at this time, it may even cause carbon monoxide poisoning, endangering health

Although the electric air conditioner can get rid of the shackles of the engine, improve the cooling efficiency and cooling performance of the air conditioning system, and improve the power performance of the vehicle, but because the electric air conditioner needs to be powered by the battery, if the air conditioner is turned on when the vehicle is idling, it is likely to cause the battery to be damaged. Power loss, which in turn affects the start of the vehicle and the use of other electrical appliances

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