Solar air-conditioning system with control and automatic discharging functions

Abstract

The invention discloses a solar air-conditioning system with control and automatic discharging functions. The solar air-conditioning system comprises a solar cell, a solar controller, a storage battery and a variable frequency air conditioner, wherein the solar controller comprises a charging circuit, a control circuit, a lightning protection circuit and a discharging circuit; the variable frequency air conditioner comprises an inversion circuit and a compressor; the control circuit comprises thirty-first to thirty-third diodes, a thirty-fourth voltage-stabilizing tube, a thirty-seventh voltage-stabilizing tube, a thirty-second resistor, a thirty-first MOS transistor and an integrated voltage-stabilizing chip; and the discharging circuit comprises forty-first to forty-second triodes, a forty-first resistor, a forty-third resistor, a forty-fifth resistor, a forty-sixth resistor, a forty-first capacitor and a forty-second capacitor. The solar air-conditioning system has the effective lightning protection function, and the safety performance of the system can be improved; and meanwhile, the solar air-conditioning system has relatively high self-starting capability, and capabilities of avoiding an endless-loop state, lowering cost, reducing loss, and reducing the discharging time.

Description

technical field [0001] The invention relates to the field of solar air conditioning, in particular to a solar air conditioning system with control and self-discharging functions. Background technique [0002] The solar air conditioning system is composed of solar cells, controllers, storage batteries and inverter air conditioners. The existing solar air-conditioning system has the following defects: the lightning protection measures of the controller are not effective, which affects the safety performance of the system; the capacity and self-discharge of multiple single batteries of the battery are inevitably inconsistent, which affects the life of the battery. [0003] At the same time, the traditional solar control circuit adopts the method of battery single power supply and low voltage disconnection. In this way, there will be an infinite loop: if the power supply voltage of the battery is lower than the set voltage of the disconnect function, the solar control circuit w...

AI Technical Summary

Problems solved by technology

The existing solar air-conditioning system has the following defects: the lightning protection measures of the controller are not effective, which affects the safety performance of the system; the capacity and self-discharge of multiple single batteries of the battery are inevitably inconsistent, which affects the life of the battery

However, in the first type of capacitive self-discharge circuit, if the resistance is too large, the discharge time will be longer, and if the resistance is too small, the loss will be too large; the second type of capacitive self-discharge circuit needs components such as a discharge relay and a discharge relay control circuit. High cost and short service life

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