Intelligent storage and control system for low-temperature application of lithium batteries of solar streetlamp

Abstract

The invention discloses an intelligent storage and control system for low-temperature application of lithium batteries of a solar streetlamp and relates to the technical field of new energy application. A lithium battery pack, a lithium battery pack heater, a lithium battery protecting plate and a solar controller are all arranged inside an intelligent battery system shell; the lithium battery pack is coated with the lithium battery pack heater, and heat preservation layers are arranged outside the lithium battery pack and the lithium battery pack heater; a positive pole of the lithium batterypack is connected with the BAT+ end of the solar controller through a fuse, the lithium battery protecting plate is connected with the BAT- end of the solar controller through a controller switch, and the solar controller is connected to a positive pole and a negative pole of a charging part of a solar cell panel; and one end of the lithium battery pack heater is in series connection with a heating control switch of the solar controller through a normally-closed temperature switch, and the heating control switch is connected with a heating part of the solar cell panel. According to the intelligent storage and control system for low-temperature application of the lithium batteries of the solar streetlamp, under the situation that the cost is increased by about 30%, not only can the requirements of the lithium batteries for the working environment can be met, but also the requirement for the illuminating time of the streetlamp can be met.

Description

technical field [0001] The invention relates to the technical field of new energy applications, in particular to solar street lamp technology, and in particular to an intelligent storage and control system for lithium battery low-temperature application of solar street lamps. Background technique [0002] In the past few years, LED solar street lights have developed rapidly in our country. Due to its advantages of energy saving, convenient installation, long life (up to more than 2 times that of lead-acid batteries), no need for municipal power supply cables, and intelligent control, it quickly occupies a place in the use of street lamps. In particular, most of the street lights installed on new roads and remote roads that are not convenient for municipal power supply choose solar street lights. Solar street lights use sunlight to irradiate solar panels to generate electricity during the day, store electrical energy in batteries, and automatically light up street lights by ...

AI Technical Summary

Problems solved by technology

The electric heater of the battery pack needs a lot of energy to keep the temperature of the battery pack not lower than 0 degrees Celsius. According to actual measurements, the heater consumes more energy than the LED lamp, which requires larger solar panels and backup batteries. The energy-saving advantage of street lighting is gone, and it will affect the turn-on time of solar street lights, and it is difficult to meet the needs of 5-7 days of cloudy and rainy days.

This makes the application of lithium-ion solar street lights in low temperature areas complicated and difficult

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