Rechargeable torch light
A rechargeable torch light PL01/3 is a handheld flashlight that can be recharged for repeated use and emits a high-...
1. Improvement of Solar Home Lighting System generation efficiency
(1) Material and structural innovation
Monocrystalline silicon and PERC technology: The photoelectric conversion efficiency of monocrystalline silicon photovoltaic panels has reached more than 24%, combined with passivated emitter and back contact (PERC) technology to reduce light energy loss.
Heterojunction (HJT) and perovskite stacking: The efficiency of HJT cells has exceeded 25%. The perovskite material can absorb a wider spectrum through stacking design, and the laboratory efficiency exceeds 33%.
Bifacial power generation technology: Bifacial photovoltaic panels use back-reflected light to increase the overall power generation by 10%-30%.
(2) Optimization of light energy capture
Concentrated photovoltaics (CPV): Focusing sunlight through lenses or reflectors to improve power generation efficiency per unit area, suitable for high-irradiation areas.
Intelligent light tracking system: Adjust the angle of the photovoltaic panel through sensors and motors to maximize the light reception time.
2. Upgrade of energy storage system
(1) High-performance battery technology
Lithium-ion battery replaces lead-acid battery: Lithium iron phosphate battery (LFP) has a cycle life of more than 2,000 times, an energy density increase of 50%, and supports fast charging and discharging.
Hybrid energy storage system: Lithium battery + supercapacitor combination to cope with instantaneous high power demand (such as LED startup) and reduce battery loss.
(2) Intelligent energy management
Dynamic charge and discharge control: Based on weather forecast and load demand, optimize the charge and discharge strategy to avoid excessive charge and discharge.
Low self-discharge design: Battery management system (BMS) reduces static power consumption and extends energy storage time.
3. Optimization of LED lighting efficiency
(1) High-efficiency LED chip
Gallium nitride (GaN) technology: LED luminous efficiency exceeds 200 lm/W (traditional incandescent lamps are only 15 lm/W), and the life span reaches more than 50,000 hours.
COB integrated packaging: Multi-chip integration reduces thermal resistance and improves light efficiency by 10%-20%.
(2) Intelligent drive and dimming
High-efficiency constant current drive circuit: conversion efficiency exceeds 95%, reducing power loss.
Adaptive dimming technology: dynamically adjust brightness according to ambient light intensity and traffic flow (such as 0-100% stepless dimming), saving energy by 30%-70%.
4. System-level intelligent control
(1) Internet of Things and AI optimization
Remote monitoring and predictive maintenance: real-time monitoring of system status through sensors, early warning of faults, and reducing downtime losses.
AI energy efficiency algorithm: analyze historical data to optimize photovoltaic-energy storage-load matching and reduce overall energy consumption.
(2) Scenario-based energy-saving strategy
Light control + time control + human body sensing: only turn on the lights when needed to avoid ineffective lighting.
Time-sharing power supply mode: automatically switch to low power mode under low light conditions.
5. System integration and process improvement
Integrated design: photovoltaic panels, batteries, and LED lights are integrated and packaged to reduce line losses (such as integrated design of solar street lights).
Low-power standby technology: the standby power consumption of the controller is reduced to milliwatts, extending the battery life on rainy days.
Heat dissipation optimization: Graphene heat dissipation materials or heat pipe technology to improve LED and battery life.
