Fire extinguisher installation display device
The LED lighting device with perovskite solar cell charging and adaptive brightness control addresses the challenge of locating fire extinguishers in dark places, ensuring prolonged visibility by optimizing battery use.
JP2025162487APending Publication Date: 2025-10-27坂田 雄司
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Patent Information
- Application Number
- JP2024074981
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-04-15
- Publication Date
- 2025-10-27
AI Technical Summary
Technical Problem
Conventional fire extinguishers are difficult to locate in dark places due to the absence of lighting, making them inaccessible during emergencies.
Method used
A lighting device using LED light guide plates powered by dry batteries and storage batteries, with perovskite solar cells to charge the batteries and adjust brightness based on environmental light conditions, ensuring prolonged illumination.
Benefits of technology
The system enables easy location of fire extinguishers in dark environments by reducing battery consumption through adaptive brightness control, extending the lighting duration to 3-5 years without commercial power.
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Smart Images
Figure 2025162487000001_ABST
Abstract
To provide a lighting device for indicating the installation of a fire extinguisher, which can be used even in a place where there is no commercial power supply and where a power source cannot be taken out.SOLUTION: The present invention uses a battery and a storage battery, and allows a perovskite solar cell to be powered by a rechargeable storage battery and a dry battery even in a relatively dark environment, making it possible to check installation even in a place where there is no commercial power supply in an installation place. When the installation place is bright, the output voltage of the perovskite solar cell increases, causing a light guide plate to dim or turn off. Therefore, it is possible to reduce consumption of a dry battery and a storage battery, allowing a battery power supply to be used for a long period of time.SELECTED DRAWING: Figure 2
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