LIGHTING DEVICE, DISASTER PREVENTION LIGHTING EQUIPMENT, AND DISASTER PREVENTION LIGHTING SYSTEM

• Main Authors: YAMASHITA KOJI, SHIGEMATSU DAIKI, YAGI SANA, HONDA YOSHIAKI, UKEDA TAKAAKI, KONISHI YOJI
• Format: Patent
• Language: English; Japanese
• Published: 12.02.2021
• Subjects: BLASTING; ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF; HEATING; LIGHTING; MECHANICAL ENGINEERING; NON-PORTABLE LIGHTING DEVICES; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS; WEAPONS

To provide a lighting device, disaster prevention lighting equipment, and a disaster prevention lighting system capable of inspecting a battery without using a discharge circuit.SOLUTION: A lighting device 4 includes a lighting circuit 41, a charging circuit 40, a voltage detection circuit 421, and an abnormality detection circuit 422. The abnormality detection circuit 422 performs a charge amount fluctuation process that fluctuates a charging current to a battery 3, and performs an abnormality detection process on the basis of the fluctuation state of a battery voltage Vb due to the charge amount fluctuation process.SELECTED DRAWING: Figure 1 【課題】 放電回路を用いずに電池の点検を行うことができる点灯装置、防災照明器具、及び防災照明システムを提供する。【解決手段】 点灯装置４は、点灯回路４１と、充電回路４０と、電圧検出回路４２１と、異常検出回路４２２と、を備える。異常検出回路４２２は、電池３への充電電流を変動させる充電量変動処理を行い、充電量変動処理による電池電圧Ｖｂの変動状態に基づいて、異常検出処理を行う。【選択図】図１