Rack for public address system, has battery, integrated in module, connected to charger recharging battery, power converter supplying amplifier with sinusoidal electric signal, and orifices to introduce rods fixing battery and converter

摘要

The rack has a rechargeable battery (1), integrated in a module, connected to a charger (2) recharging the battery, and a power converter (3) supplying an amplifier with a sinusoidal electric signal. The battery and converter are cooled by forced ventilation from a cold source, and are carried by a supporting bar (15) with rollers (9). Orifices (11) allow introducing threaded rods fixing the battery and the converter to the rack.