Ventilator with digital power amplifying acoustic device

The utility model provides a smoke extractor with a digital power amplifier acoustic device, comprising a control box, a main control panel, a power input lead and a casing main body. The smoke extractor is mainly and technically characterized by also comprising the acoustic device, a power amplifie...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	YE YUANZHANG, HU BINGYAO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING DEAF-AID SETS DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY HEATING LIGHTING LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS MECHANICAL ENGINEERING OTHER DOMESTIC STOVES OR RANGES PUBLIC ADDRESS SYSTEMS RANGES VENTILATING WEAPONS
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Beschreibung
Zusammenfassung:	The utility model provides a smoke extractor with a digital power amplifier acoustic device, comprising a control box, a main control panel, a power input lead and a casing main body. The smoke extractor is mainly and technically characterized by also comprising the acoustic device, a power amplifier board and an audio jack, wherein, the power amplifier board is arranged inside the top of the casing main body, the acoustic device is arranged inside the control box, the power amplifier board is in signal connection with the control box and the main control panel, the acoustic device is in signal connection with the power amplifier board, the audio jack is positioned on the control box and is in signal connection with the power amplifier board, and the power amplifier board and the main control panel are in electric connection with power supply input wires. The smoke extractor with the digital power amplifier acoustic device has the characteristics that the digital power amplifier acoustic device can be combine