Panasonic Corporation

Panasonic Intellectual Property Management Co., Ltd.

Takashi Tonokakiuchi

Makoto Ishikawa

Hirosato Sakai

Masamichi Kachi

Nobuyuki Yasui

Yoshio Ikari

Hideyuki Fujisawa

Kunio Kiyomoto

Masanori Yamanaka

An extractor hood changes an air volume of a fan in response to a temperature of a cooking subject on a cooker. The hood includes an infrared sensor that detects an average temperature between the cooking subject temperature and an ambient temperature of the cooking subject, a temperature sensor that detects an ambient temperature of the cooker, a signal receiver, and an air-volume controller. The air volume controller calculates the cooking subject temperature based on the average temperature by using the ambient temperature of the cooker as the ambient temperature of the cooking subject, and then determines the air volume of a fan based on the cooking subject temperature and a cooker signal.

Extractor hood

A shutter device reduces resistance in an air passage while maintaining air-tightness, thus reducing a load to a fan and a motor. A shutter mount is provided between an intake port adapted to be connected with a side from which air enters and a discharging port adapted to be connected with a side from which air is discharged. A shutter frame is inserted into an inside of the shutter mount. A shutter for preventing outside air from entering from the discharging port is mounted to the shutter frame. The shutter mount has a rib thereof for sealing a gap produced between the shutter and the shutter mount when the shutter is closed. The rib has an inner diameter substantially equal to a diameter of the discharging port as seen from the discharging port.

Shutter device and ventilation device

Growing community of inventors

Aichi, Japan

Takashi Tonokakiuchi