JPH0264840U

JPH0264840U -

Info

Publication number: JPH0264840U
Application number: JP14454088U
Authority: JP
Priority date: 1988-11-05
Filing date: 1988-11-05
Publication date: 1990-05-16

Description

[Brief explanation of drawings]

第１図は、本考案レンジフードフアンの１実施
例を示す縦断側面図、第２図は、同上、レンジフ
ードフアン本体に設置した切換ダクトの斜視図、
第３図は、同上、他の実施例を示す一部切欠縦断
面図、第４図は、第１従来例の排気型レンジフー
ドフアンを示す縦断側面図、第５図は、第２従来
例の同時吸排気型レンジフードフアンを示す側面
図、第６図は、第３従来例の熱交換型レンジフー
ドフアンを示す側面図である。５……シロツコフアン、６……排気路、１０…
…ダンパー、１５……ガスセンサー又は赤外線セ
ンサー、１６……レンジフード本体、２０……吸
気室、２２……送気室、２３……通気路。 FIG. 1 is a longitudinal side view showing one embodiment of the range hood fan of the present invention, and FIG. 2 is a perspective view of the switching duct installed in the range hood fan body.
FIG. 3 is a partially cutaway vertical sectional view showing another embodiment of the same as above, FIG. 4 is a vertical sectional side view showing an exhaust type range hood fan of the first conventional example, and FIG. 5 is a second conventional example. Fig. 6 is a side view showing a third conventional heat exchange type range hood fan. 5...Shirotskov fan, 6...Exhaust path, 10...
...damper, 15...gas sensor or infrared sensor, 16...range hood body, 20...intake chamber, 22...air supply chamber, 23...ventilation path.

Claims

[Scope of utility model registration request]

The suction side of the fan installed in the range hood body is connected to the indoor air collection port, and the blowing side of the fan is connected to the ventilation path leading to the indoor air outlet and the exhaust path leading to the outdoor exhaust port. The exhaust passage and the ventilation passage are connected to each other by a damper, and the controller uses a detection signal from a gas sensor or an infrared sensor installed at a position within the range hood body where waste gas or combustion infrared rays are most likely to be detected. 1. A range hood fan characterized in that the damper is switched by operating the damper to automatically perform exhaust or circulation.