JPS5881424U

JPS5881424U - ventilation system

Info

Publication number: JPS5881424U
Application number: JP17659781U
Authority: JP
Inventors: 原　安宣; 隆男上野
Original assignee: 株式会社長谷川工務店
Priority date: 1981-11-26
Filing date: 1981-11-26
Publication date: 1983-06-02

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来の換気装置の回路図、第２図は本考案によ
る換気装置の回路図、第３図及び第４図は夫々変形例の
回路図である。１・・・換気扇、２・・・駆動用モータ、５・・・高速
回転制御部、４・・・駆動停止スイッチ、５・・・手動
操作スイッチ機構、６・・・高速操作スイッチ、７・・
・低速回転制御部、・・・低速操作スイッチ、９・・・
常閉スイッチ、１０・・・常開スイッチ、１１・・・雰
囲気悪化状態検出機構。FIG. 1 is a circuit diagram of a conventional ventilation system, FIG. 2 is a circuit diagram of a ventilation system according to the present invention, and FIGS. 3 and 4 are circuit diagrams of modified examples. DESCRIPTION OF SYMBOLS 1... Ventilation fan, 2... Drive motor, 5... High speed rotation control unit, 4... Drive stop switch, 5... Manual operation switch mechanism, 6... High speed operation switch, 7...・
・Low speed rotation control section,...Low speed operation switch, 9...
Normally closed switch, 10... Normally open switch, 11... Atmosphere deterioration state detection mechanism.

Claims

[Scope of utility model registration request]

A high-speed operation switch of a manual operation switch mechanism having a drive stop operation switch is connected to a high-speed rotation control section for a drive motor of a ventilation fan, and a low-speed operation switch is connected to a low-speed rotation control section, and the high-speed operation switch and A normally closed switch is connected in series to the low speed operation switch, a circuit with a normally open switch is connected in parallel to the normally closed switch and the high speed operation switch, and a mechanism is provided to detect a deterioration of the atmosphere. . A ventilation system, characterized in that the ventilation device is configured to automatically and reversibly open the normally closed switch and close the normally open switch based on information from the atmosphere deterioration state detection mechanism.