VENTILATING FAN CONTROLLER

PURPOSE:To facilitate opening of the door of a control board by detecting turning of a door handle in the opening direction and stopping a ventilating fan. CONSTITUTION:A switch 10 interlocked with a handle 9 to detect opening operation thereof is arranged in a door 2 while furthermore a switch 11 f...

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Bibliographische Detailangaben
1. Verfasser:	SAITO YOSHIJI
Format:	Patent
Sprache:	eng
Schlagworte:	BOARDS, SUBSTATIONS, OR SWITCHING ARRANGEMENTS FOR THE SUPPLYOR DISTRIBUTION OF ELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION
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Beschreibung
Zusammenfassung:	PURPOSE:To facilitate opening of the door of a control board by detecting turning of a door handle in the opening direction and stopping a ventilating fan. CONSTITUTION:A switch 10 interlocked with a handle 9 to detect opening operation thereof is arranged in a door 2 while furthermore a switch 11 for detecting open state of the door 2 is provided. When the handle 9 is operated in the opening direction with the door 2 being closed, a ventilating fan 6 is stopped through the switch 10. Consequently, negative pressure in a control board body 1 is released thus facilitating opening of the door 2. When the door 2 is opened by some degree, the fan 6 is driven again and ventilation is carried out forcibly.