ERRONEOUS WIRING PROTECTOR AND APPARATUS MOUNTED WITH THE SAME

Japanese Patent JP3855159

B2

PROBLEM TO BE SOLVED: To prevent damage on an apparatus by realizing that power sources of AC100 V and AC200 V are accidentally alternately wired to the same apparatus in an initial construction.
SOLUTION: An erroneous wiring protector of a bath room dryer fan comprises a circulation fan 9 and a heater 10 connected to an AC200 V connecting terminal base 6 through relay contacts 15b and 16b for normally-open circulation fan and heater, a twin contact 14b of a normally-open ventilation fan relay provided between an AC100 V connecting terminal base 7 and a ventilation fan connecting terminal base 8 to which a ventilation fan 5 is connected, and a control circuit 13 which receives electricity from a power source circuit 11 which outputs a AC voltage and controls the circulation fan, the heater relay, and the relay for the ventilation fan. It also comprises a voltage discriminating circuit 20 which is connected to the AC100 V connecting terminal base and outputs a detection signal only when it detects a voltage of AC200 V, and a control circuit which receives the detection signal and controls to keep at least the open state of the twin contact of the ventilation fan relay.

JP5416666	Safety cabinet
JPS60175944	AUTOMATIC VENTILATING DEVICE
JP5614874	Range hood fan

Nao Fujishiro
Shinji Adachi

JP2002118073A

December 06, 2006

April 19, 2002

Click for automatic bibliography generation  

Mitsubishi Electric Corporation

F24F7/007; H02H11/00; F24F11/02; H02J1/00; (IPC1-7): H02H11/00; F24F7/007; F24F11/02; H02J1/00

JP7055334A
JP2003141U
JP9051631A
JP5240464A
JP2002102596A
JP10148372A
JP3210612A
JP9119701A
JP63116318A
JP61162737U

Souji Sasaki
Hisao Kobayashi
Saburo Kimura
Noboru Omura

Previous Patent: PLASMA TYPE PFC DECOMPOSITION SYSTEM AND PFC DECOMPOSITION METHOD

Next Patent: SOLAR RADIATION CONCENTRATING DEVICE