| 摘要 |
PURPOSE:To lessen noise and reduce deterioration of the battery by means of enabling voltage control which is applied to the cooling fan motor using a lamp switch of a headlight or another on the control circuit of a cooling fan motor. CONSTITUTION:If a lamp switch 13 is turned off, and outlet water temperature of a radiator is at more than the determined value, a cooling fan motor 20 operates on the direct connecting side of a control relay 15, and voltage from a battery 11 is applied to the cooling fan motor 20 which is turned. When the lamp switch 13 is turned on, since the control relay 15 is operated and its contact 15b is turned on, the circuit of the cooling fan motor 20 passes through a resistor 21, and it is connected thereto. In consequence, voltage applied to the cooling fan motor 20 drops as much as the lot depending on the resistor 21 resulting in reducing the number of revolution of the coolig fan motor 20. |
