| 摘要 |
PURPOSE:To provide an air condition indicating system for vehicle, which is capable of indicating inlet flow and outlet flow of air by way of illustration with lighting of self-luminescing elements and also capable of detecting the temperature of air flowing through the diffuser duct and indicating that it is higher or lower than a required temperature by increasing brightness of the self-luminescing elements of cold or warm color. CONSTITUTION:Brightness controlling circuit 65 connected to a third to a fifth lamps 643, 644, 645 has one terminal (c) connected to blue lamps 645, 647, 649 and other terminal (d) connected to red lamps 644, 646, 648. Further, terminals (e), (f) of the control circuit 65 are connected to a sensor 521 for detecting the temperature of air at the outlet port of air duct. On the other hand, since the temperature detecting sensor 521 has a negative resistance characteristic, resistance of this sensor 521 is reduced and level of output signal is raised as the temperature of air flowing through the outlet duct is raised. Therefore, brightness of red lamps is increased when the temperature is higher than a required temperature, whereas brightness of blue lamps is increased when the temperature is lower than the required temperature. |
