Alarm and power window operation device when car main key switch off window is opened

摘要

The present invention is a switching circuit in which the timer (T) is operated by the main key switch (sw ₁ ) as a whole to warn the vehicle to leave the main key and to leave the power window open and to automatically close the window. It is configured to operate warning means and power window lowering actuator for the set time.;The detailed configuration is that power is applied to the main key switch (sw ₁ ), transistor (TR ₂ ), transistor (TR ₁ ) and timer (T), and main key switch (sw ₁ ) is a conventional power window regulator unit. (u) and grounded via diode D, transistor TR ₂ has its base applied at the leading end of main key switch sw ₁ and its collector open Open switch sw ₂ and transistor TR ₁ . It is applied to the base of.;A transistor (TR ₁₎ is also applied in the front end of the Open OFF switch (sw ₂₎ Open OFF switch (sw ₂₎ is grounded via a diode (D).;The transistor TR ₁ is applied to the operating terminal of the window motor M built in the above-described power window regulator unit u and to the simultaneous timer T, which is a non-operating contact diode. Ground via (D) and the working contact is configured via grounding diode (D) in the warning lamp (P) and warning bell (B), respectively.