Submergence-responsive switching member driving circuit
AssigneeAlps Electric Co., Ltd.
InventorHideki Tamura
Life of this patent
Estimating the term…
Abstract
A submergence-responsive switching member driving circuit includes: a driving unit for driving a switching member of a vehicle so as to open or close it by means of a driving current that flows through between two current input-output ends; a first power terminal for supplying the driving current; relays having exciting coils and switching contacts Sw1, SW2, which, so long as a control current flows through the exciting coil, connect each of the current input-output ends to the first power terminal respectively by means of the switching contacts, and further there are provided power breaking means for breaking, when submerged in water, supply of the control current to the first exciting coil of the first relay.
Claims5
A submergence-responsive switching member driving circuit, comprising:
- a driving unit having two current input-output ends, for driving a switching member of a vehicle so as to open or close it depending upon a difference in direction of a driving current that flows through between the current input-output ends;
- a first power terminal for supplying the driving current;
- first and second relays having exciting coils and switching contacts, which, so long as a control current flows through the exciting coils, connect each of the current input-output ends to the first power terminal respectively by means of the switching contacts;
- and
- power breaking means for breaking, when submerged in water, the supply of the control current to one of the exciting coils, wherein
- the power breaking means have a power supply line for causing the control current to flow and a ground line, and wherein the two lines are disposed adjacent and in parallel to each other in a state in which their conductors are exposed respectively.
Dependencies are inferred from the claim text.