Switch device for on-board power supply and on-board power supply device
Number of patents in Portfolio can not be more than 2000
United States of America
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Feb 4, 2020
Grant Date -
Dec 27, 2018
app pub date -
Feb 3, 2017
filing date -
Feb 3, 2017
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A relay module includes: power supply lines; main relay; sub relay with different current capacities. The first power supply line is connected to a main battery, the second power supply line is connected to a sub battery, and the third power supply line is connected to a load. The main relay is between the first and third power supply lines. The sub relay is between the second and third power supply lines. The main relay disconnects when a ground fault occurs in the first power supply line, and connects when a ground fault occurs in the second power supply line. The sub relay disconnects with a ground fault in the second power supply line, and connects with a ground fault in the first power supply line. Whichever one of the main relay and the sub relay has a larger current capacity becomes electrically connected, and the other becomes electrically disconnected.
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