Vehicular use power distribution apparatus and vehicular use power source apparatus

A vehicular use power distribution apparatus comprising:

• a battery mounted in a vehicle;
• main control means connected directly to said battery and receiving first and second mode switching signals from operation switches in the vehicle;
• a first switch means connected to said battery;
• a first power feed line, connected to said first switch means, for supplying power to loads mounted in the vehicle;
• a second switch means connected to said battery;
• a second power feed line connected to said second switch means;
• and
• sub control means connected to said second power feed line for controlling power supply to the loads, wherein
• said main control means, in a first state, sets said first switch means and said second switch means to a connection state so as to supply power from said battery to said first power feed line and said second power feed line;
• when there is no change in said first and second mode switching signals within a first predetermined time after a change of said first mode switching signal, said main control mean sets said first switch means to a nonconnection state as a second state where the supply of power to said first power feed line is stopped;
• and
• after a second predetermined time has passed in said second state, said main control means sets said second switch means to a nonconnection state as a third state where the supply of power to said second power feed line is stopped.