Power supply system in vehicle door

A power supply system in a vehicle door, comprising:

• a non-contact power receiving part receiving a power supply in a non-contact manner;
• a battery connected to the non-contact power receiving part so as to be charged with an electrical power received by the non-contact power receiving part;
• and
• an electrical component connected to the battery so as to receive a power supply from the battery in a state where at least the non-contact power receiving part does not receive an electrical power, wherein
• the power supply system further includes a switching part switching a power supply source for the electrical component between the non-contact power receiving part and the battery,
• the switching part detects current from the non-contact power receiving part, and when the current from the non-contact power receiving part is detected, the electrical power is supplied from the non-contact power receiving part to the electrical component and the electrical power is not supplied from the battery to the electrical component, and when the current from the non-contact power receiving part is not detected, the electrical power is supplied from the battery to the electrical component,
• an electrical component provided in a vehicle door, which is different from the electrical component, is connected to a power supply source provided in a vehicle body by a wired power line, and
• the non-contact power receiving part is provided in a part of the vehicle door directed to a vehicle interior, and faces a non-contact supply part provided on a side of the vehicle body in a state where the vehicle door is closed.