Abstract: A circuit breaker device is provided with a main contactor part that can switch between connection and disconnection of a battery and a circuit, and a circuit breaker (10a) that can disconnect the battery. The circuit breaker (10a) is provided with: a connector connection part (41b) having a pair of connector circuit terminals (41bp, 41bn) related to passing electricity through a coil for the main contactor part; a connector (43) that is attachable to and detachable from the connector connection part (41b) and has a connector shorting terminal (43a) that shorts the pair of connector circuit terminals (41bp, 41bn) upon attachment to the connector connection part (41b); and a claw part (44a) for restricting attachment of the connector (43) to the connector connection part (41b).

Abstract: A circuit breaker device is provided with a main contactor part that can switch between connection and disconnection of a battery and a circuit, and a circuit breaker (10a) that can disconnect the battery. The circuit breaker (10a) is provided with: a connector connection part (41b) having a pair of connector circuit terminals (41bp, 41bn) related to passing electricity through a coil for the main contactor part; a connector (43) that is attachable to and detachable from the connector connection part (41b) and has a connector shorting terminal (43a) that shorts the pair of connector circuit terminals (41bp, 41bn) upon attachment to the connector connection part (41b); and a claw part (44a) for restricting attachment of the connector (43) to the connector connection part (41b).

Abstract: A power supply apparatus includes a controller. If the controller detects that the internal resistance of a battery detected by an internal resistance detecting unit is relatively high, then the controller switches a first switch from an open state to a closed state using a first threshold value with respect to the voltage difference between a battery voltage and a system voltage, and if the controller detects that the internal resistance of the battery is relatively low, then the controller switches the first switch from the open state to the closed state using a second threshold value which is smaller than the first threshold value.

Abstract: A cooling structure having a sufficient cooling efficiency in cooling an electricity storage device while securing a living space in a vehicle cabin when installed in a compact vehicle having a short distance from a rear seat to the rear end of the vehicle. A battery is contained in an IPU installed in the vehicle. The cooling structure for the battery has an air inlet opened into the vehicle cabin, an air intake duct extending from the air inlet to the IPU and a cover disposed to cover the air inlet and having a hole communicating the air intake duct with the inner side of the vehicle cabin. The air inlet has an opening inclined toward the inner side of the vehicle cabin in one side section of a rear portion of the vehicle cabin near a C-pillar located obliquely posterior to a rear seat.

Abstract: An electric vehicle may include a main battery, a charging system electronic device, an electrically powered system-based electronic device, a first high-voltage electric wire; and a second high-voltage electric wire. The electrically powered system-based electronic device and the charging system electronic device may be sequentially disposed in parallel. The electric vehicle may further include a first junction relay capable of isolating the first high-voltage electric wire; and a second junction relay capable of isolating the second high-voltage electric wire. The first junction relay is disposed between the main battery and the charging system electronic device, and a first pre-charge relay which bypasses the first junction relay is disposed in parallel with the first junction relay, and the second junction relay is disposed between the charging system electronic device and the electrically powered system-based electronic device.

Abstract: A power supply apparatus includes a controller. If the controller detects that the internal resistance of a battery detected by an internal resistance detecting unit is relatively high, then the controller switches a first switch from an open state to a closed state using a first threshold value with respect to the voltage difference between a battery voltage and a system voltage, and if the controller detects that the internal resistance of the battery is relatively low, then the controller switches the first switch from the open state to the closed state using a second threshold value which is smaller than the first threshold value.

Abstract: A cooling structure having a sufficient cooling efficiency in cooling an electricity storage device while securing a living space in a vehicle cabin when installed in a compact vehicle having a short distance from a rear seat to the rear end of the vehicle. A battery is contained in an IPU installed in the vehicle. The cooling structure for the battery has an air inlet opened into the vehicle cabin, an air intake duct extending from the air inlet to the IPU and a cover disposed to cover the air inlet and having a hole communicating the air intake duct with the inner side of the vehicle cabin. The air inlet has an opening inclined toward the inner side of the vehicle cabin in one side section of a rear portion of the vehicle cabin near a C-pillar located obliquely posterior to a rear seat.

Abstract: An electric vehicle may include a main battery, a charging system electronic device, an electrically powered system-based electronic device, a first high-voltage electric wire; and a second high-voltage electric wire. The electrically powered system-based electronic device and the charging system electronic device may be sequentially disposed in parallel. The electric vehicle may further include a first junction relay capable of isolating the first high-voltage electric wire; and a second junction relay capable of isolating the second high-voltage electric wire. The first junction relay is disposed between the main battery and the charging system electronic device, and a first pre-charge relay which bypasses the first junction relay is disposed in parallel with the first junction relay, and the second junction relay is disposed between the charging system electronic device and the electrically powered system-based electronic device.