Panasonic Ev Energy Co., Ltd.

Panasonic Corporation

Akihiro Aoyama

Jun Okuda

Hirotsugu Fusayasu

Yasuhiro Wada

Yusai Murakami

Masato Tobinaga

Masafumi Kumoi

Shinkuro Fujino

Shouichi Mimura

A circuit board is arranged on an end face of a lens barrel on a lens mount side and installed with an electronic circuit device, a plurality of connection terminals which are arranged in an electrically insulating state in the lens mount and serve to connect the electronic circuit device on the circuit board with an electronic circuit device inside a camera body, and a wiring member is for connecting the plurality of connection terminals with the circuit board, where the wiring member is provided with a ground connection section which is connected to a ground pattern of the circuit board and also electrically connected to a connection terminal that is to be a ground terminal among the plurality of connection terminals, and an extended wiring pattern is for electrically grounding the ground connection section on a metal portion of the lens mount.

Digital camera and interchangeable lens unit

A cooling device including an intake duct achieving fluid communication between a vehicle interior and an inner part of a battery case, a fan unit for supplying the air via the intake duct to the inner part of the battery case, and a control device is used. The fan unit includes a fan and a motor driven by a constant voltage system. The control device includes a current value detecting portion and a judging portion. The current value detecting portion detects a current value of an electric current supplied to the motor. The judging portion compares the detected current value and a preset reference current value and, when the detected current value is lower than the reference current value, judges that there is an anomaly in a volume of the air supplied to the battery case.

Cooling device and power supply

A temperature management apparatus for managing the temperature of cells, which includes an air intake duct, a fan unit, a first temperature detector (temperature sensors, a temperature detecting part) for detecting temperature Tb of the cells, a second temperature detector (a temperature sensor, a temperature detecting part) for detecting ambient temperature Ta, and a control device. The fan unithas a fanand a motor. The control devicehas a storage partand a deciding part. The storage partstores a cooling-necessitating temperature Tc and a heating-necessitating temperature Th. The deciding partdirects the fan unitto drive the fanin a case where the temperature Tb of the cells becomes equal to or higher than both the temperature Ta of the air and the cooling-necessitating temperature Tc, or in a case where the temperature Tb of the cells becomes equal to or lower than both the temperature Ta of the air and the heating-necessitating temperature Th.

Temperature management apparatus and power supply

Growing community of inventors

Osaka, Japan

Akihiro Aoyama