Matsushita Electric Industrial Co., Ltd.

Other

Panasonic Ev Energy Co., Ltd.

Primearth Ev Energy Co., Ltd.

Yuji Torii

Toshiaki Nakanishi

Masahiko Suzuki

Masahiro Takada

Kunio Kanamaru

Daisuke Koba

Jun Okuda

Yasushi Matsukawa

Yukie Uemura

Kazuhiko Tamesue

Yuji Sakayanagi

A power feeding system of the present disclosure includes a control unit. In a case where a magnitude of supply destination power is smaller than an upper limit value of the power supply capability of the power source, the control unit controls the charge/discharge control circuit so as to meet the supply destination power based on power output from the power source, and to charge the storage battery with power which is a difference obtained by subtracting the supply destination power from the upper limit value of the power supply capability of the power source. In a case where the magnitude of the supply destination power is more than or equal to the upper limit value of the power supply capability of the power source, the control unit controls the charge/discharge control circuit so as to meet the supply destination power by both the power source and the storage battery.

Power feeding system

A heater with temperature detecting device, arranged to accurately detect the temperature of a laminated sheet heater over long periods, and a battery structure including the same. A first embodiment includes a laminated sheet heater and a temperature sensor having a temperature measuring portion. The laminated sheet heater includes first and second insulating resin films, a heater element, a first metal sheet, and a second metal sheet and includes a heater metallic section in which, any one of only the first metal sheet and only a combination of the first metal sheet and the second metal sheet is arranged in a lamination layering direction of the laminated sheet heater. The temperature sensor is fastened to the heater metallic section with a flat rivet and fixed to an outer surface of the first metal sheet with the temperature measuring portion in contact with the first metal sheet.

Heater with temperature detecting device and battery structure with the heater

A battery power source device is composed of a plurality of battery modules, in which each battery module includes a number of serially connected cells. A voltage detection circuit is associated with each battery module. Each voltage detection circuit includes a differential amplifier that detects a voltage across end terminals of the associated battery module, and the detected voltage is digitized and output through a photo-coupler to a controller. The differential amplifier is connected to the battery module through photo-relays, which are closed in response to an open/close control signal only during a voltage detection operation, so that leak currents are eliminated. The differential amplifier and an associated A/D converter are provided with operating power obtained by transforming the voltage of the battery module with regulators, whereby noise effects are eliminated.

Battery voltage detector

Instrument for measuring voltages of cells

Power supply device

Growing community of inventors

Toyohashi, Japan

Yuji Torii