Honda Giken Kogyo Kabushiki Kaisha

Koichiro Ozawa

Yasuo Kitami

Yasuyuki Sando

Harumi Takedomi

Shigeru Suzuki

Hiromitsu Sato

Yoshinori Mita

Osamu Hasegawa

Minoru Nakajima

Toshiyuki Watanabe

A battery temperature regulating apparatus efficiently controls the charging temperature of a battery assembly which serves as a power source to energize a propulsive motor on an electric vehicle to run on a road. A fluid jacket is disposed in heat exchange relationship with the battery assembly and supplied with a coolant to regulate the temperature of the battery assembly with a radiator or an electric heater for allowing the battery assembly to be charged in a temperature range from 20.degree. C. to 35.degree. C., for example, which is optimum for the charging of the battery assembly. The battery temperature regulating apparatus can maintain the optimum temperature range more reliably than a conventional apparatus which regulates the temperature of the battery assembly as it is charged with a forced flow of hot air or cool air, and can reduce the electric energy consumption to 1/3 of that of the conventional apparatus.

Battery temperature regulating apparatus

A battery assembly has a temperature control mechanism for effecting cooling or heating unit batteries for operation in a desired temperature range. First heat-exchange planar members of respective heat-transfer plates are sandwiched between the unit batteries that are arranged in an array, and second heat-exchange planar members thereof are held against transverse narrow side walls of the unit batteries. The unit batteries and the heat-transfer plates are securely fastened together by holder plates. Heat produced when the unit batteries are in operation is transferred through the first and second heat-exchange planar members of the heat-transfer plates and dissipated into an appropriate cooling medium, such as atmospheric air or another cooling fluid, through a heat-exchange.

Battery assembly with temperature control mechanism

Growing community of inventors

Wako, Japan

Koichiro Ozawa