Patent ID: 6342773
Filing Date: 2002-01-29
Classification: H01M,H02J,Y02E

Abstract:
A charger comprising a battery pack and a charger section, wherein:said charger section includes: first terminal means, battery charging means connected to the first terminal, first air ports, and a blower for blowing cooling air towards and outwardly through the first air ports; said battery pack including: a housing having second air ports adjacent a first side of the housing and communicating with the first air ports to conduct the blown cooling air inwardly from the first air ports into a space formed by the housing, wherein air discharge openings are formed in the housing adjacent a second side thereof opposing the first side for discharging the blown air from the space, second terminal means projecting from the housing and into engagement with the first terminal means, batteries disposed in a first section of the space and connected to the second terminal means, first clearances formed between adjacent batteries, and second clearances formed between some of the batteries and the housing, the first and second clearances conducting cooling air traveling from the second air ports to the discharge openings, wherein cooling air from the second air ports enters a second section of the space disposed between the second air ports and the first section, the cooling air entering the second section in an entering direction generally toward the first section, and air redirecting means disposed in the second section of the space between the second air ports and the first section for redirecting the cooling air laterally of the entering direction.