초록 ▼

A system provides a controlled supply of heat from an automotive engine to attery on board the vehicle. The system has a fluid circuit, a portion of which passes through an insulated box containing the battery and thereby heats the battery. Another portion of the fluid circuit bypasses the box. The

A system provides a controlled supply of heat from an automotive engine to attery on board the vehicle. The system has a fluid circuit, a portion of which passes through an insulated box containing the battery and thereby heats the battery. Another portion of the fluid circuit bypasses the box. The fluid circuit has one or more valves for selectively interrupting flow of heated fluid to the box, the valves operating in response to driver input or signals sent by a temperature sensor in the box. The box itself is comprised of rigid side walls of insulative material, a floor of the same material and a lid that closely fits to the side walls in only one orientation relative to the box. On the box's inner peripheral surface is a heat reflective layer to which is mounted the battery heating coil of the fluid circuit. A low heat conductive spacer borders air gaps between the battery and the heating coil.

대표청구항 ▼

[ What is claimed is:] [1.] A system for providing a controlled supply of heat from an engine to a battery, comprising:a fluid circuit;an insulated box containing the battery;means in the fluid circuit for supplying heated fluid from the engine to the battery;means in the fluid circuit connected to

[ What is claimed is:] [1.] A system for providing a controlled supply of heat from an engine to a battery, comprising:a fluid circuit;an insulated box containing the battery;means in the fluid circuit for supplying heated fluid from the engine to the battery;means in the fluid circuit connected to the supplying means for circulating the heated fluid through the box;means in the fluid circuit for transporting circulated fluid from the box;means in the fluid circuit for selectively interrupting flow of heated fluid from the supplying means to the box;wherein the insulated box comprises:side panels of insulative material;a base panel connected to the side walls;a cover panel removably attached to the side walls;a heat reflective layer in the box disposed so that the circulating means is between the reflective layer and the battery; andmeans in the box for spacing the circulating means from the battery.