Power system battery temperature control
First Claim
1. A power outage lighting unit, comprising a cabinet, lighting means mounted on the cabinet, an insulated compartment in the cabinet adapted to hold a battery for powering the lighting means, means for receiving alternating electric current from a power line and supplying direct current at a lower voltage to charge a battery in said compartment, means connecting the battery to operate said lighting means when power is not received by the unit from a power line and to disconnect the battery from the lighting means when power is being received by the unit from a power line, and means to cool the battery compartment while power is being received by the unit from a power line, said cooling means comprising thermoelectric means inside of the insulated compartment for pumping heat out of the compartment, thermoelectric means adjacent to the outside of the cabinet, means to receive heat from said outside thermoelectric means and dissipate it to the atmosphere, thermally conductive means connecting said inside thermoelectric means to said outside thermoelectric means, and means for receiving alternating electric current from a power line and supplying direct current to power said inside and outside thermoelectric means.
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Accused Products
Abstract
Protection of rechargeable battery in power system by placing it in insulated chamber under temperature control of thermoelectric devices operated by the power system to pump heat out of the chamber or by the battery to pump heat into the chamber.
75 Citations
6 Claims
- 1. A power outage lighting unit, comprising a cabinet, lighting means mounted on the cabinet, an insulated compartment in the cabinet adapted to hold a battery for powering the lighting means, means for receiving alternating electric current from a power line and supplying direct current at a lower voltage to charge a battery in said compartment, means connecting the battery to operate said lighting means when power is not received by the unit from a power line and to disconnect the battery from the lighting means when power is being received by the unit from a power line, and means to cool the battery compartment while power is being received by the unit from a power line, said cooling means comprising thermoelectric means inside of the insulated compartment for pumping heat out of the compartment, thermoelectric means adjacent to the outside of the cabinet, means to receive heat from said outside thermoelectric means and dissipate it to the atmosphere, thermally conductive means connecting said inside thermoelectric means to said outside thermoelectric means, and means for receiving alternating electric current from a power line and supplying direct current to power said inside and outside thermoelectric means.
Specification