Thermoelectric temperature stabilized battery system
First Claim
1. A temperature-stabilized battery system adapted for operation in an environment having a different temperature than the system, comprising:
- a battery having at least one electrochemical cell;
a Peltier type heat pump module having a hot thermal transfer face, a cold thermal transfer face and means for transferring thermal energy therebetween, one of the thermal transfer faces being in thermal transfer relation to said battery;
thermal insulation means surrounding at least a portion of said battery for reducing the flow of thermal energy to and from the battery; and
a heat sink in thermal transfer relation to the other thermal transfer face of said heat pump module and exposed to the environment exterior to said battery for transferring thermal energy from said hot thermal transfer face to said cold thermal transfer face.
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Abstract
A temperature stabilized battery system including a battery having at least one rechargeable electrochemical cell, a Peltier type heat pump providing a hot thermal transfer face, a cold thermal transfer face and semiconductor means for transferring thermal energy between the two faces, one thermal transfer face being in thermal transfer relation to the battery and the other face being in thermal transfer relation to a heat sink. Thermal insulation surrounds at least a portion of the battery for reducing the flow of heat into and out of the battery except via the heat pump. The battery is wrapped or encased in a thermally conductive blanket which is surrounded by the insulation means.
130 Citations
9 Claims
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1. A temperature-stabilized battery system adapted for operation in an environment having a different temperature than the system, comprising:
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a battery having at least one electrochemical cell; a Peltier type heat pump module having a hot thermal transfer face, a cold thermal transfer face and means for transferring thermal energy therebetween, one of the thermal transfer faces being in thermal transfer relation to said battery; thermal insulation means surrounding at least a portion of said battery for reducing the flow of thermal energy to and from the battery; and a heat sink in thermal transfer relation to the other thermal transfer face of said heat pump module and exposed to the environment exterior to said battery for transferring thermal energy from said hot thermal transfer face to said cold thermal transfer face. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A temperature-stabilized battery system for supplying emergency electrical power to electrical equipment in the event of failure of external power normally supplied to such equipment, the system comprising:
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at least one electrochemical cell constituting such battery, the battery being connectable to said electrical equipment upon the cessation of external power; a Peltier type thermoelectric heat pump device having two mutually spaced plates, one of said plates constituting a hot thermal transfer face and the other of said plates constituting a cold thermal transfer face, and means between said plates for establishing a temperature differential between said hot and cold faces upon the passage of current therethrough; means for thermally coupling one of said plates to said battery; means for thermally coupling the other of said plates to thermal dissipating means exposed to the ambient environment; and thermal insulation means substantially surrounding said battery, heat pump and thermal coupling means, except for a portion of said heat pump means in thermal contact with said thermal dissipating means. - View Dependent Claims (8, 9)
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Specification