Battery cell cooling system
AssigneeVarta Batterie Aktiengesellschaft
InventorsJurgen Brinkmann, Hermann Franke
Life of this patent
Estimating the term…
Abstract
Multi-cell battery cooling is accomplished by cooling elements immersed in the cell-top electrolyte. The elements have high heat conductivity and electric resistance. The cooling medium has low electric resistance. Various configurations of circulatory flow paths provide various utilizations for the medium beyond that of cooling the cells.
Claims17
A system for dissipating the heat developed in the cells of a multicell storage battery, comprising:
- cooling elements immersed in the electrolyte in the tops of said battery cells;
- said cooling elements being formed of material having high heat conductivity and electric resistance, and said medium having low electric resistance, whereby said cooling medium is caused to circulate through said elements is substantially potential-free manner, and
- said cooling elements being connected between manifolds in groupings:
- means for causing a cooling medium to circulate through said cooling elements, said circulation of cooling medium being produced by a pump causing passage of said medium via said manifolds through said elements;
- heat exchanger means connected between said manifolds and equipped with a blower for forced air cooling;
- a bypass conduit for said heat exchanger also connected between said manifolds;
- a two-way valve for causing said medium to flow alternatively through said heat exchanger means and said bypass conduit;
- heat sensing means located in individual cells for separately controlling saidpump, said two-way valve and said forced air cooling blower;
- and
- compressor means connected to one side, and expansion means connected to the other side of said heat exchanger means, said pump being positioned in said bypass conduit.
The system of claim, 1, wherein said battery is thermally insulated from the ambient. j
A system for dissipating the heat developed in the cells of a multicell storage battery, comprising:
- cooling elements immersed in the electrolyte in the tops of said battery cells;
- said cooling elements being formed of material having high heat conductivity and electric resistance, and said medium having low electric resistance, whereby said cooling medium is caused to circulate through said elements in substantially potential-free manner, and
- said cooling elements being connected between manifolds in groupings;
- means for causing a cooling medium to circulate through said cooling elements, said circulation of cooling medium being produced by a pump causing passage of said medium via said manifolds through said elements;
- heat exchanger means connected between said manifolds and equipped with a blower for forced air cooling;
- heat sensing means located in individual cells for separately controlling said pump and said forced air cooling blower;
- and
- compressor means connected to one side, and expansion means connected to the other side of said heat exhanger means.
Dependencies are inferred from the claim text.