Battery Thermal Management System
First Claim
1. A power supply device comprising:
- an enclosure; and
one or more cell banks housed within the enclosure, each cell bank comprising;
a first cell frame section defining a first surface of the cell bank and including a plurality of recesses to align battery cells;
a second cell frame section defining a second surface of the cell bank opposite to the first surface of the cell bank and aligning the battery cells in conjunction with the first cell frame section, at least one of the first cell frame section or the second cell frame section comprising conductive connectors for the battery cells, the conductive connectors configured to generate a combined power output for the battery cells;
one or more portions of thermal interface material contacting the battery cells to transfer heat from the battery cells;
a vapor chamber located between and spaced apart from the first cell frame section and the second cell frame section, the vapor chamber forming a serpentine path extending between the battery cells, and, along the serpentine path, the vapor chamber contacts the one or more portions of thermal interface material promoting heat transfer from the battery cells to the vapor chamber; and
a spring configured to generate a spring force against at least one of the battery cells along the serpentine path of the vapor chamber, the spring force causing the vapor chamber to increase contact with the one or more portions of the thermal interface material.
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Accused Products
Abstract
An example system is disclosed for thermal management of batteries. The system may include a cell bank that includes first and second cell frame sections, a heat bus, and thermal interface material. The first and second cell frame sections may define opposite surfaces of the cell bank. Each cell frame section may include recesses to align battery cells for welding and provided conductive connections between the cells to create a string of cells with a combined power output. Each recess may include a divider between the battery cells to preload the cells against a thermal junction during assembly. The heat bus may be provided between the cell frame sections. The heat bus may include heat pipes that extend between the battery cells and across the cell frame sections. The thermal interface material may be positioned to transfer heat from the cells to the heat pipes at their thermal junction.
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Citations
20 Claims
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1. A power supply device comprising:
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an enclosure; and one or more cell banks housed within the enclosure, each cell bank comprising; a first cell frame section defining a first surface of the cell bank and including a plurality of recesses to align battery cells; a second cell frame section defining a second surface of the cell bank opposite to the first surface of the cell bank and aligning the battery cells in conjunction with the first cell frame section, at least one of the first cell frame section or the second cell frame section comprising conductive connectors for the battery cells, the conductive connectors configured to generate a combined power output for the battery cells; one or more portions of thermal interface material contacting the battery cells to transfer heat from the battery cells; a vapor chamber located between and spaced apart from the first cell frame section and the second cell frame section, the vapor chamber forming a serpentine path extending between the battery cells, and, along the serpentine path, the vapor chamber contacts the one or more portions of thermal interface material promoting heat transfer from the battery cells to the vapor chamber; and a spring configured to generate a spring force against at least one of the battery cells along the serpentine path of the vapor chamber, the spring force causing the vapor chamber to increase contact with the one or more portions of the thermal interface material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification