Battery pack having lower case of small thickness and laptop computer including the same
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United States of America Patent
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May 26, 2020
Grant Date -
Jan 18, 2018
app pub date -
Oct 27, 2016
filing date -
Oct 29, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
A battery pack that is mounted to a laptop computer, wherein two or more battery cells that can be charged and discharged are housed in a pack case; the battery cells are cylindrical battery cells having a circular vertical cross-section; the pack case is configured with a lower case in which battery cells are received and an upper case that is coupled to the lower case in order to close and seal the battery cells; in the upper case, a thickness of an upper contact point portion that contacts an upper end external circumferential surface of the battery cells is 70% or less of that of the remaining portions of the upper case, and a first sheet is attached to an outer surface of the upper case corresponding to the upper contact point portion; and in the lower case, a thickness of a lower contact point portion that contacts a lower end external circumferential surface of the battery cells is 70% or less of that of the remaining portions of the lower case, and a second sheet is attached to an outer surface of the lower case corresponding to the lower contact point portion.
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