| 摘要 |
PROBLEM TO BE SOLVED: To reduce dimensions of a brush holder device, and to relax restrictions on a maximum current and continuous current application time. SOLUTION: Heat generated by a brush 16 is absorbed by a Peltier device 7 via a metal plate 9, and further, pumped into a housing 17, which is a heatsink for cooling the metal plate 9 and the housing 17.
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