Power Tool Battery Pack Cell Support for Vibration Resistance

The patent applies beforehand cushioning by introducing a buffer layer between adjacent cylindrical battery cells. This buffer layer, made of elastic or shock-absorbing material, is positioned in advance to prevent vibration and impact from reaching the solder joints and internal components during power tool operation, thereby resolving the contradiction between maintaining high power output and preventing vibration-induced damage

The patent employs composite materials by combining different materials with complementary properties: the battery housing uses a first material while the buffer layer uses a second material with different mechanical properties (elastic or shock-absorbing characteristics). This composite structure allows the housing to provide structural support while the buffer material absorbs vibrations and impacts, simultaneously achieving sufficient electric power output and extended service life

The buffer layer is positioned beforehand between adjacent battery cells to cushion external impacts and vibrations before they can transmit to the solder joints and internal connections. This preventive cushioning protects the weak points in the multi-cell configuration while maintaining the high power output capability of the series-parallel arrangement

The patent applies local quality by placing the buffer layer specifically at strategic locations between adjacent battery cells where vibration and impact transmission occurs. This localized protection focuses the shock-absorbing function exactly where needed to protect solder joints, rather than requiring uniform protection throughout the entire battery pack structure