1results about How to "Affect operating efficiency" patented technology

This application provides a brush assembly and a motor, relating to the field of brush technology, aiming to solve the problem that current high-current brushes cannot be adapted to small commutators. The brush assembly includes: a brush body and a brush braid; the brush body has a wide end and a narrow end connected together, the narrow end slidingly contacting the commutator, and the width of the narrow end is smaller than the width of the wide end in the circumferential direction of the commutator; the wide end is connected to a brush braid with a preset length. When the narrow end is completely worn, the brush braid keeps the wide end of the brush body spaced apart from the commutator. A thinner narrow end is provided at the end of the brush body to accommodate small commutators; a thicker brush braid is provided at the wide end of the brush body to carry high current; at the same time, the thicker brush braid is designed to a preset length to ensure that the wide end of the brush body does not contact the commutator after the narrow end is completely worn, preventing the brush body from contacting the commutator too wide, causing current circulation, overheating, and sparking that could damage the commutator, while also preventing the brush braid from entering the commutator gap.