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DC Motor with a Long-Life Carbon Brush Structure

Sep 30,2026
DC Motor with a Long-Life Carbon Brush Structure
  • Expiration Date:
  • Jul 20,2022 - Jul 20,2027
  • Certification bodies:
  • 国家知识产权局

This certificate concerns a DC motor with a long-life carbon brush structure. In a brushed DC motor, carbon brushes maintain electrical contact with the rotating commutator. Wear at this contact can limit motor service life. The design described in this certificate addresses the carbon brush structure.

The English title is a descriptive translation. Please refer to the original Chinese certificate for the official patent title, number and holder.