▎ 摘　　要

NOVELTY - The utility model relates to a hub motor technology field of electric power-assisted vehicle, especially an inner rotor permanent magnet hub motor for electric power-assisted vehicle, comprising a hub motor, the middle of the left end face of the hub motor is fixedly connected with a motor connecting line, the left end face of the hub motor is fixedly connected with a hollow shell, the left side of the inner part of the hollow shell is slidingly connected with a pull rod, the top end of the right side of the pull rod is fixedly connected with a fixing plate, the right end face of the fixing plate is fixedly connected with graphene radiating patch, the outer side of the pull rod is slidingly connected with a compression spring; In the utility model, through the hollow shell, a compression spring, a pull rod, a fixing plate and graphene radiating patch, so that the device can radiate the left end face of the hub motor, preventing the hub motor running for a long time to generate high temperature problem, so as to solve the problem that the hub motor long-time overheating operation influences the service life.