Robot joint and robot

Abstract

The utility model relates to a robot joint and a robot, the robot joint comprises a leg structure, a driving motor, a heat dissipation shell and a heat dissipation fan, the driving motor is connected with the leg structure; one part of the heat dissipation shell is connected with the leg structure, a first air duct extending in the radial direction of the driving motor is defined by the heat dissipation shell and the leg structure, the heat dissipation shell is provided with a first air inlet communicating with the first air duct, and the other part of the heat dissipation shell is arranged around the peripheral side of a shell of the driving motor; a second air duct communicating with the first air duct is defined by the driving motor and provided with an air outlet extending in the axial direction of the driving motor; the cooling fan is arranged in the first air channel and can feed external air into the first air channel through the air inlet. By means of the structure, heat dissipation can be conducted on the whole peripheral face of the driving motor, so that the heat dissipation efficiency of the driving motor is improved, and the heat dissipation effect of the driving motor in the robot joint is improved.

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