Motor housing with built-in motor

The utility model provides a motor housing of a built-in motor, and belongs to the technical field of built-in motors. The problem that a motor shell of an existing middle motor is poor in heat dissipation effect is solved. According to the motor shell of the centrally-mounted motor, the centrally-mounted motor comprises the motor shell and end covers arranged at the two ends of the motor shell, the motor shell is provided with four separation rods distributed in the axial direction of the motor, the motor shell is provided with connecting blocks capable of being connected with a frame, the connecting blocks are arranged close to the separation rods, and a heat dissipation cavity is formed between every two adjacent separation rods. The motor shell is provided with a plurality of sets of heat dissipation strips, the heat dissipation strips are all arranged in the heat dissipation cavity, each heat dissipation strip is composed of two heat dissipation rods with opposite inclination directions, the end portions