Abstract: An radiator includes a radiator body. A first side of the radiator body defines an arc-shaped heat conducting surface. A second side of the radiator body defines a heat dissipating tooth area. The heat dissipating tooth area includes a middle heat dissipating tooth area and two trunk heat dissipating tooth areas symmetrically arranged on two sides of the middle heat dissipating tooth area. A plurality of first heat dissipating fins is arranged in the middle heat dissipating tooth area. Each of the trunk heat dissipating tooth areas includes a trunk and a plurality of second heat dissipating fins. Each trunk is obliquely arranged on the radiator body. The plurality of second heat dissipating fins is arranged on one side of a corresponding trunk away from the plurality of first heat dissipating fins.

Abstract: A motor includes a flexible variable flow channel arranged in the motor along a heat source distribution direction. The flexible variable flow channel includes a flow channel main body, at least one flexible component module mounted in the flow channel main body, a support body, and a quick adapter. The flow channel main body is configured to store and transfer a heat transferring liquid. The heat transferring liquid is configured to dissipate heat from the heat sources. The at least one flexible component module is configured to change a flow and a flow state of the heat transferring liquid flowing through the at least one flexible component module. The support body is configured to support the at least one flexible component module. The quick adapter is configured to quickly mount the at least one flexible component module. The at least one flexible component module is selected from four structures.