Range extender and controller cooling structure

Abstract

The invention discloses a controller cooling structure, and the structure comprises a motor, a controller arranged outside the motor and an air duct with an inlet end communicated with the interior of the motor. The outlet end of the air duct faces the controller; a motor shell of the motor is provided with an air inlet, a plurality of air suction blades are arranged on the end face of the side, facing the air inlet, of a rotor shell located on the inner side of the motor shell, and a hole groove penetrating through the end face of the rotor shell is formed in the position, where any air suction blade is located, of the rotor shell. According to the controller cooling structure, the air suction blades and the hole grooves are arranged in the rotor shell, the positions of the hole grooves are matched with the positions of the air suction blades, air entering the motor shell enters the rotor shell from the hole grooves as much as possible under the action of the air suction blades, and the air flow in a motor is increased; an air duct is added on the basis of the cooling motor, cooling devices such as a fan do not need to be arranged for the controller, the number of parts is reduced, assembly difficulty is lowered, and the size of the controller is effectively controlled. The invention further provides a range extender comprising the controller cooling structure.

Description

technical field [0001] The invention relates to the field of range extenders, in particular to a controller cooling structure. It also relates to a range extender comprising the cooling structure of the above-mentioned controller. Background technique [0002] Most existing range extenders have a magneto, a generator, and a fan to cool the controller. The range extender has many components, long axial dimension, and complex structure. It is difficult to install a fan on this basis, and the utilization rate of cooling air is low. It often requires the controller to rely on its own shell to further dissipate heat. Therefore, the controller The relatively large volume is not conducive to the structural optimization of the range extender. [0003] To sum up, how to simplify the heat dissipation and cooling of the controller and improve the utilization rate of the cooling air has become an urgent problem to be solved by those skilled in the art. Contents of the invention [...

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