Motor and controller assembly of integrated structure

Abstract

The invention provides a motor and controller assembly of an integrated structure. The motor and controller assembly comprises a motor casing, the rear end of the motor casing is open, a first cavity which is cylindrical is formed in the rear end of the motor casing, a stator, a rotor and a motor shaft are installed in the first cavity, and the motor casing is provided with a plurality of first threaded holes in the circumferential direction. The motor and controller assembly of the integrated structure is simple and compact in structure and reasonable in layout, a motor part and a controller part are arranged closely, the use number of cables and plugs is reduced, and therefore production cost is lowered, production efficiency is improved, the cables nearly have no exposed portion, abrasion damage caused by contact with a compartment and rain erosion are avoided, and the fault rate is reduced; meanwhile, a motor is separated from a Hall component through a plastic shell, rain erosion is avoided, and the service life and stability of the motor and a controller are guaranteed.

Description

technical field [0001] The invention relates to the technical field of motors and motor control, in particular to an integrated motor and controller assembly. Background technique [0002] At present, electric bicycles, motorcycles and tractors mostly use brushless DC motors. The functions of brushless DC motors such as speed regulation, undervoltage protection, motor overcurrent protection, brake power failure, and power display rely on Hall sensors and controllers. Realization; now the motors and controllers in most electric vehicles are installed separately in different positions of the car body, and the motors and controllers need to be connected with longer cables and more plug-ins, which will not only increase production costs and The production efficiency is reduced, and the exposure of the cable box insert is vulnerable to abrasion and water corrosion, resulting in an excessively high failure rate. [0003] At present, there are also controllers and motors on the ma...

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Problems solved by technology

[0002] At present, electric bicycles, motorcycles and tractors mostly use brushless DC motors. The functions of brushless DC motors such as speed regulation, undervoltage protection, motor overcurrent protection, brake power failure, and power display rely on Hall sensors and controllers. Realization; now the motors and controllers in most electric vehicles are installed separately in different positions of the car body, and the motors and controllers need to be connected with longer cables and more plug-ins, which will not only increase production costs and Reduce production efficiency, and the exposed cable box inserts are susceptible to abrasion and water corrosion, resulting in a high failure rate

[0003] At present, there are also controllers and motors on the market that are integrated into one structure, but the structure is unreasonable, especially in terms of water resistance. The control circuit board and Hall components are easily installed together with the motor. It is easy to touch the water, which has great potential safety hazards. Facts have proved that the failure rate of such an integrated controller and motor assembly is not lower than that of the separated type

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