Novel motor rotor structure

Abstract

The invention relates to a novel motor rotor structure comprising a punching sheet with the circular shape, and the inner circumference of the punching sheet is provided with positioning keys. The outer circumference of a rotor frame is provided with positioning key grooves matching with the positioning keys, and the punching sheet and the outer circumference of the rotor frame are in fit clearance; a plurality of inserting grooves allowing a magnetic steel to insert are arranged on the circumference of the punching sheet, the magnetic steel and the punching sheet are in fit clearance, and plastic rubber is injected in the clearance between two ends of the magnetic steel and the punching sheet. Since the punching sheet and the rotor frame are in fit clearance, the punching sheet and the rotor frame can be fixed tightly while the punching sheet is free of being pressed by a baffle; the magnetic steel and the punching sheet are in fit clearance, the plastic rubber is injected in the clearance between the magnetic steel and the punching sheet to fix the magnetic steel, the ends of the magnetic sheets are free of being shielded by the baffle, the magnetic steel can be applied to the motor rotor assembly directly, the occupied space is small, the rotor structure is simple, the space of the motor is saved effectively, material cost is saved, and the assembling efficiency of the rotor is improved.

Description

technical field [0001] The invention relates to the technical field of motor rotors, in particular to a novel motor rotor structure. [0002] Background technique [0003] With the further increase of global car ownership, the energy crisis, environmental pollution and global warming are becoming more and more prominent. New energy vehicles, especially hybrid vehicles, have become the focus of the development of domestic and foreign automobile companies. No matter from the point of view of environmental protection or energy, hybrid electric vehicles need a big development in the future, and its development will be related to the rise and fall of many industries, and may become a new economic growth point in the future. In my country, hybrid vehicles have a unique market, and there are very serious traffic problems and vehicle exhaust pollution problems in metropolises. As a small energy-saving and emission-reducing daily means of transportation, hybrid electric vehicles ar...

AI Technical Summary

Problems solved by technology

[0004] The traditional drive motor currently on the market has a baffle at the end of the rotor, and the baffle is installed on the rotor bracket through bolts to block the magnetic steel and the punching plate. It is bulky and has the following obvious defects: 1) Waste of space, For the compact drive assembly of the whole vehicle, the baffle increases the space requirements for the engine compartment; 2) Waste of materials, because the rotor has magnetic steel, the baffle must be made of non-magnetic precious metal materials; 3) It is not conducive to the assembly of the rotor, which increases Assembly difficulty and process reduce assembly efficiency; 4) Bolts are easy to fall off and cannot be tightly fixed

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