Transverse flux torque motor with V-shaped air gaps forcedly cooled by fluid

Abstract

The invention provides a transverse flux torque motor with V-shaped air gaps forcedly cooled by fluid. The motor comprises a stator fixed shaft, a rotor shell and a motor shaft, wherein the motor shaft is connected on the stator fixed shaft by bearings; the stator fixed shaft is provided with multiple phases of motor stators; each phase of motor stator comprises a stator winding and two oppositely combined stator cores; the stator cores comprise motor stator yokes and stator bevel gears; the stator windings have trapezoidal cross sections and are arranged among the stator cores; a motor rotoris arranged in the inner cavity of the rotor shell and is of magnetism gathering structure formed by rotor magnetic poles and permanent magnets; and V-shaped air gaps are formed among the stator bevel gears, the rotor magnetic poles and the permanent magnets. The transverse flux torque motor has the following beneficial effects: the effective areas of the air gaps are increased, so the force density of the motor is higher; and cooling liquid flow cavities are arranged among motor stators and outside the motor stators at the two sides and cooling liquid via holes communicated with the cooling liquid flow cavities are arranged in the stator fixed shaft, thus ensuring heat dissipation of the motor.

Description

technical field [0001] The invention belongs to the field of permanent magnet motors, in particular to a V-shaped air gap transverse magnetic field moment motor with fluid forced cooling. Background technique [0002] Existing transverse field motors mainly include unilateral topology and bilateral topology in terms of topology. Among them, although the structure of the unilateral transverse field motor is relatively simple, its air gap magnetic flux density is low, and the output force density is small, so it is difficult to make a torque motor with high torque. The double-sided transverse field motor has two air gaps, and the rotor generally adopts a magnet-concentrating structure, which can form a high magnetic flux density in the air gap of the motor, so that the output force density is large, and it is easier to make a high-torque torque motor. The double-sided transverse field motor makes good use of the principle of the transverse magnetic field. However, the permane...

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Problems solved by technology

The double-sided transverse field motor makes good use of the principle of the transverse magnetic field. However, the permanent magnets and rotor poles of the traditional double-sided transverse field motor are in the shape of a cuboid. In this case, in the case of the same permanent magnet volume, in order to ensure the The effective length of the iron core used to form the air gap cannot be too long, which will reduce the effective area of ​​the air gap of the motor, increase the reluctance of the magnetic circuit, and make the magnetic flux leakage of the motor larger, thereby reducing the force density of the motor. The role of the expensive permanent magnets is not well exerted, which affects the performance of the motor

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