Brushless double-mechanical-port motor

Abstract

A brushless double-mechanical port electric machine comprises a first stator 1, a first rotor 2, a second stator 23 and a second rotor 3. The stators 1, 23 and the stator 2, 3 are all disk type structure. The two stators 1, 23 are positioned in outside of the two rotor 2, 3. The second rotor 3 is connected with an engine output shaft 25, the first rotor is connected with the vehical driving axle 26; the two rotors 2, 3 are coupled in electromagnetism depending on the electromagnetic field in the second air gap 18; armature windings are mounted on the two stators 1, 23, the power supply mode of the armature is random phase; a magnetic steel is adhered on the first rotor 2, the second rotor 3 is composed of a series of tooth structures; the second stator 23 and the second rotor 3 generate electromagnetic action to transfer the engine power to the first stator 2. The armature windings of the stator need not rotate avoiding the deficiency of power supply by the brush and the slip ring.

Description

technical field [0001] The invention relates to a motor, in particular to a motor with double mechanical ports. Background technique [0002] A dual mechanical port motor is an electric motor with two mechanical ports, the main field of application is hybrid vehicle drive. One of the mechanical ports is connected to the engine and the other mechanical port is connected to the vehicle drive shaft. Because the two mechanical ports of this motor are independent, the road load changes of a hybrid vehicle equipped with this motor are not directly transmitted to the engine. The engine can be controlled to always work in its high-efficiency zone, which effectively improves the efficiency of the entire power system and reduces emissions at the same time. It is of great significance in both energy saving and environmental protection. [0003] In invention patent CN1929243, CN1738163, CN1945939 and CN1694339 all relate to this motor. Although these motors have different specific i...

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Problems solved by technology

[0007] The purpose of the present invention is to overcome the problems that the dual mechanical port motor needs brush power supply, the internal rotor is difficult to dissipate heat, and the number of phases cannot be different from that of the two-phase expansion in the existing patent, and proposes a brand new dual mechanical port motor

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