Three-phase AC (alternating current) PMSM (permanent magnet synchronous motor) for vehicle
A permanent magnet synchronous motor, three-phase AC technology, used in synchronous machine parts, motors, electromechanical devices, etc., can solve the problem of iron cores that cannot be shortened, and achieve reduced size and weight, light weight, and improved machine base. the effect of strength
Inactive Publication Date: 2011-11-16
XIANGYANG YUQING TRANSMISSION TECH
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Problems solved by technology
The iron core cannot be shortened
Method used
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[0008] Such as figure 1 shown. Shaft 1, bearing outer cover, front end cover 3, rear end cover 12, bearing 2, bearing inner cover 11, rotor, stator core 8 and stator coil 5 are the same as those in the existing three-phase AC permanent magnet synchronous motor, Only base 6 is different. The housing of the machine base 6 is made of aluminum alloy, mainly to reduce the volume of the motor and reduce the weight of the motor. This point is also the same as that of the prior art. Constructed of stainless steel coils. The stainless steel coil is pre-embedded and cast around the inner cavity of the 6 walls of the machine base, and the two ends are bent and protruded to form inlet and outlet joints. A flange connected with a certain part of the automobile is provided behind the rear end cover 12 . The support 6 is connected with the front end cover 3 and the rear end cover 12 with bolts and nuts 4 . The rotor core 9 is a solid rotor, on which permanent magnet slots and empty slot...
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The invention provides a three-phase AC (alternating current) PMSM (permanent magnet synchronous motor) for a vehicle, belonging to the technical field of ACPMSMs. The ACPMSM is mainly used for solving the problems that the intensity of an aluminum alloy chassis is low and the water seepage exists due to the defect of an internal organizational structure in an existing ACPMSM. The ACPMSM provided by the invention is mainly characterized by comprising a spindle, an external bearing cover, an internal bearing cover, an aluminum alloy chassis, a front end cover, a bearing, a back end cover, a stator core, a stator coil and a rotor, wherein the rotor is a solid rotor and provided with a permanent magnet slot and an empty slot symmetrically in accordance with the number of motor poles; a permanent magnet is externally provided with a slot wedge made of a nonmagnetic material; baffles made of nonmagnetic materials are arranged at two ends of the rotor; the spacer bush of a rotor magnetic pole is arranged between the rotor and the spindle; and a cooling channel is formed by a coil pipe in the aluminum alloy chassis wall. The ACPMSM provided by the invention can strength the intensity of the cast aluminum chassis and avoid the water seepage due to the structural defect of the cast aluminum chassis, and is mainly applied to a water-cooled PMSM for an electric vehicle.
Description
technical field [0001] The invention belongs to the technical field of AC permanent magnet synchronous motors. It specifically relates to a three-phase AC permanent magnet synchronous water-cooled vehicle motor that can be used not only as a motor but also as a generator, and can effectively prevent water seepage. Background technique [0002] At present, most of the permanent magnet synchronous motors used in vehicles are of air-cooled structure, and their traditional forms are large in size and heavy in weight, while motors for vehicles need to be small in size (especially short in axial dimension), light in weight and high in efficiency. Motors for cars. The aluminum alloy frame can reduce the weight of the motor, but the heat dissipation effect of the air-cooled structure on the car is not ideal. The thermal efficiency of the motor should also be considered too much in the design. The iron core cannot be shortened either. The water cooling method of the motor frame i...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H02K21/02H02K5/20H02K5/04
CPCY02T10/641Y02T10/64
Inventor 檀银身高幼民陈建平潘明安张志斌张启
Owner XIANGYANG YUQING TRANSMISSION TECH