Permanent-magnetic synchronous motor stator

Abstract

The invention discloses a permanent-magnetic synchronous motor stator. The permanent-magnetic synchronous motor stator comprises a stator core and coils; each pole of the stator adopts concentrated windings to form a single coil, the coil of each pole is a standard coil, and N coils form the motor stator; the N coils are connected in series or in parallel to form a three-phase winding with different voltage levels; and the motor stator can correspond to the axial length of a motor rotor by increasing the lamination thickness of silicon steel sheets so as to form different motor power series. The permanent-magnetic synchronous motor stator has the advantages that: the motor stator consists of stators of N standard units, and the standard stators save more materials and are very convenient for scale production so as to remarkably improve the labor productivity and reduce the manufacturing cost; and the motor stator has very predominant performance, and can be widely applied to various electronic devices such as electric automobiles, mine electric locomotives, small wind power generation devices and the like which need low speed and large torque.

Description

technical field [0001] The invention relates to the technical field of a novel motor, in particular to a stator of a permanent magnet synchronous motor with a combined stator structure composed of standard stator coil units. It can be widely used in electric vehicles, mine electric locomotives, small wind power generation equipment and other electronic equipment that require low speed and high torque. Background technique [0002] The stator of the permanent magnet motor generally adopts the traditional stator core structure. The stator punching sheet and the iron core are made by one-time punching of a composite progressive die. The stator core itself is suitable for large-scale production and has low manufacturing cost. The disadvantages are: Since the stator generally adopts short-distance distributed windings, it is not convenient to use automatic winding machines for large-scale production, which significantly increases the manufacturing cost of the stator windings, esp...

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Problems solved by technology

[0002] The stator of the permanent magnet motor generally adopts the traditional stator core structure. The stator punching sheet and the iron core are made by one-time punching of a composite progressive die. The stator core itself is suitable for large-scale production and has low manufacturing cost. The disadvantages are: Since the stator generally adopts short-distance distributed windings, it is not convenient to use automatic winding machines for large-scale production, which significantly increases the manufacturing cost of the stator windings, especially if the insulation does not meet the requirements somewhere in the stator windings, or other problems occur. problem, it will cause all stator windings to be completely rewound, which will cause a huge waste of materials and labor

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