The invention relates to a direct-current excitation asymmetric brush motor. The motor may include a motor shaft; a commutator with a number of lamellae arranged in the circumferential direction; an armature with a number of armature teeth and armature grooves, where anchor windings are arranged in the armature grooves to form coils; at least one brush pair for supplying the coils with power, including two brushes contacting the lamellae; and a number n of permanent magnets in the stator to form a magnetic field, where n is a multiple of 2 and n>2, and where the number of armature teeth is unequal to a multiple of n. A position angle between the brushes of a brush pair is equal to or less than 90 degrees and unequal to a multiple of the position angle between two directly consecutive lamellae. The lamination width (x), the slot width (y) and the brush width (z) are selected such that only the first and second coil states occur when the rotor is rotated a full turn, and there is a temporal division ratio (T) of at least 9: 1.

    本发明涉及一种直流励磁的不对称有刷电机,其具有:电机轴;换向器,其具有沿环周方向设置的叠片;电枢,其具有电枢齿和电枢槽,在电枢槽中设有用于构成线圈的电枢绕组;至少一个电刷对,其对用于为线圈供应电流并且具有两个贴靠在叠片上的电刷;和在转子中的一定数量n的永磁体,所述永磁体用于形成磁场,n是2的多倍且大于2,电枢齿的数量不等于永磁体的数量n的多倍,并且在电刷对的两个电刷之间的位置角小于等于90°并且不等于在两个沿环周方向直接彼此相继的叠片之间的位置角的多倍,叠片宽度(x)、缝隙宽度(y)和电刷宽度(z)选择为,使得在转子转一整圈时仅出现第一和第二线圈状态,并且存在至少9:1的时间上的划分比(T)。


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    Title :

    NOISE REDUCTION FOR DIRECT CURRENT EXCITED BRUSHED ASYMMETRIC MOTOR


    Additional title:

    用于直流励磁的有刷的不对称电机的降噪


    Contributors:

    Publication date :

    2021-02-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES / B60J WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES , Fenster, Windschutzscheiben und bewegbare Dächer, Türen oder Ähnliches für Fahrzeuge




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