What is the knowledge related to distributed windings of DC motors? This is the related issue that we are going to talk about for you in this issue. Please see the specific explanation below:
(1) Concentric windings Concentric windings are several rectangular coils of different sizes in the same coil group, which are embedded and arranged one by one according to the same center position to form a back shape. Concentric windings are divided into single layer and multilayer. Generally, the stator windings of single-phase motors and some low-power three-phase asynchronous motors adopt this type.
(2) Stacked windings Stacked windings are all coils of exactly the same shape and size (except for single and double turns), each slot is embedded with one coil side, and the outer end of the slot is stacked one by one and evenly distributed. Stacked windings are divided into single-layer stacking and double-layer stacking. Only one coil side is embedded in each slot is a single-layer stacked winding, or called a single-stack winding; each slot with two coil edges that belong to different coil groups (upper and lower layers) is a double-layer stacked winding, or called a double Stacked windings. Due to the different changes in the embedded wiring method, stacked windings can be divided into single and double-turn cross wiring arrangements and single and double-layer mixed wiring arrangements. In addition, the embedded shape from the winding end is called chain winding and basket winding. In fact, they are all stacked windings. Generally, the stator windings of three-phase asynchronous motors use stacked windings.
The distributed winding of the motor stator is basically the distributed winding of the DC motor. With the improvement of the functional requirements of the DC motor, the distributed winding method of the motor stator also needs to be selected appropriately to enhance the efficiency.
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