Segmented Stator Winding Characteristics

Unlike traditional windings, segmented stator winding allows for precise control over electromagnetic properties, directly impacting motor performance and durability. This blog post unravels the intricacies of segmented stator winding, delving into the significance and advantages that characterize this approach.

Segmented Stator Winding

Stator Coil Winding

Segmented stator winding refers to a design and manufacturing approach for electric motor stators, where the stator is divided into multiple segments, each containing a portion of the winding. This method differs from traditional stator winding techniques, where windings are inserted into a continuous, unsegmented stator core.

Importance of Winding Characteristics

In a method of making a stator assembly, a plurality of stator segments are positioned so each is received in one of a plurality of pockets in a containment structure.

Coils are wound around each stator segment while the containment structure prevents the stator segment from having direct physical contact with another stator segment.

The containment structure is reconfigured to bring the wound stator segments into contact with one another, thereby forming a closed magnetic circuit.

Winding characteristics encompass the arrangement, distribution, and precision of windings within the stator.

The significance lies in their direct impact on energy efficiency, operational effectiveness, and the longevity of the motor.

Consistent winding characteristics ensure a smooth and effective operation across various applications, minimizing energy losses and maximizing the utilization of electrical energy.

Brushless DC Motors

Key Features of Segmented Stator Lamination Core Winding

Modular Design

The stator is divided into several segments, or modules, allowing for easier assembly and manufacturing. This modularity facilitates the use of automated processes for winding and assembly, reducing labor costs and increasing precision.

Improved Cooling

Segmented designs offer superior cooling capabilities. The gaps between segments allow for better air flow and heat dissipation, reducing the risk of overheating and enhancing the motor’s thermal management.

This leads to a longer lifespan and higher efficiency, particularly in high-load applications.

High Precision and Customization

With segmented lamination core winding, there’s an increased ability to customize the motor for specific applications without significant changes to the overall manufacturing process.

Enhanced Electrical Performance

The design allows for a reduction in electromagnetic losses, improving the motor’s electrical efficiency. Segmented stators can be optimized to reduce cogging torque and improve smoothness of operation, which is particularly beneficial in applications requiring precise motion control.

Optimized Use of Materials

Segmented stator lamination core winding reduces waste during manufacturing. The precise placement of windings in each segment can also lead to a reduction in the amount of copper or other materials needed.

Enhancements in Winding Techniques

Winding techniques within segmented stators go beyond conventional methods that achieve a consistent winding pattern while emphasizing the crucial concept of slot full rate.

The slot full rate, representing the ratio of the actual winding area to the total slot area, becomes a key parameter in determining the efficiency and effectiveness of the winding process.

By focusing on achieving a balanced slot full rate, engineers ensure that each slot’s available space effectively utilized, minimizing energy losses and maximizing motor efficiency.

high efficiency motor manufacturing

Motorneo Segmented Stator Coil Winding Capabilities

Motorneo produces electrical laminations and lamination segments ranging from 20 mm to 1250 mm in diameter.

Having multiple 25T-300T punching machines to mass production motor lamination stacks.

For lamination prototyping, we offer laser cutting and wire cutting(low-speed, medium-speed, and high-speed) to rapidly cut electrical steel lamination.

Segmented stator laminations use 0.1mm – 1mm silicon steel and 25μm amorphous materials.


In conclusion, segmented stator winding emerges as a new approach in electric motor design, intertwining the significance of winding characteristics with the key features of segmented stator lamination core winding. Through enhancements in winding techniques, this method not only optimizes motor performance but also introduces a new era of efficiency, thermal management, and customization.


What advantages does segmented stator winding offer in electric motor design?

Segmented stator winding offers distinct advantages in electric motor design. By dividing the stator into segments, this technique allows for precise control over magnetic flux distribution.

This optimized flux control results in heightened motor efficiency, reduced energy losses, and improved operational effectiveness. The strategic placement of windings contributes to a balanced distribution, minimizing wastage of electrical energy.

This approach not only enhances the overall performance of electric motors but also allows for tailored designs that meet specific application requirements. It making segmented stator winding a key contributor to advanced and efficient motor designs.

Can segmented stator winding be applied to different types of electric motors, such as induction motors or permanent magnet motors?

Yes, segmented stator winding is suitable for various types of electric motors, including both ac motors, bldc motors, induction motors and permanent magnet motors. 

What are the application areas of segmented stator winding?

Segmented stator windings find applications in various industries such as the automotive, industrial, and aerospace sectors. They are particularly beneficial in high-speed and high-power applications where the stator can be segmented to enhance cooling efficiency.

Segmented stator designs can help reduce iron losses in permanent magnet synchronous machines used for traction applications. These windings can also be used in concentrated winding machines and in setups where the stator is divided into multiple individual segments based on the design requirements.

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