What is the relationship between stator slot spacing and the winding machine? What are the requirements for slot spacing?

The relationship between stator slot distance and winding machine mainly manifests in winding accuracy, speed, equipment configuration, and adaptability to winding methods. The slot distance needs to be determined comprehensively based on wire diameter, winding method, stator shape, etc. What are the specific requirements? Vacuz will briefly introduce them below!

I. Relationship between Stator Slot Distance and Winding Machine

1. Winding Accuracy and Speed

The smaller the slot distance, the greater the winding difficulty, and the higher the precision requirements for the winding machine. If the slot distance is too small, the wire is prone to scraping against the slot edge, leading to wire damage, breakage, or uneven wire arrangement. It is necessary to reduce the winding speed and improve equipment accuracy (e.g., error ≤ ±0.01mm).

When the slot distance is moderate, the winding machine can maintain a higher speed while ensuring smooth wire entry into the slot, improving production efficiency.

2. Equipment Configuration Requirements

A small slot distance requires a high-precision winding machine equipped with a precision wire arrangement device, tension control system, and anti-scratch wire nozzles to avoid friction between the wire and the slot.

When the slot distance is large, the equipment configuration requirements are relatively reduced, but it is necessary to ensure that the wire completely fills the slot to avoid loosening or skipping.

3. Adaptability of Winding Method

Flying Fork Winding Machine: Suitable for stators with outward-facing slots. The slot distance needs to be large enough to accommodate the flying fork’s movement and prevent wire tangling or breakage.

Pin Winding Machine: Suitable for stators with inward-facing slots. The slot distance needs to match the pin diameter to ensure the pin can smoothly pass through the slot for wire routing.

II. Specific Requirements for Stator Slot Distance

1. Wire Diameter Matching Principle

The slot distance needs to be adjusted according to the wire diameter: the thicker the wire, the larger the slot distance should be. For example, when the wire diameter is ≤0.8mm, the slot distance can be controlled at 2.5-3mm; when the wire diameter is >0.8mm, the slot distance needs to be appropriately increased to avoid scratching.

When winding multiple wires in parallel, the slot distance needs to be further increased to accommodate multiple strands and prevent tangling.

2. Stator Shape and Structure

Slanted Slot Stator: The slot distance needs to be designed in conjunction with the slant angle to ensure the wire can be smoothly arranged along the slant direction, avoiding wire damage due to angle deviation.

Stator Height (Stack Thickness): The higher the stack thickness, the greater the wire sway during winding, requiring a larger slot distance to reduce the risk of wire scratching.

3. Winding Process Requirements

High-Speed ​​Winding: For high-speed winding (such as multi-station external winding machines), the slot distance needs to be large enough to reduce friction between the wire and the slot, avoiding wire breakage due to excessive speed.

High-Turned-Turned Coils: When the number of turns is large, it is necessary to ensure that the slot distance can accommodate all the wire, avoiding coils that are too tight or loose.

III. Adjustment Suggestions in Practical Applications

1. Testing and Optimization

Before formal production, test the compatibility between the winding machine and the stator through no-load operation, observing whether the wire enters the slot smoothly and whether the wire arrangement is uniform.

Adjust the slot distance, winding speed, and tension parameters based on the test results, gradually optimizing to a suitable state. 2. Equipment Selection Reference

Small stator (outer diameter 10-70mm): Multi-station equipment (e.g., four-station) is recommended; the slot distance must meet the wire diameter requirements.

Large stator (outer diameter > 120mm): Single-station equipment is required; the slot distance needs to be larger to accommodate wire arrangement requirements.

Thick wire (>0.8mm) or multi-wire winding: Speed ​​reduction and increased tension are required, while ensuring sufficient slot distance.

What is the relationship between stator slot distance and winding machine? What are the requirements for slot distance? Vacuz has provided a simple explanation above; we hope this information is helpful!