08/07/2024
What is the difference between needle type inner winding and flying fork outer winding of brushless motor stator?
Many friends often ask how to wind the stator of a brushless motor? In fact, besides manual work, various types of winding equipment are commonly used. Generally speaking, they can be divided into two categories: one is the flying fork winding machine, and the other is the needle type inner winding machine. Both are commonly used winding equipment at present. So, what are the differences and differences between needle type inner winding and flying fork outer winding? Let me briefly introduce to you below!
1. Different machine configurations: For ordinary equipment, the internal winding requirements are generally higher, and the configuration will also be higher. For flying fork winding machines, if the requirements are not high, stepper motors or servo motors can be configured according to the requirements, while internal winding equipment is mostly equipped with servo motors and controllers.
2. Different winding methods: The flying fork winding mainly adopts the flying fork strip wire method. Through high-speed rotation, under the interaction between the mold head, mold housing, protective plate, stator rod, and stator frame, the enameled wire is wound into each slot of the stator; The needle type inner winding mainly adopts the needle rod and wire nozzle with wire method. By moving up and down and forward and backward, the mold and skeleton move left and right, servo control, and mutual cooperation, the enameled wire is wound into the stator slot.
3. Different speeds: The winding speed of a regular flying fork can reach 3000RPM, and some can even reach 5000RPM; Due to the use of screw or belt transmission, needle type internal winding can achieve a high-speed winding speed of up to 1000RPM. Of course, the speed is also limited by the product. The thicker the wire diameter, the more strands are wound together, and the more precise the wire arrangement, the slower the speed will be.
4. Different product ranges: Flyfork winding machines are mostly suitable for stator products with outward grooves, such as cooling fans, aircraft models, fascia guns, electric vehicles, and other motor stator products; Needle type inner winding machines are mostly suitable for stator products with inward grooves, such as electric tools, vacuum cleaners, small water pumps, hair dryers, electric toothbrushes, and other motor stator products. In fact, external winding products can also be made using internal winding equipment, but in terms of economic benefits, it is not cost-effective. It is a bit overkill, and knowledgeable friends should know, except for some special products.
What is the difference between needle type inner winding and flying fork outer winding of brushless motor stator? The above has been briefly explained. Choosing the appropriate winding equipment based on stator products can bring more benefits to enterprises. We hope it can help everyone!