This whole rotating assembly is the r otor. The can (or casing) hold a circular arrangement of magnets (electrically called poles) and is supported on one or both ends by endcaps. Let's clear up some of the vocabulary and nomenclature immediately. I will assume some familiarity with basic electromagnetics concepts in order to explain the motor physics.īelow is an exploded parts diagram of a prototype motor that I am in the process of designing and building. The intention is not to design a motor that maintains above 95% efficiency across a thousand-RPM powerband, nor win the next electric flight competition, nor design a prime mover that will run at constant power for the next 10 years in an industrial process. The information is purposefully not academic in nature unless there is no way to avoid it. Many assumptions, shortcuts, and "R/C Hobby Industry Rules of Thumb and Hand Waves" will be used. This is intended as a basic primer on DC brushless hub motors.
#Motor winding video in urdu how to
The arrangement of this Instructable is designed for a read through first - because it relays theory and advice more than specific instructions on how to create one particular motor. Finally, I will briefly glean over ways to control your newfound source of motion. I will provide some thoughts and pointers about the mechanical construction of the motor itself and how to source major components. I will first exposit some of the details of brushless DC motor theory as applied to hub motors. Hence, I will attempt to show that a brushless DC permanent magnet hub motor is actually relatively easy to design and build for the hobbyist, resource access considerations aside. Until now, I have not had a single collective resource to point anyone towards, nor have I been confident enough to understand what I actually built to write about it for other hackers. The advent of my project RazEr, a stock Razor scooter with a custom built electric conversion, has raised many questions from amateur EV builder looking to construct their own brushless hub motors. They are also not as complex and mystical as one might think. Pure DC electric hub motors, in fact, were used in some of the first electric (and hybrid electric) cars. They're compact and modular, require no support of rotating axles from the parent vehicle, and can be designed around the vehicle to be propelled. That is, they're great for EV hacking and conversion. The book is suitable for fitters, engineers, apprentices, technicians, and students of mechanical or electrical engineering.In-wheel electric drive motors represent an effective method of providing propulsion to vehicles which otherwise were not designed to have driven wheels. The book points out that a coil cannot be wound anyhow as the coil voltage governs the technique of winding that is to be used. A motor-driven winding machine should have speed control, a lead-screw reverser, and a wire guide.
![motor winding video in urdu motor winding video in urdu](https://cdnp.c3dt.com/preview/8058413-com.moterrewinding.coursesubmersible.jpg)
Varnishing and finishing forms part of the whole operation this adds insulation between turns, secures the whole winding against the action of centrifugal force, and also seals the part from moisture or dust. The book notes the importance of the varieties of wind and the various techniques adopted to obtain the optimum wind for any particular type of armature.
![motor winding video in urdu motor winding video in urdu](https://img.youtube.com/vi/UCHu6HCDuY8/0.jpg)
The technician should start by determining the following: (1) coil connection (2) number of turns per coil (3) number of coils per pole (4) the gauge of the wire and (5) the space occupied by the winding. The book describes in detail the rewinding process. Rewinding Small Motors describes the technique of rewinding various types of motors, such as split phase, capacitor-start, repulsion, repulsion-induction, repulsion-start, shaded pole, three-phase induction, universal, and d.c.