Slotless electric motor and coil unit thereof
2017
Disclosed are a slotless electric motor and a coil unit thereof. In the coil unit of the slotless electric motor, a first coil and a second coil overlap each other while a first end turn of the first coil and a first end turn of the second coil face each other and a first coil-side of the second coil is inserted between two coil-sides of the first coil, wherein each of the first coil and the second coil comprises two coil-sides parallel to each other, ends of the two coil-sides are connected through a first end turn and a second end turn having a curved shape, respectively, and the first end turn is bent to make a pre-configured angle with respect to the two coil-sides.
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