Motor coil board and motor

Abstract

To provide a coil substrate with which a motor with stable performance can be obtained, a coil substrate for a motor that is formed by using the coil substrate, and a motor that is formed by using the coil substrate for a motor.SOLUTION: A coil substrate of an embodiment has a flexible substrate that has a first surface and a second surface on the opposite side of the first surface; and a coil that is formed by coil-shaped wiring provided on the first surface and coil-shaped wiring provided on the second surface. The coil substrate can be formed in a substantially cylindrical shape by being wound in a circumferential direction centered on a shaft extending in an orthogonal direction orthogonal to the longitudinal direction, with a reference side at one end in the longitudinal direction of the flexible substrate as a starting point. The wiring has an orthogonal part extending along the orthogonal direction. The orthogonal part includes a first orthogonal part on the first surface and a second orthogonal part on the second surface. At least one of the first orthogonal part and the second orthogonal part is formed with at least one slit along the orthogonal direction.SELECTED DRAWING: Figure 5

Claims

1. A flexible substrate having a first surface and a second surface opposite to the first surface, A motor coil substrate is formed by winding a coil substrate, which has a coil-shaped wiring provided on the first surface and a coil formed by the coil-shaped wiring provided on the second surface, into a substantially cylindrical shape, The first surface is positioned on the inner circumference side, and the second surface is positioned on the outer circumference side. The coil substrate can be formed into a substantially cylindrical shape by winding it circumferentially around an axis extending in a direction perpendicular to the longitudinal direction, starting from a reference edge on one end of the flexible substrate in the longitudinal direction. The wiring has an orthogonal portion extending along the orthogonal direction, and the orthogonal portion includes a first orthogonal portion on the first plane and a second orthogonal portion on the second plane. In the cross-section of the first orthogonal portion, the flexible substrate, and the first orthogonal portion, the first orthogonal portion and the second orthogonal portion overlap. Both the first orthogonal portion and the second orthogonal portion have at least one slit formed along the orthogonal direction, The motor coil substrate is formed by overlapping the slits in the first orthogonal section and the slits in the second orthogonal section via the flexible substrate.

2. A motor coil substrate according to claim 1, wherein the motor coil substrate is a polygonal cylindrical shape with a cross-sectional shape of 48 or more sides.

3. A motor formed by arranging the motor coil substrate according to claim 1 inside a cylindrical yoke, and arranging a rotating shaft and magnets inside the motor coil substrate.

4. A motor coil substrate according to claim 1, wherein the slit in the first orthogonal portion and the slit in the second orthogonal portion are of the same width.

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