Stacked stator core and method of manufacturing thereof, and rotary motor and method of manufacturing thereof

A stacked stator core, comprising:

• a plurality of stator cores, each of which is made up of a prescribed number of stacked sheet magnetic materials;
• a plurality of yoke members forming each stator core;
• a bendable bent portion provided between said yoke members;
• and
• an interconnecting portion for interconnecting said plurality of stator cores by connecting the upper end of one stator core to the lower end of the other stator core with a difference in level provided between said plurality of stator cores.

A rotary motor, comprising:

• a stator core having a plurality of yoke members, each yoke member making up of a prescribed number of stacked sheet magnetic materials;
• a bendable bent portion provided between said yoke members;
• a stepped yoke member whose one part of said yoke members is shifted from the other yoke members in the stacking direction of said sheet magnetic materials relative to another yoke member;
• a stator formed by bending said stator core in a ring and connected both ends of said stator core;
• and
• a base equipped with said stator.

A stacked stator core, comprising;

• a first core member formed by stacking a prescribed number of magnetic materials and made up of a plurality of yoke members connected to one another through a bendable bent portion;
• a second core member formed by stacking the prescribed number of magnetic materials and made up of a yoke member arranged in such a manner that one end of each magnetic material of said second core member is successively connected to the other end of said first core member through a bendable bent portion from the next magnetic material of the other end of said first core member by shifting entirely said second core member downwards;
• a third core member formed by stacking the prescribed number of magnetic materials, each of which is made up of the same number of yoke members as said first core member connected through the bendable bent portion, and one end of the magnetic material of said third core member is connected to the other end of said core member through a bendable bent portion by shifting entirely said third core member downwards;
• and
• a fourth core member formed by stacking the prescribed number of magnetic materials and made up of a yoke member arranged in such a manner that one end of each magnetic material of said fourth core member is successively connected to the next stage of the other end of said third core member through a bendable bent portion from the next magnetic material of the other end of said third core member by shifting entirely said fourth core member downwards, with left the same number of stages of one end of said fourth core member unconnected as the prescribed number of sages;
• wherein the first, the second, the third and the fourth core members are continuously arranged in a shape of a spiral;
• wherein the third core is stacked on the first core and the forth core is stacked on the second core.

A rotary motor, comprising;

• a stator core having a plurality of yoke members made up of a prescribed number of stacked sheet magnetic materials, a bendable bent portion provided between said yoke members, some part of said yoke members are respectively shifted from adjacent yoke members in the stacking direction of said sheet magnetic materials;
• a stator formed by bending said stator core in a ring and connected both ends of said stator core;
• and
• a base equipped with said stator.

A stacked stator core comprising;

• (N) yokes arranged spirally, each yoke having L magnetic materials and connected continuously to each other through bent portions,
• wherein the p+n-th yoke is shifted from the p-th yoke L magnetic materials in the stacking direction of said sheet magnetic materials,
• wherein the p+n-th yoke is stacked on the p-th yoke,
• wherein N is the total number of yokes in the stacked stator core, L is the number of layers of magnetic materials, p is an integer greater than 0 and n is the number of sides of the stacked stator core.