STATOR CORE OF ROTOR

• US 20130076200A1
• Filed: 05/30/2012
• Published: 03/28/2013
• Est. Priority Date: 09/27/2011
• Status: Active Grant

• Current Assignee: LG Innotek Company Limited (LG Corporation)
• Original Assignee: LG Innotek Company Limited (LG Corporation)
• Inventors: JO, JUNGWOO
• Granted Patent: US 8,970,086 B2
• Time in Patent Office: Days
• US Class Current: 310/216.135
• CPC Class Codes: H02K 1/148 Sectional cores H02K1/141 takes precedence
• CPC Class Codes: H02K 15/022 with salient poles or claw-shaped poles

Abstract

A stator core for a motor is disclosed, the stator core including at least one cylindrical stator core body formed in one body by using a metallic mold so that a plurality of teeth is protruded to a same direction each at a predetermined gap, and both distal ends of the stator core body are coupled through a bending process for each horizontal predetermined section about a center of the teeth, and a fixing unit provided at both distal ends of stator core body to fix the stator core body in a cylindrical shape.

Claims

1. A stator core for a motor comprising:

at least one cylindrical stator core body formed in one body by using a metallic mold so that each of a plurality of teeth is protruded to a same direction each at a predetermined gap, and both distal ends of the stator core body are coupled through a bending process for each horizontal predetermined section about a center of the teeth; and

a fixing unit provided at both distal ends of stator core body to fix the stator core body in a cylindrical shape.

2. The stator core of claim 1, wherein the fixing unit includes a fixing lug protrusively formed at a distal end of one side of the stator core body, and a concave fixing groove formed at a distal end of the other side of the stator core body in a complementary shape with the fixing lug.

3. The stator core of claim 1, wherein the fixing unit includes a pin groove formed at both distal ends of the stator core body, and a fixing pin press-fitted into the pin groove.

4. The stator core of claim 3, wherein the pin groove includes at least two or more hitching sills, and an opening opened in association with the hitching sills to inhibit the fixing pin from being disengaged from the pin groove to a direction perpendicular to a direction of an inserted coupling of the fixing pin.

5. The stator core of claim 3, wherein the pin groove is provided with a ‘

T’

shape, and the fixing pin inserted into a pair of pin grooves is provided with a ‘

H’

shape.

6. The stator core of claim 5, wherein each corner of the fixing pin and the pin groove is rounded.

7. The stator core of claim 3, wherein the fixing pin is provided in a same thickness as that of the stator core body.

8. The stator core of claim 1, wherein the stator core body is provided with a hook unit of a complementary shape about a lug adjacent to the tooth for keeping a cylindrical shape during the bending process.

9. The stator core of claim 8, wherein an edge portion of the hook unit in an interlocking complementary structure is rounded.

10. The stator core of claim 8, wherein a gap groove is formed at a position adjacent to the hook unit for reducing interference during the bending process of the stator core body.