Laminated core for a motor

• US 5,477,096 A
• Filed: 12/15/1993
• Issued: 12/19/1995
• Est. Priority Date: 12/16/1992
• Status: Expired due to Fees

• Current Assignee: Kabushiki Kaisha Sankyo Seiki Seisakusho
• Original Assignee: Kabushiki Kaisha Sankyo Seiki Seisakusho
• Inventors: Sakashita, Hiroshi, Arasaki, Eiji
• Primary Examiner(s): SKUDY, ROBERT
• Application Number:
  US08/166,876
• Time in Patent Office: 734 Days
• Field of Search: 310/216, 310/217, 310/269, 310/45, 310/43, 310/254, 310/261, 336/219, 336/216
• US Class Current: 310/216.016
• CPC Class Codes: H02K 1/06 characterised by the shape, form or construction

Abstract

A laminated core for a motor includes a plurality of core members made of magnetic material and which are laminated to form laminated core members; insulating layers formed on the surfaces of the laminated core members, and a wire wound on the insulating layer of the laminated core members, wherein the insulating layers are respectively formed on the core members located on the upper and lower sides of the laminated core in the laminate direction.

Claims

1. A laminated core for a motor, comprising:

a plurality of core members, made of magnetic material, which are laminated in a laminate direction to form laminated core members, said laminated core members including outer core members located at opposite end sides in the laminate direction and inner core members disposed therebetween; and

insulating layers formed on surfaces of the laminated core members,

wherein the insulating layers are respectively formed on the outer core members located on the opposite end sides of the laminated core in the laminate direction but are not formed on the inner core members, and

further wherein each of the outer core members has a width that is larger than a width of the inner core members.

2. The laminated core as claimed in claim 1, further comprising:

a wire wound on the insulating layers of the outer core members

3. The laminate core for a motor as claimed in claim 1, wherein the laminated core members include an intermediate core member at a middle portion of the laminated core members and the intermediate core member is covered with an insulating layer.

4. The laminate core for a motor as claimed in claim 1, wherein punched out crooked faces of the outer core members located on opposite end sides of the laminated core are bent along the laminated core members.

5. A laminated core for a motor, comprising:

a plurality of core members punched out to have a preset pattern, the core members being laminated to form a laminated core member including outer core members located at opposite end sides and inner core members disposed therebetween; and

insulating layers formed on surfaces of the laminated core member,

wherein the insulating layers are formed on the outer core members located on the opposite end sides of the laminated core member but are not formed on the inner core members, and punched out crooked faces of the outer core members located on the opposite end sides of the laminated core member are confronted with each other, and

further wherein each of the outer core members has a width that is larger than a width of the inner core members.

6. The laminated core as claimed in claim 5, further comprising:

a wire wound on the insulating layers of the outer core members.

7. The laminate core for a motor as claimed in claim 5, wherein the laminated core member includes an intermediate core member at a middle portion of the laminated core member and the intermediate core member is covered with an insulating layer.

8. The laminate core for a motor as claimed in claim 5, wherein the punched out crooked faces of the outer core members located on opposite end sides of the laminated core member are bent along the laminated core member.