Stator and bearing fixing structure of a motor

• US 20030156366A1
• Filed: 02/15/2002
• Published: 08/21/2003
• Est. Priority Date: 02/15/2002
• Status: Active Grant

• Current Assignee: Sunonwealth Electric Machine, Ind. Co., Ltd.
• Original Assignee: Sunonwealth Electric Machine, Ind. Co., Ltd.
• Inventors: Horng, Alex, Horng, Yin-Rong
• Granted Patent: US 6,654,213 B2
• Time in Patent Office: Days
• US Class Current: 361/23
• CPC Class Codes: H02K 1/187 to inner stators
• CPC Class Codes: H02K 5/1675 radially supporting the rotary shaft at only one end of the rotor H02K5/1677 takes precedence

Abstract

A stator and bearing fixing structure of a motor includes a housing provided with a shaft seat having a bottom provided with a bottom stop member and having an outer wall provided with multiple snap members. An insulating seat consisting of an upper insulating plate and a lower insulating plate may isolate a magnetically conductive assembly and may be wound with metallic coils, thereby forming a stator which is mounted on the outer wall of the shaft seat. The upper insulating plate is provided with an annular lip, and the lower insulating plate is provided with multiple protruding snap members that may be snapped with the snap members of the shaft seat. A bearing is placed in the shaft seat and has a first end stopped by the bottom stop member, and a second end pressed by the annular lip.

Claims

1. A stator and bearing fixing structure of a motor, comprising:

a housing, provided with a shaft seat for receiving at least one bearing, the shaft seat having a bottom provided with a bottom stop member, the shaft seat having an outer wall provided with multiple snap members;

a stator, including an insulating seat for isolating a magnetically conductive assembly and wound with metallic coils, the insulating seat provided with multiple snap members that may be snapped and locked with the snap members of the outer wall of the shaft seat.

2. The stator and bearing fixing structure of a motor as claimed in claim 1, wherein the insulating seat consists of an upper insulating plate, and a lower insulating plate.

3. The stator and bearing fixing structure of a motor as claimed in claim 1, wherein the bottom stop member is integrally formed by the housing, and is formed with a protruding ring or closure bottom plate.

4. The stator and bearing fixing structure of a motor as claimed in claim 1, wherein the bottom stop member includes a plate fixed on the inner wall of the shaft seat.

5. The stator and bearing fixing structure of a motor as claimed in claim 1, wherein the shaft seat is formed with multiple grooves in which the snap members of the shaft seat are formed in, and the snap members of the insulating seat may enter the grooves.

6. A stator and bearing fixing structure of a motor, comprising:

a housing, provided with a shaft seat, the shaft seat having a bottom provided with a bottom stop member, the shaft seat having an outer wall provided with multiple snap members;

a stator, including an insulating seat for isolating a magnetically conductive assembly and wound with metallic coils, the insulating seat having an upper portion provided with an annular lip protruded toward a center, and a lower portion provided with multiple protruding snap members that may be snapped and locked with the snap members of the outer wall of the shaft seat; and

a bearing, placed in the shaft seat of the housing, and having a first end stopped by the bottom stop member of the shaft seat without detachment, and a second end pressed and positioned by the annular lip of the insulating seat.

7. The stator and bearing fixing structure of a motor as claimed in claim 6, wherein the insulating seat consists of an upper insulating plate, and a lower insulating plate.

8. The stator and bearing fixing structure of a motor as claimed in claim 7, wherein the upper insulating plate is provided with the annular lip protruded toward a center.

9. The stator and bearing fixing structure of a motor as claimed in claim 7, wherein the lower insulating plate is provided with the multiple protruding snap members.