US20100154200A1 - Assembly mechanism for motor stators and assembly method for the same - Google Patents

Assembly mechanism for motor stators and assembly method for the same Download PDF

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Publication number
US20100154200A1
US20100154200A1 US12/479,701 US47970109A US2010154200A1 US 20100154200 A1 US20100154200 A1 US 20100154200A1 US 47970109 A US47970109 A US 47970109A US 2010154200 A1 US2010154200 A1 US 2010154200A1
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United States
Prior art keywords
positioning plate
stator
inner stator
pressing
outer stator
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Granted
Application number
US12/479,701
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US7752741B1 (en
Inventor
An-Zheng Yang
Yi-Cheng Su
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Foxnum Technology Co Ltd
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Foxnum Technology Co Ltd
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Assigned to FOXNUM TECHNOLOGY CO., LTD. reassignment FOXNUM TECHNOLOGY CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SU, YI-CHENG, YANG, AN-ZHENG
Publication of US20100154200A1 publication Critical patent/US20100154200A1/en
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Publication of US7752741B1 publication Critical patent/US7752741B1/en
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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/15—Mounting arrangements for bearing-shields or end plates
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
    • H02K1/185—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures to outer stators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • H02K15/022—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies with salient poles or claw-shaped poles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49009—Dynamoelectric machine
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49718—Repairing
    • Y10T29/49732—Repairing by attaching repair preform, e.g., remaking, restoring, or patching
    • Y10T29/49734—Repairing by attaching repair preform, e.g., remaking, restoring, or patching and removing damaged material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/5313—Means to assemble electrical device
    • Y10T29/53143—Motor or generator
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/5313—Means to assemble electrical device
    • Y10T29/53143—Motor or generator
    • Y10T29/53148—Means to assemble commutator
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/5313—Means to assemble electrical device
    • Y10T29/53143—Motor or generator
    • Y10T29/53152—Means to position insulation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53796—Puller or pusher means, contained force multiplying operator
    • Y10T29/53896—Puller or pusher means, contained force multiplying operator having lever operator

Definitions

  • the present disclosure relates to an assembly mechanism for motor stators and an assembly method for the same.
  • the inner stator When an inner stator is assembled into an outer stator of a motor, the inner stator is apt to be deflected and damaged because the fit tolerance between the inner stator and the outer stator is quite little.
  • FIG. 1 is an exploded, isometric view of an embodiment of an assembly mechanism for stators of a motor, the assembly mechanism including a first positioning plate.
  • FIG. 2 is an inverted view of the first positioning plate of FIG. 1 .
  • FIG. 3 is a partially assembled, isometric view of FIG. 1 .
  • FIG. 4 is an assembled, isometric view of FIG. 1 .
  • an embodiment of an assembly mechanism 1 for pressing an inner stator 10 into a receiving space 21 of an outer stator 20 includes a pressing unit, a first positioning plate 60 , a second positioning plate 50 , and a third positioning plate 70 .
  • a wire bracket 80 is installed on a top of the inner stator 10 .
  • the pressing unit includes a supporting device 30 , and a pressing device 40 movable relatively to the supporting device 30 .
  • Two guiding posts 32 are formed on a top of the supporting device 30 .
  • a lower die 31 is formed on the top of the supporting device 30 , between the guiding posts 32 , matching a lower portion of the inner stator 10 .
  • the pressing device 40 defines two through holes 42 adjacent to opposite ends of the pressing device 40 .
  • the pressing device 40 includes an upper die 45 perpendicularly extending down from the pressing device 40 between the through holes 42 .
  • the first positioning plate 60 defines an opening 61 in a middle of the first positioning plate 60 .
  • the opening 61 has a dimension forming a clearance fit with a lower portion of the inner stator 10 .
  • a bottom surface of the first positioning plate 60 defines a recess 65 communicating with the opening 61 , matching an upper portion of the outer stator 20 .
  • the inner stator 10 forms a plurality of flanges 13 on a circumference of the inner stator 10 , along the axial direction, and an inner wall bounding the opening 61 of the first positioning plate 60 defines a plurality of guiding grooves 63 matching the plurality of flanges 13 .
  • the second positioning plate 50 defines an opening 51 in a middle of the second positioning plate 50 .
  • the opening 51 has a dimension forming a clearance fit with a lower portion of the outer stator 20 .
  • the third positioning plate 70 defines an opening 71 in a middle of the third positioning plate 70 .
  • the opening 71 has a dimension forming an interference fit with a lower portion of the upper die 45 .
  • the second positioning plate 50 is installed on the supporting device 30 using fasteners, such as screws or bolts.
  • the lower die 31 is received in the opening 51 of the second positioning plate 50 .
  • the third positioning plate 70 is fixed to the lower portion of the upper die 45 , by means of the interference fit between the upper die 45 and the opening 71 of the third positioning plate 70 .
  • the third positioning plate 70 can be fixed to the lower portion of the upper die 45 using screws or other fasteners.
  • the lower portion of the outer stator 20 is inserted into the opening 51 of the second positioning plate 50 , to allow the outer stator 20 to be immovably supported on the supporting device 30 .
  • the first positioning plate 60 is placed on the outer stator 20 , with the recess 65 engaging with the upper portion of the outer stator 20 .
  • the inner stator 10 is inserted into the opening 61 of the first positioning plate 60 .
  • the pressing unit is operated to move the pressing device 40 towards the supporting device 30 .
  • the third positioning plate 70 and the upper die 45 cooperatively press the wire bracket 80 on the inner stator 10 , to move the inner stator 10 into the receiving space 21 of the outer stator 20 , along the opening 61 of the first positioning plate 60 .
  • the guiding posts 32 on the supporting device 30 engage in the through holes 42 of the pressing device 40 , respectively, for guiding the pressing device 40 to move smoothly.
  • the inner stator 10 is entirely assembled in the outer stator 20 .
  • the assembled inner stator 10 and the outer stator 20 can be detached from the assembly mechanism 1 .
  • the opening 61 of the first positioning plate 60 guides the inner stator 10 into the outer stator 20 , to prevent the inner stator 10 from deflecting, and to prevent the inner stator 10 from damaging the outer stator 20 .
  • the second positioning plate 50 positions the outer stator 20 on the supporting device 30 , to prevent the outer stator 20 from moving.
  • the third positioning plate 70 is fixed to the lower portion of the upper die 45 , and presses the wire bracket 80 cooperating with the upper die 45 . A contact area between the pressing device 40 and the wire bracket 80 is increased, which can protect the wire bracket 80 from being damaged if the upper die 45 deviates.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

An assembly mechanism is provided to press an inner stator into a receiving space of an outer stator. The assembly mechanism includes a pressing unit and a first positioning plate. The pressing unit includes a supporting device to support the outer stator, and a pressing device movable relatively to the supporting device. The first positioning plate is attached to a top of the outer stator. The first positioning plate defines an opening forming a clearance fit with the inner stator. The opening receives the inner stator and guides the inner stator to move into the receiving space of the outer stator under a pressing action of the pressing device. An assembly method is also provided.

Description

    BACKGROUND
  • 1. Technical Field
  • The present disclosure relates to an assembly mechanism for motor stators and an assembly method for the same.
  • 2. Description of Related Art
  • When an inner stator is assembled into an outer stator of a motor, the inner stator is apt to be deflected and damaged because the fit tolerance between the inner stator and the outer stator is quite little.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is an exploded, isometric view of an embodiment of an assembly mechanism for stators of a motor, the assembly mechanism including a first positioning plate.
  • FIG. 2 is an inverted view of the first positioning plate of FIG. 1.
  • FIG. 3 is a partially assembled, isometric view of FIG. 1.
  • FIG. 4 is an assembled, isometric view of FIG. 1.
    •  DETAILED DESCRIPTION
  • Referring to FIG. 1, an embodiment of an assembly mechanism 1 for pressing an inner stator 10 into a receiving space 21 of an outer stator 20 includes a pressing unit, a first positioning plate 60, a second positioning plate 50, and a third positioning plate 70. A wire bracket 80 is installed on a top of the inner stator 10.
  • The pressing unit includes a supporting device 30, and a pressing device 40 movable relatively to the supporting device 30. Two guiding posts 32 are formed on a top of the supporting device 30. A lower die 31 is formed on the top of the supporting device 30, between the guiding posts 32, matching a lower portion of the inner stator 10. The pressing device 40 defines two through holes 42 adjacent to opposite ends of the pressing device 40. The pressing device 40 includes an upper die 45 perpendicularly extending down from the pressing device 40 between the through holes 42.
  • The first positioning plate 60 defines an opening 61 in a middle of the first positioning plate 60. The opening 61 has a dimension forming a clearance fit with a lower portion of the inner stator 10. Referring to FIG. 2, a bottom surface of the first positioning plate 60 defines a recess 65 communicating with the opening 61, matching an upper portion of the outer stator 20. In this embodiment, the inner stator 10 forms a plurality of flanges 13 on a circumference of the inner stator 10, along the axial direction, and an inner wall bounding the opening 61 of the first positioning plate 60 defines a plurality of guiding grooves 63 matching the plurality of flanges 13.
  • The second positioning plate 50 defines an opening 51 in a middle of the second positioning plate 50. The opening 51 has a dimension forming a clearance fit with a lower portion of the outer stator 20.
  • The third positioning plate 70 defines an opening 71 in a middle of the third positioning plate 70. The opening 71 has a dimension forming an interference fit with a lower portion of the upper die 45.
  • Referring to FIGS. 3 and 4, in assembly, the second positioning plate 50 is installed on the supporting device 30 using fasteners, such as screws or bolts. The lower die 31 is received in the opening 51 of the second positioning plate 50. The third positioning plate 70 is fixed to the lower portion of the upper die 45, by means of the interference fit between the upper die 45 and the opening 71 of the third positioning plate 70. In another embodiment, the third positioning plate 70 can be fixed to the lower portion of the upper die 45 using screws or other fasteners.
  • The lower portion of the outer stator 20 is inserted into the opening 51 of the second positioning plate 50, to allow the outer stator 20 to be immovably supported on the supporting device 30. The first positioning plate 60 is placed on the outer stator 20, with the recess 65 engaging with the upper portion of the outer stator 20. The inner stator 10 is inserted into the opening 61 of the first positioning plate 60. The pressing unit is operated to move the pressing device 40 towards the supporting device 30. The third positioning plate 70 and the upper die 45 cooperatively press the wire bracket 80 on the inner stator 10, to move the inner stator 10 into the receiving space 21 of the outer stator 20, along the opening 61 of the first positioning plate 60. The guiding posts 32 on the supporting device 30 engage in the through holes 42 of the pressing device 40, respectively, for guiding the pressing device 40 to move smoothly. When the lower portion of the inner stator 10 engages with the lower die 31 of the supporting device 30, the inner stator 10 is entirely assembled in the outer stator 20.
  • When the pressing unit is operated to move the pressing device 40 away from the supporting device 30, the assembled inner stator 10 and the outer stator 20 can be detached from the assembly mechanism 1.
  • In the assembly process, the opening 61 of the first positioning plate 60 guides the inner stator 10 into the outer stator 20, to prevent the inner stator 10 from deflecting, and to prevent the inner stator 10 from damaging the outer stator 20. The second positioning plate 50 positions the outer stator 20 on the supporting device 30, to prevent the outer stator 20 from moving. The third positioning plate 70 is fixed to the lower portion of the upper die 45, and presses the wire bracket 80 cooperating with the upper die 45. A contact area between the pressing device 40 and the wire bracket 80 is increased, which can protect the wire bracket 80 from being damaged if the upper die 45 deviates.
  • It is to be understood, however, that even though numerous characteristics and advantages of the present disclosure have been set forth in the foregoing description, together with details of the structure and function of the disclosure, the disclosure is illustrative only, and changes may be made in details, especially in matters of shape, size, and arrangement of parts within the principles of the disclosure to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.

Claims (12)

1. An assembly mechanism for pressing an inner stator into a receiving space of an outer stator, the assembly mechanism comprising:
a pressing unit comprising a supporting device to support the outer stator, and a pressing device movable relatively to the supporting device; and
a first positioning plate to be attached to a top of the outer stator, the first positioning plate defining a first opening forming a clearance fit with the inner stator, wherein the first opening is operable to receive the inner stator and guide the inner stator to move into the receiving space of the outer stator under a pressing action of the pressing device.
2. The assembly mechanism of claim 1, further comprising a second positioning plate, wherein the second positioning plate is fixed on the supporting device, and defines a second opening to receive a lower portion of the outer stator.
3. The assembly mechanism of claim 1, further comprising an upper die, and a third positioning plate, wherein a wire bracket is to be installed on a top of the inner stator, the upper die perpendicularly extends down from the pressing device, the third positioning plate is fixed to a lower portion of the upper die to press the wire bracket installed on the inner stator.
4. The assembly mechanism of claim 1, wherein a bottom surface of the first positioning plate defines a recess communicating with the first opening of the first positioning plate, the recess matches the outer stator for engaging with an upper portion of the outer stator.
5. The assembly mechanism of claim 1, wherein the inner stator forms a plurality of flanges along the axial direction of the inner stator, and an inner wall bounding the first opening of the first positioning plate defines a plurality of guiding grooves matching the plurality of flanges.
6. The assembly mechanism of claim 1, wherein the pressing device defines two through holes, and the supporting device forms two guiding posts to be correspondingly inserted into the through holes.
7. An assembly method for pressing an inner stator into a receiving space of an outer stator, the assembly method comprising:
providing a first positioning plate that defines a first opening forming a clearance fit with the inner stator, and attaching the first positioning plate on a top of the outer stator;
inserting the inner stator into the first opening of the first positioning plate; and
providing a pressing unit pressing the inner stator into the receiving space of the outer stator along the first opening of the first positioning plate.
8. The assembly method of claim 7, wherein the pressing unit comprises a supporting device to support the outer stator, and a pressing device movable relatively to the supporting device to press the inner stator.
9. The assembly method of claim 8, further comprising providing a second positioning plate fixed on the supporting device, wherein the second positioning plate defines a second opening to receive a lower portion of the outer stator.
10. The assembly method of claim 8, further comprising providing a third positioning plate, wherein a wire bracket is installed on a top of the inner stator, an upper die perpendicularly extends down from the pressing device, the third positioning plate is fixed to a lower portion of the upper die to press the inner stator.
11. The assembly method of claim 8, wherein the pressing device defines two through holes, and the supporting device forms two guiding posts to be correspondingly inserted into the through holes.
12. The assembly method of claim 7, wherein a bottom surface of the first positioning plate defines a recess communicating with the first opening of the first positioning plate, the recess matches the outer stator for engaging with an upper portion of the outer stator.
US12/479,701 2008-12-24 2009-06-05 Assembly mechanism for motor stators and assembly method for the same Expired - Fee Related US7752741B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200810306512.5A CN101764470B (en) 2008-12-24 2008-12-24 Motor stator combining device and method thereof
CN200810306512.5 2008-12-24

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US20100154200A1 true US20100154200A1 (en) 2010-06-24
US7752741B1 US7752741B1 (en) 2010-07-13

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103203615A (en) * 2013-04-11 2013-07-17 安徽皖新电机有限公司 Press and method of utilizing press to press-fit stator and motor shell
CN106411060A (en) * 2016-05-19 2017-02-15 江门市维凯智能装备有限公司 Press-in tool for main and auxiliary stators of motor
CN106533079A (en) * 2016-12-14 2017-03-22 南京起重电机总厂 Buckle piece lamination device of conical stator punching sheet
US10447106B2 (en) * 2016-12-19 2019-10-15 New Motech Co., Ltd. Fan motor

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5278541B2 (en) * 2009-04-15 2013-09-04 トヨタ自動車株式会社 Stator manufacturing method
CN102170198B (en) * 2011-04-15 2014-10-22 无锡新大力电机有限公司 Permanent magnet motor assembling tool
CN107356190B (en) * 2017-07-20 2019-06-18 北京航天控制仪器研究所 A kind of two degrees of freedom micro-displacement

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2015462A (en) * 1933-07-28 1935-09-24 Nathan Forgings And Machining Machine for hot-forging, press and die-casting of metals
US20090162225A1 (en) * 2007-12-20 2009-06-25 Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. Pump for liquid cooling system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100511332B1 (en) * 2003-09-22 2005-08-31 엘지전자 주식회사 Apparatus for fixing stator of reciprocating compressor and method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2015462A (en) * 1933-07-28 1935-09-24 Nathan Forgings And Machining Machine for hot-forging, press and die-casting of metals
US20090162225A1 (en) * 2007-12-20 2009-06-25 Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. Pump for liquid cooling system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103203615A (en) * 2013-04-11 2013-07-17 安徽皖新电机有限公司 Press and method of utilizing press to press-fit stator and motor shell
CN106411060A (en) * 2016-05-19 2017-02-15 江门市维凯智能装备有限公司 Press-in tool for main and auxiliary stators of motor
CN106533079A (en) * 2016-12-14 2017-03-22 南京起重电机总厂 Buckle piece lamination device of conical stator punching sheet
US10447106B2 (en) * 2016-12-19 2019-10-15 New Motech Co., Ltd. Fan motor

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Publication number Publication date
CN101764470A (en) 2010-06-30
CN101764470B (en) 2013-03-13
US7752741B1 (en) 2010-07-13

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