EP1588469A2 - Ensemble stator dote d'un surmoulage fixant des aimants sur une bague magnetique et la bague magnetique sur un boitier de stator - Google Patents

Ensemble stator dote d'un surmoulage fixant des aimants sur une bague magnetique et la bague magnetique sur un boitier de stator

Info

Publication number
EP1588469A2
EP1588469A2 EP03790418A EP03790418A EP1588469A2 EP 1588469 A2 EP1588469 A2 EP 1588469A2 EP 03790418 A EP03790418 A EP 03790418A EP 03790418 A EP03790418 A EP 03790418A EP 1588469 A2 EP1588469 A2 EP 1588469A2
Authority
EP
European Patent Office
Prior art keywords
flux ring
housing
stator assembly
magnets
flux
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP03790418A
Other languages
German (de)
English (en)
Other versions
EP1588469A4 (fr
Inventor
Earl M. Ortt
Michael J. Agnes
Hung Du
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Black and Decker Inc
Original Assignee
Black and Decker Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US10/468,643 external-priority patent/US7038343B2/en
Priority claimed from US10/702,379 external-priority patent/US6903475B2/en
Application filed by Black and Decker Inc filed Critical Black and Decker Inc
Publication of EP1588469A2 publication Critical patent/EP1588469A2/fr
Publication of EP1588469A4 publication Critical patent/EP1588469A4/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12Stationary parts of the magnetic circuit
    • H02K1/17Stator cores with permanent magnets
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12Stationary parts of the magnetic circuit
    • H02K1/18Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K23/00DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
    • H02K23/02DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting
    • H02K23/04DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting having permanent magnet excitation
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/04Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/08Insulating casings
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/04Details of the magnetic circuit characterised by the material used for insulating the magnetic circuit or parts thereof
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K15/00Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • H02K15/03Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/04Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/173Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
    • H02K5/1732Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings radially supporting the rotary shaft at both ends of the rotor

Definitions

  • the present invention relates to electric motors, and more particularly to stator assemblies for electric motors.
  • stator assemblies for permanent magnet electric motors magnets are retained within the stator assembly.
  • magnets are retained on a stator housing or a separate flux ring within the stator housing. This generally requires gluing or adhering each individual magnet to the flux ring or stator housing.
  • the present invention provides a stator assembly for an electric motor.
  • the stator assembly includes a stator housing, a split flux ring inserted into the stator housing and a plurality of magnets on an inner surface of the flux ring.
  • An overmolding secures the magnets to the flux ring and asserts a radial force on the flux ring to secure it to the stator housing. Additionally, the overmolding fills the seam of the flux ring and prevents collapse of the flux ring.
  • the material used to mold the overmolding is a plastic that is injection molded about the magnets on the flux ring after the flux ring and magnets have been placed in the stator housing.
  • the pressure of the plastic as it is being injection molded exerts a radial pressure on the flux ring, expanding it against the stator housing and secures it to the stator housing.
  • the overmolding also secures the magnets to the flux ring.
  • the flux ring is aligned with the stator housing and is further secured to it by engagement of a dimple in one of the flux ring and stator housing with a hole in the other of the flux ring and the stator housing.
  • At least one of a rear bearing support, front bearing support and fan baffle are integrally molded with the overmolding when the material used to mold the overmolding is molded.
  • the overmolding is formed with slots of different widths between magnetic poles of the stator assembly to provide a keying feature for the stator assembly to key it, such as when it is placed in a magnetizer.
  • the flux ring and housing are preformed as a unit by stamping them from blanks and rolling them together.
  • the flux ring blank is rolled first to form the flux ring and the housing blank rolled around the flux ring with the flux ring acting as a rolling arbor.
  • an electric motor has an armature and a stator assembly in accordance with the invention.
  • a power tool has a housing including an electric motor having an output coupled to a transmission.
  • the electric motor has an armature and a stator assembly in accordance with the invention.
  • Figure 1 is a cross-sectional view of a power tool according to the present invention.
  • Figure 2 is a perspective view of a stator assembly of the power tool of Figure 1;
  • FIG. 3 is a cross-section view of the stator assembly of Fig. 2 taken along the line 3 - 3;
  • Fig. 4 is a perspective view of a flux ring of the stator assembly of Fig. 2;
  • Fig. 5 is a perspective view of a stator can or housing of the stator assembly of Fig. 2;
  • Fig. 6 is a perspective view of the flux ring of Fig. 4 received in the stator can of Fig. 5;
  • Fig. 7 is a perspective view of a variation of the flux ring of Fig.
  • Fig. 8 is a cross-sectional view of an alternative configuration of the stator assembly of Fig. 2;
  • Fig. 9 is a perspective view of an electric motor having an alternative configuration of the stator assembly of Fig. 2;
  • Fig. 10 is a cross-sectional view of the electric motor of Fig. 9 taken along the line 10 - 10;
  • Fig. 11 is a perspective view of an alternative stator assembly; and [0027] Fig. 12 is a perspective view of still another alternative stator assembly.
  • the power tool 10 is illustrated as a drill, however, any type of power tool may be used in accordance with the present invention.
  • the power tool 10 includes a housing 12 which surrounds a motor 14.
  • An activation member 16 is coupled with the motor and a power source 18.
  • the power source 18 includes either a power cord (AC current) or includes a battery (DC current) (not shown).
  • the motor 14 is coupled with an output 20 that includes a transmission 22 and a chuck 24.
  • the chuck 24 is operable to retain a tool (not shown).
  • the motor includes a stator assembly 30.
  • the stator assembly 30 The stator assembly
  • the stator 30 includes a stator housing 32, a flux ring 34 and magnets 36.
  • the flux ring 34 is an expandable or split flux ring.
  • An armature 40 includes a shaft 42, a rotor 44 and a commutator 50 coupled with the shaft 42.
  • the rotor 44 includes laminations 46 and windings 48.
  • the motor 14 also includes end plates 52 and 54.
  • End plate 52 includes a front bearing 56 which supports one end of a shaft 42.
  • the shaft 42 is coupled with a pinion 60 that is part of the output 20.
  • Brushes 62 and 64 are associated with the commutator 50.
  • a rear bearing 70 is also coupled with the end plate 54 to balance rotation of the shaft 42.
  • Stator housing 32 and flux ring 34 are illustratively made of soft magnetic material, such as cold rolled steel.
  • the flux ring 34 has anchors 80 extending radially inward.
  • the magnets 36 are disposed around an inner surface 82 of the flux ring 34 between anchors 80.
  • An overmolding 84 secures the magnets 36 to flux ring 34 as described in more detail in WO 02/068235 A2.
  • the flux ring 34 is discontinuous having a seam 86 extending therealong.
  • the seam 86 enables the flux ring 34 to be compressed for insertion into the stator housing 32.
  • the seam 86 is preferably disposed over one of magnetic poles P-i, P 2 of the stator assembly 30 to minimize magnetic losses.
  • the flux ring 34 includes a projection or dimple 88 that engages a hole 90 in the stator housing 32.
  • the stator housing 32 includes a projection or dimple 92 that engages a hole 94 in the flux ring 34.
  • the dimple 88,92 and hole 90,94 are illustratively at ninety degrees to seam 86 to provide sufficient displacement of dimple 88 or hole 94, as applicable, in flux ring 34 with respect to stator housing 32 when flux ring 34 is compressed so that when flux ring 34 is uncompressed, dimple 88 will be urged into hole 90 (or hole 94 around dimple 92).
  • the dimple 88, 92 and hole 90, 94 are ideally centered over one of the magnetic poles P- t , P 2 to reduce magnetic losses.
  • Overmolding 84 is formed so there are slots 95, 96 on diametrically opposite sides of flux ring 34 between the overmolding 84 around magnets 36 of pole Pi, and the overmolding 84 around magnets 36 of pole P 2 .
  • Slots 95, 96 illustratively extend axially along inner surface 82 of flux ring 34 between poles Pi and P 2 .
  • Slots 95, 96 may be gaps in the overmolding 84 or regions of reduced thickness in the overmolding 84.
  • stator assembly 30 has one pair of magnetic poles, with one of poles Pi and P 2 thus being a North pole and the other being a South pole. It should be understood that stator assembly 30 could have more than one pair of North and South poles.
  • stator housing 32 and flux ring 34 are each preformed.
  • stator housing 32 illustratively has interlocking fingers 33 as shown in Fig. 5.
  • the flux ring 34 is slightly compressed and inserted into the stator housing 32 as shown in Fig. 6.
  • the dimple 88,92 engages the hole 90,94 as described above.
  • the magnets 36 are placed against the inner surface 82 of the flux ring 34 and are positioned between the anchors 80.
  • the magnets 36 can be lightly magnetized so they are retained against the inner surface 82 of flux ring 34 during assembly.
  • Overmold material 83 such as plastic, is injection molded into the stator assembly 30 to form the overmolding 84.
  • the pressure of the overmold material 83 pushes against the magnets 36 and flux ring 34, expanding the flux ring 34 against the stator housing 32.
  • the overmold material 83 fills the seam 86 of flux ring 34 and surrounds the magnets 36. Expansion of the flux ring 34 against the stator housing 32 provides the retention force for retaining the flux ring 34 within the stator housing 32. Further, because the overmolding 84 fills the seam 86 of the flux ring 34, compression of the flux ring 34 in the stator housing 32 is prevented after the overmold material 83 hardens, thus preventing the removal of flux ring 34 from the stator housing 32.
  • stator assembly 30 The engagement of the dimple 88, 92 and hole 90, 94, held in place by the overmolding 84, further secures the flux ring 34 to the stator housing 32.
  • the diameter and true position of the overmolding 84 are maintained closely relative to the inside diameter of the stator housing 32 to reduce tolerance stack-ups to the armature 40 (Fig. 1). It should be understood that there can be more than one dimple/hole arrangement in flux ring 34 and stator housing 32.
  • slot 95 is wider than slot 96. This limits to two the orientations in which stator assembly 30 can be placed in a magnetizer (not shown) used to magnetize magnets 36 after stator assembly 30 is assembled.
  • stator assembly 30 could be placed in the magnetizer in four orientations. That is, either end of stator assembly 30 could be placed in the magnetizer in two orientations that are 180 degrees apart.
  • each end of the stator assembly 30 can be placed in the magnetizer in only one orientation, reducing to two the orientations in which the stator assembly 30 can be placed in the magnetizer. This makes sensing of the stator assembly 30 in the magnetizer fixture more robust and eliminates the possibility of magnetizing backwards due to placing the stator assembly 30 in the magnetizer in the wrong orientation. It should be understood that in stator assemblies having more than two poles, preferably the width of only one of the slots between the poles would be different than the widths of the rest of the slots between the poles to key the stator assembly to the magnetizer.
  • the stator housing 32 and the flux ring 34 are preassembled as a unit according to an alternative assembly method. More specifically, the stator housing 32 and flux ring 34 are formed of separate blanks, such as steel blanks, and in this regard, the edges of the seams of flux ring 34 and stator housing 32 are formed to have interlocking fingers, such as interlocking fingers 33 shown in Fig. 5 for stator housing 32 and interlocking fingers 37 shown in Fig. 7 for flux ring 34. One or more holes 94 are stamped into the flux ring and matching mating dimple(s) 92 stamped in the stator housing 32, or vice-versa.
  • the stator housing 32 and flux ring 34 are lain together in their flat, pre-rolled states with the holes and dimples engaged.
  • the stator housing 32 and flux ring 34 are rolled and the seam of the flux ring 34 interlocks as does the seam of the stator housing 32.
  • the holes and dimples maintain alignment of the stator housing 32 and flux ring 34 during the rolling process.
  • the flux ring 34 can be rolled first and the stator housing 32 rolled about the flux ring 34. In this case, the flux ring 34 acts as a rolling arbor. Additionally, the holes and dimples maintain alignment as the stator housing 32 is rolled about the flux ring 34.
  • stator housing 32 and flux ring 34 can be spot-welded together to form a sub-assembly. Regardless of how the stator housing 32 and flux ring 34 are assembled together, injection of the overmold material 83 not only secures the magnets 36 to the flux ring 34 but also secures the flux ring 34 to the stator housing 32 through the pressure exerted on the flux ring 34 therein. [0038]
  • the stator assembly 30 of the present invention provides significant advantages in both assembly and manufacture of the power tool 10. In particular, the stator assembly 30 eliminates the need for welding equipment to secure the components together.
  • the expansion of flux ring 34 against stator housing 32 induced by injection of the overmold material 83 secures the flux ring 34 to stator housing 32 and the overmolding 84 also secures the magnets to flux ring 34.
  • the interlocking of the dimple/hole arrangement(s) further secure the flux ring 34 to the stator housing 32.
  • injection of the overmold material 83 reduces tolerance stack-ups, improving ease of assembly. As a result, manufacturing equipment and floor space is reduced entailing cost savings.
  • Another advantage of reduced tolerance stack-ups is that the magnet can be placed closer to the armature 40 thus maximizing motor performance.
  • the keying feature provided by the different widths of slots 95, 96 improve the placement of stator assembly 30 in the magnetizer.
  • the stator assembly 100 includes the stator housing 32, flux ring 34, and permanent magnets 36 as shown in the stator assembly 30 of Figs. 2 - 6.
  • the stator assembly 100 further includes an integrally molded commutator end or rear bearing support 102 and an integrally molded fan baffle 104.
  • An armature, such as armature 40 (Fig. 1), is received in stator assembly 100.
  • a fan 112 is affixed at one end of shaft 42 of armature 40 and is disposed within fan baffle 104.
  • An insulative sleeve 114 may illustratively be disposed between shaft 42 and laminations 46 and between shaft 42 and commutator 50.
  • An end plate (not shown in Figs. 9 and 10), such as end plate 52 (Fig. 1 ), is affixed to fan baffle 104.
  • the rear bearing support 102 includes a cap 106 integrally molded from the overmold material 83.
  • the cap 106 includes a pocket 108 for receiving rear bearing 70 (Fig. 1). Integrally forming the cap 106 as part of the overmolding 84 from the overmold material 83 eliminates the need for separate fasteners to fix the rear bearing support 102 to the stator housing 32.
  • the fan baffle 104 is likewise integrally molded from the overmold material 83.
  • Fig. 11 an alternate embodiment of stator assembly 100 is shown and generally indicated by reference numeral 100'.
  • Stator assembly 100' is substantially similar to the stator assembly 100 shown in
  • a front bearing support 103 (shown in phantom in Fig. 11) for engaging a front bearing, such as bearing 56 (Fig. 1), may be integrally molded in a manner substantially similar to the rear bearing support 102.
  • stator assembly 100 is illustrated and generally indicated by reference numeral 100".
  • Stator assembly 100" is substantially similar to the stator assembly 100 shown in Figs. 9 and 10, however, only the fan baffle 104 is integrally molded as part of overmolding 84 from the overmold material 83.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)
  • Dc Machiner (AREA)
  • Motor Or Generator Frames (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

L'invention concerne un ensemble stator pour un moteur électrique, comprenant un boîtier de stator, une bague magnétique expansible insérée dans le boîtier de stator et une multitude d'aimants disposés sur une surface intérieure de la bague magnétique. Un matériau de surmoulage est moulé autour des aimants dans la bague magnétique, par exemple, par moulage par injection. La pression du matériau de surmoulage, au fur et à mesure que celui-ci est moulé, fait gonfler la bague magnétique poussant ladite bague à s'engrener dans le boîtier de stator. Le matériau de surmoulage fixe les aimants sur la bague magnétique et la bague magnétique sur le boîtier. La bague magnétique ou le boîtier de stator présente un embrèvement qui entre en contact avec un trou ménagé dans la bague magnétique ou dans le boîtier de manière à permettre l'alignement de la bague magnétique et du boîtier de stator. Dans un aspect de cette invention, le matériau de surmoulage est moulé de manière à former au moins une extrémité de commutateur, ou un support de palier arrière, ou un support de palier avant, ou un déflecteur de ventilation. Dans un autre aspect de cette invention, le matériau de surmoulage est moulé de manière à former un élément de clavetage, lequel peut présenter des encoches de différentes largeurs entre les pôles magnétiques de l'ensemble stator. Dans un autre aspect de cette invention, la bague magnétique et le boîtier sont préformés en tant qu'unité par poinçonnage à partir d'ébauches puis mandrinage ensemble. Dans un mode de réalisation différent, l'ébauche de la bague magnétique est mandrinée en premier de manière à former une bague magnétique et l'ébauche du boîtier est mandriné autour de la bague magnétique; cette dernière servant d'arbre de mandrinage.
EP03790418.2A 2002-12-13 2003-12-10 Ensemble stator dote d'un surmoulage fixant des aimants sur une bague magnetique et la bague magnetique sur un boitier de stator Withdrawn EP1588469A4 (fr)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US468643 1999-12-22
US702379 2000-10-31
US10/468,643 US7038343B2 (en) 2002-02-22 2002-02-22 Field assembly for a motor and method of making same
US43349602P 2002-12-13 2002-12-13
US433496P 2002-12-13
US10/702,379 US6903475B2 (en) 2001-02-23 2003-11-05 Stator assembly with an overmolding that secures magnets to a flux ring and the flux ring to a stator housing
PCT/US2003/039145 WO2004055956A2 (fr) 2002-12-13 2003-12-10 Ensemble stator dote d'un surmoulage fixant des aimants sur une bague magnetique et la bague magnetique sur un boitier de stator

Publications (2)

Publication Number Publication Date
EP1588469A2 true EP1588469A2 (fr) 2005-10-26
EP1588469A4 EP1588469A4 (fr) 2014-04-30

Family

ID=34381919

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03790418.2A Withdrawn EP1588469A4 (fr) 2002-12-13 2003-12-10 Ensemble stator dote d'un surmoulage fixant des aimants sur une bague magnetique et la bague magnetique sur un boitier de stator

Country Status (8)

Country Link
EP (1) EP1588469A4 (fr)
JP (1) JP2006518177A (fr)
KR (1) KR20050084230A (fr)
AU (1) AU2003293467B2 (fr)
BR (1) BR0317257A (fr)
CA (1) CA2508260A1 (fr)
MX (1) MXPA05006227A (fr)
WO (1) WO2004055956A2 (fr)

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DE102005035146A1 (de) * 2005-07-27 2007-02-08 Scheuermann & Heilig Gmbh Gehäuse für eine elektrische Kleinmaschine
US20100013336A1 (en) * 2006-10-13 2010-01-21 Black & Decker Inc. Anchoring System For A Stator Housing Assembly Having An Overmolding; Power Tool With Same
DE102006059135A1 (de) * 2006-12-14 2008-06-26 Minebea Co., Ltd. Elektrische Maschine
KR101074559B1 (ko) * 2010-04-15 2011-10-17 주식회사비.엠.씨 자동차용 시트 모터
JP5739271B2 (ja) * 2011-08-09 2015-06-24 株式会社マキタ 打撃工具
JP2015510276A (ja) 2012-02-28 2015-04-02 イートン コーポレーションEaton Corporation 相互結合部を備えた磁束コレクタ及びこれを含む電磁弁アセンブリの製造方法
JP6915391B2 (ja) * 2016-08-30 2021-08-04 株式会社デンソー ステータ及びその製造方法
JP7056220B2 (ja) * 2018-02-23 2022-04-19 株式会社デンソー ステータ及び回転電機
JP7451526B2 (ja) * 2019-07-02 2024-03-18 本田技研工業株式会社 回転電機ケース
US11913473B2 (en) 2020-03-17 2024-02-27 Garrett Transportation I Inc Compressor with electric motor coolant jacket having radial and axial portions
US11581791B2 (en) 2020-11-17 2023-02-14 Garrett Transportation Inc Method of manufacturing e-boosting device
US11742717B2 (en) 2020-11-17 2023-08-29 Garrett Transportation I Inc Motor cooling system for e-boosting device
US11689076B2 (en) 2020-11-17 2023-06-27 Garrett Transportation I Inc Motor cooling system for e-boosting device

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EP1162715A1 (fr) * 2000-06-02 2001-12-12 Asmo Co., Ltd. Machine dynamoélectrique et culasse extérieure pour ladite machine
EP1237252A2 (fr) * 2001-02-23 2002-09-04 Black & Decker Inc. Arrangement d'aimants pour un moteur et procédé de fabrication

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DE2302947A1 (de) * 1972-02-04 1973-08-09 Ford Werke Ag Dynamomaschine
WO2001080400A2 (fr) * 2000-04-19 2001-10-25 Crumax Magnetics, Inc. Ensemble stator a aimant permanent et procede de fabrication
EP1162715A1 (fr) * 2000-06-02 2001-12-12 Asmo Co., Ltd. Machine dynamoélectrique et culasse extérieure pour ladite machine
EP1237252A2 (fr) * 2001-02-23 2002-09-04 Black & Decker Inc. Arrangement d'aimants pour un moteur et procédé de fabrication

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Also Published As

Publication number Publication date
AU2003293467A1 (en) 2004-07-09
BR0317257A (pt) 2005-11-08
JP2006518177A (ja) 2006-08-03
EP1588469A4 (fr) 2014-04-30
AU2003293467A2 (en) 2004-07-09
WO2004055956A2 (fr) 2004-07-01
KR20050084230A (ko) 2005-08-26
CA2508260A1 (fr) 2004-07-01
WO2004055956A3 (fr) 2006-05-18
MXPA05006227A (es) 2005-08-19
AU2003293467B2 (en) 2007-12-20

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