US20050253477A1 - Brush assembly - Google Patents
Brush assembly Download PDFInfo
- Publication number
- US20050253477A1 US20050253477A1 US10/517,887 US51788704A US2005253477A1 US 20050253477 A1 US20050253477 A1 US 20050253477A1 US 51788704 A US51788704 A US 51788704A US 2005253477 A1 US2005253477 A1 US 2005253477A1
- Authority
- US
- United States
- Prior art keywords
- brush
- spring
- axis
- plunge
- arcuate face
- 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.)
- Abandoned
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/38—Brush holders
- H01R39/385—Means for mechanical fixation of the brush holder
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/38—Brush holders
- H01R39/41—Brush holders cartridge type
- H01R39/415—Brush holders cartridge type with self-recoiling spring
-
- 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
- H02K5/14—Means for supporting or protecting brushes or brush holders
- H02K5/143—Means for supporting or protecting brushes or brush holders for cooperation with commutators
- H02K5/148—Slidably supported brushes
-
- 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
-
- 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
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
-
- 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
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49119—Brush
Definitions
- the present invention relates to electric motors and more particularly to brushes and brush assemblies implemented therein.
- Electric motors are used in a variety of applications, including power tools.
- Such electric motors generally include a motor shaft, a motor armature, a field pole, field windings, a commutator assembly, brush holders and electrical leads.
- the electrical leads selectively link brushes to a power source.
- the motor armature is fixed for rotation with the motor shaft and a series of copper conducting wires are wound in various patterns about peripheral slits. Ends of the wires are fused to the commutator.
- the commutator is fixed for rotation with the motor shaft and provides an electrical connection between the rotating armature and the stationary brushes.
- the brush holders each slidably support a carbon brush that is in sliding contact with the commutator.
- the stationary brushes are held in contact with an outside surface of the commutator by spring tension and complete the electrical circuit between the rotating commutator and a power source.
- Prior art brushes include recesses formed therein for retaining an end of a biasing spring for effectively biasing the brush in contact with the commutator. These prior art recesses, however, tend to be overly complex and thus more difficult to manufacture. Further, prior art recesses fail to prohibit lateral movement of the biasing spring.
- the recess should concurrently provide sufficient biasing of the brush in contact with the commutator to avoid arcing and other detrimental occurrences.
- a brush assembly is provided for implementation in an electric motor.
- the brush assembly includes a base with a member to secure the base to a motor.
- a brush housing is associated with the base and has first and second open ends.
- a brush, defining an axis, is slidably supported within the housing between said first and second open ends.
- the brush extends from one of the first and second open ends.
- the brush includes a surface having a spring retention plunge.
- the spring retention plunge has an arcuate face angled relative to the axis.
- the brush assembly further includes a biasing member exerting a force directly on the arcuate face to bias the brush within the housing to contact with a commutator.
- An electrical connector is electrically coupled with the brush to electrically connect between the commutator and a power supply.
- FIG. 1 is a perspective view of a motor including a brush assembly in accordance with the present invention
- FIG. 2 is a perspective view of the brush assembly
- FIG. 3 is an exploded view of the brush assembly
- FIG. 4 is a plan view of the brush assembly in non-worn condition relative to a commutator shown in phantom;
- FIG. 5 is a plan view of the brush assembly in a worn condition relative to the commutator
- FIG. 6 is a perspective view of a brush of the brush assembly.
- FIG. 7 is a perspective view of a power tool implementing the motor of FIG. 1 .
- a motor 10 is provided and includes a frame 12 , windings (not shown), a commutator 14 , a brush assembly 16 and a end cap 18 .
- the brush assembly 16 is shown to couple with the end cap 18 and includes a base 20 , a housing 22 , a spring 24 , a brush 26 and an electrical connection 28 .
- the base 20 is preferably formed of a non-metallic or non-electrically conductive material and has a pair of arms 30 to secure the brush assembly 16 to the end cap 18 .
- the base 20 includes a web 32 which connects the two arms 30 .
- the web 32 has a recess 34 which receives the housing 22 .
- the housing 22 is secured in the recess 34 by tabs 36 which are bent under the base 20 .
- the housing 22 includes an open, tubular member 40 with a rectangular cross-section.
- the tubular member 40 has first and second open ends 42 , 44 .
- the first open end 42 is positioned adjacent to the commutator 14 when the brush assembly 16 is assembled onto the motor 10 .
- First and second slots 46 , 48 are positioned on respective sides of the tubular member 40 and extend from the second open end 44 .
- the slots 46 , 48 respectively, enable the spring 24 and electrical connector 28 to move with the brush 26 .
- a unitary shunt connection and connector 50 are formed with the housing 22 .
- the connector 50 enables an electrical contact 52 to be coupled with the housing 22 .
- the shunt connection 50 has a cutout 54 which interacts with a tab 55 to enable positioning of the housing 22 on the base 20 .
- the spring 24 is wound about a post 56 extending from the base 20 .
- the post 56 may be angled off-center with respect to the axis of the base 20 .
- the spring 24 biases the brush 26 through the tubular member 40 .
- the electrical connector 50 is known in the art and includes a pigtail connector 51 .
- An end of the pigtail connector 51 is ultrasonically or restistively welded to the connection member.
- the brush 26 includes a rectangularly cross-sectioned body portion 60 with first and second ends 62 , 64 , respectively.
- the first end 62 has an arcuate face 66 having a series of ribs 68 (see FIG. 6 ).
- the ribs 68 are in sliding contact with the commutator 14 when the brush assembly is assembled onto the motor 10 .
- the second end 64 includes a spring retention plunge 70 .
- the spring retention plunge 70 is a generally conical-shaped depression, with a sloping, arcuate face 72 forming a wall 74 .
- a recess 76 is also provided and includes a surface where the pigtail 50 interconnects with the brush 26 .
- the slope S (see FIG. 4 ) of the arcuate face 72 of the spring retention plunge 70 is preferably greater than 0 and less than or equal to 15 degrees. It will be appreciated, however, that this range may deviate as design requirements dictate.
- the spring retention plunge 70 is formed to retain a contact end 73 of the spring 24 .
- the contact end 73 is prohibited from moving along a lateral axis A (see FIG. 6 ) of the brush 26 .
- the contact end 73 has limited movement along a transverse axis B (see FIG. 4 ) of the brush 26 . More specifically, the wall 74 prohibits excessive travel of the contact end 73 along the transverse axis B, in that direction.
- the slope of the spring retention plunge 70 enables the contact end 73 of the spring 24 to ride within the spring retention plunge 70 to provide constant contact with the brush 26 .
- the contact end 73 rides at the bottom of the arc.
- This constant contact provides the force which, due to the slope, is substantially constant during wear of the brush 26 .
- the constant force eliminates bouncing of the brush 26 and therefore increases the brush wear durability and prohibits damage to the commutator 14 .
- the spring retention plunge 70 of the brush 26 provides another advantage in that it is more easily manufactured than prior art forms. More particularly, to form the plunge 70 , a single step process may be implemented, whereby a grinding wheel or round mill is plunged into the brush 26 at an angle relative to the top face of the brush 26 . The grinding wheel diameter, tilt angle and cut depth can be varied to provide an optimum plunge 70 . For optimization, the width and slope of the plunge 70 are considerations for the amount of play the spring 24 will have while still biasing the brush 26 . In this manner, manufacture of the brush 26 is variable and simplified and savings are achievable in both cycle time and machine cost.
- an exemplary power tool 80 is shown, such as a power drill.
- the power tool 80 includes a housing 82 having the motor 10 mounted therein, and an output member 84 in driven engagement with the motor 10 .
- a power supply such as a power cord or battery, is also included to respectively provide remote or local drive power to the motor 10 .
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Current Collectors (AREA)
- Motor Or Generator Frames (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Pens And Brushes (AREA)
Abstract
A brush assembly has a base with a member to secure the base to a motor end cap assembly. A brush housing is associated with the base. The brush housing includes first and second open ends. A brush, defining an axis, is slidably supported within the housing. The brush extends from one of the first and second open ends. The brush includes a surface with a spring retention plunge. The spring retention plunge defines an arcuate face angled relative to the axis. A biasing member exerts a force directly on the arcuate face to bias the brush into contract with a commutator. An electrical connection is made between the commutator and a power supply.
Description
- The present invention relates to electric motors and more particularly to brushes and brush assemblies implemented therein.
- Electric motors are used in a variety of applications, including power tools. Such electric motors generally include a motor shaft, a motor armature, a field pole, field windings, a commutator assembly, brush holders and electrical leads. The electrical leads selectively link brushes to a power source. The motor armature is fixed for rotation with the motor shaft and a series of copper conducting wires are wound in various patterns about peripheral slits. Ends of the wires are fused to the commutator. The commutator is fixed for rotation with the motor shaft and provides an electrical connection between the rotating armature and the stationary brushes. The brush holders each slidably support a carbon brush that is in sliding contact with the commutator. Generally, the stationary brushes are held in contact with an outside surface of the commutator by spring tension and complete the electrical circuit between the rotating commutator and a power source.
- Various spring biased mounting configurations have been developed to maintain brush contact with the commutator. Effectiveness and wear durability of the brush is decreased when the brush is subjected to arcing. Arcing generally occurs as a result of the brush bouncing away from the commutator as rough spots and irregularities of the commutator pass under the brush. Prior art brushes include recesses formed therein for retaining an end of a biasing spring for effectively biasing the brush in contact with the commutator. These prior art recesses, however, tend to be overly complex and thus more difficult to manufacture. Further, prior art recesses fail to prohibit lateral movement of the biasing spring.
- Therefore, it is desirable in the industry to provide an improved brush having a simplified recess. The recess should concurrently provide sufficient biasing of the brush in contact with the commutator to avoid arcing and other detrimental occurrences.
- A brush assembly is provided for implementation in an electric motor. The brush assembly includes a base with a member to secure the base to a motor. A brush housing is associated with the base and has first and second open ends. A brush, defining an axis, is slidably supported within the housing between said first and second open ends. The brush extends from one of the first and second open ends. The brush includes a surface having a spring retention plunge. The spring retention plunge has an arcuate face angled relative to the axis. The brush assembly further includes a biasing member exerting a force directly on the arcuate face to bias the brush within the housing to contact with a commutator. An electrical connector is electrically coupled with the brush to electrically connect between the commutator and a power supply.
- Further areas of applicability of the present invention will become apparent from the detailed description provided hereinafter. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
- The present invention will become more fully understood from the detailed description and the accompanying drawings, wherein:
-
FIG. 1 is a perspective view of a motor including a brush assembly in accordance with the present invention; -
FIG. 2 is a perspective view of the brush assembly; -
FIG. 3 is an exploded view of the brush assembly; -
FIG. 4 is a plan view of the brush assembly in non-worn condition relative to a commutator shown in phantom; -
FIG. 5 is a plan view of the brush assembly in a worn condition relative to the commutator; -
FIG. 6 is a perspective view of a brush of the brush assembly; and -
FIG. 7 is a perspective view of a power tool implementing the motor ofFIG. 1 . - The following description of the preferred embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses.
- With particular reference to
FIG. 1 , amotor 10 is provided and includes aframe 12, windings (not shown), acommutator 14, abrush assembly 16 and aend cap 18. Thebrush assembly 16 is shown to couple with theend cap 18 and includes abase 20, ahousing 22, aspring 24, abrush 26 and anelectrical connection 28. Thebase 20 is preferably formed of a non-metallic or non-electrically conductive material and has a pair ofarms 30 to secure thebrush assembly 16 to theend cap 18. Further, thebase 20 includes aweb 32 which connects the twoarms 30. Theweb 32 has arecess 34 which receives thehousing 22. Thehousing 22 is secured in therecess 34 bytabs 36 which are bent under thebase 20. - The
housing 22 includes an open,tubular member 40 with a rectangular cross-section. Thetubular member 40 has first and secondopen ends open end 42 is positioned adjacent to thecommutator 14 when thebrush assembly 16 is assembled onto themotor 10. First andsecond slots tubular member 40 and extend from the secondopen end 44. Theslots spring 24 andelectrical connector 28 to move with thebrush 26. Also, a unitary shunt connection andconnector 50 are formed with thehousing 22. Theconnector 50 enables anelectrical contact 52 to be coupled with thehousing 22. Theshunt connection 50 has acutout 54 which interacts with atab 55 to enable positioning of thehousing 22 on thebase 20. - The
spring 24 is wound about apost 56 extending from thebase 20. Thepost 56 may be angled off-center with respect to the axis of thebase 20. Thespring 24 biases thebrush 26 through thetubular member 40. Theelectrical connector 50 is known in the art and includes apigtail connector 51. An end of thepigtail connector 51 is ultrasonically or restistively welded to the connection member. - The
brush 26 includes a rectangularlycross-sectioned body portion 60 with first andsecond ends first end 62 has anarcuate face 66 having a series of ribs 68 (seeFIG. 6 ). Theribs 68 are in sliding contact with thecommutator 14 when the brush assembly is assembled onto themotor 10. Thesecond end 64 includes aspring retention plunge 70. Thespring retention plunge 70 is a generally conical-shaped depression, with a sloping,arcuate face 72 forming awall 74. Arecess 76 is also provided and includes a surface where thepigtail 50 interconnects with thebrush 26. - The slope S (see
FIG. 4 ) of thearcuate face 72 of thespring retention plunge 70 is preferably greater than 0 and less than or equal to 15 degrees. It will be appreciated, however, that this range may deviate as design requirements dictate. Thespring retention plunge 70 is formed to retain acontact end 73 of thespring 24. Thecontact end 73 is prohibited from moving along a lateral axis A (seeFIG. 6 ) of thebrush 26. Likewise, thecontact end 73 has limited movement along a transverse axis B (seeFIG. 4 ) of thebrush 26. More specifically, thewall 74 prohibits excessive travel of thecontact end 73 along the transverse axis B, in that direction. The slope of thespring retention plunge 70 enables thecontact end 73 of thespring 24 to ride within thespring retention plunge 70 to provide constant contact with thebrush 26. Ordinarily, thecontact end 73 rides at the bottom of the arc. This constant contact provides the force which, due to the slope, is substantially constant during wear of thebrush 26. The constant force eliminates bouncing of thebrush 26 and therefore increases the brush wear durability and prohibits damage to thecommutator 14. - The
spring retention plunge 70 of thebrush 26 provides another advantage in that it is more easily manufactured than prior art forms. More particularly, to form theplunge 70, a single step process may be implemented, whereby a grinding wheel or round mill is plunged into thebrush 26 at an angle relative to the top face of thebrush 26. The grinding wheel diameter, tilt angle and cut depth can be varied to provide anoptimum plunge 70. For optimization, the width and slope of theplunge 70 are considerations for the amount of play thespring 24 will have while still biasing thebrush 26. In this manner, manufacture of thebrush 26 is variable and simplified and savings are achievable in both cycle time and machine cost. - With particular reference to
FIG. 7 , anexemplary power tool 80 is shown, such as a power drill. Thepower tool 80 includes ahousing 82 having themotor 10 mounted therein, and anoutput member 84 in driven engagement with themotor 10. A power supply, such as a power cord or battery, is also included to respectively provide remote or local drive power to themotor 10. - The description of the invention is merely exemplary in nature and, thus, variations that do not depart from the gist of the invention are intended to be within the scope of the invention. Such variations are not to be regarded as a departure from the spirit and scope of the invention.
Claims (11)
1. A brush assembly for an electric motor having an end cap assembly and a commutator, comprising:
a base having a member for securing said base to the motor end cap assembly;
a brush housing associated with said base and having first and second open ends;
a brush, defining an axis, slidably supported within said housing between said first and second open ends, said brush extending from one of said first and second open ends, said brush including a surface having a spring retention plunge, said spring retention plunge defining an arcuate face angled relative to said axis on an angle greater than 0° and up to 15° and a wall formed in said surface for retaining contact of said biasing member with said spring retention plunge;
a biasing member having a contact end exerting a force directly on said arcuate face for biasing said brush within said housing for contact with the commutator, said contact end defining a line which extends across said arcuate face such that said contact end abuts said arcuate face along said line for prohibiting excessive movement of the contact end along an axis transverse to said brush axis; and
an electrical connector electrically coupled with said brush for electrical connection between the commutator and a power supply.
2. (canceled)
3. The brush assembly of claim 1 , wherein a slope of said spring retention plunge enables transverse retention of said spring.
4. A brush for an electric motor, comprising:
a body having a desired configuration for fitting within a housing, said body defining an axis; and
a spring retention plunge formed in a surface of said body, said plunge defining an arcuate face angled relative to a plane transverse to said axis, said surface at a terminal end of said body, wherein a slope of said arcuate face is greater than zero degrees and up to 15°, said arcuate face having a curvature sized to receive a spring such that the spring contacts the arcuate face along a line to prohibit excess movement of the spring on the arcuate surface for enabling spring force exerted thereon to be substantially constant as said body wears and a wall in said surface for retaining contact of a biasing member with said spring retention plunge.
5. (canceled)
6. The brush of claim 4 , wherein said slope of said spring retention plunge enables transverse retention of a biasing member.
7. A method of manufacturing a brush for an electric motor, comprising the steps of:
providing a brush blank defining an axis therethrough and having a top surface;
forming an arcuate spring retention plunge in said top surface having a slope relative to said axis; and
plunging one of a grinding disc and cutting wheel into said top surface.
8. (canceled)
9. The method of claim 8 , further comprising the step of angling said one of a grinding disc and cutting wheel at an angle relative to said axis.
10. The method of claim 7 , further comprising the step of providing a diameter of said arcuate spring retention plunge, perpendicular to said axis, enabling lateral retention of a biasing member.
11. The method of claim 7 , further comprising the step of providing a degree of said slope of said spring retention plunge sufficient to enable transverse retention of a biasing member.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/517,887 US20050253477A1 (en) | 2002-06-13 | 2003-06-11 | Brush assembly |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/171,180 US6664701B1 (en) | 2002-06-13 | 2002-06-13 | Brush assembly |
PCT/US2003/018279 WO2003107492A1 (en) | 2002-06-13 | 2003-06-11 | Brush assembly |
US10/517,887 US20050253477A1 (en) | 2002-06-13 | 2003-06-11 | Brush assembly |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US10/171,180 Continuation US6664701B1 (en) | 2002-06-13 | 2002-06-13 | Brush assembly |
Publications (1)
Publication Number | Publication Date |
---|---|
US20050253477A1 true US20050253477A1 (en) | 2005-11-17 |
Family
ID=29711055
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/171,180 Expired - Fee Related US6664701B1 (en) | 2002-06-13 | 2002-06-13 | Brush assembly |
US10/517,887 Abandoned US20050253477A1 (en) | 2002-06-13 | 2003-06-11 | Brush assembly |
US10/607,428 Expired - Fee Related US7059038B2 (en) | 2002-06-13 | 2003-06-26 | Brush assembly |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/171,180 Expired - Fee Related US6664701B1 (en) | 2002-06-13 | 2002-06-13 | Brush assembly |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/607,428 Expired - Fee Related US7059038B2 (en) | 2002-06-13 | 2003-06-26 | Brush assembly |
Country Status (9)
Country | Link |
---|---|
US (3) | US6664701B1 (en) |
EP (1) | EP1522127B1 (en) |
JP (1) | JP2005530466A (en) |
CN (1) | CN100334783C (en) |
AT (1) | ATE405012T1 (en) |
AU (1) | AU2003237542A1 (en) |
DE (1) | DE60322904D1 (en) |
TW (1) | TWI222776B (en) |
WO (1) | WO2003107492A1 (en) |
Cited By (3)
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US20080007135A1 (en) * | 2006-07-07 | 2008-01-10 | Taiwan Long Hawn Enterprise Co. | Carbon brush holder for motor |
US20100258327A1 (en) * | 2007-11-27 | 2010-10-14 | Florian Esenwein | Electrically driven hand-held power tool |
US20170256900A1 (en) * | 2016-03-07 | 2017-09-07 | Johnson Electric S.A. | Brush assembly, motor and liquid pump |
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US6664701B1 (en) * | 2002-06-13 | 2003-12-16 | Black & Decker Inc. | Brush assembly |
US6998754B2 (en) * | 2004-03-05 | 2006-02-14 | Energy Conversion Systems Holdings, Llc | Brush assemblies |
US20050285463A1 (en) * | 2004-06-29 | 2005-12-29 | Hockaday Shepard L | Brush assemblies |
US7696666B2 (en) | 2006-10-06 | 2010-04-13 | Remy Technologies, L.L.C. | Dynamoelectric machine grommet |
US7705512B2 (en) | 2006-10-06 | 2010-04-27 | Remy International, Inc. | Dynamoelectric machine conductor |
US7988538B2 (en) | 2006-10-13 | 2011-08-02 | Black & Decker Inc. | Large angle grinder |
US20090085425A1 (en) * | 2007-09-27 | 2009-04-02 | Wen-Chia Chang | Flat Spring and Voice Coil Motor using the same |
DE102007059555A1 (en) * | 2007-12-11 | 2009-06-18 | Hoffmann & Co. Elektrokohle Ag | Brush assembly for an electric machine, spring and seal assembly for the same, and method of making the same |
JP4478188B2 (en) * | 2008-05-19 | 2010-06-09 | 三菱電機株式会社 | Brush device |
DE102008041716A1 (en) * | 2008-08-29 | 2010-03-04 | Robert Bosch Gmbh | Hand tool with brush motor |
EP2429066B1 (en) * | 2010-09-13 | 2020-04-01 | LG Innotek Co., Ltd. | Sheet plate for DC motor |
KR101789816B1 (en) | 2010-12-21 | 2017-10-25 | 엘지이노텍 주식회사 | Sheet plate for ac motor |
CN103368031B (en) * | 2012-04-11 | 2016-04-13 | 隆环企业有限公司 | Carbon brush holder |
US9143015B2 (en) | 2012-05-23 | 2015-09-22 | Black & Decker Inc. | Brush holder for a brush assembly for a power tool motor |
FR2996368B1 (en) * | 2012-09-28 | 2015-11-13 | Valeo Equip Electr Moteur | ELECTRIC MACHINE BROOM AND CORRESPONDING BRUSH HOLDER |
FR3013168A1 (en) * | 2013-11-08 | 2015-05-15 | Valeo Equip Electr Moteur | ELECTRIC MACHINE BRUSH HOLDER FOR VEHICLE AND CORRESPONDING STARTER |
FR3030927A1 (en) * | 2014-12-18 | 2016-06-24 | Valeo Equip Electr Moteur | ASSEMBLY FOR MOTOR VEHICLE MOTOR MOTOR ELECTRIC MOTOR BRUSH HOLDER |
FR3030926B1 (en) * | 2014-12-18 | 2016-12-09 | Valeo Equip Electr Moteur | ASSEMBLY FOR MOTOR VEHICLE MOTOR MOTOR ELECTRIC MOTOR BRUSH HOLDER |
FR3069983A1 (en) * | 2017-08-04 | 2019-02-08 | Valeo Equipements Electriques Moteur | BRUSH CAGE ASSEMBLY |
US10840781B2 (en) | 2018-09-25 | 2020-11-17 | Dennis J. Mancl | Commutator brush and rolled-up spring assembly |
WO2020105501A1 (en) * | 2018-11-22 | 2020-05-28 | パナソニックIpマネジメント株式会社 | Motor and brush housing part |
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US3355611A (en) * | 1965-06-11 | 1967-11-28 | Union Carbide Corp | Brush clip assembly |
US5053665A (en) * | 1989-08-10 | 1991-10-01 | Asmo Co., Ltd. | Retaining structure of brush spring of electric motor |
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- 2003-06-11 EP EP03736986A patent/EP1522127B1/en not_active Expired - Lifetime
- 2003-06-11 AU AU2003237542A patent/AU2003237542A1/en not_active Abandoned
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- 2003-06-11 JP JP2004514189A patent/JP2005530466A/en active Pending
- 2003-06-11 WO PCT/US2003/018279 patent/WO2003107492A1/en active Application Filing
- 2003-06-11 DE DE60322904T patent/DE60322904D1/en not_active Expired - Lifetime
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080007135A1 (en) * | 2006-07-07 | 2008-01-10 | Taiwan Long Hawn Enterprise Co. | Carbon brush holder for motor |
US20100258327A1 (en) * | 2007-11-27 | 2010-10-14 | Florian Esenwein | Electrically driven hand-held power tool |
US20170256900A1 (en) * | 2016-03-07 | 2017-09-07 | Johnson Electric S.A. | Brush assembly, motor and liquid pump |
US10777957B2 (en) * | 2016-03-07 | 2020-09-15 | Johnson Electric International AG | Brush assembly, motor and liquid pump |
Also Published As
Publication number | Publication date |
---|---|
US7059038B2 (en) | 2006-06-13 |
EP1522127A1 (en) | 2005-04-13 |
CN1659749A (en) | 2005-08-24 |
US6664701B1 (en) | 2003-12-16 |
CN100334783C (en) | 2007-08-29 |
WO2003107492A1 (en) | 2003-12-24 |
AU2003237542A1 (en) | 2003-12-31 |
TWI222776B (en) | 2004-10-21 |
ATE405012T1 (en) | 2008-08-15 |
TW200405641A (en) | 2004-04-01 |
US20030230951A1 (en) | 2003-12-18 |
EP1522127B1 (en) | 2008-08-13 |
DE60322904D1 (en) | 2008-09-25 |
US20040004409A1 (en) | 2004-01-08 |
JP2005530466A (en) | 2005-10-06 |
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