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WO2005025034A1 - Balai de charbon - Google Patents

Balai de charbon Download PDF

Info

Publication number
WO2005025034A1
WO2005025034A1 PCT/JP2003/011366 JP0311366W WO2005025034A1 WO 2005025034 A1 WO2005025034 A1 WO 2005025034A1 JP 0311366 W JP0311366 W JP 0311366W WO 2005025034 A1 WO2005025034 A1 WO 2005025034A1
Authority
WO
WIPO (PCT)
Prior art keywords
graphite particles
carbon brush
graphite
particle size
particle
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.)
Ceased
Application number
PCT/JP2003/011366
Other languages
English (en)
Japanese (ja)
Inventor
Hidenori Shirakawa
Yoshikazu Kagawa
Takashi Maeda
Takahiro Sakoda
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.)
TotanKako Co Ltd
Original Assignee
TotanKako Co Ltd
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
Application filed by TotanKako Co Ltd filed Critical TotanKako Co Ltd
Priority to PCT/JP2003/011366 priority Critical patent/WO2005025034A1/fr
Priority to CNA038270382A priority patent/CN1839529A/zh
Priority to DE60325785T priority patent/DE60325785D1/de
Priority to AT03818580T priority patent/ATE420477T1/de
Priority to SI200331559T priority patent/SI1662638T1/sl
Priority to EP03818580A priority patent/EP1662638B1/fr
Publication of WO2005025034A1 publication Critical patent/WO2005025034A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • H01R39/18—Contacts for co-operation with commutator or slip-ring, e.g. contact brush
    • H01R39/20—Contacts for co-operation with commutator or slip-ring, e.g. contact brush characterised by the material thereof
    • 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
    • H01R39/18—Contacts for co-operation with commutator or slip-ring, e.g. contact brush
    • H01R39/26—Solid sliding contacts, e.g. carbon brush

Definitions

  • the present invention relates to a carbon brush for an electric machine using a graphite particle filler, and more particularly to a carbon brush which suppresses particle detachment of the filler during use.
  • Akita
  • an object of the present invention is to provide a carbon brush with a long life, in which the filler structure of the graphite particle filler is made uniform and the graphite particle filler is used. Disclosure of the invention
  • the present invention relates to a carbon brush for an electric machine using a graphite particle filler, and in particular, to a carbon brush which suppresses particle detachment of the filler during use.
  • an object of the present invention is to provide a carbon brush having a long lifetime, in which the filler structure of the graphite particle filler is made uniform and the black 10 particle filler is used. Disclosure of the invention
  • FIG. 1 is a graph showing an example of a particle size distribution
  • FIG. 2 is a graph showing another example of a particle size distribution
  • FIG. 3 is a table showing characteristics of examples and comparative examples of the present invention.
  • the integrated value of the graphite particles having a particle size of 5 ⁇ m or less among the graphite particles was 10% or less, preferably 5% or less.
  • the integrated value of graphite particles with a particle diameter of 100 ⁇ m or more among graphite particles is 10% or less, and the integration of graphite particles with a particle diameter of 10 to 40 ⁇ m among graphite particles
  • the value is controlled to be 60% or more of the whole, and among them, the graphite particles having a particle diameter of 12 to 20 are controlled to be 40% or more.
  • the structure of the graphite particles forming the filler becomes uniform. For this reason, in the carbon brush using the graphite particle filler, even if the particle detachment occurs during use, the detached particle portion is small, and the life extension effect can be obtained.
  • laser light monochromatic, parallel beam
  • a spatially diffracted and scattered light intensity distribution pattern is generated.
  • This light intensity distribution pattern is detected by the sensor.
  • the light intensity distribution pattern depends on the particle size.
  • the actual measurement is a particle group, a plurality of particles of different sizes are mixed, so the light intensity distribution pattern generated from the particle group is determined by the superposition of diffraction and scattered light from each particle. Become.
  • the above-mentioned superimposed light intensity distribution pattern can be detected. It is possible to calculate what proportion of particles of such a size are contained. Then, the particle size distribution can be obtained from the calculation result.
  • a graph as shown in FIG. 1 can be obtained.
  • the horizontal axis of the graph in FIG. 1 indicates the particle diameter ( ⁇ ⁇ ) (expressed in logarithm), and the vertical axis indicates the relative particle amount (%).
  • the integrated value of the graphite particles having a particle size of 10 to 40 m is as shown in FIG.
  • the ratio of the area of the shaded portion is meant.
  • any of artificial graphite or natural graphite can be used. Further, graphite particles in which these are mixed may be used.
  • Epoxy resins, phenol resins, and various thermosetting resins obtained by modifying these resins can be used as the resin that binds between the graphite particles. These resins have a binder content of 10
  • thermosetting resin As a binder, the above-described graphite particles are mixed with a resin serving as a binder, and then molded into a predetermined shape.
  • Heat treatment is performed at a temperature of 150 to 250 ° C to obtain a carbon brush.
  • the carbon brush according to the present invention may include a solid lubricant such as molybdenum disulfide, tungsten disulfide, and boron nitride in addition to the filler described above.
  • a solid lubricant such as molybdenum disulfide, tungsten disulfide, and boron nitride in addition to the filler described above.
  • the same effect can be obtained by applying to not only the above-mentioned thermosetting type carbon brushes but also to various types of car pump brushes called kneading and firing with phenolic resin or pitch and metal graphite type. is there.
  • SALD-200OA As a laser diffraction type particle size distribution measuring device, SALD-200OA manufactured by Shimadzu Corporation was used. The same applies to the following examples and comparative examples.
  • the integrated value of the graphite particles having a particle size of 5 / m or less (the particle size distribution and the horizontal axis in FIG. Of the enclosed area, the shaded area on the left (the horizontal axis is
  • the ratio of the area of 5 mu m or less parts)) was adjusted to so that Do 1 0% of the graphite particles FILLER one (average particle diameter of 6 2 m), the mode diameter of 5 7 mu m in standard deviation 25% by weight of 0.25 artificial graphite powder and 25% by weight of epoxy resin as a binder were mixed and kneaded.
  • the kneaded material was pulverized so that the content of 63 or less was about 50%, and then molded at 100 MPa to obtain a single pump brush.
  • the integrated value of graphite particles having a particle size of 5 ⁇ m or less was 5%, and the particle size was 1% of the graphite particles.
  • the ratio of the area of the line part (the part of the horizontal axis is 100 ⁇ m or more) is 10. /. 25% by weight of an epoxy resin as a binder was mixed and kneaded with 75% by weight of artificial graphite powder adjusted to become a black sharp particle filler. This kneaded material was pulverized so that the content of 63 k ⁇ or less was about 50%, and then molded with 100 MPa to obtain a carbon brush.
  • the integrated value of graphite particles having a particle diameter of 5 nm or less was 3%, and the particle diameter of graphite particles was 10%.
  • the artificial value is adjusted so that the integrated value of graphite particles of 0 ⁇ m or more is 4%, and the integrated value of graphite particles with a particle diameter of 10 to 40 ⁇ m is 65% among graphite particles.
  • 75% by weight of graphite powder and 25% by weight of epoxy resin as a binder were mixed and kneaded.
  • the kneaded product 6 3 ⁇ ⁇ powder after grinding as following can be about 50%, to obtain a carbon brush molded in 1 0 OMP a.
  • the cumulative value of graphite particles having a particle diameter of 5 ⁇ m or less was a black bell particle filter with an integrated value of 20%. adjusted to and kneaded by blending an epoxy resin 2 5 wt 0/0 as a binder. The kneaded material was pulverized so that the content of 63 k ⁇ or less was about 50%, and then molded at 100 MPa to obtain a carbon brush.
  • the integrated value of graphite particles having a particle diameter of 5 ⁇ m or less was 30% and the particle diameter was 100 ⁇ m.
  • the average value of graphite particles of m or more is adjusted to be a graphite particle filter of 10%.
  • the cumulative diameter of graphite tin particles having a particle diameter of 5 ⁇ m or less was 40% and the particle diameter was 1%.
  • the integrated value of graphite particles of 0 ⁇ m or more is 15. Adjust so that the cumulative value of graphite particles with a particle diameter of 10 to 40 m becomes the same as the graphite particle filler of 55%, and mix and knead 20% by weight of general-purpose raw epoxy resin as a binder. did.
  • the kneaded material was pulverized so that those having a particle size of 63 ⁇ or less became about 50%, and then molded with 10 O M Pa to obtain a carbon brush.
  • Fig. 3 summarizes the characteristics of each car pump brush.
  • the integrated value of graphite particles having a particle size of 5 ⁇ m or less was 5%, and the particle size of graphite particles was 5%.
  • the car pump brush of Example 2 in which the integrated value of graphite particles of 100 ⁇ m or more is controlled to be a graphite bell particle filler of 10 ° / 0 is the same as the uncontrolled carbon brush according to Comparative Example 2.
  • the integrated value of the graphite particles having a particle size of 5 nm or less among the graphite particles was 3%, and the particle size of the graphite particles was 3%.
  • the present invention can provide a carbon brush having a significantly longer life than conventional products.

Landscapes

  • Motor Or Generator Current Collectors (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

L'invention concerne un premier balai de charbon comprenant une poudre de graphite servant de charge, présentant une courbe de distribution de diamètre particulaire, comme déterminée par la méthode de diffraction par laser, dans lequel une valeur intégrée du nombre de particules de graphite présentant un diamètre inférieur ou égal à 5 νm représente moins de 10 % des particules totales, de préférence moins de 5 %. L'invention concerne un second balai de charbon constitué du premier balai de charbon, dans lequel une valeur intégrée du nombre de particules de graphite présentant un diamètre particulaire supérieur à 100 νm représente moins de 10 %. L'invention concerne un troisième balai de charbon constitué du second balai de charbon, et dans lequel une valeur intégrée du nombre de particules de graphite présentant un diamètre particulaire compris entre 10 et 40 νm, représente plus de 60 %. L'invention concerne un quatrième balai de charbon constitué du troisième balai de charbon et dans lequel une valeur intégrée du nombre de particules de graphite présentant un diamètre compris entre 12 et 20 νm représente plus de 40 %.
PCT/JP2003/011366 2003-09-05 2003-09-05 Balai de charbon Ceased WO2005025034A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
PCT/JP2003/011366 WO2005025034A1 (fr) 2003-09-05 2003-09-05 Balai de charbon
CNA038270382A CN1839529A (zh) 2003-09-05 2003-09-05 碳刷
DE60325785T DE60325785D1 (de) 2003-09-05 2003-09-05 Kohlenstoffbürste
AT03818580T ATE420477T1 (de) 2003-09-05 2003-09-05 Kohlenstoffbürste
SI200331559T SI1662638T1 (sl) 2003-09-05 2003-09-05 Krtača iz ogljika
EP03818580A EP1662638B1 (fr) 2003-09-05 2003-09-05 Balai de charbon

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2003/011366 WO2005025034A1 (fr) 2003-09-05 2003-09-05 Balai de charbon

Publications (1)

Publication Number Publication Date
WO2005025034A1 true WO2005025034A1 (fr) 2005-03-17

Family

ID=34260141

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2003/011366 Ceased WO2005025034A1 (fr) 2003-09-05 2003-09-05 Balai de charbon

Country Status (6)

Country Link
EP (1) EP1662638B1 (fr)
CN (1) CN1839529A (fr)
AT (1) ATE420477T1 (fr)
DE (1) DE60325785D1 (fr)
SI (1) SI1662638T1 (fr)
WO (1) WO2005025034A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006013991A1 (fr) * 2004-08-02 2006-02-09 Asmo Co., Ltd. Balai de charbon et machine electrique rotative
WO2007073793A1 (fr) * 2005-12-24 2007-07-05 Pyongyang Technical Trading Centre Materiau naturel et souple a base de graphite et methode (procede) souple de fabrication et utilisation de ce materiau

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014116114A1 (de) 2014-11-05 2016-05-12 Schunk Kohlenstofftechnik Gmbh Mehrschicht-Kohlebürste und Herstellung einer solchen

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07213022A (ja) * 1993-12-28 1995-08-11 Mando Mach Corp 金属黒鉛質ブラシの製造方法
JP2001327127A (ja) * 2000-05-17 2001-11-22 Toshiba Ceramics Co Ltd 銅カーボン質ブラシおよびその製造方法
JP2002080922A (ja) * 2000-09-07 2002-03-22 Mitsubishi Materials Corp 耐摩耗性のすぐれたＣｕ−黒鉛系焼結材製摺動集電材
EP1333546A2 (fr) * 2002-01-30 2003-08-06 Tris, Inc. Balai en cuivre-graphite

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03270660A (ja) * 1990-03-16 1991-12-02 Mabuchi Motor Co Ltd 小型モータにおけるカーボン・ブラシとその製造方法
EP0713258B1 (fr) * 1994-04-08 2000-06-21 Sony Corporation Cellule electrolytique secondaire non aqueuse

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07213022A (ja) * 1993-12-28 1995-08-11 Mando Mach Corp 金属黒鉛質ブラシの製造方法
JP2001327127A (ja) * 2000-05-17 2001-11-22 Toshiba Ceramics Co Ltd 銅カーボン質ブラシおよびその製造方法
JP2002080922A (ja) * 2000-09-07 2002-03-22 Mitsubishi Materials Corp 耐摩耗性のすぐれたＣｕ−黒鉛系焼結材製摺動集電材
EP1333546A2 (fr) * 2002-01-30 2003-08-06 Tris, Inc. Balai en cuivre-graphite

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006013991A1 (fr) * 2004-08-02 2006-02-09 Asmo Co., Ltd. Balai de charbon et machine electrique rotative
US8035272B2 (en) 2004-08-02 2011-10-11 Asmo Co. Ltd. Carbon brush with raw graphite particles
WO2007073793A1 (fr) * 2005-12-24 2007-07-05 Pyongyang Technical Trading Centre Materiau naturel et souple a base de graphite et methode (procede) souple de fabrication et utilisation de ce materiau

Also Published As

Publication number Publication date
EP1662638A4 (fr) 2006-12-27
CN1839529A (zh) 2006-09-27
SI1662638T1 (sl) 2009-06-30
EP1662638A1 (fr) 2006-05-31
EP1662638B1 (fr) 2009-01-07
DE60325785D1 (de) 2009-02-26
ATE420477T1 (de) 2009-01-15

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