JPS5728545A - Brush circuit in dc commutator - Google Patents

Brush circuit in dc commutator

Info

Publication number
JPS5728545A
JPS5728545A JP10318080A JP10318080A JPS5728545A JP S5728545 A JPS5728545 A JP S5728545A JP 10318080 A JP10318080 A JP 10318080A JP 10318080 A JP10318080 A JP 10318080A JP S5728545 A JPS5728545 A JP S5728545A
Authority
JP
Japan
Prior art keywords
short
circuit current
brush
brushes
commutator
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.)
Pending
Application number
JP10318080A
Other languages
Japanese (ja)
Inventor
Zenhachi Oba
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP10318080A priority Critical patent/JPS5728545A/en
Publication of JPS5728545A publication Critical patent/JPS5728545A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K13/00—Structural associations of current collectors with motors or generators, e.g. brush mounting plates or connections to windings; Disposition of current collectors in motors or generators; Arrangements for improving commutation
    • H02K13/14—Circuit arrangements for improvement of commutation, e.g. by use of unidirectionally conductive elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Current Collectors (AREA)

Abstract

PURPOSE:To prevent the occurrence of sparks caused by short-circuit current without providing commutating poles, by a method wherein a brush section is formed by splitting it into two or more, and a rectifier is provided at the midway of a lead wire in the brush section in the direction blocking a short-circuit current by reactance voltage. CONSTITUTION:A brush section conventionally formed from one brush is formed by splitting it into two or more brushes 1, 2. The width of each brush 1, 2 is formed narrower than that of insulators 5 between commutator segments and connected so that at least either one of the brushes is always contacted with a commutator segment 6. Furthermore, a diode 7 is connected at the midway of the lead wire for brushes in the direction blocking a short-circuit current by reactance voltage as shown in a broken-line arrow. In this way, no short-circuit current will be generated even if no auxiliary poles are provided, and no-spark rectification can be performed.
JP10318080A 1980-07-29 1980-07-29 Brush circuit in dc commutator Pending JPS5728545A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10318080A JPS5728545A (en) 1980-07-29 1980-07-29 Brush circuit in dc commutator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10318080A JPS5728545A (en) 1980-07-29 1980-07-29 Brush circuit in dc commutator

Publications (1)

Publication Number Publication Date
JPS5728545A true JPS5728545A (en) 1982-02-16

Family

ID=14347302

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10318080A Pending JPS5728545A (en) 1980-07-29 1980-07-29 Brush circuit in dc commutator

Country Status (1)

Country Link
JP (1) JPS5728545A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6152138A (en) * 1984-08-20 1986-03-14 Matsushita Electric Ind Co Ltd Current collector for dc machine
WO1997031420A1 (en) * 1996-02-26 1997-08-28 Osami Matsumoto Spark-free commutator
JP2008508847A (en) * 2004-08-02 2008-03-21 ドルフィン・エレクトリック・ホールディングス・インク Commutator and method for rectifying current in a rotating electrical machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6152138A (en) * 1984-08-20 1986-03-14 Matsushita Electric Ind Co Ltd Current collector for dc machine
WO1997031420A1 (en) * 1996-02-26 1997-08-28 Osami Matsumoto Spark-free commutator
JP2008508847A (en) * 2004-08-02 2008-03-21 ドルフィン・エレクトリック・ホールディングス・インク Commutator and method for rectifying current in a rotating electrical machine

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