JPS5653558A - Brush action detector for electric rotary machine - Google Patents

Brush action detector for electric rotary machine

Info

Publication number
JPS5653558A
JPS5653558A JP12793079A JP12793079A JPS5653558A JP S5653558 A JPS5653558 A JP S5653558A JP 12793079 A JP12793079 A JP 12793079A JP 12793079 A JP12793079 A JP 12793079A JP S5653558 A JPS5653558 A JP S5653558A
Authority
JP
Japan
Prior art keywords
brush
wall
upper parts
brush holder
rotary machine
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
JP12793079A
Other languages
Japanese (ja)
Inventor
Takashi Abe
Shoji Mogi
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP12793079A priority Critical patent/JPS5653558A/en
Publication of JPS5653558A publication Critical patent/JPS5653558A/en
Pending 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
    • H01R39/58—Means structurally associated with the current collector for indicating condition thereof, e.g. for indicating brush wear

Landscapes

  • Motor Or Generator Current Collectors (AREA)

Abstract

PURPOSE:To grasp direct quantitatively the dynamic action of brush in a brush holder of an electric rotary machine by a method wherein pressure sensors are provided inside the brush holder respectively at the upper parts and the lower parts of the inner wall in the rotational direction of the current collecting part and at the upper parts of the inner wall in the antirotational direction. CONSTITUTION:In a commutating device pressing a brush 2 against the aliding face of a commutator 1 with pressing springs 7, pressure sensors 9a-9f are equipped at the proper inside portions of a brush holder 3. The equipped portions are defined as the upper parts 8a, 8b and the lower parts 8c, 8d of the inner wall in the rotational direction of the commutator 1, and the upper parts 8e, 8f of the inner wall in the antirotational direction. By this way, the dynamic action of the brush 2 in the brush holder 3 can be grasped direct quantitatively, chattering phenomenon, etc., can be detected and the most suitable design of the brush device conforming to the specification can be performed.
JP12793079A 1979-10-05 1979-10-05 Brush action detector for electric rotary machine Pending JPS5653558A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12793079A JPS5653558A (en) 1979-10-05 1979-10-05 Brush action detector for electric rotary machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12793079A JPS5653558A (en) 1979-10-05 1979-10-05 Brush action detector for electric rotary machine

Publications (1)

Publication Number Publication Date
JPS5653558A true JPS5653558A (en) 1981-05-13

Family

ID=14972145

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12793079A Pending JPS5653558A (en) 1979-10-05 1979-10-05 Brush action detector for electric rotary machine

Country Status (1)

Country Link
JP (1) JPS5653558A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4475143A (en) * 1983-01-10 1984-10-02 Rogers Corporation Decoupling capacitor and method of manufacture thereof
US4494169A (en) * 1983-11-14 1985-01-15 Rogers Corporation Decoupling capacitor and method of manufacture thereof
JPS61273956A (en) * 1985-02-21 1986-12-04 Nippon Foil Mfg Co Ltd Method for forming print original form

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4475143A (en) * 1983-01-10 1984-10-02 Rogers Corporation Decoupling capacitor and method of manufacture thereof
US4494169A (en) * 1983-11-14 1985-01-15 Rogers Corporation Decoupling capacitor and method of manufacture thereof
JPS61273956A (en) * 1985-02-21 1986-12-04 Nippon Foil Mfg Co Ltd Method for forming print original form

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