GB2017421A - DC-Micromotor - Google Patents

DC-Micromotor

Info

Publication number
GB2017421A
GB2017421A GB7908802A GB7908802A GB2017421A GB 2017421 A GB2017421 A GB 2017421A GB 7908802 A GB7908802 A GB 7908802A GB 7908802 A GB7908802 A GB 7908802A GB 2017421 A GB2017421 A GB 2017421A
Authority
GB
United Kingdom
Prior art keywords
support member
coil arrangement
conductor parts
micromotor
adjacant
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.)
Granted
Application number
GB7908802A
Other versions
GB2017421B (en
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.)
Portescap SA
Original Assignee
Portescap SA
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 Portescap SA filed Critical Portescap SA
Publication of GB2017421A publication Critical patent/GB2017421A/en
Application granted granted Critical
Publication of GB2017421B publication Critical patent/GB2017421B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
    • H02K23/66—Structural association with auxiliary electric devices influencing the characteristic of, or controlling, the machine, e.g. with impedances or switches
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
    • G01P3/486—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by photo-electric detectors
    • 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
    • H01R39/04—Commutators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
    • H02K11/21—Devices for sensing speed or position, or actuated thereby
    • H02K11/22—Optical devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
    • H02K23/56—Motors or generators having iron cores separated from armature winding

Abstract

A dc-micromotor comprises an armature including a disc shaped support member (2) and a cylindrical coil arrangement (1); the support member (2) bears a plurality of radially extending conductor parts (3'') which are connected at one end to a respective commutator segment (3') and at the other end to a respective connection (5) of the coil arrangement (1); and the conductor parts (3'') have along the support member a surface visible from outside the support member, which surface has a higher light reflecting power than the adjacant surface of the support member. <IMAGE>
GB7908802A 1978-03-13 1979-03-13 Dc-micromotor Expired GB2017421B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2810821A DE2810821C3 (en) 1978-03-13 1978-03-13 DC miniature motor

Publications (2)

Publication Number Publication Date
GB2017421A true GB2017421A (en) 1979-10-03
GB2017421B GB2017421B (en) 1982-11-10

Family

ID=6034290

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7908802A Expired GB2017421B (en) 1978-03-13 1979-03-13 Dc-micromotor

Country Status (5)

Country Link
JP (1) JPS54139008A (en)
CH (1) CH630496A5 (en)
DE (1) DE2810821C3 (en)
FR (1) FR2420240A1 (en)
GB (1) GB2017421B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3607289C2 (en) * 1985-03-07 1997-01-30 Papst Motoren Gmbh & Co Kg DC motor with a cylindrical air gap, in particular external rotor motor, with an ironless winding
US5006765A (en) * 1986-03-06 1991-04-09 Papst-Motoren Gmbh & Co. Kg DC motor with coreless coil installation
DE29515381U1 (en) * 1995-09-26 1995-11-30 Interelectric Ag Brush cover for DC machines
ATE190774T1 (en) * 1995-09-26 2000-04-15 Interelectric Ag DC MOTOR

Also Published As

Publication number Publication date
JPS54139008A (en) 1979-10-29
FR2420240A1 (en) 1979-10-12
DE2810821A1 (en) 1979-09-20
CH630496A5 (en) 1982-06-15
GB2017421B (en) 1982-11-10
DE2810821C3 (en) 1980-11-20
FR2420240B3 (en) 1981-12-24
DE2810821B2 (en) 1980-03-27

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19940313