FR2377723A1 - Miniature low power DC electric motor - has bearing support by acting as heat sink and having spring allowing thermal expansion - Google Patents

Miniature low power DC electric motor - has bearing support by acting as heat sink and having spring allowing thermal expansion

Info

Publication number
FR2377723A1
FR2377723A1 FR7700677A FR7700677A FR2377723A1 FR 2377723 A1 FR2377723 A1 FR 2377723A1 FR 7700677 A FR7700677 A FR 7700677A FR 7700677 A FR7700677 A FR 7700677A FR 2377723 A1 FR2377723 A1 FR 2377723A1
Authority
FR
France
Prior art keywords
low power
motor
acting
electric motor
heat sink
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
FR7700677A
Other languages
French (fr)
Other versions
FR2377723B3 (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.)
Ducellier et Cie
Original Assignee
Ducellier et Cie
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 Ducellier et Cie filed Critical Ducellier et Cie
Priority to FR7700677A priority Critical patent/FR2377723A1/en
Publication of FR2377723A1 publication Critical patent/FR2377723A1/en
Application granted granted Critical
Publication of FR2377723B3 publication Critical patent/FR2377723B3/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/167—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings
    • H02K5/1672—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings radially supporting the rotary shaft at both ends of the rotor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C27/00—Elastic or yielding bearings or bearing supports, for exclusively rotary movement
    • F16C27/02—Sliding-contact bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2380/00—Electrical apparatus
    • F16C2380/26—Dynamo-electric machines or combinations therewith, e.g. electro-motors and generators

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Motor Or Generator Frames (AREA)
  • Dc Machiner (AREA)

Abstract

A miniature low power DC motor is esp. for use in vehicles and in general household powered appliances. The motor design provides constant centralisation of the rotor with respect to the pole pieces and minimises friction effects due to heating of the motor under load. The rotor shaft bearings (1) are held in place by a single 'S' shaped spring metal support (3) which takes up any off-centering that occurs. The centre section of the 'S'(s) is expanded to hold the bearing case which itself is cogged (10) to mate with the support. The support is held within the motor casing by a pin at each extremity of the 'S'.
FR7700677A 1977-01-12 1977-01-12 Miniature low power DC electric motor - has bearing support by acting as heat sink and having spring allowing thermal expansion Granted FR2377723A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7700677A FR2377723A1 (en) 1977-01-12 1977-01-12 Miniature low power DC electric motor - has bearing support by acting as heat sink and having spring allowing thermal expansion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7700677A FR2377723A1 (en) 1977-01-12 1977-01-12 Miniature low power DC electric motor - has bearing support by acting as heat sink and having spring allowing thermal expansion

Publications (2)

Publication Number Publication Date
FR2377723A1 true FR2377723A1 (en) 1978-08-11
FR2377723B3 FR2377723B3 (en) 1979-09-14

Family

ID=9185376

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7700677A Granted FR2377723A1 (en) 1977-01-12 1977-01-12 Miniature low power DC electric motor - has bearing support by acting as heat sink and having spring allowing thermal expansion

Country Status (1)

Country Link
FR (1) FR2377723A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995000998A1 (en) * 1993-06-24 1995-01-05 Itt Automotive Europe Gmbh Heat-protected motor housing with metallic casing and plastic lining
WO2003081750A1 (en) * 2002-03-27 2003-10-02 Valeo Equipements Electriques Moteur Alternator for a motor vehicle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995000998A1 (en) * 1993-06-24 1995-01-05 Itt Automotive Europe Gmbh Heat-protected motor housing with metallic casing and plastic lining
US5731646A (en) * 1993-06-24 1998-03-24 Itt Automotive Europe Gmbh Heat-protected motor housing with metal casing and plastic plate
WO2003081750A1 (en) * 2002-03-27 2003-10-02 Valeo Equipements Electriques Moteur Alternator for a motor vehicle
FR2837995A1 (en) * 2002-03-27 2003-10-03 Valeo Equip Electr Moteur ALTERNATOR FOR MOTOR VEHICLE

Also Published As

Publication number Publication date
FR2377723B3 (en) 1979-09-14

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Legal Events

Date Code Title Description
ST Notification of lapse