JPS56107772A - Dc motor - Google Patents

Dc motor

Info

Publication number
JPS56107772A
JPS56107772A JP819880A JP819880A JPS56107772A JP S56107772 A JPS56107772 A JP S56107772A JP 819880 A JP819880 A JP 819880A JP 819880 A JP819880 A JP 819880A JP S56107772 A JPS56107772 A JP S56107772A
Authority
JP
Japan
Prior art keywords
armature
outer peripheral
magnet
yoke
bottom wall
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
JP819880A
Other languages
Japanese (ja)
Other versions
JPS638704B2 (en
Inventor
Toshio Ishikawa
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.)
Denso Corp
Original Assignee
NipponDenso 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 NipponDenso Co Ltd filed Critical NipponDenso Co Ltd
Priority to JP819880A priority Critical patent/JPS56107772A/en
Publication of JPS56107772A publication Critical patent/JPS56107772A/en
Publication of JPS638704B2 publication Critical patent/JPS638704B2/ja
Granted 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
    • H02K23/56—Motors or generators having iron cores separated from armature winding

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Dc Machiner (AREA)

Abstract

PURPOSE:To preferably dissipate the heat of the armature of the DC motor and to reduce the size of the motor by providing a brush at the inside of the cup-shaped coreless armature confronted with the outer peripheral wall of a magnet and connecting the rotor to the outer surface of the bottom wall. CONSTITUTION:The magnet 1 having more than four poles formed at equal interval is secured to the outer peripheral surface of the inside yoke 2 of inner cylindrical shape, and the cup-shaped coreless armature 13 confronted with the outer peripheral wall 15b through an air gap with the magnet 1 is rotatably held at bearings 4a, 4b provided on the center piece 3 inside the inner yoke 2. The brush 8 in the brush holder 7 provided axially of the center piece 3 is slidably brought into contact with the flat commutator 16 provided inside the bottom wall 15a of the armature 13, a projection 17 for mounting directly the rotor such as blower or a fan or the like is integrally formed with the outer surface of the bottom wall 15a of the armature 13, and the ring-shaped outer yoke 20 is provided outside the outer peripheral wall 15b of the armature 13.
JP819880A 1980-01-25 1980-01-25 Dc motor Granted JPS56107772A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP819880A JPS56107772A (en) 1980-01-25 1980-01-25 Dc motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP819880A JPS56107772A (en) 1980-01-25 1980-01-25 Dc motor

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP19376486A Division JPS6289452A (en) 1986-08-19 1986-08-19 Motor fan

Publications (2)

Publication Number Publication Date
JPS56107772A true JPS56107772A (en) 1981-08-26
JPS638704B2 JPS638704B2 (en) 1988-02-24

Family

ID=11686565

Family Applications (1)

Application Number Title Priority Date Filing Date
JP819880A Granted JPS56107772A (en) 1980-01-25 1980-01-25 Dc motor

Country Status (1)

Country Link
JP (1) JPS56107772A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6162562U (en) * 1984-09-28 1986-04-26
EP0188801A2 (en) * 1984-12-22 1986-07-30 PAPST-MOTOREN GmbH & Co. KG Small electric motor with a single-piece bearing support
EP1176694A1 (en) * 1999-04-12 2002-01-30 Namiki Seimitsu Houseki Kabushiki Kaisha Coil for small-sized motor and small-sized flat motor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51121107A (en) * 1975-04-16 1976-10-22 Matsushita Electric Works Ltd Coreless motor
JPS51134715U (en) * 1975-04-23 1976-10-30
JPS5375408A (en) * 1976-12-17 1978-07-04 Shibaura Eng Works Ltd Externallrotorrtype motor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51121107A (en) * 1975-04-16 1976-10-22 Matsushita Electric Works Ltd Coreless motor
JPS51134715U (en) * 1975-04-23 1976-10-30
JPS5375408A (en) * 1976-12-17 1978-07-04 Shibaura Eng Works Ltd Externallrotorrtype motor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6162562U (en) * 1984-09-28 1986-04-26
JPH0314941Y2 (en) * 1984-09-28 1991-04-02
EP0188801A2 (en) * 1984-12-22 1986-07-30 PAPST-MOTOREN GmbH & Co. KG Small electric motor with a single-piece bearing support
EP1176694A1 (en) * 1999-04-12 2002-01-30 Namiki Seimitsu Houseki Kabushiki Kaisha Coil for small-sized motor and small-sized flat motor
EP1176694A4 (en) * 1999-04-12 2005-06-15 Namiki Precision Jewel Co Ltd Coil for small-sized motor and small-sized flat motor

Also Published As

Publication number Publication date
JPS638704B2 (en) 1988-02-24

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