JPH0171971U - - Google Patents

Info

Publication number
JPH0171971U
JPH0171971U JP1988119743U JP11974388U JPH0171971U JP H0171971 U JPH0171971 U JP H0171971U JP 1988119743 U JP1988119743 U JP 1988119743U JP 11974388 U JP11974388 U JP 11974388U JP H0171971 U JPH0171971 U JP H0171971U
Authority
JP
Japan
Prior art keywords
magnet
casing
circumferentially
electric motor
magnets
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
JP1988119743U
Other languages
Japanese (ja)
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 filed Critical
Publication of JPH0171971U publication Critical patent/JPH0171971U/ja
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/17—Stator cores with permanent magnets

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)
  • Dc Machiner (AREA)
  • Motor Or Generator Frames (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は、本考案を具体化した分数馬力永久磁
石直流電動機の斜視図、第２図は、第１図の線
―に沿つた部分断面図、第３図は、第１図の線
―に沿つた断面図である。 符号の説明、２…エンドキヤツプ、３…ブラシ
装置、４…回転子、５…固定子組立体、６…軸受
、７…ブラシ、８…ブラシばね、９…端子、１０
…小径部分、１１…軸、１２…電機子、１３…整
流子、１４…管状ケーシング、１５…磁石、１６
…軸受、１７…端壁、１８…突起、１９…ケーシ
ング側壁、２０…軸方向端面、２１ａ，２１ｂ…
軸方向の縁、２２…ちよう形羽根、２３…Ｕ形ば
ね、２４…舌部、２５…腕、２６ａ，２６ｂ…軸
方向の縁、２７…ばねの端、２８…磁石の軸方向
端面。 1 is a perspective view of a fractional horsepower permanent magnet DC motor embodying the present invention, FIG. 2 is a partial sectional view taken along the line in FIG. 1, and FIG. 3 is a partial sectional view taken along the line in FIG. 1. FIG. Explanation of symbols, 2... End cap, 3... Brush device, 4... Rotor, 5... Stator assembly, 6... Bearing, 7... Brush, 8... Brush spring, 9... Terminal, 10
... Small diameter portion, 11 ... Shaft, 12 ... Armature, 13 ... Commutator, 14 ... Tubular casing, 15 ... Magnet, 16
...bearing, 17...end wall, 18...protrusion, 19...casing side wall, 20...axial end surface, 21a, 21b...
Axial edge, 22...Choice-shaped blade, 23...U-shaped spring, 24...tongue, 25...arm, 26a, 26b...axial edge, 27... end of spring, 28... axial end face of magnet.

Claims (1)

【実用新案登録請求の範囲】 (1) 少なくとも２個の永久磁石を支持する管状
ケーシングを備えた分数馬力永久磁石直流電動機
であつて、 前記磁石は１個のＵ形ばねで軸方向及び円周方
向に動かないように前記ケーシング内に保持され
ており、前記ばねは前記２個の磁石の隣接する軸
方向縁の間に配置されており、前記Ｕ形ばねの底
はケーシングに設けた止め具に引つ掛けられてお
り、前記Ｕ形ばねの各腕は磁石を円周方向に押す
ようにそれぞれの磁石の軸方向の縁に当たつてお
り、前記腕の各端は磁石を少なくとも１個の止め
具に当て軸方向に押し付けるようにそれぞれの磁
石の軸方向の端面に引つ掛けられていることを特
徴とする電動機。 (2) 前記止め具は、ケーシングの側壁から打ち
出した舌部から成ることを特徴とする請求項１に
記載の電動機。 (3) 前記磁石は、ケーシング内の１個またはそ
れ以上の止め具に円周方向に押し付けられている
ことを特徴とする請求項１または請求項２に記載
の電動機。 (4) 磁石が２個のＵ形ばねの間に円周方向には
さまれていることを特徴とする請求項１または請
求項２に記載の電動機。[Claims for Utility Model Registration] (1) A fractional horsepower permanent magnet DC motor having a tubular casing supporting at least two permanent magnets, the magnets being axially and circumferentially supported by one U-shaped spring. directional movement within the casing, the spring being disposed between adjacent axial edges of the two magnets, and the bottom of the U-shaped spring being secured to a stop provided in the casing. each arm of the U-shaped spring abuts an axial edge of a respective magnet to push the magnet circumferentially, and each end of the arm holds at least one magnet. An electric motor characterized in that the motor is hooked onto the axial end face of each magnet so as to be pressed against the stopper in the axial direction. (2) The electric motor according to claim 1, wherein the stopper comprises a tongue protruding from a side wall of the casing. 3. The motor of claim 1 or 2, wherein the magnet is circumferentially pressed against one or more stops in the casing. (4) The electric motor according to claim 1 or 2, wherein the magnet is circumferentially sandwiched between two U-shaped springs.
JP1988119743U 1987-09-16 1988-09-12 Pending JPH0171971U (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8721804A GB2209880B (en) 1987-09-16 1987-09-16 Magnet retainer in an electric motor

Publications (1)

Publication Number Publication Date
JPH0171971U true JPH0171971U (en) 1989-05-15

Family

ID=10623892

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988119743U Pending JPH0171971U (en) 1987-09-16 1988-09-12

Country Status (4)

Country Link
JP (1) JPH0171971U (en)
DE (1) DE8811786U1 (en)
GB (1) GB2209880B (en)
HK (1) HK131994A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013183556A (en) * 2012-03-02 2013-09-12 Kitashiba Electric Co Ltd Magnet fixing spring

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04131154U (en) * 1991-05-24 1992-12-02 株式会社三ツ葉電機製作所 Fixed structure of permanent magnet in motor
FR2700077B1 (en) * 1992-12-28 1995-04-28 Ecia Equip Composants Ind Auto Device for holding permanent magnets inducing an electric motor.
DE19652085A1 (en) 1996-12-14 1998-06-18 Mannesmann Vdo Ag Electric motor
DE10031254A1 (en) * 2000-06-27 2002-01-10 Bosch Gmbh Robert bow spring

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1583851A (en) * 1968-05-10 1969-12-05
DE7021061U (en) * 1970-06-05 1971-11-18 Siemens Ag ARRANGEMENT FOR FASTENING PERMANENT MAGNETS IN ELECTRIC MACHINES.
DE2342499A1 (en) * 1973-08-23 1975-03-06 Bosch Gmbh Robert HOLDING DEVICE FOR FIELD MAGNETS IN THE HOUSING OF ELECTRIC MACHINERY
DE3048337A1 (en) * 1980-12-20 1982-07-29 Robert Bosch Gmbh, 7000 Stuttgart ELECTRICAL MACHINE, IN PARTICULAR FOR TURNING DEVICES OF INTERNAL COMBUSTION ENGINES
DE3224414A1 (en) * 1982-06-30 1984-01-05 Siemens AG, 1000 Berlin und 8000 München STAND FOR A PERMANENTLY MAGNETIC ELECTRIC MACHINE AND METHOD FOR THE PRODUCTION THEREOF
JPS6079231U (en) * 1983-11-05 1985-06-01 三菱電機株式会社 Stator for magnetic rotating electric machines
CA1247686A (en) * 1984-03-07 1988-12-28 Nobuhiko Ogasawara Magneto d.c. motor having elastic magnet mounting retainers
FR2562734B1 (en) * 1984-04-05 1988-05-06 Ducellier & Cie STATOR FOR SMALL ELECTRIC MOTORS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013183556A (en) * 2012-03-02 2013-09-12 Kitashiba Electric Co Ltd Magnet fixing spring

Also Published As

Publication number Publication date
GB2209880B (en) 1991-11-06
HK131994A (en) 1994-12-02
GB2209880A (en) 1989-05-24
DE8811786U1 (en) 1989-01-12
GB8721804D0 (en) 1987-10-21

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