CN1037559C - Method of manufacturing rotor in magneto generator - Google Patents

Method of manufacturing rotor in magneto generator Download PDF

Info

Publication number
CN1037559C
CN1037559C CN94106914A CN94106914A CN1037559C CN 1037559 C CN1037559 C CN 1037559C CN 94106914 A CN94106914 A CN 94106914A CN 94106914 A CN94106914 A CN 94106914A CN 1037559 C CN1037559 C CN 1037559C
Authority
CN
China
Prior art keywords
yoke
connecting portion
axle sleeve
rotor
diapire
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.)
Expired - Lifetime
Application number
CN94106914A
Other languages
Chinese (zh)
Other versions
CN1100240A (en
Inventor
野末裕
新野善永
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.)
Mitsuba Corp
Original Assignee
Mitsuba Electric Manufacturing 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 Mitsuba Electric Manufacturing Co Ltd filed Critical Mitsuba Electric Manufacturing Co Ltd
Publication of CN1100240A publication Critical patent/CN1100240A/en
Application granted granted Critical
Publication of CN1037559C publication Critical patent/CN1037559C/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2786—Outer rotors
    • H02K1/2787—Outer rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/2789—Outer rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
    • H02K1/2791—Surface mounted magnets; Inset magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • H02K15/03—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/22—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos

Abstract

Method for manufacturing a rotor in a magneto-generator, in which the portion surrounding an opening (26) in the bottom wall (25) of a yoke (20) is subjected to an operation of inward bending in the axial direction so that a coupling portion (27) is pushed back, extending towards the side of the inner periphery of the yoke; next, the coupling portion (27) is plastically deformed so as to be pushed back outwards in the axial direction, from which it results that the curved portion (28) formed during the bending is reduced, and that the height (L1) of the coupling portion (27) is brought back to (L2) in the axial direction; internal grooves (29) are formed on the inner periphery of the coupling portion (27); external grooves of a bossing interact with these internal grooves (29) and a portion for crimping by deformation is formed on the front end of the bossing.

Description

Make the method for rotor of permanent-magnetic power generator
The present invention relates to a kind of method of making rotor of permanent-magnetic power generator, more particularly, relate to improvement to yoke and axle sleeve syndeton, it is used for for example making the rotor of permanent magnet generator effectively, and permanent magnet generator is used for for example motorcycle one class dilly, ship side motor, portable electric generator and similar device.
Usually, permanent magnet generator comprises a rotor, roughly equidistantly arranges one a group of magnet and a stator on the bowl-type yoke inner peripheral surface at it, wherein, and at one group of coil unit of the inboard equidistant placement of rotor yoke iron (it respectively constitutes by coiling on iron core).Described stator is fixed on engine ectosome or the analog, and described rotor links to each other with engine shaft.In such permanent magnet generator, by rotation rotor is rotated around stator by engine-driven rotating shaft, stator coil relative motion in the magnetic field of magnet thus is to excite electromotive force in the coil of the corresponding magnetic pole of stator.
As the rotor that is used for this permanent magnet generator, it comprises:
The axle sleeve of one substantial cylindrical, there is a flange its neighboring, in its cylindrical peripheral limit part external splines is arranged;
One yoke of bowl-type roughly has a substantial cylindrical coupling part around yoke diapire opening, and at the coupling part inner rim internal spline is arranged.
Interconnect by inside and outside spline, and described axle sleeve is linked to each other with the yoke coupling part, make described axle sleeve front end form fold and it is clamped on the yoke.
In addition, as disclosed among the open No.62-163549 of Japan Patent, extensively adopted a kind of method of making rotor of permanent-magnetic power generator, wherein, yoke is carried out buckling work, it makes yoke link to each other with axle sleeve without spline, but forms rivet hole on yoke diapire and axle sleeve flange, by rivet axle sleeve is fixed in the yoke diapire.
Yet, in that being linked to each other with yoke, makes in the method for rotor of permanent-magnetic power generator by axle sleeve, and in order to increase bonding strength, it is very long that the effective length of yoke spline is established, and also makes yoke coupling part lengthening.For fear of with the interference of stator coil, axially extended in the yoke chamber according to elongated connectors, and in yoke, form useless space.
In addition, in the method for this manufacturing rotor of permanent-magnetic power generator, axle sleeve is fixed on the yoke by rivet, and this job requirements forms rivet hole and makes the rivet interlock, and this has just increased manufacturing cost.
The purpose of this invention is to provide a kind of method of making rotor of permanent-magnetic power generator, wherein,, the height of connecting portion is reduced, and guarantee bonding strength simultaneously even yoke is connected in axle sleeve by spline.
According to the present invention, the method for making rotor of permanent-magnetic power generator comprises:
One roughly becomes columniform axle sleeve, have around flange, and have external splines in cylindrical peripheral limit part;
One roughly becomes the yoke of bowl-type, and around a diapire opening one substantial cylindrical connecting portion is arranged, and periphery has internal spline within it;
Interconnect by inside and outside spline described axle sleeve and yoke coupling part joined, make described axle sleeve front end form fold and it is clamped on the yoke, it is characterized in that:
Described method comprises the steps:
In the yoke diapire, be formed centrally opening, be used for the insertion of axle sleeve;
Carrying out buckling work around the part of yoke diapire opening, open circumferential is axially inwardly stretched out at yoke, form the substantial cylindrical connecting portion;
Axially push back connecting portion outwardly at yoke, and make the connecting portion plastic deformation, the axial length of connecting portion from yoke bottom wall outer end face to its open end shortened;
Form spline at the connecting portion inner peripheral surface;
Make in the method for rotor of permanent-magnetic power generator in the invention described above,, yoke diapire open circumferential portion is inwardly stretched into by buckling work, and formation substantial cylindrical connecting portion, then, make counter the pushing away of connecting portion that be subjected to buckling work and plastic deformation, so that its axial length shortens.On the connecting portion inner peripheral surface that shortens, form internal spline then, yet in this case, the spline axial length does not reduce and can increase on the contrary.So even yoke and axle sleeve interconnect by spline, the spline bonding strength is also sufficiently reliable.
On the other hand, connecting portion self axial length that inwardly stretches out from the yoke bottom surface has shortened, and by the shortening of connecting portion length, and makes the height setting of yoke and axle sleeve connecting portion get lower.
Fig. 1 (a), 1 (b), 1 (c) and 1 (d) have shown the master operation of an embodiment of method of rotor of permanent-magnetic power generator constructed in accordance;
Fig. 1 is the front cross sectional view by the rotor of permanent-magnetic power generator of this method manufacturing.
In Fig. 1 (a)-1 (d) and embodiment shown in Figure 2, comprise that by the rotor 10 of the inventive method manufacturing an axle sleeve 11, one rotating shaft (not shown)s connect thereon, axle sleeve 11 is a substantial cylindrical, has the annular flange flange 12 that is formed on the end periphery.In the tubular hollow space of axle sleeve 11, form a taper inner peripheral surface 13, join with taper outer peripheral face with rotating shaft, make along with leaving flange 12, the hollow space internal diameter is more and more littler.Form a recess 14 with one heart in flange 12 outer faces and its.
The peripheral shape of axle sleeve 11 make its flange 12 sides half form a major diameter part 15, second half forms a small diameter portion 16.Have external splines on major diameter part 15 peripheries, it can be meshed with the internal spline of yoke side on whole circumference and whole length, and this will describe below.Boundary between major diameter part 15 and small diameter portion 16 forms a chucking standing part 17 by a fold.
On the other hand, rotor 10 has a yoke 20, its be one roughly the circle bowl-shape.One group of magnet 22 is fixed in the precalculated position at yoke 20 sidewalls 21 inner peripheral surfaces at circumferencial direction, and it is fixing by this way, makes by shelf 23 plastic and that comprise magnet 22 and is pressed into yoke 20, then, is fixed by the gripping part 24 of bending.
At the diapire 25 of yoke 20, have the hole 26 of a circular, its diameter is slightly smaller than the profile of axle sleeve 11 major diameter parts 15, forms one in the hole 26 at the yoke 20 axial connecting portions 27 that inwardly stretch out.
Describe the method for making connecting portion 27 with reference to Fig. 1 (a)-1 (b) below, it is a principal character part of the present invention.
At first,, open a hole 26, be used to insert axle sleeve at yoke 20 diapires 25 middle parts referring to Fig. 1 (a).Then, the circumferential part of the opening 26 of yoke 20 diapires 25 carry out as bending operation to the in-flanges operation.And shown in Fig. 1 (b), hole 26 peripheries axially inwardly stretch out at yoke 20, thus, make connecting portion 27 be configured as a short cylindrical shape roughly.
At this moment, form a bend 28 to the in-flanges operation in the part that connects connecting portion 27 and diapire 25.Because it is by being shaped to the in-flanges operation, so the wall thickness t of sweep 28 1Be equal to or less than the wall thickness t of yoke diapire 25 0
In addition, set the axial length L of coupling part 27 1, make the length S on inner peripheral surface plane 1Be equal to or greater than for guaranteeing that predetermined spline connects the necessary spline effective length of desirable strength S 0, planar section length S 1Be total length L 1Deduct sweep 28 convex surface axial length R 1Obtain.
Then, (not shown) on the anchor clamps on the flat board is fixed in diapire 25 outer faces, and axially to the inner face of external pressure coupling part 27, shown in Fig. 1 (c), and it is pushed back, thereby reduced the sweep 28 of connecting portion 27, produce a plastic deformation thus.
So when connecting portion 27 is pushed back, just form this state: connecting portion 27 inner faces are to the axial distance L of diapire 25 outer faces 2Original length L than connecting portion 27 1Shortened.
Yet, the axial length S on connecting portion 27 inner peripheral surface planes 2, both effective length S of internal spline 0Be equal to or greater than original length S 1
This be because, when the distance L that makes connecting portion 27 2Be shorter than original length L 1The time, the axial length R of bend 28 1Foreshorten to a shorter length R 2From R 1Be reduced to R 2The time, the wall material plastic flowing of this part makes the wall thickness t of sweep 28 equally 2Than its original wall thickness t 1Become thicker.In this case, wall thickness t 2Greater than wall thickness t 0
Then, shown in Fig. 1 (d), on connecting portion 27 inner peripheral surfaces, form internal spline 29.The effective length S of internal spline 29 0Be chosen to be a length that can keep the predetermined bonding strength of spline.In the state of Fig. 1 (d), because connecting portion 27 inner peripheral surface effective length S 2(corresponding to the length on plane) is equal to or greater than the original length S on plane 1So,, internal spline effective length S 0Can be in a predetermined value reliably.
By the way say, sweep 28, both the wall thickness of the connecting portion between connecting portion 27 and the diapire 25 was from t 1Thicken to t 2, and the mechanical strength of bend 28 is not in fact reduced, but increased.
In the yoke of so making 20, insert the coupling part 27 that is in yoke diapire 25 forward from yoke 20 outsides with axle sleeve 11 small diameter portion 16.At this moment, external splines 18 on the axle sleeve 11 major diameter parts 15 and internal spline 29 engagements of yoke on 27 interior weeks of 20 connecting portions connect and form a spline.
Axle sleeve 11 is being inserted under the situation of outer surface that the flange 12 of yokes 20 connecting portions 27 inner rims until axle sleeve 11 be close to yoke 20 diapires 25, the internal spline 29 of the external splines 18 of axle sleeve 11 sides and yoke 20 sides firmly is connected mutually to be pressed into state.
Then, the shoulder portion between axle sleeve 11 neighboring major diameter parts 15 and small diameter portion 16 forms the chucking operation of fold, is formed with the chucking standing part 17 of a fold thus in axle sleeve 11 neighborings.Diapire 25 is clipped between fold gripping part 17 and the flange part 12, axle sleeve 11 and yoke 20 is fixed on prevent the blocking that skids off.
Adopt above-mentioned layout, just can constitute rotor 10, wherein, axle sleeve 11 and the 25 concentric settings of yoke 20 diapires, and, axle sleeve 11 and yoke 20 are interconnected and unitary rotation at circumferencial direction and axially fixing reliably.Then, the unit that constitutes the coil 31 of stator 30 is contained in the yoke 20.
In the above-described embodiments, connecting portion 27 is pushed back and plastic deformation, and dwindle sweep 28, make connecting portion 27 inner faces more near yoke diapire 25, and make coiling unit 30 be set in a lower level with respect to the position (referring to G among Fig. 2) of diapire 25.
In addition, when adopting the yoke of same size, because the length of yoke 20 connecting portions 27 is from L 1Foreshorten to L 2So,, the cumulative thickness of coil can increase this amount, increases the power output of rotor therefrom.
On the other hand, though connecting portion 27 axial lengths have shortened the length S on interior all planes 2Can guarantee to form the effective length S of internal spline thereon 0So axle sleeve 11 can be fixed on the yoke 20 reliably by the spline connection.So, to compare by the situation that rivet is fixed on yoke with axle sleeve, it manufactures instinct and reduces.
As mentioned above, according to the present invention, yoke and axle sleeve height can be set lowlyer, and can fully guarantee the effective length of spline to help to reduce manufacturing cost.

Claims (5)

1. method of making rotor of permanent-magnetic power generator, described rotor comprises:
The axle sleeve of one substantial cylindrical, its have one around flange, and external splines is arranged in cylindrical peripheral portion;
One roughly bowl-shape yoke has a substantial cylindrical connecting portion around its diapire opening, and side face has internal spline within it;
Be coupled to each other by inside and outside spline described axle sleeve linked to each other with the yoke connecting portion, tighten and be fixed on the yoke by making described axle sleeve leading section form fold,
It is characterized in that: described method comprises the steps:
Open a hole at yoke diapire center, be used for the insertion of axle sleeve;
Carrying out buckling work around the part in yoke diapire hole, the peripheral part that makes the hole yoke axially in to stretching out the connecting portion of formation substantial cylindrical;
Make the connecting portion plastic deformation, it is axially outwards pushed back at yoke, so that the axial length of connecting portion from yoke bottom wall outer end face to its open end shortens;
On the connecting portion inner peripheral surface, form spline.
2. the method for manufacturing rotor of permanent-magnetic power generator as claimed in claim 1 is characterized in that:
Described yoke diapire outer surface forms a plane.
3. the method for manufacturing rotor of permanent-magnetic power generator as claimed in claim 1 is characterized in that:
Buckling work around described yoke diapire opening portion is finished by plunging.
4. the method for manufacturing rotor of permanent-magnetic power generator as claimed in claim 1 is characterized in that:
Only after buckling work, the length on described connecting portion inner peripheral surface plane equals the length on plane at least.
5. the method for manufacturing rotor of permanent-magnetic power generator as claimed in claim 1 is characterized in that:
Only after buckling work, the bend wall thickness between connecting portion and the yoke diapire is greater than the wall thickness of described bend.
CN94106914A 1993-05-31 1994-05-31 Method of manufacturing rotor in magneto generator Expired - Lifetime CN1037559C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP5152905A JP3003748B2 (en) 1993-05-31 1993-05-31 Method for manufacturing rotor of magnet generator
JP152905/93 1993-05-31

Publications (2)

Publication Number Publication Date
CN1100240A CN1100240A (en) 1995-03-15
CN1037559C true CN1037559C (en) 1998-02-25

Family

ID=15550705

Family Applications (1)

Application Number Title Priority Date Filing Date
CN94106914A Expired - Lifetime CN1037559C (en) 1993-05-31 1994-05-31 Method of manufacturing rotor in magneto generator

Country Status (6)

Country Link
JP (1) JP3003748B2 (en)
KR (1) KR100271733B1 (en)
CN (1) CN1037559C (en)
FR (1) FR2706096B1 (en)
IT (1) IT1266845B1 (en)
TW (1) TW255068B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3281245B2 (en) * 1995-12-11 2002-05-13 株式会社ミツバ Magnet generator rotor
JP4555774B2 (en) * 2003-03-31 2010-10-06 ヤマハ発動機株式会社 Rotating electric machine and electric vehicle
US7589675B2 (en) 2006-05-19 2009-09-15 Industrial Technology Research Institute Broadband antenna
DE102009041478A1 (en) 2009-09-14 2011-03-31 Magna Presstec Ag Component, in particular handlebar for a vehicle
DE202009016416U1 (en) * 2009-12-02 2010-04-22 Fischer & Kaufmann Gmbh & Co. Kg bearing element
CN101951204A (en) * 2010-03-02 2011-01-19 高宗大 Magnetic converting engine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5734758A (en) * 1980-08-07 1982-02-25 Mitsuba Denki Seisakusho:Kk Rotor for magnet generator
JPS61102152A (en) * 1984-10-23 1986-05-20 Shinano Totsuki Kk Production of rotor and stator for rotary electric machine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2493196A1 (en) * 1980-10-31 1982-05-07 Valeo METHOD FOR THE ASSEMBLY OF TWO CONCENTRIC PARTS, AND A SET OF TWO CONCENTRIC PARTS SO ASSEMBLED
JPS5736568A (en) * 1981-02-18 1982-02-27 Mitsuba Denki Seisakusho:Kk Rotor of magnet generator
JPH084849B2 (en) * 1987-04-15 1996-01-24 株式会社日立製作所 Burring machine
JP3135553B2 (en) * 1990-09-01 2001-02-19 日本電産株式会社 Spindle motor
JPH0813398B2 (en) * 1991-02-12 1996-02-14 アイダエンジニアリング株式会社 Flange member plastic working method
JPH0595659A (en) * 1991-09-30 1993-04-16 Toshiba Lighting & Technol Corp Brushless motor and speed control circuit thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5734758A (en) * 1980-08-07 1982-02-25 Mitsuba Denki Seisakusho:Kk Rotor for magnet generator
JPS61102152A (en) * 1984-10-23 1986-05-20 Shinano Totsuki Kk Production of rotor and stator for rotary electric machine

Also Published As

Publication number Publication date
FR2706096B1 (en) 1995-11-17
KR100271733B1 (en) 2000-11-15
FR2706096A1 (en) 1994-12-09
CN1100240A (en) 1995-03-15
IT1266845B1 (en) 1997-01-21
TW255068B (en) 1995-08-21
KR940027257A (en) 1994-12-10
ITTO940439A1 (en) 1995-11-27
JPH06343251A (en) 1994-12-13
JP3003748B2 (en) 2000-01-31
ITTO940439A0 (en) 1994-05-27

Similar Documents

Publication Publication Date Title
US7982356B2 (en) Electric motor and method for manufacturing an electric motor for a motor vehicle actuator drive
US8729760B2 (en) Rotor of electric motor having structure for attaching magnet securely to outer circumferential surface of rotor core and manufacturing method thereof
EP1885046B1 (en) Generator/motor mounted on engine
US6177747B1 (en) Vehicle AC generator and method of manufacturing the same
CN102593971B (en) Stator for electric rotating machine and method of manufacturing the same
JP4692428B2 (en) Rotor for rotating electrical machine for vehicle and manufacturing method thereof
JP2001218429A5 (en)
JP2651135B2 (en) Rotor shaft for AC generator
EP1469579A1 (en) Electric rotating machine and winding method for its stator
GB2067850A (en) Rotor for a rotary electric machine and a method of manufacturing the same
WO2001067579A1 (en) Permanent magnet motor flux rings
CN1037559C (en) Method of manufacturing rotor in magneto generator
US5505547A (en) Support structure for power steering drive and manufacturing method thereof
US20090261685A1 (en) Segment-core type stator for inner-rotor type rotary electric machines and an improved method for manufacturing the stator
JPH09331657A (en) Manufacture of yoke of magnet-type motor
CN1111846A (en) A rotor of a magneto generator
WO1990010335A1 (en) Stator assembly for a non-static cogging brushless dc motor and method of fabricating the same
US11888349B2 (en) Stator assembly of hairpin winding motor and manufacturing method thereof
EP1385257A2 (en) Method of making a stator for an electric machine
JP2004357466A (en) Linear motor
US20210175763A1 (en) Stator assembly of hairpin winding motor and manufacturing method thereof
CN1542271A (en) Housing assembly structure of starter motor for vehicle
US20160126789A1 (en) Permanent magnet motor
CN103915919B (en) For the stator of electric rotating machine and the method that manufactures described stator
CN107078583A (en) The manufacture method of rotating machinery and rotating machinery

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C53 Correction of patent of invention or patent application
COR Change of bibliographic data

Free format text: CORRECT: PATENTEE; FROM: MITSUBA ELECTRIC MANUFACTURING PRESIDENT CO., LTD. TO: CO., LTD. MITSUBA

CP01 Change in the name or title of a patent holder

Patentee after: Mitsuba Electric Mfg. Co., Ltd.

Patentee before: Mitsuba Electric Manufacturing Co., Ltd.

C17 Cessation of patent right
CX01 Expiry of patent term

Expiration termination date: 20140531

Granted publication date: 19980225