WO2007123171A1 - 磁石式発電機の回転子及び磁石式発電機並びに磁石式発電機の回転子の製造方法及び磁石式発電機の回転子の製造装置 - Google Patents
磁石式発電機の回転子及び磁石式発電機並びに磁石式発電機の回転子の製造方法及び磁石式発電機の回転子の製造装置 Download PDFInfo
- Publication number
- WO2007123171A1 WO2007123171A1 PCT/JP2007/058501 JP2007058501W WO2007123171A1 WO 2007123171 A1 WO2007123171 A1 WO 2007123171A1 JP 2007058501 W JP2007058501 W JP 2007058501W WO 2007123171 A1 WO2007123171 A1 WO 2007123171A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- magnet
- yoke
- protection ring
- rotor
- generator
- Prior art date
Links
Classifications
-
- 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
- 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
Definitions
- Magnet generator rotor Magnet generator rotor, magnet generator, magnet generator rotor manufacturing method, and magnet generator rotor manufacturing apparatus
- the present invention relates to a magnet generator that generates electric energy by rotating a magnet, a rotor of a magnet generator, a method of manufacturing a rotor of a magnet generator, and rotation of a magnet generator
- the present invention relates to an apparatus for manufacturing a child.
- a magnet-type generator is configured to generate an induced electromotive force in a coil by rotating a rotor in which a plurality of magnets are arranged around a coil of an electromotive force.
- a magnet generator is used, for example, by attaching a rotor to a rotating shaft of a vehicle engine and fixing the generated electrons to the outer shell of the engine to convert the rotational motion of the engine into electric energy.
- a plurality of magnets are fixed to the inner periphery of a bottomed cylindrical yoke with an adhesive. Furthermore, a magnet protection ring for protecting the magnet is fixed to the inner periphery of the magnet with an adhesive.
- the rotor manufacturing apparatus includes a press-fitting jig that holds a magnet and a magnet protection ring, a movable jig that is movable with respect to the press-fitting jig, and that fits on the outer periphery of the magnet, and a yoke that is inserted into the magnet.
- One having a pressing jig is known.
- Patent Document 1 Japanese Patent Laid-Open No. 2000-37054
- the opening end portion of the yoke is chamfered as a guide for press-fitting the magnet into the yoke, a gap is increased between the opening end portion of the yoke and the magnet, so that the magnet holding strength is ensured.
- This requires a lot of adhesive.
- the magnet and the magnet protection ring can be positioned. The magnet may be displaced with respect to the yoke, or the magnet protection ring may be displaced.
- the present invention has been made in view of such circumstances, and mainly provides a method for easily manufacturing a magnet generator, a magnet generator that can be easily manufactured, and a rotor for the magnet generator. With a purpose.
- a first invention according to the present invention includes a bottomed yoke in which one end of a cylinder is closed at an end portion, a magnet disposed on an inner periphery of the yoke, and a cylindrical portion covering the inner periphery of the magnet
- the present invention relates to a rotor of a magnet generator having a magnet protection ring having a magnet.
- the magnet protection ring has one end abutting against the end of the magnet on the opening end side of the yoke, and the other end fixed to the yoke.
- the first support portion is formed in a state where the magnet is pressed into the yoke while the diameter of the magnet protection ring is reduced, and the cylindrical portion of the magnet protection ring that covers the inner periphery of the magnet is formed. Support to support the magnet by extruding a part radially outward to form the second support A structure is formed.
- the support structure using the magnet guard ring prevents the magnet from moving.
- the magnets are arranged in a circumferential direction, and the magnets are arranged between two adjacent magnets. A part of the protective ring protrudes.
- the movement of the magnet in the circumferential direction is restricted by a part of the magnet protection ring bulging between the magnets spaced apart in the circumferential direction.
- a third invention according to the present invention is a magnet generator having a rotor of the above-described magnet generator and an electron generator having a coil disposed on the inner periphery side of the magnet of the rotor. It is.
- this magnet generator when the rotor rotates, an induced electromotive force is generated in the coil, and the rotation of the rotor is converted into electric energy.
- a magnet is disposed on the inner periphery of a bottomed yoke with one end of a cylinder closed at an end, and a magnet protection ring is attached so as to cover the inner periphery of the magnet
- the present invention relates to a method of manufacturing a rotor of a magnet generator.
- the manufacturing method includes a step of placing the magnet protection ring on the fixing jig while positioning the magnet protection ring with a positioning pin disposed on the fixing jig, and a step of placing the magnet on the magnet protection ring based on the positioning pin.
- the inner diameter of the magnet protection ring is reduced to protect the inner peripheral surface of the magnet, and the magnet is protruded between the magnets so as not to move in the circumferential direction.
- the magnet is pressed in the direction of diameter reduction with a movable jig.
- the magnet protection ring is used to support the end of the magnet in the axial direction by expanding a part of the magnet protection ring.
- a magnet is disposed on the inner periphery of a bottomed yoke with one end of a cylinder closed at an end, and a magnet protection ring is attached so as to cover the inner periphery of the magnet
- the present invention relates to a magnet generator rotor manufacturing apparatus.
- the manufacturing apparatus includes the magnet protection ring and the magnet.
- a fixing jig configured to be able to insert a positioning pin capable of positioning the magnet protection ring and the magnet, and a holding jig that holds the yoke.
- a movable jig provided so as to be movable with respect to the tool and having a tapered surface that presses the magnet radially inward from one end toward the fixed jig to the other end connected to the yoke;
- a yoke and a magnet are driven into the magnet and press-fitted with the positioning pin positioning the magnet and the magnet protection ring. At this time, the yoke is driven while gradually pressing the magnet with the tapered surface of the movable jig.
- the magnet press-fitted into the inner periphery of the yoke can be positioned and supported by plastically deforming the magnet protection ring, an adhesive is used as in the prior art, or the magnet is supported. There is no need to install a separate member. Therefore, the number of parts of the rotor can be reduced, and the working efficiency and yield at the time of manufacturing the rotor can be improved.
- FIG. 1 is a cross-sectional view showing a configuration of a magnet generator provided with a rotor according to an embodiment of the present invention.
- FIG. 2 is a view of the rotor as viewed from the opening end side of the yoke.
- FIG. 3 is an exploded view for explaining the manufacturing process of the rotor.
- FIG. 4 is a cross-sectional view in which components of a rotor are attached to a manufacturing apparatus.
- FIG. 5 is a sectional view in which a movable jig is lowered and a magnet is press-fitted into a yoke.
- FIG. 6 is a diagram illustrating a process of pushing the magnet protection ring radially outward.
- an electron generator 3 is arranged inside a rotor 2.
- the generator 3 has a configuration in which an insulator 5 is mounted on a core 4 in which iron plates are laminated, and then a coil 6 is mounted.
- the rotor 2 has a bottomed cylindrical yoke 10. One end of the cylindrical portion 11 of the yoke 10 is closed by an end portion 12, and a magnet 13 (permanent magnet) and a magnet protection ring 14 are disposed on the inner periphery of the cylindrical portion 11 of the yoke 10.
- a magnet 13 permanent magnet
- a magnet protection ring 14 are disposed on the inner periphery of the cylindrical portion 11 of the yoke 10.
- the end portion 12 of the yoke 10 has a central portion recessed inward, and a hole 21 is formed in the center thereof. Furthermore, a plurality of positioning holes 22 are arranged at equal intervals on the same circumference with the hole 21 as the center.
- a plurality of bosses 23 for fixing the magnet protection ring 14 are provided on the inner surface of the end portion 12.
- a boss member 25 is also inserted into the central hole 21 by the outer surface side force of the end portion 12. The boss member 25 is firmly fixed to the yoke 10 by bringing the flange 26 into contact with the outer surface of the end portion 12 and caulking on the inner surface side.
- the boss member 25 extends along the axis of the yoke 10, and a tapered hole 27 is formed at the center so as to be able to receive the rotation shaft of the engine.
- a step 28 is formed to adjust the inertia.
- the magnet 13 is not locked to the step 28 and is disposed closer to the opening end 10A than the step 29.
- the magnets 13 are arranged with a gap 30 in the circumferential direction, and are magnetized so that two adjacent magnets 13 have different magnetic poles. Note that FIG. 2 shows a part of the magnet protection ring 14 that is broken, so that the force with which the magnet 13 is exposed is actually covered with the magnet protection ring 14.
- the magnet protection ring 14 has a substantially cylindrical tube portion 31 extending substantially along the magnet 13, and one end portion on the opening end 10 A side of the yoke 10 on the axial end side is radially outward.
- the flange 32 is formed by being bent.
- the flange portion 32 is in surface contact with the end portion 13A on the opening end side of the magnet 13, and the outer peripheral end of the flange portion 32 is in contact with the inner periphery of the yoke 10.
- the flange portion 32 has a directional force notch 33 in a position corresponding to the gap 30 of the magnet 13 from the outer peripheral side to the inner peripheral side. Numbers are formed.
- the other end portion of the cylindrical portion 31 in the axial direction and facing the end portion 12 of the yoke 10 is an annular portion 34 that extends radially inward and extends substantially integrally.
- the annular portion 34 is formed with a plurality of notches 35 so as to avoid the positioning holes 22 of the end portion 12.
- a plurality of nut holes 36 are formed so as to sandwich the notch 35 in the circumferential direction.
- the nut hole 36 is formed in accordance with the position where the boss 23 of the end portion 12 is formed, and has a diameter that allows the boss 23 to be inserted. As shown in FIG. 1, the inner peripheral edge 34A of the annular portion 34 is bent to increase its rigidity.
- the cylindrical portion 31 forms a first support portion 38A extending along the inner peripheral surface of the magnet 13 and a second support portion 38B protruding outward in the radial direction at the other end portion 13B of the magnet 13. ing.
- the first support portion 38A sandwiches the magnet 13 together with the yoke 10 to prevent the magnet 13 from moving in the radial direction.
- the first support portion 38A has a protruding portion 37 that protrudes so that a portion in the circumferential direction protrudes into the gap 30 of the magnet 13.
- the protrusion 37 abuts on the circumferential end of the magnet 13 to prevent the magnet 13 from moving.
- the second support portion 38B extends along the chamfered portion 13C of the magnet 13, hits a corner formed by the chamfered portion 13C and the other end portion 13B, and extends substantially along the axial direction therefrom. Yes.
- the manufacturing apparatus 51 is disposed so as to cover the fixing jig 52, the slider 53 that holds the opening end 10A of the yoke 10 downward, and the opening end 10A of the yoke 10. And a movable jig 54 that moves up and down (approaching and separating) with respect to the fixed jig 52 together with the slider 53.
- a cylindrical portion 62 serving as a lower mold is fixed on a base 61 with bolts.
- a guide hole 64 is inserted into the central hole 63 of the cylindrical part 62 so as to be slidable up and down.
- the guide portion 64 is biased upward by a coil spring 65, and the tip end of the guide portion 64 protrudes from the upper surface 62A of the cylindrical portion 62 in a no-load state. Since the flange 62B formed on the cylindrical portion 62 and the flange 64A of the guide portion 64 are engaged, the guide portion 64 does not come out of the cylindrical portion 62.
- a plurality of guide posts 66 are erected on the upper surface 62A of the cylindrical portion 62.
- an accommodation groove 67 as an accommodation portion is formed in an annular shape on the upper surface 62A side.
- Receiving groove The radial width of 67 is large enough to allow the magnet 13 and the magnet protection ring 14 to be placed, and a plurality of positioning pins 68 are inserted into the lower surface 67A at predetermined intervals in the circumferential direction.
- an annular holding portion 69 is disposed outside the cylindrical portion 62.
- An annular gap 70 is formed between the holding portion 69 and the cylindrical portion 62.
- the movable jig 54 has a cylindrical shape that can be inserted into the gap 70 between the cylindrical portion 62 and the holding portion 69 of the fixed jig 52, and a flange portion 71 projects from the outer periphery of the upper end. It is a mold for driving.
- the flange portion 17 of the movable jig 54 contacts the upper surface of the holding portion 69 and functions as a stopper when the movable jig 54 is lowered.
- the outer peripheral surface 72 of the movable jig 54 is in sliding contact with the inner peripheral surface of the holding portion 69.
- the inner peripheral surface of the movable jig 54 is a taper surface 73 whose diameter increases from the upper end portion (the other end portion) connected to the yoke 10 toward the lower end portion (one end portion).
- the tapered surface 73 has an inner diameter approximately equal to the outer diameter of the magnet 13 disposed on the fixing jig 52 at the lower end, and an inner diameter approximately equal to the inner periphery of the yoke 10 at the upper end.
- the inner diameter at the upper end of the taper surface 73 may be equal to or smaller than the inner diameter of the opening end 10A of the yoke 10.
- the magnet protection ring 14 When manufacturing the rotor 2, the magnet protection ring 14 is placed in the receiving groove 67 in a state where the mold is opened first. The magnet protection ring 14 is arranged with the flange portion 32 facing downward, and positioning in the circumferential direction is performed by passing the positioning pin 68 through the notch 33. Further, the magnet 13 is inserted into the outer periphery of the cylindrical portion 31 of the magnet protection ring 14, and the magnets 13 are arranged along the positioning pins 68. In the initial state, the outer diameter of the magnet protection ring 14 is larger than the outer diameter after assembly. For this reason, the outer periphery of the magnet 13 is larger than the inner periphery of the yoke 10.
- the yoke 10 is fixed to the slider 53 after passing the guide post 66 through the positioning hole 22 of the end portion 12.
- the guide post 66 is also inserted into the insertion hole 75 of the slider 53.
- the movable jig 54 is attached to the open end 10A side of the yoke 10.
- the yoke 10 and the movable jig 54 move toward the fixed jig 52.
- the movable jig 54 enters between the holding portion 69 and the cylindrical portion 62 while pressing the magnet 13 inward with the tapered surface 73.
- the magnet protection ring 14 is pressed against the cylindrical portion 62 by the magnet 13 and gradually reduces its diameter.
- a protruding portion 37 is formed by protruding so that an excess portion of the magnet protection ring 14 escapes into the gap 30 between the magnets 13.
- the pusher 80 introduced into the assembly of the rotor 2 is protruded radially outward.
- the pusher 80 may be a mold that is divided into a plurality of segments in the circumferential direction.
- the pusher 80 is provided with a protrusion 81 facing outward in the circumferential direction.
- the protrusion 81 has an inclined surface 82 that matches the shape of the chamfered portion 13C of the magnet 13, and the outer peripheral surface 83 of the protrusion 81 has an arc shape parallel to the axis.
- the length of the protrusion 81 in the axial direction is shorter than the distance from the magnet 13 to the inner surface of the end portion 12 of the yoke 10.
- the pusher 80 When the pusher 80 is slid and the inclined surface 82 of the projection 81 is brought into contact with the chamfered portion 13C of the magnet 13, the magnet protection ring 14 is plastically deformed while being pushed outward.
- the second support portion 38B is formed on the magnet protection ring 14, and the magnet 13 is supported on the magnet protection ring 14 also from the end portion 13B side.
- the second support portion 38 has a bent shape along the chamfered portion 13C, and this bent shape is supported by a bent shape formed by the outer peripheral surface 83 of the protrusion 81 of the pusher 80. A sufficient strength to support the magnet 13 is ensured.
- the rotor 2 When the magnet generator 1 is used, the rotor 2 is attached to, for example, the rotation shaft of the engine, and is fixed to the engine case or the like so that the electron generator 3 is disposed in the rotor 2.
- the rotor 2 rotates together with the rotating shaft, and the magnet 13 rotates around the coil 6 of the electron generator 3.
- an induced electromotive force is generated in the coil 6, so that the electrical energy can be taken out by connecting the winding forming the coin 6 to a battery or the like.
- the magnet 13 is supported by being sandwiched in the radial direction between the magnet protection ring 14 and the yoke 10 when the yoke 10 is driven.
- the magnet protection ring 14 protrudes into the gap 30 of the magnet 13 to form the first support portion 38A, and the movement in the circumferential direction is restricted.
- the magnet protection ring is press-fitted inside the magnet while the magnet is lifted from the end side with the positioning pin as in the conventional case, it is necessary to additionally provide a hole for inserting the positioning pin in the end part.
- the number of processing steps and the number of parts of the rotor can be reduced.
- the magnet protection ring 14 is plastically deformed to form the second support portion 38, and the second support portion 38 and the flange portion 32 are supported so as to sandwich the magnet 13 therebetween. There is no need to insert another member for supporting the magnet 13 into the yoke 10, and the number of parts can be reduced. Further, in the support portions 38A and 38B thus formed, it is not necessary to lock the magnet 13 to the step 28 on the yoke 10 side.
- the manufacturing apparatus 51 of the rotor 2 is configured to gradually push the magnet 13 and the magnet protection ring 14 in the diameter reducing direction by the tapered surface 73 of the movable jig 54, the yoke 10 is directly driven into the magnet 13.
- the yoke 10 can be driven in a state where the diameter of the magnet protection ring 14 is reduced to some extent by the tapered surface 73. Therefore, the yoke 10 connected to the movable jig 54 can be easily and reliably driven into the outer periphery of the magnet 13 for press-fitting.
- the magnet protection ring 14 and the magnet 13 can be easily positioned by passing the notch 33 of the magnet protection ring 14 through the positioning pin 68 or by placing the magnet 13 between the positioning pins 68. Can prevent displacement during press-fitting.
- the direction in which a part of the magnet protection ring 14 is expanded radially outward is not limited to the embodiment, and other known processing directions can be used.
- Various methods can be used for fixing the magnet protection ring 14 to the end portion 12 such as adhesion, curl caulking, and overhanging the magnet protection ring 14 against the end portion 12.
- the upward and downward direction of the embodiment can be changed to an arbitrary direction such as a horizontal direction.
- the magnet press-fitted into the inner periphery of the yoke can be positioned and supported by plastically deforming the magnet protection ring.
- the number of parts of the rotor can be reduced, and work efficiency and yield at the time of manufacturing the rotor can be improved.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008512143A JPWO2007123171A1 (ja) | 2006-04-19 | 2007-04-19 | 磁石式発電機の回転子及び磁石式発電機並びに磁石式発電機の回転子の製造方法及び磁石式発電機の回転子の製造装置 |
BRPI0711261-0A BRPI0711261A2 (pt) | 2006-04-19 | 2007-04-19 | rotor para gerador do tipo de imã, método para fabricar gerador do tipo de ìmã e rotor para gerador do tipo de ìmã, e aparelho para fabricar rotor para gerador do tipo de ìmã |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006115405 | 2006-04-19 | ||
JP2006-115405 | 2006-04-19 |
Publications (1)
Publication Number | Publication Date |
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WO2007123171A1 true WO2007123171A1 (ja) | 2007-11-01 |
Family
ID=38625072
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2007/058501 WO2007123171A1 (ja) | 2006-04-19 | 2007-04-19 | 磁石式発電機の回転子及び磁石式発電機並びに磁石式発電機の回転子の製造方法及び磁石式発電機の回転子の製造装置 |
Country Status (3)
Country | Link |
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JP (1) | JPWO2007123171A1 (ja) |
BR (1) | BRPI0711261A2 (ja) |
WO (1) | WO2007123171A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019087456A1 (ja) * | 2017-11-02 | 2019-05-09 | 株式会社ミツバ | アウターロータ型回転電機 |
CN114142692A (zh) * | 2021-11-30 | 2022-03-04 | 哈尔滨电机厂有限责任公司 | 一种水轮发电机两段式磁轭安装的工艺方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61121748A (ja) * | 1984-11-17 | 1986-06-09 | Mitsuba Denki Seisakusho:Kk | 永久磁石回転機およびその磁石固定方法 |
JPH1141842A (ja) * | 1997-07-22 | 1999-02-12 | Mitsuba Corp | 回転電機のマグネット固定方法 |
-
2007
- 2007-04-19 BR BRPI0711261-0A patent/BRPI0711261A2/pt not_active IP Right Cessation
- 2007-04-19 WO PCT/JP2007/058501 patent/WO2007123171A1/ja active Application Filing
- 2007-04-19 JP JP2008512143A patent/JPWO2007123171A1/ja active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61121748A (ja) * | 1984-11-17 | 1986-06-09 | Mitsuba Denki Seisakusho:Kk | 永久磁石回転機およびその磁石固定方法 |
JPH1141842A (ja) * | 1997-07-22 | 1999-02-12 | Mitsuba Corp | 回転電機のマグネット固定方法 |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019087456A1 (ja) * | 2017-11-02 | 2019-05-09 | 株式会社ミツバ | アウターロータ型回転電機 |
WO2019087350A1 (ja) * | 2017-11-02 | 2019-05-09 | 株式会社ミツバ | アウターロータ型回転電機 |
JPWO2019087456A1 (ja) * | 2017-11-02 | 2019-11-14 | 株式会社ミツバ | アウターロータ型回転電機 |
EP3706289A4 (en) * | 2017-11-02 | 2021-08-25 | Mitsuba Corporation | ELECTRIC LATHE WITH EXTERNAL ROTOR |
CN114142692A (zh) * | 2021-11-30 | 2022-03-04 | 哈尔滨电机厂有限责任公司 | 一种水轮发电机两段式磁轭安装的工艺方法 |
CN114142692B (zh) * | 2021-11-30 | 2024-04-09 | 哈尔滨电机厂有限责任公司 | 一种水轮发电机两段式磁轭安装的工艺方法 |
Also Published As
Publication number | Publication date |
---|---|
BRPI0711261A2 (pt) | 2011-08-30 |
JPWO2007123171A1 (ja) | 2009-09-03 |
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