WO2002017462A1 - Moteur et rotor destine a ce moteur - Google Patents

Moteur et rotor destine a ce moteur Download PDF

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Publication number
WO2002017462A1
WO2002017462A1 PCT/JP2001/001824 JP0101824W WO0217462A1 WO 2002017462 A1 WO2002017462 A1 WO 2002017462A1 JP 0101824 W JP0101824 W JP 0101824W WO 0217462 A1 WO0217462 A1 WO 0217462A1
Authority
WO
WIPO (PCT)
Prior art keywords
mouth
adhesive
permanent magnets
motor
permanent magnet
Prior art date
Application number
PCT/JP2001/001824
Other languages
English (en)
Japanese (ja)
Inventor
Hideki Nakashima
Kousuke Haraga
Akinobu Mori
Takanori Komatsu
Original Assignee
Mitsubishi Denki Kabushiki Kaisha
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 Mitsubishi Denki Kabushiki Kaisha filed Critical Mitsubishi Denki Kabushiki Kaisha
Priority to TW090107005A priority Critical patent/TWI227587B/zh
Publication of WO2002017462A1 publication Critical patent/WO2002017462A1/fr

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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
    • H02K1/2706—Inner rotors
    • H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
    • H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
    • H02K1/278—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

Definitions

  • the present invention relates to a motor using a permanent magnet for a rotor
  • FIG. 15 is a configuration diagram showing a configuration of a mouth and a mouth of a conventional motor and a car.
  • 1 is a permanent magnet.
  • Reference numeral 2 denotes a mouth-to-mouth yoke (15 denotes a thermosetting prepreg tape, and permanent magnets 1 are arranged on the thermosetting prepreg tape 15.
  • the permanent magnets 1 arranged in a row are placed so that the permanent magnets 1 can be arranged without gaps around the outer periphery of the mouth yoke 2 when the mouth yoke 2 is wound with the heat-curable pre-prepared tape 15. Is placed.
  • FIG. 16 is a perspective view of a rotor of a conventional motor.
  • the rotor-yoke 2 shown in FIG. 16 has a segmented neodymium sintered magnet (Nd-Fe-B) bonded in series with 10 pieces per pole.
  • the diameter of the mouth yoke 2 is 200 to 500 mm, and the length is 200 to 50 O mm.
  • the temperature of the bonded portion between the yoke 2 and the magnet changes from 140 ° C to + 100 ° C depending on the installation environment and the heat generated during operation.
  • the different direction of the magnet is the direction perpendicular to the bonding surface
  • the direction perpendicular to the opposite direction has a negative coefficient of linear expansion ⁇ Such a large mouth-to-night-to-yoke 2 provided in the motor for the hoisting machine for the elevator. If there is no gap between the adjacent magnets, a large thermal stress is generated due to the temperature change due to the difference in the expansion coefficient of the yoke (steel), the magnet, and the adhesive. Peeling occurs with the magnet or the magnet breaks.
  • FIG. 16 the same or corresponding parts as those in the conventional example shown in FIG. 15 are denoted by the same reference numerals, and the description thereof will be omitted, and the parts different from FIG. 15 will be described.
  • the permanent magnets 1 are arranged without gaps on the outer periphery of the yoke 2 and the temperature change due to the installation environment of the mode.
  • the temperature change due to the frequency of startup of the magnet causes large thermal stress at the joint between the mouth and the permanent yoke and the permanent magnet, causing the permanent magnet to peel off the permanent magnet and breaking the permanent magnet There was a problem.
  • the present invention has been made in order to solve such a problem, and suppresses thermal stress generated between the mouth and the yoke and the permanent magnet, and separates the low and the yoke from the permanent magnet.
  • the purpose of the present invention is to obtain a mouth and a mouth using the mouth and the mouth that can prevent the occurrence of cracks in the permanent magnet.
  • a motor according to the present invention includes a mouth having a plurality of poles and a gap provided between permanent magnets adjacent to the poles.
  • a motor having a plurality of poles and a gap provided for a predetermined number of permanent magnets. Further, in the motor according to the present invention, a gap between adjacent permanent magnets is filled with an adhesive containing beads.
  • the space between adjacent poles is filled with an adhesive containing beads.
  • the adhesive is a nitrile rubber-modified acryl-based or epoxy-based two-part room-temperature-curable adhesive.
  • the beads have a diameter of 0.1 to 0.3 mm.
  • the beads are made of polyethylene or silicone rubber.
  • the amount of beads added is 1 to 10%.
  • the present invention relates to a silicon steel plate having laminated ceramics, and a permanent magnet bonded with a nitrile rubber modified acryl-based adhesive.
  • the low-performance resin is made of iron, and the permanent magnet is bonded with a nitrile rubber-modified acryl-based adhesive. Attachment of permanent magnets to the row is performed by a jig that can simultaneously attach multiple permanent magnets.
  • a prepreg tape obtained by impregnating a glass fiber with an ultraviolet curable resin is wound around an outer periphery of a mouth to which a permanent magnet is attached.
  • a gap is provided between permanent magnets adjacent to the poles.
  • FIG. 1 is a perspective view of a rotor included in a motor according to a first embodiment of the present invention.
  • FIG. 2 is a cross-sectional view of the row and column of the module of Embodiment 1 of the present invention.
  • FIG. 3 is a cross-sectional view of the mouth of the module of Example 2 of the present invention.
  • FIG. 4 is a cross-sectional view of the mouth of the motor according to the third embodiment of the present invention.
  • FIG. 5 is a sectional view of the motor of Embodiment 4 of the present invention, taken through the mouth.
  • FIG. 6 is a sectional view of a rotor included in a motor of Embodiment 5 of the present invention.
  • FIG. 7 is a cross-sectional view of the mouth of the module of Embodiment 6 of the present invention.
  • FIG. 8 is a sectional view of a rotor included in a motor of Embodiment 7 of the present invention.
  • FIG. 9 is a first conceptual diagram illustrating a method of manufacturing a rotor included in a motor according to a seventh embodiment of the present invention.
  • FIG. 10 is a second conceptual diagram illustrating a method for manufacturing a motor according to Example 7 of the present invention.
  • FIG. 11 is a third conceptual diagram for explaining the manufacturing method of the present invention according to Embodiment 7 of the present invention.
  • FIG. 12 is a cross-sectional view of the motor of Embodiment 8 of the present invention, taken through the mouth.
  • FIG. 13 is a cross-sectional view of a row and column of a motor and a column of a ninth embodiment of the present invention. It is.
  • FIG. 14 is a cross-sectional view of the row and column of the module of Embodiment 10 of the present invention.
  • FIG. 15 is a configuration diagram showing a configuration of a mouth and a mouth provided in a conventional motor and a car.
  • FIG. 16 is a perspective view of the mouth of a conventional motor. BEST MODE FOR CARRYING OUT THE INVENTION
  • FIG. 1 is a perspective view of the mouth of the module of Embodiment 1 of the present invention.
  • 1 is a permanent magnet.
  • Numeral 2 is a rotor-to-mouth yoke.
  • the permanent magnet 1 is provided on the outer peripheral surface of the raw yoke 2.
  • the permanent magnet 1 is bonded to the raw yoke 2 using, for example, an adhesive.
  • the gap 3 is a gap between adjacent permanent magnets 1.
  • the gap 3 is provided between the permanent magnets 1 adjacent to each other in the axial direction of the rotation shaft of the low yoke 2.
  • the width of the gap 3 is, for example, 140 from the curing temperature of the adhesive. It is larger than the dimensional difference between the heat shrinkage of the steel yoke 2 and the permanent magnet 1 when it goes down to C.
  • the thermal expansion coefficient of the permanent magnet 1 is smaller than the thermal expansion coefficient of the rotor yoke 2, and the heat shrinkage of the permanent magnet 1 is smaller than the heat shrinkage of the rotor yoke 2.
  • the temperature can be reduced.
  • the compressive force acting on the permanent magnet 1 can be suppressed. If the permanent magnet 1 is provided without a gap, a large compressive force acts on the permanent magnet 1 due to a decrease in temperature.
  • FIG. 2 is a cross-sectional view of the motor of the present embodiment taken along a row.
  • reference numeral 4 denotes a one-component heat-curable adhesive.
  • FIG. 2 the same or corresponding parts as in FIG. 1 are denoted by the same reference numerals, and the description thereof is omitted, and the parts different from FIG. 1 are described.
  • a one-component heat-curing adhesive 4 as the adhesive for bonding the permanent magnet 1 and the raw yoke 2
  • the permanent magnets 1 are arranged side by side with the opening yoke 2 without any gap, and are obtained.
  • a heat cycle test at 140 ° C. to + 100 ° C., a thermal stress was generated between the permanent magnet 1 and the mouth yoke 2 and the peeling occurred.
  • the bonding between the permanent magnet 1 and the opening yoke 2 using the one-component heat-curable adhesive 4 was performed at 120 ° C., which is the curing temperature of the adhesive.
  • the temperature is reduced from 140 ° C to + 100 ° C. Even if a temperature change of ° C occurs, thermal stress is reduced, and a highly reliable mouth without peeling or cracking can be obtained.
  • the bonding with the one-component heat-curable adhesive 4 ′ is performed at 120 ° C., which is the curing temperature of the adhesive. At that time, a compression force acts on the permanent magnet 1 already.
  • the motor of this embodiment is used, for example, for a hoisting machine for an elevator.
  • FIG. 3 is a sectional view of a rotor included in the motor of the present embodiment.
  • reference numeral 5 denotes a two-liquid room temperature-curable adhesive.
  • the two-liquid room temperature curing adhesive 5 includes an acryl-based or epoxy-based adhesive.
  • the bonding between the permanent magnet 1 and the opening yoke 2 using the two-liquid room temperature curing adhesive 5 was performed at room temperature.
  • the temperature is reduced from 140 ° C to + 10 ° C. Even if a temperature change of 0 ° C occurs, the thermal stress is reduced, and a highly reliable mouth without peeling or cracking can be obtained.
  • the use of the two-component room-temperature-curable adhesive 5 can reduce the gap 3 between the permanent magnets 4 as compared with the case where the one-component heat-curable adhesive 4 is used.
  • the use of the two-part room temperature curing adhesive 5 makes the heating process In other words, energy can be saved during manufacturing, the manufacturing process can be streamlined and simplified, and costs can be reduced.
  • FIG. 3 the same or corresponding parts as those in the first embodiment shown in FIG. 2 are denoted by the same reference numerals, and the description thereof will be omitted, and the parts different from FIG. 2 will be described.
  • FIG. 4 is a cross-sectional view of the rotor of the motor of this embodiment.
  • a predetermined number of permanent magnets 1 are brought into close contact with each other, and the closely spaced predetermined number of permanent magnets 1 are used as one block to provide a gap 3 between adjacent blocks.
  • a block in which the plurality of permanent magnets 1 are closely contacted a block in which a plurality of permanent magnets 1 adjacent in the serial direction, that is, in the axial direction of the rotation axis of the yoke 2 is considered.
  • a plurality of permanent magnets 1 can be simultaneously attached to the row and yoke 2 for each block, thereby simplifying the manufacturing process of the motor.
  • the manufacturing time of the motor can be shortened, and the cost can be reduced.
  • FIG. 4 the same or corresponding parts as those in the first embodiment shown in FIG. The description is omitted by attaching, and portions different from FIG. 2 are described.
  • FIG. 5 is a cross-sectional view of the mouth of the module of the present embodiment.
  • reference numeral 6 denotes a bead having a predetermined size. It is made of resin or rubber.
  • the thickness of the bonding layer between the permanent magnet 1 and the rotor yoke 2 can be kept constant, and dimension management becomes easy.
  • FIG. 5 parts that are the same as or correspond to those in Example 1 shown in FIG. 2 are denoted by the same reference numerals, description thereof is omitted, and parts different from FIG. 2 are described.
  • FIG. 6 is a cross-sectional view of the mouth of the module of the present embodiment.
  • the permanent magnet 1 and the raw material yoke 2 are bonded together with the adhesive to which beads 6 of a predetermined size are added, and the adjacent permanent magnets 1 are also bonded. .
  • FIG. 6 parts that are the same as or correspond to those in Example 4 shown in FIG. 5 are given the same reference numerals, and description thereof is omitted. Parts that are different from FIG. 5 are described.
  • the permanent magnet 1 and the mouth-and-one-yoke 2 are bonded to each other by the adhesive to which the beads 6 of a predetermined size are added, so that the adhesive layer between the permanent magnet 1 and the mouth-and-one-yoke 2 is formed.
  • the thickness can be kept constant, and dimensional control becomes easy.
  • the thickness of the adhesive layer between the permanent magnets 1 adjacent to each other is fixed to the diameter of the beads 6. Can be a value.
  • the permanent magnets 1 adjacent to each other are bonded with an adhesive to which beads 6 having predetermined dimensions are added. This eliminates the need to intentionally provide the gap 3 between the permanent magnets 1, and facilitates the mounting and dimensional control of the permanent magnets 1.
  • the size of the beads 6 added to the adhesive is such that the bonding strength between the opening and closing yoke 2 and the permanent magnet 1 is maximized, and the gap 3 between the permanent magnets 1 as described in the first embodiment is provided. 0 enough to secure. 1 to 0. 3 mm are suitable c of the bead 6 diameter is 0 if. less than 1 mm, peel strength and impact bonding strength decreases. If the diameter of the beads 6 is larger than 0.3 mm, problems such as a decrease in the shear adhesive strength, a decrease in the magnetic properties, and an inability to secure a clearance with the stay are caused.
  • the material of the beads 6 is suitably soft, and polyethylene beads and silicone rubber beads are suitable.
  • a hard material such as ceramic, glass, or metal is used as the material of the beads 6, the difference in the amount of shrinkage between the mouth 2 and the permanent magnet 1 when the temperature drops is reduced.
  • the adhesive cannot be absorbed by the adhesive layer between the permanent magnets 1, and the heat cycle test causes the yoke 2 and the permanent magnet 1 to be peeled off or the permanent magnet 1 to be broken.
  • the material of the beads 6 softer, the difference in the amount of shrinkage between the yoke 2 and the permanent magnet 1 can be absorbed by the adhesive layer between the permanent magnets 1 when the temperature drops. It is possible to prevent the mouthpiece 2 from being separated from the permanent magnet 1 and to prevent the permanent magnet 1 from cracking.
  • any one of polyethylene beads and silicone rubber beads may be used.
  • the adhesive is a heat-curable adhesive, it is better to use silicone rubber beads. This is because when polyethylene beads are used, the beads 6 are melted by heat generated during heating.
  • the amount of beads 6 to be added is between permanent magnet 1 and low It is necessary to use an amount such that the thickness of the adhesive layer between the magnet 1 and the magnet 1 is stable. If the bead 6 is excessively added to the adhesive, there is a problem that the adhesive strength is reduced. For example, if a certain adhesive is used to bond between the adjacent permanent magnets 1 and between the permanent magnets 1 and the mouth yoke 2, the mouth yoke 2 to which the permanent magnets 1 are bonded becomes Even in the cycle test, there is no peeling between the adjacent permanent magnets 1 and between the permanent magnet 1 and the opening and closing yoke 2, and no cracking occurs in the permanent magnets 1. I was able to get a high mouth-to-mouth ratio.
  • the adhesive at this time was a nitrile rubber-modified acryl-based adhesive that was a two-liquid, room-temperature, short-curing adhesive containing 5% of polyethylene beads with an average particle diameter of 0.1 mm. Adhesion between the adjacent permanent magnets 1 and between the permanent magnets 1 and the opening and closing yoke 2 could be performed without any particular consciousness without providing the gap 3. In this test, ten permanent magnets 1 were bonded in series to one pole in the axial direction of the rotating shaft of the yoke 2 over the mouth.
  • FIG. 7 is a cross-sectional view of the motor of the present embodiment taken along a row.
  • the motor shown in FIG. 7 is an adhesive to which beads 6 having a predetermined size are added, and is bonded between adjacent permanent magnets 1 and between the permanent magnets 1 and the rotor yoke 2.
  • the permanent magnet 1 can be more firmly fixed to the mouth yoke 2 by bonding between the adjacent poles in the radial direction with an adhesive to which beads 6 of a predetermined size are added. it can.
  • FIG. 8 is a cross-sectional view of the mouth of the motor of the present embodiment.
  • reference numeral 7 denotes a pre-preda tape, which is made by impregnating glass fiber with an ultraviolet-curable resin, semi-cured to have an adhesive property, and cured when irradiated with ultraviolet light. is there.
  • Such a prepreg tape 7 is bonded to the permanent magnets 1 adjacent to each other and the permanent magnets 1 and the yoke 2 and then wrapped around the outer periphery of the permanent magnets 1 and cured by irradiating ultraviolet rays. It is to let.
  • UV-curable prepreg tape eliminates the need for a conventional heat-curable prepreg tape, eliminates the need for a heating step for curing, simplifies the process, and reduces costs. Down is possible.
  • a two-liquid room-temperature-curable nitrile rubber-modified acryl-based adhesive and an ultraviolet-curable prepreg tape are used to fix the permanent magnets 1 adjacent to each other and to fix the permanent magnets 1 to the rotor yoke 2.
  • a two-liquid room temperature-curable nitrile rubber-modified acryl-based adhesive, and an ultraviolet-curable prepreg tape are used.
  • the use of heat-curable adhesive, heat-curable inter-filling resin, and heat-curable prepreg tape eliminates the need for heat-curing. The problem that thermal stress is generated in the cooling process before returning can be solved.
  • FIG. 8 the same or corresponding parts as those in Example 6 shown in FIG. 7 are denoted by the same reference numerals, and the description thereof will be omitted, and the parts different from FIG. 7 will be described.
  • FIG. 9 is a first conceptual diagram for explaining a method of manufacturing the mouth and mouth of the motor of the present embodiment.
  • reference numeral 8 denotes a nozzle A.
  • 9 is nozzle B.
  • Reference numeral 10 denotes an adhesive A, which is emitted from the nozzle A 8.
  • 11 is an adhesive B agent, which is emitted from the nozzle B 9.
  • FIG. 10 is a second conceptual diagram illustrating the method of manufacturing a motor according to the present embodiment.
  • the same or corresponding parts as those in FIG. S are denoted by the same reference numerals and description thereof is omitted.
  • FIG. 11 is a third conceptual diagram for explaining the method of manufacturing a motor according to the present embodiment.
  • the same or corresponding parts as in FIG. 8 are denoted by the same reference numerals, and the description thereof is omitted.
  • the two-liquid, room-temperature, short-time curing type nitrile rubber-modified acryl-based adhesive has excellent oil-surface adhesiveness, and does not require any special treatment of the adhesive surface of the ROYU Yoke 2.
  • a method of the mixed coating there is a spray coating method, and these nozzles A 8 and A 9 are used by using a nozzle A 8 for the adhesive A agent 10 and a nozzle B 9 for the adhesive B agent 11.
  • Adhesive A 10 and Spray B 1 11 sprayed from nozzle B 9 are mixed in a mist, and the resulting adhesive is applied to the bonded part on low pressure 2 Things.
  • the permanent magnets 1 are adhered to the yoke 2 one by one from the end one by one.
  • the next permanent magnet 1 is first placed at a position slightly away from the permanent magnet 1 already stuck on the mouth 2. Then, while being pressed lightly, the adhesive is moved so as to press against the already attached permanent magnet 1, and the adhesive enters between the permanent magnets 1 and the beads 6 mixed in the adhesive cause The gap 3 corresponding to the diameter of the bead 6 is naturally formed.
  • the same adhesive as described above is spray applied between the immediately preceding pole and the current pole to fill the gap.
  • the pre-taper tape 7 is cured by irradiating ultraviolet rays while rotating the mouth yoke 2 wound by the pre-preparation tape 7.
  • FIG. 12 is a sectional view of the mouth and mouth of the motor of this embodiment.
  • reference numeral 12 denotes a jig.
  • This jig 12 attaches to the jig 1 2 by suction, electromagnet, magnet tool, etc., the permanent magnet 1 placed beforehand, and glues the permanent magnet 1 on the yoke 2 Then, the jig 1 2 is removed from the permanent magnet 1.
  • a plurality of permanent magnets 1 attached to the jig 12 may be arranged in advance in the axial direction (series) of the rotating shaft of the mouth 2 in advance.
  • FIG. 12 the same or corresponding parts as those of the third embodiment shown in FIG. 4 are denoted by the same reference numerals, and the description thereof will be omitted, and the parts different from FIG. 4 will be described.
  • the surface of the jig 12 is covered with a non-adhesive material such as Teflon, polyethylene, or polypropylene, it is easy to clean when the adhesive is attached.
  • a non-adhesive material such as Teflon, polyethylene, or polypropylene
  • FIG. 13 is a cross-sectional view of the mouth of the module of the present embodiment.
  • FIG. 13 is a low yoke made of a laminated product of silicon steel sheets.c
  • Fig. 13 the same or corresponding parts as those in Example 7 shown in Fig. 8 are denoted by the same reference numerals. The description is omitted and the parts different from FIG. I explained it.
  • FIG. 14 is a sectional view of the mouth and mouth of the motor of this embodiment.
  • the red mackerel will be generated immediately when the permanent magnet 1 is degreased before bonding, thereby impairing the adhesiveness.
  • the use of a two-liquid, room-temperature, short-curing nitrile rubber-modified acryl-based adhesive with excellent oil-surface adhesion eliminates the need for pre-adhesion treatment of the rotor yoke, making it possible to eliminate the need for degreasing.
  • the rationalization can be achieved, the solvent can be eliminated, and the reliability of bonding can be improved.
  • By using such iron for low-grade steel, etc. other materials In some cases, processing is possible even when the structure is complicated and processing is not possible.
  • the motor according to the present invention has a plurality of poles, and has a low gap in which a gap is provided between the permanent magnets adjacent to the poles.
  • thermal stress between the permanent magnet and the mouth is reduced, and the occurrence of peeling can be suppressed.
  • the motor according to the present invention includes a plurality of poles, and a row of magnets provided with a gap for each of a predetermined number of permanent magnets of the poles.
  • thermal stress between the permanent magnet and the mouth is reduced, and the occurrence of peeling can be suppressed.
  • the gap between the adjacent permanent magnets is filled with an adhesive containing beads, and the gap between the adjacent permanent magnets is filled with an adhesive containing beads of a predetermined size.
  • the thickness of the adhesive layer between the adjacent permanent magnets can be made constant, and dimensional control becomes easy.
  • the gap between adjacent poles is filled with an adhesive containing beads, so that the permanent magnet can be more firmly fixed to the rotor.
  • the adhesive is a nitrile rubber-modified acryl-based or epoxy-based two-part room temperature-curable adhesive, which is more effective than the one-part heat-curable adhesive. Also, the gap between the permanent magnets can be reduced.
  • the diameter of the beads is 0.1 to 0.3 mm, and the gap between the adjacent permanent magnets is filled by the adhesive containing the beads to form the adjacent permanent magnets.
  • the thickness of the adhesive layer between the magnets can be made constant, and dimensional control becomes easy.
  • the beads are made of polyethylene or silicon rubber.
  • the difference in the amount of shrinkage of the permanent magnet can be absorbed by the adhesive layer between the permanent magnets, preventing peeling of the permanent magnet and the permanent magnet, and preventing cracking of the permanent magnet.
  • the molybdenum according to the present invention has an addition amount of beads of 1 to 10%, and stabilizes the thickness of the adhesive layer between the permanent magnets or between the mouth and the permanent magnet.
  • the thickness of the adhesive layer can be made constant while maintaining the adhesive strength.
  • a prepreg tape obtained by impregnating a glass fiber with an ultraviolet curable resin is wound around an outer periphery of the mouth where a permanent magnet is attached, There is no need to provide a heating step for hardening the tape, which simplifies the process and reduces costs.
  • a mouth-to-mouth arrangement in which a gap is provided between the adjacent permanent magnets of the poles in the mouth having a plurality of poles. The thermal stress between the first and the second is reduced, and the occurrence of peeling can be suppressed.
  • the motor according to the present invention has a plurality of poles, and has a low gap in which a gap is provided between the permanent magnets adjacent to the poles.
  • the thermal stress between the permanent magnet and the low magnet is reduced, and the occurrence of peeling can be suppressed.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)

Abstract

La présente invention concerne un moteur présentant un rotor qui comprend plusieurs pôles. Un écartement est défini entre les aimants permanents adjacents des pôles. Ainsi, même si la température change à cause des environs de l'installation du moteur ou de la fréquence de démarrage du moteur, la contrainte thermique exercée dans la région de liaison, entre la culasse du rotor et les aimants permanents, est supprimée, ce qui permet d'empêcher la culasse du rotor et les aimants permanents de se séparer l'un de l'autre ou d'empêcher les aimants permanents de se fissurer.
PCT/JP2001/001824 2000-08-24 2001-03-08 Moteur et rotor destine a ce moteur WO2002017462A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW090107005A TWI227587B (en) 2000-08-24 2001-03-23 Motor and its rotor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000254112A JP2002078257A (ja) 2000-08-24 2000-08-24 モーター及びそのローター
JP2000/254112 2000-08-24

Publications (1)

Publication Number Publication Date
WO2002017462A1 true WO2002017462A1 (fr) 2002-02-28

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PCT/JP2001/001824 WO2002017462A1 (fr) 2000-08-24 2001-03-08 Moteur et rotor destine a ce moteur

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JP (1) JP2002078257A (fr)
CN (1) CN1214506C (fr)
TW (1) TWI227587B (fr)
WO (1) WO2002017462A1 (fr)

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ES2387433A1 (es) * 2009-05-28 2012-09-21 Gamesa Innovation & Technology, S.L. Metodo de ensamblaje de imanes en generadores y motores de turbinas eolicas y consecuente ensamblaje de imanes.
US8316616B2 (en) 2009-03-04 2012-11-27 Vast Enterprises, Llc Methods and devices for constructing a wall with brick facade
WO2017160342A1 (fr) 2016-03-15 2017-09-21 General Atomics Ensemble rotor et procédé de fabrication
WO2017202518A1 (fr) * 2016-05-25 2017-11-30 Robert Bosch Gmbh Rotor d'une machine électrique
EP3576253A4 (fr) * 2017-01-30 2020-10-14 Hitachi Industrial Equipment Systems Co., Ltd. Machine électrique tournante du type à entrefer axial

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JP2007264576A (ja) * 2006-03-30 2007-10-11 Nidec Sankyo Corp レンズ駆動装置
WO2007097413A1 (fr) * 2006-02-24 2007-08-30 Nidec Sankyo Corporation Dispositif d'entrainement de lentille
JP5352949B2 (ja) * 2006-09-04 2013-11-27 株式会社ジェイテクト マグネット型モータ
US7965009B2 (en) * 2006-10-17 2011-06-21 Sanyo Denki Co., Ltd. Motor rotor and manufacturing method thereof
US7673380B2 (en) 2007-04-23 2010-03-09 Varco I/P, Inc. Methods for making rotors for permanent magnet motors
JP5068102B2 (ja) * 2007-05-22 2012-11-07 三菱電機株式会社 永久磁石式回転電機及びその回転子
US20100019599A1 (en) * 2008-07-28 2010-01-28 Direct Drive Systems, Inc. Rotor for an electric machine
JP5298905B2 (ja) * 2009-02-09 2013-09-25 日産自動車株式会社 分割永久磁石の製造方法とその分割永久磁石を用いた電動機
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CN109478810B (zh) * 2016-07-15 2020-11-17 三菱电机株式会社 转子、旋转电机及该转子的制造方法
EP3396685B1 (fr) 2017-04-28 2020-06-03 Nichia Corporation Composant composite comprenant un aimant lié en forme d'anneau et son procédé de fabrication
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EA202192066A1 (ru) 2018-12-17 2021-11-19 Ниппон Стил Корпорейшн Шихтованный сердечник и электродвигатель
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WO2020129935A1 (fr) 2018-12-17 2020-06-25 日本製鉄株式会社 Noyau feuilleté et machine rotative
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