WO2017179398A1 - 磁石埋込み型コアの製造装置及び製造方法 - Google Patents
磁石埋込み型コアの製造装置及び製造方法 Download PDFInfo
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- WO2017179398A1 WO2017179398A1 PCT/JP2017/012034 JP2017012034W WO2017179398A1 WO 2017179398 A1 WO2017179398 A1 WO 2017179398A1 JP 2017012034 W JP2017012034 W JP 2017012034W WO 2017179398 A1 WO2017179398 A1 WO 2017179398A1
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- magnet
- resin
- insertion hole
- manufacturing
- core
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- 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
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- 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
- H02K15/12—Impregnating, heating or drying of windings, stators, rotors or machines
- H02K15/125—Heating or drying of machines in operational state, e.g. standstill heating
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- 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
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/18—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/03—Injection moulding apparatus
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14467—Joining articles or parts of a single article
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/7653—Measuring, controlling or regulating mould clamping forces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/80—Measuring, controlling or regulating of relative position of mould parts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
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- 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
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/30—Structural association with control circuits or drive circuits
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- 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
- H02K15/12—Impregnating, heating or drying of windings, stators, rotors or machines
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/18—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
- B29C2043/181—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles encapsulated
- B29C2043/182—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles encapsulated completely
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76003—Measured parameter
- B29C2945/76006—Pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76003—Measured parameter
- B29C2945/76083—Position
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76494—Controlled parameter
- B29C2945/76568—Position
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2101/00—Use of unspecified macromolecular compounds as moulding material
- B29K2101/10—Thermosetting resins
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/25—Solid
- B29K2105/251—Particles, powder or granules
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0003—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular electrical or magnetic properties, e.g. piezoelectric
- B29K2995/0008—Magnetic or paramagnetic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/748—Machines or parts thereof not otherwise provided for
- B29L2031/7498—Rotors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H2025/2053—Screws in parallel arrangement driven simultaneously with an output member moved by the screws
Definitions
- the present invention relates to an apparatus and a method for manufacturing a magnet-embedded core in which a magnet is embedded.
- the magnet insertion holes are filled with liquid resin and filled.
- a technique has been developed to fix the magnet piece to the rotor core by curing the resin.
- the rotor core is carried into the mold together with the intermediate mold, and the lower mold has a cylindrical pot and A plunger is provided in the pot so as to be capable of moving up and down, and the mold resin melted in the pot is pumped by the upward movement of the plunger, and the mold resin is magnet in the rotor core through runners and gates formed between the middle and lower molds.
- a resin molding method of heating and curing after being filled in the insertion hole see, for example, Patent Document 1).
- the present invention has been made in view of the problems of the prior art as described above, and it is an object of the present invention to suppress the generation of unnecessary resin in fixing of magnet pieces by resin.
- the manufacturing apparatus of a magnet-embedded core is a manufacturing apparatus of a magnet-embedded core in which a magnet piece is embedded by resin filling a magnet insertion hole formed along an axial direction in a motor core.
- the resin insertion device for injecting the solid resin into the magnet insertion hole, the magnet piece insertion device for inserting the magnet piece into the magnet insertion hole, and the motor insertion by heating the motor core And a heating device for melting the solid resin in the hole.
- the solid resin is injected into the magnet insertion hole, and the solid resin is melted in the magnet insertion hole. Therefore, the molten resin is inserted into the magnet through the runner and the gate formed in the mold as in injection molding. As compared with the case of pressure-filling the holes, the resin of the resin portion remaining on the runner and the gate is saved. As a result, generation of unnecessary resin is suppressed in fixing the magnet pieces by the resin.
- the manufacturing apparatus preferably further includes a pressing device for pressing the resin in a molten state in the magnet insertion hole.
- the void remaining in the molten resin is discharged or the void is shrunk, and the resin with few voids reliably fixes the magnet piece.
- the manufacturing apparatus preferably further includes upper and lower molds capable of holding the motor core.
- the motor core can be held by the upper mold and the lower mold.
- the above-mentioned manufacturing apparatus preferably further includes a pressing device for pressing the resin in a molten state in the magnet insertion hole through the upper and lower molds.
- the molten resin in the magnet insertion hole is pressurized in a state in which the motor core is held between the upper mold and the lower mold, so that the pressurization is reliably performed and the resin is less voided. Fixing of the magnet piece is performed more reliably.
- the resin feeding device feeds the resin into a magnet insertion hole of the motor core placed on the lower mold.
- the resin injecting apparatus injects the resin into a magnet insertion hole of the motor core outside the upper mold and the lower mold.
- the magnet piece inserting device inserts the magnet piece into a magnet insertion hole of the motor core placed on the lower mold.
- the magnet piece inserting device inserts the magnet piece into the magnet insertion hole of the motor core outside the upper mold and the lower mold.
- the manufacturing apparatus preferably further includes a heating furnace for heating the motor core outside the upper mold and the lower mold.
- a method of manufacturing a magnet-embedded core is a method of manufacturing a magnet-embedded core in which a magnet piece is embedded by resin filling a magnet insertion hole formed along an axial direction in a motor core.
- a resin charging step of charging solid resin into the magnet insertion hole; a magnet piece inserting step of inserting the magnet piece before the resin charging step or after the resin charging step; and the magnet insertion hole in the magnet insertion hole The method includes a melting step of melting a solid resin and a curing step of curing the molten resin.
- the above-mentioned manufacturing method preferably further includes a resin pressurizing step of pressurizing the molten resin.
- the void remaining in the molten resin is discharged or the void is shrunk, and the resin with few voids reliably fixes the magnet piece.
- the melting step includes melting at least a part of the solid resin by the motor core which is preheated before the resin charging step.
- the time required for the motor core to reach the temperature required to melt the solid thermosetting resin in the melting step can be shortened, and the production efficiency can be improved.
- the solid resin is obtained by forming an uncured powdery or granular raw material resin into a predetermined shape.
- the solid resin molded into a predetermined shape as referred to herein includes one molded in accordance with the shape of the magnet insertion hole.
- the amount of solid resin to be introduced into the magnet insertion hole can be preset to an appropriate one without excess or deficiency, and the handling of the solid resin is good, and the working efficiency of the resin insertion step is improved. be able to.
- At least one outer surface of the solid resin is in contact with the inner surface of the motor core that defines the magnet insertion hole.
- the solid resin is in the form of uncured granules.
- Uncured, granular resin as referred to herein includes tablets.
- solid resin can be appropriately and easily introduced into the magnet insertion hole regardless of the shape of the magnet insertion hole and the required amount of resin.
- the magnet pieces may be preheated before being inserted into the magnet insertion hole.
- the heat of the magnet piece introduced into the magnet insertion hole effectively contributes to the melting of the solid resin in the magnet insertion hole, and the time necessary for melting the solid resin in the melting step is shortened. Can improve the production efficiency.
- the generation of unnecessary resin can be suppressed in fixing the magnet piece by the resin.
- FIG. 1 is a front view showing a partial cross section of an embodiment of a manufacturing apparatus of a magnet-embedded core according to the present invention
- the front view which makes the state at the time of the resin melting process of the same manufacturing apparatus a partial cross section A front view showing a partial cross section of a state immediately before completion of mold clamping of the same manufacturing apparatus
- FIGS. 1 and 2 An example of a magnet-embedded core manufactured by the manufacturing method according to the present invention will be described with reference to FIGS. 1 and 2.
- the magnet embedded core 100 includes a motor core 101 including a plurality of magnet insertion holes 104 and magnet pieces 110 disposed in the magnet insertion holes 104.
- the motor core 101 is formed by laminating a plurality of iron core thin plates 106 formed in a disk shape including a center hole 102 and a plurality of magnet insertion holes 104 by punching and pressing.
- Each magnet insertion hole 104 is provided around the center hole 102, and each has a substantially rectangular planar shape (cross-sectional shape), penetrates the motor core 101 in the laminating direction (axial direction), and is formed on the upper end surface 108 of the motor core 101. This is a substantially rectangular space opened with the upper opening 105.
- the magnet insertion hole 104 penetrates the motor core 101 in the axial direction.
- the magnet insertion hole is inserted into the iron core thin plate 106 of the lowermost iron core thin plate 106 constituting the motor core 101. By not providing the hole which comprises the hole 104, it is also possible to make the magnet insertion hole 104 a bottomed hole.
- Each magnet piece 110 has a rectangular parallelepiped shape, and is fixed to the motor core 101 by the resin 112 in the magnet insertion hole 104.
- the resin 112 a thermosetting resin such as an epoxy resin which is cured by heating at a predetermined curing temperature or higher can be used.
- the magnet piece 110 can be configured, for example, by a ferrite-based sintered magnet or a permanent magnet (including one before magnetizing) such as a neodymium magnet.
- the axial length of the magnet piece 110 is set smaller than the axial length of the magnet insertion hole 104, and the end face (here, the upper surface) of the magnet piece 110 is covered with the resin 112.
- the length of the magnet piece 110 in the width direction (the width dimension in the direction along the tangential direction of the motor core 101 and the width dimension in the direction along the direction parallel to the radial direction of the motor core 101)
- the width dimension in the direction along the tangential direction of the motor core 101 and the width dimension in the direction along the direction parallel to the radial direction of the motor core 101 are set smaller.
- the magnet piece 110 is disposed so as to be biased inward (on the center side of the motor core 101) in the magnet insertion hole 104.
- the outer surface 110 ⁇ / b> A located inside the magnet piece 110 is in surface contact (contact) with the inner surface 104 ⁇ / b> A located inside the magnet insertion hole 104.
- the gap between each surface (except for the inner surface 104A) defining the magnet insertion hole 104 and each corresponding surface (except for the outer surface 110A) of the magnet piece 110 is more than practical size Is also shown large.
- the magnet piece 110 may be disposed so as to be biased outward in the magnet insertion hole 104.
- the manufacturing apparatus of the present embodiment includes an apparatus main body 1.
- the apparatus body 1 comprises a plurality of tie bars 14, a flat lower fixing board 10 fixed to the lower end of each tie bar 14, a flat upper fixing board 12 fixed to the upper ends of each tie bar 14, and the tie bars 14. It includes a movable platen 16 slidably engaged in the axial direction (vertical direction) and movable between the lower fixed platen 10 and the upper fixed platen 12 in the vertical direction.
- the lower fixed board 10, the upper fixed board 12 and the movable board 16 face each other.
- a lower mold 18 forming a fixed mold is attached to the upper surface 11 of the lower fixing board 10.
- An upper mold 20 forming a movable mold is attached to the lower surface 17 of the movable platen 16.
- the lower die 18 is a flat plate, and the transport tray 21 is mounted on the upper surface 19 of the lower die 18 so as to be able to be carried in / out from a transport device (not shown) such as a robot arm.
- a plurality of transport trays 21 are flat, and a plurality of transport trays 21 are prepared for one apparatus main body 1, and each transport tray 21 is provided outside the apparatus main body 1 (another place outside the lower mold 18 and the upper mold 20).
- the motor core 101 is placed (preset) on the top.
- the operation rate of the apparatus main body 1 including the lower mold 18 and the upper mold 20 capable of holding the motor core 101 is improved by the conveyance tray 21 on which the motor core 101 is mounted being carried in to the predetermined position on the lower mold 18 in this manner. improves.
- the mounting of the motor core 101 on the transport tray 21 is performed in a state of being positioned by a positioning member (not shown) provided on the transport tray 21.
- a cylindrical heating device 70 is removably disposed on the outer periphery of the motor core 101.
- the heating device 70 may be a high frequency induction heating device or the like, and heats the motor core 101 to melt the solid resin 114 (see FIG. 5) charged into the magnet insertion hole 104.
- the upper mold 20 has a substantially flat lower surface 22.
- the lower surface 22 faces the substantially flat upper end surface 108 of the motor core 101 on the lower die 18 and can press the motor core 101 in the stacking direction (downward) by lowering the movable plate 16.
- a pressing projection 24 is formed at a position where the lower surface 22 is aligned with each magnet insertion hole 104.
- the pressing projection 24 has the same rectangular shape in plan view as the magnet insertion hole 104 in plan view, and as shown in FIG. 9, the upper opening of the corresponding magnet insertion hole 104 when the movable plate 16 is lowered.
- the molten resin 116 (referred to as molten resin 116) in the magnet insertion hole 104 is pressurized.
- the pressing projection 24 may be configured as a component separate from the upper die 20, and may be configured to move up and down separately from the upper die 20 by spring repulsion or the like.
- a clamping device (pressurizing device) 30 including a toggle link mechanism 42 is provided between the upper fixed platen 12 and the movable platen 16.
- the toggle link mechanism 42 drives the movable platen 16 in a direction (vertical direction) to move away from and in contact with the lower fixed platen 10.
- One end pivotably connected to the lower portion of the upper fixed platen 12 by the pivot shaft 32 is The upper link 34 and the lower link 38 having one end pivotally connected to the upper part of the movable platen 16 by the pivot 36, and the other ends of the upper link 34 and the lower link 38 are mutually pivoted by the pivot 40 It is pivotally connected.
- the clamping device 30 includes a hydraulic cylinder device 46.
- the hydraulic cylinder device 46 drives the toggle link mechanism 42, and has a cylinder tube 47 having a proximal end pivotally connected to the fixed frame 3 of the device body 1 by a pivot 44 and a free end of the cylinder tube 47 And a piston rod 48 projecting outward from the The tip of the piston rod 48 is pivotably connected to the other ends of the upper link 34 and the lower link 38 by a pivot 40.
- the mold clamping device 30 positions the movable platen 16 at the highest position (mold open position).
- the piston rod 48 is advanced and the toggle link mechanism 42 is at the maximum extension state in which the toggle link mechanism 42 is extended straight, the movable platen 16 is positioned at the lowest position (mold closing position).
- the maximum bending state is a bending state in which the pinching angle formed by the upper link 34 and the lower link 38 is minimized as shown in FIG. 3. In the maximum extension state, as shown in FIG.
- the maximum extension state can be detected by a known method by measuring the vertical position of the movable plate 16 with a linear sensor (not shown) or the like.
- upper die 20 is located at the lowermost position with movable plate 16 and is in surface contact with upper end surface 108 of motor core 101 on lower die 18 with lower surface 22.
- the motor core 101 is pressed in the stacking direction, and is engaged with the magnet insertion hole 104 with the pressing projections 24 to close the upper opening 105, and the molten resin 116 in each magnet insertion hole 104 is pressed.
- This state is referred to as a mold clamping state (pressure state).
- Each cylinder 60 is disposed radially outward around the center of the motor core 101 disposed at a predetermined position on the lower die 18 via the transport tray 21 and around the center of the motor core 101, and each of the movable members is movable 62 is supported so as to be movable in the vertical direction.
- Each mover 62 integrally has a tip portion 66 which protrudes through the through hole 64 formed in the bottom (lower end) of the cylindrical body 60 to the outside of the cylindrical body 60. The tip surface 67 of each tip 66 faces the upper surface 19 of the lower die 18.
- each compression coil spring 68 is provided between the upper die 20 and the mover 62.
- Each compression coil spring 68 biases the corresponding mover 62 toward the bottom of the cylinder 60, in other words, toward the lower die 18.
- the biasing forces of the movers 62 by the compression coil springs 68 set in the cylinders 60 may be identical to each other.
- each mover 62 is a moving process in which the upper die 20 approaches the lower die 18, and more specifically, the lower surface 22 of the upper die 20 is above the motor core 101, as shown in FIG.
- the upper mold 20 descends to a lowered position slightly before falling to a lowered position where it makes surface contact with the end face 108, it is arranged to be in contact with the upper surface 19 of the lower mold 18 simultaneously (dimension setting of each part).
- the manufacturing apparatus of the present embodiment includes a resin feeding device 80 (see FIG. 4) and a magnet piece loading device 90 (see FIG. 5).
- the resin feeding device 80 includes a substrate 82, a resin holding body 86 provided on the substrate 82 to define resin holding holes 84 corresponding to the respective magnet insertion holes 104, and a substrate 82. And a shutter plate 88 rotatably attached to the lower bottom surface to selectively shield the lower end opening of the resin holding hole 84, and the motor core 101 on the lower mold 18 by a transport device (not shown) such as a robot arm. It is placed on the upper end surface 108.
- the resin holding hole 84 holds the resin 114 in a solid state (hereinafter, solid resin 114).
- the solid resin (resin block) 114 is a primary resin in an uncured state in a substantially rectangular shape that conforms to the shape of the magnet insertion hole 104 with an uncured powdery or granular raw resin material by means of a tableting machine or the like (not shown). It is molded.
- the magnet piece loading device 90 includes a substrate 92, and a magnet piece holder 96 provided on the substrate 92 to define magnet piece holding holes 94 corresponding to the respective magnet insertion holes 104; And a shutter plate 98 rotatably mounted on the lower bottom surface of the substrate 92 to selectively shield the lower end opening of the magnet piece holding hole 94, the upper surface of the lower mold 18 by a transfer device (not shown) such as a robot arm. Is mounted on the upper end surface 108 of the motor core.
- the motor core 101 is placed with the movable plate 16 at the highest position and the mold opening state in which the upper die 20 is most separated from the lower die 18.
- the transport tray 21 is placed (carried in) at a predetermined position on the lower mold 18 by a transport device (not shown) such as a robot arm.
- the resin charging device 80 in which the solid resin 114 is set in each resin holding hole 84 in the mold opening state is a lower die by the transport device (not shown). 18 is mounted on the upper end surface 108 of the motor core. Thereafter, the lower end opening of each resin holding hole 84 is opened by the rotation of the shutter plate 88, and the solid resin 114 of each resin holding hole 84 is dropped into the corresponding magnet insertion hole 104.
- the resin injection device 80 is removed from the lower die 18 by the conveyance device (not shown) (conveying out of the apparatus main body 1).
- the solid resin 114 disposed in each magnet insertion hole 104 is heated in each magnet insertion hole 104 by the heat from the motor core 101 heated by the heating device 70. Thereby, each solid resin 114 starts melting in the magnet insertion hole 104.
- each solid resin 114 as shown in FIG. 5, at least one outer surface, in this embodiment, the outer surfaces 114A and 114B are in surface contact with the inner surfaces 104A and 104B of the magnet insertion hole 104, respectively.
- heat transfer from the motor core 101 to each solid resin 114 is efficiently performed as compared with the case where there is a gap between the two, and heating of the solid resin 114 in each magnet insertion hole 104 is thermally efficient quickly. To be done.
- the magnet pieces Prior to the melting step or in parallel with the melting step, as shown in FIG. 5 as the magnet piece inserting step, the magnet pieces are inserted with the magnet pieces 110 set in the respective magnet piece holding holes 94 in the mold open state.
- the device 90 is mounted on the upper end surface 108 of the motor core on the lower die 18 by a transfer device (not shown). Thereafter, the lower end openings of the magnet piece holding holes 94 are opened by the rotation of the shutter plate 98, and the magnet pieces 110 of the magnet piece holding holes 94 are dropped into the corresponding magnet insertion holes 104.
- the insertion of each magnet piece 110 is, as shown in FIG.
- the magnet piece insertion device 90 is removed from the lower die 18 by the transfer device (not shown) (conveying out of the apparatus main body 1).
- the magnet piece 110 inserted into the magnet insertion hole 104 may be preheated to a predetermined temperature by a heating furnace (not shown) or the like.
- the heating of the solid resin 114 in the magnet insertion hole 104 is performed directly by the heat of the magnet piece 110 in addition to the heat from the motor core 101 heated by the heating device 70.
- the melting of the solid resin 114 means that the raw material resin constituting the solid resin 114 becomes liquid or softened to be in a fluid state.
- the magnet piece 110 is pushed toward the bottom of the magnet insertion hole 104 so that the liquid level of the molten resin 116 (see FIG. 7) becomes the magnet insertion hole as the pushing progresses. It will rise gradually in 104.
- the molten resin 116 is the outer surface of the magnet piece 110 and the central hole of the magnet insertion hole 104.
- the liquid level of the resin 112 rises above the upper surface of the magnet piece 110 while being filled with the inner surface on the opposite side of the 102.
- the hydraulic pressure is supplied to the hydraulic cylinder device 46 to move the piston rod 48 forward.
- the pinching angle formed by the upper link 34 and the lower link 38 increases and the toggle link mechanism 42 extends, and along with this extension, the upper die 20 moves down together with the movable platen 16.
- each mover 62 When the upper mold 20 is lowered to a lowered position slightly before the lower position 22 where the lower surface 22 of the upper mold 20 makes surface contact with the upper end surface 108 of the motor core 101, each mover 62 The front end face 67 of the lower die 18 abuts on the upper face 19 of the lower die 18.
- the toggle link mechanism 42 is further extended, and as shown in FIG. 9, the upper link 34 and the lower link 38 extend in a straight line, that is, the toggle link mechanism 42 extends straight.
- the lower surface 22 of the upper die 20 makes surface contact with the upper end surface 108 of the motor core 101 to press the motor core 101 in the stacking direction, and the pressing projections 24 engage with the corresponding magnet insertion holes 104
- the upper opening 105 is closed and the molten resin 116 in the magnet insertion hole 104 is pressurized in a resin pressing step, which results in a clamping and pressurizing state.
- the gap between the adjacent iron core thin plates 106 is reduced or eliminated by this clamping, leakage of the molten resin 116 to the gap between the adjacent iron core thin plates 106 is reduced or avoided. Then, the molten resin 116 in the magnet insertion hole 104 is pressurized, so that the void remaining in the molten resin 116 or the shrinkage of the void is favorably performed.
- the hardening process of the molten resin 116 is performed in a mold clamping state in which the motor core 101 is pressurized by the upper die 20 and the upper opening 105 is closed, so that the magnet pieces 110 are fixed by the resin 112 It is carried out with little or no resin 112 leaking into the gap. As a result, a stable quality embedded magnet core 100 with good magnetic performance is obtained.
- the curing step is performed in a state in which the resin 112 in the magnet insertion hole 104 is pressed by the pressing projection 24 as a resin pressing step, the inside of the molten resin 116 is cured before the molten resin 116 is cured.
- the void remaining or the void shrinkage is well performed, and the resin piece 112 with a small number of voids ensures fixation of the magnet piece 110.
- the solid resin 114 introduced into the magnet insertion hole 104 is used as the resin 112 for fixing the magnet piece 110, and the solid resin 114 is melted in the magnet insertion hole 104 to form a mold like injection molding. Compared to pressing and filling the molten resin into the magnet insertion hole 104 through the runner and the gate, the resin of the resin portion remaining on the runner and the gate is saved, and the material cost is reduced. Moreover, by using the molded solid resin 114, the amount of solid resin to be introduced into the magnet insertion hole can be preset to an appropriate one without excess or deficiency, and the handling property of the solid resin is good, and the resin Work efficiency of the input process is improved.
- the upper mold 20 as well as the cylindrical body 60 are in the process of lowering the upper mold 20 from the state where the tip end surface 67 of the mover 62 is in contact with the upper surface 19 of the lower mold 18 to the mold clamping state.
- the downward displacement relative to the mover 62 causes the compression coil springs 68 to be compressed and deformed, and a spring force is applied between the upper mold 20 and the lower mold 18 to urge both the molds away from each other.
- the pressing force acting on the motor core 101 is reduced by the total of the spring force due to the compression deformation of each compression coil spring 68, and the die clamping of the toggle link mechanism 42 is correspondingly reduced.
- the force is offset, and the pressing force acting in the stacking direction on the motor core 101 in the mold clamping state becomes smaller than the rated clamping force obtained in the maximum extension state of the toggle link mechanism 42.
- the general-purpose toggle type mold clamping device 30 which is capable of obtaining the mold clamping force rated for several tens of tons inexpensively and repeatedly and stably achieving the mold clamping force (resin pressing force), the appropriate pressure is obtained. Is stably obtained, and no excessive pressing force acts on the motor core 101 at the time of mold clamping, and the motor core 101 is not deformed excessively in the laminating direction or the molten resin 116 is not excessively pressurized. .
- the suppression of the molten resin 116 leaking out of the magnet insertion hole 104 and the suppression of the decrease in the shape accuracy and the dimensional accuracy of the motor core 101 are compatible, and the magnet embedded core 100 of stable quality is efficiently manufactured. Be done.
- the pressing force actually acting on the motor core 101 when clamping the toggle link mechanism 42 in the maximum extension state is the rated clamping force of the clamping device 30, the spring constant of the compression coil spring 68, the amount of compressive deformation, preload, etc. Therefore, the pressure applied to the motor core 101 at the time of mold clamping can be freely adjusted by the setting of the spring characteristic of the compression coil spring 68. Thereby, even if the rated clamping force of the clamping device 30 is a fixed value, the setting of the spring characteristics of the compression coil spring 68 makes it possible to freely and widely set the pressurizing force actually acting on the motor core 101 when the clamping is completed. can do.
- An appropriate pressing force in resin sealing of the magnet embedded core 100 differs depending on the size of the motor core 101, the number of laminated layers, and the like.
- the resin sealing of the magnet embedded type core 100 of various kinds different in these specifications under the use of the same device main body 1, the lower mold 18 and the upper mold 20, The appropriate pressing force can be obtained in each of the resin seals of the various types of magnet embedded cores 100 only by changing the spring force characteristics. This makes it possible to reduce equipment investment for resin sealing of a wide variety of magnet embedded cores 100, and allows easy resin sealing of a wide variety of magnet embedded cores 100 with less equipment investment. It can correspond.
- Each compression coil spring 68 is disposed radially outward around the center of the central hole 102 of the motor core 101 positioned on the lower die 18 via the transport tray 21.
- the offset of the clamping force of the toggle link mechanism 42 due to the spring force does not become uneven around the center of the motor core 101.
- the compression deformation of the compression coil spring 68 is properly guided without being bent and guided by the cylindrical body 60, and the mover 62 moves the upper die 20 closer to the lower die 18 and the lower die 18 is moved. Therefore, a compression coil spring 68 with a short axial length can be used regardless of the mold opening distance.
- the lower die 18 is fixed to the lower fixed plate 10
- the upper die 20 is fixed to the movable plate 16
- the compression coil spring 68 is disposed in parallel between the lower die 18 and the upper die 20, Since it directly acts between the lower mold 18 and the upper mold 20 and the lower mold 18 and the upper mold 20 are not supported floatingly or suspended from the lower fixed disc 10 or the movable disc 16 by the compression coil spring 68, The lower die 18 and the upper die 20 do not cause an attitude error such as tilting due to the presence of the compression coil spring 68. Thus, accurate mold clamping is always performed.
- FIG. 10 the parts corresponding to FIG. 4 are assigned the same reference numerals as the reference numerals given in FIG. 4, and the description thereof is omitted.
- the resin feeding device 80 is placed on the motor core 101 disposed together with the transport tray 21 at a location outside the apparatus main body 1 including the lower die 18 and the upper die 20.
- the solid resin 114 is charged into 104.
- the occupation time of the device main body 1 in the resin charging step is eliminated, the operation rate of the device main body 1 is improved, and the time required for manufacturing the magnet embedding core 100 is also shortened. Efficiency is improved.
- FIG. 11 the parts corresponding to FIG. 5 are assigned the same reference numerals as the reference numerals given in FIG. 5, and the description thereof is omitted.
- the magnet piece insertion device 90 is placed on the motor core 101 disposed together with the transport tray 21 at a location outside the apparatus main body 1 including the lower mold 18 and the upper mold 20.
- the magnet piece 110 is inserted into the hole 104.
- the occupation time of the device main body 1 in the magnet piece insertion step is eliminated, the operation rate of the device main body 1 is improved, and the time required for manufacturing the magnet embedded core 100 is shortened. Manufacturing efficiency is improved.
- a heating furnace 120 for heating the motor core is provided separately from the apparatus main body 1 including the lower mold 18 and the upper mold 20.
- the heating furnace 120 has a heater 124 for raising the temperature in the furnace 122.
- the motor core 101 is heated by the heating furnace 120 outside the apparatus body 1.
- the motor core 101 is preheated, and the time required to heat the motor core 101 to the temperature necessary to melt the solid resin 114 on the lower mold 18 of the device body 1 is shortened.
- the occupancy time of the device body 1 in the melting process is shortened, the operation rate of the device body 1 is improved, and the time required for producing the magnet-embedded core 100 is also shortened. Improve.
- an uncured granular raw material resin 118 is used as a solid resin.
- the resin holder 86 of the resin feeding apparatus 80 in this embodiment has a funnel shape so that the granular raw material resin 118 can be easily inserted, and each resin holding body 86 doubles as a measuring cup of the granular raw material resin 118 You may
- the magnet piece inserting process may be performed before the resin charging process.
- the resin inserted into the magnet insertion hole 104 is easy to inject. It is preferable that it is unhardened granular raw material resin 118.
- the shape of the magnet insertion hole 104 and the magnet piece 110 is not limited to a substantially rectangular parallelepiped, and may be an appropriate shape according to the required magnetic characteristics and the like.
- the resin 112 is not limited to a thermosetting resin, and may be a thermoplastic resin.
- a thermoplastic resin is used as the resin 112
- a curing step by cooling is performed instead of the thermosetting step in the thermosetting resin.
- the magnet insertion hole 104 may not necessarily be a through hole at both ends, and may be a bottomed hole opened only at one end face of the motor core 101.
- the filling of the resin into the magnet insertion hole 104 may be performed by a solid resin such as a sheet, instead of the solid resin 114 or the granular raw resin 118.
- the mold clamping force may be small because the load in the mold opening direction due to the injection pressure of the resin does not act on the mold at the time of the resin charging step.
- the pressing of the motor core 101 at the time of mold clamping is not necessarily required, and may be pressing of the molten resin 116 in the magnet insertion hole 104 for void discharge. Further, pressing of the molten resin 116 in the magnet insertion hole 104 may be performed by another pressing device or a pressing member without using the pressing projection 24 of the upper die 20.
- the drive of the toggle link mechanism 42 may be an electric type in which a ball screw and a servomotor are used instead of the hydraulic cylinder device 46.
- the detection of the maximum extension state in this case can be performed by a known method using a rotary encoder that measures the rotation angle of the servomotor.
- the mold clamping device 30 may be a plurality of toggle link mechanisms arranged in parallel.
- the mold clamping device 30 is not limited to one including the toggle link mechanism 42, and may be a hydraulic direct acting type or an electric type.
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Abstract
Description
3 :固定フレーム
10 :下部固定盤
11 :上面
12 :上部固定盤
14 :タイバー
16 :可動盤
17 :下面
18 :下型
19 :上面
20 :上型
21 :搬送トレイ
22 :下面
24 :加圧用突部
30 :型締め装置
32 :枢軸
34 :上側リンク
36 :枢軸
38 :下側リンク
40 :枢軸
42 :トグルリンク機構
44 :枢軸
46 :油圧シリンダ装置
47 :シリンダチューブ
48 :ピストンロッド
60 :筒体
62 :可動子
64 :貫通孔
66 :先端部
67 :先端面
68 :圧縮コイルばね
70 :加熱装置
80 :樹脂投入装置
82 :基板
84 :樹脂保持孔
86 :樹脂保持体
88 :シャッタ板
90 :磁石片投入装置
92 :基板
94 :磁石片保持孔
96 :磁石片保持体
98 :シャッタ板
100 :磁石埋込み型コア
101 :モータコア
102 :中心孔
104 :磁石挿入孔
104A :内面
105 :上側開口
106 :鉄心用薄板
108 :上端面
110 :磁石片
110A :外面
112 :樹脂
114 :固形樹脂
114A :外面
116 :溶融樹脂
118 :原料樹脂
120 :加熱炉
122 :炉内
124 :ヒータ
Claims (15)
- モータコアに軸線方向に沿って形成された磁石挿入孔に対し、樹脂の充填により磁石片が埋め込まれた磁石埋込み型コアの製造装置であって、
前記磁石挿入孔に固形状態の前記樹脂を投入する樹脂投入装置と、
前記磁石挿入孔に前記磁石片を投入する磁石片投入装置と、
前記モータコアを加熱することにより、前記磁石挿入孔内の固形状態の前記樹脂を溶融させる加熱装置とを有する磁石埋込み型コアの製造装置。 - 前記磁石挿入孔内の溶融状態の前記樹脂を加圧する加圧装置を有する請求項1に記載の磁石埋込み型コアの製造装置。
- 前記モータコアを挟持可能な上型及び下型を有する請求項1に記載の磁石埋込み型コアの製造装置。
- 前記上型及び前記下型を介して前記磁石挿入孔内の溶融状態の前記樹脂を加圧する加圧装置を有する請求項3に記載の磁石埋込み型コアの製造装置。
- 前記樹脂投入装置は前記下型上に載置された前記モータコアの磁石挿入孔に対して前記樹脂を投入する請求項3又は4に記載の磁石埋込み型コアの製造装置。
- 前記樹脂投入装置は前記上型及び前記下型外において前記モータコアの磁石挿入孔に対して前記樹脂を投入する請求項3又は4に記載の磁石埋込み型コアの製造装置。
- 前記磁石片投入装置は前記下型上に載置された前記モータコアの磁石挿入孔に対して前記磁石片を投入する請求項3から6の何れか一項に記載の磁石埋込み型コアの製造装置。
- 前記磁石片投入装置は前記上型及び前記下型外において前記モータコアの磁石挿入孔に対して前記磁石片を投入する請求項3から6の何れか一項に記載の磁石埋込み型コアの製造装置。
- 前記上型及び前記下型外において前記モータコアを加熱する加熱炉を有する請求項3から8の何れか一項に記載の磁石埋込み型コアの製造装置。
- モータコアに軸線方向に沿って形成された磁石挿入孔に対し、樹脂の充填により磁石片が埋め込まれた磁石埋込み型コアの製造方法であって、
前記磁石挿入孔に固形の樹脂を投入する樹脂投入工程と、
前記樹脂投入工程前或いは前記樹脂投入工程後に前記磁石片を挿入する磁石片挿入工程と、
前記磁石挿入孔内において前記固形の樹脂を溶融させる溶融工程と、
溶融した前記樹脂を硬化させる硬化工程とを有する磁石埋込み型コアの製造方法。 - 溶融状態の前記樹脂を加圧する樹脂加圧工程を含む請求項10に記載の磁石埋込み型コアの製造方法。
- 前記溶融工程は前記樹脂投入工程前に予め加熱された前記モータコアによって前記固形の樹脂の少なくとも一部を溶融させることを含む請求項10または11に記載の磁石埋込み型コアの製造方法。
- 前記固形の樹脂は未硬化の粉末状或いは顆粒状の原料樹脂を所定形状に成形したものである請求項10から12の何れか一項に記載の磁石埋込み型コアの製造方法。
- 前記固形の樹脂の少なくとも一つの外面が前記磁石挿入孔を画定する前記モータコアの内面に接触している請求項13に記載の磁石埋込み型コアの製造方法。
- 前記固形の樹脂は未硬化の顆粒状のものである請求項10から12の何れか一項に記載の磁石埋込み型コアの製造方法。
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JP2017528861A JP6345883B2 (ja) | 2016-04-13 | 2017-03-24 | 磁石埋込み型コアの製造方法 |
MX2018012395A MX2018012395A (es) | 2016-04-13 | 2017-03-24 | Dispositivo y metodo para fabricar un nucleo con iman integrado. |
EP17782216.0A EP3444929B1 (en) | 2016-04-13 | 2017-03-24 | Manufacturing device and manufacturing method of magnet embedded core |
CN201780013784.3A CN108702069B (zh) | 2016-04-13 | 2017-03-24 | 磁体嵌入式芯的制造装置和制造方法 |
US16/073,845 US11038408B2 (en) | 2016-04-13 | 2017-03-24 | Method for manufacturing magnet embedded core |
CN201780023393.XA CN109075671B (zh) | 2016-04-13 | 2017-04-10 | 磁铁埋入型铁芯的制造方法、制造装置及制造工具 |
US16/092,294 US11201527B2 (en) | 2016-04-13 | 2017-04-10 | Device, method, and jig for manufacturing magnet embedded core |
JP2018512012A JP6871239B2 (ja) | 2016-04-13 | 2017-04-10 | 磁石埋込み型コアの製造方法、磁石埋込み型コアの製造装置及び製造治具 |
PCT/JP2017/014700 WO2017179547A1 (ja) | 2016-04-13 | 2017-04-10 | 磁石埋込み型コアの製造方法、磁石埋込み型コアの製造装置及び製造治具 |
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US11201526B2 (en) | 2021-12-14 |
WO2017179547A1 (ja) | 2017-10-19 |
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