WO2020129923A1 - 積層コアおよび回転電機 - Google Patents
積層コアおよび回転電機 Download PDFInfo
- Publication number
- WO2020129923A1 WO2020129923A1 PCT/JP2019/049260 JP2019049260W WO2020129923A1 WO 2020129923 A1 WO2020129923 A1 WO 2020129923A1 JP 2019049260 W JP2019049260 W JP 2019049260W WO 2020129923 A1 WO2020129923 A1 WO 2020129923A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- electromagnetic steel
- adhesive
- steel plates
- laminated
- core
- Prior art date
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 224
- 239000010959 steel Substances 0.000 claims abstract description 224
- 239000000853 adhesive Substances 0.000 claims description 88
- 230000001070 adhesive effect Effects 0.000 claims description 87
- 239000003522 acrylic cement Substances 0.000 claims description 8
- 229920001971 elastomer Polymers 0.000 claims description 3
- 239000000806 elastomer Substances 0.000 claims description 3
- 238000003475 lamination Methods 0.000 abstract 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 26
- 238000004804 winding Methods 0.000 description 17
- 229910052742 iron Inorganic materials 0.000 description 13
- 238000005304 joining Methods 0.000 description 11
- 238000010030 laminating Methods 0.000 description 11
- 238000012360 testing method Methods 0.000 description 11
- 238000012795 verification Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 238000000576 coating method Methods 0.000 description 9
- 239000011248 coating agent Substances 0.000 description 8
- 230000002093 peripheral effect Effects 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 229910000976 Electrical steel Inorganic materials 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 229920001187 thermosetting polymer Polymers 0.000 description 5
- 229910000565 Non-oriented electrical steel Inorganic materials 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 238000004088 simulation Methods 0.000 description 4
- 239000004925 Acrylic resin Substances 0.000 description 3
- 229920000178 Acrylic resin Polymers 0.000 description 3
- 229910001224 Grain-oriented electrical steel Inorganic materials 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 3
- 150000002484 inorganic compounds Chemical class 0.000 description 3
- 229910010272 inorganic material Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 238000009774 resonance method Methods 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- SOCTUWSJJQCPFX-UHFFFAOYSA-N dichromate(2-) Chemical compound [O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O SOCTUWSJJQCPFX-UHFFFAOYSA-N 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 238000010191 image analysis Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000010526 radical polymerization reaction Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/245—Magnetic cores made from sheets, e.g. grain-oriented
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
- H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
- B32B15/011—Layered products comprising a layer of metal all layers being exclusively metallic all layers being formed of iron alloys or steels
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/04—Homopolymers or copolymers of esters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F3/00—Cores, Yokes, or armatures
- H01F3/02—Cores, Yokes, or armatures made from sheets
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/16—Stator cores with slots for windings
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/04—Homopolymers or copolymers of esters
- C09J133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09J133/08—Homopolymers or copolymers of acrylic acid esters
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
- C09J2203/326—Applications of adhesives in processes or use of adhesives in the form of films or foils for bonding electronic components such as wafers, chips or semiconductors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
- H02K2201/09—Magnetic cores comprising laminations characterised by being fastened by caulking
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
Definitions
- the present invention relates to a laminated core and a rotating electric machine.
- the present application claims priority based on Japanese Patent Application No. 2018-235851 filed in Japan on December 17, 2018, the contents of which are incorporated herein by reference.
- Patent Document 1 Conventionally, a laminated core as described in Patent Document 1 below is known.
- this laminated core electromagnetic steel sheets adjacent to each other in the laminating direction are joined by both methods of adhesion and caulking.
- the conventional laminated core has room for improvement in improving the magnetic characteristics while ensuring the dimensional accuracy of the outer shape.
- the present invention has been made in view of the above-mentioned circumstances, and an object thereof is to improve the magnetic characteristics while ensuring the dimensional accuracy of the outer shape.
- a first aspect of the present invention is a laminated core including a plurality of electromagnetic steel sheets laminated with each other, the electromagnetic steel sheet being located on the first side along the laminating direction among the plurality of electromagnetic steel sheets, And the electromagnetic steel sheets located on the second side along the stacking direction are not crimped and adhered to each other, and the electromagnetic steel sheets located at the center along the stacking direction are laminated cores that are adhered to each other and not crimped. is there.
- Joining by caulking can improve dimensional accuracy as compared with joining by adhesion.
- the electromagnetic steel sheet located on the first side along the stacking direction and the electromagnetic steel sheet located on the second side along the stacking direction are both caulked. Therefore, the accuracy of the shape of each portion of the laminated core located on the first side and the second side in the laminating direction (each portion located outside the laminating direction with respect to the center of the laminating direction) can be improved. ..
- Each of these portions has a great influence on the outer shape of the laminated core with respect to the portion located in the center of the laminated core.
- the accuracy of the outer shape of the laminated core can be improved as a result. Therefore, the handleability of the laminated core can be ensured. For example, even when the winding is wound around the laminated core, the winding can be performed accurately.
- the joining by adhesion can suppress the distortion generated in the electrical steel sheet as compared with the joining by caulking.
- the strain generated in the magnetic steel sheet affects the iron loss of the magnetic steel sheet and the magnetic characteristics of the laminated core, and thus the smaller strain is preferable.
- the electromagnetic steel plates located in the center along the stacking direction are bonded to each other. Therefore, the occurrence of strain can be suppressed as compared with the case where these electromagnetic steel sheets are crimped to each other. As a result, the magnetic characteristics of the laminated core can be improved.
- the number of the electromagnetic steel plates located in the center and bonded to each other is the number of the electromagnetic steel plates located on the first side and crimped to each other, and The number may be larger than the number of the electromagnetic steel plates located on the second side and crimped to each other.
- the number of magnetic steel sheets located in the center and bonded to each other (hereinafter, referred to as N3) is the number of magnetic steel sheets located in the first side and crimped to each other (hereinafter, referred to as N1), and the second side. It is larger than the number of electromagnetic steel sheets that are located and crimped to each other (hereinafter referred to as N2). Therefore, in the entire laminated core, the ratio of the numbers of the electromagnetic steel plates joined by caulking can be reduced. As a result, the magnetic characteristics of the laminated core can be further improved.
- the number of steel plates may be equal.
- N1 and N2 are equal. Therefore, in the laminated core, it is possible to suppress a difference between the dimensional accuracy on the first side and the dimensional accuracy on the second side in the stacking direction. Thereby, the handleability of the laminated core can be further ensured.
- the electromagnetic steel sheet projects from the core back portion in an annular shape and the core back portion in a radial direction of the core back portion.
- a plurality of teeth portions arranged at intervals in the circumferential direction of the core back portion may be provided.
- Laminated core is a stator core that has a core back part and teeth part. Therefore, for example, when the winding is passed through the slot between the teeth portions that are adjacent to each other in the circumferential direction, the above-described operational effect of ensuring the handleability is remarkably achieved. That is, when the dimensional accuracy of the slot is increased, the winding can be easily wound around the tooth portion as designed. As a result, the winding space factor in the slot can be increased. As a result, the electrical loading in the slot can be increased.
- the average thickness of the adhesive portion may be 1.0 ⁇ m to 3.0 ⁇ m.
- the average tensile elastic modulus E of the adhesive portion may be 1500 MPa to 4500 MPa.
- the adhesive portion is a room temperature adhesive type acrylic adhesive containing SGA made of an elastomer-containing acrylic adhesive. May be.
- a second aspect of the present invention is a rotary electric machine including the laminated core according to any one of (1) to (7).
- FIG. 2 is a side view of a stator included in the rotary electric machine shown in FIG. 1.
- FIG. 2 is a plan view of an electromagnetic steel plate and an adhesive portion of a stator included in the rotating electric machine shown in FIG. 1.
- FIG. 2 is a plan view of an electromagnetic steel plate and caulking of a stator included in the rotating electric machine shown in FIG. 1.
- FIG. 6 is a sectional view taken along line VI-VI shown in FIG. 5.
- FIG. 7 is a cross-sectional view of a stator core according to a first modified example of the embodiment of the present invention, which is a view corresponding to the cross-sectional view shown in FIG. 6.
- FIG. 9 is a cross-sectional view of a stator core according to a second modified example of the embodiment of the present invention, which is a view corresponding to the cross-sectional view shown in FIG. 6.
- an electric motor specifically an AC electric motor, more specifically a synchronous electric motor, and more specifically, a permanent magnet field type electric motor will be described as an example of the rotating electric machine.
- This type of electric motor is preferably used in, for example, an electric vehicle.
- the rotary electric machine 10 includes a stator 20, a rotor 30, a case 50, and a rotary shaft 60.
- the stator 20 and the rotor 30 are housed in the case 50.
- the stator 20 is fixed to the case 50.
- an inner rotor type in which the rotor 30 is located inside the stator 20 is adopted.
- the rotating electric machine 10 may be an outer rotor type in which the rotor 30 is located outside the stator 20.
- the rotary electric machine 10 is a three-phase AC motor having 12 poles and 18 slots.
- the rotary electric machine 10 can rotate at a rotation speed of 1000 rpm by applying an exciting current having an effective value of 10 A and a frequency of 100 Hz to each phase.
- the stator 20 includes a stator core 21 and a winding (not shown).
- the stator core 21 includes an annular core back portion 22 and a plurality of teeth portions 23.
- the axial direction of the stator core 21 (core back portion 22) (direction of the central axis O of the stator core 21) is referred to as the axial direction, and is orthogonal to the radial direction of the stator core 21 (core back portion 22) (the central axis O of the stator core 21).
- the direction) is referred to as the radial direction
- the circumferential direction of the stator core 21 (core back portion 22) (the direction in which the stator core 21 rotates around the central axis O) is referred to as the circumferential direction.
- the core back portion 22 is formed in an annular shape in a plan view when the stator 20 is viewed in the axial direction.
- the plurality of teeth portions 23 project from the core back portion 22 inward in the radial direction (toward the central axis O of the core back portion 22 along the radial direction).
- the plurality of tooth portions 23 are arranged at equal intervals in the circumferential direction. In the present embodiment, 18 teeth portions 23 are provided at a central angle of 20 degrees about the central axis O.
- the plurality of teeth portions 23 have the same shape and the same size. Note that the plurality of tooth portions 23 do not have to have the same shape and size.
- the winding is wound around the tooth portion 23.
- the winding may be concentrated winding or distributed winding.
- the rotor 30 is arranged radially inward of the stator 20 (stator core 21).
- the rotor 30 includes a rotor core 31 and a plurality of permanent magnets 32.
- the rotor core 31 is formed in an annular shape (annular shape) arranged coaxially with the stator 20.
- the rotating shaft 60 is arranged in the rotor core 31.
- the rotating shaft 60 is fixed to the rotor core 31.
- the plurality of permanent magnets 32 are fixed to the rotor core 31. In the present embodiment, two pairs of permanent magnets 32 form one magnetic pole.
- the plurality of sets of permanent magnets 32 are arranged at equal intervals in the circumferential direction. In the present embodiment, 12 sets (24 in total) of permanent magnets 32 are provided at a central angle of 30 degrees about the central axis O. The intervals between the plurality of sets of permanent magnets 32 do not have to be equal.
- an embedded magnet type motor is used as the permanent magnet field type electric motor.
- a plurality of through holes 33 are formed in the rotor core 31 so as to penetrate the rotor core 31 in the axial direction.
- the plurality of through holes 33 are provided corresponding to the plurality of permanent magnets 32.
- Each of the permanent magnets 32 is fixed to the rotor core 31 while being arranged in the corresponding through hole 33.
- the fixing of each permanent magnet 32 to the rotor core 31 can be realized by, for example, bonding the outer surface of the permanent magnet 32 and the inner surface of the through hole 33 with an adhesive agent.
- a surface magnet type motor may be adopted as the permanent magnet field type electric motor instead of the embedded magnet type motor.
- the stator core 21 and the rotor core 31 are both laminated cores.
- the laminated core is formed by laminating a plurality of electromagnetic steel plates 40.
- the laminated thickness of each of the stator core 21 and the rotor core 31 is, for example, 50.0 mm.
- the outer diameter of the stator core 21 is, for example, 250.0 mm.
- the inner diameter of the stator core 21 is, for example, 165.0 mm.
- the outer diameter of the rotor core 31 is, for example, 163.0 mm.
- the inner diameter of the rotor core 31 is, for example, 30.0 mm.
- the product thickness, outer diameter, and inner diameter of the stator core 21, and the product thickness, outer diameter, and inner diameter of the rotor core 31 are not limited to these values.
- the inner diameter of the stator core 21 is based on the tip of the tooth portion 23 of the stator core 21.
- the inner diameter of the stator core 21 is the diameter of an imaginary circle inscribed in the tips of all the teeth 23.
- Each electromagnetic steel plate 40 forming the stator core 21 and the rotor core 31 is formed, for example, by punching an electromagnetic steel plate as a base material.
- the electromagnetic steel plate 40 a known electromagnetic steel plate can be used.
- the chemical composition of the electromagnetic steel sheet 40 is not particularly limited.
- a non-oriented electrical steel sheet is used as the electrical steel sheet 40.
- a non-oriented electrical steel sheet for example, a non-oriented electrical steel strip of JIS C 2552:2014 can be adopted.
- the grain-oriented electrical steel sheet for example, a grain-oriented electrical steel strip of JIS C 2553:2012 can be adopted.
- Insulation coatings are provided on both sides of the electromagnetic steel plate 40 to improve the workability of the electromagnetic steel plate and the iron loss of the laminated core.
- the substance forming the insulating coating for example, (1) an inorganic compound, (2) an organic resin, (3) a mixture of an inorganic compound and an organic resin, or the like can be applied.
- the inorganic compound include (1) a composite of dichromate and boric acid, and (2) a composite of phosphate and silica.
- the organic resin include epoxy resin, acrylic resin, acrylic styrene resin, polyester resin, silicon resin, and fluorine resin.
- the thickness of the insulating coating is preferably 0.1 ⁇ m or more.
- the insulating effect becomes saturated as the insulating coating becomes thicker.
- the space factor decreases and the performance as a laminated core decreases. Therefore, the insulating coating is preferably thin as long as the insulating performance can be secured.
- the thickness of the insulating coating is preferably 0.1 ⁇ m or more and 5 ⁇ m or less, more preferably 0.1 ⁇ m or more and 2 ⁇ m or less.
- the thickness of the electromagnetic steel sheet 40 is preferably 0.10 mm or more.
- the thickness of the electromagnetic steel plate 40 is preferably 0.65 mm or less. Further, as the electromagnetic steel plate 40 becomes thicker, iron loss increases.
- the thickness of the electromagnetic steel plate 40 is preferably 0.35 mm or less, and more preferably 0.20 mm or 0.25 mm.
- the thickness of each electromagnetic steel plate 40 is, for example, 0.10 mm or more and 0.65 mm or less, preferably 0.10 mm or more and 0.35 mm or less, and more preferably 0.20 mm or 0.25 mm. is there.
- the thickness of the electromagnetic steel plate 40 also includes the thickness of the insulating coating.
- the adhesive part 41 is an adhesive that is provided between the electromagnetic steel plates 40 adjacent to each other in the stacking direction and is hardened without being divided.
- a thermosetting adhesive by polymerization bonding or the like is used as the adhesive.
- the adhesive composition (1) acrylic resin, (2) epoxy resin, (3) composition containing acrylic resin and epoxy resin, and the like can be applied.
- a radical polymerization adhesive or the like can be used as such an adhesive. From the viewpoint of productivity, it is desirable to use a room temperature curing adhesive. The room temperature curable adhesive cures at 20°C to 30°C.
- An acrylic adhesive is preferable as the room temperature curable adhesive.
- Typical acrylic adhesives include SGA (Second Generation Acrylic Adhesive. Second Generation Acrylic Adhesive). Any anaerobic adhesive, instant adhesive, or elastomer-containing acrylic adhesive can be used as long as the effects of the present invention are not impaired. It should be noted that the adhesive referred to here is in a state before being cured, and becomes an adhesive portion 41 after the adhesive is cured.
- the average tensile elastic modulus E of the adhesive portion 41 at room temperature (20° C. to 30° C.) is in the range of 1500 MPa to 4500 MPa. If the average tensile elastic modulus E of the adhesive portion 41 is less than 1500 MPa, the rigidity of the laminated core is reduced. Therefore, the lower limit of the average tensile elastic modulus E of the adhesive portion 41 is set to 1500 MPa, more preferably 1800 MPa. On the contrary, if the average tensile elastic modulus E of the adhesive portion 41 exceeds 4500 MPa, the insulating coating formed on the surface of the electromagnetic steel plate 40 may be peeled off.
- the upper limit value of the average tensile elastic modulus E of the adhesive portion 41 is set to 4500 MPa, more preferably 3650 MPa.
- the average tensile elastic modulus E is measured by the resonance method. Specifically, the tensile elastic modulus is measured according to JIS R 1602:1995. More specifically, first, a sample for measurement (not shown) is manufactured. This sample is obtained by bonding the two electromagnetic steel plates 40 together with an adhesive to be measured and curing it to form the bonding portion 41.
- the adhesive is a thermosetting type
- this curing is performed by heating and pressing under the heating and pressing conditions in actual operation.
- the adhesive is a room temperature curing type, it is performed by applying pressure at room temperature.
- the tensile elastic modulus of this sample is measured by the resonance method.
- the method of measuring the tensile elastic modulus by the resonance method is performed in accordance with JIS R 1602:1995, as described above.
- the tensile elastic modulus of the bonded portion 41 alone is obtained by calculating the influence of the electromagnetic steel plate 40 itself from the tensile elastic modulus (measured value) of the sample. Since the tensile modulus obtained from the sample in this way is equal to the average value of the laminated core as a whole, this value is regarded as the average tensile modulus E.
- the composition of the average tensile elastic modulus E is set so that the average tensile elastic modulus E hardly changes at the laminating position along the laminating direction or the circumferential position around the central axis of the laminated core. Therefore, the average tensile elastic modulus E can be set to the value obtained by measuring the cured adhesive portion 41 at the upper end position of the laminated core.
- a bonding method for example, a method of applying an adhesive to the electromagnetic steel plate 40 and then bonding by heating or pressure bonding or both can be adopted.
- the heating means may be any means such as heating in a high temperature tank or an electric furnace, or a method of directly energizing.
- the thickness of the adhesive portion 41 is preferably 1 ⁇ m or more.
- the thickness of the adhesive portion 41 exceeds 100 ⁇ m, the adhesive force is saturated.
- the space factor decreases as the thickness of the bonding portion 41 increases, and the torque density when the laminated core is used as a motor decreases. Therefore, the thickness of the adhesive portion 41 is preferably 1 ⁇ m or more and 100 ⁇ m or less, more preferably 1 ⁇ m or more and 10 ⁇ m or less. In the above, the thickness of the adhesive portion 41 means the average thickness of the adhesive portion 41.
- the average thickness of the adhesive portion 41 is more preferably 1.0 ⁇ m or more and 3.0 ⁇ m or less. If the average thickness of the adhesive portion 41 is less than 1.0 ⁇ m, sufficient adhesive force cannot be secured as described above. Therefore, the lower limit of the average thickness of the adhesive portion 41 is 1.0 ⁇ m, and more preferably 1.2 ⁇ m. On the contrary, if the average thickness of the adhesive portion 41 exceeds 3.0 ⁇ m and becomes thicker, a problem such as a large increase in the amount of distortion of the electrical steel sheet 40 due to shrinkage during thermosetting occurs. Therefore, the upper limit of the average thickness of the adhesive portion 41 is 3.0 ⁇ m, and more preferably 2.6 ⁇ m. The average thickness of the adhesive portion 41 is an average value of the entire laminated core.
- the average thickness of the adhesive portion 41 hardly changes at the stacking position along the stacking direction or the circumferential position around the central axis of the stacked core. Therefore, the average thickness of the adhesive portion 41 can be set to the average value of the numerical values measured at 10 or more positions in the circumferential direction at the upper end position of the laminated core.
- the average thickness of the adhesive portion 41 can be adjusted, for example, by changing the amount of adhesive applied. Also, the average tensile elastic modulus E of the adhesive portion 41, for example, in the case of a thermosetting adhesive, can be adjusted by changing one or both of the heating and pressurizing conditions and the type of curing agent applied at the time of adhesion. You can
- the plurality of electromagnetic steel plates 40 forming the rotor core 31 are fixed to each other by caulking C (dowel). However, the plurality of electromagnetic steel plates 40 forming the rotor core 31 may be bonded to each other by the bonding portion 41.
- the laminated cores such as the stator core 21 and the rotor core 31 may be formed by so-called rolling.
- the stator core 21 of the present embodiment all the sets of the electromagnetic steel plates 40 that are adjacent to each other in the stacking direction are joined by either adhesion or caulking.
- the N1 electromagnetic steel plates 40 (hereinafter, also referred to as the first stacked body 76) located on the first side D1 along the stacking direction and the second along the stacking direction.
- the N2 sheets of electromagnetic steel plates 40 located on the side D2 (hereinafter, also referred to as the second laminated body 77) are not caulked and bonded to each other, and are not bonded by a bonding method other than caulking.
- the N3 electromagnetic steel plates 40 located in the center along the stacking direction are not adhered and caulked to each other, and further, other than the adhesion. Not joined by the joining method.
- the end located on the first side D1 is the first end 21a
- the end located on the second side D2 is the second end 21b.
- the first end 21a is formed by the N1 electromagnetic steel plates 40 (first laminated body 76).
- the second end 21b is formed by the N2 electromagnetic steel plates 40 (second laminated body 77).
- N1 and N2 are equal.
- the fact that N1 and N2 are equal includes not only when N1 and N2 are completely equal, but also when there is a slight difference between N1 and N2 (substantially equal). This slight difference refers to a difference in the number of sheets within 5% with respect to the total number of sheets of the stator core 21.
- caulking C1 and C2 are formed on the electromagnetic steel plates 40 (N1 and N2 electromagnetic steel plates 40, the first laminated body 76 and the second laminated body 77) that are crimped to each other.
- the crimps C1 and C2 include a first crimp C1 provided on the core back portion 22 and a second crimp C2 provided on the tooth portion 23.
- a plurality of the first crimps C1 are arranged at equal intervals along the circumferential direction.
- the first caulking C1 is arranged so as to be offset from the tooth portion 23 along the circumferential direction.
- the 1st crimp C1 is arrange
- the first crimp C1 is arranged in the center of the core back portion 22 along the radial direction.
- the second caulking C2 is provided on all the teeth portions 23.
- the second crimp C2 is arranged at the center in the circumferential direction of each tooth portion 23.
- Two second crimps C2 are arranged side by side in the radial direction on each tooth portion 23.
- the first caulking C1 includes a convex portion C11 and a concave portion C12 provided on each electromagnetic steel plate 40.
- the convex portion C11 projects from the electromagnetic steel plate 40 in the stacking direction.
- the recess C12 is arranged in a portion of each electromagnetic steel plate 40 located on the back side of the protrusion C11.
- the recess C12 is recessed in the stacking direction with respect to the surface (first surface) of the electromagnetic steel plate 40.
- the convex portion C11 and the concave portion C12 are formed, for example, by pressing each electromagnetic steel plate 40.
- one of the two electromagnetic steel plates 40 adjacent in the laminating direction is The first electromagnetic steel plate 40 and the other electromagnetic steel plate 40.
- the first caulking C1 is formed by fitting the convex portion C11 of the first electromagnetic steel plate 40 into the concave portion C12 of the second electromagnetic steel plate 40.
- the second caulking C2 has the same configuration as the first caulking C1.
- the second caulking C2 includes the convex portion C11 and the concave portion C12 provided on each electromagnetic steel plate 40.
- the second crimp C2 is formed by fitting the convex portion C11 of the first electromagnetic steel plate 40 into the concave portion C12 of the second electromagnetic steel plate 40. By fitting the convex portion C11 into the concave portion C12 and forming the second crimp C2, the relative displacement of the two electromagnetic steel plates 40 adjacent to each other in the stacking direction is restricted.
- the shapes of the convex portion C11 and the concave portion C12 are not particularly limited. Further, the protruding direction of the convex portion C11 and the concave direction of the concave portion C12 may be either the first side D1 or the second side D2 in the stacking direction. For example, as in the stator core 21 of the present embodiment shown in FIG. 6, both of the N1 electromagnetic steel plates 40 (first laminated body 76) and the N2 electromagnetic steel plates 40 (second laminated body 77), The convex portion C11 may protrude to the second side D2 and the concave portion C12 may be recessed to the second side D2.
- the electromagnetic steel plate 40 located closest to the second side D2 is convex.
- the portion C11 and the recess C12 may be formed.
- a through hole C13 is formed in the electromagnetic steel plate 40 located closest to the second side D2 instead of the convex portion C11 and the concave portion C12.
- the convex portion C11 of the electromagnetic steel plate 40 that is adjacent to the electromagnetic steel plate 40 having the through hole C13 from the first side D1 is fitted in the through hole C13.
- the two electromagnetic steel plates 40 located closest to the second side D2 are , Staking each other.
- the convex portion C11 projects to the second side D2 and the concave portion C12 has the second portion. It may be recessed on the side D2.
- the convex portion C11 may protrude to the first side D1 and the concave portion C12 may be concave to the first side D1.
- a through hole C13 is formed in the electromagnetic steel plate 40 located closest to the second side D2 in place of the convex portions C11 and the concave portions C12.
- a through hole C13 is formed in the electromagnetic steel plate 40 located closest to the first side D1 instead of the convex portions C11 and the concave portions C12. .
- the convex portion C11 projects toward the first side D1
- the concave portion C12 forms the first portion.
- the convex portion C11 may protrude to the second side D2 and the concave portion C12 may be concave to the second side D2.
- a through hole C13 is formed in the electromagnetic steel plate 40 located closest to the first side D1 instead of the convex portions C11 and the concave portions C12. Has been done.
- a through hole C13 is formed in the electromagnetic steel plate 40 located closest to the second side D2 instead of the convex portions C11 and the concave portions C12. ..
- the convex portion C11 projects to the first side D1.
- the recess C12 may be recessed on the first side D1.
- the N3 electromagnetic steel plates 40 located at the center along the stacking direction are the N1 electromagnetic steel plates 40 (first stacked body). 76), and is sandwiched from both sides in the stacking direction by the N2 magnetic steel plates 40 (second stack 77).
- the N3 electromagnetic steel plates 40 (third stacked body 78) form the central portion 21 c of the stator core 21.
- N0 is obtained as the sum of N1, N2 and N3.
- the electromagnetic steel plates 40 adjacent to each other in the stacking direction are adhered to each other by the adhesive portion 41 provided along the peripheral edge of the electromagnetic steel plates 40.
- the electromagnetic steel plates 40 adjacent to each other in the stacking direction are bonded to each other by the first bonding portion 41a and the second bonding portion 41b.
- the first adhesive portion 41a is provided along the outer peripheral edge of the electromagnetic steel plate 40 in a plan view of the electromagnetic steel plate 40 viewed from the stacking direction.
- the second adhesive portion 41b is provided along the inner peripheral edge of the electromagnetic steel plate 40 in a plan view of the electromagnetic steel plate 40 viewed from the stacking direction.
- the first and second adhesive portions 41a and 41b are each formed in a band shape in plan view.
- belt shape here also includes shapes in which the width of the belt changes midway. For example, a shape in which round points are continuous in one direction without being divided is also included in a band shape extending in one direction. Further, being along the peripheral edge includes not only the case of being completely parallel to the peripheral edge but also the case of having an inclination of, for example, within 5 degrees with respect to the peripheral edge.
- the first adhesive portion 41 a is arranged along the outer peripheral edge of the electromagnetic steel plate 40.
- the first adhesive portion 41a continuously extends over the entire circumference in the circumferential direction.
- the first adhesive portion 41a is formed in an annular shape in a plan view when the first adhesive portion 41a is viewed in the stacking direction.
- the second adhesive portion 41b is arranged along the inner peripheral edge of the electromagnetic steel plate 40. The second adhesive portion 41b continuously extends over the entire circumference in the circumferential direction.
- the second adhesive portion 41b includes a plurality of tooth portions 44 and a plurality of core back portions 45.
- the plurality of tooth portions 44 are provided at intervals in the circumferential direction and are arranged in each tooth portion 23.
- the plurality of core back portions 45 are arranged in the core back portion 22, and connect the teeth portions 44 adjacent to each other in the circumferential direction.
- the tooth portion 44 includes a pair of first portions 44a and second portions 44b.
- the first portions 44a are arranged at intervals in the circumferential direction.
- the first portion 44a extends in the radial direction.
- the first portion 44a extends in a band shape in the radial direction.
- the second portion 44b connects the pair of first portions 44a to each other in the circumferential direction.
- the second portion 44b extends in a band shape in the circumferential direction.
- all adhesive parts 41 provided between the electromagnetic steel plates 40 have the same plan view shape.
- the plan view shape of the adhesive portion 41 means the overall shape of the adhesive portion 41 in a plan view of the electromagnetic steel plate 40 provided with the adhesive portion 41 when viewed from the stacking direction.
- the fact that all the adhesive portions 41 provided between the electromagnetic steel plates 40 have the same plan view shape means that all the adhesive portions 41 provided between the electromagnetic steel plates 40 have completely the same plan view shape. It does not include only certain cases, but includes substantially the same cases.
- the substantially same case is a case where the plan view shape of all the adhesive parts 41 provided between the electromagnetic steel plates 40 is common to 95% or more of the parts.
- the adhesion area ratio of the electromagnetic steel plate 40 by the adhesion portion 41 is 1% or more and 40% or less. In the illustrated example, the adhesion area ratio is 1% or more and 20% or less, and specifically 20%.
- the adhesion area ratio of the electromagnetic steel plate 40 by the adhesion portion 41 means the adhesion portion 41 of the first surface with respect to the area of the surface of the electromagnetic steel plate 40 that faces the stacking direction (hereinafter referred to as the first surface of the electromagnetic steel plate 40 ). Is the ratio of the area of the region (adhesion region 42) where is provided.
- the region where the adhesive portion 41 is provided is a region (adhesive region 42) of the first surface of the electromagnetic steel plate 40 where the adhesive that is cured without being divided is provided.
- the area of the region where the adhesive portion 41 is provided is obtained by, for example, photographing the first surface of the electromagnetic steel sheet 40 after peeling and performing image analysis of the photographing result.
- the bonding area ratio of the electromagnetic steel plate 40 by the bonding portion 41 between the electromagnetic steel plates 40 is 1% or more and 20% or less.
- the bonding area ratio of the electromagnetic steel plates 40 by the bonding portion 41 is 1% or more and 20% or less.
- the adhesive portions 41 are provided on both sides of one electromagnetic steel plate 40 in the stacking direction, the adhesive area ratios on both surfaces of the electromagnetic steel plate 40 are both 1% and 20%.
- the electromagnetic steel plates 40 (N1 sheets, N2 sheets of the electromagnetic steel sheets 40, the first laminated body 76, and the second laminated body 77) that are crimped to each other are not bonded.
- the adhesive portion 41 is not provided between the electromagnetic steel plates 40 that are crimped to each other.
- the electromagnetic steel plates 40 (N3 electromagnetic steel plates 40) adhered to each other are not caulked.
- the convex portions C11 and the concave portions C12 (or the through holes C13) are not fitted to each other in the electromagnetic steel plates 40 that are bonded to each other. That is, the regulation of the relative displacement of the electromagnetic steel plates 40 adhered to each other is not realized by at least fitting the convex portion C11 and the concave portion C12 (or the through hole C13).
- the caulking C1 and C2 and the adhesive portion 41 do not overlap with each other in plan view and are arranged at positions avoiding each other.
- the crimps C1 and C2 and the adhesive portion 41 are arranged so as to be displaced from each other in a plan view.
- the total area of the crimps C1 and C2 in plan view is smaller than the total area of the adhesive portion 41.
- a joining method at a boundary (hereinafter, referred to as a first boundary B1) between the N1 electromagnetic steel plates 40 on the first side D1 to be joined by caulking and the central N3 electromagnetic steel plates 40 to be joined by adhesion May be caulked or may be adhesive.
- the electromagnetic steel plate 40 most located on the second side D2 and the N3 electromagnetic steel plates 40 located at the center are the most first side D1.
- the electromagnetic steel plate 40 located at 1 may be joined to each other by caulking or may be joined by adhesion.
- the joining method at the boundary (hereinafter, referred to as second boundary B2) between the N2 electromagnetic steel plates 40 on the second side D2 to be joined by caulking and the central N3 electromagnetic steel plates 40 to be joined by adhesion is , Caulking may be used, or adhesion may be used.
- the electromagnetic steel plate 40 most located on the first side D1 and the most electromagnetic steel plate 40 located on the center of the N3 electromagnetic steel plates 40 are the second side D2.
- the electromagnetic steel plate 40 located at 1 may be joined to each other by caulking or may be joined by adhesion.
- the electromagnetic steel plates 40 adjacent to each other are bonded by adhesion at both the first boundary B1 and the second boundary B2. .
- one of the electromagnetic steel plates 40 adjacent to each other at each of the first boundary B1 and the second boundary B2 is a third electromagnetic steel plate 40, and the other is a fourth electromagnetic steel plate 40.
- a convex portion C11, a concave portion C12 or a through hole C13 is formed on the surface (first surface) facing the fourth electromagnetic steel plate 40.
- the fourth magnetic steel sheet 40 none of the convex portion C11, the concave portion C12, and the through hole C13 is formed on the surface (first surface) facing the third magnetic steel sheet 40.
- the surface of the fourth magnetic steel sheet 40 is substantially flat.
- what is substantially flat includes the case where the surface of the electromagnetic steel plate 40 is formed with a concavo-convex shape that is unavoidable in manufacturing.
- the electromagnetic steel plate 40 is superior in both the first boundary B1 and the second boundary B2.
- the electromagnetic steel plates 40 may not be joined at the boundaries B1 and B2 in expectation of the fastening force of the windings.
- the electromagnetic steel plates 40 (N1 electromagnetic steel plates 40, first laminated body 76) located on the first side D1 along the laminating direction and the second side D2 along the laminating direction.
- the electromagnetic steel plates 40 (N2 electromagnetic steel plates 40, the second laminated body 77) located are all crimped to each other. Therefore, in the stator core 21, the accuracy of the shape of each portion located on the first side D1 and the second side D2 in the stacking direction (each portion located outside the stacking direction with respect to the center in the stacking direction) is improved.
- each of these portions has a greater effect on the outer shape of the stator core 21 than the portion located in the center of the stator core 21. Therefore, by increasing the accuracy of the shape of each of these portions, as a result, the accuracy of the outer shape of the stator core 21 can be improved. Therefore, the handleability of the stator core 21 can be ensured. For example, even when the winding is wound around the stator core 21, the winding can be performed accurately.
- the winding when the winding is passed through the slot between the teeth portions 23 that are adjacent to each other in the circumferential direction, the above-described operational effect of ensuring the handleability is remarkably achieved. That is, when the dimensional accuracy of the slot is improved, the winding can be easily wound around the tooth portion 23 as designed. As a result, the winding space factor in the slot can be increased. As a result, the electrical loading in the slot can be increased.
- the joining by adhesion can suppress the distortion generated in the electrical steel sheet 40, as compared with the joining by caulking.
- the strain generated in the electromagnetic steel plate 40 affects the iron loss of the electromagnetic steel plate 40 and the magnetic characteristics of the stator core 21, and thus is preferably small.
- the electromagnetic steel plates 40 N3 electromagnetic steel plates 40, the third stacked body 78 located in the center along the stacking direction are bonded to each other. Therefore, the occurrence of strain can be suppressed as compared with the case where the electromagnetic steel plates 40 are crimped to each other. As a result, the magnetic characteristics of the stator core 21 can be improved.
- N3 is larger than N1 and N2. Therefore, in the entire stator core 21, the ratio of the numbers of the electromagnetic steel plates 40 joined by caulking can be reduced. As a result, the magnetic characteristics of the stator core 21 can be further improved. N1 and N2 are equal. Therefore, in the stator core 21, it is possible to suppress a difference between the dimensional accuracy on the first side D1 and the dimensional accuracy on the second side D2 in the stacking direction. Thereby, the handleability of the stator core 21 can be further ensured.
- the caulking C1 and C2 and the adhesive portion 41 do not overlap with each other in plan view and are arranged at positions avoiding each other.
- the caulking C1 and C2 and the adhesive portion 41 may overlap in a plan view.
- the shape of the stator core is not limited to the shape shown in the above embodiment. Specifically, the outer and inner diameters of the stator core, the product thickness, the number of slots, the circumferential and radial dimension ratios of the teeth portion 23, the radial dimension ratios of the teeth portion 23 and the core back portion 22, and the like. Can be arbitrarily designed according to the desired characteristics of the rotary electric machine.
- the pair of permanent magnets 32 forms one magnetic pole, but the present invention is not limited to this.
- one permanent magnet 32 may form one magnetic pole, and three or more permanent magnets 32 may form one magnetic pole.
- the permanent magnet field type electric motor has been described as an example, but the structure of the rotating electric machine is not limited to this as illustrated below, and further various publicly known examples not illustrated below. The structure of can also be adopted.
- the permanent magnet field type motor is described as an example of the synchronous motor, but the present invention is not limited to this.
- the rotating electric machine may be a reluctance type electric motor or an electromagnet field type electric motor (winding field type electric motor).
- the synchronous motor is described as an example of the AC motor, but the present invention is not limited to this.
- the rotating electric machine may be an induction motor.
- the AC motor is described as an example of the electric motor, but the present invention is not limited to this.
- the rotating electric machine may be a DC electric motor.
- an electric motor has been described as an example of the rotating electric machine, but the present invention is not limited to this.
- the rotating electric machine may be a generator.
- the verification test was performed by simulation using software.
- the software finite element method electromagnetic field analysis software JMAG manufactured by JSOL Co., Ltd. was used.
- a verification test a first verification test and a second verification test were performed.
- the stator 20 according to the embodiment shown in FIGS. 1 to 6 has a basic structure, and the following points are changed with respect to the stator 20. did. That is, the thickness of the electromagnetic steel plates was 0.25 mm, the laminated thickness of the laminated core was 50 mm, and the number of electromagnetic steel plates was 200.
- stator of Comparative Example 1 200 sheets of electromagnetic steel sheets were joined by caulking. In the stator of Comparative Example 2, 200 sheets of electromagnetic steel sheets were joined by adhesion in all layers. In the stator of Example 1, of 200 electromagnetic steel plates, 30 sheets (15% of the total number) located on both sides in the stacking direction were joined by caulking, and 140 sheets (all set in the center in the stacking direction). 70% of the number of sheets) were joined by adhesion.
- the iron loss per magnetic steel sheet and the dimensional accuracy as the stator core were confirmed.
- the iron loss was calculated by a simulation using the above software.
- the dimensional accuracy was evaluated by the amount of deviation from the target dimension when five stator cores were manufactured in each example.
- the stator 20 according to the embodiment shown in FIGS. 1 to 6 has a basic structure, and the following points are changed with respect to the stator 20. That is, the thickness of the electromagnetic steel plates was 0.25 mm, the laminated thickness of the laminated core was 50 mm, and the number of electromagnetic steel plates was 200.
- the stators of Examples 11 to 14 were set as follows.
- the stator of Example 11 of the 200 electromagnetic steel plates, 20 sheets (10% of the total number) located on both sides in the stacking direction were joined together by caulking, and 160 sheets (all set in the center in the stacking direction) 80% of the number of sheets) were joined by adhesion.
- the stator of Example 12 out of the 200 electromagnetic steel plates, 40 sheets (20% of the total number) located on both sides in the stacking direction were joined by caulking, and 120 sheets (all the sheets in the center in the stacking direction). 60% of the number of sheets) were bonded by adhesion.
- stator of Example 13 of 200 electromagnetic steel plates, 60 sheets (30% of the total number) located on both sides in the stacking direction were joined by caulking, and 80 sheets (all set in the center in the stacking direction). 40% of the number of sheets) were bonded by adhesion.
- stator of Example 14 of the 200 electromagnetic steel plates, 80 sheets each located on both sides in the stacking direction (40% of the total number) were joined by caulking, and 40 sheets located in the center in the stacking direction (all 20% of the number of sheets) were joined by adhesion.
- Examples 12 to 14 good results were obtained regarding the dimensional accuracy.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Soft Magnetic Materials (AREA)
- Manufacturing & Machinery (AREA)
Abstract
Description
本願は、2018年12月17日に、日本に出願された特願2018-235851号に基づき優先権を主張し、その内容をここに援用する。
(1)本発明の第一の態様は、互いに積層された複数の電磁鋼板を備える積層コアであって、前記複数の電磁鋼板のうち、積層方向に沿う第1側に位置する前記電磁鋼板、および積層方向に沿う第2側に位置する前記電磁鋼板は、いずれも互いにかしめられ接着されておらず、積層方向に沿う中央に位置する前記電磁鋼板は、互いに接着されかしめられていない積層コアである。
接着による接合は、かしめによる接合に比べて、電磁鋼板に生じる歪を抑えることができる。電磁鋼板に生じる歪は、電磁鋼板の鉄損および積層コアの磁気特性に影響を与えることから、小さいほうが好ましい。ここで、複数の電磁鋼板のうち、積層方向に沿う中央に位置する電磁鋼板が、互いに接着されている。したがって、これらの電磁鋼板が互いにかしめられている場合に比べて、歪の発生を抑えることができる。その結果、積層コアの磁気特性を向上させることができる。
本実施形態では、回転電機10として、ロータ30がステータ20の内側に位置するインナーロータ型を採用している。しかしながら、回転電機10として、ロータ30がステータ20の外側に位置するアウターロータ型を採用してもよい。また本実施形態では、回転電機10が、12極18スロットの三相交流モータである。しかしながら、例えば極数やスロット数、相数などは適宜変更することができる。なおこの回転電機10は、例えば、各相に実効値10A、周波数100Hzの励磁電流を印加することにより、回転数1000rpmで回転することができる。
ステータコア21は、環状のコアバック部22と、複数のティース部23と、を備える。以下では、ステータコア21(コアバック部22)の軸方向(ステータコア21の中心軸線O方向)を軸方向といい、ステータコア21(コアバック部22)の径方向(ステータコア21の中心軸線Oに直交する方向)を径方向といい、ステータコア21(コアバック部22)の周方向(ステータコア21の中心軸線O周りに周回する方向)を周方向という。
複数のティース部23は、コアバック部22から径方向の内側に向けて(径方向に沿ってコアバック部22の中心軸線Oに向けて)突出する。複数のティース部23は、周方向に同等の間隔をあけて配置されている。本実施形態では、中心軸線Oを中心とする中心角20度おきに18個のティース部23が設けられている。複数のティース部23は、互いに同等の形状で、かつ同等の大きさに形成されている。なお、複数のティース部23の形状、大きさは同等でなくてもよい。
前記巻線は、ティース部23に巻き回されている。前記巻線は、集中巻きされていてもよく、分布巻きされていてもよい。
ロータコア31は、ステータ20と同軸に配置される環状(円環状)に形成されている。ロータコア31内には、前記回転軸60が配置されている。回転軸60は、ロータコア31に固定されている。
複数の永久磁石32は、ロータコア31に固定されている。本実施形態では、2つ1組の永久磁石32が1つの磁極を形成している。複数組の永久磁石32は、周方向に同等の間隔をあけて配置されている。本実施形態では、中心軸線Oを中心とする中心角30度おきに12組(全体では24個)の永久磁石32が設けられている。なお、複数組の永久磁石32の間隔は、同等でなくてもよい。
なおステータコア21およびロータコア31それぞれの積厚は、例えば50.0mmとされる。ステータコア21の外径は、例えば250.0mmとされる。ステータコア21の内径は、例えば165.0mmとされる。ロータコア31の外径は、例えば163.0mmとされる。ロータコア31の内径は、例えば30.0mmとされる。ただし、これらの値は一例であり、ステータコア21の積厚、外径や内径、およびロータコア31の積厚、外径や内径はこれらの値に限られない。ここで、ステータコア21の内径は、ステータコア21におけるティース部23の先端部を基準としている。ステータコア21の内径は、全てのティース部23の先端部に内接する仮想円の直径である。
一方で絶縁被膜が厚くなるに連れて絶縁効果が飽和する。また、絶縁被膜が厚くなるに連れて占積率が低下し、積層コアとしての性能が低下する。したがって、絶縁被膜は、絶縁性能が確保できる範囲で薄い方がよい。絶縁被膜の厚さ(電磁鋼板40片面あたりの厚さ)は、好ましくは0.1μm以上5μm以下、さらに好ましくは0.1μm以上2μm以下である。
一方で電磁鋼板40が厚すぎると、電磁鋼板40のプレス打ち抜き作業が困難になる。そのため、電磁鋼板40のプレス打ち抜き作業を考慮すると電磁鋼板40の厚さは0.65mm以下とすることが好ましい。
また、電磁鋼板40が厚くなると鉄損が増大する。そのため、電磁鋼板40の鉄損特性を考慮すると、電磁鋼板40の厚さは0.35mm以下とすることが好ましく、より好ましくは、0.20mmまたは0.25mmである。
上記の点を考慮し、各電磁鋼板40の厚さは、例えば、0.10mm以上0.65mm以下、好ましくは、0.10mm以上0.35mm以下、より好ましくは0.20mmや0.25mmである。なお電磁鋼板40の厚さには、絶縁被膜の厚さも含まれる。
なお、平均引張弾性率Eは、共振法により測定される。具体的には、JIS R 1602:1995に準拠して引張弾性率を測定する。
より具体的には、まず、測定用のサンプル(不図示)を製作する。このサンプルは、2枚の電磁鋼板40間を、測定対象の接着剤により接着し、硬化させて接着部41を形成することにより、得られる。この硬化は、接着剤が熱硬化型の場合には、実操業上の加熱加圧条件で加熱加圧することで行う。一方、接着剤が常温硬化型の場合には常温下で加圧することで行う。
そして、このサンプルについての引張弾性率を、共振法で測定する。共振法による引張弾性率の測定方法は、上述した通り、JIS R 1602:1995に準拠して行う。その後、サンプルの引張弾性率(測定値)から、電磁鋼板40自体の影響分を計算により除くことで、接着部41単体の引張弾性率が求められる。
このようにしてサンプルから求められた引張弾性率は、積層コア全体としての平均値に等しくなるので、この数値をもって平均引張弾性率Eとみなす。平均引張弾性率Eは、その積層方向に沿った積層位置や積層コアの中心軸線回りの周方向位置で殆ど変わらないよう、組成が設定されている。そのため、平均引張弾性率Eは、積層コアの上端位置にある、硬化後の接着部41を測定した数値をもってその値とすることもできる。
一方で接着部41の厚さが100μmを超えると接着力が飽和する。また、接着部41が厚くなるに連れて占積率が低下し、積層コアをモータにした時のトルク密度が低下する。したがって、接着部41の厚さは1μm以上100μm以下、さらに好ましくは1μm以上10μm以下とすることが好ましい。
なお、上記において接着部41の厚さは、接着部41の平均厚みを意味する。
接着部41の平均厚みは、積層コア全体としての平均値である。接着部41の平均厚みはその積層方向に沿った積層位置や積層コアの中心軸線回りの周方向位置で殆ど変わらない。そのため、接着部41の平均厚みは、積層コアの上端位置において、円周方向10箇所以上で測定した数値の平均値をもってその値とすることができる。
なお、ステータコア21やロータコア31などの積層コアは、いわゆる回し積みにより形成されていてもよい。
第2かしめC2は、全てのティース部23に設けられている。第2かしめC2は、各ティース部23の周方向の中央に配置されている。第2かしめC2は、各ティース部23に径方向に2つ並んで配置されている。
ここで、前記N1枚の電磁鋼板40(第1積層体76)および前記N2枚の電磁鋼板40(第2積層体77)それぞれにおいて、積層方向に隣り合う2枚の電磁鋼板40の一方を第1の電磁鋼板40といい、他方を第2の電磁鋼板40という。第1かしめC1は、第1の電磁鋼板40の凸部C11が、第2の電磁鋼板40の凹部C12に嵌め込まれることにより形成されている。凸部C11が凹部C12に嵌め込まれ、第1かしめC1が形成されることにより、積層方向に隣り合う2枚の電磁鋼板40同士の相対的な変位が規制される。
また、凸部C11が突出する向き、凹部C12が窪む向きは、積層方向の第1側D1、第2側D2のどちらであってもよい。
例えば、図6に示す本実施形態のステータコア21のように、前記N1枚の電磁鋼板40(第1積層体76)および前記N2枚の電磁鋼板40(第2積層体77)のどちらにおいても、凸部C11が第2側D2に突出し、凹部C12が第2側D2に窪んでいてもよい。この場合、前記N1枚の電磁鋼板40(第1積層体76)および前記N2枚の電磁鋼板40(第2積層体77)それぞれにおいて、最も第2側D2に位置する電磁鋼板40には、凸部C11および凹部C12が形成されていてもよい。ただし図示の例では、前記最も第2側D2に位置する電磁鋼板40に、凸部C11および凹部C12に代えて、貫通孔C13が形成されている。この場合、貫通孔C13が形成された電磁鋼板40に対して第1側D1から隣り合う電磁鋼板40の凸部C11が、前記貫通孔C13内に嵌め込まれている。これにより、前記N1枚の電磁鋼板40(第1積層体76)および前記N2枚の電磁鋼板40(第2積層体77)それぞれにおいて、最も第2側D2に位置する2枚の電磁鋼板40が、互いにかしめられる。
さらに例えば、図7に示す第1変形例のステータコア21Aのように、前記N1枚の電磁鋼板40(第1積層体76)では、凸部C11が第2側D2に突出し、凹部C12が第2側D2に窪んでいてもよい。その上で、前記N2枚の電磁鋼板40(第2積層体77)では、凸部C11が第1側D1に突出し、凹部C12が第1側D1に窪んでいてもよい。図示の例では、前記N1枚の電磁鋼板40(第1積層体76)において、前記最も第2側D2に位置する電磁鋼板40に、凸部C11および凹部C12に代えて、貫通孔C13が形成されている。また、前記N2枚の電磁鋼板40(第2積層体77)において、前記最も第1側D1に位置する電磁鋼板40に、凸部C11および凹部C12に代えて、貫通孔C13が形成されている。
さらに例えば、図8に示す第2変形例のステータコア21Bのように、前記N1枚の電磁鋼板40(第1積層体76)では、凸部C11が第1側D1に突出し、凹部C12が第1側D1に窪んでいてもよい。その上で、前記N2枚の電磁鋼板40(第2積層体77)では、凸部C11が第2側D2に突出し、凹部C12が第2側D2に窪んでいてもよい。図示の例では、前記N1枚の電磁鋼板40(第1積層体76)において、前記最も第1側D1に位置する電磁鋼板40に、凸部C11および凹部C12に代えて、貫通孔C13が形成されている。また、前記N2枚の電磁鋼板40(第2積層体77)において、前記最も第2側D2に位置する電磁鋼板40に、凸部C11および凹部C12に代えて、貫通孔C13が形成されている。
また図示はしないが、前記N1枚の電磁鋼板40(第1積層体76)および前記N2枚の電磁鋼板40(第2積層体77)のどちらにおいても、凸部C11が第1側D1に突出し、凹部C12が第1側D1に窪んでいてもよい。
第2の接着部41bは、電磁鋼板40の内周縁に沿って配置されている。第2の接着部41bは、周方向の全周にわたって連続して延びている。
ティース部分44は、一対の第1部分44aと、第2部分44bと、を備えている。第1部分44aは、周方向に間隔をあけて配置されている。第1部分44aは、径方向に沿って延びている。第1部分44aは、径方向に帯状に延びている。第2部分44bは、一対の第1部分44a同士を周方向に連結している。第2部分44bは、周方向に帯状に延びている。
なお、電磁鋼板40を接着部41により接着することで、電磁鋼板40をかしめる場合に比べて、接着面積(接合面積)を容易に確保することができる。
さらに本実施形態では、互いに接着されている電磁鋼板40(N3枚の電磁鋼板40)は、かしめられていない。言い換えると、互いに接着されている電磁鋼板40では、凸部C11および凹部C12(または貫通孔C13)が嵌め合わされていない。すなわち、互いに接着されている電磁鋼板40の相対的な変位の規制が、少なくとも凸部C11および凹部C12(または貫通孔C13)の嵌め合いよっては実現されていない。
ここで、第1境界B1および第2境界B2それぞれにおいて互いに隣り合う電磁鋼板40のうちの一方を第3の電磁鋼板40とし、他方を第4の電磁鋼板40とする。第3の電磁鋼板40において、第4の電磁鋼板40を向く表面(第1面)には、凸部C11、凹部C12または貫通孔C13が形成されている。第4の電磁鋼板40において、第3の電磁鋼板40を向く表面(第1面)には、凸部C11、凹部C12および貫通孔C13のいずれもが形成されていない。第4の電磁鋼板40における前記表面は、実質的に平坦である。なお、ここで実質的に平坦であることには、例えば、電磁鋼板40の表面に製造上やむを得ず生じ得る凹凸形状が形成されている場合などが含まれる。
本実施形態では、周方向に隣り合うティース部23間のスロットに巻線を通すときに、前述した取り扱い性が確保されているという作用効果が顕著に奏功される。すなわち、スロットの寸法精度が高められると、巻線を設計通りにティース部23に巻き回し易くすることができる。これにより、スロットにおける巻線占積率を高めることができる。結果として、スロット内の電気装荷を高めることができる。
N1とN2とが等しい。したがって、ステータコア21において、積層方向の第1側D1における寸法精度と第2側D2における寸法精度との間に相違が生じるのを抑えることができる。これにより、ステータコア21の取り扱い性をより確保することができる。
前記実施形態では、同期電動機として、永久磁石界磁型電動機を一例に挙げて説明したが、本発明はこれに限られない。例えば、回転電機がリラクタンス型電動機や電磁石界磁型電動機(巻線界磁型電動機)であってもよい。
前記実施形態では、交流電動機として、同期電動機を一例に挙げて説明したが、本発明はこれに限られない。例えば、回転電機が誘導電動機であってもよい。
前記実施形態では、電動機として、交流電動機を一例に挙げて説明したが、本発明はこれに限られない。例えば、回転電機が直流電動機であってもよい。
前記実施形態では、回転電機として、電動機を一例に挙げて説明したが、本発明はこれに限られない。例えば、回転電機が発電機であってもよい。
検証試験として、第1の検証試験と、第2の検証試験と、を実施した。
第1の検証試験では、積層方向の両側の電磁鋼板がかしめられ、かつ、中央の電磁鋼板が接着されることに基づく作用効果について検証した。
この検証試験では、比較例1、2のステータ、実施例1のステータについてシミュレーションを実施した。
第2の検証試験では、かしめられる枚数、接着される枚数の相違に基づく効果の相違について検証した。
この検証試験では、実施例11~14のステータについてシミュレーションを実施した。
実施例11のステータでは、200枚の電磁鋼板のうち、積層方向の両側に位置する20枚ずつ(全枚数の10%ずつ)をかしめにより接合し、積層方向の中央に位置する160枚(全枚数の80%)を接着により接合した。
実施例12のステータでは、200枚の電磁鋼板のうち、積層方向の両側に位置する40枚ずつ(全枚数の20%ずつ)をかしめにより接合し、積層方向の中央に位置する120枚(全枚数の60%)を接着により接合した。
実施例13のステータでは、200枚の電磁鋼板のうち、積層方向の両側に位置する60枚ずつ(全枚数の30%ずつ)をかしめにより接合し、積層方向の中央に位置する80枚(全枚数の40%)を接着により接合した。
実施例14のステータでは、200枚の電磁鋼板のうち、積層方向の両側に位置する80枚ずつ(全枚数の40%ずつ)をかしめにより接合し、積層方向の中央に位置する40枚(全枚数の20%)を接着により接合した。
一方、実施例12~14では、寸法精度について良好な結果が得られた。
21、21A、21B ステータコア(積層コア)
22 コアバック部
23 ティース部
40 電磁鋼板
Claims (8)
- 互いに積層された複数の電磁鋼板を備える積層コアであって、
前記複数の電磁鋼板のうち、積層方向に沿う第1側に位置する前記電磁鋼板、および積層方向に沿う第2側に位置する前記電磁鋼板は、いずれも互いにかしめられ接着されておらず、積層方向に沿う中央に位置する前記電磁鋼板は、互いに接着されかしめられていない積層コア。 - 前記中央に位置して互いに接着される前記電磁鋼板の枚数は、前記第1側に位置して互いにかしめられる前記電磁鋼板の枚数、および前記第2側に位置して互いにかしめられる前記電磁鋼板の枚数よりも多い請求項1に記載の積層コア。
- 前記第1側に位置して互いにかしめられる前記電磁鋼板の枚数と、前記第2側に位置して互いにかしめられる前記電磁鋼板の枚数と、が等しい請求項1または2に記載の積層コア。
- 前記電磁鋼板は、環状のコアバック部と、前記コアバック部から前記コアバック部の径方向に突出するとともに前記コアバック部の周方向に間隔をあけて配置された複数のティース部と、を備えている請求項1から3のいずれか1項に記載の積層コア。
- 前記接着部の平均厚みが1.0μm~3.0μmである請求項1から4のいずれか1項に記載の積層コア。
- 前記接着部の平均引張弾性率Eが1500MPa~4500MPaである請求項1から5のいずれか1項に記載の積層コア。
- 前記接着部が、エラストマー含有アクリル系接着剤からなるSGAを含む常温接着タイプのアクリル系接着剤である請求項1から6のいずれか1項に記載の積層コア。
- 請求項1から7のいずれか1項に記載の積層コアを備える回転電機。
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020217016159A KR20210082511A (ko) | 2018-12-17 | 2019-12-17 | 적층 코어 및 회전 전기 기기 |
EP19899180.4A EP3902110A4 (en) | 2018-12-17 | 2019-12-17 | LAMINATED CORE AND ELECTRIC LATHE |
SG11202108986QA SG11202108986QA (en) | 2018-12-17 | 2019-12-17 | Laminated core and electric motor |
US17/292,762 US11973369B2 (en) | 2018-12-17 | 2019-12-17 | Laminated core with center electrical steel sheets adhered with adhesive and some electrical steel sheets fixed to each other on both ends of the center sheets |
EA202192066A EA202192066A1 (ru) | 2018-12-17 | 2019-12-17 | Шихтованный сердечник и электродвигатель |
CN201980079500.XA CN113169594A (zh) | 2018-12-17 | 2019-12-17 | 层叠铁芯以及旋转电机 |
CA3131661A CA3131661C (en) | 2018-12-17 | 2019-12-17 | Laminated core and electric motor |
KR1020237043815A KR20240005116A (ko) | 2018-12-17 | 2019-12-17 | 적층 코어 및 회전 전기 기기 |
JP2020561425A JP7412351B2 (ja) | 2018-12-17 | 2019-12-17 | 積層コアおよび回転電機 |
BR112021006549A BR112021006549A2 (pt) | 2018-12-17 | 2019-12-17 | núcleo laminado e motor elétrico |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018-235851 | 2018-12-17 | ||
JP2018235851 | 2018-12-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2020129923A1 true WO2020129923A1 (ja) | 2020-06-25 |
Family
ID=71101809
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2019/049260 WO2020129923A1 (ja) | 2018-12-17 | 2019-12-17 | 積層コアおよび回転電機 |
Country Status (11)
Country | Link |
---|---|
US (1) | US11973369B2 (ja) |
EP (1) | EP3902110A4 (ja) |
JP (1) | JP7412351B2 (ja) |
KR (2) | KR20210082511A (ja) |
CN (1) | CN113169594A (ja) |
BR (1) | BR112021006549A2 (ja) |
CA (1) | CA3131661C (ja) |
EA (1) | EA202192066A1 (ja) |
SG (1) | SG11202108986QA (ja) |
TW (1) | TWI717154B (ja) |
WO (1) | WO2020129923A1 (ja) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11710990B2 (en) | 2018-12-17 | 2023-07-25 | Nippon Steel Corporation | Laminated core with circumferentially spaced adhesion parts on teeth |
US11742129B2 (en) | 2018-12-17 | 2023-08-29 | Nippon Steel Corporation | Adhesively-laminated core, manufacturing method thereof, and electric motor |
US11855485B2 (en) | 2018-12-17 | 2023-12-26 | Nippon Steel Corporation | Laminated core, method of manufacturing same, and electric motor |
US11863017B2 (en) | 2018-12-17 | 2024-01-02 | Nippon Steel Corporation | Laminated core and electric motor |
US11915860B2 (en) | 2018-12-17 | 2024-02-27 | Nippon Steel Corporation | Laminated core and electric motor |
US11923130B2 (en) | 2018-12-17 | 2024-03-05 | Nippon Steel Corporation | Laminated core and electric motor |
US11979059B2 (en) | 2018-12-17 | 2024-05-07 | Nippon Steel Corporation | Laminated core and electric motor |
US11990795B2 (en) | 2018-12-17 | 2024-05-21 | Nippon Steel Corporation | Adhesively-laminated core for stator, method of manufacturing same, and electric motor |
US11996231B2 (en) | 2018-12-17 | 2024-05-28 | Nippon Steel Corporation | Laminated core and electric motor |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EA202192066A1 (ru) * | 2018-12-17 | 2021-11-19 | Ниппон Стил Корпорейшн | Шихтованный сердечник и электродвигатель |
DE102020125897A1 (de) * | 2020-10-02 | 2022-04-07 | Vacuumschmelze Gmbh & Co. Kg | Blechpaket, elektrische Maschine und Verfahren zum Herstellen eines Blechpakets |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002088107A (ja) * | 2000-09-18 | 2002-03-27 | Denki Kagaku Kogyo Kk | 硬化性樹脂組成物、硬化体、接着剤組成物及び接合体 |
JP2015136228A (ja) | 2014-01-17 | 2015-07-27 | 三菱電機株式会社 | 積層鉄心、固定子、積層鉄心の製造方法、固定子の製造方法 |
WO2018138864A1 (ja) * | 2017-01-27 | 2018-08-02 | 三菱電機株式会社 | 固定子、電動機、圧縮機、および冷凍空調装置 |
Family Cites Families (205)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3386058A (en) | 1966-11-21 | 1968-05-28 | Westinghouse Electric Corp | Inductive assembly with supporting means |
US4025379A (en) | 1973-05-03 | 1977-05-24 | Whetstone Clayton N | Method of making laminated magnetic material |
US4103195A (en) | 1976-08-11 | 1978-07-25 | General Electric Company | Bonded laminations forming a stator core |
CH632877A5 (de) * | 1978-12-14 | 1982-10-29 | Bbc Brown Boveri & Cie | Lamellierter pol fuer eine elektrische maschine mit ausgepraegten polen. |
JPS5665326A (en) | 1979-10-29 | 1981-06-03 | Tdk Corp | Magnetic core for magnetic head |
JPS576427A (en) | 1980-06-11 | 1982-01-13 | Canon Inc | Manufacture of magnetic core |
US4413406A (en) | 1981-03-19 | 1983-11-08 | General Electric Company | Processing amorphous metal into packets by bonding with low melting point material |
JPS60170681A (ja) | 1984-02-16 | 1985-09-04 | Nippon Synthetic Chem Ind Co Ltd:The | 接着剤組成物 |
JPS60186834A (ja) | 1984-03-07 | 1985-09-24 | Toray Ind Inc | 水現像可能な感光性樹脂版材 |
JPS63207639A (ja) | 1987-02-25 | 1988-08-29 | 日新製鋼株式会社 | 制振鋼板及びその製造方法 |
JPH03124247A (ja) | 1989-10-05 | 1991-05-27 | Aichi Emerson Electric Co Ltd | 回転電機の固定子 |
JPH03247683A (ja) | 1990-02-23 | 1991-11-05 | Sumitomo Chem Co Ltd | アクリル系接着剤組成物 |
JP2897344B2 (ja) | 1990-05-23 | 1999-05-31 | 住友化学工業株式会社 | 熱可塑性樹脂組成物 |
JPH08996B2 (ja) | 1991-01-24 | 1996-01-10 | 新日本製鐵株式会社 | 溶接性、塗料密着性に優れた表面処理鋼板の製造方法 |
US5448119A (en) * | 1991-03-29 | 1995-09-05 | Nagano Nidec Corporation | Spindle motor |
US5142178A (en) * | 1991-04-12 | 1992-08-25 | Emerson Electric Co. | Apparatus for aligning stacked laminations of a dynamoelectric machine |
JPH0614481A (ja) * | 1992-06-25 | 1994-01-21 | Mitsubishi Electric Corp | 電機子鉄心 |
JPH07118620A (ja) | 1993-10-22 | 1995-05-09 | Nippon Zeon Co Ltd | エポキシ系接着剤組成物 |
JPH07298567A (ja) | 1994-04-26 | 1995-11-10 | Honda Motor Co Ltd | 積層鋼板の接着用加熱装置 |
JPH08259899A (ja) | 1995-03-23 | 1996-10-08 | Three Bond Co Ltd | シアノアクリレート系接着剤組成物 |
US5783893A (en) * | 1995-10-20 | 1998-07-21 | Newport News Shipbuilding And Dry Dock Company | Multiple stator, single shaft electric machine |
DE19728172C2 (de) * | 1997-07-02 | 2001-03-29 | Wolfgang Hill | Elektrische Maschine mit weichmagnetischen Zähnen und Verfahren zu ihrer Herstellung |
JP3369941B2 (ja) | 1997-11-27 | 2003-01-20 | 日本鋼管株式会社 | 接着強度、耐食性及び耐ブロッキング性に優れた接着鉄芯用電磁鋼板の製造方法 |
JP2000050539A (ja) | 1998-07-28 | 2000-02-18 | Toshiba Corp | 回転電機の固定子鉄心、固定子鉄心用鋼板部品、固定子鉄心の製造方法および固定子鉄心用鋼板部品の製造方法 |
JP2000152570A (ja) | 1998-11-06 | 2000-05-30 | Toshiba Corp | 磁石鉄心の製造方法 |
JP2001115125A (ja) | 1999-10-01 | 2001-04-24 | Three M Innovative Properties Co | ネオジム磁石用接着剤及びモータ |
FR2803126B1 (fr) | 1999-12-23 | 2006-04-14 | Valeo Equip Electr Moteur | Alternateur pour vehicule a stator generant peu de bruit magnetique |
JP2001251828A (ja) * | 2000-03-02 | 2001-09-14 | Moric Co Ltd | 内燃機関用多極磁石式発電機 |
JP2002078257A (ja) | 2000-08-24 | 2002-03-15 | Mitsubishi Electric Corp | モーター及びそのローター |
US6784587B2 (en) * | 2000-08-29 | 2004-08-31 | Mitsubishi Denki Kabushiki Kaisha | Stacked stator core and method of manufacturing thereof, and rotary motor and method of manufacturing thereof |
JP2002164224A (ja) | 2000-08-30 | 2002-06-07 | Mitsui Chemicals Inc | 磁性基材およびその製造方法 |
JP2002105283A (ja) | 2000-09-28 | 2002-04-10 | Nhk Spring Co Ltd | エポキシ樹脂分散体およびそれを用いた銅張り積層板及び銅張り金属基板 |
JP2002125341A (ja) | 2000-10-16 | 2002-04-26 | Denki Kagaku Kogyo Kk | ステーター及びそれを用いたモーター |
JP2002151335A (ja) | 2000-11-10 | 2002-05-24 | Nippon Steel Corp | 鉄損特性の優れた積層鉄芯およびその製造方法 |
JP3725776B2 (ja) | 2000-11-10 | 2005-12-14 | 新日本製鐵株式会社 | 積層鉄芯の製造方法およびその製造装置 |
JP4747423B2 (ja) * | 2001-03-02 | 2011-08-17 | パナソニック株式会社 | 電動機 |
EP1241773B1 (en) * | 2001-03-14 | 2012-09-12 | Nissan Motor Co., Ltd. | Rotating electrical machine with air-gap sleeve |
JP4076323B2 (ja) | 2001-05-08 | 2008-04-16 | 電気化学工業株式会社 | 硬化性樹脂組成物、硬化体、接着剤組成物及び接合体 |
JP4018885B2 (ja) * | 2001-05-25 | 2007-12-05 | 株式会社三井ハイテック | 積層鉄心 |
JP3594003B2 (ja) * | 2001-08-28 | 2004-11-24 | 日産自動車株式会社 | 回転電機及びその製造方法 |
JP2003199303A (ja) | 2001-12-27 | 2003-07-11 | Matsushita Electric Ind Co Ltd | モータの製造方法 |
JP4165072B2 (ja) | 2002-01-15 | 2008-10-15 | 日立化成工業株式会社 | 接着剤組成物、接着フィルム、半導体搭載用配線基板及び半導体装置とその製造方法 |
JP2003219585A (ja) | 2002-01-22 | 2003-07-31 | Mitsubishi Electric Corp | 積層鉄心およびその製造方法 |
JP3771933B2 (ja) | 2002-03-08 | 2006-05-10 | Jfeスチール株式会社 | 積層コア用材料及びその製造方法 |
JP2003284274A (ja) | 2002-03-22 | 2003-10-03 | Nippon Steel Corp | 永久磁石同期モータのロータ |
GB0208565D0 (en) * | 2002-04-13 | 2002-05-22 | Rolls Royce Plc | A compact electrical machine |
JP2004088970A (ja) | 2002-08-29 | 2004-03-18 | Hitachi Ltd | 積層鉄心とそれを用いた回転電機およびトランス |
JP2004111509A (ja) | 2002-09-17 | 2004-04-08 | Nippon Steel Corp | 鉄損特性の優れた積層鉄芯及びその製造方法 |
JP4222000B2 (ja) | 2002-10-29 | 2009-02-12 | Nok株式会社 | 磁気エンコーダ |
JP3791492B2 (ja) * | 2002-12-25 | 2006-06-28 | 株式会社日立製作所 | 回転電機及び電動車両並びに樹脂のインサート成形方法 |
CN100476030C (zh) | 2003-02-03 | 2009-04-08 | 新日本制铁株式会社 | 粘接用表面涂覆电磁钢板 |
JP4987216B2 (ja) | 2003-06-25 | 2012-07-25 | Jfeスチール株式会社 | 寸法精度に優れた積層コア及びその製造方法 |
WO2005025032A1 (ja) * | 2003-09-03 | 2005-03-17 | Mitsuba Corporation | 電動モータ |
JP2005269732A (ja) | 2004-03-17 | 2005-09-29 | Nippon Steel Corp | 鉄芯の製造方法とその方法に適した装置 |
JP2005268589A (ja) | 2004-03-19 | 2005-09-29 | Nippon Steel Corp | エネルギー変換機器用磁性部材の簡易製造方法 |
JP4548049B2 (ja) | 2004-09-01 | 2010-09-22 | 株式会社日立製作所 | 回転電機 |
JP4498154B2 (ja) | 2005-01-27 | 2010-07-07 | ファナック株式会社 | モータの製造方法、及びモータ製造装置 |
JP2006254530A (ja) | 2005-03-08 | 2006-09-21 | Mitsubishi Electric Corp | 電動機 |
JP2006288114A (ja) | 2005-04-01 | 2006-10-19 | Mitsui High Tec Inc | 積層鉄心、及び積層鉄心の製造方法 |
JP2006353001A (ja) | 2005-06-15 | 2006-12-28 | Japan Servo Co Ltd | 積層鉄心とその製造方法及び製造装置 |
JP4687289B2 (ja) | 2005-07-08 | 2011-05-25 | 東洋紡績株式会社 | ポリアミド系混合樹脂積層フィルムロール、およびその製造方法 |
DE102005034486A1 (de) * | 2005-07-20 | 2007-02-01 | Vacuumschmelze Gmbh & Co. Kg | Verfahren zur Herstellung eines weichmagnetischen Kerns für Generatoren sowie Generator mit einem derartigen Kern |
JP4586669B2 (ja) | 2005-08-01 | 2010-11-24 | 住友金属工業株式会社 | 回転子用無方向性電磁鋼板の製造方法 |
JP2007053896A (ja) * | 2005-08-17 | 2007-03-01 | Minebea Co Ltd | ステータユニット及びその製造方法 |
JP4236056B2 (ja) * | 2006-02-08 | 2009-03-11 | 三菱電機株式会社 | 磁石発電機 |
KR100808194B1 (ko) * | 2006-05-19 | 2008-02-29 | 엘지전자 주식회사 | 아우터 로터 타입 모터의 스테이터 |
JP4938389B2 (ja) | 2006-09-06 | 2012-05-23 | 三菱電機株式会社 | 積層コアおよびステータ |
EP2086089A4 (en) * | 2006-10-13 | 2013-04-17 | Mitsui High Tec | LAMINATED IRON CORE AND MANUFACTURING METHOD THEREOF |
JP2008169439A (ja) * | 2007-01-12 | 2008-07-24 | Toyota Motor Corp | 磁性粉末、圧粉磁心、電動機およびリアクトル |
ITMI20070508A1 (it) * | 2007-03-14 | 2008-09-15 | Corrada Spa | Articolo laminare per uso elettrico procedimento e macchine per realizzare detto articolo laminare |
JP5129810B2 (ja) | 2007-05-09 | 2013-01-30 | 株式会社三井ハイテック | 積層鉄心及びその製造方法 |
DE102007032872A1 (de) * | 2007-07-12 | 2009-01-15 | Ipgate Ag | Stator für Elektromotor |
CN101755328B (zh) | 2007-07-19 | 2011-08-31 | 积水化学工业株式会社 | 电子器件用胶粘剂 |
JP2009072035A (ja) | 2007-09-18 | 2009-04-02 | Meidensha Corp | 回転電機の回転子コア |
JP5211651B2 (ja) * | 2007-11-15 | 2013-06-12 | パナソニック株式会社 | モータおよびそれを用いた電子機器 |
JP5172367B2 (ja) | 2008-01-23 | 2013-03-27 | 三菱電機株式会社 | 積層コア、積層コアの製造方法、積層コアの製造装置およびステータ |
KR101538193B1 (ko) | 2008-02-15 | 2015-07-20 | 가부시키가이샤 구라레 | 경화성 수지 조성물 및 수지 경화물 |
JP5428218B2 (ja) | 2008-06-23 | 2014-02-26 | 富士電機株式会社 | 永久磁石形回転電機の回転子構造 |
JP2010081659A (ja) | 2008-09-24 | 2010-04-08 | Hitachi Ltd | 電動機及びそれを用いた電動圧縮機 |
JP5701613B2 (ja) | 2009-01-15 | 2015-04-15 | 株式会社カネカ | 硬化性組成物、その硬化物、及びその製造方法 |
JP5084770B2 (ja) | 2009-03-13 | 2012-11-28 | 三菱電機株式会社 | 電動機及び圧縮機及び空気調和機 |
JP2012521649A (ja) | 2009-03-26 | 2012-09-13 | ヴァキュームシュメルツェ ゲーエムベーハー ウント コンパニー カーゲー | 軟磁性材料による積層コア,及び軟磁性の積層コアを形成する接着力によりコア単層板を接合する方法 |
JP2010239691A (ja) * | 2009-03-30 | 2010-10-21 | Denso Corp | 回転電機の固定子及び回転電機 |
JP5444812B2 (ja) | 2009-04-22 | 2014-03-19 | Jfeスチール株式会社 | 高速モータ用コア材料 |
CN102459696B (zh) | 2009-06-17 | 2013-10-16 | 新日铁住金株式会社 | 具有绝缘覆盖膜的电磁钢板及其制造方法 |
JP2011023523A (ja) | 2009-07-15 | 2011-02-03 | Nippon Steel Corp | 良好な熱伝導性を有する電磁鋼板積層コアおよびその製造方法 |
PL2460652T3 (pl) | 2009-07-31 | 2016-07-29 | Nippon Steel & Sumitomo Metal Corp | Laminowana blacha stalowa |
BE1019128A3 (nl) | 2009-11-06 | 2012-03-06 | Atlas Copco Airpower Nv | Gelamelleerde kern van een magneetlager en werkwijze voor het vervaardigen van zulke gelamelleerde kern. |
JPWO2011077830A1 (ja) * | 2009-12-24 | 2013-05-02 | 株式会社安川電機 | 積層コア、この積層コアを備えた電動機および積層コアの製造方法 |
JP5716339B2 (ja) | 2010-01-08 | 2015-05-13 | 大日本印刷株式会社 | 粘接着シートおよびそれを用いた接着方法 |
JP5844963B2 (ja) | 2010-03-19 | 2016-01-20 | 積水化学工業株式会社 | 電子部品用接着剤 |
KR101131743B1 (ko) * | 2010-06-23 | 2012-04-05 | 주식회사 아모텍 | 드럼세탁기의 직결형 구동장치 |
US9231457B2 (en) * | 2010-06-25 | 2016-01-05 | Board Of Regents, The University Of Texas System | Double stator switched reluctance apparatus |
JP5459110B2 (ja) * | 2010-06-30 | 2014-04-02 | 株式会社デンソー | 回転電機の固定子 |
JP2012029494A (ja) | 2010-07-26 | 2012-02-09 | Nissan Motor Co Ltd | 電動機およびその製造方法 |
CN203368163U (zh) * | 2010-08-26 | 2013-12-25 | 三菱电机株式会社 | 旋转电机和用于制造其定子铁芯的定子铁芯制造装置 |
JP5350342B2 (ja) | 2010-09-08 | 2013-11-27 | 三菱電機株式会社 | 同期電動機の回転子 |
JP2012061820A (ja) | 2010-09-17 | 2012-03-29 | Dainippon Printing Co Ltd | 繊維強化複合材料の賦型方法 |
JP2012120299A (ja) | 2010-11-30 | 2012-06-21 | Mitsubishi Electric Corp | ステータコア、回転電機およびステータコアの製造方法 |
JP5809819B2 (ja) | 2011-03-18 | 2015-11-11 | 富士重工業株式会社 | 回転電機 |
DE102011006682A1 (de) * | 2011-04-01 | 2012-10-04 | Aloys Wobben | Polschuh |
DE102011079843A1 (de) * | 2011-07-26 | 2013-01-31 | Siemens Aktiengesellschaft | Elektrische Maschine mit massenarmer Bauart in magnetisch aktiven Teilen |
JP5730736B2 (ja) * | 2011-10-04 | 2015-06-10 | 日立オートモティブシステムズ株式会社 | 永久磁石式回転電機および永久磁石式回転電機を備えた車両 |
JP5915075B2 (ja) | 2011-10-21 | 2016-05-11 | Jfeスチール株式会社 | 積層コアの製造方法 |
IN2014DN07828A (ja) | 2012-02-29 | 2015-05-15 | Bridgestone Corp | |
JP5966445B2 (ja) | 2012-03-01 | 2016-08-10 | 住友ベークライト株式会社 | 固定用樹脂組成物、ロータ、および自動車 |
KR101995611B1 (ko) | 2012-03-01 | 2019-07-02 | 스미또모 베이크라이트 가부시키가이샤 | 로터 고정용 수지 조성물, 로터, 및 자동차 |
DE102012005795A1 (de) | 2012-03-14 | 2013-09-19 | Kienle + Spiess Gmbh | Lamellenpaket und Verfahren zu seiner Herstellung |
JP2013194130A (ja) | 2012-03-19 | 2013-09-30 | Nitto Denko Corp | 塗膜保護シート |
JP2013253153A (ja) | 2012-06-06 | 2013-12-19 | Mitsubishi Chemicals Corp | エポキシ樹脂、エポキシ樹脂組成物、硬化物及び光学部材 |
JP2014014231A (ja) * | 2012-07-04 | 2014-01-23 | Mitsubishi Heavy Ind Ltd | 電動モータ |
JP2014019777A (ja) | 2012-07-18 | 2014-02-03 | Nitto Denko Corp | 表面保護シート |
US9325056B2 (en) * | 2012-09-11 | 2016-04-26 | Alcatel Lucent | Radiation efficient integrated antenna |
JP6134497B2 (ja) | 2012-11-08 | 2017-05-24 | 京セラ株式会社 | 積層コアの製造方法 |
JPWO2014102915A1 (ja) | 2012-12-26 | 2017-01-12 | 株式会社日立製作所 | 低融点ガラス樹脂複合材料と、それを用いた電子・電気機器、アキシャルギャップモータ |
JP5896937B2 (ja) * | 2013-02-08 | 2016-03-30 | 三菱電機株式会社 | 分割鉄心、及びこの分割鉄心を用いた固定子、並びにこの固定子を備えた回転電機 |
JP2015012756A (ja) * | 2013-07-01 | 2015-01-19 | 日本精工株式会社 | ダイレクトドライブモータ |
US9490667B2 (en) | 2013-07-23 | 2016-11-08 | General Electric Company | Apparatus and system for attaching integral spacers to laminations |
KR101539849B1 (ko) * | 2013-09-23 | 2015-07-28 | 뉴모텍(주) | 절연 코팅에 적합한 구조를 갖는 모터의 적층 코어 |
JP6164039B2 (ja) | 2013-10-21 | 2017-07-19 | アイシン・エィ・ダブリュ株式会社 | 積層鉄心の製造方法 |
JP6065032B2 (ja) | 2014-01-29 | 2017-01-25 | Jfeスチール株式会社 | 積層鉄心製造方法および積層鉄心 |
JP6064923B2 (ja) | 2014-01-29 | 2017-01-25 | Jfeスチール株式会社 | 積層鉄心の製造方法 |
JP6248711B2 (ja) * | 2014-03-06 | 2017-12-20 | 株式会社デンソー | 回転電機の固定子 |
JP6383202B2 (ja) * | 2014-07-24 | 2018-08-29 | 株式会社三井ハイテック | 積層鉄心の製造方法及び積層鉄心 |
KR101967690B1 (ko) | 2014-07-29 | 2019-04-10 | 제이에프이 스틸 가부시키가이샤 | 적층용 전자 강판, 적층형 전자 강판, 적층형 전자 강판의 제조 방법 및, 자동차 모터용 철심 |
JP6431316B2 (ja) | 2014-08-26 | 2018-11-28 | 日東シンコー株式会社 | モーター用絶縁シート |
JP6479392B2 (ja) | 2014-09-30 | 2019-03-06 | 株式会社三井ハイテック | 積層鉄心及びその製造方法 |
JP6303978B2 (ja) * | 2014-10-27 | 2018-04-04 | トヨタ自動車株式会社 | 回転電機のステータ |
JP6247630B2 (ja) | 2014-12-11 | 2017-12-13 | Ckd株式会社 | コイルの冷却構造 |
JP6587800B2 (ja) | 2014-12-26 | 2019-10-09 | Jfeスチール株式会社 | 積層鉄心の製造方法 |
WO2016113876A1 (ja) * | 2015-01-15 | 2016-07-21 | 三菱電機株式会社 | 回転電機 |
JP2016140134A (ja) | 2015-01-26 | 2016-08-04 | アイシン・エィ・ダブリュ株式会社 | モータコアおよびモータコアの製造方法 |
JP6249417B2 (ja) | 2015-03-09 | 2017-12-20 | 三菱電機株式会社 | 回転電機および電動パワーステアリング装置 |
JP6432397B2 (ja) | 2015-03-12 | 2018-12-05 | アイシン・エィ・ダブリュ株式会社 | モータの製造方法およびモータコア |
JP6400833B2 (ja) * | 2015-03-16 | 2018-10-03 | 黒田精工株式会社 | 積層鉄心の製造方法および積層鉄心の製造装置 |
JP6495092B2 (ja) * | 2015-05-07 | 2019-04-03 | 株式会社三井ハイテック | 分割型積層鉄心及びその製造方法 |
US10476321B2 (en) * | 2015-05-27 | 2019-11-12 | Johnson Electric International AG | Magnetic core with multiple teeth having four different teeth tips axially overlapping |
JP2016226170A (ja) * | 2015-05-29 | 2016-12-28 | トヨタ自動車株式会社 | 電動機用積層コア |
JP6627270B2 (ja) | 2015-06-12 | 2020-01-08 | 住友ベークライト株式会社 | 整流子 |
JP2017011863A (ja) | 2015-06-22 | 2017-01-12 | 新日鐵住金株式会社 | モータ鉄心用積層電磁鋼板およびその製造方法 |
JP2017028911A (ja) | 2015-07-24 | 2017-02-02 | 日東シンコー株式会社 | 回転電機用絶縁紙 |
JPWO2017033873A1 (ja) * | 2015-08-21 | 2018-08-09 | 吉川工業株式会社 | ステータコア及びそれを備えたモータ |
KR20180018771A (ko) * | 2015-08-21 | 2018-02-21 | 미쓰비시덴키 가부시키가이샤 | 영구자석 매입형 모터, 압축기, 및 냉동 공조 장치 |
JP6429129B2 (ja) | 2015-08-26 | 2018-11-28 | 日産自動車株式会社 | ロータの製造方法 |
JP2017046480A (ja) * | 2015-08-27 | 2017-03-02 | 日産自動車株式会社 | ロータコアの製造方法および回転電機のロータコア |
JP6191801B1 (ja) | 2015-10-07 | 2017-09-06 | 大日本印刷株式会社 | 接着シートセットおよび物品の製造方法 |
JP6560588B2 (ja) | 2015-10-08 | 2019-08-14 | 住友電気工業株式会社 | 誘導加熱装置、及び発電システム |
JP2017075279A (ja) | 2015-10-16 | 2017-04-20 | 株式会社菱晃 | 接着剤及び接合体 |
CN108352734B (zh) | 2015-11-25 | 2019-06-04 | 三菱电机株式会社 | 旋转电机及旋转电机的制造方法 |
CN108292866B (zh) | 2015-11-27 | 2021-03-12 | 日本电产株式会社 | 马达和马达的制造方法 |
US10426044B2 (en) | 2015-12-18 | 2019-09-24 | Dic Corporation | Thermosetting adhesive sheet, reinforcement-part-equipped flexible printed circuit, method for manufacturing reinforcement-part-equipped flexible printed circuit, and electronic device |
JP6680351B2 (ja) | 2016-02-25 | 2020-04-15 | 日立化成株式会社 | エポキシ樹脂組成物、半硬化エポキシ樹脂組成物、硬化エポキシ樹脂組成物、成形物及び成形硬化物 |
JP6694057B2 (ja) | 2016-03-31 | 2020-05-13 | デンカ株式会社 | 組成物 |
CN109155574B (zh) | 2016-05-20 | 2020-11-06 | 日本电产株式会社 | 定子铁芯的制造方法 |
GB2550593A (en) * | 2016-05-24 | 2017-11-29 | Vacuumschmelze Gmbh & Co Kg | Soft magnetic laminated core, method of producing a laminated core for a stator and/or rotor of an electric machine |
JP6874550B2 (ja) | 2016-08-01 | 2021-05-19 | 株式会社リコー | インク、インク容器、画像形成方法、画像形成装置、画像形成物、及び液体吐出装置 |
CN107674499B (zh) | 2016-08-01 | 2021-07-13 | 株式会社理光 | 墨水,墨水容器,液体排出装置,图像形成方法及其装置 |
JP6376706B2 (ja) | 2016-08-29 | 2018-08-22 | 本田技研工業株式会社 | 積層鋼板の製造方法および製造装置 |
DE112017004387T5 (de) * | 2016-09-01 | 2019-05-16 | Mitsubishi Electric Corporation | Laminierter kern, herstellungsverfahren für laminierte kerne sowie anker, der einen laminierten kern verwendet |
WO2018051407A1 (ja) * | 2016-09-13 | 2018-03-22 | 三菱電機株式会社 | ステータコア、ステータ、電動機、駆動装置、圧縮機、空気調和機、及びステータコアの製造方法 |
JP6848314B2 (ja) | 2016-10-03 | 2021-03-24 | 日本製鉄株式会社 | ステータコアおよび回転電機 |
JP6724735B2 (ja) | 2016-11-08 | 2020-07-15 | トヨタ自動車株式会社 | 回転電機のステータ |
KR101874918B1 (ko) | 2016-11-15 | 2018-07-06 | 지에스칼텍스 주식회사 | 저비중 폴리프로필렌 수지 조성물 및 이를 이용한 자동차 내장재용 성형품 |
CN108155730B (zh) | 2016-12-06 | 2022-02-25 | 松下电器产业株式会社 | 铁芯和电机 |
JP6905905B2 (ja) | 2016-12-06 | 2021-07-21 | パナソニック株式会社 | 鉄心およびモータ |
CN109643603B (zh) | 2016-12-07 | 2021-04-13 | 松下电器产业株式会社 | 铁芯和电动机 |
US10971975B2 (en) * | 2016-12-14 | 2021-04-06 | American Axle & Manufacturing, Inc. | System and method for stator slot encapsulation using injected polymer |
JP6543608B2 (ja) | 2016-12-22 | 2019-07-10 | 株式会社三井ハイテック | 積層鉄心の製造方法及び積層鉄心の製造装置 |
FR3062970B1 (fr) * | 2017-02-13 | 2021-07-23 | Valeo Equip Electr Moteur | Stator de machine electrique tournante |
JP2018138634A (ja) | 2017-02-24 | 2018-09-06 | 三菱ケミカル株式会社 | 樹脂組成物および該樹脂組成物を用いた半導体装置 |
JP6866696B2 (ja) | 2017-03-07 | 2021-04-28 | 日本製鉄株式会社 | 無方向性電磁鋼板およびその製造方法、並びにモータコアおよびその製造方法 |
JPWO2018199269A1 (ja) | 2017-04-26 | 2020-04-23 | 東亞合成株式会社 | 接着剤組成物 |
US11496005B2 (en) | 2017-05-10 | 2022-11-08 | Mitsubishi Electric Corporation | Stator, electric motor, compressor, refrigerating and air conditioning apparatus, and method for manufacturing stator |
MX2019013689A (es) | 2017-05-23 | 2020-07-14 | Three Bond Co Ltd | Metodo de fabricacion de placa de acero laminado, placa de acero laminado, motor y composicion adhesiva para la placa de acero laminado. |
JP2018201303A (ja) | 2017-05-29 | 2018-12-20 | 日本電産株式会社 | モータ |
WO2019039518A1 (ja) * | 2017-08-25 | 2019-02-28 | 三菱電機株式会社 | 分割コア連結体および電機子の製造方法 |
DE102017010685A1 (de) * | 2017-11-16 | 2019-05-16 | Wieland-Werke Ag | Kurzschlussläufer und Verfahren zur Herstellung eines Kurzschlussläufers |
JP2019106756A (ja) * | 2017-12-08 | 2019-06-27 | トヨタ自動車株式会社 | ステータの製造方法 |
JP6826566B2 (ja) * | 2018-08-06 | 2021-02-03 | 本田技研工業株式会社 | 回転電機用ステータコアおよび回転電機 |
WO2020072734A1 (en) * | 2018-10-04 | 2020-04-09 | Montana Technologies, Llc | Rotor and stator for high speed axial flux machine |
US11362552B2 (en) * | 2018-10-09 | 2022-06-14 | Ford Global Technologies, Llc | Electric machine component and method to fabricate |
US11527927B2 (en) * | 2018-11-20 | 2022-12-13 | Crs Holdings, Llc | Method of making a multi-material segmented stator for a rotating electric machine and a stator made by said method |
JP6863525B2 (ja) | 2018-12-17 | 2021-04-21 | 日本製鉄株式会社 | 積層コアおよび回転電機 |
CA3131662A1 (en) | 2018-12-17 | 2020-06-25 | Nippon Steel Corporation | Laminated core and electric motor |
BR112021008058A2 (pt) | 2018-12-17 | 2021-08-03 | Nippon Steel Corporation | núcleo laminado e motor elétrico |
EP3902106A4 (en) | 2018-12-17 | 2022-11-30 | Nippon Steel Corporation | LAMINATED-BONDED CORE AND METHOD FOR MANUFACTURING IT AND ROTARY ELECTRIC MACHINE |
KR20210094604A (ko) | 2018-12-17 | 2021-07-29 | 닛폰세이테츠 가부시키가이샤 | 스테이터용 접착 적층 코어, 그 제조 방법 및 회전 전기 기기 |
EA202192066A1 (ru) * | 2018-12-17 | 2021-11-19 | Ниппон Стил Корпорейшн | Шихтованный сердечник и электродвигатель |
WO2020129948A1 (ja) | 2018-12-17 | 2020-06-25 | 日本製鉄株式会社 | 積層コア、その製造方法及び回転電機 |
EP3902113A4 (en) | 2018-12-17 | 2022-10-12 | Nippon Steel Corporation | LAMINATED CORE AND ELECTRIC ROTATING MACHINE |
CN113169638A (zh) | 2018-12-17 | 2021-07-23 | 日本制铁株式会社 | 定子用粘合层叠芯及旋转电机 |
TWI720745B (zh) | 2018-12-17 | 2021-03-01 | 日商日本製鐵股份有限公司 | 定子用接著積層鐵芯、其製造方法、及旋轉電機 |
KR102607691B1 (ko) | 2018-12-17 | 2023-11-30 | 닛폰세이테츠 가부시키가이샤 | 스테이터용 접착 적층 코어 및 회전 전기 기계 |
WO2020129935A1 (ja) | 2018-12-17 | 2020-06-25 | 日本製鉄株式会社 | 積層コアおよび回転電機 |
CN113196634A (zh) | 2018-12-17 | 2021-07-30 | 日本制铁株式会社 | 层叠铁芯及旋转电机 |
US20220006336A1 (en) | 2018-12-17 | 2022-01-06 | Nippon Steel Corporation | Adhesively-laminated core for stator and electric motor |
EA202192068A1 (ru) | 2018-12-17 | 2021-11-08 | Ниппон Стил Корпорейшн | Шихтованный сердечник, способ изготовления шихтованного сердечника и электродвигатель |
EA202192072A1 (ru) | 2018-12-17 | 2021-11-09 | Ниппон Стил Корпорейшн | Шихтованный сердечник и электродвигатель |
KR102643516B1 (ko) * | 2018-12-17 | 2024-03-06 | 닛폰세이테츠 가부시키가이샤 | 적층 코어 및 회전 전기 기계 |
TWI753335B (zh) | 2018-12-17 | 2022-01-21 | 日商日本製鐵股份有限公司 | 積層鐵芯、鐵芯塊、旋轉電機及鐵芯塊的製造方法 |
WO2020168137A1 (en) * | 2019-02-13 | 2020-08-20 | Linear Labs, Inc. | A method of manufacturing a three-dimensional flux structure for circumferential flux machines |
DE102019107422A1 (de) * | 2019-03-22 | 2020-09-24 | Vacuumschmelze Gmbh & Co. Kg | Band aus einer Kobalt-Eisen-Legierung, Blechpaket und Verfahren zum Herstellen eines Bands aus einer Kobalt-Eisen-Legierung |
EP3748816A1 (en) * | 2019-06-03 | 2020-12-09 | Hamilton Sundstrand Corporation | Electrical machines |
DE102019125862A1 (de) * | 2019-09-25 | 2021-03-25 | Vacuumschmelze Gmbh & Co. Kg | Mehrteiliger Stator, elektrische Maschine sowie Verfahren zur Herstellung eines mehrteiligen Stators und einer elektrischen Maschine |
US11705625B2 (en) * | 2020-06-04 | 2023-07-18 | Tdk Corporation | Antenna device |
-
2019
- 2019-12-17 EA EA202192066A patent/EA202192066A1/ru unknown
- 2019-12-17 KR KR1020217016159A patent/KR20210082511A/ko not_active Application Discontinuation
- 2019-12-17 TW TW108146105A patent/TWI717154B/zh active
- 2019-12-17 CN CN201980079500.XA patent/CN113169594A/zh active Pending
- 2019-12-17 KR KR1020237043815A patent/KR20240005116A/ko not_active Application Discontinuation
- 2019-12-17 US US17/292,762 patent/US11973369B2/en active Active
- 2019-12-17 JP JP2020561425A patent/JP7412351B2/ja active Active
- 2019-12-17 CA CA3131661A patent/CA3131661C/en active Active
- 2019-12-17 WO PCT/JP2019/049260 patent/WO2020129923A1/ja active Search and Examination
- 2019-12-17 SG SG11202108986QA patent/SG11202108986QA/en unknown
- 2019-12-17 EP EP19899180.4A patent/EP3902110A4/en active Pending
- 2019-12-17 BR BR112021006549A patent/BR112021006549A2/pt unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002088107A (ja) * | 2000-09-18 | 2002-03-27 | Denki Kagaku Kogyo Kk | 硬化性樹脂組成物、硬化体、接着剤組成物及び接合体 |
JP2015136228A (ja) | 2014-01-17 | 2015-07-27 | 三菱電機株式会社 | 積層鉄心、固定子、積層鉄心の製造方法、固定子の製造方法 |
WO2018138864A1 (ja) * | 2017-01-27 | 2018-08-02 | 三菱電機株式会社 | 固定子、電動機、圧縮機、および冷凍空調装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP3902110A4 |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11710990B2 (en) | 2018-12-17 | 2023-07-25 | Nippon Steel Corporation | Laminated core with circumferentially spaced adhesion parts on teeth |
US11742129B2 (en) | 2018-12-17 | 2023-08-29 | Nippon Steel Corporation | Adhesively-laminated core, manufacturing method thereof, and electric motor |
US11855485B2 (en) | 2018-12-17 | 2023-12-26 | Nippon Steel Corporation | Laminated core, method of manufacturing same, and electric motor |
US11863017B2 (en) | 2018-12-17 | 2024-01-02 | Nippon Steel Corporation | Laminated core and electric motor |
US11915860B2 (en) | 2018-12-17 | 2024-02-27 | Nippon Steel Corporation | Laminated core and electric motor |
US11923130B2 (en) | 2018-12-17 | 2024-03-05 | Nippon Steel Corporation | Laminated core and electric motor |
US11979059B2 (en) | 2018-12-17 | 2024-05-07 | Nippon Steel Corporation | Laminated core and electric motor |
US11990795B2 (en) | 2018-12-17 | 2024-05-21 | Nippon Steel Corporation | Adhesively-laminated core for stator, method of manufacturing same, and electric motor |
US11996231B2 (en) | 2018-12-17 | 2024-05-28 | Nippon Steel Corporation | Laminated core and electric motor |
Also Published As
Publication number | Publication date |
---|---|
KR20210082511A (ko) | 2021-07-05 |
BR112021006549A2 (pt) | 2021-07-06 |
JP7412351B2 (ja) | 2024-01-12 |
TWI717154B (zh) | 2021-01-21 |
SG11202108986QA (en) | 2021-09-29 |
EP3902110A4 (en) | 2022-10-05 |
CA3131661C (en) | 2023-11-21 |
CN113169594A (zh) | 2021-07-23 |
TW202037039A (zh) | 2020-10-01 |
CA3131661A1 (en) | 2020-06-25 |
JPWO2020129923A1 (ja) | 2021-10-07 |
EP3902110A1 (en) | 2021-10-27 |
US11973369B2 (en) | 2024-04-30 |
KR20240005116A (ko) | 2024-01-11 |
US20210399594A1 (en) | 2021-12-23 |
EA202192066A1 (ru) | 2021-11-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2020129923A1 (ja) | 積層コアおよび回転電機 | |
WO2020129924A1 (ja) | 積層コアおよび回転電機 | |
JP7055209B2 (ja) | 積層コアおよび回転電機 | |
JP7111182B2 (ja) | 積層コアおよび回転電機 | |
JP7486434B2 (ja) | ステータ用接着積層コアおよび回転電機 | |
WO2020129940A1 (ja) | 積層コアおよび回転電機 | |
WO2020129935A1 (ja) | 積層コアおよび回転電機 | |
WO2020129929A1 (ja) | ステータ用接着積層コアおよび回転電機 | |
WO2020129921A1 (ja) | ステータ用接着積層コアおよび回転電機 | |
WO2020262298A1 (ja) | コアブロック、積層コアおよび回転電機 | |
EA043399B1 (ru) | Шихтованный сердечник и электродвигатель |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 19899180 Country of ref document: EP Kind code of ref document: A1 |
|
DPE2 | Request for preliminary examination filed before expiration of 19th month from priority date (pct application filed from 20040101) | ||
ENP | Entry into the national phase |
Ref document number: 2020561425 Country of ref document: JP Kind code of ref document: A |
|
REG | Reference to national code |
Ref country code: BR Ref legal event code: B01A Ref document number: 112021006549 Country of ref document: BR |
|
ENP | Entry into the national phase |
Ref document number: 20217016159 Country of ref document: KR Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 112021006549 Country of ref document: BR Kind code of ref document: A2 Effective date: 20210406 |
|
ENP | Entry into the national phase |
Ref document number: 2019899180 Country of ref document: EP Effective date: 20210719 |
|
ENP | Entry into the national phase |
Ref document number: 3131661 Country of ref document: CA |