WO2023095444A1 - モータ - Google Patents
モータ Download PDFInfo
- Publication number
- WO2023095444A1 WO2023095444A1 PCT/JP2022/036706 JP2022036706W WO2023095444A1 WO 2023095444 A1 WO2023095444 A1 WO 2023095444A1 JP 2022036706 W JP2022036706 W JP 2022036706W WO 2023095444 A1 WO2023095444 A1 WO 2023095444A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- magnet
- rotor
- resin portion
- axial direction
- yoke
- Prior art date
Links
- 229920005989 resin Polymers 0.000 claims abstract description 76
- 239000011347 resin Substances 0.000 claims abstract description 76
- 230000002093 peripheral effect Effects 0.000 claims description 18
- 230000004907 flux Effects 0.000 claims description 16
- 230000004888 barrier function Effects 0.000 claims description 9
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 239000000696 magnetic material Substances 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 230000004048 modification Effects 0.000 description 14
- 238000012986 modification Methods 0.000 description 14
- 238000001514 detection method Methods 0.000 description 7
- 230000006866 deterioration Effects 0.000 description 6
- 230000017525 heat dissipation Effects 0.000 description 4
- 230000004323 axial length Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910001172 neodymium magnet Inorganic materials 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2786—Outer rotors
- H02K1/2787—Outer rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/2789—Outer rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2791—Surface mounted magnets; Inset magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
- H02K11/215—Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements
Definitions
- the present invention relates to motors.
- the temperature of the rotor rises due to frictional heat from rotation and heat transferred from the stator coil. At that time, if the heat radiation from the rotor is insufficient, the motor efficiency is lowered due to the temperature rise.
- the object is to provide a motor that can suppress a decrease in motor efficiency.
- the motor includes a rotor and a stator radially facing the rotor.
- the rotor includes a yoke, magnets, and a resin portion covering the yoke and the magnets. The resin portion is arranged adjacent to the magnet in the circumferential direction.
- a decrease in motor efficiency can be suppressed.
- FIG. 1 is a top perspective view showing an example of a molded rotor according to the embodiment.
- FIG. 2 is a top perspective view showing an example of a rotor before being covered with resin in the embodiment.
- FIG. 3 is a side cross-sectional view showing an example of the molded rotor in the embodiment.
- FIG. 4 is another side sectional view showing an example of the molded rotor in the embodiment.
- FIG. 5 is an enlarged top view showing an example of the rotor before being covered with resin in the embodiment.
- FIG. 6 is a cross-sectional perspective view showing an example of a rotor in the embodiment.
- FIG. 7 is an enlarged cross-sectional view showing an example of the molded rotor in the embodiment.
- FIG. 1 is a top perspective view showing an example of a molded rotor according to the embodiment.
- FIG. 2 is a top perspective view showing an example of a rotor before being covered with resin in the embodiment.
- FIG. 3 is a
- FIG. 8 is an enlarged side sectional view showing an example of the molded rotor in the embodiment.
- FIG. 9 is another enlarged side cross-sectional view showing an example of the molded rotor in the embodiment.
- FIG. 10 is a bottom perspective view showing an example of the molded rotor in the embodiment.
- FIG. 11 is a side cross-sectional view showing an example of the motor in the embodiment.
- FIG. 12 is a bottom perspective view showing an example of a molded rotor in the first modified example.
- FIG. 13 is a top perspective view showing an example of a molded rotor in the first modified example.
- FIG. 14 is a side sectional view showing an example of the motor in the first modified example.
- FIG. 15 is a top perspective view showing an example of a molded rotor in the second modified example.
- FIG. 16 is a top perspective view showing an example of a molded rotor in the third modified example.
- FIG. 17 is a top perspective view showing an example of the rotor before being covered with resin in the third modification.
- the illustrated axial direction is the direction in which the shaft 19, which will be described later, extends. Let one direction be the 1st direction among axial directions, and let the other be the 2nd direction.
- the illustrated radial direction is the radial direction orthogonal to the axial direction in the embodiment.
- the illustrated circumferential direction is the direction that coincides with the rotation direction of the motor 1 in the embodiment.
- FIG. 1 is a top perspective view showing an example of a molded rotor according to the embodiment.
- FIG. 2 is a top perspective view showing an example of a rotor before being covered with resin in the embodiment.
- the rotor covered with resin may be referred to as molded rotor 5 and the rotor before being covered with resin may be referred to as rotor 2 .
- the molded rotor 5 shown in FIG. 1 is formed by covering the rotor 2 shown in FIG.
- the resin member 60 is formed by, for example, filling the rotor 2 with the magnets 40 in a mold, filling the mold with liquid resin, and curing the resin.
- the magnet 40 is covered with the resin member 60 and is not visually recognized.
- the resin forming the resin member 60 is non-magnetic or soft magnetic, and contains, for example, aluminum or silicon.
- the resin may be a thermosetting resin or a thermoplastic resin. Note that the resin member 60 is an example of a resin portion.
- the rotor 2 includes a rotor core 20 and magnets 40.
- the rotor core 20 is configured by laminating a plurality of flat cores made of electromagnetic steel sheets.
- the rotor core 20 includes an annular portion 23 and a yoke 24 protruding radially outward from the annular portion 23 .
- the yoke 24 is formed with, for example, a crimped portion 29 for fitting flat cores to each other.
- the magnet 40 is made of, for example, a rare earth magnet such as a neodymium magnet. Also, the magnet 40 may be a bonded magnet or a sintered magnet.
- the magnet 40 includes a first magnet 41 and a second magnet 42. As shown in FIG. 2 , the first magnet 41 is arranged in the first hole 21 of the rotor core 20 and the second magnet 42 is arranged in the second hole 22 of the rotor core 20 .
- the first magnet 41 is shorter than the first hole 21 in the radial direction.
- the radially outer surface 45 of the first magnet 41 is positioned radially inward of the outer peripheral side end surface 25 of the yoke 24 .
- a gap in a portion of the first hole portion 21 inside the radially inner end face 46 of the first magnet 41 constitutes a flux barrier 26.
- FIG. 5 is an enlarged top view showing an example of the rotor before being covered with resin in the embodiment.
- FIG. 5 is an enlarged view of the portion indicated by the frame F1 in FIG.
- the flux barrier 26 is for preventing the magnetic flux flowing to the stator 10 side from decreasing due to the magnetic flux emitted from the magnetic poles of the magnets 40 of the rotor 2 flowing through the rotor 2 . Moreover, as shown in FIG. 5, the flux barriers 26 are formed at positions sandwiched between the second holes 22 adjacent to each other in the circumferential direction.
- the molded rotor 5 is formed by filling the rotor 2 shown in FIG.
- the resin member 60 is also formed at positions adjacent to the first magnet 41 and the second magnet 42 in the circumferential direction.
- FIG. 6 is a cross-sectional perspective view showing an example of a rotor in the embodiment.
- FIG. 7 is an enlarged cross-sectional view showing an example of the molded rotor in the embodiment.
- FIG. 6 shows a cross section taken along line AA of FIG.
- FIG. 7 is an enlarged view of the portion indicated by frame F2 in FIG.
- the radial portion 51 of the resin member 60 extends radially and is formed between the surface 47 of the first magnet 41 and the yoke 24 in the circumferential direction. That is, the radial portion 51 of the resin member 60 is arranged adjacent to the first magnet 41 in the circumferential direction, and the first magnet 41 faces the yoke 24 in the circumferential direction with the radial portion 51 interposed therebetween.
- the radially outer surface 45 of the first magnet 41 is covered with the outer peripheral portion 52 of the resin member 60 .
- the end face 25 on the outer peripheral side of the yoke 24 of the rotor 2 is exposed without being covered with the resin member 60, as shown in FIGS.
- the radially outer surface 55 of the outer peripheral portion 52 is formed flush with the outer peripheral end surface 25 of the yoke 24 of the rotor core 20, as shown in FIGS.
- the radially outer surface 55 and the outer peripheral end surface 25 of the yoke 24 are formed continuously.
- the second hole 22 shown in FIG. 5 is also filled with resin.
- the mold rotor 5 includes a thin portion 61, a stepped portion 62, and a recessed portion 63 in the first axial direction.
- the thin portion 61, the stepped portion 62, and the recessed portion 63 are all formed in an annular shape and formed substantially concentrically from the radially outer side to the radially inner side.
- the thin portion 61 covers the first magnet 41 from the first axial direction side on the outer peripheral side of the rotor 2 in the radial direction.
- the thin portion 61 does not cover the yoke 24 of the rotor 2, as shown in FIG. That is, the yoke 24 is exposed in the first axial direction.
- FIGS. 3 and 4 the recessed portion 63 protrudes from the thin portion 61 toward the first direction in the axial direction.
- the end surface of the concave portion 63 on the first axial direction side is positioned closer to the second axial direction side than the end surface of the stepped portion 62 on the first axial direction side.
- FIG. 8 is an enlarged side sectional view showing an example of the molded rotor in the embodiment.
- FIG. 9 is another enlarged side cross-sectional view showing an example of the molded rotor in the embodiment. 8 is an enlarged view of the portion indicated by the frame F3 in FIG. 3, and FIG. 9 is an enlarged view of the portion indicated by the frame F4 in FIG.
- the recess 63 is arranged at a position facing the flux barrier 26 of the rotor core 20 and the second magnet 42 in the axial direction.
- resin injection traces 69 forming the resin member 60 are formed in the concave portion 63 at approximately equal intervals in the circumferential direction.
- the injection trace 69 is formed at a position facing the flux barrier 26 and not at a position facing the second magnet 42 in the axial direction.
- the resin injected into the flux barrier 26 further forms an inner surface portion 56 as shown in FIG.
- FIG. 10 is a bottom perspective view showing an example of the molded rotor in the embodiment.
- the first magnet 41 is covered by the first lower surface portion 64 of the resin member 60 from the second axial direction side
- the second magnet 42 is covered by the second lower surface portion 65 of the resin member 60 . It is covered from the second direction side.
- the thickness (size in the axial direction) of the first lower surface portion 64 and the second lower surface portion 65 is substantially the same as the thickness of the thin portion 61 .
- the yoke 24 is exposed without being covered with the resin member 60 also in the second axial direction.
- FIG. 11 is a side cross-sectional view showing an example of the motor in the embodiment.
- the motor 1 in the embodiment is a so-called inner rotor type motor in which the stator 10 is arranged radially outside the molded rotor 5 .
- the stator 10 includes a stator core 11, insulators 12, and coils 13.
- a substrate 15 is further mounted on the stator 10 .
- the mold rotor 5 is rotatably supported by the shaft 19 via the bearing 18 .
- the motor 1 is housed in a housing 17 .
- the motor 1 further includes a sensor 31.
- the sensor 31 detects, for example, the rotational speed, rotational angle, etc. of the molded rotor 5 by detecting the magnetic flux of the first magnet 41 of the molded rotor 5 .
- the sensor 31 is supported by, for example, a sensor holder 32 fixed to the housing 17 .
- the sensor 31 is arranged on the first direction side in the axial direction, and faces the molded rotor 5 arranged on the second direction side in the axial direction while being spaced apart in the axial direction.
- the mold rotor 5 is arranged such that the thin portion 61, the stepped portion 62 and the recessed portion 63 are located on the axial first direction side.
- the sensor 31 and the first magnet 41 of the mold rotor 5 face each other with the thin portion 61 interposed therebetween.
- the end surface of the thin portion 61 on the first direction side in the axial direction is located on the second direction side in the axial direction with respect to the end surface of the stepped portion 62 on the first direction side in the axial direction.
- the motor 1 in the embodiment includes the rotor 2 and the stator 10 facing the rotor 2 in the radial direction.
- the rotor 2 includes a yoke 24 , magnets 41 , and a resin member 60 covering the yoke 24 and the magnets 41 .
- the resin member 60 is arranged adjacent to the magnet 41 in the circumferential direction. According to such a configuration, the surface area of the resin member 60 in contact with the magnet 41 can be increased, so that the stability of the magnet 41 is improved, and heat dissipation from the rotor 2 is improved, thereby preventing a decrease in motor efficiency. can be suppressed.
- FIG. 12 is a bottom perspective view showing an example of a molded rotor in the first modified example.
- the same parts as those shown in the previously described drawings are given the same reference numerals, and overlapping explanations are omitted.
- a concave portion 73 is formed in the surface of the mold rotor 7 on the second axial direction side in the first modified example, and an injection mark 79 is formed in the concave portion 73 .
- the shapes of the recess 73 and the injection trace 79 are substantially the same as the shapes of the recess 63 and the injection trace 69 formed on the first axial direction side of the mold rotor 5 shown in FIG.
- the thickness (size in the axial direction) of the first lower surface portion 71 of the molded rotor 7 is greater than the thickness of the thin portion 61 of the molded rotor 5 in the embodiment.
- the first magnets 41 are covered by the first upper surface portion 74 of the resin member 70 from the axial first direction side
- the second magnets 42 are covered by the first upper surface portion 74 of the resin member 70 . 2 is covered from the first axial direction side by the upper surface portion 75 .
- a portion corresponding to the stepped portion 62 is not formed on either the first direction side or the second direction side in the axial direction.
- FIG. 14 is a side sectional view showing an example of the motor in the first modified example.
- a motor 1 ⁇ /b>A in the first modification includes a molded rotor 7 instead of the molded rotor 5 . 14, illustration of the bearing 18, the shaft 19, etc. is omitted.
- the senor 31 faces the first upper surface portion 74 of the mold rotor 7 in the axial direction. That is, the sensor 31 and the first magnet 41 of the mold rotor 7 face each other with the first upper surface portion 74 interposed therebetween.
- the thickness (size in the axial direction) of the first upper surface portion 74 is small, it is possible to suppress deterioration in detection accuracy, as in the embodiment.
- the thickness of the first lower surface portion 71 is not limited to this, and the thickness of the first lower surface portion 71 is greater than the thickness of the first upper surface portion 74. can also be large. Also in this configuration, since the thickness of the first upper surface portion 74 is small, it is possible to suppress deterioration in detection accuracy.
- the end face of the yoke 24 on the second axial direction side are also covered with the resin member 70 .
- the surface area of the resin member 70 can be increased, so that the heat dissipation from the rotor 2 can be further improved.
- the thickness of the first upper surface portion 74 facing the sensor 31 in the axial direction is small, it is possible to suppress deterioration in the detection accuracy of the sensor 31 .
- the first lower surface portion 64 of the molded rotor 5 faces the sensor 31 arranged on the first direction side.
- the thickness (size in the axial direction) of the first lower surface portion 64 is small, deterioration in the detection accuracy of the sensor 31 can be suppressed.
- FIG. 15 is a top perspective view showing an example of a molded rotor in the second modified example.
- the molded rotor 8 shown in FIG. 15 further includes a ring portion 68 made of resin on the outer peripheral portion of the surface on the first direction side of the molded rotor 5 in the embodiment.
- the ring portion 68 may be formed integrally with the resin member 60 such as the thin portion 61 or may be formed as a separate member and attached to the rotor core 20 .
- FIG. 16 is a top perspective view showing an example of a molded rotor in the third modified example.
- FIG. 17 is a top perspective view showing an example of the rotor before being covered with resin in the third modification.
- the rotor 3 of the third modification includes a rotor core 80, a first magnet M1, a second magnet M2 and a third magnet M3.
- the first magnet M1 is arranged between the yoke 84 of the rotor core 80 and the annular portion 83 in the radial direction.
- the second magnet M2 and the third magnet M3 are arranged between two yokes 84 adjacent in the circumferential direction.
- the first magnet M1, the second magnet M2 and the third magnet M3 are arranged adjacent to each other in the circumferential direction.
- the first radial portion 92 of the resin member 90 in the molded rotor 9 is formed between the second magnet M2 and the yoke 84 in the circumferential direction.
- the second radial portion 93 of the resin member 90 is formed between the third magnet M3 and the yoke 84 in the circumferential direction.
- the resin member 90 may also be formed in the gap between the second magnet M2 and the third magnet M3 in the circumferential direction.
- the radially outer surfaces of the second magnet M2 and the third magnet M3 are covered with the resin member 90 .
- the yoke 84 , the annular portion 83 , and the end surfaces of the first magnet M ⁇ b>1 , the second magnet M ⁇ b>2 , and the third magnet M ⁇ b>3 on the first direction side in the axial direction are covered with the resin portion 91 .
- the resin portion 91 As a result, by improving the heat dissipation from the mold rotor 9, it is possible to suppress a decrease in motor efficiency.
- the material of the yoke shown in the embodiment and each modified example is not limited to iron, and may be another magnetic material.
- the rotors or stators described in the embodiments and modifications of the present invention may be mounted on actuators, electronic devices, and the like.
- the rotor or stator according to the embodiments and modifications of the present invention is accommodated in a frame, housing, body, or the like of an actuator or an electronic device, and used as a drive element for the actuator or electronic device.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
Description
まず、実施形態におけるモータについて、図1及び図2を用いて説明する。図1は、実施形態におけるモールドロータの一例を示す上面斜視図である。図2は、実施形態における、樹脂で覆われる前のロータの一例を示す上面斜視図である。なお、以下において、樹脂で覆われたロータをモールドロータ5と表記し、樹脂で覆われる前のロータをロータ2と表記する場合がある。
以上、実施形態における構成について説明したが、実施の形態はこれに限られない。例えば、実施形態におけるモータ1はインナーロータ型のモータであるが、これに限られず、アウターロータ型のモータであってもよい。また、実施形態におけるモータは、軸方向における長さに対して、径方向における長さの方が大きい、いわゆる扁平モータであるが、これに限られず、軸方向におけるモータの長さが、径方向における長さより大きくてもよい。なお、モータの軸方向における長さに関係なく、マグネットの軸方向における長さは、ヨークの軸方向における長さよりも小さいことが好ましい。
Claims (9)
- ロータと、
径方向において前記ロータと対向するステータと、を備え、
前記ロータは、ヨークと、マグネットと、前記ヨークと前記マグネットとを覆う樹脂部と、を備え、
周方向において、前記樹脂部が、前記マグネットと隣接して配置される、
モータ。 - 前記樹脂部は、アルミニウム、又はケイ素を含む、請求項1に記載のモータ。
- 前記樹脂部は、非磁性体または軟磁性体である、請求項2に記載のモータ。
- 前記ステータは、径方向において前記ロータの外周側に配置され、
前記ヨークは、前記ステータと対向する外周面を有し、
前記外周面は、前記樹脂部に対して露出している、
請求項2又は3に記載のモータ。 - 前記マグネットは、前記ステータと対向するマグネット外周面を有し、
前記樹脂部は、前記マグネット外周面を覆う、
請求項4に記載のモータ。 - 前記樹脂部は、軸方向一方側の面に軸方向他方側に凹む凹部を有し、
前記凹部は、前記樹脂部を形成する樹脂の注入跡が形成される、
請求項2乃至5のいずれか1つに記載のモータ。 - 磁束を検出するセンサを有し、
前記樹脂部は、軸方向一方側の面に段部を有し、前記段部よりも外周側における前記マグネットの軸方向一方側に配置される樹脂部の軸方向の厚みが、前記段部よりも内周側における前記マグネットの軸方向一方側に配置される樹脂部の軸方向の厚みよりも小さい、薄肉部を有し、
前記センサは、軸方向において前記薄肉部と対向する、請求項1乃至6のいずれか1項に記載のモータ。 - 磁束を検出するセンサを有し、
前記樹脂部は、前記マグネットの軸方向他方側に配置される樹脂部の軸方向の厚みが、前記マグネットの軸方向一方側に配置される樹脂部の軸方向の厚みよりも小さく、
前記センサは、軸方向他方側において前記マグネットと前記樹脂部を介して対向する、
請求項1乃至7のいずれか1項に記載のモータ。 - 前記ロータは、径方向において前記ヨークの内周側に形成される環状部と、第2マグネットとを有し、
前記第2マグネットは、環状部と前記ヨークとの間に配置され、
前記マグネットは、前記環状部と前記ステータとの間に配置され、
前記樹脂部は、軸方向において、前記マグネットと前記第2マグネットと前記ヨークとを両方向から覆い、
前記マグネットは、径方向において前記樹脂部を介して前記ステータと対向し、
前記マグネットの径方向内側にはフラックスバリアが形成され、
前記第2マグネットは、径方向において前記樹脂部を介して前記ヨーク及び環状部とそれぞれ対向し、周方向両側において前記樹脂部を介して前記フラックスバリアとそれぞれ対向する、
請求項1乃至8のいずれか1項に記載のモータ。
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CN202280074367.0A CN118202553A (zh) | 2021-11-25 | 2022-09-30 | 马达 |
EP22898229.4A EP4439932A1 (en) | 2021-11-25 | 2022-09-30 | Motor |
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JP2021-191339 | 2021-11-25 | ||
JP2021191339A JP2023077856A (ja) | 2021-11-25 | 2021-11-25 | モータ |
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WO2023095444A1 true WO2023095444A1 (ja) | 2023-06-01 |
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JP (1) | JP2023077856A (ja) |
CN (1) | CN118202553A (ja) |
TW (1) | TW202322518A (ja) |
WO (1) | WO2023095444A1 (ja) |
Citations (6)
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JPH07312852A (ja) | 1994-05-13 | 1995-11-28 | Yaskawa Electric Corp | 永久磁石形回転子の製造方法 |
JPH11299207A (ja) * | 1998-04-17 | 1999-10-29 | Matsushita Electric Ind Co Ltd | ブラシレスモータ |
JP2012060773A (ja) * | 2010-09-08 | 2012-03-22 | Mitsubishi Electric Corp | 同期電動機の回転子 |
JP2014014271A (ja) * | 2013-10-21 | 2014-01-23 | Mitsui High Tec Inc | 永久磁石の樹脂封止方法及びその方法で製造された積層鉄心 |
JP2019122190A (ja) | 2018-01-10 | 2019-07-22 | 日本電産テクノモータ株式会社 | ロータ、モータおよびロータの製造方法 |
JP2020010466A (ja) * | 2018-07-05 | 2020-01-16 | 日立オートモティブシステムズ株式会社 | 永久磁石埋込型回転電機の回転子及びその製作方法 |
-
2021
- 2021-11-25 JP JP2021191339A patent/JP2023077856A/ja active Pending
-
2022
- 2022-09-30 CN CN202280074367.0A patent/CN118202553A/zh active Pending
- 2022-09-30 EP EP22898229.4A patent/EP4439932A1/en active Pending
- 2022-09-30 WO PCT/JP2022/036706 patent/WO2023095444A1/ja active Application Filing
- 2022-10-25 TW TW111140334A patent/TW202322518A/zh unknown
Patent Citations (6)
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JPH07312852A (ja) | 1994-05-13 | 1995-11-28 | Yaskawa Electric Corp | 永久磁石形回転子の製造方法 |
JPH11299207A (ja) * | 1998-04-17 | 1999-10-29 | Matsushita Electric Ind Co Ltd | ブラシレスモータ |
JP2012060773A (ja) * | 2010-09-08 | 2012-03-22 | Mitsubishi Electric Corp | 同期電動機の回転子 |
JP2014014271A (ja) * | 2013-10-21 | 2014-01-23 | Mitsui High Tec Inc | 永久磁石の樹脂封止方法及びその方法で製造された積層鉄心 |
JP2019122190A (ja) | 2018-01-10 | 2019-07-22 | 日本電産テクノモータ株式会社 | ロータ、モータおよびロータの製造方法 |
JP2020010466A (ja) * | 2018-07-05 | 2020-01-16 | 日立オートモティブシステムズ株式会社 | 永久磁石埋込型回転電機の回転子及びその製作方法 |
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JP2023077856A (ja) | 2023-06-06 |
CN118202553A (zh) | 2024-06-14 |
TW202322518A (zh) | 2023-06-01 |
EP4439932A1 (en) | 2024-10-02 |
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