WO2014174721A1 - 誘導機 - Google Patents
誘導機 Download PDFInfo
- Publication number
- WO2014174721A1 WO2014174721A1 PCT/JP2013/083500 JP2013083500W WO2014174721A1 WO 2014174721 A1 WO2014174721 A1 WO 2014174721A1 JP 2013083500 W JP2013083500 W JP 2013083500W WO 2014174721 A1 WO2014174721 A1 WO 2014174721A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cooling fan
- end ring
- rotor
- induction machine
- fixing
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K17/00—Asynchronous induction motors; Asynchronous induction generators
- H02K17/02—Asynchronous induction motors
- H02K17/16—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
- H02K5/1732—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings radially supporting the rotary shaft at both ends of the rotor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
- H02K7/083—Structural association with bearings radially supporting the rotary shaft at both ends of the rotor
Definitions
- the present invention relates to an induction machine.
- Patent Document 1 has a stator and a rotor disposed opposite to the stator, and the rotor includes a laminated core formed by laminating a plurality of thin plates, and the inside of the laminated core.
- a rotary electric machine is disclosed that includes a plurality of conductor bars respectively inserted into a plurality of holes extending in the axial direction, and end rings provided at both axial ends of the laminated core.
- the conductor bar has a tapered end, and the end ring is formed with a tapered hole conforming to the shape of the end of the conductor bar, and the end of the conductor bar is It is inserted in the hole of the end ring.
- the end ring is integrally provided with cooling fins and an imbalance correction protrusion in advance.
- Patent Document 2 discloses a self-ventilation type vehicle main motor for arranging cooling air by arranging axial fans on both sides of a rotor core.
- the width of the axial fan is narrowed, and the distance from the bracket and bearing box facing the axial fan to the axial fan blade is determined at the position of the average diameter of the wing. , The width of the wing in the axial direction.
- An object of the present invention is to provide an induction machine capable of securing strength against stress generated as the cooling fan rotates and achieving axial miniaturization.
- An induction machine for achieving the above object comprises a housing, a stator disposed in the housing and having a stator core and a coil, a shaft, a rotor core fixed to the shaft, and a secondary conductor,
- the following conductors are disposed in the housing: a rotor including a rotor bar and an end ring; a bearing rotatably supporting the shaft; a cooling fan disposed in the housing; a blade portion; and the cooling fan And cooling fan fixing means fixed to the rotor.
- the wing portion is disposed axially outside the end ring, and the tip of the wing portion in the axial direction extends axially outside the coil end of the coil.
- the cooling fan includes a fixing portion disposed radially inward of the end ring, and a cylindrical extending portion extending from the fixing portion to the blade portion, and the fixing portion is the cooling fan fixing means.
- the bearing is located axially inward of the tip end of the blade portion.
- the cooling fan is fixed to the end ring, it is possible to secure strength against the stress generated as the cooling fan rotates. Furthermore, since the bearing is located inward in the axial direction from the tip of the blade portion, the axial length of the induction machine can be suppressed from being long and axial miniaturization can be achieved.
- the cooling fan fixing means may be a fixing member which holds the fixing portion in the axial direction with the rotor core.
- the fixing member can double as the rotor core presser. Further, the rotation balance of the rotor can be adjusted by the fixing member.
- the cooling fan fixing means may be a fixing member which holds the fixing portion in the axial direction between the fixing portion and a protrusion of the shaft. In this case, it is possible to adjust the rotational balance of the rotor by the fixing member.
- the cooling fan fixing means may be a projection provided on the shaft so as to sandwich the fixing portion in the axial direction with the rotor core.
- the above-mentioned blade part may be located in the diameter direction outside rather than the inner circumference of the above-mentioned end ring.
- the above-mentioned cooling fan may consist of board material, and in that case, a cooling fan can be formed by bending processing or drawing processing.
- the blade portion and the end ring may be thermally coupled, in which case the heat generated in the end ring is transferred to a cooling fan to cool the end ring it can.
- the above-mentioned blade part and the above-mentioned end ring may be in contact.
- the cooling fan may have an end ring pressing portion extending in the axial direction from the blade portion, in which case the end ring is not expanded radially outward by centrifugal force. Can hold the end ring.
- the end ring pressing portion may be located on the outer peripheral surface of the end ring.
- the end ring pressing portion may engage with a recess provided on an end surface of the end ring.
- FIG. 2 is a schematic side view of a cooling fan and a rotor in the induction machine of FIG.
- A) is a front view of a cooling fan
- (b) is a side view of a cooling fan.
- the partial schematic sectional view of the induction machine of another example is a front view of a cooling fan
- the partial schematic sectional view of the induction machine of another example is a side view of a cooling fan.
- the perspective view of a cooling fan The partial schematic sectional view of the induction machine of another example.
- the partial schematic sectional view of the induction machine of another example. The partial schematic sectional view of the induction machine in a comparative example.
- the induction machine 10 includes a housing 20, a stator 30, a rotor 40, bearings 50 and 51, and cooling fans 60 and 61.
- the rotor 40 is supported by the bearings 50 and 51 with respect to the housing 20 on the radially inner side of the stator 30 fixed to the housing 20.
- the housing 20 has a cylindrical shape whose both ends in the axial direction are closed as a whole.
- the housing 20 has a first housing component 21 and a second housing component 22.
- the first housing component 21 includes a cylindrical main body 21 a and a disk-like front plate 21 b closing an opening at the first end of the main body 21 a.
- the second housing component 22 includes a cylindrical main body 22 a and a disk-shaped rear plate 22 b closing the opening at the first end of the main body 22 a.
- the first housing component 21 and the second housing component 22 are formed of a metal material (for example, aluminum).
- a collar 21 c is formed at the opening edge of the first housing component 21.
- a flange 22 c is formed at the opening edge of the second housing component 22.
- the first housing component 21 and the second housing component 22 are connected and fixed to each other by screwing screws passing through the collar 22c into the collar 21c.
- Cooling to the induction machine 10 is performed in an open system, and an air inlet 25 is formed in the front plate 21b, and an air outlet 26 is formed at an end of the main body 21a near the front plate 21b. It is formed. Further, an air intake port 27 is formed in the rear plate 22b, and an air exhaust port 28 is formed in an end portion of the main body 22a close to the rear plate 22b.
- a shaft 41 passes through a rotor core 42 of the rotor 40, and the shaft 41 is rotatably supported by the bearings 50 and 51.
- the first end side portion of the shaft 41 is rotatably supported by a cylindrical shaft support 21 d protruding from the front plate 21 b via the bearing 50.
- the second end side portion of the shaft 41 is rotatably supported by a cylindrical shaft support portion 22 d which is provided to project from the rear plate 22 b via a bearing 51. That is, the bearings 50 and 51 are disposed in the housing 20, and the bearing 50 rotatably supports the first end side portion of the shaft 41, and the bearing 51 rotatably supports the second end side portion of the shaft 41.
- a first end or output end of the shaft 41 protrudes through the front plate 21b to the outside of the housing 20, and a transmission (not shown) or the like is attached to the output end.
- the stator 30 is fixed to the inner peripheral surface of the main body portion 21 a of the first housing constituent member 21. That is, the stator 30 is disposed in the housing 20, and has an annular stator core 31 fixed to the inner circumferential surface of the main body 21a, and a coil 32 wound around teeth (not shown) of the stator core 31.
- the stator core 31 is configured by laminating electromagnetic steel sheets.
- the stator 30 is inserted into the main body portion 21a via the opening at the second end of the main body portion 21a, and is fixed to the inner circumferential surface of the main body portion 21a by shrink fitting.
- the rotor 40 is disposed radially inward of the stator 30.
- the rotor 40 has the shaft 41, the rotor core 42 and a secondary conductor 43.
- the rotor core 42 is fixed to the shaft 41.
- the rotor core 42 is configured by laminating electromagnetic steel sheets.
- the rotor core 42 is sandwiched between a fixing member 100 to be described later and a projection (ridge portion) 49 formed on the shaft 41, and the movement of the shaft 41 in the axial direction is restricted.
- the secondary conductor 43 has a plurality of rotor bars 45 and end rings 46 and 47.
- the rotor bar 45 is embedded inside the rotor core 42, and is disposed to penetrate the rotor core 42 in the axial direction.
- the end ring 46 is disposed at the first end face of the rotor core 42 and is connected to the first end of the rotor bar 45.
- the end ring 47 is disposed at the second end face of the rotor core 42 and is connected to the second end of the rotor bar 45.
- the secondary conductor 43 (the rotor bar 45 and the end rings 46 and 47) is made of aluminum, and in detail, is manufactured by aluminum die casting.
- the cooling fans 60, 61 are disposed in the housing 20.
- the cooling fans 60 and 61 have the same configuration as each other, and are made of plate materials.
- the cooling fans 60 and 61 are formed by bending and drawing.
- the cooling fans 60 and 61 are separate from the end rings 46 and 47, and are made of a high strength material (for example, aluminum alloy or stainless steel).
- Each cooling fan 60, 61 has a plurality of vanes 65, a fixing portion 66 and an extending portion 67.
- the fixing portion 66 which is a portion fixed to the shaft 41 has a disk shape (flange shape or ring shape), and allows the shaft 41 to be inserted.
- a cylindrical extension portion 67 extends in the axial direction from the outer peripheral edge of the disk-like fixing portion 66.
- a plurality of blade portions 65 are formed at the tip of the cylindrical extension portion 67.
- Each blade 65 has a flat plate 65a and a curved surface 65b for receiving air.
- the flat plate portion 65a extends in a radial direction perpendicular to the axis of the shaft 41, and a curved surface portion 65b is formed in an outer peripheral region of the flat plate portion 65a so as to be bent relative to the flat plate portion 65a and extend in the axial direction.
- the plurality of curved surface portions 65 b are arranged at equal angular intervals in the circumferential direction.
- the end surface in the axial direction of each curved surface portion 65 b corresponds to the tip 65 c in the axial direction of each blade portion 65.
- the curved surface portion 65 b causes an air flow in a direction toward the radially outer side of the shaft 41. That is, outside air can be introduced into the housing 20 from the air inlet 25 formed in the front plate 21b of the housing 20 and the air inlet 27 formed in the rear plate 22b, and the air outlet 26 formed in the main body 21a of the housing 20 The air can be discharged to the outside of the housing 20 from an air discharge port 28 formed in the main body 22a.
- the cylindrical extending portion 67 extends from the blade portion 65 to the region radially inward of the end ring 46, and the fixing portion 66 is a cooling fan in the region radially inward of the end ring 46.
- the fixing member 100 is disposed in the radially inner region of the extending portion 67. That is, the cooling fan fixing means is the fixing member 100 which holds the cooling fan 60 (specifically, the fixing portion 66) between the cooling fan 60 and the rotor core 42 in the axial direction.
- the fixing member 100 is made of iron and has a ring shape.
- the blade portion 65 of the cooling fan 60 is disposed axially outside the end ring 46, and the tip 65 c of the blade portion 65 in the axial direction extends axially outward from the coil end 32 a of the coil 32.
- the cylindrical extending portion 67 extends from the blade portion 65 to the radial inner area of the end ring 47, and the fixing portion 66 is a cooling fan fixing means in the radial inner area of the end ring 47. It is being fixed to the rotor 40 by the fixing member 101 as (or cooling fan fixing tool).
- the fixing member 101 is disposed in the radially inner region of the extending portion 67. That is, the cooling fan fixing means is the fixing member 101 which holds the cooling fan 61 (specifically, the fixing portion 66) between the cooling fan 61 and the projection 49 of the shaft 41 in the axial direction.
- the fixing member 101 is made of iron and has a ring shape.
- the blade portion 65 of the cooling fan 61 is disposed axially outside the end ring 47, and the tip 65 c of the blade portion 65 in the axial direction extends axially outward from the coil end 32 b of the coil 32.
- the bearing 50 is located axially inward of the tip 65 c of the blade 65 of the cooling fan 60. Similarly, the bearing 51 is located axially inward of the tip 65 c of the blade 65 of the cooling fan 61.
- the blade portion 65 of the cooling fan 60 is located radially outward of the inner periphery of the end ring 46.
- the blade portion 65 of the cooling fan 61 is located radially outward of the inner periphery of the end ring 47.
- the fixing members 100 and 101 are axially inward of the blade portions 65 of the cooling fans 60 and 61.
- the cooling fans 60 and 61 can be fixed to the shaft 41 without increasing the axial length of the induction machine 10.
- the fixing members 100 and 101 are formed of a material having a high specific gravity
- the fixing members 100 and 101 may be reduced by partially reducing (for example, by drilling holes) the rotors 40 It can also be used as a member for adjusting the rotational balance of the
- a rotating magnetic field is created in the stator 30.
- a secondary current flows to the secondary conductor 43 (the rotor bar 45 and the end rings 46 and 47) by electromagnetic induction.
- an induced current ie, a secondary current flows in the secondary conductor 43 functioning as a current path for causing the rotor 40 to generate torque
- a magnetic pole is generated in the rotor 40.
- An electromagnetic force acts between the magnetic poles generated on the rotor 40 and the rotating magnetic field produced by the stator 30, and the rotor 40 rotates.
- Air outside air
- Air is introduced into the housing 20 in the axial direction from the air intakes 25 and 27 of the housing 20 by the rotation of the cooling fans 60 and 61 and passes through the vanes 65 and the diameter from the air outlets 26 and 28 of the housing 20 It is discharged out of the housing 20 in the direction. Heat generated inside the housing 20 is discharged by the air.
- FIG. 10 A comparative example is shown in FIG. In FIG. 10, an aluminum rotor bar 202 is inserted into the rotor core 201. An end ring 204 fixed and integrated with the cooling fan 203 is fitted into the rotor bar 202. In this configuration, when the rotor 200 is rotated at high speed, the stirring resistance of air and the centrifugal force are applied to the cooling fan 203, a large stress is generated at the joint between the cooling fan 203 and the rotor bar 202, and the strength of the rotor is insufficient. There is a risk. In the comparative example of FIG. 11, the cooling fan 211 is fixed to the shaft 205 by the fixing member 210 as a separate body from the rotor core.
- the end rings 46 and 47 and the cooling fans 60 and 61 are separated so that the strength can be secured even when the rotor 40 of the induction machine 10 is rotated at high speed. Since it is necessary to supply electricity to the end rings 46 and 47, the end rings 46 and 47 are formed of aluminum of high purity (for example, 99% or more), but the strength is low. On the other hand, the cooling fans 60 and 61 can be formed of an aluminum alloy which is a high strength material. As described above, since the end rings 46 and 47 and the cooling fans 60 and 61 are separately provided, the selectivity of materials usable for forming those parts is increased (an appropriate material is selected in consideration of strength). Can be selected).
- the shape of the portion of the cooling fans 60 and 61 necessary for fixing to the shaft 41 is a cup shape.
- This cup shape can be formed by drawing from a plate-like material.
- the fixing portion 66 and the extending portion 67 of the cooling fans 60 and 61 can enter the radially inner region of the end rings 46 and 47, and the entire cooling fans 60 and 61 can be made of a plate-like material.
- the induction machine 10 can be easily manufactured at high speed without increasing the axial length of the induction machine 10.
- the vanes 65 of the cooling fans 60 and 61 are disposed axially outside the end rings 46 and 47.
- the tip 65 c of the blade 65 in the axial direction extends axially outward from the coil ends 32 a and 32 b of the coil 32.
- the cooling fans 60 and 61 have a fixing portion 66 disposed radially inward of the end rings 46 and 47, and a cylindrical extending portion 67 extending from the fixing portion 66 to the blade portion 65, and the fixing portion Reference numeral 66 is fixed to the rotor 40 by fixing members 100 and 101 as cooling fan fixing means. Therefore, compared with the case where the cooling fans 60 and 61 are fixed to the end rings 46 and 47, the stress generated with the rotation of the cooling fans 60 and 61 can be reduced. Furthermore, the bearings 50 and 51 are located axially inside the tip 65 c of the blade 65. Therefore, the axial length can be reduced while suppressing the increase in the length in the axial direction.
- the cooling fan fixing means is the fixing member 100 sandwiching the cooling fan 60 (specifically, the fixing portion 66) with the rotor core 42 in the axial direction
- the fixing member 100 presses the rotor core 42 in the axial direction It is also used as a member. Further, the rotational balance of the rotor 40 can be adjusted by the fixing member 100.
- the cooling fan fixing means is the fixing member 101 which holds the cooling fan 61 between the projection 49 of the shaft 41 in the axial direction, the rotation balance of the rotor 40 can be adjusted by the fixing member 101 Become.
- the cooling air is taken from the outside of the housing 20 and used for cooling and discharged to the outside of the housing 20 It is preferable to do.
- the cooling fans 60 and 61 can be easily formed from plate members by bending or drawing.
- the embodiment is not limited to the above, and may be embodied as follows, for example.
- the cooling fans 60 and 61 on both sides are fixed by the fixing members 100 and 101, but instead, the cooling fan 61 (60) on one side is, as shown in FIG. And the protrusion 102 of the shaft 41.
- the cooling fan fixing means is the projection 102 of the shaft 41 which holds the cooling fan 61 in the axial direction with the rotor core 42. In this case, the number of parts can be reduced.
- end rings 46 and 47 and the blade portions 65 of the cooling fans 60 and 61 are not in contact with each other in FIG. 1 and the like, heat generated by the end rings 46 and 47 can be obtained by contacting as shown in FIG. It may be transmitted to the cooling fans 60 and 61 for cooling. Instead of bringing the end rings 46 and 47 into direct contact with the cooling fans 60 and 61, the end rings 46 and 47 may be thermally coupled to the cooling fans 60 and 61 via heat dissipation members.
- the heat generated at the end rings 46 and 47 is transmitted to the cooling fans 60 and 61 by thermally coupling the blade portion 65 with the end rings 46 and 47, etc. , 47 can be cooled.
- an insulating film is attached to the surface of the blade portion 65 in FIG. 6, the cooling fans 60, 61 can be reliably insulated from the end rings 46, 47.
- the cooling fans 60 and 61 may have an end ring pressing portion 110 extending in the axial direction from each blade 65.
- the end ring pressing portion 110 is made of a plate material. As shown in FIG. 8, the end ring pressing portion 110 is bent with respect to the blade 65 so that the end ring pressing portion 110 extends toward the end rings 46 and 47 at the radially outer end of each blade 65 of the cooling fans 60 and 61. It is formed. That is, the end ring pressing portion 110 is formed when the cooling fans 60 and 61 are formed by bending and drawing. As shown in FIG. 7, the end ring pressing portion 110 is located on the outer peripheral surface 115 of the end rings 46 and 47.
- the material of the cooling fans 60 and 61 can be selected to have a strength higher than that of the end rings 46 and 47, whereby the strength of the rotor can be improved. Further, by bringing the cooling fans 60 and 61 into surface contact with the end rings 46 and 47, the cooling efficiency is improved. Furthermore, the shape of the portion (the fixing portion 66 and the extending portion 67) of the cooling fans 60 and 61 necessary for fixing to the shaft 41 is a cup shape (recessed shape) that can be formed by drawing from a plate material. There is.
- the protrusion 102 of the shaft 41 as a fan fixing means is intruded into the cup-shaped portion.
- the cooling fans 60 and 61 have shapes that can be manufactured by cutting and bending. As a result of the foregoing, it is possible to easily manufacture the induction machine 10 without increasing its axial length, and to realize an induction machine that can rotate at high speed, has high cooling performance and strength, and can be miniaturized. Can. Even in the case where the configuration shown in FIGS. 7 and 8 is adopted, the cooling fans 60 and 61 can be reliably insulated from the end rings 46 and 47 by providing an insulating film on the surfaces of the blades 65.
- 61 may be engaged with the recesses (or grooves) 131 formed in the end rings 46, 47, respectively.
- an end ring pressing portion 120 is provided on each blade 65 of the cooling fans 60 and 61, and the end ring pressing portion 120 engages with a recess 131 provided on the end surface 130 of the end rings 46 and 47.
- the end ring pressing portion 120 is a projection that protrudes from the flat plate portion 65 a of each blade portion 65 toward the end rings 46 and 47, and a plurality of the end ring pressing portion 120 are arranged along the circumferential direction.
- the end ring pressing portion 120 is formed by drawing.
- Recesses 131 are formed on the end surfaces 130 of the end rings 46 and 47 at positions corresponding to the end ring holding portions 120, respectively.
- the end ring holding portion (convex portion) 120 is fitted in the concave portion 131.
- the material of the cooling fans 60 and 61 can be reduced as compared with the configurations shown in FIGS. Also in the configuration shown in FIG. 9, the cooling fans 60 and 61 can be reliably insulated from the end rings 46 and 47 by providing an insulating film on the surfaces of the blade portions 65.
- the cooling fans are disposed on both axial sides of the shaft 41, but may be disposed on only one axial side of the shaft 41.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
Description
Claims (11)
- ハウジングと、
前記ハウジング内に配置され、ステータコアとコイルとを有するステータと、
シャフト、当該シャフトに固定されたロータコア、及び二次導体を有し、二次導体がロータバーとエンドリングとを含むロータと、
前記ハウジング内に配置され、前記シャフトを回転可能に支持する軸受と、
前記ハウジング内に配置され、羽根部を有する冷却ファンと、
前記冷却ファンを前記ロータに固定する冷却ファン固定手段と、
を備え、
前記羽根部は、前記エンドリングの軸方向外側に配置され、軸方向における前記羽根部の先端が前記コイルのコイルエンドより軸方向外側まで延び、
前記冷却ファンは、前記エンドリングの径方向内側に配置される固定部と、該固定部から前記羽根部にまで延びる円筒状の延設部とを有し、前記固定部が前記冷却ファン固定手段により前記ロータに固定され、
前記軸受は、前記羽根部の前記先端より軸方向の内側に位置する、誘導機。 - 前記冷却ファン固定手段は、前記固定部を軸方向において前記ロータコアとの間に挟持する固定部材である、請求項1に記載の誘導機。
- 前記冷却ファン固定手段は、前記固定部を軸方向において前記シャフトの突起との間に挟持する固定部材である、請求項1に記載の誘導機。
- 前記冷却ファン固定手段は、前記固定部を軸方向において前記ロータコアとの間に挟持するように前記シャフトに設けられた突起である、請求項1に記載の誘導機。
- 前記羽根部は前記エンドリングの内周より径方向外側に位置する、請求項1~4のいずれか1項に記載の誘導機。
- 前記冷却ファンは板材よりなる、請求項1~5のいずれか1項に記載の誘導機。
- 前記羽根部と前記エンドリングとは熱的に結合している、請求項1~6のいずれか1項に記載の誘導機。
- 前記羽根部と前記エンドリングとは接触している、請求項7に記載の誘導機。
- 前記冷却ファンは、前記羽根部から軸方向へ延びるエンドリング押え部を有する、請求項7または8に記載の誘導機。
- 前記エンドリング押え部は、前記エンドリングの外周面上に位置する、請求項9に記載の誘導機。
- 前記エンドリング押え部は、前記エンドリングの端面に設けられた凹部に係合している、請求項9に記載の誘導機。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201380075884.0A CN105144551B (zh) | 2013-04-26 | 2013-12-13 | 感应电机 |
US14/786,335 US9793780B2 (en) | 2013-04-26 | 2013-12-13 | Induction machine |
EP13882814.0A EP2991203A4 (en) | 2013-04-26 | 2013-12-13 | Induction machine |
JP2015513488A JP6160690B2 (ja) | 2013-04-26 | 2013-12-13 | 誘導機 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2013-093907 | 2013-04-26 | ||
JP2013093907 | 2013-04-26 |
Publications (1)
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WO2014174721A1 true WO2014174721A1 (ja) | 2014-10-30 |
Family
ID=51791312
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2013/083500 WO2014174721A1 (ja) | 2013-04-26 | 2013-12-13 | 誘導機 |
Country Status (5)
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US (1) | US9793780B2 (ja) |
EP (1) | EP2991203A4 (ja) |
JP (1) | JP6160690B2 (ja) |
CN (1) | CN105144551B (ja) |
WO (1) | WO2014174721A1 (ja) |
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JP2017539193A (ja) * | 2014-12-10 | 2017-12-28 | エルジー イノテック カンパニー リミテッド | ローター組立体およびこれを含むモーター |
WO2023188622A1 (ja) * | 2022-03-31 | 2023-10-05 | ニデック株式会社 | 駆動装置 |
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CN109788594A (zh) * | 2017-11-13 | 2019-05-21 | 特电株式会社 | 感应发热辊装置 |
CN109788593A (zh) * | 2017-11-13 | 2019-05-21 | 特电株式会社 | 感应发热辊装置 |
JP2020108210A (ja) * | 2018-12-26 | 2020-07-09 | 本田技研工業株式会社 | 回転電機 |
CN111756174A (zh) * | 2019-03-26 | 2020-10-09 | 南京德朔实业有限公司 | 电动工具 |
CN110768466B (zh) * | 2019-09-17 | 2021-11-09 | 安阳工学院 | 一种新型散热电主轴 |
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JP4828860B2 (ja) * | 2005-05-09 | 2011-11-30 | 株式会社東芝 | 回転電機 |
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- 2013-12-13 CN CN201380075884.0A patent/CN105144551B/zh not_active Expired - Fee Related
- 2013-12-13 EP EP13882814.0A patent/EP2991203A4/en not_active Withdrawn
- 2013-12-13 US US14/786,335 patent/US9793780B2/en not_active Expired - Fee Related
- 2013-12-13 JP JP2015513488A patent/JP6160690B2/ja not_active Expired - Fee Related
- 2013-12-13 WO PCT/JP2013/083500 patent/WO2014174721A1/ja active Application Filing
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JPH04304143A (ja) * | 1991-03-29 | 1992-10-27 | Hitachi Ltd | 車両用主電動機 |
US5343101A (en) * | 1992-02-25 | 1994-08-30 | Magnetek Century Electric, Inc. | Plastic air deflector for rotating dynamoelectric machine |
JPH07135747A (ja) * | 1993-11-10 | 1995-05-23 | Toshiba Corp | 回転電機 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2017539193A (ja) * | 2014-12-10 | 2017-12-28 | エルジー イノテック カンパニー リミテッド | ローター組立体およびこれを含むモーター |
US10594185B2 (en) | 2014-12-10 | 2020-03-17 | Lg Innotek Co., Ltd. | Rotor assembly and motor including same |
WO2023188622A1 (ja) * | 2022-03-31 | 2023-10-05 | ニデック株式会社 | 駆動装置 |
Also Published As
Publication number | Publication date |
---|---|
US9793780B2 (en) | 2017-10-17 |
CN105144551A (zh) | 2015-12-09 |
JP6160690B2 (ja) | 2017-07-12 |
US20160094109A1 (en) | 2016-03-31 |
EP2991203A1 (en) | 2016-03-02 |
EP2991203A4 (en) | 2017-01-25 |
JPWO2014174721A1 (ja) | 2017-02-23 |
CN105144551B (zh) | 2017-11-03 |
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