WO2015064199A1 - 永久磁石埋込型電動機、圧縮機、および冷凍空調装置 - Google Patents
永久磁石埋込型電動機、圧縮機、および冷凍空調装置 Download PDFInfo
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- WO2015064199A1 WO2015064199A1 PCT/JP2014/072962 JP2014072962W WO2015064199A1 WO 2015064199 A1 WO2015064199 A1 WO 2015064199A1 JP 2014072962 W JP2014072962 W JP 2014072962W WO 2015064199 A1 WO2015064199 A1 WO 2015064199A1
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- Prior art keywords
- back yoke
- frame
- compression
- electric motor
- permanent magnet
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- 230000006835 compression Effects 0.000 claims abstract description 108
- 238000007906 compression Methods 0.000 claims abstract description 108
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 26
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- 229910052742 iron Inorganic materials 0.000 description 13
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- FXRLMCRCYDHQFW-UHFFFAOYSA-N 2,3,3,3-tetrafluoropropene Chemical compound FC(=C)C(F)(F)F FXRLMCRCYDHQFW-UHFFFAOYSA-N 0.000 description 7
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- 229910052796 boron Inorganic materials 0.000 description 3
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- 238000010030 laminating Methods 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
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- 239000011521 glass Substances 0.000 description 2
- 150000008282 halocarbons Chemical class 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 229910001172 neodymium magnet Inorganic materials 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910052692 Dysprosium Inorganic materials 0.000 description 1
- 229910052779 Neodymium Inorganic materials 0.000 description 1
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- KBQHZAAAGSGFKK-UHFFFAOYSA-N dysprosium atom Chemical compound [Dy] KBQHZAAAGSGFKK-UHFFFAOYSA-N 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
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- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
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- 230000001360 synchronised effect Effects 0.000 description 1
- 229930195735 unsaturated hydrocarbon Natural products 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
- H02K1/185—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures to outer stators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/0042—Driving elements, brakes, couplings, transmissions specially adapted for pumps
- F04C29/005—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/0042—Driving elements, brakes, couplings, transmissions specially adapted for pumps
- F04C29/0085—Prime movers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
-
- 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
-
- 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
-
- 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
- H02K1/2706—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
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
- H02K21/16—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having annular armature cores with salient poles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2210/00—Fluid
- F04C2210/22—Fluid gaseous, i.e. compressible
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/20—Rotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/30—Casings or housings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/50—Bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/60—Shafts
-
- 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 compression element 14 includes a cylinder 12 provided in a vertically stacked state, a rotating shaft 10 rotated by the electric motor 7, a piston 13 into which the rotating shaft 10 is inserted, and a cylinder 12 divided into a suction side and a compression side (not shown).
- An upper frame 17 and a lower frame 16 that are a pair of upper and lower frames in which the rotating shaft 10 is inserted to close the axial end surface of the cylinder 12, an upper discharge muffler 11 mounted on the upper frame 17, and a lower frame 16 And a lower discharge muffler 15 attached to the vehicle.
- Shrink fitting is a method in which the stator core 8 is manufactured in which the outer diameter of the stator core 8 is slightly larger than the inner diameter of the frame 6 at room temperature, and the frame 6 is heated to 300 ° C., for example, and expanded. The expanded frame 6 is fitted into the stator core 8. Thereafter, when the temperature of the frame 6 decreases, the frame 6 contracts, and the stator core 8 is fixed to the frame 6.
- the two compression portions 18-1 and 18-2 are provided at positions symmetrical with respect to the central axis 19 so as to straddle the groove portion 8b.
- the two compression portions 18-1 and 18-2 are provided at positions symmetrical to the rotation direction with respect to the central axis 19, when the frame 6 contracts due to shrink fitting, the two compression portions 18-1 and 18- Since the pressing force applied to 2 is equalized, the value of the compressive stress generated in the two compression portions 18-1 and 18-2 can be made the same.
- the two compression portions 18-1 and 18-2 may be formed continuously from one end to the other end in the axial direction of the stator core 8, or from one end to the other end in the axial direction of the stator core 8. You may divide and provide in several places.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
Description
図1は、本発明の実施の形態に係る永久磁石埋込型電動機7を備えたロータリ圧縮機1の縦断面図である。図2は、図1に示されるA-A矢視の断面図である。図3は、図2に示される永久磁石埋込型電動機7の要部詳細図である。図4は、焼き嵌め後の永久磁石埋込型電動機7における圧縮応力の分布を示す図である。図5は、本実施の形態に係る永久磁石埋込型電動機7における磁束の流れを示す図である。図6は、従来の電動機7Aにおける磁束の流れを示す図である。図7は、カシメ8gの位置を変更したバックヨーク8cを示す図である。図8は、カシメ8gの代わりに隙間8g2が形成されたバックヨーク8cを示す図である。図9は、圧縮部群180に用いる磁性体のBH曲線を示す図である。図10は、漏洩磁束の比率を示す図である。図11は、鉄損の比率を示す図である。
電動機7は、固定子30と回転子22と回転軸10とから成り、ブラシレスDCモータである。固定子30は、固定子コア8と巻線29とから成り、固定子コア8の中心付近には回転軸10が配置される。本実施の形態では、密閉型のロータリ圧縮機1の電動要素である電動機7が用いられているが、電動機7はロータリ圧縮機1以外のあらゆる装置の電動要素にも適用可能である。
(1)組成中に炭素の二重結合を有するハロゲン化炭化水素の一例であるHFO-1234yf(CF3CF=CH2)である。HFOは、Hydro-Fluoro-Olefinの略で、Olefinは、二重結合を一つ持つ不飽和炭化水素のことである。尚、HFO-1234yfのGWPは4である。
(2)組成中に炭素の二重結合を有する炭化水素の一例であるR1270(プロピレン)である。尚、GWPは3で、HFO-1234yfより小さいが、可燃性はHFO-1234yfより大きい。
(3)組成中に炭素の二重結合を有するハロゲン化炭化水素または組成中に炭素の二重結合を有する炭化水素のいずれかを含む混合物の一例であるHFO-1234yfとR32との混合物である。HFO-1234yfは、低圧冷媒のため圧損が大きくなり、冷凍サイクル、特に蒸発器においての性能が低下しやすい。そのため、HFO-1234yfより高圧冷媒であるR32又はR41との混合物が実用上は有力になる。
Claims (12)
- フレームの内部に配置され、バックヨークと、前記バックヨークから前記バックヨークの中心の方向に伸びる複数の磁極ティースとを有する固定子コアと、
前記複数の磁極ティースの内径側に配置される回転子と、
前記バックヨークの外周部と前記フレームの内周部との間に形成され、前記フレームと前記バックヨークとの間に生じる押圧力で変形することによって、前記押圧力に起因して前記バックヨークに生じる圧縮応力よりも高い圧縮応力が生じる複数の圧縮部と、
を備え、
前記複数の磁極ティースの個々の磁極ティースに対応する前記バックヨークの外周部には、前記複数の圧縮部の内の2以上の圧縮部を一組とする圧縮部群が配置され、
前記圧縮部群を構成する複数の圧縮部における回転方向幅の総和は、前記フレームの径方向厚よりも小さい永久磁石埋込型電動機。 - 前記バックヨークの径方向幅の最薄部分をDとし、前記バックヨークに前記圧縮部が接触する部分から前記バックヨークの内径面までの径方向幅をD1としたとき、前記バックヨークは、D1>Dの関係を満たす形状である請求項1に記載の永久磁石埋込型電動機。
- 前記圧縮部とカシメとの間の距離をEとし、前記カシメから前記内径面までの距離をFとした場合、前記カシメは、F>Eの関係を満たす形状である請求項2に記載の永久磁石埋込型電動機。
- 前記固定子コアには、焼鈍処理が施されている請求項1から3の何れか1項に記載の永久磁石埋込型電動機。
- 前記フレームには焼鈍処理が施されている請求項1から4の何れか1項に記載の永久磁石埋込型電動機。
- 前記回転子に埋め込まれる永久磁石は希土類磁石である請求項1から5の何れか1項に記載の永久磁石埋込型電動機。
- 前記固定子コアには集中巻の巻線が施されている請求項1から6の何れか1項に記載の永久磁石埋込型電動機。
- 前記圧縮部は、前記固定子コアと一体的に、前記バックヨークの外周部から前記フレームの内周部に向かって突状に形成されている請求項1から7の何れか1項に記載の永久磁石埋込型電動機。
- 前記圧縮部が一体的に形成された前記固定子コアを構成する電磁鋼板の板厚は、0.30mm以下である請求項8に記載の永久磁石埋込型電動機。
- 前記圧縮部は、前記フレームと一体的に、前記フレームの内周部から前記バックヨークの外周部に向かって突状に形成されている請求項1から9の何れか1項に記載の永久磁石埋込型電動機。
- 請求項1から10の何れか1項に記載の永久磁石埋込型電動機を搭載した圧縮機。
- 請求項11に記載の圧縮機を搭載した冷凍空調装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015544847A JP6431483B2 (ja) | 2013-10-29 | 2014-09-01 | 永久磁石埋込型電動機の製造方法、圧縮機の製造方法、および冷凍空調装置の製造方法 |
US15/027,013 US10284030B2 (en) | 2013-10-29 | 2014-09-01 | Permanent magnet embedded electric motor, compressor, and a refrigerating and air conditioning device |
EP14857137.5A EP3065265A4 (en) | 2013-10-29 | 2014-09-01 | Permanent magnet embedded electric motor, compressor, and refrigerating and air-conditioning device |
CN201480057279.5A CN105637732B (zh) | 2013-10-29 | 2014-09-01 | 永久磁铁嵌入式电动机、压缩机和制冷空调装置 |
CN201420616656.1U CN204517521U (zh) | 2013-10-29 | 2014-10-23 | 永久磁铁嵌入式电动机、压缩机和制冷空调装置 |
Applications Claiming Priority (2)
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PCT/JP2014/072962 WO2015064199A1 (ja) | 2013-10-29 | 2014-09-01 | 永久磁石埋込型電動機、圧縮機、および冷凍空調装置 |
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US (1) | US10284030B2 (ja) |
EP (1) | EP3065265A4 (ja) |
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JP6431483B2 (ja) | 2018-11-28 |
US10284030B2 (en) | 2019-05-07 |
EP3065265A1 (en) | 2016-09-07 |
CN105637732B (zh) | 2019-08-09 |
CN204517521U (zh) | 2015-07-29 |
JP2019013145A (ja) | 2019-01-24 |
JPWO2015064199A1 (ja) | 2017-03-09 |
EP3065265A4 (en) | 2017-12-20 |
US20160241092A1 (en) | 2016-08-18 |
WO2015063871A1 (ja) | 2015-05-07 |
JP6667591B2 (ja) | 2020-03-18 |
CN105637732A (zh) | 2016-06-01 |
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