WO2010113766A1 - 電動機ロータおよびこれを備えた圧縮機 - Google Patents
電動機ロータおよびこれを備えた圧縮機 Download PDFInfo
- Publication number
- WO2010113766A1 WO2010113766A1 PCT/JP2010/055251 JP2010055251W WO2010113766A1 WO 2010113766 A1 WO2010113766 A1 WO 2010113766A1 JP 2010055251 W JP2010055251 W JP 2010055251W WO 2010113766 A1 WO2010113766 A1 WO 2010113766A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rotor
- hole
- motor rotor
- electric motor
- positioning
- Prior art date
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Classifications
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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
- H02K7/04—Balancing means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/04—Measures to avoid lubricant contaminating the pumped fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/06—Cooling; Heating; Prevention of freezing
-
- 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
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/008—Hermetic pumps
-
- 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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
-
- 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
- H02K1/32—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- 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
- F04C2230/00—Manufacture
- F04C2230/60—Assembly methods
- F04C2230/603—Centering; Aligning
-
- 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
- F04C29/026—Lubricant separation
-
- 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
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
Definitions
- the present invention relates to an electric motor rotor and a compressor including the electric motor rotor, and more particularly to an electric motor rotor having a plurality of holes such as a refrigerant gas hole and a rivet hole, and a hermetic type such as a rotary compressor and a scroll compressor including the electric motor rotor.
- the present invention relates to a rotary compressor.
- FIG. 7 is a top view of a conventional 6-pole motor rotor.
- the rotor 1 is provided with four elongated refrigerant gas holes 3 and two positioning holes 4 in the vicinity of the periphery of the shaft hole 2.
- six rivet holes 5 are provided on the radially outer side of the rotor 1.
- the positioning hole 4 also serves as the refrigerant gas hole 3.
- the rivet hole 5 is for inserting a rivet for fixing a rotor core (rotor laminated steel plate), an end plate 6, a magnet (permanent magnet), a balance weight 7 and an oil separation plate, which are components of the rotor 1.
- the refrigerant gas hole 3 is a through hole serving as a refrigerant gas passage, and is for improving oil separation efficiency.
- the positioning hole 4 is for inserting a positioning pin for adjusting the rotational position of the rotor 1 to a predetermined position in the magnetizing process of the rotor 1.
- the rotor In the manufacturing process of the rotary compressor, the rotor is magnetized after being fixed to the shaft extending from the compression portion in the casing by shrink fitting. Magnetization of the rotor needs to be performed by aligning the rotor and the magnetizing device at a predetermined position in the rotation direction, and by inserting a positioning pin into the positioning hole of the rotor and adjusting the position in the rotation direction of the rotor at the predetermined position. .
- the positioning pin since the rotor is fixed to the shaft extending from the compression portion by shrink fitting, the positioning pin is inserted into the rotor from a positioning hole provided on the rotor end surface on the side of the non-compression portion far from the compression portion. Since the magnetic force for rotating the rotor acts when magnetized, the positioning pin also plays a role in preventing the rotor from rotating during alignment.
- the refrigerant gas hole 3 has a long hole shape that is long in the circumferential direction of the rotor 1. If all of the refrigerant gas holes 3 have the same long hole shape, it becomes difficult to use the refrigerant gas holes 3 as positioning holes. Therefore, the refrigerant gas holes 3 (positioning holes 4) used for positioning are circular. In this case, there is a problem that the area of the refrigerant gas hole 3 is reduced and the oil separation efficiency is deteriorated. Conversely, if the area of the circle of the refrigerant gas hole 3 (positioning hole 4) used for positioning is increased, there is a problem that the magnetic path in the rotor 1 is narrowed and the motor efficiency is deteriorated.
- the oil separation plate is provided on the end surface of the rotor on the side opposite to the compression portion, so that the oil separation plate can be provided with a positioning hole or a notch.
- the oil separation plate is made of a thin plate to reduce costs, the strength will decrease, and the oil separation plate may be deformed by the rotational force during magnetization, and a positioning hole is provided in the rotor core. It is necessary to keep. In this case, it is necessary to provide a hole having a size larger than that of the positioning hole in the oil separation plate at a position corresponding to the positioning hole of the rotor core.
- the positioning hole is provided separately from the refrigerant gas hole, it is necessary to provide the positioning hole at a location that does not adversely affect the magnetic path in the rotor, which increases design restrictions and may deteriorate motor efficiency. .
- the present invention has been made in view of the above, and an object of the present invention is to provide an electric motor rotor capable of suppressing a decrease in oil separation efficiency and avoiding a decrease in motor efficiency, and a compressor including the same. To do.
- an electric motor rotor according to claim 1 of the present invention is an electric motor rotor composed of a substantially cylindrical rotor laminated steel plate having a permanent magnet therein, and the rotor lamination
- the steel plate is provided with a plurality of refrigerant gas holes penetrating in the axial direction and a plurality of circumferentially arranged rivet holes penetrating in the axial direction, and at least one rivet hole among the plurality of rivet holes, It is configured to be used as a positioning hole for inserting a positioning pin for positioning in the rotational direction when the rotor is magnetized.
- An electric motor rotor according to a second aspect of the present invention is the motor rotor according to the first aspect, wherein an oil separation plate is coaxially provided on an end surface of the rotor laminated steel plate, and the oil separation plate is positioned at a position corresponding to the positioning hole.
- a hole through which the positioning pin can be inserted is provided.
- the motor rotor according to claim 3 of the present invention is the motor rotor according to claim 1 or 2, wherein the number of rotor poles is 6, and the rivet holes are provided at six equal intervals in the circumferential direction. Of these rivet holes, the three equally spaced rivet holes are used as dedicated rivet holes into which rivets are exclusively inserted, and the remaining rivet holes are used as the positioning holes.
- a compressor according to claim 4 of the present invention is a compressor including the motor rotor according to any one of claims 1 to 3 described above.
- the rotor laminated steel plate includes a plurality of refrigerant gas holes penetrating in the axial direction and a circumferential direction.
- a plurality of rivet holes arranged in the axial direction are provided, and at least one rivet hole among the plurality of rivet holes is used as a positioning hole for inserting a positioning pin for positioning in the rotational direction when the rotor is magnetized. Since it is configured to be used, it is not necessary to change the shape of the refrigerant gas hole that affects the oil separation efficiency, and it is not necessary to provide a positioning hole separately from the rivet hole. For this reason, it is possible to avoid adversely affecting the magnetic path in the rotor. Therefore, it is possible to suppress the decrease in oil separation efficiency and avoid the decrease in motor efficiency.
- FIG. 1 is a top view showing an embodiment of an electric motor rotor according to the present invention.
- FIG. 2 is an upper perspective view of the motor rotor according to the present invention.
- FIG. 3 is an exploded top perspective view of the motor rotor according to the present invention.
- FIG. 4 is a top view of the oil separation plate of the motor rotor according to the present invention.
- FIG. 5 is a bottom view showing an embodiment of an electric motor rotor according to the present invention.
- FIG. 6 is a side sectional view of the compressor according to the present invention.
- FIG. 7 is a top view showing an example of a conventional electric motor rotor.
- the motor rotor 10 includes a cylindrical rotor laminated steel plate 14 having a shaft hole 12 and rotor end plates 16 a and 16 b, and a circle around the shaft hole 12.
- Six refrigerant gas holes 18 having long holes in the circumferential direction and six rivet holes 20 provided at equal intervals in the circumferential direction outside the diameter are provided.
- the refrigerant gas hole 18 and the rivet hole 20 are holes that penetrate the motor rotor 10 in the axial direction.
- the rivet holes 20 are arranged rotationally symmetrically at positions avoiding the six magnets 21 (permanent magnets) arranged at rotationally symmetrical positions in the rotor laminated steel sheet 14. Since the rivets are preferably inserted and arranged at equal intervals in the circumferential direction in order to fix the rotor components, the rivets are inserted into three rivet holes 20a arranged at equal intervals in the circumference. Accordingly, no rivets are inserted into three of the six rivet holes 20.
- the refrigerant gas hole 18 is provided at a rotationally symmetric position near the shaft hole 12, and is provided at a position where the magnetic path of the rotor 10 is narrowed and the motor efficiency is not deteriorated.
- An oil separation plate 24 for improving the oil separation efficiency is provided on the end surface of the rotor 10 on the side opposite to the compression portion.
- the oil separation plate 24 is formed of a thin plate so that it can be easily processed by a press.
- the oil separating plate 24 is provided with a through hole 26 at a position corresponding to the positioning hole 20b of the rotor 10 so that a positioning pin can be inserted into the positioning hole 20b of the rotor 10.
- a positioning pin can be inserted into the rotor 10 from the through hole 26.
- the motor rotor 10 includes arc-shaped balance weights 22a and 22b on both end surfaces.
- the upper and lower balance weights 22a and 22b are arranged at positions where the phases are different from each other by 180 °.
- the upper balance weight 22a is fixed to the rotor laminated steel plate 14 via the rotor end plate 16a by rivets 28a and 28b passing through the rivet dedicated holes 20a at the two ends.
- the lower balance weight 22b is fixed to the rotor laminated steel plate 14 via the rotor end plate 16b by a rivet 28c passing through one central rivet hole 20a, and a convex portion 30 formed at two end portions. And the recess 32 formed in the rotor end plate 16b are positioned by fitting.
- FIG. 6 is a sectional side view of a rotary compressor provided with an electric motor rotor according to the present invention.
- the motor rotor 10 When manufacturing the rotary compressor 100 as shown in FIG. 6, the motor rotor 10 is magnetized after the motor rotor 10 is fixed to the shaft 36 of the compression portion 34 by shrink fitting. Since the motor rotor 10 is fixed to the shaft 36 of the compression part 34, the positioning pin is inserted into the positioning hole 20b of the rotor end surface 10a on the side opposite to the compression part far from the compression part 34.
- a positioning pin is inserted into the positioning hole 20 b of the motor rotor 10 through the through hole 26 of the oil separation plate 24.
- a positioning pin is inserted into the electric motor rotor 10, whereby the position of the electric motor rotor 10 in the rotational direction is adjusted to a predetermined position, and magnetization is performed.
- the positioning pin also plays a role of preventing rotation. After the completion of magnetization, the positioning pin is removed from the motor rotor 10 and the process proceeds to the next step.
- a rivet is not inserted into at least one hole 20b among the plurality of rivet holes 20 provided in the motor rotor 10, it can be used as a positioning hole at the time of magnetizing the rotor.
- the oil separation plate 24 has a small through hole as small as a rivet hole for insertion into the positioning hole 20b on the rotor laminated steel plate 14 side. Therefore, the decrease in oil separation efficiency can be minimized.
- the motor rotor having six magnetic poles has been described.
- the present invention is not limited to six magnetic poles, and four magnets (permanent magnets) are arranged in a rotationally symmetrical position in the rotor laminated steel sheet 14. It may be constituted by a four-pole motor rotor arranged in the above, or may be constituted by a multi-pole motor rotor other than four poles.
- the rotor laminated steel plate has a plurality of refrigerant gas holes penetrating in the axial direction. And a plurality of rivet holes arranged in the circumferential direction and penetrating in the axial direction, and positioning pins for positioning at least one of the plurality of rivet holes in the rotational direction when the rotor is magnetized. Therefore, it is not necessary to change the shape of the refrigerant gas hole that affects oil separation efficiency, and it is not necessary to provide a positioning hole separately from the rivet hole. For this reason, it is possible to avoid adversely affecting the magnetic path in the rotor. Therefore, it is possible to suppress the decrease in oil separation efficiency and avoid the decrease in motor efficiency.
- the electric motor rotor according to the present invention is useful for an electric motor rotor having a plurality of holes such as a refrigerant gas hole, a rivet hole, and a positioning hole, and in particular, a rotary compressor and a scroll used for a refrigeration apparatus and the like.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Compressor (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
Description
10a ロータ端面
12 軸孔
14 回転子積層鋼板
16a,16b 回転子端板
18 冷媒ガス孔
20 リベット孔
21 マグネット(永久磁石)
20a リベット専用孔
20b 位置決め孔
22a,22b バランスウェイト
24 油分離板
26 貫通孔
28a,28b,28c リベット
30 凸部
32 凹部
34 圧縮部
36 シャフト
100 ロータリ圧縮機(圧縮機)
Claims (4)
- 永久磁石を内部に備える略円柱状の回転子積層鋼板からなる電動機ロータにおいて、
前記回転子積層鋼板には、軸方向に貫通する複数の冷媒ガス孔と、
円周方向に複数配置され、軸方向に貫通したリベット孔とが設けられ、
前記複数のリベット孔のうち少なくとも1つのリベット孔を、ロータ着磁時に回転方向の位置決めをするための位置決めピンを挿入する位置決め孔として用いるように構成したことを特徴とする電動機ロータ。 - 前記回転子積層鋼板の端面に油分離板を同軸に設け、この油分離板の前記位置決め孔に対応した位置に、位置決めピンを挿通可能な孔を設けたことを特徴とする請求項1に記載の電動機ロータ。
- ロータ極数が6極の電動機ロータであって、前記リベット孔は円周方向等間隔に6箇所設けられ、これらリベット孔のうち円周等配に配置された3箇所はリベットが専ら挿入されるリベット専用孔として、残りのリベット孔は前記位置決め孔として用いるように構成したことを特徴とする請求項1または2に記載の電動機ロータ。
- 請求項1~3のいずれか一つに記載の電動機ロータを備えた圧縮機。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201080012638.7A CN102356237B (zh) | 2009-03-31 | 2010-03-25 | 电动机转子及具备此电动机转子的压缩机 |
EP10758539.0A EP2416013A4 (en) | 2009-03-31 | 2010-03-25 | Electric motor rotor and compressor provided with the same |
US13/257,539 US8659195B2 (en) | 2009-03-31 | 2010-03-25 | Motor rotor and compressor provided with the same |
AU2010231801A AU2010231801B2 (en) | 2009-03-31 | 2010-03-25 | Electric motor rotor and compressor provided with the same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009086486A JP4687810B2 (ja) | 2009-03-31 | 2009-03-31 | 電動機ロータ |
JP2009-086486 | 2009-03-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010113766A1 true WO2010113766A1 (ja) | 2010-10-07 |
Family
ID=42828059
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2010/055251 WO2010113766A1 (ja) | 2009-03-31 | 2010-03-25 | 電動機ロータおよびこれを備えた圧縮機 |
Country Status (6)
Country | Link |
---|---|
US (1) | US8659195B2 (ja) |
EP (1) | EP2416013A4 (ja) |
JP (1) | JP4687810B2 (ja) |
CN (1) | CN102356237B (ja) |
AU (1) | AU2010231801B2 (ja) |
WO (1) | WO2010113766A1 (ja) |
Cited By (1)
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US20120098359A1 (en) * | 2009-03-31 | 2012-04-26 | Naoya Morozumi | Rotor of compressor motor |
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JP5286937B2 (ja) * | 2008-05-27 | 2013-09-11 | 株式会社富士通ゼネラル | ロータリ圧縮機 |
CN102270891B (zh) * | 2010-06-03 | 2013-05-22 | 珠海格力电器股份有限公司 | 自起动永磁同步电机转子及使用该转子的压缩机 |
JP2012202252A (ja) | 2011-03-24 | 2012-10-22 | Sanyo Electric Co Ltd | スクロール圧縮装置 |
WO2012127754A1 (ja) | 2011-03-24 | 2012-09-27 | 三洋電機株式会社 | スクロール圧縮装置 |
CN102237747B (zh) * | 2011-03-24 | 2016-08-10 | 卧龙电气章丘海尔电机有限公司 | 平衡块 |
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JP2013126281A (ja) * | 2011-12-14 | 2013-06-24 | Daikin Ind Ltd | 界磁子の製造方法及び界磁子用の端板 |
JP2014036554A (ja) | 2012-08-10 | 2014-02-24 | Aisin Seiki Co Ltd | ロータヨークおよび該ロータヨークを用いたモータ |
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- 2010-03-25 WO PCT/JP2010/055251 patent/WO2010113766A1/ja active Application Filing
- 2010-03-25 EP EP10758539.0A patent/EP2416013A4/en not_active Withdrawn
- 2010-03-25 CN CN201080012638.7A patent/CN102356237B/zh active Active
- 2010-03-25 US US13/257,539 patent/US8659195B2/en active Active
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Also Published As
Publication number | Publication date |
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JP2010236453A (ja) | 2010-10-21 |
JP4687810B2 (ja) | 2011-05-25 |
CN102356237A (zh) | 2012-02-15 |
EP2416013A1 (en) | 2012-02-08 |
US20120007455A1 (en) | 2012-01-12 |
EP2416013A4 (en) | 2017-04-12 |
AU2010231801B2 (en) | 2012-12-13 |
US8659195B2 (en) | 2014-02-25 |
CN102356237B (zh) | 2015-01-28 |
AU2010231801A1 (en) | 2011-10-13 |
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