WO2007116508A1 - リニアモータ - Google Patents
リニアモータ Download PDFInfo
- Publication number
- WO2007116508A1 WO2007116508A1 PCT/JP2006/307395 JP2006307395W WO2007116508A1 WO 2007116508 A1 WO2007116508 A1 WO 2007116508A1 JP 2006307395 W JP2006307395 W JP 2006307395W WO 2007116508 A1 WO2007116508 A1 WO 2007116508A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- linear motor
- permanent magnets
- permanent magnet
- mover
- core
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
- H02K41/03—Synchronous motors; Motors moving step by step; Reluctance motors
-
- 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
- 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
Definitions
- the present invention relates to a linear motor, and in particular, a primary side member of the linear motor constitutes a magnetic circuit with a ring-shaped core, armature teeth, and armature windings, and a permanent magnet is provided through a gap in a part of the ring-shaped core.
- the present invention relates to a rear motor in which the secondary side member of the motor is reciprocated.
- the conventional linear motor has a structure in which a rotating machine is cut open and deployed on a straight line, and includes a stator having armature windings and a mover supported so as to be relatively movable through the stator and a gap. It is configured. Therefore, a large magnetic attractive force acts between the stator and the mover, and the burden on the support mechanism that keeps the air gap constant is large, resulting in an increase in the size of the entire device.
- An object of the present invention is to solve the above-mentioned drawbacks, and devise a method for arranging armature windings and have a compact structure, and also, a primary side member (stator) and a secondary side member (mover)
- the magnetic attraction force acting between the two and the other cancels out, and the secondary motor having the permanent magnet is increased in rigidity while maintaining the characteristics of the magnetic circuit.
- the present invention provides a linear motor having a plurality of permanent magnets arranged along the traveling direction and a core that forms a closed magnetic circuit with a structure facing both the front and back surfaces of the permanent magnets.
- a slit groove is formed in the armature tooth of the core, and a convex member capable of running along the slit groove is provided.
- the present invention provides a linear motor comprising a plurality of permanent magnets arranged along the traveling direction and a core that constitutes a closed magnetic circuit with a structure facing both the front and back surfaces of the permanent magnet.
- a slit groove is formed in the armature tooth of the core, and a convex member capable of running along the slit groove is provided, and the member holding the one or more permanent magnets is the convex member It is characterized by combining with.
- the present invention provides a linear motor including a plurality of permanent magnets arranged along the traveling direction and a core that forms a closed magnetic circuit with a structure facing both the front and back surfaces of the permanent magnets.
- a slit groove is formed in the armature tooth of the core, and a convex member capable of running along the slit groove is provided on both surfaces of the member holding the one or more permanent magnets. And is formed by combining other members.
- FIG. 1 shows a basic configuration of a linear motor according to an embodiment of the present invention.
- FIG. 2 shows a linear core according to an embodiment of the present invention.
- FIG. 3 shows a mover of a linear motor according to an embodiment of the present invention.
- FIG. 4 shows a linear motor movable element according to an embodiment of the present invention.
- FIG. 5 shows the disassembly of the mover of the linear motor according to one embodiment of the present invention.
- FIG. 6 shows a method for assembling the mover of the linear motor according to one embodiment of the present invention.
- FIG. 7 shows the assembly (part 1) of the mover of the linear motor according to another embodiment of the present invention.
- FIG. 8 shows assembly (part 2) of the mover of the linear motor according to another embodiment of the present invention.
- FIG. 9 shows the assembly (part 3) of the mover of the linear motor according to another embodiment of the present invention.
- FIG. 10 shows assembly (part 4) of the armature of the Limomo according to another embodiment of the present invention.
- FIG. 11 shows an exploded view of a mover in a linamo according to another embodiment of the present invention.
- FIG. 12 shows an example of a permanent magnet unit according to the present invention.
- FIG. 13 shows the assembly (part 5) of the mover of the linear motor according to another embodiment of the present invention.
- FIG. 14 shows a coil arrangement of a linear motor according to another embodiment of the present invention.
- FIG. 15 shows a linear motor core and mover according to another embodiment of the present invention.
- FIG. 16 shows a linear mover according to another embodiment of the present invention.
- Fig. 17 shows the configuration of the servo control system applied to the linear motor of the present invention. The figure is shown.
- FIG. 1 shows a basic configuration diagram of a linear motor according to an embodiment of the present invention.
- a linear motor has a structure in which a stator, which is a primary member having an armature winding 4, and a mover, which is a secondary member having a permanent magnet, are relatively movable.
- the basic system configuration is the same as that shown in International Patent Publication No. WO 00/690 0 51.
- the stator of this linear motor comprises a ring-shaped core 1, armature teeth 3, and armature windings 4, and a magnetic circuit is constituted by a part of the ring-shaped core with a gap between the front and back surfaces of the permanent magnet of the mover
- a slit groove 10 is arranged on the armature tooth 3 facing the armature tooth 3 and a convex member 2 20 which can travel along the slit groove 10 of the armature tooth 3 is provided on the permanent magnet surface. It is a characteristic linear motor evening.
- armature teeth 3 facing both the front and rear surfaces of the permanent magnet of the mover 2 10 are arranged through a gap in a part of the ring-shaped core, and guide rails 2 3 0 along the longitudinal direction of the mover.
- the support mechanism 2 3 1 is arranged on the ring-shaped core 1 side in accordance with the guide rail 2 3 0.
- a part of the ring-shaped core is provided with a through hole 8.
- Support mechanisms 2 3 1 are arranged on both sides of the mover 2 1 0, but the shape of the support mechanisms and the mover guide rail (not shown) may be mixed and combined. Absent.
- the support method static air bearings, A non-contact support method using pressure bearings, etc., or a method of supporting by flat sliding, linear guide rail, etc. can be used.
- FIG. 2 shows the concept of a linear core of a linear motor according to an embodiment of the present invention.
- FIG. 2 shows an outline in which a common armature winding 4 is arranged on the odd-numbered ring-shaped core 1a and the even-numbered ring-shaped core 1b.
- Fig. 2 (b) only two ring-shaped cores are shown. However, even if there are two or more odd-numbered and even-numbered ring-shaped cores, one armature winding 4 is arranged. Is possible.
- FIG. 14 shows the concept of a plurality of linear motor coil arrangements according to an embodiment of the present invention.
- the armature winding 4 is an example in which the ring-shaped core is arranged separately on the left and right.
- the armature winding 4 does not necessarily have to be wound around each ring-shaped core in common, and may be disposed anywhere as long as it does not impede movement of the mover 210. Two armature windings are shown, but only one may be selected and combined.
- FIG. 3 shows a linear motor mover according to an embodiment of the present invention.
- convex members 2 2 0 a and 2 2 0 b are provided on the front and back surfaces of the central portion of the mover 2 10, and guide rails 2 3 0 are provided on both sides in the longitudinal direction of the mover 2 1 0.
- the structure is shown.
- the longitudinal direction of the linear motor 2 Increases the rigidity of the mover even if the mover of the secondary member is long. Can be realized. As a result, even if the mover is driven at high speed, the distortion of the mover can be reduced.
- FIG. 4 shows a comparison between a linear motor movable element according to an embodiment of the present invention and a conventional linear motor movable element.
- Fig. 4 (a) shows the mover of the linear motor of the present invention having a structure having a convex member 2 20 on the front and back surfaces of the central part of the mover 2 1 0, and Fig. 4 (b) is movable.
- a conventional linear motor movable element having no convex member is shown on the front and back surfaces of the center part of the child 210.
- the convex member 2 20 is provided on the front and back surfaces of the central portion of the movable element 2 10, so that the secondary sectional moment of the movable element is increased and the rigidity is increased.
- FIG. 5 shows an example in which the mover of the linear motor according to the present invention is disassembled.
- the permanent magnet case 2 500 has a shape in which a plurality of permanent magnets are united.
- the convex member 2 20 is provided with holes at a predetermined interval in the center of the plate for inserting the permanent magnet case 2 5 0, and the shape is such that the permanent magnet case 2 5 0 is sandwiched from both sides.
- the convex members 2 20 a and 2 2 Ob provided on the front and back surfaces of the central portion of the movable element 2 10 shown in FIG. There is an effect that can be formed with 2 0.
- FIG. 6 shows an example of assembling a mover that is a secondary member of the linear motor of the present invention.
- the permanent magnet case 2 5 0 is configured by arranging the permanent magnets 2 1 1 at predetermined intervals so as to be in the order of N pole, S pole, N pole, and S pole.
- a common permanent magnet case 2 5 0 is formed, and this case By inserting the permanent magnet 2 1 1 into the base and inserting it into the convex 2 2 0, it is possible to assemble the mover that is the secondary side member.
- FIG. 7 shows another example of assembling the linear motor movable element of the present invention.
- the shape of the permanent magnet case 2 50 and the shape of the convex member 2 20 are the same as those in FIG. 6, but a plurality of permanent magnets 2 1 1 are arranged to have the same polarity.
- the permanent magnets 2 1 1 are arranged in N, N, S, and S poles.
- FIG. 8 shows another embodiment of assembling the linear actuator of the present invention.
- the permanent magnet case 2 5 0 is manufactured more simply than in the previous embodiment, and instead the parts located on both sides of the permanent magnet case are provided as spacers 2 4 1 and assembled. It is configured.
- the permanent magnet case 2 5 0 is configured by arranging the permanent magnets 2 1 1 at predetermined intervals so that the order is N pole, S pole, N pole, S pole.
- the shape of the permanent magnet case 2 5 0 and the shape of the convex member 2 2 0 are the same as in FIG. 9, but a plurality of permanent magnets 2 1 1 are arranged to have the same polarity. That is different.
- Fig. 10 shows an example in which the permanent magnets 2 1 1 are arranged so as to have N, N, S, and S poles.
- a mover that is a secondary member can be easily configured by combining with a convex member 220 using a permanent magnet case of the same shape. Can be realized.
- FIG. 11 shows another embodiment in which the mover which is the secondary side member of the rear motor of the present invention is disassembled.
- a permanent magnet case 2 5 0 is sandwiched in the central hole of the projection 2 2 0, and a spacer 2 4 1 is provided between the permanent magnet case and the guide rail 2 3 0. It is a mechanism that suppresses the permanent magnet case and spacer 2 4 1.
- Each part can be fixed with adhesive, welding, port, pin, rivet, etc.
- Fig. 12 shows an example of a permanent magnet unit of the present invention.
- Fig. 12 (a) and (b) is a type in which a permanent magnet case is provided with a permanent magnet. A common permanent magnet case is created and a permanent magnet is incorporated therein. Thus, even a mover that is a long secondary member can be realized.
- Fig. 12 (c) shows an example in which one permanent magnet block is magnetized so as to have a plurality of poles. By adopting this permanent magnet block, the mover of the secondary side member with higher strength can be obtained. Can be realized.
- Fig. 12 (d) shows an example of unitizing only a single permanent magnet into a unit, and it is possible to form a mover that is a secondary member using fewer members. Can be realized.
- FIG. 13 shows another embodiment of assembling the movable arm of the linmo evening of the present invention.
- the shape of the permanent magnet can be formed in a shape other than a square.
- a linear motor using a ferromagnetic material can be used instead of the permanent magnet 2 1 1 constituting the mover 2 10 shown in the linear motor of the present invention, and has a structure in which a permanent magnet and a ferromagnetic material are combined.
- a linear motor is also possible.
- there is a combination linear motor in which electromagnets using air-core coils instead of permanent magnets, or electromagnets with a coil wound around a ferromagnetic material are arranged in the order of N poles, S poles, N poles, S poles. It is possible to configure.
- FIG. 15 shows a linear motor core and mover according to another embodiment of the present invention.
- FIG. 15 (a) a part of the ring-shaped core is provided with a plurality of slit grooves 10 in the armature teeth 3 facing the both surfaces of the permanent magnet of the mover 2 10 through the gap
- Fig. 15 shows an example of the arrangement of 3 places at the top and 3 places at the bottom.
- FIG. 15 (b) shows an example in which a plurality of convex members 2 20 are provided on both the front and back surfaces of the mover 2 10 corresponding to the groove shape of the armature teeth. .
- FIG. 16 shows a mover of a linear motor according to another embodiment of the present invention.
- Fig. 16 (a) shows a case where a plurality of convex members are arranged on both the front and back surfaces of the mover 2 10 at two locations slightly shifted from the central portion. It is possible to increase the rigidity of the mover.
- FIG. 16 (b) shows a case in which convex members are arranged on only one side of the front and back surfaces of the mover 2 10 along the longitudinal direction of the mover 2 10. It is possible to increase the rigidity of the mover.
- FIG. 17 shows a configuration diagram of a servo control system using the linear motor of the present invention.
- the linear motor 20 according to the present invention is a system that is connected to a moving body 21 and includes a driver 2 2, a controller 23, a displacement sensor 1 24, etc., and is driven in accordance with a target command.
- Fig. 17 shows a closed loop control system configuration using a displacement sensor 24, open loop control without a displacement sensor is possible depending on the application.
- a high-precision, high-performance support control system can be configured using a current sensor, magnetic pole detection sensor, etc. (not shown).
- the displacement sensor 1 24 has an encoder scale (not shown) arranged along the longitudinal direction of the mover 2 10 and faces the encoder scale, as in the conventional linear motor.
- the location will be equipped with an encoder detector (not shown) and can be used as a linear drive.
- the mover is on the permanent magnet side and the stator is on the armature winding side.
- the armature winding side is on the armature winding side.
- the permanent magnet side can be used as the stator.
- each component of the linear motor shown in each figure may be combined across the two regardless of the embodiment in each figure, or may be molded by a combination thereof.
- Industrial applicability As described above, according to the present invention, the magnetic attraction force acting between the stator and the mover is offset while the armature winding arrangement method is devised and the structure is compact. Can provide a simple linear motor. Furthermore, it is possible to provide a linear motor in which the rigidity of a member made of permanent magnet is increased.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electromagnetism (AREA)
- Linear Motors (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNA2006800526716A CN101371428A (zh) | 2006-03-31 | 2006-03-31 | 线性电动机 |
PCT/JP2006/307395 WO2007116508A1 (ja) | 2006-03-31 | 2006-03-31 | リニアモータ |
JP2008509659A JPWO2007116508A1 (ja) | 2006-03-31 | 2006-03-31 | リニアモータ |
US12/280,014 US20090026847A1 (en) | 2006-03-31 | 2006-03-31 | Linear motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2006/307395 WO2007116508A1 (ja) | 2006-03-31 | 2006-03-31 | リニアモータ |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007116508A1 true WO2007116508A1 (ja) | 2007-10-18 |
Family
ID=38580817
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/307395 WO2007116508A1 (ja) | 2006-03-31 | 2006-03-31 | リニアモータ |
Country Status (4)
Country | Link |
---|---|
US (1) | US20090026847A1 (ja) |
JP (1) | JPWO2007116508A1 (ja) |
CN (1) | CN101371428A (ja) |
WO (1) | WO2007116508A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013124875A1 (ja) * | 2012-02-20 | 2013-08-29 | 株式会社 日立製作所 | リニアモータ |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITPD20110124A1 (it) * | 2011-04-15 | 2012-10-16 | Topp S P A A Socio Unico | Guida per attuatori lineari a magneti permanenti |
CN102330265A (zh) * | 2011-08-05 | 2012-01-25 | 武汉纺织大学 | 针织机械中的电织针阵列 |
CN108141126B (zh) | 2015-10-14 | 2020-05-19 | 费斯托股份有限两合公司 | 电力直线马达和测试装置 |
US10476364B2 (en) * | 2016-06-15 | 2019-11-12 | Asm Technology Singapore Pte Ltd | Magnet assembly mounting arrangement for an electromagnetic motor |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09511380A (ja) * | 1995-02-03 | 1997-11-11 | クラウス−マツフアイ アクチエンゲゼルシヤフト | 同期リニアモータ |
JP2002078315A (ja) * | 2000-06-16 | 2002-03-15 | Hitachi Kiden Kogyo Ltd | リニアモータ |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE521607C2 (sv) * | 2000-04-07 | 2003-11-18 | Abb Ab | En linjär elektrisk maskin |
JP3861593B2 (ja) * | 2000-12-11 | 2006-12-20 | 株式会社日立製作所 | リニアモータ |
SE0104378D0 (sv) * | 2001-12-21 | 2001-12-21 | Volvo Teknisk Utveckling Ab | Elektrisk anordning |
US7218019B2 (en) * | 2002-12-06 | 2007-05-15 | Foster-Miller, Inc | Linear reluctance motor |
-
2006
- 2006-03-31 JP JP2008509659A patent/JPWO2007116508A1/ja not_active Withdrawn
- 2006-03-31 CN CNA2006800526716A patent/CN101371428A/zh active Pending
- 2006-03-31 WO PCT/JP2006/307395 patent/WO2007116508A1/ja active Application Filing
- 2006-03-31 US US12/280,014 patent/US20090026847A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09511380A (ja) * | 1995-02-03 | 1997-11-11 | クラウス−マツフアイ アクチエンゲゼルシヤフト | 同期リニアモータ |
JP2002078315A (ja) * | 2000-06-16 | 2002-03-15 | Hitachi Kiden Kogyo Ltd | リニアモータ |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013124875A1 (ja) * | 2012-02-20 | 2013-08-29 | 株式会社 日立製作所 | リニアモータ |
JPWO2013124875A1 (ja) * | 2012-02-20 | 2015-05-21 | 株式会社日立製作所 | リニアモータ |
US10128732B2 (en) | 2012-02-20 | 2018-11-13 | Hitachi, Ltd. | Linear motor |
Also Published As
Publication number | Publication date |
---|---|
CN101371428A (zh) | 2009-02-18 |
US20090026847A1 (en) | 2009-01-29 |
JPWO2007116508A1 (ja) | 2009-08-20 |
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