WO2021181516A1 - 可動子及びリニアサーボモータ - Google Patents

可動子及びリニアサーボモータ Download PDF

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Publication number
WO2021181516A1
WO2021181516A1 PCT/JP2020/010255 JP2020010255W WO2021181516A1 WO 2021181516 A1 WO2021181516 A1 WO 2021181516A1 JP 2020010255 W JP2020010255 W JP 2020010255W WO 2021181516 A1 WO2021181516 A1 WO 2021181516A1
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WO
WIPO (PCT)
Prior art keywords
magnet
teeth
mover
core
movable
Prior art date
Application number
PCT/JP2020/010255
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
久範 鳥居
諭 山代
慧大 平野
哲哉 植田
Original Assignee
三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to JP2020544315A priority Critical patent/JP6804705B1/ja
Priority to KR1020227029988A priority patent/KR102523909B1/ko
Priority to CN202080098113.3A priority patent/CN115280654B/zh
Priority to PCT/JP2020/010255 priority patent/WO2021181516A1/ja
Priority to TW110105664A priority patent/TWI756057B/zh
Publication of WO2021181516A1 publication Critical patent/WO2021181516A1/ja

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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
    • H02K1/34—Reciprocating, oscillating or vibrating 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
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/223—Rotor cores with windings and permanent magnets
    • 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

Definitions

  • the present disclosure relates to a mover and a linear servomotor having a core in which a magnet is embedded.
  • a mover is composed of a mover core and a coil in which the teeth protrude from a core back extending in the movable direction, and a stator is composed of a magnet and a pedestal.
  • the coil of the mover is arranged in a slot which is a gap between the teeth and wound around the teeth.
  • the linear servomotor has a structure in which magnets are provided on the stator, if the length of the stator is increased in order to increase the movable distance of the motor, the number of magnets will increase and the cost will increase. If the number of magnets per unit length is reduced in order to prevent an increase in cost, the thrust of the mover will decrease.
  • Patent Document 1 discloses a linear servomotor in which a magnet is embedded in a mover core.
  • the linear servomotor disclosed in Patent Document 1 increases the magnetic flux passing through the teeth by providing a width expanding portion on the portion of the teeth on the stator side.
  • a magnet since a magnet is not arranged on the stator, an increase in cost due to a long movable distance is suppressed.
  • the present disclosure has been made in view of the above, and an object of the present disclosure is to obtain a mover having improved thrust rather than having the magnetic field of the teeth perpendicular to the movable direction and on the stator side.
  • the mover according to the present disclosure is formed by a core divided in the movable direction and a magnet sandwiched between the cores, and is a core back extending in the movable direction. It has a mover core having a shape in which a plurality of teeth protrude from the teeth, and a coil wound around each of the teeth.
  • the magnetic flux entering the core from the magnet includes a directional component in the movable direction and a directional component in the direction of the tip of the teeth, which is the direction from the core back to the teeth.
  • the magnetic flux entering the magnet from the core includes a directional component in the movable direction and a directional component in the direction of the root of the teeth, which is the direction from the teeth to the core back.
  • the mover according to the present disclosure has an effect that the thrust can be improved as compared with the case where the magnetic field of the teeth is perpendicular to the moving direction and on the stator side.
  • FIG. 1 Perspective view of the linear servomotor according to the first embodiment Sectional drawing of the linear servomotor which concerns on Embodiment 1.
  • Cross-sectional view of the mover of the linear servomotor according to the first embodiment The figure which shows the method of magnetizing the magnet of the mover of the linear servomotor which concerns on Embodiment 1.
  • Cross-sectional view of the mover of the linear servomotor according to the second embodiment The figure which shows the method of magnetizing the magnet of the mover of the linear servomotor which concerns on Embodiment 2.
  • Cross-sectional view of the mover of the linear servomotor according to the third embodiment The figure which shows the modification of the mover of the linear servomotor which concerns on Embodiment 3.
  • Cross-sectional view of the mover of the linear servomotor according to the fourth embodiment Cross-sectional view of the mover of the linear servomotor according to the fifth embodiment.
  • FIG. 1 is a perspective view of the linear servomotor according to the first embodiment.
  • FIG. 2 is a cross-sectional view of the linear servomotor according to the first embodiment.
  • the linear servomotor 10 has a mover 1 and a stator 2.
  • the stator 2 has a rod shape in which protrusions 21 are arranged at equal intervals.
  • the mover 1 moves in the arrangement direction of the protrusions 21 of the stator 2. That is, the arrangement direction of the protrusions 21 of the stator 2 is also the movable direction of the mover 1.
  • the movable direction of the mover 1 is indicated by an arrow A.
  • the mover 1 has a mover core 40 and a coil 13 having a shape in which a plurality of teeth 14 project from a core back 15 extending in a movable direction.
  • the mover core 40 is formed by a core 11 divided in a movable direction and a magnet 12 sandwiched between the cores 11.
  • the direction from the core back 15 to the teeth 14 is referred to as the teeth tip direction
  • the direction from the teeth 14 to the core back 15 is referred to as the teeth root direction.
  • the direction of the tip of the teeth is indicated by an arrow B
  • the direction of the root of the teeth is indicated by an arrow C.
  • a plurality of teeth 14 are arranged in the movable direction of the mover 1, and a coil 13 is wound around each tooth 14.
  • the coil 13 is arranged in a gap called a "slot" between two adjacent teeth 14.
  • the mover 1 moves in the arrangement direction of the teeth 14. That is, the mover 1 and the stator 2 are installed so that the arrangement direction of the teeth 14 and the arrangement direction of the protrusions 21 are the same.
  • the mover core 40 has a structure in which the core 11 is divided at the central portion of the slot 16 in the movable direction. Since the core 11 is divided at the central portion of the slot 16, it is possible to arrange the teeth 14 after winding the coil 13, so that the coil 13 to the teeth 14 can be easily formed.
  • the mover core 40 may have a structure in which the core 11 is not divided in the slot 16. By adopting a structure in which the core 11 is connected without being divided at the portion of the slot 16, the number of parts of the mover core 40 can be reduced.
  • the core 11 has a base portion 111 and a protruding portion 112 protruding from the base portion 111.
  • the base 111 is a part of the core back 15, and the protrusion 112 is a part of the teeth 14.
  • the magnetic flux entering the core 11 from the magnet 12 includes a directional component in the direction of the tip of the teeth in addition to the directional component in the movable direction of the mover 1. Further, at the interface between the protruding portion 112 and the magnet 12 of the core 11, the magnetic flux entering the magnet 12 from the core 11 includes a directional component in the direction of the tooth root in addition to the directional component in the movable direction of the mover 1.
  • FIG. 3 is a diagram showing a modified example of the mover of the linear servomotor according to the first embodiment.
  • the magnetic flux entering the core 11 from the magnet 12 includes a directional component in the movable direction and a directional component in the tooth tip direction
  • the magnetic flux entering the magnet 12 from the core 11 May include a directional component in the movable direction and a directional component in the root direction of the teeth.
  • FIG. 4 is a cross-sectional view of the mover of the linear servomotor according to the first embodiment.
  • the direction of the magnetic flux inside the magnet 12 of the mover 1 according to the first embodiment is indicated by an arrow.
  • the magnetic flux inside the magnet 12 is a curved shape convex in the tooth root direction.
  • FIG. 5 and 6 are diagrams showing a method of magnetizing the magnet of the mover of the linear servomotor according to the first embodiment.
  • a magnetizing yoke 3 provided with a yoke core 31 and a magnetizing coil 32 is arranged on the tip end side of the teeth 14, and the magnetizing coil 32 faces the magnet 12.
  • the magnetic flux inside the magnet 12 is generated by generating an annular magnetizing magnetic field 4 around the axis perpendicular to the tooth tip direction and the tooth root direction and the movable direction of the mover 1.
  • the curved shape can be formed to be convex in the tooth root direction.
  • the direction of the magnetic flux entering the core 11 from the magnet 12 and the magnetic flux entering the magnet 12 from the core 11 is the movable direction, as compared with the case where the magnetic flux enters the magnet 12 from the magnet 12 via the core 11.
  • the magnetic flux entering the protrusion 21 of the stator 2 and the magnetic flux entering the magnet 12 from the protrusion 21 of the stator 2 via the core 11 increase. Therefore, the linear servomotor 10 according to the first embodiment can increase the reluctance torque and improve the thrust of the mover 1.
  • the magnet 12 when the magnet 12 generates a magnetic field in the tooth tip direction which is perpendicular to the movable direction and is in the direction of the stator 2, in order to improve the thrust, the magnet 12 having a large size in the movable direction is arranged in the tooth 14. It is necessary to increase the size of the teeth 14 in the movable direction. However, when the size of the teeth 14 in the movable direction becomes large, the slot 16 which is the installation space of the coil 13 becomes narrow, which hinders the improvement of the thrust.
  • the linear servomotor 10 when the magnet 12 generates a magnetic field in the direction of the tip of the teeth, increasing the magnetic flux entering the protrusion of the stator 2 from the magnet 12 weakens the magnetic force generated by the coil 13, so that the thrust of the mover 1 Is difficult to improve.
  • the slot 16 is not narrowed because it is not necessary to increase the size of the magnet 12 arranged in the teeth 14 in the movable direction. Therefore, the linear servomotor 10 according to the first embodiment can increase the reluctance torque and improve the thrust of the mover without reducing the number of turns of the coil 13.
  • the direction of the magnetizing magnetic field 4 and the magnetization direction of the magnet 12 tend to be the same, so that the magnet 12 is magnetized.
  • the magnetization direction component of the magnetic field 4 becomes large, and the magnet 12 can be easily magnetized.
  • the magnetic flux entering the protruding portion 112 of the core 11 from the magnet 12 includes a directional component in the movable direction of the mover 1 and a directional component in the direction of the tip of the teeth, and the magnetic flux entering the magnet 12 from the protruding portion 112 of the core 11 is a mover. It suffices to include the directional component in the movable direction of 1 and the directional component in the direction of the root of the tooth, and the magnetic flux inside the magnet 12 does not have to be curved.
  • FIG. 7 is a cross-sectional view of a mover of the linear servomotor according to the second embodiment.
  • the direction of the magnetic flux inside the magnet 12 of the mover 1 according to the second embodiment is indicated by an arrow.
  • the bending direction of the magnetic flux inside the magnet 12 is different between the core back 15 and the teeth 14.
  • the magnetic flux inside the magnet 12 has a curved shape convex in the tooth tip direction.
  • the magnetic flux inside the magnet 12 has a curved shape that is convex in the direction of the root of the tooth in a cross section including a plane formed by the direction of the tip of the tooth and the direction of the root of the tooth and the direction of movement of the mover 1.
  • FIG. 8 is a diagram showing a method of magnetizing the magnet of the mover of the linear servomotor according to the second embodiment.
  • the magnetizing yoke 3 provided with the yoke core 31 and the magnetizing coil 32 sandwiches the mover 1 from both directions in the direction in which the teeth 14 extend, and the magnetizing coil 32 faces the magnet 12. Then, by generating a magnetizing magnetic field 4 in an annular shape around the axis perpendicular to the tooth tip direction and the tooth root direction and the movable direction of the mover 1, the magnetic flux inside the magnet 12 is set to the tooth tip direction and the tooth root direction.
  • the direction of the curvature of the magnetic curve at the teeth 14 and the direction of the curvature of the magnetic curve at the core back 15 can be reversed.
  • the magnet 12 of the core back 15 is more likely to be magnetized than the case where the entire magnet 12 is magnetized from the tip side of the teeth 14. Therefore, the magnetic force of the magnet 12 can be increased to improve the thrust of the mover 1.
  • FIG. 9 is a cross-sectional view of a mover of the linear servomotor according to the third embodiment.
  • the direction of the magnetic flux inside the magnet 12 of the mover 1 according to the third embodiment is indicated by an arrow.
  • FIG. 9 is a cross-sectional view showing the direction of the magnetic flux inside the magnet of the mover of the linear servomotor according to the third embodiment.
  • the magnet 12 is composed of two magnet pieces 12a and 12b arranged in the movable direction.
  • the magnetic flux inside each of the two magnet pieces 12a and 12b is linear in a cross section including a plane formed by the tooth tip direction and the tooth root direction and the movable direction of the mover 1.
  • the internal magnetic flux is the tooth root in the cross section including the plane formed by the tooth tip direction and the tooth root direction and the movable direction of the mover 1. It is a curved line that is convex in the direction.
  • the ferromagnet used as the material of the magnet 12 has magnetic anisotropy, and there are a direction in which it is easily magnetized and a direction in which it is difficult to be magnetized.
  • the magnet 12 according to the third embodiment since the magnetic flux is not curved inside the magnet pieces 12a and 12b, the magnet 12 is formed by magnetizing each of the two magnet pieces 12a and 12b in a direction in which they are easily magnetized. As a whole, the internal magnetic flux can be made into a bending line.
  • FIG. 10 is a diagram showing a modified example of the mover of the linear servomotor according to the third embodiment.
  • the direction of the magnetic flux inside the magnet 12 of the mover 1 according to the modified example of the third embodiment is indicated by an arrow.
  • the magnets 12 are arranged in two in each of the tooth tip direction, the tooth root direction, and the movable direction of the mover 1, for a total of four magnet pieces 12a, It is composed of 12b, 12c, and 12d.
  • the magnetic flux inside the magnet 12 is a curved line that is convex in the direction of the tip of the tooth in a cross section including a plane formed by the direction of the tip of the tooth and the direction of the root of the tooth and the direction of movement of the mover 1.
  • the magnetic flux inside the magnet 12 is a curved line that is convex in the direction of the root of the teeth in a cross section including a plane formed by the direction of the tip of the teeth and the direction of the root of the teeth and the direction of movement of the mover 1.
  • the magnet 12 When the magnet 12 is not divided into a plurality of magnet pieces, if the magnetic flux is bent inside the magnet 12, there will be a portion magnetized in a direction in which it is difficult to be magnetized. Therefore, the magnetic force of the magnet 12 should be increased. Becomes difficult.
  • the direction of the magnetic flux is bent inside the magnet 12 by arranging the plurality of magnetized pieces 12a, 12b, 12c, 12d along the direction in which the magnet 12 is likely to be magnetized. The magnetic force can be increased. Therefore, the mover 1 according to the third embodiment can improve the thrust as compared with the structure in which the magnet 12 is not divided into a plurality of magnet pieces.
  • FIG. 11 is a cross-sectional view of a mover of the linear servomotor according to the fourth embodiment.
  • the thickness of the magnet 12 is different only in the second tooth 14 from the end of the teeth 14. Specifically, the thickness L2 of the magnet 12 of the second tooth 14 from the end is thinner than the thickness L1 of the magnet 12 of the other teeth 14. Other than this, it is the same as the mover 1 according to the first embodiment.
  • the positional relationship between the protrusion 21 of the stator 2 and the magnet 12 changes periodically due to the movement of the mover 1.
  • the force with which the magnet 12 attracts the protrusion 21 of the stator 2 also changes periodically, and the magnet 12 is located where the attraction is maximized. When passing through, it becomes a resistance force that hinders the movement of the mover 1. This phenomenon is commonly referred to as cogging. Since the teeth 14 at the movable end of the mover 1 are adjacent to the other teeth 14 on only one side in the movable direction, they are easily affected by cogging.
  • the mover 1 according to the fourth embodiment is the second from the end because the magnet 12 of the tooth 14 second from the end in the movable direction of the mover 1 is thinner than the magnet 12 of the other teeth 14.
  • the magnetic flux generated by the magnet 12 of the teeth 14 is weaker than the magnetic flux generated by the magnets 12 of the other teeth 14. Therefore, the teeth 14 at the movable end of the mover 1 according to the fourth embodiment are less susceptible to cogging. Therefore, the mover 1 according to the fourth embodiment can reduce cogging and save energy.
  • FIG. 12 is a cross-sectional view of a mover of the linear servomotor according to the fifth embodiment.
  • the direction of the magnetic flux inside the magnet 12 of the mover 1 according to the fifth embodiment is indicated by an arrow.
  • the easy magnetization direction of the grain-oriented electrical steel sheet is indicated by a white arrow.
  • the core 11 is made of a grain-oriented electrical steel sheet.
  • the core 11 includes a magnet contact portion 11a that contacts the magnet 12 and a core connecting portion 11b that connects the cores 11 to each other.
  • the directions in which the grain-oriented electrical steel sheet is easily magnetized at the magnet contact portion 11a are the tooth tip direction and the tooth root direction.
  • the magnetic flux entering the core 11 from the magnet 12 is easily transmitted to the tip side of the tooth 14. Therefore, as compared with the case where the core 11 does not have an easy magnetization direction, the magnetic flux entering the protrusion 21 of the stator 2 increases, so that the thrust of the mover 1 improves. Similarly, the magnetic flux generated by the coil 13 easily enters the protrusion 21 of the stator 2, so that the thrust of the mover 1 is improved.
  • the magnetic flux generated by the magnetizing coil 32 easily passes through the magnet 12, so that the magnet 12 can be easily magnetized.
  • both the magnetic flux generated by the magnet 12 and the magnetic flux generated by the coil 13 are likely to enter the protrusion 21 of the stator 2, so that the thrust can be improved.
  • FIG. 13 is a cross-sectional view of a mover of a linear servomotor according to a modified example of the fifth embodiment.
  • the direction of the magnetic flux inside the magnet 12 of the mover 1 according to the modified example of the fifth embodiment is indicated by an arrow.
  • the direction in which the grain-oriented electrical steel sheet is easily magnetized is indicated by a white arrow.
  • the easy magnetization direction of the core connecting portion 11b of the core 11 is the movable direction of the mover 1. Since the easy magnetization direction of the core connecting portion 11b is the movable direction of the mover 1, the magnetic flux generated when the coil 13 is energized easily passes through the core connecting portion 11b. Since the magnetic flux generated when the coil 13 is energized easily passes through the core connecting portion 11b, the magnetic flux generated by the coil 13 easily enters the protrusion 21 of the stator 2, so that the thrust of the mover 1 can be improved. ..
  • FIG. 14 is a cross-sectional view of a mover of the linear servomotor according to the sixth embodiment.
  • the direction of the magnetic flux inside the magnet 12 of the mover 1 according to the sixth embodiment is indicated by an arrow.
  • the dimension of the magnet 12 in the movable direction is shorter on the tip side of the teeth 14.
  • the interface between the core 11 and the magnet 12 is inclined obliquely with respect to the movable direction. Therefore, the area of the interface between the core 11 and the magnet 12 is wider than that when the interface between the core 11 and the magnet 12 is perpendicular to the movable direction. Therefore, as compared with the case where the interface between the core 11 and the magnet 12 is perpendicular to the movable direction, the magnetic flux entering the core 11 from the magnet 12 increases, and the thrust of the mover 1 improves.
  • the size of the core 11 is increased by the amount that the size of the magnet 12 in the movable direction is shortened at the tip portion, and the volume of the core 11 in the tooth 14 is the volume of the core 11 and the magnet 12. It is larger than when the interface is vertical. Therefore, the core 11 is less likely to be magnetically saturated, and the magnetic flux that enters the protrusion 21 of the stator 2 from the magnet 12 or the coil 13 through the core 11 can be increased, and the thrust of the mover 1 can be improved.
  • the magnet 12 since the magnet 12 has a thin tapered shape on the tip side of the tooth 14, even if it is attracted by the protrusion 21 of the stator 2, it does not easily come off from the core 11. Therefore, the strength and durability of the mover 1 can be increased.
  • the configuration shown in the above embodiment is an example of the content, can be combined with another known technique, and a part of the configuration is omitted or changed without departing from the gist. It is also possible.

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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)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Vehicle Body Suspensions (AREA)
PCT/JP2020/010255 2020-03-10 2020-03-10 可動子及びリニアサーボモータ WO2021181516A1 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2020544315A JP6804705B1 (ja) 2020-03-10 2020-03-10 可動子及びリニアサーボモータ
KR1020227029988A KR102523909B1 (ko) 2020-03-10 2020-03-10 가동자 및 리니어 서보 모터
CN202080098113.3A CN115280654B (zh) 2020-03-10 2020-03-10 可动件及线性伺服电动机
PCT/JP2020/010255 WO2021181516A1 (ja) 2020-03-10 2020-03-10 可動子及びリニアサーボモータ
TW110105664A TWI756057B (zh) 2020-03-10 2021-02-19 可動子及線性伺服馬達

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2020/010255 WO2021181516A1 (ja) 2020-03-10 2020-03-10 可動子及びリニアサーボモータ

Publications (1)

Publication Number Publication Date
WO2021181516A1 true WO2021181516A1 (ja) 2021-09-16

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PCT/JP2020/010255 WO2021181516A1 (ja) 2020-03-10 2020-03-10 可動子及びリニアサーボモータ

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JP (1) JP6804705B1 (zh)
KR (1) KR102523909B1 (zh)
CN (1) CN115280654B (zh)
TW (1) TWI756057B (zh)
WO (1) WO2021181516A1 (zh)

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KR102529748B1 (ko) * 2021-03-29 2023-05-09 미쓰비시덴키 가부시키가이샤 착자 장치

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JPH03139159A (ja) * 1989-10-20 1991-06-13 Shinko Electric Co Ltd パルスモータ
JPH06327223A (ja) * 1993-05-11 1994-11-25 Shinko Electric Co Ltd パルスモータ
JP2002238241A (ja) * 2001-02-09 2002-08-23 Yaskawa Electric Corp リニアモータ
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WO2015072328A1 (ja) * 2013-11-12 2015-05-21 日立金属株式会社 磁界発生装置及びリニアモータ
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WO2017216995A1 (ja) * 2016-06-17 2017-12-21 三菱電機株式会社 永久磁石式同期機および永久磁石式同期機の固定子の製造方法

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JPH03124292A (ja) * 1989-10-03 1991-05-27 Matsushita Electric Ind Co Ltd リニアサーボモータ用リニアセンサ
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JP2009011115A (ja) * 2007-06-29 2009-01-15 Yokogawa Electric Corp パルスモータ
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JP6016833B2 (ja) * 2014-03-10 2016-10-26 三菱電機株式会社 電気機械
KR101896858B1 (ko) * 2015-05-26 2018-09-07 미쓰비시덴키 가부시키가이샤 전기자 코어, 전기자 및 리니어 모터
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03139159A (ja) * 1989-10-20 1991-06-13 Shinko Electric Co Ltd パルスモータ
JPH06327223A (ja) * 1993-05-11 1994-11-25 Shinko Electric Co Ltd パルスモータ
JP2002238241A (ja) * 2001-02-09 2002-08-23 Yaskawa Electric Corp リニアモータ
JP2002369492A (ja) * 2001-06-06 2002-12-20 Hitachi Metals Ltd 永久磁石及びこれを用いた磁場発生用磁気回路並びにリニアアクチュエータ
WO2015072328A1 (ja) * 2013-11-12 2015-05-21 日立金属株式会社 磁界発生装置及びリニアモータ
WO2017169046A1 (ja) * 2016-03-29 2017-10-05 三菱電機株式会社 同期リニアモータ
WO2017216995A1 (ja) * 2016-06-17 2017-12-21 三菱電機株式会社 永久磁石式同期機および永久磁石式同期機の固定子の製造方法

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JPWO2021181516A1 (zh) 2021-09-16
KR102523909B1 (ko) 2023-04-20
TWI756057B (zh) 2022-02-21
KR20220124293A (ko) 2022-09-13
JP6804705B1 (ja) 2020-12-23
TW202135436A (zh) 2021-09-16
CN115280654B (zh) 2023-07-21
CN115280654A (zh) 2022-11-01

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