WO2023101091A1 - Appareil d'assemblage de stator - Google Patents

Appareil d'assemblage de stator Download PDF

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Publication number
WO2023101091A1
WO2023101091A1 PCT/KR2021/019466 KR2021019466W WO2023101091A1 WO 2023101091 A1 WO2023101091 A1 WO 2023101091A1 KR 2021019466 W KR2021019466 W KR 2021019466W WO 2023101091 A1 WO2023101091 A1 WO 2023101091A1
Authority
WO
WIPO (PCT)
Prior art keywords
stator
gripper
line
stator coil
flat table
Prior art date
Application number
PCT/KR2021/019466
Other languages
English (en)
Korean (ko)
Inventor
구본민
박성모
선상욱
강민수
Original Assignee
엘지전자 주식회사
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 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Publication of WO2023101091A1 publication Critical patent/WO2023101091A1/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • H02K15/024—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies with slots
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J11/00—Manipulators not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J11/00—Manipulators not otherwise provided for
    • B25J11/005—Manipulators for mechanical processing tasks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J9/00—Programme-controlled manipulators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J9/00—Programme-controlled manipulators
    • B25J9/0096—Programme-controlled manipulators co-operating with a working support, e.g. work-table
    • 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
    • H02K1/16—Stator cores with slots for windings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/06—Embedding prefabricated windings in machines
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/06—Embedding prefabricated windings in machines
    • H02K15/062—Windings in slots; salient pole windings
    • H02K15/065—Windings consisting of complete sections, e.g. coils, waves
    • H02K15/066—Windings consisting of complete sections, e.g. coils, waves inserted perpendicularly to the axis of the slots or inter-polar channels
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/12—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots

Definitions

  • the present invention relates to a stator assembly device. More specifically, the present invention relates to a stator assembling device for assembling a stator coil and a stator core of a motor with each other.
  • a motor has a stator (stator) and a rotor (rotor) rotatably disposed on the stator.
  • the stator is provided with a stator coil for supplying electricity, and the stator coil is wound around the stator through a plurality of slots formed in the stator.
  • the stator core has slots and teeth, and the stator coil is inserted into the slots of the stator core to be wound.
  • a conductor segment or hairpin magnet wire (hereinafter referred to as “hairpin”) formed by bending a flat copper wire having a relatively large conductor cross section into an approximate “V” shape is used.
  • a stator coil formed by inserting a plurality of hairpins into slots and connecting them in a preset pattern is wound.
  • the present invention is to solve the above problems, and to provide a stator assembly device capable of stably inserting and installing a stator coil into a stator core.
  • stator assembly device that prevents the stator coil from being caught when the stator coil is caught and transferred.
  • an object of the present invention is to provide a stator assembly device that prevents the stator coil from being deformed while firmly fixing the stator coil when the stator coil is captured and transferred.
  • the present invention is a device for assembling a stator by inserting a stator coil formed by connecting a plurality of hairpin-shaped coils in a preset pattern into a cylindrical stator core, flat plate table; a support portion supported on the flat table and having an internal space; a gripper in the shape of a cylindrical shell located in the inner space of the support and having an expandable first diameter; and a connecting portion located between the flat table and the gripper and having a second diameter smaller than the first diameter.
  • the gripper may be provided by dividing the cylindrical shell shape into a plurality of divided parts.
  • the cylindrical shell shape may be divided into a plurality of divided parts in a vertical direction on the flat table.
  • the boundary of the dividing unit may include a first line; and a second line formed to deviate from the first line.
  • the second line may be parallel to the first line.
  • the outer diameter may be expandable by adjusting the relative distance between the plurality of divisions.
  • the gripper may include an anti-jamming portion preventing the coil from being jammed.
  • At least one of the support part and the gripper may be vertically movable with respect to the flat table.
  • a first transfer unit mounted on the flat table to move the support unit in a vertical direction may be further included.
  • a second transfer unit mounted on the flat table and moving the gripper in a vertical direction may be further included.
  • the present invention is a device for assembling a stator by inserting a stator coil formed by connecting a plurality of hairpin-shaped coils in a preset pattern into a cylindrical stator core, flat plate table; a support portion supported on the flat table and having an internal space; a cylindrical shell-shaped gripper located in the inner space of the support and having an expandable outer diameter; An anti-jamming portion provided in the gripper to prevent the coil from being jammed in a space formed by the expansion of an outer diameter of the gripper may be included.
  • the boundary of the dividing unit may include a first line; and a second line constituting the anti-jamming part formed to be offset from the first line.
  • the gripper may be connected to the flat table by a connection part located on the side of the flat table.
  • the stator coil can be stably inserted into and installed in the stator core without being deformed or caught.
  • the shape of the stator coil can be prevented from being deformed while the gripper firmly fixes the stator coil.
  • FIG. 1 is a perspective view showing a stator applied to an embodiment of the present invention.
  • FIG. 2 is a front view showing a stator coil applied to an embodiment of the present invention.
  • FIG. 3 is a perspective view illustrating a hairpin constituting the stator coil of FIG. 2 .
  • FIG. 4 is a side view illustrating a hairpin constituting the stator coil of FIG. 2 .
  • FIG. 5 is a schematic diagram showing a stator assembly device according to an embodiment of the present invention.
  • FIG. 6 is an enlarged view of a main part of a stator assembly device according to an embodiment of the present invention.
  • FIG. 7 to 9 are assembly step diagrams illustrating a process of assembling a stator coil to a stator core by a stator assembly apparatus according to an embodiment of the present invention.
  • FIG. 1 is a perspective view showing a stator applied to an embodiment of the present invention.
  • 2 is a front view showing a stator coil applied to an embodiment of the present invention.
  • a stator 100 applied to an embodiment of the present invention may include a stator core 110 and a stator coil 120 wound around the stator core 110 .
  • the stator core 110 may have an approximately circular (cylindrical shell) cross section.
  • the stator coil 120 may be formed by winding a plurality of hairpins 121 inserted into slots (not shown) formed in the stator core 110 in a preset pattern.
  • the plurality of hairpins 121 may form a plurality of coil pairs at one side of the stator coil 120 and may be connected to each other to be energized.
  • the stator coil 120 may be provided by stacking a plurality of hairpins 121 crossing each other.
  • multiple layers of hairpins 121 may be stacked inside the stator core 110, and the multiple layers of hairpins 121 may be stacked while crossing each other.
  • These hairpins 121 may be bent on one side and connected to another hairpin 121 on the other side to form the stator coil 121 .
  • FIG. 2 roughly represents a state in which these hairpins 121 are bent at the top and face downward, and at this time, a plurality of hairpins 121 cross each other and are connected.
  • FIG. 3 is a perspective view illustrating a hairpin constituting the stator coil of FIG. 2 .
  • FIG. 4 is a side view illustrating a hairpin constituting the stator coil of FIG. 2 .
  • the hairpin 121 of a single object may be formed by bending a conductor having a predetermined length into a substantially inverted “V” shape.
  • the conductor forming the hairpin 121 may have a rectangular cross section.
  • Conductors having a rectangular cross section can be layered in the slot, so that the ratio of the area of the conductor to the area of the slot can be increased.
  • An insulating coating may be placed on these conductors.
  • the conductor may be formed of a copper material, and the insulation coating may be formed of a polyimide (PI) material.
  • PI polyimide
  • the lower end of the hairpin 121 may be cross-connected with another lower end. That is, the plurality of hairpins 121 may be connected to each other in a serial direction.
  • the top of the hairpin 121 may be bent into an approximate inverted "V" shape. However, such a bent shape may be formed differently according to the wiring pattern of the stator coil 120 .
  • the hairpin 121 may form a bent portion (A) on the upper side.
  • the hairpin 121 may form a straight portion B extending downward from the bent portion A.
  • a plurality of straight parts B may be disposed parallel to each other while forming a cylindrical angular shape (cylinder shell). That is, the straight parts of the plurality of hair pins 121 may be arranged in parallel while having a predetermined distance from each other.
  • stator coil 120 having the hairpin 121 will be omitted.
  • FIG. 5 is a schematic diagram showing a stator assembly device according to an embodiment of the present invention.
  • 6 is an enlarged view of a main part of a stator assembly device according to an embodiment of the present invention.
  • FIG. 5 schematically shows a stator assembly device 200 combining the stator coil 120 and the stator core 110 described above.
  • FIG. 5 shows a stator assembly device 200 in which a stator coil 120 formed by connecting a plurality of hairpin-shaped coils in a preset pattern is inserted into a cylindrical stator core 110 and assembled.
  • the stator assembly device 200 includes a flat plate table 210, a support part 220 supported on the flat table 210 and having an internal space, and a cylindrical shell-shaped gripper located in the internal space of the support part 220 and having an expandable outer diameter. (gripper; 230).
  • the gripper 230 may be connected to the flat table 210 by a connection unit 235 located on the side of the flat table 210 .
  • the connecting portion 235 may have a cylindrical shape.
  • the gripper 230 may have a cylindrical angular (cylinder shell) shape.
  • the connecting portion 235 may also have a hollow cylindrical angular (cylinder shell) shape.
  • This gripper 230 can hold the stator coil 120 (grip). Specifically, the outer diameter of the gripper 230 is expandable. Accordingly, the outer diameter of the gripper 230 is expanded so that it can contact the support portion 220 . For example, in a state where the stator coil 120 is positioned between the gripper 230 and the support portion 220, the outer diameter of the gripper 230 is expanded so that the stator coil 120 is positioned between the gripper 230 and the support portion 220. can be fixed
  • the gripper 230 may be provided by dividing a cylindrical shell shape into a plurality of divided parts 231 .
  • the cylindrical shell shape of the gripper 230 may include a plurality of divided parts 231 vertically divided in the flat table 210 .
  • the relative distance between the plurality of divided parts 231 may be adjusted so that the outer diameter may be expandable.
  • the outer diameter of the gripper 230 may be expanded as the distance between two adjacent divided parts 231 increases.
  • the outer diameter of the gripper 230 may be reduced as the distance between two adjacent divided parts 231 decreases.
  • the connecting portion 235 may also be composed of a plurality of divided portions so that the outer diameter may be expandable.
  • the outer diameter of the connecting portion 235 may be expanded or reduced together with the gripper 230 .
  • the connection part 235 may correspond to a part of the gripper 230 .
  • a portion C having a changed diameter may be positioned between the gripper 230 and the connecting portion 235 .
  • the gripper 230 may include an anti-hanging portion 232 preventing the stator coil 120 from being jammed.
  • the stator coil 120 includes a plurality of hairpins 121, and the hairpins 121 may have a straight portion B.
  • the anti-jamming part 232 can prevent the hairpin 121 from being caught between adjacent divided parts 231 .
  • the anti-jamming part 232 can prevent the straight part B of the hairpin 121 from being caught between two adjacent divided parts 231 when the outer diameter of the gripper 230 is expanded.
  • the anti-jamming part 232 may be configured so that the distance between the adjacent divided parts 231 does not coincide with the straight part B of the hairpin 121.
  • the distance between the adjacent divided parts 231 not to match the straight part B of the hairpin 121 may be changed.
  • the interval between adjacent divided parts 231 may be a diagonal line rather than a straight line.
  • the anti-jamming part 232 may allow a certain portion of the distance between adjacent divided parts 231 to be moved in parallel.
  • the boundary of the division part 231 may have a first line 233 and a second line 234 formed to be displaced from the first line 233. there is.
  • the second line 234 may be positioned at a position parallel to the first line 233 by a predetermined angle in the circumferential direction. there is. That is, in an exemplary embodiment, the second line 234 may be parallel to the first line 233 .
  • the present invention is not limited thereto, and other shapes may be included to prevent the hairpin 121 from being caught between adjacent divided portions 231 .
  • the second line 234 may perform the role of the anti-jamming part 232 even if it is not parallel to the first line 233 .
  • the gripper 230 may have a first diameter.
  • the connecting portion 235 may have a second diameter.
  • the first diameter may be greater than the second diameter.
  • the gripper 230 is configured to have a larger diameter than the connecting portion 235, so that when the stator coil 120 is supported by the gripper 230, it is possible to prevent the hairpin 121 from being bent.
  • the hairpins 121 are arranged in a cylindrical shape, in order to assemble the stator coil 120 of the hairpin 121, the inner and outer sides of the stator coil 120 are used by using the gripper 230 and the support part 220. It may be advantageous to capture both at the same time.
  • the shape of the stator coil 120 may be deformed.
  • the shape of the stator coil 120 may be deformed when pressure is applied to the bent portion A and the upper portion thereof.
  • the gripper 230 may be formed at a certain height so as not to apply pressure to the bent portion A and its upper side.
  • the bent portion (A) of the hairpin 121 and its upper side are positioned on the side of the connecting portion 235 having a smaller diameter than the gripper 230, and the gripper 230 is positioned on the straight portion (B) of the hairpin 121. It is possible to hold the stator coil 120 by applying pressure. Therefore, the gripper 230 can prevent the stator coil 120 from being deformed while firmly fixing the stator coil 120 .
  • At least one of the support part 220 and the gripper 230 may be movable up and down with respect to the flat table 210 .
  • a first transfer unit 250 mounted on the flat table 210 and moving the support unit 220 in the vertical direction may be provided.
  • a second transfer unit 260 mounted on the flat table 210 to move the gripper 230 in the vertical direction may be provided.
  • FIG. 7 to 9 are assembly step diagrams illustrating a process of assembling a stator coil to a stator core by a stator assembly apparatus according to an embodiment of the present invention.
  • FIGS. 7 to 9 show a process of assembling the stator coil 120 to the stator core 110 by the stator assembly device 200 using cross-sectional views of each component.
  • the gripper 230 may be lowered to be located inside the stator coil 120.
  • stator assembling device 200 may have the same characteristics as described above.
  • a connection portion 235 having a smaller diameter than the gripper 230 may be positioned between the gripper 230 and the flat table 210 .
  • the gripper 230 may include a configuration of the anti-jamming part 232 .
  • an outer end of the stator coil 120 may be positioned between the gripper 230 and the support 220 .
  • the gripper 230 or the entire stator assembly device 200 descends, and the gripper 230 may be inserted into the stator coil 120.
  • the bent portion A of the hairpin 121 and its upper portion may be located on the side of the connection portion 235 having a smaller diameter than the gripper 230 .
  • the diameter of the gripper 230 is increased so that the stator coil 120 positioned between the gripper 230 and the support part 220 may be fixed between the gripper 230 and the support part 220 .
  • the gripper 230 is composed of a plurality of divided parts 231 so that the outer diameter can be expanded as the relative distance between the adjacent divided parts 231 increases.
  • the diameter of the gripper 230 may increase as the distance between the first line 233 and the second line 234 increases.
  • the gripper 230 may include an anti-hanging portion 232 preventing the stator coil 120 from being jammed.
  • the anti-jamming portion 232 can prevent the straight portion B of the hairpin 121 from being caught between two adjacent divided portions 231 .
  • the gripper 230 can prevent the shape of the stator coil 120 from being deformed while firmly fixing the stator coil 120 .
  • the stator core 110 may be positioned below the stator coil 120.
  • stator coil 120 may be inserted into the stator core 110 . That is, the gripper 230 and the support 220 or the entire stator assembly device 200 descends so that the stator coil 120 fixed between the gripper 230 and the support 220 can be inserted into the stator core 110. there is.
  • stator coil 120 can be stably inserted and installed into the stator core 110 without being deformed or caught.
  • stator coil 120 is inserted into the stator core 110 and installed, and the state shown in FIG. 1 can be achieved.
  • the stator coil 120 can be stably inserted into the stator core 110 without being deformed or caught.
  • the gripper 230 firmly fixes the stator coil 120 while stator coil 120 ) can be prevented from being deformed.
  • stator assembling device for assembling a coil of a stator of a motor and a stator core to each other.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Robotics (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

La présente invention se rapporte à un appareil d'assemblage de stator. L'appareil permettant d'assembler un stator par insertion d'une bobine de stator, qui est formée par liaison d'une pluralité de bobines en forme d'épingle à cheveux selon un motif prédéterminé, dans un noyau de stator de forme cylindrique peut comprendre : une table plate ; une partie de support supportée sur la table plate et comportant un espace interne ; un dispositif de préhension en forme de coque cylindrique situé dans l'espace interne de la partie de support, présentant un diamètre extérieur extensible, et présentant un premier diamètre ; et une partie de liaison située entre la table plate et le dispositif de préhension, et présentant un second diamètre qui est plus petit que le premier diamètre.
PCT/KR2021/019466 2021-11-30 2021-12-21 Appareil d'assemblage de stator WO2023101091A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020210169381A KR20230081382A (ko) 2021-11-30 2021-11-30 스테이터 조립 장치
KR10-2021-0169381 2021-11-30

Publications (1)

Publication Number Publication Date
WO2023101091A1 true WO2023101091A1 (fr) 2023-06-08

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ID=86612498

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2021/019466 WO2023101091A1 (fr) 2021-11-30 2021-12-21 Appareil d'assemblage de stator

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KR (1) KR20230081382A (fr)
WO (1) WO2023101091A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7028386B2 (en) * 2002-04-01 2006-04-18 Nissan Motor Co., Ltd. Rotor body and production method thereof
KR20160071374A (ko) * 2013-10-18 2016-06-21 어탑 에스.피.에이. 다이나모 전기 기계의 부품을 제조하기 위한 장치 및 방법
JP2021065056A (ja) * 2019-10-16 2021-04-22 株式会社デンソー ステータの製造装置、および、ステータの製造方法
JP2021078257A (ja) * 2019-11-11 2021-05-20 株式会社デンソー ステータの製造装置、および、ステータの製造方法
US20210249915A1 (en) * 2020-02-10 2021-08-12 Ford Global Technologies, Llc Stator for Electric Machine with Multi-Part Conductor Assembly

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7028386B2 (en) * 2002-04-01 2006-04-18 Nissan Motor Co., Ltd. Rotor body and production method thereof
KR20160071374A (ko) * 2013-10-18 2016-06-21 어탑 에스.피.에이. 다이나모 전기 기계의 부품을 제조하기 위한 장치 및 방법
JP2021065056A (ja) * 2019-10-16 2021-04-22 株式会社デンソー ステータの製造装置、および、ステータの製造方法
JP2021078257A (ja) * 2019-11-11 2021-05-20 株式会社デンソー ステータの製造装置、および、ステータの製造方法
US20210249915A1 (en) * 2020-02-10 2021-08-12 Ford Global Technologies, Llc Stator for Electric Machine with Multi-Part Conductor Assembly

Also Published As

Publication number Publication date
KR20230081382A (ko) 2023-06-07

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