WO2024058564A1 - 모터 - Google Patents
모터 Download PDFInfo
- Publication number
- WO2024058564A1 WO2024058564A1 PCT/KR2023/013791 KR2023013791W WO2024058564A1 WO 2024058564 A1 WO2024058564 A1 WO 2024058564A1 KR 2023013791 W KR2023013791 W KR 2023013791W WO 2024058564 A1 WO2024058564 A1 WO 2024058564A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bus bar
- coil
- connection end
- motor
- stator
- Prior art date
- Legal status (The legal status 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 status listed.)
- Ceased
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/52—Fastening salient pole windings or connections thereto
- H02K3/521—Fastening salient pole windings or connections thereto applicable to stators only
- H02K3/522—Fastening salient pole windings or connections thereto applicable to stators only for generally annular cores with salient poles
-
- 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
- H02K3/28—Layout of windings or of connections between windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/52—Fastening salient pole windings or connections thereto
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2203/00—Specific aspects not provided for in the other groups of this subclass relating to the windings
- H02K2203/06—Machines characterised by the wiring leads, i.e. conducting wires for connecting the winding terminations
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2203/00—Specific aspects not provided for in the other groups of this subclass relating to the windings
- H02K2203/09—Machines characterised by wiring elements other than wires, e.g. bus rings, for connecting the winding terminations
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2203/00—Specific aspects not provided for in the other groups of this subclass relating to the windings
- H02K2203/12—Machines characterised by the bobbins for supporting the windings
Definitions
- the embodiment relates to a motor.
- the rotor of a motor rotates due to electromagnetic interaction between the rotor and the stator. At this time, the shaft connected to the rotor also rotates to generate rotational driving force.
- the rotor and stator are housed in a housing.
- the housing is a cylindrical member with a hollow interior. One side of the housing is open.
- the stator may include a stator core and a coil wound around the stator core.
- the coil may be connected to a busbar.
- the busbar is supported by a busbar holder.
- the bus bar holder may be a mold surrounding the bus bar.
- the coils can be wound in a dual, circuit-separated manner. If one coil is disconnected, the other coil is used. Based on the circumferential direction of the stator, one coil is wound on one side and another coil is wound on the other side. Specifically, when viewed in the axial direction, one of the two circuitically separated coils occupies half of the stator in the circumferential direction, and the other occupies the other half of the stator.
- the motor of this configuration has a problem in that, when operating, a magnetic field is formed in only half of the stator in the circumferential direction, and the motor operates with an unbalanced magnetic field.
- the embodiment is intended to solve the above-described problem, and the problem is to provide a motor that can form an equal magnetic field while the coil is wound in a dual circuit-separated manner.
- the embodiment includes a shaft, a rotor coupled to the shaft, and a stator disposed to correspond to the rotor, and the stator includes a stator core, an insulator coupled to the stator core, and a coil disposed on the insulator.
- the coil includes a first coil and a second coil that are separated in circuitry
- the insulator includes a first area where the first coil is placed and a second area where the second coil is placed
- a motor including a first bus bar electrically connected to the first coil and a second bus bar electrically connected to the second coil can be provided.
- the first bus bar and the second bus bar may be supported by the same bus bar holder.
- the first bus bar and the second bus bar may be stacked in the axial direction.
- the first bus bar includes a 1-1 bus bar body, a 1-2 connection end that protrudes from the 1-1 bus bar body and is connected to the first coil, and a 1-2 connection end that protrudes from the 1-1 bus bar body. and includes a 1-3 connection terminal connected to an external power source, wherein the second bus bar includes a 2-1 bus bar body, and a second bus bar protruding from the 2-1 body and connected to the second coil. It includes 2 connection ends and a 2-3 connection end that protrudes from the 2-1 body and is connected to an external power source, and a contact area between the first coil and the 1-2 connection end is between the second coil and the It may be arranged so as not to overlap in the axial direction with the contact area of the 2-2 connection end.
- the first coil may be disposed radially outer than the second coil, and the 1-3 connection end may be disposed radially outside of the 2-3 connection end.
- the 1-3 connection end is located outside the outermost side of the 1-2 connection end in the radial direction, and the 2-3 connection end is located inside the outermost side of the 2-2 connection end in the radial direction. can be located
- the 1-1 bus bar body and the 2-1 bus bar body may be arranged to overlap in the axial direction.
- the contact area between the first coil and the 1-2 connection end may be arranged on the same circumference with respect to the center of the bus bar.
- the first bus bar and the second bus bar are supported by the same bus bar holder, and at least one of the plurality of first to third connection ends may be arranged to overlap the bus bar holder in the axial direction.
- the insulator may include a guide that partitions the first area and the second area.
- the first bus bar and the second bus bar are stacked in the axial direction, so there is an advantage in that the first coil and the second coil wound on one tooth of the stator can be easily connected.
- the contact area of the first coil and the first bus bar and the contact area of the second coil and the second bus bar are arranged so as not to overlap, so that the first coil and the second coil wound on one tooth of the stator It has the advantage of being easily connected.
- FIG. 1 is a diagram showing a motor according to an embodiment
- Figure 2 is a view of the stator shown in Figure 1 viewed from the axial direction;
- Figure 3 is a diagram showing a state in which the first coil is wound on the stator
- Figure 4 is a diagram showing a state in which the second coil is wound on the stator
- Figure 5 is a perspective view showing an insulator
- FIG. 6 is a diagram showing a first bus bar, a second bus bar, and a bus bar module
- FIG. 7 is a diagram showing a first bus bar
- Figure 8 is a diagram showing a second bus bar
- Figure 10 is a view of the first bus bar and the second bus bar viewed from the axial direction;
- Figure 11 is a view of the first bus bar, the second bus bar, and the bus bar mold viewed from the axial direction.
- the direction parallel to the longitudinal direction (up and down) of the shaft is called the axial direction
- the direction perpendicular to the axial direction around the shaft is called the radial direction
- the direction along a circle with a radial radius around the shaft is called circumference. It is called direction.
- FIG. 1 is a diagram showing a motor according to an embodiment.
- a motor may include a shaft 100, a rotor 200, a stator 300, and a housing 700.
- the inside refers to the direction from the housing 700 toward the shaft 100
- the center of the motor refers to the direction opposite to the inside, which is the direction from the shaft 100 to the housing 700.
- the radial direction below is based on the axial center of the shaft 100.
- Shaft 100 may be coupled to rotor 200.
- the rotor 200 rotates and the shaft 100 rotates in conjunction with this.
- the rotor 200 rotates through electrical interaction with the stator 300.
- the rotor 200 may be placed inside the stator 300.
- the stator 300 is disposed outside the rotor 200.
- the stator 300 may include a stator core 310, an insulator 320 mounted on the stator core 310, and a coil 330.
- the coil 330 may be wound around the insulator 320.
- the insulator 320 is disposed between the coil 330 and the stator core 310 and serves to electrically insulate the stator core 310 and the coil 330 from each other.
- the coil 330 causes electrical interaction with the magnet of the rotor 200.
- a stator 300 and a rotor 200 are disposed inside the housing 700.
- FIG. 2 is a view of the stator 300 shown in FIG. 1 viewed from the axial direction
- FIG. 3 is a view showing a state in which the first coil 330A is wound around the stator 300
- FIG. 4 is a view of the stator 300.
- ) is a diagram showing a state in which the second coil 330B is wound
- Figure 5 is a perspective view showing the insulator 320.
- the stator 300 includes a first coil 330A and a second coil 330B.
- the first coil 330A and the second coil 330B are separated in circuitry, and if one of the first coil 330A and the second coil 330B is shorted, the other coil can be used.
- the insulator 320 is disposed on each tooth of the stator core 310. And the first coil 330A and the second coil 330B are wound together on the insulator 320. The first coil 330A is wound to be located radially outward from the second coil 330B. In all insulators 320 disposed in the stator 300, the first coil 330A may be wound to be located outside the second coil 330B.
- the insulator 320 includes an insulator body 322 around which the coil 330 is wound, an outer guide 323 disposed on the outside of the insulator body 322, and an inner guide 324 disposed on the inside of the insulator body 322. ) may include.
- the insulator 320 includes a first area A1 where the first coil 330A is wound and a second area A2 where the second coil 330B is wound.
- the first area A1 and the second area A2 may be divided by a guide 321.
- the guide 321 protrudes from the insulator body 322 in contact with the coil 330 and spatially divides the space where the first coil 330A is wound and the space where the second coil 330B is wound. In the radial direction, the guide 321 is located between the inner guide 323 and the outer guide 324.
- a first coil 330A may be wound in the first area A1.
- a second coil 330B may be wound in the second area A2.
- Figure 6 is a diagram showing the first bus bar 400, the second bus bar 500, and the bus bar holder 600
- Figure 7 is a diagram showing the first bus bar 400
- Figure 8 is a diagram showing the first bus bar 400. This is a diagram showing the second bus bar 500.
- the first bus bar 400 and the second bus bar 500 may be fixed by one bus bar holder 600.
- the first bus bar 400 and the second bus bar 500 may be arranged to be stacked in the axial direction.
- the bus bar holder 600 is formed in an annular shape, and may be formed in a square cross-section with an axial length longer than the radial width.
- the first bus bar 400 is located lower than the second bus bar 500.
- the first bus bar 400 may be composed of three bus bars of U phase, V phase, and W phase.
- This first bus bar 400 may include a 1-1 bus bar body 410, a 1-2 connection end 420, and a 1-3 connection end 430.
- the 1-1 bus bar body 410 is an arc-shaped member including a curved surface.
- the 1-1 bus bar body 410 may be arranged in an upright position. That is, the 1-1 bus bar body 410 may have a square cross-section with an axial length longer than the radial width.
- the 1-2 connection end 420 protrudes from the 1-1 bus bar body 410.
- the 1-2 connection end 420 may be formed by bending the 1-1 bus bar body 410 outward from the top.
- a plurality of first-second connection ends 420 may be arranged at regular intervals.
- the 1-2 connection terminal 420 is electrically connected to the first coil 330A.
- the end of the 1-2 connection end 420 may be bent into a hook shape and may be formed to surround the first coil 330A.
- the 1-3 connection end 430 protrudes from the 1-1 bus bar body 410.
- the 1-3 connection end 430 may be formed by bending the 1-1 bus bar body 410 outward from the top and then bending upward.
- These first-third connection terminals 430 are electrically connected to an external power source.
- the first to third connection ends 430 of the three first bus bars 400 of the U phase, V phase, and W phase may be located together in one place.
- the second bus bar 500 is located above the first bus bar 400.
- the second bus bar 500 may be composed of three bus bars of U phase, V phase, and W phase.
- This second bus bar 500 may include a 2-1 bus bar body 510, a 2-2 connection end 520, and a 2-3 connection end 530.
- the 2-1 bus bar body 510 is an arc-shaped member including a curved surface.
- the 2-1 bus bar body 510 may be arranged in an upright position. That is, the 2-1 bus bar body 510 may have a square cross-section with an axial length longer than the radial width.
- the 2-2 connection end 520 protrudes from the 2-1 bus bar body 510.
- the 2-2 connection end 520 may be formed by bending the 2-1 bus bar body 510 outward from the top.
- a plurality of 2-2 connection ends 520 may be arranged at regular intervals.
- the 2-2 connection end 520 is electrically connected to the second coil 330B.
- the 2-2 connection end 520 may have an end bent into a hook shape to surround the second coil 330B.
- the 2-3 connection end 530 protrudes from the 2-1 bus bar body 510.
- the 2-3 connection end 530 may be formed by bending the 2-1 bus bar body 510 outward from the top and then bending upward.
- These 2-3 connection terminals 530 are electrically connected to an external power source.
- the 2nd and 3rd connection ends 530 of the three second bus bars 500 of the U phase, V phase, and W phase may be located together in one place.
- the 1-2 connection end 420 and the 2-2 connection end 520 are exposed to the outside of the bus bar holder 600. Additionally, the 1-3 connection end 430 and the 2-3 connection end 530 are exposed to the outside of the bus bar holder 600. The top of the 1-3 connection end 430 and the top of the 2-3 connection end 530 are located higher than the upper surface of the bus bar holder 600.
- FIG. 9 is a side view of the first bus bar 400 and the second bus bar 500
- FIG. 10 is a view of the first bus bar 400 and the second bus bar 500 viewed from the axial direction.
- the first bus bar 400 and the second bus bar 500 are stacked in the axial direction.
- the 1-1 bus bar body 410 and the 2-1 bus bar body 510 are arranged to overlap in the axial direction. Therefore, considering the positions of the first coil (330A) and the second coil (330B) wound together on one tooth of the stator core 310, the position of the 1-2 connection end 420 and the 2-2 The positions of the connection ends 520 must be arranged so that they do not overlap.
- first bus bar 400 and the second bus bar 500 have a contact area C1 between the first coil 330A and the 1-2 connection end 420 connected to the second coil 330B. It may be arranged to be shifted in the circumferential direction so as not to overlap the contact area C1 of the 2-2 connection end 520 in the axial direction.
- the contact area (C1) between the first coil (330A) and the 1-2 connection end (420) and the contact area (C2) between the second coil (330B) and the 2-2 connection end (520) are centered on the axis. It can be placed on the same circumference based on (C).
- first bus bar 400 and the second bus bar 500 are stacked in the axial direction corresponding to the first coil 330A and the second coil 330B, the first coil 330A and the second bus bar 330B 1
- connection of the bus bar 400 and the connection of the second coil 330B and the second bus bar 500 are easy.
- the 1-3 connection end 430 may be placed on one side, and the 2-3 connection end 530 may be placed on the other side, based on the circumferential direction.
- the circumferential angle of the 1-3 connection end 430 and the 2-3 connection end 530 may be greater than 90° and less than 180°.
- the 1-3 connection end 430 may be located outside the outermost side of the 1-2 connection end 420 in the radial direction.
- the 2-3 connection end 530 may be located inside the outermost side of the 2-2 connection end 520 in the radial direction.
- FIG. 11 is a view of the first bus bar 400, the second bus bar 500, and the bus bar holder 600 viewed from the axial direction.
- the 1-3 connection end 430 located innermost among the plurality of 1-3 connection ends 430 may be arranged to overlap the bus bar holder 600 in the axial direction.
- the first-third connection ends 430 are exposed from the upper surface of the bus bar holder 600.
- the first coil 330A is connected to the first bus bar 400
- the second coil 330B is connected to the second bus bar 500
- the first coil 330A and the second coil 330B are evenly distributed along the circumferential direction, which has the advantage of forming a uniform magnetic field while implementing fail-safe.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
Description
Claims (10)
- 샤프트;상기 샤프트에 결합된 로터; 및상기 로터와 대응되게 배치되는 스테이터를 포함하고,상기 스테이터는 스테이터 코어 및 상기 스테이터 코어에 결합된 인슐레이터 및 상기 인슐레이터 상에 배치되는 코일을 포함하고,상기 코일은 회로적으로 분리되는 제1 코일과 제2 코일을 포함하고,상기 인슐레이터는 상기 제1 코일이 배치되는 제1 영역과, 상기 제2 코일이 배치되는 제2 영역을 포함하고,상기 제1 코일과 전기적으로 접속하는 제1 버스바와 상기 제2 코일과 전기적으로 접속하는 제2 버스바를 포함하는 모터.
- 제1 항에 있어서,상기 제1 버스바와 상기 제2 버스바는 동일한 버스바 홀더에 의해 지지되는 모터.
- 제1 항에 있어서,상기 제1 버스바와 상기 제2 버스바는 축방향으로 적층되는 모터.
- 제1 항에 있어서,상기 제1 버스바는 제1-1 버스바 바디와, 상기 제1-1 버스바 바디에서 돌출되어 상기 제1 코일과 연결되는 제1-2 연결단과, 상기 제1-1 버스바 바디에서 돌출되어 외부 전원과 연결되는 제1-3 연결단을 포함하고,상기 제2 버스바는 제2-1 버스바 바디와, 상기 제2-1 바디에서 돌출되어 상기 제2 코일과 연결되는 제2-2 연결단과, 상기 제2-1 바디에서 돌출되어 외부 전원과 연결되는 제2-3 연결단을 포함하고,상기 제1 코일과 상기 제1-2 연결단의 접촉영역은 상기 제2 코일과 상기 제2-2 연결단의 접촉영역과 축방향으로 오버랩되지 않게 배치되는 모터.
- 제4 항에 있어서,상기 제1 코일은 상기 제2 코일보다 반경방향으로 외측에 배치되고,상기 제1-3 연결단은 상기 제2-3 연결단보다 반경방향으로 외측에 배치되는 모터.
- 제4 항에 있어서,상기 제1-3 연결단은 반경방향으로 상기 제1-2 연결단의 최외측보다 외측에 위치하고,상기 제2-3 연결단은 반경방향으로 상기 제2-2 연결단의 최외측보다 내측에 위치하는 모터.
- 제4 항에 있어서,상기 제1-1 버스바 바디와 상기 제2-1 버스바 바디는 축방향으로 오버랩되게 배치되는 모터.
- 제4 항에 있어서,상기 제1 코일과 상기 제1-2 연결단의 접촉영역은 상기 제2 코일과 상기 제2-2 연결단의 접촉영역은 상기 버스바의 중심으로 기준으로 동일한 원주상에 배치되는 모터.
- 제4 항에 있어서,상기 제1 버스바와 상기 제2 버스바는 동일한 버스바 홀더에 의해 지지되고,복수 개의 상기 제1-3 연결단 중 적어도 어느 하나는 상기 버스바 홀더와 축방향으로 오버랩되게 배치되는 모터.
- 제1 항에 있어서,상기 인슐레이터는 상기 제1 영역과 상기 제2 영역을 구획하는 가이드를 포함하는 모터.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202380066311.5A CN119923787A (zh) | 2022-09-14 | 2023-09-14 | 马达 |
| US19/111,730 US20260088677A1 (en) | 2022-09-14 | 2023-09-14 | Motor |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020220115415A KR20240036861A (ko) | 2022-09-14 | 2022-09-14 | 모터 |
| KR10-2022-0115415 | 2022-09-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024058564A1 true WO2024058564A1 (ko) | 2024-03-21 |
Family
ID=90275551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2023/013791 Ceased WO2024058564A1 (ko) | 2022-09-14 | 2023-09-14 | 모터 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20260088677A1 (ko) |
| KR (1) | KR20240036861A (ko) |
| CN (1) | CN119923787A (ko) |
| WO (1) | WO2024058564A1 (ko) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0910152A1 (en) * | 1997-10-16 | 1999-04-21 | Bitron S.p.A. | A stator for electric motors with an electrically insulating co-moulded covering |
| JP2010183727A (ja) * | 2009-02-05 | 2010-08-19 | Fujitsu General Ltd | アキシャルエアギャップ型電動機 |
| JP2011166896A (ja) * | 2010-02-08 | 2011-08-25 | Shinano Kenshi Co Ltd | 電動機 |
| KR20110139434A (ko) * | 2010-06-23 | 2011-12-29 | 주식회사 아모텍 | 더블 스테이터-더블 로터형 모터 및 이를 이용한 세탁기의 직결형 구동 장치 |
| KR101917727B1 (ko) * | 2017-09-29 | 2018-11-13 | 주식회사 만도 | 모터의 버스바어셈블리 |
-
2022
- 2022-09-14 KR KR1020220115415A patent/KR20240036861A/ko active Pending
-
2023
- 2023-09-14 US US19/111,730 patent/US20260088677A1/en active Pending
- 2023-09-14 WO PCT/KR2023/013791 patent/WO2024058564A1/ko not_active Ceased
- 2023-09-14 CN CN202380066311.5A patent/CN119923787A/zh active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0910152A1 (en) * | 1997-10-16 | 1999-04-21 | Bitron S.p.A. | A stator for electric motors with an electrically insulating co-moulded covering |
| JP2010183727A (ja) * | 2009-02-05 | 2010-08-19 | Fujitsu General Ltd | アキシャルエアギャップ型電動機 |
| JP2011166896A (ja) * | 2010-02-08 | 2011-08-25 | Shinano Kenshi Co Ltd | 電動機 |
| KR20110139434A (ko) * | 2010-06-23 | 2011-12-29 | 주식회사 아모텍 | 더블 스테이터-더블 로터형 모터 및 이를 이용한 세탁기의 직결형 구동 장치 |
| KR101917727B1 (ko) * | 2017-09-29 | 2018-11-13 | 주식회사 만도 | 모터의 버스바어셈블리 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN119923787A (zh) | 2025-05-02 |
| KR20240036861A (ko) | 2024-03-21 |
| US20260088677A1 (en) | 2026-03-26 |
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