KR20230000322U - Insulation ring of stator with contact plate for electric motor - Google Patents

Insulation ring of stator with contact plate for electric motor Download PDF

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Publication number
KR20230000322U
KR20230000322U KR2020237000002U KR20237000002U KR20230000322U KR 20230000322 U KR20230000322 U KR 20230000322U KR 2020237000002 U KR2020237000002 U KR 2020237000002U KR 20237000002 U KR20237000002 U KR 20237000002U KR 20230000322 U KR20230000322 U KR 20230000322U
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South Korea
Prior art keywords
conductor
ring
insulating ring
stator
contact
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KR2020237000002U
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Korean (ko)
Inventor
클레멘 카프치치
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도멜 디.오.오.
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Application filed by 도멜 디.오.오. filed Critical 도멜 디.오.오.
Publication of KR20230000322U publication Critical patent/KR20230000322U/en

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    • 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
    • H02K3/46—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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/44—Protection against moisture or chemical attack; Windings specially adapted for operation in liquid or gas
    • 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
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
    • 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
    • H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)

Abstract

본 고안은 전기모터용 접촉판이 있는 고정자에 배치되고, 접촉 지지부(6)에 형성된 홈에 배치된 버스 바(7)에 대한 도체(5)의 연결이 상기 접촉판에서 이루어지는 절연 링(1)에 관한 것으로, 절연 링(1)이 낮은 원기둥 형태의 균일한 요소로 형성되고 외주면(1a) 하부에 단턱(2)가 있으며, 고정자에 분사되는 전면 절연체(4)의 단턱(4a)에 상기 단턱(2)가 맞닿고, 상기 링(1)의 내주면(1b) 하부에 도체(5)를 수용하기 위한 치형부들(3)이 이격되어 있으며, 치형부(3)의 수가 도체(5)의 수와 같은 것을 특징한다.The present invention is disposed in a stator with a contact plate for an electric motor, and the connection of the conductor 5 to the bus bar 7 disposed in a groove formed in the contact support 6 is connected to an insulating ring 1 made in the contact plate. In relation to this, the insulation ring 1 is formed as a uniform element in the form of a low column, and there is a step 2 at the bottom of the outer circumferential surface 1a, and the step 4a of the front insulator 4 sprayed to the stator has the step ( 2) is in contact, and teeth 3 for accommodating conductors 5 are spaced apart from each other in the lower part of the inner circumferential surface 1b of the ring 1, and the number of teeth 3 is equal to the number of conductors 5 characterized by the same

Description

전기모터용 접촉판이 있는 고정자의 절연 링Insulation ring of stator with contact plate for electric motor

본 고안은 모터용 접촉판을 갖는 고정자의 절연 링에 관한 것으로, 모터 전체, 즉 회전자가 달린 고정자는 매질에 잠긴다. 바람직하게, 상기 모터는 예를 들어 자동차 산업의 공조 압축기용으로 밀봉된 가스 펌프를 구동하는데 사용된다. 전기모터로는 EC(전자 정류) 전기모터가 바람직하다. 매질은 자동차 산업에서 공조 압축기에 법적으로 사용이 허용된 다양한 냉매일 수 있다. 전체 모터가 매질에 잠겨 있기 때문에, 접촉판의 접점들을 완전히 절연해야 한다. 접촉판은 접촉 지지부와 버스 바(bus bar)로 구성되며, 접촉 지지부의 홈에 도체와의 접점을 형성하도록 버스 바가 배열된다. The present invention relates to an insulating ring of a stator with a contact plate for a motor, in which the entire motor, i.e. the stator with a rotor, is immersed in a medium. Preferably, the motor is used to drive a sealed gas pump, for example for air conditioning compressors in the automotive industry. As the electric motor, an EC (electronically commutated) electric motor is preferable. The medium may be various refrigerants legally permitted for use in air conditioning compressors in the automotive industry. Since the entire motor is immersed in the medium, the contacts on the contact plates must be fully insulated. The contact plate is composed of a contact support portion and a bus bar, and the bus bar is arranged to form a contact with the conductor in the groove of the contact support portion.

도체가 감겨지고 버스 바와 접촉하고 버스 바와 도체가 함께 용접된 후 전면 고정자 절연체와 접촉 지지부 사이의 슬롯의 모터의 접촉면에 특별한 형태의 절연 링이 설치된다. 이 절연 링은 전기모터 제조를 위한 기술 과정에서 생기는 도체와 접촉 지지부 사이의 갭을 밀봉한다. After the conductors are wound and brought into contact with the bus bars and the bus bars and conductors are welded together, an insulating ring of special shape is installed on the contact surface of the motor in the slot between the front stator insulator and the contact support. This insulating ring seals the gap between the conductor and the contact support that arises in the technological process for the manufacture of electric motors.

본 고안은 고정자측의 접촉판 위에 완전히 절연된 접점들을 제공하고, 접촉 지지부에 장착된 버스 바에 대한 도체의 연결이 이 접점에서 이루어지도록 하는 것을 목적으로 한다. 나머지 고정자 권선에는 절연 전선이 있으며 포팅되지 않는다. 비절연 접점, 즉 절연체가 벗겨진 도체 부분에서 생기는 버스바와 도체의 접점들에 2성분 에폭시수지를 덮어, 고정자나 다른 도체부들의 하우징에 대한 누전을 방지한다. The object of the present invention is to provide fully insulated contacts on the contact plate on the stator side, and to make the connection of the conductor to the bus bar mounted on the contact support at these contacts. The remaining stator windings have insulated wires and are not potted. A two-component epoxy resin is covered on non-insulated contacts, that is, contacts between a bus bar and a conductor formed in a conductor portion where the insulator is stripped, to prevent electric leakage to the housing of the stator or other conductor portions.

접촉판이 있는 고정자를 제조하는 기술상, 에폭시 화합물로 덮기 전에는 미절연 접점들이 충분히 견고하지 않기 때문에 미절연 접점 주변 공간을 밀봉하기 위한 추가 조건을 제공하기 위한 구조적 해결책이 필요하다.Due to the technology of manufacturing stators with contact plates, structural solutions are needed to provide additional conditions for sealing the space around the uninsulated contacts, since the uninsulated contacts are not sufficiently rigid before being covered with an epoxy compound.

본 출원인은 모터 전체가 매질에 잠겨있고 접촉판 달린 전기모터에 대해 비절연 접점들의 충분한 견고성을 보장하는 어떤 해결책도 알지 못한다. The Applicant is not aware of any solution that ensures sufficient tightness of the non-insulated contacts for an electric motor with a contact plate in which the entire motor is immersed in a medium.

상기 기술적 문제는 도체를 감고 버스 바에 접촉하고 버스 바와 도체를 용접한 후 전면 고정자 절연체와 접촉 지지부 사이의 슬롯에 삽입되는 특별한 형태의 절연 링에 의해 해결되고, 상기 링은 에폭시 화합물로 덮거나 도포하기 전에 비절연 접점의 충분한 견고성을 제공한다.The above technical problem is solved by a special type of insulating ring inserted into the slot between the front stator insulator and the contact support after winding the conductor and contacting the bus bar and welding the bus bar and the conductor, the ring being covered or coated with an epoxy compound. Provide sufficient rigidity of non-insulated contacts before contacting.

도 1은 절연 링의 평면도;
도 2는 고정자에 설치되는 절연 링의 부분 사시도;
도 3은 고정자에 설치된 절연 링의 부분단면 사시도;
도 4는 절연 링의 치형부의 형상을 보여주는 도면.1 is a plan view of an insulating ring;
Fig. 2 is a partial perspective view of an insulating ring installed on a stator;
Fig. 3 is a partial cross-sectional perspective view of an insulating ring installed on a stator;
Fig. 4 shows the shape of the teeth of the insulating ring;

상당히 낮은 원기둥 형태의 균일한 요소의 절연 링(1)의 외주면(1a)의 하부에 단턱(2)이 있고, 이 단턱은 고정자에 분사되는 전면 절연체(4)의 단턱(4a)과 맞닿는다. 상기 링(1)의 내주면(1b)의 하부에 치형부들(3)이 이격되어 배치되고, 이 치형부 각각에 도체(5)가 수용되며, 치형부(3)의 수는 도체(5)의 수와 같다. 도체(5)를 수용하기 위한 치형부들(3)은 등간격으로 배치되는 것이 좋다.There is a step 2 on the lower part of the outer circumferential surface 1a of the insulating ring 1 of a fairly low columnar uniform element, and this step abuts with the step 4a of the front insulator 4 sprayed to the stator. The teeth 3 are spaced apart from each other on the lower part of the inner circumferential surface 1b of the ring 1, and the conductor 5 is accommodated in each of the teeth, and the number of teeth 3 is the number of conductors 5 equal to number The teeth 3 for accommodating the conductor 5 are preferably arranged at equal intervals.

절연 링(1)이 전면 절연체(4)의 단턱(4a)과 접촉 지지부(6)에 단단히 맞닿도록 단턱(2)의 폭과 높이를 정한다.The width and height of the step 2 are determined so that the insulating ring 1 firmly contacts the step 4a of the front insulator 4 and the contact support 6.

절연 링(1)이 버스 바(7)와 도체(5) 위로 돌출해 2성분 에폭시 수지를 충분히 도포할 수 있도록 절연 링(1)의 높이(H)를 정하고, 절연 링(1)이 전면 절연체(4)의 단턱(4a)과 접촉 지지부(6)의 전면(6a) 사이의 슬롯(8)에 삽입되면 비절연 접점과 커넥터들이 에폭시 수지로 덮여, 접촉판 위의 접점들이 에폭시 수지로 완전히 덮인다.The height (H) of the insulation ring (1) is determined so that the insulation ring (1) protrudes over the bus bar (7) and the conductor (5) so that the two-component epoxy resin can be sufficiently applied, and the insulation ring (1) is the front insulator When inserted into the slot 8 between the step 4a of (4) and the front surface 6a of the contact support 6, the non-insulated contacts and connectors are covered with epoxy resin, and the contacts on the contact plate are completely covered with epoxy resin. all.

절연 링(1)의 외주면(1a)의 상부에 다른 단턱(2a)이 있을 수도 있는데, 전기모터의 추가 공간제약으로 인해 필요할 때 이 단턱을 제공한다.There may also be another step 2a above the outer circumferential surface 1a of the insulating ring 1, which is provided when necessary due to the additional space constraints of the electric motor.

치형부(3)는 절연 링(1)의 내주면(1b)에서 중심을 향해 반경방향으로 돌출한 평평한 몸체로 형성되고, 치형부가 있는 절연 링 부분에서 도체(5)와 접촉 지지부(6) 사이의 갭(9)을 절연 링(1)의 폭(D)이 완전히 밀봉하도록 치형부(3)의 높이를 정한다. 절연 링(1)의 단턱(2)이 전면 절연체(4)의 단턱(4a)과 맞닿고, 이때 전면 절연체(4)의 단턱(4a)과 접촉 지지부(6)의 전면(6a) 사이의 슬롯(8)의 표면에 링의 바닥면(1c)이 맞닿으면서 도체(5)를 따라 갭(9)을 밀봉한다.The tooth portion 3 is formed as a flat body protruding radially from the inner circumferential surface 1b of the insulation ring 1 toward the center, and a gap between the conductor 5 and the contact support portion 6 is formed in the portion of the insulation ring where the tooth portion is located. The height of the teeth 3 is such that the width D of the insulating ring 1 completely seals the gap 9 . The step 2 of the insulating ring 1 abuts the step 4a of the front insulator 4, and at this time, the slot between the step 4a of the front insulator 4 and the front face 6a of the contact support 6 The gap 9 is sealed along the conductor 5 while the bottom surface 1c of the ring abuts against the surface of (8).

절연 링(1)의 내주면(1b)에서 링(1)의 중심을 향한 방향으로 볼 때 도체(5)를 수용하는 치형부(3)의 측면은 경사면(3a)이고 컷아웃(3b)까지 이어진다.When viewed from the inner circumferential surface 1b of the insulating ring 1 in the direction toward the center of the ring 1, the side of the tooth 3 receiving the conductor 5 is an inclined surface 3a and extends to the cutout 3b. .

도체(5)가 접촉 지지부(6)의 전면(6a)에서 약간 떨어졌을 때 섹션(3c)이 전면(6a)에서 도체(5)를 따라 갭(9)을 더 밀봉하고 전면(6a)과 도체(5) 사이의 슬롯(8) 부분에 맞닿도록 컷아웃(3b)이 섹션(3c)까지 이어질 수도 있다.When the conductor 5 is slightly away from the front face 6a of the contact support 6, the section 3c further seals the gap 9 along the conductor 5 at the front face 6a and the front face 6a and the conductor ( 5), the cutout 3b may extend to the section 3c so as to abut against the portion of the slot 8 between them.

경사면(3a)의 기울기(α)는 바람직하게는 30 내지 40도이고, 절연 링(1)이 설치될 때 도체(5)가 경사면(3a)를 따라 원하는 위치인 컷아웃(3b) 안으로 미끄러질 수 있도록 정한다.The inclination α of the inclined surface 3a is preferably 30 to 40 degrees, and the conductor 5 can slide along the inclined surface 3a into the desired position cutout 3b when the insulating ring 1 is installed. decide so that

컷아웃(3b)의 치수는 도체(5)의 치수에 맞게, 도체(5)가 컷아웃(3b)에 고정되도록 한다. 컷아웃(3b)이 반원형이고, 컷아웃(3b)의 반경이 도체(5)의 반경과 같은 것이 좋다.The dimensions of the cutout 3b match the dimensions of the conductor 5, so that the conductor 5 is secured to the cutout 3b. It is preferable that the cutout 3b is semi-circular and the radius of the cutout 3b is the same as the radius of the conductor 5.

고정자를 제조할 때, 즉 도체들(5)을 감고 도체(5)가 버스 바(7)와 접촉하고 버스 바(7)와 도체(5)가 용접된 후, 절연 링(1)이 고정자에 분무된 전면 절연체(4)의 단턱(4a)과 접촉 지지부(6)의 전면(6a) 사이의 슬롯(8)에 삽입되어, 각 치형부(3)가 2개의 인접 도체들(5) 사이의 중간에 위치한다. 절연 링(1)은 슬롯(8)에 삽입된 후 경사면(3a) 방향으로 회전하여, 도체(5)가 경사면(3a)을 따라 섹션(3b)안으로 미끄러진다. 모든 도체(5)가 각각 자체 컷아웃(3b)에 올바르게 위치하고 도체(5)를 따라 갭(9)을 밀봉하도록 절연 링(1)의 형상을 정한다. 이후, 절연 링(1)이 삽입된 슬롯(8)에 2성분 에폭시 수지를 붓는다. 절연 링(1)의 높이(H)는 비절연 접점들과 커넥터들을 밀봉하는데 사용되는 2성분 에폭시 수지의 도포 높이를 결정하기도 한다.When manufacturing the stator, i.e. after the conductors 5 are wound and the conductors 5 are in contact with the bus bar 7 and the bus bar 7 and the conductor 5 are welded, the insulating ring 1 is attached to the stator. Inserted into the slot (8) between the step (4a) of the sprayed front insulator (4) and the front surface (6a) of the contact support (6), each tooth (3) is placed between two adjacent conductors (5). located in the middle After being inserted into the slot 8, the insulating ring 1 rotates in the direction of the inclined surface 3a so that the conductor 5 slides along the inclined surface 3a into the section 3b. Insulation ring 1 is shaped so that all conductors 5 are correctly positioned in their respective cutouts 3b and seal gaps 9 along conductors 5 . Then, two-component epoxy resin is poured into the slot 8 where the insulating ring 1 is inserted. The height H of the insulating ring 1 also determines the application height of the two-component epoxy resin used to seal the non-insulated contacts and connectors.

외주면을 갖는 접촉 지지부(6)가 전면 절연체(4)의 단턱(4a)의 내주면에 단단히 맞닿도록 접촉판 달린 고정자를 형성하는 것이 보통이다. 고정자의 제조과정중에 맞대기가 불량할 경우에도, 절연 링이 구조적으로 슬롯을 밀봉할 수 있다.It is common to form a stator with a contact plate so that the contact support portion 6 having an outer circumferential surface firmly abuts against the inner circumferential surface of the step 4a of the front insulator 4. Even if the butt is bad during manufacture of the stator, the insulating ring can structurally seal the slot.

Claims (8)

전기모터용 접촉판이 있는 고정자에 배치되고, 접촉 지지부(6)에 형성된 홈에 배치된 버스 바(7)에 대한 도체(5)의 연결이 상기 접촉판에서 이루어지는 절연 링(1)에 있어서:
상기 절연 링(1)이 낮은 원기둥 형태의 균일한 요소로 형성되고 외주면(1a) 하부에 단턱(2)가 있으며, 고정자에 분사되는 전면 절연체(4)의 단턱(4a)에 상기 단턱(2)가 맞닿고, 상기 링(1)의 내주면(1b) 하부에 도체(5)를 수용하기 위한 치형부들(3)이 이격되어 있으며, 치형부(3)의 수가 도체(5)의 수와 같은 것을 특징으로 하는 절연 링.In an insulating ring (1) arranged on a stator with a contact plate for an electric motor, the connection of a conductor (5) to a bus bar (7) arranged in a groove formed in a contact support (6) is made in said contact plate:
The insulating ring 1 is formed as a uniform element in the form of a low column, and has a step 2 on the lower portion of the outer circumferential surface 1a, and the step 2 on the step 4a of the front insulator 4 sprayed to the stator. is in contact, and teeth 3 for accommodating conductors 5 are spaced apart from each other on the lower part of the inner circumferential surface 1b of the ring 1, and the number of teeth 3 is the same as the number of conductors 5. Characterized by an insulating ring. 제1항에 있어서, 상기 치형부(3)가 절연 링(1)의 내주면(1b)에서 중심을 향해 반경 방향으로 돌출하는 편평한 몸체로 형성되고, 치형부가 있는 부분의 절연 링(1)의 폭이 도체(5)와 접촉 지지부(6) 사이의 갭(9)을 완전히 밀봉하도록 치형부(3)의 높이(L)가 정해지는 것을 특징으로 하는 절연 링.The method according to claim 1, wherein the toothed portion (3) is formed as a flat body protruding radially from the inner peripheral surface (1b) of the insulating ring (1) toward the center, and the width of the insulating ring (1) at the portion where the toothed portion is present. Insulation ring, characterized in that the height (L) of the teeth (3) is determined so as to completely seal the gap (9) between the conductor (5) and the contact support (6). 제1항 또는 제2항에 있어서, 상기 절연 링(1)의 내주면(1b)에서 중심을 향해 보았을 때 도체(5)를 수용하는 치형부(3)의 측면이 경사면(3a)으로 형성되고, 이 경사면이 컷아웃(3b)까지 이어지는 것을 특징으로 하는 절연 링.The method according to claim 1 or 2, wherein the side surface of the tooth portion (3) accommodating the conductor (5) is formed as an inclined surface (3a) when viewed from the inner peripheral surface (1b) of the insulating ring (1) toward the center, Insulation ring, characterized in that this slope extends to the cutout (3b). 제1항 내지 제3항 중 어느 한 항에 있어서, 경사면(3a)의 기울기(α)가 30 내지 40도인 것을 특징으로 하는 절연 링.The insulating ring according to any one of claims 1 to 3, characterized in that the inclination (α) of the inclined surface (3a) is 30 to 40 degrees. 제1항 내지 제4항 중 어느 한 항에 있어서, 도체(5)를 컷아웃(3b)에 고정할 수 있도록 각각의 경우에 도체(5)의 치수에 맞게 컷아웃(3b)의 치수가 정해지는 것을 특징으로 하는 절연 링. 5. The cutout (3b) according to any one of claims 1 to 4, in which the dimensions of the conductor (5) are in each case matched to the dimensions of the conductor (5) so that the conductor (5) can be clamped in the cutout (3b). Insulation ring, characterized in that it loses. 제1항 내지 제5항 중 어느 한 항에 있어서, 상기 컷아웃(3b)이 반원형이고, 반원형 컷아웃(3b)의 반경이 도체의 반경(5)과 같은 것을 특징으로 하는 절연 링. 6. Insulation ring according to one of claims 1 to 5, characterized in that the cut-out (3b) is semi-circular and the radius of the semi-circular cut-out (3b) is equal to the radius (5) of the conductor. 제1항 내지 제6항 중 어느 한 항에 있어서, 절연 링(1)이 전면 절연체(4)의 단턱(4a)과 접촉 지지부(6)에 단단히 맞닿도록 상기 단턱(2)의 폭과 높이가 정해지는 것을 특징으로 하는 절연 링.The width and height of the step (2) according to any one of claims 1 to 6, so that the insulating ring (1) firmly abuts the step (4a) and the contact support (6) of the front insulator (4). Insulation ring, characterized in that determined. 제1항 내지 제7항 중 어느 한 항에 있어서, 상기 절연 링(1)이 버스 바(7)와 도체(5) 위로 돌출해 2성분 에폭시 수지를 도포할 수 있도록 절연 링(1)의 높이(H)가 정해지고, 전면 절연체(4)의 단턱(4a)과 접촉 지지부(6)의 전면(6a) 사이의 슬롯(8)에 절연 링(1)이 삽입되면 비절연 접점들과 커넥터들이 상기 에폭시 수지로 덮이는 것을 특징으로 하는 절연 링.8. The height of the insulating ring (1) according to any one of claims 1 to 7, such that the insulating ring (1) protrudes above the bus bar (7) and the conductor (5) so that the two-component epoxy resin can be applied. When (H) is determined and the insulating ring 1 is inserted into the slot 8 between the step 4a of the front insulator 4 and the front surface 6a of the contact support 6, the non-insulated contacts and connectors Insulation ring, characterized in that covered with the epoxy resin.
KR2020237000002U 2020-06-08 2021-05-26 Insulation ring of stator with contact plate for electric motor KR20230000322U (en)

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SIP-202000100 2020-06-08
SI202000100A SI26024A (en) 2020-06-08 2020-06-08 Insulation ring for stators with contact plate for electric motors
PCT/SI2021/050011 WO2021251910A1 (en) 2020-06-08 2021-05-26 Insulating ring in stators with a contact plate for electric motors

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Publication number Priority date Publication date Assignee Title
WO2014011783A1 (en) * 2012-07-11 2014-01-16 Remy Technologies, Llc Interlocking coil isolators for resin retention in a segmented stator assembly
DE102013113363A1 (en) * 2013-12-03 2015-06-03 Pierburg Gmbh Stator for an electronically commutated DC motor

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