KR101128360B1 - Divided core for motor st30tor 30nd m30nuf30cturing method thereof - Google Patents

Divided core for motor st30tor 30nd m30nuf30cturing method thereof Download PDF

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KR101128360B1
KR101128360B1 KR1020100139713A KR20100139713A KR101128360B1 KR 101128360 B1 KR101128360 B1 KR 101128360B1 KR 1020100139713 A KR1020100139713 A KR 1020100139713A KR 20100139713 A KR20100139713 A KR 20100139713A KR 101128360 B1 KR101128360 B1 KR 101128360B1
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South Korea
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rare earth
iron piece
iron
ingots
ingot
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KR1020100139713A
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Korean (ko)
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조인수
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(주)창조인프라
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
    • H01F1/047—Alloys characterised by their composition
    • H01F1/053—Alloys characterised by their composition containing rare earth metals
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/02—Details of the magnetic circuit characterised by the magnetic material
    • 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
    • H02K1/14—Stator cores with salient poles
    • 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
    • H02K15/022—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies with salient poles or claw-shaped poles

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

PURPOSE: A division core for a motor stator which uses rare-earth metal and a manufacturing method thereof are provided to arrange a concave groove on the lower part of a lower rare-earth lump and the upper part of an upper rare-earth lump, thereby reducing the weight of a motor by reducing the thickness of a teeth part. CONSTITUTION: An upper rare-earth lump(110) is laminated on the upper part of an iron piece(120). A concave groove is formed on the upper part of the upper rare-earth lump. A lower rare-earth lump(130) is laminated on the lower part of the iron piece. The concave groove is formed on the lower part of the lower rare-earth lump. The inner surfaces of a yoke part and a teeth portion are coated by plastic(140).

Description

희토류계 금속을 사용하는 모터고정자용 분할코어 및 그의 제조방법{DIVIDED CORE FOR MOTOR ST30TOR 30ND M30NUF30CTURING METHOD THEREOF} Split core for motor stator using rare earth metal and its manufacturing method {DIVIDED CORE FOR MOTOR ST30TOR 30ND M30NUF30CTURING METHOD THEREOF}

본 발명은 모터고정자용 분할코어 및 그의 제조방법에 관한 것으로, 더욱 상세하게는 희토류계 금속을 사용함으로써 철손실을 최소화하고 효율을 증대시키며, 공정 개선 및 중량 감소, 동선 절감 등을 가능하게 하는 희토류계 금속을 사용하는 모터고정자용 분할코어 및 그의 제조방법에 관한 것이다.
The present invention relates to a split core for a motor stator and a method for manufacturing the same. More particularly, the use of rare earth metals minimizes iron loss and increases efficiency, and improves process weight, reduces weight, reduces copper wire, and the like. A split core for a motor stator using a system metal and a method of manufacturing the same.

일반적으로 모터는 분할코어에 집중적으로 코일을 감고 원주 형상으로 배치하고 전력을 인가함으로써 분할코어에 자력을 발생시키고 상기 자력의 힘에 의해 로우터를 회전시킴으로써 회전력을 얻는 구조이다.In general, a motor is a structure in which a coil is intensively wound around a split core, disposed in a circumferential shape, and a power is applied to generate a magnetic force on the split core, and obtain a rotational force by rotating the rotor by the magnetic force.

상기 분할코어(1)는 평면에서 볼 때에 T자 형상을 갖는데, 반경 방향으로 연장되는 티스부(30)와, 상기 티스부와 비교하여 원주 방향으로 넓은 요크부(20)로 이루어진다.The split core 1 has a T-shape in plan view, and includes a tooth portion 30 extending in the radial direction and a yoke portion 20 wider in the circumferential direction than the tooth portion.

따라서 상기 소정 개수의 분할코어를 원주 형상으로 배치함으로써 요크부가 서로 접하여 대략 원형의 모터용 코어가 형성된다. 이때 각 티스부는 중앙을 향해 돌출되되 서로 접하지는 않는 구조이다. Thus, by arranging the predetermined number of split cores in a circumferential shape, the yoke portions are in contact with each other to form a substantially circular motor core. At this time, each tooth portion protrudes toward the center but does not touch each other.

그런데 상기와 같은 종래의 분할코어(1)는 모두 철손실을 줄이기 위해 다수의 얇은 철편(10)을 적층하여 사용하고 있으며, 코일을 형성하기 위해 티스부(30)에 감게되는 동선(銅線)과 철편(10)과의 절연을 위해 얇은 플라스틱 박막, 즉 상부커버(11)와 측면커버(12), 하부커버(13)를 형성하게 된다.
However, the conventional split core 1 is used by stacking a plurality of thin iron pieces 10 in order to reduce iron loss, and the copper wire wound around the tooth part 30 to form a coil. To form a thin plastic thin film, that is, the upper cover 11, the side cover 12, the lower cover 13 to insulate the iron piece 10.

그런데 상기와 같은 종래의 분할코어는 비용을 줄이기 위해 가격이 저렴한 철을 사용하고 있고 이로 인한 철손실을 피하기 위해 다수의 얇은 철편(鐵片)을 적층하여 사용하고 있긴 하나 철편은 성형할 수 있는 두께가 한정될 수밖에 없는 것이어서 일정 정도의 철손실은 불가피하게 되고, 이로 인해 모터의 효율은 떨어질 수밖에 없는 단점을 갖게 된다.However, the conventional split core as described above uses inexpensive iron in order to reduce costs, and in order to avoid the iron loss caused by this, a plurality of thin iron pieces are laminated to be used, but the iron pieces can be formed in a thickness. Since only a limited amount of iron loss is inevitable, which leads to a disadvantage that the efficiency of the motor is inevitably reduced.

또 종래의 분할코어는 모두 철편으로만 이루어지는 것이어서 티스부의 두께, 즉 직경을 줄일 수 없는 구조이며, 이로 인해 분할코어의 무게를 줄일 수 없으며, 또한 티스부에 감기는 코일의 길이를 줄일 수 없게 되어 동선을 절감할 수 없는 단점을 갖는다.In addition, since the conventional split cores are all made of iron pieces, the thickness of the tooth part, that is, the diameter cannot be reduced, and thus, the weight of the split core cannot be reduced, and the length of the coil wound around the tooth part cannot be reduced. There is a disadvantage that can not reduce the copper wire.

또한 종래의 분할코어(1)는 철편(10)과 상부커버(11), 측면커버(12), 하부커버(13)가 각각 분리된 구조여서 이들의 결합을 위해서는 별도의 조립공정을 필요로 하게 되는데 이로 인해 모터의 제작에 있어 상당한 인적, 시간적 낭비를 수반하게 된다.
In addition, the conventional split core 1 has a structure in which the iron piece 10, the upper cover 11, the side cover 12, and the lower cover 13 are separated from each other, so that a separate assembly process is required for the combination thereof. This entails considerable human and time wastage in the manufacture of the motor.

이를 위해 본 발명은 분할코어의 중간부에는 저렴한 가격의 철편을 그대로 사용하되, 상기 철편의 상부와 하부에 희토류계 금속을 재질로 하는 희토류 괴(塊)를 적층하고 상기 철편과 희토류 괴의 표면 중 티스부와 요크부의 안쪽면을 모두 절연체, 즉 플라스틱으로 코팅하도록 구성됨을 특징으로 한다.To this end, the present invention is to use a low-cost iron piece as it is in the middle portion of the split core, the rare earth ingot made of a rare earth metal (塊) laminated on the upper and lower portions of the iron piece and the surface of the iron piece and rare earth ingot Both the inner surface of the tooth portion and the yoke portion is characterized by being configured to coat with an insulator, that is, plastic.

또한 본 발명은 상기 상부의 희토류 괴에는 상부에 오목홈이 형성되도록 하고, 하부의 희토류 괴에는 하부에 오목홈이 형성되도록 구성됨을 특징으로 한다.In another aspect, the present invention is characterized in that the concave groove is formed in the upper portion of the rare earth ingot, the concave groove is formed in the lower portion of the rare earth ingot.

또 본 발명 제조방법은 철편을 중앙에 두고 상기 철편의 상부와 하부에 희토류계 금속을 재질로 하는 희토류 괴(塊)를 적층하는 단계와, 상기 적층된 철편과 희토류 괴를 합성수지 사출금형에 내부에 배치하는 단계와, 상기 사출금형 내부에 배치된 철편과 희토류 괴의 표면 중 티스부와 요크부의 안쪽면에만 용융된 플라스틱을 사출하는 단계와, 상기 사출된 플라스틱을 냉각하는 단계와, 상기 사출된 플라스틱에 의해 티스부와 요크부의 안쪽면이 절연 코팅된 철편과 희토류 괴를 금형으로 부터 분리하는 단계로 이루어진다.In another aspect, the present invention provides a method of laminating a rare earth ingot made of a rare earth metal on the upper and lower portions of the iron piece with the iron piece in the center, and the laminated iron piece and the rare earth ingot in a synthetic resin injection mold. Disposing the molten plastic on only the inner surfaces of the teeth and the yoke of the surfaces of the iron pieces and the rare earth ingots disposed in the injection mold; and cooling the injected plastic. The inner surface of the teeth and the yoke portion by the insulating coating consists of a step of separating the iron piece and rare earth ingot from the mold.

이처럼 본 발명은 분할코어의 상부와 하부에는 희토류 괴를 적층함으로서 철손실이 없는 희토류계 금속의 특성에 의해 최대한의 효율을 증대시킬 수 있으며, 중간부에는 철편을 그대로 사용함으로써 비용을 절감할 수 있도록 하였다.Thus, the present invention can increase the maximum efficiency by the characteristics of the rare earth metal without iron loss by stacking the rare earth ingots on the upper and lower portions of the split core, so as to reduce the cost by using the iron piece in the middle part as it is It was.

특히 상부 희토류 괴의 상부와 하부 희토류 괴의 하부에 오목홈이 형성되도록 함으로써 티스부의 두께, 즉 직경을 줄임으로써 분할코어의 무게를 줄일 수 있게 되고 이로 인해 모터의 중량 감소와 티스부에 감기는 코일의 길이를 줄일 수 있게 되어 동선의 절감 효과를 가지게 된다.In particular, concave grooves are formed in the upper part of the upper rare earth ingot and the lower part of the lower rare earth ingot, thereby reducing the weight of the split core by reducing the thickness, that is, the diameter of the tooth part, thereby reducing the weight of the motor and the coil wound around the tooth part. By reducing the length of the copper wire will have the effect of reducing.

또한 본 발명은 철편과 희토류 괴를 동시에 인서트 사출함으로써 티스부와 요크부의 안쪽면을 플라스틱으로 절연 코팅할 수 있게 되어 별도의 조립공정을 필요로 하지 않며, 이로 인해 모터의 제작에 있어 상당한 인적, 시간적 낭비를 방지할 수 있는 매우 유용한 발명인 것이다.
In addition, the present invention can insert and inject the iron and rare earth ingots at the same time to be insulated coating the inner surface of the teeth and yoke parts with plastic, and does not require a separate assembly process, which is a significant human and time in the production of the motor It is a very useful invention that can prevent waste.

도 1은 종래 모터고정자용 분할코어 및 그의 제조방법를 보이기 위한 참고사시도.
도 2 내지 도 4는 본 발명 모터고정자용 분할코어 및 그의 제조방법의 제조공정을 보이기 위한 참고단면도.
도 5는 본 발명 모터고정자용 분할코어 및 그의 제조방법의 구조를 보이기 위한 종단면도.1 is a reference perspective view for showing a conventional splitting core for a motor stator and a method of manufacturing the same.
2 to 4 is a cross-sectional reference for showing a manufacturing process of the present invention motor stator split core and its manufacturing method.
Figure 5 is a longitudinal sectional view for showing the structure of the present invention motor stator split core and its manufacturing method.

이하 첨부된 도면에 의해 본 발명을 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

본 발명 분할코어(100)는 철편(120)과, 상기 철편(120)의 상부에는 상부 희토류 괴(110)를 적층하고, 철편(120)의 하부에는 하부 희토류 괴(130)를 적층하되, 상기 철편(120)과 희토류 괴(110,130)의 표면 중 티스부와 요크부의 안쪽면이 플라스틱(140)에 의해 코팅된 구성을 갖는다.In the present invention, the split core 100 stacks the iron piece 120 and the upper rare earth ingot 110 on the upper part of the iron piece 120, and the lower rare earth ingot 130 on the lower part of the iron piece 120. The inner surface of the tooth part and the yoke part of the surfaces of the iron piece 120 and the rare earth ingots 110 and 130 have a configuration in which the plastic 140 is coated.

상기 희토류 괴(110,130)는 희토류계 금속을 재질로 하는 덩어리를 일컫으며, 철편과는 달리 철손실이 발생하지 않는다.The rare earth ingots 110 and 130 refer to lumps made of rare earth metals, and unlike iron pieces, iron loss does not occur.

또한 상기 희토류 괴(110,130)는 괴(塊)상이어서 성형이 용이하여 오목홈(111,131)을 형성할 수도 있다.In addition, the rare earth ingots (110, 130) is in the shape of a lump (塊) is easy to form the concave grooves (111,131) may be formed.

상기 오목홈(111,131)은 티스부의 직경을 줄이기 위한 수단으로, 상부 희토류 괴(110)에는 상부에 오목홈(111)이 형성되도록 하고, 하부 희토류 괴(130)에는 하부에 오목홈(131)이 형성되도록 한다.The concave grooves 111 and 131 are means for reducing the diameter of the tooth part. The concave grooves 111 are formed in the upper portion of the upper rare earth ingot 110, and the concave grooves 131 are formed in the lower rare earth ingot 130. To form.

이처럼 상기 오목홈(111,131) 구성에 의해 티스부의 두께, 즉 직경은 줄어들게 되고 이로 인해 자력을 발생시키기 위한 코일을 티스부에 감을 때 작아진 직경으로 인해 동선(銅線)의 길이는 현저하게 줄어들게 된다.As such, the thickness of the tooth portion, that is, the diameter is reduced by the concave grooves 111 and 131, and the length of the copper wire is significantly reduced due to the smaller diameter when the coil for generating the magnetic force is wound around the tooth portion. .

물론 이때 티스부의 직경이 줄어들므로 인해 코어의 무게도 줄어들게 되고, 결국 모터 전체의 중량이 감소하게 되어 전기자동차 등에 사용될 경우 엄청난 연료절감이 가능케 된다.Of course, since the diameter of the tooth part is reduced, the weight of the core is also reduced, and as a result, the weight of the entire motor is reduced, and thus, when used in an electric vehicle, enormous fuel savings are possible.

상기 티스부와 요크부의 안쪽면에는 인서트사출방식에 의해 플라스틱(140)이 일체(一體)로 코팅되어 지는데, 상기 플라스틱(140)은 동선(銅線)과 티스부, 즉 철편(120)과 희토류 괴(110,130)와의 절연을 위해 필요한 구성이다.The inner surface of the tooth part and the yoke part is coated with a plastic 140 by an insert injection method, and the plastic 140 has a copper wire and a tooth part, that is, the iron piece 120 and the rare earth. It is a configuration necessary for insulation from the ingots 110 and 130.

본 발명 분할코어의 제조방법은 먼저 철편(120)을 중앙에 두고 상기 철편(120)의 상부와 하부에 희토류 괴(110,130)를 적층하는 단계와, 상기 적층된 철편(120)과 희토류 괴(110,130)를 합성수지 사출금형(미도시)에 내부에 배치하는 단계와, 상기 사출금형 내부에 배치된 철편(120)과 희토류 괴(110,130)의 티스부와 요크부의 안쪽면에만 용융된 플라스틱(140)을 사출하는 단계와, 상기 사출된 플라스틱(140)을 냉각하는 단계와, 상기 티스부와 요크부의 안쪽면이 플라스틱(140)에 의해 절연 코팅된 철편(120)과 희토류 괴(110,130)를 사출금형으로부터 분리하는 단계로 이루어진다.The method for manufacturing a split core of the present invention comprises first stacking the rare earth ingots 110 and 130 on the upper and lower portions of the iron pieces 120 with the iron pieces 120 in the center, and the stacked iron pieces 120 and the rare earth ingots 110 and 130. ) Is disposed inside the injection mold (not shown) and the molten plastic 140 melted only on the inner side of the teeth and the yoke of the iron piece 120 and the rare earth ingots 110 and 130 disposed inside the injection mold. Injecting, cooling the injected plastic 140, and the inner surface of the teeth and yoke portion is insulated coated iron piece 120 and rare earth ingots 110, 130 by the plastic 140 from the injection mold It is a step of separating.

이때 상기 합성수지 사출금형은 복동(復動)식을 사용함이 바람직하다. 이는 용융된 플라스틱(140)을 인서트된 철편(120)과 희토류 괴(110,130)에 사출함에 있어 균일한 코팅을 가능하게 할 수 있기 때문이다.At this time, the synthetic resin injection mold is preferably to use a double-acting (復 動) formula. This is because it is possible to enable uniform coating in injecting the molten plastic 140 into the inserted iron piece 120 and rare earth ingots (110,130).

즉 단동(單動)식의 경우 강압작용에 의해 사출압력이 불균일하게 작용함으로써 미성형이 발생하거나, 플라스틱 코팅이 불균일해질 수 있기 때문이다.That is, in the case of the single-acting equation, the injection pressure may be non-uniformly acted by the stepping action, which may result in unmolding or the plastic coating may be non-uniform.

반면 복동식의 경우는 중앙부 먼저 플라스틱의 사출이 이루어지고, 이후 모서리부분으로 사출이 이루어지므로 균일한 플라스틱의 코팅이 가능하게 되는 것이다.On the other hand, in the case of double-acting type, the plastic is first injected into the center part, and then the injection is made to the corner part, so that uniform plastic coating is possible.

상기와 같이 철편(120)과 희토류 괴(110,130)을 동시에 일체로 코팅하는 인서트 플라스틱사출방식은 본 발명 분할코어(100)와 같이 희토류 괴(110,130)를 사용하는 경우에나 가능한 기술로, 종래 철편만으로 이루어진 분할코어(1)와 같은 경우는 인서트 플라스틱사출방식을 사용하게 되면 절연체가 너무 두텁게 형성되므로 자력(磁力)이 통과할 수 없게 되고, 이로 인해 코어의 기능을 할 수 없게 된다.
Insert plastic injection method for coating the iron piece 120 and the rare earth ingots (110,130) at the same time integrally as described above is possible only when using the rare earth ingots (110,130), such as the split core 100 of the present invention, In the case of the split core 1, the insert plastic injection method is used so that the insulator is formed too thick, so that the magnetic force cannot pass, thereby preventing the core from functioning.

이처럼 본 발명은 비록 한정된 실시예에 의해 설명되었으나, 본 발명은 이것에 한정되지 않으며 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에 의해 본 발명의 기술사상과 아래에 기재될 특허청구범위의 균등범위 내에서 다양한 수정 및 변형이 가능하다 할 것이다.
As described above, the present invention has been described by means of a limited embodiment, but the present invention is not limited thereto and is intended by those skilled in the art to which the present invention pertains to the technical spirit of the present invention and claims to be described below. Various modifications and variations are possible within the scope of equivalents.

*도면의 주요부분에 대한 부호의 설명*
1: 종래 분할코어 10: 철편
11: 상부커버 12: 측면커버
13: 하부커버 20: 요크부
30: 티스부 31: 티스부의 선단면
100: 본 발명 분할코어 110: 상부 희토류 괴
111: 오목홈 120: 철편
130: 하부 희토류 괴 131: 오목홈
140: 플라스틱* Description of the symbols for the main parts of the drawings *
1: conventional split core 10: iron piece
11: top cover 12: side cover
13: lower cover 20: yoke
30: Teeth portion 31: Tip surface of the Teeth portion
100: present invention split core 110: upper rare earth ingot
111: recessed groove 120: iron piece
130: lower rare earth ingot 131: concave groove
140: plastic

Claims (3)

철편(120)과, 상기 철편(120)의 상부에는 상부 희토류 괴(110)를 적층하고, 철편(120)의 하부에는 하부 희토류 괴(130)를 적층하되, 상기 철편(120)과 희토류 괴(110,130)의 표면 중 티스부와 요크부의 안쪽면이 플라스틱(140)에 의해 코팅되도록 구성됨을 특징으로 하는 희토류계 금속을 사용하는 모터고정자용 분할코어.
The iron piece 120 and the upper rare earth ingot 110 is laminated on the upper part of the iron piece 120, and the lower rare earth ingot 130 is laminated on the lower part of the iron piece 120, but the iron piece 120 and the rare earth ingot ( Split core for motor stator using a rare earth metal, characterized in that the inner surface of the tooth portion and the yoke portion of the surface of the 110, 130 is coated by a plastic (140).
제 1항에 있어서, 상기 상부 희토류 괴(110)에는 상부에 오목홈(111)이 형성되도록 하고, 하부 희토류 괴(130)에는 하부에 오목홈(131)이 형성되도록 하여 티스부의 직경을 줄일 수 있도록 구성됨을 특징으로 하는 희토류계 금속을 사용하는 모터고정자용 분할코어.
According to claim 1, wherein the upper rare earth ingot 110 is formed in the upper recessed groove 111, the lower rare earth ingot 130 is formed in the lower recessed groove 131 in the lower portion can reduce the diameter of the tooth portion A split core for a motor stator using a rare earth metal, characterized in that it is configured to be.
철편(120)을 중앙에 두고 상기 철편(120)의 상부와 하부에 희토류 괴(110,130)를 적층하는 단계와,
상기 적층된 철편(120)과 희토류 괴(110,130)를 합성수지 사출금형(미도시)에 내부에 배치하는 단계와,
상기 사출금형 내부에 배치된 철편(120)과 희토류 괴(110,130)의 티스부와 요크부의 안쪽면에만 용융된 플라스틱(140)을 사출하는 단계와,
상기 사출된 플라스틱(140)을 냉각하는 단계와,
상기 티스부와 요크부의 안쪽면이 플라스틱(140)에 의해 절연 코팅된 철편(120)과 희토류 괴(110,130)를 사출금형으로부터 분리하는 단계로 이루어됨을 특징으로 하는 희토류계 금속을 사용하는 모터고정자용 분할코어의 제조방법.


Stacking the rare earth ingots 110 and 130 on the upper and lower portions of the iron pieces 120 with the iron pieces 120 in the center;
Disposing the stacked iron pieces 120 and the rare earth ingots 110 and 130 in a synthetic resin injection mold (not shown);
Injecting the molten plastic 140 only to the inner surfaces of the teeth and yoke portions of the iron piece 120 and the rare earth ingots 110 and 130 disposed in the injection mold;
Cooling the injected plastic 140;
The inner surface of the tooth portion and the yoke portion for the stator and the motor stator using a rare earth metal, characterized in that the iron piece 120 and the rare earth ingots (110, 130) coated by the insulating mold made of a step of separating from the injection mold Method for producing a split core.


KR1020100139713A 2010-12-30 2010-12-30 Divided core for motor st30tor 30nd m30nuf30cturing method thereof KR101128360B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170021043A (en) 2015-08-17 2017-02-27 갑을메탈 주식회사 Manufacturing device for stator core of motor of vehicle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002540754A (en) 1999-03-22 2002-11-26 ヴァレオ エキプマン エレクトリク モトゥール Rotating electrical equipment with magnets of different composition
JP2004153977A (en) 2002-11-01 2004-05-27 Hitachi Ltd Motor
KR20060006131A (en) * 2004-07-15 2006-01-19 주식회사 한국성산 A laminated structure of rotor core
KR100669025B1 (en) 2005-07-12 2007-01-16 삼성전자주식회사 Core for motor used in washing machine and manufacturing method for the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002540754A (en) 1999-03-22 2002-11-26 ヴァレオ エキプマン エレクトリク モトゥール Rotating electrical equipment with magnets of different composition
JP2004153977A (en) 2002-11-01 2004-05-27 Hitachi Ltd Motor
KR20060006131A (en) * 2004-07-15 2006-01-19 주식회사 한국성산 A laminated structure of rotor core
KR100669025B1 (en) 2005-07-12 2007-01-16 삼성전자주식회사 Core for motor used in washing machine and manufacturing method for the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170021043A (en) 2015-08-17 2017-02-27 갑을메탈 주식회사 Manufacturing device for stator core of motor of vehicle

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