KR20070030793A - Electromagnetic actuator comprising an electromagnet provided with a permanent magnet solenoid and method for assembling said actuator - Google Patents

Electromagnetic actuator comprising an electromagnet provided with a permanent magnet solenoid and method for assembling said actuator Download PDF

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KR20070030793A
KR20070030793A KR1020067024644A KR20067024644A KR20070030793A KR 20070030793 A KR20070030793 A KR 20070030793A KR 1020067024644 A KR1020067024644 A KR 1020067024644A KR 20067024644 A KR20067024644 A KR 20067024644A KR 20070030793 A KR20070030793 A KR 20070030793A
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South Korea
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actuator
permanent magnet
coil
core
electromagnet
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KR1020067024644A
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Korean (ko)
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크리스토프 마에르키
뤼씨앙 동스
에디 쉐리-즈꼬뜨
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발레오 시스템므 드 꽁트롤르 모뙤르
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Priority to KR1020067024644A priority Critical patent/KR20070030793A/en
Publication of KR20070030793A publication Critical patent/KR20070030793A/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/121—Guiding or setting position of armatures, e.g. retaining armatures in their end position
    • H01F7/122—Guiding or setting position of armatures, e.g. retaining armatures in their end position by permanent magnets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
    • H01F27/306—Fastening or mounting coils or windings on core, casing or other support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/327—Encapsulating or impregnating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/40—Structural association with built-in electric component, e.g. fuse
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/02—Cores, Yokes, or armatures made from sheets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/12—Insulating of windings
    • H01F41/127—Encapsulating or impregnating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/06—Insulation of windings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/081—Magnetic constructions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/16—Rectilinearly-movable armatures
    • H01F7/1638—Armatures not entering the winding
    • H01F7/1646—Armatures or stationary parts of magnetic circuit having permanent magnet

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Manufacturing & Machinery (AREA)
  • Electromagnets (AREA)

Abstract

본 발명은, 코일(3)에 의해 발생된 자속을 안내하여 상기 자속이 액추에이터 부재를 둘러싸도록 배치된 코어(2)와 연관된 코일(3)을 구비하는 적어도 하나의 전자석(1)의 작용 하에서 이동 가능한 액추에이터 부재(7, 8); 케이싱(20)내에 감싸진 도체선의 와인딩(21)을 구비하는 코일; 및 코어가 영구 자석에 의해 발생된 자속을 안내하여 상기 자속이 액추에이터 부재를 둘러싸는 방식으로 코어(2)에 대하여 배치된 적어도 하나의 영구 자석(4)을 구비하는 전자석;을 포함하는 전자기 액추에이터를 개시한다. 본 발명에 따르면, 영구 자석(4)을 도체선의 와인딩(21)에 고정하여 도체선 와인딩 및 영구 자석이 코어에 끼워 맞춰지기에 적당한 일체 조립체를 형성하는 방식으로, 코일의 케이싱(20)이 영구 자석(4)의 적어도 일부를 덮는다.The invention is directed under the action of at least one electromagnet 1 having a coil 3 associated with a core 2 arranged to guide the magnetic flux generated by the coil 3 so that the magnetic flux surrounds the actuator member. Possible actuator members 7, 8; A coil having a winding 21 of conductor wire wrapped in a casing 20; And an electromagnet having at least one permanent magnet 4 disposed with respect to the core 2 in such a way that the core guides the magnetic flux generated by the permanent magnet so that the magnetic flux surrounds the actuator member. It starts. According to the invention, the casing 20 of the coil is permanent in such a way that the permanent magnet 4 is fixed to the winding 21 of the conductor wire to form an integral assembly suitable for the conductor wire winding and the permanent magnet to fit into the core. At least a part of the magnet 4 is covered.

전자기 액추에이터, 영구 자석, 전기자, 전자석, 케이싱 Electromagnetic actuator, permanent magnet, armature, electromagnet, casing

Description

영구 자석 솔레노이드가 제공되는 전자석을 구비하는 전자기 액추에이터 및 상기 액추에이터의 조립방법{Electromagnetic actuator comprising an electromagnet provided with a permanent magnet solenoid and method for assembling said actuator}Electromagnetic actuator comprising an electromagnet provided with a permanent magnet solenoid and method for assembling said actuator}

본 발명은 전자기 액추에이터에 관한 것으로, 더 상세하게는 조립이 단순화되는 전자기 액추에이터에 관한 것이다.The present invention relates to an electromagnetic actuator, and more particularly to an electromagnetic actuator in which assembly is simplified.

전자기 액추에이터는 코일에 의해 발생된 자속을 안내하여 상기 자속이 액추에이터 부재를 둘러싸도록 배치된 코어와 연관된 코일을 구비하는 적어도 하나의 전자석의 작용 하에서 이동 가능한 액추에이터 부재, 케이싱 내에 감싸진 도체선의 와인딩(winding)을 구비하는 코일, 및 코어가 영구 자석에 의해 발생된 자속을 안내하여 상기 자속이 액추에이터 부재를 둘러싸는 방식으로 코어에 대하여 배치된 적어도 하나의 영구 자석을 구비하는 전자석을 구비하는 것으로 알려져 있다.The electromagnetic actuator guides the magnetic flux generated by the coil so that the magnetic flux can move under the action of at least one electromagnet having a coil associated with the core arranged to surround the actuator member, the winding of the conductor wire wrapped in the casing It is known to have an electromagnet having a coil having a coil) and at least one permanent magnet disposed about the core in such a way that the core guides the magnetic flux generated by the permanent magnet so that the magnetic flux surrounds the actuator member.

그러므로 액추에이터를 조립하기 위해 수많은 독립 요소들이 취급되어야 하므로, 조립을 복잡하게 한다.Therefore, as many independent elements have to be handled to assemble the actuator, the assembly is complicated.

본 발명에 따르면, 영구 자석을 도체선의 와인딩에 고정하여 도체선 와인딩 및 영구 자석이 코어에 끼워 맞춰지기에 적당한 일체 조립체를 형성하는 방식으로, 코일의 케이싱이 영구 자석의 적어도 일부를 덮는 상기한 유형의 전자기 액추에이터가 제공된다. According to the present invention, the type of the casing of the coil covers at least part of the permanent magnet in such a way that the permanent magnet is fixed to the winding of the conductor wire to form an integral assembly suitable for the conductor wire winding and the permanent magnet to fit to the core. Of electromagnetic actuators is provided.

이것은 취급될 필요가 있는 독립 요소들의 개수를 줄임으로써 조립을 단순화한다.This simplifies assembly by reducing the number of independent elements that need to be handled.

또한, 본 발명은, 코어를 가지는 전자석과 액추에이터 부재, 도체선의 와인딩을 구비하는 코일, 및 추가 요소를 구비하는 액추에이터의 조립 방법을 제공하며, 이 방법은 코일과 코어를 함께 조립하기 전에 추가 요소를 코일에 고정하는 단계를 포함한다.The present invention also provides a method of assembling an electromagnet having an core and an actuator member, a coil having a winding of the conductor wire, and an actuator having an additional element, which method requires the additional element to be assembled before assembling the coil and core together. Securing to the coil.

본 발명의 액추에이터의 부분 절단 사시도인 하나의 도면을 참조하여 기술되는 다음의 설명에 비추어 보면 더욱 잘 이해될 것이다.It will be better understood in view of the following description, which is described with reference to one drawing which is a partially cutaway perspective view of the actuator of the present invention.

도 1은 본 발명의 일 실시예에 따른 전자기 액추에이터의 부분 절단 사시도이다.1 is a partial cutaway perspective view of an electromagnetic actuator according to an embodiment of the present invention.

도 1을 참조하면, 본 발명의 액추에이터는 서로 마주보도록 배치된 두 개의 전자석(1)을 구비하며, 각 전자석은 강자성 물질의 라미네이션(lamination) 적층에 의해 구성된 코어(2)를 구비한다. 도면에서, 상부 전자석의 코어는 일점 쇄선으로 외곽선의 형태로 보인다. 전자석(1)들은 코어(2)들을 오버몰딩(overmolding)함으로써 얻어진 케이스(50)내에 결합된다.Referring to FIG. 1, the actuator of the present invention has two electromagnets 1 arranged to face each other, each electromagnet having a core 2 constituted by lamination of ferromagnetic materials. In the figure, the core of the upper electromagnet is seen in the form of an outline with a dashed dashed line. The electromagnets 1 are bonded in the case 50 obtained by overmolding the cores 2.

각 코어(2)들은 코일(3)이 연장하는 하우징을 형성하는 요부(recess)들에 의해 분리된 가지(branch)들을 가진다.Each core 2 has branches separated by recesses that form a housing in which the coil 3 extends.

코어(2)들을 구성하는 라미네이션들은 영구 자석(4)들이 코어 내에 삽입될 수 있도록 절단된다. 이것은 하부 전자석을 보면 명확하게 관찰되는데, 하부 전자석에서 코일(3)과 자석(4)들이 P 평면에서 단면으로 보이며, 영구 자석(4)들이 코어(2)의 라미네이션들을 대응하는 수의 라미네이션 패킷을 구성하는 세 개의 독립적인 부분들로 나눈다.Laminations constituting the cores 2 are cut so that the permanent magnets 4 can be inserted into the core. This is clearly seen in the lower electromagnet, in which the coils 3 and the magnets 4 are shown in cross-section in the P plane, and the permanent magnets 4 have a corresponding number of lamination packets corresponding to the laminations of the core 2. It is divided into three independent parts.

또한, 액추에이터는 하부 전자석(1)의 코어(2)의 중앙 가지에서의 삽입부(insertion)에 슬라이딩 가능하게 장착되는 푸셔(pusher)(7)를 구비한다. 푸셔(7)는 구동 요소, 예를 들면 내연기관에서의 흡기 또는 배기 밸브와 함께 작동하는 케이스(50)로부터 돌출되는 자유단을 가지며, 푸셔(7)의 타단은 전자석(1) 사이에 연장하는 전기자(armature)(8)에 고정된다.The actuator also has a pusher 7 which is slidably mounted to an insertion in the central branch of the core 2 of the lower electromagnet 1. The pusher 7 has a free end projecting from a case 50 which works with a drive element, for example an intake or exhaust valve in an internal combustion engine, and the other end of the pusher 7 extends between the electromagnets 1. It is fixed to an armature 8.

액추에이터가 작동중일 때, 전기자(8)는 두 반대 위치 사이를 움직이며, 전기자(8)는 선택적으로 전기자를 유인하는 전자석들(1)과 두 반대 위치의 실질적인 중간인 평형 위치 쪽으로 복원시키기 위하여 푸셔(7)에 작용하는 스프링(미도시) 양 쪽의 영향 하에 전자석(1)의 코어(2)들의 일단 및 타단과 접촉한다.When the actuator is in operation, the armature 8 moves between two opposing positions, and the armature 8 is selectively pushed back to the equilibrium position which is substantially intermediate between the two opposing positions with the electromagnets 1 attracting the armature. Under the influence of both springs (not shown) acting on (7) it contacts one end and the other end of the cores 2 of the electromagnet 1.

각 코일(3)들은 도체선의 와인딩(21)을 감싸는 케이싱(20)을 가진다. 케이싱(20)은 도체선(21)을 보호하고, 도체선과 대응 코어(2) 사이의 전기적인 접촉을 제공한다. 또한, 케이싱(20)은, 코일(3)과 대응하는 코어(2) 사이의 열 교환 면적을 증가시킴으로써, 상기 두 요소들 간의 열 연속성(thermal continuity)을 향상시 키는 역할을 수행한다.Each coil 3 has a casing 20 which wraps around a winding 21 of the conductor wire. The casing 20 protects the conductor wire 21 and provides electrical contact between the conductor wire and the corresponding core 2. The casing 20 also serves to improve the thermal continuity between the two elements by increasing the heat exchange area between the coil 3 and the corresponding core 2.

본 발명에 따르면, 케이싱(20)은 영구 자석(4)들의 끝을 수용하기 위해 연장되는 돌출부(22)들을 가진다. 돌출부(22)들은 영구 자석(4)들을 코일들에 고정함으로써 코일과 영구 자석들이 함께 일체의 조립체(one-piece unitary assembly)를 형성한다. 코일의 케이싱(20)과 돌출부(22)들은 바람직하게는 몰딩에 의해 동시에 만들어진다. 이렇게 하기 위하여, 도체선 와인딩(21)과 영구 자석(4)들은 금형(mold)에 위치되고, 고형화되었을 때 케이싱(20)과 돌출부(22)들을 형성하도록 비도체 물질(예를 들면, 폴리머)이 금형에 주입된다. According to the invention, the casing 20 has projections 22 extending to receive the ends of the permanent magnets 4. The protrusions 22 secure the permanent magnets 4 to the coils so that the coil and the permanent magnets together form a one-piece unitary assembly. The casing 20 and the protrusions 22 of the coil are preferably made simultaneously by molding. To do this, the conductor wire winding 21 and the permanent magnets 4 are placed in a mold and, when solidified, a non-conductive material (eg polymer) to form the casing 20 and the protrusions 22. It is injected into the mold.

액추에이터의 조립 중에, 이미 조립된 라미네이션 패킷들은 금형 내에 위치되고, 비강자성 물질(예를 들면, 알루미늄)이 금형 내에 주입되며, 그 물질이 고형화되면 액추에이터의 케이스(50)를 형성하는 반쪽 케이스의 하나가 형성된다. 그러므로 라미네이션들의 패킷들은 서로 고정되고 각 전자석들의 코어를 형성한다.During assembly of the actuator, the already assembled lamination packets are placed in the mold, a non-ferromagnetic material (eg aluminum) is injected into the mold and one of the half cases forming the case 50 of the actuator when the material solidifies. Is formed. Thus packets of laminations are fixed to each other and form the core of each electromagnet.

그 이후, 코일 및 자석들에 의해 형성된 일체의 조립체는 반쪽 케이스에 주입된다. 이것은 본 발명의 액추에이터의 조립이 특히 간단해지도록 만들어준다.Thereafter, the integral assembly formed by the coils and magnets is injected into the half case. This makes the assembly of the actuator of the invention particularly simple.

본 발명은 상기한 특정 실시예에 국한되지 아니하며, 오히려 청구범위에 의해 정의되는 바와 같이 본 발명의 보호범위내에서 다양하게 변형되는 것들도 포함한다.The invention is not limited to the specific embodiments described above, but rather includes those that are variously modified within the scope of the invention as defined by the claims.

특히, 도시된 액추에이터는 두 개의 전자석들을 가지지만, 또한 본 발명은 하나의 전자석을 가지는 액추에이터에도 적용될 수 있다. In particular, the illustrated actuator has two electromagnets, but the invention can also be applied to an actuator having one electromagnet.

돌출부들이 단지 영구 자석의 일부만을 감싸는 것으로 기재되어 있으나(특히 자석의 끝에 도시된 예에서), 케이싱은 추가 요소를 전체적으로 덮을 수도 있다.Although the protrusions are described as wrapping only part of the permanent magnet (especially in the example shown at the end of the magnet), the casing may cover the additional element as a whole.

뿐만 아니라, 영구 자석은 돌출부 이외의 수단, 예를 들면 케이싱의 보스(boss)에 의해서도 고정될 수 있다.In addition, the permanent magnet may be fixed by means other than the protrusion, for example, by the boss of the casing.

본 발명은 전자기에 의하여 구동되는 액추에이터를 사용하는 모든 산업 분야에 이용될 수 있다.The invention can be used in all industrial fields using actuators driven by electromagnetic.

Claims (3)

코일(3)에 의해 발생된 자속을 안내하여 상기 자속이 액추에이터 부재를 둘러싸도록 배치된 코어(2)와 연관된 코일(3)을 구비하는 적어도 하나의 전자석(1)의 작용 하에서 이동 가능한 액추에이터 부재(7, 8); An actuator member movable under the action of at least one electromagnet 1 having a coil 3 associated with a core 2 arranged to guide the magnetic flux generated by the coil 3 so that the magnetic flux surrounds the actuator member ( 7, 8); 케이싱(20)내에 감싸진 도체선의 와인딩(21)을 구비하는 코일; 및 A coil having a winding 21 of conductor wire wrapped in a casing 20; And 코어가 영구 자석에 의해 발생된 자속을 안내하여 상기 자속이 액추에이터 부재를 둘러싸는 방식으로 코어(2)에 대하여 배치된 적어도 하나의 영구 자석(4)을 구비하는 전자석;을 포함하며,An electromagnet having at least one permanent magnet 4 disposed with respect to the core 2 in such a way that the core guides the magnetic flux generated by the permanent magnet so that the magnetic flux surrounds the actuator member; 영구 자석(4)을 도체선의 와인딩(21)에 고정하여 도체선 와인딩 및 영구 자석이 코어에 끼워 맞춰지기에 적당한 일체 조립체를 형성하는 방식으로, 코일의 케이싱(20)이 영구 자석(4)의 적어도 일부를 덮는 전자기 액추에이터.The casing 20 of the coil is connected to the permanent magnet 4 in such a way that the permanent magnet 4 is fixed to the winding 21 of the conductor wire to form an integral assembly suitable for the conductor wire winding and the permanent magnet to be fitted to the core. Electromagnetic actuator covering at least part of it. 제1 항에 있어서,According to claim 1, 상기 케이싱(20)은 각각이 영구 자석(4)의 일단을 수용하도록 배치된 돌출부(22)를 가지는 전자기 액추에이터.The casing (20) has an electromagnetic actuator each having a protrusion (22) arranged to receive one end of the permanent magnet (4). 코어(2)를 가지는 전자석과 액추에이터 부재(7, 8), 도체선의 와인딩(21)을 구비하는 코일, 및 추가 요소(4)를 구비하는 액추에이터의 조립 방법으로서, 코일(3)과 코어(2)를 함께 조립하기 전에 추가 요소를 코일에 고정하는 단계를 포함 하는 액추에이터 조립 방법.An electromagnet having a core 2 and actuator members 7, 8, a coil having a winding 21 of conductor wires, and an actuator having an additional element 4 as a method of assembling the coil 3 and the core 2. ) Securing the additional element to the coil prior to assembling the actuator together.
KR1020067024644A 2004-05-24 2005-05-23 Electromagnetic actuator comprising an electromagnet provided with a permanent magnet solenoid and method for assembling said actuator KR20070030793A (en)

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KR1020067024644A KR20070030793A (en) 2004-05-24 2005-05-23 Electromagnetic actuator comprising an electromagnet provided with a permanent magnet solenoid and method for assembling said actuator

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FR0405569 2004-05-24
KR1020067024644A KR20070030793A (en) 2004-05-24 2005-05-23 Electromagnetic actuator comprising an electromagnet provided with a permanent magnet solenoid and method for assembling said actuator

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