KR20020057163A - Electromagnetic clutch - Google Patents

Electromagnetic clutch Download PDF

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Publication number
KR20020057163A
KR20020057163A KR1020000087426A KR20000087426A KR20020057163A KR 20020057163 A KR20020057163 A KR 20020057163A KR 1020000087426 A KR1020000087426 A KR 1020000087426A KR 20000087426 A KR20000087426 A KR 20000087426A KR 20020057163 A KR20020057163 A KR 20020057163A
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KR
South Korea
Prior art keywords
armature
rotor
compressor
pulley
hub
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KR1020000087426A
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Korean (ko)
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KR100728709B1 (en
Inventor
손은기
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신영주
한라공조주식회사
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Priority to KR1020000087426A priority Critical patent/KR100728709B1/en
Publication of KR20020057163A publication Critical patent/KR20020057163A/en
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Publication of KR100728709B1 publication Critical patent/KR100728709B1/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D27/00Magnetically- or electrically- actuated clutches; Control or electric circuits therefor
    • F16D27/10Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings
    • F16D27/108Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings with axially movable clutching members
    • F16D27/112Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings with axially movable clutching members with flat friction surfaces, e.g. discs

Abstract

PURPOSE: An electronic clutch is provided to integrally form elastic elements with cover plates by joining both on an outer surface of an armature in the axial line direction for absorbing the torque change in a compressor by the elastic elements and the shock noise in case of the restoring of the armature. CONSTITUTION: An electronic clutch includes a pulley(1) for transmitting rotation force of an engine, a rotor(2) coupled with the pulley and rotatably supported by a cylindrical protrusion part of a front housing of a compressor, an armature(6) mounted outwardly in the radial direction, facing a friction surface of the rotor, a coil housing receiving an electronic coil generating magnetic flux which electrically adsorbs the armature to the rotor, an armature hub(8) coupled with a driving shaft of the compressor and having a flange part outwardly in the radial direction, a plurality of plate springs(7), each having a side fixed to the flange part of the armature hub and the other side fixed to the armature to be kept with a predetermined small distance with respect to a friction surface of the rotor when a current is not applied, a plurality of elastic elements(10) positioned between the plate springs and joined with an outer surface of the armature in the axial line direction, and a plurality of cover plates(11) joined with outer surfaces of the elastic elements in the axial line direction and fixed to the armature hubs at either side.

Description

전자클러치{Electromagnetic clutch}Electromagnetic clutch

본 발명은 카에어컨용 냉매압축기의 회전축에 구동원으로부터 구동력을 전달하는 전자클러치에 관한 것이다.The present invention relates to an electromagnetic clutch for transmitting a driving force from a driving source to a rotating shaft of a refrigerant compressor for a car air conditioner.

일반적으로 전자클러치는 냉매압축기의 회전축에 장착되고, 플랜지부를 갖는 허브, 냉매압축기의 회전축을 회전중심으로 하여 엔진의 회전력에 의해 회전하는 로터, 전자코일의 통전시 회전자에 흡착되는 아마추어, 허브의 플랜지부 및 아마추어 사이에 있어서 전자코일의 비통전시 아마추어를 초기상태로 복원시키는 판스핑을 포함하고 있다.In general, the electromagnetic clutch is mounted on the rotating shaft of the refrigerant compressor, the hub having the flange portion, the rotor rotating by the rotational force of the engine with the rotation axis of the refrigerant compressor being rotated, and the armature, the hub adsorbed by the rotor when the electromagnetic coil is energized. It includes a plate spring to restore the armature to the initial state between the flange portion of the armature and the armature when the electromagnetic coil is not energized.

이러한 구조의 전자클러치는 전자코일이 통전되지 않을 경우 아마추어는 판스프링의 탄성력에 의해 로터로부터 이격되고, 이 결과 엔진의 구동력은 냉매압축기에 전달되지 않아 회전자만 회전한다. 반대로, 전자코일이 통전되면, 아마추어가 판스프링의 탄성력에 대항하여 로터의 마찰면에 흡입됨으로써 엔진 구동력을 냉매압축기의 회전축에 전달하게 된다.When the electromagnetic clutch of this structure is not energized, the armature is separated from the rotor by the elastic force of the leaf spring. As a result, the driving force of the engine is not transmitted to the refrigerant compressor, and only the rotor rotates. On the contrary, when the electromagnetic coil is energized, the armature is sucked into the friction surface of the rotor against the elastic force of the leaf spring, thereby transmitting the engine driving force to the rotary shaft of the refrigerant compressor.

그런데 아마추어와 판스프링은 리벳에 의해 일체로 결합되어 있기 때문에 냉매압축기내에서 발생하는 토오크의 변동은 판스프링의 탄성변형에 의해 흡수되지만 판스프링만을 사용한 경우 회전수에 따라서는 냉매압축기내에서 발생한 토오크 변동을 충분히 흡수할 수 없어 토오크 변동폭이 커지는 문제가 있다.However, since the armature and the leaf spring are integrally coupled by rivets, the torque fluctuations generated in the refrigerant compressor are absorbed by the elastic deformation of the leaf spring. However, when only the leaf spring is used, the torque generated in the refrigerant compressor depends on the rotational speed. There is a problem that the torque fluctuation range becomes large because the fluctuation cannot be sufficiently absorbed.

이러한 점을 감안하여 특개공 98-32657호에서는 로터에 흡착하는 아마추어의 마찰면 반대측에 아마추어와 대략 동일한 형상의 탄성체를 갖고, 이 탄성체의 전후면을 각각 동형의 환상디스크로 협착함과 동시에 아마추어와는 일정한 간격을 유지되게 하는 틈새를 갖는 의해 아마추어의 마찰열이 빠져 나갈수 있도록 하고 있다. 이러한 구성에 의하면, 아마추어가 로터에 흡착되어 냉매압축기로부터 토오크변동이 있을 경우 탄성체와 판스프링에 의해 흡수할 수 있지만 아마추어와 탄성체 사이에 틈새를 가지고 있기 때문에 소음을 저감시키는데는 어려움이 있고, 더욱이 탄성체 전후면을 환상디스크로 협착하고 있기 때문에 부품이 증가되는 문제가 있다.In view of this point, Japanese Patent Application Laid-Open No. 98-32657 has an elastic body of approximately the same shape as the armature on the opposite side of the friction surface of the armature adsorbed to the rotor. Has a gap to maintain a constant gap so that the friction heat of the amateur can escape. According to this configuration, the armature is absorbed by the rotor and can be absorbed by the elastic body and the leaf spring when there is a torque change from the refrigerant compressor. Since the front and rear surfaces are squeezed by an annular disk, there is a problem that parts are increased.

본 발명의 목적은 간단한 구조에 의해 아마추어 흡착과 복원시 소음발생을 방지할 수 있는 전자클러치를 제공하는데 있다.An object of the present invention is to provide an electronic clutch that can prevent the generation of noise during the amateur adsorption and restoration by a simple structure.

이러한 목적을 달성하기 위한 본 발명은 엔진의 회전력을 전달하는 풀리; 상기 풀리와 결합되고 압축기의 프론트 하우징의 원통 돌출부에 회전자재하게 지지되는 로터; 반경방향 외측으로 상기 로터의 마찰면과 대면하여 설치되는 아마추어; 상기 로터에 아마추어를 전기흡착하는 자속이 발행하는 전자코일을 수납한 코일하우징; 압축기의 구동축과 결합하고 반경방향 외측으로 플랜지부를 갖는 아마추어허브; 일측이 상기 아마추어허브의 플랜지부에 고정되고 타측이 상기 아마추어에 고정되는 것에 의해 비통전시 상기 로터의 마찰면에 대해 미소거리 유지되게 상기 아마추어를 복원시키는 복수의 판스프링; 상기 복수의 판스프링사이에 위치하며, 상기 아마추어의 축선방향 외측면에 접합되는 복수의 탄성부재; 및 상기 탄성부재의 축선방향 외측면에 동일한 형상으로 접합되며, 일측이 상기 아마추어 허브에 고정되는 복수의 덮개플레이트;를 포함하여 구성된 것을 특징으로 한다.The present invention for achieving this object is a pulley for transmitting the rotational force of the engine; A rotor coupled to the pulley and rotatably supported on a cylindrical projection of the front housing of the compressor; An armature installed radially outward to face the friction surface of the rotor; A coil housing accommodating an electromagnetic coil issued by a magnetic flux for electroadsorbing an armature in the rotor; An armature hub engaged with the drive shaft of the compressor and having a radially outward flange; A plurality of leaf springs for restoring the armature such that one side is fixed to the flange portion of the armature hub and the other side is fixed to the armature so that the armature is kept at a small distance from the friction surface of the rotor during non-energization; A plurality of elastic members positioned between the plurality of leaf springs and bonded to the axial outer surface of the armature; And a plurality of cover plates joined to the axially outer surface of the elastic member in the same shape and having one side fixed to the armature hub.

이러한 구성에 의하면, 아마추어와 탄성부재가 접합되어 있으므로, 전자코일 통전시 압축기의 토오크 변동을 흡수할 수 있고, 반대로 전자코일 비통전시 아마추어가 복원할 때 발생하는 충격음을 흡수할 수 있다.According to such a structure, since the armature and the elastic member are joined, the torque fluctuation of the compressor can be absorbed when the electromagnetic coil is energized, and on the contrary, the impact sound generated when the armature is restored when the electromagnetic coil is not energized can be absorbed.

도 1은 본 발명의 실시예를 보인 전자클러치 정면도,1 is an electronic clutch front view showing an embodiment of the present invention,

도 2은 도 1의 A-A선 단면도.2 is a cross-sectional view taken along the line A-A of FIG.

* 도면의 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

1 : 풀리 2 : 로터1: pulley 2: rotor

3 : 베어링 4 : 코일하우징3: bearing 4: coil housing

5 : 전자코일 6 : 아마추어5: electronic coil 6: amateur

7 : 판스프링 10 : 탄성부재7: leaf spring 10: elastic member

11 : 덮개플레이트11: cover plate

이하, 본 발명의 바람직한 실시예를 첨부된 도면을 통해 설명한다. 도 1은 본 발명의 실시예인 전자클러치의 정면도이고, 도 2는 본 발명의 요부를 보인 도 1의 A-A선 단면도이다.Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. 1 is a front view of an electronic clutch which is an embodiment of the present invention, and FIG. 2 is a cross-sectional view taken along the line A-A of FIG. 1 showing the main part of the present invention.

부호 1은 구동측 풀리로, 도시하지 않은 밸트를 개재하여 차량 엔진에서 회전력을 받아 회전하게 된다. 부호 2는 단면이 ㄷ자 형상의 2중 원통형상으로 형성된 구동측 로터로, 풀리(1)와는 용접등의 접합수단으로 일체로 접합되어 있다. 이 로터(2)의 내주부에는 베어링(3)이 배설되고, 이 베어링(3)에 의해 로터(2)는 압축기(12)의 프론트 하우징의 원통 돌출부상에 회전자재하게 지지되어 있다.Reference numeral 1 is a driving side pulley, and rotates by receiving a rotational force from the vehicle engine via a belt (not shown). Reference numeral 2 is a drive-side rotor formed in a double cylindrical shape having a U-shape in cross section, and the pulley 1 is integrally joined by a joining means such as welding. The bearing 3 is arrange | positioned at the inner peripheral part of this rotor 2, and the rotor 2 is rotatably supported on the cylindrical protrusion part of the front housing of the compressor 12 by this bearing 3.

4는 고정자극부재로서 역할하는 코일하우징으로, 단면이 ㄷ자 형상의 2중 원통형상으로 금속으로 형성되어 있고, 이 코일하우징(4)의 내부에는 환상의 전자코일(5)이 내장되어 수지부재에 의해 절연 고정되어 있다.4 is a coil housing serving as a fixed magnetic pole member. The cross section is formed of a metal in a double cylindrical shape having a U-shape in cross section. The coil housing 4 has an annular electromagnetic coil 5 embedded therein, It is fixed by insulation.

6은 로터(2)의 마찰면에 대향하여 배설된 아마추어이고, 링형상의 금속으로 형성되어 있다. 이 아마추어(6)는 전자코일(5)의 비통전시에 후술하는 판스프링의 탄성력 의해 로터(2)의 마찰면에서 소정의 미소거리로 이격된 위치에 보지하도록 되어 있다. 이 아마추어(6)에도 원주방향으로 펼쳐진 원호상의 전기차단구가 형성되어 있다.6 is an armature arrange | positioned facing the friction surface of the rotor 2, and is formed from the ring-shaped metal. The armature 6 is held at a position separated by a predetermined minute distance from the friction surface of the rotor 2 by the elastic force of the leaf spring described below when the electromagnetic coil 5 is not energized. The armature 6 is also provided with an arc-shaped electrical cut-out device extending in the circumferential direction.

전자코일(5)로의 통전에 의해 발생하는 자속이 흐르는 자기회로는 상기 로터(2), 코일하우징(4) 및 아마추어(6)에 의해 구성되어 있다.The magnetic circuit in which the magnetic flux generated by energization of the electromagnetic coil 5 flows is constituted by the rotor 2, the coil housing 4, and the armature 6.

7은 금속으로 이루어진 판스프링이고, 이 판스프링(7)은 아마추어(6)와 아마추어허브(8)의 플랜지부(8a)에 그 양단이 리벳(9)에 의해 고정되어 그 복원력에 의해 전자코일의 비통전시 로터(2)의 마찰면으로 미소거리 유지되게 복원시킨다.7 is a leaf spring made of metal, and the leaf spring 7 is fixed to the flange portion 8a of the armature 6 and the armature hub 8 by means of a rivet 9 and is fixed to the electromagnetic coil by its restoring force. When the non-energization of the rotor 2, the friction surface is restored to maintain a small distance.

상기 판스프링(7)은 일자형태의 판체로 이루어지며, 양단부는 아마추어(6)에 결합하기 위해 절곡되어 평면으로 이루어지며, 그 중앙은 일정한 경사면을 갖고 비통전시 아마추어(6)를 로터(2)의 마찰면으로부터 미소거리가 유지되게 세팅되어 있으며, 원심력방향으로 배치되어 있다.The leaf spring (7) is made of a straight plate, both ends are bent to couple to the armature (6) is made of a flat surface, the center of which has a constant inclined surface and the armature (6) in the non-electrical rotor (2) The micro distance is set so as to be kept from the friction surface, and is arranged in the centrifugal force direction.

더욱이 본 발명은 아마추어(6)의 축선방향 외측 즉, 로터(2)와 대접하는 반대면에는 탄성부재(10)가 접합되며, 이 탄성부재(10)의 표면에는 덮개플레이트(11)가 접합되어 있다.Furthermore, in the present invention, the elastic member 10 is bonded to the axially outer side of the armature 6, that is, the opposite surface facing the rotor 2, and the cover plate 11 is bonded to the surface of the elastic member 10. have.

이 탄성부재(10)는 상기 판스프링(7)과의 간섭을 피해 3개의 부재로 분할되어 아마추어(6)에 표면에 접합되며, 덮개플레이트(11)도 이와 동일하게 3개의 부재로 구성된다.The elastic member 10 is divided into three members to avoid interference with the leaf spring 7 and bonded to the surface of the armature 6, and the cover plate 11 is similarly composed of three members.

상기 탄성부재(10)는 아마추어(6)와 같이 그 외주연과 내주연이 원호를 형성하고 있는 원판을 판스프링(7)의 배치방향으로 절개하여 분할한 고무부재이고, 통전시 압축기내의 토오크변동을 흡수하며, 반대로 비통전시 아마추어 복원시 소음을 흡수하게 된다.The elastic member 10 is a rubber member obtained by cutting a disc having an outer circumference and an inner circumference forming an arc, such as an armature 6, in the arrangement direction of the leaf spring 7, and the torque fluctuation in the compressor during energization. On the contrary, it absorbs noise when restoring armature during non-energization.

상기 덮개플레이트(11)는 금속 등의 내열성이 우수한 재질로서, 상기 탄성부재(10)와 동일한 형상으로 이루어지고, 다만 내측 일단부가 연장되어 아마추어허브(8)의 플랜지부(8a)에 리벳(9)에 의해 고정되며, 탄성부재(10)와는 대면 접합되어 있다.The cover plate 11 is made of a material having excellent heat resistance, such as metal, and has the same shape as the elastic member 10, but has an inner end portion extended such that the rivet 9 is provided on the flange portion 8a of the armature hub 8. It is fixed by) and is joined to the elastic member 10 face to face.

이상에 의한 구조로 된 전자클러치는 자동차 엔진의 구동에 의해 V 밸트를 개재하여 풀리(1)가 상시 회전하고 있기 때문에 전자코일(5)이 통전되어 발생하는 자속이 로터(2)에서 아마추어(6)로 순회되면, 아마추어(6)가 로터(2)에 자기흡착되면서 풀리(1)의 회전이 아마추어(6), 판스프링(7), 탄성부재(10),덮개플레이트(11) 및 아마추어허브(8)를 통해 압축기(12)의 구동축(13)에 전달되며, 이때 탄성부재(10)는 압축기내의 토오크 변동이 있을 경우 그 토오크 변동이 탄성부재(10)와 판스프링(7)에 흡수되고, 반대로 전자코일(5)의 비통전시 로터(2)의 마찰면으로부터 아마추어(6)가 초기 세팅상태로 복원할 때 발생하는 소음을 흡수할 수 있다.Since the pulley 1 is always rotated through the V-belt by the drive of an automobile engine, the magnetic clutch generated by the above-described structure has a magnetic flux generated by the electromagnetic coil 5 being energized. ), The armature 6 self-adsorbs to the rotor 2 and the rotation of the pulley 1 causes the armature 6, the leaf spring 7, the elastic member 10, the cover plate 11 and the armature hub. It is transmitted to the drive shaft 13 of the compressor 12 through the (8), wherein the torque change in the elastic member 10 is absorbed by the elastic member 10 and the leaf spring (7) when there is a torque change in the compressor On the contrary, the noise generated when the armature 6 is restored to the initial setting state can be absorbed from the friction surface of the rotor 2 when the electromagnetic coil 5 is not energized.

이상에서 설명한 바와 같이 본 발명은 아마추어의 축선방향 외측면에 탄성부재와 덮개플레이트를 접합시켜 일체적으로 형성함으로써 이 탄성부재에 의해 압축기내의 토오크변동을 흡수할 수 있을 뿐만 아니라 아마추어 복원시 충격음을 흡수함으로써 소음을 저감시킬 수 있다.As described above, according to the present invention, the elastic member and the cover plate are integrally formed on the axially outer side of the armature so that the elastic member can absorb the torque fluctuation in the compressor and absorb the shock sound when the armature is restored. By doing so, noise can be reduced.

Claims (1)

엔진의 회전력을 전달하는 풀리;A pulley for transmitting the rotational force of the engine; 상기 풀리와 결합되고 압축기의 프론트 하우징의 원통 돌출부에 회전자재하게 지지되는 로터;A rotor coupled to the pulley and rotatably supported on a cylindrical projection of the front housing of the compressor; 반경방향 외측으로 상기 로터의 마찰면과 대면하여 설치되는 아마추어;An armature installed radially outward to face the friction surface of the rotor; 상기 로터에 아마추어를 전기흡착하는 자속이 발행하는 전자코일을 수납한 코일하우징;A coil housing accommodating an electromagnetic coil issued by a magnetic flux for electroadsorbing an armature in the rotor; 압축기의 구동축과 결합하고 반경방향 외측으로 플랜지부를 갖는 아마추어허브;An armature hub engaged with the drive shaft of the compressor and having a radially outward flange; 일측이 상기 아마추어허브의 플랜지부에 고정되고 타측이 상기 아마추어에 고정되는 것에 의해 비통전시 상기 로터의 마찰면에 대해 미소거리 유지되게 상기 아마추어를 복원시키는 복수의 판스프링;A plurality of leaf springs for restoring the armature such that one side is fixed to the flange portion of the armature hub and the other side is fixed to the armature so that the armature is kept at a small distance from the friction surface of the rotor during non-energization; 상기 복수의 판스프링사이에 위치하며, 상기 아마추어의 축선방향 외측면에 접합되는 복수의 탄성부재; 및A plurality of elastic members positioned between the plurality of leaf springs and bonded to the axial outer surface of the armature; And 상기 탄성부재의 축선방향 외측면에 동일한 형상으로 접합되며, 일측이 상기 아마추어 허브에 고정되는 복수의 덮개플레이트;를 포함하는 것을 특징으로 하는 전자클러치.And a plurality of cover plates joined to the axially outer surface of the elastic member in the same shape and having one side fixed to the armature hub.
KR1020000087426A 2000-12-30 2000-12-30 Electromagnetic clutch KR100728709B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040035490A (en) * 2002-10-22 2004-04-29 한국델파이주식회사 Clutch damper of compressor for vehicle
CN113277232A (en) * 2021-04-09 2021-08-20 于都金开莱生态农业发展有限公司 Green food storage and transportation sterilization system and sterilization method thereof

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KR950005877A (en) * 1993-08-24 1995-03-20 강박광 Bismaleimide resins and their preparation method
JP2931255B2 (en) * 1996-07-04 1999-08-09 日本曹達株式会社 How to prevent scale on toilet drainpipe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040035490A (en) * 2002-10-22 2004-04-29 한국델파이주식회사 Clutch damper of compressor for vehicle
CN113277232A (en) * 2021-04-09 2021-08-20 于都金开莱生态农业发展有限公司 Green food storage and transportation sterilization system and sterilization method thereof

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