JPS60139923A - Electromagnetic clutch - Google Patents
Electromagnetic clutchInfo
- Publication number
- JPS60139923A JPS60139923A JP58251576A JP25157683A JPS60139923A JP S60139923 A JPS60139923 A JP S60139923A JP 58251576 A JP58251576 A JP 58251576A JP 25157683 A JP25157683 A JP 25157683A JP S60139923 A JPS60139923 A JP S60139923A
- Authority
- JP
- Japan
- Prior art keywords
- armature
- leaf spring
- rotor
- reaction force
- time
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D27/00—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor
- F16D27/10—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings
- F16D27/108—Magnetically- 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
- F16D27/112—Magnetically- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D27/00—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor
- F16D2027/007—Bias of an armature of an electromagnetic clutch by flexing of substantially flat springs, e.g. leaf springs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D27/00—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor
- F16D2027/008—Details relating to the magnetic circuit, or to the shape of the clutch parts to achieve a certain magnetic path
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野）
本発明は電磁クラッチに関するもので、自動車空調用圧
縮機の断続作動に用いて好適なものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an electromagnetic clutch, and is suitable for use in intermittent operation of a compressor for automobile air conditioning.
従来、この種の電磁クラッチでは、励磁コイルに通電さ
れ、アーマチャがロータに吸着される時、すなわちクラ
ッチ連結時に生じる作動音が大きい（１）
という問題がある。Conventionally, this type of electromagnetic clutch has a problem in that the operating noise generated when the excitation coil is energized and the armature is attracted to the rotor, that is, when the clutch is engaged, is large (1).
この問題を解決するには、アーマチャ復帰用バネの反力
を小さくして、小さな吸引力でアーマチャの吸引作動を
行なうようにすればよいが、このようにすると、逆にク
ラッチ切断時にアーマチャの復帰が即座に行われず、ク
ラッチの切れが悪くなるという不具合が生じる。To solve this problem, it is possible to reduce the reaction force of the armature return spring and perform the suction operation of the armature with a small suction force. is not performed immediately, resulting in problems such as poor clutch disengagement.
本発明は上記点に鑑み、クラッチ連結時の作動音を低減
できると同時に、クラッチ切断時の切れも良好にするこ
とができる電磁クラッチを提供することを目的とする。In view of the above points, it is an object of the present invention to provide an electromagnetic clutch that can reduce operating noise when the clutch is engaged, and at the same time, can be smoothly disconnected when the clutch is disengaged.
このために、本発明では、アーマチャの吸引ギャップに
おいて、吸引途中の所定位置からアーマチャ復帰用ばね
の反力が増大するよう構成したものである。For this reason, the present invention is configured such that the reaction force of the armature return spring increases from a predetermined position during suction in the suction gap of the armature.
以下本発明を図に示す実施例について説明する。 The present invention will be described below with reference to embodiments shown in the drawings.
図面は本発明を自動車空調用圧縮機の電磁クラッチに適
用した例を示しており、第１図および第２（２）
図において、１は励磁コイルで、コネクタｌａを介して
リードＩＪｉｌｌｂに接続されている。２はこのコイル
１を収納する継鉄で、磁性材である鉄材を断面コ字形の
リング状に整形しである。そして、この継鉄２とコイル
１との間にはエポキシ樹脂等の樹脂材３が充填してあっ
て、コイル１を継鉄２に接しない状態で固定保持してい
る。また、継鉄２の側面にはリング状の鉄製固定板４が
溶接されており、この固定板４の内周部は従動機器であ
る冷媒圧縮機Ｃのフロントハウジング５に形成された段
部６に嵌着され、固定されている。The drawings show an example in which the present invention is applied to an electromagnetic clutch for an automobile air conditioning compressor. In FIGS. ing. Reference numeral 2 denotes a yoke for housing the coil 1, which is made of a magnetic iron material and shaped into a ring shape with a U-shaped cross section. A resin material 3 such as epoxy resin is filled between the yoke 2 and the coil 1 to fix and hold the coil 1 in a state where it does not come into contact with the yoke 2. In addition, a ring-shaped iron fixing plate 4 is welded to the side surface of the yoke 2, and the inner peripheral part of this fixing plate 4 is connected to a stepped part 6 formed in the front housing 5 of the refrigerant compressor C, which is a driven device. It is fitted and fixed.
また、８は継鉄２の外面および内面と微少間隙を介して
嵌合するように配設されたロータで、磁性材である鉄材
にて断面コ字状の環状に形成されている。このロータ８
の内周部はベアリング９を介してフロントハウジング５
０円筒状部５ａに回転自在に支持され、また外面には図
示しないＶベルトと係合するプーリ１０が一体成形され
ている。A rotor 8 is disposed so as to fit with the outer and inner surfaces of the yoke 2 through a small gap, and is made of a magnetic iron material and has a ring shape with a U-shaped cross section. This rotor 8
The inner circumference of the front housing 5 is connected to the front housing 5 via a bearing 9.
It is rotatably supported by the cylindrical portion 5a, and a pulley 10 that engages with a V-belt (not shown) is integrally formed on the outer surface.
従って、このロータ８は図示しない自動車走行用エンジ
ンの駆動力を前記ベルトを介して受け常時（３）
回転するようになっている。なお、１１はベアリング９
のインナーレースをハウジング５に保持する号−クリッ
プである。１２は前記従動機器の回転軸と直結している
従動軸で、これには鉄製のハブ１３が図示しないキーを
介してナツト１４によって固定しである。１５は磁性材
料からなる環状のアーマチャで、複数個の板ばね１６に
よりハブ１３に連結されている。すなわち、板ばね１６
の一端はアーマチャ１５にリベット１７により固着され
、他端は、リベット１９によりハブ１３に固着されてい
る。Therefore, this rotor 8 receives the driving force of an automobile engine (not shown) through the belt and rotates at all times (3). In addition, 11 is bearing 9
This is a clip that holds the inner race of the housing 5 to the housing 5. Reference numeral 12 denotes a driven shaft that is directly connected to the rotating shaft of the driven device, and an iron hub 13 is fixed to this shaft with a nut 14 via a key (not shown). Reference numeral 15 denotes an annular armature made of a magnetic material, which is connected to the hub 13 by a plurality of leaf springs 16. That is, the leaf spring 16
One end is fixed to the armature 15 with a rivet 17, and the other end is fixed to the hub 13 with a rivet 19.
なお、板ばね１６には短辺部１６ａが一体形成されてお
り、この短辺部１６ａにはアーマチャ１５側へ突出する
突出部１６ｂが一体に打出し形成されている。この突出
部１６ｂによってアーマチャ１５をロータ８側へ押圧し
て板ばね１６の長辺本体部にたわみを与えることにより
、アーマチャ１５を通當時ロータ８から所定間隙だけ開
離した位置に保持するようになっている。Note that the leaf spring 16 is integrally formed with a short side portion 16a, and a protrusion portion 16b that protrudes toward the armature 15 is integrally formed by stamping on this short side portion 16a. By pressing the armature 15 toward the rotor 8 side by the protruding portion 16b and giving deflection to the long side main body portion of the leaf spring 16, the armature 15 is held at a position separated from the rotor 8 by a predetermined gap. It has become.
更に、ハブ１３においてリベット１９が挿入さく４）
れる穴１３ａの近傍で、かつ板ばね１６に対向する面位
には薄肉状の支持片１３ｂ゛が一体に形成されており（
第′３図に詳示する）、そしてこの支持片１３ｂの先端
には板ばね１ｄ側に′突出する突起部１３Ｃが形成され
ている。Furthermore, a thin support piece 13b is integrally formed in the vicinity of the hole 13a into which the rivet 19 is inserted in the hub 13, and on the surface facing the leaf spring 16.
3), and a protrusion 13C is formed at the tip of this support piece 13b to protrude toward the leaf spring 1d.
上記構成において、励磁コ４ル１に通電されないときは
、板ばね１６の作用によってアーマチャ１５がロータ８
より開離した位置に保持されているので、Ｖベルトから
ロータ８に伝達される回転動力によりロータ８はベアリ
ング９上で空転している。In the above configuration, when the excitation coil 1 is not energized, the armature 15 is moved to the rotor 8 by the action of the leaf spring 16.
Since the rotor 8 is held in a more separated position, the rotor 8 is idle on the bearing 9 due to the rotational power transmitted to the rotor 8 from the V-belt.
しかし、励磁コイルｌに通電すると、破線ａで朱す磁気
回路に磁束が生じ、ロータ８の摩擦面とアーマチャ１５
め摩擦面との間に吸引力が生し、アーマチャ１５は板ば
ね１６のばね力に抗してロータ８の摩擦面に吸引され吸
着される。これにより、Ｖベルトからロータ８に伝達さ
れる回転動力は了−マチャ１５−＠ばね１６′−゛ハブ
１３を介して従動軸１２に伝達され、こδ従動軸１２が
回転す杭 ゛”１゛
（５）
ところで、上記したクラッチ連結時におけるアーマチャ
１５の吸引過程において、板ばね１６の作用を更に詳述
すると、板ばね１６は第３図の矢印Ｘ方向に変位するの
であるが、その場合板ばね１６の初−位置０から、緘ば
ね１６がハブ１３の突起部１３Ｃに当接する途中位置Ａ
までの変位区間（０−Ａ）では線ば凪１６が長さの長い
スパンＬｌの張りとして作用し、一方上記Ａ位置から、
アーマチャ１５がロータ８に吸着される位置Ｂまでの変
位区部（Ａ−Ｂ）’ ”ｊ’は板ばね１６が長さの短い
スパンＬ２の張りとして作用する。However, when the excitation coil l is energized, a magnetic flux is generated in the magnetic circuit indicated by the broken line a, and the friction surface of the rotor 8 and the armature 15
A suction force is generated between the armature 15 and the friction surface of the rotor 8, and the armature 15 is attracted and attracted to the friction surface of the rotor 8 against the spring force of the leaf spring 16. As a result, the rotational power transmitted from the V-belt to the rotor 8 is transmitted to the driven shaft 12 via the macha 15-@spring 16'-'hub 13, and the shaft 12 on which the driven shaft 12 rotates. (5) By the way, in the suction process of the armature 15 when the clutch is connected, the action of the leaf spring 16 will be explained in more detail.The leaf spring 16 is displaced in the direction of the arrow X in FIG. From the initial position 0 of the leaf spring 16 to a midway position A where the flat spring 16 abuts the protrusion 13C of the hub 13
In the displacement section (0-A) up to, the line lull 16 acts as a tension in the long span Ll, while from the above A position,
In the displacement section (A-B)'``j'' up to the position B where the armature 15 is attracted to the rotor 8, the leaf spring 16 acts as a tension in the short span L2.
従って、上記の吸引初期のＯ−Ａ区間では板ばね１６の
反力Ｆが第４図のＦ１部分で示すように小さいので、励
磁コイルｉの作動電流が小さくすむ。このことから、ア
ー→チャ１５がロータ８に１
吸着される速度が小さくなり、アーマチャ１５吸着時の
衝撃作動音を減少できる。Therefore, in the O-A section at the initial stage of attraction, the reaction force F of the leaf spring 16 is small as shown by the F1 portion in FIG. 4, so the operating current of the exciting coil i is small. As a result, the speed at which the armature 15 is attracted to the rotor 8 is reduced, and the impact noise when the armature 15 is attracted can be reduced.
しかも二上記した吸引途中以降のＡ−Ｂ区間では、板ば
ねｉ６の反力−が第４図のＦ２部分で示すように急増し
、アーマチャ１５がロータ８に吸（６）
着された位置Ｂでは板ばね１６の反力ＦはＦ３という大
きな値となる。従って、励磁コイル１の通電が遮断され
たときには、上記の大きなばね反力Ｆ−３によってアー
マチャ１５をロータ８から急速に開離し、クラッチの切
れを良好にすることができる。なお、第４図の破線は板
ばね１６のスパンがＬｌのままである時のばね反力を参
考に示す。Moreover, in the section A-B after the middle of the suction mentioned above, the reaction force of the leaf spring i6 rapidly increases as shown in the F2 section in FIG. Then, the reaction force F of the leaf spring 16 becomes a large value of F3. Therefore, when the excitation coil 1 is de-energized, the armature 15 can be rapidly separated from the rotor 8 by the large spring reaction force F-3, and the clutch can be disengaged easily. Note that the broken line in FIG. 4 shows the spring reaction force when the span of the leaf spring 16 remains at Ll for reference.
第５図〜第７図は他の実施例を示すものであって、第５
図ではハブ１３と板ばね１６の長辺本体部との間に金属
製の支点部材２０を追加設置して、板ばね１６のスパン
長さをＬｌからＬ２に変化させるようにしたものである
。支点部材２０の湾曲部先端には前述の突起部１３Ｃと
同様の突起部２０ａが形成しである。本例の支点部材２
０は剛体であってもばね材料であってもよい。5 to 7 show other embodiments, and FIG.
In the figure, a metal fulcrum member 20 is additionally installed between the hub 13 and the long side body portion of the leaf spring 16, so that the span length of the leaf spring 16 is changed from Ll to L2. A protrusion 20a similar to the aforementioned protrusion 13C is formed at the tip of the curved portion of the fulcrum member 20. Fulcrum member 2 of this example
0 may be a rigid body or a spring material.
第６図は板ばね１６とハブ１３との間にワッシャ２１を
挿入するとともに、板ばね１６の長辺本体部の途中にハ
ブ１３側へ突出する突起部１６Ｃを一体に打出し形成す
ることにより、板ばね１６のスパン長さをＬｌからＬ２
に変化させるように（７）
したものである。In FIG. 6, a washer 21 is inserted between the leaf spring 16 and the hub 13, and a protrusion 16C that protrudes toward the hub 13 is integrally formed in the middle of the long side body of the leaf spring 16. , the span length of the leaf spring 16 from Ll to L2
(7).
第７図は、アーマチャ１５側に金属製の支点部材２２を
追加設置して、板ばね１６のスパン長さをＬｌからＬ２
に変化させるようにしたものである。支点部材２２の先
端には突起部２２ａが一体形成してあり、この突起部２
２ａが吸引途中の位置Ａから板ばね１６と当接するよう
になっている。In FIG. 7, a metal fulcrum member 22 is additionally installed on the armature 15 side, and the span length of the leaf spring 16 is changed from Ll to L2.
It was designed to change it to . A projection 22a is integrally formed at the tip of the fulcrum member 22.
2a comes into contact with the leaf spring 16 from position A during suction.
このように、本発明は種々の態様で幅広〈実施できる。As described above, the present invention can be implemented in a wide variety of ways.
上述したごとく本発明によれば、アーマチャの吸引途中
からアーマチャ復帰用板ばねの反力（ばね常数）を増大
するよう構成しているから、クラッチ連結時の作動音を
減少できると同時に、クラッチの切れも良好にすること
ができるというすぐさた効果が得られる。As described above, according to the present invention, since the reaction force (spring constant) of the armature return plate spring is increased from the middle of the armature suction, it is possible to reduce the operating noise when the clutch is engaged, and at the same time, the clutch The immediate effect is that the cutting quality can be improved.
図面は本発明の実施例を示すもので、第１図は本発明ク
ラッチの一部破断正面図、第２図は本発明クラッチの半
断面図、第３図は第１図のＡ−Ａ（８）
矢視拡大断面図、第４図は本発明の作動説明用のグラフ
、第５図、第６図および第７図はそれぞれ本発明の他の
実施例を示す要部断面図である。
１・・・励磁コイル、８・・・ロータ、９・・・ベアリ
ング、１２・・・従動輪、１３・・・ハブ、１３ｂ、１
３Ｃ・・・手 □段の一例をなす支持片、突起部、１５
・・・アーマチャ。
（９）
−一
春り看％や随 −The drawings show embodiments of the present invention; FIG. 1 is a partially cutaway front view of the clutch of the present invention, FIG. 2 is a half-sectional view of the clutch of the present invention, and FIG. 3 is taken along line AA ( 8) An enlarged sectional view taken in the direction of arrows, FIG. 4 is a graph for explaining the operation of the present invention, and FIGS. 5, 6, and 7 are sectional views of essential parts showing other embodiments of the present invention. DESCRIPTION OF SYMBOLS 1... Excitation coil, 8... Rotor, 9... Bearing, 12... Driven wheel, 13... Hub, 13b, 1
3C...Hand □Support piece, protrusion, which is an example of step, 15
...armature. (9) -Ichiharu Rikan%yazui-
Claims (1)
に支持されるロータと、従動軸に連結されたハブと、こ
のハブに板ばねを介して連結されたアーマチャと、この
アーマチャを前記ロータに吸引吸着する励磁コイルと、
前記アーマチャの吸引過程の途中から前記ばねの反力を
増大させる手段とを具備する電磁クラッチ。A rotor to which rotation from a drive source is transmitted and rotatably supported on a bearing, a hub connected to a driven shaft, an armature connected to this hub via a leaf spring, and this armature connected to the rotor. An excitation coil that attracts and attracts
An electromagnetic clutch comprising means for increasing the reaction force of the spring during the suction process of the armature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58251576A JPS60139923A (en) | 1983-12-27 | 1983-12-27 | Electromagnetic clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58251576A JPS60139923A (en) | 1983-12-27 | 1983-12-27 | Electromagnetic clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60139923A true JPS60139923A (en) | 1985-07-24 |
Family
ID=17224865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58251576A Pending JPS60139923A (en) | 1983-12-27 | 1983-12-27 | Electromagnetic clutch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60139923A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5080213A (en) * | 1988-10-24 | 1992-01-14 | Sanden Corporation | Electromagnetic clutch with an adjusting means for adjusting a substantial length of a leaf spring which is for supporting an armature plate |
| US6950001B2 (en) | 2001-02-02 | 2005-09-27 | Oxford Magnet Technology Limited | Superconducting open MRI magnet with transverse magnetic field |
| CN104521454A (en) * | 2014-12-25 | 2015-04-22 | 中外合资沃得重工（中国）有限公司 | Automatic met distribution electromagnetic clutch device of round baler |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5125629U (en) * | 1974-08-16 | 1976-02-25 | ||
| JPS56134633A (en) * | 1980-03-24 | 1981-10-21 | Hitachi Ltd | Solenoid clutch |
-
1983
- 1983-12-27 JP JP58251576A patent/JPS60139923A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5125629U (en) * | 1974-08-16 | 1976-02-25 | ||
| JPS56134633A (en) * | 1980-03-24 | 1981-10-21 | Hitachi Ltd | Solenoid clutch |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5080213A (en) * | 1988-10-24 | 1992-01-14 | Sanden Corporation | Electromagnetic clutch with an adjusting means for adjusting a substantial length of a leaf spring which is for supporting an armature plate |
| AU622938B2 (en) * | 1988-10-24 | 1992-04-30 | Sanden Corporation | Electromagnetic clutch with an adjusting means for adjusting a substantial length of a leaf spring which is for supporting an armature plate |
| US6950001B2 (en) | 2001-02-02 | 2005-09-27 | Oxford Magnet Technology Limited | Superconducting open MRI magnet with transverse magnetic field |
| CN104521454A (en) * | 2014-12-25 | 2015-04-22 | 中外合资沃得重工（中国）有限公司 | Automatic met distribution electromagnetic clutch device of round baler |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0538250Y2 (en) | ||
| US6286650B1 (en) | Coil-rotation type electromagnetic clutch | |
| JPH07174167A (en) | Electromagnetic connecting device | |
| JPH07127662A (en) | Electromagnetic clutch | |
| US4616742A (en) | Spring coupling for an electromagnetic clutch | |
| CA2315961A1 (en) | Electric clutch including resilient disk biasing means | |
| JPS60139923A (en) | Electromagnetic clutch | |
| JPH0512764U (en) | Electromagnetic clutch for compressor | |
| JP2687457B2 (en) | Electromagnetic clutch | |
| US4819778A (en) | Engagement device for an electromagnetic spring-wound clutch | |
| JP2000249166A (en) | Electromagnetic clutch | |
| JPS6135788Y2 (en) | ||
| JPH11325120A (en) | Electromagnetic clutch | |
| KR970005071B1 (en) | Electromagnetic clutch | |
| JPH06159394A (en) | Electromagnetic clutch | |
| KR100728709B1 (en) | Electromagnetic clutch | |
| JP3135047B2 (en) | Electromagnetic clutch | |
| JP2990959B2 (en) | Electromagnetic clutch | |
| JP2773254B2 (en) | Electromagnetic clutch | |
| JPH0650357A (en) | Electromagentic clutch | |
| JPH11201192A (en) | Electromagnetic clutch | |
| JPH0666330A (en) | Electromagnetic clutch | |
| JPH0642556A (en) | Electromagnetic clutch | |
| JPS60121326A (en) | Electromagnetic spring clutch | |
| JPH0914298A (en) | Electromagnetic clutch |