WO2018047568A1 - Electromagnetic clutch - Google Patents
Electromagnetic clutch Download PDFInfo
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- WO2018047568A1 WO2018047568A1 PCT/JP2017/028856 JP2017028856W WO2018047568A1 WO 2018047568 A1 WO2018047568 A1 WO 2018047568A1 JP 2017028856 W JP2017028856 W JP 2017028856W WO 2018047568 A1 WO2018047568 A1 WO 2018047568A1
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- WIPO (PCT)
- Prior art keywords
- rotor
- armature plate
- hub
- electromagnetic clutch
- connecting member
- Prior art date
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Classifications
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- 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
Definitions
- the present invention relates to an electromagnetic clutch that intermittently transmits drive power to a driven device.
- Patent Document 1 describes an electromagnetic clutch that intermittently transmits the power of a vehicle engine or motor to a compressor of a vehicle air conditioner.
- the electromagnetic clutch described in Patent Document 1 is connected to the hub by a rotor that is rotationally driven by the power of the engine and the motor, a hub that is fixed to a drive shaft of the compressor, and a plurality of leaf springs.
- an armature plate disposed to face the rotor, and an electromagnetic coil unit that magnetically attracts the rotor and the armature plate when power is supplied to the electromagnetic coil.
- the rotor is rotatably supported on the outer peripheral surface of the compressor housing via a bearing (rotor bearing).
- the hub and the armature plate are connected by the plurality of leaf springs, and a relative displacement between the hub and the armature plate in the radial direction of the drive shaft is generated. Almost unacceptable. For this reason, the load acting on the rotor bearing may greatly fluctuate due to the displacement of the drive shaft or the inclination of the drive shaft. Further, it can be said that the internal vibration of the compressor is easily transmitted to the housing of the compressor.
- the vibration of the compressor and the noise associated therewith increase. Is desired.
- This is not limited to the electromagnetic clutch that intermittently transmits the power of the drive source to the compressor, but is also common to the electromagnetic clutch that intermittently transmits the power of the drive source to a driven device other than the compressor. To do.
- an object of the present invention is to provide an electromagnetic clutch capable of suppressing the load acting on the rotor bearing from fluctuating and the internal vibration of the driven device from being transmitted to the housing of the driven device.
- the electromagnetic clutch that intermittently transmits the power of the drive source to the driven device is rotatably attached to the housing of the driven device via a bearing and is driven to rotate by the power of the drive source.
- An electromagnet that is magnetically attracted to the rotor, and the connecting member is made of an elastic wire.
- the hub and the armature plate are connected by the connecting member formed of an elastic wire. For this reason, the relative displacement between the hub and the armature plate can be allowed not only in the axial direction of the drive shaft but also in the radial direction of the drive shaft. Therefore, even when, for example, the displacement of the drive shaft or the inclination of the drive shaft occurs, fluctuations in the load acting on the bearing are absorbed and suppressed.
- vibration transmission between the hub and the armature plate is reduced as compared with the conventional art, it is possible to suppress internal vibration of the driven device from being transmitted to the housing of the driven device. As a result, the vibration of the driven device and the accompanying noise are reduced.
- FIG. 1 is a cross-sectional view showing an attached state of an electromagnetic clutch 1 according to an embodiment of the present invention
- FIG. 2 is a front view of the electromagnetic clutch 1
- FIG. 3 is a side view of the electromagnetic clutch 1. .
- the electromagnetic clutch 1 is attached to, for example, a compressor 50 that constitutes a vehicle air conditioner, and power of a vehicle engine or a motor (both not shown) as a drive source is supplied to a compressor 50 as a driven device. It is configured to transmit intermittently. That is, the electromagnetic clutch 1 can transmit the power of the engine or the motor to the compressor 50, or can interrupt the transmission of power from the engine or the motor to the compressor 50.
- the compressor 50 operates when power from the engine and the motor is transmitted, and stops operating when power transmission from the engine and the motor is interrupted.
- the electromagnetic clutch 1 includes a rotor 2 rotatably attached to a housing 51 of a compressor 50 via a bearing 10, a hub 3 fixed to a drive shaft 52 of the compressor 50, and an armature disposed to face the rotor 2. It includes a plate 4, a connecting member 5 that connects the hub 3 and the armature plate 4, and an electromagnet 6 accommodated in the rotor 2.
- the rotor 2 is rotationally driven by the power of the engine and the motor.
- the rotor 2 is formed in a bottomed annular cylindrical shape, and includes an inner cylindrical portion 21, an outer cylindrical portion 22 concentrically disposed outside the inner cylindrical portion 21, and an inner cylindrical portion. And an annular plate-like connecting portion 23 for connecting the outer cylindrical portion 21 and the outer cylindrical portion 22 at one end side.
- the inner cylindrical portion 21 constitutes the inner peripheral surface of the rotor 2
- the outer cylindrical portion 22 constitutes the outer peripheral surface of the rotor 2
- the connecting portion 23 constitutes an attracting surface on which the armature plate 4 is magnetically attracted. To do.
- the housing 51 of the compressor 50 has the protrusion part 52a which protruded in the cylinder shape, and the drive shaft 52 of the compressor 50 is penetrated inside the protrusion part 52a.
- the inner cylindrical portion 21 constituting the inner peripheral surface is attached to the outer peripheral surface of the protruding portion 52 a of the housing 51 via the bearing 10.
- a belt groove 22a is formed in the outer cylindrical portion 22 constituting the outer peripheral surface of the rotor 2, and a driving belt (not shown) is attached. Then, the rotor 2 is rotated by transmitting the power of the engine and the motor to the outer cylindrical portion 22 via the drive belt.
- the electromagnet 6 is accommodated in the internal space of the rotor 2 formed by the inner cylindrical portion 21, the outer cylindrical portion 22 and the connecting portion 23.
- the hub 3 rotates integrally with the drive shaft 52 of the compressor 50.
- the hub 3 includes a cylindrical portion 31 and a flange portion 32 provided on one end side of the cylindrical portion 31.
- the hub 3 is fixed to the drive shaft 52 by the fastening member 11 in a state in which the cylindrical portion 31 is, for example, spline-fitted to the end portion of the drive shaft 52 exposed in the protruding portion 52 a of the housing 51.
- the armature plate 4 is made of a magnetic material and is formed in an annular shape so as to correspond to the connecting portion 23 of the rotor 2 constituting the attraction surface.
- the armature plate 4 is formed so as to surround the periphery of the hub 3, and a predetermined gap g1 is formed between the inner peripheral surface of the armature plate 4 and the outer peripheral surface of the hub 3 corresponding thereto. Yes. Further, the armature plate 4 is disposed to face the connecting portion 23 of the rotor 2 constituting the suction surface with a predetermined gap g2.
- the connecting member 5 connects the hub 3 and the armature plate 4 so that power can be transmitted between the hub 3 and the armature plate 4.
- the connecting member 5 is made of an elastic wire, and is stretched between the flange portion 32 of the hub 3 and the armature plate 4 while being stretched with a predetermined tension.
- the connection member 5 is formed in a closed loop shape by one elastic wire, and is disposed in parallel to the connection portion 23 of the rotor 2 constituting the suction surface.
- the connection member 5 may be formed by connecting the both ends of the elastic wire cut
- a plurality in which the connecting member 5 is hooked on the outer surface (surface opposite to the cylindrical portion 31) of the flange portion 32 of the hub 3 (see FIG. 2).
- six first latching portions 33 are provided.
- the plurality of first latching portions 33 are arranged in the vicinity of the peripheral portion on the outer surface of the flange portion 32 of the hub 3 with a predetermined interval along the rotation direction of the drive shaft 52.
- a plurality of second latching portions 41 (the same number as the first latching portions 33) on which the connecting member 5 is latched are provided on the outer surface of the armature plate 4 (surface opposite to the surface on the rotor 2 side). Is provided.
- the plurality of second latching portions 41 are disposed on the outer surface of the armature plate 4 at a predetermined interval along the rotational direction of the drive shaft 52.
- locking part 33 is arrange
- hanging part 41 is two adjacent 1st latches. It arrange
- the distance to the latching position of the connecting member 5 in the stopper 41 is set to be the same.
- the connecting member 5 is alternately latched to the first latching portion 33 of the hub 3 and the second latching portion 41 of the armature plate 4.
- the connecting members 5 hooked to the plurality of first hooking portions 33 and the plurality of second hooking portions 41 are parallel to the suction surface (the connecting portion 23 of the rotor 2) (see FIGS. 1 and 3), It has a star shape (here hexagonal star shape) (see FIG. 2). Further, the armature plate 4 is held by the connecting member 5 in a state of being separated from the suction surface (the connecting portion 23 of the rotor 2) (a state having a gap g2 between the suction surface). That is, the connecting member 5 has a function of holding the armature plate 4 away from the rotor 2.
- the electromagnet 6 magnetically attracts the armature plate 4 to the attracting surface (the connecting portion 23 of the rotor 2) by generating magnetic force.
- the electromagnet 6 includes a field core 61 and a coil 62. Similar to the rotor 2, the field core 61 is formed in a bottomed annular cylindrical shape, and the coil 62 is accommodated in the internal space of the field core 61. Preferably, the internal space of the field core 61 is filled with resin after the coil 62 is accommodated.
- the electromagnet 6 is accommodated in the internal space of the rotor 2 in a state where the electromagnet 6 is attached to the housing 51 of the compressor 50 via an attachment plate 63 fixed to the field core 61.
- the electromagnet 6 generates a magnetic force when the coil 62 is energized, and magnetically attracts the armature plate 4 to the attracting surface (the coupling portion 23 of the rotor 2) against the holding force of the coupling member 5.
- the rotor 2 and the armature plate 4 are coupled, and the rotational force of the rotor 2 (that is, the power of the engine and the motor) is transmitted through the armature plate 4, the connecting member 5, and the hub 3. 52, the compressor 50 is operated.
- the hub 3 and the armature plate 4 are connected by a connecting member 5 formed of an elastic wire, and between the hub 3 and the armature plate 4 in the axial direction of the drive shaft 52.
- a connecting member 5 formed of an elastic wire
- relative displacement between the hub 3 and the armature plate 4 in the radial direction of the drive shaft 52 is allowed. For this reason, even when a displacement of the drive shaft 52 or an inclination of the drive shaft 52 occurs, fluctuations in the load acting on the bearing 10 due to absorption of these are suppressed (that is, the load acting on the bearing 10 is stable).
- the hub 3 and the armature plate 4 are connected by the connecting member 5 formed of an elastic wire, vibration transmission between the hub 3 and the armature plate 4 is greatly reduced as compared with the conventional case. . For this reason, it is suppressed that the internal vibration of the compressor 50 is transmitted to the housing 51 of the compressor 50 via the drive shaft 52, the hub 3, the connecting member 5, the armature plate 4, the rotor 2, and the bearing 10.
- the vibration of the compressor 50 and the noise associated therewith are greatly reduced as compared with the conventional one.
Abstract
[Problem] To provide an electromagnetic clutch capable of suppressing fluctuations in a load acting on a rotor bearing, and also suppressing the transmission of internal vibrations from a driven apparatus to the housing of the driven apparatus. [Solution] An electromagnetic clutch (1) includes: a rotor (2) that is rotatably driven by the motive power of a drive source, and is rotatably attached to a housing (51) of a driven apparatus (50) via a bearing (10); a hub (3) that is affixed to a drive shaft (52) of the driven apparatus (50); an armature plate (4) that is connected to the hub (3) by a connecting member (5), and positioned so as to have a gap (g2) interposed between the armature plate (4) and the rotor (2); and an electromagnet (6) that magnetically draws the armature plate (4) toward the rotor (2). The connecting member (5) is formed from an elastic wire.
Description
本発明は、駆動源の動力を従動機器に断続的に伝達する電磁クラッチに関する。
The present invention relates to an electromagnetic clutch that intermittently transmits drive power to a driven device.
特許文献１には、車両のエンジンやモータの動力を車両用空調装置の圧縮機に断続的に伝達する電磁クラッチが記載されている。特許文献１に記載された電磁クラッチは、前記エンジンや前記モータの動力によって回転駆動されるロータと、前記圧縮機の駆動軸に固定されたハブと、複数のリーフスプリングによって前記ハブに連結されると共に前記ロータに対向配置されたアーマチュア板と、電磁コイルに電源が供給されることによって前記ロータと前記アーマチュア板とを磁気吸着させる電磁コイルユニットと、を含む。前記ロータは、軸受（ロータ軸受）を介して前記圧縮機のハウジングの外周面に回転可能に支持されている。
Patent Document 1 describes an electromagnetic clutch that intermittently transmits the power of a vehicle engine or motor to a compressor of a vehicle air conditioner. The electromagnetic clutch described in Patent Document 1 is connected to the hub by a rotor that is rotationally driven by the power of the engine and the motor, a hub that is fixed to a drive shaft of the compressor, and a plurality of leaf springs. And an armature plate disposed to face the rotor, and an electromagnetic coil unit that magnetically attracts the rotor and the armature plate when power is supplied to the electromagnetic coil. The rotor is rotatably supported on the outer peripheral surface of the compressor housing via a bearing (rotor bearing).
特許文献１に記載された電磁クラッチにおいて、前記ハブと前記アーマチュア板とは前記複数のリーフスプリングによって連結されており、前記駆動軸の径方向における前記ハブと前記アーマチュア板との間の相対変位がほとんど許容されない。このため、前記駆動軸の位置ずれや前記駆動軸の傾きなどによって、前記ロータ軸受に作用する荷重が大きく変動するおそれがある。また、前記圧縮機の内部振動が前記圧縮機のハウジングに伝達され易いと言える。
In the electromagnetic clutch described in Patent Document 1, the hub and the armature plate are connected by the plurality of leaf springs, and a relative displacement between the hub and the armature plate in the radial direction of the drive shaft is generated. Almost unacceptable. For this reason, the load acting on the rotor bearing may greatly fluctuate due to the displacement of the drive shaft or the inclination of the drive shaft. Further, it can be said that the internal vibration of the compressor is easily transmitted to the housing of the compressor.
前記ロータ軸受に作用する荷重が変動したり、前記圧縮機の内部振動が前記圧縮機のハウジングに伝達されたりすると、前記圧縮機の振動及びこれに伴う騒音が増加するため、これらを抑制することが望まれる。なお、このことは、駆動源の動力を圧縮機に断続的に伝達する電磁クラッチに限られるものではなく、駆動源の動力を圧縮機以外の従動機器に断続的に伝達する電磁クラッチにも共通するものである。
If the load acting on the rotor bearing fluctuates or the internal vibration of the compressor is transmitted to the housing of the compressor, the vibration of the compressor and the noise associated therewith increase. Is desired. This is not limited to the electromagnetic clutch that intermittently transmits the power of the drive source to the compressor, but is also common to the electromagnetic clutch that intermittently transmits the power of the drive source to a driven device other than the compressor. To do.
そこで、本発明は、前記ロータ軸受に作用する荷重が変動したり、前記従動機器の内部振動が前記従動機器のハウジングに伝達されたりすることを抑制できる電磁クラッチを提供することを目的とする。
Therefore, an object of the present invention is to provide an electromagnetic clutch capable of suppressing the load acting on the rotor bearing from fluctuating and the internal vibration of the driven device from being transmitted to the housing of the driven device.
本発明の一側面によると、駆動源の動力を従動機器に断続的に伝達する電磁クラッチは、前記従動機器のハウジングに軸受を介して回転自在に取り付けられ、前記駆動源の動力によって回転駆動されるロータと、前記従動機器の駆動軸に固定されたハブと、連結部材によって前記ハブに連結されると共に、前記ロータとの間に隙間を有して配置されたアーマチュア板と、前記アーマチュア板を前記ロータに磁気吸着させる電磁石と、を含み、前記連結部材が弾性ワイヤーで構成されている。
According to one aspect of the present invention, the electromagnetic clutch that intermittently transmits the power of the drive source to the driven device is rotatably attached to the housing of the driven device via a bearing and is driven to rotate by the power of the drive source. A rotor fixed to a drive shaft of the driven device, an armature plate connected to the hub by a connecting member and having a gap between the rotor and the armature plate. An electromagnet that is magnetically attracted to the rotor, and the connecting member is made of an elastic wire.
前記電磁クラッチにおいて、前記ハブと前記アーマチュア板は弾性ワイヤーで構成された前記連結部材によって連結されている。このため、前記駆動軸の軸方向はもちろん、前記駆動軸の径方向においても前記ハブと前記アーマチュア板との間の相対変位も許容され得る。したがって、例えば前記駆動軸の位置ずれや前記駆動軸の傾きなどが生じた場合であっても、これらが吸収されて前記軸受に作用する荷重の変動が抑制される。また、前記ハブと前記アーマチュア板との間の振動伝達が従来に比べて低減されるので、前記従動機器の内部振動が前記従動機器のハウジングに伝達されることが抑制される。この結果、前記従動機器の振動やこれに伴う騒音が低減される。
In the electromagnetic clutch, the hub and the armature plate are connected by the connecting member formed of an elastic wire. For this reason, the relative displacement between the hub and the armature plate can be allowed not only in the axial direction of the drive shaft but also in the radial direction of the drive shaft. Therefore, even when, for example, the displacement of the drive shaft or the inclination of the drive shaft occurs, fluctuations in the load acting on the bearing are absorbed and suppressed. In addition, since vibration transmission between the hub and the armature plate is reduced as compared with the conventional art, it is possible to suppress internal vibration of the driven device from being transmitted to the housing of the driven device. As a result, the vibration of the driven device and the accompanying noise are reduced.
以下、添付図面を参照して本発明の実施形態について説明する。図１は、本発明の一実施形態に係る電磁クラッチ１の取り付け状態を示す断面図であり、図２は、電磁クラッチ１の正面図であり、図３は、電磁クラッチ１の側面図である。
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a cross-sectional view showing an attached state of an electromagnetic clutch 1 according to an embodiment of the present invention, FIG. 2 is a front view of the electromagnetic clutch 1, and FIG. 3 is a side view of the electromagnetic clutch 1. .
実施形態に係る電磁クラッチ１は、例えば車両用空調装置を構成する圧縮機５０に取り付けられ、駆動源としての車両のエンジンやモータ（いずれも図示省略）の動力を従動機器としての圧縮機５０に断続的に伝達するように構成されている。すなわち、電磁クラッチ１は、前記エンジンや前記モータの動力を圧縮機５０に伝達したり、前記エンジンや前記モータから圧縮機５０への動力の伝達を遮断したりすることが可能である。圧縮機５０は、前記エンジンや前記モータからの動力が伝達されることによって作動し、前記エンジンや前記モータからの動力の伝達が遮断されるとその作動を停止する。
The electromagnetic clutch 1 according to the embodiment is attached to, for example, a compressor 50 that constitutes a vehicle air conditioner, and power of a vehicle engine or a motor (both not shown) as a drive source is supplied to a compressor 50 as a driven device. It is configured to transmit intermittently. That is, the electromagnetic clutch 1 can transmit the power of the engine or the motor to the compressor 50, or can interrupt the transmission of power from the engine or the motor to the compressor 50. The compressor 50 operates when power from the engine and the motor is transmitted, and stops operating when power transmission from the engine and the motor is interrupted.
電磁クラッチ１は、圧縮機５０のハウジング５１に軸受１０を介して回転自在に取り付けられたロータ２と、圧縮機５０の駆動軸５２に固定されたハブ３と、ロータ２に対向配置されたアーマチュア板４と、ハブ３とアーマチュア板４とを連結する連結部材５と、ロータ２に収容された電磁石６と、を含む。
The electromagnetic clutch 1 includes a rotor 2 rotatably attached to a housing 51 of a compressor 50 via a bearing 10, a hub 3 fixed to a drive shaft 52 of the compressor 50, and an armature disposed to face the rotor 2. It includes a plate 4, a connecting member 5 that connects the hub 3 and the armature plate 4, and an electromagnet 6 accommodated in the rotor 2.
ロータ２は、前記エンジンや前記モータの動力によって回転駆動される。本実施形態において、ロータ２は、有底の円環筒状に形成され、内側筒状部２１と、内側筒状部２１の外側に同心配置された外側筒状部２２と、内側筒状部２１と外側筒状部２２とを一端側で連結する円環板状の連結部２３と、を有する。内側筒状部２１は、ロータ２の内周面を構成し、外側筒状部２２は、ロータ２の外周面を構成し、連結部２３は、アーマチュア板４が磁気吸着される吸着面を構成する。また、圧縮機５０のハウジング５１は、筒状に突出した突出部５２ａを有し、突出部５２ａの内側には圧縮機５０の駆動軸５２が挿通されている。ロータ２は、前記内周面を構成する内側筒状部２１がハウジング５１の突出部５２ａの外周面に軸受１０を介して取り付けられている。ロータ２の前記外周面を構成する外側筒状部２２には、ベルト溝２２ａが形成されており、図示省略の駆動ベルトが取り付けられる。そして、前記エンジンや前記モータの動力が前記駆動ベルトを介して外側筒状部２２に伝達されることによってロータ２が回転する。なお、電磁石６は、内側筒状部２１、外側筒状部２２および連結部２３で形成されるロータ２の内部空間に収容される。
The rotor 2 is rotationally driven by the power of the engine and the motor. In the present embodiment, the rotor 2 is formed in a bottomed annular cylindrical shape, and includes an inner cylindrical portion 21, an outer cylindrical portion 22 concentrically disposed outside the inner cylindrical portion 21, and an inner cylindrical portion. And an annular plate-like connecting portion 23 for connecting the outer cylindrical portion 21 and the outer cylindrical portion 22 at one end side. The inner cylindrical portion 21 constitutes the inner peripheral surface of the rotor 2, the outer cylindrical portion 22 constitutes the outer peripheral surface of the rotor 2, and the connecting portion 23 constitutes an attracting surface on which the armature plate 4 is magnetically attracted. To do. Moreover, the housing 51 of the compressor 50 has the protrusion part 52a which protruded in the cylinder shape, and the drive shaft 52 of the compressor 50 is penetrated inside the protrusion part 52a. In the rotor 2, the inner cylindrical portion 21 constituting the inner peripheral surface is attached to the outer peripheral surface of the protruding portion 52 a of the housing 51 via the bearing 10. A belt groove 22a is formed in the outer cylindrical portion 22 constituting the outer peripheral surface of the rotor 2, and a driving belt (not shown) is attached. Then, the rotor 2 is rotated by transmitting the power of the engine and the motor to the outer cylindrical portion 22 via the drive belt. The electromagnet 6 is accommodated in the internal space of the rotor 2 formed by the inner cylindrical portion 21, the outer cylindrical portion 22 and the connecting portion 23.
ハブ３は、圧縮機５０の駆動軸５２と一体的に回転する。本実施形態において、ハブ３は、円筒部３１と、円筒部３１の一端側に設けられたフランジ部３２と、を有している。そして、ハブ３は、円筒部３１がハウジング５１の突出部５２ａ内に露出する駆動軸５２の端部に例えばスプライン嵌合された状態で、締結部材１１によって駆動軸５２に固定されている。
The hub 3 rotates integrally with the drive shaft 52 of the compressor 50. In the present embodiment, the hub 3 includes a cylindrical portion 31 and a flange portion 32 provided on one end side of the cylindrical portion 31. The hub 3 is fixed to the drive shaft 52 by the fastening member 11 in a state in which the cylindrical portion 31 is, for example, spline-fitted to the end portion of the drive shaft 52 exposed in the protruding portion 52 a of the housing 51.
アーマチュア板４は、磁性材からなり、前記吸着面を構成するロータ２の連結部２３に対応するように円環状に形成されている。アーマチュア板４は、ハブ３の周囲を囲むように形成されており、アーマチュア板４の内周面と、これに対応するハブ３の外周面との間には、所定の隙間ｇ１が形成されている。また、アーマチュア板４は、前記吸着面を構成するロータ２の連結部２３に所定の隙間ｇ２を有して対向配置される。
The armature plate 4 is made of a magnetic material and is formed in an annular shape so as to correspond to the connecting portion 23 of the rotor 2 constituting the attraction surface. The armature plate 4 is formed so as to surround the periphery of the hub 3, and a predetermined gap g1 is formed between the inner peripheral surface of the armature plate 4 and the outer peripheral surface of the hub 3 corresponding thereto. Yes. Further, the armature plate 4 is disposed to face the connecting portion 23 of the rotor 2 constituting the suction surface with a predetermined gap g2.
連結部材５は、ハブ３とアーマチュア板４とを連結してハブ３とアーマチュア板４との間で動力の伝達を可能にする。連結部材５は、弾性ワイヤーで構成され、所定の張力で張られた状態でハブ３のフランジ部３２とアーマチュア板４とに架設されている。本実施形態において、連結部材５は、一つの弾性ワイヤーによって閉ループ状に形成され、前記吸着面を構成するロータ２の連結部２３に平行に配置されている。特に制限されるものではないが、例えば所定の長さに切断された弾性ワイヤーの両端部を溶接などによって連結することによって連結部材５が形成され得る。なお、前記弾性ワイヤーの材質や線径は、圧縮機５０のトルクなどに応じて適宜選択され得る。そして、連結部材５は、駆動軸５２の回転方向（＝ハブ３の周方向、アーマチュア板４の周方向）における複数箇所でハブ３のフランジ部３２とアーマチュア板４とに架け渡されている。
The connecting member 5 connects the hub 3 and the armature plate 4 so that power can be transmitted between the hub 3 and the armature plate 4. The connecting member 5 is made of an elastic wire, and is stretched between the flange portion 32 of the hub 3 and the armature plate 4 while being stretched with a predetermined tension. In this embodiment, the connection member 5 is formed in a closed loop shape by one elastic wire, and is disposed in parallel to the connection portion 23 of the rotor 2 constituting the suction surface. Although it does not restrict | limit in particular, For example, the connection member 5 may be formed by connecting the both ends of the elastic wire cut | disconnected by predetermined length by welding etc. The material and the wire diameter of the elastic wire can be appropriately selected according to the torque of the compressor 50 and the like. The connecting member 5 is bridged between the flange portion 32 of the hub 3 and the armature plate 4 at a plurality of locations in the rotation direction of the drive shaft 52 (= the circumferential direction of the hub 3 and the circumferential direction of the armature plate 4).
具体的には、図２に示されるように、本実施形態において、ハブ３のフランジ部３２の外側面（円筒部３１とは反対側の面）には、連結部材５が掛け止められる複数（ここでは６個）の第１掛止部３３が設けられている。複数の第１掛止部３３は、ハブ３のフランジ部３２の前記外側面上の周縁部近傍に、駆動軸５２の回転方向に沿って所定の間隔をあけて配置されている。また、アーマチュア板４の外側面（ロータ２側の面とは反対側の面）には、連結部材５が掛け止められる複数（第１掛止部３３と同数）の第２掛止部４１が設けられている。複数の第２掛止部４１は、アーマチュア板４の前記外側面上に、駆動軸５２の回転方向に沿って所定の間隔をあけて配設されている。ここで、第１掛止部３３は、隣り合う二つの第２掛止部４１の中央位置に対応する位置となるように配置され、第２掛止部４１は、隣り合う二つの第１掛止部３３の中央位置に対応する位置となるように配置されている。さらに、前記吸着面を構成するロータ２の連結部２３から第１掛止部３３における連結部材５の掛け止め位置までの距離と、前記吸着面を構成するロータ２の連結部２３から第２掛止部４１における連結部材５の掛け止め位置までの距離とが同じになるように設定されている。そして、連結部材５は、ハブ３の第１掛止部３３とアーマチュア板４の第２掛止部４１とに交互に掛け止められている。
Specifically, as shown in FIG. 2, in the present embodiment, a plurality (in which the connecting member 5 is hooked on the outer surface (surface opposite to the cylindrical portion 31) of the flange portion 32 of the hub 3 (see FIG. 2). Here, six first latching portions 33 are provided. The plurality of first latching portions 33 are arranged in the vicinity of the peripheral portion on the outer surface of the flange portion 32 of the hub 3 with a predetermined interval along the rotation direction of the drive shaft 52. A plurality of second latching portions 41 (the same number as the first latching portions 33) on which the connecting member 5 is latched are provided on the outer surface of the armature plate 4 (surface opposite to the surface on the rotor 2 side). Is provided. The plurality of second latching portions 41 are disposed on the outer surface of the armature plate 4 at a predetermined interval along the rotational direction of the drive shaft 52. Here, the 1st latching | locking part 33 is arrange | positioned so that it may become a position corresponding to the center position of the 2nd 2nd latching | locking part 41 adjacent, and the 2nd latching | hanging part 41 is two adjacent 1st latches. It arrange | positions so that it may become a position corresponding to the center position of the stop part 33. FIG. Further, the distance from the connecting portion 23 of the rotor 2 constituting the suction surface to the hooking position of the connecting member 5 in the first hooking portion 33 and the second hooking portion from the connecting portion 23 of the rotor 2 constituting the suction surface. The distance to the latching position of the connecting member 5 in the stopper 41 is set to be the same. The connecting member 5 is alternately latched to the first latching portion 33 of the hub 3 and the second latching portion 41 of the armature plate 4.
複数の第１掛止部３３及び複数の第２掛止部４１に掛け止められた連結部材５は、前記吸着面（ロータ２の連結部２３）に平行であり（図１、３参照）、星形（ここでは六角星形）をなしている（図２参照）。また、アーマチュア板４は、連結部材５によって前記吸着面（ロータ２の連結部２３）から離れた状態（前記吸着面との間に隙間ｇ２を有した状態）に保持される。つまり、連結部材５は、アーマチュア板４をロータ２から離れた状態に保持する機能を有している。
The connecting members 5 hooked to the plurality of first hooking portions 33 and the plurality of second hooking portions 41 are parallel to the suction surface (the connecting portion 23 of the rotor 2) (see FIGS. 1 and 3), It has a star shape (here hexagonal star shape) (see FIG. 2). Further, the armature plate 4 is held by the connecting member 5 in a state of being separated from the suction surface (the connecting portion 23 of the rotor 2) (a state having a gap g2 between the suction surface). That is, the connecting member 5 has a function of holding the armature plate 4 away from the rotor 2.
電磁石６は、磁力を発生することによってアーマチュア板４を前記吸着面（ロータ２の連結部２３）に磁気吸着させる。本実施形態において、電磁石６は、フィールドコア６１と、コイル６２と、を含む。フィールドコア６１は、ロータ２と同様に、有底の円環筒状に形成され、コイル６２は、フィールドコア６１の内部空間に収容されている。好ましくは、フィールドコア６１の前記内部空間には、コイル６２が収容された後に樹脂が充填される。そして、電磁石６は、フィールドコア６１に固定された取付板６３を介して圧縮機５０のハウジング５１に取り付けられた状態で、ロータ２の前記内部空間に収容されている。
The electromagnet 6 magnetically attracts the armature plate 4 to the attracting surface (the connecting portion 23 of the rotor 2) by generating magnetic force. In the present embodiment, the electromagnet 6 includes a field core 61 and a coil 62. Similar to the rotor 2, the field core 61 is formed in a bottomed annular cylindrical shape, and the coil 62 is accommodated in the internal space of the field core 61. Preferably, the internal space of the field core 61 is filled with resin after the coil 62 is accommodated. The electromagnet 6 is accommodated in the internal space of the rotor 2 in a state where the electromagnet 6 is attached to the housing 51 of the compressor 50 via an attachment plate 63 fixed to the field core 61.
電磁石６は、コイル６２が通電されると磁力を発生し、連結部材５の保持力に抗してアーマチュア板４を前記吸着面（ロータ２の連結部２３）に磁気吸着させる。これにより、ロータ２とアーマチュア板４とが結合され、ロータ２の回転力（すなわち、前記エンジンや前記モータの動力）がアーマチュア板４、連結部材５及びハブ３を介して圧縮機５０の駆動軸５２に伝達されて圧縮機５０が作動する。
The electromagnet 6 generates a magnetic force when the coil 62 is energized, and magnetically attracts the armature plate 4 to the attracting surface (the coupling portion 23 of the rotor 2) against the holding force of the coupling member 5. As a result, the rotor 2 and the armature plate 4 are coupled, and the rotational force of the rotor 2 (that is, the power of the engine and the motor) is transmitted through the armature plate 4, the connecting member 5, and the hub 3. 52, the compressor 50 is operated.
一方、コイル６２の通電が停止されると、連結部材５の復元力によってアーマチュア板４が前記吸着面（ロータ２の連結部２３）から離れる。これにより、ロータ２の回転力の圧縮機５０の駆動軸５２への伝達が遮断されて圧縮機５０は停止する。
On the other hand, when the energization of the coil 62 is stopped, the armature plate 4 is separated from the suction surface (the connecting portion 23 of the rotor 2) by the restoring force of the connecting member 5. Thereby, transmission of the rotational force of the rotor 2 to the drive shaft 52 of the compressor 50 is interrupted, and the compressor 50 stops.
本実施形態に係る電磁クラッチ１において、ハブ３とアーマチュア板４とは弾性ワイヤーで構成された連結部材５によって連結されており、駆動軸５２の軸方向におけるハブ３とアーマチュア板４との間の相対変位はもちろん、駆動軸５２の径方向におけるハブ３とアーマチュア板４との間の相対変位も許容される。このため、駆動軸５２の位置ずれや駆動軸５２の傾きなどが生じた場合でも、これらが吸収されて軸受１０に作用する荷重の変動が抑制される（すなわち、軸受１０に作用する荷重が安定化される）。
In the electromagnetic clutch 1 according to the present embodiment, the hub 3 and the armature plate 4 are connected by a connecting member 5 formed of an elastic wire, and between the hub 3 and the armature plate 4 in the axial direction of the drive shaft 52. Of course, relative displacement between the hub 3 and the armature plate 4 in the radial direction of the drive shaft 52 is allowed. For this reason, even when a displacement of the drive shaft 52 or an inclination of the drive shaft 52 occurs, fluctuations in the load acting on the bearing 10 due to absorption of these are suppressed (that is, the load acting on the bearing 10 is stable). ).
また、ハブ３とアーマチュア板４とが弾性ワイヤーで構成された連結部材５によって連結されていることにより、従来に比べて、ハブ３とアーマチュア板４との間の振動伝達が大幅に低減される。このため、圧縮機５０の内部振動が、駆動軸５２、ハブ３、連結部材５、アーマチュア板４、ロータ２及び軸受１０を介して圧縮機５０のハウジング５１に伝達されることが抑制される。
Further, since the hub 3 and the armature plate 4 are connected by the connecting member 5 formed of an elastic wire, vibration transmission between the hub 3 and the armature plate 4 is greatly reduced as compared with the conventional case. . For this reason, it is suppressed that the internal vibration of the compressor 50 is transmitted to the housing 51 of the compressor 50 via the drive shaft 52, the hub 3, the connecting member 5, the armature plate 4, the rotor 2, and the bearing 10.
したがって、本実施形態に係る電磁クラッチ１によれば、従来に比べて、圧縮機５０の振動及びこれに伴う騒音が大幅に低減される。
Therefore, according to the electromagnetic clutch 1 according to the present embodiment, the vibration of the compressor 50 and the noise associated therewith are greatly reduced as compared with the conventional one.
以上、本発明の好ましい実施形態について説明したが、本発明は上記実施形態に制限されるものではなく、本発明の技術的思想に基づいて種々の変形及び変更が可能である。
The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments, and various modifications and changes can be made based on the technical idea of the present invention.
１…電磁クラッチ
２…ロータ
３…ハブ
４…アーマチュア板
５…連結部材
６…電磁石
１０…軸受
３３…第１掛止部材
４１…第２掛止部材
５０…圧縮機（従動機器）
５１…圧縮機のハウジング（従動機器のハウジング）
５２…圧縮機の駆動軸（従動機器の駆動軸） DESCRIPTION OFSYMBOLS 1 ... Electromagnetic clutch 2 ... Rotor 3 ... Hub 4 ... Armature plate 5 ... Connecting member 6 ... Electromagnet 10 ... Bearing 33 ... 1st latching member 41 ... 2nd latching member 50 ... Compressor (driven device)
51. Compressor housing (driven device housing)
52. Compressor drive shaft (driven device drive shaft)
２…ロータ
３…ハブ
４…アーマチュア板
５…連結部材
６…電磁石
１０…軸受
３３…第１掛止部材
４１…第２掛止部材
５０…圧縮機（従動機器）
５１…圧縮機のハウジング（従動機器のハウジング）
５２…圧縮機の駆動軸（従動機器の駆動軸） DESCRIPTION OF
51. Compressor housing (driven device housing)
52. Compressor drive shaft (driven device drive shaft)
Claims (4)
- 駆動源の動力を従動機器に断続的に伝達する電磁クラッチであって、
前記従動機器のハウジングに軸受を介して回転自在に取り付けられ、前記駆動源の動力によって回転駆動されるロータと、
前記従動機器の駆動軸に固定されたハブと、
連結部材によって前記ハブに連結されると共に、前記ロータとの間に隙間を有して配置されたアーマチュア板と、
前記アーマチュア板を前記ロータに磁気吸着させる電磁石と、
を含み、
前記連結部材が弾性ワイヤーで構成されている、
電磁クラッチ。 An electromagnetic clutch that intermittently transmits the power of the drive source to the driven device,
A rotor rotatably mounted on a housing of the driven device via a bearing, and rotated by the power of the drive source;
A hub fixed to the drive shaft of the driven device;
An armature plate coupled to the hub by a coupling member and disposed with a gap between the rotor and the rotor;
An electromagnet that magnetically attracts the armature plate to the rotor;
Including
The connecting member is made of an elastic wire,
Electromagnetic clutch. - 前記連結部材は、一つの弾性ワイヤーによって閉ループ状に形成され、前記アーマチュア板が磁気吸着される前記ロータの吸着面に平行に配置されている、請求項１に記載の電磁クラッチ。 The electromagnetic clutch according to claim 1, wherein the connecting member is formed in a closed loop shape by a single elastic wire, and is arranged in parallel to the attracting surface of the rotor on which the armature plate is magnetically attracted.
- 前記連結部材は、前記駆動軸の回転方向における複数箇所で前記ハブと前記アーマチュア板とに架け渡されている、請求項１又は２に記載の電磁クラッチ。 The electromagnetic clutch according to claim 1 or 2, wherein the connecting member is bridged between the hub and the armature plate at a plurality of locations in a rotation direction of the drive shaft.
- 前記ハブは、前記駆動軸の回転方向に沿って間隔をあけて配設されてそれぞれに前記連結部材が掛け止められる複数の第１掛止部を有し、
前記アーマチュア板は、前記駆動軸の回転方向に沿って間隔をあけて配設されてそれぞれに前記連結部材が掛け止められる複数の第２掛止部を有し、
前記連結部材は、前記第１掛止部と前記第２掛止部とに交互に掛け止められている、
請求項１～３のいずれか一つに記載の電磁クラッチ。 The hub has a plurality of first latching portions that are arranged at intervals along the rotational direction of the drive shaft and are latched by the connecting member.
The armature plate has a plurality of second latching portions that are arranged at intervals along the rotation direction of the drive shaft and each latch the latching member.
The connecting member is alternately latched to the first latching portion and the second latching portion,
The electromagnetic clutch according to any one of claims 1 to 3.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-176680 | 2016-09-09 | ||
| JP2016176680A JP2018040477A (en) | 2016-09-09 | 2016-09-09 | Electronic magnetic clutch |
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| Publication Number | Publication Date |
|---|---|
| WO2018047568A1 true WO2018047568A1 (en) | 2018-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2017/028856 WO2018047568A1 (en) | 2016-09-09 | 2017-08-09 | Electromagnetic clutch |
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| Country | Link |
|---|---|
| JP (1) | JP2018040477A (en) |
| WO (1) | WO2018047568A1 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4146121A (en) * | 1977-01-28 | 1979-03-27 | Platt Saco Lowell Limited | Clutch or brake mechanism |
| JPS6075729U (en) * | 1983-10-31 | 1985-05-27 | 小倉クラツチ株式会社 | electromagnetic clutch |
-
2016
- 2016-09-09 JP JP2016176680A patent/JP2018040477A/en active Pending
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2017
- 2017-08-09 WO PCT/JP2017/028856 patent/WO2018047568A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4146121A (en) * | 1977-01-28 | 1979-03-27 | Platt Saco Lowell Limited | Clutch or brake mechanism |
| JPS6075729U (en) * | 1983-10-31 | 1985-05-27 | 小倉クラツチ株式会社 | electromagnetic clutch |
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| JP2018040477A (en) | 2018-03-15 |
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