WO2007000863A1 - Embrayage électromagnétique - Google Patents

Embrayage électromagnétique Download PDF

Info

Publication number
WO2007000863A1
WO2007000863A1 PCT/JP2006/310368 JP2006310368W WO2007000863A1 WO 2007000863 A1 WO2007000863 A1 WO 2007000863A1 JP 2006310368 W JP2006310368 W JP 2006310368W WO 2007000863 A1 WO2007000863 A1 WO 2007000863A1
Authority
WO
WIPO (PCT)
Prior art keywords
annular groove
rotor
coil
electromagnetic clutch
housing
Prior art date
Application number
PCT/JP2006/310368
Other languages
English (en)
Japanese (ja)
Inventor
Minoru Ida
Satoshi Ohfuchi
Original Assignee
Sanden Corporation
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sanden Corporation filed Critical Sanden Corporation
Publication of WO2007000863A1 publication Critical patent/WO2007000863A1/fr

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

Definitions

  • the present invention relates to an electromagnetic clutch.
  • a rotor connected to a drive source via a belt and rotatably supported by a housing of a rotating device, a coil housed in a coil housing annular groove formed in the rotor, and extending out of the housing
  • An electromagnetic clutch comprising an armature that is fixed to an end of a main shaft of a rotating device and that is attracted to the bottom wall of the rotor-housing annular groove by a magnetic force generated by a coil and transmits the power of a driving source to the main shaft. It is disclosed in Reference 1 etc.
  • a weight-reducing annular groove is formed at a position radially outward from the coil-accommodating annular groove of the rotor.
  • the inner and outer peripheral walls of the weight reducing annular groove extend in parallel to the rotation center axis of the rotor.
  • Patent Document 1 JP 2001-289177
  • the present invention has been made in view of the above problems, and is connected to a drive source via a belt and rotatably supported by a housing of a rotating device, and in a coil housing annular groove formed in the rotor.
  • Housed coil and rotation extending out of housing And a armature that is fixed to the end of the main shaft of the device and that is attracted to the bottom wall of the rotor coil housing ring by the magnetic force generated by the coil and transmits the power of the drive source to the main shaft.
  • An electromagnetic clutch with a weight-reducing annular groove formed radially outward from the groove, where mud does not accumulate in the weight-reducing annular groove even in an environment where muddy water is trapped. The object is to provide a clutch.
  • a rotor connected to a drive source via a belt and rotatably supported by a housing of a rotating device, and a coil formed on the rotor
  • a weight reducing annular groove is formed in a portion radially outward from the coil receiving annular groove of the rotor, and the outer circumferential wall of the weight reducing annular groove is the rotational center of the rotor.
  • an electromagnetic clutch characterized in that it is inclined in the diameter increasing direction from the bottom of the annular groove toward the open end of the annular groove with respect to the axis.
  • the outer peripheral wall of the weight reducing annular groove is inclined with respect to the rotation center axis of the rotor from the annular groove bottom portion toward the annular groove open end in the diameter increasing direction. Even if muddy water enters the annular groove for weight reduction due to the environment, the muddy water is pushed out toward the annular groove opening end along the inclined outer circumferential wall of the annular groove by the centrifugal force generated by the rotation of the rotor. Groove force is discharged. Therefore, mud does not accumulate in the annular groove. As a result, an increase in the weight of the rotor and a deterioration in the balance of the rotor are prevented.
  • an opening is formed in the bottom wall of the weight reducing annular groove.
  • the muddy water that has entered the weight reducing annular groove is also discharged through the opening formed in the bottom wall of the weight reducing annular groove. Therefore, mud does not accumulate in the annular groove.
  • the outer peripheral wall of the weight reducing annular groove is inclined in the diameter increasing direction from the annular groove bottom to the annular groove open end with respect to the rotation center axis of the rotor. Therefore, even if muddy water enters the annular groove for weight reduction depending on the usage environment, the muddy water is directed toward the annular groove opening end along the inclined outer circumferential wall of the annular groove by the centrifugal force generated by the rotation of the rotor. Extruded, annular groove force is discharged. Therefore, mud does not accumulate in the annular groove. Increase in rotor weight and deterioration in rotor balance are prevented.
  • an oscillating compressor 1 for a vehicle air conditioner includes a main shaft 2, a rotor 3 fixed to the main shaft 2, and a rotor 3 that is inclined with respect to the main shaft 2 and is relatively rotatable.
  • a rocking plate 4 that engages with the rocking plate, a rotation blocking member (not shown) that blocks the rotation of the rocking plate 4, a piston 5 that engages with the rocking plate 4, and a cylinder bore in which the piston 5 is slidably inserted
  • a cylinder block 6 that forms a crank chamber 7 that has a main shaft 2, rotor 3, and swing plate 4, and a front housing 8 that is fixed to one end of the cylinder block 6, a suction hole, and a discharge port.
  • a cylinder head 10 which is fixed to the other end of the cylinder block 6 through a valve plate 9 having a hole and forms a suction chamber 10a and a discharge chamber 10b, and a suction valve (not shown) mounted on the valve plate 9 and a discharge And a valve.
  • the front housing 8, the cylinder block 6, and the cylinder head 10 cooperate to form a housing that houses a compression mechanism including the main shaft 2, the rotor 3, the swing plate 4, the piston 5, and the like.
  • the spindle 2 passes through the boss 8a of the front housing 8 and extends out of the housing!
  • a shaft seal device 11 is disposed in the main shaft penetrating portion of the boss portion 8a.
  • the electromagnetic clutch 12 is attached to the boss 8a.
  • the electromagnetic clutch 12 is connected to a vehicle engine (not shown) via a belt (not shown), and has an annular rotor 12a having a groove-shaped cross section rotatably supported by a boss 8a via a bearing 13, and a rotor 12a.
  • the coil 12c is accommodated in the annular groove 12b formed in the outer wall and fixed to the front housing 8, and the end of the main shaft 2 extending outside the housing is fixed using the nut 14 and the coil 12c is generated.
  • Armature 12e that is attracted to the annular groove bottom wall 12d of the rotor 12a by the magnetic force and transmits the power of the vehicle engine to the main shaft 2.
  • Annular groove for weight reduction 12f on the outer side in the radial direction of the coil accommodating annular groove 12b Is formed.
  • the outer peripheral wall 12f ′ of the weight reducing annular groove 12f has a diameter that increases from the bottom of the annular groove 12f toward the open end of the annular groove 12f with respect to the rotational center axis of the rotor 12a, that is, the central axis X of the main shaft 2. Inclined in the direction.
  • a plurality of openings 12g are formed on the bottom wall of the annular groove 12f at intervals in the circumferential direction.
  • a shallow bottomed cylindrical dust cover 15 is disposed to face the armature 12e.
  • An outer flange 15a formed at the open end of the dust cover 15 and forming the peripheral edge of the dust cover 15 is fixed in contact with the end surface of the rotor 12a.
  • the outer peripheral wall 12f 'of the weight reducing annular groove 12f extends from the bottom of the annular groove 12f toward the open end of the annular groove 12f with respect to the rotation center axis X of the rotor 12a. Even if muddy water enters the weight reducing annular groove 12f depending on the usage environment, the muddy water is circular along the outer circumferential wall 12f 'of the inclined annular groove due to the centrifugal force generated by the rotation of the rotor 12a. Pushed toward the open end of the groove 12f and discharged from the annular groove 12f. Therefore, mud does not accumulate in the annular groove 12f, the weight of the rotor 12a does not increase, and the balance of the mouth 12a does not deteriorate!
  • the present invention is widely applicable to electromagnetic clutches having a weight reducing annular groove.
  • FIG. 1 is a cross-sectional view of a rocking plate compressor provided with an electromagnetic clutch according to an embodiment of the present invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Pulleys (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

Le problème à résoudre dans le cadre de la présente invention est de fournir un embrayage électromagnétique ayant une rainure annulaire destinée à la réduction du poids et formée dans un rotor sur le côté extérieur radial d'une rainure annulaire pour le stockage de bobine ; il doit être capable d'empêcher le dépôt de boue dans la rainure annulaire destinée à la réduction de poids, même dans un environnement où des boues sont projetées sur l'embrayage électromagnétique. Le moyen de résoudre le problème consiste à ce que le présent embrayage électromagnétique contienne un rotor relié à une source de commande via une courroie et qu'il soit soutenu de manière rotative sur le logement d'un dispositif rotatif. Une bobine stockée dans la rainure annulaire de stockage de bobine est formée dans le rotor et une armature fixée à l'extrémité du mandrin du dispositif rotatif se prolongeant vers l'extérieur du logement est attirée vers la paroi inférieure de la rainure annulaire de stockage de bobine du rotor par une force magnétique générée par la bobine et transmettant la puissance de la source de commande au mandrin. La rainure annulaire pour la réduction de poids est formée dans le rotor sur le côté extérieur radial de la rainure annulaire de stockage de bobine et la paroi périphérique extérieure de la rainure annulaire pour la réduction de poids est inclinée dans la direction de l'augmentation du diamètre, de la paroi inférieure de la rainure annulaire vers l'extrémité ouverte de la rainure annulaire relative à l'axe du centre rotatif du rotor.
PCT/JP2006/310368 2005-06-28 2006-05-24 Embrayage électromagnétique WO2007000863A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2005-188148 2005-06-28
JP2005188148A JP2007009943A (ja) 2005-06-28 2005-06-28 電磁クラッチ

Publications (1)

Publication Number Publication Date
WO2007000863A1 true WO2007000863A1 (fr) 2007-01-04

Family

ID=37595120

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2006/310368 WO2007000863A1 (fr) 2005-06-28 2006-05-24 Embrayage électromagnétique

Country Status (2)

Country Link
JP (1) JP2007009943A (fr)
WO (1) WO2007000863A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6290946U (fr) * 1985-11-28 1987-06-10
JPH05506910A (ja) * 1990-04-24 1993-10-07 テスマ　インターナショナル　インコーポレイティド 改良ロータを有した電磁クラッチ
JPH10259864A (ja) * 1997-03-19 1998-09-29 Isuzu Motors Ltd ベルトプーリ
JPH11236959A (ja) * 1998-02-24 1999-08-31 Nippon Isueedo Kk 電磁クラッチ用プーリー及びその製造方法
JP2001173739A (ja) * 1999-12-15 2001-06-26 Unitta Co Ltd ベルトテンショナ用プーリ

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6290946U (fr) * 1985-11-28 1987-06-10
JPH05506910A (ja) * 1990-04-24 1993-10-07 テスマ　インターナショナル　インコーポレイティド 改良ロータを有した電磁クラッチ
JPH10259864A (ja) * 1997-03-19 1998-09-29 Isuzu Motors Ltd ベルトプーリ
JPH11236959A (ja) * 1998-02-24 1999-08-31 Nippon Isueedo Kk 電磁クラッチ用プーリー及びその製造方法
JP2001173739A (ja) * 1999-12-15 2001-06-26 Unitta Co Ltd ベルトテンショナ用プーリ

Also Published As

Publication number Publication date
JP2007009943A (ja) 2007-01-18

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