WO2008004420A1 - Embrayage électromagnétique et procédé de fabrication de celui-ci - Google Patents

Embrayage électromagnétique et procédé de fabrication de celui-ci Download PDF

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Publication number
WO2008004420A1
WO2008004420A1 PCT/JP2007/061996 JP2007061996W WO2008004420A1 WO 2008004420 A1 WO2008004420 A1 WO 2008004420A1 JP 2007061996 W JP2007061996 W JP 2007061996W WO 2008004420 A1 WO2008004420 A1 WO 2008004420A1
Authority
WO
WIPO (PCT)
Prior art keywords
pulley
friction
electromagnetic clutch
friction plate
friction surface
Prior art date
Application number
PCT/JP2007/061996
Other languages
English (en)
Japanese (ja)
Inventor
Masanori Mogi
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 WO2008004420A1 publication Critical patent/WO2008004420A1/fr

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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 for driving an auxiliary machine mounted on, for example, an automobile, and more particularly to an electromagnetic clutch suitable for use in an automobile compressor and a method for manufacturing the same.
  • an electromagnetic clutch for driving various auxiliary machines mounted on an automobile one having a structure as shown in FIG. 3 is known.
  • an electromagnetic clutch 100 as shown in FIG. 3, a pulley 101 to which power from a driving source (for example, an automobile prime mover) is transmitted and rotationally driven, and a friction plate 102 that can be crimped to the pulley 101 are provided.
  • a driving source for example, an automobile prime mover
  • a friction plate 102 that can be crimped to the pulley 101
  • the friction plate 102 When the coil 103 is energized, the friction plate 102 is attracted to the pulley 101 side, and the friction surface 102a of the friction plate 102 is pressed against the friction surface 101a of the pulley 101, so that power from the pulley side is generated. It is transmitted to the friction plate side.
  • Patent Document 1 Japanese Patent Laid-Open No. 8-42602
  • an object of the present invention is to provide an electromagnetic wave capable of adhering a shock absorbing material to the friction surface while preventing the surface treatment layer from being deteriorated, and to reliably suppress the generation of abnormal noise when the friction plate and the pulley are pressed. It is to provide a clutch and a manufacturing method thereof.
  • an electromagnetic clutch according to the present invention includes a pulley that is rotationally driven and a friction plate that can be crimped to the pulley, and the friction surface of the friction plate is pressed against the friction surface of the pulley.
  • an electromagnetic clutch that transmits power from the pulley side to the friction plate side by friction when being attached, at least one member of the pulley and the friction plate has its buffer surface protruding from the friction surface.
  • a cushioning material for reducing the pressure-bonding speed of the friction plate is embedded.
  • a cushioning material that reduces the pressure-bonding speed of the friction plate in a state where its own cushioning surface protrudes from the friction surface in at least one member of the pulley and the friction plate.
  • a mode in which a buffer material is attached to at least one friction surface of a pulley and a friction plate, or a mode in which a groove is formed in at least one friction surface of the pulley and the friction plate, and a buffer material is attached to the groove can be adopted.
  • the buffer material has a material force having porosity.
  • the cushioning material is composed of a material cover having a porosity, it is possible to use the excellent shock absorbing performance of the material, and to more efficiently reduce the above-mentioned crimping speed. Become.
  • the cushioning material is not particularly limited, but a thermosetting resin is particularly preferable. Examples of the thermosetting resin include phenol resin, epoxy resin, unsaturated polyester resin, and bull ester resin.
  • the member in which the cushioning material is embedded can be subjected to a surface treatment by squeezing between the friction surface and the cushioning material.
  • a surface treatment by cationic electrodeposition coating in order to prevent slipping, a predetermined friction coefficient was given by cutting the friction surface after the surface treatment. The cutting process can be omitted because the surface friction coefficient is larger than that of coating.
  • the electromagnetic clutch according to the present invention can be used in a wide range of industrial fields, and is particularly suitable as an electromagnetic clutch for an auxiliary machine for a vehicle, for example, a compressor of an air conditioner.
  • an electromagnetic clutch manufacturing method includes a rotationally driven pulley and a friction plate that can be crimped to the pulley, and the friction surface of the friction plate is pushed.
  • the buffer surface of the pulley is attached to at least one member of the pulley and the friction plate.
  • a buffer material that reduces the pressure-bonding speed of the friction plate is embedded and bonded, and after the bonding, a surface treatment is applied to the embedded buffer material and the friction surface. It consists of the method.
  • a buffer material is embedded in and bonded to a member, and after the buffer material is bonded, a surface treatment is performed over the embedded buffer material and the friction surface. Therefore, even when the surface treatment method is staking, since the buffer material is attached by the induction heating method before the staking, the problem of deterioration of the staking layer by the induction heating method does not occur.
  • the pressure-bonding speed of the friction plate is set to at least one member of the pulley and the friction plate in a state where the buffer surface protrudes from the friction surface. Since the cushioning material to be lowered is buried, when the friction plate collides with the pulley and is pressure-bonded, the friction plate comes into contact with the cushioning material provided on the friction surface side of the pulley, for example. Is reduced. Therefore, it is possible to effectively suppress the generation of abnormal high-frequency noise that occurs when metals are rapidly pressed together.
  • a method of manufacturing an electromagnetic clutch according to the present invention According to the law, at least one member of the pulley and the friction plate is embedded with a buffer material that reduces the pressure-bonding speed of the friction plate in a state where the buffer surface protrudes from the friction surface, and the buffer material is embedded. Later, since the surface treatment is performed over the embedded cushioning material and the friction surface, it is possible to eliminate the possibility of deterioration of the surface treatment layer due to sticking of the cushioning material, and it is possible to adopt the eyelash as the surface treatment.
  • FIG. 1 is a partial cross-sectional view of an electromagnetic clutch according to an embodiment of the present invention.
  • FIG. 2 is an exploded perspective view of a pulley and a buffer material of the electromagnetic clutch shown in FIG.
  • FIG. 3 is a partial cross-sectional view of a conventional electromagnetic clutch.
  • FIG. 1 and FIG. 2 show an electromagnetic clutch according to an embodiment of the present invention, and shows a case where the present invention is applied to a compressor of an automobile air conditioner as an auxiliary machine for an automobile.
  • 1 indicates an electromagnetic clutch.
  • the electromagnetic clutch 1 includes a pulley 2 that is driven to rotate by being transmitted with power from an automobile prime mover (for example, an engine, a motor, etc.) as a drive source, and a friction plate 3 that can be crimped to and separated from the pulley 2.
  • an automobile prime mover for example, an engine, a motor, etc.
  • the friction plate 3 that can be crimped to and separated from the pulley 2.
  • the friction surface 2a of the pulley 2 is provided with a groove 4 extending in the circumferential direction, and an arc-shaped cushioning material 5 is annularly disposed in the groove 4 and attached thereto.
  • the buffer material 5 is formed of a thermosetting resin having a porosity, and is embedded in a state of protruding from the friction surface 2a of the pulley 2 as shown in FIG. Further, the friction surface 2a of the pulley 2 in which the cushioning material 5 is embedded is plated over the friction surface 2a and the cushioning material 5 (that is, the cushioning material 5 having a porosity is also fitted). Is applied in the form of soaking). In FIG. 2, the cushioning material 5 does not display a cross section, but is notched to indicate the cushioning material 5.
  • the cushioning material 5 is embedded and stuck in a groove 4 provided on the friction surface 2a of the pulley 2, and the friction surface 2a of the pulley 2 and The cushioning material 5 is designed to be given a check.
  • an induction heating method can be adopted for the sticking.
  • the friction plate 3 is formed in an annular shape, is connected to the drive shaft 7 side via a leaf spring 6, and is not energized to the coil 8. A gap is formed between 2a and the friction surface 3a of the friction plate 3. In such a state, the power from the drive source is cut off without being transmitted to the drive shaft 7. On the other hand, when the coil 8 is energized, the friction plate 3 is pressed against the pulley 2, and the power from the drive source is transmitted to the drive shaft 7 side.
  • the friction surface 3a of the friction plate 3 collides with the friction surface 2a of the pulley 2 and is pressed, the friction surface 3a
  • the shock absorber 5 comes into contact with the shock absorber 5 provided on the friction surface 2a side of the pulley 2 (Fig. 1 (A)), and the shock absorber 5 is gradually elastically deformed to absorb the impact force of the friction plate 3, thereby increasing the pressure bonding speed. Reduced.
  • the friction surfaces 2a and 3a come into contact with each other while the impact force is absorbed (FIG. 1 (B)). Therefore, the generation of high-frequency noise that occurs when the metal is abruptly crimped is effectively suppressed.
  • the buffer material 5 is not particularly limited, but is preferably a thermosetting resin, particularly preferably a resin.
  • the thermosetting resin include phenol resin, epoxy resin, unsaturated polyester resin, bull ester resin, and the like.
  • the buffer material 5 is embedded in the groove 4 of the friction surface 2a of the pulley 2 and attached by the induction heating method, and the buffer material 5 is embedded after the buffer material 5 is attached. Since the bumper 5 and the friction surface 2a are nailed, the surface treatment layer may have deteriorated due to sticking of the bumper 5 even when the bumper is used as the surface treatment method. Does not occur.
  • the buffer material 5 is attached to the friction surface 2a of the pulley 2 .
  • the buffer material 5 is attached to the friction surface 3a of the friction plate 3. It is also possible to adopt a mode. It is also possible to adopt a mode in which the buffer material 5 is adhered to both the friction surface 2a and the friction surface 3a.
  • the present invention can be widely applied as an electromagnetic clutch for driving an apparatus used in various industrial fields.
  • the present invention is used as an electromagnetic clutch for driving an auxiliary machine mounted on an automobile, especially for an automotive compressor. And suitable.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Pulleys (AREA)

Abstract

L'invention concerne un embrayage électromagnétique et un procédé de fabrication de celui-ci. L'embrayage électromagnétique comporte une poulie entraînée et une plaque de frottement apte à s'engager sous pression avec la poulie. La force est transmise du côté poulie au côté plaque de frottement par un frottement généré lorsqu'une surface de frottement d'une plaque de frottement est engagée sous pression avec une surface de frottement de la poulie. Une matière d'amortissement est noyée dans au moins la poulie ou la plaque de frottement. La matière d'amortissement réduit la vitesse d'engagement de la plaque de frottement avec une surface d'amortissement de la matière d'amortissement se projetant à partir de la surface de frottement de l'un ou l'autre des deux éléments ou de ces deux éléments. Dans l'embrayage électromagnétique et dans le procédé de fabrication de celui-ci, l'apparition d'un bruit généré lorsque la plaque de frottement est pressée contre la poulie peut être éliminée de façon fiable.
PCT/JP2007/061996 2006-07-07 2007-06-14 Embrayage électromagnétique et procédé de fabrication de celui-ci WO2008004420A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006187780A JP2008014444A (ja) 2006-07-07 2006-07-07 電磁クラッチおよびその製造方法
JP2006-187780 2006-07-07

Publications (1)

Publication Number Publication Date
WO2008004420A1 true WO2008004420A1 (fr) 2008-01-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/061996 WO2008004420A1 (fr) 2006-07-07 2007-06-14 Embrayage électromagnétique et procédé de fabrication de celui-ci

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JP (1) JP2008014444A (fr)
WO (1) WO2008004420A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6548941B2 (ja) 2014-08-08 2019-07-24 株式会社ヴァレオジャパン 電磁クラッチ
JP2019138323A (ja) * 2018-02-06 2019-08-22 株式会社デンソー 電磁クラッチ

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06346927A (ja) * 1993-06-07 1994-12-20 Matsushita Electric Ind Co Ltd 電磁クラッチ
JPH11190369A (ja) * 1997-12-26 1999-07-13 Konica Corp クラッチ及び画像形成装置
JP2004044792A (ja) * 2002-05-27 2004-02-12 Halla Climate Control Corp クラッチプーリーの摩擦材接着装置及び接合方法
JP2005180474A (ja) * 2003-12-16 2005-07-07 Sanden Corp 電磁クラッチのプーリ

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06346927A (ja) * 1993-06-07 1994-12-20 Matsushita Electric Ind Co Ltd 電磁クラッチ
JPH11190369A (ja) * 1997-12-26 1999-07-13 Konica Corp クラッチ及び画像形成装置
JP2004044792A (ja) * 2002-05-27 2004-02-12 Halla Climate Control Corp クラッチプーリーの摩擦材接着装置及び接合方法
JP2005180474A (ja) * 2003-12-16 2005-07-07 Sanden Corp 電磁クラッチのプーリ

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Publication number Publication date
JP2008014444A (ja) 2008-01-24

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