WO2019150978A1 - Electromagnetic clutch and method for manufacturing same - Google Patents

Electromagnetic clutch and method for manufacturing same Download PDF

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Publication number
WO2019150978A1
WO2019150978A1 PCT/JP2019/001308 JP2019001308W WO2019150978A1 WO 2019150978 A1 WO2019150978 A1 WO 2019150978A1 JP 2019001308 W JP2019001308 W JP 2019001308W WO 2019150978 A1 WO2019150978 A1 WO 2019150978A1
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WO
WIPO (PCT)
Prior art keywords
terminal
stator
electromagnetic coil
sealing
electromagnetic
Prior art date
Application number
PCT/JP2019/001308
Other languages
French (fr)
Japanese (ja)
Inventor
佳紀 福村
Original Assignee
株式会社デンソー
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Filing date
Publication date
Application filed by 株式会社デンソー filed Critical 株式会社デンソー
Publication of WO2019150978A1 publication Critical patent/WO2019150978A1/en

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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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets

Definitions

  • This disclosure relates to an electromagnetic clutch and a manufacturing method thereof.
  • Patent Document 1 describes an electromagnetic clutch in which a connector housing is formed of a resin molded body that is separate from a sealing portion.
  • the connector housing has terminals disposed therein. This terminal is connected to the conducting wire of the electromagnetic coil.
  • This terminal is a conductive member for electrically connecting the electromagnetic coil to the outside.
  • the sealing unit seals the electromagnetic coil.
  • the sealing portion is made of a resin material.
  • connection structure in which the end of the conductor of the electromagnetic coil is connected to the terminal inside the connector housing.
  • this connection structure it is necessary to expose the end portion of the conducting wire of the electromagnetic coil from the sealing portion when the sealing portion is molded with resin.
  • it is difficult to hold the conducting wire in a part of the mold so that the end portion of the conducting wire is not covered with the sealing portion at the time of resin molding by the injection molding method of the sealing portion.
  • high-pressure resin is injected into the mold. The mold is clamped so that the mold is not opened by the high pressure resin.
  • the present disclosure aims to provide an electromagnetic clutch capable of resin molding by an injection molding method of a sealing portion and a method for manufacturing the electromagnetic clutch.
  • the electromagnetic clutch An electromagnetic coil that generates an electromagnetic attractive force when energized; A rotor that rotates by receiving a rotational driving force from a driving source; An armature that is connected to the rotor by electromagnetic attraction when the electromagnetic coil is energized and is disconnected from the rotor when the electromagnetic coil is de-energized; A stator housed in a rotor and holding an electromagnetic coil; A sealing part that is made of a resin material and seals the electromagnetic coil; A connector for electrically connecting the electromagnetic coil to the outside; The connector includes a first terminal that is electrically connected to the electromagnetic coil, a second terminal that is configured separately from the first terminal and is electrically connected to the first terminal, and a connector housing that covers the second terminal Including
  • the connector housing is composed of a resin material, and is configured as a separate body from the sealing portion.
  • the first terminal has a connection portion connected to the conductor of the electromagnetic coil, and a second terminal connection portion connected to the connection portion and electrically connected to the second terminal,
  • the connection part is sealed in the sealing part,
  • the second terminal connection portion is exposed from the sealing portion, and the portion of the second terminal connection portion exposed from the sealing portion is made of a conductive member having higher compressive strength than the conductor of the electromagnetic coil. ing.
  • the sealing portion is molded so that the conductive wire of the electromagnetic coil exists inside the sealing portion. For this reason, it is not necessary to hold
  • the sealing portion is formed so that the second terminal connection portion of the first terminal is exposed from the sealing portion. For this reason, at the time of resin formation by the injection molding method of the sealing portion, a portion of the second terminal connection portion exposed from the sealing portion is sandwiched by a part of the mold.
  • the part exposed from the sealing part in the second terminal connection part is composed of a conductive member having higher strength than the conductor of the electromagnetic coil. Thereby, destruction of the 2nd terminal connection part by the force which clamps a type
  • the manufacturing method of the electromagnetic clutch is: Assembling the electromagnetic coil to the stator, Assembling the first terminal in a state before the conducting wire and the connecting portion are connected to the stator; After assembling the electromagnetic coil and the first terminal to the stator, connecting the conducting wire and the connecting portion; Bending the first terminal after connecting the conducting wire and the connecting portion; After bending the first terminal, forming a sealing portion by resin molding in an injection molding method; After forming the sealing portion, assembling the connector housing in which the second terminal is disposed in the stator, In assembling the first terminal to the stator, the first terminal is arranged outside the cylindrical portion in the radial direction of the cylindrical portion, and the connecting portion is outside the range between both ends of the stator in the axial direction of the rotation axis.
  • the conducting wire and the connecting portion In connecting the conducting wire and the connecting portion, in a state where the connecting portion is disposed outside the range, the conducting wire and the connecting portion are connected, In bending the first terminal, the first terminal is bent so that the connection portion is disposed within the range, In forming the sealing portion, the sealing portion is formed such that the connection portion is sealed by the sealing portion and the second terminal connection portion is exposed from the sealing portion.
  • the same effect as one aspect of the present disclosure described above is obtained. Furthermore, according to this, since the conducting wire and the connecting portion are connected in a state where the connecting portion protrudes from the stator in the axial direction, the connecting is easy. Then, by bending the first terminal after connection, the connection portion does not protrude from the stator in the axial direction. For this reason, the protrusion amount of the connector from the stator in the axial direction of the rotation axis of the rotor can be suppressed to be small. Therefore, an increase in the length in the axial direction of the rotation axis of the rotor of the entire product to which the electromagnetic clutch is attached can be suppressed.
  • FIG. 2 is a rear view of the upper half of the electromagnetic clutch of FIG. 1 as viewed from one side in the axial direction.
  • FIG. 3 is a sectional view taken along line III-III in FIG. 2. It is a figure corresponding to FIG. 2, Comprising: It is a figure which shows the electromagnetic clutch and connector housing before the assembly
  • FIG. 5 is a view showing a cross section taken along line VV in FIG. 4 and a cross section of the connector housing. It is a figure corresponding to FIG. 2, Comprising: It is a figure which shows the manufacturing process of an electromagnetic clutch. It is the VII-VII sectional view taken on the line in FIG.
  • FIG. 9 is a cross-sectional view taken along the line IX-IX in FIG. It is a front view of the 1st terminal in a 1st embodiment. It is a XI arrow line view in FIG. It is a figure which shows the manufacturing process of the electromagnetic clutch following FIG.
  • FIG. 13 is a sectional view taken along line XIII-XIII in FIG. 12.
  • FIG. 15 is a sectional view taken along line XV-XV in FIG. 14. It is a sectional view of a part of the electromagnetic clutch in the second embodiment.
  • FIG. 19 is a view showing a cross section taken along line XIX-XIX in FIG. 18 and a cross section of the connector housing. It is a side view of the 1st terminal in a 2nd embodiment. It is a XXI arrow line view in FIG. It is a XXII arrow line view in FIG. It is sectional drawing of a part of electromagnetic clutch in 3rd Embodiment.
  • the electromagnetic clutch 1 of this embodiment shown in FIG. 1 is used for the compressor of a vehicle air conditioner.
  • the electromagnetic clutch 1 mainly includes an electromagnetic coil 33, a rotor 10, an armature 20, a stator 30, a sealing portion 34, and a connector 40.
  • the electromagnetic coil 33 generates an electromagnetic attractive force when energized.
  • the electromagnetic coil 33 is held by the stator 30.
  • the rotor 10 receives a rotational driving force from a driving source (not shown) and rotates about the rotation axis O1.
  • the drive source is a vehicle engine.
  • the rotor 10 is made of a magnetic material such as low carbon steel.
  • the armature 20 is connected to the rotor 10 by electromagnetic attraction when the electromagnetic coil 33 is energized.
  • the armature 20 is disconnected from the rotor 10 when the electromagnetic coil 33 is not energized.
  • the armature 20 is made of a magnetic material such as low carbon steel.
  • the stator 30 is a non-rotating body.
  • the stator 30 is fixed to a compressor housing (not shown) while being accommodated in the rotor 10.
  • the stator 30 is made of a magnetic material such as low carbon steel.
  • the sealing portion 34 is provided on the stator 30.
  • the sealing unit 34 seals the electromagnetic coil 33.
  • the sealing portion 34 is made of a resin material such as nylon resin.
  • the connector 40 is a component for electrically connecting the electromagnetic coil 33 to the outside.
  • the rotor 10 has a double cylindrical structure having a U-shaped cross section in which one side in the axial direction D1 of the rotation axis O1 is open.
  • One side of the axial direction D1 is an anti-armature side opposite to the armature 20 side.
  • the other side of the axial direction D1 is the armature 20 side.
  • the rotor 10 has an outer cylindrical portion 101, an inner cylindrical portion 102, and a wall portion 103.
  • the outer cylindrical portion 101 has a cylindrical shape centered on the rotation axis O1.
  • the inner cylindrical portion 102 has a cylindrical shape centered on the rotation axis O1.
  • the inner cylindrical portion 102 is located inside the outer cylindrical portion 101.
  • the wall portion 103 extends in a direction orthogonal to the rotation axis O1 so as to connect the other end portions of the outer cylindrical portion 101 and the inner cylindrical portion 102 in the axial direction D1.
  • a V groove 101a on which a V belt (not shown) is hung is formed on the outer peripheral side of the outer cylindrical portion 101.
  • a rotational driving force is transmitted from the engine via the V-belt.
  • An end surface 103 a of the wall 103 facing the armature 20 is a friction surface 103 a of the rotor 10 that comes into contact with the armature 20 when the armature 20 is connected to the rotor 10.
  • the electromagnetic clutch 1 includes a ball bearing 11.
  • the ball bearing 11 is disposed inside the rotor 10. Via the ball bearing 11, the rotor 10 is rotatably fixed to a compressor housing (not shown).
  • the armature 20 has a disk shape with a through hole formed in the center.
  • the rotation axis O1 of the armature 20 coincides with the rotation axis O1 of the rotor 10.
  • the end surface 20 a of the armature 20 facing the rotor 10 is a friction surface 20 a of the armature 20 that contacts the rotor 10 when the armature 20 is connected to the rotor 10.
  • the electromagnetic clutch 1 includes a connecting member 25.
  • the armature 20 is connected to a rotating shaft of a compressor (not shown) via a connecting member 25.
  • the connecting member 25 includes an outer hub 21, an inner hub 22, and a rubber 23.
  • the outer hub 21 is fixed to the armature 20 by rivets 24.
  • the inner hub 22 is fixed to a rotating shaft of a compressor (not shown) by a bolt (not shown).
  • the rubber 23 connects the outer hub 21 and the inner hub 22.
  • the rubber 23 is an elastic member that applies an elastic force to the outer hub 21 in a direction away from the rotor 10. Due to this elastic force, a predetermined gap is formed between the friction surface 103a of the rotor 10 and the friction surface 20a of the armature 20 when the electromagnetic coil 33 is not energized.
  • the stator 30 is accommodated between the outer cylindrical portion 101 and the inner cylindrical portion 102 of the rotor 10.
  • the stator 30 has a cylindrical structure with an L-shaped cross section.
  • the stator 30 includes a stator cylindrical portion 301 and a stator wall portion 302.
  • the stator cylindrical portion 301 has a cylindrical shape centered on the rotation axis O ⁇ b> 1 of the rotor 10.
  • the center axis O1 of the stator 30 coincides with the rotation axis O1 of the rotor 10.
  • the stator wall portion 302 extends from one end portion of the stator cylindrical portion 301 in the axial direction D1 toward the outside in the radial direction D2 of the stator cylindrical portion 301.
  • the electromagnetic clutch 1 includes an arm support 31.
  • the arm support 31 is a support member that supports the stator 30.
  • the arm support 31 is configured as a separate body from the stator 30.
  • the stator 30 is fixed to a compressor housing (not shown) via an arm support 31.
  • the arm support 31 has an L-shaped cylindrical structure whose cross-sectional shape is different from that of the stator 30. That is, the arm support 31 has a support cylindrical portion 311 and a support wall portion 312.
  • the support cylindrical portion 311 has a cylindrical shape centered on the rotation axis O ⁇ b> 1 of the rotor 10.
  • the central axis O1 of the arm support 31 coincides with the rotational axis O1 of the rotor 10.
  • the support wall 312 has a disc shape with a through hole formed in the center.
  • the outer end of the support wall 312 in the radial direction D2 is connected to one end of the support cylindrical portion 311 in the axial direction D1.
  • the arm support 31 is made of a magnetic material such as low carbon steel.
  • the arm support 31 is combined with the stator 30 such that the support cylindrical portion 311 is positioned outside the stator cylindrical portion 301 and the stator wall portion 302 in the radial direction D2 of the stator cylindrical portion 301.
  • the stator 30 and the support cylindrical portion 311 are accommodated in the rotor 10.
  • the stator cylindrical portion 301 is opposed to the inner cylindrical portion 102 via a gap.
  • the support cylindrical portion 311 faces the outer cylindrical portion 101 with a gap.
  • the support wall 312 is fixed to a compressor housing (not shown).
  • the support wall 312 is formed with an opening 313 for attaching a connector.
  • the electromagnetic clutch 1 includes a spool 32.
  • the spool 32 is a member around which the electromagnetic coil 33 is wound.
  • the spool 32 is made of a resin material.
  • the spool 32 is fixed to the outer peripheral surface of the stator cylindrical portion 301.
  • the stator 30 holds the electromagnetic coil 33 via the spool 32.
  • the spool 32 is sealed by the sealing portion 34 together with the electromagnetic coil 33.
  • the connector 40 includes a first terminal 41, a second terminal 42, and a connector housing 43.
  • the first terminal 41 and the second terminal 42 are conductor members having higher compressive strength than the conducting wire 331 of the electromagnetic coil 33.
  • the connector housing 43 is a resin molded body formed of resin.
  • the first terminal 41 is provided on the stator 30.
  • the first terminal 41 includes a connection part 411, a second terminal connection part 412, and a held part 413.
  • the connection part 411, the 2nd terminal connection part 412, and the to-be-held part 413 are comprised by one continuous member.
  • the second terminal connection portion 412 is connected to the connection portion 411.
  • the connection part 411 is connected to the conducting wire 331 of the electromagnetic coil 33. Accordingly, the first terminal 41 is electrically connected to the conducting wire 331.
  • the second terminal connection portion 412 is electrically connected to the second terminal 42.
  • the second terminal connection portion 412 includes two openings 412 a.
  • the held portion 413 is held by the spool 32 as shown in FIGS.
  • the first terminal 41 is sealed by the sealing portion 34 with the second terminal connection portion 412 exposed.
  • the connection part 411 is sealed by the sealing part 34. Thereby, the first terminal 41 is fixed to the stator 30.
  • the connection part 411 is waterproofed.
  • the connector housing 43 is configured separately from the sealing portion 34.
  • the second terminal 42 is disposed inside the connector housing 43. In other words, the second terminal 42 is covered with the connector housing 43.
  • the second terminal 42 includes a first terminal connection portion 421 that is electrically connected to the first terminal 41 and an external connection portion 422 that is electrically connected to the outside.
  • the first terminal connection portion 421 includes two protrusions 421a.
  • the external connection part 422 is continuous with the first terminal connection part 421.
  • the external connection portion 422 is located on the opposite side of the second terminal 42 from the first terminal connection portion 421.
  • the portion of the connector housing 43 on the second terminal 42 side is disposed in the opening 313 of the arm support 31.
  • Each of the two protrusions 421a of the second terminal 42 shown in FIG. 5 is press-fitted into each of the two openings 412a of the first terminal 41 shown in FIG.
  • the second terminal connection portion 412 of the first terminal 41 and the first terminal connection portion 421 of the second terminal 42 are in pressure contact with each other. That is, the 1st terminal 41 and the 2nd terminal 42 are connected in the state which the stress which mutually presses has arisen.
  • the connector housing 43 is fixed to the stator 30 by caulking and adhesive as shown in FIG.
  • the caulking is performed by the claw portion 314 provided on the support wall portion 312 of the arm support 31 being bent. That is, the connector housing 43 is fixed to the stator 30 by the claw portions 314 that are part of the connector housing 43 holding the connector housing 43.
  • the operation of the electromagnetic clutch 1 of this embodiment will be described.
  • the electromagnetic coil 33 When the electromagnetic coil 33 is energized, the friction surface 20 a of the armature 20 is attracted to the friction surface 103 a of the rotor 10 by the electromagnetic attractive force generated by the electromagnetic coil 33.
  • the armature 20 is connected to the rotor 10.
  • a rotational driving force from an engine (not shown) is transmitted to a compressor (not shown).
  • the assembly process of the spool 32 is performed.
  • the stator 30 and the spool 32 are prepared.
  • a connector assembly 303 is formed on the stator wall 302 of the stator 30.
  • the connector assembly portion 303 is a portion where no member exists in the stator wall portion 302.
  • the spool 32 has a coil holding part 321 and a terminal holding part 322.
  • the coil holding part 321 is a part that holds the electromagnetic coil 33.
  • the coil holding portion 321 is wound with the conducting wire 331 of the electromagnetic coil 33.
  • the terminal holding part 322 is a part that holds the first terminal 41.
  • a groove 322 a is formed in the terminal holding part 322.
  • the spool 32 is assembled to the stator 30 so that the terminal holding portion 322 is positioned on the connector assembling portion 303.
  • the spool 32 is assembled to the stator cylindrical portion 301 from the other side in the axial direction D1. Thereby, the stator 30 to which the spool 32 is fixed is formed.
  • the spool 32 may be insert-molded with respect to the stator 30 instead of assembling the spool 32 to the stator 30. This also forms the stator 30 to which the spool 32 is fixed.
  • the conducting wire 331 is wound around the coil holding portion 321 of the spool 32. Thereby, the electromagnetic coil 33 is assembled to the stator 30.
  • the assembly process of the first terminal 41 is performed.
  • two first terminals 41 having the shapes shown in FIGS.
  • the two first terminals 41 have a symmetrical shape, and the basic shape is the same. For this reason, below, one 1st terminal 41 of the two 1st terminals 41 is demonstrated.
  • the first terminal 41 includes the connection part 411, the second terminal connection part 412, and the held part 413.
  • the connection part 411 shown in FIGS. 10 and 11 is in a state before being connected to the conducting wire 331.
  • the second terminal connection portion 412 and the held portion 413 extend in the vertical direction in the drawing.
  • the connection part 411 is extended in the left-right direction of the figure. That is, the connection part 411 extends in a direction intersecting with the extending directions of the second terminal connection part 412 and the held part 413.
  • the held portion 413 of the first terminal 41 is inserted into the groove 322a of the terminal holding portion 322. Thereby, the first terminal 41 is held by the terminal holding part 322. In this way, the first terminal 41 is assembled to the spool 32.
  • the first terminal 41 is arranged at a position outside the stator cylindrical portion 301 in the radial direction D2 of the stator cylindrical portion 301.
  • the 2nd terminal connection part 412 is arrange
  • the part except the connection part 411 among the 1st terminals 41 is arrange
  • the connecting portion 411 extends from the spool 32 to one side in the axial direction D1.
  • the connecting portion 411 is disposed on one side of the axial direction D1 from the stator 30.
  • the connection part 411 is arrange
  • connection process As shown in FIGS. 8 and 9, the conductor 331 and the connection part 411 are connected in a state where the connection part 411 is arranged outside the range R ⁇ b> 1.
  • the connection is performed by caulking or fusing.
  • a bending process of the first terminal 41 is performed.
  • the portion on the spool 32 side of the connection portion 411 of the first terminal 41 is bent so that the connection portion 411 is disposed in the range R1.
  • the connection part 411 is located in the range R1. That is, all of the first terminals 41 are located in the range R1.
  • the connection part 411 in the state after the bending process is indicated by a solid line
  • the connection part 411 in the state before the bending process is indicated by an alternate long and short dash line.
  • the sealing portion 34 is formed by resin molding using an injection molding method. At this time, the sealing portion 34 is formed so that the portions excluding the second terminal connection portion 412 of the spool 32, the electromagnetic coil 33, and the first terminal 41 are sealed. Thereby, the connection part 411 is sealed by the sealing part 34. The second terminal connection portion 412 is exposed from the sealing portion 34.
  • the stator 30 on which the sealing portion 34 is formed and the arm support 31 are prepared.
  • An opening 313 and a caulking claw 314 are formed in the support wall 312 of the arm support 31.
  • the arm support 31 is assembled to the stator 30 so that the second terminal connection portion 412 is exposed from the opening 313.
  • the connector housing 43 in which the second terminals 42 are arranged is prepared. A part of the connector housing 43 is inserted into the opening 313. At this time, an adhesive (not shown) is applied to a portion of the connector housing 43 to be inserted into the opening 313. An adhesive may be applied to a portion of the sealing portion 34 exposed from the opening 313. Moreover, it may be applied to both the portion of the connector housing 43 that is inserted into the opening 313 and the portion of the sealing portion 34 that is exposed from the opening 313.
  • Each of the two protrusions 421 a of the second terminal 42 shown in FIG. 5 is press-fitted into each of the two openings 412 a of the first terminal 41.
  • the second terminal connection portion 412 of the first terminal 41 and the first terminal connection portion 421 of the second terminal 42 are press-connected.
  • a caulking process is performed.
  • the claw portion 314 of the arm support 31 is bent.
  • the connector housing 43 is mechanically fixed to the stator 30 by the claw portion 314. Further, the connector housing 43 is fixed to the stator 30 also by an adhesive. The gap between the connector housing 43 and the stator 30 is filled with the adhesive. That is, sealing performance is ensured. In this way, the connector housing 43 is fixed to the stator 30.
  • the electromagnetic clutch 1 shown in FIG. 1 is manufactured by assembling the rotor 10, the armature 20, and the stator 30.
  • the connector 40 includes the first terminal 41, the second terminal 42, and the connector housing 43.
  • the connector housing 43 is formed of a resin material and is configured as a separate body from the sealing portion 34.
  • the first terminal 41 includes a connection part 411 connected to the conducting wire 331 of the electromagnetic coil 33, and a second terminal connection part 412 connected to the connection part 411 and electrically connected to the second terminal 42.
  • the connection part 411 is sealed by the sealing part 34.
  • the second terminal connection portion 412 is exposed from the sealing portion 34.
  • the sealing part 34 is molded so that the conducting wire 331 of the electromagnetic coil 33 exists inside the sealing part 34. For this reason, it is not necessary to hold the conducting wire 331 on a part of the mold when forming the resin by the injection molding method of the sealing portion 34.
  • the sealing portion 34 is formed so that the second terminal connection portion 412 of the first terminal 41 is exposed from the sealing portion 34. For this reason, at the time of resin formation by the injection molding method of the sealing part 34, the part exposed from the sealing part 34 among the 2nd terminal connection parts 412 is pinched
  • the entire first terminal 41 is composed of a plate-shaped conductive member.
  • a portion of the second terminal connection portion 412 exposed from the sealing portion 34 is made of a conductive member having a higher compressive strength than the conducting wire 331 of the electromagnetic coil 33.
  • the connector housing 43 is configured as a separate body from the sealing portion 34. For this reason, the design and process up to the assembly of the connector housing 43 can be made common to the specifications of various connectors 40 according to customer requirements. By sharing the configuration other than the connector housing 43 and the second terminal 42, the production cost can be reduced.
  • the compressor housing has an avoidance shape portion for avoiding interference with the connector 40.
  • the length of the avoidance shape portion in the axial direction D1 increases as the protruding amount of the connector 40 from the back surface of the stator 30 increases. For this reason, when the connector housing 43 is configured separately from the sealing portion 34, there is a problem that the length of the entire compressor to which the electromagnetic clutch 1 is attached increases in the axial direction D1.
  • the stator 30 has the stator cylindrical portion 301 centered on the rotation axis O ⁇ b> 1 of the rotor 10.
  • the electromagnetic coil 33 and the first terminal 41 are disposed outside the stator cylindrical portion 301 in the radial direction D2 of the stator cylindrical portion 301. All of the first terminals 41 including the connection part 411 and the second terminal connection part 412 are arranged in a range R1 between both ends of the stator 30 in the axial direction D1.
  • the first terminal 41 does not protrude from the stator 30 in the axial direction D1. For this reason, the protrusion amount of the connector 40 from the stator 30 in the axial direction D1 can be suppressed small. Therefore, the increase in the length in the axial direction D1 of the whole compressor can be suppressed.
  • the method of manufacturing the electromagnetic clutch 1 of the present embodiment includes the assembly process of the electromagnetic coil 33, the assembly process of the first terminal 41, the connection process, and the bending process of the first terminal 41.
  • the sealing process and the assembly process of the connector housing 43 are included.
  • the first terminal 41 is arranged at a position outside the stator cylindrical portion 301 in the radial direction D2 of the stator cylindrical portion 301.
  • the second terminal connection portion 412 is disposed in the range R1 between both ends of the stator 30 in the axial direction D1.
  • the connecting portion 411 is disposed outside the range R1.
  • connection process the conductive wire 331 and the connection part 411 are connected in a state where the connection part 411 is arranged at a position outside the range R1.
  • first terminal 41 In the bending process of the first terminal 41, the first terminal 41 is bent so that the connection part 411 is disposed in the range R1.
  • the sealing portion 34 is formed so that the connection portion 411 is sealed by the sealing portion 34 and the second terminal connection portion 412 is exposed from the sealing portion 34.
  • the conducting wire 331 and the connecting portion 411 are connected in a state where the connecting portion 411 protrudes from the stator 30 in the axial direction D1, it is easy to connect. Then, by bending the first terminal 41 after the connection, the connection portion 411 does not protrude from the stator 30 in the axial direction D1. For this reason, the protrusion amount of the connector 40 from the stator 30 in the axial direction D1 can be suppressed small. Therefore, the increase in the length in the axial direction D1 of the whole compressor can be suppressed.
  • FIG. 17 is a view of a part of the second terminal connection portion 412 and the first terminal connection portion 421 in FIG. 16 as viewed from the upper side of the drawing.
  • the second terminal connecting portion 412 of the first terminal 41 has a tuning fork shape. That is, the 2nd terminal connection part 412 is U-shaped.
  • a slot 412 b is formed in the second terminal connection portion 412.
  • the slot 412b is a space in which a member on the other side of the connection is press-fitted.
  • the slot 412b extends in the axial direction D1 from the tip of the second terminal connection portion 412.
  • the 1st terminal connection part 421 of the 2nd terminal 42 is plate shape.
  • the first terminal connection portion 421 may have a rod shape.
  • the first terminal connection portion 421 of the second terminal 42 is press-fitted into the slot 412b from the distal end side of the second terminal connection portion 412 of the first terminal 41.
  • the second terminal connection portion 412 of the first terminal 41 and the first terminal connection portion 421 of the second terminal 42 are press-connected to each other.
  • the second terminal connection portion 412 of the first terminal 41 is exposed from the sealing portion 34.
  • the connection portion 411 of the first terminal 41 is sealed by the sealing portion 34 as in the first embodiment.
  • All of the first terminals 41 have a plate shape. Therefore, a portion of the second terminal connection portion 412 exposed from the sealing portion 34 is made of a conductive member having a higher compressive strength than the conducting wire 331 of the electromagnetic coil 33. For this reason, the effect (1) described in the first embodiment can also be obtained by the electromagnetic clutch 1 of the present embodiment.
  • connection part 411 of the 1st terminal 41 is arrange
  • the second terminal connection portion 412 of the first terminal 41 protrudes from the stator 30 in the axial direction D1.
  • the second terminal connection portion 412 is connected to the first terminal connection portion 421 of the second terminal 42 inside the connector housing 43. For this reason, the protrusion amount of the connector 40 from the stator 30 in the axial direction D1 can be suppressed small. Therefore, the increase in the length in the axial direction D1 of the whole compressor can be suppressed.
  • the held portion 413 extends in the vertical direction in the figure.
  • Each of the connection part 411 and the 2nd terminal connection part 412 is extended in the left-right direction of the figure. That is, each of the connection part 411 and the second terminal connection part 412 extends in a direction intersecting the extending direction of the held part 413.
  • Other shapes of the first terminal 41 are the same as those in the first embodiment.
  • the shape of the first terminal 41 and the second terminal 42 is different from that of the first embodiment, so that the connection method of the first terminal 41 and the second terminal 42 is the first. Different from the embodiment. Except for the method of connecting the first terminal 41 and the second terminal 42, the method of manufacturing the electromagnetic clutch 1 of the present embodiment is the same as that of the first embodiment. For this reason, also by the manufacturing method of the electromagnetic clutch 1 of this embodiment, the effect (3) described in the first embodiment can be obtained.
  • the stator 30 has a double cylindrical structure having a U-shaped cross section with the other side of the axial direction D1 opened.
  • the stator 30 includes a stator cylindrical portion 301, a stator wall portion 302, and a stator outer cylindrical portion 304.
  • the stator outer cylindrical portion 304 has a cylindrical shape centered on the rotation axis O1.
  • the stator outer cylindrical portion 304 is located outside the stator cylindrical portion 301.
  • the stator outer cylindrical portion 304 faces the outer cylindrical portion 101 of the rotor 10.
  • the stator wall 302 has an opening 305 for attaching a connector.
  • the arm support 31 has a disk shape with a through hole formed in the center.
  • a connector assembly 315 is formed on the arm support 31.
  • the connector assembly portion 315 is a portion where no member exists in the arm support.
  • the connector housing 43 is assembled to the opening 305 and the connector assembly 315.
  • Other configurations of the electromagnetic clutch 1 are the same as those in the first embodiment. For this reason, according to the electromagnetic clutch 1 of this embodiment, the same effect as the electromagnetic clutch 1 of 1st Embodiment is acquired.
  • the electromagnetic coil 33 and the first terminal 41 are assembled to the spool 32.
  • the spool 32 in this state is assembled to the stator 30.
  • Other steps of the method for manufacturing the electromagnetic clutch 1 are the same as those in the first embodiment. For this reason, according to the manufacturing method of the electromagnetic clutch 1 of this embodiment, the same effect as the manufacturing method of the electromagnetic clutch 1 of 1st Embodiment is acquired.
  • the connecting portion 411 is disposed outside the range R1 in the assembly process of the first terminal 41.
  • the first terminal 41 is bent so that the connection portion 411 is disposed in the range R1.
  • the first terminal 41 may be assembled so that the connection part 411 is arranged in the range R1. Also by this, the effect (2) described in the first embodiment can be obtained.
  • all of the first terminals 41 are plate-shaped, but the present invention is not limited to this.
  • the part exposed from the sealing part 34 among the 2nd terminal connection parts 412 should just be plate shape. That is, at least a portion of the second terminal connection portion 412 exposed from the sealing portion 34 only needs to be formed of a conductive member having a higher compressive strength than the conducting wire 331 of the electromagnetic coil 33.
  • the electromagnetic clutch includes an electromagnetic coil, a rotor, an armature, a stator, a sealing portion, and a connector.
  • the connector includes a first terminal connected to the electromagnetic coil, a second terminal configured separately from the first terminal and electrically connected to the first terminal, and a connector housing covering the second terminal. .
  • the connector housing is made of a resin material and is formed as a separate body from the sealing portion.
  • the first terminal includes a connection portion connected to the conductive wire of the electromagnetic coil, and a second terminal connection portion connected to the connection portion and electrically connected to the second terminal.
  • the connection part is sealed by the sealing part.
  • the second terminal connection part is exposed from the sealing part.
  • the part exposed from the sealing part in the second terminal connection part is composed of a conductive member having higher compressive strength than the conductor of the electromagnetic coil.
  • the stator has a cylindrical portion centered on the rotation axis of the rotor.
  • the electromagnetic coil and the first terminal are disposed outside the cylindrical portion in the radial direction of the cylindrical portion.
  • the connection part is arrange
  • the protruding amount of the connector from the stator in the axial direction of the rotation axis of the rotor can be kept small. Therefore, an increase in the length in the axial direction of the rotation axis of the rotor of the entire product to which the electromagnetic clutch is attached can be suppressed.
  • the second terminal connection portion and the second terminal are press-connected to each other. As described above, it is preferable that the first terminal and the second terminal are press-connected.
  • the electromagnetic clutch includes a support member that supports the stator.
  • the connector housing is fixed to the stator by a part of the support member holding the connector housing.
  • the connector housing is fixed to the stator by an adhesive.
  • a method for fixing the connector housing a method using an adhesive can be employed.
  • the electromagnetic coil is assembled to the stator, and the first terminal in a state before the conducting wire and the connecting portion are connected. After assembling to the stator, after assembling the electromagnetic coil and the first terminal to the stator, after connecting the conducting wire and the connecting portion, after connecting the conducting wire and the connecting portion, bending the first terminal, Forming the sealing part by resin molding using an injection molding method after bending the terminal, and assembling the connector housing in which the second terminal is disposed in the stator after forming the sealing part.
  • the first terminal In assembling the first terminal to the stator, the first terminal is arranged outside the cylindrical portion in the radial direction of the cylindrical portion, and the connecting portion is outside the range between both ends of the stator in the axial direction of the rotation axis. Is placed.
  • the conducting wire and the connecting portion In connecting the conducting wire and the connecting portion, the conducting wire and the connecting portion are connected in a state where the connecting portion is disposed outside the range.
  • the first terminal In bending the first terminal, the first terminal is bent so that the connection portion is disposed within the range.
  • the sealing portion In forming the sealing portion, the sealing portion is formed such that the connection portion is sealed by the sealing portion and the second terminal connection portion is exposed from the sealing portion.

Abstract

This electromagnetic clutch comprises an electromagnetic coil (33), a rotor, an armature, a stator (30) that holds the electromagnetic coil, a sealing part (34) that is made of a resin material and seals the electromagnetic coil, and a connector (40). The connector includes a first terminal (41) connected to the electromagnetic coil, a second terminal (42) that is configured as a separate piece from the first terminal and connected to the first terminal, and a connector housing (43) that covers the second terminal. The connector housing is made of a resin material and formed as a separate piece from the sealing part. The first terminal has a wire connecting section (411) connected to the conductor of the electromagnetic coil and a second terminal connecting section (412) that continues from the wire connecting section and is connected to the second terminal. The wire connecting section is sealed by the sealing part. The second terminal connecting section is exposed from the sealing part, and the portion of the second terminal connecting section that is exposed from the sealing part is made of a conductor member having a higher compressive strength than the conductor of the electromagnetic coil.

Description

電磁クラッチおよびその製造方法Electromagnetic clutch and manufacturing method thereof 関連出願への相互参照Cross-reference to related applications
　本出願は、２０１８年２月１日に出願された日本特許出願番号２０１８－１６２６０号に基づくもので、ここにその記載内容が参照により組み入れられる。 This application is based on Japanese Patent Application No. 2018-16260 filed on Feb. 1, 2018, the contents of which are incorporated herein by reference.
　本開示は、電磁クラッチおよびその製造方法に関するものである。 This disclosure relates to an electromagnetic clutch and a manufacturing method thereof.
　特許文献１には、コネクタハウジングが封止部と別体の樹脂成形体で構成された電磁クラッチが記載されている。コネクタハウジングは、その内部に端子が配置されている。この端子は、電磁コイルの導線と接続されている。この端子は、電磁コイルを外部と電気的に接続するための導電部材である。封止部は、電磁コイルを封止する。封止部は、樹脂材料で構成される。 Patent Document 1 describes an electromagnetic clutch in which a connector housing is formed of a resin molded body that is separate from a sealing portion. The connector housing has terminals disposed therein. This terminal is connected to the conducting wire of the electromagnetic coil. This terminal is a conductive member for electrically connecting the electromagnetic coil to the outside. The sealing unit seals the electromagnetic coil. The sealing portion is made of a resin material.
特開平１０－２３１８６０号公報Japanese Patent Laid-Open No. 10-231860
　上記した従来の電磁クラッチでは、電磁コイルの導線の端部が封止部から露出している。電磁コイルの導線の端部と、コネクタハウジングの内部の端子とが接続された接続構造が採用されている。
　この接続構造では、封止部の樹脂成形時に、電磁コイルの導線の端部を封止部から露出させる必要がある。しかし、封止部の射出成形法での樹脂成形時に、導線の端部が封止部に覆われないように、導線を型の一部に保持させることは難しい。射出成形法では、型の内部に高圧の樹脂が射出される。高圧の樹脂によって型が開かないように、型は締め付けられる。導線を封止部から露出させるために、導線を型で挟むと、型を締め付ける力によって、導線が断線する。このため、上記した従来の電磁クラッチでは、生産性が高い射出成形法による封止部の樹脂成形ができないという課題を本発明者が見出した。 In the conventional electromagnetic clutch described above, the end portion of the conducting wire of the electromagnetic coil is exposed from the sealing portion. A connection structure is employed in which the end of the conductor of the electromagnetic coil is connected to the terminal inside the connector housing.
In this connection structure, it is necessary to expose the end portion of the conducting wire of the electromagnetic coil from the sealing portion when the sealing portion is molded with resin. However, it is difficult to hold the conducting wire in a part of the mold so that the end portion of the conducting wire is not covered with the sealing portion at the time of resin molding by the injection molding method of the sealing portion. In the injection molding method, high-pressure resin is injected into the mold. The mold is clamped so that the mold is not opened by the high pressure resin. In order to expose the conducting wire from the sealing portion, when the conducting wire is sandwiched by a mold, the conducting wire is broken by a force for clamping the die. For this reason, this inventor discovered the subject that the above-mentioned conventional electromagnetic clutch cannot perform resin molding of the sealing part by the injection molding method with high productivity.
　本開示は、封止部の射出成形法での樹脂成形が可能な電磁クラッチおよびその製造方法を提供することを目的とする。 The present disclosure aims to provide an electromagnetic clutch capable of resin molding by an injection molding method of a sealing portion and a method for manufacturing the electromagnetic clutch.
　上記目的を達成するため、本開示の１つの観点によれば、
　電磁クラッチは、
　通電時に電磁吸引力を発生する電磁コイルと、
　駆動源からの回転駆動力を受けて回転するロータと、
　電磁コイルの通電時に電磁吸引力によってロータに連結され、電磁コイルの非通電時にロータから切り離されるアーマチュアと、
　ロータに収容され、電磁コイルを保持するステータと、
　樹脂材料で構成され、電磁コイルを封止する封止部と、
　電磁コイルを外部と電気的に接続させるためのコネクタとを備え、
　コネクタは、電磁コイルと電気的に接続された第１端子と、第１端子と別体として構成されるとともに第１端子と電気的に接続された第２端子と、第２端子を覆うコネクタハウジングとを含み、
　コネクタハウジングは、樹脂材料で構成されるとともに、封止部と別体として構成され、
　第１端子は、電磁コイルの導線と結線された結線部と、結線部に連なっているとともに第２端子と電気的に接続された第２端子接続部とを有し、
　結線部は、封止部に封止されており、
　第２端子接続部は、封止部から露出しているとともに、第２端子接続部のうち封止部から露出している部分は、電磁コイルの導線よりも圧縮強度が高い導電部材で構成されている。 In order to achieve the above object, according to one aspect of the present disclosure,
The electromagnetic clutch
An electromagnetic coil that generates an electromagnetic attractive force when energized;
A rotor that rotates by receiving a rotational driving force from a driving source;
An armature that is connected to the rotor by electromagnetic attraction when the electromagnetic coil is energized and is disconnected from the rotor when the electromagnetic coil is de-energized;
A stator housed in a rotor and holding an electromagnetic coil;
A sealing part that is made of a resin material and seals the electromagnetic coil;
A connector for electrically connecting the electromagnetic coil to the outside;
The connector includes a first terminal that is electrically connected to the electromagnetic coil, a second terminal that is configured separately from the first terminal and is electrically connected to the first terminal, and a connector housing that covers the second terminal Including
The connector housing is composed of a resin material, and is configured as a separate body from the sealing portion.
The first terminal has a connection portion connected to the conductor of the electromagnetic coil, and a second terminal connection portion connected to the connection portion and electrically connected to the second terminal,
The connection part is sealed in the sealing part,
The second terminal connection portion is exposed from the sealing portion, and the portion of the second terminal connection portion exposed from the sealing portion is made of a conductive member having higher compressive strength than the conductor of the electromagnetic coil. ing.
　これによれば、封止部の樹脂成形時に、電磁コイルの導線が封止部の内部に存在するように、封止部を成形する。このため、封止部の射出成形法での樹脂形成時に、導線を型の一部に保持させる必要がない。また、これによれば、第１端子の第２端子接続部が封止部から露出した状態となるように、封止部を形成する。このため、封止部の射出成形法での樹脂形成時では、第２端子接続部のうち封止部から露出される部分が型の一部に挟まれる。第２端子接続部のうち封止部から露出される部分は、電磁コイルの導線よりも強度が高い導電部材で構成されている。これにより、封止部の樹脂成形時に、型を締め付ける力による第２端子接続部の破壊を回避することができる。よって、これによれば、封止部の射出成形法での樹脂成形が可能である。 According to this, at the time of resin molding of the sealing portion, the sealing portion is molded so that the conductive wire of the electromagnetic coil exists inside the sealing portion. For this reason, it is not necessary to hold | maintain a conducting wire to a part of type | mold at the time of resin formation by the injection molding method of a sealing part. Also, according to this, the sealing portion is formed so that the second terminal connection portion of the first terminal is exposed from the sealing portion. For this reason, at the time of resin formation by the injection molding method of the sealing portion, a portion of the second terminal connection portion exposed from the sealing portion is sandwiched by a part of the mold. The part exposed from the sealing part in the second terminal connection part is composed of a conductive member having higher strength than the conductor of the electromagnetic coil. Thereby, destruction of the 2nd terminal connection part by the force which clamps a type | mold at the time of resin molding of a sealing part can be avoided. Therefore, according to this, resin molding by the injection molding method of a sealing part is possible.
　本開示の別の観点によれば、
　電磁クラッチの製造方法は、
　電磁コイルをステータに組み付けることと、
　導線と結線部とが結線される前の状態の第１端子をステータに組み付けることと、
　電磁コイルおよび第１端子をステータに組み付けた後に、導線と結線部とを結線することと、
　導線と結線部とを結線した後に、第１端子を折り曲げることと、
　第１端子を折り曲げた後に、射出成形法での樹脂成形によって封止部を形成することと、
　封止部を形成した後に、第２端子が内部に配置されたコネクタハウジングをステータに組み付けることとを含み、
　第１端子をステータに組み付けることにおいては、円筒部よりも円筒部の径方向での外側に第１端子が配置され、回転軸線の軸線方向でのステータの両端の間の範囲の外に結線部が配置され、
　導線と結線部とを結線することにおいては、範囲の外に結線部が配置された状態で、導線と結線部とを結線し、
　第１端子を折り曲げることにおいては、範囲の中に結線部が配置されるように、第１端子を折り曲げ、
　封止部を形成することにおいては、結線部が封止部に封止され、かつ、第２端子接続部が封止部から露出するように、封止部を形成する。 According to another aspect of the disclosure,
The manufacturing method of the electromagnetic clutch is:
Assembling the electromagnetic coil to the stator,
Assembling the first terminal in a state before the conducting wire and the connecting portion are connected to the stator;
After assembling the electromagnetic coil and the first terminal to the stator, connecting the conducting wire and the connecting portion;
Bending the first terminal after connecting the conducting wire and the connecting portion;
After bending the first terminal, forming a sealing portion by resin molding in an injection molding method;
After forming the sealing portion, assembling the connector housing in which the second terminal is disposed in the stator,
In assembling the first terminal to the stator, the first terminal is arranged outside the cylindrical portion in the radial direction of the cylindrical portion, and the connecting portion is outside the range between both ends of the stator in the axial direction of the rotation axis. Is placed,
In connecting the conducting wire and the connecting portion, in a state where the connecting portion is disposed outside the range, the conducting wire and the connecting portion are connected,
In bending the first terminal, the first terminal is bent so that the connection portion is disposed within the range,
In forming the sealing portion, the sealing portion is formed such that the connection portion is sealed by the sealing portion and the second terminal connection portion is exposed from the sealing portion.
　これによれば、上記した本開示の１つの観点と同じ効果を奏する。さらに、これによれば、軸線方向でステータから結線部が突出した状態で、導線と結線部とを結線するので、結線がしやすい。そして、結線後に第１端子を折り曲げることで、結線部は軸線方向でステータから突出していない。このため、ロータの回転軸線の軸線方向でのステータからのコネクタの突出量を小さく抑えることができる。よって、電磁クラッチが取り付けられる製品全体のロータの回転軸線の軸線方向での長さの増大を抑制することができる。 According to this, the same effect as one aspect of the present disclosure described above is obtained. Furthermore, according to this, since the conducting wire and the connecting portion are connected in a state where the connecting portion protrudes from the stator in the axial direction, the connecting is easy. Then, by bending the first terminal after connection, the connection portion does not protrude from the stator in the axial direction. For this reason, the protrusion amount of the connector from the stator in the axial direction of the rotation axis of the rotor can be suppressed to be small. Therefore, an increase in the length in the axial direction of the rotation axis of the rotor of the entire product to which the electromagnetic clutch is attached can be suppressed.
　なお、各構成要素等に付された括弧付きの参照符号は、その構成要素等と後述する実施形態に記載の具体的な構成要素等との対応関係の一例を示すものである。 Note that reference numerals with parentheses attached to each component and the like indicate an example of a correspondence relationship between the component and the like and specific components described in the embodiments described later.
第１実施形態における電磁クラッチの断面図である。It is sectional drawing of the electromagnetic clutch in 1st Embodiment. 軸線方向の一方側から見た図１の電磁クラッチの上側半分の背面図である。FIG. 2 is a rear view of the upper half of the electromagnetic clutch of FIG. 1 as viewed from one side in the axial direction. 図２中のIII－III線断面図である。FIG. 3 is a sectional view taken along line III-III in FIG. 2. 図２に対応する図であって、コネクタハウジングの組付け前の電磁クラッチとコネクタハウジングを示す図である。It is a figure corresponding to FIG. 2, Comprising: It is a figure which shows the electromagnetic clutch and connector housing before the assembly | attachment of a connector housing. 図４中のV－V線断面とコネクタハウジングの断面とを示す図である。FIG. 5 is a view showing a cross section taken along line VV in FIG. 4 and a cross section of the connector housing. 図２に対応する図であって、電磁クラッチの製造工程を示す図である。It is a figure corresponding to FIG. 2, Comprising: It is a figure which shows the manufacturing process of an electromagnetic clutch. 図６中のVII－VII線断面図である。It is the VII-VII sectional view taken on the line in FIG. 図６に続く電磁クラッチの製造工程を示す図である。It is a figure which shows the manufacturing process of the electromagnetic clutch following FIG. 図８中のIX－IX線断面図である。FIG. 9 is a cross-sectional view taken along the line IX-IX in FIG. 第１実施形態における第１端子の正面図である。It is a front view of the 1st terminal in a 1st embodiment. 図１０中のXI矢視図である。It is a XI arrow line view in FIG. 図８に続く電磁クラッチの製造工程を示す図である。It is a figure which shows the manufacturing process of the electromagnetic clutch following FIG. 図１２中のXIII－XIII線断面図である。FIG. 13 is a sectional view taken along line XIII-XIII in FIG. 12. 図１２に続く電磁クラッチの製造工程を示す図である。It is a figure which shows the manufacturing process of the electromagnetic clutch following FIG. 図１４中のXV－XV線断面図である。FIG. 15 is a sectional view taken along line XV-XV in FIG. 14. 第２実施形態における電磁クラッチの一部の断面図である。It is a sectional view of a part of the electromagnetic clutch in the second embodiment. 図１６中の第２端子接続部および第１端子接続部の一部のXVII矢視図である。It is a XVII arrow directional view of a part of 2nd terminal connection part in FIG. 16, and a 1st terminal connection part. 第２実施形態におけるコネクタハウジングの組付け前の電磁クラッチを示す図である。It is a figure which shows the electromagnetic clutch before the assembly | attachment of the connector housing in 2nd Embodiment. 図１８中のXIX－XIX線断面とコネクタハウジングの断面とを示す図である。FIG. 19 is a view showing a cross section taken along line XIX-XIX in FIG. 18 and a cross section of the connector housing. 第２実施形態における第１端子の側面図である。It is a side view of the 1st terminal in a 2nd embodiment. 図２０中のXXI矢視図である。It is a XXI arrow line view in FIG. 図２０中のXXII矢視図である。It is a XXII arrow line view in FIG. 第３実施形態における電磁クラッチの一部の断面図である。It is sectional drawing of a part of electromagnetic clutch in 3rd Embodiment.
　以下、本開示の実施形態について図に基づいて説明する。なお、以下の各実施形態相互において、互いに同一もしくは均等である部分には、同一符号を付して説明を行う。 Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. In the following embodiments, parts that are the same or equivalent to each other will be described with the same reference numerals.
　（第１実施形態）
　図１に示す本実施形態の電磁クラッチ１は、車両用空調装置の圧縮機に用いられる。電磁クラッチ１は、主に、電磁コイル３３と、ロータ１０と、アーマチュア２０と、ステータ３０と、封止部３４と、コネクタ４０とを備える。 (First embodiment)
The electromagnetic clutch 1 of this embodiment shown in FIG. 1 is used for the compressor of a vehicle air conditioner. The electromagnetic clutch 1 mainly includes an electromagnetic coil 33, a rotor 10, an armature 20, a stator 30, a sealing portion 34, and a connector 40.
　電磁コイル３３は、通電時に電磁吸引力を発生する。電磁コイル３３は、ステータ３０に保持されている。ロータ１０は、図示しない駆動源からの回転駆動力を受けて、回転軸線Ｏ１を中心に回転する。駆動源は、車両のエンジンである。ロータ１０は、低炭素鋼等の磁性材料で構成されている。アーマチュア２０は、電磁コイル３３の通電時に電磁吸引力によってロータ１０に連結される。アーマチュア２０は、電磁コイル３３の非通電時にロータ１０から切り離される。アーマチュア２０は、低炭素鋼等の磁性材料で構成されている。 The electromagnetic coil 33 generates an electromagnetic attractive force when energized. The electromagnetic coil 33 is held by the stator 30. The rotor 10 receives a rotational driving force from a driving source (not shown) and rotates about the rotation axis O1. The drive source is a vehicle engine. The rotor 10 is made of a magnetic material such as low carbon steel. The armature 20 is connected to the rotor 10 by electromagnetic attraction when the electromagnetic coil 33 is energized. The armature 20 is disconnected from the rotor 10 when the electromagnetic coil 33 is not energized. The armature 20 is made of a magnetic material such as low carbon steel.
　ステータ３０は、非回転体である。ステータ３０は、ロータ１０に収容された状態で、図示しない圧縮機のハウジングに固定される。ステータ３０は、低炭素鋼等の磁性材料で構成されている。封止部３４は、ステータ３０に設けられている。封止部３４は、電磁コイル３３を封止する。封止部３４は、ナイロン樹脂等の樹脂材料で構成されている。コネクタ４０は、電磁コイル３３を外部と電気的に接続させるための部品である。 The stator 30 is a non-rotating body. The stator 30 is fixed to a compressor housing (not shown) while being accommodated in the rotor 10. The stator 30 is made of a magnetic material such as low carbon steel. The sealing portion 34 is provided on the stator 30. The sealing unit 34 seals the electromagnetic coil 33. The sealing portion 34 is made of a resin material such as nylon resin. The connector 40 is a component for electrically connecting the electromagnetic coil 33 to the outside.
　以下において、電磁クラッチ１の構成について、より詳細に説明する。 Hereinafter, the configuration of the electromagnetic clutch 1 will be described in more detail.
　ロータ１０は、回転軸線Ｏ１の軸線方向Ｄ１の一方側が開口した断面Ｕ字形状の二重円筒構造である。軸線方向Ｄ１の一方側は、アーマチュア２０側とは反対側の反アーマチュア側である。軸線方向Ｄ１の他方側は、アーマチュア２０側である。 The rotor 10 has a double cylindrical structure having a U-shaped cross section in which one side in the axial direction D1 of the rotation axis O1 is open. One side of the axial direction D1 is an anti-armature side opposite to the armature 20 side. The other side of the axial direction D1 is the armature 20 side.
　ロータ１０は、外側円筒部１０１と、内側円筒部１０２と、壁部１０３とを有する。外側円筒部１０１は、回転軸線Ｏ１を中心とする円筒形状である。内側円筒部１０２は、回転軸線Ｏ１を中心とする円筒形状である。内側円筒部１０２は、外側円筒部１０１の内側に位置する。壁部１０３は、外側円筒部１０１と内側円筒部１０２とのそれぞれの軸線方向Ｄ１の他方側の端部をつなぐように、回転軸線Ｏ１に直交する方向に延びている。 The rotor 10 has an outer cylindrical portion 101, an inner cylindrical portion 102, and a wall portion 103. The outer cylindrical portion 101 has a cylindrical shape centered on the rotation axis O1. The inner cylindrical portion 102 has a cylindrical shape centered on the rotation axis O1. The inner cylindrical portion 102 is located inside the outer cylindrical portion 101. The wall portion 103 extends in a direction orthogonal to the rotation axis O1 so as to connect the other end portions of the outer cylindrical portion 101 and the inner cylindrical portion 102 in the axial direction D1.
　外側円筒部１０１の外周側には、図示しないＶベルトが掛けられるＶ溝１０１ａが形成されている。Ｖベルトを介して、エンジンから回転駆動力が伝達される。壁部１０３のアーマチュア２０に対向する端面１０３ａは、アーマチュア２０がロータ１０に連結された際に、アーマチュア２０と接触するロータ１０の摩擦面１０３ａである。 On the outer peripheral side of the outer cylindrical portion 101, a V groove 101a on which a V belt (not shown) is hung is formed. A rotational driving force is transmitted from the engine via the V-belt. An end surface 103 a of the wall 103 facing the armature 20 is a friction surface 103 a of the rotor 10 that comes into contact with the armature 20 when the armature 20 is connected to the rotor 10.
　電磁クラッチ１は、ボールベアリング１１を備える。ボールベアリング１１は、ロータ１０の内側に配置されている。ボールベアリング１１を介して、ロータ１０は、図示しない圧縮機のハウジングに回転自在に固定される。 The electromagnetic clutch 1 includes a ball bearing 11. The ball bearing 11 is disposed inside the rotor 10. Via the ball bearing 11, the rotor 10 is rotatably fixed to a compressor housing (not shown).
　アーマチュア２０は、中心部に貫通穴が形成された円板形状である。アーマチュア２０の回転軸線Ｏ１は、ロータ１０の回転軸線Ｏ１と一致している。アーマチュア２０のロータ１０に対向する端面２０ａは、アーマチュア２０がロータ１０に連結された際に、ロータ１０と接触するアーマチュア２０の摩擦面２０ａである。 The armature 20 has a disk shape with a through hole formed in the center. The rotation axis O1 of the armature 20 coincides with the rotation axis O1 of the rotor 10. The end surface 20 a of the armature 20 facing the rotor 10 is a friction surface 20 a of the armature 20 that contacts the rotor 10 when the armature 20 is connected to the rotor 10.
　電磁クラッチ１は、連結部材２５を備える。アーマチュア２０は、連結部材２５を介して、図示しない圧縮機の回転軸に連結される。 The electromagnetic clutch 1 includes a connecting member 25. The armature 20 is connected to a rotating shaft of a compressor (not shown) via a connecting member 25.
　連結部材２５は、アウターハブ２１と、インナーハブ２２と、ゴム２３とを含む。アウターハブ２１は、リベット２４によってアーマチュア２０に固定される。インナーハブ２２は、図示しないボルトによって、図示しない圧縮機の回転軸に固定される。ゴム２３は、アウターハブ２１とインナーハブ２２とを連結している。ゴム２３は、アウターハブ２１に対してロータ１０から離れる方向に弾性力を作用させる弾性部材である。この弾性力により、電磁コイル３３の非通電時では、ロータ１０の摩擦面１０３ａとアーマチュア２０の摩擦面２０ａの間に予め定められた所定間隔の隙間が形成される。 The connecting member 25 includes an outer hub 21, an inner hub 22, and a rubber 23. The outer hub 21 is fixed to the armature 20 by rivets 24. The inner hub 22 is fixed to a rotating shaft of a compressor (not shown) by a bolt (not shown). The rubber 23 connects the outer hub 21 and the inner hub 22. The rubber 23 is an elastic member that applies an elastic force to the outer hub 21 in a direction away from the rotor 10. Due to this elastic force, a predetermined gap is formed between the friction surface 103a of the rotor 10 and the friction surface 20a of the armature 20 when the electromagnetic coil 33 is not energized.
　ステータ３０は、ロータ１０の外側円筒部１０１と内側円筒部１０２との間に収容されている。ステータ３０は、断面形状がＬ字形状の円筒構造である。ステータ３０は、ステータ円筒部３０１と、ステータ壁部３０２とを有する。ステータ円筒部３０１は、ロータ１０の回転軸線Ｏ１を中心とする円筒形状である。ステータ３０の中心軸線Ｏ１は、ロータ１０の回転軸線Ｏ１と一致している。ステータ壁部３０２は、ステータ円筒部３０１における軸線方向Ｄ１の一方側の端部からステータ円筒部３０１の径方向Ｄ２の外側に向かって延伸している。 The stator 30 is accommodated between the outer cylindrical portion 101 and the inner cylindrical portion 102 of the rotor 10. The stator 30 has a cylindrical structure with an L-shaped cross section. The stator 30 includes a stator cylindrical portion 301 and a stator wall portion 302. The stator cylindrical portion 301 has a cylindrical shape centered on the rotation axis O <b> 1 of the rotor 10. The center axis O1 of the stator 30 coincides with the rotation axis O1 of the rotor 10. The stator wall portion 302 extends from one end portion of the stator cylindrical portion 301 in the axial direction D1 toward the outside in the radial direction D2 of the stator cylindrical portion 301.
　電磁クラッチ１は、アームサポート３１を備える。アームサポート３１は、ステータ３０を支持する支持部材である。アームサポート３１は、ステータ３０と別体として構成されている。ステータ３０は、アームサポート３１を介して、図示しない圧縮機のハウジングに固定される。 The electromagnetic clutch 1 includes an arm support 31. The arm support 31 is a support member that supports the stator 30. The arm support 31 is configured as a separate body from the stator 30. The stator 30 is fixed to a compressor housing (not shown) via an arm support 31.
　アームサポート３１は、断面形状がステータ３０とは異なるＬ字形状の円筒構造である。すなわち、アームサポート３１は、サポート円筒部３１１と、サポート壁部３１２とを有する。サポート円筒部３１１は、ロータ１０の回転軸線Ｏ１を中心とする円筒形状である。アームサポート３１の中心軸線Ｏ１は、ロータ１０の回転軸線Ｏ１と一致している。サポート壁部３１２は、中心部に貫通穴が形成された円板形状である。サポート壁部３１２における径方向Ｄ２の外側の端部は、サポート円筒部３１１における軸線方向Ｄ１の一方側の端部につながっている。アームサポート３１は、低炭素鋼等の磁性材料で構成されている。 The arm support 31 has an L-shaped cylindrical structure whose cross-sectional shape is different from that of the stator 30. That is, the arm support 31 has a support cylindrical portion 311 and a support wall portion 312. The support cylindrical portion 311 has a cylindrical shape centered on the rotation axis O <b> 1 of the rotor 10. The central axis O1 of the arm support 31 coincides with the rotational axis O1 of the rotor 10. The support wall 312 has a disc shape with a through hole formed in the center. The outer end of the support wall 312 in the radial direction D2 is connected to one end of the support cylindrical portion 311 in the axial direction D1. The arm support 31 is made of a magnetic material such as low carbon steel.
　アームサポート３１は、ステータ円筒部３０１およびステータ壁部３０２よりもステータ円筒部３０１の径方向Ｄ２の外側にサポート円筒部３１１が位置するように、ステータ３０に組み合わされる。この状態で、ステータ３０とサポート円筒部３１１とが、ロータ１０に収容される。このとき、ステータ円筒部３０１は、内側円筒部１０２と空隙を介して対向する。サポート円筒部３１１は、外側円筒部１０１と空隙を介して対向する。 The arm support 31 is combined with the stator 30 such that the support cylindrical portion 311 is positioned outside the stator cylindrical portion 301 and the stator wall portion 302 in the radial direction D2 of the stator cylindrical portion 301. In this state, the stator 30 and the support cylindrical portion 311 are accommodated in the rotor 10. At this time, the stator cylindrical portion 301 is opposed to the inner cylindrical portion 102 via a gap. The support cylindrical portion 311 faces the outer cylindrical portion 101 with a gap.
　サポート壁部３１２は、図示しない圧縮機のハウジングに固定される。サポート壁部３１２には、コネクタ取り付け用の開口部３１３が形成されている。 The support wall 312 is fixed to a compressor housing (not shown). The support wall 312 is formed with an opening 313 for attaching a connector.
　電磁クラッチ１は、スプール３２を備える。スプール３２は、電磁コイル３３が巻回される部材である。スプール３２は、樹脂材料で構成されている。スプール３２は、ステータ円筒部３０１の外周面に固定される。ステータ３０は、スプール３２を介して、電磁コイル３３を保持する。スプール３２は、電磁コイル３３とともに、封止部３４に封止されている。 The electromagnetic clutch 1 includes a spool 32. The spool 32 is a member around which the electromagnetic coil 33 is wound. The spool 32 is made of a resin material. The spool 32 is fixed to the outer peripheral surface of the stator cylindrical portion 301. The stator 30 holds the electromagnetic coil 33 via the spool 32. The spool 32 is sealed by the sealing portion 34 together with the electromagnetic coil 33.
　図２、３に示すように、コネクタ４０は、第１端子４１と、第２端子４２と、コネクタハウジング４３とを含む。第１端子４１および第２端子４２は、電磁コイル３３の導線３３１よりも圧縮強度が高い導体部材である。コネクタハウジング４３は、樹脂で成形された樹脂成形体である。 2 and 3, the connector 40 includes a first terminal 41, a second terminal 42, and a connector housing 43. The first terminal 41 and the second terminal 42 are conductor members having higher compressive strength than the conducting wire 331 of the electromagnetic coil 33. The connector housing 43 is a resin molded body formed of resin.
　図４、５に示すように、第１端子４１は、ステータ３０に設けられている。第１端子４１は、結線部４１１と、第２端子接続部４１２と、被保持部４１３とを有する。結線部４１１と、第２端子接続部４１２と、被保持部４１３とは、１つの連続した部材で構成されている。このため、第２端子接続部４１２は、結線部４１１に連なっている。
　結線部４１１は、電磁コイル３３の導線３３１と結線される。したがって、第１端子４１は、導線３３１と電気的に接続される。第２端子接続部４１２は、図３に示すように、第２端子４２と電気的に接続される。第２端子接続部４１２は、図４、５に示すように、２つの開口部４１２ａを含む。被保持部４１３は、図３、５に示すように、スプール３２に保持される。 As shown in FIGS. 4 and 5, the first terminal 41 is provided on the stator 30. The first terminal 41 includes a connection part 411, a second terminal connection part 412, and a held part 413. The connection part 411, the 2nd terminal connection part 412, and the to-be-held part 413 are comprised by one continuous member. For this reason, the second terminal connection portion 412 is connected to the connection portion 411.
The connection part 411 is connected to the conducting wire 331 of the electromagnetic coil 33. Accordingly, the first terminal 41 is electrically connected to the conducting wire 331. As shown in FIG. 3, the second terminal connection portion 412 is electrically connected to the second terminal 42. As shown in FIGS. 4 and 5, the second terminal connection portion 412 includes two openings 412 a. The held portion 413 is held by the spool 32 as shown in FIGS.
　図４、５に示すように、第１端子４１は、第２端子接続部４１２が露出した状態で、封止部３４に封止されている。結線部４１１は、封止部３４に封止されている。これにより、第１端子４１がステータ３０に固定されている。結線部４１１の防水が施されている。 4 and 5, the first terminal 41 is sealed by the sealing portion 34 with the second terminal connection portion 412 exposed. The connection part 411 is sealed by the sealing part 34. Thereby, the first terminal 41 is fixed to the stator 30. The connection part 411 is waterproofed.
　図４、５に示すように、コネクタハウジング４３は、封止部３４と別体として構成されている。第２端子４２は、コネクタハウジング４３の内部に配置されている。換言すると、第２端子４２は、コネクタハウジング４３に覆われている。第２端子４２は、第１端子４１と電気的に接続される第１端子接続部４２１と、外部と電気的に接続される外部接続部４２２とを有する。第１端子接続部４２１は、２つの突出部４２１ａを含む。外部接続部４２２は、第１端子接続部４２１に連なっている。外部接続部４２２は、第２端子４２のうち第１端子接続部４２１の反対側に位置する。 As shown in FIGS. 4 and 5, the connector housing 43 is configured separately from the sealing portion 34. The second terminal 42 is disposed inside the connector housing 43. In other words, the second terminal 42 is covered with the connector housing 43. The second terminal 42 includes a first terminal connection portion 421 that is electrically connected to the first terminal 41 and an external connection portion 422 that is electrically connected to the outside. The first terminal connection portion 421 includes two protrusions 421a. The external connection part 422 is continuous with the first terminal connection part 421. The external connection portion 422 is located on the opposite side of the second terminal 42 from the first terminal connection portion 421.
　図２、３に示すように、コネクタハウジング４３のうち第２端子４２側の部分が、アームサポート３１の開口部３１３に配置されている。図５に示す第１端子４１の２つの開口部４１２ａのそれぞれに、図５に示す第２端子４２の２つの突出部４２１ａのそれぞれが、圧入されている。これにより、第１端子４１の第２端子接続部４１２と第２端子４２の第１端子接続部４２１とは、互いに圧接接続されている。すなわち、第１端子４１と第２端子４２とは、互いに押し付け合う応力が生じている状態で、接続されている。 As shown in FIGS. 2 and 3, the portion of the connector housing 43 on the second terminal 42 side is disposed in the opening 313 of the arm support 31. Each of the two protrusions 421a of the second terminal 42 shown in FIG. 5 is press-fitted into each of the two openings 412a of the first terminal 41 shown in FIG. As a result, the second terminal connection portion 412 of the first terminal 41 and the first terminal connection portion 421 of the second terminal 42 are in pressure contact with each other. That is, the 1st terminal 41 and the 2nd terminal 42 are connected in the state which the stress which mutually presses has arisen.
　コネクタハウジング４３は、図２に示すように、かしめ固定および接着剤によって、ステータ３０に固定されている。かしめ固定は、アームサポート３１のサポート壁部３１２に設けられた爪部３１４が折り曲げられた状態になることで行われている。すなわち、コネクタハウジング４３の一部である爪部３１４がコネクタハウジング４３を押さえた状態であることによって、コネクタハウジング４３はステータ３０に固定されている。 The connector housing 43 is fixed to the stator 30 by caulking and adhesive as shown in FIG. The caulking is performed by the claw portion 314 provided on the support wall portion 312 of the arm support 31 being bent. That is, the connector housing 43 is fixed to the stator 30 by the claw portions 314 that are part of the connector housing 43 holding the connector housing 43.
　次に、本実施形態の電磁クラッチ１の作動について説明する。電磁コイル３３の通電時では、電磁コイル３３が発生する電磁吸引力によって、アーマチュア２０の摩擦面２０ａがロータ１０の摩擦面１０３ａに吸着される。これにより、アーマチュア２０がロータ１０に連結する。図示しないエンジンからの回転駆動力が図示しない圧縮機に伝達される。 Next, the operation of the electromagnetic clutch 1 of this embodiment will be described. When the electromagnetic coil 33 is energized, the friction surface 20 a of the armature 20 is attracted to the friction surface 103 a of the rotor 10 by the electromagnetic attractive force generated by the electromagnetic coil 33. As a result, the armature 20 is connected to the rotor 10. A rotational driving force from an engine (not shown) is transmitted to a compressor (not shown).
　一方、電磁コイル３３の非通電時では、ゴム２３の弾性力によって、アーマチュア２０の摩擦面２０ａがロータ１０の摩擦面１０３ａから離れる。これにより、図示しないエンジンからの回転駆動力が図示しない圧縮機に伝達されない。 On the other hand, when the electromagnetic coil 33 is not energized, the friction surface 20a of the armature 20 is separated from the friction surface 103a of the rotor 10 by the elastic force of the rubber 23. Thereby, the rotational driving force from the engine (not shown) is not transmitted to the compressor (not shown).
　次に、図１に示す本実施形態の電磁クラッチ１の製造方法について説明する。 Next, a method for manufacturing the electromagnetic clutch 1 of the present embodiment shown in FIG. 1 will be described.
　まず、図６、７に示すように、スプール３２の組付工程が行われる。スプール３２の組付工程では、ステータ３０とスプール３２とが用意される。ステータ３０のステータ壁部３０２には、コネクタ組付部３０３が形成されている。コネクタ組付部３０３は、ステータ壁部３０２のうち部材が存在しない部分である。 First, as shown in FIGS. 6 and 7, the assembly process of the spool 32 is performed. In the assembly process of the spool 32, the stator 30 and the spool 32 are prepared. A connector assembly 303 is formed on the stator wall 302 of the stator 30. The connector assembly portion 303 is a portion where no member exists in the stator wall portion 302.
　スプール３２は、コイル保持部３２１と、端子保持部３２２とを有する。コイル保持部３２１は、電磁コイル３３を保持する部分である。コイル保持部３２１は、電磁コイル３３の導線３３１が巻回される。端子保持部３２２は、第１端子４１を保持する部分である。端子保持部３２２には、溝３２２ａが形成されている。 The spool 32 has a coil holding part 321 and a terminal holding part 322. The coil holding part 321 is a part that holds the electromagnetic coil 33. The coil holding portion 321 is wound with the conducting wire 331 of the electromagnetic coil 33. The terminal holding part 322 is a part that holds the first terminal 41. A groove 322 a is formed in the terminal holding part 322.
　コネクタ組付部３０３に、端子保持部３２２が位置するように、ステータ３０にスプール３２が組付けられる。スプール３２は、ステータ円筒部３０１に対して軸線方向Ｄ１の他方側から組付けられる。これにより、スプール３２が固定されたステータ３０が形成される。 The spool 32 is assembled to the stator 30 so that the terminal holding portion 322 is positioned on the connector assembling portion 303. The spool 32 is assembled to the stator cylindrical portion 301 from the other side in the axial direction D1. Thereby, the stator 30 to which the spool 32 is fixed is formed.
　なお、スプール３２をステータ３０に組み付けることに替えて、スプール３２をステータ３０に対してインサート成形してもよい。これによっても、スプール３２が固定されたステータ３０が形成される。 Note that the spool 32 may be insert-molded with respect to the stator 30 instead of assembling the spool 32 to the stator 30. This also forms the stator 30 to which the spool 32 is fixed.
　続いて、図８、９に示すように、電磁コイル３３の組付工程、第１端子４１の組付工程および結線工程が行われる。 Subsequently, as shown in FIGS. 8 and 9, the assembly process of the electromagnetic coil 33, the assembly process of the first terminal 41 and the connection process are performed.
　電磁コイル３３の組付工程では、導線３３１がスプール３２のコイル保持部３２１に巻回される。これにより、電磁コイル３３がステータ３０に組み付けられる。 In the assembly process of the electromagnetic coil 33, the conducting wire 331 is wound around the coil holding portion 321 of the spool 32. Thereby, the electromagnetic coil 33 is assembled to the stator 30.
　電磁コイル３３の組付工程の後、第１端子４１の組付工程が行われる。第１端子４１の組付工程では、図１０、１１に示す形状である２つの第１端子４１が用意される。２つの第１端子４１は、左右対称の形状であり、基本的な形状は同じである。このため、以下では、２つの第１端子４１の一方の第１端子４１について説明する。第１端子４１は、上述の通り、結線部４１１と、第２端子接続部４１２と、被保持部４１３とを有する。図１０、１１に示す結線部４１１は、導線３３１と結線される前の状態である。図１１に示すように、第２端子接続部４１２、被保持部４１３は、それぞれ、図の上下方向に延びている。結線部４１１は、図の左右方向に延びている。すなわち、結線部４１１は、第２端子接続部４１２、被保持部４１３のそれぞれの延伸方向に対して交差する方向に延びている。 After the assembly process of the electromagnetic coil 33, the assembly process of the first terminal 41 is performed. In the assembly process of the first terminals 41, two first terminals 41 having the shapes shown in FIGS. The two first terminals 41 have a symmetrical shape, and the basic shape is the same. For this reason, below, one 1st terminal 41 of the two 1st terminals 41 is demonstrated. As described above, the first terminal 41 includes the connection part 411, the second terminal connection part 412, and the held part 413. The connection part 411 shown in FIGS. 10 and 11 is in a state before being connected to the conducting wire 331. As shown in FIG. 11, the second terminal connection portion 412 and the held portion 413 extend in the vertical direction in the drawing. The connection part 411 is extended in the left-right direction of the figure. That is, the connection part 411 extends in a direction intersecting with the extending directions of the second terminal connection part 412 and the held part 413.
　図８、９に示すように、端子保持部３２２の溝３２２ａに、第１端子４１の被保持部４１３が挿入される。これにより、第１端子４１は、端子保持部３２２に保持される。このように、第１端子４１がスプール３２に組付けられる。 8 and 9, the held portion 413 of the first terminal 41 is inserted into the groove 322a of the terminal holding portion 322. Thereby, the first terminal 41 is held by the terminal holding part 322. In this way, the first terminal 41 is assembled to the spool 32.
　このとき、図９に示すように、第１端子４１は、ステータ円筒部３０１よりもステータ円筒部３０１の径方向Ｄ２での外側の位置に配置される。第２端子接続部４１２は、軸線方向Ｄ１でのステータ３０の両端の間の範囲Ｒ１の中に配置される。このように、本実施形態では、第１端子４１のうち結線部４１１を除く部分は、範囲Ｒ１の中に配置される。 At this time, as shown in FIG. 9, the first terminal 41 is arranged at a position outside the stator cylindrical portion 301 in the radial direction D2 of the stator cylindrical portion 301. The 2nd terminal connection part 412 is arrange | positioned in the range R1 between the both ends of the stator 30 in the axial direction D1. Thus, in this embodiment, the part except the connection part 411 among the 1st terminals 41 is arrange | positioned in the range R1.
　一方、結線部４１１は、スプール３２から軸線方向Ｄ１の一方側へ延びている。結線部４１１は、ステータ３０よりも軸線方向Ｄ１の一方側に配置されている。このように、結線部４１１は、範囲Ｒ１の外に配置される。なお、電磁コイル３３の組付工程の前に、第１端子４１の組付工程が行われてもよい。 On the other hand, the connecting portion 411 extends from the spool 32 to one side in the axial direction D1. The connecting portion 411 is disposed on one side of the axial direction D1 from the stator 30. Thus, the connection part 411 is arrange | positioned outside the range R1. Note that the assembly process of the first terminal 41 may be performed before the assembly process of the electromagnetic coil 33.
　その後、結線工程が行われる。結線工程では、図８、９に示すように、範囲Ｒ１の外に、結線部４１１が配置された状態で、導線３３１と結線部４１１とが結線される。結線は、かしめまたはヒュージング等によって行われる。 After that, the wiring process is performed. In the connection process, as shown in FIGS. 8 and 9, the conductor 331 and the connection part 411 are connected in a state where the connection part 411 is arranged outside the range R <b> 1. The connection is performed by caulking or fusing.
　続いて、図１２、１３に示すように、第１端子４１の折り曲げ工程が行われる。第１端子４１の折り曲げ工程では、範囲Ｒ１の中に結線部４１１が配置されるように、第１端子４１のうち結線部４１１のスプール３２側の部分が折り曲げられる。これにより、図１３に示すように、結線部４１１は、範囲Ｒ１の中に位置する。すなわち、第１端子４１の全部は、範囲Ｒ１の中に位置する。なお、図１３では、折り曲げ工程の後の状態の結線部４１１が実線で示されるとともに、折り曲げ工程の前の状態の結線部４１１が一点鎖線で示されている。 Subsequently, as shown in FIGS. 12 and 13, a bending process of the first terminal 41 is performed. In the bending process of the first terminal 41, the portion on the spool 32 side of the connection portion 411 of the first terminal 41 is bent so that the connection portion 411 is disposed in the range R1. Thereby, as shown in FIG. 13, the connection part 411 is located in the range R1. That is, all of the first terminals 41 are located in the range R1. In FIG. 13, the connection part 411 in the state after the bending process is indicated by a solid line, and the connection part 411 in the state before the bending process is indicated by an alternate long and short dash line.
　続いて、図１４、１５に示すように、封止工程が行われる。封止工程では、射出成形法での樹脂成形によって封止部３４が形成される。このとき、スプール３２、電磁コイル３３、第１端子４１のうち第２端子接続部４１２を除く部分が封止されるように、封止部３４が形成される。これにより、結線部４１１が封止部３４に封止される。第２端子接続部４１２が封止部３４から露出する。 Subsequently, a sealing step is performed as shown in FIGS. In the sealing step, the sealing portion 34 is formed by resin molding using an injection molding method. At this time, the sealing portion 34 is formed so that the portions excluding the second terminal connection portion 412 of the spool 32, the electromagnetic coil 33, and the first terminal 41 are sealed. Thereby, the connection part 411 is sealed by the sealing part 34. The second terminal connection portion 412 is exposed from the sealing portion 34.
　続いて、図４、５に示すように、アームサポート３１の組付工程と、コネクタハウジング４３の組付工程とがこの記載順に行われる。 Subsequently, as shown in FIGS. 4 and 5, the assembly process of the arm support 31 and the assembly process of the connector housing 43 are performed in this order of description.
　アームサポート３１の組付工程では、封止部３４が形成されたステータ３０と、アームサポート３１とが用意される。アームサポート３１のサポート壁部３１２には、開口部３１３と、かしめ用の爪部３１４とが形成されている。開口部３１３から第２端子接続部４１２が露出するように、アームサポート３１がステータ３０に組付けられる。 In the assembly process of the arm support 31, the stator 30 on which the sealing portion 34 is formed and the arm support 31 are prepared. An opening 313 and a caulking claw 314 are formed in the support wall 312 of the arm support 31. The arm support 31 is assembled to the stator 30 so that the second terminal connection portion 412 is exposed from the opening 313.
　コネクタハウジング４３の組付工程では、内部に第２端子４２が配置されたコネクタハウジング４３が用意される。コネクタハウジング４３の一部が開口部３１３に挿入される。このとき、コネクタハウジング４３のうち開口部３１３に挿入される部分に、図示しない接着剤が塗布される。封止部３４のうち開口部３１３から露出している部分に、接着剤が塗布されていてもよい。また、コネクタハウジング４３のうち開口部３１３に挿入される部分と封止部３４のうち開口部３１３から露出している部分との両方に塗布されていてもよい。 In the assembly process of the connector housing 43, the connector housing 43 in which the second terminals 42 are arranged is prepared. A part of the connector housing 43 is inserted into the opening 313. At this time, an adhesive (not shown) is applied to a portion of the connector housing 43 to be inserted into the opening 313. An adhesive may be applied to a portion of the sealing portion 34 exposed from the opening 313. Moreover, it may be applied to both the portion of the connector housing 43 that is inserted into the opening 313 and the portion of the sealing portion 34 that is exposed from the opening 313.
　図５に示す第２端子４２の２つの突出部４２１ａのそれぞれが、第１端子４１の２つの開口部４１２ａのそれぞれに圧入される。これにより、図３に示すように、第１端子４１の第２端子接続部４１２と第２端子４２の第１端子接続部４２１とは、圧接接続される。 Each of the two protrusions 421 a of the second terminal 42 shown in FIG. 5 is press-fitted into each of the two openings 412 a of the first terminal 41. As a result, as shown in FIG. 3, the second terminal connection portion 412 of the first terminal 41 and the first terminal connection portion 421 of the second terminal 42 are press-connected.
　その後、図２に示すように、かしめ工程が行われる。かしめ工程では、アームサポート３１の爪部３１４が折り曲げられる。爪部３１４によって、コネクタハウジング４３がステータ３０に機械的に固定される。また、接着剤によっても、コネクタハウジング４３はステータ３０に固定される。接着剤によって、コネクタハウジング４３とステータ３０との間の隙間が埋められる。すなわち、シール性が確保される。このようにして、コネクタハウジング４３がステータ３０に固定される。 Thereafter, as shown in FIG. 2, a caulking process is performed. In the caulking process, the claw portion 314 of the arm support 31 is bent. The connector housing 43 is mechanically fixed to the stator 30 by the claw portion 314. Further, the connector housing 43 is fixed to the stator 30 also by an adhesive. The gap between the connector housing 43 and the stator 30 is filled with the adhesive. That is, sealing performance is ensured. In this way, the connector housing 43 is fixed to the stator 30.
　その後、ロータ１０と、アーマチュア２０と、ステータ３０とが組み付けられることで、図１に示す電磁クラッチ１が製造される。 Thereafter, the electromagnetic clutch 1 shown in FIG. 1 is manufactured by assembling the rotor 10, the armature 20, and the stator 30.
　次に、本実施形態の主な効果について説明する。 Next, the main effects of this embodiment will be described.
　（１）本実施形態の電磁クラッチ１によれば、コネクタ４０は、第１端子４１と、第２端子４２と、コネクタハウジング４３とを含む。コネクタハウジング４３は、樹脂材料で構成されるとともに、封止部３４と別体として構成される。第１端子４１は、電磁コイル３３の導線３３１と結線された結線部４１１と、結線部４１１に連なっているとともに第２端子４２と電気的に接続された第２端子接続部４１２とを有する。結線部４１１は、封止部３４に封止されている。第２端子接続部４１２は、封止部３４から露出している。 (1) According to the electromagnetic clutch 1 of the present embodiment, the connector 40 includes the first terminal 41, the second terminal 42, and the connector housing 43. The connector housing 43 is formed of a resin material and is configured as a separate body from the sealing portion 34. The first terminal 41 includes a connection part 411 connected to the conducting wire 331 of the electromagnetic coil 33, and a second terminal connection part 412 connected to the connection part 411 and electrically connected to the second terminal 42. The connection part 411 is sealed by the sealing part 34. The second terminal connection portion 412 is exposed from the sealing portion 34.
　これによれば、封止部３４の樹脂成形時に、電磁コイル３３の導線３３１が封止部３４の内部に存在するように、封止部３４を成形する。このため、封止部３４の射出成形法での樹脂形成時に、導線３３１を型の一部に保持させる必要がない。また、これによれば、第１端子４１の第２端子接続部４１２が封止部３４から露出した状態となるように、封止部３４を形成する。このため、封止部３４の射出成形法での樹脂形成時に、第２端子接続部４１２のうち封止部３４から露出される部分が、型の一部に挟まれる。第１端子４１の全体は、板形状の導電部材で構成されている。したがって、第２端子接続部４１２のうち封止部３４から露出される部分は、電磁コイル３３の導線３３１よりも圧縮強度が高い導電部材で構成されている。これにより、封止部３４の樹脂成形時に、型を締め付ける力による第２端子接続部４１２の破壊を回避することができる。よって、これによれば、封止部３４の射出成形法での樹脂成形が可能である。 According to this, at the time of resin molding of the sealing part 34, the sealing part 34 is molded so that the conducting wire 331 of the electromagnetic coil 33 exists inside the sealing part 34. For this reason, it is not necessary to hold the conducting wire 331 on a part of the mold when forming the resin by the injection molding method of the sealing portion 34. Also, according to this, the sealing portion 34 is formed so that the second terminal connection portion 412 of the first terminal 41 is exposed from the sealing portion 34. For this reason, at the time of resin formation by the injection molding method of the sealing part 34, the part exposed from the sealing part 34 among the 2nd terminal connection parts 412 is pinched | interposed into a part of type | mold. The entire first terminal 41 is composed of a plate-shaped conductive member. Therefore, a portion of the second terminal connection portion 412 exposed from the sealing portion 34 is made of a conductive member having a higher compressive strength than the conducting wire 331 of the electromagnetic coil 33. Thereby, destruction of the 2nd terminal connection part 412 by the force which clamps a type | mold at the time of resin molding of the sealing part 34 can be avoided. Therefore, according to this, resin molding by the injection molding method of the sealing part 34 is possible.
　また、これによれば、コネクタハウジング４３が封止部３４と別体として構成されている。このため、顧客要求に応じた様々なコネクタ４０の仕様に対して、コネクタハウジング４３の組付けまでの設計および工程を共通化することができる。コネクタハウジング４３および第２端子４２以外の構成を共通化することで、生産コストを下げることができる。 Further, according to this, the connector housing 43 is configured as a separate body from the sealing portion 34. For this reason, the design and process up to the assembly of the connector housing 43 can be made common to the specifications of various connectors 40 according to customer requirements. By sharing the configuration other than the connector housing 43 and the second terminal 42, the production cost can be reduced.
　（２）図示しないが、圧縮機のハウジングは、コネクタ４０との干渉を回避するための回避形状部を有している。ステータ３０の背面からのコネクタ４０の突出量が大きいほど、回避形状部の軸線方向Ｄ１での長さが増大する。このため、コネクタハウジング４３を封止部３４と別体として構成する場合、電磁クラッチ１が取り付けられる圧縮機全体の軸線方向Ｄ１での長さが増大するという問題がある。 (2) Although not shown, the compressor housing has an avoidance shape portion for avoiding interference with the connector 40. The length of the avoidance shape portion in the axial direction D1 increases as the protruding amount of the connector 40 from the back surface of the stator 30 increases. For this reason, when the connector housing 43 is configured separately from the sealing portion 34, there is a problem that the length of the entire compressor to which the electromagnetic clutch 1 is attached increases in the axial direction D1.
　これに対して、本実施形態の電磁クラッチ１によれば、ステータ３０は、ロータ１０の回転軸線Ｏ１を中心とするステータ円筒部３０１を有する。電磁コイル３３および第１端子４１は、ステータ円筒部３０１よりもステータ円筒部３０１の径方向Ｄ２での外側に配置されている。結線部４１１および第２端子接続部４１２を含む第１端子４１の全部は、軸線方向Ｄ１でのステータ３０の両端の間の範囲Ｒ１の中に配置されている。 On the other hand, according to the electromagnetic clutch 1 of the present embodiment, the stator 30 has the stator cylindrical portion 301 centered on the rotation axis O <b> 1 of the rotor 10. The electromagnetic coil 33 and the first terminal 41 are disposed outside the stator cylindrical portion 301 in the radial direction D2 of the stator cylindrical portion 301. All of the first terminals 41 including the connection part 411 and the second terminal connection part 412 are arranged in a range R1 between both ends of the stator 30 in the axial direction D1.
　これによれば、第１端子４１は、ステータ３０から軸線方向Ｄ１で突出していない。このため、軸線方向Ｄ１におけるステータ３０からのコネクタ４０の突出量を小さく抑えることができる。よって、圧縮機全体の軸線方向Ｄ１での長さの増大を抑制することができる。 According to this, the first terminal 41 does not protrude from the stator 30 in the axial direction D1. For this reason, the protrusion amount of the connector 40 from the stator 30 in the axial direction D1 can be suppressed small. Therefore, the increase in the length in the axial direction D1 of the whole compressor can be suppressed.
　（３）上述の通り、本実施形態の電磁クラッチ１の製造方法は、電磁コイル３３の組付工程と、第１端子４１の組付工程と、結線工程と、第１端子４１の折り曲げ工程と、封止工程と、コネクタハウジング４３の組付工程とを含む。 (3) As described above, the method of manufacturing the electromagnetic clutch 1 of the present embodiment includes the assembly process of the electromagnetic coil 33, the assembly process of the first terminal 41, the connection process, and the bending process of the first terminal 41. The sealing process and the assembly process of the connector housing 43 are included.
　第１端子４１の組付工程においては、ステータ円筒部３０１よりもステータ円筒部３０１の径方向Ｄ２での外側の位置に第１端子４１が配置される。軸線方向Ｄ１でのステータ３０の両端の間の範囲Ｒ１の中に第２端子接続部４１２が配置される。範囲Ｒ１の外に結線部４１１が配置される。 In the assembly process of the first terminal 41, the first terminal 41 is arranged at a position outside the stator cylindrical portion 301 in the radial direction D2 of the stator cylindrical portion 301. The second terminal connection portion 412 is disposed in the range R1 between both ends of the stator 30 in the axial direction D1. The connecting portion 411 is disposed outside the range R1.
　結線工程においては、範囲Ｒ１の外の位置に結線部４１１が配置された状態で、導線３３１と結線部４１１とが結線される。第１端子４１の折り曲げ工程においては、範囲Ｒ１の中に結線部４１１が配置されるように、第１端子４１が折り曲げられる。封止工程においては、結線部４１１が封止部３４に封止され、かつ、第２端子接続部４１２が封止部３４から露出するように、封止部３４が形成される。 In the connection process, the conductive wire 331 and the connection part 411 are connected in a state where the connection part 411 is arranged at a position outside the range R1. In the bending process of the first terminal 41, the first terminal 41 is bent so that the connection part 411 is disposed in the range R1. In the sealing step, the sealing portion 34 is formed so that the connection portion 411 is sealed by the sealing portion 34 and the second terminal connection portion 412 is exposed from the sealing portion 34.
　これによれば、軸線方向Ｄ１でステータ３０から結線部４１１が突出した状態で、導線３３１と結線部４１１とを結線するので、結線がしやすい。そして、結線後に第１端子４１を折り曲げることで、結線部４１１は軸線方向Ｄ１でステータ３０から突出していない。このため、軸線方向Ｄ１におけるステータ３０からのコネクタ４０の突出量を小さく抑えることができる。よって、圧縮機全体の軸線方向Ｄ１での長さの増大を抑制することができる。 According to this, since the conducting wire 331 and the connecting portion 411 are connected in a state where the connecting portion 411 protrudes from the stator 30 in the axial direction D1, it is easy to connect. Then, by bending the first terminal 41 after the connection, the connection portion 411 does not protrude from the stator 30 in the axial direction D1. For this reason, the protrusion amount of the connector 40 from the stator 30 in the axial direction D1 can be suppressed small. Therefore, the increase in the length in the axial direction D1 of the whole compressor can be suppressed.
　（第２実施形態）
　図１６、１７、１８、１９に示すように、本実施形態の電磁クラッチ１では、第１端子４１の第２端子接続部４１２の形状および第２端子４２の第１端子接続部４２１の形状が、第１実施形態と異なる。図１７は、図１６中の第２端子接続部４１２および第１端子接続部４２１の一部を図の上側から見た図である。 (Second Embodiment)
As shown in FIGS. 16, 17, 18, and 19, in the electromagnetic clutch 1 of the present embodiment, the shape of the second terminal connection portion 412 of the first terminal 41 and the shape of the first terminal connection portion 421 of the second terminal 42 are the same. This is different from the first embodiment. FIG. 17 is a view of a part of the second terminal connection portion 412 and the first terminal connection portion 421 in FIG. 16 as viewed from the upper side of the drawing.
　図１７に示すように、第１端子４１の第２端子接続部４１２は、音叉形状である。すなわち、第２端子接続部４１２は、Ｕ字形状である。第２端子接続部４１２には、スロット４１２ｂが形成されている。スロット４１２ｂは、接続の相手側の部材が圧入される空間部である。スロット４１２ｂは、第２端子接続部４１２の先端から軸線方向Ｄ１に延びている。 As shown in FIG. 17, the second terminal connecting portion 412 of the first terminal 41 has a tuning fork shape. That is, the 2nd terminal connection part 412 is U-shaped. A slot 412 b is formed in the second terminal connection portion 412. The slot 412b is a space in which a member on the other side of the connection is press-fitted. The slot 412b extends in the axial direction D1 from the tip of the second terminal connection portion 412.
　図１７に示すように、第２端子４２の第１端子接続部４２１は、板形状である。第１端子接続部４２１は、棒形状であってもよい。第２端子４２の第１端子接続部４２１は、第１端子４１の第２端子接続部４１２の先端側からスロット４１２ｂに圧入される。これにより、第１端子４１の第２端子接続部４１２と第２端子４２の第１端子接続部４２１とは、互いに圧接接続される。 As shown in FIG. 17, the 1st terminal connection part 421 of the 2nd terminal 42 is plate shape. The first terminal connection portion 421 may have a rod shape. The first terminal connection portion 421 of the second terminal 42 is press-fitted into the slot 412b from the distal end side of the second terminal connection portion 412 of the first terminal 41. As a result, the second terminal connection portion 412 of the first terminal 41 and the first terminal connection portion 421 of the second terminal 42 are press-connected to each other.
　図１８に示すように、第１端子４１の第２端子接続部４１２は、封止部３４から露出している。図１８、１９に示すように、第１端子４１の結線部４１１は、第１実施形態と同様に、封止部３４に封止されている。第１端子４１の全部は、板形状である。したがって、第２端子接続部４１２のうち封止部３４から露出される部分は、電磁コイル３３の導線３３１よりも圧縮強度が高い導電部材で構成されている。このため、本実施形態の電磁クラッチ１によっても、第１実施形態に記載の（１）の効果が得られる。 As shown in FIG. 18, the second terminal connection portion 412 of the first terminal 41 is exposed from the sealing portion 34. As illustrated in FIGS. 18 and 19, the connection portion 411 of the first terminal 41 is sealed by the sealing portion 34 as in the first embodiment. All of the first terminals 41 have a plate shape. Therefore, a portion of the second terminal connection portion 412 exposed from the sealing portion 34 is made of a conductive member having a higher compressive strength than the conducting wire 331 of the electromagnetic coil 33. For this reason, the effect (1) described in the first embodiment can also be obtained by the electromagnetic clutch 1 of the present embodiment.
　また、図１９に示すように、第１端子４１の結線部４１１は、第１実施形態と同様に、範囲Ｒ１の中に配置されている。すなわち、第１端子４１の結線部４１１は、ステータ３０から軸線方向Ｄ１で突出していない。 Moreover, as shown in FIG. 19, the connection part 411 of the 1st terminal 41 is arrange | positioned in the range R1 similarly to 1st Embodiment. That is, the connection part 411 of the first terminal 41 does not protrude from the stator 30 in the axial direction D1.
　第１端子４１の第２端子接続部４１２は、第１実施形態と異なり、軸線方向Ｄ１でステータ３０から突出している。しかしながら、図１６に示すように、第２端子接続部４１２は、コネクタハウジング４３の内部で、第２端子４２の第１端子接続部４２１と接続される。このため、軸線方向Ｄ１におけるステータ３０からのコネクタ４０の突出量を小さく抑えることができる。よって、圧縮機全体の軸線方向Ｄ１での長さの増大を抑制することができる。 Unlike the first embodiment, the second terminal connection portion 412 of the first terminal 41 protrudes from the stator 30 in the axial direction D1. However, as shown in FIG. 16, the second terminal connection portion 412 is connected to the first terminal connection portion 421 of the second terminal 42 inside the connector housing 43. For this reason, the protrusion amount of the connector 40 from the stator 30 in the axial direction D1 can be suppressed small. Therefore, the increase in the length in the axial direction D1 of the whole compressor can be suppressed.
　本実施形態の電磁クラッチ１の他の構成は、第１実施形態と同じである。 Other configurations of the electromagnetic clutch 1 of the present embodiment are the same as those of the first embodiment.
　本実施形態の電磁クラッチ１の製造方法では、第１端子４１の組付工程において、図２０、２１、２２に示す形状である２つの第１端子４１が用意される。図２０に示すように、被保持部４１３は、図の上下方向に延びている。結線部４１１、第２端子接続部４１２のそれぞれは、図の左右方向に延びている。すなわち、結線部４１１、第２端子接続部４１２のそれぞれは、被保持部４１３の延伸方向に対して交差する方向に延びている。第１端子４１の他の形状は、第１実施形態と同じである。 In the method for manufacturing the electromagnetic clutch 1 of the present embodiment, in the assembly process of the first terminal 41, two first terminals 41 having the shapes shown in FIGS. As shown in FIG. 20, the held portion 413 extends in the vertical direction in the figure. Each of the connection part 411 and the 2nd terminal connection part 412 is extended in the left-right direction of the figure. That is, each of the connection part 411 and the second terminal connection part 412 extends in a direction intersecting the extending direction of the held part 413. Other shapes of the first terminal 41 are the same as those in the first embodiment.
　本実施形態の電磁クラッチ１の製造方法では、第１端子４１と第２端子４２との形状が第１実施形態と異なることによって、第１端子４１と第２端子４２との接続方法が第１実施形態と異なる。第１端子４１と第２端子４２との接続方法を除いて、本実施形態の電磁クラッチ１の製造方法は、第１実施形態と同じである。このため、本実施形態の電磁クラッチ１の製造方法によっても、第１実施形態に記載の（３）の効果が得られる。 In the manufacturing method of the electromagnetic clutch 1 of this embodiment, the shape of the first terminal 41 and the second terminal 42 is different from that of the first embodiment, so that the connection method of the first terminal 41 and the second terminal 42 is the first. Different from the embodiment. Except for the method of connecting the first terminal 41 and the second terminal 42, the method of manufacturing the electromagnetic clutch 1 of the present embodiment is the same as that of the first embodiment. For this reason, also by the manufacturing method of the electromagnetic clutch 1 of this embodiment, the effect (3) described in the first embodiment can be obtained.
　（第３実施形態）
　本実施形態の電磁クラッチ１では、ステータ３０の形状およびアームサポート３１の形状が第１実施形態と異なる。 (Third embodiment)
In the electromagnetic clutch 1 of the present embodiment, the shape of the stator 30 and the shape of the arm support 31 are different from those of the first embodiment.
　図２３に示すように、ステータ３０は、軸線方向Ｄ１の他方側が開口した断面Ｕ字形状の二重円筒構造である。ステータ３０は、ステータ円筒部３０１と、ステータ壁部３０２と、ステータ外側円筒部３０４とを有する。ステータ外側円筒部３０４は、回転軸線Ｏ１を中心とする円筒形状である。ステータ外側円筒部３０４は、ステータ円筒部３０１の外側に位置する。ステータ外側円筒部３０４は、ロータ１０の外側円筒部１０１と対向している。ステータ壁部３０２には、コネクタ取り付け用の開口部３０５が形成されている。 As shown in FIG. 23, the stator 30 has a double cylindrical structure having a U-shaped cross section with the other side of the axial direction D1 opened. The stator 30 includes a stator cylindrical portion 301, a stator wall portion 302, and a stator outer cylindrical portion 304. The stator outer cylindrical portion 304 has a cylindrical shape centered on the rotation axis O1. The stator outer cylindrical portion 304 is located outside the stator cylindrical portion 301. The stator outer cylindrical portion 304 faces the outer cylindrical portion 101 of the rotor 10. The stator wall 302 has an opening 305 for attaching a connector.
　アームサポート３１は、中心部に貫通穴が形成された円板形状である。アームサポート３１には、コネクタ組付部３１５が形成されている。コネクタ組付部３１５は、アームサポートのうち部材が存在しない部分である。開口部３０５およびコネクタ組付部３１５に、コネクタハウジング４３が組み付けられている。電磁クラッチ１の他の構成は、第１実施形態と同じである。このため、本実施形態の電磁クラッチ１によれば、第１実施形態の電磁クラッチ１と同じ効果が得られる。 The arm support 31 has a disk shape with a through hole formed in the center. A connector assembly 315 is formed on the arm support 31. The connector assembly portion 315 is a portion where no member exists in the arm support. The connector housing 43 is assembled to the opening 305 and the connector assembly 315. Other configurations of the electromagnetic clutch 1 are the same as those in the first embodiment. For this reason, according to the electromagnetic clutch 1 of this embodiment, the same effect as the electromagnetic clutch 1 of 1st Embodiment is acquired.
　本実施形態の電磁クラッチ１の製造方法では、スプール３２に電磁コイル３３と第１端子４１とが組付けられる。この状態のスプール３２が、ステータ３０に組付けられる。電磁クラッチ１の製造方法の他の工程については、第１実施形態と同じである。このため、本実施形態の電磁クラッチ１の製造方法によれば、第１実施形態の電磁クラッチ１の製造方法と同じ効果が得られる。 In the method for manufacturing the electromagnetic clutch 1 of the present embodiment, the electromagnetic coil 33 and the first terminal 41 are assembled to the spool 32. The spool 32 in this state is assembled to the stator 30. Other steps of the method for manufacturing the electromagnetic clutch 1 are the same as those in the first embodiment. For this reason, according to the manufacturing method of the electromagnetic clutch 1 of this embodiment, the same effect as the manufacturing method of the electromagnetic clutch 1 of 1st Embodiment is acquired.
　（他の実施形態）
　（１）第１実施形態の電磁クラッチ１の製造方法では、第１端子４１の組付工程において、範囲Ｒ１の外に結線部４１１が配置される。第１端子４１の折り曲げ工程において、範囲Ｒ１の中に結線部４１１が配置されるように、第１端子４１が折り曲げられる。 (Other embodiments)
(1) In the method for manufacturing the electromagnetic clutch 1 of the first embodiment, the connecting portion 411 is disposed outside the range R1 in the assembly process of the first terminal 41. In the bending process of the first terminal 41, the first terminal 41 is bent so that the connection portion 411 is disposed in the range R1.
　しかしながら、第１端子４１の組付工程において、範囲Ｒ１の中に結線部４１１が配置されるように、第１端子４１が組み付けられてもよい。これによっても、第１実施形態に記載の（２）の効果が得られる。 However, in the assembly process of the first terminal 41, the first terminal 41 may be assembled so that the connection part 411 is arranged in the range R1. Also by this, the effect (2) described in the first embodiment can be obtained.
　（２）上記した各実施形態では、第１端子４１の全部が板形状であったが、これに限定されない。少なくとも第２端子接続部４１２のうち封止部３４から露出される部分が、板形状であればよい。すわなち、少なくとも第２端子接続部４１２のうち封止部３４から露出される部分が、電磁コイル３３の導線３３１よりも圧縮強度が高い導電部材で構成されていればよい。 (2) In each of the above-described embodiments, all of the first terminals 41 are plate-shaped, but the present invention is not limited to this. The part exposed from the sealing part 34 among the 2nd terminal connection parts 412 should just be plate shape. That is, at least a portion of the second terminal connection portion 412 exposed from the sealing portion 34 only needs to be formed of a conductive member having a higher compressive strength than the conducting wire 331 of the electromagnetic coil 33.
　（３）本開示は上記した実施形態に限定されるものではなく、請求の範囲に記載した範囲内において適宜変更が可能であり、様々な変形例や均等範囲内の変形をも包含する。また、上記各実施形態は、互いに無関係なものではなく、組み合わせが明らかに不可な場合を除き、適宜組み合わせが可能である。また、上記各実施形態において、実施形態を構成する要素は、特に必須であると明示した場合および原理的に明らかに必須であると考えられる場合等を除き、必ずしも必須のものではないことは言うまでもない。また、上記各実施形態において、実施形態の構成要素の個数、数値、量、範囲等の数値が言及されている場合、特に必須であると明示した場合および原理的に明らかに特定の数に限定される場合等を除き、その特定の数に限定されるものではない。また、上記各実施形態において、構成要素等の材質、形状、位置関係等に言及するときは、特に明示した場合および原理的に特定の材質、形状、位置関係等に限定される場合等を除き、その材質、形状、位置関係等に限定されるものではない。 (3) The present disclosure is not limited to the above-described embodiment, and can be appropriately changed within the scope described in the claims, and includes various modifications and modifications within the equivalent scope. Further, the above embodiments are not irrelevant to each other, and can be combined as appropriate unless the combination is clearly impossible. In each of the above-described embodiments, it is needless to say that elements constituting the embodiment are not necessarily essential unless explicitly stated as essential and clearly considered essential in principle. Yes. Further, in each of the above embodiments, when numerical values such as the number, numerical value, quantity, range, etc. of the constituent elements of the embodiment are mentioned, it is clearly limited to a specific number when clearly indicated as essential and in principle. The number is not limited to the specific number except for the case. In each of the above embodiments, when referring to the material, shape, positional relationship, etc. of the constituent elements, etc., unless otherwise specified, or in principle limited to a specific material, shape, positional relationship, etc. The material, shape, positional relationship, etc. are not limited.
　（まとめ）
　上記各実施形態の一部または全部で示された第１の観点によれば、電磁クラッチは、電磁コイルと、ロータと、アーマチュアと、ステータと、封止部と、コネクタとを備える。コネクタは、電磁コイルと接続された第１端子と、第１端子と別体として構成されるとともに第１端子と電気的に接続された第２端子と、第２端子を覆うコネクタハウジングとを含む。コネクタハウジングは、樹脂材料で構成されるとともに、封止部と別体として構成される。第１端子は、電磁コイルの導線と結線された結線部と、結線部に連なっているとともに第２端子と電気的に接続された第２端子接続部とを有する。結線部は、封止部に封止されている。第２端子接続部は、封止部から露出している。第２端子接続部のうち封止部から露出している部分は、電磁コイルの導線よりも圧縮強度が高い導電部材で構成されている。 (Summary)
According to a first aspect shown in part or all of the above embodiments, the electromagnetic clutch includes an electromagnetic coil, a rotor, an armature, a stator, a sealing portion, and a connector. The connector includes a first terminal connected to the electromagnetic coil, a second terminal configured separately from the first terminal and electrically connected to the first terminal, and a connector housing covering the second terminal. . The connector housing is made of a resin material and is formed as a separate body from the sealing portion. The first terminal includes a connection portion connected to the conductive wire of the electromagnetic coil, and a second terminal connection portion connected to the connection portion and electrically connected to the second terminal. The connection part is sealed by the sealing part. The second terminal connection part is exposed from the sealing part. The part exposed from the sealing part in the second terminal connection part is composed of a conductive member having higher compressive strength than the conductor of the electromagnetic coil.
　また、第２の観点によれば、ステータは、ロータの回転軸線を中心とする円筒部を有する。電磁コイルおよび第１端子は、円筒部よりも円筒部の径方向での外側に配置されている。結線部は、回転軸線の軸線方向でのステータの両端の間の範囲の中に配置されている。 Further, according to the second aspect, the stator has a cylindrical portion centered on the rotation axis of the rotor. The electromagnetic coil and the first terminal are disposed outside the cylindrical portion in the radial direction of the cylindrical portion. The connection part is arrange | positioned in the range between the both ends of the stator in the axial direction of a rotating shaft.
　これによれば、ロータの回転軸線の軸線方向でのステータからのコネクタの突出量を小さく抑えることができる。よって、電磁クラッチが取り付けられる製品全体のロータの回転軸線の軸線方向での長さの増大を抑制することができる。 According to this, the protruding amount of the connector from the stator in the axial direction of the rotation axis of the rotor can be kept small. Therefore, an increase in the length in the axial direction of the rotation axis of the rotor of the entire product to which the electromagnetic clutch is attached can be suppressed.
　また、第３の観点によれば、第２端子接続部と第２端子とは、互いに圧接接続されている。このように、第１端子と第２端子とが圧接接続されることが好ましい。 Further, according to the third aspect, the second terminal connection portion and the second terminal are press-connected to each other. As described above, it is preferable that the first terminal and the second terminal are press-connected.
　また、第４の観点によれば、電磁クラッチは、ステータを支持する支持部材を備える。支持部材の一部がコネクタハウジングを押さえた状態であることによって、コネクタハウジングはステータに固定されている。このように、コネクタハウジングの固定方法として、支持部材の一部を塑性変形させて、支持部材の一部でコネクタハウジングを押さえる、かしめ固定を採用することができる。 According to a fourth aspect, the electromagnetic clutch includes a support member that supports the stator. The connector housing is fixed to the stator by a part of the support member holding the connector housing. Thus, as a method for fixing the connector housing, it is possible to employ caulking fixing in which a part of the support member is plastically deformed and the connector housing is pressed by a part of the support member.
　また、第５の観点によれば、接着剤によって、コネクタハウジングはステータに固定されている。このように、コネクタハウジングの固定方法として、接着剤を用いる方法を採用することができる。 Further, according to the fifth aspect, the connector housing is fixed to the stator by an adhesive. Thus, as a method for fixing the connector housing, a method using an adhesive can be employed.
　また、第６の観点によれば、第２の観点に記載の電磁クラッチの製造方法は、電磁コイルをステータに組み付けることと、導線と結線部とが結線される前の状態の第１端子をステータに組み付けることと、電磁コイルおよび第１端子をステータに組み付けた後に、導線と結線部とを結線することと、導線と結線部とを結線した後に、第１端子を折り曲げることと、第１端子を折り曲げた後に、射出成形法での樹脂成形によって封止部を形成することと、封止部を形成した後に、第２端子が内部に配置されたコネクタハウジングをステータに組み付けることとを含む。第１端子をステータに組み付けることにおいては、円筒部よりも円筒部の径方向での外側に第１端子が配置され、回転軸線の軸線方向でのステータの両端の間の範囲の外に結線部が配置される。導線と結線部とを結線することにおいては、範囲の外に結線部が配置された状態で、導線と結線部とを結線する。第１端子を折り曲げることにおいては、範囲の中に結線部が配置されるように、第１端子を折り曲げる。封止部を形成することにおいては、結線部が封止部に封止され、かつ、第２端子接続部が封止部から露出するように、封止部を形成する。 According to a sixth aspect, in the electromagnetic clutch manufacturing method according to the second aspect, the electromagnetic coil is assembled to the stator, and the first terminal in a state before the conducting wire and the connecting portion are connected. After assembling to the stator, after assembling the electromagnetic coil and the first terminal to the stator, after connecting the conducting wire and the connecting portion, after connecting the conducting wire and the connecting portion, bending the first terminal, Forming the sealing part by resin molding using an injection molding method after bending the terminal, and assembling the connector housing in which the second terminal is disposed in the stator after forming the sealing part. . In assembling the first terminal to the stator, the first terminal is arranged outside the cylindrical portion in the radial direction of the cylindrical portion, and the connecting portion is outside the range between both ends of the stator in the axial direction of the rotation axis. Is placed. In connecting the conducting wire and the connecting portion, the conducting wire and the connecting portion are connected in a state where the connecting portion is disposed outside the range. In bending the first terminal, the first terminal is bent so that the connection portion is disposed within the range. In forming the sealing portion, the sealing portion is formed such that the connection portion is sealed by the sealing portion and the second terminal connection portion is exposed from the sealing portion.

Claims (6)

  1. 　電磁クラッチであって、
    　通電時に電磁吸引力を発生する電磁コイル（３３）と、
    　駆動源からの回転駆動力を受けて回転するロータ（１０）と、
    　前記電磁コイルの通電時に前記電磁吸引力によって前記ロータに連結され、前記電磁コイルの非通電時に前記ロータから切り離されるアーマチュア（２０）と、
    　前記ロータに収容され、前記電磁コイルを保持するステータ（３０）と、
    　樹脂材料で構成され、前記電磁コイルを封止する封止部（３４）と、
    　前記電磁コイルを外部と電気的に接続させるためのコネクタ（４０）とを備え、
    　前記コネクタは、前記電磁コイルと電気的に接続された第１端子（４１）と、前記第１端子と別体として構成されるとともに前記第１端子と電気的に接続された第２端子（４２）と、前記第２端子を覆うコネクタハウジング（４３）とを含み、
    　前記コネクタハウジングは、樹脂材料で構成されるとともに、前記封止部と別体として構成され、
    　前記第１端子は、前記電磁コイルの導線と結線された結線部（４１１）と、前記結線部に連なっているとともに前記第２端子と電気的に接続された第２端子接続部（４１２）とを有し、
    　前記結線部は、前記封止部に封止されており、
    　前記第２端子接続部は、前記封止部から露出しているとともに、前記第２端子接続部のうち前記封止部から露出している部分は、前記電磁コイルの導線よりも圧縮強度が高い導電部材で構成されている、電磁クラッチ。     An electromagnetic clutch,
    An electromagnetic coil (33) that generates an electromagnetic attractive force when energized;
    A rotor (10) that rotates in response to a rotational driving force from a driving source;
    An armature (20) connected to the rotor by the electromagnetic attraction force when the electromagnetic coil is energized and disconnected from the rotor when the electromagnetic coil is not energized;
    A stator (30) received in the rotor and holding the electromagnetic coil;
    A sealing part (34) made of a resin material and sealing the electromagnetic coil;
    A connector (40) for electrically connecting the electromagnetic coil to the outside;
    The connector includes a first terminal (41) electrically connected to the electromagnetic coil, and a second terminal (42) configured separately from the first terminal and electrically connected to the first terminal. And a connector housing (43) covering the second terminal,
    The connector housing is composed of a resin material and is configured as a separate body from the sealing portion,
    The first terminal includes a connection part (411) connected to the conductor of the electromagnetic coil, and a second terminal connection part (412) connected to the connection part and electrically connected to the second terminal. Have
    The connection part is sealed in the sealing part,
    The second terminal connection portion is exposed from the sealing portion, and the portion of the second terminal connection portion exposed from the sealing portion has higher compressive strength than the conductor of the electromagnetic coil. An electromagnetic clutch composed of a conductive member.
  2. 　前記ステータは、前記ロータの回転軸線（Ｏ１）を中心とする円筒部（３０１）を有し、
    　前記電磁コイルおよび前記第１端子は、前記円筒部よりも前記円筒部の径方向（Ｄ２）での外側に配置されており、
    　前記結線部は、前記回転軸線の軸線方向（Ｄ１）での前記ステータの両端の間の範囲（Ｒ１）の中に配置されている請求項１に記載の電磁クラッチ。     The stator has a cylindrical portion (301) centered on the rotation axis (O1) of the rotor,
    The electromagnetic coil and the first terminal are disposed outside the cylindrical portion in the radial direction (D2) of the cylindrical portion,
    2. The electromagnetic clutch according to claim 1, wherein the connection portion is disposed in a range (R1) between both ends of the stator in an axial direction (D1) of the rotation axis.
  3. 　前記第２端子接続部と前記第２端子とは、互いに圧接接続されている請求項１または２に記載の電磁クラッチ。 The electromagnetic clutch according to claim 1 or 2, wherein the second terminal connection portion and the second terminal are press-connected to each other.
  4. 　前記電磁クラッチは、前記ステータを支持する支持部材（３１）を備え、
    　前記支持部材の一部（３１４）が前記コネクタハウジングを押さえた状態であることによって、前記コネクタハウジングは前記ステータに固定されている請求項１ないし３のいずれか１つに記載の電磁クラッチ。     The electromagnetic clutch includes a support member (31) that supports the stator,
    The electromagnetic clutch according to any one of claims 1 to 3, wherein the connector housing is fixed to the stator when a part (314) of the support member holds the connector housing.
  5. 　接着剤によって、前記コネクタハウジングは前記ステータに固定されている請求項１ないし４のいずれか１つに記載の電磁クラッチ。 5. The electromagnetic clutch according to claim 1, wherein the connector housing is fixed to the stator by an adhesive.
  6. 　通電時に電磁吸引力を発生する電磁コイル（３３）と、
    　駆動源からの回転駆動力を受けて回転するロータ（１０）と、
    　前記電磁コイルの通電時に前記電磁吸引力によって前記ロータに連結され、前記電磁コイルの非通電時に前記ロータから切り離されるアーマチュア（２０）と、
    　前記ロータに収容され、前記電磁コイルを保持するステータ（３０）と、
    　樹脂材料で構成され、前記電磁コイルを封止する封止部（３４）と、
    　前記電磁コイルを外部と電気的に接続させるためのコネクタ（４０）とを備え、
    　前記コネクタは、前記電磁コイルと電気的に接続された第１端子（４１）と、前記第１端子と別体として構成されるとともに前記第１端子と電気的に接続された第２端子（４２）と、前記第２端子を覆うコネクタハウジング（４３）とを含み、
    　前記コネクタハウジングは、樹脂材料で構成されるとともに、前記封止部と別体として構成され、
    　前記第１端子は、前記電磁コイルの導線と結線された結線部（４１１）と、前記結線部に連なっているとともに前記第２端子と電気的に接続された第２端子接続部（４１２）とを有し、
    　前記結線部は、前記封止部に封止されており、
    　前記第２端子接続部は、前記封止部から露出しているとともに、前記第２端子接続部のうち前記封止部から露出している部分は、前記電磁コイルの導線よりも圧縮強度が高い導電部材で構成されており、
    　前記ステータは、前記ロータの回転軸線（Ｏ１）を中心とする円筒部（３０１）を有し、
    　前記電磁コイルおよび前記第１端子は、前記円筒部よりも前記円筒部の径方向（Ｄ２）での外側に配置されており、
    　前記結線部は、前記回転軸線の軸線方向（Ｄ１）での前記ステータの両端の間の範囲（Ｒ１）の中に配置されている、電磁クラッチの製造方法であって、
    　前記電磁コイルを前記ステータに組み付けることと、
    　前記導線と前記結線部とが結線される前の状態の前記第１端子を前記ステータに組み付けることと、
    　前記電磁コイルおよび前記第１端子を前記ステータに組み付けた後に、前記導線と前記結線部とを結線することと、
    　前記導線と前記結線部とを結線した後に、前記第１端子を折り曲げることと、
    　前記第１端子を折り曲げた後に、射出成形法での樹脂成形によって前記封止部を形成することと、
    　前記封止部を形成した後に、前記第２端子が内部に配置された前記コネクタハウジングを前記ステータに組み付けることとを含み、
    　前記第１端子を前記ステータに組み付けることにおいては、前記円筒部よりも前記円筒部の径方向での外側に前記第１端子が配置され、前記回転軸線の軸線方向での前記ステータの両端の間の範囲の外に前記結線部が配置され、
    　前記導線と前記結線部とを結線することにおいては、前記範囲の外に前記結線部が配置された状態で、前記導線と前記結線部とを結線し、
    　前記第１端子を折り曲げることにおいては、前記範囲の中に前記結線部が配置されるように、前記第１端子を折り曲げ、
    　前記封止部を形成することにおいては、前記結線部が前記封止部に封止され、かつ、前記第２端子接続部が前記封止部から露出するように、前記封止部を形成する、電磁クラッチの製造方法。     An electromagnetic coil (33) that generates an electromagnetic attractive force when energized;
    A rotor (10) that rotates in response to a rotational driving force from a driving source;
    An armature (20) connected to the rotor by the electromagnetic attraction force when the electromagnetic coil is energized and disconnected from the rotor when the electromagnetic coil is not energized;
    A stator (30) received in the rotor and holding the electromagnetic coil;
    A sealing part (34) made of a resin material and sealing the electromagnetic coil;
    A connector (40) for electrically connecting the electromagnetic coil to the outside;
    The connector includes a first terminal (41) electrically connected to the electromagnetic coil, and a second terminal (42) configured separately from the first terminal and electrically connected to the first terminal. And a connector housing (43) covering the second terminal,
    The connector housing is composed of a resin material and is configured as a separate body from the sealing portion,
    The first terminal includes a connection part (411) connected to the conductor of the electromagnetic coil, and a second terminal connection part (412) connected to the connection part and electrically connected to the second terminal. Have
    The connection part is sealed in the sealing part,
    The second terminal connection portion is exposed from the sealing portion, and the portion of the second terminal connection portion exposed from the sealing portion has higher compressive strength than the conductor of the electromagnetic coil. Consists of conductive members,
    The stator has a cylindrical portion (301) centered on the rotation axis (O1) of the rotor,
    The electromagnetic coil and the first terminal are disposed outside the cylindrical portion in the radial direction (D2) of the cylindrical portion,
    The wire connecting portion is a method of manufacturing an electromagnetic clutch, which is disposed in a range (R1) between both ends of the stator in the axial direction (D1) of the rotation axis,
    Assembling the electromagnetic coil to the stator;
    Assembling the first terminal in a state before the conducting wire and the connecting portion are connected to the stator;
    After assembling the electromagnetic coil and the first terminal to the stator, connecting the conductive wire and the connection portion;
    Bending the first terminal after connecting the conducting wire and the connecting portion;
    Forming the sealing portion by resin molding in an injection molding method after bending the first terminal;
    After forming the sealing portion, assembling the connector housing in which the second terminal is disposed in the stator,
    In assembling the first terminal to the stator, the first terminal is disposed outside the cylindrical portion in the radial direction of the cylindrical portion, and between both ends of the stator in the axial direction of the rotation axis. The connection portion is disposed outside the range of
    In connecting the conducting wire and the connecting portion, in a state where the connecting portion is disposed outside the range, the conducting wire and the connecting portion are connected,
    In bending the first terminal, the first terminal is bent so that the connection portion is disposed in the range.
    In forming the sealing portion, the sealing portion is formed so that the connection portion is sealed by the sealing portion and the second terminal connection portion is exposed from the sealing portion. The manufacturing method of an electromagnetic clutch.
PCT/JP2019/001308 2018-02-01 2019-01-17 Electromagnetic clutch and method for manufacturing same WO2019150978A1 (en)

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Publication number Priority date Publication date Assignee Title
JPH0617207U (en) * 1992-07-28 1994-03-04 エスエムシー株式会社 solenoid
JPH0745426A (en) * 1993-08-02 1995-02-14 Canon Inc Rocking actuator
JPH08501186A (en) * 1992-09-03 1996-02-06 シーメンス オートモーティヴ コーポレイション Coil enclosed in magnetic stator
JPH10231860A (en) * 1996-12-16 1998-09-02 Ogura Clutch Co Ltd Electromagnetic connecting device
JP2012233498A (en) * 2011-04-28 2012-11-29 Sanden Corp Electromagnetic coupling device
JP2014209022A (en) * 2013-03-29 2014-11-06 サンデン株式会社 Electromagnetic clutch and method of manufacturing electromagnetic clutch

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0617207U (en) * 1992-07-28 1994-03-04 エスエムシー株式会社 solenoid
JPH08501186A (en) * 1992-09-03 1996-02-06 シーメンス オートモーティヴ コーポレイション Coil enclosed in magnetic stator
JPH0745426A (en) * 1993-08-02 1995-02-14 Canon Inc Rocking actuator
JPH10231860A (en) * 1996-12-16 1998-09-02 Ogura Clutch Co Ltd Electromagnetic connecting device
JP2012233498A (en) * 2011-04-28 2012-11-29 Sanden Corp Electromagnetic coupling device
JP2014209022A (en) * 2013-03-29 2014-11-06 サンデン株式会社 Electromagnetic clutch and method of manufacturing electromagnetic clutch

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