WO2018193558A1 - Embrayage électromagnétique et procédé de fabrication associé - Google Patents

Embrayage électromagnétique et procédé de fabrication associé Download PDF

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Publication number
WO2018193558A1
WO2018193558A1 PCT/JP2017/015748 JP2017015748W WO2018193558A1 WO 2018193558 A1 WO2018193558 A1 WO 2018193558A1 JP 2017015748 W JP2017015748 W JP 2017015748W WO 2018193558 A1 WO2018193558 A1 WO 2018193558A1
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WO
WIPO (PCT)
Prior art keywords
winding
bobbin
electromagnetic clutch
convex portion
body portion
Prior art date
Application number
PCT/JP2017/015748
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English (en)
Japanese (ja)
Inventor
正徳 茂木
進治 横澤
Original Assignee
株式会社アールアンドエス
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社アールアンドエス filed Critical 株式会社アールアンドエス
Priority to CN201780001873.6A priority Critical patent/CN109121428B/zh
Priority to JP2019513145A priority patent/JPWO2018193558A1/ja
Priority to PCT/JP2017/015748 priority patent/WO2018193558A1/fr
Publication of WO2018193558A1 publication Critical patent/WO2018193558A1/fr

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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

Definitions

  • the present invention relates to an electromagnetic clutch and a manufacturing method thereof, and more particularly, to an electromagnetic clutch in which windings are aligned and wound with respect to a bobbin and a manufacturing method thereof.
  • An electromagnetic clutch is a mechanical mechanism that is disposed between a compressor of an air conditioner and a power source such as an engine and mechanically and intermittently connects the compressor and the power source.
  • This type of electromagnetic clutch mainly includes a rotor with a built-in coil, an armature disposed on the side of the rotor, and a hub that connects the drive shaft and the armature plate.
  • the armature When transmitting power from the power source to the compressor, the armature is attracted to the side of the rotor by the magnetic force generated by supplying power to the coil consisting of the winding wound around the bobbin.
  • the armature and the rotor are drivingly connected via the hub, and the compressor of the air conditioner is operated by the engine.
  • the coil built in the electromagnetic clutch is required to be wound tightly around the bobbin for miniaturization.
  • An invention for winding a winding around a bobbin satisfactorily is described in Patent Document 1, for example.
  • the configuration for the winding described in Patent Document 1 will be described.
  • a line portion is formed at an end portion of a body portion of a bobbin, and a spiral groove for guiding a strand is further provided on the surface of the body portion. Is formed.
  • the filament portion supports the second-stage element wire in a circumscribed state, the winding is stably performed, and it is possible to prevent displacement and collapse. .
  • the winding diameter includes a certain degree of tolerance, if the thin linear part constitutes the first stage winding, it is between the windings or between the winding and the bobbin side wall. There is a problem that the winding of the second stage falls and the winding cannot be densely wound due to the occurrence of winding collapse.
  • the present invention has been made in view of the above circumstances, and an object of the present invention is to provide an electromagnetic clutch having a configuration in which windings are wound around a bobbin in a densely aligned state and a method for manufacturing the electromagnetic clutch. It is to provide.
  • the electromagnetic clutch according to the present invention includes a rotor, an armature that is disposed on an axial side of the rotor, and is attracted to a side surface of the rotor by a magnetic field, and a magnetic field that generates the magnetic field that attracts the armature to the rotor by excitation.
  • the magnetic field generation unit includes a bobbin and a winding wound around the bobbin, and the bobbin has a cylindrical or substantially cylindrical body part, and the body part.
  • a first flange portion extending in the shape of a wall from the axial end portion side of the one side toward the radially outer side, and a first flange portion extending in the shape of a wall from the axial end portion side of the other side of the body portion toward the radially outer side.
  • 2 flange portions, a slit formed in the first flange portion, and an incomplete annular convex portion in which an end portion on the one side of the outer surface of the body portion protrudes radially outward.
  • the convex has a forward-side end and a reverse-side end along the winding direction of the winding, and the forward-side end is disposed on the forward side, spaced from the slit. It is characterized by being.
  • the axial width of the convex portion is half or substantially half of the diameter of the winding, and the most other side of the winding of the first layer to be wound The winding disposed in contact with the second flange portion.
  • a housing convex portion that is in contact with the winding of the first layer is formed along the winding direction on the outer peripheral surface of the body portion of the bobbin, and the housing convex portion is The inclination angle inclined from the outer peripheral surface of the body part is 45 degrees or more and 60 degrees or less.
  • the present invention is an electromagnetic clutch manufacturing method including a step of forming a magnetic field generating unit by winding and winding a bobbin, wherein the bobbin includes a cylindrical or substantially cylindrical body part, and a body part of the body part. A first flange portion extending in a wall shape from the axial end portion side of one side toward the radially outer side, and a second flange portion extending in a wall shape from the axial end portion side of the other side of the body portion toward the radially outer side.
  • the convex part has a forward-side end and a reverse-side end along the winding direction of the winding, and the forward-side end of the convex part is separated from the slit. Arranged on the forward direction side and winding the winding around the bobbin When doing so, while contact with said winding involving the bobbin from the slit in the convex portion, and wherein the winding on the body portion of the bobbin.
  • the winding when winding the winding around the body portion, the winding is supplied to the rotating bobbin via a nozzle, and the body portion is subjected to the above-described winding.
  • the nozzle When the direction perpendicular to the tangential direction of the winding start portion where the winding starts to be wound and the direction away from the bobbin is the first direction, and the direction opposite to the first direction is the second direction, the nozzle is The winding is arranged on the second direction side of the winding start portion of the body portion of the bobbin where winding of the winding starts.
  • the nozzle is disposed on the second direction side of the body portion of the bobbin where the winding of the winding starts, and from the center of the body portion. Is also arranged on the first direction side.
  • the electromagnetic clutch according to the present invention includes a rotor, an armature that is disposed on an axial side of the rotor, and is attracted to a side surface of the rotor by a magnetic field, and a magnetic field that generates the magnetic field that attracts the armature to the rotor by excitation.
  • the magnetic field generation unit includes a bobbin and a winding wound around the bobbin, and the bobbin has a cylindrical or substantially cylindrical body part, and the body part.
  • a first flange portion extending in the shape of a wall from the axial end portion side of the one side toward the radially outer side, and a first flange portion extending in the shape of a wall from the axial end portion side of the other side of the body portion toward the radially outer side.
  • 2 flange portions, a slit formed in the first flange portion, and an incomplete annular convex portion in which an end portion on the one side of the outer surface of the body portion protrudes radially outward.
  • the convex has a forward-side end and a reverse-side end along the winding direction of the winding, and the forward-side end is disposed on the forward side, spaced from the slit. It is characterized by being.
  • the windings are aligned and wound around the bobbin, so that the number of turns of the winding is ensured more than a fixed value and the bobbin is downsized.
  • the winding of the winding wound around the bobbin from the slit of the first flange portion is effectively arranged at a predetermined position at the convex portion, so that the first layer winding is accurately wound around the bobbin. can do.
  • the degree of bending of the winding start portion of the winding can be reduced. Therefore, by winding the second and subsequent windings on the upper layer of the first winding wound exactly as designed, all the windings can be wound exactly as designed. Can do.
  • the axial width of the convex portion is half or substantially half of the diameter of the winding, and the most other side of the winding of the first layer to be wound The winding disposed in contact with the second flange portion. Accordingly, the second layer winding can be easily wound between the first layer windings, and the second and subsequent windings can be accurately wound.
  • a housing convex portion that is in contact with the winding of the first layer is formed along the winding direction on the outer peripheral surface of the body portion of the bobbin, and the housing convex portion is The inclination angle inclined from the outer peripheral surface of the body part is 45 degrees or more and 60 degrees or less. Accordingly, the first layer winding can be wound around a predetermined location by the storage convex portion coming into contact with the surface of the first layer winding. Further, when the inclination angle of the storage convex portion is 45 degrees or more, the pressure acting when the second layer winding is wound is received by the storage convex portion, and the second layer winding is moved from a predetermined position. It can prevent coming off. Moreover, when the inclination angle of the storage convex portion is 60 degrees or less, when the bobbin is molded by injection molding, the mold releasability between the molding die and the bobbin can be ensured satisfactorily.
  • the present invention is an electromagnetic clutch manufacturing method including a step of forming a magnetic field generating unit by winding and winding a bobbin, wherein the bobbin includes a cylindrical or substantially cylindrical body part, and a body part of the body part. A first flange portion extending in a wall shape from the axial end portion side of one side toward the radially outer side, and a second flange portion extending in a wall shape from the axial end portion side of the other side of the body portion toward the radially outer side.
  • the convex part has a forward-side end and a reverse-side end along the winding direction of the winding, and the forward-side end of the convex part is separated from the slit. Arranged on the forward direction side and winding the winding around the bobbin When doing so, while contact with said winding involving the bobbin from the slit in the convex portion, and wherein the winding on the body portion of the bobbin.
  • the winding of the winding wound inside the bobbin from the slit of the first flange portion is arranged at a predetermined position effectively at the convex portion, so that the first layer winding is accurately wound around the bobbin. can do. Therefore, by winding the second and subsequent windings on the upper layer of the first winding wound exactly as designed, all the windings can be wound exactly as designed. Can do.
  • the winding when winding the winding around the body portion, the winding is supplied to the rotating bobbin via a nozzle, and the body portion is subjected to the above-described winding.
  • the nozzle When the direction perpendicular to the tangential direction of the winding start portion where the winding starts to be wound and the direction away from the bobbin is the first direction, and the direction opposite to the first direction is the second direction, the nozzle is The winding is arranged on the second direction side of the winding start portion of the body portion of the bobbin where winding of the winding starts.
  • the winding when the winding is pulled out from the nozzle, the winding can be squeezed by the nozzle, and the winding can be supplied to a predetermined portion of the body portion of the bobbin by the pressing force applied to the winding at the time of squeezing. it can.
  • the nozzle is disposed on the second direction side of the body portion of the bobbin where the winding of the winding starts, and from the center of the body portion. Is also arranged on the first direction side. Accordingly, it is possible to prevent the winding from being excessively deformed by the ironing and to prevent the winding of the winding from being disturbed by this deformation. .
  • FIG. 1 It is sectional drawing which shows the electromagnetic clutch which concerns on embodiment of this invention. It is a disassembled perspective view which shows the magnetic field generation unit which comprises the electromagnetic clutch which concerns on embodiment of this invention. It is a figure which shows the electromagnetic clutch which concerns on embodiment of this invention, (A) is a perspective view which shows a bobbin entirely, (B) is an expansion perspective view which shows the principal point. It is a figure which shows the electromagnetic clutch which concerns on embodiment of this invention, (A) is sectional drawing of the bobbin by which the coil
  • FIG. 1 It is a figure which shows the electromagnetic clutch which concerns on embodiment of this invention, (A) is an enlarged view which shows the structure by which a coil
  • the electromagnetic clutch 10 of this embodiment and the manufacturing method thereof will be described with reference to the drawings.
  • the same parts are denoted by the same reference numerals, and redundant description is omitted.
  • the upper, lower, left, and right directions are used.
  • the left and right are the left and right when facing the winding direction, the upper is the radially outer side of the bobbin 21, and the lower is the radially inner side of the bobbin 21. is there.
  • the electromagnetic clutch 10 mainly includes a rotor 11, an armature 12 disposed above the rotor 11, and a magnetic field generation unit 20 (coil) built in the armature 12.
  • the electromagnetic clutch 10 is interposed, for example, between a compressor of an air conditioner (not shown) that performs cooling and heating in a vehicle interior of a vehicle and a power source (not shown) such as an engine, and the compressor and the power source are connected. It has a function of driving and intermittent connection.
  • the electromagnetic clutch 10 drives and connects the compressor and the power source while electric power is supplied from the control device (not shown) to the winding 38 (not shown) of the magnetic field generating unit 20. Due to this, the air conditioner is operated. On the other hand, when the supply of electric power from a control device (not shown) is stopped, the compressor and the power source are separated in a driving manner, whereby the air conditioner stops.
  • the rotor 11 generally has an annular shape, and is configured as an integral part of a pulley that transmits power from a power source via a belt (not shown).
  • the rotor 11 incorporates a magnetic field generation unit 20.
  • the armature 12 is arranged to face the upper side surface of the rotor 11 and is composed of a plurality of annular armature plates. While power is not supplied to the magnetic field generating unit 20 built in the rotor 11, the armature 12 is separated from the upper side surface of the rotor 11 and does not rotate. On the other hand, while electric power is supplied to the magnetic field generating unit 20 of the rotor 11 and excited, the armature 12 is attracted to the upper side surface of the rotor 11 by the magnetic field and rotates together with the rotor 11.
  • a hub 18 is disposed near the central portion of the armature 12, and the hub 18 is drivingly connected to a compressor (not shown) disposed below the rotor 11 via a drive shaft (not shown).
  • the winding 38 is suitably aligned and wound by the magnetic field generation unit 20, so that the magnetic field generation unit 20 generates a large magnetic force with a small volume, Adsorption to the rotor 11 is possible. Therefore, the electromagnetic clutch 10 can be operated efficiently, and further, the electric power required for the operation of the electromagnetic clutch 10 can be reduced.
  • the configuration of the magnetic field generation unit 20 will be described with reference to FIG.
  • the magnetic field generation unit 20 includes a bobbin 21, a winding 38 (not shown) wound around the bobbin 21, a ring 22 that houses the bobbin 21, a winding 38 wound around the bobbin 21, and the outside. And a connector 23 for connecting the two.
  • the lower surface of the ring 22 is covered with a cover made of a steel plate (not shown).
  • the bobbin 21 is made of an injection-molded resin material, and is used for winding a winding 38 (not shown) into a predetermined shape. A plurality of protrusions are formed on the outer side surface of the bobbin 21 to fix a fuse or the like (not shown).
  • the ring 22 is made of a steel plate formed in a substantially ring shape so as to have an internal space in which the bobbin 21 can be accommodated, and has an opening for inserting the bobbin 21 on the upper surface.
  • the connector 23 is fixed to the lower surface of the bobbin 21 and is connected to both ends of a winding 38 (not shown). The lower end of the connector 23 is led downward through an opening (not shown) formed on the lower surface of the ring 22.
  • the inner space of the ring 22 in which the bobbin 21 is accommodated is filled with a resin not shown here.
  • the bobbin 21, the winding 38 (not shown), the ring 22 and the connector 23 form an integrated module, and are built in the rotor 11 shown in FIG. 1 in this state.
  • FIG. 3A is a perspective view showing the bobbin 21 as a whole
  • FIG. 3B is an enlarged perspective view showing the main part of the bobbin 21.
  • the winding direction which is the direction in which the winding 38 is wound, is indicated by an arrow.
  • the bobbin 21 includes a cylindrical or substantially cylindrical body portion 30 having a central axis in the vertical direction, and an axial end portion on one side (here, the upper side) of the body portion 30.
  • a first flange portion 31 extending in a wall shape from the side toward the radially outer side, and a second flange portion extending in a wall shape from the axial end portion side of the other side (here, the lower side) of the body portion 30 toward the radially outer side.
  • the body part 30, the first flange part 31, and the second flange part 32 constituting the bobbin 21 are made of a synthetic resin that is integrally molded by injection molding using a molding die.
  • a winding 38 (not shown) is wound around an inner space surrounded by the outer side surface of the body portion 30, the inner side surface of the first flange portion 31, and the inner side surface of the second flange portion 32.
  • the storage convex portion 37 is formed by projecting the outer side surface of the body portion 30 partially outward in the radial direction along the circumferential direction.
  • the storage convex portion 37 is for contacting the first row of windings 38 from the inside in the radial direction so that the first row of windings 38 are aligned and wound in a predetermined shape.
  • the shape and the like of the storage convex portion 37 will be described later with reference to FIG.
  • the slit 33 is formed by partially notching the first flange portion 31.
  • the slit 33 is formed from the radially outer end of the first flange portion 31 to the radially inner end.
  • the width along the circumferential direction of the slit 33 can lead out one end of the winding 38 from the bobbin 21 to the outside, and can introduce the other end of the winding 38 into the bobbin 21 from the outside. It is said to be long.
  • the side protrusion 24 is formed by protruding the outer side surface of the first flange portion 31 toward the outer side in the axial direction at a position sandwiching the slit 33.
  • the side protrusion 24 is fitted with the connector 23 shown in FIG. 1, whereby the connector 23 is fixed at a predetermined position of the bobbin 21.
  • the convex portion 34 is formed in a portion where the outer side surface of the body portion 30 and the inner side surface of the first flange portion 31 are continuous. As described later, the convex portion 34 has a rectangular or substantially rectangular cross section and is formed in an incomplete ring shape.
  • the convex portion 34 includes a forward side end 35 that is an end disposed in the forward direction with respect to the winding direction, and a reverse side end that is an end disposed in the reverse direction with respect to the winding direction. Part 36.
  • the forward direction of the winding direction is simply referred to as the forward direction
  • the reverse direction of the winding direction is simply referred to as the reverse direction.
  • the width of the convex portion 34 along the axial direction of the bobbin 21 is, for example, half or substantially half of the wound winding 38.
  • the forward side end portion 35 of the convex portion 34 is arranged farther in the forward direction side than the forward direction end portion of the slit 33. In this way, the winding can be smoothly brought into contact with the convex portion 34. Specifically, if the forward end of the slit 33 and the convex portion 34 are made to coincide with each other in the circumferential direction, the slit 33 is moved into the bobbin 21 in the winding winding process. The winding to be introduced is greatly bent at the place where the convex portion 34 is formed, and this bending may disturb the aligned winding.
  • the forward side end portion 35 of the convex portion 34 is arranged farther in the forward direction side than the forward direction end portion of the slit 33.
  • the winding 38 introduced into the bobbin 21 from the slit 33 is gently curved in the forward direction, and then the convex portion 34 It comes to contact
  • the length L5 at which the forward end 35 of the convex portion 34 is separated from the forward end 35 of the slit 33 is, for example, not less than 0.5 mm and not more than 2.0 mm.
  • L5 By setting L5 to 0.5 mm or more, the degree of bending of the portion of the winding 38 that is wound from the slit 33 into the bobbin 21 and contacts the side surface of the convex portion 34 is reduced, and the alignment winding is smoothly performed. I can do it. Further, by setting L5 to 2.0 mm or less, the length of the convex portion 34 is ensured to be long, and the inner side surface of the convex portion 34 is in contact with the winding 38, thereby defining the position of the winding 38. The effect can be increased.
  • the reverse side end 36 of the convex portion 34 is disposed at the same position as the reverse side end of the slit 33 in the circumferential direction.
  • the storage convex portion 37 is formed on the outer surface of the body portion 30 along the winding direction.
  • the storage convex portion 37 extends in parallel to the winding direction.
  • a non-formed part 39 is defined on the outer surface of the body part 30 around the slit 33, and the non-formed part 39 is a smooth surface on which the storage convex part 37 is not formed. Since the storage convex portion 37 is not formed on the non-forming portion 39, when the winding is wound around the bobbin 21, the winding 38 is connected to the opposite end of the storage convex portion 37 at the non-forming portion 39. It is possible to transition from the portion to the forward end of the other storage convex portion 37 adjacent to the storage convex portion 37.
  • FIG. 4A is a cross-sectional view showing a structure in which the winding 38 is wound around the bobbin 21
  • FIG. 4B is a schematic view of the configuration in which the winding 38 is wound as viewed from the outside in the radial direction. is there.
  • the winding 38 is wound around the bobbin 21 in an aligned manner.
  • a winding method for winding the same number of windings 38 across a plurality of stages is generally referred to as the same number winding, but the winding method of the present embodiment is based on the same number of windings, and the first stage.
  • the winding position is adjusted.
  • the first stage is wound from the right end to the left end
  • the second stage is wound from the left end to the right end. Odd-numbered steps are wound toward the left, and even-numbered steps are wound toward the right.
  • a convex portion 34 having a rectangular cross-sectional shape is formed in a portion where the body portion 30 and the first flange portion 31 are continuous.
  • the left side surface of the convex portion 34 is in contact with the right end of the winding 38 ⁇ / b> A that is wound first on the rightmost side of the first stage.
  • the width of the convex portion 34 is half or substantially half the diameter of the winding 38.
  • the left side surface of the convex portion 34 is brought into contact with the right end of the winding 38A that is wound first on the rightmost side of the first stage, whereby the winding 38C wound on the leftmost side of the first stage.
  • the second-stage winding 38 can be arranged at a predetermined location as will be described later. Further, the convex portion 34 is not in contact with the winding 38 wound in the second stage.
  • the winding 38D (winding) wound first in the second stage is disposed above the winding 38C and the winding 38D arranged on the leftmost side of the first stage.
  • the line 38D is indicated by a dotted line).
  • the position of the windings 38B and 38C wound at the end of the first stage is accurately defined.
  • the position of the winding 38D disposed between the winding 38D and the winding 38D can be accurately defined. Therefore, the winding 38 can be entirely wound at a predetermined position, and the winding 38 can be tightly wound.
  • FIG. 5A is a cross-sectional view showing a winding configuration according to this embodiment
  • FIG. 5B is a cross-sectional view showing a winding configuration of a comparative example.
  • the first-stage windings 38B and 38C are arranged so as to be brought into close contact with the second flange portion 32 side. Accordingly, the winding 38D, which is the first winding 38 on the two-step surface, is disposed between the winding 38B and the winding 38C.
  • the mechanical mechanism and operation include certain tolerances, so that the two-step winding 38D is wound. It is conceivable that the position of the position shifts to the left or right.
  • the allowable length of deviation of the center position P12 of the winding 38D in the left-right direction. Can be between the center position P11 of the winding 38B and the center position P12 of the winding 38C.
  • the distance L2 between the center position P11 of the winding 38B and the center position P10 of the winding 38C is equal to the diameter of the winding 38B and the like, and is sufficiently wide. That is, the winding 38 ⁇ / b> D is allowed to shift leftward to the position indicated by the dotted line and allowed to shift rightward to the position indicated by the alternate long and short dash line. Therefore, even if the position where the winding 38D is wound is slightly deviated, the winding 38D can be prevented from coming off between the winding 38B and the winding 38C.
  • a comparative example will be described with reference to FIG.
  • the winding 38C disposed at the left end of the first stage is wound away from the second flange portion 32, the winding 38D wound at the left end of the second stage is wound in the left-right direction.
  • 38C and the 2nd flange part 32 will be arrange
  • the allowable length in which the deviation of the winding 38D is allowed is a short width L3 from the center position P10 of the winding 38C to the center position P12 of the winding 38D.
  • L3 is equivalent to the radius of the winding 38C. Therefore, in the case of this comparative example, when the position where the winding 38D is wound is shifted (for example, when the winding 38D is shifted to a position indicated by a dotted line), the winding 38D is connected to the winding 38C and the second flange portion. There is a high risk that it will be out of the range.
  • a housing convex portion 37 is formed on the outer side surface of the body portion 30 of the bobbin 21 along the circumferential direction.
  • the storage convex portion 37 is formed corresponding to each winding 38 and has a triangular cross section.
  • three storage convex portions 37 are shown, and the windings 38E and 38F in the first row are stored between the storage convex portions 37.
  • the windings 38 ⁇ / b> E and 38 ⁇ / b> F are in contact with the inclined surfaces of the storage convex portion 37 at the lower portions on both the left and right sides.
  • a second row of windings 38G is wound above the windings 38E and 38F.
  • the storage convex portion 37 has a shape protruding outward from the surface of the body portion 30 in a triangular shape, and the inclination angle ⁇ at which the inclined surface of the storage convex portion 37 is inclined from the surface of the body portion 30 is, for example, It is 45 degrees or more and 60 degrees or less.
  • the second winding 38G can be stably supported by the storage convex portion 37.
  • the point where the weight of the winding 38E in the first row acts on the storage convex portion 37 is P20
  • the point where the weight of the winding 38F in the second row acts on the storage convex portion 37 is P21.
  • P21 can be set to the end side of the storage convex portion 37 with respect to P20.
  • P21 may be disposed inside the triangular region with respect to P20. This makes it possible to stably support the second row of windings 38G on the slope of the storage convex portion 37 via the windings 38F and 38E.
  • the inclination angle ⁇ of the slope of the storage convex portion 37 is 60 degrees or less, when the bobbin 21 having the storage convex portion 37 is injection-molded, the releasability between the bobbin 21 and the molding die is good. Can be.
  • FIG. 7 a method for manufacturing the electromagnetic clutch having the configuration shown in FIG. 1 will be described.
  • a process of winding the winding 38 around the bobbin 21 is shown
  • FIG. 7A is a side view showing the winding process
  • FIG. 7B is a configuration of the nozzle 40 used for the winding.
  • the winding 38 fed out from the nozzle 40 is wound around the body 30 of the bobbin 21 while the bobbin 21 is rotated counterclockwise on the paper surface at a predetermined speed.
  • the nozzle 40 reciprocates along the axial direction of the bobbin 21 while feeding the winding 38 to the bobbin 21.
  • the nozzle 40 reciprocates along a direction that penetrates the paper surface vertically.
  • the winding 38 introduced from the slit 33 to the bobbin 21 is first wound while being in contact with the left side surface of the convex portion 34. Thereby, the winding 38 of the first stage is suitably wound around a predetermined location.
  • the nozzle 40 has a cylindrical shape, and the inner diameter of the nozzle 40 is formed larger than the winding 38.
  • a copper wire made of copper or an aluminum wire made of aluminum can be adopted.
  • an aluminum wire is adopted as the winding 38, it is necessary to suitably adjust the tensile strength applied to the winding 38 during winding because aluminum is a material that is more easily deformed than copper.
  • the winding 38 is formed of a metal wire made of copper or aluminum, a polyester film and a slipping film covering the periphery of the metal wire.
  • the surface of the winding 38 has a friction coefficient of 0.45 to 0.55 or less in order to ensure slipperiness during winding.
  • the relative position between the nozzle 40 and the bobbin 21 is such that the winding 38 can be wound around a predetermined portion of the bobbin 21 and excessive deformation of the winding 38 can be suppressed.
  • a winding start portion where the winding 38 starts to be wound around the body portion 30 of the bobbin 21 is defined as P30.
  • the direction facing the first direction is the second direction.
  • the upper direction is the first direction and the lower direction is the second direction.
  • the position of the nozzle 40 is set to the second direction side from the winding start portion P30 of the bobbin 21 (the lower side on the paper surface).
  • the winding 38 can be supplied to the bobbin 21 while pushing the upper end of the winding 38 downward at the upper end of the inner wall of the nozzle 40, and the body portion.
  • the winding 38 can be wound around 30 predetermined locations.
  • the position of the nozzle 40 at the time of winding is the second direction side (lower side on the paper surface) with respect to the winding start portion P30 of the bobbin 21, and the body portion 30 of the bobbin 21 It is the first rear side (upper side on the paper surface) from the center position P20.
  • the winding 38 is supplied to the body portion 30 while moving the nozzle 40 along the axial direction of the body portion 30.
  • the nozzle 40 does not precede the position where the winding 38 is wound around the body portion 30.
  • the nozzle 40 traverses behind the position where the winding 38 is wound around the body portion 30.
  • the bobbin 21 around which the winding 38 is wound is stored in the ring 22, the winding 38 and the connector 23 are connected, and resin filling is performed.
  • the magnetic field generation unit 20 is configured. Further, referring to FIG. 1, the electromagnetic clutch 10 is manufactured by incorporating the magnetic field generating unit 20, the rotor 11, and the armature 12 with each other.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
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  • Mechanical Engineering (AREA)
  • Electromagnets (AREA)

Abstract

La présente invention concerne un embrayage électromagnétique ayant une structure dans laquelle l'enroulement est enroulé de manière serrée et alignée sur une bobine ; l'invention concerne également un procédé de fabrication de cet embrayage électromagnétique. Cet embrayage magnétique (10) est équipé d'un rotor (11), d'une armature (12) au-dessus du rotor (11), et d'une unité de génération de champ magnétique (20) intégrée dans l'armature (12). L'unité de génération de champ magnétique (20) est équipée d'une bobine (21), d'un enroulement enroulé autour de la périphérie de la bobine (21), et d'une bague (22) qui reçoit la bobine (21). La bobine (21) comprend une section corps (30), une première section bride (31), une seconde section bride (32), une fente (33) formée dans la première section bride (31), et une région convexe circulaire incomplète (34) formée par une partie extrémité de la surface externe de la section corps (30) faisant saillie vers l'extérieur dans la direction radiale.
PCT/JP2017/015748 2017-04-19 2017-04-19 Embrayage électromagnétique et procédé de fabrication associé WO2018193558A1 (fr)

Priority Applications (3)

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CN201780001873.6A CN109121428B (zh) 2017-04-19 2017-04-19 电磁离合器及其制造方法
JP2019513145A JPWO2018193558A1 (ja) 2017-04-19 2017-04-19 電磁クラッチおよびその製造方法
PCT/JP2017/015748 WO2018193558A1 (fr) 2017-04-19 2017-04-19 Embrayage électromagnétique et procédé de fabrication associé

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PCT/JP2017/015748 WO2018193558A1 (fr) 2017-04-19 2017-04-19 Embrayage électromagnétique et procédé de fabrication associé

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WO2018193558A1 true WO2018193558A1 (fr) 2018-10-25

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JPS5347904B2 (fr) * 1973-09-10 1978-12-25
JPH063764B2 (ja) * 1989-01-13 1994-01-12 日本電装株式会社 コイル装置
JPH10233331A (ja) * 1997-02-19 1998-09-02 Toyo Denso Co Ltd 点火コイルのバンク巻方法
JP2010087439A (ja) * 2008-10-03 2010-04-15 Hamanako Denso Co Ltd 電磁ソレノイド用コイルのスプールおよび電磁ソレノイド用コイル体
JP2012015290A (ja) * 2010-06-30 2012-01-19 Tdk Corp コイルボビン及びコイル部品
JP2012036914A (ja) * 2010-08-03 2012-02-23 Denso Corp ロックセンサ
JP2015050364A (ja) * 2013-09-03 2015-03-16 日特エンジニアリング株式会社 コイルの製造装置及びコイルの製造方法

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Publication number Priority date Publication date Assignee Title
US5274907A (en) * 1990-05-23 1994-01-04 Basler Electric Company Apparatus for winding a toroid coil on a toroidal body
CN204614662U (zh) * 2015-05-15 2015-09-02 山东哈大电气有限公司 基于张力自动控制的干式空心电抗器绕线设备

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5347904B2 (fr) * 1973-09-10 1978-12-25
JPH063764B2 (ja) * 1989-01-13 1994-01-12 日本電装株式会社 コイル装置
JPH10233331A (ja) * 1997-02-19 1998-09-02 Toyo Denso Co Ltd 点火コイルのバンク巻方法
JP2010087439A (ja) * 2008-10-03 2010-04-15 Hamanako Denso Co Ltd 電磁ソレノイド用コイルのスプールおよび電磁ソレノイド用コイル体
JP2012015290A (ja) * 2010-06-30 2012-01-19 Tdk Corp コイルボビン及びコイル部品
JP2012036914A (ja) * 2010-08-03 2012-02-23 Denso Corp ロックセンサ
JP2015050364A (ja) * 2013-09-03 2015-03-16 日特エンジニアリング株式会社 コイルの製造装置及びコイルの製造方法

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CN109121428A (zh) 2019-01-01
CN109121428B (zh) 2020-04-24

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