WO2021205652A1 - Electric motor, lead wire winding device, and electric motor manufacturing method - Google Patents

Electric motor, lead wire winding device, and electric motor manufacturing method Download PDF

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Publication number
WO2021205652A1
WO2021205652A1 PCT/JP2020/016130 JP2020016130W WO2021205652A1 WO 2021205652 A1 WO2021205652 A1 WO 2021205652A1 JP 2020016130 W JP2020016130 W JP 2020016130W WO 2021205652 A1 WO2021205652 A1 WO 2021205652A1
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WO
WIPO (PCT)
Prior art keywords
lead wire
covering
electric motor
winding
manufacturing
Prior art date
Application number
PCT/JP2020/016130
Other languages
French (fr)
Japanese (ja)
Inventor
信哉 高田
洋輔 藤森
加藤　丈晴
Original Assignee
三菱電機株式会社
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.)
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Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to PCT/JP2020/016130 priority Critical patent/WO2021205652A1/en
Priority to JP2022514283A priority patent/JP7378590B2/en
Publication of WO2021205652A1 publication Critical patent/WO2021205652A1/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/32—Windings characterised by the shape, form or construction of the insulation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/08—Insulating casings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes

Definitions

  • the present disclosure relates to an electric motor having a lead wire for power supply, a lead wire winding device for winding the lead wire of the electric motor, and a manufacturing method of the electric motor.
  • Patent Document 1 discloses an electric motor having a lead wire in which a plurality of electric wires are coated with a covering material.
  • the present disclosure is to solve the above-mentioned problems, and an object of the present disclosure is to provide an electric motor, a lead wire winding device, and a method for manufacturing the electric motor, which can suppress the occurrence of disconnection of an electric wire.
  • the electric motor of the present disclosure includes a rotary drive device that converts electric power into rotational energy, and a lead wire that is connected to the outer shell of the rotary drive device and supplies the electric power to the rotary drive device. It has a plurality of coated electric wires including an electric wire that supplies electric power to the rotary drive device, and a covering body that covers the plurality of coated electric wires and is wound and laminated in a spiral shape together with the plurality of coated electric wires. ing.
  • the lead wire winding device of the present disclosure is a lead wire winding device for manufacturing the above-mentioned electric motor, and has a pedestal having a clamp for fastening the rotation driving device and a distal end of the covering body. It has a clip to be gripped and a rotating body on which the clip is arranged, and includes a turntable around which the covering body is wound around the rotating body by the rotation of the rotating body.
  • the method for manufacturing an electric motor of the present disclosure is the above-mentioned method for manufacturing an electric motor, which includes a step of fastening the rotary drive device, a step of gripping the distal end of the covering body, and a winding of the covering body. It has a step of making it.
  • the lead wire covering is wound in a spiral shape and laminated, excessive stress is not generated in a part of the lead wire. Therefore, it is possible to suppress disconnection of the covered electric wire covered with the covering body.
  • FIG. It is a perspective view which showed an example of the electric motor which concerns on Embodiment 1.
  • FIG. It is the schematic which showed an example of the lead wire winding apparatus which concerns on Embodiment 2.
  • FIG. It is the schematic which showed the winding operation of the lead wire 20 in the lead wire winding apparatus 100 which concerns on Embodiment 2.
  • FIG. It is a flowchart which shows the manufacturing process of the electric motor by the lead wire winding device which concerns on Embodiment 2.
  • FIG. 1 is a perspective view showing an example of the electric motor 1 according to the first embodiment.
  • the dimensional relationship and shape of each component may differ from the actual ones.
  • the same members or parts or members or parts having the same functions are designated by the same reference numerals or omitted.
  • the motor 1 is formed as, for example, a mold-type DC brushless motor.
  • the electric motor 1 includes a rotary drive device 10 having a stator 3 having a hollow cylindrical appearance and a rotor 5 slidably housed in a hollow portion of the stator 3.
  • the rotation drive device 10 has a cylindrical outer shell 10a formed by the stator 3 and the rotor 5.
  • the electric motor 1 includes a lead wire 20 which is connected to the outer shell 10a of the rotary drive device 10 and supplies electric power to the rotary drive device 10.
  • the electric power supplied through the lead wire 20 is converted into rotational energy.
  • a magnetic field is generated in the stator 3 by the electric power supplied through the lead wire 20, and the rotor 5 rotates due to a change in the magnetic field generated in the stator 3 with time.
  • stator 3 Although the stator 3 is not shown, a hollow cylindrical stator core, an insulator arranged on a pair of hollow disk surfaces of the stator core, and a wire such as a copper magnet wire are used as the stator core and the insulator. It has a main body portion including a coil formed by winding. In the stator 3, a magnetic field is generated on the hollow side of the stator core by the current flowing through the coil. When the current flowing through the coil is an alternating current, the magnetic field generated on the hollow side of the stator core changes with time.
  • the main body of the stator 3 is covered with a thermosetting resin such as a bulk molding compound containing an unsaturated polyester resin as a main component.
  • a thermosetting resin such as a bulk molding compound containing an unsaturated polyester resin as a main component.
  • the main body portion of the stator 3 and the tip of the lead wire 20 electrically connected to the main body portion of the stator 3 are arranged in a mold, and a thermosetting resin is injected into the mold to fill the mold. Molded by. Molding may be done by compression molding.
  • the bulk molding compound is abbreviated as BMC.
  • the rotor 5 has a resin magnet that radially generates a magnetic field in the direction of the stator 3.
  • the resin magnet is a raw material in which a powder of a rare earth magnet such as samarium iron or a ferrite powder such as neodymium-iron-boron powder is contained in a polyamide resin such as nylon or a thermoplastic resin such as polyphenylene sulfide resin, and is used as a bond magnet. It is molded. A multiple of 2 magnetic poles are formed on the resin magnet.
  • the resin magnet is arranged on the outer periphery of the rotor 5, and the magnetic poles of the resin magnet are formed so that the polarities alternate along the circumferential direction of the rotor 5.
  • the resin magnet For example, in the resin magnet, eight magnetic poles are formed, and four N poles and four S poles are formed so as to alternate in the circumferential direction.
  • the rotor 5 rotates in the circumferential direction about the axis of the rotor 5 due to the change of the magnetic field generated in the stator 3 with time.
  • the lead wire 20 connected to the outer shell 10a of the rotary drive device 10 has a plurality of covered electric wires 22.
  • One end of the plurality of covered electric wires 22 is drawn into the stator 3 from the entrance 10a1 of the outer shell 10a.
  • a first connector 24a or a second connector 24b is connected to the other end of the plurality of covered electric wires 22.
  • the first connector 24a and the second connector 24b are collectively referred to as a connector 24 when it is not necessary to distinguish them.
  • the first connector 24a is connected to, for example, an inverter circuit that supplies electric power to the motor 1 by switching control and controls the rotation speed of the motor 1.
  • the electric motor 1 is a three-phase synchronous electric motor
  • three electric wires such as a U-phase electric wire, a V-phase electric wire, and a W-phase electric wire for supplying electric power to the rotary drive device 10 are connected to the first connector 24a.
  • the number of electric wires for supplying electric power to the rotary drive device 10 differs depending on the type of the motor 1. For example, when the motor 1 is a single-phase motor, the number of electric wires for supplying electric power to the rotary drive device 10 is one.
  • the second connector 24b is connected to, for example, a control circuit that transmits a control signal to the inverter circuit and controls switching of the inverter circuit.
  • the motor 1 is a three-phase synchronous motor
  • four communication lines and one neutral line are connected to the second connector 24b.
  • the communication line includes, for example, a U-phase current sensor that detects a U-phase current built in the stator 3, a V-phase current sensor that detects a V-phase current, a W-phase current sensor that detects a W-phase current, and a rotor 5. It is connected to a magnetic sensor that detects the position of the current.
  • the neutral wire is grounded at the neutral point via the second connector 24b, and is connected to the neutral point terminal of the electrical wiring inside the stator 3.
  • the U-phase current sensor, V-phase current sensor, W-phase current sensor, magnetic sensor, and neutral point terminal are not shown in FIG.
  • the U-phase current sensor, V-phase current sensor, W-phase current sensor, and magnetic sensor are formed of, for example, Hall elements made of indium antimonide or gallium arsenic.
  • the number of communication lines varies depending on the type of the motor 1, and the communication lines can be omitted.
  • the number of connectors 24 of the lead wire 20 does not have to be two, that is, the first connector 24a and the second connector 24b.
  • the lead wire 20 may have three or more connectors 24, or may have only one connector 24.
  • the lead wire 20 has a covering body 30 that collectively covers a plurality of covered electric wires 22.
  • the covering body 30 is formed in a tubular shape by, for example, silicone rubber or the like, and is arranged so as to extend between the inlet 10a1 of the outer shell 10a of the rotation driving device 10 and the connector 24.
  • the end of the covering 30 on the connector 24 side is referred to as the distal end 30a of the covering 30, and the end of the covering 30 on the inlet 10a1 side is referred to as the proximal end 30b of the covering 30.
  • a binding band 32 for suppressing the movement of the covering body 30 is provided at the proximal end 30b of the covering body 30.
  • the covering body 30 of the lead wire 20 is wound and laminated in a spiral shape together with a plurality of covered electric wires 22.
  • the covering body 30 wound and laminated in a “spiral shape” is not limited to a circular shape, and may have another shape as long as it is wound and laminated in an O-shape.
  • the covering body 30 wound and laminated in a “spiral shape” may have an elliptical shape or an oval shape.
  • the covering body 30 of the lead wire 20 has a plurality of straight portions 34 and a plurality of bent portions alternately arranged with the plurality of straight portions 34. It can be formed to have 36 and.
  • the covering body 30 of the lead wire 20 can be laminated in the same shape.
  • the cover 30 of the lead wire 20 is wound so that the connector 24 faces the rotation drive device 10, but the connector 24 is wound so as to face the direction away from the rotation drive device 10. May be good.
  • the lead wire 20 is generally formed in a state of being extended in a straight line shape. Further, the lead wire 20 is formed into various lengths according to the use of the electric motor 1. In a state where the lead wire 20 extends in a linear shape, as the lead wire 20 becomes longer, excessive stress is generated due to, for example, the lead wire 20 being entangled with the manufacturing machine in the manufacturing process, and the lead wire 20 is disconnected or the like. Is more likely to be damaged. Further, even in a manual process such as inspection of the motor 1, excessive tension may be generated in the lead wire 20, and damage such as disconnection may occur in the lead wire 20. Further, when the electric motor 1 which is the final product is conveyed, when the lead wire 20 is extended in a linear shape, the lead wire 20 at the time of packing the electric motor 1 is manually accommodated, so that the efficiency of the packing work is improved. May decrease.
  • the lead wires 20 when bundling the lead wires 20 formed in a linear shape, the lead wires 20 have been manually bent, but depending on the bending method of the lead wires 20, excessive stress is applied to the bent portion of the lead wires 20. May occur and damage such as disconnection of the lead wire 20 may occur.
  • the covering body 30 of the lead wire 20 is wound in a spiral shape.
  • the covering body 30 of the lead wire 20 is wound in a spiral shape.
  • the lead wire 20 is wound in the same shape by winding the covering body 30 of the lead wire 20 in a spiral shape and laminating them. Therefore, even if the number of windings of the lead wire 20 is increased, the shape of the wound lead wire 20 does not expand, so that the winding shape can be stabilized. Further, by winding the lead wire 20 into the same shape, the work of bundling the lead wire 20 at the time of transporting the final product, the motor 1, becomes easy. Further, when the lead wire 20 accommodating portion is formed in the transport container of the motor 1, the lead wire 20 can be easily accommodated in the transport container by winding the lead wire 20 in the same shape. The work efficiency of packing work during transportation is improved.
  • the covering body 30 of the lead wire 20 can be wound with a constant width.
  • the lead wire 20 is formed into various lengths depending on the application of the motor 1, but by adjusting the length of the straight line portion 34, the lead wire 20 does not depend on the length of the lead wire 20.
  • the number of turns of the lead wire 20 can be the same. Therefore, at the time of manufacturing the motor 1, it is not necessary to adjust the winding start position and winding end position of the lead wire 20 in the stacking direction according to the length of the lead wire 20, so that the manufacturing efficiency of the motor 1 is improved. ..
  • the covering body 30 of the lead wire 20 so as to have a plurality of bent portions 36, it is possible to suppress the generation of excessive stress in a part of the lead wire 20.
  • the stress generated in the bent portion 36 can be adjusted by adjusting the radius of curvature of the bent portion 36. Further, by making the radius of curvature of the bent portion 36 the same, the stress generated in the bent portion 36 can be made uniform. Therefore, by forming the covering body 30 of the lead wire 20 so as to have a plurality of bent portions 36, the disconnection of the lead wire 20 can be suppressed, so that the reliability of the motor 1 can be improved.
  • the above-mentioned electric motor 1 is used, for example, as an electric motor 1 for rotationally driving a blower fan provided in an air conditioner.
  • the blower fan equipped with the motor 1 can be used, for example, in the indoor unit and the outdoor unit of the air conditioner.
  • the application of the motor 1 is not limited to the above, and it can also be used for a refrigeration cycle device having a blower fan other than an air conditioner, or an electric device having a blower fan other than the refrigeration cycle device.
  • the electric motor 1 can be applied to a rotating machine other than the blower fan, for example, a ventilation fan or the like.
  • the electric motor 1 can also be designed as a stepping motor for a decompression device of an air conditioner.
  • the electric motor 1 is a mold type DC brushless motor
  • the electric motor 1 of the present disclosure may be an electric motor 1 of a type other than the mold type DC brushless motor.
  • the stator 3 of the electric motor 1 does not have to be molded, and the main body portion of the stator 3 may be housed in a casing made of a thermoplastic resin.
  • FIG. 2 is a schematic view showing an example of the lead wire winding device 100 according to the second embodiment.
  • FIG. 3 is a schematic view showing the winding operation of the lead wire 20 in the lead wire winding device 100 according to the second embodiment. Since the structure of the motor 1 shown in FIGS. 2 and 3 is the same as that described in the first embodiment, the description thereof will be omitted.
  • the lead wire winding device 100 has a rotary table 50 that is rotatably arranged.
  • the rotary table 50 may be a mechanical type that is manually rotated by a handle or the like, or an electric drive type that is automatically rotated by using a rotary table drive motor.
  • the rotary table 50 has a rotating body 51, and the covering body 30 of the lead wire 20 is spirally wound and laminated by the rotation of the rotating body 51.
  • the rotating body 51 is formed as one column having a cylindrical shape, an elliptical column shape, or a long columnar shape, depending on the winding shape of the covering body 30, for example.
  • the rotating body 51 is provided with a clip 53.
  • the clip 53 is formed so as to grip the distal end 30a of the covering body 30.
  • the clip 53 is formed, for example, as an L-shaped hook so as to sandwich the distal end 30a of the covering body 30 between the clip 53 and the rotating body 51.
  • the rotating body 51 can be formed so as to have a plurality of pillars.
  • the rotating body 51 can be formed so as to have a first arm 51a in which the clip 53 is arranged and a second arm 51b arranged apart from the first arm 51a.
  • the rotating body 51 is formed so as to have the first arm 51a and the second arm 51b, and the winding width of the covering body 30 is adjusted by adjusting the distance between the first arm 51a and the second arm 51b. And the number of times can be determined. Therefore, if the rotating body 51 is formed so as to have the first arm 51a and the second arm 51b, and the distance between the first arm 51a and the second arm 51b can be adjusted, the winding of the covering body 30 can be wound.
  • the width and number of times can be adjusted arbitrarily. For example, the number of turns of the lead wire 20 can be adjusted to be the same regardless of the length of the lead wire 20.
  • the surfaces of the first arm 51a and the second arm 51b that come into contact with the coverings 30 are formed so as to be bent surfaces.
  • the first arm 51a and the second arm 51b may have a curved surface where the coverings 30 of the first arm 51a and the second arm 51b come into contact with each other. It can be formed as a columnar column.
  • the rotary table 50 has a base 55 on which the rotating body 51 is placed and supported. Further, the rotating body 51 has a shaft 57 which is fixed at the position of the center of gravity of the base 55, extends in the direction opposite to that of the rotating body 51, and serves as a rotation axis of the rotating body 51.
  • the base 55 can be formed so as to movably support the first arm 51a and the second arm 51b.
  • the lead wire winding device 100 has a pedestal 80 on which the rotation driving device 10 is placed and fixed.
  • a clamp 81 is provided on the pedestal 80, and the rotation driving device 10 is fastened to the pedestal 80 by the clamp 81.
  • the lead wire winding device 100 can be provided with an adjuster 83 that supports the pedestal 80 as a leg of the pedestal 80.
  • the adjuster 83 can be formed by using, for example, an adjuster bolt, but the present invention is not limited to this, and the adjuster 83 may be formed as a hydraulic cylinder.
  • the adjuster 83 can adjust the height of the pedestal 80 to determine the relative value of the height between the distal end 30a of the covering body 30 and the rotation driving device 10.
  • the optimum value of the relative height between the distal end 30a of the covering body 30 and the rotation driving device 10 is the length of the lead wire 20 and the covering body 30, the diameter of the covering body 30, and the wound lead wire 20. It depends on the tension that suppresses the relaxation of the covering body 30 and the winding time of the covering body 30 and the like. For example, when the length of the lead wire 20 is 1100 mm, the diameter of the lead wire 20 is 10 mm, and the width of the wound lead wire 20 in the longitudinal direction is 100 mm, the relative value of the height is 10 mm or more. It is necessary to make it, and it is preferably 30 mm.
  • the adjuster 83 may be formed as one adjuster 83 that supports the center of gravity of the pedestal 80, or may be formed so that the pedestal 80 is supported by a plurality of adjusters 83. Further, the adjuster 83 can be omitted when it is not necessary to adjust the relative value of the height between the distal end 30a of the covering body 30 and the rotation driving device 10.
  • the lead wire winding device 100 can be provided with a slider 85 that slidably supports the pedestal 80.
  • the slider 85 is formed so as to move the rotation driving device 10 in the direction of the distal end 30a of the covering body 30 to wind the covering body 30 of the lead wire 20 around the rotating body 51.
  • the slider 85 has, for example, a rail 85a that guides the pedestal 80 toward the rotary table 50, and a reciprocating table 85b that slides reciprocally on the rail 85a.
  • the slider 85 can be formed as an electrically driven device that moves at a constant speed in synchronization with the rotational movement of the rotary table 50. Further, the slider 85 may be formed so as to slide due to the tension of the lead wire 20 as the rotary table 50 rotates.
  • the lead wire winding device 100 By providing the lead wire winding device 100 with the slider 85, the covering body 30 of the lead wire 20 can be wound around the rotating body 51 at a constant speed, so that the covering body 30 can be wound uniformly, and the winding body 30 can be wound.
  • the shape can be stabilized. Therefore, by providing the lead wire winding device 100 with the slider 85, the same shape of the lead wire 20 in the final product motor 1 can be ensured, so that the work efficiency at the time of packing can be improved. Further, if the slider 85 is formed so as to slide by the tension of the lead wire 20, the configuration of the lead wire winding device 100 can be simplified, so that the manufacturing cost of the lead wire winding device 100 can be reduced.
  • the slider 85 can be omitted, for example, when the cover 30 of the lead wire 20 is wound while the rotary table 50 is brought close to the pedestal 80.
  • the lead wire winding device 100 can be provided with an equilibrium device 87 which is connected to the pedestal 80 and applies a constant tension to the lead wire 20.
  • an equilibrium device 87 for example, a traction device that supports the pedestal 80 with a constant force by connecting the pedestals 80 with a rope and pulling the pedestal 80 with a constant force is used.
  • the equilibrium device 87 may be a weight or a hydraulic cylinder as long as it supports the pedestal 80 with a constant force.
  • the balance device 87 in the lead wire winding device 100 By providing the balance device 87 in the lead wire winding device 100, the covering body 30 of the lead wire 20 is wound around the rotating body 51 in a state where a constant tension is applied to the lead wire 20, so that the lead wire 20 is wound. Relaxation due to its own weight can be suppressed. Therefore, by providing the balance device 87 in the lead wire winding device 100, the same shape of the lead wire 20 in the final product motor 1 can be ensured, so that the work efficiency at the time of packing can be improved.
  • the tension applied to the lead wire 20 by the equilibrium device 87 exceeds 50 N, the lead wire 20 can be relaxed due to its own weight, but the lead wire 20 is added more and the lead wire 20 is broken. there is a possibility. Therefore, the tension applied to the lead wire 20 by the equilibrium device 87 is preferably 50 N or less.
  • the equilibrium device 87 for example, when the cover 30 of the lead wire 20 is wound while the rotary table 50 is brought close to the pedestal 80, or the reciprocating table 85b of the slider 85 functions as a weight and becomes the lead wire 20. It can be omitted if it causes an applied tension.
  • the process of bundling the lead wires 20 of the electric motor 1 is performed manually, and the same shape of the lead wires 20 cannot be guaranteed, which causes a decrease in production efficiency.
  • a device for bundling power cables and the like for outdoor construction is known, but if a method of bundling power cables and the like for outdoor construction is adopted for the motor 1, the device cost becomes high, so that the lead of the motor 1 is mechanically used. The method of automatically bundling the wires 20 has not been put into practical use.
  • the lead wire winding device 100 of the second embodiment since the same shape of the lead wire 20 in the final product motor 1 can be ensured by a simple device, the work efficiency at the time of packing is improved. Can be made to. Therefore, according to the lead wire winding device 100 of the second embodiment, it is possible to suppress a decrease in the production efficiency of the electric motor 1 while reducing the manufacturing cost of the electric motor 1.
  • FIG. 4 is a flowchart showing a manufacturing process of the electric motor 1 by the lead wire winding device 100 according to the second embodiment. All or part of the steps shown below can be automated by the control device provided in the lead wire winding device 100.
  • step S1 the rotation drive device 10 is fastened to the pedestal 80 by the clamp 81.
  • step S2 the distal end 30a of the covering body 30 of the lead wire 20 is gripped by the clip 53.
  • step S2 the position of the pedestal 80 can be adjusted by the slider 85 so that the lead wire 20 is in an extended state.
  • step S3 the distance between the first arm 51a and the second arm 51b is adjusted by the first arm 51a and the second arm 51b of the rotating body 51, and the winding width and the number of windings of the covering body 30 are determined.
  • step S4 the height of the pedestal 80 is adjusted by the adjuster 83, and the relative value of the height between the distal end 30a of the covering body 30 and the rotation driving device 10 is determined.
  • step S5 the equilibrium device 87 applies a constant tension to the lead wire 20.
  • steps S3 to S5 can be omitted depending on the structure of the lead wire winding device 100 or the type of the motor 1 to be manufactured.
  • step S6 the covering body 30 of the lead wire 20 is wound by the rotation of the rotating body 51.
  • the rotation driving device 10 can be moved in the direction of the distal end 30a of the covering body 30 to wind the covering body 30.
  • the rotation driving device 10 is provided with a constant tension applied to the lead wire 20.
  • the covering body 30 can be wound by moving the covering body 30.
  • the electric motor 1 is removed from the lead wire winding device 100, the manufacturing process of the electric motor 1 is completed, and if there is another electric motor 1 to be manufactured, the steps S1 to S6 are repeated.
  • the same shape of the lead wire 20 in the final product electric motor 1 can be ensured by a simple method. Therefore, the manufacturing of the electric motor 1 is automated and the work at the time of packing is performed. Efficiency can be improved. Therefore, according to the lead wire winding device 100 of the second embodiment, it is possible to suppress a decrease in the production efficiency of the electric motor 1 while reducing the manufacturing cost of the electric motor 1.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

This electric motor is provided with a lead wire which is connected to the outer shell of a rotary drive for converting power to rotational energy and which supplies power to the rotary drive; the lead wire has a covering which covers multiple coated wires, including a wire for supplying power to the rotary drive, and which is spirally wound and stacked together with the coated wires. Further, the lead wire winding device and the manufacturing method of the electric motor are for manufacturing the aforementioned electric motor.

Description

電動機、リード線巻回装置、及び電動機の製造方法Manufacturing method of motor, lead wire winding device, and motor
　本開示は、電力供給用のリード線を有する電動機、当該電動機のリード線を巻き取るためのリード線巻回装置、及び当該電動機の製造方法に関する。 The present disclosure relates to an electric motor having a lead wire for power supply, a lead wire winding device for winding the lead wire of the electric motor, and a manufacturing method of the electric motor.
　特許文献１には、複数の電線が被覆材によって被覆されたリード線を有する電動機が開示されている。 Patent Document 1 discloses an electric motor having a lead wire in which a plurality of electric wires are coated with a covering material.
特開２０１４－８７２１９号公報Japanese Unexamined Patent Publication No. 2014-87219
　従来、電動機のリード線を束ねる必要がある場合、リード線は手動で折り曲げられてきた。しかしながら、リード線を手動で屈曲した場合、屈曲方法によっては、リード線の一部に過度な応力が発生し、電線の断線が発生する可能性があった。 Conventionally, when it is necessary to bundle the lead wires of a motor, the lead wires have been manually bent. However, when the lead wire is manually bent, depending on the bending method, excessive stress may be generated in a part of the lead wire, which may cause disconnection of the electric wire.
　本開示は、上述の課題を解決するものであり、電線の断線の発生を抑制可能な電動機、リード線巻回装置、及び電動機の製造方法を提供することを目的とする。 The present disclosure is to solve the above-mentioned problems, and an object of the present disclosure is to provide an electric motor, a lead wire winding device, and a method for manufacturing the electric motor, which can suppress the occurrence of disconnection of an electric wire.
　本開示の電動機は、電力を回転エネルギーに変換する回転駆動装置と、前記回転駆動装置の外郭に接続され、前記電力を前記回転駆動装置に供給するリード線とを備え、前記リード線は、前記電力を前記回転駆動装置に供給する電線を含む複数の被覆電線と、前記複数の被覆電線を被覆し、前記複数の被覆電線とともに、らせん形状に巻回されて積層された被覆体とを有している。 The electric motor of the present disclosure includes a rotary drive device that converts electric power into rotational energy, and a lead wire that is connected to the outer shell of the rotary drive device and supplies the electric power to the rotary drive device. It has a plurality of coated electric wires including an electric wire that supplies electric power to the rotary drive device, and a covering body that covers the plurality of coated electric wires and is wound and laminated in a spiral shape together with the plurality of coated electric wires. ing.
　また、本開示のリード線巻回装置は、上述の電動機を製造するためのリード線巻回装置であって、前記回転駆動装置を締結するクランプを有する台座と、前記被覆体の遠位端を把持するクリップと、前記クリップが配置された回転体とを有し、前記回転体の回転により前記被覆体を前記回転体に巻回させる回転台とを備える。 Further, the lead wire winding device of the present disclosure is a lead wire winding device for manufacturing the above-mentioned electric motor, and has a pedestal having a clamp for fastening the rotation driving device and a distal end of the covering body. It has a clip to be gripped and a rotating body on which the clip is arranged, and includes a turntable around which the covering body is wound around the rotating body by the rotation of the rotating body.
　また、本開示の電動機の製造方法は、上述の電動機の製造方法であって、前記回転駆動装置を締結する工程と、前記被覆体の遠位端を把持する工程と、前記被覆体を巻回させる工程とを有する。 Further, the method for manufacturing an electric motor of the present disclosure is the above-mentioned method for manufacturing an electric motor, which includes a step of fastening the rotary drive device, a step of gripping the distal end of the covering body, and a winding of the covering body. It has a step of making it.
　本開示では、リード線の被覆体がらせん形状に巻回されて積層されるため、リード線の一部に過度な応力が発生しない。したがって、被覆体に覆われた被覆電線の断線を抑制できる。 In the present disclosure, since the lead wire covering is wound in a spiral shape and laminated, excessive stress is not generated in a part of the lead wire. Therefore, it is possible to suppress disconnection of the covered electric wire covered with the covering body.
実施の形態１に係る電動機の一例を示した斜視図である。It is a perspective view which showed an example of the electric motor which concerns on Embodiment 1. FIG. 実施の形態２に係るリード線巻回装置の一例を示した概略図である。It is the schematic which showed an example of the lead wire winding apparatus which concerns on Embodiment 2. FIG. 実施の形態２に係るリード線巻回装置１００におけるリード線２０の巻回動作を示した概略図である。It is the schematic which showed the winding operation of the lead wire 20 in the lead wire winding apparatus 100 which concerns on Embodiment 2. FIG. 実施の形態２に係るリード線巻回装置による電動機の製造工程を示すフローチャートである。It is a flowchart which shows the manufacturing process of the electric motor by the lead wire winding device which concerns on Embodiment 2.
実施の形態１．
　実施の形態１に係る電動機１について、図１を用いて説明する。図１は、実施の形態１に係る電動機１の一例を示した斜視図である。なお、図１を含む以下の図面では、各構成部材の寸法の関係及び形状が、実際のものとは異なる場合がある。また、以下の図面では、同一の部材若しくは部分又は同一の機能を有する部材若しくは部分には、同一の符号を付すか、又は符号を付すことを省略している。 Embodiment 1.
The electric motor 1 according to the first embodiment will be described with reference to FIG. FIG. 1 is a perspective view showing an example of the electric motor 1 according to the first embodiment. In the following drawings including FIG. 1, the dimensional relationship and shape of each component may differ from the actual ones. Further, in the following drawings, the same members or parts or members or parts having the same functions are designated by the same reference numerals or omitted.
　電動機１は、例えば、モールド型のＤＣブラシレスモータとして形成される。電動機１は、中空円筒形状の外観を有する固定子３と、固定子３の中空部分に摺動自在に収容された回転子５とを有する回転駆動装置１０を備える。回転駆動装置１０は、固定子３と回転子５とにより形成される円筒形状の外郭１０ａを有している。また、電動機１は、回転駆動装置１０の外郭１０ａに接続され、電力を回転駆動装置１０に供給するリード線２０を備える。 The motor 1 is formed as, for example, a mold-type DC brushless motor. The electric motor 1 includes a rotary drive device 10 having a stator 3 having a hollow cylindrical appearance and a rotor 5 slidably housed in a hollow portion of the stator 3. The rotation drive device 10 has a cylindrical outer shell 10a formed by the stator 3 and the rotor 5. Further, the electric motor 1 includes a lead wire 20 which is connected to the outer shell 10a of the rotary drive device 10 and supplies electric power to the rotary drive device 10.
　回転駆動装置１０においては、リード線２０を介して供給された電力が、回転エネルギーに変換される。回転駆動装置１０においては、リード線２０を介して供給された電力により、固定子３で磁界が発生し、固定子３で発生した磁界の経時的変化により、回転子５が回転する。 In the rotary drive device 10, the electric power supplied through the lead wire 20 is converted into rotational energy. In the rotary drive device 10, a magnetic field is generated in the stator 3 by the electric power supplied through the lead wire 20, and the rotor 5 rotates due to a change in the magnetic field generated in the stator 3 with time.
　固定子３は、図示しないが、中空円筒形状の固定子鉄心と、固定子鉄心の一対の中空円板面に配置されたインシュレータと、及び銅製マグネットワイヤ等のワイヤを固定子鉄心とインシュレータとに巻回して形成されたコイルとを含む本体部分を有している。固定子３においては、コイルに電流が流れることにより、固定子鉄心の中空側に磁界が発生する。コイルに流れる電流が交流電流の場合、固定子鉄心の中空側に発生する磁界は、経時的に変化する。 Although the stator 3 is not shown, a hollow cylindrical stator core, an insulator arranged on a pair of hollow disk surfaces of the stator core, and a wire such as a copper magnet wire are used as the stator core and the insulator. It has a main body portion including a coil formed by winding. In the stator 3, a magnetic field is generated on the hollow side of the stator core by the current flowing through the coil. When the current flowing through the coil is an alternating current, the magnetic field generated on the hollow side of the stator core changes with time.
　固定子３の本体部分は、不飽和ポリエステル樹脂を主成分としたバルクモールディングコンパウンド等の熱硬化性樹脂に覆われている。固定子３は、固定子３の本体部分と固定子３の本体部分に電気的に接続されたリード線２０の先端とを鋳型に配置し、熱硬化性樹脂を鋳型に射出して充填することによりモールド成形される。モールド成形は、圧縮成形によってなされてもよい。なお、バルクモールディングコンパウンドは、ＢＭＣと略称される。 The main body of the stator 3 is covered with a thermosetting resin such as a bulk molding compound containing an unsaturated polyester resin as a main component. In the stator 3, the main body portion of the stator 3 and the tip of the lead wire 20 electrically connected to the main body portion of the stator 3 are arranged in a mold, and a thermosetting resin is injected into the mold to fill the mold. Molded by. Molding may be done by compression molding. The bulk molding compound is abbreviated as BMC.
　回転子５は、図示しないが、固定子３の方向に向けて放射状に磁界を発生させる樹脂マグネットを有している。樹脂マグネットは、サマリウム鉄等の希土類マグネットの粉末又はネオジム－鉄－ホウ素粉末等のフェライト粉末を、ナイロン等のポリアミド樹脂、又はポリフェニレンスルファイド樹脂といった熱可塑性樹脂に含有させた原料で、ボンド磁石として成形される。樹脂マグネットには、２の倍数個の磁極が形成されている。樹脂マグネットは、回転子５の外周に配置され、樹脂マグネットの磁極は、回転子５の周方向に沿って極性が交互となるように形成される。例えば、樹脂マグネットには、磁極が８個形成され、Ｎ極及びＳ極がそれぞれ４個ずつ、周方向に交互となるように形成される。固定子３で発生する磁界の経時的変化により、回転子５は、回転子５の軸を中心として周方向に回転する。 Although not shown, the rotor 5 has a resin magnet that radially generates a magnetic field in the direction of the stator 3. The resin magnet is a raw material in which a powder of a rare earth magnet such as samarium iron or a ferrite powder such as neodymium-iron-boron powder is contained in a polyamide resin such as nylon or a thermoplastic resin such as polyphenylene sulfide resin, and is used as a bond magnet. It is molded. A multiple of 2 magnetic poles are formed on the resin magnet. The resin magnet is arranged on the outer periphery of the rotor 5, and the magnetic poles of the resin magnet are formed so that the polarities alternate along the circumferential direction of the rotor 5. For example, in the resin magnet, eight magnetic poles are formed, and four N poles and four S poles are formed so as to alternate in the circumferential direction. The rotor 5 rotates in the circumferential direction about the axis of the rotor 5 due to the change of the magnetic field generated in the stator 3 with time.
　回転駆動装置１０の外郭１０ａに接続されたリード線２０は、複数の被覆電線２２を有している。複数の被覆電線２２の一方の末端は、外郭１０ａの引込口１０ａ１から固定子３の内部に引き込まれている。複数の被覆電線２２の他方の末端には、第１コネクタ２４ａ又は第２コネクタ２４ｂが接続されている。以降の説明においては、特に区別する必要がない場合、第１コネクタ２４ａ及び第２コネクタ２４ｂを、コネクタ２４と総称する。 The lead wire 20 connected to the outer shell 10a of the rotary drive device 10 has a plurality of covered electric wires 22. One end of the plurality of covered electric wires 22 is drawn into the stator 3 from the entrance 10a1 of the outer shell 10a. A first connector 24a or a second connector 24b is connected to the other end of the plurality of covered electric wires 22. In the following description, the first connector 24a and the second connector 24b are collectively referred to as a connector 24 when it is not necessary to distinguish them.
　第１コネクタ２４ａは、例えば、スイッチング制御により電動機１に電力を供給し、電動機１の回転数制御を行うインバータ回路に接続される。電動機１が三相同期電動機である場合、第１コネクタ２４ａには、電力を回転駆動装置１０に供給するＵ相電線、Ｖ相電線、及びＷ相電線といった３本の電線が接続される。なお、回転駆動装置１０に電力を供給する電線の本数は、電動機１の形式により異なる。例えば、電動機１が単相電動機である場合、電力を回転駆動装置１０に供給する電線の本数は１本となる。 The first connector 24a is connected to, for example, an inverter circuit that supplies electric power to the motor 1 by switching control and controls the rotation speed of the motor 1. When the electric motor 1 is a three-phase synchronous electric motor, three electric wires such as a U-phase electric wire, a V-phase electric wire, and a W-phase electric wire for supplying electric power to the rotary drive device 10 are connected to the first connector 24a. The number of electric wires for supplying electric power to the rotary drive device 10 differs depending on the type of the motor 1. For example, when the motor 1 is a single-phase motor, the number of electric wires for supplying electric power to the rotary drive device 10 is one.
　第２コネクタ２４ｂは、例えば、インバータ回路に制御信号を送信し、インバータ回路のスイッチング制御を行う制御回路に接続される。電動機１が三相同期電動機である場合、第２コネクタ２４ｂには、例えば、４本の通信線及び１本の中性線が接続される。通信線は、例えば、固定子３に内蔵されたＵ相電流を検知するＵ相電流センサ、Ｖ相電流を検知するＶ相電流センサ、Ｗ相電流を検知するＷ相電流センサ、及び回転子５の位置を検知する磁気センサに接続される。また、中性線は、第２コネクタ２４ｂを介して中性点接地がなされるものであり、固定子３内部の電気配線の中性点端子に接続される。なお、Ｕ相電流センサ、Ｖ相電流センサ、Ｗ相電流センサ、磁気センサ、及び中性点端子は、図１に示していない。また、Ｕ相電流センサ、Ｖ相電流センサ、Ｗ相電流センサ、及び磁気センサは、例えば、アンチモン化インジウム又はガリウムヒ素を材質としたホール素子で形成される。なお、通信線の本数は、電動機１の形式により異なり、通信線を省略することも可能である。 The second connector 24b is connected to, for example, a control circuit that transmits a control signal to the inverter circuit and controls switching of the inverter circuit. When the motor 1 is a three-phase synchronous motor, for example, four communication lines and one neutral line are connected to the second connector 24b. The communication line includes, for example, a U-phase current sensor that detects a U-phase current built in the stator 3, a V-phase current sensor that detects a V-phase current, a W-phase current sensor that detects a W-phase current, and a rotor 5. It is connected to a magnetic sensor that detects the position of the current. Further, the neutral wire is grounded at the neutral point via the second connector 24b, and is connected to the neutral point terminal of the electrical wiring inside the stator 3. The U-phase current sensor, V-phase current sensor, W-phase current sensor, magnetic sensor, and neutral point terminal are not shown in FIG. The U-phase current sensor, V-phase current sensor, W-phase current sensor, and magnetic sensor are formed of, for example, Hall elements made of indium antimonide or gallium arsenic. The number of communication lines varies depending on the type of the motor 1, and the communication lines can be omitted.
　なお、リード線２０のコネクタ２４の個数は、第１コネクタ２４ａ及び第２コネクタ２４ｂの２つでなくてもよい。例えば、リード線２０は、３以上のコネクタ２４を有していても良いし、コネクタ２４を１つのみ有していてもよい。 The number of connectors 24 of the lead wire 20 does not have to be two, that is, the first connector 24a and the second connector 24b. For example, the lead wire 20 may have three or more connectors 24, or may have only one connector 24.
　リード線２０は、複数の被覆電線２２をまとめて被覆する被覆体３０を有している。被覆体３０は、例えば、シリコーンゴム等により管状に形成されており、回転駆動装置１０の外郭１０ａの引込口１０ａ１とコネクタ２４との間に拡がって配置されている。本開示においては、コネクタ２４側の被覆体３０の末端を、被覆体３０の遠位端３０ａと称し、引込口１０ａ１側の被覆体３０の末端を、被覆体３０の近位端３０ｂと称する。被覆体３０の近位端３０ｂには、被覆体３０の移動を抑制するための結束バンド３２が設けられている。 The lead wire 20 has a covering body 30 that collectively covers a plurality of covered electric wires 22. The covering body 30 is formed in a tubular shape by, for example, silicone rubber or the like, and is arranged so as to extend between the inlet 10a1 of the outer shell 10a of the rotation driving device 10 and the connector 24. In the present disclosure, the end of the covering 30 on the connector 24 side is referred to as the distal end 30a of the covering 30, and the end of the covering 30 on the inlet 10a1 side is referred to as the proximal end 30b of the covering 30. A binding band 32 for suppressing the movement of the covering body 30 is provided at the proximal end 30b of the covering body 30.
　リード線２０の被覆体３０は、複数の被覆電線２２とともに、らせん形状に巻回されて積層されている。「らせん形状」に巻回され積層された被覆体３０は、円形形状には限られず、Ｏ字形状に巻回され積層されたものであれば、他の形状であってもよい。例えば、「らせん形状」に巻回され積層された被覆体３０は、楕円形状であってもよいし、長円形状であってもよい。リード線２０の被覆体３０が、長円形状に巻回される場合、リード線２０の被覆体３０は、複数の直線部３４と、複数の直線部３４と交互に配置された複数の屈曲部３６とを有するように形成できる。 The covering body 30 of the lead wire 20 is wound and laminated in a spiral shape together with a plurality of covered electric wires 22. The covering body 30 wound and laminated in a “spiral shape” is not limited to a circular shape, and may have another shape as long as it is wound and laminated in an O-shape. For example, the covering body 30 wound and laminated in a “spiral shape” may have an elliptical shape or an oval shape. When the covering body 30 of the lead wire 20 is wound in an oval shape, the covering body 30 of the lead wire 20 has a plurality of straight portions 34 and a plurality of bent portions alternately arranged with the plurality of straight portions 34. It can be formed to have 36 and.
　また、リード線２０の被覆体３０は、同一形状に積層することができる。なお、図１では、リード線２０の被覆体３０は、コネクタ２４が回転駆動装置１０を向くように巻回されているが、コネクタ２４が回転駆動装置１０から離れる方向を向くように巻回してもよい。 Further, the covering body 30 of the lead wire 20 can be laminated in the same shape. In FIG. 1, the cover 30 of the lead wire 20 is wound so that the connector 24 faces the rotation drive device 10, but the connector 24 is wound so as to face the direction away from the rotation drive device 10. May be good.
　リード線２０は、一般的には、直線形状に延びた状態で形成される。また、リード線２０は、電動機１の用途に応じて、多様な長さに形成される。リード線２０が直線形状に延びた状態では、リード線２０が長くなるにつれて、例えば、製造工程において、リード線２０が製造機に絡まる等の理由で過度な応力が生じ、リード線２０に断線等の損傷が生じる可能性が高くなる。また、電動機１の検査等の手作業の工程においても、リード線２０に過度な張力が生じ、リード線２０に断線等の損傷が生じる可能性がある。また、最終製品である電動機１を搬送する際に、リード線２０が直線形状に延びた状態では、電動機１の梱包時のリード線２０の収容を手作業で行うことにより、梱包作業の効率が低下する可能性がある。 The lead wire 20 is generally formed in a state of being extended in a straight line shape. Further, the lead wire 20 is formed into various lengths according to the use of the electric motor 1. In a state where the lead wire 20 extends in a linear shape, as the lead wire 20 becomes longer, excessive stress is generated due to, for example, the lead wire 20 being entangled with the manufacturing machine in the manufacturing process, and the lead wire 20 is disconnected or the like. Is more likely to be damaged. Further, even in a manual process such as inspection of the motor 1, excessive tension may be generated in the lead wire 20, and damage such as disconnection may occur in the lead wire 20. Further, when the electric motor 1 which is the final product is conveyed, when the lead wire 20 is extended in a linear shape, the lead wire 20 at the time of packing the electric motor 1 is manually accommodated, so that the efficiency of the packing work is improved. May decrease.
　従来、直線形状に延びた状態で形成されたリード線２０を束ねる場合、リード線２０は手動で屈曲されてきたが、リード線２０の屈曲方法によっては、リード線２０の屈曲部分に過度な応力が発生し、リード線２０の断線等の損傷が発生する可能性があった。 Conventionally, when bundling the lead wires 20 formed in a linear shape, the lead wires 20 have been manually bent, but depending on the bending method of the lead wires 20, excessive stress is applied to the bent portion of the lead wires 20. May occur and damage such as disconnection of the lead wire 20 may occur.
　しかしながら、実施の形態１では、リード線２０の被覆体３０は、らせん形状に巻回されている。リード線２０の被覆体３０をらせん形状に巻回することにより、リード線２０の一部に過度な応力が加わることを抑制できる。したがって、リード線２０の被覆体３０をらせん形状に巻回することにより、リード線２０の断線を抑制できるため、電動機１の信頼性を向上させることができる。 However, in the first embodiment, the covering body 30 of the lead wire 20 is wound in a spiral shape. By winding the covering body 30 of the lead wire 20 in a spiral shape, it is possible to prevent an excessive stress from being applied to a part of the lead wire 20. Therefore, by winding the covering body 30 of the lead wire 20 in a spiral shape, the disconnection of the lead wire 20 can be suppressed, so that the reliability of the motor 1 can be improved.
　また、リード線２０の被覆体３０をらせん形状に巻回して積層することにより、リード線２０は同一形状に巻回される。したがって、リード線２０の巻回数が増加しても、巻回されたリード線２０の形状が膨張しないため、巻回形状を安定させることができる。また、リード線２０を同一形状に巻回することにより、最終製品である電動機１の搬送時における、リード線２０を結束する作業が容易となる。また、電動機１の搬送容器に、リード線２０の収容部分を形成している場合には、リード線２０を同一形状に巻回することにより、容易にリード線２０を搬送容器に収容できるため、搬送時における梱包作業の作業効率が向上する。 Further, the lead wire 20 is wound in the same shape by winding the covering body 30 of the lead wire 20 in a spiral shape and laminating them. Therefore, even if the number of windings of the lead wire 20 is increased, the shape of the wound lead wire 20 does not expand, so that the winding shape can be stabilized. Further, by winding the lead wire 20 into the same shape, the work of bundling the lead wire 20 at the time of transporting the final product, the motor 1, becomes easy. Further, when the lead wire 20 accommodating portion is formed in the transport container of the motor 1, the lead wire 20 can be easily accommodated in the transport container by winding the lead wire 20 in the same shape. The work efficiency of packing work during transportation is improved.
　また、リード線２０の被覆体３０を、複数の直線部３４を有するように形成することにより、一定の幅でリード線２０の被覆体３０を巻回できる。上述したように、リード線２０は、電動機１の用途に応じて、多様な長さに形成されるが、直線部３４の長さを調節することにより、リード線２０の長さに依存せずに、リード線２０の巻回数を同一とすることができる。したがって、電動機１の製造時において、積層方向におけるリード線２０の巻き始め位置及び巻き終わり位置をリード線２０の長さに応じて調整することが不要となるため、電動機１の製造効率が向上する。 Further, by forming the covering body 30 of the lead wire 20 so as to have a plurality of straight portions 34, the covering body 30 of the lead wire 20 can be wound with a constant width. As described above, the lead wire 20 is formed into various lengths depending on the application of the motor 1, but by adjusting the length of the straight line portion 34, the lead wire 20 does not depend on the length of the lead wire 20. In addition, the number of turns of the lead wire 20 can be the same. Therefore, at the time of manufacturing the motor 1, it is not necessary to adjust the winding start position and winding end position of the lead wire 20 in the stacking direction according to the length of the lead wire 20, so that the manufacturing efficiency of the motor 1 is improved. ..
　また、リード線２０の被覆体３０を、複数の屈曲部３６を有するように形成することにより、リード線２０の一部に過度な応力が発生することを抑制できる。屈曲部３６に発生する応力は、屈曲部３６の曲率半径を調節することにより調整できる。また、屈曲部３６の曲率半径を同一とすることにより、屈曲部３６に発生する応力を均一化できる。したがって、リード線２０の被覆体３０を、複数の屈曲部３６を有するように形成することにより、リード線２０の断線を抑制できるため、電動機１の信頼性を向上させることができる。 Further, by forming the covering body 30 of the lead wire 20 so as to have a plurality of bent portions 36, it is possible to suppress the generation of excessive stress in a part of the lead wire 20. The stress generated in the bent portion 36 can be adjusted by adjusting the radius of curvature of the bent portion 36. Further, by making the radius of curvature of the bent portion 36 the same, the stress generated in the bent portion 36 can be made uniform. Therefore, by forming the covering body 30 of the lead wire 20 so as to have a plurality of bent portions 36, the disconnection of the lead wire 20 can be suppressed, so that the reliability of the motor 1 can be improved.
　なお、上述した電動機１は、例えば、空気調和機に設けられた送風ファンを回転駆動させる電動機１として用いられる。電動機１を搭載した送風ファンは、例えば、空気調和機の室内機及び室外機に用いることができる。また、電動機１の用途は、上述に限られず、空気調和機以外の送風ファンを有する冷凍サイクル装置、又は冷凍サイクル装置以外の送風ファンを有する電気機器に用いることもできる。また、電動機１は送風ファン以外の回転機械、例えば、換気扇等に適用することも可能である。また、電動機１は、空気調和機の減圧装置用のステッピングモータとして設計することも可能である。 The above-mentioned electric motor 1 is used, for example, as an electric motor 1 for rotationally driving a blower fan provided in an air conditioner. The blower fan equipped with the motor 1 can be used, for example, in the indoor unit and the outdoor unit of the air conditioner. Further, the application of the motor 1 is not limited to the above, and it can also be used for a refrigeration cycle device having a blower fan other than an air conditioner, or an electric device having a blower fan other than the refrigeration cycle device. Further, the electric motor 1 can be applied to a rotating machine other than the blower fan, for example, a ventilation fan or the like. The electric motor 1 can also be designed as a stepping motor for a decompression device of an air conditioner.
　また、上述では、電動機１がモールド型のＤＣブラシレスモータである場合について説明したが、本開示の電動機１は、モールド型のＤＣブラシレスモータ以外の形式の電動機１であってもよい。また、電動機１の固定子３は、モールド成形しなくてもよく、固定子３の本体部分を熱可塑性樹脂のケーシングに収容したものであってもよい。 Further, in the above description, the case where the electric motor 1 is a mold type DC brushless motor has been described, but the electric motor 1 of the present disclosure may be an electric motor 1 of a type other than the mold type DC brushless motor. Further, the stator 3 of the electric motor 1 does not have to be molded, and the main body portion of the stator 3 may be housed in a casing made of a thermoplastic resin.
実施の形態２．
　実施の形態２では、実施の形態１の電動機１の製造のためのリード線巻回装置１００について、図２及び図３を用いて説明する。図２は、実施の形態２に係るリード線巻回装置１００の一例を示した概略図である。図３は、実施の形態２に係るリード線巻回装置１００におけるリード線２０の巻回動作を示した概略図である。なお、図２及び図３に示した電動機１の構造は、上述の実施の形態１に記載した物と同一のため説明は省略する。 Embodiment 2.
In the second embodiment, the lead wire winding device 100 for manufacturing the electric motor 1 of the first embodiment will be described with reference to FIGS. 2 and 3. FIG. 2 is a schematic view showing an example of the lead wire winding device 100 according to the second embodiment. FIG. 3 is a schematic view showing the winding operation of the lead wire 20 in the lead wire winding device 100 according to the second embodiment. Since the structure of the motor 1 shown in FIGS. 2 and 3 is the same as that described in the first embodiment, the description thereof will be omitted.
　リード線巻回装置１００は、回転自在に配置された回転台５０を有している。回転台５０は、ハンドル等により手動で回転させる機械式のものであってもよいし、回転台駆動用電動機を用いて自動的に回転させる電気駆動式のものであってもよい。 The lead wire winding device 100 has a rotary table 50 that is rotatably arranged. The rotary table 50 may be a mechanical type that is manually rotated by a handle or the like, or an electric drive type that is automatically rotated by using a rotary table drive motor.
　回転台５０は、回転体５１を有しており、回転体５１の回転により、リード線２０の被覆体３０をらせん形状に巻回し積層させる。回転体５１は、例えば、被覆体３０の巻回形状に応じて、円柱形状、楕円柱形状、又は、長円柱形状の１本の柱として形成される。 The rotary table 50 has a rotating body 51, and the covering body 30 of the lead wire 20 is spirally wound and laminated by the rotation of the rotating body 51. The rotating body 51 is formed as one column having a cylindrical shape, an elliptical column shape, or a long columnar shape, depending on the winding shape of the covering body 30, for example.
　また、回転体５１には、クリップ５３が設けられている。クリップ５３は、被覆体３０の遠位端３０ａを把持するように形成される。クリップ５３は、例えば、Ｌ字形状のフックとして被覆体３０の遠位端３０ａを、クリップ５３と回転体５１との間に狭持するように形成される。 Further, the rotating body 51 is provided with a clip 53. The clip 53 is formed so as to grip the distal end 30a of the covering body 30. The clip 53 is formed, for example, as an L-shaped hook so as to sandwich the distal end 30a of the covering body 30 between the clip 53 and the rotating body 51.
　また、回転体５１は、複数の柱を有するように形成できる。例えば、回転体５１は、クリップ５３が配置された第１アーム５１ａと、第１アーム５１ａから離間して配置された第２アーム５１ｂとを有するように形成できる。回転体５１を、第１アーム５１ａと第２アーム５１ｂとを有するように形成し、第１アーム５１ａと第２アーム５１ｂとの間の距離を調整することにより、被覆体３０の巻回の幅及び回数を決定できる。したがって、回転体５１を、第１アーム５１ａと第２アーム５１ｂとを有するように形成し、第１アーム５１ａと第２アーム５１ｂとの間の距離を調整自在とすれば、被覆体３０の巻回の幅及び回数を任意に調整できる。例えば、リード線２０の巻回数は、リード線２０の長さに依存せずに、同一となるように調整できる。 Further, the rotating body 51 can be formed so as to have a plurality of pillars. For example, the rotating body 51 can be formed so as to have a first arm 51a in which the clip 53 is arranged and a second arm 51b arranged apart from the first arm 51a. The rotating body 51 is formed so as to have the first arm 51a and the second arm 51b, and the winding width of the covering body 30 is adjusted by adjusting the distance between the first arm 51a and the second arm 51b. And the number of times can be determined. Therefore, if the rotating body 51 is formed so as to have the first arm 51a and the second arm 51b, and the distance between the first arm 51a and the second arm 51b can be adjusted, the winding of the covering body 30 can be wound. The width and number of times can be adjusted arbitrarily. For example, the number of turns of the lead wire 20 can be adjusted to be the same regardless of the length of the lead wire 20.
　第１アーム５１ａ及び第２アーム５１ｂの被覆体３０が接触する面は、屈曲面となるように形成されている。第１アーム５１ａ及び第２アーム５１ｂの被覆体３０が接触する面を屈曲面とすることにより、被覆体３０の巻回時に、リード線２０に過度な応力が加わることを抑制できる。したがって、第１アーム５１ａ及び第２アーム５１ｂの被覆体３０が接触する面を屈曲面とすることにより、リード線２０の断線を抑制できるため、電動機１の信頼性を向上させることができる。 The surfaces of the first arm 51a and the second arm 51b that come into contact with the coverings 30 are formed so as to be bent surfaces. By setting the surface of the first arm 51a and the second arm 51b in contact with the covering body 30 as a bent surface, it is possible to prevent an excessive stress from being applied to the lead wire 20 when the covering body 30 is wound. Therefore, by setting the surface of the first arm 51a and the second arm 51b in contact with the covering body 30 as a bent surface, disconnection of the lead wire 20 can be suppressed, and the reliability of the motor 1 can be improved.
　なお、第１アーム５１ａ及び第２アーム５１ｂは、第１アーム５１ａ及び第２アーム５１ｂの被覆体３０が接触する面が屈曲面であればよく、例えば、円柱形状、楕円柱形状、又は、長円柱形状の柱として形成できる。 The first arm 51a and the second arm 51b may have a curved surface where the coverings 30 of the first arm 51a and the second arm 51b come into contact with each other. It can be formed as a columnar column.
　また、回転台５０は、回転体５１を載置し、支持するベース５５を有している。また、回転体５１は、ベース５５の重心位置に固定され、回転体５１と逆方向に延び、回転体５１の回転軸となるシャフト５７を有している。ベース５５は、第１アーム５１ａ及び第２アーム５１ｂを移動可能に支持するように形成できる。 Further, the rotary table 50 has a base 55 on which the rotating body 51 is placed and supported. Further, the rotating body 51 has a shaft 57 which is fixed at the position of the center of gravity of the base 55, extends in the direction opposite to that of the rotating body 51, and serves as a rotation axis of the rotating body 51. The base 55 can be formed so as to movably support the first arm 51a and the second arm 51b.
　また、リード線巻回装置１００は、回転駆動装置１０を載置して固定する台座８０を有している。台座８０にはクランプ８１が設けられており、クランプ８１により回転駆動装置１０は台座８０に締結される。 Further, the lead wire winding device 100 has a pedestal 80 on which the rotation driving device 10 is placed and fixed. A clamp 81 is provided on the pedestal 80, and the rotation driving device 10 is fastened to the pedestal 80 by the clamp 81.
　リード線巻回装置１００には、台座８０の脚部として、台座８０を支持するアジャスタ８３を設けることができる。アジャスタ８３は、例えば、アジャスタボルトを用いて形成することができるが、これに限られず、油圧シリンダとして形成してもよい。 The lead wire winding device 100 can be provided with an adjuster 83 that supports the pedestal 80 as a leg of the pedestal 80. The adjuster 83 can be formed by using, for example, an adjuster bolt, but the present invention is not limited to this, and the adjuster 83 may be formed as a hydraulic cylinder.
　アジャスタ８３は、台座８０の高さを調整して、被覆体３０の遠位端３０ａと回転駆動装置１０との間の高さの相対値を決定することができる。被覆体３０の遠位端３０ａと回転駆動装置１０との間の高さの相対値の最適値は、リード線２０及び被覆体３０の長さ、被覆体３０の直径、巻回したリード線２０の弛緩を抑制する張力、並びに被覆体３０の巻回時の等に依存する。例えば、リード線２０の長さが１１００ｍｍであり、リード線２０の直径が１０ｍｍであり、巻回したリード線２０の長手方向の幅が１００ｍｍである場合、高さの相対値は、１０ｍｍ以上とする必要があり、３０ｍｍであることが好ましい。 The adjuster 83 can adjust the height of the pedestal 80 to determine the relative value of the height between the distal end 30a of the covering body 30 and the rotation driving device 10. The optimum value of the relative height between the distal end 30a of the covering body 30 and the rotation driving device 10 is the length of the lead wire 20 and the covering body 30, the diameter of the covering body 30, and the wound lead wire 20. It depends on the tension that suppresses the relaxation of the covering body 30 and the winding time of the covering body 30 and the like. For example, when the length of the lead wire 20 is 1100 mm, the diameter of the lead wire 20 is 10 mm, and the width of the wound lead wire 20 in the longitudinal direction is 100 mm, the relative value of the height is 10 mm or more. It is necessary to make it, and it is preferably 30 mm.
　なお、アジャスタ８３は、台座８０の重心を支持する１本のアジャスタ８３として形成してもよいし、複数のアジャスタ８３で台座８０を支持するように形成してもよい。また、アジャスタ８３は、被覆体３０の遠位端３０ａと回転駆動装置１０との間の高さの相対値を調整する必要がない場合は省略できる。 The adjuster 83 may be formed as one adjuster 83 that supports the center of gravity of the pedestal 80, or may be formed so that the pedestal 80 is supported by a plurality of adjusters 83. Further, the adjuster 83 can be omitted when it is not necessary to adjust the relative value of the height between the distal end 30a of the covering body 30 and the rotation driving device 10.
　また、リード線巻回装置１００には、台座８０を摺動自在に支持するスライダ８５を設けることができる。スライダ８５は、被覆体３０の遠位端３０ａの方向に回転駆動装置１０を移動させてリード線２０の被覆体３０を回転体５１に巻回させるように形成されている。スライダ８５は、例えば、台座８０を回転台５０の方へ誘導するレール８５ａと、レール８５ａの上を往復可能に摺動する往復台８５ｂとを有している。 Further, the lead wire winding device 100 can be provided with a slider 85 that slidably supports the pedestal 80. The slider 85 is formed so as to move the rotation driving device 10 in the direction of the distal end 30a of the covering body 30 to wind the covering body 30 of the lead wire 20 around the rotating body 51. The slider 85 has, for example, a rail 85a that guides the pedestal 80 toward the rotary table 50, and a reciprocating table 85b that slides reciprocally on the rail 85a.
　スライダ８５は、回転台５０の回転運動に同期して、一定の速度で移動する電気駆動式の装置として形成できる。また、スライダ８５は、回転台５０の回転運動に伴い、リード線２０の張力により摺動するように形成してもよい。リード線巻回装置１００にスライダ８５を設けることにより、一定の速度でリード線２０の被覆体３０を回転体５１に巻回できるため、被覆体３０の巻回を均一に行うことでき、巻回形状を安定させることができる。したがって、リード線巻回装置１００にスライダ８５を設けることにより、最終製品である電動機１における、リード線２０の形状の同一性を担保できるため、梱包時の作業効率を向上させることができる。また、スライダ８５をリード線２０の張力により摺動するように形成すれば、リード線巻回装置１００の構成を簡素化できるため、リード線巻回装置１００の製造費用を低減することができる。 The slider 85 can be formed as an electrically driven device that moves at a constant speed in synchronization with the rotational movement of the rotary table 50. Further, the slider 85 may be formed so as to slide due to the tension of the lead wire 20 as the rotary table 50 rotates. By providing the lead wire winding device 100 with the slider 85, the covering body 30 of the lead wire 20 can be wound around the rotating body 51 at a constant speed, so that the covering body 30 can be wound uniformly, and the winding body 30 can be wound. The shape can be stabilized. Therefore, by providing the lead wire winding device 100 with the slider 85, the same shape of the lead wire 20 in the final product motor 1 can be ensured, so that the work efficiency at the time of packing can be improved. Further, if the slider 85 is formed so as to slide by the tension of the lead wire 20, the configuration of the lead wire winding device 100 can be simplified, so that the manufacturing cost of the lead wire winding device 100 can be reduced.
　なお、スライダ８５は、例えば、回転台５０を台座８０に近づけながら、リード線２０の被覆体３０を巻回する場合には、省略できる。 The slider 85 can be omitted, for example, when the cover 30 of the lead wire 20 is wound while the rotary table 50 is brought close to the pedestal 80.
　また、リード線巻回装置１００には、台座８０に連結され、リード線２０に一定の張力を付加する平衡装置８７を設けることができる。平衡装置８７としては、例えば、台座８０をロープで連結し、一定の力で牽引することにより台座８０を一定の力で支持する牽引装置が用いられる。また、平衡装置８７は、台座８０を一定の力で支持するものであれば、錘であってもよいし、油圧シリンダであってもよい。 Further, the lead wire winding device 100 can be provided with an equilibrium device 87 which is connected to the pedestal 80 and applies a constant tension to the lead wire 20. As the equilibrium device 87, for example, a traction device that supports the pedestal 80 with a constant force by connecting the pedestals 80 with a rope and pulling the pedestal 80 with a constant force is used. Further, the equilibrium device 87 may be a weight or a hydraulic cylinder as long as it supports the pedestal 80 with a constant force.
　リード線巻回装置１００に平衡装置８７を設けることにより、一定の張力がリード線２０に付加された状態でリード線２０の被覆体３０が回転体５１に巻回されるため、リード線２０の自重による弛緩を抑制できる。したがって、リード線巻回装置１００に平衡装置８７を設けることにより、最終製品である電動機１における、リード線２０の形状の同一性を担保できるため、梱包時の作業効率を向上させることができる。 By providing the balance device 87 in the lead wire winding device 100, the covering body 30 of the lead wire 20 is wound around the rotating body 51 in a state where a constant tension is applied to the lead wire 20, so that the lead wire 20 is wound. Relaxation due to its own weight can be suppressed. Therefore, by providing the balance device 87 in the lead wire winding device 100, the same shape of the lead wire 20 in the final product motor 1 can be ensured, so that the work efficiency at the time of packing can be improved.
　なお、平衡装置８７によりリード線２０に付加される張力は、５０Ｎを超えると、リード線２０の自重による弛緩は抑制できるものの、リード線２０の付加が大きくなり、リード線２０の断線が発生する可能性がある。したがって、平衡装置８７により、リード線２０に付加される張力は、５０Ｎ以下であることが好ましい。 If the tension applied to the lead wire 20 by the equilibrium device 87 exceeds 50 N, the lead wire 20 can be relaxed due to its own weight, but the lead wire 20 is added more and the lead wire 20 is broken. there is a possibility. Therefore, the tension applied to the lead wire 20 by the equilibrium device 87 is preferably 50 N or less.
　また、平衡装置８７は、例えば、回転台５０を台座８０に近づけながら、リード線２０の被覆体３０を巻回する場合、又は、スライダ８５の往復台８５ｂが錘として機能し、リード線２０に付加される張力を生じさせる場合には、省略できる。 Further, in the equilibrium device 87, for example, when the cover 30 of the lead wire 20 is wound while the rotary table 50 is brought close to the pedestal 80, or the reciprocating table 85b of the slider 85 functions as a weight and becomes the lead wire 20. It can be omitted if it causes an applied tension.
　以上に述べたように、リード線巻回装置１００を用いて、電動機１を製造することにより、電動機１のリード線２０を束ねる工程の自動化を図ることができ、電動機１の断線等による損傷を低減することができる。 As described above, by manufacturing the electric motor 1 by using the lead wire winding device 100, it is possible to automate the process of bundling the lead wires 20 of the electric motor 1, and damage due to disconnection of the electric motor 1 or the like can be achieved. Can be reduced.
　従来、電動機１のリード線２０を束ねる工程は、手作業で行われており、リード線２０の形状の同一性を担保できず、生産効率が低下する原因となっていた。一方、屋外工事用の電源ケーブル等を束ねる装置は知られているが、屋外工事用の電源ケーブル等を束ねる方法を電動機１に採用した場合、装置コストが高くなるため、機械で電動機１のリード線２０を自動的に束ねる方法は、実用化されていなかった。 Conventionally, the process of bundling the lead wires 20 of the electric motor 1 is performed manually, and the same shape of the lead wires 20 cannot be guaranteed, which causes a decrease in production efficiency. On the other hand, a device for bundling power cables and the like for outdoor construction is known, but if a method of bundling power cables and the like for outdoor construction is adopted for the motor 1, the device cost becomes high, so that the lead of the motor 1 is mechanically used. The method of automatically bundling the wires 20 has not been put into practical use.
　しかしながら、実施の形態２のリード線巻回装置１００によれば、簡便な装置で、最終製品である電動機１における、リード線２０の形状の同一性を担保できるため、梱包時の作業効率を向上させることができる。したがって、実施の形態２のリード線巻回装置１００によれば、電動機１の製造コストを低減しつつ、電動機１の生産効率の低下を抑制できる。 However, according to the lead wire winding device 100 of the second embodiment, since the same shape of the lead wire 20 in the final product motor 1 can be ensured by a simple device, the work efficiency at the time of packing is improved. Can be made to. Therefore, according to the lead wire winding device 100 of the second embodiment, it is possible to suppress a decrease in the production efficiency of the electric motor 1 while reducing the manufacturing cost of the electric motor 1.
　次に、電動機１の製造方法の一例として、リード線巻回装置１００を用いた電動機１の製造方法について、図４を用いて説明する。図４は、実施の形態２に係るリード線巻回装置１００による電動機１の製造工程を示すフローチャートである。なお、以下に示す工程の全て又は一部は、リード線巻回装置１００に設けられた制御装置により自動化して行うことも可能である。 Next, as an example of the manufacturing method of the motor 1, the manufacturing method of the motor 1 using the lead wire winding device 100 will be described with reference to FIG. FIG. 4 is a flowchart showing a manufacturing process of the electric motor 1 by the lead wire winding device 100 according to the second embodiment. All or part of the steps shown below can be automated by the control device provided in the lead wire winding device 100.
　ステップＳ１では、回転駆動装置１０がクランプ８１により台座８０に締結される。次に、ステップＳ２では、リード線２０の被覆体３０の遠位端３０ａが、クリップ５３に把持される。ステップＳ２においては、リード線２０が延びた状態となるように、台座８０の位置がスライダ８５により調整できる。 In step S1, the rotation drive device 10 is fastened to the pedestal 80 by the clamp 81. Next, in step S2, the distal end 30a of the covering body 30 of the lead wire 20 is gripped by the clip 53. In step S2, the position of the pedestal 80 can be adjusted by the slider 85 so that the lead wire 20 is in an extended state.
　ステップＳ３では、回転体５１の第１アーム５１ａ及び第２アーム５１ｂにより、第１アーム５１ａと第２アーム５１ｂとの間の距離が調整され、被覆体３０の巻回の幅及び回数が決定される。ステップＳ４では、アジャスタ８３により、台座８０の高さが調整され、被覆体３０の遠位端３０ａと回転駆動装置１０との間の高さの相対値が決定される。ステップＳ５では、平衡装置８７により、一定の張力がリード線２０に付加される。 In step S3, the distance between the first arm 51a and the second arm 51b is adjusted by the first arm 51a and the second arm 51b of the rotating body 51, and the winding width and the number of windings of the covering body 30 are determined. NS. In step S4, the height of the pedestal 80 is adjusted by the adjuster 83, and the relative value of the height between the distal end 30a of the covering body 30 and the rotation driving device 10 is determined. In step S5, the equilibrium device 87 applies a constant tension to the lead wire 20.
　なお、ステップＳ３～ステップＳ５については、リード線巻回装置１００の構造又は製造する電動機１の種類に応じて省略可能である。 Note that steps S3 to S5 can be omitted depending on the structure of the lead wire winding device 100 or the type of the motor 1 to be manufactured.
　ステップＳ６では、回転体５１の回転により、リード線２０の被覆体３０が巻回される。なお、リード線巻回装置１００にスライダ８５が設けられている場合、被覆体３０の遠位端３０ａの方向に回転駆動装置１０を移動させて被覆体３０を巻回することができる。また、リード線巻回装置１００に平衡装置８７が設けられている場合、又はスライダ８５の往復台８５ｂが錘として機能する場合、リード線２０に一定の張力を付加した状態で回転駆動装置１０を移動させて被覆体３０を巻回することができる。 In step S6, the covering body 30 of the lead wire 20 is wound by the rotation of the rotating body 51. When the lead wire winding device 100 is provided with the slider 85, the rotation driving device 10 can be moved in the direction of the distal end 30a of the covering body 30 to wind the covering body 30. Further, when the lead wire winding device 100 is provided with the balancing device 87, or when the reciprocating table 85b of the slider 85 functions as a weight, the rotation driving device 10 is provided with a constant tension applied to the lead wire 20. The covering body 30 can be wound by moving the covering body 30.
　その後、電動機１がリード線巻回装置１００から取り外されて、電動機１の製造工程は終了し、製造される別の電動機１がある場合は、ステップＳ１～Ｓ６の工程が繰り返される。 After that, the electric motor 1 is removed from the lead wire winding device 100, the manufacturing process of the electric motor 1 is completed, and if there is another electric motor 1 to be manufactured, the steps S1 to S6 are repeated.
　上述の電動機１の製造方法によれば、簡便な方法で、最終製品である電動機１における、リード線２０の形状の同一性を担保できるため、電動機１の製造を自動化するとともに、梱包時の作業効率を向上させることができる。したがって、実施の形態２のリード線巻回装置１００によれば、電動機１の製造コストを低減しつつ、電動機１の生産効率の低下を抑制できる。 According to the above-mentioned manufacturing method of the electric motor 1, the same shape of the lead wire 20 in the final product electric motor 1 can be ensured by a simple method. Therefore, the manufacturing of the electric motor 1 is automated and the work at the time of packing is performed. Efficiency can be improved. Therefore, according to the lead wire winding device 100 of the second embodiment, it is possible to suppress a decrease in the production efficiency of the electric motor 1 while reducing the manufacturing cost of the electric motor 1.
　１　電動機、３　固定子、５　回転子、１０　回転駆動装置、１０ａ　外郭、１０ａ１　引込口、２０　リード線、２２　被覆電線、２４　コネクタ、２４ａ　第１コネクタ、２４ｂ　第２コネクタ、３０　被覆体、３０ａ　遠位端、３０ｂ　近位端、３２　結束バンド、３４　直線部、３６　屈曲部、５０　回転台、５１　回転体、５１ａ　第１アーム、５１ｂ　第２アーム、５３　クリップ、５５　ベース、５７　シャフト、８０　台座、８１　クランプ、８３　アジャスタ、８５　スライダ、８５ａ　レール、８５ｂ　往復台、８７　平衡装置、１００　リード線巻回装置。 1 motor, 3 stator, 5 rotor, 10 rotary drive device, 10a outer shell, 10a1 lead-in port, 20 lead wire, 22 covered electric wire, 24 connector, 24a 1st connector, 24b 2nd connector, 30 covering body, 30a far Position end, 30b proximal end, 32 binding band, 34 straight part, 36 bending part, 50 turntable, 51 rotating body, 51a 1st arm, 51b 2nd arm, 53 clip, 55 base, 57 shaft, 80 pedestal, 81 clamp, 83 adjuster, 85 slider, 85a rail, 85b reciprocating stand, 87 balancing device, 100 lead wire winding device.

Claims (14)

  1. 　電力を回転エネルギーに変換する回転駆動装置と、
    　前記回転駆動装置の外郭に接続され、前記電力を前記回転駆動装置に供給するリード線と
    を備え、
    　前記リード線は、
    　前記電力を前記回転駆動装置に供給する電線を含む複数の被覆電線と、
    　前記複数の被覆電線を被覆し、前記複数の被覆電線とともに、らせん形状に巻回されて積層された被覆体と
    を有している
    電動機。     A rotary drive that converts electric power into rotational energy,
    It is provided with a lead wire connected to the outer shell of the rotary drive device and supplying the electric power to the rotary drive device.
    The lead wire is
    A plurality of coated electric wires including an electric wire for supplying the electric power to the rotary drive device, and
    An electric motor that covers the plurality of coated electric wires, and has a covering body that is spirally wound and laminated together with the plurality of coated electric wires.
  2. 　前記被覆体は、管状に形成されている
    請求項１に記載の電動機。     The motor according to claim 1, wherein the covering body is formed in a tubular shape.
  3. 　前記被覆体は、複数の直線部と、前記複数の直線部と交互に配置された複数の屈曲部とを有している
    請求項１又は２に記載の電動機。     The motor according to claim 1 or 2, wherein the covering body has a plurality of straight portions, and a plurality of bent portions alternately arranged with the plurality of straight portions.
  4. 　前記被覆体は、同一形状に積層されている
    請求項１～３のいずれか一項に記載の電動機。     The motor according to any one of claims 1 to 3, wherein the covering body is laminated in the same shape.
  5. 　請求項１～４のいずれか一項に記載の電動機を製造するためのリード線巻回装置であって、
    　前記回転駆動装置を締結するクランプを有する台座と、
    　前記被覆体の遠位端を把持するクリップと、前記クリップが配置された回転体とを有し、前記回転体の回転により前記被覆体を前記回転体に巻回させる回転台と
    を備えた
    リード線巻回装置。     A lead wire winding device for manufacturing the motor according to any one of claims 1 to 4.
    A pedestal having a clamp for fastening the rotary drive device, and
    A lead having a clip for gripping the distal end of the covering and a rotating body on which the clip is arranged, and a turntable for winding the covering around the rotating body by rotation of the rotating body. Wire winding device.
  6. 　前記回転体は、
    　前記クリップが配置された第１アームと、前記第１アームから離間して配置され第２アームとを有しており、
    　前記回転体は、前記第１アームと前記第２アームとの間の距離を調整自在に形成されており、
    　前記回転体は、
    　前記第１アームと前記第２アームとの間の距離を調整して、前記被覆体の巻回の幅及び回数を決定する
    請求項５に記載のリード線巻回装置。     The rotating body is
    It has a first arm in which the clip is arranged and a second arm in which the clip is arranged apart from the first arm.
    The rotating body is formed so that the distance between the first arm and the second arm can be adjusted.
    The rotating body is
    The lead wire winding device according to claim 5, wherein the distance between the first arm and the second arm is adjusted to determine the winding width and the number of times of winding the covering.
  7. 　前記台座を支持し、前記台座の高さを調整して、前記被覆体の遠位端と前記回転駆動装置との間の高さの相対値を決定するアジャスタを更に備えた
    請求項５又は６に記載のリード線巻回装置。     5. or 6 further comprising an adjuster that supports the pedestal and adjusts the height of the pedestal to determine the relative height between the distal end of the covering and the rotational drive. The lead wire winding device described in 1.
  8. 　前記台座を摺動自在に支持し、前記被覆体の遠位端の方向に前記回転駆動装置を移動させて前記被覆体を前記回転体に巻回させるスライダを更に備えた
    請求項５～７のいずれか一項に記載のリード線巻回装置。     Claims 5 to 7 further include a slider that slidably supports the pedestal and moves the rotation driving device in the direction of the distal end of the covering to wind the covering around the rotating body. The lead wire winding device according to any one of the following items.
  9. 　前記台座に連結され、前記リード線に一定の張力を付加した状態で前記被覆体の遠位端の方向に前記回転駆動装置を移動させる平衡装置を更に備えた
    請求項８に記載のリード線巻回装置。     The lead wire winding according to claim 8, further comprising a balance device which is connected to the pedestal and moves the rotation driving device in the direction of the distal end of the covering in a state where a constant tension is applied to the lead wire. Turning device.
  10. 　請求項１～４のいずれか一項に記載の電動機の製造方法であって、
    　前記回転駆動装置を締結する工程と、
    　前記被覆体の遠位端を把持する工程と、
    　前記被覆体を巻回させる工程と
    を有する
    電動機の製造方法。     The method for manufacturing an electric motor according to any one of claims 1 to 4.
    The process of fastening the rotary drive device and
    The step of gripping the distal end of the covering and
    A method for manufacturing an electric motor, which comprises a step of winding the covering body.
  11. 　前記被覆体の巻回の幅及び回数を決定する工程を更に有する
    請求項１０に記載の電動機の製造方法。     The method for manufacturing an electric motor according to claim 10, further comprising a step of determining the winding width and the number of times of winding the covering body.
  12. 　前記被覆体の遠位端の位置と回転駆動装置との間の高さの相対値を決定する工程を更に有する
    請求項１０又は１１に記載の電動機の製造方法。     The method for manufacturing an electric motor according to claim 10 or 11, further comprising a step of determining a relative value of a height between the position of the distal end of the covering and the rotation driving device.
  13. 　前記被覆体を巻回させる工程は、
    　前記被覆体の遠位端の方向に前記回転駆動装置を移動させて行われる
    請求項１０～１２のいずれか一項に記載の電動機の製造方法。     The step of winding the covering body is
    The method for manufacturing an electric motor according to any one of claims 10 to 12, wherein the rotation driving device is moved toward the distal end of the covering body.
  14. 　前記被覆体を巻回させる工程は、
    　前記リード線に一定の張力を付加した状態で、前記被覆体の遠位端の方向に前記回転駆動装置を移動させて行われる
    請求項１３に記載の電動機の製造方法。     The step of winding the covering body is
    The method for manufacturing an electric motor according to claim 13, wherein the rotation driving device is moved in the direction of the distal end of the covering body with a constant tension applied to the lead wire.
PCT/JP2020/016130 2020-04-10 2020-04-10 Electric motor, lead wire winding device, and electric motor manufacturing method WO2021205652A1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08168155A (en) * 1994-12-15 1996-06-25 Nkk Corp Power supply for elevating/lowering body
JP2008048525A (en) * 2006-08-14 2008-02-28 Yazaki Corp Structure for absorbing extra length of wire harness
WO2014061359A1 (en) * 2012-10-15 2014-04-24 三菱電機株式会社 Molded motor and air conditioner

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* Cited by examiner, † Cited by third party
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JP4531283B2 (en) 2001-03-30 2010-08-25 パナソニック株式会社 Storage case for wireless communication card
JP2014023372A (en) 2012-07-23 2014-02-03 Mitsubishi Electric Corp Manufacturing apparatus of former wound coil

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08168155A (en) * 1994-12-15 1996-06-25 Nkk Corp Power supply for elevating/lowering body
JP2008048525A (en) * 2006-08-14 2008-02-28 Yazaki Corp Structure for absorbing extra length of wire harness
WO2014061359A1 (en) * 2012-10-15 2014-04-24 三菱電機株式会社 Molded motor and air conditioner

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