WO2020129500A1 - Bobine moulée et son procédé de production - Google Patents

Bobine moulée et son procédé de production Download PDF

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Publication number
WO2020129500A1
WO2020129500A1 PCT/JP2019/044920 JP2019044920W WO2020129500A1 WO 2020129500 A1 WO2020129500 A1 WO 2020129500A1 JP 2019044920 W JP2019044920 W JP 2019044920W WO 2020129500 A1 WO2020129500 A1 WO 2020129500A1
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WO
WIPO (PCT)
Prior art keywords
terminals
pair
bobbin
wire
terminal
Prior art date
Application number
PCT/JP2019/044920
Other languages
English (en)
Japanese (ja)
Inventor
小島　康志
Original Assignee
株式会社不二工機
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 株式会社不二工機 filed Critical 株式会社不二工機
Priority to CN201980083876.8A priority Critical patent/CN113196424B/zh
Publication of WO2020129500A1 publication Critical patent/WO2020129500A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/29—Terminals; Tapping arrangements for signal inductances
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets

Definitions

  • the present invention relates to a mold coil (hereinafter referred to as a coil) and a method for manufacturing the same.
  • the coil includes a bobbin having a hollow tubular portion, a wire wound around the outer circumference of the tubular portion of the bobbin (generally called a magnet wire), and the start and end of the wire are connected. It has a pair of terminals. Each terminal is connected to a connector of an external device such as a power supply or a control device. The coil is excited by energizing the wire from an external device such as a power supply or a control device via these terminals.
  • An automatic winding machine is used to wind the wire around the outer circumference of the tubular part of the bobbin in the coil.
  • the terminal or terminals of the bobbin are routed from the automatic winding machine to the bobbin, that is, the outer circumference of the tubular part of the bobbin (which is sandwiched between the two flanges of the bobbin) so as not to interfere with the winding work. Part) is required to be placed.
  • each terminal is a member that relays the wire to the connector of the external device, depending on the positional relationship between the connector and the coil, it has to be arranged on the outer periphery of the cylindrical portion of the bobbin that interferes with the winding work. You may not get it. In such a case, in the related art, after the winding work is completed, the plurality of terminals are bent in the connecting direction of the connector.
  • the coil requires a connection mode with various connectors (external connectors) included in an external device, it is necessary to manufacture various types of coils in which the protruding direction and the protruding size of the contact with respect to the bobbin are different. There is also a problem that it is difficult to standardize parts.
  • the present invention has been made to solve the above-described problems, and there is no interference between a wire and a plurality of terminals during a wire winding operation, easy manufacture, and various connectors provided in an external device. It is an object of the present invention to provide an injection-molded coil and a method for manufacturing the same,
  • the injection-molded coil of the present invention is characterized by including the following. (1) A bobbin having a tubular part around which a wire is wound and a pair of flanges provided at both ends of the tubular part. (2) A pair of relay terminals provided on the bobbin so as to avoid a winding portion of the wire sandwiched between the pair of flanges, and the start end and the end of the wire being locked. (3) A pair of terminals, which are formed of a member different from the pair of relay terminals, are disposed at positions facing the winding portion of the wire, and are connected to the starting end or the terminating end of the wire. (4) A support portion that detachably supports the terminal with respect to the bobbin.
  • the terminal extends in the winding axis direction of the bobbin along a base portion that extends parallel to the surface of the flange and a surface of the wire that is bent and formed with respect to the base portion and that is wound around the tubular portion.
  • a bent portion and a contact provided at the tip of the bent portion are provided.
  • the contact is formed by bending the tip of the bent portion toward the outside of the coil in a direction parallel to the flange surface.
  • the lengths of the bent portions provided in the two terminals in the winding axis direction of the bobbin are different, and at least one of the terminals faces the bent portion or a portion of the contact on the bent portion side.
  • a step portion extending along the circumferential direction of the bobbin toward the other terminal side is provided, and the step portion causes the contacts of the two terminals to be arranged on the outer circumference of the wire in parallel with the winding axis direction of the bobbin. To be done.
  • the support portion is a support hole provided in the flange in a direction parallel to the flange surface and along the radial direction of the flange, and the base portion of the terminal has the base portion of the flange in the support hole. It is inserted from the outer peripheral direction.
  • a support hole for the relay terminal is provided in the flange in a direction along the support hole for the terminal, and the base portion of the relay terminal is inserted into the support hole from the outer peripheral direction of the flange.
  • the pair of relay terminals includes an opening cut out on the tip side and a pair of locking portions provided at the entrance of the relay terminal with the opening sandwiched therebetween, and the terminal is partially bent.
  • a protrusion that can be provided, the end of the wire is locked so as to straddle the opening with respect to the pair of locking portions, and the projection provided on the terminal is fitted into the opening.
  • An end of the wire straddling the opening is sandwiched between the terminal surface and the projecting piece.
  • the method for manufacturing an injection molded coil of the present invention has the following steps. (1) The starting end of the wire is locked to one of the pair of relay terminals, and the wire is wound around the outer circumference of the tubular portion of the bobbin by a winding machine. (2) The end of the wire is locked to the other of the pair of relay terminals. (3) The pair of terminals is fixed to the bobbin flange or the pair of relay terminals. (4) A start end or an end which is locked to the pair of relay terminals is connected to each of the pair of terminals. (5) A molding resin is injection-molded around the wire wound around the bobbin, the relay terminal, and the outer periphery of the terminal.
  • the terminal since the terminal does not exist on the outer periphery of the cylindrical portion of the bobbin when the wire is wound, the terminal does not interfere with the winding work. Moreover, by mounting the terminal on the bobbin after the winding, it is possible to cope with various positions and directions of the connector of the external device. In addition, by preparing various types of terminals and selecting an appropriate terminal according to the connection mode with the external device, it is possible to obtain various coils while sharing the bobbin and the relay terminal.
  • FIG. 1 Perspective view showing the internal configuration of the coil of the first embodiment.
  • FIG. 3 is a perspective view showing a coil including a terminal that does not have a protruding piece that holds a wire.
  • a perspective view showing a coil provided with a relay terminal provided with one locking portion at the wire end and a manufacturing process thereof A perspective view showing a coil provided with terminals having contacts arranged in a direction perpendicular to the axis of the bobbin.
  • the coil includes a bobbin 2 formed of a resin material such as ABS, polypropylene, PBT, and phenol, a wire 3 wound around the bobbin 2, a pair of relay terminals 4a supported by the bobbin 2, 4b and a pair of terminals 5a and 5b.
  • a resin material such as ABS, polypropylene, PBT, and phenol
  • the bobbin 2 has a tubular portion 21 around which the wire is wound, and a pair of flanges 22a and 22b provided at both ends of the tubular portion 21 so as to project outward in the radial direction.
  • a flat portion 24 protruding in a trapezoidal shape in the outer diameter direction is provided on a part of one flange 22a, and the flat portion 24 has support holes 25a and 25b for the relay terminals 4a and 4b and support holes for the terminals 5a and 5b. 26a and 26b are provided.
  • Each of the support holes 25a, 25b is a hole extending in the inner diameter direction of the flange 22a, and as shown in FIG. 3, the support holes 25a, 25b for the relay terminals 4a, 4b are provided in the upper stage with a wide interval, and Support holes 26a and 26b for 5a and 5b are provided in the lower stage with a slightly narrow interval.
  • the relay terminals 4a and 4b are formed of a plate-shaped metal member, and have a base portion 41 that is inserted into the support holes 25a and 25b from the outer peripheral direction (the outer side in the radial direction of the bobbin 2) and an opening that is cut out on the tip side thereof. A portion 42 and a pair of locking portions 43, 44 provided with the opening 42 interposed therebetween are provided.
  • the relay terminals 4a and 4b are such that the ends of the wire 3 are locked, and the start end 31a of the wire 3 is locked to one relay terminal 4a and the end 31b of the wire 3 is locked to the other relay terminal 4b. To be done. In this case, the starting end 31a and the terminating end 31b of the wire 3 are stretched so as to straddle the opening 42 between the locking portions 43 and 44 of the corresponding relay terminals 4a and 4b.
  • the terminals 5a and 5b are formed by bending a plate-shaped metal member.
  • Each of the terminals 5a and 5b is formed with a base portion 51 extending parallel to the surface of the flange 22a and a bend formed with respect to the base portion 51 and extending along the surface of the wire 3 wound around the bobbin 2 in the winding axis direction of the bobbin 2.
  • a portion 52 and a contact point 53 (contact point portion) provided at the tip of the bent portion 52 are provided.
  • the contact point 53 is formed by bending the tip of the bent portion 52 in the direction parallel to the surface of the flange 22a toward the outside of the coil (the radial direction of the bobbin 2).
  • Each of the bent portions 52 provided on the two terminals 5a and 5b has a different length in the winding axis direction of the bobbin 2 depending on the position of the contact point 53 provided at the tip thereof.
  • the bent portion 52 of the terminal 5a where the contact point 53 is located above the coil is short, and the bent portion 52 of the terminal 5b where the contact point is located below the coil is long.
  • each terminal 5a, 5b is provided with a step portion 54 extending between the bent portion 52 and the contact point 53 along the circumferential direction of the bobbin 2 toward the opposite terminal 5b side.
  • the step portion 54 arranges the contacts 53 of the two terminals 5a and 5b on the outer circumference of the wire 3 in parallel with the winding axis direction of the bobbin 2.
  • the contact point 53 is bent 90° with respect to the bent portion 52, so that the vertical width is larger than the plate thickness. I am trying. Further, the bent portions 52 and the contact points 53 of the terminals 5a and 5b are arranged so as to overlap the wire winding portion (cylindrical portion 21) of the bobbin 2 when viewed in the radial direction of the bobbin 2.
  • the terminals 5a and 5b are provided with foldable protrusions 55 on a part thereof.
  • the projecting piece 55 has a width that fits inside the opening 42 provided in the relay terminals 4a and 4b.
  • the relay terminals 4a and 4b and the terminals 5a and 5b are supported by the flange 22.
  • the ends 31a and 31b of the wires sandwiched between the projecting piece 55 that has entered the opening 42 and the main body surface of the terminals 5a and 5b the main body surface of the terminals 5a and 5b and the projecting piece 55 and
  • the ends 31a and 31b of the wire 3 are joined by fusing.
  • fusing is a type of resistance welding, and welding is performed by sandwiching the welding point between the upper and lower electrodes and energizing.
  • the outer periphery of the coil having the configuration as shown in FIG. 1 is coated with a molding resin by injection molding, and as shown in FIG. 2A, a connector housing 6 that fits into a connector of an external device is integrally molded. .. That is, the connector housing 6 includes the coil bobbin 2, the wire 3 wound around the coil bobbin 2, the relay terminals 4a and 4b, and the coil coating portion 61 that covers the base portions of the terminals 5a and 5b, and the coil coating portion 61. And a connector fitting portion 62 projecting laterally (in the radial direction of the bobbin 2) from the outer periphery of the upper part of the.
  • the connector fitting portion 62 is a tubular member having an oval cross section, and the connector on the external device side is fitted inside the tip end opening portion. Inside the connector fitting portion 62, the contacts 53 of the terminals 5a and 5b are arranged. The inside of the opening of the connector fitting portion 62 reaches the coil coating portion 61, and the contact point 53 of the pair of terminals 5a and 5b extends in the vertical direction on the wall surface at the end thereof, as shown in FIG. 2(b). That is, they are arranged vertically along the winding axis direction of the coil. Therefore, when viewed from the winding axis direction, the contact points 53 of the pair of terminals 5a and 5b overlap.
  • the relay terminals 4a and 4b are substantially flush with the flange 22 and are arranged so as to avoid the passage of the wire wound from the automatic winding machine to the bobbin, the relay terminals 4a and 4b are wound around the wire.
  • the wire 3 can be efficiently wound around the tubular portion 21 of the bobbin 2 without hindering the work.
  • the terminals 5a and 5b are not fixed to the bobbin 2 during the winding work. Since the relay terminals 4a, 4b are also arranged at positions avoiding the passage of the wire 3 wound on the bobbin 2, the relay terminals 4a, 4b and the terminals 5a, 5b do not interfere with the winding work, and the winding Work can be performed easily and efficiently. On the other hand, since the terminals 5a and 5b are fixed to the bobbin 2 after the winding work is completed, the contacts of the terminals 5a and 5b can be arranged at positions where they can be easily joined to the connector of the external device.
  • terminals 5a and 5b are fixed to the bobbin 2 after the wire 3 is wound, various positions and directions of connectors can be obtained by preparing the terminals 5a and 5b having various shapes in advance. It can correspond to an external device.
  • the bobbin 2 other than the terminals 5a and 5b, the wire 3, the relay terminals 4a and 4b, and the like can be shared, and various coils can be manufactured without increasing manufacturing facilities such as types of parts and molds. it can.
  • the terminals 5a and 5b are supposed to be fused by sandwiching the starting end 31a and the terminating end 31b of the wire 3 by the terminal body and the projecting piece 55, but the terminals 5a and 5b are projecting pieces 55. May not have.
  • the terminals 5a and 5b having no protruding piece 55 may be joined to the starting end 31a and the terminating end 31b of the wire 3 by means of fusing, soldering or the like.
  • the terminals 5a and 5b without the projecting piece 55 are used, the crimping work between the projecting piece 55 and the end of the wire 3 becomes unnecessary, and the wire 3 is joined by means such as soldering without using the upper and lower sandwiching electrodes. Is advantageous to.
  • the relay terminals 4a and 4b are those in which the starting end 31a or the terminating end 31b of the wire can be stretched in the opening 42 between the pair of locking portions 43 and 44.
  • the shapes of the parts 43 and 44 are not limited to this.
  • each relay terminal 4a, 4b is provided with only one locking portion 43, and the starting end 31a or the terminal end 31b of the wire 3 is provided between the locking portion 43 and the edge of the flange 22.
  • the ends of the wire 3 can be sandwiched and welded by the projecting pieces 55 provided on the terminals 5a and 5b.
  • the shape of the relay terminals 4a and 4b can be made small and simple.
  • the two contacts 53 of the terminals 5a and 5b are projected to the outside of the bobbin 2 in a state where they are vertically arranged, but the arrangement direction and the protruding direction of the contacts 53 are the same. Not exclusively.
  • two terminals 5a and 5b having the same bent portion 52 are used, and the tip of the bent portion 52 is bent directly toward the outside of the bobbin to form the contact 53.
  • the two laterally arranged contacts may be projected to the outside of the bobbin 2. Further, as shown in FIG.
  • two terminals 5a and 5b having the same length of the bent portion 52 are used, and the bent portion 52 is arranged along the outer peripheral surface of the wire 3 and is provided at the tip thereof.
  • the contact 53 may be provided.
  • the supporting portions of the relay terminals 4a and 4b and the terminals 5a and 5b are formed integrally with the flange 22a, but the invention is not limited thereto.
  • the relay terminals 4a and 4b and the terminals 5a and 5b may be supported.
  • the base portions 41 of the relay terminals 4a and 4b may be fixed to part of the flange 22 by insert molding when the bobbin 2 is molded.
  • the supporting portions of the relay terminals 4a, 4b and the terminals 5a, 5b may be provided not on the bobbin 2 but on the relay terminals 4a, 4b.
  • the form is not limited as long as the relay terminals 4a, 4b and the terminals 5a, 5b are directly or indirectly supported by the bobbin 2.
  • the relay terminals 4a and 4b are made of a plate-shaped metal member, but the material of the relay terminals 4a and 4b is not limited to this.
  • the relay terminals 4a and 4b may be made of a material having no conductivity, such as resin or ceramic. It is also possible that a part of the resin bobbin 2 is projected so as to function as the relay terminals 4a and 4b.
  • the two relay terminals 4a and 4b and the two terminals 5a and 5b are fixed to the flange 22, but the number of relay terminals and terminals fixed to the flange 22 is Not limited to
  • the wire 3 wound around the bobbin 2 may be provided with an intermediate tap, and the relay terminal and the terminal connected to the intermediate tap may be fixed to the flange 22.
  • the wire 3 forming the secondary winding may be wound around the bobbin 2, and the relay terminal and the terminal connected to the secondary winding may be fixed to the flange 22.
  • the intermediate tap portion and the end of the secondary winding have the same relay terminal as in the first embodiment. You can also connect to an external device using the and terminals.
  • the starting end 31a and the terminating end 31b of the wire 3 fixed to the relay terminals 4a and 4b are respectively joined to the projecting piece 55 by fusing.
  • connection by soldering, laser They may be joined by welding by welding or caulking.
  • the example of the connector fitting portion 62 extending in the radial direction of the bobbin 2 has been described, but it goes without saying that the connector fitting portion extending in the winding axis direction of the bobbin 2 may be used.
  • the contact portions of the terminals 5a and 5b inside the connector fitting portion are also arranged to extend in the winding axis direction.
  • bent portion 52 of the terminal 5a is extended downward in the above-described embodiment, if the bent portion 52 of the terminal 5a is bent upward, the bent portion 52 and the contact 53 of the terminal 5a can be seen from the radial direction of the bobbin 2. Therefore, it does not overlap the tubular portion 21 of the bobbin 2. That is, only the bent portion 52 and the contact point 53 of the terminal 5b are arranged so as to overlap the tubular portion 21 of the bobbin 2 when viewed in the radial direction of the bobbin 2.
  • the terminal 5a when using the terminal 5a in which the bent portion 52 of the terminal 5a is not formed and the contact is formed on the tip side extending in the radial direction from the base portion 51 of the terminal, when viewed from the radial direction of the bobbin 2, the terminal 5a The contacts are arranged so as not to overlap the tubular portion 21 of the bobbin 2.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Insulating Of Coils (AREA)

Abstract

L'invention concerne : une bobine moulée par injection facile à produire, compatible avec divers connecteurs de dispositifs externes, et ne provoquant pas d'interférence entre les bornes et un fil lorsque le fil est enroulé ; et un procédé de production de la bobine moulée par injection. Selon la présente invention, une bobine 2 comporte : une partie cylindrique 21 autour de laquelle est enroulé un fil 3 ; et deux joues 22 disposées à chaque extrémité de la partie cylindrique 21. Deux bornes de relais 4a, 4b auxquelles sont fixées une extrémité de début et une extrémité de fin du fil 3 sont disposées sur la bobine 2 éloignées de l'endroit où le fil 3 est enroulé entre les deux joues 22. Des bornes 5a, 5b qui sont distinctes des deux bornes de relais 4a, 4b sont disposées à des emplacements opposés à l'endroit où est enroulé le fil 3 et sont connectées à l'extrémité de début 31a ou à l'extrémité de fin 31b du fil 3. Des trous de support 26a, 26b supportent de manière amovible les bornes 5a, 5b sur la bobine 2.
PCT/JP2019/044920 2018-12-18 2019-11-15 Bobine moulée et son procédé de production WO2020129500A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201980083876.8A CN113196424B (zh) 2018-12-18 2019-11-15 模制线圈及其制造方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018236078A JP7201222B2 (ja) 2018-12-18 2018-12-18 モールドコイル及びその製造方法
JP2018-236078 2018-12-18

Publications (1)

Publication Number Publication Date
WO2020129500A1 true WO2020129500A1 (fr) 2020-06-25

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Application Number Title Priority Date Filing Date
PCT/JP2019/044920 WO2020129500A1 (fr) 2018-12-18 2019-11-15 Bobine moulée et son procédé de production

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JP (1) JP7201222B2 (fr)
CN (1) CN113196424B (fr)
WO (1) WO2020129500A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116900199B (zh) * 2023-06-29 2024-04-05 诸暨市金闽辉电子科技有限公司 一种电子膨胀阀线圈骨架上引脚的安插弯折装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6357974A (ja) * 1986-06-05 1988-03-12 レクトロン　プロダクツ　インコ−ポレ−テツド 電磁式流体制御弁およびその寸法規制方法
DE202005006010U1 (de) * 2004-06-16 2005-06-30 Hydac Electronic Gmbh Betätigungsvorrichtung
JP2012156188A (ja) * 2011-01-24 2012-08-16 Saginomiya Seisakusho Inc コイルおよびコイルを用いた電磁弁
WO2018046287A1 (fr) * 2016-09-09 2018-03-15 Kendrion (Villingen) Gmbh Dispositif de réglage électromagnétique destiné notamment au déphasage d'arbre à cames

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3017702B2 (ja) * 1997-09-10 2000-03-13 川崎重工業株式会社 ソレノイド
JP3907967B2 (ja) * 2001-05-22 2007-04-18 株式会社ジェイテクト ソレノイド用ボビン及びソレノイドの製造方法
US7902954B2 (en) * 2009-04-09 2011-03-08 Eaton Corporation Dual sided connector block
JP2017141885A (ja) * 2016-02-10 2017-08-17 日本電産トーソク株式会社 電磁弁のソレノイド

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6357974A (ja) * 1986-06-05 1988-03-12 レクトロン　プロダクツ　インコ−ポレ−テツド 電磁式流体制御弁およびその寸法規制方法
DE202005006010U1 (de) * 2004-06-16 2005-06-30 Hydac Electronic Gmbh Betätigungsvorrichtung
JP2012156188A (ja) * 2011-01-24 2012-08-16 Saginomiya Seisakusho Inc コイルおよびコイルを用いた電磁弁
WO2018046287A1 (fr) * 2016-09-09 2018-03-15 Kendrion (Villingen) Gmbh Dispositif de réglage électromagnétique destiné notamment au déphasage d'arbre à cames

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JP7201222B2 (ja) 2023-01-10
JP2020098850A (ja) 2020-06-25
CN113196424A (zh) 2021-07-30
CN113196424B (zh) 2023-07-21

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