EP2768081A1 - Struktur zur verbindung eines verdrahtungsleiters - Google Patents

Struktur zur verbindung eines verdrahtungsleiters Download PDF

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Publication number
EP2768081A1
EP2768081A1 EP20110874076 EP11874076A EP2768081A1 EP 2768081 A1 EP2768081 A1 EP 2768081A1 EP 20110874076 EP20110874076 EP 20110874076 EP 11874076 A EP11874076 A EP 11874076A EP 2768081 A1 EP2768081 A1 EP 2768081A1
Authority
EP
European Patent Office
Prior art keywords
wiring
wiring terminal
terminal surface
hook
wiring conductor
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP20110874076
Other languages
English (en)
French (fr)
Other versions
EP2768081B1 (de
EP2768081A4 (de
Inventor
Shuzo Akiyama
Yasuhiro Hosaka
Tadayuki Fujimoto
Masaaki Tanigawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP2768081A1 publication Critical patent/EP2768081A1/de
Publication of EP2768081A4 publication Critical patent/EP2768081A4/de
Application granted granted Critical
Publication of EP2768081B1 publication Critical patent/EP2768081B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/301—Clamped connections, spring connections utilising a screw or nut clamping member having means for preventing complete unscrewing of screw or nut
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/305—Clamped connections, spring connections utilising a screw or nut clamping member having means for facilitating engagement of conductive member or for holding it in position
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
    • H01R11/26—End pieces terminating in a screw clamp, screw or nut
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/50—Fixed connections
    • H01R12/51—Fixed connections for rigid printed circuits or like structures
    • H01R12/53—Fixed connections for rigid printed circuits or like structures connecting to cables except for flat or ribbon cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/34—Conductive members located under head of screw

Definitions

  • the present invention relates to a connection structure of a wiring conductor that electrically interconnects a plurality of wiring terminals of an electronic device.
  • a structure typically used in the related art is to firmly fix the terminals by sandwiching the both terminals using a male screw (for example, a bolt) and a female screw (for example, a nut) so that the terminals are electrically and mechanically connected in a reliable manner.
  • a male screw for example, a bolt
  • a female screw for example, a nut
  • PTL 1 describes a power-supply supply terminal, an electronic component with a conductor member, and a structure body including the power-supply supply terminal.
  • the power-supply supply terminal 2 is formed of a first terminal block 4 and a second terminal block 20.
  • the first terminal block 4 is provided with a plurality of slits 6 to insert press-fit terminals 12 bent in the shape of a capital U and an insert-molded female screw 8.
  • a back wiring board (BWB) 44 has a conductor pattern for a supply of the power supply and a plurality of through-holes connected to the conductor pattern.
  • the power-supply supply terminal 2 is installed to the BWB 44 by inserting press-fit pins 14 of the press-fit terminals 12 into the through-holes of the BWB 44.
  • An outside wiring can be firmly fixed to the first terminal block 4 by screwing a male screw 16 into the female screw 8 with a press-fit terminal 18 attached to the tip end of the outside wiring sandwiched in between.
  • the invention was devised to solve the problems discussed above, and has an object to provide a connection structure of a wiring conductor with which working hours can be shorter by making a positioning work easier when a plurality of wiring terminals are electrically interconnected.
  • a connection structure of a wiring conductor of the invention is a connection structure of a wiring conductor that electrically interconnects bonding surfaces of wiring terminals of a plurality of wiring conductors using a fastening member, which is characterized in that at least one wiring terminal is provided with a hook-like protrusion in an edge of the bonding surface, and that the other wiring terminal or the fastening member is pressed and locked by the hook-like protrusion.
  • connection structure of the wiring conductor of the invention by providing the hook-like protrusion to the edge of the bonding surface of at least one wiring terminal, a positioning mechanism can be simpler when the wiring terminals are interconnected. Hence, not only can assembling workability be enhanced, but also dimensional accuracy is not required for the wiring terminals. It thus becomes possible to provide the connection structure at lower costs.
  • Fig. 1 is a schematic perspective view showing a major portion of a connection structure of a wiring conductor of a first embodiment.
  • Fig. 2 is an exploded perspective view of the connection structure of the wiring conductor.
  • Fig. 3 is a top view with a cross section taken on the line A-A of the connection structure of the wiring conductor.
  • Fig. 4 is a partial view of a bonding surface portion of a wiring terminal.
  • a connection structure 1 of a wiring conductor of the first embodiment is formed of a case 2 of an electronic device, a plate-like wiring conductor 3 (hereinafter, referred to as the wiring conductor) insert-molded in the case 2 using resins 2a and 2b, a bonding surface 3a of a wiring terminal (hereinafter, referred to as the wiring terminal surface) formed by bending a tip end of the wiring conductor 3, a concave portion 2c provided to the case 2 so as to hold and store the wiring terminal surface 3a, a hook-like protrusion 3b provided to an edge of the wiring terminal surface 3a by bending, a wiring terminal surface 4a of an outside wiring terminal 4 oppositely fixed to the wiring terminal surface 3a, a press-fit portion 4f that bonds a flexible wiring 5 to the outside wiring terminal 4, and a bolt (male screw) 6 and a nut (female screw) 7 pressed and locked by the hook-like protrusion 3b, which are
  • the case 2 is provided with a concave portion 2d to store the nut 7.
  • a major portion of the case 2 relevant to the invention alone is shown for ease of description, and other wiring conductors and structure bodies are omitted.
  • the case 2 in which is embedded the wiring conductor 3 is shown by dividing the case 2 to the resin 2a in an upper part and the resin 2b in a lower part for ease of description.
  • the case 2 is actually formed in such a manner that the resins 2a and 2b wrap the wiring conductor 3 by insert-molding and the resins 2a and 2b are indistinguishable.
  • the wiring terminal surface 4a of the outside wiring terminal 4 to which is bonded the flexible wiring 5 by the press-fit portion 4f is abutted against the wiring terminal surface 3a exposed from the case 2.
  • the bolt 6 is inserted through a bonding hole 4h of the wiring terminal surface 4a and a bonding hole 3h of the wiring terminal surface 3a and screwed into the nut 7 installed in the concave portion 2d in advance.
  • the wiring terminal surface 4a and the wiring terminal surface 3a are thus bonded to each other.
  • Fig. 3 shows the top view (A) and the cross section (B) taken on the line A-A when the connection is completed.
  • the wiring terminal surface 3a of the wiring conductor 3 is stored in the concave portion 2c of the case 2 with a clearance in between.
  • the wiring terminal surface 3a may be of a structure by which the wiring terminal surface 3a is fixed by insert-molding using resin except for a portion bonded to the wiring terminal surface 4a of the outside wiring terminal 4.
  • the concave portion 2d provided to the case 2 so as to store the nut 7 therein has a clearance large enough to insert and move the nut 7.
  • it is sufficient that the hook-like protrusion 3b can press the nut 7 softly so that the nut 7 does not come out of the concave portion 2d and strength is not required.
  • the hook-like protrusion 3b can be narrow and therefore can be processed easily. Further, it is necessary to position the bolt 6 with respect to the screw hole of the nut 7 when the bolt 6 is fastened by inserting the bolt 6 through the bonding hole 4h and the bonding hole 3h and screwing the bolt 6 into the screw hole of the nut 7.
  • the nut 7 because the nut 7 is not fixed in the concave portion 2d and in a loose-fit state, the nut 7 can be fine-tuned so that the center thereof falls on a predetermined position when the bolt 6 is inserted. Hence, it becomes easy to insert the bolt 6 into the screw hole of the nut 7 and positional accuracy as to where the nut 7 is installed is not required.
  • notch portions 3k are provided to the edge of the wiring terminal surface 3a at the bottom where the hook-like protrusion 3b is formed. Owing to this configuration, there can be achieved an advantage that not only is the hook-like protrusion 3b bent easily, but also the occurrence of strain in the wiring terminal surface 3a and the hook-like protrusion 3b is prevented during the processing.
  • the first embodiment above has described a case where the wiring conductor is embedded in the case.
  • a connection structure 10 of the wiring conductor is also applicable to a case where a wiring conductor 13 is provided on a wiring board 12 as in another example of the first embodiment shown in Fig. 5 .
  • a wiring terminal surface 13a of the wiring conductor 13 processed so as to have an air gap between the self and the wiring board 12 and the outside wiring terminal 4 are connected.
  • hook-like protrusions 13b are provided to front and rear edges of the wiring terminal surface 13a (the hook-like protrusion 13b in the rear edge is hidden behind the outside wiring terminal 4), and the nut 7 is pressed softly by these hook-like protrusions 13b.
  • this embodiment is particularly effective when applied to a wiring conductor in a power-supply system, which is thick because of a need to flow a large current.
  • connection structure of the wiring conductor of the first embodiment for the connection between the wiring terminal of the wiring conductor and the outside wiring terminal to which the flexible wiring is press-fit, by providing the hook-like protrusion to the edge of the wiring terminal surface of the wiring conductor and by pressing and locking the nut, which is the fastening member, with the hook-like protrusion, the need for positioning accuracy of the nut can be eliminated when the bolt is inserted and screwed into the nut. A fastening and bonding work therefore becomes easier. Hence, there can be achieved a significant advantage that work efficiency is enhanced and component costs and operational costs can be reduced.
  • Fig. 6 is a schematic perspective view showing a major portion of a connection structure of a wiring conductor of a second embodiment.
  • Fig. 7 is a top view with a cross section taken along the line B-B of the connection structure of the wiring conductor.
  • a difference from the connection structure of the wiring conductor of the first embodiment above is that in contrast to the first embodiment above in which one wiring terminal is a wiring terminal provided to the case or the wiring conductor on the wiring board and the other wiring terminal is a wiring terminal of the outside wiring terminal to which the flexible wiring is connected and these wiring terminals are interconnected, wiring terminals provided to wiring conductors on two wiring boards are interconnected in the second embodiment.
  • wiring conductors 23 and 33 are provided on two wiring boards 22 and 32, respectively, and wiring terminal surfaces 23a and 33a are provided by bending tip ends of the wiring conductors 23 and 33, respectively, upright.
  • Hook-like protrusions 23b and 33b are provided to edges of the wiring terminal surfaces 23a and 33a, respectively.
  • the hook-like protrusions 23b and 33b are extended by bending from the edges of the wiring terminal surfaces 23a and 33a, respectively. It should be appreciated, however, that the hook-like protrusions may be extended from one wiring terminal surface alone.
  • a connection structure 40 of a wiring conductor has wiring terminal surfaces 43a and 53a formed in a convex shape by bending to be parallel to wiring conductors 43 and 53, respectively.
  • the wiring terminal surface 43a of the wiring conductor 43 on the wiring board 42 and the wiring terminal surface 53a of the wiring conductor 53 on the wiring board 52 are connected.
  • Two hook-like protrusions 43b are provided to an edge of the wiring terminal surface 43a and the nut 7 is pressed softly by one hook-like protrusion 43b.
  • the wiring terminal surface 53a is pressed and locked as the other hook-like protrusion 43b and the edge of the wiring terminal surface 53a come into contact with each other.
  • the wiring terminal surface 53a is thus substantially positioned and fixed. Then, by fastening the bolt 6 with nut 7 by screwing the former into the latter, the wiring conductor 43 on the wiring board 42 and the wiring conductor 53 on the wiring board 52 are electrically connected.
  • the wiring terminal surfaces 43a and 53a are formed in a convex shape by bending so as to be parallel to the wiring conductors 43 and 53, respectively.
  • the wiring conductors can be electrically interconnected in a case where one wiring terminal surface is bent upright with respect to the wiring conductor and the wiring boards are installed perpendicularly to each other. Also, even in a case where one wiring conductor is provided to the case of the electronic device and the other wiring conductor is provided on the wiring board, it is also possible to interconnect these wiring conducts.
  • the female screw used in the second embodiment can be a nut as in the first embodiment above or, a method of directly applying screw-cutting to the wiring terminal surface by burring as has been described above and a method of embedding a helical-insert screw can be used as well.
  • connection structure of the wiring conductor of the second embodiment is for a case where wiring conductors provided to the case of the electronic device or on the wiring boards are interconnected, and by providing the hook-like protrusions to the edge of the wiring terminal surface of the wiring conductor, and by pressing and locking the other wiring terminal surface by the hook-like protrusions, the bolt is screwed into the nut, both of which are a fastening member.
  • positional accuracy of the wiring terminal surfaces with respect to each other is not required, and a fastening and bonding work becomes easier. Accordingly, there can be achieved a significant advantage that work efficiency is enhanced and component costs and operational costs can be reduced.
  • the invention is not limited to the case of fastening the wiring terminal surfaces by screwing.
  • the invention can be also used to temporarily fix the wiring terminal surfaces until welding is applied.
  • the invention can be used to temporarily fix the wiring terminal surfaces as well.
  • the tip end of the hook-like protrusion into a fork shape divided to a plurality of branches, the hook-like protrusions can abut against the edge of the other wiring terminal surface at more points and can thereby fix the wiring terminal surface firmly.

Landscapes

  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Multi-Conductor Connections (AREA)
  • Casings For Electric Apparatus (AREA)
  • Insertion, Bundling And Securing Of Wires For Electric Apparatuses (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
EP11874076.0A 2011-10-12 2011-10-12 Struktur zur verbindung eines verdrahtungsleiters Active EP2768081B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2011/073380 WO2013054400A1 (ja) 2011-10-12 2011-10-12 配線導体の接続構造

Publications (3)

Publication Number Publication Date
EP2768081A1 true EP2768081A1 (de) 2014-08-20
EP2768081A4 EP2768081A4 (de) 2015-06-24
EP2768081B1 EP2768081B1 (de) 2016-11-30

Family

ID=48081479

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11874076.0A Active EP2768081B1 (de) 2011-10-12 2011-10-12 Struktur zur verbindung eines verdrahtungsleiters

Country Status (5)

Country Link
EP (1) EP2768081B1 (de)
JP (1) JP5680213B2 (de)
CN (1) CN103858280B (de)
IN (1) IN2014CN03182A (de)
WO (1) WO2013054400A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017207285A3 (de) * 2016-05-31 2019-02-21 Endress+Hauser SE+Co. KG Steck-verbindung zur elektrischen kontaktierung einer leiterplatte

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5847131B2 (ja) * 2013-07-09 2016-01-20 古河電気工業株式会社 コネクタ
JP7262253B2 (ja) * 2019-03-13 2023-04-21 日本精機株式会社 電子部品モジュール、電子部品モジュールと筐体との取付構造及びこれを備えた制御装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1798812A (en) * 1928-10-06 1931-03-31 J H Rosenbeck & Sons Electric terminal
US2398433A (en) * 1944-03-18 1946-04-16 Aircraft Marine Prod Inc Electrical connector
FR1226070A (fr) * 1959-05-27 1960-07-08 Prise de courant basse tension et interrupteur associé
JP3371359B2 (ja) * 1997-07-10 2003-01-27 矢崎総業株式会社 端子の接続固定構造
CN2543223Y (zh) * 2002-04-08 2003-04-02 台湾神户电池股份有限公司 具有螺帽定位装置的端子
JP2009043730A (ja) * 2003-02-07 2009-02-26 Fujitsu Ltd 電源供給端子、導体部材付き電子部品及び該電源供給端子を備えた構造体
JP2010027410A (ja) * 2008-07-21 2010-02-04 Shang Tsai Wu 端子台の構造

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017207285A3 (de) * 2016-05-31 2019-02-21 Endress+Hauser SE+Co. KG Steck-verbindung zur elektrischen kontaktierung einer leiterplatte
CN109643857A (zh) * 2016-05-31 2019-04-16 恩德莱斯和豪瑟尔欧洲两合公司 用于电接触印刷电路板的接通连接
US10707588B2 (en) 2016-05-31 2020-07-07 Endress+Hauser SE+Co. KG Plug connection for electrical contacting of a circuit board

Also Published As

Publication number Publication date
WO2013054400A1 (ja) 2013-04-18
JPWO2013054400A1 (ja) 2015-03-30
JP5680213B2 (ja) 2015-03-04
CN103858280A (zh) 2014-06-11
EP2768081B1 (de) 2016-11-30
IN2014CN03182A (de) 2015-07-03
CN103858280B (zh) 2019-04-23
EP2768081A4 (de) 2015-06-24

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