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EP0520291B1 - Electric terminal piece - Google Patents

Electric terminal piece Download PDF

Info

Publication number
EP0520291B1
EP0520291B1 EP92110123A EP92110123A EP0520291B1 EP 0520291 B1 EP0520291 B1 EP 0520291B1 EP 92110123 A EP92110123 A EP 92110123A EP 92110123 A EP92110123 A EP 92110123A EP 0520291 B1 EP0520291 B1 EP 0520291B1
Authority
EP
European Patent Office
Prior art keywords
terminal piece
wire
clinching
clinching portion
rubber seal
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.)
Expired - Lifetime
Application number
EP92110123A
Other languages
German (de)
French (fr)
Other versions
EP0520291A1 (en
Inventor
Etsuro c/o Yazaki Parts Co. Ltd. Suzuki
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.)
Yazaki Corp
Original Assignee
Yazaki 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 Yazaki Corp filed Critical Yazaki Corp
Publication of EP0520291A1 publication Critical patent/EP0520291A1/en
Application granted granted Critical
Publication of EP0520291B1 publication Critical patent/EP0520291B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5205—Sealing means between cable and housing, e.g. grommet
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • 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
    • H01R4/10—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping

Definitions

  • This invention relates to an electrical terminal piece with a first clinching portion for fastening a peeled exposed end of a wire to the terminal piece and with a second clinching portion for fastening a member covering the wire, wherein circumferential edge portions of the second clinching portion turn in a direction opposite to a direction in which the second clinching portion is clinched.
  • Such a terminal piece is known from US-A-3,605,077. This terminal piece is circumferentially closed and can thus only be used with wires having a given outer diameter.
  • an electric terminal piece provided with a first and a second clinching portion for fastening an insulator-coated wire to the terminal piece.
  • the first clinching portion of the electric terminal piece is to fasten and electrically connect the wire to the terminal piece at an end which is exposed, while the second clinching portion is to fasten the insulator-coated wire over the insulation coating of the wire at another part near the exposed end.
  • a waterproofing rubber seal or plug may be attached to the portion of the wire, and in this case, the insulator-coated wire may be fastened at the portion through the waterproofing rubber seal.
  • Every clinching portion is generally annular and has a slit, so that the clinching portion of the terminal piece is clinched easily to fasten the wire.
  • the second clinching portion is clinched to fasten the wire over the insulation coating or the rubber seal
  • lower edges of the second clinching portion of the terminal piece are pressed against the rubber seal or the insulation coating.
  • the edges sometimes cut or damage the insulation coating or the waterproofing rubber seal, in particular when the insulation coating or the rubber seal receives external forces and/or thermal stresses. Repeated forces and stresses make the cuts in the insulation coating and the rubber seal larger and deeper, and as a result, insulation of the wire, or waterproofness of the seal is broken.
  • the object of the present invention is to provide, with due consideration to the drawback of such a conventional device, an electric terminal piece provided with a clinching portion for fastening a wire over a member made of soft material covering the wire, such as an insulation coating of the wire, and a rubber seal for sealing the wire, without damaging the member.
  • An electric terminal piece of the present invention is characterized in that the second clinching portion is provided with a longitudinal slit and in that the edge portions along the edge of the longitudinal slit also turn in a direction opposite to a direction in which the second clinching portion is clinched.
  • the second clinching portion can fit tightly over the member covering the wire and the member is not damaged by the edges of the clinched portion, and therefore insulation and waterproofing of the wire is maintained.
  • Figs. 1 and 2 show respectively a male and a female electric terminal piece 1 and 21 of the present invention.
  • the male terminal piece 1 shown in Fig. 1 has a bar-shaped plug 2 which is received by a socket of a female terminal piece (not shown).
  • the female terminal piece 21 shown in Fig. 2 has a socket 22 which receives a male plug (not shown).
  • the structure of the other parts is almost the same between the male and the female terminal pieces 1 and 21.
  • the terminal piece 1 or 21 also has a first and a second clinching portions 3 and 4.
  • the clinching portions are annular and formed with a slit as conventionally known, so that the clinching portions are easily clinched.
  • Edge portions 5, 6 of the second clinching portion 4 turn upward or outward.
  • An insulation-coated wire 10 is to be fastened to the terminal piece 1 or 21 through the clinching portions 3 and 4.
  • An exposed end 11 of the wire 10, at which an insulation coating 12 has been peeled, is fastened by the first clinching portion 3 to obtain good electric contact between the wire 10 and the terminal 1 or 21, and the wire 10 is also fastened by the second clinching portion 4 at another portion near the exposed end 11 over the insulation coating 12.
  • a rubber seal 13 for waterproofing may be disposed around the portion of the insulation-coated wire 10, as shown in the drawings.
  • the wire is fastened at the portion by the second clinching portion of the wire through the rubber seal 13.
  • the waterproofing rubber seal 13 has a round projected part 14 through which the rubber seal 13 is fastened by the second clinching portion 4 of the terminal piece 1 or 21, and one or more sealing ribs 15.
  • the projected part 14 of the rubber seal 13 is fastened by the second clinching portion 4 of the wire 10
  • the wire 10 is fastened to the terminal piece 1 or 21 through the rubber seal 13 as mentioned above, and waterproofing between the rubber seal 13 and the wire 10 is maintained.
  • the male terminal piece 1 connected to the wire 10 is to be inserted in a female terminal (not shown) in a connecting chamber 17 formed in a connecting housing 16.
  • the sealing rib 15 of the rubber seal 13 is pressed against a wall of the connecting chamber 17.
  • waterproofing between the chamber 17 and the wire 10 is maintained.
  • the female terminal piece 21 shown in Fig. 2 is connected to a male terminal piece (not shown) in a connecting chamber of a connecting housing, and waterproofing between the chamber and the wire 10 is maintained.
  • Figs. 3 and 4 show the second clinching portion 4 which is clinched to securely hold the insulation-coated wire 10 through the projected portion 14 of the rubber seal 13. If the terminal piece 1 or 21 was a conventional terminal piece mentioned above, edges of the clinched portion 4 would contact and enter into the projected portion 14 of the rubber seal 13 and might damage the projected portion 14, in particular when the rubber seal 13 receives external forces or thermal stresses.
  • edges of the clinched portion 4 of the terminal piece might damage the insulation coating 12 similarly.
  • the clinching portion 4 of the terminal piece 1 or 21 dos not cause the damage to the insulation coating 12 and the rubber seal 13 since the edge portions 5, 6 of the clinching portion 4 turn outward or in a direction opposite to a direction in which the clinching portion 4 is clinched.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Insulating Bodies (AREA)

Description

    Background of the Invention Field of the Invention
  • This invention relates to an electrical terminal piece with a first clinching portion for fastening a peeled exposed end of a wire to the terminal piece and with a second clinching portion for fastening a member covering the wire, wherein circumferential edge portions of the second clinching portion turn in a direction opposite to a direction in which the second clinching portion is clinched.
    • Description of the Prior Art
  • Such a terminal piece is known from US-A-3,605,077. This terminal piece is circumferentially closed and can thus only be used with wires having a given outer diameter.
  • Conventionally, an electric terminal piece provided with a first and a second clinching portion for fastening an insulator-coated wire to the terminal piece is known. The first clinching portion of the electric terminal piece is to fasten and electrically connect the wire to the terminal piece at an end which is exposed, while the second clinching portion is to fasten the insulator-coated wire over the insulation coating of the wire at another part near the exposed end. A waterproofing rubber seal or plug may be attached to the portion of the wire, and in this case, the insulator-coated wire may be fastened at the portion through the waterproofing rubber seal.
  • Every clinching portion is generally annular and has a slit, so that the clinching portion of the terminal piece is clinched easily to fasten the wire. When the second clinching portion is clinched to fasten the wire over the insulation coating or the rubber seal, lower edges of the second clinching portion of the terminal piece are pressed against the rubber seal or the insulation coating. The edges sometimes cut or damage the insulation coating or the waterproofing rubber seal, in particular when the insulation coating or the rubber seal receives external forces and/or thermal stresses. Repeated forces and stresses make the cuts in the insulation coating and the rubber seal larger and deeper, and as a result, insulation of the wire, or waterproofness of the seal is broken.
  • The object of the present invention is to provide, with due consideration to the drawback of such a conventional device, an electric terminal piece provided with a clinching portion for fastening a wire over a member made of soft material covering the wire, such as an insulation coating of the wire, and a rubber seal for sealing the wire, without damaging the member.
    • Summary of the Invention
  • An electric terminal piece of the present invention is characterized in that the second clinching portion is provided with a longitudinal slit and in that the edge portions along the edge of the longitudinal slit also turn in a direction opposite to a direction in which the second clinching portion is clinched.
  • Accordingly, the second clinching portion can fit tightly over the member covering the wire and the member is not damaged by the edges of the clinched portion, and therefore insulation and waterproofing of the wire is maintained.
    • Brief Description of the Drawing
    • Fig. 1
    is a perspective view showing an electric terminal piece of the present invention fastening an insulator-coated wire.
    Fig. 2
    is a perspective view showing another electric terminal piece of the present invention fastening an insulator-coated wire, on an enlarged scale.
    Fig. 3
    is a vertical sectional view showing a clinching portion of the electric terminal piece of Fig. 1 or Fig. 2, fastening the wire over a member.
    Fig. 4
    is a sectional view taken along line IV-IV in Fig. 3.
    Description of the Preferred Embodiments
  • Figs. 1 and 2 show respectively a male and a female electric terminal piece 1 and 21 of the present invention. The male terminal piece 1 shown in Fig. 1 has a bar-shaped plug 2 which is received by a socket of a female terminal piece (not shown). The female terminal piece 21 shown in Fig. 2 has a socket 22 which receives a male plug (not shown). The structure of the other parts is almost the same between the male and the female terminal pieces 1 and 21.
  • The terminal piece 1 or 21 also has a first and a second clinching portions 3 and 4. The clinching portions are annular and formed with a slit as conventionally known, so that the clinching portions are easily clinched. Edge portions 5, 6 of the second clinching portion 4 turn upward or outward.
  • An insulation-coated wire 10 is to be fastened to the terminal piece 1 or 21 through the clinching portions 3 and 4. An exposed end 11 of the wire 10, at which an insulation coating 12 has been peeled, is fastened by the first clinching portion 3 to obtain good electric contact between the wire 10 and the terminal 1 or 21, and the wire 10 is also fastened by the second clinching portion 4 at another portion near the exposed end 11 over the insulation coating 12.
  • A rubber seal 13 for waterproofing may be disposed around the portion of the insulation-coated wire 10, as shown in the drawings. In this case, the wire is fastened at the portion by the second clinching portion of the wire through the rubber seal 13. The waterproofing rubber seal 13 has a round projected part 14 through which the rubber seal 13 is fastened by the second clinching portion 4 of the terminal piece 1 or 21, and one or more sealing ribs 15. When the projected part 14 of the rubber seal 13 is fastened by the second clinching portion 4 of the wire 10, the wire 10 is fastened to the terminal piece 1 or 21 through the rubber seal 13 as mentioned above, and waterproofing between the rubber seal 13 and the wire 10 is maintained.
  • As shown in Fig. 1, the male terminal piece 1 connected to the wire 10 is to be inserted in a female terminal (not shown) in a connecting chamber 17 formed in a connecting housing 16. In the connecting chamber 17, the sealing rib 15 of the rubber seal 13 is pressed against a wall of the connecting chamber 17. Hence, waterproofing between the chamber 17 and the wire 10 is maintained. Similarly, the female terminal piece 21 shown in Fig. 2 is connected to a male terminal piece (not shown) in a connecting chamber of a connecting housing, and waterproofing between the chamber and the wire 10 is maintained.
  • Figs. 3 and 4 show the second clinching portion 4 which is clinched to securely hold the insulation-coated wire 10 through the projected portion 14 of the rubber seal 13. If the terminal piece 1 or 21 was a conventional terminal piece mentioned above, edges of the clinched portion 4 would contact and enter into the projected portion 14 of the rubber seal 13 and might damage the projected portion 14, in particular when the rubber seal 13 receives external forces or thermal stresses.
  • If the conventional terminal piece fastened the wire 10 over the insulation coating 12, edges of the clinched portion 4 of the terminal piece might damage the insulation coating 12 similarly.
  • In the terminal piece 1 or 21 of the present invention, however, the clinching portion 4 of the terminal piece 1 or 21 dos not cause the damage to the insulation coating 12 and the rubber seal 13 since the edge portions 5, 6 of the clinching portion 4 turn outward or in a direction opposite to a direction in which the clinching portion 4 is clinched.

Claims (3)

  1. An electrical terminal piece with a first clinching portion (3) for fastening a peeled exposed end (11) of a wire (10) to the terminal piece and with a second clinching portion (4) for fastening a member (14) covering the wire (10), wherein
    circumferential edge portions (6) of the second clinching portion (4) turn in a direction opposite to a direction in which the second clinching portion (4) is clinched
    characterized in that
    in that the second clinching portion (4) is provided with a longitudinal slit and
    in that the edge portions (5) along the edge of the longitudinal slit also turn in a direction opposite to a direction in which the second clinching portion (4) is clinched.
  2. The electrical terminal piece according to claim 1, wherein
    the member (14) covering the wire is provided with a rubber seal (13).
  3. The electrical terminal piece according to claim 1, wherein
    the rubber seal (13) has a sealing rib (15) which extends radially outwardly.
EP92110123A 1991-06-24 1992-06-16 Electric terminal piece Expired - Lifetime EP0520291B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP047683U JPH052382U (en) 1991-06-24 1991-06-24 Terminal fitting
JP47683/91U 1991-06-24

Publications (2)

Publication Number Publication Date
EP0520291A1 EP0520291A1 (en) 1992-12-30
EP0520291B1 true EP0520291B1 (en) 1996-10-02

Family

ID=12782079

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92110123A Expired - Lifetime EP0520291B1 (en) 1991-06-24 1992-06-16 Electric terminal piece

Country Status (4)

Country Link
EP (1) EP0520291B1 (en)
JP (1) JPH052382U (en)
KR (1) KR930001518A (en)
DE (1) DE69214202T2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2785714B2 (en) * 1994-09-08 1998-08-13 住友電装株式会社 Fixing structure of rubber stopper for sealing
DE69633161T2 (en) * 1995-09-19 2005-01-27 Texas Instruments Inc., Dallas Fluid pressure responsive switch and method of assembling same
JP5191814B2 (en) * 2008-06-13 2013-05-08 矢崎総業株式会社 Terminal fitting
JP5450117B2 (en) * 2010-01-13 2014-03-26 住友電装株式会社 Rubber stopper and waterproof connector
EP2793326B1 (en) * 2013-04-16 2017-09-13 Delphi International Operations Luxembourg S.à r.l. Insulation or sealing crimp die
JP7410904B2 (en) * 2021-05-17 2024-01-10 矢崎総業株式会社 Terminal rubber plug retention structure

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL141718C (en) * 1969-04-18 Amp Inc
US4174880A (en) * 1978-01-26 1979-11-20 General Motors Corporation Spade terminal
GB8830167D0 (en) * 1988-12-23 1989-02-22 Amp Gmbh Electrical terminal which has means to provide a reliable electrical connection

Also Published As

Publication number Publication date
JPH052382U (en) 1993-01-14
DE69214202D1 (en) 1996-11-07
KR930001518A (en) 1993-01-16
EP0520291A1 (en) 1992-12-30
DE69214202T2 (en) 1997-03-06

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