EP0331084B1 - Through type electrical connector enabling fluidtight passage of electric signals through a partition, in particular, a vehicle gearbox panel. - Google Patents

Through type electrical connector enabling fluidtight passage of electric signals through a partition, in particular, a vehicle gearbox panel. Download PDF

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Publication number
EP0331084B1
EP0331084B1 EP89103418A EP89103418A EP0331084B1 EP 0331084 B1 EP0331084 B1 EP 0331084B1 EP 89103418 A EP89103418 A EP 89103418A EP 89103418 A EP89103418 A EP 89103418A EP 0331084 B1 EP0331084 B1 EP 0331084B1
Authority
EP
European Patent Office
Prior art keywords
block
partition
connector
fact
designed
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
EP89103418A
Other languages
German (de)
French (fr)
Other versions
EP0331084A3 (en
EP0331084A2 (en
Inventor
Roberto Troisi
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.)
Fiat Auto SpA
Original Assignee
Fiat Auto SpA
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Filing date
Publication date
Application filed by Fiat Auto SpA filed Critical Fiat Auto SpA
Publication of EP0331084A2 publication Critical patent/EP0331084A2/en
Publication of EP0331084A3 publication Critical patent/EP0331084A3/en
Application granted granted Critical
Publication of EP0331084B1 publication Critical patent/EP0331084B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46Bases; Cases
    • H01R13/52Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5202Sealing means between parts of housing or between housing part and a wall, e.g. sealing rings
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00Insulators or insulating bodies characterised by their form
    • H01B17/26Lead-in insulators; Lead-through insulators
    • H01B17/30Sealing
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46Bases; Cases
    • H01R13/533Bases, cases made for use in extreme conditions, e.g. high temperature, radiation, vibration, corrosive environment, pressure
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00Electrically-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
    • H01R4/54Bayonet or keyhole

Definitions

  • the present invention relates to a through type electrical connector enabling fluidtight passage of electric signals, supplied by one or more conducting wires, through a partition, in particular, a panel of a gearbox or any other mechanical vehicle component.
  • US-A-3 350 587 discloses a fluidtight electrical connector for a submersible electric motor, comprising a plastics plug fitted in a hole in the wall of the motor.
  • Said wiring provides for two functions: (1) for picking up electric signals produced by pressure, temperature or level sensors, etc. which, if they are to operate correctly, must be installed inside the component itself; and (2) for supplying the component with electric control signals for actuators such as continuous gear shift control electrovalves.
  • the aim of the present invention is to provide a through type electrical connector designed to enable complete preassembly of the mechanical components of a vehicle, through one panel of which an electric signal is to be supplied, while at the same time ensuring permanent fluidtight sealing of the mechanical component itself.
  • Number 1 in Fig.s 1 to 4 indicates a through type electrical connector enabling fluidtight passage of electric signals, supplied by one or more conducting wires 2, through a panel 3 of any type of mechanical component, e.g. a known gearbox 4 (shown only partly),of any known type of vehicle (not shown).
  • a known gearbox 4 shown only partly
  • Connector 1 is fitted in externally projecting manner on to gearbox 4 through a hole 5 in panel 3, and comprises a cylindrical block 6 housed in projecting manner through hole 4; and a lock coupling 7 for block 6, bayonet-connected to block 6 and, like the latter, preferably molded from synthetic plastic material.
  • Block 6 presents two opposite front ends 8 and 9 designed to cooperate respectively with coupling 7 and with hole 5 and the inner surface 10 of panel 3, and houses respective ends 12 of wires 2 and respective terminals 13 of the same molded inside block 6 so as to form one piece with the same.
  • Said end 9 comprises a peripheral stop flange 15 designed to contact surface 10 about hole 5, the remainder of end 9 being housed, in use, inside hole 5 and plugging the same in fluidtight manner by virtue of an annular O-ring type seal 18 housed inside a groove 19 formed on an outer cylindrical lateral surface 20 of end 9 close to flange 15.
  • Block 6 is axially longer than the thickness of panel 3, so that, in use, end 8 projects axially through hole 5 in relation to the outer surface 21 of panel 3, opposite surface 10.
  • Wires 2 project in fluidtight manner from end 9, whereas, from end 8, there project axially, in fluidtight manner, respective blade type contacts 22, each connected to a respective terminal 13 and to a respective wire 2 via said terminal 13.
  • the non-limiting embodiment shown presents two wires 2 and two contacts 22 arranged side by side, said contacts 22 being separated by a projecting, transverse rib 23 formed on end 8 and integral in one piece with block 6, so as to electrically insulate wires 2 both from each other and from panel 3.
  • Coupling 7 comprises a first substantially-cylindrical annular end portion 25 designed, in use, to fit on to the projecting portion of end 8 of block 6, and terminating in an elastically-deformable, flared, truncated-cone-shaped annular edge 26 designed, when elements 6 and 7 are connected, to cooperate in contacting manner with the outer surface 21 of panel 3, and defining the mouth of coupling 7 towards end 8 of block 6.
  • Coupling 7 also comprises a second annular end portion 27 opposite end portion 25, and similar in design to the outer portion of a Pakard connector, i.e. in such a manner as to receive in fluidtight manner an electric plug 28 designed to cooperate with contacts 22.
  • Plug 28 (shown by the dotted line) preferably presents deformable outer annular sealing elements 40 designed to cooperate internally with portion 27; and an outer stop element 41 designed to click on to an outer projection 42 of portion 27 of coupling 7, which, together with end 8 of block 6 housed inside the same, defines a standard Packard connector.
  • wires 2 projecting from end 9 of block 6 are connected to the sensors and/or actuators on gearbox 4 with which electric signals are to be exchanged.
  • Block 6 is then fitted through hole 5, so that end 8 supporting projecting contacts 22 projects from hole 5, which is plugged in fluidtight manner by end 9 by virtue of seal 18 and flange 15.
  • End 8 extending outwards of surface 21 beyond hole 5 is then fitted with bottom end 25 of coupling 7 by engaging teeth 30 inside grooves 31.
  • coupling 7 is fitted axially on to end 8 and pushed towards end 9, flexible edge 26 contacts surface 21 just before teeth 30 come to the end of grooves 31. Further pressure is then exerted on coupling 7, either manually or by means of a robot, so as to flex edge 26 and enable teeth 30 to slide to the end of grooves 31.
  • Coupling 7 is then turned so as to slide teeth 30 into the transverse portion of L-shaped grooves 31, and into the angular position corresponding to recesses 34.
  • O-ring seal 18 is housed in an annular seat consisting of a groove 50 formed on a front surface 51 of flange 15 facing end 8 of block 6, i.e. with the surface of flange 15 cooperating directly with inner surface 10 of panel 3.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)

Description

  • The present invention relates to a through type electrical connector enabling fluidtight passage of electric signals, supplied by one or more conducting wires, through a partition, in particular, a panel of a gearbox or any other mechanical vehicle component. US-A-3 350 587 discloses a fluidtight electrical connector for a submersible electric motor, comprising a plastics plug fitted in a hole in the wall of the motor.
  • With the increase in the number of electronically controlled vehicle components, direct internal wiring is now required for numerous oil bath lubricated components, such as gearboxes, and/or those requiring fluidtight sealing. Said wiring provides for two functions: (1) for picking up electric signals produced by pressure, temperature or level sensors, etc. which, if they are to operate correctly, must be installed inside the component itself; and (2) for supplying the component with electric control signals for actuators such as continuous gear shift control electrovalves.
  • The only known solution as yet consists in threading an electric wire through a plastic cap, which is then fitted inside a hole in the partition. The obvious drawback of such a solution is that it rules out any possibility of employing preassembled, off-line-tested subassemblies. Moreover, reliability is also poor, due to vibration on the mechanical components working the cap loose and thus impairing sealing performance. The aim of the present invention is to provide a through type electrical connector designed to enable complete preassembly of the mechanical components of a vehicle, through one panel of which an electric signal is to be supplied, while at the same time ensuring permanent fluidtight sealing of the mechanical component itself. With this aim in view, according to the present invention, there is provided a through type electrical connector enabling fluidtight passage of electric signals through a partition, in particular, a vehicle gearbox panel, said signals being supplied by at least one conducting wire, and said connector comprising:
    • a block housing a terminal of said conducting wire, and having a first end from which said conducting wire projects in fluidtight manner, and a second end, opposite the first, from which projects in fluidtight manner a blade type electrical contact connected to said terminal; said block being longer than the thickness of said partition, having an external seal, and being housed in fluidtight manner in a hole in said partition, with said first end contacting the inner surface of said partition and said second end projecting, through said hole, in relation to the outer surface of said partition; and
    • a lock coupling for said block, said coupling being bayonet-connected to said second end of said block, in such a manner as to contact said outer surface of said partition.
  • A non-limiting embodiment of the present invention will be described by way of example with reference to the accompanying drawings, in which :
    • Fig.1 shows a cross section of a connector in accordance with the teachings of the present invention;
    • Fig.2 shows a section along line II-II of the Fig.1 connector;
    • Fig.3 shows a smaller-scale view in perspective of a component on the Fig. 1 connector;
    • Fig.4 shows a top plan view of the connector according to the present invention;
    • Fig.5 shows a cross section, similar to Fig.1, of a variation of the connector according to the present invention.
  • Number 1 in Fig.s 1 to 4 indicates a through type electrical connector enabling fluidtight passage of electric signals, supplied by one or more conducting wires 2, through a panel 3 of any type of mechanical component, e.g. a known gearbox 4 (shown only partly),of any known type of vehicle (not shown).
  • Connector 1 is fitted in externally projecting manner on to gearbox 4 through a hole 5 in panel 3, and comprises a cylindrical block 6 housed in projecting manner through hole 4; and a lock coupling 7 for block 6, bayonet-connected to block 6 and, like the latter, preferably molded from synthetic plastic material. Block 6 presents two opposite front ends 8 and 9 designed to cooperate respectively with coupling 7 and with hole 5 and the inner surface 10 of panel 3, and houses respective ends 12 of wires 2 and respective terminals 13 of the same molded inside block 6 so as to form one piece with the same. Said end 9 comprises a peripheral stop flange 15 designed to contact surface 10 about hole 5, the remainder of end 9 being housed, in use, inside hole 5 and plugging the same in fluidtight manner by virtue of an annular O-ring type seal 18 housed inside a groove 19 formed on an outer cylindrical lateral surface 20 of end 9 close to flange 15. Block 6 is axially longer than the thickness of panel 3, so that, in use, end 8 projects axially through hole 5 in relation to the outer surface 21 of panel 3, opposite surface 10. Wires 2 project in fluidtight manner from end 9, whereas, from end 8, there project axially, in fluidtight manner, respective blade type contacts 22, each connected to a respective terminal 13 and to a respective wire 2 via said terminal 13. The non-limiting embodiment shown presents two wires 2 and two contacts 22 arranged side by side, said contacts 22 being separated by a projecting, transverse rib 23 formed on end 8 and integral in one piece with block 6, so as to electrically insulate wires 2 both from each other and from panel 3.
  • Coupling 7 comprises a first substantially-cylindrical annular end portion 25 designed, in use, to fit on to the projecting portion of end 8 of block 6, and terminating in an elastically-deformable, flared, truncated-cone-shaped annular edge 26 designed, when elements 6 and 7 are connected, to cooperate in contacting manner with the outer surface 21 of panel 3, and defining the mouth of coupling 7 towards end 8 of block 6. Coupling 7 also comprises a second annular end portion 27 opposite end portion 25, and similar in design to the outer portion of a Pakard connector, i.e. in such a manner as to receive in fluidtight manner an electric plug 28 designed to cooperate with contacts 22. When elements 6 and 7 are connected, contacts 22, together with rib 23, are housed inside end 27, which projects outwards from end 8 about contacts 22. Elements 6 and 7 are locked together by means of a pair of opposed radial teeth 30 on element 7, and a pair of respective L-shaped longitudinal grooves 31 on element 6, inside which teeth 30 fit in sliding manner. Grooves 31 (Figure 3) are formed on the outside of end 8, so as to interrupt, at the inlet end, the continuity of front edge 33 of end 8, and terminate, on the opposite side to edge 33, in respective recesses 34 designed to house teeth 30 and extending rearwards in the direction of edge 33 and, consequently, also of coupling 7.
  • Plug 28 (shown by the dotted line) preferably presents deformable outer annular sealing elements 40 designed to cooperate internally with portion 27; and an outer stop element 41 designed to click on to an outer projection 42 of portion 27 of coupling 7, which, together with end 8 of block 6 housed inside the same, defines a standard Packard connector. In actual use, during assembly of gearbox 4, wires 2 projecting from end 9 of block 6 are connected to the sensors and/or actuators on gearbox 4 with which electric signals are to be exchanged. Block 6 is then fitted through hole 5, so that end 8 supporting projecting contacts 22 projects from hole 5, which is plugged in fluidtight manner by end 9 by virtue of seal 18 and flange 15. End 8 extending outwards of surface 21 beyond hole 5 is then fitted with bottom end 25 of coupling 7 by engaging teeth 30 inside grooves 31. As coupling 7 is fitted axially on to end 8 and pushed towards end 9, flexible edge 26 contacts surface 21 just before teeth 30 come to the end of grooves 31. Further pressure is then exerted on coupling 7, either manually or by means of a robot, so as to flex edge 26 and enable teeth 30 to slide to the end of grooves 31. Coupling 7 is then turned so as to slide teeth 30 into the transverse portion of L-shaped grooves 31, and into the angular position corresponding to recesses 34. At this point, the axial pressure on coupling 7 is released, thus causing it, by virtue of the thrust exerted by edge 26, to move rearwards in the direction of edge 33, and so engage teeth 30 inside recesses 34, and lock coupling 7 both axially and angularly on to block 6. Block 6 is thus locked integral with panel 3 and gripped between coupling 7 and stop flange 15, with end 8 supporting electrical contacts 22 housed safely inside portion 27 which defines an electrical receptacle together with end 8. At the final on-line assembly stage, wherein the gearbox 4 subassembly is fitted on to the vehicle, plug 28 is fitted inside said receptacle, thus enabling fast, troublefree connection of the electrical components housed beyond panel 3 to the main circuit on the vehicle. In the Figure 5 embodiment, wherein the parts similar or identical to those already described are indicated using the same numbering system, for threading wires 2 through a thin panel 3, O-ring seal 18 is housed in an annular seat consisting of a groove 50 formed on a front surface 51 of flange 15 facing end 8 of block 6, i.e. with the surface of flange 15 cooperating directly with inner surface 10 of panel 3.

Claims (8)

  1. A through type electrical connector (1) enabling fluidtight passage of electric signals through a partition (3), in particular, a vehicle gearbox panel, said signals being supplied by at least one conducting wire (2), and said connector comprising:
    - a block (6) housing a terminal (13) of said conducting wire, and having a first end from which said conducting wire (2) projects in fluidtight manner, and a second end (8), opposite the first, from which projects in fluidtight manner a blade type electrical contact (22) connected to said terminal; said block being longer than the thickness of said partition, having an external seal (18), and being housed in fluidtight manner in a hole (5) in said partition (3), with said first end (9) contacting the inner surface (10) of said partition and said second end projecting, through said hole (5), in relation to the outer surface (21) of said partition; and
    - a lock coupling (7) for said block, said coupling being bayonet-connected to said second end of said block, in such a manner as to contact said outer surface (21) of said partition (3).
  2. A connector as claimed in Claim 1, characterised by the fact that said block and said lock coupling are formed from synthetic plastic resin; said conducting wire and said terminal being embedded in said block so as to form one piece with the same.
  3. A connector as claimed in Claim 1 or 2, characterised by the fact that said first end of said block comprises a peripheral stop flange designed to contact said inner surface of said partition.
  4. A connector as claimed in Claim 3, characterised by the fact that said seal consists of an annular element housed inside a groove formed on an outer cylindrical lateral surface of said first end, close to said flange.
  5. A connector as claimed in Claim 3, characterised by the fact that said seal consists of an annular element housed inside a groove formed on a front surface of said flange facing said second end of said block.
  6. A connector as claimed in any of the foregoing Claims, characterised by the fact that said lock coupling comprises a first annular portion designed to fit on to said second end of said block; said annular portion of said coupling presenting internal teeth designed to engage in sliding manner respective L-shaped longitudinal grooves formed externally on said second end of said block, so as to interrupt a front edge of the same.
  7. A connector as claimed in Claim 6, characterised by the fact that said L-shaped grooves terminate in respective recesses designed to house said teeth and extending from said lock coupling side; and by the fact that, towards said second end of said block, said lock coupling presents a flexible, truncated-cone-shaped outer edge designed to contact said outer surface of said partition.
  8. A connector as claimed in any one of the foregoing Claims, characterised by the fact that said lock coupling comprises a second annular portion which, when said coupling is connected to said block, projects externally from said second end of said block and about said blade type contact; said second annular portion being designed to receive in fluidtight manner an electrical plug designed to cooperate with said blade type contact.
EP89103418A 1988-03-04 1989-02-27 Through type electrical connector enabling fluidtight passage of electric signals through a partition, in particular, a vehicle gearbox panel. Expired - Lifetime EP0331084B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8852950U IT214162Z2 (en) 1988-03-04 1988-03-04 PASS-THROUGH ELECTRIC CONNECTOR TO ALLOW THE FLUID-PROOF PASSAGE OF ELECTRIC SIGNALS THROUGH A WALL, IN PARTICULAR OF A VEHICLE CHANGE BOX
IT5295088U 1988-03-04

Publications (3)

Publication Number Publication Date
EP0331084A2 EP0331084A2 (en) 1989-09-06
EP0331084A3 EP0331084A3 (en) 1990-09-12
EP0331084B1 true EP0331084B1 (en) 1994-01-26

Family

ID=11278788

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89103418A Expired - Lifetime EP0331084B1 (en) 1988-03-04 1989-02-27 Through type electrical connector enabling fluidtight passage of electric signals through a partition, in particular, a vehicle gearbox panel.

Country Status (5)

Country Link
EP (1) EP0331084B1 (en)
BR (1) BR8901045A (en)
DE (1) DE68912618T2 (en)
ES (1) ES2048776T3 (en)
IT (1) IT214162Z2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2292267A (en) * 1994-08-11 1996-02-14 Whitaker Corp A fuel pump unit and an electrical connector therefor
DE4431882C1 (en) * 1994-09-07 1995-11-02 Lucas Ind Plc Electronically-regulated braking servo
JP2003262265A (en) * 2002-03-08 2003-09-19 Jatco Ltd Method and structure for installing terminal connector
ES2226565B1 (en) * 2003-06-02 2006-06-01 Auxiliar De Componentes Electricos, S.A. SELF-CONCENTRATING CONNECTOR FOR MOBILE COUPLINGS.
DE102006036097B3 (en) * 2006-08-02 2008-01-31 Tyco Electronics Amp Gmbh Plug connector for interconnecting two electrical lines, particularly for leading electrical line from transmission area to clutch area for use with e.g. motor vehicle, has component which is connected by screw thread with housing
EP2256753B1 (en) * 2009-05-25 2011-12-07 ABB Technology AG Electricity conductor for a high voltage feed
CN111584172B8 (en) * 2020-05-28 2021-01-19 山东广域科技有限责任公司 Improved pull wire insulator

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3350587A (en) * 1965-03-31 1967-10-31 Vincent K Smith Electrical plug and connector
US4025714A (en) * 1975-04-04 1977-05-24 Electrical Utilities Company Self-locking terminal assembly

Also Published As

Publication number Publication date
ES2048776T3 (en) 1994-04-01
EP0331084A3 (en) 1990-09-12
BR8901045A (en) 1989-10-24
IT8852950V0 (en) 1988-03-04
IT214162Z2 (en) 1990-04-02
EP0331084A2 (en) 1989-09-06
DE68912618D1 (en) 1994-03-10
DE68912618T2 (en) 1994-05-19

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