EP0901194A2 - Two-part electrical connector - Google Patents
Two-part electrical connector Download PDFInfo
- Publication number
- EP0901194A2 EP0901194A2 EP98202645A EP98202645A EP0901194A2 EP 0901194 A2 EP0901194 A2 EP 0901194A2 EP 98202645 A EP98202645 A EP 98202645A EP 98202645 A EP98202645 A EP 98202645A EP 0901194 A2 EP0901194 A2 EP 0901194A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- latching
- locking ring
- ring
- tang
- 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
Links
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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
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/627—Snap or like fastening
- H01R13/6275—Latching arms not integral with the housing
Definitions
- the present invention relates to a two-part electrical connector in which one of the parts can be mounted in a wall.
- the present invention has particular application for providing an electrical connection through a wall in a motor vehicle.
- a two-part electrical connector in accordance with the present invention comprises a first part having a housing of electrically insulating material and which is substantially annular; a second part having a housing of electrically insulating material and which makes a sliding fit inside the housing of the first part, the housing of the second part having a radially outwardly extending substantially rigid lug; a locking ring which is substantially annular and which is retained in the housing of the first part, the locking ring being capable of movement in an axial direction relative to the housing of the first part between a first position and a second position; a latching ring which is substantially annular and which is retained in the housing of the first part and is partially surrounded by the locking ring, the latching ring having a radially inwardly extending resilient latching tang which can be engaged by, and latches with, the lug on the housing of the second part on sliding the housing of the second part into the housing of the first part; and a spring acting on the locking ring to bias the locking ring towards the first position
- the present invention overcomes the problems associated with the prior art connectors.
- the two-part electrical connector 10 in accordance with the present invention, comprises the first part 12 which includes a housing 14 of electrically insulating material and which is substantially annular; and the second part 16 which includes a housing 18 of electrically insulating material.
- the housing 18 of the second part 16 is mated with the housing 14 of the first part 12 by sliding the housing 18 inside the housing 14.
- Each housing 14,18 has complementary electric contacts (not shown) secured therein which make electrical connections when the housings are mated together.
- the connector 10 further includes a locking ring 20, a latching ring 22, a coil spring 24, and preferably a ring seal 26.
- the locking ring 20 is substantially annular and has a number of radially outwardly directed resilient tabs 28 which make a sliding fit in corresponding grooves 30 formed in the inner surface 32 of the housing 14 of the first part 12 and then make a snap fit behind a shoulder 34 in the inner surface to latch the locking ring and the housing of the first part together.
- the locking ring 20 is capable of moving in an axial direction A relative to the housing 14 of the first part between a first position in which the tabs 28 engage the shoulder 34 and a second position in which the tabs are axially spaced from the shoulder.
- the coil spring 24 is positioned between the locking ring 20 and another internal shoulder (not shown) which is spaced from, and faces, the shoulder 34 inside the housing 14, and acts on the locking ring 20 to bias the locking ring into its first position and away from the housing 14 of the first part 12.
- the locking ring 20 substantially surrounds the housing 18 of the second part 16.
- the latching ring 22 is substantially annular and on assembly of the connector 10 is positioned between an internal shoulder 36 on the locking ring 20 and an internal shoulder (not shown) in the housing 14 of the first part 12.
- the ring seal 26 is preferably positioned between the latching ring 22 and the housing 14 of the first part 12.
- the latching ring 22 is surrounded partially by the locking ring 20 and partially by the coil spring 24.
- the latching ring 22 substantially surrounds the housing 18 of the second part 16.
- the latching ring 22 has a number of radially inwardly extending latching tangs 38 which are resiliently mounted at the free end 40 of axially extending resilient legs 42 positioned in apertures 44 in the latching ring.
- the legs 42 are substantially U-shaped and connected to the remainder of the latching ring 22 at the ends 46 of the arms of the U. Other suitable shapes for the legs 42 may be used.
- the latching tangs 38 are capable of slight pivotal movement relative to the remainder of the latching ring 22 at the free end 40 of the legs 42 and at the connection 46 of the legs to the remainder of the latching ring. Any suitable number of latching tangs may be used.
- the locking ring 20 has a corresponding number of circumferentially extending bars 48 and circumferentially extending apertures 50, the apertures being axially adjacent the bars.
- the locking ring 20 is also capable of moving in the axial direction A relative to the latching ring 22.
- the locking ring 20 preferably has a number of inwardly directed axially extending ribs 52 which make a sliding fit in corresponding grooves 54 in the latching ring 22 to aid the relative axial movement, but to substantially prevent relative rotation between the locking ring and the latching ring.
- the bars 48 are positioned radially adjacent the latching tangs 38 on the latching ring 22.
- the apertures 50 are positioned radially adjacent the latching tangs 38 on the latching ring 22.
- the housing 18 of the second part 16 has a radially outwardly extending rigid lug which is defined by a circumferentially extending rib 56 formed on the outer surface of the housing 18.
- a number of separate rigid lugs may be formed on the housing 18.
- the rib 56 engages the latching tangs 38 on the latching ring 22.
- Both engaging surfaces 58 of the latching tangs 38 and both engaging surfaces 60 of the rib 56 are preferably chamfered to aid latching and delatching as described in more detail below.
- FIG. 7a shows the arrangement as the housing 18 of the second part 16 is slid into the housing 14 of the first part 12.
- the rib 56 engages the latching tang 38.
- the locking ring 20 is biased by the spring 24 to its first position with the bar 48 of the locking ring positioned adjacent the latching tang 38.
- Further movement of the housing 18 in the direction of the arrow in Figure 7b causes the latching tang 38 to pivot relative to the free end 40 of the leg 42 to allow the rib 56 to pass the latching tang 38.
- the chamfered engaging surfaces 58,60 aid the passage of the rib 56 passed the latching tang 38.
- the bar 48 on the locking ring 20 prevents radial outward movement of the latching tang 38 ( Figure 7c) and so any unauthorised attempt to pull the housing 18 out of the housing 14 is substantially prevented by the rib 56 engaging the latching tang 38, and the latching tang engaging the bar 48.
- the locking ring 20 can be manually push in the axial direction (arrow X in Figure 7d) to its second position against the bias of the spring 24.
- the aperture 50 in the locking ring is positioned radially adjacent the latching tang 38.
- Pulling of the housing 18 in the opposed axial direction causes the rib 56 to engage the latching tang 38 to pivot the latching tang radially outwards at the connecting end 46 of the leg 42 into the aperture 50 allowing the housing 18 to be disconnected from the housing 14 of the first part 12.
- the chamfered engaging surfaces 58,60 aid the passage of the rib 56 passed the latching tang 38.
- connection of the two parts 12,16 is achieved by a simple push fit.
- the snap fit of the rib 56 behind the latching tangs 38 provides an audible sound for confirming full and correct mating of the two parts 12,16.
- the locking ring 20 prevents unauthorised disconnection of the two parts 12,16. Disconnection can be easily achieved simply by manual depression of the locking ring 20.
- the arrangement of the two-part connector of the present invention therefore overcomes the disadvantages of the prior art connectors in areas where access is difficult.
Landscapes
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
Description
- The present invention relates to a two-part electrical connector in which one of the parts can be mounted in a wall. The present invention has particular application for providing an electrical connection through a wall in a motor vehicle.
- Where it is required to make an electrical connection through a wall in a motor vehicle (for example, one of the door pillars), it is normal practice to secure a first part of an electrical connector in an aperture in the wall, and plug a second part of the electrical connector to the first part. Each part of the connector defines a housing for electrical contacts which electrically connect on mating the first and second parts together. On full mating of the two parts of the connector, flexible latching tabs can be used to lock the two parts together. In areas where access is difficult, it is not always easy to fully mate the two parts of the connector, and it is not easy always to see that full mating has actually occurred.
- It is an object of the present invention to provide a latching arrangement between the two parts of an electrical connector which is easy to achieve.
- A two-part electrical connector in accordance with the present invention comprises a first part having a housing of electrically insulating material and which is substantially annular; a second part having a housing of electrically insulating material and which makes a sliding fit inside the housing of the first part, the housing of the second part having a radially outwardly extending substantially rigid lug; a locking ring which is substantially annular and which is retained in the housing of the first part, the locking ring being capable of movement in an axial direction relative to the housing of the first part between a first position and a second position; a latching ring which is substantially annular and which is retained in the housing of the first part and is partially surrounded by the locking ring, the latching ring having a radially inwardly extending resilient latching tang which can be engaged by, and latches with, the lug on the housing of the second part on sliding the housing of the second part into the housing of the first part; and a spring acting on the locking ring to bias the locking ring towards the first position; wherein the locking ring has a circumferentially extending bar and a circumferentially extending aperture adjacent the bar in an axial direction; wherein in the first position of the locking ring, the bar is adjacent the latching tang on the latching ring to substantially prevent radially outward movement of the latching tang; and wherein in the second position of the locking ring, the aperture is adjacent the latching tang on the latching ring to allow radially outward movement of the latching tang.
- The present invention overcomes the problems associated with the prior art connectors.
- The present invention will now be described, by way of example, with reference to the accompanying drawings, in which:-
- Figure 1 is an exploded view of a two-part electrical connector is accordance with the present invention;
- Figure 2 is a perspective view, partially in cross-section, of the locking ring and latching ring of the connector of Figure 1;
- Figure 3 is a side view of the locking ring of the connector of Figure 1;
- Figure 4 is a cross-sectional view of the locking ring of the connector of Figure 1;
- Figure 5 is a side view of the latching ring of the connector of Figure 1;
- Figure 6 is a partial cross-sectional view of the locking ring and the housing of the first part of the connector of Figure 1; and
- Figures 7a to 7d are cross-sectional views of the latching system of the connector of Figure 1 at various stages of latching and delatching.
-
- Referring to the drawings, the two-part
electrical connector 10 in accordance with the present invention, comprises thefirst part 12 which includes ahousing 14 of electrically insulating material and which is substantially annular; and thesecond part 16 which includes ahousing 18 of electrically insulating material. Thehousing 18 of thesecond part 16 is mated with thehousing 14 of thefirst part 12 by sliding thehousing 18 inside thehousing 14. Eachhousing - The
connector 10 further includes alocking ring 20, alatching ring 22, acoil spring 24, and preferably aring seal 26. Thelocking ring 20 is substantially annular and has a number of radially outwardly directedresilient tabs 28 which make a sliding fit incorresponding grooves 30 formed in theinner surface 32 of thehousing 14 of thefirst part 12 and then make a snap fit behind ashoulder 34 in the inner surface to latch the locking ring and the housing of the first part together. Thelocking ring 20 is capable of moving in an axial direction A relative to thehousing 14 of the first part between a first position in which thetabs 28 engage theshoulder 34 and a second position in which the tabs are axially spaced from the shoulder. Thecoil spring 24 is positioned between thelocking ring 20 and another internal shoulder (not shown) which is spaced from, and faces, theshoulder 34 inside thehousing 14, and acts on thelocking ring 20 to bias the locking ring into its first position and away from thehousing 14 of thefirst part 12. On mating of thehousings locking ring 20 substantially surrounds thehousing 18 of thesecond part 16. - The
latching ring 22 is substantially annular and on assembly of theconnector 10 is positioned between aninternal shoulder 36 on thelocking ring 20 and an internal shoulder (not shown) in thehousing 14 of thefirst part 12. Thering seal 26 is preferably positioned between thelatching ring 22 and thehousing 14 of thefirst part 12. Thelatching ring 22 is surrounded partially by thelocking ring 20 and partially by thecoil spring 24. On mating of thehousings latching ring 22 substantially surrounds thehousing 18 of thesecond part 16. Thelatching ring 22 has a number of radially inwardly extendinglatching tangs 38 which are resiliently mounted at thefree end 40 of axially extendingresilient legs 42 positioned inapertures 44 in the latching ring. In this preferred arrangement, thelegs 42 are substantially U-shaped and connected to the remainder of thelatching ring 22 at theends 46 of the arms of the U. Other suitable shapes for thelegs 42 may be used. With this arrangement, thelatching tangs 38 are capable of slight pivotal movement relative to the remainder of thelatching ring 22 at thefree end 40 of thelegs 42 and at theconnection 46 of the legs to the remainder of the latching ring. Any suitable number of latching tangs may be used. - The
locking ring 20 has a corresponding number of circumferentially extendingbars 48 and circumferentially extendingapertures 50, the apertures being axially adjacent the bars. Thelocking ring 20 is also capable of moving in the axial direction A relative to thelatching ring 22. Thelocking ring 20 preferably has a number of inwardly directed axially extendingribs 52 which make a sliding fit incorresponding grooves 54 in thelatching ring 22 to aid the relative axial movement, but to substantially prevent relative rotation between the locking ring and the latching ring. In the first position of thelocking ring 20, thebars 48 are positioned radially adjacent thelatching tangs 38 on thelatching ring 22. In the second position of thelocking ring 20, theapertures 50 are positioned radially adjacent thelatching tangs 38 on thelatching ring 22. - The
housing 18 of thesecond part 16 has a radially outwardly extending rigid lug which is defined by a circumferentially extendingrib 56 formed on the outer surface of thehousing 18. Alternatively, a number of separate rigid lugs may be formed on thehousing 18. On mating of thehousing 18 of thesecond part 16 with thehousing 14 of thefirst part 12, therib 56 engages thelatching tangs 38 on thelatching ring 22. Bothengaging surfaces 58 of thelatching tangs 38 and bothengaging surfaces 60 of therib 56 are preferably chamfered to aid latching and delatching as described in more detail below. - Latching and delatching of the
parts connector 10 is illustrated in Figures 7a to 7d. Figure 7a shows the arrangement as thehousing 18 of thesecond part 16 is slid into thehousing 14 of thefirst part 12. As thehousing 18 moves in the direction of the arrow, therib 56 engages thelatching tang 38. Thelocking ring 20 is biased by thespring 24 to its first position with thebar 48 of the locking ring positioned adjacent thelatching tang 38. Further movement of thehousing 18 in the direction of the arrow in Figure 7b (to mate the twoparts 12,16) causes thelatching tang 38 to pivot relative to thefree end 40 of theleg 42 to allow therib 56 to pass thelatching tang 38. The chamferedengaging surfaces rib 56 passed thelatching tang 38. Thebar 48 on thelocking ring 20 prevents radial outward movement of the latching tang 38 (Figure 7c) and so any unauthorised attempt to pull thehousing 18 out of thehousing 14 is substantially prevented by therib 56 engaging thelatching tang 38, and the latching tang engaging thebar 48. However, if a need arises to remove thehousing 18 of thesecond part 16 from thehousing 14 of thefirst part 12 in order to disconnect the two parts, thelocking ring 20 can be manually push in the axial direction (arrow X in Figure 7d) to its second position against the bias of thespring 24. In the second position of thelocking ring 20, theaperture 50 in the locking ring is positioned radially adjacent thelatching tang 38. Pulling of thehousing 18 in the opposed axial direction (arrow Y in Figure 7d) causes therib 56 to engage thelatching tang 38 to pivot the latching tang radially outwards at the connectingend 46 of theleg 42 into theaperture 50 allowing thehousing 18 to be disconnected from thehousing 14 of thefirst part 12. Again, the chamferedengaging surfaces rib 56 passed thelatching tang 38. - Connection of the two
parts rib 56 behind thelatching tangs 38 provides an audible sound for confirming full and correct mating of the twoparts locking ring 20 prevents unauthorised disconnection of the twoparts locking ring 20. The arrangement of the two-part connector of the present invention therefore overcomes the disadvantages of the prior art connectors in areas where access is difficult.
Claims (8)
- A two-part electrical connector comprising a first part having a housing of electrically insulating material and which is substantially annular; a second part having a housing of electrically insulating material and which makes a sliding fit inside the housing of the first part, the housing of the second part having a radially outwardly extending substantially rigid lug; a locking ring which is substantially annular and which is retained in the housing of the first part, the locking ring being capable of movement in an axial direction relative to the housing of the first part between a first position and a second position; a latching ring which is substantially annular and which is retained in the housing of the first part and is partially surrounded by the locking ring, the latching ring having a radially inwardly extending resilient latching tang which can be engaged by, and latches with, the lug on the housing of the second part on sliding the housing of the second part into the housing of the first part; and a spring acting on the locking ring to bias the locking ring towards the first position; wherein the locking ring has a circumferentially extending bar and a circumferentially extending aperture adjacent the bar in an axial direction; wherein in the first position of the locking ring, the bar is adjacent the latching tang on the latching ring to substantially prevent radially outward movement of the latching tang; and wherein in the second position of the locking ring, the aperture is adjacent the latching tang on the latching ring to allow radially outward movement of the latching tang.
- A two-part electrical connector as claimed in Claim 1, wherein the locking ring has outwardly extending tabs which engage an internal shoulder in the housing of the first part to retain the locking ring in the housing of the first part.
- A two-part electrical connector as claimed in Claim 1 or Claim 2, wherein the locking ring has an internal axially extending rib which makes a sliding fit in a corresponding groove in the latching ring to substantially prevent relative rotation between the locking ring and the latching ring.
- A two-part electrical connector as claimed in any one of Claims 1 to 3, wherein the latching tang is pivotally mounted on the free end of an axially extending leg which is positioned in an aperture in, and pivotally connected to, the latching ring.
- A two-part electrical connector as claimed in Claim 4, wherein the leg is substantially U-shaped.
- A two-part electrical connector as claimed in any one of Claims 1 to 5, wherein the engaging surfaces of the latching tang and the lug are chamfered.
- A two-part electrical connector as claimed in any one of Claims 1 to 6, wherein the lug is defined by a circumferentially extending rib on the housing of the second part.
- A two-part electrical connector as claimed in any one of Claims 1 to 7, wherein the latching ring has two or more latching tangs.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9718894A GB2329080B (en) | 1997-09-08 | 1997-09-08 | Two-part electrical connector |
GB9718894 | 1997-09-08 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0901194A2 true EP0901194A2 (en) | 1999-03-10 |
EP0901194A3 EP0901194A3 (en) | 2000-11-02 |
EP0901194B1 EP0901194B1 (en) | 2004-03-31 |
Family
ID=10818625
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19980202645 Expired - Lifetime EP0901194B1 (en) | 1997-09-08 | 1998-08-06 | Two-part electrical connector |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0901194B1 (en) |
DE (1) | DE69822738T2 (en) |
GB (1) | GB2329080B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1081800A2 (en) * | 1999-08-16 | 2001-03-07 | Delphi Technologies, Inc. | Electrical connector |
EP2133958A1 (en) * | 2008-06-09 | 2009-12-16 | Interlemo Holding S.A. | Female plug for self-locking connector system |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013026850A1 (en) | 2011-08-22 | 2013-02-28 | Ruhland, Bernd | Pen- injector with magnetically driven rodless piston |
DE102016104078B3 (en) * | 2016-03-07 | 2017-02-02 | Walther-Werke Ferdinand Walther Gmbh | Electrical plug device with locking mechanism |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1992008259A1 (en) * | 1990-10-31 | 1992-05-14 | Cm S.R.L. | A device for connecting a plug to a socket in coaxial connectors |
GB2272582A (en) * | 1992-11-04 | 1994-05-18 | M A Com Greenpar Limited | Latching coaxial connector |
DE4325895C1 (en) * | 1993-08-02 | 1994-12-22 | Contact Gmbh | Connector pair |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4927374A (en) * | 1986-12-12 | 1990-05-22 | Amp Incorporated | Modular electrical connector assembly |
-
1997
- 1997-09-08 GB GB9718894A patent/GB2329080B/en not_active Expired - Fee Related
-
1998
- 1998-08-06 EP EP19980202645 patent/EP0901194B1/en not_active Expired - Lifetime
- 1998-08-06 DE DE69822738T patent/DE69822738T2/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1992008259A1 (en) * | 1990-10-31 | 1992-05-14 | Cm S.R.L. | A device for connecting a plug to a socket in coaxial connectors |
GB2272582A (en) * | 1992-11-04 | 1994-05-18 | M A Com Greenpar Limited | Latching coaxial connector |
DE4325895C1 (en) * | 1993-08-02 | 1994-12-22 | Contact Gmbh | Connector pair |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1081800A2 (en) * | 1999-08-16 | 2001-03-07 | Delphi Technologies, Inc. | Electrical connector |
EP1081800A3 (en) * | 1999-08-16 | 2004-01-02 | Delphi Technologies, Inc. | Electrical connector |
EP2133958A1 (en) * | 2008-06-09 | 2009-12-16 | Interlemo Holding S.A. | Female plug for self-locking connector system |
US7918677B2 (en) | 2008-06-09 | 2011-04-05 | Interlemo Holding S.A. | Female connector for self-locking connector system |
RU2497247C2 (en) * | 2008-06-09 | 2013-10-27 | Интерлемо Холдинг С.А. | Socket connectors for self-fixing connection system |
Also Published As
Publication number | Publication date |
---|---|
DE69822738D1 (en) | 2004-05-06 |
GB2329080A (en) | 1999-03-10 |
EP0901194B1 (en) | 2004-03-31 |
GB2329080B (en) | 2002-04-17 |
GB9718894D0 (en) | 1997-11-12 |
EP0901194A3 (en) | 2000-11-02 |
DE69822738T2 (en) | 2004-08-12 |
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