EP0576324B1 - Abgedichtete Drahtdurchführung und elektrischer Steckverbinder mit einer solchen Drahtdurchführung - Google Patents
Abgedichtete Drahtdurchführung und elektrischer Steckverbinder mit einer solchen Drahtdurchführung Download PDFInfo
- Publication number
- EP0576324B1 EP0576324B1 EP93401497A EP93401497A EP0576324B1 EP 0576324 B1 EP0576324 B1 EP 0576324B1 EP 93401497 A EP93401497 A EP 93401497A EP 93401497 A EP93401497 A EP 93401497A EP 0576324 B1 EP0576324 B1 EP 0576324B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- grommet
- passages
- chambers
- sealing
- free
- 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
Links
- 238000007789 sealing Methods 0.000 title claims description 18
- 229920001971 elastomer Polymers 0.000 claims description 10
- 239000000806 elastomer Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 6
- 239000013536 elastomeric material Substances 0.000 description 5
- 230000000295 complement effect Effects 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Images
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
- H01R13/5208—Sealing means between cable and housing, e.g. grommet having at least two cable receiving openings
Definitions
- the present invention relates to electrical connectors of the type comprising: an insulating body pierced with receiving passages intended for contacts each provided with a connecting wire; and a rear grommet, often called a "grommet", of elastomeric material, pierced with several individual passages for the wires. It relates more particularly to such grommets intended to prevent the entry of pollutants between the grommet on the one hand, the wires and the insulating body on the other hand.
- Grommets are widely used at present with individual passages having circular sealing lips resting on the wire.
- the wires can be of very variable diameter.
- the grommets are generally made by molding.
- the complexity of the pins required to form passages having two lips of different diameter makes demolding delicate and leads to a high percentage of scrap. Lips can indeed be destroyed during the demolding and during the insertion of the contacts.
- this type of grommet can only be produced with a slow-crosslinking elastomeric material, which is only available from a small number of suppliers.
- EP-A-0 407 863 discloses a similar grommet.
- the present invention aims in particular to provide a grommet which responds better than those previously known to the requirements of practice, in particular in that it makes it possible to constitute in a simple manner passages having a sealing barrier accepting wires of very variable diameter .
- the invention provides for this purpose a grommet according to claim 1 or 2 claim 2 being divided into two parts with respect to EP-A 0 407 803.
- the chambers of free volume can communicate only with one side of the pass -son.
- the front face of the grommet is secured, generally by gluing, with an insulating connector body, the communication face of the chambers chosen is advantageously the front face; thus each free volume chamber constitutes an air pocket which can be pressurized and the reduction in support on the wire, which would normally result from the absence of material at the location of the chamber, is compensated by the increased gas pressure in the chamber.
- the pressing pressure on each wire remains substantially constant over the entire periphery of the latter, which maintains the seal.
- the invention is particularly applicable to connectors in which the insulating body and the grommet are contained in a housing provided with means of coupling with the housing of a complementary connector, a rear cup being able to be provided to repel the grommet forward.
- the grommet will generally be made of elastomeric material which is very little compressible, but sufficiently deformable so that the material driven back by the presence of a large diameter wire can move towards the chambers by transmitting the forces: in practice this will generally lead to give the elastomer a hardness less than 50 Shore.
- the connector shown in Figure 1 has a conventional general constitution. It is intended to be coupled to a complementary connector, which may have a grommet of the same constitution.
- the connector 10 comprises a body 12 of hard electrical insulating material, pierced with passages 14 for receiving contacts 16 each provided with an insulated connecting wire 18.
- the insulating body 12 of the connector has ten passages 14 arranged in staggered rows, this number not being limiting.
- the contacts shown are of the pin type and each retained against a shoulder of the insulating body by elastic fingers belonging to a ring 20 immobilized in the body. However, the contacts could as well be of the female type and / or immobilized by other means.
- the insulating body 12 is contained in a housing 22 provided with means, for example with screw or bayonet, for fixing to the housing of a complementary connector.
- the rear part of the housing contains a sealing thread 24 of flexible elastomeric material, pierced with individual passages each intended for a wire 18, distributed along the same network as the passages of the insulating body 12.
- the passages of the grommet 24 shown by way of example in FIGS. 2 to 4 have a rear part 26 having an inlet chamfer 28 of generally conical shape and a front part 30 of large diameter, greater than that of the larger wires. to be inserted, sufficient to accommodate the barrel, and possibly a flange, of the contact engaged in the corresponding passage 14 of the insulating body.
- the rear part 26 is intended to apply tightly to the wire and to guide it. It therefore has a diameter at rest less than that of the smallest wire intended to be inserted through the grommet 24. Its length from the rear face is generally between half and three-quarters of the length of the grommet. It can however be shorter to avoid capillarity phenomena.
- the grommet In the grommet are provided free volume or expansion chambers distributed around the passages. In order for the contact pressure of the elastomer on the wire contained in a passage to be approximately regular, it is desirable that these chambers be closed. It is not possible to manufacture such chambers directly by molding. Consequently, in the case of a connector whose the grommet 24 is tightly fixed, for example by gluing, on an insulating body, it suffices that the chambers are blind and open only on the front face. In the case of a round connector where the passages are arranged in a triangular network, the chambers 32 are arranged, in the central part of the grommet, at the center of each mesh of the network of passages. Each of the central passages is therefore surrounded by six chambers 32 arranged at 60 ° from one another around the axis of the passage. On the other hand, the side passages are only surrounded by four chambers.
- each chamber 32 constituting the expansion and free volume chambers, are intended to absorb the deformation generated by the passage of a wire in the rear part 26 of a passage. For this reason, each chamber 32 can have a rear zone of large diameter, having an axial extent a little smaller than that of the rear parts 26, and a front zone 34 of reduced diameter, just sufficient to allow passage to a molding spindle. .
- the elastomer constituting the grommet being very flexible, demolding can be carried out by elasticity.
- the small diameter of the front zone allows material to remain between it and the parts 30 which surround it.
- the chambers can have a constant cross section.
- additional holes 36 can be drilled in the front face of the grommet so as to constitute keying elements.
- An additional hole 38 (or more) can replace an expansion chamber 32.
- a round connector with ten contacts has been produced with a grommet of the kind described above, intended to constitute a sealed connection on wires having a diameter between 1.8 and 2.4 mm.
- the individual passages were distributed in a triangular network having a pitch of 3.3 mm and the diameter at rest of the rear parts was 0.83 mm.
- the free volume chambers were distributed in a hexagonal network with a pitch of 2.04 mm.
- the chambers of free volume, with a diameter of 1.30 mm opened out through a front zone of 0.6 mm in diameter.
Landscapes
- Connector Housings Or Holding Contact Members (AREA)
- Insulating Bodies (AREA)
Claims (8)
- Abgedichtete Drahtdurchführung für elektrische Steckverbinder, aus Elastomermaterial, mit mehreren einzelnen, zueinander parallelen und gemäß einem regelmäßigen zweidimensionalen Netz verteilten Durchgängen, die einen hinteren Dichtungsbereich (26) mit geringem Durchmesser aufweisen, der einen Teil der Länge der Durchgänge ausmacht, sowie mit Sackkammern mit einem Freiraum (32), die vorgesehen sind, um das aus den Durchgängen verdrängte Elastomer aufzunehmen, wenn letztere einen Draht enthalten, und die lediglich mit der Vorderseite der Drahtdurchführung verbunden sind, wobei jeder hintere Dichtungsbereich von mehreren Sackkammern umgeben ist.
- Abgedichtete Drahtdurchführung für elektrische Steckverbinder, aus Elastomermaterial, mit mehreren einzelnen, zueinander parallelen und gemäß einem regelmäßigen zweidimensionalen Netz verteilten Durchgängen, die einen Dichtungsbereich (26) von geringem Durchmesser aufweisen, sowie mit Sackkammern mit einem Freiraum (32), die vorgesehen sind, um das aus den Durchgängen verdrängte Elastomer aufzunehmen, wenn letztere einen Draht enthalten,
dadurch gekennzeichnet, daß
die Sackkammern in der Mitte einer jeden Masche des Netzes von Duchgängen angeordnet sind. - Drahtdurchführung nach Anspruch 2, dadurch gekennzeichnet, daß die Kammern mit dem Freiraum (32) lediglich mit der Vorderseite der Drahtdurchführung verbunden sind.
- Drahtdurchführung nach Anspruch 3, dadurch gekennzeichnet, daß ihre Vorderseite mit einem Isolatorkörper (12) verbunden ist, durch den Durchgänge zur Aufnahme von Kontakten verlaufen und der die Kammern verschließt.
- Drahtdurchführung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die einzelnen Durchgänge einen vorderen Bereich (30) mit größerem Durchmesser als der hintere Bereich haben, und daß die Sackkammern einen hinteren Abschnitt mit großem Durchmesser (30) in Höhe der Dichtungsbereiche (26) der einzelnen Durchgänge aufweisen.
- Drahtdurchführung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Dichtungsbereich (26) sich von der Rückseite der Drahtdurchführung ausgehend über eine Länge von zwischen der Hälfte und Dreivierteln der Länge der Drahtdurchführung erstreckt.
- Drahtdurchführung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Kammern mit dem Freiraum einen konstanten Querschnitt aufweisen.
- Steckverbinder mit einem Isolatorkörper (12), der Aufnahmedurchgänge (14) für Kontakte aufweist, die jeweils mit einem Anschlußdraht und einer dahinterliegenden Drahtdurchführung aus Elastomermaterial nach einem der vorhergehenden Ansprüche versehen sind.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9207584 | 1992-06-22 | ||
FR9207584A FR2692728A1 (fr) | 1992-06-22 | 1992-06-22 | Passe-fils d'étanchéité et connecteurs électriques comportant un tel passe-fils. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0576324A1 EP0576324A1 (de) | 1993-12-29 |
EP0576324B1 true EP0576324B1 (de) | 1996-01-03 |
Family
ID=9431011
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93401497A Expired - Lifetime EP0576324B1 (de) | 1992-06-22 | 1993-06-11 | Abgedichtete Drahtdurchführung und elektrischer Steckverbinder mit einer solchen Drahtdurchführung |
Country Status (4)
Country | Link |
---|---|
US (1) | US6000966A (de) |
EP (1) | EP0576324B1 (de) |
DE (1) | DE69301199T2 (de) |
FR (1) | FR2692728A1 (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11195448A (ja) * | 1997-12-26 | 1999-07-21 | Amp Japan Ltd | 防水型電気コネクタ |
FR2792120B1 (fr) * | 1999-04-08 | 2001-05-25 | Framatome Connectors Int | Joint d'etancheite a passages multiples pour un connecteur electrique de faisceaux de cables |
JP3755644B2 (ja) * | 2000-11-01 | 2006-03-15 | 住友電装株式会社 | コネクタ |
DE10216731B3 (de) * | 2002-04-16 | 2004-01-08 | Hydac Electronic Gmbh | Elektromagnetische Schaltvorrichtung |
FR2843491B1 (fr) * | 2002-08-09 | 2006-09-08 | Amphenol Air Lb | Connecteur pour des conducteurs electriques comportant un embout de contact et de verrouillage a leur extremite a connecter |
FR2886475B1 (fr) * | 2005-05-27 | 2011-10-28 | Amphenol Air Lb | Connecteur blinde pour conducteurs electriques. |
CA2650823C (en) * | 2006-05-08 | 2016-02-23 | Multi-Holding Ag | Plug-type connection |
DE102012203896A1 (de) * | 2012-03-13 | 2013-09-19 | Robert Bosch Gmbh | Mattendichtung für Steckverbinder |
MX2019008912A (es) | 2017-02-01 | 2019-09-26 | Horton Inc | Conjunto de conexion de bobina electromagnetica y procedimiento asociado. |
BE1025310B1 (de) * | 2017-06-12 | 2019-01-24 | Phoenix Contact Gmbh & Co. Kg | Steckverbinderteil mit verstemmten Kontaktelementen |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB965353A (en) * | 1962-12-13 | 1964-07-29 | Amphenol Borg Electronics Corp | Electrical connectors |
US3260983A (en) * | 1963-01-14 | 1966-07-12 | Elastic Stop Nut Corp | Waterproof electrical junctions |
US3477061A (en) * | 1966-06-20 | 1969-11-04 | Bunker Ramo | Contact retention device |
US3638165A (en) * | 1970-06-29 | 1972-01-25 | Itt | Electrical connector contact retention assembly |
CA1052881A (en) * | 1974-10-02 | 1979-04-17 | Bendix Corporation (The) | Moisture sealing grommet for an electrical connector |
US4406507A (en) * | 1981-06-30 | 1983-09-27 | The Bendix Corporation | Electrical connector insert |
US4386816A (en) * | 1981-06-30 | 1983-06-07 | The Bendix Corporation | Electrical connector insert assembly |
US4544220A (en) * | 1983-12-28 | 1985-10-01 | Amp Incorporated | Connector having means for positively seating contacts |
DE3566853D1 (en) * | 1984-06-29 | 1989-01-19 | Amp Inc | Retention article for electrical contacts |
US4648672A (en) * | 1985-05-17 | 1987-03-10 | Amp Incorporated | Wire seal |
DE3775860D1 (de) * | 1986-02-25 | 1992-02-20 | Thomas & Betts Corp | Gehaeuseeinrichtung fuer einen wasserdichten steckverbinder. |
US4758182A (en) * | 1986-10-16 | 1988-07-19 | Shinagawa Jidosha Densen Co. Ltd. | Electric connector |
FR2626720A1 (fr) * | 1988-02-01 | 1989-08-04 | Souriau & Cie | Connecteur electrique a plusieurs elements de contact |
JPH0343972A (ja) * | 1989-07-10 | 1991-02-25 | Amp Japan Ltd | 電気コネクタ用防水体 |
DE9014856U1 (de) * | 1990-10-26 | 1991-01-10 | Contact GmbH Elektrische Bauelemente, 70565 Stuttgart | Isolierkörper für elektrische Kontakte |
-
1992
- 1992-06-22 FR FR9207584A patent/FR2692728A1/fr active Granted
-
1993
- 1993-06-11 EP EP93401497A patent/EP0576324B1/de not_active Expired - Lifetime
- 1993-06-11 DE DE69301199T patent/DE69301199T2/de not_active Expired - Fee Related
- 1993-06-21 US US08/079,279 patent/US6000966A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US6000966A (en) | 1999-12-14 |
DE69301199T2 (de) | 1996-05-23 |
FR2692728A1 (fr) | 1993-12-24 |
FR2692728B1 (de) | 1997-02-28 |
DE69301199D1 (de) | 1996-02-15 |
EP0576324A1 (de) | 1993-12-29 |
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