EP0738431A1 - Elektrische steckverbindung - Google Patents
Elektrische steckverbindungInfo
- Publication number
- EP0738431A1 EP0738431A1 EP95935815A EP95935815A EP0738431A1 EP 0738431 A1 EP0738431 A1 EP 0738431A1 EP 95935815 A EP95935815 A EP 95935815A EP 95935815 A EP95935815 A EP 95935815A EP 0738431 A1 EP0738431 A1 EP 0738431A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing part
- ring
- housing
- electrical connector
- sealing body
- 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
- 238000003780 insertion Methods 0.000 claims abstract description 39
- 230000037431 insertion Effects 0.000 claims abstract description 39
- 238000007789 sealing Methods 0.000 claims description 64
- 241000446313 Lamella Species 0.000 claims description 15
- 230000000295 complement effect Effects 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 230000006835 compression Effects 0.000 abstract description 5
- 238000007906 compression Methods 0.000 abstract description 5
- 230000013011 mating Effects 0.000 abstract 1
- 238000006073 displacement reaction Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000000418 atomic force spectrum Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000005405 multipole Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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
- H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
- H01R13/42—Securing in a demountable manner
- H01R13/436—Securing a plurality of contact members by one locking piece or operation
- H01R13/4364—Insertion of locking piece from the front
-
- 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
- H01R13/5219—Sealing means between coupling parts, e.g. interfacial seal
- H01R13/5221—Sealing means between coupling parts, e.g. interfacial seal having cable sealing means
Definitions
- the invention is based on an electrical plug connection according to the preamble of claim 1.
- Such a connector is known from DE 35 40 831 C2.
- the connector described therein consists of a first and a second housing part.
- a hollow cylindrical sealing body which is arranged on a cylindrical part body in one of the two housing parts, has lips of different diameters in an alternating order.
- the larger lips overlap the socket-shaped insertion section of one of the housing parts.
- these sealing lips are deflected in the form of an arc in the axial direction when the plug connection is coupled.
- the small lips limit the space available for the bent sealing lips and have no sealing function. After reaching their end position, the housing parts are locked.
- the sealing body also has sealing lips of different diameters. Both the continuous conical design of the insertion area of the first housing part and the corresponding arrangement of the sealing lips bring about a strong compression of all sealing lips between the housing parts when the plug connection is brought together.
- the sealing principle of the compression seal used there is very forceful, so that a correspondingly high force component is reflected in the insertion force. In this aspect of the optimization of the effort, the type of sealing is unsatisfactory.
- a hollow cylindrical sealing body with three radial sealing lips is on a cylindrical partial body of a housing part attached.
- the outer diameter of the three sealing lips is larger than the inner diameter of a sleeve-shaped housing part, so that the lips of the sealing body are deflected in an arc in the axial direction when the housing parts are pushed together.
- a sealing body to create a gas-tight connection between a high-voltage cable and a housing part. After equipping the cable end with the sealing body, it is inserted into the housing part and secured at the back with a metal sleeve.
- a cable receptacle opening in the housing part runs conically in order to enable easy insertion into one another with the beveled sealing body.
- Three sealing lips arranged on the outside of the sealing body are designed with a decreasing diameter in accordance with the bevel.
- the metal sleeve causes the sealing lips to be compressed in the insertion opening and thus ensure tightness.
- FIG. 4417736 Another waterproof connector is known from US 4417736.
- a cylindrical housing part is arranged in a bush-shaped housing part with the interposition of a seal.
- the seal surrounds the cylinder and, like the cylinder itself, is chamfered in the direction of insertion.
- the receptacle of the socket-shaped housing part has a shape that is complementary to this.
- the sealing body is formed on the inside and outside with compressible lips which ensure an adequate seal and at the same time reduce centering problems.
- the connectors mentioned show the basic principles for sealing housing parts by means of a sealing body formed with lips.
- a deflection of the sealing lip in the axial direction is understood as a lamellar seal, while a pinch of the sealing lip in the radial direction is known as a compression seal.
- the invention is therefore based on the object to design a connector according to the preamble of claim 1 so that it is liquid-tight and the housing parts can be inserted into one another and pulled apart with little effort.
- the insertion force is composed of several components.
- the system can only be closed with extreme effort.
- the special design of the sealing body and the insertion section contributes to the reduction in force.
- the Housing parts are protected from liquid ingress by two ring fins of different diameters.
- the small number of lamellas and the combination of a lamellar seal and a compression seal enable low-friction sealing.
- a good pressure equalization is ensured by the short way in which the ring fins come into contact with the housing wall, so that only slight forces have to be expended in this regard. This measure also has a positive effect when the connector is disconnected.
- the housing parts can be easily separated from each other since the pressure difference is extremely low.
- the insertion force is significantly reduced according to the invention in that the design of the housing parts is chosen so that the force components do not add up but occur one after the other and as a result an almost constant force is applied over the entire displacement path at a low level.
- the contact parts are inserted into one another and the housing lock is moved into position. After overcoming the insertion forces, a constant but lower contacting force is necessary for the further displacement of the contact parts.
- the maximum force to be applied is generated for the housing locking.
- the final latching takes place virtually automatically on the basis of the preload, so that the frictional forces which then only occur for the sealing do not increase the entire force level.
- the relaxation of the latching means and the sealing process taking place at the same time compensate each other in terms of the effort required.
- the locking means in principle each consist of a beveled projection on both sides, which with a z. B. interacts on an arm of the other housing part arranged opening.
- the relaxation takes place after exceeding the maximum deflection of the arm, which is then carried out by advancing the first housing part slides into the second housing part along the inclined slope.
- the sealing takes place only on this short part of the displacement path.
- the material for the sealing body in particular for the ring fins, must have good sealing properties and good sliding properties. Silicone fulfills these conflicting requirements best.
- the sealing body In order to facilitate the handling of the sealing body during assembly, it is designed with three ring fins. Only two ring blades are required for the sealing function, but it must be ensured that the ring blade with the smaller diameter faces the bushing area of the second housing part. Since the difference in diameter with the small overall dimension of the sealing body is difficult to see by the human eye, a third ring lamella was additionally arranged in order to avoid incorrect insertion. A symmetrical structure is created so that the sealing body can be inserted uncoded.
- the difference between the lamella diameters is advantageously in the range around 1 mm and is dependent on the angular position of the insertion section.
- This insertion section is kept as short as possible with respect to the assembly path, so that the force components for the sealing placement are only effective over a short distance of insertion.
- this component can be optimally integrated into the force curve in order to maintain an overall low force level.
- it is particularly advantageous to graduate the insertion section.
- Each slat has its own special area of action and therefore only causes the absolutely necessary effort.
- Figure 1 shows the connector in a longitudinal section.
- Figure 2 shows the housing parts in a longitudinal section during the first contact of the sealing body with the second housing part.
- FIG. 3 shows an enlarged partial section according to FIG. 2.
- Figure 4 shows the housing parts in a longitudinal section in their locked end position.
- FIG. 5 shows an enlarged partial section according to FIG. 4.
- Figure 6 is a diagram of the course of the insertion force of a conventional connector.
- Figure 7 is a diagram of the course of the insertion force of a connector according to the invention.
- Figures 1, 2 and 4 represent a connector 1 on a scale of 2.5: 1, while in Figures 3 and 5 a scale of 5: 1 is realized.
- the electrical connector 1 consists of a first housing part 2 and a second housing part 3.
- a contact part 4 is arranged in the first housing part 2, the tip 5 of which projects into a socket region 6.
- This socket area 6 serves to receive the second housing part 3 and is designed for this purpose with a specially designed insertion section 7.
- the second housing part 3 consists of a cylinder part 8, in which a contact part 9 is arranged, and a housing jacket 10 surrounding the cylinder part 8.
- a hollow cylindrical sealing body 11 is pushed and fastened onto the cylinder part 8, the outside with three ring fins 12, 13 and 14 is formed, the central ring lamella 13 having a larger diameter D1 than the two outer ring lamellae 12 and 14 of the same size with the diameter D2.
- the third ring lamella 14, which is also of small diameter D2 is used exclusively to create a symmetrical lamella structure in order to enable side-neutral assembly.
- An opening 15 in the housing jacket 10 and an opening 16 in a deflectable arm 17 work together when the two housing parts 2 and 3 are inserted into one another with projections 18 and 19 which are bevelled on both sides on a housing wall 20 of the first housing part 2.
- the second housing part 3 is inserted into the first housing part 2 to such an extent that the cylinder part 8 protrudes into the bushing area 6 and the housing jacket 10 or the arm 17 abut the projections 18 and 19.
- the contact parts 4 and 9 are not yet touching.
- the previous force to be used serves exclusively to overcome the sliding friction between the housing jacket 10 or the arm 17 and the housing wall 20.
- the second housing part 3 is pushed further into the first housing part 2.
- the tip 5 of the contact part 4 has already been inserted into the contact part 9 and has thus completed the forceful insertion movement. If the assembly process of the contact parts 4 and 9 is continued, only slight frictional forces have to be overcome.
- the housing jacket 10 and the arm 17 were maximally deflected by the bevelled projections 18 and 19. Looking at this movement process from a purely force point of view, two increasing force components add up, from which the contacting force of the contact parts 4 and 9 drops and remains at a uniform level, while the locking force has increased significantly.
- the sealing body 11 has for the first time a point of contact with the first housing part 2, but is not yet included in the balance of forces.
- Figures 4 and 5 show the two housing parts 2 and 3 in their end position, i. H. the plug connection is completely made.
- the projections 18 and 19 lie in the openings 15 and 16 and lock the housing parts 2 and 3.
- the contact part 4 is completely inserted into the contact part 9.
- the sealing body 11 is located between the cylinder part 8 and the housing wall 20 and prevents the liquid from entering between the housing parts 2 and 3. Compared to FIG the bevelled projections 18 and 19 come to rest almost automatically by the restoring forces. When the restoring forces become free, the ring lamellae 12 and 13 of the sealing body 11 come into contact for the first time with the circumferential insertion section 7 in the socket area 6 of the first housing part 2.
- the insertion section 7 is graduated. There is a bevel 22 between two stages 21 and 23.
- the first stage 21 enables the sealing body 11 and thus the second housing part 3 to be advanced slightly, since the diameter D3 of the first stage 21 is equal to the diameter D1 of the central ring lamella 13, while the front annular lamella 12 pushes against the slope 22 and is slightly deformed.
- the middle ring lamella 13 slides along the first step 21 into the bevel 22 and is deflected in an arc shape opposite to the direction of insertion.
- the front ring lamella 12 passes from the bevels 22 to the second step 23.
- the diameter D4 of the step 23 is smaller than the diameter D2 of the ring plate 12.
- the ring plate 12 is consequently strongly compressed there.
- FIGS. 6 and 7 show the difference between the force components of a conventional plug connection with a lamellar seal and a plug connection 1 according to the invention. Comparable force components are identified with the same letters, however, the force components of the conventional connector are additionally provided with an apostrophe. The course of the
- the latching force C of the connector 1 occurs slightly before the contacting force A ( Figure 7).
- the resulting insertion force D is formed only from the latching force C and the contacting force A.
- the sealing force B only occurs when the elastic locking means relax.
- the sealing force B is overcompensated by the released locking force C, so that the insertion force D decreases while the contacting force A remains the same.
- the distribution of the force-causing devices the complete displacement path S of the connector 1 has the result that a liquid-tight connection is created with minimal effort. This advantage has an effect in particular in the case of multi-pole plug connections, since there the insertion forces increase with an increasing number of poles.
Landscapes
- Connector Housings Or Holding Contact Members (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4439684 | 1994-11-07 | ||
DE4439684A DE4439684C1 (de) | 1994-11-07 | 1994-11-07 | Elektrische Steckverbindung |
PCT/DE1995/001498 WO1996014675A1 (de) | 1994-11-07 | 1995-10-28 | Elektrische steckverbindung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0738431A1 true EP0738431A1 (de) | 1996-10-23 |
EP0738431B1 EP0738431B1 (de) | 2002-02-20 |
Family
ID=6532654
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95935815A Expired - Lifetime EP0738431B1 (de) | 1994-11-07 | 1995-10-28 | Elektrische steckverbindung |
Country Status (5)
Country | Link |
---|---|
US (1) | US5906499A (de) |
EP (1) | EP0738431B1 (de) |
DE (2) | DE4439684C1 (de) |
ES (1) | ES2169160T3 (de) |
WO (1) | WO1996014675A1 (de) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3296298B2 (ja) * | 1998-07-23 | 2002-06-24 | 住友電装株式会社 | 防水コネクタ |
JP3535034B2 (ja) * | 1999-03-29 | 2004-06-07 | 矢崎総業株式会社 | 防水コネクタ |
US6244886B1 (en) * | 2000-01-24 | 2001-06-12 | Delphi Technologies, Inc. | Electrical connection system having force distribution seal |
DE10048062A1 (de) * | 2000-09-28 | 2002-04-11 | Bosch Gmbh Robert | Dichtelement für eine elektrische Steckvorrichtung |
DE10048063A1 (de) * | 2000-09-28 | 2002-04-18 | Bosch Gmbh Robert | Dichtelement für eine elektrische Steckvorrichtung |
JP3687548B2 (ja) * | 2001-02-16 | 2005-08-24 | 住友電装株式会社 | 可撓性平型ケーブル用防水コネクタ |
JP3667652B2 (ja) * | 2001-04-11 | 2005-07-06 | 住友電装株式会社 | コネクタ |
US20050282170A1 (en) | 2003-02-07 | 2005-12-22 | Diagnocure Inc. | Method to detect prostate cancer in a sample |
ITPD20030037U1 (it) * | 2003-05-13 | 2004-11-14 | Com El Srl Elet Plast | Connessione elettrica presa + spina a norme. |
DE102005031424B4 (de) * | 2005-07-04 | 2007-04-12 | FRÖTEK Kunststofftechnik GmbH | Batterie-Ladesystem |
DE102005056022A1 (de) * | 2005-11-24 | 2007-06-06 | Vossloh-Schwabe Deutschland Gmbh | Abgedichtete Lampenfassung |
EP2228875B1 (de) * | 2009-03-11 | 2012-01-18 | Delphi Technologies, Inc. | Steckverbindergehäuse |
JP6488978B2 (ja) * | 2015-10-08 | 2019-03-27 | 住友電装株式会社 | 防水コネクタ |
EP3168942B1 (de) * | 2015-11-13 | 2024-05-08 | Hirschmann Automotive GmbH | Zweistufiger steckvorgang bei steckverbindern |
US10734755B2 (en) * | 2018-09-24 | 2020-08-04 | Te Connectivity Corporation | Electrical connector and connector assembly having a seal gland |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3550065A (en) * | 1968-01-11 | 1970-12-22 | G & H Technology | Electrical connector |
JPS5427546B2 (de) * | 1974-12-09 | 1979-09-11 | ||
US3937545A (en) * | 1974-12-23 | 1976-02-10 | Ford Motor Company | Waterproof electrical connector |
IT1087535B (it) * | 1976-10-12 | 1985-06-04 | Amp Inc | Connettore elettrico e relativa custodia |
US4417736A (en) * | 1978-01-16 | 1983-11-29 | Amp Incorporated | High voltage rack and panel connector |
US4639061A (en) * | 1984-11-19 | 1987-01-27 | Itt Corporation | Environmentally sealed connector |
US4637674A (en) * | 1985-05-17 | 1987-01-20 | Amp Incorporated | Annular connector seal |
US4946402A (en) * | 1989-10-19 | 1990-08-07 | General Motors Corporation | Electrical connector with improved sealing arrangement |
JPH05152027A (ja) * | 1991-11-29 | 1993-06-18 | Yazaki Corp | 防水コネクタ |
-
1994
- 1994-11-07 DE DE4439684A patent/DE4439684C1/de not_active Expired - Fee Related
-
1995
- 1995-10-28 DE DE59510065T patent/DE59510065D1/de not_active Expired - Lifetime
- 1995-10-28 WO PCT/DE1995/001498 patent/WO1996014675A1/de active IP Right Grant
- 1995-10-28 ES ES95935815T patent/ES2169160T3/es not_active Expired - Lifetime
- 1995-10-28 EP EP95935815A patent/EP0738431B1/de not_active Expired - Lifetime
- 1995-10-28 US US08/669,404 patent/US5906499A/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO9614675A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE59510065D1 (de) | 2002-03-28 |
DE4439684C1 (de) | 1996-05-09 |
EP0738431B1 (de) | 2002-02-20 |
WO1996014675A1 (de) | 1996-05-17 |
ES2169160T3 (es) | 2002-07-01 |
US5906499A (en) | 1999-05-25 |
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