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
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
  • H02G15/00—Cable fittings
  • H02G15/013—Sealing means for cable inlets
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
  • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
  • H01R43/005—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for making dustproof, splashproof, drip-proof, waterproof, or flameproof connection, coupling, or casing
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
  • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
  • H02G3/02—Details
  • H02G3/08—Distribution boxes; Connection or junction boxes
  • H02G3/088—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings or inlets

Definitions

• the invention relates to a sealing unit preferably for a connector having at least one conductor, in particular an electrical connector with at least one electrical conductor preferably for the motor vehicle industry. Furthermore, the invention relates to a sealing arrangement, a connector, in particular an electrical connector, preferably an electrical charging socket for the motor vehicle industry, and a device, a unit, a module, an appliance, an apparatus, an assembly, a mechanism, a system, etc.
• connectors which serve to transmit electrical currents, voltages, signals and/or data using a large
• Such a connector and possibly its housing which is associated with it (e.g. in the case of a connector device) or arranged over it (e.g. in the case of a connector unit) can be fitted on an electrical cable, a conductor, a cable harness, etc. (ready-made electrical cable assembly), or to/in an
• electrical unit or device such as e.g. to/in a housing, to/on a pressed frame, to/on a printed circuit board etc., a (power) electrical, electro-optical or electronic component or a corresponding assembly, etc. If a connector
• a cable, a conductor or a cable harness this is also known as a (flying) (plug-in) connector or a plug or a coupling; if it is located on/in an electrical, electro-optical or electronic component,
• a (mating) connector unit such as e.g. a (built-in) connector, a (built- in) plug or a (built-in) bushing.
• a connector on such a unit is often also identified as a (plug) receptacle or header.
• connectors corresponding and partly complementary to each other (connectors and mating
• an electrical connecting unit e.g. for a connector, e.g. having or comprising an actual contact device (usually configured integrally, e.g. a contact element, a terminal, etc.) or a contact unit (usually configured in multiple parts, in two parts, in one piece, materially in one piece or integrally, for example a crimp contact unit in one part or in multiple parts) , must be received securely
• such a connecting device can be provided as a connector (cf. above), therefore without a housing, e.g.
• WO 2009/005472 A1 discloses a cable-mounting arrangement for attaching one or a multiplicity of electrical cables in and to a unit, the cable-mounting arrangement itself being fastenable to the unit via a sealing ring in a water-tight manner.
• the cable-mounting arrangement has three retaining means, which are provided for fastening and subsequently sealing-off the cable (s) and optionally one or a plurality of blind plugs.
• two grooves which are associated with one another and which, in the mounted state of the cable-mounting arrangement, form a feed-through channel for the cable, are installed for a respective cable in one of two related retaining means covers and in one side, facing this retaining means cover, of a middle retaining means mountable between the retaining means covers.
• In the circumferential direction of the retaining means there are installed, radially inwards in the retaining means covers and radially outwards in the middle retaining means, mutually associated grooves, which, when the cable-mounting arrangement is in the mounted state, form a seal channel for the cable-mounting arrangement itself, into which seal channel it is possible to introduce a liquid sealing material.
• a problem of the invention is to specify an alternative or appropriately improved
• the connector in particular an electrical connector having at least one electrical conductor preferably for the motor vehicle industry.
• the connector should pass a spray-water (IP X4) or water-jet (IP X5) test, if necessary be of small construction, of simple design and/or easy to handle, with its manufacture and also its subsequent mounting also being intended to be inexpensive.
• a sealing unit preferably for a connector with precisely or at least one conductor, in particular an electrical connector with precisely or at least one electrical conductor preferably for the motor vehicle industry; by means of a sealing arrangement preferably for a connector with a plurality of conductors, in particular an electrical connector with a plurality of electrical
• electrical connector preferably an electrical charging socket for the motor vehicle industry; and by means of a device, a unit, a module, an appliance, an apparatus, an assembly, a mechanism or a system.
• the sealing unit comprises an installing section, e.g. of the connector or a housing thereof, and an elastic conductor seal, mountable at/in the installing section, for precisely or at least one conductor, for sealing off the installing section with regard to the conductor, wherein a compressive force can be introduced into the conductor seal by means of the installing section, whereby an elastomechanical sealing force may be exerted from the conductor seal onto the conductor in a distributed manner in the circumferential direction.
• the related conductor e.g. a single, or one of two or a multiplicity of conductors, can be configured in this case as an electrical conductor, an optical conductor, a fluid conductor, etc.
• the conductor seal is installed in this case to seal the conductor with regard to particles, a fluid (liquid and/or gas), etc. Furthermore, the conductor seal can be configured for further sealing purposes (cf . annular sealing section) . According to the invention, the conductor seal can be
• the sealing force in this case originates from an elastic deformation of the conductor seal itself due to the installing section.
• the conductor seal mountable at/in the installing section can be installed at least in sections at/in the installing section.
• the elastomechanical sealing force can be referred to as a compressive force distributed in the circumferential
• an elastomechanical sealing force from the conductor seal onto the conductor originates substantially or mainly not exclusively from the conductor seal itself.
• a significant contribution of the averaged elastomechanical sealing force from the conductor seal onto the conductor e.g.: approx. 30%, approx. 40%, approx. 50%, approx. 60%, approx. 70%, approx. 80%, approx. 90% or approx. 100% - originates from the installing section, which acts mechanically onto the conductor seal (compressive force) .
• a certain amount of force from the installing section acts preferably radially into the conductor seal, which for its part applies the significant contribution (see above) obtained therefrom onto the conductor seal in a distributed manner in the circumferential direction
• elastomechanical sealing force (elastomechanical sealing force) .
• a distribution of the elastomechanical sealing force onto the conductor in the circumferential direction is in this case not necessarily constant, which means that a sealing force gradient can be installed onto the conductor with regard to a complete circumference around the conductor.
• a similar situation may arise for a sealing length. This depends on the present, e.g. geometric, conditions.
• the compressive force (cf. Fig. 6, arrow) itself which is introduced into the conductor seal by means of the installing section, can be a compressive force
• the resulting elastomechanical sealing force of the conductor seal can then likewise be exerted onto, and introduced into, the precisely or at least one conductor in a distributed manner in the circumferential direction (cf. Fig. 6 once again, arrows), with the forces being cancelled out inside the conductor, which naturally also applies to the situation above.
• the sealing unit can be configured such that an interference fit can be installed, at least partly or in sections, between the installing section and the conductor seal.
• an interference fit can be installed, at least partly or in sections, between the installing section and the conductor seal.
• a press-fit can be installed, at least partly or in sections, between the installing section and the conductor seal.
• the interference fit can be installed over part of the
• installing section and the conductor seal can possess a corresponding mutual geometrical design. Furthermore, it can be possible to generate the elastomechanical sealing force by means of a geometrically similar design, at least in
• At least one profile section of the installing section can possess a longer or shorter profile dimension than a respective profile section of a relaxed conductor seal.
• at least one inner profile section of the installing section can possess smaller dimensions than a respective outer profile section of a relaxed conductor seal.
• the installing section and the conductor seal are mutually designed at least in sections such that, during and chronologically after the mounting of the installing section to/on the conductor seal or vice versa, a mechanical force from the installing section can, from outside the conductor seal, be applied onto or introduced into the conductor seal (compressive force) and can be shifted through this.
• the mechanical force is present via a material of the conductor seal as a compressive force within the conductor seal, which presses the conductor seal from the exterior onto the respective conductor as an elastomechanical sealing force from the conductor seal, said elastomechanical sealing force being distributed in the peripheral direction.
• sections of the conductor seal and of the installing section can be designed to be mainly complementary in sections.
• the installing section can have a seal receptacle, at/in which the conductor seal can be at least partly mounted, wherein when the conductor seal is being mounted at/in the seal receptacle, the compressive force of the installing section can be introduced successively into the conductor seal.
• the compressive force from the installing section can be introduced into the conductor seal as the elastomechanical sealing force.
• the generation of the compressive force takes place, for example, by the seal receptacle being undersized compared to the conductor seal, at least in sections. It is preferred here that both the compressive force and the elastomechanical sealing force increase successively.
• the installing section can have two flanks, in particular two inner flanks, and on the other hand the conductor seal can have two flanks, in
• An intermediate angle installable between flanks which relate to one another, chronologically directly before the mutual mounting of the installing section with the conductor seal is preferably: approx. 2.5-5°, approx. 5-7.5°, approx. 7.5-10°, approx. 10-12.5°, approx. 12.5-15°, approx. 15-17.5°, approx. 17.5-20°, approx. 20- 22.5°, approx. 22.5-25°, approx. 25-27.5° or approx. 27.5- 30° .
• the installing section can have a seal recess or the seal receptacle can be configured as a seal recess.
• the seal recess can have two mutually opposing inner flanks, the imaginary extensions of which form an acute recess angle to one another.
• the seal recess (apart from rounded corner regions) in this case takes the shape of an isosceles trapezium, the longer base side (base) of which coincides with the opening of the installing section for the seal recess.
• the shorter base side of the trapezium inside the installing section is only slightly shorter than the base, which means that the trapezium approximates the shape of a rectangle or square.
• the conductor seal can have two mutually opposing outer flanks, the imaginary extensions of which form an acute seal angle to one another.
• the comments made above regarding the trapezoidal seal recess applies analogously to the conductor seal, wherein the conductor seal furthermore can be attached in another manner or has a further unit (cf. annular sealing section) .
• the seal angle of the mutually opposing outer flanks of the conductor seal can be larger than the recess angle of the mutually opposing inner flanks of the installing section.
• the conductor seal can have two seal parts, wherein the conductor can be received in a sealed-off manner between the two seal parts.
• the conductor seal can, of course, comprise more than two seal parts.
• a premounting position a first seal part of the two seal parts can be premounted at/in the installing section. Furthermore, in the premounting position, the first seal part can be (pre) locked at/in the installing section. Furthermore, in a final
• the first seal part can be finally mounted at/in the installing section, wherein the first seal part has moved further compared to its premounting position at/in the installing section.
• the first seal part can be (finally) locked, i.e. a second time, at/in the installing section.
• the conductor seal possesses e.g. in such an embodiment preferably two seal parts, e.g. an upper and e.g. a lower seal part (cf. Figs. 1, 13) .
• two seal parts e.g. an upper and e.g. a lower seal part (cf. Figs. 1, 13) .
• the lower seal part sits, for example, on a lower region of the conductor (cf. Fig. 2) and can be (finally) mounted in a lower housing part (floor), for example (cf.
• the upper seal part in a premounting position, for example, is received in an upper housing part (installing section) (cf . Fig. 1 with 2, 13) .
• an upper housing part installing section
• the upper seal part moves towards the conductor (cf. Fig. 1) and comes to sit on this (cf . Fig. 1 after 2) .
• the upper seal part is preferably still located in its premounting position in the upper housing part.
• the sealing unit can be configured such that, in the final mounting position, a compressive force can be introduced into the first seal part by means of the installing section.
• a compressive force can be introduced into the second seal part by means of the installing section.
• a sealing force can be transmittable onto the second seal part by means of the first seal part.
• the sealing force onto the second seal part is
• the floor and the installing section are preferably mechanically braced against one another.
• the conductor can cover a range of approx. 180°, approx. 225°, approx. 210°, approx. 315°, or approx. 360°.
• the conductor seal can have a second sealing function.
• the conductor seal, preferably the second seal part, further comprises an annular sealing section.
• the arrangement according to the invention has a plurality of sealing units, wherein the sealing units preferably each seal off precisely one conductor, and the sealing units are preferably installed in series in the sealing arrangement, and a single common second seal part is preferably installed for the conductors.
• the connector according to the invention has a sealing unit according to the invention or a sealing arrangement according to the invention.
• the connector here can have precisely or at least one conductor linked to/in the connector.
• the conductor can be configured as an electrical conductor, an optical conductor, a fluid conductor, etc.
• the connector can comprise a housing with a first housing part and a second housing part, wherein the installing section is installed with the first seal part in the first housing part, and the second seal part is installed in the second housing part.
• the housing or a respective housing part can have a corresponding receptacle.
• the first housing part and/or the second housing part can further have a receptacle for a further installation of the conductor seal (cf. annular sealing section) .
• the first housing part can have at least one locking unit and, correspondingly to this, the second housing part can have a locking unit complementary thereto at least in sections, wherein the housing is preferably configured such that, by means of the locking units, a mechanical force can be introduced into the installing section, which
• the connector does not require any additional protective cover (anti-spray protection) or such a function can be integrated simply at/in the housing of the connector.
• the device according to the invention, the unit according to the invention, the module according to the invention, the appliance according to the invention, the apparatus according to the invention, the assembly according to the invention, the mechanism according to the invention or the system according to the invention comprises a sealing unit according to the invention or a sealing arrangement according to the invention.
• the device or the unit can be, for example, a section or a part at/in a module, an appliance, an apparatus, an assembly, a mechanism, a system, etc.
• a device or a unit should also be understood to mean a ready-made electrical cable assembly.
• a feature (section, element, structural part, unit, component, function, size, etc.) can be designed to be positive, i.e. present, or negative, i.e. absent, with a negative feature not being explicitly explained as a feature if the fact that it is absent is not deemed to be significant according to the invention, i.e. if the invention consists in omitting this feature.
• a feature in an exemplary embodiment shows that the feature is optional with regard to the invention.
• a generic term for the feature can also be read alongside this, (optionally further hierarchical classification into subgenus, section, etc.), as a result of which it is possible to generalise a, or this, feature, e.g. taking into account identical effect and/or equivalence.
• FIG. 1 to 4 show, in each case in perspective views, the installation of a sealing unit according to the invention between a one-part installing section and a two-part conductor seal, according to one variant of the invention;
• FIGs. 5 and 6 illustrate, likewise in perspective views, a mutual geometric design of the installing section and of the conductor seal, and, in a conceptualised manner, a mechanical stress progression within the sealing unit, according to the variant of the invention;
• Figs. 7 to 9 show three alternative embodiments of the sealing unit, according to the variant of the invention;
• FIGs. 10 to 12 once again in perspective views, illustrate a design and a mechanical interaction of two seal parts (Figs. 10 and 11) of the two-part conductor seal with the installing section (only Fig. 12), according to an embodiment of the variant of the invention
• Figs. 13 and 14 likewise in perspective views and slightly modified, show the application of the sealing unit according to the invention from Figs. 10 to 12 to a charging socket preferably for the motor vehicle industry
• Figs. 15 and 16 again in perspective views, show an embodiment of the invention with two sealing units, in accordance with the variant of the invention.
• the invention is not restricted by the disclosed exemplary embodiments, but instead is of a more fundamental nature. Other variations can be derived from this and/or from the above (description of the invention) without departing from the scope of protection of the invention.
• the invention is thus applicable to other connectors in the motor vehicle industry or to an industry outside the motor vehicle
• the installing section 10 can be configured hereafter by a first housing part 410 and the floor 11 of the installing section 10, 11 can be configured as a second housing part 420.
• the conductor 50 can be configured as an electrical conductor 50 (stranded conductor, cable, cable harness, etc.), an optical conductor, a fluid conductor for a liquid and/or a gas, etc., for example.
• the conductor 50 is preferably an electrical conductor 50.
• the Figs, of the drawings each depict merely a single conductor 50. It is, however, possible to employ a plurality or multiplicity of conductors 50, which can be sealed off according to the invention, for each sealing unit 5. In this case it is also possible to employ different conductors 50, e.g. an electrical conductor 50 and a fluid conductor 50.
• the sealing unit 5 can be configured as a sealing unit 5 for a connector 2, a device 1, a unit 1, a module 0, an appliance 0, an apparatus 0, a mechanism 0, a system 0, etc.
• the connector 2 can be configured as an electrical, optical, electro-optical, fluidic (liquid and/or gas), etc. connector 2.
• a flying coupling, a coupling (charging socket), a (built-in) plug, a (built-in) bushing, a bushing receptacle and/or plug receptacle, a header, an interface, etc. is preferably used as an electrical connector 2.
• the sealing unit 5 comprises at least the one-part, two-part (cf. drawings) or multi-part installing section 10, (11), which can also be named a unit region 10, (11) and is, for example, a region, part or section of a first housing part 410.
• the unit region 10, 11 can include a floor 11, which is a region, part or section of a second housing part 420, for example.
• the sealing unit 5 further comprises the one-part (cf. Figs. 7 to 9), two-part (cf. Figs. 1 to 6 and 10-14) or multi-part conductor seal 20.
• Figs. 1 to 4 show an embodiment of the inventive sealing unit 5 of a connector 2, e.g. of a charging socket 2, and
• the at least two-part conductor seal 20 possesses a first, or upper, seal part 21 and a second, or lower, seal part 22. Furthermore, a housing (4) of the connector 2 is at least divided into two, and it
• housing part 410 installing section 10
• second, or lower, housing part 420 floor
• the first seal part 21 is associated with the first housing part 410 and the second seal part 22 is associated with the second housing part 420.
• the first housing part 410 has a seal receptacle 110 preferably designed as a seal recess 110.
• the second seal part 22 preferably has a corresponding seal shell, e.g. a 180° seal shell.
• the second seal part 22 is preferably fully mounted in the second housing part 420 (cf . Fig. 12, 13) .
• the conductor 50 sits on the seal part 22, preferably in the seal shell.
• the first seal part 21 is preferably situated in a premounting position V at/in the first housing part 410 (cf. in Fig. 1 the gap between the first seal part 21 and the first housing part 410) .
• the premounting position V distinguishes itself in that the first seal part 21, during mounting at/in the first housing part 410, can be moved in the direction of its final mounting position E or can be moved further into the first housing part 410 in the
• Fig. 2 which chronologically follows the first step I, the two housing parts 410, 420 are moved towards one another, with merely the first housing part 410 having been moved towards the second housing part 420 in the depiction of Fig. 2.
• this can also be carried out in a different manner.
• the first seal part 21 moves towards the conductor 50 and sits, preferably analogously to the second seal part 21 (seal shell, 180° seal shell), on this conductor (placement of the conductor 50 at/in the conductor seal 20; 21, 22) .
• the upper seal part 21 is preferably still in its premounting position V at/in the upper housing part 410.
• the sealing unit 5 is installed through a continued moving of the first housing part 410 and the second housing part 420 towards one another up to an end position of the two housing parts 410, 420.
• the first seal part 21 is shifted into its final mounting position E at/in the first housing part 410, wherein the first seal part 21 is received further and further at/in the seal receptacle 110 or at/in the seal recess 110.
• this takes place e.g. by means of a corresponding design of the conductor seal 20 or of the first seal part 21 and where appropriate also of the second seal part 22, and a corresponding design of the seal receptacle 110 or of the seal recess 110.
• an outer profile of the conductor seal 20 or of the first seal part 21 and optionally also of the second seal part 22, and an inner profile of the seal receptacle 110 or of the seal recess 110 are preferably geometrically matched to one another, e.g. by means of a mutual oversize, such that the elastomechanical sealing force can be generated on account of a compression of the conductor seal 20 or of the first seal part 21 and optionally also of the second seal part 22.
• the first seal part 21 can be locked at/in the first housing part 410.
• it is prelocked in the premounting position V at/in the first housing part 410, and is moved when the sealing unit 5 is installed into its final catching position at/in the first housing part 410.
• the sealing force originates from an elastic deformation of the conductor seal 20 (in the radial direction and at least partly in the circumferential direction U) or of the first seal part 21 and, where appropriate, also of the second seal part 22 due to the seal receptacle 110 / the seal recess 110 or of the first housing part 410.
• the elastic deformation takes place, e.g., by means of flanks 111/211, 112/212, which relate to one another, of the conductor seal 20 and of the first seal part 21 respectively and optionally also of the second seal part 22, and of the seal receptacle 110 or of the seal recess 110 (cf. Figs. 1 to 4 and 5 and 6) .
• the seal recess 110 has two inner flanks 111, 112 and on the other hand the conductor seal 20; 21, 22 has two outer flanks 111, 112.
• An acute intermediate angle ano of the inner flanks 111, 112 is referred to as a recess angle ano.
• An acute intermediate angle a2o of the outer flanks 111, 112 is referred to as a seal angle a2o.
• the recess angle ano is preferably smaller than the seal angle a 2 o ⁇ - It is furthermore possible to employ mainly or substantially identical intermediate angles ano, a 2 o. In such a case, it is preferred that, in the transverse direction Q, the seal recess 110 (respective inner dimensions) is configured somewhat shorter than the conductor seal 20 (respective outer dimensions) .
• Figs. 7 to 9 show the application of the invention to a one- part conductor seal 20.
• the conductor 50 is fed through the conductor seal 20 and in this manner is placed at/in the conductor seal 20.
• flanks 111/211, 112/212 which relate to one another are used to generate the elastomechanical sealing force.
• this no longer mainly takes place with corresponding flanks 111/211, 112/212, but rather via appropriate
• the installing section 10, 11 or the first housing part 410 has an oval seal recess 110, the dimensions of which are somewhat smaller than the
• FIGs. 10 to 14 show the application of the invention to an embodiment of an electrical charging socket 2 for the motor vehicle industry.
• a first housing part 410 of the charging socket 2 has the installing section 10 (also referred to above as housing part 410) with the first seal part 21, and a second housing part 420 of the charging socket 2 has the second seal part 22 embedded therein.
• the second seal part 22 further comprises an annular sealing section 24 for mutually sealing off the two housing parts 410, 420.
• the first seal part 21 is, as described above, installed in the first housing part 410 (premounting position V, final mounting position E) .
• the two housing parts 410, 420 have catching units, which correspond to one another and which are complementary amongst one another at least in sections, for mutual fixing of the two housing parts 410,
• the sealing principle according to the invention can also be applied to several conductors 50 to be sealed off which are guided separately from one another e.g. into a housing 4 of an appliance 0.
• several conductors 50 can be guided in a parallel manner into the appliance 0, which have a common first housing part 410 and a common second housing part 420, and in each case have a separate first seal part 21 and preferably a single, common lower seal part 22.
• Figs. 15 and 16 show, by way of example, such an application of the invention.
• the sealing units 5 are arranged in series in the seal arrangement. Of course, other arrangements can be applied. List of reference symbols

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• 2018
  • 2018-03-05 DE DE102018104915.3A patent/DE102018104915A1/de active Pending
• 2019
  • 2019-03-01 EP EP19708526.9A patent/EP3763000A1/de active Pending
  • 2019-03-01 WO PCT/EP2019/055215 patent/WO2019170558A1/en unknown

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