EP3832806A1 - Douille élastique, douille de blindage pour la mise en contact des éléments de blindage - Google Patents

Douille élastique, douille de blindage pour la mise en contact des éléments de blindage Download PDF

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Publication number
EP3832806A1
EP3832806A1 EP20211484.9A EP20211484A EP3832806A1 EP 3832806 A1 EP3832806 A1 EP 3832806A1 EP 20211484 A EP20211484 A EP 20211484A EP 3832806 A1 EP3832806 A1 EP 3832806A1
Authority
EP
European Patent Office
Prior art keywords
sleeve
spring
shielding
area
contacting
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.)
Pending
Application number
EP20211484.9A
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German (de)
English (en)
Inventor
Martin Wacker
Josef Bauer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Amphenol Tuchel Electronics GmbH
Original Assignee
Amphenol Tuchel Electronics GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Amphenol Tuchel Electronics GmbH filed Critical Amphenol Tuchel Electronics GmbH
Publication of EP3832806A1 publication Critical patent/EP3832806A1/fr
Pending legal-status Critical Current

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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
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/03—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections
    • H01R9/05—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections for coaxial cables
    • H01R9/0527—Connection to outer conductor by action of a resilient member, e.g. spring
    • 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
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • H01R13/6581—Shield structure
    • H01R13/6582—Shield structure with resilient means for engaging mating connector

Definitions

  • the invention relates to a spring sleeve, a shield sleeve for contacting shielding elements between lines and connectors, having a spring area with at least one spring element and a sleeve area with a cylindrical and at least regional circumferential extension.
  • Contacts in general have at least one electrically conductive contact section for detachable, temporary or plug-in connection with a corresponding mating contact element and a shaft section adjoining the contact section for fastening an electrical line to the contact.
  • Such a contact, plug contact, high-current contact can be implemented in a wide variety of applications, for example for circuit board contacting, in vehicle wiring harness arrangements, on or in a charging plug or a charging socket, for example for charging an electrically powered vehicle, etc.
  • EMC electromagnetic compatibility
  • Electromagnetic compatibility means the (largely) lack of effects on other devices and facilities that could lead to unwanted or intentional malfunctions in electrical or electronic equipment due to e.g. B. electrical, magnetic or electromagnetic fields and processes. This already includes influences from currents or voltages.
  • the European EMC Directive defines electromagnetic compatibility as follows: "the ability of an apparatus, installation or system to work satisfactorily in the electromagnetic environment, without causing electromagnetic interference itself, which would be unacceptable for all apparatus, systems or systems in this environment. "(Source: EU Directive 2014/30 / EU Article 3 No. 4 of 02.26.2014).
  • Electromagnetically relevant interference emissions can also come from plugs, plug connections, contacts and cables, as these are live. Apparatus, devices, lines and connectors are often shielded to ensure electromagnetic compatibility. The shielding of electrotechnical devices, facilities and rooms is used to keep electrical and / or magnetic fields away from them or, conversely, to protect the environment from the fields emanating from the facility.
  • the shielding devices of cables In the area of plug-in connectors, plug-in contacts and contacts, the shielding devices of cables must be continued without gaps and interruptions in order to ensure that electromagnetic emissions are reduced or prevented.
  • a coupling impedance between the inner, current-carrying conductor (core, stranded wire) and the outer cable shield (outer conductor, cable shield) is implemented based on the mode of operation of the Faraday cage.
  • the connectors must be adequately shielded to improve electromagnetic compatibility.
  • electrical connectors are usually encapsulated with an electrically conductive sheath or a metallic braid is inserted.
  • the WO 2007/107196 A1 shows a solution in which the outer surface of the contact chamber is completely coated with a thin, electrically conductive layer.
  • the layer thickness is small in relation to the thickness of the contact chamber walls.
  • the abutment surfaces on the outside of the contact chamber are shielded with an overlap wall section which is also conductively coated on its side facing the abutment surfaces, preferably with the same layer as the outer surface of the contact chamber.
  • Metallization is preferably provided as the conductive layer.
  • the overlapping wall section represents a kind of labyrinth for electromagnetic radiation.
  • the electrically conductive coated outer surface of the contact chamber also has the function of passing on the shielding from a connection cable connected to the electrical connector to an interface to an application connected by means of the connector.
  • a sleeve which is resilient in the radial direction and presses the shielding, outer conductor of the connection cable radially inward onto the outer surface of a conductive collar section can also be used for shielding. It is important that the sleeve has a resilient effect and thus the pressing force radially inward from tabs spaced apart in the circumferential direction. The tabs press the shielding of the connection cable onto the outside of the collar section.
  • a spring sleeve can be provided with which the shielding is passed on to the interface of the application.
  • the spring sleeve is pulled over a neck of the contact chamber and is designed in such a way that it springs both radially inwards and radially outwards.
  • tabs that are resilient in the radial direction are provided on the inner circumference and on the outer circumference of the spring sleeve.
  • the spring sleeve also fulfills the function of tolerance compensation in the interface to the application due to the resilient tabs provided on the outer circumference.
  • the spring sleeve In the assembled state, the spring sleeve is arranged concentrically to the longitudinal center axis of the socket-like contact.
  • a shielded connector assembly is also in the DE 101 40 685 C1 disclosed. Shown is a line connection with an inserted plug-in coupling, one coupling part having a protective sleeve and the other coupling part having two guide sleeves and a cable entry that are coaxially aligned with one another.
  • the components are connected to one another both electrically and in terms of fluid technology via fluid seals and subsequent electrical contacts at their junctions.
  • the DE 197 37 321 C2 discloses a single-pole load connector combination with an add-on plug and a loose plug, each of which has a housing made of aluminum, a front end section of the add-on plug being insertable coaxially into a socket section of the loose plug.
  • An insulating plug insert which receives a contact element connected to a connection cable, is arranged in each of the add-on plug and the loose plug.
  • the attachment plug and the loose plug each have a shielding sheath of the respective connection cable in the form of a hose spring, which establish a conductive connection between the shielding sheath and a screw-in socket screwed into the housing.
  • Another hose spring is inserted into the front socket section of the loose connector, which forms an effectively closed shielding of the connector combination when the connectors are plugged into one another.
  • a high-frequency connector for symmetrical, shielded cables is used in the DD 282 783 A5 presented.
  • the connector components have a first and a second one with a continuous longitudinal slot and a spring sleeve, each provided with a circumferential projection at the front ends of its inner wall, with its one projection into the circumferential groove of the first and second insulating part and with its other projection behind a first or second insulating part.
  • the second flange with a pipe socket carrying an external thread engages that the first and second metal cylinders are seated on the first and second spring sleeves and each strike with their circular end face pointing against the insertion direction on one end of the first or second spring sleeve and that one in each case Nut on the external thread of the pipe socket holds the first or second metal cylinder without play and the clamping sleeve arranged on the first metal cylinder with axial play.
  • a socket with a shoulder pointing against the plug-in direction sits on the outer braided shield of a symmetrical, shielded cable to be connected to the HF connector and is received in the interior of a cylindrical shank adjoining the pipe socket in such a way that the outer wall of the socket and the inner wall of the cylindrical shank are The turned-back end of the shielding braid pointing against the plug-in direction is located and the cylindrical shaft, the turned-back end of the shielding braid and the braided shield of the cable / socket are squeezed together.
  • the spring sleeves, shield sleeves, shield springs available in the prior art have different disadvantages depending on the embodiment. Many solutions are complex, cost-disadvantageous and cannot be produced efficiently due to their multi-part and / or geometric design. If clamping functions are implemented integratively with the spring sleeves, shield sleeves, shield springs, the fatigue strength requirements are often not met. With known solutions there is also the risk that electrical resistance properties lead to increased power losses.
  • the invention proposes a shield spring, the spring area of which is geometrically formed by a plurality of roof-shaped spring elements, spring lamellae.
  • the shield spring is supplemented by a sleeve-shaped section which, in a variant of the invention, forms a triangular arrangement in some areas with the roof-shaped spring lamellae.
  • the increased contact pressure of the spring lamella on the housing of the plug connection or the contacting partner of the shielding results in a lower electrical resistance in the contacting area because possible surface contaminants, oxide layers are practically penetrated, rubbed through, for example aluminum oxide.
  • Figure 1 forms the perspective view of a first exemplary embodiment of the spring sleeve 1 according to the invention with a spring area, spring element area 10 and a sleeve area 20.
  • the spring area 10 and the sleeve area 20 are designed in one piece and are manufactured based on a semi-finished product surface 100, preferably by reshaping.
  • the sleeve area 20 is cylindrical and is therefore plug-compatible with a line, cable with an inner core and shielding, which is electrically separated by insulation material, usually in the form of a metal mesh.
  • the sleeve area 20 can have one or a plurality of bevels 21. Due to the at least one bevel 21, there is a mechanical stop in front of which the sliding path of the spring sleeve 1 is limited to a line and supports the defined position of the spring sleeve 1 on the line.
  • the spring sleeve 1 shown is designed segment-like in the context of a possible embodiment of the invention in the region of the sleeve section 20. At least one segment 22, preferably a plurality of segments 22, is formed in the cylindrical area of the sleeve section 20 by deformation, reshaping of the preferably flat starting material. In the example shown, segments 22 are present on the entire circumference of the sleeve section 20.
  • FIG. 2 shows the sectional representation of the front view of the first exemplary embodiment of the spring sleeve 1 according to the invention with a spring area, spring element area 10 and a sleeve area 20 Figure 1 .
  • the segments 22 are one-piece elements of the spring sleeve and preferably extend over the entire axial length of the sleeve section.
  • the segmented design of the sleeve section 20 makes it possible that a bevel 21 and / or a spring element 13 can be arranged at each end of the axial longitudinal extension of the segment.
  • the at least one spring element 13 of this first exemplary embodiment is formed by a first and at least one second leg, spring leg 12.
  • the first and the at least one second leg 12 are arranged with respect to one another in such a way that a roof-shaped geometry is formed.
  • the roof-shaped and / or triangular shape in the spring area prevents or minimizes creep processes and relaxation of the spring, with the result that the fatigue strength is increased and / or the spring force and contact pressure of the contact points is largely constant over the long term.
  • a rounding, edging 11 can be formed at the end of a leg 12.
  • the rounding 11 enables, better than a blunt outlet of the leg 12, the sliding relative movement on the respective contact surface in the event of deformation of the spring element 13 and / or the support of the spring element 13 via the contact contact point of the rounding, edging 11 on the respective contact surface, which is in the The embodiment shown is the outer surface of the sleeve area.
  • Figure 3 comprises the sectional view of the front view of the first exemplary embodiment of the spring sleeve 1 according to the invention within an assembled and plugged connector.
  • the shielding sleeve 1 is pushed onto the line 200 and comprises a section of the outer insulation 204.
  • the bevel 21 resting on the end face of the outer insulation 204 defines or fixes the axial position of the spring sleeve 1 in the pushing-on direction.
  • the cylinder-like outer surface of the sleeve section 20 is in electrically conductive contact with the line shielding 203 at least in some areas.
  • the line shielding 203 is exposed and turned over by previously removing an area of the outer insulation 204.
  • the spring element area 10 of the shielding sleeve 1 is at least partially and elastically and possibly also plastically deformed in the radial direction by a compression section, so that a contacting force is exerted on the contact partner - here the inner housing surface of the connector plug - due to the elastic restoring properties of the spring element area 10.
  • the at least one spring element 13 of the spring area 10 rests with its rounded end 11 on the outer surface of the sleeve area 20 and is supported on it in this way.
  • Figure 4 illustrates the perspective view of a second embodiment of the spring sleeve 1 according to the invention with a spring area, spring element area 10 and a sleeve area 20.
  • the idea of the invention is implemented here by a plurality of roof-shaped spring lamellae, spring elements 13, which are formed in an axially continuous extension on the sleeve area 20.
  • a triangular geometric situation of the spring elements 13 of the spring area 10 is achieved in the assembled state through the interaction with the outer insulation 204 of the electrically conductive cable 200 by applying the spring lamellae 13 to the outer insulation 204.
  • the contact is realized by contact surfaces at the end of the spring lamellae 13 over the respective rounded curvature, edging 11.
  • the triangular geometric situation of the spring element area 10 in the assembled state is shown Figure 5 .
  • the illustrated sectional view of the front view of the second exemplary embodiment of the spring sleeve 1 according to the invention within an assembled and plugged connector uses the advantages of the invention described above through the triangular geometric situation of the spring element area 10.
  • Figure 6 comprises the perspective view of a third embodiment of the spring sleeve 1 according to the invention with a spring area, spring element area 10 and a sleeve area 20.
  • the end side of the spring elements 13 is geometrically changed here.
  • a rounding, edging 11 can be formed which, in contrast to the first exemplary embodiment, is directed in the direction of the inside of the spring sleeve 1.
  • the contact surface is achieved by an end-side spring element region which is largely parallel or plane-parallel to the contact surface on the sleeve region 20.
  • this enables the sliding relative movement on the respective contact surface in the event of deformations of the spring element 13 better than a blunt run-out of the leg 12.
  • Figure 7 shows the sectional view of the front view of the third embodiment of the spring sleeve 1 according to the invention Figure 6 with a spring area, spring element area 10 and a sleeve area 20.
  • the at least one spring element 13 of the third embodiment is also formed here by a first and at least one second leg, spring leg 12.
  • the first and the at least one second leg 12 are arranged with respect to one another in such a way that a roof-shaped geometry is formed.
  • the roof-shaped geometric design is supplemented by a flattening 15 and replaces the roof tip within the roof shape.
  • the flattening 15 modifies the resilient behavior of the spring lamellae 13 in different ways, depending on the configuration.
  • the spring characteristic curve in the direction of a flatter spring characteristic curve compared to a spring lamella 13 with a roof tip according to the second embodiment, as in FIG Figure 4 and 5 shown is modified.
  • the flatter spring characteristic results in a greater spring deflection with the same force effect compared to a spring lamella 13 with a roof top. This is the result of the reduced flexural rigidity of the spring lamella 13 and / or the changed force application point, implemented on the bulge 14 as a result of the length ratios of the legs 12.
  • a triangular geometric situation of the spring elements 13 of the spring area 10 with flattening 15 is also achieved with the fourth exemplary embodiment in the assembled state by interacting with the outer insulation 204 of the electrically conductive cable 200 by placing the spring lamellae 13 on the outer insulation 204 the contact surfaces at the end of the spring lamellae 13 over the rounded curvature, edging 11.
  • Figure 10 includes the sectional view of the front view of the fourth embodiment of the spring sleeve 1 according to the invention with a spring area, spring element area 10 and a sleeve area 20 within a mounted and plugged connection and uses the advantages of the invention described above through the triangular geometric situation of the spring element area 10 in connection with the flattening 15 for the targeted modification of the resilient behavior of the spring lamellae 13, depending on the configuration in different ways.
  • the geometric design shown has a longer leg 12 between the sleeve area 20 and the flat 15 than the length of the leg 12 between the flat 15 and the round 11. This results in a flat spring characteristic, ie the elasticity, deformability is increased and the spring travel is in comparison with the formation of a roof peak with the same resulting force acting radially to the spring sleeve 1 increased.
  • Figure 11 shows the top view of an exemplary flat semifinished product 100 for the production of a spring sleeve 1 according to the invention.
  • the semifinished product which is preferably present as a stamped part, is prepared for the subsequent shaping process by folding, folding.
  • Suitable materials must be electrically conductive as well as formable and have elastic properties.

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  • Details Of Connecting Devices For Male And Female Coupling (AREA)
EP20211484.9A 2019-12-03 2020-12-03 Douille élastique, douille de blindage pour la mise en contact des éléments de blindage Pending EP3832806A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019132780.6A DE102019132780B4 (de) 2019-12-03 2019-12-03 Schirmhülse zur Kontaktierung von Schirmungselementen

Publications (1)

Publication Number Publication Date
EP3832806A1 true EP3832806A1 (fr) 2021-06-09

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20211484.9A Pending EP3832806A1 (fr) 2019-12-03 2020-12-03 Douille élastique, douille de blindage pour la mise en contact des éléments de blindage

Country Status (2)

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EP (1) EP3832806A1 (fr)
DE (1) DE102019132780B4 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117394049A (zh) * 2023-12-11 2024-01-12 东莞市南谷第电子有限公司 一种光伏连接器的防尘结构

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0052980A2 (fr) * 1980-11-26 1982-06-02 AMP INCORPORATED (a New Jersey corporation) Système à éléments pour un assemblage d'un connecteur coaxial
DD282783A5 (de) 1989-04-25 1990-09-19 Funkwerk Koepenick Zentr F For Hf-steckverbinder fuer symmetrische, geschirmte leitungen
DE19737321C2 (de) 1996-08-30 2000-05-25 Whitaker Corp Einpolige Laststeckverbinderkombination
DE10140685C1 (de) 2001-08-24 2003-03-27 Ballard Power Systems Elektrische Leitungsverbindung
WO2007107196A1 (fr) 2006-03-17 2007-09-27 Amphenol-Tuchel Electronics Gmbh Connecteur électrique
DE102011102566A1 (de) * 2011-03-04 2012-09-06 Amphenol-Tuchel Electronics Gmbh Federkontaktelement
DE102012105258A1 (de) * 2012-06-18 2013-12-19 Tyco Electronics Amp Gmbh Schirmhülse und Abschirmendelement umfassend eine Schirmhülse

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009056972A1 (de) 2009-12-07 2011-06-09 Amphenol-Tuchel Electronics Gmbh Elekrischer Steckkontakt
DE102010002681B4 (de) 2010-03-09 2018-10-18 Te Connectivity Germany Gmbh Elektrischer Steckverbinder, elektrische Steckverbindung sowie konfektioniertes elektrisches Kabel

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0052980A2 (fr) * 1980-11-26 1982-06-02 AMP INCORPORATED (a New Jersey corporation) Système à éléments pour un assemblage d'un connecteur coaxial
DD282783A5 (de) 1989-04-25 1990-09-19 Funkwerk Koepenick Zentr F For Hf-steckverbinder fuer symmetrische, geschirmte leitungen
DE19737321C2 (de) 1996-08-30 2000-05-25 Whitaker Corp Einpolige Laststeckverbinderkombination
DE10140685C1 (de) 2001-08-24 2003-03-27 Ballard Power Systems Elektrische Leitungsverbindung
WO2007107196A1 (fr) 2006-03-17 2007-09-27 Amphenol-Tuchel Electronics Gmbh Connecteur électrique
DE102011102566A1 (de) * 2011-03-04 2012-09-06 Amphenol-Tuchel Electronics Gmbh Federkontaktelement
DE102012105258A1 (de) * 2012-06-18 2013-12-19 Tyco Electronics Amp Gmbh Schirmhülse und Abschirmendelement umfassend eine Schirmhülse

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117394049A (zh) * 2023-12-11 2024-01-12 东莞市南谷第电子有限公司 一种光伏连接器的防尘结构
CN117394049B (zh) * 2023-12-11 2024-03-26 东莞市南谷第电子有限公司 一种光伏连接器的防尘结构

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Publication number Publication date
DE102019132780A1 (de) 2021-06-10
DE102019132780B4 (de) 2022-05-19

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