WO2024100019A1 - Adaptateur angulaire pour connexions enfichables d'airbag - Google Patents

Adaptateur angulaire pour connexions enfichables d'airbag Download PDF

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Publication number
WO2024100019A1
WO2024100019A1 PCT/EP2023/080949 EP2023080949W WO2024100019A1 WO 2024100019 A1 WO2024100019 A1 WO 2024100019A1 EP 2023080949 W EP2023080949 W EP 2023080949W WO 2024100019 A1 WO2024100019 A1 WO 2024100019A1
Authority
WO
WIPO (PCT)
Prior art keywords
contact
pin
contact housing
housing
socket
Prior art date
Application number
PCT/EP2023/080949
Other languages
German (de)
English (en)
Inventor
Alfred Annecke
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 WO2024100019A1 publication Critical patent/WO2024100019A1/fr

Links

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
    • H01R13/502—Bases; Cases composed of different pieces
    • H01R13/506—Bases; Cases composed of different pieces assembled by snap action of the parts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R31/00—Coupling parts supported only by co-operation with counterpart
    • H01R31/06—Intermediate parts for linking two coupling parts, e.g. adapter
    • 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
    • H01R43/20—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve
    • 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
    • H01R43/16—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing contact members, e.g. by punching and by bending

Definitions

  • the invention relates to an angle adapter for airbag plug connections, comprising at least one pin contact housing and at least one socket contact housing and at least one contact part, wherein the at least one contact part has a socket contact and a pin contact, which are electrically conductively and mechanically connected to one another.
  • Plug connections in a wide variety of designs and variants are used to make contact or create detachable electrically conductive connections.
  • Plug connection solutions are available in a wide range of different designs, for example with regard to the number of poles, electrical performance and the conditioning of a wide variety of external influences such as humidity, temperature, corrosive media or mechanical loads.
  • IP International Protection
  • Electrical connectors must ensure the permanent, flawless transmission of electrical signals and electrical power in the automotive sector, in dirty, damp or chemically aggressive environments. Due to the wide range of applications for connectors, a large number of specially optimized connectors are known.
  • Connectors designed for use with airbag ignition systems must be compact and space-saving, as there is very little space available in the steering wheel of a vehicle when they are used.
  • disruptive contours of the components protruding from the location of the connector can increase the demands on the structural design even further.
  • airbag connectors are plugged directly onto the gas generator, for example of a conventional airbag or belt tensioner module, and electrically contacted to establish an electrical connection to the control unit via a cable.
  • the airbag connector is mechanically connected to the gas generator via a latch to prevent it from accidentally coming loose or falling off the gas generator interface.
  • This generator interface (generator pocket) is internationally standardized and can be mechanically coded using insulating rings inserted into it.
  • the airbag connectors used which in turn mechanically correspond to the coding of the insulating ring used, are usually designed with a cable outlet in a 90 degree or 180 degree direction relative to the plug connection of the gas generator. These two cable outlet forms support the mass production of airbag connectors in an advantageous way, but also define the supported cable outlet directions relative to the generator without any variation options.
  • the very limited installation space for the airbag connectors can be further restricted by, for example, existing interference contours in the area of the gas generator, so that cable outlet directions of the airbag connector that deviate from the 90 degree or 180 degree cable outlet can be advantageous in order to be able to comply with the installation space limitations.
  • the invention proposes an intermediate adapter in the form of an angle adapter, into which an airbag connector is plugged on one side and the gas generator on the other side.
  • an airbag connector is plugged on one side and the gas generator on the other side.
  • the exit direction of the cable or the airbag connector housing can be changed subsequently and while continuing to use the airbag connector, i.e. supplemented or extended by a defined angle.
  • Using the angle adapter according to the invention makes it possible to use inexpensive standard airbag connectors with a 90 degree or 180 degree cable exit angle.
  • the intermediate adapter designed as an angle adapter, realizes both the mechanical and the electrical connection by changing the angle of the cable outlet compared to the airbag plug connection without an angle adapter.
  • the construction of the angle adapter is realized by at least two elements, preferably made of plastic, which are secured to each other by locking.
  • the angle adapter In the plug-in and contact direction towards the gas generator, the angle adapter is designed to be compatible with the plug-in nozzle of the gas generator in terms of both the mechanical and electrical plug-in pattern.
  • the mating plug side of the angle adapter has a connection pattern that is characterized by a standardized receptacle for an insulating ring and/or the airbag plug connection.
  • the angle adapter mechanically snaps into the gas generator holder via locking hooks and integrally establishes the electrical connection to the igniter pins.
  • the contact parts in the angle adapter consist of a pair of spring-loaded socket contacts and a pair of pin contacts. Both pairs of socket contacts are designed so that they can be electrically connected to the pin contact pair at a predetermined angle (e.g. 90 degrees).
  • the socket contact and pin contact form a contact assembly. Identical contact assemblies can be used for both current paths in order to keep the costs for the necessary punching tools and devices low.
  • the angle adapter according to the invention can be designed with different offsets, so that different angle changes of the cable outlet angle of the airbag plug connection are possible. This means that in addition to a 90 degree adapter design, almost all angles between almost 0 degrees and 180 degrees are possible.
  • the structural design of the angle adapter offers a number of advantages, in particular a compact geometry and shape is achieved that saves installation space, and the adaptation of the cable outlet angle is optimized for the installation space requirements when the airbag connector partners are reused.
  • angle adapter formed by at least two angle adapter elements and contact parts inside them, the entire angle adapter can be completely pre-assembled, completely independently of the gas generator or airbag connector, so that a homogeneous component is available that can be assembled as a finished and tested product.
  • tried and tested socket contact geometries that have been used for years, the risk of component failure is reduced to a minimum.
  • the gas generator itself can be used without changing its connection area.
  • the angle adapter's contact area, including the plug connector corresponds to the usual airbag connector standard.
  • the socket contacts in the angle adapter are optimally protected against damage by the pins during the plugging process.
  • angle adapter When manufacturing the angle adapter, manufacturing methods are used which minimize the risk of rejects and reduce costs by making it possible to do this within a fully automated production line.
  • the angle adapter according to the invention as a finished component can be mounted as a finished part first in the gas generator, so that after the entire airbag unit has been installed in another subassembly, the airbag connector can be plugged in.
  • the reverse sequence i.e. first plugging the angle adapter onto the airbag connector and then plugging this unit into the gas generator in the next step, is also supported, but cannot be combined with the alternative conceivable contacting by welding the contact elements to the igniter pins.
  • angle adapter according to the invention is suitable for all pyrotechnic applications, for example also belt tensioners, in addition to the application described here in the area of airbag plug connections.
  • Fig. 1 shows the angle adapter for airbag connectors in two spatial images with different viewing directions
  • Fig. 2 shows various views, sections and detailed areas of the angle adapter
  • Fig. 3 the top view of the pin contact housing of the angle adapter looking in the longitudinal direction of the pin contact;
  • Fig. 4 the exploded view of the angle adapter
  • Fig. 5 the three-dimensional representation of the socket contact housing with double arm locking
  • Fig. 6 two perspective views of the socket contact housing from different viewing directions
  • Fig. 7 the three-dimensional representation of the pin contact housing with double rear grip locking
  • Fig. 8 two perspective views of the pin contact housing from different viewing directions
  • Fig. 9 is a spatial representation of a contact part
  • Fig. 10 shows in two perspective views the sequence of manufacturing steps of a contact part
  • Fig. 11 the exploded view of the pin contact housing and two contact parts
  • Fig. 12 the 3D representation of the pin contact housing with mounted contact parts
  • Fig. 13 the exploded view of the pin contact housing with contact parts and socket contact housing
  • Fig. 14 the 3D representation of the pin contact housing with assembled contact parts and socket contact housing; Fig. 15 different 3D sectional views of the angle adapter in the fully assembled state.
  • Figure 1 includes the representation of the angle adapter 1 for airbag connectors in two spatial images with different viewing directions.
  • the angle adapter 1 is primarily formed by at least two angle adapter elements in the form of a pin contact housing 10 and a socket contact housing 20. At least one contact part 30 is accommodated in the interior of the angle adapter 1.
  • the pin contact housing 10 and the socket contact housing 20 are detachably connected to one another and put together.
  • At least one pin contact 32 of the at least one contact part 30 is arranged in its interior, so that an airbag connector can be electrically and mechanically contacted.
  • at least one socket contact 31 of the at least one contact part 30 is arranged in its interior, so that a gas generator can be electrically and mechanically contacted.
  • an adapter angle of 90 degrees is realized; other angle designs are also supported by the invention.
  • FIG. 2 shows the representation of various views, sections and detailed areas of the angle adapter 1.
  • the pin contact housing 10 and the socket contact housing 20, which essentially form the angle adapter 1 are detachably connected to one another and put together by a double locking mechanism, consisting of a double rear grip locking mechanism 11 and a double arm locking mechanism 21 and a double latching mechanism, consisting of a double cantilever latching mechanism 12 and a double groove latching mechanism 22.
  • two contact parts 30 are accommodated inside the angle adapter 1, each consisting of a socket contact 31 and a pin contact 32.
  • Figure 3 shows the top view of the pin contact housing 10 of the angle adapter 1, looking in the longitudinal direction of the pin contact.
  • the distance between the pair of pin contacts 32 is 3.1 mm here as an example.
  • Figure 4 includes the exploded view of an embodiment of the angle adapter 1, consisting essentially of a pin contact housing 10 and a socket contact housing 20 as well as two contact parts 30.
  • the contact parts 30 are formed from at least two contact elements, consisting of a socket contact 31 and a pin contact 32.
  • the section formed from the socket contact 31 is received by the socket contact housing 20 in the assembled state of the angle adapter 1
  • the section formed from the pin contact 32 is received by the pin contact housing 10 in the assembled state of the angle adapter 1.
  • Figure 5 shows the three-dimensional representation of the socket contact housing 20 with double-arm locking 21 and double-groove locking 22.
  • the double-arm locking 21 is part of a guide element 20' which is preferably formed in one piece with the socket contact housing 20 and has a U-shaped cross section.
  • a cantilever area 20" is provided on the guide element 20', on the end of which the double-arm locking 21 is arranged.
  • Figure 6 illustrates two perspective views of the socket contact housing 20 from different viewing directions.
  • the upper figure shows the view of the underside of the socket contact housing 20 with the guide element 20' and cantilever area 20" as well as the contact tunnels 20'" provided therein, which form a receiving space for sections of the pin contact 32 and connection areas of the pin contact 32 and socket contact 31 of the contact parts 30.
  • the underside of the guide element 20' of this embodiment of the socket housing 20 has at least one marking 23 which is suitable for identifying the cavity of the injection molding tool and/or tool revision mark.
  • the at least one marking 23 is provided within a region of the guide element 20' which projects beyond the socket contact housing 20 and opposite the cantilever region 20".
  • the figure below shows the connection diagram of the socket contact housing 20.
  • the socket contacts 31 are accommodated and positioned within socket housing tunnels 25.
  • the socket housing tunnels 25 have optimized Wall thicknesses in terms of stability, strength and at the same time minimizing the use of materials.
  • the double groove locking mechanism 22 of the socket contact housing 20 can be designed with groove radii 22' in the corner areas of the grooves, so that the notch effect is reduced and the strength is thus increased.
  • a marking 24 containing information on the date of manufacture can be provided on the cantilever area 20" of the guide element 20' between the double arm locking mechanism 21 and the base body of the socket contact housing 20.
  • Figure 7 includes the three-dimensional representation of the pin contact housing with double rear grip lock 11 and double cantilever latch 12.
  • the pin contact housing 10 has a receiving space 10' with a cantilever receptacle 10", into which the socket contact housing 20 with its guide element 20' and the cantilever area 20" can be received and can be fixed in the received position relative to the pin contact housing 10 by the double rear grip lock 11 and double cantilever latch 12.
  • the double rear grip lock 11 works together with the double arm lock 21 of the socket contact housing 20, and the double cantilever latch 12 also works together with the double groove latch 22 of the socket contact housing 20.
  • Figure 8 shows two perspective views of the pin contact housing 10 from different viewing directions.
  • the upper illustration shows the pin contact housing 10 looking towards the receiving space 10' and the cantilever holder 10" for the guide element 20' and the cantilever area 20" of the socket contact housing 20.
  • At least one marking 13 with information on the cavity and/or tool revision can be provided in the section of the cantilever holder 10".
  • the lower illustration of Figure 8 shows the pin contact housing 10 looking towards the outer wall of the housing body.
  • at least one marking 14 with information on the date of manufacture can be provided on its outer wall. Since the marking 14 is provided on the outside of the pin contact housing 10, the marking 14 can also be seen in the fully assembled angle adapter 1, i.e. the combination of the socket contact housing 20 and the pin contact housing 10 with at least one contact part 30 accommodated inside.
  • the embodiment of the socket contact housing 20 shown in Figure 8 has two holes 15 for dowel pins as a positioning aid for the contact parts 30 when assembling the socket contact housing 20 and assembling it with the pin contact housing 10.
  • Figure 9 shows the spatial representation of a contact part 30, having a socket contact 31 and a pin contact 32.
  • This exemplary example of a possible embodiment of the contact part 30 is designed for an angle adapter 1 with a 90 degree cable outlet angle and has a connection lug 34 with a connection 33 for mechanically fixing and electrically contacting the socket contact 31 and pin contact 32.
  • the connection 33 can - as shown in Figure 9 - be accomplished by rolling in a section of a pilot strip 35 (not shown in Figure 8, since a finished part is shown here) with a connection lug 34.
  • the prerequisite for this embodiment is that, for example, a punching and bending technique in conjunction with a roll semi-finished material is selected as the manufacturing process.
  • Figure 10 shows the sequence of manufacturing steps of a contact part 30 in two perspective views.
  • the upper view shows the elements of the contact part 30, consisting of socket contact 31, pin contact 32, a pilot strip 35 with connection lug 34 and a connection 33 in the form of a roll for receiving the pin contact 32.
  • the lower view shows the arrangement of the elements 31, 32, 33, 34, 35 of the contact part 30 after the pin contact 32 has been pushed into the connection 33.
  • Various methods can be used to fix the pin contact 32 in the connection 33: pressing, welding, gluing, etc.
  • the socket contact 31 for contacting the gas generator of an airbag or other pyrotechnic power consumers can be manufactured, for example, by punching and bending technology.
  • the starting material is a semi-finished product in the form of rolled tape and is attached to a pilot strip 35 at the side. If the angle adapter 1 changes the angle by 90 degrees (as shown in Figure 10), the connection lug 34 is rotated by 90 degrees and has a molded-on roll as a connection 33 or spring clamp, guiding a pin contact 32 to be inserted.
  • the pin contact 32 which later makes the electrical contact to the airbag plug, is axially inserted into the connection 33 of the connection lug 34 during the manufacture of the contact part 30 and is permanently fixed in an electrically conductive manner, for example by resistance welding.
  • the contact surfaces of the socket contact 31 and/or the pin contact 32 can be selectively plated, for example with a gold and/or nickel material.
  • a gold and/or nickel material For example, it is possible to provide a combination of gold with a coating thickness of 0.8 pm over a nickel layer with a coating thickness of 1.3 pm. If the pin contact 32 is fixed in the connection 33 by a welding process, no coating is applied in this area.
  • Figure 11 includes the exploded view of the pin contact housing 10 and two contact parts 30. After the contact parts 30 have been manufactured as an assembly by putting together the pin contact 32 and the socket contact 31, they are inserted axially to the base body and plug-in area of the angle adapter 1 for the airbag plug. For this purpose, at least one pin contact through-line 10"' is provided in the wall between the base body and the receiving space 10'.
  • Figure 12 shows the 3D representation of the pin contact housing 10 with mounted contact parts 30. After inserting the contact parts 30 into the pin contact housing 10, the assembly state shown in Figure 12 is achieved.
  • dowel pins 36 are used as a positioning aid, which are inserted through a hole 15 (see also Figure 8, lower illustration) in the receiving space 10' and the socket contacts 31 protrude into them. This axial positioning aid is important for the correct position of the contact parts 30 in order to enable the assembly of the socket contact housing 20, as shown in Figure 13.
  • Figure 13 illustrates an exploded view of the pin contact housing 10 with contact parts 30 and the socket contact housing 20 in a pre-assembly position.
  • the socket contact housing 20 is slipped over the socket contacts 31 of the contact parts 30 and is introduced with its guide element 20' and boom area 20" into the receiving space 10' of the pin contact housing 10.
  • the double locking mechanism consisting of double rear grip locking mechanism 11 and double arm locking mechanism 21
  • the double latching mechanism consisting of double boom latching mechanism 12 and double groove latching mechanism 22
  • the two contact parts 30 are positioned precisely within the angle adapter 1 and the two-part angle adapter housing, consisting of pin contact housing 10 and socket contact housing 20, is mechanically stabilized by the locking and latching so that the forces that occur during operation can be absorbed.
  • Tensile and bending forces of the airbag plug are introduced in a form-fitting manner into the corresponding double groove latching 22 of the socket contact housing 20 by the double cantilever latching 12.
  • At least one rib 16 projecting laterally from the pin contact housing 10 additionally mechanically supports the housing of the mounted airbag connector relative to the angle adapter 1.
  • At least one rib 26 projecting laterally additionally mechanically supports the housing of the angle adapter 1 relative to the gas generator.
  • Figure 14 shows the 3D representation of the pin contact housing 10 with assembled contact parts 30 and socket contact housing 20, which in the shown assembly corresponds to the finished assembly situation of the angle adapter 1.
  • the double locking mechanism consisting of the double rear grip locking mechanism 11 and the double arm locking mechanism 21, and the double latching mechanism, consisting of the double cantilever latching mechanism 12 and the double groove latching mechanism 22, detachably couple the pin contact housing 10 and the socket contact housing 20.
  • the contact parts 30 are located inside the two housing components 10, 20 and are thus positioned and fixed in all spatial directions, so that the dowel pins 36 are no longer required as a positioning assembly aid. They can therefore be removed by pulling them out of the holes 15.
  • Figure 15 shows various 3D sectional views of the angle adapter 1 in the fully assembled state.
  • the last manufacturing step can be quality and functional checks as well as packaging of the angle adapter 1.
  • the embodiment of the angle adapter 1 shown and explained in the figures realizes a change in the angle of the contact partners, consisting of the airbag plug and gas generator, of 90 degrees.
  • the invention also supports angles that deviate from this. This requires appropriately adapted geometries of the pin contact housing 10, the socket contact housing 20 and the contact parts 30 and the double locking 11, 21 and double latching 12, 22.
  • the basic structure of the angle adapter 1 according to the invention remains the same.
  • the invention provides that the angle is adapted in a suitable manner during assembly by plastic deformation of the connection lug 34 and pilot strip 35.
  • the invention provides a reduced wall thickness of the starting material, so that the mechanical strength is reduced and the plastic deformability is increased.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Air Bags (AREA)

Abstract

L'invention concerne un adaptateur angulaire pour des connexions enfichables de coussin de sécurité gonflable, comprenant au moins un boîtier de contact de broche, au moins un boîtier de contact de douille et au moins une partie de contact, la ou les parties de contact ayant un contact de douille et un contact de broche, qui sont interconnectés électriquement et mécaniquement, et le ou les boîtiers de contact de broche et le ou les boîtiers de contact de douille étant placés ensemble et couplés de manière amovible l'un à l'autre par l'intermédiaire d'au moins un mécanisme de verrouillage double et d'au moins un mécanisme de verrouillage double.
PCT/EP2023/080949 2022-11-10 2023-11-07 Adaptateur angulaire pour connexions enfichables d'airbag WO2024100019A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022129741.1 2022-11-10
DE102022129741.1A DE102022129741B3 (de) 2022-11-10 2022-11-10 Winkeladapter für Airbag-Steckverbindungen

Publications (1)

Publication Number Publication Date
WO2024100019A1 true WO2024100019A1 (fr) 2024-05-16

Family

ID=88839830

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2023/080949 WO2024100019A1 (fr) 2022-11-10 2023-11-07 Adaptateur angulaire pour connexions enfichables d'airbag

Country Status (2)

Country Link
DE (1) DE102022129741B3 (fr)
WO (1) WO2024100019A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1126213C (zh) * 1996-08-21 2003-10-29 住友电装株式会社 一种短路端子与连接器的连接方法及一种含有短路端子的连接装置
US20120309218A1 (en) * 2011-05-31 2012-12-06 Amphenol-Tuchel Electronics Gmbh Electrical plug-in connector and electrical connection system
US20200259287A1 (en) * 2017-10-23 2020-08-13 Aptiv Technologies Limited A flat electrical connect
DE102019132391B4 (de) 2019-11-28 2021-11-04 Amphenol-Tuchel Electronics Gmbh Sekundärverriegelungsvorrichtung

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007005349A1 (de) 2007-02-02 2008-08-07 Tyco Electronics Amp Gmbh Abgedichteter Airbagsteckverbinder
JP5727469B2 (ja) 2009-06-09 2015-06-03 エフシーアイ・オートモティヴ・ホールディング 安全拘束システム用コネクタ

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1126213C (zh) * 1996-08-21 2003-10-29 住友电装株式会社 一种短路端子与连接器的连接方法及一种含有短路端子的连接装置
US20120309218A1 (en) * 2011-05-31 2012-12-06 Amphenol-Tuchel Electronics Gmbh Electrical plug-in connector and electrical connection system
US20200259287A1 (en) * 2017-10-23 2020-08-13 Aptiv Technologies Limited A flat electrical connect
DE102019132391B4 (de) 2019-11-28 2021-11-04 Amphenol-Tuchel Electronics Gmbh Sekundärverriegelungsvorrichtung

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