WO2013034286A1 - Connecteur à contacts protégés - Google Patents

Connecteur à contacts protégés Download PDF

Info

Publication number
WO2013034286A1
WO2013034286A1 PCT/EP2012/003706 EP2012003706W WO2013034286A1 WO 2013034286 A1 WO2013034286 A1 WO 2013034286A1 EP 2012003706 W EP2012003706 W EP 2012003706W WO 2013034286 A1 WO2013034286 A1 WO 2013034286A1
Authority
WO
WIPO (PCT)
Prior art keywords
plug
socket
sleeve
contact
circular
Prior art date
Application number
PCT/EP2012/003706
Other languages
German (de)
English (en)
Inventor
Ernst Michael Carle
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
Priority to CN201280043128.5A priority Critical patent/CN103782456A/zh
Priority to JP2014528894A priority patent/JP6329071B2/ja
Priority to EP12769596.3A priority patent/EP2754211B9/fr
Publication of WO2013034286A1 publication Critical patent/WO2013034286A1/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
    • H01R13/64—Means for preventing incorrect coupling
    • 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
    • H01R13/428—Securing in a demountable manner by resilient locking means on the contact members; by locking means on resilient contact members
    • H01R13/432—Securing in a demountable manner by resilient locking means on the contact members; by locking means on resilient contact members by stamped-out resilient tongue snapping behind shoulder in base or case
    • 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
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/622—Screw-ring or screw-casing
    • 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
    • H01R13/64—Means for preventing incorrect coupling
    • H01R13/645—Means for preventing incorrect coupling by exchangeable elements on case or base
    • H01R13/6456—Means for preventing incorrect coupling by exchangeable elements on case or base comprising keying elements at different positions along the periphery of the connector

Definitions

  • the present invention relates to a contact-protected connector according to the preamble of claim 1.
  • the present invention particularly relates to a contact protected coaxial connector. Furthermore, the invention relates to a round connector and a coaxial circular connector forming this as well as a coaxial cable socket for receiving the circular connector.
  • connector-protected connector systems are already being used in the field of automotive applications and, in particular, in the field of airbag connectors.
  • EP 1 184 232 A2 shows a contact-protected connector system comprising a socket with contacts to be protected and a plug-in connector in the socket, wherein the contact protection is determined by a geometric condition on the height of the connector.
  • FIG. 6 Another embodiment of a contact-protected connector discloses the US 6,402,540 B1. There also a contact protection against shovel-like immersion is shown, which is achieved via inserted into the contact socket sufficiently high coding ribs. The length of the contacts is tuned to the length of the contact socket so that even when scoop-like immersion of the connector into the socket they are not affected and thus can not be damaged.
  • multi-pole coaxial connectors which are designed in particular as designed with respect to the central center axis symmetrical multipole connector, there is a particular need in terms of contact protection and security.
  • Coaxial contacts are known to be sensitive to mechanical damage and require special fitting accuracy when coaxial connectors and coaxial connectors are brought into contact with each other.
  • ohm connectors there is a risk that connector and socket are pushed together when mating in an unscheduled position possibly in this position, the connector also still rotates relative to the socket and thus damage the coaxial contacts.
  • a further problem is that, in particular with four-pole, symmetrically constructed, in particular symmetrically oriented with respect to the central plug-axis plugging geometry could be plugged in circular connectors in four mutually different positions. Ie. In addition to the damage to the coaxial contacts, it is also necessary to contact the plug-in connectors in a corresponding orientation, specifically in the intended orientation.
  • Object of the present invention is therefore to provide a connector system, in particular a connector system with coaxial contacts, which can be securely plugged together in the correct orientation and the mating and connecting the connector damage or even contact of the contacts is prevented.
  • the object is to provide a connector from male and female connectors mentioned above, which has a seal, so that the plug is sealed in the inserted state sufficiently against environmental influences.
  • Fig. 1 shows a section through a connector according to the invention
  • Fig. 3 is a perspective top view of the socket body in Fig. 2 from the right, i. on the mating side of the socket body;
  • Fig. 4A is a side view of a coaxial female contact element
  • Fig. 4B is a side view of a coaxial pin contact element
  • FIG. 5 shows a section through a two-part pin body in its assembled state of two parts.
  • Fig. 6 is a perspective view of the pen body of Figure 5 from its mating side.
  • FIG. 7 shows a section through the coaxial circular connector, similar to FIG.
  • FIG. 8 shows a perspective view of the coaxial circular connector of FIG. 7, specifically from the plug-in side located on the left in FIG. 7;
  • Fig. 9 is a schematic plan view of a stop surface 29 of the
  • the socket body The socket body
  • FIG. 10 is a schematic partial front view of the plug-in sleeve 200
  • FIG. 1 the view as shown in Figure 2 but adjacent to the coaxial circular connector of FIG. 7;
  • FIG. 1 the view as shown in Figure 7 but adjacent to the socket body of Figure 2.
  • FIG. 1 3-15 views representing different insertion depths, wherein the state of FIG. 1 5 corresponds to the state of FIG. 1.
  • the drawing shows an exemplary embodiment of a coaxial circular connector 10 according to the invention with integrated coaxial or coaxial contact elements 1 3, 14.
  • the coaxial circular connector 10 has a coaxial cable socket according to the invention (short: socket) 11 and a coaxial circular connector (short: plug connector or simply plug) 12 according to the invention.
  • socket 1 0 and connectors or simply "plug" 1 2 are used.
  • each socket contact element 14 is arranged in the socket 1 1 .
  • a plurality of coax - pin contact elements 13 are arranged in the connector 12 .
  • Each female contact element 14 ends plugged in a female sleeve 64 which surrounds a female contact 164.
  • each pin contact element 163 terminates plug-in in a pin sleeve 63 which surrounds a pin contact 63.
  • the inner diameter of the pin sleeve 63 is slightly smaller than the inner diameter of the sleeve sleeve 64, so that during the insertion process, the pin sleeve 63 can be inserted into the sleeve sleeve 64 contacting.
  • the socket contact 164 has an opening into which the pin contact element can be inserted in contact.
  • the inventive design of the cable bushing 1 1 and the connector 12 achieved that even with the use of multiple coax contact elements 13, 14, in particular in the connectors according to DIN IEC 61076_2_106 damage to the Koax Kontak- te, d .h.
  • Coax socket contacts 164 and the coax pin contact 164 is excluded.
  • the bushing 1 1 essentially has the following: a preferably one-piece bushing body 1 5, a bushing bushing (bushing bushing) 1 7 receiving the bushing body 1 5 and fastening means for fastening the bushing body 1 5 to the bushing screw bushing 1 7. a) The socket body 15
  • the socket body 1 5 is - see.
  • Figure 2 elongated and has substantially the shape of a circular cylinder with a longitudinal axis.
  • four identical longitudinal bores 20, 21, 22, 23, each of which serves to receive one of the coax female contact elements 14, are formed in the socket body 1 5, which is preferably made of plastic, running parallel to the longitudinal axis ⁇ .
  • the socket body 1 5 forms the plug side, a preferably horizontal and perpendicular to the insertion direction stop surface or Sliding surface 29, for the plug 12 and preferably for a still to be described plug end face 90 of a plug or socket 200.
  • the sliding or abutment surface 29 ie the plug-side end face of the socket body 15 is cut by the KodierausEnglishisme 35 to 39.
  • Each of the longitudinal bores 20-23 forms a plug-side arranged plug-in opening 24 and opposite thereto a connection opening 25th
  • Each of the longitudinal bores 20-23 has different diameter hole sections A1, A2 and A3.
  • the bore portion A3 has the largest diameter D3.
  • the bore portion A1 has a slightly smaller diameter D1 compared to D4 and the bore portion A2 has a diameter D2 which lies between the diameters D1 and D3.
  • the socket body 15 forms on its outer circumference three sections L1 to L3, namely a middle section L1 which separates the terminal section L2 from the plug section L3. All sections L1-L3 essentially have a circular cylinder surface. All sections L1-L3 are cut through by a longitudinal groove 31 extending over the entire length of the socket body 15, as can be seen in FIG.
  • the outer diameters of sections L1 and L3 are the same.
  • the section L1 has a larger diameter than L2, L3 and forms an annular projection 30.
  • a plurality of coding means in the form of coding recesses 35-39 are provided.
  • the coding recesses 35-39 all extend parallel to the longitudinal axis ⁇ of the socket body 15 up to a ring-shaped end face 310 formed by the annular projection 30.
  • the individual coding elements Sections 35-39 are distributed around the circumference of section L3 and preferably have different shapes.
  • the coding recess 35 forms a circular segment in cross section and the coding recesses 36, 37 and 39 are radial sectors in cross section, which preferably have different lengths extending in the circumferential direction. b) The bushing sleeve 17
  • the bushing sleeve 17 (see Figure 1) is preferably made of metal and is attached to the bushing body 1 5.
  • the bushing sleeve 17 has a plug 12 indicative to the end of contact 1 71 and opposite to a terminal end 1 72nd
  • the bushing 17 passing through the hole 1 74 has - see. Fig. 1. - At least three different diameters, so that an end face or end stop surface 31 0 is formed. Further, at a transition from a slightly larger diameter near the terminal end 172 to a slightly smaller diameter in the direction of the contact end 171, a stop surface 1 73 for an end face or end stop surface 31 0 of Buchse body 1 5 formed.
  • the socket body 1 5 is rotatably mounted in the position shown in Fig. 1 in the serving for fastening with plug 1 2 Buchsenschraubhülse 1 7.
  • the Buchsenschraubhülse 1 7 has adjacent to its contact end 1 71 a mecanicgenwinde 1 29. At its contact end 1 71 the Buchsenschraubhülse 1 7 also forms a bead 44.
  • the internal thread 1 29 extends in the region of an inner surface 45 of the female sleeve 1 7.
  • the coax - female contact element 14 is a total of a preferably made of metal tubular structure which has five sections with the Part has different diameters.
  • the connecting end 143 forming portion F1 has the largest diameter K1
  • the subsequent section F2 has a diameter K2 similar to the diameter K1.
  • the subsequent to the portion F2 F3 section has a diameter K3 is smaller than the diameter of K2 and the subsequent waste ⁇ F4 section has a diameter K4 is smaller than the diameter K3.
  • the smallest diameter portion F4 forms on the outer circumference elastic locking arms 140 made of the material forming the portion F4.
  • section F5 has a diameter K5 slightly larger than K4 and further forms a contact end 142 of the female contact element 14.
  • a stop surface 144 is formed, which, compare Figure 2, when replacing the contact element 14 in the Longitudinal bore 20 comes to the stop surface 27 to the stop.
  • the tubular body of the female contact element 14 ends the contact socket 320 seen in Figure 3 which is surrounded by a contact wall 141 in the section F5.
  • the connector (plug) 12 has:
  • a plug or plug sleeve 200 having a cavity 201 for receiving a pen body 16;
  • connecting or fastening sleeve 18 preferably a threaded sleeve, which surrounds the plug-in sleeve 200.
  • the threaded sleeve 18 has two sections V1 and V2.
  • the portion V1 has a smaller diameter than the portion V2, so that a stepped cavity or hole 201 is formed, in which the socket 200 is seated.
  • the fferverriegelungshülse 18 forms for receiving the receptacle 200th a stepped cavity or bore 301, wherein the diameter of the cavity 301 in the portion V1 is smaller than in the portion V2.
  • the plug-in sleeve 200 accordingly has a smaller outer diameter in the region of the bore in the section V1 and a larger diameter in the section V2.
  • the screw sleeve 1 80 has an external thread 321, which can be screwed into a plug-in internal thread of the bushing screw sleeve 17.
  • the wall thickness of the preferably made of metal threaded sleeve 1 8 is substantially the same in the two sections V1 and V2, but the section V1 is arranged offset radially inwardly relative to the section V2.
  • an outer periphery 321 is formed in areas of V1.
  • the connecting sleeve 1 8 is rotatably arranged with a small axial play.
  • the plug-in sleeve 200 is preferably made of metal and has (see Figures 7 and 8) on its inner circumference in a radial position an axially extending rib 70 which extends over almost the entire length of the sleeve 200 from the contact side end 86 to the terminal side end 87.
  • This rib 70 engages with a groove 60 formed in the two-part pin body 16 so that the pin body 16 is not substantially rotatable relative to the socket 200.
  • the plug-in sleeve 200 has (see FIG. 1) two plug-in sleeve sections S1 and S2.
  • the section S 1 has a smaller outer diameter than the section S2.
  • the circular cylindrical inner surface of the portion S1 has a smaller inner diameter than the circular cylindrical inner surface of the portion S2.
  • the plug sleeve 200 forms at its contact side end 86 coding elements preferably in the form of Kodiervorsprüngen 76-79 which protrude from the inner wall of the sleeve 200 radially inwardly and are intended to come with the KodierausEnglishungen 35-39 of the female body 15 into engagement.
  • the coding protrusions 76-79 and also the coding portion 71 formed by the rib portion 71 have cross-sectional shapes complementary to the respective cross-sectional shapes of the associated coding recesses 35-39.
  • the coding projections 71 and 76-79 preferably extend in the axial direction only about a third of the length of the bore 201 of the receptacle 200.
  • this forms a plug sleeve end face 97, which has a mating face 90 and guide surfaces 73 has, which latter are set back slightly opposite the plug end face 90.
  • the connector sleeve 18 is rotatable on the connector sleeve 200 and slightly displaced back and forth but not removable mounted.
  • the two-part pin body 1 6 is shown in detail in Figure 6 in section and in a perspective view in Figure 7.
  • the pin body 16 has 4 tubular longitudinal noses, each in the formed by the socket body 15 holes 20 in consequence of their slightly smaller Outside diameter fit.
  • the coax pin contact elements 84 are arranged within cavities 245 of the pen body.
  • the pin body 16 consists of a pin body connection part 51 and a pin body plug part 52.
  • the connection part 51 and the plug part 52 are mit- locked each other.
  • connector-side and plug-part-side locking elements 158, 600 are used.
  • the invention achieves precise contact of the coaxial socket contacts 164 and the coax pin contacts 163.
  • the invention provides several, preferably five, coding elements which are also of different design.
  • the coding elements provided on the strip side are set back somewhat, the coaxial contacts being positioned so that they do not undergo any damage during the rotary movement.
  • the coaxial round plug connection 10 is achieved in that the plug connector 12 is placed on the cable bushing 1 1, the lying in a plane (dashed in Filo and 73), formed by the plug-side coding 76 - 79. Plug guide surfaces, encountered on the socket sliding surface 29.
  • the alignment position is then reached when the corresponding coding match each other, in which case the plug enters the socket 1 1, and to a certain depth.
  • the depth is determined in the embodiment in that the front threads of the mounting sleeve with the front threads of the cable bushing collide.
  • the connecting sleeve 18 is rotated, that is screwed into the cable socket, wherein the plug body and the socket body are already aligned, the socket and plug contacts 163, 164 finally come into connection.
  • the plug connector 12 If, therefore, the plug connector 12 is to be inserted into the socket 11 in order to achieve the plug connection shown in FIG. 12 moves to the socket 1 1 out. This axial movement comes to an end when the guide end surfaces 73 impinges on the bushing and socket stop surface 29, unless just coincidentally the coding elements 76-79 and 35-39 are in alignment.
  • the user can then reach the radial position encoded by coding recesses and coding elements by turning the connector 12, the guide end faces 73 sliding on the socket stop surface 29 until the aligned position is reached, the axial alignment of socket 1 1 and connector 1 2 during the search Rotation is maintained.
  • the alignment is achieved by the engaging CodierausEnglishept and coding, enter the ringförmin- gene longitudinal lugs 160 of the pin body 16 in the corresponding longitudinal bores 20-23 and preferably reach approximately the position shown schematically in Figure 3 in which preferably the coaxial contact sockets 64th not yet engaged with the corresponding coaxial pin contacts. These preferably only come into engagement when the plug-in sleeve 200 is moved even further into the position shown in FIGS. 1 and 1 5 by turning the locking nut 300.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

L'invention concerne un connecteur rond à contacts protégés, comprenant une prise femelle avec un réceptacle de contacts femelles équipé de contacts femelles coaxiaux et un manchon de prise femelle dans lequel est logé le réceptacle de contacts femelles, lequel réceptacle de contacts femelles présente plusieurs encoches de détrompage, ainsi qu'une fiche mâle qui présente un réceptacle de contacts mâles multipolaires équipé de contacts mâles coaxiaux et qui s'étend dans le manchon qui entoure la fiche mâle, lequel manchon de fiche mâle comporte au moins trois nervures (ou saillies) de détrompage correspondant aux encoches de détrompage formées sur sa circonférence intérieure dans l'espace de réception de la fiche mâle. Chacune de ces nervures de détrompage au nombre de trois au moins forme une surface de guidage à son extrémité côté embrochage, lesdites surfaces formant ensemble une surface d'appui pour la face frontale faisant fonction de butée du manchon de prise femelle, et les surfaces de guidage s'étendent dans un plan commun de telle sorte que, lorsque la fiche mâle est embrochée dans la prise femelle, sa face frontale est en appui sur les surfaces de guidage et, en faisant tourner la face frontale sur les surfaces de guidage, la fiche mâle peut être amenée dans une orientation dans laquelle les nervures de détrompage peuvent s'enfoncer dans les encoches de détrompage correspondantes, permettant ainsi son embrochage avec la prise femelle.
PCT/EP2012/003706 2011-09-09 2012-09-05 Connecteur à contacts protégés WO2013034286A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201280043128.5A CN103782456A (zh) 2011-09-09 2012-09-05 保护触点的插塞连接器
JP2014528894A JP6329071B2 (ja) 2011-09-09 2012-09-05 同軸円形差込みコネクタ
EP12769596.3A EP2754211B9 (fr) 2011-09-09 2012-09-05 Connecteur à contacts protégés

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011113062.8 2011-09-09
DE102011113062A DE102011113062A1 (de) 2011-09-09 2011-09-09 Kontaktgeschützter Steckverbinder

Publications (1)

Publication Number Publication Date
WO2013034286A1 true WO2013034286A1 (fr) 2013-03-14

Family

ID=47002813

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/003706 WO2013034286A1 (fr) 2011-09-09 2012-09-05 Connecteur à contacts protégés

Country Status (5)

Country Link
EP (1) EP2754211B9 (fr)
JP (1) JP6329071B2 (fr)
CN (1) CN103782456A (fr)
DE (1) DE102011113062A1 (fr)
WO (1) WO2013034286A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016079189A1 (fr) * 2014-11-18 2016-05-26 Hirschmann Automotive Gmbh Codage de position multiple d'un connecteur à fiches
CN107305984A (zh) * 2016-04-25 2017-10-31 德尔福国际业务卢森堡公司 具有端子居中系统的电连接器
TWI752409B (zh) * 2019-03-26 2022-01-11 日商廣瀨電機股份有限公司 連接器裝置及連接器

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JP2016146590A (ja) * 2015-02-09 2016-08-12 日本放送協会 偏分波器、及び、コネクタ装置
CN105610004B (zh) * 2015-09-29 2018-07-06 中航光电科技股份有限公司 一种rj45插头壳体及其引导支架
DE102016106829A1 (de) * 2016-04-13 2017-10-19 Amad Mennekes Holding Gmbh & Co. Kg Steckvorrichtung, insbesondere für Kühlcontainer
DE102016116081A1 (de) * 2016-08-29 2018-03-01 Kathrein-Werke Kg Halte- und/oder Befestigungsrahmen, der an bzw. in einer Mobilfunkantenne und/oder an bzw. in einem Elektronik- und/oder Filtermodul ausgebildet oder daran befestigbar ist, sowie eine dazugehörige Mobilfunkantenne
CN107069324B (zh) * 2017-02-23 2019-07-26 中航光电科技股份有限公司 一种圆形插头连接器及插座连接器及连接器组件
DE102017115175A1 (de) 2017-07-06 2019-01-10 Brückner Maschinenbau GmbH & Co. KG Gleitelement insbesondere für eine Reckanlage und/oder Transportkette sowie eine zugehörige Reckanlage oder Transportkette
DE102018101431A1 (de) 2018-01-23 2019-07-25 Neutrik Ag Steckverbindung
EP3855531A4 (fr) * 2018-11-30 2022-07-06 Murata Manufacturing Co., Ltd. Batterie secondaire
BE1027151B1 (de) * 2019-03-29 2020-10-26 Phoenix Contact Gmbh & Co Steckverbinder mit einem als Gussteil ausgebildeten Kontaktierungselement

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EP1289073A1 (fr) * 2001-08-27 2003-03-05 Compagnie Deutsch GmbH Connecteur électrique
US20090104801A1 (en) * 2007-10-19 2009-04-23 Mark Da Silva Grounded connector

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016079189A1 (fr) * 2014-11-18 2016-05-26 Hirschmann Automotive Gmbh Codage de position multiple d'un connecteur à fiches
CN107305984A (zh) * 2016-04-25 2017-10-31 德尔福国际业务卢森堡公司 具有端子居中系统的电连接器
EP3240117A1 (fr) * 2016-04-25 2017-11-01 Delphi International Operations Luxembourg S.à r.l. Borne de connecteur électrique avec système de centrage
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CN107305984B (zh) * 2016-04-25 2019-06-07 德尔福国际业务卢森堡公司 具有端子居中系统的电连接器
TWI752409B (zh) * 2019-03-26 2022-01-11 日商廣瀨電機股份有限公司 連接器裝置及連接器

Also Published As

Publication number Publication date
DE102011113062A1 (de) 2013-03-14
EP2754211B9 (fr) 2018-04-11
JP2014526772A (ja) 2014-10-06
EP2754211A1 (fr) 2014-07-16
EP2754211B1 (fr) 2017-11-22
CN103782456A (zh) 2014-05-07
JP6329071B2 (ja) 2018-05-23

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