WO2010018428A1 - Sealed and shielded cable connector and connector assembly - Google Patents

Sealed and shielded cable connector and connector assembly Download PDF

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Publication number
WO2010018428A1
WO2010018428A1 PCT/IB2008/054473 IB2008054473W WO2010018428A1 WO 2010018428 A1 WO2010018428 A1 WO 2010018428A1 IB 2008054473 W IB2008054473 W IB 2008054473W WO 2010018428 A1 WO2010018428 A1 WO 2010018428A1
Authority
WO
WIPO (PCT)
Prior art keywords
electrical connector
shield shell
cable
connector
shield
Prior art date
Application number
PCT/IB2008/054473
Other languages
French (fr)
Inventor
Erwan Guillanton
Stéphane HERNANDEZ
Original Assignee
Fci
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 Fci filed Critical Fci
Priority to PCT/IB2008/054473 priority Critical patent/WO2010018428A1/en
Publication of WO2010018428A1 publication Critical patent/WO2010018428A1/en

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • H01R13/6591Specific features or arrangements of connection of shield to conductive members
    • H01R13/6592Specific features or arrangements of connection of shield to conductive members the conductive member being a shielded cable
    • H01R13/6593Specific features or arrangements of connection of shield to conductive members the conductive member being a shielded cable the shield being composed of different pieces
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • H01R13/6591Specific features or arrangements of connection of shield to conductive members
    • H01R13/65912Specific features or arrangements of connection of shield to conductive members for shielded multiconductor cable
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/84Hermaphroditic coupling devices
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • H01R13/6598Shield material
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00Structural 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
    • H01R9/03Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections
    • H01R9/05Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections for coaxial cables
    • H01R9/0518Connection to outer conductor by crimping or by crimping ferrule

Definitions

  • the present invention relates to an electrical cable connector and an electrical connector assembly comprising two electrical connectors intended to be mated to each other.
  • the present invention relates to sealed and shielded cable connectors.
  • connectors For many applications, and in particular for motorized vehicle applications, it is of critical importance to protect electrical contacts of connectors against environment and more particularly against dust, grease, corrosive gases and humidity. Indeed, for instance for automotive exterior or under-the-hood applications connectors are placed in such atmospheres which are well known for deteriorating the electrical contact quality between two electrical terminals.
  • cables and connectors can function satisfactorily in their electromagnetic environment without either introducing disturbances to that environment or to other devices or picking up from the environment and transmitting to other devices electromagnetic radiations.
  • a typical cable comprises a group of wires, a shield sheath wrapped around the group of wires, and advantageously an insulative sheath wrapped around the shield sheath.
  • a shield element must therefore be introduced in each electrical connector, for mating with each other during the mating of the electrical connector.
  • a goal of the invention is to ensure protection of the shield element. Another goal of the invention is to ensure sealing, in particular against water, between the two electrical connectors.
  • An object of the invention is an electrical connector according to claim 1.
  • Such a connector has the advantage that the electromagnetic shield can be enclosed in a sealed connector. Then the electrical contact between the shield of a connector and the shield of a counterpart connector is protected against the external environment as the contacts between the male and female terminals of the connector and its counterpart.
  • a connector according to claim 2 has the advantage that it does not complicate the assembly of the electrical connector.
  • a connector according to claim(s) 3, 6, 7, 8 and/or 9 has the advantage that it makes easier the shields manufacturing and assembly.
  • a connector according to claim 4 and/or 5 has the advantage that it provides for a good electrical continuity and very few and small openings. It improves the electromagnetic shielding.
  • figure 2 an exploded view of a first electrical connector of the electrical connector assembly of figure 1 ,
  • figure 3 an exploded view of a second electrical connector of the electrical connector assembly of figure 1 ,
  • FIG. 4 a tri-dimensional view of a shield sheath of the connector assembly
  • Each wire comprises a wire conductive core 24, to which a female terminal 38 is crimped, and a wire insulative sheath wrapped around the wire conductive core.
  • the cable 14 further comprises a conductive shield sheath 28 wrapped around the group of wires 20, and advantageously a cable insulative sheath 30 wrapped around the shield sheath 28.
  • the shield sheath 28 can be made e.g. out of braided sleeve or metal or metalized foil.
  • orientation terms front, rear, (7) will refer to the mating axis XX', orientated from the first connector 12 towards the second connector 16, in the process of being mated one with each other.
  • the outer housing 42 has a substantially cylindrical shape along the mating axis XX', and comprises a front end 42B defining a front opening 49, through which the terminal housing 43 is intended to be introduced into the outer housing
  • the first electrical connector 12 comprises a front skirt 54 for receiving the second electrical connector 16.
  • the front skirt 54 is fixed to the outer housing 42 and surrounds the front end 42B of the outer housing 42 and the front face 44 of the terminal housing 43.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

The electrical connector comprises an insulative outer housing (42; 242) having a front end (42B; 242B) and a rear end (42A; 242A) defining a cable opening (48; 248) for receiving a cable (14; 18), an insulative terminal housing (43; 243) placed at least in part into the front end (42B; 242B) of the outer housing (42; 242), comprising a front face (44; 244) and accommodating chambers (50; 250) for receiving conductive contacts (38; 238) of the cable (14; 18), the accommodating chambers (50; 250) leading to the front face (44; 244), and a tubular shield shell (86; 286) interposed between the outer housing (42; 242) and the terminal housing (43; 243), having a rear end (88; 288) intended to be connected to a shield sheath (28; 228) of the cable (14; 18) and a mating front end (90; 290).

Description

Sealed and shielded cable connector and connector assembly
The present invention relates to an electrical cable connector and an electrical connector assembly comprising two electrical connectors intended to be mated to each other.
More precisely, the present invention relates to sealed and shielded cable connectors.
For many applications, and in particular for motorized vehicle applications, it is of critical importance to protect electrical contacts of connectors against environment and more particularly against dust, grease, corrosive gases and humidity. Indeed, for instance for automotive exterior or under-the-hood applications connectors are placed in such atmospheres which are well known for deteriorating the electrical contact quality between two electrical terminals.
It is also of importance that cables and connectors can function satisfactorily in their electromagnetic environment without either introducing disturbances to that environment or to other devices or picking up from the environment and transmitting to other devices electromagnetic radiations.
A typical cable comprises a group of wires, a shield sheath wrapped around the group of wires, and advantageously an insulative sheath wrapped around the shield sheath.
In a connector assembly intended to connect two cables, the continuity of the shielding between the shield sheathes of the two cables must be achieved for the above mentioned reasons. A shield element must therefore be introduced in each electrical connector, for mating with each other during the mating of the electrical connector.
A goal of the invention is to ensure protection of the shield element. Another goal of the invention is to ensure sealing, in particular against water, between the two electrical connectors.
An object of the invention is an electrical connector according to claim 1. Such a connector has the advantage that the electromagnetic shield can be enclosed in a sealed connector. Then the electrical contact between the shield of a connector and the shield of a counterpart connector is protected against the external environment as the contacts between the male and female terminals of the connector and its counterpart. A connector according to claim 2 has the advantage that it does not complicate the assembly of the electrical connector.
A connector according to claim(s) 3, 6, 7, 8 and/or 9 has the advantage that it makes easier the shields manufacturing and assembly. A connector according to claim 4 and/or 5 has the advantage that it provides for a good electrical continuity and very few and small openings. It improves the electromagnetic shielding.
A connector according to the invention has the advantage that it provides a low cost submergible connector that is highly reliable and easy to assemble. Other features and advantages of the electrical connector corresponds to combinations of the features of the different claims as well as features mentioned in the specification. They will become apparent by reading the following description of a preferred embodiment of the invention. The description refers to the accompanying drawings, which comprise: - figure 1 : a cross section view of an electrical connector assembly according to the invention,
- figure 2: an exploded view of a first electrical connector of the electrical connector assembly of figure 1 ,
- figure 3: an exploded view of a second electrical connector of the electrical connector assembly of figure 1 ,
- figure 4: a tri-dimensional view of a shield sheath of the connector assembly,
- figure 5: a transverse cross section view of the connector assembly, when the first and second connectors are plugged. Referring to figure 1 , an electrical connector assembly 10 comprises a first electrical connector 12 for receiving a first cable 14, and a second electrical connector 16 for receiving a second cable 18. The first and second electrical connectors 12, 16 are intended to mate along a mating axis XX'. The first cable Referring to figures 1 and 2, the first cable 14 comprises a group 20 of wires
22, comprising at least one wire. Each wire comprises a wire conductive core 24, to which a female terminal 38 is crimped, and a wire insulative sheath wrapped around the wire conductive core. The cable 14 further comprises a conductive shield sheath 28 wrapped around the group of wires 20, and advantageously a cable insulative sheath 30 wrapped around the shield sheath 28. The shield sheath 28 can be made e.g. out of braided sleeve or metal or metalized foil. The first electrical connector
Referring to figures 1 and 2, the first electrical connector 12 has a general tubular shape extending along the mating axis XX'.
In the following description of the first electrical connector 12, orientation terms (front, rear, ...) will refer to the mating axis XX', orientated from the first connector 12 towards the second connector 16, in the process of being mated one with each other.
The first electrical connector 12 comprises an insulative outer housing 42 and a terminal housing 43, located into and detachable from the outer housing 42.
The outer housing 42 has a substantially cylindrical shape along the mating axis XX', and comprises a front end 42B defining a front opening 49, through which the terminal housing 43 is intended to be introduced into the outer housing
42, and a rear end 42A defining a rear cable opening 48 for receiving the first cable 14.
The first terminal housing 43 has a substantial parallelepiped shape with a front face 44 and defines receiving chambers 50 leading to the front face 44, each of which receiving one of the female contacts 38 of the first cable 14.
The first electrical connector 12 comprises a front skirt 54 for receiving the second electrical connector 16. The front skirt 54 is fixed to the outer housing 42 and surrounds the front end 42B of the outer housing 42 and the front face 44 of the terminal housing 43.
The first electrical connector 12 comprises a first front annular seal 56 mounted on the outer housing 42, inside the front skirt 54, for ensuring sealing with the second electrical connector 16. The first electrical connector 12 further comprises a first rear annular seal 58 disposed in the first cable opening 48 so as to ensure sealing between the first cable 14 and the first insulative housing 42.
The first shield shell Referring to figures 1 , 4 and 5, the first electrical connector 12 further comprises a first tubular shield shell 86 extending around the mating axis XX' and interposed between the outer housing 42 and the terminal housing 43.
The tubular shield shell 86 comprises a rear end 88 that is connected, e.g. crimped, to the shield sheath 28 of the first cable 14.
The tubular shield shell 86 further comprises a front end 90 that is located around the front face 44 of the terminal housing 43. The first front end 90 is hermaphroditic, so as to be able to mate with a identical hermaphroditic front end for ensuring shielding continuity In the illustrated example, the front end 90 is symmetrical with respect to the mating axis XX' and comprises a plurality of tabs 92 projecting frontward along the mating axis, and a plurality of flanges 94. The tabs 92 and flanges 94 are disposed circumferentially around the hermaphroditic front end 90, and, in such a way that the front end 90 is able to mate with an identical shield shell front end with each tab 92 leaning on a respective flange of the identical front end, and with each flange 94 bearing a respective tab of the identical front end.
Referring to figure 2, the first shield shell 86 is entirely made of two identical shield shells bands 86A, 86B. Each band 86A, 86B extends substantially along the mating axis XX' and around half a circumference around the mating axis XX'. Each first band 86A, 86B corresponds to the rotation of 180° of the other band 86A, 86B around the mating axis XX'.
In the illustrated example, each first shield shell band 86A, 86B has a "U" shape cross profile relative to the mating axis XX'.
The first electrical connector 12 comprises fixing means for fixing the first shield shell bands 86A, 86B to each other in a closed daisy chain arrangement, i.e. one shield shell band following the other around the mating axis XX', so as to form the tubular shield shell 86. The fixing means are integrated in the first shield shell bands 86A, 86B, i.e. all the elements of the fixing means are carried by the shield shell bands 86A, 86B. More precisely, the fixing means comprise first and second opposite fixing edges 96A, 96B, extending along the mating axis XX' and located respectively at the extremities of the "U" of the shield shell bands 86A, 86B. The first and second fixing edges 96A, 96B are intended to be fixed respectively to the first edge of the previous shield shell band and to the second edge of the next shield shell band of the closed daisy chain arrangement. In the illustrated example, the first fixing edge 96A of one of the shield shell bands 86A, 86B is intended to be fixed to the second fixing edge 96B of the other one of the shield shell bands 86A, 86B. In the illustrated example, the first fixing edge 96A comprises at least one lug
99A, and the second fixing edge 96B comprises at least one hole 99B for receiving a respective lug 99A.
Each first shield shell band 86A, 86B is advantageously made out from a single sheet of metal, by cutting and bending the sheet of metal. Alternatively, it is made out of casted metal, or metalized plastic, or charged conductive plastics.
Each shield shell 86A, 86B further comprises two opposite slits 101 A, extending perpendicularly to the axis XX'. The slits 101 A are intended to receive pins 101 B projecting from the terminal housing 43, in order to place the shield shells along the mating axis XX', with respect to the terminal housing 43. The second cable
The elements of the second cable 18 identical to those of the first cable previously described will not be described further and will have the same reference, only with the number 200 added.
The second cable 18 differs from the first cable 14 in that the contacts 238 are male contacts projecting frontward from the front face 244, and intended to be received in the female contacts 38.
The second shield shell
The second shield shell is identical to the first shield shell. The same references are used, only with the number 200 added. The second electrical connector
The elements of the second electrical connector identical to those of the first electrical connector previously described will not be described further and will have the same reference, only with the number 200 added.
In the following description of the second electrical connector 16 orientation terms (front, rear, ...) will refer to the mating axis XX', orientated from the second connector 16 towards the first connector 12, in the process of being mated with each other. The front skirt 254 of the second electrical connector 16 is intended to be mounted on the front end 42B of the first electrical connector 12, between the outer housing 42 and the front skirt 54. The front skirt 254 is intended to come into contact with the annular seal 56 so that the two outer housings 42, 242 define a sealed tube between the two cable openings 48, 248. The two terminal housings 43, 243 and the two shield shells 86, 286 are located into the sealed tube so as to be protected e.g. against dust, water, grease, etc. Shielding continuity
Once the first and second shield shells are mated, shielding continuity is realised between the first and second shield shells, and therefore between the first and second shield sheathes of the first and second cables. First these two shield sheathes are at the same electrical potential, and second the wires with terminals are inside a closed tubular shield with no or very limited openings so that electromagnetic radiation can not go through from or to the wires.
Some advantages of the invention
Because of the hermaphroditic end of the shield shell, the same tubular shield shell may be used in both the electrical connectors. Another advantage of hermaphroditic shield shells is the lower number of different parts which allows lower tooling and logistic costs.

Claims

1. Electrical connector (12; 16) comprising: an insulative outer housing (42; 242) having a front end (42B; 242B) and a rear end (42A; 242A) defining a cable opening (48; 248) for receiving a cable (14; 18), an insulative terminal housing (43; 243) placed at least in part into the front end (42b; 242B) of the outer housing (42; 242), comprising a front face (44; 244) and accommodating chambers (50; 250) for receiving conductive terminals (38; 238) of the cable (14; 18), the accommodating chambers (50; 250) leading to the front face (44; 244), a tubular shield shell (86; 286) interposed between the outer housing (42; 242) and the terminal housing (43; 243), having a rear end (88; 288) intended to be connected to a shield sheath (28; 228) of the cable (14; 18) and a mating front end (90; 290).
2. Electrical connector (12; 16) according to claim 1 , wherein the front end (90) of the shield shell (87) is hermaphroditic, so as to be able to mate with an identical hermaphroditic front end for ensuring shielding continuity.
3. Electrical connector (12; 16) according to claim 2, wherein the hermaphroditic front end (90; 290) is symmetrical with respect to a mating axis
(XX') of the electrical connector (12; 16).
4. Electrical connector (12; 16) according to claim 2 or 3, wherein the hermaphroditic front end (90; 290) comprises a plurality of tabs (92; 292) projecting frontward along the mating direction (XX') and a plurality of flanges (94; 294), wherein the tabs (92; 292) and the flanges (94; 294) are disposed circumferentially around the hermaphroditic front end (90; 290).
5. Electrical connector (12; 16) according to claim 4, wherein the flanges (94; 294) alternate with the tabs (92; 292) around the mating axis (XX').
6. Electrical connector (12; 16) according to any one of claims 1 to 5, wherein the shield shell (86; 286) comprises a group of identical shield shell bands (86A, 86B; 286A, 286B) comprising at least two shield shell bands, wherein the electrical connector (12; 16) comprises fixing means for fixing the shield shell bands (86A, 86B; 286A, 286B) to each other in a closed daisy chain arrangement, so as to form at least a tubular portion of the shield shell (86; 286).
7. Electrical connector (12; 16) according to claim 7, wherein the shield shell (86; 286) is entirely made of the shield shell bands (86A, 86B; 286A, 286B).
8. Electrical connector according to claim 6 or 7, wherein each shield shell band comprises first and second opposite fixing edges intended to be fixed respectively to the first edge of previous shield shell band and to the second edge of a next shield shell band of the closed daisy chain arrangement, the fixing means comprising the first and second fixing edges.
9. Electrical connector according to claim 8, wherein the first fixing edge comprises at least one lug (99A), and the second fixing edge comprises at least one hole (99B) for receiving the lug (99A).
10. Electrical connector according to any preceding claim, comprising a cable seal (58) for sealing the rear end of the housing and the cable, the shield shell being placed inside a cavity defined by the outer housing and the cable seal.
11. Electrical connector according to claim 10, comprising a outer housing seal (56) for sealing the connector to a counterpart connector, the outer seal being placed around the shield shell, for defining a sealed cavity housings of the connector and its counterpart connector when the connector and its counterpart connector are plugged together.
12. Electrical connector assembly (10) comprising: a first electrical connector (12) according to any one of claims 1 to 11 , and a second electrical connector (16) according to any one of claims 1 to 11 , the first and second electrical connectors (12;16) being intended to mate with each other, with the shield shell (86) of the first electrical connector (12) and the shield shell (286) of the second electrical connector (16) insuring shielding continuity.
13. Electrical connector assembly (10) according to claim 12, wherein the two outer housing (42; 242) define a sealed tube between the two cable openings (48; 248), and wherein the two terminal housings (43; 243) and the two shield shell (86; 286) are located into the sealed tube.
14. Electrical connector assembly (10) according to claim 12 or 13, wherein the shield shell (86) of the first electrical connector (12) and the shield shell (286) of the second electrical connector (16) are identical.
PCT/IB2008/054473 2008-08-14 2008-08-14 Sealed and shielded cable connector and connector assembly WO2010018428A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IB2008/054473 WO2010018428A1 (en) 2008-08-14 2008-08-14 Sealed and shielded cable connector and connector assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2008/054473 WO2010018428A1 (en) 2008-08-14 2008-08-14 Sealed and shielded cable connector and connector assembly

Publications (1)

Publication Number Publication Date
WO2010018428A1 true WO2010018428A1 (en) 2010-02-18

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2008/054473 WO2010018428A1 (en) 2008-08-14 2008-08-14 Sealed and shielded cable connector and connector assembly

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113161803A (en) * 2021-04-22 2021-07-23 东莞市信翰精密工业有限公司 Line end multicore waterproof connector

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4449778A (en) * 1982-12-22 1984-05-22 Amp Incorporated Shielded electrical connector
US4810210A (en) * 1987-02-12 1989-03-07 Hosiden Electronics Co., Ltd. Multipin connector
DE4004387A1 (en) * 1989-02-28 1990-08-30 Hosiden Electronics Co ELECTRICAL CONNECTOR

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4449778A (en) * 1982-12-22 1984-05-22 Amp Incorporated Shielded electrical connector
US4810210A (en) * 1987-02-12 1989-03-07 Hosiden Electronics Co., Ltd. Multipin connector
DE4004387A1 (en) * 1989-02-28 1990-08-30 Hosiden Electronics Co ELECTRICAL CONNECTOR

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113161803A (en) * 2021-04-22 2021-07-23 东莞市信翰精密工业有限公司 Line end multicore waterproof connector
CN113161803B (en) * 2021-04-22 2022-07-22 东莞市信翰精密工业有限公司 Line end multicore waterproof connector

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