KR101959106B1

KR101959106B1 - Electrical connection system

Info

Publication number: KR101959106B1
Application number: KR1020157012375A
Authority: KR
Inventors: 장 파브르; 질 슈미트
Original assignee: 앱티브 테크놀러지스 리미티드
Priority date: 2012-10-15
Filing date: 2012-10-15
Publication date: 2019-03-15
Also published as: CN104823328B; KR20150074033A; WO2014060788A1; EP2907199A1; CN104823328A; EP2907199B1

Abstract

The present invention relates to an electrical connection system comprising: a cable having at least two electric wires (4) having a front end (21); a receiving portion (9a) to which the front end (21) of the electric wire (4) A shielding portion 8 surrounding the receiving portion 9a of the electrical connector 12; a sealing sleeve 2 extending between the electrical wire 2 and the electrical connector 12; A common shielding element 3 surrounding the sealing sleeve 2 and a collar extending sealingly through the sealing sleeve 2 to provide an electrical connection between the shielding part 8 and the shielding element 3. [ (1).

Description

[0001] ELECTRICAL CONNECTION SYSTEM [0002]

The present invention relates to an electrical connection system. More particularly, the present invention relates to an electrical connector and an electrical connection system between the cable, such as those used in automobiles, including bundles of wires.

This electrical connector is intended to accommodate two or more wires, and an electrical shield is provided surrounding the end of the wire housed in the electrical connector. Typically, an electrical shield consisting of a grounded electrically conductive portion is a means of preventing leakage of wire outer / inner electromagnetic interference and a means of protecting the signal carried by these wires.

Also, an isolator must be installed between them to prevent any contact between the wire and the electrical shield.

When connecting two unshielded wires, special measures are required. This electrical connection requires a shield to prevent electromagnetic interference where there is a connection between the cable and the receptacle of the connector. To this end, an electrically conductive sheath for shielding the wire bundle may be used. By assembly, the shielding continuity of the cable and the electrical connector can be achieved.

A shielded electrical connector is known from JP2008288021A for fastening a common shielding enclosure to a conductive shield shell arranged on an electrical connector using a collar portion. This particular configuration is shown in FIG. The collar portion includes an outer ring and an inner ring. The inner ring is integrally tapered to pressurize and secure the shielding sheath to the shielding sheath. The cover is screwed onto the shielding sheath to ensure a tight grip on the collar portion and to secure the shielding sheath to the shielding sheath.

Nonetheless, in recent multi-application applications, it has been found that not only the provision of shielding for electrical connections, but also the effect on sealing of such connections, which can prevent the penetration of moisture and / or foreign matter into the electrical connections while maintaining the shielding properties And it is required to provide a low-cost countermeasure.

The present invention helps solve these drawbacks.

To this end,

A cable with at least two wires having a front end,

An electrical connector having a receptacle portion to which the front end of the electric wire is connected,

A shield surrounding the receptacle of the electrical connector,

A sealing sleeve extending between the wire and the electrical connector,

A common shielding element surrounding the sealing sleeve, and

And a collar portion sealingly extending through the sealing sleeve to provide an electrical connection between the shield and the shielding element.

With these configurations, a simple and reliable sealed electrical connection is provided without affecting any of the required functions. Thus, there is provided a low maintenance, low maintenance, time-consuming, low-cost electrical connection with low leakage of inner / outer electromagnetic interference of the wire.

Any embodiment of an electrical connection system with a shield as described above may be used in an assembly comprising any electrical connection system and complementary arrangement of the electrical connection systems described above.

Additional information will be provided later in the description.

In some embodiments, one of ordinary skill in the relevant art can also use one or more features of the claims, alone or in combination. Of course, various features, alternatives, and / or embodiments of the present invention may be combined with each other in various configurations to the extent that they are compatible or not mutually exclusive.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to embodiments of the invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout. The invention will be better understood, and other features and advantages will become apparent.

Figure 1 shows a shielded electrical connector assembly according to the state of the art.
2 shows an exploded front perspective view of an electrical connection system according to the invention;
3 shows a front perspective view of the electrical connection system as shown in Fig. 2. Fig.
4 shows a front perspective view of the inner shielding element of the electrical connection system according to the invention.
5 shows a front perspective view of the sealing sleeve and the metal shielding element with the conductive plastic collar part of the electrical connection system according to the invention.
6 is a front detailed cross-sectional view along line VI-VI of Fig. 4 of the electrical connection system according to the present invention; Fig.
7 is a side detail cross-sectional view along line VII-VII of Fig. 4 of the electrical connection system according to the invention; Fig.
8 is a detailed view of the electrical connection system as shown in Fig.
9 shows a part of the locking cam of the electrical connection system according to the invention.
Figure 10a shows the front end of the wire according to the invention.
- Fig. 10B shows the construction of the wire according to the invention.
11 shows a tie of a shielding element according to the invention.

It should be noted that structural and / or functional elements common to other embodiments in the figures may have the same reference character. Thus, unless otherwise stated, these elements have the same structure, dimensions, and material properties.

Figure 1 illustrates a shielded electrical connector assembly 100 according to the state of the art. The shielded electrical connector assembly 100 includes a conductive shielding sheath 104 mounted to the connector housing 102, a shielding braid 106 covering the shielding sheath 104, an outer ring 110, Includes a ring assembly 108 that includes a shield braid 106 to fasten the shield braid 106 to the shield sheath 104 and a cover 112 that is threaded into the shield sheath 104 to perform fastening.

2 shows an exploded front perspective view of an electrical connection system or a hermetically shielded electrical connector according to the invention.

Such an electrical connection system comprises two main parts:

An electrical connector 12 suitable for coupling to a complementary device not shown, comprising: a connector, as shown in Fig. 2 without a terminal, in which at least two electric wires 4 can be received;

- a sealing shield (13) which provides a sealing and shielding protection for the electrical connection between the wire (4) and the electrical connector (12).

The electrical connector (12) includes a receiving portion (9) to which the electric wire (4) is connected. And may further include a front end extension, advantageously suitable for being coupled to the complementary device, comprising an interfacial seal 10 and an individual seal cap 11.

The receptacle 9 and the front end extension of the electrical connector 12 are received in the shield 8. Preferably, the shield 8 is made of a metal material. For example, the shield 8 includes two curved metal shells 8a and 8b joined together. Preferably, the curved metal shells 8a and 8b are similar. The shield 8 provides shielding protection against electromagnetic interference at the connection between the electrical connector 12 and the wire 4 and from / to the outside of the receptacle 9.

The shield 8 is electrically conductive. The shield 8 also extends from the rear portion 9a of the receptacle 9 to the front end extension of the electrical connector 12.

The receptacle 9 and the front end extension of the electrical connector 12, along with the shield 8, are typically protected by an outer cover 7.

The outer cover 7 includes two types of protrusions, namely a first protrusion 16 and a second protrusion 18, which can be observed in Fig.

The first projection 16 is configured to cooperate with the opening 17 of the sealing sleeve 2 to assemble the outer cover 7 and the sealing sleeve 2 of the electrical connector 12.

The second projection 18 is designed to cooperate with the notch 20 of the locking mechanism 6. The locking mechanism 6 enables the interaction between the slider 5 and the outer cover 7 to assist in the assembly of the connector 12 and the mating connector not shown. The locking mechanism 6 may preferably be a locking cam 6. [

The locking mechanism 6 is a matching assist system directly related to the present invention and is thus optional.

The slider 5 may cooperate with other complementary devices or electrical connectors. In a particular embodiment, the locking mechanism 6 can perform a rotational movement with respect to the second projection 18. [

In the embodiment shown in FIG. 9, the locking cam 6 includes a toothed protrusion 19 cooperating with the toothed rack of the mating electrical connector or complementary device. In this way, movement from the pre-assembly stage to the assembled position and vice versa can be easily realized.

Fig. 3 shows a front perspective view of the electrical connection system as shown in Fig. More specifically, Figure 3 shows a completed assembly without a complementary device or electrical connector. The electrical connector (12) is configured to receive a cable comprising at least two wires (4).

Fig. 10a shows the front end 21 of the wire 4 according to the invention. The front end 21 of the wire 4 is configured to be received in each holder of the receiving portion 9 of the electrical connector 12. [

Fig. 5 shows a front perspective view of the sealing sleeve 2 and the metal shielding element together with the collar portion 1 of the electrical connection system according to the invention. Preferably, the collar portion 1 is made of a conductive plastic material.

Each of the wires 4 includes an electrically conductive core 22 and an insulating layer 23 surrounding the electrically-conductive core 22, as shown in Fig. 10B. However, the wire 4 does not have a separate shield. It is desirable to provide a sealing connection to prevent material deterioration of some specific components due to penetration of moisture or other foreign matter into the internal space of the electrical connection. For this purpose, a sealing sleeve 2 is used. Preferably, the sealing sleeve 2 is made of an elastomeric material.

The sealing sleeve 2 extends between the receiving portion 9 of the electrical connector 12 and the electric wire 4. The sealing sleeve 2 comprises a plurality of openings 17 arranged along the longitudinal axis of the sealing sleeve 2. The opening 17 is designed to cooperate with the first projection 16 of the receiving portion 9 of the electrical connector 12.

In this way, the assembly between the electrical connector 12 and the sealing sleeve 2 is ensured. The front portion of the sealing sleeve 2 also includes a groove 24. Advantageously, the grooves 24 are provided along the entire periphery of the sealing sleeve 2. Preferably, the grooves 24 are also arranged perpendicular to the longitudinal axis of the sealing sleeve 2. The groove 24 includes a plurality of apertures 15 that are regularly arranged with respect to the longitudinal axis of the sealing aperture 15 sleeve 2. The opening 15 of the groove 24 is designed to receive the extension 14 of the collar portion 1.

Preferably, the groove 24 has a U-shaped cross section, that is, a portion perpendicular to the peripheral direction. The cross section of the groove 24 has a bottom wall facing radially and outwardly and two opposed sidewalls. The opening (15) is provided on the bottom wall of the groove (24). Preferably, the openings 15 do not extend to the side walls of the grooves 24.

The rear end of the sealing sleeve 2 also has at least two paths 25 suitable for receiving one wire 4, for example a cylindrical path 25, while maintaining the sealing performance of the sealing sleeve 2 .

In this embodiment, the wires 4 are not individually shielded. Conversely, a common shielding braid 3 is provided. Figure 4 shows a front perspective view of the common shielding element 3 inside the electrical connection system according to the invention. Preferably, the common shielding element 3 is a common shielding braid 3.

The common shielding element 3 surrounds the common sealing sleeve 2 from a portion of the cable to the rear portion 9a of the receiving portion 9 of the electrical connector 12. The common shielding element 3 is composed of an electrically conductive material. Which extends longitudinally beyond each end of the sealing sleeve 2. [

Figure 7 is a side detail cross-sectional view along line VII-VII of Figure 4 of the electrical connection system according to the invention. 8 is a detailed view of the electrical connection system as shown in Fig.

Electrical contact between the shielding portion 8 surrounding the receiving portion 9 of the electrical connector 12 and the common shielding element 3 is ensured by the collar portion 1.

The collar portion 1 is advantageously made of a flexible conductive elastomeric material which enables electrical connection between the shielding portion 8 of the connector 12 and the shielding element 3 via the sealing sleeve 2. [ More precisely the electrical connection between the sealing element 3 and the shield 8 through the sealing sleeve 2 is achieved by a collar portion 1 designed to pass through the opening 15 of the groove 24 of the sealing sleeve 2 (Not shown). The collar portion 1 is inserted into the groove 24 in such a manner as to provide continuous contact between the groove 24 of the sealing sleeve 2 and the collar portion 1.

Advantageously, the collar portion 1 is provided from a filled elastomer such as a filled silicone rubber. The collar portion 1 may be a band running along the circumferential direction.

The collar 1 has a bottom surface. The extension 14 projects radially from the bottom surface toward the longitudinal axis. When the collar portion 1 is inserted into the groove 24, the extension portion 14 is inserted with a slight clearance in each opening 15 and comes into contact with the shielding portion 8. The bottom surface of the collar portion 1 is placed in contact with the bottom wall of the groove 24 and this contact extends continuously along the entire periphery of the collar portion 1. [

FIG. 6 is a front detailed cross-sectional view along line VI-VI of FIG. 4 of the electrical connection system according to the present invention. The close connection of the shielding element 3 to the rear part of the shield 8 is realized by a tie 26 as shown in Fig. The ties 26 are made of a plastic material.

The tie 26 is configured to fasten the shielding element 3 together with the sealing sleeve 2 to the rear portion of the shield 8 of the electrical connector 12. Thus, a good coupling of the shielding element 3 surrounding the sealing sleeve 2 with respect to the shielding portion 8 is ensured. In this way, a sealed, shielded connection between the wire 4 and the electrical connector 12 is achieved.

Claims

An electrical connection system comprising:
A cable with at least two wires (4) having a front end (21)
An electrical connector 12 having a receptacle 9 to which the front end 21 of the wire 4 is connected,
A shield 8 surrounding the receptacle 9 of the electrical connector 12,
A sealing sleeve 2 extending between the wire 2 and the electrical connector 12,
- a common shielding element (3) surrounding the sealing sleeve (2), and
- a collar portion (1) sealingly extending through the sealing sleeve (2) to provide an electrical connection between the shield (8) and the shield element (3)
The sealing sleeve (2) is made of an elastomeric material.

The method according to claim 1,
Wherein the electrical wire (4) comprises an electrically conductive core (22) and an insulating layer (23) surrounding the electrically conductive core (22).

3. The method according to claim 1 or 2,
Wherein the front end (21) of the wire (4) comprises a terminal adapted to be received in a receiving portion (9) of the electrical connector (12).

An electrical connection system comprising:
A cable with at least two wires (4) having a front end (21)
An electrical connector 12 having a receptacle 9 to which the front end 21 of the wire 4 is connected,
A shield 8 surrounding the receptacle 9 of the electrical connector 12,
A sealing sleeve 2 extending between the wire 2 and the electrical connector 12,
- a common shielding element (3) surrounding the sealing sleeve (2), and
- a collar portion (1) sealingly extending through the sealing sleeve (2) to provide an electrical connection between the shield (8) and the shield element (3)
The shield (8) comprises two curved metal shells (8a, 8b) coupled to each other.

delete

3. The method according to claim 1 or 2,
Wherein the sealing sleeve (2) comprises a groove (24).

The method according to claim 6,
Wherein the groove (24) is installed along the entire periphery of the sealing sleeve (2).

The method according to claim 6,
Wherein the groove (24) of the sealing sleeve (2) comprises a plurality of openings (15).

9. The method of claim 8,
Wherein the openings (15) are regularly arranged with respect to the longitudinal axis of the sealing sleeve (2).

3. The method according to claim 1 or 2,
Wherein the collar portion (1) comprises an extension (14) adapted to engage an opening (15) in the groove (24) of the sealing sleeve (2).

3. The method according to claim 1 or 2,
Wherein the collar portion (1) is inserted into the groove (24) of the common sealing sleeve (2) to provide a continuous peripheral contact between the groove (24) of the sleeve (2) and the collar portion (1).

3. The method according to claim 1 or 2,
And a tie (26) for fastening the shielding element (3) to the electrical connector in common with the sealing sleeve (2).

3. The method according to claim 1 or 2,
Wherein the sealing sleeve (2) comprises a plurality of openings (17).

14. The method of claim 13,
Wherein the openings (17) are arranged symmetrically with respect to the longitudinal axis of the sealing sleeve (2).

14. The method of claim 13,
The opening (17) is designed to cooperate with the first projection (16) of the electrical connector (12).

3. The method according to claim 1 or 2,
The sealing sleeve (2) forms at least two paths (25) suitable for sealingly receiving one of the wires (4).

An electrical connection system comprising:
A cable with at least two wires (4) having a front end (21)
An electrical connector 12 having a receptacle 9 to which the front end 21 of the wire 4 is connected,
A shield 8 surrounding the receptacle 9 of the electrical connector 12,
A sealing sleeve 2 extending between the wire 2 and the electrical connector 12,
- a common shielding element (3) surrounding the sealing sleeve (2), and
- a collar portion (1) sealingly extending through the sealing sleeve (2) to provide an electrical connection between the shield (8) and the shield element (3)
The collar portion (1) is made of an electrically conductive elastomer material.

3. The method according to claim 1 or 2,
Wherein the common shielding element (3) is a shielding braid (3).