CN220021827U

CN220021827U - High-voltage wire harness shielding structure

Info

Publication number: CN220021827U
Application number: CN202320951315.9U
Authority: CN
Inventors: 王超
Original assignee: Changzhou Jieyi Auto Parts Co ltd
Current assignee: Changzhou Jieyi Auto Parts Co ltd
Priority date: 2023-04-24
Filing date: 2023-04-24
Publication date: 2023-11-14
Anticipated expiration: 2033-04-24

Abstract

The utility model discloses a cable connector which comprises a base body, a grounding cable and at least one shielding cable, wherein one end of the grounding cable is at least partially connected in the base body, and the tail end of the grounding cable extending out of the base body is connected with a grounding terminal; the shielding cable consists of a first section and a second section at least partially extending into the base, the shielding cable comprises a conductor and a sheath layer from inside to outside, the first section further comprises a shielding layer and an insulating layer which are sequentially arranged outside the sheath layer, and the extension part of the shielding layer is electrically connected with the grounding cable; this patent is all grounded with the both ends of high voltage shield pencil, can greatly improve shielding effect, reduces the electromagnetic interference who probably causes automobile body equipment, promotes driving experience.

Description

High-voltage wire harness shielding structure

Technical Field

The utility model relates to the field of automobile wire harnesses, in particular to a high-voltage wire harness shielding structure.

Background

Along with the continuous improvement of people's environmental awareness, new energy electric automobile has obtained the development of the great deal because of its advantages such as no exhaust emission, no pollution to the environment. The wire harness in the automobile is mainly divided into a high-voltage wire harness for transmitting electric energy and a low-voltage wire harness for transmitting signals according to the voltage transmitted by the wire harness, and the high-voltage wire harness can cause interference to adjacent equipment due to higher voltage and current transmitted by the wire harness. Therefore, the high-voltage wire harness is mainly made of a shielding cable with a shielding layer to reduce interference, the shielding layer is mainly made of nonmagnetic materials such as copper, aluminum and the like, the effect of the shielding layer is mainly generated not by reflection and absorption of an electric field and a magnetic field by a metal body, but by grounding of the shielding layer, and the shielding effect is directly influenced by different grounding modes. The common shielding mode in the current market is to ground one end of a shielding cable and suspend the other end of the shielding cable, the shielding effect is not thorough enough, and interference to adjacent equipment can be caused in the transmission process.

Disclosure of Invention

The utility model aims to provide a high-voltage wire harness shielding structure, wherein one end of a wire harness far away from a connector is normally grounded along with a vehicle-mounted charger end, the other end of the wire harness close to the connector is connected with an outgoing line, and the outgoing line is grounded, so that the grounding of the two ends of the wire harness is realized, and the electromagnetic interference of the wire harness to adjacent equipment is reduced.

The high-voltage wire harness shielding structure comprises a base body, a grounding cable and at least one shielding cable, wherein one end of the grounding cable is at least partially connected in the base body, and the tail end of the grounding cable extending out of the base body is connected with a grounding terminal;

the shielding cable comprises a first section and a second section at least partially extending into the base body, the shielding cable comprises a conductor and a sheath layer which are arranged from inside to outside, the first section further comprises a shielding layer and an insulating layer which are sequentially arranged outside the sheath layer, and an extension part of the shielding layer is electrically connected with the grounding cable.

The outside cover of first section with the junction of second section is equipped with first seal cover, the lateral wall of first seal cover is provided with the first sleeve pipe that link up, extension at least partially holds in first sleeve pipe.

The cable also comprises switching cables which are in one-to-one correspondence with the shielding cables, one end of each switching cable stretches into the first sleeve and is overlapped with the extending part, and the other end of each switching cable is connected with the grounding terminal.

The grounding terminal comprises a cylindrical part, the grounding cable and the adapter cable extend into the cylindrical part and are electrically connected with the grounding terminal, and a second sealing sleeve is sleeved outside an opening of the cylindrical part.

The outside cover of patch cord is equipped with pyrocondensation micelle, pyrocondensation micelle is located the tube-shape portion outside and cladding in inside the second seal cover.

The outside cover of earth connection cable with the patch cord is equipped with at least one fixed buckle.

The second section and the part connected with the second section extend into the seat body.

And a third sealing sleeve is sleeved at the joint of the extension part and the grounding cable.

The inside of the base is provided with a shielding shell which is sleeved with a part of the shielding cable, and the extension part is electrically connected with the shielding shell.

The first sealing sleeve and the second sealing sleeve are double-wall heat shrink tubes; and a third sealing sleeve sleeved at the joint of the extension part and the grounding cable is a single-wall thermoplastic pipe.

This patent has following technical effect:

1. both ends of the high-voltage shielding wire harness are grounded, so that the shielding effect can be greatly improved, electromagnetic interference possibly caused to vehicle body equipment is reduced, and driving experience is improved.

2. One ends of the shielding cables close to the base are connected to the same grounding cable, so that the number of the grounding cables can be reduced, and the cost is reduced.

3. According to different installation requirements, the grounding part of the shielding cable can be arranged outside the seat body and also can be arranged inside the seat body, so that the applicability of the structure is improved.

Other features of the present utility model and its advantages will become apparent from the following detailed description of exemplary embodiments of the utility model, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description, serve to explain the principles of the utility model.

Fig. 1 is a schematic diagram of example 1 of this patent.

Figure 2 is a cross-sectional view of the first gland of figure 1.

Figure 3 is a cross-sectional view of the second gland of figure 1.

Fig. 4 is a cross-sectional view A-A of fig. 3.

Fig. 5 is a schematic diagram of embodiment 2 of this patent.

Fig. 6 is a cross-sectional view of fig. 5.

Fig. 7 is a schematic view of a shielding shell structure.

The figures are marked as follows:

1. seat body

2. A shielded cable 21, a conductor 22, a sheath layer 23, a shielding layer 231, an extension 24, an insulating layer 25, a first section 26, a second section

3. The cable assembly comprises a ground cable 4, a first sealing sleeve 41, a first sleeve 5, an adapter cable 6, a ground terminal 61, a cylindrical part 7, a second sealing sleeve 8, thermal shrinkage rubber particles 10, a third sealing sleeve 11 and a shielding shell.

Detailed Description

Various exemplary embodiments of the present utility model will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise.

The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses.

Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.

Example 1

As shown in fig. 1-2, this embodiment provides a high-voltage cable bundle shielding structure, which includes a base 1, a grounding cable 3 and at least one shielding cable 2, in the use process, two or more shielding cables 2 may be provided according to actual situations, one end of the grounding cable 3 is at least partially connected in the base 1, and the end of the grounding cable 3 extending out of the base 1 is connected with a grounding terminal 6, and grounding of the grounding cable 3 is achieved through the grounding terminal 6;

the shielding cable 2 is composed of a first section 25 and a second section 26 at least partially extending into the base body 1, the tail end of the first section 25, which is far away from the base body 1, is normally grounded along with the vehicle-mounted charger, and one end of the first section 25, which is close to the base body 1, is connected with the grounding cable 3 to realize grounding, so that the grounding of the two ends of the shielding cable 2 is realized. The shielded cable 2 comprises a conductor 21 and a sheath layer 22 which are arranged from inside to outside, the first section 25 further comprises a shielding layer 23 and an insulating layer 24 which are sequentially arranged outside the sheath layer 22, an extension part 231 of the shielding layer 23 is electrically connected with the grounding cable 3, and the second section 26 is positioned outside the base body 1 and has a shorter length, so that electromagnetic interference generated in the current transmission process of the shielded cable 2 in the part is reduced as much as possible.

Further, as shown in fig. 2, the first sealing sleeve 4 is sleeved on the outer side of the joint between the first section 25 and the second section 26, the through first sleeve 41 is provided on the side wall of the first sealing sleeve 4, the extension 231 is at least partially contained in the first sleeve 41, when the shielded cable 2 is processed, the second section 26 is formed after the outer shielding layer 23 and the insulating layer 24 are peeled off, the peeled shielding layer 23 forms the extension 231, and is contained in the first sleeve 41, so that the shielded cable can be conveniently connected with the patch cable 5.

Further, as shown in fig. 2, the structure further includes patch cables 5 corresponding to the shielding cables 2 one by one, the number of the patch cables 5 is consistent with that of the shielding cables 2, one end of each patch cable 5 extends into the first sleeve 41 to overlap with the extending portion 231, the first sleeve 41 can also protect the overlapping portion to avoid accidental damage to the overlapping portion and cause faults, and the other end of each patch cable 5 is connected with the grounding terminal 6, so that double-end grounding shielding of the shielding cables 2 is realized.

Further, as shown in fig. 3, the ground terminal 6 includes a cylindrical portion 61, and the ground cable 3 and the patch cable 5 extend into the cylindrical portion 61 and are electrically connected to the ground terminal 6, so that the connection is stable and reliable, and the second sealing sleeve 7 is sleeved outside the opening of the cylindrical portion 61, so as to prevent an accidental leakage accident.

Further, as shown in fig. 3 and 4, the heat-shrinkable rubber particles 8 are sleeved on the outer side of the patch cable 5, and the heat-shrinkable rubber particles 8 are located outside the cylindrical portion 61 and are wrapped inside the second sealing sleeve 7, and because the section of the cylindrical portion 61 is circular, a large number of gaps are formed in the cylindrical portion 61 after the patch cable 5 and the grounding cable 3 are inserted into the cylindrical portion 61, and the heat-shrinkable rubber particles 8 are melted after being heated, so that the gaps can be effectively filled, and the connection is more firm and reliable.

Further, the outside cover of earth connection cable 3 with the patch cord 5 is equipped with the fixed buckle of at least one department, can fix patch cord 5 and earth connection cable 3 as an organic wholely better through fixed buckle, reduces the rocking of pencil in installation and the use.

Further, the first sealing sleeve 4 and the second sealing sleeve 7 are double-wall heat shrinkage pipes, the wall thickness of the double-wall heat shrinkage pipes is thicker, the mechanical protection performance of the joint is better, and the waterproof effect can be achieved.

According to the shielding cable, both ends of the shielding cable 2 are grounded, so that the shielding effect is better, electromagnetic interference to peripheral equipment is reduced, and riding experience is improved; this patent all is connected the ground connection of many shielding cable 2 to same patch cord 3 on, has reduced the quantity of patch cord 3, and cost and pencil dead weight have been reduced.

Example 2

Further, as shown in fig. 5, the second section 26 and a part of the first section 25 connected with the second section extend into the base 1, and compared with the embodiment 1, the second section 26 with the shielding layer 23 peeled off is located in the base 1, so that the shielding effect is more thorough.

Further, as shown in fig. 6, the third sealing sleeve 10 is sleeved at the connection part of the extension part 231 and the ground cable 3, and after the extension part 231 is connected with the ground cable 3, the connection part is protected by the third sealing sleeve 10, so as to prevent the unexpected falling of the connection part, which results in the failure of shielding.

Further, as shown in fig. 7, a shielding shell 11 is disposed in the housing 1 of this embodiment, and a portion of the shielding cable 2 is sleeved in the shielding shell 11, and the extension 231 is electrically connected to the shielding shell 11. The shielding shell 11 is used for realizing electromagnetic shielding of the base body 1, so that electric signals inside and outside the base body are mutually interfered when high-current transmission is prevented, and the electricity safety is ensured. And can work together with the shielding cable 2 to complete the whole circuit shielding and improve the reliability of shielding.

Further, the third sealing sleeve 10 is a single-wall heat shrinkage tube, and because the third sealing sleeve 10 is positioned in the seat body 1, the seat body 1 has waterproof performance, and the probability of accidental touch and collision in the seat body 1 is small, the requirement can be met by adopting the single-wall heat shrinkage tube, and the cost is reduced.

Other portions of this embodiment are identical to those of embodiment 1.

Compared with the embodiment 1, in the embodiment, the connection part of the shielded cable and the patch cable 3 is arranged in the seat body 1, the second section 26 of the stripped shielding layer 23 is wholly positioned in the seat body 1, the shielding effect is better, but the installation process is more complicated because the connection part of the extension part 231 and the grounding cable 3 is positioned in the seat body 1;

in embodiment 1, the connection between the extension 231 and the ground cable 3 is located outside the base 1, so that the installation process is simpler, but the shielding effect is not as good as that of embodiment 2, and in the actual operation process, a proper shielding scheme can be selected according to the actual cost control and the customer requirements.

While certain specific embodiments of the utility model have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the utility model. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the utility model. The scope of the utility model is defined by the appended claims.

Claims

1. The high-voltage wire harness shielding structure is characterized by comprising a base body (1), a grounding cable (3) and at least one shielding cable (2), wherein one end of the grounding cable (3) is at least partially connected in the base body (1), and the tail end of the grounding cable (3) extending out of the base body (1) is connected with a grounding terminal (6);

the shielding cable (2) comprises a first section (25) and a second section (26) at least partially extending into the base body (1), the shielding cable (2) comprises a conductor (21) and a sheath layer (22) which are arranged from inside to outside, the first section (25) further comprises a shielding layer (23) and an insulating layer (24) which are sequentially arranged outside the sheath layer (22), and an extension part (231) of the shielding layer (23) is electrically connected with the grounding cable (3).

2. A high voltage harness shielding structure according to claim 1, characterized in that the outer side of the junction of the first section (25) and the second section (26) is provided with a first sealing sleeve (4), the side wall of the first sealing sleeve (4) is provided with a first sleeve (41) penetrating through the first sleeve, and the extension (231) is at least partially accommodated in the first sleeve (41).

3. The high-voltage harness shielding structure according to claim 2, further comprising a switching cable (5) corresponding to the shielding cables (2) one by one, wherein one end of the switching cable (5) stretches into the first sleeve (41) to be overlapped with the extension part (231), and the other end of the switching cable (5) is connected with a grounding terminal (6).

4. A high voltage harness shielding structure according to claim 3, characterized in that the grounding terminal (6) comprises a cylindrical portion (61), the grounding cable (3) and the adapting cable (5) extend into the cylindrical portion (61) and are electrically connected with the grounding terminal (6), and a second sealing sleeve (7) is sleeved outside an opening of the cylindrical portion (61).

5. The high-voltage wire harness shielding structure according to claim 4, wherein heat-shrinkable rubber particles (8) are sleeved on the outer side of the adapter cable (5), and the heat-shrinkable rubber particles (8) are located outside the cylindrical portion (61) and are wrapped inside the second sealing sleeve (7).

6. The high-voltage harness shielding structure according to claim 4, wherein at least one fixing buckle is sleeved on the outer sides of the grounding cable (3) and the adapter cable (5).

7. A high voltage harness shielding structure according to claim 1, characterized in that the second section (26) and the part of the first section (25) connected thereto each extend into the housing (1).

8. A high voltage harness shielding structure according to claim 1, characterized in that the junction of the extension (231) and the grounding cable (3) is sleeved with a third sealing sleeve (10).

9. The high-voltage harness shielding structure according to claim 1, wherein a shielding case (11) that is provided with a portion of the shielded cable (2) is housed in the housing (1), and the extension portion (231) is electrically connected to the shielding case (11).

10. A high voltage harness shielding structure according to claim 4, characterized in that the first sealing sleeve (4) and the second sealing sleeve (7) are double-walled heat shrink tubes; the third sealing sleeve (10) sleeved at the joint of the extension part (231) and the grounding cable (3) is a single-wall thermoplastic pipe.