CN215299741U

CN215299741U - Shielded cable assembly

Info

Publication number: CN215299741U
Application number: CN202120716596.0U
Authority: CN
Inventors: 孙靖攀; 陈红龙; 王羽; 叶展
Original assignee: Hangzhou Hikvision Digital Technology Co Ltd
Current assignee: Hangzhou Hikvision Digital Technology Co Ltd
Priority date: 2021-04-08
Filing date: 2021-04-08
Publication date: 2021-12-24
Anticipated expiration: 2031-04-08

Abstract

The utility model discloses a shielded cable subassembly belongs to connecting wire technical field. The shielded cable assembly includes a connector, a shielded cable, and a junction shield, the connector being connected to the shielded cable. The shielding cable comprises a core wire, a shielding layer and an outer sheath layer, the shielding layer is sleeved on the core wire, and the outer sheath layer is sleeved on the shielding layer. At the junction of the shielding cable and the connector, the core wire protrudes out of the shielding layer and the outer sheath layer, and the core wire is connected with the connector. The junction shield is sleeved on the core wire protruding out of the shield layer, and the junction shield is connected with the shield layer. The shielding type cable assembly solves the problems that the shielding type cable and the connector in the prior art are not protected by shielding, and the shielding performance of the cable assembly is reduced.

Description

Shielded cable assembly

Technical Field

The utility model relates to a connecting wire technical field especially relates to shielded cable subassembly.

Background

The shielded wire is a wire with a metal braided fabric shell specially used for reducing the influence of an external electromagnetic field on a power supply or a communication line. The shielded wire also has the function of preventing the wire from radiating electromagnetic energy outwards.

When traditional shielded cable is being connected with the connector, in order to avoid the stitch in inside shielding of cable and the connector to switch on the short circuit unusually to and in order to avoid the inside shielding of cable to puncture inside heart yearn insulating layer, need remove the clearance with the edge that inside shielding parallel and level cable outer protective sheath was cut the skin mouth, and then lead to cutting partly no shielding protection between skin mouth and the connector, reduce cable subassembly shielding performance.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a shielded cable subassembly to there is not shielding protection in shielded cable and connector junction among the solution prior art, reduces the problem of cable subassembly shielding performance.

In order to solve the above problem, the utility model adopts the following technical scheme:

the utility model discloses a shielded cable assembly, which comprises a connector, a shielded cable and a shield at the joint, wherein the connector is connected with the shielded cable; the shielding cable comprises a core wire, a shielding layer and an outer sheath layer, wherein the shielding layer is sleeved on the core wire, and the outer sheath layer is sleeved on the shielding layer; at the joint of the shielding cable and the connector, the core wire protrudes out of the shielding layer and the outer sheath layer and is connected with the connector; the junction shield is sleeved on the core wire protruding out of the shield layer, and the junction shield is connected with the shield layer.

The utility model discloses a technical scheme can reach following beneficial effect:

the embodiment of the utility model discloses shielded cable group is through setting up the junction shield in heart yearn and connector junction, utilizes the heart yearn between junction shield cladding oversheath layer and the connector to through being connected with the shielding layer, solved the poor technical problem of shielding property of shielded cable and connector junction among the traditional shielded cable group, make the shielding property reinforcing of heart yearn and connector junction among the shielded cable subassembly.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:

fig. 1 is a schematic view of a shielded cable assembly according to an embodiment of the present invention;

fig. 2 is a schematic view of a shielded cable according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a first joint shield according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a second connector junction shield according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a third joint shield according to an embodiment of the present invention.

Description of reference numerals:

100-a connector;

200-a shielded cable;

210-a core wire; 220-a shielding layer; 230-an outer jacket layer;

300-junction shield;

400-a second insulating layer;

500-protective layer.

Detailed Description

To make the purpose, technical solution and advantages of the present invention clearer, the following will combine the embodiments of the present invention and the corresponding drawings to clearly and completely describe the technical solution of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The technical solutions disclosed in the embodiments of the present invention are described in detail below with reference to fig. 1 to 5.

Referring to fig. 1 to 5, a shielded cable assembly according to an embodiment of the present invention includes a connector 100, a shielded cable 200, and a junction shield 300. The shielded cable 200 is a basic member of a shielded cable assembly, and may be used for transmission of data and signals. The connector 100 is connected with the shielded cable 200 so as to connect the shielded cable 200 with the device. Specifically, a plurality of connectors 100 may be included in the shielded cable assembly, and for this reason, the present invention is not limited to the specific number of connectors 100.

The shielded cable 200 includes a core 210, a shielding layer 220 and an outer sheath layer 230, wherein the shielding layer 220 is disposed on the core 210, and the outer sheath layer 230 is disposed on the shielding layer 220. The shielding layer 220 is typically made of a conductive material. The shielding layer 220 is disposed on the core wire 210, so that the shielding layer 220 can be used to resist external electromagnetic interference, and meanwhile, electromagnetic interference radiated by the core wire 210 inside the shielding layer 220 can be avoided. In order to further increase the shielding system of the shielding cable 200, the shielding layer 220 in the shielding cable 200 may be connected to a ground line, so as to effectively introduce the interference current into the ground, thereby improving the interference resistance of the shielding cable 200.

At the connection of the shielded cable 200 and the connector 100, the core 210 protrudes from the shielding layer 220 and the outer sheath 230, and the core 210 is connected to the connector 100. Specifically, when the shielded cable 200 and the connector 100 are connected, the outer sheath 230 of the end of the shielded cable 200 is removed to form a cut so that the core 210 protrudes from the outer sheath 230 and the shield 220, so that the core is connected to the connector 100. Referring to fig. 3, the connector 100 may be a rivet-press type connector. Specifically, the rivet-press type connector includes a rivet-press terminal and a rubber shell, wherein the rivet-press terminal is located in the rubber shell and is used for being connected with the core wire 210. Specifically, the crimp terminal and the core wire 210 are connected by crimping. It should be noted that the rivet-press type connector is commonly used in the interior of the whole machine. The utility model discloses a improve shielding cable subassembly for shielding cable subassembly's shielding property reinforcing, and then under the condition of changing the board, laying out again that does not go on to the complete machine product, improve complete machine shielding property. There are many types of connectors 100, such as: IDC puncture type, terminal block, aviation head, network port, crystal head, VGA, DVI, HDMI, USB and the like. It should be noted that shielded cable assemblies may include a rivet connector and may include one or more connectors 100 other than a rivet connector. For example, one end of the shielded cable assembly may be a rivet-type connector and the other end may be another type of connector other than the rivet-type connector. For another example, one end of the shielded cable assembly may include a plurality of connectors, and the plurality of connectors may include a rivet connector, or may include other types of connectors other than the rivet connector.

Since the shielding layer 220 at the connection of the shielded cable 200 and the connector 100 in the shielded cable assembly is damaged and there is a portion of the core wire 210 exposed, the shielding performance at the connection of the shielded cable 200 and the connector 100 is reduced. The joint shield 300 is sleeved on the core wire 210 protruding from the shielding layer 220, and the joint shield 300 is connected to the shielding layer 220. The shielding member 300 at the joint is connected to the shielding layer 220 and sleeved on the core wire 210 protruding from the shielding layer 220, so that the shielding performance of the joint between the shielding cable 200 and the connector 100 can be effectively improved.

Referring to fig. 2 to 3, at the connection position of the shielded cable 200 and the connector 100, the shielding layer 220 protrudes from the outer sheath layer 230. Specifically, the shield layer 220 is arranged so that the shield layer 220 at least partially protrudes from the outer sheath layer 230, so that the shield 300 is connected to the shield layer 220 at the connection point.

Referring to fig. 3 and 4, the first end of the joint shield 300 is coated on a section of the shield layer 220 protruding from the outer sheath layer 230, so as to ensure the stability of the joint between the joint shield 300 and the shield layer 220. Further, the shielding layer 220 may extend to the outside of the outer sheath layer 230 and cover the outer sheath layer 230.

The junction shield 300 is made of a conductive material. Specifically, the joint shielding member 300 may be one or more of a conductive adhesive tape, a polymer conductive material, a conductive glue, a copper foil, an aluminum foil, and a metal mesh grid. Specifically, the junction shield 300 may be wrapped around the junction of the shielded cable 200 and the connector 100 by a conductive material, thereby forming the junction shield 300. Further, the incision, i.e., the end of the outer sheath layer 230, may be wrapped inside. In addition, the conductive material may be melted and injected at the connection between the shielded cable 200 and the connector 100 by injection molding, so that the solidified conductive material may cover the bare core wire 210, the shielding layer 220 protruding from the outer sheath layer 230, and/or the skin cut of the outer sheath layer 230.

The embodiment of the utility model discloses among the shielded cable subassembly, junction shield 300 is close to the one end of connector 100 and is less than 5mm apart from connector 100's distance. It should be noted that, because of the limitation of the assembly manner of the rivet-press type connector and the shielded cable 200, the exposed length of the core wire 210 between the shielded cable 200 and the connector 100 is greater than or equal to 15 mm. It is difficult to evade the EMC risk in a severe EMC environment with the core wire 210 exposed length of 15 mm. The utility model discloses an add junction shield 300, can make the exposed length of heart yearn 210 for being less than 5mm under the condition of volume production, and then can effectively improve the shielding property of shielded cable subassembly.

It should be noted that, in the present application, the distance from the end of the junction shield 300 close to the connector 100 is less than 5mm by adding the junction shield 300, so as to be suitable for more severe environments, but the present application is not limited to the distance from the end of the junction shield 300 close to the connector 100 being less than 5 mm. Specifically, under the condition that the distance between the outer sheath layer 230 and the connector 100 and the distance between the core wires 210 are large, that is, the length of the slicing opening is too large, and the requirement of the environment on the shielding performance of the cable assembly cannot be met, the shielding piece 300 at the joint can cover part of the core wires 210 at the slicing opening, so that the joint of the shielding cable 200 and the connector 100 can meet the requirement of the environment on the shielding performance. Therefore, in some cases where the requirement for shielding performance is relatively low, the distance from the connector 100 to the end of the shield 300 near the connector 100 at the connection may be greater than 5 mm.

Referring to fig. 4 and 5, the shielded cable assembly further includes a second insulating layer 400, the second insulating layer 400 covers a joint of the core 210 and the connector 100, a first end of the joint shield 300 is connected to the shielding layer 220, and a second end of the joint shield 300 covers the second insulating layer 400. The second insulating layer 400 may be an insulating medium such as an acetic acid adhesive tape, a polymer insulating material, a nano-film tape, a teflon tape, or an insulating sleeve. Specifically, the second insulating layer 400 may be wrapped around the joint of the core wire 210 and the connector 100 in a winding manner to prevent the connection of the shielding member 300 at the joint with the core wire 210 and the connector 100 from being conducted, so that no core wire 210 is exposed between the shielding cable 200 and the connector 100, and the shielding performance of the shielding cable assembly is improved, so as to be suitable for a more severe EMC environment. Of course, the second insulating layer 400 may also be coated on the connection position of the core wire 210 and the connector 100 by injection molding.

Referring to fig. 1, 3 and 5, in an embodiment of the present invention, the shielded cable assembly further includes a protective layer 500, the protective layer 500 at least partially covers the joint shield 300, and the protective layer 500 may extend to the outside of the outer sheath layer 230 and cover the outer sheath layer 230. One purpose of the protective layer 500 is to protect the leaky junction shield 300 not only to prevent the junction shield 300 from oxidizing in the environment, but also to prevent the junction shield 300 from conducting with other components in the device, so that the shielded cable assembly can be applied to more environments.

The first end of the protection layer 500 protrudes from one end of the connection shield 300 close to the connector 100, and the second end of the protection layer 500 protrudes from one end of the connection shield 300 away from the connector 100, so as to prevent the connection shield 300 from being exposed and protect the connection shield 300. Further, a first end of the protection layer 500 is hermetically connected to the connector 100, and a second end of the protection layer 500 is hermetically connected to the outer sheath layer 230.

In the above embodiments, the protective layer 500 is hermetically connected to the connector 100 and the outer sheath layer 230, so that the waterproof performance of the shielded cable assembly can be improved, and the shielded cable assembly can be suitable for more environments.

The utility model discloses what the key description in the above embodiment is different between each embodiment, and different optimization characteristics are as long as not contradictory between each embodiment, all can make up and form more preferred embodiment, consider that the literary composition is succinct, then no longer describe here.

The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A shielded cable assembly comprising a connector (100), a shielded cable (200) and a junction shield (300),

the connector (100) is connected with the shielded cable (200),

the shielding cable (200) comprises a core wire (210), a shielding layer (220) and an outer sheath layer (230), the shielding layer (220) is sleeved on the core wire (210), the outer sheath layer (230) is sleeved on the shielding layer (220),

at the connection position of the shielded cable (200) and the connector (100), the core wire (210) protrudes out of the shielding layer (220) and the outer sheath layer (230), and the core wire (210) is connected with the connector (100);

the junction shielding piece (300) is sleeved on the core wire (210) protruding out of the shielding layer (220), and the junction shielding piece (300) is connected with the shielding layer (220).

2. The shielded cable assembly of claim 1, wherein the shield layer (220) protrudes from the outer jacket layer (230) at a connection of the shielded cable (200) and the connector (100).

3. The shielded cable assembly of claim 2, wherein the first end of the junction shield (300) is wrapped around a section of the shield layer (220) protruding from the outer sheath layer (230), and the shield layer (220) extends out of the outer sheath layer (230) and wraps around the outer sheath layer (230).

4. Shielded cable assembly according to claim 1, wherein the end of the junction shield (300) close to the connector (100) is at a distance of less than 5mm from the connector (100).

5. The shielded cable assembly of claim 1, further comprising a second insulation layer (400), the second insulation layer (400) being wrapped around where the core (210) is connected to the connector (100),

the first end of the junction shield (300) is connected with the shielding layer (220), and the second end of the junction shield (300) is wrapped on the second insulating layer (400).

6. The shielded cable assembly of claim 1, wherein the junction shield (300) is made of a conductive material.

7. Shielded cable assembly according to claim 1, wherein the connector (100) is a rivet-press connector.

8. The shielded cable assembly of claim 1, comprising a protective layer (500), wherein the protective layer (500) at least partially covers the junction shield (300), and wherein the protective layer (500) extends beyond the outer jacket layer (230) and covers the outer jacket layer (230).

9. Shielded cable assembly according to claim 8, wherein a first end of the protective layer (500) protrudes beyond an end of the junction shield (300) close to the connector (100), and a second end of the protective layer (500) protrudes beyond an end of the junction shield (300) facing away from the connector (100).

10. The shielded cable assembly of claim 9, wherein a first end of the protective layer (500) is sealingly connected to the connector (100) and a second end of the protective layer (500) is sealingly connected to the outer jacket layer (230).