CN101997237B - cable assembly - Google Patents

Abstract

The invention discloses a cable assembly comprising an electric coupler, a cable and a shielding element, wherein the cable is connected with the electric coupler, and the shielding element covers the electric coupler and the cable; and the cable comprises a plurality of core wires, a shielding braid and an outer layer covering the shielding braid, wherein the shielding braid on one end of the cable is exposed, and an insulator is shaped on the cable. The cable assembly is also provided with a conductive film which covers the exposed shielding braid of the cable and the insulator, and the shielding element and the conductive film covering on the insulator are electrically connected. The cable assembly of the invention has a simple structure and a good shielding effect.

Description

cable assembly

【Technical field】

The invention relates to a cable assembly, in particular to a connection structure between a shielding part of the cable assembly and a shielding braiding layer of the cable.

【Background technique】

In the cable assembly in the prior art, the shielding piece of the electrical connector and the shielding braiding layer of the cable are usually connected together by welding or riveting. However, when the size of the cable assembly is small, a good welding effect cannot be achieved if the welding method is used. Similarly, if the riveting method is adopted, the cables are easily damaged.

In addition, Chinese Patent No. CN2358593Y discloses a cable assembly, the shielding braid on the cable assembly is connected with a conductive sheet. The conductive sheet is connected with the shielding sheet of the electrical connector to electrically connect the shielding sheet with the shielding braiding layer of the cable. However, the complex structure of the cable assembly makes its assembling process complicated and expensive.

Therefore, it is necessary to improve the existing technology to overcome the above-mentioned defects.

【Content of invention】

The technical problem to be solved by the present invention is to provide a cable assembly with simple structure and good shielding effect.

The technical problem to be solved by the present invention is achieved through the following technical solutions: a cable assembly, which includes an electrical connector, a cable connected to the electrical connector, and a cover covering the electrical connector and the cable The shielding part, the cable includes a number of core wires, a shielding braid and an outer layer wrapped on the shielding braid, wherein the shield braid at one end of the cable is exposed, and the cable is formed with an insulating The cable assembly is also provided with a conductive film, the conductive film is wrapped on the exposed shielding braid of the cable and the insulating part, and the shielding part is electrically connected to the conductive film wrapped on the insulating part sexual connection.

Compared with the prior art, the cable assembly of the present invention has an insulator formed on the cable, and the conductive film wraps the insulator and the shielding braid of the cable and then electrically connects with the shield, thereby ensuring that the cable The shield braid and the shield are well grounded. The cable assembly has a simple structure and good shielding effect.

【Description of drawings】

Figure 1 is a perspective view of a cable assembly according to the present invention.

Fig. 2 is a partial sectional view of the cable assembly shown in Fig. 1 along the direction A-A.

FIG. 3 is an exploded view of the cable assembly shown in FIG. 1 .

FIG. 4 is an enlarged view of the circled portion in FIG. 3 .

Fig. 5 is a schematic diagram of the inner casing of the cable assembly shown in Fig. 3 after being assembled to the built-in circuit board and the second insulating part.

FIG. 6 is a schematic diagram of the exposed shielding braiding layer of the cable and the protrusion of the insulating member wrapped by the conductive film of the cable assembly shown in FIG. 3 .

FIG. 7 is a schematic diagram of the assembled shield of the cable assembly shown in FIG. 3 .

【Detailed ways】

Please refer to FIGS. 1-7 , the cable assembly 1 includes an electrical connector 10 , a cable 20 , an inner shell 30 , a conductive film 40 , a shield 50 , a protective cover 60 and an outer shell 70 .

Referring to FIGS. 3-4 , the electrical connector 10 includes an insulating bearing portion 11 , a plurality of terminals 12 and a built-in circuit board 13 . The carrying portion 11 is provided with a plurality of receiving grooves 111 . The plurality of terminals 12 are accommodated in the plurality of receiving grooves 111 . The built-in circuit board 13 is disposed behind the carrying portion 11 , and the built-in circuit board 13 is provided with a plurality of first and second conductive portions 131 , 132 . The plurality of terminals 12 extend from the receiving groove 111 and are electrically connected to the plurality of first conductive portions 131 . The plurality of second conductive portions 132 are used to electrically connect with the cable 20 .

Referring to FIGS. 2-4 , the cable 20 includes a plurality of core wires 21 , a shielding braid 22 and an outer layer 23 wrapped on the shielding braid 22 . A first insulating member 24 and a second insulating member 25 are molded on the cable 20 . The second insulator 25 fixes the plurality of core wires 21 in a row, so that front ends of the plurality of core wires 21 are aligned and cut to be soldered to the plurality of second conductive parts 132 of the built-in circuit board 13 . The shielding braid 22 of the cable 20 between the second insulating member 25 and the aforementioned first insulating member 24 is not wrapped by the outer layer 23 . The first insulator 24 has a protrusion 241 on its periphery.

Referring to FIG. 2 and FIG. 5 , the inner housing 30 is assembled on the built-in circuit board 13 of the electrical connector 10 and the second insulating member 25 of the cable 20 .

Referring to FIGS. 2-3 and 6-7, the conductive film 40 is wrapped on the exposed shielding braid 22 and the first insulating member 24 of the cable 20 between the first insulating member 24 and the second insulating member 25. . The conductive film 40 can be a conductive material such as copper foil or aluminum foil. The aforementioned protrusion 241 of the first insulating member 24 is also wrapped in the conductive film 40 .

The shielding member 50 covers the electrical connector 10 and the cable 20 , and is electrically connected to the conductive film 40 wrapped on the first insulating member 24 . The shielding member 50 is press-fitted with the protrusion 241 of the first insulating member 24 . The protrusion 241 lifts the conductive film 40 to be electrically connected to the shield 50 , thereby enhancing the cooperation between the conductive film 40 and the shield 50 , so that the shielding braid 22 of the cable 20 and the shield 50 The grounding effect between them is good.

The protective sheath 60 is sheathed on the cable 20 , and the protective sheath 60 is provided with a connecting portion 61 installed on the first insulating member 24 of the cable 20 . The connecting portion 61 is provided with a protrusion 611 .

The outer casing 70 is disposed on the connecting portion 61 of the shielding member 50 and the protective cover 60. The outer casing 70 is provided with an opening 71 , and the protrusion 611 of the connecting portion 61 of the protective cover 60 is matched with the opening 71 . The outer shell 70 is also provided with a hook 72 that can be locked with a mating electrical connector (not shown).

When assembling the cable assembly 1 , the second conductive portion 132 on the built-in circuit board 13 of the electrical connector 10 and the core wires 21 of the cable 20 are soldered and connected together. Then assemble the inner casing 30 onto the built-in circuit board 13 and the second insulating member 25 of the cable 20 . Then wrap the conductive film 40 on the shielding braid 22 of the cable 20 and the protrusion 241 of the first insulating member 24 . Then, the shielding member 50 is covered on the electrical connector 10 and the cable 20 , and the shielding member 50 is electrically connected to the conductive film 40 wrapped on the protrusion 241 of the first insulating member 24 . Finally, the protective sheath 60 is sleeved on the cable 20 , and the outer shell 70 is installed on the shielding member 50 and the connecting portion 61 of the protective sheath 60 . The protrusion 611 of the connecting portion 61 of the protective cover 60 is matched with the opening 71 of the outer casing 70 .

The cable 20 is provided with a first insulating member 24, and the conductive film 40 wraps the first insulating member 24 and the shielding braid 22 of the cable 20 and then electrically connects with the shielding member 50, thereby ensuring the integrity of the cable 20. Good grounding of the shield braid 22 and the shield 50 . The cable assembly 1 has a simple structure and good shielding effect.

Claims (10)

1. A cable assembly, comprising an electrical connector, a cable connected to the electrical connector, and a shield covering the electrical connector and the cable, the cable comprising several core wires, The shielding braiding layer and the outer covering layer wrapped on the shielding braiding layer, wherein the shielding braiding layer at one end of the cable is exposed outside, characterized in that: the cable is separately molded with an insulating part, and the cable assembly is also A conductive film is provided, and the conductive film is wrapped on the exposed shielding braiding layer and the insulating part of the cable, and the shielding part is electrically connected with the conductive film wrapped on the insulating part. 2. The cable assembly according to claim 1, characterized in that: the insulating member is provided with a protrusion, and the conductive film is covered on the protrusion, and the protrusion lifts the conductive film to be in contact with the conductive film. The above-mentioned shields are electrically connected. 3. The cable assembly according to claim 1, wherein the insulating member is a first insulating member, and the cable is also formed with a second insulating member, and the second insulating member fixes the plurality of core wires for a row. 4. The cable assembly according to claim 3, characterized in that: the shielding braiding layer of the cable between the second insulator and the first insulator is not wrapped by an outer layer, and the conductive film is wrapped On the shielding braiding layer of the cable between the first insulator and the second insulator. 5. The cable assembly according to claim 4, wherein the electrical connector comprises a bearing portion provided with a plurality of receiving grooves, a plurality of terminals accommodated in the plurality of receiving grooves, and a plurality of terminals arranged on the bearing portion The built-in circuit board at the rear, the built-in circuit board is provided with a plurality of first conductive parts and second conductive parts, and the plurality of terminals extend from the receiving groove and are electrically connected with the plurality of first conductive parts. The plurality of core wires of the cable are electrically connected to the plurality of second conductive parts. 6 . The cable assembly as claimed in claim 5 , wherein the cable assembly comprises an inner casing for accommodating the built-in circuit board and the second insulator. 6 . 7. The cable assembly according to claim 1, characterized in that: the cable assembly further comprises a protective cover sleeved on the cable, and the protective cover is provided with a connecting portion installed on the insulating member. 8 . The cable assembly according to claim 7 , wherein the cable assembly further comprises an outer casing, and the outer casing is sheathed on the connecting portion of the shielding member and the protective cover. 9 . The cable assembly according to claim 8 , wherein an opening is provided on the outer casing, and a protrusion that fits with the opening is provided on the connecting portion of the protective cover. 10 . 10 . The cable assembly according to claim 8 , wherein the outer casing is provided with a hook, and the hook can be locked with a pair of electrical connectors. 11 .

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