CN101931150A - cable connector - Google Patents

Abstract

A cable connector comprises a butt circuit board and a cable electrically connected with the butt circuit board, wherein the cable is provided with a plurality of conducting wires and a shielding layer coated on the peripheries of the conducting wires, and the cable connector further comprises: the insulating inner shell is coated on the periphery of the joint of the butt circuit board and the cable; the inner shielding piece is coated on the periphery of the insulating inner shell and is electrically contacted with the shielding layer of the cable; the insulating shell is coated on the periphery of the inner shielding piece; an outer shield member provided on the periphery of the insulating case; and two conductive elements disposed within the insulative housing, the two conductive elements electrically connecting the inner and outer shields together to maintain ground. The cable connector is additionally provided with the inner shielding part and the outer shielding part, and the two conductive elements are arranged between the inner shielding part and the outer shielding part to electrically connect the inner shielding part and the outer shielding part together to realize grounding, so that the electromagnetic shielding protection of the cable connector is enhanced, and the signal transmission quality is improved.

Description

cable connector

technical field

The invention relates to a cable connector, in particular to an iPass cable connector which is less susceptible to external electromagnetic interference during signal transmission.

Background technique

The cable connector is an important component for data connection between electronic products. The traditional cable connector, as shown in Chinese patent ZL 200720178504.8, includes an insulating shell, and a pair of docking circuit boards is arranged inside the insulating shell. The rear end of the docking circuit board is electrically connected with a cable, and the front end of the docking circuit board is provided with a plurality of conductive sheets that can be electrically connected with another docking connector. However, the docking circuit board and the cable of this traditional cable connector are directly arranged in the insulating shell, and the outer periphery of the docking circuit board and the cable is not provided with a shielding layer, so effective electromagnetic shielding protection cannot be provided, so this Such cable connectors are susceptible to external electromagnetic interference during high-speed signal transmission, resulting in signal transmission errors. Therefore, it is necessary to design a new cable connector to solve the above problems.

Contents of the invention

The main purpose of the present invention is to provide a cable connector that can enhance electromagnetic shielding protection to improve signal transmission quality.

In order to achieve the above object, the present invention provides a cable connector, comprising a docking circuit board, a cable electrically connected to the docking circuit board, the cable has a plurality of wires and is coated on these A shielding layer on the outer circumference of the wire, the cable connector also includes: an insulating inner shell, which covers the outer circumference of the connection between the docking circuit board and the cable; an inner shield, which covers the The outer periphery of the insulating inner shell is electrically connected with the shielding layer of the cable; an insulating shell is wrapped around the outer periphery of the inner shield; an outer shield is installed on the an outer periphery of the insulating casing; and at least one conductive element disposed within the insulating casing, the at least one conductive element electrically connecting the inner shield and the outer shield together.

A first groove is provided on the insulating shell; the at least one conductive element includes a first conductive element arranged in the first groove, and the first conductive element includes a body and a At least one pair of elastic arms bent and extended from the upper and lower sides, each pair of elastic arms includes an upper elastic arm and a lower elastic arm, wherein the upper elastic arm elastically abuts against the outer shield, and the lower elastic arm elastically abutting against the inner shield, so that the inner shield and the outer shield are electrically connected to each other.

A second groove is also provided on the insulating shell; the at least one conductive element also includes a second conductive element arranged in the second groove, and the second conductive element is C-shaped in cross section The strip-shaped element, the second conductive element includes a first elastic portion that elastically abuts against the inner shield and a second elastic portion that elastically abuts with the outer shield, so that the inner shield The component and the outer shielding component are electrically connected to each other.

The present invention has the following beneficial effects. The cable connector of the present invention adds an inner shield and an outer shield, and at least one conductive element is arranged between the inner shield and the outer shield to electrically connect the inner shield The grounding is realized by using the component and the outer shield, which not only enhances the electromagnetic shielding protection of the cable connector and improves the signal transmission quality, but also the conductive element is elastically abutted between the inner shield and the outer shield, Make the two establish a stable electrical connection relationship to maintain grounding to obtain a good electromagnetic shielding effect. This elastic abutment method is not easy to loosen and disconnect even if it is used in occasions with frequent and severe vibrations, and the work is more reliable.

Description of drawings

Fig. 1 is a three-dimensional exploded schematic diagram of a cable connector of the present invention;

Fig. 2 is a three-dimensional exploded schematic diagram of another angle of the cable connector of the present invention;

3 to 6 are step-by-step assembly diagrams of the cable connector of the present invention;

Fig. 7 is a perspective view of the cable connector of the present invention;

Fig. 8 is a front view of the cable connector of the present invention;

Fig. 9 is a top view of the cable connector of the present invention;

Fig. 10 is the sectional view of line A-A among Fig. 9;

Fig. 11 is the sectional view of B-B line among Fig. 9;

12 is a perspective view of the first conductive element of the cable connector of the present invention;

Fig. 13 is a perspective view of the second conductive element of the cable connector of the present invention.

Detailed ways

The cable connector of the present invention is used to connect with another connector socket (not shown in the figure) to realize the communication connection between the two. In order to further illustrate the principle and structure of the present invention, preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

1 to 2, the cable connector of the present invention includes a mating circuit board 1, a cable 2 electrically connected to the mating circuit board 1, wrapped around the mating circuit board 1 and the wire An insulating inner shell 3 on the outer periphery of the cable 2 connection, an inner shield 4 wrapped on the outer periphery of the insulating inner shell 3, an insulating outer shell 5 wrapped on the outer periphery of the inner shield 4, installed on the insulating outer shell 5, a first conductive element 6 and a second conductive element 7, an outer shield 8 and a hook element 9 installed on the outer periphery of the insulating shell 5.

The front end of the docking circuit board 1 is provided with a plurality of conductive sheets 11 , and these conductive sheets 11 are respectively arranged on the upper and lower surfaces of the docking circuit board 1 .

The cable 2 includes a plurality of wires 21 insulated from each other, a shielding layer 22 wrapped around the outer periphery of these wires 21, and an outer insulating layer 23 wrapped around the outer periphery of the shielded layer 22. The front ends of the wires 21 are respectively It is electrically connected with the conductive sheet 11 of the docking circuit board 1 , and the front part of the shielding layer 22 is exposed outside the outer insulating layer 23 .

The insulating inner shell 3 is made of insulating material, which is injection overmolded on the outer periphery of the connection between the docking circuit board 1 and the cable 2 (see FIG. 3 in combination), wherein the docking circuit board 1 is provided with The front end of the conductive piece 11 protrudes out of the insulating inner shell 3 forward.

The inner shield 4 is made of multi-layer copper foil or other conductive materials, and it includes a shielding body 41 and a connecting portion 42 connected to the rear end of the shielding body 41. The shielding body 41 is wrapped in the insulation The outer periphery of the shell 3, the connecting portion 42 covers the outer periphery of the exposed shielding layer 22 at the front end of the cable 2 and is electrically connected with it (refer to FIG. 4 in conjunction with it).

The insulating shell 5 is made of insulating material, which is further injection-molded on the inner shield 4 and the outer periphery of the cable 2 (refer to FIG. 5 in combination), and the insulating shell 5 includes a top plate 51 and a bottom plate 52 And two side plates 53 connected between the top plate 51 and the bottom plate 52 . Front ends of the top plate 51 and the bottom plate 52 respectively extend forward to form two parallel tongue plates 54 . Please refer to Fig. 5, Fig. 10 and Fig. 11 together, the middle part of the top plate 51 protrudes upward to form a protruding part 511, and a first groove 55 is arranged on the protruding part 511, and the first groove 55 includes a relatively A narrow slot 552 and two accommodating slots 554 are respectively disposed on both sides of the slot 552 ; a second groove 56 is disposed in the middle of the bottom plate 52 . The upper and lower tongues 54 of the insulating shell 5 are respectively located on the upper and lower sides of the mating circuit board 1 to form a mating port at the front end of the cable connector that can be mated with the receptacle connector.

Please refer to FIG. 6 and FIG. 12 together. The first conductive element 6 is an elastic conductive element formed by punching and bending a metal sheet, and its shape matches the shape of the first groove 55 on the insulating shell 5. , so as to be accommodated in the first groove 55 . The first conductive element 6 includes a main body 61 and two pairs of elastic arms respectively arranged at two ends of the main body 61. The lower side of the middle part of the main body 61 is bent upward to form a fastening arm 62, and the fastening arm 62 can hold the second A conductive element 6 is fastened into the slot 552 of the first groove 55 (refer to FIG. 10 in conjunction). Please refer to FIG. 11 , each pair of elastic arms is elastically and movably accommodated in the two accommodating grooves 554 of the first groove 55 , which include bending and extending from the upper and lower sides of the corresponding end of the main body 61 to obliquely upward and obliquely downward respectively. An upper elastic arm 63 and a lower elastic arm 64 are formed, wherein the upper elastic arm 63 elastically abuts against the outer shield 8, and the lower elastic arm 64 elastically abuts against the inner shield 4, so as to electrically connect the outer shield 8 with the purpose of inner shield 4.

Please refer to Fig. 10, Fig. 11 and Fig. 13 together, the second conductive element 7 is a strip-shaped elastic conductive element with a C-shaped cross-section formed by punching and bending a metal sheet, and its overall shape is insulated from the The shape of the second groove 56 on the housing 5 is adapted to be accommodated in the second groove 56. The second conductive element 7 includes a first elastic portion 71 and a second elastic portion symmetrically arranged up and down. 72. The first elastic portion 71 of the second conductive element 7 elastically abuts against the shield body 41 of the inner shield 4 to form an electrical connection.

Referring to FIGS. 1 to 6 , the outer shielding member 8 is made of metal material, and includes an outer copper foil 81 and a shielding case 82 . The outer clad copper foil 81 is roughly U-shaped, and it can be wrapped around the outer periphery of the middle part of the insulating shell 5 and cover the second groove 56, and can be connected with the second conductive element 7 disposed in the second groove 54. The second elastic parts 72 are elastically abutted together to achieve electrical connection (see FIG. 10 and FIG. 11 in conjunction). The shielding cover 82 is a square frame sheathed on the outer periphery of the insulating shell 5, which includes a cover top plate 821, two cover side plates 822 and a cover bottom plate 823, and the cover top plate 821 is stepped. , whose shape is adapted to the shape of the protruding part 511 on the insulating shell 5, so that when the shielding cover 82 is set on the outer periphery of the middle part of the insulating shell 5, the cover top plate 821 can fitly cover the protruding part part 511, and form electrical contact with the upper elastic arm 63 of the first conductive element 6 arranged in the first groove 55; two elastic pieces 824 protrude inwardly from the cover body side plate 822, and A plurality of elastic pieces 824 protrude inward from the cover bottom plate 823, so that when the shielding cover 82 is placed on the outer periphery of the middle part of the insulating shell 5, the elastic pieces 824 elastically abut against the outer surface of the outer copper foil 81. surface to form an electrical connection.

The hook element 9 is fixed behind the protrusion 511 on the top plate 51 of the insulating housing 5, and the hook element 9 is provided with two hooks 91, so that the cable connector and another connector socket ( (not shown in the figure) when docking, the hook 91 can hook the connector socket (not shown in the figure) to prevent the cable connector from falling off.

When assembling the cable connector of the present invention, please refer to Figs. The outer periphery of the connection part of the cable 2 is injection molded into the insulating inner shell 3; then referring to FIG. The outer periphery of the shielding layer 22 exposed at the front end of the cable 2; please refer to FIG. In the second groove 56 of the insulating shell 5, and wrap the outer copper foil 81 on the outer periphery of the middle part of the insulating shell 5, at this time, the first elastic part 71 and the second elastic part of the second conductive element 7 72 and the shield body 41 of the inner shield 4 and the outer copper foil 81 are elastically pressed against each other to form an electrical connection (see Figure 10 and Figure 11 in combination), and the hook element 9 can be clamped on the The rear of the protruding part 511 on the top plate 51 of the insulating shell 5; please refer to Fig. 6 and Fig. 7 again, finally the first conductive element 6 is clamped into the first groove 55 of the insulating shell 5, and the shielding cover 82 is inserted into the outer periphery of the outer copper foil 81 from the front. At this time, the two upper elastic arms 63 and the two lower elastic arms 64 of the first conductive element 6 are respectively connected to the top plate 821 of the shielding case 82 and the inner shield 4 The shielding body 41 elastically butts together to form an electrical connection, and the elastic piece 824 on the shield 82 and the outer copper foil 81 also elastically butts together to form an electrical connection (see FIG. 10 in conjunction with and FIG. 11 ), so that a stable electrical connection relationship is established between the inner shield 4 and the outer shield 8 . Thus, the cable connector shown in FIG. 7 is assembled and formed. When the cable connector is mated with another connector socket (not shown), the shielding cover 82 of the outer shield 8 is electrically connected to the shielding cover (not shown) on the other connector socket. Together, the inner shielding member 4 and the shielding layer 22 on the cable 2 connected to it are electrically connected to the ground, so as to achieve the purpose of shielding external electromagnetic interference.

What needs to be explained here is that two conductive elements (namely the first conductive element 6 and the second conductive element 7) are simultaneously provided on the cable connector in this embodiment, but it should not be limited to this only, that is, That is to say, in practical applications, a better shielding effect can also be achieved if only one or more of the two conductive elements are provided.

The cable connector of the present invention adds an inner shield 4 and an outer shield 8, and two conductive elements 6, 7 are arranged between the inner shield 4 and the outer shield 8 to electrically connect the inner shield 4 and the outer shield 8 to achieve grounding, thereby enhancing the electromagnetic shielding protection of the cable connector and improving the quality of signal transmission, and the two conductive elements 6, 7 are elastically abutted against the inner shield 4 and the outer Between the shielding parts 8, a stable electrical connection relationship between the two is established to maintain grounding so as to obtain a good electromagnetic shielding effect. This elastic abutment method is not easy to loosen and disconnect even if it is applied to occasions with frequent and severe vibrations. The work is more reliable.

The above descriptions are only preferred feasible embodiments of the present invention, and do not limit the protection scope of the present invention. Therefore, all equivalent structural changes made by using the description and drawings of the present invention are included in the protection scope of the present invention.

Claims (10)

1. A cable connector, comprising a pair of docking circuit boards, a cable electrically connected to the docking circuit boards, the cable has a plurality of wires and a shielding layer covering the outer circumference of these wires, It is characterized in that the cable connector also includes: An insulating inner shell, which covers the outer periphery of the connection between the docking circuit board and the cable; an inner shield, which wraps around the outer periphery of the insulating inner shell and is electrically connected to the shielding layer of the cable; an insulating shell covering the outer periphery of the inner shield; an outer shield mounted on the outer periphery of the insulating housing; and At least one conductive element is installed in the insulating shell, and the at least one conductive element electrically connects the inner shield and the outer shield together. 2. The cable connector according to claim 1, wherein a first groove is provided on the insulating shell; the at least one conductive element includes a first groove disposed in the first groove. The conductive element, the first conductive element includes a body and at least a pair of elastic arms bent and extended from the upper and lower sides of the body, each pair of elastic arms includes an upper elastic arm and a lower elastic arm, wherein the upper The elastic arm elastically abuts against the outer shielding part, and the lower elastic arm elastically abuts against the inner shielding part, so that the inner shielding part and the outer shielding part are electrically connected to each other. 3. The cable connector according to claim 2, wherein the first conductive element comprises two pairs of elastic arms respectively bent and extended from the upper and lower sides of the two ends of the body. 4. The cable connector according to claim 3, wherein the first groove comprises a relatively narrow slot and two accommodating slots respectively arranged on both sides of the slot, the first The conductive element is also bent to form a clamping arm on one side of the middle part of the body, and the first conductive element is clamped into the clamping groove of the first groove through the clamping arm, and the two pairs of elastic arms It can be elastically and movably accommodated in the two accommodating grooves. 5. The cable connector according to claim 1, 2, 3 or 4, wherein a second groove is provided on the insulating shell; A second conductive element in the two grooves, the second conductive element is an elongated element with a C-shaped cross section, and the second conductive element includes a first elastic elastically abutting against the inner shield part and a second elastic part elastically abutting against the outer shielding part, so that the inner shielding part and the outer shielding part are electrically connected to each other. 6. The cable connector according to claim 5, wherein the outer shielding member comprises an outer clad copper foil disposed on the outer periphery of the insulating shell and an outer clad copper foil disposed on the outer periphery of the outer copper foil In the shielding case, the outer copper foil covers the second groove, and forms an electrical connection with the second elastic part of the second conductive element disposed in the second groove. 7 . The cable connector according to claim 6 , wherein the shielding cover is provided with a plurality of elastic pieces, and the elastic pieces elastically abut against the outer copper foil to form an electrical connection. 8 . 8. The cable connector according to claim 1, 2, 3 or 4, wherein the outer shielding member comprises a shielding cover, and the shielding cover is one side sheathed on the outer periphery of the insulating shell shaped frame. 9. The cable connector according to claim 1, 2, 3 or 4, wherein the inner shielding member comprises a shielding body and a connecting portion connected to the rear end of the shielding body, the shielding body Wrapped on the outer periphery of the insulating inner shell and electrically connected to the at least one conductive element, the connecting portion is wrapped on the outer periphery of the shielding layer of the cable and electrically connected to it. 10 . The cable connector according to claim 9 , wherein the inner shielding member is formed by wrapping multi-layer copper foil on the outer periphery of the insulating inner shell. 11 .

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