Cable connector assembly and assembly method thereof

Abstract

The present invention discloses a cable connector assembly and an assembly method thereof, wherein the cable connector assembly comprises an electrical connector, a cable electrically connected to the electrical connector, and a shell arranged outside the electrical connector and the cable, wherein the electrical connector comprises a butt joint, and a metal shell arranged outside the butt joint and the cable, wherein the cable comprises a plurality of core wires, an inner shielding layer wrapped outside the core wires, a metal braided layer wrapped outside the inner shielding layer, and an outer sheath wrapped outside the metal braided layer, wherein the metal braided layer comprises an outer turning portion turned outward to the outside of the outer layer, and further comprises a metal inner ring sleeved between the metal braided layer and the outer sheath, wherein the metal shell is electrically connected to the metal inner ring through the outer turning portion. The cable connector assembly of the present invention has good high frequency performance and anti-electromagnetic interference capability.

Description

[Technical field]

[0001] The present invention relates to a cable connector assembly and an assembly method thereof, and in particular to a cable connector assembly and an assembly method thereof with improved high frequency performance and anti-electromagnetic interference. [Background technology]

[0002] U.S. Patent Publication No. US7371118 discloses an electrical connector cable assembly, which includes an electrical connector, a cable electrically connected to the electrical connector, and an outer shell arranged outside the electrical connector and the cable. The electrical connector includes an insulating body, a plurality of conductive terminals accommodated in the insulating body, and a metal shell arranged outside the insulating body. The cable includes a plurality of core wires and an insulating layer covering the outer side of the core wires. The core wires are electrically connected to the corresponding conductive terminals, and the rear end of the metal shell is riveted to the insulating layer of the cable. The electrical connector cable assembly has poor anti-electromagnetic interference and high-frequency performance, and it is difficult to transmit signals above 8Gb / s. [Summary of the invention]

[0003] The main purpose of the present invention is to provide a cable connector assembly, which has good anti-electromagnetic interference and high-frequency performance and can transmit high-speed signals.

[0004] In order to solve the above technical problems, the present invention can adopt the following technical solutions: a cable connector assembly, comprising an electrical connector, a cable electrically connected to the electrical connector, and a shell arranged on the outside of the electrical connector and the cable, the electrical connector comprising a docking head, a metal shell arranged on the outside of the docking head and the cable, the cable comprising a plurality of core wires, an inner shielding layer wrapped around the outside of the core wires, a metal braided layer wrapped around the outside of the inner shielding layer, and an outer sheath wrapped around the outside of the metal braided layer, the metal braided layer comprising an outward turning portion turned outward to the outside of the outer layer, and further comprising a metal inner ring sleeved between the metal braided layer and the outer sheath, the metal shell being electrically connected to the metal inner ring through the outward turning portion.

[0005] The specific implementation structure is as follows:

[0006] The docking head comprises an insulating body, a metal shell arranged outside the insulating body, and a plurality of conductive terminals accommodated in the insulating body.

[0007] The metal shell comprises a main body and a tail connected to the main body and sleeved on the outer turn-over part of the metal braided layer of the cable.

[0008] The metal shell is a peripherally closed structure formed by a drawing process.

[0009] It further includes an intermediate metal shell disposed between the metal shell and the metal housing.

[0010] The front end of the intermediate metal shell is sleeved on the outer side of the metal shell, and the front end of the metal shell is sleeved on the outer side of the intermediate metal shell.

[0011] The intermediate metal shell comprises a front wall and a peripherally closed side wall extending backward from the front wall. The front wall is provided with a through hole, and the intermediate metal shell is sleeved on the outer side of the metal shell through the through hole.

[0012] A limiting protrusion is provided on the outer side of the metal shell to limit the matching position of the intermediate metal shell and the metal shell.

[0013] Another main purpose of the present invention is to provide an assembly method of a cable connector assembly, which has good anti-electromagnetic interference and high-frequency performance and can transmit high-speed signals.

[0014] To solve the above technical problems, the present invention may adopt the following technical solution: a method for assembling a cable connector assembly, comprising the following steps:

[0015] Provide a metal housing;

[0016] A cable is provided, the cable comprising a plurality of core wires, an inner shielding layer wrapped around the outer side of the core wires, a metal braided layer wrapped around the outer side of the inner shielding layer, and an outer sheath wrapped around the outer side of the metal braided layer, wherein the metal shell is sheathed on the outer side of the outer sheath of the cable, a section of the outer sheath is removed to expose a section of the metal braided layer, and the exposed section of the metal braided layer is turned over to the outer side of the outer sheath to form an outer-turned portion;

[0017] Providing an insulating body equipped with a plurality of conductive terminals, and electrically connecting the core wires to the corresponding conductive terminals;

[0018] Provide metal shell;

[0019] Providing an intermediate metal shell, the intermediate metal shell is first installed on the metal shell from back to front, and then the metal shell and the intermediate metal shell are installed on the insulating body from front to back, and the intermediate metal shell is installed between the metal shell and the metal shell;

[0020] A metal inner ring is further provided, wherein the metal inner ring is sleeved between the metal braided layer and the outer layer, and the metal shell is electrically connected to the metal inner ring through the outward turning portion.

[0021] The specific implementation structure is as follows:

[0022] The front end of the intermediate metal shell is sleeved on the outer side of the metal shell, and the front end of the metal shell is sleeved on the outer side of the intermediate metal shell.

[0023] Compared with the prior art, the advantages of the present invention are: the cable connector assembly of the present invention further adds a metal inner ring sleeved between the metal braided layer and the outer layer, and the metal shell is electrically connected to the metal inner ring through the outward turning part, so that it has better anti-electromagnetic interference and high-frequency performance, and can transmit high-speed signals.

Brief Description of the Drawings

[0024] Figure 1 is a three-dimensional diagram of a cable connector assembly according to the present invention.

[0025] Figure 2 yes Figure 1 Exploded view of the cable connector assembly shown.

[0026] Figure 3 yes Figure 2 An exploded view of another perspective of the cable connector assembly is shown.

[0027] Figure 4 is along Figure 1 Cross-sectional view along the AA direction.

[0028] Figure 5 The cable is along Figure 1 A cross-sectional view of the position shown.

[0029]

Main component symbol description

[0030] Cable connector assembly 100 Electrical connector 10

[0031] Butt joint 11 Insulation body 110

[0032] Metal shell 111 Limiting protrusion 1110

[0033] Conductive terminal 112 Metal housing 12

[0034] Main body 120 Tail 121

[0035] Intermediate metal shell 13 front wall 130

[0036] Through hole 1300 Side wall 131

[0037] Cable 20 Core Wire 21

[0038] Inner shielding layer 22 Metal braiding layer 23

[0039] Outer cover 24

[0040] Outer shell 30 Metal inner ring 40

[0041] The following specific implementation manner will further illustrate the present invention in conjunction with the above-mentioned drawings. [Specific implementation method]

[0042] like Figure 1-5 As shown, the HDMI cable connector assembly 100 of the present invention includes an electrical connector 10, a cable 20 electrically connected to the electrical connector 10, and a housing 30 disposed outside the electrical connector 10 and the cable 20. The electrical connector 10 includes a butt joint 11, a metal housing 12 disposed outside the butt joint 11 and the cable 20, and an intermediate metal shell 13. The cable 20 includes a plurality of core wires 21, an inner shielding layer 22 coated on the outer side of the core wires 21, a metal braided layer 23 coated on the outer side of the inner shielding layer 22, and an outer layer 24 coated on the outer side of the metal braided layer 23. The metal braided layer 23 includes an outer turning portion 230 turned outward to the outer side of the outer layer. The HDMI cable connector assembly 100 further includes a metal inner ring 40 sleeved between the metal braided layer 23 and the outer layer 24. The metal housing 12 is electrically connected to the metal inner ring 40 through the outer turning portion 230. The metal inner ring 40 has a closed periphery.

[0043] The docking connector 11 includes an insulating body 110, a metal shell 111 disposed outside the insulating body 110, and a plurality of conductive terminals 112 housed in the insulating body 110. Each conductive terminal 112 is directly welded to the corresponding core wire 21 to achieve electrical connection, and each conductive terminal 112 can also be directly or indirectly electrically connected to the corresponding core wire 21 through a transfer circuit board or other connection methods. The metal shell 111 is made by stamping a metal strip. A limiting protrusion 1110 is provided on the outside of the metal shell 111, and the limiting protrusion 1110 is arranged around the entire circumference of the outside of the metal shell 111.

[0044] The metal shell 12 is a peripherally closed structure formed by a drawing process. The metal shell 12 includes a main body 120 and a tail 121 connected to the main body 120. The tail 121 is sleeved on the outer turn-over portion 230 of the metal braided layer 23 of the cable. The tail 121 is riveted to the outer turn-over portion 230 of the metal braided layer 23. Thus, the metal shell 12 establishes an electrical connection with the metal inner ring 40 and the inner shielding layer 22 through the outer turn-over portion 230.

[0045] The intermediate metal shell 13 is arranged between the metal shell 111 and the metal shell 12. The front end of the intermediate metal shell 13 is sleeved on the outside of the metal shell 111, and the front end of the metal shell 12 is sleeved on the outside of the intermediate metal shell 13. The intermediate metal shell 13 includes a front wall 130 and a peripherally closed side wall 131 extending backward from the front wall 130. The front wall 130 is provided with a through hole 1300. The intermediate metal shell 13 is sleeved on the outside of the metal shell 111 through the through hole 1300, and the matching position of the intermediate metal shell 13 and the metal shell 111 is limited by the limiting protrusion 1110.

[0046] The housing 30 is integrally formed on the outer sides of the electrical connector 10 and the cable 20. The docking head 11 extends forward beyond the housing 30 to mate with the docking connector.

[0047] The assembling method of the HDMI cable connector assembly 100 comprises the following steps:

[0048] Providing the metal housing 12;

[0049] Provide the cable 20, sleeve the metal shell 12 on the outside of the outer layer 24 of the cable 20, remove a section of the outer layer 24 to expose a section of the metal braided layer 23, and turn the exposed section of the metal braided layer 23 to the outside of the outer layer 24 to form an outward turning portion 230;

[0050] Providing the insulating body 110 with the conductive terminals 112 installed thereon, and electrically connecting the core wires 21 to the corresponding conductive terminals 112;

[0051] Providing the metal shell 111;

[0052] Provide the intermediate metal shell 13, and sleeve the intermediate metal shell 13 onto the metal shell 111 from the back to the front. The limiting protrusion 1110 on the metal shell 111 will limit the fitting depth of the intermediate metal shell 13. Then, the metal shell 111 and the intermediate metal shell 13 installed together are installed on the insulating body 110 from the front to the back. The intermediate metal shell 13 is arranged between the metal shell 111 and the metal shell 12.

[0053] A metal inner ring 40 is further provided. The metal inner ring 40 is sleeved between the metal braided layer 23 and the outer layer 24 . The metal shell 12 is electrically connected to the metal inner ring 40 via the outward turning portion 230 .

[0054] The front end of the intermediate metal shell 13 is sleeved on the outer side of the metal shell 111 , and the front end of the metal shell 12 is sleeved on the outer side of the intermediate metal shell 13 .

[0055] The HDMI cable connector assembly 100 of the present invention further adds a metal inner ring 40 sleeved between the metal braided layer 23 and the outer layer 24, and the metal shell 12 is electrically connected to the metal inner ring 40 through the outer turning portion 230, so that it has better anti-electromagnetic interference and high-frequency performance, and can transmit 8Gb / s, 10Gb / s, 12Gb / s or even higher high-speed signals.

Claims

1. A cable connector assembly, comprising an electrical connector, a cable electrically connected to the electrical connector, and a housing disposed outside the electrical connector and the cable, wherein the electrical connector comprises a butt joint, a metal housing disposed outside the butt joint and the cable, the cable comprising a plurality of core wires, an inner shielding layer coated outside the core wires, a metal braided layer coated outside the inner shielding layer, and an outer sheath coated outside the metal braided layer, the metal braided layer comprising an outwardly turned portion turned outward to the outside of the outer sheath, characterized in that: It further includes a metal inner ring sleeved between the metal braided layer and the outer layer, the metal shell is electrically connected to the metal inner ring through the outward-turned portion, the metal shell includes a main body, and a tail portion connected to the main body and sleeved on the outward-turned portion of the metal braided layer of the cable, the metal shell is a peripherally closed structure formed by a drawing process, and the tail portion is riveted to the outward-turned portion of the metal braided layer.

2. The cable connector assembly according to claim 1, wherein: The docking head comprises an insulating body, a metal shell arranged outside the insulating body, and a plurality of conductive terminals accommodated in the insulating body.

3. The cable connector assembly according to claim 2, wherein: It further includes an intermediate metal shell disposed between the metal shell and the metal housing.

4. The cable connector assembly according to claim 3, wherein: The front end of the intermediate metal shell is sleeved on the outer side of the metal shell, and the front end of the metal shell is sleeved on the outer side of the intermediate metal shell.

5. The cable connector assembly according to claim 4, wherein: The intermediate metal shell comprises a front wall and a peripherally closed side wall extending backward from the front wall. The front wall is provided with a through hole, and the intermediate metal shell is sleeved on the outer side of the metal shell through the through hole.

6. The cable connector assembly according to claim 5, wherein: A limiting protrusion is provided on the outer side of the metal shell to limit the matching position of the intermediate metal shell and the metal shell.

7. A method for assembling a cable connector assembly, comprising the following steps: Provide a metal housing; A cable is provided, the cable comprising a plurality of core wires, an inner shielding layer wrapped around the outer side of the core wires, a metal braided layer wrapped around the outer side of the inner shielding layer, and an outer sheath wrapped around the outer side of the metal braided layer, wherein the metal shell is sheathed on the outer side of the outer sheath of the cable, a section of the outer sheath is removed to expose a section of the metal braided layer, and the exposed section of the metal braided layer is turned over to the outer side of the outer sheath to form an outer-turned portion; Providing an insulating body equipped with a plurality of conductive terminals, and electrically connecting the core wires to the corresponding conductive terminals; Provide metal shell; Providing an intermediate metal shell, the intermediate metal shell is first installed on the metal shell from back to front, and then the metal shell and the intermediate metal shell are installed on the insulating body from front to back, and the intermediate metal shell is installed between the metal shell and the metal shell; Features: A metal inner ring is further provided, which is sleeved between the metal braided layer and the outer layer, and the metal shell is electrically connected to the metal inner ring through the outward-turned portion. The metal shell is a peripherally closed structure formed by a drawing process, and the metal shell is riveted to the outward-turned portion of the metal braided layer.

8. The method for assembling a cable connector assembly according to claim 7, wherein: The front end of the intermediate metal shell is sleeved on the outer side of the metal shell, and the front end of the metal shell is sleeved on the outer side of the intermediate metal shell.

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