Double-row lead electric connector for high-fidelity communication cable

Abstract

The invention provides a double-row lead electric connector for a high-fidelity communication cable, the electric connector comprises a plurality of mutually spliced connector modules, each connector module comprises a fixed base and a base body, the front end of the base body extends forwards along the length direction to form a first partition plate, and a second partition plate is arranged at the front end of the base body and extends forwards along the length direction to form a second partition plate; the front end of the base body is divided into two rows of first installation areas by the first partition plate, two rows of first installation holes are formed in the base body, and the two rows of first installation holes are located in the two sides of the first partition plate respectively and correspond to the two rows of first installation areas. The shielding support is installed at the front end of the first partition plate, two rows of second installation holes are formed in the shielding support, and the positions of the two rows of second installation holes correspond to the positions of the two rows of first installation holes respectively; the plurality of contact terminals are respectively mounted in the first mounting holes, and the front ends of the contact terminals extend out of the first mounting holes and are positioned in the corresponding first mounting areas; and the plurality of wires are respectively mounted in the second mounting holes, and the rear ends of the wires extend out of the second mounting holes and are positioned in the corresponding first mounting areas.

Description

Technical Field

[0001] The present invention relates to the field of electric connectors, and in particular to a double-row wire electric connector for high-fidelity communication cables. Background Art

[0002] The description in this section merely provides background information related to the present disclosure and may not constitute prior art.

[0003] In modern electronic devices, electrical connectors are key components for signal transmission, and their performance directly impacts system stability and reliability. As electronic devices evolve toward miniaturization and high-density integration, traditional single-row wire connectors are no longer able to meet the demands of high-density signal transmission. This is particularly true in fields such as communications equipment, industrial control, and aerospace, where it is often necessary to integrate more signal lines within limited space while also requiring compatibility with wires of varying specifications to accommodate complex application scenarios.

[0004] Existing electrical connectors typically have low conductor density, making it difficult to efficiently transmit multiple signals within a compact space. Furthermore, conductors of varying diameters typically require connectors of varying specifications, resulting in limited assembly flexibility and increased material management and production costs. Therefore, a new high-density electrical connector is urgently needed that can achieve high-density conductor layout within a limited space, improve signal transmission density, and accommodate conductors of varying specifications.

[0005] It should be noted that the above technical background is merely provided to provide a clear and complete description of the technical solutions of the present invention and to facilitate understanding by those skilled in the art. Simply because these solutions are described in the technical background section of the present invention, it should not be assumed that the above technical solutions are well known to those skilled in the art. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a double-row wire electrical connector for high-fidelity communication cables. To solve the above technical problems, a double-row wire electrical connector for high-fidelity communication cables is provided, the electrical connector comprising a plurality of interconnected connector modules, the connector modules comprising: a fixed base including a base body, a first partition extending forwardly from the front end of the base body along the longitudinal direction, the first partition dividing the front end of the base body into two rows of first mounting areas, the base body having two rows of first mounting holes, the two rows of first mounting holes being located on either side of the first partition and corresponding to the two rows of first mounting areas; a shielding bracket mounted at the front end of the first partition, the shielding bracket having two rows of second mounting holes, the positions of the two rows of second mounting holes being corresponding to the two rows of first mounting holes; a plurality of contact terminals respectively mounted in the first mounting holes, the tail ends of the contact terminals extending forwardly from the first mounting holes and located in the corresponding first mounting areas; a plurality of wires respectively mounted in the second mounting holes, the heads of the wires extending rearwardly from the second mounting holes and located in the corresponding first mounting areas, and the head of each wire being electrically connected to the tail end of the corresponding contact terminal.

[0007] Preferably, the shielding bracket includes a bracket body, a second partition plate extends from the front end of the bracket body along the length direction, the second partition plate divides the front end of the bracket body into two rows of second installation areas, the two rows of second mounting holes are arranged corresponding to the two rows of second mounting areas, and the part of the wire located in front of the second mounting hole is arranged in the corresponding second installation area.

[0008] Preferably, the two side surfaces of the first partition plate are respectively provided with a plurality of first guide grooves extending along the length direction, the first guide grooves are inwardly concave grooves with a circular arc-shaped cross-section, and each first guide groove is correspondingly located on the front side of a first mounting hole, and the tail end of the contact terminal is located in the first guide groove.

[0009] Preferably, the two side surfaces of the second partition plate are respectively provided with a plurality of second guide grooves extending along the length direction, the second guide grooves are inwardly concave grooves with arc-shaped cross-sections, and each second guide groove is correspondingly located on the front side of a second mounting hole, and the wires are installed in the second guide grooves.

[0010] Preferably, the two ends of the contact terminal are respectively a socket connection end and a wiring end, the socket connection end is installed in the first mounting hole, and the wiring end extends from the front end of the first mounting hole to the corresponding first guide groove, and the cross-section of the wiring end is semicircular and fits with the arc-shaped inner surface of the first guide groove.

[0011] Preferably, the wire includes, from the inside to the outside, an inner conductor, an insulating layer wrapped around the inner conductor, a shielding layer wrapped around the insulating layer, and an outer sheath wrapped around the shielding layer. After the wire head is stripped, the shielding layer extends backward beyond the outer sheath, the insulating layer extends backward beyond the shielding layer, the inner conductor extends backward beyond the insulating layer, the shielding layer contacts the shielding bracket, and the shielding bracket electrically connects the shielding layers of each wire to form an overall shielding structure.

[0012] Preferably, the portion of the shielding layer that extends beyond the outer sheath is located in the second guide groove and is fixed in the second guide groove by welding.

[0013] Preferably, the second guide grooves include short guide grooves and long guide grooves that are alternately arranged, and the shielding layer welding points corresponding to the short guide grooves are alternately arranged with the shielding layer welding points corresponding to the long guide grooves.

[0014] Preferably, the head of the inner conductor is located in the first guide groove and is electrically connected to the connection end of the corresponding contact terminal by welding.

[0015] Preferably, the front end of the first partition plate is provided with a plurality of positioning protrusions protruding forward, and the rear end of the shielding bracket is provided with a plurality of positioning grooves corresponding to the positioning protrusions. The positioning protrusions are inserted into the corresponding positioning grooves to realize the positioning of the fixed base and the shielding bracket.

[0016] By means of the above technical solution, the beneficial effects of the present invention are as follows:

[0017] The present invention discloses a dual-row electrical connector for high-fidelity communication cables, comprising multiple interconnected connector modules. A first partition divides the front end of the base into two rows of mounting areas. This, combined with the shielding bracket's dual rows of mounting holes, creates a double-layer, parallel layout of wires and contact terminals, enabling high-density wire integration within a limited space. Furthermore, the shielding bracket's second mounting hole is designed based on the maximum wire size, enabling the same connector to accommodate wires of varying sizes. This increases the product's applicability and assembly flexibility, making it particularly suitable for multi-signal transmission scenarios requiring mixed assembly of wires of varying diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the exploded structure of the connector module of the present application.

[0019] Figure 2 It is a structural schematic diagram of the contact terminal of this application.

[0020] Figure 3 It is a structural schematic diagram of the contact terminal of this application.

[0021] Figure 4It is a structural diagram of the fixed base of this application.

[0022] Figure 5 It is a schematic diagram of the end face structure of the fixed base of this application.

[0023] Figure 6 It is a structural schematic diagram of the shielding bracket of this application.

[0024] Figure 7 This is a schematic diagram of the end face structure of the shielding bracket of the present application.

[0025] Figure 8 It is a structural schematic diagram of the wire of this application.

[0026] Figure 9 It is a structural diagram of the connector module of this application.

[0027] Figure 10 yes Figure 9 Schematic diagram of the structure in the AA direction.

[0028] Among them: 1. Contact terminal; 11. Wiring terminal; 12. Jack connection terminal; 2. Fixed base; 21. Base body; 22. First mounting hole; 23. First partition plate; 24. First guide groove; 25. Positioning protrusion; 3. Shielding bracket; 31. Bracket body; 32. Second mounting hole; 33. Second partition plate; 34. Second guide groove; 341. Long guide groove; 342. Short guide groove; 4. Wire; 41. Inner conductor; 42. Insulation layer; 43. Shielding layer; 44. Outer sheath; 40. Head of the wire; 10. Tail end of the contact terminal. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] It should be noted that, in the description of the present invention, the terms "first," "second," etc., are used solely for descriptive purposes and to distinguish similar objects. There is no order of precedence between the two, nor should they be construed as indicating or implying relative importance. Furthermore, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0031] like Figure 1As shown, the present invention provides a double-row wire electrical connector for high-fidelity communication cables, the electrical connector includes a plurality of connector modules spliced ​​together, the connector module includes a fixed base 2, including a base body 21, the front end of the base body 21 extends forward along the length direction to form a first partition plate 23, the first partition plate 23 divides the front end of the base body 21 into two rows of first installation areas, the base body 21 is provided with two rows of first installation holes 22, the two rows of first installation holes 22 are respectively located on both sides of the first partition plate 23, and are arranged corresponding to the two rows of first installation areas; a shielding bracket 3 is installed at the front end of the first partition plate 23, the ... The shielding bracket 3 is provided with two rows of second mounting holes 32, which are positioned correspondingly to the two rows of first mounting holes 22. Preferably, the two rows of second mounting holes 32 are coaxially aligned with the two rows of first mounting holes 22. A plurality of contact terminals 1 are respectively mounted in the first mounting holes 22, with the tail ends 10 of the contact terminals 1 extending forward from the first mounting holes 22 and located in the corresponding first mounting areas. A plurality of wires 4 are respectively mounted in the second mounting holes 32, with the heads 40 of the wires 4 extending rearward from the second mounting holes 32 and located in the corresponding first mounting areas, and the head 40 of each wire 4 is electrically connected to the tail end 10 of the corresponding contact terminal 1. The front end of the first partition plate 23 is provided with a plurality of forwardly protruding positioning protrusions 25, and the rear end of the shielding bracket 3 is provided with a plurality of positioning grooves corresponding to the positioning protrusions 25. The positioning protrusions 25 are inserted into the corresponding positioning grooves to achieve positioning of the fixing base 2 and the shielding bracket 3. The dual-row electrical connector for conductors (4) of the present invention comprises multiple interconnected connector modules. A first partition plate 23 divides the front end of the base into two rows of mounting areas. Combined with the dual rows of mounting holes in the shielding bracket 3, this achieves a double-layer, parallel layout of conductors (4) and contact terminals (1), enabling high-density conductor (4) integration within a limited space. Furthermore, the second mounting hole 32 of the shielding bracket 3 is designed based on the maximum conductor (4) size, enabling the same connector to accommodate conductors (4) of varying sizes. This increases the product's applicability and assembly flexibility, making it particularly suitable for multi-signal transmission scenarios requiring mixed assembly of wires of varying diameters.

[0032] like Figure 6 and 7As shown, the shielding bracket 3 includes a bracket body 31. A second partition plate 33 extends longitudinally from the front end of the bracket body 31. The second partition plate 33 divides the front end of the bracket body 31 into two rows of second mounting areas. The two rows of second mounting holes 32 are arranged corresponding to the two rows of second mounting areas. The portions of the wires 4 located in front of the second mounting holes 32 are arranged within the corresponding second mounting areas. The first partition plate 23 and the second partition plate 33 each serve as a physical separation, allowing the wires 4 to be arranged in a double layer. This reduces the density of the wires 4 within a limited space, making it suitable for compact electronic devices.

[0033] like Figure 4 As shown, the two side surfaces of the first partition plate 23 are respectively provided with a plurality of first guide grooves 24 extending along the length direction. The first guide grooves 24 are inwardly concave grooves with a circular arc cross section, and each first guide groove 24 is correspondingly located in front of a first mounting hole 22. The tail end 10 of the contact terminal 1 is located in the first guide groove 24. Figure 6 As shown, the two side surfaces of the second partition plate 33 are respectively provided with a plurality of second guide grooves 34 extending along the length direction, the second guide grooves 34 are inwardly concave grooves with a circular arc cross-section, and each second guide groove 34 is correspondingly located on the front side of a second mounting hole 32, and the wire 4 is located in the second guide groove 34.

[0034] like Figure 3 As shown, the two ends of the contact terminal 1 are respectively a wiring terminal 11 and a socket connection end 12, the socket connection end 12 is installed in the first mounting hole 22, and the wiring terminal 11 extends from the front end of the first mounting hole 22 to the corresponding first guide groove 24. The cross-section of the wiring terminal 11 is semicircular and fits with the arc-shaped inner surface of the first guide groove 24.

[0035] like Figure 8 As shown, the wire 4 includes, from the inside to the outside, an inner conductor 41, an insulating layer 42 wrapped around the inner conductor 41, a shielding layer 43 wrapped around the insulating layer 42, and an outer sheath 44 wrapped around the shielding layer 43. After the wire (4) head 40 is stripped, the shielding layer 43 extends backward beyond the outer sheath 44, the insulating layer 42 extends backward beyond the shielding layer 43, and the inner conductor 41 extends backward beyond the insulating layer 42. The shielding layer 43 contacts the shielding bracket 3, and the shielding bracket 3 electrically connects the shielding layers 43 of each wire 4 to form an overall shielding structure.

[0036] like Figure 9 and 10As shown, the portion of the shielding layer 43 that extends beyond the outer sheath is located within the second guide groove 34 and can be secured within the second guide groove 34 by welding, crimping, or other connection methods. The head 40 of the inner conductor 41 is located within the first guide groove 24 and is electrically connected to the corresponding terminal 11 of the contact terminal 1 by welding. The shielding layer 43 of the conductor 4 within a single connector module forms a shielding structure through the shielding bracket 3, suppressing signal crosstalk. When multiple connector modules are spliced ​​together, the continuous connection of the shielding brackets 3 expands into an integrated shielding network, ensuring the stability of high-frequency signal transmission.

[0037] In a preferred embodiment, Figure 6 As shown, the second guide groove 34 includes alternating short guide grooves 342 and long guide grooves 341, and the welding points of the shielding layer 43 corresponding to the short guide grooves 342 are staggered with the welding points of the shielding layer 43 corresponding to the long guide grooves 341. If all welding points are arranged in the same position, heat will be concentrated during welding, which may cause local metal overheating, thermal stress deformation or degradation of material properties. In this embodiment, the staggered arrangement of welding points can disperse the heat-affected zone, reduce the overall risk of thermal deformation, and ensure the stability of the fit between the shielding layer 43 and the guide groove. In addition, the staggered arrangement of welding points can also improve space utilization. The specific arrangement method can be adapted according to the space limitations of the actual application scenario.

[0038] like Figure 1 As shown, the 'front' and 'back' directions described in this application are Figure 1 The wire 4 is located in front of the contact terminal 1 , and the head 40 of the wire 4 is connected to the tail end of the contact terminal 1 .

[0039] The above embodiments are merely preferred embodiments for the purpose of fully illustrating the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are within the scope of protection of the present invention. The scope of protection of the present invention shall be subject to the claims.

Claims

1. A double-row wire electrical connector for high-fidelity communication cables, characterized in that: The electrical connector includes a plurality of connector modules connected to each other, and the connector modules include: A fixed base (2) includes a base body (21), a first partition plate (23) extending forward from the front end of the base body (21) along the length direction, the first partition plate (23) dividing the front end of the base body (21) into two rows of first mounting areas, the base body (21) is provided with two rows of first mounting holes (22), the two rows of first mounting holes (22) are respectively located on both sides of the first partition plate (23), and are arranged corresponding to the two rows of first mounting areas; A shielding bracket (3) is mounted on the front end of the first partition plate (23), and the shielding bracket (3) is provided with two rows of second mounting holes (32), and the positions of the two rows of second mounting holes (32) are respectively arranged corresponding to the two rows of first mounting holes (22); A plurality of contact terminals (1) are respectively installed in the first installation holes (22), and the tail ends of the contact terminals (1) extend forward from the first installation holes (22) and are located in corresponding first installation areas; A plurality of wires (4) are respectively installed in the second mounting holes (32), the heads of the wires (4) extend rearwardly out of the second mounting holes (32) and are located in the corresponding first mounting areas, and the head of each wire (4) is electrically connected to the tail end of the corresponding contact terminal (1).

2. The electrical connector according to claim 1, wherein: The shielding bracket (3) includes a bracket body (31), a second partition plate (33) extending from the front end of the bracket body (31) along the length direction, the second partition plate (33) divides the front end of the bracket body (31) into two rows of second installation areas, the two rows of second installation holes (32) are arranged corresponding to the two rows of second installation areas, and the portion of the wire (4) located in front of the second installation hole (32) is arranged in the corresponding second installation area.

3. The electrical connector according to claim 2, wherein: The two side surfaces of the first partition plate (23) are respectively provided with a plurality of first guide grooves (24) extending along the length direction, the first guide grooves (24) are inwardly concave grooves with a circular arc cross section, and each first guide groove (24) is correspondingly located on the front side of a first mounting hole (22), and the tail end of the contact terminal (1) is located in the first guide groove (24).

4. The electrical connector according to claim 3, wherein: The two side surfaces of the second partition plate (33) are respectively provided with a plurality of second guide grooves (34) extending along the length direction, the second guide grooves (34) are inwardly concave grooves with a circular arc cross section, and each second guide groove (34) is correspondingly located on the front side of a second mounting hole (32), and the wire (4) is installed in the second guide groove (34).

5. The electrical connector according to claim 1, wherein: The two ends of the contact terminal (1) are respectively a socket connection end (12) and a wiring end (11); the socket connection end (12) is installed in the first mounting hole (22); the wiring end (11) extends from the front end of the first mounting hole (22) to the corresponding first guide groove (24); the cross section of the wiring end (11) is semicircular and fits with the arc-shaped inner surface of the first guide groove (24).

6. The electrical connector according to claim 3, wherein: The wire (4) comprises, from the inside to the outside, an inner conductor (41), an insulating layer (42) wrapped around the inner conductor (41), a shielding layer (43) wrapped around the insulating layer (42), and an outer sheath (44) wrapped around the shielding layer (43). After the head of the wire (4) is stripped, the shielding layer (43) extends backward beyond the outer sheath (44), the insulating layer (42) extends backward beyond the shielding layer (43), and the inner conductor (41) extends backward beyond the insulating layer (42). The shielding layer (43) contacts the shielding bracket (3), and the shielding bracket (3) electrically connects the shielding layers (43) of each wire (4) to form an integral shielding structure.

7. The electrical connector according to claim 6, wherein: The portion of the shielding layer (43) that extends beyond the outer sheath is located in the second guide groove (34) and is fixed in the second guide groove (34) by welding.

8. The electrical connector according to claim 7, wherein: The second guide groove (34) comprises short guide grooves (342) and long guide grooves (341) that are alternately arranged, and the shielding layer (43) welding points corresponding to the short guide grooves (342) and the shielding layer (43) welding points corresponding to the long guide grooves (341) are arranged in a staggered manner.

9. The electrical connector according to claim 6, wherein: The head of the inner conductor (41) is located in the first guide groove (24) and is electrically connected to the connection terminal (11) of the corresponding contact terminal (1) by welding.

10. The electrical connector according to claim 1, wherein: The front end of the first partition plate (23) is provided with a plurality of positioning protrusions (25) protruding forward, and the rear end of the shielding bracket (3) is provided with a plurality of positioning grooves corresponding to the positioning protrusions (25). The positioning protrusions (25) are inserted into the corresponding positioning grooves to realize the positioning of the fixed base (2) and the shielding bracket (3).

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