Flat cable connector and production process

Abstract

The invention discloses a production process of a flat cable connector. Providing a cable comprising a first row of core wires and a second row of core wires; a main rubber plug and an auxiliary rubber plug are provided, the auxiliary rubber plug is inserted into the main rubber plug to be tightly attached to the main rubber plug, and the first row of core wires are positioned; positioning the second row of core wires; a glue injection block wrapping one end of the main rubber plug cable is formed, and then the auxiliary rubber plug is loosened and taken down; peeling the first row of core wires and the second row of core wires outside the main rubber plug to expose the metal wire heads of the first row of core wires and the second row of core wires; the plug assembly is prepared in advance, the plug assembly is connected with the main rubber plug in an inserted mode, and a corresponding metal wire head and the plug assembly are welded and fixed. The invention also provides a flat cable connector. The machining area can be shortened, and the product performance is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, and in particular to a cable connector and a production process. Background Art

[0002] With the development of connector technology, high-speed, high-frequency transmission cable connectors have become the mainstream connector products. With the iteration of new-generation electronic products, higher requirements are placed on the bandwidth and performance of connectors.

[0003] The current cable connector requires an integrated rubber plug to position and fix the core wire during production. Specifically, a clamping groove is set at the front end of the integrated rubber plug to position the core wire for welding. This process will cause the core wire to be exposed too much. There are human factors in the welding process, which makes the distance between the welding processing area of ​​the terminal and the core wire too long, resulting in reduced product performance. The excessively long processing area makes it structurally unstable, which easily causes the risk of the terminal and the core wire falling off. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects in the prior art. The present invention provides a cable connector and a production process, which can reduce the processing area of ​​welding, improve product performance, and make the welding structure more solid.

[0005] To achieve the above object, the present invention provides a production process of a cable connector, comprising the following steps:

[0006] S1: providing a cable including a first row of core wires and a second row of core wires;

[0007] S2: Provide a main rubber plug and an auxiliary rubber plug, insert the auxiliary rubber plug into the main rubber plug and fit it tightly, and clamp the first row of core wires in the first placement groove of the rubber plug and the first clamping groove of the auxiliary rubber plug in sequence for positioning;

[0008] S3: Turn over the main rubber plug and the auxiliary rubber plug, and sequentially clamp the second row of core wires in the second placement groove of the rubber plug and the second clamping groove of the auxiliary rubber plug for positioning;

[0009] S4: placing the cable and the main rubber plug inside a molding machine, and the molding machine injects glue into the connection between the cable and the main rubber plug to form a glue injection block that wraps one end of the main rubber plug and the cable, and after completion, loosen and remove the auxiliary rubber plug;

[0010] S5: peeling the first row of core wires and the second row of core wires placed outside the main rubber plug to expose their metal wire ends, and trimming and aligning the metal wire ends;

[0011] S6: Prepare the plug assembly in advance, plug the plug assembly into the main rubber plug, and weld and fix the corresponding metal wire ends to the plug assembly.

[0012] Furthermore, in S2, a first plug-in hole is opened on the front end face of the main rubber plug, and the auxiliary rubber plug is provided with a first cylinder matching the first plug-in hole. The auxiliary rubber plug is tightly plugged into the main rubber plug through the cooperation of the first cylinder and the first plug-in hole, so that the first fixing groove and the second fixing groove on the auxiliary rubber plug are respectively connected with the first placement groove and the second placement groove on the main rubber plug.

[0013] Furthermore, the plug assembly in the S6 includes a front shell, a terminal connection seat and a connection terminal mounted on the terminal connection seat, and a terminal mounting groove matching the position and number of the first placement groove and the second placement groove is provided on the terminal connection seat. The connection terminal is installed in the terminal mounting groove, and a second column matching the first plug-in hole is provided on the rear side of the terminal connection seat. The plug assembly is tightly fitted with the main rubber plug through the second column, so that the terminal mounting groove abuts against the first placement groove and the second placement groove.

[0014] Furthermore, the side wings of the terminal connection seat extend to form a first snap-fit ​​piece, and concave snap-fit ​​grooves are formed on both sides of the main rubber plug. A protruding top connection block is provided in the snap-fit ​​groove. After the first snap-fit ​​piece of the terminal connection seat is inserted into the snap-fit ​​groove, it abuts against the top connection block, and the top connection block limits the movement of the first snap-fit ​​piece.

[0015] Furthermore, the upper and lower ends of the terminal connection seat are both provided with second buckling members, and the front shell is provided with a third buckling groove matching the second buckling member.

[0016] Furthermore, in S6, the metal wire ends are first tinned, and after completion, the plug assembly is inserted into the main rubber plug, and the metal wire ends are pressed into the terminal mounting grooves in turn to connect with the corresponding connecting terminals, and then the metal wire ends and the connecting terminals are welded by a high-frequency soldering machine.

[0017] Furthermore, the front-to-back thickness of the auxiliary rubber plug in S2 is 0.4-0.5 mm.

[0018] Furthermore, the middle position of the main rubber plug extends toward the cable direction to form a guide portion.

[0019] Further, the first fixing groove includes a first arc-shaped fixing groove for fixing the front end of the first row of core wires and a first protrusion for limiting the front end of the first row of core wires, the first protrusion is provided with a first inclined surface for guiding the first row of core wires to enter on the upper side, and the first protrusion is formed with a first fixing portion for fixing the first row of core wires on the other side of the first inclined surface;

[0020] The second fixing groove includes a second arc wrapping groove for wrapping the front end portion of the second row of core wires and a second protrusion for limiting the front end portion of the second row of core wires. The upper side of the second protrusion is provided with a second inclined surface for guiding the second row of core wires to enter. The second protrusion forms a second clamping portion for fixing the second row of core wires relative to the other side of the first inclined surface.

[0021] Also provided is a cable connector prepared by the above production process, including a cable, a main rubber plug, a rubber injection block and a plug assembly;

[0022] The cable comprises a first row of core wires and a second row of core wires;

[0023] The main rubber plug is arranged in front of the cable, and a first placement groove and a second placement groove are respectively arranged on the upper and lower sides of the main rubber plug, the first row of core wires are clamped in the first placement groove on the rubber plug, and the second row of core wires are clamped in the second placement groove on the rubber plug;

[0024] The injection block is integrally formed by injection molding, and the injection block wraps the main rubber plug and the connection between the main rubber plug and the cable;

[0025] The plug assembly includes a front shell, a terminal connection seat and a connecting terminal mounted on the terminal connection seat. The terminal connection seat is provided with a terminal mounting groove that matches the position and number of the first placement groove and the second placement groove. The connecting terminal is installed in the terminal mounting groove and a second column that matches the first plug hole is provided on the rear side of the terminal connection seat. The plug assembly is tightly fitted with the main rubber plug through the second column, so that the terminal mounting groove abuts against the first placement groove and the second placement groove, and the front shell wraps the terminal connection seat.

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention adopts a split structure of a main rubber plug and an auxiliary rubber plug, the auxiliary rubber plug is used to clamp and fix the front ends of the first row of core wires and the second row of core wires, and the main rubber plug is used to guide and support the first row of core wires and the second row of core wires. After the injection of glue is completed, the auxiliary rubber plug is removed, and then the plug assembly is inserted into the main rubber plug, and then the first row of core wires and the second row of core wires are pressed into the terminal mounting groove and connected to the connecting terminal and welded. This can effectively shorten the distance between the main rubber plug and the terminal connecting seat, thereby shortening the welding processing area between the cable and the connecting terminal, which can effectively reduce the influence of human factors, improve the performance of the product, and the result is better welding firmness. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 It is a flow chart of a production process of a cable connector provided by the present invention;

[0029] Figure 2 It is a structural schematic diagram of a cable connector provided by the present invention;

[0030] Figure 3 yes Figure 2 Schematic diagram of the decomposition of

[0031] Figure 4 is a schematic diagram of a cable provided by the present invention;

[0032] Figure 5 It is a schematic diagram of the operation of the main rubber plug, the auxiliary rubber plug and the cable provided by the present invention;

[0033] Figure 6 yes Figure 5 Front view of the diagram;

[0034] Figure 7 It is a structural schematic diagram of the main rubber plug provided by the present invention;

[0035] Figure 8 It is a structural schematic diagram of the auxiliary rubber plug provided by the present invention.

[0036] Included in the figure are:

[0037] 1. Cable; 11. First row of core wires; 12. Second row of core wires; 2. Main rubber plug; 21. First plug-in hole; 22. First placement groove; 23. Second placement groove; 24. Guide part; 25. Snap-on groove; 251. Top connection block; 3. Auxiliary rubber plug; 31. First column; 32. First fixing groove; 321. First protrusion; 322. First inclined surface; 323. First snap-on part; 324. First arc wrapping groove; 33. Second fixing groove; 331. Second protrusion; 332. Second inclined surface; 333. Second snap-on part; 334. Second arc wrapping groove; 4. Glue injection block; 5. Plug assembly; 51. Front shell; 511. Third snap-on groove; 52. Terminal connection seat; 521. Terminal mounting groove; 522. Second column; 53. Connecting terminal; 523. First snap-on part. DETAILED DESCRIPTION

[0038] The technical scheme in this embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in this embodiment of the present invention. Obviously, the described embodiment is one embodiment of the present invention, not all embodiments of the present invention. Based on this embodiment of the present invention, all other embodiments of the present invention obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] See also Figures 1 to 8 , an embodiment of the present invention provides a production process of a cable connector, comprising the following steps:

[0040] S1: Provide a cable 1 including a first row of core wires 11 and a second row of core wires 12. In this embodiment, the first row of core wires 11 are placed on the upper layer of the main rubber plug 2, and the second row of core wires are placed on the lower layer of the main rubber plug 2. The first row of core wires 11 and the second row of core wires 12 can be ground wires, twisted pairs for transmitting signals, spare wires, etc.;

[0041] S2: Provide a main rubber plug 2 and an auxiliary rubber plug 3, and insert the auxiliary rubber plug 3 into the main rubber plug 2 to fit tightly. Specifically, a first plug hole 21 is opened on the front end surface of the main rubber plug 2, and the auxiliary rubber plug 3 is provided with a first column 31 matching the first plug hole 21. The auxiliary rubber plug 3 is plugged and tightly fitted with the main rubber plug 2 through the cooperation of the first column 31 and the first plug hole 21, so that the first fixing groove 32 and the second fixing groove 33 on the auxiliary rubber plug 3 are respectively connected with the first placement groove 22 and the second placement groove 23 on the main rubber plug 2. It should be noted that the thickness of the auxiliary rubber plug 3 in this step is 4.5 mm, and it can also be adjusted according to actual needs. The thickness thereof is increased or decreased, for example, it can be 4mm, 4.2mm, 4.7mm or 5mm, etc. The middle position of the main rubber plug 2 extends toward the cable 1 to form a guide portion 24, the first fixing groove 32 includes a first arc-wrapping groove 324 for wrapping the front end of the first row of core wires 11 and a first protrusion 321 for limiting the front end of the first row of core wires 11, the first protrusion 321 is provided with a first inclined surface 322 for guiding the first row of core wires 11 to enter, and the first protrusion 321 is formed with a first clamping portion 323 for clamping the first row of core wires 11 on the other side of the first inclined surface 322;

[0042] Then, the first row of core wires 11 are sequentially clamped in the first placement groove 22 of the rubber plug and the first clamping groove 32 of the auxiliary rubber plug 3 for positioning. The specific process is as follows: first, the first row of core wires 11 are inserted into the first placement groove 22 according to the standard, and the guide part 24 is set in the middle to support the wire ends in the middle of the first row of core wires 11, so that a skeleton is formed during the injection of glue to improve the rigidity of the structure, and then each group of first row of core wires 11 is pressed into the first arc wrapping groove 324 along the first inclined surface 322, and the first row of core wires 11 are pressed by the first clamping part 323 of the first protrusion 321, so that the first row of core wires 11 are positioned;

[0043] S3: Turn over the main rubber plug 2 and the auxiliary rubber plug 3, the second fixing groove 33 includes a second arc-shaped wrapping groove 334 for wrapping the front end of the second row of core wires 12 and a second protrusion 331 for limiting the front end of the second row of core wires 12, the upper side of the second protrusion 331 is provided with a second inclined slope 332 for guiding the second row of core wires 12 to enter, and the second protrusion 331 is opposite to the other side of the first inclined slope 322 to form a second clamping portion 333 for clamping the second row of core wires 12, and the second row of core wires 12 are clamped. The second row of core wires 12 are sequentially clamped in the second placement groove 23 of the rubber plug and the second clamping groove 33 of the auxiliary rubber plug 3 for positioning. The guide portion 24 also extends to the middle of the second placement groove 23. The middle wire head of the second row of core wires 12 also passes through the guide portion 24 and then enters the second placement groove 23. Then, it is pressed into the second arc wrapping groove 334 along the second inclined surface 332. The second row of core wires 12 are pressed by the second clamping portion 333 of the second protrusion 331, so that the second row of core wires 12 are positioned.

[0044] S4: placing the cable 1 and the main rubber plug 2 inside the molding machine, and the molding machine injects glue into the connection part of the cable 1 and the main rubber plug 2 to form a glue injection block 4 that wraps one end of the main rubber plug 2 and the cable 1. After completion, the auxiliary rubber plug 3 is loosened and removed. At this time, the glue injection block 4 stably fixes the first row of core wires 11 and the second row of core wires 12 in the main rubber plug 2;

[0045] S5: The first row of core wires 11 and the second row of core wires 12 outside the main rubber plug 2 are peeled using a laser peeling machine to expose their metal wire ends, and the metal wire ends are trimmed and aligned. It should be noted that the peeling position is flush with the outer edge of the main rubber plug 2;

[0046] S6: The plug assembly 5 is prepared in advance, specifically, the plug assembly 5 includes a front shell 51, a terminal connection seat 52, and a connection terminal 53 mounted on the terminal connection seat 52. The terminal connection seat 52 is provided with a terminal installation groove 521 that matches the position and number of the first placement groove 22 and the second placement groove 23. The connection terminal 53 is installed in the terminal installation groove 521 and a second column 522 that matches the first plug hole 21 is provided on the rear side of the terminal connection seat 52. The plug assembly 5 is tightly fitted with the main rubber plug 2 through the second column 522, so that the terminal installation groove 521 is in contact with the main rubber plug 2. The first placement groove 22 and the second placement groove 23 are abutted, and a first buckle 523 is extended on the side of the terminal connection seat 52. Concave buckle grooves 25 are formed on both sides of the main rubber plug 2. A raised top block 251 is provided in the buckle groove 25. After the first buckle 523 of the terminal connection seat 52 is inserted into the buckle groove 25, it abuts against the top block 251. The top block 251 limits the movement of the first buckle 523. The second buckle 523 is provided at both upper and lower ends of the terminal connection seat 52. The front shell 51 is provided with a third buckle groove 511 matching the second buckle 523.

[0047] Prefabrication of the plug assembly 5: first install the connecting terminals 53 one by one in the terminal mounting grooves 521, and then directly insert the front shell 51 from the front side of the terminal mounting grooves 521 until the third snap-fit ​​groove 511 and the second snap-fit ​​member 523 are snap-fitted to each other. After the snap-fit ​​is further completed, the front shell 51 and the terminal connection can be welded and locked.

[0048] First, tin the metal wire ends, and then insert the plug assembly 5 into the main rubber plug 2. Specifically, first align the second column 522 of the terminal connecting seat 52 with the first plug hole 21 and insert it. The first snap-on parts 523 arranged on the two side wings of the terminal connecting seat 52 simultaneously enter the snap-on groove 25. Finally, the inner wall of the first snap-on part 523 is supported by the top block 251 to lock it. At this time, the plug assembly 5 and the main rubber plug 2 are plugged in. Then, the corresponding metal wire ends are welded and fixed to the plug assembly 5. Then, the metal wire ends are pressed into the terminal mounting groove 521 in turn to connect with the corresponding connecting terminal 53, and then the metal wire ends and the connecting terminal 53 are welded in a high-frequency soldering machine.

[0049] In this embodiment, a flat cable connector made by the above process is also provided, including a cable 1, a main rubber plug 2, a rubber injection block 4 and a plug assembly 5;

[0050] The cable 1 comprises a first row of core wires 11 and a second row of core wires 12;

[0051] The main rubber plug 2 is arranged in front of the cable 1, and a first placement groove 22 and a second placement groove 23 are respectively arranged on the upper and lower sides of the main rubber plug 2, the first row of core wires 11 are clamped in the first placement groove 22 on the rubber plug, and the second row of core wires 12 are clamped in the second placement groove 23 on the rubber plug;

[0052] The injection block 4 is integrally formed by injection molding, and the injection block 4 wraps the main rubber plug 2 and the connection between the main rubber plug 2 and the cable 1;

[0053] The plug assembly 5 includes a front shell 51, a terminal connection seat 52 and a connection terminal 53 installed on the terminal connection seat 52. The terminal connection seat 52 is provided with a terminal mounting groove 521 that matches the position and number of the first placement groove 22 and the second placement groove 23. The connection terminal 53 is installed in the terminal mounting groove 521 and a second column 522 that matches the first plug hole 21 is provided on the rear side of the terminal connection seat 52. The plug assembly 5 is tightly fitted with the main rubber plug 2 through the second column 522, so that the terminal mounting groove 521 is abutted against the first placement groove 22 and the second placement groove 23, and the front shell 51 wraps the terminal connection seat 52.

[0054] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A production process for a flat cable connector, characterized in that: The steps include: S1: providing a cable (1) comprising a first row of core wires (11) and a second row of core wires (12); S2: providing a main rubber plug (2) and an auxiliary rubber plug (3), inserting the auxiliary rubber plug (3) onto the main rubber plug (2) to fit tightly, and sequentially clamping the first row of core wires (11) into the first placement groove (22) of the rubber plug and the first clamping groove (32) of the auxiliary rubber plug (3) for positioning; S3: turning over the main rubber plug (2) and the auxiliary rubber plug (3), and sequentially clamping the second row of core wires (12) in the second placement groove (23) of the rubber plug and the second clamping groove (33) of the auxiliary rubber plug (3) for positioning; S4: placing the cable (1) and the main rubber plug (2) inside a molding machine, and injecting glue into the connection between the cable (1) and the main rubber plug (2) to form a glue injection block (4) that wraps the main rubber plug (2) and one end of the cable (1). After completion, the auxiliary rubber plug (3) is loosened and removed; S5: peeling the first row of core wires (11) and the second row of core wires (12) placed outside the main rubber plug (2) to expose their metal wire ends, and trimming and aligning the metal wire ends; S6: Prepare the plug assembly (5) in advance, plug the plug assembly (5) into the main rubber plug (2), and fix the corresponding metal wire ends and the plug assembly (5) by welding.

2. The production process of a flat cable connector according to claim 1, characterized in that: In the S2, a first plug hole (21) is provided on the front end surface of the main rubber plug (2), and the auxiliary rubber plug (3) is provided with a first column (31) matching the first plug hole (21). The auxiliary rubber plug (3) is plugged and tightly connected with the main rubber plug (2) through the cooperation of the first column (31) and the first plug hole (21), so that the first fixing groove (32) and the second fixing groove (33) on the auxiliary rubber plug (3) are respectively connected with the first placement groove (22) and the second placement groove (23) on the main rubber plug (2).

3. The production process of a flat cable connector according to claim 2, characterized in that: The plug assembly (5) in the S6 comprises a front shell (51), a terminal connection seat (52) and a connection terminal (53) mounted on the terminal connection seat (52); a terminal mounting groove (521) matching the position and number of the first placement groove (22) and the second placement groove (23) is provided on the terminal connection seat (52); the connection terminal (53) is installed in the terminal mounting groove (521); a second column (522) matching the first plug hole (21) is provided on the rear side of the terminal connection seat (52); the plug assembly (5) is tightly fitted with the main rubber plug (2) through the second column (522), so that the terminal mounting groove (521) abuts against the first placement groove (22) and the second placement groove (23).

4. The production process of a flat cable connector according to claim 3, characterized in that: The side wings of the terminal connection seat (52) extend to form a first buckle (523), and concave buckle grooves (25) are formed on both sides of the main rubber plug (2). A protruding top-connecting block (251) is provided in the buckle groove (25). After the first buckle (523) of the terminal connection seat (52) is inserted into the buckle groove (25), it abuts against the top-connecting block (251), and the top-connecting block (251) limits the movement of the first buckle (523).

5. The production process of a flat cable connector according to claim 3, characterized in that: The upper and lower ends of the terminal connection seat (52) are both provided with second buckling members (523), and the front housing (51) is provided with a third buckling groove (511) matching the second buckling member (523).

6. The production process of a flat cable connector according to claim 1, characterized in that: In S6, the metal wire ends are first tinned, and after completion, the plug assembly (5) is inserted into the main rubber plug (2), and the metal wire ends are pressed into the terminal installation grooves (521) in turn to connect with the corresponding connecting terminals (53), and then the metal wire ends and the connecting terminals (53) are welded using a high-frequency soldering machine.

7. The production process of a flat cable connector according to claim 1, characterized in that: The front-to-back thickness of the auxiliary rubber plug (3) in S2 is 0.4-0.5 mm.

8. The production process of a flat cable connector according to claim 1, characterized in that: The middle position of the main rubber plug (2) extends towards the cable (1) to form a guide portion (24).

9. The production process of a flat cable connector according to claim 1, characterized in that: The first fixing groove (32) comprises a first arc-shaped fixing groove (324) for fixing the front end of the first row of core wires (11) and a first protrusion (321) for limiting the front end of the first row of core wires (11); a first inclined surface (322) for guiding the first row of core wires (11) to enter is provided on the upper side of the first protrusion (321); and a first fixing portion (323) for fixing the first row of core wires (11) is formed on the other side of the first protrusion (321) relative to the first inclined surface (322); The second fixing groove (33) comprises a second arc-shaped fixing groove (334) for fixing the front end of the second row of core wires (12) and a second protrusion (331) for limiting the front end of the second row of core wires (12); a second inclined surface (332) for guiding the second row of core wires (12) to enter is provided on the upper side of the second protrusion (331); and a second fixing portion (333) for fixing the second row of core wires (12) is formed on the other side of the second protrusion (331) relative to the first inclined surface (322).

10. A cable connector manufactured using the production process according to any one of claims 1 to 9, characterized in that: It comprises a cable (1), a main rubber plug (2), a rubber injection block (4) and a plug assembly (5); The cable (1) comprises a first row of core wires (11) and a second row of core wires (12); The main rubber plug (2) is arranged in front of the cable (1), and a first placement groove (22) and a second placement groove (23) are respectively arranged on the upper and lower sides of the main rubber plug (2); the first row of core wires (11) are clamped inside the first placement groove (22) on the rubber plug, and the second row of core wires (12) are clamped inside the second placement groove (23) on the rubber plug; The injection block (4) is integrally formed by injection molding, and the injection block (4) wraps the main rubber plug (2) and the connection between the main rubber plug (2) and the cable (1); The plug assembly (5) comprises a front shell (51), a terminal connection seat (52) and a connection terminal (53) mounted on the terminal connection seat (52); a terminal installation groove (521) matching the position and number of the first placement groove (22) and the second placement groove (23) is provided on the terminal connection seat (52); the connection terminal (53) is installed in the terminal installation groove (521); a second column (522) matching the first plug hole (21) is provided on the rear side of the terminal connection seat (52); the plug assembly (5) is tightly fitted with the main rubber plug 2 through the second column (522), so that the terminal installation groove (521) abuts against the first placement groove (22) and the second placement groove (23); and the front shell (51) wraps the terminal connection seat (52).

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