CN201498686U - Cable Connector Assembly - Google Patents

Abstract

The utility model discloses a cable connector component which comprises an insulating body provided with a plurality of terminal slots, a conductive terminal contained in the corresponding terminal slot of the insulating body, a circuit board electrically connected with the conductive terminal and a plurality of conductors connected on the circuit board, wherein the circuit board comprises a terminal weld zone and a weld line zone; the terminal weld zone is provided with a plurality of first conducting strips distributed on the upper and lower surfaces of the circuit board; the first conducting strips are electrically connected with the corresponding conductive terminals; the weld line zone is provided with a plurality of second conducting strips distributed on the upper surface and the lower surface of the circuit board; the second conducting strips are electrically connected with the corresponding conductors; the first conducting strips are electrically connected with the corresponding second conducting strips; and the number of the first conducting strips on the upper surface of the circuit board is different from that of the second conducting strips on the upper surface of the circuit board. By improving the arrangement mode of the tail part of terminals, the cable connector component facilitates weld and can effectively reduce the mutual interference during signal transmission.

Description

Cable Connector Assembly

【Technical field】

The utility model relates to a cable connector assembly, in particular to a cable connector assembly capable of effectively transmitting high-frequency signals.

【Background technique】

In order to meet the requirements of the consumer electronics market for connectors with small size and high transmission rate, in April 2002, seven companies including Hitachi, Panasonic, Philips, Silicon Image, Sony, Thomson, and Toshiba were established. The HDMI (High-definition Digital Multimedia Interface; high-definition digital multimedia interface) association began to formulate a new standard dedicated to digital video/audio transmission. HDMI is a fully digital image and sound transmission interface that can transmit uncompressed audio signals and video signals. HDMI can be used in set-top boxes, DVD players, personal computers, video game consoles, integrated amplifiers, digital audio and televisions. HDMI can transmit audio and video signals at the same time, because the same cable is used for audio and video signals, which greatly simplifies the installation of the system.

According to the HDMI transmission standard, Type-C HDMI has a total of 19 pins, and these 19 pins are arranged between 7.2mm, and the pin pitch is only 0.4mm. It is very difficult to solder such dense pins on the same plane. China Utility Model Announcement Patent No. CN2711949Y discloses a type A HDMI connector, which gives us some tips to solve the above soldering problems. The pins of type C HDMI can be soldered to both sides of the PCB board. This can increase the pin spacing and facilitate soldering. Both Type A and Type C HDMI include 19pins, which include 3 TMDS (Time Minimized Differential Signal, minimized transmission differential signal transmission technology) transmission channels for transmitting data, and 1 independent TMDS clock channel to ensure The unified timing required for transmission, each TMDS channel includes a pair of differential pair pins and a ground pin for transmitting differential signals, however, in the Chinese Utility Model Announcement Patent No. CN2711949Y, these four pairs of differential pair pins are welded On the two sides of the PCB board, when the signal is transmitted in this way, there will be a certain crosstalk between the signals on the two sides of the PCB, which will affect the signal transmission.

Therefore, it is necessary to improve the cable connector assembly to solve the above-mentioned defects in the prior art.

【Content of utility model】

The main purpose of the present invention is to provide a cable connector assembly with an improved structure, which can effectively reduce the crosstalk during signal transmission.

In order to achieve the above purpose, the utility model adopts the following technical solutions: a cable connector assembly, which includes an insulating body provided with a plurality of terminal grooves, conductive terminals accommodated in corresponding terminal grooves of the insulating body, and a connector electrically connected to the conductive terminals. A circuit board and a number of wires connected to the circuit board, the circuit board includes a terminal welding area and a welding wire area, the terminal welding area is provided with a number of first conductive sheets distributed on the circuit board and the lower surface, the first A conductive sheet is electrically connected to the corresponding conductive terminal, and the bonding wire area is provided with a number of second conductive sheets distributed on the circuit board and the lower two sides, and the second conductive sheet is electrically connected to the corresponding wire. The first conductive sheets are electrically connected to the corresponding second conductive sheets, and the number of the first conductive sheets on the upper surface of the circuit board is different from the number of the second conductive sheets on the upper surface of the circuit board.

In order to achieve the above purpose, the utility model can also adopt the following technical solutions: a cable connector assembly, which includes an insulating body provided with a plurality of terminal grooves, conductive terminals accommodated in corresponding terminal grooves of the insulating body, electrically connected conductive The circuit board of the terminal and some wires connected to the circuit board. The circuit board includes a terminal welding area and a welding line area. The terminal welding area is provided with a number of first conductive sheets distributed on the upper and lower surfaces of the front end of the circuit board. The first conductive sheet is electrically connected to the corresponding conductive terminal, and the bonding wire area is provided with a number of second conductive sheets distributed on the upper and lower surfaces of the rear end of the circuit board, and the second conductive sheet is electrically connected to the corresponding wire , the first conductive sheet is electrically connected to the corresponding second conductive sheet, the part of the first conductive sheet located on the upper surface of the circuit board is different from the part of the first conductive sheet located on the lower surface of the circuit board, and the distance between the conductive sheets is different. The part of the second conductive sheet located on the upper surface of the circuit board and the part of the second conductive sheet located on the lower surface of the circuit board have the same spacing between the conductive sheets.

Compared with the prior art, the utility model has the following beneficial effects: the cable connector assembly improves the arrangement of the terminal tails, which is convenient for welding and can effectively reduce crosstalk during signal transmission.

【Description of drawings】

Fig. 1 is a three-dimensional assembly view of the cable connector assembly of the present invention.

FIG. 2 is an exploded perspective view of the cable connector assembly shown in FIG. 1 .

Fig. 3 is a view from another perspective of the cable connector assembly shown in Fig. 2 .

Fig. 4 is a partial three-dimensional assembly view of the cable connector assembly of the present invention, wherein the insulating body and the shielding shell are removed.

Fig. 5 is a view from another perspective of the cable connector assembly shown in Fig. 4 .

Fig. 6 is a plan view of the lower surface of the circuit board of the cable connector assembly of the present invention.

FIG. 7 is a plan view of the upper surface of the circuit board shown in FIG. 6 .

【Detailed ways】

1 and 2, the cable connector assembly 100 of the present invention includes an insulating body 1, a plurality of conductive terminals 2, a circuit board 3 assembled at the rear end of the insulating body 1, and a shielding shell surrounded by the insulating body 1. 4 and some wires (not shown) connected to the circuit board 3.

Please refer to Figures 1 to 7, the front end of the insulating body 1 is surrounded by four walls to form a trapezoidal accommodation space 11 to accommodate the tongue plate of the docking connector (not shown), and a number of terminal grooves 12 are formed in the insulating body 1. The upper wall communicates with the accommodating space 11 for accommodating the conductive terminals 2 and allowing the conductive terminals 2 to be partially exposed in the accommodating space 11 . The rear end of the insulating body 1 is a connection surface 13 , and the connection surface 13 is recessed from back to front to form a receiving cavity 130 . A protruding portion 14 extending upward is provided at the position where the upper side of the insulating body 1 is connected to the connecting surface 13 . A pair of grooves 141 are arranged side by side on the protruding portion 14 . The grooves 141 are formed by being recessed forward from the connecting surface 13 . The surface where the front end of the protruding portion 14 is connected to the insulating housing 1 is the resisting surface 142 .

The front end of each conductive terminal 2 is an elastic butt joint part 21, which is inserted from the rear end to the front end of the insulating body 1 along the terminal groove 12. The butt joint parts 21 of the conductive terminals 2 are arranged in a row and exposed in the receiving space for electrical contact with the butt joint terminal. sexual contact. The middle section of the conductive terminal 2 is a holding portion 22 and the rear end is a welding portion 23 . The welding portion 23 protrudes from the connection surface 14 of the insulating body 1 and is arranged in two rows for electrical connection with the circuit board 3 . Some of the welding parts 23 of the conductive terminals 2 are bent during stamping to increase the welding area, while the welding parts 23 of the other conductive terminals 2 are flat, and their welding area is smaller than that of the bent welding parts 23 . In this embodiment, the conductive terminals are arranged sequentially from conductive terminal A to conductive terminal S, a total of 19 pieces, including four pairs of differential pair terminals for transmitting differential signals, namely BC, EF, HI, and KL, next to each pair of differential pair terminals There is one ground terminal, respectively A, D, G, J, the welding parts 23 of the four ground terminals are arranged in the first row, and the welding parts 23 of the four pairs of differential terminals are arranged in the second row, In this way, arranging the soldering portions 23 of the four pairs of differential terminals in the same row can minimize crosstalk during signal transmission. In this embodiment, the conductive terminals arranged in the first row of soldering parts 23 include seven, respectively A, D, G, J, M, P, and S, and the conductive terminals arranged in the second row of soldering parts 23 include 12, respectively B, C, E, F, H, I, K, L, N, O, Q, R, the spacing between the welding parts 23 of the conductive terminals arranged in the first row is larger than that arranged in The spacing between the soldering portions 23 of the second row of conductive terminals. The welding parts 23 of the first row of conductive terminals are all bent to form bent welding parts. The welding portions 23 of the conductive terminals in the second row are partly bent-shaped welding parts and partly flat-shaped welding parts, and the bent-shaped welding parts and the flat-shaped welding parts are arranged at intervals.

The circuit board 3 is generally convex, and its upper and lower surfaces are respectively formed with several conductive sheets. The narrower part of the front end of the circuit board 3 is the terminal welding area 31 including a plurality of first conductive sheets 311, and the wider part of the rear end is The wire bonding area 32 includes a plurality of second conductive sheets 321 , and a pair of connection portions 33 formed by the conductive sheets are provided on both sides of the wire bonding area 32 . The first conductive sheet 311 disposed on the upper surface is disposed corresponding to the first row of soldering portions 23 , and is denoted by a, d, g, j, m, p, and s respectively. The first conductive sheet 311 arranged on the lower surface corresponds to the welding portion 23 of the second row, and is respectively represented by b, c, e, f, h, i, k, l, n, o, q, r, which correspond to the first row The welding parts of the second row of conductive terminals are arranged at intervals of one small and one large. The spacing between the first conductive sheets 311 on the upper surface of the circuit board 3 is greater than the spacing between the first conductive sheets 311 on the lower surface of the circuit board 3 . For the convenience of welding wires (not shown), the second conductive strips 321 of the welding wire area 32 are dispersedly arranged so that the spacing of the second conductive strips 321 on the upper and lower surfaces is approximately equal. There are 9 second conductive sheets 321 on the upper surface, represented by a`, e`, f`, g`, k`, l`, m`, p`, s` respectively, and the second conductive sheet 321 on the lower surface of the circuit board 3 There are 10 two conductive sheets 321, represented by b`, c`, d`, h`, i`, j`, n`, o`, q`, r` respectively. The conductive terminals A to S are directly electrically connected to the corresponding first conductive sheets a to s by welding, the first conductive sheet 311 is connected to the corresponding second conductive sheet 321 through a conductive path, and the first conductive sheet on the upper surface a, g, m, p, s are directly connected to the second conductive sheets a`, g`, m`, p`, s` corresponding to the upper surface through conductive paths, and the first conductive sheets d, j on the upper surface pass through The transfer of the conductive path is connected to the second conductive sheet d`, j` corresponding to the lower surface, and the first conductive sheet b, c, h, i, n, o, q, r on the lower surface are directly connected to the lower surface through the conductive path. The second conductive sheets b`, c`, h`, i`, n`, o`, q`, r` corresponding to the surface are connected, and the first conductive sheets e, f, k, l on the lower surface pass through the conductive path The transitions are connected to the corresponding second conductive sheets e`, f`, k`, l` on the upper surface, so that the conductive terminals A to S are electrically connected to the corresponding second conductive sheets a` to s`.

The shielding housing 4 is a frame structure, which includes an upper wall 41, a lower wall 42 and a pair of side walls 43 connected to the upper and lower walls 41, 42. The rear end of the upper wall 41 is bent upward to form a rear end and The shielding portion 412 separated from the upper wall 41 is provided with a pair of locking pieces 4121 at the front of the shielding portion 412 , the rear ends of the locking pieces 4121 are connected to the shielding portion 412 , and the front ends are bent downward. A pair of protrusions 413 are formed on the upper wall 41 adjacent to the shielding portion 412 , and when the covering body (not shown) is formed, the molten liquid combines with the protrusions 413 to securely combine the shielding shell 4 with the covering body. The side wall 43 is provided with a slot 431 from the back to the front, and the front end of the slot 431 is provided with an inner wall 4311, which is more behind than the junction 4122 between the shielding part 412 and the upper wall 41, and the slot 431 also includes The top wall 4312 and the bottom wall 4313 opposite to the top wall 4312 . The rear end of the lower wall 42 sinks downward to form a recessed portion 421 to form a larger accommodation space, and the recessed portion 421 is disposed opposite to the shielding portion 412 .

Please refer to Figures 1 to 4, when assembling, the conductive terminal 2 is inserted into the terminal groove 12 of the insulating body 1 from the back to the front, and the front end butt joint part 21 is partially protruded in the receiving space 11, and then the circuit board 3 is inserted from the Assembled at the rear end of the insulating body 1 from the rear to the front, and the welding part 23 of the conductive terminal 2 is divided into two rows and contacts the first conductive sheet 311 on the upper and lower surfaces of the circuit board 3, and the terminal welding area 31 part at the front end of the circuit board 3 It is accommodated in the accommodation cavity 130 of the insulating body 1 . Then weld the welding portion 23 of the conductive terminal 2 to the corresponding first conductive sheet 311 , and then weld the wire to the corresponding second conductive sheet 321 . Then, the shielding shell 4 is assembled on the insulating body 1, the front end of which is surrounded by the insulating body 1, and the shielding part 412 and the recessed part 421 of the rear end protrude from the rear side of the insulating body 1 and are respectively located on the upper and lower sides of the circuit board 3. side, to shield the electrical connection of the circuit board 3 to reduce electromagnetic interference. The holding piece 4121 of the shielding case 4 is engaged in the groove 141 of the insulating body 1 to prevent the shielding case 4 from moving forward relative to the insulating body 1 . The connecting part 4122 of the shielding shell 4 abuts against the resisting surface 142 of the protrusion 14 to prevent the shielding shell 4 from moving backward. Both sides of the wire bonding area 32 of the circuit board 3 are accommodated in the slot 431 , and the connecting portion 33 on both sides of the circuit board 3 is welded to the top wall 4312 and the bottom wall 4313 of the slot 431 to prevent the circuit board 3 from shaking. After the above assembly is completed, an outer mold is overmolded on the rear end of the shielding body 4 .

The utility model cable connector assembly 100 divides the welding part 23 of the conductive terminal 2 into two layers and welds it on the upper and lower surfaces of the circuit board 3, and simultaneously arranges the welding parts 23 of four pairs of differential pair terminals for transmitting signals on the same plane , which can effectively reduce the crosstalk during signal transmission. In the cable connector assembly 100 of the present invention, the second conductive strips 321 of the welding wire area 32 are scattered and arranged so that the distance between the second conductive strips 321 on the upper and lower surfaces is approximately equal, thus increasing the second conductive strips as much as possible. The spacing of the sheets 321 greatly facilitates the welding of wires.

Claims (10)

1. A cable connector assembly, comprising an insulating body provided with several terminal grooves, conductive terminals accommodated in corresponding terminal grooves of the insulating body, a circuit board electrically connected to the conductive terminals, and a plurality of wires connected to the circuit board , characterized in that: the circuit board includes a terminal welding area and a welding line area, the terminal welding area is provided with a number of first conductive sheets distributed on the circuit board and the lower surface, and the first conductive sheets and corresponding conductive sheets The terminals are electrically connected, and the bonding wire area is provided with a number of second conductive sheets distributed on the lower and lower sides of the circuit board. The second conductive sheets are electrically connected to the corresponding wires, and the first conductive sheets are electrically connected to the Corresponding to the second conductive sheet, the number of the first conductive sheets located on the upper surface of the circuit board is different from the number of the second conductive sheets located on the upper surface of the circuit board. 2 . The cable connector assembly according to claim 1 , wherein the welding portions of the conductive terminals are arranged in two rows, and the welding portions of all differential pair terminals among the conductive terminals are arranged in the same row. 3 . 3. The cable connector assembly according to claim 1 or 2, wherein the conductive terminals comprise contact portions, and the contact portions are arranged in a row. 4. The cable connector assembly according to claim 3, wherein the circuit board is in a convex shape, the first conductive sheet is arranged at the narrow front end of the circuit board, and the second conductive sheet is arranged at The wider rear end of the circuit board. 5. The cable connector assembly according to claim 4, wherein the distance between the parts of the first conductive sheet located on the upper surface of the circuit board is different from the distance between the parts of the second conductive sheet located on the upper surface of the circuit board spacing. 6. The cable connector assembly according to claim 5, characterized in that: the cable connector assembly further comprises a shielding body, the insulating body is accommodated in the shielding body, and two sides of the circuit board are provided with The connecting part, the shielding body is welded to the connecting part of the circuit board. 7. The cable connector assembly according to claim 6, further comprising an outer mold overmolded on the rear end of the shielding body. 8. A cable connector assembly, comprising an insulating body provided with several terminal grooves, conductive terminals accommodated in corresponding terminal grooves of the insulating body, a circuit board electrically connected to the conductive terminals, and a plurality of wires connected to the circuit board, wherein The feature is that: the circuit board includes a terminal welding area and a welding line area, the terminal welding area is provided with a number of first conductive sheets distributed on the upper and lower surfaces of the front end of the circuit board, and the first conductive sheets and corresponding conductive terminals Electrically connected, the bonding wire area is provided with a number of second conductive sheets distributed on the upper and lower surfaces of the rear end of the circuit board, the second conductive sheets are electrically connected to the corresponding wires, and the first conductive sheets are electrically connected Connect the corresponding second conductive sheet, the distance between the first conductive sheet located on the upper surface of the circuit board and the part of the first conductive sheet located on the lower surface of the circuit board is different, and the second conductive sheet located on the upper surface of the circuit board The distance between the conductive sheets of the part and the part of the second conductive sheet located on the lower surface of the circuit board is the same. 9. The cable connector assembly according to claim 8, wherein the plurality of conductive terminals include a contact portion and a welding portion extending from the contact portion, and the contact portions of the plurality of conductive terminals are arranged in a row, so that The welding parts of the plurality of conductive terminals are arranged in two rows. 10 . The cable connector assembly according to claim 9 , wherein the plurality of conductive terminals include several pairs of differential pair terminals, and the welding parts of the differential pair terminals are all arranged in a same row. 11 .

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