CN218300302U

CN218300302U - Cable connector

Info

Publication number: CN218300302U
Application number: CN202221909946.6U
Authority: CN
Inventors: 杨文初; 唐辉; 王晓栋; 吕涛; 刘振兴; 李杭; 冯绍奎
Original assignee: Amphenol Assembletech Xiamen Co Ltd
Current assignee: Amphenol Assembletech Xiamen Co Ltd
Priority date: 2022-07-20
Filing date: 2022-07-20
Publication date: 2023-01-13
Anticipated expiration: 2032-07-20

Abstract

The utility model discloses a cable connector, include: the connector comprises a connector body, a cable, a circuit board and an outer die; the connector body comprises a plastic main body and a signal terminal group, a first socket which is communicated along a first direction is arranged in the plastic main body, and the signal terminal group is arranged in the first socket; the end part of the cable is bent, a bent first end is electrically connected with the signal terminal group along a first direction, a bent second end extends out of the plastic main body along a second direction, and the second direction is perpendicular to the first direction; the circuit board is arranged on the plastic main body along a second direction and fixed on two sides of the plastic main body, the circuit board is positioned on the inner side of the cable, and the second end of part of the cable is electrically connected with the circuit board; the outer mold is formed by injecting an insulating material at the joint of the first end and the second end of the cable, and covers the electric connection area of the signal terminal group and the cable. The utility model discloses compact structure has reduced the length and size of connector, is favorable to realizing miniaturized structural design.

Description

Cable connector

Technical Field

The utility model relates to an electric connector field, concretely relates to cable connector.

Background

With the development of products such as servers and switches, the signal integrity requirements of connectors and cable assemblies mounted on the products of servers and switches are higher and higher, and the miniaturization of servers and switches requires the size of the connectors to be smaller and smaller. The existing connector is provided with a circuit board structure, a cable is welded on a terminal in a linear mode, and due to the requirement of wiring on the circuit board, the size of the whole connector is large.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cable connector to optimize the structure of connector and lay, reduce overall dimension. In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model discloses a cable connector, include: the connector body comprises a plastic main body and a signal terminal group, a first socket which is communicated along a first direction is arranged in the plastic main body, and the signal terminal group is arranged in the first socket; the end part of the cable is bent, a bent first end is electrically connected with the signal terminal group along a first direction, a bent second end extends out of the plastic main body along a second direction, and the second direction is perpendicular to the first direction; the circuit board is arranged on the plastic main body along a second direction and fixed on two sides of the plastic main body, the circuit board is positioned on the inner side of the cable, and the second end of part of the cable is electrically connected with the circuit board; the outer mold is formed by injecting an insulating material at the joint of the first end and the second end of the cable, and covers the electric connection area of the signal terminal group and the cable.

Furthermore, the circuit board is an integrated board and comprises a first end part, a second end part and a connecting part, the connecting part is connected with the first end part and the second end part, and the width of the connecting part is smaller than that of the first end part and that of the second end part; the first end part and the second end part are respectively fixed at two side ends of the plastic main body, the connecting part is positioned at the inner side of the bend of the cable, and a gap is formed between the connecting part and the end part of the outer die.

Preferably, the thickness of the cable is set to a, and the gap is set to 1a to 10a.

The signal terminal group comprises a first signal terminal, a second signal terminal and a grounding terminal, the cable comprises a first signal cable and a second signal cable, one end of the first signal cable is connected with the first signal terminal, and the other end of the first signal cable is connected to the circuit board; the second signal cable is connected with the second signal terminal; the first signal terminal and the first signal cable are used for transmitting sideband signals, and the second signal terminal and the second signal cable are used for transmitting high-speed signals.

The plastic main body is further provided with a second jack on one side of the first jack, the power terminal group is arranged in the second jack and comprises a plurality of fisheye terminals, a plurality of positioning columns are arranged on the two sides of the fisheye terminals of the plastic main body, and the end parts of the positioning columns protrude out of the fisheye terminals; the circuit board is provided with a contact hole and a positioning groove, the positioning column is installed in the positioning groove, and the fisheye terminal is inserted into the contact hole to be electrically connected with the circuit board.

Preferably, the circuit board is provided with a chip, a first signal external cable and a power signal external cable; the power terminal group is connected to the circuit board and is directly conducted with a power external cable, or the power terminal group is connected to the circuit board and is connected and conducted with the chip, and the chip is connected with the power external cable; the first signal cable is connected to the circuit board and is connected and conducted with the chip, and the chip is connected with the first signal external cable.

The connector body further comprises conductive plastic and an insulating rear plug; the grounding terminal is connected and conducted through conductive plastic, and the insulating rear plug is arranged on one side of the plastic main body and compresses the conductive plastic.

Preferably, a plurality of grooves are formed in the upper side and the lower side of the plastic main body, and the grooves are filled when the outer die is injected on the plastic main body to form the clamping block. The width dimension of the interior of the groove is greater than the width dimension of the groove outlet. Be provided with two fixed blocks in the plastic main part, form the tin silk fixed slot between the fixed block, the tin silk fixed slot is used for placing the tin silk of welding usefulness. Two side ends of the plastic main body are mounting parts, through grooves are arranged in the mounting parts, and nuts are embedded in the through grooves; the circuit board is fixed on the mounting portion through bolts, bolt holes are formed in the circuit board, and the bolts penetrate through the bolt holes to be locked in the through grooves and the nuts.

Due to the adoption of the structure, the utility model discloses following beneficial effect has:

1. the utility model discloses be at the cable and buckle with terminal group link end to form the external mold at the link, circuit board perpendicular to plastic main part installation, make the compact structure of connector, reduced the length size of connector, be favorable to realizing miniaturized structural design.

2. A gap is arranged between the end part of the outer die and the circuit board, so that the circuit board can be conveniently installed.

3. The utility model discloses with the chip setting on the circuit board of connector, can cancel the chip on the server mainboard, saved the mainboard space, and be convenient for reprocess, through this design for the installation of chip is put more in a flexible way. The utility model discloses a chip carries out function control and configuration to the signal, can realize the expansion of multipotency, and the multiple spot is visited to, promotes access efficiency.

4. The utility model discloses a set up insulating back stopper, make and separate between each terminal, prevent the short circuit. And the insulating rear plug is connected with the plastic main body in an installing manner and compresses the conductive plastic, so that the connection between the conductive plastic and the ground terminal is more reliable.

5. The utility model discloses a power supply terminal sets up to the fisheye terminal, realizes the electricity through pegging graft to the circuit board on and connects, connects more simply reliably.

6. The utility model discloses set up the recess in the plastic main part for the external mold is filled when moulding plastics, improves the combination stability of external mold and plastic main part. The nut is formed in the plastic main body of the connector, so that the mounting is more convenient, the connection strength is improved, and the plastic main body can be prevented from being damaged when the bolt is fixed.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.

Fig. 2 is a schematic view of another angle.

Fig. 3 is an exploded schematic view of fig. 2.

Fig. 4 is a schematic front view of the first embodiment (hiding the first signal external cable and the power external cable).

Fig. 5 is an exploded view of the connector body and overmold.

Fig. 6 is a schematic diagram of a circuit board.

Fig. 7 is a schematic view of the structure of the connector body.

Fig. 8 is an exploded schematic view of fig. 7.

Fig. 9 is an enlarged schematic view at B of fig. 7.

Fig. 10 is a front view of the connector body.

Fig. 11 is a bottom view of fig. 10.

Fig. 12 isbase:Sub>A schematic sectional view taken along linebase:Sub>A-base:Sub>A of fig. 11.

Fig. 13 is a partial cutaway perspective view of the connector body.

Fig. 14 is a schematic diagram of circuit board mounting.

Fig. 15 is a schematic view of the first signal cable and the second signal cable being bent in the outgoing direction.

Description of the main component symbols:

1: a connector body;

11: plastic body, 111: positioning column, 112: mounting portion, 113: through groove, 114: fixed block, 115: tin wire fixing groove, 116: groove, 117: first socket, 118: a second socket;

12: signal terminal group, 121: second signal terminal, 122: first signal terminal, 123: a ground terminal;

13: power supply terminal group, 131: a fisheye terminal;

14: conducting plastic;

15: insulating a rear plug;

16: nut, 17: bolt, 18: a gasket;

2: circuit board, 21: contact hole, 22: positioning groove, 23: first end portion, 24: second end portion, 25: connection portion, 26: pad, 27: bolt holes;

3: a chip;

4: second signal cable, 5: first signal cable, 6: first signal external cable, 7: the power supply is externally connected with a cable;

8: outer mold, 81: a clamping block;

91: first circuit board, 92: a second circuit board.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the present invention is further described in detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 to 5, the present invention discloses a cable connector, including: connector body 1, circuit board 2, cable and external mold 8. The cable includes a first signal cable 5 and a second signal cable 4.

Referring to fig. 7 to 8, the connector body 1 includes a plastic main body 11, and a signal terminal set 12, a power terminal set 13, a conductive plastic 14 and an insulating rear plug 15 mounted in the plastic main body 11. The signal terminal group 12 includes a second signal terminal 121, a first signal terminal 122, and a ground terminal 123 arranged side by side. The second signal terminal 121 is used to transmit high-speed signals, and the first signal terminal 122 is used to transmit sideband signals. A high-speed signal refers to a signal having a rising edge or a falling edge of a signal with a time less than 100ps, or a signal transmitted along a transmission path, in which a severe skin effect and ionization loss occur. The high speed signal may be a differential signal and the sideband signal refers to the modulated signal.

The plastic body 11 is provided with a first socket 117 and a second socket 118 penetrating in a first direction (X direction in the figure), the signal terminal group 12 is provided in the first socket 117, and the power terminal group 13 is provided in the second socket 118.

As shown in fig. 5, the first signal cable 5 and the second signal cable 4 are bent in an L-shape at the end connected to the signal terminal group 12. The first end of the bending part is electrically connected with the signal terminal group along a first direction, the second end of the bending part extends out of the plastic main body along a second direction (such as a Y direction in the figure), and the second direction is vertical to the first direction. The second signal cable 4 is soldered to the second signal terminal 121, and the first signal cable 5 is soldered to the first signal terminal 122.

As shown in fig. 6, the circuit board 2 is an integrated board, and the circuit board 2 is mounted on the plastic body along the second direction and fixed on two sides of the plastic body 11. The circuit board 2 includes a first end portion 23, a second end portion 24, and a connecting portion 25. The connecting portion 25 connects the first end portion 23 and the second end portion 24, and a width K2 of the connecting portion 25 is smaller than a width K1 of the first end portion and a width K3 of the second end portion. The first end portion 23 and the second end portion 24 are fixed to two side ends of the plastic body 11, respectively. The first end portion 23 and the second end portion 24 are provided with a pad 26, and the first signal external cable 6 and the power external cable 7 are soldered on the pad 26. The circuit board 2 is connected with a chip 3, and the chip 3 is an ASIC chip in this embodiment.

And an outer mold 8 is injected at the connection part of the first end and the second end of the second signal cable 4 and the first signal cable 5, and the outer mold 8 covers the electric connection area of the signal terminal group 12 and the first signal cable 5 and the second signal cable 4. The insulating material used for the outer mold 8 may be plastic, nylon, liquid Crystal Polymer (LCP), polyphenylene sulfide (PPS), high temperature nylon or polyphenylene oxide (PPO), polypropylene (PP), or the like.

As shown in fig. 4, the connection portion 25 of the circuit board 2 is located inside the bent portions of the second signal cable 4 and the first signal cable 5, and a gap h is provided between the connection portion 25 and the end of the outer mold 8. The thickness of the second signal cable 4 and the first signal cable 5 is set to a (see fig. 3), and the gap is set to h =1a to 10a, so that the circuit board 2 can be easily mounted.

As shown in fig. 11 and 12, the plastic body 11 has mounting portions 112 at both ends thereof, and a through groove 113 is formed in the mounting portions, and a nut 16 is embedded in the through groove. Referring to fig. 3, the circuit board 2 is fixed to the mounting portion 112 by bolts 17, bolt holes 27 are formed in the circuit board 2, and the bolts 17 pass through the bolt holes 27 and are locked in the through slots 113 and the nuts 16.

The power terminal group 13 includes a plurality of fisheye terminals 131. The plastic body 11 is provided with 3 positioning posts 111 at two sides of the fisheye terminal. As shown in fig. 3, the circuit board 2 is provided with a contact hole 21 and a positioning groove 22. The positioning posts 111 are installed in the positioning grooves 22, and the fisheye terminals 131 are inserted into the contact holes 21 to be electrically connected with the circuit board 2. As shown in fig. 10, the end of the positioning pillar 111 protrudes out of the fisheye terminal 131, that is, there is a height difference s between the end of the positioning pillar 111 and the end of the fisheye terminal 131. By setting the height difference s, when the fisheye terminal 131 is mounted, the positioning column 111 is firstly inserted into the positioning groove 22 of the circuit board 2, and the fisheye terminal 131 is prevented from being damaged by collision or inclined insertion.

As shown in fig. 13, a ground terminal 123 is provided between the second signal terminal 121 and the first signal terminal 122 at an interval, and the terminal arrangement is in accordance with the specification arrangement of the PCI Express card. The ground terminal 123 is connected and conducted through the conductive plastic 14, and the insulating rear plug 15 is installed on one side of the plastic body 11 to press the conductive plastic 14.

As shown in fig. 7 and 9, two fixing blocks 114 are disposed on the plastic main body 11 at the side of the signal terminal set 12, a tin wire fixing groove 115 is formed between the fixing blocks 114, and the tin wire fixing groove 115 is used for placing a tin wire for soldering. During welding, the tin wire is clamped in the tin wire fixing groove 115 and placed along the surface of the signal terminal group 12, the connecting end portions of the second signal cable 4 and the first signal cable 5 and the signal terminal group 12 are bent in an L shape, then the second signal cable 4 and the first signal cable 5 are placed on the tin wire, and the second signal cable 4 is connected with the second signal terminal 121 through welding, so that the first signal cable 5 is connected with the first signal terminal 122.

The installation process of this embodiment is detailed as follows:

(1) The second signal cable 4 is soldered to the second signal terminal 121, and the first signal cable 5 is soldered to the first signal terminal 122.

(2) The second signal cable 4 and the first signal cable 5 are bent downward.

(3) As shown in fig. 5, an outer mold 8 is molded in the area where the second signal cable 4 and the first signal cable 5 are soldered to the signal terminal group 12. The upper and lower sides of the plastic body 11 are provided with a plurality of grooves 116, and when the outer mold 8 is injected on the plastic body 11, the colloid fills the grooves 116 to form the fixture blocks 81. As shown in fig. 10, the width dimension c of the inside of the groove 116 is larger than the width dimension d of the outlet of the groove 116, so that the latch 81 cannot be released from the groove 116.

(4) As shown in fig. 14 (the outer mold is hidden in fig. 14), the second signal cable 4 and the first signal cable 5 are folded outward, and then the circuit board 2 is mounted (mounted in the direction of the arrow in fig. 14). By providing the gap h, interference with the cable when the circuit board 2 is mounted can be prevented. When the circuit board 2 is installed, the positioning posts 111 are guided and inserted into the positioning slots 22, and the fisheye terminals 131 are inserted into the contact holes 21 to make electrical contact with the circuit board 2.

(5) Bolts 17 and gaskets 18 on two sides are installed, and the bolts 17 pass through the bolt holes 27 to the through grooves 113 to be locked with the nuts 16.

(6) After the circuit board 2 is mounted, the other end of the first signal cable 5 is soldered to a pad of the circuit board 2. The chip 3 can be pre-mounted on the circuit board 2, and the first signal external cable 6 and the power external cable 7 are soldered on the bonding pad.

(7) As shown in fig. 15, the second signal cable 4 and the first signal cable 5 may be bent in the outgoing direction.

The utility model discloses set up chip 3 on circuit board 2, the one end and the welding of first signal terminal 122 of first signal cable 5, the other end welds to circuit board 2 on, walks line and chip 3 through circuit board 2 and is connected and switches on, and chip 3 walks the external cable 6 of line intercommunication first signal through circuit board 2 again. Through this kind of structure, let chip 3 link together with first signal cable 5 to control sideband signal's function and configuration through chip 3, let product scheme design more nimble and convenient.

The utility model discloses in, the signal connection of power has following two kinds of condition:

(1) The power terminal group 13 is connected to the circuit board 2, and is directly conducted with the power external cable 7 through the wiring of the circuit board 2.

(2) The power terminal group 13 is connected to the circuit board 2 and connected to the chip 3, and the chip 3 is connected to the power external cable 7 through the wiring of the circuit board 2. This way the function and configuration of the power supply signal can be controlled by the chip 3.

The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.

Claims

1. A cable connector, comprising: the connector comprises a connector body, a cable, a circuit board and an outer die;

the connector body comprises a plastic main body and a signal terminal group, a first socket which is communicated along a first direction is arranged in the plastic main body, and the signal terminal group is arranged in the first socket;

the end part of the cable is bent, a bent first end is electrically connected with the signal terminal group along a first direction, a bent second end extends out of the plastic main body along a second direction, and the second direction is perpendicular to the first direction;

the circuit board is arranged on the plastic main body along a second direction and fixed on two sides of the plastic main body, the circuit board is positioned on the inner side of the cable, and the second end of part of the cable is electrically connected with the circuit board;

the outer mold is formed by injecting an insulating material at the joint of the first end and the second end of the cable, and covers the electric connection area of the signal terminal group and the cable.

2. The cable connector of claim 1, wherein: the circuit board is an integrated board and comprises a first end part, a second end part and a connecting part, wherein the connecting part is connected with the first end part and the second end part, and the width of the connecting part is smaller than that of the first end part and the second end part; the first end portion and the second end portion are fixed to two side ends of the plastic main body respectively, the connecting portion is located on the inner side of the cable in a bending mode, and a gap is formed between the connecting portion and the end portion of the outer die.

3. The cable connector of claim 1, wherein: when the thickness of the cable is set to a, the gap is set to 1a to 10a.

4. The cable connector of claim 1, wherein: the signal terminal group comprises a first signal terminal, a second signal terminal and a grounding terminal, the cable comprises a first signal cable and a second signal cable, one end of the first signal cable is connected with the first signal terminal, and the other end of the first signal cable is connected to the circuit board; the second signal cable is connected with the second signal terminal.

5. The cable connector of claim 4, wherein: the plastic main body is also provided with a second jack on one side of the first jack, the power terminal group is arranged in the second jack, the power terminal group comprises a plurality of fisheye terminals, a plurality of positioning columns are arranged on the two sides of the fisheye terminals of the plastic main body, and the end parts of the positioning columns protrude out of the fisheye terminals; the circuit board is provided with a contact hole and a positioning groove, the positioning column is installed in the positioning groove, and the fisheye terminal is inserted into the contact hole to be electrically connected with the circuit board.

6. The cable connector of claim 5, wherein: the circuit board is provided with a chip, a first signal external cable and a power signal external cable;

the power terminal group is connected to the circuit board and is directly conducted with a power external cable, or the power terminal group is connected to the circuit board and is connected and conducted with the chip, and the chip is connected with the power external cable;

the first signal cable is connected to the circuit board and is connected and conducted with the chip, and the chip is connected with the first signal external cable.

7. The cable connector of claim 4, wherein: the connector body also comprises conductive plastic and an insulating rear plug; the grounding terminal is connected and conducted through conductive plastic, and the insulating rear plug is arranged on one side of the plastic main body and compresses the conductive plastic.

8. The cable connector of claim 1, wherein: a plurality of grooves are formed in the upper side and the lower side of the plastic main body, and the grooves are filled with the outer mold when the outer mold is injected on the plastic main body to form a clamping block; the width dimension of the interior of the groove is greater than the width dimension of the groove outlet.

9. The cable connector of claim 1, wherein: be provided with two fixed blocks in the plastic main part, form the tin silk fixed slot between the fixed block, the tin silk fixed slot is used for placing the tin silk of welding usefulness.

10. The cable connector of claim 1, wherein: two side ends of the plastic main body are mounting parts, through grooves are arranged in the mounting parts, and nuts are embedded in the through grooves;

the circuit board is fixed on the mounting portion through bolts, bolt holes are formed in the circuit board, and the bolts penetrate through the bolt holes to be locked in the through grooves and the nuts.