TWI602358B - Cable connector - Google Patents

Description

Cable connector

The present invention relates to a cable connector, and more particularly to a cable connector that is simple in process and has a flat cable to facilitate soldering.

In the 3C industry, the cable connector can serve as a medium for electrical connection between two electronic devices and can stably perform the expected signal transmission operation. Therefore, the cable connector is generally applied to various electronic devices. Conventional cable connectors typically have a connector portion and a cable portion that is coupled to the rear end of the connector portion. The connector portion includes a plurality of conductive terminals for signal transmission and a plastic body for carrying the conductive terminals; the cable portion includes a plurality of wires electrically connected to the conductive terminals.

The connector part can be a USB Type C connector released by the USB Association in 2014. The USB connector can be used for forward and reverse plugging, and the signal transmission rate and shielding effect are good; however, the overall structure of the USB connector Complexity, process and installation are more troublesome.

The cable portion is generally arranged in a circular shape, and the plurality of wires are coaxially disposed in an outer insulating sleeve. The wire in the circular cable part needs to adopt a very thin coaxial wire with high cost, and since the conductive terminals are usually arranged side by side, and then the wire and the conductive terminal are welded and connected, the circular cable needs to be first Multiple wires are exposed, then separated and placed The row is soldered to the conductive terminals, which makes the soldering more troublesome, and the wires are easily contacted with each other when placed and soldered to cause a short circuit.

In view of this, it is indeed necessary to further improve the conventional cable connector to solve the above problems.

The object of the present invention is to provide a novel cable connector which is not only simple in process, good in signal transmission, but also uses a flat cable to facilitate soldering.

To achieve the above object, the present invention provides a cable connector. The cable connector includes: a first terminal assembly having a plurality of first terminals and a first body fixed around the first terminal, the first terminal having a first fixing portion fixed in the first body, from the first a first contact portion extending forwardly from one end of the fixing portion and a first solder portion extending from the other end of the first fixing portion to the first body; the second terminal assembly having a plurality of second terminals and a portion fixed around the second terminal The second body has a second fixing portion fixed in the second body, a second contact portion extending forward from one end of the second fixing portion, and a second body extending from the other end of the second fixing portion a soldering portion; a central grounding unit having a central grounding plate fixed between the first body and the second body; and a grounding locking arm extending to a side of the first contact portion and the second contact portion; a terminal assembly and a second terminal assembly peripheral; the grounding component includes an upper grounding piece and a lower grounding piece, wherein the upper grounding piece and the lower grounding piece respectively have an insulating seat fixed thereto, and the grounding component is along the cable connector Direction are attached The first terminal assembly and the second terminal assembly are interposed between the outer casing assembly and the first and second terminal assemblies, and the upper grounding piece and the lower grounding piece are respectively disposed to extend in opposite directions. The elastic piece and the outer abutting elastic piece, the outer abutting elastic piece abuts against the outer casing assembly, and an opening is formed between the inner abutting elastic piece and the outer abutting elastic piece, and the insulating seat is disposed in the opening and formed with a plurality of intervals The strip-shaped protrusions face the first terminal and the second terminal; the built-in circuit board has a first gold finger located at one end to be correspondingly connected with the first soldering portion and the second soldering portion, and is located at the other end and electrically connected to the first gold finger The second gold finger of the sexual connection; the flat cable has a plurality of wires correspondingly connected to the second gold finger and a layer fixed outside the plurality of wires, the plurality of wires are arranged side by side and the axes thereof are on the same plane.

As a further improvement of the present invention, the front end of the inner abutting elastic piece is reversely bent to form a U-shaped head, and the U-shaped head is located at the first contact portion and the second contact portion along the length direction of the cable connector. Between the front faces of the cable connectors.

As a further improvement of the present invention, the two sides of the upper and lower grounding strips are respectively formed with fixing legs extending along the height direction of the cable connector, and the outer abutting elastic piece is located in the inner abutting elastic piece along the length direction of the cable connector. A fixing groove for receiving the fixing leg is respectively disposed on the first body and the second body.

As a further improvement of the present invention, the rear end of the central grounding piece is provided with an extending arm extending to both sides, and the rear end of the grounding locking arm is elastically extended in opposite directions, and the end of the extending arm and the rear end of the grounding locking arm are respectively The aforementioned outer casing components are in contact.

As a further improvement of the present invention, the foregoing wire includes a pair of differential signals formed The first wire and the second wire, the first wire and the second wire respectively have a first conductor at a central position, a first cladding layer covering the periphery of the first conductor, and a first cladding layer The second cladding layer on the periphery, the dielectric coefficient of the first cladding layer is lower than the dielectric constant of the second cladding layer.

As a further improvement of the present invention, the wire further includes a third wire, the third wire has a second conductor at a central position and a third cladding layer covering the periphery of the second conductor, the diameter of the second conductor Different from the diameter of the first conductor of the first wire and the second wire.

To achieve the above object, the present invention also provides a cable connector. The cable connector includes: a first terminal assembly having a plurality of first terminals and a first body fixed around the first terminals, the first body includes a first tongue portion and a first mounting portion; and the second terminal assembly a plurality of second terminals and a second body fixed around the second terminals, the second body includes a second tongue and a second mounting portion; a central grounding unit disposed between the first body and the second body; grounded The assembly is mounted on the first terminal assembly and the second terminal assembly, and includes a grounding piece and a lower grounding piece above and below the central grounding unit; the outer casing assembly includes a front housing and is stacked on the front housing After the housing, the front housing completely covers the first tongue portion and the second tongue portion of the first terminal assembly and the second terminal assembly, the central grounding unit, the grounding component, and the like, and the rear housing is covered by the first housing a first mounting portion and a second mounting portion of the terminal assembly and the second terminal assembly, wherein the housing assembly is electrically connected to the grounding assembly, and the front housing has an elliptical cross section and is integrally formed After the housings are superposed on the rear end of the front housing, the rear housing includes a front case portion superposed on the external cover and the rear end of the first security a cover portion of the mounting portion and the second mounting portion, the front end of the outer portion is provided with a tear-formed flange, the two sides of the cover portion are provided with solder legs extending along a height direction of the cable connector; and the built-in circuit board has a first gold finger at one end corresponding to the first terminal and the second terminal, and a second gold finger at the other end and electrically connected to the first gold finger; the flat cable has a plurality of the second gold fingers Correspondingly connected wires and layers disposed outside the plurality of wires, the plurality of wires are arranged side by side and their axes are on the same plane.

As a further improvement of the present invention, the outer portion has an elliptical annular design and is welded to the rear end of the front casing, and the flange is disposed on the upper and lower sides of the outer portion.

To achieve the above object, the present invention also provides a cable connector. The cable connector includes: a first terminal assembly having a plurality of first terminals and a first body fixed around the first terminals, the first body includes a first tongue portion and a first mounting portion; and the second terminal assembly a plurality of second terminals and a second body fixed around the second terminals, the second body includes a second tongue and a second mounting portion; a central grounding unit disposed between the first body and the second body; grounded The assembly is mounted on the first terminal assembly and the second terminal assembly, and includes a grounding piece and a lower grounding piece above and below the central grounding unit; the outer casing assembly includes a front housing and is stacked on the front housing After the housing, the front housing completely covers the first tongue portion and the second tongue portion of the first terminal assembly and the second terminal assembly, the central grounding unit, the grounding component, and the like, and the rear housing is covered by the first housing Terminal assembly and second end a first mounting portion and a second mounting portion of the subassembly, wherein the housing component is electrically connected to the grounding component; the built-in circuit board has a first gold finger located at one end to be correspondingly connected to the first terminal and the second terminal, and a second gold finger electrically connected to the first gold finger at the other end; the flat cable has a plurality of wires correspondingly connected to the second gold finger and a layer fixed outside the plurality of wires, and the plurality of wires are arranged side by side and The axis is located on the same plane; wherein the wire comprises a first wire and a second wire forming a pair of differential signals, wherein the first wire and the second wire respectively have a first conductor at a central position, and are coated on the first a first cladding layer on the periphery of the conductor and a second cladding layer on the periphery of the first cladding layer, wherein the first cladding layer has a lower dielectric constant than the second cladding layer.

As a further improvement of the present invention, the wire further includes a third wire, the third wire has a second conductor at a central position and a third cladding layer covering the periphery of the second conductor, the diameter of the second conductor Different from the diameter of the first conductor of the first wire and the second wire.

To achieve the above object, the present invention also provides a cable connector. The cable connector includes: a first terminal assembly having a plurality of first terminals and a first body fixed around the first terminals, the first body includes a first tongue portion and a first mounting portion; and the second terminal assembly a second body having a plurality of second terminals and a second body fixed around the second terminal, the second body includes a second tongue portion and a second mounting portion; a central grounding unit disposed between the first body and the second body; a grounding component mounted on the first terminal assembly and the second terminal assembly, and including a grounding piece and a lower grounding piece above and below the central grounding unit; the housing assembly including the front housing and the front housing After the upper rear case, the front case completely covers the first tongue portion and the second tongue portion of the first terminal assembly and the second terminal assembly, the central grounding unit, the grounding component, and the like, and the rear housing is covered by the first housing a first mounting portion and a second mounting portion of the first terminal assembly and the second terminal assembly, wherein the housing assembly is electrically connected to the grounding assembly; the built-in circuit board has an end portion corresponding to the first terminal and the second terminal a first gold finger and a second gold finger at the other end and electrically connected to the first gold finger; the flat cable has a plurality of wires corresponding to the second gold finger and a layer fixed outside the plurality of wires. The plurality of wires are arranged side by side and the axes thereof are on the same plane; wherein the central grounding unit comprises a central grounding piece and extension fixed between the first body and the second body a grounding locking arm to the side of the first terminal and the second terminal, the rear end of the central grounding piece is provided with an extending arm extending to both sides, the end of the extending arm is in contact with the rear casing, and the rear end of the grounding locking arm Elastically overhanging in the opposite direction and elastically abutting the front casing to electrically connect the outer casing assembly to the central grounding unit.

Compared with the prior art, the cable connector of the present invention sets the cable as a flat cable, that is, the plurality of wires are arranged side by side in the outer layer corresponding to the second gold finger and the axes thereof are in the same plane. Therefore, when the flat cable is connected to the second gold finger, the corresponding welding can be directly performed, and the welding is convenient and the contact short circuit does not occur. In addition, this kind of flat cable system It is easy to manufacture, and it can have the same effect without using a very thin coaxial cable, and the cost is low.

100‧‧‧ cable connector

1‧‧‧Terminal components

10‧‧‧ front end

20‧‧‧ docking space

2‧‧‧ Grounding components

21‧‧‧Up grounding piece

22‧‧‧Under the grounding piece

23‧‧‧Insulation seat

231‧‧‧ strip bulges

232‧‧‧long slot

Reaching shrapnel within 24‧‧

241‧‧‧U-shaped head

25‧‧‧ outer abutment shrapnel

26‧‧‧Hatch

27‧‧‧Fixed feet

3‧‧‧Shell assembly

31‧‧‧ front housing

311‧‧‧Shrap

32‧‧‧ rear housing

321‧‧‧External Department

3211‧‧‧Flanging

322‧‧‧ Covering Department

3221‧‧‧ solder feet

4‧‧‧First terminal assembly

41‧‧‧First terminal

410‧‧‧First Fixed Department

411‧‧‧First contact

412‧‧‧First Welding Department

42‧‧‧First Ontology

421‧‧‧ first tongue

4211‧‧‧First place slot

4212‧‧‧Upper joint

4213‧‧‧Under the inner joint

4214‧‧‧ receiving holes

4215‧‧‧Positioning column

4216‧‧‧ openings

4217‧‧‧through hole

4218‧‧‧Placement holes

422‧‧‧First Installation Department

43‧‧‧ Grounding terminal

44‧‧‧Differential signal terminal

45‧‧‧Power terminal

46‧‧‧Low frequency signal terminal

5‧‧‧Second terminal assembly

51‧‧‧second terminal

510‧‧‧Second fixed department

511‧‧‧Second contact

512‧‧‧Second welding department

52‧‧‧Second ontology

521‧‧‧second tongue

5211‧‧‧Second handicap slot

5212‧‧‧Under external junction

5213‧‧‧Upper joint

5214‧‧‧ buckle block

5215‧‧‧ buckle slot

5216‧‧‧fixed slot

522‧‧‧Second Installation Department

5221‧‧‧Receiving Department

5222‧‧‧Bumps

5223‧‧‧ spacer block

5224‧‧‧Limited slot

6‧‧‧Central grounding unit

61‧‧‧Central grounding lug

611‧‧‧Positioning holes

612‧‧‧Large holes

613‧‧‧ square holes

614‧‧‧Extension arm

62‧‧‧Ground lock arm

7‧‧‧Insulation block

71‧‧‧First Fixed Department

711‧‧‧Depression

72‧‧‧Second fixed department

73‧‧‧Connecting Department

700‧‧‧ sheath

800‧‧‧flat cable

81‧‧‧ wire

82‧‧‧Outer layer

83‧‧‧ Third wire

831‧‧‧second conductor

832‧‧‧ Third cladding

84‧‧‧Wire set

841‧‧‧First wire

842‧‧‧second wire

843‧‧‧First conductor

844‧‧‧First cladding

845‧‧‧Second coating

900‧‧‧ Built-in board

91‧‧‧ front end

911‧‧‧first golden finger

92‧‧‧ Backend

921‧‧‧second golden finger

The first figure is a perspective view of a preferred embodiment of the cable connector of the present invention.

The second figure is a partial structural perspective view of the cable connector shown in the first figure after the sheath is removed.

The third figure is another angle view of the cable connector shown in the second figure.

The fourth figure is a perspective view showing the structure of the connector portion after the cable connector is removed from the sheath, the flat cable, and the built-in circuit board shown in the first figure.

The fifth figure is a partially exploded view of the connector shown in the fourth figure.

The sixth figure is a partially exploded view of the other angle of the connector shown in the fifth figure.

The seventh figure is an exploded perspective view of the connector shown in the fourth figure.

The eighth figure is an exploded perspective view of the connector at another angle shown in the seventh figure.

The ninth drawing is a perspective view of the seventh terminal assembly after assembly of the seventh figure.

The tenth figure is a perspective view of the second terminal assembly after assembly in the seventh figure.

The eleventh figure is an exploded view of the outer casing assembly of the seventh figure.

Figure 12 is an exploded view of another embodiment of the outer casing assembly shown in Figure 11.

Figure 13 is a schematic cross-sectional view of the flat cable of the cable connector shown in the first figure.

Referring to the first to thirteenth drawings, in a preferred embodiment of the cable connector 100 of the present invention, the cable connector 100 includes a connector portion and a cable portion. In this embodiment, the connector portion is a USB Type C connector, and the cable portion is a flat cable. The cable connector 100 includes a terminal assembly 1, a housing assembly 3 disposed around a periphery of the terminal assembly 1, and a housing a grounding component 2 between the component 3 and the terminal component 1, a built-in circuit board 900 disposed at the rear end of the terminal component 1, a flat cable 800 connected to one end of the built-in circuit board 900, a rear side of the terminal component 1 and a built-in circuit The plate 900 and the sheath 700 on the front side of the flat cable 800 are provided.

Referring to FIGS. 4 to 10 , the terminal assembly 1 includes a first terminal assembly 4 and a second terminal assembly 5 that are assembled to each other in the up and down direction, and is located between the first terminal assembly 4 and the second terminal assembly 5 . The central grounding unit 6 and the insulating block 7 that fixedly connects the first terminal assembly 4, the second terminal assembly 5, and the central ground unit 6. Of course, the foregoing insulating block 7 may not be provided, and only by the other fastening structures that are mutually fastened between the first terminal assembly 4 and the second terminal assembly 5, such as a hook and a card slot (not shown), The first terminal assembly 4, the second terminal assembly 5, and the center ground unit 6 are fixed together.

The first terminal assembly 4 has a plurality of first terminals 41 and a first body 42 fixed around the first terminals 41. The first terminal 41 has a first fixing portion 410 fixed in the first body 42 , a first contact portion 411 extending forward from one end of the first fixing portion 410 , and a first body extending from the other end of the first fixing portion 410 . The first weld portion 412 of 42. In the embodiment, the first terminal 41 is embedded and fixed in the first body 42 in a row. The first soldering portion 412 is bent downwardly and extended rearward through the rear end of the first fixing portion 410 and then rearward in the horizontal direction. It is extended to facilitate soldering to the built-in circuit board 900 by surface soldering. The aforementioned first welded portions 412 are disposed in a row in the lateral direction.

The second terminal assembly 5 has a plurality of second terminals 51 and a second body 52 fixed around the second terminals 51. The second terminal 51 has a second fixing portion 510 fixed in the second body 52, a second contact portion 511 extending forward from one end of the second fixing portion 510, and a second body extending from the other end of the second fixing portion 510. The second welded portion 512 of 52. In this embodiment, the foregoing The second terminal 51 is also embedded in the second body 52 in a row, and the first terminal 41 and the second terminal 51 are disposed in two rows in the thickness direction of the cable connector 100. The second soldering portion 512 extends downward from the rear side of the second body 52 in a direction perpendicular to the second fixing portion 510 and is located on the front side of the first soldering portion 412. The second welded portion 512 is arranged in two rows in the front-rear direction (ie, the longitudinal direction of the cable connector 100), and the second and second rows of the second welded portions 512 are alternately arranged.

The arrangement of the first terminal 41 and the second terminal 51 conforms to the terminal arrangement of the standard USB Type C plug connector, and each row has two ground terminals 43 disposed on two sides, and two adjacent ground terminals 43 are disposed. Two pairs of differential signal terminals 44, two power terminals 45 disposed inside the two adjacent pairs of differential signal terminals 44, and a low frequency signal terminal 46 located between the two power terminals 45. The differential signal terminals 44 of the upper and lower rows of terminals are of the same type and arranged in reverse so that the mating connector can be electrically connected to the cable connector 100 of the present invention when the connector is inserted in the forward and reverse directions, and can perform signal transmission.

The first body 42 includes a first tongue portion 421 and a first mounting portion 422 that is coupled to the first tongue portion 421. The first tongue portion 421 is smaller than the first mounting portion 422 in the up and down direction and the left and right direction. A first retaining groove 4211 is formed in a joint between the first tongue portion 421 and the first mounting portion 422 so as to be vertically penetrated for positioning a first terminal 41 by a mold (not shown). The first tongue portion 421 defines an upper outer surface 4212 facing the outer casing assembly 3 and the lower inner surface 4213 toward the central grounding unit 6, and a recess on one side of the first retaining groove 4211 on the lower inner surface 4213. A positioning post 4215 is protruded from the receiving hole 4214 and the other side.

The second body 52 includes a second tongue 521 and a second mounting portion 522 that is coupled to the second tongue 521. The second tongue portion 521 is smaller than the second mounting portion 522 in the up and down direction and the left and right direction. The first tongue portion 421 and the front side of the second tongue portion 521 are formed to receive the first contact The docking space 20 of the portion 411 and the second contact portion 511. The first tongue portion 421 and the two sides of the second tongue portion 521 are respectively provided with a fastening block 5214 and a fastening groove 5215 for fastening the first tongue portion 421 and the second tongue portion 521 to each other. The second tongue portion 521 defines a lower outer surface 5212 facing the outer casing assembly 3 and the upper inner surface 5213 toward the central grounding unit 6, and the inner surface of the second tongue portion 521 is also formed with a corresponding recess. The second retaining groove 5211 has a positioning post 4215 corresponding to one side of the second retaining groove 5211, and a receiving hole 4214 formed by the corresponding recess on the other side, so that the positioning post 4215 and the receiving hole 4214 are formed by the positioning hole 4214. The first terminal assembly 4, the second terminal assembly 5, and the central ground unit 6 can be fixedly coupled together.

The shape of the positioning post 4215 is different to prevent the central grounding unit 6 from being incorrectly installed. In the embodiment, one positioning post 4215 is circular and the other positioning post 4215 is rectangular. In addition, at the position of the second soldering portion 512 of the second terminal 51, the second mounting portion 522 is further recessed away from the lower surface of the first body 42 to form a receiving portion 5221 for mounting the built-in circuit board 900. A pair of laterally spaced projections 5222 are formed on the rear side, and the protrusions 5222 are soldered to the built-in circuit board 900.

The central grounding unit 6 has a central grounding piece 61 fixed between the first body 42 and the second body 52 and a grounding locking arm 62 extending to the side of the first contact portion 411 and the second contact portion 511. The central grounding piece 61 is provided with a pair of positioning holes 611, a long hole 612 located between the positioning holes 611, and a pair of square holes 613 on the rear side of the pair of positioning holes 611. The first retaining groove 4211 and the second retaining groove 5211 are connected up and down at the elongated hole 612. In the embodiment, the rear end of the central grounding piece 61 is provided with an extending arm 614 extending to both sides. The rear end of the ground locking arm 62 is elastically extended in the opposite direction, and the end of the extending arm 614 and the ground locking arm 62 are extended. The rear ends are respectively in contact with the aforementioned outer casing assembly 3 to realize the outer casing assembly 3 is electrically connected to the central grounding unit 6.

The second mounting portion 522 defines a limiting slot 5224 for receiving the extension arm 614. The connection between the second tongue portion 521 and the second mounting portion 522 is convexly disposed at the rear end of the ground locking arm 62. A spacer block 5223 spaced from the central grounding strip 61. An opening 4216 for placing the ground locking arm 62 is disposed on both sides of the first tongue portion 421 and the second tongue portion 521, and after the first tongue portion 421 and the second tongue portion 521 are assembled, the foregoing The ground lock arm 62 is exposed to the aforementioned opening 4216.

The insulating block 7 is injection molded on the first body 42 , the second body 52 and the central grounding unit 6 , and is embedded in the first retaining groove 4211 , the second retaining groove 5211 , the elongated hole 612 , and the square hole 613 . Thereby, the first body 42, the second body 52 and the central grounding unit 6 are firmly fixed together. The insulating block 7 includes a first fixing portion 71 that is injection molded in the first body 42 and exposed on the outer surface of the first body 42 , and is secondarily fixed in the second body 52 and exposed on the outer surface of the second body 52 . The portion 72 and the connecting portion 73 that is molded on the center grounding piece 61. The first fixing portion 71, the second fixing portion 72, and the connecting portion 73 are connected to each other such that the insulating block 7 has an I-shape.

Referring to FIG. 11 , the outer casing assembly 3 covers the periphery of the first terminal assembly 4 and the second terminal assembly 5 and includes a front casing 31 and a casing 32 stacked on the front casing 31. The front housing 31 completely covers the front ends of the first terminal assembly 4 and the second terminal assembly 5, and the rear housing 32 covers the rear ends of the first terminal assembly 4 and the second terminal assembly 5. Specifically, the front case 31 completely covers the first tongue portion 421 and the second tongue portion 521 of the first terminal assembly 4 and the second terminal assembly 5, the central grounding unit 6, the grounding component 2, and the like; The housing 32 covers the first mounting portion 422 and the second mounting portion of the first terminal assembly 4 and the second terminal assembly 5 522.

The rear end of the grounding locking arm 62 elastically abuts against the inner wall surface of the front casing 31, and the end of the extension arm 614 is in contact with the inner wall surface of the rear casing 32 to realize the electrical property of the outer casing assembly 3 and the central grounding unit 6. For the connection, please refer to the fifth and sixth figures. The front case 31 has an elliptical cross section and is integrally formed, and the rear case 32 is superposed on the rear end of the front case 31. The front and rear sides of the rear end of the front housing 31 are respectively provided with a forwardly extending elastic piece 311. The upper surface of the first fixing portion 71 of the insulating block 7 is recessed with a recessed portion 711, and the second tongue portion 521 is lower than the wall surface. The recessed portion 711 is also recessed correspondingly to prevent the front housing 31 from moving forward relative to the first body 42 and the second body 52 by the interaction of the elastic piece 311 and the recessed portion 711.

The rear housing 32 includes a cover portion 321 which is disposed at a rear end of the front housing 31 and a cover portion 322 covering the top of the first mounting portion 422 and the second mounting portion 522. The external portion 321 and the front housing After 31, the end welding is fixed. The outer portion 321 is provided with a tear-formed flange 3211 to increase the injection strength during injection molding with the sheath 700, thereby increasing the product breaking force. Solder pins 3221 extending in the height direction of the cable connector 100 are provided on both sides of the cover portion 322 to be soldered to the built-in circuit board 900. In this embodiment, the outer portion 321 has an elliptical annular design and is wrapped in the front end of the front casing 31 in an all-inclusive manner. The flange 3211 is disposed on the upper and lower sides of the front end of the outer portion 321 . Please refer to Figure 11.

Of course, in other embodiments, the outer portion 321 may be fixed to the rear end of the front casing 31 in a semi-package manner. At this time, the flange 3211 is disposed on the front side of the front end of the outer portion 321 . Figure 12 shows.

Referring to the fourth to tenth drawings, the grounding assembly 2 is respectively mounted to the first terminal assembly 4 and the second terminal assembly 5 in the height direction of the cable connector 100, and is disposed. Between the front case 31 and the first and second terminal assemblies 4, 5, the grounding component 2 is electrically connected to the front case 31. The grounding component 2 includes a grounding piece 21 and a lower grounding piece 22 above and below the central grounding unit 6, and an insulating seat 23 is fixed in the upper grounding piece 21 and the lower grounding piece 22, respectively. The upper grounding piece 21 and the upper outer surface 4212 are in the same plane, and the lower grounding piece 22 and the lower outer surface 5212 are in the same plane.

The upper grounding piece 21 and the lower grounding piece 22 are respectively provided with an inner abutting elastic piece 24 and an outer abutting elastic piece 25 extending in opposite directions, and the outer abutting elastic piece 25 protrudes outward and abuts against the front casing 31 to realize Electrical connection. The front end of the inner abutting elastic piece 24 is reversely bent to form a U-shaped head portion 241, and the front end of the first tongue portion 421 and the second tongue portion 521 are opened to allow the U-shaped head portion 241 to protrude into the docking space 20 The through hole 4217 is located behind the through hole 4217 for arranging the seating hole 4218 of the insulating seat 23. The U-shaped head portion 241 is located between the first contact portion 411 and the second contact portion 511 and the front end surface 10 of the cable connector 100 as viewed in the longitudinal direction of the cable connector 100.

A receiving port 26 is formed between the inner abutting elastic piece 24 and the outer abutting elastic piece 25. The receiving hole 26 is disposed corresponding to the mounting hole 4218, so that the insulating seat 23 is disposed in the mounting hole 4218 by the receiving port 26 . . The accommodating opening 26 is formed in a convex shape along the longitudinal direction of the cable connector 100, and is located between the inner abutting elastic piece 24 and the outer abutting elastic piece 25, and the outer abutting elastic piece 25 is disposed at a narrow end of the receiving opening 26. On both sides.

A plurality of spaced-apart strip-shaped protrusions 231 are formed on the insulating base 23 toward the first terminal 41 and the second terminal 51, and a long slot 232 is formed between the two of the plurality of strip-shaped protrusions 231. The direction extends to receive and limit the first contact portion 411 and the second contact portion 511, and the through hole 4217 is located on the front side of the long groove 232. In this embodiment, the insulating seat 23 functions to: when the first and second terminals 41, 51 are rotated during the matching with the mating connector, The edge 23 can function to isolate the first and second terminals 41, 51 from the front case 31, thereby preventing the occurrence of a short circuit.

The two sides of the upper and lower grounding strips 21 and 22 are respectively formed with fixing legs 27 extending in the height direction of the cable connector 100. The outer abutting elastic pieces 25 are located in the inner abutting elastic piece along the length direction of the cable connector 100. Between 24 and the fixed foot 27. A fixing groove 5216 for receiving the fixing leg 27 is correspondingly formed on the first tongue portion 421 and the second tongue portion 521 . The U-shaped head portion 241 of the inner abutting elastic piece 24 protrudes into the through hole 4217 by the fixing leg 27 fixed in the fixing groove 5216, and the upper and lower grounding pieces 21 and 22 can be restrained from being compared with the first and second body. 42, 52 moves.

Referring to the second and third figures, the aforementioned built-in circuit board 900 is arranged in a convex shape and includes a front end 91 welded to the first terminal 41 and the second terminal 51 and a rear end welded to the flat cable 800. 92. The rear end 92 of the built-in circuit board 900 is narrower than the front end 91 in the lateral direction, thereby being easily soldered to the flat cable 800.

A plurality of first gold fingers 911 are disposed on the front end 91 of the built-in circuit board 900, and a plurality of second gold fingers 921 are disposed on the upper side of the rear end 92 of the built-in circuit board 900. A part of the plurality of first gold fingers 911 is surface-welded to the first soldering portion 412 of the first terminal 41, and the other portion is used for interpenetrating soldering with the second soldering portion 512 of the second terminal 51. The plurality of second gold fingers 921 are electrically connected to the first gold finger 911. Specifically, the first gold finger 911 disposed at the front end 91 is electrically connected to the inside of the built-in circuit board 900 (not shown) and the second Gold finger 921 is electrically connected.

Since the signal transmission type of the plurality of first gold fingers 911 corresponding to the first terminal 41 and the plurality of first gold fingers 911 corresponding to the second terminal 51 are substantially the same, on the one hand, the first gold of the same type of signal transmission can be transmitted. The finger 911 is connected to the same second gold hand by a conductive line In the finger 921, for example, the plurality of first gold fingers 911 for transmitting the ground signal may share the same second gold finger 921 or share two second gold fingers 921, etc., thereby reducing the setting of the second gold finger 921, which is convenient. The setting and soldering of the flat cable 800; on the other hand, the connection between the first gold finger 911 and the second gold finger 921 can be adaptively set according to the specific application requirements of the cable connector 100 in the embodiment, for example, The first gold finger 911 and the second gold finger 921 for connecting the differential signal terminal 44 can be connected one by one through the conductive lines, thereby realizing multi-channel high-frequency signal transmission, and the remaining second gold fingers 921 are applied according to the application. The demand and the first gold finger 911 are selectively connected by a conductive line and the like.

Referring to FIG. 13 and in conjunction with the second figure, the flat cable 800 includes a plurality of wires 81 correspondingly connected to the second gold fingers 921 and a layer 82 fixed to the outside of the plurality of wires 81. The plurality of wires 81 are arranged side by side in the outer layer 82 and the axes thereof are on the same plane. Therefore, when the flat cable 800 is connected to the second gold finger 921, the corresponding welding can be directly performed, and the welding is convenient. In addition, the flat cable 800 is easy to manufacture, and the same effect can be obtained without using a very thin coaxial cable, and the cost is low.

In the embodiment, the wire 81 is provided with a plurality of wire sets 84 and a plurality of third wires 83. Each of the wire sets 84 includes a first wire 841 and a second wire 842 that are adjacently disposed and form a differential signal pair. The first wire 841 and the second wire 842 respectively have a first conductor 843 at a central position, a first cladding layer 844 covering the periphery of the first conductor 843, and a first cladding layer 844 covering the periphery of the first cladding layer 844. Two cladding layers 845.

The dielectric constant of the first cladding layer 844 is lower than the dielectric constant of the second cladding layer 845. Wherein, the first cladding layer 844 can be set to have a dielectric constant close to air, so that the impedance of the first cladding layer 844 is small, so that the first conductor 843 can provide a better signal transmission environment and reduce The propagation delay of the signal reduces the crosstalk between the signals, ensuring high-speed and efficient transmission of the signal and reducing signal attenuation. In addition, the foregoing second cladding layer 845 is disposed to have a relatively high dielectric constant, specifically, an absorption layer made of an absorbing material capable of absorbing electromagnetic waves, whereby the absorbing layer 845 can be used to absorb externally radiated electromagnetic waves. Effectively suppress external electromagnetic interference, effectively isolate the first conductor 843 from the outside to ensure high-frequency, ultra-high frequency signal transmission; in addition, the aforementioned absorbing layer 845 also has light weight, temperature resistance, moisture resistance, corrosion resistance and the like. In turn, the first conductor 843 located on the inner side can be effectively protected to extend the service life of the flat cable 800 of the present invention.

The third wire 83 is disposed on both sides of the wire group 84 and has a second conductor 831 at a central position and a third cladding layer 832 covering the periphery of the second conductor 831. The diameter of the second conductor 831 is different from the diameter of the first conductor 843 of the first wire 841 and the second wire 842, that is, the diameter of the second conductor 831 can be adjusted according to the impedance matching of the differential signal, and may be greater than or It is smaller than the diameter of the first conductor 843 of the first wire 841 and the second wire 842.

Further, the outer cover layer 82 relatively positions and protects all the wires 81, and may be disposed to cover the outer cover of all the wires 81 at the same time, or cover all the upper and lower sides of the wires 81 for positioning at the same time. Cover film. The materials of the first cladding layer 844, the second cladding layer 845, and the outer layer 82 are different.

When manufacturing and installing the connector portion: first, the first terminal assembly 4 and the second terminal assembly 5 are formed; secondly, the central ground unit 6 is matched by the positioning hole 611 and the positioning post 4215 on the second body 52. Positioning on the second terminal assembly 5; then, the first terminal assembly 4 and the second terminal assembly 5 are cooperatively positioned together by the fastening block 5214 and the fastening groove 5215, and then the first terminal is injection molded thereon. The component 4, the second terminal assembly 5 and the central grounding unit 6 are fixed together with the insulating block 7 to form the aforementioned terminal assembly 1; further, the aforementioned grounding component 2 is connected along the cable The height direction of the device 100 is respectively mounted to the first terminal assembly 4 and the second terminal assembly 5, so that the U-shaped head portion 241 is received in the through hole 4217, the fixing leg 27 is fixed in the fixing slot 5216, and the first terminal 41 is first. The contact portion 411 and the second contact portion 511 of the second terminal 51 are respectively accommodated in the long slot 232 of the insulating seat 23; further, the front housing 31 is sleeved from the front to the rear to the periphery of the terminal assembly 1, so that the front housing 31 will The first terminal assembly 4 and the first tongue portion 421 and the second tongue portion 521 of the second terminal assembly 5, the central grounding unit 6, the grounding assembly 2, and the like are completely covered, and the rear housing 32 is sleeved from the front to the rear to the front housing. The rear end periphery of the 31 is such that the covering portion 322 covers the first mounting portion 422 and the second mounting portion 522 of the first terminal assembly 4 and the second terminal assembly 5; finally, the rear end of the front housing 31 and the rear housing 32 The outer portion 321 is spot-welded and fixed.

When the connector portion is soldered and fixed to the built-in circuit board 900, the second soldering portion 512 of the second terminal 52 is first passed through the soldering hole on the built-in circuit board 900, and then the first soldering portion 412 of the first terminal 41 is correspondingly The first gold finger 911 is welded and fixed by surface welding, and the second welding portion 512 of the second terminal 52 and the corresponding first gold finger 911 are welded and fixed in the welding hole.

When the flat cable 800 is welded, the outer end portion 82 of the flat cable 800 is removed to expose the front side portion of the wire 81, and then the first conductor 843 and the second conductor 831 inside the wire 81 are exposed and exposed. The first conductor 843 and the second conductor 831 are surface-welded to the second gold finger 921, and finally the rear side of the connector portion is connected to the built-in circuit board 900 by the sheath 700, and the outside of the built-in circuit board 900 And the built-in circuit board 900 and the front side of the flat cable 800 are covered and protected.

In summary, the cable connector 100 of the present invention, on the one hand, is mounted to the first terminal assembly 4 and the second terminal group by the grounding assembly 2 in the height direction of the cable connector 100, respectively. The component 5 is sandwiched between the outer casing assembly 3 and the first and second terminal assemblies 4, 5, thereby avoiding the risk of short circuit of the first and second terminals 41, 51, and also making the grounding component 2 The assembly method is simple. In addition, by designing the outer casing assembly 3 as a front and rear two-stage type, and the front casing 31 and the rear casing 32 are spot-welded, the molding step can be simplified and the strength can be increased while having a better shielding effect. Moreover, the first and second terminals 41, 51 and the first and second bodies 42, 52, the upper and lower grounding pieces 21, 22 and the insulating block 23 are respectively assembled into components, and then assembled to each other. The method makes the structural design of each part relatively simple, and the corresponding mold design is relatively simple and easy to manufacture.

On the other hand, by providing the cable as the flat cable 800, that is, the plurality of wires 81 are arranged side by side in the outer layer 82 corresponding to the second gold finger 921 and the axes thereof are on the same plane, thereby making the cable When the flat cable 800 is connected to the second gold finger 921, the corresponding welding can be directly performed, and the welding is convenient and the contact short circuit does not occur. In addition, the flat cable 800 is easy to manufacture, and the same effect can be obtained without using a very thin coaxial cable, and the cost is low.

It is to be understood that the equivalents of the invention are intended to be included within the scope of the invention as claimed.

31‧‧‧ front housing

32‧‧‧ rear housing

3211‧‧‧Flanging

412‧‧‧First Welding Department

800‧‧‧flat cable

81‧‧‧ wire

82‧‧‧Outer layer

900‧‧‧ Built-in board

91‧‧‧ front end

911‧‧‧first golden finger

92‧‧‧ Backend

921‧‧‧second golden finger

Claims (11)

A cable connector includes: a first terminal assembly having a plurality of first terminals and a first body fixed around the first terminal, the first terminal having a first fixing portion fixed in the first body, a first contact portion extending forwardly from one end of the fixing portion and a first solder portion extending from the other end of the first fixing portion to the first body; the second terminal assembly having a plurality of second terminals and being fixed around the second terminal a second body, the second terminal has a second fixing portion fixed in the second body, a second contact portion extending forward from one end of the second fixing portion, and a second body extending from the other end of the second fixing portion a second grounding unit having a central grounding plate fixed between the first body and the second body and a grounding locking arm extending to the side of the first contact portion and the second contact portion; the outer casing assembly is covered The first terminal assembly and the second terminal assembly are peripheral; the grounding component includes an upper grounding piece and a lower grounding piece, and the upper grounding piece and the lower grounding piece are respectively fixed with an insulating seat, and the grounding component is connected along the cable The height direction is respectively installed to the first terminal assembly and the second terminal assembly, and is sandwiched between the outer casing assembly and the first and second terminal assemblies, and the upper grounding piece and the lower grounding piece are respectively provided to extend in opposite directions. Abutting the elastic piece and the outer abutting elastic piece, the outer abutting elastic piece is abutting against the outer casing assembly, and an opening is formed between the inner abutting elastic piece and the outer abutting elastic piece, and the insulating seat is disposed in the opening and formed a plurality of strip-shaped protrusions disposed at a plurality of intervals toward the first terminal and the second terminal; and a built-in circuit board having one end at the end for corresponding connection with the first soldering portion and the second soldering portion a first gold finger and a second gold finger at the other end and electrically connected to the first gold finger; the flat cable has a plurality of wires corresponding to the second gold finger and a layer fixed outside the plurality of wires The plurality of wires are arranged side by side and their axes are on the same plane. The cable connector of claim 1, wherein the front end of the inner abutting elastic piece is reversely bent to form a U-shaped head, and the U-shaped head is located along the length direction of the cable connector. A contact portion, a second contact portion and a front end surface of the cable connector. The cable connector of claim 1, wherein the two sides of the upper and lower grounding strips are respectively formed with fixing legs extending along the height direction of the cable connector, which are viewed along the length of the cable connector, The abutting elastic piece is located between the inner abutting elastic piece and the fixing leg, and the first body and the second body are correspondingly provided with fixing grooves for receiving the fixing leg. The cable connector of claim 1, wherein the rear end of the central grounding piece is provided with an extending arm extending to both sides, and the rear end of the ground locking arm is elastically overhanging in an opposite direction, the end of the extending arm And the rear end of the grounding lock arm is in contact with the foregoing outer casing assembly. The cable connector of claim 1, wherein the wire comprises a first wire and a second wire forming a differential signal pair, the first wire and the second wire respectively having a first position at a center position a conductor, a first cladding layer covering the periphery of the first conductor, and a second cladding layer covering the periphery of the first cladding layer, wherein the first cladding layer has a lower dielectric constant than the second cladding layer Dielectric coefficient. The cable connector of claim 5, wherein the wire further comprises a third wire, the third wire having a second conductor at a central position and a third package covering the periphery of the second conductor a coating, the diameter of the second conductor is different from the first conductor of the first conductor and the second conductor The diameter of the body. A cable connector comprising: a first terminal assembly having a plurality of first terminals and a first body fixed around the first terminals, the first body comprising a first tongue portion and a first mounting portion; the second terminal The assembly has a plurality of second terminals and a second body fixed around the second terminals, the second body includes a second tongue and a second mounting portion; the central grounding unit is disposed between the first body and the second body a grounding assembly mounted on the first terminal assembly and the second terminal assembly, and including a grounding piece and a lower grounding piece above and below the central grounding unit; the housing assembly including the front housing and the front housing After the body is rearward, the front case completely covers the first tongue portion and the second tongue portion of the first terminal assembly and the second terminal assembly, the central grounding unit, the grounding component, and the like, and the rear housing is covered by the rear housing a first mounting portion and a second mounting portion of the first terminal assembly and the second terminal assembly, wherein the housing assembly is electrically connected to the grounding assembly, and the front housing has an elliptical cross section and is integrated The rear housing is stacked on the rear end of the front housing, and the rear housing includes an outer portion that is stacked on the rear end of the front housing and a cover portion that covers the first mounting portion and the second mounting portion. The front end of the portion is provided with a tear-formed flange, the two sides of the cover portion are provided with solder legs extending along the height direction of the cable connector; the built-in circuit board has one end at the end to correspond to the first terminal and the second terminal a first gold finger connected and a second gold finger at the other end and electrically connected to the first gold finger; the flat cable has a plurality of wires corresponding to the second gold finger and is fixed outside the plurality of wires The layers, the plurality of wires are arranged side by side and their axes are on the same plane. The cable connector of claim 7, wherein the outer portion has an elliptical annular design and is welded to the rear end of the front casing, and the flange is disposed above and below the outer portion. side. A cable connector comprising: a first terminal assembly having a plurality of first terminals and a first body fixed around the first terminals, the first body comprising a first tongue portion and a first mounting portion; the second terminal The assembly has a plurality of second terminals and a second body fixed around the second terminals, the second body includes a second tongue and a second mounting portion; the central grounding unit is disposed between the first body and the second body a grounding assembly mounted on the first terminal assembly and the second terminal assembly, and including a grounding piece and a lower grounding piece above and below the central grounding unit; the housing assembly including the front housing and the front housing After the body is rearward, the front case completely covers the first tongue portion and the second tongue portion of the first terminal assembly and the second terminal assembly, the central grounding unit, the grounding component, and the like, and the rear housing is covered by the rear housing a first mounting portion and a second mounting portion of the first terminal assembly and the second terminal assembly, wherein the housing assembly is electrically connected to the grounding assembly; the built-in circuit board has a first end and the first a first gold finger connected to the second terminal and a second gold finger at the other end and electrically connected to the first gold finger; and a flat cable having a plurality of wires corresponding to the second gold finger and fixed to the wire The outer side of the plurality of wires is a layer, the plurality of wires are arranged side by side and the axes thereof are on the same plane; wherein the wires comprise a first wire and a second wire forming a pair of differential signals, the first wire and the second wire respectively having a first conductor at a central location, a first cladding layer overlying the periphery of the first conductor, and a second cladding overlying the periphery of the first cladding layer In the layer, the dielectric coefficient of the first cladding layer is lower than the dielectric constant of the second cladding layer. The cable connector of claim 9, wherein the wire further comprises a third wire, the third wire having a second conductor at a central position and a third package covering the periphery of the second conductor And a cladding, wherein the diameter of the second conductor is different from the diameter of the first conductor of the first wire and the second wire. A cable connector comprising: a first terminal assembly having a plurality of first terminals and a first body fixed around the first terminals, the first body comprising a first tongue portion and a first mounting portion; the second terminal The assembly has a plurality of second terminals and a second body fixed around the second terminals, the second body includes a second tongue and a second mounting portion; the central grounding unit is disposed between the first body and the second body a grounding assembly mounted on the first terminal assembly and the second terminal assembly, and including a grounding piece and a lower grounding piece above and below the central grounding unit; the housing assembly including the front housing and the front housing After the body is rearward, the front case completely covers the first tongue portion and the second tongue portion of the first terminal assembly and the second terminal assembly, the central grounding unit, the grounding component, and the like, and the rear housing is covered by the rear housing a first mounting portion and a second mounting portion of the first terminal assembly and the second terminal assembly, wherein the housing assembly is electrically connected to the grounding assembly; the built-in circuit board has a first end and the first a first gold finger connected to the second terminal and a second gold finger at the other end and electrically connected to the first gold finger; and a flat cable having a plurality of wires corresponding to the second gold finger and fixed to the wire The outer side of the plurality of wires is layered outside, the plurality of wires are arranged side by side and the axes thereof are on the same plane; The central grounding unit includes a central grounding plate fixed between the first body and the second body, and a grounding locking arm extending to the side of the first terminal and the second terminal, and the rear end of the central grounding plate is provided with two The extending arm of the side extending, the end of the extending arm is in contact with the rear casing, and the rear end of the ground locking arm is elastically suspended in the opposite direction and elastically abuts against the front casing to electrically connect the outer casing assembly to the central grounding unit. .