TW201438354A - Electrical connector - Google Patents

Abstract

An electrical connector comprises an insulative housing and a plurality of contacts arranged in at least one row. The insulative housing defines a mating face and a mounting face. Each contact includes a contacting portion extending towards the mating face and a connecting portion located at the mounting face. Each row of contacts includes signal contacts and grounding contacts. The electrical connector also includes a metal plate located at the mounting face to contact the grounding contacts. It is helpful to improve high-frequency performance.

Description

Electrical connector

The present invention relates to an electrical connector, and more particularly to an electrical connector having a grounded metal strip.

With the development of notebook computers that are light, thin, short, and small, notebook computers cannot be equipped with enough functional components due to the small internal space. It is often necessary to provide expansion devices to add functional components or provide functions for connecting external peripheral devices. Common expansion devices include a Card Bus, a Docking Station, and an external Port Replicator. The current Docking Station can provide COM, GAME, or LPT埠 external plug-in service, increase the number of hard disk drives (HDD) or CD-ROM (CD-ROM), and provide video output (TV-OUT) or universal The serial bus interface (USB) is externally connected to the plug-in service. The Docking Station is usually equipped with a high-density electrical connector as an external interface for connection to a notebook computer. However, as the transmission speed increases, the crosstalk between signals becomes more serious.

Therefore, it is necessary to improve the conventional electrical connector to overcome the above drawbacks.

In view of the above, it is an object of the present invention to provide an electrical connector having good high frequency performance.

In order to achieve the foregoing object, the object of the present invention is achieved by the following technical solutions: an electrical connector including an insulative housing and at least one row of conductive terminals fixed in a row and arranged in an array, the insulative housing defines a mating surface and mounting The conductive terminal includes a contact portion extending toward the mating surface and a connecting portion extending to the mounting surface, each row of conductive terminals including a signal terminal and a ground terminal, the electrical connector further comprising a metal piece disposed on the mounting surface, the metal piece contacting a ground terminal of the above conductive terminals.

Compared with the prior art, the present invention has the following beneficial effects: the metal sheet structure in the present invention helps to reduce the potential difference between the ground terminals, and improves the high frequency performance of the conductive terminals.

100. . . Electrical connector

10. . . Insulating body

101. . . Docking surface

102. . . Mounting surface

103. . . Depression

104. . . Holding groove

108. . . Containment chamber

11. . . Pedestal

118. . . Convex

12. . . Docking

121. . . Terminal slot

122. . . Storage slot

20. . . Conductive terminal

201. . . Signal terminal

202. . . Ground terminal

twenty one. . . Contact

twenty two. . . Holding unit

twenty three. . . Connection

231. . . Welding department

232. . . Transition department

25. . . Protruding

30. . . Shaded housing

31. . . First fixed piece

32. . . Second fixed piece

40. . . Positioning member

41. . . First positioning member

411. . . Base

412. . . Buckle department

413. . . First positioning foot

42. . . Second positioning member

421. . . Plate

422. . . Barb

423. . . Second positioning foot

50. . . Metal sheets

51. . . Main body

52. . . Fixed part

53. . . Lap

54. . . Grounding foot

55. . . incision

60. . . Mask piece

61. . . Main body

62. . . Pin

The first figure is a perspective view of the electrical connector of the present invention;

The second figure is a schematic view of another angle of the first figure;

The third figure is an exploded view of the first figure;

Figure 4 is a perspective view of the conductive terminals of the electrical connector of the present invention;

The fifth figure is a partial enlarged view of the second figure; and

Figure 6 is a cross-sectional view of the first figure taken along line VI-VI.

As shown in the first and second figures, the present invention discloses an electrical connector 100 including an insulative housing 10, a conductive terminal 20 fixed to the insulative housing, a shielding housing 30 shielding the conductive terminal, and fixing the electrical connector. A positioning member 40 to a circuit board (not shown).

Referring to the third to sixth figures, the insulative housing 10 includes an elongated base 11 and abutting portion 12. The base 11 is hollow, defining an inner cavity with an opening upward. The abutting portion 12 is formed in the inner cavity 11 and opens to the opening. The direction extends. The upper surface of the abutting portion 12 is flush with the upper surface of the base, and may be defined as an abutting surface 101. The lower surface of the insulating body is a mounting surface 102 that cooperates with the circuit board, and the abutting surface 101 and the mounting surface 102 are opposed to each other.

The abutting portion 12 is provided with a plurality of terminal slots 121 which are arranged in two rows. The terminal groove 121 extends from the mounting surface 102 toward the mating surface 101 and penetrates the mounting surface and the mating surface. The conductive terminals 20 have the same structure, and can be divided into a signal terminal 201 and a ground terminal 202 when transmitting signals, and the ground terminal 202 is spaced apart from each pair of signal terminals 201. The conductive terminal includes a contact portion 21 protruding from the terminal slot, a retaining portion 22 held in the terminal slot, and a connecting portion 23 extending to the mounting surface. The connecting portion 23 includes a soldering portion 231 and a connecting solder portion directly pressed against the circuit board. Transition portion 232 of the fixed portion. The connecting portion 23 is not limited to being soldered to the circuit board. The mounting surface 102 is provided with a plurality of convex portions 118 that are spaced apart from each other by the conductive terminals. The welded portion 231 is flush with the convex portion, and the transition portion 232 is retracted from the convex portion. Referring to the third and fourth figures, the contact portion 21 is formed to extend from the holding portion 22 toward the abutting surface, and the connecting portion extends in a direction perpendicular to the holding portion (ie, horizontal). The ground terminal also includes a projection 25 extending from and coplanar with the bottom end of the retaining portion, the projection being exposed to the mounting surface 102. The connecting portions 23 of the two rows of conductive terminals respectively extend to both sides, and the metal piece is located between the connecting portions of the two rows of conductive terminals. Of course, in order to facilitate the molding of the conductive terminal, the signal terminal 201 and the ground terminal 202 have the same structure in this embodiment.

Referring to the third, fifth and sixth figures, the insulative housing 10 is provided with a recess 103 recessed from the mounting surface 102. A metal sheet 50 is received in the recess. The metal piece 50 includes an elongated flat main body portion 51, a fixing portion 52 extending from both ends of the flat plate portion in the direction of the abutting surface, a lap portion 53 formed by bending from both sides of the main body portion, and a grounding leg 54 extending from the main body portion. The grounding leg 54, the fixing portion 52 and the overlapping portion all extend away from the mounting surface 102 to cooperate with the circuit board. The main body portion 51 and the conductive terminals are spaced apart from each other, and the lap portion 53 protrudes laterally from the main body portion 51 to contact the ground terminal, and the end of the lap portion 53 is flush with the transition portion 232. A pair of holding grooves 104 corresponding to the fixing portion 52 are further disposed in the recessed portion 103. The fixing portion interferes with the fixing groove to fix the metal piece. The grounding leg 54 is connected to a grounding hole on the circuit board to achieve soldering of the metal piece. The lap portion 53 is pressed against the protruding portion 25, so that the ground terminals are directly connected, which helps to reduce the potential difference between the ground terminals and improves the high frequency performance of the conductive terminals.

The docking portion is further provided with a receiving slot 122 between the upper and lower rows of terminal slots 121, and the two rows of terminal slots are symmetric with respect to the receiving slot. The receiving groove 122 is for accommodating a mask sheet 60. The cover sheet includes a main body portion 61 and a plurality of pins 62 extending from the main body portion, and the main body portion 61 is coplanar with the pins 62. The metal sheet further includes a slit 55 disposed in the body portion 51 via which the pin 62 protrudes from the mounting surface 102 for soldering to the circuit board. It should be noted that the pin 62 is in contact with the metal piece in the slit 55 to achieve electrical connection. Since the receiving slot 122 is located between the upper and lower terminals, the mask piece is located between the two rows of conductive terminals after the installation, especially between the two rows of contact portions 21, reducing signal crosstalk between the two rows of terminals.

The shielding shell 30 is attached to the longitudinally outer side surface of the base 11 , and the first fixing piece 31 of the upper edge is clamped on the longitudinal side wall and the second fixing piece 32 is inserted into the fixing hole 119 of the opposite end wall. . The shielding body, the mask piece 62 and the metal piece 50 cooperate together to reduce signal interference between the terminals and the external environment.

The positioning member 40 includes a first positioning member 41 and a second positioning member 42 in combination with the second and third figures. The first positioning member 41 is mounted to the insulative housing 10 from the mating surface and is located on the longitudinal sides of the abutting portion 12. The first positioning member includes a base portion 411 in a "匚" shape, a fastening portion 412 bent perpendicularly from the top end of the base portion, and a first positioning leg 413 extending downward from the base portion and reduced in size. The fastening portion 412 is fastened to the docking portion. In the recess provided in the upper surface of the portion (ie, the abutting surface 101), the abutting portion is held in the recess. The second positioning member 42 is mounted to the insulative housing 10 from the mounting surface and is located on the longitudinal sides of the base 11. The second positioning member 42 includes a plate-shaped portion 421, a pair of barbs 422 that are folded upward from the plate-shaped portion, and a second positioning leg 423 that is rolled downward from the plate-shaped portion. The second positioning leg 423 is inverted with a pair of legs. Between the hooks 422. A receiving cavity 108 is formed between the base 11 and the butting portion 12 for receiving a corresponding structure of a pair of connectors (not shown). The barb portion of the positioning member is hooked in the recess provided on the lower surface of the base (ie, the mounting surface), and the plate portion abuts against the base and faces the side of the abutting portion, and can be connected with the docking when docking The cover of the device is in contact with the cover for grounding. The second positioning leg 423 protrudes from the mounting surface and is fixed to the printed circuit board.

It is to be understood that the foregoing is only a preferred embodiment of the present invention, and those skilled in the art are able to make various alternatives and modifications without departing from the spirit and scope of the invention. Therefore, the scope of the present invention should be construed as being limited to the scope of the invention, and the equivalent equivalents and modifications of the present invention are intended to be included within the scope of the invention.

102. . . Mounting surface

103. . . Depression

118. . . Convex

201. . . Signal terminal

202. . . Ground terminal

25. . . Protruding

55. . . interface

62. . . Pin

Claims (10)

An electrical connector includes an insulative housing and at least one row of conductive terminals arranged in a row and arranged in an array. The insulative housing defines an abutting surface and a mounting surface. The conductive terminal includes a contact portion extending toward the mating surface and extending to the mounting The connecting portion of the surface, each row of conductive terminals includes a signal terminal and a ground terminal, and the electrical connector further includes a metal piece disposed on the mounting surface, wherein the metal piece contacts the ground terminal of the conductive terminal. The electrical connector of claim 1, wherein the metal piece comprises a main body portion, a lap portion extending from the main body portion, and a grounding leg, the main body portion and the conductive terminal are spaced apart from each other, and the lap portion is from the main body portion. It protrudes laterally to contact the ground terminal. The electrical connector of claim 2, wherein the overlapping portion of the grounding piece and the grounding leg extend away from the mounting surface. The electrical connector of claim 2, wherein the conductive terminal further comprises a holding portion fixed to the insulating body and a protruding portion extending from the holding portion to the mounting surface, and the overlapping portion of the metal piece is pressed against the Said the protrusion. The electrical connector of claim 4, wherein the connecting portion is formed by tearing and bending from the holding portion, and the bending portion forms the pair of protruding portions on the two sides of the connecting portion, each overlapping The part is pressed against the pair of protrusions. The electrical connector of claim 1, wherein the conductive terminal comprises two rows, the connecting portions of the two rows of conductive terminals extend to both sides, and the metal piece is located between the connecting portions of the two rows of conductive terminals. The electrical connector of claim 6, wherein the electrical connector further comprises a mask sheet, the mask sheet being located between the contact portions of the two rows of conductive terminals, the mask sheet having a plurality of pins, The metal piece is correspondingly provided with a slit through which the pin passes and contacts the metal piece in the slit. The electrical connector of claim 1, wherein the mounting surface is provided with a plurality of convex portions that are spaced apart from each other by the conductive terminals, and the connecting portion of the conductive terminals includes a welded portion and a transition portion, the welded portion and the convex portion Flat, the transition is retracted from the convex part. The electrical connector of claim 8, wherein the metal piece comprises a main body portion and a lap portion extending from the main body portion, and the lap portion protrudes laterally from the main body portion to contact the grounding terminal, and the lap portion The end is flush with the transition. The electrical connector of claim 1, wherein the electrical connector further comprises a positioning member, the positioning member comprises a first positioning member and a second positioning member, the first positioning member is mounted to the insulative body from the mating surface, and the second The positioning member is mounted to the insulating body from the mounting surface.