TWI594518B - Electrical connector - Google Patents

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: The electrical connector includes an insulative housing and at least one row of conductive terminals arranged in an array arranged in the insulative housing. 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 grounding terminal, and the electrical connector further includes a metal piece disposed on the mounting surface, the metal piece contacting the grounding terminal of the conductive terminal.

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‧‧‧Insulated body

101‧‧‧ docking

102‧‧‧Installation surface

103‧‧‧Depression

104‧‧‧ holding slot

108‧‧‧ containment chamber

11‧‧‧Base

118‧‧‧ convex

12‧‧‧Docking Department

121‧‧‧Terminal slot

122‧‧‧ Reception trough

20‧‧‧Electrical terminals

201‧‧‧Signal terminals

202‧‧‧ Grounding terminal

21‧‧‧Contacts

22‧‧‧ Holding Department

23‧‧‧Connecting Department

231‧‧‧Welding Department

232‧‧‧Transition Department

25‧‧‧Protruding

30‧‧‧Shaded housing

31‧‧‧First fixed piece

32‧‧‧Second fix

40‧‧‧ Positioning parts

41‧‧‧First positioning piece

411‧‧‧ base

412‧‧‧Detention Department

413‧‧‧First positioning foot

42‧‧‧Second positioning parts

421‧‧‧ Board

422‧‧‧barb

423‧‧‧Second positioning feet

50‧‧‧metal pieces

51‧‧‧ Main body

52‧‧‧Fixed Department

53‧‧‧ lap joint

54‧‧‧ Grounding feet

55‧‧‧Incision

60‧‧‧ mask piece

61‧‧‧ Main body

62‧‧‧ pins

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.

The fourth figure 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.

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. It can be defined as the mating surface 101. The lower surface of the insulative housing is a mounting surface 102 that mates with the circuit board. The mating surface 101 and the mounting surface 102 are opposite 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 mutually The lap portion 53 is laterally protruded 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 buckle portion 412 bent perpendicularly from the top end of the base portion, and a second portion extending downward from the base portion and having a reduced size A positioning leg 413 is fastened in the recess provided by the upper surface of the abutting portion (ie, the abutting surface 101), and the abutting portion is fastened 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.

In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. However, the above is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above-described embodiments, and those skilled in the art will be able to make equivalent modifications or changes in accordance with the spirit of the present invention. It is covered by the following patent application.

102‧‧‧Installation surface

103‧‧‧Depression

118‧‧‧ convex

201‧‧‧Signal terminals

202‧‧‧ Grounding terminal

25‧‧‧Protruding

55‧‧‧ interface

62‧‧‧ pins

Claims (10)

An electrical connector includes an insulative housing and two rows of conductive terminals arranged in an array arranged in the insulative housing. 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 surface. The connecting portion, each row of conductive terminals includes a signal terminal and a grounding terminal, and the electrical connector further comprises a metal piece disposed on the mounting surface, wherein the metal piece contacts the grounding terminal of the conductive terminal, and the electrical connector further comprises two A mask sheet is disposed between the contact portions of the conductive terminals, and the metal piece is electrically connected to the mask sheet. 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 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 mask sheet has a plurality of pins, and the metal sheet is correspondingly provided with a slit, and the pins pass through the slit and are in contact with the metal sheet in the slit. The electrical connector of claim 1, wherein the mounting surface is provided with a plurality of conductive The terminal has a convex portion spaced apart from each other, and the connecting portion of the conductive terminal includes a welded portion and a transition portion, the welded portion is flush with the convex portion, and the transition portion is retracted from the convex portion. 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.