TWI549380B - Electrical connector - Google Patents

Description

Electrical connector

The present invention is directed to an electrical connector.

The Chinese Patent Application No. CN201120275305.5 (corresponding to Taiwan No. 100127952) discloses an electrical connector comprising a first insulative housing, a plurality of conductive terminals and a first housing. The first housing shields the outside of the first insulative housing. The insulating body has a tongue plate and a plurality of holding grooves provided on the tongue plate. The conductive terminal includes a contact portion and a body portion extending from the contact portion, wherein the body portion is fixed in the holding groove. The contact portion is thinner than the body portion to avoid a sudden change in impedance at the butt joint. However, since the thickness is thinned, the contact portion is weak in rigidity, and intimate contact between the contact portion of the conductive terminal and the terminal of the mating connector cannot be ensured.

The application number CN201110099693.0 Chinese Patent (Taiwan No. 100119724; US Pat. No. 8,353,726) discloses an electrical connector including an insulative body, a first terminal and a first grounding member. The insulative body is provided with a tongue extending forward. The first terminal has a contact segment that is located on the first surface of the tongue. The first grounding member is embedded at the front end of the tongue and connected to the grounding terminal of the first terminal. The front end of the ground terminal forms a bent portion to contact the first grounding member. However, if a bent portion is formed at the front end of the ground terminal, an additional process step is added, and for the terminal assembled from the back to the front and provided on the tongue plate, the terminal having the bent portion at the front end is not easily assembled. Furthermore, the front end of the ground terminal contacts the first grounding member, and has limited effects on reducing the electrical length, increasing the resonant frequency and the signal transmission rate.

A cable connector including an insulative housing and a plurality of the same is disposed on the insulative housing, and is disclosed in the Chinese Patent Application No. US Pat. a terminal, wherein a hollow portion is provided between the contact portions of the terminals on the insulative housing.

In addition, the above three patent cases use different technical means to reduce signal crosstalk, but the technical methods disclosed in the three patent cases still cannot meet the requirements of higher signal transmission rate and higher signal integrity.

In accordance with the above problems, the present invention correspondingly proposes new and different electrical connectors.

An electrical connector according to an embodiment of the invention includes an elongated insulative housing and at least a first set of terminals. The elongated insulative housing includes a base, a tongue protruding from the base, and a plurality of terminal slots formed on the insulative housing. One side of the tongue is provided with at least one first tongue portion. The terminal slots extend to the first tongue portion. There are partition walls between the terminal slots. The first set of terminals contains a plurality of terminals. The plurality of terminals includes at least a signal terminal pair composed of two signal terminals and a ground terminal respectively located on opposite sides of the signal terminal pair. The signal terminals and the ground terminals are respectively mounted on the terminal slots. Each of the first set of terminals includes a retaining portion retained in the corresponding terminal slot, a tail portion extending from the retaining portion, and a plate contact extending from the retaining portion to the first tongue portion and exposed to the first tongue portion And a holding bump. The plate contact portion of each terminal includes a thick section and a thinned section extending from the end of the thick section. The holding bumps of the respective terminals are disposed beside the boundary between the thick section and the thinned section. The holding projections of the respective terminals are interference-fixed with the inner walls of the corresponding terminal slots. At least a groove is formed in the partition wall between each of the ground terminals and the signal terminal adjacent thereto, so that the ground terminals and the side edges of the signal terminals adjacent thereto are exposed to each other.

In some embodiments, the electrical connector further includes a first common grounding member. The first common grounding member includes a plurality of fingers, wherein the first common grounding member is disposed at the base portion and located behind the first tongue portion, and each of the fingers contacts a corresponding one of the first group of terminals.

In some embodiments, the elongate insulative housing includes a plurality of support blocks, wherein each support block is disposed within a corresponding terminal slot that extends onto the first tongue portion and is located in a thinned section of the corresponding one of the first set of terminals Below, to support the thinning section.

In some embodiments, each support block partially supports a thinned section of the corresponding terminal.

In some embodiments, the electrical connector includes a second set of terminals. The other side of the tongue is provided with a second tongue portion. The insulative housing is provided with a plurality of terminal slots extending to the second tongue portion. The second group of terminals includes a signal terminal pair composed of two signal terminals and a ground terminal respectively located on both sides of the signal terminal pair of the second group terminal. Two signal terminals of the second group of terminals and the ground terminals Installed in a terminal slot that extends to the second tongue portion.

In some embodiments, the electrical connector includes a second co-ground member. The second common grounding member includes a plurality of fingers. The second common grounding member is assembled at a base behind the second tongue portion. Each finger of the second common grounding member contacts a corresponding one of the second set of terminals.

In at least some embodiments, the electrical connector includes a third set of terminals. The other side of the tongue plate is provided with a third tongue portion. The insulative housing is provided with a plurality of terminal slots extending to the third tongue portion. The third set of terminals are mounted on the terminal slots of the third tongue portion.

In some embodiments, the insulative housing further includes a slot alongside the tongue and a plurality of terminals extending partially within the slot.

In at least some embodiments of the present invention, the flat connector portion of the electrical connector having the signal terminal and the ground terminal has a thinned end segment, the side of the flat contact portion between the signal terminal and the ground terminal directly faces, and the ground terminal is Features such as common ground connection and the like, so that the signal crosstalk generated by the terminals of the electrical connector or the coupling between them can be reduced, which is beneficial to high-speed transmission of signals and signal integrity. In addition, the flat plate contact portion of the terminal can be firmly fixed by the holding bump adjacent to the thin portion of the flat plate contact portion of the terminal and the thick portion.

1‧‧‧ boards

2‧‧‧Electrical connector

21‧‧‧Insulated body

22‧‧‧First set of terminals

22a‧‧‧Signal terminals

22b‧‧‧ Grounding terminal

23‧‧‧First common grounding parts

24‧‧‧Second group terminal

24a‧‧‧Signal terminals

24b‧‧‧ Grounding terminal

25‧‧‧Second common grounding piece

26‧‧‧third group terminal

27‧‧‧ Terminal

210‧‧‧ slots

211‧‧‧ base

212‧‧‧ tongue plate

213‧‧‧Terminal slot

214‧‧‧ Groove

215‧‧‧Support block

216‧‧‧Terminal slot

217‧‧‧Terminal slot

221‧‧‧ Holding Department

222‧‧‧ tail

223‧‧‧Slab contact

224‧‧‧ holding bumps

231‧‧ ‧ fingers

251‧‧ ‧ fingers

271‧‧‧Contacts

2121‧‧‧First tongue part

2122‧‧‧Second tongue part

2123‧‧‧ Third tongue part

2131‧‧‧ partition wall

2231‧‧‧ Thick section

2232‧‧‧ Thin section

1 is a schematic view of an embodiment of the present invention, illustrating an electrical connector and a circuit board.

2 is a schematic view of an embodiment of the present invention, illustrating a partial insulative housing, a first set of terminals, and a first common grounding member.

3 is a schematic view of an embodiment of the present invention, illustrating a partial insulative housing and a first set of terminals.

4 is a schematic diagram of an electrical connector in accordance with an embodiment of the present invention.

Figure 5 is a cross-sectional view taken along line 1000-1000 of Figure 4.

Figure 6 is a cross-sectional view taken along line 2000-2000 of Figure 4;

Figure 7 is another schematic view of an electrical connector in accordance with an embodiment of the present invention.

FIG. 8 is an exploded perspective view of an electrical connector according to an embodiment of the present invention.

Referring to Figures 1 to 3, the electrical connector 2 can be disposed on the circuit board 1 to interface with a pair of connectors. The electrical connector 2 includes an elongated insulative body 21 and at least a first set of terminals 22 including a plurality of terminals (22a and 22b). The insulative housing 21 includes a base portion 211, a tongue plate 212, and a plurality of terminal slots 213. The tongue 212 protrudes from the base 211. One side of the tongue 212 is provided with at least one first tongue portion 2121. The plurality of terminal slots 213 correspond to the first set of terminals 22. A plurality of terminal grooves 213 are formed on the insulative housing 21 and extend to the first tongue portion 2121. On the first tongue portion 2121, a partition wall body 2131 is interposed between the plurality of terminal grooves 213; or the adjacent two terminal slots 213 are at least partially separated by a partition wall body 2131.

Referring to Figures 2 and 3, the first set of terminals 22 includes at least one signal terminal pair and a plurality of ground terminals 22b. The signal terminal pair is composed of two signal terminals 22a. A ground terminal 22b is respectively disposed on both sides of the pair of signal terminals. The signal terminal 22a and the ground terminal 22b are respectively mounted in the plurality of terminal slots 213. Referring to Figure 2, in some embodiments, the first set of terminals 22 includes two pairs of signal terminals and a ground terminal 22b located on either side of each pair of signal terminals.

Referring to FIG. 3, each terminal (22a or 22b) of the first group of terminals 22 includes a holding portion 221, a tail portion 222, a flat plate contact portion 223, and a holding bump 224. The holding portion 221 of each terminal (22a or 22b) is held in the corresponding terminal groove 213. The tail portion 222 of each terminal (22a or 22b) extends from the holding portion 221. The flat plate contact portion 223 of each terminal (22a or 22b) extends from the holding portion 221 to the first tongue portion 2121 and is exposed to the first tongue portion 2121 to contact the corresponding terminal on the docking device. The holding projections 224 of the respective terminals (22a or 22b) are located in the terminal grooves 213 extending to the first tongue portion 2121, and are interference-fixed with the inner walls of the corresponding terminal grooves 213.

Referring to FIGS. 4-6, the flat contact portion 223 of each terminal (22a or 22b) includes a thick section 2231 and a thinned section 2232. The thick section 2231 can be extended by the retaining portion 221, and the thinned section 2232 is extended from the end of the thick section 2231. Each of the terminals (22a or 22b) is provided with a thinning section 2232, which can reduce the variation of the characteristic impedance generated at the free end of the thinning section 2232 from the contact point when the terminals (22a or 22b) and the terminal of the docking device are in contact with each other. Reduce the interference of the antenna-like coupling effect. Referring to FIG. 3, the holding bumps 224 may be disposed beside the boundary between the thick section 2231 and the thinned section 2232. Since the holding protrusion 224 is interference-fixed with the inner wall of the corresponding terminal groove 213, the holding protrusion 224 can also provide the weaker thinning section 2232 to support the corresponding terminal (22a or 22b). It can be in close contact with the terminals of the docking device. In some embodiments, the holding bump 224 can be disposed beside the boundary between the thick section 2231 and the thinned section 2232, and is located on the thick section 2231, but the invention is not limited thereto.

Referring to FIG. 3, at least the spacers 214 are provided on the partition wall 2131 between the ground terminals 22b and the signal terminals 22a adjacent thereto, so that the ground terminals 22b and the side of the signal terminal 22a adjacent thereto are provided. Exposed to each other, such that the ground terminals 22b and the signal terminals 22a adjacent thereto are spaced apart from each other by the air having a lower dielectric constant than the insulating body 21, thereby reducing the distance between each of the ground terminals 22b and the signal terminal 22a adjacent thereto. The capacitance value reduces signal crosstalk.

Referring to Figures 2 and 6, the electrical connector 2 includes a first common grounding member 23. The first common grounding member 23 includes a plurality of fingers 231. The plurality of fingers 231 correspond to the ground terminal 22b. The first common grounding member 23 is disposed on the base portion 211 and located behind the first tongue portion 2121, and each finger portion 231 contacts the corresponding ground terminal 22b on the first group of terminals 22. Since the first common grounding member 23 is disposed behind the first tongue portion 2121, the first common grounding member 23 can be contacted on each of the terminals 22b near the intermediate portion, across the pair of signal terminals, and the signal terminals or between the signal terminals are lowered. Signal crosstalk generated by the coupling. Since the fingers 231 contacting the respective terminals 22b are formed on the first common grounding member 23, it is not necessary to form the bent portions on the respective terminals 22b, so that the process of adding the terminals 22b is not required, and the assembly of the terminals 22b is easy. Referring to FIG. 6, in some embodiments, the first common grounding member 23 is mounted behind the base portion 211 from the rear of the base portion 211, and the fingers 231 of the first common grounding member 23 are inclined toward the rear end of the corresponding terminal 22b and the base portion 211. The extension is such that the finger 231 can be brought into close contact with the terminal 22b after the terminal 22b is mounted.

Referring to FIGS. 3, 5 and 6, the insulative housing 21 includes a plurality of support blocks 215. Each of the support blocks 215 is disposed in a corresponding terminal groove 213 that extends to the first tongue portion 2121 and is located below the thinned portion 2232 of the terminal (22a or 22b). Each support block 215 is used to support the thinned section 2232 of the corresponding terminal (22a or 22b) such that the terminal (22a or 22b) is in close contact with the terminal of the docking device. In some embodiments, each support block 215 partially supports the thinned section 2232 of the corresponding terminal (22a or 22b) such that the thinned section 2232 of each terminal (22a or 22b) and the bottom of the corresponding terminal slot 213 remain. space.

Referring to Figures 7 and 8, in some embodiments, the other side of the tongue 212 of the insulative housing 21 is provided with a second tongue portion 2122. The insulating body 21 is further provided with a plurality of terminal slots 216, the terminal slot 216 extends to the second tongue portion 2122. The electrical connector 2 includes a second set of terminals 24. The second group of terminals 24 includes at least one signal terminal pair and a ground terminal 24b respectively located on opposite sides of the signal terminal pair, and each signal terminal pair includes two signal terminals 24a. The signal terminal 24a and the ground terminal 24b of the second group of terminals 24 are mounted to the terminal slots 216 that extend to the second tongue portion 2122. In some embodiments, the second set of terminals 24 includes two pairs of signal terminals and ground terminals 24b that are respectively located on opposite sides of each of the pair of signal terminals.

Referring to FIG. 8, the electrical connector 2 includes a second grounding member 25. The second common grounding member 25 includes a plurality of fingers 251, and the plurality of fingers 251 correspond to the ground terminals 24b of the second group of terminals 24. The second common grounding member 25 is a base portion 211 assembled behind the second tongue portion 2122, and each finger portion 251 of the second common grounding member 25 contacts a corresponding one of the second group of terminals 24b.

Referring to FIGS. 7 and 8, in some embodiments, the other side of the tongue 212 of the insulative housing 21 is provided with a third tongue portion 2123. The insulative housing 21 is provided with a plurality of terminal slots 217 that extend to the third tongue portion 2123. The electrical connector 2 includes a third set of terminals 26. The terminals of the third group of terminals 26 are respectively mounted in terminal slots 217 that extend to the third tongue portion 2123.

Referring to Figures 7 and 8, in some embodiments, the insulative housing 21 includes a slot 210 alongside the tongue 212. The electrical connector 2 includes a plurality of terminals 27 extending partially within the slot 210, each terminal 27 including a contact portion 271. The terminal 27 is fixed to the insulative housing 21, and the terminal 27 partially or the terminal 27 contact portion 271 extends within the slot 210.

In at least some embodiments, the electrical connector has a signal terminal and a ground terminal. Since the flat contact portion of the signal terminal and the ground terminal has a thinned end section, the side of the flat contact portion between the signal terminal and the ground terminal directly faces, and the ground terminal is connected by a common grounding member, etc., so that the terminal of the electrical connector The signal crosstalk generated by or between the couplings can be reduced, which facilitates high-speed transmission of signals and signal integrity. Further, the flat plate contact portion of the terminal can be firmly fixed by the holding bump adjacent to the boundary between the thinned portion and the thick portion of the flat plate contact portion of the terminal.

The technical content and technical features of the present disclosure have been disclosed as above, and those skilled in the art can still make various substitutions and modifications without departing from the spirit and scope of the disclosure. Therefore, the scope of the present disclosure is not to be construed as being limited by the scope of

2‧‧‧Electrical connector

21‧‧‧Insulated body

22‧‧‧First set of terminals

22a‧‧‧Signal terminals

22b‧‧‧ Grounding terminal

211‧‧‧ base

212‧‧‧ tongue plate

213‧‧‧Terminal slot

214‧‧‧ Groove

215‧‧‧Support block

221‧‧‧ Holding Department

222‧‧‧ tail

223‧‧‧Slab contact

224‧‧‧ holding bumps

2121‧‧‧First tongue part

2131‧‧‧ partition wall

2231‧‧‧ Thick section

2232‧‧‧ Thin section

Claims (10)

An electrical connector comprising: an elongated insulating body comprising a base, a tongue protruding from the base, and a plurality of terminal slots formed on the insulating body, the one side of the tongue being provided with at least one first tongue a terminal portion extending to the first tongue portion, wherein the terminal slots have a partition wall; and at least a first set of terminals including a plurality of terminals, the plurality of terminals comprising at least two signal terminals a signal terminal pair and a grounding terminal respectively located on opposite sides of the pair of signal terminals, wherein the signal terminals and the grounding terminals are respectively mounted on the terminal slots, and each of the first group of terminals includes a holding portion corresponding to the a retaining portion in the terminal slot, a tail portion extending from the retaining portion, a plate contact portion extending from the retaining portion to the first tongue portion and exposed to the first tongue portion, and a retaining bump, each of the retaining portions The plate contact portion of the terminal includes a thick section and a thinned section extending from the end of the thick section, and the holding protrusion of each of the terminals is disposed beside the thick section and the thinned section, wherein each of the terminals The holding bump and the pair The inner wall of the terminal slot is interference-fixed; wherein at least the space between the ground terminal and the signal terminal adjacent thereto is provided with a groove, so that the ground terminal and the adjacent portion thereof The sides of the signal terminals are exposed to each other. The electrical connector of claim 1, further comprising a first common grounding member, the first common grounding member comprising a plurality of fingers, wherein the first common grounding member is disposed at the base portion and located at the base Behind the first tongue portion, each of the fingers contacts a corresponding one of the first set of terminals. The electrical connector of claim 1, wherein the elongated insulative housing comprises a plurality of support blocks, wherein each of the support blocks is disposed in a corresponding one of the terminal slots extending to the first tongue portion, and Positioned below the thinned section of the corresponding one of the first set of terminals to support the thinned section. The electrical connector of claim 3, wherein each of the support blocks partially supports the thinned section of the corresponding terminal. The electrical connector of claim 1, wherein the first set of terminals comprises two signal terminal pairs and a ground terminal located on each side of each of the signal terminal pairs. The electrical connector according to any one of claims 1 to 5, further comprising a second set of terminals, wherein the other side of the tongue is provided with a second tongue portion, the insulating body is provided to extend to a plurality of terminal slots of the second tongue portion, the second group of terminals comprising a signal terminal pair composed of two signal terminals and a ground terminal disposed on both sides of the signal terminal pair of the second group terminal, the second group terminal The two signal terminals and the ground terminals are mounted on the terminal slots extending to the second tongue portion. The electrical connector of claim 6, wherein the second set of terminals comprises two signal terminal pairs and a ground terminal respectively located between the two signal terminal pairs. The electrical connector of claim 6, comprising a second common grounding member, the second common grounding member comprising a plurality of fingers, wherein the second common grounding member is assembled behind the second tongue portion The base portion of each of the second common ground contacts contacts the corresponding one of the second set of terminals. The electrical connector according to item 6 of the patent application scope, comprising a third group a terminal, wherein the other side of the tongue is provided with a third tongue portion, the insulating body is provided with a plurality of terminal slots extending to the third tongue portion, wherein the third group of terminals is mounted to extend to the third The terminal slots of the tongue portion. The electrical connector of claim 6, wherein the insulative housing further comprises a slot alongside the tongue and a plurality of terminals extending partially within the slot.