TWM502996U - Electrical connector - Google Patents

Description

Electrical connector

The present invention relates to an electrical connector, and more particularly to an electrical connector having a large number of terminals and capable of transmitting data at high speed.

The specification of the USB Type-C new connector was released on August 11, 2014. The Type-C connector is designed based on the USB 3.1 and USB 2.0 technologies. The USB Type-C is no longer directional except the socket interface. That is, the plug connector is inserted into the socket connector in both directions, and also supports USB 3.1 data transmission speed of 10 Gbit/s. According to the USB Type-C manual, usually the electrical connector includes a terminal block and is disposed at the terminal block. The upper and lower rows of conductive terminals include a power terminal, and a differential signal terminal (TX, RX Pairs) for transmitting and receiving data at a high speed adjacent to the power terminal. From the currently disclosed USB Type-C connector specification or other related materials, the two rows of conductive terminals are independent of each other and are not in contact with each other.

In response to market demand and adapting to the development direction of the industry, we actively develop USB Type-C connectors. During the high-frequency analysis in the R&D process, we found that the resonant frequency of the connector frequency domain parameters is over-specified and used to transmit and receive data. The crosstalk of the signal terminals is severe, which will slow down the data transmission.

Therefore, in view of the aforementioned technical problems, it is necessary to provide an improved structure. The electrical connector overcomes the aforementioned drawbacks.

The main purpose of this creation is to provide an electrical connector that improves the resonant point of the connector's frequency domain parameters and the crosstalk of the differential signal terminals.

In order to achieve the foregoing objectives, the present invention adopts the following technical solution: an electrical connector for fixing to a circuit board and docking with a pair of connectors, including a terminal block and being disposed above and below the terminal block The plurality of conductive terminals each include a contact portion that is butted to the mating connector, and the plurality of conductive terminals include a power terminal and a differential signal terminal for respectively transmitting and receiving data at a high speed, and are located in the upper row The power terminals are in electrical contact with the contact portions of the power terminals of the corresponding row in the lower row to form electrical parallel connection.

Compared with the prior art, the power terminals of the upper row of the present electrical connector are mechanically connected in parallel with the power terminals of the corresponding row in the lower row to form an electrical parallel connection, thereby improving the resonance point of the frequency domain parameter of the connector. In particular, it improves the crosstalk of all differential signal terminals beside the aforementioned power terminals.

100‧‧‧Electrical connector

1‧‧‧ terminal block

101‧‧‧ docking chamber

102‧‧‧Connecting tongue

103‧‧‧ Body Department

104‧‧‧Shielding board

1041‧‧‧ gap

105‧‧‧Steps

106‧‧‧ Grounding parts

1060‧‧‧ Grounding Department

1061‧‧‧Contacts

107‧‧‧Upper insulation

108‧‧‧lower insulation

109‧‧‧Internal Department

11‧‧‧Upper terminal receiving slot

111, 121‧ ‧ holes

12‧‧‧ Lower terminal receiving slot

2‧‧‧Upper row of conductive terminals

200‧‧‧ boards

201‧‧‧Contacts

202‧‧‧Intermediate

203‧‧‧welding feet

21‧‧‧Power terminal

211‧‧‧First bend

212‧‧‧First Extension

22‧‧‧Differential signal terminal

23‧‧‧Differential signal terminal

3‧‧‧Lower row of conductive terminals

301‧‧‧Contacts

302‧‧‧Intermediate

303‧‧‧ soldering feet

31‧‧‧Power terminal

311‧‧‧The second bend

312‧‧‧Second extension

32‧‧‧Differential signal terminal

33‧‧‧Differential signal terminal

4‧‧‧Metal housing

41‧‧‧Shrap

42‧‧‧ ribs

5‧‧‧metal cover

51‧‧‧Installation feet

The first figure is a three-dimensional combination diagram of the original electrical connector and the printed circuit board; the second figure is an exploded view of the original electrical connector; the third figure is an exploded view of the terminal block of the present electrical connector; Figure 3 is another perspective view of the third figure; the fifth figure is a partial exploded view of the present electrical connector; the sixth figure is another angle view of the fifth figure; Figure 7 is a perspective view of the conductive terminal of the present electrical connector; the eighth figure is a cross-sectional view of the first figure taken along the line VIII-VIII.

Referring to the first to second and fourth figures, the present electrical connector 100 is fixed to a circuit board 200 and can be docked with a pair of connectors (not shown), including a terminal block. 1. The conductive terminal 2 and the lower row of conductive terminals 3 disposed on the terminal block 1 , the metal case 4 surrounding the outside of the body of the terminal block 1 , and the metal cover 5 fixed to the outside of the metal case 4 .

Referring to the third to sixth figures, each of the terminals of the upper row of conductive terminals 2 has a substantially similar structure, and includes a contact portion 201, an intermediate portion 202, and a soldering leg 203 that are butted against the mating connector. Similarly, in the same manner, each of the terminals of the lower row of conductive terminals 3 is substantially similar in structure, and includes a contact portion 301, an intermediate portion 302, and a soldering leg 303 that are butted against the mating connector (fifth figure Show). The upper row of conductive terminals 2 includes a power supply terminal 21 and a power signal terminal 21 disposed adjacent to the power supply terminal 21 for transmitting a high-speed data to the differential signal terminal 22 and a high-speed receiving data for the differential signal terminal 23, and the lower row of the conductive terminal 3 includes The power terminal 31 and the adjacent power source terminal 31 are provided for transmitting a high-speed data to the differential signal terminal 32 and the high-speed receiving data to the differential signal terminal 33. The upper and lower rows of the conductive terminals further include a ground terminal ( Not numbered). The power terminals 21 located in the upper row are in mechanical contact with the power terminals 31 located in the lower row to form an electrical parallel connection. Specifically, the soldering legs 203 and 303 of the power terminals 21 and 31 are inserted and fixed on the circuit board 200 and are electrically connected to a power terminal (not shown) on the circuit board 200. Usually the power solder joint on the board. And the power supply in the upper row The terminals 21 are in direct mechanical contact with the free ends of the contact portions 201, 301 of the power terminals 31 of the corresponding row in the lower row such that the power terminals 21, 31 corresponding to the upper and lower rows are electrically connected in parallel. Referring to the seventh figure, the front free end of the contact portion 201 of the power terminal 21 of the upper row is bent downward at a certain angle to form a first bent portion 211, and then extends horizontally forward to form a first extension portion. 212, the front end of the contact portion 301 of the power supply terminal 31 of the lower row corresponding to the upper end of the contact portion 301 is bent upward to form a second bent portion 311 and then horizontally extended to form a second extending portion 312. The first extension portion 212 is in contact with the second extension portion 312 to electrically connect the power terminals 21 and 31 in parallel.

Referring to FIG. 5 to FIG. 6 , the terminal block 1 is provided with a plurality of upper and lower terminal receiving grooves 11 and 12 , and the contact portions 201 and 301 are respectively received in the upper and lower terminal receiving grooves 11 and 12 . The terminal receiving groove bottoms 11 and 12 for accommodating the contact portions 201 and 301 of the power terminals 21 and 31 are provided with holes 111 and 121 corresponding to the upper and lower positions corresponding to the free end region, and the holes 111 and 121 penetrate each other. Referring to the eighth embodiment, the first bending portion 211 is inserted into the hole 111 and the second bending portion 311 is inserted into the hole 121 such that the first extending portion 212 is in contact with the second extending portion 312 to achieve the aforementioned power terminals 21, 31. Electrical parallel.

Referring to the second to fourth embodiments, in the preferred embodiment of the present invention, the terminal block 1 includes a butt tongue 102 on the front side and a body portion 103 on the rear side, and the opposite tongue plate 102 has two opposite sides. On the surface, the terminal receiving grooves 11, 12 are provided on the two surfaces. A shielding plate 104 is disposed in the butting plate 102. The shielding plate 104 is sandwiched between the upper and lower terminal receiving grooves 11 and 12. The shielding plate 104 is provided with a notch 1041 in a region corresponding to the holes 111 and 121 to form the first extending portion. 212 is in contact with the second extension 312. Butt tongue 102 is adjacent The base portion 103 is provided with a step portion 105. The main body portion 103 and the step portion 105 can be made of plastic. The intermediate portions 202 and 302 of the conductive terminals 2 and 3 are embedded in the step portion 105, and the soldering legs 203 and 303 are extended. The body portion 103 is used for soldering to the printed circuit board 200. The grounding member 106 is disposed on two opposite surfaces of the step portion 105. The two grounding portions 1060 of the grounding member 106 are respectively attached to opposite sides of the body portion 103, and the grounding portion 1060 is formed to be elastically pressed against the metal casing 4. Slice 1061. Referring to the third to sixth figures, the terminal block 1 includes an upper insulating portion 107, a lower insulating portion 108, and an interposing portion 109 that is injection-molded by injection molding to the upper and lower insulating portions 107, 108. The upper and lower terminal receiving grooves 11 and 12 are respectively provided in the front region of the upper and lower insulating portions 107 and 108, and the shielding plate 104 is interposed between the upper and lower insulating portions 107 and 108. The upper row of conductive terminals 2 are embedded in the upper insulating portion 107 by integral injection molding, and the lower row of conductive terminals 3 are embedded in the lower insulating portion 108 by integral injection molding, and the upper and lower insulating portions 107 and 108 are stepped. The portion 105 is fixed in the grounding member 106.

Referring to the first to second figures, the metal casing 4 is fixed on the body portion 103 and forms a docking cavity 101 around the butting tongue 102 and the step portion 105. The upper wall of the metal casing 4 is respectively provided at two adjacent front ends. To the elastic piece 41 extending in the docking chamber 101, the inner wall surface of the lower wall is provided with two ribs 42 projecting into the mating cavity 101, and the rib 42 extends in the direction in which the mating connector is inserted and removed. The metal cover 5 is usually fixed to the metal casing 4 by laser welding. The metal cover 5 has a plurality of downwardly extending mounting legs 51 on both sides to fix the electrical connector 100 to the printed circuit board 200.

The first bent portion 211 of the power terminal 21 of the upper row of the present electrical connector 100 is inserted into the hole 111, and is located at the second bent portion of the power terminal 31 of the corresponding row of the lower row. The 311 is inserted into the hole 121, and the hole 111 corresponds to the upper and lower positions of the hole 121 and penetrates the channel to form a channel, so that the first extending portion 212 is in contact with the second extending portion 312 to electrically connect the power terminals in parallel. With this setting, the resonance point of the connector frequency domain parameter is improved to conform to the specifications in the USB Type-C specification, and the improvement of the signal terminals 22, 23, 32, 33 located beside the power terminals 21, 31 is provided. Crosstalk of all differential signal terminals.

In summary, this creation has indeed met the requirements of the new patent, and filed a patent application in accordance with the law. However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention cannot be limited thereby. Equivalent modifications or changes made by those skilled in the art in accordance with the spirit of the present invention, such as changing the shape or size of the holes 111, 121 and changing the notch 1041 on the shielding plate 104 to a closed opening, etc. They are still covered by the attached patent application.

104‧‧‧Shielding board

200‧‧‧ boards

201‧‧‧Contacts

203‧‧‧welding feet

211‧‧‧First bend

212‧‧‧First Extension

301‧‧‧Contacts

303‧‧‧ soldering feet

311‧‧‧The second bend

312‧‧‧Second extension

Claims (10)

An electrical connector can be plugged into a pair of connectors, comprising: a terminal block provided with a plurality of upper and lower rows of conductive terminals; the plurality of conductive terminals being disposed on the terminal block, each The conductive terminals each include a contact portion that is butted to the mating connector, and the plurality of conductive terminals include a power terminal and a differential signal terminal for respectively transmitting and receiving data at a high speed; wherein the power terminal in the upper row is The contact portions of the power terminals of the corresponding row in the lower row are electrically connected in parallel. The electrical connector of claim 1, wherein the electrical connector is for fixing to a circuit board, each of the front ends of the power terminals is a free end of the contact portion, and the rear end is a soldering leg, The soldering leg of the power terminal is configured to be inserted and fixed on the circuit board and form an electrical connection with a power terminal of the circuit board, and the contact portion of the power terminal of the upper and lower rows is free The direct mechanical contact of the ends causes the power terminals of the upper and lower rows to be electrically connected in parallel. The electrical connector of claim 2, wherein the free end of the contact portion of the power terminal of the upper row is bent downward at a certain angle to form a first bent portion, and then extends horizontally forward to form a a first extending portion, the free end of the contact portion of the power terminal of the lower row corresponding to the column is bent upward at a certain angle to form a second bent portion, and then extends horizontally forward to form a second extending portion, the first extending portion The second extensions are in contact with each other such that the power terminals corresponding to the upper and lower rows are electrically connected in parallel. The electrical connector of claim 3, wherein the terminal block is provided with a plurality of upper and lower terminal receiving slots, and the contact portions are respectively received in the upper and lower terminal receiving slots for receiving The bottoms of the upper and lower terminal receiving grooves of the power terminal contact portion are provided with holes corresponding to the upper and lower positions corresponding to the free end region, the holes are penetrated by each other, and the first and second bent portions are inserted. The holes cause the first and second extensions to contact each other. The electrical connector of claim 4, wherein the terminal block comprises a butt tongue on the front side and a body portion on the rear side, the butt tongue has opposite surfaces, the upper and lower terminals The receiving groove is disposed on the two surfaces. The electrical connector of claim 5, wherein a shielding plate is disposed in the butt tongue, the shielding plate is sandwiched between the upper and lower terminal receiving slots, and the shielding plate corresponds to the A gap is formed in the region of the hole to form a passage for the first and second extension portions to contact. The electrical connector of claim 5, wherein the abutting tongue is provided with a step portion adjacent to a root portion of the body portion, and two opposite surfaces of the step portion are respectively provided with a grounding member, the conductive terminal Also included is an intermediate portion embedded in the step portion, the soldering foot extending out of the body portion. The electrical connector of claim 1, wherein the differential signal terminals are paired and disposed adjacent to the power terminal, and the plurality of conductive terminals further includes a ground terminal. The electrical connector of claim 1, wherein the conductive terminal is integrally injection molded on the terminal block. The electrical connector of claim 7, wherein the electrical connector further comprises a metal housing fixed to the body portion and surrounding The abutting tongue and the step portion form a pair of cavities.