TWI618321B - Plug electrical connector - Google Patents

Abstract

A plug connector includes a plug connector and a terminal received in the plug connector; the plug connector is provided with a forwardly extending receiving cavity and a cable placement platform at a rear end thereof, the receiving cavity having an opposite first inner portion a wall surface and a second inner wall surface, the cable placement platform has an opposite first placement surface and a second placement surface; the terminal includes two rows of contact portions arranged on two sides of the receiving cavity and a connection extending to the cable placement platform a foot; the pins are arranged in a row and disposed on the first placement surface, and the second placement surface does not extend the pin. The welding between the plug connector of the present invention and the cable is more convenient, thereby reducing the manufacturing cost.

Description

Plug connector

The present invention relates to a plug electrical connector for connection to a cable.

On August 11, 2014, the USB Association announced a new type of electrical connector, the plug connector can be inserted into the corresponding socket connector in both directions, the socket connector can transmit USB2.0 and USB3.1 signals, this The connector is named USB Type C connector. According to the news reported by the industry, the electrical connector has great potential for development, and each connector manufacturer cooperates with the system manufacturer to actively develop it. The USB Type C plug connector connected to the cable has a full-pin structure for transmitting USB 3.0 or 3.1, and also has a missing pin structure for transmitting USB 2.0. The missing stitch structure is to draw four pairs of differential pair terminals in the full-pin structure. With or without settings, USB 2.0 Type C plug connectors generally retain 12 or 11 terminals. The number of terminals is large and needs to be transferred to the cable through the sub-board, which is relatively high cost.

Therefore, there is a need to develop a new type of plug connector.

The object to be achieved by the present invention is to provide a plug connector in which the connection between the plug connector and the cable is simple and the cost is low.

In order to achieve the above object, the present invention provides the following technical solution: a plug connector including a plug connector and a terminal housed in the plug connector; the plug connector is provided with a receiving cavity penetrating forward And a cable placement platform at a rear end thereof, the receiving cavity has an opposite first inner wall surface and a second inner wall surface, the cable placement platform has an opposite first placement surface and a second placement surface; Two rows of contact portions arranged on two sides of the receiving cavity and pins extending to the cable placement platform; the pins are arranged in a row and disposed on the first placement surface, and the second placement surface is not extended with the connection foot.

Compared with the prior art, the present invention has the following effects: the soldering between the plug connector of the plug connector and the cable is more convenient, thereby reducing the manufacturing cost.

100, 200, 300‧‧‧ plug connectors

10‧‧‧ Plug connector

11‧‧‧ containment chamber

111‧‧‧First inner wall

112‧‧‧Second inner wall

12‧‧‧Cable placement platform

120‧‧‧First placement surface

121‧‧‧Second placement surface

123‧‧‧ Groove

1231‧‧‧ bottom

124‧‧‧ ribs

125‧‧‧slit

20‧‧‧ Cable

21‧‧‧core

21P‧‧‧Power cord

21G‧‧‧Grounding wire

21D‧‧‧ signal line

21C‧‧‧Detection line

31‧‧‧Upper casing

32‧‧‧ Lower casing

33‧‧‧Insulated casing

40‧‧‧ terminals

411‧‧‧Contacts

412‧‧‧ middle part

413‧‧‧ tail

415‧‧‧ First Bridge

416‧‧‧Second Bridge

50‧‧‧Locks

51‧‧‧Lock arm

511‧‧‧Lock head

52‧‧‧Connecting feet

G1, G2‧‧‧ grounding terminal

P1, P2‧‧‧ power terminals

CC‧‧‧Detection terminal

D‧‧‧ signal terminal

V‧‧‧Vconn detection terminal

TD1‧‧‧ signal pin

TP1 (T)‧‧‧ power pin

TG1(T)‧‧‧ Grounding pin

TCC1‧‧‧Detection pin

TP1‧‧‧First power tail

TP2‧‧‧second power tail

TG1‧‧‧First ground tail

TG2‧‧‧Second ground tail

1 is a perspective view of a plug connector according to a first embodiment of the present invention; a second view is a partially exploded perspective view; a third view is a perspective view of the plug connector in the second figure; The perspective view is a perspective view of the terminal and the lock member in the plug connector of the second figure; the sixth view is a perspective view of the other angle of the fifth figure; and the seventh figure is the plug connector of the second embodiment of the present invention. The perspective view, wherein the upper and lower outer casings and the insulating outer casing are removed; the eighth figure is a perspective view of the terminal and the locking member in the plug connector of the seventh figure; the ninth is a perspective view of the plug connector in the seventh figure; 9 is a perspective view of another angle; FIG. 11 is a perspective view of a plug connector according to a third embodiment of the present invention, in which both the upper and lower outer casings and the insulating outer casing are removed; and twelfth is another angle of the eleventh Figure 13 is a perspective view of the terminal and the locking member of the plug connector of the eleventh figure; and Figure 14 is a perspective view of another angle of the thirteenth figure.

The invention will be further illustrated by the following detailed description in conjunction with the accompanying drawings.

As shown in the first to sixth figures, the present invention discloses a Type C plug connector 100 having a plug connector 10 at the front end and a cable 20 connected to the rear end. The plug connector 10 is provided with a forward through hole. The receiving cavity 11 and the two rows of terminals 40 received in the plug connector, the receiving cavity 11 has two opposite first inner wall faces 111 and second inner wall faces 112, and the two rows of terminals arranged on the first and second inner wall faces are in contact with each other. The portions 411 are arranged to be symmetrically distributed diagonally, and thus, the plug connector 100 can be inserted into the corresponding socket connector in both the forward and reverse directions. As shown in the second figure, the rear end of the plug connector 10 is provided with a cable placement platform 12, and the pins of the two rows of terminals are exposed on the cable laying platform 12, and the core wire 21 of the cable 20 is soldered to the pins. The outer casing 31 and the lower outer casing 32 cover the outer side of the cable placement platform 12 for covering the core wire and the pin. An insulating outer casing 33 is further wrapped around the plug connector 10 and the core wire 21 to form a complete plug connector 100.

Referring to the third and fourth figures, referring to the fifth and sixth figures, the arrangement of the terminals 40 conforms to the arrangement of the USB Type C 2.0, and includes two rows of terminals including a pair in the first row. a grounding terminal G1, a pair of power terminals P1, a detecting terminal CC and a pair of USB2.0 signal terminals D (ie, D+, D-); and a pair of grounding terminals G2 and a pair of power terminals P2 in the second row and A Vconn detects the terminal V. The USB2.0 signal terminal D and the detection terminal CC are mutually independent terminals, that is, each terminal has a contact portion 411, a tail portion 413, and an intermediate portion 412 connecting the contact portion and the pin, wherein the tail portion 413 is directly exposed to the cable. The pins TD1, TCC1 are formed by the platform. Most of the grounding terminal and the power supply terminal have other changes in addition to the contact portion, the intermediate portion and the tail portion, which will be specifically described below. The two pairs of power terminals P1 and P2 have two pairs of contact portions (ie, P1 and P2) which are butted with the mating socket connector, and the tail portion is simplified, and the first power contact portion of the first inner wall surface 111 is located ( That is, the P1 label) A first power supply tail portion TP1 is respectively extended at a rear end thereof, and a second power supply tail portion TP2 is connected to the second power supply contact portion (ie, a P2 number) of the second inner wall surface 112, and a second power supply tail portion TP2 is respectively connected to the rear end thereof. A first bridge portion 415 is also connected between the power supply tails TP2. One of the first power supply tails TP1 is exposed on the first placement surface 120 to form a power pin TP1 (T).

The first ground contact portion (ie, the G1 number) extends a first ground tail portion TG1 at a rear end thereof, and the second ground contact portion (ie, a G2 numeral portion) respectively extends a second ground tail portion TG2 at a rear end thereof. A second bridge portion 416 is also connected between the two second ground tails TG2. The first and second ground tails are stacked on each other to abut against each other to form an electrical connection. One of the first ground tails TG1 is exposed on the first placement surface 120 to form a ground pin TG1 (T). Other power supply tails and ground tails are embedded in the cable placement platform 12. A portion of the power supply tail and the ground tail is exposed to the cable placement platform 12 to become a pin, and other portions are embedded in the cable placement platform 12.

The plug connector 100 further includes a locking member 50, the locking member includes a pair of locking arms 51 extending to the receiving cavity and at least one connecting leg 52. The end of the locking arm 51 has a locking head protruding from each other 511. The first ground tail portion TG1 and the connecting leg 52 are arranged side by side and abut each other, and the second tail portion TG2 and the connecting leg 52 are stacked on each other to abut each other while the first ground tail or the second ground tail portion There are also stacks that stand against each other. One of the connecting legs 52 is arranged side by side with the grounding pin TG1 (T) and abuts each other, and the connecting leg can also be a pin instead of the ground tail.

Referring to the third and fourth figures, the positional relationship of the terminal 40 in the plug connector 10 is described below. The cable placement platform 12 has a first first placement surface 120 and a second placement surface 121, and the first inner wall surface 111 and the first surface. The placement faces 120 are on the same side. It can be understood that the terminal includes two rows of contact portions 411 arranged on two sides of the receiving cavity 11 and pins extending to the cable placement platform, the pins are arranged in a row and disposed on the first placement surface 120. The second placement surface 121 does not extend the pin. The first placement surface 120 is provided with a groove 123 spaced apart by a plurality of ribs 124, the groove 123 penetrating rearward, and the grooves 123 are used just for The core wire 21 is received, and the rib restricts the lateral movement of the core wire 21. The pin is substantially flush with the bottom surface 1231 of the groove 123 to facilitate the placement of the core wire 21. The groove corresponding to the power supply pin TP1 (T) is recessed deeper than the other grooves, mainly for facilitating the placement of a large-sized power line.

Specifically, the contact portion 411 of the terminal 40 includes a pair of signal contact portions on the first inner wall surface 111 of the receiving cavity, a pair of first power contact portions, a pair of first ground contact portions, and a detecting contact portion, and A pair of second power contact portions of the second inner wall surface 112 of the receiving cavity and a pair of second ground contact portions. The first power contact portions are in alignment with the second power source, and the first ground contact portion and the second ground contact portion are aligned with each other. The terminal pin for connecting the cable includes a power pin TP1 (T) extending from the first and second power contact portions, and is extended by the first and second ground contacts and simplified A grounding pin TG1(T), a detecting pin TCC1 extending from the detecting contact portion, and a signal pin extending one by one from the signal contact portion. The power pin TP1 (T) and the ground pin TG1 (T) are respectively located at two sides of the detecting pin TCC1, and the pair of signal pins TD1 are adjacent to each other and located at the detecting pin TCC1 and the power pin TP1 ( Between T). Referring to the second figure, the core 21 of the cable 20 includes a power line 21P, a ground line 21G, a pair of signal lines 21D, and a CC detection line 21C. The core lines are connected to the pins one by one. It can be seen that, in this embodiment, the core 21 of the cable is located on one side of the cable placement platform 12, and when the core wire is soldered to the pin, only one side can be welded, which greatly reduces the manufacturing process. At the same time, the USB2.0 signal contact portion and the detecting contact portion are located on the same side of the receiving cavity, and the corresponding pins are also located on the same side of the cable placing platform and on the same side as the front USB2.0 signal contact portion, so that the terminals are in the same Formed on the strip. Referring to FIG. 5, the width of the pair of signal pins TD1 and the detection pin TCC1 are substantially the same, the width of the power pin TP1 (T) is larger than the signal pin TD1, and the ground pin is substantially the same as the signal pin. Or slightly larger than. Referring to the third figure, the connecting legs 52 of the locking member 50 are arranged side by side with the grounding pins and exposed on the bottom surface of the groove for jointly welding the core wires, which can increase the welding area.

The plug connector 10 is specifically manufactured as follows. The plug connector 10 includes an insulative housing, a first terminal module, and a second terminal module. The receiving cavity is formed in the insulative housing, and the two rows of terminals are respectively formed on the terminal module. Then, the first and second terminal modules are clamped and then assembled into the insulating body.

The plug connector 200 of the second embodiment is disclosed in the seventh to tenth embodiments, and its structure is substantially the same as that of the previous embodiment, and the differences are mainly described, wherein the same components are given the same reference numerals. The first placement surface 120 of the cable placement platform 12 has only one power pin TP1 (T), one ground pin TG1 (T) and one detection pin TCC1 exposed, and the second placement surface 121 has no pins. The plug connector 200 of the present embodiment is mainly suitable for transmitting a large current, and a pair of signal terminals D for transmitting USB 2.0 are missing from the previous embodiment. It can be seen from the terminals shown in the eighth figure that a pair of signal terminals D have only contact portions to form vacant terminals, and the detection terminals CC have independent and complete structures. The power terminals and pins are the same as in the previous embodiment. The tail portions of the terminals are simplified into a pin structure exposed on the first placement surface 120.

The eleventh to fourteenth drawings disclose the plug connector 300 of the third embodiment, the structure of which is substantially the same as that of the first embodiment, and the differences are mainly described, wherein the same elements are given the same reference numerals. The first placement surface 120 of the cable placement platform exposes only one power pin TP1 (T), a pair of signal pins TD1, a detection pin TCC1, a ground pin TG1 (T), and the second placement surface 121 is exposed. There is a second power/ground tail TG2/TP2, but the tails are only bare on the second placement surface and there is no soldering of the cable or the resistor pin, and cannot be used as a pin for connecting the cable, the lock member The connecting leg 52 of the 50 does not abut the ground tail, which is electrically connected by abutting the second bridge 416 between the ground pins. The second placement surface 121 is provided with a slit 125 adjacent to the tail end of the power supply and the ground tail portion. The slits facilitate solder injection and heat-weld the power/ground terminal of the first and second terminals inside the insulating body. Thereby, the electrical connection of the power/ground terminals in the first and second terminals is ensured. The grounding and power supply terminals of the embodiment are bare tails. Compared with the first embodiment, the slits 125 are conveniently arranged, and other samples can be shared. The terminal strips have shallow slots 126 corresponding to the tails of the terminals, but the shallow slots are not sufficient to accommodate the core of the cable. Of course, the tails of other terminals can also be exposed, but none of them form a pin.

In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited thereto. Equivalent modifications or variations made by those skilled in the art in the spirit of the present invention are still included in the scope of the appended claims.

Claims (9)

A plug connector includes a plug connector and a terminal received in the plug connector; the plug connector is provided with a forwardly extending receiving cavity and a cable placement platform at a rear end thereof, the receiving cavity having an opposite first inner portion a wall surface and a second inner wall surface, the cable placement platform has an opposite first placement surface and a second placement surface; the terminal includes two rows of contact portions arranged on two sides of the receiving cavity and a connection extending to the cable placement platform The pin includes a power pin, a detecting pin and a ground pin, wherein the pins are arranged in a row and disposed on the first placement surface, and the second placement surface is not extended The pin connector includes a latching member, the latching member includes a pair of latching arms extending to the receiving cavity and at least one connecting leg, wherein the connecting leg is arranged side by side with the grounding pin And they are against each other. The plug connector of claim 1, wherein the power pin and the ground pin are respectively located at two sides of the detecting pin. The plug connector of claim 1, wherein the contact portion of the terminal comprises a pair of first power contact portions on the first inner wall surface of the receiving cavity, a pair of first ground contact portions, and a detecting a contact portion, and a pair of second power contact portions on the second inner wall surface of the receiving cavity and a pair of second ground contact portions; the power pin extends from the first and second power source contacts and is simplified. The grounding pin extends from the first and second grounding contacts and is simplified, the detecting pin extends from the detecting contact portion; in a vertical direction, the first power contact portion The second power contact portions are aligned with each other, and the first ground contact portion and the second ground contact portion are aligned with each other. The plug connector of claim 3, wherein the contact portion of the terminal further comprises a pair of signal contacts on a first inner wall surface of the receiving cavity; the pin further comprising the pair of signals a pair of signal pins extending from the contact portion; the pair of signal pins are adjacent to each other and located between the detecting pin and the ground pin. The plug connector of claim 1, wherein the first placement surface and the first inner wall surface of the receiving cavity are located on the same side of the plug connector. The plug connector of claim 3, wherein the plug connector is connected with a cable, the cable includes only one power line, one ground line and one detection line, the power line, The grounding wire and the detecting wire are soldered to the power pin, the ground pin and the detecting pin one by one. The plug connector of claim 4, wherein the plug connector is connected with a cable, the cable includes only a pair of signal lines, a power line, a ground line and a detection line. The signal line, the power line, the ground line and the detection line are soldered to the signal pin, the power pin, the ground pin and the detecting pin. The plug connector of claim 1, wherein the second placement surface is exposed with a tail portion of the terminal, and the tail portions are not connected to the cable or other electronic components to be in an idle state. The plug connector of claim 1, wherein the first placement surface is provided with a groove, and the pins are located in the groove; the connecting leg of the locking component is exposed together with the grounding terminal. In the groove.