CN204632988U - plug connector - Google Patents

Abstract

A kind of pin connector, it comprises insulating body, is coated on the metal shell of insulating body outer surface and two row's terminals, insulating body is provided with the host cavity run through forward, host cavity has two relative sidewalls, two row's terminals comprise and are separately positioned on two sidewalls and the contact site and the pin that extend into host cavity, and host cavity be 180 degree and is symmetrical arranged to allow this pin connector can the socket connector of positive and negative both direction insertion correspondence.Each sidewall of host cavity is preset to the structure arranged for 12 butt, and above-mentioned two row's terminals comprise first row terminal and second row terminal.First row terminal comprises a pair earth terminal, pair of power source terminals and a control terminal, and the contact site of control terminal is between this is to the contact site of power supply terminal, and this lays respectively at this both sides to the contact site of power supply terminal to the contact site of earth terminal.Second row terminal comprises the pair of power source terminals and a pair earth terminal of aliging one by one with corresponding power terminal, earth terminal in first row terminal.Described first row terminal and second row terminal are not all provided with the higher signal terminal of transmission rate.Compared with prior art, the utility model pin connector low cost of manufacture, it meets power delivery function.

Description

plug connector

【Technical field】

The utility model relates to a plug connector, which can be inserted into a corresponding socket connector in both positive and negative directions.

【Background technique】

US Published Patent Application No. 20130095702A1 discloses a bidirectional plug connector. The plug connector has a plug connector with opposite upper and lower surfaces, and a plurality of conductive terminals are arranged on the upper and lower surfaces. The conductive terminals exposed on the upper and lower surfaces are symmetrically spaced apart from each other, and the shape of the connecting head is approximately 180 degrees symmetrical so that it can be inserted into the corresponding socket connector in the forward and reverse directions.

However, a switching circuit needs to be provided inside the socket connector or the electronic device to detect whether the plug connector is inserted forward or backward, so as to start the corresponding follow-up procedure. As the number of terminals in the connector increases, the switching circuit becomes more complicated, so it does not conform to the trend. At the same time, the plug connector is an exposed plug, and there is still a possibility of plugging damage in actual use.

Our company actively develops a new type of plug connector that can be inserted into the socket connector in both directions. At the same time, the two connectors can transmit high-frequency signals. Interfering plug connectors and socket connectors. At the same time, in actual use, the manufacturing cost of the above-mentioned plug and socket connector is very high, which cannot satisfy the use of some low-end products. Therefore, our company actively develops low-cost plug and socket connectors that meet a single function.

【Content of utility model】

The technical problem to be solved by the utility model is to provide a plug connector, which has low manufacturing cost and can satisfy certain single functions.

In order to solve the above technical problems, the utility model can adopt the following technical solutions: a plug connector, which includes an insulating body, a metal shell coated on the outer surface of the insulating body and two rows of terminals, the insulating body is provided with a front A penetrating storage cavity, the storage cavity has two opposite side walls, the two rows of terminals include contact parts and pins that are respectively arranged on the two opposite side walls and extend into the storage cavity, and the storage cavity is 180-degree symmetrical It is set to allow the plug connector to be inserted into the corresponding socket connector in both directions; each side wall of the above-mentioned accommodating cavity is preset to provide a structure for twelve terminals, and the above-mentioned two rows of terminals include the first row terminals and a second row of terminals; the first row of terminals includes a pair of grounding terminals, a pair of power terminals and a control terminal, the contact portion of the control terminal is located between the contact portions of the pair of power terminals, and the pair of power terminals The contact parts of the ground terminals are respectively located on both sides of the contact parts of the pair of power terminals; wherein the second row of terminals includes a pair of power terminals and a pair of ground terminals aligned one by one with the corresponding power terminals and ground terminals in the first row of terminals; Neither the first row of terminals nor the second row of terminals is provided with a signal terminal with a higher transmission rate.

The utility model can adopt another technical solution as follows: a plug connector, which includes an insulating body, a metal shell coated on the outer surface of the insulating body, and two rows of terminals, the insulating body is provided with a forward penetrating receiving cavity, the storage cavity has two opposite side walls, and the two rows of terminals include contact parts and pins respectively arranged on the two opposite side walls and extending into the storage cavity, and the storage cavity is symmetrically arranged at 180 degrees to allow The plug connector can be inserted into the corresponding socket connector in both forward and reverse directions; each side wall of the above-mentioned accommodating cavity is preset to accommodate twelve terminals, and the above-mentioned two rows of terminals include the first row of terminals and the second row of terminals. Two rows of terminals; the first and second rows of terminals are not provided with preset ultra-high-speed signal terminals; the distance between the contact parts of the first and second rows of terminals is kept at a preset position, and the pins are relatively corresponding The contact part is offset to facilitate welding.

Compared with the prior art, the plug connector of the utility model has low manufacturing cost and satisfies the function of power transmission.

【Description of drawings】

FIG. 1 is a perspective view of the plug connector according to the first embodiment of the present invention, wherein the plug connector has been removed from the injection molding shell and the metal shell.

FIG. 2 is a perspective view from another angle of FIG. 1 .

FIG. 3 is a partially exploded perspective view of FIG. 1 .

FIG. 4 is a further exploded perspective view of FIG. 3 .

FIG. 5 is a further exploded perspective view of FIG. 4 .

FIG. 6 is a perspective view of the plug connector with the upper half removed, so as to clearly show the positional relationship between the terminals and the receiving cavity.

Fig. 7 is a perspective view of two rows of terminals in the plug connector.

FIG. 8 is a perspective view from another angle of FIG. 7 .

FIG. 9 is a partially exploded perspective view of the plug connector according to the second embodiment of the present invention.

FIG. 10 is a further exploded perspective view of FIG. 9 .

FIG. 11 is a perspective view from another angle of FIG. 10 .

FIG. 12 is a further exploded perspective view of FIG. 11 .

FIG. 13 is an exploded perspective view of a plug connector according to a third embodiment of the present invention.

FIG. 14 is a perspective view of the upper and lower terminal modules in FIG. 13 .

FIG. 15 is a further exploded perspective view of FIG. 14 .

FIG. 16 is a perspective view of a plug connector according to a fourth embodiment of the present invention.

FIG. 17 is an exploded perspective view of FIG. 16 .

Fig. 18 is a three-dimensional decomposition of Fig. 17 from another angle.

Figure 19 is a further exploded perspective view of Figure 17

Fig. 20 is a cross-sectional view of Fig. 16 along the dashed line A-A.

FIG. 21 is a diagram of the use status of the plug connector and the corresponding socket connector in FIG. 16 .

The following specific embodiments will further illustrate the utility model in conjunction with the above-mentioned accompanying drawings.

【Detailed ways】

Figure 1-8 shows the plug connector 510 of the first embodiment, the rear end of the plug connector is connected with a cable 540, the plug connector 510 of this embodiment is only provided with a few terminals, mainly used to provide power transmission, That is, compared with the standard connector, the size of the connector itself is the same but the number of terminals is reduced. The plug connector 510 includes an insulating body 512, a metal shell 514 coated on the outer surface of the insulating body, and two rows of terminals 520. The insulating body is provided with a receiving cavity 516 that penetrates forward, and the receiving cavity is arranged symmetrically at 180 degrees. In order to allow the plug connector to be inserted into the corresponding socket connector in both forward and reverse directions. The accommodating cavity 516 has two opposite side walls 513, and each side wall 513 is preset to provide a structure for twelve terminals, that is, a standard connector. Two rows of terminals 520 do not conform to standard connector configurations. The first and second rows of terminals 520 are composed of power terminals, grounding terminals, and control terminals (Configuration Channel terminals for controlling signal switching)/special terminals. At the same time, the first and second rows of terminals are arranged diagonally symmetrically relative to the storage cavity 516 , so that the plug connector can be inserted into the corresponding receptacle connector in both forward and reverse directions. The two rows of terminals include contact portions 522 and pins 524 respectively disposed on the two opposite side walls and extending into the receiving cavity 516 . The contact portion 522 of the first row of terminals includes a contact portion 522G of a pair of ground terminals, a contact portion 522P of a pair of power terminals, and a contact portion 522C of a control terminal. The contact portion 522C of the control terminal is located between the pair of power terminals. The contact portions 522P of the pair of power terminals are respectively located on both sides of the contact portion 522C of the control terminal, and the contact portions 522G of the pair of ground terminals are respectively located on both sides of the contact portion 522P of the pair of power terminals, in a G-P-C-P-G arrangement. The second row of terminals includes a pair of power terminals and a pair of ground terminals that are aligned with the corresponding power terminals and ground terminals in the first row of terminals. The contact portion 522 of the second row of terminals includes a contact portion 522G of a pair of ground terminals, a For the contact portion 522P of the power terminal and the contact portion 522V of a special terminal, the contact portion 522V of the special terminal is located in the middle, the contact portion 522P of the pair of power terminals is respectively located on both sides of the contact portion 522V of the special terminal, and the pair of ground terminals The contact parts 522G of the power terminals are respectively located on both sides of the contact parts 522P of the pair of power terminals, arranged in the form of G-P-V-P-G. The special terminals transmit a certain value of current, and it is not necessary to set them when the power terminals meet the requirements. In actual use, special Terminals may be set but not connected to any lines. The contact portions 522P of the power terminals in the first and second rows of terminals (that is, the upper and lower rows of terminals) are aligned vertically one by one, and the power terminals with the contact portions 522P aligned with each other form a power terminal group. The contact portions 522G of the ground terminals in the second row of terminals are aligned vertically one by one, and the ground terminals with the contact portions 522G aligned with each other form a ground terminal group, but the contact portions 522C of the control terminals in the first and second rows of terminals are aligned with each other. The contact portions 522V of the special terminals are offset from each other by a certain distance, and arranged diagonally and symmetrically. As for the pins 524, the pins 524P of each power terminal group are closely arranged side by side with each other, the pins 524G of each ground terminal group are closely arranged side by side, and the pins 524C of the control terminals are closely arranged together. It is located in the middle and has a large distance from the pins of the ground terminal group and the pins of the power terminal group. The pins in the first row are arranged in PP-V-GG; the pins in the second row are arranged in GG-C -PP arrangement; located on the same side (such as the left side shown in Figure 7), the first row is the pin 524G of the two ground terminals, and the second row is the pin 524P of the two power terminals; similarly, the other side The opposite is set. The arrangement of the above-mentioned terminal pins is achieved in the following manner. In the first and second rows of terminals, the contact portions 522G of the two ground terminals are vertically aligned with each other, and the pins 524G of one of the ground terminals are aligned to the other row. The pins of the ground terminals are bent so that the pins 524G in the two rows are closely arranged side by side and contact; the other ground terminals and power terminals in the first and second rows of terminals are bent in this way, so that the above-mentioned close side by side aligned and in contact with each other. The pins of the control terminal 524C and the special terminal 524V are arranged in two rows. The centerline of the terminal contact portion 522 and the centerline of the pins are not on the same straight line, so that it is possible for the pins 524 to be arranged side by side after being bent. Obviously, the plug connector of this embodiment is not provided with signal terminals with lower transmission speed (generally referred to as USB2.0 terminals) and super high-speed signal terminals with higher transmission speed (generally referred to as USB3.0 terminals) , that is, no terminal is provided in the vacant place on the side wall. To sum up, the terminals aligned one by one in the first and second rows of terminals form two groups of grounding terminals and two groups of power terminals, and the two pins of each group of grounding terminals are horizontally aligned side by side. The two pins of the group are aligned horizontally side by side. The pins of adjacent terminal groups are alternately arranged in the first row and the second row.

Both sides of the insulating body 512 are provided with elastic plates 550, the elastic plates are clamped between the outer wall of the insulating body and the metal shell 514, and the elastic plates are provided with contact arms 552 extending into the receiving cavity 516 for contact with The corresponding socket connectors are mated. An H-shaped metal lock piece 560 is installed in the insulating body. The lock piece has a pair of lock heads 562 and pins 564 extending laterally into the receiving cavity. The lock head 562 extends forward from the lock piece. To lock the corresponding socket connector, the pin 564 extends backward from the locking member.

An insulating positioning member 530 is disposed behind the insulating body 512 and has a supporting plate 531 extending backward. The supporting plate has two opposite surfaces 532 . After the terminal 520 is installed into the insulating body, the positioning member is inserted and fixed on the rear end of the insulating body, and the terminal pins 524P, 524G, 524C, 524V pass through the positioning member 530 and are placed on the surface 532 of the support plate 531 . The pin 564 of the locking member also passes through the pin hole of the positioning member 530 . The aforementioned two locking heads 562 are located on the same plane, while the pins 564 are offset from each other by a certain distance in the vertical direction, so as to be installed on the front and back surfaces 532 of the positioning member respectively.

A cable 540 is arranged behind the positioning member 530, which includes four power core wires 542, two ground core wires 544 and one control core wire 546, and the four power core wires 542 are connected to the first and second core wires one by one. The pins 524P of the two pairs of power terminals in the second row of terminals, each ground core wire is connected to the pin 524G of a pair of ground terminals arranged side by side, and the control core wire 546 is connected to the pin 524C of the control terminal. Briefly, there are five pins 524 on each surface 532 of the positioning member, and the five pins in the lateral direction include a pair of pins 524G closely spaced side by side, a pair of pins 524P closely spaced side by side, and a pin 524P closely spaced side by side. pin 524C; corresponding to the cable, two power supply core wires 542 are welded to a pair of pins 524P, one ground core wire 544 is welded to a pair of pins 524G, one control core wire 546 is welded to a pin 524C, and of course the ground core wire 544 is welded to a pair of pins 524C. Pin 524V is idle. Through the offset of some terminal pins 524 in the vertical direction, it is very simple to connect them with the core wires in the corresponding cables. Adjacent to each other, increase the distance between core wires of different categories.

It is clear that the terminals in this embodiment only include power terminals, ground terminals and control terminals, the internal circuit board is also omitted, and the insulating positioning member 530 directly supports the pins of the terminals to be directly welded together with the core wires of the cable. Positioner 530 also acts as a cable organizer.

9-12 show the plug connector 500a of the second embodiment. The structure of the plug connector is roughly the same as that of the first embodiment, mainly due to the difference in some details. The same structure adopts the same reference numerals. In this embodiment, the terminals 520 mainly include power terminals, grounding terminals, control terminals and signal terminals installed on the insulating body 512, and there are no ultra-high-speed signal terminals (the signal terminals refer to terminals used to transmit data). Compared with the first embodiment, the second row of terminals is further provided with a pair of signal terminals 520D with a lower transmission rate between the power supply terminal and the special terminal. An internal circuit board 590 is horizontally located behind the positioning member 530, and it includes a plurality of front circuit sheets 591 at the front end and a plurality of rear circuit sheets 592 at the rear end. The front circuit sheets 591 are welded with the pins 524 of the terminals, and the rear The wire sheet 592 is welded to the core wire 545 of the cable; the rear wire sheet is a simplified electrical sheet electrically connected to the front wire sheet to simplify the connection with the cable. The feature of this embodiment is that, the electric sheet transmitted by the power supply of the internal circuit board 590 is simplified as a power sheet 592P, and the grounding sheet is also simplified as a grounding sheet 592G, and the aforementioned two electric sheets are arranged inside the first surface of the circuit board. A pair of terminals for transmitting low-speed signals still corresponds to a pair of signal rear circuit boards 592D, and a control terminal still corresponds to a rear circuit board 592C, all of which are arranged on the second surface of the internal circuit board. On the other hand, the front circuit tab 591 is still aligned with the corresponding power and ground terminals 520 in the front-rear direction without any deviation. It can be understood that, in this embodiment, the rear circuit boards for power transmission and grounding are located on the same side of the internal circuit board, and the rear circuit boards for low-speed signals and control signals are located on the other side of the internal circuit board.

The metal shell 514 surrounds the insulating body 512, and a pair of metal shells 581 and 582 are fixed to each other to clamp and fix the assembled insulating body 512, metal shell 514 and cables together to form a sub-assembly. Then, the inner injection molding shell 588 surrounds the above-mentioned sub-assembly, and the outer injection molding shell 589 surrounds the inner injection molding shell 588, and at the same time exposes the front-end docking port and the rear-end cable to the outside. In this embodiment, the positioning member 530 further includes a transverse rib 531 received in the groove 5821 of the metal shells 581 , 582 . The metal shell 514 is provided with a rear fixing part 5141 , and one of the metal shells is provided with a front fixing part 5811 , and the front fixing part 5811 closely surrounds the lateral two ends of the rear fixing part 5141 and is fixed to each other by welding. The metal shells 581, 582 are provided with a pair of fixing plates 5812, 5822, and the fixing plates are welded on the upper and lower side walls of the rear fixing part.

13-15 show a plug connector 300 of a third embodiment. Similar to the previous second embodiment, the plug connector 300 of this embodiment only includes the terminals 310 for transmitting low-speed signals, grounding and power supply, the internal circuit board is omitted, and the core wires of the cables are directly connected to the pins of the terminals for cut costs. The plug connector includes an insulating body 320 and a metal shell 322 surrounding the insulating body, and a metal locking member 326 is assembled in the insulating body. The elastic plate 328 is mounted on the outside of the insulating body, and includes elastic contact arms extending into the receiving chamber. A pair of insulating sheets 330 cover the elastic plate 328 for isolating the elastic plate and the metal shell from each other. Different from the second embodiment, the first terminal module 340 includes a first insulator 350 and five first terminals 310 injection-molded on the first insulator, and the second terminal module 342 includes a second insulator 360 and injection-molded on the second Seven second terminals 310 of the insulator. A general standard connector has twelve terminals in each row. In this embodiment, many terminals are omitted from the standard connector, and only the above-mentioned five and seven terminals are reserved. The first row of terminals includes a pair of grounding terminals, a pair of power terminals and a control terminal, and the second row of terminals includes a pair of grounding terminals, a pair of power terminals, a pair of signal terminals and a special terminal; the first and second There are no preset ultra-high-speed signal terminals on the row of terminals. Each terminal 310 includes a contact portion 316 , pins 312 and an intermediate offset portion 314 , the intermediate offset portion connects the contact portion and the pins and is fixed in the insulator, so that the omitted terminal space can be fully utilized. The terminal contact part 316 still retains the style of the original standard connector, and the pins are offset to facilitate welding; that is, the distance between the contact parts of the first and second rows of terminals is kept at the preset position, and The pins are offset relative to the corresponding contact portion to facilitate soldering. Each terminal is provided with a barb 318 in front of the middle offset portion 314, and the barb is used to fix the terminal 310 in the terminal groove.

16-21 shows a plug connector 200 of the fourth embodiment. The plug connector 200 includes an insulating body 202 and a metal shell 204 surrounding the insulating body. The insulating body 202 includes a base 206 and a body extending from the middle of the base. 208 , so that the base portion forms side wing portions 210 on both sides of the main body portion, and the side wing portions 210 are provided with through holes 212 . The structure of the body part 208 is similar to the body of the previous embodiment and forms a receiving cavity 214. Two rows of terminals 216 are arranged on both sides of the receiving cavity. The receiving cavity is symmetrically arranged at 180 degrees so that the plug connector can be inserted into the corresponding plug connector in both directions. socket connector. A pair of elastic plates 218 for shielding effect are arranged on the body portion 208 and have elastic contact arms extending into the receiving chamber, and a pair of insulating sheets 221 are arranged on the elastic plates to isolate the elastic plates from the metal housing 204 . It can be understood that, the same as the first embodiment, the plug connector 200 includes a locking member for locking with the shielding plate of the corresponding socket connector. The metal shell 204 includes a metal main body 220 covered on the outer surface of the main body and a pair of metal side wings 222. The metal side wings 222 cover the side wings 210 of the insulating body. In the butting direction, the through holes 212, 224 are mutually Align for screw insertion. The metal shell 220 is provided with a mounting portion 225 behind the metal main body, and the mounting portion is attached to the base of the insulating body. Referring to Fig. 21, the portable computer includes a main frame and a detachable display, the main frame is provided with a first rotating assembly 236 for the display to rotate relative to the main frame at one of its long sides, and the display is also provided with a second rotating assembly 238, which is connected by a plug The connector 200 is mounted on the circuit board 235 inside the first rotating component 236, and a pair of elastic components are arranged behind the circuit board. In the mating direction, the plug connector floats through the pair of elastic components 240. The second rotating assembly 238 is provided with a receptacle connector 244 mated with the plug connector 200 . The first rotating assembly 236 also includes a pair of locking parts 242 that can be retracted in the lateral direction of the long sides. When the display is installed on the host, the locking parts 242 lock the second rotating assembly 238 of the display. An improved structure of the metal shell is that a notch is provided on the surface of the metal shell for buckling with the elastic arm of the socket connector.

The above-mentioned embodiments are preferred implementation modes of the present utility model. Rather than all implementation modes, any equivalent changes to the technical solution of the utility model adopted by persons of ordinary skill in the art by reading the description of the utility model are covered by the claims of the utility model.

Claims (10)

1. A plug connector, which includes an insulating body, a metal shell coated on the outer surface of the insulating body and two rows of terminals, the insulating body is provided with a receiving chamber that penetrates forward, and the receiving chamber has two opposite sides The two rows of terminals include contact parts and pins that are respectively arranged on the above two opposite side walls and extend into the receiving cavity. The receiving cavity is symmetrically arranged at 180 degrees to allow the plug connector to be used in both positive and negative directions. Insert the corresponding socket connector in the direction; it is characterized in that: each side wall of the above-mentioned receiving cavity is preset to provide a structure for twelve terminals, and the above-mentioned two rows of terminals include the first row of terminals and the second row of terminals; The first row of terminals includes a pair of ground terminals, a pair of power terminals and a control terminal, the contact portion of the control terminal is located between the contact portions of the pair of power terminals, and the contact portions of the pair of ground terminals are respectively located in the pair Both sides of the contact portion of the power terminal; wherein the second row of terminals includes a pair of power terminals and a pair of ground terminals that are aligned with the corresponding power terminals and ground terminals in the first row of terminals; the first row of terminals and the second row of terminals None of the row terminals is provided with a signal terminal with a higher transmission rate. 2. The plug connector according to claim 1, wherein the second row of terminals includes a special terminal located between a pair of power terminals, and the contact portion of the control terminal of the first row of terminals is in contact with the second row of terminals. The contact parts of the special terminals of the second row of terminals are offset from each other by a certain distance; the second row of terminals is provided with a pair of signal terminals with a lower transmission rate between the power supply terminal and the special terminal. 3. The plug connector according to claim 1 or 2, characterized in that: the terminals in the first and second rows of terminals that are aligned with each other form two groups of grounding terminals and two groups of power terminals, and each The two pins of each ground terminal group are horizontally aligned side by side, and the two pins of each power terminal group are horizontally aligned side by side. 4. The plug connector as claimed in claim 3, wherein two pins of each ground terminal set are in contact with each other. 5. The plug connector according to claim 3, wherein the pins of the adjacent terminal groups are alternately arranged in a first row and a second row. 6. The plug connector according to claim 4, characterized in that: the plug connector includes a cable directly connected to the two rows of terminal pins, and the cable includes one-to-one correspondingly connected to the power terminal pins. The four power supply core wires and the two ground core wires connected to the ground terminal group are in one-to-one correspondence. 7. The plug connector according to claim 3, characterized in that: the plug connector includes an internal circuit board and cables arranged behind the insulating body, and the internal circuit board is provided with pins connected to the two rows of terminals One-to-one correspondence of the front circuit sheet and the simplified rear circuit sheet electrically connected to the front circuit sheet; the internal circuit board defines a first surface and a second surface opposite to each other, and the rear circuit sheet is simplified to be arranged on A ground circuit electric sheet and a power supply circuit electric sheet on the first surface and two low-speed signal circuit electric sheets and control terminal circuit electric sheets are arranged on the second surface. 8. The plug connector according to claim 1, characterized in that: the plug connector includes a cable directly or by setting an internal circuit board to connect the two rows of terminal pins, and the cable is covered The metal shell on the outside; the metal shell is provided with a rear fixing part, and the metal shell is provided with a front fixing part, and the front fixing part closely surrounds the lateral two ends of the rear fixing part, and is fixed to each other by welding. 9. A plug connector, which includes an insulating body, a metal shell coated on the outer surface of the insulating body, and two rows of terminals, the insulating body is provided with a receiving cavity that penetrates forward, and the receiving cavity has two opposite sides The two rows of terminals include contact parts and pins that are respectively arranged on the above two opposite side walls and extend into the receiving cavity. The receiving cavity is symmetrically arranged at 180 degrees to allow the plug connector to be used in both positive and negative directions. Insert the corresponding socket connector in the direction; it is characterized in that: each side wall of the above-mentioned receiving cavity is preset to provide a structure for twelve terminals, and the above-mentioned two rows of terminals include the first row of terminals and the second row of terminals; The first and second rows of terminals are not provided with preset ultra-high-speed signal terminals; the distance between the contact parts of the first and second rows of terminals is kept at a preset position, and the pins are offset to a certain extent relative to the corresponding contact parts. Move to facilitate welding. 10. The plug connector according to claim 9, wherein the first row of terminals includes a pair of grounding terminals, a pair of power terminals and a control terminal; the second row of terminals includes A pair of power terminals and a pair of ground terminals that correspond to the power terminals and ground terminals are aligned one by one.