CN202308394U - Plug electric connector - Google Patents

Abstract

A plug electrical connector, comprising a first insulating block and a plurality of first conductive terminals arranged on the first insulating block; the first insulating block is provided with a main body and a tongue extending forward from the main body, the The tongue part is provided with a first installation surface, a second installation surface located on the rear side of the first installation surface, and mating surfaces located on both sides of the first installation surface and the second installation surface; the first conductive terminal includes a The first contact portion on the first mounting surface and in the shape of a flat plate, the first welding portion extending from the first insulating block, and the first connecting portion connecting the first contact portion and the first welding portion, the first contact portion is provided with A first upper surface, the first upper surface is higher than the first installation surface, the first upper surface is equal to or higher than the second installation surface. With this arrangement, when the electrical plug connector is docked with the electrical receptacle connector, it can prevent the elastic terminal on the electrical receptacle connector from being pushed away by the second mounting surface and unable to normally interfere with the first contact portion, resulting in disconnection of the circuit. .

Description

plug electrical connector

【Technical field】

The utility model relates to a plug electric connector, in particular to a plug electric connector which can be installed on a circuit board.

【Background technique】

Please refer to the Chinese Invention Patent Announcement No. CN101562290 published on October 21, 2009 for the prior art related to the utility model. Connector, the socket electrical connector is provided with a number of socket terminals with elastic contact parts; the plug electrical connector includes a tongue plate and a number of conductive terminals installed on the tongue plate, and the conductive terminals include The first terminal is provided with a flat first contact portion for abutting with the elastic contact portion of the socket terminal. The tongue plate includes a first installation surface for installing the first contact part, a second installation surface located behind the first installation surface and higher than the first installation surface, located on both sides of the first installation surface and higher than the first installation surface. The mating surface of the installation surface and the stepped portion connecting the first installation surface and the second installation surface. The second mounting surface is at the same height as the mating surface, and the surface of the first contact portion is flush with the first mounting surface. When the tongue plate of the plug electrical connector is inserted into the socket electrical connector, the second installation surface is easy to contact with the free front end of the elastic contact portion of the socket terminal, and pushes up the elastic contact portion, causing the elastic contact portion to Deviating from the first contact portion results in poor electrical contact.

Therefore, it is necessary to modify the existing electrical plug connectors to overcome the above defects.

【Content of utility model】

The purpose of the utility model is to provide a plug electrical connector capable of good electrical contact with the docking socket electrical connector.

In order to achieve the above purpose, the utility model adopts the following technical solutions: a plug electrical connector, including a first insulating block and a number of conductive terminals arranged on the first insulating block; the first insulating block is provided with a main body and a self- The tongue plate portion extending forward from the main body, the tongue plate portion is provided with a first installation surface, a second installation surface located on the rear side of the first installation surface, and located on both sides of the first installation surface and the second installation surface for The mating surface that abuts and cooperates with the docking socket electrical connector; the conductive terminal includes a first conductive terminal, and the first conductive terminal includes a first contact portion that is arranged on the first mounting surface and is in the shape of a plate, and extends out of the second The first welding part of an insulating block and the first connecting part connecting the first contact part and the first welding part, the first contact part is provided with a first upper surface, and the first upper surface is higher than the first mounting surface , the first upper surface is equal to or higher than the second installation surface.

In a preferred embodiment, the mating surface is equal to or higher than the second mounting surface.

In a preferred embodiment, the second installation surface is higher than the first installation surface.

In a preferred embodiment, the first connecting portion is provided with a front end portion and another portion wider than the front end portion, and the front end portion is provided on the second mounting surface and exposed in a flat plate shape.

In a preferred implementation manner, the first conductive terminal complies with the USB2.0 protocol.

In a preferred embodiment, the conductive terminal further includes a second conductive terminal, and the terminal group composed of the first conductive terminal and the second conductive terminal conforms to the USB3.0 protocol; the second conductive terminal includes a second holding part , the elastic second contact part extending forward from the front end of the second holding part in a circular arc shape, the second connecting part extending backward from the rear end of the second holding part, and the second welding part further extending from the second connecting part The tongue part is provided with a plurality of first terminal receiving grooves recessed from the second installation surface, and the second contact part is accommodated in the first terminal receiving grooves and protrudes out of the second installation surface.

In a preferred embodiment, the second conductive terminal includes a ground terminal located in the middle, the second welding portion of the ground terminal is divided into two parts and a first opening is formed in the middle.

In a preferred embodiment, the first soldering portion and the second soldering portion are arranged in a row, the first terminal includes a pair of signal terminals, and the first soldering portion of the pair of signal terminals is located at the inside the first opening of the second soldering portion of the ground terminal.

In a preferred embodiment, the electrical plug connector further includes a second insulating block, the first insulating block is provided with a first receiving space behind the first terminal receiving groove, and the second insulating block is accommodated in In the first receiving space, the second conductive terminal is fixed on the second insulating block.

In a preferred embodiment, the electrical plug connector further includes a shielding shell covering the tongue portion, and a plurality of first protrusions that interfere with the shielding shell are provided on both sides of the tongue portion. piece.

Compared with the prior art, the first upper surface of the plug electrical connector of the present invention is equal to or higher than the second installation surface, so that the end of the elastic terminal in the socket electrical connector can be prevented from being installed by the second installation surface. The elastic terminal and the first contact part are disconnected due to the opening of the surface, and the structure is simple, which is beneficial to the benign contact between the conductive terminals.

【Description of drawings】

FIG. 1 is a three-dimensional assembled view of the plug electrical connector of the present invention.

FIG. 2 is a partially exploded perspective view of the electrical plug connector of the present invention.

FIG. 3 is a partial perspective exploded view of FIG. 2 after further decomposition.

FIG. 4 is a partially exploded perspective view from another angle of FIG. 3 .

Fig. 5 is a three-dimensional exploded view of the electrical plug connector of the present invention.

FIG. 6 is an exploded perspective view of FIG. 5 from another angle.

FIG. 7 is a partially exploded perspective view of another embodiment of the electrical plug connector of the present invention.

【Detailed ways】

Please refer to FIG. 1 to FIG. 6, the electrical plug connector 100 is provided with a socket 110, including an insulating body 1, a number of conductive terminals 2 held on the insulating body 1 and a shielding shell covering the insulating body 1. Body 3. The insulating body 1 includes a first insulating block 4 and a second insulating block 5 fixed to each other. The first insulating block 4 is provided with a base 41 , a tongue portion 42 extending forward from the front end of the base 41 , and a fixing portion 43 extending backward from the rear end of the base 41 and fixed to a circuit board (not shown). The base 41 is provided with a first receiving space 411 for receiving the second insulating block 5, and the periphery of the first receiving space 411 is provided with two first side walls 412 parallel to each other and connecting the bottom ends of the two first side walls 412. The first bottom wall 414. The inner sides of the two first side walls 412 are respectively provided with a plurality of first guide grooves 4121 which are concave outwards and extend along the vertical direction, and the outer sides of the two first side walls 412 are provided with a plurality of first protrusions 4122 . The first bottom wall 414 defines a first through hole 4141 vertically penetrating through the first bottom wall 414 . The tongue part 42 is provided with a first installation surface 421, a second installation surface 423 located on the rear side of the first installation surface 421, and located on both sides of the first installation surface 421 and the second installation surface 423, and is used to electrically connect with the docking socket. The connector (not shown) abuts against the mating surface 422 . The first installation surface 421 is lower than the second installation surface 423 and the mating surface 422 , and the second installation surface 423 is at the same height as the mating surface 422 . The tongue part 42 is provided with a plurality of first terminal receiving grooves 4231 located on the second installation surface 423 and recessed downwards, a plurality of second through holes 4211 located on the first installation surface 421 and passing through the tongue part 42 and located on the first The installation surface 421 is located in a plurality of second terminal receiving grooves 4212 on the front side of the second through hole 4211 . The tongue portion 42 also has two parallel first sides 424 , and the tongue portion 42 protrudes outward from the two first sides 424 to form a plurality of first protrusions 4241 . The first protruding portion 4122 and the first protruding block 4241 are in interference fit with the shielding case 3 , so that the first insulating block 4 and the shielding case 3 cooperate more firmly. The fixing portion 43 has a first top surface 431 , a first bottom surface 432 parallel to the first top surface 431 , and a plurality of third through holes 4315 vertically penetrating the fixing portion 43 from the first top surface 431 . The fixing portion 43 has a plurality of protruding ribs 4313 extending vertically from the first top surface 431 , and a plurality of third terminal receiving grooves 4314 are formed between the protruding ribs 4313 . The fixing part 43 protrudes upward from the middle of the rear end of the first top surface 431 to form a second protrusion 4311 in the shape of an "I" and is located on both sides of the second protrusion 4311 and extends upward and outward in a circular arc. Shaped third bump 4312 . The first bottom surface 432 is provided with a plurality of downwardly extending cylindrical fourth protrusions 4321, the fourth protrusions 4321 are matched with a circuit board (not shown), so that the electrical plug connector 100 precisely positioned on the circuit board (not shown).

Please refer to FIG. 6 , the second insulating block 5 is provided with a plurality of first terminal receiving holes 51 penetrating through the second insulating block 5 from front to back along the horizontal direction. The second insulating block 5 includes a second top surface 52 and two second sides 53 located on two sides and parallel to each other. The second insulating block 5 is provided with a first recessed portion 521 recessed downward from the second top surface 52, a second recessed portion 522 in the middle of the second top surface 52, and a second recessed portion 522 located in the middle of the second top surface 52. There are two third recessed portions 523 on both sides of the recessed portion 522 . The second insulating block 5 protrudes outward from the two second sides 53 to form a plurality of first guide pillars 531 extending in the vertical direction, and the first guide pillars 531 correspond to the first guide grooves 4121 With cooperation, the second insulating block 5 can be accurately accommodated in the first accommodation space 411 .

Please refer to FIG. 5 to FIG. 6 , the conductive terminal 2 includes a first conductive terminal 21 disposed in the first insulating block 4 and a second conductive terminal 22 assembled in the second insulating block 5 . In other embodiments, the second conductive terminal 22 may also be fixed on the first insulating block 4 by embedding molding. The first conductive terminal 21 includes a first contact portion 211 disposed on the first mounting surface 421 and housed in the second terminal receiving groove 4212 in a flat shape and exposed to the socket 110 , and extending from the first insulating block 4 . The first welding portion 213 , the first connection portion 212 connecting the first contact portion 211 and the first welding portion 213 , and the first extension portion 214 further bent and extended downward from the first contact portion 211 . The first connecting portion 212 has a front end portion and another portion wider than the front end portion, and the front end portion is disposed on the second mounting surface 423 and exposed in a flat plate shape. The first connecting portion 212 is embedded in the first insulating block 4 , so that the first terminal 21 can be more firmly fixed on the first insulating block 4 . In other embodiments, the first terminal 21 can also be assembled in the first insulating block 4 . The first contact portion 211 has a first upper surface 2111 on the upper side, and the first upper surface 2111 is higher than the first installation surface 421 . The first upper surface 2111 is at the same height as the second installation surface 423, which can prevent the elastic terminals on the mating socket electrical connector from being pushed away by the second installation surface 423 and away from the first terminal 21 to cause circuit disconnection. situation occurs. In other implementation manners, the first upper surface 2111 may also be higher than the second installation surface 422 . The first terminal 21 conforms to the USB2.0 protocol, and includes a ground terminal G on one side, a power terminal P on the other side, and a pair of signal terminals S between the ground terminal G and the power terminal P. The first welding portion 213 of the ground terminal G and the power terminal P extends outward, the first welding portion 213 of the pair of signal terminals S is close together inward, and the pair of signal terminals S and the ground terminal G and power supply The terminals P are respectively formed with a first gap 2131 and a second gap 2132 .

Please continue to refer to FIG. 5 to FIG. 6 , the second conductive terminal 22 includes a ground terminal in the middle and two pairs of differential signal terminals located on both sides of the ground terminal. The second conductive terminal 22 includes a second holding portion 222 held in the first terminal receiving hole 51 , an arc-shaped elastic second contact portion 221 extending forward from the front end of the second holding portion 222 and extending from the second holding portion 222 . The second connecting portion 223 extending backward from the rear end of the two holding portions 222 and the second welding portion 224 further extending from the second connecting portion 223 and arranged in a row. The second contact portion 221 is received in the first terminal receiving groove 4231 and protrudes from the second installation surface 423 , and the second connecting portion 223 is received in the third terminal receiving groove 4314 . The second welding part 224 of the ground terminal is divided into two parts with a first opening 2243 formed in the middle, the first welding part 213 and the second welding part 224 are arranged in two rows, the first part of the signal terminal S The welding part 213 is accommodated in the first opening 2243; the second welding part 224 is divided into two parts by the first opening 2243, one part is the first dense area 2241, and the other part is the second dense area 2242, the first The dense area 2241 is located in the first gap 2231 , and the second dense area 2242 is located in the second gap 2232 . In this embodiment, the terminal group composed of the first terminal 21 and the second terminal 22 conforms to the USB3.0 protocol.

3 to 4, the shielding housing 3 includes a first top wall 31, a second bottom wall 33 parallel to the first top wall 31, and a second bottom wall 33 connecting the first top wall 31 and the second bottom. The two second side walls 32 of the wall 33, the first top wall 31 is provided with fourth through holes 311 arranged in a row at the front end, and a plurality of first through holes arranged in a row at the rear side of the fourth through holes 311. A shrapnel 312. The fourth through hole 311 cooperates with the shrapnel on the shielding shell (not shown) of the mating socket electrical connector, so that the plug electrical connector 100 is more firmly combined with the socket electrical connector. The first elastic piece 312 cooperates with the third recessed portion 523 to prevent the second insulating block 5 from sliding in the horizontal direction relative to the shielding case 3 in the left-right direction or forward. The second top wall 31 is also provided with a second elastic piece 313 located on the rear side of the first elastic piece 312. The second elastic piece 313 cooperates with the second recessed part 522 to further prevent the second insulating block 5 from moving in the horizontal direction. Sliding upward relative to the shielding housing 3 in the left and right direction or sliding forward. The rear end of the second top wall 31 is provided with a second opening 314 in the middle and two third openings 315 on both sides, the second opening 314 and the third opening 315 are respectively connected with the second protrusion 4311 and the second The cooperation of the three protrusions 4312 can prevent the insulating body 1 from sliding left and right in the horizontal direction or sliding forward and moving up and down in the vertical direction relative to the insulating body 3 . The rear end of the second top wall 31 is provided with two first extension walls 321 extending vertically downwards, and the first extension walls 321 are engaged with the circuit board (not shown) to play a role in connecting with the circuit board ( not shown) phase immobilization effect. The second bottom wall 33 is provided with a plurality of fifth through holes 331 arranged in a row, and the fifth through holes 331 cooperate with the shrapnel on the shielding shell (not shown) of the socket electrical connector to play the role of The effect of making the plug electrical connector 100 and the socket electrical connector more firmly connected. The second bottom wall 33 is also provided with a plurality of first protrusions 332 and a plurality of first recesses 333, the first protrusions 332 and the first recesses 333 are snapped together so that the second bottom wall 33 can be firmly connected together.

Fig. 7 shows another embodiment of the plug electrical connector 100' of the utility model, the plug electrical connector 100' has basically the same structure as the aforementioned plug electrical connector 100, for example, the first contact portion 211' of the first terminal 21' The exposed upper surface 2111' of the insulating body 1' is also higher than the first installation surface 421' near the port of the insulating body 1', and is equal to, or higher than, the second installation surface 423' behind the first installation surface 421'. The difference from the aforementioned electrical plug connector 100 is that the second installation surface 423' is lower than the mating surface 422' located on both sides of the first and second installation surfaces 421', 423'.

In summary, the above are only preferred embodiments of the utility model, and should not limit the scope of the utility model, that is, any simple equivalent changes made according to the claims of the utility model and the content of the utility model description All should still belong to the scope that the utility model patent covers.

Claims (10)

1. A plug electrical connector, comprising a first insulating block and a plurality of conductive terminals arranged on the first insulating block; the first insulating block is provided with a main body and a tongue portion extending forward from the main body, the The tongue part is provided with a first installation surface, a second installation surface located on the rear side of the first installation surface, and a matching fitting located on both sides of the first installation surface and the second installation surface and used to abut and cooperate with the electrical connector of the docking socket. Connecting surface; the conductive terminal includes a first conductive terminal, and the first conductive terminal includes a flat plate-shaped first contact portion arranged on the first mounting surface, a first welding portion extending from the first insulating block, and a first connecting portion connected to the first insulating block. A contact portion and a first connection portion of the first soldering portion, the first contact portion is provided with a first upper surface, characterized in that: the first upper surface is equal to or higher than the second mounting surface. 2. The electrical plug connector according to claim 1, wherein the mating surface is equal to or higher than the second mounting surface. 3. The electrical plug connector according to claim 1, wherein the first upper surface is higher than the first installation surface, and the second installation surface is higher than the first installation surface. 4. The electrical plug connector according to claim 1, wherein the first connecting part is provided with a front part and other parts wider than the front part, and the front part is arranged on the second mounting surface and is flat The shaped part is exposed. 5. The electrical plug connector according to claim 1, wherein the first conductive terminal conforms to the USB2.0 protocol. 6. The plug electrical connector according to claim 1, wherein the conductive terminal further includes a second conductive terminal, and the terminal group composed of the first conductive terminal and the second conductive terminal conforms to the USB3.0 protocol; The second conductive terminal includes a second holding portion, an elastic second contact portion extending forward from the front end of the second holding portion in an arc shape and exposed outside, a second connecting portion extending backward from the rear end of the second holding portion, and The second welding part further extends from the second connecting part, the tongue part is provided with a plurality of first terminal receiving grooves recessed from the second mounting surface, the second contact part is received in the first terminal receiving groove, and protrudes protrudes from the second mounting surface. 7. The electrical plug connector according to claim 6, wherein the second conductive terminal includes a grounding terminal located in the middle, and the second welding part of the grounding terminal is divided into two parts, and between the two parts A first opening is formed. 8. The electrical plug connector according to claim 7, wherein the first soldering portion and the second soldering portion are arranged in a row, the first terminal includes a pair of signal terminals, and the The first soldering portion to the signal terminal is located in the first opening of the second soldering portion of the ground terminal. 9. The electrical plug connector according to claim 6, characterized in that: the electrical plug connector further comprises a second insulating block, and a first insulating block located behind the first terminal receiving groove is arranged on the first insulating block. The accommodating space, the second insulating block is accommodated in the first accommodating space, and the second conductive terminal is fixed on the second insulating block. 10. The plug electrical connector according to claim 1, characterized in that: the plug electrical connector further comprises a shielding shell covering the tongue part, and the two sides of the tongue part are provided with the Several first protrusions that interfere with the shielding shell.

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