TWM569507U - Electrical connector - Google Patents

Abstract

The present invention provides an electrical connector including an insulative housing, a plurality of conductive terminals and a reinforcing member. The insulative housing includes a base and a tongue. The plurality of conductive terminals include an upper row of terminals and a lower row of terminals, and the reinforcing members are disposed on the upper row of terminals and the lower row. Between the terminals, the upper row of terminals and the lower row of terminals comprise a holding portion held on the base, a contact portion exposed to upper and lower sides of the tongue plate, and a row of welded portions extending rearwardly from the rear end of the base, the reinforcing member including the extension a grounding leg at the rear end of the base, the grounding leg is located on two sides of the horizontal row of the welding portion, and a pair of boss portions are disposed at the rear end of the base, and a row of welding portions is formed between the pair of boss portions The inner receiving groove includes a horizontal plate portion held in the boss portion, and the grounding leg passes downward from the inner edge of the horizontal plate portion through the boss portion.

Description

Electrical connector

The present invention relates to an electrical connector, and more particularly to an electrical connector suitable for forward and reverse insertion.

In the Chinese utility model patent No. 203967306U published on June 24, 2015, in the USB connector that can be inserted and reinsed, the soldering portions of the two conductive terminal groups are arranged in a row at the rear end of the connector, but are located The reinforcing member between the two conductive terminal groups is connected to the circuit board by the soldering legs of the connecting member, and the connecting member is assembled between the upper insulating base and the lower insulating base and elastically resists with the reinforcing member, the connecting member The soldering legs are disposed in a row of colored soldering portions of the two conductive terminal groups to form a row together, so that the soldering legs and the soldering portions are overcrowded, and the conductive terminals and the reinforcing members are formed during soldering. The short circuit is connected, which affects the subsequent normal use, and the structure of the connecting member of the separately disposed reinforcing member is complicated and high in cost. In Chinese Patent No. 106025615A published on October 12, 2016, it is disclosed that the rear end of the first rubber-clad portion is provided with two side arms, and the tail portion of each plug-in body is located between the two side arms, but the middle patch The rear end is retained in the side arm and extends from the inner side of the side wall, so that the rear end of the intermediate patch is too close to the tail of each plug body to cause a short circuit between the plug body and the intermediate patch.

Therefore, it is indeed necessary to provide a new electrical connector to overcome the above drawbacks.

The purpose of the present invention is to provide a new electrical connector having a large space between the welded portions of the conductive terminals and having a simple structure and being easy to manufacture.

To achieve the foregoing objective, the present invention includes an insulative housing, a plurality of conductive terminals held in the insulating body, and a reinforcing member held in the insulating body, the insulating body including a base and the base a tongue extending forwardly, the plurality of conductive terminals including an upper row of terminals and a lower row of terminals, the reinforcing member being disposed between the upper row of terminals and the lower row of terminals, the upper row of terminals and the lower row of terminals comprising a holding portion fixed to the base, a contact portion extending from the holding portion and exposed to upper and lower sides of the tongue plate, and a rear end extending from the holding portion to a rear end of the base a row of soldering portions, the reinforcing member includes a grounding leg extending from a rear end of the base, the grounding leg is located on two sides of the row of the soldering portion, and a rear end of the base is provided with a pair of boss portions a receiving groove is formed between the pair of boss portions for receiving the row of soldering portions, and the reinforcing member includes a horizontal plate portion held in the boss portion, the grounding leg is self-contained The inner edge of the horizontal plate portion passes downward through the boss portion

Further, the electrical connector of the electrical connector further includes a rear end seat disposed at a rear of the base and separated, the rear end seat partially enclosing a holding portion of each of the conductive terminals, the pair The boss portion is formed to extend horizontally rearwardly on both sides of the rear end of the rear end seat, and the reinforcing member is retained by the first support portion in the tongue plate and the second support portion held in the base. The horizontal plate portion is located at a rear end of the second support portion and extends horizontally rearward and away from the welded portion in a lateral direction, and the grounding leg is located outside the receiving groove.

Further, an outer side of the pair of boss portions of the electrical connector is respectively provided with a receiving groove, and an inner edge of the horizontal plate portion is received in the receiving groove and wrapped by the boss portion, The outer edge of the horizontal plate portion is exposed to the outside from the receiving groove.

Further, the reinforcing member of the electrical connector is two pieces separated from each other, and a distance between the inner edges of the two horizontal plate portions of the two-piece reinforcing member in the width direction is greater than the capacity The width of the groove.

Further, the electrical connector of the electrical connector further includes a metal outer casing that is sleeved outside the insulating body and formed with a front and rear accommodating space, and the base is received in the receiving space, The tongue plate and the receiving space constitute a docking cavity, and the metal shell is a seamless metal member formed by injection molding of metal powder.

Further, an inner wall of the metal casing of the electrical connector protrudes from the receiving space with a stop wall, and the electrical connector further includes a fixing fixed to the stopping wall to restrict the backward movement of the insulating body. board.

Further, the metal casing of the electrical connector further includes a first cylindrical portion at the front end and a second cylindrical portion connected to the rear end of the first cylindrical portion, the stop wall being located at the The junction of the first cylindrical portion and the second cylindrical portion is described.

Further, the base of the electrical connector defines a front end surface and a rear end surface corresponding to the front end surface, the electrical connector further includes a plurality of bumps, and the plurality of bumps are from the partial stop a rear surface of the element wall is formed to extend rearwardly, the base further includes a fixing groove through which the protrusion passes and is fixedly fixed, and a rear surface of the stopping wall abuts against a front end surface of the base The fixing plate is fixed on the bump.

Further, the electrical connector of the electrical connector further includes a waterproof ring at a front end of the metal casing and a waterproof rubber plate located in a rear end of the metal casing, the waterproof ring being made of an insulating material and the metal The outer casing is integrally formed by injection molding, and the waterproof rubber sheet is formed by injection molding of an insulating material into the rear end of the metal casing, and the waterproof rubber sheet wraps the rear end of the insulating body and the fixing plate.

Further, the metal casing of the electrical connector further includes a pair of fixing legs extending on both sides of the tail of the metal casing and extending rearward, the pair of boss portions being located between the pair of fixing legs, The outer edge of the horizontal plate portion is abutted against the inner side surface of the fixing leg.

Compared with the prior art, the present electrical connector has the following effects: since the rear end seat holds a part of the holding portion and the second supporting portion of each of the conductive terminals, the structural strength of the rear end seat can be increased to protect the Each of the welded portions between the pair of boss portions, and each of the soldering between the pair of boss portions is provided because the second support portion and the grounding leg thereof are wrapped by the boss portion The portion has a large lateral space, which is advantageous for lifting the spacing between the welded portions to prevent false overlapping fire between the welded portions and between the welded portion and the grounding leg, and has a simple structure and is easy to manufacture.

Hereinafter, a specific embodiment of the present electrical connector 100 will be described in conjunction with the first to twelfth drawings. A port that defines the electrical connector 100 to be mated with a mating connector (not shown) is a plug end. The plug end is defined as the front end and the plugging direction is the front and rear direction.

As shown in the first to twelfth drawings, the present invention provides an electrical connector 100 including an insulative housing 1 and a plurality of conductive terminals 2 held in the insulative housing 1 and held in the insulative housing 1 . a reinforcing member 3, a metal casing 5 sleeved outside the insulating body 1, a fixing plate 6 held in the metal casing 5, a waterproof ring 7 held at the front end of the metal casing 5, and a metal casing formed on the metal casing 5 waterproof rubber sheet 8 in the tail.

Referring to the first to twelfth drawings, the insulative housing 1 includes an insulating member 11 , an insulating block 13 overmolded on the insulating member 11 , and behind the insulating member 11 and insulated from the insulating member 11 . The piece 11 is separated from the rear end seat 12. The insulating member 11 includes a base 111 and a tongue 112 extending forward from the base 111. The base 111 defines a front end surface 111a and a rear end surface 111b corresponding to the front end surface 111a. The susceptor 111 further includes a plurality of fixing grooves 1112 provided around the front end surface 111a and penetrating to the rear end surface 111b. The rear end seat 12 is separately disposed behind the rear end surface 111b of the base 111. The rear end seat 12 includes a pair of boss portions 121 formed to extend horizontally rearward from both sides. A receiving groove 123 is formed between the pair of boss portions 121. The outer side of each of the boss portions 121 is provided with a receiving groove 122 extending in the butting direction. The insulating block 13 fills the gap on the insulating member 11 and forms an inwardly recessed latching groove 1121 on both sides to fix the docking connector (not shown).

Referring to FIG. 4 to FIG. 12 , each of the conductive terminals 2 includes a contact portion 201 exposed outside the tongue plate 112 , a holding portion 202 held in the insulating body 1 , and the holding portion The portion 202 extends rearwardly from the welded portion 203 of the rear end portion. The plurality of conductive terminals 2 include an upper row of terminals 210 and a lower row of terminals 220 within the insulator 11. The upper row of terminals 210 and the lower row of terminals 220 have the same number of terminals and are symmetrically distributed along the central axis extending forward and backward, so that the docking connector (not shown) can achieve the purpose of docking in both the forward and reverse directions. The upper row of terminals 210 and the lower row of terminals 220 respectively include a pair of grounding terminals 23 on both sides, a pair of power terminals 24 and four signal terminals 25 located between the pair of grounding terminals 23. In the front-rear direction, the front end of the ground terminal 23 is further forward with respect to the front end of the power terminal 24, and the front end of the signal terminal 25 is further rearward with respect to the front end of the power terminal 24. The soldering portions 203 of the upper row of terminals 210 and the lower row of terminals 220 are arranged in a row in the width direction behind the tail portion of the base 111. The width of each of the ground terminal 23 and each of the power terminals 24 is greater than the width of each of the signal terminals 25.

Referring to the third and eighth to tenth drawings, in the present embodiment, the number of terminals of the upper row of terminals 210 and the lower row of terminals 220 is eight. The four signal terminals 25 of the upper row of terminals 210 are detected terminals (not labeled), USB 2.0 positive signal terminals (not labeled), USB 2.0 negative signal terminals (not labeled), and additional terminals (from left to right). Not numbered). The four signal terminals 25 of the lower row of terminals 220 are from the right to the left, which are detection terminals (not labeled), USB 2.0 positive signal terminals (not labeled), USB 2.0 negative signal terminals (not labeled), and additional terminals ( Not numbered). The soldering portion 203 of the USB 2.0 positive signal terminal and the USB 2.0 negative signal terminal located at the middle of the lower row of terminals 220 is located in the middle of the row of the soldering portions 203 of the upper row of terminals 210 and the lower row of terminals 220. The USB 2.0 positive signal terminal and the USB 2.0 negative signal terminal soldering portion 203 in the middle position of the upper row of terminals 210 are respectively located at the soldering portion 203 of the USB 2.0 positive signal terminal and the USB 2.0 negative signal terminal of the lower row terminal 220. The outside. The additional terminal and the Detector of the lower row of terminals 220 are arranged between the detection terminal of the upper row of terminals 210 and the soldering portion 203 of the USB 2.0 positive signal terminal and the soldering portion 203 of the USB 2.0 negative signal terminal and the additional terminal. The soldering portion 203 of the terminal is measured. The soldering portions 203 of the two power terminals 24 of the lower row of terminals 220 are arranged outside the soldering portions 203 of the eight signal terminals 25 of the upper row of terminals 210 and the lower row of terminals 220, respectively. A soldering portion 203 of a pair of power terminals 24 of the upper row of terminals 210, a pair of power terminals of the upper row of terminals 210 are respectively arranged outside the soldering portions 203 of the pair of power terminals 24 of the lower row of terminals 220 The welding portion 203 of the pair of grounding terminals 23 of the lower row of terminals 220 is arranged on the outer side of the welded portion 203 of the second row 24, and the outer side of the welded portion 203 of the pair of grounding terminals 23 of the lower row of the terminals 220 is The soldering portions 203 of the pair of ground terminals 23 of the upper row of terminals 210 are respectively arranged in the outermost sides of the soldering portions 203 in which the upper row of terminals 210 and the lower row of terminals 220 are arranged.

Referring to the fourth to twelfth drawings, the reinforcing members 3 are two-piece type separated from each other, and are disposed on both sides of the insulative housing 1 and symmetrically disposed in the width direction. The reinforcing member 3 includes a first supporting portion 31 that is retained in the tongue plate 112, a second supporting portion 32 that is formed to extend rearward from the first supporting portion 31 and is retained in the base 111. The horizontal plate portion 321 of the second support portion 32 extending rearwardly and received in the boss portion 121 and the inner edge 3211 of the horizontal plate portion 321 are bent downwardly to form a circuit board (not The grounding pin 322 of the grounding electrical connection is shown. The first support portion 31 further includes a convex portion 311 and a groove 312. The convex portion 311 is located at an outer edge of the front end of the first support portion 31 and extends outward in the width direction. The groove 312 is located behind the convex portion 311 and is recessed inwardly from the outer edge of the first support portion 31 in the width direction. The horizontal plate portion 321 is formed to extend outward in the width direction and then extend rearward with respect to the first support portion 31, thereby maximizing the distance between the inner edges 3211 of the two horizontal plate portions 321 expand.

Referring to the third to twelfth drawings, the insulating member 11 and the rear end seat 12 are integrally formed integrally with the upper row of terminals 210, the lower row of terminals 220 and the reinforcing member 3 as a whole. The two-piece reinforcing member 3 is disposed on both sides of the insulating member 11 and between the upper row of terminals 210 and the lower row of terminals 220. The rear end seat 12 partially covers the holding portion 202 and the horizontal plate portion 321 of the upper row of terminals 210 and the lower row of terminals 220, so that the exposed portions of the upper row of terminals 210 and the lower row of terminals 220 are fixed to the horizontal plate. The rear end seat 12 of the portion 321 is wrapped for the purpose of protecting the respective welded portions 203. Referring to FIG. 11 , the first support portion 31 is spaced apart between the two ground terminals 23 correspondingly disposed above and below the upper row terminal 210 and the lower row terminal 220 . The front ends of the two grounding terminals 23 correspondingly disposed above and below respectively abut against the front ends of the first supporting portions 31 to achieve a better common grounding electrical connection function.

Referring to the third to seventh figures, and the tenth to twelfth drawings, the soldering portions 203 arranged in a row in the upper row of terminals 210 and the lower row of terminals 220 are located in the pair of bosses. The accommodating groove 123 is between 121. The inner edge 3211 of the horizontal plate portion 321 of the reinforcing member 3 is received in the receiving groove 122 of each of the boss portions 121 and is wrapped by the respective boss portions 121, and the outer edge 3212 is self-owned The storage groove 122 is exposed to the outside. The horizontal plate portion 321 enhances the structural strength of the pair of boss portions 121, thereby effectively protecting each of the welded portions 203, and avoids that each of the welded portions 203 is directly exposed to the outside without being blocked.

In the width direction, the distance between the inner edges 3211 of the two horizontal plate portions 321 is greater than the width of the accommodating groove 123, so that the inner edge 3211 and the grounding leg 322 of the horizontal plate portion 321 are located in the capacity. The groove 123 is disposed outside, and the inner edge 3211 of the horizontal plate portion 321 and the welded portion 203 of each of the conductive terminals 2 are separated from the boss portion 121, thereby effectively preventing the conductive terminal 2 and the horizontal plate portion 321 from being erroneous. Docked and shorted to fire. Moreover, after the distance between the two horizontal plate portions 321 is increased, the width of the accommodating groove 123 is increased, so that the welded portions 203 of the upper row of terminals 210 and the lower row of terminals 220 can be arranged in a row. Arranging and also ensuring a large spacing between the soldering portions 203, making it easier to solder the soldering portions 203 to a circuit board (not shown), and preventing misconnection between the soldering portions 203 Then short circuit and fire.

Referring to the third to seventh figures and the tenth to twelfth drawings, the convex portions 311 of the first supporting portion 31 of the reinforcing member 3 are exposed outside the front ends of the tongue plates 112. The groove 312 of the first support portion 31 is exposed in the fastening groove 1121. The convex portion 311 and the recess 312 of the first supporting portion 31 are used to offset the holding member of the docking connector (not shown) when the docking connector (not shown) is held by the holding slot 1121 The protective tongue 112 is not scratched and is electrically connected to the grounding member of the mating connector (not shown).

Referring to the third to twelfth drawings, the metal casing 5 is a seamless structural metal member injection molded of metal powder. The metal casing 5 includes a first cylindrical portion 51 at the front end, a second cylindrical portion 52 connected to the first cylindrical portion 51, and horizontally extending from the first cylindrical portion 51 to both sides. A wing portion 512 positioned on a circuit board (not shown) and a pair of fixing legs 522 extending rearward from both sides of the rear end of the second cylindrical portion 52. The first cylindrical portion 51 has an elliptical cylindrical shape and constitutes a first receiving space 510. The second cylindrical portion 52 has a rectangular parallelepiped shape and constitutes a second housing space 520 that penetrates the first housing space 510. The front end of the first cylindrical portion 51 is defined as a front port 511, the rear end of the second cylindrical portion 52 is defined as a rear port 521, and the front port 511 is smaller than the rear port 521. A vertical extending stop wall 53 is provided at the intersection of the first cylindrical portion 51 and the second cylindrical portion 52. The stop wall 53 has a two-piece semi-annular shape and is disposed on both sides of the inner wall of the first cylindrical portion 51 in the transverse direction. The stop wall 53 has a certain wall thickness extending from a middle portion of the second cylindrical portion 52 to a portion where the second cylindrical portion 52 intersects with the first cylindrical portion 51, and separates the first receiving portion The space 510 and the second receiving space 520. The inner wall of the second cylindrical portion 52 is provided with a plurality of bumps 54 that engage with the plurality of fixing grooves 1112 of the base 111. The plurality of bumps 54 extend rearwardly from the rear end of the annular wall so as to also be visible as part of the abutment wall 53. The pair of fixing legs 522 first extend horizontally and then extend downward to electrically connect to a circuit board (not shown).

Referring to FIG. 5 and FIG. 11 to FIG. 12 , the insulating body 1 holding the upper row of terminals 210 , the lower row of terminals 220 and the reinforcing member 3 is fixed from the back to the front and sequentially through the second receiving. The space 520 and the first receiving space 510 are assembled into the metal casing 5. The tongue plate 112 is partially received in the first receiving space 510 and partially exposed to the outside of the first receiving space 510. The base 111 is received in the second receiving space 520. The first receiving space 510 and the second receiving space 520 together form a receiving space formed by the metal casing 5 surrounding the insulating body 1 . The first receiving space 510 and the tongue plate 112 form a docking cavity.

The rear surface of the stop wall 53 abuts against the front end face 111a of the base 111, thereby preventing the insulating body 1 from moving forward. The plurality of bumps 54 respectively pass through the plurality of fixing grooves 1112 of the base 111, and the rear surface of each of the bumps 54 is flush with the rear end surface 111b of the base 111 or located at the rear end surface 111b. rear. The welded portions 203 arranged in a row, the pair of the boss portions 121, and the horizontal plate portion 321 of the reinforcing member 3 are located between the pair of fixing legs 522. In the present embodiment, the outer edge 3212 of the horizontal plate portion 321 does not abut the inner side of the fixing leg 522, but in other embodiments, the outer edge 3212 of the horizontal plate portion 321 may be The inner side of the fixing leg 522 is abutted to achieve the purpose of common grounding electrical connection of the grounding terminal 23, the reinforcing member 3 and the metal casing 5.

Referring to the third, fifth, and twelfth drawings, the fixing plate 6 is a strip piece made of a metal material. In the present embodiment, the fixing plate 6 is one. The fixing plate 6 is fixed to the rear surface of each of the bumps 54 from the rear to the front and is welded and fixed to each of the bumps 54 by laser welding to enhance the structural strength of the electrical connector 100. At the same time, the fixing plate 6 can be forwardly abutted against the rear end surface 111b of the base 111 to fix the insulative housing 1 in the receiving space of the metal casing 5, preventing the insulating body 1 from falling back during assembly or use. The metal casing 5 is outside. The gap between each of the bumps 54 and the pedestal 111 can be covered to prevent the liquid insulating material that is subsequently poured into the second accommodating space 520 from penetrating into the first accommodating space 510. In other embodiments, the number of the fixing plates 6 may be set to at least two, or the fixing plate 6 may be disposed in a ring shape, thereby achieving better fixing of the insulating body 1 in the metal casing 5 and covering each. There are more gaps between the bumps 54 and the pedestal 111 to meet higher requirements.

Referring to the first to fifth figures, and the tenth to twelfth figures, the waterproof ring 7 is formed in an annular shape and integrally formed by an insulating material on the periphery of the front port 511 of the metal casing. form. The inner surface of the waterproof ring 7 is smooth and the outer surface is convexly provided with a plurality of ribs to interfere with the mating connector (not shown) or the frame of the electronic device to enhance the waterproof effect. Referring to FIGS. 2 to 5 and 10 to 12, the waterproof rubber sheet 8 is solidified by being poured into the second cylindrical portion 52 from a liquid insulating material. The waterproof rubber sheet 8 fills the second cylindrical portion 52 and wraps the fixing plate 6 therein, thereby sealing the gap between the base 111 of the insulative housing 1 and the metal outer casing 5.

In summary, this creation has indeed met the requirements for the creation of patents, and has 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 is not limited thereby. Equivalent modifications or changes made by those who are familiar with the technology in this case are still covered by the following patents.

100‧‧‧Electrical connector

1‧‧‧Insulating body

11‧‧‧Insulation

111‧‧‧Base

111a‧‧‧ front face

111b‧‧‧ rear end face

1112‧‧‧fixed slot

112‧‧‧ tongue plate

1121‧‧‧Locking slot

12‧‧‧ rear end seat

121‧‧‧Boss

122‧‧‧ Reception trough

123‧‧‧ accommodating slots

13‧‧‧Insulation block

2‧‧‧Electrical terminals

201‧‧‧Contacts

202‧‧‧ Holding Department

203‧‧‧Weld Department

210‧‧‧Upper terminal

220‧‧‧lower terminal

23‧‧‧ Grounding terminal

24‧‧‧Power terminal

25‧‧‧ Signal Terminal

3‧‧‧Strength

31‧‧‧First support

311‧‧‧ convex

312‧‧‧ Groove

32‧‧‧Second support

321‧‧‧ horizontal board

3211‧‧‧ inner edge

3212‧‧‧ outer edge

322‧‧‧ Grounding feet

5‧‧‧Metal casing

51‧‧‧First cylindrical part

510‧‧‧First containment space

511‧‧‧ front port

512‧‧‧ wing

52‧‧‧Second cylinder

520‧‧‧Second containment space

521‧‧‧ rear port

522‧‧‧Fixed feet

53‧‧‧stop wall

54‧‧‧Bumps

6‧‧‧Fixed plate

7‧‧‧Waterproof ring

8‧‧‧Waterproof rubber sheet

The first figure is a three-dimensional combination of the original electrical connector. The second figure is a three-dimensional combination diagram of the first figure seen from another direction. The third figure is a partial exploded view of the present electrical connector. The fourth figure is a partial exploded view of the electronic connector of the present invention. The fifth figure is a partial exploded view of the fourth figure seen from the other direction. The sixth figure is a partial exploded view of the original electrical connector after removing the metal casing, the waterproof ring and the waterproof rubber plate. The seventh figure is a three-dimensional exploded view of the sixth figure viewed from another direction. The eighth figure is an exploded view of the original electrical connector after removing the metal casing, waterproof ring, waterproof rubber plate and insulating block. The ninth figure is an exploded perspective view of the eighth figure viewed from another direction. The tenth drawing is a cross-sectional view taken along the line X-X in the first drawing. The eleventh figure is a cross-sectional view taken along line XI-XI in the first figure. Figure 12 is a cross-sectional view taken along the line XII-XII in the first figure. The present invention will be further described below in conjunction with the drawings and embodiments.

Claims (10)

An electrical connector includes an insulative housing, a plurality of electrically conductive terminals held in the insulative housing, and a reinforcing member retained in the insulative housing, the insulative housing including a base and a tongue extending forward from the base a plurality of conductive terminals including an upper row of terminals and a lower row of terminals, the reinforcing member being disposed between the upper row of terminals and the lower row of terminals, wherein the upper row of terminals and the lower row of terminals are supported by the base a retaining portion, a contact portion extending forward from the retaining portion and exposed to upper and lower sides of the tongue plate, and a row of welded portions extending rearward from the retaining portion to a rear end of the base, The reinforcing member includes a grounding leg extending from a rear end of the base, the grounding leg is located on two sides of the row of the welding portion, wherein a rear end of the base is provided with a pair of boss portions, the first A receiving groove is formed between the boss portions for receiving the row of soldering portions, the reinforcing member includes a horizontal plate portion held in the boss portion, and the grounding leg is from the horizontal plate The inner edge of the portion passes down the boss. The electrical connector of claim 1, wherein the electrical connector further comprises a rear end seat disposed behind the base and separately disposed, the rear end seat portion enclosing the holding of each of the conductive terminals a pair of boss portions are formed to extend horizontally rearwardly on both sides of the rear end of the rear end seat, and the reinforcing member is fixed to the first support portion in the tongue plate and the first portion held in the base plate a second supporting portion, the horizontal plate portion is located at a rear end of the second supporting portion and extends horizontally rearward and away from the welded portion in a lateral direction, and the grounding leg is located outside the receiving groove. The electrical connector of claim 1, wherein the outer side of the pair of boss portions is respectively provided with a receiving groove, and the inner edge of the horizontal plate portion is received in the receiving groove and is convex The table portion is wrapped, and an outer edge of the horizontal plate portion is exposed to the outside from the receiving groove. The electrical connector of claim 3, wherein the reinforcing member is a two-piece type separated from each other, and the inner edges of the two horizontal plate portions of the two-piece reinforcing member are in the width direction The distance is greater than the width of the receiving groove. The electrical connector of claim 1, wherein the electrical connector further comprises a metal casing sleeved outside the insulating body and formed with a front and rear accommodating space, the pedestal being received in the In the accommodating space, the tongue plate and the accommodating space constitute a docking cavity, and the metal shell is a seamless metal member formed by injection molding of metal powder. The electrical connector of claim 5, wherein an inner wall of the metal casing protrudes from the receiving space with a stop wall, and the electrical connector further includes a fixing wall to the stop wall to limit the A fixing plate for moving the insulating body backward. The electrical connector of claim 6, wherein the metal outer casing further comprises a first cylindrical portion at the front end and a second cylindrical portion connected to the rear end of the first cylindrical portion, The stop wall is located at a junction of the first cylindrical portion and the second cylindrical portion. The electrical connector of claim 6, wherein the base defines a front end surface and a rear end surface corresponding to the front end surface, and the electrical connector further includes a plurality of bumps, the plurality of bumps Formed from a rear surface of a portion of the stop wall, the base further includes a fixing groove through which the protrusion passes and is fixed, the rear surface of the stop wall abuts against the base The front end face of the seat, the fixing plate is fixed on the bump. The electrical connector of claim 6, wherein the electrical connector further comprises a waterproof ring at a front end of the metal casing and a waterproof rubber plate located in a rear end of the metal casing, the waterproof ring being The insulating material is formed by solidification molding together with the metal casing, and the waterproof rubber sheet is formed by injection molding of the insulating material into the rear end of the metal casing, and the waterproof rubber sheet is wrapped around the back end of the insulating body. And fixed plate. The electrical connector of claim 5, wherein the metal casing further comprises a pair of fixing legs extending on both sides of the tail of the metal casing and extending rearward, the pair of boss portions being located at the pair Between the fixed feet, the outer edge of the horizontal plate portion abuts against the inner side of the fixed leg.