CN113972522A

CN113972522A - Electrical connector assembly

Info

Publication number: CN113972522A
Application number: CN202010723669.9A
Authority: CN
Inventors: 曾威达; 陈明庆
Original assignee: Foxconn Kunshan Computer Connector Co Ltd; Foxconn Interconnect Technology Ltd
Current assignee: Foxconn Kunshan Computer Connector Co Ltd; Foxconn Interconnect Technology Ltd
Priority date: 2020-07-24
Filing date: 2020-07-24
Publication date: 2022-01-25
Also published as: TW202205750A

Abstract

An electric connector assembly comprises a first electric connector arranged on a first circuit board and a second electric connector arranged on a second circuit board and embedded with the first electric connector in the up-down direction, wherein the first electric connector comprises a first insulating body and two rows of first conductive terminals fixed on the first insulating body, the first insulating body is provided with a first base and a tongue part, the second electric connector comprises a second insulating body and two rows of second conductive terminals fixed on the second insulating body, the second insulating body is provided with a second base, a pair of longitudinal side walls and a pair of end walls, a slot for inserting the tongue part is formed by the surrounding of the pair of side walls and the pair of end walls, the first conductive terminal is provided with a first plate-shaped contact surface embedded on the butt joint surface of the tongue part and a first welding part extending out of the first base from the lower end of the first plate-shaped contact surface, and the second conductive terminal is provided with a second plate-shaped contact surface embedded on the inner surface of the side walls, And when the first electric connector and the second electric connector are butted with each other, only the first plate-shaped contact surface of the first conductive terminal and the second plate-shaped contact surface of the second conductive terminal are butted. The conductive terminals of the two electric connectors have simple structures and short connecting paths, not only can effectively reduce high-frequency insertion loss, but also can effectively reduce the volume of the electric connectors, and accords with the development trend of miniaturization of the electric connectors.

Description

Electrical connector assembly

[ technical field ] A method for producing a semiconductor device

The present invention relates to a board-to-board electrical connector assembly fitted to each other mounted to a circuit board.

[ background of the invention ]

Chinese patent No. CN106329248B discloses an electrical connector assembly mounted on a circuit board, which includes a first electrical connector and a second electrical connector vertically embedded with the first electrical connector. The first electric connector comprises a first insulating body extending along the longitudinal direction and two rows of first conductive terminals which are fixedly arranged on the first insulating body along the longitudinal direction, wherein the first insulating body comprises a base, a tongue part formed by upwards protruding from the base and a peripheral wall which is arranged around the tongue part and forms an annular slot with the tongue part. The second electric connector comprises a second insulating body extending along the longitudinal direction and two rows of second conductive terminals which are fixedly held on the second insulating body and arranged along the longitudinal direction, the second insulating body comprises a base part and a peripheral part which is formed by upwards protruding from the base part and forms a slot, the two rows of second conductive terminals are respectively arranged on a pair of side parts of the peripheral part, when the two electric connectors are butted, the tongue part is inserted into the slot, and the peripheral part is inserted into the annular slot. The first conductive terminal comprises a first welding part, an n-shaped first fixing part extending from the first welding part and arranged on the side wall of the peripheral wall and a u-shaped elastic contact arm arranged in the annular slot and provided with double-side contact parts, and the second conductive terminal comprises a second welding part and an n-shaped butt joint part extending from the second fixing part and fixed on the side part and provided with the double-side contact parts. However, when two electrical connectors are mated, the "n" -shaped mating portion is inserted into the "u" -shaped elastic contact arm, and the two electrical connectors are in double-side contact with each other, the conduction path between the terminals of the two electrical connectors is long, the high-frequency insertion loss is increased, and the two electrical connectors have a large volume, which is not in line with the trend of miniaturization of the electrical connectors.

Accordingly, there is a need for an improved electrical connector assembly that overcomes the above-mentioned deficiencies.

[ summary of the invention ]

The technical problem to be solved by the present invention is to provide a board-to-board electrical connector assembly having a shorter terminal connection path, a simple structure, and a mating conductive terminal that is stable and reliable in mating.

The purpose of the invention is realized by the following technical scheme: an electrical connector assembly comprises a first electrical connector and a second electrical connector embedded with the first electrical connector in the up-down direction, wherein the first electrical connector comprises a first insulating body extending along the longitudinal direction and two rows of first conductive terminals fixed on the first insulating body and arranged along the longitudinal direction, the first insulating body is provided with a first base and a tongue portion extending upwards from the first base, the second electrical connector comprises a second insulating body extending along the longitudinal direction and two rows of second conductive terminals fixed on the second insulating body and arranged along the longitudinal direction, the second insulating body is provided with a second base, a pair of side walls extending upwards from the second base and formed along the longitudinal direction and a pair of end walls connecting the two longitudinal ends of the pair of side walls, and a slot for inserting the tongue portion is formed by enclosing the pair of side walls and the pair of end walls, the two rows of first conductive terminals are respectively provided with a first plate-shaped contact surface which is embedded and fixed on the butt joint surfaces of the two transverse sides of the tongue part and a first welding part which transversely extends out of the first base from the lower end of the first plate-shaped contact surface, the two rows of second conductive terminals are respectively provided with a second plate-shaped contact surface which is embedded and fixed on the inner surfaces of the pair of side walls and a second welding part which transversely extends out of the second base from the lower end of the second plate-shaped contact surface, and when the first electric connector and the second electric connector are mutually butted, only the first plate-shaped contact surface of the first conductive terminal is abutted with the second plate-shaped contact surface of the second conductive terminal.

Further, the two rows of first conductive terminals are integrally formed on the first insulating body, the two rows of first conductive terminals further have a first arc-shaped guide surface extending from the upper end of the first plate-shaped contact surface to the upper surface of the tongue portion, the first conductive terminals are approximately in a "Z" shape, the two rows of second conductive terminals are integrally formed on the second insulating body, the two rows of second conductive terminals further have a second arc-shaped guide surface extending from the upper end of the second plate-shaped contact surface to the upper surface of the side wall, and the second conductive terminals are approximately in a "コ" shape.

Further, the first electrical connector further includes a metal shell integrally formed on the first insulating body, the metal shell includes a peripheral wall surrounding the peripheral side of the first base and forming an annular slot with the tongue portion, the peripheral wall includes a pair of side portions extending in a longitudinal direction and a pair of end portions connecting both longitudinal ends of the pair of side portions, and the first soldering portions of the two rows of the first conductive terminals are respectively located inside the pair of side portions.

Further, the metal shell is further provided with a pair of bottom plates which connect the lower ends of the two longitudinal sides of the side portion, the pair of bottom plates extend upwards to form a pair of plate-shaped embedded portions which are integrally formed at the two longitudinal ends of the first insulating body, a through frame opening is formed between the pair of bottom plates in the longitudinal direction, and the pair of plate-shaped embedded portions are located at the outer sides of the two longitudinal ends of the two rows of first conductive terminals.

Furthermore, each end portion comprises a first half end portion integrally connected with one of the side portions and a second half end portion integrally connected with the other of the side portions, a free end of the first half end portion protrudes to form a protruding portion, a free end of the second half end portion is recessed to form a groove portion, the protruding portion and the groove portion are clamped and fixed, the bottom plate longitudinally and outwardly extends to form a pair of limiting portions located below the end portions, the first half end portion and the second half end portion respectively extend downwards to form extending portions located between the pair of limiting portions, and the metal shell is formed by bending a single plate body.

Further, the first conductive terminal is integrally formed on the first insulating body, the second conductive terminal is integrally formed on the second insulating body, the first conductive terminal and the second conductive terminal are formed by stamping, one of the first plate-shaped contact surface or the second plate-shaped contact surface protrudes to form a contact convex portion, the other one of the first plate-shaped contact surface or the second plate-shaped contact surface is recessed to form a contact concave portion for the contact convex portion to be buckled into, the upper end of the contact convex portion forms a guide inclined surface, the first plate-shaped contact surface or the second plate-shaped contact surface is recessed to form a groove on the opposite side of the contact convex portion, and the first insulating body or the second insulating body is provided with an embedding convex block which is embedded into the groove during forming.

Further, the outer side surfaces of the pair of side walls of the second electrical connector are recessed inward in the arrangement area of the second conductive terminal to form an accommodating space penetrating through the upper and lower surfaces of the side walls, and the second welding portion is disposed in the accommodating space when viewed from the upper and lower directions.

Further, the second electric connector further comprises a metal shell integrally formed on the second insulating body and abutted to the metal shell, the metal shell comprises a pair of plate-shaped side walls respectively arranged on the outer side surfaces of the pair of side walls, the outer side surfaces of the pair of side walls are arranged in the arrangement area of the second welding portion of the second conductive terminal and are inwards recessed to form an accommodating space which is communicated with the upper surface and the lower surface of the side wall, when the second electric connector is embedded with the first electric connector, the pair of side portions of the metal shell are arranged on the outer side of the plate-shaped side wall and are abutted to the plate-shaped side wall.

Further, the plate-shaped side wall comprises a baffle part for shielding the accommodating space and side plate parts extending from the two longitudinal sides of the baffle part and fixedly embedded on the outer side surfaces of the side walls.

Further, the last reason of the surface of baffle portion forms the guide surface, the inside tear of side plate portion is formed with to inlay and locates the first leg of end wall, it is a pair of the vertical both sides of platelike side wall be connected with respectively between the side plate portion inlay in the roof of the upper surface of end wall, it is a pair of the roof with the junction of side plate portion forms arc guide portion, the roof downwardly extending form inlay solid in the end plate portion of the terminal surface of end wall, the end plate portion with the junction of roof forms arc guide portion, the inside tear of end plate portion is formed with to inlay and locates the second leg of end wall, the lower extreme of baffle portion outwards extends and forms the third leg.

Compared with the prior art, the electric connector assembly has the advantages that the terminal structures of the first conductive terminal of the first electric connector and the second conductive terminal of the second electric connector are simple, so that the connection path between the first conductive terminal and the second conductive terminal is short, the high-frequency insertion loss can be effectively reduced, the volume of the electric connector can be effectively reduced, the miniaturization development trend of the electric connector is met, in addition, the first plate-shaped contact surface and the second plate-shaped contact surface which are embedded and fixed by the first conductive terminal and the second conductive terminal are not easy to be inserted and collapsed when being matched and connected, and the structural stability of the first plate-shaped contact surface and the second plate-shaped contact surface which are rigid by the first conductive terminal and the second conductive terminal is good.

[ description of the drawings ]

Fig. 1 is a perspective view of a first electrical connector of the present invention separated from a second electrical connector.

Fig. 2 is a perspective view of fig. 1 from another perspective.

Fig. 3 is an exploded view of the first electrical connector of the present invention.

Fig. 4 is an exploded view from another perspective of fig. 3.

Fig. 5 is a top view of the first electrical connector of the present invention.

Fig. 6 is a front view of the first electrical connector of the present invention.

Fig. 7 is a side view of the first electrical connector of the present invention.

Fig. 8 is an exploded view of a second electrical connector of the present invention.

Fig. 9 is an exploded view from another perspective of fig. 8.

Fig. 10 is a top view of a second electrical connector of the present invention.

Fig. 11 is a front view of a second electrical connector of the present invention.

Fig. 12 is a side view of a second electrical connector of the present invention.

Fig. 13 is a perspective view of the first electrical connector and the second electrical connector of the present invention being fitted together.

Fig. 14 is a perspective view of fig. 13 from another perspective.

Fig. 15 is a cross-sectional view taken along line a-a of fig. 14.

The following detailed description will further illustrate the invention in conjunction with the above-described figures.

[ detailed description ] embodiments

Referring to fig. 1 to 15, a board-to-board electrical connector assembly 1000 according to the present invention includes a first electrical connector 100 mounted on a first circuit board (not shown) and a second electrical connector 200 mounted on a second circuit board (not shown) and vertically engaged with the first electrical connector 100. The first electrical connector 100 includes a first insulating body 1 extending along a longitudinal direction, two rows of first conductive terminals 2 fixed to the first insulating body 1 and arranged along the longitudinal direction, and a metal shell 3 surrounding the first insulating body 1, preferably, the first conductive terminals 2 are integrally formed on the first insulating body 1. The second electrical connector 200 includes a second insulating housing 4 extending along a longitudinal direction, two rows of second conductive terminals 5 fixed to the second insulating housing 4 and arranged along the longitudinal direction, and a metal shell 6 surrounding the periphery of the second insulating housing 4, preferably, the second conductive terminals 5 are integrally formed on the second insulating housing 4.

Referring to fig. 3 to 7, the first insulating body 1 of the first electrical connector 100 has a first base 11 and a tongue portion 12 formed extending upward from the first base 11, a circumferential dimension of the first base 11 is larger than a circumferential dimension of the tongue portion 12, and two lateral side surfaces of the tongue portion 12 perpendicular to a longitudinal direction are abutting surfaces 121. The two rows of first conductive terminals 2 respectively have a first plate-shaped contact surface 21 embedded in the abutting surfaces 121 on the two lateral sides of the tongue portion 12, and a first soldering portion 22 extending from the lower end of the first plate-shaped contact surface 21 to the outside in the lateral direction of the first base 11. Since the first plate-like contact surface 21 is fixed to the tongue portion 12, the first plate-like contact surface 21 does not move relative to the tongue portion 12, and the fixation is not limited to an integrally formed fixation manner, but may be a fixation manner by an interference retaining manner to the tongue portion 12. The upper end of the first plate-shaped contact surface 21 of each row of the first conductive terminals 2 extends to the upper surface 122 of the tongue 12 to form a first arc-shaped guide surface 23, and the first conductive terminals 2 are substantially in a zigzag shape. The first arc-shaped guiding surface 23 can be used to guide the second conductive terminal 5 of the second electrical connector 200 to realize butt joint, so as to prevent the tongue 12 from being worn by the second conductive terminal 5, and increase the bonding force between the first conductive terminal 2 and the insulating body 1. It should be noted that, in order to further enhance the combining force between the first conductive terminal 2 and the first insulating body 1, the first arc-shaped guiding surface 23 may be bent downward to form a bent portion (not shown) further embedded from the upper surface 122 of the tongue portion 12. It should be clear that, in the present invention, the first conductive terminal 2 may not be provided with the first arcuate guide surface 23 and the bent portion (not shown).

The metal shell 3 is preferably fixed to the first insulating body 1 by integral molding, and the metal shell 3 includes a peripheral wall 31 surrounding the peripheral side of the first base 11 and forming an annular slot 30 between the tongues 12, and a pair of spaced bottom plates 32 connected to the lower end of the peripheral wall 31 in the longitudinal direction. Specifically, the peripheral wall 31 includes a pair of side portions 311 extending in the longitudinal direction and a pair of end portions 312 connecting both longitudinal ends of the pair of side portions 311, and the pair of bottom plates 32 connect both longitudinal side lower ends of the pair of side portions 311 to each other. The first soldering portions 22 of the two rows of the first conductive terminals 2 are respectively located inside a pair of the side portions 311 and are spaced from the side portions 311 by a certain distance in the transverse direction. The pair of bottom plates 32 respectively extend upward to form a pair of plate-shaped embedding portions 321 integrally formed at two longitudinal ends of the first insulating body 1, and the pair of embedding portions 321 are located at outer sides of two longitudinal ends of the two rows of first conductive terminals 2. The plate-shaped fitting portion 321 extends upward from the first base 11 into the tongue portion 12, and the plate-shaped fitting portion 321 has a substantially T-shaped structure with a wide top and a narrow bottom, so that the metal shell 3 can reliably hold the first insulating body 1 by the plate-shaped fitting portion 321. A through frame opening 33 is formed between the pair of bottom plates 32 in the longitudinal direction, the through frame opening 33 is defined by the pair of bottom plates 32 and the pair of side portions 311, and a portion of the first insulating body 1 between the pair of plate-shaped embedding portions 321 is provided in a region of the through frame opening 33. The lower ends of the pair of side portions 311 extend downward in a region corresponding to the first soldering portion 22 to form soldering legs 3111 soldered to a first circuit board (not shown), and the lower ends of the pair of side portions 311 are recessed upward in a region corresponding to the first soldering portion 22 to form a viewing window 3112 for viewing the first soldering portion 22 laterally inward.

Each of the end portions 312 includes a first half end portion 3121 connected to one of the side portions 311 and a second half end portion 3122 connected to the other of the side portions 311, a free end of the first half end portion 3121 protrudes to form a protruding portion 31211, a free end of the second half end portion 3122 is recessed to form a groove portion 31221, and the protruding portion 31211 and the groove portion 31221 are snap-fixed such that the first half end portion 3121 and the second half end portion 3122 together constitute the end portion 312. Preferably, the profiles of the protruding portion 31211 and the groove portion 31221 are substantially spherical. The bottom plate 32 extends longitudinally outward to form a pair of limiting portions 322 located below the end portion 312, the first half end portion 3121 and the second half end portion 3122 extend downward to form an extending portion 313 located between the pair of limiting portions 322, and the pair of limiting portions 322 are used to stop the extending portion 313 to prevent the first half end portion 3121 and the second half end portion 3122 from being separated from each other. In the present invention, at least one of the bottom plate 32, the extension portion 313 and the restriction portion 322 can serve the purpose of soldering the metal shell 3 to the first circuit board (not shown). Further, for reliable bonding between the first half end 3121 and the second half end 3122, a welding process may be performed at a seam therebetween. It should be noted that, in the present invention, the metal shell 3 is formed by bending a single plate, whereas the metal shell 3 is formed by unfolding a single plate, so that the metal shell 3 has high structural strength and is convenient to manufacture.

Referring to fig. 8 to 15, the second insulating body 4 of the second electrical connector 200 has a second base 41, a pair of side walls 42 extending upward from the second base 41 and extending along the longitudinal direction, and a pair of end walls 43 connecting the two longitudinal ends of the pair of side walls 42. The pair of side walls 42 and the pair of end walls 43 enclose to form a slot 44, and the two rows of second conductive terminals 5 respectively have a second plate-shaped contact surface 51 embedded in the inner surfaces 420 of the pair of side walls 42 and a second soldering portion 52 extending from the lower end of the second plate-shaped contact surface 51 to the outside in the transverse direction of the second base 41. Since the second plate-like contact surface 51 is embedded in the side wall 42, the second plate-like contact surface 51 does not move relative to the side wall 42, and the embedding is not limited to an integrally formed embedding manner, but may be an interference clamping manner. The upper end of the second plate-like contact surface 51 of each row of the second conductive terminals 5 further extends to the upper surface of the side wall 42 to form a second arc-shaped guide surface 53, the second conductive terminals 5 are substantially shaped like コ, and the second arc-shaped guide surfaces 53 not only cooperate with the first arc-shaped guide surfaces 23 of the first conductive terminals 2 for guiding each other, but also increase the combining force between the second conductive terminals 5 and the second insulating body 4. Of course, in order to further enhance the combining force between the second conductive terminal 5 and the second insulating housing 4, the second arc-shaped guiding surface 53 may be bent downward to form a bending portion (not shown). In the present invention, the second conductive terminal 5 may not be provided with the second arcuate guide surface 53 and the bent portion (not shown). When the first electrical connector 100 and the second electrical connector 200 are mated with each other, the tongue plate 12 is inserted into the slot 44, the pair of side walls 42 and the pair of end walls 43 are inserted into the annular slot 30, and the first conductive terminal 2 is mated with the second conductive terminal 5. In the present invention, the path from the first soldering portion 22 of the first conductive terminal 2 to the first plate-shaped contact surface 21 is shorter, and the path from the second soldering portion 52 of the second conductive terminal 5 to the second plate-shaped contact surface 51 is also shorter, and the first conductive terminal 2 and the second conductive terminal 5 are electrically connected only by the first plate-shaped contact surface 21 and the second plate-shaped contact surface 51 being abutted, so that the conduction path between the first conductive terminal 2 of the first electrical connector 100 and the second conductive terminal 5 of the second electrical connector 200 is shorter, thereby not only reducing the high-frequency insertion loss of the two electrical connectors, but also reducing the volume of the two electrical connectors, and further reducing the area of the two electrical connectors occupying two circuit boards (not shown). Considering the reliability problem of the butt joint between the first plate-shaped contact surface 21 and the second plate-shaped contact surface 51, one of the first plate-shaped contact surface 21 and the second plate-shaped contact surface 51 protrudes with a contact convex portion 511, and the other one is concavely provided with a contact concave portion 211 for the contact convex portion 511 to buckle into. The upper end of the contact protrusion 511 is formed with a guide inclined surface 5111, and the contact protrusion 511 can be easily snapped into the contact recess 211 by the arrangement of the guide inclined surface 5111. In the present invention, the first conductive terminal 2 and the second conductive terminal 5 are formed by pressing, the second plate-shaped contact surface 51 of the second conductive terminal protrudes to form the contact protrusion 511, and the contact protrusion 511 is formed by punching from the opposite side of the second plate-shaped contact surface 51 toward the second plate-shaped contact surface 51, so that the second plate-shaped contact surface 51 is recessed to form the groove 512 on the opposite side of the contact protrusion 511. Correspondingly, the inner surface 420 of the sidewall 42 has an embedded bump 4201 embedded into the groove 512 when being molded at the position corresponding to the groove 512, so that the second conductive terminal 5 can be reliably combined with the sidewall of the second insulating body 4.

The outer side surfaces 421 of the pair of side walls 42 of the second electrical connector 200 are recessed inward in the arrangement area of the second conductive terminal 5 to form a receiving space 4211 penetrating the upper and lower surfaces of the side walls 42, and when viewed from the upper and lower directions, the second soldering portion 52 of the second conductive terminal 5 is disposed in the receiving space 4211. Compared with the second soldering portion 52 extending outward to form the sidewall, the second soldering portion 52 is disposed in the receiving space 4211 recessed in the sidewall 42, so that the overall length of the second conductive terminal 5 can be effectively reduced, and the conduction path between the second conductive terminal 5 and the first conductive terminal 2 can be further reduced. The metal shell 6 of the second electrical connector 200 is integrally formed on the second insulation body 4, the metal shell 6 includes a pair of plate-shaped side walls 61 respectively embedded and fixed on the outer side surfaces 421 of the pair of side walls 42, the pair of plate-shaped side walls 61 includes a baffle portion 611 for shielding the accommodating space 4211 and side plate portions 612 extending from the longitudinal two sides of the baffle portion 611 and embedded and fixed on the outer side surfaces 421 of the side walls 42, and the second welding portion 52 is disposed in the accommodating space 4211 and located inside the baffle portion 611 of the plate-shaped side wall 61 when viewed from the top-bottom direction. When the second electrical connector 200 is fitted to the first electrical connector 100, the pair of side portions 311 of the metal shell 3 are located outside the plate-shaped side wall 61 and abut against the plate-shaped side wall 61. A top plate 62 embedded in the upper surface 431 of the end wall 43 is connected between the side plate portions 612 on both longitudinal sides of the pair of plate-shaped side walls 61, and the top plate 62 extends downward to form an end plate portion 63 embedded in the end surface 432 of the end wall 43. When the first electrical connector 100 and the second electrical connector 200 are mated with each other, the metal shell 3 covers and abuts against the outer side of the metal shell 6. An arc-shaped guiding portion 64 is formed at the connection between the pair of top plates 62 and the side plate portions 612, an arc-shaped guiding portion 65 is formed at the connection between the end plate portions 63 and the top plates 62, and a guiding surface 6111 is formed at the upper edge of the outer surface of the baffle portion 611, so that when the first electrical connector 100 and the second electrical connector 200 are mated with each other, the metal shell 3 can be easily covered and finally abutted against the outer side of the metal shell 6 through the guiding of the arc-shaped

guiding portions

64, 65 and the guiding surface 6111. In addition, the upper edges of the inner surfaces of the side portion 311 and the end portion 312 of the metal shell 3 of the first electrical connector 100 are also provided with guide surfaces 314 for guiding the insertion of the second electrical connector.

In order to reliably solder the second electrical connector 200 to a second circuit board (not shown), the side plate portion 612 is inwardly torn to form a first solder leg 6121 embedded in the end wall 43 and extending downward from the end wall 43, the end plate portion 63 is inwardly torn to form a second solder leg 631 embedded in the end wall 43 and extending downward from the end wall 43, and the lower end of the baffle portion 611 is outwardly extended to form a third solder leg 6112. In order to reliably combine the metal shell 3 and the metal shell 6, at least one of the plate-shaped side wall 61 and the baffle portion 611 of the metal shell 6 is provided with a clamping point 64 in a protruding manner, and at least one of the side portion 311 and the end portion 312 of the metal shell 3 is provided with a clamping groove 315 in a recessed manner, wherein the clamping groove is matched with the clamping point 64. The lower end of the baffle portion 611 is recessed upward to form an inspection window 6113 for laterally and inwardly inspecting the second welding portion 52. In addition, a notch 3113 for giving way to the third fillet 6112 is concavely disposed on the side portion 311 of the metal shell 3 of the first electrical connector 100 at a position corresponding to the third fillet 6112 of the metal shell 6 of the second electrical connector, and when the two electrical connectors are mated, the third fillet 6112 is accommodated in the notch 3113 to limit the relative movement of the electrical connectors in the longitudinal direction.

The above description is only a part of the embodiments of the present invention, and not all embodiments, and any equivalent variations of the technical solutions of the present invention, which are made by those skilled in the art through reading the present specification, are covered by the claims of the present invention.

Claims

1. An electrical connector assembly comprises a first electrical connector and a second electrical connector embedded with the first electrical connector in the up-down direction, wherein the first electrical connector comprises a first insulating body extending along the longitudinal direction and two rows of first conductive terminals fixed on the first insulating body and arranged along the longitudinal direction, the first insulating body is provided with a first base and a tongue portion extending upwards from the first base, the second electrical connector comprises a second insulating body extending along the longitudinal direction and two rows of second conductive terminals fixed on the second insulating body and arranged along the longitudinal direction, the second insulating body is provided with a second base, a pair of side walls extending upwards from the second base and formed along the longitudinal direction and a pair of end walls connecting the two longitudinal ends of the pair of side walls, and a slot for inserting the tongue portion is formed by enclosing the pair of side walls and the pair of end walls, the method is characterized in that: the two rows of first conductive terminals are respectively provided with a first plate-shaped contact surface which is embedded and fixed on the butt joint surfaces of the two transverse sides of the tongue part and a first welding part which transversely extends out of the first base from the lower end of the first plate-shaped contact surface, the two rows of second conductive terminals are respectively provided with a second plate-shaped contact surface which is embedded and fixed on the inner surfaces of the pair of side walls and a second welding part which transversely extends out of the second base from the lower end of the second plate-shaped contact surface, and when the first electric connector and the second electric connector are mutually butted, only the first plate-shaped contact surface of the first conductive terminal is abutted with the second plate-shaped contact surface of the second conductive terminal.

2. The electrical connector assembly of claim 1, wherein: the two rows of first conductive terminals are integrally formed on the first insulating body, the two rows of first conductive terminals further have a first arc-shaped guide surface formed by extending from the upper end of the first plate-shaped contact surface to the upper surface of the tongue portion, the first conductive terminals are approximately in a Z shape, the two rows of second conductive terminals are integrally formed on the second insulating body, the two rows of second conductive terminals further have a second arc-shaped guide surface formed by extending from the upper end of the second plate-shaped contact surface to the upper surface of the side wall, and the second conductive terminals are approximately in a コ shape.

3. The electrical connector assembly of claim 1, wherein: the first electric connector further comprises a metal shell integrally formed on the first insulating body, the metal shell comprises a peripheral wall which is arranged around the first base and forms an annular slot with the tongue portion, the peripheral wall comprises a pair of side portions extending along the longitudinal direction and a pair of end portions connecting two longitudinal ends of the pair of side portions, and the first welding portions of the two rows of first conductive terminals are respectively located on the inner sides of the pair of side portions.

4. The electrical connector assembly of claim 3, wherein: the metal shell is further provided with a pair of bottom plates which connect the lower ends of the two longitudinal sides of the side portion, the pair of bottom plates extend upwards to form a pair of plate-shaped embedding portions which are integrally formed at the two longitudinal ends of the first insulating body, a through frame opening is formed between the pair of bottom plates in the longitudinal direction, and the pair of plate-shaped embedding portions are located on the outer sides of the two longitudinal ends of the two rows of first conductive terminals.

5. The electrical connector assembly of claim 4, wherein: each end portion comprises a first half end portion integrally connected with one of the side portions and a second half end portion integrally connected with the other of the side portions, the free end of the first half end portion protrudes to form a protruding portion, the free end of the second half end portion is concavely provided with a groove portion, the protruding portion and the groove portion are clamped and fixed, the bottom plate longitudinally and outwards extends to form a pair of limiting portions located below the end portions, the first half end portion and the second half end portion downwards respectively extend downwards to form extending portions located between the limiting portions, and the metal shell is formed by bending a single plate body.

6. The electrical connector assembly of claim 1, wherein: the first conductive terminal is integrally formed on the first insulating body, the second conductive terminal is integrally formed on the second insulating body, the first conductive terminal and the second conductive terminal are formed by stamping, one of the first plate-shaped contact surface or the second plate-shaped contact surface protrudes to form a contact convex part, the other one of the first plate-shaped contact surface or the second plate-shaped contact surface is concavely arranged to form a contact concave part for the contact convex part to be buckled in, the upper end of the contact convex part forms a guide inclined plane, the first plate-shaped contact surface or the second plate-shaped contact surface is concavely arranged on the opposite side of the contact convex part to form a groove, and the first insulating body or the second insulating body is provided with an embedding convex block which is embedded into the groove during forming.

7. The electrical connector assembly of claim 1, wherein: the outer side surfaces of the pair of side walls of the second electric connector are inwards recessed in the arrangement area of the second conductive terminals to form an accommodating space penetrating through the upper surface and the lower surface of the side walls, and the second welding part is arranged in the accommodating space when viewed from the upper direction and the lower direction.

8. The electrical connector assembly of claim 3, wherein: the second electric connector further comprises a metal shell integrally formed on the second insulating body and abutted to the metal shell, the metal shell comprises a pair of plate-shaped side walls respectively arranged on the outer side surfaces of the side walls, the outer side surfaces of the side walls are arranged in the arrangement area of the second welding part of the second conductive terminal, the arrangement area is inwards concave to form an accommodating space which is communicated with the upper surface and the lower surface of the side walls, and the second welding part is arranged in the accommodating space and is located on the inner side of the plate-shaped side wall when seen from the upper direction and the lower direction.

9. The electrical connector assembly of claim 8, wherein: the plate-shaped side wall comprises a baffle part for shielding the accommodating space and side plate parts extending from the longitudinal two sides of the baffle part and fixedly embedded on the outer side surface of the side wall.

10. The electrical connector assembly of claim 9, wherein: the last reason of the surface of baffle portion forms the guide surface, the inside tear of side plate portion is formed with to inlay and locates the first leg of end wall, it is a pair of the vertical both sides of platelike side wall be connected with one respectively between the side plate portion inlay in the roof of the upper surface of end wall, it is a pair of the roof with the junction of side plate portion forms arc guide portion, roof downwardly extending form inlay solid in the end plate portion of the terminal surface of end wall, the end plate portion with the junction of roof forms arc guide portion, the inside tear of end plate portion is formed with to inlay and locates the second leg of end wall, the outside extension of lower extreme of baffle portion forms the third leg.