Electrical connector components

Abstract

An electrical connector assembly comprises a first electrical connector mounted on a first circuit board and a second electrical connector mounted on a second circuit board and engaged with the first electrical connector in an up-and-down direction, the first electrical connector comprising a first insulating body and two rows of first conductive terminals fixed on the first insulating body, the first insulating body having a first base and a tongue, the second electrical connector comprising a second insulating body and two rows of second conductive terminals fixed on the second insulating body, the second insulating body having a second base, a pair of longitudinal side walls and a pair of end walls, the pair of side walls and the pair of end walls forming a slot for the tongue to be inserted, the first conductive terminal having a first plate-like contact surface embedded in the mating surface of the tongue and a first welding portion extending outward from the lower end of the first plate-like contact surface to the first base, the second conductive terminal having a second plate-like contact surface embedded in the inner surface of the side wall and a second welding portion extending outward from the lower end of the second plate-like contact surface to the second base, when the first electrical connector and the second electrical connector are mated with each other, only the first plate-like contact surface and the second plate-like contact surface of the first conductive terminal and the second conductive terminal are in contact with each other. The conductive terminals of the two electrical connectors have a simple structure and a short connection path between the conductive terminals, which can not only effectively reduce high-frequency insertion loss, but also effectively reduce the volume of the electrical connector, which is in line with the development trend of miniaturization of electrical connectors. In addition, the embedded first and second plate-shaped contact surfaces are not easily broken when mated.

Description

[Technical field]

[0001] The present invention relates to a board-to-board electrical connector assembly mounted on a circuit board and mated with each other. [Background technology]

[0002] Chinese invention patent No. CN106329248B discloses an electrical connector assembly mounted on a circuit board, comprising a first electrical connector and a second electrical connector that engages with the first electrical connector in the vertical direction. The first electrical connector comprises a first insulating body extending in the longitudinal direction and two rows of first conductive terminals arranged in the longitudinal direction and fixed to the first insulating body. The first insulating body comprises a base, a tongue protruding upward from the base, and a peripheral wall surrounding the tongue and forming an annular slot with the tongue. The second electrical connector comprises a second insulating body extending in the longitudinal direction and two rows of second conductive terminals arranged in the longitudinal direction and fixed to the second insulating body. The second insulating body comprises a base and a peripheral portion protruding upward from the base to form a slot. The two rows of second conductive terminals are respectively arranged on a pair of side portions of the peripheral portion. When the two electrical connectors are docked, the tongue is inserted into the slot and the peripheral portion is inserted into the annular slot. The first conductive terminal includes a first welding portion, an "n"-shaped first retaining portion extending from the first welding portion and disposed on the side wall of the peripheral wall, and a "u"-shaped elastic contact arm disposed in the annular slot and having a double-sided contact portion, and the second conductive terminal includes a second welding portion, an "n"-shaped docking portion extending from the second retaining portion and retained on the side and having a double-sided contact portion. However, when the two electrical connectors are docked, the "n"-shaped docking portion is inserted into the "u"-shaped elastic contact arm, and the two are in double-sided contact with each other. The conduction path between the terminals of the two electrical connectors is long, which increases the high-frequency insertion loss and causes the two electrical connectors to be larger in size, which does not conform to the development trend of miniaturization of electrical connectors.

[0003] Therefore, it is necessary to improve the existing electrical connector assembly to overcome the above defects. [Summary of the invention]

[0004] The technical problem to be solved by the present invention is to provide a board-to-board electrical connector assembly with a shorter terminal connection path, a simple structure and mutually mating conductive terminals that can be matched stably and reliably.

[0005] The object of the present invention is achieved through the following technical solutions: an electrical connector assembly, comprising a first electrical connector and a second electrical connector engaged with the first electrical connector in the up-down direction, the first electrical connector comprising a first insulating body extending in the longitudinal direction, two rows of first conductive terminals arranged in the longitudinal direction and fixed to the first insulating body, the first insulating body having a first base and a tongue extending upward from the first base, the second electrical connector comprising a second insulating body extending in the longitudinal direction and two rows of second conductive terminals arranged in the longitudinal direction and fixed to the second insulating body, the second insulating body having a second base, a pair of side walls extending in the longitudinal direction and extending upward from the second base, and a pair of longitudinally extending side walls extending upward from the second base. A pair of end walls connected to both ends, a pair of side walls and a pair of end walls are arranged to form a slot for the tongue to be inserted, the two rows of the first conductive terminals respectively have a first plate-like contact surface embedded in the mating surface on both sides of the tongue and a first welding portion extending laterally outward from the lower end of the first plate-like contact surface to the first base, the two rows of the second conductive terminals respectively have a second plate-like contact surface embedded in the inner surface of the pair of side walls and a second welding portion extending laterally outward from the lower end of the second plate-like contact surface to the second base, when the first electrical connector and the second electrical connector are docked with each other, only the first plate-like contact surface and the second plate-like contact surface of the first conductive terminal and the second conductive terminal are in contact with each other.

[0006] Furthermore, two rows of the first conductive terminals are integrally formed on the first insulating body, and the two rows of the first conductive terminals also 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, and the first conductive terminals are roughly in a "Z" shape. Two rows of the second conductive terminals are integrally formed on the second insulating body, and the two rows of the second conductive terminals also 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 roughly in a "コ" shape.

[0007] Furthermore, the first electrical connector also 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 between the tongue portion, the peripheral wall includes a pair of side portions extending longitudinally and a pair of end portions connecting the longitudinal ends of the pair of side portions, and the first welding portions of the two rows of the first conductive terminals are respectively located on the inner side of the pair of side portions.

[0008] Furthermore, the metal shell is also provided with a pair of bottom plates connecting the lower ends of the longitudinal sides of the side portions to each other, the pair of the bottom plates extending upward to form a pair of plate-like embedded portions integrally formed at the longitudinal ends of the first insulating body, a through frame opening is formed between the pair of the bottom plates in the longitudinal direction, and the pair of the plate-like embedded portions are located on the outer sides of the longitudinal ends of the two rows of the first conductive terminals.

[0009] Further, each of the end portions includes a first half end portion integrally connected to one of the side portions and a second half end portion integrally connected to the other of the side portions, the free end of the first half end portion protrudes to form a protrusion, and the free end of the second half end portion is recessed to form a groove portion, the protrusion portion and the groove portion are snap-fitted and fixed, the bottom plate extends longitudinally outward to form a pair of limiting portions located below the end portion, the first half end portion and the second half end portion respectively extend downward to form an extension portion located between the pair of limiting portions, and the metal shell is formed by bending a single plate body.

[0010] Furthermore, 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 is convex to form a contact protrusion, and the other is concave to form a contact concave portion for the contact protrusion to buckle into, the upper end of the contact protrusion forms a guiding inclined surface, the first plate-shaped contact surface or the second plate-shaped contact surface is concave to form a groove on the opposite side of the contact protrusion, and the first insulating body or the second insulating body has an embedded protrusion embedded in the groove during molding.

[0011] Furthermore, the outer side surfaces of a pair of the side walls of the second electrical connector are recessed inwardly in the arrangement area of ​​the second conductive terminals to form an accommodation space that passes through the upper and lower surfaces of the side walls. When viewed from the top and bottom directions, the second welding portion is arranged in the accommodation space.

[0012] Furthermore, the second electrical connector also includes a metal shell integrally formed on the second insulating body and abutting the metal shell, the metal shell including a pair of plate-like side walls respectively arranged on the outer side surfaces of a pair of the side walls, the outer side surfaces of the pair of side walls are recessed inwardly in the arrangement area of ​​the second welding portion of the second conductive terminal to form a accommodating space that passes through the upper and lower surfaces of the side walls, and when viewed from the top and bottom directions, the second welding portion is arranged in the accommodating space and is located on the inner side of the plate-like side wall, and when the second electrical connector is mated with the first electrical connector, the pair of side portions of the metal shell are located on the outer side of the plate-like side wall and abut against the plate-like side wall.

[0013] Furthermore, the plate-shaped side wall includes a baffle portion for shielding the accommodating space and a side plate portion extending from both longitudinal sides of the baffle portion and embedded in the outer side surface of the side wall.

[0014] Furthermore, the upper edge of the outer surface of the baffle portion forms a guide surface, the side plate portion is torn inwardly to form a first weld leg embedded in the end wall, a pair of side plate portions on both sides of the plate-like side wall in the longitudinal direction are respectively connected with a top plate embedded in the upper surface of the end wall, a pair of connections between the top plate and the side plate portions form an arc-shaped guide portion, the top plate extends downward to form an end plate portion embedded in the end surface of the end wall, the connection between the end plate portion and the top plate forms an arc-shaped guide portion, the end plate portion is torn inwardly to form a second weld leg embedded in the end wall, and the lower end of the baffle portion extends outwardly to form a third weld leg.

[0015] Compared with the prior art, in the electrical connector assembly of the present invention, the terminal structure of the first conductive terminal of the first electrical connector and the second conductive terminal of the second electrical connector is simple so that the connection path between the first and second conductive terminals is short, which can not only effectively reduce high-frequency insertion loss, but also effectively reduce the volume of the electrical connector, which is in line with the development trend of miniaturization of electrical connectors. In addition, the first and second plate-shaped contact surfaces embedded in the first and second conductive terminals are not easy to be inserted into each other when mating, and the rigid first and second plate-shaped contact surfaces of the first and second conductive terminals have good structural stability.

Brief Description of the Drawings

[0016] Figure 1 It is a three-dimensional diagram of the first electrical connector and the second electrical connector of the present invention being separated.

[0017] Figure 2 yes Figure 1 Another perspective of the stereogram.

[0018] Figure 3 It is an exploded view of the first electrical connector of the present invention.

[0019] Figure 4 yes Figure 3 Exploded view from another angle.

[0020] Figure 5 It is a top view of the first electrical connector of the present invention.

[0021] Figure 6 It is a front view of the first electrical connector of the present invention.

[0022] Figure 7 It is a side view of the first electrical connector of the present invention.

[0023] Figure 8 is an exploded view of the second electrical connector of the present invention.

[0024] Fig. 9 yes Figure 8 Exploded view from another angle.

[0025] Fig.10 is a top view of the second electrical connector of the present invention.

[0026] Fig.11 It is a front view of the second electrical connector of the present invention.

[0027] Fig.12 is a side view of the second electrical connector of the present invention.

[0028] Fig.13 It is a three-dimensional diagram of the first electrical connector and the second electrical connector of the present invention being engaged with each other.

[0029] Fig.14 yes Fig.13 Another perspective of the stereogram.

[0030] Fig.15 yes Fig.14 Section view along line AA.

[0031] The following specific implementation manner will further illustrate the present invention in conjunction with the above-mentioned drawings. [Specific implementation method]

[0032] See also Figures 1 to 15 As shown, the board-to-board electrical connector assembly 1000 of the present invention comprises 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 engaged with the first electrical connector 100 in the up-down direction. The first electrical connector 100 comprises a first insulating body 1 extending in the longitudinal direction, two rows of first conductive terminals 2 arranged in the longitudinal direction and fixed to the first insulating body 1, and a metal shell 3 arranged around the first insulating body 1. Preferably, the first conductive terminals 2 are integrally formed with the first insulating body 1. The second electrical connector 200 comprises a second insulating body 4 extending in the longitudinal direction, two rows of second conductive terminals 5 arranged in the longitudinal direction and fixed to the second insulating body 4, and a metal shell 6 arranged around the periphery of the second insulating body 4. Preferably, the second conductive terminals 5 are integrally formed with the second insulating body 4.

[0033] Ginseng Figures 3 to 7As shown, the first insulating body 1 of the first electrical connector 100 has a first base 11 and a tongue 12 extending upward from the first base 11. The circumferential dimension of the first base 11 is larger than the circumferential dimension of the tongue 12. The two lateral surfaces of the tongue 12 perpendicular to the longitudinal direction are mating surfaces 121. The two rows of the first conductive terminals 2 respectively have a first plate-shaped contact surface 21 embedded in the lateral mating surfaces 121 on both sides of the tongue 12 and a first welding portion 22 extending outwardly from the lower end of the first plate-shaped contact surface 21 to the first base 11. Since the first plate-shaped contact surface 21 is embedded in the tongue 12, the first plate-shaped contact surface 21 will not move relative to the tongue plate 12. The embedding does not specifically refer to the embedding method through integral molding, but can also be embedded in the tongue 12 through interference clamping. The upper end of the first plate-shaped contact surface 21 of each row of the first conductive terminals 2 extends toward the upper surface 122 of the tongue 12 to form a first arc-shaped guide surface 23, and the first conductive terminal 2 is roughly in a "Z" shape. The first arc-shaped guide surface 23 can not only be used to guide the second conductive terminal 5 of the second electrical connector 200 to achieve docking and prevent the second conductive terminal 5 from wearing the tongue 12, but also increase the bonding force between the first conductive terminal 2 and the insulating body 1. It is worth mentioning that in order to further strengthen the bonding force between the first conductive terminal 2 and the first insulating body 1, the first arc-shaped guide surface 23 can be bent downward to form a bending portion (not shown) further embedded from the upper surface 122 of the tongue 12. It should be clarified that in the present invention, the first conductive terminal 2 may also not be provided with the first arc-shaped guide surface 23 and the bending portion (not shown).

[0034] The metal shell 3 is preferably integrally formed and fixed to the first insulating body 1, 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 separate 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 the longitudinal ends of the pair of side portions 311, and the pair of bottom plates 32 connect the longitudinal lower ends of the pair of side portions 311 to each other. The first welding portions 22 of the two rows of the first conductive terminals 2 are respectively located on the inner side of the pair of side portions 311 and are spaced a certain distance from the side portions 311 in the transverse direction. The pair of bottom plates 32 extend upward to form a pair of plate-shaped embedded portions 321 integrally formed at the longitudinal ends of the first insulating body 1, and the pair of embedded portions 321 are located on the outer sides of the longitudinal ends of the two rows of the first conductive terminals 2. The plate-shaped embedded portion 321 extends upward from the first base 11 into the tongue portion 12. The plate-shaped embedded portion 321 is generally in a "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 through the plate-shaped embedded 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. The portion of the first insulating body 1 located between the pair of plate-shaped embedded portions 321 is arranged in the area of ​​the through frame opening 33. The lower ends of the pair of side portions 311 extend downward in an area corresponding to the first soldering portion 22 to form soldering feet 3111 soldered to the first circuit board (not shown), and the lower ends of the pair of side portions 311 are recessed upward in an area corresponding to the first soldering portion 22 to form inspection windows 3112 for inspecting the first soldering portion 22 from the side.

[0035] 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, the free end of the first half end portion 3121 protrudes to form a convex portion 31211, the free end of the second half end portion 3122 is recessed to form a concave portion 31221, the convex portion 31211 and the concave portion 31221 are engaged and fixed so that the first half end portion 3121 and the second half end portion 3122 together constitute the end portion 312. Preferably, the contours of the convex portion 31211 and the concave portion 31221 are substantially spherical. The bottom plate 32 extends outward longitudinally 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 extension portion 313 located between the pair of limiting portions 322. The pair of limiting portions 322 are used to stop the extension 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 limiting portion 322 can be used for welding the metal shell 3 to the first circuit board (not shown). In addition, in order to reliably combine the first half end portion 3121 and the second half end portion 3122, welding can be performed at the joint between the two. It is particularly important to point out that in the present invention, the metal shell 3 is formed by bending a single plate body. On the contrary, the metal shell 3 is a single plate body component after being unfolded. In this way, the metal shell 3 has a higher structural strength and is easy to manufacture.

[0036] Combined with reference Figures 8 to 15As shown, 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 in the longitudinal direction, and a pair of end walls 43 connecting the longitudinal ends of the pair of side walls 42. The pair of side walls 42 and the pair of end walls 43 are arranged 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 surface 420 of the pair of side walls 42, and a second welding portion 52 extending outwardly from the lower end of the second plate-shaped contact surface 51 to the second base 41. Since the second plate-shaped contact surface 51 is embedded in the side wall 42, the second plate-shaped contact surface 51 will not move relative to the side wall 42, and the embedding does not specifically refer to the embedding method through integral molding, and can also be embedded in the side wall 42 through interference clamping. The upper end of the second plate-shaped contact surface 51 of each row of the second conductive terminals 5 further extends toward the upper surface of the side wall 42 to form a second arc-shaped guide surface 53. The second conductive terminals 5 are roughly in the shape of a "コ" character. The second arc-shaped guide surface 53 is not only used to cooperate with the first arc-shaped guide surface 23 of the first conductive terminal 2 as a guide for each other, but also can increase the bonding force between the second conductive terminal 5 and the second insulating body 4. Of course, in order to further strengthen the bonding force between the second conductive terminal 5 and the second insulating body 4, the second arc-shaped guide surface 53 can also be bent downward to form a bending portion (not shown). It should be clear that in the present invention, the second conductive terminal 5 may also not be provided with a second arc-shaped guide surface 53 and a bending portion (not shown). When the first electrical connector 100 and the second electrical connector 200 are docked with each other, the tongue plate 12 is inserted into the slot 44, a pair of the side walls 42 and a pair of the end walls 43 are inserted into the annular slot 30, and the first conductive terminal 2 is docked with the second conductive terminal 5. Since 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, 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, 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, which not only reduces the high-frequency insertion loss of the two electrical connectors, but also reduces the volume of the two electrical connectors, thereby reducing the area occupied by the two electrical connectors on the two circuit boards (not shown). Considering the reliability of the docking 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 is convexly extended with a contact protrusion 511, and the other is concavely provided with a contact concave portion 211 for the contact protrusion 511 to be buckled into.The upper end of the contact protrusion 511 forms a guiding slope 5111, and the setting of the guiding slope 5111 can facilitate the contact protrusion 511 to be buckled into the contact recess 211. In the present invention, the first conductive terminal 2 and the second conductive terminal 5 are formed by stamping, and the second plate-shaped contact surface 51 of the second conductive terminal protrudes to form the contact protrusion 511. The contact protrusion 511 is formed by punching the opposite side of the second plate-shaped contact surface 51 toward the second plate-shaped contact surface 51, so the second plate-shaped contact surface 51 is recessed on the opposite side of the contact protrusion 511 to form a groove 512. Correspondingly, the inner surface 420 of the side wall 42 has an embedded protrusion 4201 embedded in the groove 512 during molding at the position corresponding to the groove 512, so that the second conductive terminal 5 can be reliably combined with the side wall of the second insulating body 4.

[0037] The outer side surfaces 421 of the pair of side walls 42 of the second electrical connector 200 are recessed inwardly in the arrangement area of ​​the second conductive terminals 5 to form a recessed accommodation space 4211 penetrating the upper and lower surfaces of the side walls 42. When viewed from the upper and lower directions, the second welding portion 52 of the second conductive terminal 5 is disposed in the accommodation space 4211. Compared with extending the second welding portion 52 outward from the side wall, disposing the second welding portion 52 in the recessed accommodation space 4211 of the side wall 42 can effectively reduce the overall length of the second conductive terminal 5, thereby further reducing the conduction path between the second conductive terminal 5 and the first conductive terminal 2. The metal shell 6 of the second electrical connector 200 is integrally formed with the second insulating body 4, and the metal shell 6 includes a pair of plate-like side walls 61 respectively embedded in the outer side surfaces 421 of the pair of side walls 42, and the pair of plate-like side walls 61 include a baffle portion 611 for shielding the accommodating space 4211 and a side plate portion 612 extending from both longitudinal sides of the baffle portion 611 and embedded in the outer side surfaces 421 of the side walls 42. When viewed from the top and bottom directions, the second welding portion 52 is disposed in the accommodating space 4211 and is located inside the baffle portion 611 of the plate-like side wall 61. When the second electrical connector 200 is mated with the first electrical connector 100, the pair of side portions 311 of the metal shell 3 are located outside the plate-like side wall 61 and abut against the plate-like side wall 61. A top plate 62 is connected between the side plate portions 612 on both sides of the plate-shaped side walls 61, and is embedded in the upper surface 431 of the end wall 43. 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 connected to each other, the metal shell 3 is covered and abutted against the outer side of the metal shell 6. The connection between the top plate 62 and the side plate portion 612 forms an arc-shaped guide portion 64, the connection between the end plate portion 63 and the top plate 62 forms an arc-shaped guide portion 65, and the upper edge of the outer surface of the baffle portion 611 forms a guide surface 6111, so that when the first electrical connector 100 and the second electrical connector 200 are connected to each other, the metal shell 3 can be easily covered and finally abutted against the outer side of the metal shell 6 through the guidance of the arc-shaped guide portions 64, 65 and the guide 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.

[0038] In order to reliably solder the second electrical connector 200 to the second circuit board (not shown), the side plate portion 612 is torn inwardly to form a first welding leg 6121 embedded in the end wall 43 and extending downwardly out of the end wall 43, the end plate portion 63 is torn inwardly to form a second welding leg 631 embedded in the end wall 43 and extending downwardly out of the end wall 43, and the lower end of the baffle portion 611 extends outwardly to form a third welding leg 6112. In order to reliably combine the metal shell 3 with the metal housing 6, at least one of the plate-shaped side wall 61 and the baffle portion 611 of the metal housing 6 is protruding with a clamping point 64, and at least one of the side portion 311 and the end portion 312 of the metal shell 3 is recessed with a clamping groove 315 that cooperates with the clamping point 64. The lower end of the baffle portion 611 is recessed upwardly to form an inspection window 6113 for laterally inward inspection of the second welding portion 52. In addition, the side portion 311 of the metal shell 3 of the first electrical connector 100 is provided with a recess 3113 for accommodating the third welding leg 6112 at a position corresponding to the third welding leg 6112 of the metal shell 6 of the second electrical connector. When the two electrical connectors are mated, the third welding leg 6112 is accommodated in the recess 3113 to limit the relative movement of the electrical connectors in the longitudinal direction.

[0039] The above descriptions are only some embodiments of the present invention, not all embodiments. Any equivalent changes made to the technical solution of the present invention by ordinary technicians in this field after reading the specification of the present invention are covered by the claims of the present invention.

Claims

1. An electrical connector assembly, comprising a first electrical connector and a second electrical connector engaged with the first electrical connector in a vertical direction, the first electrical connector comprising a first insulating body extending in a longitudinal direction, two rows of first conductive terminals arranged in a longitudinal direction and fixed to the first insulating body, the first insulating body having a first base and a tongue extending upward from the first base, the second electrical connector comprising a second insulating body extending in a longitudinal direction and two rows of second conductive terminals arranged in a longitudinal direction and fixed to the second insulating body, the second insulating body having a second base, a pair of side walls extending in a longitudinal direction and extending upward from the second base, and a pair of end walls connecting the longitudinal ends of the pair of side walls, the pair of side walls and the pair of end walls surrounding a slot for the tongue to be inserted into, characterized in that: The two rows of the first conductive terminals respectively have a first plate-shaped contact surface embedded in the docking surface on both sides of the tongue and a first welding portion extending laterally outward from the lower end of the first plate-shaped contact surface to the first base. The two rows of the second conductive terminals respectively have a second plate-shaped contact surface embedded in the inner surface of a pair of the side walls and a second welding portion extending laterally outward from the lower end of the second plate-shaped contact surface to the second base. When the first electrical connector and the second electrical connector are docked with each other, only the first plate-shaped contact surface and the second plate-shaped contact surface of the first conductive terminal and the second conductive terminal are in contact. The first electrical connector also includes a metal shell integrally formed on the first insulating body, and the metal shell includes a peripheral side of the first base and a second welding portion formed between the tongue. The peripheral wall of the annular slot comprises a pair of side portions extending in the longitudinal direction and a pair of end portions connecting the longitudinal ends of the pair of side portions, the metal shell is also provided with a pair of bottom plates connecting the lower ends of the longitudinal sides of the side portions to each other, each of the end portions comprises a first half end portion integrally connected to one of the side portions and a second half end portion integrally connected to 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 recessed to form a groove portion, the protruding portion is fixedly engaged with the groove portion, the bottom plate extends longitudinally outward 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 downward to form an extension portion located between the pair of limiting portions, and the metal shell is formed by bending a single plate body.

2. The electrical connector assembly according to claim 1, wherein: The two rows of the first conductive terminals are integrally formed on the first insulating body, and the two rows of the first conductive terminals also 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, and the first conductive terminals are roughly in a "Z" shape. The two rows of the second conductive terminals are integrally formed on the second insulating body, and the two rows of the second conductive terminals also 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 roughly in a "コ" shape.

3. The electrical connector assembly according to claim 1, wherein: The first welding portions of the two rows of the first conductive terminals are respectively located at inner sides of a pair of the side portions.

4. The electrical connector assembly according to claim 1, wherein: A pair of the bottom plates extend upward to form a pair of plate-like embedded parts integrally formed at the longitudinal ends of the first insulating body, a through frame opening is formed between the pair of the bottom plates in the longitudinal direction, and the pair of the plate-like embedded parts are located on the outer sides of the longitudinal ends of the two rows of the first conductive terminals.

5. The electrical connector assembly according to claim 1, wherein: The first conductive terminal is integrally formed on the first insulating body, and 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 is convex to form a contact protrusion, and the other is concave to form a contact concave portion for the contact protrusion to buckle into. The upper end of the contact protrusion forms a guiding inclined surface. The first plate-shaped contact surface or the second plate-shaped contact surface is concave to form a groove on the opposite side of the contact protrusion. The first insulating body or the second insulating body has an embedded protrusion embedded in the groove during molding.

6. The electrical connector assembly according to claim 1, wherein: The outer side surfaces of a pair of the side walls of the second electrical connector are recessed inwardly in the arrangement area of ​​the second conductive terminals to form an accommodation space that passes through the upper and lower surfaces of the side walls. When viewed from the top and bottom directions, the second welding portion is arranged in the accommodation space.

7. The electrical connector assembly according to claim 3, wherein: The second electrical connector also includes a metal shell integrally formed on the second insulating body and abutting against the metal shell, the metal shell including a pair of plate-like side walls respectively arranged on the outer side surfaces of a pair of the side walls, the outer side surfaces of the pair of side walls are recessed inwardly in the arrangement area of ​​the second welding portion of the second conductive terminal to form a accommodating space that passes through the upper and lower surfaces of the side walls, and when viewed from the top and bottom directions, the second welding portion is arranged in the accommodating space and is located on the inner side of the plate-like side wall, and when the second electrical connector is mated with the first electrical connector, the pair of side portions of the metal shell are located on the outer side of the plate-like side wall and abut against the plate-like side wall.

8. The electrical connector assembly according to claim 7, wherein: The plate-shaped side wall comprises a baffle portion for shielding the accommodating space and a side plate portion extending from both longitudinal sides of the baffle portion and embedded in the outer side surface of the side wall.

9. The electrical connector assembly according to claim 8, wherein: The upper edge of the outer surface of the baffle portion forms a guide surface, the side plate portion is torn inwardly to form a first weld leg embedded in the end wall, a pair of side plate portions at both longitudinal sides of the plate-like side wall are respectively connected with a top plate embedded in the upper surface of the end wall, a pair of connections between the top plate and the side plate portions form an arc-shaped guide portion, the top plate extends downward to form an end plate portion embedded in the end surface of the end wall, the connection between the end plate portion and the top plate forms an arc-shaped guide portion, the end plate portion is torn inwardly to form a second weld leg embedded in the end wall, and the lower end of the baffle portion extends outwardly to form a third weld leg.

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