TWI899969B - Electrical connector with terminals in upper row and lower row having parallel connection - Google Patents

Abstract

An electrical connector with terminals in adjacent rows having parallel connection is disclosed. The electrical connector includes an insulation structure, a plurality of terminals and a plurality of shielding members. The terminals are joined to the insulation structure, and arranged in a first row and a second row parallel with the first row. The shielding members are separated and despised between the first row and the second row. At least one first regular signal terminal of the first row and at least one second regular signal terminal of the second row prop against at least one shielding member, whereby the at least one first regular signal terminal and the at least one second regular signal terminal are parallel connected.

Description

Upper and lower terminal parallel type electrical connector

The present invention relates to the technical field of electrical connectors, and more particularly to an upper-lower-row parallel-type electrical connector in which signal terminals in upper and lower rows of terminals are connected in parallel by abutting against a middle partition.

The USB Type-C connector can transmit standard USB 2.0 signals (transmission speeds of 480Mbps) and high-speed USB 3.1 signals (transmission speeds of 5Gbps and above). The USB Type-C receptacle connector forms an electrical connection with the circuit board. After standard USB 2.0 signals are transmitted to the circuit board via the top and bottom rows of terminals, the lines on the circuit board used to transmit standard USB 2.0 signals are connected in parallel. This allows standard signals to be transmitted to the same location via the parallel wiring structure, regardless of whether the USB Type-C plug connector and the USB Type-C receptacle connector are inserted forward or backward. The standard signal terminals on the plug connector select the top or bottom row of standard signal terminals on the USB Type-C receptacle connector to mate.

The present invention aims to provide a parallel-type electrical connector with upper and lower terminals. Conventional signal terminals are connected in parallel via a shielding spacer, eliminating the need for parallel wiring on the circuit board. This invention also provides an alternative technical solution for transmitting conventional signals when a USB Type-C plug connector and a receptacle connector are mated.

One embodiment of the present invention's upper and lower terminal parallel-type electrical connector includes an insulating structure, a plurality of terminals, and a plurality of shielding spacers. The plurality of terminals are coupled to the insulating structure, each terminal comprising a mating portion, a fixing portion, and a welding portion. The plurality of terminals are arranged in a first terminal row and a second terminal row that are parallel to each other. The first terminal row comprises a first conventional signal terminal pair, a plurality of first power terminals, and a plurality of first ground terminals. The second terminal row comprises a second conventional signal terminal pair, a plurality of second power terminals, and a plurality of second ground terminals. A plurality of shielding spacers are disposed between the first and second terminal rows, and the plurality of shielding spacers are disposed separately from each other. At least one first conventional signal terminal of the first conventional signal terminal pair and at least one second conventional signal terminal of the second conventional signal terminal pair are both in contact with at least one shielding spacer, such that the at least one first conventional signal terminal and the at least one second conventional signal terminal are connected in parallel.

In another embodiment, the fixing portion and the soldering portion of at least one first conventional signal terminal pair or at least one second conventional signal terminal pair abutting against the shielding spacer form a separate structure.

In another embodiment, the insulating structure includes a first insulating member, a second insulating member, and a third insulating member. The terminals of the first terminal row are coupled to the first insulating member, the terminals of the second terminal row are coupled to the second insulating member, and the first and second insulating members are coupled to the third insulating member. The first or second insulating member has a hollow portion, which corresponds to the separation structure between the fixing portion and the welding portion. The insulating structure has a base portion and a tongue portion. The terminal's mating portion is disposed on the tongue portion, and the terminal's fixing portion is coupled to the base portion.

In another embodiment, it further includes a first metal shell, a second metal shell, and a reinforcing member. The first metal shell includes a connecting portion and a surrounding portion. The connecting portion is connected to the base portion of the insulation structure, and the surrounding portion surrounds the tongue portion. The second metal shell is inserted into the surrounding portion, and the reinforcing member surrounds the outer circumference of the surrounding portion.

In another embodiment, the surrounding portion of the first metal shell has at least one first through hole, the reinforcing member has at least one second through hole, and the at least one first through hole is aligned with the at least one second through hole.

In another embodiment, the shielding spacers include a central front spacer, a central rear spacer, two inner spacers, and two outer spacers. The central front spacer and the central rear spacer are aligned front to back along the terminal extension direction. The two inner spacers are disposed on opposite sides of the central front spacer and the central rear spacer, respectively. The two outer spacers are disposed on the outer sides of the two inner spacers, respectively. At least one first conventional signal terminal and at least one second conventional signal terminal connected in parallel abut against the central front spacer or the central rear spacer; the first power terminal and the second power terminal abut against the inner spacer; and the first ground terminal and the second ground terminal abut against the outer spacer. Each outer spacer has a plurality of shielding extensions that extend between the soldered portions of the terminals.

The upper and lower terminal parallel electrical connector of the present invention connects the first conventional signal terminal and the second conventional signal terminal in parallel by abutting the shielding spacer. This allows conventional signals to be transmitted to a predetermined location regardless of whether the plug connector and the receptacle connector are inserted in the forward or reverse direction.

1: Parallel type electrical connector with upper and lower terminals

10: Insulation structure

10a: Engaging boss

10b: Engagement recess

10c: Base

10d: Tongue plate

11: First insulation component

12: Second insulation component

13: Third insulation component

20:Terminal

20a: First regular signal terminal pair (first regular signal terminal)

20b: First functional terminal

20c: First power terminal

20d: First high-frequency signal terminal pair

20e: First ground terminal

20f: Second regular signal terminal pair (second regular signal terminal)

20g: Second functional terminal

20h: Second power terminal

20i: Second highest signal terminal pair

20j: Second ground terminal

21: Docking section

22: Fixed part

23: Welding Section

30: Shielding spacer

31: Center front partition

32: Middle rear partition

33: Inner spacer

34: External spacer

35: Insulation components

40: First metal shell

41: Junction

42: Around the part

50: Second metal shell

51: Engaging Shrapnel

60: Strengthening components

61: Second through hole

111: Hollow part

311: Front spacer body

312: First contact with the shrapnel

313: Second contact shrapnel

321: Rear spacer body

322: Third contact shrapnel

323: Fourth contact shrapnel

331: Give up the slot

341: Shield extension

421: Engagement hole

422: First through hole

A: First terminal row

B: Second terminal row

L1: First Direction

L2: Second Direction

L3: Third Direction

P: Circuit board

Figure 1 is a perspective view of an embodiment of the upper and lower row terminal parallel type electrical connector of the present invention.

Figure 2 is a perspective view of the upper and lower row terminal parallel type electrical connector shown in Figure 1 from another angle.

Figure 3 is a perspective exploded view of the upper and lower row terminal parallel type electrical connector shown in Figure 1.

Figure 4 is a perspective exploded view of the upper and lower row terminal parallel type electrical connector shown in Figure 2.

Figure 5 is a perspective view of the arrangement relationship between the terminals and the shielding spacer of the upper and lower terminal parallel type electrical connector of Figure 1.

Figure 6 is a three-dimensional diagram of Figure 5 from another angle.

Figures 7 to 14 are schematic diagrams illustrating the assembly process of the upper and lower row terminal parallel type electrical connector of Figure 1.

Referring to Figures 1, 2, 3, and 4, an embodiment of the present invention's upper and lower row terminal parallel-type electrical connector is shown. The upper and lower row terminal parallel-type electrical connector 1 of this embodiment includes an insulating structure 10, a plurality of terminals 20, a plurality of shielding spacers 30, a first metal housing 40, a second metal housing 50, and a reinforcing member 60. A plurality of terminals 20 are coupled to an insulating structure 10 and arranged in parallel, first and second terminal rows A and B. A plurality of shielding spacers 30 are disposed between the first and second terminal rows A and B. A first metal housing 40 is coupled to the insulating structure 10 and surrounds the terminals 20. A second metal housing 50 is assembled within the first metal housing 40, and a reinforcing member 60 is assembled to the exterior of the first metal housing 40. The upper and lower terminal parallel-type electrical connector 1 of this embodiment is a receptacle electrical connector.

Each terminal 20 includes a mating portion 21, a fixing portion 22, and a soldering portion 23. The fixing portion 22 is bonded to the insulating structure 10 for positioning. The mating portion 21 and the soldering portion 23 are connected to the ends of the fixing portion 22, respectively. The mating portion 21 is used to mate with a terminal of a plug connector to form an electrical connection, and the soldering portion 23 is used to solder to a circuit board P. In this embodiment, the circuit board P is a flexible circuit board (FPCB), but is not limited to FPCBs. The direction in which the terminals 20 extend is defined as a first direction L1. The plurality of terminals 20 are arranged in parallel along a second direction L2, forming a first terminal row A and a second terminal row B. The terminals 20 in either the first terminal row A or the second terminal row B are arranged in a row along a third direction L3.

Referring to Figures 5 and 6 , the terminals 20 of the first terminal array A include a first normal signal terminal pair 20a, two first functional terminals 20b, two first power terminals 20c, two first high-frequency signal terminal pairs 20d, and two first ground terminals 20e. The two first functional terminals 20b are located on opposite sides of the first normal signal terminal pair 20a, the two first power terminals 20c are located outside the two first functional terminals 20b, the two first high-frequency signal terminal pairs 20d are located outside the two first power terminals 20c, and the two first ground terminals 20e are located outside the two first high-frequency signal terminal pairs 20d. The terminals 20 of the second terminal row B include a second normal signal terminal pair 20f, two second functional terminals 20g, two second power terminals 20h, two second high-frequency signal terminal pairs 20i, and two second ground terminals 20j. The two second functional terminals 20g are located on opposite sides of the second normal signal terminal pair 20f, the two second power terminals 20h are located outside the two second functional terminals 20g, the two second high-frequency signal terminal pairs 20i are located outside the two second power terminals 20h, and the two second ground terminals 20j are located outside the two second high-frequency signal terminal pairs 20i. The configuration of the first terminal row A and the second terminal row B complies with USB Type-C electrical connector specifications.

The soldering portions 23 of the terminals 20 of the first terminal row A and the soldering portions 23 of the terminals 20 of the second terminal row B are arranged in a row along the third direction L3. The arrangement is such that the first ground terminal 20e, the first high-frequency signal terminal pair 20d, and the first power terminal 20c on the left side of the first terminal row A and the second ground terminal 20j, the second high-frequency signal terminal pair 20i, and the second power terminal 20h on the left side of the second terminal row B are arranged side by side on the left side of the soldering portion 23 row; the first ground terminal 20e, the first high-frequency signal terminal 20d, and the first power terminal 20 on the right side of the first terminal row A are arranged side by side on the left side of the soldering portion 23 row. The group consisting of the second ground terminal 20j, the second high-frequency signal terminal 20i, and the second power terminal 20h on the right side of the second terminal row B are arranged side by side on the right side of the soldering portion 23 row. The group consisting of the first normal signal terminal pair 20a and the first functional terminal 20b of the first terminal row A and the group consisting of the second normal signal terminal pair 20f and the second functional terminal 20g of the second terminal row B are arranged side by side in the middle of the soldering portion 23 row.

Referring to Figure 7 , the shielding partition 30 includes a central front partition 31, a central rear partition 32, two inner partitions 33, and two outer partitions 34. The central front partition 31 and the central rear partition 32 are aligned front to back along the first direction L1. The two inner partitions 33 are disposed on opposite sides of the central front partition 31 and the central rear partition 32, respectively. The two outer partitions 34 are disposed on the outer sides of the two inner partitions 33.

The central front partition 31 comprises a front partition body 311, a first contact spring 312, and a second contact spring 313. The first contact spring 312 and the second contact spring 313 are located on opposite sides of the front partition body 311 in the third direction L3, and are staggered in the first direction L1. The first contact spring 312 extends toward the first terminal row A in the second direction L2, while the second contact spring 313 extends toward the second terminal row B in the second direction L2.

The middle rear spacer 32 comprises a rear spacer body 321, a third contact spring 322, and a fourth contact spring 323. The third and fourth contact springs 322, 323 are located on opposite sides of the rear spacer body 321 in the third direction L3, and are staggered in the first direction L1. The third contact spring 322 extends toward the second terminal row B in the second direction L2, while the fourth contact spring 323 extends toward the first terminal row A in the second direction L2.

As shown in Figures 5 and 6, the first normal signal terminal 20a on the left side of the first terminal row A abuts the fourth contact spring 323, the first normal signal terminal 20a on the right side of the first terminal row A abuts the first contact spring 312, the second normal signal terminal 20f on the left side of the second terminal row B abuts the second contact spring 313, and the second normal signal terminal 20f on the right side of the second terminal row B abuts the third contact spring 322. In this way, the first normal signal terminal 20a on the left side of the first terminal row A and the second normal signal terminal 20f on the right side of the second terminal row B both abut against the middle front spacer 31, forming a parallel connection structure. Similarly, the first normal signal terminals 20a on the right side of the first terminal row A and the second normal signal terminals 20f on the left side of the second terminal row B both abut the middle rear spacer 32, forming a parallel connection. The left and right sides described above are based on the structures viewed from the drawings shown in Figures 5, 6, and 7.

Because the first conventional signal terminals 20a on the left side of the first terminal row A and the second conventional signal terminals 20f on the right side of the second terminal row B form a parallel structure, and the first conventional signal terminals 20a on the right side of the first terminal row A and the second conventional signal terminals 20f on the left side of the second terminal row B form a parallel structure, the fixed portions 22 and soldering portions 23 of the two first conventional signal terminals 20a of the first terminal row A form a separate structure. The soldering portions 23 corresponding to the two first conventional signal terminals 20a of the first terminal row A do not need to be connected to the wiring on the circuit board P, while the soldering portions 23 corresponding to the two second conventional signal terminals 20f of the second terminal row B are connected to the wiring on the circuit board P.

The above structure connects the first terminal row A, which functions as the first normal signal terminal 20a for D+, and the second terminal row B, which functions as the second normal signal terminal 20f for D+, in parallel. The first terminal row A, which functions as the first normal signal terminal 20a for D-, and the second terminal row B, which functions as the second normal signal terminal 20f for D-, are also connected in parallel. The normal signals transmitted by the first normal signal terminal 20a and the second normal signal terminal 20f have a transmission speed lower than 500 Mbps, complying with the USB 2.0 specification (transmission speed of 480 Mbps).

The front ends of the first power terminal 20c on the left side of the first terminal row A and the front ends of the second power terminal 20h on the left side of the second terminal row B both extend toward the left inner partition 33 and abut against it, forming a parallel connection between the first power terminal 20c on the left side of the first terminal row A and the second power terminal 20h on the left side of the second terminal row B. The front ends of the first power terminal 20c on the right side of the first terminal row A and the second power terminal 20h on the right side of the second terminal row B both extend toward the right inner partition 33 and abut against it, forming a parallel connection between the first power terminal 20c on the right side of the first terminal row A and the second power terminal 20h on the right side of the second terminal row B.

The tips of the first ground terminal 20e on the left side of the first terminal row A and the second ground terminal 20j on the left side of the second terminal row B both extend toward the left outer partition 34 and abut against it, thereby forming a parallel connection between the first ground terminal 20e on the left side of the first terminal row A and the second ground terminal 20j on the left side of the second terminal row B. The tips of the first ground terminal 20e on the right side of the first terminal row A and the second ground terminal 20j on the right side of the second terminal row B both extend toward the right outer partition 34 and abut against it, thereby forming a parallel connection between the first ground terminal 20e on the right side of the first terminal row A and the second ground terminal 20j on the right side of the second terminal row B.

Each external spacer 34 in this embodiment has three shield extensions 341 that extend between the soldering portions 23 of the terminals 20. The three shield extensions 341 on the left external spacer 34 extend to the left of the soldering portion 23 row and are located between the group consisting of the first ground terminal 20e, first high-frequency signal terminal 20d, and first power terminal 20c on the left side of the first terminal row A and the group consisting of the second ground terminal 20j, second high-frequency signal terminal 20i, and second power terminal 20h on the left side of the second terminal row B; and between the group consisting of the second ground terminal 20j, second high-frequency signal terminal 20i, and second power terminal 20h on the left side of the second terminal row B and the group consisting of the first normal signal terminal pair 20a and first functional terminal 20b on the first terminal row A.

The three shield extensions 341 of the right-side outer spacer 34 extend to the right side of the soldering portion 23 row and are located between the group consisting of the first ground terminal 20e, the first high-frequency signal terminal 20d, and the first power terminal 20c on the right side of the first terminal row A and the group consisting of the second ground terminal 20j, the second high-frequency signal terminal 20i, and the second power terminal 20h on the right side of the second terminal row B; and between the group consisting of the second ground terminal 20j, the second high-frequency signal terminal 20i, and the second power terminal 20h on the right side of the second terminal row B and the group consisting of the second normal signal terminal pair 20f and the second functional terminal 20g of the second terminal row B. The shield extensions 341 enhance the electromagnetic shielding effect between the soldering portions 23 of the terminals 20.

Referring to Figure 8 , the shielding spacer 30 of this embodiment is bonded to the insulating member 35 via an insert injection molding process, thereby forming a preliminary positioning of the central front spacer 31, the central rear spacer 32, the two inner spacers 33, and the two outer spacers 34.

Referring to Figure 9 , the terminals 20 of the first terminal row A are bonded to the first insulating member 11 via an insert molding process, while the terminals 20 of the second terminal row B are bonded to the second insulating member 12 via an insert molding process. The first and second insulating members 11, 12 are assembled together and hold the shielding spacer 30 via engaging protrusions 10a and engaging recesses 10b (as shown in Figures 3 and 4 ). The inner spacer 33 has a slot 331 formed on one side near the middle front spacer 31 and the middle rear spacer 32 for the engaging protrusions 10a to pass through. The first insulating member 11 has a hollow portion 111, which corresponds to the separation structure formed by the fixing portion 22 and the welding portion 23 of the two first conventional signal terminals 20a of the first terminal row A.

Referring to Figure 10 , the first insulating member 11 and the terminals 20 of the first terminal row A, the second insulating member 12 and the terminals 20 of the second terminal row B, and the plurality of shielding spacers 30 are assembled to form a third insulating member 13 via an insert injection molding or overmolding process. The third insulating member 13 covers the first and second insulating members 11, 12, and the front ends of the terminals 20 to form the insulating structure 10. The insulating structure 10 comprises a base portion 10c and a tongue portion 10d. The mating portion 21 of the terminal 20 is disposed on the tongue portion 10d, and the fixing portion 22 of the terminal 20 is bonded to the base portion 10c.

Referring to Figure 11 , the first metal housing 40 is assembled to the insulating structure 10. The first metal housing 40 includes a coupling portion 41 and a surrounding portion 42. The coupling portion 41 is coupled to the base portion 10c of the insulating structure 10, and the surrounding portion 42 surrounds the tongue portion 10d.

Referring to Figure 12 , the second metal housing 50 is inserted into the inner circumference of the surrounding portion 42 . The second metal housing 50 engages with the engaging hole 421 of the surrounding portion 42 of the first metal housing 40 via the engaging spring 51 .

Referring to Figures 13 and 14 , the strengthening member 60 is mounted on the outer circumference of the surrounding portion 42 of the first metal shell 40 . The strengthening member 60 is secured to the outer circumference of the surrounding portion 42 via a laser welding process, thereby achieving a structural reinforcement effect.

The surrounding portion 42 of the first metal housing 40 has two first through-holes 422, and the reinforcing member 60 has two second through-holes 61. The two first through-holes 422 are aligned with the two second through-holes 61, thereby enabling engagement with the fixing protrusion structure of the electronic device and securing it to the electronic device.

The upper and lower terminal parallel electrical connector of the present invention connects the first conventional signal terminal and the second conventional signal terminal in parallel by abutting the shielding spacer. This allows conventional signals to be transmitted to a predetermined location regardless of whether the plug connector and the receptacle connector are inserted in the forward or reverse direction.

The upper and lower row terminal parallel-type electrical connector of the present invention can also be applied to USB type C receptacle electrical connectors that do not have high-frequency signal terminals.

However, the above descriptions are merely preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. In other words, any simple equivalent variations and modifications made within the scope of the present invention's patent application and the novel description are still covered by the present invention. Furthermore, no single embodiment or patent application of the present invention is required to achieve all of the objects, advantages, or features disclosed herein. Furthermore, the abstract and title are intended solely to assist in searching patent documents and are not intended to limit the scope of the present invention. Furthermore, terms such as "first" and "second" in this specification or patent application are used solely to name elements or to distinguish between different embodiments or scopes, and are not intended to limit the upper or lower limits on the number of elements.

20a: First conventional signal terminal pair

20b: First functional terminal

20c: First power terminal

20d: First high-frequency signal terminal pair

20e: First ground terminal

22: Fixed part

23: Welding Department

31: Center front partition

32: Middle rear partition

33: Inner spacer

34: External spacer

311: Front spacer body

312: First contact with the shrapnel

321: Rear spacer body

323: Fourth contact shrapnel

341: Shield extension

L1: First Direction

L2: Second Direction

L3: Third Direction

Claims (10)

A parallel-type electrical connector with upper and lower terminals comprises: an insulating structure; a plurality of terminals coupled to the insulating structure, each terminal comprising a mating portion, a fixing portion, and a welding portion, the terminals being arranged in a first terminal row and a second terminal row parallel to each other, the first terminal row comprising a first conventional signal terminal pair, a plurality of first power terminals, and a plurality of first ground terminals, the second terminal row comprising a second conventional signal terminal pair, a plurality of second power terminals, and a plurality of second ground terminals; and a plurality of shielding spacers disposed between the first terminal row and the second terminal row, the shielding spacers being separated from each other. At least one first conventional signal terminal of the first conventional signal terminal pair and at least one second conventional signal terminal of the second conventional signal terminal pair are both in contact with at least one shielding spacer, such that the at least one first conventional signal terminal and the at least one second conventional signal terminal are connected in parallel. As described in claim 1, the upper and lower terminal parallel type electrical connector, wherein the fixing portion and the welding portion of at least one of the first conventional signal terminal pairs or at least one of the second conventional signal terminal pairs abutting against the shielding spacer form a separation structure. An upper and lower row terminal parallel type electrical connector as described in claim 2, wherein the insulating structure includes a first insulating member, a second insulating member and a third insulating member, the terminals of the first terminal row are combined with the first insulating member, the terminals of the second terminal row are combined with the second insulating member, the first insulating member and the second insulating member are combined with the third insulating member, the first insulating member or the second insulating member has a hollow portion, and the hollow portion corresponds to the separation structure of the fixing portion and the welding portion; the insulating structure has a base portion and a tongue portion, the mating portions of the terminals are arranged on the tongue portion, and the fixing portions of the terminals are combined with the base portion. The upper and lower terminal parallel type electrical connector as described in claim 3 further includes a first metal shell, a second metal shell and a reinforcing member, the first metal shell includes a coupling portion and a surrounding portion, the coupling portion is coupled to the base portion of the insulating structure, the surrounding portion surrounds the tongue portion, the second metal shell is inserted into the surrounding portion, and the reinforcing member surrounds the outer circumference of the surrounding portion. As described in claim 4, the upper and lower terminal parallel type electrical connector, wherein the surrounding portion of the first metal shell has at least one first through hole, the reinforcing member has at least one second through hole, and at least one of the first through holes is aligned with at least one of the second through holes. The upper and lower row terminal parallel type electrical connector as described in claim 3, wherein the shielding spacers include a middle front spacer, a middle rear spacer, two inner spacers, and two outer spacers, the middle front spacer and the middle rear spacer are aligned front and back along the extension direction of the terminals, the two inner spacers are respectively arranged on opposite sides of the middle front spacer and the middle rear spacer, and the two outer spacers are respectively arranged on the outer sides of the two inner spacers. At least one of the first conventional signal terminals and at least one of the second conventional signal terminals connected in parallel abut against the middle front partition or the middle rear partition; the first power terminals and the second power terminals abut against the inner partitions; the first ground terminals and the second ground terminals abut against the outer partitions; each of the outer partitions has a plurality of shielding extensions, which extend between the welding portions of the terminals. As described in claim 6, the upper and lower terminal parallel type electrical connector, wherein the fixing portion and the welding portion of at least one of the first conventional signal terminal pairs or at least one of the second conventional signal terminal pairs abutting against the shielding partition form a separation structure. An upper and lower row terminal parallel type electrical connector as described in claim 7, wherein the insulating structure includes a first insulating member, a second insulating member and a third insulating member, the terminals of the first terminal row are combined with the first insulating member, the terminals of the second terminal row are combined with the second insulating member, the first insulating member and the second insulating member are combined with the third insulating member, the first insulating member or the second insulating member has a hollow portion, and the hollow portion corresponds to the separation structure of the fixing portion and the welding portion; the insulating structure has a base portion and a tongue portion, the mating portions of the terminals are arranged on the tongue portion, and the fixing portions of the terminals are combined with the base portion. The upper and lower terminal parallel type electrical connector as described in claim 6 further includes a first metal shell, a second metal shell and a reinforcing member, the first metal shell includes a coupling portion and a surrounding portion, the coupling portion is coupled to the base portion of the insulating structure, the surrounding portion surrounds the tongue portion, the second metal shell is inserted into the surrounding portion, and the reinforcing member surrounds the outer circumference of the surrounding portion. As described in claim 9, the upper and lower terminal parallel type electrical connector, the surrounding portion of the first metal shell has at least one first through hole, the reinforcing member has at least one second through hole, and at least one of the first through holes is aligned with at least one of the second through holes.