Electrical connector assembly and method of manufacturing the same

Abstract

The application provides an electric connector assembly and a manufacturing method thereof. The electric connector assembly comprises conductive terminals, an intermediate shielding sheet and an insulating body. The insulating body comprises an inner insulating part and an outer insulating part. The conductive terminals comprise first terminals and second terminals. The first terminals and the intermediate shielding sheet are jointly embedded in the inner insulating part. The second terminals are assembled in the inner insulating part. The outer insulating part is injection molded on the second terminals and the inner insulating part. Each conductive terminal has a fixed part, a contact arm exposed to the outside of the insulating body and a soldering leg exposed to the lower side of the insulating body. The insulating body has a slot arranged at the rear part and extending along the height direction. The soldering legs of the first and second terminals are arranged in two rows which are spaced in the front-rear direction. The slot extends in the lateral direction and exposes the soldering legs of the first terminals outwardly. The electric connector assembly is simple and convenient to manufacture and has low cost.

Description

Technical Field

[0001] This invention relates to an electrical connector assembly and a method for manufacturing the same. Background Technology

[0002] With the rapid development of science and technology in the electronics industry, the size of electronic products is becoming increasingly thinner and smaller, which requires the components of electronic products to be smaller and smaller, and the connector industry is the first to be affected.

[0003] The requirement for smaller dimensions in the next generation of USB Type-C connectors has led to higher demands on mechanical performance and increased design complexity. To cater to thinner and lighter devices while ensuring product structural reliability, major manufacturers have introduced corresponding structural designs.

[0004] Existing USB Type-C electrical connectors include a plastic base, upper and lower rows of conductive terminals disposed on the plastic base, and a shield sandwiched between the upper and lower rows of conductive terminals. The plastic base includes upper and lower bodies and an insulating body injection-molded outside the upper and lower bodies. The upper and lower bodies are respectively injection-molded outside the two rows of conductive terminals. Thus, three injection molding processes are required to complete the manufacturing of the terminal module of the electrical connector, making the molding process cumbersome.

[0005] In view of this, it is necessary to improve existing electrical connector assemblies and their manufacturing methods to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide a simple and convenient electrical connector assembly and its manufacturing method.

[0007] To achieve the above-mentioned objectives, the present invention provides an electrical connector assembly comprising a plurality of conductive terminals, an intermediate shield, and an insulating body covering the conductive terminals and the intermediate shield. The insulating body includes an inner insulating component and an outer insulating component. The conductive terminals include a plurality of first terminals with contact arms arranged in one row and a plurality of second terminals with contact arms arranged in another row. The first terminals and the intermediate shield are jointly embedded in the inner insulating component. The second terminals are assembled in the inner insulating component. The outer insulating component is injection molded outside the second terminals and the inner insulating component. Each conductive terminal has a fixing portion, a contact arm extending forward from the fixing portion and exposed outside the insulating body, and a solder foot protruding from the lower side of the insulating body. The insulating body has a slot located at its rear and extending through it in the height direction. The solder feet of the first and second terminals are arranged in two rows spaced apart in the front-to-back direction, and the slot extends in the transverse direction and exposes the solder feet of the first terminals outward.

[0008] As a further improvement of the present invention, both the first terminal and the second terminal include twelve conductive terminals, and the contact arms of the first terminal and the contact arms of the second terminal are arranged in a one-to-one correspondence.

[0009] As a further improvement of the present invention, the intermediate shielding sheet has a substrate portion and a pair of connecting feet formed by bending and extending from the substrate portion. The pair of connecting feet are located on both sides of the solder feet of the first terminal in the lateral direction and extend horizontally backward, and are arranged in a row at the same height as the solder feet of the first terminal.

[0010] As a further improvement of the present invention, in the lateral direction, the solder feet of the first terminal, the connecting feet, and the solder feet of the second terminal are staggered.

[0011] As a further improvement of the present invention, the inner insulating member has a groove located at its front end, the groove extending rearward from the front end face of the inner insulating member, and the head of the second terminal is received in the corresponding groove one by one.

[0012] As a further improvement of the present invention, the inner insulating member has a plurality of protrusions and a plurality of positioning grooves protruding from its rear end face, two adjacent protrusions are spaced apart in the transverse direction to form the positioning grooves, and the fixing part of the second terminal has a vertical section extending in the height direction and connected to the solder foot, the vertical section being received and confined within the corresponding positioning groove.

[0013] As a further improvement of the present invention, the electrical connector assembly also has a first strip connected to the front end and the rear end of the first terminal, a second strip connected only to the front end of the intermediate shield, and a third strip connected to the front end and the rear end of the second terminal.

[0014] As a further improvement of the present invention, the rear portion of the first strip is fully exposed to the slot.

[0015] As a further improvement of the present invention, the slot includes a first slot formed on the inner insulating member and a second slot formed on the outer insulating member, the first slot and the second slot are connected, and the orthographic projection of the first slot on the horizontal plane completely falls inside the orthographic projection of the second slot on the horizontal plane, and the electrical connector assembly also has a sealing block filled into the slot.

[0016] To achieve the above-mentioned objectives, the present invention also provides a method for manufacturing an electrical connector assembly, comprising the following steps:

[0017] S1: Provide a first terminal connected to a first strip and an intermediate shield connected to a second strip, and embed the first terminal and the intermediate shield in the inner insulating component;

[0018] S2: Remove the rear portion of the first strip that is connected to the first terminal and protrudes into the slot through the slot formed on the inner insulating member;

[0019] S3: Provide a second terminal connected to a third strip, and assemble the second terminal into a corresponding fixing groove on the upper side of the inner insulating member, wherein the first terminal and the second terminal are arranged symmetrically in opposite directions;

[0020] S4: Remove the portions of the first, second, and third strips located in front of the inner insulation component;

[0021] S5: Embed the inner insulation component and the second terminal inside the outer insulation component, and remove the portion of the third material strip located behind the insulation body.

[0022] The beneficial effects of the present invention are as follows: The electrical connector assembly and its manufacturing method of the present invention are completed by embedding the first terminal and the intermediate shielding sheet together in the inner insulating part, assembling the second terminal into the inner insulating part, and then injection molding the outer insulating part on its outside. Thus, only two injection molding processes are required. Furthermore, the solder feet of the first terminal are exposed to the outside through the slots provided on the insulating body, which not only simplifies the positioning of the rear side of the first terminal and effectively ensures the flatness of the conductive terminal, but also facilitates the cutting and removal of the metal strip connected to the solder feet. This simplifies the manufacturing process of the electrical connector assembly, making it easy to manufacture and reducing costs. Attached Figure Description

[0023] Figure 1 This is a three-dimensional assembly diagram of the electrical connector assembly of the present invention.

[0024] Figure 2 yes Figure 1 Another view of the electrical connector assembly shown.

[0025] Figure 3 yes Figure 1 A partially exploded view of the electrical connector assembly shown.

[0026] Figure 4 yes Figure 1 The diagram shows a partially exploded view of the electrical connector assembly after the outer insulation has been removed.

[0027] Figure 5 yes Figure 4 Another view of the electrical connector assembly shown.

[0028] Figure 6 This is a partially exploded view of the electrical connector assembly shown in Figure 4 after the second terminal has been removed.

[0029] Figure 7 yes Figure 1 The diagram shows a top view of the electrical connector assembly after the insulating body has been removed.

[0030] Figure 8 yes Figure 6 The diagram shows a perspective view of the electrical connector assembly connected to the first and second strips.

[0031] Figure 9 yes Figure 8 Top view of the electrical connector assembly shown.

[0032] Figure 10 It is Figure 8 A perspective view of the electrical connector assembly after the rear portion of the first strip has been removed.

[0033] Figure 11 yes Figure 10 A perspective view of the electrical connector assembly further assembled with a second terminal and a third strip.

[0034] Figure 12 yes Figure 11 The diagram shows a three-dimensional view of the electrical connector assembly with the front portions of the second and third strips removed and an outer insulating component formed. Detailed Implementation

[0035] The present invention will now be described in detail with reference to the embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional modifications made by those skilled in the art based on these embodiments are included within the scope of protection of the present invention.

[0036] Please refer to Figures 1 to 12 The present invention is shown as a preferred embodiment of the electrical connector assembly 100. In the present invention, the electrical connector assembly 100 is mounted on an external circuit board (not shown) and includes a plurality of conductive terminals 2, an intermediate shielding sheet 3, and an insulating body 1 covering the conductive terminals 2 and the intermediate shielding sheet 3.

[0037] The insulating body 1 includes an inner insulating member 11 and an outer insulating member 12. The outer insulating member 12 includes a base 121 located on its rear side, a tongue plate portion 122 located on its front side, and an intermediate portion 123 located between the base 121 and the tongue plate portion 122. The tongue plate portion 122 has two surfaces arranged opposite to each other along the height direction, and the contact arms 202 of the two rows of conductive terminals 2 are respectively exposed on the two surfaces of the tongue plate portion 122.

[0038] The first terminal 21 and the intermediate shielding sheet 3 are embedded in the inner insulating component 11, the second terminal 22 is assembled in the inner insulating component 11, and the outer insulating component 12 is injection molded outside the second terminal 22 and the inner insulating component 11.

[0039] The insulating body 1 has a slot 101 located at its rear and extending through it along the height direction. The solder feet 203 of the first and second terminals 21 and 22 are arranged in two rows spaced apart in the front-to-back direction. The slot 101 extends laterally and exposes the solder feet 203 of the first terminal 21 outward. Furthermore, the portion of the solder foot 203 of the first terminal 21 that is connected to its corresponding strip is exposed in the slot 101, thereby facilitating the cutting and removal of the corresponding strip.

[0040] Please refer to Figures 1 to 5 As shown, the conductive terminal 2 includes a plurality of first terminals 21 with contact arms 202 arranged in one row and a plurality of second terminals 22 with contact arms 202 arranged in another row. The arrangement of the first terminals 21 and the second terminals 22 is the same as that of the conductive terminals in a standard USB Type C electrical connector.

[0041] Each of the conductive terminals 2 has a fixing portion 201, a contact arm 202 extending forward from the fixing portion 201 and exposed on the outside of the insulating body 1, and a solder foot 203 protruding on the lower side of the insulating body 1. The solder feet 203 of the conductive terminals 2 all extend horizontally backward to form surface-welded solder feet.

[0042] In this invention, the number of the first terminal 21 and the second terminal 22 are the same, and each includes twelve conductive terminals 2. The contact arms 202 of the first terminal 21 and the contact arms 202 of the second terminal 22 are arranged in a one-to-one correspondence.

[0043] Specifically, both the first terminal 21 and the second terminal 22 include a pair of ground terminals G, a pair of power terminals P, and several signal terminals. The pair of ground terminals G are located on the outermost side, and the power terminals P are located on the inner side of the ground terminals G. The several signal terminals include several first signal terminals S-1 located between the two power terminals P and a second signal terminal S-2 located between the power terminals P and the ground terminals G. The second signal terminal S-2 is used to transmit high-speed signals. In this embodiment, there are a total of four first signal terminals S-1, and the four first signal terminals S-1 include CC terminals, D+ terminals, D- terminals, and SBU terminals arranged sequentially in the horizontal direction; wherein the D+ terminals and D- terminals are mainly used to transmit USB 2.0 signals.

[0044] Furthermore, the front ends of the contact arms 202 of the pair of grounding terminals G and the pair of power terminals P are aligned with each other (i.e., horizontally aligned), and both extend forward beyond the front ends of the contact arms 202 of the first signal terminal S-1 and the second signal terminal S-2, so that the front ends of the contact arms 202 of the first signal terminal S-1 and the second signal terminal S-2 are positioned further back. In this embodiment, the front end of the contact arm 202 of the first signal terminal S-1 extends forward beyond the front end of the contact arm 202 of the second signal terminal S-2, that is, the front end of the contact arm 202 of the second signal terminal S-2 is located behind the front ends of the contact arms 202 of the other conductive terminals.

[0045] The intermediate shielding plate 3 has a base plate portion 31 and a pair of connecting feet 32 ​​formed by bending and extending from the base plate portion 31. The pair of connecting feet 32 ​​are located on both sides of the solder feet 203 of the first terminal 21 in the lateral direction and extend horizontally backward. They are arranged in a row at the same height as the solder feet 203 of the first terminal 21, and the rear ends of the connecting feet 32 ​​and the solder feet 203 of the first terminal 21 are aligned with each other.

[0046] In the lateral direction, the solder feet 203 of the first terminal 21, the connecting foot 32, and the solder feet 203 of the second terminal 22 are staggered and arranged sequentially from the outside to the inside on any side of the vertical center plane of the electrical connector assembly 100, such as connecting foot 32, solder feet 203 of the second terminal 22, solder feet 203 of the first terminal 21, solder feet 203 of the second terminal 22, and solder feet 203 of the first terminal 21.

[0047] The base plate portion 31 includes a pair of side plate portions 311 that are opposite to each other and spaced apart on its lateral sides, and a first and a second crossbeam 312 and 313 that connect the pair of side plate portions 311. Each of the side plate portions 311 has a locking protrusion 3112 that protrudes from its lateral side end to lock with a mating connector (not shown).

[0048] The first crossbeam 312 and the second crossbeam 313 are spaced apart in the front-rear direction to form a first notch 314. The substrate portion 31 also has a second notch 315 located on the front side of the first crossbeam 312. The grounding terminal G and the second signal terminal S-2 are located on the outer side of the first notch 314 and the second notch 315 in the lateral direction.

[0049] Each of the side plate portions 311 also has a connecting portion 3113 protruding from its front end for connection with the material strip, the connecting portion 3113 being located outside the adjacent grounding terminal G in the lateral direction.

[0050] Please refer to Figures 3 to 6As shown, the inner insulating member 11 has a plurality of spacers 112, a fixing groove 113 and a through groove 114 that runs through it along the height direction. The spacers 112 arranged adjacent to each other in the transverse direction form the fixing groove 113 that accommodates the fixing part 201.

[0051] The contact arm 202 has a head 204 located on its front side, and at least a portion of the head 204 of the first terminal 21 extends forward beyond the inner insulating member 11. The inner insulating member 11 also has a groove 115 located in its front portion, the groove 115 extending rearward from the front end face 110 of the inner insulating member 11, and the heads 204 of the second terminals 22 are correspondingly received in the corresponding grooves 115, and a portion of the heads 204 of the second terminals 22 extends forward beyond the inner insulating member 11.

[0052] The inner insulating member 11 also has a plurality of protruding strips 116 and a plurality of positioning grooves 117 protruding from its rear end face. Two adjacent protruding strips 116 are spaced apart in the lateral direction to form the positioning grooves 117. The fixing part 201 of the second terminal 22 has a vertical section 2014 extending in the height direction and connected to the solder foot 203. The vertical section 2014 is received and confined in the corresponding positioning groove 117.

[0053] In a preferred embodiment of the present invention, the protrusion 116 includes a first protrusion 1161 located on the upper side, a second protrusion 1162 located on the lower side, and a connecting portion 1163 connecting the first protrusion 1161 and the second protrusion 1162. The connecting portion 1163 has an inclined surface 1164 facing rearward and inclined relative to the vertical direction. The two ends of the inclined surface 1164 are respectively connected to the first protrusion 1161 and the second protrusion 1162, such that the second protrusion 1162 protrudes rearward by a greater extent than the first protrusion 1161, thereby providing reliable fixation for the lower section of the second terminal 22. That is, the thickness of the second protrusion 1162 in the front-rear direction is greater than the thickness of the first protrusion 1161 in the front-rear direction. The first protrusion 1161 and the partition 112 located on the rearmost side are integrally connected, and the rear end faces of both are flush.

[0054] The fixing portion 201 of the second terminal 22 includes a first straight section 2011 extending rearward from the contact arm 202, an offset section 2012 extending obliquely from the first straight section 2011, a second straight section 2013 extending rearward from the rear end of the offset section 2012, and a vertical section 2014 extending downward from the second straight section 2013. The solder foot 203 of the second terminal 22 extends rearward from the bottom end of the vertical section 2014. The offset section 2012 of the second terminal 22 is arranged in a mirror symmetrical manner. The second straight section 2013 of the second terminal 22 is partially exposed outward through the slot.

[0055] The partition 112 includes two rows that cooperate with the first straight section 2011 and two rows that cooperate with the second straight section 2013. The two rows of partitions 112 cooperating with the first straight section 2011 are spaced apart in the front-to-back direction, and the two rows of partitions 112 cooperating with the second straight section 2013 are also spaced apart in the front-to-back direction. The partitions 112 in each row are arranged in the transverse direction. The through slot 114 is provided corresponding to the first straight section 2011 and is located between the two rows of partitions 112 cooperating with the first straight section 2011 in the front-to-back direction.

[0056] like Figure 7 As shown, the solder foot 203 of the first terminal 21 is located on the rear side of the offset section 2012. In the front-back direction, the solder foot 203 of the first terminal 21 is located within the front-back length range of the second straight section 2013, and the distance from the rear end face of the solder foot 203 of the first terminal 21 to the front end of the second straight section 2013 is less than the distance from the rear end face of the solder foot 203 of the first terminal 21 to the rear end of the second straight section 2013, so that the distance between the solder foot 203 of the first terminal 21 and the solder foot 203 of the second terminal 22 in the front-back direction is large enough to facilitate subsequent welding operations.

[0057] like Figures 8 to 12 As shown, the electrical connector assembly 100 also has a first strip 41 connected to the front and rear ends of the first terminal 21, a second strip 42 connected only to the front end of the intermediate shield 3, and a third strip 43 connected to the front and rear ends of the second terminal 22.

[0058] The rear portion of the first strip 41 is completely exposed in the slot. Specifically, the first strip includes a first front strip 411 connected to the front end of the first terminal 21 and a first rear strip 412 connected to the solder joint 203 of the first terminal 21. The first rear strip 412 is completely exposed in the slot to facilitate cutting and separation between the first terminal 21 and the first rear strip 412. In other words, the first terminal 21 has a first front strip connecting portion 211 located at its front end to connect with the first front strip 411 and a first rear strip connecting portion 213 located at its rear end to connect with the first rear strip 412. During injection molding of the inner insulating part 11, the first front strip 411 and the second rear strip 412 are used for positioning on both the front and rear sides of the first terminal 21.

[0059] In a preferred embodiment of the present invention, the third strip 43 includes a third front strip 431 connected to the head of the second terminal 22 and a third rear strip 432 connected to the solder foot 203 of the second terminal 22.

[0060] In addition, in this invention, the slot 101 includes a first slot 1012 formed on the inner insulating member 11 and a second slot 1013 formed on the outer insulating member 12. The first slot 1012 and the second slot 1013 are connected, and the orthographic projection of the first slot 1012 on the horizontal plane completely falls inside the orthographic projection of the second slot 1013 on the horizontal plane. The electrical connector assembly 100 also has a sealing block (not shown) filled into the slot 101.

[0061] In other words, such as Figure 1 and Figure 2 As shown, the first slot 1012 and the second slot 1013 are aligned at their centers, and the second slot 1013 is expanded outward relative to the first slot 1012 in the front, back, left and right directions, so that the opening size of the second slot 1013 is larger than the opening size of the first slot 1012.

[0062] In a preferred embodiment of the present invention, during the manufacturing process of the electrical connector assembly, the first terminal 21 and the intermediate shielding sheet 3 are first molded together with the inner insulating component 11 using an injection molding process. Then, the second terminal 22 is assembled onto the inner insulating component 11. Next, the outer insulating component 12 is molded around it using an injection molding process, thereby completing the assembly and molding of the insulating body 1 with the conductive terminal 2 and the intermediate shielding sheet 3. Finally, the metal shell (not shown) is assembled onto the insulating body 1.

[0063] As can be seen, the entire manufacturing process requires two injection molding processes, which presents significant implementation challenges. Furthermore, the electrical connector assembly of this invention has a large number of first terminals 21 and second terminals 22, totaling 24, with 24 solder pads 203, requiring considerable space. To ensure the fixation and positioning of these numerous solder pads 203 during the two injection molding processes, the electrical connector assembly 100 of this invention divides the solder pads 203 into two rows, one for the first terminal 21 and the other for the second terminal 22. These are then soldered to the external circuit board using surface mount technology (SMT), thus reasonably staggering the solder pads 203 of the two rows of conductive terminals. This solder pad arrangement design and the design of the material strip connection portion at the front end of the conductive terminal 2 facilitate reliable fixation and positioning of the first material strip 41 of the first terminal 21 and the second material strip 42 of the second terminal 22, ensuring the flatness of the conductive terminal 2 and thus providing convenience for the two injection molding processes.

[0064] Based on the above description, the method for manufacturing the electrical connector assembly 100 includes the following steps:

[0065] S1: Provide a first terminal 21 connected to a first strip 41 and an intermediate shielding sheet 3 connected to a second strip 42, and embed the first terminal 21 and the intermediate shielding sheet 3 into the inner insulating member 11;

[0066] S2: Through the slot 101 formed on the inner insulating member 11, remove the rear portion of the first strip 41 that is connected to the first terminal 21 and protrudes into the slot 101 (e.g., Figure 8 and Figure 10 (as shown);

[0067] S3: Provide a second terminal 22 connected to the third strip 43, and assemble the second terminal 22 into the corresponding fixing groove 113 on the upper side of the inner insulating member 11 (e.g., Figure 11 As shown in the figure, the first terminal 21 and the second terminal are arranged in opposite symmetrical configurations;

[0068] S4: Remove the portions of the first tape 41, the second tape 42, and the third tape 43 located in front of the inner insulation member 11 (e.g., ...). Figure 11 and Figure 12 (as shown);

[0069] S5: Embed the inner insulating component 11 and the second terminal 22 inside the outer insulating component 12, and remove the portion of the third material strip 43 located on the rear side of the outer insulating component 12 (e.g., ...). Figure 12 (As shown).

[0070] In this invention, step S3 further includes a partition 112 on the side of the hot melt fixing groove 113 to fix the second terminal 22 with molten plastic.

[0071] In this invention, the electrical connector assembly 100 and its manufacturing method are completed by embedding the first terminal 21 and the intermediate shielding sheet 3 together in the inner insulating part 11, assembling the second terminal 22 into the inner insulating part 11, and then injection molding the outer insulating part 12 on its outside. Thus, only two injection molding processes are required. Furthermore, the solder feet 203 of the first terminal 21 are exposed to the outside through the slots 101 provided on the insulating body 1, which not only simplifies the positioning of the rear side of the first terminal 21 and effectively ensures the flatness of the conductive terminal, but also facilitates the cutting and removal of the metal strip 412 connected to the solder feet 203 of the first terminal 21. This simplifies the manufacturing process of the electrical connector assembly, making it easy to manufacture and reducing costs.

[0072] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. An electrical connector assembly comprising a plurality of conductive terminals, an intermediate shield, and an insulating body covering the conductive terminals and the intermediate shield, the insulating body comprising an inner insulating member and an outer insulating member, the conductive terminals comprising a plurality of first terminals with contact arms arranged in one row and a plurality of second terminals with contact arms arranged in another row, the first terminals and the intermediate shield being jointly embedded in the inner insulating member, the second terminals being assembled in the inner insulating member, the outer insulating member being injection molded outside the second terminals and the inner insulating member, each conductive terminal having a fixing portion, a contact arm extending forward from the fixing portion and exposed outside the insulating body, and a solder foot protruding from the underside of the insulating body, characterized in that: The insulating body has a slot located at its rear and extending through it in the height direction. The solder feet of the first and second terminals are arranged in two rows spaced apart in the front-to-back direction. The slot extends in the lateral direction and exposes the solder feet of the first terminal outward. The electrical connector assembly also has a first strip connected to the front and rear ends of the first terminal, a second strip connected only to the front end of the intermediate shield, and a third strip connected to the front and rear ends of the second terminal. The rear portion of the first strip is completely exposed in the slot. The slot includes a first slot formed on the inner insulating member and a second slot formed on the outer insulating member. The first slot and the second slot are connected. The orthographic projection of the first slot on the horizontal plane completely falls inside the orthographic projection of the second slot on the horizontal plane. The electrical connector assembly also has a sealing block filled into the slot.

2. The electrical connector assembly as claimed in claim 1, characterized in that: The first terminal and the second terminal each include twelve conductive terminals, and the contact arms of the first terminal and the contact arms of the second terminal are arranged in a one-to-one correspondence.

3. The electrical connector assembly as claimed in claim 2, characterized in that: The intermediate shielding sheet has a base plate portion and a pair of connecting feet formed by bending and extending from the base plate portion. The pair of connecting feet are located on both sides of the solder feet of the first terminal in the lateral direction and extend horizontally backward, and are arranged in a row at the same height as the solder feet of the first terminal.

4. The electrical connector assembly as claimed in claim 3, characterized in that: In the lateral direction, the solder feet of the first terminal, the connecting feet, and the solder feet of the second terminal are staggered.

5. The electrical connector assembly as claimed in claim 2, characterized in that: The inner insulating member has a groove located at its front end, the groove extending rearward from the front end face of the inner insulating member, and the head of the second terminal is received in the corresponding groove one by one.

6. The electrical connector assembly as claimed in claim 2, characterized in that: The inner insulating member has several protrusions and several positioning grooves protruding from its rear end face. Two adjacent protrusions are spaced apart in the lateral direction to form the positioning grooves. The fixing part of the second terminal has a vertical section extending in the height direction and connected to the solder foot. The vertical section is received and confined in the corresponding positioning groove.

7. A method for manufacturing an electrical connector assembly as described in any one of claims 1 to 6, characterized in that, Includes the following steps: S1: Provide a first terminal connected to a first strip and an intermediate shield connected to a second strip, and embed the first terminal and the intermediate shield in the inner insulating component; S2: Remove the rear portion of the first strip that is connected to the first terminal and protrudes into the first slot through the first slot formed on the inner insulating member; S3: Provide a second terminal connected to a third strip, and assemble the second terminal into a corresponding fixing groove on the upper side of the inner insulating member, wherein the first terminal and the second terminal are arranged symmetrically in opposite directions; S4: Remove the portions of the first, second, and third strips located in front of the inner insulation component; S5: Embed the inner insulation component and the second terminal inside the outer insulation component, and remove the portion of the third material strip located behind the insulation body.

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