TWI839643B - Structure of electrical connector and assembly method thereof - Google Patents

Abstract

The present invention relates to a structure of an electrical connector and an assembly method thereof, comprising the following steps: providing a first terminal strip having a plurality of first terminals, and forming a first insulating base and a second insulating base on the outside of the first terminals by means of an embedded injection molding process; cutting off a strip head of the first terminal strip near the second insulating base; cutting off a strip head of the first terminal strip near the first insulating base to form a first docking portion, assembling a spacer on one side of the first insulating base, and bending the first terminal between the first insulating base and the second insulating base so that The two are perpendicular to each other; the third terminal, the third insulating seat and the fourth insulating seat are manufactured according to the molding method of the first terminal, the first insulating seat and the second insulating seat; the outer sides of the bent third insulating seat and the fourth insulating seat are positioned on the inner sides of the bent first insulating seat and the second insulating seat and assembled and positioned, and the multiple elastic arms protruding from the spacer simultaneously contact the multiple grounding terminals with grounding function among the first terminals and the second terminals; and a tongue plate seat is provided on the outside of the first insulating seat and the third insulating seat, and the electrical connector is assembled.

Description

Structure of electrical connector and its assembly method

The present invention provides a structure of an electrical connector and an assembly method thereof, in particular, a method that can simplify the manufacturing process of the electrical connector, has the effect of shortening the manufacturing time and reducing the cost, and at the same time, through the assembly structure of the first terminal, the second terminal and the spacer, to achieve better matching characteristic impedance, reduce high-frequency signal reflection and have better integrity of high-frequency signal transmission.

Electronic connectors are widely used in various communication and audio-visual equipment as transmission and connection components of electronic signals. Common standard connector sockets include RJ-11 (telephone line socket), RJ-45 (network line socket), USB (Universal Serial Bus), IEEE1394 (Serial Bus), RF (Wireless Transmission Port), Pin-header (Pin Header), HDMI (High Definition Multimedia Interface) and Display-port (Display Port) and many other types.

Among the above connectors, the Display-port (DP) connector is widely used in image signal transmission and can transmit high-frequency signals. The Display-port connector consists of an insulating body, a plurality of upper terminal pairs and lower terminal pairs installed in the insulating body. The upper and lower terminal structures of the above Display-port connector are poorly designed and cannot achieve a better matching characteristic impedance, and cannot reduce high-frequency signal reflection, so the integrity of high-frequency signal transmission is greatly reduced and the transmission stability is poor. In addition, the manufacturing process is relatively complicated, which makes the manufacturing time longer and the cost cannot be effectively reduced. It needs to be improved by those engaged in this industry.

Therefore, in view of the above problems and deficiencies, the inventor collected relevant information and, after multiple evaluations and considerations, designed the structure of this electrical connector and the invention of its assembly method.

The main purpose of the present invention is to provide an assembly method of an electrical connector, comprising the following steps: providing a first terminal strip having a plurality of first terminals, and forming a first insulating base and a second insulating base on the outside of the first terminals by means of an embedded injection molding process; cutting off a strip head of the first terminal strip near the second insulating base; cutting off a strip head of the first terminal strip near the first insulating base to form a first docking portion, assembling a spacer on one side of the first insulating base, and bending the first terminal between the first insulating base and the second insulating base. The third terminal, the third insulating seat and the fourth insulating seat are manufactured according to the molding method of the first terminal, the first insulating seat and the second insulating seat; the outer sides of the bent third insulating seat and the fourth insulating seat are positioned on the inner sides of the bent first insulating seat and the second insulating seat, and the plurality of elastic arms protruding from the spacer are simultaneously in contact with the plurality of grounding terminals with grounding function among the first terminals and the second terminals; and a tongue plate seat is provided on the outer sides of the first insulating seat and the third insulating seat, and the electrical connector is assembled. The above-mentioned assembly method can simplify the manufacturing process of the electrical connector, which has the effect of shortening the manufacturing time and reducing the cost. At the same time, through the assembly structure of the first terminal, the second terminal and the spacer, better matching characteristic impedance, reducing high-frequency signal reflection and having better integrity of high-frequency signal transmission can be achieved.

A secondary purpose of the present invention is to further assemble a shielding shell on the outside of the electrical connector, and the shielding shell includes at least two grounding pins plugged into a preset circuit board.

Another purpose of the present invention is to provide a raised seat at the bottom of the shielding shell, and the raised seat has a slot for positioning a grounding plate and two receiving slots for the second insulating seat and the fourth insulating seat to penetrate, and the raised seat is provided with at least one positioning column penetrating the preset circuit board to form a positioning, and a material head for cutting is connected to the top of the grounding plate, and at least one grounding foot is protruding from the bottom, and a protruding piece is protruding from each of the two sides of the grounding plate to contact the bottom of the shielding shell.

Another purpose of the present invention is that the first insulating seat has a horizontal plate, and the horizontal plate has a plurality of through holes for the plurality of spring arms of the spacer to extend into and contact the first terminal to generate electrical connection, and a vertical wall is formed on one side of the horizontal plate, and the top surface of the vertical wall has two positioning parts for fixing the two hanging parts of the spacer.

Another object of the present invention is that the third insulating base has a horizontal plate, and a vertical wall is formed on one side of the horizontal plate.

Another purpose of the present invention is that the two sides of the spacer each protrude with a cantilever that contacts the inner wall of the shielding shell, and the spacer is bent upward at the two cantilever to form an "n"-shaped hanging portion, and the two hanging portions are two positioning portions on the top side of a vertical wall of the first insulating seat, and the elastic arms of the spacer are each provided with a rib at the surface contacting the first terminals and the second terminals.

1: First terminal strip

11: First terminal

111: First welding section

112: First docking part

12: Material lead

2: First insulating seat

21: Horizontal board

211:Through hole

22: Vertical wall

221: Positioning Department

222: Side block

223: Buckle slot

224: Guide bevel

225: Stop surface

3: Second insulating seat

31: Buckle block

32: Guide bevel

33: Stop surface

34: Through hole

4: Spacer

41: Bomb Arm

411: ribs

42: hanging arms

43: Hanging part

5: Second terminal strip

51: Second terminal

511: Second welding section

512: Second docking part

52: Material lead

6: The third insulating seat

61: Horizontal board

62: Vertical wall

63: Buckle block

64: Stop surface

7: The fourth insulated seat

71: Side block

72: Buckle slot

73: Stop surface

74: Groove

8: Tongue plate seat

80:Through space

81: Tongue plate

9: Shielding shell

91: Ground pin

92: Raised seat

921: Slot

922: Storage slot

923: Positioning column

93: Grounding plate

931: Material lead

932: Ground pin

933: Lugs

a: The first buckle structure

b: Second buckle structure

A1: Provide a first terminal strip having a plurality of first terminals, and form a first insulating seat and a second insulating seat on the outside of the first terminals using an embedded injection molding process, and the first insulating seat and the second insulating seat have a bending distance therebetween

A2: Cut off the head of the first terminal strip near the second insulating base, and bend the first terminals exposed on the second insulating base to form a first welding portion

A3: The material strip head of the first terminal material strip near the first insulating base is cut off to form a first docking portion, and a spacer is assembled on one side of the first insulating base, and the first terminal between the first insulating base and the second insulating base is bent so that the two are perpendicular to each other, and a first buckling structure is provided between the first insulating base and the second insulating base to form a stable vertical structure, and the spacer is covered by the first insulating base and the second insulating base

A4: Provide a second terminal strip having a plurality of second terminals, and form a third insulating seat and a fourth insulating seat on the outside of the second terminals by using an embedded injection molding process, and the third insulating seat and the fourth insulating seat have a bending distance therebetween

A5: Cut off the head of the second terminal strip near the fourth insulating base, and bend the second terminals exposed on the fourth insulating base to form a second welding portion

A6: Bend the second terminal between the third insulating base and the fourth insulating base so that the two are perpendicular to each other, and provide a second buckling structure between the third insulating base and the fourth insulating base so that the two form a stable vertical structure.

A7: Cut off the head of the second terminal strip near the third insulating seat to form a second docking portion, and assemble and position the outer sides of the bent third insulating seat and the fourth insulating seat to the inner sides of the bent first insulating seat and the second insulating seat, and make the multiple spring arms protruding from the spacer contact the multiple grounding terminals with grounding function among the first terminals and the second terminals at the same time.

A8: A tongue plate seat is sleeved on the outside of the first insulating seat body and the third insulating seat body, and the first mating parts of the first terminals and the second mating parts of the second terminals are respectively located on the upper and lower sides of a tongue plate protruding from the tongue plate seat, and the electrical connector is assembled.

[Figure 1] is the first action diagram of assembling the electrical connector of the present invention.

[Figure 2] is the second action diagram of the electrical connector of the present invention for assembly.

[Figure 3] is the third action diagram of the electrical connector of the present invention for assembly.

[Figure 4] is the fourth action diagram of the electrical connector of the present invention for assembly.

[Figure 5] is the fifth action diagram of the electrical connector of the present invention for assembly.

[Figure 6] is the sixth action diagram of the electrical connector of the present invention for assembly.

[Figure 7] is the seventh action diagram of the electrical connector of the present invention for assembly.

[Figure 8] is the eighth action diagram of the assembly of the electrical connector of the present invention.

[Figure 9] is the ninth action diagram of the assembly of the electrical connector of the present invention.

[Figure 10] is the tenth action diagram of the assembly of the electrical connector of the present invention.

[Figure 11] is the eleventh action diagram of the electrical connector of the present invention for assembly.

[Figure 12] is the twelfth action diagram of the assembly of the electrical connector of the present invention.

[Figure 13] is the thirteenth action diagram of the assembly of the electrical connector of the present invention.

[Figure 14] is the fourteenth action diagram of the assembly of the electrical connector of the present invention.

[Figure 15] is the fifteenth action diagram of the assembly of the electrical connector of the present invention.

[Figure 16] is a diagram of the first buckling structure on the first insulating seat of the present invention.

[Figure 17] is a diagram of the first buckling structure on the second insulating seat of the present invention.

[Figure 18] is a diagram of the second buckling structure on the third insulating seat of the present invention.

[Figure 19] is a diagram of the second buckling structure on the fourth insulating seat of the present invention.

[Figure 20] is a structural diagram of the fourth insulating seat of the present invention from another viewing angle.

[Figure 21] is a schematic diagram of the electrical connection formed between the first terminal, the second terminal and the spacer of the present invention.

[Figure 22] is the first part of the step flow chart of the assembly method of the electrical connector of the present invention.

[Figure 23] is the second part of the step flow chart of the assembly method of the electrical connector of the present invention.

In order to achieve the above-mentioned purpose and effect, the technical means and structure adopted by the present invention are described in detail in the following figure for the preferred embodiment of the present invention to fully understand its features and functions.

Please refer to Figures 1 to 21, which are the first to fifteenth action diagrams of the assembly of the electrical connector of the present invention, the first buckle structure diagram of the first insulating seat body, the first buckle structure diagram of the second insulating seat body, the second buckle structure diagram of the third insulating seat body, the second buckle structure diagram of the fourth insulating seat body, and another perspective structure diagram of the fourth insulating seat body. It can be clearly seen from the figures that the structure of the electrical connector of the present invention mainly includes: a first terminal strip 1, a first insulating seat body 2, a second insulating seat body 3, a spacer 4, a second Terminal strip 5, third insulating seat body 6, fourth insulating seat body 7, tongue plate seat 8 and shielding shell 9, and the main components and connection relationship are described in detail as follows: the first insulating seat body 2 and the second insulating seat body 3 form an upper seat body and a plurality of first terminals 11 are inserted into the interior by embedded injection molding, and the first terminal 1 between the first insulating seat body 2 and the second insulating seat body 3 is bent so that the two are perpendicular to each other, and a first buckling structure a is provided between the first insulating seat body 2 and the second insulating seat body 3 to form a stable vertical structure.

The third insulating seat body 6 and the fourth insulating seat body 7 form a lower row of seats and are provided with a plurality of second terminals 51 inside by embedded injection molding. The second terminals 51 between the third insulating seat body and the fourth insulating seat body 7 are bent so that the two are perpendicular to each other. A second buckling structure b is provided between the third insulating seat body 6 and the fourth insulating seat body 7 so that the two form a stable vertical structure. The third insulating seat body 6 and the fourth insulating seat body 7 are positioned with their outer sides against the inner sides of the first insulating seat body 2 and the second insulating seat body 3 for assembly and positioning.

The spacer 4 is assembled between the upper row of seats (the first insulating seat 2 and the second insulating seat 3) and the lower row of seats (the third insulating seat 6 and the fourth insulating seat 7), and the multiple elastic arms 41 protruding from the spacer 4 simultaneously contact the multiple grounding terminals with grounding function among the first terminals 1 and the second terminals 5.

The tongue plate seat 8 has a through-space 80 for the first insulating seat 2 and the third insulating seat 6 to pass through, and the first docking portions 112 of the first terminals 11 and the second docking portions 512 of the second terminals 51 are respectively located on the upper and lower sides of a tongue plate 81 protruding from the tongue plate seat 8.

The electrical connector is further assembled with a shielding shell 9 on the outside. The shielding shell 9 includes at least two grounding pins 91 plugged into a preset circuit board (not shown in the figure). The bottom side of the shielding shell 9 is further provided with a raised seat 92. The raised seat 92 has a slot 921 for positioning a grounding plate 93 and a slot 921 for the second insulating seat 3 and the fourth insulating seat 7 to pass through. Two receiving grooves 922 are provided, and at least one positioning column 923 is protruded from the bottom side of the raised seat 92 to penetrate the preset circuit board to form a positioning, a material strip head 931 for cutting is connected to the top side of the grounding plate 93, and at least one grounding foot 932 is protruded from the bottom side, and a protruding piece 933 is protruded from each side of the grounding plate 93 to contact the bottom side of the shielding shell 9.

The first insulating seat 2 has a horizontal plate 21, and the horizontal plate 21 has a plurality of through holes 211 for the plurality of spring arms 41 of the spacer 4 to extend into contact with the first terminal 11 to generate electrical connection. A vertical wall 22 is formed on one side of the horizontal plate 21, and the top surface of the vertical wall 22 has two positioning parts 221 for fixing the two hanging parts 43 of the spacer 4.

The third insulating seat 6 has a horizontal plate 61, and a vertical wall 62 is formed on one side of the horizontal plate 61.

The two sides of the spacer 4 each protrude with a cantilever 42 that contacts the inner wall of the shielding shell 9, and the spacer 4 is bent upward at the two cantilever arms 42 to form an "n"-shaped hanging portion 43, and the two hanging portions 43 are two positioning portions 221 on the top side of a vertical wall 22 of the first insulating seat 2, and the elastic arms 41 of the spacer 4 are each provided with a rib 411 at the surface contacting the first terminals 11 and the second terminals 51.

The first buckle structure a is provided with a side block 222 protruding on each side of the vertical surface 22 of the first insulating seat 2, and a buckle groove 223 is provided on each inner side of the two side blocks 222. The two buckle grooves 223 are provided for the buckle blocks 31 protruding on each side of the second insulating seat 3 to be engaged and fixed, and the two buckle grooves 223 and the two buckle blocks 31 are provided with a guide inclined surface (224, 32) and a stop surface (225, 33) at the corresponding positions of the engagement, and the second insulating seat 3 is provided with a plurality of through holes 34 for the plurality of elastic arms 41 of the spacer 4 to extend into and contact with the first terminal 11 to generate electrical connection.

The second buckle structure b is a side block 71 protruding on both sides of the vertical surface of the fourth insulating seat 7, and a buckle groove 72 is concavely provided on the inner sides of the two side blocks 71. The two buckle grooves 72 are provided for the buckle blocks 63 protruding on both sides of the vertical wall 62 of the third insulating seat 6 to be engaged and fixed, and the two buckle grooves 72 and the two buckle blocks 63 are each provided with a stop surface (64, 73) at the corresponding position of the engagement, and the other side of the fourth insulating seat 7 corresponding to the two side blocks 71 is provided with a plurality of grooves 74 for the plurality of spring arms 41 of the spacer 4 to extend into and contact with the second terminal 51 to generate electrical connection.

The second insulating base 3 includes at least two length sizes (not shown in the figure), and the first terminals 11 are cut to different lengths corresponding to the second insulating base 3 of different length sizes (as shown in FIG. 20, it can be seen that the first welding portion 111 has two different lengths). At the same time, the fourth insulating base 7 also includes at least two length sizes (not shown in the figure), and the second terminals 51 are cut to different lengths corresponding to the fourth insulating base 7 of different length sizes (as shown in FIG. 20, it can be seen that the second welding portion 511 has two different lengths). Meanwhile, referring to FIG. 15, if the electrical connector is to be set at a lower height on the preset circuit board (PCB), the second insulating seat 3 and the fourth insulating seat 7 need to be shorter in length, and the first welding portion 111 of the first terminal 11 and the second welding portion 511 of the second terminal 51 are cut to a shorter length corresponding to the two insulating seats (3, 7), and the height pad 92 is also cut to a shorter length corresponding to the height pad 92. A thinner one is used so that the second insulating seat body 3 and the fourth insulating seat body 7 have an appropriate length when the two receiving grooves 922 of the pad 92 are penetrated, and the bending length and angle exposed on the two insulating seats (3, 7) can be smoothly welded on the preset circuit board, and the two grounding pins 91 of the shielding shell 9 and the two grounding pins 932 of the grounding plate 93 are also shorter in length to form an overall match of the electrical connector. In contrast, if the electrical connector is expected to be set higher on the preset circuit board (PCB), the second insulating seat 3 with a longer size, the fourth insulating seat 7, the first welding portion 111 of the first terminal 11, the second welding portion 511 of the second terminal 51, the two grounding pins 91 of the shielding shell 9, the two grounding pins 932 of the grounding plate 93, and the thicker pad 92 can also be used to complete the overall matching of the electrical connector.

The above-mentioned electrical connector type refers to a Display-Port connector, a Mini Display-Port connector or a High Definition Multimedia Interface (HDMI) connector.

Please refer to Figures 22 and 23, which are the step flow charts of the assembly method of the electrical connector of the present invention, and refer to the action diagrams and detailed structures disclosed in Figures 1 to 21 above to obtain the following steps:

Step A1: Provide a first terminal strip 1 having a plurality of first terminals 11, and form a first insulating seat 2 and a second insulating seat 3 on the outside of the first terminals 11 by using an embedded injection molding process, and the first insulating seat 2 and the second insulating seat 3 have a bending distance therebetween.

Step A2: Cut off the tape head 12 of the first terminal tape 1 near the second insulating base 3, and bend the first terminals 11 exposed from the second insulating base 3 to form a first welding portion 111.

Step A3: Cut off the material strip head 12 of the first terminal material strip 1 near the first insulating base 2 to form a first docking portion 112, and assemble a spacer 4 on one side of the first insulating base 2, and bend the first terminal 11 between the first insulating base 2 and the second insulating base 3 so that the two are perpendicular to each other, and provide a first buckling structure a between the first insulating base 2 and the second insulating base 3 to form a stable vertical structure, and make the spacer 4 covered by the first insulating base 2 and the second insulating base 3.

Step A4: Provide a second terminal strip 5 having a plurality of second terminals 51, and form a third insulating seat 6 and a fourth insulating seat 7 on the outside of the second terminals 51 by using an embedded injection molding process, and the third insulating seat 6 and the fourth insulating seat 7 have a bending distance therebetween.

Step A5: Cut off the tape head 52 of the second terminal tape 5 near the fourth insulating base 7, and bend the second terminals 51 exposed outside the fourth insulating base 7 to form a second welding portion 511.

Step A6: bend the second terminal 5 between the third insulating seat 6 and the fourth insulating seat 7 so that the two are perpendicular to each other, and provide a second buckling structure b between the third insulating seat 6 and the fourth insulating seat 7 so that the two form a stable vertical structure.

Step A7: Cut off the tape head 52 of the second terminal tape 5 near the third insulating seat 6 to form a second docking portion 512, and align the outer sides of the bent third insulating seat 6 and the fourth insulating seat 7 with the inner sides of the bent first insulating seat 2 and the second insulating seat 3 for assembly and positioning, and make the multiple elastic arms 41 protruding from the spacer 4 contact the multiple grounding terminals with grounding function among the first terminals 11 and the second terminals 51 at the same time.

Step A8: A tongue plate seat 8 is sleeved on the outside of the first insulating seat 2 and the third insulating seat 6, and the first docking portions 112 of the first terminals 11 and the second docking portions 512 of the second terminals 51 are respectively located on the upper and lower sides of a tongue plate 81 protruding from the tongue plate seat 8, and the electrical connector is assembled.

From the disclosure of the above-mentioned Figures 1 to 23, it can be understood that the present invention is an assembly method of an electrical connector, including the following steps: providing a first terminal strip having a plurality of first terminals, and forming a first insulating base and a second insulating base on the outside of the first terminals by using an embedded injection molding process; cutting off the head of the first terminal strip near the second insulating base; cutting off the head of the first terminal strip near the first insulating base to form a first docking portion, and assembling a spacer on one side of the first insulating base, and bending the first insulating base and the second insulating base to form a first docking portion. The first terminal is arranged so that the two are perpendicular to each other; the third terminal, the third insulating seat and the fourth insulating seat are manufactured according to the molding method of the first terminal, the first insulating seat and the second insulating seat; the outer sides of the bent third insulating seat and the fourth insulating seat are positioned on the inner sides of the bent first insulating seat and the second insulating seat and assembled and positioned, and the plurality of elastic arms protruding from the spacer are simultaneously in contact with the plurality of grounding terminals having a grounding function among the first terminals and the second terminals; and a tongue plate seat is provided on the outer sides of the first insulating seat and the third insulating seat, and the electrical connector is assembled. The above-mentioned assembly method can simplify the manufacturing process of the electrical connector, which has the effect of shortening the manufacturing time and reducing the cost. At the same time, through the assembly structure of the first terminal, the second terminal and the spacer, better matching characteristic impedance, reducing high-frequency signal reflection and having better integrity of high-frequency signal transmission can be achieved. The present invention is applied in the manufacturing field of connectors such as Display-Port, Mini Display-Port or HDMI, and has excellent practicality, so a patent application is filed to seek patent protection.

The above is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Therefore, all simple modifications and equivalent structural changes made by using the contents of the present invention's specification and drawings should be included in the patent scope of the present invention and should be stated.

In summary, the structure of the electrical connector and its assembly method of the present invention can achieve its efficacy and purpose when used. Therefore, the present invention is truly an invention with excellent practicality. In order to meet the application requirements of invention patents, an application is filed in accordance with the law. I hope that the review committee will approve this case as soon as possible to protect the inventor's hard work in research and development. If the review committee of the Jun Bureau has any doubts, please feel free to write to instruct. The inventor will do his best to cooperate and feel very grateful.

11: First terminal

111: First welding section

51: Second terminal

511: Second welding section

8: Tongue plate seat

81: Tongue plate

9: Shielding shell

91: Ground pin

92: Raised seat

921: Slot

922: Storage slot

923: Positioning column

93: Grounding plate

932: Ground pin

Claims (10)

A method for assembling an electrical connector includes the following steps: A1, providing a first terminal strip having a plurality of first terminals, and forming a first insulating base and a second insulating base on the outside of the first terminals by an embedded injection molding process, and a bending distance is provided between the first insulating base and the second insulating base; A2, cutting off a strip head of the first terminal strip near the second insulating base, and bending the first terminals exposed outside the second insulating base to form a first welding portion; A3, cutting off a strip head of the first terminal strip near the first insulating base, and bending the first terminals exposed outside the second insulating base to form a first welding portion; A4, providing a second terminal strip having a plurality of second terminals, and forming a third insulating seat and a fourth insulating seat on the outside of the second terminals by using an embedded injection molding process, and the first terminal between the first insulating seat and the second insulating seat is bent so that the two are perpendicular to each other, and a first buckling structure is provided between the first insulating seat and the second insulating seat to form a stable vertical structure, and the spacer is covered by the first insulating seat and the second insulating seat; A5, providing a second terminal strip having a plurality of second terminals, and forming a third insulating seat and a fourth insulating seat by using an embedded injection molding process outside the second terminals, and the third insulating seat A5, cutting off the head of the second terminal strip near the fourth insulating base, and bending the second terminals exposed outside the fourth insulating base to form a second welding portion; A6, bending the second terminal between the third insulating base and the fourth insulating base so that the two are perpendicular to each other, and providing a second buckling structure between the third insulating base and the fourth insulating base so that the two form a stable vertical structure; A7, cutting off the head of the second terminal strip near the third insulating base to form a The second docking part, the outer sides of the bent third insulating seat body and the fourth insulating seat body are positioned on the inner sides of the bent first insulating seat body and the second insulating seat body and assembled and positioned, and the multiple elastic arms protruding from the spacer simultaneously contact the multiple grounding terminals with grounding function among the first terminals and the second terminals; and A8, a tongue plate seat is sleeved on the outside of the first insulating seat body and the third insulating seat body, and the first docking parts of the first terminals and the second docking parts of the second terminals are respectively located on the upper and lower sides of a tongue plate protruding from the tongue plate seat, and the electrical connector is assembled. A structure of an electrical connector includes: a first insulating seat body and a second insulating seat body, the two forming an upper seat body and a plurality of first terminals are inserted into the interior by an embedded injection method, the first terminals between the first insulating seat body and the second insulating seat body are bent so that the two are in a vertical state, and a first buckling structure is provided between the first insulating seat body and the second insulating seat body so that the two form a stable vertical structure; a third insulating seat body and a fourth insulating seat body, the two forming a lower seat body and a plurality of second terminals are inserted into the interior by an embedded injection method, the second terminals between the third insulating seat body and the fourth insulating seat body are bent so that the two are in a vertical state, and the third insulating seat body is provided with a first buckling structure. A second buckling structure is provided between the upper and lower insulating seats to form a stable vertical structure, and the third and fourth insulating seats are positioned with their outer sides against the inner sides of the first and second insulating seats and assembled and positioned; a spacer is assembled between the upper and lower seats, and the plurality of spring arms protruding from the spacer simultaneously contact the plurality of grounding terminals with grounding function among the first terminals and the second terminals; and a tongue plate seat, which has a through-place space inside for the first and third insulating seats to pass through, and the first butt joint portions of the first terminals and the second butt joint portions of the second terminals are respectively located on the upper and lower sides of a tongue plate protruding from the tongue plate seat. The structure of the electrical connector and the assembly method thereof as described in claim 1 or 2, wherein the electrical connector is further assembled with a shielding shell on the outside, and the shielding shell includes at least two grounding pins plugged into a preset circuit board. The structure of the electrical connector and its assembly method as described in claim 3, wherein the bottom side of the shielding shell is further provided with a raised seat, the raised seat has a slot for positioning a grounding plate and two receiving slots for the second insulating seat body and the fourth insulating seat body to penetrate, and the bottom side of the raised seat is provided with at least one positioning column penetrated through the preset circuit board to form a positioning, a material strip head for cutting is connected to the top side of the grounding plate, and at least one grounding foot protrudes from the bottom side, and a protrusion that contacts the bottom side of the shielding shell is protruded from each of the two sides of the grounding plate. The structure and assembly method of the electrical connector as described in claim 1 or 2, wherein the first insulating seat has a horizontal plate, the horizontal plate has a plurality of through holes for the plurality of spring arms of the spacer to extend into and contact the first terminal to generate electrical connection, a vertical wall is formed on one side of the horizontal plate, and the top surface of the vertical wall has two positioning parts for fixing the two hanging parts of the spacer. The structure of the electrical connector and the assembly method thereof as described in claim 1 or 2, wherein the third insulating seat has a horizontal plate, and a vertical wall is formed on one side of the horizontal plate. The structure and assembly method of the electrical connector as described in claim 1 or 2, wherein each of the two sides of the spacer protrudes with a cantilever that contacts the inner wall of the shielding shell, and the spacer is bent upward at the two cantilever to form an "n"-shaped hanging portion, and the two hanging portions are two positioning portions on the top side of a vertical wall of the first insulating seat, and the elastic arms of the spacer are each provided with a rib at the surface contacting the first terminals and the second terminals. The structure and assembly method of the electrical connector as described in claim 1 or 2, wherein the first buckle structure is a side block protruding on each of the two sides of the vertical surface of the first insulating seat, and a buckle groove is concavely provided on the inner sides of the two side blocks. The two buckle grooves are provided for the buckle blocks protruding on each of the two sides of the second insulating seat to be engaged and fixed, and the two buckle grooves and the two buckle blocks are each provided with a guide slope and a stop surface at the corresponding positions of the engagement, and the second insulating seat is provided with a plurality of through holes for the plurality of spring arms of the spacer to extend into and contact with the first terminal to generate electrical connection. The structure and assembly method of the electrical connector as described in claim 1 or 2, wherein the second buckle structure is a side block protruding on each of the two sides of the vertical surface of the fourth insulating seat, and a buckle groove is concavely provided on the opposite inner sides of the two side blocks, and the two buckle grooves are provided for a buckle block protruding on the two sides of the vertical wall of the third insulating seat to be engaged and fixed, and the two buckle grooves and the two buckle blocks are each provided with a stop surface at the corresponding position of the engagement, and the other side of the fourth insulating seat corresponding to the two side blocks is provided with a plurality of grooves for the multiple spring arms of the spacer to extend into and contact with the second terminal to generate electrical connection. The structure of the electrical connector and the assembly method thereof as described in claim 1 or 2, wherein the second insulating seat body includes at least two length dimensions, and the first terminals are cut to different lengths corresponding to the second insulating seat body of different length dimensions, and the fourth insulating seat body includes at least two length dimensions, and the second terminals are cut to different lengths corresponding to the fourth insulating seat body of different length dimensions, and the length of the grounding pin of the shielding shell, the length of the grounding pin of the grounding plate, and the thickness of the pad also correspond to at least two dimensions.

Images