TW201941504A - Improved structure of electrical connector which requires only one set of molds for production so as to save the number of molds to be used, and is capable of achieving the effects of simple structure, convenient assembly and lower cost - Google Patents

Abstract

The invention provides an improved structure of an electrical connector, which includes an abutting portion having a plugging space on one side of a base of an insulating base body. On the other side of the base, a positioning portion of an installation part and two receiving slots at both sides of the positioning portion are disposed in insertion slots corresponding to the plugging space. A plurality of terminal sets respectively inserted in a plurality of terminal slots at the side wall surface of each insertion slot include at least three sets of conductive terminals. A base of each set of conductive terminals is embedded with two injection-molded terminal blocks disposed to be opposite to each other. The terminal blocks are respectively mounted in the receiving slots and combined with the conductive terminals for grounding in the terminal blocks in series so as to form a common grounding piece. With such a common-mode design of the terminal blocks, only one set of molds is required for production, so as to save the number of molds to be used. In addition, two sets of adjacent terminal blocks are arranged side by side so that the number of terminals is twice that of a single set of terminal blocks, so as to achieve the effects of simple structure, convenient assembly and lower cost.

Description

Structure improvement of electric connector

The invention provides an improvement in the structure of an electrical connector, in particular, an insulating base body is assembled with a terminal block in which two terminal groups are embedded and formed on each group of terminals. The common-mode design of such a terminal block can save The number of mold sets, and two sets of adjacent terminal blocks are arranged side by side, and the number of terminals is twice that of a single group of terminal blocks.

According to the current rapid development of electronic technology, the speed and performance of computers and servers are getting faster and faster. In addition to the central processing unit and memory on the motherboard as the information processing center, Various peripheral devices such as screens and modems are also the focus of computer, server and other electronic devices for screen display, data transmission, and command control. Various types of interface cards can be installed by using slots on the motherboard to enable peripheral devices to Data is transferred between the interface card and the electronic device and used for expansion purposes.

Furthermore, with the widespread application of electronic devices, the requirements for a large amount of data transmission and speed of peripheral expansion cards, graphics cards, memory and other interface cards are increasing. The early expansion interface bus transmission architecture has been inadequate, and to solve Due to the insufficient bandwidth of traditional interface cards, some industry researchers have developed a variety of interface card architectures with different specifications to meet the current development trend of electronic devices. Generally, the connector usually uses the socket of the base body to interface with the interface card. , And the terminal group in the slot resists a plurality of contacts on the edge of the interface card to form an electrical connection, The signal or power can be transmitted to the control circuit through the circuit board to perform the corresponding operation function. However, in addition to the more and more miniaturized design of connectors, the requirements for transmission speed and bandwidth are becoming higher and higher. The problems caused by high-frequency signal transmission are endless, and as the number of terminal groups increases and the distribution is more dense, it is very easy to cause electromagnetic waves and crosstalk interference during high-frequency signal transmission due to the close proximity between adjacent terminals. In the future, it will grow at a faster speed, so that the signal interference problem of the connector itself will be more serious.

The traditional high-frequency connector includes a plurality of ground terminals in an insulating body, a terminal group installed inside the insulating body, and a grounding piece that can connect the ground terminals in series. The terminal block is formed and installed in the insulating body together with the terminal block. Although it can simplify the assembly process and avoid the problem of contact and short circuit easily caused by assembly errors between adjacent terminals, but due to the different slots of the insulating body The number of terminals set inside will also be different, so that the terminal blocks individually molded on each group of terminals need to be produced using two sets of molds and different processes, resulting in the overall manufacturing cost cannot be effectively reduced, and considering the terminals of the terminal blocks The number, the number of molds used and the cost of production, as well as the shape and structure assembled in the insulation body, make the terminal block modular design more careful and cautious, and how to match the terminal block with the terminal group in the insulating body is limited. Proper configuration in the space will also affect whether the cost of the modular design of the connector can be reduced and the overall structure more stable The key is to be engaged in this industry, they re-designed to be effectively addressed.

Therefore, the inventor has taken into account the problems and deficiencies of the above-mentioned custom, and collected relevant information through multiple evaluations and considerations, and made use of years of R & D experience in this industry to continuously make trials and modifications, and began to improve the structure of this electrical connector. Invention patent was born.

The main purpose of the present invention is that the inside of the docking portion of the insulating seat body at one side of the base has a plugging space, and the other side of the base is provided with a mounting portion at a position corresponding to a slot in the plugging space. The receiving grooves on the two sides of the body, and the terminal groups respectively inserted in the plurality of terminal grooves on the two side walls of each slot include at least three groups of oppositely disposed conductive terminals, and the base of each group of conductive terminals is buried. The terminal block is integrally formed in the entrance and exit method, and each terminal block is respectively installed in the receiving groove of the mounting portion to form a relative arrangement, so that a plurality of conductive terminals can be installed with the terminal block and the density is higher. The common mold design of the terminal block can be produced with only one set of mold, in order to simplify the process and save the number of sets used in the mold, and to form two sets of adjacent terminal blocks arranged side by side, and the number of terminals is twice that of a single group of terminal blocks. Therefore, it has the effect of simple structure, convenient assembly, and lower cost.

The secondary object of the present invention is that the insulating seat is formed with a stop wall adjacent to the terminal groove on the two sides above the accommodation groove of the mounting portion, and the base of each group of conductive terminals of the terminal group is exposed on the two sides. At the opposite side of the terminal block, stepped surfaces are formed on the two sides of the base to increase the bonding strength between the conductive terminal and the terminal block. Blocking parts are formed on the two sides above each terminal block, and the terminal blocks can be installed separately. Enter the two receiving grooves of the mounting portion to form opposite settings, and make the contact portions of the conductive terminals penetrate the terminal grooves of the mating portion upward, and then extend into the slots of the insertion space, and wait for the terminal base to be pushed in. , The blocking portion of the terminal base can be positioned against the blocking wall of the receiving groove.

Another object of the present invention is that the insulating seat body is provided with a plurality of convex buckles at the inner wall surface of the accommodation groove of the mounting portion, and the buckle groove of the hollow portion is provided at the outer side of the terminal seat of the terminal group, and the terminal seat is to be After being separately installed in the receiving grooves of the mounting portion, the convex buckles of the receiving grooves can be respectively held in the buckle grooves of the hollow portion and combined into one body. Similarly, two adjacent terminal blocks can be separately separated. It is installed in the accommodating grooves of different lengths of the mounting portion to form a side by side arrangement, so that the number of conductive terminals and terminal blocks that can be installed in the mounting portion is increased and the density is higher.

Still another object of the present invention is that the mounting portion of the insulating base is respectively combined with a grounding sheet, and a plurality of grounds are provided on both grounding surfaces of the grounding sheet to resist contact with the conductive terminals for grounding in the terminal group. When the terminal group transmits high-frequency signals, the multiple overlapping parts of the ground piece can be connected in series with the grounding conductive terminals in the front and rear rows to form a common ground, and the ground conduction path and density can be improved. The effect of shielding and isolation through the grounding lug can further improve the stability of the overall signal transmission.

1‧‧‧Insulated base

11‧‧‧ base

111‧‧‧Fixed slot

112‧‧‧Positioning post

12‧‧‧ Butt Department

120‧‧‧ Plug-in space

1201‧‧‧slot

121‧‧‧Terminal Slot

13‧‧‧Mounting Department

131‧‧‧ positioning body

1311‧‧‧ spacer

1312‧‧‧channel

1313 ‧ ‧ inlay

1314‧‧‧through groove

132‧‧‧Receiving slot

1321‧‧‧stop wall

1322‧‧‧Convex buckle

14‧‧‧Positioning terminal

141‧‧‧ Ontology

142‧‧‧shield plate

143‧‧‧welding foot

2‧‧‧Terminal Set

21‧‧‧Conductive terminal

211‧‧‧base

2111‧‧‧contact surface

2112‧‧‧step difference

2113‧‧‧First bend section

212‧‧‧Contact

213‧‧‧Welding Department

2131‧‧‧The second bending section

22‧‧‧Terminal Block

221‧‧‧ Block

222‧‧‧ Hollow

2221‧‧‧Escape hole

2222‧‧‧ Buckle

3‧‧‧ grounding lug

31‧‧‧ ground plane

311‧‧‧piece

32‧‧‧ Overlap

321‧‧‧ Ground Shrapnel

33‧‧‧Connecting Department

331‧‧‧ resists shrapnel

4‧‧‧Circuit Board

41‧‧‧welding surface

411‧‧‧pad

412‧‧‧perforation

5‧‧‧Edge Card

51‧‧‧Socket

511‧‧‧contact

512‧‧‧Slot

The first figure is a three-dimensional appearance view of a preferred embodiment of the present invention.

The second figure is an exploded perspective view of a preferred embodiment of the present invention.

The third figure is an exploded perspective view from another perspective of the preferred embodiment of the present invention.

The fourth figure is a side sectional view of a preferred embodiment of the present invention.

The fifth figure is a perspective external view of the terminal group of the present invention before assembly.

The sixth figure is a sectional view of the terminal group of the present invention before assembly.

The seventh figure is a side sectional view of the terminal group of the present invention after assembly.

The eighth figure is a three-dimensional appearance view of the grounding sheet of the present invention before assembly.

The ninth figure is a bottom view of the grounding sheet of the present invention after assembly.

The tenth figure is a three-dimensional appearance view of another preferred embodiment of the present invention before being inserted.

The eleventh figure is a side cross-sectional view of another preferred embodiment of the present invention after plugging.

The twelfth figure is a side sectional view of yet another preferred embodiment of the present invention.

In order to achieve the above-mentioned object and effect, the technical means and structure adopted by the present invention, the drawings and detailed description of the structure and function of the preferred embodiment of the present invention are as follows.

Please refer to the first, second, third, and fourth figures, which are three-dimensional appearance views, three-dimensional exploded views, three-dimensional exploded views, and side sectional views of another preferred embodiment of the present invention. It can be seen that the structure of the electrical connector of the present invention is improved to include an insulating base body 1, a terminal group 2 and at least one ground piece 3, wherein the insulating base body 1 has a vertical base 11 and is connected to the base 11. The upper part is provided with a docking part 12 with a plug-in space 120, and a plurality of slots 1201 are formed inside the plug-in space 120 along the length direction, and along the two side walls of each slot 1201 are provided along the length respectively. The plurality of terminal grooves 121 are arranged at intervals in the direction, and the positioning body 131 of the mounting portion 13 is provided along the length direction at the center of the slot 1201 below the base 11 respectively, and openings are formed at the front and rear sides of the positioning body 131. A downward recessed receiving groove 132, and a plurality of opposing spacer plates 1311 are convexly arranged in the direction of the receiving groove 132 at the front and rear side walls of each positioning body 131, and the two adjacent spacer plates 1311 are communicated with each other. The channel 1312 at the terminal slot 121, and Adjacent to the front and rear side walls of the seat body 131, adjacent to the lower part of the partition plate 1311 are respectively provided with caulking grooves 1313 extending a distance along the length direction, and laterally arranged on the positioning bodies 131 between each two adjacent cavities 1313. A plurality of slots 1314 are arranged at intervals.

Furthermore, the lateral surfaces of the mounting portion 13 of the insulating base 1 above the accommodation groove 132 adjacent to the terminal groove 121 on the left and right sides are respectively formed with stop walls 1321, A plurality of convex buckles 1322 are arranged at intervals on the front and rear walls of the two receiving grooves 132 along the length direction, and the bottom surface of the base 11 is located between each two adjacent mounting portions 13 and the left and right sides thereof, respectively. A fixing groove 111 is provided, and positioning pillars 112 protruding downward are provided on the left and right sides of the bottom surface of the base 11. Each fixing groove 111 passes through a body 141 of the positioning terminal 14, respectively. A shielding plate 142 extending between two adjacent slots 1201 of the butting portion 12 is provided, but in actual application, the shielding plate 142 of the positioning terminal 14 at the two sides of the base 11 may be omitted according to the use purpose or structural design, and Welding feet 143 are formed below each of the bodies 141 and pass through the outside of the base 11.

The terminal group 2 includes at least three groups of conductive terminals 21 arranged in front and rear relative to each other, which can be used to transmit signals, power sources (such as positive and negative electrodes), and ground. The base 211 of each group of conductive terminals 21 in the front and rear rows is buried. The incident methods are integrally formed with two oppositely arranged terminal blocks 22, and the two terminal blocks 22 on the two sets of front and rear rows of conductive terminals 21 are formed side by side left and right, and the conductive terminals on each two adjacent terminal blocks 22 The number of terminals of 21 is twice the number of terminals of a single group terminal block 22.

However, the base portion 211 of each of the above-mentioned conductive terminals 21 is exposed on the opposite inner side of the two terminal bases 22 to form a contact surface 2111, respectively. Above the base portion 211, there are suspended contacts penetrating upward from the top of the terminal base 22. A portion 212 is formed on the two sides of the base portion 211 adjacent to the contact portion 212 respectively (as shown in the sixth figure), to increase the bonding strength between the conductive terminal 21 and the terminal base 22, and then to the base portion. Below 211, there are welding portions 213 which are respectively penetrated downward and are exposed at the bottom of the terminal base 22 to form a coplanar surface. In addition, two groups of conductive terminals 21 above the two upper sides of the terminal base 22 adjacent to the conductive terminals 21 are Blocking portions 221 are respectively formed, and 22 phases of each two terminal bases Hollow portions 222 are provided on the outer sides, and the hollow portions 222 respectively have a plurality of escape holes 2221 that penetrate laterally to the base portions 211 of two adjacent conductive terminals 21, and the hollow portions 222 have other escape holes 2221 relative to the conductive terminals 21 in the escape holes 2221. The side opening is recessed with at least one buckle groove 2222 extending a distance along the length direction.

The grounding piece 3 is made of a metal material. In this embodiment, the grounding piece 3 includes a grounding surface 31 having two front and rear opposing pieces 311, and the two pieces 311 are bent outwardly and extended to have a suspension. A plurality of overlapping portions 32 of the grounding spring piece 321 are provided, and each of the ground spring pieces 321 protrudes from the ground surface 31 and is arranged at intervals along the length direction of the sheet body 311. A plurality of connecting portions 33 connecting the two pieces of body 311, and the connecting portion 33 includes suspended holding pieces 331 which are bent inwardly and extended from the two pieces of body 311 to contact each other to form an electrical connection, and each of the holding pieces 331 is arranged at intervals along the longitudinal direction of the sheet body 311.

Please refer to the fifth, sixth, seventh, eighth, and ninth figures for the three-dimensional appearance of the terminal group of the present invention before assembly, the sectional view of the front view after assembly, the sectional view of the side view, and the grounding sheet before assembly. The three-dimensional appearance and bottom view after assembly, as can be clearly seen from the figure, when the insulating base 1 and the terminal group 2 of the present invention are assembled, the two terminal bases 22 on each group of conductive terminals 21 are first They are respectively installed in the accommodation grooves 132 of the mounting portion 13, and the contact portions 212 of the conductive terminals 21 are respectively penetrated out of the terminal grooves 121 of the docking portion 12, and then extend into the sockets 1201 of the insertion space 120, and After the terminal base 22 is pushed in so that the blocking portion 221 abuts on the stop walls 1321 at the left and right sides above the accommodation groove 132, the convex buckles 1322 on the inner wall surface of the accommodation groove 132 can be buckled respectively. The inside of the buckling groove 2222 held in the hollow portion 222 is combined into one body, and the soldering portions 213 of the conductive terminals 21 are respectively penetrated. It is exposed and exposed on the bottom of the base 11 to form a coplanar surface. Similarly, two sets of left and right adjacent terminal blocks 22 can be respectively installed in the receiving grooves 132 of different lengths of the mounting portion 13 by using the above-mentioned assembly method. The number of the plurality of conductive terminals 21 and the terminal base 22 that can be mounted in the mounting portion 13 is increased and the density is higher.

After the assembly of the insulating base 1 and the terminal group 2 is completed, the pieces 311 of the grounding piece 3 on the two grounding surfaces 31 can be pressed into the positioning bodies 131 of the mounting portion 13 respectively, and the two pieces of the body 311 can be respectively embedded in The two side walls of the front and rear sides of the positioning body 131 are adjacent to the embedded groove 1313 formed at a position below the partition plate 1311, and the overlapping portions 32 on the ground surfaces 31 are respectively extended into the two adjacent partition plates 1311 by the ground spring 321. In the formed channel 1312, at the same time, the grounding springs 321 are respectively abutted against the contact surfaces 2111 of the conductive terminals 21 exposed on the opposite sides of the two terminal bases 22, and the grounding tabs 3 are pressed into position, and then the second connection can be made. The connecting portions 33 on the ground 31 are respectively extended into the through grooves 1314 of the positioning body 131 with the resisting elastic pieces 331 to form mutually resisting contact, and the grounding pieces 3 are connected in series to the conductive terminals 21 for grounding in each group of front and rear rows simultaneously. Form a common ground.

In this embodiment, the terminal blocks 2 of the front and rear rows of conductive terminals 21 are respectively embedded and integrally formed with terminal bases 22, and each group of terminal bases 22 can be respectively installed in the receiving grooves 132 of the mounting portion 13 and formed. The relative arrangement makes the number of conductive terminals 21 and terminal bases 22 that can be installed more and more dense. The common-mode design of such terminal bases 22 can be produced with only one mold to simplify the manufacturing process and save the number of molds. The cost is effectively reduced, and two sets of adjacent terminal blocks 22 are arranged side by side, and the number of terminals is twice that of a single group of terminal blocks 22, and the number of conductive terminals 21 on each terminal block 22 is set. For the purpose of fixing, the effect of simple structure, convenient assembly and lower cost is achieved.

Please refer to the tenth and eleventh diagrams, which are respectively a three-dimensional appearance view of a preferred embodiment of the present invention before plugging in and a side sectional view after plugging in. It can be clearly seen from the figure that when When the insulating base 1 is mounted on the circuit board 4, the positioning post 112 of the base 11 is first penetrated into the corresponding through-hole 412 on the soldering surface 41, and the terminal group 2 can be soldered on the soldering portion 213 of the conductive terminal 21. An electrical connection is formed by welding with a corresponding pad 411 on the welding surface 41 by means of SMT welding.

During the process of inserting the edge card 5 into the insulating base 1, its plug-in portion 51 will extend into the slot 1201 along the plug-in space 120 of the docking portion 12, and make the contact portions of the front and rear conductive terminals 21 212 respectively contacts the contacts 511 on the two side surfaces of the plug-in portion 51 to form an electrical connection, and the wall surfaces formed between the two adjacent slots 1201 are respectively formed into the notch 512 protruding into the plug-in portion 51. Inside, so that the plug-in portion 51 of the edge card 5 can be fully inserted into the docking portion 12 for positioning, when the terminal group 2 is transmitting high-frequency signals, the grounding piece 3 can be connected to the grounding spring 321 of the plurality of overlapping portions 32 in series at the same time Connect the conductive terminals 21 for grounding in the front and rear rows to form a common ground, and improve the path and density of ground conduction. The grounding sheet 3 can be used to form a shield and isolation effect between the conductive terminals 21 in the front and rear rows, which can further enhance Stability during overall signal transmission.

Please also refer to the twelfth figure at the same time, which is a side cross-sectional view of another preferred embodiment of the present invention. It can be clearly seen from the figure that the insulating base 1 and the terminal group 2 in this embodiment depend on The method of mounting on a circuit board is the type of a rectangular connector, and the assembly and structure of the linear connector are substantially the same as the above-mentioned embodiment. The two embodiments mainly include only the terminal group 2 and the grounding piece. 3 The bending method is different. For example, the conductive terminal 21 may be bent on the base portion 211 and the welding portion 213 to form at least one first bend according to the type of the horizontal connector. The segment 2113 and the second bending segment 2131, and the second grounding surface 31 of the grounding piece 3 in this embodiment are two side surfaces formed by continuous S-bending of a piece of body 311, and are the same as the second grounding surface 31 of the second embodiment. The structure of the two opposite body 311 is different, and the structural design of the connecting portion 33 can be omitted below the two ground planes 31. It only needs to provide the grounding plate 3 to be integrated inside the insulating base 1, and the two sides of the body 311 The plurality of overlapping portions 32 extending outwards and outwards can be connected to the conductive terminals 21 for grounding in the front and rear rows at the same time by grounding springs 321. For example, the simple modification and equivalent structural changes made by using this creative description and the contents of the drawings, Both should be included in the scope of the patent for this creation and shared with Chen Ming.

Therefore, the present invention is mainly directed to the accommodating grooves 132 of the base 11 of the insulating base 1 on the other side of the docking portion 12 and the mounting portions 13 on the two sides of the positioning body 131, respectively. The plurality of terminal grooves 121 on the two side walls of the groove 1201 are respectively provided with the conductive terminals 21 of the terminal group 2, and the conductive terminals 21 of each group of the terminal group 2 are respectively embedded with two oppositely arranged terminal bases 22. Moreover, the terminal bases 22 are respectively installed in the accommodating grooves 132, so that the number of conductive terminals 21 and the terminal bases 22 can be installed more and more densely. This common mode design of the terminal bases 22 requires only one set of molds. It can be produced to simplify the process and save the number of mold sets, and two sets of adjacent terminal blocks 22 are arranged side by side, and the number of terminals is twice the number of terminals of a single group of terminal blocks 22, thereby achieving a simple structure, convenient assembly and more cost. For the cheap effect.

The above detailed description is only a description of a preferred feasible embodiment of the present invention, but this embodiment is not intended to limit the scope of the patent application of the present invention, and other equivalent changes and modifications made without departing from the spirit of the technology disclosed by the present invention Changes should be included in the scope of patents covered by the present invention.

In summary, the structural improvement of the electrical connector of the present invention is sure to achieve its efficacy and purpose when in use. Therefore, the present invention is an invention with excellent practicality, which actually meets the application requirements of the invention patent. The application is hoped that the trial committee will grant the case as soon as possible to protect the inventor's hard invention. If there is any suspicion in the Bureau, please write to us and the inventor must cooperate with all efforts and be honest.

Claims (10)

An improved structure of an electrical connector includes an insulating base body, a terminal group, and at least one grounding piece, wherein a side of the base of the insulating base body is provided with a docking part with a plugging space, and is inserted in A plurality of slots are formed inside the space along the length direction, and a plurality of terminal slots are respectively provided on the two side wall surfaces of each slot, and a positioning body and a positioning portion of a mounting portion are respectively provided on the other side of the base corresponding to the slots. The recessed receiving grooves on the two sides of the body, and each receiving groove communicates with the terminal groove to form a channel respectively; the terminal group includes at least three groups of oppositely arranged conductive terminals, and is on the base of each group of conductive terminals Two oppositely-positioned terminal blocks are embedded and formed separately, and each terminal block is separately installed in a receiving groove of the mounting portion, so that two adjacent terminal blocks are arranged side by side, and the number of terminals is a single group of terminal blocks. The number of terminals is doubled, and at the side of the base of the conductive terminal, there is a contact part that penetrates the terminal slot and extends into the slot; the grounding piece is connected to the mounting part of the base and Contains two opposite ground planes, It is provided with a ground plane on two abutting contact with the terminal groups formed in series a plurality of overlapping portions of the common ground contacts for grounding. The structural improvement of the electrical connector according to item 1 of the scope of the patent application, wherein the insulating seat body is provided with a plurality of opposing spacer plates protruding at the two side wall surfaces of the positioning body of the mounting portion, and is arranged at two adjacent intervals. Channels are formed between the boards to communicate with the terminal grooves, and the grounding tabs are connected to the positioning body, and a plurality of overlapping portions on the two grounding planes each have grounding springs protruding into the channels, and each grounding spring A common ground is formed for respectively abutting on the bases of the conductive terminals exposed on the inside of the terminal base. According to the structural improvement of the electrical connector described in item 2 of the scope of the patent application, wherein the two side walls of the positioning body of the mounting portion are adjacent to the lower part of the spacer plate and are respectively provided with recesses extending a distance along the length direction, A plurality of slotted grooves are arranged transversely on the positioning body between each two adjacent cavities, and the two ground planes of the grounding lugs are the bodies each having the cavities embedded in the cavities of the positioning body. A plurality of connection portions are provided below the ground plane, and each connection portion includes a resisting elastic piece which is bent and extended inwardly from the two pieces to extend into the through grooves to resist and contact each other to form an electrical connection. According to the improvement of the structure of the electrical connector according to item 1 of the scope of the patent application, wherein the lateral surfaces of the insulating seat body on the two sides above the receiving groove of the mounting portion adjacent to the terminal groove are respectively formed with stop walls, and The base of each group of conductive terminals of the terminal group is respectively exposed on the opposite inner side of the two terminal bases, and a step surface is formed on the two sides of the base to increase the bonding strength between the conductive terminal and the terminal base, and the two sides above the terminal base are formed. Blocking portions are respectively formed on the blocking wall and positioned against the blocking wall. The structural improvement of the electrical connector according to item 1 of the scope of the patent application, wherein the insulating seat body is provided with a plurality of convex buckles at the inner wall surface of the receiving groove of the mounting portion, and the terminal block is provided with two opposite sides of the terminal seat. There are hollow portions on the hollow portions, and there are multiple escape holes on the hollow portions that penetrate laterally to the bases of two adjacent conductive terminals, and each hollow portion is recessed at the escape hole opposite to the other side of the conductive terminal. The buckle is buckled in the buckle groove. The structural improvement of the electrical connector according to item 1 of the scope of the patent application, wherein the bottom surface of the base of the insulating seat body is located between two adjacent mounting portions and two sides thereof are provided with fixing grooves respectively, and The body is provided with a positioning terminal in the groove, and a welding foot is provided at the lower part of each body to penetrate the outside of the base. The structural improvement of the electrical connector according to item 6 of the scope of the patent application, wherein the upper part of the positioning terminal is provided with a shielding plate extending between two adjacent slots of the mating portion. The structural improvement of the electrical connector according to item 1 of the scope of the patent application, wherein the base of the terminal group is exposed on the inside of the terminal base to form a contact surface. The structural improvement of the electrical connector according to item 1 of the scope of the patent application, wherein the conductive terminals of the terminal group are formed on the other side of the base and are respectively provided through the base and exposed outside the base of the terminal base and the insulating base body. A coplanar weld. The structural improvement of the electrical connector according to item 1 of the scope of the patent application, wherein the two ground planes of the ground piece are two side surfaces of a piece of body, and a plurality of overlapping portions are extended outwardly at the two sides of the piece of body. The ground shrapnel.