TWM563683U - Grounding structure of electrical connector - Google Patents

Abstract

The present invention provides a grounding structure of an electrical connector, which is provided with a socket having a socket at a side of the base of the insulating base, and a partition plate and a partition plate at the other side of the base. The plurality of terminal slots in the side wall of the slot and the side wall of the slot are respectively connected to the plurality of terminal slots of the receiving slot, and the conductive terminals are disposed opposite to the terminal group, and then the opposite terminal blocks are respectively connected to the conductive terminals. The grounding piece combined with the base plate at the partition plate includes two opposite grounding faces, and the plurality of overlapping portions with grounding elastic pieces are disposed on the two grounding surfaces, and the grounding piece is grounded. The shrapnel can be connected to the grounding conductive terminals in the terminal group in a manner that does not change the spacing and the appearance of the terminals of the electrical connector, and forms a shield to improve the crosstalk resonance point of the high-frequency signal transmission. In turn, optimizing product performance also simplifies the overall structure, resulting in relatively low cost, but with good high frequency characteristics.

Description

Grounding structure of electrical connector

The present invention provides a grounding structure of an electrical connector, in particular, a grounding piece is integrated inside the insulating seat body, and the grounding elastic piece of the grounding piece can be connected to the terminal at the same time without changing the spacing and appearance of the terminal of the electrical connector. The grounding terminals in the group form a shield to improve the crosstalk resonance point during high-frequency signal transmission, thereby optimizing product performance.

Press, the general connector is used in the connection between the electronic signal and the power supply and its accessories, the main function is to provide a connection between various electronic devices or devices, and to ensure that the signal can be accurately transmitted, and the connector with its application products Different from power and environment, it has developed various types and can be applied to computers, servers, computer peripherals (such as keyboards, mice, printers, etc.) and peripheral devices on the car (such as Used in car computers, satellite navigation, etc., telecommunications and communication equipment and household appliances.

Furthermore, since today's electronic product designs tend to be light, thin, short, and small, and in order to reduce the size of various electronic products, the connectors inside the electronic products need to be more precise and miniaturized, and the overall structural strength is also required. Intensified, in response to current development trends, and general connectors (such as board-to-board connectors, wire-to-board connectors, etc.) usually use a male connector and a female connector for mating and The signal or power is transmitted to the control circuit through the circuit board to perform the corresponding operation function, when the male connector and the female connector are seated When the body is docked, the terminal sets on the male seat and the female seat can be brought into contact with each other, thereby achieving electrical connection between the two parallel opposing circuit boards or cables and the circuit board.

In addition, in addition to the increasingly miniaturized design of the connector, the requirements for transmission speed and bandwidth are also getting higher and higher. The problems caused by high-frequency signal transmission are endless, and the connector is tiny. The speed of transmission and transmission is greatly increased, and the number of terminal groups is increased 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. Faster growth, the signal interference problem of the connector itself will be more serious, for high-frequency connectors, in many signal integrity problems, especially cross-talk interference is the most serious problem. The conventional high-frequency connector includes an insulating body, a plurality of grounding terminals mounted in the lower row of terminals in the insulating body, and a grounding piece for connecting the grounding terminals in series, but the structure of the grounding piece is complicated and needs to be Firstly assembled with the engaging member made of insulating material, and then can be further installed inside the insulating body through the engaging member, and the elastic arms of the grounding piece are respectively in contact with the grounding. The series is connected in series to form a common ground. The grounding piece is mounted on the inside of the insulating body through the engaging member. The component and assembly steps are too many and inconvenient, and the production and assembly costs cannot be reduced. The industry has redesigned it to solve it effectively.

Therefore, in view of the above-mentioned problems and shortcomings, the new creators have collected the relevant materials through various evaluations and considerations, and have used the trial and modification of many years of R&D experience in this industry to start the grounding of such electrical connectors. The birth of a new structure.

The main purpose of the present invention is that the base of the insulating base is at the other side of the abutting portion, and is provided with a partitioning plate and a receiving groove at two sides thereof, and the terminals of the abutting portion on the side wall surface of the slot 2 The conductive terminals of the terminal group are respectively disposed in the slot, and the opposite terminal sockets of the conductive terminals are respectively mounted in the receiving slots, and the grounding strips of the bases at the spacers comprise two opposite sides. a grounding surface, and a grounding elastic piece of a plurality of overlapping portions are disposed on the two grounding surfaces, and each of the grounding elastic pieces is respectively in contact with the conductive terminal for grounding in the terminal group, and when the terminal group transmits the high frequency signal, It can be designed by the grounding shrapnel structure of the grounding piece. When the spacing and appearance of the terminals of the electrical connector are not changed, the conductive terminals for grounding in the terminal group are connected to the common ground, and the grounding piece is disposed between the conductive terminals to form a shielding. The effect is to improve the crosstalk resonance point of high frequency signal transmission, thereby optimizing product performance.

The secondary purpose of the present invention is that when the grounding piece is coupled to the insulating body, the grounding piece can be pressed into the partition between the bases, and the two grounding surfaces are respectively embedded between the partitioning plate and the two terminal block. In the gap, the two bodies can be clamped against the two side surfaces of the spacer plate, and the grounding elastic pieces of the lap portion are respectively brought into contact with the conductive terminals for grounding, and the grounding piece is directly pressed against the insulating seat. The body does not need to be installed through another fixing member, which simplifies the overall structure and relatively reduces the cost, but has good high frequency characteristics.

1‧‧‧Insulated body

11‧‧‧Base

111‧‧‧ Spacer

112‧‧‧ accommodating slots

113‧‧‧ buttonhole

114‧‧‧Positioning column

12‧‧‧Docking Department

120‧‧‧ slots

121‧‧‧Terminal slot

2‧‧‧Terminal group

21‧‧‧Electrical terminals

211‧‧‧ base

2111‧‧‧First bend

212‧‧‧Contacts

213‧‧‧Weld Department

2131‧‧‧second bend

22‧‧‧ terminal block

221‧‧‧ slotting

222‧‧‧Glosses

3‧‧‧ Grounding piece

30‧‧‧ docking space

31‧‧‧ Ground plane

311‧‧‧Piece

312‧‧‧Connecting piece

32‧‧‧ lap joint

321‧‧‧ Grounding shrapnel

3211‧‧‧Boom arm

3212‧‧‧Contact end

4‧‧‧Shield housing

41‧‧‧Ontology

410‧‧‧Dock space

411‧‧‧welding feet

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

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

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

The fourth figure is a three-dimensional appearance of the creation terminal set before assembly.

The fifth figure is a side cross-sectional view of the original terminal set after assembly.

The sixth figure is a three-dimensional appearance of the creation grounding piece before assembly.

The seventh figure is a side cross-sectional view of the creation grounding piece after assembly.

Figure 8 is a side cross-sectional view of the preferred embodiment of the present invention.

Figure 9 is a side elevational cross-sectional view of the preferred embodiment of the present invention.

Figure 10 is a side cross-sectional view of another preferred embodiment of the present invention.

In order to achieve the above objectives and effects, the technical means and its construction adopted in the present invention are described in detail in the preferred embodiment of the present invention, and the structure and function are as follows.

Please refer to the first, second and third figures, which are respectively a three-dimensional external view, a three-dimensional exploded view and a three-dimensional exploded view of another preferred embodiment of the present invention. It can be clearly seen from the figure that the electric power of the present creation is The grounding structure of the connector includes an insulating base 1, a terminal block 2, at least one grounding piece 3, and a shielding case 4, wherein the insulating base 1 has a vertical base 11 and is above the base 11. An abutting portion 12 having a slot 120 is disposed therein, and a partition plate 111 is disposed along a longitudinal direction of the bottom portion of the base plate 11, and a recessed downwardly-shaped recess is formed at both sides of the partition plate 111. A plurality of fastening holes 113 are respectively disposed at two sides of the inner wall surface of the front and rear sides of the two receiving slots 112, and a positioning pillar 114 protruding downward is respectively disposed at two sides of the bottom surface of the partitioning plate 111, and the butting portion 12 is further disposed. A plurality of terminal slots 121 are disposed at intervals along the length direction of the front and rear side walls of the slot 120, and a channel is formed by the terminal slots 121 respectively communicating with the receiving slots 112.

The terminal group 2 includes a plurality of conductive terminals 21 which are disposed opposite to each other for transmitting signals, power sources (such as positive and negative electrodes) and grounding, and conductive terminals in front and rear rows. In the embodiment, the base portion 211 of the 21 is integrally formed with two oppositely disposed terminal blocks 22 by means of burying, but in actual application, the two terminal blocks 22 may be separately assembled by means of assembly. The conductive terminals 21 are arranged in front and rear, and the floating contacts 212 extending upwardly from the top of the terminal block 22 are respectively disposed above the base portion 211 of the conductive terminals 21, and the lower portions of the base portions 211 are respectively disposed downwardly and exposed. The bottom of the terminal block 22 forms a coplanar soldering portion 213; the inner wall surface of the terminal block 22 corresponds to the grounding conductive terminal 21 (such as the first, fourth, and seventh of the nineteen terminals in the front and rear rows, The tenth, thirteenth, sixteenth and nineteenth terminals are respectively longitudinally sectioned with a slot 221 extending to the surface of the base 211, and the front and rear surfaces of the two terminal block 22 are two A plurality of knobs 222 are provided at the sides.

The grounding strip 3 is integrally formed of a metal material, and includes a grounding surface 31 having two front and rear opposing sheets 311, and a connecting piece 312 for connecting the two sheets 311 below the grounding surface 31, and the two sheets 311 and A U-shaped mating space 30 is formed between the connecting pieces 312, and a plurality of overlapping portions 32 having a suspended grounding elastic piece 321 are bent and extended in opposite directions of the mating space 30 on the two-piece body 311, and the grounding elastic piece 321 is along the edge. The strips 311 are spaced apart from each other in the longitudinal direction, and each of the grounding elastic pieces 321 has an elastic arm 3211 which is inclined upwardly toward the docking space 30 and then reflexed outwardly from the grounding surface 31, and each of the elastic arms 3211 is respectively below The inwardly bent extension has a contact end 3212.

The shielding shell 4 includes a body 41 having a plug-in space 410 therein, and a plurality of soldering legs 411 extending downwardly at the front and rear sides of the body 41.

Please refer to the fourth, fifth, sixth, seventh, eighth and ninth diagrams for the three-dimensional appearance of the original terminal group before assembly, the side profile view after assembly, and the grounding piece in the group. A front view of the pre-installation, a side cross-sectional view after assembly, a side cross-sectional view of the preferred embodiment, and another side cross-sectional view, as is clear from the figure, when the terminal set 2 of the present invention is assembled The two terminal blocks 22 can be respectively inserted into the receiving slots 112 of the base 11 together with the plurality of conductive terminals 21 of the terminal block 22, and the contact portions 212 of the conductive terminals 21 are respectively passed upwardly out of the butting portion 12 The terminal slot 121 extends into the slot 120, and the terminal block 22 is pushed into the positioning, and the buckle 222 of the terminal block 22 is respectively fastened in the buttonhole 113 of the base 11 to be integrated. The soldering portions 213 of the conductive terminals 21 are respectively passed out and exposed to the bottom of the base 11 to form a common plane.

After the assembly of the insulating base 1 and the terminal group 2 is completed, the opening of the mating space 30 of the grounding strip 3 can be pressed in the direction of the partition 111 between the bases 11, and the sheets 311 of the two grounding surfaces 31 are respectively embedded in The predetermined gap formed between the spacer 111 and the two terminal blocks 22, and the grounding elastic pieces 321 of the overlapping portions 32 respectively extend into the corresponding slots 221 of the terminal block 22 through the contact ends 3212, and then resist the contact On the base portion 211 of the conductive terminal 21, the grounding elastic piece 321 is elastically deformed inwardly by the elastic arm 3211 acting as a fulcrum against the spacer plate 111, and the grounding piece 3 is pressed into the positioning, so that the two grounding surfaces 31 can be The sheet body 311 is oppositely clamped to the two side surfaces of the partition plate 111, and is electrically connected to the grounding elastic pieces 321 of the lap portion 32 to be in contact with the conductive terminals 21 for front and rear grounding.

In this embodiment, the outer portion of the insulating base 1 can further cover the main body 41 of the shielded housing 4, and the insertion space 410 of the main body 41 is connected with the slot 120 of the abutting portion 12, but in practice When applied, the structural design of the shielding case 4 can be omitted according to the actual application. When the insulating base 1 is mounted on the circuit board, the positioning of the base 11 is first performed. The column 114 is inserted into the corresponding limiting hole on the circuit board, and the soldering portion 213 of the terminal group 2 at the conductive terminal 21 and the soldering leg 411 of the shielding case 4 on the body 41 can utilize a through hole or a surface. Adhesive technology (SMT) soldering is electrically connected to corresponding contacts or perforated solder joints on the board.

When the external electrical connector is inserted, the tongue plate extends into the slot 120 along the abutting portion 12 of the insulating base 1 and the contact portions 212 of the front and rear conductive terminals 21 are respectively brought into contact with each other. The contacts on the two side surfaces of the tongue plate are electrically connected. When the terminal group 2 transmits the high frequency signal, the grounding elastic piece 321 of the grounding piece 3 to the plurality of overlapping portions 32 does not change the spacing and appearance of the electrical connector terminals. At the same time, the conductive terminals 21 for grounding in the front and rear rows are connected in common to increase the path and density of the ground conduction, and the electromagnetic waves and crosstalk interference formed by the conductive terminals 21 can be induced and absorbed by the grounding strip 3, and then The grounding conductive terminal 21 is guided and transmitted to the circuit board for grounding release, and can be disposed between the front and rear rows of the conductive terminals 21 through the grounding strip 3 to form a shielding effect to improve the crosstalk resonance point of the high frequency signal transmission. In order to optimize the performance of the product, the grounding piece 3 can be directly pressed into the insulating base body 1 without installing through another fixing member, which can simplify the overall structure and relatively reduce the cost, but also has Good high-frequency characteristics.

Please also refer to the tenth figure, 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 are mounted on the present embodiment. The manner of the circuit board is a type of a straight-angle connector, and is substantially the same as the assembly and structure of the above-described embodiment. The two embodiments mainly have only the terminal group 2 and the grounding plate 3 bent. The folding manners are different. For example, the conductive terminals 21 may be respectively bent on the base portion 211 and the welded portion 213 to form at least one first bending portion 2 according to the shape of the horizontal connector. 111 and the second bending section 2131, and the grounding piece 3 can be a continuous bending S-shape in the embodiment, and is different from the U-shaped embodiment of the above embodiment, and the two grounding surfaces 31 of the grounding piece 3 are The two sides of the body 311 and the grounding elastic pieces 321 of the plurality of overlapping portions 32 are oppositely extended outwardly at the front and rear sides of the body 311, and the body 311 is abutted against the partition 111 between the bases 11 At the same time, the grounding elastic pieces 321 are respectively brought into contact with the conductive terminals 21 for grounding in the front and rear rows to form a common ground, and only need to provide the grounding piece 3 to be crimped to be bonded to the inside of the insulating base 1 and connected The grounding shrapnel 321 of the plurality of lap joints 32 of the ground 31 is simultaneously connected to the conductive terminals 21 for grounding in the front and rear rows, and the simple modification and equivalent structural changes of the present specification and the drawings are equally applicable. It is included in the scope of this creation patent and is given to Chen Ming.

Therefore, the present invention is mainly directed to the pedestal 11 of the insulating base 1 at the other side of the abutting portion 12, which is provided with the partitioning plate 111 and the accommodating groove 112 at the two sides thereof, and on the two sides of the slot 120 of the abutting portion 12 The terminal blocks 121 of the wall are respectively provided with the oppositely disposed conductive terminals 21 of the terminal group 2, and the opposite terminal blocks 22 of the conductive terminals 21 are respectively inserted into the receiving slots 112, and the base 11 is respectively inserted into the receiving slots 112. The grounding strips 3 joined to the spacers 111 include two opposing ground planes 31, and a plurality of overlapping portions 32 having suspended grounding springs 321 are disposed on the two grounding surfaces 31, and the grounding strips 3 can be grounded. The structure of the elastic piece 321 is designed so as not to change the spacing and appearance of the terminals of the electrical connector, and the conductive terminals 21 for grounding in the serially connected terminal group 2 are grounded together, and a shielding effect is formed to improve crosstalk during high-frequency signal transmission. Resonance points to optimize product performance.

The above detailed description is illustrative of a preferred embodiment of the present invention, but the embodiment is not intended to limit the scope of the patent application of the present invention. Equivalent changes and modifications made in the spirit of the invention should be included in the scope of the patent covered by this creation.

In summary, the grounding structure of the above-mentioned electrical connector can achieve its efficacy and purpose. Therefore, this creation is a practical and excellent creation, which is in line with the application requirements of the new patent, and is submitted according to law. The trial committee will grant this case as soon as possible to protect the hard work of the new creators. If there is any doubt in the bureau, please do not hesitate to give instructions. The new creators will try their best to cooperate with them.

Claims (8)

The grounding structure of the electrical connector includes an insulating base, a terminal set and at least one grounding piece, wherein: the base of the insulating base is provided with a socket with a socket, and is located at the base The other side is provided with a partition plate along the length direction and a recessed receiving groove at the two sides of the partition plate, and a plurality of terminal slots are provided at the side wall surface of the slot of the docking portion, and the terminal slots are respectively connected to the receiving slots. Forming a channel; the terminal group includes a plurality of oppositely disposed conductive terminals, and a terminal block respectively mounted in the receiving groove of the base is coupled to the base of the conductive terminal, and each of the base portions is respectively provided with a through hole The terminal slot of the mating portion extends into the contact portion in the slot; the grounding strip is coupled to the partition between the bases, and the grounding strip includes two opposing ground planes, and the plurality of ground planes are provided with a plurality of ground planes The lap joint is bent outwardly to extend the suspended grounding elastic piece, and each grounding elastic piece is respectively connected to the grounding conductive terminal of the terminal group to form a common ground. The grounding structure of the electrical connector of claim 1, wherein the insulating seat body is provided with a plurality of fastening holes at the inner wall surface of the two receiving slots of the base, and is disposed on the outer surface of the terminal block of the terminal block. Each of the plurality of buckles is fastened in the buttonhole. The grounding structure of the electrical connector of claim 1, wherein the insulating base body is provided with a protruding positioning post at each of the two sides of the partition between the bases. The grounding structure of the electrical connector of claim 1, wherein the conductive terminals of the terminal group are respectively formed on the other side of the base and are formed outside the base which is exposed and exposed to the terminal block and the insulating base. A total of flat welding parts. The grounding structure of the electrical connector according to the first aspect of the invention, wherein the inner wall surface of the terminal block of the terminal group corresponds to the grounding conductive terminal for longitudinally dissecting the slot extending to the surface of the base, and grounding The lap joints of the sheets are respectively protruded into the slots by the grounding elastic pieces to form an electrical connection with the conductive terminals. The grounding structure of the electrical connector of claim 1, wherein the grounding surface of the grounding strip is a sheet having opposite sides of the spacer plate opposite to the base and is used for connecting the two bodies. The connecting piece has a plurality of overlapping portions with a grounding elastic piece extending outwardly on the two pieces, and the grounding elastic pieces are arranged along the length direction of the piece. The grounding structure of the electrical connector of the sixth aspect of the invention, wherein the grounding piece and the connecting piece form a docking space, and the grounding elastic piece of the overlapping portion has a first facing butt joint The space is inclined upwardly and then folded outward to protrude from the elastic arm at the grounding surface, and each of the elastic arms is bent inwardly to extend the contact end. The grounding structure of the electrical connector of claim 1, wherein the grounding surface of the grounding piece is a two-side surface of the body, and the two sides of the body are oppositely outwardly folded and extended. The grounding elastic piece of the connecting portion, and the grounding elastic pieces are arranged along the length direction of the piece body, and then have the elastic arms protruding outwardly from the grounding surface on the grounding elastic piece and are bent inward by the elastic arm. Contact end.