TWM565427U - Grounding structure of electrical connector - Google Patents

Abstract

The present invention provides a grounding structure of an electrical connector, which is provided with an abutting portion having a plugging space at a base side of the insulating base body, and a mounting portion is disposed on the positioning body at the other side of the base. The terminal group disposed at the two sides of the plurality of terminal slots at the two side wall surfaces of the plug-in space includes a plurality of conductive terminals, and the conductive terminals are embedded and formed on the base portion and are respectively mounted in the receiving slots. The terminal block and the grounding piece on the two sides of the positioning portion of the mounting portion respectively comprise a grounding surface having a two-piece body, and the grounding elastic piece with the overlapping portion is bent outwardly on the two bodies, the grounding Without changing the terminal spacing and appearance of the electrical connector, the grounding elastic piece of the lap portion can be brought into contact with the conductive terminal for grounding in the terminal group while being serially connected to form a common ground, and the path and density of ground conduction can be improved. The shielding and isolation effects can be formed through the grounding strip, which can improve the stability of the overall signal transmission.

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 base body, and the grounding piece of the two grounding surfaces is abutted against the grounding elastic piece of the terminal group by the grounding elastic piece of the overlapping part. The terminals are connected in series at the same time to form a common ground, which improves the path and density of the ground conduction to ensure the stability of the overall signal transmission.

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 mating portion, and is provided with a mounting groove at the two sides of the positioning body, and the second side wall of the space is inserted into the butt portion. The terminal group pierced in the plurality of terminal slots at the surface includes a plurality of conductive terminals, and the conductive terminals are embedded on the base portion to form terminal blocks respectively mounted in the receiving slots, and the two sides of the positioning portions of the mounting portions are respectively The grounding piece is combined with a grounding surface having two bodies, and the two pieces are bent outward to extend a lap joint with a grounding elastic piece, and the grounding piece does not change the terminal spacing and the appearance size of the electrical connector. The grounding elastic piece of the lap joint can be brought into contact with the conductive terminal for grounding in the terminal group to form a common ground in series, and the path and density of the ground conduction can be improved, and can be disposed on the front and rear conductive terminals through the grounding piece. The effect of shielding and isolation is combined to improve the stability of the overall signal transmission.

The secondary purpose of the present invention is that when the grounding piece is coupled to the insulating body, the piece of the grounding piece on the two grounding surfaces can be respectively embedded in the recessed groove of the mounting portion at the side wall surface of the positioning body, and The grounding elastic piece of the lap joint is respectively inserted into the channel formed between the two adjacent partition plates, and then the grounding contact conductive contact terminal forms a common ground, and the grounding piece is directly pressed into the insulating seat body. It needs to be installed through another fixing member, which simplifies the overall structure and reduces the cost relatively, but has good high frequency characteristics.

1‧‧‧Insulated body

11‧‧‧Base

111‧‧‧fixed slot

112‧‧‧Positioning column

12‧‧‧Docking Department

120‧‧‧Dock space

1201‧‧‧Slots

121‧‧‧Terminal slot

13‧‧‧Installation Department

131‧‧‧ Positioning body

1311‧‧‧ Spacer

1312‧‧‧ channel

1313‧‧‧Inlay

1314‧‧‧through slot

132‧‧‧ accommodating slots

133‧‧‧Gel buckle

14‧‧‧ Positioning terminal

141‧‧‧ Ontology

142‧‧‧Shield

143‧‧‧welding feet

2‧‧‧Terminal group

21‧‧‧Electrical terminals

211‧‧‧ base

212‧‧‧Contacts

213‧‧‧Weld Department

22‧‧‧ terminal block

221‧‧‧ buckle groove

3‧‧‧ Grounding piece

31‧‧‧ Ground plane

311‧‧‧Piece

32‧‧‧ lap joint

321‧‧‧ Grounding shrapnel

3211‧‧‧Boom arm

3212‧‧‧Contact end

33‧‧‧Connecting Department

331‧‧‧Resist the shrapnel

4‧‧‧ boards

41‧‧‧welding surface

411‧‧‧ solder pads

412‧‧‧Perforation

5‧‧‧Edge card

51‧‧‧Interface

511‧‧‧Contacts

512‧‧‧ Missing slot

The first picture is a three-dimensional appearance of the creation.

The second picture is a three-dimensional exploded view of the creation.

The third figure is a three-dimensional exploded view of another perspective of the creation.

The fourth figure is a side cross-sectional view of the creation.

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

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

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

The eighth figure is a bottom view of the created grounding piece after assembly.

The ninth drawing is a three-dimensional appearance of the preferred embodiment of the present invention before being inserted.

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

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, third and fourth figures, which are respectively the three-dimensional appearance, the three-dimensional exploded view, the three-dimensional exploded view and the side-viewing view of another perspective. It can be clearly seen from the figure. The grounding structure of the created electrical connector includes an insulating base 1, a terminal set 2 and at least one grounding strip 3, wherein the insulating base 1 has a vertical base 11 and is disposed above the base 11. The internal portion has a mating portion 12 of the insertion space 120, and a plurality of slots 1201 are formed in the interior of the insertion space 120 along the length direction, and are respectively arranged along the length direction at the front and rear side wall surfaces of each slot 1201. A plurality of terminal slots 121 are defined, and a positioning body 131 of at least one mounting portion 13 is disposed along the longitudinal direction of the bottom of the socket 11 and an opening is formed at the front and rear sides of the positioning body 131. The recessed accommodating groove 132 has a plurality of opposing partition plates 1311 protruding toward the accommodating groove 132 in the front and rear side wall faces of each of the positioning bodies 131, and each of the two adjacent partition plates 1311 is formed to communicate with the terminal groove respectively. Channel 1312 at 121, and positioning body 13 1 The front and rear side wall faces are adjacent to the lower portion of the partition plate 1311, respectively, and are respectively arranged along the length direction. The plurality of slots 1314 are spaced apart from each other on the positioning body 131 between the two adjacent slots 1313.

In addition, the mounting portion 13 of the insulating base 1 is provided with a plurality of protruding buckles 133 at the front and rear wall surfaces of the two receiving slots 132, and is located between the two adjacent mounting portions 13 and the left and right sides thereof on the bottom surface of the base 11. The fixing slots 111 are respectively disposed at the sides, and the positioning pillars 112 protruding downward are respectively disposed at the left and right sides of the bottom surface of the base 11 , and the positioning terminals 14 are respectively disposed in the fixing slots 111 , and the body of the positioning terminal 14 is respectively disposed. The shielding plate 142 extending between the two adjacent slots 1201 of the abutting portion 12 is disposed at the upper portion of the 141. However, in practical applications, the shielding plate 142 of the positioning terminal 14 at the two sides of the base 11 may be omitted according to the structural design, and Solder legs 143 that pass outside the base 11 are respectively disposed below each of the bodies 141.

The terminal group 2 includes at least three sets of a plurality of conductive terminals 21 disposed opposite to each other for transmitting signals, power sources (such as positive and negative electrodes) and grounding, and is buried on the base 211 of each set of front and rear rows of conductive terminals 21. The incident manner is integrally formed with two oppositely disposed terminal blocks 22, and the two terminal blocks 22 of the two sets of front and rear rows of conductive terminals 21 are formed side by side adjacent to each other, and the conductive terminals on each of the two adjacent terminal blocks 22 are formed. The number of terminals of 21 is twice the number of terminals of the single-group terminal block 22.

However, the base portions 211 of each of the sets of the conductive terminals 21 are respectively exposed to the opposite sides of the two terminal blocks 22 to form a coplanar plane, and above the base portion 211 are provided with a floating contact portion extending upward from the top of the terminal block 22 212, and a soldering portion 213 which is exposed downwardly and exposed at the bottom of the terminal block 22 is respectively disposed under the base portion 211, and at least one of the two terminal blocks 22 of each of the sets of conductive terminals 21 is recessed along the outer side. A buckle groove 221 extending a distance in the longitudinal direction.

The grounding strip 3 is made of a metal material. In the embodiment, the grounding strip 3 includes a grounding surface 31 having two opposing bodies 311, and each of the two bodies 311 is bent outwardly and has at least one The grounding elastic piece 321 is overlapped with the grounding elastic piece 321 , and the grounding elastic pieces 321 are arranged along the longitudinal direction of the piece 311 , and then the grounding elastic piece 321 has the first upwardly extending and then outwardly folded outward to protrude from the grounding surface 31 . The arm 3211 and the lower end of each of the elastic arms 3211 are respectively bent inwardly to extend the contact end 3212, and the grounding surface 31 of the grounding piece 3 is respectively provided with a connecting portion 33 for connecting the two bodies 311, the connecting portion 33 The floating elastic resisting pieces 331 are formed by bending inwardly from the lower side of the sheet body 311 to form an electrical connection with each other, and the resisting elastic pieces 331 are arranged at intervals along the longitudinal direction of the sheet body 311.

Please refer to the fifth, sixth, seventh and eighth figures for the three-dimensional appearance of the original terminal group before assembly, the side view of the assembled side view, the three-dimensional appearance of the grounding piece before assembly and the assembly. In the bottom view, it can be clearly seen from the figure that when the insulating base 1 and the terminal set 2 of the present invention are assembled, the two terminal blocks 22 on each set of the conductive terminals 21 are respectively mounted in the mounting portion. The receiving portion 212 of the conductive terminal 21 is inserted into the slot 1201 of the plugging space 120, and the terminal block 22 is pushed into the slot 1201 of the plugging space 120. Positioning, the buckles 133 are respectively fastened in the buckle groove 221 of the terminal block 22 to be integrated, and the soldering portions 213 of the conductive terminals 21 are respectively passed out and exposed at the bottom of the base 11 to form a common plane. Similarly, The two sets of adjacent terminal blocks 22 can be respectively mounted in the accommodating slots 132 of different lengths of the mounting portion 13 to form side by side, so that the plurality of conductive terminals 21 are matched with the terminal block 22 in the mounting portion 13. The number of installables is increased and the density is higher.

After the insulating body 1 and the terminal group 2 are assembled, the grounding piece 3 can be pressed into the body 311 of the two grounding surfaces 31 in the direction of the positioning body 131 of the mounting portion 13, and the two bodies 311 are respectively embedded in the body 311. The front and rear side wall surfaces of the positioning body 131 are adjacent to the recessed groove 1313 disposed at the lower portion of the partitioning plate 1311, and the overlapping portions 32 of the grounding surfaces 31 are respectively protruded between the two adjacent partitioning plates 1311 by the grounding elastic pieces 321 . In the formed channel 1312, the contact end 3212 of the elastic arm 3211 is respectively brought into contact with the exposed base portion 211 of the conductive terminal 21, and the grounding piece 3 is pressed into the position to connect the two grounding surfaces 31. The portion 33 is formed by the resisting elastic pieces 331 extending into the through grooves 1314 of the positioning body 131 to form a mutual contact, and the grounding piece 3 is simultaneously connected in series with the conductive terminals 21 for grounding in each of the front and rear rows to form a common ground. The sheet body 311 of the two grounding surfaces 31 can be directly pressed into the insulating base body 1 without mounting through another fixing member, so that the overall structure can be simplified and the cost can be relatively reduced, but the frequency is good. .

Please also refer to the ninth and tenth drawings, which are respectively a perspective view of the preferred embodiment of the present invention before insertion and a side cross-sectional view after plugging, which can be clearly seen from the figure, when the insulating seat is 1 When the circuit board 4 is mounted on the circuit board 4, the positioning post 112 of the base 11 is inserted into the corresponding through hole 412 of the soldering surface 41, and the soldering portion 213 of the terminal group 2 at the conductive terminal 21 can be adhered by the surface. The technical (SMT) welding method is electrically connected to the corresponding solder pad 411 on the soldering surface 41.

When the edge card 5 is inserted into the insulating base 1 , the insertion portion 51 extends into the slot 1201 along the insertion space 120 of the abutting portion 12 and the contact portion of the front and rear conductive terminals 21 . 212 is electrically connected to the contact point 511 contacting the two side surfaces of the plug portion 51, and the wall surface formed between each adjacent slot 1201 is The insertion portion 51 of the edge card 5 can be fully inserted into the abutting portion 12, and when the terminal group 2 transmits the high frequency signal, the grounding piece 3 can be used for multiple times. The grounding elastic piece 321 of the connecting portion 32 simultaneously connects the conductive terminals 21 for grounding in the front and rear rows to the common ground without changing the pitch and the external dimensions of the electrical connector terminals, and improves the path and density of the ground conduction, and the grounding piece can be transmitted through the grounding piece. 3 is to form a shielding and isolation between the front and rear rows of the conductive terminals 21, which can improve the stability of the overall signal transmission.

Therefore, the present invention is mainly for the base 11 of the insulating base 1 at the other side of the abutting portion 12, which is provided with a mounting portion 13 and is pierced in a plurality of terminal slots 121 at the two side wall surfaces of the plugging space 120. The group 2 includes a plurality of conductive terminals 21, and the terminal blocks 22 embedded in the accommodating grooves 132 respectively formed at the two sides of the positioning body 131 are embedded and exposed on the conductive terminals 21, and the grounding strips 3 include two grounding surfaces 31 respectively combined The lands 311 are disposed on the two sides of the locating body 131, and the lands 321 having the grounding elastic pieces 321 are bent outwardly on the two bodies 311. The grounding piece 3 is designed to be grounded by the lap 32. The elastic piece 321 is in contact with the conductive terminal 21 for grounding in the terminal group 2, and is connected in series to form a common ground, and the path and density of the ground conduction are improved, and the shielding and isolation effect can be formed through the grounding piece 3, thereby improving the overall signal. Stability during transmission.

The above detailed description is intended to be illustrative of a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and other equivalents and modifications may be made without departing from the spirit of the invention. Changes are to be included in the scope of patents covered by this creation.

In summary, the grounding structure of the above-mentioned electrical connector can achieve its efficacy and purpose, so this creation is a practical and excellent creation, which is in line with the new patent. Apply for the requirements, and apply in accordance with the law. I hope that the trial committee will grant the 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 (10)

The grounding structure of the electrical connector includes an insulating base body, a terminal set and at least one grounding piece, wherein: the base side of the insulating base body is provided with an abutting portion with a plugging space, and is inserted A plurality of terminal slots are disposed at the side wall surfaces of the space, and at least one of the positioning portions of the mounting portion and the recessed receiving slots at the two sides of the positioning body are disposed at the other side of the base, and the receiving slots are connected to the terminals. A channel is formed in the slot; the terminal group includes a plurality of conductive terminals, and a terminal block formed in the receiving groove of the mounting portion is formed on the base of the conductive terminal, and each base portion is separately provided a contact portion extending through the terminal groove of the abutting portion and extending into the insertion space; the grounding piece includes two opposite grounding surfaces, and both of the two grounding surfaces have a sheet body coupled to the two sides of the positioning body of the mounting portion And the two pieces are bent outwardly to extend at least one overlapping portion with a suspended grounding elastic piece, and the grounding elastic pieces respectively abut against the grounding conductive terminals of the terminal group to form a common ground. . The grounding structure of the electrical connector according to the first aspect of the invention, wherein the insulating seat body is convexly provided with a plurality of opposing partition plates at the side wall surfaces of the positioning body of the mounting portion, and is spaced apart from each other. Each of the plates is formed with a channel communicating with the terminal slot, and the chip system of the grounding plate on the grounding surface is respectively coupled to the sidewall surface of the positioning body, and the grounding elastic pieces of the overlapping portion respectively extend into the channel, and each grounding The elastic piece forms a common ground on the base portion which is exposed to the inner side of the terminal block, and is respectively provided with a connecting portion for abutting contact with each other to abut against the elastic piece. The grounding structure of the electrical connector of claim 2, wherein the mounting portion The side wall surface of the positioning body is adjacent to the lower portion of the partitioning plate, and is respectively formed with a recess extending along the length direction by a distance, and is horizontally sectioned and arranged at intervals on the positioning body between the two adjacent recessed grooves. The grounding piece is embedded in the groove of the positioning body by the two grounding surfaces, and the connecting portions on the two grounding surfaces are formed to resist the contact of the elastic pieces into the groove. Sexual connection. The grounding structure of the electrical connector of claim 1, wherein the grounding piece has a spring arm extending upwardly and outwardly at a grounding surface on the grounding elastic piece of each of the overlapping portions, and The contact ends are bent inwardly by the elastic arms. The grounding structure of the electrical connector of claim 1, wherein the grounding piece is respectively provided at a lower portion of the grounding surface for connecting the two bodies. The grounding structure of the electrical connector of claim 5, wherein the connecting portion comprises a suspended elastic piece that is bent inwardly from the lower portion of the sheet body, and the grounding piece is resisted by the two connecting portions. The shrapnels are in anti-contact with each other to form an electrical connection. The grounding structure of the electrical connector according to the first aspect of the invention, wherein the insulating seat body is provided with a plurality of convex buckles at a wall surface in front of and behind the two receiving slots of the mounting portion, and is disposed on the conductive terminals of the terminal group. At least one of the opposite ends of the terminal block is recessed with at least one buckle groove for the buckle to be held therein. The grounding structure of the electrical connector of claim 1, wherein the bottom surface of the base of the insulating base is located between the two adjacent mounting portions and at two sides thereof, respectively, and is fixedly fixed and fixed The body of the positioning terminal is disposed in the slot, and the welding legs outside the base are respectively disposed under the respective bodies. The structural improvement of the electrical connector according to claim 8 of the patent application, wherein the positioning terminal Above the body is a shielding plate extending between adjacent slots of the docking portion. The grounding structure of the electrical connector of claim 1, wherein the conductive terminal of the terminal group forms a coplanar welding on the outer side of the base at the outer side of the base which is respectively provided and exposed to the insulating base. unit.