Electrical connector

Abstract

An electrical connector includes a first insulating housing, a first terminal set disposed in the first insulating housing, a second insulating housing engaged with the first insulating housing, a second terminal set disposed in the second insulating housing, the two terminal sets including a plurality of signal terminals and ground terminals, the ground terminals being left-right symmetrical, and a shielding member held by the two insulating housings and provided with a shielding plate being a metal plate with a height greater than the two insulating housings and protruding from top and bottom walls of the two insulating housings, and a plurality of grounding members being compression springs made of conductive material and electrically connected to both side surfaces of the shielding plate at fixed intervals so that ends of the grounding members are in contact with all the ground terminals, the grounding members on both sides of the shielding plate being arranged in at least one row.

Description

Technical Field

[0001] This utility model relates to an electrical connector, and more particularly to an electrical connector that can operate stably in a high-frequency environment. Background Technology

[0002] In recent years, the booming development of the electronics industry and consumers' preference for lighter, thinner, smaller, and more portable electronic products have driven small electronic products to become the mainstream in the market. For these reasons, electronic devices are becoming increasingly smaller, leading to the miniaturization of circuit boards and corresponding connectors. However, with the miniaturization of circuits, the distance between terminals inside electronic components such as connectors is shortened, resulting in more frequent coupling between the electric fields of the terminals. This contributes to the generation of more noise signals and exacerbates crosstalk problems when transmitting high-frequency signals, causing connectors to be unable to operate stably in high-frequency environments.

[0003] Therefore, it is necessary to provide an electrical connector with better resistance to high-frequency noise and crosstalk. Summary of the Invention

[0004] The purpose of this utility model is to provide an electrical connector, comprising: a first insulating base, the first insulating base being elongated; a first terminal group, the first terminal group being disposed within the first insulating base and including a plurality of signal terminals and a plurality of ground terminals, with a ground terminal provided on each side of every two signal terminals; a second insulating base, the second insulating base being elongated and engaging with the first insulating base; a second terminal group, the second terminal group being disposed within the second insulating base and including a plurality of signal terminals and a plurality of ground terminals, wherein the ground terminals in the second terminal group are symmetrically arranged with respect to the ground terminals in the first terminal group; and a... A shielding component, held between a first insulating base and a second insulating base, and comprising: a shielding plate, the shielding plate being a metal plate with a height greater than the first insulating base and the second insulating base, such that the top and bottom ends of the shielding plate protrude from the top and bottom walls of the first insulating base and the second insulating base, respectively; and a plurality of grounding components, the grounding components being compression springs made of conductive material, and the grounding components being electrically connected to both sides of the shielding plate at fixed intervals, such that the ends of the grounding components are electrically connected to the grounding terminals in the first terminal group and the second terminal group, respectively, and the plurality of grounding components on both sides of the shielding plate are arranged in at least one row.

[0005] In some embodiments, the signal terminal and the ground terminal each include a fixing portion, a mating portion extending upward from the fixing portion, and a welding portion extending downward from the fixing portion. The welding portion extends downward and then bends outward and extends further. The distance by which the shielding plate extends downward does not exceed the bend of the welding portion.

[0006] In some embodiments, the shielding plate extends approximately equal distances to the upper and lower sides.

[0007] In some embodiments, the fixing portion of the signal terminal has a recessed portion on one side adjacent to the fixing portion of the ground terminal, and the fixing portion of the ground terminal has a narrow portion formed by inward indentation on both sides corresponding to the position of the recessed portion of the signal terminal. The recessed portion and the narrow portion are opposite to each other, and the grounding member abuts against the narrow portion of the fixing portion of the ground terminal.

[0008] In some embodiments, the plurality of grounding elements on both sides of the shielding plate are arranged in two rows, one above the other, with the spacing between the grounding elements in the upper row being the same as the spacing between the grounding elements in the lower row, such that the ends of the grounding elements in the upper row abut against the grounding terminal.

[0009] In some embodiments, the adjacent surfaces of the first insulating base and the second insulating base are respectively provided with a groove, the groove penetrating the top and bottom walls of the first insulating base and the second insulating base respectively, and a plurality of through holes arranged at fixed intervals are respectively provided on the bottom surface of the groove, the through holes extending to the left and right respectively, the shielding plate protruding from the groove from the top and bottom walls of the first insulating base and the second insulating base, and the grounding element is respectively housed in the through holes.

[0010] In some embodiments, each groove is provided with at least one positioning post protruding from the bottom surface of the groove, and the shielding plate is provided with at least one through positioning hole. The positioning hole is aligned with the positioning post of the first insulating seat and the positioning post of the second insulating seat. The two positioning posts extend into the positioning hole from the left and right ends of the positioning hole and abut against each other in the positioning hole.

[0011] Another objective of this utility model is to provide an electrical connector, comprising: a housing; an insulating body disposed within the housing; a first insulating base disposed within the insulating body; a second insulating base disposed within the insulating body and connected to the first insulating base; a plurality of signal terminals passing through the first insulating base and the second insulating base, the signal terminals being spaced apart, and two adjacent signal terminals forming a differential terminal pair; a plurality of grounding terminals passing through the first insulating base and the second insulating base, the differential terminal pair being disposed between two grounding terminals; and a shielding plate formed by the first insulating base and the first insulating base. The shielding plate is a metal plate with a height greater than that of the first and second insulating bases, with its top and bottom ends protruding from the top and bottom walls of the first and second insulating bases, respectively. It also includes a plurality of grounding elements, each a compression spring made of conductive material, electrically connected at fixed intervals to both sides of the shielding plate, with the ends of each element electrically connected to grounding terminals. The plurality of grounding elements on both sides of the shielding plate are arranged in two rows, with the spacing between the elements in the upper row being the same as the spacing between the elements in the lower row.

[0012] In some embodiments, the signal terminal and the grounding terminal each include a fixing portion fixed and covered in the first insulating base and the second insulating base, respectively. The fixing portion of the signal terminal and the fixing portion of the grounding terminal are provided with a single-sided recessed portion on the side adjacent to each other, and the fixing portion of the grounding terminal is provided with a narrow portion formed by inward indentation on both sides corresponding to the position of the recessed portion of the signal terminal. The recessed portion and the narrow portion are opposite to each other, the lower row of grounding members abuts against the narrow portion, and the upper row of grounding members abuts against the fixing portion of the grounding terminal.

[0013] In some embodiments, the adjacent surfaces of the first insulating base and the second insulating base are respectively provided with a plurality of through holes arranged at fixed intervals. The through holes extend to the left and right. The shielding plate protrudes from the top and bottom surfaces of both the first insulating base and the second insulating base. The grounding components in the lower row are respectively housed in the through holes. The top surfaces of the first insulating base and the second insulating base are respectively provided with a plurality of conductive tubes. The tube walls of the conductive tubes rise upward from the top surface and extend to the left and right. The conductive tubes penetrate the first insulating base and the second insulating base and are arranged continuously at fixed intervals. The interval between the conductive tubes is the same as the interval between the through holes. The grounding components in the upper row are respectively housed in the conductive tubes.

[0014] As described above, the electrical connector of this utility model is provided with a shielding component, which includes a shielding plate. The shielding plate is higher than the first insulating base and the second insulating base to separate the electric fields of the differential terminal pairs in the first terminal group and the second terminal group, thereby reducing the coupling between the electric fields. The shielding component is also provided with a grounding component that electrically connects all the grounding terminals. The grounding components are arranged in at least one row to eliminate the potential difference between the grounding terminals, thereby improving the crosstalk problem generated when transmitting high-frequency signals and enhancing the working capability of the electrical connector in a high-frequency environment. Attached Figure Description

[0015] To make the above and other objects, features, advantages and embodiments of this utility model more apparent and understandable, the contents of this case can be better understood when read in conjunction with the accompanying drawings.

[0016] To make the above and other objects, features, advantages and embodiments of this utility model more apparent and understandable, the contents of this case can be better understood when read in conjunction with the accompanying drawings.

[0017] Figure 1 This is a perspective view of the electrical connector of this utility model.

[0018] Figure 2 This is an exploded view of the electrical connector of this utility model.

[0019] Figure 3 This is an exploded view of the terminal assembly of the first embodiment of this utility model.

[0020] Figure 4 This is an exploded view of the terminal fixing base assembly according to the first embodiment of this utility model.

[0021] Figure 5 This is a partial perspective view of the terminal assembly of this utility model.

[0022] Figure 6 This is a left view of the terminal assembly of the first embodiment of this utility model.

[0023] Figure 7 The terminal assembly of the first embodiment of this utility model is along Figure 6 A cross-sectional view of line AA.

[0024] Figure 8 The terminal assembly of the first embodiment of this utility model is along Figure 6 A cross-sectional view of the BB line.

[0025] Figure 9 The terminal assembly of the first embodiment of this utility model is along Figure 6 A cross-sectional view of the CC line.

[0026] Figure 10This is an exploded view of the terminal assembly of the second embodiment of this utility model.

[0027] Figure 11 This is an exploded view of the terminal fixing seat assembly according to the second embodiment of this utility model.

[0028] Figure 12 This is a left view of the terminal assembly of the second embodiment of the present invention.

[0029] Figure 13 The terminal assembly of the second embodiment of this utility model is along Figure 12 A cross-sectional view of the DD line. Detailed Implementation

[0030] To illustrate in detail the technical content, structural features, objectives, and effects of the electrical connector of this utility model, the following embodiments are provided in conjunction with the accompanying drawings.

[0031] Please see Figure 1 and Figure 2 The present invention provides an electrical connector 200 comprising a housing 50, an accommodating space 55 disposed within the housing 50, an insulating body 40 disposed within the accommodating space 55, and a terminal assembly 100 disposed within the insulating body 40. See also... Figure 3 The terminal assembly 100 of the first embodiment of this utility model includes a terminal fixing base assembly 10 and a terminal group 20 fixed in the terminal fixing base assembly 10. The terminal fixing base assembly 10 of the first embodiment of this utility model includes a first insulating base 11, a second insulating base 12 engaged with the first insulating base 11, and a shielding member 30 clamped by the first insulating base 11 and the second insulating base 12. The terminal group 20 includes a first terminal group 21 passing through the first insulating base 11 and a second terminal group 22 passing through the second insulating base 12.

[0032] Please see again Figure 3 , Figure 4 and Figure 9The terminal fixing assembly 10 is rectangular, and the first insulating seat 11 and the second insulating seat 12 are generally elongated and symmetrically arranged. The adjacent surfaces of the first insulating seat 11 and the second insulating seat 12 are respectively provided with grooves 111 and 121, which penetrate the top and bottom walls of the first insulating seat 11 and the second insulating seat 12 respectively. On the bottom surface of the grooves 111 and 121, there are a plurality of through holes 1111 and 1211 arranged at fixed intervals, and at least one positioning post 1112 or 1212 protruding from the bottom surface of the groove. The through holes 1111 and 1211 extend to the left and right respectively, and the positioning post 1112 of the first insulating seat 11 and the positioning post 1212 of the second insulating seat 12 abut against each other. The shielding member 30 is clamped and fixed in the grooves 111 and 121, and the shielding member 30 protrudes from the grooves 111 and 121 and protrudes from the top and bottom walls of both the first insulating seat 11 and the second insulating seat 12.

[0033] Please see Figure 3 and Figure 5 Both the first terminal group 21 and the second terminal group 22 include a plurality of signal terminals 201 and a plurality of ground terminals 202. The signal terminals 201 and the ground terminals 202 are spaced apart from each other, and two signal terminals 201 form a differential terminal pair. The two ground terminals 202 are located on both sides of a differential terminal pair.

[0034] Continue reading Figure 3 and Figure 5 Both the signal terminal 201 and the ground terminal 202 are elongated strips and each includes a fixing part 201a and 202a fixed and covered in the terminal fixing base assembly 10, a mating part 201b and 202b extending upward from the fixing part 201a and 202a, and a welding part 201c and 202c extending downward from the fixing part 201a and 202a, respectively. The welding parts 201c and 202c extend downward and then bend outward and extend to be welded to a circuit board. Furthermore, the fixing portion 201a of the signal terminal 201 and the fixing portion 202a of the ground terminal 202 are provided with a single-sided recessed portion 201d on the side adjacent to each other. The fixing portion 202a of the ground terminal 202 is provided with a narrow portion 202d formed by inward indentation on both sides corresponding to the position of the recessed portion 201d of the signal terminal 201. The recessed portion 201d and the narrow portion 202d are opposite to each other to reduce the cross-sectional area of ​​the two fixing portions 201a and 202a, thereby improving the impedance matching of the electrical connector 200 and enhancing the working stability of the electrical connector 200 in a high-frequency environment.

[0035] Please see Figure 3 The shielding member 30 is clamped and fixed in the terminal fixing base assembly 10 and electrically connected between the grounding terminal 202 in the first terminal group 21 and the second terminal group 22.

[0036] Please see again Figure 4 and Figures 6 to 9 The shielding member 30 of the first embodiment of this utility model includes a shielding plate 31 and a plurality of grounding members 32 welded and fixed at fixed intervals to both sides of the shielding plate 31. The shielding plate 31 is a rectangular metal plate and is sandwiched between the grooves 111 and 121. The height of the shielding plate 31 is greater than that of the first insulating seat 11 and the second insulating seat 12, so that the top and bottom ends of the shielding plate 31 protrude from the top and bottom walls of the first insulating seat 11 and the second insulating seat 12, respectively. The shielding plate 31 has at least one through positioning hole 311, which is aligned with the positioning post 1112 and the positioning post 1212. Therefore, the positioning post 1112 and the positioning post 1212 extend into the positioning hole 311 from the left and right ends of the positioning hole 311 and abut against each other in the positioning hole 311, making it easy to position and fix the shielding plate 31. The grounding element 32 is a compression spring made of conductive material. The grounding element 32 is covered by the first insulating seat 11 and the second insulating seat 12, and is respectively housed in the through holes 1111 and 1211. The end of the grounding element 32 abuts against the grounding terminal 202.

[0037] Please see Figures 7 to 9 In this preferred embodiment, all terminals in the first terminal group 21 and the second terminal group 22 are arranged symmetrically from left to right. The distance the shielding plate 31 extends forward and backward is approximately the same as the length of the terminals 201 and 202. The distance the shielding plate 31 extends upward and downward is approximately equal, and the downward extension of the shielding plate 31 does not exceed the bends of the welding portions 201c and 202c, thereby separating the space between the first terminal group 21 and the second terminal group 22, and thus isolating the electric field of the first terminal group 21 from the electric field of the second terminal group 22. This reduces the coupling between the two electric fields, suppresses the generation of noise signals, and improves the crosstalk problem. The grounding member 32 is electrically connected to the grounding terminals 202 in the first terminal group 21 and the second terminal group 22 in the through holes 1111 and 1211, respectively, and abuts against the narrow portion 202d of the fixing portion 202a, so that all the grounding terminals 202 are interconnected through the shielding member 30 and have the same potential.

[0038] Please see Figures 10 to 13In the second embodiment of this utility model, the shielding plate 31 has two rows of grounding members 32 on opposite sides. In contrast, the shielding member 30 in the first embodiment of this utility model has only one row of grounding members 32 on opposite sides of the shielding plate 31. In this preferred embodiment, the grounding member 32 is a spring. In the second embodiment of this utility model, the top surfaces of the first insulating seat 11' and the second insulating seat 12' are each provided with a plurality of extension blocks 13. Each extension block 13 corresponds to one grounding member 32 in the upper row. The extension block 13 of the first insulating seat 11' corresponds to the extension block 13 of the second insulating seat 12'. The extension blocks 13 of the first insulating seat 11' and the extension blocks 13 of the second insulating seat 12' each form a conductive tube 131. The extension blocks 13 extend upwards from the top surfaces of the first insulating seat 11' and the second insulating seat 12', respectively. The tubes 131 protrude and extend to the left and right. They penetrate the inner side of the extension block 13 of the first insulating seat 11' and the second insulating seat 12' and are continuously arranged at fixed intervals. The interval between the tubes 131 is the same as the interval between the through holes 1111 and 1211. The grounding members 32 in the upper row are respectively housed in the tubes 131 and electrically connected to the fixing part 202a of the grounding terminal 202 in the first terminal group 21 and the second terminal group 22 to enhance the mutual conductivity of all the grounding terminals 202. In summary, the electrical connector 200 of this invention electrically connects all the grounding terminals 202 in the first terminal group 21 and the second terminal group 22 through the grounding member 32 of the shield 30, thereby eliminating the potential difference between the grounding terminals 202, pushing the resonant point of crosstalk to a higher frequency. Furthermore, the shield 31 protrudes from the top and bottom walls of the first insulating base 11 and the second insulating base 12, separating the electric field of the first terminal group 21 from the electric field of the second terminal group 22, weakening the coupling phenomenon between the electric fields, and thus reducing noise signals. Therefore, the electrical connector 200 of this invention can effectively suppress the resonant point of crosstalk, improve the crosstalk problem of high-frequency signals, and enhance the transmission capability of high-frequency signals.

[0039] Although the present invention has been disclosed above with reference to embodiments, it is not intended to limit the present invention. Anyone with ordinary knowledge in the art may make some modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. An electrical connector, characterized in that: It comprises: a first insulating base, the first insulating base being elongated; a first terminal group, the first terminal group being disposed within the first insulating base and comprising a plurality of signal terminals and a plurality of ground terminals, with a ground terminal provided on each side of every two signal terminals; a second insulating base, the second insulating base being elongated and joined to the first insulating base; a second terminal group, the second terminal group being disposed within the second insulating base and comprising a plurality of signal terminals and a plurality of ground terminals, wherein the ground terminals in the second terminal group are symmetrically arranged with respect to the ground terminals in the first terminal group; and a shielding member, the shielding member being made of... The first insulating base and the second insulating base are clamped together, and are provided with: a shielding plate, the shielding plate being a metal plate with a height greater than the first insulating base and the second insulating base, such that the top and bottom ends of the shielding plate protrude from the top and bottom walls of the first insulating base and the second insulating base, respectively; and a plurality of grounding elements, the grounding elements being compression springs made of conductive material, and the grounding elements being electrically connected to the two sides of the shielding plate at fixed intervals, so that the ends of the grounding elements are electrically connected to the grounding terminals in the first terminal group and the second terminal group, respectively, and the plurality of grounding elements on both sides of the shielding plate are arranged in at least one row.

2. The electrical connector as described in claim 1, characterized in that: The signal terminal and the ground terminal each include a fixing part, a mating part extending upward from the fixing part, and a welding part extending downward from the fixing part. The welding part extends downward and then bends outward and extends further. The distance that the shielding plate extends downward does not exceed the bend of the welding part.

3. The electrical connector as described in claim 2, characterized in that: The shielding plate extends approximately the same distance to both the upper and lower sides.

4. The electrical connector as described in claim 2, characterized in that: The fixing portion of the signal terminal has a recessed portion on one side adjacent to the fixing portion of the grounding terminal, and the fixing portion of the grounding terminal has a narrow portion formed by inward indentation on both sides corresponding to the position of the recessed portion of the signal terminal. The recessed portion and the narrow portion are opposite to each other, and the grounding member abuts against the narrow portion of the fixing portion of the grounding terminal.

5. The electrical connector as described in claim 1, characterized in that: The grounding elements on both sides of the shielding plate are arranged in two rows, one above the other. The spacing between the grounding elements in the upper row is the same as the spacing between the grounding elements in the lower row, so that the end of the grounding element in the upper row abuts against the grounding terminal.

6. The electrical connector as claimed in claim 1, characterized in that: The first insulating base and the second insulating base are respectively provided with a groove on their adjacent surfaces. The grooves penetrate the top and bottom walls of the first insulating base and the second insulating base respectively. A plurality of through holes are provided at fixed intervals on the bottom surface of the groove. The through holes extend to the left and right respectively. The shielding plate protrudes from the grooves from the top and bottom walls of the first insulating base and the second insulating base. The grounding components are respectively housed in the through holes.

7. The electrical connector as claimed in claim 6, characterized in that: The groove is provided with at least one positioning post protruding from the bottom surface of the groove, and the shielding plate is provided with at least one through positioning hole. The positioning hole is aligned with the positioning post of the first insulating seat and the positioning post of the second insulating seat. The two positioning posts extend into the positioning hole from the left and right ends of the positioning hole and abut against each other in the positioning hole.

8. An electrical connector, characterized in that: It comprises: a housing; an insulating body installed within the housing; a first insulating base installed within the insulating body; a second insulating base installed within the insulating body and connected to the first insulating base; a plurality of signal terminals passing through the first insulating base and the second insulating base, the signal terminals being spaced apart, and two adjacent signal terminals forming a differential terminal pair; a plurality of grounding terminals passing through the first insulating base and the second insulating base, the differential terminal pair being disposed between two grounding terminals; and a shielding plate held between the first insulating base and the second insulating base. The shielding plate is a metal plate with a height greater than that of the first insulating base and the second insulating base, such that the top and bottom ends of the shielding plate protrude from the top and bottom walls of the first insulating base and the second insulating base, respectively; and a plurality of grounding elements, each grounding element being a compression spring made of conductive material, and the grounding elements being electrically connected to both sides of the shielding plate at fixed intervals, so that the ends of the grounding elements are electrically connected to the grounding terminals respectively; wherein, the plurality of grounding elements on both sides of the shielding plate are arranged in two rows, one above the other, and the interval between the grounding elements in the upper row is the same as the interval between the grounding elements in the lower row.

9. The electrical connector as claimed in claim 8, characterized in that: The signal terminal and the grounding terminal each include a fixing portion fixed and covered in the first insulating base and the second insulating base, respectively. The fixing portion of the signal terminal and the fixing portion of the grounding terminal are provided with a single-sided concave inward portion on the side adjacent to each other. The fixing portion of the grounding terminal is provided with a narrow portion formed by inward indentation on both sides corresponding to the position of the inward indentation of the signal terminal. The inward indentation and the narrow portion are opposite to each other. The lower row of grounding members abuts against the narrow portion, and the upper row of grounding members abuts against the fixing portion of the grounding terminal.

10. The electrical connector as claimed in claim 8, characterized in that: The first insulating base and the second insulating base have a plurality of through holes arranged at fixed intervals on their adjacent surfaces. The through holes extend to the left and right. The shielding plate protrudes from the top and bottom surfaces of the first insulating base and the second insulating base. The grounding components are respectively housed in the through holes. The top surfaces of the first insulating base and the second insulating base have a plurality of conductive tubes. The walls of the lower row of conductive tubes rise upward from the top surface and extend to the left and right. The conductive tubes pass through the first insulating base and the second insulating base and are arranged continuously at fixed intervals. The interval between the conductive tubes is the same as the interval between the through holes. The upper row of grounding components are respectively housed in the conductive tubes.

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