Electrical connector

Abstract

An electrical connector includes a first insulating housing, a first terminal set disposed in the first insulating housing and including a plurality of signal terminals and a plurality of ground terminals, a second insulating housing engaged with the first insulating housing, a second terminal set disposed in the second insulating housing and including a plurality of signal terminals and a plurality of ground terminals, the ground terminals in the two terminal sets being arranged in left-right symmetry, and a conductive connecting member covered by the first and second insulating housings and having a main body portion and a plurality of connecting blocks extending from the main body portion, the main body portion being clamped between the first and second insulating housings, the connecting blocks being arranged in succession on the main body portion at regular intervals and extending outwardly to electrically connect with all the ground terminals, respectively.

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, which in turn drives the miniaturization of circuit boards and corresponding connectors. This is especially true for connectors used in internal wiring (e.g., circuit board to circuit board, chip to chip, and chip to backplane). The reduction in size of these connectors has resulted in the terminals of their internal terminal groups being too close together. This exacerbates crosstalk problems when transmitting high-frequency signals, causing the connectors to be unable to operate stably in high-frequency environments.

[0003] Therefore, it is necessary to provide an electrical connector that operates stably in a high-frequency environment. 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 two ground terminals provided on both sides of every two signal terminals; a second insulating base, the second insulating base being elongated and engaging with the first insulating base; and 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 connected to the first insulating base. The grounding terminals in the terminal group are arranged symmetrically from left to right, and a conductive connector is provided. The conductive connector is completely covered by the first insulating base and the second insulating base and is electrically connected between the first terminal group and the second terminal group. The conductive connector has a main body and a plurality of connecting blocks extending outward from the main body. The main body is elongated and is clamped between the first insulating base and the second insulating base. The connecting blocks are continuously arranged on the main body at fixed intervals and extend outward to be electrically connected to the grounding terminals in the first terminal group and the second terminal group.

[0005] In some embodiments, the signal terminal and the ground terminal each include a fixing portion and a mating portion extending upward from the fixing portion. The fixing portion is fixed and covered in the first insulating base and the second insulating base. The fixing portion of the signal terminal has a recessed portion, and the fixing portion of the ground terminal has a narrow portion, and the recessed portion and the narrow portion are opposite to each other.

[0006] In some embodiments, the left and right sides of the docking portion gradually narrow inward after extending upward and slightly bending, and further narrowing after the docking portion bends again.

[0007] In some embodiments, the connection point between the connecting block and the narrow portion of the grounding terminal is provided with three protrusions.

[0008] In some embodiments, the distance between any two adjacent connecting blocks is the same as the distance between any two adjacent grounding terminals.

[0009] In some embodiments, the inner surface of the first insulating base has a recessed first groove, the inner surface of the second insulating base has a recessed second groove, and the first groove and the second groove define a mating space, and the conductive connector is fixed and disposed in the mating space.

[0010] Another objective of this utility model is to provide an electrical connector, comprising: a housing; an insulating body disposed within the housing; a terminal fixing assembly disposed within the insulating body; a terminal group fixed to the terminal fixing assembly, the terminal group having a plurality of signal terminals and a plurality of ground terminals interleaved therein, each of the signal terminals and each of the ground terminals having a fixing portion fixed to the terminal fixing assembly, a mating portion extending upward from the upper end of the fixing portion, and a welding portion extending downward from the lower end of the fixing portion, the fixing portion of the signal terminal having a recessed portion on one side facing the ground terminal, the fixing portion of the ground terminal having a narrow portion recessed inward on both sides corresponding to the recessed portion; and a conductive connector disposed in the terminal fixing assembly, the conductive connector having a main body and a plurality of connecting blocks extending outward from the main body, each connecting block having at least one protrusion on each opposite side, the protrusions being electrically connected to the narrow portions of the ground terminals.

[0011] Another objective of this utility model is to provide an electrical connector, comprising: a housing; an insulating body disposed within the housing, the insulating body having a receiving portion formed within the insulating body; two inner sides disposed on opposite sides of the receiving portion; a base protruding from each of the inner sides; an arm extending downward from the base; a latching portion extending inward from the arm; a clearance space formed between the inner sides and the arm; a terminal fixing assembly disposed within the receiving portion, the terminal fixing assembly having two short sides disposed on opposite sides of the terminal fixing assembly; and a receiving groove forming... At each of the short sides; a terminal group, fixed to the terminal fixing assembly, the terminal group having a plurality of signal terminals and a plurality of ground terminals interleaved, each of the signal terminals and each of the ground terminals having a fixing part fixed to the terminal fixing assembly, a mating part extending upward from the upper end of the fixing part, and a welding part extending downward from the lower end of the fixing part; a conductive connector, disposed in the terminal fixing assembly, the conductive connector being electrically connected to the fixing part of the ground terminal; and wherein the arm portion is received in the receiving groove, and the buckle portion is fastened to the bottom surface of the terminal fixing assembly.

[0012] In some embodiments, a set of protrusions is provided at both ends of the bottom surface of the terminal fixing base assembly, and the buckle is located in the set of protrusions.

[0013] In some embodiments, each of the inner surfaces is provided with a recessed concave surface, the base extends from the concave surface, and the clearance space is formed between the arm and the concave surface.

[0014] As described above, the electrical connector of this utility model improves the crosstalk problem generated when transmitting high-frequency signals and enhances the working capability of the electrical connector in high-frequency environments by reducing the cross-sectional area of ​​the fixing part and the mating part of all terminals, and by adding the conductive connector inside the two insulating seats, wherein the conductive connector is provided with the connecting block abutting against all the grounding terminals. 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] Figure 1 This is a perspective view of the electrical connector of this utility model.

[0017] Figure 2 This is an exploded view of the electrical connector of this utility model.

[0018] Figure 3 This utility model electrical connector is along Figure 2A magnified view of part X.

[0019] Figure 4 This is an exploded view of the terminal assembly of this utility model.

[0020] Figure 5 This is an exploded view of the terminal fixing bracket assembly of this utility model.

[0021] Figure 6 This is a partial top view of the terminal assembly of this utility model.

[0022] Figure 7 This is a partial top view of the terminal assembly of this utility model.

[0023] Figure 8 This is a top view of the terminal assembly of this utility model.

[0024] Figure 9 This utility model terminal assembly is along Figure 8 A cross-sectional view of line AA.

[0025] Figure 10 This utility model terminal assembly is along Figure 8 A cross-sectional view of the BB line.

[0026] Figure 11 The terminal assembly of this utility model is along Figure 10 A magnified view of the Y-section. Detailed Implementation

[0027] 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.

[0028] Please see Figure 1 and Figure 2 The present invention provides an electrical connector 200 comprising a housing 50, an accommodating space 55 disposed inside the housing 50, an insulating body 40 disposed in the accommodating space 55, and a terminal assembly 100 disposed inside the insulating body 40.

[0029] Please see again Figures 2 to 4 The terminal assembly 100 includes a terminal holder assembly 10 and a terminal group 20 fixed in the terminal holder assembly 10. The terminal holder assembly 10 includes a first insulating seat 11, a second insulating seat 12 assembled with the first insulating seat 11, and a conductive connector 30 sandwiched and covered by the first insulating seat 11 and the second insulating seat 12. The terminal group 20 includes a first terminal group 21 passing through the first insulating seat 11 and a second terminal group 22 passing through the second insulating seat 12.

[0030] Please see again Figures 2 to 4 The terminal fixing assembly 10 is rectangular, and the first insulating seat 11 and the second insulating seat 12 are both generally elongated. The inner surface of the first insulating seat 11 is provided with an inwardly recessed first groove 111, and the inner surface of the second insulating seat 12 is provided with an inwardly recessed second groove 121. The inner surface of the first insulating seat 11 engages with the inner surface of the second insulating seat 12, such that the first groove 111 and the second groove 121 define an engagement space 15, and the conductive connector 30 is fixed and disposed in the engagement space 15.

[0031] Please see again Figures 1 to 4 The housing 50 has two opposing short sidewalls 53, each of which has a first latch 51 and a second latch 52, with the first latch 51 located below the second latch 52. The insulating body 40 has two opposing short sides 43, each of which has a first slot 41 and a second slot 42, with the first slot 41 located below the second slot 42. The housing 50 is fitted over the insulating body 40, with the first latch 51 engaging with the first slot 41 and the second latch 52 engaging with the second slot 42.

[0032] The insulating body 40 has a receiving portion 44 inside, and the receiving portion 44 has two opposing inner surfaces 45. Each inner surface 45 has a recessed concave surface 46, and the upper part of the concave surface 46 has a protruding base 47, which extends out of the concave surface 46 and beyond the inner surface 45. The lower surface of the base 47 extends downward to form a latching arm 48, and a clearance space 49 is formed between the latching arm 48 and the concave surface 46. The clearance space 49 is used to provide room for movement of the latching arm 48 during elastic deformation. The latching arm 48 has an arm portion 481 and a latching portion 482. The arm portion 481 extends downward from the lower surface of the base 47, and the latching portion 482 extends inward from the lower end of the arm portion 481.

[0033] The terminal fixing assembly 10 has two opposing short sides 13, each of which has a receiving groove 14. A set of protrusions 112 and 122 are respectively provided at both ends of the bottom surface of the terminal fixing assembly 10. The protrusions 112 and 122 include a first protrusion 112 disposed on the bottom surface of the first insulating base 11 and a second protrusion 122 disposed on the bottom surface of the second insulating base 12. When the terminal assembly 100 is assembled into the receiving portion 44, the arm portion 481 of the latching arm 48 is received in the receiving groove 14, and the latch portion 482 of the latching arm 48 is fastened to the bottom surface of the terminal fixing assembly 10, and the latch portion 482 of the latching arm 48 is limited between the first protrusion 112 and the second protrusion 122. The inner surface of the first insulating seat 11 and the inner surface of the second insulating seat 12 are provided with a matching structure 123. In this embodiment, the matching structure 123 includes a protrusion provided on the inner surface of the first insulating seat 11 and a concave portion provided on the inner surface of the second insulating seat 12, and the shape of the protrusion matches the shape of the concave portion.

[0034] Please see Figure 4 , Figure 6 and Figure 7 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.

[0035] Please see again Figure 6 and Figure 7Both the signal terminal 201 and the grounding terminal 202 are elongated strips, and each includes a fixing portion 201a, 202a fixed and covered in the terminal fixing base assembly 10; a mating portion 201b, 202b extending upward from the fixing portions 201a, 202a; and a welding portion 201c, 202c extending downward from the fixing portions 201a, 202a. The left and right sides of the mating portions 201b, 202b extend upward and are slightly bent inward. The joints gradually narrow, and after the mating portions 201b and 202b are bent again, the left and right sides of the mating portions 201b and 202b become even narrower, so that the width of the ends of the mating portions 201b and 202b is approximately one-third of the width of the mating portions 201b and 202b extending out of the terminal fixing assembly 10, in order to reduce the cross-sectional area of ​​both the signal terminal 201 and the ground terminal 202, thereby reducing the impedance of the terminals and improving the high-frequency performance of the electrical connector 200. 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.

[0036] Please see Figure 4 , Figures 8 to 10The conductive connector 30 is completely covered by the terminal fixing assembly 10 and electrically connected between the first terminal group 21 and the second terminal group 22. In this preferred embodiment, the conductive connector 30 is made of conductive plastic and has a main body 31 and a plurality of connecting blocks 32 extending outward from the main body 31. The main body 31 is elongated and is clamped between the first insulating seat 11 and the second insulating seat 12. The connecting blocks 32 are continuously disposed on the main body 31 at fixed intervals and extend outward to be electrically connected to the grounding terminal 202. In this preferred embodiment, the grounding terminals 202 disposed in the first terminal group 21 and the second terminal group 22 are arranged symmetrically from left to right, and the connecting blocks 32 extend to the left and right sides to be electrically connected to the grounding terminals 202 in the first terminal group 21 and the second terminal group 22. The distance between the center lines of two adjacent connecting blocks 32 is the same as the distance between the center lines of two adjacent grounding terminals 202, so that all the grounding terminals 202 are interconnected through the conductive connectors 30 and have the same potential.

[0037] Please see again Figure 11 To prevent gaps from forming between the connecting block 32 and the grounding terminal 202 when the grounding terminal 202 is bent, three protrusions 321 are provided at the connection point between the connecting block 32 and the grounding terminal 202. The degree of protrusion of the protrusions 321 can be easily adjusted during production to ensure reliable contact and connection between the connecting block 32 and the grounding terminal 202. The main body 31 of the conductive connector 30 is separated from the differential terminal pair and maintains a distance from each other. In this embodiment, the protrusions 321 abut against the narrow portion 202d of the fixing portion 202a of the grounding terminal 202.

[0038] In summary, this invention electrically connects all the grounding terminals 202 in the first terminal group 21 and the second terminal group 22 through the conductive connector 30 to eliminate the potential difference between the grounding terminals 202 and push the resonant point of crosstalk to a higher frequency. Simultaneously, the mating portions 201b and 202b of all terminals 201 and 202 are narrowed, and an inward portion 201d is provided on the signal terminal 201, and a narrow portion 202d is provided on the grounding terminal 202 to reduce the cross-sectional area of ​​the terminals and lower their impedance. 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 two ground terminals provided on both sides of every two signal terminals; a second insulating base, the second insulating base being elongated and joined to the first insulating base; and 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 connected to the ground terminals in the first terminal group. The components are arranged symmetrically on both sides, and a conductive connector is completely covered by the first insulating base and the second insulating base, and electrically connected between the first terminal group and the second terminal group. The conductive connector has a main body and a plurality of connecting blocks extending outward from the main body. The main body is elongated and is clamped between the first insulating base and the second insulating base. The connecting blocks are continuously arranged on the main body at fixed intervals and extend outward to electrically connect with the grounding terminal in the first terminal group and the second terminal group.

2. The electrical connector as described in claim 1, characterized in that: The signal terminal and the grounding terminal each include a fixing portion and a mating portion extending upward from the fixing portion. The fixing portion is fixed and covered in the first insulating base and the second insulating base. The fixing portion of the signal terminal has an inward portion, and the fixing portion of the grounding terminal has a narrow portion, and the inward portion and the narrow portion are opposite to each other.

3. The electrical connector as described in claim 2, characterized in that: The left and right sides of the docking portion extend upward and bend slightly before gradually narrowing inward, and the left and right sides of the docking portion become even narrower after the docking portion bends again.

4. The electrical connector as described in claim 2, characterized in that: The connection point between the connecting block and the narrow portion of the grounding terminal is provided with three protrusions.

5. The electrical connector as described in claim 1, characterized in that: The distance between any two adjacent connecting blocks is the same as the distance between any two adjacent grounding terminals.

6. The electrical connector as claimed in claim 1, characterized in that: The inner surface of the first insulating base has a recessed first groove, and the inner surface of the second insulating base has a recessed second groove. The first groove and the second groove define a joint space, and the conductive connector is fixed and disposed in the joint space.

7. An electrical connector, characterized in that: The device comprises: a housing; an insulating body disposed within the housing; a terminal fixing assembly disposed within the insulating body; a terminal group fixed to the terminal fixing assembly, the terminal group having a plurality of signal terminals and a plurality of ground terminals interleaved therein, each of the signal terminals and each of the ground terminals having a fixing portion fixed to the terminal fixing assembly, a mating portion extending upward from the upper end of the fixing portion, and a welding portion extending downward from the lower end of the fixing portion, the fixing portion of the signal terminal having a recessed portion on one side facing the ground terminal, the fixing portion of the ground terminal having a narrow portion recessed inward on both sides corresponding to the recessed portion; and a conductive connector disposed in the terminal fixing assembly, the conductive connector having a main body and a plurality of connecting blocks extending outward from the main body, each connecting block having at least one protrusion on each opposite side, the protrusions being electrically connected to the narrow portions of the ground terminals.

8. An electrical connector, characterized in that: It comprises: a housing; an insulating body disposed within the housing, the insulating body having a receiving portion formed within the insulating body; two inner sides disposed on opposite sides of the receiving portion; a base protruding from each of the inner sides; an arm extending downward from the base; a latch extending inward from the arm; a clearance space formed between the inner sides and the arm; a terminal fixing assembly disposed within the receiving portion, the terminal fixing assembly having two short sides disposed on opposite sides of the terminal fixing assembly; a receiving groove formed on each of the short sides; and a terminal. A terminal assembly is fixed to the terminal mounting base assembly. The terminal assembly has a plurality of signal terminals and a plurality of ground terminals interleaved together. Each signal terminal and each ground terminal has a fixing part fixed to the terminal mounting base assembly, a mating part extending upward from the upper end of the fixing part, and a welding part extending downward from the lower end of the fixing part. A conductive connector is disposed in the terminal mounting base assembly and is electrically connected to the fixing part of the ground terminal. The arm is received in the receiving groove, and the buckle is fastened to the bottom surface of the terminal mounting base assembly.

9. The electrical connector as claimed in claim 8, characterized in that: The terminal fixing base assembly has a protrusion group at each end of its bottom surface, and the buckle is located in the protrusion group.

10. The electrical connector as claimed in claim 8, characterized in that: Each of the inner surfaces is provided with a recessed concave surface, the base extends from the concave surface, and the clearance space is formed between the arm and the concave surface.

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