CN213959258U - Low-crosstalk high-speed socket electric connector - Google Patents

Abstract

The utility model provides a low high-speed socket electric connector of crosstalking, be used for the electricity to be connected to the circuit board, including insulator and with a plurality of conductive terminal that insulator is fixed, a plurality of conductive terminal arrange and be at least one row, at least one row conductive terminal includes a plurality of signal terminal and a plurality of ground terminal of arranging according to specific rule, the preceding terminal surface of insulator inwards caves in and forms the grafting space that is used for pegging graft butting connector and forms the interface, insulator runs through along at least one row conductive terminal's array direction and is formed with the through-hole, at least one row ground terminal among the conductive terminal exposes to the through-hole in, still includes metal tandem connection spare, metal tandem connection spare combines in the through-hole to with at least one row ground terminal elasticity overlap joint among the conductive terminal. Have better ground connection effect and equipment convenience.

Description

Low-crosstalk high-speed socket electric connector

[ technical field ] A method for producing a semiconductor device

The embodiment of the application relates to the communication transmission field, the utility model relates to a low high-speed socket electric connector that disturbs.

[ background of the invention ]

Transceivers are commonly used to connect network equipment (e.g., switches, wiring boxes, computer input/output ports, etc.) to optical fibers or UTP cables. In order to increase port density, transceiver miniaturization is often desirable. A Small Form Plug (SFP) transceiver is a transceiver with a Small size and low power consumption, which is used for optical communication applications in telecommunication or data communication.

Referring to chinese utility model patent No. CN211428387U, a high speed receptacle electrical connector assembly with stable structure is disclosed. One row of terminals of such high speed receptacle electrical connector assemblies typically includes pairs of differential signal pairs and ground terminals for spacing each pair of differential signal pairs. In the high-speed receptacle electrical connector assembly disclosed in the prior art, since the conductive extension path of the terminal is long and the number of the ground terminals is large, a potential difference may be generated between the ground terminals, and high-frequency resonance of each pair of differential signal terminals is affected, thereby affecting high-speed signal transmission.

Accordingly, there is a need for an improved low crosstalk high speed receptacle electrical connector that solves the above problems.

[ Utility model ] content

An object of the present application is to provide a new electrical connector assembly with better grounding effect.

In order to achieve the above purpose, the present application is implemented by the following technical solutions:

the utility model provides a low high-speed socket electric connector of crosstalk, be used for the electricity to be connected to the circuit board, including insulator and with a plurality of conductive terminal that insulator is fixed, a plurality of conductive terminal arrange and be at least one row, at least one row conductive terminal includes a plurality of signal terminal and a plurality of ground terminal of arranging according to specific rule, the preceding terminal surface of insulator inwards caves in and forms the grafting space that is used for pegging graft butting connector and forms the interface, insulator runs through along at least one row conductive terminal's array direction and is formed with the through-hole, at least one row ground terminal among the conductive terminal exposes to the through-hole in, still includes metal tandem connection spare, metal tandem connection spare combines in the through-hole to with at least two ground terminal elastic overlap joint in at least one row conductive terminal.

Furthermore, the metal concatenation piece includes the metal overlap joint piece, the metal overlap joint piece includes body portion and further bends by body portion and extends a plurality of elastic overlapping plate that forms, elastic overlapping plate and the elastic overlap joint of corresponding ground terminal.

Further, the metal serial connection piece further comprises a metal plug pin piece, and the metal plug pin piece is attached to the body part to extrude the metal overlapping piece so that the elastic overlapping piece is in elastic overlapping with the corresponding grounding terminal.

Furthermore, the through holes comprise a first through hole and a second through hole which is parallel to and communicated with the first through hole, the metal plug pin piece is inserted and contained in the second through hole, the body part of the metal overlapping piece is contained in the first through hole, the width of the second through hole is larger than that of the first through hole, and the width of the metal plug pin piece is larger than that of the body part.

Furthermore, the through hole also comprises a contact hole, the contact hole is parallel to and communicated with the first through hole, the first through hole is positioned between the contact hole and the second through hole, the grounding terminal in at least one row of conductive terminals is exposed into the contact hole, and the elastic overlapping sheet protrudes into the contact hole and is elastically overlapped with the grounding terminal.

Furthermore, the grounding terminal in at least one row of the conductive terminals is provided with a convex part protruding into the contact hole, and the elastic lapping sheet is in elastic lapping with the convex part.

Further, the insulation body comprises an insulation base formed by stacking a plurality of insulation substrates along the arrangement direction of at least one row of the conductive terminals, the insulation substrates comprise a signal substrate and a grounding substrate, the signal substrate is internally combined with a signal terminal, the grounding substrate is internally combined with a grounding terminal, and the through hole penetrates through each insulation substrate to form the insulation base.

Furthermore, four signal terminals are combined in each signal substrate, one grounding terminal is combined in each grounding substrate, the signal terminals in the insulating base are arranged in four rows, and two signal substrates are stacked and clamped between two adjacent grounding substrates.

Furthermore, the insulation body comprises an insulation shell, the insulation shell is sleeved on the periphery of the insulation seat, the front end face of the insulation shell forms two plugging spaces and two plugging ports, the two plugging spaces are arranged at intervals along the vertical direction, two rows of signal terminals are correspondingly arranged in each plugging space, the low-crosstalk high-speed socket electric connector further comprises a metal shielding cage, and the metal shielding cage is arranged on the periphery of the insulation body.

Further, the metal serial connection piece is arranged between two rows of signal terminals corresponding to one plugging space and two rows of signal terminals corresponding to the other plugging space, and the metal serial connection piece is arranged beside one row of signal terminals with the longest conductive path among the four rows of signal terminals.

Furthermore, at least two metal serial connection pieces are arranged between two rows of signal terminals corresponding to one plugging space and two rows of signal terminals corresponding to the other plugging space, and at least three metal serial connection pieces are arranged beside one row of signal terminals with the longest conductive path among the four rows of signal terminals.

Furthermore, the signal terminals in at least one row of the conductive terminals comprise flat sections extending along the horizontal direction, vertical sections extending along the vertical direction and middle inclined sections connecting the flat sections and the vertical sections, and the metal serial connection pieces are located at the middle inclined sections of the signal terminals, are obliquely arranged and are parallel to the inclined direction of the middle inclined sections.

Compared with the prior art, the method has the following beneficial effects: has better grounding effect.

[ description of the drawings ]

Fig. 1 is a perspective view of a low crosstalk high speed receptacle electrical connector of the present application;

fig. 2 is a partial perspective view of the low crosstalk, high speed receptacle electrical connector of the present application with the metal shielding cage removed;

FIG. 3 is a schematic perspective view of FIG. 2 from another angle;

fig. 4 is a partial exploded perspective view of the low crosstalk high speed receptacle electrical connector of the present application with the metal shielding cage substantially removed and the metal serial connector detached from the dielectric body;

FIG. 5 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 6 is an enlarged view of the encircled structure of FIG. 5;

fig. 7 is a schematic view of fig. 6 with the metal string removed, so long as the structure of the via is shown.

[ detailed description ] embodiments

It should be noted that the embodiments and features of the embodiments in the application may be combined with each other without conflict. Furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the application can be understood by those of ordinary skill in the art as the case may be.

In the description of the application, it is to be understood that the terms "comprises" and "comprising," and any variations thereof, as used herein, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In addition, for the accuracy of description of the present application, the application of the present application referring to the direction is uniformly referred to as fig. 2, wherein the extending direction of the X axis is the arranging direction of the conductive terminals (also referred to as the left-right direction, wherein the positive direction of the X axis is the right direction); the Y-axis extending direction is a plugging direction (also referred to as a front-back direction, where the Y-axis forward direction is a back direction) of a mating connector (not shown); the Z-axis extending direction is the up-down direction (wherein the Z-axis forward direction is up). The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to fig. 1 to 7, a low crosstalk high speed receptacle electrical connector for electrical connection to a circuit board is disclosed. The low crosstalk high-speed socket electric connector comprises an insulating body 1 and a plurality of conductive terminals (not numbered) fixed with the insulating body 1. The conductive terminals are arranged in at least one row. At least one row of the conductive terminals includes a plurality of signal terminals 21 and a plurality of ground terminals 22 arranged according to a specific rule. The front end surface of the insulating body 1 is recessed inwards to form a plugging space 10 for plugging a butting connector and form a plugging port 101. The insulating body 1 is formed with a through hole 100 penetrating along an arrangement direction (left-right direction) of at least one row of the conductive terminals. The ground terminal 22 of at least one row of the conductive terminals is exposed to the through hole 100. The low-crosstalk high-speed socket electric connector further comprises a metal serial connection piece 3, wherein the metal serial connection piece 3 is combined in the through hole 100 and is elastically lapped with the grounding terminal 22 in at least one row of conductive terminals. Through in this application metal concatenation piece 3 realizes concatenating between different ground terminal 22 to make and keep equipotential (zero potential) between each ground terminal 22, and then improve the ground effect, guarantee signal terminal 21's high frequency resonance, and then ensure high-speed signal transmission's stability.

Referring to fig. 2 to 5, the insulative housing 1 includes an insulative base 11 formed by stacking a plurality of insulative substrates 111 along an arrangement direction (left-right direction) of at least one row of the conductive terminals, and the plurality of insulative substrates 111 includes a signal substrate 1111 and a ground substrate 1112. The signal substrate 1111 has signal terminals 21 bonded thereto, the ground substrate 1112 has ground terminals 22 bonded thereto, and the through holes 100 are formed through the respective insulating substrates 111. In the present application, four signal terminals 21 are coupled to each signal substrate 1111, and one ground terminal 22 is coupled to each ground substrate 1112. The signal terminals 21 in the insulating base 11 are arranged in four rows, and two signal substrates 1111 are stacked and clamped between two adjacent ground substrates 1112.

Referring to fig. 2 to 7, the insulating body 1 further includes an insulating housing 12, and the insulating housing 12 is sleeved on the periphery of the insulating base 11. The front end face of the insulating housing 12 forms two insertion spaces 10 and two insertion ports 101. The two plugging spaces 10 are arranged at intervals along the vertical direction, and two rows of the signal terminals 21 are correspondingly arranged in each plugging space 10. The low-crosstalk high-speed socket electric connector further comprises a metal shielding cage 4, and the metal shielding cage 4 covers the periphery of the insulating body 1.

Referring to fig. 2 to 5, the metal serial connector 3 is disposed between two rows of signal terminals 21 corresponding to one of the plugging spaces 10 and two rows of signal terminals 21 corresponding to the other plugging space 10, and the metal serial connector 3 is disposed beside one row of signal terminals 21 having the longest conductive path among the four rows of signal terminals 21 (i.e., outside, on the side without adjacent signal terminals 21). Further, at least two metal serial-connection members 3 are disposed between two rows of signal terminals 21 corresponding to one of the plugging spaces 10 and two rows of signal terminals 21 corresponding to the other plugging space 10, and at least three metal serial-connection members 3 (four metal serial-connection members 3 are disposed in the present application) are disposed beside one row of signal terminals 21 having the longest conductive path among the four rows of signal terminals 21.

In this application, at least one row of signal terminal 21 among the conductive terminal includes along the flat section 211 of horizontal direction (that is front and back direction) extension, along the vertical section 212 of vertical direction (that is upper and lower direction) extension and connect flat section 211 and the middle slope section 213 of vertical section 212, metal serial connection piece 3 is located the middle slope section 213 position of signal terminal 21 and inclines to set up and be parallel with the slope direction of middle slope section 213. The design is beneficial to the contact between the metal serial connection piece 3 and the corresponding grounding terminal 22, the spacing balance between the metal serial connection piece 3 and the corresponding row of signal terminals 21 can be ensured as far as possible, and the high-frequency influence of the metal serial connection piece 3 on the signal terminals 21 can be unified. The characteristic impedance is favorably adjusted.

Referring to fig. 3 to 7, the metal connecting string member 3 includes an elongated metal strap member 31 and an elongated metal latch member 32. The metal strap 31 includes a body 311 and a plurality of elastic straps 312 formed by further bending and extending the body 311, and the elastic straps 312 elastically connect with the corresponding ground terminals 22. The metal latch piece 32 is attached to the body 311 to press the metal strap 31 such that the elastic strap 312 is elastically connected to the corresponding ground terminal 22.

Referring to fig. 7 and fig. 4 to 6, the through hole 100 includes a first through hole 1001 and a second through hole 1002 parallel to and communicated with the first through hole 1001, the metal latch member 32 is inserted and accommodated in the second through hole 1002, the body portion 311 of the metal strap 31 is accommodated in the first through hole 1001, the width of the second through hole 1002 is greater than that of the first through hole 1001, and the width of the metal latch member 32 is greater than that of the body portion 311. Further, the through hole 100 further includes a contact hole 1003, the contact hole 1003 is parallel to and communicated with a first through hole 1001, the first through hole 1001 is located between the contact hole 1003 and a second through hole 1002, the ground terminal 22 in at least one row of the conductive terminals is exposed into the contact hole 1003, and the elastic strap 312 protrudes into the contact hole 1003 and elastically overlaps with the ground terminal 22. Further, the ground terminal 22 of at least one row of the conductive terminals is formed with a protrusion 221 protruding into the contact hole 1003, and the elastic bridging piece 312 is elastically bridged with the protrusion 221.

In this application, when assembling, receive first: insert metal bridging member 31 in through-hole 100 because one side of the high-speed socket electric connector of low crosstalk, because the design of first through-hole 1001 and second through-hole 1002, the width of second through-hole 1002 is greater than the setting of first through-hole 1001 simultaneously, make metal bridging member 31 can hold simultaneously in the time of inserting in the through-hole 1002 with first through-hole 1001 and second through-hole 1002, so can guarantee to insert the in-process of through-hole 100 at metal bridging member 31, the emergence elasticity of elasticity bridging sheet 312 as far as possible and as small as possible range is buckled, do not take place elasticity even and buckle. Secondly, the method comprises the following steps: in the process of inserting the metal latch piece 32 into the through hole 100, specifically inserting the metal latch piece 32 into the second through hole 1002, the metal latch piece 32 pushes the metal strap 31 into the first through hole 1001, so as to force the metal strap 31 to be combined into the first through hole 1001, and in the process, the elastic strap 312 is elastically deformed and elastically contacts with the convex portion 221 of the corresponding ground terminal 22. In this arrangement, the width of the metal latch piece 32 is greater than the width of the metal strap 31, and the design that the width of the second through hole 1002 is greater than the width of the first through hole 1001 is matched, so that the metal latch piece 32 can only be inserted into and combined with the second through hole 1002.

Referring to fig. 3 and 4, of course, a reverse hook 321 is formed at one end of the metal pin 32, and after the metal pin 32 is completely inserted into the second through hole 1002, the reverse hook 321 can be fastened and fixed with a corresponding position of the insulating body 1 to realize a reverse stop position. The other end of the metal latch 32 is bent to form an insertion stop portion 322 for insertion stop.

According to the scheme, on one hand, the metal bridging piece 31 and the metal bolt piece 32 are convenient to assemble, and on the other hand, the times of elastic deformation of the elastic bridging piece 312 on the metal bridging piece 31 can be reduced as much as possible, so that the possibility of plastic deformation is reduced; on the other hand, the elastic strap 312 can be fully contacted with the ground terminal 22 through one-time deformation as much as possible, so that the contact stability is better, and the contact force of each elastic strap 312 and the ground terminal 22 can be ensured to be the same; in addition, the number of times of scraping of the elastic bridging piece 312 and the ground terminal 22 at the time of assembly can be reduced, the generation of scraping burrs can be reduced, and the overall performance stability of the electrical connector can be ensured at the same time.

Although the present application has been described in detail with reference to preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the present application.

The above description is only a part of the embodiments of the present application, and not all embodiments, and any equivalent changes to the technical solutions of the present application, which are made by those skilled in the art through reading the present specification, are covered by the claims of the present application.

Claims (12)

1. The utility model provides a high-speed socket electric connector of low crosstalk for electrically connect to the circuit board, including insulator and with a plurality of conductive terminal that insulator is fixed, a plurality of conductive terminal arranges and is at least one row, at least one row conductive terminal includes a plurality of signal terminal and a plurality of ground terminal of arranging according to specific rule, the preceding terminal surface of insulator inwards caves in and forms the grafting space that is used for pegging graft butting connector and forms the interface, insulator runs through along at least one row conductive terminal's array direction and is formed with the through-hole, at least one row ground terminal among the conductive terminal exposes to the through-hole in, its characterized in that: the metal serial connection piece is combined in the through hole and is in elastic lap joint with at least two grounding terminals in at least one row of the conductive terminals.

2. The low crosstalk, high speed receptacle electrical connector of claim 1, wherein: the metal series connection piece comprises a metal overlapping piece, the metal overlapping piece comprises a body part and a plurality of elastic overlapping pieces formed by further bending and extending the body part, and the elastic overlapping pieces are in elastic overlapping with the corresponding grounding terminals.

3. The low crosstalk, high speed receptacle electrical connector of claim 2, wherein: the metal serial connection piece further comprises a metal plug pin piece, and the metal plug pin piece is attached to the body portion to extrude the metal overlapping piece to enable the elastic overlapping piece to be in elastic overlapping with the corresponding grounding terminal.

4. The low crosstalk, high speed receptacle electrical connector of claim 3, wherein: the through holes comprise a first through hole and a second through hole which is parallel to and communicated with the first through hole, the metal plug pin piece is inserted and contained in the second through hole, the body part of the metal overlapping piece is contained in the first through hole, the width of the second through hole is larger than that of the first through hole, and the width of the metal plug pin piece is larger than that of the body part.

5. The low crosstalk, high speed receptacle electrical connector of claim 4, wherein: the through hole further comprises a contact hole, the contact hole is parallel to and communicated with the first through hole, the first through hole is located between the contact hole and the second through hole, the grounding terminal in at least one row of the conductive terminals is exposed into the contact hole, and the elastic overlapping piece protrudes into the contact hole and is in elastic overlapping joint with the grounding terminal.

6. The low crosstalk, high speed receptacle electrical connector of claim 5, wherein: the grounding terminal in at least one row of the conductive terminals is provided with a convex part protruding into the contact hole, and the elastic lapping sheet is in elastic lapping connection with the convex part.

7. The electrical low crosstalk high speed receptacle connector of any of claims 1 to 6, wherein: the insulating body comprises an insulating base formed by stacking a plurality of insulating substrates along the arrangement direction of at least one row of the conductive terminals, the insulating substrates comprise a signal substrate and a grounding substrate, signal terminals are combined in the signal substrate, grounding terminals are combined in the grounding substrate, and the through holes penetrate through the insulating substrates to form the insulating base.

8. The low crosstalk, high speed receptacle electrical connector of claim 7, wherein: four signal terminals are combined in each signal substrate, a grounding terminal is combined in each grounding substrate, the signal terminals in the insulating base are arranged in four rows, and two signal substrates are stacked and clamped between every two adjacent grounding substrates.

9. The low crosstalk, high speed receptacle electrical connector of claim 8, wherein: the low-crosstalk high-speed socket electric connector comprises an insulating body, wherein the insulating body comprises an insulating shell, the insulating shell is sleeved on the periphery of an insulating seat, the front end face of the insulating shell forms two plugging spaces and two plugging ports, the two plugging spaces are arranged at intervals along the vertical direction, two rows of signal terminals are correspondingly arranged in the plugging spaces, the low-crosstalk high-speed socket electric connector further comprises a metal shielding cage, and the metal shielding cage is arranged on the periphery of the insulating body.

10. The low crosstalk, high speed receptacle electrical connector of claim 8, wherein: the metal serial connection piece is arranged between two rows of signal terminals corresponding to one plugging space and two rows of signal terminals corresponding to the other plugging space, and the metal serial connection piece is arranged beside one row of signal terminals with the longest conductive path among the four rows of signal terminals.

11. The low crosstalk, high speed receptacle electrical connector of claim 10, wherein: at least two metal serial connection pieces are arranged between two rows of signal terminals corresponding to one plugging space and two rows of signal terminals corresponding to the other plugging space, and at least three metal serial connection pieces are arranged beside one row of signal terminals with the longest conductive path among the four rows of signal terminals.

12. The electrical low crosstalk high speed receptacle connector of any of claims 1 to 6, wherein: the signal terminals in at least one row of the conductive terminals comprise flat sections extending along the horizontal direction, vertical sections extending along the vertical direction and middle inclined sections connecting the flat sections and the vertical sections, and the metal serial connection pieces are located at the middle inclined sections of the signal terminals, are obliquely arranged and are parallel to the inclined direction of the middle inclined sections.

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