CN112217019A - High speed connector - Google Patents

Abstract

A high-speed connector is used for being electrically connected to a circuit board and comprises an insulating body and a plurality of conductive terminals fixed to the insulating body, wherein the conductive terminals are arranged in two rows, each row of conductive terminals comprises a plurality of signal terminals and a plurality of grounding terminals which are arranged according to a specific rule, the front end face of the insulating body is inwards sunken to form an inserting space for inserting a butting connector and form an inserting port, and the high-speed connector also comprises a plurality of series-connection pieces, and the series-connection pieces are used for serially connecting the grounding terminals in one row of conductive terminals so as to improve the high-frequency resonance of the high-speed connector.

Description

High speed connector

[ technical field ] A method for producing a semiconductor device

The embodiment of the invention relates to the field of communication transmission, in particular to a high-speed connector.

[ 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.

The prior art refers to chinese patent No. CN106353864, which discloses a small SFP connector, including an insulating body, a first conductive terminal, a second conductive terminal, and a fixing member, where the insulating body includes a base, sidewalls located at two sides of the base, and a top wall opposite to the base; a first terminal accommodating groove communicated with the butt joint cavity is formed in the base; a second terminal accommodating groove communicated with the butt joint cavity is formed in the inner side of the top wall; the first conductive terminal is accommodated in the first terminal accommodating groove, the second conductive terminal is accommodated in the second terminal accommodating groove, and the fixing piece and the second conductive terminal are integrated into a whole through injection molding. One row of terminals of such SFP connectors typically includes pairs of differential signal pairs and ground terminals for spacing each pair of differential signal pairs. In use of the SFP connector disclosed in the related art, since the terminal conductive extension path is long, a potential difference may occur between the ground terminals and affect high-frequency resonance of each pair of differential signal terminals.

In view of the above, there is a need for an improved high speed connector that solves the above problems.

[ summary of the invention ]

An object of the application is to provide a new electrical connector assembly with better high frequency resonance and better grounding effect.

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

a high-speed connector is used for being electrically connected to a circuit board and comprises an insulating body and a plurality of conductive terminals fixed to the insulating body, wherein the conductive terminals are arranged in two rows, each row of conductive terminals comprises a plurality of signal terminals and a plurality of grounding terminals which are arranged according to a specific rule, the front end face of the insulating body is inwards sunken to form an inserting space for inserting a butting connector and form an inserting port, and the high-speed connector also comprises a plurality of series-connection pieces, and the series-connection pieces are used for serially connecting the grounding terminals in one row of conductive terminals.

Further, the piece of concatenating includes top piece of concatenating, insulator top surface undercut is formed with the mounting groove that extends along conductive terminal array direction, top piece of concatenating combines in the mounting groove, the mounting groove is formed with the through-hole along the position that direction of height and ground terminal correspond, top piece of concatenating correspond pass the through-hole and with correspond the ground terminal overlap joint.

Furthermore, the conductive terminals include a first row of conductive terminals and a second row of conductive terminals, the actual effective conductive path of each conductive terminal in the first row of conductive terminals is longer than the actual effective conductive path of each conductive terminal in the second row of conductive terminals, and the series connection piece at least connects the ground terminals in the first row of conductive terminals in series.

Furthermore, each conductive terminal in the first row of conductive terminals comprises a fixed part fixed in the insulating body, a contact part extending forwards into the plugging space from one end of the fixed part, an elevated part formed by further extending the other end of the fixed part and a butt joint part corresponding to the butt joint of the circuit board and formed by extending the free end of the elevated part, wherein the elevated part is provided with a bending part, the series connection piece comprises a corner series connection piece, and the corner series connection piece connects the grounding terminal in the first row of conductive terminals in series at a position close to the bending part.

Furthermore, fixing pieces are formed at two ends of the corner serial connection piece along the arrangement direction of the conductive terminals respectively, and the fixing pieces are correspondingly inserted and fixed in the insulating body.

Further, the bent portion is exposed outside the insulating body.

Furthermore, the bending part comprises a horizontal section and a vertical section, the horizontal section extends along the plugging direction of the butting connector approximately, the vertical section is connected with the horizontal section and extends along the vertical direction approximately, and the corner part serial connection piece comprises a first welding foot welded and fixed with the horizontal section and a second welding foot welded and fixed with the vertical section.

Furthermore, the horizontal section and the vertical section of each grounding terminal in the first row of conductive terminals are respectively and correspondingly welded and fixed with the corner series connection piece.

Furthermore, each grounding terminal in the first row of conductive terminals is in surface contact with the corner series connection piece.

Furthermore, the corner series-connection piece comprises a main body part with a similar bending trend to the bending part, the horizontal section and the vertical section are formed by further extending the edge of the main body part, and the distance between the main body part and the bending part ranges from 0.2 mm to 0.4 mm.

Further, the series connection piece also comprises a bottom series connection piece, the bottom series connection piece is located below the corner series connection piece along the up-down direction, and the bottom series connection piece is used for serially connecting the grounding terminals in the first row of conductive terminals.

Further, the bottom concatenation piece includes the main part piece, and extends a plurality of welding piece that forms along the main part piece side, the welding piece correspond with each ground terminal welded fastening in the first row of conductive terminal, the main part piece is at 0.2 to 0.4 millimeter with the interval scope that corresponds between the ground terminal.

Furthermore, a plurality of contact portions contacting with the serial connection pieces are formed on the same grounding terminal, and the contact portions are uniformly distributed along the actual effective conductive path of the corresponding grounding terminal.

Furthermore, insulator includes the diapire, by the lateral wall that the diapire both sides upwards extend and form, by the diapire rear end upwards extend the back wall that forms and with the diapire sets up and connects the roof of lateral wall and back wall relatively, diapire, lateral wall, back wall and roof enclose jointly and establish and form the grafting space, first row of conductive terminal is fixed in back wall and the roof, the second row of conductive terminal is fixed in the diapire.

Compared with the prior art, the method has the following beneficial effects: improving the high frequency resonance of the high speed connector.

[ description of the drawings ]

FIG. 1 is a perspective view of a high speed electrical connector of the present application;

FIG. 2 is a schematic perspective view of FIG. 1 from another angle;

FIG. 3 is a top plan view of the high speed electrical connector of FIG. 1;

FIG. 4 is a bottom view of the high speed connector of FIG. 1;

FIG. 5 is a cross-sectional view taken along line A-A of FIG. 3;

fig. 6 is a perspective view of the cross-sectional view of fig. 5 from another angle, in order to more visually and stereoscopically show the structure of the high-level electrical connector, particularly the relationship between the conductive terminals and the series-connected components;

fig. 7 is an exploded perspective view of the sectional view of fig. 6, and the sectional view and the view of fig. 6 are selected for the purpose of showing the structure of each part of the high-speed electrical connector as enlarged as possible due to the longer high-speed electrical connector of the present application.

[ 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. 1, wherein the extending direction of the X axis is the arrangement direction of the conductive terminals 2 (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, the present application discloses a high-speed connector for electrical connection to a circuit board (not shown). The high-speed electric connector comprises an insulating body 1 and a plurality of conductive terminals 2 fixed with the insulating body 1. The plurality of conductive terminals 2 are arranged in two rows and divided into a first row of conductive terminals 201 and a second row of conductive terminals 202. Each row of conductive terminals 2 includes a plurality of signal terminals 21 and a plurality of ground terminals 22 arranged according to a specific rule, and the specific rule in the present application is that two signal terminals 21 are sandwiched between two adjacent ground terminals 22.

Referring to fig. 1, 2, 6 and 7, the insulation body 1 includes a top wall 11, a bottom wall 12, a left side wall 13, a right side wall 14 and a rear wall 15, the top wall 11 and the bottom wall 12 are oppositely disposed along an up-down direction, the left side wall 13 and the right side wall 14 are oppositely disposed along a left-right direction and are respectively combined with the left side and the right side of the top wall 11 and the bottom wall 12, the rear wall 15 is combined with the rear end positions of the top wall 11, the bottom wall 12, the left side wall 13 and the right side wall 14, the top wall 11, the bottom wall 12, the left side wall 13, the right side wall 14 and the rear wall 15 together enclose to form an insertion space 10 and form an insertion opening 101 (the insertion space 10 can also be described as being formed by inward recessing of the front. The first row of conductive terminals 201 is fixed in the rear wall 15 and the top wall 14, and the second row of conductive terminals 202 is fixed in the bottom wall 11.

Each conductive terminal 2 in the first row of conductive terminals 201 includes a terminal fixing portion 211 fixed in the rear wall 15 and the top wall 14, a contact portion 212 extending from one end of the fixing portion 211 into the inserting space 10, an elevated portion 213 formed by extending from the other end of the fixing portion 211, and a mating portion 214 formed by further extending the elevated portion 213 and corresponding to a circuit board. The rear wall 15 is formed with the groove 1501 of stepping down in the surface of laminating in the circuit board is inside sunken, at least some conductive terminal 2 in the first row of conductive terminal 201 correspond with the groove 1501 of stepping down along the up-down direction and expose to the groove 1501 of stepping down. In this application, specifically, the avoiding groove 1501 at least corresponds to the plurality of ground terminals 22.

The receding groove 1501 penetrates through the insulating body 1 in the vertical direction. The cross sectional area of one end of the relief groove 1501 close to the circuit board is larger than that of one end of the relief groove 1501 far away from the circuit board.

Referring to fig. 2, 4, 5 to 7, the high-speed connector of the present application further includes a plurality of serial-connection elements 3 (three serial-connection elements 3 in the present application), and each serial-connection element 3 connects the ground terminals 22 in one row of conductive terminals 2 in series to form a network-shaped conductive loop for improving high-frequency resonance.

Referring to fig. 5 to 7, the serial connection member 3 includes a top serial connection member 31, a mounting groove 110 extending along an arrangement direction (an X-axis extending direction) of the conductive terminals 2 is formed in a downward recess of a top surface (i.e., an upper surface of the top wall 14) of the insulation body 1, the top serial connection member 31 is combined with the mounting groove 110, a through hole 1101 is formed in a position of the mounting groove 110 corresponding to the ground terminal 22 along a height direction, and a corresponding position of the top serial connection member 31 passes through the through hole 1101 and is overlapped with the corresponding ground terminal 22.

Referring to fig. 5 to 7, the actual effective conductive paths of the conductive terminals 2 in the first row of conductive terminals 201 are longer than the actual effective conductive paths of the conductive terminals 2 in the second row of conductive terminals 202, the ground terminals 22 in the first row of conductive terminals 201 are connected in series by the series connection element 3, the longer the conductive paths of the conductive terminals 2 are, the more the conductive terminals 2 are bent, the more the conductive terminals 2 are, the more the high-frequency resonance and crosstalk are affected, which is not favorable for high-speed transmission. This application can effectively realize improving high frequency resonance through tandem connection piece 3, improves and disturbs.

Please refer to fig. 6 and fig. 7. The raised portion 213 has a bent portion 2131, and the bent portion 2131 is exposed outside the insulating body 1. The stringer 3 comprises a corner stringer 32. The corner connecting member 32 connects the ground terminals 22 in the first row of conductive terminals 201 in series at a position adjacent to the bending portion 2131. In other words, the corner linking member 32 is located at the position of the notch portion 102. In this application, a notch 102 is formed at an upper position of one end of the insulating main body 1, which is far away from the insertion port 101, at least a portion of the bent portion 2131 is exposed into the notch 102, and the notch 102 is disposed to communicate with the relief groove 1501 in the vertical direction.

Referring to fig. 5 to 7, the notch 102 is open along a direction away from the circuit board and is open along a direction away from the insertion opening 101. The first solder leg 322 electrically contacts the ground terminal 22 of the first row of conductive terminals 201 along the vertical direction and corresponds to the relief groove 1501. Rear end wall 15 is still inwards sunken being formed with mould groove 1502 in the surface of laminating in the circuit board, mould groove 1502 is close to grafting space 10, the groove 1501 of stepping down is kept away from grafting space 10. In this application, the number of the yielding slots 1501 is equal to the number of the ground terminals 22 in the first row of conductive terminals 201

In the present application, the bending portion 2131 includes a horizontal segment 2132 extending substantially along the plugging and unplugging direction of the mating connector, and a vertical segment 2133 connected to the horizontal segment 2132 and extending substantially along the vertical direction. The corner connecting member 32 includes a first solder leg 322 welded to the horizontal section 2132 and a second solder leg 323 welded to the vertical section 2133. The first solder tail 322 is soldered to the ground terminal 22 in the first row of conductive terminals 201 in the notch 102. Further, the corner connecting piece 32 includes a main body 320 with a similar bending tendency to the bending portion 2131, the horizontal portion 2132 and the vertical portion 2133 are formed by further extending the edge of the main body 320, and the distance between the main body 320 and the bending portion 2131 is in the range of 0.2 to 0.4 mm, preferably 0.3 mm. The design is carried out in this way, and experiments prove that the resonant cavity has better high-frequency resonance.

Referring to fig. 6 and 7, fixing pieces 321 are respectively formed at two ends of the corner connecting piece 32 along the arrangement direction of the conductive terminals 2, and the fixing pieces 321 are correspondingly inserted and fixed in the insulating body 1. In this application, the horizontal section 2132 and the vertical section 2133 of each ground terminal 22 in the first row of conductive terminals 201 are respectively welded and fixed to the corner connecting piece 32. Each ground terminal 22 in the first row of conductive terminals 201 is in surface contact with the corner string 32. That is, the corner string 32 forms two contact sites with each ground terminal 22 in the first row of conductive terminals 201.

Referring to fig. 6 and 7, the serial connection member 3 further includes a bottom serial connection member 33, the bottom serial connection member 33 is located below the corner serial connection member 32 along the up-down direction, and the bottom serial connection member 33 serially connects the ground terminals 22 in the first row of conductive terminals 201. The bottom serial connector 33 includes a main body piece 331 and a plurality of welding sheets 332 extending along the side of the main body piece 331, the welding sheets are welded and fixed with the ground terminals 22 in the first row of conductive terminals 201, and the distance between the main body piece 331 and the corresponding ground terminal 22 is 0.2 to 0.4 mm, preferably 0.3 mm.

In this application, the number of the serial connection pieces 3 is three, and the serial connection pieces 3 and the ground terminals 22 in the first row of conductive terminals 201 form two contact positions. A plurality of contact portions (not numbered) that contact the serial elements 3 are formed on the same ground terminal 22, and the contact portions are uniformly distributed along the actual effective conductive path of the corresponding ground terminal 22.

In this application, through setting up a plurality of concatenations 3 and then improving the high frequency resonance of high-speed connector, the position and the structural design of each concatenations 3 are verified through the experiment, have very good improvement high frequency resonance effect.

In this application, a relief groove 1501 is formed at a local position of the rear wall 15 of the insulating body 1, into which a mold core (not shown) is inserted to support the ground terminals 22 of the first row of conductive terminals 201, so as to prevent the ground terminals 22 from being locally deformed when the corner connecting piece 32 is welded to the ground terminals 22 of the first row of conductive terminals 201. In addition, the relief groove 1501 can improve the fluidity of the molten plastic during the integral molding. The mold runner 1502 is also used to improve the flowability of the molten plastic during the integral molding. Specifically, the thickness difference of each part of the insulating body is reduced, and the injection molding performance is improved. The sectional area of one section of the receding groove 1501 is large, and the sectional area of one end of the receding groove is small, so that the inserted mold core has better design strength. In addition, the extending height of the receding groove 1501 with a large cross section area is larger than that of the receding groove 1501 with a small cross section area along the vertical direction, so that the inserted mold core has better design strength, and the fluidity of the molten plastic can be improved. Finally, the structural strength of the insulating body 1 after molding is ensured.

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 (14)

1. The utility model provides a high-speed connector for electric connection is to circuit board, includes insulator and a plurality of conductive terminal fixed with insulator, a plurality of conductive terminal arranges and is two rows of settings, and each row of conductive terminal all includes a plurality of signal terminal and a plurality of ground terminal arranged according to specific rule, the inside sunken grafting space that is used for pegging graft butting connector that forms of preceding terminal surface of insulator and forms interface, its characterized in that: the series-connection piece is used for serially connecting the grounding terminals in one row of conductive terminals.

2. The high-speed connector of claim 1, wherein: the series connection piece comprises a top series connection piece, the top surface of the insulation body is downwards sunken to form a mounting groove extending along the arrangement direction of the conductive terminals, the top series connection piece is combined with the mounting groove, a through hole is formed in the position, corresponding to the grounding terminal, of the mounting groove along the height direction, and the top series connection piece correspondingly penetrates through the through hole and is in lap joint with the corresponding grounding terminal.

3. The high-speed connector of claim 1, wherein: the conductive terminals comprise a first row of conductive terminals and a second row of conductive terminals, the actual effective conductive path of each conductive terminal in the first row of conductive terminals is longer than that of each conductive terminal in the second row of conductive terminals, and the series connection piece at least serially connects the grounding terminals in the first row of conductive terminals.

4. The high-speed connector of claim 3, wherein: each conductive terminal in the first row of conductive terminals comprises a fixed part fixed in the insulating body, a contact part extending forwards into the inserting space from one end of the fixed part, an elevated part formed by further extending the other end of the fixed part and a butt joint part corresponding to the butt joint of the circuit board and formed by extending the free end of the elevated part, wherein the elevated part is provided with a bending part, the series connection piece comprises a corner series connection piece, and the corner series connection piece serially connects the grounding terminals in the first row of conductive terminals at a position close to the bending part.

5. The high-speed connector of claim 4, wherein: fixing pieces are formed at two ends of the corner serial connection piece along the arrangement direction of the conductive terminals respectively, and the fixing pieces are correspondingly inserted and fixed in the insulating body.

6. The high-speed connector of claim 4, wherein: the bending part is exposed out of the insulating body.

7. The high-speed connector of claim 4, wherein: the bending part comprises a horizontal section and a vertical section, the horizontal section extends along the plugging direction of the butting connector approximately, the vertical section is connected with the horizontal section and extends along the vertical direction approximately, and the corner part serial connection piece comprises a first welding leg and a second welding leg, the first welding leg is welded and fixed with the horizontal section, and the second welding leg is welded and fixed with the vertical section.

8. The high-speed connector of claim 7, wherein: and the horizontal section and the vertical section of each grounding terminal in the first row of conductive terminals are respectively and correspondingly welded and fixed with the corner series connection piece.

9. The high-speed connector of claim 7, wherein: and each ground terminal in the first row of conductive terminals is in surface contact with the corner series connection piece.

10. The high-speed connector of claim 7, wherein: the corner series-connection piece comprises a main body part with a similar bending trend to the bending part, the horizontal section and the vertical section are formed by further extending the edge of the main body part, and the distance between the main body part and the bending part ranges from 0.2 mm to 0.4 mm.

11. The high-speed connector of claim 4, wherein: the string connecting piece further comprises a bottom string connecting piece, the bottom string connecting piece is located below the corner string connecting piece in the vertical direction, and the bottom string connecting piece is used for serially connecting the grounding terminals in the first row of conductive terminals.

12. The high-speed connector of claim 11, wherein: the bottom is concatenated a piece and is included the main part piece, and extend a plurality of welding piece that forms along the main part piece side, the welding piece correspond with each ground terminal welded fastening in the first row of conductive terminal, the main part piece is at 0.2 to 0.4 millimeter with the interval scope that corresponds between the ground terminal.

13. The high-speed connector of claim 1, wherein: a plurality of contact parts which are contacted with the serial connection pieces are formed on the same grounding terminal, and the contact parts are uniformly distributed along the actual effective conductive path of the corresponding grounding terminal.

14. The high-speed connector of claim 3, wherein: the insulation body comprises a bottom wall, a side wall formed by upwards extending two sides of the bottom wall, a rear wall formed by upwards extending the rear end of the bottom wall and a top wall oppositely arranged with the bottom wall and connected with the side wall and the rear wall, the bottom wall, the side wall, the rear wall and the top wall jointly enclose to form the splicing space, the first row of conductive terminals are fixed in the rear wall and the top wall, and the second row of conductive terminals are fixed in the bottom wall.

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