CN211655115U

CN211655115U - Electric connector

Info

Publication number: CN211655115U
Application number: CN202020445111.4U
Authority: CN
Inventors: 黄海燕
Original assignee: Dongguan Chengfeng Electronic Co Ltd
Current assignee: Dongguan Chengfeng Electronic Co Ltd
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2020-10-09
Anticipated expiration: 2030-03-31

Abstract

The utility model relates to an electric connector, which is provided with an insulating main body, a first terminal group, a second terminal group, a third terminal group and a fourth terminal group, wherein the inserting end of the insulating main body is provided with a tongue piece, the upper side surface of the tongue piece is provided with a raised step, and the step divides the upper side surface of the tongue piece into a plurality of sections; the first terminal group and the second terminal group comprise a plurality of grounding terminals, a first inner sinking assembly groove and a second inner sinking assembly groove are arranged on the tin pin end of the insulating main body, the first inner sinking assembly groove is distributed on the periphery of the first terminal group, the second inner sinking assembly groove is distributed on the periphery of the second terminal group, a first grounding piece is arranged in the first inner sinking assembly groove, and the first grounding piece is in short circuit connection with the grounding terminals of the first terminal group; a second grounding piece is arranged in the second inner sunken assembly groove and is in short circuit connection with a grounding terminal of the second terminal group; the utility model discloses an increase the different ground terminal of ground connection spare short-circuit connection, make ground terminal play better shielding effect, improved and crosstalked, satisfy the high frequency, the commonality is strong.

Description

Electric connector

Technical Field

The utility model relates to an electric connector.

Background

The PCIe (Peripheral Component interconnect express) connector is installed on a motherboard of a personal computer, wherein the PCIe multi-layer protocol is designed to increase the transmission speed of a bus inside the computer, and is suitable for transmitting high-quality audio/video signals. However, most of the existing PCIe Solid-State storage devices are in a board type, which not only restricts the application form, but also is only suitable for internal application of a server, and is difficult to be externally extended, and further cannot reduce the cost of PCIe storage devices, and thus cannot greatly expand the application of PCIe SSD (Solid State Drives).

Serial Attached SCSI (SAS) is the most popular Small Computer System Interface (SCSI) technology, and is widely used in servers and storage devices, but the speed of the existing SCSI Interface is relatively low.

With the development of novel technologies such as cloud computing and big data, in the internet market, the requirements of customers on data reading and writing and backup protection are higher and higher, the requirements on a high-medium-end memory card solution are continuously improved, and particularly, the requirements on characteristics such as cache capacity and data protection are clear. In order to meet the above requirements, an electrical connector inside an electronic product often adds additional conductive terminals, so as to increase the signal transmission rate by the additional conductive terminals. However, the direct problem with the increase of the number of the conductive terminals is that the various conductive terminals are easy to generate mutual crosstalk in the signal transmission process, thereby greatly reducing the signal transmission quality and failing to achieve the expected effect. In order to follow up the technical development trend, be beneficial to seizing the market and improve the brand influence of products, the corresponding equipment with higher transmission rate needs to be designed urgently.

Disclosure of Invention

An object of the utility model is to provide an electric connector can support the storage device of specifications such as PCIe, SATA, SAS and SATAExpress simultaneously, adapts to the high frequency and is high-speed.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an electrical connector at least having an insulating main body and a plurality of terminal sets, characterized in that: the insulating main body is provided with a plug-in end and a tin pin end which are opposite; the inserting end of the insulating main body is provided with a tongue piece, the tongue piece is provided with an upper side face and a lower side face, the upper side face is provided with a raised step, and the step divides the upper side face of the tongue piece into a plurality of sections; the plurality of terminal groups comprise a first terminal group, a second terminal group, a third terminal group and a fourth terminal group; the first terminal group and the second terminal group comprise a plurality of grounding terminals, a first inner sinking assembly groove and a second inner sinking assembly groove are arranged on the tin pin end of the insulating main body, the first inner sinking assembly groove is distributed on the periphery of the first terminal group, the second inner sinking assembly groove is distributed on the periphery of the second terminal group, a first grounding piece is arranged in the first inner sinking assembly groove, and the first grounding piece is in short circuit connection with the grounding terminals of the first terminal group; a second grounding piece is arranged in the second inner sunken assembly groove and is in short circuit connection with a grounding terminal of the second terminal group;

the first terminal group is formed by arranging a plurality of first terminals, and the first terminals are respectively provided with a first contact part and a first welding part; the first terminal group is implanted into the insulating main body, the first contact part leans against the lower side surface of the tongue piece, and the first welding part flatly clings to and extends along the corresponding side surface of the tin pin end of the insulating main body and exposes the tin pin end of the insulating main body;

the second terminal group is formed by arranging a plurality of second terminals, and the second terminals are respectively provided with a second contact part and a second welding part; the second terminal group is implanted into the insulating main body, the second contact part leans against the upper side surface of the tongue piece, and the second welding part leads out the tin pin end of the insulating main body and is bent;

a third terminal group consisting of a plurality of third terminals arranged in an array, wherein the third terminals are respectively provided with a third contact part and a third welding part; the third terminal group is implanted into the insulating main body, the third contact part leans against the surface of the step, and the third welding part leads out the tin pin end of the insulating main body and bends;

the fourth terminal group is formed by arranging a plurality of fourth terminals, and the fourth terminals are respectively provided with a fourth contact part and a fourth welding part; the fourth terminal group is implanted into the insulating main body, the fourth contact part leans against the upper side face of the tongue piece, and the fourth contact part of the fourth terminal group and the second contact part of the second terminal group are arranged on two sides of the step; the fourth welding part leads out the tin pin end of the insulating main body and is bent.

The scheme is further as follows: the first and second ground members are separate conductive sheets.

The scheme is further as follows: the first grounding piece and the second grounding piece are both conductive sheets, the first grounding piece and the second grounding piece are connected into a whole, and the first inner sunken assembling groove and the second inner sunken assembling groove are correspondingly communicated in an extending mode.

The scheme is further as follows: the first grounding piece is provided with a first elastic abutting part, the second grounding piece is provided with a second elastic abutting part, and the first elastic abutting part and the second elastic abutting part are used for abutting against the corresponding grounding terminals.

The scheme is further as follows: the first elastic abutting part is a grounding terminal which protrudes from one side of the first grounding piece to the first terminal group, a first connecting groove is arranged between the grounding terminal of the first terminal group and the first inner sinking assembly groove, and the first connecting groove meets the requirement that the first elastic abutting part protrudes and abuts against the grounding terminal of the first terminal group; the second elastic abutting part is a grounding terminal protruding from one side of the second grounding piece to the second terminal group, a second communicating groove is arranged between the grounding terminal of the second terminal group and the second inner-sinking assembling groove, and the second communicating groove meets the requirement that the second elastic abutting part protrudes and abuts against the grounding terminal of the second terminal group.

The scheme is further as follows: the second welding part, the third welding part and the fourth welding part are bent to form a row, and the width of the bent part of the second welding part, the third welding part and the fourth welding part is larger than that of the soldering position.

The scheme is further as follows: the upper surface and the lower surface of the tongue piece are respectively provided with a groove for accommodating and embedding the first contact part, the second contact part, the third contact part and the fourth contact part, the ends of the first contact part, the second contact part, the third contact part and the fourth contact part are provided with a chamfer part, the chamfer part is inserted into the clamping part of the groove extension structure, and the ends of the first contact part, the second contact part and the fourth contact part are subjected to width narrowing treatment.

The scheme is further as follows: the insulating main body is designed to be laid flat, wing parts are arranged at two side ends of the tongue piece, and positioning columns are arranged on the wing parts.

The scheme is further as follows: the electric connector at least supports four storage devices with specifications of PCIe, SATA, SAS and SATA Express.

The utility model discloses an increased conductive terminal improves signal transmission's rate, and the terminal that has integrateed different signal definitions is as an organic whole, integrates four kinds of specification connectors such as PCIe, SATA (Serial Advanced Technology Attachment), SAS (Serial Attached SCSI, Serial connection SCSI interface) and SATA Express (SATA international standard); meanwhile, different grounding terminals are connected through the added grounding piece in a short circuit mode, which is equivalent to the increase of the area of the grounding terminal, so that the grounding terminal can play a better shielding effect, the crosstalk generated by the signal terminal in the signal transmission process is reduced, the crosstalk is improved, the high frequency is met, the transmission of the signal with the supporting rate of 12GT/s is supported, and the grounding device is suitable for servers, external storage systems, hard disk drives/hard disk brackets, blade type processors and stacked cards, has strong universality and can better meet the requirements of customers.

Description of the drawings:

FIG. 1 is a schematic diagram of an embodiment of the present invention;

FIG. 2 is a schematic front view of the embodiment of FIG. 1;

FIG. 3 is a schematic diagram of a backside structure of the embodiment of FIG. 1;

FIG. 4 is an enlarged view of a portion of the embodiment of FIG. 3;

FIG. 5 is an exploded view of the embodiment of FIG. 1;

FIG. 6 is a schematic diagram of the internal structure of the embodiment of FIG. 1;

FIG. 7 is an exploded view of a second embodiment of the present invention;

fig. 8 is a schematic diagram of the back structure of the embodiment of fig. 7.

The specific implementation mode is as follows:

the conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings, so as to fully understand the objects, the features and the effects of the present invention.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1-8, the present invention relates to an electrical connector, the electrical connector of the present embodiment is a male electrical connector, which has an insulating main body 1 and a plurality of terminal sets, the insulating main body 1 is provided with an opposite inserting end 11 and a tin pin end 12, the inserting end of the insulating main body is provided with a tongue piece 13, the tongue piece 13 is provided with an upper side 131 and a lower side 132, the upper side 131 is provided with a raised step 133, and the step 133 divides the upper side 131 of the tongue piece 13 into a plurality of sections. The plurality of terminal groups comprise a first terminal group 2, a second terminal group 3, a third terminal group 4 and a fourth terminal group 5, wherein the first terminal group 2 and the second terminal group 3 respectively comprise a plurality of grounding terminals, the grounding terminals are arranged at intervals according to terminal arrangement, the grounding terminals are distributed among signal terminals for transmitting high-speed differential signals, and the grounding terminals and the signal terminals meet the terminal standard of a socket connector specified by the association. A first inner sinking assembly groove 121 and a second inner sinking assembly groove 122 are arranged on the tin pin end 12 of the insulating main body, the first inner sinking assembly groove 121 is distributed on the periphery of the first terminal group 2, the second inner sinking assembly groove 122 is distributed on the periphery of the second terminal group 3, a first grounding piece 6 is arranged in the first inner sinking assembly groove, and the first grounding piece 6 is in short circuit connection with a grounding terminal of the first terminal group 2; a second grounding piece 8 is arranged in the second inner sunken assembling groove 122, and the second grounding piece 8 is in short circuit connection with the grounding terminal of the second terminal group 3; therefore, the areas of the grounding terminals of the first terminal group 2 and the second terminal group 3 are increased respectively, so that the grounding terminals can have a better shielding effect, the crosstalk generated by the signal terminals in the signal transmission process is reduced, the crosstalk is improved, and the high frequency is met.

Referring to fig. 1 to 8, in the present embodiment, the first terminal set 2 is formed by arranging a plurality of first terminals, each of the first terminals has a first contact portion 21 and a first soldering portion 22; the first terminal set is embedded in the insulating body, the first contact portion 21 rests on the lower side 132 of the tongue, and the first soldering portion 22 extends along the corresponding side of the solder terminal 12 of the insulating body and exposes the solder terminal of the insulating body for subsequent soldering and inspection. The superposition joint part of the tin pin end 12 of the insulating main body and the first welding part 22 is as long as possible, so that the welding structure of the first welding part 22 is increased, the welding assembly quality is improved, and the requirements of high frequency and high speed are met. The second terminal group 3 is composed of a plurality of second terminal arrays, each of the second terminals has a second contact portion 31 and a second soldering portion 32; the second terminal set is embedded in the insulating body, the second contact portion 31 rests on the upper side 131 of the tongue piece, and the second soldering portion 32 leads out the tin pin end of the insulating body and is bent. The third terminal group 4 is composed of a plurality of third terminals arranged in an array, and each third terminal is provided with a third contact part 41 and a third welding part 42; the third terminal group is implanted into the insulating body, the third contact part 41 leans against the surface of the step 133, and the third welding part 42 leads out the tin pin end of the insulating body and is bent. The fourth terminal group 5 is formed by arranging a plurality of fourth terminals, and each fourth terminal is provided with a fourth contact part 51 and a fourth welding part 52; a fourth terminal group implanted in the insulating body, the fourth contact portion resting on the upper side 131 of the tongue, the fourth contact portion of the fourth terminal group and the second contact portion of the second terminal group being disposed on both sides of the step 133; the fourth welding part leads out the tin pin end of the insulating main body and is bent. Preferably, in this embodiment, the first terminal group 2 is composed of a forty-pin first terminal arrangement, the second terminal group 3 is composed of a seven-pin second terminal arrangement, the third terminal group 4 is composed of a six-pin third terminal arrangement, the fourth terminal group 5 is composed of a fifteen-pin fourth terminal arrangement, the first terminal group 2, the second terminal group 3, the third terminal group 4 and the fourth terminal group 5 are selected according to a specification standard, the rate of signal transmission is increased by adding conductive terminals, terminals defined by different signals are integrated into a whole, and four specification connectors such as PCIe, SATA (Serial advanced technology Attachment), SAS (Serial Attached SCSI, Serial Attached SCSI interface) and SATA Express (international SATA standard) are integrated; the electric connector at least supports four storage devices with specifications of PCIe, SATA, SAS and SATA Express. Of course, the method can be further expanded according to actual needs, and meets the requirements of multiple protocols and multiple functions.

Referring to fig. 1 to 6, in the present embodiment, the first grounding piece 6 and the second grounding piece 8 are independent conductive sheets and are separately manufactured; the first grounding piece 6 and the second grounding piece 8 are respectively embedded in the corresponding first inner-sinking assembling groove 121 and the second first inner-sinking assembling groove 122, the shape and the size of the corresponding inner-sinking assembling grooves are matched with the grounding pieces, and the first grounding piece 6 and the second grounding piece 8 are correspondingly distributed on the peripheries of the first terminal group and the second terminal group, respectively, the first grounding piece 6 and the second grounding piece 8 are in short-circuit connection with the grounding terminals of the first terminal group and the second terminal group, respectively, all different grounding terminals of the first terminal group and the second terminal group are connected together, equivalently, the area of the grounding terminal is increased, so the arrangement can enable the grounding terminal to achieve a better shielding effect, reduce the crosstalk generated by the signal terminal in the signal transmission process, improve the crosstalk and meet the high frequency.

Referring to fig. 7 and 8, in addition to the above-mentioned configuration, the first ground element 6 and the second ground element 8 may be in the form of conductive sheets, and the first ground element 6 and the second ground element 8 are integrally connected to be manufactured together. At this time, the corresponding first inner-sinking assembling groove 121 and the second inner-sinking assembling groove 122 extend and communicate correspondingly to match the first grounding piece 6 and the second grounding piece 8 and to connect all the grounding terminals of the first terminal group and the second terminal group in a short circuit, which is equivalent to increase the area of the grounding terminal.

Referring to fig. 1 to 8, in the present embodiment, the first grounding part 6 is provided with a first elastic abutting part 61, the second grounding part 8 is provided with a second elastic abutting part 81, and the first elastic abutting part 61 and the second elastic abutting part 81 are used for abutting against corresponding grounding terminals. The first elastic abutting portion 61 and the second elastic abutting portion 81 can be obtained by a press-forming method, have sufficient elastic strength, and ensure close abutment with the corresponding ground terminals. Further, the method comprises the following steps: the first elastic abutting part 61 is a grounding terminal protruding from one side of the first grounding piece 6 to the first terminal set 2, a first connecting groove 123 is arranged between the grounding terminal of the first terminal set and the first inner sink assembling groove 121, and the first connecting groove 123 meets the requirement that the first elastic abutting part 61 protrudes and abuts against the grounding terminal of the first terminal set 2; the second elastic abutting portion 81 is a grounding terminal protruding from one side of the second grounding member 8 to the second terminal set 3, a second communicating groove 124 is provided between the grounding terminal of the second terminal set 3 and the second inner sunken assembling groove 122, and the second communicating groove 124 satisfies that the second elastic abutting portion 81 protrudes to abut against the grounding terminal of the second terminal set 3. First elasticity butt portion 61 and second elasticity butt portion 81 are arranged protruding the stretching according to the position of the ground terminal of butt that will on first ground connection piece 6 and second ground connection piece 8 respectively to see through first intercommunication groove 123 and second intercommunication groove 124 counterpoint butt ground terminal respectively, realize insulating main part internal connection, do not expose, do not receive external force to destroy, guarantee validity and the durability of butt, also optimized the equipment process of product, promote product packaging quality.

Referring to fig. 1 to 8, in the present embodiment, the second welding portion 32, the third welding portion 42 and the fourth welding portion 52 are bent to form a row, which facilitates welding and assembling; the width of the bent part of the second welding part 32, the third welding part 42 and the fourth welding part 52 is larger than that of the welding position, so that the impedance is reduced, and the connector is more matched with the high-frequency requirement of the system. The upper side 131 and the lower side 132 of the tongue 13 are respectively provided with a groove 134 for the first contact portion 21, the second contact portion 31, the third contact portion 41 and the fourth contact portion 51 to be inserted, the ends of the first contact portion, the second contact portion, the third contact portion and the fourth contact portion are provided with a chamfer portion, the chamfer portion is inserted into the clamping portion 135 of the groove extension structure, the width of the ends of the first contact portion 21, the second contact portion 31 and the fourth contact portion 51 is narrowed, the impedance is increased, and the connector is more matched with the high-frequency requirement of the system. The insulation main body 1 is designed to be laid flat, wing parts 14 are arranged at two side ends of the tongue piece, and the wing parts 14 are provided with positioning columns 7 to facilitate welding of an upper plate.

Referring to fig. 1-8, the electric connector of the present invention has the following steps,

step 1: and the grounding piece is assembled and inserted into the corresponding inner sinking assembly groove.

Step 2: and riveting the grounding piece to ensure that the grounding piece is stably positioned in the inner sinking assembling groove.

And step 3: and assembling the positioning column, inserting the positioning column into the rubber core, preferably selecting the positioning column as a copper column, and forming on the material belt.

And 4, step 4: and riveting the positioning column and removing the material belt.

And 5: and assembling the first terminal set, and implanting the first terminal set corresponding to the terminal hole on the insulating main body.

Step 6: and riveting the first terminal group, and removing the material belt.

And 7: and assembling the second terminal group and the fourth terminal group, and implanting the second terminal group and the fourth terminal group corresponding to the terminal holes in the insulating main body.

And 8: and riveting the second terminal group and the fourth terminal group, and removing the material belt.

And step 9: and assembling the third terminal group, and implanting the third terminal group corresponding to the terminal hole on the insulating main body.

Step 10: and riveting the third terminal group, and removing the material belt.

Step 11: the adsorption cover is assembled for the requirement of the subsequent process.

Although the preferred embodiments of the present invention have been described in connection with the accompanying drawings, the present invention should not be limited to the exact construction and operation as described and illustrated, and many equivalent modifications and variations of the above-described embodiments may be made by logical analysis, reasoning or limited experimentation by those skilled in the art without departing from the spirit and scope of the present invention, which should fall within the scope of the claims.

Claims

1. An electrical connector at least having an insulating main body and a plurality of terminal sets, characterized in that: the insulating main body is provided with a plug-in end and a tin pin end which are opposite; the inserting end of the insulating main body is provided with a tongue piece, the tongue piece is provided with an upper side face and a lower side face, the upper side face is provided with a raised step, and the step divides the upper side face of the tongue piece into a plurality of sections; the plurality of terminal groups comprise a first terminal group, a second terminal group, a third terminal group and a fourth terminal group; the first terminal group and the second terminal group comprise a plurality of grounding terminals, a first inner sinking assembly groove and a second inner sinking assembly groove are arranged on the tin pin end of the insulating main body, the first inner sinking assembly groove is distributed on the periphery of the first terminal group, the second inner sinking assembly groove is distributed on the periphery of the second terminal group, a first grounding piece is arranged in the first inner sinking assembly groove, and the first grounding piece is in short circuit connection with the grounding terminals of the first terminal group; a second grounding piece is arranged in the second inner sunken assembly groove and is in short circuit connection with a grounding terminal of the second terminal group;

2. An electrical connector as defined in claim 1, wherein: the first and second ground members are separate conductive sheets.

3. An electrical connector as defined in claim 1, wherein: the first grounding piece and the second grounding piece are both conductive sheets, the first grounding piece and the second grounding piece are connected into a whole, and the first inner sunken assembling groove and the second inner sunken assembling groove are correspondingly communicated in an extending mode.

4. An electrical connector as claimed in claim 2 or 3, wherein: the first grounding piece is provided with a first elastic abutting part, the second grounding piece is provided with a second elastic abutting part, and the first elastic abutting part and the second elastic abutting part are used for abutting against the corresponding grounding terminals.

5. An electrical connector as defined in claim 4, wherein: the first elastic abutting part is a grounding terminal which protrudes from one side of the first grounding piece to the first terminal group, a first connecting groove is arranged between the grounding terminal of the first terminal group and the first inner sinking assembly groove, and the first connecting groove meets the requirement that the first elastic abutting part protrudes and abuts against the grounding terminal of the first terminal group; the second elastic abutting part is a grounding terminal protruding from one side of the second grounding piece to the second terminal group, a second communicating groove is arranged between the grounding terminal of the second terminal group and the second inner-sinking assembling groove, and the second communicating groove meets the requirement that the second elastic abutting part protrudes and abuts against the grounding terminal of the second terminal group.

6. An electrical connector as defined in claim 1, wherein: the second welding part, the third welding part and the fourth welding part are bent to form a row, and the width of the bent part of the second welding part, the third welding part and the fourth welding part is larger than that of the soldering position.

7. An electrical connector as defined in claim 1, wherein: the upper surface and the lower surface of the tongue piece are respectively provided with a groove for accommodating and embedding the first contact part, the second contact part, the third contact part and the fourth contact part, the ends of the first contact part, the second contact part, the third contact part and the fourth contact part are provided with a chamfer part, the chamfer part is inserted into the clamping part of the groove extension structure, and the ends of the first contact part, the second contact part and the fourth contact part are subjected to width narrowing treatment.

8. An electrical connector as defined in claim 1, wherein: the insulating main body is designed to be laid flat, wing parts are arranged at two side ends of the tongue piece, and positioning columns are arranged on the wing parts.

9. An electrical connector as defined in claim 1, wherein: the electric connector at least supports four storage devices with specifications of PCIe, SATA, SAS and SATA Express.