TWM614121U - Electrical connector - Google Patents

Abstract

An electrical connector has at least an insulating body and a plurality of terminal groups, which includes: the insulating body is provided with a plug end and a tin pin end facing opposite to each other; the plug end of the insulating body is provided with a tongue, the The tongue piece has an upper side surface and a lower side surface. A raised step is provided on the upper side surface, and the step divides the upper side surface of the tongue piece into multiple sections; the plural terminal group includes a first terminal group, a second terminal group, a third terminal group and a first terminal group. The four terminal groups are used to implant the insulating body. Each terminal group is composed of several terminals. The first terminal has a first contact part leaning on the lower side of the tongue, and a first contact part extending along the corresponding side of the insulating body and exposing the tin pin end. Welding part; the second terminal has a second contact part leaning on the upper side of the tongue, and a second welding part that leads out the tin pin end of the insulating body and bends; the third terminal group has a third contact leaning on the surface of the step Part, and a third welding part that leads out the tin pin end of the insulating body and bends; the four-terminal group has a fourth contact part leaning on the upper side of the tongue, and a third welding part that leads out the tin pin end of the insulating body and bends Four welding department.

Description

An electric connector

This creation belongs to a kind of electrical connector.

Nowadays, PCIe (Peripheral Component Interconnect Express) connectors are installed on the motherboard of personal computers. The PCIe multi-layer protocol is designed to increase the transfer rate of the internal bus of the computer and is suitable for transmitting high-quality audio and video. Signal. However, most of the existing PCIe solid-state storage devices adopt the board card type, which not only restricts the application type, but only applies to the internal application of the server. It is also difficult to externally expand, and it cannot reduce the cost of PCIe storage equipment. Therefore, it has not been able to greatly expand PCIe. SSD (Solid State Drives, solid state drive) applications.

Serial Attached SCSI (English: Serial Attached SCSI, abbreviation: SAS) is the most commonly used small computer system interface (English: Small Computer System Interface, abbreviation: SCSI) technology, which is widely used in servers and storage devices, but The existing SCSI interface speed is relatively low.

With the development of new technologies such as cloud computing and big data, in the Internet market, customers have higher and higher requirements for data reading and writing, and backup protection. The demand for high- and mid-end memory card solutions continues to increase, especially for cache capacity, data Features such as protection have clear requirements. In order to meet the above requirements, electrical connectors inside electronic products often add additional conductive terminals, which increase the signal transmission rate. However, the direct problem brought about by the increase in the number of conductive terminals is that various conductive terminals are prone to crosstalk during signal transmission, which greatly reduces the quality of signal transmission and cannot achieve the desired effect. In order to keep up with technological development trends, conducive to seizing the market and enhancing product brand influence, there is an urgent need to design corresponding equipment with higher transmission rates.

The purpose of this creation is to provide an electrical connector that can support storage devices of PCIe, SATA, SAS and SATA Express specifications at the same time, adapting to high frequency and high speed.

In order to achieve the above objectives, this creation adopts the following technical solutions: An electrical connector at least has an insulating body and a plurality of terminal groups, and is characterized in that: the insulating body is provided with a plug terminal and a tin pin terminal opposite to each other; the plug terminal of the insulating body is provided with a tongue, the The tongue piece has an upper side surface and a lower side surface. A raised step is provided on the upper side surface, and the step divides the upper side surface of the tongue piece into multiple sections; the plural terminal group includes a first terminal group, a second terminal group, a third terminal group and a first terminal group. Four terminal group; the first terminal group and the second terminal group include a plurality of grounding terminals, the tin pin end of the insulating body is provided with first and second inner sink assembly grooves, and the first inner sink assembly grooves are distributed in the first On the periphery of a terminal group, the second inner sink assembly groove is distributed on the periphery of the second terminal group, the first inner sink assembly groove is provided with a first grounding piece, and the first grounding piece is short-circuited to the ground terminal of the first terminal group; A second grounding piece is provided in the two inner sinking assembly grooves, and the second grounding piece is short-circuited to the grounding terminals of the second terminal group; The first terminal group is composed of a plurality of first terminals arranged in an array, the first terminals respectively have a first contact part and a first welding part; the first terminal group is implanted in the insulating body, and the first contact part leans on the lower side of the tongue, The first welding portion extends flat and extends along the corresponding side surface of the tin pin end of the insulating body and exposes the tin pin end of the insulating body; The second terminal group is composed of a plurality of second terminals arranged in an arrangement, the second terminals respectively have a second contact part and a second welding part; the second terminal group is implanted in the insulating body, and the second contact part leans on the upper side of the tongue, The second welding part leads out and bends the tin pin end of the insulating body; The third terminal group is composed of a plurality of third terminals arranged in an arrangement. The third terminals respectively have a third contact part and a third welding part; the third terminal group is implanted in the insulating body, and the third contact part leans on the surface of the step. The soldering part leads to the tin pin end of the insulating body and bends; The fourth terminal group is composed of a plurality of fourth terminals arranged in an arrangement. The fourth terminals respectively have a fourth contact part and a fourth welding part; the fourth terminal group is implanted in the insulating body, and the fourth contact part rests on the upper side of the tongue, The fourth contact part of the fourth terminal group and the second contact part of the second terminal group are arranged on both sides of the step; the fourth welding part leads out the tin pin end of the insulating body and is bent.

The above solution is further that: the first grounding member and the second grounding member are independent conductive sheets.

The above solution is further: the first grounding piece and the second grounding piece are both conductive sheets, and the first grounding piece and the second grounding piece are connected as a whole, and the first sinking assembly slot and the second sinking assembly slot extend correspondingly Connected.

The above solution is further: the first grounding member is provided with a first elastic abutting portion, the second grounding member is provided with a second elastic abutting portion, the first elastic abutting portion and the second elastic abutting portion are used for abutting Connect the corresponding ground terminal.

The above solution is further: the first elastic abutting portion is a ground terminal protruding from one side of the first grounding member toward the ground terminal of the first terminal group, and a first inner sink assembly groove is provided between the ground terminal of the first terminal group and the first inner sink assembly groove. A communicating groove, the first communicating groove meets the requirement that the first elastic abutting portion protrudes and abuts against the ground terminal of the first terminal group; the second elastic abutment portion protrudes from one side of the second grounding member to the second The ground terminal of the terminal group, the ground terminal of the second terminal group and the second inner sink assembly groove are provided with a second communication groove, and the second communication groove meets the requirement that the second elastic abutting portion protrudes and abuts against the second terminal group Ground terminal.

The above solution is further: the bending of the second welding part, the third welding part, and the fourth welding part form a row, and the material width of the bending part of the second welding part, the third welding part, and the fourth welding part is larger than the solder position The material width of the element.

The above solution is further: the upper side and the lower side of the tongue are respectively provided with grooves for receiving the first contact portion, the second contact portion, the third contact portion and the fourth contact portion, the first contact portion, the second contact portion The ends of the contact portion, the third contact portion, and the fourth contact portion are provided with chamfered portions, the chamfered portion is inserted into the locking portion of the groove extending structure, the first contact portion, the second contact portion, and the fourth contact portion The width of the end is narrowed.

The above solution is further that: the insulating main body is a flat design, and wings are provided at both ends of the tongue, and the wings are provided with positioning posts.

The above solution is further: the electrical connector supports at least four storage devices of PCIe, SATA, SAS and SATA Express specifications at the same time.

This creation increases the signal transmission rate by adding conductive terminals, integrates terminals with different signal definitions, and integrates PCIe, SATA (Serial Advanced Technology Attachment), SAS (Serial Attached SCSI, serial connection) Four types of connectors such as SCSI interface) and SATA Express (SATA international standard); at the same time, by adding grounding pieces to short-circuit different grounding terminals, it is equivalent to increasing the area of the grounding terminal. This configuration can make the grounding terminal perform better The masking effect reduces the crosstalk generated by the signal terminal during the signal transmission process, improves the crosstalk, meets the high frequency, supports the transmission of signals with a rate of 12GT/s, and is suitable for servers, external storage systems, and hard disk drives. Hard disk trays, blade processors and stackable cards are highly versatile and can better meet customer needs.

The following will further explain the concept, specific structure and technical effects of this creation in conjunction with the accompanying drawings, so as to fully understand the purpose, features and effects of this creation.

It should be noted that in the description of this creation, the terms "up", "down", "left", "right", "vertical", "horizontal", "inner", "outer" and other directions or The term of positional relationship is based on the direction or positional relationship shown in the drawings, which is only for ease of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as Restrictions on this creation. In addition, the terms "first", "second", "third", and "fourth" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance.

Referring to Figures 1 to 8, this creation relates to an electrical connector. The electrical connector of this embodiment is a male electrical connector. It has an insulating body 1 and a plurality of terminal groups. The insulating body 1 is provided with opposite sides. The plug-in end 11 and the tin-pin end 12 of the insulating body are provided with a tongue 13 on the plug-in end of the insulating body. The tongue 13 has an upper side 131 and a lower side 132. The upper side 131 is provided with a raised step 133, a step 133 The upper side 131 of the tongue piece 13 is divided into multiple sections. The plurality of terminal groups includes a first terminal group 2, a second terminal group 3, a third terminal group 4, and a fourth terminal group 5. Among them, the first terminal group 2 and the second terminal group 3 respectively include multiple ground terminals. Terminals and grounding terminals are arranged in accordance with the terminal arrangement and spacing. The grounding terminals are distributed between the signal terminals for transmitting high-speed differential signals. The grounding terminals and signal terminals comply with the terminal standards of socket connectors specified by the association. The tin pin end 12 of the insulating body is provided with a first inner sinking assembly groove 121 and a second inner sinking assembly groove 122. The first inner sinking assembly groove 121 is distributed around the periphery of the first terminal group 2, and the second inner sinking assembly groove 122 Distributed on the periphery of the second terminal group 3, a first grounding member 6 is provided in the first inner sinking assembly groove, and the first grounding member 6 is short-circuited to connect the grounding terminals of the first terminal group 2; the second inner sinking assembly groove 122 is provided There is a second grounding element 8, and the second grounding element 8 is short-circuited to connect the grounding terminals of the second terminal group 3; this is equivalent to increasing the area of the grounding terminals of the first terminal group 2 and the second terminal group 3 respectively. , Can make the ground terminal have 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 Figures 1 to 8, in this embodiment, the first terminal group 2 is composed of a plurality of first terminals arranged in an arrangement, and the first terminals respectively have a first contact part 21 and a first welding part 22; the first terminal group is implanted The insulating body, the first contact portion 21 is leaning on the lower side surface 132 of the tongue, and the first welding portion 22 extends flat along the corresponding side surface of the tin pin end 12 of the insulating body and exposes the tin pin end of the insulating body for subsequent welding and Detection. The overlapping part of the tin pin end 12 of the insulating body and the first welding part 22 is as long as possible, so as to increase the welding structure of the first welding part 22, improve the welding assembly quality, and meet the requirements of high frequency and high speed. The second terminal group 3 is composed of a plurality of second terminals arranged in an array, the second terminals respectively have a second contact portion 31 and a second welding portion 32; the second terminal group is implanted in the insulating body, and the second contact portion 31 is leaning on the tongue. On the side surface 131, the second welding 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 the third terminals respectively have a third contact portion 41 and a third welding portion 42; the third terminal group is implanted with an insulating body, and the third contact portion 41 is leaning against the surface of the step 133 Above, the third welding part 42 leads out the tin pin end of the insulating body and is bent. The fourth terminal group 5 is composed of a plurality of fourth terminals arranged in an arrangement, the fourth terminals respectively have a fourth contact portion 51 and a fourth welding portion 52; the fourth terminal group is implanted with an insulating body, and the fourth contact portion leans on the upper side of the tongue On 131, the fourth contact part of the fourth terminal group and the second contact part of the second terminal group are placed on both sides of the step 133; the fourth welding part leads out the tin pin end of the insulating 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, and 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 standard standards, and are selected by adding conductive terminals. Improve the signal transmission rate, integrate the terminals of different signal definitions into one, integrate PCIe, SATA (Serial Advanced Technology Attachment), SAS (Serial Attached SCSI, serial connection SCSI interface) and SATA Express (SATA) International standard) and other four specifications of connectors; the electrical connector that meets the requirements supports at least four storage devices of PCIe, SATA, SAS and SATA Express specifications at the same time. Of course, it can be further expanded according to actual needs to meet the requirements of multiple agreements and multiple functions.

Referring to Figures 1 to 6, in this embodiment, the first grounding member 6 and the second grounding member 8 are independent conductive sheets and are made separately; the first grounding member 6 and the second grounding member 8 are respectively embedded In the corresponding first inner sink assembly groove 121 and the second first inner sink assembly groove 122, the shape and size of the corresponding inner sink assembly groove match the grounding piece, and are correspondingly distributed on the periphery of the first terminal group and the second terminal group , The first grounding member 6 and the second grounding member 8 respectively short-circuit the grounding terminals of the first terminal group and the second terminal group to connect all the different grounding terminals of the first terminal group and the second terminal group together, which is equivalent In addition, the area of the ground terminal is increased. This arrangement can make the ground terminal have 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 Figures 7 and 8, in addition to the above-mentioned forms, the first grounding member 6 and the second grounding member 8 may also be in the form of conductive sheets, and the first grounding member 6 and the second grounding member 8 are connected as a whole, together Make. At this time, the corresponding first recessed assembly groove 121 and the second recessed assembly groove 122 are extended and communicated correspondingly to match the first grounding member 6 and the second grounding member 8 and inserting the first terminal group and the second terminal group The short-circuit connection of all the grounding terminals of the same is equivalent to increasing the area of the grounding terminal. This setting can make the grounding terminal have a better shielding effect, reduce the crosstalk generated by the signal terminal in the signal transmission process, and improve the crosstalk. Meet high frequency.

1 to 8, in this embodiment, the first grounding member 6 is provided with a first elastic abutting portion 61, and the second grounding member 8 is provided with a second elastic abutting portion 81, and the first elastic abutting portion The connecting portion 61 and the second elastic abutting portion 81 are used for abutting the corresponding ground terminals. The first elastic abutment portion 61 and the second elastic abutment portion 81 can be obtained by stamping, and have sufficient elastic strength to ensure a tight contact with the corresponding ground terminal. Further, the first elastic abutment portion 61 is a ground terminal protruding from one side of the first grounding member 6 toward the first terminal group 2, and is provided between the ground terminal of the first terminal group and the first inner sink assembly groove 121 There is a first communicating groove 123, the first communicating groove 123 meets the requirement that the first elastic contact portion 61 protrudes to contact the ground terminal of the first terminal set 2; the second elastic contact portion 81 is formed by the second grounding member One side of 8 protrudes toward the ground terminal of the second terminal group 3. A second communication groove 124 is provided between the ground terminal of the second terminal group 3 and the second inner sink assembly groove 122. The second communication groove 124 satisfies the second The elastic contact portion 81 protrudes to contact the ground terminal of the second terminal group 3. The first elastic abutment portion 61 and the second elastic abutment portion 81 are respectively arranged on the first grounding member 6 and the second grounding member 8 according to the position of the ground terminal to be abutted, and respectively pass through the first communication The groove 123 and the second communication groove 124 align with the grounding terminal to realize the internal connection of the insulating main body without being exposed or damaged by external force, ensuring the effectiveness and durability of the contact, and also optimizing the product assembly process and improving the product assembly quality.

1 to 8, in this embodiment, the second welding portion 32, the third welding portion 42, and the fourth welding portion 52 are bent to form a row, which is convenient for welding and assembly; the second welding portion 32, the third welding portion 32, and the third welding portion 52 are bent to form a row. The material width of the bending part of the welding part 42 and the fourth welding part 52 is larger than the material width of the solder bit, which reduces the impedance and makes the connector more compatible with the high frequency requirements of the system. The upper side 131 and the lower side 132 of the tongue 13 are respectively provided with grooves 134 for receiving the first contact portion 21, the second contact portion 31, the third contact portion 41, and the fourth contact portion 51. The first contact portion The ends of the second contact portion, the third contact portion, and the fourth contact portion are provided with chamfered portions, which are inserted into the locking portion 135 of the groove extension structure, the first contact portion 21, the second contact portion The ends of 31 and the fourth contact portion 51 are narrowed to increase the impedance, so that the connector can better match the high frequency requirements of the system. The insulating body 1 is a flat design, and is provided with wings 14 at both ends of the tongue. The wings 14 are provided with positioning posts 7 to facilitate upper plate welding.

Refer to Figures 1~8, the assembly steps of the electrical connector provided in this creation are as follows: Step 1: Assemble the grounding piece and insert it into the sink assembly slot; Step 2: Riveting the grounding piece, so that the grounding piece is firmly fixed in the sink assembly groove; Step 3: Assemble the positioning column, insert the positioning column into the rubber core, preferably the positioning column is a copper column, and form it on the material belt; Step 4: Riveting the positioning column and removing the material tape; Step 5: Assemble the first terminal group, and implant the corresponding terminal hole on the insulating body; Step 6: Riveting the first terminal group and removing the material tape; Step 7: Assemble the second terminal group and the fourth terminal group, and implant the corresponding terminal holes on the insulating body; Step 8: Riveting the second terminal group and the fourth terminal group, and remove the tape; Step 9: Assemble the third terminal group, implant the corresponding terminal hole on the insulating body; Step 10: Riveting the third terminal group and removing the material tape; Step 11: Assemble the suction cover for subsequent processes.

This creation increases the signal transmission rate by adding conductive terminals, integrates terminals with different signal definitions, and integrates PCIe, SATA (Serial Advanced Technology Attachment), SAS (Serial Attached SCSI, serial connection) Four types of connectors such as SCSI interface) and SATA Express (SATA international standard); at the same time, by adding grounding pieces to short-circuit different grounding terminals, it is equivalent to increasing the area of the grounding terminal. This configuration can make the grounding terminal perform better The masking effect reduces the crosstalk generated by the signal terminal during the signal transmission process, improves the crosstalk, meets the high frequency, supports the transmission of signals with a rate of 12GT/s, and is suitable for servers, external storage systems, and hard disk drives. Hard disk trays, blade processors and stackable cards are highly versatile and can better meet customer needs.

Although the preferred specific embodiments of the present creation are described above in conjunction with the accompanying drawings, the present creation should not be limited to the same structure and operation as the above description and accompanying drawings. For those skilled in the art, it will not exceed Many equivalent improvements and changes can be made to the above embodiments through logical analysis, reasoning or limited experiments under the concept and scope of the creation, but these improvements and changes should all fall within the scope of protection required by this creation.

1: Insulating body 11: Socket end 12: Tin pin end 121: assembly slot 122: assembly slot 123: The first connecting groove 124: Second communicating groove 13: Tongue 131: upper side 132: lower side 133: step 134: Groove 135: card slot department 14: Wings 2: The first terminal group 21: The first contact 22: The first welding part 3: The second terminal group 31: second contact 32: The second welding part 4: The third terminal group 41: third contact 42: The third welding part 5: The fourth terminal group 51: fourth contact 52: The fourth welding part 6: The first grounding piece 61: First elastic abutment part 7: Positioning column 8: The second grounding piece 81: second elastic abutment part

Figure 1 is a schematic diagram of the first implementation structure of the creation; 2 is a schematic diagram of the front structure of the embodiment in FIG. 1; 3 is a schematic diagram of the back structure of the embodiment in FIG. 1; 4 is an enlarged schematic diagram of a partial structure of the embodiment of FIG. 3; FIG. 5 is an exploded schematic diagram of the structure of the embodiment in FIG. 1; FIG. 6 is a schematic diagram of the internal structure of the embodiment in FIG. 1; Figure 7 is an exploded schematic diagram of the second implementation structure of the creation; FIG. 8 is a schematic diagram of the backside structure of the embodiment in FIG. 7.

1: Insulating body

11: Socket end

12: Tin pin end

13: Tongue

131: upper side

132: lower side

133: step

14: Wings

31: second contact

32: The second welding part

41: third contact

42: The third welding part

51: fourth contact

52: The fourth welding part

7: Positioning column

Claims (9)

An electrical connector has at least an insulating body and a plurality of terminal groups, which includes: The insulating main body is provided with a plug-in end and a tin pin end opposite to each other; the plug-in end of the insulating main body is provided with a tongue, the tongue has an upper side and a lower side, and a raised step is provided on the upper side , The step divides the upper side of the tongue into multiple sections; the plural terminal group includes 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 are A plurality of ground terminals are included, the tin pin end of the insulating body is provided with first and second sinker assembly grooves, the first sinker assembly grooves are distributed around the periphery of the first terminal group, and the second sinker assembly grooves Assembling grooves are distributed on the periphery of the second terminal group, the first inner sinking assembling groove is provided with a first grounding member, and the first grounding member is short-circuited to connect the grounding terminals of the first terminal group; the second inner sinking assembling groove Is provided with a second grounding member, and the second grounding member is short-circuited to the ground terminal of the second terminal group; The first terminal group is composed of a plurality of first terminals arranged in an array, and the first terminals respectively have a first contact portion and a first welding portion; the first terminal group is implanted in the insulating body, and the first contact portion leans against the tongue On the lower side surface of the sheet, the first welding portion extends flatly along the corresponding side surface of the tin foot end of the insulating body and exposes the tin foot end of the insulating body; The second terminal group is composed of a plurality of second terminals arranged in an array, and the second terminals respectively have a second contact portion and a second welding portion; the second terminal group is implanted in the insulating body, and the second contact portion leans against the tongue On the upper side surface of the sheet, the second welding portion leads out the tin pin end of the insulating body and is bent; The third terminal group is composed of a plurality of third terminals arranged in an arrangement, and the third terminals respectively have a third contact portion and a third welding portion; the third terminal group is implanted in the insulating body, and the third contact portion leans against the step On the surface, the third welding part leads out the tin pin end of the insulating body and bends; The fourth terminal group is composed of a plurality of fourth terminals arranged in an arrangement, and the fourth terminals respectively have a fourth contact portion and a fourth welding portion; the fourth terminal group is implanted in the insulating body, and the fourth contact portion leans against the tongue On the upper side surface of the sheet, the fourth contact part of the fourth terminal group and the second contact part of the second terminal group are placed on both sides of the step; the fourth welding part leads out the tin of the insulating body The end of the foot is bent. The electrical connector according to claim 1, wherein the first grounding member and the second grounding member are independent conductive sheets. The electrical connector according to claim 1, wherein the first grounding member and the second grounding member are both conductive sheets, and the first grounding member and the second grounding member are connected as a whole, the first The inner sink assembly groove and the second inner sink assembly groove extend and communicate with each other. An electrical connector according to claim 2 or 3, wherein the first grounding member is provided with a first elastic abutting portion, the second grounding member is provided with a second elastic abutting portion, and the first elastic The abutting portion and the second elastic abutting portion are used for abutting the corresponding ground terminal. The electrical connector according to claim 4, wherein the first elastic abutting portion protrudes from a side of the first grounding member toward the ground terminal of the first terminal group, and the first terminal group A first communication groove is provided between the ground terminal and the first inner sink assembly groove, and the first communication groove satisfies the requirement that the first elastic abutting portion protrudes to abut the ground terminal of the first terminal group; The two elastic abutting portions protrude from one side of the second grounding member toward the ground terminal of the second terminal group, and a second inner assembly groove is provided between the ground terminal of the second terminal group and the second inner sink assembly groove. A communicating groove, and the second communicating groove satisfies that the second elastic abutting portion protrudes and abuts against the ground terminal of the second terminal group. The electrical connector according to claim 1, wherein the bending of the second welding part, the third welding part, and the fourth welding part forms a row, and the second welding part, the third welding part, The material width of the bent portion of the fourth welding portion is greater than the material width of the solder bit. The electrical connector according to claim 1, wherein the upper side and the lower side of the tongue are respectively provided with the first contact portion, the second contact portion, the third contact portion, and the fourth contact portion. A groove for accommodating the contact portion, the ends of the first contact portion, the second contact portion, the third contact portion, and the fourth contact portion are provided with chamfered portions, and the chamfered portion is inserted into the groove extending structure In the detent portion, the ends of the first contact portion, the second contact portion, and the fourth contact portion are processed for width narrowing. The electrical connector according to claim 1, wherein the insulating body is a flat design, and wings are provided at both ends of the tongue, and the wings are provided with positioning posts. An electrical connector according to claim 1, wherein the electrical connector supports at least four storage devices of PCIe, SATA, SAS and SATA Express specifications at the same time.

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