Electric connector

Abstract

An electric connector comprises an insulator, terminals and a grounding piece, the insulator comprises a base portion extending in the longitudinal direction and a lingual plate extending forwards from the base portion, the terminals comprise a row of first terminals and a row of second terminals which are arranged on the two sides of the lingual plate respectively, and the first terminals and the second terminals comprise signal terminals and grounding terminals respectively; the grounding piece is arranged on the insulator in an insert injection molding mode, the grounding piece comprises a plate-shaped body part and a first contact part protruding from the body part to the grounding terminal in the first terminals, and the first contact part abuts against the corresponding grounding terminal. The grounding piece is arranged on the insulator in an insert injection molding mode and can be tightly connected with the lingual plate, and the strength of the lingual plate can be effectively enhanced.

Description

[Technical field]

[0001] The invention relates to an electric connector, in particular to an electric connector used for high frequency transmission. [Background technology]

[0002] For related prior art, please refer to the high-frequency connector disclosed in patent application No. CN112350090A, which includes an insulating body and a plurality of terminals held in the insulating body, the insulating body includes a base and a tongue extending forward from the base, the terminals include grounding terminals and signal terminals and are distributed on both sides of the tongue, and a grounding plate electrically connects the grounding terminals to reduce signal crosstalk and improve the high-frequency performance of the connector. Among them, for the assembly of the grounding plate, a receiving cavity that opens backward from the base and extends forward to the tongue is often opened on the insulator, and then the grounding piece is plugged into the receiving cavity from the opening. In this assembly process, since the tongue needs to be partially hollowed out in advance to form the receiving cavity, it will cause the tongue strength to deteriorate.

[0003] Therefore, it is necessary to provide an improved electrical connector to solve the above problems. [Summary of the invention]

[0004] The main object of the present invention is to provide an electrical connector with good strength.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an electrical connector, comprising an insulator, a terminal and a grounding member, the insulator comprising a base extending in the longitudinal direction and a tongue extending forward from the base, the terminal comprising a row of first terminals and a row of second terminals respectively arranged on both sides of the tongue, the first terminals and the second terminals respectively comprising a signal terminal and a grounding terminal; the grounding member is arranged on the insulator by insert injection molding, the grounding member comprises a plate-shaped main body and a first contact portion protruding from the main body toward the grounding terminal in the first terminal, the first contact portion abuts against the corresponding grounding terminal.

[0006] Furthermore, the tongue plate is provided with a first positioning groove on the side where the second terminal is provided, and the first positioning groove allows a positioning mold edge to pass through and press the grounding member in the direction of the first terminal, thereby achieving positioning of the grounding member during injection molding.

[0007] Furthermore, the grounding member includes a second contact portion protruding from the main body toward a grounding terminal among the second terminals, and the second contact portion abuts against a corresponding grounding terminal.

[0008] Furthermore, the tongue plate is provided with a second positioning groove on the side where the first terminal is provided, and the second positioning groove allows a positioning mold edge to pass through and press the grounding member toward the second terminal side, thereby positioning the grounding member during injection molding.

[0009] Furthermore, the grounding piece includes ears arranged at both ends thereof and buried in the base, the insulator includes a first insulator provided with a tongue plate and a second insulator surrounded by the first insulator, the ear includes a vertical portion extending in a vertical direction perpendicular to the main body and buried in the first insulator, and a horizontal portion extending outward along a horizontal plane, and the horizontal portion is buried in the second insulator.

[0010] Furthermore, the first terminal includes a horizontal portion and a pin bent from the horizontal portion, and the first contact portion is a longitudinal rib extending from the base to a position adjacent to the front end of the tongue plate.

[0011] Furthermore, the grounding member includes a second contact portion protruding from the main body toward the grounding terminal in the second terminal, the second contact portion is in the shape of a convex rib, extending from the base to the front end near the tongue plate, and the main body is provided with an opening at the corresponding signal terminal.

[0012] Furthermore, the grounding member is a metal plate, and the first contact portion is a sealing convex bump formed by punching the main body portion.

[0013] Furthermore, the grounding member is a metal plate, the first contact portion is a stamped strip formed by cutting and then stamping the main body, both sides of the stamped strip are cutting surfaces, and both ends of the stamped strip are provided with stamped bending portions connected to the main body.

[0014] Furthermore, a front end surface of the tongue plate is provided with a plurality of slots, and the grounding member is exposed in the slots to connect with the material strip.

[0015] Compared with the prior art, the grounding piece of the present invention is arranged on the insulator by insert injection molding, and there is no need to hollow out the tongue plate locally first. It can be tightly connected to the tongue plate, which can effectively enhance the strength of the tongue plate.

Brief Description of the Drawings

[0016] Figure 1 It is a three-dimensional diagram of the electrical connector of the present invention.

[0017] Figure 2 yes Figure 1 A perspective view of the electrical connector, wherein the second insulator is separated from the first insulator.

[0018] Figure 3 yes Figure 1 Partial top view of the CEC connector.

[0019] Figure 4 yes Figure 1 Partial bottom view of the CEC connector.

[0020] Figure 5 yes Figure 2 A three-dimensional exploded view of the Chinese electric connector after removing the second insulator.

[0021] Figure 6 yes Figure 5 Another angle of the three-dimensional exploded view of the CEC connector.

[0022] Figure 7 yes Figure 2 A three-dimensional view of the electrical connector, wherein the grounding element is connected to the material strip and is separated from the insulator.

[0023] Figure 8 yes Figure 1 Cross-sectional view of the CEC connector along line AA.

[0024] Fig. 9 is a perspective view of an electrical connector according to a second embodiment of the present invention.

[0025] Fig.10 yes Fig. 9 Partial top view of the CEC connector.

[0026] Fig.11 yes Fig. 9 Partial bottom view of the CEC connector.

[0027] Fig.12 yes Fig. 9 A perspective view of the electrical connector, wherein the second insulator is separated from the first insulator.

[0028] Fig.13 yes Fig.12 A three-dimensional exploded view of the Chinese electric connector after removing the second insulator.

[0029] Fig.14 yes Fig.13 Another angle of the three-dimensional exploded view and the partial enlarged view of CEC Connection.

[0030] Fig.15 yes Fig.12 A three-dimensional view of the electrical connector, wherein the grounding element is connected to the material strip and is separated from the insulator.

[0031] Fig.16 yes Fig. 9 Sectional view along line BB

[0032]

Component Symbol Description

[0033] Electrical connector 100 Flat plate portions 210 , 220

[0034] Insulator 10 Pins 211, 221

[0035] First insulator 101 Second terminal 22

[0036] Second insulator 102 Grounding member 30

[0037] Guide groove 1021 body part 300

[0038] Base 11 Ear 301

[0039] Inner base 110 Vertical portion 302

[0040] Tongue plate 12 horizontal portion 303

[0041] First positioning grooves 121, 121a Main body 31

[0042] Second positioning grooves 122, 122a Bending portion 310a

[0043] Groove 123 First contact portion 32, 32a

[0044] Terminal 20 Second contact portion 33, 33a

[0045] First terminal 21 opening 34

[0046] Ground terminal 21G, 22G Strip 40

[0047] Signal terminals 21S, 22S

[0048] The following specific implementation manner will further illustrate the present invention in conjunction with the above-mentioned drawings. [Specific implementation method]

[0049] In order to facilitate a better understanding of the purpose, structure, characteristics and effects of the present invention, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods.

[0050] See also Figure 1 As shown, the electrical connector 100 of the present invention is a connector for transmitting high-frequency signals and can be docked with an external connector. By adopting the SFF-8639 transmission interface and the first-generation PCIe5.0 transmission protocol, its transmission bandwidth can reach 128GB / s.

[0051] See also Figure 1-2 as well as Figure 5As shown, the electrical connector 100 of the present invention includes an insulator 10, a terminal 20 and a grounding member 30. The insulator 10 includes a base 11 extending in the longitudinal direction and a tongue plate 12 extending forward from the base 11. The terminal 20 includes a row of first terminals 21 and a row of second terminals 22 respectively arranged on both sides of the tongue plate 12. The first terminals 21 and the second terminals 22 respectively include signal terminals 21S and 22S and grounding terminals 21G and 22G. The first terminals 21 and the second terminals 22 respectively include flat plate portions 210 and 211. 20 and pins 211, 221, the grounding member 30 is set on the insulator 10 by insert injection molding, the grounding member 30 includes a plate-shaped main body 300 and a first contact portion 32 protruding from the main body 300 to the grounding terminal 21G in the first terminal 21, the first contact portion 32 abuts against the corresponding grounding terminal 21G, and the grounding member 30 is set in the tongue plate 12 by insert molding, which can effectively strengthen the strength of the tongue plate 12, make the strength of the tongue plate 12 more reliable, and extend its service life. Further combined Figure 8 The first contact portion 32 is a longitudinal rib extending from the base 11 to the front end of the tongue plate 12 . Thus, the first contact portion 32 and the flat plate portion 210 of the first terminal 21 have a larger contact area, achieving better and more stable contact.

[0052] In this embodiment, in order to better fix the grounding member 30 in the tongue plate 12, the grounding member 30 is provided with hanging ears 301 buried in the insulator 10 at both ends thereof. The insulator 10 includes a first insulator 101 provided with a tongue plate, and a second insulator 102 covering at least part of the first insulator 101, wherein the first insulator 101 also includes a partial base located at the rear end of the tongue plate 12, hereinafter referred to as the inner base 110, and the second insulator 102 at least partially surrounds the outer periphery of the inner base 110, and the second insulator 102 includes a guide groove 1021 extending along the front and back, and the guide groove 1021 is located at both ends of the longitudinal length of the second insulator 102, which is used to guide the external connector when docking with the external connector. In this embodiment, the second insulator 102 can be molded on the outside of the first insulator 101 by secondary injection molding, or after the first insulator 101 and the second insulator 102 are molded separately, the two can be buckled together by buckling. The hanging ear 300 includes a vertical portion 302 extending in a vertical direction perpendicular to the main body 31 and buried in the first insulator 101 , and a horizontal portion 303 extending outward along a horizontal plane and buried in the second insulator 102 . Preferably, the vertical portion 302 is buried in the inner base 110 .

[0053] See also Figure 3The tongue plate 12 is provided with a first positioning groove 121 on the side where the second terminal 22 is provided. The first positioning groove 121 allows a positioning die (not shown in the figure) to pass through during insert injection molding and press the grounding member 30 in the direction of the first terminal 21, thereby achieving positioning of the grounding member 30 during injection molding. Figure 6-7 The grounding member 30 includes a second contact portion 33 protruding from the body portion 31 toward the grounding terminal 22G in the second terminal 22, and the second contact portion 33 abuts against the corresponding grounding terminal 22G. The second contact portion 32 is basically the same in structure as the first contact portion 32, and is in the shape of a convex rib, extending from the base portion 31 to the front end of the tongue plate 12. The tongue plate 12 is provided with a second positioning groove 122 on the side where the first terminal 21 is provided. The second positioning groove 122 allows a positioning die to pass through and press the grounding member 30 toward the side of the second terminal 22, thereby realizing the positioning of the grounding member 30 during injection molding. In this embodiment, the body portion 31 is provided with an opening 34 at the corresponding signal terminal.

[0054] Continue to see Figure 7 The front end surface of the tongue plate 12 is provided with a plurality of slots 123, and the grounding member 30 is exposed in the slots 123 to connect the material strip 40. In this way, the material strip 40 can be bent and disconnected from the front end of the tongue plate 12. Compared with the traditional grounding member installation method that requires opening a receiving cavity in the tongue plate and inserting the grounding member into the receiving cavity, the opening of the receiving cavity is continuous in the horizontal direction and is not suitable for being opened at the front end of the tongue plate. Therefore, in the traditional installation method, the grounding member can only be installed from the opening at the rear end of the insulator, and its material strip can only be located at the rear end of the insulator. Compared with the traditional installation method, the present application can not only improve the strength of the tongue plate 12, but also make the material strip located in front of the tongue plate during installation. It can be understood that in other embodiments, after the grounding member 30 is insert-molded in the tongue plate 12, the material strip 40 can also be located behind the tongue plate 12, that is, the material strip is bent and removed from the rear of the tongue plate 12, and after the grounding member 30 is formed in the tongue plate 12, the first terminal 21 and the second terminal 22 are respectively inserted into the two sides of the tongue plate 12. In this embodiment, the grounding member 30 is preferably made of metal, and for the convenience of processing and molding, the first contact portion 32 is a sealing convex bump formed by stamping from a side of the body portion 31 close to the second terminal 22 to a side close to the first terminal 21.

[0055] Figure 9-16 The second embodiment of the present invention is shown, and its structure is substantially the same as the first embodiment. Only the main differences are described below. The same structure uses the same component symbols and is not described in detail again.

[0056] Please refer to 9-10. In this embodiment, the first positioning groove 121a and the second positioning groove 122a on the tongue plate 12 may include hole-shaped positioning grooves in addition to the long strip-shaped grooves similar to those in the first embodiment. Fig.13 and Fig.15 In this embodiment, the structures of the first contact portion 32a and the second contact portion 33a provided on the grounding member 30 are different from those of the first embodiment. In this embodiment, the grounding member 30 is also a metal plate, and the first contact portion 32a is a stamped strip formed by cutting the main body 31 and then stamping. Both sides of the stamped strip are cutting surfaces, and both ends of the stamped strip are provided with stamped bending portions 310a connected to the main body 31.

[0057] The above are only preferred embodiments of the present invention, and should not be used to limit the scope of the present invention. That is, all simple equivalent changes and modifications made according to the claims and the contents of the present invention should still fall within the scope of the present invention.

Claims

1. An electrical connector, comprising an insulator, a terminal and a grounding member, wherein the insulator comprises a base extending in the longitudinal direction and a tongue extending forward from the base, the terminal comprises a row of first terminals and a row of second terminals respectively arranged on both sides of the tongue, the first terminals and the second terminals respectively comprising a signal terminal and a grounding terminal; characterized in that: The grounding member is arranged on the insulator by insert injection molding, and comprises a plate-shaped main body and a first contact portion protruding from the main body toward a grounding terminal in the first terminals, wherein the first contact portion abuts against the corresponding grounding terminal.

2. The electrical connector according to claim 1, wherein: The tongue plate is provided with a first positioning groove on the side where the second terminal is provided, and the first positioning groove allows a positioning mold edge to pass through and press the grounding member in the direction of the first terminal, so as to achieve positioning of the grounding member during injection molding.

3. The electrical connector according to claim 1 or 2, characterized in that: The grounding member includes a second contact portion protruding from the main body toward a grounding terminal of the second terminals, and the second contact portion abuts against a corresponding grounding terminal.

4. The electrical connector according to claim 3, wherein: The tongue plate is provided with a second positioning groove on the side where the first terminal is provided, and the second positioning groove allows a positioning mold edge to pass through and press the grounding member toward the second terminal side, thereby positioning the grounding member during injection molding.

5. The electrical connector according to claim 1, wherein: The grounding piece includes hanging ears arranged at both ends thereof and buried in the base, the insulator includes a first insulator provided with a tongue plate and a second insulator surrounded by the first insulator, the hanging ear includes a vertical portion extending in a vertical direction perpendicular to the main body and buried in the first insulator, and a horizontal portion extending outward along a horizontal plane, and the horizontal portion is buried in the second insulator.

6. The electrical connector according to claim 1, wherein: The first terminal includes a horizontal portion and a pin bent from the horizontal portion. The first contact portion is a longitudinal rib extending from the base to a position near the front end of the tongue plate.

7. The electrical connector according to claim 6, wherein: The grounding member includes a second contact portion protruding from the body toward the grounding terminal in the second terminal. The second contact portion is in the shape of a convex rib and extends from the base to the front end of the tongue plate. The body is provided with an opening at the corresponding signal terminal.

8. The electrical connector according to claim 1 or 6, characterized in that: The grounding member is a metal plate, and the first contact portion is a sealing convex bump formed by punching the main body portion.

9. The electrical connector according to claim 1 or 6, characterized in that: The grounding piece is a metal plate, the first contact portion is a stamped strip formed by cutting and then stamping the main body, both sides of the stamped strip are cutting surfaces, and both ends of the stamped strip are provided with stamped bending portions connected to the main body.

10. The electrical connector according to claim 1, wherein: The front end surface of the tongue plate is provided with a plurality of slots, and the grounding piece is exposed in the slots to connect with the material strip.

Images