Electric connector

Abstract

An electric connector comprises an insulator and two rows of terminals, the insulator comprises a lengthwise base part and a lingual plate extending forwards from the base part, the terminals comprise a row of first terminals arranged on the lower side of the lingual plate and a row of second terminals arranged on the upper side of the lingual plate, and the row of first terminals are fixed through an insulating strip and form a terminal module; the electric connector further comprises a grounding piece which is located in the tongue plate and fixed to the side, close to the second terminal, of the terminal module. The grounding piece comprises a front transverse strip, a rear transverse strip and a plurality of shielding parts, wherein the front transverse strip and the rear transverse strip are arranged in parallel, and the shielding parts are located between the front transverse strip and the rear transverse strip and connected with the front transverse strip and the rear transverse strip. At least part of the shielding part is provided with an avoiding groove, the avoiding groove penetrates through the shielding part in the vertical direction and extends forwards to penetrate through the front transverse strip, the insulator is provided with a supporting rib, and the supporting rib extends into the avoiding groove in a protruding mode. The arrangement of the supporting ribs can effectively enhance the strength of the tongue plate.

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 patent application with publication number CN112350090A, which discloses an electrical connector, which includes a plug body, two rows of terminals and a grounding plate. The plug body includes a longitudinal base and a tongue plate extending forward from the base, and the plug body is provided with a receiving groove which opens rearward and passes through the base, so that the grounding plate can be inserted into the receiving groove from the opening at the rear end. However, since the grounding plate includes a pair of beams, and the beams extend continuously in the longitudinal direction, the receiving groove must be hollowed out to allow the grounding plate to be installed in the receiving groove, which causes the strength of the tongue plate 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 better strength.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an electrical connector, comprising an insulator and two rows of terminals, the insulator comprising a longitudinal base and a tongue plate extending forward from the base, the terminals comprising a row of first terminals arranged on the lower side of the tongue plate and a row of second terminals arranged on the upper side of the tongue plate, the row of first terminals being fixed by an insulating strip to form a terminal module; the electrical connector also comprises a grounding piece located in the tongue plate and fixed to a side of the terminal module close to the second terminal, the grounding piece comprising a front horizontal bar and a rear horizontal bar arranged in parallel, and a plurality of shielding parts located between the front and rear horizontal bars and connecting the front and rear horizontal bars; at least part of the shielding part is provided with an avoidance groove, the avoidance groove penetrates the shielding part in the up-down direction and extends forward to penetrate the front horizontal bar, the insulator is provided with a support rib, and the support rib protrudes into the avoidance groove.

[0006] Furthermore, the avoidance groove is U-shaped, and the electrical connector also includes a connecting piece plugged into the front end of the avoidance groove, the connecting piece includes a main body and two elastic arms extending from the main body, and the two elastic arms are respectively electrically connected to the two side edges of the avoidance groove to electrically connect the front horizontal bar.

[0007] Furthermore, a slot communicating with the avoidance groove is provided at the front end of the tongue plate, and the connecting member is inserted into the avoidance groove from front to rear through the slot.

[0008] Furthermore, a row of the first terminals includes a plurality of signal terminal pairs and a ground terminal located between two adjacent pairs of signal terminal pairs, and the shielding portion shields above the signal terminal pairs.

[0009] Furthermore, the grounding member also includes a first grounding portion and a second grounding portion respectively connected to the same grounding terminal, the first grounding portion extends to both sides respectively from the two side edges of the front horizontal bar, and the second grounding portion extends forward from the front side edge of the rear horizontal bar.

[0010] Furthermore, the insulator includes a receiving groove for receiving the terminal module, the receiving groove opens rearward at the base and extends forward to the tongue plate, and the grounding piece is inserted into the receiving groove after forming a whole with the terminal module.

[0011] Furthermore, the grounding member is formed into a whole by welding the first and second grounding portions with the corresponding grounding terminals of the first row of terminals.

[0012] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: Step 1: Provide an insulator with a receiving groove, the insulator is provided with a supporting rib protruding into the receiving groove; Step 2: Provide a first terminal module, the first terminal module includes a row of first terminals and an insulating strip for fixing the first terminals; Step 3: Provide a grounding piece, and fix the grounding piece to one side of the module, the grounding piece includes a front horizontal bar, a rear horizontal bar and a plurality of shielding parts located between the front and rear horizontal bars and connecting the two horizontal bars, and at least part of the shielding parts is provided with an avoidance groove, the avoidance groove penetrates the shielding part in the up and down direction and extends forward to penetrate the front horizontal bar; and Step 4: Insert the terminal module fixed with the grounding piece into the receiving groove from back to front, and allow the supporting rib to be accommodated in the avoidance groove.

[0013] Furthermore, the front end of the insulator is provided with a slot connected to the avoidance groove. After step 4, the connector is inserted from the slot into the avoidance groove from front to back so that the connector is electrically connected to the two side edges of the avoidance groove.

[0014] Furthermore, the insulator includes a base and a tongue plate extending forward from the base, the receiving groove passes through the base backward and extends forward to the tongue plate, the first terminal is arranged on the lower side of the tongue plate, and the electrical connector also includes second terminals arranged in a row, and the second terminals are arranged on the upper side of the tongue plate.

[0015] Compared with the prior art, the tongue plate of the electrical connector of the present invention is provided with supporting ribs, which can effectively enhance the strength of the tongue plate.

Brief Description of the Drawings

[0016] Figure 1It is a three-dimensional schematic diagram of the practical electric connector.

[0017] Figure 2 yes Figure 1 Another perspective view of the CEC connector.

[0018] Figure 3 yes Figure 1 Another perspective view of the CEC connector.

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

[0020] Figure 5 yes Figure 1 Another exploded view of the CEC connector.

[0021] Figure 6 yes Figure 4 Another angle of the three-dimensional exploded view of the CEC connector.

[0022] Figure 7 It is a three-dimensional exploded view of the connecting member and the grounding member when they are separated from the first terminal module.

[0023] Figure 8 yes Figure 7 Another angle of the three-dimensional exploded view.

[0024] Fig. 9 It is a three-dimensional diagram when the first terminal module is separated from the insulator.

[0025] Fig.10 yes Figure 7 A three-dimensional view of the middle grounding member installed on the first end module, wherein the connecting member is not inserted into the avoidance groove of the grounding member.

[0026] Fig.11 yes Fig.10 A three-dimensional view of the middle connecting piece after it is inserted into the avoidance groove.

[0027] Fig.12 Figure 1 Cross-sectional view of the CEC connector along line AA.

[0028]

Component Symbol Description

[0029] Electrical connector 100 Ground terminal 21G

[0030] Insulator 10 First terminal module 210

[0031] Base 11 Second terminal 22

[0032] Tongue plate 12 Insulation strip 30

[0033] Slot 121 Grounding piece 40

[0034] Key 122 Front bar 41

[0035] Support rib 14 Rear horizontal bar 42

[0036] Accommodating groove 15 Shielding portion 43

[0037] Terminal 20 Avoidance slot 44

[0038] Contact portion 202 First ground portion 45

[0039] Lower extension portion 204 Second grounding portion 46

[0040] Horizontal part 205 Connecting member 50

[0041] First terminal 21 Main body 51

[0042] Signal terminal pair 21S Elastic arm 52

[0043] The following specific implementation manner will further illustrate the present invention in conjunction with the above-mentioned drawings. [Specific implementation method]

[0044] 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.

[0045] See also Figure 1-2 As shown, the electrical connector 100 of the present invention is a plug connector, which is mated with a socket connector (not shown in the figure) to transmit high-frequency signals. In the present embodiment, the plug connector 100 and the socket connector adopt the SFF-8639 transmission interface, which is applicable to the latest generation PCIe5.0 transmission protocol, supports signal transmission rates above 32GT / s, and the transmission bandwidth can even reach 128GB / s. The electrical connector 100 includes an insulator 10 and two rows of terminals 20. The insulator 10 includes a base 11 extending in the transverse direction and a tongue plate 12 extending forward from the base. The terminals 20 include a row of first terminals 21 arranged on the lower side of the tongue plate 12 and a row of second terminals 22 arranged on the upper side of the tongue plate. Figure 3 In this embodiment, a convex key 122 is provided on the upper surface of the tongue plate 12, and the second terminal 22 is respectively disposed on the convex key 122 and the upper surface of the tongue plate 12 on both sides of the convex key 122. In addition, the terminal 20 includes a retaining portion (not shown) fixed in the base 11, a contact portion 202 extending forward from the base 11 and exposed on the surface of the tongue plate 12, and a pin extending backward from the base 11 out of the rear end of the base 11, and the pin includes a lower extension portion 204 extending downward from the retaining portion and a horizontal portion 205 extending from the lower extension portion 204 in the horizontal direction. Figure 4-8A row of first terminals 21 are fixed by an insulating strip 30 to form a first terminal module 210. The first terminals 21 include a plurality of signal terminal pairs 21S and a grounding terminal 21G located between two adjacent signal terminal pairs 21S to isolate the signal terminal pairs 21S. The electrical connector 100 also includes a grounding member 40 located in the tongue plate 12 and fixed to the side of the first terminal module 210 close to the second terminal 22. The grounding member 40 includes a front horizontal bar 41 and a rear horizontal bar 42 arranged in parallel, and a plurality of shielding portions 43 located between and connecting the front and rear horizontal bars 41 and 42. The shielding portion 43 shields the top of the signal terminal pairs 21S. At least a portion of the shielding portion 43 is provided with an avoidance groove 44. The avoidance groove 44 penetrates the shielding portion 43 in the up-down direction and extends forward to penetrate the front horizontal bar 41. In this embodiment, preferably, the rear horizontal bar 42 is supported directly above the insulator bar 30 so that the grounding member 40 can be stably fixed to the first terminal module 210 .

[0046] Combination Fig.12 , the insulator 10 is provided with support ribs 14, and the support ribs 14 protrude into the avoidance groove 44 along the up-down direction. In this way, the insulator 10 does not need to hollow out the entire receiving space for receiving the grounding member 40, but some support ribs 14 can be provided in the receiving space to enhance the strength of the insulator 10. In addition, since the avoidance groove 44 is provided on the shielding portion 43 of the grounding member 40, after the grounding member 40 is installed to the insulator 10 from the back to the front, the support ribs 14 are received in the opening of the front end of the avoidance groove 44 and are received in the avoidance groove 44. In this way, the installation of the grounding member 40 is not affected, and the strength of the insulator 10 is not reduced due to the presence of the grounding member 40.

[0047] Continue to see Figure 4-8 as well as Figure 10-11 The avoidance groove 44 is U-shaped, and the electrical connector 100 further includes a connector 50 plugged into the front end of the avoidance groove 44. The front end of the tongue plate 12 is provided with a slot 121 connected to the avoidance groove 44, and the connector 50 is inserted into the avoidance groove 44 from the front to the back through the slot 121. Figure 10-11The connecting member 50 includes a main body 51 and two elastic arms 52 extending from the main body 51. The two elastic arms 52 are electrically connected to the two side edges of the avoidance groove 44 to electrically connect to the front horizontal bar 41 in the transverse direction. Preferably, the two elastic arms 52 are arc-shaped and protrude outward. The arc-shaped structure not only guides the connecting member 50 when it is inserted into the avoidance groove 44, but also enables the two elastic arms 52 to be well electrically connected to the two side edges of the avoidance groove 44. The grounding member 40 also includes a first grounding portion 45 and a second grounding portion 46 connected to the same grounding terminal 21G. The first grounding portions 45 extend to both sides from the two side edges of the front horizontal bar 41, that is, one of the first grounding portions 45 extends forward from the front side edge of the front horizontal bar 41, and the other first grounding portion 45 extends backward from the rear side edge of the front horizontal bar 41; the second grounding portion 46 extends forward from the front side edge of the rear horizontal bar 42.

[0048] In this embodiment, the insulator 10 includes a receiving groove 15 for accommodating the terminal module, which opens rearward at the base 11 and extends forward to the tongue plate 12, wherein the grounding member 40 is inserted into the receiving groove 15 after forming a whole with the first terminal module 210. Preferably, the grounding member 40 is formed as a whole by welding the first and second grounding portions 45 and 46 with the corresponding grounding terminals 21G of a row of first terminals 21. The specific installation method is as follows: Step 1: Provide an insulator 10 with a receiving groove 15, and the insulator 10 is provided with a supporting rib 14 protruding into the receiving groove 15; Step 2: Provide a first terminal module 210, the first terminal module 210 includes a row of first terminals 21 and an insulating strip 30 fixing the first terminal 21; Step 3: Provide a grounding member 40, and fix the grounding member 40 to one side of the first terminal module 210, the grounding member 40 includes a front horizontal bar 41, a rear horizontal bar 42 and a plurality of shielding portions 43 located between the front and rear horizontal bars 41, 42 and connecting the two horizontal bars, and at least part of the shielding portion 43 is provided with an avoidance groove 44, the avoidance groove 44 penetrates the shielding portion 43 in the up and down direction and extends forward to penetrate the front horizontal bar 41; and Step 4: Insert the terminal first terminal module 210 fixed with the grounding member 40 from back to front into the receiving groove 15, and allow the supporting rib 14 to be accommodated in the avoidance groove 44. After step 4, the connecting member 50 is inserted into the avoiding groove 44 from the front to the back through the slot 121 , so that the connecting member 50 is electrically connected to the two side edges of the avoiding groove 44 .

[0049] See also Figure 3 and Fig. 9In this embodiment, since the lower extension portion 204 and the horizontal portion 205 of the second terminal 22 are located behind the lower extension portion 204 and the horizontal portion 205 of the first terminal 21, when the second terminal 22 is installed into the insulator 10 first, the first terminal module 210 will be blocked by the lower extension portion 204 and the horizontal portion 205 of the second terminal 22 when it is assembled from back to front to the receiving groove 15. Therefore, when the product is assembled, the second terminal 22 can be assembled after the above-mentioned step 4.

[0050] 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 and two rows of terminals, the insulator comprising a longitudinal base and a tongue extending forward from the base, the terminals comprising a row of first terminals arranged on the lower side of the tongue and a row of second terminals arranged on the upper side of the tongue, the row of first terminals being fixed by an insulating strip to form a first terminal module; the electrical connector further comprising a grounding member located in the tongue and fixed to a side of the first terminal module close to the second terminal, the grounding member comprising a front horizontal bar and a rear horizontal bar arranged in parallel, and a plurality of shielding portions located between the front and rear horizontal bars and connecting the front and rear horizontal bars; characterized in that: At least part of the shielding portion is provided with an avoidance groove, the avoidance groove penetrates the shielding portion in the up-down direction and extends forward to penetrate the front horizontal bar, and the insulator is provided with a support rib, and the support rib protrudes into the avoidance groove.

2. The electrical connector according to claim 1, wherein: The avoidance groove is U-shaped, and the electrical connector also includes a connecting piece plugged into the front end of the avoidance groove. The connecting piece includes a main body and two elastic arms extending from the main body. The two elastic arms are respectively electrically connected to the two side edges of the avoidance groove to electrically connect the front horizontal bar.

3. The electrical connector according to claim 2, wherein: A slot communicating with the avoidance groove is provided at the front end of the tongue plate, and the connecting member is inserted into the avoidance groove from front to rear through the slot.

4. The electrical connector according to claim 1, wherein: A row of the first terminals includes a plurality of signal terminal pairs and a ground terminal located between two adjacent pairs of signal terminal pairs, and the shielding portion shields above the signal terminal pairs.

5. The electrical connector according to claim 4, wherein: The grounding member also includes a first grounding portion and a second grounding portion respectively connected to the same grounding terminal, the first grounding portion respectively extends to both sides from both side edges of the front horizontal bar, and the second grounding portion extends forward from the front side edge of the rear horizontal bar.

6. The electrical connector according to claim 5, wherein: The insulator comprises a receiving groove for receiving the first terminal module, the receiving groove opens rearward at the base and extends forward to the tongue plate, and the grounding piece is inserted into the receiving groove after forming a whole with the first terminal module.

7. The electrical connector according to claim 5, wherein: The grounding member is formed into a whole by welding the first and second grounding portions with the corresponding grounding terminals of the first row of terminals.

8. A method for assembling an electrical connector, characterized in that: Step 1: providing an insulator having a receiving groove, wherein the insulator is provided with a supporting rib protruding into the receiving groove; Step 2: providing a first terminal module, wherein the first terminal module comprises a row of first terminals and an insulating strip for fixing the first terminals; Step 3: providing a grounding member and fixing the grounding member to one side of the module, wherein the grounding member comprises a front horizontal bar, a rear horizontal bar, and a plurality of shielding portions located between the front horizontal bar and the rear horizontal bar and connecting the two horizontal bars, and at least a portion of the shielding portions is provided with an avoidance groove, wherein the avoidance groove penetrates the shielding portion in the up-down direction and extends forward to penetrate the front horizontal bar; And step 4: insert the first terminal module fixed with the grounding member into the receiving groove from back to front, and make the supporting rib be received in the avoiding groove.

9. The method for assembling an electrical connector according to claim 8, wherein: The front end of the insulator is provided with a slot connected to the avoidance groove. After step 4, the connector is inserted from the slot into the avoidance groove from front to back so that the connector is electrically connected to the two side edges of the avoidance groove.

10. The method for assembling an electrical connector according to claim 8, wherein: The insulator includes a base and a tongue plate extending forward from the base, the receiving groove passes through the base backward and extends forward to the tongue plate, the first terminal is arranged on the lower side of the tongue plate, and the electrical connector also includes second terminals arranged in a row, and the second terminals are arranged on the upper side of the tongue plate.

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