Electrical connector

Abstract

The utility model discloses an electric connector includes: shielding body, multi -row terminal module, it is housed in shielding body correspondingly, every terminal module includes an insulating block and the signal terminal fixed in insulating block, and the insulating block has the convex part that projects to the upper surface of shielding body upwards, is used for supporting the upper butt -joint element upwards, and the signal terminal has the butt -joint part, is used for the upper butt -joint element upwards and abuts against, fixed on the upper surface of shielding body's multiple ground pieces, and multiple ground pieces include along the multiple first elastic arms of extending in front -back direction and along the multiple second elastic arms of extending in left -right direction, and the first elastic arm and second elastic arm are surrounded in the four around of corresponding insulating block, thereby improve the crosstalk between signal terminal, and the first elastic arm and second elastic arm have contact part for the upper butt -joint element upwards and abut against respectively, through the ground piece is arranged on the surface of shielding plate and is used as ground terminal, so can shorten the distance between signal terminal, and the convex part can protect the first elastic arm and second elastic arm from being damaged by foreign matter.

Description

[Technical Field]

[0001] This utility model relates to an electrical connector, and more particularly to an electrical connector that improves high-frequency performance. [Background Technology]

[0002] A typical electrical connector has an insulating body, multiple signal terminals, and multiple ground terminals for contacting mating components. The insulating body has multiple receiving slots, in which the signal terminals and ground terminals are respectively housed and arranged side by side. The structures of the signal terminals and ground terminals are roughly the same. However, since the ground terminals also occupy receiving slots and thus space, the distance between the signal terminals located on opposite sides of the ground terminals increases, which is not conducive to the compact design of electrical connectors. [Utility Model Content]

[0003] The purpose of this invention is to provide a space-saving electrical connector that saves on the grounding terminal and improves high-frequency electrical connectors.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An electrical connector includes: a shield; multiple rows of terminal modules correspondingly housed within the shield, each terminal module including an insulating block and a signal terminal fixed to the insulating block, the insulating block having a protrusion extending upward beyond the upper surface of the shield for supporting an upper mating element, the signal terminal having a mating portion for abutting against the upper mating element upward; and multiple grounding members fixed to the upper surface of the shield, the multiple grounding members including multiple first spring arms extending in a front-back direction and multiple second spring arms extending in a left-right direction, the first spring arms and second spring arms surrounding the corresponding insulating block, the first spring arms and second spring arms each having a contact portion for abutting against the upper mating element upward.

[0006] Furthermore, each signal terminal has a solder portion extending from a plastic plate for soldering to a lower mating element; a plastic plate is located on the lower surface of the shield, and the plastic plate is integrally connected with multiple insulating blocks; multiple solders are contained in the plastic plate and surround the solder portion, and each solder solders the shield to the lower mating element, wherein the solder located between two adjacent solder portions is equidistant from the two adjacent solder portions.

[0007] Furthermore, the shield is formed by injection molding of metal powder, and there are multiple shields in the vertical direction; the shield has a receiving groove corresponding to the receiving terminal module, the receiving groove penetrates the shield vertically and is formed by stamping after the shield is injection molded.

[0008] Furthermore, each row of terminal modules is arranged side by side in the front-to-back direction; the signal terminals of two adjacent rows of terminal modules are staggered, and their mating parts face opposite directions in the front-to-back direction.

[0009] Furthermore, the signal terminal has a fixing part fixed to the insulating block; for one of the terminal modules and the adjacent two end sub-modules that are opposite each other to the left and right, the fixing part of the terminal module and the fixing part of the adjacent terminal module are arranged in a row in the left and right direction, and the mating part of the terminal module and the mating part of the adjacent terminal module are arranged in a row in the left and right direction.

[0010] Furthermore, the grounding component is fixed to the shield by laser welding. After the grounding component is laser welded to the shield, insulating material is injected into the shield to form an insulating block.

[0011] Furthermore, the protrusion abuts downward against the shield; when the upper docking element abuts against the docking part, the docking part is located inside the protrusion, and the front, back, left and right sides of the protrusion surround the corresponding docking part.

[0012] Furthermore, the projection of the two second spring arms located between the docking parts of the front and rear end sub-modules in the front-rear direction shows that part of the gap between one second spring arm and the shield is shielded by the other second spring arm.

[0013] Furthermore, the contact portion and docking portion of the second spring arm are aligned in the front-to-back direction.

[0014] Furthermore, the signal terminals fixed to the insulating block are a pair of differential signal terminals. The electrical connector also includes at least two plastic strips housed in the shield and located on one side of the multi-row terminal module in the front-back direction. The plastic strips house a row of single-ended signal terminals arranged side by side. In the front-back direction, the distance between two adjacent plastic strips is equal to the distance between the two insulating blocks of the two adjacent end sub-modules in the front and back directions. Each single-ended signal terminal has an extension extending toward the terminal module for abutting the upper mating element upward.

[0015] Furthermore, for the two grounding components located on the left and right sides of a terminal module, from a top view they are L-shaped and each has an integrally connected first spring arm and a second spring arm, wherein the two first spring arms extend in the same direction and are symmetrically arranged on the left and right sides of the terminal module; the two second spring arms extend in opposite directions and are located on the same side of the terminal module.

[0016] Furthermore, the two first elastic arms located on the left and right sides of an insulating block and closest to the insulating block have equal distances between their contact portions and corresponding mating portions.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] By placing the grounding component on the surface of the shield as a grounding terminal, the grounding terminal does not need to occupy a receiving slot as in the prior art, thus shortening the distance between signal terminals and facilitating the dense design of electrical connectors; the first and second spring arms are arranged around the corresponding insulating blocks, thereby improving crosstalk between signal terminals; at the same time, the insulating block has a protrusion that protrudes upward from the upper surface of the shield, so the protrusion can resist the impact of external objects on the first and second spring arms to protect the first and second spring arms from being damaged by external objects. [Attached Image Description]

[0019] Figure 1 This is an exploded perspective view of the electrical connector according to the first embodiment of this utility model;

[0020] Figure 2 This is a partial top view of the electrical connector according to the first embodiment of the present invention;

[0021] Figure 3 for Figure 2 A cross-sectional view of the electrical connector along the AA direction after it has come into contact with the upper and lower mating components;

[0022] Figure 4 for Figure 2 A cross-sectional view of the electrical connector along the BB direction after it has come into contact with the upper and lower mating components;

[0023] Figure 5 This is a perspective view of the electrical connector according to the first embodiment of the present invention.

[0024] Figure 6 This is an exploded perspective view of the electrical connector according to the second embodiment of this utility model;

[0025] Figure 7 This is a perspective view of the electrical connector according to the second embodiment of the present invention.

[0026] Figure 8 This is a partial bottom view of the electrical connector according to the second embodiment of the present invention;

[0027] Figure 9 for Figure 6 Enlarged view of point C in the middle;

[0028] Figure 10 This is a cross-sectional view of the electrical connector of the second embodiment of the present invention after it has come into contact with the upper and lower mating elements;

[0029] Figure 11 This is an exploded perspective view of the electrical connector according to the third embodiment of this utility model;

[0030] Figure 12 This is a perspective view of the electrical connector according to the third embodiment of the present invention.

[0031] Figure 13 This is a partial top view of the electrical connector according to the third embodiment of the present invention;

[0032] Figure 14 This is a partial bottom view of the electrical connector according to the third embodiment of the present invention;

[0033] Figure 15 for Figure 13 A cross-sectional view of the electrical connector along the DD direction after it comes into contact with the upper and lower mating components.

[0034] Explanation of reference numerals in the accompanying drawings for the specific implementation methods:

[0035] Grounding component 2 Plastic strip 3 Single-ended signal terminal 4 Containment Slot 11 Insulating block 5 Differential signal terminal 6 Protrusion 51 Side K Upper limit plane 511 Lower limit plane 512 Fixing part 61 Docking section 62 First Bomb Arm 21 Second missile arm 22 Base 23 Extension 41 Through hole 12 54 Welding part 63 Plastic sheet 7 Solder 8 Contact Q Avoidance slot 31 Conductor 42 Anti-fouling groove 13

Detailed Implementation Methods

[0036] To facilitate a better understanding of the purpose, structure, features, and effects of this utility model, the present utility model will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0037] For the sake of accuracy, all directions mentioned in this article are defined as follows: the X-axis extends in the front-back direction (with the positive X-axis direction being front), the Y-axis extends in the left-right direction (with the positive Y-axis direction being right), and the Z-axis extends in the up-down direction (with the positive Z-axis direction being up).

[0038] like Figures 1-5 As shown, the electrical connector 100 of the first embodiment of this utility model is used to electrically connect an upper mating element 200 and a lower mating element (not labeled, the same below) respectively. The electrical connector 100 includes a shield 1, multiple rows of terminal modules H housed in the shield 1, multiple grounding elements 2 surrounding the terminal modules H, at least two plastic strips 3 housed in the shield 1 (in this embodiment there are two plastic strips 3, but in other embodiments there may be more than two), and multiple single-ended signal terminals 4 housed in the plastic strips 3. In this embodiment, the electrical connector 100 is arranged symmetrically vertically.

[0039] like Figure 1 As shown, the shield 1 is formed by injection molding of metal powder (of course, in other embodiments, it is not limited to this material; it can also be made of zinc alloy, or the shield 1 can be formed by electroplating a conductive layer on a plastic body). In this embodiment, there are three shield 1s. Of course, in other embodiments, one or more can be set according to the actual situation. The three shield 1s are stacked and aligned in the vertical direction. Two adjacent shield 1s are fixed together by welding or other means. Each shield 1 has a plurality of receiving slots 11 that correspond to the terminal module H. The receiving slots 11 penetrate the shield 1 vertically and are formed by stamping after the shield 1 is injection molded.

[0040] like Figure 1 , Figure 2 As shown, each row of terminal modules H is arranged side by side in the front-to-back direction. Each terminal module H includes an insulating block 5 and a signal terminal fixed to the insulating block 5. In this embodiment, the signal terminal fixed to the insulating block 5 is a pair of differential signal terminals 6 (of course, in other embodiments, the signal terminal fixed to the insulating block 5 can also be a single-ended signal terminal). Each insulating block 5 has a protrusion 51 that protrudes upward from the upper surface of the shield 1. The protrusion 51 has front, rear, left, and right side faces K located outside the receiving groove 11. Each insulating block 5 has an upper limit surface 511 and a lower limit surface 512 on its left and right sides that are opposite each other (of course, in other embodiments, the upper limit surface 511 and the lower limit surface 512 can also be provided on only one side of the left and right sides of the corresponding insulating block 5, or the upper limit surface 511 and the lower limit surface 512 can also be provided on the front and / or rear sides of the corresponding insulating block 5). Figure 3 As shown, in this embodiment, the upper limit surface 511 is disposed on the protrusion 51, and the upper limit surface 511 abuts against the upper surface of the uppermost shield 1, and the lower limit surface 512 abuts against the lower surface of the lowermost shield 1 (of course, in other embodiments, the protrusion 51 may not abut against the corresponding shield 1 downwards; or the insulating block 5 may not abut against the corresponding shield 1 upwards); each differential signal terminal 6 has a fixing part 61 for fixing to the insulating block 5 and a docking part 62 located above the fixing part 61. The docking part 62 is used to abut against the upper docking element 200 upwards. When the upper docking element 200 abuts against the docking part 62, the docking part 62 is positioned... Within the protrusion 51, and with the front, rear, left, and right sides of the protrusion 51 surrounding the corresponding docking portion 62, i.e., the docking portion 62 does not protrude from the protrusion 51, the medium surrounding the docking portion 62 is an insulating material; for one of the terminal modules H and its adjacent two end sub-modules H that are partially opposite to each other on the left and right, the fixing portion 61 of the terminal module H and the fixing portion 61 of the adjacent terminal module H are arranged in a row in the left and right direction, and the docking portion 62 of the terminal module H and the docking portion 62 of the adjacent terminal module H are arranged in a row in the left and right direction, and the differential signal terminals 6 of the two adjacent rows of terminal modules H are staggered, and their docking portions 62 face opposite directions in the front and back directions.

[0041] like Figure 1 , Figure 2 , Figure 5As shown, in this embodiment, grounding components 2 are fixed on the upper surface of the uppermost shield 1 and the lower surface of the lowermost shield 1. Of course, grounding components 2 can also be provided only on the upper surface of the uppermost shield 1. In addition to the grounding component 2 located between the plastic strip 3 and the differential signal terminal 6 closest to the plastic strip 3, each grounding component 2 is L-shaped in top view and has a first elastic arm 21 and a second elastic arm 22 integrally connected. The first elastic arm 21 extends in the front-back direction and the second elastic arm 22 extends in the left-right direction (in this embodiment, the first elastic arm 21 and the second elastic arm 22 are the same in other structures except for the different extension directions). The first elastic arm 21 and the second elastic arm 22 surround the corresponding insulating block 5. The first elastic arm 21 and the second elastic arm 22 each have a contact portion Q. The upper contact portion Q is used to abut against the upper docking element 200, and the lower contact portion Q is used to abut against the lower docking element. In this embodiment, the base 23 of the grounding component 2 is fixed to the shield 1 by laser welding (of course, in other embodiments, the fixing method is not limited to laser welding). After the grounding component 2 is laser welded to the shield 1, insulating material is injected into the receiving groove 11 of the shield 1 to form an insulating block 5.

[0042] like Figure 2 As shown, for two grounding components 2 located on the left and right sides of a terminal module H, the two first spring arms 21 extend in the same direction and are located on the left and right sides of the docking portion 62 of the terminal module H. The distances from the two first spring arms 21 to the corresponding docking portions 62 of the terminal module H are the same (i.e., the two first spring arms 21 are symmetrically arranged on the left and right sides of the terminal module H), and the free ends of the first spring arms 21 abut against the shield 1 (thus forming multiple grounding conductive paths to achieve common ground; of course, in other embodiments, the free ends of the first spring arms 21 may not abut against the shield 1); as Figure 2 , Figure 4 As shown, the contact portion Q of the second spring arm 22 is aligned with the docking portion 62 in the front-to-back direction. The two second spring arms 22 extend in opposite directions and are located on the same side of the terminal module H. The free end of the second spring arm 22 abuts against the shield 1 (of course, in other embodiments, the free end of the second spring arm 22 may not abut against the shield 1). The projection along the front-to-back direction is as follows: Figure 3 As shown, a portion of the gap between one of the second spring arms 22 and the shield 1 is shielded by another second spring arm 22.

[0043] like Figure 1 , Figure 2As shown, the two plastic strips 3 are located on one side of the multi-row terminal module H in the front-back direction (in this embodiment, if the direction in which the extension 41 extends toward the terminal module H is defined as forward, then the two plastic strips 3 are located behind the multi-row terminal module H). In the front-back direction, the distance between two adjacent plastic strips 3 is equal to the distance between the two insulating blocks 5 of the two adjacent terminal modules H in the front and back directions. Each plastic strip 3 contains a row of single-ended signal terminals 4 arranged side by side in the left-right direction. Each single-ended signal terminal 4 has an extension 41 extending toward the terminal module H for abutting the upper docking element 200 upward. The extension direction of the extension 41 is opposite to the extension direction of the first spring arm 21.

[0044] The manufacturing method of this utility model electrical connector is as follows:

[0045] First, the three shielding bodies 1 are stacked and then fixed together by welding or other means;

[0046] Secondly, the grounding component 2 is welded to the upper surface of the uppermost shield 1 and the lower surface of the lowermost shield 1 by laser welding.

[0047] Then, insulating blocks 5 and plastic strips 3 are formed by injecting insulating material into the shield 1;

[0048] Finally, the differential signal terminal 6 is assembled to the insulating block 5, and the single-ended signal terminal 4 is assembled to the plastic strip 3.

[0049] Of course, in other embodiments, insulating blocks 5 and plastic strips 3 can be formed by injecting insulating material into the shield 1 first, and then the grounding component 2 can be welded to the upper surface of the uppermost shield 1 and the lower surface of the lowermost shield 1 respectively.

[0050] like Figures 6-10 As shown, this is the electrical connector 100 of the second embodiment of the present invention. The difference between this connector and the first embodiment is that: there are five shielding bodies 1, each shielding body 1 having a through hole 12 that extends vertically and is aligned vertically, used for positioning with the positioning post (not shown, the same below) of the lower mating element. The receiving groove 11 of the lowest shielding body 1 is smaller than the receiving grooves 11 of the other shielding bodies 1 (e.g., ...). Figure 10 This ensures that the projection of the solder 8 around the solder joint 63 of the differential signal terminals 6 in the vertical direction does not overlap with the insulating block 5, preventing the solder 8 from fusing together with the insulating block 5 and affecting the poor welding of the solder 8 to the shield 1; the grounding component 2 is only welded to the upper surface of the uppermost shield 1; as Figure 9As shown, each pair of differential signal terminals 6 has an insulating block 5 with a recessed groove 54 on its left and right sides to facilitate the insertion of the ejector pin (not shown, the same below) when the differential signal terminal 6 is inserted, thereby pressing the differential signal terminal 6 into the insulating block 5 through the ejector pin; each differential signal terminal 6 has a welding part 63 located below the fixing part 61, used to weld the differential signal terminal 6 to the lower mating element; as Figure 7 As shown, the electrical connector 100 also includes a plastic plate 7, disposed on the lower surface of the bottommost shield 1. The soldering part 63 extends out of the plastic plate 7, and the plastic plate 7 is integrally connected to multiple insulating blocks 5 (such as...). Figure 10 Therefore, during production, the plastic plate 7 and multiple insulating blocks 5 are injection molded together on the shield 1, reducing production steps and eliminating the need for a fixed structure to fix the plastic plate 7. Multiple solders 8 are housed within the plastic plate 7 and surround the two soldering portions 63 of a pair of differential signal terminals 6 (in this embodiment, the solders 8 are arranged in a roughly circular pattern around the two soldering portions 63 of the pair of differential signal terminals 6; however, this is not limited to other embodiments). The multiple solders 8 are used to solder the electrical connector 100 to the lower mating element, wherein the distance from the solder 8 between two adjacent soldering portions 63 to the distance between the two adjacent soldering portions 63 is equal (e.g., ...). Figure 8 As shown, L1 = L2), to prevent solder bridging between the solder 8 and the soldering part 63 during soldering, and to avoid short circuit between the differential signal terminal 6 and the shield 1; the extension 41 of each single-ended signal terminal 4 extends backward first, and then bends forward to extend, and the structure of the extension 41 is roughly the same as that of the mating part 62. The other structures of the electrical connector 100 of the second embodiment of this utility model are the same as those of the first embodiment, so they will not be described again.

[0051] like Figures 11-15 The diagram shows the electrical connector 100 of the third embodiment of this utility model, which differs from the second embodiment in that: there are four shielding bodies 1, each shielding body 1 has a recessed anti-fooling groove 13 on one side, and when each shielding body 1 is stacked, the anti-fooling grooves 13 are aligned one-to-one in the vertical direction to prevent the electrical connector 100 from being incorrectly installed on the frame (not shown, the same below); there are eight plastic strips 3, with four plastic strips 3 in each row, and each plastic strip 3 contains four single-ended signal terminals 4. Each plastic strip 3 has a relief groove 31 on the left and right sides of each single-ended signal terminal 4 for inserting a pin to press the single-ended signal terminal 4 into the plastic strip 3; each single-ended signal terminal 4 also has a guide portion 42 extending out of the plastic plate 7 for welding to the lower mating element, and the guide portion 42 is located below the extension portion 41; the plastic plate 7 is integrally connected to multiple insulating blocks 5 and multiple plastic strips 3 (e.g. Figure 12 , Figure 15Therefore, during production, the plastic plate 7, along with multiple insulating blocks 5 and multiple plastic strips 3, are injection molded together onto the shielding body 1, reducing production steps and eliminating the need for a separate fixing structure to secure the plastic plate 7. The terminal modules H in two adjacent rows are aligned along the left-right direction, and each mating part 62 extends in the same direction. In this embodiment, each mating part 62 and the extension part 41 extend in the same direction; however, in other embodiments, the mating part 62 and the extension part 41 may extend in opposite directions. Figure 11 , Figure 13 As shown, the grounding component 2 is a single piece; the first elastic arm 21 is parallel to the side edge of the insulating block 5 near its side edge, and the opposite side edge of the first elastic arm 21 is oblique, so that the width of the free end of the first elastic arm 21 to its corresponding base 23 gradually increases. At the same time, the two adjacent first elastic arms 21 extend in opposite directions in the front-back direction. Therefore, compared with the design of the first elastic arms 21 extending in the same direction, the elasticity requirement of the first elastic arm 21 can be met while reducing the distance between the two adjacent first elastic arms 21. The second elastic arm 22 is parallel to the side edge of the insulating block 5 near its side edge, and the opposite side edge of the second elastic arm 22 is oblique, so that the width of the free end of the second elastic arm 22 to its corresponding base 23 gradually increases. At the same time, the two adjacent second elastic arms 22 extend in opposite directions in the front-back direction. Figure 14 As shown, the solder 8 is arranged in a roughly rectangular pattern around the soldering portion 63 of a pair of differential signal terminals 6. The other structures of the electrical connector 100 in the third embodiment of this utility model are the same as those in the second embodiment, and therefore will not be described again.

[0052] In summary, this utility model has the following beneficial effects:

[0053] 1. By placing the grounding component 2 on the surface of the shield 1 as a grounding terminal, the grounding terminal does not need to occupy the receiving slot 11 as in the prior art, thus shortening the distance between signal terminals and facilitating the compact design of the electrical connector 100; at the same time, the insulating block 5 has a protrusion 51 that protrudes upward from the upper surface of the shield 1. If an external object hits the upper surface of the electrical connector, the protrusion 51 can protect the first spring arm 21 and the second spring arm 22 from being damaged by the external object.

[0054] 2. The shield 1 is formed by injection molding of metal powder and then stamping to form the receiving groove 11. Compared with the shield 1 being directly formed into the receiving groove 11 during the injection molding of metal powder, the impact of shrinkage of the size of the receiving groove 11 can be reduced. At the same time, the shield 1 is divided into multiple parts, so when stamping to form the receiving groove 11, the punch is not damaged due to the shield 1 being too thick.

[0055] 3. The fixing part 61 of the terminal module H is arranged in a row with the fixing part 61 of an adjacent terminal module H in the left-right direction, and the docking part 62 of the terminal module H is arranged in a row with the docking part 62 of another adjacent terminal module H in the left-right direction. At the same time, the differential signal terminals 6 of the two adjacent rows of terminal modules H are staggered and their docking parts 62 face opposite directions. Therefore, the facing area of ​​the two adjacent pairs of differential signal terminals 6 is reduced, thereby reducing the crosstalk between the two adjacent pairs of differential signal terminals 6.

[0056] 4. The two first spring arms 21 located on the left and right sides of an insulating block 5 and closest to the insulating block 5 have equal distances between their contact parts Q and their corresponding mating parts 62, which helps to improve crosstalk. When the signal terminals fixed to the insulating block 5 are a pair of differential signal terminals 6, the two mating parts 62 are affected by the magnetic field of their corresponding first spring arms 21 in the same way. Therefore, when the noise waveforms received by the differential signal terminals 6 are coupled (subtracted) at the receiving end, the noise received by the first spring arms 21 in the differential signal terminals is reduced, and the crosstalk interference is weaker, thus improving the transmission of differential signals.

[0057] The above detailed description is only a description of the preferred embodiment of this utility model and is not intended to limit the patent scope of this utility model. Therefore, all equivalent technical changes made using the content of this invention's specification and illustrations are included within the patent scope of this invention.

Claims

1. An electrical connector, characterized in that, include: Shielding body; A multi-row terminal module is housed in a shield. Each terminal module includes an insulating block and a signal terminal fixed to the insulating block. The insulating block has a protrusion that protrudes upward from the upper surface of the shield for supporting the upper docking element. The signal terminal has a docking part for abutting against the upper docking element. Multiple grounding components are fixed to the upper surface of the shield. Each grounding component includes multiple first elastic arms extending in the front-back direction and multiple second elastic arms extending in the left-right direction. The first elastic arms and second elastic arms surround the corresponding insulating block. Each first elastic arm and second elastic arm has a contact portion for abutting against the upper docking element.

2. The electrical connector as described in claim 1, characterized in that: Each signal terminal has a solder part extending from a plastic plate for soldering to a lower mating element; a plastic plate is located on the lower surface of the shield and is integrally connected with multiple insulating blocks; multiple solders are contained in the plastic plate and surround the solder part, each solder soldering the shield to the lower mating element, wherein the solder located between two adjacent solder parts is equidistant from the two adjacent solder parts.

3. The electrical connector as described in claim 1, characterized in that: The shield is formed by injection molding of metal powder, and there are multiple shields in the vertical direction; the shield has a receiving groove corresponding to the receiving terminal module, the receiving groove runs through the shield from top to bottom and is formed by stamping after the shield is injection molded.

4. The electrical connector as described in claim 1, characterized in that: Each row of terminal modules is arranged side by side in the front-to-back direction; the signal terminals of two adjacent rows of terminal modules are staggered, and their mating parts face opposite directions in the front-to-back direction.

5. The electrical connector as described in claim 4, characterized in that: The signal terminal has a fixing part fixed to the insulating block; for one terminal module and its adjacent two end sub-modules that are opposite each other on the left and right, the fixing part of the terminal module and the fixing part of the adjacent terminal module are arranged in a row in the left and right direction, and the mating part of the terminal module and the mating part of the adjacent terminal module are arranged in a row in the left and right direction.

6. The electrical connector as claimed in claim 1, characterized in that: The grounding component is fixed to the shield by laser welding. After the grounding component is laser welded to the shield, insulating material is injected into the shield to form an insulating block.

7. The electrical connector as claimed in claim 1, characterized in that: The protrusion abuts downward against the shield; when the upper docking element abuts against the docking part, the docking part is located inside the protrusion, and the front, back, left and right sides of the protrusion surround the corresponding docking part.

8. The electrical connector as claimed in claim 1, characterized in that: The two second spring arms located between the docking parts of the front and rear end sub-modules are projected in the front-rear direction, and part of the gap between one second spring arm and the shield is shielded by the other second spring arm.

9. The electrical connector as claimed in claim 1, characterized in that: The contact part and the docking part of the second spring arm are aligned in the front-to-back direction.

10. The electrical connector as claimed in claim 1, characterized in that: The signal terminals fixed to the insulating block are a pair of differential signal terminals. The electrical connector also includes at least two plastic strips housed in the shield and located on one side of the multi-row terminal module in the front-back direction. The plastic strips house a row of single-ended signal terminals arranged side by side. In the front-back direction, the distance between two adjacent plastic strips is equal to the distance between the two insulating blocks of the two adjacent terminal sub-modules in the front and back directions. Each single-ended signal terminal has an extension extending toward the terminal module for abutting the upper mating element upward.

11. The electrical connector as claimed in claim 1, characterized in that: For two grounding components located on the left and right sides of a terminal module, from a top view they are L-shaped and each has an integrally connected first spring arm and a second spring arm. The two first spring arms extend in the same direction and are symmetrically arranged on the left and right sides of the terminal module; the two second spring arms extend in opposite directions and are located on the same side of the terminal module.

12. The electrical connector as claimed in claim 1, characterized in that: The two first elastic arms located on the left and right sides of an insulating block and closest to the insulating block have equal distances between their contact parts and their corresponding mating parts.

Images