Electric connector

Abstract

The utility model discloses an electric connector, which comprises an insulating body and a plurality of signal terminals accommodated in the insulating body, each signal terminal is provided with a first main body part, and the plurality of signal terminals comprise a plurality of terminal groups with at least one signal terminal; the plurality of shielding sheets are accommodated in the insulating body, each shielding sheet is provided with a second main body part, the plurality of shielding sheets are arranged side by side along the left-right direction, and each shielding sheet extends along the front-back direction; a plurality of grounding buses, a plurality of grounding buses and a plurality of terminal groups, which are arranged in a row at intervals along the front and back direction, are arranged between two left and right adjacent shielding sheets, one grounding bus is arranged between two front and back adjacent terminal groups, and the plurality of grounding buses are conductively connected with the two left and right adjacent shielding sheets; wherein the grounding bus in one column and the first main body parts of the signal terminals in at least one adjacent column are arranged side by side left and right, so that a current backflow path can be shortened, and resonance of the signal terminals can be suppressed.

Description

[Technical field]

[0001] The utility model relates to a connector, in particular to a connector for suppressing resonance of a signal terminal. [Background technology]

[0002] There is an electrical connector, which includes an insulator, multiple signal terminals, multiple first shielding sheets and multiple second shielding sheets; the multiple first shielding sheets are arranged side by side in the left-right direction, and the first shielding sheet has a first flat plate portion arranged vertically, which is bent from the first flat plate portion and then extended forward to form an upper grounding spring sheet for abutting upward against a docking element; the multiple signal terminals are positioned on the insulator, each of the signal terminals has a main body portion and an upper contact portion extending forward from the main body portion, which is used to abut upward against the docking element; the multiple second shielding sheets are arranged side by side in the front-back direction, and the multiple first shielding sheets and the multiple second shielding sheets are vertically embedded with each other to form multiple accommodating spaces to accommodate the multiple signal terminals.

[0003] However, since the signal terminal in the circuit has a strong magnetic field and electric field at its main body, a large resonance is generated, and the plurality of the first shielding sheets and the plurality of the second shielding sheets are vertically embedded with each other to form a plurality of the accommodating spaces corresponding to the signal terminals, the first shielding sheets and the second shielding sheets are vertically embedded, resulting in a longer current return path of the signal terminal, making it impossible to suppress the resonance well.

[0004] Therefore, it is necessary to design a new electrical connector to overcome the above defects. [Summary of the invention]

[0005] The invention aims to provide an electrical connector capable of suppressing resonance of a signal terminal.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An electrical connector comprises: an insulating body having an upper surface and a lower surface disposed opposite to each other;

[0008] A plurality of signal terminals are accommodated in the insulating body, and the signal terminals have a first main body, a first contact arm extending upward from the first main body, and a first conductive arm extending downward from the first main body and exposed on the lower surface, the first contact arm having a first contact portion exposed on the upper surface, the plurality of signal terminals include a plurality of terminal groups, each of the terminal groups includes at least one signal terminal; a plurality of shielding sheets arranged side by side in the left-right direction are accommodated in the insulating body, and the plurality of shielding sheets are arranged side by side in the left-right direction, each of the shielding sheets extends in the front-back direction, each of the shielding sheets has a second main body, a first conductive arm extending downward from the second main body and exposed on the lower surface, the first conductive arm having a first contact portion exposed on the upper surface, the plurality of signal terminals include a plurality of terminal groups, each of the terminal groups includes at least one signal terminal; a plurality of shielding sheets arranged side by side in the left-right direction are accommodated in the insulating body, and the plurality of shielding sheets are arranged side by side in the left-right direction, each of the shielding sheets extends in the front-back direction, each of the shielding sheets has a second main body, a first conductive arm extending downward from the second main body A plurality of second contact arms extending upward from the body and a plurality of second conductive arms extending downward from the second main body and exposed on the lower surface, the second contact arm having a second contact portion exposed on the upper surface; a plurality of grounding buses arranged on the insulating body; a plurality of grounding buses and a plurality of terminal groups arranged in a row in the front-to-back direction are arranged between two adjacent shielding sheets on the left and right, and one grounding bus is arranged between two adjacent terminal groups on the front and back, a plurality of grounding buses are conductively connected to two adjacent shielding sheets on the left and right, wherein the grounding bus in one column and the first main body of the signal terminal in at least one side of the adjacent column are arranged side by side on the left and right.

[0009] Further, in the up-down direction, the ground bus has a first height, the insulating body has a second height, and the first height is higher than half of the second height.

[0010] Further, in the front-to-back direction, the thickness of the ground bus is greater than the thickness of the first main body portion of the signal terminal.

[0011] Furthermore, the plurality of grounding buses include a plurality of upper grounding buses and a plurality of lower grounding buses, and the plurality of upper grounding buses and the plurality of lower grounding buses are arranged one by one in the up and down directions, and the upper grounding buses and the lower grounding buses are respectively in contact with the second main body parts of the two adjacent shielding sheets on the left and right.

[0012] Furthermore, in the up-down direction, the insulating body has a center plane, and the ground bus contacts the second main body portions of two adjacent shielding sheets at at least one position close to the center plane and away from the upper surface and the lower surface.

[0013] Furthermore, the shielding sheet has at least one elastic arm protruding toward each of the grounding buses in the left-right direction relative to the second main body, the second main body is provided with at least one opening, the elastic arm is connected to at least one side of the upper and lower edges of the opening, in the front-to-back direction, the width of the elastic arm is smaller than the width of the opening, and in the left-right direction, the elastic arm is in contact with the corresponding grounding bus.

[0014] Furthermore, the ground bus includes a base portion disposed on the insulating body. In the front-to-back direction, the ground bus has at least one convex bump protruding relative to the base portion, and the convex bump is used to fix the ground bus to the insulating body.

[0015] Furthermore, the grounding bus includes a base provided on the insulating body, and two mounting feet extending downward from the base and spaced apart from each other on the left and right, the insulating body includes a plurality of recesses penetrating the upper surface, a protrusion extending upward from the bottom wall of the recess, and the protrusion connecting two opposite side walls of the recess in the front-to-back direction, the base is inserted into the recess from top to bottom, and the protrusion is located between the two mounting feet.

[0016] Furthermore, the insulating body has a plurality of receiving grooves extending vertically therethrough, the shielding sheet is received in the receiving grooves, the receiving grooves have two groove walls arranged opposite to each other along the left-right direction, and at least one of the groove walls has a plurality of protrusions protruding toward the second main body portion, and a plurality of protrusions are provided on one of the left and right sides of the second main body portion, and each of the protrusions is interfered with by a corresponding one of the protrusions.

[0017] Furthermore, the insulating body has a plurality of receiving grooves extending vertically therethrough, the shielding sheet is received in the receiving grooves, the receiving grooves have two groove walls arranged opposite to each other in the left-right direction, and at least one of the groove walls has a plurality of protrusions protruding toward the second main body portion, the plurality of protrusions are arranged at intervals in the front-to-back direction, a plurality of connecting portions extend from one of the upper and lower sides of the second main body portion, and each of the connecting portions is located in the space defined by the two adjacent front and rear protrusions in the receiving groove.

[0018] Furthermore, the insulating body has a plurality of receiving grooves extending upward and downward, the shielding sheet is received in the receiving grooves, the receiving grooves have two groove walls arranged opposite to each other in the left and right directions, the insulating body is provided with at least one supporting section in the receiving groove, the supporting section connects the two groove walls in the left and right directions, the second main body is provided with a plurality of notches formed by being recessed upward from its bottom, the supporting section is accommodated in the notches so that the second main body is supported by the supporting section.

[0019] Furthermore, the insulating body has a plurality of grooves, the plurality of grooves comprising a plurality of upper grooves penetrating the upper surface and a plurality of lower grooves penetrating the lower surface, the plurality of upper grooves and the plurality of lower grooves being aligned vertically, a partition being provided between the upper grooves and the lower grooves aligned vertically therewith, the upper grooves and the lower grooves aligned vertically therewith being both located between two adjacent front and rear first main body parts.

[0020] Compared with the prior art, the electrical connector of the utility model has the following beneficial effects:

[0021] A plurality of grounding buses and a plurality of terminal groups used as signals are arranged in a row in the front-to-back direction between two adjacent shielding sheets on the left and right, and one grounding bus is arranged between two adjacent terminal groups on the front and back. The plurality of grounding buses are connected to the two adjacent shielding sheets on the left and right. The grounding bus in one row and the first main body of the signal terminal in at least one side of the adjacent row are arranged side by side to shorten the return path of the signal terminal and suppress the resonance of the signal terminal.

Brief Description of the Drawings

[0022] Figure 1 This is a perspective exploded view of the first embodiment of the electrical connector of the utility model;

[0023] Figure 2 for Figure 1 The combined partial top view;

[0024] Figure 3 for Figure 1 A partial stereoscopic image after assembly with one of the shielding sheets hidden;

[0025] Figure 4 for Figure 2 A partial enlarged view of A after hiding one of the shielding sheets;

[0026] Figure 5 for Figure 2 A partial cross-sectional view cut along the BB direction;

[0027] Figure 6 for Figure 2 A partial cross-sectional view taken along the CC direction;

[0028] Figure 7 for Figure 2 A partial cross-sectional view cut along the DD direction;

[0029] Figure 8 for Figure 2 Schematic diagram after hiding the insulation body;

[0030] Fig. 9 for Figure 2 Cross-sectional view along the EE direction;

[0031] Fig.10 for Fig. 9 A schematic diagram showing the insulating body hidden and the elastic arm of the shielding sheet not being crimped by the insulating body;

[0032] Fig.11 It is a perspective exploded view of the second embodiment of the electrical connector of the utility model;

[0033] Fig.12 for Fig.11 The combined partial top view;

[0034] Fig.13 for Fig.11 A partial stereoscopic image after assembly with one of the shielding sheets hidden;

[0035] Fig.14 for Fig.12 Cross-sectional view along the FF direction;

[0036] Fig.15 for Fig.12 A partial cross-sectional view taken along the GG direction;

[0037] Fig.16 for Fig.12 A partial cross-sectional view taken along the HH direction;

[0038] Fig.17 for Fig.12 A partial cross-sectional view taken along direction II;

[0039] Fig.18 for Fig.12 A partial top view after the insulating body is hidden;

[0040] Fig.19 for Fig.12 Cross-sectional view taken along the JJ direction.

[0041] Description of the accompanying drawings for the specific implementation:

[0042]

[0043] [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] For ease of understanding, the X-axis extension direction is defined as the front-to-back direction (where the positive direction of the X-axis is the front direction), the Z-axis extension direction is defined as the up-down direction (where the positive direction of the Z-axis is the upward direction), and the Y-axis direction is defined as the left-right direction (where the positive direction of the Y-axis is the right direction).

[0046] like Figures 1 to 10 FIG. 1 is a schematic diagram of a first embodiment of an electrical connector 100 of the present invention. Figures 11 to 19 , which is a schematic diagram of a second embodiment of an electrical connector 100 of the present invention. In each embodiment, the electrical connector 100 includes an insulating body 1 , a plurality of signal terminals 2 , a plurality of shielding sheets 3 and a plurality of grounding buses 4 .

[0047] like Figure 1 and Figure 2 , Fig.11 and Fig.12 As shown, in each embodiment, the insulating body 1 has an upper surface 1a and a lower surface 1b disposed opposite to each other, and the insulating body 1 is defined to have a center plane 1c in the vertical direction (refer to Fig. 9 and Fig.19 ), the insulating body 1 has a plurality of receiving grooves 11, a plurality of recesses 12 and a plurality of material-cutting grooves 13, the receiving grooves 11 penetrate the upper surface 1a and the lower surface 1b from top to bottom, the recesses 12 and the material-cutting grooves 13 penetrate at least one of the upper surface 1a and the lower surface 1b, in the left and right directions, the recesses 12 and the material-cutting grooves 13 are both located between two adjacent receiving grooves 11, the recesses 12 connect the two adjacent receiving grooves 11, and the material-cutting grooves 13 are located between two adjacent recesses 12 in the front and rear directions.

[0048] like Figure 3 and Figure 4 , Fig.13 and Fig.16 As shown, in each embodiment, a plurality of the receiving grooves 11 are arranged side by side along the left-right direction, the receiving groove 11 has two groove walls 111 arranged opposite to each other along the left-right direction, and the insulating body 1 has a plurality of protrusions 112 protruding from the groove walls 111 on the left and right sides of the receiving groove 11 into the receiving groove 11 respectively, the plurality of protrusions 112 on the same side of the groove wall 111 are arranged at intervals in the front-to-back direction, and the plurality of protrusions 112 on both sides of the receiving groove 11 are arranged one by one in the left-to-right direction, the insulating body 1 is provided with a plurality of support segments 14 in the receiving groove 11, the plurality of support segments 14 are arranged at intervals in the front-to-back direction, and each of the support segments 14 is connected to the two groove walls 111 of the corresponding receiving groove 11 in the left-to-right direction.

[0049] like Figure 1 , Figure 5 and Figure 8 , Fig.11 , Fig.15 and Fig.18 As shown, in each embodiment, the plurality of signal terminals 2 include a plurality of terminal groups R, each of the terminal groups R includes at least one signal terminal 2, the signal terminal 2 is formed by stamping a metal plate, the signal terminal 2 includes a first main body 21 and a first contact arm 22 extending upward from the first main body 21, and a first conductive arm 23 extending downward from the first main body 21 and exposed on the lower surface 1b, the first contact arm 22 has a first contact portion 221 exposed on the upper surface 1a, the first contact portion 221 is located in front of the first main body 21, specifically, the first main body 21 is in the shape of a plate, extending vertically in the up-down direction, the thickness of the first main body 21 in the front-to-back direction is the thickness of the metal plate, and the first conductive arm 23 and the first contact arm 22 are substantially symmetrically arranged up and down.

[0050] like Figure 1 and Figure 6 , Fig.11 and Fig.16 As shown, in each embodiment, the shielding sheet 3 is roughly flat, and each of the shielding sheets 3 extends in the front-to-back direction. Each of the shielding sheets 3 has a second main body portion 31, a plurality of protrusions 36 protruding from one of the left and right sides of the second main body portion 31, a plurality of connecting portions 37 extending from one of the upper and lower sides of the second main body portion 31, a plurality of second contact arms 32 extending upward from the second main body portion 31, and a plurality of second guide arms 33 extending downward from the second main body portion 31 and exposed on the lower surface 1b, the second contact arm 32 has a second contact portion 321 exposed on the upper surface 1a, the second contact portion 321 is located in front of the connection between the second contact arm 32 and the second main body portion 31, and the connecting portion 37 is used to connect a material strip. Specifically, the connecting portion 37 is arranged on the upper side of the second main body portion 31 and exposed upward on the upper surface 1a. The second guide arm 33 and the second contact arm 32 are roughly symmetrically arranged up and down. In other embodiments, the connecting portion 37 can be extended from the lower side of the second main body portion 31 as required.

[0051] like Figure 3 and Figure 7 , Fig.13 and Fig.17As shown, in each embodiment, the plurality of shielding sheets 3 are received in the plurality of receiving grooves 11 one by one from top to bottom, and the shielding sheets 3 are supported upward by the supporting sections 14 in the corresponding receiving grooves 11. In the left-right direction, the second main body portion 31 is located between the plurality of protruding portions 112 protruding from the groove walls 111 on the left and right sides of the corresponding receiving groove 11, and each of the protrusions 36 is interfered with by a corresponding one of the protruding portions 112, so that the shielding sheets 3 are fixed to the corresponding receiving groove 11, and each of the connecting portions 37 is located in the space defined by the two adjacent front and rear protruding portions 112 in the receiving groove 11, so that it is easy to make way, and there is space to break the connection between the material strip and the connecting portion 37.

[0052] like Figure 5 and Figure 6 , Fig.15 and Fig.16 As shown, in each embodiment, the first contact portion 221 and the second contact portion 321 expose the upper surface 1a, and are used for crimping contact with a chip module (not shown), and the first conductive arm 23 and the second conductive arm 33 both protrude downward from the surface, and are used for crimping contact with a circuit board (not shown). In other embodiments, the first conductive arm 23 and the second conductive arm 33 can also be connected to the circuit board (not shown) by welding.

[0053] like Figure 1 and Figure 5 , Fig.11 and Fig.15 As shown, a plurality of the grounding buses 4 are received in a plurality of the recesses 12. Specifically, the grounding buses 4 are formed by blanking a metal plate. Of course, the grounding buses 4 can also be made of other conductive materials. Each of the grounding buses 4 has a base 41 and a convex bump 43 protruding relative to the base 41 in the front-to-back direction. The convex bump 43 cooperates with the corresponding recess 12 to fix the grounding bus 4 on the insulating body 1.

[0054] like Figure 8 and Fig.18As shown, in each embodiment, a plurality of grounding buses 4 and a plurality of terminal groups R arranged in a row along the front-to-back direction are provided between at least some of the two shielding sheets 3 adjacent to each other on the left and right sides, and a grounding bus 4 is provided between the two terminal groups R adjacent to each other on the front and back sides, and the plurality of grounding buses 4 are connected to the two shielding sheets 3 adjacent to each other on the left and right sides, wherein the grounding bus 4 in one row and the first main body 21 of the signal terminal 2 in the row adjacent to at least one side thereof are arranged side by side on the left and right sides, and in the front-to-back direction, the thickness of the base 41 of the grounding bus 4 is greater than the thickness of the first main body 21 of the signal terminal 2, specifically, the boundary of the first main body 21 in the front-to-back direction does not exceed the boundary of the grounding bus 4 arranged side by side in the front and back directions in the front-to-back directions, and some of the terminal groups R between the two shielding sheets 3 adjacent to each other on the left and right sides include two signal terminals 2 arranged side by side on the left and right sides or two signal terminals 2 arranged side by side on the front and back sides, and the two signal terminals 2 are used to transmit differential signals, and some of the terminal groups R between the two shielding sheets 3 adjacent to each other on the left and right sides include one signal terminal 2. In other embodiments, the terminal group R set before every two adjacent shielding plates 3 on the left and right may include two signal terminals 2 set side by side on the left and right or two signal terminals 2 set side by side on the front and back, and the two signal terminals 2 are used to transmit differential signals, or the terminal group R set before every two adjacent shielding plates 3 on the left and right may include only one signal terminal 2.

[0055] like Fig.10 As shown, in the first embodiment, in the up-down direction, the ground bus 4 has a first height H1, and the insulating body 1 has a second height H2, and the first height H1 is higher than half of the second height H2.

[0056] like Figure 4 and Figure 5 As shown, in the first embodiment, both the cutting grooves 13 and the recesses 12 only penetrate the upper surface 1 a upward, and each of the cutting grooves 13 is connected to one of the recesses 12 in the front-to-back direction.

[0057] like Figure 6 As shown, in the first embodiment, the second main body portion 31 is provided with a plurality of notches 38 recessed upward from the bottom thereof, and the support segment 14 is received in the notches 38 so that the second main body portion 31 is supported by the support segment 14 .

[0058] like Figure 6 , Fig. 9 and Fig.10As shown, in the first embodiment, the shielding sheet 3 has a plurality of elastic arms 34 protruding in the left-right direction relative to the second main body portion 31, wherein at least one of the elastic arms 34 on each of the shielding sheets 3 protrudes in the left-right direction relative to the corresponding second main body portion 31 toward each of the grounding buses 4 and contacts therewith. Specifically, in this embodiment, each of the shielding sheets 3 has an elastic arm 34 protruding in the left-right direction relative to the second main body portion 31 toward each of the grounding buses 4, and the second main body portion 31 has a plurality of openings 35 opened corresponding to the plurality of elastic arms 34, and the elastic arm 34 is connected to one of the upper and lower edges of the corresponding opening 35, and in the front-to-back direction, the width of the elastic arm 34 is smaller than the width of the opening 35. , so as to facilitate the stamping forming of the elastic arm 34. In the left and right directions, part of the grounding bus 4 contacts the elastic arm 34 of at least one of the corresponding two adjacent shielding sheets 3 at a position close to the center plane 1c and away from the upper surface 1a and the lower surface 1b. The two elastic arms 34 of the two adjacent shielding sheets 3 contacting the same grounding bus 4 can be staggered in the left and right directions (that is, the two elastic arms 34 are arranged at different heights) or can be aligned in the left and right directions (that is, the two elastic arms 34 are arranged at the same height). Another part of the grounding bus 4 contacts the elastic arm 34 of at least one of the corresponding two adjacent shielding sheets 3 at a position away from the center plane 1c and close to the upper surface 1a or close to the lower surface 1b. In other embodiments, the grounding bus 4 contacts the two elastic arms 34 of the corresponding two adjacent shielding sheets 3 at a position close to the center plane 1c and away from the upper surface 1a and the lower surface 1b, which is a better design. The shielding sheet 3 is short-circuited at a position approximately in the middle of the up and down directions, which can effectively suppress resonance.

[0059] like Figure 4 and Fig.10 As shown, in the first embodiment, the base 41 has two mounting feet 44 extending downward and spaced apart from each other on the left and right sides, a protrusion 121 extends upward from the bottom wall surface of the recess 12, and the protrusion 121 connects the two opposite side walls of the corresponding recess 12 in the front-to-back direction, the base 41 is inserted into the recess 12 from top to bottom, and the protrusion 121 is located between the two mounting feet 44.

[0060] like Fig.14As shown, in the second embodiment, the plurality of material grooves 13 include a plurality of upper material grooves 13a passing through the upper surface 1a and a plurality of lower material grooves 13b passing through the lower surface 1b, the plurality of upper material grooves 13a and the plurality of lower material grooves 13b are aligned vertically, and a partition section 15 is provided between each of the upper material grooves 13a and the lower material grooves 13b aligned vertically therewith to separate the two, and the upper material grooves 13a and the lower material grooves 13b aligned vertically therewith are both located between two adjacent front and rear first main body parts 21.

[0061] like Fig.11 and Fig.19 As shown, a portion of the multiple recesses 12 only penetrates the upper surface 1a upward, and another portion of the multiple recesses 12 only penetrates the lower surface 1b downward, and a portion of the recesses 12 that penetrates the upper surface 1a upward and another portion of the recesses 12 that penetrates the lower surface 1b downward are aligned one by one in the upper and lower directions.

[0062] like Fig.19 As shown, in the second embodiment, the plurality of grounding buses 4 include a plurality of upper grounding buses 4a and a plurality of lower grounding buses 4b. The plurality of upper grounding buses 4a are accommodated in a portion of the recess 12 that penetrates upward through the upper surface 1a, and the plurality of lower grounding buses 4b are accommodated in another portion of the recess 12 that penetrates downward through the lower surface 1b. In this way, the plurality of upper grounding buses 4a and the plurality of lower grounding buses 4b are arranged one by one in the up and down directions, and the upper grounding buses 4a and the lower grounding buses 4b are respectively in contact with the second main body portions 31 of the two adjacent shielding sheets 3 on the left and right.

[0063] like Fig.19As shown, the ground bus 4 contacts the second main body 31 of the two adjacent shielding sheets 3 at at least one position close to the center plane 1c and away from the upper surface 1a and the lower surface 1b. In this embodiment, at least one convex portion 42 protrudes from the left and right sides of the base 41, and at least one convex portion 42 provided on each side of the base 41 contacts the second main body 31 of the two adjacent shielding sheets 3 at a position close to the center plane 1c and away from the upper surface 1a and the lower surface 1b. Specifically, the base Two protrusions 42 protrude from the left and right sides of 41 respectively, and the two protrusions 42 on each side of the base 41 are arranged at intervals up and down, wherein the two protrusions 42 located at the bottom contact the second main body portions 31 of the two adjacent shielding plates 3 at a position close to the center plane 1c and away from the upper surface 1a and the lower surface 1b, and the two protrusions 42 located at the top contact the second main body portions 31 of the two adjacent shielding plates 3 at a position away from the center plane 1c and close to the upper surface 1a or the lower surface 1b.

[0064] In summary, the electrical connector 100 of the present invention has the following beneficial effects:

[0065] (1) A plurality of grounding buses 4 and a plurality of terminal groups R arranged in a row in the front-to-back direction are provided between two adjacent shielding sheets 3 on the left and right sides, and one grounding bus 4 is provided between two adjacent terminal groups R on the front and back sides. The plurality of grounding buses 4 are connected to the two adjacent shielding sheets 3 on the left and right sides. The grounding buses 4 in one row and the first main body portions 21 of the signal terminals 2 in at least one side of the adjacent row are arranged side by side on the left and right sides, so as to shorten the return path of the signal terminals 2 and suppress the resonance of the signal terminals 2.

[0066] (2) In the up-down direction, the ground bus 4 has the first height H1, and the insulating body 1 has the second height H2. The first height H1 is higher than half of the second height H2, so as to effectively shield the signal terminal 2. The ground bus 4 has a sufficient height to short-circuit the shielding sheet 3 at a position close to the middle of the shielding sheet 3 in the up-down direction, so as to effectively suppress resonance. In the front-to-back direction, the thickness of the ground bus 4 is greater than the thickness of the first main body 21 of the signal terminal 2, so as to ensure that the ground bus 4 has a sufficient shielding area and that the ground bus 4 has a high structural strength, so as to facilitate the installation and removal of the ground bus 4.

[0067] (3) The ground bus 4 contacts the elastic arms 34 of the corresponding two adjacent shielding plates 3 at a position close to the center plane 1c and away from the upper surface 1a and the lower surface 1b, thereby reducing the risk of ground mode resonance and satisfying the effect of suppressing the resonance of the signal terminal 2 by the ground bus 4 at a specific frequency.

[0068] (4) The second main body 31 has a plurality of openings 35 corresponding to the plurality of elastic arms 34. The elastic arms 34 are connected to one of the upper and lower edges of the corresponding openings 35, and in the front-to-back direction, the width of the elastic arms 34 is smaller than the width of the openings 35. This facilitates the stamping of the elastic arms 34 and increases the deformable space of the elastic arms 34 in the openings 35, so that the deformation of the elastic arms 34 is not easily affected by the boundaries of the openings 35.

[0069] (5) The shielding sheet 3 is received in the receiving groove 11. In the left-right direction, the second main body portion 31 is located between the protruding portions 112. Each of the protrusions 36 is interfered with by a corresponding protruding portion 112 to prevent the shielding sheet 3 from moving left and right. Each of the connecting portions 37 is located in the space defined by the two adjacent protruding portions 112 in the front and rear of the receiving groove 11, providing a swinging space for deflecting the material strip left and right to disconnect it from the shielding sheet 3.

[0070] (6) The support section 14 is accommodated in the notch 38 of the second main body 31 , so that the second main body 31 is supported by the support section 14 , thereby enhancing the strength of the insulating body 1 and also enhancing the stability of the fixation of the second main body 31 .

[0071] (7) Each of the grounding buses 4 has a base 41 and a convex bump 43 protruding relative to the base 41 in the front-to-back direction. The convex bump 43 cooperates with the corresponding concave portion 12 to fix the grounding bus 4 on the insulating body 1 to prevent the grounding bus 4 from swinging back and forth in the front-to-back direction.

[0072] (8) The base 41 of the grounding bus 4 has two mounting feet 44 extending downward and spaced apart from each other on the left and right sides. The protruding portion 121 extends upward from the bottom wall of the recess 12, and the protruding portion 121 connects the two opposite side walls of the corresponding recess 12 in the front-to-back direction. The base 41 is inserted into the recess 12 from top to bottom, and the protruding portion 121 is located between the two mounting feet 44, which facilitates the accurate installation of the grounding bus 4 in the recess 12 and also enhances the stability of the grounding bus 4 in the recess 12.

[0073] (9) The plurality of upper material grooves 13a and the plurality of lower material grooves 13b are arranged in alignment with each other, and a partition 15 is provided between each of the upper material grooves 13a and the lower material grooves 13b aligned with it to separate the two. The upper material grooves 13a and the lower material grooves 13b and the upper material grooves 13a and the lower material grooves 13b aligned with them are all located between two adjacent first main body parts 21 in front and back. The arrangement of the upper material grooves 13a and the lower material grooves 13b makes it difficult for the insulating body 1 to shrink, and reduces the abnormal flow imbalance caused by the molten plastic entering the cavity. The partition 15 can maintain the strength of the insulating body 1 in the vertical direction to prevent the insulating body 1 from breaking due to excessive pressure when it is compressed from top to bottom.

[0074] The above detailed description is only an explanation of the preferred embodiment of the utility model, and does not limit the patent scope of the utility model. Therefore, all equivalent technical changes made by using the description and illustrations of this creation are included in the patent scope of this creation.

Claims

1. An electrical connector, characterized in that: include: An insulating body having an upper surface and a lower surface disposed opposite to each other; A plurality of signal terminals are accommodated in the insulating body, and the signal terminals have a first main body, a first contact arm extending upward from the first main body, and a first conductive arm extending downward from the first main body and exposed on the lower surface, the first contact arm has a first contact portion exposed on the upper surface, the plurality of signal terminals include a plurality of terminal groups, and each of the terminal groups includes at least one signal terminal; A plurality of shielding sheets arranged side by side in the left-right direction are accommodated in the insulating body, and the plurality of shielding sheets are arranged side by side in the left-right direction, each of the shielding sheets extends in the front-back direction, each of the shielding sheets has a second main body portion, a plurality of second contact arms extending upward from the second main body portion, and a plurality of second conductive arms extending downward from the second main body portion and exposed on the lower surface, the second contact arm having a second contact portion exposed on the upper surface; A plurality of grounding buses are arranged on the insulating body; A plurality of grounding buses and a plurality of terminal groups are arranged in a row in the front-to-back direction between two adjacent shielding sheets on the left and right sides, and one grounding bus is arranged between two adjacent terminal groups on the front and back sides. The plurality of grounding buses are connected to the two adjacent shielding sheets on the left and right sides, and the grounding bus in one row and the first main body of the signal terminal in at least one side of the adjacent row are arranged side by side on the left and right sides.

2. The electrical connector according to claim 1, wherein: In the up-down direction, the ground bus has a first height, the insulating body has a second height, and the first height is higher than half of the second height.

3. The electrical connector according to claim 1, wherein: In the front-to-back direction, the thickness of the ground bus is greater than the thickness of the first main body portion of the signal terminal.

4. The electrical connector according to claim 1, wherein: The multiple grounding buses include multiple upper grounding buses and multiple lower grounding buses. The multiple upper grounding buses and the multiple lower grounding buses are arranged one by one in the up and down directions. The upper grounding buses and the lower grounding buses are respectively in contact with the second main body parts of the two adjacent shielding sheets on the left and right.

5. The electrical connector according to claim 1, wherein: In the up-down direction, the insulating body has a center plane, and the ground bus contacts the second main body portions of two adjacent shielding sheets at at least one position close to the center plane and away from the upper surface and the lower surface.

6. The electrical connector according to claim 1, wherein: The shielding sheet has at least one elastic arm protruding toward each of the grounding buses in the left-right direction relative to the second main body, the second main body is provided with at least one opening, the elastic arm is connected to at least one side of the upper and lower edges of the opening, in the front-to-back direction, the width of the elastic arm is smaller than the width of the opening, and in the left-right direction, the elastic arm is in contact with the corresponding grounding bus.

7. The electrical connector according to claim 1, wherein: The ground bus includes a base portion disposed on the insulating body. In the front-to-back direction, the ground bus has at least one convex bump protruding relative to the base portion. The convex bump is used to fix the ground bus on the insulating body.

8. The electrical connector according to claim 1, wherein: The grounding bus includes a base provided on the insulating body, and two mounting feet extending downward from the base and spaced apart from each other on the left and right sides. The insulating body includes a plurality of recesses penetrating the upper surface, and a protrusion extends upward from the bottom wall of the recess, and the protrusion connects two opposite side walls of the recess in the front-to-back direction. The base is inserted into the recess from top to bottom, and the protrusion is located between the two mounting feet.

9. The electrical connector according to claim 1, wherein: The insulating body has a plurality of receiving grooves extending vertically therethrough, the shielding sheet is received in the receiving grooves, the receiving grooves have two groove walls arranged opposite to each other in the left-right direction, and at least one of the groove walls has a plurality of protrusions protruding toward the second main body portion, and a plurality of protrusions are provided on one of the left and right sides of the second main body portion, and each of the protrusions is interfered with by a corresponding protrusion.

10. The electrical connector according to claim 1, wherein: The insulating body has a plurality of receiving grooves extending vertically therethrough, the shielding sheet is received in the receiving grooves, the receiving grooves have two groove walls arranged opposite to each other in the left-right direction, and at least one of the groove walls has a plurality of protrusions protruding toward the second main body portion, the plurality of protrusions are arranged at intervals in the front-to-back direction, a plurality of connecting parts extend from one of the upper and lower sides of the second main body portion, and each of the connecting parts is located in the space defined by the two adjacent front and rear protrusions in the receiving groove.

11. The electrical connector according to claim 1, wherein: The insulating body has a plurality of receiving grooves extending vertically therethrough, the shielding sheet is received in the receiving grooves, the receiving grooves have two groove walls arranged opposite to each other in the left-right direction, the insulating body has at least one supporting section arranged in the receiving groove, the supporting section connects the two groove walls in the left-right direction, the second main body portion has a plurality of notches formed by being recessed upward from its bottom, the supporting section is received in the notches so that the second main body portion is supported by the supporting section.

12. The electrical connector according to claim 1, wherein: The insulating body has a plurality of grooves, including a plurality of upper grooves penetrating the upper surface and a plurality of lower grooves penetrating the lower surface. The plurality of upper grooves and the plurality of lower grooves are aligned vertically. A partition is provided between the upper grooves and the lower grooves aligned vertically therewith. The upper grooves and the lower grooves aligned vertically therewith are both located between two adjacent front and rear first main body parts.

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