Electrical connector

Abstract

An electrical connector includes an insulating housing, a plurality of terminal assemblies arranged in a row along a first direction and received in the insulating housing, each terminal assembly including at least one conductive terminal and an insulating member covering an outer side of the conductive terminal, and each conductive terminal including an adjustment section including a first section, a second section connected with the first section, and a groove located on a side of the second section away from the first section, wherein the insulating member includes a surface, the first section protrudes out of the surface to be located outside the insulating member, a recessed portion is formed from the surface to the groove, and at least part of the second section is exposed in the recessed portion, and at least part of the recessed portion and at least part of the groove are aligned with each other in a second direction perpendicular to the first direction as viewed along the first direction.

Description

Technical Field

[0001] This invention relates to an electrical connector, and more particularly to an electrical connector capable of balancing electrical characteristics to reduce losses. Background Technology

[0002] In the field of high-speed signal transmission, to meet the requirements of high-speed transmission, the electrical characteristics of electrical connectors usually need to be adjusted to meet the specifications before further manufacturing. As one of the more important electrical characteristics of electrical connectors, characteristic impedance is generally the primary electrical characteristic parameter considered by researchers in this field. The increase or decrease of characteristic impedance is actually to meet the specification requirements of the impedance curve of the conductive terminals in the electrical connector changing with time during high-speed transmission, or to avoid a cliff-like difference in characteristic impedance values ​​between adjacent time periods, which would result in a large return loss. Sometimes, in order to meet the characteristic impedance requirements in the above two situations, it is necessary to increase the characteristic impedance at a certain point of the conductive terminals in the electrical connector. However, since there are mutual influences between the electrical characteristic parameters of electrical connectors, the increase in characteristic impedance will also lead to an increase in insertion loss, thereby causing signal attenuation.

[0003] Therefore, in order to balance the problem of increased insertion loss caused by the increase in characteristic impedance, it is necessary to design a new electrical connector to overcome the above problems. Summary of the Invention

[0004] In view of the problems faced by the prior art, the purpose of this invention is to provide an electrical connector that can better balance electrical characteristics and thus reduce losses.

[0005] To achieve the above objectives, the present invention employs the following technical means:

[0006] An electrical connector, characterized in that it comprises: an insulating housing; a plurality of terminal assemblies arranged in a row along a first direction and housed within the insulating housing, each terminal assembly comprising at least one conductive terminal and an insulating member covering the outside of the conductive terminal, each conductive terminal comprising an adjustment section, the adjustment section comprising a first section, a second section connected to the first section, and a groove, the groove being located on the side of the second section opposite to the first section; wherein the insulating member comprises a surface, and the first section protrudes from the surface to be located outside the insulating member. The first section is exposed to the air, and the dielectric constant of the air is less than that of the insulating element, thereby reducing the capacitance of the first section. A recess is formed from the surface toward the groove, the recess is filled with air, and at least a portion of the second section is exposed in the recess. Viewed along the first direction, at least a portion of the recess and at least a portion of the groove are aligned with each other in a second direction, the second direction being perpendicular to the first direction, such that in the second direction, the width of the portion of the adjustment section exposed to the air is greater than the width of the portion covered by the insulating element.

[0007] Furthermore, along a third direction, the two sides of the adjustment section are provided with opposing and spaced first end edges and second end edges. The insulating member includes a first side edge and a second side edge located on both sides of the recessed portion and disposed opposingly and spaced apart. The third direction is perpendicular to the first direction and the second direction. In the second direction, the first side edge and the second side edge are both located between the first end edge and the second end edge.

[0008] Furthermore, along a third direction, the two sides of the adjustment section are provided with opposing and spaced first end edges and second end edges. The insulating member includes a first side edge and a second side edge located on both sides of the recess and disposed opposingly and spaced apart. The third direction is perpendicular to the first direction and the second direction. In the second direction, the first side edge is aligned with the first end edge, and the second side edge is aligned with the second end edge.

[0009] Furthermore, the conductive terminal also includes a first connecting segment and a second connecting segment, the adjustment segment is located between the first connecting segment and the second connecting segment, and along the second direction, the adjustment segment is formed to protrude relative to the first connecting segment and the second connecting segment, and the groove penetrates the adjustment segment in a direction away from the protrusion of the adjustment segment.

[0010] Furthermore, the first section is provided with a first stop surface, the insulating component is provided with a second stop surface, and the insulating shell is respectively provided with a first limiting surface and a second limiting surface that cooperate with the first stop surface and the second stop surface to stop.

[0011] Furthermore, multiple conductive terminals in the multiple terminal assemblies are arranged in a row along the first direction, and two adjacent conductive terminals in a row are used to transmit a differential signal, and the recesses of the two insulating members corresponding to the two conductive terminals used to transmit a differential signal are interconnected.

[0012] Furthermore, the conductive terminal also includes a first connecting segment integrally connected to the adjustment section and a contact arm extending from the first connecting segment. The contact arm is conductive to a mating element, defining that the electrical connector and the mating element are interlocked along a third direction, which is perpendicular to the first direction and the second direction. The first connecting segment includes a capacitive section. Along the second direction, the width of the capacitive section is greater than the width of the contact arm. The insulating member includes a dielectric separating surface. The dielectric separating surface is perpendicular to the third direction and divides the capacitive section into two parts along the third direction. One part is entirely located within the insulating member, and the other part protrudes from the dielectric separating surface to be located outside the insulating member.

[0013] Furthermore, the insulating element includes a filling portion located within the groove.

[0014] Furthermore, the insulating member also includes a covering portion located between the filling portion and the recessed portion, and the conductive terminal also includes a third section located between the second section and the groove, the covering portion covering the third section.

[0015] Furthermore, each of the terminal assemblies includes four conductive terminals arranged along the second direction. The conductive terminals in the plurality of terminal assemblies are sequentially defined along the second direction as a first row of conductive terminals, a second row of conductive terminals, a third row of conductive terminals, and a fourth row of conductive terminals. Two adjacent conductive terminals in the first row form a first differential signal pair; two adjacent conductive terminals in the second row form a second differential signal pair; two adjacent conductive terminals in the third row form a third differential signal pair; and two adjacent conductive terminals in the fourth row form a fourth differential signal pair. Each conductive terminal in the second differential signal pair protrudes towards the third differential signal pair to form an adjustment portion, and the two adjustment portions in the second differential signal pair are aligned along the first direction. Similarly, each conductive terminal in the third differential signal pair protrudes towards the second differential signal pair to form an adjustment portion, and the two adjustment portions in the third differential signal pair are aligned along the first direction.

[0016] Furthermore, each of the terminal assemblies includes two conductive terminals arranged in a row in the second direction; two adjustment sections of the two conductive terminals are oppositely protruding and extend from each adjustment section to the other adjustment section to form an adjustment portion.

[0017] Furthermore, each of the terminal assemblies includes two conductive terminals, and in the second direction, each of the two conductive terminals is recessed to form a groove, and the two grooves are arranged opposite to each other along the second direction.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The adjustment section is provided by having a first section located outside the insulating element, according to the formula , The dielectric constant of the insulating element Dielectric constant greater than that of air The first section is located outside the insulating element and exposed to air or other transmission media with a dielectric constant lower than that of the insulating element, such that the dielectric constant of the transmission medium surrounding the first section is... As the capacitance C decreases, the characteristic impedance Z of the adjustment section increases overall. Since the electrical parameters of the connector interact, the increased characteristic impedance also leads to increased insertion loss, resulting in greater signal attenuation. To balance the impact of characteristic impedance and insertion loss on signal transmission, the insulating element is recessed, and the second section of the adjustment section is exposed within this recess. Looking along the first direction, at least a portion of the recess aligns with at least a portion of the groove in the adjustment section. Because the dissipation factor of the insulating element is large, its loss is also significant when used as a transmission medium. Therefore, more of the adjustment section is exposed to air, allowing most of the electromagnetic waves to propagate losslessly through the air when the signal is transmitted in the adjustment section, thus balancing the increased insertion loss caused by the increased characteristic impedance in the first section of the adjustment section. Attached Figure Description

[0020] Figure 1 This is a perspective view of the electrical connector of the present invention;

[0021] Figure 2 This is a perspective view of two terminal components used in this invention to transmit a differential signal;

[0022] Figure 3 This is a perspective view of two columns of conductive terminals used in this invention to transmit a differential signal;

[0023] Figure 4 This is a side view of the terminal assembly;

[0024] Figure 5 for Figure 4 Enlarged view at point A;

[0025] Figure 6 This is a cross-sectional view of the terminal assembly and the insulating housing after assembly.

[0026] Explanation of reference numerals in the accompanying drawings for the specific implementation methods:

[0027] Detailed Implementation

[0028] To facilitate a better understanding of the purpose, structure, features, and effects of this invention, the invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0029] like Figures 1 to 6 As shown, the electrical connector 100 of the present invention defines a first direction as the X-axis, a second direction as the Y-axis, and a third direction (mating direction) as the Z-axis.

[0030] like Figure 1 As shown, the electrical connector 100 is plugged into a mating element (not shown) along a third direction. The electrical connector 100 includes an insulating shell 1 and a plurality of terminal assemblies 2 located inside the insulating shell 1. The plurality of terminal assemblies 2 are arranged in a row along the first direction. Each terminal assembly 2 includes four conductive terminals 21 and an insulating member 22 covering the outside of the conductive terminals 21.

[0031] like Figures 1 to 3As shown, multiple conductive terminals 21 of the multiple terminal assemblies 2 are arranged in a row along the first direction, and two adjacent conductive terminals 21 in a row are used to transmit a differential signal. Each conductive terminal 21 includes a first connecting segment 211, a second connecting segment 212, an adjustment section 214 located between the first connecting segment 211 and the second connecting segment 212, and a contact arm 213 extending from the first connecting segment 211. The first connecting segment 211 is located between the adjustment section 214 and the contact arm 213. Along the second direction, the adjustment section 214 is positioned relative to the first connecting segment 211 and the second connecting segment 212. 12. A protrusion is formed; the adjustment section 214 includes a first section 2141, a second section 2142 connected to the first section 2141, and a groove 2144. The groove 2144 is located on the side of the second section 2142 away from the first section 2141, and the groove 2144 protrudes through the adjustment section 214 in a direction away from the adjustment section 214. The first section 2141 is provided with a first stop surface 2141a. The contact arm 213 is connected to the docking element. The first connecting section 211 includes a receptive section 2111. Along the second direction, the width of the receptive section 2111 is greater than the width of the contact arm 213.

[0032] like Figures 4 to 5 As shown, along a third direction, the adjustment section 214 has opposing and spaced-apart first end edges 2144a and second end edges 2144b on both sides. The insulating member 22 includes a first side edge and a second side edge located opposite and spaced-apart on both sides of the recess 224. The third direction is perpendicular to the first direction and the second direction. In other words, the adjustment section 214 is defined between the first end edge 2144a and the second end edge 2144b, and the recess 224 is defined between the first side edge and the second side edge. Viewed along the second direction, the first side edge and the second side edge... The second side edges are located between the first end edge 2144a and the second end edge 2144b. Of course, since there is mutual influence between the electrical characteristic parameters, when adjusting the electrical characteristics of the electrical connector 100, the desired parameter values ​​can be obtained from different angles according to the requirements. In other words, we can also consider only how to minimize the loss, that is, to completely expose the second section 2142 to the air. The structure corresponding to this effect is that when viewed along the second direction, the first side edge is aligned with the first end edge 2144a, and the second side edge is aligned with the second end edge 2144b.

[0033] like Figures 4 to 6As shown, the insulating member 22 includes a surface 221, a second stop surface 222, and a dielectric separating surface 223. The first section 2141 protrudes from the surface 221 and is located outside the insulating member 22. A recessed portion 224 is formed in the direction from the surface 221 toward the groove 2144, and at least a portion of the second section 2142 is exposed in the recessed portion 224. Viewed along the first direction, at least a portion of the recessed portion 224 and at least a portion of the groove 2144 are aligned with each other in the second direction, and the recessed portions 224 of the two insulating members 22 correspondingly covering the outside of the two conductive terminals 21 used to transmit a differential signal are interconnected. The dielectric separating surface 223 is perpendicular to the third direction, and the dielectric separating surface 223 divides the capacitive section 2111 into two parts along the third direction, one part being entirely located inside the insulating member 22, and the other part protruding from the dielectric separating surface 223 and located outside the insulating member 22.

[0034] like Figures 4 to 5 As shown, the insulating member 22 further includes a filling portion 225 and a covering portion 226 located between the filling portion 225 and the recessed portion 224. The filling portion 225 is used to fill the groove 2144. The conductive terminal 21 further includes a third section 2143 located between the second section 2142 and the groove 2144. The covering portion 226 covers the third section 2143.

[0035] like Figure 6 As shown, the insulating outer shell 1 is respectively provided with a first limiting surface 11 and a second limiting surface 12 that cooperate with the first stopping surface 2141a and the second stopping surface 222 to stop.

[0036] like Figures 1 to 3As shown, specifically, each terminal assembly 2 includes four conductive terminals 21 arranged along the second direction. The conductive terminals 21 in the plurality of terminal assemblies 2 are sequentially defined along the second direction as a first row of conductive terminals 21A, a second row of conductive terminals 21B, a third row of conductive terminals 21C, and a fourth row of conductive terminals 21D. Two adjacent conductive terminals 21 in the first row of conductive terminals 21A form a first differential signal pair; two adjacent conductive terminals 21 in the second row of conductive terminals 21B form a second differential signal pair; two adjacent conductive terminals 21 in the third row of conductive terminals 21C form a third differential signal pair; and two adjacent conductive terminals 21 in the fourth row of conductive terminals 21D form a fourth differential signal pair. Each conductive terminal 21 in the second differential signal pair protrudes towards the third differential signal pair to form an adjustment portion 2145, and the two adjustment portions 2145 in the second differential signal pair are aligned along the first direction; each conductive terminal 21 in the third differential signal pair protrudes towards the second differential signal pair to form an adjustment portion 2145, and the two adjustment portions 2145 in the third differential signal pair are aligned along the first direction; and the two adjustment sections 214 between the conductive terminals 21 in the second row of conductive terminals 21B and the conductive terminals 21 in the third row of conductive terminals 21C that correspond one-to-one with the conductive terminals 21 in the second row of conductive terminals 21B are relatively protruding, and the two grooves 2144 are relatively disposed.

[0037] In summary, the electrical connector 100 and its manufacturing method of the present invention have the following beneficial effects:

[0038] 1. The adjustment section 214 is provided with a first section 2141 located outside the insulating member 22, according to the formula , The dielectric constant of the insulating element 22 Dielectric constant greater than that of air The first segment 2141 is located outside the insulating member 22 and exposed to air or other transmission media with a dielectric constant smaller than that of the insulating member 22, such that the dielectric constant of the transmission medium surrounding the first segment 2141 is... As the capacitance C decreases, the characteristic impedance Z of the adjustment section 214 increases overall. Since the electrical characteristics of the connector 100 are interconnected, the increase in characteristic impedance also leads to increased insertion loss. The increase in characteristic impedance and insertion loss leads to greater signal attenuation. To balance the impact of characteristic impedance and insertion loss on signal transmission, the insulating member 22 is recessed to form a recess 224. The second section 2142 of the adjustment section 214 is exposed in the recess 224. When viewed along the first direction, at least a portion of the recess 224 and at least a portion of the groove 2144 of the adjustment section 214 are aligned with each other. Since the dissipation factor of the insulating member 22 is large, the loss is also large when it is used as a transmission medium. Therefore, more of the adjustment section 214 can be exposed to the air, so that when the signal is transmitted in the form of electromagnetic waves in the adjustment section 214, most of the electromagnetic waves can be transmitted in the air without loss, thereby balancing the problem of increased insertion loss at the first section 2141 of the adjustment section 214 due to the increase in characteristic impedance.

[0039] 2. Along a third direction, the adjustment section 214 includes a first end edge 2144a and a second end edge 2144b that are opposite to each other and spaced apart. The insulating member 22 includes a first side edge and a second side edge that are opposite to each other and spaced apart on both sides of the recess 224. In other words, the adjustment section 214 is defined between the first end edge 2144a and the second end edge 2144b, and the recess 224 is defined between the first side edge and the second side edge. Viewed along the second direction, both the first side edge and the second side edge are located between the first end edge 2144a and the second end edge 2144b. That is, the recessed portion 224 does not fully expose the second section 2142, but only partially exposes it. As discussed earlier regarding characteristic impedance, the impedance of the conductive terminal 21 exposed in the air is greater than the characteristic impedance encased in the insulating member 22. Therefore, if too much is exposed, from the perspective of characteristic impedance, the characteristic impedance of the second section 2142 will surge, and the surge in characteristic impedance will also generate a large insertion loss. Therefore, to avoid this situation, only a portion of the second section 2142 is exposed in the recessed portion 224, thereby controlling the characteristic impedance of the adjustment section 214 to not be too large and increase the insertion loss.

[0040] 3. Along a third direction, the adjustment section 214 includes a first end edge 2144a and a second end edge 2144b that are opposite to each other and spaced apart. The insulating member 22 includes a first side edge and a second side edge that are opposite to each other and spaced apart on both sides of the recess 224. In other words, the adjustment section 214 is defined between the first end edge 2144a and the second end edge 2144b, and the recess 224 is defined between the first side edge and the second side edge. Viewed along the second direction, the first side edge is aligned with the first end edge 2144a, and the second side edge is aligned with the second end edge 2144b. That is, the second section 2142 is fully exposed in the recess 224. From the perspective of reducing losses, the second section 2142 is fully exposed in the recess 224, so that the loss of electromagnetic waves in the adjustment section 214 within the insulating member 22 can be minimized.

[0041] 4. According to the formula (d is the length of the conductor that can transmit signals) It can be seen that the length of the conductor that can transmit signals d is proportional to the inductance L. The adjustment section 214 is formed by protruding along the second direction relative to the first connecting section 211 and the second connecting section 212. The groove 2144 actually increases the length of the adjustment section 214 that can transmit signals, thereby increasing the inductance at the adjustment section 214 and raising the characteristic impedance at the adjustment section 214.

[0042] 5. In addition to adjusting the characteristic impedance of the conductive terminal 21, the first section 2141 also has the function of confining the terminal assembly 2 within the insulating shell 1. Furthermore, the insulating member 22 also works together with the first section 2141 to confine the terminal assembly 2 within the insulating shell 1.

[0043] 6. The plurality of conductive terminals 21 in the plurality of terminal assemblies 2 are arranged in a row along the first direction, and two adjacent conductive terminals 21 in a row are used to transmit a differential signal, and the recesses 224 of the two insulating members 22 corresponding to the two conductive terminals 21 used to transmit a differential signal are interconnected, thereby increasing the coupling between the two conductive terminals 21 used to transmit a differential signal and reducing their external crosstalk.

[0044] 7. The capacitive section 2111 with a relatively large width is provided to adjust the characteristic impedance of the first connecting section 211. A portion of the capacitive section 2111 is entirely located within the insulating member 22, while another portion protrudes from the dielectric separation surface 223 to the outside of the insulating member 22. This is because, when adjusting impedance, to reduce return loss, the characteristic impedance values ​​of two adjacent positions should not differ too much. Therefore, in the portion of the capacitive section 2111 covered by the insulating member 22, the impedance is adjusted by adjusting two parameters: increasing the width of the conductive terminal 21 to increase capacitance and changing the signal transmission medium to increase the dielectric constant. In the portion of the capacitive section 2111 not covered by the insulating member 22, the impedance is adjusted by adjusting only one parameter: increasing the width of the conductive terminal 21 to increase capacitance. This allows for a purposeful transition in adjusting the characteristic impedance of two adjacent positions, thereby reducing return loss.

[0045] 8. Because of the groove 2144, the current transmitted in the conductive terminal 21 will generate capacitance in the groove 2144 when it passes through the groove 2144. The capacitance can act as an interference source and thus interfere with the conductive terminal 21. Therefore, the groove 2144 is filled with the filling part 225 of the insulating member 22. Since the dissipation factor of the insulating member 22 is greater than that of air, more magnetic and electric field lines generated by the capacitor will be lost in the filling part 225, thereby reducing interference to the conductive terminal 21. Furthermore, the filling part 225 can also prevent the conductive terminal 21 from moving in the third direction.

[0046] 9. The covering part 226 can ensure that the filling part 225 is stably located in the groove 2144. Furthermore, it can also reduce the characteristic impedance of the third section 2143, thereby reducing the insertion loss.

[0047] 10. Due to the arrangement of the first, second, third, and fourth differential signal pairs, the second and third differential signal pairs are relatively close, potentially causing crosstalk between them. Since they are connected to independent docking elements, this crosstalk is undesirable. Therefore, each conductive terminal 21 in the second differential signal pair protrudes towards the third differential signal pair to form an adjustment portion 2145, and the two adjustment portions 2145 in the second differential signal pair are aligned along the first direction. Similarly, each conductive terminal 21 in the third differential signal pair protrudes towards the second differential signal pair to form an adjustment portion 2145, and the two adjustment portions 2145 in the third differential signal pair are aligned along the first direction. This increases the coupling degree of both the second and third differential signal pairs, resulting in better performance against external crosstalk and reduced crosstalk between them.

[0048] 11. Due to the arrangement of the adjustment part 2145, the distance between the two conductive terminals 21 at the position of the adjustment part 2145 is reduced, and the impedance is also reduced accordingly.

[0049] 12. The two grooves 2144 are arranged opposite to each other. Therefore, along the second direction, at the position of the groove 2144, the distance between the two conductive terminals 21 increases, thereby increasing the capacitance. According to the formula... The increased capacitance reduces the characteristic impedance, thus reducing the characteristic impedance of the conductive terminal 21 at the groove 2144.

[0050] The above detailed description is only an illustration of a preferred embodiment of the present invention and is not intended to limit the patent scope of the present invention. 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: An insulating outer shell; Multiple terminal assemblies are arranged in a row along a first direction and housed within the insulating housing. Each terminal assembly includes at least one conductive terminal and an insulating member covering the outside of the conductive terminal. Each conductive terminal includes an adjustment section, which includes a first section, a second section connected to the first section, and a groove located on the side of the second section opposite to the first section. The insulating member includes a surface, a first section protruding from the surface to be located outside the insulating member and exposed to air, the dielectric constant of air being less than the dielectric constant of the insulating member, thereby reducing the capacitance of the first section; a recess is formed from the surface toward the groove, the recess is filled with air, and at least a portion of the second section is exposed in the recess; viewed along the first direction, at least a portion of the recess and at least a portion of the groove are aligned with each other in a second direction, the second direction being perpendicular to the first direction, such that in the second direction, the width of the portion of the adjusting section exposed to air is greater than the width of the portion covered by the insulating member.

2. The electrical connector as described in claim 1, characterized in that: Along a third direction, the two sides of the adjustment section are provided with opposing and spaced first end edges and second end edges. The insulating member includes a first side edge and a second side edge located on both sides of the recessed portion and arranged opposite to each other and spaced apart. The third direction is perpendicular to the first direction and the second direction. In the second direction, the first side edge and the second side edge are both located between the first end edge and the second end edge.

3. The electrical connector as described in claim 1, characterized in that: Along a third direction, the two sides of the adjustment section are provided with opposing and spaced first end edges and second end edges. The insulating member includes a first side edge and a second side edge located on both sides of the recess and provided opposing and spaced. The third direction is perpendicular to the first direction and the second direction. In the second direction, the first side edge is aligned with the first end edge, and the second side edge is aligned with the second end edge.

4. The electrical connector as described in claim 1, characterized in that: The conductive terminal further includes a first connecting segment and a second connecting segment. The adjustment section is located between the first connecting segment and the second connecting segment. Along the second direction, the adjustment section is formed to protrude relative to the first connecting segment and the second connecting segment, and the groove penetrates the adjustment section in a direction away from the protrusion of the adjustment section.

5. The electrical connector as described in claim 1, characterized in that: The first section is provided with a first stop surface, the insulating component is provided with a second stop surface, and the insulating shell is respectively provided with a first limiting surface and a second limiting surface that cooperate with the first stop surface and the second stop surface to stop.

6. The electrical connector as claimed in claim 1, characterized in that: Multiple conductive terminals in the multiple terminal assemblies are arranged in a row along the first direction, and two adjacent conductive terminals in a row are used to transmit a differential signal, and the recesses of the two insulating members corresponding to the two conductive terminals used to transmit the differential signal are interconnected.

7. The electrical connector as claimed in claim 1, characterized in that: The conductive terminal further includes a first connecting segment integrally connected to the adjustment section and a contact arm extending from the first connecting segment. The contact arm is conductive to a mating element, defining that the electrical connector and the mating element are interlocked along a third direction, which is perpendicular to the first direction and the second direction. The first connecting segment includes a capacitive section along the second direction, the width of which is greater than the width of the contact arm. The insulating member includes a dielectric separating surface, which is perpendicular to the third direction and divides the capacitive section into two parts along the third direction. One part is entirely located within the insulating member, and the other part protrudes from the dielectric separating surface to be located outside the insulating member.

8. The electrical connector as claimed in claim 1, characterized in that: The insulating element includes a filling portion located within the groove.

9. The electrical connector as claimed in claim 8, characterized in that: The insulating member further includes a covering portion located between the filling portion and the recessed portion, and the conductive terminal further includes a third segment located between the second segment and the groove, the covering portion covering the third segment.

10. The electrical connector as claimed in claim 1, characterized in that: Each terminal assembly includes four conductive terminals arranged along the second direction. The conductive terminals in the plurality of terminal assemblies are sequentially defined along the second direction as a first row of conductive terminals, a second row of conductive terminals, a third row of conductive terminals, and a fourth row of conductive terminals. Two adjacent conductive terminals in the first row form a first differential signal pair; two adjacent conductive terminals in the second row form a second differential signal pair; two adjacent conductive terminals in the third row form a third differential signal pair; and two adjacent conductive terminals in the fourth row form a fourth differential signal pair. Each conductive terminal in the second differential signal pair protrudes towards the third differential signal pair to form an adjustment portion. The two adjustment portions in the second differential signal pair are aligned along the first direction. Each of the conductive terminals in the third differential signal pair protrudes towards the second differential signal pair to form an adjustment portion, and the two adjustment portions in the third differential signal pair are aligned along the first direction.

11. The electrical connector as claimed in claim 1, characterized in that: Each of the terminal assemblies includes two conductive terminals arranged in a row in the second direction; two adjustment sections of the two conductive terminals are oppositely protruding and extend from each adjustment section to the other adjustment section to form an adjustment portion.

12. The electrical connector as claimed in claim 1, characterized in that: Each of the terminal assemblies includes two conductive terminals, each of which is recessed in the second direction to form a groove, and the two grooves are disposed opposite to each other along the second direction.

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