electrical connectors

Abstract

An electrical connector comprises: an insulating body; a plurality of terminal assemblies, the plurality of terminal assemblies being arranged in a row along a first direction and housed in the insulating body, each terminal assembly comprising at least one conductive terminal and an insulating member covering the outside of the conductive terminal, the conductive terminal comprising a contact segment, a capacitive segment extending from the contact segment, a connecting segment extending from the capacitive segment, and a conducting segment extending from the connecting segment, wherein in a second direction perpendicular to the first direction, the width of the capacitive segment is greater than the width of the contact segment, the contact segment protrudes from the insulating member along a third direction, the third direction being perpendicular to the first and second directions; at least a portion of the capacitive segment is disposed within the insulating member to serve as an impedance adjustment region, the impedance adjustment region comprising two first outer surfaces arranged opposite to each other along the second direction and two second outer surfaces arranged opposite to each other along the first direction, the two first outer surfaces and the two second outer surfaces being located within the insulating member.

Description

Technical field

[0001] The present invention relates to an electric connector, and in particular to an electric connector capable of optimizing the characteristic impedance of a signal terminal to reduce loss. [Background Technology]

[0002] Chinese patent application number CN201110333462.1 discloses an electrical connector comprising a lower terminal integrally formed with a first plastic block, the lower terminal including a protrusion exposed within a receiving cavity of a connector housing for receiving a mating component and entirely located outside the first plastic block;

[0003] The above structure has the following problems: the bump is designed for capacitance compensation to reduce the characteristic impedance value of the signal terminal. It is set at a position close to the contact portion of the lower terminal, so that during the signal transmission process, the impedance of the contact portion is relatively large due to the small width in the vertical direction. When the signal is transmitted through the contact portion to the bump, its impedance suddenly becomes smaller due to its large width in the vertical direction (compared with the contact portion). As a result, the impedance curve generated when the signal is transmitted between the contact portion and the bump fluctuates greatly. Although it can improve the insertion loss of the electrical connector, due to the large fluctuation of the impedance curve, unnecessary loss will still be generated when the signal is transmitted between the contact portion and the bump.

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

[0005] In view of the problems faced by the background technology, the invention aims to provide an electrical connector that optimizes the characteristic impedance of the signal terminal to reduce loss.

[0006] To achieve the above objectives, the present invention adopts the following technical means:

[0007] An electrical connector, characterized in that it comprises: an insulating body; a plurality of terminal assemblies, wherein the plurality of terminal assemblies are arranged in a row along a first direction and accommodated in the insulating body, each of the terminal assemblies comprises at least one conductive terminal and an insulating member covering the outside of the conductive terminal, the conductive terminal comprises a contact segment, a capacitive segment extending from the contact segment, a connecting segment extending from the capacitive segment, and a conducting segment extending from the connecting segment, in a second direction perpendicular to the first direction, the width of the capacitive segment is greater than the width of the contact segment, the contact segment protrudes from the insulating member along a third direction, the third direction being perpendicular to the first direction and the second direction; the capacitive segment At least a portion of the segment is arranged in the insulating member to serve as an impedance adjustment area, and the impedance adjustment area includes two first outer surfaces arranged opposite to each other along the second direction and two second outer surfaces arranged opposite to each other along the first direction, and the two first outer surfaces and the two second outer surfaces are located in the insulating member; the connecting segment includes a straight line segment, the length direction of the straight line segment is parallel to the third direction, and in the second direction, the width of the straight line segment is smaller than the width of the capacitive segment; a stop surface is formed from the end surface of the insulating member in a direction away from the third direction, and the insulating body stops the stop surface from moving along the third direction, and along the third direction, the impedance adjustment area exceeds the stop surface.

[0008] Furthermore, the connecting section includes a convex portion, which is formed to protrude from one end of the connecting section close to the capacitive section along the second direction, and at least a portion of the convex portion protrudes out of the insulating member in the second direction.

[0009] Furthermore, the connecting section is provided with a groove, the groove is arranged corresponding to the position of the convex portion, and the groove passes through the connecting section in a direction away from the convex portion.

[0010] Furthermore, the insulating member includes a filling portion, and the filling portion is located in the groove.

[0011] Furthermore, each of the terminal assemblies includes two conductive terminals, which are arranged in a row in the second direction; the two protrusions of the two conductive terminals are relatively protruding, and an adjustment portion is extended from each protrusion to the other protrusion, and the adjustment portion is located on the side of the protrusion close to the capacitive section; and a material strip, which integrally connects the two adjustment portions.

[0012] Furthermore, the convex portion is provided with an end surface, and the insulating body is respectively provided with a first limiting surface and a second limiting surface which cooperate with the end surface and the stopping surface to stop.

[0013] Furthermore, the insulating member includes a dielectric separation surface, the plane on which the dielectric separation surface is located is arranged perpendicular to the third direction, and the dielectric separation surface separates the convex portion into a first area and a second area, the first area is enclosed in the insulating member, the second area is exposed to the air, and the volume of the second area is larger than the volume of the first area.

[0014] Furthermore, a convex portion is formed extending along the third direction, the convex portion is located at one end of the connecting section close to the capacitive section, and is protruding relative to the connecting section, and at least a portion of the convex portion protrudes out of the insulating member; the connecting section is enclosed in the insulating member, and a groove is provided in the connecting section corresponding to the position of the convex portion. Along the third direction, the groove includes a first side surface and a second side surface arranged opposite to each other, and the convex portion extends beyond the first side surface in the direction of the capacitive section, and the convex portion extends beyond the second side surface in the direction away from the capacitive section.

[0015] Furthermore, a portion of the capacitive segment is buried in the insulating member as the impedance adjustment region, and another portion of the capacitive segment serves as a transition region, which protrudes out of the insulating member along the third direction.

[0016] Furthermore, the capacitive section is entirely buried in the insulating member as the impedance adjustment region.

[0017] Furthermore, the insulating body is provided with a plurality of terminal slots, one terminal slot is used to accommodate one contact segment, a partition is provided between every two terminal slots, and along the third direction, the partition is spaced from the insulating member to form an air slot, and at least part of the contact segment is exposed in the air slot.

[0018] Furthermore, each of the terminal assemblies includes two conductive terminals. In the second direction, the two conductive terminals are respectively recessed to form a groove, and the two grooves are arranged opposite to each other along the second direction.

[0019] Furthermore, each of the terminal assemblies includes two conductive terminals, and the two conductive terminals are arranged in a row in the second direction; the electrical connector includes a plurality of grounding assemblies, each of the grounding assemblies includes at least one grounding terminal and a grounding plate integrally connected to the grounding terminal, and the grounding terminal and the conductive terminal are arranged in a row in the first direction; in the second direction, two shielding plates are spaced apart from each other and arranged between the two conductive terminals; the grounding plate is provided with a through slot, and a portion of each shielding plate is accommodated in the through slot and is conductively connected to the grounding plate.

[0020] Furthermore, each of the terminal assemblies includes four conductive terminals arranged in a row along the second direction, which are defined as a first conductive terminal, a second conductive terminal, a third conductive terminal, and a fourth conductive terminal in sequence along the arrangement direction. The second conductive terminal and the third conductive terminal are respectively protruded relative to each other to form an adjustment portion, and the adjustment portion is located at one end of the connecting section close to the capacitive section.

[0021] Furthermore, each of the terminal assemblies includes four conductive terminals arranged along the second direction, and the multiple conductive terminals in the multiple terminal assemblies are defined 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 in sequence along the second direction. Two adjacent conductive terminals in the first row of conductive terminals are a first differential signal pair, two adjacent conductive terminals in the second row of conductive terminals are a second differential signal pair, two adjacent conductive terminals in the third row of conductive terminals are a third differential signal pair, and two adjacent conductive terminals in the fourth row of conductive terminals are a fourth differential signal pair. Each of the conductive terminals in the second differential signal pair protrudes toward 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; each of the conductive terminals in the third differential signal pair protrudes toward 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.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] An electrical connector, comprising: an insulating body, the insulating body including a receiving cavity; a plurality of terminal assemblies, the plurality of terminal assemblies being arranged in a row along a first direction and received in the receiving cavity, each of the terminal assemblies comprising at least one conductive terminal and an insulating member covering the outside of the conductive terminal, the conductive terminal comprising a contact segment, a capacitive segment extending from the contact segment, a connecting segment extending from the capacitive segment, and a conducting segment extending from the connecting segment, in a second direction perpendicular to the first direction, the width of the capacitive segment is greater than the width of the contact segment, the contact segment protrudes from the insulating member along a third direction, when a signal is transmitted in the conductive terminal, the contact segment protrudes from the insulating member and is exposed to the air, and the contact segment is narrow, so the characteristic impedance of the conductive terminal in the contact segment is higher, in order to lower the characteristic impedance of the contact segment, a capacitive segment with a larger width is provided, thereby increasing the capacitance of the conductive terminal in the capacitive segment, according to the formula It can be concluded that capacitance is inversely proportional to characteristic impedance, so the characteristic impedance of the capacitive segment is reduced; the third direction is perpendicular to the first direction and the second direction; at least a portion of the capacitive segment is arranged in the insulating member to serve as an impedance adjustment area, and the impedance adjustment area includes two first outer surfaces arranged opposite to each other along the second direction and two second outer surfaces arranged opposite to each other along the first direction, and the two first outer surfaces and the two second outer surfaces are located in the insulating member; further, the impedance adjustment ability of the capacitive segment is limited by only changing the width of the capacitive segment of the conductive terminal to reduce the impedance, so at least a portion of the capacitive segment (here referring to the impedance adjustment area) can also be enclosed in the insulating member. Since the dielectric constant of the insulating member is greater than the dielectric constant of air, according to the formula It can be seen that the dielectric constant ε is proportional to the capacitance C, so the capacitance of the capacitive segment further increases, thereby further reducing the characteristic impedance of the capacitive segment; due to the continuity of the signal, the contact segment will be affected by the lower impedance of the capacitive segment and will decrease accordingly, and the closer the contact segment is to the capacitive segment, the greater the impact will be, and the more the impedance will decrease. In summary, this solution achieves the effect of lowering the characteristic impedance of the contact segment by adjusting two parameters (increasing the width of the conductive terminal to serve as the capacitive segment and at least partially covering the capacitive segment with the insulating member).

Brief Description of the Drawings

[0024] Figure 1 is an exploded perspective view of the electrical connector according to the first embodiment of the present invention;

[0025] Figure 2 is a three-dimensional cross-sectional view of an electrical connector according to a first embodiment of the present invention;

[0026] Figure 3 This is a cross-sectional view of the first embodiment before the terminal assembly is assembled into the insulating body;

[0027] Figure 4 is a three-dimensional diagram of the transmission module in the first embodiment (with the insulating member hidden);

[0028] Figure 5 for Figure 4 Left view of;

[0029] Figure 6 is a cross-sectional view of the transmission module;

[0030] Figure 7 is a perspective view of a terminal assembly in the second embodiment;

[0031] Figure 8 for Figure 7 sectional view of .

[0032] Description of the accompanying drawings for the specific embodiments:

[0033] Electrical connector 100 Insulation body 1 Terminal slot 11 Fence 12 Air slot 13 First limiting surface 14 Second limiting surface 15 Terminal assembly 2 Conductive terminal 21 Contact section 211 Capacitive segment 212 Impedance adjustment area 2121 Transition Zone 2122 First outer surface 2121a Second outer surface 2121b Connecting section 213 Projection 2131 End surface 2131a First area 2131b Second area 2131c Groove 2132 First side 2132a Second side surface 2132b Adjustment Department 2133 Conducting section 214 Insulation 22 Filling portion 221 Medium separation surface 222 Stop surface 223 Strip 3 Grounding component 4 Ground terminal 41 Grounding lug 42 Through slot 421 Shielding sheet 43 Transmission module Q First row of conductive terminals 21A First conductive terminal 21a Second row of conductive terminals 21B Second conductive terminal 21b The third row of conductive terminals 21C The third conductive terminal 21c Fourth row of conductive terminals 21D Fourth conductive terminal 21d [Specific implementation method]

[0034] To facilitate a better understanding of the purpose, structure, features, and effects of the present invention, the present invention will be further described with reference to the accompanying drawings and specific embodiments.

[0035] like Figures 1 to 8 As shown, the electrical connector 100 of the present invention defines the first direction as the X-axis, the second direction as the Y-axis, and the third direction as the Z-axis.

[0036] like Figures 1 to 8 As shown, the electrical connector 100 includes an insulating body 1 and a plurality of terminal assemblies 2 arranged in a row along the first direction. The plurality of terminal assemblies 2 are accommodated in the insulating body 1 , and the insulating member 22 electrically isolates the plurality of terminal assemblies 2 .

[0037] like Figures 1 to 6 As shown, this is the first embodiment of the present invention, the insulating body 1 includes a plurality of terminal grooves 11, a first limiting surface 14, and a second limiting surface 15 staggered along the third direction with the first limiting surface 14, a partition 12 is provided between every two terminal grooves 11, and along the third direction, the partition 12 and the insulating member 22 are spaced apart to form an air groove 13.

[0038] like Figure 3 and Figure 6As shown, each of the terminal components 2 includes four conductive terminals 21 and an insulating member 22 injection-molded on the outside of the four conductive terminals 21. Of course, the conductive terminals 21 can also be provided with different numbers according to different needs; each of the conductive terminals 21 includes a contact segment 211, a capacitive segment 212 extending from the contact segment 211, a connecting segment 213 extending from the capacitive segment 212, and a conductive segment 214 extending from the connecting segment 213. The contact segment 211 is used to connect to a docking connector (not shown), and one of the contact segments 211 is correspondingly received in one of the terminal slots 11, and at least a portion of the contact segment 211 is exposed to the In the air slot 13, the conductive section 214 is used to conduct electricity with a circuit board (not shown). In the second direction, the width of the capacitive section 212 is greater than the width of the contact section 211, and the contact section 211 protrudes from the insulating member 22 along the third direction; the capacitive section 212 is entirely disposed within the insulating member 22 to serve as an impedance adjustment region 2121. The impedance adjustment region 2121 includes two first outer surfaces 2121a arranged opposite to each other along the second direction and two second outer surfaces 2121b arranged opposite to each other along the first direction. The two first outer surfaces 2121a and the two second outer surfaces 2121b are located within the insulating member 22.

[0039] like Figure 3 and Figure 4 As shown, the connecting section 213 includes a convex portion 2131 and a groove 2132. The convex portion 2131 is formed along the second direction from one end of the connecting section 213 close to the capacitive section 212. In other words, the convex portion 2131 extends along the third direction and is located at one end of the connecting section 213 close to the capacitive section 212 and is convex relative to the connecting section 213. The groove 2132 is arranged at a position corresponding to the convex portion 2131. In the second direction, at least a portion of the convex portion 2131 protrudes out of the insulating member 22. When the insulating member 22 is injection molded, the injection mold can clamp the convex portion 2131 so that The conductive terminal 21 is fixed, and the groove 2132 extends through the connecting section 213 in a direction away from the protrusion 2131. Along the third direction, the groove 2132 includes a first side surface 2132a and a second side surface 2132b opposite each other. The protrusion 2131 extends beyond the first side surface 2132a toward the capacitive section 212, and extends beyond the second side surface 2132b away from the capacitive section 212. In addition, along the second direction, the width of the capacitive section 212 is greater than, and in fact greater than, the width of the remaining portion of the connecting section 213 excluding the protrusion 2131.

[0040] like Figure 2 and Figure 3 As shown, the convex portion 2131 is further provided with an end surface 2131a; the insulating member 22 is provided with a filling portion 221, a dielectric separation surface 222 and a stop surface 223, the filling portion 221 is located in the groove 2132, thereby removing the air in the groove 2132, the plane where the dielectric separation surface 222 is located is perpendicular to the third direction, the stop surface 223 and the dielectric separation surface 222 are located in the same plane, and the dielectric separation surface 222 divides the convex portion 2131 into It is divided into a first area 2131b and a second area 2131c, the first area 2131b is enclosed in the insulating part 22, the second area 2131c is exposed to the air, and the volume of the second area 2131c is larger than the volume of the first area 2131b, the stopping surface 223 and the end face 2131a correspond to the first limiting surface 14 and the second limiting surface 15, and the stopping surface 223 and the end face 2131a are staggered along the third direction.

[0041] like Figure 3 、 Figure 4 and Figure 6 As shown, the four conductive terminals 21 in each of the terminal assemblies 2 are arranged in a row along the second direction, and the conductive terminals 21 are defined in sequence along the arrangement direction as a first conductive terminal 21a, a second conductive terminal 21b, a third conductive terminal 21c, and a fourth conductive terminal 21d, wherein the protrusions 2131 of the second conductive terminal 21b and the third conductive terminal 21c are relatively protruded, and an adjustment portion 2133 is formed from each protrusion 2131 to the other protrusion 2131, and the adjustment portion 2133 is located on the side of the protrusion 2131 close to the capacitive section 212; a material strip 3, the material strip 3 integrally connects the two adjustment portions 2133; the two grooves 2132 on the first conductive terminal 21a and the second conductive terminal 21b or on the third conductive terminal 21c and the fourth conductive terminal 21d are relatively arranged along the second direction.

[0042] like Figures 4 to 6As shown, the electrical connector 100 also includes a plurality of grounding components 4, one grounding component 4 and two terminal components 2 form a transmission module Q, wherein the two first conductive terminals 21a, the two second conductive terminals 21b, the two third conductive terminals 21c and the two fourth conductive terminals 21d in the two terminal components 2 respectively transmit a differential signal. In other words, the four conductive terminals 21 included in each terminal component 2 are arranged into four rows along the first direction, and are defined as the first row of conductive terminals 21A, the second row of conductive terminals 21B, the third row of conductive terminals 21C, the fourth row of conductive terminals 21d, and the fourth row of conductive terminals 21A. Terminal 21D, the adjacent two first conductive terminals 21a in the first row of conductive terminals 21A form a first differential signal pair, the adjacent two second conductive terminals 21b in the second row of conductive terminals 21B form a second differential signal pair, the adjacent two third conductive terminals 21c in the third row of conductive terminals 21C form a third differential signal pair, and the adjacent two fourth conductive terminals 21d in the fourth row of conductive terminals 21D form a fourth differential signal pair. The first differential signal pair and the second differential signal pair are connected to the same docking element of the docking connector, and the third differential signal pair and the fourth differential signal pair are connected to the same docking element of the docking connector. When the same docking element of the docking connector is docked, each of the conductive terminals in the second differential signal pair protrudes toward 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; each of the conductive terminals in the third differential signal pair protrudes toward 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. Due to the arrangement of the adjustment portion 2133, the coupling between the second differential signal pairs is larger, and the coupling between the third differential signal pairs is larger; the plurality of transmission modules Q are arranged along a first direction Arranged and accommodated in the insulating body 1, wherein each of the grounding components 4 includes at least one grounding terminal 41 and a grounding plate 42 integrally connected to the grounding terminal 41. The outer side of the grounding component 4 can be provided with an electrical isolation structure similar to the insulating member 22, of course, it can also be not provided. The grounding terminal 41 and the conductive terminal 21 are arranged in a row in the first direction; in the second direction, two shielding plates 43 are arranged at intervals between the two conductive terminals 21; the grounding plate 42 is provided with a through slot 421, and at least a portion of each shielding plate 43 is accommodated in the through slot 421 and is conductively connected to the grounding plate 42.

[0043] like Figures 7 and 8FIG. 2 is a second embodiment of the present invention. Different from the first embodiment, in the second embodiment, a portion of the capacitive segment 212 is used as the impedance adjustment region 2121, and the other portion is used as a transition region 2122, and the transition region 2122 protrudes from the insulating member 22 along the third direction. The other structures are the same as those of the first embodiment and will not be described again.

[0044] In summary, the electrical connector 100 and the manufacturing method thereof of the present invention have the following beneficial effects:

[0045] 1. An electrical connector 100, comprising: an insulating body 1, the insulating body 1 including a receiving cavity; a plurality of terminal assemblies 2, the plurality of terminal assemblies 2 being arranged in a row along a first direction and received in the receiving cavity, each of the terminal assemblies 2 including at least one conductive terminal 21 and an insulating member 22 covering the outer side of the conductive terminal 21, the conductive terminal 21 including a contact segment 211, a capacitive segment 212 extending from the contact segment 211, a connecting segment 213 extending from the capacitive segment 212, and a conductive segment 214 extending from the connecting segment 213, wherein the conductive terminal 21 includes a conductive segment 214 extending from the connecting segment 213, wherein the conductive segment 214 extends vertically from the conductive segment 211. In a second direction perpendicular to the first direction, the width of the capacitive segment 212 is greater than the width of the contact segment 211. The contact segment 211 protrudes from the insulating member 22 along a third direction. When a signal is transmitted in the conductive terminal 21, since the contact segment 211 protrudes from the insulating member 22 and is exposed to the air, and the contact segment 211 is narrow, the characteristic impedance of the conductive terminal 21 in the contact segment 211 is relatively high. In order to lower the characteristic impedance of the contact segment 211, a capacitive segment 212 with a larger width is provided, thereby increasing the capacitance of the conductive terminal 21 in the capacitive segment 212. According to the formula It can be concluded that capacitance is inversely proportional to characteristic impedance, so the characteristic impedance of the capacitive segment 212 is reduced; the third direction is perpendicular to the first direction and the second direction; at least a portion of the capacitive segment 212 is provided in the insulating member 22 to serve as an impedance adjustment region 2121, and the impedance adjustment region 2121 includes two first outer surfaces 2121a arranged opposite to each other along the second direction and two second outer surfaces 2121b arranged opposite to each other along the first direction, and the two first outer surfaces 2121a and the two second outer surfaces 2121b are located in the insulating member 22; further, the impedance adjustment capability of the capacitive segment 212 is limited by only changing the width of the capacitive segment 212 of the conductive terminal 21, so at least a portion of the capacitive segment 212 (here referring to the impedance adjustment region 2121) can also be enclosed in the insulating member 22. Since the dielectric constant of the insulating member 22 is greater than the dielectric constant of air, according to the formula It can be seen that the dielectric constant ε is proportional to the capacitance C. Therefore, the capacitance of the capacitive segment 212 further increases, thereby further reducing the characteristic impedance of the capacitive segment 212. Due to the continuity of the signal, the contact segment 211 is affected by the lower impedance of the capacitive segment 212 and is subsequently reduced. The closer the contact segment 211 is to the capacitive segment 212, the greater the impact is, and the greater the impedance decreases. In summary, this solution achieves the effect of lowering the characteristic impedance of the contact segment 211 by adjusting two parameters (increasing the width of the conductive terminal 21 to serve as the capacitive segment 212 and at least partially covering the capacitive segment 212 by the insulating member 22).

[0046] 2. The protrusion 2131 provided on the conductive terminal 21 actually widens the width of the conductive terminal 21 at the connecting section 213, thereby increasing the capacitance there, and reducing the impedance there. In order to further control the impedance from being excessively reduced, at least a portion of the protrusion 2131 is protruded from the insulating member 22. According to the formula It can be seen that the dielectric constant ε is proportional to the capacitance C. As the dielectric constant decreases, the capacitance decreases. Therefore, by reducing the dielectric constant of the transmission medium of at least part of the protrusion 2131 during signal transmission (the dielectric constant of the insulating part 22 is greater than the dielectric constant of air), the characteristic impedance of the part of the protrusion 2131 protruding from the insulating part 22 is increased, thereby controlling the characteristic impedance at the protrusion 2131 not to be excessively reduced.

[0047] 3. According to the formula (d is the length of the conductor available for signal transmission) It can be seen that the length d of the conductor available for signal transmission is proportional to the inductance L, and the conductive terminal 21 is provided with the groove 2132 at the position corresponding to the protrusion 2131, and the groove 2132 passes through the connecting section 213 in a direction away from the protrusion 2131, which actually increases the length of the protrusion 2131 available for signal transmission, thereby increasing the inductance at the protrusion 2131, thereby raising the characteristic impedance at the protrusion 2131.

[0048] 4. Since the conductive terminal 21 is provided with the groove 2132, the current transmitted in the conductive terminal 21 will generate capacitance in the groove 2132 when passing through the groove 2132. The capacitance can serve as an interference source and thus interfere with the conductive terminal 21. Therefore, the groove 2132 is filled with the filling portion 221 of the insulating member 22. Since the insulating member 22 is made of insulating plastic material, its dissipation factor is greater than the dissipation factor of air, and the magnetic lines of force and electric lines generated by the capacitor will be more lost in the filling portion 221, thereby reducing interference with the conductive terminal 21. Furthermore, the filling portion 221 can also prevent the conductive terminal 21 from moving along the third direction.

[0049] 5. The adjustment portion 2133 is provided on the protrusion 2131, so that the length of the strip 3 connected to the adjustment portion 2133 is shorter than the length of the strip 3 provided at other locations. From the perspective of cost and material utilization, the strip 3 is waste material that will eventually be removed, so minimizing the volume of the strip 3 is beneficial to controlling costs and increasing material utilization. Furthermore, due to the provision of the groove 2132, when the signal is transmitted between the connecting section 213, the protrusion 2131, and the capacitive section 212, the transmission direction through the protrusion 2131 will continuously change in a short period of time, which may cause signal attenuation. In other words, because the protrusion 2131 is provided with the groove 2132, the conductive terminal 21 actually "turns" at the location of the protrusion 2131, resulting in an increase in impedance at the "turning point". Disposing the adjustment portion 2133 on the side of the protrusion 2131 close to the capacitive section 212 increases the capacitance at the "turning point", thereby reducing its impedance and reducing signal attenuation.

[0050] 6. In addition to adjusting the characteristic impedance of the conductive terminal 21, the protrusion 2131 also has an end face 2131a that cooperates with the first limiting surface 14 of the insulating body 1 to limit the terminal assembly 2 in the insulating body 1. Furthermore, the stopping surface 223 of the insulating member 22 also cooperates with the second limiting surface 15 of the insulating body 1 to limit the terminal assembly 2 in the insulating body 1.

[0051] 7. The protrusion 2131 is clamped by the jig so that when the conductive terminal 21 is embedded and formed in the insulating member 22, the position of the conductive terminal 21 is guaranteed, and a relatively larger volume is better for clamping; the more the protrusion 2131 protrudes from the insulating member 22, the more the impedance increases, thereby balancing the characteristic impedance at the protrusion 2131 so that it does not decrease excessively, thereby achieving a better control effect.

[0052] 8. The convex portion 2131 extends beyond the first side surface 2132a toward the capacitive section 212, and the convex portion 2131 extends beyond the second side surface 2132b in a direction away from the capacitive section 212, so that the groove 2132 does not affect the capacitance of other parts except the convex portion 2131, thereby matching the impedance of the capacitive section 212 with the impedance of the convex portion 2131.

[0053] 9. In the impedance adjustment region 2121, the impedance of the contact segment 211 is lowered by increasing the width of the conductive terminal 21 to serve as the capacitive segment 212 and at least partially covering the capacitive segment 212 with the insulating member 22. In the transition region 2122, the impedance of the contact segment 211 is lowered by only increasing the width of the conductive terminal 21. When the signal is transmitted between the contact segment 211 and the connecting segment 213, the adjustment of different regions of the capacitive segment 212 is step-shaped, that is, in the transition region 2122, only the capacitance of the conductive terminal 21 is adjusted, and in the impedance adjustment region 2121, both the capacitance of the conductive terminal 21 and the transmission medium around the conductive terminal 21 are adjusted. In this way, the impedance change curve of the conductive terminal 21 at the contact segment 211 and the capacitive portion is relatively gentle, thereby reducing the return loss of the signal during transmission.

[0054] 10. Since the capacitive section 212 is entirely embedded in the insulating member 22 , the impedance of the entire capacitive section 212 is reduced to the maximum extent. Due to the continuity of the signal, the impedance of the contact section 211 can be reduced to the maximum extent.

[0055] 11. Since the insulating member 22 is made of insulating plastic material, the dissipation factor of the insulating member 22 is greater than the dissipation factor of air. Therefore, the signal loss is relatively large when the conductive terminal 21 is transmitted in the portion enclosed by the insulating member 22. In order to reduce the signal loss when the contact segment 211 is transmitted, an air slot 13 is provided so that at least a portion of the contact segment 211 is exposed in the air slot 13 on both sides along the first direction, so that this portion of the signal can be transmitted without loss in the air.

[0056] 12. The two grooves 2132 are arranged opposite to each other, so along the second direction, at the position of the groove 2132, the distance between the two conductive terminals 21 increases, thereby increasing the capacitance. According to the formula The increase in capacitance reduces the characteristic impedance, so the characteristic impedance of the conductive terminal 21 at the groove 2132 is reduced.

[0057] 13. The shielding plate 43 is connected to the grounding plate 42 to form a grounding shield between the two conductive terminals 21, further reducing the crosstalk between the two conductive terminals 21. Furthermore, it is worth mentioning that when the electrical connector 100 transmits signals at a frequency greater than 16 GHZ and the wavelength of the electromagnetic wave transmitted through the conductive terminal 21 is A, in the second direction, the two shielding plates 43 are spaced apart between the two conductive terminals 21, and the distance between the two shielding plates 43 is preferably A / 4. In this way, when the two conductive terminals 21 arranged in a row along the second direction radiate crosstalk with each other through the electromagnetic wave with a wavelength of A, the part of the electromagnetic wave with a wavelength A will be reflected between the shielding plates 43 after entering between the two shielding plates 43 with a spacing of A / 4, and will not overflow, thereby reducing the crosstalk between the two conductive terminals 21 in the second direction.

[0058] 14. The adjusting portion 2133 is used to widen the width of the connecting section 213 to lower the impedance of the portion of the connecting section 213 close to the capacitive section 212. Since the signal is continuous, the capacitive section 212 is also affected by the connecting section 213 to reduce impedance.

[0059] 15. Due to the arrangement relationship between the first differential signal pair, the second differential signal pair, the third differential signal pair, and the fourth differential signal pair, the second differential signal pair and the third differential signal pair are relatively close, resulting in potential crosstalk between the second differential signal pair and the third differential signal pair. Since they are respectively docked with independent docking components, such crosstalk is undesirable. Therefore, each of the conductive terminals in the second differential signal pair protrudes toward the third differential signal pair to form an adjustment portion 2133, and 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 toward the second differential signal pair to form an adjustment portion 2133, and the two adjustment portions in the third differential signal pair are aligned along the first direction, thereby increasing the coupling degree of the second differential signal pair and the coupling degree of the third differential signal pair, thereby improving their external crosstalk performance, and thus reducing the crosstalk between the second differential signal pair and the third differential signal pair.

[0060] The above detailed description is only an illustration of the preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Therefore, all equivalent technical changes made by using the description and illustrations of this invention are included in the patent scope of this invention.

Claims

1. An electrical connector, characterized in that: include: an insulating body; a plurality of terminal assemblies, the plurality of terminal assemblies being arranged in a row along a first direction and housed in the insulating body, each of the terminal assemblies comprising at least one conductive terminal and an insulating member covering an outer side of the conductive terminal, the conductive terminal comprising a contact segment, a capacitive segment extending from the contact segment, a connecting segment extending from the capacitive segment, and a conductive segment extending from the connecting segment, wherein in a second direction perpendicular to the first direction, the width of the capacitive segment is greater than the width of the contact segment, and the contact segment protrudes from the insulating member along a third direction perpendicular to the first and second directions; At least a portion of the capacitive section is disposed within the insulating member to serve as an impedance adjustment region, the impedance adjustment region comprising two first outer surfaces disposed opposite to each other along the second direction and two second outer surfaces disposed opposite to each other along the first direction, the two first outer surfaces and the two second outer surfaces being located within the insulating member; The connecting segment includes a straight segment, the length direction of the straight segment is parallel to the third direction, and in the second direction, the width of the straight segment is smaller than the width of the capacitive segment; A stop surface is formed from the end surface of the insulating member in a direction away from the third direction. The insulating body stops the stop surface from moving along the third direction. Along the third direction, the impedance adjustment region exceeds the stop surface.

2. The electrical connector according to claim 1, wherein: The connecting section includes a convex portion, which is formed to protrude from one end of the connecting section close to the capacitive section along the second direction. In the second direction, at least a portion of the convex portion protrudes out of the insulating member.

3. The electrical connector according to claim 2, wherein: The connecting section is provided with a groove, the groove is arranged corresponding to the position of the convex portion, and the groove penetrates the connecting section in a direction away from the convex portion.

4. The electrical connector according to claim 3, wherein: The insulating member includes a filling portion, and the filling portion is located in the groove.

5. The electrical connector according to claim 3, wherein: Each of the terminal assemblies includes two conductive terminals, which are arranged in a row in the second direction; the two protrusions of the two conductive terminals are relatively protruding, and an adjustment portion is extended from each protrusion to the other protrusion, and the adjustment portion is located on the side of the protrusion close to the capacitive section; and a material strip, which integrally connects the two adjustment portions.

6. The electrical connector according to claim 2, wherein: The protrusion is provided with an end surface, and the insulating body is respectively provided with a first limiting surface and a second limiting surface that cooperate with the end surface and the stopping surface to stop.

7. The electrical connector according to claim 2, wherein: The insulating member includes a dielectric separation surface, the plane on which the dielectric separation surface is located is arranged perpendicular to the third direction, and the dielectric separation surface separates the convex portion into a first area and a second area, the first area is enclosed in the insulating member, the second area is exposed to the air, and the volume of the second area is larger than the volume of the first area.

8. The electrical connector according to claim 1, wherein: A convex portion is formed extending along the third direction, the convex portion is located at one end of the connecting section close to the capacitive section, and is protruded relative to the connecting section, and at least a portion of the convex portion protrudes out of the insulating member; the connecting section is enclosed in the insulating member, and a groove is provided in the connecting section at a position corresponding to the convex portion, along the third direction, the groove includes a first side surface and a second side surface arranged opposite to each other, and the convex portion extends beyond the first side surface in the direction of the capacitive section, and the convex portion extends beyond the second side surface in a direction away from the capacitive section.

9. The electrical connector according to claim 1, wherein: A portion of the capacitive segment is buried in the insulating member as the impedance adjustment region, and another portion of the capacitive segment serves as a transition region, which protrudes out of the insulating member along the third direction.

10. The electrical connector according to claim 1, wherein: The capacitive section is entirely buried in the insulating member as the impedance adjustment region.

11. The electrical connector according to claim 1, wherein: The insulating body is provided with a plurality of terminal slots, one terminal slot is used to accommodate one contact segment, a partition is provided between every two terminal slots, and along the third direction, the partition is spaced apart from the insulating member to form an air slot, and at least part of the contact segment is exposed in the air slot.

12. The electrical connector according to claim 1, wherein: Each of the terminal assemblies includes two conductive terminals. In the second direction, the two conductive terminals are respectively recessed to form a groove, and the two grooves are arranged opposite to each other along the second direction.

13. The electrical connector according to claim 1, wherein: Each of the terminal assemblies includes two conductive terminals, and the two conductive terminals are arranged in a row in the second direction; the electrical connector includes a plurality of grounding assemblies, each of the grounding assemblies includes at least one grounding terminal and a grounding plate integrally connected to the grounding terminal, and the grounding terminal and the conductive terminal are arranged in a row in the first direction; in the second direction, two shielding plates are arranged between the two conductive terminals at intervals; the grounding plate is provided with a through slot, and each shielding plate is accommodated in the through slot and is conductively connected to the grounding plate.

14. The electrical connector according to claim 1, wherein: Each of the terminal assemblies includes four conductive terminals arranged in a row along the second direction, and the four conductive terminals are defined as a first conductive terminal, a second conductive terminal, a third conductive terminal, and a fourth conductive terminal in sequence along the second direction. The second conductive terminal and the third conductive terminal are respectively protruded relative to each other to form an adjustment portion, and the adjustment portion is located at one end of the connecting section close to the capacitive section.

15. The electrical connector according to claim 1, wherein: Each of the terminal assemblies includes four conductive terminals arranged along the second direction, and the plurality of 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 of conductive terminals form a first differential signal pair, two adjacent conductive terminals in the second row of conductive terminals form a second differential signal pair, two adjacent conductive terminals in the third row of conductive terminals form a third differential signal pair, and two adjacent conductive terminals in the fourth row of conductive terminals form a fourth differential signal pair. Each of the conductive terminals in the second differential signal pair protrudes toward the third differential signal pair to form an adjustment portion, and two of the 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 toward 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.

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