Connector assembly and socket connector

Abstract

The utility model discloses a connector assembly and slot connector are used to with the mating piece plug -in cooperation, include: insulating body and locate the multiple signal terminal of insulating body, insulating body includes two opposite side walls and the slot between two side walls, insulating body is equipped with the interfacing surface, and the slot penetrates the interfacing surface, and the side wall has the inner wall surface and the outer wall surface, and the outer wall surface of side wall is equipped with multiple recessed grooves and strengthens the convex rib, and the convex rib is set out to the recessed groove groove bottom relatively, and the elastic arm section of signal terminal is in the diametrically opposed one recessed groove, and the recessed groove opposite signal terminal is defined as the first recessed groove, and from the first recessed groove end close to the interfacing surface continues recessing to form the window inward, and the window is communicated with the slot, and the contact section of signal terminal is exposed outward through the window, and the length of strengthening convex rib, the length of first recessed groove all are greater than the length of window, and the recessed groove is set with strengthening the convex rib and is favorable to the improvement of connector assembly's resonance, and makes up the structural strength of side wall simultaneously.

Description

[Technical Field]

[0001] This utility model relates to the field of electrical connectors, and more particularly to a connector assembly for optimizing crosstalk. [Background Technology]

[0002] In the field of connectors, an electrical connector is disclosed for mating with an electronic component. It includes an insulating body and a plurality of conductive terminals disposed within the insulating body. The insulating body has a slot for inserting the electronic component. The slot has a slot bottom surface and two side walls located on the front and rear sides of the slot. A receiving cavity is recessed upward at the lower end of the insulating body. The insulating body also includes a plurality of terminal slots recessed further upward from the receiving cavity, penetrating the slot bottom surface and extending to the two side walls. The plurality of conductive terminals are accommodated in the plurality of terminal slots. The side walls have a plurality of through openings corresponding to the contact portions of the plurality of conductive terminals. The openings connect the slot to the outside. The openings only correspond to the contact portion and expose it, without extending to the elastic arm of the conductive terminal. With this configuration, the connector has poor anti-crosstalk performance at high frequencies at the elastic arm, which can lead to abnormal spikes in the crosstalk waveform, resulting in resonance and ultimately affecting the integrity of signal transmission.

[0003] Therefore, it is necessary to provide a connector assembly and a slot connector for optimizing crosstalk to overcome the above-mentioned defects. [Utility Model Content]

[0004] In view of the problems in the background art, the purpose of this utility model is to provide a connector assembly and a slot connector for optimizing crosstalk.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: A connector assembly for mating with a mating member along a mating direction, comprising: an insulating body extending longitudinally, including two opposing sidewalls in a transverse direction and at least one slot located between the two sidewalls; the insulating body having a mating surface; the slot penetrating the mating surface in the mating direction; the sidewalls having an inner wall surface and an outer wall surface opposite each other in the transverse direction, the inner wall surface facing the slot; and the longitudinal direction, transverse direction, and mating direction being perpendicular to each other; and a plurality of conductive terminals disposed on the insulating body, including a plurality of signal terminals and a plurality of ground terminals; at least some of the conductive terminals including a fixed section, a spring arm section, a contact section, and a conductive section; the spring arm section extending from the fixed section toward the mating surface; the contact section connecting to the end of the spring arm section near the mating surface and exposed in the slot; and the conductive section extending from the fixed section away from the mating surface in the mating direction. The end extends and protrudes from the insulating body; wherein, a plurality of conductive terminals are provided at least one of two side walls, at least one side wall is provided with a plurality of recessed grooves arranged in the longitudinal direction and at least one reinforcing rib alternately arranged with the plurality of recessed grooves, the recessed grooves are formed by recessing inward in the transverse direction from the corresponding outer wall surface, the reinforcing rib is provided by protruding relative to the bottom of the recessed groove, and continues to recess inward from the bottom of the recessed groove to form at least one window, the window is connected to the slot, the contact section of the signal terminal and the contact section of the grounding terminal are respectively exposed outward through the window, at least part of the spring arm section of the signal terminal and the spring arm section of the grounding terminal are respectively provided in the transverse direction corresponding to the recessed groove, the reinforcing rib extends in the longitudinal direction from one side of the window along the insertion direction in a direction away from the mating surface, and in the insertion direction, the length of the reinforcing rib and the length of the recessed groove are both greater than the length of the window, the recessed groove is provided beyond the window relative to the corresponding window in a direction away from the mating surface.

[0006] Furthermore, at least one inner wall surface is recessed with a plurality of terminal slots, each terminal slot corresponding to accommodate at least one conductive terminal, and two adjacent terminal slots are separated by a partition, wherein each recessed slot is directly opposite to at least one terminal slot in the lateral direction, and each reinforcing rib is directly opposite to one of the partitions in the lateral direction.

[0007] Furthermore, the maximum recess depth of the terminal slot in the lateral direction corresponding to the slot position is greater than the recess depth of the recessed groove in the lateral direction.

[0008] Furthermore, multiple signal terminals are arranged in pairs, with adjacent signal terminal pairs separated by at least one ground terminal. The paired signal terminals are used to transmit differential signals. Each pair of signal terminals is partially housed in the same terminal slot. A recessed slot that is directly opposite the signal terminal in the lateral direction is defined as a first recessed slot, and a recessed slot that is directly opposite the ground terminal in the lateral direction is defined as a second recessed slot. A first recessed slot corresponds to a pair of signal terminals in the lateral direction, and a second recessed slot corresponds to a ground terminal in the lateral direction.

[0009] Furthermore, in the transverse direction, the plastic thickness of the sidewall inside the recessed groove is 0.2-0.4 mm.

[0010] Furthermore, both sidewalls are provided with multiple recessed grooves and multiple reinforcing ribs. The two sidewalls are defined as a first sidewall and a second sidewall. In the transverse direction, the thickness of the first sidewall is greater than the thickness of the second sidewall, and the recessed groove of the first sidewall is greater than the recessed groove of the second sidewall.

[0011] Furthermore, the sidewall also includes multiple longitudinal ribs extending in the longitudinal direction. The longitudinal ribs are located on the side of the window away from the mating surface along the insertion direction, and the distance between the longitudinal ribs and the window is set. Each longitudinal rib protrudes from the bottom surface of the recessed groove and connects to two adjacent reinforcing ribs.

[0012] Furthermore, the connector assembly also includes at least one terminal block, which covers the fixed section of a plurality of conductive terminals. The terminal block is located on the side of the recess away from the mating surface along the insertion direction, and the terminal block is offset from the recess in the lateral direction.

[0013] Furthermore, one of the sidewalls also includes a positioning groove formed by recessing from the outer side to the inner side. The positioning groove penetrates the mating surface in the insertion direction for insertion and mating with the mating part. A reinforcing rib is provided between any two adjacent recesses, and multiple recesses and multiple reinforcing ribs are provided on opposite sides of the positioning groove along the longitudinal direction.

[0014] Furthermore, the depth of the positioning groove is equal to the depth of the recessed groove.

[0015] Furthermore, the connector assembly also includes a metal housing fitted over the insulating body. The metal housing includes two side plates disposed opposite each other in the lateral direction. One of the side plates is at least partially spaced from a side wall with a corresponding positioning recess to form a receiving cavity. The receiving cavity communicates with the positioning recess in the lateral direction and is used to allow the mating parts to be inserted and engaged.

[0016] Furthermore, both sidewalls are provided with positioning recesses, multiple recessed grooves, and multiple reinforcing ribs. The two side plates of the metal shell correspond one-to-one with the two sidewalls, and each side plate is at least partially spaced from the corresponding sidewall to form a receiving cavity.

[0017] Furthermore, each end of the insulating body along the longitudinal direction is provided with a mounting base, each mounting base having a through mounting hole in the insertion direction, and the metal housing is provided with a mounting piece corresponding to each mounting base, the mounting piece having a through hole corresponding to the mounting hole; the connector assembly also includes a plurality of fasteners, the fasteners passing through the through holes and mounting holes to fix the metal housing and the insulating body on a circuit board.

[0018] Furthermore, the connector assembly includes multiple slots, including at least one signal slot and one power slot spaced apart in the longitudinal direction. Multiple conductive terminals are disposed in the signal slots. On the mating side, the power slots protrude from the signal slots in the insertion direction. The connector assembly also includes multiple power terminals and a socket. The multiple power terminals are housed in the power slots and inserted into the socket. Each power terminal has a solder portion, and the side of the solder portion facing away from the power slot is exposed in the socket. The connector assembly also includes multiple signal cables and multiple power cables. The multiple signal cables are connected to the conductive sections of the multiple signal terminals, and the multiple power cables are connected to the solder portions of the multiple power terminals. The connection between the power cables and the solder portions is located on the socket.

[0019] This utility model also discloses a slot connector, which is inserted and mated with a mating member along a mating direction, comprising: an insulating body extending in a longitudinal direction, including two opposing sidewalls in a transverse direction and at least one slot located between the two sidewalls, the insulating body having a mating surface, the slot penetrating the mating surface in the mating direction, the sidewalls having an inner wall surface and an outer wall surface disposed opposite each other in the transverse direction, the inner wall surface being disposed facing the slot, and the longitudinal direction, transverse direction and mating direction being perpendicular to each other; a plurality of conductive terminals, including a plurality of signal terminals and a plurality of ground terminals, at least some of the conductive terminals including a fixed section, a spring arm section, a contact section and a conductive section, the spring arm section extending from the fixed section toward the mating surface, the contact section connecting to the end of the spring arm section near the mating surface and exposed in the slot, and the conductive section extending from the fixed section toward the end away from the mating surface in the mating direction and extending out of the insulating body; The sidewalls have multiple conductive terminals located on at least one of two sidewalls. The outer surface of at least one sidewall has multiple recessed grooves arranged in the longitudinal direction and multiple reinforcing ribs alternating with the recessed grooves. The reinforcing ribs protrude from the bottom of the recessed grooves. The recessed grooves and reinforcing ribs extend in the insertion direction. The recessed grooves are connected to at least one of the signal terminals and at least one of the ground terminals in the transverse direction, with a contact section and a spring arm section. The recessed grooves are at least partially separated from the corresponding signal terminals and from the corresponding ground terminals by insulating material. The inner surface of the sidewalls has multiple terminal slots recessed, each terminal slot corresponding to at least one conductive terminal. Adjacent terminal slots are separated by a partition. Each recessed groove is directly opposite at least one terminal slot in the transverse direction, and each reinforcing rib is directly opposite one of the partitions in the transverse direction.

[0020] Furthermore, at least one window is formed by continuing to recess inward from the bottom of at least part of the recessed groove. The window is connected to the slot and is located at one end of the recessed groove near the mating surface along the insertion direction. The contact section of at least part of the conductive terminal is exposed outward through the corresponding window. In the insertion direction, the length of the reinforcing rib and the recessed groove are both greater than the length of the window. The recessed groove extends beyond the window relative to the corresponding window on the side away from the mating surface.

[0021] This invention alters the dielectric distribution around the spring-loaded segments of the signal and ground terminals by creating recessed grooves and reinforcing ribs on the outer wall surface of the sidewall. Specifically, due to these features, the decrease in self-capacitance (also called diagonal capacitance) generated by the spring-loaded segments of the ground and signal terminals is greater than the decrease in mutual capacitance generated by the signal and ground terminals. Therefore, the mutual capacitance C... mL and self-content C LThe ratio thus increases, thereby offsetting more inductive coupling, due to the long-range FEXT and mutual capacitance C. mL Self-Content C L Mutual inductance L mL , self-perception L L These factors are related, more specifically, the difference between the far string FEXT and the two ratios that include the above factors. This difference is directly proportional to the signal strength, so the reduction in this difference leads to a corresponding decrease in the distance between the two ends, thereby improving the SI performance of the electrical connector. The reinforcement ribs not only compensate for the structural strength of the sidewalls but also prevent the sidewalls from warping due to heat. [Attached Image Description]

[0022] Figure 1 This is a perspective view of the connector assembly in the first embodiment;

[0023] Figure 2 for Figure 1 Exploded view of the connector assembly:

[0024] Figure 3 for Figure 1 3D view of the center slot connector;

[0025] Figure 4 for Figure 3 A 3D view of the hidden metal casing;

[0026] Figure 5 for Figure 4 A magnified view of a section at point A in the middle;

[0027] Figure 6 for Figure 4 Cross-sectional view along the BB section line;

[0028] Figure 7 for Figure 4 Top view in the middle;

[0029] Figure 8 for Figure 7 Cross-sectional view along the CC section line;

[0030] Figure 9 for Figure 7 Cross-sectional view along the DD section line;

[0031] Figure 10 for Figure 7 A three-dimensional cross-sectional view along the EE section line;

[0032] Figure 11 for Figure 4 The image shown is a partially enlarged 3D view of the insulating body.

[0033] Figure 12 for Figure 2A 3D view of the first terminal module;

[0034] Figure 13 for Figure 2 A 3D view of the second terminal module;

[0035] Figure 14 This is a perspective view showing only the insulating body in the second embodiment;

[0036] Figure 15 for Figure 14 A magnified view of a section at point F.

[0037] Explanation of icon numbers:

[0038]

[0039]

Detailed Implementation Methods

[0040] To facilitate a better understanding of the purpose, structure, features, and effects of this utility model, the present utility model will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0041] like Figure 1 and Figure 2 As shown, the connector assembly of this utility model includes a slot connector 100 and multiple signal cables 8 and multiple power cables 9 connected to the slot connector 100. The slot connector 100 is defined with a longitudinal direction, a transverse direction Y, and a insertion direction Z. The longitudinal direction, transverse direction Y, and insertion direction Z are perpendicular to each other. For ease of understanding and description, in a specific embodiment, the longitudinal direction is defined as the left-right direction of the slot connector 100, the transverse direction Y is the front-back direction of the slot connector 100, and the insertion direction Z is the up-down direction of the slot connector 100. In other embodiments, the specific orientations of the longitudinal direction, transverse direction Y, and insertion direction Z can be defined according to the specific use of the slot connector 100.

[0042] like Figure 2 and Figure 3 As shown, the slot connector 100 of this utility model includes an insulating body 1, a plurality of first terminal modules M, a second terminal module P, and a metal shell 6. The plurality of first terminal modules M and the second terminal module P are all disposed on the insulating body 1 for electrically connecting a mating member in the insertion direction Z. The metal shell 6 is sleeved on the outside of the insulating body 1. The mating member is a mating connector with a tongue plate that mates with it, or it can be a card. Of course, in other embodiments, if a card edge connector is used as an example, the mating member is an electronic card that mates with it. No specific limitation is made here; the choice can be made according to the actual situation.

[0043] like Figure 4 and Figure 5 As shown, the insulating body 1 is made of insulating material and extends along the longitudinal direction X. The insulating body 1 includes a mating surface 11, two opposing sidewalls 13 in the transverse direction Y, and at least one slot 12 located between the two sidewalls 13. The slot 12 penetrates the mating surface 11 in the insertion direction Z and is used to receive the mating component. Specifically, the mating surface 11 is stepped, and multiple slots 12 are provided, including two signal slots 121 spaced apart along the longitudinal direction and a power slot 122. The two signal slots 121 are adjacent but separated along the longitudinal direction X, and the power slot 122 is located at one end of the two signal slots 121 in the longitudinal direction X. Specifically, the power slot 122 penetrates the mating surface 11 along the insertion direction Z, and on one side of the mating surface 11, the power slot 122 protrudes from the signal slot 121 along the insertion direction Z.

[0044] like Figure 5 , Figure 8 and Figure 9 As shown, each sidewall 13 has an inner wall surface 13a and an outer wall surface 13b disposed opposite each other in the transverse direction Y. The inner wall surface 13a faces the slot 12. At least one sidewall 13 is provided with a plurality of recessed grooves 131 arranged in the longitudinal direction X and at least one reinforcing rib 132 alternately arranged with the plurality of recessed grooves 131. The recessed grooves 131 are formed recessed inward from the corresponding outer wall surface 13b in the transverse direction Y. The reinforcing rib 132 protrudes from the bottom of the recessed grooves 131. Each recessed groove 131 and each reinforcing rib 132 extends in the insertion direction Z. It can be understood that the recessed grooves 131 and the reinforcing ribs 132 can cover the entire outer surface of the sidewall 13 in the longitudinal direction X, or they can be distributed in a part of the sidewall 13. In this embodiment, specifically, both sidewalls 13 are provided with a plurality of recessed grooves 131 arranged in the longitudinal direction X and a plurality of reinforcing ribs 132 alternately arranged with the recessed grooves 131. The recessed grooves 131 and reinforcing ribs 132 are only provided at the positions of the sidewalls 13 corresponding to the signal slots 121. No recessed grooves 131 and reinforcing ribs 132 are provided on the outside of the power slots 122.

[0045] like Figure 4 , Figure 5 and Figure 6As shown, at least one of the sidewalls 13 also includes a positioning groove 134 formed by recessing from the outer side to the inner side. The positioning groove 134 penetrates the mating surface 11 in the insertion direction Z for insertion and mating with the mating parts. A reinforcing rib 132 is provided between any two adjacent recesses 131. Multiple recesses 131 and multiple reinforcing ribs 132 are provided on opposite sides of the positioning groove 134 along the longitudinal direction. The depth of the positioning groove 134 is equal to the depth of the recessed groove 131. Specifically, each sidewall 13 is provided with two positioning grooves 134 corresponding to two signal slots 121. On both sides of each positioning groove 134 along the longitudinal direction X, there are multiple recessed grooves 131 and multiple reinforcing ribs 132. That is, no recessed grooves 131 and reinforcing ribs 132 are provided at the position of the positioning groove 134. In other embodiments, each of the two sidewalls 13 may be provided with a positioning groove 134, but only one of the two sidewalls 13 may be provided with a positioning groove 134. There is no specific limitation here, and it can be freely selected according to different connectors.

[0046] like Figure 6 , Figure 9 and Figure 10 As shown, at least one sidewall 13 has a plurality of terminal slots 135 recessed on its inner wall surface 13a. Adjacent terminal slots 135 are separated by a partition 136. On the same side of the slot 12, each recess 131 is directly opposite to at least one terminal slot 135 in the lateral direction Y. That is, each recess 131 can be directly opposite one terminal slot 135, or two or more terminal slots 135 in the lateral direction Y; this is not limited here. Specifically, each recess 131 is directly opposite one terminal slot 135 in the lateral direction Y. This arrangement helps to strengthen the structural strength of the sidewall 13. The maximum recess depth of the terminal slot 135 in the lateral direction Y corresponding to the position of the slot 12 is greater than the recess depth of the recess 131 in the lateral direction Y. Each reinforcing rib 132 is directly opposite one of the partitions 136 in the lateral direction Y. Specifically, in this embodiment, each sidewall 13 has a plurality of terminal slots 135 recessed on its inner wall surface 13a.

[0047] like Figure 9 and Figure 11As shown, the bottom of each recessed groove 131 is recessed inward to form a window 133. The window 133 is connected to the signal slot 121. Each reinforcing rib 132 extends from one side of the window 133 in the longitudinal direction X along the insertion direction Z in a direction away from the mating surface 11. In the insertion direction Z, the length of the reinforcing rib 132 and the length of the recessed groove 131 are both greater than the length of the window 133. Specifically, the window 133 is located on the side of the recessed groove 131 closer to the mating surface 11. Thus, the recessed groove 131 and the corresponding conductive terminal 2 are partially separated by insulating material. In other embodiments, the recessed groove 131 may not have a window 133. The recessed groove 131 and the corresponding conductive terminal 2 are separated by an insulating material. That is, the signal slot 121 and the recessed groove 131 are not connected in the lateral direction Y. In another embodiment, at least some of the recessed grooves 131 may be recessed to form a plurality of windows 133. The recessed groove 131 may be provided in the lateral direction Y to correspond to a plurality of terminal slots 135.

[0048] like Figure 7 and Figure 8 As shown, in this embodiment, the two sidewalls 13 are defined as a first sidewall and a second sidewall. The thickness of the first sidewall 13 is greater than the thickness of the second sidewall 13. In the transverse direction Y, the recess depth of the groove 131 of the first sidewall 13 is greater than the recess depth of the groove 131 of the second sidewall 13. The plastic thickness corresponding to the inner side of the first sidewall 13 at the groove 131 is equal to the plastic thickness corresponding to the inner side of the second sidewall 13 at the groove 131.

[0049] like Figure 9 As shown, specifically, in the transverse direction Y, the plastic thickness d inside the recessed groove 131 of the sidewall 13 is 0.2-0.4 mm. Within this range, it will not affect the injection molding strength of the sidewall 13. Specifically, the thickness is 0.25 mm.

[0050] like Figure 14 and Figure 15 As shown, in other embodiments, the sidewall 13 also includes a plurality of longitudinal ribs 137 extending along the longitudinal direction X. The longitudinal ribs 137 are located on the side of the window 133 away from the mating surface 11 along the insertion direction Z, and the longitudinal ribs are spaced apart from the window 133. Each longitudinal rib 137 protrudes from the bottom surface of the recessed groove 131 and connects to two adjacent reinforcing ribs 132. With this arrangement, the longitudinal ribs 137 pull the two adjacent reinforcing ribs 132 in the longitudinal direction X, which helps to further strengthen the structural strength of the sidewall 13 and prevent the sidewall 13 from warping due to heat.

[0051] like Figure 2 , Figure 9 and Figure 12As shown, each first terminal module M includes multiple conductive terminals 2 and a terminal base 3. The multiple conductive terminals 2 are embedded in the terminal base 3. The conductive terminals 2 are made of metal, and the terminal base 3 is made of insulating material. Specifically, there are four first terminal modules M. The two terminal bases 3 of two adjacent first terminal modules M in the lateral direction Y are mutually concave and convex to assemble the two first terminal modules M together and install them together to the insulating body 1. Each signal slot 121 is provided with two first terminal modules M, and the multiple conductive terminals 2 of the two first terminal modules M are distributed on the two side walls 13 corresponding to the signal slot 121.

[0052] like Figure 6 and Figure 10 As shown, the plurality of conductive terminals 2 include a plurality of signal terminals 2S and a plurality of ground terminals 2G. The plurality of signal terminals 2S are arranged in pairs and are used to transmit differential signals. At least one ground terminal 2G is arranged on one side of the pair of signal terminals 2S in the longitudinal direction X. That is, one ground terminal 2G can be arranged between two adjacent pairs of signal terminals 2S, or two or more ground terminals 2G can be arranged. In this embodiment, the signal terminals 2S and ground terminals 2G are arranged in the order GSSGSSG. Each pair of signal terminals 2S is partially housed in the same terminal slot 135, and each ground terminal 2G is partially housed in a terminal slot 135. Specifically, the recessed groove 131 directly opposite the signal terminal 2S in the transverse direction Y is defined as the first recessed groove 131a, and the recessed groove 131 directly opposite the ground terminal 2G in the transverse direction Y is defined as the second recessed groove 131b. The width of the first recessed groove 131a in the longitudinal direction X is greater than the width of the second recessed groove 131b in the longitudinal direction X.

[0053] like Figure 9 and Figure 12 As shown, at least a portion of the conductive terminal 2 includes a fixed section 21, a spring arm section 22, a conductive section 23, and a contact section 24. The fixed section 21 is covered by the terminal block 3. The spring arm section 22 extends upward from the fixed section 21 and connects to the contact section 24. The conductive section 23 extends downward from the fixed section 21 out of the signal slot 121. The contact sections 24 of the signal terminal 2S and the ground terminal 2G are exposed outward through corresponding windows 133. The spring arm section 22 of the signal terminal 2S corresponds at least partially to a first recessed groove 131a in the lateral direction Y, and the spring arm section 22 of the ground terminal 2G corresponds at least partially to a second recessed groove 131b in the lateral direction. Specifically, each signal terminal 2S and each ground terminal 2G includes a fixed section 21, a spring arm section 22, a conductive section 23, and a contact section 24. However, in other embodiments, the tail end of the ground terminal 2G is connected as a single unit, thus excluding the separate conductive section 23.

[0054] like Figure 9 and Figure 12 As shown, each terminal block 3 includes a covering portion 31 and a supporting portion 32. The covering portion 31 protrudes relative to the supporting portion 32 in the transverse direction Y. The fixing sections 21 of multiple conductive terminals 2 are embedded in the covering portion 31. Specifically, the welding portion 41 is a straight section. The welding portion 41 is supported by the supporting portion 32 and is exposed on the side away from the other first terminal module M in the transverse direction Y. The terminal block 3 is located on the side of the recessed groove 131 away from the mating surface 11 in the insertion direction Z, and the terminal block 3 is offset from the recessed groove 131 in the transverse direction Y. This arrangement avoids the terminal block 3 being directly fixed to the position of the recessed groove 131, which could cause the recessed groove 131 to crack under stress.

[0055] like Figure 2 and Figure 13 As shown, the second terminal module P includes multiple power terminals 4 and a connector 5. The power terminals 4 are distributed on two side walls 13 and are all inserted into the connector 5. The power terminals 4 are housed in a power slot 122 and inserted into the connector 5. Each power terminal 4 has a solder part 41, and the side of the solder part 41 facing away from the power slot 122 is exposed on the connector 5. The second terminal module P also includes multiple low-speed signal terminals (unlabeled), which are located on both sides of the power slot 122.

[0056] like Figure 1 and Figure 2 As shown, the insulating body 1 has a mounting base 14 protruding from both ends along the longitudinal direction X. Each mounting base 14 has a mounting hole 141 that passes through along the insertion direction Z. The metal shell 6 is sleeved on the outside of the insulating body 1. The metal shell 6 has a mounting piece 62 corresponding to each mounting base 14. The mounting piece 62 has a through hole 621 corresponding to the mounting hole 141.

[0057] like Figure 2 and Figure 3 As shown, the connector assembly also includes a plurality of fasteners 7, each fastener 7 passing through a through hole 621 and a mounting hole 141 to fix the metal housing 6 and the insulating body 1 onto a circuit board 200. The metal housing 6 includes two side plates 61 disposed opposite each other in the transverse direction Y. At least one side plate 61 is at least partially spaced from a side wall 13 with a corresponding positioning groove 134 to form a receiving cavity 63. The receiving cavity 63 communicates with the corresponding positioning groove 134 in the transverse direction Y and is used to allow the mating parts to be inserted and engaged. Specifically, each side plate 61 has two receiving cavities 63 between it and the corresponding side wall 13, that is, each side wall 13 has two positioning grooves 134, and each side plate 61 has two receiving cavities 63 corresponding to the two positioning grooves 134 of each side wall 13, so the two side walls 13 have four receiving cavities 63.

[0058] like Figure 1 and Figure 2 As shown, multiple signal cables 8 are connected to the conductive sections 23 of multiple signal terminals 2S, and the connection position of the first signal cable 8 and the conductive section 23 of the signal terminal 2S is located on the support part 32 of the terminal block 3. Multiple power cables 9 are connected to the soldering parts 41 of multiple power terminals 4, and the connection point of the power cables 9 and the soldering parts 41 is located on the plug socket 5.

[0059] The beneficial effects of this utility model are as follows:

[0060] 1. This utility model provides a recessed groove 131 and a reinforcing rib 132 on the outer wall surface 13b of the side wall 13. Specifically, the recessed groove 131 is provided at the positions corresponding to the signal terminal 2S and the ground terminal 2G, while the reinforcing rib 132 is provided at the position between the signal terminal 2S and the ground terminal 2G. This alters the distribution of the dielectric around the spring arm section 22 of the signal terminal 2S and the spring arm section 22 of the ground terminal 2G. Specifically, due to the above arrangement, the decrease in self-capacitance (also called diagonal capacitance) generated by the spring arm section 22 of the ground terminal 2G and the spring arm section 22 of the signal terminal 2S is greater than the decrease in mutual capacitance generated by the signal terminal 2S and the ground terminal 2G. Therefore, the mutual capacitance C... mL and self-content C L The ratio thus increases, thereby offsetting more inductive coupling, due to the long-range FEXT and mutual capacitance C. mL Self-Content C L Mutual inductance L mL , self-perception L L These factors are related, more specifically, the difference between the far string FEXT and the two ratios that include the above factors. The difference is proportional, so the reduction in this difference leads to a corresponding decrease in the distance, thereby improving the SI performance of the electrical connector. At the same time, the reinforcement of the rib 132 can compensate for the structural strength of the sidewall 13 on the one hand, and prevent the sidewall 13 from warping due to heat on the other hand.

[0061] 2. The terminal slot 135 is recessed from the inner wall surface 13a of the side wall 13 to the outer wall surface 13b, and the recessed groove 131 is recessed from the outer wall surface 13b of the side wall 13 to the inner wall surface 13a. The recessed groove 131 and the terminal slot 135 are arranged in a one-to-one correspondence in the transverse direction Y. This makes the plastic thickness of the side wall 13 at the inner side of the recessed groove 131 thinner. The spring arm section 22 of the signal terminal 2S is set in the terminal slot 135 directly opposite the recessed groove 131, which makes it easier to reduce the dielectric distribution around the signal terminal 2S and the ground terminal 2G.

[0062] 3. Each pair of signal terminals 2S is partially housed in the same terminal slot 135 and is provided in the same first recessed slot 131a in the lateral direction Y. That is, no protrusions are provided between a pair of signal terminals 2S, which facilitates tight coupling of a pair of signal terminals 2S for transmitting differential signals, thereby avoiding excitation of resonance and aggravation of insertion loss.

[0063] 4. In the transverse direction Y, the thickness of the sidewall 13 at the recessed groove 131 is 0.2-0.4mm. Within this range, changing the dielectric distribution of the sidewall 13 corresponding to the signal terminal 2S and the ground terminal 2G is beneficial to the connector assembly to achieve the effect of reducing crosstalk, and will not affect the injection molding of the insulating body 1.

[0064] 5. Both sidewalls 13 are provided with multiple recessed grooves 131 and multiple reinforcing ribs 132, so that the stress distribution of the two opposing sidewalls 13 is uniform. At the same time, the two sidewalls 13 have the same arrangement for the multiple conductive terminals 2 on both sides of the slot 12 in the lateral direction Y, which is beneficial to adjusting the overall anti-crosstalk performance of the connector assembly.

[0065] 6. The longitudinal rib 137 is located on the side of the recessed groove 131 away from the mating surface 11 along the insertion direction Z, and the longitudinal rib is set at a distance from the window 133. Each longitudinal rib 137 protrudes from the bottom surface of the recessed groove 131 and connects to two adjacent reinforcing ribs 132. This arrangement allows each longitudinal rib 137 to pull on two adjacent reinforcing ribs 132, which is beneficial to further strengthen the structural strength of the side wall 13.

[0066] 7. The terminal block 3 is located on the side of the recessed groove 131 away from the mating surface 11 along the insertion direction Z, and the terminal block 3 is offset from the recessed groove 131 along the transverse direction Y. In this way, the recessed groove 131 is only set directly opposite the spring arm section 22 of the signal terminal 2S located above the terminal block 3, and the recessed groove 131 will not affect the installation strength between the terminal block 3 and the side wall 13.

[0067] 8. The positioning groove 134 is used to engage with the mating part. When the positioning groove 134 is inserted, the mating part reinforces its structure. Thus, multiple recessed grooves 131 and multiple reinforcing ribs 132 are arranged on opposite sides of the positioning groove 134 along the longitudinal direction, which helps to prevent the sidewalls 13 on opposite sides of the positioning groove 134 from cracking under stress after the mating part is inserted.

[0068] 9. The depth of the positioning groove 134 is equal to the depth of the recessed groove 131. This setting avoids the recessed groove 131 having a large depth. On the one hand, at the position of the spring arm segment 22 of the signal terminal 2S on the side wall 13, the thickness distribution of the side wall 13 along the transverse direction Y is uneven. On the other hand, if the two recessed depths are different, the stress is more concentrated at the transition position of the connection between the two, making it easier for this place to break.

[0069] 10. The metal housing 6 is fitted on the outside of the insulating body 1, and the whole body plays the role of EMI shielding. It can absorb and reflect external electromagnetic interference and prevent them from penetrating the metal housing 6 and interfering with the signal transmission inside the connector assembly.

[0070] 11. The two side plates 61 of the metal housing 6 correspond one-to-one with the two side walls 13. Each side plate 61 and the corresponding side wall 13 are at least partially spaced apart to form two receiving cavities 63. With this arrangement, both sides of the connector assembly in the lateral direction Y are inserted and mated with the mating parts. Thus, the metal housing 6 can shield the insertion position of the connector assembly and the mating parts in all directions.

[0071] 12. The insulating body 1 has a mounting base 14 protruding from both ends along the longitudinal direction X. Each mounting base 14 has a mounting hole 141 that passes through along the insertion direction Z. The metal shell 6 has a mounting piece 62 corresponding to each mounting base 14. The mounting piece 62 has a through hole 621 corresponding to the mounting hole 141. The connector assembly also includes a plurality of fasteners 7. The fasteners 7 pass through the through hole 621 and the mounting hole 141 to fix the metal shell 6 and the insulating body 1 onto a circuit board 200. This arrangement is beneficial to the stable installation of the connector assembly.

[0072] 13. Multiple power terminals 4 are housed in power slots 122 and inserted into sockets 5. Each power terminal 4 has a soldering part 41. The side of the soldering part 41 facing away from the power slots 122 is exposed on the socket 5. Multiple power cables 9 are connected to the soldering parts 41 of the multiple power terminals 4, and the connection between the power cables 9 and the soldering parts 41 is located on the socket 5. This arrangement makes it easier to solder the power cables 9 and to apply glue for protection.

[0073] The above detailed description is only a description of the preferred embodiment of this utility model and is not intended to limit the patent scope of this utility model. Therefore, all equivalent technical changes made using the content of this invention's specification and illustrations are included within the patent scope of this invention.

Claims

1. A connector assembly for mating with a mating member along a mating direction, characterized in that, include: An insulating body extending in a longitudinal direction includes two sidewalls opposite each other in a transverse direction and at least one slot located between the two sidewalls. The insulating body has a mating surface, and the slot extends through the mating surface in the insertion direction. The sidewalls have an inner wall surface and an outer wall surface opposite each other in the transverse direction. The inner wall surface is oriented towards the slot. The longitudinal direction, the transverse direction and the insertion direction are perpendicular to each other. Multiple conductive terminals are disposed on an insulating body, including multiple signal terminals and multiple ground terminals. At least some of the conductive terminals include a fixed section, a spring arm section, a contact section and a conductive section. The spring arm section extends from the fixed section toward the mating surface. The contact section connects to the end of the spring arm section near the mating surface and is exposed in the slot. The conductive section extends from the fixed section away from the mating surface in the insertion direction and extends out of the insulating body. The plurality of conductive terminals are provided on at least one of the two side walls. At least one side wall is provided with a plurality of recessed grooves arranged in the longitudinal direction and at least one reinforcing rib alternately arranged with the plurality of recessed grooves. The recessed grooves are formed by recessing inward in the transverse direction from the corresponding outer wall surface. The reinforcing rib is provided to protrude from the bottom of the recessed groove and continues to recess inward from the bottom of the recessed groove to form at least one window. The window is connected to the slot. The contact section of the signal terminal and the contact section of the grounding terminal are exposed outward through the window. At least part of the spring arm section of the signal terminal and the spring arm section of the grounding terminal are respectively provided in the transverse direction corresponding to the recessed groove. The reinforcing rib extends from one side of the window in the longitudinal direction along the insertion direction away from the mating surface. In the insertion direction, the length of the reinforcing rib and the length of the recessed groove are both greater than the length of the window. The recessed groove is provided to extend beyond the window relative to the corresponding window away from the mating surface.

2. The connector assembly as claimed in claim 1, characterized in that: At least one inner wall surface is provided with a plurality of terminal slots, each terminal slot corresponding to accommodate at least one conductive terminal, and two adjacent terminal slots are separated by a partition. Each recessed slot is directly opposite to at least one terminal slot in the lateral direction, and each reinforcing rib is directly opposite to one of the partitions in the lateral direction.

3. The connector assembly as claimed in claim 2, characterized in that: The maximum recess depth of the terminal slot in the lateral direction corresponding to the slot position is greater than the recess depth of the recessed groove in the lateral direction.

4. The connector assembly as claimed in claim 2, characterized in that: Multiple signal terminals are arranged in pairs, with adjacent signal terminal pairs separated by at least one ground terminal. The paired signal terminals are used to transmit differential signals. Each pair of signal terminals is partially housed in the same terminal slot. A recessed slot that is directly opposite the signal terminal in the lateral direction is defined as a first recessed slot, and a recessed slot that is directly opposite the ground terminal in the lateral direction is defined as a second recessed slot. A first recessed slot corresponds to a pair of signal terminals in the lateral direction, and a second recessed slot corresponds to a ground terminal in the lateral direction.

5. The connector assembly as claimed in claim 1, characterized in that: In the transverse direction, the plastic thickness of the sidewall inside the recessed groove is 0.2-0.4 mm.

6. The connector assembly as claimed in claim 1, characterized in that: Both sidewalls are provided with multiple recessed grooves and multiple reinforcing ribs. The two sidewalls are defined as a first sidewall and a second sidewall. In the transverse direction, the thickness of the first sidewall is greater than the thickness of the second sidewall, and the recessed groove of the first sidewall is greater than the recessed groove of the second sidewall.

7. The connector assembly as claimed in claim 1, characterized in that: The sidewall also includes multiple longitudinal ribs extending in the longitudinal direction. The longitudinal ribs are located on the side of the window away from the mating surface along the insertion direction, and the distance between the longitudinal ribs and the window is set. Each longitudinal rib protrudes from the bottom surface of the recessed groove and connects to two adjacent reinforcing ribs.

8. The connector assembly as claimed in claim 1, characterized in that: The connector assembly also includes at least one terminal block, which covers a fixed section of a plurality of conductive terminals. The terminal block is located on the side of the recess away from the mating surface along the insertion direction, and the terminal block is offset from the recess in the lateral direction.

9. The connector assembly as claimed in claim 1, characterized in that: One of the sidewalls also includes a positioning groove formed by recessing from the outer side to the inner side. The positioning groove penetrates the mating surface in the insertion direction for mating with the mating parts. A reinforcing rib is provided between any two adjacent recesses. Multiple recesses and multiple reinforcing ribs are provided on opposite sides of the positioning groove along the longitudinal direction.

10. The connector assembly as claimed in claim 9, characterized in that: The depth of the positioning groove is equal to the depth of the recessed groove.

11. The connector assembly as claimed in claim 9, characterized in that: The connector assembly also includes a metal housing fitted over an insulating body. The metal housing includes two side plates disposed opposite each other in the lateral direction. One of the side plates is at least partially spaced from a side wall with a corresponding positioning recess to form a receiving cavity. The receiving cavity communicates with the positioning recess in the lateral direction and is used to allow mating parts to be inserted and engaged.

12. The connector assembly as claimed in claim 11, characterized in that: Both sidewalls are provided with positioning recesses, multiple recessed grooves and multiple reinforcing ribs. The two side plates of the metal shell correspond one-to-one with the two sidewalls, and each side plate is at least partially spaced from the corresponding sidewall to form a receiving cavity.

13. The connector assembly as claimed in claim 11, characterized in that: The insulating body has a mounting base protruding from each end along the longitudinal direction. Each mounting base has a mounting hole that extends along the insertion direction. The metal housing has a mounting piece corresponding to each mounting base. The mounting piece has a through hole corresponding to the mounting hole. The connector assembly also includes multiple fasteners. The fasteners pass through the through holes and mounting holes to fix the metal housing and the insulating body onto a circuit board.

14. The connector assembly as claimed in claim 1, characterized in that: The connector assembly includes multiple slots, including at least one signal slot and one power slot spaced apart in the longitudinal direction. Multiple conductive terminals are disposed in the signal slots. On the mating side, the power slots protrude from the signal slots in the insertion direction. The connector assembly also includes multiple power terminals and a socket. The multiple power terminals are housed in the power slots and inserted into the socket. Each power terminal has a solder portion, and the side of the solder portion facing away from the power slot is exposed in the socket. The connector assembly also includes multiple signal cables and multiple power cables. The multiple signal cables are connected to the conductive sections of the multiple signal terminals, and the multiple power cables are connected to the solder portions of the multiple power terminals. The connection between the power cables and the solder portions is located on the socket.

15. A slot connector, which is inserted into a mating member along a mating direction, characterized in that, include: An insulating body extending in a longitudinal direction includes two sidewalls opposite each other in a transverse direction and at least one slot located between the two sidewalls. The insulating body has a mating surface, and the slot extends through the mating surface in the insertion direction. The sidewalls have an inner wall surface and an outer wall surface opposite each other in the transverse direction. The inner wall surface is oriented towards the slot. The longitudinal direction, the transverse direction and the insertion direction are perpendicular to each other. Multiple conductive terminals, including multiple signal terminals and multiple ground terminals, at least some of the conductive terminals include a fixed section, a spring arm section, a contact section and a conductive section, the spring arm section extends from the fixed section toward the mating surface, the contact section connects to the end of the spring arm section near the mating surface and is exposed in the slot, and the conductive section extends from the fixed section away from the mating surface in the insertion direction and extends out of the insulating body. The sidewalls have multiple conductive terminals located on at least one of two sidewalls. The outer surface of at least one sidewall has multiple recessed grooves arranged in the longitudinal direction and multiple reinforcing ribs alternating with the recessed grooves. The reinforcing ribs protrude from the bottom of the recessed grooves. The recessed grooves and reinforcing ribs extend in the insertion direction. The recessed grooves are connected to at least one of the signal terminals and at least one of the ground terminals in the transverse direction, with a contact section and a spring arm section. The recessed grooves are at least partially separated from the corresponding signal terminals and from the corresponding ground terminals by insulating material. The inner surface of the sidewalls has multiple terminal slots recessed, each terminal slot corresponding to at least one conductive terminal. Adjacent terminal slots are separated by a partition. Each recessed groove is directly opposite at least one terminal slot in the transverse direction, and each reinforcing rib is directly opposite one of the partitions in the transverse direction.

16. The slot connector as claimed in claim 15, characterized in that: At least one window is formed by recessing inward from the bottom of at least part of the recessed groove. The window is connected to the slot and is located at the end of the recessed groove near the mating surface along the insertion direction. The contact section of at least part of the conductive terminal is exposed outward through the corresponding window. In the insertion direction, the length of the reinforcing rib and the recessed groove are both greater than the length of the window. The recessed groove extends beyond the window relative to the corresponding window on the side away from the mating surface.

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