First connector, second connector and electrical connector assembly
By setting a first substrate for receiving signals and a second substrate for transmitting signals in the electrical connector assembly, and adding a shielding sheet between them and overlapping with the conductive body, the near-end crosstalk problem is solved and the signal transmission quality is improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- DEYI PRECISION ELECTRONIC IND CO LTD PANYU
- Filing Date
- 2022-09-23
- Publication Date
- 2026-06-16
Smart Images
Figure CN115548734B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a first connector, a second connector, and an electrical connector assembly, and more particularly to an electrical connector assembly for electrically connecting a first mating element and a second mating element. Background Technology
[0002] Two adjacent transmission signal lines, the first transmission line has a first output terminal for transmitting signals and a first input terminal for receiving signals transmitted from the first output terminal, the second transmission line has a second output terminal for transmitting signals and a second input terminal for receiving signals transmitted from the second output terminal. When the first input terminal and the second output terminal are located on the same side, and when the first output terminal and the second input terminal are located on the same side, the interference of the signal transmitted from the second output terminal to the first input terminal and the interference of the signal transmitted from the first output terminal to the second input terminal are both considered near-end crosstalk. An existing electrical connector assembly includes a male connector and a female connector. The male connector includes a conductive shell, a first substrate and a second substrate housed within the conductive shell. The first substrate has a plurality of first signal pads arranged in a row for transmitting received signals and a plurality of second signal pads arranged in a row for transmitting transmitted signals. The second substrate also has a plurality of first signal pads arranged in a row for transmitting received signals and a plurality of second signal pads arranged in a row for transmitting transmitted signals. The female connector includes a first insulating body and a second insulating body. The first insulating body has a first slot, and a plurality of first signal terminals and a plurality of second signal terminals are housed in the first insulating body and protrude from the first slot. The second insulating body has a second slot, and a plurality of first signal terminals and a plurality of second signal terminals are housed in the second insulating body and protrude from the second slot. When the male connector is inserted into the female connector, the first substrate is inserted into the first slot, and the first signal pads are in electrical contact with the first signal terminals. The second substrate is inserted into the second slot, and the second signal pads are in electrical contact with the second signal terminals.
[0003] The above structure has the following problems:
[0004] 1. The first substrate is provided with a plurality of first signal pads for transmitting received signals and a plurality of second signal pads for transmitting transmitted signals. The first signal pads receive signal interference from the second signal pads, and near-end crosstalk is generated between the first signal pads and the second signal pads of the first substrate. 2. The second substrate is provided with a plurality of first signal pads for transmitting received signals and a plurality of second signal pads for transmitting transmitted signals. The first signal pads receive signal interference from the second signal pads, and near-end crosstalk is generated between the first signal pads and the second signal pads of the second substrate.
[0005] 2. The first signal pad of the first substrate receives signal interference from the second signal pad of the second substrate, and crosstalk occurs between the first signal pad of the first substrate and the second signal pad of the second substrate. The first signal pad of the second substrate receives signal interference from the second signal pad of the first substrate, and crosstalk occurs between the first signal pad of the second substrate and the second signal pad of the first substrate.
[0006] Third, the first signal terminal located on the first insulating body receives signal interference from the second signal terminal located on the first insulating body, resulting in crosstalk between the first signal terminal located on the first insulating body and the second signal terminal located on the first insulating body. The first signal terminal located on the second insulating body receives signal interference from the second signal terminal located on the second insulating body, resulting in crosstalk between the first signal terminal located on the second insulating body and the second signal terminal located on the second insulating body.
[0007] Fourth, the first signal terminal located on the first insulating body receives signal interference from the second signal terminal located on the second insulating body, resulting in crosstalk between the first signal terminal located on the first insulating body and the second signal terminal located on the second insulating body.
[0008] Therefore, it is necessary to design a new electrical connector assembly to overcome the above problems. Summary of the Invention
[0009] To address the problems encountered in the background art, the present invention aims to provide an electrical connector assembly in which a first substrate of a first connector is provided with a plurality of first signal pads for transmitting and receiving signals only, thereby minimizing near-end crosstalk within the first substrate; a second substrate of the first connector is provided with a second signal pad for transmitting and sending signals only, thereby minimizing near-end crosstalk within the second substrate; and a shielding sheet is provided between the first substrate and the second substrate for lapping with the first conductive body and / or the second conductive body of the second connector, thereby minimizing crosstalk between the first substrate and the second substrate and between the first signal terminal and the second signal terminal.
[0010] To achieve the above objectives, the present invention employs the following technical means:
[0011] A first connector, characterized in that it comprises: a conductive shell; a first substrate, the first substrate being housed in the conductive shell, the first substrate having a plurality of first signal pads arranged in a row, the plurality of first signal pads being used for transmitting and receiving signals; a second substrate, the second substrate being housed in the conductive shell, the second substrate having a plurality of second signal pads arranged in a row, the plurality of second signal pads being used for transmitting and sending signals; and a shielding sheet, the shielding sheet being housed in the conductive shell and located between the first substrate and the second substrate.
[0012] Furthermore, the first substrate has a first outer edge, the first signal pad has a first inner edge, and the shielding sheet has a second outer edge. Viewed in the front-to-back direction, the second outer edge is located between the first inner edge and the first outer edge, or the second outer edge is flush with the first outer edge.
[0013] Furthermore, the conductive outer shell is recessed with a mating groove along the front-to-back direction. The mating groove has a pair of interfaces. The shielding sheet has multiple sets of springs. Each set of springs has a first spring and a second spring. The free ends of the first spring and the second spring both extend away from the mating interface. When viewed from the top and bottom, the free ends of the first spring and the second spring extend in opposite directions.
[0014] Furthermore, the conductive outer shell is recessed with a mating groove along the front-to-back direction, the shielding sheet is provided with a plurality of through grooves and at least one spring piece located in the through groove, the through groove is provided with a second inner edge, the mating groove is provided with a third inner edge, the first substrate and the second substrate are both provided with a first outer edge, and the second inner edge is located between the first outer edge and the third inner edge.
[0015] A second connector, characterized in that it comprises: a first conductive body having a first slot; a second conductive body having a second slot; a receiving groove located between the first conductive body and the second conductive body for receiving a shielding sheet of the first connector; the first conductive body and the second conductive body being used to overlap the shielding sheet; a plurality of first signal terminals, the plurality of first signal terminals being received in the first conductive body and protruding from the first slot, the plurality of first signal terminals being used to transmit and receive signals; and a plurality of second signal terminals, the plurality of second signal terminals being received in the second conductive body and protruding from the second slot, the plurality of second signal terminals being used to transmit and send signals.
[0016] Furthermore, the first conductive body is provided with a plurality of receiving slots arranged in at least one row along the left-right direction. Each receiving slot is provided with a first conductive wall and a second conductive wall on opposite sides, and two third conductive walls connecting the first conductive wall and the second conductive wall. A portion of the first conductive wall and a portion of the second conductive wall are located on opposite sides of the first signal terminal along the up-down direction. The second conductive wall is provided with an opening near the first slot. The receiving slot communicates with the first slot through the opening. Two adjacent receiving slots are separated by the third conductive walls. The receiving slot accommodates at least one first signal terminal. The first signal terminal has a contact portion, a fixing portion, and an elastic portion connecting the contact portion and the fixing portion. The fixing portion and the elastic portion are covered by the second conductive wall. The contact portion protrudes from the first slot through the opening.
[0017] Furthermore, the first conductive body is provided with a plurality of receiving slots arranged in at least one row along the left-right direction. Each receiving slot contains at least one first signal terminal. Each receiving slot is provided with a first conductive wall, a second conductive wall, and a fourth conductive wall connecting the first conductive wall and the second conductive wall. A portion of the first conductive wall and a portion of the second conductive wall are located on opposite sides of the first signal terminal along the up-down direction. The fourth conductive wall is located in front of the first signal terminal.
[0018] Furthermore, the first conductive body is provided with a plurality of receiving slots arranged in at least one row along the left-right direction. Each receiving slot contains a plastic block and at least one first signal terminal. Each receiving slot is provided with a first conductive wall and a second conductive wall on opposite sides. A portion of the first conductive wall and a portion of the second conductive wall are located on opposite sides of the first signal terminal along the up-down direction. The second conductive wall is provided with an opening near the first slot. The receiving slot communicates with the first slot through the opening. The first signal terminal has a contact portion that protrudes from the first slot through the opening. The plastic block has a first portion located between the contact portion and the first conductive wall. The first portion is spaced apart from the contact portion. The second conductive wall has a wall surface located within the receiving slot. The first portion protrudes toward the opening but does not extend beyond the wall surface.
[0019] Furthermore, the first conductive body is provided with a plurality of receiving slots arranged in at least one row along the left-right direction. The receiving slots accommodate an insulating block, a plastic block and at least one first signal terminal. Each first signal terminal has a contact portion, an elastic portion connected to the contact portion and a fixing portion connected to the elastic portion from front to back. The fixing portion is injection molded with the insulating block. Each receiving slot is provided with a fourth conductive wall located in front of the contact portion. The plastic block is located between the fourth conductive wall and the insulating block.
[0020] Furthermore, each of the receiving slots is provided with a first conductive wall and a second conductive wall, a portion of the first conductive wall and a portion of the second conductive wall are located on opposite sides of the first signal terminal in the vertical direction, and the plastic block has a first abutting surface and a second abutting surface that are vertically opposite each other, the first abutting surface abutting the first conductive wall, and / or the second abutting surface abutting the second conductive wall.
[0021] Furthermore, the first conductive body is provided with a plurality of receiving slots arranged in at least one row along the left-right direction. Each receiving slot is provided with a first conductive wall located on one side of the first signal terminal. The first signal terminal has a fixing part and a conductive part connected to the fixing part. A connector is electrically connected to the conductive part. The connector is located on the side of the conductive part close to the first conductive wall. The first conductive wall is provided with a plate part located on one side of the fixing part and a protrusion extending from the plate part away from the conductive part. The distance from the protrusion to the conductive part is greater than the distance from the plate part to the fixing part.
[0022] Furthermore, an insulating shell covers the first conductive body and the second conductive body. The insulating shell, the first conductive body, and a first conductive plastic block together form the first slot. The insulating shell, the second conductive body, and a second conductive plastic block together form the second slot. The insulating shell, the first conductive body, the second conductive body, and a third conductive plastic block together form the receiving groove. Both the first conductive body and the second conductive body have multiple receiving grooves arranged in two rows along the left-right direction. The multiple receiving grooves have multiple first receiving grooves and multiple second receiving grooves. Each first receiving groove of the first conductive body receives at least one first signal terminal. Each second receiving groove of the first conductive body receives a first grounding terminal. The first grounding terminal is in direct contact with the first conductive body. Each first receiving groove of the second conductive body receives at least one second signal terminal. Each second receiving groove of the second conductive body receives a second grounding terminal. The second grounding terminal is in direct contact with the second conductive body. The first signal terminal and the second signal terminal are both horizontally arranged. The first grounding terminal and the second grounding terminal are both vertically arranged.
[0023] An electrical connector assembly, characterized in that it comprises: a first connector having a conductive housing; a first substrate, the first substrate being housed within the conductive housing, the first substrate being used for transmitting and receiving signals; a second substrate, the second substrate being housed within the conductive housing, the second substrate being used for transmitting and sending signals; at least one shielding sheet, the shielding sheet being housed within the conductive housing and located between the first substrate and the second substrate; a second connector having a first conductive body, a second conductive body, and a receiving groove located between the first conductive body and the second conductive body, the first conductive body having a first slot, the second conductive body having a second slot; and a plurality of first signal terminals, the plurality of which... A first signal terminal is housed in the first conductive body and exposed in the first slot, and multiple first signal terminals are used to transmit and receive signals; multiple second signal terminals are housed in the second conductive body and exposed in the second slot, and multiple second signal terminals are used to transmit and transmit signals; when the first connector and the second connector are mated, the first slot is used to house the first substrate, the first signal terminal is in electrical contact with the first substrate, the second slot is used to house the second substrate, the second signal terminal is in electrical contact with the second substrate, the receiving groove is used to house the shielding sheet, and the first conductive body and / or the second conductive body is used to overlap the shielding sheet.
[0024] Furthermore, the conductive outer shell has a recessed mating groove along the front-to-back direction, the mating groove has a pair of interfaces, and the shielding sheet has multiple sets of spring contacts. Each set of spring contacts has a first spring contact and a second spring contact. The first spring contact is used to connect with the first conductive body, and the second spring contact is used to connect with the second conductive body. The free ends of the first spring contact and the second spring contact both extend away from the mating interface. When viewed from the top and bottom, the free ends of the first spring contact and the second spring contact extend in opposite directions.
[0025] Furthermore, the conductive outer shell has a recessed mating groove along the front-to-back direction, the shielding sheet has multiple through grooves and at least one spring piece located in the through groove, the spring piece is used to connect the first conductive body and / or the second conductive body, the through groove has a second inner edge, the mating groove has a third inner edge, the first substrate and the second substrate both have a first outer edge, the second inner edge is located between the first outer edge and the third inner edge, when the first connector and the second connector are mated, the first conductive body and the second conductive body are both received in the mating groove and are located on opposite sides of the through groove in the vertical direction.
[0026] Furthermore, the first conductive body is provided with a plurality of receiving slots arranged in at least one row along the left-right direction. Each receiving slot contains a plastic block and at least one first signal terminal. Each receiving slot is provided with a first conductive wall and a second conductive wall on opposite sides. A portion of the first conductive wall and a portion of the second conductive wall are located on opposite sides of the first signal terminal along the vertical direction. The second conductive wall has an opening near the first slot. The receiving slot communicates with the first slot through the opening. The first signal terminal has a contact portion protruding from the first slot through the opening and an elastic portion connecting the contact portion. The plastic block has a first portion located between the contact portion and the first conductive wall and a second portion located between the elastic portion and the first conductive wall. When the first connector and the second connector are mated, the first substrate abuts against the contact portion. The contact portion is spaced apart from the first portion, and the elastic portion contacts the second portion.
[0027] Furthermore, the shielding sheet is provided with multiple sets of spring contacts, each set of spring contacts having a first spring contact and a second spring contact. The first spring contact is used to overlap the first conductive body upwards, and the second spring contact is used to overlap the second conductive body downwards. Each first signal terminal has a contact portion that is electrically in contact with the first substrate, and each second signal terminal has a contact portion that is electrically in contact with the second substrate. When viewed in the vertical direction, the projection portions of the first spring contact and the second spring contact both coincide with the projection portions of the contact portions.
[0028] Compared with the prior art, the present invention has the following beneficial effects:
[0029] 1. The first substrate of the first connector is provided with a plurality of first signal pads for transmitting and receiving signals only, so that near-end crosstalk within the first substrate is minimized; the second substrate of the first connector is provided with a second signal pad for transmitting and sending signals only, so that near-end crosstalk within the second substrate is minimized.
[0030] 2. The first signal pad of the first substrate receives electromagnetic signal interference from the second signal pad of the second substrate. The first connector is provided with a shield between the first substrate and the second substrate, which can isolate most of the electromagnetic signal interference between the first substrate and the second substrate.
[0031] Third, the second connector is provided with a row of first signal terminals for transmitting and receiving signals only and a row of second signal terminals for transmitting and sending signals only, so that the near-end crosstalk between the multiple first signal terminals and the near-end crosstalk between the multiple second signal terminals are minimized.
[0032] Fourth, the first signal terminal receives signal interference from the second signal terminal. The second connector is provided with a first conductive body covering multiple first signal terminals and a second conductive body covering multiple second signal terminals. The first conductive body and the second conductive body can isolate most of the electromagnetic signal interference between the first signal terminal and the second signal terminal.
[0033] 5. When the first connector and the second connector are plugged in, if the shielding plate overlaps the first conductive body and / or the second conductive body, the shielding plate can shield the electromagnetic signal interference between the first signal terminal and the second signal terminal at the opening position of the second connector, and the first conductive body and / or the second conductive body can shield the electromagnetic signal interference between the first signal pad and the second signal pad at the opening position of the first connector.
[0034] 6. The shielding sheet simultaneously overlaps with the first conductive body and the second conductive body, which enables the first conductive body and the second conductive body to be grounded at the overlap position, ensuring that the potentials are equal, which helps to improve the shielding effect and further reduce electromagnetic signal interference. [Attached Image Description]
[0035] Figure 1 This is a perspective view of the first connector and the second connector of the present invention;
[0036] Figure 2 This is a cross-sectional view of the mating of the first connector and the second connector of the present invention.
[0037] Figure 3 This invention is for Figure 2 Enlarged view of position A along the middle edge;
[0038] Figure 4 This is a perspective sectional view of the first connector of the present invention;
[0039] Figure 5 For the present invention Figure 4 Enlarged view of position B along the middle edge;
[0040] Figure 6 This is a cross-sectional view of the signal terminal of the second connector of the present invention;
[0041] Figure 7 This is a cross-sectional view of the grounding terminal of the second connector of the present invention;
[0042] Figure 8 This is a partial exploded view of the second connector of the present invention;
[0043] Figure 9 A simulation test diagram comparing the near-end crosstalk (NEXT) of a pair of signal terminals of an electrical connector assembly of the prior art with that of a pair of signal terminals of an electrical connector assembly of the present invention;
[0044] Figure 10 A simulation test diagram comparing the far-end crosstalk (FEXT) of a pair of signal terminals of an electrical connector assembly of the prior art with that of a pair of signal terminals of an electrical connector assembly of the present invention.
[0045] Explanation of reference numerals in the accompanying drawings for the specific implementation methods:
[0046] First connector 100 Conductive casing 10 docking groove 101 Interface 1011 Third inner edge E3 First substrate 11 First signal pad 111 First grounding pad 112 Second substrate 12 Second signal pad 121 First inner edge E1 Second grounding pad 122 First outer edge P1 Shielding plate 13 Through slot 131 Second inner edge E2 Shrapnel 132 First fragment 1321 Second fragment 1322 Second outer edge P2 Second connector 200 Insulating housing 20 Conductive plastic 21 First conductive plastic 211 Second conductive plastic 212 Third conductive plastic 213 First conductive body 22 First slot 221 Second conductive body 23 Second slot 231 Reception slot 24 First receiving tank 24a Second receiving tank 24b First conductive wall 241 Plate 2411 Protrusion 2412 Second conductive wall 242 Opening 2421 Wall 2422 Third conductive wall 243 Fourth conductive wall 244 Storage slot 25 First signal terminal 26a Second signal terminal 26b Contact Department 261 Fixing part 262 Elastic part 263 Connector 264 First grounding terminal 27a Second grounding terminal 27b Insulating block 28 29 plastic blocks First contact surface 291 Second contact surface 292 Part 1, page 293 Part 2, page 294 Connector 300 First docking element 400 Second docking element 500 Detailed Implementation
[0047] To facilitate a better understanding of the purpose, structure, features, and effects of this invention, the invention will now be further described in conjunction with the accompanying drawings and specific embodiments.
[0048] like Figures 1 to 8 As shown, the present invention includes an electrical connector assembly with a first connector 100 and a second connector 200 for electrically connecting a first mating element 400 to a second mating element 500. The first connector 100 is electrically connected to the first mating element 400, which is preferably a cable. The second connector 200 is electrically connected to the second mating element 500, which is preferably a circuit board.
[0049] like Figures 1 to 8As shown, the electrical connector assembly is defined with the width direction of the second connector 200 as the left-right direction (the left-right direction is the extension direction of the Y-axis, where the positive direction of the Y-axis is to the right), the insertion direction of the first connector 100 into the second connector 200 as the front-back direction (the front-back direction is the extension direction of the X-axis), and the height direction of the second connector 200 as the up-down direction (the up-down direction is the extension direction of the Z-axis).
[0050] like Figure 1 As shown, the first connector 100 includes a conductive housing 10, a first substrate 11 and a second substrate 12 housed within the conductive housing 10, and a shielding sheet 13 housed within the conductive housing 10. The conductive housing 10 is made of metal, and the shielding sheet 13 is located between the first substrate 11 and the second substrate 12 and is directly fixed to the conductive housing 10, thereby grounding the shielding sheet 13. The first substrate 11 and the second substrate 12 are used to electrically connect the first mating element 400 to the second connector 200.
[0051] like Figures 4 to 5 As shown, the conductive outer shell 10 has a recessed mating groove 101 from back to front. The mating groove 101 has a pair of interfaces 1011 and a third inner edge E3. The first substrate 11 has a plurality of first signal pads 111 and a plurality of first ground pads 112 arranged in a row. The plurality of first signal pads 111 are used to transmit received signals. The second substrate 12 has a plurality of second signal pads 121 and a plurality of second ground pads 122 arranged in a row. The plurality of second signal pads 121 are used to transmit transmitted signals. Both the first substrate 11 and the second substrate 12 have a first outer edge P1, and both the first signal pads 111 and the second signal pads 121 have a first inner edge E1.
[0052] like Figures 4 to 5As shown, the shielding sheet 13 has multiple through slots 131, multiple sets of spring tabs 132, and a second outer edge P2. Each set of spring tabs 132 is located within each through slot 131. Viewed in the front-back direction, the second outer edge P2 is located between the first inner edge E1 and the first outer edge P1. In other embodiments, viewed in the front-back direction, the second outer edge P2 is flush with the first outer edge P1. Each through slot 131 has a second inner edge E2, which is located between the first outer edge P1 and the third inner edge E3. Each set of spring tabs 132 has a first spring tab 1321 and a second spring tab 1322. The free ends of the first spring tab 1321 and the second spring tab 1322 both extend away from the interface 1011. Viewed in the vertical direction, the free ends of the first spring tab 1321 and the second spring tab 1322 extend in opposite directions.
[0053] like Figures 6 to 8 As shown, the second connector 200 includes an insulating shell 20, a plurality of conductive plastics 21, a first conductive body 22, a second conductive body 23, a receiving groove 25 located between the first conductive body 22 and the second conductive body 23, a plurality of first signal terminals 26a received in the first conductive body 22, a plurality of second signal terminals 26b received in the second conductive body 23, a plurality of insulating blocks 28 received in the first conductive body 22 and the second conductive body 23, and a plurality of plastic blocks 29 received in the first conductive body 22 and the second conductive body 23. The insulating shell 20 covers the first conductive body 22 and the second conductive body 23. The first conductive body 22 and the second conductive body 23 are both made of metal material by powder metallurgy. In other embodiments, the first conductive body 22 and the second conductive body 23 may also be formed by stamping and bending of metal sheet, or by conductive plastic material, or by metal plating on insulating plastic material to form conductive material. Multiple conductive plastics 21 include a first conductive plastic 211, a second conductive plastic 212, and a third conductive plastic 213. The insulating housing 20, the first conductive body 22, the second conductive body 23, and the third conductive plastic 213 together form the receiving groove 25. The first signal terminal 26a and the second signal terminal 26b are electrically connected to the second mating element 500 and the first connector 100.
[0054] like Figures 6 to 8As shown, the first conductive body 22 is recessed into a first slot 221 from front to back. The insulating shell 20, the first conductive body 22, and the first conductive plastic 211 together form the first slot 221. A plurality of first signal terminals 26a are exposed in the first slot 221. The second conductive body 23 is recessed into a second slot 231 from front to back. The insulating shell 20, the second conductive body 23, and the second conductive plastic 212 together form the second slot 231. A plurality of second signal terminals 26b are exposed in the second slot 231.
[0055] like Figures 6 to 8 As shown, both the first conductive body 22 and the second conductive body 23 are provided with a plurality of receiving slots 24 arranged in two rows along the left-right direction. The plurality of receiving slots 24 have a plurality of first receiving slots 24a and a plurality of second receiving slots 24b. Each first receiving slot 24a of the first conductive body 22 contains two first signal terminals 26a, an insulating block 28 and a plastic block 29. Each second receiving slot 24b of the first conductive body 22 contains a first grounding terminal 27a. The first grounding terminal 27a is in direct contact with the first conductive body 22 to achieve grounding. Each first receiving slot 24a of the second conductive body 23 contains two second signal terminals 26b, an insulating block 28 and a plastic block 29. Each second receiving slot 24b of the second conductive body 23 contains a second grounding terminal 27b. The second grounding terminal 27b is in direct contact with the second conductive body 23 to achieve grounding. In other embodiments, each of the first receiving slots 24a of the first conductive body 22 receives a first signal terminal 26a, and each of the first receiving slots 24a of the second conductive body 23 receives a second signal terminal 26b.
[0056] like Figures 6 to 8As shown, each of the receiving slots 24 is provided with a first conductive wall 241, a second conductive wall 242 on opposite sides, and two third conductive walls 243 and a fourth conductive wall 244 connecting the first conductive wall 241 and the second conductive wall 242. A portion of the first conductive wall 241 and a portion of the second conductive wall 242 of the first conductive body 22 are located on opposite sides of the first signal terminal 26a in the vertical direction, and a portion of the first conductive wall 241 and a portion of the second conductive wall 242 of the second conductive body 23 are located on opposite sides of the second signal terminal 26b in the vertical direction. The second conductive wall 242 of the first conductive body 22 has an opening 2421 near the first slot 221, and the receiving slot 24 of the first conductive body 22 communicates with the first slot 221 through the opening 2421; the second conductive wall 242 of the second conductive body 23 also has an opening 2421 near the second slot 231, and the receiving slot 24 of the second conductive body 23 communicates with the second slot 231 through the opening 2421. Two adjacent receiving slots 24 are separated by the third conductive wall 243. The second conductive wall 242 has a wall surface 2422 located within the receiving slot 24. The fourth conductive wall 244 of the first conductive body 22 is located in front of the first signal terminal 26a, and the fourth conductive wall 244 of the second conductive body 23 is located in front of the second signal terminal 26b.
[0057] like Figures 6 to 8As shown, the first signal terminal 26a and the second signal terminal 26b are both horizontally arranged, while the first ground terminal 27a and the second ground terminal 27b are both vertically arranged. The first signal terminal 26a is used to transmit received signals, and the plurality of second signal terminals 26b are used to transmit transmitted signals. Each of the first signal terminal 26a and the second signal terminal 26b has a contact portion 261, a fixing portion 262, an elastic portion 263 connecting the contact portion 261 and the fixing portion 262, and a conductive portion 264 connecting the fixing portion 262. Viewed vertically, the first spring contact 1321 and the second spring contact 1322 both coincide with the projected portion of the contact portion 261. The fixing part 262 and the insulating block 28 are injection molded together. The fixing part 262 and the elastic part 263 are shielded by the second conductive wall 242. The fourth conductive wall 244 is located in front of the contact part 261. The contact part 261 of the first signal terminal 26a protrudes from the first slot 221 through the opening 2421, and the contact part 261 of the second signal terminal 26b protrudes from the second slot 231 through the opening 2421. A connector 300 is electrically connected to the conductive part 264, and the connector 300 is located on the side of the conductive part 264 near the first conductive wall 241. In this embodiment, the connector 300 is solder; in other embodiments, the connector 300 can be solder balls, solder bodies, or electrically connected to the conductive elements of the conductive portion 264; the first conductive wall 241 is provided with a plate portion 2411 located on one side of the fixing portion 262 and a protrusion 2412 extending from the plate portion 2411 away from the conductive portion 264, the distance from the protrusion 2412 to the conductive portion 264 is greater than the distance from the plate portion 2411 to the fixing portion 262.
[0058] like Figures 6 to 8As shown, the plastic block 29 is assembled between the fourth conductive wall 244 and the insulating block 28. Each plastic block 29 has a first abutting surface 291 and a second abutting surface 292 opposite to each other, a first portion 293 located between the contact portion 261 and the first conductive wall 241, and a second portion 294 located between the elastic portion 263 and the first conductive wall 241. The first abutting surface 291 of the first conductive body 22 does not abut against the first conductive wall 241, and the second abutting surface 292 of the first conductive body 22 abuts against the second conductive wall 242. The first abutting surface 291 of the second conductive body 23 abuts against the first conductive wall 241, and the second abutting surface 292 of the second conductive body 23 does not abut against the second conductive wall 242. In other embodiments, the first abutting surface 291 and the second abutting surface 292 of the first conductive body 22 abut against the first conductive wall 241 and the second conductive wall 242, respectively, and the first abutting surface 291 and the second abutting surface 292 of the second conductive body 23 abut against the first conductive wall 241 and the second conductive wall 242, respectively. The first portion 293 is spaced apart from the contact portion 261, and the first portion 293 protrudes toward the opening 2421 but does not extend beyond the wall surface 2422.
[0059] like Figures 2 to 3 and Figures 6 to 8As shown, when the first connector 100 and the second connector 200 are mated, the first slot 221 is used to receive the first substrate 11, wherein the first ground terminal 27a abuts against the first ground pad 112 of the first substrate 11, the contact portion 261 of the first signal terminal 26a is electrically in contact with the first signal pad 111 of the first substrate 11, the contact portion 261 of the first signal terminal 26a is spaced apart from the first portion 293, and the elastic portion 263 of the first signal terminal 26a is in contact with the second portion 294. The second slot 231 is used to receive the second substrate 12, wherein the second ground terminal 27b abuts against the second ground pad 122 of the second substrate 12, the contact portion 261 of the second signal terminal 26b is electrically in contact with the second signal pad 121 of the second substrate 12, the contact portion 261 of the second signal terminal 26b is spaced apart from the first portion 293, and the elastic portion 263 of the second signal terminal 26b is in contact with the second portion 294. The receiving groove 25 is used to receive the shielding sheet 13. The first conductive body 22 and the second conductive body 23 are both received in the mating groove 101 and are located on opposite sides of the through groove 131 in the vertical direction. The first conductive body 22 and the second conductive body 23 are used to overlap the shielding sheet 13, wherein the first elastic tab 1321 is used to overlap the first conductive body 22, and the second elastic tab 1322 is used to overlap the second conductive body 23. In other embodiments, the first conductive body 22 or the second conductive body 23 is used to overlap the shielding sheet 13, and the elastic tab 132 is used to overlap the first conductive body 22 or the second conductive body 23. In other embodiments, the plastic block 29 and the insulating block 28 are integrally formed.
[0060] To better understand the technical effects achieved by the technical solution of this application, please refer to Figure 9 and... Figure 10 The figures are simulation test diagrams comparing the near-end crosstalk (NEXT) of a pair of signal terminals of an electrical connector assembly of the prior art with that of a pair of signal terminals of an electrical connector assembly of the present invention, and simulation test diagrams comparing the far-end crosstalk (FEXT) of a pair of signal terminals of an electrical connector assembly of the prior art with that of a pair of signal terminals of an electrical connector assembly of the present invention. Figure 9 The horizontal axis represents frequency, and the vertical axis represents the magnitude of near-end crosstalk (NEXT). Figure 10 The horizontal axis represents frequency, and the vertical axis represents the magnitude of far-end crosstalk (FEXT). From Figure 9As can be seen, the near-end crosstalk (NEXT) of a pair of signal terminals (dB(St(Diff7, Diff9))_1) in the prior art electrical connector assembly exceeds the Spec5.0 and Spec6.0 specification lines in a large frequency range. In contrast, the near-end crosstalk (NEXT) of a pair of signal terminals (dB(St(Diff7, Diff9))) of the electrical connector assembly of the present invention exceeds the Spec5.0 and Spec6.0 specification lines in a very small frequency range. The NEXT values in most frequency ranges meet the Spec5.0 and Spec6.0 specifications, and in some frequency ranges, the NEXT values are even far superior to the Spec5.0 and Spec6.0 specifications. The technical solution of the present invention is particularly effective in improving near-end crosstalk. Figure 10 As can be seen, the far-end crosstalk (FEXT) of a pair of signal terminals (dB(St(Diff7, Diff5))_1) of the electrical connector assembly in the background technology exceeds the frequency range of Spec5.0 and Spec6.0 (the Spec5.0 and Spec6.0 specifications are the same and coincident) by a large margin. In contrast, the far-end crosstalk (FEXT) of a pair of signal terminals (dB(St(Diff7, Diff5))) of the electrical connector assembly of the present invention exceeds the frequency range of Spec5.0 and Spec6.0 specifications by a very small margin. The far-end crosstalk values in most frequency ranges meet the Spec5.0 and Spec6.0 specifications. It is evident that the technical solution of the present invention can greatly reduce the electromagnetic signal interference received by the electrical connector assembly.
[0061] In summary, the electrical connector of the present invention has the following beneficial effects:
[0062] (1) The first substrate 11 of the first connector 100 is provided with a plurality of first signal pads 111 for transmitting received signals only, thereby minimizing near-end crosstalk within the first substrate 11; the second substrate 12 of the first connector 100 is provided with a plurality of second signal pads 121 for transmitting transmitted signals only, thereby minimizing near-end crosstalk within the second substrate 12. The first signal pads 111 of the first substrate 11 receive electromagnetic signal interference transmitted from the second signal pads 121 of the second substrate 12. The first connector 100 is provided with a shielding sheet 13 between the first substrate 11 and the second substrate 12, which can isolate most of the electromagnetic signal interference between the first substrate 11 and the second substrate 12.
[0063] (2) The second connector 200 is provided with a plurality of first signal terminals 26a arranged in a row for transmitting received signals and a plurality of second signal terminals 26b arranged in a row for transmitting transmitted signals, thereby minimizing near-end crosstalk between the plurality of first signal terminals 26a and between the plurality of second signal terminals 26b. The first signal terminals 26a receive signal interference from the second signal terminals 26b. The second connector 200 is provided with a first conductive body 22 covering the plurality of first signal terminals 26a and a second conductive body 23 covering the plurality of second signal terminals 26b. The first conductive body 22 and the second conductive body 23 can isolate most of the electromagnetic signal interference between the first signal terminals 26a and the second signal terminals 26b.
[0064] (3) When the first connector 100 and the second connector 200 are plugged in, and the shielding plate 13 overlaps with the first conductive body 22 and / or the second conductive body 23, the shielding plate 13 can shield the electromagnetic signal interference of the first signal terminal 26a and the second signal terminal 26b at the opening position of the second connector 200, and the first conductive body 22 and / or the second conductive body 23 can shield the electromagnetic signal interference of the first signal pad 111 and the second signal pad 121 at the opening position of the first connector 100. The shielding plate 13 overlaps with both the first conductive body 22 and the second conductive body 23, which can realize the common grounding of the first conductive body 22 and the second conductive body 23 at the overlap position, ensuring equal potential, which is beneficial to improving the shielding effect and further reducing electromagnetic signal interference.
[0065] (4) The second outer edge P2 of the shielding sheet 13 is located between the first inner edge E1 and the first outer edge P1, or the second outer edge P2 is flush with the first outer edge P1. This is to ensure that the shielding sheet 13 does not protrude from the first substrate 11, thereby avoiding damage caused by the shielding sheet 13 preferentially contacting the second connector 200 when the first connector 100 and the second connector 200 are docked. At the same time, in order to ensure that the shielding sheet 13 overlaps with the first conductive body 22 and the second conductive body 23 as early as possible, and the shielding sheet 13 may partially overlap with the first conductive body 22 and the second conductive body 23, effectively isolating electromagnetic signal interference between the first conductive body 22 and the second conductive body 23.
[0066] (5) The shielding sheet 13 is provided with multiple sets of springs 132. Each set of springs 132 has a first spring 1321 and a second spring 1322, which ensures the balance of the force of the shielding sheet 13 overlapping the first conductive body 22 and the second conductive body 23, reduces the elastic fatigue of the first spring 1321 and the second spring 1322, and further helps to maintain the stability of the overlap. The free ends of the first spring tab 1321 and the second spring tab 1322 both extend away from the interface 1011. This prevents the shielding sheet 13 from first contacting the free ends of the first spring tab 1321 and the second spring tab 1322 when it overlaps with the first conductive body 22 and the second conductive body 23, thus avoiding easy breakage of the first spring tab 1321 and the second spring tab 1322. This further ensures a smooth and stable overlap between the shielding sheet 13 and the first conductive body 22 and the second conductive body 23. Viewed vertically, the free ends of the first spring tab 1321 and the second spring tab 1322 extend in opposite directions, facilitating simultaneous overlap of the shielding sheet 13 with the first conductive body 22 and the second conductive body 23, which are located at different positions in the vertical direction.
[0067] (6) When the first connector 100 is mated with the second connector 200, the first conductive body 22 and the second conductive body 23 of the second connector 200 are both housed in the mating groove 101 of the first connector 100 and are located on the upper and lower sides of the through groove 131 respectively. The second inner edge E2 of the through groove 131 is located between the first outer edge P1 and the third inner edge E3 of the mating groove 101, which can ensure that the first conductive body 22 and the second conductive body 23 shield the through groove 131 in the vertical direction, prevent electromagnetic signals from leaking out of the through groove 131, and ensure effective isolation of electromagnetic signal interference of the first conductive body 22 and the second conductive body 23.
[0068] (7) The receiving slot 24 accommodates at least one first signal terminal 26a. Two adjacent receiving slots 24 are separated by the third conductive wall 243. The third conductive wall 243 can shield electromagnetic signal interference between the first signal terminals 26a in the two receiving slots 24. The fixing part 262 and the elastic part 263 are shielded by the second conductive wall 242. Only the contact part 261 protrudes from the first slot 221 through the opening 2421, which is beneficial to shield electromagnetic signal interference of more of the first signal terminals 26a located in the direction of the second conductive wall 242, and further improves the high frequency performance of the second connector 200.
[0069] (8) A portion of the first conductive wall 241 and a portion of the second conductive wall 242 are located on opposite sides of the first signal terminal 26a in the vertical direction, for shielding electromagnetic signal interference in the vertical direction of the first signal terminal 26a. The fourth conductive wall 244 is located in front of the first signal terminal 26a, for shielding electromagnetic signal interference in front of the first signal terminal 26a.
[0070] (9) The plastic block 29 and the first signal terminal 26a are housed in the same receiving groove 24, and the first portion 293 of the plastic block 29 is located between the contact portion 261 and the first conductive wall 241 of the first signal terminal 26a. The first portion 293 and the contact portion 261 are spaced apart, and there is air between the first portion 293 and the contact portion 261. Because the dielectric constant of air is low, according to the formula... (C is capacitance, ε is the dielectric constant of the transmission medium), the capacitance of the adjustable contact 261 can be reduced, as shown by the formula. It is understood that the characteristic impedance of the adjustable contact portion 261 is increased, and the first portion 293 protrudes toward the opening 2421 but does not exceed the wall surface 2422. This can prevent the first signal terminal 26a from abutting against the first substrate 11 of the first connector 100 and then shifting toward the first portion 293, thereby contacting the first portion 293 and affecting the function of the plastic block 29 in adjusting the high frequency.
[0071] (10) The fixing part 262 is covered by the insulating block 28, which can prevent the fixing part 262 from contacting the first conductive body 22 and causing a short circuit. When the signal is transmitted in the first signal terminal 26a, the contact part 261 and the elastic part 263 protrude from the insulating block 28 and are exposed to the air. The dielectric constant of air is low, according to the formula (C is capacitance, ε is the dielectric constant of the transmission medium), when the contact portion 261 and the elastic portion 263 are exposed to air, the capacitance at the contact portion 261 and the elastic portion 263 will be lower than the capacitance at the fixed portion 262, according to the formula... It is known that the characteristic impedance of the first signal terminal 26a at the contact portion 261 and the elastic portion 263 is higher than that of the fixed portion 262. The dielectric constant of the plastic block 29 is greater than that of air. By providing the plastic block 29 on one side of the contact portion 261 and the elastic portion 263, the capacitance of the contact portion 261 and the elastic portion 263 can be increased, thereby reducing the characteristic impedance of this part and making it more continuous with the characteristic impedance of the fixed portion 262. This avoids the indirect generation of electromagnetic wave signal reflection due to impedance mismatch and improves its high-frequency performance.
[0072] (11) The plastic block 29 is supported by the first conductive wall 241 and / or the second conductive wall 242, so that the position of the plastic block 29 relative to the first signal terminal 26a is relatively stable, thereby ensuring that the high-frequency performance of the first signal terminal 26a is relatively stable when adjusted by the plastic block 29.
[0073] (12) When the first connector 100 and the second connector 200 are mated, the first substrate 11 abuts against the contact portion 261. When the signal is transmitted in the first signal terminal 26a, the capacitance of the contact portion 261 is higher than the capacitance of the elastic portion 263, according to the formula... It can be seen that the characteristic impedance of the first signal terminal 26a at the contact portion 261 is lower than that of the elastic portion 263 because air has a low dielectric constant, according to the formula (C is capacitance, ε is dielectric constant of the transmission medium). By designing the contact portion 261 and the first portion 293 of the plastic block 29 to be spaced apart, with air between the contact portion 261 and the first portion 293, and simultaneously designing the elastic portion 263 to be in contact with the second portion 294, with no air between the elastic portion 263 and the second portion 294, and the dielectric constant of the second portion 294 of the plastic block 29 being greater than that of air, it is ensured that the capacitance of the elastic portion 263 is greater than that of the contact portion 261, and the characteristic impedance of the elastic portion 263 is lower than that of the contact portion 261. This makes the characteristic impedance of the elastic portion 263 and the characteristic impedance of the contact portion 261 more continuous, avoiding impedance mismatch and indirectly causing electromagnetic wave signal reflection, thus improving its high-frequency performance.
[0074] (13) Both the first spring piece 1321 and the second spring piece 1322 coincide with the projected portion of the contact portion 261, which is beneficial for the first spring piece 1321 to press the first conductive body 22 upward when it is used to overlap the first conductive body 22, and further beneficial for the contact portion 261 of the first signal terminal 26a to abut the first substrate 11 upward. At the same time, it is beneficial for the second spring piece 1322 to press the second conductive body 23 downward when it is used to overlap the second conductive body 23, and further beneficial for the contact portion 261 of the second signal terminal 26b to abut the second substrate 12 downward.
[0075] (14) When the signal is transmitted in the first signal terminal 26a, according to the formula (C is capacitance, ε is the dielectric constant of the transmission medium, and d is the distance between the two conductors). A connector 300 is electrically connected to the conductive portion 264. The connector 300 is located on the side of the conductive portion 264 near the first conductive wall 241. Considering the connector 300 and the conductive portion 264 as a whole, if the first conductive wall 241 does not have a protrusion 2412, but instead has a plate portion 2411 extending to one side of the connector 300, then the distance from the plate portion 2411 to the fixing portion 262 is greater than the distance from the plate portion 2411 to the connector 300. The capacitance of the fixing portion 262 is lower than the capacitance of the conductive portion 264, according to the formula... It is known that the characteristic impedance of the first signal terminal 26a at the fixed part 262 is higher than that of the conductive part 264. The first conductive wall 241 provides a protrusion 2412 that bends and extends from the plate part 2411 toward the end away from the conductive part 264. The distance from the protrusion 2412 to the conductive part 264 is greater than the distance from the plate part 2411 to the fixed part 262. This reduces the capacitance of the conductive part 264, thereby increasing the characteristic impedance of the conductive part 264. This makes it more continuous with the characteristic impedance of the fixed part 262, avoiding impedance mismatch and indirectly causing electromagnetic wave signal reflection, thus improving its high-frequency performance.
[0076] The above detailed description is only an illustration of a preferred embodiment of the present invention and is not intended to limit the patent scope of the present invention. Therefore, all equivalent technical changes made using the content of this invention's specification and illustrations are included within the patent scope of this invention.
Claims
1. A first connector for mating with a second connector, the second connector comprising a first conductive body, a second conductive body, and a receiving groove located between the first conductive body and the second conductive body, the first conductive body comprising a first slot, the second conductive body comprising a second slot, the second connector further comprising a plurality of first signal terminals received in the first conductive body and a plurality of second signal terminals received in the second conductive body, characterized in that, include: A conductive outer casing; A first substrate is housed in the conductive housing. The first substrate has a plurality of first signal pads arranged in a row, and the plurality of first signal pads are used to transmit received signals. A second substrate is housed in the conductive housing. The second substrate has a plurality of second signal pads arranged in a row, each of which is used to transmit a signal. A shielding sheet, which is housed within the conductive outer casing and located between the first substrate and the second substrate. When the first connector and the second connector are mated, the first substrate is used to be received in the first slot, the second substrate is used to be received in the second slot, the shielding sheet is used to be received in the receiving groove, the shielding sheet is used to overlap the first conductive body and / or the second conductive body, a plurality of first signal pads are used to electrically contact the first signal terminal, and a plurality of second signal pads are used to electrically contact the second signal terminal.
2. The first connector as claimed in claim 1, characterized in that: The first substrate has a first outer edge, the first signal pad has a first inner edge, and the shielding sheet has a second outer edge. When viewed in the front-back direction, the second outer edge is located between the first inner edge and the first outer edge, or the second outer edge is flush with the first outer edge.
3. The first connector as described in claim 1, characterized in that: The conductive outer shell has a recessed mating groove along the front-to-back direction. The mating groove has a pair of interfaces. The shielding sheet has multiple sets of springs. Each set of springs has a first spring and a second spring. The free ends of the first spring and the second spring both extend away from the mating interface. When viewed from the top and bottom, the free ends of the first spring and the second spring extend in opposite directions.
4. The first connector as claimed in claim 1, characterized in that: The conductive outer shell has a recessed mating groove along the front-to-back direction. The shielding sheet has multiple through slots and at least one spring piece located in the through slots. The through slots have a second inner edge, and the mating groove has a third inner edge. The first substrate and the second substrate both have a first outer edge, and the second inner edge is located between the first outer edge and the third inner edge.
5. A second connector, characterized in that, include: A first conductive body, the first conductive body having a first slot and a plurality of receiving slots arranged in two rows along the left and right direction; A second conductive body, the second conductive body having a second slot and a plurality of receiving slots arranged in two rows along the left and right direction; A receiving slot is located between the first conductive body and the second conductive body for receiving a shielding piece of a first connector; the first conductive body and the second conductive body are used to overlap the shielding piece. A plurality of first signal terminals are received in two rows of receiving slots of the first conductive body and protrude from the first slot, and the plurality of first signal terminals are all used to transmit and receive signals. A plurality of second signal terminals are received in two rows of receiving slots of the second conductive body and protrude from the second slot, and the plurality of second signal terminals are used to transmit signals.
6. The second connector as described in claim 5, characterized in that: Each of the receiving slots of the first conductive body is provided with a first conductive wall and a second conductive wall on opposite sides, and two third conductive walls connecting the first conductive wall and the second conductive wall. A portion of the first conductive wall and a portion of the second conductive wall are located on opposite sides of the first signal terminal in the vertical direction. The second conductive wall is provided with an opening near the first slot. The receiving slot of the first conductive body communicates with the first slot through the opening. Two adjacent receiving slots of the first conductive body are separated by the third conductive walls. The receiving slot of the first conductive body accommodates at least one first signal terminal. The first signal terminal has a contact portion, a fixing portion, and an elastic portion connecting the contact portion and the fixing portion. The fixing portion and the elastic portion are shielded by the second conductive wall. The contact portion protrudes from the first slot through the opening.
7. The second connector as claimed in claim 5, characterized in that: The receiving groove of the first conductive body accommodates at least one first signal terminal. Each receiving groove of the first conductive body is provided with a first conductive wall, a second conductive wall, and a fourth conductive wall connecting the first conductive wall and the second conductive wall. A portion of the first conductive wall and a portion of the second conductive wall are located on opposite sides of the first signal terminal in the vertical direction, and the fourth conductive wall is located in front of the first signal terminal.
8. The second connector as claimed in claim 5, characterized in that: The receiving groove of the first conductive body accommodates a plastic block and at least one first signal terminal. Each receiving groove of the first conductive body has a first conductive wall and a second conductive wall on opposite sides. A portion of the first conductive wall and a portion of the second conductive wall are located on opposite sides of the first signal terminal in a vertical direction. The second conductive wall has an opening near the first slot. The receiving groove of the first conductive body communicates with the first slot through the opening. The first signal terminal has a contact portion that protrudes from the first slot through the opening. The plastic block has a first portion located between the contact portion and the first conductive wall. The first portion is spaced apart from the contact portion. The second conductive wall has a wall surface located within the receiving groove of the first conductive body. The first portion protrudes toward the opening but does not extend beyond the wall surface.
9. The second connector as claimed in claim 5, characterized in that: The receiving groove of the first conductive body accommodates an insulating block, a plastic block, and at least one first signal terminal. Each first signal terminal has a contact portion, an elastic portion connected to the contact portion, and a fixing portion connected to the elastic portion from front to back. The fixing portion is injection molded with the insulating block. Each receiving groove of the first conductive body is provided with a fourth conductive wall located in front of the contact portion. The plastic block is located between the fourth conductive wall and the insulating block.
10. The second connector as claimed in claim 9, characterized in that: Each of the receiving slots of the first conductive body is provided with a first conductive wall and a second conductive wall. A portion of the first conductive wall and a portion of the second conductive wall are located on opposite sides of the first signal terminal in the vertical direction. The plastic block has a first abutting surface and a second abutting surface that are vertically opposite each other. The first abutting surface abuts against the first conductive wall, and / or the second abutting surface abuts against the second conductive wall.
11. The second connector as claimed in claim 5, characterized in that: Each of the receiving slots of the first conductive body is provided with a first conductive wall located on one side of the first signal terminal. The first signal terminal has a fixing portion and a conductive portion connected to the fixing portion. A connector is electrically connected to the conductive portion. The connector is located on the side of the conductive portion close to the first conductive wall. The first conductive wall is provided with a plate portion located on one side of the fixing portion and a protrusion extending from the plate portion away from the conductive portion. The distance from the protrusion to the conductive portion is greater than the distance from the plate portion to the fixing portion.
12. The second connector as claimed in claim 5, characterized in that: An insulating shell covers a first conductive body and a second conductive body. The insulating shell, the first conductive body, and a first conductive plastic block together form a first slot. The insulating shell, the second conductive body, and a second conductive plastic block together form a second slot. The insulating shell, the first conductive body, the second conductive body, and a third conductive plastic block together form a receiving groove. Multiple receiving grooves include multiple first receiving grooves and multiple second receiving grooves. Each first receiving groove of the first conductive body receives at least one first signal terminal. Each second receiving groove of the first conductive body receives a first ground terminal, which is in direct contact with the first conductive body. Each first receiving groove of the second conductive body receives at least one second signal terminal. Each second receiving groove of the second conductive body receives a second ground terminal, which is in direct contact with the second conductive body. The first signal terminal and the second signal terminal are both horizontally arranged, and the first ground terminal and the second ground terminal are both vertically arranged.
13. An electrical connector assembly, characterized in that, include: A first connector, which is provided with a conductive housing; A first substrate is housed within the conductive housing and is used to transmit and receive signals. A second substrate is housed within the conductive housing and is used to transmit signals. At least one shielding sheet is housed within the conductive housing and located between the first substrate and the second substrate; A second connector is provided with a first conductive body, a second conductive body and a receiving groove located between the first conductive body and the second conductive body. The first conductive body is provided with a first slot and a plurality of receiving grooves arranged in two rows along the left and right direction. The second conductive body is provided with a second slot and a plurality of receiving grooves arranged in two rows along the left and right direction. A plurality of first signal terminals are housed in two rows of receiving slots of the first conductive body and exposed in the first slot, and the plurality of first signal terminals are all used to transmit and receive signals. A plurality of second signal terminals are housed in two rows of receiving slots of the second conductive body and exposed in the second slot, and each of the plurality of second signal terminals is used to transmit a signal. When the first connector and the second connector are mated, the first slot is used to receive the first substrate, the first signal terminal is in electrical contact with the first substrate, the second slot is used to receive the second substrate, the second signal terminal is in electrical contact with the second substrate, the receiving groove is used to receive the shielding sheet, and the first conductive body and / or the second conductive body are used to overlap the shielding sheet.
14. The electrical connector assembly as claimed in claim 13, characterized in that: The conductive outer shell has a recessed mating groove along the front-to-back direction. The mating groove has a pair of interfaces. The shielding sheet has multiple sets of springs. Each set of springs has a first spring and a second spring. The first spring is used to connect with the first conductive body, and the second spring is used to connect with the second conductive body. The free ends of the first spring and the second spring both extend away from the mating interface. When viewed from the top and bottom, the free ends of the first spring and the second spring extend in opposite directions.
15. The electrical connector assembly as claimed in claim 13, characterized in that: The conductive outer shell has a mating groove recessed along the front-to-back direction. The shielding sheet has multiple through slots and at least one spring piece located in the through slot. The spring piece is used to connect the first conductive body and / or the second conductive body. The through slot has a second inner edge, and the mating groove has a third inner edge. The first substrate and the second substrate both have a first outer edge. The second inner edge is located between the first outer edge and the third inner edge. When the first connector and the second connector are mated, the first conductive body and the second conductive body are both received in the mating groove and are located on opposite sides of the through slot in the vertical direction.
16. The electrical connector assembly as claimed in claim 13, characterized in that: Each of the receiving slots of the first conductive body contains a plastic block and at least one first signal terminal. Each of the receiving slots of the first conductive body has a first conductive wall and a second conductive wall on opposite sides. A portion of the first conductive wall and a portion of the second conductive wall are located on opposite sides of the first signal terminal in a vertical direction. The second conductive wall has an opening near the first slot. The receiving slot of the first conductive body communicates with the first slot through the opening. The first signal terminal has a contact portion protruding from the first slot through the opening and an elastic portion connecting the contact portion. The plastic block has a first portion located between the contact portion and the first conductive wall and a second portion located between the elastic portion and the first conductive wall. When the first connector and the second connector are mated, the first substrate abuts against the contact portion, the contact portion is spaced apart from the first portion, and the elastic portion contacts the second portion.
17. The electrical connector assembly as claimed in claim 13, characterized in that: The shielding sheet is provided with multiple sets of spring contacts. Each set of spring contacts has a first spring contact and a second spring contact. The first spring contact is used to overlap the first conductive body upwards, and the second spring contact is used to overlap the second conductive body downwards. Each first signal terminal has a contact portion that is electrically in contact with the first substrate, and each second signal terminal has a contact portion that is electrically in contact with the second substrate. When viewed in the vertical direction, the projection portions of the first spring contact and the second spring contact coincide with the projection portions of the contact portions.