Electric connector

Abstract

The invention discloses an electric connector. The electrical connector includes a housing and a signal transmission mechanism. The shell comprises a function hole and a plurality of terminal grooves, the terminal grooves penetrate through the shell along a first direction, the plurality of terminal grooves are arranged at intervals along a second direction, the function hole extends along the second direction to be communicated with the plurality of terminal grooves, and the second direction is perpendicular to the first direction. The signal transmission mechanism comprises a plurality of first terminals, each first terminal comprises an input end and an output end, the input ends are used for being electrically connected with a circuit board, the output ends are used for being electrically connected with a butting connector, and each first terminal is arranged in one terminal groove in a penetrating mode so that at least part of each first terminal can be exposed out of the corresponding functional hole. The electric connector can reduce the electromagnetic interference among the plurality of first terminals, thereby improving the integrity and transmission quality of signals, and facilitating the transmission of high-frequency signals.

Description

Technical Field

[0001] The present application belongs to the technical field of electrical connectors, and in particular relates to an electrical connector. Background Art

[0002] The connector assembly includes a docking connector and an electrical connector, and the docking connector and the electrical connector are electrically connected to each other for signal transmission. As the product needs, the terminal length of the electrical connector needs to be increased. However, the longer terminal easily affects the transmission of the signal and cannot meet the transmission requirements of high-frequency signals. Summary of the invention

[0003] In view of this, it is necessary to provide an electrical connector capable of transmitting high-frequency signals.

[0004] An embodiment of the present application provides an electrical connector, including a housing and a signal transmission mechanism. The housing includes a functional hole and a plurality of terminal slots, the terminal slots are arranged through the housing along a first direction, and the plurality of terminal slots are arranged at intervals along a second direction, the functional hole extends along the second direction to connect the plurality of terminal slots, and the second direction is perpendicular to the first direction. The signal transmission mechanism includes a plurality of first terminals, the first terminals include an input end and an output end, the input end is used to electrically connect a circuit board, and the output end is used to electrically connect a docking connector, and each first terminal is inserted into a terminal slot, so that each first terminal is at least partially exposed to the functional hole.

[0005] In the above-mentioned electrical connector, the first terminal is accommodated by the terminal slot, so that the plurality of first terminals are limited to prevent the plurality of first terminals from shaking relative to the housing, and the plurality of terminal slots are connected through the functional hole, so that the plurality of first terminals inserted in the terminal slots are connected through the functional hole. The medium in the functional hole is air, and the dielectric constant of air is lower than that of the housing, which can effectively reduce the crosstalk between two adjacent first terminals. In this way, the electromagnetic interference between the plurality of first terminals can be reduced, thereby improving the integrity and transmission quality of the signal, which is conducive to the transmission of high-frequency signals.

[0006] In some embodiments, the length of the functional hole along the first direction is H1, the length of the first terminal along the first direction is H2, and H1:H2 is 0.4~0.6; the length of the functional hole along the third direction is W1, and the third direction is perpendicular to the first direction and the second direction. When the first terminal is inserted into the terminal slot, the length of the area corresponding to the first terminal and the functional hole along the third direction is W21, and W1:W21 is 0.3~0.5.

[0007] In some embodiments, the length of the terminal groove along the first direction is H3, and H1:H3 is 0.35-0.55.

[0008] In some embodiments, the housing is connected to a tongue plate, the tongue plate extends along the second direction, and the terminal slots penetrate at least part of the tongue plate, so that the first terminal in each terminal slot is partially embedded in the tongue plate.

[0009] In some embodiments, the first terminal includes a first abutment portion and a second abutment portion, the first abutment portion is close to the input end, and the second abutment portion is close to the output end, and both the first abutment portion and the second abutment portion are used to abut against the inner wall of the terminal groove; along the third direction, from the output end to the second abutment portion, the distance between the first terminal and the tongue plate gradually decreases, so that the distance between the output end and the tongue plate is greater than the distance between the second abutment portion and the tongue plate.

[0010] In some embodiments, the first terminal is provided with an avoidance groove, the avoidance groove is provided on a side of the first terminal facing the tongue plate, and the avoidance groove is opened between the first abutting portion and the second abutting portion.

[0011] In some embodiments, the signal transmission mechanism also includes multiple second terminals, defining the tongue plate as the symmetry center, and terminal grooves are opened on opposite sides of the symmetry center along the third direction. Each second terminal is inserted into a terminal groove, and each second terminal is symmetrically arranged with a first terminal along the tongue plate.

[0012] In some embodiments, the housing is connected to a plurality of ribs, the ribs are disposed in the functional holes and are used to separate two adjacent first terminals, the functional holes between the two adjacent ribs are connected to the terminal slots, and the plurality of first terminals between the two adjacent ribs cooperate to transmit the same type of signals.

[0013] In some embodiments, a slot is provided at one end of the housing away from the circuit board, the output end is located in the slot, and the slot is used to plug in a docking connector so that the docking connector electrically contacts the first terminal to electrically connect to the circuit board.

[0014] In some embodiments, the housing is provided with a positioning groove, the positioning groove is located in the slot, and the positioning groove is used to accommodate the insertion of the positioning post of the docking connector when the docking connector is inserted into the slot. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of an electrical connector connected to a circuit board in one embodiment of the present application.

[0016] Figure 2 yes Figure 1 A top view of the CEC connector.

[0017] Figure 3 yes Figure 1 Schematic diagram of the structure in which the signal transmission mechanism is connected to the circuit board.

[0018] Figure 4 yes Figure 1 A cross-sectional view of the CEC connector without the signal transmission mechanism connected.

[0019] Figure 5 yes Figure 1 Cross-sectional view of the Chinese electrical connector along VV.

[0020] Figure 6 yes Figure 1 Bottom view of the CEC connector.

[0021] Figure 7 yes Figure 1 A partial schematic diagram of the CEC connector after cutting along VI I-VI I.

[0022] Figure 8 yes Figure 1 Schematic diagram of the first terminal in .

[0023] Fig. 9 yes Figure 1 Schematic diagram of the decibel level of crosstalk after the electrical connector is connected to the test equipment.

[0024] Main component symbols

[0025] Electrical connector 100

[0026] Housing 10

[0027] Terminal slot 101

[0028] Functional hole 102

[0029] Slot 103

[0030] Rib 11

[0031] First Area 1101

[0032] Second area 1102

[0033] Third Area 1103

[0034] Fourth Area 1104

[0035] tongue plate 12

[0036] Positioning slot 121

[0037] Stop surface 122

[0038] Bump 13

[0039] Signal transmission mechanism 20

[0040] First terminal 21

[0041] Avoidance slot 2101

[0042] Input 211

[0043] Output 212

[0044] First abutting portion 213

[0045] The second abutting portion 214

[0046] Second terminal 22

[0047] Circuit board 200

[0048] First direction Z

[0049] Second direction X

[0050] The third direction Y

[0051] The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0052] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0053] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0054] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0055] In the description of the embodiments of the present application, the term "perpendicular" is used to describe an ideal state between two components. In actual production or use, the two components may be approximately perpendicular to each other. The term "parallel" is used to describe an ideal state between two components. In actual production or use, the two components may be approximately parallel to each other.

[0056] Reference to "embodiment" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments.

[0057] The connector assembly includes a docking connector and an electrical connector, and the docking connector and the electrical connector are electrically connected to each other for signal transmission. As the product needs, the terminal length of the electrical connector needs to be increased. However, the longer terminal easily affects the transmission of the signal and cannot meet the transmission requirements of high-frequency signals.

[0058] An embodiment of the present application provides an electrical connector, including a housing and a signal transmission mechanism. The housing includes a functional hole and a plurality of terminal slots, the terminal slots are arranged through the housing along a first direction, and the plurality of terminal slots are arranged at intervals along a second direction, the functional hole extends along the second direction to connect the plurality of terminal slots, and the second direction is perpendicular to the first direction. The signal transmission mechanism includes a plurality of first terminals, the first terminals include an input end and an output end, the input end is used to electrically connect a circuit board, and the output end is used to electrically connect a docking connector, and each first terminal is inserted into a terminal slot, so that each first terminal is at least partially exposed to the functional hole.

[0059] In the above-mentioned electrical connector, the first terminal is accommodated by the terminal slot, so that the plurality of first terminals are limited to prevent the plurality of first terminals from shaking relative to the housing, and the plurality of terminal slots are connected through the functional hole, so that the plurality of first terminals inserted in the terminal slots are connected through the functional hole. The medium in the functional hole is air, and the dielectric constant of air is lower than that of the housing, which can effectively reduce the crosstalk between two adjacent first terminals. In this way, the electromagnetic interference between the plurality of first terminals can be reduced, thereby improving the integrity and transmission quality of the signal, which is conducive to the transmission of high-frequency signals.

[0060] The embodiments of the present application are further described below in conjunction with the accompanying drawings. In the absence of conflict, the various implementations in the present application can be combined with each other.

[0061] See also Figure 1 In this embodiment, the first direction, the second direction and the third direction are defined to be perpendicular to each other. The first direction is the direction parallel to Z in the diagram, the second direction is the direction parallel to X in the diagram, and the third direction is the direction parallel to Y in the diagram.

[0062] For ease of reference to the drawings, hereinafter, the first direction is denoted by “first direction Z”, the second direction is denoted by “second direction X”, and the third direction is denoted by “third direction Y”.

[0063] The embodiment of the present application provides an electrical connector 100 for plugging into a docking connector (not shown) so that the docking connector is electrically connected to the electrical connector 100 .

[0064] In some embodiments, the electrical connector 100 is a female end of a connector, and the mating connector is a male end of a connector.

[0065] In some embodiments, the electrical connector 100 is used to electrically connect the circuit board 200, and the docking connector is used to electrically connect the signal line and access the power supply through the signal line. The docking connector is plugged into the electrical connector 100 to connect the circuit board 200 to the power supply to charge the electronic product. In addition, the docking connector can also be connected to other devices, such as audio equipment, through the signal line, so that the circuit board 200 can be connected to other devices to transmit signals.

[0066] In some embodiments, electronic products include, but are not limited to, computers.

[0067] See also Figure 2 and Figure 3 In some embodiments, the electrical connector 100 includes a housing 10 and a signal transmission mechanism 20. The housing 10 is fixedly mounted on the circuit board 200, and the signal transmission mechanism 20 is fixedly welded to the circuit board 200. The housing 10 is used to install the signal transmission mechanism 20, which can limit the position of the signal transmission mechanism 20 and protect the signal transmission mechanism 20, and can also facilitate the mating connector to electrically contact the signal transmission mechanism 20.

[0068] See also Figure 4 The housing 10 includes a functional hole 102 and a plurality of terminal slots 101 , and the terminal slots 101 are arranged through the housing 10 along a first direction Z. The plurality of terminal slots 101 are arranged at intervals along a second direction X. The functional hole 102 extends along the second direction X to connect the plurality of terminal slots 101 .

[0069] Please combine Figure 5 The signal transmission mechanism 20 includes a plurality of first terminals 21. Each first terminal 21 is inserted into a terminal slot 101, so that the plurality of first terminals 21 are arranged at intervals along the second direction X. The first terminal 21 includes an input end 211 and an output end 212. The input end 211 is used to weld the circuit board 200, so that the first terminal 21 is electrically connected to the circuit board 200. The output end 212 is used to electrically contact the docking connector, so that the first terminal 21 is electrically connected to the docking connector.

[0070] The input ends 211 of the plurality of first terminals 21 are welded to the circuit board 200, thereby limiting the movement of the first terminals 21 in the first direction Z. Each first terminal 21 is inserted into a terminal slot 101, and the side wall of each terminal slot 101 can limit the shaking of a first terminal 21, thereby preventing the first terminal 21 from tilting or breaking relative to the circuit board 200, so that the signal transmission mechanism 20 is stably connected to the circuit board 200.

[0071] When the plurality of first terminals 21 are all inserted into the corresponding terminal slots 101, each first terminal 21 is at least partially exposed to the functional hole 102, that is, the projection of the first terminal 21 along the second direction X at least partially overlaps with the functional hole 102, and the functional hole 102 can connect the plurality of first terminals 21. The medium in the functional hole 102 is air, and the dielectric constant of air is lower than that of the housing 10, which can effectively reduce the crosstalk between two adjacent first terminals 21. In this way, the electromagnetic interference between the plurality of first terminals 21 can be reduced, thereby improving the integrity and transmission quality of the signal, which is beneficial to the transmission of high-frequency signals.

[0072] In some embodiments, the housing 10 is made of plastic.

[0073] It can be understood that the dielectric constant is a physical quantity that describes the ability of a material to store electrical energy. The dielectric constant of air is lower than that of the plastic housing 10. Reducing the dielectric constant can reduce the crosstalk between two adjacent first terminals 21. Reducing the crosstalk can reduce the electromagnetic interference between two adjacent first terminals 21, thereby improving the signal integrity and transmission quality.

[0074] See also Figure 1 and Figure 2 In some embodiments, a slot 103 is provided at one end of the housing 10 away from the circuit board 200. The output end 212 is located at the slot 103. The slot 103 is used to plug in a docking connector.

[0075] When the docking connector is inserted into the slot 103, the docking connector electrically contacts the output end 212 of the first terminal 21, and the docking connector is electrically connected to the circuit board 200 through the first terminal 21. The docking connector is stably plugged into the housing 10, and the docking connector can maintain electrical contact with the first terminal 21 without the action of external force.

[0076] In some embodiments, the housing 10 is provided with a positioning groove 121, and the positioning groove 121 is located in the slot 103. The positioning groove 121 is used to plug the positioning post of the docking connector to position the docking connector.

[0077] In some embodiments, the length of the positioning groove 121 along the first direction Z is greater than the length of the slot 103 along the first direction Z. The positioning post protrudes from the docking connector. When the positioning post is aligned with and inserted into the positioning groove 121, the docking connector is inserted into the slot 103, and when the positioning post contacts the bottom of the positioning groove 121, the docking connector is electrically connected to the signal transmission mechanism 20.

[0078] The positioning groove 121 and the positioning column can not only locate the position of the docking connector inserted into the slot 103, but also locate the depth of the docking connector inserted into the slot 103, which can prevent the docking connector from being inserted incorrectly and affect the life of the electrical connector 100, and can increase the service life of the electrical connector 100.

[0079] See also Figure 2 In some embodiments, the number of the positioning grooves 121 is three, and the three positioning grooves 121 are arranged at intervals along the second direction X. Each positioning groove 121 can accommodate a positioning column to be inserted, so as to more accurately locate the insertion position of the docking connector.

[0080] In some embodiments, when observed along the first direction Z, the positioning grooves 121 on both sides are arranged on the side walls of the shell 10 and are arranged in a T-shape; the middle positioning groove 121 is located at the center position of the shell 10 along the first direction Z and the second direction X, and is arranged in a cross-shaped groove, so as to position the first direction Z and the second direction X of the docking connector.

[0081] In some embodiments, the number of the positioning grooves 121 may be two, four or more. The positioning grooves 121 may also be round holes, square holes, cones or other shapes. This application does not limit this, and those skilled in the art may select according to actual conditions.

[0082] See also Figure 4 and Figure 5 In some embodiments, the housing 10 is connected to a tongue plate 12, and the tongue plate 12 extends along the second direction X. The positioning groove 121 is formed in the tongue plate 12. The terminal slots 101 penetrate at least part of the tongue plate 12, so that the first terminal 21 in each terminal slot 101 is partially embedded in the tongue plate 12.

[0083] Therefore, the tongue plate 12 and the terminal groove 101 can locate the installation position of the first terminal 21 and limit the first terminal 21 from shaking along the second direction X or the third direction Y, so that the first terminal 21 can be stably installed on the circuit board 200. The tongue plate 12 can also support the housing 10 so that the housing 10 is not easily deformed.

[0084] In some embodiments, the tongue plate 12 includes a stop surface 122. When the first terminal 21 is inserted into the terminal slot 101, the stop surface 122 faces the output end 212 to stop the output end 212 of the first terminal 21. The stop surface 122 and the circuit board 200 together position the first terminal 21 along the first direction Z to prevent the first terminal 21 from moving along the first direction Z.

[0085] See also Figure 3 In some embodiments, the signal transmission mechanism 20 further includes a plurality of second terminals 22. The tongue plate 12 is defined as a symmetry center, and terminal slots 101 are provided on opposite sides of the symmetry center along the third direction Y. Each second terminal 22 is inserted into a terminal slot 101, and each second terminal 22 is symmetrically arranged with a first terminal 21 along the tongue plate 12.

[0086] It is understandable that the board-to-board connector is usually designed with double-row terminals. In some embodiments, the first terminal 21 and the second terminal 22 have the same structure and are symmetrically arranged along the symmetry center. The symmetrical first terminal 21 and the second terminal 22 have the same function.

[0087] See also Figure 7 In some embodiments, the length of the tongue plate 12 along the third direction Y is W4, and W4 is 0.4 mm to 0.5 mm, so as to control the distance between the symmetrical first terminal 21 and the second terminal 22 along the third direction Y, and avoid interference caused by the first terminal 21 and the second terminal 22 being too close along the third direction Y.

[0088] In some embodiments, W4 is 0.44 mm, so that the distance between the symmetrical first terminal 21 and the second terminal 22 along the third direction Y is 0.44 mm, meeting the transmission requirements of high-frequency signals.

[0089] See also Figure 4 and Figure 5 In some embodiments, the housing 10 is connected with a plurality of ribs 11. The ribs 11 are provided in the functional holes 102 and are used to separate two adjacent first terminals 21. The functional holes 102 and the terminal slots 101 between two adjacent ribs 11 are connected.

[0090] The plurality of ribs 11 are arranged at intervals along the second direction X, and can support the functional hole 102 along the second direction X, thereby improving the rigidity of the housing 10 , facilitating the molding of the housing 10 , and preventing the housing 10 from being easily deformed.

[0091] In some embodiments, along the second direction X, a plurality of first terminals 21 between two adjacent ribs 11 are used to jointly realize a function.

[0092] The two ribs 11 can separate a functional area. The multiple first terminals 21 located in the same functional area are in the same transmission environment and cooperate with each other to transmit the same type of signals, such as audio signals, video signals, etc.; compared with the multiple first terminals 21 used to jointly transmit the same type of signals in different transmission environments, signal interference is less likely to occur between the multiple first terminals 21 in the same transmission environment, which is conducive to signal transmission.

[0093] For example, the plurality of first terminals 21 located in the same functional area include a first terminal 21 for grounding, a first terminal 21 for receiving a signal, and a first terminal 21 for receiving a power supply, and the plurality of first terminals 21 cooperate with each other and work together to transmit the same signal. Traditionally, the first terminal is also called a PIN.

[0094] In some embodiments, among the plurality of first terminals 21 located in the same functional area, the first terminal 21 for grounding is disposed close to the rib 11 .

[0095] In some embodiments, the number of ribs 11 is eight, and two adjacent ribs 11 form a functional area, so that the eight ribs 11 separate the plurality of first terminals 21 into four functional areas arranged at intervals, and each functional area is used to transmit a signal. Please refer to 2. For the convenience of distinction, along the second direction X, the four functional areas are defined as the first area 1101, the second area 1102, the third area 1103 and the fourth area 1104. The first area 1101, the second area 1102, the third area 1103 and the fourth area 1104 are four main functional areas for signal transmission. The first terminals 21 located between the first area 1101 and one side of the housing 10, between the first area 1101 and the second area 1102, between the second area 1102 and the third area 1103, between the third area 1103 and the fourth area 1104, and between the fourth area 1104 and the other side of the housing 10 are used to realize other functions, such as voltage protection, current input, etc.

[0096] In some embodiments, the length of the rib 11 along the first direction Z is the same as the length H1 of the functional hole 102 along the first direction Z, so as to support the functional hole 102 in the first direction Z.

[0097] In some embodiments, the plurality of terminal grooves 101 form a plurality of protrusions 13 spaced apart from each other in the second direction X. The protrusions 13 are connected to the tongue plate 12 and the inner wall of the housing 10 at opposite sides along the third direction Y to support the housing 10 .

[0098] In some embodiments, the length of the rib 11 along the second direction X is the same as the length of the protrusion 13 along the second direction X, so that the rib 11 and the protrusion 13 are smoothly connected in the first direction Z, avoiding the formation of a step between the rib 11 and the protrusion 13 to affect the first terminal 21, thereby facilitating the forming of the rib 11.

[0099] In some embodiments, the functional hole 102 passes through one end of the housing 10 close to the input end 211 , so as to facilitate the processing of the functional hole 102 .

[0100] When manufacturing the shell 10 of the present application, cutting is performed from one end of the shell 10 close to the output terminal 212 along the first direction Z toward the other end of the shell 10 to open a slot 103; cutting is performed from one end of the shell 10 close to the input terminal 211 along the first direction Z toward the other end of the shell 10 to open a plurality of terminal slots 101; cutting is performed from one end of the shell 10 close to the input terminal 211 along the first direction Z toward the other end of the shell 10 to open a plurality of functional holes 102. When opening the functional holes 102, the uncut portion of the shell 10 between two adjacent functional holes 102 is defined as a rib 11, and the protrusion 13 is the uncut portion of the shell 10 between the slot 103 and the functional hole 102.

[0101] See also Figure 8 In some embodiments, the first terminal 21 includes a first abutting portion 213 and a second abutting portion 214. The first abutting portion 213 is close to the input end 211. The second abutting portion 214 is close to the output end 212. The first abutting portion 213 and the second abutting portion 214 are both used to abut against the inner wall of the terminal groove 101, so that there are two force points of interaction between the first terminal 21 and the inner wall of the terminal groove 101, so that the first terminal 21 can be more stably located in the terminal groove 101.

[0102] Therefore, the inner wall of the terminal groove 101 abuts against the first abutting portion 213 to limit the shaking of the portion of the first terminal 21 between the output end 212 and the second abutting portion 214 along the third direction Y, and the inner wall of the terminal groove 101 abuts against the second abutting portion 214 to limit the shaking of the portion of the first terminal 21 between the first abutting portion 213 and the second abutting portion 214 along the third direction Y.

[0103] See also Figure 7 and Figure 8 In some embodiments, along the third direction Y, from the output end 212 to the second abutting portion 214 , the distance between the first terminal 21 and the tongue plate 12 gradually decreases. That is, the distance between the output end 212 and the tongue plate 12 is greater than the distance between the second abutting portion 214 and the tongue plate 12 .

[0104] During the plugging process between the docking connector and the electrical connector 100 , the docking connector electrically contacts the output end 212 , causing the output end 212 to move toward the tongue plate 12 . Similarly, after the docking connector is unplugged from the electrical connector 100 , the output end 212 rebounds and moves back toward the tongue plate 12 .

[0105] Therefore, the first terminal 21 between the output end 212 and the second abutting portion 214 is tilted to facilitate the insertion and removal of the docking connector into and from the slot 103. In addition, the pushing force of the inner wall of the terminal slot 101 on the second abutting portion 214 is perpendicular to the first terminal 21 between the output end 212 and the second abutting portion 214, that is, the pushing force of the inner wall of the terminal slot 101 on the second abutting portion 214 is tilted relative to the third direction Y; and the pushing force of the inner wall of the terminal slot 101 on the first abutting portion 213 is parallel to the third direction Y. In this way, during the insertion and removal of the docking connector into and from the slot 103, the force on the first abutting portion 213 will not affect the part of the first terminal 21 between the output end 212 and the second abutting portion 214, that is, the part of the first terminal 21 between the output end 212 and the second abutting portion 214 is not easy to shake along the third direction Y due to the insertion and removal of the docking connector.

[0106] It is understandable that if the portion of the first terminal 21 located in the terminal slot 101 is straight, when the output end 212 is subjected to force, both the first abutment portion 213 and the second abutment portion 214 are subjected to force, and repeated plugging and unplugging can easily cause the first abutment portion 213 and the second abutment portion 214 to wear out, causing the first terminal 21 to shake in the terminal slot 101.

[0107] In some embodiments, the first terminal 21 is provided with an escape groove 2101. The escape groove 2101 is provided on the side of the first terminal 21 facing the tongue plate 12 to increase the distance between the symmetrical first terminal 21 and the second terminal 22 at the escape groove 2101 along the third direction Y. The escape groove 2101 is opened between the first abutting portion 213 and the second abutting portion 214.

[0108] Along the third direction Y, between the symmetrical first terminal 21 and the second terminal 22, the distances between the first abutting portion 213, the second abutting portion 214 and the second terminal 22 are the shortest, and the avoidance groove 2101 increases the distance between the first terminal 21 and the second terminal 22 between the first abutting portion 213 and the second abutting portion 214 to reduce the interference between the first terminal 21 and the second terminal 22.

[0109] In some embodiments, along the second direction X, when the first terminal 21 is inserted into the terminal slot 101, a portion of the first terminal 21 between the input end 211 and the second abutment portion 214 is exposed to the functional hole 102, that is, a projection of a portion of the first terminal 21 between the input end 211 and the second abutment portion 214 along the second direction X at least partially overlaps with the functional hole 102, so that the first terminal 21 can be at least partially exposed to the functional hole 102.

[0110] See also Figure 7In some embodiments, the length of the functional hole 102 along the first direction Z is H1. The length of the first terminal 21 along the first direction Z is H2. H1:H2 is 0.4-0.5, and the functional hole 102 can expose more of the first terminal 21 to the functional hole 102 without affecting the rigidity of the housing 10, so as to reduce the crosstalk between two adjacent first terminals 21.

[0111] In some embodiments, H1 is 3.5 mm to 4.5 mm. When H1 is larger, the area of ​​the first terminal 21 exposed to the functional hole 102 is larger, however, the rigidity of the housing 10 is reduced and the housing 10 is more easily deformed. In some embodiments, H1 is 3.93 mm.

[0112] In some embodiments, H2 is 8.00 mm to 8.5 mm to meet the design requirements of the first terminal 21 having a longer length. In some embodiments, H2 is 8.39 mm.

[0113] In some embodiments, the length of the functional hole 102 along the third direction Y is W1. When the first terminal 21 is inserted into the terminal slot 101, the length of the area corresponding to the first terminal 21 and the functional hole 102 along the third direction Y is W21. W1:W21 is 0.3-0.45, and the functional hole 102 can expose more of the first terminal 21 to the functional hole 102 without affecting the rigidity of the housing 10, so as to reduce the crosstalk between two adjacent first terminals 21.

[0114] In some embodiments, the length of the area corresponding to the first terminal 21 and the functional hole 102 along the third direction Y is W21, which means: the area with the longest length along the third direction Y among the areas corresponding to the first terminal 21 and the functional hole 102, that is, the length of the first abutment portion 213 along the third direction Y.

[0115] Along the third direction Y, the length W1 of the functional hole 102 is less than the length W21 of the first abutting portion 213 , thereby limiting the first terminal 21 in the second direction X, preventing the first terminal 21 from passing through the functional hole 102 , and preventing the first terminal 21 from shaking along the second direction X. It can be understood that if the length W1 of the functional hole 102 is greater than the length W21 of the first abutting portion 213 , the first terminal 21 can pass through the functional hole 102 along the second direction X, affecting the stability of the connection of the first terminal 21 in the second direction X.

[0116] In some embodiments, W1 is 0.25 mm to 0.35 mm. When W1 is larger, the area of ​​the first terminal 21 exposed to the functional hole 102 is larger.

[0117] In some embodiments, the length of the terminal slot 101 along the first direction Z is H3. Along the first direction Z, the terminal slot 101 is arranged to penetrate the housing 10, that is, the length of the side wall of the housing 10 along the first direction Z is H3. H1:H3 is 0.35-0.55, and along the first direction Z, the length ratio of the terminal slot 101 to the functional hole 102 is appropriate, that is, the ratio between the side wall of the housing 10 and the functional hole 102 is appropriate, so that the opening length of the functional hole 102 is appropriate, and the functional hole 102 can expose more of the first terminal 21 to the functional hole 102 without affecting the rigidity of the housing 10, so as to reduce the crosstalk between two adjacent first terminals 21.

[0118] In some embodiments, H3 is 8.5 mm to 9 mm, the length H3 of the terminal slot 101 along the first direction Z is adapted to the length H2 of the first terminal 21 along the first direction Z, and a larger portion of the first terminal 21 is inserted into the terminal slot 101 to prevent the first terminal 21 from shaking.

[0119] In some embodiments, the length of the area corresponding to the terminal slot 101 and the functional hole 102 along the third direction Y is W31, that is, the length of the end of the terminal slot 101 close to the input end 211 along the third direction Y is W31. The length of the end of the terminal slot 101 close to the output end 212 along the third direction Y is W32. The length of the first abutment portion 213 along the third direction Y is W21. The length of the second abutment portion 214 along the third direction Y is W22. W31≥W21, so that the end of the terminal slot 101 close to the input end 211 can accommodate and abut the first abutment portion 213. W32≥W22, so that the end of the terminal slot 101 close to the output end 212 can accommodate and abut the second abutment portion 214.

[0120] In some embodiments, W31>W32, W21>W22, the first abutment portion 213 is closer to the circuit board 200 than the first abutment portion 213, and during the process in which the output end 212 is elastically moved along the third direction Y under the influence of the plugging and unplugging of the docking connector, the first abutment portion 213 abuts against the inner wall of the terminal groove 101 more stably, thereby more stably supporting one end of the first terminal 21 close to the circuit board 200.

[0121] Please refer to Figure 8 In some embodiments, W21 is 0.7 mm to 0.8 mm to meet the design requirements of the first terminal 21 .

[0122] In some embodiments, W22 is 0.6 mm to 0.7 mm to meet the design requirements of the first terminal 21 .

[0123] In some embodiments, W31 is equal to W21 , and W32 is equal to W22 , so that the terminal groove 101 can accommodate and abut the first abutting portion 213 and the second abutting portion 214 .

[0124] See also Figure 6 , the length T of the first terminal 21 along the second direction X is 0.12 mm. The length of the terminal groove 101 along the second direction X is greater than or equal to T to accommodate the first terminal 21 .

[0125] See also Figure 7 and Figure 8 In some embodiments, the length of the portion of the first terminal 21 between the output end 212 and the second abutting portion 214 along the first direction Z is H21. The length of the portion of the first terminal 21 between the first abutting portion 213 and the second abutting portion 214 along the first direction Z is H22. The length of the portion of the first terminal 21 between the output end 212 and the first abutting portion 213 along the first direction Z is H23. The distance between the output end 212 and the tongue plate 12 is L. L is 0.50 mm to 0.56 mm, H21 is 3 mm to 3.9 mm, H22 is 3.3 mm to 3.75 mm, and H23 is 1.05 mm to 1.4 mm, so as to meet the design requirements of the first terminal 21.

[0126] The near-end crosstalk is usually caused by electromagnetic field interference on adjacent signal lines, that is, electromagnetic field interference between adjacent first terminals 21 , which causes the quality of the signal received by the male end to decrease.

[0127] See also Fig. 9 , the dotted line in the figure represents the specified decibel value of crosstalk, and the solid line in the figure represents the decibel value of crosstalk at different frequencies measured after the connector assembly in this application is connected to the test equipment. Within the 8GHz frequency, the maximum decibel of near-end crosstalk is -36.55dB, which meets the specified requirement within -32dB. Within the frequency range of 8GHz to 10GHz, the maximum decibel value of near-end crosstalk is -32.42dB, which meets the specified specification requirement within -20dB.

[0128] Therefore, during the signal transmission process of the electrical connector 100 of the present application, the near-end crosstalk measured meets the design requirements.

[0129] In addition, those skilled in the art should recognize that the above embodiments are only used to illustrate the present application and are not intended to be limiting of the present application. As long as they are within the spirit and scope of the present application, appropriate changes and modifications to the above embodiments are within the scope of the present application.

Claims

1. An electrical connector, characterized in that: include: A housing, comprising a functional hole and a plurality of terminal slots, wherein the terminal slots are arranged through the housing along a first direction, and the plurality of terminal slots are arranged at intervals along a second direction, and the functional hole extends along the second direction to connect the plurality of terminal slots, and the second direction is perpendicular to the first direction; The signal transmission mechanism includes a plurality of first terminals, wherein the first terminals include an input end and an output end, wherein the input end is used to electrically connect to a circuit board, and the output end is used to electrically connect to a docking connector, and each of the first terminals is inserted into one of the terminal slots so that each of the first terminals is at least partially exposed to the functional hole.

2. The electrical connector according to claim 1, wherein: The length of the functional hole along the first direction is H1, the length of the first terminal along the first direction is H2, and H1:H2 is 0.4-0.6; The length of the functional hole along the third direction is W1, and the third direction is perpendicular to the first direction and the second direction. When the first terminal is inserted into the terminal slot, the length of the area corresponding to the first terminal and the functional hole along the third direction is W21, and W1:W21 is 0.3-0.

5.

3. The electrical connector according to claim 2, wherein: The length of the terminal groove along the first direction is H3, and H1:H3 is 0.35-0.

55.

4. The electrical connector according to any one of claims 1 to 3, characterized in that: The housing is connected with a tongue plate, the tongue plate extends along the second direction, and the terminal slot passes through at least a portion of the tongue plate, so that the first terminal portion in each terminal slot is embedded in the tongue plate.

5. The electrical connector according to claim 4, characterized in that: The first terminal comprises a first abutting portion and a second abutting portion, the first abutting portion is close to the input end, the second abutting portion is close to the output end, and the first abutting portion and the second abutting portion are both used to abut against the inner wall of the terminal groove; Along the third direction, from the output end to the second abutting portion, the distance between the first terminal and the tongue plate gradually decreases, so that the distance between the output end and the tongue plate is greater than the distance between the second abutting portion and the tongue plate.

6. The electrical connector according to claim 5, characterized in that: The first terminal is provided with an avoidance groove, the avoidance groove is provided on a side of the first terminal facing the tongue plate, and the avoidance groove is opened between the first abutting portion and the second abutting portion.

7. The electrical connector according to claim 4, wherein: The signal transmission mechanism also includes a plurality of second terminals, defining the tongue plate as a symmetry center, the terminal grooves being provided on opposite sides of the symmetry center along a third direction, each of the second terminals being inserted into a terminal groove, and each of the second terminals being symmetrically arranged with a first terminal along the tongue plate.

8. The electrical connector according to claim 1, wherein: The shell is connected with a plurality of ribs, the ribs are arranged on the functional holes and are used to separate two adjacent first terminals, the functional holes between two adjacent ribs are connected to the terminal slots, and the plurality of first terminals between two adjacent ribs cooperate to transmit the same type of signals.

9. The electrical connector according to claim 1, wherein: A slot is provided at one end of the housing away from the circuit board, the output end is located in the slot, and the slot is used to plug the docking connector so that the docking connector electrically contacts the first terminal to electrically connect the circuit board.

10. The electrical connector according to claim 9, wherein: The housing is provided with a positioning groove, the positioning groove is located in the slot, and the positioning groove is used to accommodate the insertion of the positioning column of the docking connector when the docking connector is inserted into the slot.

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