Network connector

Abstract

The utility model discloses a network connector, which is characterized in that a plurality of plugging modules arranged at intervals are arranged in a base of the network connector, a plurality of plugging interfaces are arranged at the front end of the base, the plugging interfaces of multiple ports on the base are sequentially arranged at intervals, each plugging interface is provided with an upper interface and a lower interface, and the upper interface and the lower interface are correspondingly arranged up and down; the multiple upper connectors and the multiple lower connectors are arranged at intervals in the left-right direction. The plugging module comprises an upper terminal carrier, a lower terminal carrier, an upper RJ terminal and a lower RJ terminal, the upper terminal carrier and the lower terminal carrier are arranged on the upper surface and the lower surface of the circuit board respectively, the upper terminal carrier and the lower terminal carrier are combined in an up-down buckling mode, and the circuit board is clamped after the upper terminal carrier and the lower terminal carrier are buckled up and down; the side edge of the upper terminal carrier is provided with a first locking block extending towards the circuit board. According to the utility model, the IM terminal carrier is shared up and down without fool-proof; and the rear shell and the PCB adopt a clamping elastic sheet design, so that lossless disassembly and assembly are realized.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a network connector. Background Art

[0002] Connectors are mainly installed on computer peripherals, servers, routers, switching equipment and other products for data transmission and peripheral connection, and are widely used in the fields of network, communication, automatic control, etc. With the increasing competition in consumer products and the continuous increase in automation, the functions of electronic products are becoming more and more abundant, the market is diversified, and the requirements for product structure are increasing. RJ connector multi-port products have also changed from traditional manual parts to fully automatic parts to reduce costs. In this context, the existing shell is spot welded to the circuit board for grounding, and the shell (back shell) is spot welded to the ground wire led out of the PCB. When disassembly or rework is required, the shell needs to melt the solder joints before disassembly, which is easy to damage the internal and external structures. The existing Insert molding terminal carrier adopts a single-piece non-foolproof design, and the upper and lower terminal carriers require two sets of molding. Utility Model Content

[0003] In order to solve the problems existing in the prior art, the purpose of the utility model is to provide a network connector, wherein hooks and grooves are added on both sides of the upper and lower terminal carriers (inserts), and notches (avoidance grooves) are opened on the PCB corresponding to the hooks, thereby strengthening the assembly of the upper and lower inserts and the PCB.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A network connector includes a base, a plurality of plug-in modules arranged at intervals are arranged in the base, a plurality of plug-in interfaces are arranged at the front end of the base, the plug-in interfaces of multiple ports on the base are arranged at intervals in sequence, the plug-in interfaces have an upper interface and a lower interface, the upper interface and the lower interface are arranged up and down correspondingly, and the upper interface and the lower interface are both arranged at intervals from left to right;

[0006] The plug-in module comprises an upper terminal carrier, a lower terminal carrier, an upper RJ terminal, and a lower RJ terminal. The upper terminal carrier and the lower terminal carrier are respectively arranged on the upper and lower surfaces of the circuit board. The upper terminal carrier and the lower terminal carrier are buckled together, and the upper terminal carrier and the lower terminal carrier are buckled together to clamp the circuit board.

[0007] A first locking block extending toward the circuit board is provided on the side of the upper terminal carrier, the first locking block is arranged on an end portion of a surface close to the circuit board, and a first hook protruding inward is provided on an end of the first locking block away from the circuit board; an avoidance groove for the first locking block to pass through is provided on the side wall of the circuit board, and the first locking block is clamped in the avoidance groove of the circuit board;

[0008] A first snap groove is provided on the side wall of the upper terminal carrier away from one end of the first locking block, and the first snap groove matches and corresponds to the avoidance groove on the same side of the circuit board; the first snap groove and the avoidance groove on the same side have a longitudinally coaxial through groove, and a first snap block protruding outward is provided in the first snap groove.

[0009] Furthermore, in some embodiments, a second locking block extending toward the circuit board is provided on the side of the lower terminal carrier, the second locking block is arranged on an end portion of a side close to the circuit board, and an end of the second locking block away from the circuit board is provided with a second hook protruding inward; an avoidance groove for the second locking block to pass through is provided on the side wall of the circuit board, and the second locking block is clamped in the avoidance groove of the circuit board; and avoidance grooves are respectively provided on the side walls on both sides of the circuit board.

[0010] Further, in some embodiments, a second locking block corresponding to the first hook on the upper terminal carrier is provided in the second locking groove on the lower terminal carrier, the first locking block of the upper terminal carrier is locked in the second locking groove of the lower terminal carrier, the first hook of the upper terminal carrier is locked on the second locking block of the lower terminal carrier, and the first hook of the upper terminal carrier is snap-connected with the second locking block of the lower terminal carrier; the second hook of the lower terminal carrier and the first locking block of the upper terminal carrier have the same matching locking structure, and the upper terminal carrier is a structure after the plane of the lower terminal carrier is flipped 180°.

[0011] Further, in some embodiments, the connector module includes an insulator and a circuit board. The plug-in end of the connector module is provided with a terminal carrier assembly, the terminal carrier assembly includes a lower terminal carrier and an upper terminal carrier, a circuit board is provided between the lower terminal carrier and the upper terminal carrier, an upper RJ terminal is provided on the upper terminal carrier, and a lower RJ terminal is provided on the lower terminal carrier. The upper RJ terminal welding end and the lower RJ terminal welding end are respectively welded on the pads of the circuit board.

[0012] Further, in some embodiments, a corner (edge ​​corner) of the lower terminal carrier close to the circuit board is provided with a positioning column extending upwardly, and a corner of the lower terminal carrier close to the circuit board and away from the other end of the same side of the positioning column is provided with an alignment hole;

[0013] A group of positioning columns protruding upward are provided at the diagonal corners (corners) on one side of the lower terminal carrier close to the circuit board, and the two positioning columns are respectively arranged at the diagonal positions on the side close to the circuit board; a group of alignment holes are provided at the other diagonal corners on the side of the lower terminal carrier close to the circuit board, and the two alignment holes at the diagonal positions on the lower terminal carrier and the two positioning columns at the other diagonal positions are cross-arranged, and the alignment holes and the positioning columns are separated and arranged in sequence at the corners of the side close to the circuit board.

[0014] Furthermore, in some embodiments, the lower terminal carrier and the upper terminal carrier are provided with positioning posts and alignment hole structures that match each other, the upper terminal carrier is provided with positioning posts, and the lower terminal carrier is provided with alignment holes that match each other;

[0015] A positioning column is arranged on one side of the lower terminal carrier close to the circuit board, and a positioning hole corresponding to the positioning column of the lower terminal carrier is opened on one side of the upper terminal carrier close to the circuit board.

[0016] Further, in some embodiments, the positioning post of the upper terminal carrier passes through the through hole on the circuit board and is inserted into the alignment hole of the lower terminal carrier, and the positioning post of the lower terminal carrier passes through the through hole on the circuit board and is inserted into the alignment hole of the upper terminal carrier;

[0017] The alignment holes of the lower terminal carrier and the positioning columns of the upper terminal carrier have the same matching structure.

[0018] Furthermore, in some embodiments, the upper terminal carrier is a structure obtained by rotating the plane of the lower terminal carrier 180°, and the upper terminal carrier and the lower terminal carrier are matched and arranged face to face in an upper and lower manner; a through hole for the positioning column to pass through is provided on the circuit board; through holes are provided on both sides of the avoidance groove on the circuit board; and a total of four through holes are opened on both sides of the circuit board.

[0019] Further, in some embodiments, a row of pads are arranged at intervals on both sides of the circuit board, the upper RJ terminal welding end and the lower RJ terminal welding end are welded and arranged on the pads, and the free ends of the upper RJ terminal and the lower RJ terminal respectively penetrate the upper terminal carrier and the lower terminal carrier and then extend and are arranged outside the terminal carrier;

[0020] The front and rear sides of the base are respectively provided with a front shell and a rear shell, and the front shell and the rear shell are combined to cover the outer side of the base;

[0021] A base is embedded in the accommodation space formed by the front shell and the rear shell; a plurality of plug-in modules are arranged in sequence in the base, and a middle partition is provided between adjacent plug-in modules; a tear-off grounding piece that is bent and extended in the opposite direction is provided on the middle partition, and the tear-off grounding piece extends to the left and right from the middle partition respectively, and the tear-off grounding piece on the middle partition is tightly arranged on the grounding plate of the circuit board;

[0022] The front end of the plug module is provided with an upper RJ terminal and a lower RJ terminal distributed up and down, the upper RJ terminal is arranged in the upper interface, and the lower RJ terminal is arranged in the lower interface;

[0023] A circuit board is arranged on the upper side of the insulator, and welding ends of the upper RJ terminal and the lower RJ terminal are arranged on the circuit board.

[0024] Furthermore, in some embodiments, the rear shell is provided with a clamping spring facing the circuit board, the clamping spring is tightly arranged on the upper and lower surfaces of the circuit board, the clamping spring is clamped on the circuit board, and the clamping spring is clamped with the upper and lower grounding plates of the circuit board.

[0025] The utility model is suitable for the internal structure of connectors, and is applied to RJ network connectors, USB, etc. The rear shell (shell) has no spot welding on the outside. When the shell needs to be disassembled or repaired in case of failure, there is no need to destroy the internal and external structures. It can be disassembled without loss and can be recycled, which is intended to save costs. The upper and lower terminal carriers Insert molding adopt a single-piece same-mold (single model) design, and both sides are buckled after flipping. The upper and lower IM terminal carriers are shared, and there is no need to prevent fooling.

[0026] The utility model has a tear-off grounding plate on the middle partition (grounding plate part), which is soldered with the PCB, making the grounding more reliable; the middle partition part is torn and spot-welded with the PCB grounding plate. The rear shell (housing) and the PCB adopt a clamping spring (upper and lower spring clamping) design, which is effectively grounded and non-destructive disassembly; the housing and the PCB grounding clamping spring, the housing grounding has no solder joints, and non-destructive disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is an exploded schematic diagram of an embodiment of the utility model;

[0028] Figure 2 It is a three-dimensional schematic diagram of an embodiment of the utility model;

[0029] Figure 3 This is an exploded schematic diagram of the terminal carrier part of the embodiment of the utility model;

[0030] Figure 4 This is a schematic diagram of the structure of the spacer part in the embodiment of the utility model;

[0031] Figure 5 This is a schematic diagram of the assembly of the terminal carrier part of the embodiment of the utility model;

[0032] Figure 6 This is a cross-sectional structural diagram of the terminal carrier portion of an embodiment of the utility model;

[0033] Figure 7 This is a schematic diagram of the structure of the plug-in module part of the embodiment of the utility model;

[0034] Figure 8 for Figure 4 The structural diagram of part B;

[0035] Fig. 9 It is a cross-sectional schematic diagram of a clamping spring sheet according to an embodiment of the utility model;

[0036] Fig.10 for Fig. 9 Schematic diagram of the structure of part C;

[0037] Fig.11 It is a schematic diagram of the insertion of the positioning column part of the embodiment of the utility model.

[0038] Description of labels:

[0039] Base 11, front shell 12, rear shell 13, upper interface 14, lower interface 15, upper RJ terminal 16, lower RJ terminal 17, circuit board 18, middle partition 19, insulator 21, base 31, connector module 51, upper terminal carrier 52, lower terminal carrier 53, avoidance groove 54, through hole 55, solder pad 56, first snap groove 57, first snap block 58, first locking block 59, first hook 61, positioning column 62, second snap block 63, second snap groove 64, second hook 66, second locking block 67, alignment hole 68, tear-off grounding sheet 72, clamping spring 74. DETAILED DESCRIPTION

[0040] In order to further understand the features, technical means, and specific purposes and functions achieved by the present invention, the embodiments in this application and the features in the embodiments can be combined with each other without conflict. In order to further understand the features, technical means, and specific purposes and functions achieved by the present invention, and to analyze the advantages and spirit of the present invention, a further understanding is obtained through the following detailed description of the present invention in combination with the accompanying drawings and specific implementation methods.

[0041] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "front", "rear" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0042] See also Figure 2 As shown, attached Figure 2 The product shape of a network connector of the present application is shown, and a plurality of plug-in interfaces are provided at the front end (plug-in opening end) of the base 11. The plug-in interfaces of the multiple ports on the base 11 are arranged in sequence, and the plug-in interfaces have an upper interface 14 and a lower interface 15. The upper interface 14 and the lower interface 15 are correspondingly arranged up and down, and both the upper interface 14 and the lower interface 15 are multiple and arranged in intervals from left to right.

[0043] See attached Figure 1 As shown, Figure 1It is a schematic diagram of the component decomposition of the present application, which includes a number of parallel arranged plug-in modules 51, the plug-in module 51 includes an insulator 21 and a circuit board 18, the plug-in end of the plug-in module 51 is provided with a terminal carrier assembly, the terminal carrier assembly includes a lower terminal carrier 53 and an upper terminal carrier 52, a circuit board 18 is provided between the lower terminal carrier 53 and the upper terminal carrier 52, an upper RJ terminal 16 is provided on the upper terminal carrier 52, and a lower RJ terminal 17 is provided on the lower terminal carrier 53, and the welding ends of the upper RJ terminal 16 and the lower RJ terminal 17 are respectively provided (welded) on the pads 56 of the circuit board 18.

[0044] See attached Figure 2 As shown, Figure 2 The three-dimensional appearance of the present application is shown. The plug module 51 includes an upper terminal carrier 52, a lower terminal carrier 53, an upper RJ terminal 16, and a lower RJ terminal 17. The upper terminal carrier 52 and the lower terminal carrier 53 are respectively arranged on the upper and lower surfaces of the circuit board 18. The upper terminal carrier 52 and the lower terminal carrier 53 are buckled together, and the upper terminal carrier 52 and the lower terminal carrier 53 are buckled up and down to clamp the circuit board 18. The upper terminal carrier 52 is a structure obtained by rotating the lower terminal carrier 53 by 180 degrees. The upper terminal carrier 52 and the lower terminal carrier 53 are matched up and down and arranged face to face.

[0045] See attached Figure 3 As shown, Figure 3 The specific structure of the terminal carrier of the present application is shown in the figure, a first locking block 59 extending toward the circuit board 18 is provided on the side of the upper terminal carrier 52, the first locking block 59 is arranged in the middle part (middle position) of the end of one side close to the circuit board 18, and the first locking block 59 is provided with a first hook 61 protruding inward (towards the inside) at the end away from the circuit board 18; an avoidance groove 54 for the first locking block 59 to pass through is opened on the side wall of the circuit board 18, and the first locking block 59 is clamped in the avoidance groove 54 of the circuit board 18.

[0046] A second locking block 67 extending toward the circuit board 18 is provided on the side of the lower terminal carrier 53. The second locking block 67 is arranged at the middle part of one end of the circuit board 18. The second locking block 67 is provided at one end away from the circuit board 18 and is provided with a second hook 66 protruding inward (toward the inside); an escape groove 54 for the second locking block 67 to pass through is provided on the side wall of the circuit board 18, and the second locking block 67 is clamped in the escape groove 54 of the circuit board 18. Furthermore, the side walls on both sides of the circuit board 18 are respectively provided with escape grooves 54.

[0047] A first buckle groove 57 is provided on the side wall (middle position) of the upper terminal carrier 52 away from the first buckle block 59. The first buckle groove 57 matches and corresponds to the avoidance groove 54 on the same side of the circuit board 18; see the attached Figure 6As shown, the first buckle groove 57 and the avoidance groove 54 on the same side have a longitudinally coaxial through groove, and a first clamping block 58 protruding outward (toward the outside) is provided in the first buckle groove 57.

[0048] See attached Figure 6 As shown, attached Figure 6 The matching structure related to the buckle of the present application is shown in the figure, and a second buckle block 63 corresponding to the first hook 61 on the upper terminal carrier 52 is provided in the second buckle groove 64 on the lower terminal carrier 53, and the first locking block 59 of the upper terminal carrier 52 is buckled (pierced) in the second buckle groove 64 of the lower terminal carrier 53, and the first hook 61 of the upper terminal carrier 52 is buckled on the second buckle block 63 of the lower terminal carrier 53, and the first hook 61 of the upper terminal carrier 52 is buckled and connected with the second buckle block 63 of the lower terminal carrier 53; the second hook 66 of the lower terminal carrier 53 and the first block 58 of the upper terminal carrier 52 have the same matching buckle (buckle) structure, and the upper terminal carrier 52 is the structure after the plane of the lower terminal carrier 53 is flipped 180°.

[0049] Further, in one embodiment, see the attached Figure 5 As shown, attached Figure 5 The relevant structure of the positioning column 62 of the present application is shown in the figure. The corner (corner) of the side of the lower terminal carrier 53 close to the circuit board 18 is provided with a positioning column 62 protruding upward, and the corner of the side of the lower terminal carrier 53 close to the circuit board 18 away from the positioning column 62 is provided with an alignment hole 68. Preferably, the diagonal corners (corners) of the side of the lower terminal carrier 53 close to the circuit board 18 are provided with a group of positioning columns 62 protruding upward, and the two positioning columns 62 are respectively arranged at the diagonal positions of the side close to the circuit board 18; the other diagonal corner of the side of the lower terminal carrier 53 close to the circuit board 18 is provided with a group of alignment holes 68, and the two diagonal alignment holes 68 on the lower terminal carrier 53 are arranged crosswise with the two positioning columns 62 on the other diagonal position, and the alignment holes 68 and the positioning columns 62 are separated and arranged in sequence at the corners of the side close to the circuit board 18.

[0050] Further, in one embodiment, see the attached Fig.11 As shown, Fig.11 The plug-in structure related to the positioning column 62 of the present application is displayed. The lower terminal carrier 53 and the upper terminal carrier 52 are provided with positioning columns 62 and alignment holes 68 structures that match each other. The upper terminal carrier 52 is provided with positioning columns 62, and the lower terminal carrier 53 is provided with alignment holes 68 that match each other. The lower terminal carrier 53 is provided with a positioning column 62 on one side close to the circuit board 18, and the upper terminal carrier 52 is provided with an alignment hole 68 that matches the positioning column 62 of the lower terminal carrier 53 on one side close to the circuit board 18.

[0051] The positioning post 62 of the upper terminal carrier 52 passes through the through hole 55 on the circuit board 18 and is inserted into the alignment hole 68 of the lower terminal carrier 53. The positioning post 62 of the lower terminal carrier 53 passes through the through hole 55 on the circuit board 18 and is inserted into the alignment hole 68 of the upper terminal carrier 52. The alignment hole 68 of the lower terminal carrier 53 and the positioning post 62 of the upper terminal carrier 52 have the same matching structure.

[0052] Furthermore, in one embodiment, a through hole 55 for the positioning column 62 to pass through is provided on the circuit board 18; preferably, through holes 55 are provided on both sides of the avoidance groove 54 on the circuit board 18; further, four through holes 55 are provided on both sides of the circuit board 18.

[0053] A row of solder pads 56 are arranged at intervals on both sides of the circuit board 18. The soldering ends of the upper RJ terminal 16 and the lower RJ terminal 17 are soldered on the solder pads 56. The free ends of the upper RJ terminal 16 and the lower RJ terminal 17 respectively penetrate the upper terminal carrier 52 and the lower terminal carrier 53 and then extend to the outside of the terminal carrier.

[0054] See attached Figure 2 As shown, attached Figure 2 The product appearance structure of an embodiment of the utility model is shown; a network connector of the present application includes a base 11, and a front shell 12 and a rear shell 13 are respectively provided on the front and rear sides of the base 11, and the front shell 12 and the rear shell 13 are combined to cover the outer side of the base 11.

[0055] Further, in one embodiment, see the attached Figure 7 As shown, attached Figure 7 The structure of the connector module 51 of the embodiment of the utility model is shown; a base 11 is embedded in the accommodation space formed by the front shell 12 and the rear shell 13; a plurality of connector modules 51 are arranged in sequence in the base 11, and a middle partition 19 is provided between adjacent connector modules 51; the front end of the connector module 51 is provided with an upper RJ terminal 16 and a lower RJ terminal 17 distributed up and down, the upper RJ terminal 16 is arranged in the upper interface 14, and the lower RJ terminal 17 is arranged in the lower interface 15. A circuit board 18 is provided on the upper surface of the insulator 21, and the upper RJ terminal 16 and the lower RJ terminal 17 (welding end) are arranged on the (welding) circuit board 18.

[0056] See attached Figure 4 , Attachment Figure 8 As shown, attached Figure 4 , Attachment Figure 8 The figure shows the grounding structure of the partition 19 in the embodiment of the utility model; the middle partition 19 is provided with a reversely bent and extended tear-off grounding piece 72, which extends to the left and right from the middle partition 19 respectively, and the tear-off grounding piece 72 on the middle partition 19 is tightly arranged on the grounding plate of the circuit board 18.

[0057] See attached Fig. 9 , Attachment Fig.10 As shown, attached Fig. 9 , Attachment Fig.10 The figure shows the grounding structure of the clamping spring 74 of the embodiment of the utility model; a clamping spring 74 facing the circuit board 18 is provided on the rear shell 13, and the clamping spring 74 is tightly arranged on the upper and lower surfaces of the circuit board 18, that is, the clamping spring 74 is clamped on the circuit board 18, and the clamping spring 74 is clamped with the grounding plates on the upper and lower sides of the circuit board 18.

[0058] In the present application, a tear-off grounding plate 72 is provided on the partition plate 19 (grounding plate part), and the tear-off grounding plate 72 is welded to the grounding plate of the circuit board 18; the rear shell 13 (housing) and the circuit board 18 (grounding plate) of the present application are grounded by clamping upper and lower spring plates.

[0059] The above embodiments only express several preferred implementations of the utility model, and the descriptions thereof are relatively specific and detailed. It should be understood that the utility model is not limited to the forms disclosed herein, and should not be regarded as the exclusion of other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge in the relevant field, and cannot be understood as limiting the scope of the utility model. It should be pointed out that for ordinary technicians in this field, several deformations and improvements can be made without departing from the concept of the utility model. The changes and modifications made by the personnel in this field do not depart from the spirit and scope of the utility model, and all of these belong to the protection scope of the claims attached to the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A network connector, comprising: A base (11), wherein a plurality of spaced-apart plug-in modules (51) are arranged in the base (11), a plurality of plug-in interfaces are arranged at a front end of the base (11), the plug-in interfaces of the multiple ports on the base (11) are spaced-apart in sequence, the plug-in interfaces have an upper interface (14) and a lower interface (15), the upper interface (14) and the lower interface (15) are arranged up and down correspondingly, and the upper interface (14) and the lower interface (15) are both multiple and spaced-apart from left to right; The plug-in module (51) comprises an upper terminal carrier (52), a lower terminal carrier (53), an upper RJ terminal (16), and a lower RJ terminal (17); the upper terminal carrier (52) and the lower terminal carrier (53) are respectively arranged on the upper and lower surfaces of the circuit board (18); the upper terminal carrier (52) and the lower terminal carrier (53) are buckled together in an upper and lower manner; and the upper terminal carrier (52) and the lower terminal carrier (53) are buckled together in an upper and lower manner to clamp the circuit board (18); A first locking block (59) extending toward the circuit board (18) is provided on the side of the upper terminal carrier (52); the first locking block (59) is arranged on an end portion of a side close to the circuit board (18); an end of the first locking block (59) away from the circuit board (18) is provided with a first hook (61) protruding inward; an avoidance groove (54) for the first locking block (59) to pass through is provided on the side wall of the circuit board (18); the first locking block (59) is clamped in the avoidance groove (54) of the circuit board (18); A first snap groove (57) is provided on the side wall of the upper terminal carrier (52) away from the first locking block (59), and the first snap groove (57) corresponds to the position of the avoidance groove (54) on the same side of the circuit board (18); the first snap groove (57) and the avoidance groove (54) on the same side have a longitudinally coaxial through groove, and a first locking block (58) protruding outward is provided in the first snap groove (57).

2. A network connector according to claim 1, characterized in that: A second locking block (67) extending toward the circuit board (18) is provided on the side of the lower terminal carrier (53); the second locking block (67) is arranged on an end portion of a surface close to the circuit board (18); and a second hook (66) protruding inwards is provided at an end of the second locking block (67) away from the circuit board (18); The side wall of the circuit board (18) is provided with the avoidance groove (54) for the second locking block (67) to pass through, and the second locking block (67) is clamped in the avoidance groove (54) of the circuit board (18); the side walls on both sides of the circuit board (18) are respectively provided with the avoidance grooves (54).

3. A network connector according to claim 1, characterized in that: A second latching block (63) matching with the first latching hook (61) on the upper terminal carrier (52) is provided in the second latching groove (64) on the lower terminal carrier (53); the first locking block (59) of the upper terminal carrier (52) is latched in the second latching groove (64) of the lower terminal carrier (53); the first latching hook (61) of the upper terminal carrier (52) is latched on the second latching block (63) of the lower terminal carrier (53); the first latching hook (61) of the upper terminal carrier (52) is latched and connected with the second latching block (63) of the lower terminal carrier (53); The second hook (66) of the lower terminal carrier (53) and the first clamping block (58) of the upper terminal carrier (52) have the same matching snap-fit ​​structure, and the upper terminal carrier (52) is a structure obtained by flipping the plane of the lower terminal carrier (53) by 180 degrees.

4. A network connector according to claim 1, characterized in that: The plug-in module (51) comprises an insulator (21) and a circuit board (18); a terminal carrier assembly is provided at the plug-in end of the plug-in module (51); the terminal carrier assembly comprises a lower terminal carrier (53) and an upper terminal carrier (52); the circuit board (18) is provided between the lower terminal carrier (53) and the upper terminal carrier (52); the upper RJ terminal (16) is provided on the upper terminal carrier (52); the lower RJ terminal (17) is provided on the lower terminal carrier (53); the welding end of the upper RJ terminal (16) and the welding end of the lower RJ terminal (17) are respectively provided on the soldering pad (56) of the circuit board (18).

5. The network connector according to claim 1, characterized in that: A positioning column (62) protruding upward is provided at a corner of one side of the lower terminal carrier (53) close to the circuit board (18), and an alignment hole (68) is provided at a corner of the other end of the side of the lower terminal carrier (53) close to the circuit board (18) away from the positioning column (62); A group of positioning columns (62) protruding upward are provided at diagonal corners on one side of the lower terminal carrier (53) close to the circuit board (18), and two positioning columns (62) are respectively arranged at diagonal positions on the side of the lower terminal carrier (53) close to the circuit board (18); a group of alignment holes (68) are provided at the other diagonal corners on the side of the lower terminal carrier (53) close to the circuit board (18), and the two alignment holes (68) at the diagonal positions on the lower terminal carrier (53) and the two positioning columns (62) at the other diagonal positions are arranged crosswise, and the alignment holes (68) and the positioning columns (62) are separated and arranged in sequence at the corners of the side close to the circuit board (18).

6. A network connector according to claim 5, characterized in that: The lower terminal carrier (53) and the upper terminal carrier (52) are provided with the positioning column (62) and the alignment hole (68) structure that match and correspond to each other; the upper terminal carrier (52) is provided with the positioning column (62), and the lower terminal carrier (53) is provided with the alignment hole (68) that matches and corresponds thereto; The positioning column (62) is provided on the side of the lower terminal carrier (53) close to the circuit board (18), and the alignment hole (68) corresponding to the positioning column (62) of the lower terminal carrier (53) is opened on the side of the upper terminal carrier (52) close to the circuit board (18).

7. A network connector according to claim 6, characterized in that: The positioning column (62) of the upper terminal carrier (52) passes through the through hole (55) on the circuit board (18) and is inserted into the alignment hole (68) of the lower terminal carrier (53); the positioning column (62) of the lower terminal carrier (53) passes through the through hole (55) on the circuit board (18) and is inserted into the alignment hole (68) of the upper terminal carrier (52); The alignment hole (68) of the lower terminal carrier (53) and the positioning column (62) of the upper terminal carrier (52) have the same matching structure.

8. The network connector according to claim 1, characterized in that: The upper terminal carrier (52) is a structure obtained by rotating the lower terminal carrier (53) by 180 degrees in a plane, and the upper terminal carrier (52) and the lower terminal carrier (53) are arranged face to face in a matching manner up and down; the circuit board (18) is provided with a through hole (55) for the positioning column (62) to pass through; the through holes (55) are provided on both sides of the avoidance groove (54) on the circuit board (18); and a total of four through holes (55) are provided on both sides of the circuit board (18).

9. The network connector according to claim 1, characterized in that: Both sides of the circuit board (18) are provided with a row of solder pads (56) distributed at intervals, the soldering ends of the upper RJ terminal (16) and the lower RJ terminal (17) are soldered and arranged on the solder pads (56), and the free ends of the upper RJ terminal (16) and the lower RJ terminal (17) respectively penetrate the upper terminal carrier (52) and the lower terminal carrier (53) and then extend to be arranged outside the terminal carrier; A front shell (12) and a rear shell (13) are respectively provided on the front and rear sides of the base (11), and the front shell (12) and the rear shell (13) are combined to cover the outer side of the base (11); The base (11) is embedded in the accommodation space formed by the front shell (12) and the rear shell (13); a plurality of the plug-in modules (51) are arranged in sequence in the base (11), and a middle partition (19) is provided between adjacent plug-in modules (51); the middle partition (19) is provided with a tear-off grounding piece (72) that is bent and extended in the opposite direction, and the tear-off grounding piece (72) extends from the middle partition (19) to the left and right respectively, and the tear-off grounding piece (72) on the middle partition (19) is tightly arranged on the grounding plate of the circuit board (18); The front end of the plug-in module (51) is provided with the upper RJ terminal (16) and the lower RJ terminal (17) distributed up and down, the upper RJ terminal (16) is arranged in the upper interface (14), and the lower RJ terminal (17) is arranged in the lower interface (15); The circuit board (18) is arranged on the upper surface of the insulator (21), and the welding ends of the upper RJ terminal (16) and the lower RJ terminal (17) are arranged on the circuit board (18).

10. A network connector according to claim 9, characterized in that: The rear shell (13) is provided with a clamping spring (74) facing the circuit board (18); the clamping spring (74) is tightly arranged on the upper and lower surfaces of the circuit board (18); the clamping spring (74) is clamped on the circuit board (18); and the clamping spring (74) is clamped with the grounding plates on the upper and lower sides of the circuit board (18).

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