RJ45 waterproof connector

Abstract

The utility model discloses an RJ45 waterproof connector, comprising a plastic seat, the front end of which is provided with a pair of slots, and the rear end of which is provided with an installation groove communicated with the pair of slots; the terminal assembly comprises a plurality of terminals and an insulator integrally formed on the terminals through injection molding, elastic contact parts of the terminals are exposed at the front end of the insulator, pin parts of the terminals are exposed at the rear end of the insulator, the insulator is inserted and fixed in the mounting groove, and the elastic contact parts are exposed in the opposite insertion groove; the pin part extends out of the rear end face of the plastic seat, and a step groove is formed between the rear end face of the insulator and the rear end face of the plastic seat. And the sealing colloid is filled and cured in the step groove in a glue filling manner, covers the rear end face of the insulator, seals a gap between the insulator and the inner wall of the mounting groove, and further wraps the periphery of the front end of the pin part. The waterproof structure is stable in structure and has an excellent waterproof effect.

Description

Technical field:

[0001] The utility model relates to the technical field of connectors, in particular to an RJ45 waterproof connector. Background technology:

[0002] Electrical connectors are mainly used for electrical connection and signal transmission between devices, components, and systems. They are the basic components necessary to complete a system.

[0003] As we all know, the RJ45 connector is the most popular network interface standard connector in the world.

[0004] The Chinese utility model patent with patent number 202020792225.6 discloses an RJ connector, which includes: a housing; a grounding spring installed in the housing, a fixing block is arranged in the housing; a third slot is arranged on the housing, and a pin group (i.e., a terminal) is arranged in the third slot. Figure 1-3 As shown, the pin group (i.e., the terminal) is inserted into the third slot of the shell by plugging, which may cause the following problems: after the pin group (i.e., the terminal) is inserted into the third slot of the shell, a gap will be formed between them, which not only affects the structural strength and stability of the assembly of the two, but also affects the assembly efficiency, and also causes the RJ connector to have poor waterproof performance, which may easily cause a circuit short circuit after water ingress, and there is a risk of the equipment using the RJ connector being burned out due to water ingress.

[0005] In view of this, the inventor proposes the following technical solution. Utility model content:

[0006] The utility model aims to overcome the deficiencies of the prior art and provide an RJ45 waterproof connector.

[0007] In order to solve the above technical problems, the utility model adopts the following technical solutions: the RJ45 waterproof connector includes: a plastic seat, a front end of which is provided with a slot, and a rear end of the plastic seat is provided with a mounting groove connected to the slot; a terminal assembly, which includes a plurality of terminals and an insulator integrally injection-molded on the terminal, the elastic contact portion of the terminal is exposed at the front end of the insulator, and the pin portion of the terminal is exposed at the rear end of the insulator, the insulator is inserted and fixed in the mounting groove, the elastic contact portion is exposed in the slot, the pin portion extends out of the rear end face of the plastic seat, and a step groove is formed between the rear end face of the insulator and the rear end face of the plastic seat; a sealing colloid is filled and solidified in the step groove by means of glue injection, and covers the rear end face of the insulator, and the sealing colloid seals the gap between the insulator and the inner wall of the mounting groove, and the sealing colloid also wraps the front end periphery of the pin portion.

[0008] Furthermore, in the above technical solution, the plastic seat is molded with a sealing surface on the outer periphery of the slot of the slot. When the RJ45 waterproof connector is installed in the slot of the casing, the port of the slot is docked with the socket of the casing, and the sealing surface is sealed and assembled with the slot of the casing through waterproof glue.

[0009] Furthermore, in the above technical solution, the plastic seat is provided with a stepped groove on the periphery of the slot opening, and a sealing ring is provided on the outer cover of the stepped groove. When the front end of the RJ45 waterproof connector is installed in the socket of the casing, the sealing ring is assembled with the inner wall of the casing.

[0010] Furthermore, in the above technical solution, a fixing groove is also provided at the bottom of the stepped groove, and the inner side of the sealing ring is embedded in the fixing groove.

[0011] Furthermore, in the above technical solution, rail grooves are formed on the inner walls on both sides of the installation groove, and convex rails adapted to the rail grooves are formed on both sides of the insulator, and the convex rails are embedded in the rail grooves.

[0012] Furthermore, in the above technical solution, a grid plate is formed at the connection between the rear end of the pair of slots and the mounting slot, and a plurality of terminal slots are arranged on the grid plate, and the elastic contact parts of the terminals are all penetrated in the terminal slots.

[0013] Furthermore, in the above technical solution, a buckle position is formed at the lower end of the grid plate, and an undercut is provided on the insulator, and the undercut is buckled and positioned with the buckle position to form a limit in the insertion direction.

[0014] Furthermore, in the above technical solution, the upper and lower inner walls of the installation groove are both formed with retaining grooves, and the retaining portion at the rear end of the insulator is embedded in the retaining groove.

[0015] Furthermore, in the above technical solution, a plurality of buckle groups are arranged at the lower end of the plastic seat, and the buckle groups include at least two buckles that are relatively spaced apart; and a plurality of heightening strips are also arranged on the lower end surface of the plastic seat.

[0016] Furthermore, in the above technical solution, a first boss and a second boss are respectively formed on both sides of the plastic seat, and the first boss and the second boss are respectively provided with a first through-hole and a second through-hole penetrating the upper and lower end surfaces; the upper end and both sides of the plastic seat are wrapped with a metal shielding shell, and the first fixed feet and the second fixed feet formed on both sides of the lower end of the metal shielding shell respectively pass through the first through-hole and the second through-hole and extend out of the lower end surface of the plastic seat.

[0017] After adopting the above technical scheme, the utility model has the following beneficial effects compared with the prior art: the utility model firstly injection molds the insulator onto a plurality of terminals as a whole to form a terminal assembly with a stable structure, and can ensure that the gap between the terminal and the insulator is extremely small, and after the terminal assembly is inserted and fixed in the mounting groove of the plastic seat, the assembly of all the terminals can be completed at one time, and the assembly efficiency is extremely high, and the deformation of the terminal can be avoided; and then glue is poured into the step groove at a later stage and solidified to form a sealing colloid, which covers the rear end face of the insulator, and the sealing colloid seals the gap between the insulator and the inner wall of the mounting groove, and the sealing colloid also wraps the front end periphery of the pin part, thereby achieving an excellent sealing assembly effect, which not only achieves an excellent waterproof performance, but also improves the stability and firmness of the assembly structure. Description of the drawings:

[0018] Figure 1 It is a three-dimensional diagram of the first embodiment of the utility model;

[0019] Figure 2 This is a three-dimensional diagram of the unformed sealing colloid in the first embodiment of the present invention;

[0020] Figure 3 It is a three-dimensional exploded view of the first embodiment of the utility model;

[0021] Figure 4 It is a three-dimensional diagram of a plastic seat of the first embodiment of the utility model;

[0022] Figure 5 It is a cross-sectional view of the first embodiment of the utility model;

[0023] Figure 6 This is a three-dimensional diagram of the plastic seat of the first embodiment of the utility model from another perspective;

[0024] Figure 7 It is a three-dimensional diagram of the second embodiment of the utility model;

[0025] Figure 8 It is a cross-sectional view of the second embodiment of the utility model;

[0026] Fig. 9 It is a three-dimensional exploded view of the second embodiment of the utility model; Specific implementation method:

[0027] The utility model is further described below in conjunction with specific embodiments and drawings.

[0028] Embodiment 1:

[0029] See Figure 1-6As shown, an RJ45 waterproof connector includes: a plastic seat 1, a terminal assembly 200 and a sealing colloid 4. The terminal assembly 200 is installed in the plastic seat 1, and the sealing colloid 4 is filled and solidified at the rear end of the plastic seat 1 and the terminal assembly 200 by means of glue injection, so as to achieve sealing of the rear end of the plastic seat 1 and the terminal assembly 200, and ensure the stability of the assembly of the plastic seat 1 and the terminal assembly 200.

[0030] The front end of the plastic seat 1 is provided with a slot 11, and the rear end of the plastic seat 1 is provided with a mounting slot 12 connected to the slot 11. The terminal assembly 200 includes a plurality of terminals 2 and an insulator 3 integrally injection-molded on the terminal 2, the elastic contact portion 21 of the terminal 2 is exposed at the front end of the insulator 3, and the pin portion 22 of the terminal 2 is exposed at the rear end of the insulator 3, the insulator 3 is inserted and fixed in the mounting slot 12, the elastic contact portion 21 is exposed in the slot 11, the pin portion 22 extends out of the rear end face of the plastic seat 1, and a step groove 31 is formed between the rear end face of the insulator 3 and the rear end face of the plastic seat 1; the sealing colloid 4 is filled and solidified in the step groove 31 by means of glue injection, and covers the rear end face of the insulator 3, and the sealing colloid 4 seals the gap between the insulator 3 and the inner wall of the mounting slot 12, and the sealing colloid 4 also wraps the front periphery of the pin portion 22. That is to say, the utility model firstly injection molds the insulator 3 onto a plurality of terminals 2 as a whole to form a terminal assembly 200 with a stable structure, and can ensure that the gap between the terminal 2 and the insulator 3 is extremely small, and after the terminal assembly 200 is inserted and fixed in the mounting groove 12 of the plastic seat 1, the assembly of all the terminals is completed at one time, and the assembly efficiency is extremely high, and the deformation of the terminal 2 is avoided; and then glue is poured into the step groove 31 at a later stage and solidified to form a sealing colloid 4, which covers the rear end face of the insulator 3, and the sealing colloid 4 seals the gap between the insulator 3 and the inner wall of the mounting groove 12, and the sealing colloid 4 also wraps the front end periphery of the pin portion 22, thereby achieving an excellent sealing assembly effect, which not only achieves an excellent waterproof performance, but also improves the stability and firmness of the assembly structure.

[0031] Since there is no assembly gap between the insulator 3, the terminal 2 and the plastic seat 1, it is not only waterproof, but also dustproof. That is, when the crystal plug (i.e., the network cable plug) is not inserted into the slot 11, even if dust enters the slot 11, since there is no assembly gap between the insulator 3, the terminal 2 and the plastic seat 1, it can effectively prevent dust from entering the device through the RJ45 waterproof connector of the utility model, thereby achieving a good dustproof effect.

[0032] In order to improve the waterproof effect of the utility model when it is installed and used, the following designs are also made:

[0033] The plastic seat 1 is formed with a sealing surface 111 on the outer periphery of the notch of the slot 11. When the RJ45 waterproof connector is installed in the slot of the device's housing, the port of the slot 11 is docked with the socket of the housing, and the sealing surface 111 is sealed and assembled with the notch of the housing through waterproof glue, thereby achieving waterproofness with the housing and preventing water from penetrating between the RJ45 waterproof connector and the housing, and the sealing and waterproofing effect is excellent. Of course, in order to further improve the sealing effect, the area of ​​the sealing surface 111 can also be designed to be larger.

[0034] The assembly structure of the terminal assembly 200 and the plastic seat 1 is described in detail below.

[0035] The inner walls on both sides of the installation groove 12 are formed with rail grooves 121, and the two sides of the insulator 3 are formed with convex rails 32 adapted to the rail grooves 121. The convex rails 32 are embedded in the rail grooves 121, so as to achieve upper and lower direction limitation and ensure that the insulator 3 is stably installed in the installation groove 12, while also improving the smoothness of the insulator 3 when being installed into the installation groove 12.

[0036] The upper and lower inner walls of the installation groove 12 are both formed with a retaining groove 122, and the retaining portion 34 at the rear end of the insulator 3 is embedded in the retaining groove 122, which can not only achieve positioning, but also prevent the insulator 3 from being over-inserted into the installation groove 12.

[0037] In addition, in order to prevent the elastic contact portion 21 of the terminal 2 from being offset, the following design is also made: a grid plate 14 is formed at the connection between the rear end of the slot 11 and the mounting slot 12, and a plurality of terminal slots 141 are arranged on the grid plate 14, and the elastic contact portion 21 of the terminal 2 is all inserted into the terminal slot 141, so that the elastic contact portion 21 of the terminal 2 can be effectively prevented from being offset, especially preventing the elastic contact portion 21 of the terminal 2 from being offset in the left and right directions.

[0038] Furthermore, a buckle position 142 is formed at the lower end of the grid plate 14, and an undercut 33 is provided on the insulator 3. The undercut 33 is buckled with the buckle position 142 to form a limit in the insertion direction, which can effectively prevent the insulator 3 from withdrawing from the installation groove 12 and ensure the stability of the assembly structure.

[0039] The lower end of the plastic seat 1 is provided with a plurality of buckle groups 15, and the buckle groups 15 include at least two buckles 151 that are relatively spaced apart. When the utility model is installed on the PCB board, the buckles 151 are inserted into the positioning holes of the PCB board to ensure that the utility model is stably installed on the PCB board.

[0040] The lower end surface of the plastic seat 1 is also provided with a plurality of padding strips 16. When the utility model is installed on the PCB board, the padding strips 16 are in contact with the upper end surface of the PCB board, so that a gap is formed between the lower end surface of the plastic seat 1 and the upper end surface of the PCB board, which facilitates the air connection when the pin portion of the terminal is welded to the PCB board in the later stage, thereby improving the welding quality, and is particularly suitable for reflow soldering.

[0041] The plastic seat 1 is formed with a first convex seat 17 and a second convex seat 18 on both sides, and the first convex seat 17 and the second convex seat 18 are respectively provided with a first through hole 171 and a second through hole 181 penetrating the upper and lower end surfaces; the upper end and both sides of the plastic seat 1 are wrapped with a metal shielding shell 5, and the first fixed legs 51 and the second fixed legs 52 formed on both sides of the lower end of the metal shielding shell 5 respectively pass through the first through hole 171 and the second through hole 181 and extend out of the lower end surface of the plastic seat 1. The metal shielding shell 5 can not only play a shielding function, but also prevent external noise from affecting the signal transmission of the utility model to a certain extent, and the metal shielding shell 5 is inserted and fixed with the PCB board through the first fixed legs 51 and the second fixed legs 52, and when it is connected and fixed, the metal shielding shell 5 realizes a downward holding force on the plastic seat 1, so that the plastic seat 1 is stably installed on the PCB board, and the quality of the assembly of the utility model with the PCB board is guaranteed.

[0042] To sum up, the utility model firstly injection molds the insulator 3 onto a plurality of terminals 2 as a whole to form a terminal assembly 200 with a stable structure, and can ensure that the gap between the terminal 2 and the insulator 3 is extremely small, and after the terminal assembly 200 is inserted and fixed in the mounting groove 12 of the plastic seat 1, the assembly of all the terminals is completed at one time, and the assembly efficiency is extremely high, and the deformation of the terminal 2 is avoided; and then glue is poured into the step groove 31 at a later stage and solidified to form a sealing colloid 4, which covers the rear end face of the insulator 3, and the sealing colloid 4 seals the gap between the insulator 3 and the inner wall of the mounting groove 12, and the sealing colloid 4 also wraps the front end periphery of the pin portion 22, thereby achieving an excellent sealing assembly effect, which not only achieves an excellent waterproof performance, but also improves the stability and firmness of the assembly structure.

[0043] Embodiment 2:

[0044] The difference between the second embodiment and the first embodiment is that: as shown in combination 7-9, the plastic seat 1 is provided with a stepped groove 112 on the periphery of the notch of the slot 11, and the stepped groove 112 is provided with a sealing ring 13 on the outer sleeve. When the front end of the RJ45 waterproof connector is installed in the socket of the casing, and the sealing ring 13 is assembled with the inner wall of the casing, the casing is waterproofed to prevent water from penetrating between the RJ45 waterproof connector and the casing, and the sealing and waterproof effect is excellent.

[0045] A fixing groove 113 is further provided at the bottom of the stepped groove 112 , and the inner side of the sealing ring 13 is embedded in the fixing groove 113 to ensure the stability of the assembly structure.

[0046] Except for the differences described above, other structures of the second embodiment are basically the same as those of the first embodiment, and can achieve the same technical effects.

[0047] Of course, the above description is only a specific embodiment of the present invention and is not intended to limit the scope of implementation of the present invention. Any equivalent changes or modifications made according to the structure, characteristics and principles described in the patent application scope of the present invention should be included in the patent application scope of the present invention.

Claims

1. RJ45 waterproof connector, characterized by: It includes: A plastic seat (1) having a slot (11) disposed at its front end, and a mounting groove (12) communicating with the slot (11) disposed at its rear end; A terminal assembly (200) comprises a plurality of terminals (2) and an insulator (3) integrally injection-molded on the terminal (2), wherein the elastic contact portion (21) of the terminal (2) is exposed at the front end of the insulator (3), and the pin portion (22) of the terminal (2) is exposed at the rear end of the insulator (3), the insulator (3) is inserted and fixed in the mounting groove (12), the elastic contact portion (21) is exposed in the slot (11), the pin portion (22) extends out of the rear end surface of the plastic seat (1), and a step groove (31) is formed between the rear end surface of the insulator (3) and the rear end surface of the plastic seat (1); The sealing colloid (4) is filled and solidified in the step groove (31) by means of glue injection, and covers the rear end surface of the insulator (3). The sealing colloid (4) seals the gap between the insulator (3) and the inner wall of the installation groove (12), and the sealing colloid (4) also wraps the front end periphery of the pin portion (22).

2. The RJ45 waterproof connector according to claim 1, characterized in that: The plastic seat (1) is formed with a sealing surface (111) on the outer periphery of the slot of the slot (11); when the RJ45 waterproof connector is installed in the slot of the housing, the port of the slot (11) is butted against the socket of the housing, and the sealing surface (111) is sealed and assembled with the slot of the housing through waterproof glue.

3. The RJ45 waterproof connector according to claim 1, characterized in that: The plastic seat (1) is provided with a stepped groove (112) on the periphery of the notch of the slot (11), and a sealing ring (13) is provided on the outer cover of the stepped groove (112). When the front end of the RJ45 waterproof connector is installed in the socket of the casing, the sealing ring (13) is assembled with the inner wall of the casing.

4. The RJ45 waterproof connector according to claim 3, characterized in that: A fixing groove (113) is also provided at the bottom of the stepped groove (112), and the inner side of the sealing ring (13) is embedded in the fixing groove (113).

5. The RJ45 waterproof connector according to any one of claims 1 to 4, characterized in that: Rail grooves (121) are formed on the inner walls of both sides of the installation groove (12), and convex rails (32) adapted to the rail grooves (121) are formed on both sides of the insulator (3), and the convex rails (32) are embedded in the rail grooves (121).

6. The RJ45 waterproof connector according to any one of claims 1 to 4, characterized in that: A grid plate (14) is formed at the connection point between the rear end of the pair of slots (11) and the mounting slot (12), and a plurality of terminal slots (141) are provided on the grid plate (14), and the elastic contact portions (21) of the terminals (2) are all inserted into the terminal slots (141).

7. The RJ45 waterproof connector according to claim 6, characterized in that: A buckle position (142) is formed at the lower end of the grid plate (14), and an undercut (33) is provided on the insulator (3). The undercut (33) is buckled and positioned with the buckle position (142) to form a limit in the insertion direction.

8. The RJ45 waterproof connector according to claim 5, characterized in that: The upper and lower inner walls of the installation groove (12) are both formed with retaining grooves (122), and the retaining portion (34) at the rear end of the insulator (3) is embedded in the retaining groove (122).

9. The RJ45 waterproof connector according to any one of claims 1 to 4, characterized in that: The lower end of the plastic seat (1) is provided with a plurality of buckle groups (15), wherein the buckle groups (15) include at least two buckles (151) that are relatively spaced apart. The lower end surface of the plastic seat (1) is also provided with a plurality of heightening strips (16).

10. The RJ45 waterproof connector according to any one of claims 1 to 4, characterized in that: A first convex seat (17) and a second convex seat (18) are respectively formed on both sides of the plastic seat (1), and the first convex seat (17) and the second convex seat (18) are respectively provided with a first through hole (171) and a second through hole (181) penetrating the upper and lower end surfaces; the upper end and both sides of the plastic seat (1) are wrapped with a metal shielding shell (5), and a first fixed foot (51) and a second fixed foot (52) formed on both sides of the lower end of the metal shielding shell (5) respectively pass through the first through hole (171) and the second through hole (181) and protrude outside the lower end surface of the plastic seat (1).

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