Direct insertion type RJ connector

Abstract

The utility model relates to the technical field of connectors, in particular to a direct insertion type RJ connector which comprises a plug and a socket, an electric connection structure inside the plug is arranged to be crystal, a button portion is arranged on the side wall of a plug plastic shell of the plug, and a supporting portion and a PCB are arranged in a sleeve of the socket. During plug-in, the crystal head is electrically connected with the inclined elastic arm of the RJ terminal, the RJ terminal is assembled on the PCB, and the supporting part provides support for the RJ terminal; the key part is matched with the lock catch part on the side wall of the sleeve so as to lock the matching state of the plug and the socket and prevent retreating, and the key part is used for unlocking the inserting state. According to the utility model, the key part, the lock catch part, the supporting part and the shifting elastic sheet on the crystal head are arranged, so that the crystal head is locked and limited in multiple degrees of freedom, the connection is kept stable, the key part can be unlocked in a one-key manner, the plug-and-play connection can be realized, the key can be disassembled immediately, the installation is more convenient and faster, and the working hours are saved. The connector is small in overall structural size, light in weight and suitable for signal transmission of a power supply and a box body in a small space.

Description

Technical Field

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

[0002] ‌RJ Jack connector is a widely used electrical connector. Its full name is “Registered Jack”, which means “registered jack”.

[0003] RJ Jack connectors usually have a modular design and are easy to install and replace. Its structure includes a shell and an internal contact array, and the transmission of electrical signals is achieved through the cooperation of pins and sockets. It has high reliability, good electrical performance and wide compatibility, and is suitable for connection between various electronic devices. The transmission of electrical signals through RJ connectors in automotive power supplies and boxes requires high connection stability and good sealing effects.

[0004] For example, the utility model patent with announcement number CN221530415U discloses an RJ45 waterproof connector, including a plug assembly and a socket assembly. The plug assembly includes a plug shell, a middle tube sleeve, a connector core, a crystal head, a wire clamp sleeve and a tail sleeve; the connector core has a slot for the crystal head to be inserted, and the inner wall at the front side of the slot is respectively provided with a stop block and a convex part, combined with two elastic buckles symmetrically arranged on the inner wall at the rear side of the slot, which are used for the assembly of the crystal head and the connector core. When removing the crystal head, the elastic buckle is pressed to release the restriction of the elastic buckle on the rear end of the crystal head, and then the elastic tongue is pressed to separate it from the convex part, so that the user can take the crystal head out of the slot.

[0005] When the existing connector is in use, the installation space of the RJ connector is limited, and multiple points of engagement are usually set, which makes the installation complicated. Moreover, after engagement, due to the tolerance problem of connector manufacturing, there is a gap between the structures, which affects the connection stability and sealing effect.

[0006] Based on the problems in the prior art, the utility model provides a straight-plug RJ connector. Utility Model Content

[0007] The utility model aims to provide a straight-plug RJ connector to solve the technical problems of low connection stability and poor sealing of the RJ connector in the prior art.

[0008] The technical solution of the utility model is: a straight-plug RJ connector, comprising:

[0009] It comprises a plug and a socket, wherein the internal electrical connection structure of the plug is a crystal plug, a button portion is arranged on the side wall of the plug plastic shell of the plug, and a support portion and a PCB board are arranged in the sleeve of the socket;

[0010] When the plug and the socket are plugged in, the oblique elastic arm of the crystal head is electrically connected to the RJ terminal, the RJ terminal is mounted on the PCB board, and the support part provides support for the RJ terminal; the button part cooperates with the locking part on the side wall of the sleeve to lock the mating state of the plug and the socket and prevent retreat, and the button part is used to unlock the mating state.

[0011] Preferably, the support portion comprises a baffle and a clamping frame vertically mounted on the PCB board, and a stop block is provided on the side wall of the baffle to stop the crystal plug and prevent the plug from moving forward;

[0012] The clamping frame is U-shaped and is mounted on the baffle through a contoured U-shaped assembly groove. The two arms of the clamping frame extend toward one side of the plug and clamp on both sides of the crystal head to limit the left and right positions of the crystal head.

[0013] Preferably, the spring on the outer side wall of the crystal plug is placed in the plug plastic shell and locked in position;

[0014] The projection length of the toggle spring along the plug assembly direction is not less than the assembly length of the plug and the socket when they are matched and overlapped. A strip-shaped through groove for mounting and accommodating the toggle spring is provided on the inner wall of the sleeve end.

[0015] Preferably, the button portion includes a protective cover, an operating button and a spring connected to the end of the operating button, a part of the operating button and the spring are coaxially arranged in the protective cover, the protective cover is fitted on the side wall of the plug plastic shell, a locking block is arranged at the bottom of the operating button, and the locking block penetrates the side wall of the plug plastic shell and extends inward;

[0016] Preferably, a rubber ring is provided on the outer wall of the threaded section of the sleeve for sealing when the plug and the socket are connected, and the length of the threaded section is not less than the assembly length of the plug and the socket for overlapping;

[0017] Preferably, a cutting edge for foolproofing is provided on one side of the threaded section, and the locking portion comprises a locking groove and a stop block provided on the cutting edge, and an avoidance notch is provided on one side of the stop block;

[0018] The operating button is pressed to compress the spring, driving the locking block to move until it is flush with the avoidance notch to avoid the stop block and unlock the device. The locking block extends inwardly through the side wall of the plug plastic shell.

[0019] Preferably, the RJ terminal is mounted on the PCB board by supporting blocks, and the fence arranged in the sleeve is used to support the RJ terminal in a contoured manner;

[0020] The fence separates the internal space of the sleeve into a first chamber and a second chamber; a group of strip grooves are symmetrically arranged along the busbar on the inner wall of the sleeve segment located in the second chamber for assembling the PCB board, the support part is assembled in the second chamber, and the plug is inserted into and locked in the first chamber.

[0021] Preferably, the sleeve cooperates with the nut through the threaded section to be fixedly mounted on the assembly plate surface, and a waterproof O-ring is provided on the mounting side of the nut.

[0022] Compared with the prior art, the advantages of the utility model are:

[0023] The utility model includes two parts, a plug and a socket. A button part is arranged on the plastic shell of the plug. The crystal head and the plastic shell of the plug can be detachably installed. A locking part is arranged on the sleeve of the socket, and a supporting part is arranged inside the sleeve. When mating, the supporting part provides a semi-enclosed structure support for the plug and clamps and limits the position. When the supporting part and the button part work, the plug is limited in the front and back directions. The toggle spring on the crystal head limits the plug in the up and down directions. The clamping frame of the supporting part limits the plug in the left and right directions. The six degrees of freedom are locked and limited in all directions to keep the connection stable. The button part is unlocked by one button in the form of a button switch. The plug is connected and the button is removed. The installation is more convenient and quick, saving work time. The overall structure of the connector is small and lightweight, suitable for power supply and box signal transmission in a small space. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0025] Figure 1 This is a schematic diagram of the overall assembly of the straight-plug RJ connector of the utility model;

[0026] Figure 2 This is a schematic cross-sectional diagram of the overall assembly of the straight-plug RJ connector of the utility model;

[0027] Figure 3 This is a schematic diagram of the electrical connection between the crystal plug and the PCB board of the utility model;

[0028] Figure 4 It is a side schematic diagram of the clamping frame of the utility model clamping the limited crystal head;

[0029] Figure 5 It is a schematic diagram of the three-dimensional structure of the button part of the utility model;

[0030] Figure 6 It is a cross-sectional schematic diagram of the button portion of the utility model;

[0031] Figure 7 This is a schematic diagram of the structure of the second chamber of the sleeve of the utility model;

[0032] Figure 8 This is a schematic diagram of the first chamber structure of the sleeve of the utility model;

[0033] Fig. 9 This is a schematic diagram of the support part of the utility model being assembled on a PCB board to support an RJ terminal;

[0034] Fig.10 It is a schematic diagram of the three-dimensional structure of the support part of the utility model;

[0035] Among them: 1. Plug; 2. Socket; 3. Rubber ring; 4. Waterproof O-ring;

[0036] 11. Crystal plug; 12. Plug plastic shell; 13. Button part; 14. Toggle spring;

[0037] 131. Protective cover; 132. Operating button; 133. Spring; 134. Locking block;

[0038] 21. Sleeve; 22. Support part; 23. Locking part; 24. PCB board; 25. RJ terminal; 26. Support block; 27. Fence; 28. Nut; 29. ​​Cover;

[0039] 201, first chamber; 202, second chamber; 203, strip groove;

[0040] 211, strip-shaped through groove; 212, threaded section; 213, trimming;

[0041] 221, baffle; 222, U-shaped assembly groove; 223, clamping frame; 224, stop block;

[0042] 231. Locking groove; 232. Stop block; 233. Avoidance gap. DETAILED DESCRIPTION

[0043] The following is a further detailed description of the present invention in conjunction with specific embodiments:

[0044] like Figure 1 As shown, a straight-in RJ connector includes a matching plug 1 and a socket 2, and an attached Figure 2 As shown, the internal electrical connection structure of the plug 1 is configured as a crystal plug 11. When the plug 1 and the socket 2 are plugged together, the crystal plug 11 is electrically connected to the oblique elastic arm of the RJ terminal 25, and the RJ terminal 25 is assembled on the PCB board 24.

[0045] Usually, the plug and socket are screwed together or snapped together at multiple points to avoid shaking and solve the problem of mating stability. The sealing ring is placed on the outside to seal the mating end faces for waterproof protection. Although the connected connector can be restricted up, down, left and right to reduce shaking and achieve sealing, there are tolerance problems after the connector is produced, processed and molded, and the sealing effect is insufficient and the target requirements cannot be met.

[0046] In this embodiment, a button portion 13 is provided on the side wall of the plug shell 12 of the plug 1, a support portion 22 and a PCB board 24 are provided in the sleeve 21, and the RJ terminal 25 is supported and assembled on the PCB board 24 by a support block 26. Figure 4 As shown, the RJ terminal 25 is a metal spring sheet, which is bent into a Z shape as a whole and fixed on the PCB board by welding process. If it is not fixed and supported, it is easy to tilt or shake.

[0047] The support block 26 is made of hard plastic, and can directly fix one end of the RJ terminal 25 on the PCB board 24 to prevent it from shaking and falling.

[0048] The fence 27 disposed in the sleeve 21 is used to support the RJ terminal 25 in a contoured manner. The support portion 22 is at the front end in the assembly direction to provide support for the RJ terminal to maintain the terminal stable and prevent shaking.

[0049] The fence 27 separates the inner space of the sleeve 21 into a first chamber 201 and a second chamber 202. Figure 7 As shown, a group of strip grooves 203 are symmetrically arranged along the busbar on the inner wall of the sleeve 21 segment in the second chamber 202 for assembling the PCB board 24. The support portion 22 is assembled in the second chamber 202. The plug 1 is inserted into and locked in the first chamber 201. The structural diagram in the first chamber 201 is shown in the attached figure. Figure 8 shown.

[0050] Specifically, the support portion 22 includes a baffle 221 and a clamping frame 223 vertically mounted on the PCB board 24 , and a stop block 224 is provided on the side wall of the baffle 221 for stopping the plug 1 to prevent the plug 1 from moving forward.

[0051] For details, refer to the attached Figure 4 The bottom of the baffle 221 is vertically mounted on the PCB board 24, and the peripheral side of the baffle 221 is snap-fitted with the inner wall of the sleeve 21, as shown in FIG. Fig. 9 As shown, combined with the attached Fig.10 The baffle 221 is in the shape of an arched door, and is provided with a double-layer plate, and a contoured U-shaped assembly groove 222 is provided between the two layers of plates.

[0052] The baffle 221 is designed with a film and has a certain elasticity, and can buffer and block the plug assembly without damaging the plug 1.

[0053] Refer to the attached Figure 3 As shown, the clamping frame 223 is U-shaped and is mounted on the baffle 221 through the contoured U-shaped assembly groove 222. The two arms of the clamping frame 223 extend toward one side of the plug 1 and clamp on both sides of the crystal head 11 to limit the left and right positions of the crystal head 11.

[0054] The clamping frame 223 may be a solid side plate, or may be a hollowed-out design with warped springs. Figure 4 , the warped spring piece is recessed inward, making the clamping more secure.

[0055] The fence 27 is assembled with terminals, and a support portion 22 is provided at the front end of the fence 27 to prevent the plug 1 from moving forward. The button portion 13 cooperates with the locking portion 23 on the side wall of the sleeve 21 to lock the mating state of the plug 1 and the socket 2 and prevent the plug 1 from retreating and falling out, thereby realizing the front and rear limit fixation of the plug 1.

[0056] As attached Figure 6 As shown, the button portion 13 includes a protective cover 131, an operating button 132 and a spring 133 connected to the end of the operating button 132. A part of the operating button 132 and the spring 133 are coaxially arranged in the protective cover 131. The protective cover 131 is assembled on the side wall of the plug plastic shell 12. A locking block 134 is arranged at the bottom of the operating button 132. The locking block 134 passes through the side wall of the plug plastic shell 12 and extends inward.

[0057] The operating button 132 is configured as a cylindrical plastic core injection molded part, and a hook is disposed on the side wall to cooperate with the hanging groove on the surface of the protective cover 131, and is pushed into place when it touches the wall.

[0058] Combined with Figure 5 As shown, a cutting edge 213 for foolproofing is provided on one side of the threaded section 212 , and the locking portion 23 includes a locking groove 231 and a stop block 232 opened on the cutting edge 213 , and an avoidance notch 233 is provided on one side of the stop block 232 .

[0059] The plug 1 and the socket 2 are matched to complete the upper and lower, left and right, front and back limit assembly. When unlocking and disassembling are required, the operating button 132 is pressed to compress the spring 133, driving the locking block 134 to move until it is flush with the avoidance gap 233 to avoid the stop block 232, unlocking, and removing the plug 1.

[0060] The spring 14 on the outer wall of the plug 11 is placed in the plug plastic shell 12 and locked in position; different from the conventional assembly method of the plug 11, in this embodiment, the projection length of the spring 14 along the assembly direction of the plug 1 is not less than the assembly length of the plug 1 and the socket 2, and a strip-shaped through groove 211 for mounting and accommodating the spring 14 is provided on the inner wall of the end of the sleeve 21. Figure 2As shown, the toggle spring 14 has been pressed and fixed in the plug shell 12, and when assembled with the sleeve 21 of the socket 2, the plug shell 12 will be further pressed and assembled in the strip-shaped through groove 211, rebounding to prevent the plug 1 from shaking up and down. Since the tail end of the toggle spring 14 is not limited and buckled in the sleeve 21, but remains fixed in the plug shell 12, it is easy to disassemble.

[0061] A rubber ring 3 is provided on the outer wall of the threaded section 212 of the sleeve 21. When the plug 1 and the socket 2 are connected, the surrounding gap between the sleeve 21 and the plug plastic shell 12 is more tightly engaged to play a sealing role. In addition, the length of the threaded section 212 can be selected to be longer, which is convenient for adding a waterproof cap to the later product to further provide waterproof sealing protection. A plug cover 29 is provided at the open end of the second chamber 202 of the socket 2 for sealing.

[0062] The sleeve 21 cooperates with the nut 28 through the threaded section 212 to be fixedly mounted on the assembly board surface, and a waterproof O-ring 4 is arranged on the nut installation side. In addition, a silicone waterproof layer (pad) is arranged on the PCB board 24 for waterproof protection.

[0063] During the specific assembly, the socket 2 is installed from the inside of the box, a waterproof pad is installed on the outside of the box, the nut 28 is tightened, and then the waterproof O-ring 4 is installed. The cable is crimped to the crystal head 11 as needed, and the crimped crystal head 11 is installed into the rubber core according to the product limit direction. The wire grip, waterproof ring and nut are installed in sequence from the other end of the crystal head 11, and the nut is tightened to complete the terminal assembly of the plug.

[0064] The plug 1 is matched and inserted into the socket 2 to achieve electrical connection. To unlock, the operating button 132 is pressed to make the locking block 134 flush with the avoidance notch 233, and the plug 1 is pinched and pulled out.

[0065] The crystal plug 11 and the plug shell 12 are split and detachable. The tail of the cable is fixed by a wire grip and a nut. The plug shell 12 is mounted on the outside of the socket 2. The size of the plug shell 12 is no more than 25 mm, making the overall size of the RJ connector small, more miniaturized and lightweight. As a modular RJ connector, it can be quickly disassembled, repaired and replaced with accessories when a fault occurs, without the need to replace the entire component, which improves maintenance efficiency and saves costs.

[0066] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with this technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, so it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model.

Claims

1. A plug-in RJ connector, comprising a plug and a socket, wherein the internal electrical connection structure of the plug is a crystal plug, and a PCB board is arranged in the sleeve of the socket; when the plug and the socket are plugged into each other, the crystal plug is electrically connected to the oblique elastic arm of the RJ terminal, and the RJ terminal is mounted on the PCB board, characterized in that: A button portion is provided on the side wall of the plug plastic shell of the plug, and a support portion for supporting the RJ terminal is provided in the sleeve of the socket; the button portion cooperates with the locking portion on the side wall of the sleeve to lock the mating state of the plug and the socket and prevent retreat, and the button portion is used to unlock the mating state; The support part includes a baffle and a clamping frame vertically mounted on the PCB board, and a stop block is arranged on the side wall of the baffle to stop the crystal plug and prevent the plug from moving forward; The button part includes a protective cover, an operating button and a spring connected to the end of the operating button. A part of the operating button and the spring are coaxially arranged in the protective cover. The protective cover is mounted on the side wall of the plug plastic shell. A locking block is arranged at the bottom of the operating button. The locking block passes through the side wall of the plug plastic shell and extends inward.

2. The straight-in RJ connector according to claim 1, characterized in that: The clamping frame is U-shaped and is mounted on the baffle through a contoured U-shaped assembly groove. The two arms of the clamping frame extend toward one side of the plug and clamp on both sides of the crystal head to limit the left and right positions of the crystal head.

3. The straight-in RJ connector according to claim 2, characterized in that: The spring sheet on the outer side wall of the crystal plug is placed in the plug plastic shell and locked in position; The projection length of the toggle spring along the plug assembly direction is not less than the assembly length of the plug and the socket when they are matched and overlapped. A strip-shaped through groove for mounting and accommodating the toggle spring is provided on the inner wall of the sleeve end.

4. The straight-in RJ connector according to claim 1, characterized in that: A rubber ring is arranged on the outer wall of the threaded section of the sleeve for sealing when the plug and the socket are connected. The length of the threaded section is not less than the assembly length of the plug and the socket for matching and overlapping.

5. The straight-in RJ connector according to claim 4, characterized in that: A cutting edge for preventing fooling is arranged on one side of the threaded section, and the locking portion comprises a locking groove and a stop block provided on the cutting edge, and an avoidance notch is arranged on one side of the stop block; The operating button is pressed to compress the spring, driving the locking block to move until it is flush with the avoidance notch to avoid the stop block and unlock the device. The locking block extends inwardly through the side wall of the plug plastic shell.

6. The straight-in RJ connector according to claim 1, characterized in that: The RJ terminal is mounted on the PCB board through a support block, and the fence arranged in the sleeve is used to support the RJ terminal in a contoured manner; The fence separates the internal space of the sleeve into a first chamber and a second chamber; a group of strip grooves are symmetrically arranged along the busbar on the inner wall of the sleeve segment located in the second chamber for assembling the PCB board, the support part is assembled in the second chamber, and the plug is inserted into and locked in the first chamber.

7. The straight-in RJ connector according to claim 4, characterized in that: The sleeve cooperates with the nut through the threaded section to be fixedly installed on the assembly plate surface, and a waterproof O-ring is arranged on the installation side of the nut.

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