A waterproof connector

By designing the injection-molded body and housing of the crystal head, as well as the rotating locking buckle, the problem of insufficient waterproofing of the crystal head in harsh environments has been solved, achieving better waterproofing, and improving stability and service life.

CN224384637UActive Publication Date: 2026-06-19SHENZHEN CONNECTION ELECTRONIC CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN CONNECTION ELECTRONIC CO LTD
Filing Date
2025-06-20
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

The existing connection points between the RJ45 connector and the wire lack waterproofing, making them prone to damage and signal transmission failure in harsh environments, thus affecting stability and lifespan.

Method used

A waterproof connector is designed by sealing the socket by injection molding a first injection-molded body at the right end of the crystal head body and injection molding a second injection-molded body inside the shell. Combined with a rotating locking buckle and a waterproof gasket, a double seal is achieved, thereby improving waterproof performance.

Benefits of technology

It effectively prevents water and moisture from entering the RJ45 connector, thus improving the stability and lifespan of the connector.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a waterproof connector, include: crystal head body, wire, shell and rotating locking buckle, the end of wire is by the jack of crystal head body right -hand member inserts inside and is connected with it, and the first injection molding of the jack plugging and sealing wrapping wire has been injection molded to the right end of crystal head body, the right end of crystal head body is placed in the mounting hole of shell left -hand member, rotating locking buckle with shell rotation cooperation, and the inner side wall of rotating locking buckle is provided with rotating locking block. Adopt above -mentioned technical scheme, through the first injection molding of the jack plugging and sealing wrapping wire has been injection molded to the right end of crystal head body, can prevent water and water vapor from the connecting position of wire and crystal head to enter the inside of crystal head, realizes waterproof effect to improve the stability and service life of crystal head.
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Description

Technical Field

[0001] This utility model relates to the technical field of connectors, and in particular to a waterproof connector. Background Technology

[0002] A crystal head is a plastic connector that can be inserted in a fixed direction and automatically prevents it from falling out. It is commonly known as a "crystal head" and its professional term is RJ-45 connector.

[0003] The existing connection points between the RJ45 connector and the wires do not have a waterproof structure. In harsh environments, the poor waterproofing can easily lead to damage to the internal components of the RJ45 connector and signal transmission failure, thus affecting its stability and service life. Utility Model Content

[0004] In order to overcome the existing technical defects, the purpose of this utility model is to provide a waterproof connector to solve the above-mentioned technical problems.

[0005] The technical solution adopted by this utility model to solve the technical problem is as follows:

[0006] According to one aspect of this utility model, a waterproof connector is designed, comprising: a crystal head body, a wire, a housing, and a rotary locking buckle. The end of the wire is inserted into and connected to the crystal head body through a socket on the right end. The right end of the crystal head body is injection molded with a first injection molded body that seals and encapsulates the wire by blocking the socket. The right end of the crystal head body is placed in a mounting hole on the left end of the housing. The rotary locking buckle is rotatably engaged with the housing. A rotary locking block is provided on the inner sidewall of the rotary locking buckle.

[0007] By employing the above technical solution, a first injection-molded body is injected into the right end of the RJ45 connector body to seal the socket and encapsulate the wire. This prevents water and moisture from entering the RJ45 connector from the connection point between the wire and the connector, achieving a waterproof effect and thus improving the stability and service life of the RJ45 connector.

[0008] To better address the aforementioned technical deficiencies, this utility model also offers a superior technical solution:

[0009] In some embodiments, a second injection-molded body is injection-molded inside the right end of the housing to seal the right end, and a waterproof gasket is provided at the left end of the housing. Thus, a double seal can be achieved through the second injection-molded body, resulting in better waterproofing.

[0010] In some embodiments, a first protrusion and a second protrusion are circumferentially provided on the left end of the outer casing, and a rotating groove is formed between the first protrusion and the second protrusion. A rotating slider is circumferentially provided on the inner sidewall of the rotating locking buckle, and the rotating slider slides circumferentially in cooperation with the rotating groove.

[0011] In some embodiments, two second protrusions are circumferentially spaced apart, and the inner wall of the rotary locking buckle is provided with a limiting member located on the right side of the rotary slider. When the rotary locking buckle is rotated to move the limiting block from a state of contact with one of the second protrusions to a state of contact with the other second protrusion, the rotary locking buckle switches between a locked state and an unlocked state.

[0012] In some embodiments, the right end of the second protrusion is provided with a first inclined surface, and the left end of the rotating slider is provided with a second inclined surface.

[0013] In some embodiments, the inner sidewall of the rotary locking buckle is circumferentially provided with a stop block located to the right of the second protrusion.

[0014] In some embodiments, the system also includes a crystal head socket with a slot and a rotating connection groove communicating with the slot. When the crystal head body is inserted into the socket, and the rotating locking block passes through the slot into the rotating connection groove, the rotating locking buckle is rotated. When the limiting block moves from a state of contact with one of its second protrusions to a state of contact with another second protrusion, the connection between the crystal head socket and the housing is locked. At this time, both the crystal head body and the crystal head socket are in contact with the waterproof gasket. Thus, the waterproof gasket can achieve waterproofing at the connection point between the crystal head body and the crystal head socket, improving waterproof performance. Attached Figure Description

[0015] Figure 1 A schematic diagram of the structure of a waterproof connector according to one embodiment of the present invention;

[0016] Figure 2 for Figure 1 A structural diagram from another perspective;

[0017] Figure 3 This is a structural schematic diagram of the waterproof connector from another perspective, in which the rotary locking buckle has been rotated 90°.

[0018] Figure 4 This is a schematic diagram of the exploded structure of a waterproof connector;

[0019] Figure 5 This is a schematic diagram of the rotating locking buckle.

[0020] Figure 6 This is a structural diagram of the outer shell, the limiting block, the rotary locking block, and the stop block;

[0021] Figure 7 for Figure 6 Another schematic diagram of the structure shows that the rotary locking buckle has rotated 90°;

[0022] Figure 8This is a schematic diagram of the structure of a crystal head socket;

[0023] Figure label:

[0024] 1. Crystal head body; 2. Wire; 3. Housing; 31. First protrusion; 32. Second protrusion; 33. Rotary slide; 4. Rotary locking buckle; 41. Rotary slider; 42. Limit block; 43. Rotary locking block; 44. Stop block; 5. First injection molded body; 6. Second injection molded body; 7. Waterproof gasket; 8. Crystal head socket; 81. Slot; 82. Rotary connection groove. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0026] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] In the description of this utility model, unless otherwise explicitly defined, terms such as setting, installing, connecting, and fixing should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0028] Example 1

[0029] refer to Figures 1 to 7 As shown, the present invention provides a waterproof connector, comprising: a crystal head body 1, a wire 2, a housing 3, and a rotating locking buckle 4.

[0030] The end of the wire 2 is inserted into and connected to the socket on the right side of the crystal head body 1. The wire 2 is a short wire, and there may be one or more wires, depending on the needs. In this embodiment, it is preferred that there are two wires. One end of one wire 2 is connected to pin 7 inside the crystal head body 1, and the other end is connected to pin 8 inside the crystal head body 1. One end of the other wire is connected to pin 4 inside the crystal head, and the other end is connected to pin 5 inside the crystal head body 1. A resistor (120±5Ω) is connected in series with the wire. The right side of the crystal head body 1 is injection molded with a first injection molded body 5, which seals and encapsulates the socket on the wire 2. The left end of the first injection molded body 5 is located inside the socket, and the right end is located on the right side of the crystal head body 1. The first injection molded body 5 is formed by injection molding of molten PS, PE, PP, ABS, PET, PC, PMMA, etc. In this embodiment, it is preferred that the first injection molded body 5 is formed by injection molding of molten PE.

[0031] The right end of the crystal head body 1 is placed inside the mounting hole on the left end of the outer shell 3. A second injection-molded body 6, sealing the right end of the outer shell 3, is injection-molded inside the right end of the outer shell 3. The left end of the second injection-molded body 6 wraps around the right end of the first injection-molded body 5. The second injection-molded body 6 is formed by injection molding molten PS, PE, PP, PVC, ABS, PET, PC, or PMMA, etc. In this embodiment, the second injection-molded body 6 is preferably formed by injection molding molten PVC. A waterproof gasket 7 is provided on the left end of the outer shell 3.

[0032] The rotating locking buckle 4 rotates and engages with the outer casing 3. Specifically, the left end of the outer casing 3 is circumferentially provided with a first protrusion 31 and a second protrusion 32. The first protrusion 31 is a ring-shaped protrusion or is composed of multiple circumferentially distributed protrusions. In this embodiment, the first protrusion 31 is preferably composed of two circumferentially distributed protrusions. The second protrusion 32 is a ring-shaped protrusion or is composed of multiple circumferentially distributed protrusions. In this embodiment, the second protrusion 32 is preferably composed of two circumferentially distributed protrusions. A gap is maintained between the first protrusion 31 and the second protrusion 32, forming a rotating groove 33. The inner wall of the locking buckle 4 is provided with a rotating slider 41. The rotating slider 41 is a ring-shaped protrusion or is composed of multiple circumferentially distributed protrusions. The rotating slider 41 is located in the rotating groove 33 and slides in circumferentially with the rotating groove 33. The inner wall of the rotating locking buckle 4 is provided with a limiting block 42. The limiting block 42 is located to the right of the rotating slider 41. When the rotating locking buckle 4 is rotated to move the limiting block 42 from the state of contact with one of its second protrusions 32 to the state of contact with another second protrusion 32, the rotating locking buckle 4 switches between the locked state and the unlocked state.

[0033] The inner wall of the rotary locking buckle 4 is provided with one, two or three rotary locking blocks 43. In this embodiment, it is preferred that the inner wall of the rotary locking buckle 4 is provided with two rotary locking blocks 43.

[0034] The second protrusion 32 has a first inclined surface on its right end, and the rotating slider 41 has a second inclined surface on its left end. The inner wall of the rotating locking buckle 4 is circumferentially provided with a stop block 44 located to the right of the second protrusion 32, and multiple stop blocks 44 are distributed circumferentially.

[0035] The left end of the limiting block 42 is connected to a rotating slider 41, and the right end is connected to a stop block 44.

[0036] This technical solution, when the RJ45 connector body is connected to the RJ45 connector socket, constitutes a testing RJ45 connector for performing the most basic continuity or conduction tests. It can quickly verify the physical continuity of the wires in network cables (or other cables using RJ45 connectors, such as telephone lines) and whether there is a short circuit.

[0037] Example 2

[0038] refer to Figures 1 to 8 As shown, another waterproof connector provided by this utility model differs from embodiment one in that it also includes a crystal head socket 8. The crystal head socket 8 is provided with a slot 81 and a rotating connecting groove 82 communicating with the slot 81. There are two slots 81. The rotating connecting groove 82 is an annular groove or a two-section arc groove. When the rotating connecting groove 82 is a two-section arc groove, each slot 81 is connected to one end of a rotating connecting groove 82. When the crystal head body 1 is inserted into the socket on the crystal head socket 8, and the two rotating locking blocks 43 pass through the two slots 81 and enter the rotating connecting groove 82, the rotating locking buckle 4 is rotated. When the limiting block 42 on the rotating locking buckle 4 is in contact with one of its second protrusions 32 (e.g., ... Figure 6 (As shown) Move to a state of contact with another second protrusion 32 (as shown) Figure 7 When the connection between the crystal head socket 8 and the housing 3 is locked (as shown), both the crystal head body 1 and the crystal head socket 8 are in contact with the waterproof gasket 7. When the locking buckle 4 is rotated in the opposite direction, the rotating locking block 43 moves to correspond with the slot 81, and the crystal head socket 8 and the housing 3 are in the unlocked state, so that the crystal head socket 8 and the crystal head body 1 can be separated.

[0039] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A waterproof connector, characterized in that, include: The device comprises a crystal head body, a wire, a housing, and a rotary locking buckle. The end of the wire is inserted into and connected to the crystal head body through a socket on the right end. The right end of the crystal head body is injection molded with a first injection molded body that seals and encloses the wire in the socket. The right end of the crystal head body is placed in the mounting hole on the left end of the housing. The rotary locking buckle rotates and engages with the housing. A rotary locking block is provided on the inner wall of the rotary locking buckle.

2. A waterproof connector according to claim 1, wherein The right end of the outer casing has a second injection-molded body that seals the right end, and the left end of the outer casing is provided with a waterproof gasket.

3. A waterproof connector according to claim 1, wherein The outer casing has a first protrusion and a second protrusion circumferentially arranged on its left end, and a rotating groove is formed between the first protrusion and the second protrusion. The rotating locking buckle has a rotating slider circumferentially arranged on its inner sidewall, and the rotating slider slides in circumferential engagement with the rotating groove.

4. A waterproof connector according to claim 3, wherein The second protrusion is provided in two circumferentially spaced positions. The inner side wall of the rotary locking buckle is provided with a limiting block located on the right side of the rotary slider. When the rotary locking buckle is rotated so that the limiting block moves from a state of contact with one of the second protrusions to a state of contact with the other second protrusion, the rotary locking buckle switches between a locked state and an unlocked state.

5. A waterproof connector according to claim 3 or 4, wherein The second protrusion has a first inclined surface on its right end, and the rotating slider has a second inclined surface on its left end.

6. A waterproof connector according to claim 4, wherein The inner side wall of the rotary locking buckle is provided with a stop block located to the right of the second protrusion.

7. A waterproof connector according to claim 1, wherein It also includes a crystal head socket, which has a slot and a rotating connection groove communicating with the slot. When the crystal head body is inserted into the socket on the crystal head socket, the rotating locking block passes through the slot and enters the rotating connection groove. When the rotating locking buckle is rotated, the limiting block moves from a state of contact with one of its second protrusions to a state of contact with another second protrusion, locking the connection between the crystal head socket and the housing. At this time, both the crystal head body and the crystal head socket are in contact with the waterproof gasket.