A new waterproof RJ45 connector
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHUODA ELECTRONIC TECHNOLOGY (KUNSHAN) CO LTD
- Filing Date
- 2025-07-05
- Publication Date
- 2026-08-07
AI Technical Summary
[0004]本实用新型的目的是针对上述RJ45连接器的现有技术中,存在端子的连接不够稳固,影响电性连接良率,后端焊接处密封不严密,容易进水的缺陷,提供了一种新型防水RJ45连接器,可以达到端子的连接稳固,不影响电性连接良率,前后端焊接处密封严密,不会进水的目的
Smart Images

Figure CN224610147U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an RJ45 connector, and more particularly to a novel waterproof RJ45 connector, belonging to the technical field of RJ45 connectors. Background Technology
[0002] The RJ45 connector is a standardized network interface widely used in Ethernet communication. It adopts an 8P8C structure, contains 8 terminals, and is mainly used for twisted-pair cable connections to ensure standardized and stable communication between network devices.
[0003] The terminals of existing RJ45 connectors are not securely connected, and the elastic contacts do not make tight contact with the corresponding plugs, affecting the electrical connection yield and signal transmission stability. The rear solder joints are not properly sealed, allowing water to enter and causing leakage in the internal components of the plastic housing. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing RJ45 connectors, such as unstable terminal connections affecting electrical connection yield and inadequate sealing at the rear solder joint, which makes them prone to water ingress. This invention provides a new type of waterproof RJ45 connector that achieves stable terminal connections without affecting electrical connection yield, and ensures a tight seal at the front and rear solder joints to prevent water ingress.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a novel waterproof RJ45 connector, comprising a plastic shell, a terminal assembly, and a rear cover; the terminal assembly is disposed within the plastic shell; the terminal assembly includes a terminal group and an assembly body, the terminal group including 8 terminals; each terminal includes a forward-bending elastic contact portion, a middle retaining portion, and a rear soldering foot portion, totaling 8 soldering feet; the 8 soldering feet include 4 upper soldering feet and 4 lower soldering feet;
[0006] The upper part of the back cover has four square through holes, the shape and size of which match the shape and size of the lower welding feet. The four lower welding feet are respectively inserted into the four square through holes and fixedly connected by electric welding. The upper end of the back cover, above the four square through holes, has four clearance grooves, the shape and size of which match the shape and size of the upper welding feet. The four upper welding feet are respectively inserted into the four clearance grooves and fixedly connected by electric welding. The assembly structure of the upper and lower welding feet with the back cover ensures the stability of the upper and lower welding feet.
[0007] It also includes a rubber sealing ring and a waterproof adhesive layer; the rubber sealing ring is set on the front end face of the plastic shell; waterproof adhesive is applied at the welded end of the rear cover to form a waterproof adhesive layer, which isolates the potential for water to enter from the outside and inside.
[0008] The plastic shell is made of one-piece injection molded plastic or plastic.
[0009] The rubber sealing ring is made of insulating rubber material and has good waterproof properties, which can prevent moisture from entering, keep the inside of the plastic shell dry, prevent water seepage and avoid damage to the internal circuit.
[0010] The assembly body is provided with a terminal slot, and the middle retaining part of the terminal group is fixedly installed in the terminal slot of the assembly body by plastic die casting.
[0011] The included angle α between the middle retaining part and the elastic contact part of the terminal group is 60-64°, which ensures that each elastic contact part can make 100% complete contact with the corresponding plug, thereby improving the electrical connection yield and the stability of signal transmission.
[0012] The back cover has two horizontal grooves on both sides of the middle section, and the plastic shell has two cylindrical plastic feet that extend backward from the two horizontal grooves respectively.
[0013] Compared with the prior art, the beneficial effects of this utility model are: the assembly structure of the upper and lower welding feet with the back cover ensures the stability of the upper and lower welding feet; the rubber sealing ring is set on the front end face of the plastic shell, and the rear welding point is sealed with a waterproof adhesive layer, which isolates the potential for water to enter from the outside and inside. Attached Figure Description
[0014] Figure 1 Yes: Exploded view of the components of this utility model;
[0015] Figure 2 Yes: 3D enlarged view of the terminal block;
[0016] Figure 3 Yes: A diagram showing the assembly of the terminal assembly, back cover, and rubber sealing ring;
[0017] Figure 4 Yes: Rear-view perspective view of this utility model (without waterproof adhesive layer);
[0018] Figure 5 Yes: Rear view perspective of this utility model (without back cover and waterproof adhesive layer);
[0019] Figure 6 Yes: This utility model is three-dimensional Figure 1 ;
[0020] Figure 7 Yes: This utility model is three-dimensional Figure 2 .
[0021] Explanation of reference numerals in the attached drawings: 1. Plastic housing; 101. Cylindrical plastic foot; 2. Terminal assembly; 201. Assembly body; 202. Upper solder foot; 203. Lower solder foot; 3. Rear cover; 301. Square through hole; 302. Alignment groove; 303. Horizontal groove; 4. Rubber sealing ring; 5. Waterproof adhesive layer. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The left, right, front, and rear directions are all for the convenience of description and can be modified in practice. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] like Figures 1 to 7 As shown, a new type of waterproof RJ45 connector, such as Figure 1 , Figure 2 and Figure 3 As shown, it includes a plastic housing 1, a terminal assembly 2, and a rear cover 3; the terminal assembly 2 is disposed inside the plastic housing 1; the terminal assembly 2 includes a terminal group and an assembly body 201, the terminal group includes 8 terminals; each terminal includes a forward and downward bent elastic contact portion, a middle retaining portion, and a rear welding foot portion, totaling 8 welding feet; the 8 welding feet include 4 upper welding feet 202 and 4 lower welding feet 203;
[0024] like Figure 4 As shown, the upper part of the back cover 3 is provided with four square through holes 301. The shape and size of the square through holes 301 match the shape and size of the lower welding feet 203. The four lower welding feet 203 are respectively inserted into the four square through holes 301 and fixedly connected by electric welding. The upper end of the back cover 3, above the four square through holes 301, is provided with four clearance grooves 302. The shape and size of the clearance grooves 302 match the shape and size of the upper welding feet 202. The four upper welding feet 202 are respectively inserted into the four clearance grooves 302 and fixedly connected by electric welding. The assembly structure of the upper welding feet 202 and lower welding feet 203 with the back cover 3 ensures the stability of the upper welding feet 202 and lower welding feet 203.
[0025] like Figure 1 and Figure 3 As shown, it also includes a rubber sealing ring 4 and a waterproof adhesive layer 5; the rubber sealing ring 4 is set on the front end face of the plastic shell 1; waterproof adhesive is applied at the welded end of the rear cover 3 to form a waterproof adhesive layer 5, which isolates the potential for water to enter from the outside and inside.
[0026] like Figure 1 and Figure 4As shown, the plastic housing 1 is a one-piece injection molded plastic or plastic material.
[0027] like Figure 1 and Figure 4 As shown, the rubber sealing ring 4 is made of insulating rubber material, which has good waterproof properties, thus preventing water vapor from entering, keeping the inside of the plastic shell 1 dry, preventing water seepage and avoiding damage to the internal circuit.
[0028] like Figure 2 As shown, a terminal slot is provided inside the assembly 201, and the middle retaining part of the terminal group is fixedly installed in the terminal slot of the assembly 201 by plastic die casting.
[0029] like Figure 2 As shown, the included angle α between the middle retaining part and the elastic contact part of the terminal group is 60-64°, which can ensure that each elastic contact part can make 100% complete contact with the corresponding plug, improve the electrical connection yield, and the stability of signal transmission.
[0030] like Figure 3 and Figure 4 As shown, the rear cover 3 has two transverse grooves 303 on both sides of the middle part, and the plastic shell 1 has two cylindrical plastic feet 101 at the rear, which extend backward from the two transverse grooves 303 respectively.
[0031] The embodiments described above are merely preferred embodiments of this utility model. Ordinary variations and substitutions made by those skilled in the art within the scope of this utility model's technical solution should be included within the protection scope of this utility model.
Claims
1. A novel waterproof RJ45 connector, comprising a plastic housing, a terminal assembly, and a rear cover; the terminal assembly is disposed within the plastic housing; the terminal assembly includes a terminal group and an assembly body, the terminal group including eight terminals; each terminal includes a forward-bent-down elastic contact portion, a middle retaining portion, and a rear soldering foot portion, totaling eight soldering feet; the eight soldering feet include four upper soldering feet and four lower soldering feet; characterized in that: The upper part of the rear cover is provided with four square through holes. The shape and size of the square through holes match the shape and size of the lower welding feet. The four lower welding feet are respectively inserted into the four square through holes and fixedly connected by electric welding. The upper end of the rear cover, above the four square through holes, is provided with four clearance grooves. The shape and size of the clearance grooves match the shape and size of the upper welding feet. The four upper welding feet are respectively inserted into the four clearance grooves and fixedly connected by electric welding. It also includes a rubber sealing ring and a waterproof adhesive layer; the rubber sealing ring is disposed on the front end face of the plastic shell; Waterproof adhesive is applied to the welded area at the rear end of the back cover to form a waterproof adhesive layer.
2. The novel waterproof RJ45 connector according to claim 1, characterized in that: The plastic shell is made of one-piece injection molded plastic or plastic.
3. The novel waterproof RJ45 connector according to claim 1, characterized in that: The rubber sealing ring is made of insulating rubber material.
4. A novel waterproof RJ45 connector according to claim 1, characterized in that: The assembly body is provided with a terminal slot, and the middle retaining part of the terminal group is fixedly installed in the terminal slot of the assembly body by plastic die casting.
5. A novel waterproof RJ45 connector according to claim 1, characterized in that: The included angle α between the middle retaining part and the elastic contact part of the terminal group is 60-64°.
6. A novel waterproof RJ45 connector according to claim 1, characterized in that: The back cover has two horizontal grooves on both sides of the middle section, and the plastic shell has two cylindrical plastic feet that extend backward from the two horizontal grooves respectively.