Waterproof power connector
Through a multi-layered waterproof structure design, the problem of poor sealing performance in existing waterproof power connectors has been solved, achieving high-efficiency waterproof performance and stable connection, while reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN WEIZE COMM TECH CO LTD
- Filing Date
- 2025-05-23
- Publication Date
- 2026-05-15
AI Technical Summary
The single-layer sealing structure of existing waterproof power connectors can easily lead to poor sealing performance, affecting the normal use and safety of the equipment.
It adopts a multi-layered waterproof structure design, including components such as slots, sealing gaskets, limit seats and rubber rings, to form a surrounding sealing barrier. It prevents water intrusion through snap-fit and compression deformation, and achieves insertion stability through the cooperation of positioning rods and slots.
It improves waterproofing, ensures stable and quick connection, reduces maintenance costs, and avoids short circuits and safety hazards caused by moisture.
Smart Images

Figure CN224249035U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power connection cable technology, specifically a waterproof power connector. Background Technology
[0002] As a key carrier of power transmission, power cords are a core element in ensuring the normal operation of electronic devices. In modern society, from everyday mobile phones, computers, and home appliances to large-scale machinery in industrial production, all electronic devices require electrical power to operate. Power cords bear the important responsibility of safely and stably transmitting electrical energy from external power sources such as sockets and generators to the devices.
[0003] From a safety perspective, water is conductive. Once it enters the power connector or other electrical equipment, it can easily cause a short circuit. A short circuit can not only cause the equipment to stop working instantly, but may also generate electric sparks. In flammable and explosive environments, it can even cause serious accidents such as fires or explosions, posing a huge threat to the safety of people's lives and property. Waterproof structures can effectively prevent water from entering and avoid such dangerous situations.
[0004] Chinese Utility Model Patent Publication No. CN217720107U discloses a waterproof power connector. This waterproof power connector, through the protrusion and first chamfer on the male connector and the groove and second chamfer on the female connector, enables reliable, safe and quick insertion of the male and female connectors during connection. At the same time, the two sealing rings on the male connector effectively improve the sealing between the male and female connectors, resulting in better waterproof performance and safer use. However, although this waterproof power connector is designed with two sealing rings to achieve a seal, its single-layer waterproof structure can easily lead to poor sealing performance, thus affecting its normal use. Summary of the Invention
[0005] The technical problem to be solved by this utility model is to provide a waterproof power connector, which can effectively solve the problems in the prior art.
[0006] The technical solution adopted by this utility model is: a waterproof power connector, including a plug, a socket, a panel assembly and a tail sealing body. A contact end is provided between the plug and the socket. The end of the plug away from the socket is connected to the tail sealing body. A slot is provided at the end of the plug near the contact end. A sealing gasket is sleeved on the plug through the slot. A tail cap is snapped onto the end of the plug near the tail sealing body.
[0007] The panel assembly includes a panel body that is sleeved with a plug, and a sealing gasket two is fixedly installed on the outer edge of the panel body, the sealing gasket two abutting against the plug.
[0008] Preferably, the panel body has a second slot adapted to the contact end at one end near the plug, a positioning rod is fixedly installed at one end of the contact end near the panel assembly, and a second positioning groove is provided at one end of the panel body near the plug for insertion and installation of the positioning rod.
[0009] Through the above technical solution, the insertion and cooperation of the positioning rod and the second positioning groove can realize the positioning of the contact end and the panel body. In addition, with the second slot, the contact end can be limited, which enhances the stability of the insertion.
[0010] Preferably, the panel body has a protective groove adapted to the socket at one end near the plug, and a positioning seat is fixedly installed at the outer edge of the panel body, with a positioning groove three extending through the positioning seat.
[0011] Through the above technical solution, the protective groove facilitates its connection with the socket, and the cooperation between the positioning seat and the positioning groove three allows the entire connector to be connected when the two are connected.
[0012] Preferably, two limiting seats are fixedly installed at the two ends of the plug away from the center line, and two identical limiting seats are provided, which are symmetrically distributed about the center line of the plug.
[0013] The above technical solution, through the design of two limiting seats, can further improve the stability of the overall connector, thereby preventing the overall equipment from shifting.
[0014] Preferably, the end of the plug away from the panel assembly has a limiting groove 1 that matches the tail cover, the end of the tail cover near the plug has a positioning frame fixedly installed, and the end of the plug away from the panel assembly has a limiting groove 2 that matches the positioning frame.
[0015] By using the above technical solution, the positioning frame can be inserted into the limiting groove 2 to form a double snap-fit structure with the limiting groove 1, which improves the connection strength between the tail cover and the plug, and also limits the axial displacement of the tail cover.
[0016] Preferably, a locking block is fixedly installed at the end of the plug away from the panel assembly, and a positioning groove is provided at the end of the positioning frame near the plug. The cross-sections of the locking block and the positioning frame are both designed with inclined chamfers.
[0017] Through the above technical solution, the inclined chamfer design facilitates the quick sliding of the locking block into the positioning groove one, realizing the quick locking of the tail cover and the plug. At the same time, the chamfer structure can guide the positioning frame to be embedded into the limiting groove two, which can facilitate the quick connection between the two.
[0018] Preferably, a rubber ring is fixedly installed at the outer edge of the tail sealing body, and the diameter of the rubber ring is larger than the diameter of the tail sealing body.
[0019] With the above technical solution, the outer diameter of the rubber ring is larger than that of the tail sealing body. When the tail cover and the plug are engaged, it can be squeezed and deformed to fill the gap between the tail sealing body and the plug, forming a sealing barrier to prevent moisture from entering.
[0020] Compared with the prior art, the present invention provides a waterproof power connector, which has the following advantages:
[0021] 1. This waterproof power connector is fixed to the plug by a slot 1, which is squeezed against the panel body when plugged in, preventing water from entering from the gap between the plug and the panel. The sealing gasket 2 is embedded in the outer edge of the panel body and fits tightly against the outside of the socket to form a surrounding sealing barrier. The diameter difference is used to squeeze and deform to fill the gap at the tail. With the snap-fit of the tail cover, the path of water penetration from the cable inlet is blocked, thus forming a multi-layer waterproof structure.
[0022] 2. This waterproof power connector automatically aligns the contact end upon insertion, preventing poor contact caused by misalignment. Furthermore, the cooperation of the locking block and positioning groove one, as well as the positioning frame and limiting groove two, facilitates quick connection between the tail cover and the plug, improving installation efficiency. Moreover, it requires no tools for disassembly, allowing for quick cable replacement or internal structure inspection, thus reducing maintenance costs. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the explosive structure of this utility model. Figure 1 ;
[0024] Figure 2 This is a schematic diagram of the explosive structure of this utility model. Figure 2 ;
[0025] Figure 3 This is a schematic diagram of the disassembled plug and tail cap structure of this utility model;
[0026] Figure 4 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;
[0027] Figure 5 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;
[0028] Figure 6 This is a cross-sectional structural diagram of the present invention.
[0029] The components are as follows: 1. Plug; 2. Contact end; 3. Socket; 4. Positioning rod; 5. Slot 1; 6. Sealing gasket 1; 7. Limiting seat; 8. Limiting groove 1; 9. Limiting groove 2; 10. Locking block; 11. Tail sealing body; 12. Rubber ring; 13. Tail cover; 14. Positioning frame; 15. Positioning groove 1; 16. Panel assembly; 1601. Panel body; 1602. Sealing gasket 2; 1603. Slot 2; 1604. Positioning groove 2; 1605. Protective groove; 1606. Positioning seat; 1607. Positioning groove 3. Detailed Implementation
[0030] 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. 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.
[0031] Example 1: As Figure 1-6 As shown, the present invention provides a waterproof power connector, including a plug 1, a socket 3, a panel assembly 16 and a tail sealing body 11. A contact end 2 is provided between the plug 1 and the socket 3. The end of the plug 1 away from the socket 3 is connected to the tail sealing body 11. A slot 5 is provided at the end of the plug 1 near the contact end 2. A sealing gasket 6 is sleeved on the plug 1 through the slot 5. A tail cap 13 is snapped onto the end of the plug 1 near the tail sealing body 11.
[0032] The panel assembly 16 includes a panel body 1601 that is sleeved with the plug 1. A second sealing gasket 1602 is fixedly installed on the outer edge of the panel body 1601, and the second sealing gasket 1602 abuts against the plug 1.
[0033] Specifically, the panel body 1601 has a slot 1603 that matches the contact end 2 at one end near the plug 1, a positioning rod 4 is fixedly installed at one end of the contact end 2 near the panel assembly 16, and a positioning groove 1604 that is inserted into the positioning rod 4 at one end of the panel body 1601 near the plug 1.
[0034] The advantage is that the insertion and cooperation of the positioning rod 4 and the positioning groove 1604 can realize the positioning of the contact end 2 and the panel body 1601. In addition, with the cooperation of the second slot 1603, the contact end 2 can be limited, which enhances the insertion stability.
[0035] Specifically, the panel body 1601 has a protective groove 1605 adapted to the socket 3 at one end near the plug 1. A positioning seat 1606 is fixedly installed on the outer edge of the panel body 1601. A positioning groove 1607 is provided through the positioning seat 1606. The advantage is that the protective groove 1605 facilitates its connection with the socket 3. Furthermore, the cooperation between the positioning seat 1606 and the positioning groove 1607 allows the entire connector to be connected when the two are connected.
[0036] Specifically, two limit seats 7 are fixedly installed at the two ends of the plug 1 away from the center line. There are two identical limit seats 7, and the two limit seats 7 are symmetrically distributed about the center line of the plug 1. The advantage is that the design of two limit seats 7 can further improve the stability of the overall connector, thereby improving the stability of the overall connector and preventing the overall equipment from shifting.
[0037] Example 2: Figure 2-6 As shown, this is an improvement on the previous embodiment.
[0038] Specifically, the end of the plug 1 away from the panel assembly 16 is provided with a limiting groove 8 that is adapted to the tail cover 13. The end of the tail cover 13 near the plug 1 is fixedly installed with a positioning frame 14. The end of the plug 1 away from the panel assembly 16 is provided with a limiting groove 9 that is adapted to the positioning frame 14. The advantage is that by inserting the positioning frame 14 into the limiting groove 9, a double snap-fit structure can be formed with the limiting groove 8, which improves the connection strength between the tail cover 13 and the plug 1, and also limits the axial displacement of the tail cover 13.
[0039] Specifically, a locking block 10 is fixedly installed at the end of the plug 1 away from the panel assembly 16, and a positioning groove 15 is provided at the end of the positioning frame 14 near the plug 1. The cross-sections of the locking block 10 and the positioning frame 14 are both designed with an inclined chamfer. The advantage is that the inclined chamfer design makes it easy for the locking block 10 to slide into the positioning groove 15 quickly, so as to realize the quick engagement of the tail cover 13 and the plug 1. At the same time, the chamfer structure can guide the positioning frame 14 to be embedded in the limiting groove 9, which can facilitate the quick connection between the two.
[0040] Specifically, a rubber ring 12 is fixedly installed on the outer edge of the tail sealing body 11. The diameter of the rubber ring 12 is larger than the diameter of the tail sealing body 11. The advantage is that the outer diameter of the rubber ring 12 is larger than that of the tail sealing body 11, so it can be squeezed and deformed when the tail cover 13 is engaged with the plug 1, filling the gap between the tail sealing body 11 and the plug 1, forming a sealing barrier to prevent moisture from entering.
[0041] Working principle: During use, the socket 3 is embedded into the protective groove 1605 of the panel body 1601. It is fixed by the positioning seat 1606 engaging with the limiting groove 9 on the outside of the socket 3. The sealing gasket 1602 is pressed against the socket 3 in the protective groove 1605 to form the first seal. Subsequently, the positioning rod 4 of the contact end 2 is inserted into the positioning groove 1604 of the panel body 1601. At the same time, the locking groove 1603 limits the contact end 2, ensuring that the plug 1 and the socket 3 are accurately aligned. During the insertion of the plug 1, the sealing gasket 6 is pressed between the plug 1 and the panel body 1601 to form the second seal. After sealing, the tail sealing body 11 wraps the power cable, aligning the positioning frame 14 of the tail cover 13 with the limiting groove 9 of the plug 1, and the locking block 10 with the positioning groove 15. Guided by the tilt and chamfer, it is quickly inserted. The limiting seat 7 on the inner side of the tail cover 13 is inserted into the limiting groove 8 of the tail sealing body 11. The rubber ring 12 is deformed due to its outer diameter being larger than that of the tail sealing body 11, filling the gap between the plug 1 and the tail sealing body 11, forming a third seal. The double locking structure of the positioning frame 14 and the limiting groove 9, and the locking block 10 and the positioning groove 15, ensures that the tail cover 13 is firmly fixed, completing the overall installation.
[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A waterproof power connector, comprising a plug (1), a socket (3), a panel assembly (16), and a tail sealing body (11), characterized in that: A contact end (2) is provided between the plug (1) and the socket (3). The end of the plug (1) away from the socket (3) is connected to the tail sealing body (11). A slot (5) is provided at the end of the plug (1) near the contact end (2). A sealing gasket (6) is fitted onto the plug (1) through the slot (5). A tail cap (13) is snapped onto the end of the plug (1) near the tail sealing body (11). The panel assembly (16) includes a panel body (1601) that is sleeved with the plug (1). A sealing gasket (1602) is fixedly installed on the outer edge of the panel body (1601), and the sealing gasket (1602) abuts against the plug (1).
2. The waterproof power connector according to claim 1, characterized in that: The panel body (1601) has a slot 2 (1603) that is adapted to the contact end (2) at one end near the plug (1). A positioning rod (4) is fixedly installed at one end of the contact end (2) near the panel assembly (16). The panel body (1601) has a positioning groove 2 (1604) that is plugged into the positioning rod (4) at one end near the plug (1).
3. A waterproof power connector according to claim 1, characterized in that: The panel body (1601) has a protective groove (1605) adapted to the socket (3) at one end near the plug (1). A positioning seat (1606) is fixedly installed on the outer edge of the panel body (1601), and a positioning groove (1607) is provided through the positioning seat (1606).
4. A waterproof power connector according to claim 1, characterized in that: The plug (1) has two fixed limiting seats (7) installed at its two ends away from the center line. The two limiting seats (7) are identical and are symmetrically distributed about the center line of the plug (1).
5. A waterproof power connector according to claim 1, characterized in that: The end of the plug (1) away from the panel assembly (16) is provided with a limiting groove 1 (8) that is adapted to the tail cover (13). The end of the tail cover (13) near the plug (1) is fixedly installed with a positioning frame (14). The end of the plug (1) away from the panel assembly (16) is provided with a limiting groove 2 (9) that is adapted to the positioning frame (14).
6. A waterproof power connector according to claim 5, characterized in that: The plug (1) is fixedly mounted with a locking block (10) at the end away from the panel assembly (16), and the positioning frame (14) is provided with a positioning groove (15) at the end near the plug (1). The cross-sections of the locking block (10) and the positioning frame (14) are both designed with inclined chamfers.
7. A waterproof power connector according to claim 1, characterized in that: A rubber ring (12) is fixedly installed on the outer edge of the tail sealing body (11), and the diameter of the rubber ring (12) is larger than the diameter of the tail sealing body (11).