Rainproof outdoor charging pile protection structure
By employing a double-ring flow guiding structure, a magnetic sealing soft rubber layer, and a telescopic tube buffer design, the problem of rainwater leakage at the outdoor charging pile interface is solved, achieving dynamic waterproof sealing and mechanical stress absorption for the charging gun.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI ANDA PIPING ELECTRICAL TECH
- Filing Date
- 2025-08-11
- Publication Date
- 2026-06-12
AI Technical Summary
Outdoor charging stations are susceptible to water leakage when stored, and traditional sealing rings are not effective in protecting them.
It adopts a double-ring flow guiding structure, a magnetic sealing soft rubber layer and a telescopic tube buffer design to form a dynamic waterproof seal. The magnetic ring adsorption force and the soft rubber layer fill the gaps, and the telescopic tube absorbs mechanical stress.
It achieves effective waterproofing of the charging gun during storage and use, preventing rainwater from seeping in, protecting the inside of the charging socket, and preventing hard impacts.
Smart Images

Figure CN224348786U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of charging pile technology, specifically a rainproof outdoor charging pile protection structure. Background Technology
[0002] Current outdoor charging stations have significant deficiencies in the protection of their charging interfaces. When the charging gun is inserted into the charging socket while stored, the interface mating surface is often exposed to the external environment. Traditional single-layer rubber sealing rings are insufficient to withstand the impact of heavy rain, and rainwater can easily seep into the internal circuitry along the assembly gaps between the charging gun and the socket. Summary of the Invention
[0003] The purpose of this utility model is to provide a rainproof outdoor charging pile protection structure. Through a double-ring flow guiding structure, a magnetic sealing soft rubber layer, and a telescopic tube buffer design, dynamic waterproof protection is achieved for the charging gun during storage and operation, solving the problem of rainwater leakage at the interface of the outdoor charging pile.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] A rainproof outdoor charging pile protection structure includes a charging shell and a charging socket. A first ring is arranged around the periphery of the charging socket, and a second ring is arranged around the periphery of the first ring. An annular slot is formed between the first ring and the second ring. A telescopic tube is connected to one side of the tight-fitting ring. The tight-fitting ring and the telescopic tube are sleeved on the outside of the charging gun. A fixing plate is welded around the outer wall of the charging gun. The fixing plate is fixedly connected to one end of the telescopic tube by sealant. The outer peripheral wall of the tight-fitting ring is coated with a soft rubber layer for sealing gaps. A magnetic ring is provided on the contact surface between the tight-fitting ring and the charging shell.
[0006] Preferably, the first and second rings are coaxially distributed.
[0007] Preferably, the annular slot is fitted with the tight-fitting ring with a clearance.
[0008] Preferably, the outer edge of the second ring is connected to an expansion ring, the inner diameter of the expansion ring is equal to the diameter of the second ring, and the outer diameter of the expansion ring is greater than the inner diameter of the second ring.
[0009] Preferably, the tight-fitting ring, the charging gun, and the telescopic tube are coaxially distributed.
[0010] Preferably, the soft adhesive layer is an elastic silicone with a Shore hardness of 40A.
[0011] Preferably, the bottom of the annular slot is made of ferritic stainless steel.
[0012] Preferably, the charging socket is bolted to the outer wall of the charging housing.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] This invention features an annular slot that forms a primary water barrier. When the sealing ring is inserted, the attraction between the magnetic ring and the ferromagnetic bottom of the slot causes the soft rubber layer to undergo controllable elastic deformation, fully filling the microscopic gaps in the inner wall of the annular slot and establishing a secondary dynamic seal. During the use of the charging gun, the corrugated structure of the telescopic tube absorbs mechanical stress through axial expansion and contraction and radial deflection, maintaining the waterproof connection between the sealing ring and the charging gun while preventing the charging gun from rigidly colliding with the car's charging port. Attached Figure Description
[0015] Figure 1 This is a diagram showing the overall structural connection relationship of this utility model;
[0016] Figure 2 This is a structural diagram of the charging socket of this utility model;
[0017] Figure 3 This is a diagram showing the external structure of the charging gun of this utility model.
[0018] In the diagram: 1. Charging shell; 2. Charging socket; 3. First ring; 4. Second ring; 5. Annular slot; 6. Sealing ring; 7. Outer expansion ring; 8. Charging gun; 9. Telescopic tube; 10. Fixing plate; 11. Soft rubber layer; 12. Magnetic ring. Detailed Implementation
[0019] 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.
[0020] To address the issue of water ingress into the charging interfaces of existing outdoor charging stations, the following technical solution is provided. Please refer to [link / reference]. Figure 1-3 ;
[0021] A rainproof outdoor charging pile protection structure includes a charging shell 1 and a charging gun 8. A charging socket 2 is bolted to the outer wall of the charging shell 1. A first ring 3 is arranged around the periphery of the charging socket 2. A second ring 4 is arranged around the periphery of the first ring 3. The first ring 3 and the second ring 4 are coaxially distributed. An annular slot 5 is formed between the first ring 3 and the second ring 4. The annular slot 5 is clearance-fitted with a tight-fitting ring 6.
[0022] The outer edge of the second ring 4 is connected to an expansion ring 7. The inner diameter of the expansion ring 7 is equal to the diameter of the second ring 4, and the outer diameter of the expansion ring 7 is greater than the inner diameter of the second ring 4, forming a trumpet-shaped inlet, which facilitates the precise insertion of the tight-fitting ring 6 into the annular slot 5 and improves the connection convenience.
[0023] One side of the tight-fitting ring 6 is connected to the telescopic tube 9. The tight-fitting ring 6 and the telescopic tube 9 are sleeved on the outside of the charging gun 8. The tight-fitting ring 6, the charging gun 8 and the telescopic tube 9 are coaxially distributed. A fixing plate 10 is welded around the outer wall of the charging gun 8. The fixing plate 10 and one end of the telescopic tube 9 are fixedly connected by sealant to form a waterproof connection.
[0024] The outer peripheral wall of the sealing ring 6 is coated with a soft rubber layer 11 for sealing gaps. The soft rubber layer (11) is made of elastic silicone with a Shore hardness of 40A. A magnetic ring 12 is provided on the contact surface between the sealing ring 6 and the charging shell 1. The bottom of the annular slot 5 is made of ferritic stainless steel, which forms a magnetic adsorption with the magnetic ring 12. When the sealing ring 6 enters the annular slot 5, the soft rubber layer 11 abuts against the inner wall of the second ring 4 to fill the gap.
[0025] Working principle: When the charging gun 8 is stored in the charging socket 2 in a non-charging state, the sealing ring 6 is embedded in the annular slot 5 of the charging shell 1. At this time, the magnetic ring 12 is attracted and fixed to the magnetic bottom of the annular slot 5, causing the soft rubber layer 11 to be deformed under pressure and tightly adhere to the inner wall of the second surrounding ring 4, forming the first layer of waterproof seal. The flared structure of the outward expansion ring 7 guides rainwater to flow along the slope to the outside of the charging shell 1, preventing water from seeping into the charging socket 2. When the charging gun 8 is pulled out of the charging socket 2 and inserted into the car charging port, the telescopic tube 9 moves and extends synchronously with the charging gun 8. The redundant length design of the telescopic tube 9 allows the charging gun 8 to absorb stress through its own deformation when it deviates at an angle on the car charging port, preventing the charging gun 8 from hard collision with the car charging port.
[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0027] 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.
Claims
1. A rainproof outdoor charging pile protection structure, comprising a charging shell (1) and a charging socket (2), characterized in that, The charging socket (2) is surrounded by a first ring (3), and a second ring (4) is provided around the first ring (3). An annular slot (5) is formed between the first ring (3) and the second ring (4). A telescopic tube (9) is connected to one side of the tight-fitting ring (6). The tight-fitting ring (6) and the telescopic tube (9) are fitted on the outside of the charging gun (8). A fixing plate (10) is welded around the outer wall of the charging gun (8). The fixing plate (10) is fixedly connected to one end of the telescopic tube (9) by sealant. The outer peripheral wall of the tight-fitting ring (6) is coated with a soft rubber layer (11) for sealing gaps. A magnetic ring (12) is provided on the contact surface between the tight-fitting ring (6) and the charging shell (1).
2. The rainproof outdoor charging pile protection structure according to claim 1, characterized in that, The first ring (3) and the second ring (4) are coaxially distributed.
3. The rainproof outdoor charging pile protection structure according to claim 2, characterized in that, The annular slot (5) and the tight-fitting ring (6) are fitted with a clearance.
4. The rainproof outdoor charging pile protection structure according to claim 3, characterized in that, The outer edge of the second ring (4) is connected to an outer expansion ring (7). The inner diameter of the outer expansion ring (7) is equal to the diameter of the second ring (4), and the outer diameter of the outer expansion ring (7) is greater than the inner diameter of the second ring (4).
5. The rainproof outdoor charging pile protection structure according to claim 4, characterized in that, The tight-fitting ring (6), the charging gun (8), and the telescopic tube (9) are coaxially distributed.
6. The rainproof outdoor charging pile protection structure according to claim 5, characterized in that, The soft rubber layer (11) is an elastic silicone with a Shore hardness of 40A.
7. The rainproof outdoor charging pile protection structure according to claim 6, characterized in that, The bottom of the annular slot (5) is made of ferritic stainless steel.
8. The rainproof outdoor charging pile protection structure according to claim 7, characterized in that, The charging socket (2) is bolted to the outer wall of the charging housing (1).