A protective cover for a charging pile and a charging pile

Abstract

The utility model relates to a charging pile technical field, concretely relates to a protective cover for charging pile and charging pile. The utility model provides a protective cover for charging pile, and the charging pile is provided with mounting hole, and the protective cover is provided with connecting portion and protection portion made of elastic material, and the connecting portion and protection portion are connected with each other, and the protection portion is provided with threading hole, and the edge of threading hole is provided with adjusting piece for controlling the aperture of threading hole. The protective cover is installed on the charging pile through the connecting portion, and the protective cover covers the mounting hole. Through using the connecting portion and protection portion made of elastic material, the elastic material can be self-adapting compensation installation error and the deformation caused by temperature change, reduces the installation difficulty and improves the sealing performance of protective cover. Through setting adjusting piece of adjusting aperture on the edge of threading hole, the protective cover can adapt to the cable of different line diameter, thereby solve the technical problem that the traditional protection mode cannot adapt to the line diameter change demand, and the installation and maintenance difficulty is big.

Description

Technical Field

[0001] This utility model relates to the field of charging pile technology, specifically to a protective cover for a charging pile and a charging pile. Background Technology

[0002] Existing charging stations typically require customer cable inlets to be installed in the cabinet. However, this design has a significant safety flaw: after wiring is completed, the inlet becomes an opening, making it easy for external contaminants such as sand and moisture to enter the charging station and damage electrical components.

[0003] Currently, the industry commonly uses fireproof putty to seal the cable inlet holes for protection. However, this method has many problems: First, the construction quality of fireproof putty is greatly affected by the operator's skill level, and it is easy to have incomplete sealing. Second, fireproof putty is difficult to remove after it has hardened, which makes subsequent maintenance inconvenient. Third, fireproof putty material is expensive and the construction process is time-consuming.

[0004] Furthermore, existing protection methods cannot adapt to different wire diameters, requiring re-construction when the wire diameter changes, increasing maintenance costs. More importantly, traditional protection methods lack effective aperture adjustment capabilities, failing to balance protective effectiveness with ease of installation. These technical shortcomings severely impact the lifespan and maintenance convenience of charging piles, necessitating a new protection solution. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a protective cover and charging pile for charging piles, which solves the technical problems that traditional protection methods cannot adapt to changes in wire diameter and are difficult to install, disassemble and maintain.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] This utility model provides a protective cover for a charging pile. The charging pile has an installation hole and includes a connecting part and a protective part made of elastic material. The connecting part and the protective part are connected to each other. The protective part has a wire-passing hole, and an adjusting element for controlling the diameter of the wire-passing hole is provided at the edge of the wire-passing hole. The protective cover is installed on the charging pile through the connecting part and covers the installation hole.

[0008] In one possible implementation, the diameter of the connecting portion is larger than the diameter of the mounting hole.

[0009] In one possible implementation, an adhesive component is provided on the side of the connecting portion facing the charging pile, and the connecting portion is bonded to the charging pile through the adhesive component.

[0010] In one possible implementation, the protective cover further includes multiple fasteners, the connecting portion has multiple connecting through holes, the charging pile has multiple connecting slots corresponding to the connecting through holes, and the fasteners pass through the connecting through holes and connect to the connecting slots.

[0011] In one possible implementation, the plurality of connecting vias are spaced apart.

[0012] In one possible implementation, the connecting part is provided with a magnetic suction member on the side facing the charging pile, and the connecting part is detachably connected to the charging pile through the magnetic suction member.

[0013] In one possible implementation, both the connecting part and the protective part are made of silicone.

[0014] This utility model also provides a charging pile, including a charging pile cabinet and the aforementioned protective cover. The charging pile cabinet has an installation hole, and the protective cover is installed on the charging pile cabinet through the connecting part, and the protective cover covers the installation hole.

[0015] The beneficial effects of this utility model are as follows: Compared with the prior art, this utility model uses a connecting part and a protective part made of elastic material. The elastic material can adaptively compensate for deformation caused by installation errors and temperature changes, reducing the difficulty of installation and disassembly while improving the sealing performance of the protective cover. Furthermore, by setting an adjusting element for adjusting the diameter of the wire hole at the edge, the protective cover can adapt to cables of different diameters, thereby solving the technical problems of traditional protection methods being unable to adapt to changes in wire diameter and being difficult to install, disassemble, and maintain. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the assembly structure of a protective cover provided by this utility model.

[0017] Figure 2 This is a schematic diagram of the assembly structure of a charging cable provided by this utility model.

[0018] Figure 3 This is an assembly structure diagram of a protective cover provided by this utility model from another perspective.

[0019] Figure 4 This is a schematic diagram of the structure of a protective cover and a charging cable in a mating state, as provided by this utility model.

[0020] Attached image labels:

[0021] 1. Protective cover; 11. Connecting part; 12. Protective part; 121. Cable hole; 13. Adjusting part; 14. Fastener; 2. Charging pile; 21. Charging pile cabinet; 212. Mounting hole. Detailed Implementation

[0022] To solve the above-mentioned technical problems, this utility model provides a protective cover for a charging pile and a charging pile. The technical solution and embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0023] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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 application.

[0024] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "connection" and "joining" should be interpreted broadly, for example, they can refer to fixed connection, detachable connection, or integral connection; for those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0025] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0026] Traditional charging pile inlet hole protection technologies using fire-retardant sealant suffer from insufficient sealing reliability. Because the physical properties of fire-retardant sealant are highly dependent on the quality of manual application, the interface bonding strength is significantly affected by the operator's skill level, easily leading to microscopic gaps between the cable and the sealant. These gaps can trigger capillary permeation under temperature changes or mechanical vibrations, allowing liquid water and solid particles from the external environment to penetrate the charging pile's internal cavity along the cable surface. Furthermore, the rigid structure formed after the fire-retardant sealant hardens cannot adapt to changes in cable diameter, requiring the original sealant layer to be damaged during later maintenance or line replacement, causing irreversible damage to the protective structure and incurring secondary construction costs.

[0027] If the above problems are not addressed, long-term moisture intrusion will cause electrochemical corrosion of the internal metal connectors of the charging pile, leading to increased contact resistance and localized overheating. When corrosion products accumulate at the high-voltage terminals, creepage paths may form, inducing insulation breakdown accidents. Simultaneously, debris generated from repeated sealing construction will accumulate at the bottom of the cabinet, adsorbing onto the cooling fan blades under air convection, causing a decrease in the efficiency of the forced air cooling system. This type of systemic degradation will significantly shorten the lifespan of the power modules and increase maintenance costs.

[0028] To address the aforementioned issues, this application first analyzes the structural defects of traditional fireproof sealant sealing methods, finding that they cannot form a dynamic sealing interface and lack reusability. To resolve the issue of micro-gaps easily forming at the cable-sealing interface, an adaptive sealing structure using elastic materials is considered, where elastic deformation can compensate for construction errors and adapt to thermal expansion and contraction. To solve the problem of rigid sealing bodies being unable to adapt to changes in wire diameter, an integrated aperture adjustment mechanism is explored within the sealing structure, achieving controllable aperture shrinkage through mechanical constraints. Further research into installation methods reveals that simple adhesive connections are prone to failure in vibration environments, necessitating the integration of physical fixing mechanisms to improve connection reliability.

[0029] like Figures 1 to 4 As shown, this utility model provides a protective cover 1 for a charging pile 2. The charging pile 2 has a mounting hole 212 and includes a connecting part 11 and a protective part 12 made of elastic material. The connecting part 11 and the protective part 12 are connected to each other. The protective part 12 has a wire-passing hole 121, and an adjusting member 13 for controlling the diameter of the wire-passing hole 121 is provided at the edge of the wire-passing hole 121. The protective cover 1 is mounted on the charging pile 2 through the connecting part 11, and the protective cover 1 covers the mounting hole 212.

[0030] The connecting part 11 and the protective part 12, which are made of elastic material, are two parts made of a material with resilience and deformation ability. The connecting part 11 is used to fix it to the mounting hole 212 of the charging pile 2, and the protective part 12 is used to cover the mounting hole 212. Specifically, silicone or rubber material can be used. The elastic material can adapt to different wire diameters and form a seal.

[0031] The cable hole 121 refers to the through hole structure set in the center of the protection part 12. Specifically, it can be implemented by using a circular or elliptical opening to allow the cable to pass through and keep the passage unobstructed.

[0032] Adjustment component 13 refers to a mechanical device used to change the size of the thread hole 121. Specifically, it can be achieved by using a wire tie, a buckle, or a retractable ring structure to reduce the hole diameter through physical constraints to achieve a seal.

[0033] Preferably, in this embodiment of the application, the adjusting member 13 is a wire tie, which is cheaper and has a more flexible adjustment range compared to other structures.

[0034] The working process and principle of this application are as follows: The protective cover 1 includes a connecting part 11 and a protective part 12, both made of elastic material and connected to each other. The connecting part 11 is used to install the protective cover 1 onto the charging pile 2, and the protective part 12 has a wire-passing hole 121. An adjusting member 13 is provided at the edge of the wire-passing hole 121 to control the diameter of the wire-passing hole 121. The protective cover 1 is installed on the charging pile 2 through the connecting part 11, covering the mounting hole 212 of the charging pile 2.

[0035] The connecting part 11 is made of elastic material, which can fit tightly against the surface of the charging pile 2 to achieve a good sealing effect. The protective part 12 is also made of elastic material, which can adapt to changes in different cable diameters. The adjusting part 13 on the edge of the wire hole 121 allows for adjustment of the hole size, further improving the sealing performance.

[0036] During installation, the connector 11 is first fixed to the charging pile 2, covering the mounting hole 212. Then, the cable is passed through the wire hole 121 of the protective part 12. Finally, the diameter of the wire hole 121 is adjusted using the adjusting component 13 to ensure a tight fit to the cable surface. This design ensures both effective protection and ease of subsequent maintenance and cable replacement.

[0037] The use of elastic material gives the protective cover 1 good adaptability and sealing performance. The design of the adjusting component 13 provides flexible adjustment, allowing the protective cover 1 to adapt to cables of different specifications. The overall structure is simple and reliable, and easy to install and operate.

[0038] The protective cover 1 is made of elastic material, which can adaptively compensate for deformation caused by installation errors and temperature changes, ensuring a long-term stable sealing effect. The adjustable cable hole 121 design makes the protective cover 1 suitable for cables of different specifications, improving its versatility. At the same time, the installation and removal process of the protective cover 1 is simple and quick, facilitating on-site operation and subsequent maintenance, reducing construction and maintenance costs. Furthermore, the complete structure of the protective cover 1 prevents fireproofing debris from contaminating the interior of the charging pile 2, thus helping to extend the service life of the charging pile 2.

[0039] See Figure 1 and Figure 2 Specifically, the diameter of the connecting part 11 is larger than the diameter of the mounting hole 212.

[0040] The connecting part 11 is made of an elastic material, and its outer diameter exceeds the inner diameter of the mounting hole 212. When the connecting part 11 is pressed into the mounting hole 212, the elastic material undergoes radial compression deformation, forming an interference fit structure.

[0041] Specifically, during installation, the operator applies axial pressure by aligning the connector 11 with the mounting hole 212 of the charging pile cabinet 21. The elastic material undergoes radial contraction deformation under pressure until it is fully inserted into the mounting hole 212. The radial expansion force generated by the material's recovery deformation causes the outer wall of the connector 11 to form frictional contact with the inner wall of the mounting hole 212. This frictional force resists the axial displacement of the protective cover 1. When used with adhesive components, the interference fit structure ensures uniform pressure on the adhesive layer, preventing peeling due to gaps. In dynamic environments, the interference fit design compensates for the preload reduction caused by material creep, maintaining long-term fixation.

[0042] Furthermore, an adhesive component (not shown in the figure) is provided on the side of the connecting part 11 facing the charging pile 2, and the connecting part 11 is bonded to the charging pile 2 by the adhesive component.

[0043] The adhesive component is a double-sided adhesive layer, and the adhesive material is selected from acrylic pressure-sensitive adhesive or silicone-based adhesive. The adhesive component and the connecting part 11 are integrally bonded by an in-mold molding process. The surface of the adhesive component is covered with release paper. During installation, the release paper is removed and the component is directly pressed onto the surface of the charging pile 2. Preferably, the adhesive material is 3M-5925.

[0044] Specifically, the adhesive component forms a molecular-level bond with the surface of the charging pile 2 through the bonding surface. The adhesive layer flows under pressure to fill microscopically uneven areas of the contact surface. After curing, the adhesive component forms a continuous adhesive layer, preventing moisture from seeping in from the edge of the connection portion 11. The elastic materials of the adhesive component and the connection portion 11 deform in tandem, maintaining contact pressure even when the surface of the charging pile 2 has curvature or unevenness.

[0045] The adhesive provides good adhesion, allowing the protective cover 1 to firmly attach to the surface of the charging pile 2, effectively preventing the protective cover 1 from falling off. At the same time, the adhesive connection method is simple to operate, requiring no complicated installation tools, and facilitating quick on-site installation. Furthermore, the adhesive connection also has good sealing properties, further enhancing the dust and water resistance of the protective cover 1 to the mounting holes 212 of the charging pile 2.

[0046] like Figures 1 to 4 As shown, the protective cover 1 further includes multiple fasteners 14, the connecting part 11 is provided with multiple connecting through holes (not shown in the figure), the charging pile 2 is provided with multiple connecting grooves corresponding to the connecting through holes (not shown in the figure), and the fasteners 14 pass through the connecting through holes and connect to the connecting grooves.

[0047] Specifically, multiple connection holes are spaced apart.

[0048] The connecting through hole is a circular through hole that penetrates the thickness of the connecting part 11, and its diameter forms a clearance fit with the outer diameter of the fastener 14; the connecting groove is a threaded hole opened on the surface of the charging pile 2, and the thread parameters match the thread at the end of the fastener 14. The fastener 14 can be a stainless steel screw.

[0049] Specifically, the correspondence between the connecting through holes and the connecting groove is axially aligned during the installation stage using a positioning fixture. The head of the fastener 14 is confined to the outside of the connecting through hole, and its threaded end is screwed into the connecting groove to generate axial clamping force. The contact surface between the connecting part 11 and the charging pile 2 is doubly fixed by the combined action of the adhesive and the fastener 14. The adhesive fills the microscopic gaps in the contact surface to achieve a seal, and the mechanical pressure generated by the fastener 14 inhibits the creep of the adhesive layer. The discrete fixing points formed by multiple connecting through holes ensure that the edge of the connecting part 11 is evenly stressed, avoiding local stress concentration that could lead to deformation of the elastic material. When the fastener 14 passes through the connecting through hole and locks into the connecting groove of the charging pile 2, the spaced connecting through holes ensure that the fastening force is evenly transmitted to the area covered by the adhesive, preventing the adhesive layer from peeling due to uneven stress.

[0050] The protective cover 1 is secured using a connection structure formed by multiple fasteners 14 and connecting through holes and grooves, making it difficult for the cover to loosen or fall off and ensuring long-term good protection. This connection method also facilitates disassembly and reinstallation, making maintenance and replacement easier. Furthermore, by adjusting the tightness of the fasteners 14, the fit between the protective cover 1 and the charging pile 2 can be flexibly adjusted, further enhancing the protective effect.

[0051] Furthermore, the multiple spaced-apart connecting holes can disperse connection stress and reduce local stress concentration, thereby extending the service life of the protective cover 1. At the same time, the spaced-apart connecting holes also facilitate installation and disassembly, improving maintenance efficiency. In addition, by rationally arranging the positions of the connecting holes, the overall structure of the protective cover 1 can be optimized, improving its protective performance.

[0052] In one alternative embodiment, a magnetic attractor (not shown in the figure) is provided on the side of the connecting part 11 facing the charging pile 2, and the connecting part 11 is detachably connected to the charging pile 2 through the magnetic attractor.

[0053] The magnetic attractor is a permanent magnet or electromagnet assembly, which is embedded in the inner surface of the connecting part 11 and forms an attraction force with the metal structure around the mounting hole 212 of the charging pile 2. The magnetic attractor is evenly distributed around the circumference of the connecting part 11, and an annular sealing ring is provided on the contact surface between the connecting part 11 and the charging pile 2.

[0054] Specifically, the magnetic field generated by the magnetic attractor penetrates the material of the connecting part 11 and forms a closed magnetic circuit with the metal shell of the charging pile 2. When the connecting part 11 approaches the mounting hole 212 of the charging pile 2, the magnetic attraction overcomes the deformation stress of the elastic material to achieve automatic adsorption and positioning. During maintenance, applying an external force perpendicular to the adsorption surface is sufficient to separate the connecting part 11 from the charging pile 2 without damaging the adhesive layer or removing the screws. The sealing ring undergoes elastic compression under the action of the magnetic attraction, forming a double sealing interface: the first sealing interface is formed by the direct contact between the magnetic attractor and the metal surface of the charging pile 2, and the second sealing interface is formed by the compressed sealing ring filling the gap between the connecting part 11 and the mounting hole 212.

[0055] The magnetic connection requires no additional tools and is simple and quick to operate. Simultaneously, the magnetic connection ensures a tight seal between the protective cover 1 and the charging pile 2, effectively preventing dust and moisture from entering the charging pile 2. Furthermore, the magnetic connection has a degree of self-adaptability, able to accommodate minor deformations or unevenness on the surface of the charging pile 2, improving the reliability and stability of the connection.

[0056] Specifically, both the connecting part 11 and the protective part 12 are made of silicone.

[0057] Silicone material possesses excellent elasticity and sealing properties, enabling it to adapt to various environmental conditions. During manufacturing, injection molding can be used to integrally form the connecting part 11 and the protective part 12. The thickness of the connecting part 11 and the protective part 12 can be adjusted according to actual needs to achieve optimal protective performance.

[0058] The use of silicone material gives the protective cover 1 excellent weather resistance and anti-aging properties, extending its service life. At the same time, the elasticity of silicone allows the protective cover 1 to adapt to mounting holes 212 of different sizes, improving its versatility and applicability. Furthermore, silicone material also has good insulation properties, further enhancing the safety of the charging pile 2.

[0059] See Figures 1 to 4 The present invention also provides a charging pile 2, including a charging pile cabinet 21 and the aforementioned protective cover 1. The charging pile cabinet 21 has an installation hole 212, and the protective cover 1 is installed on the charging pile cabinet 21 through a connecting part 11, and the protective cover 1 covers the installation hole 212.

[0060] Specifically, the installation process of the protective cover 1 is divided into two stages: First, the connecting part 11 is bonded to the edge of the mounting hole 212 of the charging pile cabinet 21 using adhesive. Then, screws are used to mechanically reinforce the connection through hole and the connecting groove. The cable hole 121 is initially in an expanded state, with the hole diameter reaching its maximum value to facilitate the insertion of cables by the customer. After the wiring is completed, the cable hole 121 is tightened by wire ties to enter a contracted state, forming an irreversible tight seal. The elasticity of the silicone material allows the cable hole 121 to tightly wrap around the cable surface when contracted. The dual fixing method of adhesive and screws ensures that there is no gap between the connecting part 11 and the cabinet, thereby achieving the effects of sand and dust barrier and waterproofing.

[0061] In a preferred embodiment, a circular mounting hole 212 is provided on the side of the charging pile cabinet 21, and an annular groove is provided on the edge of the mounting hole 212. The protective cover 1 is made of one-piece molded silicone material and includes a disc-shaped connecting part 11 and a hemispherical protective part 12. The outer diameter of the connecting part 11 matches the inner diameter of the mounting hole 212, and its bottom surface is coated with a 3M-5925 double-sided adhesive layer, which is bonded to the cabinet surface around the mounting hole 212 by pressing. A cross-shaped cable hole 121 is provided at the center of the top of the protective part 12, and a nylon cable tie is integrated at the edge of the hole. The end of the cable tie is provided with a one-way locking toothed rack. During installation, the cable is passed into the cabinet through the cable hole 121. After the wiring is completed, the operator tightens the cable tie so that the cable hole 121 tightly wraps the outer wall of the cable, and cuts off the excess cable tie to complete the seal.

[0062] Through the above technical solution, this application achieves fully enclosed mechanical protection for the charging pile's second inlet hole, solving the problems of poor construction consistency and maintenance difficulties associated with traditional fireproof sealant sealing. The elastic properties of the silicone material allow the cable hole 121 to adapt to cables of different diameters, and the one-way locking structure of the cable tie ensures an irreversible seal. The adhesive fit between the connector 11 and the cabinet prevents external liquid penetration, and the cross-shaped cable hole 121 is designed to maintain maximum opening when not locked, facilitating cable insertion. This structure significantly reduces on-site installation complexity and material costs while ensuring reliable protection.

[0063] The above description is merely a preferred embodiment of the present utility model, and the specific embodiments described above are not intended to limit the present utility model. Various modifications and variations can be made within the scope of the technical concept of the present utility model. All refinements, modifications, or equivalent substitutions made by those skilled in the art based on the above description are within the scope of protection of the present utility model.

Claims

1. A protective cover for a charging pile, wherein the charging pile has mounting holes, characterized in that, It includes a connecting part and a protective part made of elastic material, the connecting part and the protective part are connected to each other, the protective part has a thread hole, and the edge of the thread hole is provided with an adjusting member for controlling the diameter of the thread hole; The protective cover is installed on the charging pile via the connecting part, and the protective cover covers the mounting hole.

2. The protective cover according to claim 1, characterized in that, The diameter of the connecting part is larger than the diameter of the mounting hole.

3. The protective cover according to claim 2, characterized in that, An adhesive component is provided on the side of the connecting part facing the charging pile, and the connecting part is bonded to the charging pile through the adhesive component.

4. The protective cover according to claim 3, characterized in that, The protective cover also includes multiple fasteners, the connecting part has multiple connecting through holes, the charging pile has multiple connecting slots corresponding to the connecting through holes, and the fasteners pass through the connecting through holes and connect to the connecting slots.

5. The protective cover according to claim 4, characterized in that, The plurality of connecting through holes are spaced apart.

6. The protective cover according to claim 2, characterized in that, A magnetic suction element is provided on the side of the connecting part facing the charging pile, and the connecting part is detachably connected to the charging pile through the magnetic suction element.

7. The protective cover according to any one of claims 1 to 6, characterized in that, Both the connecting part and the protective part are made of silicone.

8. A charging pile, characterized in that, The device includes a charging pile cabinet and a protective cover as described in any one of claims 1 to 7. The charging pile cabinet has an installation hole, and the protective cover is installed on the charging pile cabinet through the connecting part, and the protective cover covers the installation hole.

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