An electric vehicle charging base

By introducing a spring shaft drive baffle, a rotating interface, and a locking device into the electric vehicle charging base, the problem of loose plugs in traditional charging bases is solved, achieving a stable charging connection and safe power transmission, thus improving the reliability and safety of electric vehicle charging.

CN224318792UActive Publication Date: 2026-06-02SHANGHAI CHENFAN INTELLIGENT TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI CHENFAN INTELLIGENT TECHNOLOGY CO LTD
Filing Date
2025-05-16
Publication Date
2026-06-02

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  • Figure CN224318792U_ABST
    Figure CN224318792U_ABST
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Abstract

This utility model discloses an electric vehicle charging stand, including a main body, a connecting plate mounted on the main body, a screw hole on the connecting plate, a spring shaft mounted above the screw hole, a baffle mounted on the spring shaft, a power transmission line mounted behind the baffle, a rotating interface mounted in front of the power transmission line, a conductive plate mounted in front of the rotating interface, a conductive post mounted in front of the conductive plate, an anti-collision shell mounted in front of the conductive post, and a locking device mounted below the anti-collision shell. This electric vehicle charging stand features a low-elasticity spring baffle that opens and closes easily, preventing dust and protecting the internal structure. The power transmission line is connected to the main body via the rotating interface, achieving stable bidirectional power transmission through the conductive plate. The anti-collision shell has external insulation and a precise internal opening, balancing safety and stable charging. The locking device, consisting of an opening button and a top post, is simple to operate, securely fixing the charging interface and preventing charging interruptions and safety hazards.
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Description

Technical Field

[0001] This utility model relates to the field of electric vehicle socket technology, specifically an electric vehicle charging base. Background Technology

[0002] Currently, electric vehicle charging generally uses a plug-and-socket connection to establish a stable power transmission circuit to replenish the vehicle's battery. However, traditional electric vehicle charging interfaces mostly use a simple plug-and-play design. This basic structure relies solely on the mechanical friction between the plug and the interface to maintain the connection, lacking both physical locking devices and electrical interlocking mechanisms. When an electric vehicle shakes due to uneven ground, experiences an accidental collision, or the charging cable is pulled by external force while parked, the connection between the plug and socket is easily loosened or even detached. Actual usage data shows that charging interruptions due to plug detachment account for more than 35% of daily charging scenarios. More alarmingly, the electric arc sparks generated by a sudden power outage, in high-temperature, humid environments, could potentially ignite nearby flammable materials, posing a fire risk. Furthermore, frequent plug detachment not only affects charging efficiency but also accelerates the oxidation and wear of the interface's metal contacts, shortening the lifespan of the charging equipment and increasing user costs and safety hazards. Utility Model Content

[0003] The purpose of this invention is to provide an electric vehicle charging dock to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an electric vehicle charging base, comprising a main body, a connecting plate mounted on the main body, a screw hole provided on the connecting plate, a spring shaft mounted above the screw hole, a baffle mounted on the spring shaft, a power transmission line mounted behind the baffle, a rotating interface mounted in front of the power transmission line, a conductive plate mounted in front of the rotating interface, a conductive post mounted in front of the conductive plate, an anti-collision shell mounted in front of the conductive post, and a locking device mounted below the anti-collision shell.

[0005] Preferably, the spring shaft is equipped with a low-elasticity spring, which can easily lift the baffle during use and pull the baffle back to its original position when the external force disappears.

[0006] Preferably, the power transmission line is connected to the main body via a rotary interface, and power can be transmitted to the conductive post via a conductive plate connected to the rear end of the rotary interface. Alternatively, power can be transmitted from the conductive post to the power transmission line connected to the rotary interface via the conductive plate.

[0007] Preferably, the conductive post is equipped with an anti-touch shell, the outer side of which is made of an insulating plate to effectively isolate the power supply. The inner side of the socket is provided with an opening to allow the conductive post to be exposed. The size of the slot that fits the conductive post is only large enough to accommodate the conductive post.

[0008] Preferably, the locking device includes an open button, a top post is installed on the left side of the open button, a side sliding baffle is installed on the left side of the top post, and a fixing post is installed on the left side of the side sliding baffle.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] 1. This electric vehicle charging base features a low-elasticity spring-driven baffle that opens and closes easily, protecting against dust and foreign objects while safeguarding the internal structure. The power transmission line connects to the main body via a rotating interface, working in conjunction with a conductive plate to achieve stable bidirectional power transmission, adapting to various power needs. The protective shell is insulated on the outside and precisely opened on the inside, preventing electric shock and ensuring stable charging contact. The locking device, consisting of an opening button and a top post, is easy to operate, securely fixing the charging interface and preventing charging interruptions and safety hazards caused by shaking. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is an exploded view of the structure of this utility model.

[0013] Figure 3 This is a cross-sectional view of the structure of this utility model.

[0014] In the diagram: 1. Main body; 2. Connecting plate; 3. Screw hole; 4. Spring shaft; 5. Baffle; 6. Power transmission line; 7. Rotary interface; 8. Conductive plate; 9. Conductive column; 10. Anti-collision shell; 11. Locking device; 12. Open button; 13. Top column; 14. Side sliding baffle; 15. Fixing column. Detailed Implementation

[0015] 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.

[0016] Example: Please refer to Figure 1This utility model provides a technical solution: an electric vehicle charging base, including a main body 1, a connecting plate 2 installed on the main body 1, a screw hole 3 provided on the connecting plate 2, a spring shaft 4 installed above the screw hole 3, a baffle 5 installed on the spring shaft 4, a power transmission line 6 installed behind the baffle 5, a rotating interface 7 installed in front of the power transmission line 6, a conductive plate 8 installed in front of the rotating interface 7, a conductive post 9 installed in front of the conductive plate 8, an anti-collision shell 10 installed in front of the conductive post 9, and a locking device 11 installed below the anti-collision shell 10.

[0017] The spring shaft 4 is equipped with a low-elasticity spring, which can easily lift the baffle 5 during use, and can also pull the baffle 5 back to its original position when the external force disappears.

[0018] In this embodiment, when charging, the user only needs to apply a small amount of force to lift the baffle, making the operation effortless. After charging is completed, the external force disappears, and the spring automatically pulls the baffle back to its original position. This not only prevents dust and foreign objects from falling into the charging interface, but also avoids exposed conductive parts, effectively protecting the internal structure of the charging base, extending its service life, and making the charging operation more worry-free.

[0019] The power transmission line 6 is connected to the main body 1 via a rotating interface 7. Power can be transmitted to the conductive post 9 via a conductive plate 8 connected to the rear end of the rotating interface 7. Alternatively, power can be transmitted from the conductive post 9 to the power transmission line 6 connected to the rotating interface 7 via the conductive plate 9.

[0020] In this embodiment, the power transmission line is connected to the main body via a rotating interface. This unique connection method is not only stable but also gives the charging dock flexible usage characteristics. The rotating interface, together with the conductive plate at the rear, constructs an efficient power transmission channel. Whether transmitting power from the charging dock to the electric vehicle or transmitting power in the reverse direction, stable and efficient power conduction can be achieved, ensuring a safe and reliable charging process and meeting the diverse power needs of users.

[0021] The conductive post 9 is equipped with an anti-contact housing 10, which is made of an insulating plate on the outside to effectively isolate the power supply. The inside of the socket is provided with an opening to allow the conductive post 9 to be exposed. The size of the slot that fits the conductive post is only large enough to accommodate the conductive post.

[0022] In this embodiment, a high-quality insulating board is used on the outside, which has excellent insulation performance and can effectively isolate the power supply, eliminating the risk of accidental electric shock to users from the root. The inner side of the anti-slip shell socket has a precisely designed opening that only allows the conductive post to be exposed. The size of the slot that fits the conductive post has been precisely calculated to accommodate the conductive post. This ensures that the electric vehicle charging interface fits tightly with the conductive post and charges stably, while also preventing other foreign objects from being inserted and causing short circuits, leakage and other safety hazards, thus comprehensively protecting the user's charging safety.

[0023] The locking device 11 includes an opening button 12, a top post 13 is installed on the left side of the opening button 12, a side sliding baffle 14 is installed on the left side of the top post 13, and a fixing post 15 is installed on the left side of the side sliding baffle 14.

[0024] In this embodiment, the locking system, consisting of an open button, a top column, a side sliding baffle, and a fixing column, is simple to operate and highly reliable. Pressing the open button pushes the side sliding baffle, unlocking the charging port for easy connection to the electric vehicle. During charging, the side sliding baffle and the fixing column work together to firmly secure the electric vehicle's charging port. Even in the event of accidental vehicle shaking or collision, the charging connection remains stable, preventing charging interruptions or electrical sparks due to poor contact, further enhancing the safety and stability of the charging process.

[0025] Working Principle: In actual operation, the user first needs to lift the baffle 5 upwards to open the protective barrier of the charging interface. At this time, the charging interface is in a fully open state, facilitating smooth insertion of the plug. When the connecting device slowly approaches the charging interface, the side sliding baffle 14 will contact the inclined plate structure above the interface. Under the guidance of the inclined plate, the two side baffles slide and retract to the left and right, making room for the plug insertion. Once the plug is accurately inserted, the side sliding baffle 14, with its built-in elastic reset mechanism, quickly returns to its original position, forming a tight enclosure and lock, physically preventing the risk of detachment caused by external shaking or cable pulling.

[0026] Once the plug is securely connected, the power transmission process begins. A stable electrical connection channel is established through the power transmission line 6, which tightly engages with the main body 1 via the rotating interface 7. Power travels along the transmission line 6, reaches the conductive plate 8, undergoes precise circuit distribution and safety testing, and is then output in an orderly manner through the conductive post 9, continuously supplying energy to the electric vehicle battery.

[0027] Once the battery is fully charged, the user simply presses the open button 12 below the charging port to trigger the internal mechanical transmission mechanism. Upon pressure, the top post 13 quickly moves inward, abutting against the trigger point of the side sliding baffle 14. Under the pushing force of the top post 13, the previously locked side sliding baffle 14 slides open again, completely releasing the connection device. The user can then easily and safely unplug the connector, completing the entire charging process.

[0028] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] 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. An electric vehicle charging station comprising a main body (1), characterized in that: A connecting plate (2) is installed on the main body (1). A screw hole (3) is provided on the connecting plate (2). A spring shaft (4) is installed above the screw hole (3). A baffle (5) is installed on the spring shaft (4). A power transmission line (6) is installed behind the baffle (5). A rotating interface (7) is installed in front of the power transmission line (6). A conductive plate (8) is installed in front of the rotating interface (7). A conductive post (9) is installed in front of the conductive plate (8).

2. The electric vehicle charging dock according to claim 1, characterized in that: The spring shaft (4) is equipped with a low-elasticity spring inside.

3. The electric vehicle charging dock according to claim 1, characterized in that: The power transmission line (6) is connected to the main body (1) through a rotating interface (7), and the power can be transmitted to the conductive column (9) through the conductive plate (8) connected to the rear end of the rotating interface (7).

4. The electric vehicle charging dock according to claim 1, characterized in that: A protective shell (10) is installed in front of the conductive post (9), and a locking device (11) is installed below the protective shell (10).

5. The electric vehicle charging dock according to claim 4, characterized in that: The locking device (11) includes an opening button (12), a top post (13) is installed on the left side of the opening button (12), a side sliding baffle (14) is installed on the left side of the top post (13), and a fixing post (15) is installed on the left side of the side sliding baffle (14).

6. The electric vehicle charging dock according to claim 1, characterized in that: The conductive post (9) is equipped with a protective shell (10), and its outer side is made of an insulating plate.