Charging connection device and charging equipment

Abstract

This application provides a charging connection device and a charging pile for inserting a charging gun. The device includes a connection body with a socket for inserting the charging gun. A protective cover is provided on the socket, rotatably connected to the socket and passing through the connection device. A linkage element for moving the protective cover is also provided on one side of the socket on the connection body. This allows the protective cover to be held in an open, closed, or pre-open state. By incorporating the linkage element, the user only needs one hand to place or remove the charging gun, improving user convenience and making operation smoother. When the protective cover is not fully open, it effectively prevents injury from sudden drops. The pre-open state allows the protective cover to remain suspended, also preventing accidental drops.

Description

Technical Field

[0001] This application relates to the field of charging connection device technology, specifically to charging connection devices and charging piles. Prior Technology

[0002] In current charging station products, the charging gun is typically inserted into the charging station's interface. To protect it from sun, rain, and environmental dust, a protective cover is usually installed on the interface. However, the existing protective cover structure means that users usually need to hold the charging gun with one hand and operate the protective cover with the other when placing or removing the charging gun, which is very inconvenient. Furthermore, when opening the protective cover, it may suddenly fall due to its own weight, causing accidental injury. Summary of the Invention

[0003] To address the shortcomings of the existing technology, it is necessary to provide a charging connection device. Furthermore, it is also necessary to provide a charging pile using this charging connection device.

[0004] This application provides a charging connection device for inserting a charging gun. The charging connection device includes a connection device body with a socket for inserting the charging gun. A protective cover is provided on the socket, and the protective cover is rotatably connected to the socket via a rotating shaft. A linkage element connected to the rotating shaft is also provided on one side of the connection device body. The linkage element is configured to drive the rotating shaft to rotate in a first direction to switch the protective cover from a closed state to a pre-open state and an open state. The linkage element includes a connecting plate, a torsion spring, and a tension spring. The connecting plate is fixed to the rotating shaft. The connecting plate includes a first end and a second end. Along the first direction, the first end is located at the front end of the second end. The torsion spring is sleeved on the rotating shaft and includes a first arm and a second arm connected together. The first arm is fixed to the connection device body, and the second arm abuts against the first end in the closed state. The tension spring includes a third end and a fourth end. The third end is fixed to the connection device body, and the fourth end is fixed to the second end. When the protective cover is closed, the tension spring provides a rotational force to the second end in a second direction opposite to the first direction, and the torsion spring provides a rotational force to the first end in the first direction. The rotational force in the second direction is greater than the rotational force in the first direction to keep the protective cover closed. When the protective cover is pre-opened, the tension spring provides a rotational force to the second end in the second direction, and the torsion spring provides a rotational force to the first end in the first direction. The rotational forces in the second and first directions cancel each other out to keep the protective cover pre-open. When the protective cover is open, the tension spring provides a rotational force to the second end in the first direction to keep the protective cover open.

[0005] In some embodiments of this application, the connecting plate includes a first plate and a second plate fixed to each other. An angle is formed between the first plate and the second plate. The angle is less than or equal to 90 degrees. The first end is the end of the first plate facing away from the second plate. The second end is the end of the second plate facing away from the first plate. The connection between the first plate and the second plate is fixed to a rotating shaft. When the protective cover is in a closed state and a pre-opened state, the second arm provides a spring force for the first plate to rotate in a first direction.

[0006] In some embodiments of this application, the first plate is provided with a retaining groove. The retaining groove is configured to accommodate at least a portion of the second arm and abut against the second arm.

[0007] In some embodiments of this application, the second plate is provided with a connecting portion. The connecting portion is configured to connect to the fourth end.

[0008] In some embodiments of this application, a limit post is also provided on the connecting device body, and the limit post is configured to prevent the second arm from continuing to rotate when the protective cover is in the open state.

[0009] In some embodiments of this application, a fixing post is also provided on the main body of the connecting device, and the third end is rotatably connected to the fixing post. When the protective cover is in the closed state, the fixing post, the rotating shaft and the connecting part are not collinear, so that the elastic force of the connecting plate rotating in the second direction is greater than the elastic force of the first direction.

[0010] In some embodiments of this application, a baffle is also provided on the other side of the connecting device body opposite to the linkage element. The connecting device body is also provided with a limiting groove. The baffle is configured to abut against the limiting groove to prevent the protective cover from continuing to rotate when the protective cover is in the open state.

[0011] In some embodiments of this application, the connecting device body is further provided with a locking tongue. The locking tongue is configured to abut against and limit the baffle when the protective cover is in the closed state. The locking tongue is also configured to retract away from the baffle when the protective cover is in the pre-open state, so as to allow the baffle to rotate.

[0012] In some embodiments of this application, the connecting device body has a top wall and two side walls connected to both ends of the top wall. The top wall and the two side walls enclose a receiving space forming a communicating socket, the receiving space being configured to accommodate at least part of the charging gun; the linkage element is fixed to one side wall.

[0013] This application also provides a charging pile, including a charging gun and the aforementioned charging connection device. The charging gun is configured to be plugged into the socket of the charging connection device.

[0014] This application, by incorporating a linkage element, allows users to operate the charging gun with only one hand when placing or removing it, improving user convenience and making operation smoother. It eliminates the need to hold the charging gun with one hand while simultaneously handling the opening and closing of the protective cover with the other. When the protective cover is not fully open, this design effectively prevents injury from a sudden drop. The pre-opening function allows the protective cover to be suspended to a certain extent, preventing accidental drops and ensuring higher user safety during operation. When the protective cover is closed, the combination of a tension spring and a torsion spring ensures that the cover remains effectively closed, enhancing its protective capabilities and preventing dust, rainwater, and other external substances from entering the charging gun's connector, thereby extending the lifespan of the charging equipment. Simple Explanation of the Diagram

[0015] Figure 1 is a perspective view of a charging connection device according to an embodiment of this application.

[0016] Figure 2 is a side view of the charging connection device shown in Figure 1 in the locked state.

[0017] Figure 3 is a side view of the charging connection device shown in Figure 1 in its pre-open state.

[0018] Figure 4 is a side view of the opening and closing process of the charging connection device shown in Figure 1.

[0019] Figure 5 is a side view of the charging connection device shown in Figure 4 in its fully open state.

[0020] Figure 6 is an exploded view of the charging connection device shown in Figure 1.

[0021] Figure 7 is an exploded view of the charging connection device shown in Figure 6 from another perspective.

[0022] Figure 8 is a schematic diagram of a charging pile according to one embodiment of this application. Implementation

[0023] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0024] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. When a component is said to be "set on" another component, it can be directly set on the other component or there may be an intervening component.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0026] To further illustrate the technical means and effects adopted by this application in achieving its intended purpose, the following detailed description of this application is provided in conjunction with the accompanying drawings and preferred embodiments.

[0027] Please refer to Figures 1 to 5. This application embodiment provides a charging connection device 1 for inserting a charging gun 2. The charging connection device 1 includes a connection device body 10, which may have a top wall 101 and two side walls 102 connected to both ends of the top wall 101. The top wall 101 and the two side walls 102 enclose a receiving space. The connection device body 10 is also provided with a socket 11 for inserting the charging gun 2. The socket 11 communicates with the receiving space, so that at least a portion of the charging gun 2 is received within the receiving space. The socket 11 is provided with a protective cover 30, which is rotatably connected to the socket 11 by a rotating shaft 44, so that at least a portion of the socket 11 is covered or opened, and the rotating shaft 44 is fixed to the side wall 102 of the connection device body 10. Under the action of external force, when the protective cover 30 rotates around a first direction, the socket 11 is opened; when the protective cover 30 rotates around a second direction, the socket 11 is covered. For example, when viewed from the perspective of Figure 1, the first direction can be clockwise and the second direction can be counterclockwise. At least one side of the side wall 102 is also provided with a linkage element 40 connected to the protective cover 30 (such as the rotation shaft 44 of the protective cover 30). The linkage element 40 can be located on the inner wall or the outer wall of the side wall 102.

[0028] The linkage element 40 is configured to drive the rotating shaft 44 to rotate, thereby keeping the protective cover 30 in any of the following states: closed, pre-open, or open. The linkage element 40 includes a connecting plate 41, a torsion spring 42, and a tension spring 43. The connecting plate 41 is fixed to the rotating shaft 44. When the protective cover 30 rotates, the rotating shaft 44 drives the connecting plate 41 to rotate synchronously. The connecting plate 41 includes a first end 410 and a second end 411. When the protective cover 30 drives the connecting plate 41 to rotate clockwise, the first end 410 is located at the front end of the second end 411. The torsion spring 42 is sleeved on the rotating shaft 44 and located on the side of the connecting plate 41 facing the side wall 102. The torsion spring 42 includes a first arm 421 and a second arm 423 connected together. The first arm 421 is fixed to the side wall 102. When the protective cover 30 is in the closed state, the second arm 423 abuts against the first end 410. After the connecting plate 41 rotates clockwise by a certain angle, the position of the second arm 423 is restricted. The tension spring 43 includes a third end 431 and a fourth end 432. The third end 431 of the tension spring 43 is fixed to the side wall 102 of the connecting device body 10, and the fourth end 432 is fixed to the second end 411 of the connecting plate 41.

[0029] Please refer to Figure 2. When the protective cover 30 is in the closed state, the connecting plate 41 is in the initial state. The tension spring 43 provides a counterclockwise rotational force to the second end 411. The torsion spring 42 is in a compressed state and has compressive potential energy. Therefore, the second arm 423 of the torsion spring 42 provides a clockwise rotational force to the first end 410. The counterclockwise rotational force is greater than the clockwise rotational force to keep the protective cover 30 in the closed state. In some embodiments, the connecting plate 41 is generally L-shaped, including a first plate 4111 and a second plate 4112 fixed to each other. The first end 410 is the end of the first plate 4111 facing away from the second plate 4112, and the second end 411 is the end of the second plate 4112 facing away from the first plate 4111. There is an angle between the first plate 4111 and the second plate 4112. It can be seen in Figure 2 that there is an angle between the tension spring 43 and the second plate 4112. According to the force analysis, when the protective cover 30 is in the closed state, the second arm 423 of the torsion spring 42 provides a clockwise rotational elastic force to the first plate 4111, while the tension spring 43 provides a tension force FN to the second plate 4112. The direction of the tension force FN is the extension direction of the tension spring 43 itself. FN can be decomposed into two mutually perpendicular components F1 + F2. At this time, F2 and the reaction force of the second plate 4112 cancel each other out, and the angle between F2 and FN is θ1. The counterclockwise rotational component F1 provided by the tension spring 43 to the second plate 4112 is greater than the clockwise rotational elastic force provided by the torsion spring 42. Therefore, the connecting plate 41 is in a state of being tightened by the tension force F1, so that the protective cover 30 is locked in the closed state.

[0030] Please refer to Figure 3. When the protective cover 30 is in the pre-open state, the protective cover 30 causes the connecting plate 41 to rotate a certain angle relative to Figure 2 around the first direction. Since the torsion spring 42 is initially in a compressed state, as the connecting plate 41 rotates, the torsion spring 42 can recover a small portion of its elastic deformation, causing the second arm 423 to rotate along with the connecting plate 41. At this time, the tension spring 43 still provides a counterclockwise rotational force FN to the second plate 4112, and the torsion spring 42 still provides a clockwise rotational force to the first plate 4111. The counterclockwise rotational force and the clockwise rotational force cancel each other out to keep the protective cover 30 in the pre-open state. As can be seen from Figure 3, according to the force analysis, when the protective cover 30 is in the pre-open state, the angle θ1 between F1 and F2 provided by the tension spring 43 to the second plate 4112 decreases, resulting in a decrease in the component force F1. At this time, the component force exerted by the tension spring 43 on the second plate 4112 decreases. Simultaneously, the relative opening of the first arm 421 and the second arm 423 of the torsion spring 42 reduces the compressive potential energy. Therefore, the elastic force exerted by the torsion spring 42 on the first plate 4111 also decreases. According to the force analysis, the clockwise rotational elastic force provided by the torsion spring 42 to the first end 410 and the counterclockwise rotational elastic force provided by the tension spring 43 to the second end 411 cancel each other out, ensuring that the protective cover 30 is in the pre-open state and will not suddenly fall and cause accidental injury.

[0031] Please refer to Figures 2 to 5. In some embodiments of this application, the connecting device body 10 is further provided with a limit post 45 in the rotation direction of the second arm 423. The limit post 45 is configured to prevent the second arm 423 from continuing to rotate when the protective cover 30 is in the open state. The design of providing the limit post 45 enhances the control capability of the protective cover 30. When the protective cover 30 is in the open state, the limit post 45 can effectively limit the rotation amplitude of the second arm 423, thereby achieving more precise opening and closing control. This refined design can prevent component damage or operational errors caused by excessive rotation of the protective cover 30, providing a safer operating environment. In addition, the presence of the limit post 45 strengthens the structural stability of the protective cover 30, making it more resistant to external interference during use and reducing the risk of accidental opening or closing due to external impact. This mechanism also optimizes the user experience in actual use, making users feel more secure when using the charging connection device 1. In summary, the limit post 45 not only improves the safety of the device but also enhances the overall reliability and durability of the charging connection device 1, helping to reduce the failure rate.

[0032] Please refer to Figures 4 and 5 together. When the protective cover 30 is in the open state, it has rotated a certain angle relative to Figure 3 around the first direction. At this time, the tension spring 43 provides a clockwise rotational force to the second end 411 to keep the protective cover 30 in the open state. When the user operates from Figure 3 to the state shown in Figures 4 and 5, according to the force analysis, when the protective cover 30 is in the open state, the second arm 423 of the torsion spring 42 has been limited to the limiting post 45. At this time, the torsion spring 42 will no longer provide a clockwise rotational force to the first plate 4111. When the user operates from Figure 3 to the state shown in Figure 4, the angle between the tension spring 43 and the second plate 4112 gradually decreases to 0, and then regains an angle in the opposite direction. At this time, the tension spring 43 provides a clockwise rotational force to the second plate 4112. When the user operates the protective cover 30 to open or close it from Figure 4 to the fully open state in Figure 5, the tension spring 43 provides a clockwise rotational force to the second plate 4112.

[0033] This application, by incorporating a linkage element 40, allows users to operate the charging gun 2 with only one hand when placing or removing it, improving user convenience and making operation smoother. It eliminates the need to hold the charging gun 2 with one hand while simultaneously handling the opening and closing of the protective cover 30 with the other. When the protective cover 30 is not fully open, this design effectively prevents injury from a sudden drop. The pre-opening function allows the protective cover 30 to be suspended to a certain extent, preventing accidental drops and ensuring higher user safety during operation. When the protective cover 30 is closed, the combination of the tension spring 43 and the torsion spring 42 ensures that the protective cover 30 remains effectively closed, enhancing its protective capabilities and preventing dust, rainwater, and other external substances from entering the charging gun 2's socket 11, thereby extending the lifespan of the charging equipment.

[0034] By setting up a rotating shaft 44 and achieving a transmission connection between it and the linkage element 40, the protective cover 30 can easily switch between closed, pre-open, and open states. Users can flexibly adjust the state of the protective cover 30 as needed, simplifying the operation steps and avoiding safety hazards caused by improper operation of the protective cover 30. The design scheme of the rotating shaft 44 driven by the linkage element 40 ensures the movement stability of the protective cover 30. Users do not need to perform frequent and complicated manual adjustments in daily use, improving the user-friendliness and safety of the charging device and making it more suitable for use in various environments.

[0035] Referring to Figures 2 to 5, in some embodiments of this application, the included angle between the first plate 4111 and the second plate 4112 is less than or equal to 90°. The first plate 4111 and the second plate 4112 are fixed to each other. A torsion spring 42 is sleeved on the rotating shaft 44 and located between the connecting plate 41 and the connecting device body 10. The torsion spring 42 provides a clockwise rotational force for the first plate 4111. By designing the connecting plate 41 as two plates with an included angle, greater flexibility and stability can be provided. The structural design of the first plate 4111 and the second plate 4112 allows them to maintain a good power transmission chain during rotation, thereby making the protective cover 30 react more quickly when switching between different states. The torsion spring 42 provides the first plate 4111 with additional clockwise rotational force, ensuring that the protective cover 30 is secure when closed and has sufficient support force in the pre-opened state. This design makes the operation of the protective cover 30 smoother, reduces the possibility of dust or moisture entering the socket 11 due to failure to close properly, and also prevents the protective cover 30 from falling suddenly and causing unnecessary damage, further improving the protection performance of the charging device.

[0036] Referring to Figures 6 and 7, in some embodiments of this application, the torsion spring 42 further includes a center end 422, with a first arm 421 and a second arm 423 respectively connected to the center end 422. The center end 422 is sleeved on the rotating shaft 44, the second arm 423 extends from the center end 422 toward the length of the first plate 4111, and the first arm 421 extends from the center end 422 toward the length of the second plate 4112. When the protective cover 30 is in the closed or pre-open state, the second arm 423 provides a spring force for the first plate 4111 to rotate clockwise around the center end 422. This ensures that when the protective cover 30 is in the closed or pre-open state, the release of the spring force can effectively support the weight of the protective cover 30 and prevent it from closing accidentally. This design significantly improves the safety and reliability of the protective cover 30 during opening and closing operations and reduces inconvenience for users. At the same time, because the design emphasizes the flexibility of the spring force, users can adjust the state of the protective cover 30 as needed when using the device, thereby making the device more adaptable and providing a more user-friendly experience. Overall, the design provides a more efficient and safer way to use the protective cover 30, meeting the modern user's dual needs for convenience and security.

[0037] Referring to Figure 1, in some embodiments of this application, the first plate 4111 is provided with a retaining groove 4113, which is configured to accommodate the second arm 423. The second plate 4112 is provided with a connecting portion 4114, which is configured to connect with the fourth end 432. The retaining groove 4113 not only provides a stable support position for the second arm 423, but also makes the movement trajectory of the protective cover 30 clearer in different states. By placing the second arm 423 in the retaining groove 4113, the accidental movement of the protective cover 30 during use can be effectively prevented, especially in the working state or when subjected to external impact, ensuring its stability. At the same time, the design of the connecting portion 4114 and its connection with the fourth end 432 can realize effective force transmission between components, enhancing the compactness and shock resistance of the entire structure. In practical applications, this design improves the durability of the protective cover 30, reduces the need for frequent repairs or replacements, lowers maintenance costs, and extends the service life of the equipment. Furthermore, this structural optimization makes the fit between the retaining groove 4113 and the connecting part 4114 more precise, which helps to improve the reliability of the overall mechanism, thereby allowing users to experience greater safety and convenience during use.

[0038] Please refer to Figures 2 to 5. In some embodiments of this application, the connecting device body 10 is provided with a fixing post 46, and the third end 431 is rotatably connected to the fixing post 46. As shown in Figure 2, when the protective cover 30 is in the closed state, the fixing post 46, the rotating shaft 44, and the connecting part 4114 are not collinear, so that the elastic force of the connecting plate 41 rotating counterclockwise is greater than the elastic force of rotating clockwise. The design of setting the fixing post 46 effectively increases the stability of the protective cover 30, especially the tight connection in the closed state. By means of the non-collinear arrangement, when the protective cover 30 is closed, the position of the fixing post 46 makes the elastic force of the connecting plate 41 rotating counterclockwise greater than the elastic force of rotating clockwise, which ensures that the protective cover 30 is firmly fixed in the closed state and reduces the risk of accidental opening. This design not only improves the closure of the protective cover 30, but also enhances the safety of the overall structure, making users more at ease during operation. At the same time, this design simplifies the production structure, reduces the process difficulty, thereby helping to reduce production costs and improve the cost-effectiveness of the charging connection device 1. In addition, this mechanism effectively prevents wear and tear caused by repeated opening and closing, extends the service life of the protective cover 30, and provides a guarantee for long-term use by users.

[0039] Referring to Figures 6 and 7, in some embodiments of this application, a baffle 50 is also provided on the other side of the connecting device body 10 relative to the linkage element 40, and a limiting groove 12 is also provided on the connecting device body 10. The baffle 50 is configured to abut against the limiting groove 12 to limit the protective cover 30 when it is in the open state. The design of the baffle 50 and the limiting groove 12 significantly enhances the stability of the protective cover 30 in the open state. When the protective cover 30 is opened, the baffle 50 provides a physical restriction to prevent the protective cover 30 from being over-unfolded. This mechanism effectively prevents the protective cover 30 from moving excessively due to natural conditions or external forces, thereby avoiding potential damage or operational inconvenience and ensuring that the user can operate the charging gun 2 safely. The design of the limiting groove 12 not only provides stable support for the protective cover 30, but also greatly reduces the possibility of accidents, enhancing the safety of the charging device.

[0040] Referring to Figures 6 and 7, in some embodiments of this application, the connecting device body 10 is further provided with a locking tongue 13. The locking tongue 13 is configured to abut against and limit the baffle 50 when the protective cover 30 is in the closed state. When the protective cover 30 is in the pre-open state, it retracts away from the baffle 50, allowing the baffle 50 to rotate. The locking tongue 13 ensures that the protective cover 30 will not be accidentally opened when closed. By abutting against the baffle 50, the locking tongue 13 maintains the stability and airtightness of the protective cover 30, thereby helping to prevent the intrusion of external substances such as dust and moisture, extending the service life of the charging device, and improving the safety of the charging device, avoiding accidental injury that may be caused by user misoperation. When the protective cover 30 is in the pre-open state, the locking tongue 13 retracts to a position away from the baffle 50, effectively releasing the limitation on the baffle 50, thus facilitating quick and convenient operation by the user. It is easy to manufacture and maintain, reduces overall costs, and improves the market adaptability and competitive advantage of the charging connecting device 1.

[0041] As shown in Figure 8, this application embodiment also provides a charging pile 100, including a charging gun 2 and the aforementioned charging connection device 1. The charging connection device 1, through the flexible design of its protective cover 30, significantly improves the usability and safety of the charging pile 100. Due to the configuration of the protective cover 30 and various limiting devices, users reduce complex operating steps during charging, avoiding potential injury and equipment damage.

[0042] The above embodiments are merely illustrative of this application, and should not be limited to these embodiments in actual applications. Other modifications and alterations made by those skilled in the art based on the technical concept of this application should fall within the scope of this patent application.

[0043] 1: Charging connection device 10: Connecting device body 101: Top Wall 102: Sidewall 2: Charging gun 30: Protective cover 11: Socket 40: Linkage components 41: Connecting plate 410: First end 411: Second end 42: Torsion Spring 43: Tension Spring 431: Third end 432: Fourth End 44: Rotation shaft 4111: First board 4112: Second board 421: First Arm 422: Central End 423: Second Arm 4113: Retaining groove 4114: Connecting part 45: Limiting post 46: Fixed Column 50: baffle 12: Limiting groove 13: Locking tongue 100: Charging Station

Claims

1. A charging connection device for inserting a charging gun, wherein the improvement is that the charging connection device includes a connection device body, the connection device body is provided with a socket for inserting the charging gun, the socket is provided with a protective cover, the protective cover is rotatably connected to the socket via a rotating shaft, and a linkage element connected to the rotating shaft is further provided on one side of the connection device body, the linkage element being configured to drive the rotating shaft to rotate in a first direction to switch the protective cover from a closed state to a pre-open state and an open state; the linkage element includes: A connecting plate, fixed to the rotating shaft, comprising a first end and a second end, wherein the first end is located at the front end of the second end along the first direction; a torsion spring, sleeved on the rotating shaft, comprising a first arm and a second arm connected together, the first arm being fixed to the connecting device body, and the second arm abutting against the first end in the closed state; a tension spring, comprising a third end and a fourth end, the third end being fixed to the connecting device body, and the fourth end being fixed to the second end; wherein, when the protective cover is in the closed state, the tension spring provides a spring force to the second end for rotation in a second direction opposite to the first direction, and the torsion spring provides a spring force to the first end for rotation in the first direction, the spring force for rotation in the second direction being greater than the spring force for rotation in the first direction to keep the protective cover in the closed state; When the protective cover is in the pre-open state, the tension spring provides a rotational force to the second end in the second direction, and the torsion spring provides a rotational force to the first end in the first direction. The rotational force in the second direction and the rotational force in the first direction cancel each other out to keep the protective cover in the pre-open state. When the protective cover is in the open state, the tension spring provides a rotational force to the second end in the first direction to keep the protective cover in the open state.

2. The charging connection device as described in claim 1, wherein, The connecting plate includes a first plate and a second plate fixed to each other, with an included angle between the first plate and the second plate, the included angle being less than or equal to 90 degrees. The first end is the end of the first plate away from the second plate, and the second end is the end of the second plate away from the first plate. The connection between the first plate and the second plate is fixed to the rotating shaft. When the protective cover is in the closed state and the pre-open state, the second arm is used to provide the first plate with a spring force to rotate along the first direction.

3. The charging connection device as described in claim 2, wherein, The first plate is provided with a retaining groove, which is configured to accommodate at least a portion of the second arm and abut against the second arm.

4. The charging connection device as described in claim 2, wherein, The second plate is provided with a connecting part, which is configured to connect to the fourth end.

5. The charging connection device as described in claim 1, wherein, The connecting device body is also provided with a limit post, which is configured to prevent the second arm from continuing to rotate when the protective cover is in the open state.

6. The charging connection device as described in claim 4, wherein, The connecting device body is also provided with a fixing post, and the third end is rotatably connected to the fixing post. When the protective cover is in the closed state, the fixing post, the rotating shaft and the connecting part are not collinear, so that the elastic force of the connecting plate rotating in the second direction is greater than the elastic force of the first direction.

7. The charging connection device as described in claim 1, wherein, A baffle is provided on the other side of the connecting device body opposite to the linkage element. The connecting device body is also provided with a limiting groove. The baffle is configured to abut against the limiting groove to prevent the protective cover from continuing to rotate when the protective cover is in the open state.

8. The charging connection device as described in claim 7, wherein, The connecting device body is also provided with a locking tongue, which is configured to abut against and limit the baffle when the protective cover is in the closed state. The locking tongue is also configured to retract away from the baffle when the protective cover is in the pre-open state, so as to make the baffle rotate.

9. The charging connection device as described in claim 1, wherein, The connecting device body has a top wall and two side walls connected to both ends of the top wall. The top wall and the two side walls enclose a receiving space that communicates with the socket. The receiving space is configured to accommodate at least part of the charging gun. The linkage element is fixed to one of the side walls.

10. A charging station, improved in that it includes a charging gun and a charging connection device as described in any one of claims 1 to 9, the charging gun being configured to be plugged into the socket of the charging connection device.

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