Automatic closing dual-mode locking charging port dustproof cover structure and charging equipment

Abstract

The invention provides an automatic closing dual-mode locking charging port dustproof cover structure and charging equipment. The automatic closing dual-mode locking charging port dustproof cover structure comprises a fixed base; the cover body is rotationally connected to the fixed base and is switched among a closing position, a first opening position and a second opening position; the elastic driving unit continuously applies acting force towards the closing position to the cover body; the locking structure comprises a locking trigger arranged on the fixed base; a first locking part; an elastic maintaining unit which enables the lock trigger to maintain the first lock position; a holding structure; when the locking trigger is located at the first locking position, the first locking part is clamped with the cover body so as to fix the cover body at the first opening position; when the locking trigger is switched to a second balance position under the action of external force, the first locking part is separated from the cover body, and the cover body rotates towards a second opening position; the holding structure is directly triggered to abut against the cover body, so that the cover body is kept at the second opening position. The problems that a traditional charging port protection structure is tedious in operation and lacks automatic reset and multi-gear stable locking functions linked with the charging action are solved.

Description

Technical Field

[0001] This invention relates to the field of electrical technology, specifically to a charging port dust cover structure with automatic closing dual-mode locking and a charging device. Background Technology

[0002] In the electric vehicle industry, the charging port is a crucial interface for energy replenishment, and its protective performance directly affects the safety of the charging process and the lifespan of the equipment. To prevent rainwater, dust, and other impurities from entering the charging port and causing short circuits or poor contact, the mainstream protection solution currently uses a dust cover structure that fits tightly with the charging port, allowing for manual installation and removal to open and close the port. However, this traditional protective structure has several limitations in practical applications: First, it is not very convenient to operate. To ensure waterproof and dustproof effects, the dust cover and the charging port are usually designed with an interference fit, requiring significant external force for installation and removal, which poses a significant operational obstacle for users with less strength. Second, it requires high alignment accuracy. During the fastening process, the mating positions of the dust cover and the charging port must be precisely aligned; even slight deviations can prevent successful installation, especially in inclement weather or low-light conditions, easily delaying charging operations. If it is a hinged flip-top structure, the cover needs to be held to keep the charging port open, and the dust cover must be manually closed after charging. If the user neglects to fully close it, it can create a safety hazard. Summary of the Invention The problem this invention aims to solve is that traditional charging port protection structures are cumbersome to operate and lack automated reset and multi-level stable locking functions that are linked to charging actions.

[0003] The technical solution adopted by the present invention to solve the above problems is as follows: a charging port dust cover structure with automatic closing dual-mode locking includes: Fixed base; The cover is connected to the fixed base via a rotating hinge structure, and can switch between a closed position, a first open position, and a second open position. The elastic drive unit continuously applies a force toward the closed position to the cover; The locking structure includes: A locking trigger that can be rotatably mounted on a fixed base; The first locking part is located in the locking trigger; The resilient holding unit forces the lock-up trigger to remain in the first locked position; Maintain the structure; When the locking trigger is in the first locked position, the first locking part engages with the cover to fix it in the first open position. When the latch-up trigger is switched to the second equilibrium position by an external force: The first locking part disengages from the cover, and the elastic drive unit drives the cover to rotate to the second open position; The movement of the locking trigger directly triggers the retaining structure to abut the cover, generating a reverse balancing torque that keeps the cover in the second open position.

[0004] The cover can be adaptively switched between the closed position, the first open position, and the second open position through the linkage design of the rotary hinge structure, the elastic drive unit, and the locking structure; when manually opened from the closed position to the first open position (100°~120°), the locking trigger is in the first locked position, and the first locking part engages the cover to fix it in the first open position. When the locking trigger is subjected to an external force (such as the insertion of a charging gun), the locking trigger rotates and switches to the second equilibrium position, causing the first locking part to disengage from the cover and automatically release the first locking position. The elastic drive unit drives the cover to rotate to the second open position. The movement of the locking trigger directly triggers the holding structure to abut against the cover, generating a reverse balancing torque, which keeps the cover in the second open position.

[0005] After the external force disappears (the charging gun is pulled out), the movement of the locking trigger directly triggers the contact between the holding structure and the cover. The elastic holding unit drives the locking trigger to reset, and the cover automatically closes under the action of the elastic driving unit. This solves the problem of the existing technology being unable to link the automatic reset and multi-level stable locking function with the charging action, and it is also easy to operate.

[0006] Furthermore, the locking structure also includes a trigger arm, which is connected to a locking trigger and has its free end exposed; When the trigger arm is pressed, it drives the locking trigger to switch from the first locked position to the second balanced position.

[0007] An exposed trigger arm is connected to the locking trigger, with its free end extending into the charging cavity. This allows external force to drive the locking trigger to switch from the first locked position to the second balanced position. By setting an exposed trigger arm (with its free end extending into the charging cavity) connected to the locking trigger, when the charging gun is inserted, it naturally presses against the trigger arm, directly driving the locking trigger to switch from the first locked position to the second balanced position. This eliminates the need for additional manual operation, simplifying the process and solving the problem of "cumbersome operation." Simultaneously, this switching process is directly linked to the insertion of the charging gun, achieving automated coordination between gear switching and charging action, solving the problem of "lack of linkage with charging action." Furthermore, the trigger arm's driving method is stable and reliable, ensuring the stability of the first and second gear switching and facilitating the realization of multi-gear locking functionality.

[0008] Furthermore, the rotary hinge structure includes: An axial through hole is provided in the cover body; Bearing support components on a fixed base; A rotating shaft that passes through an axial through hole and is fixed to the bearing support.

[0009] The aforementioned structure provides a low-friction rotation fulcrum, enabling the cover to switch between multiple angles. This rotary hinge structure, through the cooperation of the bearing support and the rotating shaft, provides a low-friction rotation fulcrum, making the rotation of the cover between the closed position, the first open position, and the second open position smoother, without the need for additional force, thus solving the problem of "cumbersome operation." At the same time, the low-friction and stable rotation support ensures that the cover is not prone to jamming when switching between positions, and can accurately stop and stably lock in the first and second open positions, ensuring the realization of the "stable locking function for multiple positions." In addition, the smooth rotation characteristics also provide a basis for the cover to switch positions in conjunction with the charging action (such as from the first open position to the second open position), solving the problem of "lack of linkage with charging action."

[0010] Furthermore, the elastic drive unit is a torsion spring sleeved on the rotating shaft, with its two ends fixed to the side wall of the cover and the boss of the fixed base, respectively. The torsion spring continuously applies a closing torque, driving the cover to close automatically. The torsion spring sleeved on the rotating shaft continuously applies a closing torque to the cover. When the cover is in the open state (first or second open position) and the lock is released (e.g., the charging gun is pulled out), the torsion spring automatically drives the cover to close, eliminating the need for manual operation and solving the problem of "cumbersome operation." Simultaneously, this automatic closing process is linked to the action of pulling out the charging gun (disappearance of external force), achieving automatic reset of the cover and solving the problem of "lack of automatic reset linked to the charging action." In addition, the continuous torque of the torsion spring also provides a stable reverse force for the cover when locked in each position, ensuring more reliable locking in the first and second open positions and assisting in achieving "multi-position stable locking function."

[0011] Furthermore, a radial locking protrusion is provided at the hinge point of the cover; The first locking part is a radial extension rod on the locking trigger; When the cover is in the first open position, the radial extension rod abuts against the locking boss. When the cover is rotated to the first open position, the extension rod and the boss abut and lock together to form a rigid physical stop, resisting the rebound force of the torsion spring. The radial locking boss of the cover abuts against the radial extension rod of the locking trigger to form a rigid physical stop, which can stably resist the rebound force of the torsion spring and ensure that the cover is reliably locked in the first open position (100°~120°), solving the problem of "multi-position stable locking function"; at the same time, the locking process does not require manual intervention, and is automatically triggered simply by rotating the cover to the corresponding position, simplifying the operation and solving the problem of "cumbersome operation"; in addition, the triggering and releasing of this locking structure (through the rotation of the locking trigger) can be linked with the charging action, further avoiding additional operations and enhancing the coordination with the charging action.

[0012] Furthermore, the retaining structure includes: a balance lever, centrally hinged to a fixed base, having a force-bearing end and a balance end; The planar drive unit is located on the circumferential sidewall of the locking trigger, parallel to and opposite to the force-bearing end; An elastic abutment unit is located between the force-bearing end and the planar driving part, forcing the two to remain in contact; The limiting groove is located on the rotation trajectory of the cover; The flat contact part is located at the balance end of the balance lever; When the latch-up trigger switches to the second balanced position: The planar drive unit pushes the force-receiving end, causing the balance lever to rotate; The planar abutment portion is embedded in the limiting groove, forming a rigid abutment point with the groove wall. In this retaining structure, when the locking trigger switches to the second balanced position due to the insertion of the charging gun, the planar drive portion pushes the force-bearing end of the balance lever, causing the planar abutment portion of the balance end to embed into the limiting groove of the cover, forming a rigid abutment point. The cover is stably held in the second open position by the reverse balancing torque, solving the problem of "multi-position stable locking function". At the same time, this process is directly triggered by the locking trigger (linked with the charging action), eliminating the need for manual operation to fix the cover, solving the problem of "cumbersome operation". In addition, the action of the retaining structure is linked with the external force of the charging gun insertion, realizing the automated coordination of the second-position locking and the charging action, solving the problem of "lack of linkage with the charging action".

[0013] Furthermore, the elastic abutment unit is a compression helical spring, with its two ends pressing against the force-receiving end and the fixed base respectively, applying an elastic force toward the planar driving part to the force-receiving end; The compression helical spring continuously presses against the force-bearing end of the balance lever, ensuring constant contact between it and the planar drive part. This guarantees stable linkage between the holding structure and the locking trigger (the charging action linkage component), solving the problem of "lack of linkage with the charging action." Simultaneously, the perpendicular orthogonal contact surfaces increase contact stability, preventing the planar contact part from slipping out of the limiting groove and ensuring reliable locking in the second opening position, thus solving the problem of "multi-position stable locking function." Furthermore, the spring's automatic pre-tensioning and the orthogonal surface's self-positioning characteristics eliminate the need for manual adjustment of the contact state, reducing operational steps and solving the problem of "cumbersome operation."

[0014] A charging device includes: a charging base with a charging cavity; a charging gun head; the aforementioned protective structure; and a trigger arm whose free end extends into the charging cavity. When the charging gun head is inserted, it pushes the trigger arm to switch the locking trigger to a second balanced position. In this structure, the free end of the trigger arm extends into the charging cavity, and when the charging gun head is inserted, it directly pushes the trigger arm, driving the locking trigger to switch from a first locked position to a second balanced position. This achieves automated linkage between the action of "inserting the charging gun" and "unlocking at the first position and triggering at the second position," eliminating the need for additional manual unlocking steps and solving the problems of "cumbersome operation" and "lack of linkage with charging actions." At the same time, this linkage process accurately triggers the second position lock, ensuring that the cover is stably in the second open position during charging.

[0015] Furthermore, after the gun head is pulled out, the locking trigger resets to the first locked position under the drive of the elastic holding unit, and the cover closes automatically. The entire process requires no manual intervention and is directly linked to the "pulling out the gun head" action, achieving automated reset and solving the problems of "cumbersome operation" and "lack of automated reset linked to charging action." In addition, the precise reset of the locking trigger during the reset process ensures the reliability of the first-gear locking during the next use, helping to maintain the stability of the multi-gear function.

[0016] Furthermore, the abutting end face of the charging base is provided with a first magnet; A second magnet is located inside the cover; when the cover is in the closed position, the first and second magnets attract each other. Traditional charging port protective covers may not close tightly after closing due to vibration or insufficient force of the elastic drive unit, requiring manual pressing for confirmation, which is cumbersome; moreover, the closed state lacks stability, affecting the protective effect. However, the magnets attract each other when the cover is closed, which enhances the sealing and stability of the closed position, prevents the cover from opening accidentally, and solves the problem of maintaining a stable closed state (assisting in stabilizing the closed position in multiple positions); at the same time, the magnets attract the elastic drive unit to achieve a tight closure of the cover without manual pressing, reducing operation steps and solving the problem of "cumbersome operation"; in addition, the automatic magnet attraction process is linked to the automatic reset of the cover (after the gun head is pulled out), ensuring the reliability of the closed state after reset and enhancing the automation effect linked with the charging action. Attached Figure Description

[0017] Figure 1 This is a perspective view of the protective structure of the present invention; Figure 2 This is a perspective view of the protective structure of the present invention; Figure 3This is a perspective view of the protective structure of the present invention when it is opened to the first open position and the locking trigger is in the first locked position. Figure 4 This is a cross-sectional view of the protective structure of the present invention when it is opened to the first open position and the locking trigger is in the first locked position. Figure 5 This is a cross-sectional view of the protective structure of the present invention when it is opened to the first open position and the locking trigger is in the first locked position. Figure 6 This is a cross-sectional view of the protective structure of the present invention when it is opened to the second open position and the locking trigger is located in the second equilibrium position. Figure 7 This is a cross-sectional view of the protective structure of the present invention when it is opened to the second open position and the locking trigger is located in the second equilibrium position. Figure 8 This is a state diagram of the charging device of the present invention before the charging gun is inserted when the device is opened to the first open position and the locking trigger is in the first locked position. Figure 9 This is a diagram showing the state of the charging device of the present invention after the charging gun is inserted when it is opened to the second open position and the locking trigger is in the second balance position. Figure 10 This is a diagram showing the charging device box cover of the present invention when closed.

[0018] Diagram: 1. Fixed base; 2. Cover; 2.1. Locking boss; 2.2. Second magnet; 2.3. Limiting groove; 3. Rotary hinge structure; 3.1. Axial through hole; 3.2. Bearing support; 3.3. Rotating shaft; 4. Elastic drive unit; 5. Locking structure; 5.1. Locking trigger; 5.2. First locking part; 5.3. Trigger arm; 5.4. Elastic holding unit; 5.5. Holding structure; 5.5.1. Balance lever; 5.5.2. Force-bearing end; 5.5.3. Balance end; 5.5.4. Planar drive part; 5.5.5. Planar abutment part; 5.5.6. Elastic abutment unit; 6. Charging base; 6.1. Charging cavity; 6.2. Charging gun head; 6.3. First magnet. Detailed Implementation

[0019] Before detailing any embodiment of the invention, it should be understood that the invention, in its application, is not limited to the details of the construction and arrangement of the components set forth in the following description or illustrated in the following figures. The invention can have other embodiments and can be practiced or carried out in various ways. Furthermore, it should be understood that the wording and terminology used herein are for descriptive purposes and should not be considered limiting. The use of “comprising” or “having” and variations thereof is intended to cover the items set forth below and their equivalents, as well as any additional items. Unless otherwise specified or limited, the terms “installation,” “connection,” “support,” and “linkage,” and variations thereof are used broadly and cover both direct and indirect installation, connection, support, and linking. Moreover, “connection” and “linkage” are not limited to physical or mechanical connections or links.

[0020] Furthermore, firstly, in the disclosure of this invention, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "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 invention and simplifying the description, and do not indicate or imply that the mechanism or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limiting this invention. Secondly, the term "a" should be understood as "at least one" or "one or more," that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple. The term "a" should not be construed as a limitation on the quantity.

[0021] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments, and any modifications or variations of the embodiments of the present invention may be made without departing from the stated principles.

[0022] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1 to 2The charging port protection structure features a self-resetting dual-mode locking mechanism, enabling flexible switching and stable locking of the cover 2 between a closed position, a first open position, and a second open position. It mainly consists of a fixed base 1, a cover 2, an elastic drive unit 4, and a locking structure 5. The cover 2 is connected to the fixed base 1 via a rotary hinge structure 3. This rotary hinge structure 3 specifically includes an axial through hole 3.1 on the cover 2, a bearing support 3.2 on the fixed base 1, and a rotating shaft 3.3 that passes through the axial through hole 3.1 and is fixed to the bearing support 3.2. This structure allows the cover 2 to rotate smoothly between the three positions. The elastic drive unit 4 continuously applies a force towards the closed position to the cover 2, providing power for the cover 2 to reset. The elastic drive unit 4 is a torsion spring sleeved on the rotating shaft 3.3, with its two ends fixed to the cover 2 and the fixed base 1, respectively. Please refer to [link to relevant documentation]. Figures 3 to 4 The locking structure 5 includes a rotatable locking trigger 5.1, an elastic holding unit 5.4, and a retaining structure 5.5, wherein the locking trigger 5.1 is provided with a first locking part 5.2. When the locking trigger 5.1 is in the first locked position under the action of the elastic holding unit 5.4, the first locking part 5.2 will engage with the cover 2, thereby fixing the cover 2 in the first open position.

[0024] Please refer to Figure 6 When the locking trigger 5.1 is switched to the second equilibrium position by an external force, the first locking part 5.2 will disengage from the cover 2. At this time, the elastic drive unit 4 will drive the cover 2 to rotate to the second open position. At the same time, the movement of the locking trigger 5.1 directly triggers the holding structure 5.5 to abut against the cover 2, generating a reverse balancing torque, so that the cover 2 is stably held in the second open position.

[0025] The locking structure 5 also includes a trigger arm 5.3 connected to the locking trigger 5.1 with its free end exposed. When the free end of the trigger arm 5.3 is pressed, it can drive the locking trigger 5.1 to rotate around the hinge center line to switch from the first locked position to the second balanced position.

[0026] Please refer to Figure 4 A radially outward locking protrusion 2.1 is provided at the hinge point of the cover 2. The first locking part 5.2 is a radial extension rod on the locking trigger 5.1. When the cover 2 is in the first open position, the radial extension rod abuts against the locking protrusion 2.1 to lock the cover 2. Please refer to Figures 5 to 7The function of the retaining structure 5.5 is to ensure that the cover 2 is stably held in the second open position. It includes a balance lever 5.5.1, a planar drive part 5.5.4, an elastic abutment unit 5.5.6, a limiting groove 2.3, and a planar abutment part 5.5.5. The balance lever 5.5.1 is centrally hinged to the fixed base 1 and has a force-bearing end 5.5.2 and a balance end 5.5.3. The planar drive part 5.5.4 is located on the circumferential side wall of the locking trigger 5.1 and is arranged opposite to the force-bearing end 5.5.2. The elastic abutment unit 5.5.6 is located between the force-bearing end 5.5.2 and the fixed base 1 and applies an elastic force toward the planar drive part 5.5.4 to the force-bearing end 5.5.2 to keep them in contact. The limiting groove 2.3 is located on the rotation trajectory of the cover 2. The planar abutment part 5.5.5 is located at the balance end 5.5.3 of the balance lever 5.5.1. When the locking trigger 5.1 switches to the second balance position, the planar drive unit 5.5.4 pushes the force-receiving end 5.5.2, causing the balance lever 5.5.1 to rotate. This allows the planar abutment part 5.5.5 to embed into the limiting groove 2.3, forming a rigid abutment point with the wall of the limiting groove 2.3. The elastic abutment unit 5.5.6 here is mostly a compression coil spring, with its two ends pressing against the force-receiving end 5.5.2 and the lever mounting seat, respectively. Moreover, the contact surface between the planar abutment part 5.5.5 and the limiting groove 2.3 is a perpendicular orthogonal plane, which helps to enhance the stability of the abutment. Please refer to Figure 8 and Figure 9 The charging device including this protective structure consists of a charging base 6 with a charging cavity 6.1, a charging nozzle 6.2, and the aforementioned self-resetting dual-mode locking charging port protective structure. The free end of the trigger arm 5.3 of the protective structure extends into the charging cavity 6.1. When the charging nozzle 6.2 is inserted, it pushes the trigger arm 5.3, causing the locking trigger 5.1 to switch from the first locked position to the second balanced position. At this time, the cover 2 rotates to the second open position under the action of the elastic drive unit 4 and is stably held by the holding structure 5.5.

[0027] Please refer to Figure 10 When the gun head is pulled out, the locking trigger 5.1 is reset to the first locking position under the drive of the elastic holding unit 5.4, and the cover 2 is automatically closed under the action of the elastic driving unit 4.

[0028] In addition, to enhance the sealing and fixation of the cover 2 when closed, the abutting end face of the charging base 67 is provided with a first magnet 6.3, and the inner side of the cover 2 is provided with a second magnet 2.2. When the cover 2 is in the closed position, the first magnet 6.3 and the second magnet 2.2 will attract each other. The above description only illustrates the preferred embodiments of the present invention and should not be construed as limiting the scope of the claims. The present invention is not limited to the above embodiments, and variations in its specific structure are permitted. All modifications made within the scope of the independent claims of this invention are also within the scope of protection of this invention.

Claims

1. A charging port dust cover structure with automatic closing dual-mode locking, characterized in that, include: Fixed base (1); The cover (2) is connected to the fixed base (1) through a rotating hinge structure (3) and can switch between the closed position, the first open position and the second open position; The elastic drive unit (4) continuously applies a force toward the closed position to the cover (2); Locking structure (5), comprising: A locking trigger (5.1) rotatably mounted on a fixed base (1); The first locking part (5.2) is provided in the locking trigger (5.1); The elastic holding unit (5.4) forces the locking trigger (5.1) to remain in the first locked position; Maintain the structure (5.5); When the locking trigger (5.1) is in the first locked position, the first locking part (5.2) engages with the cover (2) to fix it in the first open position; When the latch-up trigger (5.1) is switched to the second equilibrium position by an external force: The first locking part (5.2) disengages from the cover (2), and the elastic drive unit (4) drives the cover (2) to rotate to the second open position; The movement of the locking trigger (5.1) directly triggers the holding structure (5.5) to abut against the cover (2), generating a reverse balancing torque, so that the cover (2) is held in the second open position.

2. The dust cover structure for the charging port according to claim 1, characterized in that: The locking structure (5) also includes a trigger arm (5.3), which is connected to the locking trigger (5.1) and has its free end exposed; When the free end of the trigger arm (5.3) is pressed, it drives the locking trigger (5.1) to switch from the first locked position to the second balanced position.

3. The dust cover structure for the charging port according to claim 1, characterized in that: The rotary hinge structure (3) includes: An axial through hole (3.1) is provided in the cover (2); Bearing support (3.2) on fixed base (1); A rotating shaft (3.3) that passes through an axial through hole (3.1) and is fixed to a bearing support (3.2).

4. The protective structure according to claim 1, characterized in that: The elastic drive unit (4) is a torsion spring sleeved on the rotating shaft (3.3), with its two ends fixed to the cover (2) and the fixed base (1) respectively.

5. The dust cover structure for the charging port according to claim 1, characterized in that: The cover (2) is provided with a locking protrusion (2.1) arranged radially outward at the hinge point; The first locking part (5.2) is a radial extension rod on the locking trigger (5.1); When the cover (2) is in the first open position, the radial extension rod abuts against the locking boss (2.1).

6. The dust cover structure for the charging port according to claim 1, characterized in that, The retaining structure (5.5) includes: The balancing lever (5.5.1) is centrally hinged to the fixed base (1) and has a force-bearing end (5.5.2) and a balancing end (5.5.3); The planar drive unit (5.5.4) is provided on the circumferential sidewall of the locking trigger (5.1) and is parallel to and opposite to the force-receiving end (5.5.2); An elastic abutment unit (5.5.6) is provided between the force-receiving end (5.5.2) and the planar driving part (5.5.4) to force the two to remain in contact; A limiting groove (2.3) is provided on the rotation trajectory of the cover (2); The flat contact part (5.5.5) is provided at the balance end (5.5.3) of the balance lever (5.5.1); When the latch-up trigger (5.1) switches to the second balanced position: The planar drive unit (5.5.4) pushes the force-receiving end (5.5.2), causing the balance lever (5.5.1) to rotate; The planar contact part (5.5.5) is embedded in the limiting groove (2.3) and forms a rigid contact point with the wall of the limiting groove (2.3).

7. The dust cover structure for the charging port according to claim 6, characterized in that: The elastic abutment unit (5.5.6) is a compression helical spring, with its two ends pressing against the force-receiving end (5.5.2) and the fixed base (1) respectively, applying an elastic force towards the planar driving part (5.5.4) to the force-receiving end (5.5.2); The contact surfaces of the planar abutment portion (5.5.5) and the limiting groove (2.3) are perpendicular orthogonal planes.

8. A charging device, characterized in that, include: A charging base (6) having a charging socket (6.1); Charging gun head (6.2); The protective structure as described in any one of claims 1-7; The free end of the trigger arm (5.3) extends into the charging cavity (6.1). When the charging gun head (6.2) is inserted, it pushes the trigger arm (5.3) to switch the locking trigger (5.1) to the second equilibrium position.

9. The charging device according to claim 8, characterized in that: After the gun head is pulled out, the locking trigger (5.1) is reset to the first locking position under the drive of the elastic holding unit (5.4), and the cover (2) closes automatically.

10. The charging device according to claim 9, characterized in that: The charging base (6) has a first magnet (6.3) on its contact end face, and the cover (2) has a second magnet (2.2) on its inner side; When the cover (2) is in the closed position, the first magnet (6.3) and the second magnet (2.2) attract each other.

Images