Charging gun with emergency unlocking device

Abstract

The application provides a charging gun with an emergency unlocking device. The charging gun comprises a locking member with a cam. The cam has a cam body and a protruding portion. The cam body is in an elliptical shape. The protruding portion is parallel to the short axis direction of the cam body and extends from the cam body tangentially to the outer circumference of the cam body. The cam is configured to rotate between a locking position and an unlocking position. When the cam is in the locking position, the end of the cam body along the long axis direction abuts against the locking hook of the charging gun, thereby limiting the actuation of the locking hook. When the cam is actuated to the unlocking position, the end of the cam body along the short axis direction is opposite to the locking hook and is away from the locking hook by a distance, thereby allowing the actuation of the locking hook. The emergency unlocking device is configured to move towards the inside of the charging gun under external force and push the protruding portion, so that the cam rotates from the locking position to the unlocking position. The charging gun can simplify the unlocking operation and effectively solve the problem that the pin of the split design is easy to be lost.

Description

Technical Field

[0001] This utility model relates to the field of new energy vehicles, and in particular to a charging gun for new energy vehicles. Background Technology

[0002] With the increasing popularity of new energy vehicles, plug-in charging stations have become a critical infrastructure. During charging, the charging gun typically uses a built-in locking mechanism to lock the hook in a position interlocked with the vehicle's charging socket, ensuring a safe and reliable charging process.

[0003] However, in practical applications, the locking mechanism is at risk of failure due to unforeseen malfunctions. For example, the charging station's control system may crash, the power supply module may be interrupted, or the locking mechanism itself may become mechanically jammed. Once a malfunction occurs, the locking mechanism will not automatically unlock after charging is complete, and the charging gun will be abnormally locked, preventing the user from properly removing the charging gun. This not only causes great inconvenience but may also pose a safety hazard in emergencies.

[0004] Currently, to address the issue of the charging gun being unable to be removed due to a malfunction in the locking mechanism, operators typically need to manually unlock the mechanism using additional auxiliary tools. However, these auxiliary tools are usually separate from the charging gun, requiring operators to find or obtain them from elsewhere outside the charging gun and insert them into a specific port on the charging gun to complete the emergency unlocking operation.

[0005] Therefore, there is an urgent need for a solution to further simplify the emergency unlocking operation when the lock component malfunctions, ensuring that the operator can easily and quickly complete the emergency unlocking operation when an emergency unlocking is required, thereby successfully pulling out the charging gun. Utility Model Content

[0006] The purpose of this utility model is to provide a charging gun with an emergency unlocking device to simplify the emergency unlocking operation when the lock component malfunctions, and to ensure that the operator can easily and quickly complete the emergency unlocking operation when an emergency unlocking is required.

[0007] According to one aspect of the present invention, a charging gun with an emergency unlocking device is provided. The charging gun includes a locking member with a cam. The cam has a cam body and a protrusion. The cam body has a generally elliptical profile, and the protrusion extends from the cam body parallel to its minor axis and tangentially to its outer circumference. The cam is rotatably connected to a rotating shaft located inside the charging gun and is configured to rotate about the rotating shaft between a locked position and an unlocked position. When the cam is in the locked position, the end of the cam body along its long axis abuts against the locking hook of the charging gun, thereby restricting the actuation of the locking hook; when the cam is actuated to the unlocked position, the end of the cam body along its short axis is opposite to the locking hook and at a distance from the locking hook, thereby allowing the locking hook to actuate. The emergency unlocking device is configured to move toward the inside of the charging gun and push the protrusion under the action of an external force when the cam is in the locked position, thereby causing the cam to rotate from the locked position to the unlocked position.

[0008] In one embodiment, when the cam is in the locked position, the protrusion is aligned with the end of the emergency unlocking device located inside the charging gun.

[0009] In one embodiment, the emergency unlocking device includes an emergency unlocking lever and a spring. The emergency unlocking lever is inserted into the charging gun, with one end of the lever located inside the charging gun and the other end located outside the charging gun. The spring is sleeved on the emergency unlocking lever and is configured to return the emergency unlocking lever to its initial position by elastic force when the external force is removed.

[0010] In one embodiment, the locking hook includes a limiting portion, wherein when the cam is in the locked position, the end of the cam body along the long axis abuts against the limiting portion, thereby limiting the actuation of the locking hook.

[0011] According to the above solution, the charging gun is equipped with an integrated emergency unlocking device. When the lock component malfunctions and cannot unlock automatically, the operator can directly press the emergency unlocking device to unlock the lock component without having to find or obtain additional auxiliary tools outside the charging gun, such as a detachable pin, key, or branch. Therefore, the step of finding auxiliary tools and inserting them into specific interfaces of the charging gun is eliminated, effectively simplifying the emergency unlocking operation and ensuring that the operator can easily and quickly complete the corresponding unlocking operation when an emergency unlocking is needed. Furthermore, integrating the emergency unlocking device into the charging gun effectively solves the problems of easily lost, difficult-to-use, and poor user experience associated with detachable pin designs.

[0012] In addition, the cam body is set with an elliptical profile, and the protrusion is set at one end of the long axis of the cam body, which can increase the rotational force arm when the cam rotates. Therefore, the operator can use only a small force to smoothly rotate the cam from the locked position to the unlocked position to realize the emergency unlocking operation of the locking mechanism.

[0013] In one embodiment, the emergency unlocking lever includes a lever body and a handle, the handle being hinged to the lever body, a spring being sleeved on the lever body, and the handle being configured to rotate relative to the lever body between a pull-out position and a retracted position.

[0014] In one embodiment, when the handle is in the retracted position, the handle is at least partially positioned within the housing of the charging gun, and the handle and the rod are generally L-shaped.

[0015] In one embodiment, the handle includes a generally L-shaped interconnected connecting portion and a pressing portion, the connecting portion being hinged to the rod body, and the pressing portion being used to bear external forces.

[0016] In one embodiment, the handle further includes a toggle groove disposed at the connection between the connecting portion and the pressing portion, and configured to be at least partially exposed to the outside of the charging gun housing when the handle is in the retracted position.

[0017] According to the above scheme, when the operator needs to unlock the lock component in an emergency, the handle can be pulled out of the charging gun housing using the toggle slot, ensuring that the emergency unlocking operation can be completed smoothly. After emergency unlocking or during normal use, the handle can be at least partially hidden inside the charging gun housing, reducing the external space occupied by the handle, preventing accidental operation of the emergency unlocking device, and improving the aesthetics of the charging gun.

[0018] In one embodiment, the emergency unlocking lever includes a lever body and a handle, the handle being fixedly connected to the lever body and located outside the housing of the charging gun, and a spring being sleeved on the lever body.

[0019] In one embodiment, the end of the handle away from the rod has a dome shape.

[0020] According to the above scheme, the handle that bears the external force is designed with a dome-shaped head, so that the force on the handle is more even and the operator can further facilitate the emergency unlocking operation of the lock components. Attached Figure Description

[0021] To better understand the above and other objects, features, advantages, and functions of this utility model, reference can be made to the preferred embodiments shown in the accompanying drawings. The same reference numerals in the drawings refer to the same parts. Those skilled in the art should understand that the drawings are intended to schematically illustrate the preferred embodiments of this utility model and do not limit the scope of this utility model in any way; the parts in the drawings are not drawn to scale.

[0022] Figure 1 A front view of a charging gun with an emergency unlocking device according to an embodiment of the present invention is shown.

[0023] Figure 2 A perspective view of the locking hook according to an embodiment of the present invention is shown.

[0024] Figure 3A perspective view of a cam according to an embodiment of the present invention is shown.

[0025] Figure 4 A perspective view of the cam in the locked position according to an embodiment of the present invention is shown.

[0026] Figure 5 A perspective view of the cam in the unlocked position according to an embodiment of the present invention is shown.

[0027] Figure 6 A perspective view of the emergency unlocking device of this utility model embodiment when it is in the out position is shown.

[0028] Figure 7 A perspective view of the emergency unlocking device of this utility model embodiment in the retracted position is shown.

[0029] Figure 8 A perspective view of a charging gun with another emergency unlocking device according to an embodiment of the present invention is shown.

[0030] Figure 9 A perspective view of a charging gun with another emergency unlocking device according to an embodiment of the present invention is shown when the cam is in the locked position.

[0031] Explanation of reference numerals in the attached figures: Detailed Implementation

[0032] Now, with reference to the accompanying drawings, specific embodiments of the present invention will be described in detail. The embodiments described herein are merely preferred embodiments of the present invention; those skilled in the art can conceive of other ways to implement the present invention based on these preferred embodiments, and such other ways also fall within the scope of the present invention.

[0033] In particular, all directions used herein are relative directions, which are intended only to exemplify the relative positional or kinematic relationships between different components in the embodiments and are not restrictive. Those skilled in the art should understand that as long as the components involved in the embodiments can achieve the specific functions or play the specific roles described herein, even if the aforementioned relative positional or kinematic relationships are changed or modified, the resulting technical solution still falls within the scope of this utility model.

[0034] This utility model provides a charging gun with an emergency unlocking device. For example... Figure 1As shown, the charging gun 100 includes a gun head 1, a gun body 2, and a handle 3. The gun head 1 is mounted in the gun body 2 and partially protrudes forward from the gun body 2 for docking with the vehicle's charging socket during charging. The handle 3 extends rearward from the gun body 2 at an angle. Preferably, the housing of the gun body 2 can be a molded part.

[0035] Combination Figures 2 to 5 The charging gun 100 also includes a locking hook 4 and a locking member (e.g., a cam 5). The locking hook 4 is disposed on the gun body 2 and is configured to interlock with the vehicle's charging socket during charging and disengage from the vehicle's charging socket after charging is completed, allowing the operator to remove the charging gun 100. The locking member is disposed inside the gun body 2 and is configured to lock the position of the locking hook 4 during charging, keeping the locking hook 4 always interlocked with the vehicle's charging socket, thereby preventing the charging gun 100 from accidentally disengaging from the vehicle during charging. The locking member is also configured to automatically unlock after charging is completed, allowing the operator to actuate the locking hook 4 and disengage it from the vehicle's charging socket, thereby removing the charging gun 100.

[0036] The locking component can be an electronic lock, an electromagnetic lock, or any other device suitable for locking and unlocking the hook of the charging gun.

[0037] In actual use, the locking mechanism may malfunction, causing it to fail to automatically unlock after charging is complete. Therefore, in this situation, the locking hook 4 remains locked by the locking mechanism, and the operator cannot disengage the hook 4 from the vehicle's charging socket by actuating it, thus preventing the charging gun 100 from being removed from the vehicle's charging socket.

[0038] Therefore, the charging gun 100 in this embodiment of the present invention is also provided with an emergency unlocking device 6, which is used to temporarily unlock the lock component when the lock component malfunctions. After the lock component is unlocked in an emergency, the operator can actuate the lock hook 4.

[0039] like Figure 1 As shown, the emergency unlocking device 6 is located in the gun body 2 and at least partially protrudes from the housing of the gun body 2. When charging is completed, if the locking component malfunctions and cannot unlock automatically, the operator can manually unlock the locking component by pressing the emergency unlocking device 6 towards the inside of the gun body 2, and then detach the charging gun 100 from the vehicle's charging socket by actuating the locking hook 4.

[0040] In an exemplary embodiment, reference is made to Figure 1 and Figure 2As shown, the locking hook 4 may include a button 41 and a locking tongue 42. The button 41 may be located above the gun body 2 and is configured to move the locking tongue 42 when pressed by the operator, thereby achieving interlocking and disengagement between the locking tongue 42 and the vehicle's charging socket.

[0041] As an example, the locking hook 4 can be a long rod extending approximately along the length of the gun body 2. A button 41 is provided at one end of the rod near the handle 3, and a locking tongue 42 is provided at the other end near the gun head 1. The locking hook 4 can be rotatably mounted on the gun body 2. For example, the locking hook 4 can also include a connecting hole 43 between the button 41 and the locking tongue 42, with a rotating shaft fixed to the gun body 2 passing through this connecting hole 43, allowing the locking hook 4 to rotate around this rotating shaft under the actuation of the operator.

[0042] When the locking hook 4 is not locked by the locking mechanism, when the operator presses the button 41, the external force applied to the button 41 causes the locking hook 4 to rotate counterclockwise around the rotation axis, thereby causing the button 41 to move towards the gun body 2. At the same time, the locking tongue 42 at the other end moves in the opposite direction relative to the button 41, for example, moving away from the gun head 1, thereby disengaging the locking tongue 42 from the vehicle's charging socket. When the operator releases the external force applied to the button 41, the locking hook 4 can return to its initial position, for example, by means of the elastic force of a spring. For example, the locking hook 4 rotates clockwise around the rotation axis, the button 41 springs back up, and the locking tongue 42 moves towards the gun body 2 and returns to a position where it can interlock with the vehicle's charging socket.

[0043] refer to Figures 3 to 5 The locking component may include or be configured as a cam 5. The cam 5 is rotatably connected to a rotating shaft inside the gun body 2. The cam 5 may be configured to rotate about the rotating shaft between a locked position and an unlocked position. In the locked position, the cam 5 prevents the actuation of the locking hook 4, for example, preventing the operator from pressing button 41, thereby keeping the locking tongue 42 interlocked with the vehicle's charging socket. In the unlocked position, the cam 5 allows the actuation of the locking hook 4, so that when the operator presses button 41 at this time, the locking tongue 42 can be smoothly lifted, disengaging it from the vehicle's charging socket, and allowing the charging gun 100 to be pulled out.

[0044] Furthermore, the cam 5 may have a cam body 51 and a protrusion 52. The cam body 51 may be generally elliptical in shape and have a major axis 511 and a minor axis 512. The protrusion 52 extends outward from the cam body 51, its extension direction being parallel to the minor axis 512 and tangent to the outer circumference of the cam body 5. Preferably, the outer circumferential portion of the cam body 51 near the protrusion 52 may be a flat surface 513.

[0045] The cam 5 may also include a shaft hole 53, in which a drive shaft or the output shaft of a motor can pass through to drive the cam 5 to rotate.

[0046] refer to Figure 2 , Figure 4 and Figure 5 The locking and unlocking of the locking components can be achieved through the mutual contact between the limiting part 413 on the lock hook 4 and the cam 5.

[0047] For example, button 41 may include a top cover 411, a circumferential wall 412, and at least one limiting portion 413. The circumferential wall 412 extends along the circumferential edge of the top cover 411, thereby forming a generally cylindrical structure with one open end. The top cover 411 and the circumferential wall 412 together form an inner cavity of button 41. The limiting portion 413 is disposed in the inner cavity and extends from the inner surface of the top cover 411.

[0048] When the cam 5 is in the locked position, the cam body 51 and the limiting part 413 come into contact with each other, thereby restricting the actuation of the locking hook 4.

[0049] like Figure 4 As shown, at this time, the long axis 511 of the cam body 51 can be set approximately parallel to the height direction of the gun body 2 or at an angle to that height direction, and the end of the cam body 51 opposite to the protrusion 52 abuts against the limiting part 413, thereby preventing the button 41 from moving downward under the operator's pressing action. Due to the blocking effect of the cam 5 on the button 41, the operator cannot disengage the locking tongue 42 from the vehicle's charging socket by pressing the button 41, thereby keeping the locking tongue 42 always in the interlocked position with the vehicle's charging socket.

[0050] When the cam 5 is in the unlocked position, a gap is formed between the cam 5 and the limit part 413, which allows the operator to actuate the locking hook 4.

[0051] For example, such as Figure 5 As shown, when the cam 5 is in the unlocked position, the short axis 512 of the cam body 51 can be set approximately parallel to or at an angle to the height direction of the gun body 2. One end of the cam body 51 along the direction of the short axis 512 is arranged opposite to and at a distance from the limiting part 413. This distance allows the button 41 to move downward under the pressure of the operator, thereby disengaging the locking tongue 42 from the vehicle's charging socket.

[0052] In an exemplary embodiment, the emergency unlocking device 6 may be disposed on one side of the gun body 2. The emergency unlocking device 6 may be rod-shaped and inserted into the gun body 2. The two ends of the emergency unlocking device 6 are respectively located inside and outside the housing of the gun body 2. The emergency unlocking device 6 is configured to move from an initial position to an emergency unlocking position under the action of an external force along the direction in which it is inserted into the gun body 2, thereby rotating the cam 5 from the locked position to the unlocked position to allow the operator to actuate the locking hook 4.

[0053] Furthermore, the emergency unlocking device 6 may include an emergency unlocking lever 61 and a spring 62. The emergency unlocking lever 61 is inserted into the gun body 2, and the spring 62 is sleeved on the emergency unlocking lever 61. A limit structure 63 may also be provided on the emergency unlocking lever 61, and the spring 62 is disposed between the limit structure 63 and a corresponding limit structure on the gun body 2. When the emergency unlocking lever 61 moves to the emergency unlocking position under the action of external force, the spring 62 is in a compressed state. At this time, if the operator cancels the external force applied to the emergency unlocking lever 61, the emergency unlocking lever 61 can return to the initial position under the elastic force of the spring 62.

[0054] During emergency unlocking, the travel distance of the emergency unlocking lever 61 toward the inside of the gun body 2 can be set according to the actual situation of the charging gun 100. Preferably, the travel distance of the emergency unlocking lever 61 can be approximately 13.5 mm.

[0055] In the above embodiment, the process of unlocking the cam 5 using the emergency unlocking lever 61 is as follows: When charging is complete and cam 5 malfunctions and cannot unlock automatically, cam 5 remains in the locked position. That is, the position of the locking hook 4 is locked by cam 5. At this time, the long axis 511 of the cam body 51 is approximately parallel to the height direction of the gun body 2. Therefore, the end of the cam body 51 away from the protrusion 52 abuts against the limiting part 413 of the button 41, thereby preventing the locking hook 4 from rotating under external force. Correspondingly, the emergency unlocking lever 61 is in the initial position. In the initial position, the end of the emergency unlocking lever 61 located inside the gun body 2 is opposite to the protrusion 52 of the cam 5. Preferably, the length direction of the emergency unlocking lever 61 can be approximately parallel or collinear with the extension direction of the protrusion 52.

[0056] During emergency unlocking, when the operator applies external force to the emergency unlock lever 61, this force forces the lever 61 to move inward toward the gun body 2. During the movement of the emergency unlock lever 61 from its initial position to the emergency unlock position, the spring 62 fitted onto the lever 61 is continuously compressed. Once the end of the emergency unlock lever 61 located inside the gun body 2 contacts and abuts against the protrusion 52 of the cam 5, the cam 5 rotates under the pushing action of the lever 61. When the emergency unlock lever 61 is pushed to the emergency unlock position, the cam 5 correspondingly rotates from the locked position to the unlock position. For example, the cam 5 rotates 90 degrees clockwise or counterclockwise along the axis of rotation from the locked position to reach the unlock position. Therefore, the orientation of the cam body 51 changes from its major axis 511 being approximately parallel to the height direction of the gun body 2 in the locked position to its minor axis 512 being approximately parallel to the height direction of the gun body 2, and an appropriate distance is maintained between the cam body 51 and the limiting portion 413 of the button 41. Furthermore, at this time, the length direction of the emergency unlocking lever 61 can be approximately perpendicular to the extension direction of the protrusion 52. Preferably, the emergency unlocking lever 61 can be located at least partially within the opening formed by the protrusion 52 and the flat surface 513.

[0057] After completing the unlocking operation, the operator can release the external force applied to the emergency unlocking lever 61. The elastic force of the spring 62 pushes the emergency unlocking lever 61 in the opposite direction, causing it to move outward from the gun body 2, thus returning it to its initial position from the emergency unlocking position. At this time, the cam 5 remains in the unlocked position. The operator can press the button 41 to rotate the locking hook 4 along the rotation axis, thereby disengaging the locking tongue 42 from the vehicle's charging socket and pulling out the charging gun 100.

[0058] In this embodiment, the charging gun 100 is equipped with an integrated emergency unlocking device 6. When the lock component malfunctions and cannot unlock automatically, the operator can directly press the emergency unlocking device 6 to unlock the lock component without having to find or obtain additional auxiliary tools outside the charging gun 100, such as a detachable pin, key, or branch. Therefore, the step of finding auxiliary tools and inserting them into specific interfaces of the charging gun is omitted, effectively simplifying the emergency unlocking operation of the lock component and ensuring that the operator can easily and quickly complete the corresponding unlocking operation when an emergency unlocking is required. At the same time, integrating the emergency unlocking device 6 into the charging gun can also effectively solve the problems of detachable pins being easily lost, difficult to use, and having a poor user experience.

[0059] Furthermore, the cam body 51 is configured with an elliptical profile, and the protrusion 52 is provided at one end of the cam body 51 in the direction of the long axis, which can increase the rotational force arm when the cam 5 rotates. Therefore, the operator can use only a small force to smoothly rotate the cam 5 from the locked position to the unlocked position, so as to realize the emergency unlocking operation of locking components such as the cam 5.

[0060] like Figure 6 and Figure 7 As shown, in an exemplary embodiment, the emergency unlocking lever 61 may include a lever body 611 and a handle 612. The handle 612 is hingedly connected to one end of the lever body 611. A spring 62 is sleeved on the lever body 611.

[0061] The handle 612 can be configured to rotate relative to the lever 611 between a pulled-out position and a retracted position. When the handle 612 is rotated to the retracted position relative to the lever 611, the handle 612 and the lever 611 are arranged approximately perpendicular to each other; for example, the handle 612 and the lever 611 are arranged in a generally L-shaped configuration. When the handle 612 is rotated to the pulled-out position relative to the lever 611, the handle 612 and the lever 611 are arranged approximately collinearly; for example, the handle 612 and the lever 611 are arranged in a generally straight configuration.

[0062] To enable the operator to better press the handle 612 and smoothly move the emergency unlocking lever 61, the handle 612 may further include a connecting portion 613 and a pressing portion 614. One end of the connecting portion 613 is hinged to the lever body 611, and the other end of the connecting portion 613 is connected to the pressing portion 614. The pressing portion 614 is used to bear the external force exerted by the operator on the handle 612. Preferably, the connecting portion 613 and the pressing portion 614 are fixedly connected in a generally L-shaped configuration.

[0063] In the example, to facilitate the operator in pulling the handle 612 out of the housing of the gun body 2, the handle 612 may also include a lever groove 615. The lever groove 615 may be provided at the connection between the connecting portion 613 and the pressing portion 614. For example, the lever groove 615 may be provided at the corner of the L-shaped form jointly formed by the connecting portion 613 and the pressing portion 614. The lever groove 615 may be configured to be at least partially exposed outside the housing of the gun body 2 when the handle 612 is in the retracted position, so as to facilitate the operator's grip and thereby pull the handle 612 out of the housing of the gun body 2.

[0064] Preferably, the gun body 2 may also be provided with a limiting part to restrict the movement of the handle 612 toward the inside of the gun body 2. For example, the housing of the gun body 2 is provided with a limiting part, which can be configured to restrict the movement of the handle 612 toward the inside of the gun body 2 when the handle 612 is retracted into the housing of the gun body 2, thereby preventing the handle 612 from being accidentally actuated when no emergency unlocking operation is required, thus preventing accidental unlocking.

[0065] In this embodiment, when the operator needs to unlock the locking mechanism in an emergency, the handle 612 can be pulled out of the housing of the gun body 2 using the actuating groove 615, ensuring that the emergency unlocking operation can be completed smoothly. After emergency unlocking or during normal use, the handle 612 can be at least partially hidden inside the housing of the gun body 2, reducing the external space occupied by the handle 612, preventing accidental operation of the emergency unlocking device 6, and improving the aesthetics of the charging gun.

[0066] Furthermore, the gun body 2 may also include a guide section. The emergency unlocking device 6 may be configured to move along the guide section. For example, the emergency unlocking device 6 may move along the guide section toward the interior of the gun body 2 under the action of an external force, or move along the guide section toward the exterior of the gun body 2 under the action of the elastic force of the spring 62.

[0067] As an example, the guide portion of the gun body 2 can be a guide rod. To achieve the guiding function, the rod body 611 of the emergency unlocking device 6 can also include a guide groove 616 that cooperates with the guide rod. The guide groove 616 can be formed on the outer surface of the rod body 611 and extends through the rod body 611 to form a hollow groove. The guide groove 616 can extend along the length of the rod body 611. The guide rod passes through the guide groove 616.

[0068] refer to Figure 8 and Figure 9 In an embodiment of this invention, the handle 612 can also be fixedly connected to one end of the rod 611. Preferably, both the handle 612 and the rod 611 are cylindrical, and the outer diameter of the handle 612 is larger than the outer diameter of the rod 611. The stepped portion formed between the handle 612 and the rod 611 can serve as a limiting structure for the spring 62. The spring 62 can be sleeved on the rod 611 and located between the stepped portion and the limiting structure of the gun body 2. The end of the handle 612 away from the rod 611 can also have a dome shape.

[0069] The handle 612, which bears external force, is designed with a dome-shaped head, so that the force on the handle 612 is more even, which further facilitates the operator's emergency unlocking operation of the lock component.

[0070] The above description of various embodiments of this utility model is provided for descriptive purposes to a person skilled in the art. It is not intended to exclude or limit the utility model to a single disclosed embodiment. As taught above, those skilled in the art will understand that various alternatives and variations of this utility model are possible. Therefore, although some alternative embodiments have been specifically described, those skilled in the art will understand or relatively easily develop other embodiments. This utility model is intended to include all alternatives, modifications, and variations of the utility model described herein, as well as other embodiments falling within the spirit and scope of the utility model described above.

Claims

1. A charging gun (100) with an emergency unlocking device (6), characterized in that, The charging gun (100) includes a locking member having a cam (5), the cam (5) having a cam body (51) and a protrusion (52), the cam body (51) having a generally elliptical profile, and the protrusion (52) extending from the cam body (51) parallel to the minor axis and tangential to the outer circumference of the cam body (51). The cam (5) is rotatably connected to a rotating shaft disposed inside the charging gun (100) and is configured to rotate about the rotating shaft between a locked position and an unlocked position. When the cam (5) is in the locked position, the end of the cam body (51) along the long axis abuts against the locking hook (4) of the charging gun (100), thereby restricting the actuation of the locking hook (4); when the cam (5) is actuated to the unlocked position, the end of the cam body (51) along the short axis is opposite to the locking hook (4) and a distance away from the locking hook (4), thereby allowing the actuation of the locking hook (4). The emergency unlocking device (6) is configured to move toward the interior of the charging gun (100) under the action of an external force when the cam (5) is in the locked position and push the protrusion (52), thereby causing the cam (5) to rotate from the locked position to the unlocked position.

2. The charging gun (100) according to claim 1, characterized in that, When the cam (5) is in the locked position, the protrusion (52) is aligned with the end of the emergency unlocking device (6) located inside the charging gun (100).

3. The charging gun (100) according to claim 1, characterized in that, The emergency unlocking device (6) includes an emergency unlocking rod (61) and a spring (62). The emergency unlocking rod (61) is inserted into the charging gun (100), with one end of the emergency unlocking rod (61) located inside the charging gun (100) and the other end located outside the charging gun (100). The spring (62) is sleeved on the emergency unlocking rod (61) and is configured to return the emergency unlocking rod (61) to its initial position by elastic force when the external force is canceled.

4. The charging gun (100) according to claim 1, characterized in that, The locking hook (4) includes a limiting part (413). When the cam (5) is in the locked position, the end of the cam body (51) along the long axis direction abuts against the limiting part (413), thereby restricting the actuation of the locking hook (4).

5. The charging gun (100) according to claim 3, characterized in that, The emergency unlocking lever (61) includes a lever body (611) and a handle (612), the handle (612) being hingedly connected to the lever body (611), the spring (62) being sleeved on the lever body (611), and the handle (612) being configured to rotate relative to the lever body (611) between a pull-out position and a retracted position.

6. The charging gun (100) according to claim 5, characterized in that, When the handle (612) is in the retracted position, the handle (612) is at least partially positioned within the housing of the charging gun (100), and the handle (612) and the rod (611) are generally L-shaped.

7. The charging gun (100) according to claim 6, characterized in that, The handle (612) includes a generally L-shaped interconnected connecting portion (613) and a pressing portion (614), the connecting portion (613) being hinged to the rod (611), and the pressing portion (614) being used to bear the external force.

8. The charging gun (100) according to claim 7, characterized in that, The handle (612) also includes a toggle groove (615) disposed at the connection between the connecting portion (613) and the pressing portion (614), and configured to be at least partially exposed to the outside of the housing of the charging gun (100) when the handle (612) is in the retracted position.

9. The charging gun (100) according to claim 3, characterized in that, The emergency unlocking lever (61) includes a lever body (611) and a handle (612). The handle (612) is fixedly connected to the lever body (611) and located outside the housing of the charging gun (100). The spring (62) is sleeved on the lever body (611).

10. The charging gun (100) according to claim 9, characterized in that, The end of the handle (612) away from the rod (611) has a dome shape.

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