Charging gun with emergency unlocking function

Abstract

The charging gun with the emergency unlocking function comprises a gun shell, a mechanical lock and an electronic lock, a mounting cavity is formed in the gun shell, the electronic lock is arranged in the mounting cavity, the mechanical lock comprises a connecting strip, a hook part and a button, the middle of the connecting strip is rotationally connected with the mounting cavity through a rotating seat, and the hook part is arranged in the mounting cavity. The front section of the connecting strip extends out of the mounting cavity and is fixedly provided with the hook part, the rear section of the connecting strip is provided with a shaft hole, the button is rotationally matched with the shaft hole, and the lower end of the button is fixedly provided with an ejector rod; the push rod is positioned right above the electronic lock or the push rod and the electronic lock are staggered by rotating the button; the method has the advantages that emergency unlocking can be completed without tools, and simplicity and high efficiency are achieved.

Description

Technical Field

[0001] This utility model belongs to the field of charging gun technology, and in particular relates to a charging gun with an emergency unlocking function. Background Technology

[0002] The charging gun is a core component for charging electric vehicles (EVs) and plug-in hybrid electric vehicles (PHEVs). It connects the charging socket (power supply end) to the vehicle's charging interface to transfer electrical energy. Existing charging guns typically have a mechanical locking hook that engages with the charging socket to improve the stability of the connection. Furthermore, some charging guns also incorporate an electronic lock that secures the mechanical locking hook during charging, preventing accidental rotation and disengagement from the charging socket.

[0003] However, in the event of an unexpected power outage or an abnormal locking of the electronic lock, the charging gun will lock onto the charging base, making it impossible to remove the charging gun from the charging base. To address this, a charging gun disclosed in application number CN2024215416837 has an unlocking component on the side of the gun housing. By pressing the unlocking component, it extends into the mounting cavity, thereby pushing a cam on the electronic lock component to rotate to the unlocked position, allowing the user to unlock the mechanical lock hook and remove the charging gun.

[0004] In the above solution, the unlocking component is built into the guide hole, and the guide hole is generally small. It is difficult to rotate the cam to the unlock position by pressing the unlocking component with a finger. A thin tool (such as a screwdriver) is needed to push the unlocking component to effectively rotate the cam to the unlock position. This is inconvenient to use and there is room for improvement. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a charging gun with an emergency unlocking function, which can complete the emergency unlocking without the aid of tools, and is simple and efficient.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a charging gun with an emergency unlocking function, including a gun shell, a mechanical lock and an electronic lock. The gun shell is provided with a mounting cavity, and the electronic lock is disposed in the mounting cavity. The mechanical lock includes a connecting strip, a hook and a button. The middle part of the connecting strip is rotatably connected to the mounting cavity through a rotating seat. The front part of the connecting strip extends out of the mounting cavity and is fixedly provided with the hook. The rear part of the connecting strip is provided with a shaft hole. The button is rotatably engaged with the shaft hole. The lower end of the button is fixedly provided with a push rod. By rotating the button, the push rod is positioned directly above the electronic lock or the push rod is offset from the electronic lock.

[0007] Preferably, the button includes a pressing part and a connecting seat, the connecting seat being rotatably engaged with the shaft hole, the pressing part being detachably disposed at the upper end of the connecting seat, and the push rod being fixedly disposed at the lower end of the connecting seat.

[0008] Preferably, the lower end of the pressing part protrudes outward in the circumferential direction to form an upper limit ring, and the lower end of the connecting seat protrudes outward in the circumferential direction to form a lower limit ring. The upper limit ring and the lower limit ring are distributed on the upper and lower sides of the shaft hole.

[0009] Preferably, the upper end of the rear section of the connecting strip is provided with a receiving groove, the shaft hole is located at the bottom of the receiving groove, and the upper limit ring is accommodated in the receiving groove.

[0010] Preferably, the inner wall of the shaft hole is provided with two hemispherical grooves, the side of the connecting seat is provided with a mounting groove, a column and a compression spring, the compression spring is provided between the bottom of the mounting groove and the tail of the column, and the head of the column is fixedly provided with a ball head that extends into any one of the hemispherical grooves.

[0011] Preferably, the two hemispherical grooves are centrally symmetrically distributed.

[0012] Preferably, the upper end of the mounting groove extends through the upper surface of the connector.

[0013] Preferably, the upper surface of the button is provided with a positioning mark, and the upper surface of the gun shell is provided with a locking mark and an unlocking mark. When the positioning mark corresponds to the locking mark, the push rod is located directly above the electronic lock. When the positioning mark corresponds to the unlocking mark, the push rod is offset from the electronic lock.

[0014] Preferably, the mechanical lock further includes a return spring, a lower positioning post is fixedly provided on the inner bottom surface of the mounting cavity, an upper positioning post is fixedly provided on the lower end of the rear section of the connecting strip, and the return spring is sleeved on the lower positioning post and the upper positioning post.

[0015] Compared with the prior art, the advantages of this utility model are as follows: by changing the button to a rotatable form, rotating the button can position the push rod directly above the electronic lock or make the push rod offset from the electronic lock. When the push rod is directly above the electronic lock, the locking and unlocking of the button is controlled by the electronic lock. When the push rod is offset from the electronic lock, the push rod is not controlled by the electronic lock and is in an unlocked state, so that the user can unlock the mechanical lock and pull out the charging gun. It can be seen that this technical solution optimizes the unlocking mechanism and can complete emergency unlocking without the aid of tools, which is simple and efficient. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the mechanical lock in this utility model;

[0019] Figure 4 This is an exploded view of the mechanical lock in this utility model;

[0020] Figure 5 This is a schematic diagram of the electronic lock in this utility model;

[0021] Figure 6 This is a schematic diagram of the pressing part in this utility model;

[0022] Figure 7 for Figure 4 Enlarged view of point A in the middle;

[0023] Figure 8 This is a partial structural schematic diagram of the present invention.

[0024] In the diagram: 1. Gun casing; 11. Mounting cavity; 12. Rotating seat; 13. Opening; 14. Lower positioning post; 15. Locking mark; 16. Unlocking mark; 2. Mechanical lock; 21. Connecting bar; 211. Shaft hole; 2111. Hemispherical groove; 212. Upper positioning post; 213. Receiving groove; 22. Hook; 23. Button; 231. Pressing part; 2311. Screw hole; 2312. Upper limit ring; 232. Connecting seat; 2321. Through hole; 2322. Bolt; 2323. Lower limit ring; 2324. Mounting groove; 2325. Column; 23251. Ball head; 2326. Compression spring; 233. Positioning mark; 24. Push rod; 25. Return spring; 3. Electronic lock; 31. Housing; 32. Cam. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0026] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Example 1: As Figures 1 to 5As shown, a charging gun with an emergency unlocking function includes a gun housing 1, a mechanical lock 2, and an electronic lock 3. The gun housing 1 has a mounting cavity 11, and the electronic lock 3 is disposed within the mounting cavity 11. The mechanical lock 2 includes a connecting strip 21, a hook 22, and a button 23. The middle part of the connecting strip 21 is rotatably connected to the mounting cavity 11 via a rotating seat 12. The front section of the connecting strip 21 extends out of the mounting cavity 11 and is fixedly provided with the hook 22. The rear section of the connecting strip 21 is provided with a shaft hole 211, and the button 23 rotatably engages with the shaft hole 211. A push rod 24 is fixedly provided at the lower end of the button 23. By rotating the button 23, the push rod 24 is positioned directly above the electronic lock 3 or offset from the electronic lock 3. The mounting cavity 11 is located on the upper part of the gun housing 1, and the upper end of the gun housing 1 has an opening 13 communicating with the mounting cavity 11. The button 23 extends from the opening 13.

[0028] When the push rod 24 is directly above the electronic lock 3, the locking and unlocking of the button 23 is controlled by the electronic lock 3. When the push rod 24 is offset from the electronic lock 3, the push rod 24 is not controlled by the electronic lock 3 and is in the unlocked state, so that the user can unlock the mechanical lock 2 and pull out the charging gun.

[0029] It should be noted that the electronic lock 3 includes a housing 31, a motor lock motor, and a cam 32. The motor lock motor is housed within the housing 31, and its drive shaft is connected to the cam 32 to drive the cam 32 to rotate. The cam 32 corresponds to the push rod 24. When the cam 32 extends upward, it prevents the push rod 24 directly above it from moving downward, thus achieving the locking function. When the cam 32 rotates to other angles, it does not prevent the push rod 24 directly above it from moving downward, thus achieving the unlocking function.

[0030] Furthermore, the mechanical lock 2 also includes a reset spring 25. A lower positioning post 14 is fixedly provided on the inner bottom surface of the mounting cavity 11, and an upper positioning post 212 is fixedly provided on the lower end of the rear section of the connecting strip 21. The reset spring 25 is sleeved on the lower positioning post 14 and the upper positioning post 212 so that the mechanical lock 2 can be reset when the button 23 is not pressed.

[0031] Example 2: Figure 3 , Figure 4 and Figure 6 As shown, the rest of the parts are the same as in Embodiment 1, except that button 23 includes a pressing part 231 and a connecting seat 232. The connecting seat 232 is rotatably engaged with the shaft hole 211. The pressing part 231 is detachably disposed at the upper end of the connecting seat 232, and the push rod 24 is fixedly disposed at the lower end of the connecting seat 232. Specifically, the lower end of the pressing part 231 is provided with two screw holes 2311, and the connecting seat 232 is provided with two through holes 2321 and two bolts 2322. The bolts 2322 pass through the through holes 2321 and are threadedly connected to the screw holes 2311.

[0032] In this embodiment, the lower end of the pressing part 231 protrudes outward along the circumferential direction to form an upper limit ring 2312, and the lower end of the connecting seat 232 protrudes outward along the circumferential direction to form a lower limit ring 2323. The upper limit ring 2312 and the lower limit ring 2323 are distributed on the upper and lower sides of the shaft hole 211 to prevent the button 23 from moving up and down and to ensure that the button 23 can only rotate.

[0033] Furthermore, a receiving groove 213 is provided at the upper end of the rear section of the connecting strip 21, the shaft hole 211 is located at the bottom of the receiving groove 213, and the upper limit ring 2312 is accommodated in the receiving groove 213 to make the structure more compact.

[0034] Example 3: Figure 4 and Figure 7 As shown, the rest of the components are the same as in Embodiment 2, except that the inner wall of the shaft hole 211 is provided with two hemispherical grooves 2111, and the side of the connecting seat 232 is provided with a mounting groove 2324, a column 2325, and a compression spring 2326. The compression spring 2326 is located between the bottom of the mounting groove 2324 and the tail of the column 2325, and the head of the column 2325 is fixedly provided with a ball head 23251 that extends into either of the hemispherical grooves 2111. This structural design can prevent the button 23 from rotating freely without human control, and when the button 23 is rotated, the ball head 23251 will switch between the two hemispherical grooves 2111 to accurately rotate the button 23 to the specified angle.

[0035] In this embodiment, the two hemispherical grooves 2111 are centrally symmetrically distributed.

[0036] Furthermore, the upper end of the mounting groove 2324 extends through the upper end face of the connecting seat 232, which is easy to process and also easy to assemble the column 2325 and the compression spring 2326.

[0037] Example 4: Figure 3 , Figure 5 and Figure 8 As shown, the rest of the parts are the same as in Embodiment 1. The difference is that a positioning mark 233 is provided on the upper surface of button 23, and a locking mark 15 and an unlocking mark 16 are provided on the upper surface of gun shell 1. When the positioning mark 233 corresponds to the locking mark 15, the push rod 24 is located directly above the electronic lock 3. When the positioning mark 233 corresponds to the unlocking mark 16, the push rod 24 is offset from the electronic lock 3. The user can intuitively judge the current status and avoid misoperation.

[0038] It should be noted that both the lock symbol 15 and the unlock symbol 16 in the attached diagram are indicated by arrows. In actual use, Chinese and / or English explanations will also be provided, such as Locked and Unlocked, for greater clarity.

[0039] In practical applications, when the electronic lock 3 cannot be unlocked normally due to unexpected power failure or malfunction, the user can perform emergency unlocking by rotating the button 23, so that the ball head 23251 extends into another hemispherical groove 2111. At this time, the push rod 24 is misaligned with the electronic lock 3. Then, press the button 23 to disengage the hook 22 located at the front end of the connecting bar 21 from the vehicle's charging interface, and finally pull out the charging gun.

[0040] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the implementation of the present invention is not limited to the above-described manner. Any improvements made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, are all within the protection scope of the present invention.

Claims

1. A charging gun with an emergency unlocking function, comprising a gun housing (1), a mechanical lock (2), and an electronic lock (3), wherein the gun housing (1) has a mounting cavity (11), and the electronic lock (3) is disposed within the mounting cavity (11), characterized in that: The mechanical lock (2) includes a connecting bar (21), a hook (22), and a button (23). The middle part of the connecting bar (21) is rotatably connected to the mounting cavity (11) through a rotating seat (12). The front part of the connecting bar (21) extends out of the mounting cavity (11) and is fixedly provided with the hook (22). The rear part of the connecting bar (21) is provided with a shaft hole (211). The button (23) is rotatably engaged with the shaft hole (211). The lower end of the button (23) is fixedly provided with a push rod (24). By rotating the button (23), the push rod (24) is positioned directly above the electronic lock (3) or the push rod (24) is offset from the electronic lock (3).

2. A charging gun with emergency unlocking function according to claim 1, characterized in that: The button (23) includes a pressing part (231) and a connecting seat (232). The connecting seat (232) is rotatably engaged with the shaft hole (211). The pressing part (231) is detachably disposed at the upper end of the connecting seat (232). The push rod (24) is fixedly disposed at the lower end of the connecting seat (232).

3. A charging gun with emergency unlocking function according to claim 2, characterized in that: The lower end of the pressing part (231) protrudes outward along the circumferential direction to form an upper limit ring (2312), and the lower end of the connecting seat (232) protrudes outward along the circumferential direction to form a lower limit ring (2323). The upper limit ring (2312) and the lower limit ring (2323) are distributed on the upper and lower sides of the shaft hole (211).

4. A charging gun with emergency unlocking function according to claim 3, characterized in that: The upper end of the rear section of the connecting strip (21) is provided with a receiving groove (213), the shaft hole (211) is located at the bottom of the receiving groove (213), and the upper limit ring (2312) is accommodated in the receiving groove (213).

5. A charging gun with emergency unlocking function according to claim 2, characterized in that: The inner wall of the shaft hole (211) is provided with two hemispherical grooves (2111). The side of the connecting seat (232) is provided with a mounting groove (2324), a column (2325) and a compression spring (2326). The compression spring (2326) is located between the bottom of the mounting groove (2324) and the tail of the column (2325). The head of the column (2325) is fixedly provided with a ball head (23251) that extends into any one of the hemispherical grooves (2111).

6. A charging gun with emergency unlocking function according to claim 5, characterized in that: The two hemispherical grooves (2111) are centrally symmetrically distributed.

7. A charging gun with emergency unlocking function according to claim 5, characterized in that: The upper end of the mounting groove (2324) penetrates the upper surface of the connector (232).

8. A charging gun with emergency unlocking function according to claim 1, characterized in that: The button (23) has a positioning mark (233) on its upper surface, and the gun shell (1) has a locking mark (15) and an unlocking mark (16) on its upper surface. When the positioning mark (233) corresponds to the locking mark (15), the push rod (24) is located directly above the electronic lock (3). When the positioning mark (233) corresponds to the unlocking mark (16), the push rod (24) is offset from the electronic lock (3).

9. A charging gun with emergency unlocking function according to claim 1, characterized in that: The mechanical lock (2) also includes a reset spring (25). A lower positioning post (14) is fixedly provided on the inner bottom surface of the mounting cavity (11). An upper positioning post (212) is fixedly provided on the lower end of the rear section of the connecting strip (21). The reset spring (25) is sleeved on the lower positioning post (14) and the upper positioning post (212).

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