Electronic lock for charging gun and charging gun

Abstract

The charging gun comprises a charging gun body, a charging gun surface cover and a charging gun lock hook, a cavity for accommodating the electronic lock is formed in the charging gun body, and the electronic lock comprises an electronic lock shell, a rotating block, a motor, a signal switch, a mechanical switch, a PCB (printed circuit board), an unlocking block and an unlocking button. The electronic lock shell is fixed by the electronic lock surface cover and the electronic lock bottom cover through fasteners, and the motor drives the rotating block to rotate through the planetary gearbox, so that the unlocking block is driven to move transversely, and unlocking and locking are achieved. The unlocking button is located above the unlocking block and connected with the unlocking block through a spring, at least one sliding block is arranged on the unlocking button, and a sliding groove matched with the sliding block is formed in the unlocking block. In addition, the utility model further comprises an emergency unlocking button which is used for manual unlocking in emergency.

Description

Technical Field

[0001] The present invention relates to the technical field of practical charging guns, and more specifically to an electronic lock for a charging gun and a charging gun. Background Art

[0002] With the increasing popularity of electric vehicles, the demand for charging infrastructure is growing. As a key device connecting electric vehicles to charging stations, the use and importance of charging guns have increased significantly. To prevent accidental power outages or malicious unplugging of the charging gun during charging, charging guns are often designed with mechanical or electronic locking devices to ensure the stability and safety of the charging process.

[0003] Existing charging gun locking devices mainly include mechanical locking devices and electronic locking devices. Mechanical locks mainly rely on physical hooks or mechanical structures to complete locking. Although they have a simple structure and low cost, they are easily damaged by external forces during use, and the locking and unlocking processes are relatively cumbersome and lack intelligent control capabilities. Electronic locks control the locking and unlocking actions through motors or electromagnets. Compared with mechanical locks, electronic locks are more intelligent and can cooperate with charging pile systems to achieve remote control and status feedback. However, existing electronic locking devices still have many shortcomings. The mechanical structure of many electronic locks is relatively complex, which increases the manufacturing difficulty and volume, and is not suitable for installation in charging gun equipment in limited spaces. In the event of a power outage or system failure, existing electronic locks cannot be mechanically unlocked in an emergency, resulting in the inability to safely unplug the charging gun in an emergency, posing a potential safety hazard. Due to design problems, some electronic lock devices may not work properly in harsh environments (such as high temperature and humidity), affecting the service life and stability of the charging gun. Utility Model Content

[0004] The purpose of the utility model is to provide an electronic lock for a charging gun and a charging gun, so as to solve the problem that the mechanical structure of the electronic lock in the prior art is relatively complex and the charging gun cannot be safely pulled out in an emergency.

[0005] In order to solve the above problems, the electronic lock for the charging gun and the charging gun involved in this utility model adopt the following technical solutions:

[0006] An electronic lock for a charging gun, comprising an electronic lock housing, a rotating block, a motor, a signal switch, a mechanical switch, a PCB board, an unlocking block, and an unlocking button, wherein:

[0007] The electronic lock housing includes an electronic lock face cover and an electronic lock bottom cover, and the electronic lock face cover and the electronic lock bottom cover are fixed by fasteners;

[0008] The motor is provided with a planetary gearbox, and the rotating block is connected to the motor through the planetary gearbox. When the rotating block rotates, it drives the unlocking block to rotate horizontally and triggers the signal switch;

[0009] The unlocking button is located above the unlocking block and passes through the electronic lock surface cover, the unlocking block is formed with a mounting groove, a first spring is provided in the mounting groove, the upper end of the first spring is against the slider, and the lower end is against the unlocking block, the unlocking button is provided with at least one slider, the unlocking block is provided with a sliding groove for facilitating the sliding of the slider up and down, there is a gap between the lower surface of the slider and the upper surface of the unlocking block, and the mechanical switch is triggered when the unlocking button moves downward;

[0010] The mechanical switch is located on one side of the unlocking block and outputs a switch signal to the PCB board by contacting the unlocking button;

[0011] The signal switch is located on one side of the rotating block, and detects the position of the rotating block by contacting the rotating block and outputs a normally closed switch signal to the PCB board;

[0012] The PCB board is used to receive the switch signal of the mechanical switch and the normally closed switch signal of the signal switch, and drive the motor according to the signal and current power information.

[0013] Preferably, a connector is also included, and the motor, the signal switch, the mechanical switch and the connector are all electrically connected to the PCB board.

[0014] Preferably, an emergency unlocking button is further included, which is provided with a connecting rod, and a second spring is sleeved on the connecting rod. The emergency unlocking button is located on the other side of the rotating block and passes through the electronic lock surface cover, and is resisted by the rotating block through the second spring. The emergency unlocking button is used to push the rotating block to rotate.

[0015] The present utility model also provides a charging gun, based on the aforementioned electronic lock for the charging gun, comprising a charging gun body, a charging gun cover and a charging gun lock hook, wherein a cavity for accommodating the electronic lock for the charging gun is formed in the charging gun body, the middle part of the charging gun lock hook is connected to the charging gun body for limited rotation, the unlocking button abuts against the lower end of the rear side of the charging gun lock hook, the charging gun cover is used to close the cavity of the charging gun body, and the charging gun cover is provided with a button abutting against the upper end of the rear side of the charging gun lock hook.

[0016] The beneficial effects of the present invention are as follows: when the user inserts the charging gun, since the unlock button is against the hook of the charging gun, it is necessary to press the unlock button down to lift the hook. Pressing the unlock button down triggers the mechanical switch. After the charging gun hook is connected to the charging pile, the first spring in the unlocking block pushes the unlock button upward to reset the unlock button. At this time, the mechanical switch feeds back a switch signal to the PCB board. The PCB board detects that the power is insufficient and starts the motor. The motor drives the rotating block to rotate through the planetary gear box. The rotation of the rotating block drives the unlocking block to rotate horizontally. During the rotation process, the rotating block disengages from the signal switch and drives the unlocking block to rotate, so that the slider on the unlocking button and the slide groove on the unlocking block are staggered with each other, fixing the unlocking button in the locked position. The unlocking button cannot be pressed down, reaching a locked state. During the locking process, the signal switch will detect the position of the rotating block by disengaging from the rotating block, and feed back a locking signal to the PCB board to ensure that the electronic lock has entered a locked state.

[0017] When the PCB detects that the battery is fully charged and needs to be unlocked, the motor runs in reverse, driving the rotating block to rotate in the opposite direction through the planetary gearbox. The reverse rotation of the rotating block drives the unlocking block to move laterally. When the unlocking block moves, the first spring is compressed, causing the unlocking button to press down. The slider on the unlocking button and the slide groove on the unlocking block are located on the same vertical line, so that the unlocking button can be pressed to achieve the unlocking operation. At this time, the signal switch detects the contact between the rotating blocks and the rotating blocks, and feeds back an unlocking signal to the PCB board to confirm that the electronic lock has been unlocked. When the unlocking button is pressed, the mechanical switch is triggered, and the mechanical switch sends a switch signal to the PCB board. Since the light is fully charged at this time, the PCB board will not start the motor.

[0018] In the event of a power failure or system failure, the user can unlock the vehicle by pressing the emergency unlock button. This button drives the rotating block in the opposite direction via a connecting rod, which in turn moves the unlocking block, achieving the same mechanical unlocking process as electric unlocking.

[0019] This utility model uses the automatic locking and unlocking mechanism of the electronic lock to ensure that the charging gun will not be misoperated or unlocked without authorization during use, ensuring the safety of the charging process. It is especially suitable for high-power charging scenarios. The dual feedback design of the mechanical switch and the signal switch ensures that the locking and unlocking status of the electronic lock are monitored and fed back in real time, increasing the reliability of the device. The automatic locking and unlocking operation is driven by the motor. The user only needs to insert or remove the charging gun to complete the operation, without the need for manual locking or unlocking, which improves the user's operational convenience. Even in the event of a malfunction in the electronic system, the user can still unlock the device through the emergency unlock button, increasing the emergency reliability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments:

[0021] Figure 1 This is an exploded structural diagram of an electronic lock for a charging gun according to a preferred embodiment of the present invention;

[0022] Figure 2 This is the overall structural diagram of the electronic lock for the charging gun of the preferred embodiment of the utility model;

[0023] Figure 3 This is a coverless structural diagram of an electronic lock for a charging gun according to a preferred embodiment of the present invention;

[0024] Figure 4 This is an exploded structural diagram of a charging gun according to another preferred embodiment of the present invention. DETAILED DESCRIPTION

[0025] In order to make the technical objectives, technical solutions, and beneficial effects of the present invention more clear, the technical solutions of the present invention are further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. That is, the embodiments described herein are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in a variety of different configurations.

[0026] The electronic lock for the charging gun in the preferred embodiment of the utility model is as follows Figure 1 As shown, see Figure 2-3 , including an electronic lock housing 10, a rotating block 20, a motor 30, a signal switch 40, a mechanical switch 50, a PCB board 60, an unlocking block 70 and an unlocking button 80, wherein:

[0027] The electronic lock housing 10 includes an electronic lock face cover 11 and an electronic lock bottom cover 12, which are fixed by fasteners;

[0028] The motor 30 is provided with a planetary gearbox 31 , and the rotating block 20 is connected to the motor 31 through the planetary gearbox 31 . When the rotating block 20 rotates, it drives the unlocking block 70 to rotate horizontally and triggers the signal switch 40 ;

[0029] The unlocking button 80 is located above the unlocking block 70 and passes through the electronic lock cover 11. A mounting groove 72 is formed on the unlocking block 70. A first spring 71 is provided in the mounting groove 72. The first spring 71 is sleeved on the unlocking button 80. The upper end of the first spring 71 abuts against the slider 81, and the lower end abuts against the unlocking block 70. The unlocking button 80 is provided with at least one slider 81. The unlocking block 70 is provided with a sliding groove 73 for facilitating the sliding of the slider 81 up and down. There is a gap between the lower surface of the slider 81 and the upper surface of the unlocking block 70. When the unlocking button 80 moves downward, the mechanical switch 50 is triggered.

[0030] The mechanical switch 50 is located on one side of the unlocking block 70 and outputs a switch signal to the PCB board 60 by contacting the unlocking button 80;

[0031] The signal switch 40 is located on one side of the rotating block 20. By contacting the rotating block 20, it detects the position of the rotating block 20 and outputs a normally closed switch signal to the PCB board 60.

[0032] The PCB board 60 is used to receive the switch signal of the mechanical switch 50 and the normally closed switch signal of the signal switch 40, and drive the motor 30 according to the signal and the current power information.

[0033] When the user inserts the charging gun, since the unlock button is against the hook of the charging gun, it is necessary to press the unlock button down to lift the hook. Pressing the unlock button down triggers the mechanical switch. After the charging gun hook is connected to the charging pile, the first spring in the unlock block pushes the unlock button upward to reset the unlock button. At this time, the mechanical switch feeds back the switch signal to the PCB board. The PCB board detects that the power is insufficient and starts the motor. The motor drives the rotating block to rotate through the planetary gearbox. The rotation of the rotating block drives the unlock block to rotate horizontally. During the rotation process, the rotating block disengages from the signal switch and drives the unlock block to rotate, so that the slider on the unlock button and the slide groove on the unlock block are staggered, fixing the unlock button in the locked position. The unlock button cannot be pressed down, reaching the locked state. During the locking process, the signal switch will detect the position of the rotating block by disengaging from the rotating block, and feed back the locking signal to the PCB board to ensure that the electronic lock has entered the locked state.

[0034] When the PCB board detects that the battery is fully charged and needs to be unlocked, the motor runs in reverse, and the planetary gearbox drives the rotating block to rotate in reverse. The reverse rotation of the rotating block drives the unlocking block to move laterally. When the unlocking block moves, the first spring is compressed, causing the unlocking button to be pressed down. The slider on the unlocking button and the slide groove on the unlocking block are located on the same vertical line, so that the unlocking button can be pressed to achieve the unlocking operation. At this time, the signal switch detects the contact between the rotating block and the rotating block, and feeds back the unlocking signal to the PCB board to confirm that the electronic lock has been unlocked. When the unlocking button is pressed, the mechanical switch is triggered, and the mechanical switch sends a switch signal to the PCB board. Since it has been disconnected from the charging pile at this time, the PCB board will not start the motor.

[0035] This utility model uses an automatic locking and unlocking mechanism to prevent misuse or unauthorized unlocking of the charging gun during use, ensuring the safety of the charging process. It is particularly suitable for high-power charging scenarios. The dual feedback design of the mechanical switch and the signal switch ensures real-time monitoring and feedback of the lock and unlock status of the electronic lock, increasing the reliability of the device. The motor drives the automatic locking and unlocking operation, and the user only needs to insert or remove the charging gun to complete the operation, without manual locking or unlocking, which improves the user's operational convenience.

[0036] like Figure 1 As shown, the electronic lock also includes an emergency unlock button 90, which is equipped with a connecting rod 91. A second spring 92 is sleeved on the connecting rod 91. The emergency unlock button 90 is located on the other side of the rotating block 20 and passes through the electronic lock cover 11. The second spring 92 abuts against the rotating block 20. The emergency unlock button 90 is used to rotate the rotating block 20. In the event of a power failure or system failure, the user can unlock the door by pressing the emergency unlock button 90. The emergency unlock button 90 drives the rotating block 20 to rotate in the opposite direction via the connecting rod 91. This also drives the unlocking block 70 to move, thus achieving the same mechanical unlocking process as electric unlocking.

[0037] The design of the emergency unlock button allows the device to be mechanically unlocked even when a power or electronic system failure occurs, greatly improving the safety and reliability of the device and making it suitable for a variety of complex charging environments.

[0038] Also included is an embodiment of a charging gun, based on the previous embodiment, such as Figure 4 As shown, it includes a charging gun body 100, a charging gun cover 101 and a charging gun lock hook 102. A cavity for accommodating an electronic lock for the charging gun is formed in the charging gun body 100. The middle part of the charging gun lock hook 102 is connected to the charging gun body 100 for limited rotation. The unlocking button 80 abuts against the lower rear end of the charging gun lock hook 102. The charging gun cover 101 is used to close the cavity of the charging gun body 100. The charging gun cover 101 is provided with a button that abuts against the upper rear end of the charging gun lock hook 102.

[0039] A cavity is formed within the charging gun body to accommodate the electronic lock, effectively utilizing the limited space within the gun. By integrating the electronic lock within the gun body, the exposed external components are effectively reduced, making the overall structure of the charging gun more compact, easier to carry and operate, and enhancing its aesthetics. The charging gun's lock hook is connected to the middle of the gun body through a limited rotation, ensuring stability and reliability during the locking and unlocking processes. This limited rotation design prevents locking failure due to excessive rotation of the lock hook, improving locking accuracy and ensuring a tight fit when inserted into the charging station. The unlock button 80 is located at the lower rear end of the charging gun's lock hook 102, allowing the user to easily press it to unlock the charging gun during use. This design simplifies the user experience, allowing the user to easily unlock the charging gun by simply pressing the unlock button, significantly improving the user experience. The unlock button 80 abuts against the lower rear end of the charging gun's lock hook 102. When the unlock button 80 is locked, the charging gun's lock hook 102 is also restricted from rotating.

[0040] In summary, the utility model provides an electronic lock system suitable for charging guns, which integrates the automatic locking and unlocking functions driven by a motor, and realizes efficient and stable locking operation through the cooperation of the planetary gearbox and the rotating block. In addition, the signal switch is combined with the mechanical switch to detect and feedback the locking and unlocking status in real time, ensuring the intelligence and safety of the system operation. At the same time, the solution also specially designs an emergency unlocking button, which can be manually unlocked in the event of power failure or system failure, enhancing the emergency handling capability of the equipment. The overall structure is compact, easy to operate, has good protection and high adaptability, and is particularly suitable for applications in fields such as electric vehicle charging guns that require high reliability and convenience. The utility model effectively solves the problems of complex structure, lack of emergency unlocking function and insufficient intelligence in the prior art, and has broad application prospects.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate and not to limit the technical solutions of the present invention. Any equivalent replacement of the present invention and any modification or partial replacement that does not depart from the spirit and scope of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. An electronic lock for a charging gun, characterized in that: The electronic lock comprises an electronic lock housing (10), a rotating block (20), a motor (30), a signal switch (40), a mechanical switch (50), a PCB board (60), an unlocking block (70) and an unlocking button (80), wherein: The electronic lock housing (10) comprises an electronic lock face cover (11) and an electronic lock bottom cover (12), and the electronic lock face cover (11) and the electronic lock bottom cover (12) are fixed by fasteners; The motor (30) is provided with a planetary gearbox (31), and the rotating block (20) is connected to the motor (30) via the planetary gearbox (31). When the rotating block (20) rotates, the unlocking block (70) is driven to rotate horizontally and trigger the signal switch (40); The unlocking button (80) is located above the unlocking block (70) and passes through the electronic lock cover (11); a mounting groove (72) is formed on the unlocking block (70); a first spring (71) is provided in the mounting groove (72); the first spring (71) is sleeved on the unlocking button (80), and the lower end of the first spring is against the unlocking block (70); at least one slider (81) is provided on the unlocking button (80); the unlocking block (70) is provided with a sliding groove (73) for facilitating the slider (81) to slide up and down; a gap exists between the lower surface of the slider (81) and the upper surface of the unlocking block (70); and the unlocking button (80) triggers the mechanical switch (50) when it moves downward; The mechanical switch (50) is located on one side of the unlocking block (70) and outputs a switch signal to the PCB board (60) by contacting the unlocking button (80); The signal switch (40) is located on one side of the rotating block (20), detects the position of the rotating block (20) by contacting the rotating block (20) and outputs a normally closed switch signal to the PCB board (60); The PCB board (60) is used to receive the switch signal of the mechanical switch (50) and the normally closed switch signal of the signal switch (40), and drive the motor (30) according to the signal and current power information.

2. The electronic lock for the charging gun according to claim 1, characterized in that: It also includes a connector (100), and the motor (30), the signal switch (40), the mechanical switch (50) and the connector (100) are all electrically connected to the PCB board (60).

3. The electronic lock for a charging gun according to claim 1, characterized in that: The electronic lock further comprises an emergency unlocking button (90) arranged transversely, wherein a connecting rod (91) is provided on the emergency unlocking button (90), and a second spring (92) is sleeved on the connecting rod (91). The emergency unlocking button (90) is located on the other side of the rotating block (20) and passes through the electronic lock surface cover (11), and is abutted against the rotating block (20) by the second spring (92). The emergency unlocking button (90) is used to push the rotating block (20) to rotate.

4. A charging gun, based on the electronic lock for a charging gun according to any one of claims 1 to 3, characterized in that: The invention comprises a charging gun body (100), a charging gun cover (101) and a charging gun lock hook (102); a cavity for accommodating an electronic lock for the charging gun is formed in the charging gun body (100); the middle portion of the charging gun lock hook (102) is connected to the charging gun body (100) for limited rotation; the unlocking button (80) abuts against the lower end of the rear side of the charging gun lock hook (102); the charging gun cover (101) is used to close the cavity of the charging gun body (100); and the charging gun cover (101) is provided with a button abutting against the upper end of the rear side of the charging gun lock hook (102).

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