Locking mechanism and intelligent battery changing cabinet

Abstract

The utility model discloses a locking mechanism and an intelligent battery changing cabinet, which can enable a latch hook and a battery to be stably and reliably matched so as to enable the battery to be stably and reliably locked and unlocked, the locking mechanism comprises a machine frame, the latch hook and a driver, the latch hook is rotatably arranged on the machine frame through a rotating shaft, a first end of the latch hook is connected with an elastic piece, and the elastic piece is arranged close to the rotating shaft. The elastic piece is configured to enable the lock hook to have a trend of moving towards the locking position all the time; the second end of the lock hook is in transmission connection with the driver, the driver is configured to be capable of driving the lock hook to move towards the unlocking position, and the end portion of the second end of the lock hook and the hook portion are both arranged away from the rotating shaft. A first stress point of the latch hook subjected to the acting force of the elastic piece, a second stress point of the latch hook subjected to the acting force of the driver and a third stress point of the hook part in contact with the battery are not on the same straight line with the axis of the rotating shaft, and the force arms corresponding to the second stress point and the third stress point are greater than the force arm corresponding to the first stress point; the force arm corresponding to the second force bearing point is larger than the force arm corresponding to the third force bearing point.

Description

Technical Field

[0001] This utility model relates to the field of intelligent battery swapping cabinet technology, specifically to a locking mechanism and an intelligent battery swapping cabinet. Background Technology

[0002] Electric vehicles, powered by batteries and driven by electric motors, have greatly facilitated people's daily lives. However, traditional charging methods are difficult and inefficient. Therefore, to meet the demand for efficient travel, intelligent battery swapping stations have emerged. Electric vehicles are equipped with removable batteries. When the electric vehicle runs out of power, the intelligent battery swapping station can be used to directly replace the depleted battery with a fully charged one. The depleted battery is then charged within the station. The battery swapping process is simple and efficient, greatly facilitating travel. To ensure battery safety, these intelligent battery swapping stations incorporate battery locks within the battery compartment. In these technologies, the battery has a locking slot at its rear. As the battery is pushed into the compartment, its rear end contacts the lock's hook and continuously pushes the hook until the battery is fully seated, at which point the hook engages in the locking slot, thus locking the battery. However, the locking hook in these technologies is not always stable or reliable in its engagement with the battery locking slot, resulting in an inability to reliably lock the battery. Summary of the Invention

[0003] To address the problems in the prior art, this utility model provides a locking mechanism and an intelligent battery swapping cabinet, which enables the lock hook to cooperate stably and reliably with the battery, thereby enabling the battery to be locked and unlocked stably and reliably.

[0004] To achieve the above objectives, this utility model provides a locking mechanism, including a frame and a locking hook and a driver disposed on the frame. The locking hook is rotatably mounted on the frame via a pivot, and has a locked position and an unlocked position. A first end of the locking hook is connected to an elastic element, which is disposed close to the pivot. The elastic element is configured to ensure that the locking hook always tends to move towards the locked position. A second end of the locking hook is drively connected to the driver, which is configured to drive the locking hook to move towards the unlocked position. The locking hook is provided with a hook portion that can engage or disengage with a battery. Both the second end of the locking hook and the hook portion are located away from the rotating shaft. When the battery enters the battery compartment, the battery will contact the hook portion and drive the locking hook to rotate. The point where the locking hook is subjected to the force of the elastic element is the first force point, the point where the locking hook is subjected to the force of the driver is the second force point, and the point where the hook portion contacts the battery is the third force point. The first, second, and third force points are not on the same straight line as the axis of the rotating shaft, and the lever arm corresponding to the second and third force points is greater than the lever arm corresponding to the first force point. The lever arm corresponding to the second force point is greater than the lever arm corresponding to the third force point.

[0005] Furthermore, the driver includes a motor and a cam that are driven together, the motor being mounted on the frame and the cam being driven together with the second end of the locking hook.

[0006] Furthermore, the flange of the cam is provided with a drive shaft, and the second end of the locking hook is provided with a mating groove. The shape of the mating groove is adapted to the movement trajectory of the drive shaft. The drive shaft is inserted into the mating groove. The motor can drive the drive shaft to move in the mating groove through the cam, and drive the locking hook to move to the unlocking position when the drive shaft abuts against the mating groove.

[0007] Furthermore, a drive wheel is provided at the end of the drive shaft, and an outwardly folded mating part is provided at the mating groove. When the lock hook moves to the unlocking position under the action of the motor, the drive wheel abuts against the mating part.

[0008] Furthermore, a detection part is provided at the end of the second end of the locking hook, and a first detection element is provided on the frame. The detection part can cooperate with the first detection element to detect that the locking hook is in the locked position. A second detection element is provided on the frame, and the second detection element can cooperate with the cam to detect the position of the cam.

[0009] Furthermore, the first end of the locking hook is provided with a connecting part, the connecting part is hook-shaped, and the elastic element includes a tension spring, one end of the tension spring is connected to the connecting part, and the other end of the tension spring is connected to the frame.

[0010] Furthermore, the first end of the locking hook is provided with an emergency unlocking part, and pressing the emergency unlocking part can drive the locking hook to rotate.

[0011] Furthermore, the frame also includes two spaced-apart support frames, the rotating shaft is supported on the two support frames, and the locking hook is installed in the gap between the two support frames.

[0012] Furthermore, a locking groove is provided near the tail of the battery, and the hook can engage or disengage with the locking groove to lock or unlock the battery. The contact points between the hook and the tail of the battery are both designed with rounded transitions.

[0013] This utility model also provides an intelligent battery swapping cabinet, including a cabinet body, the cabinet body is provided with multiple battery compartments, each battery compartment is provided with a compartment door, each compartment door is provided with a door lock, and each battery compartment is provided with one of the locking mechanisms described above.

[0014] Compared with the prior art, in the locking mechanism of this utility model, the locking hook is rotatably mounted on the frame via a rotating shaft. The first end of the locking hook is connected to an elastic element near the rotating shaft, which ensures the locking hook always tends to move towards the locked position. The second end of the locking hook is connected to a driver, which drives the locking hook to overcome the elastic force of the elastic element and move towards the unlocked position. The hook portion of the locking hook locks or unlocks the battery by engaging or disengaging with it. Both the second end and the hook portion are located away from the rotating shaft. Furthermore, the first point of force application on the locking hook due to the elastic element, the second point of force application due to the driver, and the third point of force application where the hook portion contacts the battery are not on the same straight line as the rotating shaft axis. This extends the lever arm of the force application points, making the lever arms corresponding to the second and third force application points greater than those of the first. The lever arm corresponding to the first force point is greater than that corresponding to the second force point. Due to the lever effect, when the battery is pushed into the battery compartment, only a small force is needed to easily rotate the locking hook against the elastic force of the elastic element after the battery contacts the hook. The locking hook's action is reliable. Once the battery is fully inserted, the hook and battery reliably engage and lock under the action of the elastic element. When unlocking the battery, the driver only needs a small driving force to rotate the locking hook against the elastic force of the elastic element, and the hook can generate a large displacement, thus reliably and stably separating and unlocking the hook from the battery. Therefore, this invention, through the unique design of the locking hook, enables the locking hook and battery to reliably and stably engage and separate, thereby ensuring stable and reliable locking and unlocking of the battery and improving the stability and reliability of the locking mechanism.

[0015] Furthermore, the actuator employs a motor and a cam, utilizing the cam to generate intermittent motion to drive the lock hook to the unlocked position. This design is simple in structure and low in cost. The cam uses a drive shaft on its flange and a mating groove with the lock hook to achieve intermittent drive of the lock hook. The shape of the mating groove is adapted to the movement trajectory of the drive shaft, ensuring that the drive shaft only abuts against the end of the mating groove during unlocking, thus improving the reliable transmission of the drive.

[0016] Furthermore, by utilizing the outward-folding mating part at the mating groove and the drive wheel of the drive shaft, when the lock hook moves to the unlocking position under the action of the motor, the drive wheel abuts against the mating part and rolls along the mating part, using rolling friction to improve the smoothness of the mating, thereby increasing the contact area between the drive wheel and the mating part, improving service life, and enhancing the reliability of power transmission.

[0017] Furthermore, the first detection element is used to detect whether the locking hook is in the locked position, and the second detection element is used to detect the position of the cam. The first and second detection elements can feed back corresponding electrical signals to the control system of the intelligent battery swapping cabinet. The control system makes judgments based on the corresponding electrical signals and controls the motor and other components to perform corresponding actions, thereby improving control accuracy.

[0018] Furthermore, the rotating shaft is mounted using two spaced-apart support frames, and the locking hook is installed in the gap between the two support frames. The two support frames can provide guidance for the rotation of the locking hook and improve the stability of the locking hook rotation.

[0019] This utility model's intelligent battery swapping cabinet, when the battery is pushed into the battery compartment, the tail of the battery will first contact the hook. At this time, the hook is locked in the position under the action of the elastic element. As the battery continues to be pushed in, the battery will push the hook to rotate until the battery is pushed into place and reliably connected to the charging module in the battery compartment. At this time, the hook will reach the battery locking slot position. Under the action of the elastic element, the hook will fall into the locking slot, thereby locking the battery. When unlocking the battery, the driver will drive the hook to move to the unlock position, and the hook can disengage from the locking slot. This utility model, through the unique design of the hook, can make the hook and the battery stably and reliably cooperate and separate, thereby making the battery stably and reliably locked and unlocked, improving the stability and reliability of the locking mechanism. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the battery compartment structure of this utility model;

[0021] Figure 2 This is a cross-sectional view of the battery compartment structure of this utility model;

[0022] Figure 3 yes Figure 2 A magnified view of a section at point A in the middle;

[0023] Figure 4 This is a schematic diagram of the locking mechanism of this utility model. Figure 1 ;

[0024] Figure 5 This is a schematic diagram of the locking mechanism of this utility model. Figure 2 The locking hook is in the unlocked position;

[0025] Figure 6 This is a partial structural schematic diagram of the locking mechanism of this utility model;

[0026] Figure 7 This is a schematic diagram of the locking hook of this utility model;

[0027] Among them, 1 is the battery compartment, 2 is the compartment door, 3 is the door lock, 4 is the locking mechanism, 5 is the battery, 51 is the lock groove, 6 is the lock hook, 61 is the hook part, 62 is the connecting part, 63 is the mating groove, 64 is the mating part, 65 is the detection part, 66 is the emergency unlocking part, 7 is the rotating shaft, 8 is the elastic element, 9 is the motor, 10 is the cam, 11 is the frame, 12 is the support frame, 13 is the first detection component, 14 is the second detection component, 15 is the drive shaft, and 16 is the drive wheel. Detailed Implementation

[0028] The present invention will be further explained and described below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] This utility model provides a locking mechanism 4, see details below. Figure 2 , Figure 4 , Figure 5 , Figure 6 and Figure 7 The device includes a frame 11, a locking hook 6 and a driver mounted on the frame 11. The locking hook 6 is rotatably mounted on the frame 11 via a rotating shaft 7. The locking hook 6 has a locked position and an unlocked position. The first end of the locking hook 6 is connected to an elastic element 8, which is located close to the rotating shaft 7. The elastic element 8 is configured to ensure that the locking hook 6 always tends to move towards the locked position. The second end of the locking hook 6 is drively connected to the driver, which is configured to drive the locking hook 6 to move towards the unlocked position. The locking hook 6 is provided with a hook portion 61 that can engage or disengage with the battery 5. The second end of the locking hook 6 and the hook portion 61... All are located far from the rotating shaft 7. When the battery 5 enters the battery compartment 1, the battery 5 will contact the hook 61 and drive the locking hook 6 to rotate. The point where the locking hook 6 is subjected to the force of the elastic element 8 is the first force point, the point where the locking hook 6 is subjected to the force of the driver is the second force point, and the point where the hook 61 contacts the battery 5 is the third force point. The first force point, the second force point, and the third force point are not on the same straight line as the axis of the rotating shaft 7. The lever arm corresponding to the second force point and the third force point is greater than the lever arm corresponding to the first force point. The lever arm corresponding to the second force point is greater than the lever arm corresponding to the third force point.

[0030] In the locking mechanism 4 of this utility model, the locking hook 6 is rotatably mounted on the frame 11 via a rotating shaft 7. The first end of the locking hook 6 is connected to an elastic element 8 near the rotating shaft 7, which ensures the locking hook 6 always tends to move towards the locked position. The second end of the locking hook 6 is connected to a driver, which drives the locking hook 6 to overcome the elastic force of the elastic element 8 and move towards the unlocked position. The hook portion 61 of the locking hook 6 locks or unlocks the battery 5 by engaging or disengaging with it. Both the second end and the hook portion 61 of the locking hook 6 are located away from the rotating shaft 7. Furthermore, the first point of contact between the locking hook 6 and the elastic element 8, the second point of contact between the locking hook 6 and the driver, and the third point of contact between the hook portion 61 and the battery 5 are not on the same straight line as the axis of the rotating shaft 7. This extends the lever arm of the points of contact, making the lever arms corresponding to the second and third points of contact greater than those corresponding to the first point of contact. The lever arm corresponding to the second force point is greater than that corresponding to the third force point. Due to the lever effect, when the battery 5 is pushed into the battery compartment 1, only a small force is needed to easily rotate the locking hook 6 against the elastic force of the elastic element 8 after the battery 5 contacts the hook 61. The locking hook 6 operates reliably until the battery 5 is fully inserted, at which point the hook 61 and the battery 5 reliably engage and lock under the action of the elastic element 8. When unlocking the battery 5, the driver only needs a small driving force to rotate the locking hook 6 against the elastic force of the elastic element 8, and the hook 61 can generate a large displacement, thus enabling the hook 61 to reliably and stably separate and unlock from the battery 5. Therefore, through the unique design of the locking hook 6, this invention enables the locking hook 6 and the battery 5 to stably and reliably engage and separate, thereby ensuring stable and reliable locking and unlocking of the battery 5 and improving the stability and reliability of the locking mechanism 4.

[0031] The actuator of this invention includes a motor 9 and a cam 10 connected by a transmission connection. The motor 9 is mounted on the frame 11, and the cam 10 is connected by a transmission connection to the second end of the locking hook 6. The actuator uses the motor 9 and the cam 10 to generate intermittent motion, thereby driving the locking hook 6 to move towards the unlocked position. It has a simple structure and low cost. The actuator can also be other types of drive structures, such as electric push rods, hydraulic / pneumatic cylinders, etc., as long as the drive method can satisfy the requirement of rotating the locking hook 6.

[0032] Specifically, the flange of the cam 10 is provided with a drive shaft 15, and the second end of the locking hook 6 is provided with a mating groove 63. The shape of the mating groove 63 is adapted to the movement trajectory of the drive shaft 15. The drive shaft 15 is inserted into the mating groove 63, and the motor 9 can drive the drive shaft 15 to move within the mating groove 63 through the cam 10. When the drive shaft 15 abuts against the mating groove 63, it drives the locking hook 6 to move towards the unlocked position. The mating groove 63 is roughly square in shape with an arc-shaped bottom outline, and the arc shape matches the movement trajectory of the drive shaft 15. The cam 10 uses the drive shaft 15 on the flange and the mating groove 63 of the locking hook 6 to achieve intermittent driving of the locking hook 6. The shape of the mating groove 63 is adapted to the movement trajectory of the drive shaft 15, so that the drive shaft 15 abuts against the end of the mating groove 63 only when unlocking, which improves the reliable transmission of the drive.

[0033] Preferably, a drive wheel 16 is provided at the end of the drive shaft 15, and an outwardly folded mating part 64 is provided at the mating groove 63. When the locking hook 6 moves to the unlocking position under the action of the motor 9, the drive wheel 16 abuts against the mating part 64. Utilizing the outwardly folded mating part 64 at the mating groove 63 and the drive wheel 16 of the drive shaft 15, when the locking hook 6 moves to the unlocking position under the action of the motor 9, the drive wheel 16 abuts against the mating part 64 and rolls along the mating part 64, employing rolling friction to improve the smoothness of the fit. This increases the contact area between the drive wheel 16 and the mating part 64, improves service life, and enhances the reliability of power transmission.

[0034] Preferably, a detection part 65 is provided at the second end of the locking hook 6, and a first detection element 13 is provided on the frame 11. The detection part 65 can cooperate with the first detection element 13 to detect that the locking hook 6 is in the locked position. The frame 11 is provided with a second detection element 14, which can cooperate with the cam 10 to detect the position of the cam 10. The first detection element 13 is used to detect whether the locking hook 6 is in the locked position, and the second detection element 14 is used to detect the position of the cam 10. The first detection element 13 and the second detection element 14 can feed back corresponding electrical signals to the control system of the intelligent battery swapping cabinet. The control system judges according to the corresponding electrical signals and controls the motor 9 and other components to perform corresponding actions, thereby improving the control accuracy. The first detection element 13 and the second detection element 14 of this utility model are microswitches. The microswitches are electrically connected to the control system. By the detection part 65 and the cam 10 respectively touching the electrical signals generated by the microswitches, the precise control of starting and stopping the motor 9 is achieved. Of course, in other embodiments, the first detection element 13 and the second detection element 14 can also be photoelectric sensors or other forms, which will not be described in detail here.

[0035] Specifically, the first end of the locking hook 6 is provided with a connecting part 62, which is hook-shaped. The elastic element 8 includes a tension spring, one end of which is connected to the connecting part 62, and the other end of which is connected to the frame 11. The tension spring is hung using the hook-shaped connecting part 62 for easy installation. The elastic element 8 provides the locking hook 6 with an elastic force for automatic locking. When the battery 5 is pushed into place, under the action of the elastic force, the hook part 61 of the locking hook 6 automatically moves to the locked position, thereby locking the battery 5. Alternatively, after the battery 5 is unlocked and removed, the motor 9 drives the cam 10 to return to the initial state, and the locking hook 6 returns to its initial position, i.e., the locked position, under the action of the elastic element 8. No driver is required, making the power supply simple, reliable, and inexpensive. The elastic element 8 can also be other types of elastic elements, such as compression springs or torsion springs, which will not be elaborated here.

[0036] Preferably, the first end of the locking hook 6 is provided with an emergency unlocking part 66, which can rotate the locking hook 6 by pressing the emergency unlocking part 66. The emergency unlocking part 66 can be used to unlock the battery 5 in case of power failure or other emergency.

[0037] Preferably, the frame 11 further includes two spaced-apart support frames 12, with the rotating shaft 7 supported on the two support frames 12 and the locking hook 6 installed in the gap between the two support frames 12. By using the two spaced-apart support frames 12 to mount the rotating shaft 7 and the locking hook 6 installed in the gap between the two support frames 12, the two support frames 12 can provide guidance for the rotation of the locking hook 6, improving the stability of the rotation of the locking hook 6.

[0038] Specifically, see Figure 3 A locking groove 51 is provided near the tail of the battery 5. The hook 61 can engage or disengage with the locking groove 51 to lock or unlock the battery 5. The contact points between the hook 61 and the tail of the battery 5 are both designed with rounded transitions. The rounded transitions improve the smoothness of the hook 61 when it contacts and moves with the tail of the battery 5, reduce wear during contact, and improve the stability of the engagement.

[0039] The battery locking mechanism 4 of this utility model is located at the top rear side of the battery compartment 1. When the hook 61 engages with the locking groove 51, the hook 61 is stably positioned in the locking groove 51 under the action of the elastic member 8. At this time, the inner side of the hook 61 near the rotating shaft 7 will press against the inner wall of the locking groove 51. The line connecting the axis of the rotating shaft 7 and the point of pressure is obliquely upward, that is, the point of pressure is higher than the axis of the rotating shaft 7. This results in the hook 61 being subjected to a downward pressure in the vertical direction, thereby enabling the hook 61 to be stably and reliably positioned in the locking groove 51. It is not easy to fall off in the locked state, thus improving the stability of the battery 5 locking engagement.

[0040] A smart battery swapping cabinet includes a cabinet body with multiple battery compartments 1. (See attached image) Figure 1Each battery compartment 1 is equipped with a door 2, and each door 2 is equipped with a lock 3. The lock 3 can be an electromagnetic lock, and the battery compartment 1 is equipped with one of the above-mentioned locking mechanisms 4. When battery 5 is pushed into battery compartment 1, the tail of battery 5 will first contact hook 61. At this time, hook 6 is locked under the action of elastic member 8. As battery 5 continues to be pushed in, battery 5 will push hook 6 to rotate until battery 5 is pushed into place. Battery compartment 1 is also equipped with a battery presence detection switch. At this time, the battery presence detection switch can detect that battery 5 is in place. After battery 5 is reliably connected to the charging module in battery compartment 1, hook 61 will reach the locking groove 51 of battery 5. Under the action of elastic member 8, hook 61 falls into locking groove 51, thereby locking battery 5. When unlocking battery 5, the driver drives hook 6 to move to the unlock position, and hook 61 can disengage from locking groove 51. Through the unique design of hook 6, this utility model can make hook 6 and battery 5 cooperate and separate stably and reliably, thereby making battery 5 stably and reliably locked and unlocked, improving the stability and reliability of locking mechanism 4.

[0041] The battery locking mechanism 4 of this utility model is located at the top rear side of the battery compartment 1. Of course, it can also be located at the bottom rear side, etc., depending on the position of the locking groove 51 of the battery 5. Alternatively, the battery locking mechanism 4 can be located at both the top and bottom. The specific choice depends on the actual needs.

[0042] The battery compartment 1 of this invention has a bottom plate that is slightly inclined downwards from front to back. The bottom plate can also be equipped with multiple rollers, which facilitates the insertion of the battery 5. A certain amount of gravity compresses and pushes the hook 61, causing the locking hook 6 to rotate, making it convenient and effortless. Furthermore, when the cabinet shakes, the battery will not slip out and cause damage to the battery 5 or personal injury, making it safer and more convenient. The surface of the intelligent battery swapping cabinet can also be equipped with an interactive screen, allowing users to directly interact with the battery swapping process, display battery status information, and display advertisements. The surface of the intelligent battery swapping cabinet can also be equipped with QR codes, allowing users to scan the codes to log in to the interactive interface using smartphones or other user terminals. The top of the intelligent battery swapping cabinet can be equipped with a lightbox for nighttime illumination, and the bottom is equipped with casters for easy movement. The intelligent battery swapping cabinet also includes a smoke sensor, water level monitor, temperature and humidity sensor, camera, speaker, 4G / 5G module, WiFi module, and Bluetooth antenna, etc. The related settings of the intelligent battery swapping cabinet are similar to existing technologies and will not be described in detail here.

[0043] The working principle of this intelligent battery swapping cabinet is described in detail below:

[0044] After the user interacts with the smart battery swapping cabinet by scanning a code, the battery swapping process begins. The system controls the door lock 3 of any empty battery compartment 1 to open, and the corresponding compartment door 2 to unlock. The system prompts the user to place the battery 5 to be swapped. The user pushes the battery 5 to open the compartment door 2, and the battery 5 enters the battery compartment 1. Under the action of the inclined base plate and bottom rollers, the battery 5 slides backward easily under the action of gravity. When the battery 5 touches the hook 61, it will give the locking hook 6 an upward force, pushing the locking hook 6 to rotate upward. As the battery 5 moves backward, it triggers the battery presence detection switch. After the battery presence detection switch is triggered, the system begins to read the battery communication. The hook 61 of the locking hook 6 will fall into the locking groove 51 of the battery 5, thereby locking the battery 5. After the hook 61 is completely in the locking groove 51, the detection part 65 of the locking hook 6 will trigger the micro switch of the first detection element 13, and feed back an electrical signal to the system that the battery 5 has been locked. At the same time, the system begins to read the battery data. When the system reads the battery data, the system prompts that the battery has been successfully returned and starts charging.

[0045] After the system reads the data of the returned old battery, it sends a command to the other battery compartment 1, which is filled with a fully charged battery 5, to open the corresponding door lock 3. At the same time, it controls the motor 9 to start and drive the cam 10 to rotate. The cam 10 drives the lock hook 6 to move to the unlock position. When the cam 10 rotates, it triggers the micro switch of the second detection element 14, and the system controls the motor 9 to stop rotating. The system prompts the user to take the battery 5. During the removal of the battery 5, the battery presence detection switch will be disconnected. After the battery presence detection is disconnected, the system controls the motor 9 to reverse, and the cam 10 will disengage from the lock hook 6. As a result, the lock hook 6 falls down under the action of the elastic element 8, returning to the initial locked position. The detection part 65 of the lock hook 6 will trigger the micro switch of the first detection element 13, and send an electrical signal to the system to control the motor 9 to stop rotating. After the battery 5 is completely removed, the compartment door 2 falls and triggers the micro switch. The system sends a command, and the electric bolt lock of the door lock 3 locks the compartment door 2 again, returning to the initial state. The system prompts that the battery replacement is complete.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A locking mechanism, characterized in that, The device includes a frame (11), a locking hook (6) disposed on the frame (11), and a driver. The locking hook (6) is rotatably disposed on the frame (11) via a pivot (7). The locking hook (6) has a locked position and an unlocked position. A first end of the locking hook (6) is connected to an elastic element (8), which is disposed close to the pivot (7). The elastic element (8) is configured to make the locking hook (6) always tend to move towards the locked position. A second end of the locking hook (6) is drively connected to the driver, which is configured to drive the locking hook (6) to move towards the unlocked position. The locking hook (6) is provided with a hook portion (61) that can engage or disengage with a battery (5). The second end and the hook (61) are both located away from the rotating shaft (7). When the battery (5) enters the battery compartment (1), the battery (5) will contact the hook (61) and drive the locking hook (6) to rotate. The point where the locking hook (6) is subjected to the force of the elastic element (8) is the first force point, the point where the locking hook (6) is subjected to the force of the driver is the second force point, and the point where the hook (61) contacts the battery (5) is the third force point. The first force point, the second force point, and the third force point are not on the same straight line as the axis of the rotating shaft (7). The lever arm corresponding to the second force point and the third force point is greater than the lever arm corresponding to the first force point. The lever arm corresponding to the second force point is greater than the lever arm corresponding to the third force point.

2. The locking mechanism according to claim 1, characterized in that, The driver includes a motor (9) and a cam (10) that are connected in a drive connection. The motor (9) is mounted on the frame (11), and the cam (10) is connected in a drive connection to the second end of the locking hook (6).

3. A locking mechanism according to claim 2, characterized in that, The flange of the cam (10) is provided with a drive shaft (15), and the second end of the locking hook (6) is provided with a mating groove (63). The shape of the mating groove (63) is adapted to the movement trajectory of the drive shaft (15). The drive shaft (15) is inserted into the mating groove (63). The motor (9) can drive the drive shaft (15) to move in the mating groove (63) through the cam (10), and drive the locking hook (6) to move to the unlocked position when the drive shaft (15) abuts against the mating groove (63).

4. A locking mechanism according to claim 3, characterized in that, The end of the drive shaft (15) is provided with a drive wheel (16), and the mating groove (63) is provided with an outwardly folded mating part (64). When the lock hook (6) moves to the unlocking position under the action of the motor (9), the drive wheel (16) abuts against the mating part (64).

5. A locking mechanism according to claim 2, characterized in that, The second end of the locking hook (6) is provided with a detection part (65), the frame (11) is provided with a first detection element (13), the detection part (65) can cooperate with the first detection element (13) to detect that the locking hook (6) is in the locked position; the frame (11) is provided with a second detection element (14), the second detection element (14) can cooperate with the cam (10) to detect the position of the cam (10).

6. A locking mechanism according to any one of claims 1 to 5, characterized in that, The first end of the locking hook (6) is provided with a connecting part (62), which is hook-shaped. The elastic element (8) includes a tension spring, one end of which is connected to the connecting part (62), and the other end of which is connected to the frame (11).

7. A locking mechanism according to any one of claims 1 to 5, characterized in that, An emergency unlocking part (66) is provided at the end of the first end of the locking hook (6). Pressing the emergency unlocking part (66) can drive the locking hook (6) to rotate.

8. A locking mechanism according to any one of claims 1 to 5, characterized in that, The frame (11) also includes two spaced-apart support frames (12), the rotating shaft (7) is supported on the two support frames (12), and the locking hook (6) is installed in the gap between the two support frames (12).

9. A locking mechanism according to any one of claims 1 to 5, characterized in that, The battery (5) is provided with a locking groove (51) near the tail. The hook (61) can cooperate with or separate from the locking groove (51) to lock or unlock the battery (5). The contact positions between the hook (61) and the tail of the battery (5) are both designed as arc transitions.

10. An intelligent battery swapping cabinet, characterized in that, The device includes a cabinet with multiple battery compartments (1), each battery compartment (1) having a corresponding door (2), each door (2) having a corresponding lock (3), and each battery compartment (1) having a locking mechanism as described in any one of claims 1 to 9.

Images