Battery replacing equipment and battery replacing station

Abstract

The utility model discloses a battery replacing device and a battery replacing station, and the battery replacing device comprises a fixedly-arranged supporting frame, a battery replacing main body which is arranged between the supporting frames and can be lifted and moved, and a battery replacing device which is arranged in the battery replacing main body and can be telescopically moved towards the exterior of the supporting frames. The battery dismounting operation of the battery replacing vehicle is realized through the telescopic movement of the battery replacing device and the lifting movement of the battery replacing main body; the battery replacing body comprises a compartment body, and a sliding mechanism is arranged between the battery replacing device and the compartment body so that the battery replacing device can move relative to the compartment body in the direction perpendicular to the telescopic direction. According to the battery replacing equipment, the battery replacing device extends out to enter the position below the chassis of the vehicle, the situation that the whole battery replacing equipment enters the position below the chassis and occupies space is avoided, the battery replacing operation is easier, more convenient and faster, and the position of the battery replacing device can be adjusted in the direction parallel to the vehicle body of the battery replacing vehicle through the sliding mechanism; it is ensured that the battery replacing equipment can be aligned with the battery pack below the battery replacing vehicle to achieve the battery replacing process.

Description

[0001] This application claims the priority of Chinese Patent Application No. 202410380046.4 with a filing date of March 29, 2024. This application incorporates the entire text of the above-mentioned patent application by reference. Technical Field

[0002] This application relates to the technical field of electric vehicle battery swapping, and particularly to a battery swapping device and a battery swapping station. Background Art

[0003] With the development and popularization of new energy vehicles, the battery pack quick swapping technology has also developed rapidly. For large vehicles, such as heavy trucks or light trucks, the vehicle body and the cargo weight are very large, resulting in a high demand for the battery pack capacity of large vehicles. Only a sufficiently large capacity of electric energy can support the use of large vehicles.

[0004] In the traditional battery swapping mode, large vehicles in the new energy series fix a relatively large battery container on the vehicle's girder through overhead lifting. The battery container is set adjacent to the driver's cab, which brings great safety hazards to the driver and the vehicle itself during driving and overhead battery swapping; moreover, if the battery fails, it will directly cause personal injury to the driver. In addition, the overhead lifting method has high requirements for the site of the battery swapping station. The battery swapping station needs to have a sufficiently large area to execute the transfer of the lifting equipment for the battery and the storage of the battery, resulting in a high construction cost.

[0005] Therefore, for large vehicles, there is an urgent need for a safer, more reliable, and easier-to-popularize battery swapping mode. For example, adopting the chassis-type battery swapping mode of passenger cars. In the chassis-type battery swapping mode, it is necessary to control the entire battery swapping device to move to the battery swapping position below the battery swapping vehicle, and then perform the lifting operation and the operation of disassembling or installing the battery pack to complete the entire battery swapping process. During this battery swapping process, due to the limited space below the body of the battery swapping vehicle, especially for heavy truck battery swapping vehicles, it is difficult to drive and park on a platform higher than the ground, making the space below the body of the battery swapping vehicle more restricted. If a battery swapping device is used for battery swapping, during the battery swapping process, the battery swapping device needs to carry the depleted battery or the fully charged battery back and forth to move in and out of the bottom of the battery swapping vehicle. To meet the power demand of heavy truck battery swapping vehicles, the battery packs are very large, which greatly limits the available space of the battery swapping device. At this time, if the available space of the battery swapping device is to be increased, the battery swapping device can only move in the space sunken from the ground. Due to the multiple travels of the heavy truck battery swapping vehicle before and after battery swapping, this will inevitably lead to an unreliable ground structure in this way, making it difficult to bear the multiple loads of the battery swapping vehicle, reducing the service life of the equipment structure, and also posing a safety hazard to the battery swapping vehicle.

[0006] In addition, a battery swapping station usually has a battery swapping platform, which provides a parking and swapping space for battery swapping vehicles. The battery swapping vehicle can drive into the platform from one end and then park at the corresponding battery swapping position. At this position, the battery swapping equipment can perform the battery pack replacement operation. However, most battery swapping vehicles are driven into the platform by drivers relying on experience and visual estimation. Therefore, most of the time, the vehicle cannot be accurately parked at the swapping position, often resulting in the vehicle body being more forward or backward relative to the swapping position, causing a position deviation between the battery pack and the swapping equipment. The driver needs to adjust the vehicle body position multiple times, which affects the normal swapping process of the equipment and reduces the swapping efficiency. To solve the above problems, for passenger cars with relatively light weights, a translation mechanism is usually set on the battery swapping platform. The battery swapping vehicle is parked on the translation mechanism, and the vehicle is adjusted forward and backward by the translation mechanism until the requirements of the swapping position are met. However, for large and heavy battery swapping vehicles such as light trucks and heavy trucks, the cost of setting up a translation mechanism on the battery swapping platform to adjust the vehicle is too high and the adjustment difficulty is relatively large.

[0007] It can be seen that there are many drawbacks in the existing technology, which need to be further improved. Summary of the Invention

[0008] The present application provides a battery swapping device and a battery swapping station. The battery disassembly and assembly operation of the battery swapping vehicle is realized through the telescopic movement of the swapping device and the lifting movement of the swapping main body. The swapping device and the swapping main body have the functions of battery disassembly, installation, and battery transportation, which can ensure the rapid and safe replacement of the battery pack, improve the swapping efficiency, avoid occupying the vehicle bottom space caused by the whole battery swapping equipment entering the bottom of the vehicle, and can also adjust the position of the swapping device along the direction parallel to the vehicle body of the battery swapping vehicle through the sliding mechanism to ensure that the swapping device can be aligned with the battery pack under the vehicle to realize the swapping process, solving at least one aspect of the technical problems in the background technology.

[0009] The technical solution adopted in the present application is as follows:

[0010] A battery swapping device includes: a fixedly arranged support frame, a swapping main body arranged between the support frames and capable of lifting and moving, and a swapping device arranged inside the swapping main body and capable of telescopic movement towards the outside of the support frame. The battery disassembly and assembly operation of the battery swapping vehicle is realized through the telescopic movement of the swapping device and the lifting movement of the swapping main body; the swapping main body includes a box body, and a sliding mechanism is arranged between the swapping device and the box body to enable the swapping device to move relative to the box body along a direction perpendicular to the telescopic direction.

[0011] In this technical solution, the battery swapping main body can move up and down on the support frame to adjust the height of the battery swapping device. When it is necessary to remove the depleted battery from the battery swapping vehicle or install the fully charged battery into the battery swapping vehicle, the battery swapping device is adjusted to the height position corresponding to the chassis of the battery swapping vehicle by the up and down movement of the battery swapping main body relative to the support frame, and then the battery swapping device is extended, so as to realize the battery disassembly and assembly operation on the battery swapping vehicle. In this application, the battery swapping device is arranged in the compartment of the battery swapping main body, so that the battery swapping device extends out of the compartment to perform the operation of taking and placing the battery pack. When actually taking and placing the battery pack, it only needs the battery swapping device to extend out of the compartment and then enter under the chassis of the battery swapping vehicle, avoiding the whole battery swapping equipment entering under the chassis of the battery swapping vehicle and occupying the vehicle bottom space. Even when the battery swapping vehicle is swapping batteries on a battery swapping platform flush with the ground, more operating space can be provided under its vehicle body for the disassembly or installation of the battery pack, making the battery swapping operation simpler and faster, and avoiding the reduction of service life and potential safety hazards caused by digging a pit under the battery swapping platform to create a ground sinking space. In addition, the telescopic direction of the battery swapping device is the direction for realizing the battery pack disassembly and assembly operation. Therefore, the telescopic direction can be defined as the direction perpendicular to the vehicle body of the battery swapping vehicle, realizing battery swapping from the side of the battery swapping vehicle, which not only improves the battery swapping efficiency, but also makes the battery swapping operation simpler and faster. On this basis, a sliding mechanism is arranged between the battery swapping device and the compartment, and the battery swapping device is moved relative to the compartment along the direction perpendicular to the telescopic direction by the sliding mechanism. Then the direction perpendicular to the telescopic direction is the direction parallel to the vehicle body of the battery swapping vehicle. When the driver parks the battery swapping vehicle in front of or behind the battery swapping position by experience and visual estimation and there is a deviation, the position of the battery swapping device can be adjusted along the direction parallel to the vehicle body of the battery swapping vehicle through the sliding mechanism, forming a way for the battery swapping device to independently and more quickly find the battery pack on the battery swapping vehicle, replacing the existing way that the driver adjusts the vehicle body position multiple times to find the battery swapping position. Moreover, it is easier to adjust the position of the battery swapping device in the direction parallel to the vehicle body of the battery swapping vehicle, which can be realized through the sliding mechanism. The structure is simple, which helps to reduce the battery swapping difficulty, save the cost of the battery swapping station and improve the battery swapping efficiency.

[0012] Preferably, the battery swapping device includes a telescopic mechanism arranged in the compartment and a battery swapping mechanism arranged on the telescopic mechanism, and the sliding mechanism is arranged between the telescopic mechanism and the battery swapping mechanism, so that the battery swapping mechanism moves on the telescopic mechanism along the direction perpendicular to the telescopic direction.

[0013] In this technical solution, the battery swapping device realizes telescopic movement relative to the box body through a telescopic mechanism. The telescopic mechanism drives the battery swapping mechanism to extend out of the box body and under the battery swapping vehicle, so as to remove the discharged battery from the battery swapping vehicle, and drives the battery swapping mechanism to retract into the box body through the contraction of the telescopic mechanism, so as to place the discharged battery on the battery swapping mechanism at the battery storage device in the battery swapping station for charging. Compared with the sliding mechanism being arranged under the telescopic mechanism and driving the telescopic mechanism and the battery swapping mechanism to move together in a direction perpendicular to the telescopic direction, in this application, the sliding mechanism is arranged between the telescopic mechanism and the battery swapping mechanism, so that the sliding mechanism only drives the battery swapping mechanism to move on the telescopic mechanism in a direction perpendicular to the telescopic direction. During the movement, the telescopic mechanism is in a relatively fixed state. The fewer moving parts, the more conducive to improving the accuracy of movement, and it also helps to optimize the power structure and save energy consumption. Moreover, the sliding mechanism can be arranged not under the telescopic mechanism, but in the space inside the telescopic mechanism and the battery swapping mechanism. This arrangement helps to reduce the overall height of the battery swapping device, makes the battery swapping device more flattened, and then it occupies less height space during the battery swapping process, brings less pressure to the battery swapping space under the battery swapping vehicle. Therefore, it has a higher adaptability to battery swapping vehicles with different chassis heights, and also provides more operating space for the disassembly or installation of the battery pack, making the battery swapping operation more simple and fast.

[0014] Preferably, the battery swapping mechanism is arranged on the telescopic mechanism through a bracket; along the telescopic direction of the telescopic mechanism, the bracket includes two cross beams arranged side by side, the cross beams are perpendicular to the telescopic direction of the telescopic mechanism, and the two cross beams are connected by two longitudinal beams, and the battery swapping mechanism is arranged in the space surrounded by the two cross beams and the two longitudinal beams.

[0015] In this technical solution, the bracket is set as a rectangular frame structure formed by splicing two cross beams and two longitudinal beams. The structure is simple, which facilitates the installation of the battery swapping mechanism. On the basis of ensuring the structural strength and bearing capacity, it helps to lighten the weight of the bracket, reduces the overall weight of the battery swapping device, and thus helps to reduce the burden on the telescopic mechanism. Moreover, arranging the battery swapping mechanism in the space surrounded by the two cross beams and the two longitudinal beams enables the battery swapping mechanism to utilize the space below the bracket. Compared with the overall height of the battery swapping mechanism being higher than the bracket, it also helps to reduce the overall height of the battery swapping mechanism, makes the battery swapping device more flattened, and improves the adaptability to battery swapping vehicles with different chassis heights.

[0016] Preferably, hanging lugs are connected to both ends of the cross beam, the cross beam sinks relative to the hanging lugs, and the hanging lugs are fixedly hung on the top of the telescopic mechanism.

[0017] In this technical solution, hanging lugs are connected to both ends of the cross beam, which improves the convenience of installing the bracket on the telescopic mechanism. Especially for the fork-type telescopic mechanism, the hanging lugs at both ends can be directly hung and fixed on the tops of the two forks. Moreover, compared with setting the bracket as a flat structure or a convex structure, in this solution, the cross beam sinks relative to the hanging lugs, making the whole cross beam lower than the hanging lugs and thus lower than the top surface of the telescopic mechanism. And the battery swapping mechanism is arranged in the space surrounded by the two cross beams and the two longitudinal beams, which also helps to reduce the height of the battery swapping mechanism on the telescopic mechanism.

[0018] Preferably, the battery swapping mechanism is mounted on the two cross beams; the sliding mechanism includes a sliding drive motor and a gear-rack mechanism. The gear of the gear-rack mechanism is in transmission connection with the output shaft of the sliding drive motor, and the rack of the gear-rack mechanism is mounted on the cross beam.

[0019] In this technical solution, the sliding mechanism includes a sliding drive motor and a gear-rack mechanism, and the reliability of the gear-rack mechanism transmission can be used to improve the stability and accuracy of the sliding mechanism driving the battery swapping mechanism during movement. The rack of the gear-rack mechanism is mounted on the cross beam. When the sliding drive motor operates, the gear meshes and moves along the rack, thereby driving the sliding mechanism to move.

[0020] Preferably, the gear of the gear-rack mechanism includes a first driving gear and a first driven gear. The first driving gear is in transmission connection with the output shaft of the sliding drive motor, and the first driven gear meshes with the first driving gear and the rack respectively, so as to drive the battery swapping mechanism to move through the sliding drive motor.

[0021] In this technical solution, compared with the way of realizing transmission by setting a single gear between the sliding drive motor and the rack, the sliding drive motor realizes transmission with the rack through the first driving gear and the first driven gear, which helps to appropriately reduce the size of the gear-rack mechanism, reduce the installation space it occupies, and is beneficial to the compact, miniaturized and flattened structure of the battery swapping mechanism.

[0022] Preferably, there are two racks and two first driven gears respectively. The two racks are respectively arranged on the inner side walls of the two cross beams. The two first driven gears are in transmission connection with the sliding drive motor through a synchronous shaft. The synchronous shaft is connected to the battery swapping mechanism, and the sliding drive motor is connected above the inner rack.

[0023] In this technical solution, two first driven gears are connected by a synchronizing shaft, and the synchronizing shaft is connected to the battery swapping mechanism. When the sliding drive motor drives the first driving gear on one side to rotate, through the transmission of the first driven gear meshing with the first driving gear and the synchronizing shaft, the first driven gears and the rack on both sides operate synchronously. The first driven gears on both sides drive the battery swapping mechanism to move together at both ends of the battery swapping mechanism, making the force on the battery swapping mechanism more balanced and the moving stroke more stable and reliable. The two first driven gears are driven by the synchronizing shaft, and the synchronizing shaft occupies a small height space, which helps to reduce the height of the battery swapping mechanism.

[0024] Preferably, the battery swapping mechanism includes a support plate disposed in the sunken space of the bracket and a battery tray connected to the inside of the support plate. The support plate is provided with a sunken groove, and the battery tray is floatingly disposed above the sunken groove through an elastic member. The gear of the gear-rack mechanism is connected to the support plate to drive the battery swapping mechanism to move.

[0025] In this technical solution, the support plate is disposed in the sunken space of the bracket, and other components of the battery swapping mechanism can be integrally installed on the support plate. The sliding drive motor is fixedly connected to the support plate to drive the battery swapping mechanism to move. Therefore, when the sliding drive motor drives a component of the support plate to move, the battery swapping mechanism can be driven to move as a whole through the support plate, optimizing the transmission structure and also helping to improve the stability of the moving stroke of the battery swapping mechanism. The support plate is provided with a sunken groove, and the battery tray is floatingly disposed above the sunken groove through an elastic member, reducing the overall height of the battery tray on the support plate, making the overall thickness of the battery swapping mechanism smaller, more flattened, occupying less battery swapping space in height, and further improving the adaptability to battery swapping vehicles with different chassis heights. The elastic member on the support plate enables the battery tray to have a floating characteristic, which allows the battery tray to adapt to the shapes and states of different battery swapping vehicle chassis, maintain contact with the bottom of the vehicle, and thus achieve stable support of the battery pack, further improving the stability and safety during the battery swapping process.

[0026] Preferably, the support plate includes hanging portions at both ends and a supporting portion connecting the hanging portions at both ends. The supporting portion is sunk as a whole lower than the hanging portions to form the sunken groove, and the hanging portions are respectively hung on the two cross beams.

[0027] In this technical solution, a hanging part is provided at both ends of the pallet, which improves the convenience of installing the pallet on the bracket, and the hanging parts at both ends can be directly hung on the crossbeams at both ends of the bracket. Moreover, a sliding drive motor and other structures can also be installed on the hanging part located on the inner side to ensure that the sliding drive motor is close to the rack located on the crossbeam, so that the sliding drive motor and the gear rack mechanism can be transmitted at a close distance, thereby improving the compactness of the structure. Moreover, when the sliding drive motor is arranged on the hanging part on the inner side of the pallet, it is located on the inner side of the battery tray as a whole. The battery exchange mechanism only needs to extend the battery tray under the battery exchange vehicle for battery exchange, and the sliding drive motor does not need to extend under the vehicle. It will not interfere with the body of the battery exchange vehicle on the outside of the vehicle body, thereby avoiding occupying the space under the vehicle body.

[0028] Preferably, the support plate is provided with at least one group of unloading drive mechanisms for driving the battery tray to move along the telescopic direction, the unloading drive mechanism is connected to a transmission plate, the transmission plate is arranged in the sinking groove, the elastic member is arranged on the top surface of the transmission plate, and the unloading drive mechanism drives the battery tray to move via the transmission plate to achieve locking and unlocking of the battery pack.

[0029] In this technical solution, the loading and unloading drive mechanism drives the battery tray to move through the transmission plate to achieve locking and unlocking of the battery pack, so that the battery swap mechanism can unlock or lock the battery pack by itself under the battery swap vehicle. The telescopic mechanism is only used to enter and exit under the vehicle body, and the locking and unlocking of the battery pack is achieved by the loading and unloading drive mechanism extending into the bottom of the vehicle body, which optimizes the source of power. When the battery pack is locked and unlocked by the loading and unloading drive mechanism, the telescopic mechanism is in a stationary state, and the loading and unloading drive mechanism only needs to drive the battery tray to move horizontally to unlock the battery pack, making the locking and unlocking process more stable and more accurate. The setting of the transmission plate not only facilitates the loading and unloading drive mechanism to drive the battery tray to move, but also facilitates the setting of multiple elastic members between the transmission plate and the battery tray, thereby improving the stability of the battery tray floating up and down.

[0030] Preferably, the unloading drive mechanism includes an unloading drive motor arranged on the hanging part on the inner side of the support plate and a transmission mechanism connected between the unloading drive motor and the transmission plate, the transmission mechanism includes a gear mechanism and a screw-nut moving pair, the output shaft of the unloading drive motor, the gear mechanism and the screw of the screw-nut moving pair are connected in sequence, and the nut of the screw-nut moving pair is connected to the transmission plate.

[0031] In this technical solution, the unloading drive mechanism drives the transmission plate to move through the transmission of the gear mechanism and the lead screw nut motion pair. The reliability of the transmission of the gear mechanism and the lead screw nut motion pair can be used to improve the stability and accuracy of the unloading drive mechanism in driving the transmission plate to move, optimize the battery pack locking and unlocking process, and enable the battery pack to be locked and unlocked smoothly. The unloading drive motor is arranged on the hanging part on the inner side of the support plate, and is located on the inner side of the battery tray as a whole. The battery swapping mechanism only needs to extend the battery tray under the battery swapping vehicle to swap the battery. The unloading drive motor does not need to extend under the vehicle. It runs on the outside of the vehicle body without interfering with the body of the battery swapping vehicle, avoiding occupying the space under the vehicle body. The unloading drive mechanism only needs to extend the lead screw and nut under the transmission plate to realize transmission. The lead screw and nut occupy a small height space, which helps to reduce the height of the transmission plate and the battery tray on the transmission plate.

[0032] Preferably, the gear mechanism comprises a second driving gear and a second driven gear meshing with each other, the second driving gear is drivingly connected to the output shaft of the assembly and disassembly drive motor, and the second driven gear is drivingly connected to the lead screw.

[0033] In the present technical solution, compared with the method of setting a gear between the unloading drive motor and the lead screw to achieve transmission, the unloading drive motor achieves transmission through the second driving gear and the second driven gear and the lead screw, which helps to appropriately reduce the size of the gear mechanism and reduce the installation space it occupies, which is beneficial to the compact, miniaturized and flat structure of the battery replacement mechanism.

[0034] Preferably, two groups of the unloading drive mechanisms are provided on the support plate; along the direction perpendicular to the telescopic direction, the two groups of the unloading drive mechanisms are arranged on both sides of the sliding mechanism.

[0035] In this technical solution, two sets of unloading and loading drive mechanisms synchronously drive the battery tray to move on both sides of the pallet, and each of the two sets of unloading and loading drive mechanisms corresponds to a transmission plate. The two transmission plates support the battery tray together, with a large support surface, high support stability for the battery pack, and a more balanced force on the battery tray. The two sets of unloading and loading drive mechanisms drive the battery tray to move more stably and reliably. The two sets of unloading and loading drive mechanisms are arranged on both sides of the sliding mechanism, making full use of the installation space on the pallet, balancing the force on the pallet, and improving the structural stability.

[0036] Preferably, a first guide mechanism is provided between the hanging portion and the cross beam, the first guide mechanism includes a first guide rail provided on the cross beam and a first slider provided on the hanging portion; and / or, a second guide mechanism is provided between the support plate and the transmission plate, the second guide mechanism includes a second guide rail provided on the support plate and a second slider provided on the transmission plate.

[0037] In this technical solution, the first guiding mechanism guides the movement of the power swapping mechanism driven by the sliding drive motor along the direction perpendicular to the telescopic direction, improving the smoothness of the overall movement of the power swapping mechanism and reducing mechanism jamming; the second guiding mechanism guides the movement of the transmission plate and the battery tray driven by the unloading and loading drive motor along the telescopic direction, improving the smoothness of the movement of the battery tray, reducing jamming, and improving the smoothness of locking and unlocking of the battery pack.

[0038] Preferably, the battery tray includes a battery bearing portion and a strengthening portion. The battery bearing portion extends horizontally, and the strengthening portion is provided at one end of the battery bearing portion close to the support frame and extends upward, making the overall battery tray an L-shaped structure.

[0039] In this technical solution, the battery bearing portion extends horizontally and can be used to stably carry the battery pack. The strengthening portion extends upward, making the overall battery tray an L-shaped structure. The L-shaped structure has higher strength and stability compared to the flat structure, stronger bearing capacity, and helps to extend the service life of the battery tray.

[0040] Preferably, the battery bearing portion is provided with battery positioning pins, which are used to cooperate with the positioning holes on the battery pack to achieve the positioning of the battery pack on the battery tray, so as to drive the battery pack to move synchronously when locking and unlocking the battery pack.

[0041] In this technical solution, the positioning pins provided on the battery bearing portion can ensure the correct position of the battery pack during the power swapping process, prevent the battery pack from shifting during the transfer process and the locking and unlocking process, thereby improving the accuracy and safety of power swapping. In addition, through the cooperation of the battery positioning pins and the battery pack, a positioning and clamping effect is generated on the battery pack, so that the battery tray can drive the battery pack to move synchronously, and the battery pack can also better withstand the unlocking force, improving the stability of battery unlocking.

[0042] Preferably, along the direction perpendicular to the telescopic direction, a plurality of mounting holes are spaced on the battery bearing portion, and the battery positioning pins are detachably mounted in any one or any plurality of the plurality of mounting holes.

[0043] In this technical solution, spare mounting holes for adjusting the position of the battery positioning pins can be reserved among the plurality of mounting holes. The battery positioning pins are detachable, and the battery positioning pins can be adjusted and installed in the mounting holes at the best position according to the position of the battery pack during the actual power swapping process to ensure the effective cooperation between the battery positioning pins and the positioning holes on the battery pack.

[0044] Preferably, the power swapping mechanism further includes a plurality of unlocking pins that can be lifted and penetrated through the battery bearing portion, and a lifting drive mechanism fixed to the bottom surface of the battery bearing portion and used to drive the unlocking pins to lift and lower.

[0045] In this technical solution, the unlocking pin can be driven to move up and down by a lifting drive mechanism. Therefore, the movement of the unlocking pin for the unlocking and locking process of the battery pack on the battery swapping vehicle can be achieved by the lifting drive mechanism. Therefore, the up and down movement of the unlocking pin can be independent of the up and down movement of the battery swapping body. The up and down movement of the battery swapping body is used to adjust the height position corresponding to the chassis of the battery swapping vehicle. After adjustment, the telescopic mechanism drives the battery swapping mechanism to extend under the battery swapping vehicle, and then the lifting drive mechanism drives the unlocking pin to unlock and lock. During the unlocking and locking process, the battery swapping body and the battery tray are in a relatively fixed state. The fewer moving components, the more conducive to improving the accuracy of the up and down movement of the unlocking pin, enhancing the reliability of unlocking and locking, thereby improving the safety and efficiency of the battery swapping process, increasing the flexibility of the battery swapping equipment, and making the replacement process of the battery pack more efficient and safe. The setting of multiple unlocking pins can match the technology of setting multiple battery pack locking mechanisms on the battery swapping vehicle to achieve synchronous unlocking and locking of the battery pack locking mechanisms.

[0046] Preferably, along the vertical direction of the telescopic direction, two of the unlocking pins are provided at each end of the battery carrying part; the two unlocking pins located at the same end of the battery carrying part are driven to move up and down synchronously by one of the lifting drive mechanisms.

[0047] In this technical solution, the unlocking pins at both ends of the battery carrying part can correspond to different levels of unlocking and locking respectively. For example, the unlocking pins at one end correspond to primary unlocking and locking, and the unlocking pins at the other end correspond to secondary unlocking and locking. The primary unlocking and locking and the secondary unlocking and locking can be completed synchronously. The two unlocking pins located at the same end of the battery carrying part are driven to move up and down synchronously by one lifting drive mechanism, which simplifies the drive structure and improves the synchronization of unlocking and locking.

[0048] Preferably, the two unlocking pins located at the same end of the battery carrying part are arranged at intervals along the telescopic direction; the lifting drive mechanism includes an electric push rod, a connecting rod, and transmission rods corresponding to the two unlocking pins one by one. The connecting rod is connected to the electric push rod, and both ends of the transmission rod are hinged to the connecting rod and the unlocking pin respectively. The electric push rod drives the two unlocking pins to move up and down by driving the connecting rod to translate along the telescopic direction and the transmission of the transmission rod.

[0049] In this technical solution, when the electric push rod drives the connecting rod to translate, the connecting rod drives all the transmission rods to rotate relative to the connecting rod, so that the transmission rod drives the unlocking pin to move up and down, making the up and down movement of the unlocking pin stable and reliable, and improving the unlocking and locking efficiency.

[0050] Preferably, an installation frame corresponding to the lifting drive mechanism is provided at the bottom of the battery carrier. The electric push rod is installed in the installation frame and drives the connecting rod to translate in the installation frame along the telescopic direction. The installation frame is provided with a first guiding structure for guiding the translation of the connecting rod and a second guiding structure for guiding the lifting movement of the unlocking pin.

[0051] In this technical solution, the installation frame is installed at the bottom of the battery carrier, serving as the bearing structure of the lifting drive mechanism, improving the portability of the assembly of the lifting drive mechanism, and enabling the lifting drive mechanism to lift and lower with the battery tray. The first guiding structure guides the translation of the connecting rod, making the connecting rod translate stably and smoothly. The second guiding structure guides the lifting movement of the unlocking pin, making the unlocking pin lift and lower stably and smoothly.

[0052] Preferably, the battery swapping device further includes a battery detection unit located below the battery carrier. The battery carrier is provided with a detection hole, and the battery detection unit detects the presence or absence status information of the battery pack on the battery tray through the detection hole.

[0053] In this technical solution, it is possible to detect the presence or absence status information of the battery pack on the battery tray to ensure the stable and orderly progress of the battery swapping process. It can also transmit the presence or absence status information of the battery pack on the battery tray to the control unit of the battery swapping device in a practical manner to monitor the battery swapping process and perform timely maintenance in case of a failure.

[0054] A battery swapping station provided by the present application includes a battery swapping channel for accommodating the battery swapping of electric vehicles, and further includes the battery swapping device as described above. Along the vertical direction of the driving direction of the electric vehicle in the battery swapping channel, the battery swapping device is provided on at least one side of the battery swapping channel.

[0055] In this technical solution, since the battery swapping station adopts the above battery swapping device, it can ensure the rapid and safe replacement of the battery pack, improve the battery swapping efficiency, avoid occupying the space at the bottom of the vehicle and the space in the battery compartment caused by the entire battery swapping device entering the bottom of the electric vehicle and the battery compartment, and realize the optimization of the entire battery swapping process.

[0056] Due to the adoption of the above technical solution, the technical effects achieved by this application are as follows: The battery swapping main body can move up and down on the support frame to adjust the height of the battery swapping device. When it is necessary to disassemble the depleted battery from the battery swapping vehicle or install the fully charged battery onto the battery swapping vehicle, the battery swapping device is adjusted to a height position corresponding to the chassis of the battery swapping vehicle by the up and down movement of the battery swapping main body relative to the support frame, and then the battery swapping device is extended, so as to realize the battery disassembly and assembly operation on the battery swapping vehicle. In this application, the battery swapping device is arranged inside the battery swapping main body, so that the battery swapping device extends out of the battery swapping main body to perform the operation of taking and placing the battery pack. When actually taking and placing the battery pack, it only needs the battery swapping device to extend out of the battery swapping main body and then enter under the chassis of the battery swapping vehicle, avoiding the overall battery swapping equipment entering under the chassis of the battery swapping vehicle and occupying the vehicle bottom space. Even when the battery swapping vehicle is swapping batteries on a battery swapping platform flush with the ground, more operation space can be provided for the disassembly or installation of the battery pack under its vehicle body, making the battery swapping operation simpler and faster, and avoiding the reduction of service life and potential safety hazards caused by digging a sunken space under the battery swapping platform. In addition, the telescopic direction of the battery swapping device is the direction for realizing the battery pack disassembly and assembly operation. Therefore, the telescopic direction can be defined as the direction perpendicular to the vehicle body of the battery swapping vehicle, realizing battery swapping from the side of the battery swapping vehicle, which not only improves the battery swapping efficiency, but also makes the battery swapping operation simpler and faster. On this basis, a sliding mechanism is provided between the battery swapping device and the box body. The battery swapping device moves relative to the box body along a direction perpendicular to the telescopic direction through the sliding mechanism. Then, the direction perpendicular to the telescopic direction is the direction parallel to the vehicle body of the battery swapping vehicle. When the driver parks the battery swapping vehicle in front of or behind the battery swapping position by experience and visual estimation and there is a deviation, the position of the battery swapping device can be adjusted along the direction parallel to the vehicle body of the battery swapping vehicle through the sliding mechanism, forming a way for the battery swapping device to independently and more quickly find the battery pack on the battery swapping vehicle, replacing the existing way that the driver adjusts the vehicle body position multiple times to find the battery swapping position. Moreover, it is easier to adjust the position of the battery swapping device in the direction parallel to the vehicle body of the battery swapping vehicle, which can be achieved through the sliding mechanism, with a simple structure, helping to reduce the battery swapping difficulty, save the cost of the battery swapping station, and improve the battery swapping efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] The drawings described herein are used to provide a further understanding of this application and form a part of this application. The schematic embodiments and descriptions thereof of this application are used to explain this application and do not constitute an improper limitation to this application. In the drawings:

[0058] Figure 1 is the front view of the battery swapping equipment provided by this application;

[0059] Figure 2 is the assembly drawing of the battery swapping main body and the battery swapping device provided by this application, which shows the state where the battery swapping device extends out of the battery swapping main body;

[0060] Figure 3 This is the assembly drawing of the box body and the battery swapping device provided by this application, which shows the state where the battery swapping device extends out of the box body;

[0061] Figure 4 This is the assembly of the battery swapping device provided by this application Figure 1 ;

[0062] Figure 5 This is the assembly of the battery swapping device provided by this application Figure 2 ;

[0063] Figure 6 This is the assembly of the battery swapping device provided by this application Figure 3 ;

[0064] Figure 7 This is the assembly of the battery swapping device provided by this application Figure 4 , which shows the state after the battery tray is removed from the drive plate;

[0065] Figure 8 This is the assembly drawing of the bracket and the sliding mechanism provided by this application;

[0066] Figure 9 This is the structural schematic diagram of the bracket provided by this application;

[0067] Figure 10 This is the structural schematic diagram of the pallet provided by this application;

[0068] Figure 11 This is the assembly drawing of the pallet and the unloading drive mechanism provided by this application;

[0069] Figure 12 This is the assembly drawing of the pallet and the first guiding mechanism provided by this application;

[0070] Figure 13 This is the assembly drawing of the battery tray and the lifting drive mechanism provided by this application;

[0071] Figure 14 is Figure 13 the partial enlarged view of the structure at A in

[0072] Figure 15 This is the assembly drawing of the lifting drive mechanism and the unlocking pin provided by this application;

[0073] Figure 16 This is the structural schematic diagram of the first embodiment of the battery swapping station provided by this application;

[0074] Figure 17 This is the structural schematic diagram of the second embodiment of the battery swapping station provided by this application.

[0075] List of components and reference numerals:

[0076] 1 Support frame, 2 Battery replacement main body, 21 Compartment, 22 Moving component, 23 Roller, 3 Battery replacement device, 31 Telescopic mechanism, 32 Battery replacement mechanism, 321 Pallet, 3211 Sinking groove, 3212 Hanging part, 3213 Supporting part, 3214 Rotating hole, 322 Battery tray, 3221 Battery bearing part, 3222 Reinforcing part, 3223 Mounting hole, 3224 Detection hole, 323 Elastic part, 324 Battery positioning pin, 325 Unlocking pin, 326 Lifting drive mechanism, 3261 Electric push rod, 3262 Connecting rod, 3263 Transmission rod, 3264 First guiding convex block, 3265 Second guiding convex block, 327 Mounting frame, 3271 Horizontal guiding sliding hole, 3272 Vertical guiding sliding hole, 33 Dismounting drive mechanism, 331 Dismounting drive motor, 332 Gear mechanism, 3321 Second driving gear, 3322 Second driven gear, 333 Lead screw-nut kinematic pair, 3331 Lead screw, 3332 Nut, 34 Transmission plate, 4 Sliding mechanism, 41 Sliding drive motor, 42 Rack, 43 First driving gear, 44 First driven gear, 45 Synchronous shaft, 5 Bracket, 51 Cross beam, 52 Longitudinal beam, 53 Hanging ear plate, 6 First guiding mechanism, 61 First guide rail, 62 First slider, 7 Second guiding mechanism, 71 Second guide rail, 72 Second slider, 8 Battery replacement channel. Detailed implementation manners

[0077] In order to more clearly illustrate the overall concept of the present application, the following will be described in detail by way of examples in conjunction with the accompanying drawings of the specification.

[0078] In the following description, many specific details are set forth in order to fully understand the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below.

[0079] In the present application, unless otherwise clearly specified and defined, terms such as "installation", "connection", "connection", "fixation" and the like shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or a communication connection; it may be directly connected, or indirectly connected through an intermediate medium, and may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0080] In this application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, descriptions with reference to terms such as "an embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc., mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0081] In an embodiment of this application, a battery swapping device and a battery swapping station are provided. For the convenience of description and understanding, the following content provided in this application is all elaborated based on the structure of the illustrated product. Of course, those skilled in the art can understand that the above structure is only a specific example and a schematic description, and does not constitute a specific limitation on the technical solution provided in this application.

[0082] As Figures 1 to 15 shown, a battery swapping device 100 provided in this application includes: a fixedly arranged support frame 1, a battery swapping main body 2 that is arranged between the support frames 1 and can move up and down, and a battery swapping device 3 that is arranged in the battery swapping main body 2 and can telescopically move outward from the support frame 1. The battery disassembly and assembly operation of the battery swapping vehicle is realized through the telescopic movement of the battery swapping device 3 and the up and down movement of the battery swapping main body 2; the battery swapping main body 2 includes a box body 21, and a sliding mechanism 4 is arranged between the battery swapping device 3 and the box body 21 to enable the battery swapping device 3 to move relative to the box body 21 in a direction perpendicular to the telescopic direction.

[0083] In this technical solution, the support frame 1 is the overall outer frame of the battery swapping device 100, supporting all components of the battery swapping device 100. The battery swapping main body 2 can move up and down on the support frame 1 to adjust the height of the battery swapping device 3. When it is necessary to disassemble the discharged battery from the battery swapping vehicle or install the fully charged battery onto the battery swapping vehicle, the battery swapping device 3 is adjusted to a height position corresponding to the chassis of the battery swapping vehicle by the up and down movement of the battery swapping main body 2 relative to the support frame 1, and then the battery swapping device 3 is extended, so as to realize the battery disassembly and assembly operation of the battery swapping vehicle. In a preferred embodiment, as Figure 1 and Figure 2As shown in the figure, the battery swapping body 2 can be connected to the support frame 1 through the moving component 22, and the compartment 21 of the battery swapping body 2 is rotatably connected to the moving component 22. By rotating the compartment 21, the orientation of the battery swapping device 3 can be adjusted to facilitate the telescopic movement for performing battery disassembly and assembly operations and / or battery transfer operations. Specifically, the moving component 22 can be a frame structure with rollers 23. The compartment 21 is rotatably connected to the bottom of the frame structure, and the frame structure moves up and down by rolling along the support frame 1 through the rollers 23.

[0084] In this application, the battery swapping device 3 is arranged inside the compartment 21 of the battery swapping body 2, so that the battery swapping device 3 extends out of the compartment 21 to perform the operation of taking and placing the battery pack. When actually taking and placing the battery pack, it only needs the battery swapping device 3 to extend out of the compartment 21 and then enter under the chassis of the battery swapping vehicle, avoiding the whole battery swapping equipment 100 entering under the chassis of the battery swapping vehicle and occupying the vehicle bottom space. Even when the battery swapping vehicle is swapping batteries on a battery swapping platform flush with the ground, more operating space can be provided under its vehicle body for the disassembly or installation of the battery pack, making the battery swapping operation simpler and faster, and avoiding the reduction of lifespan and potential safety hazards caused by digging a pit under the battery swapping platform to create a ground sinking space.

[0085] In addition, the telescopic direction of the battery swapping device 3 is the direction for realizing the battery pack disassembly and assembly operation. Therefore, the telescopic direction can be defined as the direction perpendicular to the body of the battery swapping vehicle, so as to perform battery swapping from the side of the battery swapping vehicle, which not only improves the battery swapping efficiency, but also makes the battery swapping operation simpler and faster. On this basis, a sliding mechanism 4 is provided between the battery swapping device 3 and the compartment 21. Through the sliding mechanism 4, the battery swapping device 3 moves relative to the compartment 21 in a direction perpendicular to the telescopic direction. Then, the direction perpendicular to the telescopic direction is the direction parallel to the body of the battery swapping vehicle. When the driver parks the battery swapping vehicle in front of or behind the battery swapping position by experience and visual estimation and there is a deviation, the position of the battery swapping device 3 can be adjusted along the direction parallel to the body of the battery swapping vehicle through the sliding mechanism 4, forming a way for the battery swapping device 3 to independently and more quickly find the battery pack on the battery swapping vehicle, replacing the existing way that the driver adjusts the vehicle body position multiple times to find the battery swapping position. Moreover, it is easier to adjust the position of the battery swapping device 3 in the direction parallel to the body of the battery swapping vehicle, which can be achieved through the sliding mechanism 4. The structure is simple, which helps to reduce the battery swapping difficulty, save the cost of the battery swapping station, and improve the battery swapping efficiency.

[0086] As a preferred embodiment of this application, as Figure 3As shown, the battery swapping device 3 includes a telescopic mechanism 31 disposed in the box body 21 and a battery swapping mechanism 32 disposed on the telescopic mechanism 31. A sliding mechanism 4 is disposed between the telescopic mechanism 31 and the battery swapping mechanism 32, so that the battery swapping mechanism 32 moves on the telescopic mechanism 31 in a direction perpendicular to the telescopic direction. In this technical solution, the battery swapping device 3 realizes telescopic movement relative to the box body 21 through the telescopic mechanism 31. The telescopic mechanism 31 drives the battery swapping mechanism 32 to extend out of the box body 21 and under the battery swapping vehicle, so as to disassemble the discharged battery from the battery swapping vehicle, and drives the battery swapping mechanism 32 to retract into the box body 21 through the contraction of the telescopic mechanism 31, so as to place the discharged battery on the battery swapping mechanism 32 into the battery compartment for charging. Specifically, the telescopic mechanism 31 preferably uses a forklift, which is convenient for telescoping and also convenient for assembling the battery swapping device 3. In addition, compared with setting the sliding mechanism under the telescopic mechanism and driving the telescopic mechanism and the battery swapping mechanism to move together in a direction perpendicular to the telescopic direction, in this application, the sliding mechanism 4 is disposed between the telescopic mechanism 31 and the battery swapping mechanism 32, so that the sliding mechanism 4 only drives the battery swapping mechanism 32 to move on the telescopic mechanism 31 in a direction perpendicular to the telescopic direction. Then, during the movement, the telescopic mechanism 31 is in a relatively fixed state. The fewer moving parts, the more conducive to improving the accuracy of movement, and it also helps to optimize the power structure and save energy. Moreover, the sliding mechanism 4 can be not set under the telescopic mechanism 31, but can be set in the space within the telescopic mechanism 31 and the battery swapping mechanism 32. This setting method helps to reduce the overall height of the battery swapping device 3, making the battery swapping device 3 more flattened. Then, it occupies less battery swapping space in height during the battery swapping process, bringing less pressure to the battery swapping space under the battery swapping vehicle. Therefore, it has higher adaptability to battery swapping vehicles with different chassis heights, and also provides more operating space for the disassembly or installation of the battery pack, making the battery swapping operation more simple and fast.

[0087] Further preferably, as Figures 3 to 9As shown, the battery swapping mechanism 32 is arranged on the telescopic mechanism 31 through the bracket 5; along the telescopic direction of the telescopic mechanism 31, the bracket 5 includes two cross beams 51 arranged side by side, the cross beams 51 are perpendicular to the telescopic direction of the telescopic mechanism 31, and the two cross beams 51 are connected by two longitudinal beams 52. The battery swapping mechanism 32 is arranged in the space surrounded by the two cross beams 51 and the two longitudinal beams 52. Those skilled in the art can understand that the battery pack itself is a structure with a relatively large weight, and adding the weight of the bracket 5, the requirement for the load-bearing stability of the telescopic mechanism 31 is extremely high. It is necessary for the telescopic mechanism 31 to meet the load-bearing stability of the battery pack and reduce the load on the telescopic mechanism 31 as much as possible. Therefore, it is not suitable to make the bracket 5 into a single-piece solid structure. So in this technical solution, the bracket 5 is set as a rectangular frame structure formed by splicing two cross beams 51 and two longitudinal beams 52. The structure is simple, which facilitates the installation of the battery swapping mechanism 32. On the basis of ensuring the structural strength and load-bearing capacity, it helps to lighten the weight of the bracket 5, reduce the overall weight of the battery swapping device 3, and thus helps to reduce the load on the telescopic mechanism 31. Moreover, arranging the battery swapping mechanism 32 in the space surrounded by the two cross beams 51 and the two longitudinal beams 52 enables the battery swapping mechanism 32 to utilize the space below the bracket 5. Compared with the overall height of the battery swapping mechanism 32 being higher than the bracket 5, it also helps to reduce the overall height of the battery swapping mechanism 32, make the battery swapping device 3 more flattened, and improve the adaptability to battery swapping vehicles with different chassis heights.

[0088] In a preferred embodiment, as Figure 9 shown, hanging lugs 53 are connected to both ends of the cross beam 51, the cross beam 51 sinks relative to the hanging lugs 53, and the hanging lugs 53 are hung and fixed on the top of the telescopic mechanism 31. In this technical solution, the hanging lugs 53 at both ends of the cross beam 51 improve the convenience of installing the bracket 5 on the telescopic mechanism 31. Especially for the forklift-type telescopic mechanism 31, the hanging lugs 53 at both ends can be directly hung and fixed on the tops of the two forklifts. Specifically, the hanging lugs 53 and the telescopic mechanism 31 can also be firmly fixed by bolts to improve stability. Moreover, compared with setting the bracket 5 as a flat structure or a convex structure, in this scheme, the cross beam 51 sinks relative to the hanging lugs 53, so that the whole cross beam 51 is lower than the hanging lugs 53 and further lower than the top surface of the telescopic mechanism 31. And the battery swapping mechanism 32 is arranged in the space surrounded by the two cross beams 51 and the two longitudinal beams 52, which also helps to reduce the height of the battery swapping mechanism 32 on the telescopic mechanism 31.

[0089] In a preferred embodiment, as Figures 3 to 8As shown, the battery swapping mechanism 32 is mounted on two crossbeams 51; the sliding mechanism 4 includes a sliding drive motor 41 and a rack and pinion mechanism. The pinion of the rack and pinion mechanism is in transmission connection with the output shaft of the sliding drive motor 41, and the rack 42 of the rack and pinion mechanism is installed on the crossbeam 51. Specifically, the rack 42 of the rack and pinion mechanism can be fixedly installed on the crossbeam 51 by welding or bolts. When the sliding drive motor 41 operates, the pinion meshes and moves along the rack 42, thereby driving the sliding mechanism 4 to move. The reliability of the rack and pinion mechanism transmission can be utilized to improve the stability and accuracy of the sliding mechanism 4 driving the battery swapping mechanism 32 during movement.

[0090] Specifically, the rack and pinion mechanism may include a single pinion, which realizes transmission between the sliding drive motor 41 and the rack 42. However, the diameter of this pinion will be relatively large, occupying a relatively large amount of horizontal and vertical space, which is not conducive to the flattening of the battery swapping mechanism 32. Therefore, preferably, as Figure 8 shown, the pinion of the rack and pinion mechanism includes a first driving pinion 43 and a first driven pinion 44. The first driving pinion 43 is in transmission connection with the output shaft of the sliding drive motor 41, and the first driven pinion 44 meshes with the first driving pinion 43 and the rack 42 respectively, thereby driving the battery swapping mechanism 32 to move through the sliding drive motor 41. Compared with the method of setting a single pinion between the sliding drive motor 41 and the rack 42 to realize transmission, the sliding drive motor 41 realizes transmission with the rack 42 through the first driving pinion 43 and the first driven pinion 44, which helps to appropriately reduce the size of the rack and pinion mechanism, reduce the installation space it occupies, and is conducive to the compactness, miniaturization and flattening of the battery swapping mechanism 32. When the sliding drive motor 41 drives, it drives the first driving pinion 43 to rotate. The first driving pinion 43 drives the first driven pinion 44 to rotate and move along the rack 42, thereby driving the battery swapping mechanism 32 to move. The movement of the battery swapping mechanism 32 will also drive the sliding drive motor 41 and the first driving pinion 43 to follow, ensuring the stable meshing transmission of the first driving pinion 43 and the first driven pinion 44.

[0091] Further preferably, as Figure 7 and Figure 8As shown, there are two racks 42 and two first driven gears 44 respectively. The two racks 42 are respectively arranged on the inner side walls of the two cross beams 51. The two first driven gears 44 are drivingly connected to the sliding drive motor 41 through a synchronizing shaft 45. The synchronizing shaft 45 is connected to the battery swapping mechanism 32. The sliding drive motor 41 is connected above the rack 42 located inside. It should be noted that when the telescopic mechanism 31 extends relative to the box body 21, the cross beam 51 on the side of the bracket 5 close to the box body 21 is the cross beam 51 located inside. Therefore, the inner rack 42 refers to the rack 42 connected to the cross beam 51 inside the bracket 5. In this technical solution, the two first driven gears 44 are connected through the synchronizing shaft 45, and the synchronizing shaft 45 is connected to the battery swapping mechanism 32. When the sliding drive motor 41 drives the first driving gear 43 on one side to rotate, through the transmission of the first driven gear 44 meshing with the first driving gear 43 and the synchronizing shaft 45, the first driven gears 44 and the racks 42 on both sides operate synchronously. The first driven gears 44 on both sides drive the battery swapping mechanism 32 to move together on both sides of the battery swapping mechanism 32, making the force on the battery swapping mechanism 32 more balanced and the moving stroke more stable and reliable. In addition, the two first driven gears 44 are driven by the synchronizing shaft 45, and the synchronizing shaft 45 occupies a small height space, which helps to reduce the height of the battery swapping mechanism 32.

[0092] In a preferred embodiment, as Figure 7 and Figure 12 shown, a first guiding mechanism 6 is provided between the hanging part 3212 and the cross beam 51. The first guiding mechanism 6 includes a first guide rail 61 provided on the cross beam 51 and a first slider 62 provided on the hanging part 3212. The first guiding mechanism 6 guides the movement of the battery swapping mechanism 32 driven by the sliding drive motor 41 in the direction perpendicular to the telescopic direction, improving the smoothness of the overall movement of the battery swapping mechanism 32 and reducing mechanism jamming.

[0093] Regarding the specific structure of the battery swapping mechanism 32, in a preferred embodiment, as Figures 4 to 7 and Figure 10 and Figure 11As shown, the battery exchange mechanism 32 includes a support plate 321 disposed in the sinking space of the bracket 5 and a battery tray 322 connected to the support plate 321. The support plate 321 is provided with a sinking groove 3211. The battery tray 322 is floatably disposed above the sinking groove 3211 through an elastic member 323. The gear of the rack and pinion mechanism is fixedly connected to the support plate 321 to drive the battery exchange mechanism 32 to move. In this technical solution, the support plate 321 is disposed in the sinking space of the bracket 5, and the other components of the battery exchange mechanism 32 can be integrally mounted on the support plate 321, and the sliding drive motor 41 is fixedly connected to the support plate 321 to drive the battery exchange mechanism 32 to move. Therefore, the sliding drive motor 41 drives the movement of one component of the support plate 321, and can drive the battery exchange mechanism 32 to move as a whole through the support plate 321, which optimizes the transmission structure and also helps to improve the stability of the moving stroke of the battery exchange mechanism 32. The support plate 321 is provided with a sinking groove 3211, and the battery tray 322 is floatably arranged above the sinking groove 3211 through an elastic member 323, which reduces the overall height of the battery tray 322 on the support plate 321, making the overall thickness of the battery swap mechanism 32 smaller and flatter, and taking up less battery swapping space in height, further improving the adaptability to battery swapping vehicles with chassis of different heights. The elastic member 323 on the support plate 321 makes the battery tray 322 floatable, which allows the battery tray 322 to adapt to the shape and state of different battery swapping vehicle chassis and maintain fit with the bottom of the vehicle, thereby achieving stable support for the battery pack and further improving the stability and safety during the battery swapping process. For example, when the chassis of the battery-swapping vehicle is horizontal, the battery tray 322 as a whole can be in a horizontal posture to achieve battery swapping. When the chassis of the vehicle is tilted, the battery tray 322 as a whole can be in a tilted posture to achieve battery swapping. When removing a low-power battery, when the low-power battery is transferred from the vehicle to the battery tray 322, the battery tray 322 moves downward under the action of the gravity of the battery pack, and the floating of the battery tray 322 can achieve a buffering effect, effectively avoiding collision and damage between the battery pack and the battery tray 322. Regarding the manner in which the gears of the rack and pinion mechanism are fixedly connected to the support plate 321 to drive the movement of the battery-swapping mechanism 32, taking the aforementioned sliding mechanism 4 including two sets of rack and pinion mechanisms as an example, the two first driven gears 44 of the two sets of rack and pinion mechanisms can be fixedly connected to the support plate 321. Because the two first driven gears 44 are driven by the synchronous shaft 45, the synchronous shaft 45 can be rotatably connected to the support plate 321, so that the sliding mechanism 4 can eventually drive the support plate 321 to move through the synchronous shaft 45 during operation. Specifically, Figure 7 and Figure 10 As shown, a rotating hole 3214 is provided in the center of the support plate 321 for the synchronization shaft to pass through and be rotatably connected.

[0094] Regarding the structure of the support plate 321, in a preferred embodiment, as Figure 7 and Figure 10As shown in the figure, the pallet 321 includes hanging portions 3212 located at both ends and a supporting portion 3213 connecting the hanging portions 3212 at both ends. The supporting portion 3213 is sunk as a whole below the hanging portions 3212 to form a sunken groove 3211, and the hanging portions 3212 are respectively mounted on two cross beams 51. In this technical solution, the hanging portions 3212 are provided at both ends of the pallet 321, which improves the convenience of installing the pallet 321 on the bracket 5, and the hanging portions 3212 at both ends can be directly hung on the cross beams 51 at both ends of the bracket 5. Moreover, structures such as a sliding drive motor 41 can be installed on the hanging portion 3212 located on the inner side, ensuring that the sliding drive motor 41 is close to the rack 42 located on the cross beam 51, enabling short-distance transmission between the sliding drive motor 41 and the gear-rack mechanism and improving the structural compactness. Furthermore, the sliding drive motor 41 is arranged on the hanging portion 3212 on the inner side of the pallet 321 and is located entirely inside the battery tray 322. The battery swapping mechanism 32 only needs to extend the battery tray 322 under the battery swapping vehicle for battery swapping. The sliding drive motor 41 will not interfere with the body of the battery swapping vehicle on the outside of the vehicle body and does not need to extend under the vehicle, thus avoiding occupying the space under the vehicle body.

[0095] Further preferably, as Figures 4 to 7 and Figure 11As shown in the figure, at least one set of loading and unloading driving mechanism 33 for driving the battery tray 322 to move in the telescopic direction is provided on the pallet 321. The loading and unloading driving mechanism 33 is connected with a transmission plate 34. The transmission plate 34 is arranged in the sinking groove 3211. The elastic member 323 is arranged on the top surface of the transmission plate 34. The loading and unloading driving mechanism 33 drives the battery tray 322 to move through the transmission plate 34 to realize the unlocking and locking of the battery pack. In this technical solution, the loading and unloading driving mechanism 33 drives the battery tray 322 to move through the transmission plate 34 to realize the unlocking and locking of the battery pack, so that the swapping mechanism 32 can complete the operation of unlocking or locking the battery pack by itself under the swapping vehicle. The telescopic mechanism 31 is only used to enter and exit under the vehicle body. The unlocking and locking of the battery pack are realized by the loading and unloading driving mechanism 33 extending into the bottom of the vehicle body, which optimizes the power source. When the battery pack is unlocked and locked by the loading and unloading driving mechanism 33, the telescopic mechanism 31 is in a static state. The loading and unloading driving mechanism 33 only needs to drive the battery tray 322 to translate to unlock and lock, and the unlocking and locking process is more stable and has higher accuracy. The setting of the transmission plate 34 not only facilitates the loading and unloading driving mechanism 33 to drive the battery tray 322 to move, but also facilitates the arrangement of multiple elastic members 323 between the transmission plate 34 and the battery tray 322, improving the floating stability of the battery tray 322. Specifically, regarding the unlocking and locking process, as a preferred embodiment, the loading and unloading driving mechanism 33 can drive the battery tray 322 along the extending direction of the telescopic mechanism 31 to lock the locking mechanism of the battery pack on the swapping vehicle. On the contrary, the loading and unloading driving mechanism 33 drives the battery tray 322 along the retracting direction of the telescopic mechanism 31 to unlock the battery pack on the locking mechanism. Of course, as an alternative embodiment, the loading and unloading driving mechanism 33 can drive the battery tray 322 along the extending direction of the telescopic mechanism 31 to unlock the locking mechanism of the battery pack on the swapping vehicle. On the contrary, the loading and unloading driving mechanism 33 drives the battery tray 322 along the retracting direction of the telescopic mechanism 31 to lock the battery pack on the locking mechanism.

[0096] Regarding the specific form of the loading and unloading driving mechanism 33, in the preferred embodiment, such as Figure 10 and Figure 11As shown in the figure, the unloading and loading drive mechanism 33 includes an unloading and loading drive motor 331 provided on the hanging portion 3212 on the inner side of the pallet 321, and a transmission mechanism that is drivingly connected between the unloading and loading drive motor 331 and the transmission plate 34. The transmission mechanism includes a gear mechanism 332 and a lead screw-nut kinematic pair 333. The output shaft of the unloading and loading drive motor 331, the gear mechanism 332, and the lead screw 3331 of the lead screw-nut kinematic pair 333 are sequentially drivingly connected, and the nut 3332 of the lead screw-nut kinematic pair 333 is connected to the transmission plate 34. It should be noted that when the telescopic mechanism 31 extends relative to the box body 21, the hanging portion 3212 on the side of the pallet 321 close to the box body 21 is the hanging portion 3212 on the inner side. Therefore, the unloading and loading drive motor 331 is provided on the hanging portion 3212 on the side of the pallet 321 close to the box body 21. The unloading and loading drive mechanism 33 drives the transmission plate 34 to move through the transmission of the gear mechanism 332 and the lead screw-nut kinematic pair 333. The reliability of the transmission of the gear mechanism 332 and the lead screw-nut kinematic pair 333 can be used to improve the stability and accuracy of the unloading and loading drive mechanism 33 driving the transmission plate 34 to move, optimize the unlocking and locking process of the battery pack, and enable the battery pack to be smoothly unlocked and locked. Specifically, when the unloading and loading drive motor 331 operates, it drives the gear mechanism 332 to transmit, causing it to drive the lead screw 3331 to rotate. During the rotation of the lead screw 3331, the nut 3332 is driven to translate along the lead screw 3331 in the telescopic direction of the telescopic mechanism 31, so that the transmission plate 34 drives the battery tray 322 to translate synchronously, realizing the unlocking and locking of the battery pack on the locking mechanism of the battery swapping vehicle. The unloading and loading drive motor 331 is provided on the hanging portion 3212 on the inner side of the pallet 321 and is entirely located inside the battery tray 322. The battery swapping mechanism 32 only needs to extend the battery tray 322 under the battery swapping vehicle for battery swapping. The unloading and loading drive motor 331 will not interfere with the body of the battery swapping vehicle on the outside of the vehicle body and does not need to extend under the vehicle, avoiding occupying the space under the vehicle body. The unloading and loading drive mechanism 33 only needs to extend the lead screw 3331 and the nut 3332 under the transmission plate 34 to achieve transmission. The lead screw 3331 and the nut 3332 occupy a small height space, which helps to reduce the height of the transmission plate 34 and the battery tray 322 on the transmission plate 34.

[0097] Regarding the gear mechanism 332, the gear mechanism 332 may include a single gear, which realizes the transmission between the unloading and loading drive motor 331 and the lead screw 3331. However, the diameter of this gear will be relatively large, occupying a relatively large amount of horizontal and height space, which is not conducive to the flattening of the battery swapping mechanism 32. Therefore, in this technical solution, as Figure 11As shown, the gear mechanism 332 includes a second driving gear 3321 and a second driven gear 3322 that mesh with each other. The second driving gear 3321 is drivingly connected to the output shaft of the loading and unloading driving motor 331, and the second driven gear 3322 is drivingly connected to the lead screw 3331. Compared with the method of using a single gear to achieve transmission between the loading and unloading driving motor 331 and the lead screw 3331, the loading and unloading driving motor 331 is transmitted to the lead screw 3331 through the second driving gear 3321 and the second driven gear 3322, which helps to appropriately reduce the size of the gear mechanism 332, reduce the installation space it occupies, and is beneficial to the compact, miniaturized and flattened structure of the battery swapping mechanism 32.

[0098] Further preferably, as shown in FIGS. 4 to Figure 7 and Figure 11 As shown, two sets of loading and unloading driving mechanisms 33 are provided on the pallet 321; in the direction perpendicular to the telescopic direction, the two sets of loading and unloading driving mechanisms 33 are arranged on both sides of the sliding mechanism 4. In this technical solution, the two sets of loading and unloading driving mechanisms 33 drive the battery tray 322 to move synchronously on both sides of the pallet 321, and each of the two sets of loading and unloading driving mechanisms 33 can correspond to a transmission plate 34. The two transmission plates 34 together support the battery tray 322, with a large supporting surface, high supporting stability for the battery pack, more balanced force on the battery tray 322, and a more stable and reliable moving stroke of the two sets of loading and unloading driving mechanisms 33 driving the battery tray 322. The two sets of loading and unloading driving mechanisms 33 are arranged on both sides of the sliding mechanism 4, making full use of the installation space on the pallet 321, balancing the force on the pallet 321, and improving the structural stability.

[0099] In a preferred embodiment, as shown in Figure 11 As shown, a second guiding mechanism 7 is provided between the pallet 321 and the transmission plate 34. The second guiding mechanism 7 includes a second guide rail 71 provided on the pallet 321 and a second slider 72 provided on the transmission plate 34. The second guiding mechanism 7 guides the movement of the loading and unloading driving motor 331 to drive the transmission plate 34 and the battery tray 322 in the telescopic direction, improving the smoothness of the movement of the battery tray 322, reducing jamming, and enhancing the smoothness of unlocking and locking of the battery pack.

[0100] Regarding the structure of the battery tray 322, in a preferred embodiment, as shown in Figure 13As shown, the battery tray 322 includes a battery carrying portion 3221 and a reinforcing portion 3222. The battery carrying portion 3221 extends horizontally, and the reinforcing portion 3222 is provided at one end of the battery carrying portion 3221 close to the support frame 1 and extends upward, making the overall structure of the battery tray 322 an L-shaped structure. In this technical solution, the battery carrying portion 3221 extends horizontally and can be used to stably carry the battery pack. The reinforcing portion 3222 extends upward, making the overall structure of the battery tray 322 an L-shaped structure. The L-shaped structure has higher strength and stability compared to the flat structure, stronger pressure-bearing capacity, and helps to extend the service life of the battery tray 322.

[0101] Furthermore, as Figure 13 shown, the battery carrying portion 3221 is provided with battery positioning pins 324. The battery positioning pins 324 are used to cooperate with the positioning holes on the battery pack to achieve the positioning of the battery pack on the battery tray 322, so as to drive the battery pack to move synchronously when unlocking and locking the battery pack. In this technical solution, the positioning pins provided on the battery carrying portion 3221 can ensure the correct position of the battery pack during the battery swapping process, prevent the battery pack from shifting during the transportation process and the unlocking and locking process, thereby improving the accuracy and safety of battery swapping. In addition, through the cooperation of the battery positioning pins 324 and the battery pack, a positioning and clamping effect is generated on the battery pack, so as to facilitate the battery tray 322 to drive the battery pack to move synchronously, and can also make the battery pack more capable of withstanding the unlocking force and improve the stability of battery unlocking. Figure 13 An embodiment in which four mounting holes 3223 are provided on the battery tray 322 is schematically shown. Among them, two of the mounting holes 3223 are installed with battery positioning pins 324, and the other two mounting holes 3223 are used as spare holes for adjusting the installation position of the battery positioning pins 324 to adapt to the position of the positioning holes of the battery pack.

[0102] In a preferred embodiment, as Figure 13As shown in the figure, the battery swapping mechanism 32 further includes a plurality of unlocking pins 325 that are vertically arranged through the battery carrying part 3221 and a lifting drive mechanism 326 that is fixed to the bottom surface of the battery carrying part 3221 and is used to drive the lifting of the unlocking pins 325. In this technical solution, the unlocking pins 325 can be used to lock and unlock the battery pack, especially adapted to the technology of locking the battery pack by the battery locking mechanism in existing battery swapping vehicles. Among them, the battery locking mechanism includes a plurality of lock bases with lock grooves, lock tongues that can move inside, and a lock link connecting the plurality of lock tongues. The lock tongues are used to open or close the lock grooves. When locking the battery pack, since the lock shaft on the battery pack needs to enter the lock groove, the unlocking pins 325 can be pushed up to push the lock link, so that the lock link drives all the lock tongues to move up to open the lock groove, so that the lock shaft can enter the lock groove. Then the unlocking pins 325 descend to cancel the pushing of the lock link, and the lock link drives the lock tongues to move down to re-close the lock groove. At this time, the lock tongues block the lock shaft from disengaging from the lock groove, thus realizing the locking of the battery pack; when unlocking the battery pack, since the lock shaft on the battery pack needs to disengage from the lock groove, the unlocking pins 325 can be pushed up to push the lock link, so that the lock link drives all the lock tongues to move up to open the lock groove, so that the lock shaft can disengage from the lock groove. After the lock shaft disengages from the lock groove, the unlocking pins 325 descend to cancel the pushing of the lock link, and the lock link drives the lock tongues to move down to re-close the lock groove. In this technical solution, the unlocking pins 325 can be driven to lift by the lifting drive mechanism 326. Therefore, the lifting action of the unlocking pins 325 required for the locking and unlocking process of the battery pack on the battery swapping vehicle can be realized by the lifting drive mechanism 326. Therefore, the lifting of the unlocking pins 325 can be independent of the lifting of the battery swapping main body 2. The lifting of the battery swapping main body 2 is used to adjust the height position corresponding to the chassis of the battery swapping vehicle. After adjustment, the telescopic mechanism 31 drives the battery swapping mechanism 32 to extend under the battery swapping vehicle, and then the lifting drive mechanism 326 drives the unlocking pins 325 to lock and unlock. During the locking and unlocking process, the battery swapping main body 2 and the battery tray 322 are in a relatively fixed state. The fewer the moving parts, the more conducive to improving the accuracy of the lifting of the unlocking pins 325, improving the reliability of locking and unlocking, thereby improving the safety and efficiency of the battery swapping process, increasing the flexibility of the battery swapping device 100, and making the battery pack replacement process more efficient and safe. The setting of a plurality of unlocking pins 325 can match the technology of setting a plurality of battery pack locking mechanisms on the battery swapping vehicle, and realize the synchronous action of the battery pack locking mechanism to lock and unlock.

[0103] Further preferably, as Figure 6 and Figure 13As shown, along the vertical direction of the telescopic direction, two unlocking pins 325 are provided at each end of the battery carrier 3221; the two unlocking pins 325 at the same end of the battery carrier 3221 are driven to lift and lower synchronously by a lifting drive mechanism 326. In this technical solution, the unlocking pins 325 at both ends of the battery carrier 3221 can correspond to different levels of locking and unlocking respectively. For example, the unlocking pins 325 at one end correspond to the first-level locking and unlocking, and the unlocking pins 325 at the other end correspond to the second-level locking and unlocking. The first-level locking and unlocking and the second-level locking and unlocking can be completed synchronously. The two unlocking pins 325 at the same end of the battery carrier 3221 are driven to lift and lower synchronously by a lifting drive mechanism 326, which simplifies the drive structure and improves the synchronism of locking and unlocking.

[0104] Regarding the specific structure of the lifting drive mechanism 326, in a preferred embodiment, as Figure 13 、 Figure 14 and 15 shown, the two unlocking pins 325 at the same end of the battery carrier 3221 are arranged at intervals along the telescopic direction; the lifting drive mechanism 326 includes an electric push rod 3261, a connecting rod 3262, and transmission rods 3263 corresponding to the two unlocking pins 325 one by one. The connecting rod 3262 is connected to the electric push rod 3261. The two ends of the transmission rod 3263 are respectively hinged to the connecting rod 3262 and the unlocking pin 325. The electric push rod 3261 drives the two unlocking pins 325 to lift and move by driving the connecting rod 3262 to translate along the telescopic direction and the transmission of the transmission rod 3263. In this technical solution, when the electric push rod 3261 drives the connecting rod 3262 to translate, the connecting rod 3262 drives all the transmission rods 3263 to rotate relative to the connecting rod 3262, so that the transmission rod 3263 drives the unlocking pin 325 to lift and move, making the lifting and moving of the unlocking pin 325 stable and reliable, and improving the locking and unlocking efficiency.

[0105] Furthermore, as Figure 13 、 Figure 14 and 15As shown, an installation frame 327 corresponding to the lifting drive mechanism 326 is provided at the bottom of the battery carrier 3221. The electric push rod 3261 is installed in the installation frame 327 and drives the connecting rod 3262 to translate along the telescopic direction within the installation frame 327. The installation frame 327 is provided with a first guiding structure for guiding the translation of the connecting rod 3262 and a second guiding structure for guiding the lifting movement of the unlocking pin 325. In this technical solution, the installation frame 327 is installed at the bottom of the battery carrier 3221 as a bearing structure for the lifting drive mechanism 326, improving the portability of the assembly of the lifting drive mechanism 326 and enabling the lifting drive mechanism 326 to rise and fall with the battery tray 322. Specifically, the installation frame 327 can be installed at the bottom of the battery carrier 3221 by welding or bolts. The first guiding structure guides the translation of the connecting rod 3262, making the translation of the connecting rod 3262 stable and smooth. The second guiding structure guides the lifting movement of the unlocking pin 325, making the lifting of the unlocking pin 325 stable and smooth. Preferably, the first guiding structure is a horizontal guiding sliding hole 3271 provided in the installation frame 327, and a first guiding convex block 3264 is provided on the connecting rod 3262. The first guiding convex block 3264 slides horizontally along the horizontal guiding sliding hole 3271 to guide the translation of the connecting rod 3262. The second guiding structure is a vertical guiding sliding hole 3272 provided in the installation frame 327, and a second guiding convex block 3265 is provided on the unlocking pin 325. The second guiding convex block 3265 slides vertically along the vertical guiding sliding hole 3272 to guide the lifting of the unlocking pin 325.

[0106] In a preferred embodiment, as Figure 13 shown, the battery swapping device 3 further includes a battery detection unit located below the battery carrier 3221. The battery carrier 3221 is provided with a detection hole 3224, and the battery detection unit detects whether there is status information of the battery pack on the battery tray 322 through the detection hole 3224. In this technical solution, it is possible to detect whether there is status information of the battery pack on the battery tray 322 to ensure the stable and orderly progress of the battery swapping process, and it can also effectively transmit whether there is status information of the battery pack on the battery tray 322 to the control unit of the battery swapping device 100 to monitor the battery swapping process and perform timely maintenance in case of a failure. Although the battery detection unit is not shown in the drawings, the battery detection unit can be selected from a position sensor, an object recognition sensor, etc.

[0107] A battery swapping station provided by the present application, as Figure 16 and Figure 17As shown, it includes a battery swapping channel 8 for accommodating the battery swapping of electric vehicles, and also includes the battery swapping device 100 as described above. Along the vertical direction of the driving direction of the electric vehicle in the battery swapping channel 8, the battery swapping device is arranged on at least one side of the battery swapping channel 8. Those skilled in the art can understand that since the above-mentioned battery swapping device 100 is adopted in the battery swapping station, it can ensure the rapid and safe replacement of the battery pack, improve the battery swapping efficiency, and avoid occupying the space at the bottom of the vehicle and the space in the battery compartment caused by the entire battery swapping device 100 entering the bottom of the battery swapping vehicle and the battery compartment, thus realizing the optimization of the entire battery swapping process. Figure 16 An embodiment in which the battery swapping device 100 is arranged on one side of the battery swapping channel 8 is illustrated in Figure 16 , realizing one-sided battery swapping, and the disassembly and assembly of the battery pack are executed by the same set of battery swapping device 100. Figure 17 An embodiment in which the battery swapping device 100 is arranged on both sides of the battery swapping channel 8 is illustrated in Figure 17 . The battery swapping device 100 on one side can be used to disassemble the discharged battery, and the battery swapping device 100 on the other side can be used to install the fully charged battery. The battery swapping devices 100 on both sides can perform battery swapping actions that do not interfere with each other synchronously, thereby improving the battery swapping efficiency.

[0108] It should be noted that since the battery swapping station provided in this application includes the battery swapping device 100 in any of the above-mentioned embodiments or implementation manners, the beneficial effects possessed by the battery swapping device 100 are all included in the battery swapping station provided in this application, and will not be elaborated here.

[0109] What is not described in this application can be realized by adopting or referring to the existing technologies.

[0110] Each embodiment in this specification is described in a progressive manner. The same or similar parts between each embodiment can be referred to each other, and the key points of each embodiment are the differences from other embodiments.

[0111] The above are only the embodiments of this application and are not used to limit this application. For those skilled in the art, this application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the scope of the claims of this application.

Claims

1. A battery swapping device, characterized in that, Comprising: A fixedly arranged support frame, a battery swapping body disposed between the support frames and capable of lifting and moving, and a battery swapping device disposed within the battery swapping body and capable of telescoping and moving outward from the support frame. The battery swapping operation for the battery swapping vehicle is realized through the telescoping movement of the battery swapping device and the lifting movement of the battery swapping body; the battery swapping body includes a box body, and a sliding mechanism is provided between the battery swapping device and the box body to enable the battery swapping device to move relative to the box body in a direction perpendicular to the telescoping direction.

2. The battery swapping equipment according to claim 1, wherein The battery swapping device includes a telescoping mechanism disposed within the box body and a battery swapping mechanism disposed on the telescoping mechanism. The sliding mechanism is disposed between the telescoping mechanism and the battery swapping mechanism to enable the battery swapping mechanism to move on the telescoping mechanism in a direction perpendicular to the telescoping direction.

3. The battery swapping equipment according to claim 2, wherein The battery swapping mechanism is disposed on the telescoping mechanism through a bracket; Along the telescoping direction of the telescoping mechanism, the bracket includes two cross beams arranged side by side. The cross beams are perpendicular to the telescoping direction of the telescoping mechanism, and the two cross beams are connected by two longitudinal beams. The battery swapping mechanism is disposed within the space enclosed by the two cross beams and the two longitudinal beams.

4. The battery swapping equipment according to claim 3, wherein Hanging ear plates are connected to both ends of the cross beam. The cross beam sinks relative to the hanging ear plates, and the hanging ear plates are fixedly hung on the top of the telescoping mechanism.

5. The battery swapping equipment according to claim 3, wherein The battery swapping mechanism is mounted on the two cross beams; The sliding mechanism includes a sliding drive motor and a gear-rack mechanism. The gear of the gear-rack mechanism is in transmission connection with the output shaft of the sliding drive motor, and the rack of the gear-rack mechanism is mounted on the cross beam.

6. The battery swapping equipment according to claim 5, wherein The gear of the gear-rack mechanism includes a first driving gear and a first driven gear. The first driving gear is in transmission connection with the output shaft of the sliding drive motor, and the first driven gear is respectively meshed with the first driving gear and the rack, so as to drive the battery swapping mechanism to move through the sliding drive motor.

7. The battery swapping equipment according to claim 6, wherein There are two racks and two first driven gears respectively. The two racks are respectively disposed on the inner side walls of the two cross beams. The two first driven gears are in transmission connection with the sliding drive motor through a synchronizing shaft. The synchronizing shaft is connected to the battery swapping mechanism, and the sliding drive motor is connected above the inner rack.

8. The battery swapping equipment according to any one of claims 5-7, wherein The battery swapping mechanism includes a tray disposed within the sunken space of the bracket and a battery tray connected within the tray. The tray is provided with a sunken groove, and the battery tray is floatingly disposed above the sunken groove through an elastic member. The gear of the gear-rack mechanism is connected to the tray to drive the battery swapping mechanism to move.

9. The battery swapping device according to claim 8, wherein the pallet includes hanging portions at both ends and a supporting portion connecting the two hanging portions at both ends. The supporting portion is integrally sunken lower than the hanging portions to form the sunken groove, and the hanging portions are respectively mounted on the two cross beams.

10. The battery swapping device according to claim 9, wherein at least one set of loading and unloading driving mechanisms for driving the battery tray to move along the telescopic direction is provided on the pallet. The loading and unloading driving mechanism is connected with a transmission plate. The transmission plate is arranged in the sunken groove, and the elastic member is arranged on the top surface of the transmission plate. The loading and unloading driving mechanism drives the battery tray to move through the transmission plate to unlock and lock the battery pack.

11. The battery swapping device according to claim 10, wherein the loading and unloading driving mechanism includes a loading and unloading driving motor arranged on the inner hanging portion of the pallet and a transmission mechanism transmission-connected between the loading and unloading driving motor and the transmission plate. The transmission mechanism includes a gear mechanism and a lead screw nut kinematic pair. The output shaft of the loading and unloading driving motor, the gear mechanism and the lead screw of the lead screw nut kinematic pair are sequentially transmission-connected, and the nut of the lead screw nut kinematic pair is connected with the transmission plate.

12. The battery swapping device according to claim 11, wherein the gear mechanism includes a second driving gear and a second driven gear that mesh with each other. The second driving gear is transmission-connected with the output shaft of the loading and unloading driving motor, and the second driven gear is transmission-connected with the lead screw.

13. The battery swapping device according to claim 12, wherein two sets of the loading and unloading driving mechanisms are provided on the pallet; along the direction perpendicular to the telescopic direction, the two sets of the loading and unloading driving mechanisms are arranged on both sides of the sliding mechanism.

14. The battery swapping device according to claim 10, wherein a first guiding mechanism is provided between the hanging portion and the cross beam. The first guiding mechanism includes a first guide rail arranged on the cross beam and a first slider arranged on the hanging portion; and / or a second guiding mechanism is provided between the pallet and the transmission plate. The second guiding mechanism includes a second guide rail arranged on the pallet and a second slider arranged on the transmission plate.

15. The battery swapping device according to claim 8, wherein the battery tray includes a battery carrying portion and a reinforcing portion. The battery carrying portion extends horizontally, and the reinforcing portion is arranged at one end of the battery carrying portion close to the support frame and extends upward, so that the battery tray is in an overall L-shaped structure.

16. The battery swapping device according to claim 15, wherein the battery carrying portion is provided with a battery positioning pin, and the battery positioning pin is used for cooperating with a positioning hole on the battery pack to realize the positioning of the battery pack on the battery tray, so as to drive the battery pack to move synchronously when unlocking and locking the battery pack.

17. The battery swapping device according to claim 16, wherein In the direction perpendicular to the telescopic direction, a plurality of mounting holes are provided at intervals on the battery carrier portion, and the battery positioning pins are detachably mounted in any one or any plurality of the plurality of mounting holes.

18. The battery swapping device according to claim 15, wherein the battery swapping mechanism further includes a plurality of unlocking pins that are vertically and telescopically disposed through the battery carrier portion, and a lifting drive mechanism that is fixed to the bottom surface of the battery carrier portion and is used to drive the unlocking pins to lift and lower.

19. The battery swapping device according to claim 18, wherein in the direction perpendicular to the telescopic direction, two of the unlocking pins are provided at each end of the battery carrier portion; the two unlocking pins located at the same end of the battery carrier portion are driven by one of the lifting drive mechanisms to lift and lower synchronously.

20. The battery swapping device according to claim 19, wherein the two unlocking pins located at the same end of the battery carrier portion are arranged at intervals in the telescopic direction; the lifting drive mechanism includes an electric push rod, a connecting rod, and transmission rods corresponding to the two unlocking pins one by one. The connecting rod is connected to the electric push rod, and the two ends of the transmission rod are respectively hinged to the connecting rod and the unlocking pin. The electric push rod drives the two unlocking pins to lift and move by driving the connecting rod to translate in the telescopic direction and the transmission of the transmission rod.

21. The battery swapping device according to claim 20, wherein an installation frame corresponding to the lifting drive mechanism is provided at the bottom of the battery carrier portion. The electric push rod is installed in the installation frame and drives the connecting rod to translate in the installation frame in the telescopic direction. The installation frame is provided with a first guiding structure for guiding the translation of the connecting rod and a second guiding structure for guiding the lifting and moving of the unlocking pin.

22. The battery swapping device according to claim 15, wherein the battery swapping device further includes a battery detection unit located below the battery carrier portion. The battery carrier portion is provided with a detection hole, and the battery detection unit detects the state information of whether there is a battery pack on the battery tray through the detection hole.

23. A battery swapping station, comprising a battery swapping passage for accommodating the battery swapping of an electric vehicle, characterized in that, There is also provided a battery swapping device according to any one of claims 1 to 22. In the direction perpendicular to the traveling direction of the electric vehicle in the battery swapping channel, the battery swapping device is provided on at least one side of the battery swapping channel.

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