Battery swapping device and battery swapping system

Abstract

The application relates to a battery replacing device and a battery replacing system for replacing batteries of electric equipment, which comprises a moving base for driving the battery replacing device to move, two battery replacing mechanisms arranged on the moving base, the two battery replacing mechanisms being used for carrying two batteries so that the battery replacing device can replace the two batteries at the same time, and a position adjusting mechanism arranged on the moving base, the position adjusting mechanism being configured to drive the two battery replacing mechanisms to adjust positions. The battery replacing device provided by the application can replace two batteries at the same time, the number of walking times during the battery replacing process is small, the battery replacing efficiency is high, and the problem of low battery replacing efficiency at present is solved.

Description

Technical Field

[0001] This application relates to the field of battery swapping technology for electrical equipment, and more specifically, to a battery swapping device and a battery swapping system. Background Technology

[0002] With the development of new energy technologies, more devices are using batteries. When these devices run out of power, they are often recharged by connecting to a charging device. Alternatively, batteries can be swapped for faster power replenishment, typically requiring a dedicated device (battery swapping unit). However, existing battery swapping units are inconvenient to operate and have low replacement efficiency. Summary of the Invention

[0003] This application aims to provide a battery swapping device and system to solve the problem of low battery swapping efficiency in the prior art.

[0004] The embodiments of this application are implemented as follows:

[0005] In a first aspect, embodiments of this application provide a battery swapping device for replacing the battery of an electrical device, comprising:

[0006] A movable base is used to move the battery swapping device.

[0007] Two battery swapping mechanisms are disposed on the mobile base, and the two battery swapping mechanisms are used to carry two batteries so that the battery swapping device can replace two batteries at the same time.

[0008] A switching mechanism is provided on the movable base, and the switching mechanism is configured to drive the two battery swapping mechanisms to switch positions.

[0009] When the battery swapping device moves to the electrical equipment, the switching mechanism drives two swapping mechanisms to align with the battery mounting positions of the electrical equipment, allowing each mechanism to remove and install a battery, thus enabling battery replacement. When the device moves to the battery pick-and-place device, the switching mechanism drives the two swapping mechanisms to switch positions, allowing them to approach the pick-and-place device sequentially, facilitating the forks of the pick-and-place device to pick up or place batteries from the two swapping mechanisms. Through this solution, the battery swapping device provided in this application can simultaneously replace two batteries with only two round trips between the electrical equipment and the pick-and-place device. Existing battery swapping devices, however, cannot simultaneously replace two batteries; they require at least three round trips. This application, by meeting the requirement of simultaneously replacing two batteries, reduces the number of round trips compared to existing technologies, improving swapping efficiency and solving the problem of low swapping efficiency.

[0010] Furthermore, when only one battery pack needs to be replaced, the prior art requires at least two round trips to complete the replacement of a single battery. In contrast, the battery swapping device of this application removes the battery from the battery mounting position of the device through one swapping mechanism and installs the battery into the battery mounting position of the device through another swapping mechanism. Since the two swapping mechanisms can be interchanged, there is no problem of them not being able to cooperate with the battery pick-and-place device to pick up and place the battery. Therefore, the battery replacement can be completed in one round trip, which improves the battery swapping efficiency and solves the problem of low battery swapping efficiency.

[0011] In one embodiment of this application, the switching mechanism includes a driving member and a rotating base. The driving member is used to drive the rotating base to rotate. The two battery swapping mechanisms are mounted on the rotating base and are symmetrically arranged about the rotation axis of the rotating base.

[0012] In the above scheme, the two battery swapping mechanisms are rotated to interchange positions. The two mechanisms are symmetrically arranged about the rotation axis of the rotating base. After the rotating base rotates 180°, the two mechanisms are positioned opposite each other. The swapping operation is simple and convenient, facilitating battery access. Furthermore, when the battery mounting positions of the electrical equipment are arranged in different directions, the position of the battery swapping mechanism can be changed by rotating the rotating base. This scheme is applicable to various electrical equipment with different battery mounting position arrangements, demonstrating wide applicability.

[0013] In one embodiment of this application, the driving member is fixed to the movable base, and the switching mechanism further includes a first gear and a second gear that mesh with each other. The first gear is installed at the output end of the driving member, and the second gear is fixed to the rotating seat.

[0014] In the above technical solution, rotation is achieved by a gear set that drives on the same plane. The distance between the rotating seat and the moving base is small, the overall structure of the battery swapping device is compact, the center of gravity is low, and the movement is stable and the passability is good.

[0015] In one embodiment of this application, the two battery swapping mechanisms are spaced apart.

[0016] In the above technical solution, the two battery swapping mechanisms are spaced apart to avoid interference affecting their respective battery swapping.

[0017] In one embodiment of this application, the battery swapping mechanism includes an unlocking / locking component and a protective cover. The unlocking / locking component includes a base plate and an unlocking / locking unit. The unlocking / locking unit is used to lock or unlock the battery. The protective cover covers the base plate and has a first opening for the unlocking / locking unit to extend out.

[0018] In the above technical solution, the protective cover blocks the locking and unlocking components, which serves a protective function and does not affect the normal operation of the locking and unlocking unit.

[0019] In one embodiment of this application, the unlocking / unlocking assembly further includes a positioning member for positioning the battery and a support member for supporting the battery, and the protective cover is provided with a second opening for the positioning member to extend out and a third opening for the support member to extend out.

[0020] In the above technical solution, the battery is supported by a support member to reduce the force on the protective cover, the battery is positioned on the unlocking / unlocking component by a positioning member, and the unlocking / unlocking component is aligned with the battery mounting position of the electrical equipment by the positioning member, thereby determining the installation position of the battery and ensuring that the battery corresponds with the battery mounting position of the electrical equipment.

[0021] In one embodiment of this application, the protective cover has a slot on the side opposite to the unlocking / unlocking component, the slot being used for inserting a fork to pick up or put down the battery.

[0022] In the above technical solution, the forks are below the bottom of the battery when they are in the slot. The battery can be removed by raising the forks. By setting the slot, the forks are prevented from rubbing against the bottom of the battery, thus preventing battery wear.

[0023] In one embodiment of this application, the battery swapping mechanism further includes a lifting component for lifting the unlocking / unlocking component.

[0024] In the above technical solution, the lifting component can reduce the height of the battery swapping device when it moves, making the overall structure of the battery swapping device more compact and the center of gravity lower, thus improving the passability of the battery swapping device. When the battery swapping device reaches the electrical equipment, the lifting component lifts the battery swapping mechanism, which allows the unlocking component to approach the electrical equipment to complete the battery unlocking and locking, thereby completing the battery removal and installation.

[0025] In one embodiment of this application, the unlocking / unlocking component is floatingly connected to the lifting component.

[0026] In the above technical solution, since the two unlocking components are set to float separately, each of the two unlocking components has a horizontal adjustment margin. When there is a horizontal position error between the unlocking components and the power-consuming equipment, it ensures that the two batteries correspond to the battery position of the power-consuming equipment.

[0027] Secondly, embodiments of this application provide a battery swapping system, which includes:

[0028] track;

[0029] The battery swapping device described above is movably mounted on the track;

[0030] The battery swapping platform is located at one end of the track;

[0031] A battery loading and unloading device is located at the other end of the track.

[0032] The battery swapping system provided in this application has two swapping mechanisms that can be switched, allowing the two swapping mechanisms to approach the battery pick-and-place device one after the other. This allows the forks of the battery pick-and-place device to pick up or place the battery on the two swapping mechanisms in sequence, meeting the need to replace two batteries at the same time and improving the battery swapping efficiency. Attached Figure Description

[0033] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the battery swapping system provided in an embodiment of this application;

[0035] Figure 2 A side view of the battery swapping device provided in the embodiment of this application in a state where the battery is carried and lifted.

[0036] Figure 3 This is a three-dimensional schematic diagram of the battery swapping device provided in the embodiments of this application, showing the battery-carrying state.

[0037] Figure 4 This is a three-dimensional schematic diagram of the battery swapping device provided in the embodiments of this application;

[0038] Figure 5 This is an exploded view of the battery swapping device provided in the embodiments of this application;

[0039] Figure 6 This is a schematic diagram of the structure of the movable base provided in the embodiments of this application;

[0040] Figure 7 A schematic diagram of the upper surface of the rotary seat provided in an embodiment of this application;

[0041] Figure 8 A schematic diagram of the lower surface of the rotary seat provided in an embodiment of this application;

[0042] Figure 9 This is a schematic diagram of the battery swapping device provided in an embodiment of this application, with the protective cover removed.

[0043] Figure 10 This is a schematic diagram of the unlocking / unlocking components of the battery swapping mechanism provided in an embodiment of this application;

[0044] Figure 11 This is a schematic diagram of the structure of the protective cover provided in the embodiments of this application;

[0045] Figure 12This is a schematic diagram illustrating the unlocking principle of the unlocking component provided in the embodiments of this application;

[0046] Figure 13 A lifting state diagram of the lifting assembly of the battery swapping device provided in the embodiments of this application;

[0047] Figure 14 This is a schematic diagram of the scissor-type support arm provided in an embodiment of this application;

[0048] Figure 15 This is a schematic diagram of the connection structure between the lifting assembly and the unlocking assembly provided in an embodiment of this application;

[0049] Figure 16 This is a schematic diagram illustrating the process of the battery swapping device provided in this embodiment moving to the bottom of the vehicle.

[0050] Figure 17 This is a schematic diagram of the battery swapping device provided in an embodiment of this application before the battery is removed;

[0051] Figure 18 This is a schematic diagram of the battery swapping device provided in the embodiments of this application after the battery has been removed;

[0052] Figure 19 This is a schematic diagram illustrating the process of the battery swapping device moving to the battery pick-and-place device according to an embodiment of this application.

[0053] Figure 20 This is a schematic diagram of the battery pick-and-place device provided in this embodiment picking up and placing batteries on the battery swapping device.

[0054] Icons: 1000-Battery swapping system; 2000-Battery; 2001-Fasting bolt; 2002-First pin hole; 3000-Vehicle chassis; 3001-Modible nut; 100-Battery swapping device; 200-Battery loading / unloading device; 201-Forklift; 300-Battery swapping platform; 301-Clearing opening; 400-Rail; 500-Rack; 1-Moving base; 11-Base body; 12-Roller; 13-Walking drive mechanism; 131-Walking motor; 132-Walking gear; 14-Base; 141-Bearing; 2-Battery swapping mechanism; 21-Unlocking assembly; 211-Base plate; 2111-Support column; 2112-Chain; 212-Unlocking unit; 2121-Drive motor; 2122-Bolt sleeve; 213-Support component; 2131-First pin hole 1-Support block; 2132-Second support block; 2133-Elastic element; 214-Positioning element; 22-Protective cover; 221-First opening; 222-Second opening; 223-Third opening; 224-Slot; 23-Lifting assembly; 231-Scissor-type support arm; 2311-First support rod; 23111-First slider; 2312-Second support rod; 23121-Second slider; 2313-First bearing seat; 2314-Second bearing seat; 2315-First slide rail; 2316-Second slide rail; 232-Lifting drive component; 2321-Lifting motor; 2322-Lead screw; 2323-Nut; 233-Mounting seat; 3-Adjustment mechanism; 31-Rotating seat; 311-Second gear; 32-Drive component; 321-First gear; a-Rotation axis. Detailed Implementation

[0055] The embodiments of the technical solution of this application will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to illustrate the technical solution of this application more clearly, and are therefore only examples, and should not be used to limit the scope of protection of this application.

[0056] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0057] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0058] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0059] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0060] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0061] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0062] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0063] With the development of new energy technologies, more and more devices are using batteries. When the power of these devices is depleted, they are often replenished by connecting to charging equipment, such as electric vehicles that can be charged at charging stations. Compared to connecting to charging stations, battery swapping provides a faster way to replenish power. Currently, there are also dedicated battery swapping systems. These systems are equipped with battery pick-and-place devices and movable swapping units, which are used to replace the batteries in electrical devices.

[0064] The inventors noted that in order to improve battery life, some electrical devices have increased battery capacity; for example, some electric vehicles have two batteries. However, existing battery swapping devices can only carry one battery at a time. For vehicles with two batteries, the swapping device needs to travel back and forth between the vehicle and the battery loading / unloading device at least three times. Moreover, each time the device moves close to the vehicle, it needs to be repositioned before removing or installing the battery to ensure accurate battery removal and installation, resulting in low swapping efficiency.

[0065] To improve efficiency, the inventors considered increasing the number of batteries that the battery swapping device could carry at one time. However, if the battery swapping device carried two batteries, it would be easy for one of the batteries to be outside the working range of the forks of the battery pick-and-place device. The battery pick-and-place device would not be able to take away and recycle both batteries on the battery swapping device, nor would it be able to put two batteries into the battery swapping device.

[0066] To alleviate the low battery swapping efficiency of existing battery swapping devices, this application provides a solution. The battery swapping device includes a movable base, a switching mechanism, and two battery swapping mechanisms. All three mechanisms are mounted on the movable base. Each battery swapping mechanism carries one battery. When the movable base moves the battery swapping device closer to the device, the two swapping mechanisms align with the battery mounting positions on the device, achieving simultaneous disassembly or installation of two batteries in a single positioning operation. The switching mechanism drives the two swapping mechanisms to switch positions, ensuring they are sequentially within the working range of the battery pick-and-place device's forks, thus completing the retrieval and replacement of two batteries. This solution enables the simultaneous replacement of two batteries, reduces the number of back-and-forth movements and positioning operations of the battery swapping device, and improves battery swapping efficiency.

[0067] It should be noted that a battery mounting location refers to a space formed in an electrical device to accommodate a battery. For example, an upwardly recessed groove formed on the chassis of a vehicle, which allows the surface of the battery to be roughly flush with the rest of the chassis when the battery is located in the groove.

[0068] The battery swapping device and system disclosed in this application can be used, but are not limited to, for swapping vehicle batteries. They can also be used for swapping batteries in other electrical equipment such as ships, aircraft, electric toys, power tools, electric vehicles, electric cars, ships, and spacecraft. Electric toys can be fixed or mobile, such as game consoles, electric car toys, electric ship toys, and electric airplane toys; power tools can be fixed or mobile, such as electric motorized tools and electric sweepers; and spacecraft can include airplanes, rockets, space shuttles, and spacecraft.

[0069] The following explanation uses a vehicle as an example to illustrate the battery swapping device and system.

[0070] Please refer to Figure 1 The battery swapping system 1000 includes a battery swapping device 100 and a battery pick-and-place device 200.

[0071] The battery swapping system 1000 also includes a battery charging device (not shown in the figure), which is used to store and charge the batteries 2000. The battery picking and placing device 200 can be a robot, a stacker crane, or other device. The battery picking and placing device 200 is equipped with a fork 201 (the fork 201 can also be replaced by a robotic arm). The fork 201 is used to pick up the batteries 2000 to be charged on the battery swapping device 100 and put them into the battery charging device for recycling. The fully charged batteries 2000 are taken out from the battery charging device and placed on the battery swapping device 100.

[0072] The battery swapping device 100 moves between the vehicle and the battery pick-and-place device 200. The battery swapping device 100 removes the battery 2000 to be charged from the vehicle and transports it to the battery pick-and-place device 200, and installs the fully charged battery 2000 updated by the battery pick-and-place device 200 into the vehicle.

[0073] When the electrical equipment is mobile, such as a vehicle, the battery swapping system 1000 also includes a battery swapping platform 300 for parking the vehicle. The battery swapping device 100 moves between the battery swapping platform 300 and the battery pick-and-place device 200. The battery swapping platform 300 is used to lift the vehicle as a whole, with the vehicle positioned above the battery swapping platform 300. The battery swapping platform 300 has a clearance opening 301, and the vehicle's battery mounting position (not shown in the figure) corresponds to the clearance opening 301. The battery swapping device 100 is parked below the vehicle's clearance opening 301, and the battery swapping mechanism 2 on the battery swapping device 100 passes through the clearance opening 301 to remove or install the battery 2000.

[0074] The battery swapping system 1000 also includes a track 400, one end of which extends into the working range of the forks 201 of the battery pick-and-place device 200, and the other end of which extends into the battery swapping platform 300. The battery swapping device 100 is provided with rollers 12 and a travel drive mechanism 13. The rollers 12 cooperate with the track 400, and the travel drive mechanism 13 drives the rollers 12 to roll on the track 400.

[0075] The walking drive mechanism 13 can be a drive motor, a hydraulic drive rod, etc., such as Figure 2 As shown, in this embodiment, the walking drive mechanism 13 includes a walking motor 131 and a walking gear 132. The walking motor 131 is mounted on the battery swapping device 100, and the walking gear 132 is located at the output end of the walking motor 131. (Combined with...) Figure 1 and Figure 2 As shown, the battery swapping system 1000 also includes a rack 500, which is fixed to the ground and extends along the track 400. The rack 500 meshes with the traveling gear 132. When the traveling motor 131 is working, it drives the traveling gear 132 to rotate on the rack 500, thereby driving the battery swapping device 100 to move.

[0076] Please refer to Figure 3 , Figure 4 and Figure 5 As shown, the battery swapping device 100 includes a movable base 1, a swapping mechanism 3, and two battery swapping mechanisms 2. The movable base 1 is used to move the battery swapping device 100, and is also used to mount the aforementioned rollers 12 and walking drive mechanism 13. The swapping mechanism 3 and the two battery swapping mechanisms 2 are disposed on the movable base 1. Each of the two battery swapping mechanisms 2 carries one battery 2000, so that the battery swapping device 100 can swap two batteries 2000 simultaneously. The swapping mechanism 3 is used to drive the two battery swapping mechanisms 2 to switch positions.

[0077] The battery swapping device 100 only needs to make two round trips between the battery pick-and-place device 200 and the vehicle to replace two batteries 2000. The first round trip: The battery swapping device 100 moves unloaded to the bottom of the vehicle, both battery swapping mechanisms 2 are simultaneously positioned, and the two batteries 2000 to be charged are removed from the vehicle. Then, the battery swapping device 100, carrying the two batteries 2000 to be charged, moves close to the battery pick-and-place device 200, so that one battery swapping mechanism 2 is initially within the working range of the forks 201 of the battery pick-and-place device 200. The battery pick-and-place device 200 removes the battery 2000 to be charged from this battery swapping mechanism 2 and inserts a fully charged battery 2000. Then, the switching mechanism 3 drives the two battery swapping mechanisms 2 to switch positions, so that the other battery swapping mechanism 2 is within the working range of the forks 201 of the battery pick-and-place device 200. The battery pick-and-place device 200 repeats this action to remove the battery 2000 to be charged from the other battery swapping mechanism 2 and insert a fully charged battery 2000. Second round trip: The battery swapping device 100 carries two fully charged batteries 2000 to the bottom of the vehicle. The two battery swapping mechanisms 2 are positioned simultaneously and the two fully charged batteries 2000 are installed in the battery mounting position of the vehicle. Then, it returns to its original position without load, waiting for the next work.

[0078] Existing battery swapping devices require at least three round trips to replace two batteries. These devices also require positioning on the bottom of the vehicle before both battery removal and installation, totaling four positioning operations throughout the swapping process, with only one battery being replaced at a time. In contrast, the battery swapping device 100 provided in this embodiment can simultaneously replace two batteries 2000, reducing the number of round trips and positioning operations on the vehicle's bottom. The removal and installation of both batteries 2000 are performed concurrently, effectively improving swapping efficiency and solving the problem of low swapping efficiency.

[0079] The battery swapping device 100 provided in this embodiment can not only be used to swap two batteries 2000 simultaneously, but also improves the battery swapping efficiency when swapping a vehicle carrying only one battery 2000. One battery swapping mechanism 2 of the device 100 is unloaded, while the other battery swapping mechanism 2 carries a fully charged battery 2000 and moves to the bottom of the vehicle. The unloaded battery swapping mechanism 2 first positions and removes the battery 2000 to be charged. Then, the switching mechanism 3 drives the two battery swapping mechanisms 2 to switch positions, positioning the other battery swapping mechanism 2 carrying the fully charged battery 2000 and installing it into the vehicle. The battery swapping device 100 then carries the battery 2000 to the battery pick-and-place device 200. Existing battery swapping devices require at least two round trips, while this embodiment only requires one, effectively improving the battery swapping efficiency and solving the problem of low battery swapping efficiency. Furthermore, since the two battery swapping mechanisms 2 can be swapped, as long as the unloaded battery swapping mechanism 2 is accurately positioned, the battery swapping mechanism 2 carrying a fully charged battery 2000 can be accurately positioned by simply swapping its position through the swapping mechanism 3. This reduces the difficulty of positioning, speeds up the positioning process, and improves the battery swapping efficiency.

[0080] like Figure 5 As shown, the switching mechanism 3 includes a driving component 32 and a rotating base 31. The driving component 32 is used to drive the rotating base 31 to rotate on the movable base 1. Two power swapping mechanisms 2 are installed on the rotating base 31. When the rotating base 31 rotates, the two power swapping mechanisms 2 switch positions. Figure 5 The rotation axis a of the rotating seat 31 is shown, and the two power swapping mechanisms 2 are symmetrically arranged about the rotation axis a of the rotating seat 31.

[0081] Combination Figure 5 and Figure 6 As shown, one side of the rotating base 31 is connected to the movable base 1, and the other side of the rotating base 31 is used to install two battery swapping mechanisms 2. The rotation axis a of the rotating base 31 is perpendicular to the horizontal plane. When the rotating base 31 rotates, the positions of the two battery swapping mechanisms 2 change.

[0082] Because the two power exchange mechanisms 2 are symmetrical about the rotating base 31, the rotating base 31 rotates horizontally by 180°, and the two power exchange mechanisms 2 exchange positions, that is, the two power exchange mechanisms 2 are in each other's positions, and the switching method is simple and convenient.

[0083] In existing vehicles, some have battery mounting positions perpendicular to the length of the vehicle body (i.e., arranged laterally), while others have battery mounting positions along the length of the vehicle body (i.e., arranged longitudinally). In this embodiment, the battery swapping device 100, when its rotating base 31 rotates 90°, allows the batteries 2000 carried by the two battery swapping mechanisms 2 to switch between the corresponding lateral or longitudinal orientation. If the vehicle's battery mounting positions are arranged in other directions relative to the vehicle body, the rotation angle of the rotating base 31 can be adjusted to other angles. Therefore, regardless of the arrangement of the vehicle's battery mounting positions, by driving the rotating base 31 to rotate at an appropriate angle via the driving component 32, the two battery swapping mechanisms 2 and their carried batteries 2000 can be aligned with the arrangement direction of the battery mounting positions on the vehicle body. The battery swapping device 100 provided in this embodiment not only improves battery swapping efficiency but also has wide applicability.

[0084] In other embodiments of this application, the two battery swapping mechanisms 2 can also be swapped in other ways. For example, the swapping mechanism 3 includes a conveyor belt and a rocker arm. The conveyor belt is mounted on the movable base 1. The two battery swapping mechanisms 2 are both located on the conveyor belt and arranged along the moving direction of the conveyor belt. For ease of description, the two battery swapping mechanisms 2 are referred to as the first battery swapping mechanism 2 and the second battery swapping mechanism 2, respectively. One end of the rocker arm is connected to the movable base 1 and the other end is connected to the first battery swapping mechanism 2. When the rocker arm swings, it raises the first battery swapping mechanism 2 and removes it from the conveyor belt to make room so that the conveyor belt can move the second battery swapping mechanism 2 to the position of the first battery swapping mechanism 2. Then the rocker arm continues to swing to place the first battery swapping mechanism 2 at the position of the second battery swapping mechanism 2.

[0085] like Figure 6 , Figure 7 and Figure 8 As shown, the drive unit 32 is fixed to the movable base 1, and the switching mechanism 3 also includes a first gear 321 and a second gear 311 that mesh with each other. The first gear 321 is installed at the output end of the drive unit 32, and the second gear 311 is fixed to the rotating base 31.

[0086] like Figure 6 As shown, the movable base 1 includes a base body 11 and a base 14. The base 14 is mounted on the base body 11 and has a bearing 141. The aforementioned rollers 12 and the walking drive mechanism 13 are both mounted on the base body 11. The drive unit 32 is a servo motor mounted on the base body 11. The output end of the servo motor is connected to the shaft of the first gear 321 to drive the first gear 321 to rotate. The second gear 311 is fixed on the side of the rotating seat 31 near the movable base 1. The second gear 311 is connected to the bearing 141 and meshes with the first gear 321. Thus, when the drive unit 32 drives the first gear 321 to rotate, the second gear 311 will rotate accordingly, driving the rotating seat 31.

[0087] Since the first gear 321 and the second gear 311 are arranged on the same plane, the distance between the rotating seat 31 and the moving base 1 is small, the overall structure of the battery swapping device 100 is compact, the center of gravity is low, the movement is stable, and the passability is good, making it easy to move to the bottom of the vehicle.

[0088] Optionally, the output shaft of the servo motor extends horizontally, and the shaft of the first gear 321 extends vertically. The output shaft of the servo motor and the shaft of the first gear 321 are driven by a bevel gear set to further reduce the vertical space occupation.

[0089] In some embodiments, the drive element 32 may also be other drive components. For example, the drive element 32 includes a cylinder and a rack 500. The rack 500 meshes with the first gear 321. The rack 500 is connected to the output end of the cylinder. The output end of the cylinder drives the rack 500 to move so as to drive the first gear 321 to rotate.

[0090] In some embodiments, such as Figure 9 As shown, the two battery swapping mechanisms 2 are spaced apart, meaning there is a certain distance between them. This distance prevents the two battery swapping mechanisms 2 from interfering with each other and prevents the two batteries 2000 carried by the two battery swapping mechanisms 2 from interfering with each other, ensuring that the two battery swapping mechanisms 2 can replace the batteries 2000 independently.

[0091] Please combine Figure 4 , Figure 5 , Figure 10 and Figure 11 As shown, the battery swapping mechanism 2 includes an unlocking / locking assembly 21, which includes a base plate 211 and an unlocking / locking unit 212, with the unlocking / locking unit 212 mounted on the base plate 211. The battery swapping mechanism 2 also includes a protective cover 22, which covers the base plate 211. The protective cover 22 has a first opening 221 for the unlocking / locking unit 212 to extend out, so that the unlocking / locking unit 212 can lock or unlock the battery 2000, thereby fixing the battery 2000 to the battery mounting position of the vehicle, or removing the battery 2000 from the battery mounting position of the vehicle.

[0092] like Figure 12As shown, the battery 2000 is generally equipped with a fastening bolt 2001, and the vehicle chassis is equipped with a movable nut 3001. The fastening bolt 2001 and the movable nut 3001 are threaded together. The locking / unlocking unit 212 is used to screw the fastening bolt 2001 into the movable nut 3001 to fix the battery 2000 in the battery mounting position, and to unscrew the fastening bolt 2001 from the movable nut 3001 to remove the battery 2000. For example, the locking / unlocking unit 212 includes a locking / unlocking drive motor 2121 and a bolt sleeve 2122. One end of the bolt sleeve 2122 is connected to the output end of the locking / unlocking drive motor 2121, and the other end of the bolt sleeve 2122 is engaged with the fastening bolt 2001. The locking / unlocking drive motor 2121 drives the bolt sleeve 2122 to rotate forward or backward, thereby causing the fastening bolt 2001 to be screwed into or out of the movable nut 3001. In other embodiments, the locking / unlocking unit 212 may also employ other methods for locking and unlocking the battery 2000.

[0093] The protective cover 22 covers the outside of the locking / unlocking component 21 to protect the locking / unlocking component 21. For example, when the forks 201 of the stacker crane pick up or put down the battery 2000 on the battery swapping mechanism 2, the protective cover 22 prevents the forks 201 from directly colliding with the locking / unlocking component 21, thus avoiding damage to the locking / unlocking component 21. The protective cover 22 does not affect the locking / unlocking unit 212 from locking or unlocking the battery 2000.

[0094] like Figure 4 , Figure 10 and Figure 11 As shown, the unlocking / unlocking assembly 21 also includes a positioning member 214 and a support member 213. Both the positioning member 214 and the support member 213 are mounted on the base plate 211. The protective cover 22 has a second opening 222 and a third opening 223. The positioning member 214 extends from the second opening 222, and the support member 213 extends from the third opening 223. The positioning member 214 is used to position the battery 2000, and the support member 213 is used to support the battery 2000.

[0095] like Figure 4 As shown, each battery swapping mechanism 2 has multiple support members 213, which together support one battery 2000. Each battery 2000 is placed on the battery swapping mechanism 2 through multi-point support, ensuring the stability of the battery 2000. Under the action of the support members 213, the stress on the protective cover 22 is reduced, making it less prone to damage.

[0096] like Figure 12As shown, the battery 2000 has a first pin hole 2002 on its outer periphery. A positioning member 214 passes through the first pin hole 2002 to position the battery 2000 relative to the unlocking / unlocking assembly 21. Optionally, a second pin hole (not shown) is provided in the vehicle chassis 3000. The positioning member 214 passes through the first pin hole 2002 and enters the second pin hole to position the battery 2000 on the vehicle chassis 3000. The positioning member 214 is configured as a pin, with a tapered end and a beveled outer periphery to facilitate guiding the pin into the first pin hole 2002 and the second pin hole, reducing positioning difficulty.

[0097] With the cooperation of the positioning component 214 and the support component 213, the unlocking component 21, the battery 2000 and the vehicle chassis 3000 are positioned to ensure that the battery 2000 corresponds to the battery mounting position on the vehicle chassis 3000.

[0098] Optionally, the support member 213 includes a first support block 2131, a second support block 2132, and an elastic member 2133, with the elastic member 2133 connected between the first support block 2131 and the second support block 2132. The first support block 2131 is fixedly connected to the base plate 211, and the elastic member 2133 supports the second support block 2132 to extend elastically from the third opening 223 of the protective cover 22, with the second support block 2132 contacting the bottom surface of the battery 2000.

[0099] The support member 213 provides vertical mobility between the battery 2000 and the unlocking unit 212. When subjected to external force, the support member 213 is compressed, and the battery 2000 moves closer to the unlocking unit 212, where the unlocking unit 212 engages with the fastening bolt 2001 of the battery 2000. When the external force disappears, the support member 213 returns to its original deformation, and the battery 2000 moves relatively away from the unlocking unit 212, separating the unlocking unit 212 from the fastening bolt 2001. The support member 213 facilitates the unlocking and disengagement of the battery 2000, avoids interference between the unlocking unit 212 and the battery 2000, and makes it convenient to remove or insert the battery 2000 on the battery swapping mechanism 2.

[0100] To further protect the unlocking / unlocking component 21 and the battery 2000, such as Figure 11 As shown, the protective cover 22 is also provided with a slot 224, which is located on the side of the protective cover 22 away from the unlocking component 21. The slot 224 is used for the fork 201 to insert to pick up and put in the battery 2000.

[0101] The stacker crane's forks 201 have two arms (see reference). Figure 1 ),like Figure 11 As shown, each protective cover 22 has two parallel and spaced slots 224. When the battery swapping mechanism 2 carries the battery 2000, the slots 224 are located below the battery 2000 (see reference). Figure 3Each slot 224 is open at both ends, allowing the two arms of the fork 201 to enter horizontally from the ends of the two slots 224 respectively, so that the two arms are located at the bottom of the battery 2000. The two arms can be raised to lift the battery 2000 from the battery swapping mechanism 2, thereby removing the battery 2000. When it is necessary to place the battery 2000 on the battery swapping mechanism 2, the two arms are first lowered so that the battery 2000 contacts the support member 213. At this time, the two arms fall into the two slots 224 respectively. The two arms move horizontally out of the two slots 224, and the battery pick-and-place device 200 completes the action of placing the fully charged battery 2000 on the battery swapping mechanism 2.

[0102] The slot 224 facilitates the loading and unloading of the battery 2000 by the forks 201. Furthermore, the forks 201 are first lowered to below the bottom surface of the battery 2000, and then moved horizontally to enter or exit the slot 224. The forks 201 do not contact the bottom surface of the battery 2000 during the horizontal movement, thus preventing damage to the battery 2000.

[0103] The battery swapping mechanism 2 also includes a lifting assembly 23, which is used to lift the unlocking assembly 21.

[0104] like Figure 13 and Figure 14 As shown, the lifting assembly 23 includes a scissor-lift support arm 231, a lifting drive component 232, and a mounting base 233. The unlocking / unlocking assembly 21 is mounted on the mounting base 233. The upper end of the scissor-lift support arm 231 is connected to the mounting base 233, and the lower end of the scissor-lift support arm 231 is connected to a rotating base 31. The lifting drive component 232 drives the scissor-lift support arm 231 to lift and lower, thereby causing the unlocking / unlocking assembly 21 on the mounting base 233 to lift and lower.

[0105] The scissor-type support arm 231 includes a first support rod 2311, a second support rod 2312, a first bearing seat 2313, a second bearing seat 2314, a first slide rail 2315, and a second slide rail 2316. The middle portions of the first support rod 2311 and the second support rod 2312 are connected by a pivot. One end of the first support rod 2311 is connected to the first bearing seat 2313, and the other end of the first support rod 2311 is provided with a first slider 23111, which is slidably connected to the first slide rail 2315. One end of the second support rod 2312 is connected to the second bearing seat 2314, and the other end of the second support rod 2312 is provided with a second slider 23121, which is slidably connected to the second slide rail 2316. The first bearing seat 2313 and the second slide rail 2316 are fixed to a rotating base 31, and the second bearing seat 2314 and the first slide rail 2315 are fixed to a mounting base 233.

[0106] The lifting drive component 232 includes a lifting motor 2321, a lead screw 2322, and a nut 2323. The lifting motor 2321 and the lead screw 2322 are mounted on the rotating base 31. The lead screw 2322 is parallel to the first slide rail 2315 and the second slide rail 2316. The output end of the lifting motor 2321 is connected to the lead screw 2322 to drive the lead screw 2322 to rotate. The nut 2323 is threadedly engaged with the lead screw 2322, and the nut 2323 is fixedly connected to the second slider 23121.

[0107] When the lifting motor 2321 is working, the lead screw 2322 rotates, and the nut 2323 moves along the lead screw 2322, which drives the second slider 23121 to move along the second slide rail 2316, thereby driving the first support rod 2311 and the second support rod 2312, so that the unlocking and disengaging assembly 21 installed on the mounting base 233 is raised and lowered.

[0108] The lifting assembly can also be driven by hydraulic cylinders, pneumatic cylinders, electric cylinders, lead screws 2322 and nut 2323 assemblies, etc., that is, the scissor support arm 231 is driven by hydraulic cylinders, pneumatic cylinders, electric cylinders, lead screws 2322 and nut 2323 assemblies, etc., or the unlocking and disengaging assembly 21 is directly installed at the output end of the hydraulic cylinders, pneumatic cylinders, electric cylinders, lead screws 2322 and nut 2323 assemblies, etc.

[0109] By setting up the lifting component 23, the battery swapping device 100 is lowered during movement, making the overall structure of the battery swapping device 100 more compact and the center of gravity lower, thus improving the passability of the battery swapping device 100. When the battery swapping device 100 reaches the electrical equipment, the lifting component 23 lifts the battery swapping mechanism 2, which allows the unlocking component 21 to approach the chassis 3000 of the vehicle to perform positioning, battery 2000 unlocking and locking actions, thereby completing the removal and installation of the battery 2000.

[0110] In some embodiments, the unlocking component is floatingly connected to the lifting component 23.

[0111] like Figure 15 As shown, the base plate 211 of the unlocking / unlocking assembly 21 is located above the mounting base 233, with a gap between the base plate 211 and the mounting base 233. The base plate 211 is provided with multiple support columns 2111, which are bent and extend below the mounting base 233. The support columns 2111 and the mounting base 233 are connected by a chain 2112. The length of the chain 2112 is less than the length of the support columns 2111, so that the base plate 211 and the mounting base 233 are kept apart, allowing the base plate 211 to float above the mounting base 233.

[0112] In this embodiment, the base plate 211 is rectangular, and the area of ​​the mounting base 233 is smaller than that of the base plate 211. The horizontal projection of the base plate 211 covers the mounting base 233. The base plate 211 is provided with four support columns 2111, which are located at the four corners of the rectangle. The mounting base 233 is provided with four chains 2112. Each support column 2111 is L-shaped, with one end connected to the base plate 211 and the other end connected to the chain 2112. The four support columns 2111 and the four chains 2112 work together to ensure that the base plate 211 and the four support columns 2111 do not contact the mounting base 233, thus preventing the unlocking / unlocking assembly 21 from being obstructed from floating.

[0113] Since the two unlocking components 21 are respectively floatingly mounted on the lifting component 23, each of the two unlocking components 21 has a horizontal adjustment margin during the positioning process. When there is a positional error between the unlocking component 21 and the battery mounting position of the vehicle, the unlocking component 21 can move horizontally to adjust its position, ensuring that the two batteries 2000 correspond to the battery mounting positions of the vehicle respectively.

[0114] According to some embodiments of this application, this application provides a battery swapping system 1000, such as... Figure 1 As shown, the device includes a track 400, a battery swapping device 100 as described above, a battery swapping platform 300, and a battery pick-and-place device 200. The battery swapping platform 300 is located at one end of the track 400, the battery pick-and-place device 200 is located at the other end of the track 400, and the battery swapping device 100 is movably mounted on the track 400.

[0115] Because the battery swapping device 100 can replace two batteries 2000 simultaneously with high swapping efficiency; the battery swapping device 100 also has high swapping efficiency when replacing only one battery 2000; the swapping mechanism 3 of the battery swapping device 100 can also adjust the position of the battery swapping mechanism 2 and the battery 2000 it carries to adapt to the battery installation position of vehicles in different directions, the battery swapping system 1000 provided in this application embodiment has a wide range of applications, meets the battery swapping needs of various types of vehicles (or other electrical equipment), and has high swapping efficiency.

[0116] According to some embodiments of this application, in conjunction with Figures 3-15As shown, this application provides a battery swapping device 100, which includes a movable base 1, a swapping mechanism 3, and two swapping mechanisms 2. The swapping mechanism 3 and the two swapping mechanisms 2 are disposed on the movable base 1. The two swapping mechanisms 2 are used to carry two batteries 2000, so that the battery swapping device 100 can swap two batteries 2000 simultaneously. The swapping mechanism 3 is used to drive the two swapping mechanisms 2 to change positions. The swapping mechanism 3 includes a driving member 32 and a rotating seat 31, which are mounted on the movable base 1. The driving member 32 is used to drive the rotating seat 31 to rotate on the movable base 1 about a vertical rotation axis a. The driving member 32 is a servo motor, combined with... Figure 2 As shown, the output end of the servo motor is equipped with a first gear 321, and the rotating base 31 is equipped with a second gear 311. The first gear 321 and the second gear 311 mesh, and the servo motor drives the rotating base 31 to rotate through the first gear 321 and the second gear 311. Figure 9 As shown, two battery swapping mechanisms 2 are spaced apart on the rotating base 31, and the two battery swapping mechanisms 2 are symmetrical about the rotation axis a of the rotating base 31.

[0117] Each battery swapping mechanism 2 includes a lifting assembly 23, an unlocking assembly 21, and a protective cover 22. The lifting assembly 23 is connected to the rotating base 31, the unlocking assembly 21 is connected to the lifting assembly 23, and the protective cover 22 covers the unlocking assembly 21. The lifting assembly 23 includes a scissor-type support arm 231, a lifting drive component 232, and a mounting base 233. The scissor-type support arm 231 connects the rotating base 31 and the mounting base 233. The lifting drive component 232 drives the scissor-type support arm 231 to move, thereby raising or lowering the mounting base 233 relative to the rotating base 31. The unlocking assembly 21 includes a base plate 211, four unlocking units 212, four positioning components 214, and six support components 213. All four unlocking units 212, four positioning components 214, and six support components 213 are mounted on the base plate 211. The base plate 211 is floatingly connected to the mounting base 233 via a chain 2112 and a support column 2111, allowing the unlocking / unlocking assembly 21 to have a horizontal range of motion relative to the mounting base 233. A protective cover 22 is connected to the base plate 211 and has four first openings 221, four second openings 222, and six third openings 223. The four first openings 221 correspond to the positions of the four unlocking / unlocking units 212, the four second openings 222 correspond to the positions of the four positioning members 214, and the six third openings 223 correspond to the positions of the six support members 213. The six support members 213 extend from the six third openings 223 to support the battery 2000. The four positioning members 214 extend from the four second openings 222 and cooperate with the positioning structure on the vehicle to position the battery 2000. The four unlocking / unlocking units 212 extend from the four first openings 221 to drive the external fastening bolts 2001 of the battery 2000 to rotate.

[0118] In this embodiment, six support members 213 are evenly distributed in the middle of the base plate 211 to provide uniform support force to the battery 2000. Figure 4 As shown, four support members 213 are used to support the four corners of the battery 2000, and two support members 213 are used to support the middle position of the battery 2000. Four positioning members 214 are distributed along the edge of the base plate 211 to make room for placing the battery 2000. Four locking and unlocking components 21 are positioned close to the four support members 213 so as to be close to the outer periphery of the battery 2000 and drive the fastening bolts 2001 provided on the outside of the battery 2000.

[0119] Please combine Figures 1-4 and Figures 16-20 As shown, the battery swapping process of the battery swapping device 100 is as follows:

[0120] This embodiment illustrates the battery swapping process of a vehicle with two horizontally mounted batteries 2000. In this vehicle, the length direction of the batteries 2000 is perpendicular to the length direction of the vehicle body. The two batteries 2000 are arranged along the length direction of the vehicle body. When the vehicle is parked on the battery swapping platform 300, the length direction of the vehicle body is perpendicular to the track 400. The battery mounting position on the chassis is above the clearance opening 301 of the battery swapping platform 300. In this application, the length direction of the vehicle body refers to the direction from the front to the rear of the vehicle. That is, when the vehicle is parked on the battery swapping platform 300, the front of the vehicle is above one side of the track 400, and the rear of the vehicle is above the other side of the track 400. The two batteries 2000 are arranged along the direction from the front to the rear of the vehicle and connected to the battery mounting position on the chassis, with the batteries 2000 above the clearance opening 301.

[0121] Combination Figure 16 As shown, the battery swapping device 100 moves unloaded along the track 400 to the battery swapping platform 300 until it is below the clearance opening 301 of the battery swapping platform 300. Then, the drive unit 32 drives the rotating seat 31 to rotate 90°, and the two battery swapping mechanisms 2 adjust their positions, as shown. Figure 17 As shown, the two battery swapping mechanisms 2 are respectively aligned with the two horizontally placed battery mounting positions on the chassis.

[0122] Next, the lifting assembly 23 lifts the locking and unlocking assembly 21. The positioning part 214 on the locking and unlocking assembly 21 engages with the positioning structure (i.e., the second pin hole) on the chassis. The positioning part 214 is a pin with a conical end. When there is an error in the position of the locking and unlocking assembly 21, the inner wall of the second pin hole acts on the conical part of the pin and generates a guiding force, causing the base plate 211 to move horizontally relative to the mounting base 233, thereby aligning the second pin hole with the pin, and thus allowing the locking and unlocking assembly 21 to adaptively adjust to the accurate position.

[0123] The lifting assembly 23 continues to lift, and the support member 213 on the unlocking assembly 21 contacts the battery 2000. When the lifting assembly 23 is lifted into place, the battery 2000 compresses the support member 213. The unlocking unit 212 cooperates with the fastening bolt 2001 on the battery 2000. The unlocking unit 212 unscrews the fastening bolt 2001 out of the chassis and unlocks the battery 2000 that is waiting to be charged.

[0124] like Figure 18 As shown, after the unlocking components 21 of the two battery swapping mechanisms 2 unlock the batteries 2000 respectively, the lifting component 23 descends, and the two battery swapping mechanisms 2 carry their respective unlocked batteries 2000 to be charged. Then, as... Figure 19 As shown, the driving component 32 drives the rotating seat 31 to rotate 90°, so that the two battery swapping mechanisms 2 adjust their positions, and the battery swapping device 100 moves along the track 400 toward the battery pick-and-place device 200.

[0125] like Figure 20 As shown, the battery swapping device 100 returns along the track 400 to the battery pick-and-place device 200. One of the battery swapping mechanisms 2 is close to the working range of the forks 201 of the battery pick-and-place device 200. The forks 201 are inserted into the slots 224 of the protective cover 22 of the battery swapping mechanism 2, lifting the battery 2000 to be charged upwards away from the battery swapping mechanism 2 and placing it back into the battery charging device. Then, a fully charged battery 2000 is placed in the battery swapping mechanism 2. During the placement of the fully charged battery 2000, the positioning member 214 on the locking / unlocking assembly 21 engages with the first pin hole 2002 on the battery 2000. When there is an error in the position of the battery 2000, the inner wall of the first pin hole 2002 acts on the conical part of the pin and generates a guiding force, causing the base plate 211 to move horizontally relative to the mounting base 233, thereby aligning the first pin hole 2002 with the pin, and thus accurately positioning the battery 2000.

[0126] Then, the drive unit 32 drives the rotating seat 31 to rotate 180°, and the two battery swapping mechanisms 2 exchange positions, so that the other battery swapping mechanism 2 is within the working range of the forks 201 of the battery pick-and-place device 200. The battery pick-and-place device 200 repeats the action to take away the battery 2000 to be charged from the other battery swapping mechanism 2 and put in the fully charged battery 2000.

[0127] After both batteries 2000 are replaced, the battery swapping unit 100, carrying the two fully charged batteries 2000, moves along the track 400 to the battery swapping platform 300. The drive unit 32 drives the rotating seat 31 to rotate 90°, and the two battery swapping mechanisms 2 adjust their positions, aligning them again with the two battery mounting positions on the chassis. The lifting assembly 23 lifts the locking and unlocking assembly 21, and with the positioning component 214 engaging with the second pin hole on the chassis, the locking and unlocking assembly 21 and the batteries 2000 are accurately positioned relative to the vehicle chassis, ensuring that the batteries 2000 enter the battery mounting positions. Next, the locking and unlocking unit 212 drives the fastening bolts 2001 on the batteries 2000 to engage with the movable nuts 3001 on the chassis to lock the batteries 2000.

[0128] After the two batteries 2000 are locked, the lifting assembly 23 descends and returns to its initial position to await the next battery swap. The initial position is any position on the track 400 that does not interfere with the operation of the battery loading / unloading device 200 and the battery swapping platform 300.

[0129] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A battery swapping device for replacing the battery of an electrical device, characterized in that, include: A movable base is used to move the battery swapping device. Two battery swapping mechanisms are disposed on the mobile base, and each of the two battery swapping mechanisms is used to carry one of the batteries so that the battery swapping device can replace two batteries at the same time. A switching mechanism is provided on the movable base. The switching mechanism is configured to drive the two battery swapping mechanisms to switch positions so that the two battery swapping mechanisms are successively within the working range of the forks of the battery pick-and-place device, and so that the battery pick-and-place device removes the battery to be charged from each battery swapping mechanism and replaces the battery that is placed there with a fully charged battery.

2. The battery swapping device according to claim 1, characterized in that, The switching mechanism includes a driving component and a rotating base. The driving component is used to drive the rotating base to rotate. The two battery swapping mechanisms are mounted on the rotating base and are symmetrically arranged about the rotation axis of the rotating base.

3. The battery swapping device according to claim 2, characterized in that, The driving component is fixed to the movable base, and the switching mechanism further includes a first gear and a second gear that mesh with each other. The first gear is installed at the output end of the driving component, and the second gear is fixed to the rotating seat.

4. The battery swapping device according to claim 1, characterized in that, The two battery swapping stations are spaced apart.

5. The battery swapping device according to claim 1, characterized in that, The battery swapping mechanism includes a locking / unlocking component and a protective cover. The locking / unlocking component includes a base plate and a locking / unlocking unit. The locking / unlocking unit is used to lock or unlock the battery. The protective cover covers the base plate and has a first opening for the locking / unlocking unit to extend out.

6. The battery swapping device according to claim 5, characterized in that, The unlocking / unlocking assembly further includes a positioning member for positioning the battery and a support member for supporting the battery. The protective cover is provided with a second opening for the positioning member to extend out and a third opening for the support member to extend out.

7. The battery swapping device according to claim 5, characterized in that, The protective cover has a slot on the side opposite to the unlocking / unlocking assembly, the slot being used for inserting forks to retrieve or place the battery.

8. The battery swapping device according to any one of claims 5-7, characterized in that, The battery swapping mechanism also includes a lifting assembly for lifting the unlocking / unlocking assembly.

9. The battery swapping device according to claim 8, characterized in that, The unlocking / unlocking component is floatingly connected to the lifting component.

10. A battery swapping system, characterized in that, include: track; The battery swapping device as described in any one of claims 1-9 is movably disposed on the track; The battery swapping platform is located at one end of the track; A battery loading and unloading device is located at the other end of the track.

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