Battery swap trolley and battery swap system

Abstract

A battery swap trolley and a battery swap system. The battery swap trolley comprises a main body (1), a fixed frame (2), a movable frame (3) and a movable device (4), wherein the fixed frame (2) is fixed to the main body (1), and is configured for placement of a battery (5); the movable frame (3) is mounted to the movable device (4), is located above the fixed frame (2) and overlaps the fixed frame (2), and the movable frame (3) is configured for placement of the battery (5); during a swap process of the battery (5), the movable frame (3) can horizontally move at a first level above the fixed frame (2), and perform lifting motion between the first level and a second level of the fixed frame (2); and the movable device (4) is mounted to the main body (1), and is connected to the movable frame (3), and the movable device (4) is configured to drive the movable frame (3) to perform horizontal movement and lifting motion. The battery swap system comprises a transfer robot and the battery swap trolley, wherein the transfer robot comprises a battery compartment (6). When a battery (5) in the battery compartment (6) is swapped, the fixed frame (2) or the movable frame (3) of the battery swap trolley is aligned with the battery compartment (6). The battery swap trolley and the battery swap system can reduce the footprint of the battery swap trolley.

Description

Battery replacement vehicle and battery replacement system

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on February 23, 2024, with application number 202420341885.0 and application name “Battery Replacement Vehicle and Battery Replacement System”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of intelligent warehousing technology, and in particular to a battery replacement vehicle and a battery replacement system. Background Art

[0003] With the development of the warehouse logistics robot industry, the robot's operating hours have a significant impact on the overall system's efficiency. The robot's battery life sets a lower limit for the system's efficiency. Especially during peak hours in warehouse logistics, relying solely on the robot's self-charging can slow logistics operations due to long charging times. Manual battery replacement by staff is more efficient. Furthermore, there are instances where the robot cannot recharge itself, requiring manual battery replacement to continue operation. This necessitates manual transport of batteries for manual replacement.

[0004] For the carts used to transport batteries manually, due to the large size of the batteries and the entire vehicle, the carts take up a large space and are inconvenient to operate in narrow passages, thus affecting the efficiency of the battery replacement process, the cost of the battery replacement carts, and the safety of the battery replacement process. Summary of the Invention

[0005] In order to solve or partially solve the problems existing in the related art, the present application provides a battery replacement vehicle and a battery replacement system, which can reduce the floor space and working space of the battery replacement vehicle.

[0006] The first aspect of the present application provides a battery replacement vehicle, which includes a main body, a fixed frame, a movable frame and a movable device; the fixed frame is fixed to the main body, and the fixed frame is used to place batteries; the movable frame is installed on the movable device, the movable frame is located above the fixed frame and overlaps with the fixed frame, and the movable frame is used to place batteries; during the battery replacement process, the movable frame can move horizontally at a first height above the fixed frame, and perform lifting and lowering movements between the first height and the second height of the fixed frame; the movable device is installed on the main body and connected to the movable frame, and the movable device is used to drive the movable frame to perform the horizontal movement and the lifting and lowering movements.

[0007] Furthermore, the moving device includes a lifting mechanism and a translation mechanism, the lifting mechanism is installed on the main body, the lifting mechanism is connected to the translation mechanism, the moving frame is installed on the translation mechanism, the moving frame moves horizontally at the first height through the translation mechanism, and the lifting mechanism drives the translation mechanism to drive the moving frame to perform lifting and lowering movements between the first height and the second height.

[0008] Furthermore, the lifting mechanism includes a hydraulic cylinder, a roller and a chain, the hydraulic cylinder is fixed to the main body, the hydraulic cylinder is connected to the roller, the hydraulic cylinder drives the roller to rise and fall, the chain is hung on the roller, one end of the chain is fixed to the main body, and the other end of the chain is fixed to the translation mechanism.

[0009] Furthermore, the main body is provided with a vertically extending guide rod, the fixed frame is installed at the bottom end of the guide rod, the translation mechanism is provided with a first guide wheel, a second guide wheel and a limit rod, the guide rod is clamped between the first guide wheel and the second guide wheel, the first guide wheel is located above the second guide wheel, the limit rod is located between the first guide wheel and the second guide wheel, and the limit rod abuts against one side of the guide rod.

[0010] Furthermore, the translation mechanism includes a mounting frame and a telescopic mechanism, the mounting frame is connected to the lifting mechanism, the telescopic mechanism is installed on the mounting frame, and the movable frame is installed on the telescopic mechanism. When the telescopic mechanism drives the movable frame to extend horizontally, an avoidance groove is formed between the movable frame and the mounting frame. When the lifting mechanism drives the mounting frame to descend to the second height, the fixed frame is located in the avoidance groove.

[0011] Furthermore, the movable frame includes a first locking portion, and the translation mechanism is provided with a second locking portion. When the movable frame is located at the first height, the translation mechanism fixes the movable frame by docking the first locking portion and the second locking portion.

[0012] Furthermore, the mobile rack includes a first buckling portion, and the first buckling portion is used to fix the battery located on the mobile rack.

[0013] Furthermore, the fixing bracket includes a second buckling portion, and the second buckling portion is used to fix the battery located on the fixing bracket.

[0014] Furthermore, the movable frame and the fixed frame both include a placement table and a flow bar, the flow bar is located on the upper surface of the placement table, and the flow bar extends in a horizontal direction.

[0015] Furthermore, the movable frame and the fixed frame both include a buffer pad, which is installed on a side of the placement table and is located in the output direction of the flow strip.

[0016] Furthermore, the movable frame and the fixed frame are both provided with support members, and when the movable frame is lowered to the second height, the bottom ends of the support members are flush with the bottom end of the main body.

[0017] The second aspect of the present application provides a battery replacement system, which includes a transport robot and a battery replacement vehicle shown in any embodiment of the first aspect above, the transport robot includes a battery compartment; when replacing the battery in the battery compartment, the fixed frame or the movable frame of the battery replacement vehicle is aligned with the battery compartment.

[0018] The technical solution provided by the present application may include the following beneficial effects: the movement of the mobile frame is controlled by a mobile device, so that the mobile frame can move horizontally at a first height above the fixed frame, and perform lifting and lowering movements between the first height and the second height of the fixed frame. When the mobile frame is not in use, the mobile frame can be moved to the first height above the fixed frame. At this time, only the main body and the fixed frame occupy the ground space, thereby saving the overall ground space of the battery replacement vehicle, making it convenient for the battery replacement vehicle to pass through narrow passages, and during the battery replacement process, the fixed frame and the mobile frame of the battery replacement vehicle are arranged front to back, allowing the battery replacement vehicle to perform battery replacement operations in narrow passages, thereby improving the efficiency of battery replacement.

[0019] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and other objects, features and advantages of the present application will become more apparent by describing in more detail exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0021] FIG1 is a schematic diagram of a battery replacement vehicle and a battery compartment according to an embodiment of the present application;

[0022] FIG2 is a schematic structural diagram of a battery replacement vehicle according to an embodiment of the present application;

[0023] FIG3 is a schematic structural diagram of a fixing frame according to an embodiment of the present application;

[0024] FIG4 is a schematic structural diagram of a mobile rack according to an embodiment of the present application;

[0025] FIG5 is a schematic diagram of a battery according to an embodiment of the present application;

[0026] FIG6 is a schematic diagram of the translation mechanism in operation shown in an embodiment of the present application;

[0027] FIG7 is a schematic diagram of the lifting mechanism shown in an embodiment of the present application when in operation.

[0028] Figure numerals: main body 1; guide rod 11; fixed frame 2; second placement platform 21; second smooth bar 22; second buckling part 23; second buffer pad 24; movable frame 3; first placement platform 31; first smooth bar 32; first buckling part 33; first buffer pad 34; support member 35; first locking part 36; moving device 4; lifting mechanism 41; hydraulic cylinder 411; roller 412; chain 413; translation mechanism 42; mounting frame 421; telescopic mechanism 422; first guide wheel 423; second guide wheel 424; limiting rod 425; second locking part 426; battery 5; battery compartment 6. DETAILED DESCRIPTION

[0029] The following describes embodiments of the present application in more detail with reference to the accompanying drawings. Although the accompanying drawings illustrate embodiments of the present application, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0030] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] In the description of this application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0032] Unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," and the like should be interpreted broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0033] In response to the above problems, an embodiment of the present application provides a battery replacement vehicle that can reduce the space occupied by the battery replacement vehicle.

[0034] The technical solutions of the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0035] Figure 1 is a schematic diagram of a battery replacement vehicle and a battery compartment shown in an embodiment of the present application; Figure 2 is a structural schematic diagram of a battery replacement vehicle shown in an embodiment of the present application.

[0036] Referring to Figures 1-2, the battery replacement vehicle includes a main body 1, a fixed frame 2, a mobile frame 3 and a mobile device 4. The main body 1 can travel on the ground, the fixed frame 2 can dock with the battery compartment 6 of the robot, so that the fixed frame 2 can carry the battery 5 removed from the battery compartment 6, and the mobile device 4 can move the mobile frame 3 to the position shown in Figure 7 and dock with the battery compartment 6, so that the mobile frame 3 can carry the battery 5 removed from the battery compartment 6. The mobile device 4 can also move the mobile frame 3 above the fixed frame 2.

[0037] Referring to Figures 1-2, wheels are provided at the bottom of the main body 1 to facilitate the staff in pushing the main body 1 to move. Preferably, the wheels are universal wheels. The fixing frame 2 is fixed to the main body 1. The fixing frame 2 can be used to place batteries 5 to be charged that have been taken out of the battery compartment 6, or to place batteries 5 that have been charged and are ready to be installed in the battery compartment 6. The height of the fixing frame 2 can be lower than or equal to the height of the battery compartment 6. When the fixing frame 2 is aligned with the battery compartment 6, the staff can push the batteries 5 on the fixing frame 2 into the battery compartment 6, or drag the batteries 5 in the battery compartment 6 to the empty fixing frame 2. The movable frame 3 can also be used to place batteries 5 to be charged that have been taken out of the battery compartment 6, or to place batteries 5 that have been charged and are ready to be installed in the battery compartment 6.

[0038] Referring to Figures 1-2, the mobile frame 3 is mounted on a mobile device 4. The mobile frame 3 is located above the fixed frame 2, and the mobile frame 3 and the fixed frame 2 overlap in the vertical direction. During the battery 5 replacement process, the mobile frame 3 can move horizontally at a first height above the fixed frame 2. The mobile frame 3 can also perform lifting and lowering movements between the first height and the second height where the fixed frame 2 is located. The mobile device 4 can provide power for the movement of the mobile frame 3. The mobile device 4 is mounted on the main body 1 and connected to the mobile frame 3. The mobile device 4 is used to drive the mobile frame 3 to perform horizontal movement and lifting and lowering movements, so that the mobile frame 3 can move between above the fixed frame 2 and a horizontal side of the fixed frame 2. When the battery replacement vehicle is moving, or when there is no need to replace the battery 5 for the robot, the mobile device 4 can drive the mobile frame 3 to move above the fixed frame 2. At this time, only the main body 1 and the fixed frame 2 occupy the ground space, and the mobile frame 3 will not affect the ground space of the battery replacement vehicle, thereby saving the ground space of the battery replacement vehicle. When it is necessary to transfer the battery 5 in the battery compartment 6 to the mobile frame 3 or place the battery 5 on the mobile frame 3 into the battery compartment 6, the mobile device 4 can drive the mobile frame 3 from above the fixed frame 2 to the horizontal side of the fixed frame 2, so that the mobile frame 3 and the fixed frame 2 are at the same height. At this time, the mobile frame 3 can be aligned with the battery compartment 6, and the staff transfers the battery 5 between the mobile frame 3 and the battery compartment 6. The movement of the mobile frame 3 is controlled by the mobile device 4, so that the mobile frame 3 can move horizontally at a first height above the fixed frame 2, and perform lifting and lowering movements between the first height and the second height. When the battery replacement vehicle is moving, or when there is no need to replace the battery 5 for the robot, the mobile frame 3 can be moved above the fixed frame 2, so that the mobile frame 3 and the fixed frame 2 occupy the same space. At this time, only the main body 1 and the fixed frame 2 occupy the ground space, thereby saving the overall space occupied by the battery replacement vehicle, making it convenient for the battery replacement vehicle to pass through narrow passages, and during the battery replacement process, the fixed frame and the mobile frame of the battery replacement vehicle are arranged front to back, allowing the battery replacement vehicle to perform battery replacement operations in narrow passages, thereby improving the efficiency of battery replacement.

[0039] 2 , in some embodiments, the mobile device 4 includes a lifting mechanism 41 and a translation mechanism 42. The lifting mechanism 41 is mounted on the main body 1 and connected to the translation mechanism 42. The mobile frame 3 is mounted on the translation mechanism 42. The mobile frame 3 is moved horizontally at a first height above the fixed frame 2 via the translation mechanism 42. The lifting mechanism 41 drives the translation mechanism 42 to move between the first height and a second height at which the fixed frame 2 is located. Consequently, the mobile frame 3 is raised and lowered between the first height and the second height as the translation mechanism 42 moves. When it is necessary to move the mobile frame 3 from directly above the fixed frame 2 to the horizontal side of the fixed frame 2, the mobile frame 3 is first moved horizontally from directly above the fixed frame 2 to the obliquely above the fixed frame 2 by the translation mechanism 42, so that the mobile frame 3 and the fixed frame 2 are staggered up and down, and the translation mechanism forms an avoidance groove, and the vertical projection of the mobile frame 3 does not overlap with the fixed frame 2. Then the lifting mechanism 41 controls the mobile frame 3 to descend so that the height of the mobile frame 3 is the same as the second height of the fixed frame 2 and is on the horizontal side of the fixed frame 2. At this time, the fixed frame 2 is located in the above-mentioned avoidance groove formed by the translation mechanism; when it is necessary to move the mobile frame 3 from the horizontal side of the fixed frame 2 to directly above the fixed frame 2, the lifting mechanism 41 first lifts the mobile frame 3 so that the mobile frame 3 is higher than the top end of the fixed frame 2 and is located at the first height, and then the mobile frame 3 is moved directly above the fixed frame 2 by the translation mechanism 42. The mobile frame 3 moves back and forth between the top of the fixed frame 2 and the horizontal side of the fixed frame 2 by horizontal and vertical movement, which can reduce the space used by the battery replacement vehicle, make the overall structure of the battery replacement vehicle more compact, and facilitate the miniaturization of the battery replacement vehicle.

[0040] FIG3 is a schematic structural diagram of a fixing frame 2 shown in an embodiment of the present application;

[0041] 2-3 , the lifting mechanism 41 includes a hydraulic cylinder 411, a roller 412, and a chain 413. The cylinder barrel of the hydraulic cylinder 411 is fixed to the main body 1, and the bottom end of the piston rod of the hydraulic cylinder 411 is installed in the cylinder barrel of the hydraulic cylinder 411. The piston rod of the hydraulic cylinder 411 is retracted in the vertical direction. The staff can control the lifting and lowering of the piston rod by stepping on the lifting handle of the hydraulic cylinder 411. The piston rod of the hydraulic cylinder 411 is connected to the roller 412. By controlling the lifting and lowering of the piston rod, the roller 412 is lifted and lowered. The middle part of the chain 413 is hung on the roller 412. One end of the chain 413 is fixed to the main body 1, and the other end of the chain 413 is fixed to the translation mechanism 42. When the piston rod rises, the roller 412 rises, and the roller 412 drives the first end of the chain 413 upward. The first end is the end connected to the translation mechanism 42, so that the chain 413 drives the translation mechanism 42 to rise. Conversely, when the piston rod needs to be lowered, the staff can open the valve of the hydraulic cylinder 411, and the piston rod descends under the action of gravity, and the translation mechanism 42 also descends, thereby realizing the lifting and lowering control of the translation mechanism 42 by the lifting mechanism 41. Among them, the hydraulic cylinder 411 can be electrically controlled or manually pumped. In this embodiment, the lifting mechanism 41 also includes an armrest, and the staff can inflate the hydraulic cylinder 411 by pressing the armrest. In addition, the lifting mechanism 41 can be a screw slide module, and the slide is connected to the translation mechanism 42, and the translation mechanism 42 is driven to rise and fall by the rotation of the screw.

[0042] FIG4 is a schematic structural diagram of the mobile rack 3 according to an embodiment of the present application.

[0043] Referring to Figures 2 to 4, in order to ensure that when the lifting mechanism 41 controls the translation mechanism 42 to lift and lower, the translation mechanism 42 can be lifted and lowered in a straight line, the main body 1 is provided with a vertically extending guide rod 11, and the fixed frame 2 is installed at the bottom end of the guide rod 11. The translation mechanism 42 is provided with a first guide wheel 423, a second guide wheel 424 and a limit rod 425. The guide rod 11 is clamped between the first guide wheel 423 and the second guide wheel 424. The first guide wheel 423 is located above the second guide wheel 424. When the staff operates the battery replacement vehicle to replace the battery 5, the battery compartment 6 is located in front of the battery replacement vehicle, and the staff is located behind the battery replacement vehicle. The first guide wheel 423 limits the movable frame 3 from moving forward, and the second guide wheel 424 limits the movable frame 3 from moving backward, so that when the lifting mechanism 41 drives the movable frame 3 to lift and lower, the movable frame 3 will not move forward or backward. To prevent the movable frame 3 from deflecting during the lifting process, a limiting rod 425 is disposed between the first guide wheel 423 and the second guide wheel 424. The limiting rod 425 abuts one side of the guide rod 11, thereby allowing the movable frame 3 to move only up and down. The first guide wheel 423 and the second guide wheel 424 can rotate relative to the limiting rod 425. In addition to limiting the forward and backward movement of the movable frame 3, the first guide wheel 423 and the second guide wheel 424 also make the movable frame 3 smoother during the lifting process, preventing the movable frame 3 from jamming due to friction during the lifting process.

[0044] Referring to Figures 2 to 4, in this embodiment, the translation mechanism 42 includes a mounting frame 421 and a telescopic mechanism 422. The mounting frame 421 is connected to the lifting mechanism 41. The mounting frame 421 is frame-shaped. The vertical projection of the mounting frame 421 does not overlap with the fixed frame 2. The movable frame 3 is installed on the telescopic mechanism 422. When the telescopic mechanism 422 drives the movable frame 3 to extend horizontally, an avoidance groove is formed between the movable frame 3 and the mounting frame 421, and the fixed frame 2 and the movable frame 3 are staggered in the vertical direction. The lifting mechanism 41 can drive the mounting frame 421 to descend to the second height of the fixed frame 2. At this time, the fixed frame 2 is located in the avoidance groove of the mounting frame 421, and the movable frame 3 is on the horizontal side of the fixed frame 2. Such a design can reduce the space occupied by the mounting frame 421, making it easier for the battery replacement vehicle to work in a narrow space. Specifically, when it is necessary to push the movable frame 3 to move along the telescopic mechanism 422, it can be achieved by the staff pushing the movable frame 3, or it can be driven by a motor to translate. In some embodiments, the telescopic mechanism 422 is a slide rail, and the telescopic mechanism 422 is mounted on the inner side of the mounting frame 421. In some embodiments, the telescopic mechanism 422 can be a pneumatic telescopic rod or a screw slide module.

[0045] Referring to Figures 1 to 4, both the mobile rack 3 and the fixed rack 2 include a placement table, a flow bar, and a buffer pad. The flow bar is located on the upper surface of the placement table and extends horizontally. The buffer pad is installed on the side of the placement table and is located in the output direction of the flow bar. The placement table of the mobile rack 3 is the first placement table 31, and the placement table of the fixed rack 2 is the second placement table 21; the flow bar of the mobile rack 3 is the first flow bar 32, and the flow bar of the fixed rack 2 is the second flow bar 22; the buffer pad of the mobile rack 3 is the first buffer pad 34, and the buffer pad of the fixed rack 2 is the second buffer pad 24. In some embodiments, the flow bar can be replaced by a plastic plate such as polytetrafluoroethylene with a low friction coefficient, so that the battery can slide on the placement table.

[0046] Referring to Figures 1-4 , the mobile frame 3 includes a first latching portion 33 , which is connected to the first placement platform 31 and is used to secure the battery 5 positioned on the mobile frame 3. Specifically, the first latching portion 33 is fixed to the upper surface of the first placement platform 31 and is hook-shaped. Because the battery 5 used in the robot has a rotatable handle, the handle can be latched onto the first latching portion 33 to prevent it from falling off the mobile frame 3 during transportation. This secures the battery 5 relative to the first placement platform 31 and ensures its safety. The first smooth strip 32 is located on the upper surface of the first placement platform 31. The first smooth strip 32 extends in the horizontal direction. The battery 5 can be placed on the first smooth strip 32. When the first placement platform 31 is aligned with the battery compartment 6, the staff can flip the handle to disengage the handle from the first holding portion 33, and then push the battery 5 into the battery compartment 6 along the first smooth strip 32. The first smooth strip 32 allows the staff to push the battery 5 into the battery compartment 6 more smoothly. The first buffer pad 34 is installed on the side of the first placement table 31, and the first buffer pad 34 is located in the output direction of the first smooth strip 32. Since the mobile rack 3 is aligned with the battery compartment 6, the mobile rack 3 needs to be close to the battery compartment 6. In order to avoid collision between the mobile rack 3 and the robot, the side of the first placement table 31 with the first buffer pad 34 can be moved toward the battery compartment 6. Even if the robot comes into contact with the mobile rack 3, the robot will first contact the first buffer pad 34. The first buffer pad 34 can buffer the collision and prevent damage to the mobile rack 3 or the robot. The first buffer pad 34 can be an air cushion, a rubber pad, a silicone pad or a cotton pad.

[0047] Referring to Figures 1-3 , the mounting frame 2 includes a second latching portion 23 , which is connected to the second placement platform 21 and is used to secure the battery 5 positioned on the mounting frame 2. Specifically, the second latching portion 23 is fixed to the upper surface of the second placement platform 21 and is hook-shaped. Because the battery 5 used in the robot has a rotatable handle, the handle can be latched onto the second latching portion 23 to prevent it from falling off the mounting frame 2 during transportation. This secures the battery 5 relative to the second placement platform 21 and ensures its safety. The second smooth strip 22 is located on the upper surface of the second placement platform 21. The second smooth strip 22 extends in the horizontal direction. The battery 5 can be placed on the second smooth strip 22. When the second placement platform 21 is aligned with the battery compartment 6, the staff can flip the handle to disengage the handle from the second holding portion 23, and then push the battery 5 into the battery compartment 6 along the second smooth strip 22. The second smooth strip 22 allows the staff to push the battery 5 into the battery compartment 6 more smoothly. The second buffer pad 24 is installed on the side of the second placement table 21, and the second buffer pad 24 is located in the output direction of the second smooth strip 22. Since the fixing frame 2 needs to be close to the battery compartment 6 when it is aligned with the battery compartment 6, in order to avoid collision between the fixing frame 2 and the robot, the side of the second placement table 21 with the second buffer pad 24 can be moved toward the battery compartment 6. Even if the robot comes into contact with the fixing frame 2, the robot will first contact the second buffer pad 24. The second buffer pad 24 can buffer the collision and prevent damage to the fixing frame 2 or the robot. The second buffer pad 24 can be an air cushion, a rubber pad, a silicone pad or a cotton pad.

[0048] Referring to Figure 4, in some embodiments, the mobile frame 3 and the fixed frame 2 are both provided with support members. When the mobile frame 3 is lowered to the second height where the fixed frame 2 is located, the bottom ends of the support members 35 are flush with the bottom end of the main body 1. When the mobile frame 3 is at the second height, the bottom ends of the support members 35 are flush with the bottom end of the main body 1. At this time, all the support members 35 are in contact with the ground. The support members 35 of the mobile frame 3 can support the mobile frame 3 to ensure that the battery 5 can remain stable when moving between the mobile frame 3 and the battery compartment 6. When the mobile frame 3 is directly above the fixed frame 2, the support members 35 of the fixed frame 2 can support the fixed frame 2. In addition, the support members 35 can also adjust the angle and position of the mobile frame 3 relative to the battery compartment 6, so that the staff can accurately dock the mobile frame 3 with the battery compartment 6. Specifically, the support members 35 can be wheels or pillars. In this embodiment, the support frame is a universal wheel.

[0049] 3-4 , in some embodiments, the mobile rack 3 includes a first locking portion 36 , which is located on the first placement platform 31 , and the translation mechanism 42 is provided with a second locking portion 426 . When the mobile rack 3 is located directly above the fixed rack 2 , the translation mechanism 42 fixes the mobile rack 3 by docking the first locking portion 36 and the second locking portion 426 to prevent the mobile rack 3 from shaking or moving forward due to the vibration generated by the battery replacement vehicle when the staff pushes the battery replacement vehicle. In one embodiment, the first locking portion 36 is provided with a through hole, and the second locking portion 426 is provided with a retractable lock head. When the mobile rack 3 needs to be fixed, the second locking portion 426 can be controlled to extend the lock head so that the lock head passes through the through hole, so that the first locking portion 36 cannot move under the restriction of the lock head, thereby fixing the mobile rack 3 relative to the translation mechanism 42 . In other embodiments, the second locking portion 426 may be an electromagnet. The staff controls the second locking portion 426 to be energized so that the second locking portion 426 magnetically attracts the first locking portion 36 , thereby fixing the movable frame 3 .

[0050] Corresponding to the aforementioned application function implementation device embodiment, the present application also provides a battery replacement system and corresponding embodiments.

[0051] Figure 5 is a schematic diagram of the battery shown in the embodiment of the present application; Figure 6 is a schematic diagram of the moving mechanism shown in the embodiment of the present application when working; Figure 7 is a schematic diagram of the lifting mechanism shown in the embodiment of the present application when working.

[0052] 5 to 7 , the battery replacement system includes a handling robot and a battery replacement vehicle. The handling robot includes a battery compartment 6, in which batteries 5 can be installed so that the battery 5 is used to power the robot. When replacing the battery 5 in the battery compartment 6, the fixed frame 2 or the movable frame 3 is aligned with the battery compartment 6. Specifically, when the charged battery 5 on the fixed frame 2 is to be replaced with the battery 5 to be charged in the battery compartment 6, there must be a charged battery 5 on the fixed frame 2 and there is an empty space on the movable frame 3. The staff pushes the main body 1 to the vicinity of the robot. The staff moves the movable frame 3 from directly above the fixed frame 2 to the horizontal side of the fixed frame 2 through the moving device 4, so that the movable frame 3 is at the same height as the fixed frame 2, and then pushes the main body 1 to align the movable frame 3 with the battery compartment 6. The staff then pulls the battery 5 to be charged out of the battery compartment 6 so that the battery 5 to be charged falls on the movable frame 3. After the battery 5 to be charged is properly placed on the movable frame 3, the staff moves the movable frame 3 back to directly above the fixed frame 2 through the moving device 4, and then pushes the main body 1 so that the fixed frame 2 Aim at the battery compartment 6 and push the charged battery 5 on the fixed frame 2 into the battery compartment 6. When the charged battery 5 is assembled, the battery replacement vehicle can be pushed away. When the charged battery 5 on the mobile frame 3 is to be replaced with the battery 5 to be charged in the battery compartment 6, there must be a charged battery 5 on the mobile frame 3 and there is an empty space on the fixed frame 2. The staff pushes the main body 1 toward the robot, and then pulls the battery 5 to be charged out of the battery compartment 6 so that the battery 5 to be charged falls on the fixed frame 2. After it is properly placed on the fixed frame 2, the staff pulls the main body 1 away from the robot, and then uses the moving device 4 to move the mobile frame 3 from directly above the fixed frame 2 to the horizontal side of the fixed frame 2, so that the mobile frame 3 is at the same height as the fixed frame 2, and then pushes the main body 1 to align the mobile frame 3 with the battery compartment 6, and pushes the charged batteries 5 on the mobile frame 3 into the battery compartment 6. After the charged batteries 5 are assembled, the staff uses the moving device 4 to move the mobile frame 3 back to directly above the fixed frame 2, and then pushes the battery replacement cart away.

[0053] The scheme of the present application has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of each embodiment have their own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments. Those skilled in the art should also be aware that the actions and modules involved in the description are not necessarily required for this application. In addition, it is understood that the steps in the method of the embodiment of the present application can be adjusted in sequence, merged and deleted according to actual needs, and the modules in the device of the embodiment of the present application can be merged, divided and deleted according to actual needs.

[0054] The embodiments of the present application have been described above. The above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is selected to best explain the principles of the embodiments, their practical applications, or improvements to the technology in the market, or to enable other persons skilled in the art to understand the embodiments disclosed herein.

Claims

1. A battery replacement vehicle, characterized in that: include: main body; A fixing frame, fixed to the main body, for placing batteries; a mobile frame mounted on the mobile device, located above the fixed frame and overlapping with the fixed frame, for placing batteries; during battery replacement, the mobile frame can move horizontally at a first height above the fixed frame, and perform lifting and lowering movements between the first height and a second height of the fixed frame; The moving device is installed on the main body and connected to the moving frame. The moving device is used to drive the moving frame to perform the horizontal movement and the lifting movement.

2. The battery replacement vehicle according to claim 1, characterized in that: The moving device includes a lifting mechanism and a translation mechanism, the lifting mechanism is installed on the main body, the lifting mechanism is connected to the translation mechanism, the moving frame is installed on the translation mechanism, the moving frame moves horizontally at the first height through the translation mechanism, and the lifting mechanism drives the translation mechanism to drive the moving frame to perform lifting and lowering movements between the first height and the second height.

3. The battery replacement vehicle according to claim 2, characterized in that: The lifting mechanism includes a hydraulic cylinder, a roller and a chain. The hydraulic cylinder is fixed to the main body and connected to the roller. The hydraulic cylinder drives the roller to rise and fall. The chain is hung on the roller. One end of the chain is fixed to the main body, and the other end of the chain is fixed to the translation mechanism.

4. The battery replacement vehicle according to claim 3, characterized in that: The main body is provided with a vertically extending guide rod, the fixing frame is installed at the bottom end of the guide rod, the translation mechanism is provided with a first guide wheel, a second guide wheel and a limit rod, the guide rod is clamped between the first guide wheel and the second guide wheel, the first guide wheel is located above the second guide wheel, the limit rod is located between the first guide wheel and the second guide wheel, and the limit rod abuts against one side of the guide rod.

5. The battery replacement vehicle according to claim 2, characterized in that: The translation mechanism includes a mounting frame and a telescopic mechanism, the mounting frame is connected to the lifting mechanism, the telescopic mechanism is installed on the mounting frame, and the movable frame is installed on the telescopic mechanism. When the telescopic mechanism drives the movable frame to extend horizontally, an avoidance groove is formed between the movable frame and the mounting frame. When the lifting mechanism drives the mounting frame to descend to the second height, the fixed frame is located in the avoidance groove.

6. The battery replacement vehicle according to claim 2, characterized in that: The movable frame includes a first locking portion, and the translation mechanism is provided with a second locking portion. When the movable frame is located at the first height, the translation mechanism fixes the movable frame by docking the first locking portion and the second locking portion.

7. The battery replacement vehicle according to claim 1, characterized in that: The mobile frame includes a first buckling portion, and the first buckling portion is used to fix the battery located on the mobile frame.

8. The battery replacement vehicle according to claim 1, characterized in that: The fixing frame includes a second buckling portion, and the second buckling portion is used to fix the battery located on the fixing frame.

9. The battery replacement vehicle according to claim 1, characterized in that: The movable frame and the fixed frame both include a placement table and a flow bar. The flow bar is located on the upper surface of the placement table and extends in a horizontal direction.

10. The battery replacement vehicle according to claim 9, characterized in that: The movable frame and the fixed frame both include a buffer pad, which is installed on a side of the placement table and is located in the output direction of the flow strip.

11. The battery replacement vehicle according to claim 1, characterized in that: The movable frame and the fixed frame are both provided with support members. When the movable frame is lowered to the second height, the bottom ends of the support members are flush with the bottom end of the main body.

12. A battery replacement system, characterized in that: It comprises a transport robot and the battery replacement vehicle according to any one of claims 1 to 11, wherein the transport robot comprises a battery compartment; when replacing the battery in the battery compartment, the fixed frame or the movable frame of the battery replacement vehicle is aligned with the battery compartment.

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