Battery conveying device for vehicle battery swapping, and vehicle battery swapping apparatus

Abstract

A battery conveying device for vehicle battery swapping, and a vehicle battery swapping apparatus. The battery conveying device for vehicle battery swapping comprises: a chassis (1); a carrying platform (2), configured to carry a battery and mounted on the chassis (1) to be capable of being lifted / lowered; and lifting / lowering driving mechanisms (3), each comprising a rotating wheel (31), a driving component (32) for driving the rotating wheel (31) to be lifted / lowered, and a flexible cable (33) wound on the rotating wheel (31), wherein one end of the flexible cable (33) is connected to the chassis (1) and the other end of the flexible cable (33) is connected to the carrying platform (2), and the flexible cable (33) is configured to drive the carrying platform (2) to be lifted / lowered as the rotating wheel (31) is lifted / lowered.

Description

Battery transport device for vehicle battery replacement and vehicle battery replacement equipment

[0001] This disclosure is based on and claims priority to an application with CN application number CN202311544439.6 and filing date November 17, 2023. The disclosure content of this CN application is hereby introduced into this disclosure as a whole. Technical Field

[0002] The present disclosure relates to the field of vehicle battery replacement, and in particular, to a battery transportation device for vehicle battery replacement and vehicle battery replacement equipment. Background Art

[0003] In order to enable electric vehicles to quickly replenish energy, some existing technologies use battery replacement methods to achieve rapid energy replenishment for electric vehicles. Some electric vehicles are arranged under the vehicle, and battery replacement equipment is required to remove and install the battery under the vehicle.

[0004] Summary of the Invention

[0005] The present disclosure aims to provide a battery transport device and vehicle battery replacement equipment for vehicle battery replacement that are conducive to lowering the height so as to enter under the vehicle.

[0006] According to one aspect of an embodiment of the present disclosure, the present disclosure provides a battery transport device for vehicle battery replacement, the battery transport device for vehicle battery replacement comprising:

[0007] chassis;

[0008] a carrying platform configured to carry the battery and mounted on the chassis in a liftable manner; and

[0009] The lifting drive mechanism includes a rotating wheel, a driving component for driving the rotating wheel to rise and fall, and a flexible rope wound around the rotating wheel. One end of the flexible rope is connected to the chassis and the other end is connected to the carrying platform. The flexible rope is configured to drive the carrying platform to rise and fall as the rotating wheel rises and falls.

[0010] In some embodiments, a plurality of lifting drive mechanisms are arranged along the periphery of the carrying platform, and the plurality of lifting drive mechanisms move independently of each other to adjust the angle of the carrying platform relative to the horizontal plane.

[0011] In some embodiments, a placement groove with an upward opening is provided on the chassis, and the carrying platform is installed in the placement groove in a liftable manner.

[0012] In some embodiments, the lifting drive mechanism is disposed in the placement groove and is arranged together with the carrying platform along the horizontal diameter direction of the rotating wheel.

[0013] In some embodiments, the lifting drive mechanism is located between the edge of the carrying platform and the side wall of the placement groove.

[0014] In some embodiments, the lifting drive mechanism further includes a rotating wheel frame and a guide component for guiding the rotating wheel frame to move in the vertical direction, the rotating wheel is rotatably mounted on the rotating wheel frame, and the driving component is connected to the rotating wheel frame and is configured to drive the rotating wheel frame to move in the vertical direction.

[0015] In some embodiments, the lifting drive mechanism further includes a guide rod extending in a vertical direction and connected to the rotating wheel frame. The guide component is provided with a guide hole extending in the vertical direction, and the guide rod is slidably disposed in the guide hole.

[0016] In some embodiments, the vehicle battery transport device further comprises:

[0017] A lifting frame connected to the other end of the flexible cable to be raised and lowered by the flexible cable;

[0018] A plurality of slings are arranged along the circumference of the carrying platform, the upper ends of the plurality of slings are respectively connected to the lifting frames, and the lower ends of the plurality of slings are respectively connected to the carrying platform.

[0019] In some embodiments, the lifting frame includes a frame extending along the edge of the lifting platform, a first sling connection structure is provided on a side of the frame close to the load-bearing platform, and a second sling connection structure is provided on the load-bearing platform.

[0020] In some embodiments, the load-bearing platform includes a load-bearing platform body and a connecting piece connected to the load-bearing platform body and extending downward, and the second sling connection structure is provided at the bottom end of the connecting piece.

[0021] In some embodiments, the vehicle further includes a locking and unlocking mechanism mounted on the carrier platform for opening and / or closing a fixing lock for fixing the battery on the vehicle.

[0022] In some embodiments, the locking and unlocking mechanism includes:

[0023] The locking and unlocking gun protrudes from the bearing surface of the bearing platform;

[0024] The driving motor is installed below the carrying platform and is connected to the locking and unlocking gun.

[0025] In some embodiments, multiple sets of locking and unlocking mechanisms are installed on the carrying platform, and each set of locking and unlocking mechanisms includes multiple locking and unlocking mechanisms configured to correspond one-to-one to multiple fixed locks of the same battery.

[0026] In some embodiments, the carrying platform includes multiple carrying parts adapted for a single battery, the carrying parts are arranged in one-to-one correspondence with multiple groups of locking and unlocking mechanisms, and the multiple locking and unlocking mechanisms of each group of locking and unlocking mechanisms are arranged along the edge of the corresponding carrying part.

[0027] In some embodiments, the battery transport device for vehicle battery replacement also includes a positioning component provided on the carrying platform for locating the position of the carrying platform for removing or installing the battery.

[0028] In some embodiments, the chassis is configured to be movable to any position along its circumference and / or the chassis is configured to rotate about a rotation axis Z that is vertical and located in the middle of the chassis.

[0029] In some embodiments, the chassis includes a plurality of wheels, wherein the plurality of wheels are steering wheels that can be steered independently of each other, or the plurality of wheels are Mecanum wheels.

[0030] According to another aspect of the present disclosure, a vehicle battery swapping device is also provided, which includes the above-mentioned battery transport device for vehicle battery swapping.

[0031] By applying the technical solution of the present application, the rotating wheel and the flexible rope of the lifting drive mechanism constitute a movable pulley mechanism. The rotating wheel moves in the vertical direction to drive the carrying platform to rise and fall. The lifting stroke of the carrying platform is twice the lifting stroke of the rotating wheel. When the lifting platform is lowered to the lowest position, the driving height of the battery transport device is relatively low, which is conducive to driving under the vehicle to perform battery replacement operations.

[0032] Other features and advantages of the present disclosure will become apparent from the following detailed description of exemplary embodiments of the present disclosure with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0034] FIG1 shows a schematic structural diagram of an electric device disclosed in some embodiments of the present application;

[0035] FIG2 shows a schematic diagram of the exploded structure of a battery disclosed in some embodiments of the present application;

[0036] FIG3 shows a schematic structural diagram of a battery cell disclosed in some embodiments of the present application;

[0037] FIG4 shows a schematic structural diagram of a battery transport device for vehicle battery replacement disclosed in some embodiments of the present application;

[0038] FIG5 shows a schematic structural diagram of a battery transport device for vehicle battery replacement (after the carrying platform is raised) disclosed in some embodiments of the present application;

[0039] FIG6 shows a schematic structural diagram of a chassis of a battery transport device for vehicle battery replacement disclosed in some embodiments of the present application;

[0040] FIG7 shows a schematic structural diagram of a chassis and a lifting drive mechanism of a battery transport device for vehicle battery replacement disclosed in some embodiments of the present application;

[0041] FIG8 shows a schematic structural diagram of a lifting drive mechanism of a battery transport device for vehicle battery replacement disclosed in some embodiments of the present application;

[0042] FIG9 shows a schematic structural diagram of a lifting frame of a battery transport device for vehicle battery replacement disclosed in some embodiments of the present application; and

[0043] FIG10 shows a schematic structural diagram of a carrying platform of a battery transport device for vehicle battery replacement disclosed in some embodiments of the present application. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present disclosure and its application or use. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present disclosure.

[0045] In the description of this application, it should be noted that, unless otherwise specified, "multiple" means more than two; the terms "upper", "lower", "left", "right", "inside", "outside", etc., indicating directions or positional relationships, 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 direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on this application. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. "Vertical" is not strictly perpendicular, but is within the allowable error range. "Parallel" is not strictly parallel, but is within the allowable error range.

[0046] The directional words appearing in the following description are all directions shown in the figures, and do not limit the specific structure of this application. In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0047] Further, " scope " disclosed in the present application is limited in the form of lower limit and upper limit, and given range is limited by selecting a lower limit and an upper limit, and selected lower limit and upper limit define the boundary of special scope. The scope that this mode limits can be to include end value or not include end value, and can be arbitrarily combined, and promptly any lower limit can form a scope with any upper limit combination. For example, if the scope of 60-120 and 80-110 is listed for specific parameter, it is understood that the scope of 60-110 and 80-120 is also expected. In addition, if the minimum range value 1 and 2 listed, and if the maximum range value 3,4 and 5 are listed, then the following scope can all be expected: 1-3, 1-4, 1-5, 2-3, 2-4 and 2-5. In the present application, unless otherwise specified, numerical range " ab " represents the abbreviation of any real number combination between a and b, and wherein a and b are all real numbers. For example, a numerical range of "0-5" indicates that all real numbers between "0-5" are listed herein, and "0-5" is simply an abbreviation for these numerical combinations. Furthermore, when a parameter is expressed as an integer ≥ 2, this is equivalent to disclosing that the parameter is, for example, an integer of 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, etc.

[0048] Unless otherwise specified, all embodiments and optional embodiments of the present application can be combined with each other to form a new technical solution.

[0049] Unless otherwise specified, all technical features and optional technical features of this application can be combined with each other to form a new technical solution.

[0050] Unless otherwise specified, all steps of the present application may be performed sequentially or randomly, preferably sequentially. For example, the method includes steps (a) and (b), indicating that the method may include steps (a) and (b) performed sequentially, or may include steps (b) and (a) performed sequentially. For example, the method may further include step (c), indicating that step (c) may be added to the method in any order, for example, the method may include steps (a), (b) and (c), or may include steps (a), (c) and (b), or may include steps (c), (a) and (b), etc.

[0051] Unless otherwise specified, the terms "include" and "comprising" used in this application may be open-ended or closed-ended. For example, "include" and "comprising" may mean that other components not listed may also be included or that only the listed components are included.

[0052] Unless otherwise specified, the term "or" is used in this application to be inclusive. For example, the phrase "A or B" means "A, B, or both A and B." More specifically, the condition "A or B" is satisfied if any of the following conditions are met: A is true (or exists) and B is false (or does not exist); A is false (or does not exist) and B is true (or exists); or both A and B are true (or exist).

[0053] Currently, market developments indicate that power batteries are becoming increasingly widely used. They are not only used in energy storage systems such as hydropower, thermal, wind, and solar power plants, but are also widely used in electric vehicles like electric bicycles, electric motorcycles, and electric vehicles, as well as in military equipment and aerospace. As power battery applications continue to expand, market demand is also growing.

[0054] FIG1 shows a schematic structural diagram of an electric device that uses a battery as a power source; as shown in FIG1 , the electric device of this embodiment includes a vehicle 1000, which may be a pure electric vehicle, a hybrid electric vehicle, or an extended-range vehicle, etc. A battery pack 100 is provided inside the vehicle 1000, and the battery pack 100 may be provided at the bottom, head, or tail of the vehicle 1000. The battery pack 100 may be used to power the vehicle 1000, for example, the battery pack 100 may serve as an operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300, and the controller 200 is used to control the battery pack 100 to power the motor 300, for example, for starting, navigating, and operating power requirements of the vehicle 1000 during driving.

[0055] In some embodiments of the present application, the battery pack 100 can not only serve as the operating power source of the vehicle 1000, but also serve as the driving power source of the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0056] Please refer to Figure 2, which is an exploded view of a battery pack 100 provided in some embodiments of the present application. The battery pack 100 includes a case 110 and a battery module disposed in the case 110. The battery module includes a plurality of battery cells 120, and the battery cells 120 are accommodated in the case 110. The case 110 is used to provide a storage space for the battery cells 120, and the case 110 can adopt a variety of structures. In some embodiments, the case 110 may include a first portion 111 and a second portion 112, the first portion 111 and the second portion 112 covering each other, and the first portion 111 and the second portion 112 jointly define a storage space for accommodating the battery cells 120. The second portion 112 can be a hollow structure with one end open, and the first portion 111 can be a plate-like structure. The first portion 111 covers the open side of the second portion 112, so that the first portion 111 and the second portion 112 jointly define a storage space. The first portion 111 and the second portion 112 can also be hollow structures with one end open, with the open side of the first portion 111 covering the open side of the second portion 112. Of course, the box 110 formed by the first portion 111 and the second portion 112 can have various shapes, such as a cylinder, a rectangular parallelepiped, etc.

[0057] In the battery pack 100, there may be multiple battery cells 120, and the multiple battery cells 120 may be connected in series, in parallel, or in a hybrid connection. A hybrid connection refers to a combination of series and parallel connections among the multiple battery cells 120. The multiple battery cells 120 may be directly connected in series, in parallel, or in a hybrid connection, and then the entire battery pack 120 may be housed within the housing 110. Alternatively, the battery pack 100 may be constructed by first connecting multiple battery cells 120 in series, in parallel, or in a hybrid connection to form a battery module, which is then connected in series, in parallel, or in a hybrid connection to form a complete battery module, and then housed within the housing 110. The battery pack 100 may also include other structures, such as a busbar assembly for electrically connecting the multiple battery cells 120.

[0058] Each battery cell 120 may be a secondary battery or a primary battery, a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited thereto. The battery cell 120 may be cylindrical, flat, rectangular, or in other shapes.

[0059] Please refer to Figure 3, which is a schematic diagram of the exploded structure of a battery cell 120 provided in some embodiments of the present application. A battery cell 120 is the smallest unit that makes up a battery pack 100. As shown in Figure 3, a battery cell 120 includes an end cap 121, a housing 122, a cell assembly 123, and other functional components.

[0060] The end cap 121 is a component that covers the opening of the housing 122 to isolate the internal environment of the battery cell 120 from the external environment. The shape of the end cap 121 can be adapted to the shape of the housing 122 to fit the housing 122. Optionally, the end cap 121 can be made of a material with a certain degree of hardness and strength, such as an aluminum alloy. This prevents the end cap 121 from deforming under pressure or collision, providing the battery cell 120 with greater structural strength and improved safety. The end cap 121 can be provided with functional components such as electrode terminals 121a. The electrode terminals 121a can be used to electrically connect to the battery cell assembly 123 to transfer electrical energy to or from the battery cell 120. In some embodiments, the end cap 121 can also be provided with a pressure relief mechanism to release internal pressure when the internal pressure or temperature of the battery cell 120 reaches a threshold. The end cap 121 can be made of a variety of materials, such as copper, iron, aluminum, stainless steel, aluminum alloy, and plastic, and this is not particularly limited in this embodiment of the present application. In some embodiments, an insulating member may be provided inside the end cap 121 to isolate the electrical connection components in the housing 122 from the end cap 121 to reduce the risk of short circuit.

[0061] The housing 122 is a component used to cooperate with the end cap 121 to form the internal environment of the battery cell 120, wherein the formed internal environment can be used to accommodate the battery cell assembly 123, electrolyte, and other components. The housing 122 and the end cap 121 can be independent components. An opening can be provided on the housing 122, and the end cap 121 is closed at the opening to form the internal environment of the battery cell 120. Without limitation, the end cap 121 and the housing 122 can also be integrated. Specifically, the end cap 121 and the housing 122 can form a common connection surface before other components are inserted into the housing. When the interior of the housing 122 needs to be encapsulated, the end cap 121 is closed over the housing 122. The housing 122 can have a variety of shapes and sizes, such as a rectangular parallelepiped, a cylindrical shape, a hexagonal prism, etc. Specifically, the shape of the housing 122 can be determined according to the specific shape and size of the battery cell assembly 123. The shell 122 can be made of various materials, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., and the embodiment of the present application does not impose any special restrictions on this.

[0062] The cell assembly 123 is the component within the battery cell 100 where the electrochemical reaction occurs. The housing 122 may contain one or more cell assemblies 123. These cell assemblies 123 are primarily formed by winding or stacking electrode sheets, including positive and negative electrodes, with a separator typically positioned between them.

[0063] The electrode sheet mainly consists of a thin sheet of current collector and an active material coated on the current collector. The parts of the positive and negative electrode sheets containing active material constitute the main body of the battery cell assembly, and the parts of the positive and negative electrode sheets without active material each constitute the electrode tab 123a. The positive and negative electrode tabs can be located at one end of the main body or at both ends of the main body. During the charge and discharge process of the battery pack 100, the positive and negative active materials react with the electrolyte, and the tabs 123a connect to the electrode terminals to form a current circuit.

[0064] There is not enough space on both sides and front and rear ends of the vehicle to set up openings for replacing batteries, especially there is not enough space to set up larger batteries for entering and exiting. In response to the above situation, the openings for replacing batteries on some vehicles are set at the bottom of the vehicle. Furthermore, in order to transport the batteries to the bottom of the vehicle or transport the batteries out from the bottom of the vehicle, the height of the battery transportation device for vehicle battery replacement needs to be designed to be lower.

[0065] In order to solve the above problems, referring to Figures 4 and 5, the battery transportation device for vehicle battery replacement in this embodiment includes a chassis 1, a carrying platform 2 and a lifting drive mechanism 3.

[0066] Loading platform 2 is configured to carry batteries and is mounted on chassis 1 in a scalable manner. During a battery replacement process, the battery transporter first moves under the vehicle, then raises loading platform 2 to support the battery to be removed. After the battery is removed from the vehicle, loading platform 2 is lowered with the battery and then moved to the outside of the vehicle. The transporter then moves under the vehicle with the new battery, and loading platform 2 raises the battery to the vehicle's installation height before securing it to the vehicle.

[0067] The lifting drive mechanism 3 includes a rotating wheel 31, a driving component 32 that drives the rotating wheel 31 to rise and fall, and a flexible rope 33 wound around the rotating wheel 31. One end of the flexible rope 33 is connected to the chassis 1, and the other end is connected to the supporting platform 2. The flexible rope 33 is configured to drive the supporting platform 2 to rise and fall as the rotating wheel 31 rises and falls.

[0068] In this embodiment, the wheel 31 and the flexible rope 33 of the lifting drive mechanism 3 constitute a movable pulley mechanism. The wheel 31 moves in the vertical direction to drive the carrying platform 2 to rise and fall. The lifting stroke of the carrying platform 2 is twice the lifting stroke of the wheel 31. When the lifting platform 2 is lowered to the lowest position, the driving height of the battery transport device is relatively low, which is conducive to driving under the vehicle to perform battery replacement operations.

[0069] Multiple lift drive mechanisms 3 are arranged along the perimeter of the support platform 2. These lift drive mechanisms 3 move independently of one another to adjust the angle of the support platform 2 relative to the horizontal plane. The lift drive mechanisms 3 are not aligned in a straight line. When the lift drive mechanisms 3 drive the support platform 2 synchronously, the support platform 2 as a whole rises and falls synchronously. When the lift drive mechanisms 3 drive the support platform 2 asynchronously at various positions, the angle of the support platform 2 relative to the horizontal can be adjusted to align the angle of the battery with the installation position.

[0070] In some embodiments, the drive component 32 comprises one of a hydraulic cylinder, a screw-slider mechanism, and a lifting push rod. The drive component 32 extends vertically and utilizes a movable pulley mechanism composed of a rotating wheel 31 and a flexible cable 33 to drive the load platform 2 upward and downward. A drive component 32 with a smaller vertical gear can be used to reduce the height of the transport device while in motion.

[0071] In some embodiments, the screw-slider mechanism includes a rotatable screw, a slider sleeved on the screw and engaged with the screw thread, and a motor that drives the screw. During the screw rotation, the slider moves up and down along the screw. The slider is connected to the rotating wheel 31 to drive the rotating wheel 31 up and down.

[0072] In some embodiments, the flexible cable 33 includes a chain, and the rotating wheel 31 includes a sprocket adapted to the chain. In other embodiments, the flexible cable 33 includes a rope, and the rotating wheel includes a pulley, and the rope is wound around the pulley.

[0073] In some embodiments, a placement groove 13 with an upward opening is provided on the chassis 1, and the supporting platform 2 can be installed in the placement groove 13 in a liftable manner, which is conducive to lowering the height of the transport device when it is in a driving state, so that the transport device can travel under the vehicle to perform battery replacement operations.

[0074] As shown in Figures 6 and 7 , the chassis 1 includes a chassis frame that encloses the aforementioned placement slot 13. The chassis frame of the chassis 1 includes two first chassis frames 11a disposed in parallel and spaced apart from each other, and two second chassis frames 11b disposed in parallel and spaced apart from each other, wherein the first chassis frames 11a are perpendicular to the second chassis frames 11b, and the two first chassis frames 11a and the two second chassis frames 11b enclose a rectangular placement slot 13.

[0075] The chassis 1 is configured to be movable to any direction in its circumferential direction and / or the chassis 1 is configured to rotate about a vertical rotation axis Z located in the middle of the chassis 1 .

[0076] The chassis 1 further includes a plurality of wheels 12 mounted below the chassis frame. The wheels 12 include steering wheels or Mecanum wheels.

[0077] In some embodiments, two rows of wheels 12 are provided on the chassis 1, each row having two wheels 12. Both wheels 12 in each row are steering wheels. The multiple wheels 12 can be steered and rotated independently. By adjusting the steering angles of the multiple wheels 12, the chassis 1 can be moved in any direction in the horizontal XY plane, and the chassis 1 can also be rotated around the vertical rotation axis Z. The XY plane is also the specific surface of the battery swap site that is approximately horizontal. In some embodiments, one of the X direction and the Y direction is parallel to the length direction of the chassis 1, and the other is parallel to the width direction of the chassis 1.

[0078] In other embodiments, two rows of front and rear wheels 12 are provided on the chassis 1, with two wheels 12 in each row, and both wheels 12 in each row are Mecanum wheels. The multiple wheels 12 cooperate with each other to enable the chassis 1 to move in any direction in the horizontal XY plane, and also to enable the chassis 1 to rotate around the vertical rotation axis.

[0079] In some embodiments, the lifting drive mechanism 3 is disposed in the placement groove 13 and arranged with the carrying platform 2 along the horizontal diameter direction of the rotating wheel 31, which helps to prevent the lifting drive mechanism 3 from increasing the height dimension of the transport device.

[0080] In some embodiments, the lifting drive mechanism 3 is located between the edge of the load-bearing platform 2 and the sidewall of the mounting groove 13. The load-bearing platform 2 is embedded in the mounting groove 13 formed by the chassis frame of the chassis 1, and the lifting drive mechanism 3 is located in the gap between the load-bearing platform 2 and the chassis frame. As shown in Figures 4, 5, and 8, a flexible cable 33 is wound around the rotating wheel 31. The portion of the flexible cable 33 located on the side of the rotating wheel 31 close to the load-bearing platform 2 is connected to the load-bearing platform 2, and the portion of the flexible cable 33 located on the side of the rotating wheel 31 close to the chassis frame of the chassis 1 is connected to the chassis 1. Referring to Figure 8, a first flexible cable connection structure 14 for connecting the flexible cable 33 is provided on the chassis 1.

[0081] In some embodiments, the bottom of the drive component 32 is flush with the bottom of the chassis 1. The drive component 32 is a vertically retractable mechanism, with the rotating wheel 31 mounted on its top. The retraction and extension of the drive component 32 drive the rotating wheel 31 upward and downward. A flexible cable 33 is wound around the rotating wheel 31. Two portions of the flexible cable 33, located on either side of the rotating wheel 31, extend downward. The bottom end of the portion of the flexible cable 33 located on the side of the rotating wheel 31 closest to the supporting platform 2 is connected to the supporting platform 2, while the bottom end of the portion of the flexible cable 33 located on the side of the rotating wheel 31 closest to the chassis frame of the chassis 1 is connected to the chassis 1.

[0082] In some embodiments, the lifting drive mechanism 3 further includes a rotating wheel frame 34 and a guide member 36 for guiding the rotating wheel frame 34 in vertical movement. The rotating wheel 31 is rotatably mounted on the rotating wheel frame 34. The driving member 32 is connected to the rotating wheel frame 34 and is configured to drive the rotating wheel frame 34 in vertical movement. The guide member 36 guides the rotating wheel 31 in vertical movement, effectively improving the smoothness of the lifting process of the load-bearing platform.

[0083] In some embodiments, the lifting drive mechanism 3 also includes a guide rod 35 extending in the vertical direction, the guide rod 35 is connected to the wheel frame 34, and a guide hole extending in the vertical direction is provided on the guide component 35. The guide rod 35 can be slidably arranged in the guide hole, and the guide component 36 is installed on the chassis 1. The guide component 36 of this embodiment has the characteristics of simple structure and high stability.

[0084] As shown in Figure 8 , the lifting drive mechanism 3 includes two rotating wheels 31 symmetrically arranged on either side of a guide member 36. The two rotating wheels 31 are mounted on a common rotating wheel frame 34. Each rotating wheel is provided with a corresponding flexible cable 33 and a driving component 32. The two driving components 32 are symmetrically arranged on either side of the guide member 36 and are respectively connected to the rotating wheel frame 34 to improve the stability of the rotating wheels 31 during the lifting process.

[0085] The battery transport device for vehicle battery replacement also includes a lifting frame 4 and multiple slings 6. The lifting frame 4 is connected to the other end of the flexible rope 33 so that it can be raised and lowered by the flexible rope 33. The multiple slings 6 are arranged along the circumference of the supporting platform 2, with the upper ends of the multiple slings 6 respectively connected to the lifting frame 4, and the lower ends of the multiple slings 6 respectively connected to the supporting platform 2. The rotating wheel 31 and flexible rope 33 of the lifting drive mechanism 3 drive the lifting frame 4 to rise and fall. The lifting frame 4 drives the supporting platform 2 to rise through the multiple slings 6. The supporting platform 2 is floatingly connected to the lifting frame 4 through the slings 6. This helps prevent the batteries placed on the supporting platform 2 from colliding with the vehicle. It also adjusts the battery to a certain position when there is some error between the battery and the battery installation position to enter the battery installation position.

[0086] In some embodiments, the lifting frame 4 includes a frame 41 extending along the edge of the lifting platform 2. A first sling connection structure 42 is provided on the side of the frame 41 close to the load-bearing platform 2, as shown in Figure 9. A second sling connection structure 22 is provided on the load-bearing platform 2, as shown in Figure 10.

[0087] Referring to FIG9 , a second flexible cable connection structure 44 is provided on the side of the frame 41 away from the supporting platform 2, the portion of the flexible cable 33 located on the side of the rotating wheel 31 close to the lifting frame 4 is connected to the second flexible cable connection structure 44, and the portion of the flexible cable 33 located on the side of the rotating wheel 31 close to the chassis 1 is connected to the first flexible cable connection structure 14 provided on the chassis frame, see FIG8 .

[0088] Referring to Figure 10, the carrying platform 2 includes a carrying platform body 21 and a connecting piece 23 connected to the carrying platform body 21 and extending downward. The second sling connection structure 22 is arranged at the bottom end of the connecting piece 23 to lower the height of the transport device in the driving state, so as to realize the connection mode of the carrying platform 2 suspended on the lifting frame 4 while ensuring that the height of the transport device is low.

[0089] The lifting frame 4 includes two opposing frames 41 and a central connecting beam 43 connecting the two frames 41. The ends of the central connecting beam 43 at the longitudinal ends of the frames 41 are connected to the upper portions of the two frames 41, while the ends of the central connecting beam 43 at the longitudinal middle of the frames 41 are connected to the bottom portions of the two frames 41. This allows the carrying platform 2 to be lowered to a position at least partially below the upper ends of the frames 41, thereby reducing the overall height of the transport device.

[0090] In some embodiments, the transport device further includes a locking and unlocking mechanism 5 mounted on the carrying platform 2 for opening and / or closing the locking mechanism that secures the battery to the vehicle. During the process of removing the battery from the vehicle, the carrying platform 2 is raised to a position supporting the battery to be removed. The locking and unlocking mechanism 5 unlocks the locking mechanism that secures the battery. After the battery is removed from the vehicle, the carrying platform 2 is lowered with the battery and then moved to the outside of the vehicle. The transport device then moves to the bottom of the vehicle with the new battery. The carrying platform 2 then raises the battery to the vehicle's battery installation height. Finally, the battery is secured to the vehicle and the locking mechanism that secures the battery is rotated to the locked position.

[0091] The carrier platform 2 is equipped with multiple locking and unlocking mechanisms 5. Each locking and unlocking mechanism 5 includes multiple locking and unlocking mechanisms 5 configured to correspond one-to-one with multiple fixed locks of the same battery. The carrier platform 2 of this embodiment can simultaneously remove or install multiple batteries, featuring high efficiency and strong compatibility.

[0092] The supporting platform 2 includes multiple supporting sections adapted for individual batteries. Each supporting section corresponds to a set of locking and unlocking mechanisms 5. The multiple locking and unlocking mechanisms 5 within each set are arranged along the edge of the corresponding supporting section. The multiple supporting sections are independently configured and connected to the lifting frame 4 via a sling 6. Each supporting section can float independently to adapt to specific circumstances, providing high flexibility.

[0093] In some embodiments, the locking and unlocking mechanism 5 includes a locking and unlocking gun 51 and a drive motor 52. The locking and unlocking gun 51 protrudes from the support surface of the support platform 2; the drive motor 52 is mounted below the support platform 2 and is in driving connection with the locking and unlocking gun 51. The locking and unlocking gun 51 engages the battery-mounted lock, driving the lock to switch between an open and locked state.

[0094] The battery transport device for vehicle battery replacement also includes a positioning component 7 provided on the carrying platform 2 for positioning the carrying platform 2 for removing or installing the battery. In some embodiments, the positioning component 7 includes a guide column erected on the carrying platform 2, and a positioning hole adapted to the guide column is provided on the vehicle. After the guide column is aligned with the positioning hole, the carrying platform 2 is in a position for removing or installing the battery. During the lifting and lowering of the carrying platform 2, the guide column moves up and down in the positioning hole. The carrying platform 2 can be positioned in a predetermined working position by means of the positioning component 7, so as to stably complete the battery removal or installation work and open or close the fixed lock that fixes the battery.

[0095] According to another aspect of the present disclosure, a vehicle battery swapping device is provided, comprising the aforementioned battery transport device for vehicle battery swapping. The vehicle battery swapping device also includes a battery storage facility for storing the batteries, the battery storage facility being equipped with a charging system for charging the batteries. The battery transport device for vehicle battery swapping is used to transport batteries removed from a vehicle to the battery storage facility and to transport batteries that have been charged in the battery storage facility back to the vehicle.

[0096] The above description is merely an exemplary embodiment of the present disclosure and is not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure shall be included in the scope of protection of the present disclosure.

Claims

1. A battery transport device for vehicle battery replacement, comprising: Chassis (1); A carrying platform (2) configured to carry batteries and mounted on the chassis (1) in a liftable manner; as well as The lifting drive mechanism (3) comprises a rotating wheel (31), a driving component (32) for driving the rotating wheel (31) to lift and lower, and a flexible rope (33) wound around the rotating wheel (31), one end of the flexible rope (33) being connected to the chassis (1) and the other end being connected to the supporting platform (2), and the flexible rope (33) being configured to drive the supporting platform (2) to lift and lower as the rotating wheel (31) lifts and lowers.

2. According to claim 1, the battery transportation device for vehicle replacement is characterized in that a plurality of the lifting drive mechanisms (3) are arranged along the periphery of the carrying platform (2), and the plurality of the lifting drive mechanisms (3) move independently of each other to adjust the angle of the carrying platform (2) relative to the horizontal plane.

3. The battery transport device for vehicle battery replacement according to claim 1 or 2, wherein the chassis (1) is provided with a placement groove (13) open upward, and the supporting platform (2) can be installed in the placement groove (13) in a liftable manner.

4. The battery transport device for vehicle replacement according to claim 3, wherein the lifting drive mechanism (3) is arranged in the placement groove (13) and is arranged together with the supporting platform (2) along the horizontal diameter direction of the rotating wheel (31).

5. The battery transport device for vehicle replacement according to claim 3 or 4, wherein the lifting drive mechanism (3) is located between the edge of the carrying platform (2) and the side wall of the placement groove (13).

6. A battery transport device for vehicle battery replacement according to any one of claims 1 to 5, wherein the lifting drive mechanism (3) also includes a rotating wheel frame (34) and a guide component (36) for guiding the rotating wheel frame (34) to move in a vertical direction, the rotating wheel (31) is rotatably mounted on the rotating wheel frame (34), and the driving component (32) is connected to the rotating wheel frame (34) and is configured to drive the rotating wheel frame (34) to move in a vertical direction.

7. The battery transport device for vehicle battery replacement according to claim 6, wherein the lifting drive mechanism (3) also includes a guide rod (35) extending in the vertical direction and connected to the rotating wheel frame (34), and the guide component (36) is provided with a guide hole extending in the vertical direction, and the guide rod (35) can be slidably arranged in the guide hole.

8. The vehicle battery transport device for battery replacement according to any one of claims 1 to 7, further comprising: A lifting frame (4) connected to the other end of the flexible cable (33) so as to be lifted and lowered under the drive of the flexible cable (33); A plurality of slings (6) are arranged along the circumference of the bearing platform (2); the upper ends of the plurality of slings (6) are respectively connected to the lifting frame (4); and the lower ends of the plurality of slings (6) are respectively connected to the bearing platform (2).

9. The battery transport device for vehicle replacement according to claim 8, wherein the lifting frame (4) includes a frame (41) extending along the edge of the lifting platform (2), and a first sling connection structure (42) is provided on the side of the frame (41) close to the load-bearing platform (2), and a second sling connection structure (22) is provided on the load-bearing platform (2).

10. A battery transportation device for vehicle replacement according to claim 8 or 9, wherein the supporting platform (2) includes a supporting platform body (21) and a connecting piece (23) connected to the supporting platform body (21) and extending downward, and the second sling connection structure (22) is arranged at the bottom end of the connecting piece (23).

11. The battery transport device for vehicle replacement according to claim 1, characterized in that: It also includes a locking and unlocking mechanism (5) installed on the carrying platform (2) for opening and / or closing a fixing lock for fixing the battery on the vehicle.

12. The vehicle battery transport device for battery replacement according to claim 11, wherein the locking and unlocking mechanism (5) comprises: A locking and unlocking gun (51) protrudes from the bearing plane of the bearing platform (2); A driving motor (52) is installed below the carrying platform (2) and is drivingly connected to the locking and unlocking gun (51).

13. A battery transport device for vehicle battery replacement according to claim 11 or 12, wherein a plurality of groups of the locking and unlocking mechanisms (5) are installed on the carrying platform (2), and each group of locking and unlocking mechanisms (5) includes a plurality of locking and unlocking mechanisms (5) configured to correspond one-to-one to a plurality of fixed locks of the same battery.

14. The battery transport device for vehicle replacement according to claim 13, wherein the carrying platform (2) includes a plurality of carrying parts adapted to a single battery, the carrying parts are arranged in one-to-one correspondence with a plurality of groups of locking and unlocking mechanisms (5), and a plurality of locking and unlocking mechanisms (5) of each group of locking and unlocking mechanisms (5) are arranged along the edge of the corresponding carrying part.

15. The battery transport device for vehicle battery replacement according to any one of claims 1 to 15, further comprising a positioning component (7) provided on the carrying platform (2) for positioning the position of the carrying platform (2) for removing or installing the battery.

16. A battery transport device for vehicle replacement according to any one of claims 1 to 15, wherein the chassis (1) is configured to be movable to any circumferential direction and / or the chassis (1) is configured to rotate about a vertical rotation axis Z located in the middle of the chassis (1).

17. The battery transport device for vehicle replacement according to claim 16, wherein the chassis (1) comprises a plurality of wheels (12), the plurality of wheels (12) are steering wheels that can be steered independently of each other, or the plurality of wheels (12) are Mecanum wheels.

18. A vehicle battery replacement device, comprising the battery transportation device for vehicle battery replacement according to any one of claims 1 to 17.

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