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

Abstract

The invention relates to a battery transportation device for vehicle battery replacement and vehicle battery replacement equipment. The battery transportation device for vehicle battery replacement comprises a chassis (1); the bearing platform (2) is configured to bear a battery and is mounted on the chassis (1) in a lifting manner; the lifting driving mechanism (3) comprises a rotating wheel (31), a driving component (32) for driving the rotating wheel (31) to lift and a flexible cable (33) wound on the rotating wheel (31), one end of the flexible cable (33) is connected with the chassis (1), the other end of the flexible cable (33) is connected with the bearing platform (2), and the flexible cable (33) is configured to drive the bearing platform (2) to lift along with the lifting of the rotating wheel (31).

Description

Technical Field

[0001] The present invention relates to the field of vehicle battery swapping, and more particularly, to a battery transportation device for vehicle battery swapping and a vehicle battery swapping device. Background Art

[0002] In order to enable electric vehicles to quickly replenish energy, some existing technologies use the method of replacing batteries to quickly replenish energy for electric vehicles. Some electric vehicle batteries are arranged below the vehicle, and battery swapping equipment is required to disassemble and install the battery below the vehicle. Summary of the Invention

[0003] The present invention aims to provide a battery transportation device for vehicle battery swapping and a vehicle battery swapping device that are conducive to reducing the height to enter below the vehicle.

[0004] According to one aspect of an embodiment of the present invention, the present invention provides a battery transportation device for vehicle battery swapping, the battery transportation device for vehicle battery swapping includes:

[0005] A chassis;

[0006] A bearing platform, configured to carry the battery and installed on the chassis in a liftable manner; and

[0007] A lifting drive mechanism, including a runner, a drive component for driving the runner to lift, and a flexible cable wound around the runner. One end of the flexible cable is connected to the chassis, and the other end is connected to the bearing platform. The flexible cable is configured to drive the bearing platform to lift as the runner lifts.

[0008] In some embodiments, a plurality of the lifting drive mechanisms are arranged along the periphery of the bearing platform, and the plurality of the lifting drive mechanisms move independently of each other to adjust the angle of the bearing platform relative to the horizontal plane.

[0009] In some embodiments, an installation groove with an upward opening is provided on the chassis, and the bearing platform is installed in the installation groove in a liftable manner.

[0010] In some embodiments, the lifting drive mechanism is arranged in the installation groove and is arranged along the horizontal diameter direction of the runner with the bearing platform.

[0011] In some embodiments, the lifting drive mechanism is located between the edge of the bearing platform and the side wall of the installation groove.

[0012] In some embodiments, the lifting drive mechanism further includes a runner frame and a guiding component for guiding the runner frame to move in the vertical direction. The runner is rotatably installed on the runner frame, and the drive component is connected to the runner frame and is configured to drive the runner frame to move in the vertical direction.

[0013] In some embodiments, the lifting drive mechanism further includes a guide rod extending in the vertical direction and connected to the runner frame. The guide member is provided with a guide hole extending in the vertical direction, and the guide rod is slidably disposed in the guide hole.

[0014] In some embodiments, the battery transport device for vehicle battery swapping further includes:

[0015] A lifting frame connected to the other end of the flexible cable to be lifted under the drive of the flexible cable;

[0016] A plurality of sling ropes arranged circumferentially along the load platform. The upper ends of the plurality of sling ropes are respectively connected to the lifting frame, and the lower ends of the plurality of sling ropes are respectively connected to the load platform.

[0017] In some embodiments, the lifting frame includes a frame border extending along the edge of the lifting platform. A first sling rope connection structure is disposed on a side of the frame border close to the load platform, and a second sling rope connection structure is disposed on the load platform.

[0018] In some embodiments, the load platform includes a load platform body and a connecting member connected to the load platform body and extending downward. The second sling rope connection structure is disposed at the bottom end of the connecting member.

[0019] In some embodiments, it further includes a locking and unlocking mechanism installed on the load platform for opening and / or closing a fixing lock for fixing the battery to the vehicle.

[0020] In some embodiments, the locking and unlocking mechanism includes:

[0021] A locking and unlocking gun protruding from the load plane of the load platform;

[0022] A driving motor installed below the load platform and drivingly connected to the locking and unlocking gun.

[0023] In some embodiments, multiple sets of the locking and unlocking mechanisms are installed on the load platform. Each set of the locking and unlocking mechanisms includes a plurality of locking and unlocking mechanisms configured to be correspondingly arranged with a plurality of fixing locks of the same battery one by one.

[0024] In some embodiments, the load platform includes a plurality of load portions adapted to a single battery. The load portions are correspondingly arranged with multiple sets of the locking and unlocking mechanisms one by one. The plurality of locking and unlocking mechanisms of each set of the locking and unlocking mechanisms are arranged along the edge of the corresponding load portion.

[0025] In some embodiments, the battery transportation device for vehicle battery swapping further includes a positioning component disposed on the bearing platform for positioning the position where the battery is disassembled or assembled on the bearing platform.

[0026] In some embodiments, the chassis is configured to move in any circumferential direction and / or the chassis is configured to rotate about a vertical rotation axis Z located in the middle of the chassis.

[0027] In some embodiments, the chassis includes a plurality of wheels, and the plurality of wheels are steerable wheels that can be independently steered from each other, or the plurality of wheels are Mecanum wheels.

[0028] According to another aspect of the present invention, there is also provided a vehicle battery swapping device, which includes the above-mentioned battery transportation device for vehicle battery swapping.

[0029] Applying the technical solution of the present application, the runner and the flexible cable of the lifting drive mechanism form a movable pulley mechanism. The runner moves in the vertical direction to drive the bearing platform to lift. The lifting stroke of the bearing platform is twice the lifting stroke of the runner. The height of the battery transportation device in the driving state when the lifting platform is lowered to the lowest position is relatively low, which is beneficial to driving under the vehicle for battery replacement operation.

[0030] Other features and advantages of the present invention will become clear through the following detailed description of the exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0032] Figure 1 Shows a schematic structural diagram of an electrical device disclosed in some embodiments of the present application;

[0033] Figure 2 Shows a schematic exploded view of a battery disclosed in some embodiments of the present application;

[0034] Figure 3 Shows a schematic structural diagram of a battery cell disclosed in some embodiments of the present application;

[0035] Figure 4 Shows a schematic structural diagram of a battery transportation device for vehicle battery swapping disclosed in some embodiments of the present application;

[0036] Figure 5Shows a schematic structural diagram of a battery transportation device for vehicle battery swapping (after the carrying platform is raised) disclosed in some embodiments of the present application;

[0037] Figure 6 Shows a schematic structural diagram of the chassis of a battery transportation device for vehicle battery swapping disclosed in some embodiments of the present application;

[0038] Figure 7 Shows a schematic structural diagram of the chassis and the lifting drive mechanism of a battery transportation device for vehicle battery swapping disclosed in some embodiments of the present application;

[0039] Figure 8 Shows a schematic structural diagram of the lifting drive mechanism of a battery transportation device for vehicle battery swapping disclosed in some embodiments of the present application;

[0040] Figure 9 Shows a schematic structural diagram of the lifting frame of a battery transportation device for vehicle battery swapping disclosed in some embodiments of the present application; and

[0041] Figure 10 Shows a schematic structural diagram of the carrying platform of a battery transportation device for vehicle battery swapping disclosed in some embodiments of the present application. Detailed implementation manners

[0042] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way restrictive of the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0043] In the description of the present application, it should be noted that unless otherwise specified, the meaning of "a plurality" is two or more; the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate the orientation or positional relationship for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation of the present application. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. "Vertical" is not strictly vertical, but within the allowable error range. "Parallel" is not strictly parallel, but within the allowable error range.

[0044] The orientation terms used in the following description are all the 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 "mounted", "connected", and "coupled" 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 those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0045] Further, the "range" disclosed in this application is defined in the form of a lower limit and an upper limit. A given range is defined by selecting a lower limit and an upper limit, and the selected lower limit and upper limit define the boundary of the specific range. The ranges defined in this way can include the end values or not include the end values, and can be combined arbitrarily, that is, any lower limit can be combined with any upper limit to form a range. For example, if ranges of 60-120 and 80-110 are listed for a specific parameter, ranges of 60-110 and 80-120 are also contemplated. In addition, if the minimum range values of 1 and 2 are listed, and if the maximum range values of 3, 4, and 5 are listed, then the following ranges are all contemplated: 1-3, 1-4, 1-5, 2-3, 2-4, and 2-5. In this application, unless otherwise stated, the numerical range "a-b" represents an abbreviated representation of any real number combination between a and b, where a and b are both real numbers. For example, the numerical range "0-5" means that all real numbers between "0-5" have been fully listed herein, and "0-5" is only an abbreviated representation of these numerical combinations. Additionally, when stating that a certain parameter is an integer ≥2, it is equivalent to disclosing that the parameter is, for example, the integers 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, etc.

[0046] If there is no special instruction, all embodiments and optional embodiments of this application can be combined with each other to form new technical solutions.

[0047] If there is no special instruction, all technical features and optional technical features of this application can be combined with each other to form new technical solutions.

[0048] Unless otherwise specified, all steps of this application can be carried out sequentially or randomly, preferably sequentially. For example, the method includes steps (a) and (b), indicating that the method may include steps (a) and (b) carried out sequentially, or may also include steps (b) and (a) carried out sequentially. For example, when it is mentioned that the method may further include step (c), it means that step (c) can 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 also include steps (c), (a), and (b), etc.

[0049] Unless otherwise specified, the terms "comprising" and "including" mentioned in this application mean open-ended, and can also be closed-ended. For example, the terms "comprising" and "including" can mean that other components not listed may also be included or comprised, or may only include or comprise the listed components.

[0050] Unless otherwise specified, in this application, the term "or" is inclusive. For example, the phrase "A or B" means "A, B, or both A and B". More specifically, any of the following conditions satisfies the condition "A or B": A is true (or exists) and B is false (or does not exist); A is false (or does not exist) while B is true (or exists); or both A and B are true (or exist).

[0051] Currently, from the perspective of the development of the market situation, the application of power batteries is becoming more and more widespread. Power batteries are not only applied to energy storage power systems such as hydraulic, thermal, wind, and solar power stations, but also widely used in electric transportation such as electric bicycles, electric motorcycles, and electric vehicles, as well as in multiple fields such as military equipment and aerospace. With the continuous expansion of the application fields of power batteries, the market demand for them is also continuously increasing.

[0052] Figure 1 The schematic structural diagram of an electrical device using a battery as a power source is shown; as Figure 1 shown, the electrical device of this embodiment includes a vehicle 1000, and the vehicle 1000 can be a pure electric vehicle, a hybrid vehicle, an extended-range vehicle, etc. A battery pack 100 is provided inside the vehicle 1000, and the battery pack 100 can be arranged at the bottom, head, or tail of the vehicle 1000. The battery pack 100 can be used to supply power to the vehicle 1000. For example, the battery pack 100 can be used as the operating power source of the vehicle 1000. The vehicle 1000 may further include a controller 200 and a motor 300. The controller 200 is used to control the battery pack 100 to supply power to the motor 300, for example, for the working power requirements during the start, navigation, and driving of the vehicle 1000.

[0053] 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 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.

[0054] Please refer to Figure 2 , Figure 2 FIG. is an exploded view of the battery pack 100 provided in some embodiments of the present application. The battery pack 100 includes a box body 110 and a battery module disposed in the box body 110. The battery module includes a plurality of battery cells 120, and the battery cells 120 are accommodated in the box body 110. Among them, the box body 110 is used to provide an accommodation space for the battery cells 120, and the box body 110 can adopt various structures. In some embodiments, the box body 110 may include a first part 111 and a second part 112. The first part 111 and the second part 112 are covered with each other, and the first part 111 and the second part 112 jointly define an accommodation space for accommodating the battery cells 120. The second part 112 may be a hollow structure with one end open, and the first part 111 may be a plate-like structure. The first part 111 covers the open side of the second part 112 so that the first part 111 and the second part 112 jointly define an accommodation space; the first part 111 and the second part 112 may also be hollow structures with one side open, and the open side of the first part 111 covers the open side of the second part 112. Of course, the box body 110 formed by the first part 111 and the second part 112 can be of various shapes, such as a cylinder, a cuboid, etc.

[0055] In the battery pack 100, there may be a plurality of battery cells 120. The plurality of battery cells 120 can be connected in series, in parallel, or in a series-parallel combination. A series-parallel combination means that there are both series and parallel connections among the plurality of battery cells 120. The plurality of battery cells 120 can be directly connected in series, in parallel, or in a series-parallel combination together, and then the whole formed by the plurality of battery cells 120 is accommodated in the box body 110; of course, the battery pack 100 can also be in the form that a plurality of battery cells 120 are first connected in series, in parallel, or in a series-parallel combination to form battery modules, and then the plurality of battery modules are connected in series, in parallel, or in a series-parallel combination to form a whole and are accommodated in the box body 110. The battery pack 100 may further include other structures. For example, the battery pack 100 may further include a busbar component for realizing electrical connection among the plurality of battery cells 120.

[0056] Among them, each battery cell 120 can be a secondary battery or a primary battery; it can also be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited thereto. The battery cell 120 can be in the shape of a cylinder, a flat body, a cuboid, or other shapes.

[0057] Please refer to Figure 3 , Figure 3Schematic exploded view of the battery cell 120 provided by some embodiments of the present application. The battery cell 120 refers to the smallest unit that makes up the battery pack 100. As Figure 3 , the battery cell 120 includes an end cap 121, a housing 122, a battery cell assembly 123, and other functional components.

[0058] The end cap 121 refers to a component that covers the opening of the housing 122 to isolate the internal environment of the battery cell 120 from the external environment. Without limitation, the shape of the end cap 121 can be adapted to the shape of the housing 122 to cooperate with the housing 122. Optionally, the end cap 121 can be made of a material with a certain hardness and strength, such as aluminum alloy. In this way, the end cap 121 is not easily deformed when subjected to extrusion and collision, enabling the battery cell 120 to have higher structural strength and improved safety performance. Functional components such as electrode terminals 121a can be provided on the end cap 121. The electrode terminals 121a can be used to electrically connect to the battery cell assembly 123 for outputting or inputting the electrical energy of the battery cell 120. In some embodiments, a pressure relief mechanism for releasing the internal pressure when the internal pressure or temperature of the battery cell 120 reaches a threshold can also be provided on the end cap 121. The material of the end cap 21 can also be various, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., and the embodiments of the present application do not make special restrictions on this. In some embodiments, an insulating member can also be provided on the inner side of the end cap 121, and the insulating member can be used to isolate the electrical connection components in the housing 122 from the end cap 121 to reduce the risk of short circuit. Exemplarily, the insulating member can be plastic, rubber, etc.

[0059] 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, the 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 covered 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 first form a common connection surface before other components are put into the housing, and when it is necessary to encapsulate the inside of the housing 122, the end cap 121 is then covered on the housing 122. The housing 122 can be of various shapes and sizes, such as cuboid, cylindrical, 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 material of the housing 122 can be various, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., and the embodiments of the present application do not make special restrictions on this.

[0060] The cell assembly 123 is the component in the battery cell 100 where the electrochemical reaction occurs. One or more cell assemblies 123 may be contained within the housing 122. The cell assembly 123 is mainly formed by winding or stacking electrode plates. Among them, the electrode plates include a positive electrode plate and a negative electrode plate, and generally a separator is provided between the positive electrode plate and the negative electrode plate.

[0061] The electrode plate mainly includes a flaky current collector and the active material coated on the current collector. The parts of the positive electrode plate and the negative electrode plate with the active material constitute the main body of the cell assembly, and the parts of the positive electrode plate and the negative electrode plate without the active material respectively constitute the electrode tabs 123a. The positive electrode tab and the negative electrode tab may be located at one end of the main body together or at both ends of the main body respectively. During the charge and discharge process of the battery pack 100, the positive active material and the negative active material react with the electrolyte, and the electrode tabs 123a are connected to the electrode terminals to form a current loop.

[0062] There is not enough space on both sides and at the front, rear, and both ends of the vehicle to set up an opening for replacing the battery. In particular, there is not enough space to set up an opening for a larger-sized battery to enter and exit. In view of the above situation, the opening for replacing the battery of some vehicles is set at the bottom of the vehicle. Further, in order to transport the battery at the bottom of the vehicle or remove the battery from the bottom of the vehicle, the height of the battery transportation device for vehicle battery swapping needs to be designed to be lower.

[0063] To solve the above problems, refer to Figure 4 and Figure 5 , the battery transportation device for vehicle battery swapping in this embodiment includes a chassis 1, a carrying platform 2, and a lifting drive mechanism 3.

[0064] The carrying platform 2 is configured to carry the battery and is installed on the chassis 1 in a liftable manner. During the process of vehicle battery replacement, the battery transportation device first moves under the vehicle, and then raises the carrying platform 2 so that the carrying platform 2 supports the battery to be disassembled. After the battery is disassembled from the vehicle, the carrying platform 2 carries the battery down and then moves to the outside of the vehicle. Then, the transportation device carries a new battery and moves under the vehicle, and then the carrying platform 2 raises the battery to the height where the vehicle installs the battery, and finally fixes the battery on the vehicle.

[0065] The lifting drive mechanism 3 includes a runner 31, a drive component 32 for driving the runner 31 to lift, and a flexible cable 33 wound around the runner 31. One end of the flexible cable 33 is connected to the chassis 1, and the other end is connected to the carrying platform 2. The flexible cable 33 is configured to drive the carrying platform 2 to lift as the runner 31 lifts.

[0066] In this embodiment, the runner 31 and the flexible cable 33 of the lifting drive mechanism 3 form a movable pulley mechanism. The vertical movement of the runner 31 drives the lifting of the bearing platform 2. The lifting stroke of the bearing platform 2 is twice the lifting stroke of the runner 31. The height of the battery transport device in the driving state when the lifting platform 2 is lowered to the lowest position is relatively low, which is beneficial for driving under the vehicle to perform battery replacement operations.

[0067] A plurality of lifting drive mechanisms 3 are arranged along the periphery of the bearing platform 2. The plurality of lifting drive mechanisms 3 move independently of each other to adjust the angle of the bearing platform 2 relative to the horizontal plane. The plurality of lifting drive mechanisms 3 are not on the same straight line. When the plurality of lifting drive mechanisms 3 drive the bearing platform 2 synchronously, the bearing platform 2 is lifted and lowered synchronously as a whole. When the plurality of lifting drive mechanisms 3 drive different positions of the bearing platform 2 out of sync, the angle of the bearing platform 2 relative to the horizontal direction can be adjusted so that the angle of the battery corresponds to the installation position.

[0068] In some embodiments, the driving component 32 includes one of a hydraulic cylinder, a screw slider mechanism, and a lifting push rod. The driving component 32 extends in the vertical direction. By using a movable pulley mechanism composed of the runner 31 and the flexible cable 33 to drive the lifting of the bearing platform 2, a driving component 32 with a relatively small gear in the vertical direction can be used to reduce the height of the transport device in the driving state.

[0069] In some embodiments, the screw slider mechanism includes a rotatable screw, a slider sleeved on the screw and threadedly engaged with the screw, and a motor for driving the rotation of the screw. During the rotation of the screw, the slider moves up and down along the screw. The slider is connected to the runner 31 to drive the lifting of the runner 31.

[0070] In some embodiments, the flexible cable 33 includes a chain, and the runner 31 includes a sprocket adapted to the chain. In other embodiments, the flexible cable 33 includes a rope, and the runner includes a pulley, and the rope is wound around the pulley.

[0071] In some embodiments, an installation groove 13 with an upward opening is provided on the chassis 1, and the bearing platform 2 is liftably installed in the installation groove 13, which is beneficial for reducing the height of the transport device in the driving state so that the transport device can drive under the vehicle to perform battery replacement operations.

[0072] Combined Figure 6 and 7 As shown, the chassis 1 includes a chassis frame that encloses the above-mentioned installation groove 13. The chassis frame of the chassis 1 includes two first chassis side frames 11a that are parallel and spaced apart and two second chassis side frames 11b that are parallel and spaced apart. Among them, the first chassis side frames 11a are perpendicular to the second chassis side frames 11b, and the two first chassis side frames 11a and the two second chassis side frames 11b enclose a rectangular installation groove 13.

[0073] The chassis 1 is configured to be movable in any circumferential direction thereof and / or the chassis 1 is configured to rotate about a vertical rotation axis Z located in the middle of the chassis 1.

[0074] The chassis 1 further includes a plurality of wheels 12 mounted below the chassis frame, and the wheels 12 include steering wheels or Mecanum wheels.

[0075] In some embodiments, there are two rows of wheels 12 arranged front and rear on the chassis 1, with two wheels 12 in each row. The two wheels 12 in each row are both steering wheels. The plurality of wheels 12 can be independently steered and independently rotated. By adjusting the steering angles of the plurality of wheels 12, the chassis 1 can be moved in any direction in the horizontal XY plane, and the chassis 1 can also be rotated about the vertical rotation axis Z. The XY plane is also the specific surface of the substantially horizontal battery swapping site. 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.

[0076] In some other embodiments, there are two rows of wheels 12 arranged front and rear on the chassis 1, with two wheels 12 in each row. The two wheels 12 in each row are both Mecanum wheels. The plurality of wheels 12 cooperate with each other to enable the chassis 1 to move in any direction in the horizontal XY plane, and the chassis 1 can also be rotated about the vertical rotation axis.

[0077] In some embodiments, the lifting drive mechanism 3 is disposed in the placement groove 13 and is arranged with the carrying platform 2 along the horizontal diameter direction of the runner 31, which is beneficial to avoiding the lifting drive mechanism 3 increasing the size of the transportation device in the height direction.

[0078] In some embodiments, the lifting drive mechanism 3 is located between the edge of the carrying platform 2 and the side wall of the placement groove 13. The carrying platform 2 is fitted into the placement groove 13 surrounded by the chassis frame of the chassis 1, and the lifting drive mechanism 3 is arranged in the gap between the carrying platform 2 and the chassis frame. Combining Figure 4 、 5 As shown in and 8, the flexible cable 33 is wound around the runner 31. The part of the flexible cable 33 on the side close to the carrying platform 2 of the runner 31 is connected to the carrying platform 2, and the part of the flexible cable 33 on the side close to the chassis frame of the chassis 1 of the runner 31 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.

[0079] In some embodiments, the bottom of the driving component 32 is flush with the bottom end of the chassis 1. The driving component 32 is a vertically telescopic mechanism. The rotating wheel 31 is installed at the top end of the driving component 32. The process of the driving component 32 telescoping drives the rotating wheel 31 to move up and down. The flexible cable 33 is wound around the rotating wheel 31. The two parts of the flexible cable 33 located on both sides of the rotating wheel 31 extend downward respectively. Among them, the bottom end of a part of the flexible cable 33 located on the side of the rotating wheel 31 close to the carrying platform 2 is connected to the carrying platform 2, and the bottom end of a part 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.

[0080] In some embodiments, the lifting drive mechanism 3 further includes a rotating wheel frame 34 and a guiding component 36 for guiding the rotating wheel frame 34 to move in the vertical direction. The rotating wheel 31 is rotatably installed on the rotating wheel frame 34. 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 the vertical direction. The guiding component 36 guides the rotating wheel 31 to move in the vertical direction, effectively improving the smoothness of the lifting process of the carrying platform.

[0081] In some embodiments, the lifting drive mechanism 3 further includes a guiding rod 35 extending in the vertical direction. The guiding rod 35 is connected to the rotating wheel frame 34. The guiding component 35 is provided with a guiding hole extending in the vertical direction. The guiding rod 35 is slidably arranged in the guiding hole. The guiding component 36 is installed on the chassis 1. The guiding component 36 in this embodiment has the characteristics of simple structure and high stability.

[0082] As Figure 8 shown, the lifting drive mechanism 3 includes two rotating wheels 31 symmetrically arranged on both sides of the guiding component 36. The two rotating wheels 31 are installed on the same rotating wheel frame 34. Each rotating wheel is correspondingly provided with a flexible cable 33 and a driving component 32. The two driving components 32 are symmetrically arranged on both sides of the guiding component 36 and are respectively connected to the rotating wheel frame 34 to improve the smoothness of the lifting process of the rotating wheel 31.

[0083] The battery transportation device for vehicle battery swapping further includes a lifting frame 4 and a plurality of suspension cables 6. The lifting frame 4 is connected to the other end of the flexible cable 33 to be lifted under the drive of the flexible cable 33; the plurality of suspension cables 6 are arranged along the circumferential direction of the carrying platform 2. The upper ends of the plurality of suspension cables 6 are respectively connected to the lifting frame 4, and the lower ends of the plurality of suspension cables 6 are respectively connected to the carrying platform 2. The rotating wheel 31 and the flexible cable 33 of the lifting drive mechanism 3 drive the lifting frame 4 to lift. The lifting frame 4 drives the carrying platform 2 to rise through the plurality of suspension cables 6. The carrying platform 2 is floatingly connected to the lifting frame 4 through the suspension cables 6, which is beneficial to preventing the battery placed on the carrying platform 2 from having a hard collision with the vehicle and also adjusting a certain position in the case where there are some errors between the battery and the battery installation position to enter the battery installation position.

[0084] In some embodiments, the lifting frame 4 includes a frame 41 extending along the edge of the lifting platform 2. On the side of the frame 41 close to the loading platform 2, a first sling connection structure 42 is provided. Refer to Figure 9 On the loading platform 2, a second sling connection structure 22 is provided. Refer to Figure 10 .

[0085] Refer to Figure 9 , on the side of the frame 41 away from the loading platform 2, a second flexible cable connection structure 44 is provided. The part of the flexible cable 33 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 part of the flexible cable 33 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. Refer to Figure 8 .

[0086] Refer to Figure 10 , the loading platform 2 includes a loading platform body 21 and a connecting member 23 connected to the loading platform body 21 and extending downward. The second sling connection structure 22 is provided at the bottom end of the connecting member 23 to reduce the height of the transportation device when it is in a traveling state, so as to realize the connection mode that the loading platform 2 is suspended on the lifting frame 4 on the premise of ensuring that the transportation device has a low height.

[0087] The lifting frame 4 includes two opposite frames 41 and an intermediate connecting beam 43 connecting the two frames 41. Among them, the two ends of the intermediate connecting beam 43 at the end in the length direction of the frame 41 are respectively connected to the upper parts of the two frames 41, and the two ends of the intermediate connecting beam 43 in the middle of the length direction of the frame 41 are respectively connected to the bottoms of the two frames 41, so that the loading platform 2 can be lowered to a position where at least part of it is lower than the upper end of the frame 41, which is beneficial to reducing the overall height of the transportation device.

[0088] In some embodiments, the transportation device further includes an unlocking and locking mechanism 5 installed on the loading platform 2 for opening and / or closing the fixing lock for fixing the battery to the vehicle. During the process of disassembling the battery from the vehicle, the loading platform 2 is raised to a position to support the battery to be disassembled, the unlocking and locking mechanism 5 unlocks the fixing lock for fixing the battery, and after the battery is disassembled from the vehicle, the loading platform 2 carries the battery and descends, and then moves to the outside of the vehicle. Then, the transportation device carries a new battery and moves to the lower part of the vehicle, then the loading platform 2 raises the battery to the height of installing the battery on the vehicle, and finally fixes the battery on the vehicle and rotates the fixing lock for fixing the battery to the locked state.

[0089] Multiple groups of unlocking and locking mechanisms 5 are installed on the loading platform 2, and each group of unlocking and locking mechanisms 5 includes a plurality of unlocking and locking mechanisms 5 configured to be correspondingly arranged with a plurality of fixing locks of the same battery one by one. The loading platform 2 of this embodiment can simultaneously complete the disassembly or installation of multiple batteries, and has the characteristics of high working efficiency and strong compatibility.

[0090] The load-bearing platform 2 includes multiple load-bearing parts adapted to a single battery, and the load-bearing parts are arranged one by one with multiple sets of locking and unlocking mechanisms 5, and multiple locking and unlocking mechanisms 5 of each set of locking and unlocking mechanisms 5 are arranged along the edge of the corresponding load-bearing part. Multiple load-bearing parts are arranged independently of each other, and each load-bearing part is connected to the lifting frame 4 through a sling 6. Each load-bearing part can float independently to adapt to specific conditions, and has the characteristics of high flexibility.

[0091] In some embodiments, the locking and unlocking mechanism 5 includes a locking and unlocking gun 51 and a driving motor 52. The locking and unlocking gun 51 protrudes from the load plane of the load platform 2; the driving motor 52 is installed below the load platform 2 and is in transmission connection with the locking and unlocking gun 51. After the locking and unlocking gun 51 is docked with the fixed lock of the fixed battery, it drives the lock to switch between the open state and the locked state.

[0092] The battery transport device for vehicle replacement also includes 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. 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 positioning component 7 can be used to position the carrying platform 2 in a predetermined working position, so as to stably complete the battery removal or installation work and open or close the fixed lock that fixes the battery.

[0093] According to another aspect of the present invention, a vehicle battery replacement device is also provided, the vehicle battery replacement device includes the above-mentioned battery transportation device for vehicle battery replacement. The vehicle battery replacement device also includes a battery warehouse for storing batteries, the battery warehouse is provided with a charging system for charging the batteries, and the battery transportation device for vehicle battery replacement is used to transport batteries removed from the vehicle to the battery warehouse and to transport batteries that have been charged in the battery warehouse to the vehicle.

[0094] The above are only exemplary embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A battery transport device for vehicle battery replacement, characterized in that: include: 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. The battery transport device for vehicle replacement according to claim 1, characterized in that: The plurality of lifting drive mechanisms (3) are arranged along the periphery of the carrying platform (2), and the plurality of lifting drive mechanisms (3) move independently of one another to adjust the angle of the carrying platform (2) relative to the horizontal plane.

3. The battery transport device for vehicle replacement according to claim 1, characterized in that: The chassis (1) is provided with a placement groove (13) which is open upward, and the carrying platform (2) is installed in the placement groove (13) in a liftable manner.

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

5. The battery transport device for vehicle replacement according to claim 3, characterized in that: 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. The battery transport device for vehicle replacement according to claim 1, characterized in that: The lifting drive mechanism (3) further comprises 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 replacement according to claim 6, characterized in that: The lifting drive mechanism (3) further comprises a guide rod (35) extending in the vertical direction and connected to the rotating wheel frame (34); the guide component (36) is provided with a guide hole extending in the vertical direction; the guide rod (35) is slidably disposed in the guide hole.

8. The battery transport device for vehicle replacement according to claim 1, characterized in that: Also includes: 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, characterized in that: The lifting frame (4) comprises a frame (41) extending along the edge of the lifting platform (2), a first sling connection structure (42) is provided on one 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. The battery transport device for vehicle replacement according to claim 8, characterized in that: The bearing platform (2) comprises a bearing platform body (21) and a connecting piece (23) connected to the bearing 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, characterized in that: 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. The vehicle battery transport device for battery replacement according to claim 11, characterized in that: A plurality of sets of locking and unlocking mechanisms (5) are installed on the carrying platform (2), and each set of locking and unlocking mechanisms (5) comprises a plurality of locking and unlocking mechanisms (5) arranged in one-to-one correspondence with a plurality of fixed locks of the same battery.

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

15. The battery transport device for vehicle replacement according to claim 1, characterized in that: It also includes a positioning component (7) disposed on the carrying platform (2) and used for positioning the position of the carrying platform (2) for removing or installing a battery.

16. The battery transport device for vehicle replacement according to claim 1, characterized in that: 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, characterized in that: The chassis (1) comprises a plurality of wheels (12), wherein 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, characterized in that: A battery transport device for vehicle battery replacement comprising any one of claims 1 to 17.

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