Vehicle battery replacing device and battery replacing system

Abstract

The embodiment of the invention provides a vehicle battery replacing device and a battery replacing system. The vehicle battery replacing device is used for replacing a battery assembly (71) of a vehicle (70) and comprises a frame (10); the supporting table (20) is arranged on the frame (10) and is configured to support a battery assembly to be mounted or dismounted; the lifting mechanism (30) is arranged on the frame (10), is operably connected with the supporting table (20) and is configured to drive the supporting table (20) to ascend and descend; the locking and unlocking mechanisms (40) are arranged on the supporting table (20) and used for achieving locking or unlocking of the battery assembly relative to the vehicle. Wherein the plurality of locking and unlocking mechanisms (40) are arranged on the supporting surface of the supporting table (20) at intervals, the plurality of locking and unlocking mechanisms (40) comprise at least two groups of locking and unlocking mechanisms (40), and the control of each group of locking and unlocking mechanisms (40) is mutually independent.

Description

Technical Field

[0001] The present disclosure relates to the field of vehicle battery swapping, and particularly to a vehicle battery swapping device and a battery swapping system. Background Art

[0002] Secondary batteries, especially lithium-ion batteries, have the advantages of high voltage, high specific energy, long cycle life, green and pollution-free, wide operating temperature range, and low self-discharge. They are widely used in the power equipment of new energy electric vehicles and are of great significance for solving human environmental pollution and energy crisis.

[0003] In order to meet the energy replenishment needs of new energy electric vehicles, some related technologies establish battery swapping stations to replace the batteries of the arriving vehicles, and how to improve the adaptability of battery replacement has become one of the important issues. Summary of the Invention

[0004] In one aspect of the present disclosure, there is provided a vehicle battery swapping device for replacing a battery assembly of a vehicle, including: a frame; a support platform disposed on the frame and configured to support the battery assembly to be installed or disassembled; a lifting mechanism disposed on the frame and operably connected to the support platform and configured to drive the support platform to lift and lower; and a plurality of locking and unlocking mechanisms disposed on the support platform for locking or unlocking the battery assembly relative to the vehicle; wherein the plurality of locking and unlocking mechanisms are spaced apart on the support surface of the support platform, and the plurality of locking and unlocking mechanisms include at least two groups of locking and unlocking mechanisms, and the control of each group of locking and unlocking mechanisms is independent of each other.

[0005] A plurality of locking and unlocking mechanisms are disposed on the support platform driven by the lifting mechanism to lift and lower, and the plurality of locking and unlocking mechanisms are spaced apart on the support platform. The plurality of locking and unlocking mechanisms include at least two groups that are independent of each other in control. By selecting from the plurality of locking and unlocking mechanisms and controlling the locking and unlocking operations, the locking requirements corresponding to various different battery combinations can be met, and the adaptability of the vehicle battery swapping device to different battery combinations of the vehicle for battery swapping can be improved.

[0006] In some embodiments, some or all of the at least two groups of locking and unlocking mechanisms have one locking and unlocking mechanism.

[0007] By making some or all of each group of locking and unlocking mechanisms have one locking and unlocking mechanism, more locking and unlocking mechanisms can be independently controlled, and the adaptability of the locking and unlocking operations for battery assemblies of different combinations can be improved.

[0008] In some embodiments, the support platform includes at least two support plates, the lifting mechanism includes at least two sets of lifting components, the at least two sets of lifting components correspond to the at least two support plates one by one and are operably connected, and the control of each set of lifting components is linked or independent of each other.

[0009] Considering that the vehicle to be battery-replaced may have different vehicle tire pressures or the site may be uneven, resulting in the vehicle chassis not being parallel to the site, which may affect the normal replacement of the battery. By providing at least two support plates and connecting the at least two support plates respectively through at least two sets of lifting components that are independent of each other in control, the distance of each support plate relative to the site can be adjusted according to the inclination angle between the chassis of the vehicle to be battery-replaced and the site where it is located or the installation height of each battery component, so as to achieve the normal replacement of the battery. In addition, it can also be applicable to the battery replacement requirements of some vehicles with multiple battery components arranged at different installation heights or the battery components arranged obliquely.

[0010] In cases where the vehicle chassis is parallel to the site, etc., the control of each set of lifting components can also be linked, which is beneficial to simplifying the control logic and reducing the control difficulty.

[0011] In some embodiments, the at least two support plates are arranged along a first direction, a part and another part of each set of lifting components are respectively located outside opposite ends of the support plate corresponding to the lifting component in a second direction, the first direction is perpendicular to the second direction, and both the first direction and the second direction are perpendicular to the lifting direction of the support platform.

[0012] By arranging the lifting components at the outer sides of opposite ends in the second direction of at least two support plates arranged along the first direction, the support plates can be arranged more compactly, reducing the space occupation and mutual interference of the lifting components and the support plates in the first direction, and being beneficial to realizing the stable lifting of the support plates.

[0013] In some embodiments, the control of each lifting component in each set of lifting components is linked or independent of each other.

[0014] By independently controlling each lifting component in each set of lifting components and cooperating with the linked control or independent control of each set of lifting components, a part or all of the lifting components can be selectively lifted to the same or different heights, so as to more flexibly adjust the inclination angle of the support plate relative to the site and meet the battery replacement needs of different inclination angles between the chassis of the vehicle to be battery-replaced and the site where it is located or different inclined arrangement angles of the batteries of the vehicle.

[0015] For each set of lifting components that can be independently controlled or linkedly controlled, the control of each set of lifting components can also be linked, which is beneficial to simplifying the control logic and reducing the control difficulty.

[0016] In some embodiments, the plurality of unlocking and locking mechanisms are distributed on two opposite sides of each support plate along the first direction.

[0017] By distributing the unlocking and locking mechanisms on the opposite sides of the support plates along the arrangement direction of the plurality of support plates, it is possible to prevent interference between each unlocking and locking mechanism and the lifting components located outside both ends in the second direction, and it is also beneficial to arrange, disassemble, and replace the unlocking and locking mechanisms.

[0018] In some embodiments, the unlocking and locking mechanisms located on the same side are arranged at intervals along the second direction.

[0019] For the unlocking and locking mechanisms located on the same side, arranging them at intervals along the second direction can achieve multi-point locking of the battery or locking of multiple batteries in the second direction, meeting the unlocking and locking requirements of battery assemblies in different combination forms.

[0020] In some embodiments, the lifting mechanism includes at least two sets of lifting components, and at least one of the at least two sets of lifting components includes: a linear telescopic actuator disposed on the bottom surface of the frame and configured to drive the support platform to move in a third direction parallel to the lifting direction of the support platform; and a lifting member having a support end for supporting the support platform and a connection end connected to the driving end of the linear telescopic actuator, wherein the connection end is located on a side of the support end away from the bottom surface of the frame.

[0021] The lifting component uses a linear telescopic actuator and a lifting member to drive the support platform to move up and down. The lifting member adjusts the height position of the supported support platform under the linear drive of the driving end of the linear telescopic actuator, which is beneficial for the battery to be in a lower support position, allowing a greater lifting distance to meet the battery swapping requirements of vehicles with a lower chassis.

[0022] In some embodiments, the linear telescopic actuator includes: a rigid chain mechanism having a housing and a rigid chain disposed in the housing, with the end of the rigid chain fixedly connected to the connection end; a motor drivingly connected to the rigid chain mechanism and configured to drive the rigid chain to move relative to the housing; and a telescopic arm connected to both the housing and the connection end and sleeved outside the rigid chain.

[0023] Using a rigid chain mechanism can achieve a more compact structure while obtaining higher control accuracy, occupying less space, and the telescopic arm sleeved outside the rigid chain can protect the operation of the rigid chain to reduce the adverse effects of lateral forces on the rigid chain.

[0024] In some embodiments, the motor includes a servo motor.

[0025] The rigid chain mechanism is driven by a servo motor, which can cooperate with a rigid chain with high precision to achieve a more precise control effect and a higher transmission efficiency.

[0026] In some embodiments, the driving end of the linear telescopic actuator has a first working position, and the lifting member is configured to make the distance between the connecting end and the bottom surface of the frame in the third direction not higher than the height of the frame in the third direction when the driving end of the linear telescopic actuator is in the first working position.

[0027] When the driving end of the linear telescopic actuator is in the first working position, by making the distance between the connecting end of the lifting member and the bottom surface of the frame in the third direction not higher than the height of the frame in the third direction, the overall height of the lifting assembly can be lower in the retracted position of the linear telescopic actuator, so that it is easier to enter the lower side of a vehicle with a lower chassis for battery swapping.

[0028] In some embodiments, the frame has a battery support seat, and the battery support seat is configured to support the support table when the driving end of the linear telescopic actuator is in the first working position, so that the supporting end is disengaged from the support table.

[0029] A battery support seat is provided on the frame, and the support table is supported by the battery support seat when the driving end of the linear telescopic actuator is in the first working position, so that the supporting end is disengaged from the support table. This can make the support table obtain a more stable supporting effect, reduce the loss of the lifting assembly, and make the lifting mechanism not easily affected by lateral forces.

[0030] In some embodiments, the driving end of the linear telescopic actuator further has a second working position, and the lifting member is configured to make the distance between the connecting end and the bottom surface of the frame in the third direction not lower than twice the height of the frame in the third direction when the driving end of the linear telescopic actuator is in the second working position.

[0031] When the driving end of the linear telescopic actuator is in the second working position, the distance between the connecting end of the lifting member and the bottom surface of the frame in the third direction is not lower than twice the height of the frame in the third direction, which enables the support table to achieve a larger lifting range and meet the battery swapping requirements for a larger range of chassis heights.

[0032] In some embodiments, the vehicle battery swapping device further includes: a floating mechanism, located at the connection position between the lifting mechanism and the support table, and configured to move the support table relative to the lifting mechanism in at least one direction perpendicular to the lifting direction of the support table.

[0033] By providing a floating mechanism at the connection position between the lifting mechanism and the support table, the force exerted on the unlocking and locking mechanism in the direction parallel to the support surface of the support table during installation or use can be relieved through the floating mechanism, thereby reducing the risk of damage to the unlocking and locking mechanism due to installation or operation errors.

[0034] In some embodiments, the floating mechanism includes a universal ball bearing, which is located between the opposite surfaces of the lifting mechanism and the support table in the lifting direction of the support table.

[0035] Using a universal ball bearing for the floating mechanism can, while achieving the floating effect, allow the support table to disengage from the lifting mechanism in the lifting and lowering direction, facilitating disassembly and replacement. Moreover, this floating mechanism has a more compact structure.

[0036] In some embodiments, the vehicle battery swapping device further includes: a steering wheel assembly, which is arranged on the frame.

[0037] Using a steering wheel assembly to enable the vehicle battery swapping device to move can facilitate translation and steering.

[0038] In one aspect of the present disclosure, a battery swapping system is provided, including the aforementioned vehicle battery swapping device.

[0039] The battery swapping system using the aforementioned vehicle battery swapping device can improve the adaptability of battery replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments of the present disclosure will be briefly introduced below. Obviously, the following described drawings are only some embodiments of the present disclosure. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the drawings.

[0041] Referring to the drawings, the present disclosure can be more clearly understood according to the following detailed description, where:

[0042] Figure 1 is a schematic diagram of a battery swapping scenario according to some embodiments of the vehicle battery swapping device of the present disclosure;

[0043] Figure 2 is a schematic diagram of an installation structure according to some embodiments of the vehicle battery swapping device of the present disclosure;

[0044] Figure 3 is a schematic diagram of the structure with the frame removed according to some embodiments of the vehicle battery swapping device of the present disclosure;

[0045] Figure 4 is Figure 2Schematic structural diagram of the illustrated embodiment from a top-down perspective;

[0046] Figure 5 is Figure 3 Schematic structural diagram of the illustrated embodiment from a top-down perspective;

[0047] Figure 6 is Figure 3 Enlarged schematic diagram of the position corresponding to circle A in;

[0048] Figure 7 Schematic structural diagram of some embodiments of the vehicle battery swapping device according to the present disclosure from a front view perspective when the driving end of the linear telescopic actuator is in the second working position;

[0049] Figure 8 Schematic structural diagram of some embodiments of the vehicle battery swapping device according to the present disclosure from a front view perspective when the driving end of the linear telescopic actuator is in the first working position;

[0050] Figure 9 is Figure 3 Enlarged schematic diagram of the position corresponding to circle B in;

[0051] Figure 10 is Figure 6 Enlarged schematic diagram of the position corresponding to circle C in.

[0052] It should be understood that the dimensions of the various parts shown in the drawings are not drawn according to actual proportional relationships. In addition, the same or similar reference numerals represent the same or similar components. Explanation of reference numerals:

[0053] 10 - Frame; 11 - Bottom surface; 12 - Battery support base;

[0054] 20 - Support platform; 21 - Support plate; 21a, 21b - Side edges;

[0055] 30 - Lifting mechanism; 31 - Lifting component; 311 - Linear telescopic actuator; 311a - Rigid chain mechanism; 311b - Motor; 311c - Telescopic arm; 312 - Lifting member; 312a - Support end; 312b - Connection end;

[0056] 40 - Locking and unlocking mechanism;

[0057] 50 - Floating mechanism; 51 - Universal ball bearing;

[0058] 60 - Steering wheel assembly;

[0059] 70 - Vehicle; 71 - Battery assembly;

[0060] d1 - First direction; d2 - Second direction; d3 - Third direction. Specific embodiments

[0061] The following further describes the embodiments of the present disclosure in detail in conjunction with the accompanying drawings and examples. The detailed descriptions and drawings of the following examples are used to exemplarily illustrate the principles of the present disclosure, but cannot be used to limit the scope of the present disclosure, that is, the present disclosure is not limited to the described embodiments.

[0062] In the description of the present disclosure, it should be noted that unless otherwise stated, the meaning of "a plurality" is two or more; the orientation or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are only for the convenience of describing the present disclosure 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 therefore cannot be understood as a limitation of the present disclosure. 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 vertical, but within the allowable error range. "Parallel" is not strictly parallel, but within the allowable error range.

[0063] The orientation terms appearing in the following description are all the directions shown in the figures and do not limit the specific structure of the present disclosure. In the description of the present disclosure, it should also be noted that unless otherwise clearly specified and limited, the terms "mounted", "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 those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0064] The following further describes some embodiments of the present invention in detail in conjunction with the accompanying drawings. Without conflict, the features in the following embodiments can be combined with each other.

[0065] "A plurality" as used in the present disclosure means two or more (including two).

[0066] The battery mentioned in the embodiments of the present disclosure refers to a single physical module including one or more battery cells to provide higher voltage and capacity.

[0067] In some embodiments, the battery can be a battery module. When there are multiple battery cells, the multiple battery cells are arranged and fixed to form a battery module. The battery module can include multiple battery cells connected in series, parallel, or in a mixed connection.

[0068] In some embodiments, the battery can be a battery pack, and the battery pack includes a box body and battery cells, and the battery cells or battery modules are accommodated in the box body.

[0069] In the embodiments of the present disclosure, the battery cell may be a secondary battery, which refers to a battery cell that can be activated by charging after discharging so as to continue to be used.

[0070] The battery cell may be a lithium-ion battery, a sodium-ion battery, a sodium-lithium-ion battery, a lithium metal battery, a sodium metal battery, a lithium-sulfur battery, a magnesium-ion battery, a nickel-metal hydride battery, a nickel-cadmium battery, a lead-acid battery, etc., and the embodiments of the present application are not limited thereto.

[0071] The battery cell includes an electrode assembly. The electrode assembly includes a first electrode tab and a second electrode tab with opposite polarities, and further includes a separator disposed between the first electrode tab and the second electrode tab. In some embodiments, the first electrode tab is a positive electrode tab and the second electrode tab is a negative electrode tab. In other embodiments, the first electrode tab is a negative electrode tab and the second electrode tab is a positive electrode tab. During the charging and discharging process of the battery cell, active ions (such as lithium ions) are embedded and extracted back and forth between the positive electrode tab and the negative electrode tab. The separator is disposed between the positive electrode tab and the negative electrode tab, which can prevent short circuit between the positive and negative electrodes and at the same time allow active ions to pass through.

[0072] In some embodiments, the positive electrode tab may include a positive electrode current collector substrate and a positive electrode active material layer disposed on at least one surface of the positive electrode current collector substrate.

[0073] As an example, the positive electrode current collector substrate has two surfaces opposite to each other in its own thickness direction, and the positive electrode active material layer is disposed on any one or both of the two opposite surfaces of the positive electrode current collector substrate.

[0074] As an example, the positive electrode current collector substrate may be a metal foil or a composite current collector. For example, as the metal foil, aluminum or stainless steel with silver surface treatment, stainless steel, copper, aluminum, nickel, carbon electrode, carbon, nickel or titanium, etc. may be used. The composite current collector may include a polymer material substrate layer and a metal layer. The composite current collector may be formed by disposing a metal material (such as aluminum, aluminum alloy, nickel, nickel alloy, titanium, titanium alloy, silver and silver alloy, etc.) on a polymer material substrate (such as a substrate of polypropylene, polyethylene terephthalate, polybutylene terephthalate, polystyrene, polyethylene, etc.).

[0075] As an example, the positive electrode active material layer may include at least one of the following materials: lithium-containing phosphates, lithium transition metal oxides, and their respective modified compounds. However, the present disclosure is not limited to these materials, and other conventional materials that can be used as the positive electrode active material layer of the battery may also be used. These positive electrode active material layers may be used alone or in combination of two or more. Among them, examples of the lithium-containing phosphate may include, but are not limited to, at least one of lithium iron phosphate, a composite material of lithium iron phosphate and carbon, lithium manganese phosphate, a composite material of lithium manganese phosphate and carbon, lithium manganese iron phosphate, and a composite material of lithium manganese iron phosphate and carbon. Examples of the lithium transition metal oxide may include, but are not limited to, at least one of lithium cobalt oxide, lithium nickel oxide, lithium manganese oxide, lithium nickel cobalt oxide, lithium manganese cobalt oxide, lithium nickel manganese oxide, lithium nickel cobalt manganese oxide, lithium nickel cobalt aluminum oxide, and their modified compounds, etc.

[0076] In some embodiments, the negative electrode tab may include a negative electrode current collector substrate.

[0077] As an example, the negative electrode current collector substrate may be a metal foil, a foam metal, or a composite current collector. For example, as the metal foil, aluminum or stainless steel with a silver surface treatment, stainless steel, copper, aluminum, nickel, carbon electrodes, carbon, nickel, titanium, etc. may be used. The foam metal may be foam nickel, foam copper, foam aluminum, foam alloy, or foam carbon, etc. The composite current collector may include a polymer material base layer and a metal layer. The composite current collector may be formed by depositing a metal material (such as copper, copper alloy, nickel, nickel alloy, titanium, titanium alloy, silver, and silver alloy, etc.) on a polymer material substrate (such as a substrate of polypropylene, polyethylene terephthalate, polybutylene terephthalate, polystyrene, polyethylene, etc.).

[0078] In some embodiments, the negative electrode tab may include a negative electrode current collector substrate and a negative electrode active material layer disposed on at least one surface of the negative electrode current collector substrate.

[0079] As an example, the negative electrode current collector substrate has two surfaces opposite to each other in its own thickness direction, and the negative electrode active material layer is disposed on either or both of the two opposite surfaces of the negative electrode current collector substrate.

[0080] As an example, the negative electrode active material layer may adopt a negative electrode active material layer for a battery cell known in the art. As an example, the negative electrode active material layer may include at least one of the following materials: artificial graphite, natural graphite, soft carbon, hard carbon, silicon-based materials, tin-based materials, and lithium titanate, etc. The silicon-based materials may be selected from at least one of elemental silicon, silicon oxides, silicon-carbon composites, silicon-nitrogen composites, and silicon alloys. The tin-based materials may be selected from at least one of elemental tin, tin oxides, and tin alloys. However, the present disclosure is not limited to these materials, and other conventional materials that can be used as the negative electrode active material layer of the battery may also be used. These negative electrode active material layers may be used alone or in combination of two or more.

[0081] In some embodiments, the material of the positive electrode current collector substrate may be aluminum, and the material of the negative electrode current collector substrate may be copper.

[0082] In some embodiments, the separator is a separator membrane. The present disclosure has no particular limitation on the type of the separator membrane, and any known porous structure separator membrane with good chemical stability and mechanical stability can be selected.

[0083] As an example, the main material of the separator membrane may be selected from at least one of glass fiber, non-woven fabric, polyethylene, polypropylene, polyvinylidene fluoride, and ceramics. The separator membrane may be a single-layer film or a multi-layer composite film, without particular limitation. When the separator membrane is a multi-layer composite film, the materials of each layer may be the same or different, without particular limitation. The separator may be a single component located between the positive electrode plate and the negative electrode plate, or may be attached to the surface of the positive electrode plate and / or the surface of the negative electrode plate while being located between the positive electrode plate and the negative electrode plate.

[0084] In some embodiments, the separator is a solid electrolyte. The solid electrolyte is disposed between the positive electrode plate and the negative electrode plate, and simultaneously functions to transport ions and isolate the positive and negative electrodes.

[0085] In some embodiments, the battery cell further includes an electrolyte, and the electrolyte functions to conduct ions between the positive and negative electrodes. The present disclosure has no specific limitation on the type of the electrolyte, and it can be selected according to requirements. The electrolyte may be liquid, gel-like, or solid.

[0086] As an example, the liquid electrolyte includes an electrolyte salt and a solvent.

[0087] In some embodiments, the electrolyte salt may be selected from at least one of lithium hexafluorophosphate, lithium tetrafluoroborate, lithium perchlorate, lithium hexafluoroarsenate, lithium bis(fluorosulfonyl)imide, lithium bis(trifluoromethanesulfonyl)imide, lithium trifluoromethanesulfonate, lithium difluorophosphate, lithium difluorooxalate borate, lithium bis(oxalate) borate, lithium difluoro bis(oxalate) phosphate, and lithium tetrafluorooxalate phosphate.

[0088] In some embodiments, the solvent may be selected from at least one of ethylene carbonate, propylene carbonate, ethyl methyl carbonate, diethyl carbonate, dimethyl carbonate, dipropyl carbonate, methyl propyl carbonate, ethyl propyl carbonate, butylene carbonate, fluoroethylene carbonate, methyl formate, methyl acetate, ethyl acetate, propyl acetate, methyl propionate, ethyl propionate, propyl propionate, methyl butyrate, ethyl butyrate, 1,4-butyrolactone, sulfolane, dimethyl sulfone, methyl ethyl sulfone, and diethyl sulfone. The solvent may also be an ether solvent. The ether solvent may include one or more of ethylene glycol dimethyl ether, ethylene glycol diethyl ether, diethylene glycol dimethyl ether, triethylene glycol dimethyl ether, tetraethylene glycol dimethyl ether, 1,3-dioxolane, tetrahydrofuran, methyltetrahydrofuran, diphenyl ether, and crown ether.

[0089] As an example, the gel electrolyte includes a polymer as the skeleton network of the electrolyte, combined with an ionic liquid-lithium salt.

[0090] As an example, the solid electrolyte includes a polymer solid electrolyte, an inorganic solid electrolyte, and a composite solid electrolyte.

[0091] As an example, the polymer solid electrolyte may be polyether (polyethylene oxide), polysiloxane, polycarbonate, polyacrylonitrile, polyvinylidene fluoride, polymethyl methacrylate, single-ion polymer, polyionic liquid-lithium salt, cellulose, etc.

[0092] As an example, the inorganic solid electrolyte may be an oxide solid electrolyte (crystalline perovskite, sodium superionic conductor, garnet, amorphous LiPON film), a sulfide solid electrolyte (crystalline lithium superionic conductor (lithium germanium phosphorus sulfur, argyrodite), amorphous sulfide), and one or more of a halide solid electrolyte, a nitride solid electrolyte, and a hydride solid electrolyte.

[0093] As an example, the composite solid electrolyte is formed by adding an inorganic solid electrolyte filler to the polymer solid electrolyte.

[0094] In some embodiments, the electrode assembly includes a wound structure. The positive electrode sheet, the negative electrode sheet, and the separator are wound into a wound structure. One or more positive electrode sheets and one or more negative electrode sheets may be provided respectively. As an example, a plurality of positive electrode sheets and a plurality of negative electrode sheets are alternately arranged in the thickness direction of the electrode sheets.

[0095] In some embodiments, the shape of the electrode assembly may be cylindrical, flat, or multi-prismatic, etc.

[0096] In some embodiments, the positive electrode tab includes a positive electrode tab, and the negative electrode tab includes a negative electrode tab. The positive electrode tab and the negative electrode tab can be used to conduct current out of the electrode assembly. The positive electrode tab and the negative electrode tab are respectively connected to the positive current collector substrate and the negative current collector substrate. The tab can be formed by cutting or trimming the current collector substrate, or can be connected to the side of the current collector substrate by welding.

[0097] In some embodiments, the battery cell may include a housing. The housing is used to encapsulate components such as the electrode assembly and the electrolyte. The housing can be a steel shell, an aluminum shell, a plastic shell (such as polypropylene), a composite metal shell (such as a copper-aluminum composite shell), or an aluminum-plastic film, etc.

[0098] As an example, the battery cell can be a cylindrical battery cell, a prismatic battery cell, a soft-pack battery cell, or a battery cell of other shapes. The prismatic battery cell includes a square-shell battery cell, a blade-shaped battery cell, a multi-prismatic battery, and the multi-prismatic battery is, for example, a hexagonal prism battery, etc.

[0099] In some related technologies, in a battery swapping station, a vehicle lifting and handling robot is used to load and unload the battery of a new energy vehicle with swappable batteries. This handling robot uses a trapezoidal lead screw assembly to drive a connecting rod to achieve lifting motion. This structure requires a certain amount of space in terms of height, so its adaptability to vehicles with different chassis heights is relatively limited. Moreover, the lifting distance of this structure is relatively limited, and it also occupies more space in the horizontal direction, and it is not easy to meet the requirements of loading and unloading batteries with different quantities and different combination forms.

[0100] In view of this, the embodiments of the present disclosure provide a vehicle battery swapping device and a battery swapping system, which can improve the adaptability of vehicle battery replacement.

[0101] In one aspect of the present disclosure, there is provided a vehicle battery swapping device for replacing a battery assembly of a vehicle, including: a frame; a support platform disposed on the frame and configured to support the battery assembly to be installed or removed; a lifting mechanism disposed on the frame and operably connected to the support platform and configured to drive the support platform to lift; and a plurality of locking and unlocking mechanisms disposed on the support platform for locking or unlocking the battery assembly relative to the vehicle; wherein the plurality of locking and unlocking mechanisms are spaced apart on the support surface of the support platform, and the plurality of locking and unlocking mechanisms include at least two sets of locking and unlocking mechanisms, and the control of each set of locking and unlocking mechanisms is independent of each other.

[0102] A plurality of unlocking and locking mechanisms are provided on a support platform that is driven by a lifting mechanism to move up and down, and the plurality of unlocking and locking mechanisms are arranged at intervals on the support platform. The plurality of unlocking and locking mechanisms include at least two groups that are independent of each other in terms of control. By selecting among the plurality of unlocking and locking mechanisms and controlling the unlocking and locking operations, the locking requirements corresponding to various different battery combinations can be met, and the adaptability of the vehicle battery swapping device to different battery combinations of the vehicle can be improved.

[0103] Figure 1 is a schematic diagram of a battery swapping scenario according to some embodiments of the vehicle battery swapping device of the present disclosure. Refer to Figure 1 In some embodiments of the vehicle battery swapping device, the vehicle 70 can be a fuel vehicle, a gas vehicle, or a new energy vehicle. The new energy vehicle can be a pure electric vehicle or a hybrid vehicle, etc. The vehicle can be a household vehicle or a commercial vehicle. A battery assembly 71 can be provided at the bottom of the vehicle 70.

[0104] The vehicle battery swapping device can disassemble the battery assembly 71 installed on the vehicle 70 at the bottom of the vehicle 70, or can install the battery assembly 71 on the vehicle 70 at the bottom of the vehicle 70. The vehicle battery swapping device can enter the height space H formed between the bottom of the vehicle 70 and the support surface G. The support surface G can be the ground of the swapping station site or the surface of the swapping platform.

[0105] The battery assembly 71 can be used for power supply of the vehicle 70. For example, the battery assembly 71 can be used as the operating power source of the vehicle 70 for the circuit system of the vehicle 70, such as for the starting, navigation, and working power requirements during operation of the vehicle 70. The battery assembly 71 can not only be used as the operating power source of the vehicle 70, but also be used as the driving power source of the vehicle 70 to provide driving force for the vehicle 70 instead of or partially replacing fuel or natural gas.

[0106] An axle, wheels, a motor, and a controller can also be provided inside the vehicle 70. The controller is used to control the power supply of the battery assembly 71 to the motor. For example, when the vehicle 70 uses the battery assembly 71 as the driving power source, the battery assembly 71 provides the power required for the motor to run at a constant speed and accelerate instead of or partially replacing fuel or natural gas. The motor is used to drive the axle to rotate, so as to drive the wheels to rotate.

[0107] The battery assembly 71 can include one or more batteries. Among different battery assemblies, at least one of the size, shape, specification, quantity, and position of the batteries is different. In addition to including batteries, the battery assembly 71 can also include a frame structure for fixing a plurality of batteries, etc.

[0108] Figure 2 is a schematic diagram of the installation structure according to some embodiments of the vehicle battery swapping device of the present disclosure. Figure 3It is a schematic structural diagram of removing the frame in some embodiments of the vehicle battery swapping device according to the present disclosure. Figure 4 is Figure 2 A schematic structural diagram of the shown embodiment from a top view angle. Figure 5 is Figure 3 A schematic structural diagram of the shown embodiment from a top view angle.

[0109] Referring to Figure 2 and Figure 4 According to the present disclosure, embodiments provide a vehicle battery swapping device for replacing a battery assembly 71 of a vehicle 70. The vehicle battery swapping device includes: a frame 10, a support platform 20, a lifting mechanism 30, and a plurality of locking and unlocking mechanisms 40. The support platform 20 is disposed on the frame 10 and is configured to support a battery assembly to be installed or removed. The lifting mechanism 30 is disposed on the frame 10 and is operably connected to the support platform 20 and is configured to drive the support platform 20 to move up and down. The plurality of locking and unlocking mechanisms 40 are disposed on the support platform 20 and are used to lock or unlock the battery assembly relative to the vehicle. The plurality of locking and unlocking mechanisms 40 are spaced apart on the support surface of the support platform 20, and the plurality of locking and unlocking mechanisms 40 include at least two groups of locking and unlocking mechanisms 40, and the control of each group of locking and unlocking mechanisms 40 is independent of each other.

[0110] A plurality of locking and unlocking mechanisms are disposed on a support platform driven by a lifting mechanism, and the plurality of locking and unlocking mechanisms are spaced apart on the support platform. The plurality of locking and unlocking mechanisms include at least two groups that are independent of each other in control. By selecting from the plurality of locking and unlocking mechanisms and controlling the locking and unlocking operations, the locking requirements corresponding to various different battery combination forms can be met, and the adaptability of the vehicle battery swapping device to different battery combination forms of the vehicle for battery swapping can be improved.

[0111] Through the independent control of each group of locking and unlocking mechanisms, the battery swapping requirements of at least one of a single battery assembly and a multi-battery assembly can be adaptively met according to the form of the battery assembly used in the vehicle. The number of locking and unlocking mechanisms can also be increased or decreased according to the battery weight.

[0112] In this embodiment, the frame 20 can realize the installation and support of the support platform 20 and the lifting mechanism 30, and can move on the support surface G through a traveling mechanism. Specifically, the traveling mechanism can adopt rollers capable of walking on a plane, or can adopt track wheels capable of running on a track. The frame 20 can adopt a box structure or a truss structure.

[0113] A plurality of locking and unlocking mechanisms 40 provided on the support platform 20 can achieve locking or unlocking of the battery assembly 71 relative to the vehicle 70. The lifting mechanism 30 is used to drive the lifting of the support platform 20, so as to achieve docking, locking or unlocking of the locking and unlocking mechanism 40 with the battery assembly 71, and to raise or lower the height position of the battery assembly 71 carried by the support platform 20 by raising or lowering the support platform 20.

[0114] The plurality of locking and unlocking mechanisms 40 include a plurality of groups. The grouping can be carried out according to the positions of the respective locking and unlocking mechanisms 40. For example, a plurality of locking and unlocking mechanisms 40 arranged in the same direction can be divided into a group, or several adjacent locking and unlocking mechanisms 40 can be divided into a group, or grouped according to the regions divided on the support platform, etc. It is also possible that a group of locking and unlocking mechanisms 40 only includes one locking and unlocking mechanism 40.

[0115] In some embodiments, some or all of the at least two groups of locking and unlocking mechanisms 40 have one locking and unlocking mechanism 40.

[0116] By making some or all of each group of locking and unlocking mechanisms have one locking and unlocking mechanism, more locking and unlocking mechanisms can be independently controlled, which can improve the adaptability to the locking and unlocking operations of battery assemblies in different combination forms.

[0117] Reference Figure 2 and Figure 3 In some embodiments, the support platform 20 includes at least two support plates 21, the lifting mechanism 30 includes at least two groups of lifting components 31, and the at least two groups of lifting components 31 are in one-to-one correspondence with and operably connected to the at least two support plates 21, and the control of each group of lifting components 31 is either linked or independent of each other.

[0118] Considering that the vehicle to be replaced may have different vehicle tire pressures or the site is uneven, etc., resulting in the vehicle chassis not being parallel to the site, which may affect the normal replacement of the battery. By providing at least two support plates and connecting the at least two support plates respectively through at least two groups of lifting components that are independent of each other in control, the distance of each support plate relative to the site can be adjusted according to the inclination angle between the chassis of the vehicle to be replaced and the site where it is located or the installation height of each battery assembly, so as to achieve the normal replacement of the battery. In addition, it can also be applied to the battery replacement requirements of some vehicles with multiple battery assemblies arranged at different installation heights or battery assemblies arranged obliquely.

[0119] In cases where the vehicle chassis is parallel to the site, etc., the control of each group of lifting components can also be linked, which is beneficial to simplifying the control logic and reducing the control difficulty.

[0120] For example, in Figure 2Among the three groups of lifting components 31 arranged along the first direction d1 as shown, each group of lifting components 31 is used to lift a support plate 21, and each group of lifting components 31 includes four lifting components 31. For the case where the vehicle chassis is parallel to the ground and the battery assembly needs to be lifted horizontally, each group of lifting components 31 can be controlled to lift synchronously, thus achieving a relatively simple control logic. For the situation where multiple battery assemblies are installed on the vehicle but the installation heights of the individual battery assemblies are different, each group of lifting components 31 can be independently controlled to lift the corresponding support plate 21 to different heights, so that the support plates 21 supporting the individual battery assemblies can be lifted to appropriate heights to meet the requirements of battery replacement.

[0121] Reference Figure 2 、 Figure 4 and Figure 5 , in some embodiments, the at least two support plates 21 are arranged along the first direction d1, a part and another part of each group of lifting components 31 are respectively located outside opposite ends of the corresponding support plate 21 of the lifting components 31 in the second direction d2, the first direction d1 is perpendicular to the second direction d2, and both the first direction d1 and the second direction d2 are perpendicular to the lifting direction of the support platform 20.

[0122] In Figure 2 , the lifting direction of the support platform 20 may be parallel to the third direction d3, and the first direction d1 is perpendicular to the lifting direction of the support platform 20. As the arrangement direction of the at least two support plates 21, the first direction d1 may be parallel or perpendicular to the horizontal access direction of the height space H formed between the bottom of the vehicle battery swapping device and the support surface G relative to the vehicle 70, and the second direction d2 is perpendicular to both the first direction d1 and the third direction d3.

[0123] By arranging the lifting components on the outer sides of opposite ends in the second direction of at least two support plates arranged along the first direction, the support plates can be arranged more compactly, reducing the space occupied and mutual interference of the lifting components and the support plates in the first direction, and facilitating the stable lifting of the support plates.

[0124] In some embodiments, the control of each lifting component 31 in each group of lifting components 31 is either synchronous or independent.

[0125] By independently controlling each lifting component in each group of lifting components, in conjunction with the synchronous or independent control of each group of lifting components, it is possible to selectively lift some or all of the lifting components to the same or different heights, thereby more flexibly adjusting the inclination angle of the support plate relative to the ground and meeting the battery replacement requirements for different inclination angles between the chassis of the vehicle to be battery-swapped and the site or different inclined battery installation angles of the vehicle.

[0126] For each group of lifting components that can be independently controlled or linkedly controlled, the control of each group of lifting components can also be linked, which is beneficial to simplifying the control logic and reducing the control difficulty.

[0127] Still referring to Figure 2 , for any group of lifting components 31, by independently controlling each lifting component 31, the support and lifting of the support plate with a preset inclination angle can be achieved through different lifting heights of the lifting components 31. This can meet the battery replacement requirements when the vehicle chassis is not parallel to the site or the battery components are installed obliquely. For the case where the vehicle chassis is parallel to the site and the battery components need to be lifted horizontally, each lifting component 31 can be controlled to lift linkedly, thus realizing a relatively simple control logic.

[0128] Figure 6 is Figure 3 an enlarged schematic view of the position corresponding to circle A in

[0129] Referring to Figure 4 and Figure 6 , in some embodiments, the plurality of unlocking and locking mechanisms 40 are distributed on two opposite sides 21a, 21b of each support plate 21 along the first direction d1.

[0130] The two sides 21a, 21b can be parallel to each other or not parallel. In Figure 6 , the sides 21a and 21b can also be set to have concave and convex parts in the second direction d2, so as to form an interlocking structure with adjacent support plates, so that a part of the width of adjacent support plates overlaps in the first direction d1, making the structure more compact. The unlocking and locking mechanism 40 can be arranged at the convex part of the side.

[0131] By distributing the unlocking and locking mechanisms on the opposite sides of the support plates along the arrangement direction of the plurality of support plates, each unlocking and locking mechanism can be prevented from interfering with the lifting components located outside both ends in the second direction, and it is also beneficial to realize the arrangement, disassembly and replacement of the unlocking and locking mechanisms.

[0132] Referring to Figures 3 - 6 , in some embodiments, the unlocking and locking mechanisms 40 located on the same side are arranged at intervals along the second direction d2.

[0133] On one (such as 21a or 21b) or both (such as 21a and 21b) of the two opposite sides of the support plate 21 along the first direction d1, a plurality of unlocking and locking mechanisms 40 arranged at intervals along the second direction d2 can be provided.

[0134] For the unlocking and locking mechanisms located on the same side, arranging them at intervals in the second direction can achieve multi-point locking of the battery or locking of multiple batteries in the second direction, meeting the unlocking and locking requirements of battery assemblies in different combination forms.

[0135] Figure 7 It is a schematic structural diagram of a front view angle in a state where the driving end of the linear telescopic actuator is located at the second working position according to some embodiments of the vehicle battery swapping device of the present disclosure. Figure 8 It is a schematic structural diagram of a front view angle in a state where the driving end of the linear telescopic actuator is located at the first working position according to some embodiments of the vehicle battery swapping device of the present disclosure. Figure 9 is Figure 3 an enlarged schematic diagram of the position corresponding to circle B in

[0136] Reference Figure 3 and Figure 9 Referring to and , in some embodiments, the lifting mechanism 30 includes at least two sets of lifting components 31, and at least one of the at least two sets of lifting components 31 includes: a linear telescopic actuator 311 and a lifting member 312. The linear telescopic actuator 311 is disposed on the bottom surface 11 of the frame 10 and is configured to drive the support table 20 to move in the third direction d3, and the third direction d3 is parallel to the lifting direction of the support table 20. The lifting member 312 has a support end 312a for supporting the support table 20 and a connection end 312b connected to the driving end of the linear telescopic actuator 311, wherein the connection end 312b is located on a side of the support end 312a away from the bottom surface 11 of the frame 10.

[0137] The linear telescopic actuator 311 can perform linear motion of its driving end based on electricity, magnetism, hydraulics, pneumatics, etc. Disposing the linear telescopic actuator 311 on the bottom surface 11 of the frame 10 and cooperating with the use of the lifting member 312 is beneficial to reducing the linear telescopic actuator 311 itself and achieving a smaller retracted space in the third direction for the overall vehicle battery swapping device. The lifting component uses a linear telescopic actuator and a lifting member to drive the support table to move up and down. The lifting member adjusts the height position of the support table it supports under the linear driving of the driving end of the linear telescopic actuator, which is beneficial to placing the battery in a lower support position and allowing a greater lifting distance to meet the battery swapping requirements of vehicles with a lower chassis.

[0138] Reference Figure 9, in some embodiments, the linear telescopic actuator 311 includes: a rigid chain mechanism 311a, a motor 311b, and a telescopic arm 311c. The rigid chain mechanism 311a has a housing and a rigid chain disposed in the housing, and the end of the rigid chain is fixedly connected to the connection end 312b. The motor 311b is drivingly connected to the rigid chain mechanism 311a and is configured to drive the rigid chain to move relative to the housing. The telescopic arm 311c is connected to both the housing and the connection end 312b and is sleeved outside the rigid chain.

[0139] The rigid chain of the rigid chain mechanism 311a can be wound up and retracted, and linear drive is achieved by releasing the rigid chain. This structure can achieve a more compact structure while obtaining higher control accuracy and occupying less space. In order to reduce or eliminate the adverse effects of lateral forces on the stable operation of the rigid chain, sleeving the telescopic arm outside the rigid chain can protect the rigid chain and improve the working stability of the linear telescopic actuator.

[0140] In some embodiments, the motor 311b includes a servo motor.

[0141] Using a servo motor to drive the rigid chain mechanism can achieve more precise control effects in cooperation with the rigid chain with higher precision and achieve higher transmission efficiency, thereby improving the accuracy of the control lifting assembly to achieve the lifting action.

[0142] Reference Figure 8 , in some embodiments, the driving end of the linear telescopic actuator 311 has a first working position, and the lifting member 312 is configured to make the distance h1 between the connection end 312b and the bottom surface 11 of the frame 10 in the third direction d3 not higher than the height H of the frame 10 in the third direction d3 when the driving end of the linear telescopic actuator 311 is in the first working position.

[0143] In Figure 8 , the driving end of the linear telescopic actuator 311 is installed with the connection end 312b of the lifting member 312 and is higher than the supporting end 312a of the lifting member 312. When the driving end of the linear telescopic actuator 311 is in the first working position, for example, the minimum retraction position of the linear telescopic actuator 311, the distance h1 between the connection end 312b and the bottom surface 11 of the frame 10 in the third direction d3 is lower than the height H of the frame 10 in the third direction d3 at this time. In other embodiments, when the driving end of the linear telescopic actuator 311 is in the first working position, the distance h1 may also be equal to the height H.

[0144] When the driving end of the linear telescopic actuator is in the first working position, by making the distance between the connecting end of the lifting member in the third direction relative to the bottom surface of the frame not higher than the height of the frame in the third direction, the overall height of the lifting assembly can be made lower in the retracted position of the linear telescopic actuator, so that it is easier to enter the lower side of a vehicle with a lower chassis for battery swapping.

[0145] Reference Figure 7 , in some embodiments, the driving end of the linear telescopic actuator 311 further has a second working position, and the lifting member 312 is configured such that when the driving end of the linear telescopic actuator 311 is in the second working position, the distance h2 between the connecting end 312b in the third direction d3 relative to the bottom surface 11 of the frame 10 is not less than twice the height H of the frame 10 in the third direction d3.

[0146] In Figure 7 , when the driving end of the linear telescopic actuator 311 is in the second working position, for example, the maximum extended position of the linear telescopic actuator 311, the distance h2 between the connecting end 312b in the third direction d3 relative to the bottom surface 11 of the frame 10 is twice the height H of the frame 10 in the third direction d3. In some other embodiments, when the driving end of the linear telescopic actuator 311 is in the second working position, the distance h2 can also be more than 2 times the height H.

[0147] When the driving end of the linear telescopic actuator is in the second working position, the distance between the connecting end of the lifting member in the third direction relative to the bottom surface of the frame is not less than twice the height of the frame in the third direction, which enables the support platform to achieve a larger lifting range and meet the battery swapping requirements for a larger range of chassis heights.

[0148] Reference Figure 2 And Figure 8 , in some embodiments, the frame 10 has a battery support seat 12, and the battery support seat 12 is configured to support the support platform 20 when the driving end of the linear telescopic actuator 311 is in the first working position, so that the supporting end 312a is disengaged from the support platform 20.

[0149] In Figure 2In the embodiment, the battery support seat 12 can adopt a convex block structure or a convex edge structure provided on the frame 10, so as to support at least part of the periphery of the support platform 20. The battery support seat is provided on the frame, and the battery support seat supports the support platform when the driving end of the linear telescopic actuator is in the first working position, so that the supporting end is out of contact with the support platform. In this way, when the vehicle battery replacement device moves as a whole, the support platform can obtain a more stable support effect, reduce the risk of horizontal slippage of the battery assembly when the vehicle battery replacement device moves as a whole, and can reduce the loss of the lifting assembly, so that the lifting mechanism is not easily affected by lateral forces.

[0150] In the above embodiments, the lifting member can be designed to be Z-shaped, and its connecting end is higher than the supporting end in the third direction. For example, a Z-shaped bending plate is used, and a rib plate is arranged between the adjacent angled bending surfaces to improve the strength and rigidity of the lifting member.

[0151] Figure 10 Yes Figure 6 An enlarged schematic diagram of the position corresponding to the circle C in the middle.

[0152] References Figure 7 and Figure 10 , in some embodiments, the vehicle battery replacement device further includes a floating mechanism 50. The floating mechanism 50 is located at the connection position between the lifting mechanism 30 and the support platform 20, and is configured to move the support platform 20 relative to the lifting mechanism 30 in at least one direction perpendicular to the lifting direction of the support platform 20.

[0153] The floating mechanism 50 can move the support platform 20 relative to the lifting mechanism 30 in at least one direction perpendicular to the lifting direction of the support platform 20. The moving direction here can be a direction parallel to the first direction d1, or a direction parallel to the second direction d2, or other directions located in the plane parallel to the first direction d1 and the second direction d2.

[0154] A floating mechanism is provided at the connection position between the lifting mechanism and the support platform so that the locking and unlocking mechanism is relieved of the force in the direction parallel to the support surface of the support platform during installation or use through the floating mechanism, thereby reducing the risk of damage to the locking and unlocking mechanism due to force caused by installation or operation errors.

[0155] References Figure 10 In some embodiments, the floating mechanism 50 includes a universal ball bearing 51, and the universal ball bearing 51 is located between the relative surfaces of the lifting mechanism 30 and the support platform 20 in the lifting direction of the support platform 20.

[0156] ​​The floating mechanism adopts a universal ball bearing, which can realize the floating function while allowing the support platform to disengage from the lifting mechanism in the lifting direction, facilitating disassembly and replacement. Moreover, this floating mechanism has a more compact structure.

[0157] Reference Figure 3 、 Figure 5 and Figure 9 , in some embodiments, the vehicle battery swapping device further includes: a steering wheel assembly 60 disposed on the frame 10.

[0158] The steering wheel assembly 60 may include components such as a wheel, a motor, a steering wheel, a speed reducer, a brake, and an angle control encoder. It not only has a very compact structure but also can achieve precise control of vehicle rotation and steering. The steering wheel assembly can achieve omnidirectional movement and can carry a certain weight.

[0159] In Figure 9 , the steering wheel assembly 60 adopts a horizontal structure, and its motor is spaced from the vehicle in the horizontal direction, thereby reducing the overall height of the steering wheel assembly 60, which is beneficial to reducing the space occupied by the vehicle battery swapping device in terms of height. The steering wheel assembly 60 can be disposed between adjacent linear telescopic actuators. For example, Figure 5 shown in the case of two sets of lifting mechanisms corresponding to two of the three support plates respectively, four steering wheel assemblies are respectively located between the linear telescopic actuators of two adjacent lifting mechanisms of each group of lifting mechanisms. By using the steering wheel assembly to realize the movement of the vehicle battery swapping device, the translation and steering of the vehicle battery swapping device can be conveniently carried out.

[0160] In one aspect of the present disclosure, a battery swapping system is provided, including the vehicle battery swapping device of any one of the foregoing embodiments.

[0161] The battery swapping system adopting the foregoing vehicle battery swapping device can improve the adaptability of battery replacement.

[0162] In some specific embodiments, as Figures 2 - 9 shown, the vehicle battery swapping device includes: a frame 10, a support platform 20, a lifting mechanism 30, a plurality of locking and unlocking mechanisms 40, and a steering wheel assembly 60 disposed on the frame 10. The support platform 20 is disposed on the frame 10 and includes at least two support plates 21 arranged along the first direction d1. The lifting mechanism 30 is disposed on the frame 10 and is operably connected to the support platform 20. The lifting mechanism 30 includes at least two sets of lifting components 31 corresponding to the at least two support plates 21 respectively. Each set of lifting components 31 includes four lifting components 31, two located outside one end of the corresponding support plate 21 in the second direction d2, and the other two located outside the other end of the corresponding support plate 21 in the second direction d2. The first direction d1 is perpendicular to the second direction d2.

[0163] A plurality of locking and unlocking mechanisms 40 are provided on two opposite sides of each support plate 21 along the first direction d1, and are arranged at intervals along the second direction d2. Each lifting assembly 31 is independently controlled, and each locking and unlocking mechanism 40 is grouped or independently controlled.

[0164] The lifting assembly 31 includes: a linear telescopic actuator 311 and a lifting member 312 provided on the bottom surface 11 of the frame 10. The lifting member 312 has a support end 312a for supporting the support table 20 and a connection end 312b connected to the driving end of the linear telescopic actuator 311. The connection end 312b is located on a side of the support end 312a away from the bottom surface 11 of the frame 10.

[0165] The linear telescopic actuator 311 includes: a rigid chain mechanism 311a, a motor 311b, and a telescopic arm 311c. The rigid chain mechanism 311a has a housing and a rigid chain provided in the housing, and the end of the rigid chain is fixedly connected to the connection end 312b. The motor 311b includes a servo motor and is drivingly connected to the rigid chain mechanism 311a, and is configured to drive the rigid chain to move relative to the housing. The telescopic arm 311c is connected to both the housing and the connection end 312b, and is sleeved outside the rigid chain.

[0166] The driving end of the linear telescopic actuator 311 has a first working position and a second working position. In a state where the driving end of the linear telescopic actuator 311 is in the first working position, the distance of the connection end 312b of the lifting member 312 from the bottom surface 11 of the frame 10 in the third direction d3 is not higher than the height H of the frame 10 in the third direction d3. In a state where the driving end of the linear telescopic actuator 311 is in the second working position, the distance of the connection end 312b of the lifting member 312 from the bottom surface 11 of the frame 10 in the third direction d3 is not lower than twice the height H of the frame 10 in the third direction d3.

[0167] The frame 10 has a battery support base 12, and the battery support base 12 is configured to support the support table 20 in a state where the driving end of the linear telescopic actuator 311 is in the first working position, so that the support end 312a is separated from contact with the support table 20.

[0168] The vehicle battery swapping device further includes a floating mechanism 50 located at the connection position between the lifting mechanism 30 and the support platform 20. The floating mechanism 50 can enable the support platform 20 to move relative to the lifting mechanism 30 in at least one direction perpendicular to the lifting direction of the support platform 20. The floating mechanism 50 includes a universal ball bearing 51, and the universal ball bearing 51 is located between the opposite surfaces of the lifting mechanism 30 and the support platform 20 in the lifting direction of the support platform 20.

[0169] Although the present disclosure has been described with reference to the preferred embodiments, various modifications can be made thereto and components therein can be replaced with equivalents without departing from the scope of the present disclosure. In particular, as long as there is no structural conflict, the various technical features mentioned in each embodiment can be combined in any manner. The present disclosure is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A vehicle battery replacement device, used for replacing a battery assembly (71) of a vehicle (70), comprising: Frame (10); A support platform (20), disposed on the frame (10), and configured to support a battery assembly (71) to be installed or removed; A lifting mechanism (30) is arranged on the frame (10) and is operably connected to the support platform (20), and is configured to drive the support platform (20) to rise and fall; and A plurality of locking and unlocking mechanisms (40) are arranged on the support platform (20) and are used to achieve locking or unlocking of the battery assembly (71) relative to the vehicle; The plurality of locking and unlocking mechanisms (40) are arranged at intervals on the support surface of the support platform (20), and the plurality of locking and unlocking mechanisms (40) include at least two groups of locking and unlocking mechanisms (40), and the control of each group of locking and unlocking mechanisms (40) is independent of each other.

2. The vehicle battery replacement device according to claim 1, wherein: Some or all of the at least two groups of locking and unlocking mechanisms (40) have one locking and unlocking mechanism (40).

3. The vehicle battery replacement device according to claim 1 or 2, wherein: The support platform (20) comprises at least two support plates (21), and the lifting mechanism (30) comprises at least two groups of lifting components (31), the at least two groups of lifting components (31) correspond to the at least two support plates (21) one by one and are operably connected, and the control of each group of lifting components (31) is linked or independent of each other.

4. The vehicle battery replacement device according to claim 3, wherein: The at least two support plates (21) are arranged along a first direction (d1), and a part and another part of each group of lifting components (31) are respectively located on the outer sides of two opposite ends of the support plate (21) corresponding to the lifting component (31) in a second direction (d2), the first direction (d1) is perpendicular to the second direction (d2), and the first direction (d1) and the second direction (d2) are both perpendicular to the lifting direction of the support platform (20).

5. The vehicle battery replacement device according to claim 3 or 4, wherein: The control of each lifting component (31) in each group of lifting components (31) is linked or independent of each other.

6. The vehicle battery replacement device according to claim 4 or 5, wherein: The plurality of locking and unlocking mechanisms (40) are distributed on two opposite side edges (21a; 21b) of each support plate (21) along the first direction (d1).

7. The vehicle battery replacement device according to claim 6, wherein: The locking and unlocking mechanisms (40) located on the same side (21a; 21b) are arranged at intervals along the second direction (d2).

8. The vehicle battery replacement device according to any one of claims 1 to 7, wherein: The lifting mechanism (30) comprises at least two groups of lifting components (31), and at least one lifting component (31) of the at least two groups of lifting components (31) comprises: a linear telescopic actuator (311), disposed on the bottom surface (11) of the frame (10), configured to drive the support platform (20) to move along a third direction (d3), wherein the third direction (d3) is parallel to a lifting direction of the support platform (20); and A lifting member (312) comprises a supporting end (312a) for supporting the supporting platform (20) and a connecting end (312b) connected to the driving end of the linear telescopic actuator (311), wherein the connecting end (312b) is located on a side of the supporting end (312a) away from the bottom surface (11) of the frame (10).

9. The vehicle battery replacement device according to claim 8, wherein: The linear telescopic actuator (311) comprises: A rigid chain mechanism (311a) comprises a housing and a rigid chain arranged on the housing, wherein an end of the rigid chain is fixedly connected to the connecting end (312b); a motor (311b) drivingly connected to the rigid chain mechanism (311a) and configured to drive the rigid chain to move relative to the housing; and The telescopic arm (311c) is connected to both the shell and the connecting end (312b), and is sleeved on the outside of the rigid chain.

10. The vehicle battery replacement device according to claim 9, wherein: The motor (311b) comprises a servo motor.

11. The vehicle battery replacement device according to any one of claims 8 to 10, wherein: The driving end of the linear telescopic actuator (311) has a first working position, and the lifting member (312) is configured so that when the driving end of the linear telescopic actuator (311) is in the first working position, the distance between the connecting end (312b) and the bottom surface (11) of the frame (10) in the third direction (d3) is not higher than the height (H) of the frame (10) in the third direction (d3).

12. The vehicle battery replacement device according to claim 11, wherein: The frame (10) has a battery support seat (12), and the battery support seat (12) is configured to support the support platform (20) when the driving end of the linear telescopic actuator (311) is in the first working position, so that the support end (312a) is out of contact with the support platform (20).

13. The vehicle battery replacement device according to claim 11 or 12, wherein: The driving end of the linear telescopic actuator (311) also has a second working position, and the lifting member (312) is configured so that when the driving end of the linear telescopic actuator (311) is in the second working position, the distance between the connecting end (312b) and the bottom surface (11) of the frame (10) in the third direction (d3) is not less than twice the height (H) of the frame (10) in the third direction (d3).

14. The vehicle battery replacement device according to any one of claims 1 to 13, further comprising: The floating mechanism (50) is located at the connection position between the lifting mechanism (30) and the support platform (20), and is configured to enable the support platform (20) to move relative to the lifting mechanism (30) in at least one direction perpendicular to the lifting direction of the support platform (20).

15. The vehicle battery replacement device according to claim 14, wherein: The floating mechanism (50) includes a universal ball bearing (51), and the universal ball bearing (51) is located between the opposing surfaces of the lifting mechanism (30) and the support platform (20) in the lifting direction of the support platform (20).

16. The vehicle battery replacement device according to any one of claims 1 to 15, further comprising: A steering wheel assembly (60) is arranged on the frame (10).

17. A battery replacement system, comprising: A vehicle battery replacement device as described in any one of claims 1 to 16.

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