Vehicle battery replacing device and battery replacing system

Abstract

The utility model relates to a vehicle battery replacing device and system, the vehicle battery replacing device comprises a walking mechanism, the walking mechanism is provided with a push-pull assembly, a base body and a mounting structure arranged on the base body, and the push-pull assembly is used for a user to push and pull to drive the walking mechanism to move so as to transfer a battery assembly of a vehicle; the locking and unlocking mechanism is arranged on the walking mechanism and used for bearing a battery assembly to be mounted or dismounted so as to achieve locking or unlocking of the battery assembly relative to the vehicle. The lifting mechanism is arranged on the walking mechanism, is operably connected with the locking and unlocking mechanism and is configured to drive the locking and unlocking mechanism to ascend and descend relative to the walking mechanism; wherein the base body is arranged below the locking and unlocking mechanism, the lifting mechanism is arranged on the mounting structure, and the push-pull assembly is arranged on the side, away from the lifting mechanism, of the mounting structure.

Description

Technical Field

[0001] The present disclosure relates to the field of vehicle battery replacement, and in particular to a vehicle battery replacement device and a battery replacement 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 to solving human environmental pollution and energy crisis.

[0003] The bottom-mounted battery assembly is connected to the vehicle's battery bracket with a quick-change lock. To meet the maintenance needs of the battery assembly, some related technologies require operators to replace the battery assembly at the bottom of the vehicle. How to improve the reliability of battery replacement has become one of the important issues. Utility Model Content

[0004] In view of this, the embodiments of the present disclosure provide a vehicle battery replacement device and a battery replacement system, which help to improve the reliability of battery replacement.

[0005] In one aspect of the present disclosure, a vehicle battery replacement device is provided, comprising: a travel mechanism, having a push-pull assembly, a base, and a mounting structure arranged on the base, wherein the push-pull assembly is used by a user to push and pull to drive the travel mechanism to move so as to transport a battery assembly of a vehicle; a locking and unlocking mechanism, arranged on the travel mechanism, used to carry the battery assembly and realize locking or unlocking of the battery assembly relative to the vehicle; and a lifting mechanism, arranged on the travel mechanism and connected to the locking and unlocking mechanism, configured to drive the locking and unlocking mechanism to rise and fall relative to the travel mechanism;

[0006] The base is arranged below the locking and unlocking mechanism, the lifting mechanism is arranged on one side of the mounting structure, and the push-pull assembly is arranged on a side of the mounting structure away from the lifting mechanism.

[0007] The use of a locking and unlocking mechanism to support the battery assembly and install the locking and unlocking assembly can meet the battery replacement needs of different vehicles. Compared with the related technology of manual complete replacement, the vehicle battery replacement device has higher battery replacement efficiency and is safer. The new battery assembly to be replaced is transported to the vicinity of the faulty vehicle through the walking mechanism, and the replaced old battery assembly is transported to the maintenance site, which is convenient for the maintenance or disassembly and assembly of the battery assembly, and helps to make the battery replacement operation more flexible and reliable.

[0008] In some embodiments, the walking mechanism further includes: one or more moving wheels, which are arranged at the bottom of the base.

[0009] The walking mechanism includes a base and a mounting structure, which provides sufficient installation space for the arrangement of functional structures such as moving wheels, lifting mechanisms and push-pull components, without occupying the operating and moving space of the locking and unlocking mechanisms, so that the vehicle battery replacement device can adapt to different application scenarios.

[0010] In some embodiments, the push-pull assembly includes: a push-pull rod rotatably connected to the mounting structure; wherein, there are multiple moving wheels, at least one of the multiple moving wheels is connected to the end of the push-pull rod and is configured to rotate with the rotation of the push-pull rod.

[0011] By setting the push-pull rod, the user can flexibly adjust the travel state and steering posture of the walking mechanism, which can improve the controllability of the vehicle battery replacement device and help improve the efficiency of battery transportation.

[0012] In some embodiments, the push-pull assembly further includes: two gripping handles, which are respectively arranged on both sides of the mounting structure along the width direction of the walking mechanism.

[0013] The holding handle makes it easy for the operator to grasp and support the walking mechanism from multiple directions, and can allow multiple operators to push and pull the walking mechanism on the left and right sides of the walking mechanism at the same time by operating the holding handle, thereby improving the transportation efficiency of heavier battery components. The operator can also grasp a holding handle in each hand to apply push and pull force to the walking mechanism more accurately and reliably.

[0014] In some embodiments, the lifting mechanism includes: a guide structure, connected to the mounting structure and extending in the vertical direction; wherein the locking and unlocking mechanism includes: a platform, used to carry the battery assembly to be installed or disassembled; a connecting structure, connected to the platform and sleeved on the outer periphery of the guide structure, configured to move relative to the guide structure to drive the platform to rise and fall.

[0015] The platform is connected to the guide structure by setting a connecting structure, and the connecting structure is moved vertically by the lifting mechanism to drive the platform to rise and fall, which is convenient for the spatial arrangement of the lifting mechanism and provides sufficient movement space for the lifting of the platform, so as to adapt to vehicle chassis of different heights.

[0016] In some embodiments, the lifting mechanism further includes: a driving member, which is dynamically connected to the guide structure and configured to drive the guide structure to rotate around its own axis so that the connecting structure moves vertically relative to the guide structure along the periphery of the guide structure.

[0017] A power connection is set between the driving component and the lifting mechanism to facilitate driving the platform up and down according to actual needs. The use of the driving component can improve the carrying capacity of the battery assembly, reducing the risk of bumps and collisions caused by using wood to hold the battery assembly in related technologies. There is no need for operators to lie under the vehicle, which helps to improve the safety and reliability of battery replacement operations.

[0018] In some embodiments, the lifting mechanism further includes: a turntable connected to the guide structure, the turntable being used for a user to rotate so that the guide structure rotates around its own axis and drives the connecting structure to move vertically relative to the guide structure along the periphery of the guide structure.

[0019] A turntable is provided for the operator to manually adjust the vertical height of the platform, which helps in emergency response and can also more accurately adjust the position of the platform according to the height of the battery bracket.

[0020] In some embodiments, the connecting structure has a plurality of limit holes arranged at intervals along the vertical direction; the mounting structure has an elastic member and a limit member connected to the elastic member, and the limit member is configured to be inserted into the limit hole to limit the vertical movement of the platform, or to retract from the limit hole as the elastic member is compressed to allow the lifting mechanism to drive the platform to move vertically.

[0021] By setting limit holes and limit parts, the position of the platform can be locked after the platform is raised or lowered to a specified height, reducing the risk of platform shaking or abnormal descent, which is beneficial to improving the safety and reliability of battery replacement and transfer operations.

[0022] In some embodiments, the vehicle battery swap device further includes: a braking mechanism connected to the base body, which is used to limit the movement of the running mechanism. By setting the braking mechanism, the position of the vehicle battery swap device can be locked after the vehicle battery swap device moves to a specified position, thereby reducing the risk of the running mechanism slipping during the battery swap operation, and helping to improve the reliability and safety of the battery swap operation.

[0023] In some embodiments, the vehicle battery replacement device also includes: a power supply device, which is connected to a side of the mounting structure away from the lifting mechanism and is located between the two gripping handles, and is configured to supply power to the locking and unlocking mechanism.

[0024] The power supply device is arranged between the two gripping handles, which is convenient for operators to operate. The operation process will not interfere with the lifting and movement of the platform, and has high space utilization.

[0025] In another aspect of the present disclosure, a battery replacement system is provided, comprising: a vehicle battery replacement device according to any of the aforementioned embodiments.

[0026] A battery replacement system that uses the aforementioned vehicle battery replacement device helps to improve the reliability of battery replacement.

[0027] Therefore, according to the embodiment of the present disclosure, a locking and unlocking mechanism is used to support the battery assembly and install the locking and unlocking assembly, which can meet the battery replacement needs of different vehicles. Compared with the related technology of manual complete replacement, the battery replacement efficiency of the vehicle battery replacement device is higher and safer. The new battery assembly to be replaced is transported to the vicinity of the faulty vehicle through the walking mechanism, and the replaced old battery assembly is transported to the maintenance site, which is convenient for the maintenance or disassembly and assembly of the battery assembly, and helps to improve the efficiency and reliability of battery replacement.

[0028] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0030] Figure 1 is a schematic diagram of a battery replacement scenario according to some embodiments of the vehicle battery replacement device disclosed herein;

[0031] Figure 2 is a schematic structural diagram of some embodiments of the vehicle battery replacement device disclosed in the present invention;

[0032] Figure 3 is a schematic structural diagram of some other embodiments of the vehicle battery replacement device disclosed in the present invention;

[0033] Figure 4 is a side view of some embodiments of the vehicle battery replacement device according to the present disclosure;

[0034] Figure 5 is a side view of the locking and unlocking mechanism rising according to some embodiments of the vehicle battery replacement device of the present disclosure;

[0035] Figure 6 Schematic diagrams of battery replacement scenarios according to other embodiments of the vehicle battery replacement device disclosed herein;

[0036] Figure 7 Schematic diagrams of battery replacement scenarios according to some other embodiments of the vehicle battery replacement device disclosed herein;

[0037] Figure 8 is a side view of a battery replacement scenario according to some embodiments of the vehicle battery replacement device of the present disclosure;

[0038] Fig. 9 is a side view of a battery replacement scene according to some other embodiments of the vehicle battery replacement device disclosed in the present invention;

[0039] Fig.10 It is a side view of a battery replacement scene according to some other embodiments of the vehicle battery replacement device disclosed in the present invention.

[0040] The reference numerals in the specific implementation manner are as follows:

[0041] 1. Walking mechanism; 11. Push-pull assembly; 111. Push-pull rod; 111a. Grip end; 111b. Operation end; 112. Grip handle; 112a. First grip portion; 112b. Second grip portion; 12. Base; 13. Moving wheel; 14. Mounting structure; 141. Limiting member; 15. Guard plate;

[0042] 2. locking and unlocking mechanism; 21. platform; 22. locking and unlocking assembly; 23. connecting structure; 231. limiting hole;

[0043] 3. Lifting mechanism; 31. Guide structure; 32. Driving member; 33. Turntable; 34. Mounting seat;

[0044] 4. Braking mechanism;

[0045] 51. Power supply device; 52. Storage battery;

[0046] 6. Vehicle; 61. Battery assembly; 62. Battery bracket.

[0047] It should be understood that the size of each part shown in the accompanying drawings is not drawn according to the actual proportional relationship. In addition, the same or similar reference numerals represent the same or similar components. DETAILED DESCRIPTION

[0048] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0049] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0050] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0051] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0052] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0053] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0054] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0055] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like 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 a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0056] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the features of the following embodiments can be combined with each other.

[0057] The “plurality” that appears in the embodiments of the present disclosure refers to more than two (including two).

[0058] 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.

[0059] In some embodiments, the battery may 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 may include multiple battery cells connected in series, in parallel, or in mixed connection.

[0060] In some embodiments, the battery may be a battery pack, which includes a case and battery cells, wherein the battery cells or battery modules are accommodated in the case.

[0061] In the embodiment of the present disclosure, the battery cell may be a secondary battery. A secondary battery refers to a battery cell that can be continuously used by activating active materials by charging after the battery cell is discharged.

[0062] The battery cell can 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 hydrogen battery, a nickel cadmium battery, a lead storage battery, etc., which is not limited in the embodiments of the present application.

[0063] The battery cell includes an electrode assembly. The electrode assembly includes a first pole piece and a second pole piece with opposite polarities, and also includes a separator disposed between the first pole piece and the second pole piece. In some embodiments, the first pole piece is a positive pole piece, and the second pole piece is a negative pole piece. In other embodiments, the first pole piece is a negative pole piece, and the second pole piece is a positive pole piece. During the charge and discharge process of the battery cell, active ions (such as lithium ions) are embedded and released back and forth between the positive pole piece and the negative pole piece. The separator is disposed between the positive pole piece and the negative pole piece, which can prevent the positive and negative poles from short-circuiting, while allowing active ions to pass through.

[0064] In some embodiments, the positive electrode sheet may include a positive current collector substrate and a positive active material layer disposed on at least one surface of the positive current collector substrate. As an example, the positive current collector substrate has two surfaces opposite to each other in its own thickness direction, and the positive active material layer is disposed on any one or both of the two opposite surfaces of the positive current collector substrate.

[0065] As an example, the positive electrode current collector substrate can be a metal foil or a composite current collector. For example, as the metal foil, aluminum or stainless steel treated with silver surface, stainless steel, copper, aluminum, nickel, carbon electrode, carbon, nickel or titanium can be used.

[0066] The composite current collector may include a polymer material base layer and a metal layer. The composite current collector may be formed by placing a metal material (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.).

[0067] 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 traditional materials that can be used as positive electrode active material layers of batteries 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 lithium-containing phosphates may include, but are not limited to, at least one of lithium iron phosphate (such as LiFePO4 (also referred to as LFP)), a composite material of lithium iron phosphate and carbon, lithium manganese phosphate (such as LiMnPO4), a composite material of lithium manganese phosphate and carbon, lithium iron manganese phosphate, and a composite material of lithium iron manganese phosphate and carbon. Examples of lithium transition metal oxides may include, but are not limited to, lithium cobalt oxide (such as LiCoO2), lithium nickel oxide (such as LiNiO2), lithium manganese oxide (such as LiMnO2, LiMn2O4), lithium nickel cobalt oxide, lithium manganese cobalt oxide, lithium nickel manganese oxide, lithium nickel cobalt manganese oxide (such as LiNi 1 / 3 Co 1 / 3Mn 1 / 3 O2 (also referred to as NCM 333 )、LiNi 0.5 Co 0.2 Mn 0.3 O2 (also referred to as NCM 523 )、LiNi 0.5 Co 0.25 Mn 0.25 O2 (also referred to as NCM 211 )、LiNi 0.6 Co 0.2 Mn 0.2 O2 (also referred to as NCM 622 )、LiNi 0.8 Co 0.1 Mn 0.1 O2 (also referred to as NCM 811 ), lithium nickel cobalt aluminum oxide (such as LiNi 0.85 Co 0.15 Al 0.05 O2) and its modified compounds, etc.

[0068] In some embodiments, the negative electrode sheet may include a negative electrode current collector substrate.

[0069] As an example, the negative electrode current collector substrate can be a metal foil, a foamed metal or a composite current collector. For example, as a metal foil, aluminum or stainless steel treated with silver, stainless steel, copper, aluminum, nickel, carbon electrode, carbon, nickel or titanium, etc. can be used. The foamed metal can be foamed nickel, foamed copper, foamed aluminum, foamed alloy, or foamed 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 placing a metal material (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.).

[0070] In some embodiments, the negative electrode sheet 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.

[0071] As an example, the negative electrode current collector substrate has two surfaces facing each other in its thickness direction, and the negative electrode active material layer is disposed on any one or both of the two facing surfaces of the negative electrode current collector substrate.

[0072] As an example, the negative electrode active material layer may adopt the negative electrode active material layer for battery cells 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, lithium titanate, etc. The silicon-based material may be selected from at least one of elemental silicon, silicon oxide compounds, silicon-carbon composites, silicon-nitrogen composites, and silicon alloys. The tin-based material may be selected from at least one of elemental tin, tin oxide compounds, and tin alloys. However, the present disclosure is not limited to these materials, and other traditional materials that can be used as negative electrode active material layers for batteries may also be used. These negative electrode active material layers may be used alone or in combination of two or more.

[0073] 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.

[0074] In some embodiments, the separator is a separator. The present disclosure has no particular limitation on the type of separator, and any known separator with a porous structure having good chemical stability and mechanical stability can be selected.

[0075] As an example, the main material of the separator can be selected from at least one of glass fiber, non-woven fabric, polyethylene, polypropylene, polyvinylidene fluoride, and ceramic. The separator can be a single-layer film or a multi-layer composite film, without particular limitation. When the separator is a multi-layer composite film, the materials of each layer can be the same or different, without particular limitation. The separator can be a separate component located between the positive electrode sheet and the negative electrode sheet, or it can be located between the positive electrode sheet and the negative electrode sheet and attached to the surface of the positive electrode sheet and / or the surface of the negative electrode sheet.

[0076] In some embodiments, the separator is a solid electrolyte, which is disposed between the positive electrode sheet and the negative electrode sheet and plays the role of transmitting ions and isolating the positive and negative electrodes.

[0077] In some embodiments, the battery cell further includes an electrolyte, which plays a role of conducting ions between the positive and negative electrodes. The present disclosure has no specific restrictions on the type of electrolyte, which can be selected according to needs. The electrolyte can be liquid, gel or solid.

[0078] As an example, the liquid electrolyte includes an electrolyte salt and a solvent.

[0079] In some embodiments, the electrolyte salt can 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 difluorooxalatoborate, lithium dioxalatoborate, lithium difluorodioxalatophosphate, and lithium tetrafluorooxalatophosphate.

[0080] In some embodiments, the solvent can 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, cyclopentane, dimethyl sulfone, methyl ethyl sulfone and diethyl sulfone. The solvent can also be selected from ether solvents. Ether solvents can 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.

[0081] As an example, the gel electrolyte includes a polymer as the electrolyte skeleton network, combined with an ionic liquid-lithium salt.

[0082] As examples, the solid electrolyte includes a polymer solid electrolyte, an inorganic solid electrolyte, and a composite solid electrolyte.

[0083] As an example, the polymer solid electrolyte may be polyether (polyethylene oxide), polysiloxane, polycarbonate, polyacrylonitrile, polyvinylidene fluoride, polymethyl methacrylate, a single ion polymer, polyionic liquid-lithium salt, cellulose, and the like.

[0084] As an example, the inorganic solid electrolyte can be an oxide solid electrolyte (crystalline perovskite, sodium superconducting ion conductor, garnet, amorphous LiPON film), a sulfide solid electrolyte (crystalline lithium superion conductor (lithium germanium phosphosulfide, silver germanium sulfide), amorphous sulfide) and one or more of a halide solid electrolyte, a nitride solid electrolyte and a hydride solid electrolyte.

[0085] As an example, the composite solid electrolyte is formed by adding an inorganic solid electrolyte filler to a polymer solid electrolyte.

[0086] In some embodiments, the electrode assembly includes a winding structure. The positive electrode sheet, the negative electrode sheet and the separator are wound into a winding structure. The positive electrode sheet and the negative electrode sheet can be provided with one or more respectively. As an example, a plurality of positive electrode sheets and a plurality of negative electrode sheets are alternately arranged along the thickness direction of the electrode sheet.

[0087] In some embodiments, the shape of the electrode assembly can be cylindrical, flat, or polygonal.

[0088] In some embodiments, the positive electrode sheet includes a positive electrode tab, and the negative electrode sheet includes a negative electrode tab, and the positive electrode tab and the negative electrode tab can be used to conduct current from the electrode assembly. The positive electrode tab and the negative electrode tab are connected to the positive current collector substrate and the negative current collector substrate, respectively. 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.

[0089] 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 may be a steel housing, an aluminum housing, a plastic housing (such as polypropylene), a composite metal housing (such as a copper-aluminum composite housing), or an aluminum-plastic film.

[0090] As an example, the battery cell may 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 polygonal battery, such as a hexagonal battery.

[0091] The bottom-mounted battery assembly has a large amount of power and is heavy. The battery assembly is connected to the battery bracket of the vehicle with a quick-change lock, and the number of connecting locks is large. If the battery assembly fails during road operation, the battery assembly needs to be removed from the battery bracket for inspection or replacement. Some related technologies use electric forklifts with long fork arms to hold the battery box with wood, and the operator lies on the bottom of the vehicle to remove or install the quick-change lock of the battery assembly. The electric forklift is easy to bump into the battery box, and there are also safety hazards for operators working under the vehicle.

[0092] In view of this, a vehicle battery replacement device is provided in an embodiment of the present disclosure, which helps to improve the reliability of battery replacement.

[0093] In one aspect of the present disclosure, a vehicle battery replacement device is provided, comprising:

[0094] The walking mechanism comprises a push-pull assembly, a base body and a mounting structure arranged on the base body, wherein the push-pull assembly is used for a user to push and pull to drive the walking mechanism to move so as to transport the battery assembly of the vehicle;

[0095] A locking and unlocking mechanism, provided on the traveling mechanism, for carrying the battery assembly and realizing locking or unlocking the battery assembly relative to the vehicle; and

[0096] A lifting mechanism, which is arranged on the traveling mechanism and connected to the locking and unlocking mechanism, and is configured to drive the locking and unlocking mechanism to rise and fall relative to the traveling mechanism;

[0097] The base is arranged below the locking and unlocking mechanism, the lifting mechanism is arranged on the mounting structure, and the push-pull assembly is arranged on a side of the mounting structure away from the lifting mechanism.

[0098] In this embodiment, a locking and unlocking mechanism is used to support the battery assembly and install the locking and unlocking assembly, which can meet the battery replacement needs of different vehicles. Compared with the related technology of manual complete replacement, the battery replacement efficiency of the vehicle battery replacement device is higher and safer. The new battery assembly to be replaced is transported to the vicinity of the faulty vehicle through the walking mechanism, and the replaced old battery assembly is transported to the maintenance site, which is convenient for the maintenance or disassembly and assembly of the battery assembly, and helps to make the battery replacement operation more flexible and reliable.

[0099] Figure 1 Schematic diagram of battery replacement scenarios according to some embodiments of the vehicle battery replacement device disclosed in the present invention. Figure 1 In some embodiments of the vehicle battery replacement device, the vehicle 6 may be a fuel vehicle, a gas vehicle or a new energy vehicle, the new energy vehicle may be a pure electric vehicle or a hybrid vehicle, etc., the vehicle may be a household vehicle or a commercial vehicle. A battery bracket 62 is provided at the bottom of the vehicle 6, and the battery assembly 61 is connected to the battery bracket 62 by a quick-change lock.

[0100] The vehicle battery replacement device can disassemble the battery assembly 61 installed on the vehicle 6 at the bottom of the vehicle 6, and can also install the battery assembly 61 on the vehicle 6 at the bottom of the vehicle 6. The vehicle battery replacement device can enter the height space H formed between the bottom of the vehicle 6 and the support surface G. The support surface G can be the ground of the site of the battery replacement station or the surface of the battery replacement platform.

[0101] The battery assembly 61 can be used to power the vehicle 6. For example, the battery assembly 61 can be used as the operating power supply of the vehicle 6 and the circuit system of the vehicle 6, such as the working power demand during the start, navigation and operation of the vehicle 6. The battery assembly 61 can not only be used as the operating power supply of the vehicle 6, but also as the driving power supply of the vehicle 6, replacing or partially replacing fuel or natural gas to provide driving force for the vehicle 6.

[0102] The vehicle 6 may also be provided with axles, wheels, motors and controllers, and the controller is used to control the power supplied to the motor by the battery assembly 61. For example, when the vehicle 6 uses the battery assembly 61 as a driving power source, the battery assembly 61 replaces or partially replaces fuel or natural gas to provide the motor with the power required for uniform speed and acceleration. The motor is used to drive the axle to rotate, thereby driving the wheels to rotate.

[0103] The battery assembly 61 may include one or more batteries. In different battery assemblies, at least one of the size, shape, specification, quantity and position of the batteries is different. In addition to the batteries, the battery assembly 61 may also include a frame structure for fixing multiple batteries.

[0104] Figure 2 is a schematic diagram of the structure of some embodiments of the vehicle battery replacement device disclosed in the present invention, Figure 3 is a schematic diagram of the structure of other embodiments of the vehicle battery replacement device according to the present disclosure, Figure 4 is a side view of some embodiments of the vehicle battery replacement device according to the present disclosure, Figure 5 It is a side view of the rising locking and unlocking mechanism according to some embodiments of the vehicle battery exchange device of the present disclosure.

[0105] refer to Figure 2~Figure 5, an embodiment of the present disclosure provides a vehicle battery replacement device, including: a traveling mechanism 1, a locking and unlocking mechanism 2 and a lifting mechanism 3. The traveling mechanism 1 has a push-pull assembly 11, and the push-pull assembly 11 is used by a user to push and pull so that the traveling mechanism 1 can transport the battery assembly 61 of the vehicle 6. The locking and unlocking mechanism 2 is arranged on the traveling mechanism 1, and is used to carry the battery assembly 61 and realize the locking or unlocking of the battery assembly 61 relative to the vehicle 6. The lifting mechanism 3 is arranged on the traveling mechanism 1 and is operably connected to the locking and unlocking mechanism 2, and is configured to drive the locking and unlocking mechanism 2 to rise and fall relative to the traveling mechanism 1. The locking and unlocking mechanism 2 is capable of replacing the battery assembly 61 of the vehicle 6, and the locking and unlocking mechanism 2 may include a platform 21 and a locking and unlocking assembly 22, the platform 21 is used to carry the battery assembly 61 to be installed or removed, and the locking and unlocking assembly 22 is arranged on the platform 21, and is used to realize the locking or unlocking of the battery assembly 61 relative to the vehicle 6.

[0106] The platform 21 is used to install the locking and unlocking assembly 22, and can support the new battery assembly to be replaced or the old battery assembly to be removed. The lifting mechanism 3 is used to drive the platform 21 to rise and fall, so as to achieve the docking, locking or unlocking of the locking and unlocking assembly 22 and the battery assembly 61, and to raise or lower the height position of the battery assembly carried by the platform 21 by raising or lowering the platform 21, so as to adapt to vehicles with different chassis heights.

[0107] The walking mechanism 1 has a push-pull component 11, a base 12 and an installation structure 14 arranged on the base 12, which is convenient for the operator to drive the vehicle battery replacement device to move by pushing and pulling the push-pull component 11, so that the battery assembly 61 can be flexibly and quickly transported to the location where the vehicle fails, and the faulty battery assembly 61 can be taken away from the fault location.

[0108] The base 12 is disposed below the locking and unlocking mechanism 2 , the lifting mechanism 3 is disposed on the mounting structure 14 , and the push-pull assembly 11 is disposed on a side of the mounting structure 14 away from the lifting mechanism 3 .

[0109] The base 12 includes but is not limited to a frame structure with a strong load-bearing capacity. The moving wheels 13 include but are not limited to rollers that travel on a plane, and can also be track wheels that can run on a track.

[0110] The mounting structure 14 includes but is not limited to being arranged on one side of the base 12 along the length direction of the base 12, including but not limited to being vertically connected to the base 12. The mounting structure 14 is provided with guard plates 15 on both sides of the mounting structure 14 along the width direction of the base 12, the guard plates 15 are connected to one side of the mounting structure 14 close to the lifting mechanism 3, and are vertically arranged to the mounting structure 14 and the base 12, so as to improve the connection strength between the mounting structure 14 and the base 12 on both sides of the mounting structure 14, and ensure the structural reliability of the mounting structure 14.

[0111] The mounting structure 14 includes but is not limited to being in a plate shape, which is convenient for the installation of the lifting mechanism 3, the push-pull assembly 11, and the arrangement of the power supply device 51 and the storage battery 52. ​​The push-pull assembly 11 and the lifting mechanism 3 are arranged on both sides of the mounting structure 14, which is conducive to improving space utilization. The base 12, the mounting structure 14 and the guard plate 15 are made of one piece or connected by assembly.

[0112] In this embodiment, the locking and unlocking mechanism 2 is used to support the battery assembly 61 and install the locking and unlocking assembly 22, which can meet the battery replacement needs of different vehicles. Compared with the related technology of manual complete replacement, the battery replacement efficiency of the vehicle battery replacement device is higher and safer. The operator pushes and pulls the push-pull assembly 11 to make the walking mechanism 1 transport the new battery assembly 61 to be replaced to the vicinity of the faulty vehicle and transport the replaced old battery assembly 61 to the maintenance site, which is convenient for the maintenance or disassembly and assembly of the battery assembly 61, and helps to make the battery replacement operation more flexible and reliable.

[0113] Figure 2 The A direction is the length direction of the substrate 12, and the B direction is the width direction of the substrate 12. Figure 2~Figure 5 In some embodiments, the walking mechanism 1 further includes one or more moving wheels 13. The one or more moving wheels 13 are disposed at the bottom of the base 12.

[0114] In this embodiment, the walking mechanism 1 provides sufficient installation space for the arrangement of functional structures such as the moving wheels 13, the lifting mechanism 3 and the push-pull assembly 11, without occupying the operating and moving space of the locking and unlocking mechanism 2, so that the vehicle battery replacement device can adapt to different application scenarios.

[0115] refer to Figure 2~Figure 5 In some embodiments, the push-pull assembly 11 includes a push-pull rod 111, which is rotatably connected to the mounting structure 14. There are multiple moving wheels 13, and at least one moving wheel 13 among the multiple moving wheels 13 is connected to the end of the push-pull rod 111 and is configured to rotate with the rotation of the push-pull rod 111.

[0116] The push-pull rod 111 includes a gripping end 111a and an operating end 111b. The gripping end 111a includes but is not limited to a ring shape for user's convenience of gripping. The operating end 111b is connected to one or two moving wheels 13. The user can drive the walking mechanism 1 forward or backward by pushing and pulling the gripping end 111a, and can adjust the travel direction of the walking mechanism 1 by rotating the gripping end 111a.

[0117] The diameter of the moving wheel 13 connected to the operating end 111b includes but is not limited to being larger than the diameter of the moving wheel 13 disposed below the base 12, so that the moving wheel 13 connected to the operating end 111b acts as a driving wheel to drive the moving wheel 13 at the bottom of the base 12 to move. The moving wheels 13 disposed below the base 12 can be respectively disposed at both ends of the base 12 along the width direction of the base 12, so that the base 12 can turn.

[0118] In this embodiment, by providing a push-pull rod 111, it is convenient for the user to flexibly adjust the traveling state and steering posture of the walking mechanism 1, which can improve the controllability of the vehicle battery replacement device and is beneficial to improving the efficiency of battery transportation.

[0119] refer to Figure 2~Figure 5 In some embodiments, the push-pull assembly 11 further includes two gripping handles 112 , and the two gripping handles 112 are respectively disposed on both sides of the mounting structure 14 along the width direction of the walking mechanism 1 .

[0120] The gripping handle 112 is disposed on both sides of the mounting structure 14 along the width direction of the base 12. The gripping handle 112 includes a plurality of first gripping portions 112a disposed in parallel and spaced apart from each other and a second gripping portion 112b connected to the plurality of first gripping portions 112a. The first gripping portion 112a and the second gripping portion 112b include but are not limited to being integrally formed, and the gripping handle 112 is detachably connected to the base 12.

[0121] The first gripping portion 112a includes but is not limited to being arranged perpendicularly to the mounting structure 14, and the second gripping portion 112b is parallel to the plane where the mounting structure 14 is located. The gripping handle 112 can provide a plurality of gripping areas for the user.

[0122] In this embodiment, the holding handle 112 makes it easy for the operator to grasp and support the walking mechanism 1 from multiple directions, and can allow multiple operators to push and pull the walking mechanism 1 on the left and right sides of the walking mechanism 1 at the same time by operating the holding handle 112, thereby improving the transportation efficiency of the heavier battery assembly 61. The operator can also grasp a holding handle 112 with each hand to apply push and pull force to the walking mechanism 1 more accurately and reliably.

[0123] refer to Figure 2~Figure 5 In some embodiments, the lifting mechanism 3 includes a guide structure 31, which is connected to the mounting structure 14 and extends in the vertical direction. The locking and unlocking mechanism 2 includes a platform 21 and a connecting structure 23, wherein the platform 21 is used to carry the battery assembly 61 to be installed or removed, and the connecting structure 23 is connected to the platform 21 and sleeved on the outer periphery of the guide structure 31, and is configured to move relative to the guide structure 31 to drive the platform 21 to rise and fall.

[0124] The guide structure 31 includes but is not limited to being in a columnar shape. The lifting mechanism 3 may further include a mounting seat 34 , which is vertically connected to the mounting structure 14 . The guide structure 31 vertically passes through the mounting seat 34 to be disposed on the mounting structure 14 .

[0125] The connection structure 23 is disposed below the mounting seat 34. The connection structure 23 includes but is not limited to a bent shape, having an end surface parallel to the platform 21 and an end surface parallel to the mounting structure 14. The connection structure 23 has a guide hole extending in the vertical direction for the guide structure 31 to penetrate.

[0126] The inner wall of the guide hole of the connection structure 23 includes but is not limited to threads, and the outer periphery of the guide structure 31 includes but is not limited to threads that cooperate with the inner wall of the guide hole, so that the connection structure 23 moves vertically with the rotation of the guide structure 31.

[0127] In this embodiment, the platform 21 is connected to the guide structure 31 by setting a connecting structure 23, and the connecting structure 23 is moved vertically by the lifting mechanism 3 to drive the platform 21 to rise and fall, which is convenient for the spatial arrangement of the lifting mechanism 3 and provides sufficient movement space for the lifting of the platform 21, so as to adapt to vehicle chassis of different heights.

[0128] refer to Figure 2~Figure 5 In some embodiments, the lifting mechanism 3 further includes a driving member 32, which is dynamically connected to the guide structure 31 and configured to drive the guide structure 31 to rotate around its own axis so that the connecting structure 23 moves vertically relative to the guide structure 31 along the periphery of the guide structure 31.

[0129] The driving member 32 includes but is not limited to being arranged on one side of the guide structure 31 along the width direction of the base 12, and the driving member 32 provides a power source for the guide structure 31 so as to make the guide structure 31 rotate, thereby driving the connecting structure 23 to move up and down in the vertical direction, thereby driving the platform 21 to rise and fall. The driving member 32 includes but is not limited to being electrically driven, pneumatically driven or hydraulically driven.

[0130] In this embodiment, a driving member 32 is provided to be power-connected to the lifting mechanism 3, so as to facilitate driving the platform 21 to rise and fall according to actual needs. The use of the driving member 32 can improve the carrying capacity of the battery assembly 61, and reduce the risk of collision caused by using wood to hold the battery assembly 61 in the related technology. There is no need for operators to lie under the vehicle, which helps to improve the safety and reliability of the battery replacement operation.

[0131] refer to Figure 2~Figure 5 In some embodiments, the lifting mechanism 3 also includes a turntable 33, which is connected to the guide structure 31. The turntable 33 is used by the user to rotate so that the guide structure 31 rotates around its own axis and drives the connecting structure 23 to move vertically relative to the guide structure 31 along the outer periphery of the guide structure 31.

[0132] The turntable 33 includes but is not limited to being arranged on a side opposite to the driving member 32 along the width direction of the base 12. When the driving member 32 is underpowered, the operator can also rotate the turntable 33 to drive the guide structure 31 to rotate, thereby driving the connecting structure 23 to move up and down in the vertical direction, thereby driving the platform 21 to rise and fall.

[0133] In this embodiment, a turntable 33 is provided for the operator to manually adjust the vertical height of the platform 21 , which is helpful for emergency treatment in an emergency situation and can also more accurately adjust the position of the platform 21 according to the height of the battery bracket 62 .

[0134] refer to Figure 2~Figure 5 In some embodiments, the lifting mechanism 3 further includes a pneumatic member, which is power-connected to the turntable 33 and configured to drive the turntable 33 to rotate so that the connecting structure 23 moves vertically.

[0135] An interface for pneumatic parts can be set at the turntable 33, and the pneumatic parts include but are not limited to air guns, so as to provide torque for the turntable 33, which helps to assist the operator to adjust the height of the platform 21 and improve the adjustment efficiency of the lifting height of the platform 21.

[0136] refer to Figure 2~Figure 5 In some embodiments, the connection structure 23 has a plurality of limiting holes 231 spaced apart in the vertical direction. The mounting structure 14 has an elastic member and a limiting member 141 connected to the elastic member, and the limiting member 141 is configured to be inserted into the limiting hole 231 to limit the vertical movement of the platform 21, or to be retracted from the limiting hole 231 as the elastic member is compressed to allow the lifting mechanism 3 to drive the platform 21 to move vertically.

[0137] A group of limiting holes 231 may be respectively provided on both sides of the connection structure 23 along the width direction of the base 12, and each group of limiting holes 231 may include a plurality of limiting holes 231 spaced apart in the vertical direction, and each limiting hole 231 corresponds to a different limiting height. A group of limiting members 141 and elastic members are also correspondingly provided on both sides of the mounting structure 14, respectively cooperating with the limiting holes 231 on the same side. The limiting members 141 include but are not limited to latches, and the elastic members include but are not limited to springs.

[0138] When the connection structure 23 rises relative to the mounting structure 14, the elastic member is compressed to drive the limiting member 141 to disengage from the limiting hole 231, and the lifting mechanism 3 can drive the platform 21 to rise to a specified position. When the platform 21 stops moving, the elastic member rebounds to drive the limiting member 141 to enter the limiting hole 231, thereby locking the height position of the platform 21.

[0139] The limiter 141 limits the downward movement of the connection structure 23, and realizes a one-way limit on the vertical movement of the platform 21, allowing the connection structure 23 to overcome the elastic force of the elastic member and move upward, but it cannot automatically fall. Only when the operator manually removes the limiter 141 from the limit hole 231, the connection structure 23 can be allowed to fall, thereby improving the safety of the height adjustment of the platform 21.

[0140] In this embodiment, by setting the limit hole 231 and the limit member 141, the position of the platform 21 can be locked after the platform 21 is raised to a specified height, thereby reducing the risk of shaking or abnormal falling of the platform 21, which is beneficial to improving the safety and reliability of battery replacement and transportation operations.

[0141] refer to Figure 2~Figure 5 In some embodiments, the vehicle battery replacement device further includes a braking mechanism 4 , which is connected to the base 12 to limit the movement of the walking mechanism 1 .

[0142] A braking hole may be provided at the edge of the base 12 , and the braking mechanism 4 includes but is not limited to a ground brake. The braking mechanism 4 is inserted into the braking hole and contacts the supporting surface to limit the movement of the base 12 , thereby achieving braking of the walking mechanism 1 .

[0143] In this embodiment, by setting a braking mechanism 4, the position of the vehicle battery swapping device can be locked after the vehicle battery swapping device is moved to a specified position, thereby reducing the risk of slippage of the walking mechanism 1 during the battery swapping operation, and helping to improve the reliability and safety of the battery swapping operation.

[0144] refer to Figure 2~Figure 5 In some embodiments, the vehicle battery replacement device also includes a power supply device 51, which is connected to the side of the mounting structure 14 away from the lifting mechanism 3 and is located between the two gripping handles 112, and is configured to supply power to the locking and unlocking mechanism 2.

[0145] The power supply device 51 includes but is not limited to a power distribution cabinet and / or a control cabinet, and may be equipped with a control panel so that the operator can control the working state of the locking and unlocking mechanism 2 through the power supply device 51. A storage battery 52 may also be provided below the power supply device 51 to provide a power source to the locking and unlocking mechanism 2.

[0146] In this embodiment, the power supply device 51 is disposed between the two gripping handles 112 , which is convenient for operators to operate. The operation process will not interfere with the lifting and lowering movement of the platform 21 , and has a high space utilization rate.

[0147] In another aspect of the embodiments of the present disclosure, a battery replacement system is provided, comprising the vehicle battery replacement device according to any of the above embodiments. The battery replacement system using the above vehicle battery replacement device helps to improve the reliability of battery replacement.

[0148] Figure 6is a schematic diagram of battery replacement scenarios according to other embodiments of the vehicle battery replacement device disclosed herein, Figure 7 is a schematic diagram of battery replacement scenarios according to some other embodiments of the vehicle battery replacement device disclosed in the present invention, Figure 8 is a side view of a battery replacement scene according to some embodiments of the vehicle battery replacement device disclosed herein, Fig. 9 is a side view of a battery replacement scene according to some other embodiments of the vehicle battery replacement device disclosed in the present invention, Fig.10 It is a side view of a battery replacement scene according to some other embodiments of the vehicle battery replacement device disclosed in the present invention.

[0149] Figure 4 and Figure 5 The platform 21 of the vehicle battery replacement device is shown in scenes at different height positions. Figure 6 The scene of the vehicle battery replacement device carrying the battery assembly 61 is shown. The vehicle battery replacement device transfers the battery assembly 61 to the bottom of the battery bracket 62. At this time, the battery assembly 61 is not connected to the battery bracket 62. Figure 7 The scene in which the vehicle battery replacement device lifts the battery assembly 61 to a height below the battery bracket 62 where the disassembly and assembly operation can be carried out is shown. Figure 8 The figure shows a scene in which the platform 21 carries the battery assembly 61 at the lowest point. The vehicle battery replacement device can be connected to or placed on the battery assembly 61. Fig. 9 The figure shows a scene where the platform 21 lifts the battery assembly 61 close to the battery bracket 62. Fig.10 It shows the scene where the battery assembly 61 is installed with the battery bracket 62 and the platform 21 falls back to the lowest position.

[0150] In some specific embodiments, Figure 2~Figure 10 As shown, the vehicle battery replacement device is compatible with the transport, installation, removal, and lifting functions of the battery assembly 61, and can quickly remove and install the battery assembly 61 from the battery bracket 62, and transfer it to the placement stand, thereby avoiding the use of a forklift to pick up the battery assembly 61 and causing the battery assembly 61 to be bumped.

[0151] The vehicle battery replacement device can be controlled by a programmable logic controller (PLC), automatically controlling the torque required for locking and unlocking, and quickly locking and unlocking the battery assembly 61. There is no need for people to lie under the vehicle to lock and unlock the locking and unlocking assembly 22, thereby protecting personnel safety.

[0152] The safety locking function is realized by the limiting member 141 and the limiting hole 231 to prevent the platform 21 from descending due to mechanical abnormalities and protect the safety of personnel. The platform 21 can temporarily place the battery assembly 61 to facilitate the storage and maintenance of the battery assembly 61.

[0153] The platform 21 can be controlled to rise and fall in three modes: manual control of the turntable 33, automatic drive control of the driving member 32, or external air gun drive. When the walking mechanism 1 is in place, the brake mechanism 4 is locked to prevent the walking mechanism 1 from slipping.

[0154] The locking and unlocking assembly 22 has its own lifting load-bearing table with an integrated motor drive mechanism, and the intelligent control system controls the motor drive for rapid locking and unlocking. The lifting mechanism 3 is used for the platform 21 that carries the battery assembly 61. It integrates a multifunctional drive device to meet the lifting fork arm function, including a manual mode, and can be connected to an external drive device and a built-in drive device. It has a built-in safety locking function when lifted into place. The walking mechanism 1 has the lifting function of a forklift, and can turn straight and lift the walking mechanism to meet the needs of multi-intersection operation. When the platform 21 is lifted or lowered to any position, it has its own latch locking function to prevent the platform 21 from slipping abnormally. The guide structure 31 adopts a screw mechanism, and the platform 21 cannot automatically descend in a non-rotating state. The transfer trolley uses a lock in place to lock the car to prevent the trolley from slipping.

[0155] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A vehicle battery replacement device, characterized in that: include: A walking mechanism (1) comprising a push-pull assembly (11), a base (12), and a mounting structure (14) arranged on the base (12); the push-pull assembly (11) is used by a user to push and pull the walking mechanism (1) to move, so as to transport a battery assembly (61) of a vehicle (6); a locking and unlocking mechanism (2), arranged on the traveling mechanism (1), used to carry the battery assembly (61) and achieve locking or unlocking of the battery assembly (61) relative to the vehicle (6); and A lifting mechanism (3), arranged on the walking mechanism (1) and connected to the locking and unlocking mechanism (2), configured to drive the locking and unlocking mechanism (2) to rise and fall relative to the walking mechanism (1); The base (12) is arranged below the locking and unlocking mechanism (2), the lifting mechanism (3) is arranged on the mounting structure (14), and the push-pull assembly (11) is arranged on a side of the mounting structure (14) away from the lifting mechanism (3).

2. The vehicle battery replacement device according to claim 1, characterized in that: The walking mechanism (1) further comprises: One or more moving wheels (13) are arranged at the bottom of the base (12).

3. The vehicle battery replacement device according to claim 2, characterized in that: The push-pull assembly (11) comprises: A push-pull rod (111) rotatably connected to the mounting structure (14); There are a plurality of movable wheels (13), and at least one movable wheel (13) among the plurality of movable wheels (13) is connected to an end of the push-pull rod (111) and is configured to rotate with the rotation of the push-pull rod (111).

4. The vehicle battery replacement device according to any one of claims 1 to 3, characterized in that: The push-pull assembly (11) further comprises: Two holding handles (112) are respectively arranged on both sides of the mounting structure (14) along the width direction of the walking mechanism (1).

5. The vehicle battery replacement device according to claim 1, characterized in that: The lifting mechanism (3) comprises: A guide structure (31) connected to the mounting structure (14) and extending in a vertical direction; Wherein, the locking and unlocking mechanism (2) comprises: A platform (21) for carrying a battery assembly (61) to be installed or removed; The connection structure (23) is connected to the platform (21) and sleeved on the outer circumference of the guide structure (31), and is configured to move relative to the guide structure (31) to drive the platform (21) to rise and fall.

6. The vehicle battery replacement device according to claim 5, characterized in that: The lifting mechanism (3) further comprises: The driving member (32) is dynamically connected to the guide structure (31) and is configured to drive the guide structure (31) to rotate around its own axis, so that the connecting structure (23) moves vertically relative to the guide structure (31) along the outer periphery of the guide structure (31).

7. The vehicle battery replacement device according to claim 5, characterized in that: The lifting mechanism (3) further comprises: A rotating disk (33) is connected to the guide structure (31); the rotating disk (33) is used for a user to rotate the guide structure (31) so as to rotate the guide structure (31) around its own axis and drive the connecting structure (23) to move vertically relative to the guide structure (31) along the outer periphery of the guide structure (31).

8. The vehicle battery replacement device according to claim 5, characterized in that: The connection structure (23) has a plurality of limiting holes (231) arranged at intervals along the vertical direction; The mounting structure (14) comprises an elastic member and a limiting member (141) connected to the elastic member, wherein the limiting member (141) is configured to be inserted into the limiting hole (231) to limit the vertical movement of the platform (21), or to be retracted from the limiting hole (231) as the elastic member is compressed to allow the lifting mechanism (3) to drive the platform (21) to move vertically.

9. The vehicle battery replacement device according to claim 1, characterized in that: Also includes: A braking mechanism (4) is connected to the base (12) and is used to limit the movement of the walking mechanism (1).

10. The vehicle battery replacement device according to claim 4, characterized in that: Also includes: A power supply device (51) is connected to a side of the mounting structure (14) away from the lifting mechanism (3) and is located between the two holding handles (112), and is configured to supply power to the locking and unlocking mechanism (2).

11. A battery replacement system, characterized in that: include: A vehicle battery replacement device according to any one of claims 1 to 10.

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