Battery replacement system

Abstract

The utility model discloses a battery replacement system. The battery replacement system provided by the utility model comprises power storage equipment, a carrier and a battery replacement device, wherein the power storage equipment is used for accommodating a battery device; the carrier can move relative to the power storage equipment along a first direction; the battery replacing device is connected with the carrier, the battery replacing device comprises a transfer part, the transfer part comprises a pulley assembly, and the pulley assembly is in contact with the battery device in the state that at least part of the battery device is borne on the transfer part; at least part of the transfer part can move relative to the electricity storage equipment in a second direction perpendicular to the first direction so as to receive the battery device from the electricity storage equipment or convey the battery device to the electricity storage equipment. Through the implementation mode, the carrier and the transfer part are matched with each other to flexibly transfer the battery device in the first direction and the second direction, and meanwhile, the transfer part is in contact with the battery device through the pulley assembly, so that the friction force between the transfer part and the battery device is reduced, and the risk of damage to the battery device is further relieved; and the reliability of the battery replacement system is improved.

Description

Technical Field

[0001] This application relates to the field of energy storage technology, and in particular to a battery swapping system. Background Technology

[0002] Energy conservation and emission reduction are key to sustainable development, which in turn promotes the adjustment of the energy structure and drives the development and application of battery technology. The key to the development of battery technology lies in electrochemical energy storage technology. Due to its advantages such as high energy density, good cycle capability, high operating voltage, environmental friendliness, and low self-discharge, it has been widely used in portable electronics, electric vehicles, and energy storage systems.

[0003] During the use of energy storage devices, it is necessary to transfer and replace the battery devices contained in the energy storage devices. At present, the methods for transferring battery devices are relatively simple, and the risk of damage to the battery devices is high during the transfer. Utility Model Content

[0004] The main objective of this application is to provide a battery swapping system that addresses the aforementioned technical problems in the prior art.

[0005] To address the aforementioned problems, this application provides a battery swapping system, comprising an energy storage device, a carrier, and a battery swapping unit. The energy storage device is used to accommodate a battery device. The carrier is movable relative to the energy storage device along a first direction. The battery swapping unit is connected to the carrier and includes a transfer section. The transfer section includes a pulley assembly, and the pulley assembly contacts the battery device when at least a portion of the battery device is supported by the transfer section. At least a portion of the transfer section is movable relative to the energy storage device in a second direction perpendicular to the first direction to receive the battery device from the energy storage device or to transport the battery device to the energy storage device.

[0006] In some embodiments, the battery swapping device further includes a slide rail extending in a second direction, the slide rail being connected to a carrier and a transfer unit respectively, and the transfer unit being movable along the slide rail in the second direction.

[0007] In some embodiments, the transfer portion includes a first support portion and a second support portion, which are spaced apart in a first direction. When the battery device is at least partially supported by the transfer portion, the first support portion and the second support portion respectively contact the battery device.

[0008] In some embodiments, the pulley assembly includes a pulley disposed between the first support portion and the second support portion, and connected to the first support portion and the second support portion respectively. The pulley assembly contacts the battery device through the pulley.

[0009] In some embodiments, the number of pulleys is multiple, and the multiple pulleys are arranged sequentially along the second direction.

[0010] In some embodiments, the slide includes a first track and a second track spaced apart in a first direction, a first support portion connected to the first track and capable of moving along the first track in a second direction, and a second support portion connected to the second track and capable of moving along the second track in a second direction.

[0011] In some embodiments, the battery device includes a battery pack and a support base plate, the battery pack being supported on the support base plate, and a receiving groove extending in a first direction being formed on the side of the support base plate facing the transfer portion, the transfer portion being at least partially received in the receiving groove.

[0012] In some embodiments, the supporting base plate is provided with a plurality of reinforcing ribs, which are arranged along a first direction and a second direction.

[0013] In some embodiments, the battery swapping device further includes a fixing post, a first positioning hole penetrating the opposite sides of the bearing base plate, and a second positioning hole on the transfer part. When the battery device is in a fixed position, the first positioning hole and the second positioning hole are connected, and the fixing post is inserted into the first positioning hole and the second positioning hole to fix the battery device and the transfer part relative to each other.

[0014] In some embodiments, a first positioning hole is provided at one end of the bearing base plate near the carrier, and a second positioning hole is provided at one end of the transfer part near the carrier.

[0015] Compared with existing technologies, the battery swapping system provided in this application includes an energy storage device, a carrier, and a battery swapping unit. The energy storage device is used to house a battery device; the carrier is movable relative to the energy storage device in a first direction; the battery swapping unit is connected to the carrier and includes a transfer section. The transfer section includes a pulley assembly, and the pulley assembly contacts the battery device when at least part of the battery device is supported by the transfer section; at least part of the transfer section is movable relative to the energy storage device in a second direction perpendicular to the first direction to receive the battery device from the energy storage device or to transport the battery device to the energy storage device. Through the above embodiments, the carrier and the transfer section cooperate to flexibly transfer the battery device in the first and second directions. At the same time, the transfer section contacts the battery device through the pulley assembly, reducing the friction between the transfer section and the battery device, further mitigating the risk of battery device damage, and improving the reliability of the battery swapping system. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1This is a schematic diagram of the structure of a battery swapping system according to one or more embodiments of this application;

[0018] Figure 2 This is a schematic diagram of the structure of a battery swapping device in a battery swapping system according to one or more embodiments of this application;

[0019] Figure 3 This is a first structural schematic diagram of a battery device mounted on a battery swapping device in a battery swapping system according to one or more embodiments of this application;

[0020] Figure 4 This is a second structural schematic diagram of a battery device mounted on a battery swapping device in a battery swapping system according to one or more embodiments of this application;

[0021] Figure 5 This is a first-view schematic diagram of the support base plate of a battery swapping system according to one or more embodiments of this application;

[0022] Figure 6 This is a second-view schematic diagram of the support base plate of a battery swapping system according to one or more embodiments of this application.

[0023] Reference numerals: 1. Battery swapping system; 10. Energy storage device; 20. Battery device; 21. Battery pack; 22. Support base plate; 221. Receiving groove; 222. Reinforcing rib; 223. First positioning hole; 30. Carrier; 40. Battery swapping device; 41. Transfer part; 411. Pulley assembly; 4111. Pulley; 412. First support part; 413. Second support part; 42. Slide; 421. First track; 422. Second track; 43. Second positioning hole; 50. Fixing column; 50. First direction x1; Second direction x2. Detailed Implementation

[0024] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0026] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0027] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0028] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0029] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0030] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0031] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0032] Energy conservation and emission reduction are key to sustainable development, which in turn promotes the adjustment of the energy structure and drives the development and application of battery technology. The key to the development of battery technology lies in electrochemical energy storage technology. Due to its advantages such as high energy density, good cycle capability, high operating voltage, environmental friendliness, and low self-discharge, it has been widely used in portable electronics, electric vehicles, and energy storage systems.

[0033] During the use of energy storage devices, it is necessary to transfer and replace the battery devices contained in the energy storage devices. At present, the methods for transferring battery devices are relatively simple, and the risk of damage to the battery devices is high during the transfer.

[0034] Combination Figures 1-6 As shown, Figure 1 This is a schematic diagram of the structure of a battery swapping system according to one or more embodiments of this application; Figure 2 This is a schematic diagram of the structure of a battery swapping device in a battery swapping system according to one or more embodiments of this application; Figure 3 This is a first structural schematic diagram of a battery device mounted on a battery swapping device in a battery swapping system according to one or more embodiments of this application; Figure 4 This is a second structural schematic diagram of a battery device mounted on a battery swapping device in a battery swapping system according to one or more embodiments of this application; Figure 5 This is a first-view schematic diagram of the support base plate of a battery swapping system according to one or more embodiments of this application; Figure 6 This is a second-view schematic diagram of the support base plate of a battery swapping system according to one or more embodiments of this application.

[0035] To address the aforementioned problems, this application provides a battery swapping system 1, which includes an energy storage device 10, a carrier 30, and a battery swapping unit 40. The energy storage device 10 is used to accommodate a battery device 20. The carrier 30 is movable relative to the energy storage device 10 along a first direction x1. The battery swapping unit 40 is connected to the carrier 30 and includes a transfer section 41. The transfer section 41 includes a pulley assembly 411. When the battery device 20 is at least partially supported by the transfer section 41, the pulley assembly 411 contacts the battery device 20. At least part of the transfer section 41 is movable relative to the energy storage device 10 in a second direction x2 perpendicular to the first direction x1 to receive the battery device 20 from the energy storage device 10 or to transport the battery device 20 to the energy storage device 10.

[0036] The energy storage device 10 may include, but is not limited to, energy storage cabinets, energy storage containers, etc. The energy storage device 10 is used to house the battery device 20. In some embodiments, the battery device 20 may include a housing and individual battery cells, with the individual battery cells housed within the housing. The housing provides space for the individual battery cells and may have various structures. In some embodiments, the housing may include a first portion and a second portion, which overlap each other, together defining a space for housing the individual battery cells. The second portion may be a hollow structure with one open end, and the first portion may be a plate-like structure, with the first portion covering the open side of the second portion so that the first and second portions together define the space; alternatively, both the first and second portions may be hollow structures with one open side, with the open side of the first portion covering the open side of the second portion.

[0037] The carrier 30 can move relative to the energy storage device 10 along a first direction x1. The carrier 30 may include, but is not limited to, a vehicle, including, but not limited to, a forklift, etc. The transfer unit 41 is used to contact and carry the battery device 20, thereby transferring the battery device 20. With the battery device 20 at least partially carried by the transfer unit 41, the pulley assembly 411 contacts the battery device 20. It is understood that at least part of the transfer unit 41 can move relative to the energy storage device 10 in a second direction x2 perpendicular to the first direction x1. During the movement of the transfer unit 41 relative to the energy storage device 10, for example, as the transfer unit 41 moves closer to or away from the energy storage device 10, the pulley assembly 411 can contact the battery device 20 and rotate, causing rolling friction between the transfer unit 41 and the battery device 20. Compared to the transfer unit 41 only directly sliding against the battery device 20, the pulley assembly 411 reduces the friction between the transfer unit 41 and the battery device 20, mitigating the risk of damage to the battery device 20 during the transfer process.

[0038] Through the above embodiments, the carrier 30 and the transfer unit 41 cooperate to flexibly transfer the battery device 20 in the first direction x1 and the second direction x2. At the same time, the transfer unit 41 contacts the battery device 20 through the pulley assembly 411, which reduces the friction between the transfer unit 41 and the battery device 20, further alleviates the risk of damage to the battery device 20, and improves the reliability of the battery swapping system 1.

[0039] In some application scenarios, the vehicle 30 is a vehicle, and the vehicle's forward direction is along its length. The vehicle's dimensions in the length direction are larger than its dimensions in the width direction. The vehicle's forward direction is consistent with the first direction x1. It can be understood that, compared to aligning the vehicle's forward direction with the second direction x2 and directly receiving or supplying the battery device 20 to the energy storage device 10, aligning the vehicle's forward direction with the first direction x1 and cooperating with the transfer unit 41 can save the overall space occupied by the vehicle 30 and the battery swapping device 40 in the second direction x2, while improving the battery swapping flexibility in both directions. Furthermore, in some application scenarios, the battery swapping system 1 includes multiple energy storage devices 10 arranged in the second direction x2. The spacing between two adjacent energy storage devices 10 is greater than the width of the vehicle and greater than the size of the battery device 20 in the second direction x2, but less than the sum of the length of the vehicle and the size of the battery device 20 in the second direction x2.

[0040] In some embodiments, the battery swapping device 40 further includes a slide 42 extending in a second direction x2. The slide 42 is connected to the carrier 30 and the transfer unit 41, respectively. The transfer unit 41 is movable along the second direction x2 on the slide 42. The slide 42 may be, but is not limited to, a slide rail, a lead screw, a conveyor belt, a conveyor chain, etc. The transfer unit 41 may be driven by a drive member, which may include, but is not limited to, an electric motor, a cylinder, and a hydraulic drive member, etc. Exemplarily, during the process of the transfer unit 41 receiving the battery device 20 from the energy storage device 10, the transfer unit 41 may move along the second direction x2 towards the energy storage device 10 on the slide 42, thereby approaching the battery device 20. After fully carrying the battery device 20, the transfer unit 41 may move away from the energy storage device 10 along the second direction x2 on the slide 42, thereby moving the battery device 20 away from the energy storage device 10. The slide rail 42 is connected to the carrier 30, facilitating the flexible movement of the transfer unit 41 relative to the energy storage device 10 in the first direction x1 and the second direction x2, thereby improving the battery swapping flexibility of the battery swapping system 1. In some application scenarios, the number of transfer units 41 and slide rails 42 can be one, two, or more. For example, the number of transfer units 41 and slide rails 42 can both be two, with two slide rails 42 spaced apart in the first direction x1, and one transfer unit 41 corresponding to one slide rail 42, thereby improving the stability of the battery swapping device 40 carrying the battery device 20.

[0041] In some embodiments, the transfer unit 41 includes a first support portion 412 and a second support portion 413, which are spaced apart in a first direction x1. When the battery device 20 is at least partially supported by the transfer unit 41, the first support portion 412 and the second support portion 413 are in contact with the battery device 20. The first support portion 412 and the second support portion 413 are used to support the battery device 20. For example, when the battery device 20 is at least partially supported by the transfer unit 41, the first support portion 412, the second support portion 413, and the pulley assembly 411 are in contact with the battery device 20, thereby enabling the first support portion 412 and the second support portion 413 to support the battery device 20 in conjunction with the pulley assembly 411, further improving the stability of the battery swapping device 40 in supporting the battery device 20 and reducing the risk of damage to the battery device 20 during the transfer process.

[0042] In some embodiments, the pulley assembly 411 includes a pulley 4111, which is disposed between the first support portion 412 and the second support portion 413, and is connected to both the first support portion 412 and the second support portion 413. The pulley assembly 411 contacts the battery device 20 via the pulley 4111. It is understood that during the contact between the pulley 4111 and the battery device 20, and as the transfer portion 41 moves relative to the energy storage device 10 in the second direction x2, the pulley 4111 can rotate around its own axis, thereby reducing friction between the transfer portion 41 and the battery device 20 and mitigating the risk of damage to the battery device 20 during transfer. Furthermore, the placement of the pulley 4111 between the first support portion 412 and the second support portion 413 improves the stability of the battery device 20 simultaneously supported by the first support portion 412, the second support portion 413, and the pulley 4111.

[0043] In some embodiments, there are multiple pulleys 4111, which are arranged sequentially along the second direction x2. Thus, the multiple pulleys 4111 arranged sequentially along the second direction x2 greatly reduce the friction between the transfer part 41 and the battery device 20 during the transfer process. At the same time, the multiple pulleys 4111 improve the load-bearing stability of the pulley assembly 411 on the battery device 20, further reducing the risk of damage to the battery device 20.

[0044] In some embodiments, the slide 42 includes a first track 421 and a second track 422 spaced apart in a first direction x1. A first support portion 412 is connected to the first track 421 and is movable along the second direction x2 on the first track 421. A second support portion 413 is connected to the second track 422 and is movable along the second direction x2 on the second track 422. The first track 421 and the second track 422 may be, but are not limited to, slide rails, lead screws, conveyor belts, conveyor chains, etc. The first support portion 412 and the second support portion 413 may be driven by a driving member, which may include, but is not limited to, electric motors, cylinders, and hydraulic driving members, etc. For example, during the process of the transfer unit 41 receiving the battery device 20 from the energy storage device 10, the first support unit 412 can move towards the energy storage device 10 along the second direction x2 on the first track 421, and the second support unit 413 can move towards the energy storage device 10 along the second direction x2 on the second track 422. After fully supporting the battery device 20, the first support unit 412 can move away from the energy storage device 10 along the second direction x2 on the first track 421, and the second support unit 413 can move away from the energy storage device 10 along the second direction x2 on the second track 422, thereby driving the battery device 20 away from the energy storage device 10. The first support unit 412 and the second support unit 413 can move synchronously on the first track 421 and the second support unit 413 on the second track 422.

[0045] In some embodiments, the battery device 20 includes a battery pack 21 and a support base plate 22. The battery pack 21 is supported on the support base plate 22. The support base plate 22 has a receiving groove 221 extending in a first direction x1 on the side facing the transfer portion 41. The transfer portion 41 is at least partially received in the receiving groove 221. The battery pack 21 may contain one or more individual battery cells. The battery device 20 can contact the transfer portion 41 through the support base plate 22. Exemplarily, during the process of the transfer portion 41 receiving the battery device 20 from the energy storage device 10, the transfer portion 41 moves toward the energy storage device 10 in a second direction x2 and gradually enters the receiving groove 221. When the battery device 20 is fully supported by the transfer portion 41, the transfer portion 41 directly contacts the support base plate 22 through the receiving groove 221 and indirectly supports the battery pack 21. Therefore, the support base plate 22 provides better support and protection for the battery pack 21, mitigating the risk of battery damage. At the same time, the receiving groove 221 on the support base plate 22 can improve the connection stability between the transfer section 41 and the battery device 20.

[0046] In some embodiments, the supporting base plate 22 is provided with a plurality of reinforcing ribs 222, which are arranged along a first direction x1 and a second direction x2. Thus, by providing a plurality of reinforcing ribs 222 on the supporting base plate 22, and with the reinforcing ribs 222 arranged along the first direction x1 and the second direction x2, the strength of the supporting base plate 22 is improved, facilitating better support and protection for the battery pack 21 and mitigating the risk of damage to the battery pack 21.

[0047] In some embodiments, the battery swapping device 40 further includes a fixing post 50. A first positioning hole 223 penetrating the opposing surfaces of the supporting base plate 22 is provided on the supporting base plate 22, and a second positioning hole 43 is provided on the transfer part 41. When the battery device 20 is in a fixed position, the first positioning hole 223 communicates with the second positioning hole 43. The fixing post 50 is inserted into the first positioning hole 223 and the second positioning hole 43 to fix the battery device 20 relative to the transfer part 41. The fixing post can include, but is not limited to, bolts, screws, pins, etc. The battery device 20 being in a fixed position means that the battery device 20 is completely supported on the transfer part 41, and the relative position of the transfer part 41 and the battery device 20 remains fixed. When the battery device 20 is in a fixed position, the transfer part 41 can drive the battery device 20 to move in the second direction x2. For example, during the process of the transfer unit 41 receiving the battery device 20 from the energy storage device 10, the transfer unit 41 approaches the battery device 20 along the second direction x2. When the relative position of the transfer unit 41 and the battery position makes the battery device 20 fixed, the first positioning hole 223 communicates with the second positioning hole 43, thereby facilitating the insertion of the fixing post 50 into the first positioning hole 223 and the second positioning hole 43, thereby improving the connection stability between the battery device 20 and the transfer unit 41 and mitigating the risk of damage caused by the battery device 20 shifting during the transfer process driven by the transfer unit 41.

[0048] In some embodiments, a first positioning hole 223 is provided at one end of the support base plate 22 near the carrier 30, and a second positioning hole 43 is provided at one end of the transfer part 41 near the carrier 30. Thus, by providing the first positioning hole 223 and the second positioning hole 43 at the ends of the support base plate 22 and the transfer part 41 near the carrier 30, respectively, it is convenient for the operator to insert the fixing post 50 into the first positioning hole 223 and the second positioning hole 43 when the battery device 20 is in a fixed position.

[0049] In summary, the battery swapping system 1 provided in this application includes an energy storage device 10, a carrier 30, and a battery swapping device 40. The energy storage device 10 is used to accommodate a battery device 20. The carrier 30 is movable relative to the energy storage device 10 along a first direction x1. The battery swapping device 40 is connected to the carrier 30 and includes a transfer section 41. The transfer section 41 includes a pulley assembly 411. When the battery device 20 is at least partially supported by the transfer section 41, the pulley assembly 411 contacts the battery device 20. At least part of the transfer section 41 is movable relative to the energy storage device 10 in a second direction x2 perpendicular to the first direction x1 to receive the battery device 20 from the energy storage device 10 or to transport the battery device 20 to the energy storage device 10. Through the above embodiments, the carrier 30 and the transfer unit 41 cooperate to flexibly transfer the battery device 20 in the first direction x1 and the second direction x2. At the same time, the transfer unit 41 contacts the battery device 20 through the pulley assembly 411, which reduces the friction between the transfer unit 41 and the battery device 20, further alleviates the risk of damage to the battery device 20, and improves the reliability of the battery swapping system 1.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A battery replacement system, characterized by, The battery replacing system comprises: a power storage device for accommodating a battery device; a carrier capable of moving relative to the power storage device along a first direction; a battery replacing device connected with the carrier, the battery replacing device comprising a transfer part, the transfer part comprising a pulley assembly, the pulley assembly being in contact with the battery device in a state that the battery device is at least partially carried by the transfer part; at least part of the transfer part being capable of moving relative to the power storage device along a second direction perpendicular to the first direction, so as to receive the battery device from the power storage device or deliver the battery device to the power storage device.

2. The battery replacement system of claim 1, wherein, The battery replacing device further comprises a slide way extending along the second direction, the slide way being connected with the carrier and the transfer part respectively, and the transfer part being capable of moving along the second direction on the slide way.

3. The battery replacement system according to claim 2, characterized in that, The transfer part comprises a first carrying part and a second carrying part, the first carrying part and the second carrying part being arranged in a spaced manner along the first direction, and the first carrying part and the second carrying part being in contact with the battery device respectively in a state that the battery device is at least partially carried by the transfer part.

4. The battery replacement system according to claim 3, characterized in that, The pulley assembly comprises a pulley arranged between the first carrying part and the second carrying part and connected with the first carrying part and the second carrying part respectively, and the pulley assembly being in contact with the battery device through the pulley.

5. The battery replacement system according to claim 4, characterized in that, The number of the pulleys is multiple, and the multiple pulleys are arranged in sequence along the second direction.

6. The battery replacement system according to claim 3, characterized in that, The slide way comprises a first track and a second track arranged in a spaced manner along the first direction, the first carrying part being connected with the first track and capable of moving along the second direction on the first track, and the second carrying part being connected with the second track and capable of moving along the second direction on the second track.

7. The battery replacement system of claim 1, wherein, The battery device comprises a battery pack and a carrying bottom plate, the battery pack being carried by the carrying bottom plate, and one side of the carrying bottom plate facing the transfer part being formed with an accommodating groove extending along the first direction, and the transfer part being at least partially accommodated in the accommodating groove.

8. The battery replacement system according to claim 7, characterized in that, The carrying bottom plate is provided with multiple reinforcing ribs arranged along the first direction and the second direction.

9. The battery replacement system according to claim 7, characterized in that, The battery replacing device further comprises a fixing column, the carrying bottom plate is provided with a first positioning hole penetrating through opposite surfaces of the carrying bottom plate, the transfer part is provided with a second positioning hole, the first positioning hole and the second positioning hole being in communication in a state that the battery device is in a fixed position, and the fixing column being inserted into the first positioning hole and the second positioning hole, so as to relatively fix the battery device and the transfer part.

10. The battery replacement system of claim 9, wherein, The first positioning hole is arranged at one end of the carrying bottom plate close to the carrier, and the second positioning hole is arranged at one end of the transfer part close to the carrier.

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