Bottom assembly and battery swap station comprising same

Abstract

The application discloses a bottom assembly and a battery swap station comprising the same. The bottom assembly comprises: a first guide module, which is used for providing a movement area for a battery swap trolley and guiding the movement of the battery swap trolley; two support modules, which are oppositely arranged on two sides of the first guide module along a first direction and are used for supporting a charging rack; and two positioning modules, which are oppositely arranged on two sides of the first guide module along a second direction different from the first direction and are used for positioning an electric vehicle. The two support modules and the two positioning modules are respectively spliced to the first guide module. The bottom assembly is assembled by the modules including the first guide module, the two support modules and the two positioning modules. The modules can be assembled simultaneously, and then the assembled modules are spliced together, so that the forming efficiency of the bottom assembly is relatively high. The modules have independence, and when a part of the bottom assembly is faulty or damaged, only the damaged part needs to be replaced, and the bottom assembly of the whole battery swap station does not need to be replaced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of battery replacement of electric vehicles, in particular to a bottom assembly and a battery replacement station comprising the same. BACKGROUND

[0002] The battery replacement station is used for replacing batteries of electric vehicles. After the electric vehicle is reliably positioned in the battery replacement station, the battery replacement equipment replaces the batteries of the electric vehicle. Specifically, the battery replacement trolley takes the batteries to be replaced on the electric vehicle and places them on the stacker, and then the stacker transports the batteries to be replaced to the charging rack. The stacker takes the new batteries charged on the charging rack and places them on the battery replacement trolley, and then the battery replacement trolley transports the new batteries to the predetermined position and mounts them on the electric vehicle.

[0003] In the existing battery replacement station, the bottom frame is installed as a whole, which results in low installation efficiency and is not easy to disassemble. Once a part fails or is damaged, the bottom frame has to be replaced as a whole, which is extremely inconvenient and is not conducive to cost control. The application file with the publication number CN110001601A discloses a positioning and lifting system for a battery replacement platform, a battery replacement platform and a charging and battery replacement station. The positioning and lifting system as the bottom structure of the battery replacement station has a whole frame. Each component can only be installed on the whole frame one by one during installation, which makes the installation inconvenient and inefficient. Moreover, if the whole frame is damaged, the entire positioning and lifting system has to be replaced, which wastes time and is costly. SUMMARY

[0004] The technical problem to be solved by the present application is to overcome the above-mentioned defects in the prior art and provide a bottom assembly and a battery replacement station comprising the same.

[0005] The present application solves the above-mentioned technical problems by the following technical solutions:

[0006] A bottom assembly for a battery replacement station, comprising:

[0007] A first guide module for providing a movement area for a battery replacement trolley and guiding the movement of the battery replacement trolley;

[0008] Two support modules oppositely arranged on both sides of the first guide module along a first direction and used for supporting a charging rack;

[0009] Two positioning modules oppositely arranged on both sides of the first guide module along a second direction different from the first direction and used for positioning an electric vehicle;

[0010] Among them, the two support modules and the two positioning modules are respectively spliced to the first guide module.

[0011] In the scheme, the bottom assembly is assembled by the above-mentioned modules (including the first guide module, the two support modules and the two positioning modules). The modules can be assembled simultaneously, and then the assembled modules are assembled together, so that the forming efficiency of the bottom assembly is higher. Meanwhile, due to the independence of the modules, when part of the bottom assembly fails or is damaged, only the damaged part needs to be replaced, for example, when one of the positioning modules fails, only the failed positioning module needs to be replaced, without replacing the entire bottom assembly of the battery swap station.

[0012] Preferably, the first guide module comprises at least two first rails extending in parallel along the first direction.

[0013] In the scheme, the first rails are used to guide the movement of the battery swap trolley, which is conducive to ensuring the reliability of the travel and operation of the battery swap trolley.

[0014] Preferably, the first guide module comprises a guide frame composed of at least two first cross beams extending along the first direction and at least two first longitudinal beams extending along the second direction, and at least two first rails are respectively arranged on the guide frame.

[0015] In the scheme, the first guide module has a simple structure. The first rails are arranged on the first cross beams without occupying additional space to lay the first rails, which is conducive to reducing the space occupied by the first guide module, and further conducive to reducing the space occupied by the bottom assembly, thereby improving the space utilization.

[0016] Preferably, the first guide module has a middle region between the two first cross beams and / or the two first longitudinal beams, and the middle region is provided with a panel.

[0017] In the scheme, the middle region of the bottom assembly is sealed by the panel to prevent the influence of the external environment, such as preventing rodents. In addition, the panel can also provide an area for walking when needed to facilitate the maintenance or operation of the operator.

[0018] Preferably, the panel of the middle region is provided with a foamed filler below.

[0019] In the scheme, the foamed filler can further seal the panel to prevent water, which is conducive to improving the safety and durability of the bottom assembly.

[0020] Preferably, the two positioning modules are respectively a front positioning module located at the front side of the first guide module and a rear positioning module located at the rear side of the first guide module. The front positioning module comprises a front lifting platform and a front lifting mechanism, and the front lifting mechanism is used to drive the front lifting platform to lift. The rear positioning module comprises a rear lifting platform and a rear lifting mechanism, and the rear lifting mechanism is used to drive the rear lifting platform to lift.

[0021] In the scheme, the lifting platform can be lifted according to actual needs under the action of the lifting mechanism, so that the electric vehicle is lifted, and reliable battery replacement of the electric vehicle is facilitated.

[0022] Preferably, the front positioning module further comprises first side front wheel alignment devices and second side front wheel alignment devices arranged on the front lifting platform, and / or the rear positioning module further comprises first side rear wheel alignment devices and second side rear wheel alignment devices arranged on the rear lifting platform.

[0023] In the scheme, the front wheels and the rear wheels of the electric vehicle can be positioned more reliably through the first side front wheel alignment devices, the first side rear wheel alignment devices, the second side front wheel alignment devices and the second side rear wheel alignment devices, so that reliable battery replacement of the electric vehicle is facilitated.

[0024] Preferably, the first side front wheel alignment devices, the second side front wheel alignment devices, and / or the first side rear wheel alignment devices, the second side rear wheel alignment devices are movably arranged on the front positioning module and / or the rear positioning module along the first direction and / or the second direction.

[0025] In the scheme, the distance between the corresponding positioning devices can be adjusted according to actual needs by using the above structure, so that different vehicle models can be adapted.

[0026] Preferably, the bottom assembly further comprises at least one expansion module, which is detachably arranged between the first guide module and at least one of the positioning modules.

[0027] In the scheme, when the expansion module is arranged between the first guide module and the positioning module, the distance between the front wheel alignment devices and the rear wheel alignment devices can be increased, and the battery replacement of the electric vehicle with a longer length can be adapted. Therefore, by using the above structure, the battery replacement of different vehicle models can be adapted.

[0028] Preferably, a plurality of first positioning portions are arranged at positions of the first guide module for splicing with the two support modules and the two positioning modules, and corresponding positions of the two support modules and the two positioning modules are provided with second positioning portions matched with the first positioning portions.

[0029] In the scheme, the positions of splicing of each module are provided with corresponding positioning portions, so that the splicing of each module is more convenient and reliable.

[0030] Preferably, the first positioning portion comprises a first positioning plate, the second positioning portion comprises a second positioning plate matched with the first positioning plate, and the first positioning plate and the second positioning plate are detachably connected through a flange.

[0031] In the scheme, the above structure is adopted, which is beneficial to rapid and reliable assembly and disassembly.

[0032] Preferably, the first positioning plate is further provided with a guide block, and the second positioning plate is provided with a positioning groove matched with the guide block.

[0033] In the scheme, the positioning block and the positioning groove are matched, which is beneficial to more accurate positioning.

[0034] Preferably, the first track at least partially extends into the support module.

[0035] In the scheme, the above structure is adopted, so that the battery replacement trolley can work with the battery transfer device in the battery storage area, and rapid and reliable battery replacement can be realized.

[0036] Preferably, the support module is a frame structure, which includes at least two second cross beams extending in the first direction and at least two second longitudinal beams extending in the second direction, and the frame structure is further provided with a vertically arranged charging rack.

[0037] In the scheme, the structure of the support module is relatively simple, which is beneficial to rapid molding, and the charging rack can be carried to store the battery pack.

[0038] Preferably, the charging rack has a stand column arranged on the frame structure, the stand column also serves as a guide column of the battery transfer device, and a guide surface is arranged on the stand column to guide the battery transfer device to move up and down along the stand column.

[0039] In the scheme, the stand column of the charging rack also serves as the guide column of the battery transfer device, so that the battery transfer device moves up and down along the stand column. Compared with the scheme of using a stacking machine to realize the transfer of the battery pack, the track for the stacking machine is saved, and the demand for height space is reduced. At the same time, since the stand column of the charging rack is reused, the guide column required for the lifting movement of the battery transfer device does not need to be additionally arranged, and the demand for horizontal space is reduced.

[0040] Preferably, the second guide module is arranged on the second guide module.

[0041] In the scheme, the second guide module provides a movement area for the battery transfer device, so that the battery transfer device walks, which is convenient for transferring the battery.

[0042] Preferably, each of the second guiding modules comprises a second track arranged along the second direction.

[0043] In this solution, the second track is used for the operation of the battery transfer device, which is conducive to ensuring the reliability of the travel and operation of the battery transfer device.

[0044] Preferably, the support module is configured by at least two second cross beams extending along the first direction and at least two second longitudinal beams extending along the second direction, wherein the second tracks are arranged on the second longitudinal beams respectively.

[0045] In this solution, the support module has a simple structure and is convenient for rapid molding. The second track is arranged on the second longitudinal beam without occupying additional space for laying the second track, which is conducive to reducing the space occupied by the second guiding module and further reducing the space occupied by the bottom assembly.

[0046] The application also provides a battery swap station comprising the above-mentioned bottom assembly.

[0047] On the basis of common sense in the art, the above-mentioned preferred conditions can be combined arbitrarily, i.e., to obtain each preferred embodiment of the application.

[0048] The positive progress effect of the application is that:

[0049] The bottom assembly is assembled by each module comprising the first guiding module, two support modules and two positioning modules. Each module can be assembled simultaneously, and then the assembled modules are assembled together, so that the molding efficiency of the bottom assembly is high. Correspondingly, the assembly efficiency of the battery swap station comprising the bottom assembly is also high. At the same time, since each module has independence, when part of the bottom assembly fails or is damaged, only the damaged part needs to be replaced, for example, when one of the positioning modules fails, only the failed positioning module needs to be replaced, without the need to replace the entire chassis of the battery swap station, which is conducive to reducing the overall cost of the battery swap station. BRIEF DESCRIPTION OF DRAWINGS

[0050] Figure 1 FIG. 1 is a structural schematic view of a bottom assembly of a preferred embodiment of the application.

[0051] Figure 2 FIG. 2 is a partial structural schematic view of the bottom assembly of the preferred embodiment of the application, which shows the first guiding module and the extension module.

[0052] Figure 3 FIG. 3 is another partial structural schematic view of the bottom assembly of the preferred embodiment of the application.

[0053] Figure 4 FIG. 4 is an enlarged structural schematic view of part A in FIG. 3. Figure 2 FIG. 4 is an enlarged structural schematic view of part A in FIG. 3.

[0054] Figure 5 Structure diagram of the positioning module in the bottom assembly of a preferred embodiment of the present application.

[0055] Figure 6 Structure diagram of the positioning module in the bottom assembly of a preferred embodiment of the present application. Figure 5 Structure diagram of the positioning module in the bottom assembly of a preferred embodiment of the present application.

[0056] Figure 7 Structure diagram of the positioning module in the bottom assembly of a preferred embodiment of the present application.

[0057] Figure 8 Structure diagram of the positioning module in the bottom assembly of a preferred embodiment of the present application.

[0058] Figure 9 Structure diagram of the positioning module in the bottom assembly of a preferred embodiment of the present application.

[0059] Figure 10 Structure diagram of the positioning module in the bottom assembly of a preferred embodiment of the present application.

[0060] Figure 11 Structure diagram of the positioning module in the bottom assembly of a preferred embodiment of the present application.

[0061] BRIEF DESCRIPTION OF THE DRAWINGS

[0062] 100 bottom assembly

[0063] 10 first guiding module

[0064] 101 first track

[0065] 102 guiding frame

[0066] 103 first cross beam

[0067] 104 first longitudinal beam

[0068] 106 panel

[0069] 107 first positioning part

[0070] 108 first positioning plate

[0071] 109 guiding block

[0072] 20 supporting module

[0073] 201 second positioning part

[0074] 202 second positioning plate

[0075] 203 positioning groove

[0076] 204 second cross beam

[0077] 205 Second Longitudinal Beam

[0078] 30 positioning modules

[0079] 301 Front Positioning Module

[0080] 302 rear positioning module

[0081] 303 front lifting platform

[0082] 304 pre-drilled holes

[0083] 305 front positioning agency

[0084] 40 expansion modules

[0085] 200 charging stand

[0086] 2001 Column

[0087] 400 battery transfer device

[0088] 4001 Battery Picking and Placing Mechanism

[0089] 4002 Guiding Mechanism

[0090] 4003 Transmission Mechanism

[0091] 4004 gear

[0092] 4005 rack Detailed Implementation

[0093] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments.

[0094] like Figures 1-11 As shown, this embodiment discloses a bottom component 100 and a battery swapping station including the bottom component 100. The bottom component 100 includes a first guide module 10, two support modules 20, and two positioning modules 30. The first guide module 10 is used to provide a movement area for the battery swapping trolley and to guide the movement of the battery swapping trolley.

[0095] Two support modules 20 are disposed opposite to each other on both sides of the first guide module 10 along a first direction and are used to support the charging rack 200. Two positioning modules 30 are disposed opposite to each other on both sides of the first guide module 10 along a second direction different from the first direction and are used to position the electric vehicle. The two support modules 20 and the two positioning modules 30 are respectively spliced ​​to the first guide module 10. In one embodiment, the first direction and the second direction are perpendicular.

[0096] In the embodiment, the bottom assembly 100 is assembled by the above-mentioned modules (including the first guide module 10, the two support modules 20 and the two positioning modules 30). Each module can be assembled at the same time, and then the assembled modules are assembled together, so that the forming efficiency of the bottom assembly 100 is high. At the same time, since each module has independence, when part of the bottom assembly 100 fails or is damaged, only the damaged part needs to be replaced, for example, if one of the positioning modules 30 fails, only the failed positioning module 30 needs to be replaced, without replacing the entire bottom assembly of the battery swap station, which is helpful to reduce the overall cost of the battery swap station.

[0097] It should be noted that the battery swap trolley is used to transfer the battery between the electric vehicle and the battery transfer device 400 (such as a stacker crane or a lift), and the battery transfer device 400 is used to transfer the battery between the charging rack 200 and the battery swap trolley.

[0098] In an optional embodiment, as shown in Figures 1-4 The first guide module 10 includes at least two first rails 101 extending in parallel in the first direction. The first rails 101 are used to guide the movement of the battery swap trolley, which is helpful to ensure the reliability of the travel and operation of the battery swap trolley.

[0099] In another optional embodiment, the first guide module 10 includes a guide frame 102 composed of at least two first cross beams 103 extending in the first direction and at least two first longitudinal beams 104 extending in the second direction, and the at least two first rails 101 are respectively arranged on the guide frame 102.

[0100] The first guide module 10 has a simple structure, and the first rails 101 are arranged on the first cross beams 103 without occupying additional space to lay the first rails 101, which is helpful to reduce the space occupied by the first guide module 10, and further to reduce the space occupied by the bottom assembly 100, thereby improving the space utilization.

[0101] In another optional embodiment, the first guide module 10 has a middle region between the two first cross beams 103 and / or the two first longitudinal beams 104, and the middle region is provided with a panel 106.

[0102] The middle region of the bottom assembly 100 is sealed by the panel 106 to prevent the influence of the external environment, such as preventing rodents. In addition, the panel 106 can also provide an area for walking when needed, so as to facilitate the maintenance or operation of the operator.

[0103] In addition, it should be noted that the panel 106 can be a whole plate or a plurality of sub-plate pieces spliced together.

[0104] In another optional embodiment, the middle region of the panel 106 is provided with a foamed filler (not shown in the figure).

[0105] The foamed filler can further seal the panel 106, thereby preventing water from entering and improving the safety and durability of the bottom assembly.

[0106] As shown in Figure 1 and Figure 7 In another optional embodiment, the two positioning modules 30 are respectively a front positioning module 301 located at the front side of the first guide module 10 and a rear positioning module 302 located at the rear side of the first guide module 10. The front positioning module 301 includes a front lifting platform 303 and a front lifting mechanism (not shown in the figure), and the front lifting mechanism is used to drive the front lifting platform 303 to lift. The rear positioning module 302 includes a rear lifting platform and a rear lifting mechanism, and the rear lifting mechanism is used to drive the rear lifting platform to lift. In one embodiment, the two positioning modules 30 are the same in structure, Figure 7 The structure of the front positioning module 301 is shown schematically in the figure. The structures of the two positioning modules 30 can also be designed to be different according to actual needs.

[0107] Under the action of the lifting mechanism, the lifting platform can be lifted according to actual needs, so that the electric vehicle is lifted, which is beneficial to realize reliable battery replacement of the electric vehicle.

[0108] In another optional embodiment, as shown in Figure 1 and Figure 7 The front positioning module 301 further includes a first side front wheel alignment device and a second side front wheel alignment device provided on the front lifting platform 303, and / or the rear positioning module 302 further includes a first side rear wheel alignment device and a second side rear wheel alignment device provided on the rear lifting platform. The first side front wheel alignment device, the second side front wheel alignment device, the first side rear wheel alignment device, and the second side rear wheel alignment device are respectively installed on the first side front wheel alignment device reserved hole position 304, the second side front wheel alignment device reserved hole position 304, the first side rear wheel alignment device reserved hole position 304, and the second side rear wheel alignment device reserved hole position 304.

[0109] The first side front wheel alignment device, the first side rear wheel alignment device, the second side front wheel alignment device, and the second side rear wheel alignment device can more reliably position the front wheels and the rear wheels of the electric vehicle, thereby facilitating reliable battery replacement of the electric vehicle.

[0110] In another optional embodiment, the first side front wheel alignment device, the second side front wheel alignment device, and / or the first side rear wheel alignment device, the second side rear wheel alignment device are movably arranged on the front alignment module 301 and / or the rear alignment module 302 along the first direction and / or the second direction.

[0111] The movable arrangement of the corresponding front wheel alignment device and the rear wheel alignment device can adjust the distance between the corresponding alignment devices according to actual needs, thereby being applicable to different vehicle models and improving the application range of the bottom assembly 100.

[0112] It should be noted that the front wheel alignment device and the rear wheel alignment device can adopt any structure capable of achieving wheel alignment in the prior art, which will not be described here.

[0113] In another optional embodiment, as shown in Figure 3 the bottom assembly 100 further comprises at least one extension module 40, which is detachably arranged between the first guide module 10 and at least one of the alignment modules 30. Among them, Figure 3 the splicing of the extension module 40 and the first guide module 10 is schematically shown.

[0114] When the extension module 40 is arranged between the first guide module 10 and the alignment module 30, the distance between the front wheel alignment device and the rear wheel alignment device can be increased, and the battery replacement of the electric vehicle with a larger length can be adapted. Therefore, the above structure can adapt to the battery replacement of different vehicle models.

[0115] It should be noted that, as an illustrative embodiment, when the extension module 40 needs to be arranged, the connection between the first guide module 10 and the alignment module 30 needs to be released, and then the extension module 40 is installed between the alignment module 30 and the first guide module 10.

[0116] In addition, it should be noted that according to actual needs, the extension module 40 can be arranged between the alignment module 30 and the first guide module 10 on one side, or the extension module 40 can be arranged between the alignment module 30 and the first guide module 10 on both sides, or multiple extension modules 40 can be arranged between the alignment module 30 and the first guide module 10 on one side.

[0117] In another optional embodiment, as shown in Figures 3-6 the first guide module 10 is provided with a plurality of first positioning portions 107 at positions for splicing with the two support modules 20 and the two alignment modules 30, and the two support modules 20 and the two alignment modules 30 are provided with second positioning portions 201 adapted to the first positioning portions 107 at corresponding positions.

[0118] The position of the splicing of each module is provided with a corresponding positioning part, so that the splicing of each module is convenient and reliable.

[0119] Referring to Figures 3-6 It should be understood that the first positioning part 107 includes a first positioning plate 108, and the second positioning part 201 includes a second positioning plate 202 matched with the first positioning plate 108, and the first positioning plate 108 and the second positioning plate 202 are detachably connected through a flange. In this way, the assembly and disassembly are facilitated.

[0120] Alternatively, the first positioning plate 108 is further provided with a guide block 109, and the second positioning plate 202 is provided with a positioning groove 203 matched with the guide block 109. Through the cooperation of the positioning block and the positioning groove 203, the positioning is more accurate.

[0121] It should be noted that the first positioning part 107 and the second positioning part 201 can be set to any positioning structure suitable for this purpose according to actual needs, and are not limited to the above structure. For example, the first positioning part 107 and the second positioning part 201 can be set to be interchangeable.

[0122] As Figures 1-3 shown, the first track 101 at least partially extends into the support module 20. In this way, the battery replacement trolley can work with the battery transfer device 400 in the battery storage area, facilitating fast and reliable battery replacement.

[0123] As Figure 1 , Figure 5 , Figure 6 and Figure 11 shown, the support module 20 is a frame structure including at least two second cross beams extending in the first direction and at least two second longitudinal beams extending in the second direction, and the frame structure is further provided with a vertically arranged charging rack 200. The structure of the support module 20 is relatively simple, which is convenient for rapid molding, thereby facilitating the rapid molding of the battery replacement station.

[0124] As Figure 11As shown, the charging rack 200 has a column 2001 arranged on the frame structure, which also serves as a guide column of the battery transfer device 400. A guide surface is arranged on the column 2001 to guide the battery transfer device 400 to move up and down in cooperation with the battery transfer device 400. For example, the guide surface can be arranged as a flat surface or a surface matched with the wheels of the battery transfer device, or a guide rail or guide groove. In this way, the column 2001 of the charging rack 200 can also serve as the guide column of the battery transfer device 400, so that the battery transfer device 400 moves up and down along the column 2001, which eliminates the track for the stacker crane and reduces the demand for height space compared with the scheme of using the stacker crane to realize the transfer of the battery pack. Meanwhile, since the column of the charging rack is reused, the guide column required for the up and down movement of the battery transfer device does not need to be additionally arranged, which reduces the demand for horizontal space.

[0125] Figure 10 and Figure 11 A structural schematic diagram of the battery transfer device 400 in an optional embodiment is shown, and an example of the battery transfer device is given.

[0126] The battery transfer device 400 includes a battery taking and placing mechanism 4001, a guide mechanism 4002 and a transmission mechanism 4003. The battery taking and placing mechanism 4001 is used to take and place the battery from the battery compartment of the charging rack 200. The transmission mechanism 4003 is arranged between the battery taking and placing mechanism 4001 and the column 2001. The column 2001 has a guide surface. The guide mechanism 4002 is arranged between the battery taking and placing mechanism 4001 and the guide surface, so that the transmission mechanism 4003 drives the battery taking and placing mechanism 4001 to move up and down along the guide mechanism 4002.

[0127] The transmission mechanism 4003 can be a gear 4004 and a rack 4005 transmission, or a transmission belt, etc. In this embodiment, the transmission mechanism 4003 includes the gear 4004 and the rack 4005. The gear 4004 is connected with the battery taking and placing mechanism 4001. The rack 4005 is arranged on the whole column 2001 in the vertical direction. The gear 4004 and the rack 4005 are engaged with each other, so as to drive the battery taking and placing mechanism 4001 to move up and down along the guide mechanism 4002.

[0128] Through the transmission of the gear 4004 and the rack 4005 structure, the gear 4004 can drive the battery taking and placing mechanism 4001 to move up and down. Moreover, the gear 4004 and the rack 4005 themselves have a certain engagement ability, so that the battery taking and placing mechanism 4001 is kept at a certain height position through the engagement of the gear 4004 and the rack 4005. Furthermore, the up and down height of the battery taking and placing mechanism 4001 can be adjusted by changing the length of the rack 4005, which is convenient for the adjustment in the height direction.

[0129] In an alternative embodiment, the second guide module can be respectively arranged in the two support modules 20, and at least one charging rack 200 is arranged on each of the two support modules 20, and the charging rack 200 is arranged on one side of the second guide module along the first direction. The second guide module is used to provide a movement area for the battery transfer device 400 (such as a stacker crane) moving horizontally and guide the battery transfer device 400. The second guide module provides a movement area for the battery transfer device 400 to walk, which facilitates the transfer of the battery. Each second guide module includes a second track arranged along the second direction. The second track is used for the operation of the battery transfer device 400, which is beneficial to ensure the reliability of the travel and operation of the battery transfer device 400.

[0130] As an illustrative embodiment, as shown in Figure 5 The support module 20 is configured by at least two second cross beams 204 extending along the first direction and at least two second longitudinal beams 205 extending along the second direction, and the second track is arranged on each of the second longitudinal beams 205. The support module 20 has a simple structure and is easy to be quickly formed. The second track is arranged on the second longitudinal beam 205 without occupying additional space to lay the second track, which is beneficial to reduce the space occupied by the second guide module, and further beneficial to reduce the space occupied by the bottom assembly 100.

[0131] The bottom assembly 100 of the present application is assembled by each module including the first guide module 10, the two support modules 20 and the two positioning modules 30. Each module can be assembled at the same time, and then the assembled modules are assembled together, so that the forming efficiency of the bottom assembly 100 is higher. Correspondingly, the assembly efficiency of the battery swap station including the bottom assembly 100 is also higher.

[0132] Although the specific embodiments of the present application are described above, those skilled in the art should understand that this is only an example, and the protection scope of the present application is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present application, and these changes and modifications all fall within the protection scope of the present application.

Claims

1. A bottom assembly for a battery swap station, the bottom assembly comprising: The bottom assembly comprises: a first guide module, configured to provide a movement area for the battery swap trolley and guide the movement of the battery swap trolley; two support modules, oppositely arranged on two sides of the first guide module along a first direction, and configured to support the charging rack; two positioning modules, oppositely arranged on two sides of the first guide module along a second direction different from the first direction, and configured to position the electric vehicle; wherein the two support modules and the two positioning modules are respectively spliced to the first guide module; a plurality of first positioning portions are arranged at positions of the first guide module for splicing with the two support modules and the two positioning modules, and corresponding positions of the two support modules and the two positioning modules are provided with second positioning portions matched with the first positioning portions; the bottom assembly further comprises at least one extension module, which is detachably arranged between the first guide module and at least one of the positioning modules.

2. The base assembly of claim 1, wherein, The first guide module comprises at least two first tracks extending in the first direction.

3. The base assembly of claim 2, wherein, The first guide module comprises a guide frame composed of at least two first cross beams extending in the first direction and at least two first longitudinal beams extending in the second direction, and at least two first tracks are arranged on the guide frame.

4. The base assembly of claim 3, wherein, The first guide module has a middle area between the two first cross beams and / or the two first longitudinal beams, and the middle area is provided with a panel.

5. The base assembly of claim 4, wherein, The panel of the middle area is provided with a foamed filler below.

6. The base assembly of claim 1, wherein, The two positioning modules are a front positioning module located at the front side of the first guide module and a rear positioning module located at the rear side of the first guide module, the front positioning module comprises a front lifting platform and a front lifting mechanism, the front lifting mechanism is used to drive the front lifting platform to lift, the rear positioning module comprises a rear lifting platform and a rear lifting mechanism, the rear lifting mechanism is used to drive the rear lifting platform to lift.

7. The base assembly of claim 6, wherein, The front positioning module further comprises a first side front wheel positioning device and a second side front wheel positioning device arranged on the front lifting platform, and / or the rear positioning module further comprises a first side rear wheel positioning device and a second side rear wheel positioning device arranged on the rear lifting platform.

8. The base assembly of claim 7, wherein, The first side front wheel positioning device, the second side front wheel positioning device, and / or the first side rear wheel positioning device, the second side rear wheel positioning device are movably arranged on the front positioning module and / or the rear positioning module along the first direction and / or the second direction.

9. The base assembly of claim 1, wherein, The first positioning portion comprises a first positioning plate, the second positioning portion comprises a second positioning plate matched with the first positioning plate, and the first positioning plate and the second positioning plate are detachably connected through a flange.

10. The base assembly of claim 9, wherein, The first positioning plate is further provided with a guide block, and the second positioning plate is provided with a positioning groove matched with the guide block.

11. The base assembly of claim 2, wherein, The first track at least partially extends into the support module.

12. The bottom assembly of any one of claims 1-11, wherein, The support module is a frame structure comprising at least two second cross beams extending in the first direction and at least two second longitudinal beams extending in the second direction, and the frame structure is further provided with a vertically arranged charging rack.

13. The base assembly of claim 12, wherein, The charging rack has a column arranged on the frame structure, the column also serves as a guide column of the battery transfer device, and a guide surface is arranged on the column to guide the battery transfer device to move up and down along the column.

14. The base assembly of any one of claims 1-11, wherein, Second guide modules are respectively arranged in the two support modules, and at least one charging rack is arranged on each of the two support modules, the charging rack being arranged on one side of the second guide module along the first direction; the second guide module is used for providing a movement area for the horizontally moving battery transfer device and guiding the battery transfer device.

15. The base assembly of claim 14, wherein, Each second guide module comprises a second track arranged along the second direction.

16. The base assembly of claim 15, wherein, The support module is configured by at least two second cross beams extending along the first direction and at least two second longitudinal beams extending along the second direction, and the second track is arranged on the second longitudinal beam.

17. A battery swap station, characterized by, It comprises the bottom assembly according to any one of claims 1-16.

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