Stable-structure battery swap station

Abstract

The invention provides a stable-structure battery swap station, which comprises a battery rack with a plurality of battery compartments for storing battery packs and battery transfer equipment for transferring batteries among the battery compartments, and the battery transfer equipment is positioned between the battery rack and the corresponding side wall of the battery swap station. The battery transfer equipment is provided with a mounting part used for mounting a transfer main body part, and the mounting part and a frame and / or a battery rack of the battery swap station are fixed into an integrated structure. By adopting the structural arrangement, the battery transfer equipment and the battery swap station frame or the battery rack are fixed into an integrated structure, so that impact generated by operation of the battery transfer equipment can be transmitted and dispersed, the operation stability and reliability are improved, the requirement for the structural strength of the mounting part is lowered, and the structure and the material thickness of the mounting part can be simplified; the purposes of reducing cost, reducing weight and the like are achieved. And the mounting part, the battery rack and the battery swap station frame can be mutually reinforced, so that the structure of the battery swap station is more stable.

Description

[0001] This application is a division of a Chinese invention patent with an application date of December 2, 2021, application number 202111474094.2, and name “Structurally Stable Battery Exchange Station”. Technical Field

[0002] The present invention relates to the technical field of vehicle battery replacement, and in particular to a battery replacement station with a stable structure. Background Art

[0003] When replacing the battery of an existing electric vehicle, it is usually necessary to remove the depleted battery from the electric vehicle and transport it to the battery rack, and to remove the fully charged battery from the battery rack and transport it to the electric vehicle. The component that realizes the battery taking and placing relative to the battery rack is the battery transfer equipment. Among them, the batteries are usually stored in the form of stacking on the battery rack. Therefore, when the battery transfer equipment takes out or places the batteries, the battery transfer equipment needs to move in the horizontal direction or vertical direction to correspond to different battery positions; specifically, the battery taking and placing mechanism in the battery transfer equipment is configured to be movable and can be matched with different battery positions. Based on this structure, since the battery taking and placing mechanism can be movably set, and it is also necessary to move after loading the battery, the stability of the carrying body of the battery transfer equipment is very high, and it is necessary to avoid shaking, impact and noise during the movement, which leads to the cost of the battery transfer equipment. Moreover, with different movement modes, the structure and cost of the carrying body will also change. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of battery transfer equipment in the prior art and to provide a battery exchange station with a stable structure, aiming to enable the battery transfer equipment to achieve more stable, reliable and low-cost battery transfer.

[0005] The present invention solves the above technical problems through the following technical solutions:

[0006] A structurally stable battery swap station, the station comprising a battery rack having a plurality of battery slots for storing battery packs and a battery transfer device for transferring batteries between the battery slots, the battery transfer device being located between the battery rack and a corresponding side wall of the battery swap station, the battery transfer device having a mounting portion for installing a transfer body, the mounting portion being fixed to a frame of the battery swap station and / or the battery rack as an integrated structure.

[0007] By adopting the above-mentioned structural setting, the battery transfer equipment is fixed to the battery exchange station frame or battery rack as an integrated structure, so that the impact generated by the operation of the battery transfer equipment can be transmitted and dispersed, thereby improving the operational stability and reliability of the battery transfer equipment. In addition, by relying on the battery exchange station or battery rack to share part of the load from the installation part, the structural strength requirements of the installation part itself are reduced, and the structure and material thickness of the installation part can be simplified, thereby achieving the purpose of reducing costs and weight.

[0008] At the same time, by connecting the installation part, battery rack and battery swap station frame in an integrated manner, the installation part, battery rack and battery swap station frame can reinforce each other, so that the structural strength and stability of the battery rack and the battery swap station frame are improved, and the structure of the battery swap station is more stable.

[0009] Preferably, the mounting portion comprises a supporting frame having four columns, and the bottom and top surface of the supporting frame are respectively fixedly connected to the bottom and top of the battery swap station.

[0010] The above structure can enhance the connection stability between the battery transfer equipment and the battery swap station, so that the impact generated by the operation of the battery transfer equipment can be transmitted and dispersed, thereby improving the stability and reliability of the operation. At the same time, the battery swap station can help the support frame share part of the load, so that the structural strength requirements of the support frame itself are reduced, and then the structure and material thickness of the support frame can be simplified, so as to achieve the goals of reducing costs and weight.

[0011] Preferably, the top of the support frame is fixed to the top of the battery swap station as an integrated structure through a top surface connection unit;

[0012] And / or, the bottom of the support frame is fixed to the bottom of the battery swap station as an integrated structure via a bottom surface connection unit.

[0013] The battery transfer equipment connects the top and bottom of its support frame to the battery swap station through the top connection unit and the bottom connection unit, so that the support frame and the top and bottom of the battery swap station form an integrated structure, further strengthening the connection stability between the battery transfer equipment and the battery swap station, so that the impact generated by the operation of the battery transfer equipment can be transmitted and dispersed, and the operation stability and reliability are improved. At the same time, the battery swap station can help the support frame share part of the load, so that the structural strength requirements of the support frame itself are reduced, and the structure and material thickness of the support frame can be simplified to achieve the purpose of reducing costs and weight.

[0014] At the same time, at the location where the battery transfer equipment is set up in the battery swap station, an indirect connection between the top of the battery swap station and the bottom of the battery swap station is achieved through a support frame, which is beneficial to improving the structural stability of the top of the battery swap station.

[0015] Preferably, the bottom connection unit includes a connection base, which is covered on the bottom surface of the battery swap station. A first mounting hole is provided on the connection base. The connection base is connected to the bottom surface of the battery swap station through the first mounting hole, and the four columns of the support frame are all fixed on the surface of the connection base.

[0016] Through the above-mentioned structural setting, the connection strength between the columns of the support frame located at the end corners of the battery loading and unloading unit can be improved, so that the load borne by each column can be effectively transferred to the bottom surface of the battery swap station, thereby improving the overall structural strength and effectively reducing costs.

[0017] Preferably, the top surface connection unit has a second mounting hole for connecting to a top frame of the battery swap station, and the position of the second mounting hole along the height direction is adjustable.

[0018] Through the above-mentioned structural setting, after the battery transfer equipment is placed in place relative to the battery swap station, the height position of the second mounting hole is adjusted to facilitate the alignment and connection between the top surface connection unit and the top surface frame of the battery swap station, thereby reducing the difficulty of connection.

[0019] Preferably, the two uprights in the support frame close to the side wall of the battery swap station are fixedly connected to the battery rack via a first connecting unit;

[0020] And / or, the two columns in the support frame arranged close to the battery rack are fixedly connected to the side frame of the battery swap station through a second connecting unit.

[0021] Through the above-mentioned structural setting, the mounting part is fixed to the battery rack and the side frame of the battery swap station to form an integrated structure. The battery rack and the side frame of the battery swap station can help the support frame share part of the load, so that the structural strength requirement of the support frame itself is further reduced, thereby further achieving the purpose of simplifying the structure and material thickness of the support frame.

[0022] Preferably, the column includes: a steel member extending in a vertical direction, the cross-section of the steel member being U-shaped, and one side of the notch of the U-shape of the steel member facing the first connection unit or the second connection unit; a connecting plate, the two ends of the connecting plate being respectively overlapped on the two ends of the U-shape of the steel member, and the outer surface of the connecting plate is used for connection with the first connection unit or the second connection unit.

[0023] Through the above-mentioned structural arrangement, the columns of the support frame can save materials on the basis of meeting the structural strength required for connection by the first connection unit, thereby achieving the purpose of cost reduction and weight reduction.

[0024] Preferably, the mounting portion includes a supporting frame having four columns; the transport body portion includes: a battery picking and placing unit disposed between the four columns and capable of being raised and lowered; a plurality of transmission units for driving the battery picking and placing unit to be raised and lowered; and a driving unit for providing power to the transmission unit.

[0025] Through the above-mentioned structural setting, the battery pick-and-place unit is relatively fixed and supported by relying on the four columns of the supporting frame, thereby improving stability and balance. The driving unit further provides power to the transmission unit to drive the battery pick-and-place unit to be lifted and lowered, thereby realizing the lifting and lowering of the battery pick-and-place unit.

[0026] Preferably, the transmission unit is arranged corresponding to the column, and each of the transmission units includes a rack fixed on the corresponding column, and a gear arranged at a preset position of the battery picking and placing unit and meshing with the rack. The driving unit drives the gear to rotate to drive the battery picking and placing unit to achieve lifting and moving.

[0027] The transmission unit uses gears and racks to drive the battery pick-and-place unit to move up and down, effectively combining the smooth transmission and high transmission efficiency of the gear rack with the working scenario of the battery transfer equipment. The gear rack transmission unit can keep the battery pack pick-and-place process of the battery pick-and-place unit smooth and safe, thereby improving the efficiency of battery pack pick-and-place; and making the structure of the battery transfer equipment more compact, saving floor space, and further reducing equipment costs.

[0028] Preferably, the number of the transmission units is four, which are respectively arranged at the end angle positions on both sides of the battery pick-and-place unit, and the driving unit includes two driving assemblies, which are respectively arranged on both sides of the battery pick-and-place unit.

[0029] With the above structure, one driving assembly drives two transmission units on the same side to drive the battery pick-and-place unit to move up and down, thereby further simplifying the overall structure of the battery transport equipment and reducing equipment costs.

[0030] Preferably, each of the driving components includes a driving motor, a synchronous shaft respectively connected to the gears of the transmission unit at both ends, a driving wheel and a driven wheel respectively mounted on the output shaft of the driving motor and the synchronous shaft, and a synchronous belt transmitting between the driving wheel and the driven wheel.

[0031] With the above-mentioned structural setting, through the synchronous shaft, only one drive motor is used on one side of the battery pick-and-place unit to control two sets of gear rack transmission units to work at the same time, so that the gears on one side of the battery pick-and-place unit can be synchronously and uniformly lifted and lowered along the support part. At the same time, such a structure can simplify the overall structure of the transmission unit, thereby achieving the beneficial technical effect of reducing the occupied space and reducing the manufacturing cost. In addition, the use of a belt drive between the drive motor and the synchronous shaft can effectively reduce the precision requirements for the manufacture and installation of the drive assembly, which is conducive to reducing the manufacturing cost and facilitating the disassembly and maintenance of the operator.

[0032] Preferably, the transport body also includes: an anti-fall mechanism, which has a first state and a second state. In the first state, the anti-fall mechanism is engaged with the synchronization shaft to limit the battery placement unit; in the second state, the anti-fall mechanism is away from the synchronization shaft, and the synchronization shaft rotates normally.

[0033] By setting up an anti-fall mechanism, when the transmission unit is operating normally, the anti-fall mechanism remains disengaged from the synchronization shaft of the transmission unit to avoid affecting the transmission unit's driving of the battery pick-and-place unit to lift and lower; in special circumstances, the anti-fall mechanism limits the rotation of the synchronization shaft by engaging with the synchronization shaft, thereby limiting the position of the battery pick-and-place unit, achieving the anti-fall purpose and ensuring safe operation of the equipment.

[0034] Preferably, the transmission unit also includes an anti-tooth disengagement assembly, which includes a plurality of back wheel groups. The plurality of back wheel groups are respectively arranged corresponding to the transmission units and are fixed at preset positions of the battery loading and unloading unit to locate the position of the gear in each transmission unit relative to the rack.

[0035] By setting an anti-tooth-off component in the transmission unit and setting a back wheel group at the position corresponding to each gear rack transmission unit, the position of the gear relative to the rack is limited, thereby improving the transmission effect and operation stability of the gear rack transmission unit.

[0036] The positive and progressive effects of the present invention are:

[0037] By fixing the battery transfer equipment and the battery swap station frame or battery rack into an integrated structure, the impact generated by the battery transfer equipment operation can be transmitted and dispersed, improving the stability and reliability of the battery transfer equipment operation. In addition, by relying on the battery swap station or battery rack to share part of the load from the installation part, the structural strength requirements of the installation part itself are reduced, and the structure and material thickness of the installation part can be simplified, achieving the goals of reducing costs and weight.

[0038] At the same time, by connecting the installation part, battery rack and battery swap station frame in an integrated manner, the installation part, battery rack and battery swap station frame can reinforce each other, so that the structural strength and stability of the battery rack and the battery swap station frame are improved, and the structure of the battery swap station is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 This is a schematic structural diagram of a battery swap station according to an embodiment of the present invention (I).

[0040] Figure 2 This is a structural schematic diagram of a battery swap station according to an embodiment of the present invention (II).

[0041] Figure 3 The figure is a schematic diagram of the partial structure of a battery swap station according to an embodiment of the present invention.

[0042] Figure 4 It is a schematic structural diagram of a battery transport device according to an embodiment of the present invention.

[0043] Figure 5 Schematic diagram of the connection relationship between the side of the battery transport equipment and the battery swap station according to an embodiment of the present invention (I).

[0044] Figure 6 Schematic diagram of the connection relationship between the side of the battery transport equipment and the battery swap station according to an embodiment of the present invention (II).

[0045] Figure 7 Schematic diagram of the connection relationship between the side of the battery transport equipment and the battery swap station according to an embodiment of the present invention (III).

[0046] Figure 8 Schematic diagram of the connection relationship between the side of the battery transport equipment and the battery rack according to one embodiment of the present invention (I).

[0047] Fig. 9 Schematic diagram (II) of the connection relationship between the side of the battery transport equipment and the battery rack according to an embodiment of the present invention.

[0048] Fig.10 This is a schematic diagram of the connection relationship between the bottom of the battery transport equipment and the battery swap station according to an embodiment of the present invention.

[0049] Fig.11 The figure is a schematic diagram of the connection relationship of the bottom connection unit according to an embodiment of the present invention.

[0050] Fig.12 It is a schematic structural diagram of a top surface connection unit according to an embodiment of the present invention.

[0051] Fig.13 Schematic diagram of the connection relationship of the top surface connection unit according to an embodiment of the present invention.

[0052] Fig.14 Schematic diagram (I) of the top surface of a support frame according to an embodiment of the present invention.

[0053] Fig.15 This is a schematic diagram (II) showing the state of the top surface of a support frame according to an embodiment of the present invention.

[0054] Fig.16 It is a schematic structural diagram of a column of a support frame according to an embodiment of the present invention.

[0055] Fig.17 FIG. 4 is a schematic structural diagram of a first connecting unit according to an embodiment of the present invention.

[0056] Fig.18 This is a structural schematic diagram of a battery transport device according to an embodiment of the present invention (II).

[0057] Fig.19 It is a structural schematic diagram of a transmission unit of a battery transport device according to an embodiment of the present invention.

[0058] Fig. 20 The figure is a schematic diagram of the overall structure of an anti-falling mechanism according to an embodiment of the present invention.

[0059] Fig.21 Schematic diagram of the structure of the anti-falling mechanism in the first state according to an embodiment of the present invention.

[0060] Fig. 22 Schematic diagram of the structure of the anti-falling mechanism in the second state according to an embodiment of the present invention.

[0061] Fig.23 It is a schematic diagram of the partial structure of the anti-falling mechanism according to an embodiment of the present invention.

[0062] Fig.24 The figure is a schematic structural diagram of an anti-tooth-off assembly according to an embodiment of the present invention.

[0063] Fig.25 The figure is a schematic diagram of the layout position of the back wheel relative to the rack according to an embodiment of the present invention. DETAILED DESCRIPTION

[0064] A preferred embodiment is given below, and the present invention is described more clearly and completely in conjunction with the accompanying drawings.

[0065] The present invention provides a structurally stable battery swap station 100, the structure of which is as follows: Figure 1As shown. In order to facilitate the display of the internal layout of the battery swap station 100, part of the top plate located on the top of the battery swap station 100 is hidden. In this embodiment, the battery swap station 100 includes a first battery swap module 101, a driving lane 102, and a second battery swap module 103 from left to right. When the vehicle to be replaced enters and stops at a pending position in the driving lane 102, the battery swap cart removes the battery from the bottom of the vehicle and moves it to the left or right to the first battery swap module 101 or the second battery swap module 103. Because the first battery swap module 101 and the second battery swap module 103 both have a battery rack 20 with multiple battery slots 201 for storing battery packs and a battery transfer device 10 for transferring batteries between the battery slots 201. Here, the battery transportation to the second battery exchange module 103 is taken as an example to describe the battery exchange process of the battery exchange vehicle in the battery exchange station 100: after the battery exchange vehicle moves the battery to the second battery exchange module 103, the battery transport device 10 removes the battery from the battery exchange vehicle and places it on a battery compartment 201 of the battery rack 20, so that the battery rack 20 performs a charging operation on the battery. Afterwards, the battery transport device 10 takes out another fully charged battery from another battery compartment 201 of the battery rack 20 and transports the battery to the battery exchange vehicle. The battery exchange vehicle transports the battery to the bottom of the vehicle by horizontal movement and installs it on the vehicle to achieve the purpose of battery exchange.

[0066] Here, the second battery exchange module 103 of the battery exchange station 100 is taken as an example. The layout of the second battery exchange module 103 is as follows: Figure 2 and Figure 3 As shown, the battery rack 20 is arranged at a position close to one side of the driving lane 102, and the battery compartments 201 on the battery rack 20 are stacked in sequence in the vertical direction. The battery transfer equipment 10 is located between the battery rack 20 and the corresponding side wall of the battery swap station 100, thereby improving the space utilization rate of the battery swap station 100.

[0067] The battery transport equipment 10 has a mounting portion 1 for mounting the transport main body. The mounting portion 1 in this embodiment is fixed to the frame of the battery swap station 100 and the battery rack 20 as an integral structure, so that the impact generated by the movement of the battery transport equipment 10 can be transmitted and dispersed to the frame of the battery swap station 100 and the battery rack 20, so as to improve the operational stability and reliability of the battery transport equipment 10, and transmit the impact generated by the operation of the battery transport equipment 10 to various parts of the battery swap station 100, and can also reduce the noise generated by the battery swap station 100. The mounting portion 1 is fixed to the battery rack 20 as an integral structure on the side facing the battery rack 20, and is fixed to the frame of the battery swap station 100 as an integral structure on the side facing away from the battery rack 20, so that the structural strength requirement of the mounting portion 1 itself is reduced. In addition, by relying on the battery swap station 100 or the battery rack 20 to share part of the load from the mounting portion 1, the structural strength requirement of the mounting portion 1 itself is reduced, and the structure and material thickness of the mounting portion 1 can be simplified to achieve the purpose of reducing costs and weight. In addition, by integrally connecting the mounting part 1 in the battery rack 20 and the frame of the battery rack 100, the mounting part 1, the battery rack 20 and the frame of the battery rack 100 can reinforce each other, thereby improving the structural strength and stability of the battery rack 20 and the frame of the battery rack 100, and making the structure of the battery rack 100 more stable.

[0068] In this embodiment, the mounting portion 1 includes a supporting frame 11, and the side surfaces of the supporting frame 11 are composed of four columns 111. Therefore, the two sides of the mounting portion 1 are fixed to the battery rack 20 and the frame of the battery swap station 100 as an integrated structure by connecting the corresponding columns 111 of the supporting frame 11.

[0069] In this embodiment, the column 111 of the support frame 11 is fixed to the frame of the battery swap station 100 as an integrated structure. Figure 5-Figure 7 As shown: In this embodiment, the mounting portion 1 relies on the second connection unit 82 to realize the connection between the column 111 and the frame of the battery swap station 100. The second connection unit 82 in this embodiment is specifically a rectangular tube extending in the horizontal direction. The second connection unit 82 of the rectangular tube is connected to the two columns 111 of the support frame 11 on one side of the surface facing the mounting portion 1, and the other side is connected to the two frame columns 106 at the two end corners of the battery swap station 100. Through the above-mentioned structural arrangement, the mounting portion 1 is connected to the battery swap station 100 in an integrated manner.

[0070] Among them, the frame columns 106 of the battery swap station 100 in this embodiment are only arranged at the end corner positions of the battery swap station 100. Therefore, the second connection unit 82 has a longer length extending in the horizontal direction. In other embodiments, if the frame columns 106 of the battery swap station 100 are arranged at other positions, the second connection unit 82 can also extend and be connected to the frame columns 106.

[0071] In this embodiment, the column 111 of the support frame 11 and the battery rack 20 are fixed as an integral structure. Figure 8 and Fig. 9 As shown: In this embodiment, the first connecting unit 81 is an L-shaped adapter, which is fixed to the battery rack 20 and the column 111 of the support frame 11 through two mounting planes arranged at 90 degrees, thereby achieving a fastened connection between the battery rack 20 and the column 111.

[0072] The specific connection structure is as follows Fig. 9 As shown, in this embodiment, the width of the battery rack 20 toward the support frame 11 is H1, which is smaller than the width H2 of the support frame 11. Therefore, the battery rack 20 is connected by installing the first connecting units 81 on the columns 111 on both sides. Through the corner connection method of the first connecting unit 81, there is no need to consider the width difference between the battery rack 20 and the support frame 11 bracket, which is conducive to the interconnection between battery racks of different sizes and battery transportation equipment.

[0073] It should be clearly stated that the specific structure of the first connection unit 81 and the second connection unit 82 provided in this embodiment is only a more preferred structural implementation scheme in the present invention. In other embodiments, the first connection unit 81 and the second connection unit 82 may also adopt other structures to achieve an integrated connection between the battery transfer equipment 10 and the frame of the battery swap station 100 and the battery rack 20. For example, in other embodiments, the battery transfer equipment 10 may also be installed on the column 111 on the side facing the battery swap station 100. A corner connection structure similar to the first connection unit 81 is installed to achieve a reliable connection relative to the frame column 106 of the battery swap station 100.

[0074] In the present embodiment, the battery transfer equipment 10 of the battery swap station 100 is not only integrally connected to the battery rack 20 and the frame of the battery swap station 100 through its side surface, but the bottom and top surfaces of the support frame 11 of the battery transfer equipment 10 are also fixedly connected to the bottom and top of the battery swap station 100 to further strengthen the support frame 11, thereby improving the stability and reliability of the operation of the battery transfer equipment 10 and simplifying the structure and material thickness of the support frame 11.

[0075] At the same time, the battery swap station 100 realizes an indirect connection between the top of the battery swap station 100 and the bottom of the battery swap station 100 through the support frame 11 of the battery transfer equipment 10, which is also beneficial to improving the structural stability of the top of the battery swap station 100.

[0076] Among them, the top surface 12 of the support frame 11 is fixed to the top of the battery swap station 100 as an integral structure through the top surface connection unit 4. The bottom of the support frame 11 is fixed to the bottom of the battery swap station 100 as an integral structure through the bottom surface connection unit 6. The above-mentioned structural form can strengthen the connection between the battery transfer equipment 10 and the battery swap station 100, and further strengthen the connection stability between the battery transfer equipment 10 and the battery swap station 100, so that the impact generated by the operation of the battery transfer equipment 10 can be transmitted and dispersed, thereby achieving the purpose of improving the stability and reliability of operation. At the same time, the battery swap station 100 can help the support frame 11 share part of the load, so that the structural strength requirements of the support frame 11 itself are reduced, and then the structure and material thickness of the support frame 11 can be simplified, so as to achieve the purposes of reducing costs and weight.

[0077] In addition, if Fig.10 As shown, the two columns 111 of the support frame 11 close to the side wall of the battery swap station 100 are fixedly connected to the battery rack 20 through the first connection unit 81. The two columns 111 of the support frame 11 close to the battery rack 20 are fixedly connected to the side wall frame of the battery swap station 100 through the second connection unit 82. Through the above-mentioned structural arrangement, the mounting portion 1 is fixed to the battery rack 20 and the side frame of the battery swap station 100 to form an integrated structure. The battery rack 20 and the side frame of the battery swap station 100 can help the support frame 11 share part of the load, so that the structural strength requirement of the support frame 11 itself is further reduced, and the purpose of simplifying the structure and material thickness of the support frame 11 is further achieved.

[0078] In this embodiment, a relatively better structural arrangement scheme of the top surface connection unit 4 and the bottom surface connection unit 6 is also provided. Fig.11 As shown, in this embodiment, the bottom connection unit 6 includes a connection base 61, which is covered on the bottom platform 104 of the battery swap station 100 to achieve a larger area of ​​contact with the bottom surface of the battery swap station 100, facilitate force transmission, and improve the stability of the connection. In this embodiment, the four columns 111 at the end corners of the support frame 11 corresponding to the battery transport device 10 are all fixedly connected to the upper surface of the connection base 61, wherein the fixed connection method can adopt the solutions existing in the prior art, such as welding, bolt connection, etc.

[0079] A first mounting hole is provided on the surface of the connection base 61, which is used for screws to penetrate, so that the ends of the screws are fixed in the corresponding threaded holes on the bottom surface of the battery swap station 100. The four columns 111 of the support frame 11 are all fixed on the surface of the connection base 61, which improves the connection strength between the columns 111 of the support frame 11 at the end surface of the battery transport device 10, so that the load on each column 111 can be effectively transferred to the bottom surface of the battery swap station 100, thereby improving the overall stability of the battery swap station 100 during operation.

[0080] like Fig.12 and Fig.13 As shown, in this embodiment, the top surface connection unit 4 includes a horizontal connection member 41 and an adjustment member 42 .

[0081] Among them, there are two horizontal connecting members 41, which are respectively arranged along the relatively parallel directions of the top surface 12 of the supporting frame 11, and are located directly above the top surface 12 of the supporting frame 11. The number of horizontal connecting members 41 is at least two, and each horizontal connecting member 41 is arranged in parallel and distributed at least at both ends of the top surface 12 of the supporting frame 11. Both ends of these horizontal connecting members 41 are connected to the top frame 105 of the battery swap station 100, thereby realizing the integrated connection of the top surface 12 of the supporting frame 11 relative to the battery swap station 100.

[0082] Each horizontal connector 41 has a second mounting hole 411 at both ends, and the horizontal connector 41 is fixed to the side surface of the top frame 105 at the top of the battery swap station 100 by screwing the screws through the second mounting holes 411. The position of the second mounting hole 411 along the height direction is adjustable, so after the battery transport device 10 is placed in place relative to the battery swap station 100, by adjusting the height position of the second mounting hole 411, the corresponding connection between each horizontal connector 41 and the top frame of the battery swap station 100 is facilitated, reducing the difficulty of connection.

[0083] An adjusting member 42 is provided between the horizontal connecting member 41 and the top surface 12 of the supporting frame 11. The adjusting member 42 is used to realize the connection of the horizontal connecting member 41 relative to the top surface 12 of the supporting frame 11, and the adjusting member 42 can adjust the distance between the horizontal connecting member 41 and the top surface 12 of the supporting frame 11 in the vertical direction. Therefore, by providing the adjusting member 42, a second mounting hole 411 connected to the battery swap station 100 is formed in an upwardly extending manner at the top surface 12 of the supporting frame 11, so that the second mounting hole 411 is provided without considering the height of the supporting frame 11, so as to be adapted to battery transport equipment 10 of different heights, and has the characteristic of high versatility.

[0084] In addition, in this embodiment, Fig.14 and Fig.15As shown, after the battery transport equipment 10 is hoisted relative to the battery swap station 100, the top surface connection unit 4 is installed on the top of the battery transport equipment 10. Therefore, a third mounting hole 13 is set on the top surface 12 of the support frame 11 of the battery transport equipment 10. When the top surface connection unit 4 is not installed, the third mounting hole 13 is also reused as a structure for the installation of the hoisting member 9. Through this structural setting, when the battery transport equipment 10 is to be hoisted into the battery swap station 100, the third mounting hole 13 for the installation of the adjustment member 42 is used to achieve the purpose of temporarily installing the hoisting member 9, meeting the hoisting requirements. After the hoisting is completed, the hoisting member 9 is removed and the adjustment member 42 is installed, so that the third mounting hole 13 has two functions at the same time.

[0085] In this embodiment, a preferred structural setting scheme of the column 111 is also provided to meet the requirements of weight reduction, cost reduction and material saving, and to realize the requirements of installing the first connecting unit 81 and the second connecting unit 82. Fig.16 As shown, the specific structure of the column 111 is as follows: the column 111 is composed of a steel member 1111 extending in the vertical direction and a plurality of connecting plates 1112 fixed on the steel member 1111. The cross section of the steel member 1111 is U-shaped, and the connecting plate 1112 is installed on one side of the U-shaped notch of the steel member 1111. The connecting plate 1112 is fixed to the two ends of the U-shaped steel member 1111 by welding on both sides along the length direction, and a fourth mounting hole 11121 for connecting the first connecting unit 81 or the second connecting unit 82 is provided on the surface of the connecting plate 1112. The fourth mounting hole 11121 can be a threaded hole for fixing by screw. The column 111 is arranged in this structure, so that the column 111 can save the material of the column 111 on the basis of realizing the function of connecting the first connecting unit 81 or the second connecting unit 82, thereby achieving the purpose of reducing cost and weight.

[0086] Corresponding to the specific implementation structure of the column 111 provided in this embodiment, the first connection unit 81 and the second connection unit 82 can adopt the following structure to realize reliable connection of the column 111 relative to the battery rack 20 or the side wall of the battery swap station 100. At the same time, it can also have the ability to adjust the installation position in the horizontal or vertical direction to improve the installation adaptability. Here, the specific structure of the first connection unit 81 is taken as an example:

[0087] like Fig.17As shown, in this embodiment, the first connecting unit 81 has a first mounting plate 811 and a second mounting plate 812 which are arranged at a 90° angle relative to each other. The first mounting plate 811 is used to connect to the support column of the battery rack 20, and the second mounting plate 812 is fixed to the fourth mounting hole 11121 of the connecting plate 1112 of the column 111 by screws. The first mounting plate 811 and the second mounting plate 812 are arranged at a 90° angle to facilitate connecting the battery rack 20 and the support frame 11 of the battery transport equipment 10 from different directions, thereby leaving enough installation space for construction personnel to achieve fixed connection of the battery rack 20 to the battery transport equipment 10 by means of different mounting bolts and other fasteners. Fig.17 It can be seen that the surfaces of the first mounting plate 811 and the second mounting plate 812 are respectively provided with waist-shaped holes extending in different directions, the waist-shaped holes provided on the first mounting plate 811 are extended in the horizontal direction, and the waist-shaped holes provided on the second mounting plate 812 are two waist-shaped holes extending in the vertical direction. Through these waist-shaped holes provided in the horizontal or vertical direction, the first connecting unit 81 has the ability to adjust the installation position in the horizontal and vertical directions, so as to better fit the structure to be connected and achieve the purpose of reliable connection.

[0088] In addition, the first connection unit 81 also includes a reinforcing plate 813 connected to the first mounting plate 811 and the second mounting plate 812 respectively. By providing the reinforcing plate 813, the position of the first mounting plate 811 relative to the second mounting plate 812 can be prevented from being deformed during long-term use.

[0089] like Fig.18As shown, the transport body includes a battery pick-and-place unit 2 for picking up and placing batteries relative to any battery compartment of the battery rack 20. The battery pick-and-place unit 2 is arranged between the four columns 111, and the battery pick-and-place unit 2 is driven to move up and down in the vertical direction on the columns 111 through the transmission unit 5. The above-mentioned structural arrangement can rely on the four columns 111 of the support frame 11 to relatively fix and support the battery pick-and-place unit 2, thereby improving stability and balance. Furthermore, the drive unit can provide power to the transmission unit 5 so that the transmission unit 5 drives the battery pick-and-place unit 2 to move up and down. The type and quantity of the drive unit and the transmission unit 5 can be selected as needed. The drive unit can select a group of drive units to drive multiple groups of transmission units 5 at the same time, or multiple groups of drive components 51 can be selected to drive multiple groups of transmission units 5 at the same time, provided that the normal operation of the battery pick-and-place unit 2 is guaranteed to achieve the purpose of the battery pick-and-place operation. In this embodiment, there are four transmission units 5, which are respectively arranged at the four end corners of the battery picking and placing unit. The driving unit includes two driving components, which are respectively arranged on the left and right sides of the battery picking and placing unit 2. The driving components located on one side are respectively connected to the two transmission units 5 at both ends of the same side to provide power to the two transmission units 5, thereby realizing the lifting and lowering of the battery picking and placing unit 2 relative to the support frame 11.

[0090] In addition, if Figure 4 As shown, in this embodiment, the transport body also includes two counterweight units 7, which are distributed on the left and right sides of the battery picking and placing unit 2, and are connected to the battery picking and placing unit 2 through a chain (not shown in the figure). The chain changes its transmission direction through a pulley set 71, so that when the battery picking and placing unit 2 rises, the counterweight unit 7 drops synchronously, and when the battery picking and placing unit 2 drops, the counterweight unit 7 rises synchronously to achieve the purpose of counterweighting.

[0091] like Fig.19 As shown, in this embodiment, the transmission unit 5 is arranged corresponding to the column 111, and each transmission unit 5 includes a rack 53 fixed on the corresponding column 111, and a gear 52 arranged at the battery pick-up and placement position and meshing with the rack 53, so that the driving unit drives the battery pick-up and placement unit 2 to achieve lifting by rotating the driving gear 52. The above method can effectively combine the characteristics of stable transmission and high transmission efficiency of the gear 52 and the rack 53 with the working scene of the battery transport equipment 10, so that the gear 52, the rack 53 and the transmission unit 5 can keep the battery pack pick-up and placement process of the battery pick-up and placement unit 2 stable and safe, improve the pick-up and placement efficiency of the battery pack, and make the structure of the battery transport equipment 10 more compact, save space, and further reduce equipment costs.

[0092] There are four transmission units 5, which correspond to the end angle positions on both sides of the battery pick-and-place unit 2, and are respectively arranged between the support frame 11 and the battery pick-and-place unit 2. The gear 52 is arranged on the battery pick-and-place unit 2, and the rack 53 is arranged on the support frame 11 in the vertical direction, and the gear 52 and the rack 53 are kept in a state of mutual meshing. The two driving units include two driving assemblies 51, and the driving assemblies 51 are respectively arranged on both sides of the battery pick-and-place unit 2 to drive the transmission units 5 at both ends of the same side of the battery pick-and-place unit 2 to synchronously drive the battery pick-and-place unit 2 to move up and down with the synchronous belt 513. That is, when the driving assembly 51 moves, the driving assembly 51 will drive the gear 52 to roll on the rack 53, so that the gear 52 installed on the battery pick-and-place unit 2 drives the battery pick-and-place unit 2 to move up and down on the support frame 11, further simplifying the overall structure of the battery transport equipment and reducing the equipment cost.

[0093] like Figure 20 to Figure 21 As shown, for the drive components 51 arranged on the left and right sides of the battery pick-up and placement unit 2, each drive component 51 includes a drive motor 514, a synchronous shaft 512 and a synchronous belt 513, wherein the synchronous shaft 512 connects the transmission units 5 at both ends, the synchronous shaft 512 includes a driving wheel 512a and a driven wheel 512b, the output shaft of the drive motor 514 is coaxially connected to the driving wheel 512a, the driving wheel 512a and the driven wheel 512b are connected by a synchronous belt 513, and the entire movement process of the transmission unit 5 is as follows: the rotation of the driving wheel 512a drives the rotation of the driven wheel 512b through the synchronous belt 513, so as to drive the rotation of the synchronous shaft 512, and then drive the two groups of gears 52 of the transmission units 5 respectively connected at both ends of the synchronous shaft 512, so that the gears 52 are lifted and lowered on the corresponding racks 53, and finally the battery pick-up and placement unit 2 is lifted and lowered and the battery is transported.

[0094] The type and quantity of the synchronous belt 513 can be selected as needed, and a transmission belt or chain can be selected, or multiple upper layers or single layers can be set to run together. In this embodiment, the use of a chain can meet the needs of larger operation to meet the higher battery transportation needs of the battery swap station 100.

[0095] The battery pick-and-place unit 2 is placed in the support frame 11, and gear rack transmission units are respectively installed between the four ends of the battery pick-and-place unit 2 and the support frame 11. Synchronous shafts 512 and drive motors 514 are respectively installed on both sides of the battery pick-and-place unit 2. The synchronous shaft 512 is fixedly connected to the gears 52 in the two groups of gear rack transmission units on the same side of the battery pick-and-place unit 2, so that the gears 52 located at both ends and the synchronous shaft 512 can realize coaxial rotation. The drive motor 514 is fixedly connected to the battery pick-and-place unit 2, and the drive motor 514 drives the synchronous shaft 512 to rotate to drive the two gears 52 on one side of the battery pick-and-place unit 2 to roll on the corresponding racks 53 respectively, so that the synchronous shaft 512 drives one side of the battery pick-and-place unit 2 to perform lifting and lowering movements. That is, in this embodiment, by separately controlling the two drive motors 514 installed on the battery pick-and-place unit 2, it can be ensured that the four ends of the battery pick-and-place unit 2 are lifted and lowered in the same horizontal plane.

[0096] Under the above-mentioned structural setting, the synchronization shaft 512 enables only one drive motor 514 on one side of the battery pick-up and placement unit 2 to control the two sets of gear rack transmission units to work at the same time, so that the gear 52 on one side of the battery pick-up and placement unit 2 can be synchronously and uniformly lifted and lowered along the vertical direction along the support part. At the same time, such a structure can simplify the overall structure of the gear rack transmission unit, thereby achieving the beneficial technical effect of reducing the occupied space and reducing the manufacturing cost. In addition, the use of belt drive between the drive motor 514 and the synchronization shaft 512 can effectively reduce the precision requirements for the manufacture and installation of the drive component 51, which is beneficial to reducing the manufacturing cost and facilitating the disassembly and maintenance of the operator.

[0097] The transport body also includes an anti-fall mechanism 23, which is provided in the battery transport device 10. The purpose of providing the anti-fall mechanism 23 is to ensure the safety of the battery transport device 10 and minimize the risk of accidents when the battery transport device 10 cannot operate normally due to an emergency.

[0098] The anti-fall mechanism 23 is connected to the transmission unit 5. In this embodiment, the anti-fall mechanism 23 is preferably connected to both ends of the synchronous shaft 512. The anti-fall mechanism 23 has a first state and a second state. The first state is when an emergency occurs in the transmission unit 5, such as when the synchronous belt 513 breaks. The anti-fall mechanism 23 ensures that the entire battery transport device 10 is maintained in a safe state (see Fig. 22 ); The second state is when the entire battery transport device 10 is in a normal working state and is kept away from the synchronous shaft 512 (see Fig.21 ).

[0099] Therefore, the working principle of the anti-fall mechanism 23 is as follows: when the transmission unit 5 is operating normally, the anti-fall mechanism 23 is in the second state, and the anti-fall mechanism 23 is kept relatively far away from the synchronous shaft 512 of the transmission unit 5 to prevent the anti-fall mechanism 23 from affecting the transmission unit 5 driving the battery pick-up and placement unit 2 to rise and fall; and in special circumstances (i.e. when the synchronous belt 513 breaks), the anti-fall mechanism 23 limits the rotation of the synchronous shaft 512 by engaging with the synchronous shaft 512, and the anti-fall mechanism 23 switches from the second state to the first state, limiting the position of the battery pick-up and placement unit 2, and no large-scale lifting and lowering will occur, achieving the purpose of anti-falling, and ensuring that the pick-up and placement unit is in a safe state under normal working conditions. The switching of the two states of the anti-fall mechanism 23, i.e., different matching states, jointly ensures the normal operation of the battery transport equipment 10.

[0100] The specific structure of the anti-falling mechanism 23 of this embodiment is as follows: Fig.23 As shown, the anti-fall mechanism 23 includes a limit rod 231, one end of which is pivotally connected to the side position of the battery pick-and-place unit 2 and is located below the synchronous shaft 512, and the other end is positioned on the synchronous belt 513 through a roller to limit the position of the limit rod 231 through the synchronous belt 513. In this embodiment, the structure for the limit rod 231 to be pivotally connected on the side of the battery pick-and-place unit 2 is provided by a fixing seat 232 fixed on the frame of the battery pick-and-place unit 2, and one end of the limit rod 231 is movably connected to the fixing seat 232 to enable the other end of the limit rod 231 to move along the fixing seat 232 with the connection point with the fixing seat 232 as the base point. Fig.23 The limiting rod 231 is switched between the first state and the second state by the swinging motion in the direction indicated by the middle arrow. In this motion mode, the motion path of the limiting rod 231 is simple, which is conducive to improving the operational reliability of the anti-falling mechanism 23.

[0101] Specifically, the limit rod 231 is provided with meshing teeth 2311 for engaging the synchronous shaft 512 on the side surface facing the synchronous shaft 512. When the synchronous belt 513 is in normal operation, due to the contact and limit relationship between the roller at the end of the limit rod 231 and the synchronous belt 513, the meshing teeth 2311 on the limit rod 231 are far away from the synchronous shaft 512, thereby avoiding affecting the normal rotation of the synchronous shaft 512; when the synchronous belt 513 is in an abnormal operation state (such as breakage), the synchronous belt 513 cannot limit the limit rod 231 through the roller, so that the limit rod 231 flips toward the direction close to the synchronous shaft 512, so that the meshing teeth 2311 are engaged with the synchronous shaft 512, so as to prevent the synchronous shaft 512 from further rotating, thereby achieving the purpose of preventing falling.

[0102] In this embodiment, when the limiting rod 231 is moved along Fig. 22When the direction indicated by the middle arrow switches from the second state to the first state, the meshing teeth 2311 on the limit rod 231 are engaged with the engaging wheel 512c fixed on the surface of the synchronization shaft 512, so as to achieve the function of limiting and fixing the synchronization shaft 512 to continue rotating, enhance the coordination effect between the synchronization shaft 512 and the limit rod 231, and realize the anti-falling measure of the anti-falling mechanism 23. By arranging the engaging wheel 512c on the surface of the synchronization shaft 512 to achieve engagement with the relative limit rod 231, it is also possible to avoid damage to the surface of the synchronization shaft 512 caused by meshing, which is beneficial to the long-term operation of the synchronization shaft 512.

[0103] like Fig.21 As shown, the anti-fall mechanism 23 in this embodiment also includes an elastic member 233, one end of the elastic member 233 is connected to the limit rod 231 and the other end is fixedly connected to the battery access unit 2, and the elastic member 233 is used to apply a force to the limit rod 231 to switch it to the first state. Among them, the elastic member 233 shown in Figure 15 is only used to illustrate the preferred setting position of the elastic member 233 and the connection relationship with the limit rod 231. The elastic member 233 can specifically adopt all components that can generate elasticity in the prior art to keep applying a force to the limit rod 231 to switch it to the first state.

[0104] In this embodiment, the elastic member 233 is preferably a coil spring. The elastic member 233 is provided to apply a force to the limit rod 231. No matter what state the anti-fall mechanism 23 is in, the force of the elastic member 233 makes the limit rod 231 always in a high position and bounced up state. After the synchronous belt 513 breaks accidentally, the force applied by the elastic member 233 enables the limit rod 231 to switch to the first state more quickly, and then quickly realize the engagement and fixation of the synchronous shaft 512, thereby enhancing the anti-fall efficiency of the limit rod 231 and making the anti-fall reaction speed of the anti-fall mechanism 23 fast.

[0105] The preferred setting range of the elastic member 233 is as follows: within the angle formed by the limit rod 231 and the battery pick-and-place unit 2, and its installation position can be set at any position of the angle as required. In this embodiment, the elastic member 233 is set at the farthest position from the connection between the limit rod 231 and the fixing seat 232, that is, one end of the elastic member 233 is set at the farthest end of the limit rod 231 away from the fixing seat 232, and the other end of the elastic member 233 is set on the battery pick-and-place unit 2 at a corresponding distance from the fixing seat 232.

[0106] In addition, if Fig.24 and Fig.25As shown, the transmission unit 5 also includes an anti-tooth disengagement assembly 54, which includes a plurality of back wheel groups 541. The plurality of back wheel groups 541 are respectively arranged corresponding to the rack and pinion transmission units and are fixed at preset positions of the battery placement unit 2 to position the gear 52 in each group of rack and pinion transmission units relative to the rack 53.

[0107] The rack 53 in the gear rack transmission unit is fixedly connected to the column 111 of the supporting frame 11, and the gear 52 is coaxially fixedly connected to the end of the synchronous shaft 512. The driving motor 514 drives the synchronous shaft 512 to rotate so that the gear 52 rolls on the rack 53. In order to ensure that the gear 52 and the rack 53 always have a good meshing effect during the rolling process of the gear 52 on the rack 53, an anti-slipping tooth component 54 is also installed at the end of the synchronous shaft 512. The anti-slipping tooth component 54 is provided with a plurality of back wheel groups 541, and each back wheel group 541 respectively abuts against different wall surfaces on the rack 53 to constrain the gear 52 in different directions relative to the rack 53. The anti-slipping tooth component 54 of the transmission unit 5 is achieved by setting the back wheel group 541 at the position corresponding to each gear rack transmission unit, thereby limiting the position of the gear 52 relative to the rack 53, thereby improving the transmission effect and operation stability of the gear rack transmission unit.

[0108] The back wheel group 541 of the anti-slip assembly 54 is provided with a back wheel 5411 located on the back of the rack 53, and the two back wheels 5411 in the back wheel group 541 are used to limit the gear 52 in the vertical direction and the horizontal direction relative to the tooth surface of the rack 53, so as to ensure that the gear 52 can be meshed on the tooth surface and will not be disengaged from the vertical direction and the horizontal direction, so that the gear 52 can maintain a stable meshing with the rack 53, and the transmission is more stable. Among them, the battery pick-up and placement unit 2 is clamped on the rack 53 from three directions by the gear 52 and the two back wheels 5411 of the back wheel group 541, which can also reduce the stress on the gear 52 and make the gear 52 less likely to be damaged. Compared with the back wheel 5411 of the back wheel group 541 limiting from other directions, changing the limiting from the other side of the gear 52 relative to the rack 53 to limiting from the back and side respectively also reduces the volume of the battery transport equipment 10, reduces the occupied space, and reduces the cost of the battery swap station 100.

[0109] like Fig.25 As shown, in a plane perpendicular to the axis of the rack 53, two back wheels 5411 for limiting the vertical and horizontal directions of the gear 52 relative to the tooth surface of the rack 53 form a back wheel group 541. Fig.24As shown, in this embodiment, a back wheel group 541 is installed on the upper and lower sides of the contact position of the gear 52 and the rack 53, respectively, and these two groups of back wheel groups 541 form an anti-slipping tooth assembly 54. That is to say, the anti-slipping tooth assembly 54 corresponds to a transmission unit 5 composed of a gear 52 and a rack 53 and is equipped with four back wheels 5411 to keep the gear 52 meshing with the rack 53. When the gear 52 rolls up or down on the rack 53, the forces on the upper and lower sides of the meshing position of the gear 52 and the rack 53 are balanced with each other, which is conducive to ensuring that the stress distribution when the gear 52 and the rack 53 are always consistent, and is conducive to improving the service life of the gear 52 and the rack 53. At the same time, such a design, relative to the battery pick-up and placement unit 2, enables the upper and lower sides of the battery pick-up and placement unit 2 to be supported by back wheels 5411 in the vertical direction, which is conducive to making the battery pick-up and placement unit 2 run more smoothly during the lifting process, so as to ensure the operating stability of the battery swap station 100 and reduce abnormal noises during operation.

[0110] Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that this is only for illustration and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A structurally stable battery swap station, comprising a battery rack having a plurality of battery compartments for storing battery packs and a battery transfer device for transferring batteries between the battery compartments, characterized in that: The battery transport equipment has a mounting portion for mounting a transport body, and the mounting portion includes a support frame having four columns, and the bottom and top surface of the support frame are respectively fixedly connected to the bottom and / or top of the battery swap station.

2. The structurally stable battery swap station according to claim 1, characterized in that: The top of the support frame is fixed to the top of the battery swap station as an integrated structure through a top surface connection unit; And / or, the bottom of the support frame is fixed to the bottom of the battery swap station as an integrated structure via a bottom surface connection unit.

3. The structurally stable battery swap station according to claim 2, characterized in that: The bottom surface connection unit includes a connection base, which is covered on the bottom surface of the battery swap station. The connection base is provided with a first mounting hole, and the connection base is connected to the bottom surface of the battery swap station through the first mounting hole, and the four columns of the support frame are all fixed to the surface of the connection base; and / or, the top surface connection unit has a second mounting hole for connecting to the top frame of the battery swap station, and the position of the second mounting hole along the height direction is adjustable.

4. The structurally stable battery swap station according to claim 1, characterized in that: The battery transfer equipment is located between the battery rack and the corresponding side wall of the battery swap station, and the mounting portion is also fixed to the battery rack as an integrated structure.

5. The structurally stable battery swap station according to claim 4, characterized in that: The two uprights in the support frame close to the side wall of the battery swap station are fixedly connected to the battery rack through a first connecting unit; And / or, the two columns in the support frame arranged close to the battery rack are fixedly connected to the side frame of the battery swap station through a second connecting unit.

6. The structurally stable battery swap station according to claim 5, characterized in that: The column comprises: A steel member, wherein the steel member extends in a vertical direction, the cross section of the steel member is U-shaped, and one side of the U-shaped notch of the steel member faces the first connecting unit or the second connecting unit; A connecting plate, two ends of which are respectively overlapped on two ends of the U-shape of the steel member, and an outer surface of the connecting plate is used for connection with the first connecting unit or the second connecting unit.

7. The structurally stable battery swap station according to claim 1, characterized in that: The transfer main body comprises: A battery access unit disposed between the four columns and capable of being lifted and moved; A plurality of transmission units driving the battery pick-and-place unit to move up and down, and A driving unit is used to provide power to the transmission unit.

8. The structurally stable battery swap station according to claim 7, characterized in that: The transmission units are arranged corresponding to the columns, and each of the transmission units includes a rack fixed on the corresponding column, and a gear arranged at a preset position of the battery pick-and-place unit and meshing with the rack. The driving unit drives the gear to rotate to drive the battery pick-and-place unit to achieve lifting and moving; Preferably, the number of the transmission units is four, which are respectively arranged at the end angle positions on both sides of the battery pick-and-place unit, and the driving unit includes two driving assemblies, which are respectively arranged on both sides of the battery pick-and-place unit.

9. The structurally stable battery swap station according to claim 8, characterized in that: Each of the driving components includes a driving motor, a synchronous shaft respectively connected to the gears of the transmission unit at both ends, a driving wheel and a driven wheel respectively sleeved on the output shaft of the driving motor and the synchronous shaft, and a synchronous belt transmitting between the driving wheel and the driven wheel.

10. The structurally stable battery swap station according to claim 9, characterized in that: The transport body also includes: an anti-falling mechanism, the anti-falling mechanism has a first state and a second state, in the first state, the anti-falling mechanism is engaged with the synchronization shaft to limit the battery access unit; in the second state, the anti-falling mechanism is away from the synchronization shaft, and the synchronization shaft rotates normally; and / or, The transmission unit also includes an anti-slipping tooth assembly, which includes a plurality of back wheel groups. The plurality of back wheel groups are respectively arranged corresponding to the transmission units and fixed at preset positions of the battery loading and unloading unit to locate the position of the gear in each transmission unit relative to the rack.

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