Battery swapping device and battery swapping station comprising same

Abstract

The application discloses a battery replacing device and a battery replacing station comprising the same. The battery replacing device comprises a device frame, a lifting platform and two lifting devices. The lifting platform is connected to the device frame in a lifting manner. The two lifting devices are arranged on the device frame and are respectively located at two opposite sides of the lifting platform. Each lifting device is connected to the corresponding side of the lifting platform and drives the lifting platform to lift through synchronous action. The lifting platform is used for placing a battery pack. Through the battery replacing device and the battery replacing station comprising the same, the two lifting devices on the two sides can independently operate. The transmission mechanism on the two sides without the lifting devices is omitted. The structure of the two sides of the battery replacing device without the lifting devices is less. The height of the device frame on the two sides can be greatly reduced. Therefore, the movement of the battery pack in the corresponding direction is facilitated and / or the battery pack is transferred from the corresponding direction by the handling equipment, such as a stacking machine of the battery replacing station or a forklift used in an emergency outside the station.

Description

Technical Field

[0001] This invention relates to the field of vehicle battery swapping, and particularly to a battery swapping device and a battery swapping station including the same. Background Technology

[0002] The installation of batteries in existing electric vehicles is generally divided into fixed and swappable types. For swappable batteries, a movable installation method is generally used, which allows the battery to be removed at any time for replacement or charging, and then installed back onto the vehicle body after replacement or charging is completed.

[0003] Existing automated battery swapping equipment is quite tall and has a loose structure, which requires deep recesses on the battery swapping platform to allow the equipment to enter the bottom of the electric vehicle. This significantly increases the construction cost of the battery swapping station. Furthermore, the need to create recesses raises the overall height of the battery swapping platform, increasing the height of the ramps connecting to the platform and reducing the passability of the vehicle.

[0004] Currently, the various transmission structures used in battery swapping equipment are complex and have large spans, resulting in these devices occupying a large space and being prone to interference. Therefore, reducing the height of the battery swapping equipment itself, lowering the height requirements for battery swapping operations, and minimizing the space it occupies have become key research and development priorities for designers. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome at least one of the problems of the complex structure of various transmission structures used in the prior art of power swapping equipment, which leads to the large space occupied by power swapping equipment using such transmission structures and easy interference, and to provide a power swapping equipment and a power swapping station including the same.

[0006] The present invention solves the above-mentioned technical problems through the following technical solution:

[0007] A battery swapping device is characterized in that it includes a device frame, a lifting platform, and two lifting devices. The lifting platform is vertically connected to the device frame. The two lifting devices are disposed on the device frame and located on opposite sides of the lifting platform. Each lifting device is connected to a corresponding side of the lifting platform and drives the lifting platform to rise and fall through synchronous action. The lifting platform is used to hold a battery pack.

[0008] In this solution, the above-mentioned structure is adopted. The battery swapping equipment includes two lifting devices arranged opposite each other, and the two lifting devices are respectively connected to the lifting platform. The lifting devices on both sides can operate independently, eliminating the transmission mechanism on the two sides where there are no lifting devices. This can significantly reduce the height of the equipment frame on these two sides, thereby facilitating the movement of the battery pack in the corresponding direction and / or facilitating the transfer of the battery pack from the corresponding direction by handling equipment, such as the palletizer of the battery swapping station or the forklift used for emergency purposes outside the station.

[0009] Preferably, the device frame has a receiving space with an opening facing the battery pack, and the lifting platform is disposed within the receiving space.

[0010] In this solution, the above structure is adopted. By setting up a storage space within the equipment frame, the lifting platform is located within the storage space within the equipment frame. Compared with setting the lifting platform at a height that can effectively reduce the height of the lifting platform, the height of the entire battery swapping equipment can be controlled, making the battery swapping equipment more compact in height.

[0011] Preferably, the equipment frame has two longitudinal beams arranged opposite each other and a crossbeam spaced between the two longitudinal beams, the crossbeams and the longitudinal beams enclosing the receiving space, and two lifting devices are respectively arranged on the two crossbeams.

[0012] In this design, the aforementioned structure is used, with the lifting platform positioned within the space enclosed by the crossbeams and longitudinal beams. This results in a more compact structure and helps reduce the overall height of the battery swapping equipment. Positioning the two lifting devices on the two crossbeams respectively facilitates a reduction in the height of the longitudinal beam between them. It also allows for modular assembly of the battery swapping equipment (for example, the lifting devices can be pre-installed on the crossbeams to form crossbeam modules with lifting devices, and then the crossbeam modules and longitudinal beams can be assembled, significantly improving assembly efficiency).

[0013] Preferably, the two longitudinal beams extend along the traveling direction of the power swapping equipment;

[0014] And / or, the power swapping equipment also has a traveling mechanism distributed on the two longitudinal beams and located on the outside of the two transverse beams.

[0015] In this solution, the above structure is adopted. The lifting device is installed on the crossbeam, and the traveling mechanism is installed on the longitudinal beam. This allows the traveling mechanism to not interfere with the lifting device, resulting in a more reasonable layout and greater space saving.

[0016] Preferably, when the lifting platform is lowered to its original position, the placement surface of the lifting platform for placing the battery pack is lower than the end face of the accommodating space facing the battery pack.

[0017] When the battery pack is placed on the lifting platform, along the lifting direction of the lifting platform, the projection of the battery pack on the battery swapping equipment is within the area surrounded by the accommodating space.

[0018] In this solution, the aforementioned structure allows the accommodating space to also accommodate at least a portion of the battery pack in the height direction when the lifting platform is lowered to its original position. This reduces the height of the battery pack during the battery swapping process, making it easier to adapt to chassis-based battery swapping systems in vehicles with lower chassis heights. Furthermore, the structure lowers the center of gravity of the battery swapping equipment during movement, resulting in a more stable battery pack movement.

[0019] Preferably, the equipment frame has a recessed portion with an opening facing the lifting direction of the lifting platform. The recessed portion is connected to the receiving space and is used to extend the transport equipment into the receiving space to transfer the battery pack. The lower edge of the recessed portion is lower than the placement surface of the lifting platform used to place the battery pack.

[0020] In this solution, the above-mentioned structure is adopted, and the equipment frame has a recessed part, which allows the battery pack to be directly and horizontally placed into or removed from the equipment frame's accommodating space from the side, eliminating the need to work from above the battery swapping equipment, reducing the required working height, and saving more space.

[0021] Preferably, the recess and the lifting device are located on different sides of the lifting platform.

[0022] In this solution, the above-mentioned structure is adopted, and the lifting devices are all set on the crossbeams. There is no need to set the transmission structure on the longitudinal beams, which allows the longitudinal beams to be grooved to form recesses for avoidance. The layout is reasonable, and the height required for battery loading and unloading is reduced through the recesses, thereby reducing the height of the battery swapping equipment and saving more space.

[0023] Preferably, a battery pack transfer channel is formed on the lifting platform, the battery pack transfer channel extends from the placement surface of the lifting platform for placing the battery pack in a direction away from the battery pack, and the end of the battery pack transfer channel communicates with the outside of the battery swapping equipment via the recess.

[0024] In this solution, the aforementioned structure is used, where the battery pack transfer channel extends beneath the battery to facilitate the movement of the battery pack from the lifting platform into the receiving space or vice versa. This makes the operation of the battery pack transfer equipment easier.

[0025] Preferably, the lifting platform has a platform base and a tray and an auxiliary support mechanism disposed on the platform base. The auxiliary support mechanism is spaced apart from the tray, and the space between the auxiliary support mechanism and the tray forms the battery pack transfer channel.

[0026] In this solution, the above structure is adopted, and the battery pack transfer channel is formed between the tray and the auxiliary support mechanism, without the need for other mechanisms. This ensures the stability of the battery pack support while making the structure more compact.

[0027] Preferably, the lifting device includes a power unit, a first transmission unit, a second transmission unit, and an execution unit connected in sequence:

[0028] The power unit is used to output the first rotational motion;

[0029] The first transmission unit is used to convert the first rotational motion into linear motion;

[0030] The second transmission unit is used to convert the linear motion into a second rotational motion and drive the execution unit to rotate synchronously, so as to drive the lifting platform to rise and fall.

[0031] In this solution, the aforementioned structural form is adopted. The first rotational motion of the power unit is converted into the second rotational motion of the execution unit via the first and second transmission units. This eliminates the need for the power unit to be directly facing the lifting platform, making the structural layout of the power swapping equipment more convenient and compact. Furthermore, by converting the rotational motion into linear motion via the first transmission unit, the first transmission unit and the power unit can be arranged along a straight line, further enhancing the compactness of the structure.

[0032] Preferably, the rotation axis of the first rotational motion and the direction of the linear motion both extend along one side of the lifting platform, and the rotation axis of the second rotational motion points towards the lifting platform.

[0033] In this solution, the above structure is adopted, and the first rotational motion of the power unit is converted into the second rotational motion of the execution unit with the rotation axis direction specified as the lifting platform through the first transmission unit and the second transmission unit. This makes the power unit not need to be directly facing the lifting platform, making the structural layout of the power swapping equipment more flexible. At the same time, the first transmission unit and the second transmission unit can extend in the same direction, which can also make them more compact and avoid interference with the structure of the power swapping equipment in other directions.

[0034] Preferably, the first transmission unit includes a first rotating component and a connecting portion for transmission connection, and the second transmission unit includes a mating portion and a second rotating component for transmission connection;

[0035] The first rotating component is connected to the power unit for transmission, and performs a first rotational motion under the drive of the power unit, and drives the connecting part to perform linear motion;

[0036] The connecting part is connected to the mating part, which drives the mating part to make linear motion and drives the second rotating part to make a second rotational motion;

[0037] The execution unit is connected to the second rotating component and rotates synchronously with the second rotating component.

[0038] In this solution, the above-mentioned structural form is adopted. By setting a connecting part and a mating part that are linked to each other and can move linearly synchronously in the first transmission unit and the second transmission unit respectively, and connecting them to the first rotating part and the second rotating part that are performing the first rotational motion, the conversion from the first rotational motion to the second rotational motion is realized, which is more convenient and simple.

[0039] Preferably, the lifting device is mounted on the equipment frame via a connecting beam located on the side of the equipment frame facing the lifting platform. The power unit and the first rotating component of the first transmission unit are mounted on the connecting beam on the side away from the lifting platform. The second transmission unit and the execution unit are mounted on the connecting beam on the side facing the lifting platform. The connecting beam has a through-hole for connecting the first transmission unit and the second transmission unit. The connecting part of the first transmission unit passes through the through-hole and connects with the mating part.

[0040] In this solution, by adopting the above-mentioned structural form and setting the first transmission unit and the second transmission unit on the two sides of the connecting beam, mutual interference between components can be avoided, the two sides of the connecting beam can be fully utilized, making the structure more compact and ensuring that the extension directions of the two are consistent. The connecting part and the mating part are connected through the through-hole, which also avoids occupying additional space of the connecting beam in terms of height.

[0041] Preferably, the connecting beam is the crossbeam of the equipment frame.

[0042] In this solution, the above-mentioned structural form can improve the level of integration and modularity.

[0043] Preferably, the mating part has a mating part body and a positioning structure formed on the surface of the mating part body and protruding or recessing along a direction different from the linear movement direction;

[0044] The connecting part can contact the positioning structure along the linear motion direction, and / or the connecting part can be clearance-fitted with the positioning structure in a direction perpendicular to the linear motion direction.

[0045] In this solution, the aforementioned structural form is adopted. This concave-convex structure is only limited to the upper limit in the direction of motion. The connecting part moves linearly under the action of the first rotating component, and the mating part forms a positioning structure through the design of a protruding or concave structure, so that the connecting part can contact the positioning structure and is located at the upper limit of the positioning structure in the direction of linear motion. Thus, when the connecting part moves linearly, the mating part can also move linearly synchronously.

[0046] Preferably, the second transmission unit further includes a flexible element, which is connected to the second rotating element to form a flexible transmission mechanism. The mating part is disposed on the flexible element, and the mating part is connected to the second rotating element through the flexible element.

[0047] And / or, the second rotating component is a transmission wheel, which is rotatably connected to the connecting beam.

[0048] In this solution, the above structure is adopted. By setting a flexible component to connect the mating part and the second rotating component, the motion of the mating part is converted into the motion of the flexible component and then into the rotation of the second rotating component. The transmission effect is good and the transmission strength is high.

[0049] Preferably, the flexible member has an opening between the second rotating members, the mating part is itself extendable and retractable, the extension and retraction direction is along the linear motion direction, and the two ends of the mating part along its own extension and retraction direction are respectively connected to the two ends of the opening on the flexible member, and the mating part body adjusts the tension of the flexible member by its own extension and retraction.

[0050] In this design, the aforementioned structure is used, with the mating part embedded within the flexible component, enclosing the flexible component and ensuring a tight connection, resulting in better transmission performance. The mating part can extend and retract along the linear motion direction, ensuring the flexible component remains taut through this extension and retraction.

[0051] Preferably, the mating part includes a mating part body and a tension adjustment structure. The mating part body includes a rod and two adjusting members. The length extension direction of the rod forms the extension and retraction direction of the mating part body itself. The two adjusting members are connected to the rod by reverse threads and are spaced apart to form the two ends of the adjustment assembly along its own extension and retraction direction. The distance between the two adjusting members is adjusted by driving the rod to rotate, thereby realizing the extension and retraction of the adjustment assembly. The tension adjustment structure is disposed on the surface of the part of the rod that is exposed above the two adjusting members.

[0052] In this solution, the above structure is adopted, and the tension of the flexible component is adjusted by adjusting the extension and contraction of the component itself. This makes the structure of the adjustment component compact, does not occupy additional space other than the flexible component, and the flexible component will not come into contact with other structures of the power swapping equipment, thus avoiding interference with the movement of the flexible component.

[0053] Preferably, the first transmission unit further includes a sliding member, which is movable relative to the connecting beam in the linear motion direction. The connecting part is disposed on the sliding member and moves with the sliding member. The first rotating member is connected to the connecting part through the sliding member.

[0054] And / or, the first rotating component is a lead screw, and the lead screw and the sliding component form a lead screw pair.

[0055] In this solution, the above-mentioned structure is adopted, and a lead screw pair structure is used to connect with the power unit for transmission. This allows the power unit to achieve the linear motion of the first transmission unit simply by rotating. In this process, the lead screw reduces the speed of the rotational motion of the power unit when it is converted into the linear motion of the sliding part, thereby controlling the lifting speed of the lifting platform.

[0056] Preferably, the power unit includes a motor, which is mounted on the connecting beam; more preferably, the motor is a servo motor.

[0057] And / or, the actuator includes a cam having an extension toward the lifting platform, the extension extending into a groove on the lifting platform and being slidable within the groove.

[0058] In this solution, the aforementioned structure utilizes a high-precision servo motor capable of accurately driving the cam to its designated position for precise lifting. The execution unit includes a cam with an extension that engages with a groove on the lifting platform. The extension is located at the convex end of the cam and is engaged in the horizontally positioned groove. When the cam rotates, the horizontal movement of the cam's convex end is converted into movement of the extension within the groove, thus preventing it from impacting the lifting platform. This ensures the lifting platform is only subjected to the vertical force of the cam. Ultimately, this prevents horizontal movement of the lifting platform, improving the lifting efficiency.

[0059] Preferably, the battery swapping equipment further includes a guiding mechanism connected between the equipment frame and the lifting platform, for guiding the lifting platform to rise and fall.

[0060] In this design, the aforementioned structure connects the two lifting devices to the lifting platform, enabling independent operation of each device. This eliminates the need for a transmission mechanism connecting both sides of the lifting platform, resulting in fewer structural elements on the sides of the battery swapping equipment that do not have lifting devices. This facilitates the installation of the walking mechanism and the loading and unloading of batteries from these sides. It also makes the battery swapping equipment more compact.

[0061] A battery swapping station characterized in that it includes the battery swapping equipment described above.

[0062] In this solution, the above-mentioned structure is adopted, and the battery swapping station can not only swap batteries for passenger cars, but also adapt to battery swapping for light trucks, heavy trucks and other engineering vehicles, especially light trucks with a relatively low chassis height compared to heavy trucks.

[0063] The positive and progressive effects of this invention are as follows: This invention discloses a battery swapping device and a battery swapping station including the same. The battery swapping device includes two opposing lifting devices, each connected to a lifting platform. The lifting devices on both sides can operate independently, eliminating the need for transmission mechanisms on the sides without lifting devices. This significantly reduces the height of the equipment frame on these two sides, thereby facilitating the movement of the battery pack in the corresponding direction and / or facilitating the transfer of the battery pack from the corresponding direction by handling equipment, such as a palletizer at the battery swapping station or a forklift for emergency use outside the station. Attached Figure Description

[0064] Figure 1 This is a schematic diagram of the structure of the battery swapping equipment according to an embodiment of the present invention.

[0065] Figure 2 This is a top view of the battery swapping equipment according to an embodiment of the present invention.

[0066] Figure 3 This is a partial structural diagram of the bottom surface of the battery swapping device according to an embodiment of the present invention.

[0067] Figure 4 This is a schematic diagram of the recessed portion at the longitudinal beam of the battery swapping equipment according to an embodiment of the present invention.

[0068] Figure 5 This is a partial structural schematic diagram of the battery swapping equipment according to an embodiment of the present invention.

[0069] Figure 6 This is a schematic diagram of the structure of the first transmission unit of the lifting mechanism according to an embodiment of the present invention.

[0070] Figure 7 This is a schematic diagram of the structure of the second transmission unit of the lifting mechanism in an embodiment of the present invention.

[0071] Figure 8 This is a schematic diagram of the connecting part and the mating part according to an embodiment of the present invention.

[0072] Figure 9 This is a schematic diagram of the structure of the slider and the connecting part according to an embodiment of the present invention.

[0073] Figure 10 This is a schematic diagram of the structure of the flexible component according to an embodiment of the present invention.

[0074] Figure 11 This is a schematic diagram of the mating part according to an embodiment of the present invention.

[0075] Figure 12 This is a schematic diagram of the structure of the mating part body according to an embodiment of the present invention.

[0076] Figure 13 This is a schematic diagram of the structure of the execution unit in an embodiment of the present invention.

[0077] Figure 14 This is a schematic diagram of the cam structure according to an embodiment of the present invention.

[0078] Figure 15 This is a schematic diagram of the guiding mechanism according to an embodiment of the present invention.

[0079] Figure 16 for Figure 15 Enlarged image.

[0080] Explanation of reference numerals in the attached figures:

[0081] 1000 battery swapping devices

[0082] Lifting device 100

[0083] Power Unit 101

[0084] First transmission unit 110

[0085] First rotating component 111

[0086] Slider 112

[0087] Connecting part 113

[0088] Guide rail 114

[0089] Groove 115

[0090] Reinforcing component 1151

[0091] Second transmission unit 120

[0092] Coordination Department 121

[0093] Body 1211

[0094] Positioning structure 1212

[0095] Tension adjustment structure 1213

[0096] Adjusting component 1214

[0097] Locking component 1215

[0098] Connection hole 1216

[0099] Second rotating component 122

[0100] Flexible component 123

[0101] Opening 1231

[0102] First coordination section 1232

[0103] Second coordination section 1233

[0104] Execution Unit 130

[0105] Cam 131

[0106] Protrusion 132

[0107] Slide 133

[0108] Walking frame 200

[0109] 210 crossbeam

[0110] Through-pass 211

[0111] Longitudinal beam 220

[0112] Recess 221

[0113] Capacity 230

[0114] outer space 240

[0115] Lifting Platform 300

[0116] Platform base 310

[0117] Pallet 320

[0118] Auxiliary support mechanism 330

[0119] Battery pack transfer channel 340

[0120] Guiding mechanism 400

[0121] Sliding groove 401

[0122] Slider 402

[0123] Walking mechanism 500

[0124] 510 walking motor

[0125] 520 walking wheels

[0126] Auxiliary guide wheel 530

[0127] Linear motion A

[0128] First rotational motion B

[0129] Second rotational motion C Detailed Implementation

[0130] 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 described herein.

[0131] This embodiment provides a battery swapping device 1000, which is installed within a battery swapping station. It moves between the battery compartment and the electric vehicle within the station and is responsible for removing batteries from the electric vehicle and transporting them to the battery compartment, or removing batteries from the battery compartment and installing them onto the electric vehicle. During battery swapping, the device 1000 moves directly beneath the electric vehicle and is lifted to the chassis position via a liftable platform 300. It then completes the removal and installation of the battery pack. This battery swapping device 1000 can not only swap batteries for passenger vehicles but also for light trucks, heavy trucks, and other engineering vehicles, especially light trucks with a relatively low chassis height compared to heavy trucks.

[0132] Because light trucks and heavy trucks are larger and heavier than other electric vehicles such as cars, their energy requirements are also greater. Therefore, the battery packs for light trucks and heavy trucks are larger and heavier than those for cars. Since the space under electric vehicles is limited, the battery swapping equipment 1000 structure, especially the lifting device 100, is more compact and stronger to allow space for the battery pack.

[0133] like Figure 1 As shown, the battery swapping equipment 1000 includes an equipment frame 200, a lifting platform 300, and two lifting devices 100. The lifting platform 300 is vertically connected to the equipment frame 200. The two lifting devices 100 are mounted on the equipment frame 200 and are located on opposite sides of the lifting platform 300. Each lifting device 100 is connected to the corresponding side of the lifting platform 300 and drives the lifting platform 300 to rise and fall through synchronous operation. The lifting platform 300 is used to hold the battery pack.

[0134] In this embodiment, the equipment frame 200 serves as the main body supporting the various mechanisms of the battery swapping equipment 1000. The walking frame and the lifting platform 300, which support its walking function, are both located within the equipment frame 200. The battery swapping equipment 1000 in this embodiment differs from other existing battery swapping equipment 1000s in the way the lifting device 100 is arranged.

[0135] In this embodiment, the battery swapping equipment 1000 includes two opposing lifting devices 100, and the two lifting devices 100 are respectively connected to the lifting platform 300. The lifting devices 100 on both sides can operate independently, eliminating the need for the transmission mechanism on the two sides where there are no lifting devices 100. This can significantly reduce the height of the equipment frame 200 on these two sides, thereby facilitating the movement of the battery pack in the corresponding direction and / or facilitating the transfer of the battery pack from the corresponding direction by handling equipment, such as the palletizer of the battery swapping station or the forklift used for emergency purposes outside the station.

[0136] like Figure 2As shown, the equipment frame 200 has a housing space 230, the opening of which faces the battery pack (the opening faces upward in the chassis-type battery swapping mode), and the lifting platform 300 is disposed within the housing space 230.

[0137] In this embodiment, the middle of the equipment frame 200 is recessed to form a receiving space 230. The top of the receiving space 230 is open. The lifting platform 300 is set inside the receiving space 230. When it is in the original position, its height is lower than the height of the non-recessed part of the periphery of the equipment frame 200, so that when the lifting platform 300 is in the original position, the battery pack can be placed at a lower height.

[0138] The lifting platform 300 is located within the accommodating space 230 of the equipment frame 200. The equipment frame 200 is open with an opening facing the battery pack, which facilitates the lifting platform 300 to be raised and lowered and to complete the installation and removal of the battery pack.

[0139] like Figures 1 to 4 As shown, the equipment frame 200 has two longitudinal beams 220 arranged opposite to each other and a crossbeam 210 spaced between the two longitudinal beams 220. The crossbeam 210 and the longitudinal beams 220 enclose a receiving space 230, and two lifting devices 100 are respectively arranged on the two crossbeams 210.

[0140] In this embodiment, the accommodating space 230 is composed of crossbeams 210 and longitudinal beams 220. Two lifting devices 100 are mounted on the two crossbeams 210, while the longitudinal beams 220 do not have lifting devices 100 or transmission devices, allowing them to be designed to be lower. Furthermore, in this embodiment, the longitudinal beams 220 are slightly longer than the crossbeams 210. The ends of the crossbeams 210 are not connected to the ends of the longitudinal beams 220, but rather connected to the inward ends of the two longitudinal beams 220. The inner sides of the two longitudinal beams 220 and the two crossbeams 210 enclose a square accommodating space 230. The outer sides of the two longitudinal beams 220 and the two crossbeams 210 form two outer spaces 240 located on either side of the accommodating space 230, which can be used to accommodate other structures of the power swapping equipment 1000.

[0141] The lifting platform 300 is positioned within the space enclosed by the crossbeams 210 and the longitudinal beams 220, resulting in a more compact structure and reducing the overall height of the power swapping equipment 1000. Positioning the two lifting devices 100 on the two crossbeams 210 respectively facilitates a reduction in the height of the longitudinal beam 220 between the two crossbeams 210. It also facilitates modular assembly of the power swapping equipment 1000 (for example, the lifting devices 100 can be pre-installed on the crossbeams 210 to form a crossbeam 210 module with the lifting devices 100, and then the crossbeam 210 module and the longitudinal beam 220 can be assembled, greatly improving assembly efficiency).

[0142] like Figure 2 , 3As shown, two longitudinal beams 220 extend along the traveling direction of the power swapping equipment 1000. The power swapping equipment 1000 also has a traveling mechanism 500, which is distributed on the two longitudinal beams 220 and located on the outside of the two crossbeams 210.

[0143] In this embodiment, a lifting device 100 is provided on the crossbeam 210, and a traveling mechanism 500 is provided on the longitudinal beam 220. This allows the traveling mechanism 500 to not interfere with the lifting device 100, resulting in a more rational layout and greater space saving. Since the longitudinal beam 220 does not have a lifting device 100 and does not require a transmission structure linking the two lifting devices 100, it has greater spatial freedom. The traveling mechanism 500 is driven by a traveling motor 510 and consists of four traveling wheels 520 located at the ends of the two longitudinal beams 220. Two traveling wheels 520 on the same side of the two longitudinal beams 220 are interconnected and driven by a single traveling motor 510. The transmission rods of the traveling motor 510 and the two traveling wheels 520 are located in the outer space 240 on the same side, while the traveling wheels 520 are located in the cavities at the ends of the longitudinal beams 220.

[0144] In addition to the power-driven traveling wheels 520, the longitudinal beam 220 also has auxiliary guide wheels 530 at its ends. These auxiliary guide wheels 530 travel in the same direction as the traveling wheels 520, but are not linked and are not connected to any power source. The auxiliary guide wheels 530 have an inwardly recessed guide groove in the center, which is used to engage with the track on which the power swapping equipment travels, thus guiding the equipment's movement. The cables used by the power swapping equipment to transmit power and control signals are connected to other terminals via a cable chain extending in the same direction as the travel.

[0145] like Figure 4 As shown, when the lifting platform 300 is lowered to the original position, the placement surface of the lifting platform 300 for placing the battery pack is lower than the end face of the accommodating space 230 facing the battery pack.

[0146] When the battery pack is placed on the lifting platform 300, along the lifting direction of the lifting platform 300, the projection of the battery pack on the battery swapping equipment 1000 is within the area surrounded by the accommodating space 230.

[0147] In this embodiment, the origin point is the lowest point of the lifting platform 300. The lifting platform 300's actuator achieves lifting and lowering by rotating a cam (see below), and its origin point is when the cam's protruding end is directly below.

[0148] In this embodiment, the battery swapping equipment 1000 adopts a sunken structure, and its accommodating space 230 is formed by a recess in the middle of the equipment frame 200, ensuring that when the lifting platform 300 is at its lowest point, its height is lower than the height of the outer side of the equipment frame 200.

[0149] The accommodating space 230 is also used to accommodate at least part of the battery pack in the height direction when the lifting platform 300 is lowered to the original position, so as to reduce the height of the battery pack during the movement of the battery swapping equipment 1000.

[0150] like Figure 1 , 4 As shown, the equipment frame 200 has a recess 221 with an opening facing the lifting direction of the lifting platform 300 (upward in the chassis-type battery swapping mode). The recess 221 is connected to the receiving space 230 and is used to transport equipment into the receiving space 230 to transfer the battery pack. The lower edge of the recess 221 is lower than the placement surface of the lifting platform for placing the battery pack.

[0151] In this embodiment, the recess 221 is formed on the longitudinal beam 220. The recess 221 is formed by a downward indentation from the middle of the longitudinal beam 220. Its length corresponds to the length of the accommodating space 230 in the direction of the longitudinal beam 220, and its width is sufficient to accommodate the passage of the battery pack. In this embodiment, the recess 221 is provided on both opposing longitudinal beams 220. In other embodiments, the recess 221 may be provided on one side.

[0152] The outer side of the equipment frame 200 has a recess 221, which allows the battery pack to be directly and horizontally placed into or removed from the side into the accommodating space 230 of the equipment frame 200. This eliminates the need to work from above the battery swapping equipment, reduces the required working height, and saves more space.

[0153] The recess 221 and the lifting device 100 are located on different sides of the lifting platform 300. The lifting device 100 is mounted on the crossbeam 210, eliminating the need for a transmission structure on the longitudinal beam 220. This allows the longitudinal beam 220 to be grooved to form the recess 221 for clearance. Through the recess 221, the height required for battery loading and unloading is reduced, thus lowering the overall height of the battery swapping equipment 1000 and saving more space.

[0154] like Figure 1 , 4 As shown, a battery pack transfer channel 340 is formed on the lifting platform 300. The battery pack transfer channel 340 extends from the placement surface on the lifting platform 300 for placing the battery pack in a direction away from the battery pack. The end of the battery pack transfer channel 340 communicates with the outside of the battery swapping equipment 1000 via a recess 221.

[0155] In this embodiment, the battery pack transfer channel 340 is used for the battery pack transfer device to extend into the receiving space 230 to complete the operation of moving the battery pack from the lifting platform 300 into the receiving space 230 or pushing the battery pack into the receiving space 230. This makes the operation of the battery pack transfer device easier.

[0156] In this embodiment, there are two battery pack transfer channels 340, respectively located on both sides of the lifting platform 300. These channels allow equipment such as forklift forks to be lifted in and contact the bottom of the battery pack on the lifting platform 300 for transfer.

[0157] like Figure 1 , 4 As shown, the lifting platform 300 has a platform base 310 and a tray 320 and an auxiliary support mechanism 330 disposed on the platform base 310. The auxiliary support mechanism 330 and the tray 320 are spaced apart, and the space between the auxiliary support mechanism 330 and the tray 320 forms a battery pack transfer channel 340.

[0158] In this embodiment, the platform base 310 is located at the bottom of the lifting platform 300, and the tray 320 is located in the middle of the platform base 310 and is higher than the platform base 310. Auxiliary support mechanisms 330 are also provided on both sides of the platform base 310 to contact and support the portion of the battery pack exposed on the tray 320, making the battery pack more stable on the battery swapping equipment 1000 and less prone to shaking and displacement. Since the battery swapping equipment 1000 is used for battery swapping operations on light and heavy trucks, and the battery packs of light and heavy trucks are usually large, the tray 320 cannot fully support their bottom surface; therefore, additional auxiliary support mechanisms 330 are required for support.

[0159] The auxiliary support mechanism 330 is provided on both sides of the platform base 310, with two auxiliary support mechanisms 330 on each side, which are used to support the four corners of the battery pack.

[0160] The battery pack transfer channel 340 is formed in the gap between the auxiliary support mechanism 330 and the pallet 320. Forklift forks and other equipment can extend into the battery pack transfer channel 340 through the recess 221 to lift the battery placed on the lifting platform 300, or place the battery on the lifting platform 300 and then pull it out.

[0161] The battery pack transfer channel 340 is formed between the tray 320 and the auxiliary support mechanism 330, eliminating the need for other mechanisms and making the structure more compact.

[0162] like Figure 5 As shown, the battery swapping equipment 1000 of this embodiment has two lifting devices 100, which are respectively disposed on two opposite sides of the lifting platform 300. The two lifting devices 100 are connected to the lifting platform 300, allowing each lifting device 100 to operate independently. This eliminates the need for a transmission mechanism connecting the two sides of the lifting platform 300, resulting in fewer structural elements on the sides of the battery swapping equipment 1000 without the lifting devices 100. This facilitates the installation of the walking mechanism and the loading and unloading of batteries from these two sides. It also makes the structure of the battery swapping equipment 1000 more compact.

[0163] like Figure 6 , 7 As shown, the lifting device 100 of this embodiment is used to be installed on the battery swapping equipment 1000 to drive the lifting platform 300 to rise and fall. The lifting platform 300 is used to hold the battery pack. The lifting device 100 is characterized by including a power unit 101, a first transmission unit 110, a second transmission unit 120, and an execution unit 130 connected in sequence. The power unit 101 outputs a first rotational motion B. The first transmission unit 110 converts the first rotational motion B into a linear motion A. The second transmission unit 120 converts the linear motion A into a second rotational motion C and drives the execution unit 130 to rotate synchronously, thereby driving the lifting platform 300 to rise and fall.

[0164] In this embodiment, the first rotational motion B output by the power unit 101 is not in the same direction as the second rotational motion C of the execution unit 130. Therefore, in order to realize the lifting and lowering of the lifting platform 300, the first transmission unit 110 and the second transmission unit 120 are set to transmit power to it and change the direction of motion.

[0165] The power unit 101 is not positioned directly opposite the lifting platform 300, which makes the structural layout of the power swapping equipment 1000 more convenient and compact. Furthermore, the rotational motion is converted into linear motion A by the first transmission unit 110, and the first transmission unit 110 and the power unit 101 can be arranged along a straight line, making the structure even more compact.

[0166] like Figure 6 As shown, the rotation axis of the first rotational motion B and the motion direction of the linear motion A both extend along one side of the lifting platform 300, while the rotation axis of the second rotational motion C points towards the lifting platform 300.

[0167] The first rotational motion B of the power unit 101 is converted into the second rotational motion C of the execution unit 130 with the rotation axis direction specified as the lifting platform 300 by the first transmission unit 110 and the second transmission unit 120. This makes it possible for the power unit 101 not to be directly facing the lifting platform 300. At the same time, the first transmission unit 110 and the second transmission unit 120 extend in the same direction, which can make them more compact and avoid interference with other directions of the battery swapping equipment 1000 structure, making the structural layout of the battery swapping equipment 1000 more flexible.

[0168] like Figure 6 , 7As shown, the first transmission unit 110 includes a first rotating member 111 and a connecting portion 113 connected by transmission, and the second transmission unit 120 includes a mating portion 121 and a second rotating member 122 connected by transmission. The first rotating member 111 is connected to the power unit 101 by transmission and performs a first rotational motion B under the drive of the power unit 101, and drives the connecting portion 113 to perform a linear motion A. The connecting portion 113 is connected to the mating portion 121, and drives the mating portion 113 to perform a linear motion A, and drives the second rotating member 122 to perform a second rotational motion C. The execution unit 130 is connected to the second rotating member 122 and rotates synchronously with the second rotating member 122.

[0169] In this embodiment, the first rotating component 111 is coaxially connected to the power unit 101, and is used to convert its own rotation into linear motion A of the connecting part 113. The first rotating component 111 can be a lead screw, in which case the connecting part 113 directly or indirectly forms a lead screw pair with the lead screw. The first rotating component 111 can also be a gear set composed of two mutually perpendicular and linked gears, one of which is coaxially arranged with the power unit 101, and the other is connected to the mating part 121 through a transmission belt. In addition to the above two methods, the first rotating component 111 can also be set with other common transmission methods, as long as the axis of the first rotational motion B and the linear motion A are in the same direction.

[0170] The second rotating component 122 operates on the same principle as the first rotating component 111, but with the opposite effect. The second rotating component 122 is coaxially mounted with the execution unit 130, driving the execution unit 130 to synchronously perform the second rotational motion C. The connecting part is connected to the mating part, driving the mating part to move. The mating part can be driven by mechanical structures such as transmission belts, cranks, and connecting rods that can convert linear motion into rotational motion.

[0171] The actuator 130 is connected to the lifting platform 300 through the second rotational motion C. The actuator 130 can be equipped with structures such as a cam 131, crank, and connecting rod to convert rotation into changes in height.

[0172] like Figure 3 , 6 As shown in Figure 7, the lifting device 100 is mounted on the equipment frame 200 via a connecting beam located on the side of the equipment frame 200 facing the lifting platform 300. The power unit 101 and the first rotating component 111 of the first transmission unit 110 are mounted on the connecting beam on the side away from the lifting platform 300. The second transmission unit 120 and the execution unit 130 are mounted on the connecting beam on the side facing the lifting platform 300. A through-hole 211 is provided on the connecting beam for connecting the first transmission unit 110 and the second transmission unit 120. The connecting part 113 of the first transmission unit 110 passes through the through-hole 211 and connects with the mating part 121.

[0173] By placing the first transmission unit 110 and the second transmission unit 120 on the two sides of the connecting beam, mutual interference between components can be avoided, the two sides of the connecting beam can be fully utilized, the structure can be made more compact, and the extension direction of the two units can be ensured to be consistent. It also avoids additional space being occupied in terms of height of the connecting beam.

[0174] In this embodiment, the connecting beam is the crossbeam. Using the crossbeam of the equipment frame 200 as the connecting beam can maximize the compactness of the battery swapping equipment and improve the integration and modularity.

[0175] like Figure 7 , 8 As shown in Figures 11 and 12, the mating part 121 has a mating part body 1211 and a positioning structure 1212 formed on the surface of the mating part body 1211 and protruding or recessed in a direction different from the linear motion direction. The connecting part 113 can contact the positioning structure 1212 in the linear motion direction, and the connecting part 113 has a clearance fit with the positioning structure 1212 in the direction perpendicular to the linear motion direction.

[0176] In this embodiment, the connecting part 113 moves linearly A under the action of the first rotating member 111. The mating part 121 forms a positioning structure 1212 through a protruding or recessed structural design, so that the connecting part 113 can contact the positioning structure 1212 and is located at the upper limit of the positioning structure 1212 in the direction of linear motion A. Thus, when the connecting part 113 moves linearly A, the mating part 121 can also move linearly A synchronously.

[0177] like Figures 8 to 12 As shown, the positioning structure 1212 is a protrusion formed on the surface of the mating part body 1211 and along a direction different from the linear movement direction. The surface of the connecting part 113 has a groove 115 corresponding to the positioning structure 1212. The positioning structure 1212 is at least partially accommodated in the groove 115. Along the linear movement direction, the inner surface of the groove 115 can contact the positioning structure 1212.

[0178] In this embodiment, the mating part 121 and the connecting part 113 are connected together by a concave-convex fit. The protruding positioning structure 1212 of the mating part 121 can be accommodated in the groove part 115 and is limited by the connecting part 113 in the direction of linear motion A, so that when the connecting part 113 moves, the mating part 121 is engaged in the groove part 115 and moves synchronously.

[0179] This concave-convex structure is limited only in the direction of motion. While achieving the transmission effect in the linear motion A direction, it does not restrict other directions, providing freedom in other directions and facilitating disassembly, assembly, and adjustment.

[0180] like Figure 9As shown, along the linear motion direction, the inner surface of the groove 115 is provided with an outwardly penetrating clearance groove. When the positioning structure 1212 is accommodated in the groove 115, the mating part body 1211 extends from the side surface of the connecting part 113 through the clearance groove, and the clearance groove and the mating part body 1211 are in clearance fit.

[0181] In this embodiment, the clearance groove is a U-shaped groove with an open top. The length of the mating part body 1211 is greater than the length of the groove part 115. When the positioning structure 1212 in the middle of the mating part 121 is accommodated in the groove part 115, both ends of the mating part 121 extend out from the clearance groove. This also avoids interference from the connecting part to the mating part body in non-linear motion directions caused by contact between the mating part body and the connecting part, further ensuring the degree of freedom of the mating part in non-linear motion directions.

[0182] By providing a clearance groove, the mating part body 1211 can be directly placed into the inner side of the recessed part 115, further increasing the contact area between the positioning structure 1212 of the mating part body 1211 and the recessed part 115 of the connecting part 113 of the recessed part 115, thus enhancing the load-bearing capacity. At the same time, the mating part body 1211 can also be placed into or removed from the recessed part 115 through the clearance groove, facilitating disassembly, assembly, and adjustment.

[0183] like Figure 9 As shown, along the linear motion direction, at least one inner surface of the groove 115 has a gap relative to the surface of the positioning structure 1212.

[0184] In this embodiment, the length of the groove 115 is greater than the length of the protrusion of the positioning structure 1212, so that when the positioning structure 1212 is placed in the groove 115, it is not completely locked inside the groove 115. Instead, there is a gap between the inner surface of the groove 115 and the positioning structure 1212, allowing for a certain degree of freedom in the direction of linear movement A. When the connecting part 113 drives the mating part 121 to move, the positioning structure 1212 acts on one side of the inner side of the groove 115.

[0185] This structure allows the positioning structure 1212 to be not completely fixed within the groove 115, enabling easy installation and removal without affecting transmission performance. It also allows for easy rotation and other unrelated linear motions in the A direction within the groove 115, facilitating adjustments.

[0186] When there is a gap between the inner surface of the groove 115 and the surface of the positioning structure 1212, a detection mechanism (e.g., a Hall sensor and a magnet) can be provided to accurately reflect whether the lifting platform 300 has been raised or lowered into position by detecting the rotational position of the second rotating member 122. Figure 8As shown, the connecting part 113 also includes a reinforcing member 1151, the two ends of which are connected to the two ends of the groove part 115 along the linear motion direction.

[0187] In this embodiment, there is one reinforcing member 1151, but the number can be adjusted according to needs in other embodiments.

[0188] The power element is pulled by the groove 115 of the mating part 121 as the force point. By connecting the top of the groove 115 with additional reinforcing members 1151, the load-bearing capacity of the groove 115 can be improved, making the transmission more stable.

[0189] like Figure 7 , 10 As shown, the second transmission unit 120 also includes a flexible member 123, which is connected to the second rotating member 122 to form a flexible transmission mechanism. A mating part 121 is disposed on the flexible member 123 and is connected to the second rotating member 122 through the flexible member 123. The second rotating member 122 is a transmission wheel.

[0190] In this embodiment, the second transmission unit 120 converts linear motion A into second rotational motion C through a flexible connection. When the mating part 121 performs linear motion A, it drives the flexible member 123 to perform linear motion A. The flexible member 123 then drives the second rotating member 122 to perform the second rotational motion C. The flexible member 123 can be a common structure such as a transmission belt or chain, and the second rotating member 122 can also be a common structure such as a transmission wheel or sprocket.

[0191] By setting a flexible member 123 to connect the mating part 121 and the second rotating member 122, the movement of the mating part 121 is converted into the movement of the flexible member 123 and then into the rotation of the second rotating member 122, resulting in good transmission effect and high transmission strength.

[0192] like Figure 10 , 11 As shown, the flexible member 123 has an opening 1231 between the second rotating member 122. The mating part 121 is telescopic, and the telescopic direction is along the linear motion direction. The two ends of the mating part 121 along its own telescopic direction are respectively connected to the two ends of the opening 1231 on the flexible member 123. The mating part body 1211 adjusts the tension of the flexible member 123 by telescopically extending and retracting itself.

[0193] In this embodiment, the flexible member 123 has an opening 1231 for mounting the mating part 121. The two ends of the mating part 121 are respectively connected to the two ends of the opening 1231 of the flexible member 123, and the flexible member 123 is closed. The mating part 121 can extend and retract along the linear motion direction A.

[0194] The mating part 121 is embedded into the flexible member 123, enclosing the flexible member 123 and tightly connecting with it, resulting in better transmission performance. The mating part 121 can extend and retract along the linear motion A direction, ensuring the tension of the flexible member 123 through extension and retraction.

[0195] like Figure 8 , 11 As shown, the mating part 121 includes a mating part body 1211 and a tension adjustment structure 1213. The mating part body 1211 includes a rod and two adjusting members 1214. The length extension direction of the rod forms the extension and retraction direction of the mating part body 1211 itself. The two adjusting members 1214 are connected to the rod with reverse threads and are spaced apart to form the two ends of the adjustment assembly along its own extension and retraction direction. The distance between the two adjusting members 1214 is adjusted by driving the rod to rotate, thereby realizing the extension and retraction of the adjustment assembly. The tension adjustment structure 1213 is provided on the surface of the part of the rod that is exposed above the two adjusting members 1214.

[0196] In this embodiment, the extension and retraction of the mating part 121 is achieved by the tension adjustment structure 1213. The two ends of the rod of the mating part body 1211 have opposite threads, and the two ends are connected to the adjusting members 1214 with opposite threads. The tension adjustment structure 1213 is located in the middle of the rod and is not connected to the adjusting member 1214. It is used to drive the rod to rotate, so that the two ends of the rod can be screwed into or out of the adjusting member 1214 at the same time, thereby reducing or increasing the overall length of the mating part 121.

[0197] The tension adjustment structure 1213 is a structure protruding from the mating part body 1211, and its action causes the mating part body 1211 to rotate. This tension adjustment structure 1213 is the same as the positioning structure 1212 described above, which mates with the groove 115 of the connecting part 113. This component serves both for connection and tension adjustment, making the structure of the mating part 121 compact, without occupying additional space beyond the flexible member 123, and avoiding interference with the movement of the flexible member 123.

[0198] like Figure 8 , 11 As shown, the tension adjustment structure 1213 is configured to allow for docking with a rotating tool.

[0199] In this embodiment, the tension adjustment structure 1213 is a nut-type structure, which can be connected and rotated using common tools such as wrenches for easy adjustment.

[0200] like Figure 8 , 11As shown, the mating part body 1211 also includes a locking member 1215 corresponding to the adjusting member 1214. The locking member 1215 is threadedly connected to the rod and abuts against the corresponding adjusting member 1214. The two adjusting members 1214 are respectively disposed at both ends of the rod.

[0201] In this embodiment, the rod of the mating part body 1211 also includes a locking member 1215 that is threaded to both ends of the rod. The locking member 1215 abuts against the inner side of the adjusting member 1214 and is used to limit the adjusting member 1214.

[0202] When the adjusting member 1214 is rotated to a suitable length to tension the entire flexible member 123, the locking member 1215 can rotate and move towards the adjusting member 1214 on the corresponding side to squeeze and limit the adjusting member 1214, thereby improving the stability after tensioning.

[0203] In other embodiments, the locking element 1215 may be provided only at one end.

[0204] The adjusting member 1214 is provided with a connecting hole 1216 for connecting to the end of the opening 1231. This facilitates connection to the end of the opening 1231 of the flexible member 123.

[0205] In other embodiments, the adjusting member 1214 and the flexible member 123 may also be connected by other detachable connections or by direct fixed connections such as welding.

[0206] like Figure 10 As shown, the flexible member 123 located between the second rotating members 122 is composed of a first mating section 1232 and a second mating section 1233 arranged in parallel. Each of the first mating section 1232 and the second mating section 1233 is provided with a mating part 121, and the connecting part 113 is connected through one of the mating parts 121.

[0207] In this embodiment, the flexible member 123 is divided into a first mating section 1232 and a second mating section 1233, with the connection point with the second rotating member 122 as the boundary. The first mating section 1232 and the second mating section 1233 are arranged in parallel and connected to each other. They respectively mate with the second rotating member 122 on its upper and lower sides. Only the mating part 121 on one of the mating sections needs to mate with the connecting part 113 to achieve the corresponding transmission function.

[0208] The other mating section 121 only serves to adjust the tension of that section. By adjusting synchronously from both the top and bottom, unnecessary rotation of the second rotating member 122 caused by unilateral adjustment can be avoided, ensuring that the second rotating member 122 maintains a fixed angle while driving the actuator 130.

[0209] like Figures 7 to 10As shown, the first transmission unit 110 also includes a sliding member 112, a connecting part 113 is disposed on the sliding member 112 and moves with the sliding member 112, and a first rotating member 111 is connected to the connecting part through the sliding member 112. The first rotating member 111 is a lead screw, and the lead screw and the sliding member 112 form a lead screw pair.

[0210] In this embodiment, the slider 112 slides via the guide rail 114, which is parallel to the first rotating member 111 and is disposed on both sides of the first rotating member 111.

[0211] By employing a lead screw pair structure connected to the power unit 101 for transmission, the power unit 101 can achieve linear motion of the first transmission unit 110 simply by rotating. During this process, the lead screw slows down the rotational motion of the power unit 101 when it is converted into linear motion of the sliding member 112, thereby controlling the lifting speed of the lifting platform 300 and amplifying the power. This allows for the use of a smaller power unit, reducing its overall size. The power unit 101 includes a motor; in this embodiment, the motor is a servo motor.

[0212] The servo motor has high precision and can accurately drive the cam 131 to rotate into position, achieving precise lifting and lowering.

[0213] like Figure 13 , 14 As shown, the execution unit 130 includes a cam 131. One end of the cam 131 is connected to the rotation shaft of the second rotating member 122 and rotates synchronously with the rotation shaft. The other end of the cam 131 is provided with an extension 132 facing the lifting platform 300. The extension 132 extends into the slide groove 133 provided on the lifting platform 300 and can slide in the slide groove 133.

[0214] The protruding part 132 is located at the protruding end of the cam 131 and is engaged in the horizontally arranged slide groove 133. When the cam 131 rotates, the horizontal movement of the protruding end of the cam 131 is converted into the movement of the protruding part 132 within the slide groove 133, thus preventing it from acting on the lifting platform 300. This ensures that the lifting platform 300 is only subjected to the force in the vertical direction of the cam 131. Ultimately, this avoids horizontal movement of the lifting platform 300 and improves the lifting effect.

[0215] When the protruding end of cam 131 is at its lowest point, the lifting platform 300 is at its origin. After cam 131 has rotated 180 degrees, the protruding end is at its highest point, and the lifting platform is at its highest position.

[0216] When the lifting mechanism 100 of this embodiment is running, the screw of the first rotating member 111 is driven to rotate by the power unit 101, which drives the sliding member 112 to start from the farthest side of the automatic force unit 101 and begin to move closer to the power unit 101. At this time, the convex end of the cam is at the lowest end, and the lifting platform is at the origin.

[0217] (Right now Figure 5 , 6 (7 states)

[0218] by Figure 7 For example, when the lifting platform 300 rises, the sliding member 112 gradually moves to the maximum limit position close to the power unit 101, and the cam 131 rotates counterclockwise with the rotation of the second rotating member 122 until its protruding end is at the highest position. At this time, the lifting platform 300 is at the highest position.

[0219] When the lifting platform 300 descends, the sliding member 112 will move from the maximum limit position close to the power unit 101 to the direction away from the power unit 101, and the cam 131 will rotate clockwise until its protruding end is at the bottom. At this time, the lifting platform 300 returns to the original position.

[0220] In this embodiment, the lifting mechanism 100 reciprocates between these two points, and the cam 131 also reciprocates only within the range of 180 degrees.

[0221] like Figure 15 , 16 As shown, in addition to the lifting device 100 described above, the battery swapping equipment 1000 of this embodiment also includes a guide mechanism 400 to assist the lifting platform 300 in lifting and guiding it during the lifting process. The guide mechanism 400 includes sliding grooves 401 disposed on the two sides of the battery swapping equipment 1000 where the lifting mechanism is not located, and sliders 402 disposed on the corresponding surfaces of the lifting platform 300. The sliding grooves 401 are vertically arranged, and the sliders 402 are positioned at the upper limit of the sliding grooves 401 in the horizontal direction and can slide on the sliding grooves 401 in the vertical direction. When the lifting platform 300 is lifted or lowered, the guide mechanism 400 guides it to ensure that its vertical lifting and lowering does not involve horizontal displacement.

[0222] This embodiment also provides a battery swapping station that includes the aforementioned battery swapping device 1000. This battery swapping station can swap batteries for engineering vehicles such as light trucks and heavy trucks.

[0223] While specific embodiments of the present invention have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of the present invention 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 invention, but all such changes and modifications fall within the scope of protection of the present invention.

Claims

1. A battery swapping device, characterized in that, The battery swapping equipment includes an equipment frame, a lifting platform, and two lifting devices. The lifting platform is vertically connected to the equipment frame. The two lifting devices are mounted on the equipment frame and located on opposite sides of the lifting platform. Each lifting device is connected to a corresponding side of the lifting platform and drives the lifting platform to rise and fall through synchronous action. The lifting platform is used to hold the battery pack. The device frame has a receiving space with an opening facing the battery pack, and the lifting platform is disposed within the receiving space; The equipment frame has a recessed portion with an opening facing the lifting direction of the lifting platform. The recessed portion is connected to the receiving space and is used to extend the transport equipment into the receiving space to transfer the battery pack. The lower edge of the recessed portion is lower than the placement surface of the lifting platform used to place the battery pack. The recess and the lifting device are located on different sides of the lifting platform.

2. The battery swapping equipment as described in claim 1, characterized in that, The equipment frame has two longitudinal beams arranged opposite each other and a crossbeam spaced between the two longitudinal beams. The crossbeams and the longitudinal beams enclose the receiving space, and two lifting devices are respectively arranged on the two crossbeams.

3. The battery swapping equipment as described in claim 2, characterized in that: The two longitudinal beams extend along the traveling direction of the power swapping equipment; And / or, the power swapping equipment also has a traveling mechanism distributed on the two longitudinal beams and located on the outside of the two transverse beams.

4. The battery swapping equipment as described in claim 1, characterized in that, When the lifting platform is lowered to its original position, the placement surface of the lifting platform for placing the battery pack is lower than the end face of the accommodating space facing the battery pack. When the battery pack is placed on the lifting platform, along the lifting direction of the lifting platform, the projection of the battery pack on the battery swapping equipment is within the area surrounded by the accommodating space.

5. The battery swapping equipment as described in claim 1, characterized in that, A battery pack transfer channel is formed on the lifting platform. The battery pack transfer channel extends from the placement surface of the lifting platform for placing the battery pack in a direction away from the battery pack. The end of the battery pack transfer channel communicates with the outside of the battery swapping equipment via the recess.

6. The battery swapping equipment as described in claim 5, characterized in that, The lifting platform has a platform base and a tray and an auxiliary support mechanism disposed on the platform base. The auxiliary support mechanism is spaced apart from the tray, and the space between the auxiliary support mechanism and the tray forms the battery pack transfer channel.

7. The battery swapping device as described in any one of claims 1-6, characterized in that, The lifting device includes a power unit, a first transmission unit, a second transmission unit, and an execution unit connected in sequence: The power unit is used to output the first rotational motion; The first transmission unit is used to convert the first rotational motion into linear motion; The second transmission unit is used to convert the linear motion into a second rotational motion and drive the execution unit to rotate synchronously, so as to drive the lifting platform to rise and fall.

8. The battery swapping equipment as described in claim 7, characterized in that, The rotation axis of the first rotational motion and the direction of the linear motion both extend along one side of the lifting platform, while the rotation axis of the second rotational motion points towards the lifting platform.

9. The battery swapping equipment as described in claim 7, characterized in that, The first transmission unit includes a first rotating component and a connecting part that are connected by transmission; the second transmission unit includes a mating part and a second rotating component that are connected by transmission. The first rotating component is connected to the power unit for transmission, and performs a first rotational motion under the drive of the power unit, and drives the connecting part to perform linear motion; The connecting part is connected to the mating part, which drives the mating part to make linear motion and drives the second rotating part to make a second rotational motion; The execution unit is connected to the second rotating component and rotates synchronously with the second rotating component.

10. The battery swapping equipment as described in claim 9, characterized in that, The lifting device is mounted on the equipment frame via a connecting beam located on one side of the lifting platform. The power unit and the first rotating component of the first transmission unit are mounted on the connecting beam on the side away from the lifting platform. The second transmission unit and the execution unit are mounted on the connecting beam on the side facing the lifting platform. The connecting beam has a through-hole for connecting the first transmission unit and the second transmission unit. The connecting part of the first transmission unit passes through the through-hole and connects with the mating part.

11. The battery swapping equipment as described in claim 10, characterized in that, The mating part has a mating part body and a positioning structure formed on the surface of the mating part body and protruding or recessed along a direction different from the linear movement direction; The connecting part can contact the positioning structure along the linear motion direction, and / or the connecting part can be clearance-fitted with the positioning structure in a direction perpendicular to the linear motion direction.

12. The battery swapping equipment as described in claim 11, characterized in that, The second transmission unit further includes a flexible component, which is connected to the second rotating component to form a flexible transmission mechanism. The mating part is disposed on the flexible component, and the mating part is connected to the second rotating component through the flexible component. And / or, the second rotating component is a transmission wheel, which is rotatably connected to the connecting beam.

13. The battery swapping equipment as described in claim 12, characterized in that, The flexible member has an opening between the second rotating member. The mating part is telescopic, and the telescopic direction is along the linear motion direction. The two ends of the mating part along its own telescopic direction are respectively connected to the two ends of the opening on the flexible member. The mating part body adjusts the tension of the flexible member by telescopically extending and retracting itself.

14. The battery swapping equipment as described in claim 13, characterized in that, The mating part includes a mating part body and a tension adjustment structure. The mating part body includes a rod and two adjusting members. The length extension direction of the rod forms the extension and contraction direction of the mating part body itself. The two adjusting members are connected to the rod by reverse threads and are spaced apart to form the two ends of the mating part body along its own extension and contraction direction. The extension and contraction of the mating part body is realized by driving the rod to rotate and adjusting the distance between the two adjusting members. The tension adjustment structure is provided on the surface of the part of the rod that is exposed above the two adjusting members.

15. The battery swapping equipment as described in claim 10, characterized in that, The first transmission unit further includes a sliding member, which can move relative to the connecting beam in the linear motion direction. The connecting part is disposed on the sliding member and moves with the sliding member. The first rotating member is connected to the connecting part through the sliding member. The first rotating member is a lead screw, and the lead screw and the sliding member form a lead screw pair. And / or, the power unit includes a motor, which is mounted on the connecting beam; And / or, the actuator includes a cam having an extension toward the lifting platform, the extension extending into a groove on the lifting platform and being slidable within the groove.

16. The battery swapping equipment as described in claim 15, characterized in that, The motor is a servo motor.

17. A battery swapping station, characterized in that, Includes the battery swapping equipment as described in any one of claims 1-16.

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