CN219312727U - Battery replacement equipment - Google Patents

Abstract

The utility model relates to the technical field of new energy power conversion, and particularly discloses power conversion equipment which comprises a power conversion platform and a lifting device, wherein the lifting device acts on the power conversion platform to enable the power conversion platform to lift, the lifting device comprises a lifting driving unit and a transmission unit which are in transmission connection, the transmission unit comprises a connecting rod type telescopic mechanism, the connecting rod type telescopic mechanism comprises two rod assemblies which are in cross connection, and the same side of the two rod assemblies faces the power conversion platform. The battery exchange equipment provided by the utility model comprises the lifting device which acts on the battery exchange platform, so that the battery exchange platform is driven to move up and down in the process of disassembling or installing a battery pack of the battery exchange equipment, the battery exchange equipment is safe and reliable, the connecting rod type telescopic mechanism can improve the stability and the verticality of the lifting of the battery exchange platform, the space occupied by the relative movement direction can be saved, and the structure is compact. The same side of two pole subassemblies is towards trading the electric platform, and the structure is simplified reduces the horizontal volume of trading equipment, reduces whole size, improves and trades electric efficiency.

Description

a power exchange device

technical field

The utility model relates to the technical field of new energy power exchange, in particular to a power exchange equipment.

Background technique

With the development and popularization of new energy vehicles, battery pack quick replacement technology is also developing rapidly. At present, the development of quick-change technology for small passenger cars is the most mature, and the batteries of passenger cars are fixed on the chassis of the vehicle. Remove or install. Moreover, due to the small weight of the passenger car, the volume of the battery pack is relatively small, and the operability of battery replacement is very convenient.

However, for large vehicles, such as heavy trucks or light trucks, the vehicle body and cargo weight are very large, which leads to a high demand for the capacity of the battery pack for large vehicles, and it must have a large enough capacity to support large vehicles. kilometer. Therefore, in the prior art, the large-scale vehicles of the new energy series all fix the larger battery container on the girder of the vehicle by means of top-hanging, and the battery container is set up next to the driver's cab, which leads to the replacement of the battery container during the driving process and the top-hanging. During the charging process, it will bring great potential safety hazards to the driver and the vehicle itself; moreover, if the battery fails, etc., it will directly cause personal injury to the driver. In addition, the top-lifting method has high requirements on the site of the power station, and the power station needs to have a large enough area to carry out hoisting equipment, transfer batteries and store batteries, etc., resulting in high station construction costs.

Therefore, for large vehicles, there is an urgent need for a safer, more reliable, and easier-to-popular battery replacement mode. For example, the chassis-type battery swap mode of passenger cars is adopted. In the chassis-type battery swap mode, it is necessary to move the battery swap equipment (or battery swap trolley) to the battery swap position under the battery swap vehicle, and then perform lifting operations and remove or install the battery pack to complete the entire swap. electrical process. However, in this battery replacement process, it is necessary to use the lifting device to lift the battery pack: including lowering the original unlocked battery pack of the vehicle to a low position to facilitate the transfer of the drained battery pack to the cache platform for charging and Lift the fully charged battery pack to a high position where it can be locked to the vehicle. Due to the limited space at the bottom of the vehicle and the precise control of the lifting stroke of the battery pack, the existing lifting device has a complex structure, takes up a large space, and the lifting stroke is limited by the height of the battery swap base itself. Therefore, the chassis-type battery swap The lifting equipment replacement equipment needs to be optimized.

Contents of the invention

The purpose of the utility model is to provide a battery exchange equipment, which is used to solve the common problems in the battery exchange process of existing heavy trucks and other vehicles that the battery exchange operation is relatively complicated, the precision is low, the structure of the lifting device is complicated, and the space occupied is large. at least one of the other issues.

In order to achieve the above purpose, the utility model provides a battery exchange equipment, including a battery exchange platform and a lifting device. The lifting device acts on the battery exchange platform to lift the battery exchange platform. unit, the transmission unit includes a link-type telescopic mechanism, and the link-type telescopic mechanism includes two cross-connected rod assemblies, and the same side of the two rod assemblies faces the power exchange platform.

The battery exchange equipment provided by the utility model includes a lifting device acting on the battery exchange platform, so as to drive the battery exchange platform to move up and down during the process of disassembling the battery exchange equipment or installing the battery pack, thereby realizing chassis-type battery exchange, which is safer, more reliable, and easier Popularity, the convenience, accuracy and efficiency of the preparatory work for the disassembly and assembly of the battery pack are guaranteed through the lifting device. The power exchange platform is lifted through the cooperation of the lifting drive unit and the transmission unit, which can ensure the timeliness and feasibility of the lifting control, and then ensure the control accuracy of the entire lifting process. The connecting rod type telescopic mechanism can improve the stability and verticality of the power exchange platform. In the contracted state, the space occupied along the moving direction is smaller, which can save the space occupied by the relative moving direction. At the same time, the lifting stroke is far beyond It takes up space in the contracted state, which makes the structure of the power exchange equipment more compact in the moving direction while ensuring the lifting stroke. The same side of the two pole assemblies faces the power exchange platform, thereby saving the number of pole assemblies and the number of lifting drive units, simplifying the structure, reducing the lateral volume of the power exchange equipment, reducing the overall size, and improving power exchange efficiency.

Preferably, the link type telescopic mechanism is provided with a fixed connection position and a lifting connection position for acting on the power exchange platform, and the lifting connection position is raised and lowered relative to the fixed connection position by controlling the intersection angle of the two rod assemblies.

By controlling the intersection angle of the two rod assemblies, the lifting connection position is raised and lowered relative to the fixed connection position, thereby controlling the lifting of the power exchange platform, improving the stability and verticality of the power exchange platform's lifting, the structure is simple, and the lifting stroke is large. The control is accurate.

Preferably, the two ends of each rod assembly are respectively a rotating connection end for rotating connection and a moving connection end for moving connection; end, and jointly constitute the lifting connection position; the lower ends of the two rod components of the link type telescopic mechanism are respectively the rotating connection end and the moving connection end, and together constitute the fixed connection position.

Preferably, the rotating connection end realizes the rotating connection through the rotating pair, and the moving connecting end realizes the sliding connection through the sliding pair.

Preferably, the rotating pair includes a rotatably connected rotating seat and a rotating shaft; or, the sliding pair includes a slidably connected slide rail and a slider, or a slidably connected roller and a slide groove.

The rotating connection of the rotating connection end is realized by the rotating pair, and the sliding connection of the moving connecting end is realized by the sliding pair. The rotating pair and the sliding pair are used as the structure of the transfer connection. The structure is simple and reliable, which can effectively ensure the connection between the two ends of the rod assembly and other parts. Reliable connection prevents the operation of the connecting rod telescopic mechanism from being stuck or fails due to falling off, which ensures the smooth lifting of the power exchange platform. Preferably, the rotating pair includes a rotatably connected rotating seat and a rotating shaft; or, the sliding pair includes a slidably connected slide rail and a slider, or a slidably connected roller and a slide groove.

Preferably, the lifting device further includes a lifting stroke protection mechanism, and the lifting stroke protection mechanism includes a first lifting stroke protection mechanism for limiting the movement range of the mobile connection end; or, the lifting stroke protection mechanism includes a first lifting stroke protection mechanism for limiting the relative sliding stroke of the sliding pair The second lifting stroke protection mechanism.

Through the first lifting stroke protection mechanism and the second stroke protection mechanism, limit position protection for the highest and lowest lifting positions is realized. To avoid the failure of the battery exchange due to the lifting of the battery exchange platform beyond the battery exchange range, and ensure the efficiency of the battery exchange.

Preferably, a plurality of lifting devices are symmetrically arranged on two opposite sides of the power exchange platform.

It can make the opposite sides of the power exchange platform evenly receive the force of the lifting device, so as to lift up and down smoothly and ensure smooth power exchange.

Preferably, the lifting device further includes an adapter portion, the adapter portion includes an interconnected adapter piece and a low-position extension piece, the adapter piece is connected to the upper end of the link type telescopic mechanism, and the low-position extension piece extends downward from the adapter piece To form a lifting connection position, which is used to reduce the height of the power exchange platform when the link type telescopic mechanism is in a contracted state.

Through the adapter and the low extension, the height of the power exchange platform can be further reduced, and the structure is compact, which is more suitable for the situation where the space at the bottom of the vehicle is limited.

Preferably, the upper ends of the two rod assemblies of the link-type telescopic mechanism are connected to the adapter, and the lower extension is connected to the adapter and located on the same side of the two rod assemblies of the link-type telescopic mechanism.

Preferably, the adapter is a groove-shaped cross-section profile, and the connection between the upper ends of the two rod assemblies of the link type telescopic mechanism and the adapter is located in the groove of the groove-shaped cross-section.

Preferably, the lower extension piece includes a vertical plate, the top end of the vertical plate is connected to the adapter piece, and the bottom end of the vertical plate forms the lifting connection position.

Through the vertical plate, the overall height of the battery exchange equipment is reduced after the battery exchange platform is lowered, which makes it easy to enter the bottom of the vehicle. The battery exchange efficiency is high, and it is suitable for the chassis height of different models of battery exchange vehicles and battery packs of different heights and sizes.

Preferably, the power exchange platform is connected to the bottom of the lower extension.

Further reduce the overall height of the power exchange platform after it is lowered.

Preferably, each rod assembly includes a rod, and the rods of the two rod assemblies cross each other and are rotatably connected at the intersection.

Each rod assembly includes a rod, so that the structure of the rod assembly can be simplified and the height of the rod assembly can be reduced after being lowered.

Preferably, each rod assembly includes a plurality of rods that are rotatably connected in sequence, the rods of the two rod assemblies are arranged in one-to-one correspondence, and the correspondingly arranged rods intersect each other and are rotatably connected at the intersection.

By arranging a plurality of successively rotatably connected rods for each rod assembly, the height of the rod assembly after rising can be increased, thereby improving the lifting stroke of the power exchange platform.

Preferably, the lifting drive unit is used to output linear motion to drive the link type telescopic mechanism to expand and contract, and the lifting drive unit includes a linear power output unit.

Preferably, the linear power output unit includes an air cylinder and a hydraulic cylinder.

By adopting a linear power output unit, the structure is simple, no complex transmission parts are required, and the structure of the power exchange equipment is simplified.

Preferably, the power exchange equipment includes a guiding device for assisting the lifting platform in lifting and guiding during the lifting process, and the guiding direction of the guiding device is consistent with the lifting direction of the lifting platform.

Preferably, the guide device includes guide rails arranged on the side of the power exchange equipment and sliders arranged on the corresponding surface of the power exchange platform.

By setting the guide device, the lifting stability of the power exchange platform is better, and the guide rail and the slider are used to make the guide effect better.

Preferably, there are multiple lifting devices, the multiple lifting devices are arranged on two opposite sides of the power exchange platform, and the guide rails are arranged on two sides of the power exchange equipment that are not provided with lifting devices.

The lifting device and guide rails are arranged in the above positions to realize all-round guidance and positioning of the battery exchange platform, with better guiding effect and better lifting stability of the battery exchange platform.

Preferably, the power exchange equipment further includes a power exchange base, the power exchange platform is raised and lowered relative to the power exchange base, and the guide device includes a first rod assembly and a second rod assembly, and the first rod assembly and the second rod assembly each have a A movable connecting end for movably connecting one of the power changing platform and the power changing base, and a rotating connecting end for being rotatably connected with the other of the power changing platform and the power changing base, the first rod assembly and the second The rod assemblies are hinged to each other, so that the guiding device expands and contracts along the lifting direction of the power changing platform as the power changing platform rises and falls.

The guide way of the first rod assembly and the second rod assembly can guide the power exchange platform. Compared with the guide device in the prior art, the guide assembly takes up less space along the moving direction and can save the height direction The space occupied (in the vertical direction) can effectively reduce the height of the power exchange equipment while ensuring the lifting stroke, so as to meet the power exchange needs of electric vehicles, especially electric vehicles with a low chassis.

Preferably, the battery swapping device further includes a battery swapping base. A storage area with an upward opening is formed in the battery swapping base. The battery swapping platform moves up and down in the storage area. The size of the storage area along the width direction of the battery swapping vehicle is the same as that of the battery swapping vehicle. The width of the vehicle is matched, and the lifting device is arranged on two opposite sides of the accommodation area along the width direction of the battery exchange vehicle.

Through the accommodating area, the storage of the battery exchange platform at the lowest position is provided, which facilitates the battery exchange equipment to enter the bottom of the vehicle, reduces the overall height, and ensures the lifting stroke.

Preferably, the battery exchange platform is provided with a vehicle body positioning part protruding outward from the battery exchange base, and the base is provided with a concave part, and the concave part is used to avoid the vehicle body positioning part, so that the vehicle body positioning part can protrude from the concave part, Thereby, the height of the power exchange platform can be reduced.

The vehicle body positioning unit and the vehicle are positioned, which in turn facilitates the subsequent movement and unlocking of the battery exchange platform, ensuring that the battery exchange equipment and the vehicle are relatively stationary during the process of unlocking, so that only the battery exchange platform moves to achieve unlocking, and the control is accurate and reliable. Improve power exchange efficiency.

Preferably, the battery swapping device further includes a battery swapping base, and a running mechanism is provided on the battery swapping base, and the running mechanism is used to drive the battery swapping device to move.

By using the battery exchange base as the supporting base, the structure of the battery exchange equipment is complete and stable, and the traveling mechanism is used to drive the battery exchange equipment to move, making the battery exchange movement smooth, flexible to use, and improving the efficiency of battery exchange.

Description of drawings

The accompanying drawings described here are used to provide a further understanding of the utility model and constitute a part of the utility model. The schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an improper limitation of the utility model . In the attached picture:

Fig. 1 is a schematic structural diagram of a power exchange device in an embodiment of the present invention.

Fig. 2 is a schematic diagram of the cooperative structure of the link type telescopic mechanism and the hydraulic cylinder in an embodiment of the present invention.

Fig. 3 is a schematic top view of the structure of the battery exchange device in an embodiment of the present invention.

Fig. 4 is a schematic diagram of the connection between the hydraulic cylinder of the connecting rod telescoping mechanism and the power exchange platform in an embodiment of the present invention.

Fig. 5 is a schematic structural diagram of an adapter part in an embodiment of the present invention.

Fig. 6 is a structural schematic diagram of a guiding device in an embodiment of the present invention.

Explanation of reference signs:

100-lifting device; 200-battery replacement equipment; 201-battery replacement platform; 2011-body positioning department; 202-battery replacement base; Unit; 410-hydraulic cylinder; 510-connecting rod telescopic mechanism; 520-rod; 5201-first rod; 5202-second rod; 511-fixed connection position; 512-lifting connection position; 513-first Rod assembly; 514-second rod assembly; 515-rotating connection end; 516-moving connection end; 519-sliding pair; 517-rotating pair; 5171-rotating seat; 5172-rotating shaft; -Adapter; 720-Low extension; 7201-Stand.

Detailed ways

In order to illustrate the overall concept of the present utility model more clearly, the following will be described in detail by way of examples in conjunction with the accompanying drawings.

It should be noted that in the following description, a lot of specific details have been set forth in order to fully understand the utility model, but the utility model can also be implemented in other ways that are different from those described here. It is not intended to be limited by the specific embodiments disclosed below.

In one embodiment of the present invention, as shown in Figures 1-6, a battery exchange device 200 is provided, including a battery exchange platform 201 and a lifting device 100, and the lifting device 100 acts on the battery exchange platform 201 to make the battery exchange The platform 201 is raised and lowered, and the lifting device 100 includes a transmission-connected lifting drive unit 400 and a transmission unit. The transmission unit includes a link type telescopic mechanism 510. The link type telescopic mechanism 510 includes two cross-connected rod assemblies. The same side faces the power exchange platform 201 . Referring to FIG. 1 , the same side of the two pole assemblies faces the power exchange platform, that is: the pole assemblies extend along the left side of the power exchange platform, so the right sides of the two pole assemblies both face the power exchange platform. The transmission principle of the link telescoping mechanism 510 will be described in detail later in conjunction with specific embodiments.

The power exchange equipment 200 provided by the utility model includes a lifting device 100 acting on the power exchange platform 201, so as to drive the power exchange platform 201 to move up and down during the process of disassembling or installing the battery pack 300 in the power exchange equipment 200, thereby realizing chassis-type power exchange , safer, more reliable, and easier to popularize, the convenience, accuracy and efficiency of the preparatory work for the disassembly and assembly of the battery pack 300 are guaranteed through the lifting device 100 . The power exchange platform 201 is lifted through the cooperation of the lifting drive unit 400 and the link-type telescopic mechanism 510, which can ensure the timeliness and feasibility of the lifting control, and then ensure the control accuracy of the entire lifting process. The connecting rod type telescopic mechanism 510 can improve the stability and verticality of the power exchange platform 201 lifting. In the contracted state, the space occupied along the moving direction is smaller, which can save the space occupied by the relative moving direction. At the same time, the lifting stroke It occupies far more space than that in the contracted state, which makes the structure of the power exchange device 200 more compact in the moving direction while ensuring the lifting stroke. The same side of the two pole assemblies faces the power exchange platform 201, thereby saving the number of pole assemblies and the number of lifting drive units 400, simplifying the structure, reducing the lateral volume of the power exchange equipment, reducing the overall size, and improving power exchange efficiency.

In a preferred embodiment, the link type telescopic mechanism 510 is provided with a fixed connection position 511 and a lifting connection position 512 for acting on the power exchange platform 201. By controlling the intersection angle of the two rod assemblies, the lifting connection The position 512 is raised and lowered relative to the fixedly connected position 511 .

By controlling the intersection angle of the two rod assemblies, the lifting connection position 512 is raised and lowered relative to the fixed connection position 511, thereby controlling the lifting of the power exchange platform 201, and improving the stability and verticality of the power exchange platform 201. The structure is simple and easy to lift. The lifting stroke is large and the control is accurate.

In a preferred embodiment, as shown in FIG. 1 , FIG. 2 and FIG. 3 , the two ends of each rod assembly are respectively a rotating connection end 515 for rotating connection and a moving connection end 516 for moving connection; The upper ends of the two rod assemblies of the link type telescopic mechanism 510 are the rotating connection end 515 and the moving connection end 516 respectively, and jointly constitute the lifting connection position 512; The end 515 and the mobile connection end 516 together constitute the fixed connection position 511.

It should be noted that due to the change of the crossing angle, the movement of the rotating connecting end 515 is not limited to only rotating. The rod 5202 rotates to realize the lifting movement of the rotating connection end 515 , therefore, the rotating connection end on the upper end of the first rod 5201 can form a lifting connection position with the moving connecting end on the upper end of the second rod 5202 .

In a preferred embodiment, as shown in FIG. 1 and FIG. 2 , the rotating connection end 515 is rotatably connected through a rotating pair 517 , and the moving connecting end 516 is slidably connected through a sliding pair 519 .

In a preferred embodiment, as shown in FIG. 3 , the rotating pair 517 includes a rotating seat 5171 and a rotating shaft 5172 that are rotatably connected; or, the sliding pair 519 includes a slide rail and a slider that are slidably connected, or can Attached rollers and chutes.

The rotating connection of the rotating connection end 515 is realized by the rotating pair 517, and the sliding connection of the moving connecting end 516 is realized by the sliding pair 519. The rotating pair 517 and the sliding pair 519 are used as a transfer connection structure, the structure is simple and reliable, and the rod assembly can be effectively guaranteed. The reliable connection between the two ends and other components prevents the link type telescopic mechanism 510 from being stuck or fails due to falling off, and ensures the smooth lifting of the power exchange platform 201 . Preferably, the rotating pair 517 includes a rotatably connected rotating seat 5171 and a rotating shaft 5172; or, the sliding pair 519 includes a slidably connected slide rail and a slider, or a slidably connected roller and a slide groove.

In a preferred embodiment, as shown in FIG. 1 , the lifting device 100 further includes a lifting stroke protection mechanism 600 , and the lifting stroke protection mechanism 600 includes a first lifting stroke protection mechanism 600 for limiting the movement range of the mobile connection end 516 or, the lifting stroke protection mechanism 600 includes a second lifting stroke protection mechanism 600 for limiting the relative sliding stroke of the sliding pair 519 .

Through the first lifting stroke protection mechanism 600 and the second stroke protection mechanism, limit position protection for the highest and lowest lifting positions is realized. Avoid the failure of power swap caused by the lifting and lowering of the power swap platform 201 beyond the range of power swap, and ensure the efficiency of power swap.

Preferably, a plurality of lifting devices 100 are symmetrically arranged on two opposite sides of the power exchange platform 201 .

The opposite sides of the power exchange platform 201 can be evenly affected by the force of the lifting device 100, so as to lift up and down smoothly and ensure smooth power exchange.

In a preferred embodiment, the lifting device 100 further includes an adapter portion, the adapter portion includes an interconnected adapter piece 710 and a low extension piece 720, the adapter piece 710 is connected to the upper end of the link type telescopic mechanism 510 , the lower extension piece 720 extends downward from the adapter piece 710 to form a lifting connection position 512 for lowering the height of the power exchange platform 201 when the link type telescopic mechanism 510 is in a retracted state.

Through the adapter 710 and the low-level extension 720, the height of the power exchange platform 201 can be further reduced, and the structure is compact, which is more suitable for the situation where the space at the bottom of the vehicle is limited.

Preferably, the upper ends of the two rod assemblies of the link-type telescopic mechanism 510 are connected to the adapter 710 , and the lower extension 720 is connected to the adapter 710 and located on the same side of the two rod assemblies of the link-type telescopic mechanism 510 .

Preferably, the adapter 710 is provided with a groove-shaped cross-sectional profile 712 with the opening facing upward, and the connection between the upper ends of the two rod assemblies of the link type telescopic mechanism 510 and the adapter 710 is located on the groove-shaped cross-sectional profile 712 in the groove.

Preferably, the lower extension piece 720 includes a vertical plate 7201, the top end of the vertical plate 7201 is connected with the adapter piece 710, and the bottom end of the vertical plate forms the lifting connection position.

Through the L-shaped vertical plate 7201 and the horizontal plate structure, the overall height of the power exchange equipment 200 is reduced after the power exchange platform 201 is lowered, thereby facilitating access to the bottom of the vehicle, and the power exchange efficiency is high.

Preferably, the power exchange platform 201 is connected to the bottom of the lower extension 720 .

Further reduce the overall height of the power exchange platform 201 after it descends.

Preferably, each rod assembly includes a rod 520, and the rods 520 of the two rod assemblies, that is, the first rod 5201 and the second rod 5202 cross each other and are rotatably connected at the intersection.

Each rod assembly includes a rod member 520, so that the structure of the rod assembly can be simplified and the height of the rod assembly can be lowered.

Preferably, each rod assembly includes a plurality of rods 520 that are rotatably connected in sequence, and the rods 520 of the two rod assemblies are arranged in one-to-one correspondence, and the corresponding rods 520 intersect each other and are rotatably connected at the intersection.

Of course, in another embodiment of the present invention, each rod assembly can be provided with a plurality of sequentially rotatably connected rods 520, which can increase the height of the rod assembly after rising, thereby improving the lifting stroke of the power exchange platform 201 .

Preferably, the lifting drive unit 400 is used to output linear motion to drive the link type telescopic mechanism 510 to expand and contract, and the lifting drive unit 400 includes a linear power output unit.

In a preferred embodiment of the present utility model, the linear power output unit includes an air cylinder and a hydraulic cylinder 410 . As shown in Figures 1 and 2, a hydraulic cylinder 410 is used in a preferred embodiment.

By adopting the linear power output unit, the structure is simple, no complicated transmission parts are needed, and the structure of the power exchange device 200 is simplified.

The utility model is not limited about the specific structure of the guide, for example:

Embodiment 1, the battery swapping device 200 includes a guide device 203 for assisting the lifting platform in lifting and guiding during the lifting process, and the guiding direction of the guide device 203 is consistent with the lifting direction of the lifting platform.

Preferably, the guide device 203 includes a guide rail disposed on a side of the power swapping device 200 and a slider disposed on a corresponding surface of the power swapping platform 201 .

By setting the guide device 203, the lifting stability of the power exchange platform 201 is better, and the guiding effect is better by adopting the cooperation of the guide rail and the slider.

Preferably, multiple lifting devices 100 are provided, and the multiple lifting devices 100 are arranged on two opposite sides of the power exchange platform 201 , and the guide rails are arranged on two sides of the power exchange equipment 200 that are not provided with the lifting devices 100 .

The lifting device 100 and the guide rails are arranged in the above positions to realize all-round guidance and positioning of the battery exchange platform 201 , the guidance effect is better, and the lifting stability of the battery exchange platform 201 is better.

Embodiment 2, as shown in FIG. 6 , the battery exchange equipment 200 also includes a battery exchange base 202, the battery exchange platform 201 lifts relative to the battery exchange base 202, and the guide device 203 includes a first rod assembly 513 and a second rod assembly 514, Both the first rod assembly 513 and the second rod assembly 514 have a movable connection end 516 for being movably connected to one of the power exchange platform 201 and the power exchange base 202 , and for connecting to the power exchange platform 201 and the power exchange base 202 . Another rotatably connected rotating connection end 515 in the seat 202, the first rod assembly 513 and the second rod assembly 514 are hinged to each other, so that the guide device 203 moves along the lifting direction of the power changing platform 201 with the lifting of the power changing platform 201 telescopic.

Using the guiding method of the first rod assembly 513 and the second rod assembly 514, the power exchange platform 201 can be guided. Compared with the guide device 203 in the prior art, this guide assembly occupies less space along the moving direction. The space occupied by the height direction (vertical direction) can be saved, and the height of the power swapping device 200 can be effectively reduced while ensuring the lifting stroke, so as to meet the power swapping requirements of electric vehicles, especially electric vehicles with low chassis.

In a preferred embodiment of the present utility model, the power exchange equipment 200 also includes a battery exchange base 202. A storage area 2021 with an upward opening is formed in the battery exchange base 202. The battery exchange platform 201 moves up and down in the accommodation area 2021. The size of the storage area 2021 along the width direction of the battery swap vehicle matches the width of the battery swap vehicle, and the lifting device 100 is disposed on two opposite sides of the storage area 2021 along the width direction of the battery swap vehicle.

Through the accommodation area 2021, the storage of the power exchange platform 201 at the lowest position is provided, which facilitates the power exchange equipment 200 to enter the bottom of the vehicle, thereby reducing the overall height and ensuring the lifting stroke.

Preferably, the battery exchange platform 201 is provided with a vehicle body positioning part 2011 protruding outward from the battery exchange base 202, and the battery exchange base 202 is provided with a recessed part, which is used to avoid the vehicle body positioning part, so that the vehicle body positioning part can protruding from the recessed portion, so that the height of the power exchange platform 201 can be reduced.

Positioning by the vehicle body positioning unit and the vehicle will facilitate subsequent movement and unlocking of the battery exchange platform 201, ensuring that the battery exchange equipment 200 and the vehicle are relatively stationary during the process of unlocking, so that only the battery exchange platform 201 moves to achieve unlocking and control. Accurate and reliable, improve the efficiency of battery replacement.

Preferably, the battery swapping device 200 further includes a battery swapping base 202, on which a running mechanism 2022 is arranged, and the running mechanism 2022 is used to drive the battery swapping device 200 to move.

By using the battery swapping base 202 as a supporting base, the structure of the battery swapping device 200 is complete and stable, and the traveling mechanism 2022 is used to drive the battery swapping device 200 to move, making the battery swapping movement smooth, flexible to use, and improving power swapping efficiency.

In the embodiment shown in Figures 1-6 of the present utility model, a group of rod assemblies are respectively arranged on the left and right sides of the power exchange platform, and the movement principle of each rod assembly is: as shown in Figure 2, the hydraulic cylinder 410 moves along According to the arrow, the moving connecting end 516 at the bottom of the first rod 5201 is moved laterally, and the crossing angle relative to the second rod 5202 changes, and the rotating connecting end 515 at the top of the first rod 5201 will rotate and move up and down. The rotating connecting end of the bottom end of the second rod 5202 adapts to changes, and the moving connecting end at the top of the second rod 5202 moves up and down. Therefore, the rotating connecting end of the upper end of the first rod 5201 can be connected with the mobile connection of the upper end of the second rod 5202 The end constitutes the lifting connection position, which drives the power exchange platform to rise and fall.

In describing the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", etc. indicate The orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation or be constructed in a specific orientation. and operation, and therefore cannot be construed as a limitation of the present utility model.

In the present application, descriptions such as "first", "second" and so on are used for description purposes only, and should not be understood as indicating or implying their relative importance or implicitly indicating the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features.

The technical solution protected by the utility model is not limited to the above-mentioned embodiments, and it should be pointed out that the combination of the technical solution in any one embodiment and the technical solutions in one or more other embodiments is within the protection scope of the utility model. Although the utility model has been described in detail with general description and specific examples above, it is obvious to those skilled in the art that some modifications or improvements can be made on the basis of the utility model. Therefore, the modifications or improvements made on the basis of not departing from the spirit of the utility model all belong to the protection scope of the utility model.

Claims (22)

1. The utility model provides a trade electric equipment, its characterized in that includes trading electric platform and lifting device, lifting device acts on trade electric platform makes trade electric platform goes up and down, lifting device includes lift drive unit and the drive unit of transmission connection, the drive unit includes connecting rod formula telescopic machanism, connecting rod formula telescopic machanism includes two pole subassemblies of cross connection, two the same side of pole subassembly is towards trade electric platform.

2. A power conversion device according to claim 1, wherein the link rod type telescopic mechanism is provided with a fixed connection position and a lifting connection position for acting on the power conversion platform, and the lifting connection position is lifted relative to the fixed connection position by controlling the crossing angle of the two rod assemblies.

3. A power conversion apparatus according to claim 2, wherein both ends of each of said lever assemblies are respectively a rotation connection end for rotation connection and a movement connection end for movement connection; the upper ends of the two rod assemblies of the connecting rod type telescopic mechanism are respectively a rotating connecting end and a moving connecting end, and the two rod assemblies form the lifting connecting position together; the lower ends of the two rod assemblies of the connecting rod type telescopic mechanism are respectively a rotary connecting end and a movable connecting end, and the fixed connecting positions are formed together.

4. A power conversion apparatus according to claim 3, wherein the rotary connection terminal is rotatably connected by a revolute pair, and the movable connection terminal is slidably connected by a sliding pair.

5. The power conversion equipment according to claim 4, wherein the revolute pair comprises a revolute seat and a revolute shaft which are rotatably connected; or the sliding pair comprises a sliding rail and a sliding block which can be connected in a sliding way, or a roller and a sliding groove which can be connected in a sliding way.

6. A power conversion apparatus according to claim 4, wherein the lifting device further comprises a lifting stroke protection mechanism including a first lifting stroke protection mechanism for limiting a movement range of the movable connection end; alternatively, the lifting stroke protection mechanism comprises a second lifting stroke protection mechanism for limiting the relative sliding stroke of the sliding pair.

7. A power conversion apparatus according to claim 1, wherein a plurality of said lifting devices are symmetrically disposed on opposite sides of said power conversion platform.

8. A power conversion device according to claim 1, wherein the lifting means further comprises an adapter part, the adapter part comprising an adapter part and a low-level extension part connected to each other, the adapter part being connected to the upper end of the link-type telescopic mechanism, the low-level extension part extending downwards from the adapter part to form the lifting connection position for lowering the height of the power conversion platform when the link-type telescopic mechanism is in a contracted state.

9. A power conversion apparatus according to claim 8, wherein upper ends of the two rod assemblies of the link type telescopic mechanism are connected to the adapter member, and the low-level extension member is connected to the adapter member and is located on the same side of the two rod assemblies of the link type telescopic mechanism.

10. A power conversion device according to claim 8, wherein the adaptor is a groove-shaped section bar, and the connection part of the upper ends of the two rod assemblies of the connecting rod type telescopic mechanism and the adaptor is positioned in the groove of the groove-shaped section bar.

11. A power conversion apparatus according to claim 8, wherein the low-level extension member includes a riser, a top end of the riser being connected to the adapter, and a bottom end of the riser forming the lifting connection position.

12. A power conversion apparatus according to claim 8, wherein said power conversion stage is connected to a bottom end of said lower extension member.

13. A power conversion apparatus according to claim 1, wherein each of said bar assemblies comprises a bar member, the bar members of two of said bar assemblies intersecting each other and being rotatably connected at the intersection;

or each rod assembly comprises a plurality of rods which are sequentially and rotatably connected, the rods of the two rod assemblies are arranged in one-to-one correspondence, and the rods which are correspondingly arranged are mutually intersected and rotatably connected at the intersection.

14. A power conversion apparatus according to claim 1, wherein the elevation driving unit is configured to output a linear motion to drive the link type telescopic mechanism to be telescopic, and the elevation driving unit includes a linear power output unit.

15. The power conversion apparatus according to claim 14, wherein the linear power output unit comprises a cylinder and a hydraulic cylinder.

16. A power conversion device according to claim 1, characterized in that the power conversion device comprises a guiding device for assisting the lifting of the power conversion platform and guiding the power conversion platform in the lifting process, and the guiding direction of the guiding device is consistent with the lifting direction of the power conversion platform.

17. A power conversion apparatus according to claim 16, wherein the guiding means comprises a guide rail provided at a side surface in the power conversion apparatus and a slider provided at a corresponding surface of the power conversion platform.

18. A power conversion apparatus according to claim 17, wherein a plurality of lifting devices are provided, the plurality of lifting devices being provided on two opposite sides of the power conversion platform, the guide rail being provided on two sides of the power conversion apparatus where the lifting devices are not provided.

19. A power conversion apparatus according to claim 16 further comprising a power conversion base, the power conversion stage being elevated relative to the power conversion base, the guide means comprising a first rod assembly and a second rod assembly, the first rod assembly and the second rod assembly each having a movable connection for movable connection with one of the power conversion stage and the power conversion base and a rotatable connection for rotatable connection with the other of the power conversion stage and the power conversion base, the first rod assembly and the second rod assembly being hinged to each other to allow the guide means to flex in an elevation direction of the power conversion stage as the power conversion stage is elevated.

20. The power conversion device according to claim 1, further comprising a power conversion base, wherein an accommodating area with an upward opening is formed in the power conversion base, the power conversion platform is lifted in the accommodating area, the size of the accommodating area in the width direction of the power conversion vehicle is matched with the width of the power conversion vehicle, and the lifting devices are arranged on two opposite sides of the accommodating area in the width direction of the power conversion vehicle.

21. The power conversion device according to claim 1, wherein the power conversion platform is provided with a vehicle body positioning part extending out of the power conversion base, the base is provided with a concave part, and the concave part is used for avoiding the vehicle body positioning part, so that the vehicle body positioning part can extend out of the concave part, and the height of the power conversion platform can be reduced.

22. The power conversion equipment according to claim 1, further comprising a power conversion base, wherein a traveling mechanism is arranged on the power conversion base and used for driving the power conversion equipment to move.

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